Stacked hydraulic valve

Abstract

The utility model discloses a stacked hydraulic valve which comprises a hydraulic valve body, a liquid inlet and a liquid outlet of the hydraulic valve body are both connected with quick connecting structures, and sealing structures are arranged in inner cavities of the liquid inlet and the liquid outlet of the hydraulic valve body and correspond to the quick connecting structures. The quick connecting structure comprises a fixed pipeline, and the quick connecting structure is arranged in the stacked hydraulic valve, so that the stacked hydraulic valve can be quickly connected by utilizing the fixed pipeline and the connecting pipeline in the quick connecting structure through the interaction of the fixed pipeline, the connecting pipeline and all parts. By means of the design that the fixed pipeline and the connecting pipeline can be rapidly connected, the fixed pipeline and the connecting pipeline can be rapidly connected, the device is more convenient to use, and therefore the problem that the fixed pipeline and the connecting pipeline cannot be rapidly connected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a superimposed hydraulic valve. Background Art

[0002] The stacking valve is a type of hydraulic valve. Compared with traditional hydraulic valves, the biggest feature of the stacking valve is that it can achieve the purpose of system installation without the use of piping, thus reducing the leakage, vibration and noise of the system. Compared with traditional pipe connections, the stacking valve does not require special installation skills and is very convenient for changing the function of the hydraulic system. Since no piping is required, the overall reliability of the system is enhanced, and it is convenient for daily inspection and maintenance. The stacking valve can be applied to various industrial hydraulic systems, such as injection molding machine hydraulic systems, CNC machine tool hydraulic systems, metallurgical equipment hydraulic systems, etc.

[0003] During the use of the current stacked hydraulic valve, it is not convenient to connect the conduits to each other, which makes the device not very convenient to use. At the same time, the current stacked hydraulic valve will leak oil during long-term use. Utility Model Content

[0004] In order to solve the problem of inconvenient connection between conduits, which affects the normal operation of the stacked hydraulic valve, the utility model provides a stacked hydraulic valve to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A superimposed hydraulic valve comprises a hydraulic valve body, a liquid inlet and a liquid outlet of the hydraulic valve body are both connected with a quick connection structure, and a sealing structure is arranged in the inner cavity of the liquid inlet and the liquid outlet of the hydraulic valve body and corresponds to the quick connection structure;

[0007] The quick connection structure includes a fixed pipe, which is connected to the liquid inlet and outlet of the hydraulic valve body. A connecting pipe is arranged in the inner cavity of the fixed pipe, and a fixed connecting rod is symmetrically connected to the side wall of the connecting pipe. A connecting groove is opened on the side wall of the fixed pipe corresponding to the fixed connecting rod. A fixing buckle is arranged on the side wall of the fixed pipe corresponding to the fixed connecting rod. A rotating bracket is connected to the fixing buckle, and a fixed shaft is arranged on the side wall of the fixed pipe corresponding to the rotating bracket. A fixed handle is connected to the side wall of the rotating bracket. A fixing spring is connected to the side wall of the rotating bracket via a connecting seat. The other end of the fixing spring is connected to the side wall of the fixed pipe via a connecting seat. A fixing nut is connected between the fixed pipe and the connecting pipe.

[0008] The sealing structure includes a lifting spring connected to the inner cavity of the fixed pipe, one end of the lifting spring is connected to a sealing rubber ring located inside the connecting pipe, and a plurality of sets of sealing rings are correspondingly arranged on the side wall of the connecting pipe in contact with the sealing rubber ring.

[0009] As a preferred solution of the utility model, the inner wall of the fixed pipe and the outer wall of the connecting pipe are matched in a clearance fit, and the connecting groove is an L-shaped structure, wherein the connecting groove and the fixed connecting rod are matched in a clearance fit.

[0010] As a preferred solution of the utility model, a fixing slot is arranged on the fixing buckle and corresponds to the fixing connecting rod, wherein the fixing connecting rod and the fixing slot are matched in a clearance fit.

[0011] As a preferred solution of the utility model, a connecting hole is arranged on the rotating bracket and corresponds to the fixed shaft, wherein the connection mode between the fixed shaft and the connecting hole is a rotating connection.

[0012] As a preferred solution of the utility model, a plurality of anti-slip grooves are arranged on the end surface of the fixed handle, and a retaining ring is arranged on the side wall of the connecting pipe and corresponds to the fixing nut.

[0013] As a preferred solution of the utility model, a fixing thread is arranged on the side wall of the fixed pipe and corresponds to the fixing nut, wherein the fixing nut and the fixing thread are connected by threaded connection, and an anti-slip strip is arranged on the side wall of the fixing nut.

[0014] As a preferred solution of the utility model, the cooperation mode between the side wall of the inner cavity of the fixed pipe and the lifting spring is a clearance cooperation, and the cooperation mode between the side wall of the inner cavity of the fixed pipe and the sealing rubber ring is a clearance cooperation.

[0015] As a preferred solution of the utility model, the sealing rubber ring is a convex structure, and the matching mode between the connecting pipe and the sealing rubber ring is a clearance fit.

[0016] The utility model is provided with a quick connection structure, thereby utilizing the fixed pipe and the connecting pipe in the quick connection structure, and through the interaction between the fixed pipe and the connecting pipe and various components, the fixed pipe and the connecting pipe are designed to be quickly connected, so that during the use of the superimposed hydraulic valve, the fixed pipe and the connecting pipe can be quickly connected to each other, making the device more convenient during use, thereby solving the problem that the fixed pipe and the connecting pipe cannot be quickly connected.

[0017] The utility model is provided with a sealing structure, thereby utilizing a lifting spring, a sealing rubber ring and a sealing retaining ring in the sealing structure, and improving the sealing performance between a fixed pipeline and a connecting pipeline through the interaction between the lifting spring, the sealing rubber ring, the sealing retaining ring and various components, so that during the use of the superimposed hydraulic valve, leakage of hydraulic oil can be prevented, the sealing performance of the device is improved, and the problem of hydraulic oil leakage is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0020] Figure 3 This is a schematic diagram of the structure of the quick connection structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the explosion structure;

[0022] Figure 5 This is a schematic diagram of the sealing structure of the utility model.

[0023] In the figure: 1. hydraulic valve body; 2. quick connection structure; 3. sealing structure; 201. fixed pipe; 202. connecting pipe; 203. fixed connecting rod; 204. connecting groove; 205. fixed buckle; 206. rotating bracket; 207. fixed shaft; 208. fixed handle; 209. fixed spring; 210. fixed nut; 301. lifting spring; 302. sealing rubber ring; 303. sealing retaining ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] For example, please refer to Figure 1-5 , the utility model provides a technical solution:

[0026] A superimposed hydraulic valve comprises a hydraulic valve body 1, a liquid inlet and a liquid outlet of the hydraulic valve body 1 are both connected to a quick connection structure 2, and a sealing structure 3 is arranged in the inner cavity of the liquid inlet and the liquid outlet of the hydraulic valve body 1 and corresponding to the quick connection structure 2.

[0027] In this embodiment, reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The quick connection structure 2 includes a fixed pipe 201, which is connected to the liquid inlet and the liquid outlet of the hydraulic valve body 1. A connecting pipe 202 is arranged in the inner cavity of the fixed pipe 201. A fixed connecting rod 203 is symmetrically connected to the side wall of the connecting pipe 202. A connecting groove 204 is provided on the side wall of the fixed pipe 201 and corresponds to the fixed connecting rod 203. A fixing buckle 205 is provided on the side wall of the fixed pipe 201 and corresponds to the fixed connecting rod 203. A rotating bracket 206 is connected to the fixing buckle 205. A fixed shaft 207 is provided on the side wall of the fixed pipe 201 and corresponds to the rotating bracket 206. A fixed handle 208 is connected to the side wall of the rotating bracket 206. A fixing spring 209 is connected to the side wall of the rotating bracket 206 through a connecting seat. The other end of the fixing spring 209 is connected to the side wall of the fixed pipe 201 through a connecting seat. A fixing nut 210 is connected between the fixed pipe 201 and the connecting pipe 202.

[0028] Based on the above structure and the connection relationship of the above structure, during use, first insert the connecting pipe 202 into the inner cavity of the fixed pipe 201, and rotate the connecting pipe 202 so that the connecting groove 204 and the fixed connecting rod 203 cooperate with each other, and then manually rotate the fixed connecting rod 203 so that the fixed card groove on the fixing buckle 205 is clamped on the side wall of the fixed connecting rod 203, thereby making the fixed pipe 201 and the connecting pipe 202 cooperate with each other, and then fix the fixed pipe 201 and the connecting pipe 202 to each other through the fixing nut 210, thereby completing the assembly between the connecting pipe 202 and the fixed pipe 201.

[0029] The inner wall of the fixed pipe 201 and the outer wall of the connecting pipe 202 are matched in a clearance fit, and the connecting groove 204 is an L-shaped structure, wherein the connecting groove 204 and the fixed connecting rod 203 are matched in a clearance fit, and a fixed card slot is arranged on the fixing buckle 205 and corresponds to the fixed connecting rod 203, wherein the fixing connecting rod 203 and the fixed card slot are matched in a clearance fit, and a connecting hole is arranged on the rotating bracket 206 and corresponds to the fixed shaft 207, wherein the connection mode between the fixed shaft 207 and the connecting hole is a rotating connection, and a plurality of groups of anti-slip grooves are arranged on the end face of the fixed handle 208, and a retaining ring is arranged on the side wall of the connecting pipe 202 and corresponds to the fixing nut 210, and a fixing thread is arranged on the side wall of the fixed pipe 201 and corresponds to the fixing nut 210, wherein the connection mode between the fixing nut 210 and the fixing thread is a threaded connection, and anti-slip ribs are arranged on the side wall of the fixing nut 210, so that the device is more convenient when in use.

[0030] In this embodiment, reference Figure 1 , Figure 2 and Figure 5 The sealing structure 3 includes a lifting spring 301, which is connected to the inner cavity of the fixed pipe 201. One end of the lifting spring 301 is connected to a sealing rubber ring 302 located inside the connecting pipe 202. A plurality of sealing retaining rings 303 are correspondingly arranged on the side wall of the connecting pipe 202 in contact with the sealing rubber ring 302.

[0031] Based on the above structure and the connection relationship of the above structure, during use, the connecting pipe 202 and the sealing rubber ring 302 are tightly closed to prevent leakage of hydraulic oil; the side wall of the inner cavity of the fixed pipe 201 and the lifting spring 301 are matched in a clearance fit, and the side wall of the inner cavity of the fixed pipe 201 and the sealing rubber ring 302 are matched in a clearance fit. The sealing rubber ring 302 is a convex structure, and the connecting pipe 202 and the sealing rubber ring 302 are matched in a clearance fit, which makes the device smoother when in use.

[0032] When using the superimposed hydraulic valve, first, the inner wall of the fixed pipe 201 and the outer wall of the connecting pipe 202 are matched in a clearance fit, and the connecting groove 204 is an L-shaped structure, wherein the matching mode of the connecting groove 204 and the fixed connecting rod 203 is a clearance fit. The connecting pipe 202 is inserted into the inner cavity of the fixed pipe 201, and the connecting pipe 202 is rotated so that the connecting groove 204 and the fixed connecting rod 203 are matched with each other. A fixed card slot is provided on the fixing buckle 205 and corresponds to the fixed connecting rod 203, wherein the matching mode of the fixed connecting rod 203 and the fixed card slot is a clearance fit, and a connecting hole is provided on the rotating bracket 206 and corresponds to the fixed shaft 207, wherein the fixed shaft 2 07 Under the condition that the connection mode with the connecting hole is a rotational connection, the fixed connecting rod 203 is manually rotated so that the fixed slot on the fixing buckle 205 is clamped on the side wall of the fixed connecting rod 203, thereby the fixed pipe 201 and the connecting pipe 202 are matched with each other, and a retaining ring is arranged on the side wall of the connecting pipe 202 and corresponds to the fixing nut 210, and a fixing thread is arranged on the side wall of the fixed pipe 201 and corresponds to the fixing nut 210, wherein the connection mode between the fixing nut 210 and the fixing thread is a threaded connection, and the side wall of the fixing nut 210 is provided with an anti-slip strip, so that the fixed pipe 201 and the connecting pipe 202 are fixed to each other through the fixing nut 210.

[0033] At the same time, the cooperation mode between the side wall of the inner cavity of the fixed pipe 201 and the lifting spring 301 is a clearance fit, and the cooperation mode between the side wall of the inner cavity of the fixed pipe 201 and the sealing rubber ring 302 is a clearance fit. The sealing rubber ring 302 is a convex structure. Under the condition that the cooperation mode between the connecting pipe 202 and the sealing rubber ring 302 is a clearance fit, the connecting pipe 202 and the sealing rubber ring 302 are tightly closed, thereby preventing leakage of hydraulic oil.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A superimposed hydraulic valve, comprising a hydraulic valve body (1), characterized in that: The liquid inlet and the liquid outlet of the hydraulic valve body (1) are both connected to a quick connection structure (2), and a sealing structure (3) is provided in the inner cavity of the liquid inlet and the liquid outlet of the hydraulic valve body (1) and corresponding to the quick connection structure (2); The quick connection structure (2) comprises a fixed pipe (201), the fixed pipe (201) being connected to a liquid inlet and a liquid outlet of a hydraulic valve body (1), a connecting pipe (202) being arranged in an inner cavity of the fixed pipe (201), a fixed connecting rod (203) being symmetrically connected to a side wall of the connecting pipe (202), a connecting groove (204) being arranged on the side wall of the fixed pipe (201) and corresponding to the fixed connecting rod (203), a fixing buckle (205) being arranged on the side wall of the fixed pipe (201) and corresponding to the fixed connecting rod (203), and the A rotating bracket (206) is connected to the fixing buckle (205); a fixing shaft (207) is provided on the side wall of the fixing pipe (201) and corresponds to the rotating bracket (206); a fixing handle (208) is connected to the side wall of the rotating bracket (206); a fixing spring (209) is connected to the side wall of the rotating bracket (206) via a connecting seat; the other end of the fixing spring (209) is connected to the side wall of the fixing pipe (201) via a connecting seat; and a fixing nut (210) is connected between the fixing pipe (201) and the connecting pipe (202).

2. A superimposed hydraulic valve according to claim 1, characterized in that: The sealing structure (3) comprises a lifting spring (301), the lifting spring (301) being connected to the inner cavity of the fixed pipe (201), one end of the lifting spring (301) being connected to a sealing rubber ring (302) located inside the connecting pipe (202), and a plurality of sets of sealing retaining rings (303) being correspondingly arranged on the side wall of the connecting pipe (202) in contact with the sealing rubber ring (302).

3. A superimposed hydraulic valve according to claim 1, characterized in that: The inner wall of the fixed pipe (201) and the outer wall of the connecting pipe (202) are matched in a clearance fit, and the connecting groove (204) is an L-shaped structure, wherein the connecting groove (204) and the fixed connecting rod (203) are matched in a clearance fit.

4. A superimposed hydraulic valve according to claim 1, characterized in that: A fixing slot is provided on the fixing buckle (205) and corresponds to the fixing connecting rod (203), wherein the fixing connecting rod (203) and the fixing slot are matched in a clearance fit.

5. The superimposed hydraulic valve according to claim 1, characterized in that: A connection hole is provided on the rotating bracket (206) and corresponds to the fixed shaft (207), wherein the fixed shaft (207) and the connection hole are connected in a rotating manner.

6. A superimposed hydraulic valve according to claim 1, characterized in that: A plurality of groups of anti-slip grooves are arranged on the end surface of the fixed handle (208), and a retaining ring is arranged on the side wall of the connecting pipe (202) and corresponds to the fixing nut (210).

7. The superimposed hydraulic valve according to claim 1, characterized in that: A fixing thread is provided on the side wall of the fixing pipe (201) and corresponds to the fixing nut (210), wherein the fixing nut (210) and the fixing thread are connected in a threaded manner, and an anti-slip strip is provided on the side wall of the fixing nut (210).

8. The superimposed hydraulic valve according to claim 2, characterized in that: The cooperation mode between the inner cavity side wall of the fixed pipe (201) and the lifting spring (301) is a clearance cooperation mode, and the cooperation mode between the inner cavity side wall of the fixed pipe (201) and the sealing rubber ring (302) is a clearance cooperation mode.

9. A superimposed hydraulic valve according to claim 2, characterized in that: The sealing rubber ring (302) is a convex structure, and the connection pipe (202) and the sealing rubber ring (302) are matched in a clearance fit.

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