Hydraulic valve

Abstract

The utility model discloses a hydraulic valve, and belongs to the field of hydraulic valves. A hydraulic valve comprises a valve body and connecting pipes fixedly connected to the two ends of the valve body, and further comprises sleeves connected to the outer walls of the connecting pipes in a threaded mode. The containing groove is formed in the connecting pipe, and a first sealing ring is fixedly connected to the interior of the containing groove; the pipeline body is arranged in the accommodating groove; the pipeline body is installed in the containing groove, the pipeline body extrudes the limiting column in the process, the limiting column slides upwards along the sliding groove, when the pipeline body is installed, the pipeline body is just attached to the first sealing ring, and meanwhile the limiting column is clamped into the limiting groove under the action of the reset spring to limit the pipeline body; and by rotating the sleeve, the sleeve moves towards one end of the valve body to limit the limiting column, and the problem that during installation, a plurality of bolts need to be used for fixing, and operation is inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a 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] After searching, the Chinese patent authorization number CN215371033U discloses a valve stem positioning device for a hydraulic valve, including a valve seat and a valve stem positioning mechanism; the valve seat: a valve closing tube is provided at the opening of the upper surface thereof, a sealing plate is vertically slidably connected to the upper end of the inner part of the valve closing tube, a valve stem is provided at the center of the bottom surface of the sealing plate, a yielding port is provided in cooperation with the valve stem at the center of the inner lower end of the valve seat, an annular plate is provided in the middle of the inner arc wall of the valve closing tube, a first spring is provided between the upper surface of the annular plate and the bottom surface of the sealing plate, the first spring is sleeved on the outside of the valve stem, and a hydraulic oil pipe is provided at the hydraulic oil port at the center of the upper surface of the valve closing tube; the valve stem positioning mechanism: it is arranged inside the valve closing tube. The valve stem positioning device for the hydraulic valve in the above patent has the following shortcomings: it needs to be fixed by multiple bolts during installation, which is inconvenient to operate and has poor sealing performance. Utility Model Content

[0004] The utility model aims to provide a hydraulic valve to solve the problems in the prior art that a plurality of bolts are required for fixing during installation, the operation is inconvenient, and the sealing performance is poor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic valve comprises a valve body and connecting pipes fixedly connected to both ends of the valve body, and also comprises: a sleeve, which is threadedly connected to the outer wall of the connecting pipe; a receiving groove, which is arranged inside the connecting pipe, and a sealing ring is fixedly connected to the inside of the receiving groove; a pipeline body, which is arranged inside the receiving groove, and a limiting groove is arranged on the outer wall of the pipeline body; a slide groove, which is arranged inside the connecting pipe, and a return spring is fixedly connected to the inner wall of the slide groove, and the end of the return spring away from the inner wall of the slide groove is fixedly connected to a limiting column, and the limiting column cooperates with the limiting groove.

[0007] Furthermore, the pipe body is slidably connected to the containing groove.

[0008] Furthermore, one end of the limiting column close to the receiving groove is configured to be a hemispherical shape corresponding to the limiting groove, and one end of the limiting column away from the receiving groove is configured to be an inclined surface.

[0009] Furthermore, the limiting posts are evenly distributed in a circular array inside the connecting pipe.

[0010] Furthermore, a clamping groove is provided inside the connecting pipe, and a limiting ring is slidably connected inside the clamping groove.

[0011] Furthermore, a connecting block is fixedly connected to the inner wall of the limiting ring, and an auxiliary cover is fixedly connected to one end of the connecting block away from the limiting ring.

[0012] Furthermore, a second sealing ring is provided on the inner wall of the accommodating groove, and the inner wall of the second sealing ring is provided as an inclined surface.

[0013] Compared with the prior art, the utility model provides a hydraulic valve having the following beneficial effects:

[0014] 1. The hydraulic valve is installed by installing the pipeline body into the receiving groove. During the process, the pipeline body squeezes the limit column, so that the limit column slides upward along the slide groove. When the pipeline body is installed, it fits with the sealing ring. At the same time, the limit column is inserted into the limit groove under the action of the reset spring to limit the pipeline body. The sleeve is rotated to move the sleeve toward one end of the valve body to limit the limit column, which solves the problem of needing to fix with multiple bolts during installation, which is inconvenient to operate.

[0015] 2. The hydraulic valve seals the pipeline body through the sealing ring 1 and the sealing ring 2. The faster the water flow inside the pipeline body, the greater the thrust on the auxiliary cover, thereby driving the limit ring to squeeze the sealing ring 2, thereby enhancing the sealing effect.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional main structural diagram of a hydraulic valve proposed by the utility model;

[0018] Figure 2 This is a structural schematic diagram of a hydraulic valve limit groove portion proposed by the utility model;

[0019] Figure 3 This is a schematic structural diagram of a hydraulic valve body cross-section proposed by the utility model;

[0020] Figure 4 A hydraulic valve proposed by the utility model Figure 3 A magnified view of part A;

[0021] Figure 5 The present invention is a schematic structural diagram of a hydraulic valve auxiliary cover.

[0022] In the figure: 1. valve body; 2. connecting pipe; 3. sleeve; 4. pipeline body; 5. limiting groove; 6. slide groove; 7. return spring; 8. limiting column; 9. receiving groove; 10. sealing ring 1; 11. clamping groove; 12. sealing ring 2; 13. limiting ring; 14. connecting block; 15. auxiliary cover. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-Figure 5 A hydraulic valve comprises a valve body 1 and a connecting pipe 2 fixedly connected to both ends of the valve body 1, and also comprises a sleeve 3 threadedly connected to the outer wall of the connecting pipe 2, a receiving groove 9 is provided inside the connecting pipe 2, a sealing ring 10 is fixedly connected inside the receiving groove 9, a pipeline body 4 is arranged inside the receiving groove 9, a limiting groove 5 is provided on the outer wall of the pipeline body 4, a sliding groove 6 is provided inside the connecting pipe 2, a return spring 7 is fixedly connected to the inner wall of the sliding groove 6, and the end of the return spring 7 away from the inner wall of the sliding groove 6 is fixedly connected to the limiting column 8, and the limiting column 8 and the limiting The groove 5 cooperates with each other, and the pipe body 4 is installed into the accommodating groove 9. During the process, the pipe body 4 squeezes the limit column 8, so that the limit column 8 slides upward along the slide groove 6. When the pipe body 4 is installed, it fits with the sealing ring 10. At the same time, the limit column 8 is inserted into the limit groove 5 under the action of the reset spring 7 to limit the pipe body 4. By rotating the sleeve 3, the sleeve 3 moves toward one end of the valve body 1 to limit the limit column 8, which solves the problem of needing to be fixed by multiple bolts during installation, which is inconvenient to operate.

[0026] The pipeline body 4 is slidably connected to the receiving groove 9 so as to facilitate the connection between the pipeline body 4 and the valve body 1 .

[0027] One end of the limiting column 8 close to the receiving groove 9 is set to be hemispherical corresponding to the limiting groove 5, and one end of the limiting column 8 away from the receiving groove 9 is provided with an inclined surface so that the limiting column 8 can limit the pipeline body 4.

[0028] The limiting posts 8 are evenly distributed in a circular array inside the connecting pipe 2 , and the pipe body 4 is better fixed by multiple groups of limiting posts 8 .

[0029] A clamping groove 11 is provided inside the connecting pipe 2 , and a limiting ring 13 is slidably connected inside the clamping groove 11 . The limiting ring 13 corresponds to the second sealing ring 12 , and the second sealing ring 12 is squeezed by the limiting ring 13 .

[0030] A connecting block 14 is fixedly connected to the inner wall of the limiting ring 13 , and an auxiliary cover 15 is fixedly connected to one end of the connecting block 14 away from the limiting ring 13 , so as to convert the water flow inside the pipe body 4 into a thrust on the limiting ring 13 .

[0031] A sealing ring 12 is disposed on the inner wall of the receiving groove 9, and the inner wall of the sealing ring 12 is configured as an inclined surface.

[0032] In the utility model, the pipeline body 4 is installed into the accommodating groove 9. During the process, the pipeline body 4 squeezes the limit column 8, so that the limit column 8 slides upward along the slide groove 6. When the pipeline body 4 is installed, it fits with the sealing ring 10. At the same time, the limit column 8 is clamped into the limit groove 5 under the action of the reset spring 7 to limit the pipeline body 4. The sleeve 3 is rotated to move the sleeve 3 toward one end of the valve body 1 to limit the limit column 8, which solves the problem of needing to fix with multiple bolts during installation and the inconvenient operation. The pipeline body 4 is sealed by the sealing ring 10 and the sealing ring 2 12, and the faster the water flow inside the pipeline body 4, the greater the thrust on the auxiliary cover 15, thereby driving the limit ring 13 to squeeze the sealing ring 2 12, thereby enhancing the sealing effect.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic valve, comprising a valve body (1) and connecting pipes (2) fixedly connected to both ends of the valve body (1), characterized in that: Also includes: A sleeve (3) is threadedly connected to the outer wall of the connecting pipe (2); A receiving groove (9) is provided inside the connecting pipe (2), and a sealing ring (10) is fixedly connected inside the receiving groove (9); A pipe body (4) is arranged inside the containing groove (9), and a limiting groove (5) is provided on the outer wall of the pipe body (4); A slide groove (6) is provided inside the connecting tube (2); a return spring (7) is fixedly connected to the inner wall of the slide groove (6); an end of the return spring (7) away from the inner wall of the slide groove (6) is fixedly connected to a limiting column (8); and the limiting column (8) cooperates with the limiting groove (5).

2. A hydraulic valve according to claim 1, characterized in that: The pipe body (4) is slidably connected to the containing groove (9).

3. A hydraulic valve according to claim 1, characterized in that: One end of the limiting column (8) close to the containing groove (9) is arranged in a hemispherical shape corresponding to the limiting groove (5), and one end of the limiting column (8) away from the containing groove (9) is arranged with an inclined surface.

4. A hydraulic valve according to claim 3, characterized in that: The limiting columns (8) are evenly distributed in a circular array inside the connecting pipe (2).

5. A hydraulic valve according to claim 1, characterized in that: A clamping groove (11) is provided inside the connecting pipe (2), and a limiting ring (13) is slidably connected inside the clamping groove (11).

6. A hydraulic valve according to claim 5, characterized in that: A connecting block (14) is fixedly connected to the inner wall of the limiting ring (13), and an auxiliary cover (15) is fixedly connected to one end of the connecting block (14) away from the limiting ring (13).

7. A hydraulic valve according to claim 1, characterized in that: The inner wall of the containing groove (9) is provided with a second sealing ring (12), and the inner wall of the second sealing ring (12) is arranged as an inclined surface.

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