Electric control hydraulic servo valve

Abstract

The utility model relates to an electrically-controlled hydraulic servo valve, which aims to solve the technical problem that a wire harness plug is easy to fall off when a wire harness is pulled by external force after the current wire harness plug is plugged with an interface of the electrically-controlled hydraulic servo valve, and comprises an electrically-controlled hydraulic servo valve body of which one side is detachably provided with a connecting part, the connecting component comprises a socket assembly detachably connected to the electronic control hydraulic servo valve body and a plug assembly detachably connected to the socket assembly, the socket assembly comprises a socket body, slope grooves are formed in the outer edge face of the socket body in an annular array mode, and the slope grooves extend towards the interior of the socket body and are provided with clamping grooves. The plug assembly comprises a plug seat, the outer edge surface of the plug seat is provided with an anti-falling component which can elastically expand and deform in an annular array structure, the anti-falling component comprises an elastic anti-falling plate, one end of the elastic anti-falling plate is provided with an L-shaped buckle plate, and the L-shaped buckle plate is movably clamped in the clamping groove and plays an anti-falling role. The utility model has the advantage of improving the connection stability of the plug assembly and the jack assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of servo valves, in particular to an electronically controlled hydraulic servo valve. Background Art

[0002] The servo valve is a component mainly used for electro-hydraulic conversion. It can convert tiny electrical signals into high-power hydraulic energy output. The electromagnetic torque, spring tube counter-torque, feedback rod counter-torque and other forces on its performance have a great influence on the electro-hydraulic control system. Therefore, it is the core and key of the electro-hydraulic control system. A typical servo valve consists of a permanent magnet torque motor, a nozzle, a baffle, a valve core, a valve sleeve and a control chamber. Servo valves are widely used in electro-hydraulic position, velocity acceleration, force servo systems, and servo vibration generators. It has the characteristics of small size, compact structure, high power amplification factor, high control accuracy,

[0003] It has the advantages of good linearity, small dead zone, high sensitivity, good dynamic performance and fast response speed.

[0004] The electrically controlled hydraulic servo valve is mainly controlled by electricity and driven by hydraulics to perform its work. Before use, it needs to connect the wiring harness, that is, insert the wiring harness plug into the interface of the electrically controlled hydraulic servo valve to provide it with electrical energy and power control. The interface between the traditional wiring harness plug and the electrically controlled hydraulic servo valve is a direct plug-in connection. When the wiring harness is pulled by external force, it is easy to cause the wiring harness plug to fall off, thereby affecting the stability of the connection between the plug and the socket. In view of this, we propose an electrically controlled hydraulic servo valve. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide an electronically controlled hydraulic servo valve to solve the technical problem that the wiring harness plug is easily detached when the wiring harness is pulled by external force after the current wiring harness plug is plugged into the interface of the electronically controlled hydraulic servo valve.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing an electronically controlled hydraulic servo valve, including an electronically controlled hydraulic servo valve body with a connecting component detachably installed on one side;

[0007] The connecting component comprises a socket assembly detachably connected to the electric-controlled hydraulic servo valve body and a plug assembly detachably connected to the socket assembly;

[0008] The socket assembly comprises a socket body with an annular array of ramp grooves on the outer edge surface, and the ramp grooves extend toward the socket body to form a clamping groove;

[0009] The plug assembly comprises a plug socket on the outer edge of which is provided with elastically expandable and deformable anti-dropping components in an annular array structure;

[0010] The anti-slip component comprises an elastic anti-slip plate with an L-shaped buckle plate at one end. The L-shaped buckle plate can be movably clamped in the clamping groove and has an anti-slip effect.

[0011] Preferably, a rubber pressure block with a sloped surface is constructed on the end of the outer edge surface of the elastic anti-slip plate facing the plug socket, a threaded portion is constructed on the outer edge surface of the plug socket, and a locking ring is threadedly installed on the outer edge surface of the plug socket in cooperation with the threaded portion for movably squeezing the rubber pressure block to exert a compression effect on the elastic anti-slip plate, a threaded groove matching the threaded portion is provided on one end of the inner edge surface of the locking ring, and an annular groove is provided on the other end of the inner edge surface of the locking ring.

[0012] Preferably, the bottom corners of the snap-in groove are formed with rounded corner grooves 2, and the top corners of both sides of the inner wall of the slope groove are formed with rounded corner grooves 1.

[0013] Preferably, a second rounded corner portion matching with the second rounded corner groove is formed at a corner of one end of the L-shaped buckle plate, and a first rounded corner portion is formed at a corner where the other end of the L-shaped buckle plate is connected to the elastic anti-slip plate.

[0014] Preferably, one end of the socket body is integrally connected with a mounting seat, and pins are arranged inside the socket body, one end of the plug socket is fixedly connected with a plug body that is adapted to the pins and can be detachably and movably installed in the socket body, and a wiring harness is arranged inside the other end of the plug socket.

[0015] Preferably, bolts are arranged at four corners of a side of the mounting seat facing the socket body, and one side of the mounting seat is detachably abutted against the electric-controlled hydraulic servo valve body, and the bolts are spirally passed through the mounting seat and screwed into the electric-controlled hydraulic servo valve body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting an anti-dropping component, when the plug assembly and the socket assembly are directly plugged in, the L-shaped buckle plate can abut the end of the socket body and expand and deform outward. As the plug assembly is gradually inserted into the socket assembly, the L-shaped buckle plate abuts against the sloped groove, and the plug assembly can be pulled outward. Under the elastic force of the elastic anti-dropping plate and the guiding action of the sloped groove, the L-shaped buckle plate can be inserted into the snap-in groove, thereby achieving an anti-dropping effect on the connection between the plug assembly and the socket assembly through the plug-in cooperation between the L-shaped buckle plate and the snap-in groove, thereby preventing the plug assembly from falling off when the wiring harness is pulled by external force, which is beneficial to improving the stability of the connection between the plug assembly and the socket assembly.

[0018] 2. By providing a locking ring and a rubber pressure block, after the L-shaped buckle plate is inserted into the snap-fit ​​groove, the locking ring can be rotated to move the locking ring toward the anti-slip component through the threaded groove and the threaded portion. As a result, the inner edge surface of the locking ring continuously pushes the rubber pressure block, so that the rubber pressure block is subjected to pressure, thereby achieving a clamping effect on the elastic anti-slip plate, which is beneficial to further improve the stability of the anti-slip connection between the L-shaped buckle plate and the snap-fit ​​groove. The slope surface of the rubber pressure block can also play an anti-slip effect after abutting against the inner edge surface of the locking ring, thereby maintaining the stability of the clamping effect on the elastic anti-slip plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the plug assembly and the socket assembly of the utility model in a matching state;

[0021] Figure 3 It is a cross-sectional view of the socket assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the disassembly of the plug assembly of the utility model;

[0023] Figure 5 It is a cross-sectional view of the anti-dropping component of the utility model.

[0024] In the figure: 1. Electric-controlled hydraulic servo valve body; 2. Connecting parts; 3. Socket assembly; 301. Mounting seat; 302. Bolt; 303. Socket body; 304. Pin; 305. Slope groove; 306. Rounded corner groove one; 307. Rounded corner groove two; 308. Snap-in groove; 4. Plug assembly; 401. Plug seat; 402. Plug body; 403. Wiring harness; 404. Threaded part; 405. Locking ring; 406. Annular groove; 407. Threaded groove; 5. Anti-slipping part; 501. Elastic anti-slipping plate; 502. Rubber pressure block; 503. L-shaped buckle plate; 504. Rounded corner part one; 505. Rounded corner part two. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0026] An electrically controlled hydraulic servo valve, see Figure 1-Figure 5, including an electric-controlled hydraulic servo valve body 1 with a connecting component 2 detachably installed on one side, the connecting component 2 includes a socket component 3 detachably connected to the electric-controlled hydraulic servo valve body 1 and a plug component 4 detachably connected to the socket component 3, the socket component 3 includes a socket body 303 with a ramp groove 305 in an annular array on the outer edge surface, the ramp groove 305 extends toward the socket body 303 and is provided with a clamping groove 308, the plug assembly 4 includes a plug seat 401 with an anti-slip component 5 that can be elastically expanded and deformed in an annular array on the outer edge surface, the anti-slip component 5 includes an elastic anti-slip plate 501 with an L-shaped buckle plate 503 at one end, and the L-shaped buckle plate 503 can be movably clamped in the clamping groove 308 and has an anti-slip effect.

[0027] See also Figure 4 and Figure 5 A rubber pressure block 502 with a sloped surface is constructed on one end of the outer edge of the elastic anti-slip plate 501 facing the plug socket 401, and a threaded portion 404 is constructed on the outer edge of the plug socket 401, and a locking ring 405 is threadedly installed on the outer edge of the plug socket 401 to cooperate with the threaded portion 404 to movably squeeze the rubber pressure block 502 to tighten the elastic anti-slip plate 501, a threaded groove 407 matched with the threaded portion 404 is opened on one end of the inner edge surface of the locking ring 405, and an annular groove 406 is opened on the other end of the inner edge surface of the locking ring 405.

[0028] See also Figure 3 and Figure 5 The bottom corners of the snap-in groove 308 are formed with rounded grooves 307, the top corners of the inner wall of the slope groove 305 are formed with rounded grooves 306, one end of the L-shaped buckle plate 503 is formed with rounded corners 505 matched with the rounded grooves 307, and the other end of the L-shaped buckle plate 503 is connected to the elastic anti-slip plate 501 at the corner where the rounded corner 504 is formed.

[0029] See also Figure 1 , Figure 3 and Figure 4, one end of the socket body 303 is integrally connected with the mounting seat 301, and the socket body 303 is provided with a pin 304, one end of the plug seat 401 is fixedly connected with a plug body 402 adapted to the pin 304 and detachably and movably plugged and installed in the socket body 303, and the other end of the plug seat 401 is internally provided with a wiring harness 403, and the mounting seat 301 is provided with bolts 302 at four corners of the side facing the socket body 303, and one side of the mounting seat 301 is detachably abutted against the electric-controlled hydraulic servo valve body 1, and the bolts 302 are spirally passed through the mounting seat 301 and screwed into the electric-controlled hydraulic servo valve body 1. The utility model solves the technical problem that the current wiring harness plug is easily caused to fall off when the wiring harness is pulled by external force after the wiring harness plug is plugged into the interface of the electric-controlled hydraulic servo valve by providing an anti-drop component 5.

[0030] Working principle: When in use, first insert one end of the plug body 402 into the socket body 303. During the insertion process, the end of the L-shaped buckle plate 503 abuts against the end of the socket body 303 and expands outward, so that the elastic anti-slip plate 501 away from the end of the L-shaped buckle plate 503 is elastically deformed. As the plug body 402 continues to be inserted into the socket body 303, the L-shaped buckle plate 503 abuts against the slope groove 305, and the plug assembly 4 can be pulled outward. Under the elastic force of the elastic anti-slip plate 501 and the guiding effect of the slope groove 305, the L-shaped buckle plate 503 can be inserted into the snap-in groove 308, thereby The anti-slip effect of the plug assembly 4 and the socket assembly 3 after being connected is achieved through the plug-in cooperation between the L-shaped buckle plate 503 and the snap-in groove 308. At the same time, the plug-in effect of the L-shaped buckle plate 503 and the snap-in groove 308 is improved through the adaptability of the rounded corner portion 505 and the rounded corner groove 307. Then, by rotating the locking ring 405, the locking ring 405 is moved toward the anti-slip component 5 through the threaded cooperation between the threaded groove 407 and the threaded portion 404, so that the inner edge surface of the locking ring 405 continuously pushes the rubber pressure block 502, so that the rubber pressure block 502 is subjected to pressure, thereby having a tightening effect on the elastic anti-slip plate 501.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An electronically controlled hydraulic servo valve, characterized in that: It comprises an electrically controlled hydraulic servo valve body (1) with a connecting component (2) detachably mounted on one side; The connecting component (2) comprises a socket assembly (3) detachably connected to the electric-controlled hydraulic servo valve body (1) and a plug assembly (4) detachably connected to the socket assembly (3); The socket assembly (3) comprises a socket body (303) having an annular array of ramp grooves (305) on its outer edge surface, wherein the ramp grooves (305) extend toward the inside of the socket body (303) and are provided with a clamping groove (308); The plug assembly (4) comprises a plug seat (401) having an anti-dropping component (5) that can elastically expand and deform and is arranged in a ring array structure on the outer edge surface; The anti-slip component (5) comprises an elastic anti-slip plate (501) having an L-shaped buckle plate (503) at one end. The L-shaped buckle plate (503) can be movably snap-fitted into the snap-fitting groove (308) and has an anti-slip effect.

2. An electronically controlled hydraulic servo valve as claimed in claim 1, characterized in that: The outer edge of the elastic anti-slip plate (501) is provided with a rubber pressure block (502) with a sloped surface at one end facing the plug socket (401), and the outer edge of the plug socket (401) is provided with a threaded portion (404), and the outer edge of the plug socket (401) is threadedly mounted with a locking ring (405) for movably squeezing the rubber pressure block (502) to achieve a pressing effect on the elastic anti-slip plate (501), and the inner edge of the locking ring (405) is provided with a threaded groove (407) matching the threaded portion (404) at one end, and an annular groove (406) is provided at the other end of the inner edge of the locking ring (405).

3. An electronically controlled hydraulic servo valve as claimed in claim 1, characterized in that: The bottom corners of the clamping groove (308) are formed with rounded corner grooves (307), and the top corners of both sides of the inner wall of the slope groove (305) are formed with rounded corner grooves (306).

4. An electrically controlled hydraulic servo valve as claimed in claim 3, characterized in that: The corner structure of one end of the L-shaped buckle plate (503) is formed with a second rounded corner portion (505) adapted to the second rounded corner groove (307), and the corner structure of the other end of the L-shaped buckle plate (503) connected to the elastic anti-slip plate (501) is formed with a first rounded corner portion (504).

5. The electronically controlled hydraulic servo valve according to claim 1, characterized in that: One end of the socket body (303) is integrally connected with a mounting seat (301), and a pin (304) is arranged inside the socket body (303); one end of the plug seat (401) is fixedly connected with a plug body (402) adapted to the pin (304) and detachably and movably plugged and installed in the socket body (303), and a wiring harness (403) is arranged inside the other end of the plug seat (401).

6. An electrically controlled hydraulic servo valve as claimed in claim 5, characterized in that: Bolts (302) are arranged at four corners of a side of the mounting seat (301) facing the socket body (303), and one side of the mounting seat (301) is detachably abutted against the electric-controlled hydraulic servo valve body (1), and the bolts (302) are screwed through the mounting seat (301) and screwed into the electric-controlled hydraulic servo valve body (1).

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