CN220869446U - Hydraulic control one-way valve - Google Patents
Hydraulic control one-way valve Download PDFInfo
- Publication number
- CN220869446U CN220869446U CN202322805802.7U CN202322805802U CN220869446U CN 220869446 U CN220869446 U CN 220869446U CN 202322805802 U CN202322805802 U CN 202322805802U CN 220869446 U CN220869446 U CN 220869446U
- Authority
- CN
- China
- Prior art keywords
- liquid
- hole
- valve core
- guide section
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 118
- 238000000034 method Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 15
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a hydraulic control one-way valve which comprises a valve body and a valve core assembly, wherein the valve core assembly comprises a push rod, a liquid inlet sleeve, a valve sleeve, a large valve core, a small valve core and a first spring for applying elastic acting force to the small valve core, a first central hole is formed in the large valve core, the small valve core comprises a first guide section inserted into the first central hole, the first guide section is a cylinder, the outer diameter of the first guide section is the same as the diameter of the first central hole, and a first liquid passing channel for guiding liquid in the liquid inlet sleeve to the valve sleeve is arranged in the first guide section. According to the hydraulic control one-way valve, the guide section of the small valve core is cylindrical, no gap exists between the outer circular surface of the small valve core and the inner circular surface of the large valve core, deflection does not occur in the moving process of the small valve core, side bending fracture of the spring is not easy to occur, and the reliability is improved.
Description
Technical Field
The utility model belongs to the technical field of fully-mechanized coal mining hydraulic supports, and particularly relates to a hydraulic control one-way valve.
Background
Along with the development of the coal mining technology towards large mining height and ultra-large mining height, the supporting height of the hydraulic support is increased continuously, from 5.5m to 7m and 8.8m, and then to the latest 10m at present, the supporting strength and difficulty are increased more and more, the hydraulic support upright post jack is required to have large-flow liquid passing capability, the requirements of rapid descending, moving and lifting of the support are met, and meanwhile, the pressure impact and vibration are also required to be reduced when the upright post jack passes liquid in large flow. In recent years, coal mining industry is gradually improved, the large-scale support is widely applied, and the large-scale support is urgently required to be provided with a column hydraulic control one-way valve with large flow and reliable performance to control lifting.
The patent document with the publication number of CN107514273A discloses a column hydraulic control one-way valve, which comprises a valve body, a screw sleeve, a valve sleeve, a push rod, a large valve core and a small valve core which are arranged in the valve sleeve, a liquid inlet sleeve which is sleeved on the push rod and is positioned between the screw sleeve and the valve sleeve, and a valve seat which is arranged in the liquid inlet sleeve and is matched with the large valve core to realize sealing, wherein the valve seat and the large valve core are made of metal materials.
The stand column hydraulic control check valve with the structure has the advantages that the end part of the small valve core is of a triangular structure, the small valve core is movably arranged, a gap exists between the triangular end part of the small valve core and the large valve core, when liquid is fed between the triangular end part of the small valve core and the large valve core, the movement track of the small valve core is unstable, the situation of deflection easily occurs, the problem of uneven liquid feeding of the triangular end face also can be caused, and the spring side bending fracture is also caused, so that the reliability is influenced. And the small valve core with the triangular structure is not easy to process.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a hydraulic control one-way valve, which aims to avoid deflection of a spring in the moving process of a small valve core and improve reliability.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the hydraulic control one-way valve comprises a valve body and a valve core assembly, wherein the valve core assembly comprises a push rod, a liquid inlet sleeve, a valve sleeve, a large valve core, a small valve core and a first spring for applying elastic acting force to the small valve core, a first central hole is formed in the large valve core, the small valve core comprises a first guide section inserted into the first central hole, the first guide section is a cylinder, the outer diameter of the first guide section is the same as the diameter of the first central hole, and a first liquid passing channel for guiding liquid in the liquid inlet sleeve to the valve sleeve is arranged in the first guide section.
The first liquid passing channel comprises a first liquid passing hole and a second liquid passing hole, the first liquid passing hole is communicated with the inner cavity of the liquid inlet sleeve, and the second liquid passing hole is communicated with the first liquid passing hole.
The first liquid through hole extends along the axial direction of the first guide section, and the second liquid through hole extends from the inner circular surface of the first liquid through hole to the outer circular surface of the first guide section.
The second through holes are formed in a plurality of ways.
The ejector rod is provided with a second liquid passing channel for guiding the liquid in the liquid inlet sleeve to the first liquid passing channel.
The second liquid passage comprises a third liquid passage hole and a fourth liquid passage hole, the third liquid passage hole is communicated with the first liquid passage, and the fourth liquid passage hole is communicated with the inner cavity of the liquid inlet sleeve.
The third liquid through hole extends along the axial direction of the ejector rod, and the fourth liquid through hole extends from the inner circular surface of the third liquid through hole to the outer circular surface of the ejector rod.
The fourth through holes are formed in a plurality of mode.
The first spring is a rectangular spring.
And a second spring is sleeved on the ejector rod, and the second spring is a rectangular spring.
According to the hydraulic control one-way valve, the guide section of the small valve core is cylindrical, a large gap is arranged between the outer circular surface of the small valve core and the inner circular surface of the large valve core, the liquid passing area is increased, deflection cannot occur in the moving process of the small valve core, side bending fracture of the spring cannot occur easily, and the reliability is improved.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
FIG. 1 is a cross-sectional view of a pilot operated check valve of the present utility model;
FIG. 2 is a cross-sectional view of the valve cartridge assembly;
FIG. 3 is a cross-sectional view of a small valve cartridge;
FIG. 4 is a cross-sectional view of the ejector pin;
Marked in the figure as: 1. a screw sleeve; 2. a push rod; 201. a third liquid through hole; 202. a fourth liquid passing hole; 3. a second spring; 4. a liquid inlet sleeve; 5. a valve seat; 6. a large valve core; 7. a small valve core; 701. a first liquid passing hole; 702. a second liquid passing hole; 703. a first guide section; 704. a second guide section; 705. a sealing section; 8. a first spring; 9. a valve sleeve; 10. and a valve body.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the utility model, and to aid in its practice, by those skilled in the art.
In the following embodiments, the "first", "second", "third" and "fourth" do not represent an absolute distinction between structures and/or functions, and do not represent a sequential order of execution, but are merely for convenience of description.
As shown in fig. 1 to 4, the utility model provides a hydraulic control one-way valve, which comprises a valve body 10 and a valve core assembly, wherein the valve core assembly comprises a screw sleeve 1, a valve sleeve 9, a push rod 2, a first spring 8, a second spring 3, a large valve core 6 and a small valve core 7 which are arranged in the valve sleeve 9, a liquid inlet sleeve 4 which is sleeved on the push rod 2 and is positioned between the screw sleeve 1 and the valve sleeve 9, and a valve seat 5 which is arranged in the liquid inlet sleeve 4 and is used for being matched with the large valve core 6 to realize sealing. Valve pocket 9, big case 6, little case 7, feed liquor cover 4, swivel nut 1, disk seat 5, second spring 3 and first spring 8 constitute cartridge formula case subassembly, case subassembly is integrated into one piece structure, swivel nut 1 and feed liquor cover 4 cover are located on ejector pin 2, big case 6 and little case 7 set up in the inside of valve pocket 9, ejector pin 2 is used for exerting axial pressure to big case 6 and little case 7, ejector pin 2 can promote big case 6 and little case 7 and move towards the inside of valve pocket 9, makes big case 6 and disk seat 5 separate, realizes the opening of check valve. The screw sleeve 1 is in threaded connection with the valve body 10, the liquid inlet sleeve 4 is clamped between the screw sleeve 1 and the valve sleeve 9, the liquid inlet sleeve 4 is fixedly connected with the screw sleeve 1 and the valve sleeve 9, the valve sleeve 9 is used for limiting the large valve core 6 in the axial direction, the screw sleeve 1 is used for limiting the ejector rod 2 in the axial direction, and the screw sleeve 1 and the valve body 10 are connected with an external upright jack. The first spring 8 is used for applying elastic force to the small valve core 7, and the large valve core 6 is sleeved on the small valve core 7.
As shown in fig. 1 to 3, the small valve core 7 includes a first guiding section 703, a sealing section 705 and a second guiding section 704 which are sequentially arranged, a first sealing surface is arranged on the sealing section 705, a second sealing surface which is in contact with the first sealing surface is arranged on the large valve core 6, the first sealing surface is a conical surface, and after the first sealing surface is in contact with the second sealing surface, the closing of the hydraulic control check valve is realized. The first guide section 703, the sealing section 705 and the second guide section 704 are coaxially and fixedly connected, the first guide section 703 and the second guide section 704 are cylinders, and the maximum outer diameter of the sealing section 705 is larger than the outer diameters of the first guide section 703 and the second guide section 704. The large valve core 6 is internally provided with a first central hole and a second central hole which are coaxially arranged, the first central hole and the second central hole are communicated, the diameter of the first central hole is smaller than that of the second central hole, the first guide section 703 is inserted into the first central hole, the sealing section 705 and the second guide section 704 are positioned in the second central hole, the diameter of the second central hole is larger than the outer diameters of the sealing section 705 and the second guide section 704, and the outer diameter of the first guide section 703 is identical to the diameter of the first central hole. The outer circular surface of the large valve core 6 is contacted with the inner circular surface of the valve sleeve 9, the valve sleeve 9 plays a guiding role on the large valve core 6, and the inner circular surface of the valve sleeve 9 is a cylindrical surface with a constant diameter along the axial direction. The outer circumferential surface of the first guide section 703 is a cylindrical surface with a constant diameter in the axial direction, and the outer diameter of the first guide section 703 is the same as the diameter of the first center hole. A first fluid passage is provided in the first guide section 703 for guiding the fluid in the fluid inlet jacket 4 to the valve housing 9.
As shown in fig. 2 and 3, the first liquid passing channel includes a first liquid passing hole 701 and a second liquid passing hole 702, the first liquid passing hole 701 is communicated with the inner cavity of the liquid inlet sleeve 4, and the second liquid passing hole 702 is communicated with the first liquid passing hole 701. The first liquid passing hole 701 extends from the end surface of the first guide section 703 facing the ejector rod 2 to the inside of the first guide section 703 in the axial direction of the first guide section 703, the first liquid passing hole 701 is a circular hole provided at the center of the first guide section 703, the second liquid passing hole 702 extends from the inner circular surface of the first liquid passing hole 701 to the outer circular surface of the first guide section 703, and the second liquid passing hole 702 extends in the radial direction of the first guide section 703. The plurality of second liquid through holes 702 are arranged, and all the second liquid through holes 702 are uniformly distributed along the circumferential direction by taking the axis of the first liquid through hole 701 as the center line.
As shown in fig. 2 to 4, the ejector rod 2 is provided with a second liquid passage for guiding the liquid in the liquid inlet sleeve 4 to the first liquid passage. The second liquid passing channel comprises a third liquid passing hole 201 and a fourth liquid passing hole 202, the third liquid passing hole 201 is communicated with the first liquid passing channel, and the fourth liquid passing hole 202 is communicated with the inner cavity of the liquid inlet sleeve 4. The third liquid through hole 201 extends from the end surface of the ejector rod 2 facing the small valve core 7 to the inside of the ejector rod 2 along the axial direction of the ejector rod 2, the third liquid through hole 201 is positioned at the center of the ejector rod 2, the third liquid through hole 201 and the first liquid through hole 701 are coaxially arranged, the fourth liquid through hole 202 extends from the inner circular surface of the third liquid through hole 201 to the outer circular surface of the ejector rod 2, and the fourth liquid through hole 202 extends along the radial direction of the ejector rod 2. The number of the fourth through holes 202 is plural, and all the fourth through holes 202 are uniformly distributed along the circumferential direction with the axis of the third through hole 201 as the center line.
The fourth liquid through hole 202 is used for guiding the liquid entering the inner cavity of the liquid inlet sleeve 4 into the third liquid through hole 201, after the end face of the ejector rod 2 is contacted with the small valve core 7, the small valve core 7 is pushed to move, the small valve core 7 is separated from the large valve core 6, the liquid in the third liquid through hole 201 enters the first liquid through hole 701, and then flows into the inner cavity of the valve sleeve 9 through the second liquid through hole 702. With this structure, there is no gap between the outer circular surface of the first guiding section 703 of the small valve core 7 and the inner circular surface of the large valve core 6, deflection does not occur in the moving process of the small valve core 7, lateral bending or pressure breaking of the first spring 8 is not easy to occur, reliability is improved, liquid inlet is uniform, and the small valve core 7 is easy to process.
As shown in fig. 2 and 3, one end of the first spring 8 is located in the inner cavity of the second guide section 704, and the other end of the first spring 8 is located in a positioning groove provided on the inner wall surface of the valve housing 9. The first spring 8 is a rectangular spring and is a compression spring, and under the same space condition, the rectangular section is larger than the rigidity of the spiral compression spring, the volume is small, the occupied space can be reduced, the hydraulic control one-way valve can be ensured to be closed in time, and the working reliability is improved.
The second guide section 704 is located in the second central hole of the large valve core 6, the length of the second guide section 704 is smaller than that of the second central hole, after the ejector rod 2 pushes the small valve core 7 to move to the limit position, the first spring 8 is in a compressed state, the length of the first spring 8 at the moment is smaller than that of the valve core space, the distance between the second guide section 704 and the inner wall surface of the valve sleeve 9 is smaller, and the first spring 8 cannot incline or be broken by compression.
As shown in fig. 2, the second spring 3 is used for applying an elastic force to the ejector rod 2 to move towards a position far away from the small valve core 7, the second spring 3 is clamped between a limiting surface arranged in the liquid inlet sleeve 4 and a step surface arranged on the ejector rod 2, the second spring 3 is a rectangular spring and is a compression spring, and under the same space condition, the rectangular section is larger than the spiral compression spring in rigidity, the volume is small, the occupied space can be reduced, the hydraulically-controlled check valve can be ensured to be closed in time, and the working reliability is improved.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (10)
1. The utility model provides a hydraulically controlled check valve, includes valve body and case subassembly, and the case subassembly includes ejector pin, feed liquor cover, valve pocket, big case, little case and is used for exerting the first spring of elastic force to little case, sets up first centre bore in the big case, and little case is including inserting the first guide section in the first centre bore, its characterized in that: the first guide section is a cylinder, the outer diameter of the first guide section is the same as the diameter of the first center hole, and a first liquid passage used for guiding liquid in the liquid inlet sleeve to the valve sleeve is arranged in the first guide section.
2. The hydraulically controlled one-way valve of claim 1, wherein: the first liquid passing channel comprises a first liquid passing hole and a second liquid passing hole, the first liquid passing hole is communicated with the inner cavity of the liquid inlet sleeve, and the second liquid passing hole is communicated with the first liquid passing hole.
3. The hydraulically controlled one-way valve of claim 2, wherein: the first liquid through hole extends along the axial direction of the first guide section, and the second liquid through hole extends from the inner circular surface of the first liquid through hole to the outer circular surface of the first guide section.
4. The hydraulically controlled one-way valve of claim 2, wherein: the second through holes are formed in a plurality of ways.
5. The hydraulically controlled check valve according to any one of claims 1 to 4, wherein: the ejector rod is provided with a second liquid passing channel for guiding the liquid in the liquid inlet sleeve to the first liquid passing channel.
6. The hydraulically controlled one-way valve of claim 5, wherein: the second liquid passage comprises a third liquid passage hole and a fourth liquid passage hole, the third liquid passage hole is communicated with the first liquid passage, and the fourth liquid passage hole is communicated with the inner cavity of the liquid inlet sleeve.
7. The hydraulically controlled one-way valve of claim 6, wherein: the third liquid through hole extends along the axial direction of the ejector rod, and the fourth liquid through hole extends from the inner circular surface of the third liquid through hole to the outer circular surface of the ejector rod.
8. The hydraulically controlled one-way valve of claim 6, wherein: the fourth through holes are formed in a plurality of mode.
9. The hydraulically controlled check valve according to any one of claims 1 to 4, wherein: the first spring is a rectangular spring.
10. The hydraulically controlled check valve according to any one of claims 1 to 4, wherein: and a second spring is sleeved on the ejector rod, and the second spring is a rectangular spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322805802.7U CN220869446U (en) | 2023-10-18 | 2023-10-18 | Hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322805802.7U CN220869446U (en) | 2023-10-18 | 2023-10-18 | Hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220869446U true CN220869446U (en) | 2024-04-30 |
Family
ID=90817458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322805802.7U Active CN220869446U (en) | 2023-10-18 | 2023-10-18 | Hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220869446U (en) |
-
2023
- 2023-10-18 CN CN202322805802.7U patent/CN220869446U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209110251U (en) | A kind of sawtooth pattern chip breaking drill gun | |
| CN220869446U (en) | Hydraulic control one-way valve | |
| CN206326552U (en) | A kind of elastic expansion pin erecting device | |
| CN221096582U (en) | Upright post hydraulic control one-way valve for hydraulic support | |
| CN210087274U (en) | Sand-flushing hydraulic cutting knife | |
| CN210623688U (en) | Air distribution device | |
| CN217462709U (en) | Push combined valve | |
| CN113323614B (en) | Hydraulic upper-impact impactor for coiled tubing and coiled tubing tool | |
| CN213954054U (en) | Mining hydraulic cylinder with structure changed and thrust increased | |
| CN216464352U (en) | Anti-rotation pin assembly tool | |
| CN217462211U (en) | Floating pressure bidirectional lock | |
| CN200940616Y (en) | Plunger hydraulic oil cylinder of braker | |
| CN215672133U (en) | Eccentric working barrel matched with throwing and fishing type gas lift valve | |
| CN111810741A (en) | Straight-through type gas injection priming device | |
| CN112303044A (en) | Pressurizing oil cylinder | |
| CN208288872U (en) | A kind of steel wire pier protective device | |
| CN220261172U (en) | Auxiliary device for perforating paper tube of sublance probe | |
| CN114961810A (en) | Floating pressure bidirectional lock | |
| CN218817285U (en) | Oil valve body of energy accumulator | |
| CN220770239U (en) | Pressure regulating valve | |
| CN211314721U (en) | Supporting oil cylinder of four-arm anchor rod machine for mine | |
| CN212251606U (en) | Straight-through type gas injection priming device | |
| CN213684733U (en) | Pressurizing oil cylinder | |
| CN217108360U (en) | Pressure regulating valve | |
| CN116551434A (en) | Pipe clamp for machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |