CN211315252U - Adjustable back pressure valve - Google Patents
Adjustable back pressure valve Download PDFInfo
- Publication number
- CN211315252U CN211315252U CN201922064186.8U CN201922064186U CN211315252U CN 211315252 U CN211315252 U CN 211315252U CN 201922064186 U CN201922064186 U CN 201922064186U CN 211315252 U CN211315252 U CN 211315252U
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- CN
- China
- Prior art keywords
- back pressure
- pressure valve
- water inlet
- valve body
- spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an adjustable back pressure valve, including back pressure valve body, water inlet and case, back pressure valve body left end is equipped with the water inlet, and the water inlet right-hand member is connected with the inlet channel, and the inlet channel right side is connected with drainage pipe, and the drainage pipe right-hand member is connected with the discharge port, this internal middle part of back pressure valve is equipped with the case, the case middle part is hollow setting, and the case is located the inlet channel upper right end, the case upper end is equipped with the fixed plate, this internal corresponding fixed plate of back pressure valve is equipped with the sealing washer, and the fixed plate upper end is equipped with adjusting spring. The utility model discloses during the use, rotate and change the drive threaded rod and rotate on the valve gap, drive cassette and spring holder decline, spring holder extrusion regulating spring, the backpressure value of being convenient for adjust the back pressure valve body adjusts, is convenient for reduce the frictional force between threaded rod and the cassette through the ball that sets up, and the manpower has been practiced thrift in person's rotation of facilitating the use.
Description
Technical Field
The utility model relates to a governing valve technical field specifically is an adjustable back pressure valve.
Background
A back pressure valve, which means that a certain pressure is built up due to the function of the valve, the pressure can generally be regulated. Can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal, radioactive media and the like. The opening and closing piece is a disc-shaped valve plate and rotates around the axis of the opening and closing piece in the valve body, so that the opening and closing or adjusting purpose is achieved. The pipe mainly plays a role in cutting off and throttling. The most common systems include a fluid metering and feeding system, a hydraulic control system, chemical reaction conditions, physical critical state control and the like. Basically, the device can be divided into a regulating part and an overflowing part. The back pressure valve is operated by the elastic force of the built-in spring: when the system pressure is lower than the set pressure, the diaphragm blocks the pipeline under the action of the elastic force of the spring; when the pressure of the system is higher than the set pressure, the diaphragm compresses the spring, the pipeline is connected, and the liquid passes through the backpressure valve. The back pressure valve is similar to the one-way valve but the opening pressure is higher than the one-way valve and is between 0.2 and 1.6 MPa.
When the existing back pressure valve is adjusted, workers often adjust the inner adjusting spring through rotating the rotating handle, and the friction force between the inner gland and the adjusting spring is large, so that the rotation is difficult. Accordingly, those skilled in the art have provided an adjustable back pressure valve to solve the problems set forth in the background art as described above.
Disclosure of Invention
An object of the utility model is to provide an adjustable back pressure valve to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an adjustable back pressure valve comprises a back pressure valve body, a water inlet and a valve core, wherein the left end of the back pressure valve body is provided with the water inlet, the right end of the water inlet is connected with a water inlet pipeline, the right side of the water inlet pipeline is connected with a drainage pipeline, the right end of the drainage pipeline is connected with a discharge port, the middle part of the back pressure valve body is provided with the valve core, the middle part of the valve core is hollow, the valve core is positioned at the upper right end of the water inlet pipeline, the upper end of the valve core is provided with a fixed plate, the back pressure valve body is internally provided with a sealing ring corresponding to the fixed plate, the upper end of the fixed plate is provided with an adjusting spring, the upper end of the adjusting spring is provided with a spring seat, a clamping seat is arranged at the upper end of the spring seat, the outer sides of the adjusting spring and the spring seat are provided with valve covers, threaded holes are formed in the valve covers corresponding to the threaded rods, liquid enters the back pressure valve body from the water inlet and the water inlet pipeline, when the hydraulic pressure in the water inlet pipeline is higher than the weight of the valve core and the weight of the fixed plate, and the liquid and the adjusting spring abut against the pressure of the fixed plate and the valve core, the liquid in the water inlet pipeline can upwards jack the valve core and is discharged through the drainage pipeline and the discharge port, and if the hydraulic pressure is lower than the weight and the pressure, the liquid does not flow.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses during the use, rotate and change the drive threaded rod and rotate on the valve gap, drive cassette and spring holder decline, spring holder extrusion regulating spring, the backpressure value of being convenient for adjust the back pressure valve body adjusts, is convenient for reduce the frictional force between threaded rod and the cassette through the ball that sets up, and the manpower has been practiced thrift in person's rotation of facilitating the use.
2. The utility model discloses during the use, be hollow setting through the case middle part, practiced thrift the cost of back pressure valve body.
Drawings
Fig. 1 is a schematic structural view of an adjustable back pressure valve.
Fig. 2 is a schematic structural diagram of a clamping seat in an adjustable back pressure valve.
Fig. 3 is a schematic bottom view of a valve element of an adjustable back pressure valve.
In the figure: 1. a back pressure valve body; 2. a water inlet; 3. a water inlet pipe; 4. a water discharge pipeline; 5. an outlet port; 6. a valve core; 7. a fixing plate; 8. a seal ring; 9. adjusting the spring; 10. a spring seat; 11. a card holder; 12. a threaded rod; 13. a ball bearing; 14. a limiting block; 15. turning a handle; 16. and a valve cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in the embodiment of the present invention, an adjustable back pressure valve comprises a back pressure valve body 1, a water inlet 2 and a valve core 6, wherein the left end of the back pressure valve body 1 is provided with the water inlet 2, the right end of the water inlet 2 is connected with a water inlet pipe 3, the right end of the water inlet pipe 3 is connected with a water discharge pipe 4, the right end of the water discharge pipe 4 is connected with a discharge port 5, the valve core 6 is arranged at the middle part of the back pressure valve body 1, the middle part of the valve core 6 is arranged in a hollow manner, the valve core 6 is positioned at the upper right end of the water inlet pipe 3, the upper end of the valve core 6 is provided with a fixed plate 7, a seal ring 8 is arranged in the back pressure valve body 1 corresponding to the fixed plate 7, the upper end of the fixed plate 7 is provided with an adjusting spring 9, and threaded rod 12 sliding connection cassette 11, both ends correspond cassette 11 and are equipped with stopper 14 about threaded rod 12, threaded rod 12 upper end is equipped with changes 15, change and be equipped with anti-skidding line on 15, the regulating spring 9 and the spring holder 10 outside are equipped with valve gap 16, and valve gap 16 corresponds threaded rod 12 and is equipped with the screw hole.
The utility model discloses a theory of operation is: when the utility model is used, liquid enters the back pressure valve body 1 from the water inlet 2 and the water inlet pipeline 3, when the hydraulic pressure in the water inlet pipeline 3 is higher than the weight of the valve core 6 and the fixed plate 7 and the pressure of the regulating spring 9 against the fixed plate 7 and the valve core 6, the liquid in the water inlet pipe 3 will push the valve core 6 upwards and be discharged through the water discharge pipe 4 and the discharge port 5, if the hydraulic pressure is lower than the above weight and pressure, when liquid does not flow out, the rotating handle 15 is rotated to drive the threaded rod 12 to rotate on the valve cover 16, the clamping seat 11 and the spring seat 10 are driven to descend, the spring seat 10 extrudes the adjusting spring 9, the back pressure value of the back pressure valve body 1 is conveniently adjusted to be adjusted, the friction between the threaded rod 12 and the clamping seat 11 is reduced conveniently through the arranged ball 13, the labor is saved when a user rotates the valve, and the cost of the back pressure valve body 1 is saved when the middle of the valve core 6 is arranged in a hollow mode.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. An adjustable back pressure valve comprises a back pressure valve body (1), a water inlet (2) and a valve core (6), and is characterized in that the water inlet (2) is arranged at the left end of the back pressure valve body (1), the water inlet (2) is connected with a water inlet pipeline (3), the right side of the water inlet pipeline (3) is connected with a water drainage pipeline (4), the right end of the water drainage pipeline (4) is connected with a discharge port (5), the valve core (6) is arranged at the middle part in the back pressure valve body (1), the valve core (6) is positioned at the upper right end of the water inlet pipeline (3), a fixing plate (7) is arranged at the upper end of the valve core (6), an adjusting spring (9) is arranged at the upper end of the fixing plate (7), a spring seat (10) is arranged at the upper end of the adjusting spring (9), a clamping seat (11) is arranged at the upper end of, and the threaded rod (12) is connected with the clamping seat (11) in a sliding manner, and the valve cover (16) is arranged on the outer sides of the adjusting spring (9) and the spring seat (10).
2. The adjustable back pressure valve according to claim 1, wherein the valve core (6) is hollow in the middle.
3. The adjustable back pressure valve according to claim 1, wherein a sealing ring (8) is arranged in the back pressure valve body (1) corresponding to the fixing plate (7).
4. The adjustable back pressure valve according to claim 1, wherein the left end and the right end of the threaded rod (12) are provided with limit blocks (14) corresponding to the clamping seats (11).
5. The adjustable back pressure valve according to claim 1, wherein a rotating handle (15) is arranged at the upper end of the threaded rod (12), and anti-skid grains are arranged on the rotating handle (15).
6. Adjustable back pressure valve according to claim 1, characterized in that the valve cover (16) is provided with a threaded hole in correspondence of the threaded rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922064186.8U CN211315252U (en) | 2019-11-26 | 2019-11-26 | Adjustable back pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922064186.8U CN211315252U (en) | 2019-11-26 | 2019-11-26 | Adjustable back pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315252U true CN211315252U (en) | 2020-08-21 |
Family
ID=72055515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922064186.8U Expired - Fee Related CN211315252U (en) | 2019-11-26 | 2019-11-26 | Adjustable back pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211315252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780940A (en) * | 2024-02-26 | 2024-03-29 | 江苏乐科节能科技股份有限公司 | Pressure regulating valve capable of regulating back pressure |
-
2019
- 2019-11-26 CN CN201922064186.8U patent/CN211315252U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780940A (en) * | 2024-02-26 | 2024-03-29 | 江苏乐科节能科技股份有限公司 | Pressure regulating valve capable of regulating back pressure |
| CN117780940B (en) * | 2024-02-26 | 2024-05-10 | 江苏乐科节能科技股份有限公司 | Pressure regulating valve capable of regulating back pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20211126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |