CN215806337U - Flow-regulating pressure-regulating valve - Google Patents
Flow-regulating pressure-regulating valve Download PDFInfo
- Publication number
- CN215806337U CN215806337U CN202122461050.8U CN202122461050U CN215806337U CN 215806337 U CN215806337 U CN 215806337U CN 202122461050 U CN202122461050 U CN 202122461050U CN 215806337 U CN215806337 U CN 215806337U
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- sealing ring
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Abstract
The utility model discloses a flow regulating and pressure regulating valve and aims to solve the problems that the flow regulating and pressure regulating valve in the prior art is unstable in operation and poor in sealing performance. The valve comprises a valve body, a liquid inlet and a liquid outlet are respectively arranged at two ends of the valve body; the guide cylinder is fixedly arranged in the valve body; the piston is arranged in the guide cylinder and can slide along the cylinder wall of the guide cylinder; a crank connecting rod mechanism is arranged in the guide cylinder, one end of the crank connecting rod mechanism is connected with the piston, and the other end of the crank connecting rod mechanism is connected with the valve rod; the guide cover is connected to one side of the piston, which is close to the liquid outlet, and guide grooves are uniformly arranged in the circumferential direction of the guide cover; the valve seat is arranged on one side of the liquid outlet, and a guide block matched with the guide groove is arranged on the circumferential inner wall of the valve seat; when the air guide cover moves along the axis direction of the valve seat, the stability of the flow regulating valve is improved through the matching of the guide groove and the guide block.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a flow-regulating pressure-regulating valve.
Background
The valve is a device used for controlling the direction, pressure and flow of fluid in a fluid system; the good valve is a device which can control the flow of a medium (liquid, gas, powder) in a pipe or equipment while the medium flows or stops; the valve is a control part in a pipeline fluid conveying system, and can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products and the like; the valve used for fluid control, from the simplest stop valve to various valves used in extremely complicated automatic control systems, has various varieties and specifications, and in the flow regulating valve, the piston type flow regulating pressure regulating valve is commonly used to change the area of a throttling hole on a sleeve through the movement of a piston, thereby realizing the functions of regulating flow, regulating pressure and eliminating cavitation under high pressure difference.
In the flow regulating and pressure regulating valve in the prior art, the pressure in the valve body needs to be regulated, so the flow regulating and pressure regulating valve needs to be opened or closed frequently through the movement of the piston, and the flow limiting cover arranged on the piston is only connected with the piston at the first end, so that the flow limiting cover is arranged on the piston to form a cantilever beam structure, the deformation of the flow limiting cover is easily caused under the long-time use, the service life of the flow limiting cover is reduced, and the operation of the flow regulating and pressure regulating valve is unstable; and when the flow regulating pressure regulating valve in the prior art is closed, the sealing performance of the flow regulating pressure regulating valve is poor, and particularly, the sealing performance is difficult to ensure when the flow regulating pressure regulating valve faces high-pressure medium fluid.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a flow regulating and pressure regulating valve, and aims to solve the problems that the flow regulating and pressure regulating valve in the prior art is unstable in operation and poor in sealing performance.
In order to achieve the above object, the present invention provides a flow-regulating pressure-regulating valve comprising:
the middle of the valve body is communicated, and a liquid inlet and a liquid outlet are respectively arranged at two communicated ends of the valve body;
the guide cylinder is fixedly arranged in the valve body and used for enabling the medium to pass through the outer peripheral wall of the guide cylinder when the medium enters from the liquid inlet;
the piston is arranged in the guide cylinder and can slide along the cylinder wall of the guide cylinder; a crank connecting rod mechanism is arranged in the guide cylinder, one end of the crank connecting rod mechanism is connected with the piston, and the other end of the crank connecting rod mechanism is connected with the valve rod;
the guide cover is connected to one side, close to the liquid outlet, of the piston, and guide grooves are uniformly formed in the circumferential direction of the guide cover;
the valve seat is arranged on one side of the liquid outlet, and a guide block matched with the guide groove is arranged on the circumferential inner wall of the valve seat;
when the crank connecting rod mechanism drives the piston to move, the piston drives the air guide cover to move along the axis direction of the valve seat, and when the air guide cover completely extends out of the valve body, the piston is matched and sealed with the valve seat.
Furthermore, the kuppe include with the mount table that the piston is connected, the circumferencial direction evenly distributed of mount table has the gib block, forms between the adjacent gib block the guide way, be provided with the beaded finish on the inner wall of gib block.
Further, the valve seat and the mounting surface of the valve body are stepped surfaces, the piston is provided with a mounting surface matched with the stepped surfaces, and when the flow regulating pressure regulating valve is closed, the mounting surface is matched and sealed with the stepped surfaces.
