CN216306824U - One-way back pressure valve structure - Google Patents
One-way back pressure valve structure Download PDFInfo
- Publication number
- CN216306824U CN216306824U CN202122164451.7U CN202122164451U CN216306824U CN 216306824 U CN216306824 U CN 216306824U CN 202122164451 U CN202122164451 U CN 202122164451U CN 216306824 U CN216306824 U CN 216306824U
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- shell
- valve rod
- valve
- hole
- seat body
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of control valves, in particular to a one-way back pressure valve structure which is simple and compact in structure and low in use cost and comprises a shell with two open ends, wherein one end of the shell is provided with an inlet, the other end of the shell is provided with an outlet, a movable valve core is arranged in the shell, the valve core comprises a valve rod and a top block arranged at one end of the valve rod, a fixed seat is arranged at the opening of the shell and comprises an upper seat body and a lower seat body which are integrally formed, a first through hole communicated with the inlet is formed in the upper seat body, the shape of one end, facing the valve core, of the first through hole is corresponding to the shape of the top block, a circle of second through holes are formed in the lower seat body, the first through hole is communicated with the second through hole through the movement of the top block penetrating through the lower seat body, a valve rod mounting seat is fixed at the outlet of the shell, a third through hole communicated with the outlet of the shell is formed in the valve rod mounting seat, the valve rod passes through the valve rod mounting seat, and a spring is arranged between the top tip block and the valve rod mounting seat.
Description
Technical Field
The utility model relates to the technical field of control valves, in particular to a one-way back pressure valve structure.
Background
The back pressure valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, when the pressure exceeds the force for opening and closing the valve core, the valve core is jacked open to allow gas or liquid to flow through, the guiding and opening force of the valve core is an important part, and in order to ensure the normal use of the back pressure valve, a relatively complex guiding and resetting mechanism is generally arranged, so that the whole back pressure valve is complex in structure and high in use cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of complex structure and high use cost of the existing back pressure valve, the utility model provides a one-way back pressure valve which is simple and compact in structure and low in use cost.
The technical scheme is as follows: a one-way back pressure valve structure comprises a shell with openings at two ends, wherein one end of the shell is provided with an inlet, the other end of the shell is provided with an outlet, and a movable valve core is arranged in the shell and is characterized in that the valve core comprises a valve rod and a tip block arranged at one end of the valve rod, a fixed seat is arranged at the opening of the shell and comprises an upper seat body and a lower seat body which are integrally formed, a first through hole communicated with the inlet is formed in the upper seat body, the shape of one end, facing the valve core, of the first through hole is consistent with the shape of the tip block, a circle of second through holes are formed in the lower seat body, the first through hole is communicated with the second through hole through the movement of the tip block penetrating through the lower seat body, a valve rod mounting seat is fixed at the outlet of the shell, and a third through hole communicated with the outlet of the shell is formed in the valve rod mounting seat, the valve rod penetrates through the valve rod mounting seat, and a spring is arranged between the top tip block and the valve rod mounting seat.
The device is further characterized in that one end of the fixed seat props against the inner wall of the shell, and the other end of the fixed seat is clamped and fixed through a clamp spring;
the valve rod mounting seat is provided with a shaft sleeve, the valve rod is a rod with different diameters, the small-diameter section of the valve rod is inserted into the shaft sleeve, and the large-diameter section of the valve rod is connected with the top block.
