CN219932592U - Valve core of hydraulic valve - Google Patents

Abstract

The utility model discloses a valve core of a hydraulic valve, which relates to the technical field of engineering machinery and comprises a valve body, wherein an oil storage cavity is formed in the valve body, a valve core body is arranged in the oil storage cavity, a plurality of blocking blocks are fixedly connected to the valve core body, the blocking blocks are in sliding connection with the oil storage cavity, buffer cavities are arranged on two sides of the oil storage cavity, a sliding cavity is arranged on one side of the buffer cavity, a sliding block is slidingly connected to the inner part of the sliding cavity, a buffer block is fixedly connected to one side, adjacent to the buffer cavity, of the sliding block, outer connecting pipes are fixedly connected to two sides of the valve body, sliding grooves are formed in the outer connecting pipes, and sliding plates are slidingly connected to the inner parts of the sliding grooves; when the electromagnetic coil loses power, the external long rod can be inserted into the sliding grooves at two ends of the valve body, the long rod pushes the sliding plate to move in the sliding grooves, and the sliding plate drives the valve core body to move in the oil storage cavity through the transmission rod, so that the electromagnetic coil can also enable the valve body to work when losing power.

Description

Valve core of hydraulic valve

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a valve core of a hydraulic valve.

Background

In industrial automation components, hydraulic valve blocks are a common component. Force transmission is achieved by distributing the pressure of the oil circuit. The Chinese patent discloses a valve core and a hydraulic valve (issued publication No. CN 115076397A) of the hydraulic valve, which are commonly applied to a control oil path because of the advantages of convenient use, high operation accuracy and the like, the technology of the patent can open a groove extending along the inner part of the valve core body through the stepped end surface of the valve core body and open an injection hole penetrating through the circumferential outer surface of the valve core body on the side wall of the groove, the flow passage formed by the groove and the injection hole can confluence and boost hydraulic oil and form a larger jet angle, the inching characteristic when the hydraulic valve is switched on and the quick response when the hydraulic valve is switched on can be improved, thereby reducing the hydraulic force when the valve core moves, avoiding the problem that the hydraulic force is overlarge when the valve core of the hydraulic valve is switched on, so that the valve core inside the valve body cannot work when the electromagnetic coil is out of the hydraulic valve when the emergency is met, and therefore the whole hydraulic valve core cannot be used.

Disclosure of Invention

The utility model aims to provide a valve core of a hydraulic valve, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a hydraulic valve case, includes the valve body, the oil storage chamber has been seted up to the inside of valve body, the inside of oil storage chamber is provided with the case body, fixedly connected with blocks on the case body, block piece and oil storage chamber sliding connection, the both sides of oil storage chamber are provided with the cushion chamber, cushion chamber one side is provided with the sliding chamber, the inside sliding connection of sliding chamber has the sliding block, one side fixedly connected with cushion block adjacent with the cushion chamber of sliding block, valve body both sides fixedly connected with takeover, the sliding tray has been seted up to the inside of takeover outward, the inside sliding connection of sliding tray has the sliding plate, the both sides fixedly connected with transfer line of case body, the transfer line runs through cushion chamber and sliding tray and sliding plate fixed connection.

As still further aspects of the utility model: wherein, be provided with the circulation groove between the blocking piece, a plurality of hydraulic grooves have been seted up to the inside of valve body, and the hydraulic groove link up with the circulation groove mutually.

As still further aspects of the utility model: the outside fixedly connected with a plurality of transmission pipes of valve body, transmission pipe and hydraulic pressure groove link up with the circulation groove mutually.

As still further aspects of the utility model: wherein, the sliding block is fixedly connected with the buffer block on one side adjacent to the buffer cavity.

As still further aspects of the utility model: the buffer cavity is internally provided with a buffer spring and a limiting plate, the buffer spring is sleeved on the transmission rod, and the limiting plate is fixedly connected with the transmission rod.

As still further aspects of the utility model: the electromagnetic valve is characterized in that an electromagnetic coil is arranged in the valve body, a shielding ring is fixedly connected to the outer side of the valve body, a connecting port is fixedly connected to the outer side of the shielding ring, and the connecting port is electrically connected with the electromagnetic coil.

Compared with the prior art, the utility model has the beneficial effects that:

the electromagnetic coil in the valve body can generate magnetic force when working, so that the valve core body moves in the oil storage cavity, the blocking block on the valve core body and the hydraulic groove on the circulating groove are communicated or cut off, when the electromagnetic coil is in power failure, the external long rod can be inserted into the sliding grooves at two ends of the valve body, the long rod pushes the sliding plate to move in the sliding grooves, the sliding plate drives the valve core body to move in the oil storage cavity through the transmission rod, and therefore the valve body can work when the electromagnetic coil is in power failure.

Drawings

FIG. 1 is a schematic cross-sectional view of a valve body according to the present utility model;

FIG. 2 is a schematic diagram of the overall structure of the present utility model;

FIG. 3 is a schematic view of the valve core body structure of the present utility model;

the correspondence between the reference numerals and the component names in the drawings is as follows:

1. a valve body; 101. an oil storage chamber; 2. an outer connecting pipe; 201. a sliding groove; 202. a sliding plate; 3. a valve core body; 301. a blocking block; 302. a flow channel; 4. a buffer chamber; 401. a limiting plate; 402. a buffer spring; 5. a sliding chamber; 501. a sliding block; 502. a buffer block; 503. a transmission rod; 6. an electromagnetic coil; 7. a shielding ring; 701. a connection port; 8. a transfer tube.

Detailed Description

Please refer to fig. 1-3: the utility model provides a hydraulic valve case, including valve body 1, oil storage chamber 101 has been seted up to the inside of valve body 1, the inside of oil storage chamber 101 is provided with case body 3, fixedly connected with blocks 301 on the case body 3, block 301 and oil storage chamber 101 sliding connection, be the hydraulic pressure groove link up or cut off on block 301 and the circulation groove 302 on through case body 3, the both sides of oil storage chamber 101 are provided with buffer chamber 4, buffer chamber 4 one side is provided with sliding chamber 5, sliding connection has sliding block 501 in the inside of sliding chamber 5, sliding block 501 and the adjacent one side fixedly connected with buffer chamber 4 buffer block 502, external pipe 2 of valve body 1 both sides fixedly connected with, sliding groove 201 has been seted up in the inside of external pipe 2, sliding groove 201's inside sliding connection has sliding plate 202, sliding connection in case body 3's both sides fixedly connected with transfer line 503, when solenoid 6 loses electricity with sliding plate 202 through making external stock insert the inside of sliding groove 201 at 1 both ends, can make solenoid valve body 1 move in the inside through the sliding plate 202, can make solenoid valve body 1 move in the inside through the sliding plate 201, thereby can make solenoid valve body 1 move in the inside when losing electricity.

As shown in fig. 1, a circulation groove 302 is arranged between the blocking blocks 301, a plurality of hydraulic grooves are formed in the valve body 1, the hydraulic grooves are communicated with the circulation groove 302, a plurality of transmission pipes 8 are fixedly connected to the outer side of the valve body 1, the transmission pipes 8 are communicated with the hydraulic grooves and the circulation groove 302, hydraulic oil can be injected into the oil storage cavity 101 through the transmission pipes 8, a buffer spring 402 and a limiting plate 401 are arranged in the buffer cavity 4, the buffer spring 402 is sleeved on a transmission rod 503, the limiting plate 401 is fixedly connected with the transmission rod 503, the buffer spring 402 and the limiting plate 401 are matched to buffer the sliding block 501, and damage to the sliding cavity 5 caused by overlarge impact force generated by the sliding block 501 and the sliding cavity 5 is avoided.

As shown in fig. 1 and 2, an electromagnetic coil 6 is disposed in the valve body 1, a shielding ring 7 is fixedly connected to the outer side of the valve body 1, a connection port 701 is fixedly connected to the outer side of the shielding ring 7, the connection port 701 is electrically connected to the electromagnetic coil 6, the connection port 701 can be connected to an external power supply and a PLC, and power and driving signals are provided to the electromagnetic coil 6.

Working principle: the electromagnetic coil 6 in the valve body 1 can generate magnetic force when working, the generated magnetic force can drive the sliding block 501 to move in the sliding cavity 5, the sliding block 501 can enable the valve core body 3 to move in the oil storage cavity 101 through the transmission rod 503 when moving, the blocking block 301 on the valve core body 3 and the hydraulic groove on the circulating groove 302 are communicated or cut off (the prior structure is not described in detail above), when the electromagnetic coil 6 is powered off, the external long rod can be inserted into the sliding groove 201 at two ends of the valve body 1, the sliding plate 202 is pushed to move in the sliding groove 201 through the long rod, the sliding plate 202 drives the valve core body 3 to move in the oil storage cavity 101 through the transmission rod 503, so that the electromagnetic coil 6 can also enable the valve body 1 to work when power is lost, the buffer spring 402 and the limiting plate 401 are arranged to buffer the sliding block 501, and damage to the sliding cavity 5 caused by overlarge impact force generated between the sliding block 501 and the sliding cavity 5 is avoided.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a hydraulic valve case, includes valve body (1), its characterized in that, oil storage chamber (101) have been seted up to the inside of valve body (1), the inside of oil storage chamber (101) is provided with case body (3), fixedly connected with block (301) on case body (3), block (301) and oil storage chamber (101) sliding connection, the both sides of oil storage chamber (101) are provided with cushion chamber (4), cushion chamber (4) one side is provided with sliding chamber (5), sliding connection has sliding block (501) in the inside of sliding chamber (5), valve body (1) both sides fixedly connected with external pipe (2), sliding groove (201) have been seted up to the inside of external pipe (2), sliding connection has sliding plate (202) in sliding groove (201), both sides fixedly connected with transfer line (503) of case body (3), transfer line (503) run through cushion chamber (4) and sliding chamber (5) and sliding groove (201) and sliding plate (202) fixed connection.

2. The hydraulic valve core according to claim 1, characterized in that a flow channel (302) is provided between the blocking blocks (301), a plurality of hydraulic channels are provided in the valve body (1), and the hydraulic channels are communicated with the flow channel (302).

3. The hydraulic valve core according to claim 2, characterized in that the outer side of the valve body (1) is fixedly connected with a plurality of transmission pipes (8), and the transmission pipes (8) are communicated with the hydraulic groove and the circulation groove (302).

4. The hydraulic valve core according to claim 1, characterized in that a buffer block (502) is fixedly connected to a side of the sliding block (501) adjacent to the buffer chamber (4).

5. The hydraulic valve core according to claim 1, characterized in that a buffer spring (402) and a limiting plate (401) are arranged in the buffer cavity (4), the buffer spring (402) is sleeved on the transmission rod (503), and the limiting plate (401) is fixedly connected with the transmission rod (503).

6. The hydraulic valve core according to claim 1, characterized in that an electromagnetic coil (6) is arranged in the valve body (1), a shielding ring (7) is fixedly connected to the outer side of the valve body (1), a connecting port (701) is fixedly connected to the outer side of the shielding ring (7), and the connecting port (701) is electrically connected with the electromagnetic coil (6).