Further, a sealing ring is arranged on the inner wall of the liquid outlet of the valve body.
Furthermore, an annular groove is formed in the circumference of one end, close to the liquid outlet, of the piston, a first sealing ring and a second sealing ring are arranged in the annular groove, the inner ring surface of the first sealing ring is arranged to be an inclined surface, a convex ring is arranged on one side, close to the liquid outlet, of the second sealing ring, and an inclined surface matched with the inclined surface is arranged on the outer circumferential surface of the convex ring; the inclined plane of the first sealing ring is abutted against the inclined plane of the convex ring.
Furthermore, one end of the annular groove, which is far away from the liquid outlet, is provided with a butt joint table, and one side of the second sealing ring, which is far away from the liquid outlet, is in butt joint with the butt joint table.
In summary, the utility model has the following advantages: (1) the guide groove is matched with the guide block, so that the flow regulating and pressure regulating valve can stably operate, and the service life of the flow regulating and pressure regulating valve is prolonged; (2) the sealing performance is good, the sealing device is suitable for being used under a pressure medium which needs to be controlled greatly, and the practicability is high.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a block diagram of the pod of the present invention;
FIG. 5 is a block diagram of the valve seat and pod engagement of the present invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1 to 5, in an embodiment of the present invention, a flow regulating pressure regulating valve includes:
the valve body 100 is communicated with the middle of the valve body 100, and the two communicated ends of the valve body 100 are a liquid inlet 110 and a liquid outlet 120 respectively;
the guide cylinder 200 is fixedly arranged in the valve body 100, and an annular guide channel is formed between the outer wall of the guide cylinder 200 and the inner wall of the valve body 100, so that when a medium enters from the liquid inlet 110, the medium can pass through the guide channel formed between the outer peripheral wall of the guide cylinder 200 and the inner wall of the valve body 100;
the piston 300 is arranged in the guide shell 200 and can slide along the wall of the guide shell 200; a crank connecting rod mechanism 310 is arranged in the guide shell 200, one end of the crank connecting rod mechanism 310 is connected with the piston 300, and the other end of the crank connecting rod mechanism 310 is connected with the valve rod 311; the crank-link mechanism 310 includes a first crank 312 and a first link 313, the valve rod 311 is clamped in the first crank 312, two ends of the first link 313 are respectively rotatably connected to one end of the first crank 312 and one end of the first link 313, and the other end of the first link 313 is rotatably connected to the piston 300.
The guide cover 400 is fixedly connected to one side, close to the liquid outlet 120, of the piston 300 through bolts, and guide grooves 430 are uniformly formed in the circumferential direction of the guide cover 400;
the valve seat 500 is fixedly arranged at one side of the liquid outlet 120 through bolts, and a guide block 510 matched with the guide groove 430 is arranged on the circumferential inner wall of the valve seat 500;
when the crank-link mechanism 310 drives the piston 300 to move, the piston 300 drives the pod 400 to move along the axial direction of the valve seat 500, and when the pod 400 completely extends out of the valve body 100, the piston 300 and the valve seat 500 are matched and sealed.
In the prior art, the air guide sleeve 400 is directly connected with the piston through a bolt, the movement of the air guide sleeve 400 is directly driven through the movement of the piston 300, and one side of the air guide sleeve 400 is connected with the piston 300, so that when the flow regulating pressure valve is opened, the air guide sleeve 400 generates larger vibration due to the impact of a medium on the air guide sleeve 400, and the integral stability of the flow regulating pressure valve is further influenced; according to the utility model, the guide groove 430 is arranged in the outer circumferential direction of the air guide sleeve 400, the guide block 510 is arranged on the circumferential inner wall of the valve seat 500, the air guide sleeve 400 can slide along the inner wall of the valve seat 500 through the matching of the guide groove 430 and the guide block 510, and the air guide sleeve 400 can be abutted to the air guide sleeve 400 in the circumferential direction of the valve seat 500, so that the stability of the air guide sleeve 400 can be kept when the air guide sleeve 400 is impacted by a medium, and the stability of the flow regulating pressure regulating valve is further improved.
The air guide sleeve 400 comprises an installation platform 410 connected with the piston 300, guide strips 420 are uniformly distributed in the circumferential direction of the installation platform 410, a guide groove 430 is formed between every two adjacent guide strips 420, and a reinforcing ring 440 is arranged on the inner wall of each guide strip 420.
The installation of the dome 400 is more convenient by the installation of the installation table 410, and when the medium passes through the guide grooves 430 between the guide strips 420, the guide strips 420 can reduce the water hammer effect generated by the opening of the flow regulating pressure regulating valve, thereby improving the stability of the present invention.
