Leakage-proof hydraulic valve

Abstract

The utility model provides a leakage-proof hydraulic valve, and belongs to the technical field of hydraulic valves. The leakage-proof hydraulic valve comprises a valve pipe, a pressure distributing valve is arranged at the top of the valve pipe, connecting sleeves are arranged at the two ends of the valve pipe, the valve pipe comprises a pipe body, connecting rings are fixedly installed at the two ends of the pipe body, leakage-proof grooves are formed in one sides of the connecting rings, each connecting sleeve comprises a hexagonal thread sleeve, a mounting sleeve is arranged at one end of each hexagonal thread sleeve, and a sealing ring is arranged at the other end of each hexagonal thread sleeve. The outer sides of the two ends of the pipe body are sleeved with the mounting sleeves, the mounting sleeves are rotationally connected with the pipe body, threads are formed in the inner sides of the hexagonal threaded sleeves, the connecting rings are arranged on the inner sides of the mounting sleeves, and the anti-leakage rings are fixedly installed on one sides of the mounting sleeves and connected with the anti-leakage grooves in a clamped mode. And the service life can be prolonged, and the practical value is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a leak-proof hydraulic valve. Background Art

[0002] A hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of a pressure regulating valve. It is usually used in combination with an electromagnetic pressure regulating valve and can be used to remotely control the on / off of the oil, gas, and water pipeline systems of a hydropower station. It is often used for clamping, controlling, lubricating, and other oil circuits. There are direct-acting and pilot-operated types, and the pilot-operated type is more commonly used.

[0003] Based on the above, the inventors have found the following problems: the hydraulic valves at both ends are usually connected to the pipelines with sealing rings to prevent leakage, but long-term use can easily lead to aging of the sealing rings, reduced sealing effect and leakage, making them inconvenient to use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a leak-proof hydraulic valve is provided to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a leak-proof hydraulic valve, which is specifically implemented by the following technical solutions:

[0006] A leak-proof hydraulic valve comprises a valve tube, a pressure-matching valve is provided on the top of the valve tube, connecting sleeves are provided at both ends of the valve tube, the valve tube comprises a tube body, connecting rings are fixedly installed at both ends of the tube body, a leak-proof groove is provided on one side of the connecting ring, the connecting sleeve comprises a hexagonal screw sleeve, a mounting sleeve is provided at one end of the hexagonal screw sleeve, the mounting sleeve is arranged on the outside of both ends of the tube body, and the mounting sleeve is rotatably connected to the tube body, a thread is provided on the inner side of the hexagonal screw sleeve, the connecting ring is arranged on the inner side of the mounting sleeve, a leak-proof ring is fixedly installed on one side of the mounting sleeve, and the leak-proof ring is engaged and connected with the leak-proof groove.

[0007] The beneficial effect of adopting the above further scheme is that a pressure-matching valve is provided on the top of the valve tube, and connecting sleeves are provided at both ends of the valve tube, which is convenient for connecting the device to an external pipeline using the connecting sleeve, and the pressure-matching valve controls the on-and-off of the hydraulic oil circuit, and a leak-proof groove is provided on one side of the connecting ring, so that the leak-proof groove cooperates with the leak-proof ring to improve the sealing performance between the valve tube and the connecting sleeve, thereby improving the leak-proof effect, and the installation sleeve is provided on the outside of both ends of the tube body, and the installation sleeve is rotatably connected to the tube body, so that the hexagonal screw sleeve can be rotated by a tool, and a thread is provided on the inner side of the hexagonal screw sleeve, so that the device can be screwed to the external pipeline by rotation of the hexagonal screw sleeve The threaded connection is fixed, and the connecting ring is arranged on the inner side of the installation sleeve, so that when the hexagonal screw sleeve is locked with the external pipeline, the installation sleeve makes one side of the connecting ring fit and seal with the external pipeline to avoid leakage. A leak-proof ring is fixedly installed on one side of the installation sleeve, and the leak-proof ring is snap-connected with the leak-proof groove, which is convenient to further improve the sealing performance between the device and the external pipeline, improve the leak-proof performance, and can avoid the inside of the connecting sleeve, so that the sealing ring does not contact with the external air, so that the sealing ring works in a light-proof and low-oxygen environment, and avoids aging and damage of the sealing ring during use, thereby improving the service life and leak-proof performance of the sealing ring.

[0008] Furthermore, a sealing ring is provided on one side of the connecting ring, and the sealing ring is arranged on the inner side of the connecting sleeve.

[0009] The beneficial effect of adopting the above further scheme is that a sealing ring is provided on one side of the connecting ring, and the sealing ring is arranged on the inner side of the connecting sleeve, so that the connecting sleeve can be locked to fix the sealing ring between the connecting ring and the external pipe, so that the sealing ring can play a sealing and leak-proof effect.

[0010] Furthermore, the pressure regulating valve comprises a valve body, and connecting pipes are provided at two ends of the bottom of the valve body, and the connecting pipes are connected with the valve body.

[0011] The beneficial effect of adopting the above further solution is that connecting pipes are opened at both ends of the bottom of the valve body, and the connecting pipes are connected to the pipe body, which makes it easier for the pressure regulating valve to control the flow direction and on-off of the hydraulic oil inside the valve pipe.

[0012] Furthermore, a partition is fixedly installed in the middle of the tube body, and the partition is arranged to connect the two connecting tubes.

[0013] The beneficial effect of adopting the above further scheme is that a partition is fixedly installed in the middle of the tube body, and the partition is arranged inside the two connecting pipes to connect them, so that the partition can separate the two ends of the inner side of the tube body, making it convenient for the pressure regulating valve to control the flow direction and on-off of the hydraulic oil.

[0014] Furthermore, a pump inlet port is provided in the middle of the top end of the valve body, and recovery ports are provided at both ends of the top end of the valve body.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that a pumping interface is opened in the middle part of the top of the valve body, and recovery interfaces are opened at both ends of the top of the valve body, which facilitates the connection between the pumping interface and the hydraulic oil pump, and the connection between the recovery oil tank and the recovery interface, so that the hydraulic oil pump can pump hydraulic oil into the device, and the discharged hydraulic oil enters the recovery oil tank for recycling.

[0016] Furthermore, an electromagnetic coil is fixedly mounted on one end of the valve body, and a valve stem is fixedly mounted on an output end of the electromagnetic coil.

[0017] The beneficial effect of adopting the above further solution is that the electromagnetic coil is fixedly installed at one end of the valve body, and the valve stem is fixedly installed at the output end of the electromagnetic coil, so that the electromagnetic coil can control the valve stem to slide left and right.

[0018] Furthermore, a sliding sleeve is fixedly mounted on the other end of the valve body, and the other end of the valve stem is slidably connected to the sliding sleeve.

[0019] The beneficial effect of adopting the above further solution is that a sliding sleeve is fixedly installed on the other end of the valve body, and the other end of the valve stem is slidably connected to the sliding sleeve, which facilitates the limiting and guiding of the sliding of the valve stem.

[0020] Furthermore, three pistons are sleeved on the outer side of the valve stem, and the three pistons are respectively arranged at the bottom of the pump inlet interface and the two recovery interfaces.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that three pistons are respectively arranged at the bottom of the pump inlet interface and the two recovery interfaces, so that the three pistons can cut off the flow of the device when in the initial position. When the electromagnetic coil works to slide the valve stem to one end, the recovery interface at the corresponding end and the connecting pipe are connected, which facilitates the hydraulic oil to flow from one end of the pipe body to the recovery oil tank, and the connecting pipe at the other end is connected to the pump inlet interface, which facilitates the hydraulic oil pump to pump the hydraulic oil into the pipe body, thereby controlling the flow direction of the hydraulic oil.

[0022] The beneficial effects of the utility model are as follows: the utility model obtains a leak-proof hydraulic valve through the above-mentioned design. The leak-proof hydraulic valve is provided with a pressure-matching valve on the top of the valve tube, and connecting sleeves are provided at both ends of the valve tube, which is convenient for using the connecting sleeve to connect the device to the external pipeline. The pressure-matching valve controls the on-and-off of the hydraulic oil circuit. A leak-proof groove is provided on one side of the connecting ring, which is convenient for the leak-proof groove to cooperate with the leak-proof ring to improve the sealing performance between the valve tube and the connecting sleeve, thereby improving the leak-proof effect. The installation sleeve is provided on the outside of both ends of the pipe body, and the installation sleeve is rotatably connected to the pipe body, which is convenient for using a tool to rotate the hexagonal screw sleeve. Threads are provided on the inner side of the hexagonal screw sleeve, which is convenient for the rotation of the hexagonal screw sleeve to thread the device with the external pipeline. The sealing ring is fixed on the inner side of the installation sleeve, so that when the hexagonal screw sleeve is locked with the external pipeline, the installation sleeve makes one side of the connecting ring fit and seal with the external pipeline to avoid leakage. A leak-proof ring is fixedly installed on one side of the installation sleeve, and the leak-proof ring is snap-connected with the leak-proof groove, which is convenient for further improving the sealing performance between the device and the external pipeline, improving the leak-proof performance, and can avoid the inside of the connecting sleeve, so that the sealing ring does not contact with the external air, so that the sealing ring works in a light-proof and low-oxygen environment, and avoids aging and damage of the sealing ring during use, thereby improving the service life and leak-proof performance of the sealing ring. The utility model can effectively improve the leak-proof effect and the service life, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional structural schematic diagram of a leak-proof hydraulic valve provided by the utility model;

[0025] Figure 2 An exploded diagram of a leak-proof hydraulic valve provided by the utility model;

[0026] Figure 3 The utility model provides Figure 2 A magnified view of the structure in the middle;

[0027] Figure 4 A cutaway view of the connecting sleeve provided by the utility model;

[0028] Figure 5 The utility model is a cross-sectional view of a leak-proof hydraulic valve.

[0029] In the figure: 101, valve tube; 10101, tube body; 10102, connecting ring; 10103, sealing ring; 10104, leak-proof groove; 10105, partition; 102, pressure regulating valve; 10201, valve body; 10202, electromagnetic coil; 10203, sliding sleeve; 10204, pump inlet interface; 10205, recovery interface; 10206, connecting pipe; 10207, valve stem; 10208, piston; 103, connecting sleeve; 10301, hexagonal screw sleeve; 10302, installation sleeve; 10303, thread; 10304, leak-proof ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1 of the utility model of a leak-proof hydraulic valve

[0033] The utility model provides the following technical solutions: Figure 1-Figure 5As shown, a leak-proof hydraulic valve comprises a valve tube 101, a pressure-matching valve 102 is arranged at the top of the valve tube 101, and connecting sleeves 103 are arranged at both ends of the valve tube 101. The pressure-matching valve 102 is arranged at the top of the valve tube 101, and the connecting sleeves 103 are arranged at both ends of the valve tube 101, so that the device can be connected to an external pipeline by using the connecting sleeves 103. The pressure-matching valve 102 controls the on-off of the hydraulic oil circuit. The valve tube 101 comprises a tube body 10101, and connecting rings 10102 are fixedly installed at both ends of the tube body 10101. A leak-proof groove 10104 is opened on one side of the connecting ring 10102. The groove 10104 is convenient for leakproofing. The leakproof groove 10104 cooperates with the leakproof ring 10304 to improve the sealing performance between the valve tube 101 and the connecting sleeve 103, and improves the leakproof effect. The connecting sleeve 103 includes a hexagonal screw sleeve 10301, and one end of the hexagonal screw sleeve 10301 is provided with a mounting sleeve 10302. The mounting sleeve 10302 is sleeved on the outer sides of the two ends of the tube body 10101, and the mounting sleeve 10302 is rotatably connected to the tube body 10101. The mounting sleeve 10302 is sleeved on the outer sides of the two ends of the tube body 10101, and the mounting sleeve 10302 is rotatably connected to the tube body 10101, so that the hexagonal screw sleeve can be rotated using a tool. 10301, a thread 10303 is provided on the inner side of the hexagonal screw sleeve 10301, and a thread 10303 is provided on the inner side of the hexagonal screw sleeve 10301, so that the rotation of the hexagonal screw sleeve 10301 can thread the device to the external pipeline for fixing, and the connecting ring 10102 is arranged on the inner side of the installation sleeve 10302, and the connecting ring 10102 is arranged on the inner side of the installation sleeve 10302, so that when the hexagonal screw sleeve 10301 is locked with the external pipeline, the installation sleeve 10302 makes one side of the connecting ring 10102 fit and seal with the external pipeline to avoid leakage, and a waterproof The leak ring 10304 and the leak-proof ring 10304 are snap-fitted and connected with the leak-proof groove 10104. The leak-proof ring 10304 is fixedly installed on one side of the installation sleeve 10302. The leak-proof ring 10304 is snap-fitted and connected with the leak-proof groove 10104, so as to further improve the sealing performance between the device and the external pipeline, improve the leak-proof performance, and can avoid the inside of the connecting sleeve 103, so that the sealing ring 10103 does not contact with the external air, and makes the sealing ring 10103 work in a light-proof and low-oxygen environment, so as to avoid aging and damage of the sealing ring 10103 during use, thereby improving the service life and leak-proof performance of the sealing ring 10103.

[0034] Embodiment 2 of the utility model of a leak-proof hydraulic valve

[0035] Reference Figure 1-Figure 5As shown, a sealing ring 10103 is provided on one side of the connecting ring 10102, and the sealing ring 10103 is arranged on the inner side of the connecting sleeve 103. The sealing ring 10103 is provided on one side of the connecting ring 10102, and the sealing ring 10103 is arranged on the inner side of the connecting sleeve 103, so that the sealing ring 10103 is locked between the connecting ring 10102 and the external pipeline, so that the sealing ring 10103 plays a sealing and leak-proof effect. The pressure regulating valve 102 includes a valve body 10201, and connecting pipes 10206 are opened at both ends of the bottom of the valve body 10201. The connecting pipes 10206 are connected to the pipe body 10101. Connecting pipes 10206 are opened at both ends of the bottom of the valve body 10201, and the connecting pipes 10206 are connected to the pipe body 10101, so that the pressure regulating valve 102 controls the flow direction and on-off of the hydraulic oil in the valve pipe 101. A partition is fixedly installed in the middle of the pipe body 10101 Plate 10105, partition 10105 is arranged in communication with two connecting pipes 10206, and partition 10105 is fixedly installed in the middle of tube body 10101, and partition 10105 is arranged in communication with two connecting pipes 10206, so that partition 10105 can separate the two inner ends of tube body 10101, so that pressure regulating valve 102 can control the flow direction and on-off of hydraulic oil, and a pump inlet interface 10204 is provided in the middle of the top of valve body 10201, and recovery interface 10205 is provided at both ends of the top of valve body 10201, and a pump inlet interface 10204 is provided in the middle of the top of valve body 10201, and recovery interface 10205 is provided at both ends of the top of valve body 10201, so that the pump inlet interface 10204 is connected with the hydraulic oil pump, and the recovery oil tank is connected with the recovery interface 10205, so that the hydraulic oil pump can pump hydraulic oil into the inside of the device, and the discharged hydraulic oil enters the recovery oil tank for recycling.

[0036] Embodiment 3 of a leak-proof hydraulic valve of the utility model

[0037] Reference Figure 1-Figure 5As shown, a solenoid coil 10202 is fixedly installed at one end of the valve body 10201, and a valve stem 10207 is fixedly installed at the output end of the solenoid coil 10202. The solenoid coil 10202 is fixedly installed at one end of the valve body 10201, and the valve stem 10207 is fixedly installed at the output end of the solenoid coil 10202, so that the solenoid coil 10202 can control the valve stem 10207 to slide left and right. A sliding sleeve 10203 is fixedly installed at the other end of the valve body 10201, and the other end of the valve stem 10207 is slidably connected to the sliding sleeve 10203. The sliding sleeve 10203 is fixedly installed at the other end of the valve body 10201, and the other end of the valve stem 10207 is slidably connected to the sliding sleeve 10203, so that the sliding of the valve stem 10207 can be limited and guided. Three pistons 10208 are sleeved on the outside of 10207, and the three pistons 10208 are respectively arranged at the bottom of the pump inlet interface 10204 and the two recovery interfaces 10205. The three pistons 10208 are respectively arranged at the bottom of the pump inlet interface 10204 and the two recovery interfaces 10205, so that the three pistons 10208 can cut off the flow of the device when it is in the initial position. When the electromagnetic coil 10202 works to slide the valve stem 10207 to one end, the recovery interface 10205 at the corresponding end and the connecting pipe 10206 are connected, so that the hydraulic oil flows from one end of the tube body 10101 to the recovery oil tank, and the connecting pipe 10206 at the other end is connected with the pump inlet interface 10204, so that the hydraulic oil pump can pump the hydraulic oil into the tube body 10101, thereby controlling the flow direction of the hydraulic oil.

[0038] Specifically, the working principle of the leak-proof hydraulic valve is as follows: when in use, the installation sleeve 10302 is sleeved on the outer sides of the two ends of the pipe body 10101, and the installation sleeve 10302 is rotatably connected with the pipe body 10101, so that the hexagonal screw sleeve 10301 can be rotated by using a tool, and a thread 10303 is provided on the inner side of the hexagonal screw sleeve 10301, so that the rotation of the hexagonal screw sleeve 10301 can be used to connect the device to the external pipeline thread for fixing, and the connecting ring 10102 is arranged on the inner side of the installation sleeve 10302, so that the hexagonal screw sleeve 10301 can be rotated to fix the device to the external pipeline thread. When the angle screw sleeve 10301 is locked with the external pipeline, the installation sleeve 10302 makes one side of the connecting ring 10102 fit and seal with the external pipeline to avoid leakage. A leakproof ring 10304 is fixedly installed on one side of the installation sleeve 10302. The leakproof ring 10304 is snap-connected with the leakproof groove 10104, which is convenient for further improving the sealing performance between the device and the external pipeline, improving the leakproof performance, and can avoid the inside of the connecting sleeve 103, so that the sealing ring 10103 does not contact with the external air, so that the sealing ring 10103 is protected from light and low oxygen. The sealing ring 10103 can work in an environment to avoid aging and damage during use, thereby improving the service life and leakage-proof performance of the sealing ring 10103. A sealing ring 10103 is provided on one side of the connecting ring 10102. The sealing ring 10103 is arranged on the inner side of the connecting sleeve 103, which is convenient for locking the connecting sleeve 103 to fix the sealing ring 10103 between the connecting ring 10102 and the external pipe, so that the sealing ring 10103 has a sealing and leakage-proof effect. The three pistons 10208 are respectively arranged on the pump inlet interface 1 0204 and the bottom of the two recovery interfaces 10205 make it convenient for the three pistons 10208 to cut off the flow of the device when in the initial position, and when the electromagnetic coil 10202 works to slide the valve stem 10207 to one end, the recovery interface 10205 at the corresponding end and the connecting pipe 10206 are connected, so that the hydraulic oil flows from one end of the tube body 10101 to the recovery oil tank, and the connecting pipe 10206 at the other end is connected with the pump inlet interface 10204, so that the hydraulic oil pump can pump the hydraulic oil into the tube body 10101, thereby controlling the flow direction of the hydraulic oil.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A leak-proof hydraulic valve, characterized in that: The invention comprises a valve tube (101), wherein a pressure regulating valve (102) is provided at the top of the valve tube (101), and connecting sleeves (103) are provided at both ends of the valve tube (101), wherein the valve tube (101) comprises a tube body (10101), and connecting rings (10102) are fixedly installed at both ends of the tube body (10101), and a leakage-proof groove (10104) is provided on one side of the connecting ring (10102), and the connecting sleeve (103) comprises a hexagonal screw sleeve (10301), and one end of the hexagonal screw sleeve (10301) is provided with a mounting sleeve ( 10302), the installation sleeve (10302) is sleeved on the outside of both ends of the tube body (10101), and the installation sleeve (10302) is rotatably connected to the tube body (10101), a thread (10303) is provided on the inner side of the hexagonal screw sleeve (10301), the connecting ring (10102) is arranged on the inner side of the installation sleeve (10302), and a leak-proof ring (10304) is fixedly installed on one side of the installation sleeve (10302), and the leak-proof ring (10304) is snap-fitted and connected to the leak-proof groove (10104).

2. A leak-proof hydraulic valve according to claim 1, characterized in that: A sealing ring (10103) is provided on one side of the connecting ring (10102), and the sealing ring (10103) is arranged on the inner side of the connecting sleeve (103).

3. A leak-proof hydraulic valve according to claim 1, characterized in that: The pressure regulating valve (102) comprises a valve body (10201), and connecting pipes (10206) are provided at both ends of the bottom of the valve body (10201), and the connecting pipes (10206) are connected to the pipe body (10101).

4. A leak-proof hydraulic valve according to claim 3, characterized in that: A partition (10105) is fixedly installed in the middle of the tube body (10101), and the partition (10105) is arranged to connect two connecting pipes (10206).

5. A leak-proof hydraulic valve according to claim 4, characterized in that: A pump inlet port (10204) is provided in the middle of the top of the valve body (10201), and recovery ports (10205) are provided at both ends of the top of the valve body (10201).

6. A leak-proof hydraulic valve according to claim 5, characterized in that: An electromagnetic coil (10202) is fixedly mounted on one end of the valve body (10201), and a valve stem (10207) is fixedly mounted on the output end of the electromagnetic coil (10202).

7. A leak-proof hydraulic valve according to claim 6, characterized in that: A sliding sleeve (10203) is fixedly mounted on the other end of the valve body (10201), and the other end of the valve stem (10207) is slidably connected to the sliding sleeve (10203).

8. A leak-proof hydraulic valve according to claim 7, characterized in that: The outer side of the valve stem (10207) is sleeved with three pistons (10208), and the three pistons (10208) are respectively arranged at the bottom of the pump inlet interface (10204) and the two recovery interfaces (10205).

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