Title of Invention

IMPROVED PUMP STRUCTURE

Abstract An improved pump structure for controlling the water pressure of the pump includes a body whose central portion has an accommodating part for accommodating a connecting element. The end of the connecting element toward the accommodating part has a containing room. The containing room is disposed with a water pressure adjusting module for controlling a water current, producing a loop current. Using a fixed body structure and a replaceable connecting element, the invention can be applied to pumps of fixed pressure and variable pressure. This achieves the effect of molding and the goal of replaceability.
Full Text FORM 2
THE PATENT ACT 1970 (39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See Section 10, and rule 13)
1. TITLE OF INVENTION IMPROVED PUMP STRUCTURE

2. APPLICANT(S)
a) Name
b) Nationality
c) Address

TENG CHUNG LE
TAIWAN National
NO.145, DARONG ST., DAYA TOWNSHIP,
TAICHUNG COUNTY 428,
TAIWAN (R.O.C.)

AND

a) Name
b) Nationality
c) Address

TENG CHUNG JUNG
TAIWAN National
NO.20, LANE 104, SEC.l, SHENLIN RD.,
DAYA TOWNSHIP, TAICHUNG COUNTY 42 8,
TAIWAN (R.O.C.)

3. PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed : -

BACKGROUND OF THE INVENTION Field of Invention
The invention relates to an improved pump structure and, in particular, to a pump structure that shares fixed and variable pressure adjusting modules.
Related Art
Common pumps have two kinds of structures: variable and fixed pressures. Please refer to FIGS. 10 to 12 for a conventional variable-pressure pump structure for adjusting the supplying water pressure of the pump. It has a hollow body 9 having a water inlet 91 on one side and a water outlet 92 on the opposite side. The central portion of the hollow body 9 has a containing room 93 with an inner thread section 931. The bottom of the containing room 93 has a through hole 932. One side of the containing room 93 has a via hole 933. The through hole 932 of the containing room 93 is disposed in sequence a stopping element 94, an elastic element 95, and an adjusting knob 96 from inside out. The adjusting knob 96 is threaded onto the inner thread section 931 of the containing room 93 using its outer thread section. By turning the adjusting knob 96, the position thereof inside the containing room 93 is changed. This changes the pressure experienced by the elastic element 95. The stopping element 94 is then pushed by the elastic element 95 to press against the through hole 932, thereby closing the through hole 932.
In its normal state, the water pressure is lower than the pressure experienced by the stopping element 94 so that the through hole 932 is closed. If the water pressure exceeds a predetermined pressure that the elastic element 95 can withstand, the water pressure forces the stopping element 94 to recede toward the elastic element
95. The water thus can flow into the containing room 93 and then flow out through
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the via hole 933, producing a loop current. The water with large pressure thus keeps producing loop currents in order to output a desired water pressure.
For pump manufacturers, they need different molds for making the pressure adjusting modules for pumps of fixed and variable pressures. Many different molds are required for suitable assemblies and applications of the pumps. Since components of the pumps are not replaceable, the costs for molds and assembly are quite high. Therefore, how to reduce the cost of molds and increase the replaceability of pump components are important.
SUMMARY OF THE INVENTION
An objective of the invention is to solve the above-mentioned problems and provide an improved pump structure. Using a sharing body structure, the invention can be installed with a pressure adjusting structure of fixed or variable pressure. The body stiucture is thus unified, enhancing the molding efficiency and saving the cost.
Another objective of the invention is to use a water pressure adjusting module to enable various components therein to share. Thus, it can be widely used in pumps of fixed and variable pressures. Each component has good replaceability. This helps achieve the foal of standardizing replaceable components.
To achieve the above objectives, the invention provides an improved pump structure for controlling water pressure of the pump. It includes a hollow body, a connecting element, and a water pressure adjusting module.
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The hollow body has a water inlet on one side and a water outlet on the opposite side. The central portion of the body has an accommodating part. The body is also provided with a water flowing space connecting the water inlet and the water outlet. The accommodating part has a via hole connecting to the water inlet. The bottom of the accommodating part has a through hole connecting to the water flowing space. Thus, water can flow through the through hole, the via hole, and the accommodating part.
The connecting part is fixed in the accommodating part. The end of the connecting part toward the accommodating part has a containing room. The containing room has a guiding groove on the side corresponding to the via hole of the accommodating part for connecting the via hole and the containing room.
The water pressure adjusting module is disposed in the containing room. It includes an elastic element and a stopping element. The stopping element is provided for blocking the through hole of the accommodating part. The end of the stopping element opposite to the through hole of the accommodating part urges against the elastic element.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will become more fully understood from the detailed description given herein below illustration only, and thus is not limitative of the present invention, and wherein:
FIG. 1 is a three-dimensional exploded view of the fixed-pressure pump in the
first embodiment;
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FIG. 2 is a three-dimensional assembly view of the fixed-pressure pump in the
first embodiment;
FIG. 3 is a cross-sectional view of the fixed-pressure pump in the first
embodiment, showing the production of a loop current;
FIG. 4 is a cross-sectional view of the fixed-pressure pump in the first
embodiment, showing the inclusion of leakproof ring;
FIG. 5 is a three-dimensional exploded view of the fixed-pressure pump in the
second embodiment, showing the structure of adjusting knob for
adjusting the pressure;
FIG. 6 is a three-dimensional exploded view of the fixed-pressure pump in the
third embodiment;
FIG. 7 is a cross-sectional view of the fixed-pressure pump in the third
embodiment, showing another type of connecting element;
FIG. 8 is a three-dimensional exploded view of the variable-pressure pump in
the fourth embodiment, showing the structure of another adjusting knob
for adjusting water pressure;
FIG. 9 is a cross-sectional view of the variable-pressure pump in the fourth
embodiment, showing the structure of another adjusting knob for
adjusting water pressure;
FIG. 10 is a three-dimensional assembly view of the conventional variable-pressure pump;
FIG. 11 shows the conventional variable-pressure pump in use, where the water
pressure does not exceed the limit of the elastic element; and
FIG. 12 shows the conventional variable-pressure pump in use, where the water
pressure exceeds the limit of the elastic element and a loop current is
produced.
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DETAILED DESCRIPTION OF THE INVENTION
The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
FIGS. 1 to 9 illustrate a preferred embodiment of the invention. The preferred embodiment is provided only for the purpose of explanation and should not be construed to restrict the scope of the invention defined by the claims.
Please refer to FIGS. 1 and 3 for the application of the invention to a fixed-pressure pump. It includes a hollow body 1, a connecting element 2, and a water pressure adjusting module 3.
The body 1 has a water inlet 11 on one side and a water outlet 12 on the other side. The central portion of the body 1 has an accommodating part 13. The body 1 has in addition a water flowing space 14 connecting the water inlet 11 and the water outlet. Please refer to FIG. 3. The accommodating part 13 is roughly a circular recess. One side of the accommodating part 13 is formed with a via hole 131 connecting to the water inlet 11. The bottom of the accommodating part 13 has a through hole 132 connecting to the water flowing space 14. Water can thus flow through the through hole 132, the via hole 131, and the accommodating part 13 to the interior of the body 1.
The connecting element 2 is roughly a circular cylinder and fixed in the accommodating part 13. The end of the connecting element 2 toward the accommodating part 13 of the body 1 is formed with a containing room 21. In this
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embodiment, the containing room 21 is a recess. The side of the containing room 21 corresponding to the via hole 131 of the accommodating part 13 has a guiding recess 211 for connecting the via hole 131 and the containing room 21.
