An overflow valve

Abstract

The utility model relates to related technical field of hydraulic system especially relates to a kind of overflow valve, including overflow valve main body, the outside surface of overflow valve main body is provided with fixed mechanism, the inside surface of overflow valve main body is provided with filter assembly.This kind of overflow valve, through the setting of fixed mechanism, realizes the quick fixing and disassembly of oil inlet pipe, not only improves work efficiency, but also ensures the stability of oil inlet pipe and overflow valve main body connection, effectively solve the oil leakage problem, enhance the use performance of overflow valve, simultaneously, the setting of filter assembly, fluid into overflow valve can be finely filtered, effectively intercept and remove the impurity in fluid, avoid the potential damage of impurity to overflow valve internal component, thereby prolong the service life of overflow valve.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic systems, and in particular to an overflow valve. Background Technology

[0002] The function of a hydraulic system is to increase force by changing pressure. A complete hydraulic system consists of five parts: power element, actuator, control element, auxiliary element, and hydraulic oil. Hydraulic systems can be divided into two categories: hydraulic transmission systems and hydraulic control systems. Hydraulic transmission systems primarily transmit power and motion, while hydraulic control systems ensure that the hydraulic system output meets specific performance requirements. The term "hydraulic system" usually refers to hydraulic transmission systems. The relief valve, as a key control element in a hydraulic system, is mainly used to regulate and stabilize system pressure and prevent system overload. In a hydraulic transmission system, when the system pressure exceeds a preset value, the relief valve automatically opens, allowing excess hydraulic oil to flow back to the tank, thus protecting the system from damage. To improve installation and operational efficiency, a relief valve is particularly needed.

[0003] The installation and disassembly of the inlet and outlet pipes are cumbersome during hydraulic system pressure regulation via the relief valve. This not only increases operational difficulty but also affects work efficiency, leading to extended operation time and increased installation costs. The time and effort required for installation and disassembly of the inlet and outlet pipes not only delays work progress but also increases component wear due to frequent disassembly and assembly, thus raising equipment maintenance costs. Therefore, traditional solutions often involve using threaded or flanged connections for fixation. However, threaded connections are prone to loosening over time, leading to oil leaks, while flanged connections, due to their complex installation steps and the need for specialized tools and skills, increase installation difficulty and time costs. Utility Model Content

[0004] The purpose of this invention is to provide an overflow valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an overflow valve, comprising an overflow valve body, wherein a fixing mechanism is provided on the outer surface of the overflow valve body, and a filter assembly is provided on the inner surface of the overflow valve body;

[0006] The fixing mechanism includes a fixing block, a limiting post, a sliding groove, a spring, a slider, a locking block, a connecting post, a button, a buckle, and an extension plate. The fixing block is fixedly connected to the outer surface of the overflow valve body. The limiting post is fixedly connected to the inner surface of the fixing block. A sliding groove is formed on the inner surface of the limiting post. A spring is provided inside the sliding groove. One end of the spring is connected to a slider. A locking block is fixedly connected to the inner surface of the fixing block. One end of the locking block is connected to a connecting post. One end of the connecting post is connected to a button. A buckle is provided on the outer surface of the locking block. One end of the buckle is connected to an extension plate. The overflow valve body is fixedly connected to the outer surface of the extension plate.

[0007] Preferably, the filter assembly includes a mounting block, a mounting groove, a fixing plate, screws, a connecting plate, a filter screen, and a through groove. The mounting block is fixedly connected to the outer surface of the overflow valve body. The mounting block has a mounting groove on its outer surface. The fixing plate is provided on the inner surface of the mounting groove. Screws are installed on the outer surface of the fixing plate. The connecting plate is fixedly connected to the outer surface of the fixing plate. One end of the connecting plate is connected to a filter screen. The through groove is provided on the inner surface of the mounting block.

[0008] Preferably, the overflow valve body includes a valve body, a pressure regulating handle, an oil inlet pipe, and an oil outlet pipe. The pressure regulating handle is connected to the outer surface of the valve body, the oil inlet pipe is connected to the outer surface of the valve body, and the oil outlet pipe is connected to the outer surface of the valve body.

[0009] Preferably, the outer surfaces of the oil inlet pipe and the oil outlet pipe are provided with fixing grooves, and the inner surfaces of the fixing grooves are fitted with sealing rings.

[0010] Preferably, the spring and the slider form a telescopic structure, and the inner surface of the groove matches the outer surface of the slider.

[0011] Preferably, the inner surface of the mounting groove matches the outer surface of the fixing plate, and the outer surface of the connecting plate matches the inner surface of the through groove.

[0012] Preferably, screws are evenly spaced on the outer surface of the fixing plate, and the screws penetrate the fixing plate and connect to the mounting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This overflow valve, through the setting of the fixing mechanism, realizes the quick fixing and disassembly of the oil inlet pipe, which not only improves working efficiency, but also ensures the stability of the connection between the oil inlet pipe and the overflow valve body, effectively solves the oil leakage problem, and enhances the performance of the overflow valve. At the same time, the setting of the filter component can finely filter the fluid entering the overflow valve, effectively intercept and remove impurities in the fluid, avoid the potential damage of impurities to the internal components of the overflow valve, and thus extend the service life of the overflow valve. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0015] Figure 2 This is a bottom view of the overall appearance of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model;

[0018] Figure 5 This utility model Figure 4 A magnified structural diagram at point A.

[0019] In the diagram: 1. Overflow valve body; 11. Valve body; 12. Pressure regulating handle; 13. Oil inlet pipe; 14. Oil outlet pipe; 2. Fixing mechanism; 21. Fixing block; 22. Limiting post; 23. Slide groove; 24. Spring; 25. Slider; 26. Locking block; 27. Connecting post; 28. Button; 29. ​​Buckle; 210. Extension plate; 3. Filter assembly; 31. Mounting block; 32. Mounting groove; 33. Fixing plate; 34. Screw; 35. Connecting plate; 36. Filter screen; 37. Through groove; 4. Fixing groove; 5. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, those skilled in the art who have not made any innovative embodiments are all within the protection scope of the present utility model.

[0021] Please see Figure 1-5 The present invention provides a technical solution: an overflow valve, including an overflow valve body 1, a fixing mechanism 2 is provided on the outer surface of the overflow valve body 1, and a filter assembly 3 is provided on the inner surface of the overflow valve body 1;

[0022] The fixing mechanism 2 includes a fixing block 21, a limiting post 22, a slide groove 23, a spring 24, a slider 25, a locking block 26, a connecting post 27, a button 28, a buckle 29, and an extension plate 210. The fixing block 21 is fixedly connected to the outer surface of the overflow valve body 1. The limiting post 22 is fixedly connected to the inner surface of the fixing block 21. A slide groove 23 is formed on the inner surface of the limiting post 22. A spring 24 is provided inside the slide groove 23. One end of the spring 24 is connected to the slider 25. A locking block 26 is fixedly connected to the inner surface of block 21. One end of the locking block 26 is connected to a connecting post 27, and the other end of the connecting post 27 is connected to a button 28. A buckle 29 is provided on the outer surface of the locking block 26. One end of the buckle 29 is connected to an extension plate 210. An overflow valve body 1 is fixedly connected to the outer surface of the extension plate 210. The valve body 1 is connected to the locking block 21, the limiting post 22, the slide groove 23, the spring 24, the slider 25, the locking block 26, the connecting post 27, the button 28, and the buckle 29. With the extension plate 210 in place, during use, the oil inlet pipe 13 is first inserted into the oil inlet of the valve body 11. At this time, the four L-shaped clips 29 on the extension plate 210 at the end of the oil inlet pipe are simultaneously inserted into the four fixing blocks 21 on the end face of the valve body. When the guide slope at the front end of the clip 29 contacts the wedge-shaped surface of the locking block 26, it squeezes the locking block 26 back into the receiving cavity of the fixing block 21. At the same time, the end of the clip 29 pushes the slider 25 to slide axially along the slide groove 23 of the limiting post 22, compressing the spring 24. When the oil inlet pipe 13 is inserted into place, the slot of the clip 29 is aligned with the position of the locking block 26. The locking block 26 pops out under its own elasticity and locks into the slot of the clip 29, completing the axial locking and realizing the quick installation of the oil inlet pipe 13 and the valve body 11. When disassembly is required, simply press the button 28 on the outside of the fixing block 21 simultaneously. The button 28 pushes the locking block 26 into the receiving cavity through the connecting post 27, causing the locking block 26 to disengage from the slot of the latch 29. At this time, the compressed spring 24 restores its deformation, pushing the slider 25 to slide outward along the slide groove 23 axially. The slider 25 pushes the latch 29 outward, causing the oil inlet pipe 13 to exit the valve body simultaneously, completing the quick disassembly. The installation and disassembly process of the oil outlet pipe 14 is exactly the same as that of the oil inlet pipe 13.

