Hydraulic valve block assembly with high sealing performance

Abstract

The high-sealing-performance hydraulic valve block assembly comprises a valve block valve body, connecting pipes are connected to the two sides of the valve block valve body correspondingly, connecting pipe joints are connected to the ends, away from the valve block valve body, of the connecting pipes, and a pressing connecting groove is formed in the top of the valve block valve body; a pressing connecting groove is formed in the inner side of the base, a fixed connecting groove is formed in the inner side of the pressing connecting groove, a connecting inserting groove is formed in the inner side of the fixed connecting groove, a pressing locking block is arranged in the pressing connecting groove, four sets of fixed clamping blocks which are symmetrical in pairs are inserted in the fixed connecting groove, and a plurality of sets of fixed balls are arranged between the pressing locking block and the fixed clamping blocks at equal intervals; a sealing insertion block is inserted into the connecting insertion groove, and a top seat is connected into the sealing insertion block; the top seat can be rapidly taken out of the valve block valve body, the top seat and the valve block valve body are tightly connected, the sealing performance is good, and the possibility that the top seat falls off due to shaking can be avoided.

Description

Technical Field

[0001] The present application relates to the field of hydraulic valve blocks, and more particularly, to a hydraulic valve block assembly with high sealing performance. Background Art

[0002] The hydraulic valve block is an important component of the electro-hydraulic servo control system. It is used to control the operation of the hydraulic oil. Its working principle is based on the operation of the hydraulic solenoid valve. The hydraulic solenoid valve has a closed cavity with through holes at different positions. Each hole is connected to a different oil pipe.

[0003] After searching, the existing patent (application number CN202220121950.X) discloses a high-sealing hydraulic valve block assembly. The high-sealing hydraulic valve block assembly includes a valve body, a top seat is provided on the valve body, a sealing gasket is provided at the bottom of the top seat, the bottom of each sealing gasket is fixedly connected to a mounting plate, a groove is provided on one side of the mounting plate, and a mounting groove is provided inside the valve body. A T-block is slidably connected to one side of the inner wall of the mounting groove, and a limit spring is provided on one side of the T-block. One end of the limit spring is provided inside the mounting groove. On one side, through the T-block and the groove, the top seat is pulled down from the outside, so that the groove on the mounting plate squeezes the T-block and slides apart, thereby completing the disassembly between the top seat and the valve body, facilitating internal cleaning. The disassembly is completed by replacing the insertion rod, which is simple to operate and easy to use. In the process of realizing this application, the inventor found that the existing technology has the following problems:

[0004] The existing high-sealing hydraulic valve block, which separates the top seat by sliding, may still slide due to shaking, and the gaps in the sliding part may allow impurities to enter, which may cause the sealing gasket to be loose, thus affecting the sealing performance of the valve block and valve body;

[0005] Therefore, in order to solve the above problems, a hydraulic valve block assembly with high sealing performance is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a hydraulic valve block assembly with high sealing performance to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present application provides the following technical solutions: a highly sealing hydraulic valve block assembly, comprising a valve block valve body, both sides of the valve block valve body being connected to connecting pipes, and an end of the connecting pipe away from the valve block valve body being connected to a connecting pipe joint, a press-connecting groove being provided on the top of the valve block valve body, a fixed connecting groove being provided on the inner side of the press-connecting groove, and a connecting plug groove being provided on the inner side of the fixed connecting groove;

[0008] Among them, a press locking block is provided in the press connection groove, and four groups of two-way symmetrical fixed clamping blocks are inserted in the fixed connection groove, multiple groups of fixed balls are arranged equidistantly between the press locking block and the fixed clamping block, a sealing plug-in block is inserted in the connection plug-in groove, and a top seat is connected to the sealing plug-in block.

[0009] Preferably, a pressing spring is connected between the pressing locking block and the pressing connecting groove, a fixed ball groove is provided on the side of the pressing locking block close to the fixed connecting groove, and a sealing protrusion and an extrusion protrusion are respectively provided on the upper and lower sides of the fixed ball groove.

[0010] Preferably, a sealing gasket is provided on one side of the fixing clamp block close to the pressing connection groove, and the sealing gasket and the sealing protrusion are fitted with each other, and an extrusion ball groove is provided below the sealing gasket.

[0011] Preferably, the fixed ball groove and the extrusion ball groove are both slidably connected to the fixed ball, and the fixed ball groove and the extrusion ball groove are staggered with each other in the vertical direction.

[0012] Preferably, a spring connecting groove is provided below the extrusion ball groove, and four groups of the spring connecting grooves are interconnected, and opening and closing springs connected end to end are connected in the four groups of the spring connecting grooves.

[0013] Preferably, the inner side of the fixing clamp block is in contact with the sealing plug-in block, and the outer side of the sealing plug-in block is sleeved with a dustproof gasket and a rubber sealing ring.

[0014] The technical effects and advantages of this application are:

[0015] 1. Compared with the prior art, this high-sealing hydraulic valve block assembly can quickly remove the top seat from the valve block valve body, and the top seat and the valve block valve body are tightly connected, with good sealing, and can also avoid the possibility of falling off due to shaking. When removing the top seat, first press the pressing lock block to fix or loosen the fixed clamping block, and press the pressing lock block to squeeze the pressing spring to slide in the fixed connection groove. When the pressing lock block is pressed, the fixed ball groove moves in the direction close to the squeezing ball groove, and when the fixed ball groove moves to be flush with the squeezing ball groove, the fixed ball groove is connected to the squeezing ball groove, and the fixed ball is squeezed by the squeezing spring. The ball slot moves into the fixed ball slot, and at this time the four groups of extruded fixing clamps are no longer squeezed by the fixed ball. When the extruded fixing clamps are no longer squeezed by the fixed ball, the four groups of extruded fixing clamps can slide and move in the connecting plug-in slot through the opening and closing springs in the spring connecting slot, and the sealing plug-in can be freely inserted or removed from the plug-in connecting slot. When the pressing lock block is released, the pressing lock block is restored by the elastic force of the pressing spring, and at this time the fixed ball squeezes the four groups of fixing clamps toward the sealing plug-in block, and at this time the four groups of fixing clamps can be retracted inwardly by the opening and closing springs, thereby completing the clamping and fixing of the sealing plug-in block by the four groups of fixing clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the overall structure of the application from above;

[0018] Figure 3 This is a schematic diagram of the structure of the press-connection groove of this application;

[0019] Figure 4 This is a schematic structural diagram of the side section of the fixed clamping block of this application.

[0020] The accompanying drawings are marked as follows: 1. Valve block and valve body; 11. Connecting pipe; 12. Connecting pipe joint; 13. Pressing connecting groove; 14. Fixed connecting groove; 141. Fixed ball; 15. Connecting plug-in groove; 2. Pressing lock block; 21. Pressing spring; 22. Sealing protrusion; 23. Fixed ball groove; 24. Extrusion protrusion; 3. Top seat; 4. Sealing plug-in block; 41. Dustproof gasket; 42. Rubber sealing ring; 5. Fixed clamp block; 51. Sealing gasket; 52. Extrusion ball groove; 53. Spring connecting groove; 531. Opening and closing spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] Example 1

[0023] As attached Figures 1 to 4 A high-sealing hydraulic valve block assembly is shown, comprising a valve block valve body 1, with connecting pipes 11 connected to both sides of the valve block valve body 1, and a connecting pipe joint 12 connected to the end of the connecting pipe 11 away from the valve block valve body 1. A pressing connection groove 13 is provided on the top of the valve block valve body 1, and a fixed connection groove 14 is provided inside the pressing connection groove 13, and a connecting plug groove 15 is provided inside the fixed connection groove 14;

[0024] Among them, a press lock block 2 is provided in the press connection groove 13, and four groups of two-symmetrical fixed clamping blocks 5 are inserted in the fixed connection groove 14, and multiple groups of fixed balls 141 are equidistantly arranged between the press lock block 2 and the fixed clamping block 5. A sealing plug-in block 4 is inserted in the connecting plug-in groove 15, and the top seat 3 is connected to the sealing plug-in block 4. The valve block valve body 1 is connected to the pipeline system through the connecting pipe 11 and the connecting pipe joint 12 connected thereto. When cleaning the valve block valve body 1, it is necessary to separate the top seat 3 and the sealing plug-in block 4 at its bottom from the plug-in connection groove 15 in the valve block valve body 1, and when removing the top seat 3, first press the press lock block 2 to fix or loosen the fixed clamping block 5.

[0025] As a preferred embodiment, a pressing spring 21 is connected between the pressing locking block 2 and the pressing connecting groove 13, and a fixed ball groove 23 is provided on the side of the pressing locking block 2 close to the fixed connecting groove 14, and a sealing protrusion 22 and an extrusion protrusion 24 are respectively provided on the upper and lower sides of the fixed ball groove 23; further, the pressing locking block 2 is pressed to squeeze the pressing spring 21 to slide in the fixed connecting groove 14.

[0026] As a preferred embodiment, a sealing gasket 51 is provided on one side of the fixed clamp block 5 close to the pressing connection groove 13, and the sealing gasket 51 and the sealing protrusion 22 fit together, and an extrusion ball groove 52 is provided below the sealing gasket 51; further, when the pressing lock block 2 is in the initial position, the fixing ball 141 is located in the extrusion ball groove 52 of the fixed clamp block 5, and at this time the sealing gasket 51 and the sealing protrusion 22 fit together, sealing the pressing connection groove 13 and the fixed connection groove 14, thereby preventing impurities from entering the pressing connection groove 13 and the fixed connection groove 14, and at this time the extrusion protrusion 24 squeezes the fixing ball 141 and the extrusion ball groove 52 it fits, thereby causing the extrusion fixing clamp block 5 to squeeze and press the sealing plug-in block 4, thereby completing the limiting fixation of the position of the sealing plug-in block 4 and the top seat 3 connected thereto.

[0027] As a preferred embodiment, the fixed ball groove 23 and the extrusion ball groove 52 are both slidingly connected to the fixed ball 141, and the fixed ball groove 23 and the extrusion ball groove 52 are staggered with each other in the vertical direction; further, when the locking block 2 is pressed, the fixed ball groove 23 moves toward the extrusion ball groove 52, and when the fixed ball groove 23 moves to be flush with the extrusion ball groove 52, the fixed ball groove 23 is connected to the extrusion ball groove 52, and the fixed ball 141 moves from the extrusion ball groove 52 to the fixed ball groove 23, and the four groups of extrusion fixing clamps 5 are no longer squeezed by the fixed ball 141.

[0028] As a preferred embodiment, a spring connecting groove 53 is provided below the extrusion ball groove 52, and the four groups of spring connecting grooves 53 are interconnected, and the four groups of spring connecting grooves 53 are connected with opening and closing springs 531 connected end to end; further, when the extrusion fixing clamp 5 is no longer squeezed by the fixing ball 141, the four groups of extrusion fixing clamps 5 can slide and move in the connecting plug-in groove 15 through the opening and closing springs 531 in the spring connecting groove 53, and at this time, the sealing plug-in block 4 can be freely inserted or removed from the plug-in connecting groove 15, and when the pressing lock block 2 is released, the pressing lock block 2 is restored by the elastic force of the pressing spring 21, and at this time, the four groups of fixing clamps 5 are squeezed by the fixing ball 141 toward the direction of the sealing plug-in block 4, and at this time, the four groups of fixing clamps 5 can be retracted inwardly through the opening and closing springs 531, thereby completing the clamping and fixing of the sealing plug-in block 4 by the four groups of fixing clamps 5.

[0029] As a preferred embodiment, the inner side of the fixed clamp block 5 is in contact with the sealing plug-in block 4, and the outer side of the sealing plug-in block 4 is sleeved with a dustproof gasket 41 and a rubber sealing ring 42; further, when the sealing plug-in block 4 is inserted into the plug-in connection groove 15, the dustproof gasket 41 and the rubber sealing ring 42 seal the gap between the sealing plug-in block 4 and the plug-in connection groove 15 to prevent impurities from entering the gap.

[0030] The working process of the present application is as follows: first, the valve block valve body 1 is connected to the pipeline system through the connecting pipe 11 and the connecting pipe joint 12 connected thereto. When cleaning the valve block valve body 1, it is necessary to separate the top seat 3 and the sealing plug 4 at its bottom from the plug-in connection groove 15 in the valve block valve body 1. When the pressing lock block 2 is in the initial position, the fixing ball 141 is located in the squeezing ball groove 52 of the fixing clamping block 5, and at this time the sealing gasket 51 and the sealing protrusion 22 fit together, sealing the pressing connection groove 13 and the fixing connection groove 14, thereby preventing impurities from entering the pressing connection groove 13 and the fixing connection groove 14, and at this time the squeezing protrusion 24 squeezes the fixing ball 141 and the squeezing ball groove 52 it fits, thereby causing the squeezing fixing clamping block 5 to squeeze and press the sealing plug 4, thereby completing the limiting and fixing of the position of the sealing plug 4 and the top seat 3 connected thereto.

[0031] When the top seat 3 is taken out, the pressing lock block 2 is first pressed to fix or loosen the fixing clamp 5, and the pressing lock block 2 is pressed to squeeze the pressing spring 21 to slide in the fixed connection groove 14. When the pressing lock block 2 is pressed, the fixed ball groove 23 moves in the direction close to the squeezing ball groove 52, and when the fixed ball groove 23 moves to be flush with the squeezing ball groove 52, the fixed ball groove 23 is connected to the squeezing ball groove 52, and the fixing ball 141 moves from the squeezing ball groove 52 to the fixed ball groove 23, and the four groups of squeezing fixing clamps 5 are no longer squeezed by the fixed balls 141. 1, the four groups of extrusion fixing clamps 5 can slide and move in the connecting plug-in groove 15 through the opening and closing springs 531 in the spring connecting groove 53, and at this time the sealing plug-in block 4 can be freely inserted or removed from the plug-in connecting groove 15, and when the pressing lock block 2 is released, the pressing lock block 2 is restored by the elastic force of the pressing spring 21, and at this time the four groups of fixing clamps 5 are squeezed by the fixed ball 141 toward the sealing plug-in block 4, and at this time the four groups of fixing clamps 5 can be retracted inwardly by the opening and closing springs 531, thereby completing the clamping and fixing of the sealing plug-in block 4 by the four groups of fixing clamps 5. The above is the working principle of this high-sealing hydraulic valve block assembly.

Claims

1. A hydraulic valve block assembly with high sealing performance, comprising a valve block valve body (1), characterized in that: Both sides of the valve block valve body (1) are connected to connecting pipes (11), and one end of the connecting pipe (11) away from the valve block valve body (1) is connected to a connecting pipe joint (12), a pressing connection groove (13) is provided on the top of the valve block valve body (1), and a fixed connection groove (14) is provided on the inner side of the pressing connection groove (13), and a connecting plug groove (15) is provided on the inner side of the fixed connection groove (14); The pressing connection groove (13) is provided with a pressing lock block (2), and the fixed connection groove (14) is plugged with four groups of two-by-two symmetrical fixed clamping blocks (5), multiple groups of fixed balls (141) are arranged at equal intervals between the pressing lock block (2) and the fixed clamping block (5), a sealing plug-in block (4) is plugged into the connection plug-in groove (15), and a top seat (3) is connected to the sealing plug-in block (4).

2. The high-sealing hydraulic valve block assembly according to claim 1, characterized in that: A pressing spring (21) is connected between the pressing lock block (2) and the pressing connection groove (13); a fixed ball groove (23) is provided on one side of the pressing lock block (2) close to the fixed connection groove (14); and a sealing protrusion (22) and an extrusion protrusion (24) are respectively provided on the upper and lower sides of the fixed ball groove (23).

3. The high-sealing hydraulic valve block assembly according to claim 2, characterized in that: A sealing gasket (51) is provided on one side of the fixed clamp block (5) close to the pressing connection groove (13), and the sealing gasket (51) and the sealing protrusion (22) are fitted with each other, and an extrusion ball groove (52) is provided below the sealing gasket (51).

4. The high-sealing hydraulic valve block assembly according to claim 3, characterized in that: The fixed ball groove (23) and the extrusion ball groove (52) are both slidably connected to the fixed ball (141), and the fixed ball groove (23) and the extrusion ball groove (52) are offset from each other in the vertical direction.

5. The high-sealing hydraulic valve block assembly according to claim 3, characterized in that: A spring connecting groove (53) is provided below the squeezing ball groove (52), and four groups of the spring connecting grooves (53) are interconnected. The four groups of the spring connecting grooves (53) are connected with opening and closing springs (531) connected end to end.

6. The high-sealing hydraulic valve block assembly according to claim 1, characterized in that: The inner side of the fixed clamp block (5) is fitted with the sealing insert block (4), and the outer side of the sealing insert block (4) is sleeved with a dustproof gasket (41) and a rubber sealing ring (42).

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