The installation surfaces of the valve seat 500 and the valve body 100 are stepped surfaces 520, the piston 300 is provided with an installation surface 320 matched with the stepped surfaces 520, and when the flow regulating pressure regulating valve is closed, the installation surface 320 is matched with the stepped surfaces 520 to form a hard sealing structure.
The stepped surface 520 is engaged with the mounting surface 320, so that the accuracy of engagement between the piston 300 and the pod 400 can be improved, and the sealing performance when the flow regulating valve is closed can be improved.
A sealing ring 130 is disposed on an inner wall of the liquid outlet 120 of the valve body 100, and the sealing ring 130 is made of a rubber material.
When the flow regulating pressure regulating valve is closed, a soft seal is formed between the sealing ring 130 and the outer wall of the piston 300, so that the sealing performance of the flow regulating pressure regulating valve is improved.
In one embodiment, an annular groove 330 is formed on the circumference of one end of the piston 300 close to the liquid outlet 120, a first sealing ring 340 and a second sealing ring 350 are arranged in the annular groove 330, the inner annular surface of the first sealing ring 340 is provided with an inclined surface 341, the inclined surface 341 inclines towards the end far away from the liquid outlet 120, a convex ring 351 is arranged on one side of the second sealing ring 350 close to the liquid outlet 120, an inclined surface 352 matched with the inclined surface 341 is arranged on the outer circumferential surface of the convex ring 351, and the inclined surface 352 inclines towards the end close to the liquid outlet 120; the inclined surface 341 of the first seal ring 340 abuts on the inclined surface 352 of the convex ring 351; when the piston 300 is sealed in contact with the valve seat 500, the first sealing ring 340 and the second sealing ring 350 abut against the inner wall of the valve body 100 at the liquid outlet 120 to form a sealing structure.
In order to further improve the sealing performance when the flow regulating valve is closed, a first sealing ring 340 and a second sealing ring 350 are arranged in the annular groove 330, because an inclined surface 341 is arranged on the inner annular surface of the first sealing ring 340, and an inclined surface 352 matched with the inclined surface 341 is arranged on the outer circumferential surface of a convex ring 351 on the second sealing ring 350, when the flow regulating valve is closed, the sealing performance of the flow regulating valve is improved because the first sealing ring 340 and the second sealing ring 350 are in contact with the inner wall of the liquid outlet 120 of the valve body 100 to form a seal, and simultaneously, after the flow regulating valve is closed, the medium can have a pushing force effect on the second sealing ring 350 through the pressure of the medium, so that the second sealing ring 350 can push the first sealing ring 350 through the matching of the inclined surface 341 and the inclined surface 352, and the first sealing ring 350 can move towards the outer diameter direction of the piston 330, the first sealing ring 350 can be tightly attached to the inner wall of the liquid outlet 120 of the flow regulating and pressure regulating valve, the sealing effect of the flow regulating and pressure regulating valve is further ensured, and the sealing performance of the flow regulating and pressure regulating valve is better when the pressure of a medium is higher.
The end of the annular groove 330 far away from the liquid outlet 120 is provided with a butting table 360, and one side of the second sealing ring 350 far away from the liquid outlet 120 is butted against the butting table 360.
The abutting table 360 is arranged, so that a structure formed between the first sealing ring 340 and the second sealing ring 350 is more stable, an annular space is formed between the second sealing ring 350 and the annular groove 330 due to the abutting table 360, and the annular space can be closed quickly and labor-saving due to the fact that the medium has an impact force on the annular space when the piston 300 is closed; and the force of the medium applied to the annular space when the flow-regulating pressure-regulating valve is closed can further improve the sealing performance between the piston 300 and the valve seat 500.
