Hydraulic valve block capable of preventing accumulation and blockage of impurities

Abstract

The utility model relates to the technical field of hydraulic valve blocks, in particular to a hydraulic valve block capable of preventing accumulation and blockage of impurities, which comprises a hydraulic valve block body and a return pipe, one end of the return pipe is connected with a filter pipe for filtering through a bolt, and the inner wall of the filter pipe is clamped with a one-way plate for limiting. One end of the filter pipe is in threaded connection with a positioning ring for limiting, and a window for observation is formed in the side surface of the positioning ring. According to the hydraulic valve block capable of preventing impurity accumulation and blockage, through cooperative arrangement of the backflow pipe, the filter pipe and the filter plate, solid impurities such as metal particles and rubber particles in hydraulic oil can be intercepted more conveniently, the cleanliness of backflow hydraulic oil is guaranteed, the problems of equipment abrasion, oil duct blockage and the like caused by the impurities are reduced, the service life of a hydraulic system is prolonged, and the practicability is high. Meanwhile, by means of the arrangement of the window, a worker can conveniently observe the internal conditions of the filter pipe, including the working state of the filter plate, the cleanliness of hydraulic oil and the like, and a user can maintain the filter pipe in time according to the observed conditions.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve block technology, specifically a hydraulic valve block that prevents impurities from accumulating and clogging. Background Technology

[0002] A hydraulic valve block is a mounting base for hydraulic components, typically in the shape of a cuboid. Hydraulic components are attached to the front or sides of the valve block, usually with the bottom or one of its sides serving as the mounting surface, via fasteners. Several oil holes are drilled inside the valve block according to the flow requirements of the hydraulic system schematic. In other words, a hydraulic valve block is a small circuit that brings together various valves used in principle through the oil holes on the valve block.

[0003] Chinese Patent Publication No. CN215719893U discloses a portable, detachable hydraulic valve block, comprising a valve block with a groove at the bottom and a locking hole on the side wall of the groove. A locking rod is provided on the inner wall of the locking hole, and a movable plate is fixedly connected to the bottom of the locking rod. A movable strip is fixedly connected to the bottom of the movable plate, and a screw is threadedly connected to the middle of the movable strip. A fixing frame is rotatably connected to both ends of the screw. A positioning groove is provided on the top of the fixing frame, and a positioning block is provided on the inner wall of the positioning groove. The top of the positioning block is fixedly connected to the bottom of the valve block, and a connecting rod is fixedly connected to the bottom of the fixing frame. A base frame is slidably connected to the outer wall of the connecting rod. A spring is provided inside the base frame, and a base plate is provided on the top of the spring. The top surface of the base plate is fixedly connected to the bottom end of the connecting rod, facilitating disassembly and assembly and ensuring stable operation of the valve block.

[0004] However, the present invention has the following problems in actual use;

[0005] Existing hydraulic valve blocks are not conducive to filtering the hydraulic oil flowing inside. During long-term use, impurities in the hydraulic oil, such as metal particles, rubber particles, and dust, may accumulate in the oil passages, causing blockages and preventing the corresponding hydraulic circuit from working properly. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydraulic valve block that prevents the accumulation and blockage of impurities, and solves the problem mentioned in the background art that the existing hydraulic valve blocks are not convenient for filtering the hydraulic oil flowing inside, and that impurities in the hydraulic oil, such as metal particles, rubber particles, dust, etc., may accumulate in the oil passage during long-term use of the hydraulic valve block, causing blockage and preventing the corresponding hydraulic circuit from working properly.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a hydraulic valve block for preventing impurity accumulation and blockage, comprising a hydraulic valve block body and a return pipe, one end of the return pipe being bolted to a filter tube for filtration, the inner wall of the filter tube being clamped with a one-way plate for limiting position, one end of the filter tube being threaded to a positioning ring for limiting position, the inner wall of the positioning ring being clamped with a filter plate for filtration, and a viewing window for observation being provided on the side of the positioning ring.

[0010] Preferably, a pivot for limiting is fixedly connected to the side of the one-way plate, and one end of the pivot is engaged with the inner wall of the filter tube.

[0011] Preferably, one end of the rotating shaft is threadedly connected to a fastening cap for limiting position, and the outer surface of the fastening cap is provided with friction texture for anti-slip.

[0012] Preferably, the lower end of the filter tube is snapped with a transmission tube, and one end of the transmission tube is threadedly connected to the side of the hydraulic valve block body.

[0013] Preferably, a threaded post for fastening is inserted into the lower end of the filter tube, the threaded post is threaded through one side of the filter tube and connected to the inner wall of the return pipe, and a nut for fastening is threaded to one end of the threaded post.

[0014] Preferably, the lower end of the hydraulic valve block body is fitted with a support plate, and the upper end of the support plate is fixedly connected with a connecting rod for limiting movement.

[0015] Preferably, the inner wall of the connecting rod is fitted with a telescopic rod for adjustment, and the upper end of the telescopic rod is fixedly connected with a positioning plate for positioning.

[0016] Preferably, a stud for fixing is inserted into the side of the connecting rod, and the stud is threaded through one side of the connecting rod and connected to the inside of the telescopic rod.

[0017] (III) Beneficial Effects

[0018] This utility model provides a hydraulic valve block that prevents the accumulation and blockage of impurities, and has the following beneficial effects:

[0019] This hydraulic valve block, designed to prevent impurity accumulation and clogging, utilizes a combination of a return pipe, filter pipe, and filter plate to more effectively intercept solid impurities in the hydraulic oil, such as metal particles and rubber particles. This ensures the cleanliness of the returned hydraulic oil, reduces equipment wear and oil passage blockage caused by impurities, and extends the service life of the hydraulic system. The viewing window allows operators to easily observe the internal condition of the filter pipe, including the working status of the filter plate and the cleanliness of the hydraulic oil. Users can perform timely maintenance on the filter pipe based on their observations. Furthermore, the one-way plate controls the flow direction of the hydraulic oil within the filter pipe, allowing only unidirectional flow and preventing impurities filtered inside the filter pipe from flowing back into the hydraulic valve block body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the placement plate structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the hydraulic valve block body structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the filter tube structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning ring structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the one-way plate structure of this utility model.

[0026] In the diagram: 1. Hydraulic valve block body; 2. Return pipe; 3. Filter pipe; 4. One-way plate; 5. Positioning ring; 6. Filter plate; 7. Viewing window; 8. Rotary shaft; 9. Fastening cover; 10. Transmission pipe; 11. Threaded stud; 12. Nut; 13. Placement plate; 14. Connecting rod; 15. Telescopic rod; 16. Limiting plate; 17. Stud. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example 1;

[0029] Please see Figures 1 to 6To facilitate the connection between the filter tube 3 and the return pipe 2, this utility model provides a technical solution: a hydraulic valve block for preventing impurity accumulation and clogging. This hydraulic valve block is mainly used in scenarios where various valves are connected together through oil holes on the valve block. It includes a hydraulic valve block body 1 and a return pipe 2. One end of the return pipe 2 is bolted to a filter tube 3 for filtration. The lower end of the filter tube 3 is snapped with a transmission pipe 10. One end of the transmission pipe 10 is threaded to the side of the hydraulic valve block body 1. The lower end of the filter tube 3 is inserted with a fastener. The threaded post 11 is threaded through one side of the filter tube 3 and connected to the inner wall of the return pipe 2. One end of the threaded post 11 is threaded with a nut 12 for fastening. With the help of the transmission pipe 10, it is mainly used to transmit the filtered hydraulic oil to the hydraulic valve block body 1, ensuring that the hydraulic valve block body 1 can receive clean hydraulic oil and thus work normally. With the cooperation of the threaded post 11 and the nut 12, it is mainly used to fasten the connection between the filter tube 3 and the return pipe 2, enhance the stability of the connection, and prevent the filter tube 3 from loosening or falling off during the operation of the hydraulic system.

[0030] Example 2;

[0031] Please see Figures 1 to 5 In order to make the one-way plate 4 snap into the inside of the filter tube 3, the inner wall of the filter tube 3 is snapped with the one-way plate 4 for limiting. The side of the one-way plate 4 is fixedly connected with the rotating shaft 8 for limiting. One end of the rotating shaft 8 is snapped into the inner wall of the filter tube 3. The other end of the rotating shaft 8 is threadedly connected with the fastening cover 9 for limiting. The outer surface of the fastening cover 9 is provided with friction texture for anti-slip. One end of the filter tube 3 is threadedly connected with the positioning ring 5 for limiting. The inner wall of the positioning ring 5 is snapped with the filter plate 6 for filtering. With the help of the rotating shaft 8, the one-way plate 4 can rotate to realize the control of the one-way flow of hydraulic oil. The fastening cover 9 is threadedly connected to one end of the rotating shaft 8, which can limit the rotating shaft 8, prevent it from loosening, and ensure the normal operation of the one-way plate 4.

[0032] Example 3;

[0033] Please see Figures 1 to 4 The side of the positioning ring 5 is provided with a viewing window 7 for observation. The lower end of the hydraulic valve block body 1 is snapped with a support plate 13. The upper end of the support plate 13 is fixedly connected with a connecting rod 14 for limiting. The inner wall of the connecting rod 14 is inserted with a telescopic rod 15 for adjustment. The upper end of the telescopic rod 15 is fixedly connected with a positioning plate 16. The side of the connecting rod 14 is inserted with a stud 17 for fixing. The stud 17 passes through one side of the connecting rod 14 and is threaded into the inside of the telescopic rod 15.

[0034] The placement plate 13 serves to support the hydraulic valve block body 1, ensuring its stable position during installation and use and preventing displacement due to external forces or vibrations. Simultaneously, the connecting rod 14 and the telescopic rod 15 facilitate the adjustment of the height of the limiting plate 16, ensuring that the limiting plate 16 and the placement plate 13 reach a suitable height, thereby limiting the hydraulic valve block body 1. The stud 17 further secures the adjusted telescopic rod 15.

[0035] In this invention, the working steps of the device are as follows:

[0036] First, after the operator connects the hydraulic valve block body 1 to the external equipment, the hydraulic oil begins to flow back through the return pipe 2. The returned hydraulic oil first enters the filter pipe 3 connected to it. The hydraulic oil passes through the filter plate 6, which is clamped to the inner wall of the positioning ring 5. The filter plate 6 intercepts solid impurities in the hydraulic oil, such as metal particles and rubber particles, thereby ensuring the cleanliness of the returned hydraulic oil and reducing the entry of impurities into the hydraulic valve block body 1 and other parts of the subsequent hydraulic system. The clean hydraulic oil filtered by the filter pipe 3 is transmitted to the hydraulic valve block body 1 through the transmission pipe 10 connected to the lower end of the filter pipe 3. At the same time, the operator can observe the internal condition of the filter pipe 3 through the viewing window 7 opened on the side of the positioning ring 5, check the working status of the filter plate 6, whether there is too much impurity accumulation, whether the filter plate 6 is blocked, and the cleanliness of the hydraulic oil.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic valve block for preventing impurity accumulation and blockage, comprising a hydraulic valve block body (1) and a return pipe (2), characterized in that: One end of the return pipe (2) is connected to a filter pipe (3) for filtration by bolts. The inner wall of the filter pipe (3) is fitted with a one-way plate (4) for limiting. One end of the filter pipe (3) is threaded to a positioning ring (5) for limiting. The inner wall of the positioning ring (5) is fitted with a filter plate (6) for filtration. The side of the positioning ring (5) is provided with a viewing window (7) for observation.

2. The hydraulic valve block for preventing impurity accumulation and blockage according to claim 1, characterized in that: The side of the one-way plate (4) is fixedly connected to a rotating shaft (8) for limiting the position, and one end of the rotating shaft (8) is engaged with the inner wall of the filter tube (3).

3. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 2, characterized in that: One end of the rotating shaft (8) is threadedly connected to a fastening cover (9) for limiting the position, and the outer surface of the fastening cover (9) is provided with friction texture for anti-slip.

4. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 1, characterized in that: The lower end of the filter tube (3) is snapped with a transmission tube (10), and one end of the transmission tube (10) is threaded to the side of the hydraulic valve block body (1).

5. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 1, characterized in that: The lower end of the filter tube (3) is fitted with a threaded post (11) for fastening. The threaded post (11) passes through one side of the filter tube (3) and is threaded to the inner wall of the return pipe (2). One end of the threaded post (11) is threaded to a nut (12) for fastening.

6. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 1, characterized in that: The lower end of the hydraulic valve block body (1) is fitted with a support plate (13), and the upper end of the support plate (13) is fixedly connected with a connecting rod (14) for limiting position.

7. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 6, characterized in that: The inner wall of the connecting rod (14) is fitted with a telescopic rod (15) for adjustment, and the upper end of the telescopic rod (15) is fixedly connected with a positioning plate (16) for positioning.

8. A hydraulic valve block for preventing impurity accumulation and blockage according to claim 7, characterized in that: The side of the connecting rod (14) is fitted with a stud (17) for fixing, and the stud (17) is threaded through one side of the connecting rod (14) and connected to the inside of the telescopic rod (15).

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