CN216867123U

CN216867123U - Hydraulic valve with explosion-proof function

Info

Publication number: CN216867123U
Application number: CN202123060076.8U
Authority: CN
Inventors: 游继志; 韦鹏
Original assignee: Shanghai Yanshang Hydraulic Equipment Co ltd
Current assignee: Shanghai Yanshang Hydraulic Equipment Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-07-01
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a hydraulic valve with an explosion-proof function, which comprises a valve body, a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is arranged on one side of the valve body, a pressure release structure is arranged at the top of the liquid inlet pipe, a filtering sleeve is arranged at one end inside the liquid inlet pipe, a connecting pipe is arranged at one end of the liquid inlet pipe, a blocking piece is arranged inside the connecting pipe, the liquid outlet pipe is arranged on the other side of the valve body, a pressure dividing pipe is arranged at the other side of the valve body, which is close to the bottom of the liquid outlet pipe, and a control oil passage is arranged at the bottom inside the valve body. According to the utility model, through the pressure release structure, when the water pressure of liquid flowing into the liquid inlet pipe is too high, the liquid can impact the abutting block upwards to enable the abutting block to move upwards and extrude the first spring upwards, so that a part of the liquid flows out of the pressure relief pipe to play a role of partial pressure, and after the water pressure is normal, the first spring resets to push the abutting block to block the pressure relief pipe, so that the valve body is prevented from bursting due to the too high water pressure.

Description

Hydraulic valve with explosion-proof function

Technical Field

The utility model relates to the field of hydraulic valves, in particular to a hydraulic valve with an explosion-proof function.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of a distribution valve, is usually combined with an electromagnetic distribution valve for use, can be used for remotely controlling the on-off of oil, gas and water pipeline systems of hydropower stations, is usually used for clamping, controlling, lubricating and other oil passages, and has a direct action type and a pilot type, and is of a multipurpose pilot type.

But its when in actual use, the hydrovalve is easy because of the too big emergence of pressure bursts, makes hydraulic oil leak outward can cause the pollution to external environment, influences the normal work of hydrovalve simultaneously, makes the hydrovalve appear damaging comparatively easily.

Therefore, it is necessary to invent a hydraulic valve having an explosion-proof function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hydraulic valve with an explosion-proof function, through a pressure release structure, when the water pressure of liquid flowing into a liquid inlet pipe is too high, the liquid can upwards impact a propping block to enable the propping block to upwards move and upwards extrude a first spring to enable part of the liquid to flow out of a pressure relief pipe to play a role of partial pressure, and after the water pressure is normal, the first spring resets to push the propping block to block the pressure relief pipe, so that the valve body is prevented from bursting due to too high water pressure, and the defects in the technology are overcome.

In order to achieve the above purpose, the utility model provides the following technical scheme: a hydraulic valve with an explosion-proof function comprises a valve body, a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is arranged on one side of the valve body, a pressure release structure is arranged at the top of the liquid inlet pipe, a filtering sleeve is arranged at one end inside the liquid inlet pipe, a connecting pipe is arranged at one end of the liquid inlet pipe, a baffle is arranged inside the connecting pipe, the liquid outlet pipe is arranged on the other side of the valve body, a pressure dividing pipe is arranged at the other side of the valve body, which is close to the bottom of the liquid outlet pipe, a control oil passage is arranged at the bottom inside the valve body, a liquid inlet passage is arranged at one side inside the valve body, a liquid outlet passage is arranged at the other side inside the valve body, a valve cavity is arranged at the middle position inside the valve body, a control block is arranged at the bottom inside the valve cavity, a second spring is fixedly connected to the top inside the valve cavity, and a valve block is arranged at the bottom of the second spring, the pressure dividing valve is characterized in that a pressure dividing channel is formed in one side, close to the pressure dividing pipe, of the interior of the valve body, sliding grooves are formed in the front side and the rear side of the interior of the pressure dividing channel, a piston is arranged on one side of the interior of the pressure dividing channel, sliding blocks are fixedly connected to the front side and the rear side of the piston, and a third spring is arranged on one side of each sliding block.

Preferably, the pressure relief structure comprises an installation barrel, a pressure relief pipe, a cross rod, a first spring and a supporting block, the installation barrel is fixedly connected to the top of the liquid inlet pipe, the bottom of the installation barrel is communicated with the liquid inlet pipe, the pressure relief pipe is arranged on one side of the installation barrel and communicated with the installation barrel, the cross rod is arranged at the bottom of the installation barrel, the first spring is arranged at the top inside the installation barrel, the supporting block is arranged at the bottom end of the first spring, and the bottom of the supporting block is abutted to the top of the cross rod.

Preferably, the longitudinal section of the bottom end of the abutting block is in an inverted isosceles trapezoid shape, and the top of the outer side of the abutting block is attached to the inner side of the mounting cylinder.

Preferably, the outer side of the filtering sleeve is attached to the inner side of the liquid inlet pipe, and one end of the filtering sleeve is abutted to one side of the blocking piece.

Preferably, the liquid inlet channel is communicated with the control oil channel, the control oil channel is communicated with the valve cavity, the liquid inlet channel is communicated with the valve cavity, and the valve cavity is communicated with the liquid outlet channel.

Preferably, the piston is connected with the pressure dividing channel in a sliding mode through a sliding block and a sliding groove, and the cross section of one end of the piston is in a conical shape.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. through the pressure release structure, when the water pressure of liquid flowing into the liquid inlet pipe is too high, the liquid can impact the abutting block upwards to enable the abutting block to move upwards and extrude the first spring upwards, so that a part of the liquid flows out of the pressure relief pipe to play a role of partial pressure;

2. through filtering the sleeve, liquid will filter through filtering the sleeve earlier when getting into the feed liquor pipe, blocks the impurity in the liquid, avoids impurity entering valve body inside to cause the jam to control oil road passageway and inlet channel, influences the normal use of valve body to the life of extension valve body.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a top cross-sectional view of the present invention;

FIG. 4 is a schematic view of the connection between the connection pipe and the liquid inlet pipe according to the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 6 is an enlarged view of the utility model at B in fig. 3.

Description of reference numerals:

1. a valve body; 2. a liquid inlet pipe; 3. a pressure relief structure; 301. mounting the cylinder; 302. a pressure relief pipe; 303. a cross bar; 304. a first spring; 305. a resisting block; 4. a filter cartridge; 5. a connecting pipe; 6. a baffle plate; 7. a liquid outlet pipe; 8. a pressure dividing pipe; 9. controlling the oil-way channel; 10. a liquid inlet channel; 11. a liquid outlet channel; 12. a valve cavity; 13. a control block; 14. a valve block; 15. a second spring; 16. a pressure dividing channel; 17. a chute; 18. a piston; 19. a slider; 20. and a third spring.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a hydraulic valve with an explosion-proof function as shown in figures 1-6, which comprises a valve body 1, a liquid inlet pipe 2 and a liquid outlet pipe 7, wherein one side of the valve body 1 is provided with the liquid inlet pipe 2, the top of the liquid inlet pipe 2 is provided with a pressure release structure 3, one end inside the liquid inlet pipe 2 is provided with a filtering sleeve 4, one end of the liquid inlet pipe 2 is provided with a connecting pipe 5, the inside of the connecting pipe 5 is provided with a baffle 6, the other side of the valve body 1 is provided with the liquid outlet pipe 7, the other side of the valve body 1 is provided with a pressure dividing pipe 8 close to the bottom of the liquid outlet pipe 7, the bottom inside the valve body 1 is provided with a control oil passage 9, one side inside the valve body 1 is provided with a liquid inlet passage 10, the other side inside the valve body 1 is provided with a liquid outlet passage 11, the middle position inside the valve body 1 is provided with a valve cavity 12, and the bottom inside the valve cavity 12 is provided with a control block 13, the valve comprises a valve cavity 12 and is characterized in that a second spring 15 is fixedly connected to the top inside the valve cavity 12, a valve block 14 is arranged at the bottom of the second spring 15, a pressure dividing channel 16 is formed in one side, close to a pressure dividing pipe 8, of the inside of the valve body 1, sliding grooves 17 are formed in the front side and the rear side of the inside of the pressure dividing channel 16, a piston 18 is arranged on one side of the inside of the pressure dividing channel 16, a sliding block 19 is fixedly connected to the front side and the rear side of the piston 18, and a third spring 20 is arranged on one side of the sliding block 19.

Further, in the above technical solution, the pressure release structure 3 includes an installation cylinder 301, a pressure relief pipe 302, a cross rod 303, a first spring 304 and a abutting block 305, the installation cylinder 301 is fixedly connected to the top of the liquid inlet pipe 2, the bottom of the installation cylinder 301 is communicated with the liquid inlet pipe 2, the pressure relief pipe 302 is arranged on one side of the installation cylinder 301, the pressure relief pipe 302 is communicated with the installation cylinder 301, the cross rod 303 is arranged at the bottom of the installation cylinder 301, the first spring 304 is arranged at the top inside the installation cylinder 301, the abutting block 305 is arranged at the bottom end of the first spring 304, the bottom of the abutting block 305 is abutted to the top of the cross rod 303, the longitudinal section of the bottom end of the abutting block 305 is shaped as an inverted isosceles trapezoid, the top outside of the abutting block 305 is abutted to the inner side of the installation cylinder 301, and when the water pressure inside the liquid inlet pipe 2 is too high, the liquid can enter the installation cylinder 301 due to the excessively high water pressure through the pressure release structure 3, and the abutting block 305 is pushed upwards to enable the first spring 304 to contract the first spring 304, so that a part of liquid is shunted out from the pressure relief pipe 302, after the water pressure is normal, the first spring 304 is reset, the abutting block 305 is pushed to block the pressure relief pipe 302, and the valve body 1 is prevented from bursting due to overhigh water pressure.

Further, in above-mentioned technical scheme, the outside of filtering sleeve 4 and the inboard laminating of feed liquor pipe 2, one end of filtering sleeve 4 and one side butt of separation blade 6 filter the liquid that gets into valve body 1 through filtering sleeve 4, prevent that the impurity in the liquid from getting into valve body 1, cause the jam to valve body 1 inside, influence the normal use of valve body 1.

Further, in the above technical solution, the liquid inlet channel 10 is communicated with the control oil channel 9, the control oil channel 9 is communicated with the valve cavity 12, the liquid inlet channel 10 is communicated with the valve cavity 12, the valve cavity 12 is communicated with the liquid outlet channel 11, and the interior of the valve body 1 can normally operate by controlling the oil channel 9, the liquid inlet channel 10, the liquid outlet channel 11 and the valve cavity 12.

Further, in the above technical solution, the piston 18 is slidably connected to the pressure dividing channel 16 through the slider 19 and the sliding groove 17, a cross-sectional shape of one end of the piston 18 is set to be a cone, the piston 18 can slide in the pressure dividing channel 16 through the slider 19 and the sliding groove 17, so that when the water pressure in the control oil passage 9 is too high, the liquid in the control oil passage 9 is branched out from the pressure dividing channel 16, thereby achieving a pressure reduction effect on the control oil passage 9.

This practical theory of operation:

referring to the attached drawings 1-6 of the specification, firstly, the filtering sleeve 4 is inserted into the liquid inlet pipe 2, then the connecting pipe 5 is installed at one end of the liquid inlet pipe 2, the filtering sleeve 4 is stably installed at one end of the liquid inlet pipe 2 through the blocking piece 6, the liquid entering the valve body 1 is filtered through the filtering sleeve 4, then the valve body 1 is installed at a proper position, when the valve body 1 is used, the liquid flows in from the connecting pipe 5, impurities in the liquid are filtered through the filtering sleeve 4, the impurities are prevented from blocking the inside of the valve body 1, when the water pressure of the liquid flowing into the liquid inlet pipe 2 is too high, the water flow can impact the abutting block 305 upwards, the abutting block 305 moves upwards and extrudes the first spring 304 upwards, so that a part of the liquid flows out from the pressure relief pipe 302 to play a partial pressure role, and meanwhile, the other part of the liquid continuously flows into the liquid inlet channel 10 and the control oil channel 9, after liquid enters the control oil passage 9, the control block 13 is jacked upwards, the valve block 14 is jacked upwards through the control block 13, so that the liquid flows into the liquid outlet passage 11 from the liquid inlet passage 10 through the valve cavity 12 and is discharged through the liquid outlet pipe 7, when the water pressure is normal, the first spring 304 is reset, the abutting block 305 is pushed to block the pressure relief pipe 302, and the valve body 1 is prevented from bursting due to overhigh water pressure;

referring to the attached drawings 1-6 of the specification, when liquid flows into the control oil passage 9, if the water pressure is too high, the water pressure jacks up the control block 13 upwards, the piston 18 is pushed through the pressure dividing passage 16, the sliding block 19 slides in the sliding groove 17, one end of the piston 18 is driven to extend outwards, the pressure dividing passage 16 is communicated with the pressure dividing pipe 8, the pressure dividing effect is achieved, and the control oil passage 9 is prevented from being damaged due to the fact that the water pressure is too high.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a hydrovalve with explosion-proof function, includes valve body (1), feed liquor pipe (2) and drain pipe (7), its characterized in that: a liquid inlet pipe (2) is arranged on one side of the valve body (1), a pressure release structure (3) is arranged on the top of the liquid inlet pipe (2), a filtering sleeve (4) is arranged at one end inside the liquid inlet pipe (2), a connecting pipe (5) is arranged at one end of the liquid inlet pipe (2), a baffle (6) is arranged inside the connecting pipe (5), a liquid outlet pipe (7) is arranged on the other side of the valve body (1), a pressure distribution pipe (8) is arranged at the bottom of the other side of the valve body (1) close to the liquid outlet pipe (7), a control oil passage (9) is arranged at the bottom of the inside of the valve body (1), a liquid inlet passage (10) is arranged on one side of the inside of the valve body (1), a liquid outlet passage (11) is arranged on the other side of the inside of the valve body (1), a valve cavity (12) is arranged in the middle position of the inside of the valve body (1), and a control block (13) is arranged at the bottom of the inside of the valve cavity (12), the improved valve is characterized in that a second spring (15) is fixedly connected to the top of the interior of the valve cavity (12), a valve block (14) is arranged at the bottom of the second spring (15), a pressure dividing channel (16) is formed in one side, close to a pressure dividing pipe (8), of the interior of the valve body (1), sliding grooves (17) are formed in the front side of the interior of the pressure dividing channel (16) and the rear side of the interior of the pressure dividing channel (16), a piston (18) is arranged on one side of the interior of the pressure dividing channel (16), a sliding block (19) is fixedly connected to the front side and the rear side of the piston (18), and a third spring (20) is arranged on one side of the sliding block (19).

2. The hydraulic valve with explosion-proof function according to claim 1, characterized in that: the pressure release structure (3) comprises an installation barrel (301), a pressure relief pipe (302), a cross rod (303), a first spring (304) and a support block (305), the installation barrel (301) is fixedly connected to the top of the liquid inlet pipe (2), the bottom of the installation barrel (301) is communicated with the liquid inlet pipe (2), the pressure relief pipe (302) is arranged on one side of the installation barrel (301), the pressure relief pipe (302) is communicated with the installation barrel (301), the cross rod (303) is arranged at the bottom of the installation barrel (301), the first spring (304) is arranged at the top inside the installation barrel (301), the support block (305) is arranged at the bottom end of the first spring (304), and the bottom of the support block (305) is abutted to the top of the cross rod (303).

3. The hydraulic valve with explosion-proof function according to claim 2, characterized in that: the longitudinal section of the bottom end of the abutting block (305) is in the shape of an inverted isosceles trapezoid, and the top of the outer side of the abutting block (305) is attached to the inner side of the mounting cylinder (301).

4. The hydraulic valve with explosion-proof function according to claim 1, characterized in that: the outside of filtering sleeve (4) and the inboard laminating of feed liquor pipe (2), the one end of filtering sleeve (4) and one side butt of separation blade (6).

5. The hydraulic valve with explosion-proof function according to claim 1, characterized in that: the liquid inlet channel (10) is communicated with the control oil channel (9), the control oil channel (9) is communicated with the valve cavity (12), the liquid inlet channel (10) is communicated with the valve cavity (12), and the valve cavity (12) is communicated with the liquid outlet channel (11).

6. The hydraulic valve with explosion-proof function according to claim 1, characterized in that: the piston (18) is connected with the pressure dividing channel (16) in a sliding mode through a sliding block (19) and a sliding groove (17), and the cross section of one end of the piston (18) is in a conical shape.