External anti-electric shock device for cable branch box

Abstract

The invention discloses an external anti-electric shock device for a cable branch box, and relates to the technical field of anti-electric shock equipment. The invention provides an external anti-electric shock device for a cable branch box, which comprises a mounting rack and the like, the mounting rack is rotatably connected with an axially distributed isolation plate, the isolation plate is slidably connected with paired limiting racks, elastic sheets are fixedly connected between the limiting racks and the isolation plate, the limiting racks are slidably connected with the mounting rack, and the limiting racks are in extrusion fit with the isolation plate. The mounting frame is fixedly connected with paired guide blocks, the mounting frame is slidably connected with paired axially-distributed ejector blocks, the ejector blocks are in extrusion fit with the limiting frame, and the ejector blocks are slidably connected with the isolation plate. According to the invention, through parts such as the limiting frame and the push block, cable branches can be isolated independently, and other isolation plates can be locked when any isolation plate is opened, so that an electric shock accident caused by mistakenly touching other surrounding cables when a worker maintains a fault cable is avoided; and the protection effect of the external electric shock prevention device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-electric shock equipment, and in particular to an external anti-electric shock device for a cable branch box. Background Art

[0002] An anti-electric shock device is an electrical safety device used to prevent electric shock accidents. Its main function is to prevent workers from touching live contacts and causing electric shock accidents. Therefore, this device can effectively protect people and equipment safety. The cable branch box, as a power distribution device that can branch or transfer the main cable into multiple branches and realize the flexible transmission of electric energy to different directions or regions, requires an external anti-electric shock device with high adaptability.

[0003] Since the existing cable branch box has multiple branch lines, and when workers are repairing the lines, in order to avoid affecting the power transmission of other lines, the workers usually only cut off the power to the faulty branch line. Therefore, there is still a risk of contact with other lines and causing electric shock accidents when workers are performing maintenance work. The existing anti-electric shock device for cable branch boxes can usually only isolate the live parts in the cable branch box as a whole when in use, and cannot isolate other running lines one by one when a single line fails. This makes it easy for workers to come into contact with other live parts when working in the cable branch box and cause electric shock to the workers, resulting in poor anti-electric shock effect of this device.

[0004] Based on the above situation, the present invention proposes an external anti-electric shock device for a cable branch box with good protection effect. Summary of the Invention

[0005] In order to overcome the disadvantage that the existing anti-electric shock device for cable branch boxes can only isolate the live parts in the cable branch box as a whole when in use, but cannot isolate other running lines one by one when a single line fails, which makes it easy for workers to come into contact with other live parts when working in the cable branch box and cause electric shock to the workers, thereby resulting in poor anti-electric shock effect of this device, the present invention provides an external anti-electric shock device for cable branch boxes with good protection effect.

[0006] An external anti-electric shock device for a cable branch box includes a mounting frame, an isolation plate, a limit frame, a guide block, a top block and a spring piece. The mounting frame is rotatably connected to an axially distributed isolation plate, and the isolation plate is slidably connected to a pair of limit frames. Spring pieces are fixed between the limit frames and the isolation plates. The limit frames are slidably connected to the mounting frame, and the limit frames are extruded and fitted with the isolation plates. The mounting frame is fixedly connected to a pair of guide blocks, and the mounting frame is slidably connected to a pair of axially distributed top blocks. The top blocks are extruded and fitted with the limit frames, and the top blocks are slidably connected to the isolation plates.

[0007] Furthermore, it also includes a wrapping mechanism, which is arranged on the mounting frame. The wrapping mechanism includes a movable frame, an isolation membrane and a card frame. The pairs of axially distributed movable frames are slidably connected to the mounting frame, the movable frames are fixedly connected to the card frames, and the isolation membranes are fixedly connected between the pairs of card frames.

[0008] Furthermore, the card holder is provided with a curved surface.

[0009] Furthermore, it also includes a locking mechanism, which is arranged on the mounting frame. The locking mechanism includes a push block, a movable block and a compression spring. The axially distributed push blocks are all slidably connected to the mounting frame. A compression spring is fixed between the push block and the mounting frame. The push block is squeezed and matched with the isolation plate. The isolation plate is slidably connected with the movable block. The movable block is squeezed and matched with the push block. The movable block is slidably connected to the mounting frame.

[0010] Furthermore, the push block is provided with an inclined surface.

[0011] Furthermore, it also includes a warning mechanism, which is arranged on the mounting frame. The warning mechanism includes a support frame, a current sensor, an indicator plate, a telescopic motor, a rotating frame and a battery. The paired rotating frames are fixed to the mounting frame, and the paired rotating frames are rotatably connected with the support frames. The support frames are fixed with paired current sensors through wires, and the support frames are slidably connected with the indicator plate. The support frames are fixed with paired telescopic motors, and the telescopic ends of the telescopic motors are fixed with the indicator plate. The telescopic motors are electrically connected to the current sensors. The support frames are clamped with paired batteries, and the batteries are electrically connected to the telescopic motors.

[0012] Furthermore, the support frame is provided with axially distributed observation windows.

[0013] Furthermore, it also includes a grounding mechanism, which is arranged on the mounting frame. The grounding mechanism includes an insertion rod, a conductive wire and a conductive block. The pairs of conductive blocks are fixed to the mounting frame. The mounting frame is fixed with a pair of conductive wires. One end of the conductive wire is fixed to the conductive block, and the other end of the conductive wire is fixed to the insertion rod.

[0014] The beneficial effects are: 1. The present invention uses components such as limit frames and push blocks to not only isolate each cable branch separately, but also lock other isolation panels when any isolation panel is opened, thereby preventing workers from accidentally touching other surrounding cables when repairing a faulty cable and causing electric shock accidents, thereby improving the protective effect of this external anti-electric shock device.

[0015] 2. The present invention can adapt to cables of various sizes and provide additional insulation protection for all cable branches through components such as isolation membranes and brackets, thereby further reducing the risk of electric shock accidents caused by cable damage and improving the protective effect of this external anti-electric shock device.

[0016] 3. The present invention uses components such as current sensors and indicator panels to monitor in real time whether there is leakage in the cable branch box and provide corresponding warning information to the staff, thereby preventing the staff from directly contacting the leaking cable branch box without knowing it and causing electric shock accidents, thereby improving the protection effect and practicality of this external anti-electric shock device.

[0017] 4. The present invention can conduct abnormal currents generated by induced voltage or short circuit on the cable branch box into the ground through components such as plug-in rods and conductive wires, thereby effectively preventing electric shock to personnel and damage to equipment, and improving the protective effect of this external anti-electric shock device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting frame, movable frame and push block of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the isolation plate, limit frame, guide block and other components of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting frame and the top block of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the mounting frame, isolation membrane, card holder and other components of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable frame, isolation membrane and card frame of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the isolation plate, push block and movable clamping block of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the push block, movable clamping block and compression spring components of the present invention.

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the components such as the support, current sensor and indicator plate of the present invention.

[0027] Figure 10 It is a schematic diagram of the three-dimensional structure of the indicator plate, telescopic motor and rotating frame of the present invention.

[0028] Figure 11 It is a schematic diagram of the three-dimensional structure of the insertion rod, conductive wire and mounting frame of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the mounting frame, conductive wires, conductive blocks and other components of the present invention.

[0030] Figure 13 It is a schematic diagram of the three-dimensional structure of the insertion rod, conductive wire and conductive block of the present invention.

[0031] Figure numbers: 1_mounting frame, 11_isolation plate, 12_limiting frame, 13_guide block, 14_top block, 15_shrapnel, 2_moving frame, 21_isolating membrane, 22_card frame, 3_push block, 31_moving card block, 32_compression spring, 4_resistance frame, 41_current sensor, 42_indicator plate, 43_telescopic motor, 44_rotating frame, 45_battery, 5_insertion rod, 51_conductive wire, 52_conductive block. DETAILED DESCRIPTION

[0032] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0033] Example 1

[0034] An external anti-electric shock device for a cable branch box, such as Figures 1-4 As shown, it includes a mounting frame 1, an isolation plate 11, a limit frame 12, a guide block 13, a top block 14 and a spring piece 15. The front side of the mounting frame 1 is rotatably connected to the axially distributed isolation plate 11, and the upper and lower sides of the isolation plate 11 are slidably connected to the limit frame 12. A spring piece 15 is fixed between the limit frame 12 and the isolation plate 11. The limit frame 12 is slidably connected to the mounting frame 1, and the limit frame 12 is squeezed together with the isolation plate 11 on its right side. The upper and lower parts of the left and right sides of the mounting frame 1 are fixed with guide blocks 13. The upper and lower sides of the front of the mounting frame 1 are slidably connected to the axially distributed top blocks 14. The top block 14 is squeezed together with the adjacent limit frame 12, and the top block 14 is slidably connected to the isolation plate 11.

[0035] like Figure 7 and Figure 8 As shown, a locking mechanism is also included, which is arranged on the mounting frame 1. The locking mechanism includes a push block 3, a movable block 31 and a compression spring 32. The axially distributed push blocks 3 are all slidably connected to the middle part of the front side of the mounting frame 1. A compression spring 32 is fixed between the push block 3 and the mounting frame 1. The push block 3 is squeezed and fitted with the isolation plate 11 on its left side. The middle part of the front side of the isolation plate 11 is slidably connected with the movable block 31. The movable block 31 is squeezed and fitted with the adjacent push block 3, and the movable block 31 is slidably connected to the mounting frame 1.

[0036] like Figure 7 and Figure 8 As shown, both the left and right parts of the front side of the push block 3 are provided with inclined surfaces.

[0037] When workers want to improve the safety of the cable branch box and reduce the risk of electric shock, they can first align the guide block 13 with the slide groove on the cable branch box, and then move the mounting frame 1 and other components backward until they are in contact with the rear inner wall of the cable branch box, so as to complete the installation of the mounting frame 1 and other components. The mounting frame 1 and other components are mostly made of insulating materials, and at this time all the cable branches in the cable branch box will be separated separately by the mounting frame 1 and the axially distributed isolation plate 11. When workers need to repair any damaged cable branch, they can first rotate and open the corresponding isolation plate 11 and other components forward, and then repair the faulty cable. During this period, when the isolation plate 11 is When the separation plate 11 and other components are rotated forward and opened, the isolation plate 11 will contact and squeeze the limiting frame 12 on its left side, so that the limiting frame 12 moves to the left, and the spring piece 15 is deformed and compressed immediately. The limiting frame 12 moves to the left and squeezes the top block 14 on its left side, so that the top block 14 also moves to the left and continues to drive the limiting frame 12 on its left side to move to the left. By analogy, all the limiting frames 12 and top blocks 14 on the left side of this isolation plate 11 can move to the left, and the limiting frame 12 and top block 14 will respectively insert into the other side's slide groove on the isolation plate 11 or the mounting frame 1 and lock the corresponding isolation plate 11, so that the limiting frame 12 and top block 14 can be used to lock this isolation plate 11. When the push block 3 moves to the left, it will squeeze the moving block 31 on its left and move it to the left. When the moving block 31 moves to the left, it will insert into the sliding groove of the push block 3 on the mounting frame 1 and lock the corresponding isolation plate 11. In this way, all isolation plates 11 on the right side of this isolation plate 11 can be locked with the help of the push block 3 and the moving block 31, thereby effectively preventing workers from accidentally moving the faulty cable when repairing it. When the isolation plate 11 is rotated and reset backward and no longer restricts the limit frame 12, all the limit frames 12 and the top block 14 on the left side of this isolation plate 11 will move to the right and reset under the action of the spring 15, thereby unlocking all the isolation plates 11 on the left side of this isolation plate 11.

[0038] Example 2

[0039] On the basis of Example 1, Figure 5 and Figure 6As shown, a wrapping mechanism is also included, which is arranged on the mounting frame 1. The wrapping mechanism includes a movable frame 2, an isolation membrane 21 and a card frame 22. Two groups of axially distributed movable frames 2 are respectively slidably connected to the upper and lower sides of the mounting frame 1. The card frame 22 is fixedly connected to the rear side of the movable frame 2, and an isolation membrane 21 is fixedly connected between the two upper and lower paired card frames 22.

[0040] like Figure 6 As shown, both the left and right parts of the rear side of the bracket 22 are provided with curved surfaces.

[0041] When the worker moves the mounting frame 1 and other components backward and installs them on the cable branch box, the bracket 22, the isolation membrane 21 and the movable frame 2 will also move backward with the mounting frame 1. When the bracket 22 moves backward, it will first contact the corresponding cable and be squeezed to open to both sides, and the isolation membrane 21 will also immediately expand to both sides. When the bracket 22 continues to move backward to the rear side of the bracket 22 and separates from the cable, the bracket 22 will regroup and clamp the cable under the action of its own elasticity, and the isolation membrane 21 will also regroup to the middle and wrap around the cable. In this way, the isolation membrane 21 and the bracket 22 and other components can adapt to cables of various sizes and provide additional insulation wrapping protection for all cable branches, thereby further reducing the risk of electric shock accidents caused by cable damage. When it is necessary to repair the faulty cable, the worker can move the upper and lower movable frames 2 and bracket 22 up or down to the appropriate position as needed, and the isolation membrane 21 will be folded immediately, so as to avoid the isolation membrane 21 hindering the inspection and repair of the cable fault.

[0042] like Figure 9 and Figure 10 As shown, a warning mechanism is also included, which is arranged on the mounting frame 1. The warning mechanism includes a support frame 4, a current sensor 41, an indicator plate 42, a telescopic motor 43, a rotating frame 44 and a battery 45. The two rotating frames 44 are respectively fixed to the left and right sides of the top of the mounting frame 1, and the support frame 4 is rotatably connected between the front ends of the left and right rotating frames 44. The upper and lower parts of the left and right sides of the support frame 4 are fixed with the current sensor 41 through wires, and the upper part of the support frame 4 is slidably connected with the indicator plate 42. The left and right parts of the rear side of the support frame 4 are fixed with the telescopic motor 43, and the telescopic end of the telescopic motor 43 is fixed with the indicator plate 42. The telescopic motor 43 is electrically connected to the current sensor 41. The left and right parts of the rear side of the support frame 4 are clamped with batteries 45, and the battery 45 is electrically connected to the adjacent telescopic motor 43.

[0043] like Figure 9 and Figure 10 As shown, an axially distributed observation window is provided in the middle of the bracket 4.

[0044] After completing the installation of components such as the mounting frame 1, workers can also stick the current sensor 41 on the inner wall of the cable branch box, and at this time the axially distributed observation window opened on the support frame 4 will correspond to the observation window opened on the front cover of the cable branch box. When the current sensor 41 detects that there is leakage on the cable branch box, the current sensor 41 will start the telescopic motor 43 through the controller. The telescopic motor 43 will drive the indicator plate 42 to move downward for a distance under the power provided by the battery 45 and block part of the observation window. In this way, the current sensor 41 and the indicator plate 42 and other components can be used to monitor in real time whether there is leakage in the cable branch box and provide corresponding warning information to the staff, thereby avoiding direct contact between the staff and the leaking cable branch box in an unknown situation and causing electric shock accidents. When there is no leakage in the cable branch box, the current sensor 41 will drive the indicator plate 42 to move upward and reset through the telescopic motor 43 and no longer block the observation window.

[0045] like Figure 11-13 As shown, a grounding mechanism is also included, which is arranged on the mounting frame 1. The grounding mechanism includes an insertion rod 5, a conductive wire 51 and a conductive block 52. The two conductive blocks 52 are respectively fixed to the left and right parts of the rear side of the mounting frame 1. The conductive wire 51 is fixed to both the left and right sides of the lower part of the mounting frame 1. One end of the conductive wire 51 is fixed to the adjacent conductive block 52, and the other end of the conductive wire 51 is fixed to the insertion rod 5.

[0046] When the mounting frame 1 and other components move backward and come into contact with the rear inner wall of the cable branch box, the conductive block 52 will also come into contact with the rear inner wall of the cable branch box. At this time, the worker can also insert the rod 5 into the nearby ground. When the cable branch box leaks electricity, the abnormal current generated by the induced voltage or short circuit on the cable branch box will be conducted into the ground by the conductive block 52, the conductive wire 51 and the rod 5, thereby effectively preventing people from being electrocuted and equipment from being damaged.

[0047] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An external anti-electric shock device for a cable branch box, characterized by: The invention comprises a mounting frame (1), an isolation plate (11), a limiting frame (12), a guide block (13), a top block (14) and a spring piece (15); the mounting frame (1) is rotatably connected to an axially distributed isolation plate (11); the isolation plate (11) is slidably connected to a pair of limiting frames (12); a spring piece (15) is fixed between the limiting frame (12) and the isolation plate (11); the limiting frame (12) is slidably connected to the mounting frame (1); the limiting frame (12) and the isolation plate (11) are extrusion-fitted; the mounting frame (1) is fixedly connected to a pair of guide blocks (13); the mounting frame (1) is slidably connected to a pair of axially distributed top blocks (14); the top block (14) is extrusion-fitted to the limiting frame (12); and the top block (14) is slidably connected to the isolation plate (11).

2. The external anti-electric shock device for a cable branch box according to claim 1 is characterized in that: The invention also includes a wrapping mechanism, which is arranged on the mounting frame (1). The wrapping mechanism includes a movable frame (2), an isolation membrane (21) and a clamping frame (22). The movable frames (2) distributed in pairs in an axial direction are all slidably connected to the mounting frame (1). The movable frames (2) are fixedly connected to the clamping frames (22). The isolation membrane (21) is fixedly connected between the paired clamping frames (22).

3. The external anti-electric shock device for a cable branch box according to claim 2, characterized in that: The card rack (22) A curved surface is provided.

4. The external anti-electric shock device for a cable branch box according to claim 3 is characterized in that: The invention also includes a locking mechanism, which is arranged on the mounting frame (1). The locking mechanism includes a push block (3), a movable clamping block (31) and a compression spring (32). The axially distributed push blocks (3) are all slidably connected to the mounting frame (1). A compression spring (32) is fixed between the push block (3) and the mounting frame (1). The push block (3) is squeezed and matched with the isolation plate (11). The isolation plate (11) is slidably connected with the movable clamping block (31). The movable clamping block (31) is squeezed and matched with the push block (3). The movable clamping block (31) is slidably connected to the mounting frame (1).

5. The external anti-electric shock device for a cable branch box according to claim 4 is characterized in that: The push block (3) There is an inclined surface.

6. The external anti-electric shock device for a cable branch box according to claim 5, characterized in that: The invention also includes a warning mechanism, which is arranged on the mounting frame (1). The warning mechanism includes a support frame (4), a current sensor (41), an indicator plate (42), a telescopic motor (43), a rotating frame (44) and a battery (45). The paired rotating frames (44) are fixed to the mounting frame (1). The paired rotating frames (44) are rotatably connected to the support frame (4). The support frame (4) is fixed to the paired current sensor (41) through a wire. The support frame (4) is slidably connected to the indicator plate (42). The support frame (4) is fixed to the paired telescopic motor (43). The telescopic end of the telescopic motor (43) is fixed to the indicator plate (42). The telescopic motor (43) is electrically connected to the current sensor (41). The support frame (4) is clamped with a paired battery (45). The battery (45) is electrically connected to the telescopic motor (43).

7. The external anti-electric shock device for a cable branch box according to claim 6, characterized in that: Among them The frame (4) is provided with axially distributed observation windows.

8. The external anti-electric shock device for a cable branch box according to claim 7, characterized in that: The device further comprises a grounding mechanism, which is arranged on the mounting frame (1). The grounding mechanism comprises an insertion rod (5), a conductive wire (51) and a conductive block (52). The paired conductive blocks (52) are fixedly connected to the mounting frame (1). The mounting frame (1) is fixedly connected to the paired conductive wires (51). One end of the conductive wire (51) is fixedly connected to the conductive block (52), and the other end of the conductive wire (51) is fixedly connected to the insertion rod (5).

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