Indicating device

Abstract

The utility model relates to the technical field of isolating switch indicating devices, in particular to an indicating device, which comprises a pull rod, a sliding rod, a sliding sleeve, a pin, a fixed seat, a shaft seat, a pointer and the like, and an isolating switch and an operating mechanism thereof are arranged in a switch box body. According to the utility model, a group of operating mechanism and indicating mechanism is additionally arranged in the switch box body, original indication and double indication are combined to confirm that the position of the switch is correct, the opening and closing positions of the switch are directly reflected through linear transmission of internal parts of the operating mechanism at the fracture of the switch, and the internal part sliding rod of the indicating device extends from the inside of the shell to the outside of the shell. And a switching-on / off pointer is arranged on one side, which is matched with the shaft seat and extends out of the shell, of the sliding rod, and rotates along with the sliding rod, so that the indication of the switch position is realized, the switching-on / off position pointer can be reflected at the pointer position along with the change of the switching-on / off position of the switch, and the direction difference of the switching-on / off position pointer is 180 degrees, and the state of the switch can be accurately reflected.

Description

Technical Field

[0001] This utility model relates to the technical field of disconnector indicator devices, and specifically to an 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 pole-mounted switches integrating primary and secondary circuit breakers, 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 disconnect switches. To ensure the stable operation and safe maintenance of the products, both pole-mounted circuit breakers and disconnect 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 not visible. The exact position of the disconnector depends entirely on the switch position indicator and the interlocking device with the circuit breaker. To meet the "five-proof" safety requirements of the circuit breaker and disconnector, mechanical and electrical interlocks are usually configured between the circuit breaker and the disconnector. The circuit breaker can only operate when the disconnector is in the correct position and both the mechanical and electrical interlocks are unlocked simultaneously.

[0004] Under normal circumstances, the changes between the open and closed states are quite significant, but there is no high requirement for the accuracy of the position angle. During the mechanical transmission process, due to transmission losses, there may be a deviation between the position indication and the actual open / closed position of the disconnecting switch; or due to damage to the transmission components, the position indication device may fail to accurately indicate the switch position. Since the disconnection point cannot be directly observed, maintenance personnel will face significant challenges in locating the problem and it will be difficult to detect quickly, while also posing certain safety hazards.

[0005] Therefore, it is necessary to propose an indicating device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an indicating device that, through the mutual cooperation of the internal parts of the operating mechanism, facilitates the linear transmission of the bushing at the switch break, directly reflecting the open and closed positions of the switch. The indicating positions extending outside the housing are on both sides of the pointer, making the indication positions highly visible. The mutual cooperation of the internal parts of the indicating mechanism allows the internal parts to reflect changes in the open and closed positions of the switch in the pointer position, with the pointer directions differing by 180° between the open and closed positions, accurately reflecting the switch status. This addresses the problems in existing technologies where, due to transmission losses during mechanical transmission, the position indication may deviate from the actual open and closed position of the isolating switch; or damage to transmission components may prevent the position indicating device from accurately indicating the switch position. Furthermore, since the isolating break cannot be directly observed, maintenance personnel face significant challenges in locating problems and find it difficult to detect quickly, while also posing certain safety hazards.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an indicator device, comprising a switch housing, wherein an operating mechanism is rotatably connected to the inner wall of the switch housing and extends through the interior of the switch housing, and an indicator mechanism is bolted to the surface of the switch housing and extends through the interior of the switch housing;

[0008] The operating mechanism includes an operating shaft, which is rotatably connected to the inside of the switch box. A main crank arm is installed and fixed on the outer wall of the operating shaft. A connecting rod is slidably connected to the surface of the main crank arm, and a connecting seat is rotatably connected to the end of the connecting rod away from the main crank arm. A bushing is welded and fixed to the end of the connecting seat away from the connecting rod, and a pin is threaded to the top of the bushing.

[0009] The indicating mechanism includes an indicator plate, which is fixed to the surface of the switch box by bolts. A pointer is rotatably connected to the surface of the indicator plate. A mounting base is sleeved between the pointer and the indicator plate and is fixed to the surface of the indicator plate and the switch box by bolts. A limit slide rod is rotatably connected to the inner wall of the mounting base and slides into the inside of the bushing. A limit ring is mechanically fixed to the outer wall of the limit slide rod, and the mounting base is sleeved and rotated with the outer wall of the limit ring.

[0010] Preferably, the operating mechanism further includes a fixed seat, which is welded and fixed inside the switch housing and sleeved with the outer wall of the bushing.

[0011] Preferably, the main crank arm and the connecting rod are connected by a sliding rod, and the surface of the main crank arm is provided with a sliding groove that matches the sliding rod.

[0012] Preferably, the top surface of the bushing is provided with a limiting strip, and the surface of the fixing seat is provided with a telescopic groove that matches the bushing and the limiting strip.

[0013] Preferably, the surface of the limiting slide bar is provided with a spiral groove that matches the pin, and the spiral groove has a rotation angle of 180 degrees.

[0014] Preferably, the mounting base has a limiting groove inside that matches the limiting ring, the font on the surface of the indicator plate is symmetrically distributed at 180 degrees, and the pointer is connected and fixed to the limiting slide rod by bolts.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By rotating the operating shaft, the main crank arm rotates. The main crank arm is connected to the connecting rod by a sliding rod. The surface of the main crank arm has a groove that matches the sliding rod, which facilitates the rotation of the main crank arm to drive the sliding rod to slide. The sliding rod drives the connecting rod to move. The moving connecting rod pushes the bushing to slide through the connecting seat. The top surface of the bushing has a limit strip, and the surface of the fixed seat has a telescopic groove that matches the bushing and the limit strip, which facilitates the bushing to telescopically slide on the fixed seat through the limit strip. The bushing slides through the pin on the spiral groove, which drives the limit sliding rod to rotate. This makes the mechanical transmission design simpler than the traditional structure, reduces the transmission distance, and enables the synchronous switching of the opening / closing indicator and the switch action.

[0017] 2. The sliding of the bushing drives the pin to slide on the spiral groove, which in turn drives the limit slide rod to slide. At the same time, the limit slide rod rotates within the mounting base under the force of the limit ring. The pointer is connected and fixed to the limit slide rod by bolts, which facilitates the rotation of the limit slide rod and drives the pointer to rotate on the indicator plate surface. The text on the indicator plate surface is symmetrically distributed at 180 degrees, which can accurately reflect the status of the switch and make it easier for the staff to see the status of the switch more clearly. This improves the stability of the limit slide rod within the mounting base when it rotates, thus more effectively transmitting the indication of the switch's open / closed status. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the bushing and the limiting slide rod of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the bushing of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the mounting base and bushing of this utility model.

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

[0024] 1. Switch housing; 2. Operating mechanism; 201. Operating shaft; 202. Main crank arm; 203. Connecting rod; 204. Connecting seat; 205. Bushing; 206. Fixed seat; 207. Pin; 3. Indicating mechanism; 301. Indicator plate; 302. Pointer; 303. Mounting seat; 304. Limiting slide bar; 305. Limiting ring. 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 1-4 An indicating device is shown, including a switch housing 1, an operating mechanism 2 is rotatably connected to the inner wall of the switch housing 1 and extends into the interior of the switch housing 1, and an indicating mechanism 3 is bolted to the surface of the switch housing 1 and extends into the interior of the switch housing 1.

[0027] The operating mechanism 2 includes an operating shaft 201, which is rotatably connected to the inside of the switch box 1. A main crank arm 202 is installed and fixed on the outer wall of the operating shaft 201. A connecting rod 203 is slidably connected to the surface of the main crank arm 202. A connecting seat 204 is rotatably connected to the end of the connecting rod 203 away from the main crank arm 202. A bushing 205 is welded and fixed to the end of the connecting seat 204 away from the connecting rod 203. A pin 207 is threadedly connected to the top of the bushing 205.

[0028] The indicating mechanism 3 includes an indicating plate 301, which is fixed to the surface of the switch box 1 by bolts. A pointer 302 is rotatably connected to the surface of the indicating plate 301. A mounting base 303 is sleeved between the pointer 302 and the indicating plate 301 and is fixed to the surface of the indicating plate 301 and the switch box 1 by bolts. A limit slide rod 304 is rotatably connected to the inner wall of the mounting base 303 and slides into the inside of the bushing 205. A limit ring 305 is mechanically fixed to the outer wall of the limit slide rod 304, and the mounting base 303 is sleeved and rotated with the outer wall of the limit ring 305.

[0029] Through the mutual cooperation between the internal parts of the operating mechanism 2, the bushing 205 can be linearly driven at the switch break, which can directly reflect the open and closed position of the switch. The indicator positions extending outside the housing are on both sides of the pointer 302, and the indicator positions are very conspicuous. Through the mutual cooperation between the internal parts of the indicator mechanism 3, the internal parts of the indicator mechanism 3 can follow the change of the open and closed position of the switch and reflect it in the position of the pointer 302. Moreover, the pointer 302 is 180° different in direction between the open and closed positions, which can accurately reflect the state of the switch.

[0030] Refer to the instruction manual appendix Figure 1-4 The operating mechanism 2 also includes a fixed seat 206, which is welded and fixed inside the switch box 1 and sleeved with the outer wall of the bushing 205. Through the mutual cooperation between the internal parts of the operating mechanism 2, the bushing 205 can be extended and slid on the fixed seat 206.

[0031] Refer to the instruction manual appendix Figure 1-4 The main crank arm 202 and the connecting rod 203 are connected by a sliding rod, and the surface of the main crank arm 202 is provided with a sliding groove that matches the sliding rod. The main crank arm 202 is connected to the connecting rod 203 by a sliding rod, and the surface of the main crank arm 202 is provided with a sliding groove that matches the sliding rod, so that the main crank arm 202 can rotate to drive the sliding rod to slide, and the sliding rod can drive the connecting rod 203 to move.

[0032] Refer to the instruction manual appendix Figure 1-4 The top surface of the bushing 205 is provided with a limiting strip, and the surface of the fixed seat 206 is provided with a telescopic groove that matches the bushing 205 and the limiting strip. The bushing 205 can slide on the fixed seat 206 by telescopically extending and retracting through the limiting strip because the top surface of the bushing 205 is provided with a limiting strip, and the surface of the fixed seat 206 is provided with a telescopic groove that matches the bushing 205 and the limiting strip.

[0033] Refer to the instruction manual appendix Figure 1-4 The surface of the limiting slide bar 304 is provided with a spiral groove that matches the pin 207, and the spiral groove has a rotation angle of 180 degrees. The spiral groove on the surface of the limiting slide bar 304 matches the pin 207, and the spiral groove has a rotation angle of 180 degrees, so that the pin 207 can slide through the spiral groove to drive the limiting slide bar 304 to rotate 180 degrees.

[0034] Refer to the instruction manual appendix Figure 1-4The mounting base 303 has a limiting groove inside that matches the limiting ring 305. The lettering on the surface of the indicator plate 301 is symmetrically distributed at 180 degrees, and the pointer 302 is connected and fixed to the limiting slide rod 304 by bolts. The symmetrical distribution of the lettering on the surface of the indicator plate 301 at 180 degrees and the connection and fixation of the pointer 302 to the limiting slide rod 304 by bolts facilitate the rotation of the limiting slide rod 304 to drive the pointer 302 to rotate on the surface of the indicator plate 301, thereby facilitating the indication of the switch's open / closed state.

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

[0036] Refer to the instruction manual appendix Figure 1-4 By rotating the operating shaft 201, the main crank arm 202 rotates. The main crank arm 202 is connected to the connecting rod 203 by a sliding rod. The surface of the main crank arm 202 is provided with a sliding groove that matches the sliding rod, so that the main crank arm 202 can rotate and drive the sliding rod to slide. The sliding of the sliding rod drives the connecting rod 203 to move. The movement of the connecting rod 203 pushes the bushing 205 to slide through the connecting seat 204. A limit strip is provided on the top surface of the bushing 205, and the surface of the fixed seat 206 is provided with a telescopic sliding groove that matches the bushing 205 and the limit strip, so that the bushing 205 can telescopically slide on the fixed seat 206 through the limit strip. The sliding of the bushing 205 is driven by the pin 207 sliding on the spiral groove, which drives the limit sliding rod 304 to rotate. This makes the mechanical transmission design simpler than the traditional structure, reduces the transmission distance, and enables the synchronous switching of the opening and closing indication and the switch action.

[0037] Refer to the instruction manual appendix Figure 1-4 The bushing 205 slides, causing the pin 207 to slide on the spiral groove, which in turn causes the pin 207 to slide the limit slide rod 304. At the same time, the limit slide rod 304 is subjected to force and rotates within the mounting base 303 through the limit ring 305. The pointer 302 is connected and fixed to the limit slide rod 304 by bolts, which facilitates the rotation of the limit slide rod 304 and causes the pointer 302 to rotate on the surface of the indicator plate 301. The lettering on the surface of the indicator plate 301 is symmetrically distributed at 180 degrees, which can accurately reflect the status of the switch and make it easier for the staff to see the status of the switch more clearly. This improves the stability of the limit slide rod 304 within the mounting base 303 when it rotates, thus more effectively transmitting the indication of the switch's open / closed status.

[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. An indicating device, characterized in that: Includes a switch housing (1), the inner wall of which is rotatably connected to an operating mechanism (2) that extends into the interior of the switch housing (1), and the surface of the switch housing (1) is bolted with an indicating mechanism (3) that extends into the interior of the switch housing (1). The operating mechanism (2) includes an operating shaft (201), which is rotatably connected to the inside of the switch housing (1). A main crank arm (202) is fixedly mounted on the outer wall of the operating shaft (201). A connecting rod (203) is slidably connected to the surface of the main crank arm (202), and a connecting seat (204) is rotatably connected to the end of the connecting rod (203) away from the main crank arm (202). A bushing (205) is welded and fixed to the end of the connecting seat (204) away from the connecting rod (203), and a pin (207) is threadedly connected to the top of the bushing (205). The indicating mechanism (3) includes an indicating plate (301), which is fixed to the surface of the switch box (1) by bolts. A pointer (302) is rotatably connected to the surface of the indicating plate (301). A mounting base (303) is sleeved between the pointer (302) and the indicating plate (301) and is fixed to the surface of the indicating plate (301) and the switch box (1) by bolts. A limit slide rod (304) is rotatably connected to the inner wall of the mounting base (303) and slides into the inside of the bushing (205). A limit ring (305) is mechanically fixed to the outer wall of the limit slide rod (304), and the mounting base (303) is sleeved and rotated with the outer wall of the limit ring (305).

2. The indicating device according to claim 1, characterized in that: The operating mechanism (2) also includes a fixed seat (206), which is welded and fixed inside the switch box (1) and sleeved with the outer wall of the bushing (205).

3. The indicating device according to claim 1, characterized in that: The main crank arm (202) is connected to the connecting rod (203) by a sliding rod, and the surface of the main crank arm (202) is provided with a sliding groove that matches the sliding rod.

4. An indicating device according to claim 2, characterized in that: The top surface of the bushing (205) is provided with a limiting strip, and the surface of the fixing seat (206) is provided with a telescopic groove that matches the bushing (205) and the limiting strip.

5. An indicating device according to claim 1, characterized in that: The surface of the limiting slide bar (304) is provided with a spiral groove that matches the pin (207), and the spiral groove has a rotation angle of 180 degrees.

6. An indicating device according to claim 1, characterized in that: The mounting base (303) has a limiting groove inside that matches the limiting ring (305). The font on the surface of the indicator plate (301) is symmetrically distributed at 180 degrees, and the pointer (302) is connected and fixed to the limiting slide rod (304) by bolts.

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