High-voltage cabinet nuclear phase maintenance auxiliary device

Abstract

The utility model relates to the technical field of power supply maintenance equipment, and specifically discloses a high-voltage cabinet nuclear phase maintenance auxiliary device. The handcart comprises a handcart base, a locking mechanism, a transmission mechanism, a side plate, a tool table and an isolation plate, a locking mechanism is arranged in front of the handcart base, the locking mechanism is in transmission connection with the handcart base through a transmission mechanism, side plates are installed on the two sides of the upper portion of the handcart base, a tool table is fixedly installed between the two side plates, and an isolation plate made of transparent materials is detachably installed on the side, close to the locking mechanism, between the two side plates. The locking mechanism, the transmission mechanism and the handcart base are matched to connect the barrier strip on the side plate with the interlocking mechanism of the protective baffle plate of the high-voltage circuit breaker cabinet in a mechanical mode, the operation of directly lifting the protective baffle plate in a short distance manually is replaced, and the danger of electric shock of personnel is avoided, and a transparent isolation plate is further arranged on one side of the operator. Operators can be protected in the visual inspection process, and electric shock accidents are prevented.

Description

Technical field:

[0001] The utility model relates to the technical field of power supply maintenance equipment, in particular to a high-voltage cabinet nuclear phase maintenance auxiliary device. Background technology:

[0002] Electric power operation often involves maintenance, power supply and power reversal operations. When power is supplied to electrical equipment, a three-phase circuit phase check test is required to ensure that the phase and phase sequence of the transmission line are consistent with the phase sequence required by the user's three-phase load.

[0003] During actual operation, the phase checking operation needs to be carried out in the high-voltage short-circuit cabinet; the contacts on the transmission side and the contacts on the user side are arranged inside the circuit breaker isolation chamber of the high-voltage circuit breaker cabinet. It is convenient to perform phase checking operation at this position. At the same time, it is also necessary to check the trolley mechanism and the contacts during phase checking to eliminate potential mechanical failures and safety hazards; however, the contacts in the circuit breaker isolation chamber are provided with protective baffles. When the trolley mechanism of the circuit breaker is shaken out of the separation state, the protective baffles will automatically drop to isolate and protect the energized contacts, thereby preventing people from touching and getting electric shocks; therefore, when checking the phase, two people are required to manually lift the protective baffle to replace the action of the circuit breaker trolley to lift the baffle, exposing the internal contacts, and then the other two people will measure and check them, which is inconvenient to operate. In addition, due to the small space of the circuit breaker isolation chamber of the high-voltage short-circuit cabinet and the limited actions of multiple people, there are safety risks of misoperation and great risks of electric shock. Utility model content:

[0004] The utility model aims to provide a high-voltage cabinet nuclear phase maintenance auxiliary device to solve the problems existing in the prior art.

[0005] The utility model is implemented by the following technical scheme: a high-voltage cabinet nuclear phase maintenance auxiliary device, including a trolley base, a locking mechanism, a transmission mechanism, a side panel, a tool bench and an isolation plate; two groups of rollers are respectively installed on both sides of the trolley base, a locking mechanism is provided in front of the trolley base, the locking mechanism is connected to the trolley base through the transmission mechanism, side panels are installed on both sides above the trolley base, the rear end of the side panels is integrally formed with a vertically arranged baffle bar, a tool bench is fixedly installed between the two side panels, and an isolation plate made of transparent material is detachably installed between the two side panels, close to the locking mechanism.

[0006] Furthermore, the locking mechanism includes a box body, a locking handle, a slider, a spring and a locking block. Two sliders are slidably provided in the box body. The locking handle passes through the box body and is fixedly connected to the slider. The slider is integrally formed with a locking block. The locking blocks on the two sliders extend from both ends of the box body respectively. A spring is connected between the slider and the box body.

[0007] Further, the transmission mechanism includes a lead screw, a lead screw nut, a sliding plate, and a slide rail. One end of the lead screw is rotatably connected to the locking mechanism, and the other end passes through the side wall of the trolley base and is rotatably provided with a sliding plate. A slide rail is fixedly provided on the trolley base parallel to the lead screw, and the sliding plate is slidably engaged with the slide rail. A lead screw nut is fixedly provided on the inner wall of the trolley base at the position where the lead screw penetrates, and the lead screw nut is in transmission connection with the lead screw.

[0008] Further, two grooves are provided at the position of the sliding plate corresponding to the slide rail, and the sliding plate is movably clamped with the slide rail through the grooves.

[0009] Further, the end of the lead screw rotatably connected to the locking mechanism passes through the locking mechanism, and a square shaft head is integrally formed at the end.

[0010] Further, a tool holder and a lighting lamp are installed on the tool table.

[0011] Further, the partition board is made of polycarbonate, and a U-shaped clamp is installed on each of the two side plates. The partition board is detachably connected to the side plates through the U-shaped clamps.

[0012] Advantages of the present utility model: The cooperation of the locking mechanism, the transmission mechanism, and the trolley base mechanically engages the strip on the side plate with the interlocking mechanism of the protective baffle of the high-voltage circuit breaker, replacing the operation of manually lifting the protective plate directly at close range, avoiding the danger of electric shock to personnel. At the same time, a tool table and a lighting lamp are provided, facilitating maintenance and phase verification operations. Further, a transparent partition board is provided on the operator's side, which can protect the operator during visual inspection and prevent electric shock accidents. Brief Description of the Drawings:

[0013] Figure 1 is the overall structural schematic diagram of the present utility model.

[0014] Figure 2 In the present utility model Figure 1 exploded view.

[0015] Figure 3 is the structural schematic diagram of the locking mechanism.

[0016] Figure 4 is the structural schematic diagram of the transmission mechanism and the trolley base.

[0017] In the figure: trolley base 1, locking mechanism 2, transmission mechanism 3, side plate 4, tool table 5, partition board 6, U-shaped clamp 7, roller 101, box body 201, locking handle 202, slider 203, spring 204, locking block 205, lead screw 301, lead screw nut 302, sliding plate 303, slide rail 304, groove 305, square shaft head 306, strip 401, tool holder 501, lighting lamp 502. Detailed Description of the Invention:

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] Such as Figure 1 、 Figure 2As shown: a high-voltage cabinet nuclear phase maintenance auxiliary device, including a trolley base 1, a locking mechanism 2, a transmission mechanism 3, a side plate 4, a tool bench 5 and an isolation plate 6; two sets of rollers 101 are respectively installed on both sides of the trolley base 1, and the rollers 101 can cooperate with the track of the circuit breaker in the isolation chamber of the high-voltage circuit breaker cabinet, so that the trolley base 1 can slide along the track in the isolation chamber; a locking mechanism 2 is provided in front of the trolley base 1, and the locking mechanism 2 can be fixedly connected to the high-voltage circuit breaker cabinet, and the locking mechanism 2 is transmission-connected to the trolley base 1 through the transmission mechanism 3, and the trolley base 1 can be placed in the isolation chamber of the high-voltage circuit breaker cabinet, and the trolley base is driven to slide back and forth in the isolation chamber through the transmission mechanism 3, and side plates 4 are installed on both sides above the trolley base 1, and the side plates 4 are fixedly installed on the trolley base 1, and the rear end of the side plates 4 is integrally formed with a vertically arranged baffle 401, and the baffle 401 contacts the mechanical card block of the protective baffle in the isolation chamber. When the trolley base 1 moves inward, the baffle 401 can replace the original A mechanical structure on the circuit breaker pushes the mechanical card block of the protective baffle, thereby raising the protective baffle of the contact to expose the contact for testing and maintenance; a tool bench 5 is fixedly installed between the two side panels 4, and the tool bench 5 is fixedly connected to the trolley base 1 by bolts. A tool card 501 and a lighting lamp 502 are installed on the tool bench 5. The tool bench 5 is used to place commonly used maintenance tools for the convenience of operators to take and put, and the lighting lamp 502 is used to provide lighting; an isolation plate 6 made of transparent material is detachably installed between the two side panels 4 and close to the locking mechanism 2. The isolation plate 6 is made of polycarbonate, and a U-shaped card 7 is respectively installed on the side panels 4 on both sides. The isolation plate 6 is detachably connected to the side panel 4 through the U-shaped card 7; since the contacts in the isolation room of the high-voltage circuit breaker cabinet carry a high voltage of 10KV, a transparent isolation plate 6 is provided to prevent electric shock accidents. The operator can observe and visually inspect through the isolation plate 6. When maintenance or phase checking is required, the isolation plate 6 can be removed.

[0021] like Figure 3As shown: The locking mechanism 2 includes a box body 201, a locking handle 202, a slider 203, a spring 204, and a locking stop 205. Two sliders 203 are slidably arranged in the box body 201. The locking handle 202 passes through the box body 201 and is fixedly connected to the slider 203. A locking stop 205 is integrally formed on the slider 203. The locking stops 205 on the two sliders 203 extend from both ends of the box body 201 respectively. A spring 204 is connected between the slider 203 and the box body 201. By pulling the two handles 202 towards the middle, the locking stops 205 can be retracted into the box body 201. At this time, the trolley base 1 can be placed on the track in the isolation chamber, and then the locking mechanism 2 is inserted into the outer frame of the isolation chamber of the high-voltage circuit breaker. A lock hole corresponding to the position of the locking stop 205 is opened in the outer frame. Release the locking handle 202, and the spring 204 pulls the slider 203 to move towards both sides. At the same time, the locking stop 205 extends out of the box body 201 and is inserted into the lock hole of the outer frame of the isolation chamber to fix the locking mechanism 2 to the isolation chamber of the high-voltage circuit breaker.

[0022] As Figure 4 shown: The transmission mechanism 3 includes a lead screw 301, a lead screw nut 302, a sliding piece 303, and a slide rail 304. One end of the lead screw 301 is rotatably connected to the locking mechanism 2, and the other end passes through the side wall of the trolley base 1 and is rotatably provided with a sliding piece 303. A slide rail 304 is fixedly arranged on the trolley base 1 parallel to the lead screw 301. Two grooves 305 are opened at the position of the sliding piece 303 corresponding to the slide rail 304. The sliding piece 303 is slidably clamped with the slide rail 304 through the grooves 305. A lead screw nut 302 is fixedly arranged on the inner wall of the trolley base 1 at the position where the lead screw 301 penetrates. The lead screw nut 302 is in transmission connection with the lead screw 301; One end of the lead screw 301 rotatably connected to the locking mechanism 2 passes through the locking mechanism 2, and a square shaft head 306 is integrally formed at the end. The square shaft head 306 can cooperate with the energy storage handle of the circuit breaker. The lead screw 301 can be driven to rotate through the energy storage handle. When the lead screw 301 rotates, the lead screw nut 302 can be driven to reciprocate along the lead screw 301, thereby driving the trolley base 1 to move. The other end of the lead screw 301 is rotatably provided with a sliding piece 303. The sliding piece 303 is fixed at one end of the lead screw 301 and is slidably connected to the trolley base 1 through the slide rail 304. The slide rail 304 and the sliding piece 303 play a role in fixing the lead screw 301 to ensure that the lead screw 301 can rotate stably.

[0023] Working principle: When phase verification and maintenance are required, the circuit breaker in the isolation room of the high-voltage cabinet needs to be removed first, and this device is placed in the isolation room. First, place the rollers 101 of the trolley base 1 on the track in the isolation room and push it inward. Then, pull the locking handle 202 of the locking mechanism 2 to engage the locking mechanism 2 with the outer frame of the isolation room, release the locking handle 202 to fix the locking mechanism 2. Then, use the energy storage handle to drive the screw rod 301 to rotate, gradually push the trolley base 1 inward, simulating the movement of the circuit breaker inward, so that the stop bar 401 pushes up the protective baffle to expose the contact. If phase verification is required, the isolation plate 6 can be removed and the contact can be directly detected; using a mechanical method to replace manual operation to push up the protective baffle avoids the operator from contacting the contact closely, reduces the risk of electric shock, and reduces the number of operators, facilitating the maintenance and phase verification operations of the operator in the narrow isolation room.

Claims

1. A high-voltage cabinet nuclear phase maintenance auxiliary device, characterized in that: The invention comprises a trolley base (1), a locking mechanism (2), a transmission mechanism (3), a side plate (4), a tool bench (5) and an isolation plate (6); two groups of rollers (101) are respectively installed on both sides of the trolley base (1); a locking mechanism (2) is provided in front of the trolley base (1); the locking mechanism (2) is connected to the trolley base (1) through the transmission mechanism (3); side plates (4) are installed on both sides above the trolley base (1); a vertically arranged blocking bar (401) is integrally formed at the rear end of the side plates (4); a tool bench (5) is fixedly installed between the two side plates (4); and an isolation plate (6) made of a transparent material is detachably installed between the two side plates (4) and close to the locking mechanism (2).

2. A high-voltage cabinet nuclear phase maintenance auxiliary device according to claim 1, characterized in that: The locking mechanism (2) comprises a box body (201), a locking handle (202), a slider (203), a spring (204) and a locking block (205); two sliders (203) are slidably arranged in the box body (201); the locking handle (202) passes through the box body (201) and is fixedly connected to the sliders (203); the sliders (203) are integrally formed with the locking blocks (205); the locking blocks (205) on the two sliders (203) extend from two ends of the box body (201) respectively; and a spring (204) is connected between the sliders (203) and the box body (201).

3. A high-voltage cabinet nuclear phase maintenance auxiliary device according to claim 2, characterized in that: The transmission mechanism (3) comprises a screw (301), a screw nut (302), a slide plate (303) and a slide rail (304); one end of the screw (301) is rotatably connected to the locking mechanism (2); the other end of the screw passes through the side wall of the trolley base (1) and is rotatably provided with a slide plate (303); a slide rail (304) is fixedly provided on the trolley base (1) parallel to the screw (301); the slide plate (303) and the slide rail (304) are slidably matched; a screw nut (302) is fixedly provided on the inner wall of the trolley base (1) and at the position where the screw (301) penetrates; the screw nut (302) and the screw (301) are transmission-connected.

4. A high-voltage cabinet nuclear phase maintenance auxiliary device according to claim 3, characterized in that: Two grooves (305) are provided at positions of the slide plate (303) corresponding to the slide rail (304), and the slide plate (303) is movably engaged with the slide rail (304) via the grooves (305).

5. The high-voltage cabinet nuclear phase maintenance auxiliary device according to claim 3 is characterized in that: One end of the screw rod (301) rotatably connected to the locking mechanism (2) passes through the locking mechanism (2), and a square shaft head (306) is integrally formed at the end.

6. A high-voltage cabinet nuclear phase maintenance auxiliary device according to any one of claims 1 to 5, characterized in that: A tool card (501) and an illuminating lamp (502) are installed on the tool bench (5).

7. A high-voltage cabinet nuclear phase maintenance auxiliary device according to claim 6, characterized in that: The isolation plate (6) is made of polycarbonate, and a U-shaped clip (7) is respectively installed on the side plates (4) on both sides, and the isolation plate (6) is detachably connected to the side plates (4) via the U-shaped clip (7).

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