After the valve is adopted, the center block props against the first through hole through the elastic force of the spring to close the valve, when the pressure applied to the end face of the center block is larger than the elastic force of the spring, the center block is jacked open to enable the inlet and the outlet of the shell to be communicated, the valve is opened, and the valve is guided and reset into an integral structure, so that the valve is simple and compact in structure and low in use cost.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
As shown in figure 1, the one-way back pressure valve structure comprises a shell 1 with two open ends, an inlet 2 is arranged at one open end of the shell 1, an outlet 3 is arranged at the other open end of the shell, a movable valve core is arranged in the shell 1, the valve core comprises a valve rod 4 and a tip block 5 arranged at one end of the valve rod 4, a fixed seat is arranged at the open end of the shell 1, the fixed seat comprises an upper seat body 6 and a lower seat body 7 which are integrally formed, the upper seat body 6 is connected into a whole through a middle ring attached to the inner wall of the shell 1, a first through hole 8 communicated with the inlet 2 is arranged on the upper seat body 6, the shape of one end of the first through hole 8 facing the valve core is corresponding to the shape of the tip block 5, a circle of second through holes 9 are arranged on the lower seat body 7, the first through hole 8 is communicated with and blocked by the movement of the tip block 5 penetrating through the lower seat body 7, a valve rod installation seat 10 is fixed at the outlet of the shell 1, a third through hole 11 communicated with the outlet of the shell 1 is arranged on the valve rod installation seat 10, the valve rod 4 penetrates through the valve rod mounting seat 10, and a spring 14 is arranged between the tip block 5 and the valve rod mounting seat 10. Specifically, install axle sleeve 12 on the valve rod mount pad 10, valve rod 4 is the unequal diameter pole, and axle sleeve 12 is inserted in the path section of valve rod 4, and apex piece 5 is connected in the path section of the big diameter of valve rod 4.
One end of the fixing seat props against the inner wall of the shell 1, and the other end of the fixing seat is clamped and fixed through the clamp spring 13.
The working principle is as follows: in the initial state, the center block 5 is propped against the first through hole 8 under the action of the elastic force of the spring 14 to realize sealing, and the valve is in a closed state at the moment; when gas or liquid flows in from the inlet 2 of the shell 1 and the pressure of the end face of the center block 5 is larger than the elastic force of the spring 14, the center block 5 is pushed open, the gas or the liquid enters along the gap between the center block 5 and the inner wall of the first through hole 8 and then flows out from the outlet 3 of the shell 1 after passing through the second through hole 9, the inside of the shell 1 and the third through hole 11, so that the valve is conducted, and when the pressure is smaller than the elastic force of the spring 14, the center block 5 is pushed by the spring to reset.
Claims (3)
1. A one-way back pressure valve structure comprises a shell with openings at two ends, wherein one end of the shell is provided with an inlet, the other end of the shell is provided with an outlet, and a movable valve core is arranged in the shell and is characterized in that the valve core comprises a valve rod and a tip block arranged at one end of the valve rod, a fixed seat is arranged at the opening of the shell and comprises an upper seat body and a lower seat body which are integrally formed, a first through hole communicated with the inlet is formed in the upper seat body, the shape of one end, facing the valve core, of the first through hole is consistent with the shape of the tip block, a circle of second through holes are formed in the lower seat body, the first through hole is communicated with the second through hole through the movement of the tip block penetrating through the lower seat body, a valve rod mounting seat is fixed at the outlet of the shell, and a third through hole communicated with the outlet of the shell is formed in the valve rod mounting seat, the valve rod penetrates through the valve rod mounting seat, and a spring is arranged between the top tip block and the valve rod mounting seat.
2. The structure of claim 1, wherein one end of the fixing seat is abutted against the inner wall of the shell, and the other end of the fixing seat is clamped and fixed by a clamp spring.
3. A one-way back pressure valve structure as claimed in claim 1, wherein a shaft sleeve is mounted on the valve rod mounting seat, the valve rod is a rod with different diameters, the small diameter section of the valve rod is inserted into the shaft sleeve, and the large diameter section of the valve rod is connected with the top tip block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164451.7U CN216306824U (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164451.7U CN216306824U (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306824U true CN216306824U (en) | 2022-04-15 |
Family
ID=81088152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122164451.7U Active CN216306824U (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306824U (en) |
-
2021
- 2021-09-08 CN CN202122164451.7U patent/CN216306824U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214000 No.20 Chunzhu West Road, Xishan Economic Development Zone, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Liqi Intelligent Equipment Co.,Ltd. Country or region after: China Address before: 214000 No.20 Chunzhu West Road, Xishan Economic Development Zone, Xishan District, Wuxi City, Jiangsu Province Patentee before: WUXI RICH INTELLIGENT EQUIPMENT Co.,Ltd. Country or region before: China |