Valve body of multi-way valve

Abstract

The utility model relates to the technical field of multi-way valves, in particular to a valve body of a multi-way valve, which comprises a multi-way valve body, a connector, an operating rod and a safety valve. A connector is connected to the upper portion of the multi-way valve body, an operating rod is connected to the front portion of the multi-way valve body, a safety valve is connected to the front portion, close to the operating rod, of the multi-way valve body, supports are connected to the two sides of the multi-way valve body, and filtering mechanisms are arranged in the supports. According to the valve body of the multi-way valve, hydraulic oil enters the filter shell through the pipeline on one side of the filter shell, is filtered by the filter cartridges and then flows out of the pipeline in the sealing cover, when one group of filter cartridges is blocked, the rotary handle is rotated to drive the valve block to rotate, the L-shaped oil outlet groove is aligned with other L-shaped oil inlet cavities, and other groups of filter cartridges are used for filtering; when all the filter cartridges are blocked, the sealing cover is opened, the filter cartridges are taken out to be cleaned, and then the valve body of the multi-way valve is used for filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-way valves, and particularly to a valve body of a multi-way valve. Background Art

[0002] The overall multi-way valve adopts a unified modular design, which can provide a reliable system solution for the manufacturers of engineering vehicles. Users need to make different combinations of the valve body according to functional requirements, which is simple and reliable. It can be either a simple load-sensitive manual multi-way valve or an electro-hydraulic proportional control valve with a non-saturation function that is independent of the load and the pump flow rate. However, there are still certain defects in the existing multi-way valves when in use, such as;

[0003] Most of the existing multi-way valves are not provided with a filtering structure. When the hydraulic oil continuously flows in the multi-way valve, impurities will be generated. After long-term use, it is easy to cause the multi-way valve to be blocked, thereby affecting the use of the multi-way valve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a valve body of a multi-way valve to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A valve body of a multi-way valve, comprising: a multi-way valve body, a joint, an operating rod, and a safety valve;

[0006] A joint is connected above the multi-way valve body, and an operating rod is connected to the front of the multi-way valve body. A safety valve is connected to the front of the multi-way valve body near the operating rod. Brackets are connected to both sides of the multi-way valve body, and a filtering mechanism is arranged inside the brackets;

[0007] The filtering mechanism comprises: a filter housing, a sealing cover, a valve block, an L-shaped oil outlet groove, a rotating handle, an L-shaped oil inlet cavity, a filter cartridge, a sealing ring, and a pressing seat. The filter housing is connected to the inner wall of the bracket by bolts. A sealing cover is connected above the filter housing through a sealing gasket, and the sealing cover is connected above the multi-way valve body through a pipeline.

[0008] Preferably, the valve block is rotatably connected to the inner wall of the filter housing through a sealing gasket, and an L-shaped oil outlet groove is formed in the valve block.

[0009] Preferably, the bottom of the valve block is connected with a rotating handle, and the rotating handle passes through and rotates through a sealing bearing below the inner wall of the filter housing.

[0010] Preferably, an L-shaped oil inlet cavity is formed on one side of the inner wall of the filter housing, and a filter cartridge is arranged in the L-shaped oil inlet cavity.

[0011] Preferably, a sealing ring is sleeved on the outer side of the filter cartridge, and the sealing ring abuts against the inner wall of the filter housing.

[0012] Preferably, a pressure seat is abutted above the filter cartridge, and the pressure seat is connected to the bottom of the sealing cover.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the valve body of the multi-way valve, hydraulic oil enters the filter housing through a pipeline on one side of the filter housing, is filtered by the filter cartridge, and then flows out through the pipeline in the sealing cover. When one group of filter cartridges is blocked, the valve block is rotated by turning the rotary handle to align the L-shaped oil outlet groove with other L-shaped oil inlet cavities, and the other groups of filter cartridges are used for filtration. When all the filter cartridges are blocked, the sealing cover is opened, and the filter cartridges are taken out for cleaning, so as to filter the valve body of the multi-way valve. The specific content is as follows:

[0014] 1. Hydraulic oil enters through a pipeline on one side of the filter housing, then the hydraulic oil is filtered by the filter cartridge, enters the L-shaped oil outlet groove from the L-shaped oil inlet cavity, and then flows out through the pipeline in the sealing cover. By turning the rotary handle to drive the valve block to rotate, the L-shaped oil outlet groove is aligned with other L-shaped oil inlet cavities, and the other groups of filter cartridges are used for filtration, so as to filter the valve body of the multi-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a rear cross-sectional structural schematic diagram of the valve block of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the filter housing of the present utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the sealing cover of the present utility model;

[0019] Figure 5 is a three-dimensional cross-sectional structural schematic diagram of the filter housing of the present utility model.

[0020] In the figure: 1. Multi-way valve body; 2. Connector; 3. Operating rod; 4. Safety valve; 5. Bracket; 6. Filter mechanism; 601. Filter housing; 602. Sealing cover; 603. Valve block; 604. L-shaped oil outlet groove; 605. Rotary handle; 606. L-shaped oil inlet cavity; 607. Filter cartridge; 608. Sealing ring; 609. Pressure seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a valve body of a multi-way valve, including: a multi-way valve body 1, a joint 2, an operating rod 3 and a safety valve 4; a joint 2 is connected above the multi-way valve body 1, and an operating rod 3 is connected to the front part of the multi-way valve body 1, and a safety valve 4 is connected to the front part of the multi-way valve body 1 near the operating rod 3. Brackets 5 are connected to both sides of the multi-way valve body 1, and a filtering mechanism 6 is arranged inside the brackets 5; the filtering mechanism 6 includes: a filter housing 601, a sealing cover 602, a valve block 603, an L-shaped oil outlet groove 604, a rotating handle 605, an L-shaped oil inlet cavity 606, a filter cartridge 607, a sealing ring 608 and a pressing seat 609. The filter housing 601 is connected to the inner wall of the bracket 5 by bolts, the sealing cover 602 is connected above the filter housing 601 through a gasket, and the sealing cover 602 is connected above the multi-way valve body 1 through a pipeline.

[0023] During specific implementation, the oil pump is connected to the filter housing 601 on one side of the multi-way valve body 1, so that the oil pump pumps hydraulic oil

[0024] to enter through the pipeline on one side of the filter housing 601. The fuel tank is connected to the sealing cover 602 on the other side of the multi-way valve body 1, so that the hydraulic oil coming out of the oil pump enters through the pipeline on one side of the filter housing 601 and flows into the fuel tank through the pipeline inside the sealing cover 602.

[0025] Referring to Figures 1 - 5 , it can be seen that the valve block 603 is rotatably connected to the inner wall of the filter housing 601 through a gasket. An L-shaped oil outlet groove 604 is formed in the valve block 603. A rotating handle 605 is connected to the bottom of the valve block 603. The rotating handle 605 passes through and rotates through a sealing bearing below the inner wall of the filter housing 601. An L-shaped oil inlet cavity 606 is formed on one side of the inner wall of the filter housing 601. A filter cartridge 607 is arranged in the L-shaped oil inlet cavity 606. A sealing ring 608 is sleeved outside the filter cartridge 607. The sealing ring 608 abuts against the inner wall of the filter housing 601. A pressing seat 609 abuts against the upper part of the filter cartridge 607. The pressing seat 609 is connected to the bottom of the sealing cover 602.

