CN219796195U

CN219796195U - Reciprocating valve

Info

Publication number: CN219796195U
Application number: CN202320846181.4U
Authority: CN
Inventors: 陆林海; 王澄; 曾祥旭
Original assignee: Shanghai Shangwei Machinery Technology Co ltd
Current assignee: Shanghai Shangwei Machinery Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-10-03
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a reciprocating valve, which relates to the technical field of valves and comprises a valve body, wherein two overflow valves are arranged on two sides of the top of the valve body, an adjusting and pulling mechanism is arranged on each overflow valve, the adjusting and pulling mechanism comprises an adjusting nut, an adjusting screw is connected with the adjusting nut in a threaded manner, an adjusting head is arranged at the bottom of the adjusting screw, a first spring is arranged at the bottom of the adjusting head, a valve core is arranged at the bottom of the first spring, and through holes are formed in the adjusting screw and the adjusting head. According to the reciprocating valve, the first pushing block can be pushed by pressing the second pushing block downwards, then the two first pushing blocks are pushed simultaneously, the clamping rod is pulled out of the clamping groove, the pulling block is pulled continuously, the pulling block moves to drive the valve core to move, the bonding condition of the valve core is checked regularly, the valve core is separated from the sealing ring, and accordingly the valve core can be prevented from being bonded, and the stability and safety of use are improved effectively.

Description

Reciprocating valve

Technical Field

The utility model relates to the technical field of valves, in particular to a reciprocating valve.

Background

The reciprocating valve is a reversing valve, the reversing valve is a directional control valve with more than two flowing modes and more than two oil ports, is a valve for realizing communication, cutting-off and reversing of hydraulic oil flow and pressure unloading and sequential action control, and is a directional control valve which depends on the relative movement of a valve core and a valve body.

For example, patent publication number CN214578011U, specifically, a hydraulic automatic reciprocating valve, the reciprocating valve includes a valve body, an end cover, a valve core, a pushing mechanism and a safety overflow valve, a cavity is provided in the valve body, and an oil inlet/outlet communicating with the cavity is provided on the valve body; the two end covers are respectively arranged at the left end and the right end of the valve body; the valve core is movably arranged in the cavity of the valve body; the pushing mechanism is arranged in the end cover and used for pushing the valve core to move left and right in the cavity; according to the reciprocating valve, the left end and the right end of the valve body are respectively provided with the end covers, so that the valve core only moves left and right in the cavity, abrasion caused by the fact that the valve core is exposed outside the valve body is avoided, the pushing mechanism arranged on the end covers correspondingly operates the pushing mechanism at the left end and the right end to enable the valve core to move in opposite directions when the valve core moves left and right in the cavity at certain intervals, the purpose of changing the flowing direction of fluid is achieved, the safety overflow valve can ensure that accidents caused by overhigh pressure of a system are avoided, the overflow valve core on the reversing valve is easy to adhere to the sealing ring for a long time, preset pressure is increased, the valve core is difficult to push to move by the original pressure, and the stability and the safety of use are not ideal.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the reciprocating valve, and solves the problems that the valve core of the overflow valve on the reversing valve is easy to be bonded with the sealing ring for a long time, so that the preset pressure is increased, the valve core is difficult to be pushed to move by the original pressure, and the stability and the safety of the use are not ideal.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the reciprocating valve comprises a valve body, two overflow valves are arranged on two sides of the top of the valve body, and each overflow valve is provided with an adjusting and pulling mechanism;

the adjusting and pulling mechanism comprises an adjusting nut, an adjusting screw is connected to the inner threads of the adjusting nut, an adjusting head is arranged at the bottom of the adjusting screw, a first spring is arranged at the bottom of the adjusting head, a valve core is arranged at the bottom of the first spring, through holes are formed in the adjusting screw and the adjusting head, two clamping grooves are formed in the top surface of the adjusting screw, a pulling block is arranged at the top of the adjusting screw, a connecting rope is fixedly connected to the bottom end of the pulling block, first pushing blocks are fixedly connected to the two sides of the pulling block in a sliding mode, clamping rods are fixedly connected to the bottom ends of the first pushing blocks, limiting blocks are fixedly connected to the ends of the first pushing blocks, a second spring is arranged between the clamping rods and the inner walls of the pulling blocks, a second pushing block is connected to the middle portion of the pulling block in a sliding mode, a third spring is arranged between the second pushing block and the inner walls of the pulling block, and movable grooves are formed in the second pushing block.

Preferably, the adjusting nut is fixedly arranged on the overflow valve, and the adjusting screw is in threaded connection with the overflow valve through the adjusting nut.

Preferably, the connecting rope passes through the through hole, and two ends of the connecting rope are fixedly connected with the valve core and the pulling block respectively.

Preferably, the ends of the two first pushing blocks penetrate through the pulling block and extend to the outside, the two first pushing blocks are in sliding connection with the pulling block, and the limiting block is matched with the movable groove.

Preferably, the top end of the second pushing block penetrates through the pulling block and extends to the outside, and the second pushing block is arranged between the two first pushing blocks.

Preferably, the clamping rod is matched with the clamping groove, and the pulling block is clamped with the adjusting screw rod through the clamping rod and the clamping groove.

Preferably, the valve body includes two first assembling portions and two second assembling portions, and the two first assembling portions are disposed at two sides of the second assembling portion.

Preferably, a plurality of connecting holes are formed in the upper side surface of the two first assembling parts, and connecting bolts are arranged in the connecting holes.

Advantageous effects

The utility model provides a shuttle valve. Compared with the prior art, the method has the following beneficial effects:

1. according to the reciprocating valve, the first pushing block can be pushed by pressing the second pushing block downwards, then the two first pushing blocks are pushed simultaneously, the clamping rod is pulled out of the clamping groove, the pulling block is pulled continuously, the pulling block moves to drive the valve core to move, the bonding condition of the valve core is checked regularly, the valve core is separated from the sealing ring, and accordingly the valve core can be prevented from being bonded, and the stability and safety of use are improved effectively.

2. This reciprocating valve through putting two first equipment portions in second equipment portion both sides then with connecting bolt screw in the connecting hole to can conveniently overhaul the valve body, improve the convenience of overhaul.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the adjusting and pulling mechanism of the present utility model;

FIG. 3 is a schematic view of the connection structure between the pulling block and the adjusting screw of the present utility model;

fig. 4 is a schematic diagram of a connection structure between a first push block and a second push block according to the present utility model.

In the figure: 1. a valve body; 101. a first assembly part; 102. a second assembly part; 103. a connection hole; 104. a connecting bolt; 2. adjusting the pulling mechanism; 201. adjusting a screw; 202. a through hole; 203. a clamping groove; 204. a valve core; 205. a connecting rope; 206. pulling the block; 207. a first spring; 208. adjusting the head; 209. an adjusting nut; 210. a second push block; 211. a movable groove; 212. a third spring; 213. a first push block; 214. a clamping rod; 215. a second spring; 216. a limiting block; 3. and an overflow valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-4, the present utility model provides a technical solution: the reciprocating valve comprises a valve body 1, the structure for realizing fluid reversing belongs to the mature technology in the field, so that repeated description is omitted, two overflow valves 3 are arranged on two sides of the top of the valve body 1, an adjusting and pulling mechanism 2 is arranged on each overflow valve 3, the preset pressure is adjusted through the adjusting and pulling mechanism 2, meanwhile, workers can regularly pull and check a valve core 204, the valve core 204 is prevented from being bonded, and the use stability and safety are effectively improved.

The adjusting and pulling mechanism 2 comprises an adjusting nut 209, an adjusting screw 201 is connected with the adjusting nut 209 in an internal thread manner, the adjusting nut 209 is fixedly arranged on the overflow valve 3, the adjusting screw 201 is in threaded connection with the overflow valve 3 through the adjusting nut 209, an adjusting head 208 is arranged at the bottom of the adjusting screw 201, the adjusting screw 201 can be rotated to rotate to match the adjusting nut 209 to push the adjusting head 208 to move, a first spring 207 is compressed, so that preset pressure can be adjusted, the bottom of the adjusting head 208 is provided with the first spring 207, the bottom of the first spring 207 is provided with a valve core 204, through holes 202 are formed in the adjusting screw 201 and the adjusting head 208, two clamping grooves 203 are formed in the top surface of the adjusting screw 201, a pulling block 206 is arranged at the top of the adjusting screw 201, a connecting rope 205 is fixedly connected to the bottom of the pulling block 206, the connecting rope 205 passes through the through holes 202, two ends of the connecting rope 205 are respectively fixedly connected with the valve core 204 and the pulling block 206, the valve core 204 can be driven to move by pulling the pulling block 206, the two sides of the pulling block 206 are both connected with a first pushing block 213 in a sliding way, the bottom end of the first pushing block 213 is fixedly connected with a clamping rod 214, the clamping rod 214 is matched with the clamping groove 203, the clamping rod 214 can enter the clamping groove 203 for clamping and fixing, the pulling block 206 is clamped with the adjusting screw 201 through the clamping rod 214 and the clamping groove 203, the end parts of the first pushing block 213 are fixedly connected with a limiting block 216, the end parts of the two first pushing blocks 213 penetrate through the pulling block 206 and extend to the outside, the two first pushing blocks 213 are connected with the pulling block 206 in a sliding way, the limiting block 216 is matched with the movable groove 211, a second spring 215 is arranged between the clamping rod 214 and the inner wall of the pulling block 206, the first pushing block 213 and the clamping rod 214 can be reset, the central part of the pulling block 206 is connected with a second pushing block 210 in a sliding way, the top end part of the second pushing block 210 penetrates the pulling block 206 and extends to the outside, and the second push block 210 is arranged between the two first push blocks 213, a third spring 212 is arranged between the second push block 210 and the inner wall of the pull block 206, the second push block 210 can be reset, a movable groove 211 is formed in the second push block 210, the second push block 210 can be pushed downwards firstly, a limiting block 216 on the first push block 213 is aligned with the movable groove 211, the first push block 213 can push, then the two first push blocks 213 are pushed simultaneously, the two first push blocks 213 move to drive a clamping rod 214 to move, the clamping rod 214 is separated from the clamping groove 203, the clamping rod 214 is pulled out of the clamping groove 203, the pull block 206 is pulled continuously, the pull block 206 moves to drive a connecting rope 205 to move, the connecting rope 205 moves to drive a valve core 204 to move, the bonding condition of the valve core 204 is checked regularly, and the valve core 204 is separated from a sealing ring, so that the bonding of the valve core 204 can be prevented, and the stability and safety of use are effectively improved.

Referring to fig. 1, a valve body 1 includes two first assembling portions 101 and a second assembling portion 102, the two first assembling portions 101 are disposed on two sides of the second assembling portion 102, a plurality of connecting holes 103 are formed on one side surface of the two first assembling portions 101, connecting bolts 104 are disposed inside the plurality of connecting holes 103, and the two first assembling portions 101 are disposed on two sides of the second assembling portion 102 and then screwed into the connecting holes 103, so that the valve body 1 can be conveniently overhauled, and convenience in overhauling is improved.

During operation, the second push block 210 is pushed downwards firstly, so that the limiting block 216 on the first push block 213 is aligned with the movable groove 211, the first push block 213 can push, then the two first push blocks 213 are pushed simultaneously, the two first push blocks 213 move to drive the clamping rod 214 to move, the clamping rod 214 is separated from the clamping groove 203, the clamping rod 214 is pulled out of the clamping groove 203, the pulling block 206 is pulled continuously, the pulling block 206 moves to drive the connecting rope 205 to move, the connecting rope 205 moves to drive the valve core 204 to move, the bonding condition of the valve core 204 is checked regularly, and the valve core 204 is separated from the sealing ring, so that the bonding of the valve core 204 can be prevented, and the stability and safety of use are improved effectively;

after the inspection is completed, the second push block 210 and the first push block 213 are released, the second spring 215 and the third spring 212 reset the second push block and the third push block, then the clamping rod 214 is aligned with the clamping groove 203, the pulling block 206 is pushed downwards, and the pulling block 206 is fixed on the adjusting screw 201 again.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. Reciprocating valve, including valve body (1), its characterized in that: two overflow valves (3) are arranged on two sides of the top of the valve body (1), and an adjusting and pulling mechanism (2) is arranged on each overflow valve (3);

the utility model provides an adjust pulling mechanism (2) including adjusting nut (209), adjusting nut (209) inside threaded connection has adjusting screw (201), adjusting screw (201) bottom is equipped with adjustment head (208), adjustment head (208) bottom is equipped with first spring (207), first spring (207) bottom is equipped with case (204), through-hole (202) have been seted up to adjusting screw (201) and adjustment head (208) inside, two draw-in grooves (203) have been seted up on adjusting screw (201) top, adjusting screw (201) top is equipped with pulling block (206), pulling block (206) bottom fixedly connected with connecting rope (205), pulling block (206) both sides all sliding connection have first ejector pad (213), first ejector pad (213) bottom fixedly connected with draw-in bar (214), first ejector pad (213) tip fixedly connected with stopper (216), be equipped with second spring (215) between draw-in bar (214) and pulling block (206) inner wall, pulling block (206) central part sliding connection has two draw-in grooves (203), second ejector pad (210) have second ejector pad (210), second ejector pad (210) sliding connection with second ejector pad (212) have between the second ejector pad (210).

2. The shuttle valve according to claim 1 wherein: the adjusting nut (209) is fixedly arranged on the overflow valve (3), and the adjusting screw (201) is in threaded connection with the overflow valve (3) through the adjusting nut (209).

3. The shuttle valve according to claim 1 wherein: the connecting rope (205) passes through the through hole (202), and two ends of the connecting rope (205) are fixedly connected with the valve core (204) and the pulling block (206) respectively.

4. The shuttle valve according to claim 1 wherein: the ends of the two first pushing blocks (213) penetrate through the pulling block (206) and extend to the outside, the two first pushing blocks (213) are in sliding connection with the pulling block (206), and the limiting block (216) is matched with the movable groove (211).

5. The shuttle valve according to claim 1 wherein: the top end of the second pushing block (210) penetrates through the pulling block (206) and extends to the outside, and the second pushing block (210) is arranged between the two first pushing blocks (213).

6. The shuttle valve according to claim 1 wherein: the clamping rod (214) is matched with the clamping groove (203), and the pulling block (206) is clamped with the adjusting screw (201) through the clamping rod (214) and the clamping groove (203).

7. The shuttle valve according to claim 1 wherein: the valve body (1) comprises two first assembling parts (101) and two second assembling parts (102), and the two first assembling parts (101) are arranged on two sides of the second assembling parts (102).

8. The shuttle valve as claimed in claim 7, wherein: a plurality of connecting holes (103) are formed in the upper side surfaces of the two first assembly parts (101), and connecting bolts (104) are arranged in the connecting holes (103).