The water pressure adjusting module 3 is disposed in the containing room 21. The water pressure adjusting module 3 includes an elastic element 31 and a stopping element 32. The elastic element 31 in this embodiment is a spring.
The stopping element 32 is provided for blocking the through hole 132 of the accommodating part 13. The end of the stopping element 32 opposite to the through hole 132 of the accommodating part 13 penetrates through the elastic element 31 and urges against the elastic element 31. The stopping element 32 is extended outward with a wing-like structure near its central portion for preventing itself from completely falling into the elastic element 31.
Please refer to FIG. 3. The above embodiment can produce the loop current effect as in the prior art, thereby controlling the pump at a fixed water pressure. When the water pressure exceeds that one that the elastic element 31 can withstand, the stopping element 32 automatically recedes so that water can flow through the through hole 132 of the accommodating part 13, thereby lowering the water pressure.
With reference to FIG. 4, a leakproof ring 22 is further disclosed between the connecting element 2 and the accommodating part 13. In this case, water leakage can be avoided when the connecting element 2 is disposed in the water flowing space 14.
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The above description is for the structure of fixed pressure. To enable sharing between pumps of fixed and variable pressures, please refer to FIG. 5 for the schematic cross-sectional view of the invention applied to a variable pressure pump according to the second embodiment.
The containing room 21A is a via hole. The end of the containing room 21A away from the via hole 132A of the accommodating part 13A has an inner thread section 212A. The inner thread section 212A is threaded with an adjusting knob 33A, which has an outer thread section 331A corresponding to the inner thread section 212A of the containing room 21A. The end of the adjusting knob 33A toward the elastic element 31A is provided with a recess 332A for accommodating the elastic element 31A. The adjusting knob 33A urges against the elastic element 31A. The adjusting knob is displaced up and downs by turning it, thereby pressing against the elastic element 31A. The pressure of the stopping element 32A on the through hole 132A of the accommodating part 13A is thus changed to change the water pressure that the stopping element 32A can withstand. This method can generate a loop current for adjusting the water pressure.
The invention, of course, has other embodiments with minor changes from the above-mentioned ones. Please refer to FIGS. 6 and 7 for the third embodiment of the invention. It shows another improved pump structure with fixed pressure.
In this embodiment, the body IB has an open space 133B on the outer edge of the top of the accommodating part 13B. The open space 133B is roughly a triangular recess. Each corner of the open space 133B has a screw hole 134B. A vertical step difference 135B is formed near the central portion around the accommodating part 13B.
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The connecting element 2B is extended with a wing part 23B in the radial direction around the end away from the containing room 21B. The wing-like structure 23B is accommodated inside the open space 133B of the accommodating part 13B. The wing parts 23B have through holes 231B corresponding to the screw holes 134B for locking elements 4B to go through and lock onto the corresponding screw holes 134B. This connects the connecting element 2B to the accommodating part 13B.
Between each of the wing part 23B and the guiding groove 211B, the connecting element 2B has another step difference 24B corresponding to the step difference 135B of the body IB. A leakproof ring 22B is disposed between the two step differences 135B, 24B. When the connecting element 2B is locked by the locking elements 4B to the accommodating part 13B, the leakproof element 2B can prevent water leakage.
The matching between the step differences 135B, 24B can have various embodiments, as long as the structure can prevent water leakage.
Take the third embodiment as an example. Locking elements are used to lock the connecting element inside the accommodating part. The leakproof ring is employed to further prevent water leakage. Therefore, it does not only achieve all effects in the first embodiment, but also has a firm fixture for the connecting element to prevent water leakage.
Finally, FIGS. 8 and 9 show the fourth embodiment of the invention. It is another variable pressure pump.