[0026] During specific implementation, the pressing seat 609 at the bottom of the sealing cover 602 presses the filter cartridge 607, and the filter cartridge 607 presses the sealing ring 608 to seal with the L-shaped oil inlet cavity 606. Oil enters through the pipeline on one side of the filter housing 601, is filtered by the filter cartridge 607, enters the L-shaped oil outlet groove 604 from the L-shaped oil inlet cavity 606, and then flows out through the pipeline inside the sealing cover 602. When one group of filter cartridges 607 is blocked, rotating the handle 605 drives the valve block 603 to rotate, aligning the L-shaped oil outlet groove 604 with other L-shaped oil inlet cavities 606, and filtering with other groups of filter cartridges 607. Multiple threaded holes are provided on the outer side of the handle 605, and the handle 605 is positioned at the bottom of the filter housing 601 with bolts, which can prevent the filter housing 601 from rotating and ensure the alignment of the L-shaped oil outlet groove 604 with the L-shaped oil inlet cavity 606. After long-term use, when all the filter cartridges 607 are blocked, open the sealing cover 602, take out the filter cartridges 607 for cleaning. A gasket is provided between the sealing cover 602 and the filter housing 601, and the filter housing 601, the gasket, and the sealing cover 602 are fixed together with bolts.

[0027] In summary: When using the valve body of this multi-way valve, first, connect the oil pump and the fuel tank to the filter housing 601 on one side of the multi-way valve body 1 and the sealing cover 602 on the other side of the multi-way valve body 1 respectively. Then connect the two sets of corresponding front and rear connectors 2 to the inlet pipe and the outlet pipe of the hydraulic system respectively. The oil pump sends the hydraulic oil into the filter housing 601, and after being filtered by the filter cartridge 607, it is sent into the multi-way valve body 1. Pull the operating rod 3 to let the hydraulic oil flow out from one set of connectors 2. Pull the operating rod 3 in the opposite direction to make the hydraulic oil inlet and outlet directions of the two sets of corresponding front and rear connectors 2 opposite, so as to control the lifting of the hydraulic system. When the lifting of the hydraulic system is slow, rotate the handle 605 to switch to other groups of filter cartridges 607 to judge whether the filter cartridges 607 are blocked or there are other faults. After switching all the filter cartridges 607, open the sealing cover 602, take out the filter cartridges 607 for cleaning or replacement. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A valve body of a multi-way valve, comprising: Multi-way valve body (1), joint (2), operating rod (3) and safety valve (4), characterized in that; A joint (2) is connected above the multi-way valve body (1), an operating rod (3) is connected to the front of the multi-way valve body (1), a safety valve (4) is connected to the front of the multi-way valve body (1) near the operating rod (3), brackets (5) are connected to both sides of the multi-way valve body (1), and a filtering mechanism (6) is arranged in the brackets (5); The filtering mechanism (6) includes: a filter housing (601), a sealing cover (602), a valve block (603), an L-shaped oil outlet groove (604), a rotary handle (605), an L-shaped oil inlet cavity (606), a filter cartridge (607), a sealing ring (608) and a pressing seat (609). The filter housing (601) is connected to the inner wall of the bracket (5) by bolts, the sealing cover (602) is connected above the filter housing (601) through a gasket, and the sealing cover (602) is connected above the multi-way valve body (1) through a pipeline.

2. The valve body of a multi-way valve according to claim 1, wherein: The valve block (603) is rotatably connected to the inner wall of the filter housing (601) through a gasket, and an L-shaped oil outlet groove (604) is formed in the valve block (603).

3. The valve body of a multi-way valve according to claim 2, characterized in that: The bottom of the valve block (603) is connected with a rotary handle (605), and the rotary handle (605) passes through and rotates through the inner wall below the filter housing (601) through a sealed bearing.

4. The valve body of a multi-way valve according to claim 1, characterized in that: An L-shaped oil inlet cavity (606) is formed on one side of the inner wall of the filter housing (601), and a filter cartridge (607) is arranged in the L-shaped oil inlet cavity (606).

5. The valve body of a multi-way valve according to claim 4, characterized in that: A sealing ring (608) is sleeved on the outer side of the filter cartridge (607), and the sealing ring (608) abuts against the inner wall of the filter housing (601).

6. The valve body of a multi-way valve according to claim 4, characterized in that: The filter cartridge (607) abuts against a pressing seat (609) above, and the pressing seat (609) is connected to the bottom of the sealing cover (602).

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