CN211975553U - One-way throttle valve - Google Patents
One-way throttle valve Download PDFInfo
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- CN211975553U CN211975553U CN202020012887.7U CN202020012887U CN211975553U CN 211975553 U CN211975553 U CN 211975553U CN 202020012887 U CN202020012887 U CN 202020012887U CN 211975553 U CN211975553 U CN 211975553U
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Abstract
The utility model provides a one-way throttle valve, which comprises a valve body, a main valve core, a throttle rod and a return spring; the valve body is provided with a first channel, a first cavity and a second cavity which are communicated with each other, a separating part for separating the first cavity from the first channel is arranged in the valve body, and a throttling hole is arranged on the one-way throttling valve of the separating part; the throttle rod is provided with a throttle section, the throttle rod is arranged in the first cavity, the throttle section penetrates through the throttle hole, a throttle groove is arranged on the surface of the throttle section, the shape of the throttle groove is a V shape gradually expanding towards the first channel, the throttle rod can drive the throttle section to do linear motion in the throttle hole along the axial direction of the throttle hole so as to change the cross-sectional area of a gap formed between the throttle groove and the hole wall of the throttle hole, and the main valve core and the reset spring are arranged in the second cavity. The utility model has the advantages of reasonable in design, simple structure can reduce cost of maintenance, brings convenience for maintenance simultaneously.
Description
Technical Field
The utility model relates to the technical field of hydraulic pressure, in particular to one-way throttle valve.
Background
With the continuous progress of scientific technology and the increasing productivity level, the application of hydraulic technology in industrial production and daily life of people is more and more extensive.
The one-way throttle valve is an important part in a hydraulic system, the existing one-way throttle valve is characterized in that a throttle valve sleeve is arranged in a valve body, a main valve core is arranged in a structure in the throttle valve sleeve, the size of flow is adjusted by changing the position of the valve body through the throttle valve sleeve during use, the throttle valve sleeve is easily abraded, maintenance cost is increased, and inconvenience is brought to maintenance work due to the fact that the main valve core is arranged in the throttle valve sleeve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reasonable in design, simple structure's one-way choke valve can reduce cost of maintenance, brings the convenience for maintenance simultaneously.
In order to achieve the above object, the utility model adopts the following technical scheme:
a one-way throttle valve comprises a valve body, a main valve core, a throttle rod and a return spring;
the valve body is provided with a first channel, a first cavity and a second cavity which are communicated with each other, a separating part used for separating the first cavity from the first channel is arranged in the valve body, an orifice is arranged on the one-way throttle valve of the separating part, the first cavity can be communicated with the outside through the orifice and the first channel at one time, and a second channel used for communicating the second cavity with the outside and a third channel used for communicating the second cavity with the first channel are arranged on the inner wall of the second cavity;
the throttle lever is provided with a throttle section, the throttle lever is arranged in the first cavity, the throttle section is arranged in the throttle hole in a penetrating mode, a throttle groove is arranged on the surface of the throttle section, the shape of the throttle groove is a V shape gradually expanding towards the first channel, and the throttle lever can drive the throttle section to do linear motion in the direction of the axis of the throttle hole in the throttle hole so as to change the cross-sectional area of a gap formed between the throttle groove and the hole wall of the throttle hole;
the main valve core and the reset spring are arranged in the second cavity, two ends of the reset spring are respectively connected to the inner wall of the second cavity and the main valve core, so that the reset spring can press the main valve core against the third channel by means of the elasticity of the reset spring to block the third channel, a circulation hole is formed in the main valve core, and when the main valve core blocks the third channel, the second channel can be communicated with the first cavity and the second cavity through the circulation hole.
Preferably, the throttling section and the throttling hole are in clearance fit.
Preferably, the device also comprises a valve sleeve which is detachably connected on the inner wall of the first cavity,
the throttle lever includes that the outside sets up the screwed linkage segment, be provided with on the valve barrel with the screw that the linkage segment matches, the throttle lever passes through linkage segment threaded connection is in the screw, be used for through the linkage segment is in screw in-hole precession screw-out drives the motion of throttle segment.
Preferably, one end of the first cavity, which is far away from the first channel, is provided with a mounting hole, and the valve sleeve is in threaded connection with the mounting hole.
Preferably, the device further comprises a sealing component;
the throttle rod further comprises a sealing section positioned between the connecting section and the throttle section, the valve sleeve is provided with a containing hole coaxial with the screw hole, and the sealing section is arranged in the containing hole in a penetrating mode;
the sealing member is disposed between the sealing section and an inner wall of the receiving hole to seal a gap between the sealing section and the inner wall of the receiving hole.
Preferably, the main valve core has a valve head with a cylindrical outline, the flow hole is arranged on the valve head and extends along the radial direction of the valve head, and two ends of the flow hole are respectively connected with the second channel and the first cavity.
Preferably, the main valve core is internally provided with an inner cavity communicated with the second cavity, and the flow hole is communicated with the second cavity through the inner cavity.
Preferably, the number of the flow holes is more than two, and the flow holes are uniformly distributed along the circumferential direction of the valve head.
The utility model discloses an one-way throttle valve, through adopting the choke lever sets up in the first cavity and the throttle section is worn to establish in the orifice, the main valve core with reset spring sets up technical scheme in the second cavity, not only reasonable in design, simple structure can reduce cost of maintenance moreover, brings the convenience for maintenance simultaneously.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the one-way throttle valve of the present invention.
Wherein: 1. a valve body; 11. a first channel; 12. a first cavity; 13. a second cavity; 14. a partition portion; 15. an orifice; 16. a second channel; 17. a third channel; 18. mounting holes; 2. a main valve element; 21. a valve head; 22. a flow-through hole; 23. an inner cavity; 3. a throttle lever; 31. a throttling section; 32. a throttling groove; 33. a connecting section; 34. a sealing section; 4. a return spring; 5. a valve housing; 51. a screw hole; 52. an accommodation hole; 6. and a sealing member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following will explain the mobile working chair of the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the one-way throttle valve includes a valve body 1, a main spool 2, a throttle lever 3, and a return spring 4. The valve body 1 is provided with a first channel 11, a first cavity 12 and a second cavity 13 which are communicated with each other, a separating part 14 for separating the first cavity 12 and the first channel 11 is arranged in the valve body 1, an orifice 15 is arranged on a one-way throttle valve of the separating part 14, the first cavity 12 can be communicated with the outside through the orifice 15 and the first channel 11 at a time, and a second channel 16 for communicating the second cavity 13 with the outside and a third channel 17 for communicating the second cavity 13 with the first channel 11 are arranged on the inner wall of the second cavity 13.
The throttle lever 3 has a throttle section 31, the throttle lever 3 is disposed in the first cavity 12, and the throttle section 31 is disposed through the throttle hole 15, and it should be noted that the throttle section 31 and the throttle hole 15 are in clearance fit. The specific gap size is such that it does not interfere with movement of the orifice section 31 in the orifice 15 and minimizes fluid seepage through the gap. The throttle groove 32 is formed on the surface of the throttle section 31, the shape of the throttle groove 32 is a V shape gradually expanding toward the first passage 11, and the throttle lever 3 can drive the throttle section 31 to make a linear motion in the throttle hole 15 along the axial direction of the throttle hole 15 to change the cross-sectional area of the gap formed between the throttle groove 32 and the hole wall of the throttle hole 15. Main valve element 2 and reset spring 4 are arranged in second cavity 13, and two ends of reset spring 4 are respectively connected to inner wall of second cavity 13 and main valve element 2, so that reset spring 4 can press main valve element 2 against third channel 17 by means of its own elastic force to block third channel 17, main valve element 2 is provided with flow hole 22, and when main valve element 2 blocks third channel 17, second channel 16 can be communicated with first cavity 12 and second cavity 13 through flow hole 22.
