Bidirectional pressure adjustable hydraulic valve

Abstract

The bidirectional pressure adjustable hydraulic valve comprises a valve body, a valve element shell and a valve element push block, the valve element shell is arranged in the center of the valve body, an overflow opening is formed in the outer wall of the valve element shell, a filter screen assembly is arranged in the overflow opening, and the valve element push block is inserted into the bottom of the valve element shell. A limiting plate is arranged at the bottom of the valve element push block, a second spring is arranged at the bottom of the limiting plate, a second screw is arranged at the bottom of the second spring, a first spring is arranged at the top of the valve element shell, and a first screw is arranged at the top of the first spring. The flow in the valve body can be controlled by adjusting the positions of the valve element shell and the valve element push block, the situation that the valve body cannot be normally used due to the fact that impurities block the overflow opening is avoided by connecting the filter screen assembly to the overflow opening, disassembly and assembly are convenient, workers can conveniently clean the impurities in the filter screen at regular intervals, and the service life of the valve body is prolonged. Meanwhile, the filtering effect is achieved, normal operation of equipment is guaranteed, use is convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to a hydraulic valve, in particular to a bidirectional pressure-adjustable hydraulic valve, belonging to the technical field of hydraulic valves. Background Art

[0002] Valves that handle liquids are widely used in various industries, such as aerospace, petroleum, electricity, metallurgy, and environmental protection. They are crucial industrial equipment for transporting liquids. In hydraulic systems, valves control the direction, pressure, and flow of liquids to meet the hydraulic equipment's various operating requirements. During operation, valve operators adjust the valve pressure based on the flow rate. However, due to impurities in the medium, these impurities often clog the overflow port or valve core over extended use, causing the valve to malfunction. Utility Model Content

[0003] The positive and beneficial effects of the utility model are: overcoming the shortcomings of the existing technology, providing a two-way pressure-adjustable hydraulic valve, and arranging a filter at the overflow port to prevent impurities from clogging the overflow port and causing the valve body to be unable to adjust normally. The utility model is easy to use and simple to operate.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] A bidirectional pressure-adjustable hydraulic valve comprises a valve body, a valve core housing and a valve core push block, a valve core housing being provided at the center of the valve body, an overflow port being provided on the outer wall of the valve core housing, and a filter assembly being provided in the overflow port, a valve core push block being inserted at the bottom of the valve core housing, a limit plate being provided at the bottom of the valve core push block, a second spring being provided at the bottom of the limit plate, a second screw being provided at the bottom of the second spring, a first spring being provided at the top of the valve core housing, and a first screw being provided at the top of the first spring.

[0006] The right side of the valve core shell and the valve core push block is provided with a liquid inlet, and the left side of the valve core shell and the valve core push block is provided with a liquid outlet.

[0007] The filter assembly consists of a limit ring, a sleeve and a filter. The bottom of the limit ring is provided with a sleeve, the bottom of the sleeve is provided with a filter, and the outer diameter of the sleeve matches the inner diameter of the overflow port. The filter assembly is fixedly connected to the valve core housing by bolts.

[0008] An upper U-shaped slot is provided at the upper end of the valve core housing, the lower end of the first screw rod passes through the upper U-shaped slot, and a push plate is provided at the lower end of the first screw rod, and the push plate is located in the upper U-shaped slot.

[0009] The lower end of the valve core push block is provided with a lower U-shaped slot hole, the upper end of the second screw rod passes through the lower U-shaped slot hole, and a push plate is provided at the upper end of the second screw rod, and the push plate is located in the lower U-shaped slot hole.

[0010] A first nut is provided on the top of the valve body, and the first screw rod is connected to the first nut through a thread; a second nut is provided on the bottom of the valve body, and the second screw rod is connected to the second nut through a thread.

[0011] The outer ends of the first screw rod and the second screw rod are respectively provided with handles.

[0012] The positive beneficial effects of the utility model are:

[0013] 1. The utility model arranges springs at the top of the valve core housing and the bottom of the valve core push block, and adjusts the position of the valve core housing and the valve core push block by adjusting the first screw and the second screw, thereby controlling the pressure and flow rate in the valve body and improving the applicability of the valve; and arranges a filter assembly at the overflow port to avoid the overflow port being clogged by impurities, thereby preventing the valve body from being unable to be used normally, ensuring the stability of construction, and being easy to use and simple to operate.

[0014] 2. The valve body assembly of the utility model is detachable, and the filter assembly is fixedly connected to the valve body shell by bolts, which is convenient for disassembly and assembly. The staff only needs to clean the impurities in the filter regularly, and it also plays a filtering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram of the valve core housing and the valve core push block of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the filter assembly of the utility model;

[0018] Among them: 1-valve body, 2-valve core housing, 3-valve core push block, 4-filter assembly, 401-limiting ring, 402-sleeve, 403-filter, 5-first spring, 6-first screw, 7-first nut, 8-limiting plate, 9-second spring, 10-second screw, 11-second nut, 12-upper U-shaped slot, 13-lower U-shaped slot, A-liquid inlet, B-liquid outlet. DETAILED DESCRIPTION

[0019] The present invention will be further explained and illustrated below with reference to the accompanying drawings:

[0020] For example, see Figure 1-Figure 3A bidirectional pressure-adjustable hydraulic valve comprises a valve body 1, a valve core housing 2 and a valve core push block 3. A valve core housing 2 is arranged in the center of the valve body 1, an overflow port is arranged on the outer wall of the valve core housing 2, and a filter assembly 4 is arranged in the overflow port. A valve core push block 3 is inserted at the bottom of the valve core housing 2, a limit plate 8 is arranged at the bottom of the valve core push block 3, a second spring 9 is arranged at the bottom of the limit plate 8, a second screw 10 is arranged at the bottom of the second spring 9, a first spring 5 is arranged at the top of the valve core housing 2, and a first screw 6 is arranged on the top of the first spring 5.

[0021] A liquid inlet A is provided on the right side of the valve core housing 2 and the valve core push block 3 , and a liquid outlet B is provided on the left side of the valve core housing 2 and the valve core push block 3 .

[0022] The filter assembly 4 consists of a limiting ring 401, a sleeve 402 and a filter 403. The sleeve 402 is arranged at the bottom of the limiting ring 401, and the filter 403 is arranged at the bottom of the sleeve 402. The outer diameter of the sleeve 402 matches the inner diameter of the overflow port. The filter assembly is fixedly connected to the valve core housing 2 by bolts.

[0023] An upper U-shaped slot 12 is provided at the upper end of the valve core housing 2 , and the lower end of the first screw 6 passes through the upper U-shaped slot 12 . A push plate is provided at the lower end of the first screw 6 , and the push plate is located in the upper U-shaped slot 12 .

[0024] A lower U-shaped slot 13 is provided at the lower end of the valve core push block 3 , the upper end of the second screw 10 passes through the lower U-shaped slot 13 , and a push plate is provided at the upper end of the second screw 10 , and the push plate is located in the lower U-shaped slot 13 .

[0025] A first nut 7 is provided at the top of the valve body 1, and the first screw rod 6 is connected to the first nut 7 through a thread; a second nut 11 is provided at the bottom of the valve body 1, and the second screw rod 10 is connected to the second nut 11 through a thread.

[0026] Handles are provided at the outer ends of the first screw rod 6 and the second screw rod 10 respectively.

[0027] The filter screen components are arranged in three rows, with at least 10 screen screens in each row, and are evenly distributed on the outside of the valve body housing 2 .

[0028] In the above description, the first screw and the second screw pass through the valve body and extend into the corresponding slots and are fixedly connected to the push plate.

[0029] In the above description, the filter assembly is located at the upper part of the valve core housing, the bottom of the valve core housing is open, and the valve core push block matches the size of the inner wall of the valve core housing.

[0030] In the above description, when the first spring and the second spring are in the reset state, the distance between the valve core push block and the inner wall of the valve core housing is the largest, that is, the flow rate is the largest; when the first spring and the second spring are in the compressed state, the springs are gradually compressed when the two screws rotate, and the distance between the valve core push block and the inner wall of the valve core housing will gradually decrease. At this time, the flow rate will gradually decrease.

[0031] In the above description, when installing the filter assembly, the sleeve is placed in the overflow port, and the limit ring is fixedly connected to the valve core housing by bolts.

[0032] The utility model discloses to adjust the position of the valve core shell and the valve core push block, can control the size of the flow in the valve body, and by connecting the filter assembly at the overflow port, avoid the overflow port being blocked by impurities, which would cause the valve body to be unable to be used normally. The utility model is convenient for disassembly and assembly, which is not only conducive to the staff to regularly clean the impurities in the filter screen, but also plays a filtering role, thus ensuring the normal operation of the equipment. The utility model is convenient to use and simple to operate.

Claims

1. A bidirectional pressure-adjustable hydraulic valve, comprising a valve body (1), a valve core housing (2) and a valve core push block (3), characterized in that: A valve core housing (2) is provided at the center of the valve body (1), an overflow port is provided on the outer wall of the valve core housing (2), and a filter assembly (4) is provided in the overflow port, a valve core push block (3) is inserted at the bottom of the valve core housing (2), a limit plate (8) is provided at the bottom of the valve core push block (3), a second spring (9) is provided at the bottom of the limit plate (8), a second screw (10) is provided at the bottom of the second spring (9), a first spring (5) is provided at the top of the valve core housing (2), and a first screw (6) is provided at the top of the first spring (5).

2. A bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: described A liquid inlet (A) is provided on the right side of the valve core housing (2) and the valve core push block (3), and a liquid outlet (B) is provided on the left side of the valve core housing (2) and the valve core push block (3).

3. The bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: The filter assembly (4) consists of a limiting ring (401), a sleeve (402) and a filter (403). The bottom of the limiting ring (401) is provided with a sleeve (402), and the bottom of the sleeve (402) is provided with a filter (403). The outer diameter of the sleeve (402) matches the inner diameter of the overflow port. The filter assembly is fixedly connected to the valve core housing (2) by bolts.

4. The bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: An upper U-shaped slot (12) is provided at the upper end of the valve core housing (2), the lower end of the first screw (6) passes through the upper U-shaped slot (12), and a push plate is provided at the lower end of the first screw (6), the push plate being located in the upper U-shaped slot (12).

5. The bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: The lower end of the valve core push block (3) is provided with a lower U-shaped slot (13), the upper end of the second screw (10) passes through the lower U-shaped slot (13), and a push plate is provided at the upper end of the second screw (10), and the push plate is located in the lower U-shaped slot (13).

6. The bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: A first nut (7) is provided at the top of the valve body (1), and the first screw rod (6) is connected to the first nut (7) through a thread; a second nut (11) is provided at the bottom of the valve body (1), and the second screw rod (10) is connected to the second nut (11) through a thread.

7. The bidirectional pressure-adjustable hydraulic valve according to claim 6, characterized in that: The outer ends of the first screw rod (6) and the second screw rod (10) are respectively provided with handles.

8. The bidirectional pressure-adjustable hydraulic valve according to claim 1, characterized in that: The filter screen components are arranged in three rows, with at least 10 screen screens in each row, and are evenly distributed outside the valve body housing (2).

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