Trolley switch cabinet door panel mechanical position indicating device

Abstract

The invention discloses a mechanical position indicating device for a door panel of a trolley switch cabinet, and belongs to the technical field of movable circuit breaker maintenance. The technical problems that when an existing circuit breaker moves in a switch cabinet, an operator cannot observe the circuit breaker conveniently, and the next maintenance work cannot be executed conveniently are solved. The rack is horizontally and fixedly installed on the side face of a track of an external trolley, the transmission gear is arranged on one side of the rack and meshed with the rack, the transmission worm is vertically and fixedly installed in the center of the top face of the transmission gear, a vertical threaded through hole is formed in the middle of the sliding block, and the transmission worm is sleeved with the middle of the sliding block in a threaded fit mode. The sliding block is installed on the front side face of the trolley switch in a sliding mode in the vertical direction, the left end of the sliding block is detachably connected with an indication board, a visual window is formed in the cabinet door panel body, and position marks are arranged on the visual window. Operation is facilitated, safety and reliability are achieved, visual observation is facilitated, and operation time is saved. The movable circuit breaker maintenance device is used for movable circuit breaker maintenance.

Description

Technical Field

[0001] The invention relates to a mechanical position indicating device for a trolley switch cabinet door panel, belonging to the technical field of movable circuit breaker maintenance. Background Art

[0002] The switch cabinet trolley switch usually refers to a movable circuit breaker isolating switch used in high-voltage switch cabinets. This circuit breaker isolating switch is installed on a trolley that can slide along the track, so it is called a "trolley switch". The design of the trolley switch allows the circuit breaker isolating switch to be moved between the inside and outside of the switch cabinet, which is convenient for inspection, maintenance or replacement.

[0003] During maintenance or troubleshooting, it is necessary to observe the position of the trolley switch before performing the operation. However, when the circuit breaker isolating switch moves inside the switch cabinet, it is inconvenient for the operator to observe, especially when the switch cabinet door is closed. The operator cannot observe the position of the trolley switch, which is inconvenient to perform the next maintenance work.

[0004] In summary, when the existing circuit breaker is moved inside the switch cabinet, there is a technical problem that it is inconvenient for operators to observe and perform the next maintenance work. Summary of the invention

[0005] The present invention aims to solve the technical problem that when the existing circuit breaker is moved inside the switch cabinet, it is inconvenient for operators to observe and perform the next maintenance work, and further provides a trolley switch cabinet door panel mechanical position indicating device.

[0006] The technical solution of the present invention is a mechanical position indicating device for a trolley switch cabinet door panel, which includes a cabinet door panel body, a visual window, a position mark, an indicator board, a slider, a transmission worm, a transmission gear and a rack. The rack is horizontally fixedly installed on the side of the track of an external trolley, the transmission gear is arranged on one side of the rack, the transmission gear is meshed with the rack, the transmission worm is vertically fixedly installed on the top surface center of the transmission gear, a vertical threaded through hole is provided in the middle of the slider, the middle of the slider is fitted on the transmission worm through a threaded fit, the slider is slidably installed on the front side of the trolley switch in a vertical direction, the left end of the slider is detachably connected with an indicator board, a visual window is provided on the cabinet door panel body, and a position mark is provided on the visual window.

[0007] As another improvement of the present invention, it also includes a calibration mechanism, through which the indicator plate is detachably connected to the left end of the slider, and the angle of the indicator plate is adjusted by the calibration mechanism.

[0008] As another improvement of the present invention, the calibration mechanism includes an adjusting screw and a positioning pin, a rectangular frame is provided at the left end of the slider, a rectangular rod is provided at the right end of the sign, the positioning pin passes through the rectangular frame and the rectangular rod horizontally, the rectangular rod is rotatably installed on the front side of the rectangular frame through the positioning pin, the adjusting screw is provided on the left side of the positioning pin, the adjusting screw passes through the bottom of the rectangular frame vertically, the adjusting screw is threadedly connected to the bottom of the rectangular frame, and the top of the adjusting screw is against the rectangular rod.

[0009] As another improvement of the present invention, an operation instruction plate is provided on the cabinet door panel body.

[0010] As another improvement of the present invention, the viewing window is a transparent glass viewing window.

[0011] As another improvement of the present invention, the visual window is arranged at the center of the cabinet door panel body.

[0012] As another improvement of the present invention, a lubricating oil layer is coated at the junction of the transmission gear and the rack.

[0013] As another improvement of the present invention, the rack, the transmission gear, the transmission worm and the sliding block are all made of polycarbonate.

[0014] Beneficial effects of the present invention:

[0015] 1. The rack of the present invention moves with the trolley. The indicator sign, slider, transmission worm, transmission gear and rack form a linkage device. When the trolley moves, the indicator sign can accurately follow the change. The slider moves up and down through the gear and transmission screw to change the position of the indicator sign, ensuring that the operator can quickly identify it. This implementation is conducive to operation, safe and reliable, easy to observe intuitively, and saves operation time. It can be widely promoted in the same type of switch cabinets, aiming to improve the convenience and safety during operation.

[0016] 2. The present invention adjusts the angle of the sign through a calibration mechanism, which facilitates the adjustment of the angle of the sign during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of a trolley switch cabinet door panel mechanical position indicating device without the cabinet door panel body.

[0018] Figure 2 It is a transmission diagram of the rack, transmission gear, transmission worm and slider.

[0019] Figure 3 It is a structural diagram of the cabinet door panel body. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be explained that the positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are only based on the positional relationships of the orientations shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the referred components have specific orientations, are constructed and operated in specific orientations, and therefore cannot be understood as limitations on the present invention.

[0021] Specific implementation method 1: Combination Figures 1 to 3 The present embodiment is described. The present embodiment is a mechanical position indicating device for a trolley switch cabinet door panel, which includes a cabinet door panel body 10, a visual window 8, a position mark 7, an indicator board 5, a slider 4, a transmission worm 3, a transmission gear 2 and a rack 1. The rack 1 is horizontally fixedly installed on the side of the track of the external trolley, the transmission gear 2 is arranged on one side of the rack 1, the transmission gear 2 is meshed with the rack 1, the transmission worm 3 is vertically fixedly installed on the top center of the transmission gear 2, a vertical threaded through hole is provided in the middle of the slider 4, the middle of the slider 4 is fitted on the transmission worm 3 through a threaded fit, the slider 4 is slidably installed on the front side of the trolley switch in a vertical direction, the left end of the slider 4 is detachably connected with an indicator board 5, a visual window 8 is provided on the cabinet door panel body 10, and a position mark 7 is provided on the visual window 8.

[0022] The rack is fixed on the track on the side of the trolley. The indicator sign 5, the slider 4, the transmission worm 3, the transmission gear 2 and the rack 1 form a linkage device. When the trolley moves, the indicator sign can accurately follow the changes. The slider moves up and down through the gear and the transmission screw to change the position of the indicator sign. The visual window 8 is provided on the cabinet door panel body 10 to observe the change of the indicator sign position relative to the position mark 7, which intuitively indicates the position of the trolley switch inside the switch cabinet. The position mark and the indicator sign are used in conjunction with clear and easy-to-understand arrows and texts of work / test / isolation to enhance the intuitiveness of the instructions. The indicator sign adopts internationally accepted color standards, such as green for the working position, yellow for the test position, and red for the isolation position, to ensure that the operator can quickly identify it. This embodiment is conducive to operation, safe and reliable, easy to observe intuitively, and saves operation time. It can be widely promoted in the same type of switch cabinets to improve the convenience and safety during operation.

[0023] The mechanical position indicator of the trolley switch in the switch cabinet is an important component for intuitively displaying the switch status. They provide visual feedback on the position of the trolley switch and the status of other key components. Mechanical indications are essential to ensure operator safety, avoid misoperation, and monitor the health of the equipment. Operators should check these indicators before performing any operation to confirm the system status and follow the correct sequence. In some cases, such as during maintenance or troubleshooting, these indications can also help determine the root cause of the problem. It is a widely used monitoring method in hydropower plants and plays an indispensable role in operation and maintenance. It complies with the health and safety standards of the International Electrotechnical Commission IEC and works in an environment without electrostatic discharge.

[0024] Specific implementation method 2: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that this embodiment further includes a calibration mechanism 6. The indicator 5 is detachably connected to the left end of the slider 4 through the calibration mechanism 6. The angle of the indicator 5 is adjusted through the calibration mechanism 6. The angle of the indicator 5 is adjusted for maintenance. Other components and connection methods are the same as those of the first embodiment.

[0025] Specific implementation method three: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the calibration mechanism 6 includes an adjusting screw 61 and a positioning pin 62. A rectangular frame 41 is provided at the left end of the slider 4, and a rectangular rod is provided at the right end of the indicator 5. The positioning pin 62 passes through the rectangular frame 41 and the rectangular rod horizontally. The rectangular rod is rotatably installed on the front side of the rectangular frame 41 through the positioning pin 62. The adjusting screw 61 is provided on the left side of the positioning pin 62. The adjusting screw 61 passes through the bottom of the rectangular frame 41 vertically. The adjusting screw 61 is threadedly connected to the bottom of the rectangular frame 41, and the top of the adjusting screw 61 is against the rectangular rod. The adjusting screw 61 is rotated to adjust the height against the rectangular rod, and then the angle of the indicator 5 is adjusted, so as to facilitate the adjustment of the angle of the indicator 5 during maintenance. The other components and connection methods are the same as those of the specific embodiments 1 or 2.

[0026] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that an operation instruction board 9 is provided on the cabinet door panel body 10. The operation instruction board is attached with a concise operation guide and instruction description above the cabinet door to help the operator understand the meaning of each instruction and the operation process. The other components and connection methods are the same as any one of the first to third embodiments.

[0027] Specific implementation method five: Combination Figures 1 to 3The present embodiment is described. The present embodiment is different from the first embodiment in that the visual window 8 is a transparent glass visual window 8. It is convenient for operators to observe. The other components and connection methods are the same as any one of the first to fourth embodiments.

[0028] Specific implementation method six: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the visual window 8 is arranged at the center of the cabinet door panel body 10. It is convenient for operators to observe. The other components and connection methods are the same as any one of the first to fifth embodiments.

[0029] Specific implementation method seven: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that a lubricating oil layer is applied to the joint between the transmission gear 2 and the rack 1. This prolongs the service life of the device and enhances the reliability of the device. The other components and connection methods are the same as any one of the first to sixth embodiments.

[0030] Specific implementation method eight: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the rack 1, the transmission gear 2, the transmission worm 3 and the slider 4 are made of polycarbonate. It has the characteristics of wear resistance and impact resistance. It adopts a lightweight and durable high-strength composite material. The outer coating of the sign has IP68 waterproof characteristics and can maintain performance under extreme weather conditions. Other components and connection methods are the same as any one of the first to seventh embodiments.

[0031] Combination Figures 1 to 3 The working principle of the present invention is described:

[0032] The rack is fixed on the track on the side of the trolley, and a linkage device is formed by the indicator sign 5, the slider 4, the transmission worm 3, the transmission gear 2 and the rack 1. When the trolley moves, the indicator sign can accurately follow the changes. The slider is moved up and down by the gear and the transmission screw to change the position of the indicator sign. The change of the indicator sign position relative to the position mark 7 is observed through the visual window 8 provided on the cabinet door panel body 10, which intuitively indicates the position of the trolley switch inside the switch cabinet.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical position indicating device for a trolley switch cabinet door panel, characterized in that The invention comprises a cabinet door panel body (10), a visual window (8), a position mark (7), an indicator board (5), a slider (4), a transmission worm (3), a transmission gear (2) and a rack (1); the rack (1) is horizontally fixedly mounted on the side of a track of an external trolley; the transmission gear (2) is arranged on one side of the rack (1); the transmission gear (2) is meshed with the rack (1); the transmission worm (3) is vertically fixedly mounted on the center of the top surface of the transmission gear (2); a vertical threaded through hole is arranged in the middle of the slider (4); the middle of the slider (4) is sleeved on the transmission worm (3) through threaded matching; the slider (4) is slidably mounted on the front side of the trolley switch in a vertical direction; the left end of the slider (4) is detachably connected with the indicator board (5); a visual window (8) is arranged on the upper part of the cabinet door panel body (10); and a position mark (7) is arranged on the visual window (8).

2. A trolley switch cabinet door panel mechanical position indicating device according to claim 1, characterized in that It also includes a calibration mechanism (6), through which the indicator plate (5) is detachably connected to the left end of the slider (4), and the angle of the indicator plate (5) is adjusted through the calibration mechanism (6).

3. A trolley switch cabinet door panel mechanical position indicating device according to claim 2, characterized in that: The calibration mechanism (6) comprises an adjusting screw (61) and a positioning pin (62); a rectangular frame (41) is arranged at the left end of the slider (4); a rectangular rod is arranged at the right end of the indicator plate (5); the positioning pin (62) passes through the rectangular frame (41) and the rectangular rod horizontally; the rectangular rod is rotatably mounted on the front side of the rectangular frame (41) through the positioning pin (62); the adjusting screw (61) is arranged on the left side of the positioning pin (62); the adjusting screw (61) passes through the bottom of the rectangular frame (41) vertically; the adjusting screw (61) is threadedly connected to the bottom of the rectangular frame (41); and the top of the adjusting screw (61) abuts against the rectangular rod.

4. A trolley switch cabinet door panel mechanical position indicating device according to claim 1, characterized in that: An operation instruction plate (9) is arranged on the cabinet door panel body (10).

5. The mechanical position indicating device for a trolley switch cabinet door panel according to claim 1, characterized in that: The visual window (8) is a transparent glass visual window (8).

6. The mechanical position indicating device for a trolley switch cabinet door panel according to claim 1 is characterized in that The visual window (8) is arranged at the center of the cabinet door panel body (10).

7. The mechanical position indicating device for a trolley switch cabinet door panel according to claim 1, characterized in that: The joint between the transmission gear (2) and the rack (1) is coated with a lubricating oil layer.

8. The mechanical position indicating device for a trolley switch cabinet door panel according to claim 1, characterized in that: The rack (1), the transmission gear (2), the transmission worm (3) and the slide block (4) are all made of polycarbonate.

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