Manual switching-on and switching-off operation structure

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a manual switching-on and switching-off operation structure, which comprises a switching-on and switching-off box body, the right side of the switching-on and switching-off box body is rotatably connected with a handle mechanism, the handle mechanism comprises a connecting shaft, and the connecting shaft is rotatably connected to the right side of the switching-on and switching-off box body. The outer wall of the connecting shaft is fixedly sleeved with a driving arm, and an operation shaft mechanism is fixed to the top end of the opening and closing box body through a bolt and penetrates through the opening and closing box body to be fixed inside the opening and closing box body. According to the utility model, through mutual cooperation of internal parts of the handle mechanism, the problem that the operation of the driving arm is laborious is solved, the rotation of the connecting shaft is locked and limited, the stability of the driving arm is improved, and through mutual cooperation of internal parts of the operation shaft mechanism, a plurality of driving plates are located at two sides of a circuit breaker switching-on and switching-off rod. And the stress uniformity between the driving plate and the circuit breaker switching-on and switching-off rod is improved, so that the switching-on and switching-off operation of the circuit breaker switching-on and switching-off rod is completed.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a manual closing and opening operation structure. Background Technology

[0002] High-voltage switchgear is a key piece of equipment for power transmission and control in the power grid. Stable, reliable, and rapid opening and closing are the basic functions of high-voltage switchgear. Currently, outdoor circuit breakers on the market are basically divided into spring-operated, permanent magnet-operated, and electrically controlled-operated types. Depending on the actual needs of the user, a spring mechanism for manual opening and closing operations must be installed inside the mechanism housing. In spring-operated circuit breakers, the closing operation is achieved by the instantaneous release of pre-stored closing spring energy, which is then held in place by internal components; the opening operation is achieved by the release and tripping of the holding components.

[0003] Traditional circuit breaker switches often employ an eccentric design for manual closing and opening operations. Due to space constraints, the driving crank arm of the closing and opening operating lever is relatively short, resulting in laborious operation. Furthermore, during closing and opening operations, the bending plate experiences significant and uneven stress, leading to low reliability.

[0004] Therefore, it is necessary to propose a manual closing and opening operation structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a manual closing and opening operation structure. Through the mutual cooperation of the internal parts of the handle mechanism, the problem of laborious operation of the drive arm is easily solved, and the rotation of the connecting shaft is easily locked and limited, improving the stability of the drive arm. Through the mutual cooperation of the internal parts of the operating shaft mechanism, multiple drive plates are positioned on both sides of the circuit breaker closing and opening rod, improving the uniformity of force between the drive plates and the circuit breaker closing and opening rod, thereby completing the closing and opening operation of the circuit breaker closing and opening rod. This solves the problem that the existing manual closing and opening operation structures mostly adopt an eccentric type, and due to space constraints, the drive crank arm of the closing and opening operation rod is relatively short, resulting in laborious operation. In addition, during the closing and opening operation, the bending plate is subjected to large and uneven forces, resulting in low reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a manual closing and opening operation structure, including a closing and opening box, a handle mechanism rotatably connected to the right side of the closing and opening box and extending into the interior of the closing and opening box, and an operating shaft mechanism bolted to the top of the closing and opening box and extending through and fixed inside the closing and opening box.

[0007] The handle mechanism includes a connecting shaft, which is rotatably connected to the right side of the closing and opening switch box and slides through into the interior of the closing and opening switch box. A drive arm is sleeved and fixed on the outer wall of the connecting shaft, and a square column is mechanically fixed on the side of the connecting shaft that extends into the interior of the closing and opening switch box.

[0008] The operating shaft mechanism includes multiple circuit breaker devices, which are bolted to the inside of the closing and opening box and extend to the top of the closing and opening box. The bottom of each circuit breaker device is slidably connected to a circuit breaker opening / closing rod via a spring and extends into the inside of the circuit breaker device. An opening / closing operating shaft is welded and rotated inside the closing and opening box and is located at the bottom of the circuit breaker devices and the circuit breaker opening / closing rod. Multiple drive plates are welded and fixed to the outer wall of the opening / closing operating shaft and are located between the bottom of the circuit breaker devices and the circuit breaker opening / closing rod. A connecting plate is welded and fixed to the outer wall of the opening / closing operating shaft, and a torsion spring is mechanically connected between the bottom of the connecting plate and the inner wall of the closing and opening box.

[0009] Preferably, the handle mechanism further includes a limiting ring, which is sleeved and fixed on the outer wall of the connecting shaft and slidably connected to the inside of the closing and opening box. A return spring is mechanically connected between one side of the limiting ring and the inner wall of the closing and opening box. Multiple limiting posts are mechanically connected to the surface of the limiting ring away from the return spring and extend through to the inner wall of the closing and opening box.

[0010] Preferably, the inside of the closing and opening switch box is welded and fixed with multiple connection seats that match the circuit breaker equipment, and the inside of the circuit breaker equipment has an active space that matches the circuit breaker opening and closing rod.

[0011] Preferably, the bottom end of the circuit breaker's opening and closing rod is mechanically connected to a horizontal rod that matches the drive plate, and the interior of the opening and closing box and the surface of the connecting plate are provided with connecting grooves that match the torsion spring, and the inner wall of the opening and closing box is provided with a limiting groove that matches the opening and closing operation shaft.

[0012] Preferably, the right side of the opening and closing operation shaft is provided with a square connecting hole that matches the square column, the inside of the opening and closing switch box is provided with a sliding groove that matches the connecting shaft, and the outer wall diameter of the square column is smaller than that of the connecting shaft.

[0013] Preferably, the inside of the closing / opening switch box is provided with a support groove that matches the limiting ring, and the inner wall of the support groove is provided with a plurality of limiting holes that match the limiting posts. The length of the drive arm is consistent with the width of the side of the closing / opening switch box.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. By having the operator hold the drive arm, and ensuring the length of the drive arm matches the width of the side of the closing / opening switch box, it is easy to extend the length of the drive arm. Utilizing the lever principle, this reduces the difficulty and effort required for operator operation, allowing the operator to easily pull the drive arm away from the closing / opening switch box. This causes the drive arm to move through the connecting shaft, driving the limit ring to compress the reset spring and move it. The limit ring then causes the limit post to separate from the inner wall of the closing / opening switch box, releasing the rotation lock on the connecting shaft. Rotating the drive arm then allows the drive arm to drive the connecting shaft to rotate, which in turn drives the opening / closing operation shaft through the square post. This solves the problem of the drive arm requiring excessive force to operate and facilitates locking and limiting the rotation of the connecting shaft, improving the stability of the drive arm.

[0016] 2. By having the operator hold the drive arm, whose length matches the width of the side of the closing / opening switch box, the length of the drive arm can be increased. Utilizing the lever principle, this reduces the difficulty and effort required for operator operation, allowing the operator to easily pull the drive arm away from the closing / opening switch box. The drive arm, through the connecting shaft, drives the limit ring to compress the reset spring, causing the limit ring to separate from the inner wall of the closing / opening switch box, releasing the rotation lock on the connecting shaft. Rotating the drive arm then drives the connecting shaft to rotate, which in turn drives the opening / closing operation shaft through the square post. This solves the problem of laborious drive arm operation and facilitates locking and limiting the rotation of the connecting shaft, improving the stability of the drive arm. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the opening and closing operation shaft and the opening and closing switch box of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the closing and opening switch box of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a cross-sectional schematic diagram of the connection structure between the circuit breaker device and the circuit breaker opening / closing rod of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Switch box; 2. Handle mechanism; 201. Drive arm; 202. Connecting shaft; 203. Square post; 204. Limit ring; 205. Return spring; 206. Limit post; 3. Operating shaft mechanism; 301. Circuit breaker equipment; 302. Circuit breaker opening / closing lever; 303. Opening / closing operating shaft; 304. Drive plate; 305. Connecting plate; 306. Torsion spring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The manual closing and opening operation structure shown includes a closing and opening box 1. A handle mechanism 2 is rotatably connected to the right side of the closing and opening box 1 and extends into the interior of the closing and opening box 1. An operating shaft mechanism 3 is bolted to the top of the closing and opening box 1 and extends into the interior of the closing and opening box 1.

[0027] The handle mechanism 2 includes a connecting shaft 202, which is rotatably connected to the right side of the closing and opening box 1 and slides through into the interior of the closing and opening box 1. A drive arm 201 is sleeved and fixed on the outer wall of the connecting shaft 202, and a square column 203 is mechanically fixed on the side of the connecting shaft 202 that passes through into the interior of the closing and opening box 1.

[0028] The operating shaft mechanism 3 includes multiple circuit breaker devices 301, which are fixed inside the closing and opening box 1 by bolts and extend to the top of the closing and opening box 1. The bottom end of the circuit breaker device 301 is slidably connected to the circuit breaker opening and closing rod 302 by springs and extends inside the circuit breaker device 301. The opening and closing operating shaft 303 is welded and rotated inside the closing and opening box 1 and is located at the bottom end of the circuit breaker device 301 and the circuit breaker opening and closing rod 302. Multiple drive plates 304 are welded and fixed to the outer wall of the opening and closing operating shaft 303 and are located between the bottom end of the circuit breaker device 301 and the circuit breaker opening and closing rod 302. A connecting plate 305 is welded and fixed to the outer wall of the opening and closing operating shaft 303. A torsion spring 306 is mechanically connected between the bottom end of the connecting plate 305 and the inner wall of the closing and opening box 1.

[0029] By cooperating with each other among the internal parts of the handle mechanism 2, the problem of laborious operation of the drive arm 201 can be solved, and the rotation of the connecting shaft 202 can be locked and limited, thereby improving the stability of the drive arm 201. By cooperating with each other among the internal parts of the operating shaft mechanism 3, multiple drive plates 304 can be positioned on both sides of the circuit breaker opening and closing rod 302, thereby improving the uniformity of force between the drive plates 304 and the circuit breaker opening and closing rod 302, thus completing the opening and closing operation of the circuit breaker opening and closing rod 302.

[0030] Refer to the instruction manual appendix Figure 1-5 The handle mechanism 2 also includes a limit ring 204, which is sleeved and fixed on the outer wall of the connecting shaft 202 and slidably connected to the inside of the closing and opening box 1. A return spring 205 is mechanically connected between one side of the limit ring 204 and the inner wall of the closing and opening box 1. Multiple limit posts 206 are mechanically connected to the surface of the limit ring 204 away from the return spring 205 and penetrate into the inner wall of the closing and opening box 1. Through the mutual cooperation between the internal parts of the handle mechanism 2, the rotation of the connecting shaft 202 can be locked and limited, thereby improving the stability of the drive arm 201.

[0031] Refer to the instruction manual appendix Figure 1-5 The inside of the closing and opening switch box 1 is welded and fixed with multiple connecting seats that match the circuit breaker device 301. The inside of the circuit breaker device 301 is provided with an active space that matches the circuit breaker closing and opening rod 302. The multiple connecting seats that match the circuit breaker device 301 are welded and fixed inside the closing and opening switch box 1, which facilitates the installation and fixing of the circuit breaker device 301 inside the closing and opening switch box 1.

[0032] Refer to the instruction manual appendix Figure 1-5 The bottom end of the circuit breaker opening / closing rod 302 is mechanically connected to a horizontal rod that matches the drive plate 304. The inside of the closing / opening box 1 and the surface of the connecting plate 305 are provided with connecting grooves that match the torsion spring 306. The inner wall of the closing / opening box 1 is provided with a limiting groove that matches the opening / closing operation shaft 303. The bottom end of the circuit breaker opening / closing rod 302 is mechanically connected to a horizontal rod that matches the drive plate 304, so that multiple drive plates 304 can be located on both sides of the circuit breaker opening / closing rod 302 and in contact with the surface of the horizontal rod.

[0033] Refer to the instruction manual appendix Figure 1-5 The right side of the opening and closing operation shaft 303 is provided with a square connecting hole that matches the square column 203. The inside of the opening and closing box 1 is provided with a sliding groove that matches the connecting shaft 202. The outer diameter of the square column 203 is smaller than that of the connecting shaft 202. The sliding groove inside the opening and closing box 1 that matches the connecting shaft 202 and the outer diameter of the square column 203 are smaller than that of the connecting shaft 202 facilitate the movement of the square column 203 by the connecting shaft 202.

[0034] Refer to the instruction manual appendix Figure 1-5 The closing and opening box 1 has a support groove inside that matches the limit ring 204, and the inner wall of the support groove has multiple limit holes that match the limit post 206. The length of the drive arm 201 is the same as the width of the side of the closing and opening box 1. By making the length of the drive arm 201 the same as the width of the side of the closing and opening box 1, it is easy to increase the length of the drive arm 201, and the difficulty of operation by workers is reduced by lever principle.

[0035] The working principle of this practical application is as follows:

[0036] Refer to the instruction manual appendix Figure 1-5 By having the operator hold the drive arm 201, and with the length of the drive arm 201 matching the width of the side of the closing / opening box 1, it is easy to extend the length of the drive arm 201. The lever principle reduces the difficulty and effort required for operation, allowing the operator to easily pull the drive arm 201 away from the closing / opening box 1. This causes the drive arm 201, via the connecting shaft 202, to drive the limit ring 204 to compress the reset spring 205, causing the limit ring 204 to separate from the limit post 206 of the closing / opening box 1, releasing the rotation lock on the connecting shaft 202. Rotating the drive arm 201 then drives the connecting shaft 202 to rotate, which in turn drives the closing / opening operation shaft 303 via the square post 203. This solves the problem of the drive arm 201 requiring significant effort to operate and facilitates locking and limiting the rotation of the connecting shaft 202, improving the stability of the drive arm 201.

[0037] Refer to the instruction manual appendix Figure 1-5 A horizontal bar, matching the drive plate 304, is mechanically connected to the bottom end of the circuit breaker operating rod 302. This allows multiple drive plates 304 to be positioned on both sides of the circuit breaker operating rod 302 and in contact with the surface of the horizontal bar. The drive plates 304 apply equal force to both sides of the circuit breaker operating rod 302 via the horizontal bar. When the connecting shaft 202 drives the operating shaft 303 to rotate via the square column 203, the rotation of the operating shaft 303 drives the drive plates 304 to rotate. The rotation of multiple drive plates 304, through the horizontal bar, can... The circuit breaker operating rod 302 moves stably inside the circuit breaker device 301 to complete the opening and closing operations of the circuit breaker device 301. At the same time, the opening and closing operation shaft 303 rotates and pulls the torsion spring 306 through the connecting plate 305, and the torsion spring 306 can be reset by the connecting plate 305 driving the opening and closing operation shaft 303 to rotate and reset. This improves the uniformity of force between the drive plate 304 and the circuit breaker operating rod 302, thereby completing the opening and closing operations of the circuit breaker operating rod 302 inside the circuit breaker device 301.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A manual closing and opening operation structure, characterized in that: Includes a closing and opening switch box (1), the right side of the closing and opening switch box (1) is rotatably connected to a handle mechanism (2) and extends into the interior of the closing and opening switch box (1), the top of the closing and opening switch box (1) is bolted with an operating shaft mechanism (3) and extends into the interior of the closing and opening switch box (1). The handle mechanism (2) includes a connecting shaft (202), which is rotatably connected to the right side of the closing and opening box (1) and slides through into the interior of the closing and opening box (1). A drive arm (201) is sleeved and fixed on the outer wall of the connecting shaft (202), and a square column (203) is mechanically fixed on one side of the connecting shaft (202) that passes through into the interior of the closing and opening box (1). The operating shaft mechanism (3) includes multiple circuit breaker devices (301), which are bolted to the inside of the closing and opening box (1) and extend to the top of the closing and opening box (1). The bottom end of each circuit breaker device (301) is slidably connected to a circuit breaker closing / opening rod (302) via a spring, extending into the inside of the circuit breaker device (301). A closing / opening operating shaft (303) is welded and rotated inside the closing and opening box (1). Located at the bottom of the circuit breaker device (301) and the circuit breaker opening and closing rod (302), the outer wall of the opening and closing operation shaft (303) is welded and fixed with multiple drive plates (304), and located between the bottom of the circuit breaker device (301) and the circuit breaker opening and closing rod (302). The outer wall of the opening and closing operation shaft (303) is welded and fixed with a connecting plate (305), and the bottom of the connecting plate (305) and the inner wall of the opening and closing box (1) are mechanically connected with a torsion spring (306).

2. The manual closing and opening operation structure according to claim 1, characterized in that: The handle mechanism (2) further includes a limiting ring (204), which is sleeved and fixed on the outer wall of the connecting shaft (202) and slidably connected to the inside of the closing and opening box (1). A return spring (205) is mechanically connected between one side of the limiting ring (204) and the inner wall of the closing and opening box (1). Multiple limiting posts (206) are mechanically connected to the side of the limiting ring (204) away from the return spring (205) and penetrate to the inner wall of the closing and opening box (1).

3. The manual closing and opening operation structure according to claim 1, characterized in that: The inside of the closing and opening switch box (1) is welded and fixed with multiple connecting seats that match the circuit breaker device (301), and the inside of the circuit breaker device (301) is provided with an active space that matches the circuit breaker opening and closing rod (302).

4. The manual closing and opening operation structure according to claim 1, characterized in that: The bottom end of the circuit breaker opening and closing rod (302) is mechanically connected to a horizontal rod that matches the drive plate (304). The inside of the opening and closing box (1) and the surface of the connecting plate (305) are provided with connecting grooves that match the torsion spring (306). The inner wall of the opening and closing box (1) is provided with a limiting groove that matches the opening and closing operation shaft (303).

5. The manual closing and opening operation structure according to claim 1, characterized in that: The right side of the opening and closing operation shaft (303) is provided with a square connecting hole that matches the square column (203), and the inside of the opening and closing box (1) is provided with a sliding groove that matches the connecting shaft (202), and the outer wall diameter of the square column (203) is smaller than that of the connecting shaft (202).

6. The manual closing and opening operation structure according to claim 2, characterized in that: The closing and opening box (1) has a support groove inside that matches the limiting ring (204), and the inner wall of the support groove has multiple limiting holes that match the limiting post (206). The length of the drive arm (201) is the same as the width of the side of the closing and opening box (1).

Images