CN217080938U - Throttling buffer valve for hydraulic control multi-way valve - Google Patents
Throttling buffer valve for hydraulic control multi-way valve Download PDFInfo
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- CN217080938U CN217080938U CN202121267892.3U CN202121267892U CN217080938U CN 217080938 U CN217080938 U CN 217080938U CN 202121267892 U CN202121267892 U CN 202121267892U CN 217080938 U CN217080938 U CN 217080938U
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Abstract
The utility model discloses a throttle cushion valve for hydraulic control multi-way valve, a serial communication port, which comprises a valve body, be equipped with the step through-hole that runs through the valve body both ends in the valve body, be equipped with the cushion valve core that can follow step through-hole axis direction and remove in the step through-hole, still be equipped with the disk seat that is used for restricting the cushion valve core position in the step through-hole, be equipped with the through-hole in the disk seat, the outside of cushion valve core is equipped with the clearance with the inner wall of step through-hole, the one end of keeping away from the disk seat on the cushion valve core is equipped with and makes clearance and the communicating passageway of step through-hole, the biggest external diameter that is close to disk seat one end on the cushion valve core is greater than the internal diameter of through-hole in the disk seat, be close to disk seat one end on the cushion valve core and be equipped with and make clearance and the communicating throttle recess of through-hole in the disk seat. The utility model discloses a reliability is high, compact structure, equipment are simple and convenient, the dismouting is maintained conveniently, has the good characteristics of job stabilization nature simultaneously to solved the big problem of liquid accuse multiple unit valve switching-over impact, improved system job stabilization nature.
Description
Technical Field
The utility model relates to a throttle buffer valve for hydraulic control multi-way valve belongs to hydraulic means technical field.
Background
The hydraulic valve is mainly used for controlling the flow direction and the flow quantity of working oil in a hydraulic system, the realization of the function of the whole hydraulic system and the stability and the reliability of the operation are ensured, and the flow direction and the flow quantity of the working oil are adjusted by operating the working position of the hydraulic valve rod. The impact of starting and stopping the valve rod during reversing can occur, so that the system is unstable in operation; in order to reduce such shock and to enable the hydraulic system to operate smoothly and reliably, it is necessary for the pilot-controlled multi-way valve to have a throttling and buffering function.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the problem of large reversing impact of the hydraulic control multi-way valve is solved.
In order to solve the technical problem, the technical scheme of the utility model provides a throttle cushion valve for hydraulic control multi-way valve, a serial communication port, the water-saving valve comprises a valve body, be equipped with the step through-hole that runs through the valve body both ends in the valve body, be equipped with the cushion valve core that can follow step through-hole axis direction and remove in the step through-hole, still be equipped with the disk seat that is used for restricting the cushion valve core position in the step through-hole, be equipped with the through-hole in the disk seat, the outside of cushion valve core is equipped with the clearance with the inner wall of step through-hole, the one end of keeping away from the disk seat on the cushion valve core is equipped with makes clearance and the communicating passageway of step through-hole, the biggest external diameter that is close to disk seat one end on the cushion valve core is greater than the internal diameter of through-hole in the disk seat, it is equipped with and makes the communicating throttle recess of through-hole in clearance and the disk seat to be close to disk seat one end on the cushion valve core.
Preferably, when one end of the buffer valve core close to the valve seat contacts with the valve seat, the end of the buffer valve core blocks the through hole on the valve seat, and the buffer valve core is communicated with the valve seat through the throttling groove on the buffer valve core; when one end of the buffer valve core, which is far away from the valve seat, is contacted with one step on the step through hole, a passage is formed between the outer side of the end part of the buffer valve core and the step through hole.
Preferably, the channel on the buffer valve core comprises an axial blind hole, the axial blind hole is positioned at one end, far away from the valve seat, of the buffer valve core, a radial through hole communicated with the gap is formed in the side face of the buffer valve core, and the axial blind hole is communicated with the radial through hole.
Preferably, a chamfer angle for sealing is arranged at one end of the buffer valve core, which is contacted with the valve seat, and a throttling groove is arranged on the buffer valve core along the chamfer angle direction.
Preferably, the cross section of the throttling groove is of a V-shaped structure; the shape of the position of the buffer valve core in the step through hole is matched with that of the buffer valve core.
Preferably, the step through hole include first screw hole, first screw hole is located in the one end of valve body, the other end outside of valve body is equipped with the external screw thread, be equipped with along the external screw thread root on the valve body and make the sealed sealing washer between valve body and the pilot-controlled multi-way valve control mouth.
Preferably, the step through hole further comprises a first step through hole and a second step through hole, one end of the first threaded hole is connected with one end of the first step through hole, far away from the first threaded hole, is connected with one end of the second threaded hole, the second threaded hole is matched with the valve seat, one end of the second threaded hole, far away from the first threaded hole, is connected with the second step through hole, the buffer valve core is arranged in one section of through hole in the second step through hole, one end of the buffer valve core is propped against the other section of through hole in the second step through hole, the buffer valve core can move between the valve seat and the second step through hole, and the second step through hole is communicated with the other end of the valve body; the buffer valve core is in clearance fit with the second step through hole in the valve body.
Preferably, the central axes of the first threaded hole, the first step through hole, the second threaded hole, the second step through hole and the buffer valve core are all overlapped.
Preferably, the valve body on keep away from the one end appearance of liquid accuse multichannel valve control mouth for the hexagonal structure, the one end of cylindrical boss is connected to the one end of hexagonal structure, the external screw thread boss that diameter is less than cylindrical boss diameter is connected to the other end of cylindrical boss, be equipped with the recess that blocks the sealing washer on the cylindrical boss's the terminal surface that is close to the external screw thread boss.
Preferably, the through hole in the valve seat comprises a counter bore and a third step through hole, the end face, far away from the buffer valve core, of the valve seat is provided with the counter bore, the end face, close to the buffer valve core, of the valve seat is provided with the third step through hole, and the counter bore is communicated with the third step through hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a reliability is high, compact structure, equipment are simple and convenient, the dismouting is maintained conveniently, has the good characteristics of job stabilization nature simultaneously, through the automatic switch that drives buffer valve core of the flow direction of fluid, realizes the control of the fluid velocity of flow to solved the big problem of liquid accuse multiple unit valve switching-over impact, improved system job stabilization nature.
Drawings
FIG. 1 is a schematic view of a throttling cushion valve for a hydraulically controlled multi-way valve.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model provides a throttle cushion valve for hydraulic control multi-way valve, as shown in figure 1, it includes buffer valve core 1, O shape circle 2, disk seat 3 and hexagonal valve body 4, be equipped with in one end of valve body 4 and contain the first screw hole 7 of internal screw thread, 7 one end of first screw hole is equipped with first step through-hole 5, the one end that first screw hole 7 was kept away from to first step through-hole 5 is equipped with second screw hole 8, the one end that first screw hole 7 was kept away from to second screw hole 8 is equipped with second step through-hole 6, be equipped with buffer valve core 1 in the second step through-hole 6, buffer valve core 1 is located in the festival through-hole in second step through-hole 6, and buffer valve core 1's one end top is on another festival through-hole in second step through-hole 6, second step through-hole 6 switches on valve body 4's the other end. Be equipped with disk seat 3 in the second screw hole 8, second screw hole 8 and 3 accordant connection of disk seat, buffer valve core 1 can move about between disk seat 3 and second step through-hole 6, be equipped with hexagonal counter bore 31 on the terminal surface of keeping away from buffer valve core 1 on disk seat 3, be equipped with third step through-hole 32 on the terminal surface that is close to buffer valve core 1 on disk seat 3, counter bore 31 communicates with each other with third step through-hole 32, the other end outside of valve body 4 (the external screw thread boss 43 outside promptly) is equipped with the external screw thread, be equipped with sealing washer 2 along the external screw thread root on the valve body 4.
The appearance of one end of the valve body 4 close to the first threaded hole 7 is a hexagonal structure 41, one end of the hexagonal structure 41 is connected with one end of a cylindrical boss 42, the other end of the cylindrical boss 42 is connected with an external thread boss 43 with the diameter smaller than that of the cylindrical boss 42, and a groove for clamping the sealing ring 2 is formed in the end face of the cylindrical boss 42 close to the external thread boss 43. Wherein, the central axes of the first threaded hole 7, the first step through hole 5, the second threaded hole 8, the second step through hole 6 and the buffer valve core 1 are all overlapped.
The buffer valve core 1 is provided with a chamfer angle for sealing at one end contacting with the valve seat 3, the buffer valve core 1 is provided with a throttling groove 11 along the chamfer angle direction, the other end of the buffer valve core 1 is provided with an axial blind hole 13, a cylindrical surface at the side surface of the buffer valve core 1 is provided with a radial through hole 12, and the axial blind hole 13 is communicated with the radial through hole 12. The buffer valve core 1 is in clearance fit with the second step through hole 6 in the valve body 4. The cross section of the throttling groove 11 is in a V-shaped structure. The cross section of the second stepped through hole 6 is circular.
The utility model discloses a work use as follows:
during the assembly, during buffer valve core 1 packs into the inside second step through-hole 6 of valve body 4, buffer valve core 1 is clearance fit with the inside second step through-hole 6 of valve body 4, disk seat 3 packs into the inside second screw hole 8 of valve body 4 through threaded connection, with the end face contact of the inside second step through-hole 6 of valve body 4 and tight, during the hydraulic control multiple unit valve control mouth is packed into to the external threaded connection that valve body 4 passes through the external screw thread boss 43 outside, and sticiss sealing washer 2 that contracts, thereby play sealed effect.
When oil flows from A to B, the buffer valve core 1 moves to the B side, a passage between the buffer valve core 1 and the valve seat 3 is opened, and the oil flows to B in a large flow; when oil flows to the A from the B, the buffer valve core 1 moves to the A side, a passage between the buffer valve core 1 and the valve seat 3 is closed, and the oil flows to the A through the throttling groove 11 on the buffer valve core 1, so that the throttling buffer effect is realized.
Claims (10)
1. The throttling buffer valve for the hydraulic control multi-way valve is characterized by comprising a valve body (4), a step through hole penetrating through two ends of the valve body (4) is formed in the valve body (4), a buffer valve core (1) capable of moving along the axis direction of the step through hole is arranged in the step through hole, a valve seat (3) used for limiting the position of the buffer valve core (1) is further arranged in the step through hole, a through hole is formed in the valve seat (3), a gap is formed between the outer side of the buffer valve core (1) and the inner wall of the step through hole, a channel enabling the gap to be communicated with the step through hole is formed in one end, far away from the valve seat (3), of the buffer valve core (1), the maximum outer diameter, close to one end of the valve seat (3), of the buffer valve core (1) is larger than the inner diameter of the through hole in the valve seat (3), and a throttling groove (11) enabling the gap to be communicated with the through hole in the valve seat (3) is formed in one end, close to the valve seat (3).
2. The throttling cushion valve for the hydraulic control multi-way valve according to claim 1, characterized in that when one end of the cushion valve core (1) close to the valve seat (3) is contacted with the valve seat (3), the end of the cushion valve core (1) blocks the through hole on the valve seat (3), and the cushion valve core (1) is communicated with the valve seat (3) through the throttling groove (11) on the cushion valve core (1); when one end of the buffer valve core (1) far away from the valve seat (3) is contacted with one step on the step through hole, a passage is formed between the outer side of the end part of the buffer valve core (1) and the step through hole.
3. The throttling cushion valve for the hydraulic control multi-way valve according to claim 1, characterized in that the channel on the cushion valve core (1) comprises an axial blind hole (13), the axial blind hole (13) is positioned at one end of the cushion valve core (1) far away from the valve seat (3), a radial through hole (12) communicated with the clearance is arranged on the side surface of the cushion valve core (1), and the axial blind hole (13) is communicated with the radial through hole (12).
4. The throttling cushion valve for the hydraulic control multi-way valve according to claim 1, characterized in that, the cushion valve core (1) is provided with a chamfer for sealing at one end contacting with the valve seat (3), and the cushion valve core (1) is provided with a throttling groove (11) along the chamfer direction.
5. The throttling cushion valve for the hydraulic control multi-way valve as claimed in claim 1, characterized in that the cross section of the throttling groove (11) is of a V-shaped structure; the shape of the position of the buffer valve core (1) in the step through hole is matched with that of the buffer valve core (1).
6. The throttling cushion valve for the hydraulic control multi-way valve as claimed in claim 1, wherein the step through hole comprises a first threaded hole (7), the first threaded hole (7) is arranged in one end of the valve body (4), an external thread is arranged on the outer side of the other end of the valve body (4), and a sealing ring (2) which enables the valve body (4) to be sealed with the control port of the hydraulic control multi-way valve is arranged on the valve body (4) along the root of the external thread.
7. The throttling cushion valve for the hydraulic control multi-way valve according to claim 6, characterized in that the step through hole further comprises a first step through hole (5) and a second step through hole (6), one end of the first threaded hole (7) is connected with one end of the first step through hole (5), one end of the first step through hole (5) far away from the first threaded hole (7) is connected with one end of the second threaded hole (8), the second threaded hole (8) is matched with the valve seat (3), one end of the second threaded hole (8) far away from the first threaded hole (7) is connected with the second step through hole (6), the cushion valve core (1) is arranged in one of the second step through holes (6), one end of the cushion valve core (1) is abutted against the other one of the second step through holes (6), and the cushion valve core (1) can move between the valve seat (3) and the second step through hole (6), the second step through hole (6) is communicated with the other end of the valve body (4); the buffer valve core (1) is in clearance fit with the second step through hole (6) in the valve body (4).
8. The throttling cushion valve for the hydraulic control multi-way valve as claimed in claim 7, characterized in that the central axes of the first threaded hole (7), the first step through hole (5), the second threaded hole (8), the second step through hole (6) and the cushion valve core (1) are all coincident.
9. The throttling cushion valve for the hydraulic control multi-way valve according to claim 6, characterized in that, the appearance of one end of the valve body (4) far away from the control opening of the hydraulic control multi-way valve is a hexagonal structure (41), one end of the hexagonal structure (41) is connected with one end of a cylindrical boss (42), the other end of the cylindrical boss (42) is connected with an external thread boss (43) with the diameter smaller than that of the cylindrical boss (42), and a groove for clamping the sealing ring (2) is arranged on the end surface of the cylindrical boss (42) close to the external thread boss (43).
10. The throttling cushion valve for the hydraulic control multi-way valve according to claim 1, characterized in that the through holes in the valve seat (3) comprise a counter bore (31) and a third step through hole (32), the end face of the valve seat (3) far away from the cushion valve core (1) is provided with the counter bore (31), the end face of the valve seat (3) close to the cushion valve core (1) is provided with the third step through hole (32), and the counter bore (31) is communicated with the third step through hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121267892.3U CN217080938U (en) | 2021-06-07 | 2021-06-07 | Throttling buffer valve for hydraulic control multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121267892.3U CN217080938U (en) | 2021-06-07 | 2021-06-07 | Throttling buffer valve for hydraulic control multi-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080938U true CN217080938U (en) | 2022-07-29 |
Family
ID=82498482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121267892.3U Active CN217080938U (en) | 2021-06-07 | 2021-06-07 | Throttling buffer valve for hydraulic control multi-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080938U (en) |
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2021
- 2021-06-07 CN CN202121267892.3U patent/CN217080938U/en active Active
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