When the guide cylinder is used, the valve rod 311 is rotated to drive the first crank 312 to rotate, the first crank 312 is rotated to drive the first connecting rod 313 to move, and the first connecting rod 313 drives the piston 300 to move on the guide cylinder 200; when the valve rod 311 rotates to enable the piston 300 to move, so that the flow regulating and pressure regulating valve is opened, the piston 300 is more stably opened due to the matching of the guide groove 430 and the guide block 510, and when a medium passes through the guide cover 400, the water hammer effect caused by the medium can be reduced, and when the medium passes through the guide cover 400, the stability of the guide cover 400 is improved due to the abutting action of the valve seat 500 on the guide cover 400 and the abutting action of the guide block 510 on the guide groove 430, so that the stability of the utility model is greatly improved; when the valve rod 311 moves to drive the piston 300 to move, the annular space in the annular groove 330 enables the piston 300 to be closed more conveniently and quickly, so that the operation performance of the utility model is improved, meanwhile, due to the sealing effect of the sealing ring 130 and the effects of the first sealing ring 340 and the second sealing ring 350, the sealing performance of the flow regulating pressure regulating valve when closed is ensured, and meanwhile, when the flow regulating pressure regulating valve is closed, the first sealing ring 340 and the second sealing ring 350 are matched, so that the sealing performance between the piston 300 and the inner wall of the liquid outlet 120 can be further improved by using the pressure of a medium.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A flow-regulating pressure-regulating valve, comprising:
the middle of the valve body is communicated, and a liquid inlet and a liquid outlet are respectively arranged at two communicated ends of the valve body;
the guide cylinder is fixedly arranged in the valve body and used for enabling the medium to pass through the outer peripheral wall of the guide cylinder when the medium enters from the liquid inlet;
the piston is arranged in the guide cylinder and can slide along the cylinder wall of the guide cylinder; a crank connecting rod mechanism is arranged in the guide cylinder, one end of the crank connecting rod mechanism is connected with the piston, and the other end of the crank connecting rod mechanism is connected with the valve rod;
the guide cover is connected to one side, close to the liquid outlet, of the piston, and guide grooves are uniformly formed in the circumferential direction of the guide cover;
the valve seat is arranged on one side of the liquid outlet, and a guide block matched with the guide groove is arranged on the circumferential inner wall of the valve seat;
when the crank connecting rod mechanism drives the piston to move, the piston drives the air guide cover to move along the axis direction of the valve seat, and when the air guide cover completely extends out of the valve body, the piston is matched and sealed with the valve seat.
2. The flow-regulating pressure-regulating valve according to claim 1, wherein said air guide sleeve comprises an installation table connected with said piston, guide strips are uniformly distributed in the circumferential direction of said installation table, said guide grooves are formed between adjacent guide strips, and a reinforcing ring is arranged on the inner wall of said guide strips.
3. The flow regulating pressure regulating valve according to claim 1, wherein said valve seat and said mounting surface of said valve body are stepped surfaces, and said piston is provided with a mounting surface cooperating with said stepped surfaces, said mounting surface cooperating with said stepped surfaces for sealing when said flow regulating pressure regulating valve is closed.
4. The flow regulating and pressure regulating valve according to claim 1, wherein a sealing ring is arranged on the inner wall of the liquid outlet of said valve body.
5. The flow-regulating pressure-regulating valve according to claim 1, characterized in that an annular groove is formed on the circumference of one end of said piston close to said liquid outlet, a first sealing ring and a second sealing ring are arranged in said annular groove, the inner ring surface of said first sealing ring is arranged as an inclined surface, a convex ring is arranged on one side of said second sealing ring close to said liquid outlet, and an inclined surface matched with said inclined surface is arranged on the outer circumference of said convex ring; the inclined plane of the first sealing ring is abutted against the inclined plane of the convex ring.
6. The flow and pressure regulating valve according to claim 5, wherein an abutting table is provided at an end of said annular groove far from said liquid outlet, and a side of said second sealing ring far from said liquid outlet abuts against said abutting table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122461050.8U CN215806337U (en) | 2021-10-12 | 2021-10-12 | Flow-regulating pressure-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122461050.8U CN215806337U (en) | 2021-10-12 | 2021-10-12 | Flow-regulating pressure-regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215806337U true CN215806337U (en) | 2022-02-11 |
Family
ID=80170558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122461050.8U Expired - Fee Related CN215806337U (en) | 2021-10-12 | 2021-10-12 | Flow-regulating pressure-regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215806337U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928412A (en) * | 2023-04-04 | 2023-10-24 | 兰州理工大学 | Differential pressure pilot fan blade deflection flow regulating and pressure stabilizing valve |
| CN118009045A (en) * | 2024-04-08 | 2024-05-10 | 山东嘉源复合材料有限公司 | Chemical engineering valve with branch diversion function |
-
2021
- 2021-10-12 CN CN202122461050.8U patent/CN215806337U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928412A (en) * | 2023-04-04 | 2023-10-24 | 兰州理工大学 | Differential pressure pilot fan blade deflection flow regulating and pressure stabilizing valve |
| CN116928412B (en) * | 2023-04-04 | 2024-01-23 | 兰州理工大学 | Differential pressure pilot fan blade deflection flow regulating and pressure stabilizing valve |
| CN118009045A (en) * | 2024-04-08 | 2024-05-10 | 山东嘉源复合材料有限公司 | Chemical engineering valve with branch diversion function |
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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: 20220211 |