In this embodiment, the containing room 21C is a via hole. The end of the containing room 21C away from the through hole 132C of the accommodating part 13C has an inner thread section 212C. The inner thread section 212C is threaded with an adjusting knob 33C, which has an outer thread section 331C corresponding to the inner thread section 212C of the accommodating part 13C. One end of the adjusting knob 33C has an annular groove 333C for accommodating a water-stopping ring 25C inside the containing room 21C. The bottom of the adjusting knob 33C has a recess 332C for accommodating and urging against the elastic element 31C. The adjusting knob 33C is displaced up and downs by turning it. The elastic element 31C is depressed to change the pressure of the stopping element 32C on the through hole 132C of the accommodating part 13C. This changes the water pressure that the stopping element 32C can withstand. A loop current is generated to adjust the water pressure.
As described hereinbefore, by disposing a fixed body structure and a replaceable connecting element, the invention only requires the use of one mold for forming the body structure. The structures of different connecting elements only differ in the containing room with the groove or via hole. Therefore, the invention is cost-efficient. Moreover, since all components can be shared, the disclosed structure can be used in pumps with fixed and variable pressures. Due to the replaceability of various components, the production cost can be greatly reduced. This also achieves the goal of standardizing replaceable components.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various
modifications of the disclosed embodiments, as well as alternative embodiments,
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will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.
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WE CLAIM:
1. An improved pump structure for controlling the water pressure of a pump, comprising:
a hollow body, which has a water inlet on one side and a water outlet on the other side, an accommodating part in its central portion, and a water-flowing space connecting the water inlet and the water outlet, the accommodating part having a via hole on one side connecting to the water inlet and a through hole at its bottom connecting to the water-flowing space so that the accommodating part and the body interior are in fluid communications via the through hole and the via hole;
a connecting element, which is fixed in the accommodating part and has a containing room on the end toward the accommodating part of the body, the containing room having a guiding groove on the side corresponding to the via hole of the accommodating part for connecting the via hole and the containing room; and
a water pressure adjusting module, which is disposed in the containing room and includes an elastic element and a stopping element for blocking the through hole of the accommodating part, wherein the stopping element urges against the elastic element on the end opposite to the through hole of the accommodating part.
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2. The improved pump structure of claim 1, wherein a leakproof ring is disposed between the connecting element and the accommodating part for preventing water leakage.
3. The improved pump structure of claim 1, wherein the accommodating part is roughly a circular recess and the connecting element is roughly a circular cylinder.
4. The improved pump structure of claim 1, wherein the containing room is a recess.
5. The improved pump structure of claim 1, wherein the elastic element is a spring.
6. The improved pump structure of claim 1, wherein the stopping element penetrates into the elastic element on the end opposite to the accommodating part and urges against the elastic element, a wing-like structure is formed in the central portion of the stopping element for preventing the stopping element from falling into the elastic element.
7. The improved pump structure of claim 1, wherein the containing room is a via hole and has an inner thread section on the end away from the through hole of the accommodating part, the inner thread section is threaded with an adjusting knob that has an outer thread section corresponding to the inner thread section of the adjusting knob, and the adjusting knob urges against the elastic element so that the adjusting knob is displaced up and downs to
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depress the elastic by turning, thereby changing the pressure imposed by the stopping element on the through hole of the accommodating part.
8. The improved pump structure of claim 7, wherein adjusting knob is formed with a recess on the end toward the elastic element for urging against the elastic element.
9. The improved pump structure of claim 8, wherein the adjusting knob has an annular recess for accommodating a water-stopping ring to prevent water leakage.
10. The improved pump structure of claim 1, wherein the outer edge of the top of the accommodating part is an open space, each corner of which has a screw hole, and a vertical step difference is formed near the central portion around the accommodating part.
11. The improved pump structure of claim 10, wherein the open space is roughly a triangular recess.
12. The improved pump structure of claim 10, wherein the connecting element is extended with a wing part in the radial direction on the end away form the containing room, each wing part is accommodated in the open space of the accommodating part, and each wing part is formed with a through hole for a locking element to go through and lock onto the corresponding screw hole, thereby connecting the connecting element in the accommodating part.
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13. The improved pump structure of claim 12, wherein the connecting element has another step difference between each wing par and the guiding groove corresponding to the step difference on the body, and a leakproof ring is disposed between the two step differences for preventing water leakage.
Dated this 24th day of August 2007