The working principle is that external fluid enters the first cavity 12 and the second cavity 13 through the second channel 16 and the circulation hole 22 in sequence, pressure is formed in the second cavity 13 to press the main valve core against the third channel 17 to seal the third channel 17, and at the moment, the fluid does not directly enter the first channel 11 from the second cavity 13, but enters the first cavity firstly, then enters the first channel 11 through a gap formed between the throttling groove 32 and the hole wall of the throttling hole 15, and is discharged through the first channel 11. At this time, the flow rate of the fluid flowing to the first passage 11 can be controlled by adjusting the position of the throttle section 31 in the throttle hole 15 and changing the cross-sectional area of the gap formed between the throttle groove 32 and the hole wall of the throttle hole 15. It should be noted that when external fluid enters from first passage 11, main spool 2 is directly pushed to open third passage 17 against the elastic force of return spring 4, and at this time, fluid directly enters second chamber 13 through third passage 17 and is discharged from second passage 16.
This scheme adopts main valve element 2 and throttle lever 3 separately to set up, adopts the mode of adjusting the flow through adjusting the position of adjusting throttle section 31 in orifice 15 simultaneously, can overhaul main valve element 2 and throttle lever 3 respectively, for prior art, can reduce cost of maintenance, brings the convenience for maintenance simultaneously.
Further, as shown in fig. 1, the valve sleeve 5 is further included, the valve sleeve 5 is detachably connected to the inner wall of the first cavity 12, specifically, a mounting hole 18 is formed at one end of the first cavity 12 far away from the first channel 11, and the valve sleeve 5 is screwed in the mounting hole 18. It should be noted that the way in which the valve sleeve 5 is detachably connected to the inner wall of the first chamber 12 is not limited to this, and any other way that can be realized can be adopted. The throttle rod 3 comprises a connecting section 33 with threads arranged outside, a screw hole 51 matched with the connecting section 33 is arranged on the valve sleeve 5, and the throttle rod 3 is in threaded connection in the screw hole 51 through the connecting section 33 and is used for driving the throttle section 31 to move through screwing-in and screwing-out of the connecting section 33 in the screw hole 51. By adopting the mode, the position of the throttle rod 3 can be conveniently adjusted, the valve sleeve 5 and the throttle rod 3 can be conveniently detached or installed, and convenience is provided for maintenance work.
Preferably, as shown in fig. 1, further comprises a sealing member 6; the throttle lever 3 further includes a sealing section 34 between the connecting section 33 and the throttle section 31, the valve housing 5 has a receiving hole 52 coaxial with the threaded hole 51, the sealing section 34 is inserted into the receiving hole 52, and the sealing member 6 is disposed between the sealing section 34 and an inner wall of the receiving hole 52 to seal a gap between the sealing section 34 and the inner wall of the receiving hole 52. This prevents fluid in the first chamber from flowing to the connecting section 33 and seeping between the connecting section 33 and the threaded bore 51.
As an alternative, as shown in fig. 1, main spool 2 has a valve head 21 with a cylindrical outline, a flow hole 22 is provided on valve head 21 and extends in the radial direction of valve head 21, and both ends are connected to second passage 16 and first cavity 12, respectively. Specifically, main spool 2 has an inner chamber 23 therein communicating with second chamber 13, and flow hole 22 communicates with second chamber 13 through inner chamber 23. Further, the number of the flow holes 22 is more than two, and the flow holes are uniformly arranged along the circumferential direction of the valve head 21, so as to increase the flow rate of the fluid flowing to the first cavity 12 and the second cavity 13 from the second passage 16.
Through adopting above technical scheme, make the utility model has the advantages of reasonable in design, simple structure can reduce cost of maintenance, brings convenience for maintenance simultaneously.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A one-way throttle valve, its characterized in that:
comprises a valve body, a main valve core, a throttle lever and a return spring;
the valve body is provided with a first channel, a first cavity and a second cavity which are communicated with each other, a separating part used for separating the first cavity from the first channel is arranged in the valve body, an orifice is arranged on the one-way throttle valve of the separating part, the first cavity can be communicated with the outside through the orifice and the first channel at one time, and a second channel used for communicating the second cavity with the outside and a third channel used for communicating the second cavity with the first channel are arranged on the inner wall of the second cavity;
the throttle lever is provided with a throttle section, the throttle lever is arranged in the first cavity, the throttle section is arranged in the throttle hole in a penetrating mode, a throttle groove is arranged on the surface of the throttle section, the shape of the throttle groove is a V shape gradually expanding towards the first channel, and the throttle lever can drive the throttle section to do linear motion in the direction of the axis of the throttle hole in the throttle hole so as to change the cross-sectional area of a gap formed between the throttle groove and the hole wall of the throttle hole;
the main valve core and the reset spring are arranged in the second cavity, two ends of the reset spring are respectively connected to the inner wall of the second cavity and the main valve core, so that the reset spring can press the main valve core against the third channel by means of the elasticity of the reset spring to block the third channel, a circulation hole is formed in the main valve core, and when the main valve core blocks the third channel, the second channel can be communicated with the first cavity and the second cavity through the circulation hole.
2. The one-way throttle valve of claim 1, wherein:
the throttling section is in clearance fit with the throttling hole.
3. The one-way throttle valve of claim 1, wherein:
also comprises a valve sleeve which is detachably connected on the inner wall of the first cavity,
the throttle lever includes that the outside sets up the screwed linkage segment, be provided with on the valve barrel with the screw that the linkage segment matches, the throttle lever passes through linkage segment threaded connection is in the screw, be used for through the linkage segment is in screw in-hole precession screw-out drives the motion of throttle segment.
4. The one-way throttle valve of claim 3, wherein:
one end of the first cavity, which is far away from the first channel, is provided with a mounting hole, and the valve sleeve is in threaded connection with the mounting hole.
5. The one-way throttle valve of claim 3, wherein:
also includes a sealing member;
the throttle rod further comprises a sealing section positioned between the connecting section and the throttle section, the valve sleeve is provided with a containing hole coaxial with the screw hole, and the sealing section is arranged in the containing hole in a penetrating mode;
the sealing member is disposed between the sealing section and an inner wall of the receiving hole to seal a gap between the sealing section and the inner wall of the receiving hole.
6. The one-way throttle valve according to any one of claims 1 to 5, characterized in that:
the main valve core is provided with a valve head with a cylindrical outline, the flow hole is arranged on the valve head and extends along the radial direction of the valve head, and two ends of the flow hole are respectively connected with the second channel and the first cavity.
7. The one-way throttle valve of claim 6, wherein:
the main valve core is internally provided with an inner cavity communicated with the second cavity, and the circulation hole is communicated with the second cavity through the inner cavity.
8. The one-way throttle valve of claim 6, wherein:
the number of the flow holes is more than two, and the flow holes are uniformly distributed along the circumferential direction of the valve head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020012887.7U CN211975553U (en) | 2020-01-03 | 2020-01-03 | One-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020012887.7U CN211975553U (en) | 2020-01-03 | 2020-01-03 | One-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975553U true CN211975553U (en) | 2020-11-20 |
Family
ID=73386427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020012887.7U Expired - Fee Related CN211975553U (en) | 2020-01-03 | 2020-01-03 | One-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293973A (en) * | 2021-12-31 | 2022-04-08 | 杰瑞能源服务有限公司 | Logging tool string and manufacturing process thereof |
-
2020
- 2020-01-03 CN CN202020012887.7U patent/CN211975553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293973A (en) * | 2021-12-31 | 2022-04-08 | 杰瑞能源服务有限公司 | Logging tool string and manufacturing process thereof |
| CN114293973B (en) * | 2021-12-31 | 2024-03-12 | 杰瑞能源服务有限公司 | Logging tool string and manufacturing process thereof |
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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: 20201120 Termination date: 20220103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |