Self-locking hydraulic valve

Abstract

This utility model relates to the field of hydraulic valve technology, specifically a self-locking hydraulic valve, comprising: a hydraulic valve body and a mounting base. A positioning protrusion is connected to the bottom wall of the hydraulic valve body, and limiting protrusions are symmetrically connected to the two side walls of the hydraulic valve body. The hydraulic valve body is mounted on the mounting base via a connecting assembly. The positioning of the hydraulic valve body is achieved by inserting the positioning protrusion into the positioning groove on the pad. A movable L-shaped locking plate engages with the side wall of the hydraulic valve body. The limiting protrusions engage with the limiting groove to limit the self-locking hydraulic valve body. Moving the movable plate allows the insertion post to engage with the slot to fix the position of the L-shaped locking plate. Tightening the knob screw fixes the position of the movable plate. Simultaneously, the elastic lever engages with the lever ring groove on the knob screw's circumferential wall to prevent loosening after tightening. The operation is simple, requiring no auxiliary tools, enabling quick installation and setting of the self-locking hydraulic valve body, and improving the efficiency of disassembly and maintenance of the self-locking hydraulic valve body.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve technology, specifically a self-locking hydraulic valve. Background Technology

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressurized oil in a regulating valve and is typically used in combination with a solenoid regulating valve. It can be used for remote control of the on / off states of oil, gas, and water pipeline systems in hydropower stations. It is commonly used in clamping, control, and lubrication circuits. There are direct-acting and pilot-operated types, with the pilot-operated type being more common.

[0003] Chinese patent document CN218954081U discloses a self-locking hydraulic valve, including a valve seat with an oil inlet on the top and a feed inlet and a discharge outlet on the bottom. A valve stem, capable of covering the feed inlet, is slidably mounted inside the valve seat. A sliding assembly is provided between the upper end of the valve stem and the valve seat, and a buffer structure is provided between the side of the valve stem away from the discharge outlet and the valve seat. A limiting assembly is provided between the lower end of the valve stem and the valve seat. A through hole is provided on the valve seat and communicating with the limiting groove, and a threaded neck is provided on the bottom of the valve seat and communicating with the through hole. A cover is threadedly connected to the outside of the threaded neck, and a push block is provided inside the cover, with its upper end extending into the through hole. This invention facilitates limiting and locking the valve stem, preventing displacement and thus ensuring stable medium flow.

[0004] However, in the actual use of hydraulic equipment, the self-locking hydraulic valve may experience some malfunctions due to various factors, which may adversely affect the normal use of the hydraulic equipment. Therefore, it is necessary to disassemble and repair the self-locking hydraulic valve regularly. The existing self-locking hydraulic valve is usually fixed on the equipment by the operator using auxiliary tools to tighten multiple screws evenly. The operation is cumbersome, inconvenient and time-consuming, which affects the efficiency of disassembly and maintenance of the self-locking hydraulic valve. It needs to be improved and optimized. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking hydraulic valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-locking hydraulic valve, comprising: a hydraulic valve body, a mounting base, wherein a positioning protrusion is connected to the bottom wall of the hydraulic valve body, and limiting protrusions are symmetrically connected to the two side walls of the hydraulic valve body, and mounting holes for fixing the mounting base are provided at the four corners of the mounting base; the hydraulic valve body is mounted on the mounting base through a connecting assembly.

[0007] Preferably, the connecting assembly includes a pad, an L-shaped retaining plate, a movable plate, and a knob screw. The pad is connected to the end wall of the mounting base, and a positioning groove is provided at the end of the pad. The hydraulic valve body is engaged with the pad, and the positioning protrusion is inserted into the positioning groove.

[0008] Preferably, trapezoidal grooves are symmetrically provided on the end wall of the mounting base, and a trapezoidal slider is movably engaged in the trapezoidal groove. An L-shaped retaining plate is connected to the end of the trapezoidal slider. A limiting groove is provided on the side wall of the L-shaped retaining plate. The inner side wall of the L-shaped retaining plate is engaged with the side wall of the hydraulic valve body, and the limiting protrusion is inserted into the limiting groove.

[0009] Preferably, a protrusion is connected to the end wall of the mounting base, a guide post is connected to the side wall of the protrusion, the other end of the guide post is fixedly connected to the pad, and the movable plate is movably snapped onto the end wall of the mounting base, and the movable plate is movably sleeved with the guide post.

[0010] Preferably, the movable plate has symmetrically provided insertion posts on its side wall, and the L-shaped card plate has provided slots on its side wall. The insertion posts are inserted into the slots, and the movable plate has threaded screws on its end wall.

[0011] Preferably, the end of the knob screw passes through the movable plate, and the mounting base has an insertion hole. The end of the knob screw is inserted into the insertion hole. The knob screw has a dial plate groove on its peripheral wall. The elastic dial plate is connected and disposed on the side wall of the L-shaped card plate, and the elastic dial plate is engaged with the dial plate groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The hydraulic valve body is positioned and installed by inserting the positioning convex plate into the positioning groove on the pad. The movable L-shaped clamping plate is engaged with the side wall of the hydraulic valve body. The limiting convex plate is inserted into the limiting groove to limit the self-locking hydraulic valve body. After the movable plate is moved to fix the position of the L-shaped clamping plate by inserting the insert into the slot, the knob screw is tightened to fix the position of the movable plate. At the same time, the elastic lever plate is engaged with the lever plate ring groove on the knob screw's circumferential wall to prevent the knob screw from loosening after tightening. The operation is simple and does not require auxiliary tools, realizing the quick installation and setting of the self-locking hydraulic valve body and improving the disassembly and maintenance efficiency of the self-locking hydraulic valve body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of a portion of the image; Figure 3 This is a schematic diagram of the main structure of the hydraulic valve of this utility model; Figure 4 This is a schematic diagram of the mounting base structure connection of this utility model; Figure 5 This is an exploded view of the mounting base structure of this utility model.

[0014] In the diagram: 1. Hydraulic valve body; 2. Mounting base; 3. Positioning convex plate; 4. Limiting convex plate; 5. Mounting hole; 6. Pad; 7. Positioning groove; 8. Trapezoidal slide groove; 9. Trapezoidal slider; 10. L-shaped clamping plate; 11. Limiting groove; 12. Protrusion; 13. Guide post; 14. Moving plate; 15. Insert post; 16. Slot; 17. Knob screw; 18. Insertion hole; 19. Pulley ring groove; 20. Elastic pulley. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figures 1-5 This utility model provides a technical solution: a self-locking hydraulic valve, comprising: a hydraulic valve body 1, a mounting base 2, wherein a positioning protrusion 3 is connected to the bottom wall of the hydraulic valve body 1, and limiting protrusions 4 are symmetrically connected to the two side walls of the hydraulic valve body 1, and mounting holes 5 for fixing the mounting base 2 are opened at the four corners of the mounting base 2; the hydraulic valve body 1 is mounted on the mounting base 2 through a connecting assembly.

[0017] The mounting hole 5 on the mounting base 2 is used to fix the mounting base 2 on the hydraulic equipment. The self-locking hydraulic valve body 1 is removed from the mounting base 2 during disassembly and maintenance.

[0018] The pad 6 in the connecting assembly is connected and installed on the end wall of the mounting base 2. The end of the pad 6 is provided with a positioning groove 7. The hydraulic valve body 1 is snapped into the pad 6, and the positioning protrusion 3 is inserted into the positioning groove 7.

[0019] The self-locking hydraulic valve body 1 is placed on the pad 6, and the positioning protrusion 3 at the bottom of the self-locking hydraulic valve body 1 is inserted into the positioning groove 7 on the pad 6 to achieve the positioning and installation of the self-locking hydraulic valve body 1.

[0020] The mounting base 2 has symmetrical trapezoidal grooves 8 on its end wall. A trapezoidal slider 9 is movably engaged in the trapezoidal groove 8. An L-shaped locking plate 10 is connected to the end of the trapezoidal slider 9. A limiting groove 11 is opened on the side wall of the L-shaped locking plate 10. The inner side wall of the L-shaped locking plate 10 is engaged with the side wall of the hydraulic valve body 1. The limiting protrusion 4 is inserted into the limiting groove 11.

[0021] The trapezoidal slider 9 is movably engaged on the trapezoidal slide groove 8 to facilitate the stable movement of the L-shaped clamping plate 10, which is mounted on the mounting base 2. When the trapezoidal slider 9 moves to the end of the trapezoidal slide groove 8, the inner side wall of the L-shaped clamping plate 10 engages with the side wall of the hydraulic valve body 1. The limiting protrusion 4 on the side wall of the hydraulic valve body 1 is inserted into the limiting groove 11 to achieve the self-locking limitation of the hydraulic valve body 1.

[0022] A protrusion 12 is connected to the end wall of the mounting base 2, and a guide post 13 is connected to the side wall of the protrusion 12. The other end of the guide post 13 is fixedly connected to the pad 6. The movable plate 14 is movably snapped onto the end wall of the mounting base 2, and the movable plate 14 is movably sleeved with the guide post 13. The side wall of the movable plate 14 has symmetrically opened insertion posts 15, and the side wall of the L-shaped clamping plate 10 has opened slots 16. The insertion posts 15 are inserted into the slots 16, and the end wall of the movable plate 14 is threadedly connected with a knob screw 17.

[0023] The bottom end of the movable plate 14 is snapped into the end face of the mounting base 2, and the movable plate 14 is movably sleeved with the guide post 13 to realize the horizontal movement of the movable plate 14 on the mounting base 2. When the L-shaped clamping plate 10 is snapped into the limit hydraulic valve body 1, the insert post 15 on the side wall of the movable plate 14 is inserted into the slot 16 on the L-shaped clamping plate 10 to fix the position of the L-shaped clamping plate 10.

[0024] The end of the knob screw 17 passes through the movable plate 14. The mounting base 2 has an insertion hole 18. The end of the knob screw 17 is inserted into the insertion hole 18. The knob screw 17 has a dial plate groove 19 on its peripheral wall. The elastic dial plate 20 is connected and set on the side wall of the L-shaped card plate 10. The elastic dial plate 20 is engaged with the dial plate groove 19.

[0025] Rotating the knob screw 17 controls its end to move downwards and insert into the insertion hole 18 on the mounting base 2. This is used to fix the position of the moving plate 14 after the insertion post 15 is inserted into the slot 16. The elastic lever 20 engages with the lever ring groove 19 on the knob peripheral wall of the knob screw 17 to prevent the knob screw 17 from loosening after being tightened.

[0026] Working principle: When installing the self-locking hydraulic valve body 1, place the hydraulic valve body 1 on the pad 6 and insert the positioning protrusion 3 at its bottom end into the positioning groove 7 on the pad 6 to complete the positioning and installation of the hydraulic valve body 1. Then, move the L-shaped clamping plate 10 until the inner side wall of the L-shaped clamping plate 10 is engaged with the side wall of the hydraulic valve body 1. At this time, the limiting protrusion 4 on the side wall of the hydraulic valve body 1 is engaged with the limiting groove 11 to achieve the limiting of the self-locking hydraulic valve body 1. Move the moving plate 14 horizontally until the moving plate 14 is engaged with the L-shaped clamping plate 10 to make the moving plate After the insertion post 15 on the side wall of 14 is inserted into the slot 16 on the L-shaped card plate 10 to fix the position of the L-shaped card plate 10, the knob screw 17 is tightened to control its end to move downward and insert into the insertion hole 18 on the mounting base 2 to fix the position of the moving plate 14. At the same time, the elastic lever plate 20 is engaged with the lever plate annular groove 19 on the knob screw 17 to prevent the knob screw 17 from loosening after being tightened. The operation is simple and does not require auxiliary tools, so as to realize the quick installation and setting of the self-locking hydraulic valve body 1 and improve the disassembly and maintenance efficiency of the self-locking hydraulic valve body 1.

[0027] 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 self-locking hydraulic valve, comprising: The hydraulic valve body (1) and the mounting base (2) are provided with a positioning protrusion (3) on the bottom wall of the hydraulic valve body (1) and limit protrusions (4) symmetrically connected to the two side walls of the hydraulic valve body (1). The mounting base (2) has mounting holes (5) for fixing and installing the mounting base (2) at the four corners. The feature is that the hydraulic valve body (1) is installed on the mounting base (2) through a connecting assembly.

2. The self-locking hydraulic valve according to claim 1, characterized in that: The connecting assembly includes a pad (6), an L-shaped clamping plate (10), a movable plate (14), and a knob screw (17). The pad (6) is connected to the end wall of the mounting base (2). A positioning groove (7) is provided at the end of the pad (6). The hydraulic valve body (1) is engaged with the pad (6), and the positioning protrusion (3) is inserted into the positioning groove (7).

3. A self-locking hydraulic valve according to claim 2, characterized in that: The mounting base (2) has symmetrical trapezoidal grooves (8) on its end wall. A trapezoidal slider (9) is movably engaged in the trapezoidal groove (8). An L-shaped locking plate (10) is connected to the end of the trapezoidal slider (9). A limiting groove (11) is opened on the side wall of the L-shaped locking plate (10). The inner side wall of the L-shaped locking plate (10) is engaged with the side wall of the hydraulic valve body (1). The limiting protrusion (4) is inserted into the limiting groove (11).

4. A self-locking hydraulic valve according to claim 3, characterized in that: A protrusion (12) is connected to the end wall of the mounting base (2), and a guide post (13) is connected to the side wall of the protrusion (12). The other end of the guide post (13) is fixedly connected to the pad (6). The movable plate (14) is movably snapped onto the end wall of the mounting base (2), and the movable plate (14) is movably sleeved with the guide post (13).

5. A self-locking hydraulic valve according to claim 4, characterized in that: The movable plate (14) has symmetrically provided inserts (15) on its side wall, and the L-shaped card plate (10) has provided slots (16) on its side wall. The inserts (15) are inserted into the slots (16), and the movable plate (14) has threaded screws (17) on its end wall.

6. A self-locking hydraulic valve according to claim 5, characterized in that: The end of the knob screw (17) passes through the movable plate (14). The mounting base (2) has an insertion hole (18). The end of the knob screw (17) is inserted into the insertion hole (18). The knob screw (17) has a dial ring groove (19) on its peripheral wall. The elastic dial (20) is connected to the side wall of the L-shaped card plate (10). The elastic dial (20) is engaged with the dial ring groove (19).

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