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ABSTRACT
An improved pump structure for controlling the water pressure of the pump includes a body whose central portion has an accommodating part for accommodating a connecting element. The end of the connecting element toward the accommodating part has a containing room. The containing room is disposed with a water pressure adjusting module for controlling a water current, producing a loop current. Using a fixed body structure and a replaceable connecting element, the invention can be applied to pumps of fixed pressure and variable pressure. This achieves the effect of molding and the goal of replaceability.
To,
The Controller of Patents,
The Patent Office,
Mumbai
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Documents:

1625-MUM-2007-ABSTRACT(09-12-2010).pdf

1625-MUM-2007-ABSTRACT(24-8-2007).pdf

1625-MUM-2007-ABSTRACT(GRANTED)-(14-7-2011).pdf

1625-mum-2007-abstract.doc

1625-mum-2007-abstract.pdf

1625-MUM-2007-CANCELLED PAGES(09-12-2010).pdf

1625-MUM-2007-CLAIMS(AMENDED)-(09-12-2010).pdf

1625-MUM-2007-CLAIMS(GRANTED)-(14-7-2011).pdf

1625-mum-2007-claims.doc

1625-mum-2007-claims.pdf

1625-MUM-2007-CORRESPONDENCE(09-12-2010).pdf

1625-mum-2007-correspondence(16-1-2008).pdf

1625-MUM-2007-CORRESPONDENCE(IPO)-(14-7-2011).pdf

1625-mum-2007-correspondence(ipo)-(9-12-2009).pdf

1625-mum-2007-correspondence-received.pdf

1625-mum-2007-description (complete).pdf

1625-MUM-2007-DESCRIPTION(GRANTED)-(14-7-2011).pdf

1625-MUM-2007-DRAWING(GRANTED)-(14-7-2011).pdf

1625-mum-2007-drawings.pdf

1625-MUM-2007-FORM 2(GRANTED)-(14-7-2011).pdf

1625-MUM-2007-FORM 2(TITLE PAGE)-(24-8-2007).pdf

1625-MUM-2007-FORM 2(TITLE PAGE)-(GRANTED)-(14-7-2011).pdf

1625-MUM-2007-FORM 3(09-12-2010).pdf

1625-MUM-2007-FORM 3(24-8-2007).pdf

1625-MUM-2007-FORM 5(09-12-2010).pdf

1625-MUM-2007-FORM 5(24-8-2007).pdf

1625-mum-2007-form-1.pdf

1625-mum-2007-form-18.pdf

1625-mum-2007-form-2.doc

1625-mum-2007-form-2.pdf

1625-mum-2007-form-3.pdf

1625-mum-2007-form-5.pdf

1625-mum-2007-general power of attorney(16-1-2008).pdf

1625-MUM-2007-PETITION UNDER RULE 137(09-12-2010).pdf

1625-MUM-2007-REPLY TO EXAMINATION REPORT(09-12-2010).pdf

1625-MUM-2007-SPECIFICATION(AMENDED)-(09-12-2010).pdf

abstract1.jpg


Patent Number 248431
Indian Patent Application Number 1625/MUM/2007
PG Journal Number 29/2011
Publication Date 22-Jul-2011
Grant Date 14-Jul-2011
Date of Filing 24-Aug-2007
Name of Patentee TENG CHUNG LE
Applicant Address NO.145, DARONG ST., DAYA TOWNSHIP, TAICHUNG COUNTY 428, TAIWAN
Inventors:
# Inventor's Name Inventor's Address
1 TENG CHUNG LE NO.145, DARONG ST., DAYA TOWNSHIP, TAICHUNG COUNTY 428, TAIWAN
2 TENG CHUNG JUNG NO.20, LANE 104, SEC.1, SHENLIN RD., DAYA TOWNSHIP, TAICHUNG COUNTY 428, TAIWAN
PCT International Classification Number F04D29/00F01D5/00F04B17/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA