CN210266058U - Connecting piece for differential pressure control valve and differential pressure control valve - Google Patents
Connecting piece for differential pressure control valve and differential pressure control valve Download PDFInfo
- Publication number
- CN210266058U CN210266058U CN201921285366.2U CN201921285366U CN210266058U CN 210266058 U CN210266058 U CN 210266058U CN 201921285366 U CN201921285366 U CN 201921285366U CN 210266058 U CN210266058 U CN 210266058U
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- Prior art keywords
- control valve
- differential pressure
- pressure control
- adapter sleeve
- valve
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- 239000012528 membrane Substances 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims 6
- 238000010168 coupling process Methods 0.000 claims 6
- 238000005859 coupling reaction Methods 0.000 claims 6
- 239000002775 capsule Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a connecting piece and differential pressure control valve for differential pressure control valve, membrane box seat and adapter sleeve including integrated into one piece, be provided with the activity chamber that can supply the diaphragm activity in the membrane box seat, the outside middle part of adapter sleeve is provided with first support edge, the inboard of adapter sleeve is provided with the second and holds in the palm the edge. The utility model discloses with the split type institutional advancement formula structure as an organic whole of diaphragm capsule seat and adapter sleeve among the conventional art, removed from and be used for the numerous loaded down with trivial details processes of connecting between the two, not only improved the intensity and the leakproofness of this connecting piece itself, simplified the manufacturing procedure moreover, great improvement work efficiency.
Description
Technical Field
The utility model relates to a pressure differential control valve connection structure field especially relates to a connecting piece and pressure differential control valve for pressure differential control valve.
Background
The pressure difference control valve is a common functional valve, does not need any external energy, automatically adjusts by means of the pressure change of a medium to be adjusted, and automatically eliminates the residual pressure head of a pipe network and the flow change caused by pressure fluctuation, the company discloses a steel welding pressure difference control valve in the utility model patent specification with the publication number of 'CN 204437394U', the structure of which is shown in figure 1-2, the steel welding pressure difference control valve comprises a valve body 1-1, a first connecting pipe 1-2 and a second connecting pipe 1-3 are respectively arranged at the two sides of the valve body 1-1, a valve seat 1-4 is fixedly arranged in the valve body 1-1, the first connecting pipe 1-2 extends into the valve body 1-1 and is connected with a valve seat 1-4, a round hole is arranged at the top of the valve body 1-1, a connecting sleeve 1-5 is arranged in the round hole, and a membrane box seat 1-6 is connected at the top of, the top of the membrane box seat 1-6 is connected with a membrane box cover 1-7, a membrane 1-8 is arranged between the membrane box cover 1-7 and the membrane box seat 1-6, a valve core 1-9 is arranged in the membrane box seat 1-6 and can move up and down, the top of the valve core 1-9 is connected with the membrane 1-8 through an upper membrane pad 1-10 and a lower membrane pad 1-11, a guide sleeve 1-12 is arranged in the membrane box seat 1-6, a spring 1-13 is arranged between the guide sleeve 1-12 and the lower membrane pad 1-11, the bottom of the valve core 1-9 is provided with an upper conical valve flap 1-14 and a lower conical valve flap 1-15, the valve seat 1-4 is matched with a commercial valve flap 1-14 and the lower conical valve flap 1-15 and is provided with an upper valve port 1-16 and a lower valve port 1-17, the second connecting pipe 1-3 is connected with the top of the diaphragm box cover 1-7 through the pressure guide pipe 1-18, and the pressure above the diaphragm 1-8 is transmitted through the pressure guide pipe 1-18 to realize the self-adjustment of the upper and lower positions of the valve core 1-9, namely the size of the valve port opening.
In the structure, the connecting sleeve 1-5 is fixedly connected with the valve body 1-1 in a welding mode, the connecting sleeve 1-5 is in threaded connection with the membrane box seat 1-6 through the thread structure 1-19, and the sealing ring 1-20 is arranged between the connecting sleeve 1-5 and the membrane box seat 1-6 and used for improving the sealing property.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide a connecting piece and differential pressure control valve for differential pressure control valve to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a connecting piece for pressure differential control valve, includes integrated into one piece's bellows seat and adapter sleeve, be provided with the activity chamber that can supply the diaphragm activity in the bellows seat, the outside middle part of adapter sleeve is provided with first support edge, the inboard of adapter sleeve is provided with the second and holds in the palm the edge.
Furthermore, a plurality of mounting holes are formed in the outer side of the membrane box seat along the circumferential direction.
Further, the bottom on first support edge is provided with the welding liquid holding tank.
Further, the welding liquid holding tank is provided with many places along circumference is even.
Further, the welding liquid holding tank is an arc-shaped tank.
Further, the welding liquid accommodating groove is a square groove.
A pressure difference control valve comprises the connecting piece for the pressure difference control valve.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses with the split type institutional advancement formula structure as an organic whole of diaphragm capsule seat and adapter sleeve among the conventional art, removed from and be used for the numerous loaded down with trivial details processes of connecting between the two, not only improved the intensity and the leakproofness of this connecting piece itself, simplified the manufacturing procedure moreover, great improvement work efficiency.
Drawings
FIG. 1 is a schematic diagram of a prior art differential pressure balancing valve;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural diagram of a connecting member for a differential pressure control valve according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a top view of FIG. 3;
FIG. 6 is a bottom view of FIG. 3;
fig. 7 is a schematic structural diagram of a differential pressure control valve according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 3-6, the connector for a differential pressure control valve according to the present embodiment includes a capsule seat 1 and a connecting sleeve 2, wherein the capsule seat 1 and the connecting sleeve 2 are integrally formed, the integral forming refers to integral casting, a movable cavity 3 for moving a diaphragm is disposed in the capsule seat 1, a first supporting edge 4 is disposed in the middle of the outer side of the connecting sleeve 2, and a second supporting edge 5 is disposed on the inner side of the connecting sleeve 2.
The outer side of the membrane cassette seat 1 is provided with a plurality of mounting holes 6 along the circumferential direction.
First support is provided with welding liquid holding tank 7 along the bottom of 4, and welding liquid holding tank 7 is along the even many places that are provided with of circumference, and like this when adapter sleeve 2 and valve body welding, during partial welding liquid flowed into welding liquid holding tank 7, the further connectivity of reinforcing adapter sleeve 2 and valve body improves joint strength.
The welding liquid holding tank 7 is an arc-shaped tank or a square tank.
As shown in fig. 7, a differential pressure control valve comprises the above-mentioned connecting piece for a differential pressure control valve, which comprises a valve body 8, a first connecting pipe 9 and a second connecting pipe 10 are respectively arranged at two sides of the valve body 8, a valve seat 11 is fixedly arranged in the valve body 8, the first connecting pipe 9 extends into the valve body 8 and is connected with the valve seat 11, a round hole is arranged at the top of the valve body 8, the bottom of the connecting sleeve 2 is fixed in the round hole, a diaphragm cover 12 is connected at the top of the diaphragm cover 1 through a screw, a diaphragm 13 is arranged between the diaphragm cover 12 and the diaphragm cover 1, a valve core 14 is movably arranged in the diaphragm cover 1 and the connecting sleeve 2 up and down, the top of the valve core 14 is connected with a lower diaphragm 16 and the diaphragm 13 through an upper diaphragm 15, a guide sleeve 17 is arranged in the connecting sleeve 2, the guide sleeve 17 plays a role of vertically guiding the valve core 14, the bottom of the guide sleeve 17 is abutted against a second support edge 4, the bottom of the valve core 14 is provided with an upper conical valve flap 19 and a lower conical valve flap 20, the valve seat 11 is provided with an upper valve port 21 and a lower valve port 22 by matching the upper conical valve flap 19 and the lower conical valve flap 20, and the second connecting pipe 10 is connected with the top of the bellows cover 12 through a pressure guide pipe 23.
In the installation, the utility model discloses a 2 top-down of adapter sleeve insert to this round hole in, until first support along 4 bottom and the contact of valve body 8, first support is along 4 plays spacing effect, then to first support carry out the seal weld of border along 4 and the junction of valve body 8, at the welded in-process, part welding liquid flows in to welding liquid holding tank 7 in, can strengthen the connectivity, improve structural strength, and set up bellows seat 1 and adapter sleeve 2 into integrated into one piece's structure, removed from and be used for the numerous loaded down with trivial details processes of being connected between the two, not only improved the intensity and the leakproofness of this connecting piece itself, and simplified the manufacturing procedure, great improvement work efficiency.
The working principle of the differential pressure balance valve is as follows: the diaphragm 13 divides the cavity enclosed by the diaphragm box cover 12 and the diaphragm box base 1 into an upper diaphragm cavity and a lower diaphragm cavity, the pressure in the first connecting pipe 9 is introduced into the upper diaphragm cavity through the pressure guiding pipe 23, if the pressure in the upper diaphragm cavity is greater than the control pressure of the spring 18, the diaphragm 13 drives the valve core 14 to move downwards, the upper conical valve flap 19 and the lower conical valve flap 20 are respectively close to the upper valve port 21 and the lower valve port 22, so that the passing area of the valve ports is reduced, namely the action of closing the valve ports is realized, when the pressure in the upper diaphragm cavity is less than the control pressure of the spring 18, the diaphragm 13 drives the valve core 14 to move upwards, the upper conical valve flap 19 and the lower conical valve flap 20 are respectively far away from the upper valve port 21 and the lower valve port 22, so that the passing area of the valve ports is.
In addition, the top of the capsule cover 12 is also connected with a pressure regulating pipe 24, the pressure regulating pipe 24 is provided with a valve 25, and pressure gas can be introduced into the upper cavity of the capsule through the pressure regulating pipe 24 to realize active control of pressure.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. A coupling for a differential pressure control valve, characterized by: including integrated into one piece's bellows seat and adapter sleeve, be provided with the activity chamber that can supply the diaphragm activity in the bellows seat, the outside middle part of adapter sleeve is provided with first support edge, the inboard of adapter sleeve is provided with the second and holds in the palm the edge.
2. A coupling for a differential pressure control valve as defined in claim 1, wherein: and a plurality of mounting holes are formed in the outer side of the membrane box seat along the circumferential direction.
3. A coupling for a differential pressure control valve as defined in claim 1, wherein: the bottom on first support edge is provided with the welding liquid holding tank.
4. A coupling for a differential pressure control valve as defined in claim 3, wherein: the welding liquid holding tank is provided with a plurality of places along circumference is even.
5. A coupling for a differential pressure control valve as defined in claim 3, wherein: the welding liquid holding tank is an arc-shaped tank.
6. A coupling for a differential pressure control valve as defined in claim 3, wherein: the welding liquid holding tank is a square tank.
7. A differential pressure control valve characterized by: a connector for a differential pressure control valve comprising any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285366.2U CN210266058U (en) | 2019-08-09 | 2019-08-09 | Connecting piece for differential pressure control valve and differential pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285366.2U CN210266058U (en) | 2019-08-09 | 2019-08-09 | Connecting piece for differential pressure control valve and differential pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210266058U true CN210266058U (en) | 2020-04-07 |
Family
ID=70016839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921285366.2U Active CN210266058U (en) | 2019-08-09 | 2019-08-09 | Connecting piece for differential pressure control valve and differential pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210266058U (en) |
-
2019
- 2019-08-09 CN CN201921285366.2U patent/CN210266058U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connector for differential pressure control valve and differential pressure control valve Granted publication date: 20200407 Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch Pledgor: HEBEI TONGLI AUTOMATIC CONTROL VALVE MANUFACTURING Co.,Ltd. Registration number: Y2024980005901 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |