CN220539656U

CN220539656U - Double-valve-core upright post hydraulic control one-way valve

Info

Publication number: CN220539656U
Application number: CN202322181380.0U
Authority: CN
Inventors: 房春梅; 张永维
Original assignee: Beijing Dinglida Mining Equipment Co ltd
Current assignee: Beijing Dinglida Mining Equipment Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-02-27
Anticipated expiration: 2033-08-15

Abstract

The utility model provides a double-valve-core upright post hydraulic control one-way valve. Including the valve body, the side of valve body is provided with horizontal Z mouth, vertical Z mouth has been seted up to the top surface and the bottom surface of valve body, P mouth has been seted up to one side of vertical Z mouth, vertical B mouth has been seted up to one side of P mouth, horizontal B mouth has been seted up to the opposite side of valve body, A mouth has been seted up to one side of valve body, the outside of horizontal B mouth is provided with the connecting block, the inside fixedly connected with valve barrel of valve body, swing joint has the spin in horizontal Z mouth and the vertical Z mouth, one side of spin is provided with the pocket net, be provided with the piston in the valve barrel, one side fixedly connected with guide arm of piston, the inside swing joint of valve barrel has female case, swing joint has the son case in the female case. The utility model has the advantages that: the problem that hydraulic oil flows out from other Z ports, so that the oil pressure is insufficient to push the piston and the normal use of the check valve is affected can be avoided.

Description

Double-valve-core upright post hydraulic control one-way valve

Technical Field

The utility model relates to the technical field of one-way valves, in particular to a double-valve-core upright post hydraulic control one-way valve.

Background

The hydraulic support is a structure for controlling the mine pressure of the coal face. The mining face ore pressure acts on the hydraulic support in an external load mode. The hydraulic control one-way valve is an important component in the hydraulic support, and the quality of the hydraulic control one-way valve is related to the quality of the hydraulic support.

For example, the column hydraulic control check valve with the authorized publication number of CN216867136U is characterized in that a small valve core is arranged in a valve core and matched with components such as a small spring, when liquid is supplied to a P port, the small valve core is opened rapidly by small pressure to release pressure, so that the pressure fluctuation of opening and closing the hydraulic control check valve is reduced, the high-pressure liquid impact is reduced, and the valve sleeve component and the hydraulic element are effectively protected. However, since the plurality of Z ports are mutually communicated, oil is likely to flow out from other Z ports when oil is communicated to one Z port, so that the oil pressure is insufficient to push the piston, and the normal use of the check valve is affected. Therefore, a double-valve-core upright post hydraulic control one-way valve is provided for improvement.

Disclosure of Invention

The object of the present utility model is to solve at least one of the technical drawbacks.

Therefore, an object of the present utility model is to provide a double-valve-core column hydraulic control check valve, so as to solve the problems mentioned in the background art and overcome the defects existing in the prior art.

In order to achieve the above purpose, an embodiment of an aspect of the present utility model provides a dual-valve-core column hydraulically-controlled check valve, which comprises a valve body, wherein a horizontal Z port is provided on a side surface of the valve body, vertical Z ports are provided on top and bottom surfaces of the valve body, a P port is provided on one side of the vertical Z port, a vertical B port is provided on one side of the P port, a horizontal B port is provided on the other side of the valve body, a port a is provided on one side of the valve body, a connecting block is provided on the outer side of the horizontal Z port, a valve sleeve is fixedly connected inside the valve body, rolling balls are movably connected in the horizontal Z port and the vertical Z port, a pocket net is provided on one side of the rolling balls, a piston is provided in the valve sleeve, a guide rod is fixedly connected on one side of the piston, a female valve core is movably connected inside the valve sleeve, and a sub valve core is movably connected inside the female valve core.

By any of the above schemes, it is preferable that the horizontal Z port has an upper part and a lower part, and the horizontal Z port is communicated with the inner space of the vertical Z port.

By any of the above schemes, preferably, the port P is formed in the middle of the valve body, and the vertical port B is communicated with the internal space of the horizontal port B.

The technical scheme is adopted: the valve body is used as a key component of the hydraulic tool and is fixedly arranged in the hydraulic tool to control the flow of liquid in the hydraulic tool, so that the normal use of the hydraulic tool is ensured. The two horizontal Z openings arranged on the side surface of the valve body and the vertical Z openings arranged on the top surface and the bottom surface of the valve body are used for providing hydraulic pressure for the valve body, so that the piston moves, and the internal channel of the valve body is opened to facilitate the backflow of hydraulic oil. The P port is used for normally supplying oil to the valve body to enable the valve body to work as a one-way valve. The vertical port B and the horizontal port B are used as oil return ports of the valve body, and the port A is used as an oil outlet of the valve body.

By any of the above schemes, preferably, the connecting block is in threaded connection with a valve sleeve, and a transmission cavity is formed in the valve sleeve.

By any of the above schemes, it is preferable that the horizontal Z port, the vertical Z port, the P port, the vertical B port, the horizontal B port and the A port are all communicated with the transmission cavity in the middle of the valve sleeve.

The technical scheme is adopted: the connecting block is used for connecting the horizontal Z port to the valve body, and the connecting block is connected with the valve sleeve through threads, so that the stability of connection of the connecting block and the valve sleeve is guaranteed, and the connecting block is convenient to install and detach. The valve sleeve is internally provided with a transmission cavity for hydraulic oil to flow and provides a moving space for the piston, the guide rod, the main valve core and the sub valve core. Each port is connected with the transmission cavity in the valve sleeve, so that hydraulic oil can flow into the transmission cavity through each port to carry out transmission work. The ball is used for blocking oil passing channels in the horizontal Z port and the vertical Z port and preventing hydraulic oil from flowing backwards.

By any of the above schemes, it is preferable that the cavity where the ball is located adopts a variable cross-section cavity, and the net is arranged on the side where the size of the cavity where the ball is located is larger.

By any of the above schemes, preferably, a clamping block is arranged on the side face of the piston, and the sub valve core is movably connected with the main valve core through a spring.

The technical scheme is adopted: the rolling ball is provided with a variable cross section cavity, so that the rolling ball can control the opening and closing of the cavity in the moving process, when the rolling ball moves to the position of the cavity with larger size, the cavity is opened, hydraulic oil can pass through, and otherwise, the hydraulic oil is blocked by the rolling ball. The net prevents the ball from rolling elsewhere, limiting the range of movement of the ball. The piston is used for driving the main valve core and the sub valve core to move, the guide rod is used for transmitting kinetic energy, the main valve core and the sub valve core can control the opening and closing of the transmission cavity in the middle of the valve sleeve, and whether hydraulic oil can flow out is determined. When oil is fed to the horizontal Z port or the vertical Z port, hydraulic oil enters the transmission cavity along the internal channel of the transmission cavity and pushes the piston to move rightwards, and the piston pushes the main valve core and the sub valve core to move rightwards through the guide rod, so that the transmission cavity is opened, and backflow can be performed at the moment. In the process, if hydraulic oil flows to other Z ports, the rolling ball moves to the narrower direction of the cavity channel under the drive of the hydraulic oil and seals the cavity channel, so that the hydraulic oil can be prevented from flowing out of the other Z ports, and the problem that the normal use of the check valve is affected due to insufficient oil pressure to push the piston is solved.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. this double spool stand hydraulically controlled check valve sets up the spin through in horizontal Z mouth and vertical Z mouth to the cooperation sets up variable cross section chamber way, pocket net, when leading to oil to horizontal Z mouth or vertical Z mouth, hydraulic oil gets into the transmission chamber along its internal passage, and promotes the piston to move to the right, and the piston promotes female case, sub-case through the guide arm and moves to the right, makes the transmission chamber open, alright the refluence this moment. In the process, if hydraulic oil flows to other Z ports, the rolling ball moves to the narrower direction of the cavity channel under the drive of the hydraulic oil and seals the cavity channel, so that the hydraulic oil can be prevented from flowing out of the other Z ports, and the problem that the normal use of the check valve is affected due to insufficient oil pressure to push the piston is solved.

2. According to the double-valve-core upright post hydraulic control check valve, the clamping block fixedly connected with the valve sleeve is arranged on the side face of the piston, when oil is introduced to the P port, the piston is blocked by the clamping block, and the piston and the guide rod cannot move leftwards, so that hydraulic oil can only move rightwards to push the main valve core and the sub valve core to move, the problem that oil leakage from the Z port cannot occur when the check valve works is solved, and the working stability of the valve body is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a first view structure according to the present utility model;

FIG. 2 is a schematic view of a second view angle structure according to the present utility model;

FIG. 3 is a schematic view of the present utility model in cross-section;

fig. 4 is a schematic view of the hydraulic principle of the present utility model.

In the figure: 1-valve body, 2-horizontal Z mouth, 3-vertical Z mouth, 4-P mouth, 5-vertical B mouth, 6-horizontal B mouth, 7-A mouth, 8-connecting block, 9-valve pocket, 10-spin, 11-pocket net, 12-piston, 13-guide arm, 14-female valve core, 15-sub valve core.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in figures 1-4, the utility model comprises a valve body 1, wherein a horizontal Z port 2 is arranged on the side surface of the valve body 1, vertical Z ports 3 are arranged on the top surface and the bottom surface of the valve body 1, a P port 4 is arranged on one side of the vertical Z port 3, a vertical B port 5 is arranged on one side of the P port 4, a horizontal B port 6 is arranged on the other side of the valve body 1, an A port 7 is arranged on one side of the valve body 1, a connecting block 8 is arranged on the outer side of the horizontal Z port 2, a valve sleeve 9 is fixedly connected inside the valve body 1, rolling balls 10 are movably connected in the horizontal Z port 2 and the vertical Z port 3, a pocket net 11 is arranged on one side of the rolling balls 10, a piston 12 is arranged in the valve sleeve 9, a guide rod 13 is fixedly connected on one side of the piston 12, a female valve core 14 is movably connected inside the valve sleeve 9, and a sub valve core 15 is movably connected inside the female valve core 14.

Example 1: the horizontal Z port 2 is provided with an upper part and a lower part, and the horizontal Z port 2 is communicated with the inner space of the vertical Z port 3. The P port 4 is arranged in the middle of the valve body 1, and the vertical B port 5 is communicated with the inner space of the horizontal B port 6. The valve body 1 is used as a key component of the hydraulic tool and is fixedly arranged in the hydraulic tool to control the flow of liquid in the hydraulic tool so as to ensure the normal use of the hydraulic tool. The two horizontal Z ports 2 arranged on the side surface and the vertical Z ports 3 arranged on the top surface and the bottom surface are all used for providing hydraulic pressure for the valve body 1, so that the piston 12 moves, and the internal channel of the valve body 1 is opened to facilitate the backflow of hydraulic oil. The port P4 is used for supplying oil to the valve body 1 normally to enable the valve body 1 to perform the check valve operation. The vertical port B5 and the horizontal port B6 are used as oil return ports of the valve body 1, and the port A7 is used as an oil outlet of the valve body 1.

Example 2: the connecting block 8 is in threaded connection with the valve sleeve 9, and a transmission cavity is formed in the valve sleeve 9. The horizontal Z port 2, the vertical Z port 3, the P port 4, the vertical B port 5, the horizontal B port 6 and the A port 7 are all communicated with a transmission cavity in the middle of the valve sleeve 9. The connecting block 8 is used for connecting the horizontal Z port 2 to the valve body 1, and is connected with the valve sleeve 9 through threads, so that the stability of connection of the horizontal Z port 2 and the valve sleeve is ensured, and the horizontal Z port is convenient to install and detach. The valve sleeve 9 is internally provided with a transmission cavity for hydraulic oil to flow and provides a moving space for the piston 12, the guide rod 13, the main valve core 14 and the sub valve core 15. Each port is connected with the transmission cavity inside the valve sleeve 9, so that hydraulic oil can flow into the transmission cavity through each port to perform transmission work. The ball 10 is used for blocking oil passing channels in the horizontal Z port 2 and the vertical Z port 3 and preventing hydraulic oil from flowing backwards.

Example 3: the cavity where the ball 10 is positioned adopts a variable cross-section cavity, and the pocket net 11 is arranged on the side where the size of the cavity where the ball 10 is positioned is larger. The side of the piston 12 is provided with a clamping block, and the sub valve core 15 is movably connected with the main valve core 14 through a spring. The rolling ball 10 adopts a variable cross-section cavity way at the position, so that the rolling ball 10 can control the opening and closing of the cavity way in the moving process, when the rolling ball 10 moves to the position of the cavity way with larger size, the cavity way is opened, hydraulic oil can pass through, and otherwise, the hydraulic oil is blocked by the rolling ball 10. The net 11 prevents the ball 10 from rolling elsewhere, limiting the range of movement of the ball 10. The piston 12 is used for driving the main valve core 14 and the sub valve core 15 to move, the guide rod 13 is used for transmitting kinetic energy, the main valve core 14 and the sub valve core 15 can control the opening and closing of the transmission cavity in the middle of the valve sleeve 9, and whether hydraulic oil can flow out is determined. When oil is fed to the horizontal Z port 2 or the vertical Z port 3, hydraulic oil enters the transmission cavity along the internal channel of the transmission cavity, the piston 12 is pushed to move rightwards, the piston 12 pushes the main valve core 14 and the sub valve core 15 to move rightwards through the guide rod 13, so that the transmission cavity is opened, and backflow can be performed at the moment. In this process, if hydraulic oil flows to other Z mouths, under the drive of hydraulic oil, the spin 10 moves to the narrower direction of chamber way to with the shutoff of chamber way, block the hydraulic oil in the chamber way inside, so alright avoid hydraulic oil to flow from other Z mouths, lead to the oil pressure not enough to promote the piston, influence the problem of the normal use of check valve.

The working principle of the utility model is as follows:

s1, when oil is fed to a horizontal Z port 2 or a vertical Z port 3, hydraulic oil enters a transmission cavity along an internal channel of the transmission cavity, the piston 12 is pushed to move rightwards, the piston 12 pushes a main valve core 14 and a sub valve core 15 to move rightwards through a guide rod 13, so that the transmission cavity is opened, and backflow can be performed at the moment;

s2, in the process, if the hydraulic oil flows to other Z ports, the rolling ball 10 moves to the narrower direction of the cavity and seals the cavity, and the hydraulic oil is blocked in the cavity;

and S3, when oil is introduced into the P port 4, the piston 12 and the guide rod 13 cannot move leftwards because the piston 12 is blocked by the clamping block, so that hydraulic oil can only move rightwards to push the main valve core 14 and the sub valve core 15 to move, and the valve body 1 performs common check valve work.

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

1. according to the double-valve-core upright post hydraulic control one-way valve, rolling balls 10 are arranged in the horizontal Z port 2 and the vertical Z port 3, a variable-section cavity channel and a pocket net 11 are arranged in a matched mode, when oil is communicated to the horizontal Z port 2 or the vertical Z port 3, hydraulic oil enters a transmission cavity along an internal channel of the transmission cavity, a piston 12 is pushed to move rightwards, and the piston 12 pushes a main valve core 14 and a sub valve core 15 to move rightwards through a guide rod 13, so that the transmission cavity is opened, and backflow can be conducted at the moment. In this process, if hydraulic oil flows to other Z mouths, under the drive of hydraulic oil, the spin 10 moves to the narrower direction of chamber way to with the shutoff of chamber way, block the hydraulic oil in the chamber way inside, so alright avoid hydraulic oil to flow from other Z mouths, lead to the oil pressure not enough to promote the piston, influence the problem of the normal use of check valve.

2. According to the double-valve-core upright post hydraulic control check valve, the clamping block fixedly connected with the valve sleeve 9 is arranged on the side face of the piston 12, when oil is introduced to the P port 4, the piston 12 and the guide rod 13 cannot move leftwards due to the blocking of the clamping block, so that hydraulic oil can only move rightwards to push the main valve core 14 and the sub valve core 15 to move, the problem that oil leakage from the Z port cannot occur when the check valve works is solved for the valve body 1, and the working stability of the valve body 1 is improved.

Claims

1. The double-valve-core upright post hydraulic control one-way valve comprises a valve body (1); the valve is characterized in that a horizontal Z port (2) is arranged on the side face of the valve body (1), vertical Z ports (3) are formed in the top face and the bottom face of the valve body (1), P ports (4) are formed in one side of the vertical Z ports (3), vertical B ports (5) are formed in one side of the P ports (4), a horizontal B port (6) is formed in the other side of the valve body (1), an A port (7) is formed in one side of the valve body (1), a connecting block (8) is arranged on the outer side of the horizontal Z port (2), a valve sleeve (9) is fixedly connected to the inside of the valve body (1), rolling balls (10) are movably connected in the horizontal Z ports (2) and the vertical Z ports (3), a pocket net (11) is arranged on one side of the rolling balls (10), a piston (12) is arranged in the valve sleeve (9), a guide rod (13) is fixedly connected to one side of the piston (12), a female valve core (14) is movably connected to the inside of the valve sleeve (9), and a valve core (15) is movably connected to the female valve core (14).

2. The dual spool stand column pilot operated check valve of claim 1, wherein: the horizontal Z-shaped opening (2) is provided with an upper part and a lower part, and the horizontal Z-shaped opening (2) is communicated with the inner space of the vertical Z-shaped opening (3).

3. The dual spool stand column pilot operated check valve of claim 2, wherein: the P port (4) is formed in the middle of the valve body (1), and the vertical B port (5) is communicated with the inner space of the horizontal B port (6).

4. The dual spool stand column pilot operated check valve of claim 3, wherein: the connecting block (8) is in threaded connection with the valve sleeve (9), and a transmission cavity is formed in the valve sleeve (9).

5. The dual spool stand column pilot operated check valve of claim 4, wherein: the horizontal Z port (2), the vertical Z port (3), the P port (4), the vertical B port (5), the horizontal B port (6) and the A port (7) are communicated with a transmission cavity in the middle of the valve sleeve (9).

6. The dual spool stand column pilot operated check valve of claim 5, wherein: the cavity where the rolling ball (10) is located adopts a variable cross-section cavity, and the pocket net (11) is arranged on one side of the rolling ball (10) where the size of the cavity is larger.

7. The dual spool stand column pilot operated check valve of claim 6, wherein: the side face of the piston (12) is provided with a clamping block, and the sub valve core (15) is movably connected with the main valve core (14) through a spring.