[0023] Furthermore, the filter assembly 3 includes a mounting block 31, a mounting groove 32, a fixing plate 33, screws 34, a connecting plate 35, a filter screen 36, and a through groove 37. The mounting block 31 is fixedly connected to the outer surface of the overflow valve body 1. The mounting groove 32 is formed on the outer surface of the mounting block 31. A fixing plate 33 is provided on the inner surface of the mounting groove 32. Screws 34 are installed on the outer surface of the fixing plate 33. A connecting plate 35 is fixedly connected to the outer surface of the fixing plate 33. One end of the connecting plate 35 is connected to the filter screen 36. A through groove 37 is formed on the inner surface of the mounting block 31. Through the arrangement of the mounting block 31, mounting groove 32, fixing plate 33, screws 34, connecting plate 35, filter screen 36, and through groove 37, during use, the connecting plate 35 and the filter screen 36 are first connected... The filter screen 36 is inserted into the oil inlet pipe 13 through the through groove 37. The filter screen 36 can filter the fluid entering the overflow valve body 1, remove impurities, and prevent impurities from damaging the internal parts of the overflow valve body 1, thereby improving the service life of the overflow valve. The fixing plate 33 and screw 34 can fix the connecting plate 35 and the filter screen 36 in the mounting groove 32, preventing the filter screen 36 from shifting or falling off during use, thus ensuring the filtration effect. At the same time, the design of the connecting plate 35 and the filter screen 36 is easy to disassemble and replace. When the filter screen 36 is clogged or damaged, simply unscrew the screw 34 to easily remove the connecting plate 35 and the filter screen 36 from the mounting groove 32 for cleaning or replacement. The operation is simple and quick, improving maintenance efficiency.

[0024] Furthermore, the overflow valve body 1 includes a valve body 11, a pressure regulating handle 12, an oil inlet pipe 13, and an oil outlet pipe 14. The pressure regulating handle 12 is connected to the outer surface of the valve body 11, the oil inlet pipe 13 is connected to the outer surface of the valve body 11, and the oil outlet pipe 14 is connected to the outer surface of the valve body 11.

[0025] Furthermore, a fixing groove 4 is provided on the outer surface of the oil inlet pipe 13 and the oil outlet pipe 14, and a sealing ring 5 is installed on the inner surface of the fixing groove 4. Through the setting of the fixing groove 4, during the sealing process, when the oil inlet pipe 13 is inserted into the valve body 11, the O-ring sealing ring 5, which is fitted in the fixing groove 4 at the end of the oil inlet pipe 13, is radially compressed between the annular sealing groove on the outer wall of the oil inlet pipe 13 and the inner wall of the valve body 1, forming a radial static seal. At the same time, after the fixing mechanism 2 is locked, the extension plate 210 is axially pressed against the end face of the valve body 1, ensuring that the compression of the sealing ring 5 is always stable and avoiding sealing failure caused by loosening of the oil pipe.

[0026] Furthermore, the spring 24 and the slider 25 form a telescopic structure, and the inner surface of the groove 23 matches the outer surface of the slider 25. Through the setting of the spring 24, the telescopic nature of the spring 24 facilitates the quick pop-out of the buckle 29, improving the disassembly efficiency.

[0027] Furthermore, the inner surface of the mounting groove 32 matches the outer surface of the fixing plate 33, and the outer surface of the connecting plate 35 matches the inner surface of the through groove 37. With the mounting groove 32, the connecting plate 35 and the filter screen 36 can be securely installed in the mounting groove 32, preventing the filter screen 36 from shaking or falling off during use, thus further ensuring the filtration effect. At the same time, the design of the mounting groove 32 and the through groove 37 facilitates the insertion and removal of the connecting plate 35 and the filter screen 36, making the disassembly and replacement process simpler and faster.

[0028] Furthermore, screws 34 are evenly distributed on the outer surface of the fixing plate 33. The screws 34 penetrate the fixing plate 33 and connect to the mounting block 31. Through the setting of the fixing plate 33, the fixing plate 33 can firmly fix the connecting plate 35 and the filter screen 36 in the mounting groove 32. The evenly distributed screws 34 increase the stability and reliability of the fixation, prevent the filter screen 36 from being displaced or damaged due to uneven force during use, further improve the filtration effect and the service life of the overflow valve. At the same time, the design of the screws 34 makes it easy to disassemble and install, making the maintenance process simpler and faster.

[0029] Working principle: In actual operation, firstly, the buckle 29 on the outer extension plate 210 of the oil inlet pipe 13 is aligned with the fixing block 21 and inserted. Since the locking block 26 is made of elastic material, when the buckle 29 contacts the locking block 26, the locking block 26 is squeezed and deformed. When the locking block 26 is aligned with the slot on the buckle 29, the locking block 26 returns to its original position and locks into the slot, thereby fixing the oil inlet pipe 13. When disassembly is required, simply press the button 28. The button 28 pushes the locking block 26 to move through the connecting column 27, causing the locking block 26 to disengage from the slot of the buckle 29. At this time, the spring 24 returns to its original state, pushing the slider 25 to slide in the slide groove 23. The slider 25 pops out the buckle 29, thus completing the disassembly process. The fixing mechanism 2 facilitates the fixing and disassembly of the oil inlet pipe 13, improving work efficiency, while ensuring the stability of the connection between the oil inlet pipe 13 and the overflow valve body 1, avoiding problems caused by unstable connection. The oil leakage problem caused by the filter assembly 3 is improved, thus enhancing the performance of the overflow valve. Furthermore, the filter assembly 3 allows for easy access during use. First, the connecting plate 35 and filter screen 36 are inserted into the oil inlet pipe 13 through the through groove 37. The filter screen 36 filters the fluid entering the overflow valve body 1, removing impurities and preventing damage to internal parts, thus extending the valve's lifespan. The fixing plate 33 and screws 34 secure the connecting plate 35 and filter screen 36 within the mounting groove 32, preventing displacement or detachment during use and ensuring filtration efficiency. Additionally, the design of the connecting plate 35 and filter screen 36 facilitates disassembly and replacement. When the filter screen 36 becomes clogged or damaged, simply unscrew the screws 34 to easily remove the connecting plate 35 and filter screen 36 from the mounting groove 32 for cleaning or replacement. This simple and quick operation improves maintenance efficiency.

[0030] 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 relief valve, comprising a relief valve body (1), characterized in that: The outer surface of the overflow valve body (1) is provided with a fixing mechanism (2), and the inner surface of the overflow valve body (1) is provided with a filter assembly (3). The fixing mechanism (2) includes a fixing block (21), a limiting post (22), a slide groove (23), a spring (24), a slider (25), a locking block (26), a connecting post (27), a button (28), a buckle (29), and an extension plate (210). The fixing block (21) is fixedly connected to the outer surface of the overflow valve body (1). The limiting post (22) is fixedly connected to the inner surface of the fixing block (21). The slide groove (23) is opened on the inner surface of the limiting post (22). A spring (24) is provided, one end of which is connected to a slider (25). A locking block (26) is fixedly connected to the inner surface of the fixing block (21). A connecting post (27) is connected to one end of the locking block (26). A button (28) is connected to one end of the connecting post (27). A buckle (29) is provided on the outer surface of the locking block (26). An extension plate (210) is connected to one end of the buckle (29). An overflow valve body (1) is fixedly connected to the outer surface of the extension plate (210).

2. The overflow valve according to claim 1, characterized in that: The filter assembly (3) includes a mounting block (31), a mounting groove (32), a fixing plate (33), screws (34), a connecting plate (35), a filter screen (36), and a through groove (37). The mounting block (31) is fixedly connected to the outer surface of the overflow valve body (1). The mounting groove (32) is provided on the outer surface of the mounting block (31). The fixing plate (33) is provided on the inner surface of the mounting groove (32). Screws (34) are installed on the outer surface of the fixing plate (33). The connecting plate (35) is fixedly connected to the outer surface of the fixing plate (33). The filter screen (36) is connected to one end of the connecting plate (35). The through groove (37) is provided on the inner surface of the mounting block (31).

3. The overflow valve according to claim 1, characterized in that: The overflow valve body (1) includes a valve body (11), a pressure regulating handle (12), an oil inlet pipe (13), and an oil outlet pipe (14). The pressure regulating handle (12) is connected to the outer surface of the valve body (11), the oil inlet pipe (13) is connected to the outer surface of the valve body (11), and the oil outlet pipe (14) is connected to the outer surface of the valve body (11).

4. The overflow valve according to claim 3, characterized in that: The outer surfaces of the oil inlet pipe (13) and the oil outlet pipe (14) are provided with fixing grooves (4), and the inner surfaces of the fixing grooves (4) are provided with sealing rings (5).

5. A relief valve according to claim 1, characterized in that: The spring (24) and the slider (25) form a telescopic structure, and the inner surface of the groove (23) matches the outer surface of the slider (25).

6. A relief valve according to claim 2, characterized in that: The inner surface of the mounting groove (32) matches the outer surface of the fixing plate (33), and the outer surface of the connecting plate (35) matches the inner surface of the through groove (37).

7. A relief valve according to claim 2, characterized in that: The outer surface of the fixing plate (33) is provided with screws (34) at equal intervals, and the screws (34) pass through the fixing plate (33) and connect to the mounting block (31).

8. A relief valve according to claim 4, characterized in that: The inner surface of the fixing groove (4) matches the outer surface of the sealing ring (5), and the outer surface of the locking block (26) matches the inner surface of the buckle (29).

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