CN219711922U - Low-resistance one-way valve - Google Patents
Low-resistance one-way valve Download PDFInfo
- Publication number
- CN219711922U CN219711922U CN202320226343.4U CN202320226343U CN219711922U CN 219711922 U CN219711922 U CN 219711922U CN 202320226343 U CN202320226343 U CN 202320226343U CN 219711922 U CN219711922 U CN 219711922U
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- valve
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- fluid
- low resistance
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- 239000012530 fluid Substances 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model provides a low resistance check valve, comprising: a valve body having a hollow tube; a sleeve mount disposed in the hollow tube of the valve body; one side of the sleeve frame is a circular ring, one side of the circular ring is provided with a guide post, and one end of the guide post far away from the circular ring is connected through a stop part; the guide posts are uniformly arranged on the circular ring, and gaps are formed between the guide posts; and the valve ball is arranged in the sleeve frame. According to the low-resistance one-way valve, the valve ball is arranged in the sleeve frame, the sleeve frame enables the movement track of the valve ball to be fixed, the valve ball moves in the sleeve frame under the action force of fluid, the fluid positively flows, the fluid pushes the ball valve to an open state, the fluid normally flows, the fluid reversely moves, the fluid pushes the ball valve to a closed state, and the fluid cannot flow. When the fluid flows forward, the resistance of the valve ball is small, and the forward opening pressure of the one-way valve is small.
Description
Technical Field
The utility model relates to the field of check valves, in particular to a low-resistance check valve.
Background
One-way valves are also known as check valves or non-return valves. For preventing reverse flow of fluid in hydraulic systems or compressed air in pneumatic systems. The check valve is an important component in the fluid system and has the function of preventing reverse flow. The forward direction can pass through the fluid, and the reverse direction can be cut off. The one-way valve has two types, namely a straight-through type valve and a right-angle type valve. The straight-through one-way valve is installed on the pipeline in a threaded connection mode. The right-angle one-way valve has three forms of threaded connection, plate connection and flange connection.
The one-way valve has two types, namely a straight-through type valve and a right-angle type valve. The straight-through one-way valve is installed on the pipeline in a threaded connection mode. The right-angle one-way valve has three forms of threaded connection, plate connection and flange connection. The hydraulic control check valve is also called a latching valve or a pressure maintaining valve, and is the same as the check valve and is used for preventing the oil from flowing reversely. However, when the oil flow in the hydraulic circuit is required to flow reversely, the control oil pressure can be used to open the one-way valve, so that the oil flow can flow in both directions. The hydraulic control check valve adopts a conical valve core, so that the sealing performance is good. When the oil way is required to be closed, the valve can be used as one-way locking of the oil way to play a role in pressure maintaining. The leakage mode of the hydraulic control one-way valve for controlling oil is two modes, namely an internal leakage mode and an external leakage mode. The internal leakage type oil way without back pressure at the oil flow reverse outlet can be used; otherwise, a leakage type is needed to reduce the control oil pressure.
In order to prevent reverse flow from stopping, common check valves are usually provided with a sealing component and a spring for resetting. There is a problem that the forward flow of the check valve needs to overcome the opening resistance of the spring. So that there is a certain unidirectional cracking pressure. And the sealing form is provided with a sealing gasket, and if dirt contaminates the sealing ring, the risk of reverse leakage exists.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present utility model provides a low-resistance check valve to improve the technical problem of large forward flow opening resistance of the check valve.
To achieve the above and other related objects, the present utility model provides a low resistance check valve comprising: valve body, cover frame, valve ball.
The valve body is provided with a hollow pipeline; the sleeve frame is arranged in the hollow pipeline of the valve body; one side of the sleeve frame is a circular ring, one side of the circular ring is provided with a guide post, and one end of the guide post far away from the circular ring is connected through a stop part; the guide posts are uniformly arranged on the circular ring, and gaps are formed between the guide posts; the valve ball is arranged in the sleeve frame.
In an example of the utility model, the valve body comprises a first valve body and a second valve body, the inner diameter of the first valve body is matched with the outer diameter of the second valve body, and the first valve body and the second valve body are fixedly arranged; the first valve body includes a fluid inlet and the second valve body includes a fluid outlet.
In one example of the utility model, the second valve body has an annular groove at a location fixedly disposed with the first valve body.
In one example of the utility model, the annular side of the cage is fixedly disposed at the fluid inlet of the first valve body.
In one example of the utility model, the stop of the cage is not in contact with the second valve body; the stop is smaller than the valve ball so that the valve ball is subjected to an impact force of fluid flowing toward the fluid inlet.
In one example of the utility model, the guide posts of the sleeve frame and the valve ball are tangent to the inner walls of the guide posts on the same cylindrical side, and the diameter of the cylinder is larger than that of the valve ball.
In one example of the utility model, the valve ball moves under fluid between the collar of the cage and the stop.
In one example of the utility model, the valve ball is located at the annular ring of the cage, the one-way valve is in a closed state, the valve ball is not located at the annular ring, and the one-way valve is in an open state.
In one example of the utility model, a valve seat is arranged between the circular ring of the sleeve frame and the fluid inlet of the first valve body, and an arc chamfer matched with the valve ball is arranged on one side of the valve seat close to the valve ball.
In one example of the utility model, a valve seat cooperates with a valve ball to seal a fluid inlet.
According to the low-resistance one-way valve, the valve ball is arranged in the sleeve frame, the sleeve frame enables the movement track of the valve ball to be fixed, the valve ball moves in the sleeve frame under the action force of fluid, the fluid positively flows, the fluid pushes the ball valve to an open state, the fluid normally flows, the fluid reversely moves, the fluid pushes the ball valve to a closed state, and the fluid cannot flow. When the fluid flows forward, the resistance of the valve ball is small, and the forward opening pressure of the one-way valve is small.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a low resistance check valve according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a low resistance check valve according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a cage and a valve ball according to an embodiment of the present utility model.
Description of element reference numerals
100. A first valve body; 200. a second valve body; 110. a fluid inlet; 120. a groove; 210. a fluid outlet; 300. a sleeve frame; 310. a circular ring; 320. a guide post; 330. a stop portion; 400. a valve ball; 500. a valve seat.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs and to which this utility model belongs, and any method, apparatus, or material of the prior art similar or equivalent to the methods, apparatus, or materials described in the examples of this utility model may be used to practice the utility model.
It should be understood that the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used in this specification for descriptive purposes only and not for purposes of limitation, and that the utility model may be practiced without materially departing from the novel teachings and without departing from the scope of the utility model.
Referring to fig. 1 to 3, a low resistance check valve includes: a valve body, a sleeve frame 300 and a valve ball 400.
The valve body is provided with a hollow pipeline; the sleeve frame 300 is arranged in the hollow pipeline of the valve body; one side of the sleeve frame 300 is a circular ring 310, one side of the circular ring 310 is provided with a guide pillar 320, and the guide pillar 320 is connected with one end far away from the circular ring through a stop part 330; the guide posts 320 are uniformly arranged on the circular ring 310, and gaps are formed among the guide posts 320; the valve ball 400 is disposed within the cage 300.
In an embodiment of the present utility model, the valve body includes a first valve body 100 and a second valve body 200, the inner diameter of the first valve body 100 is matched with the outer diameter of the second valve body 200, and the first valve body 100 and the second valve body 200 are fixedly arranged; the first valve body 100 includes a fluid inlet 110 and the second valve body 200 includes a fluid outlet 210. The second valve body 200 has an annular groove 120 at a location fixedly provided with the first valve body 100. The valve body is divided into a first valve body 100 and a second valve body 200, the outer diameter of the second valve body 200 is matched with the inner diameter of the first valve body 100, the second valve body 200 is partially arranged inside the first valve body 100, and the second valve body is sealed and fixed by welding. The second valve body 200 is provided with an annular groove 120 near the welding position, and when welding is performed externally, a back welding forming is formed at the groove, so that the strength is firm, and the internal structure is not affected. The welding mating surfaces of the first valve body 100 and the second valve body 200 are inclined surfaces, thereby making it more convenient to weld.
In an embodiment of the present utility model, one side of the ring 310 of the sleeve 300 is fixedly disposed at the fluid inlet 110 of the first valve body 100. The stopper 330 of the cage 300 is not in contact with the second valve body 200; the stopper 330 is smaller than the valve ball 400 so that the valve ball 400 receives an impact force of fluid flowing toward the fluid inlet 110. The guide posts 320 of the cage 300 and the valve ball 400 are tangent to the inner walls of the guide posts 320 on the same cylindrical side, and the diameter of the cylinder is larger than that of the valve ball 400. The sleeve frame 300 is fixedly arranged in the first valve body 100, and the circular ring 310 of the sleeve frame 300 is fixedly welded at the fluid inlet 110 of the first valve body 100, so that fluid can only enter and exit the check valve through the circular ring 310 of the sleeve frame 300. The stop 330 being smaller than the valve ball 400 allows fluid flowing to the fluid outlet 210 to flush against the valve ball 400, thereby moving the valve ball 400. The cavity formed by the ring 310, the guide post 320 and the stop 330 of the cage 300 fixes the motion profile and range of motion for the movement of the valve ball 400. The diameter of the cylinder where the guide post 320 is located is larger than the diameter of the valve ball 400, so that smooth movement of the valve ball 400 can be ensured.
In one embodiment of the utility model, the valve ball 400 moves under fluid between the ring 310 and the stop 330 of the cage 300. The valve ball 400 is located at the circular ring 310 of the cage 300, the check valve is in a closed state, the valve ball 400 is not located at the circular ring, and the check valve is in an open state. The valve ball 400 is disposed in the cage 300, and the valve ball 400 moves with force when receiving the impact of the fluid, and when the valve ball 400 moves to the ring 310 of the cage 300, the fluid outlet 210 of the first valve body 100 is sealed and the check valve is closed. When the valve ball 400 moves to the stop 330, fluid may flow through the check valve, which is in an open state.
In one embodiment of the present utility model, a valve seat 500 is provided between the ring 310 of the cage 300 and the fluid inlet 110 of the first valve body 100, and an arc chamfer matched with the valve ball 400 is provided on one side of the valve seat 500 adjacent to the valve ball 400. The valve seat 500 cooperates with the valve ball 400 to seal the fluid inlet 110. When the valve ball 400 is positioned at the annular ring, the valve ball 400 engages the valve seat 500, thereby sealing the fluid inlet 110 and preventing fluid flow in the check valve. When the valve ball 400 is not located at the annular ring, the valve ball 400 does not engage the valve seat 500 and fluid in the check valve can flow.
In an embodiment of the present utility model, the valve body is divided into a first valve body 100 and a second valve body 200, the valve seat 500 and the cage 300 are disposed in the first valve body 100, and then the first valve body 100 and the second valve body 200 are welded. In use of the check valve, fluid flows from the inlet, flushes to the valve ball 400, and the valve ball 400 moves under force to the stop 330, and fluid flows from the space between the guide posts 320 of the cage 300, to the second valve body 200, and out of the check valve from the fluid outlet 210. When fluid flows in the reverse direction, from the fluid outlet 210 to the fluid inlet 110, the fluid flushes to the valve ball 400, and the valve ball 400 moves under force toward the annular ring 310 of the cage 300, thereby sealing the one-way valve from fluid passage.
According to the low-resistance one-way valve, the spring is not used for resetting, the valve ball 400 is used for blocking, and the valve ball 400 is driven to move by the impact force of fluid, so that the opening and closing and one-way fluxion of the one-way valve are realized. Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A low resistance check valve, comprising:
a valve body having a hollow tube;
a sleeve mount disposed in the hollow tube of the valve body; one side of the sleeve frame is a circular ring, one side of the circular ring is provided with a guide post, and one end of the guide post far away from the circular ring is connected through a stop part; the guide posts are uniformly arranged on the circular ring, and gaps are formed between the guide posts;
and the valve ball is arranged in the sleeve frame.
2. The low resistance check valve of claim 1, wherein the valve body comprises a first valve body and a second valve body, the first valve body having an inner diameter that matches an outer diameter of the second valve body, the first valve body being fixedly disposed with the second valve body; the first valve body includes a fluid inlet and the second valve body includes a fluid outlet.
3. The low resistance check valve of claim 2, wherein said second valve body has an annular groove in a fixed arrangement with said first valve body.
4. The low resistance check valve of claim 2, wherein said annular side of said cage is fixedly disposed at said fluid inlet of said first valve body.
5. The low resistance one-way valve of claim 2, wherein the stop of the cage is not in contact with the second valve body; the stop is smaller than the valve ball such that the valve ball is subjected to an impact force of fluid flowing toward the fluid inlet.
6. The low resistance one-way valve of claim 1, wherein the guide post of the cage and the inner wall of the valve ball tangent to a plurality of the guide posts are on the same cylindrical side, the cylindrical diameter being greater than the valve ball diameter.
7. The low resistance one-way valve of claim 1, wherein the valve ball moves under fluid action between the ring of the cage and the stop.
8. The low resistance check valve of claim 1, wherein the valve ball is located at the annular ring of the housing, the check valve is in a closed state, the valve ball is not located at the annular ring, and the check valve is in an open state.
9. The low resistance check valve of claim 2, wherein a valve seat is disposed between the annular ring of the cage and the fluid inlet of the first valve body, and wherein a circular arc chamfer matched with the valve ball is disposed on a side of the valve seat adjacent to the valve ball.
10. The low resistance one-way valve of claim 9, wherein said valve seat cooperates with said valve ball to seal said fluid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320226343.4U CN219711922U (en) | 2023-02-14 | 2023-02-14 | Low-resistance one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320226343.4U CN219711922U (en) | 2023-02-14 | 2023-02-14 | Low-resistance one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219711922U true CN219711922U (en) | 2023-09-19 |
Family
ID=88003930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320226343.4U Active CN219711922U (en) | 2023-02-14 | 2023-02-14 | Low-resistance one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219711922U (en) |
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2023
- 2023-02-14 CN CN202320226343.4U patent/CN219711922U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |