Switch indicating device

Abstract

The utility model relates to the technical field of isolating switch indicating devices, in particular to a switch indicating device, which comprises a switch box body, a switch operating mechanism is arranged in the switch box body and is connected with the inside of the switch box body through a shaft seat, the switch operating mechanism comprises a guide rail, the guide rail is welded and fixed on the inner wall of the switch box body, and the guide rail is fixed on the inner wall of the switch box body. The surface of the guide rail is slidably connected with a sliding block, and the surface of the switch box body is rotatably connected with a swing device which is located above the switch operating mechanism. According to the utility model, the operating shaft in the switch operating mechanism drives the rotating device crank arm in the device during opening and closing operation, the device crank arm pushes the sliding block to slide along the guide rail through the connecting rod, and then the device crank arm is driven to move and drives the rotating shaft to rotate, so that the pointer is driven to rotate, and opening and closing indication of the switch is completed; compared with a gear transmission structure, the transmission structure is simpler, the abrasion condition is low, and the indication accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of disconnector indicator devices, and specifically to a switch indicator device. Background Technology

[0002] In recent years, with the vigorous development of the power industry, distribution switches have achieved significant improvements in both product structure and performance. As the core of distribution products, pole-mounted switches have undergone major changes in product types and performance. In particular, with the mass production of primary and secondary integrated pole-mounted switches, the level of intelligence of pole-mounted switches has been significantly improved. To ensure the safe operation and maintenance of the products, they are usually used in conjunction with disconnecting switches. Currently, most products adopt an external disconnecting break design, while some products adopt an internal disconnecting break, which not only improves the stability of the disconnecting break but also effectively extends its service life. To ensure the stable operation and safe maintenance of the products, both pole-mounted circuit breakers and disconnecting switches are equipped with switch position indicators to clearly display the switch position and ensure the safety of maintenance and operation.

[0003] Due to the structural characteristics of the built-in disconnector, its isolation contact is invisible. The exact position of the disconnector depends entirely on the switch position indicator and the interlocking mechanism with the circuit breaker. The circuit breaker can only operate when the disconnector is in the correct position and both the mechanical and electrical interlocks are unlocked simultaneously. The mechanical transmission system of the switch indicator originates from the switch operating mechanism. Traditional devices transmit motion to the indicating component through mechanical transmission components such as gears, using the opening and closing action of the operating parts to achieve position indication.

[0004] During mechanical transmission, wear on gears can cause discrepancies between the position indication and the actual open / closed position of the disconnector. Furthermore, damage to transmission components can prevent the position indication device from accurately indicating the switch position.

[0005] Therefore, it is necessary to propose a switch indicator device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a switch indicator device. During the opening and closing operation, the operating shaft within the switch's operating mechanism drives a rotating crank arm within the device. This crank arm, via a connecting rod, pushes a slider along a guide rail, thereby moving the crank arm itself. The crank arm then rotates the rotating shaft, which in turn rotates the pointer, thus indicating the switch's opening and closing position. This transmission structure is simpler than gear transmission structures, with less wear on components, improving the accuracy of the indication. Furthermore, this device, combined with the original opening and closing indicator of the switch, provides two position indicators simultaneously, ensuring the accuracy of the switch position and improving the safety of switch operation and maintenance. This addresses the problem in existing technologies where wear in gear transmissions can cause deviations between the indicated position and the actual opening / closing position of the disconnector switch, and damage to transmission components can easily lead to the position indicator device failing to accurately indicate the switch position.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a switch indicator device, comprising a switch housing, a switch operating mechanism installed inside the switch housing, and a swing device rotatably connected to the surface of the switch housing and located above the switch operating mechanism;

[0008] The switch operating mechanism includes a guide rail, which is fixed to the inner wall of the switch housing, and a slider is slidably connected to the surface of the guide rail;

[0009] The swing device includes a rotating shaft, which is connected to the inside and outside of the switch box via a shaft seat. A pointer is fixed to the outside of the switch box by bolts on the rotating shaft. A swing arm is mechanically fixed to the inside of the switch box on the rotating shaft. A long slot is provided at the far end of the swing arm, which is connected to a sliding pin. The swing arm is sleeved with the outer wall of the sliding pin. One end of the slider is connected to a push rod and is slidably connected to the inner wall of the guide rail.

[0010] Preferably, the switch operating mechanism further includes an operating shaft, which performs the opening and closing operation of the switch. The operating shaft is fixed inside the switch housing. A device crank arm is sleeved and fixed on the outer wall of the operating shaft. A connecting rod is rotatably connected to the top of the device crank arm and the surface of the slider, and the connecting rod and the slider are rotatably connected through a bearing.

[0011] Preferably, the surface of the guide rail is provided with a slide rail that matches the push rod, and the two ends of the connecting rod are rotatably connected to the slider and the device crank arm respectively through bearings.

[0012] Preferably, the rotating shaft is rotatably connected to the switch housing via a bearing, and the surface of the switch housing is equipped with open / closed indicator marks located at both ends of the pointer.

[0013] Preferably, the surface of the sliding pin is mechanically connected to the inner wall of the swing arm with ball bearings, and the top of the sliding pin is configured with a groove that matches the guide rail.

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

[0015] 1. While the circuit breaker inside the switch box is switched on and off by rotating the operating shaft, the rotation of the operating shaft also causes the crank arm of the device to rotate. The rotation of the crank arm pushes the slider to move up and down inside the guide rail via the connecting rod. The slider's movement pushes the push rod to move, and at the same time, the sliding pin is fixed to the top of the push rod. The sliding pin rotates inside the swing arm, causing the push rod to slide and push the sliding pin to move, which in turn causes the swing arm to swing. The swing arm swings and drives the rotating shaft to rotate, which in turn causes the pointer to rotate on the surface of the switch box, completing the switch on / off indication operation. By adding an extra set of on / off indication devices, the problem of the switch position and indication not matching after the wear of the transmission indication device can be solved. At the same time, this transmission structure has a shorter transmission connection, less wear of parts, and improves the accuracy of the device indication. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the switch box of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the switch box and the device crank arm of this utility model.

[0020] Figure 4 This is a schematic diagram of the connection structure between the slider and the swing arm of this utility model;

[0021] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Switch housing; 2. Switch operating mechanism; 201. Operating shaft; 202. Device crank arm; 203. Connecting rod; 204. Guide rail; 205. Slider; 3. Swing device; 301. Rotating shaft; 302. Pointer; 303. Swing arm; 304. Sliding pin; 305. Push rod. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figure 1-4 The switch indicator shown includes a switch housing 1, a switch operating mechanism 2 installed inside the switch housing 1, and a swing device 3 rotatably connected to the surface of the switch housing 1 and located above the switch operating mechanism 2.

[0026] The switch operating mechanism 2 includes a guide rail 204, which is fixed to the inner wall of the switch housing 1, and a slider 205 is slidably connected to the surface of the guide rail 204.

[0027] The swing device 3 includes a rotating shaft 301, which is connected to the inside and outside of the switch box 1 via a shaft seat. A pointer 302 is fixed to the outside of the switch box 1 by bolts. A swing arm 303 is mechanically fixed to the inside of the switch box 1 by the rotating shaft 301. A long slot is provided at the far end of the swing arm 303 to connect to a sliding pin 304. The swing arm 303 is sleeved with the outer wall of the sliding pin 304. One end of the slider 205 is connected to the push rod 305 and is slidably connected to the inner wall of the guide rail 204.

[0028] By cooperating with each other among the internal parts of the switch operating mechanism 2, the slider 205 can slide up and down on the guide rail 204. By cooperating with each other among the internal parts of the swing device 3, the slider 205 can slide and push the swing arm 303 to swing through the push rod 305, thereby driving the pointer 302 to rotate and complete the opening and closing indication of the switch. This transmission structure is simpler than the gear transmission structure, has less wear, and improves the accuracy of the indication.

[0029] Refer to the instruction manual appendix Figure 1-4 The switch operating mechanism 2 also includes an operating shaft 201, which is fixed inside the switch housing 1 and performs the opening and closing operation of the switch. A device crank arm 202 is sleeved and fixed on the outer wall of the operating shaft 201. A connecting rod 203 is rotatably connected to the top of the device crank arm 202 and the surface of the slider 205. The connecting rod 203 and the slider 205 are rotatably connected through a bearing. Through the mutual cooperation between the internal parts of the switch operating mechanism 2, the operating shaft 201 can push the slider 205 to run synchronously with the switch inside the switch housing 1 through the device crank arm 202 and the connecting rod 203.

[0030] Refer to the instruction manual appendix Figure 1-4The surface of the guide rail 204 is provided with a slide rail that matches the push rod 305. The two ends of the connecting rod 203 are rotatably connected to the slider 205 and the device crank arm 202 respectively through bearings. The device crank arm 202 pushes the slider 205 to slide on the guide rail 204 through the connecting rod 203.

[0031] Refer to the instruction manual appendix Figure 1-4 The rotating shaft 301 is rotatably connected to the switch box 1 via bearings. The surface of the switch box 1 is equipped with on / off indicator marks located at both ends of the pointer 302. The on / off indicator marks on the surface of the switch box 1, located at both ends of the pointer 302, facilitate the rotation of the pointer 302 to indicate the on / off state of the switch.

[0032] Refer to the instruction manual appendix Figure 1-4 The surface of the sliding pin 304 is mechanically connected to the inner wall of the swing arm 303 with ball bearings, and the top of the sliding pin 304 is set with a groove that matches the guide rail 204. The ball bearings mechanically connected to the surface of the sliding pin 304 with the inner wall of the swing arm 303 facilitate the rotation of the sliding pin 304 inside the swing arm 303 to drive the swing arm 303 to swing.

[0033] The working principle of this practical application is as follows:

[0034] Refer to the instruction manual appendix Figure 1-4 While the circuit breaker inside the switch box 1 is switched on and off by rotating the operating shaft 201, the rotating operating shaft 201 also causes the crank arm 202 of the device to rotate. The rotation of the crank arm 202 pushes the slider 205 to slide up and down inside the guide rail 204 through the connecting rod 203. The slider 205 slides up and down inside the guide rail 204, pushing the push rod 305 to move. At the same time, the sliding pin 304 is installed and fixed at the top of the push rod 305. The sliding pin 304 rotates inside the swing arm 303, so that the push rod 305 slides while pushing the sliding pin 304 to move, and driving the swing arm 303 to swing. The swing arm 303 drives the rotating shaft 301 to rotate. The rotation of the rotating shaft 301 drives the pointer 302 to rotate on the surface of the switch box 1, completing the switch opening and closing indication operation. By adding an extra set of opening and closing indication devices, the problem of the switch position and indication not matching after the transmission indication device wears out can be solved. At the same time, the transmission structure has a shorter transmission connection and less wear on parts, which improves the accuracy of the device indication.

[0035] 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 switch indicator device, characterized in that: Includes a switch housing (1), a switch operating mechanism (2) is installed inside the switch housing (1), and a swing device (3) is rotatably connected to the surface of the switch housing (1) and located above the switch operating mechanism (2); The switch operating mechanism (2) includes a guide rail (204), which is fixed to the inner wall of the switch housing (1), and a slider (205) is slidably connected to the surface of the guide rail (204). The swing device (3) includes a rotating shaft (301), which is connected to the inside and outside of the switch box (1) through a bearing seat. A pointer (302) is fixed to the outside of the switch box (1) by bolts. A swing arm (303) is mechanically fixed to the inside of the switch box (1) by the rotating shaft (301). A long slot is provided at the far end of the swing arm (303) and a sliding pin (304) is connected to it. The swing arm (303) is sleeved with the outer wall of the sliding pin (304). One end of the slider (205) is connected to the push rod (305) and is slidably connected to the inner wall of the guide rail (204).

2. The switch indicator device according to claim 1, characterized in that: The switch operating mechanism (2) also includes an operating shaft (201), which is fixed inside the switch housing (1). A device crank arm (202) is sleeved and fixed on the outer wall of the operating shaft (201). A connecting rod (203) is rotatably connected to the top of the device crank arm (202) and the surface of the slider (205), and the connecting rod (203) and the slider (205) are rotatably connected by a bearing.

3. A switch indicator device according to claim 2, characterized in that: The surface of the guide rail (204) is provided with a slide rail that matches the push rod (305), and the two ends of the connecting rod (203) are rotatably connected to the slider (205) and the device crank arm (202) respectively through bearings.

4. A switch indicator device according to claim 1, characterized in that: The rotating shaft (301) is rotatably connected to the switch housing (1) via a bearing. The surface of the switch housing (1) is equipped with an open / close indicator mark, which is located at both ends of the pointer (302).

5. A switch indicator device according to claim 1, characterized in that: The surface of the sliding pin (304) is mechanically connected to the inner wall of the swing arm (303) with ball bearings, and the top of the sliding pin (304) is set with a groove that matches the guide rail (204).

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