CN220930273U - Lifting one-way valve - Google Patents
Lifting one-way valve Download PDFInfo
- Publication number
- CN220930273U CN220930273U CN202322714088.0U CN202322714088U CN220930273U CN 220930273 U CN220930273 U CN 220930273U CN 202322714088 U CN202322714088 U CN 202322714088U CN 220930273 U CN220930273 U CN 220930273U
- Authority
- CN
- China
- Prior art keywords
- valve
- fluid
- poppet
- fluid inlet
- check valve
- Prior art date
- 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.)
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Links
- 239000012530 fluid Substances 0.000 claims abstract description 97
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 33
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to the technical field of valves and discloses a lifting type one-way valve, which comprises a valve body, a valve core and a soft sealing valve seat, wherein a fluid channel is formed on the valve body, the fluid channel is provided with a fluid inlet and a fluid outlet, the valve core is movably arranged in the fluid channel, the valve core is provided with a first position at least partially positioned in the fluid inlet and blocking the fluid inlet and a second position for conducting the fluid inlet and the fluid outlet, the soft sealing valve seat is fixed on the opening edge of the fluid inlet, and the soft sealing valve seat is contacted with the soft sealing valve seat and seals the fluid inlet when the valve core moves from the second position to the first position so as to improve the sealing performance and the service life of the lifting type one-way valve.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a lifting one-way valve.
Background
Fluid valves are a common structure for controlling the flow of fluid. A check valve is one type of fluid valve that allows fluid to pass through the valve body only along the inlet side of the check valve to the outlet side, but not from the outlet side of the check valve to the inlet side, and is therefore commonly used in hydraulic systems to prevent reverse flow of oil flow or in pneumatic systems to prevent reverse flow of compressed air.
The lifting type one-way valve is one of the one-way valves, and has the action principle that when fluid enters from an inlet, the valve body is pushed to lift and move, a flow path between the inlet and an outlet is conducted after the valve body moves, and when the fluid enters from the outlet, the valve core cannot be pushed to move. After the lifting one-way valve is turned into liquid to stop flowing in the flowing state of the liquid, the valve core can be restored to the position before being pushed under the influence of gravity or pressure to reseal the inlet, but certain collision can be generated when the valve core is contacted and sealed with the inlet, the problem of loose inlet sealing can occur under long-term use, and the service life of the lifting one-way valve is influenced.
Disclosure of utility model
The utility model mainly aims to provide a lifting type one-way valve, which aims to prolong the service life of the lifting type one-way valve.
In order to achieve the above object, the present utility model provides a poppet check valve comprising:
A valve body formed with a fluid passage having a fluid inlet and a fluid outlet;
A valve element movably disposed in the fluid passage, the valve element having a first position at least partially within the fluid inlet and blocking the fluid inlet and a second position in communication with the fluid inlet and the fluid outlet; and
A soft seal valve seat secured to a rim of the fluid inlet to flexibly contact the valve element and seal the fluid inlet when the valve element moves from the second position to the first position.
Optionally, the poppet-type check valve further comprises a fastener disposed proximate to the fluid inlet port edge and configured to secure the soft seal valve seat to the fluid inlet port edge.
Optionally, the fastener is detachably connected with the valve body.
Optionally, the valve body is further formed with a clearance groove communicated with the fluid channel, and the lifting one-way valve further comprises a reset structure, wherein the reset structure comprises a connecting piece and a reset piece;
One end of the resetting piece is connected with the bottom of the avoidance groove, and the other end of the resetting piece is connected with the connecting piece; the connecting piece is abutted with the valve core; the reset piece is used for pushing the valve core to move from the second position to the first position.
Optionally, the reset element is a reset spring.
Optionally, the connecting piece is provided with a guide post extending away from the valve core; the return spring part is sleeved on the guide post.
Optionally, the connector further has a blocking sidewall facing away from the fluid outlet, the blocking sidewall being adjacent to the sidewall of the clearance groove and movable into abutment with the sidewall of the clearance groove when the valve spool is in the first position.
Optionally, the avoidance groove is formed with a pressure relief hole that extends through a sidewall of the avoidance groove and communicates with the fluid outlet.
Optionally, the soft sealing valve seat is a rubber sealing ring.
Optionally, the valve core is a spherical valve core.
According to the technical scheme, the soft sealing valve seat is arranged at the fluid inlet of the valve body, so that the valve core can be prevented from being in hard contact collision with the fluid inlet when moving from the second position to the first position, the valve core and the fluid inlet are protected, the problem of poor inlet sealing caused by collision is prevented, and the service life of the lifting type one-way valve is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a poppet-type check valve according to the present utility model.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 1000 | Lifting one-way valve | 4 | Fastening piece |
| 1 | Valve body | 5 | Reset structure |
| 11 | Fluid channel | 51 | Connecting piece |
| 12 | Fluid inlet | 511 | Guide post |
| 13 | Fluid outlet | 512 | Barrier sidewall |
| 14 | Position avoiding groove | 52 | Reset piece |
| 2 | Valve core | 6 | Pressure relief hole |
| 3 | Soft sealing valve seat |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The present utility model proposes a poppet-type check valve 1000, and fig. 1 shows an embodiment of the present utility model.
In an embodiment of the present utility model, as shown in fig. 1, the poppet-type check valve 1000 includes a valve body 1, a valve core 2, and a soft sealing valve seat 3, wherein the valve body 1 is formed with a fluid channel 11, the fluid channel 11 has a fluid inlet 12 and a fluid outlet 13, the valve core 2 is movably disposed in the fluid channel 11, the valve core 2 has a first position at least partially disposed in the fluid inlet 12 and blocking the fluid inlet 12, and a second position for communicating the fluid inlet 12 and the fluid outlet 13, and the soft sealing valve seat 3 is fixed on a rim of the fluid inlet 12 so as to flexibly contact the valve core 2 and seal the fluid inlet 12 when the valve core 2 moves from the second position to the first position.
In the technical scheme of the utility model, the soft sealing valve seat 3 is arranged at the fluid inlet 12 of the valve body 1, so that the soft sealing valve seat 3 can prevent the valve core 2 from hard contact collision with the fluid inlet 12 when moving from the second position to the first position, the valve core 2 and the fluid inlet 12 are protected, the problem of poor inlet sealing caused by collision is prevented, and the sealing performance and the service life of the lifting type one-way valve 1000 are improved.
In order to prevent the soft sealing valve seat 3 from falling off from the fluid inlet 12 during use, in an embodiment, the poppet-type check valve 1000 further includes a fastener 4, where the fastener 4 is disposed near the edge of the fluid inlet 12 and is used for fixing the soft sealing valve seat 3 to the edge of the fluid inlet 12, and the fastener 4 is added to fix the soft sealing valve seat 3 at the fluid inlet 12, so as to avoid the soft sealing valve seat 3 from falling off.
The principle of the soft sealing valve seat 3 that the valve core 2 is prevented from being in hard contact with the fluid inlet 12 is realized by means of self elastic deformation, so that the elastic performance of the soft sealing valve seat 3 can be gradually reduced in the long-term use process. To facilitate the replacement of the soft sealing valve seat 3, in one embodiment, the fastener 4 is detachably connected to the valve body 1, the fastener 4 is removed first during the replacement, and the soft sealing valve seat 3 is detached to facilitate the replacement of the soft sealing valve seat 3. The specific shape and structure of the fastening member 4 are not limited, and the corresponding detachable connection mode is selected according to the structure of the fastening member 4, for example, when the fastening member 4 is a locking piece with a threaded hole, the locking piece may be punched at a proper position of the fluid channel 11 and locked on the valve body 1 by a screw, in general, the fluid inlet 12 is a circular hole, and then the soft sealing valve seat 3 may be correspondingly provided in a circular shape, and at this time, the locking piece may also be provided in a circular shape and locked by at least two screws.
In order to facilitate the valve core 2 to return to the first position as soon as possible when the fluid inlet 12 needs to be closed to prevent the fluid from flowing backwards, in an embodiment, the valve body 1 is further formed with a clearance groove 14 communicated with the fluid channel 11, the lifting check valve 1000 further comprises a return structure 5, the return structure 5 comprises a connecting piece 51 and a return piece 52, one end of the return piece 52 is connected with the bottom of the clearance groove 14 to prevent the return piece 52 from deviating from a designated installation position, and the other end of the return piece 52 is connected with the connecting piece 51 to prevent the connecting piece 51 from deviating from the connection with the return piece 52, and the valve core 2 cannot be pushed to return under the action of the return piece 52; the connecting piece 51 is abutted with the valve core 2; the reset piece 52 is used for pushing the valve core 2 to move from the second position to the first position, so that the valve core 2 is reset, and the avoidance groove 14 is used for accommodating the reset piece 52.
In order to specifically implement the restoring action of the restoring element 52, in an embodiment, the restoring element 52 is a restoring spring, which has a simple action principle and low cost, and the inner diameter of the avoidance slot 14 may be set according to the radius of the restoring spring, which is slightly larger than the radius of the restoring spring after being compressed. In fig. 1, a part of the return spring is cut to show a cross section of the return spring, and the return spring is actually a connected whole.
In order to avoid that the shrinkage and the resetting direction of the spring do not deviate greatly, in an embodiment, the connecting piece 51 is provided with a guide post 511 extending away from the valve core 2, the resetting spring is partially sleeved on the guide post 511, and the guide post 511 is used for preventing the resetting spring from deviating when being shrunk or reset, so that the loss of deformability of the resetting spring is aggravated, the stability of the shrinkage and resetting process is ensured, and the service life of the resetting spring is prolonged.
To avoid backflow of fluid caused by fluid rushing away from the fluid outlet 13 towards the valve core 2, in an embodiment, the connecting member 51 further has a blocking sidewall 512 facing away from the fluid outlet 13, the blocking sidewall 512 being adjacent to the sidewall of the relief groove 14 when the valve core 2 is in the first position, and if there is a tendency for fluid to backflow from the fluid outlet 13, the connecting member 51 will be impacted when fluid flows from the fluid outlet 13 towards the valve core 2, such that the connecting member 51 moves away from the fluid outlet 13 and eventually the blocking sidewall 512 abuts the sidewall of the relief groove 14, such that the connecting member 51 is still pressed against the valve core 2, and backflow of fluid is further avoided by the blocking of the connecting member 51 by the sidewall of the relief groove 14.
During the use of the poppet check valve 1000, the space-avoidance groove 14 is filled with fluid, and if the fluid in the space-avoidance groove 14 cannot be discharged in time, when the valve element 2 moves towards the space-avoidance groove 14 and opens the fluid inlet 12, the pressure in the space-avoidance groove 14 will increase, so that the valve element 2 cannot smoothly move from the first position to the second position, thereby obstructing the flow of the fluid, and the flow rate of the fluid will be affected, which is manifested as a failure of the poppet check valve 1000. To solve the above problem, in one embodiment, the relief groove 14 is formed with a pressure relief hole 6, and the pressure relief hole 6 penetrates through a side wall of the relief groove 14 and is in communication with the fluid outlet 13, so that the relief groove 14 continuously discharges fluid to the fluid outlet 13 through the pressure relief hole 6 during the process of moving the valve element 2 from the first position to the second position, so as to balance the pressure of the relief groove 14 and the fluid outlet 13, thereby preventing the occurrence of the above problem.
Considering that the fluid inlet 12 is typically a circular hole, in this embodiment, the soft sealing valve seat 3 is provided as a rubber sealing ring. The soft sealing valve seat 3 can also be a plastic sealing ring.
In this embodiment, the valve core 2 is a spherical valve core 2, so as to improve the sealing effect between the valve core 2 and the soft sealing valve seat 3.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A poppet-type check valve, comprising:
A valve body formed with a fluid passage having a fluid inlet and a fluid outlet;
A valve element movably disposed in the fluid passage, the valve element having a first position at least partially within the fluid inlet and blocking the fluid inlet and a second position in communication with the fluid inlet and the fluid outlet; and
A soft seal valve seat secured to a rim of the fluid inlet to flexibly contact the valve element and seal the fluid inlet when the valve element moves from the second position to the first position.
2. The poppet check valve of claim 1, further comprising a fastener disposed proximate to a rim of the fluid inlet and configured to secure the soft seal valve seat to the rim of the fluid inlet.
3. The poppet-type check valve of claim 2, wherein the fastener is removably coupled to the valve body.
4. A poppet-type check valve according to any one of claims 1 to 3 wherein said valve body is further formed with a clearance groove in communication with said fluid passageway, said poppet-type check valve further comprising a reset structure including a connector and a reset;
One end of the resetting piece is connected with the bottom of the avoidance groove, and the other end of the resetting piece is connected with the connecting piece; the connecting piece is abutted with the valve core; the reset piece is used for pushing the valve core to move from the second position to the first position.
5. The poppet-type check valve of claim 4, wherein the return member is a return spring.
6. The poppet-type check valve of claim 5, wherein the connector has a guide post extending away from the valve spool; the return spring part is sleeved on the guide post.
7. The poppet check valve of claim 4, wherein the connector further has a blocking sidewall facing away from the fluid outlet, the blocking sidewall adjacent the sidewall of the bypass groove and movable into abutment with the sidewall of the bypass groove when the valve spool is in the first position.
8. The poppet check valve of claim 4, wherein the relief groove is formed with a pressure relief hole extending through a sidewall of the relief groove and communicating with the fluid outlet.
9. A poppet-type check valve according to any one of claims 1 to 3 wherein said soft seal valve seat is a rubber seal.
10. A poppet-type check valve according to any one of claims 1 to 3 wherein said valve spool is a ball valve spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322714088.0U CN220930273U (en) | 2023-10-09 | 2023-10-09 | Lifting one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322714088.0U CN220930273U (en) | 2023-10-09 | 2023-10-09 | Lifting one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220930273U true CN220930273U (en) | 2024-05-10 |
Family
ID=90932992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322714088.0U Active CN220930273U (en) | 2023-10-09 | 2023-10-09 | Lifting one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220930273U (en) |
-
2023
- 2023-10-09 CN CN202322714088.0U patent/CN220930273U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |