Device for replacing ventilation pipeline of electrical equipment

Abstract

The invention relates to the technical field of pipeline replacement, in particular to an electrical equipment ventilation pipeline replacement device. The invention provides an electrical equipment ventilation pipeline replacement device which can assist people in supporting and dragging and taking down a ventilation pipeline. An electrical equipment ventilation pipeline replacing device comprises two movable bases, belts, first sliding frames and the like, the bottoms of the movable bases are connected with the belts through rolling wheels, the belts rotate to drive the movable bases to move, and the first sliding frames are installed on the upper sides of the movable bases. The bracket is controlled to support a ventilation pipeline, so that the ventilation pipeline can be supported, replacement and installation are achieved, meanwhile, a pull rope is pulled to enable a clamping arc plate to clamp the ventilation pipeline, a first spring deforms to adapt to clamping of ventilation pipelines of different sizes, and therefore the situation that workers are injured due to the fact that the ventilation pipeline falls off can be avoided; and therefore, safe replacement of the ventilation pipeline is realized.

Description

Technical Field

[0001] This invention relates to the field of pipeline replacement technology, and in particular to a device for replacing ventilation pipelines of electrical equipment. Background Technology

[0002] With urbanization, people are becoming increasingly reliant on electricity in their daily lives. SF6 gas, due to its excellent arc-quenching, insulating, and chemically stable properties, is widely used as an insulating medium in high-voltage electrical equipment, leading to a continuous increase in the number of SF6-powered electrical devices. However, SF6 leaks can cause harm to people and pollution to the environment. Therefore, when damage to the venting lines of electrical equipment is discovered, the lines need to be replaced. However, venting lines are generally made of metal and are quite large, requiring multiple people to assist in disassembling and replacing them. During the replacement process, the venting lines need to be supported before removal. This process not only consumes a significant amount of manpower, but also carries the risk of injury if the venting lines tip over without proper support.

[0003] Therefore, there is a need to design an electrical equipment ventilation pipe replacement device that can assist people in supporting and dragging the ventilation pipe off. Summary of the Invention

[0004] To overcome the drawbacks of replacing ventilation pipes, which requires multiple people to assist in disassembly and replacement, is that it not only consumes a lot of manpower but also poses a risk of injury if the ventilation pipes tip over, this invention provides an electrical equipment ventilation pipe replacement device that can assist people in supporting and dragging the ventilation pipes off.

[0005] An electrical equipment ventilation pipe replacement device includes a movable base, a belt, a first sliding frame, a connecting column, a first connecting plate, a lifting mechanism, and a dragging mechanism. Two movable bases are provided, each with a belt connected to its bottom via rolling wheels. The belt rotates, causing the movable base to move. A first sliding frame is installed on the upper side of each movable base. A cross-telescopic structure is slidably and rotatably connected between the first sliding frames. The cross-telescopic structure consists of the first sliding frames and the connecting column. A lifting mechanism for lifting the electrical equipment ventilation pipe is provided on each first connecting plate, and a dragging mechanism for moving the electrical equipment ventilation pipe is provided on the lifting mechanism.

[0006] As a preferred embodiment of the present invention, the lifting mechanism includes a bracket, movable balls, a rotating rod, a gear, a rack, a first fixed plate, and a locking plate. The upper part of the first sliding frame is slidably connected to the bracket, and multiple movable balls are rotatably connected to the upper side of the bracket. The rotation of the movable balls prevents obstruction of the movement of the electrical equipment's ventilation pipe. The lower part of the bracket is rotatably connected to the rotating rod, and a gear is keyed to the front of each rotating rod. A rack is connected to the front of each first sliding frame, meshing with the gear on the same side. The outer side of each first sliding frame is connected to the first fixed plate, and the lower outer side of the bracket is slidably connected to the locking plate, which engages with the first fixed plate. By controlling the locking plate to move outward and disengage from the first fixed plate, the rotating rod can be controlled to rotate the gear. Under the action of the rack, the gear rotates and moves simultaneously, thereby driving the bracket to move.

[0007] As a preferred embodiment of the present invention, the dragging mechanism includes a second sliding frame, a slider, a pull rope, a clamping plate, a clamping arc plate, a first spring, a rolling roller, a friction belt, a limiting plate, a first torsion spring, and a limiting plate. The upper outer side of the bracket is connected to the second sliding frame. A slider is slidably connected to each of the second sliding frames, and a pull rope is connected to each slider. Clamping plates are symmetrically slidably connected to the sliders, and each clamping plate contacts the second sliding frame on the same side. A clamping arc plate is slidably connected to each clamping plate, and the clamping arc plate is perpendicular to the adjacent clamping plate. Each clamping arc plate is connected to a first spring. Five pairs of rolling rollers are rotatably connected to the upper inner surface of the clamping arc plate. Each pair consists of two rolling rollers, one on the left and one on the right. A friction belt is wound around each pair of rolling rollers. Ten symmetrical limiting plates are rotatably connected to the upper inner surface of the clamping arc plate. The limiting plates contact the adjacent friction belts. A first torsion spring is connected between the limiting plates and the adjacent clamping arc plates. Ten symmetrical positioning plates are rotatably connected to the upper inner surface of the clamping arc plate. The positioning plates contact the adjacent limiting plates respectively.

[0008] As a preferred embodiment of the present invention, it further includes a clamping mechanism, which includes a connecting frame, a second fixing plate, a second spring, a third fixing plate, a connecting rope, a pull wheel, a fourth fixing plate, a second torsion spring, and an unlocking component. Connecting frames are installed on the upper inner side of the bracket. The lower part of each connecting frame is slidably connected to a second fixing plate. Second springs are connected between the second fixing plate and the front and rear sides of adjacent connecting frames. A third fixing plate is slidably connected to the middle of each connecting frame. A connecting rope is connected to the upper side of each second fixing plate. A pull wheel is connected to the upper middle part of the connecting frame. The tail end of the connecting rope passes around the pull wheel and connects to the third fixing plate. The left and right sides of each connecting frame are rotatably connected to a fourth fixing plate. The third fixing plate contacts the lower side of the fourth fixing plate, thereby limiting the opening state of the fourth fixing plate. The second fixing plate moves upward and contacts the lower side of the fourth fixing plate, thereby limiting the clamping state of the fourth fixing plate. A second torsion spring is connected between the fourth fixing plate and the connecting frame. An unlocking component is connected to the inner side of each first sliding frame.

[0009] As a preferred embodiment of the present invention, it further includes a winding mechanism, which includes a support wheel, a mounting frame and a take-up wheel. The outer side of the second sliding frame is connected to the support wheel, and the rear side of the bracket is connected to the mounting frame. The take-up wheel is rotatably connected to the mounting frame, and the tail end of the pull rope passes around the support wheel on the same side and is connected to the take-up wheel.

[0010] As a preferred embodiment of the present invention, it further includes a clamping mechanism, which includes a mounting base, a clamping member, and a locking plate. The lower front side of the movable base is connected to the mounting base, and the clamping member is rotatably connected to the mounting base. The clamping member contacts the belt on the same side. The upper part of the mounting base is slidably connected to the locking plate, and the locking plate contacts the clamping member on the same side. Moving the locking plate backward disengages it from the clamping member on the same side, allowing the clamping member to rotate, thereby preventing the clamping member from pressing against the belt on the same side, and thus controlling the movement of the movable base.

[0011] As a preferred embodiment of the present invention, it further includes a reinforcing mechanism, which includes a second connecting plate and a locking pin. The front and rear sides of the connecting column at the lowest end are connected to the second connecting plate, and the locking pin is slidably connected to each of the second connecting plates.

[0012] As a preferred embodiment of the present invention, a handle is connected to the take-up reel.

[0013] Beneficial effects:

[0014] 1. This invention supports the ventilation pipe by controlling the bracket to support it, thereby enabling replacement and installation. At the same time, pulling the rope will cause the clamping arc plate to clamp the ventilation pipe. The deformation of the first spring can adapt to clamp ventilation pipes of different sizes, thereby preventing the ventilation pipe from falling and causing injury to the staff, thus achieving safe replacement of the ventilation pipe.

[0015] 2. When the new ventilation tube is placed on the upper front side of the bracket, the third fixing plate will be squeezed and moved downward to separate from the fourth fixing plate. At this time, the second torsion spring will return and drive the upper side of the fourth fixing plate to swing inward, thereby clamping the ventilation tube. At the same time, the connecting rope pulls the second fixing plate upward to limit the position of the fourth fixing plate at this time, thereby preventing the new ventilation tube from falling off.

[0016] 3. With this invention, people can control the rotation of the take-up reel to pull the rope, thus making it convenient for people to operate frequently.

[0017] 4. The present invention controls the positioning plate to move backward, so that the positioning plate is disengaged from the clamping member, thereby allowing the clamping member to rotate, so that the clamping member will not press against the belt on the same side, thereby controlling the movement of the moving base, controlling the positioning plate to move forward and reset, thereby limiting the clamping member, so that the clamping member can press against the belt, thereby preventing the moving base from moving.

[0018] 5. The connecting column and the first connecting plate of the present invention can make the position between the two first sliding frames more stable. By controlling the removal of the locking pin, the position of the first sliding frames on both sides can be adjusted. By controlling the locking pin to reset, the cross telescopic structure can not be telescopic, thereby fixing the position between the two first sliding frames. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0022] Figure 4 This is a partial three-dimensional structural diagram of the lifting mechanism of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the dragging mechanism of the present invention.

[0024] Figure 6 This is a partial three-dimensional structural cross-sectional view of the dragging mechanism of the present invention.

[0025] Figure 7 This is a three-dimensional cross-sectional view of the second partial structure of the dragging mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0027] Figure 9 This is a schematic diagram of the first partial three-dimensional structure of the clamping mechanism of the present invention.

[0028] Figure 10 This is a schematic diagram of the second part of the clamping mechanism of the present invention.

[0029] Figure 11 This is an exploded three-dimensional view of the winding mechanism of the present invention.

[0030] Figure 12 This is a three-dimensional structural cross-sectional view of the clamping mechanism of the present invention.

[0031] Figure 13 This is a three-dimensional structural diagram of the reinforcement mechanism of the present invention.

[0032] The components in the diagram are labeled as follows: 1-Moving base, 2-Belt, 3-First sliding frame, 4-Connecting column, 5-First connecting plate, 6-Towing mechanism, 61-Bracket, 62-Moving ball, 63-Rotating rod, 64-Gear, 65-Rack, 66-First fixed plate, 67-Clamping plate, 7-Towing mechanism, 71-Second sliding frame, 72-Slider, 73-Pull rope, 74-Clamping plate, 75-Clamping arc plate, 76-First spring, 77-Rolling roller, 78-Friction belt, 79-Limiting plate, 710-First torsion... Spring, 711-Limiting plate, 8-Clamping mechanism, 81-Connecting frame, 82-Second fixing plate, 821-Second spring, 83-Third fixing plate, 84-Connecting rope, 85-Pull wheel, 86-Fourth fixing plate, 87-Second torsion spring, 88-Unlocking component, 9-Rewinding mechanism, 91-Support wheel, 92-Mounting frame, 93-Take-up wheel, 10-Pressure mechanism, 101-Mounting seat, 102-Pressure component, 103-Positioning plate, 11-Reinforcing mechanism, 111-Second connecting plate, 112-Pin. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0034] A device for replacing the ventilation pipe of electrical equipment, such as Figures 1-7As shown, it includes a movable base 1, a belt 2, a first sliding frame 3, a connecting column 4, a first connecting plate 5, a lifting mechanism 6, and a dragging mechanism 7. There are two movable bases 1. The bottom of each movable base 1 is connected to a belt 2 via rolling wheels. The belt 2 rotates to drive the movable base 1 to move. The upper side of each movable base 1 is equipped with a first sliding frame 3. The first sliding frames 3 are slidably and rotatably connected by a cross telescopic structure. The cross telescopic structure is composed of the first sliding frames 3 and the connecting column 4. The first connecting plate 5 is equipped with a lifting mechanism 6. The lifting mechanism 6 is used to lift the ventilation pipe of the electrical equipment. The lifting mechanism 6 is equipped with a dragging mechanism 7. The dragging mechanism 7 is used to drag the ventilation pipe of the electrical equipment to move.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, the lifting mechanism 6 includes a bracket 61, movable balls 62, a rotating rod 63, a gear 64, a rack 65, a first fixed plate 66, and a locking plate 67. The upper part of the first sliding frame 3 is slidably connected to the bracket 61, and multiple movable balls 62 are rotatably connected to the upper side of the bracket 61. The rotation of the movable balls 62 prevents obstruction of the movement of the electrical equipment's ventilation pipes. The lower part of the bracket 61 is rotatably connected to the rotating rod 63, and the front of the rotating rod 63 is keyed to the gear 64. The first sliding... Each frame 3 has a rack 65 connected to its front side, which meshes with a gear 64 on the same side. Each sliding frame 3 has a first fixed plate 66 connected to its outer side. Each bracket 61 has a sliding plate 67 connected to its lower outer side, which engages with the first fixed plate 66. By controlling the plate 67 to move outward and disengage from the first fixed plate 66, the rotating rod 63 can be controlled to rotate the gear 64. Under the action of the rack 65, the gear 64 rotates and moves, thereby driving the bracket 61 to move.

[0036] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the dragging mechanism 7 includes a second sliding frame 71, a slider 72, a pull rope 73, a clamping plate 74, a clamping arc plate 75, a first spring 76, a rolling roller 77, a friction belt 78, a limiting plate 79, a first torsion spring 710, and a limiting plate 711. The upper outer side of the bracket 61 is connected to the second sliding frame 71. A slider 72 is slidably connected to each second sliding frame 71. A pull rope 73 is connected to each slider 72. Clamping plates 74 are symmetrically slidably connected to each slider 72, and each clamping plate 74 contacts the second sliding frame 71 on the same side. A clamping arc plate 75 is slidably connected to each clamping plate 74. The clamping arc plate 75 is connected to the adjacent clamping plate 71. Each of the four clamping arc plates 75 is connected to a first spring 76. Five pairs of rolling rollers 77 are rotatably connected to the upper inner surface of the clamping arc plate 75. Each pair consists of two rolling rollers 77 on the left and right. A friction belt 78 is wound around each pair of rolling rollers 77. Ten symmetrical limiting plates 79 are rotatably connected to the upper inner surface of the clamping arc plate 75. The limiting plates 79 are in contact with the adjacent friction belts 78. A first torsion spring 710 is connected between the limiting plates 79 and the adjacent clamping arc plates 75. Ten symmetrical limiting plates 711 are rotatably connected to the upper inner surface of the clamping arc plate 75. The limiting plates 711 are in contact with the adjacent limiting plates 79.

[0037] When it is necessary to replace the ventilation pipe of the electrical equipment, the device can be controlled to move under the ventilation pipe under the action of belt 2. Then, the new ventilation pipe is placed on the upper front side of bracket 61. Then, the clamping plate 67 is controlled to move outward and disengage from the first fixing plate 66. Then, the rotating rod 63 can be controlled to rotate, which will drive the gear 64 to rotate. Under the action of rack 65, the gear 64 rotates and moves, which in turn drives the bracket 61 to move, so that the upper rear side of the bracket 61 contacts and lifts the ventilation pipe. Then, the clamping plate 67 can be controlled to move inward and contact the first fixing plate 66, thereby fixing the position of the bracket 61. Then, the moving base 1 can be controlled to move backward, thereby placing the new ventilation pipe in the position of the old ventilation pipe, thus realizing the replacement installation. At the same time, the pull rope 73 can be pulled, which will drive the slider 72 to move outward, thereby clamping the plate. 74 moves outward, and simultaneously, guided by the second sliding frame 71, the clamping plate 74 moves outward and towards the center, thereby causing the clamping arc plate 75 to clamp the ventilation pipe. The deformation of the first spring 76 can adapt to clamping ventilation pipes of different sizes. At the same time, because the rolling chuck 77 contacts the limiting plate 79, and the limiting plate 79 contacts the limiting plate 711, the rolling chuck 77 can only rotate clockwise and cannot rotate counterclockwise, so that the friction belt 78 can only operate in one direction. Then, the ventilation pipe can be moved to the left and pulled out. When the clamping arc plate 75 clamps the ventilation pipe, the friction belt 78 will be in close contact with the ventilation pipe, thereby preventing the ventilation pipe from falling and causing injury to the staff, thus achieving safe replacement of the ventilation pipe. Then, the clamping plate 67 can be controlled to move outward and disengage from the first fixing plate 66. Then, the rotating rod 63 can be controlled to rotate in the opposite direction, thereby causing the bracket 61 to move downward and reset.

[0038] like Figure 1 , Figure 8 , Figure 9 and Figure 10As shown, it also includes a clamping mechanism 8, which includes a connecting frame 81, a second fixing plate 82, a second spring 821, a third fixing plate 83, a connecting rope 84, a pull wheel 85, a fourth fixing plate 86, a second torsion spring 87, and an unlocking component 88. Connecting frames 81 are installed on the upper inner side of the bracket 61, and the lower part of each connecting frame 81 is slidably connected to a second fixing plate 82. Second springs 821 are connected between the second fixing plate 82 and the front and rear sides of the adjacent connecting frame 81, and a third fixing plate 83 is slidably connected to the middle of each connecting frame 81. The upper side of the second fixing plate 82 is connected to a connecting rope 84. The upper middle part of the connecting frame 81 is connected to a pull wheel 85. The tail end of the connecting rope 84 passes around the pull wheel 85 and is connected to the third fixing plate 83. The left and right sides of the connecting frame 81 are rotatably connected to the fourth fixing plate 86. The lower side of the third fixing plate 83 contacts the lower side of the fourth fixing plate 86. The second fixing plate 82 moves upward and contacts the lower side of the fourth fixing plate 86. The fourth fixing plate 86 and the connecting frame 81 are both connected to the second torsion spring 87. The inner side of the first sliding frame 3 is connected to the unlocking piece 88.

[0039] Initially, the second torsion spring 87 is in a deformed state. When the new vent pipe is placed on the upper front side of the bracket 61, the new vent pipe will first contact the third fixing plate 83, thereby squeezing the third fixing plate 83 downward. This will then pull the second fixing plate 82 upward through the connecting rope 84, compressing the second spring 821. The downward movement of the third fixing plate 83 will disengage from the fourth fixing plate 86. At this time, the second torsion spring 87 will return to its original position, causing the upper side of the fourth fixing plate 86 to swing inward, thereby clamping the vent pipe. The upward movement of the second fixing plate 82 will then contact the lower side of the fourth fixing plate 86. At this time, the second fixing plate 82 can limit the position of the fourth fixing plate 86, preventing the second torsion spring 87 from deforming again, thus preventing the vent pipe from falling off. When the bracket 61 moves downward to reset, it will also drive the connecting bracket 81, the second fixing plate 82, the second spring 821, the third fixing plate 83, the connecting rope 84, the pull wheel 85, the fourth fixing plate 86, and the second torsion spring 87 to move downward together. At this time, the ventilation pipe will disengage from the third fixing plate 83. The second spring 821 will return to its original position and drive the second fixing plate 82 to move downward. Then, the connecting rope 84 will pull the third fixing plate 83 upward. When the third fixing plate 83 moves downward with the bracket 61 and comes into contact with the unlocking member 88, the unlocking member 88 will squeeze the lower side of the fourth fixing plate 86 and swing it inward. This will cause the second torsion spring 87 to deform. At this time, the third fixing plate 83 will lock the lower side of the fourth fixing plate 86 again, making it convenient for people to use next time.

[0040] like Figure 1 and Figure 11As shown, it also includes a winding mechanism 9, which includes a support wheel 91, a mounting frame 92, and a take-up wheel 93. The outer side of the second sliding frame 71 is connected to the support wheel 91, and the rear side of the bracket 61 is connected to the mounting frame 92. The take-up wheel 93 is rotatably connected to the mounting frame 92. The tail end of the pull rope 73 passes around the support wheel 91 on the same side and is connected to the take-up wheel 93. A handle is connected to the take-up wheel 93.

[0041] People can control the rotation of the take-up reel 93 by the handle, thereby pulling the pull rope 73, which makes it convenient for people to operate frequently.

[0042] like Figure 1 and Figure 12 As shown, it also includes a clamping mechanism 10, which includes a mounting base 101, a clamping member 102, and a locking plate 103. The lower front side of the movable base 1 is connected to the mounting base 101, and the clamping member 102 is rotatably connected to the mounting base 101. The clamping member 102 is in contact with the belt 2 on the same side. The upper part of the mounting base 101 is slidably connected to the locking plate 103, and the locking plate 103 is in contact with the clamping member 102 on the same side.

[0043] When it is necessary to control the movement of the movable base 1, the control plate 103 moves backward, causing the control plate 103 to disengage from the clamping member 102, thereby allowing the clamping member 102 to rotate, thus preventing the clamping member 102 from pressing against the belt 2 on the same side, thereby controlling the movement of the movable base 1. When it is not necessary to move the movable base 1, the control plate 103 moves forward to reset, thereby limiting the clamping member 102, allowing the clamping member 102 to press against the belt 2, thereby preventing the movable base 1 from moving.

[0044] like Figure 2 and Figure 13 As shown, it also includes a reinforcing mechanism 11, which includes a second connecting plate 111 and a locking pin 112. The front and rear sides of the connecting column 4 at the lowest end are connected to the second connecting plate 111, and the locking pin 112 is slidably connected to the second connecting plate 111.

[0045] The connecting column 4 and the first connecting plate 5 can make the position between the two first sliding frames 3 more stable. By removing the control pin 112, the movement of the first sliding frames 3 on both sides can be controlled, thereby adjusting the position of the first sliding frames 3 on both sides. After the adjustment is completed, the control pin 112 fixes the connecting column 4 at the end to the first sliding frame 3, thereby preventing the cross telescopic structure formed by the connecting column 4 and the first connecting plate 5 from telescopic, thus fixing the position between the two first sliding frames 3.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for replacing the ventilation pipe of electrical equipment, characterized in that, It includes a movable base (1), a belt (2), a first sliding frame (3), a connecting column (4), a first connecting plate (5), a lifting mechanism (6), and a dragging mechanism (7). There are two movable bases (1). The bottom of each movable base (1) is connected to a belt (2) through a rolling wheel. The belt (2) rotates to drive the movable base (1) to move. The upper side of each movable base (1) is equipped with a first sliding frame (3). The first sliding frames (3) are connected by a cross telescopic structure that slides and rotates between them. The cross telescopic structure is composed of the first sliding frame (3) and the connecting column (4). The first connecting plate (5) is equipped with a lifting mechanism (6) for lifting the ventilation pipe of the electrical equipment. The lifting mechanism (6) is equipped with a dragging mechanism (7) for dragging the ventilation pipe of the electrical equipment.

2. The electrical equipment ventilation pipe replacement device according to claim 1, characterized in that, The lifting mechanism (6) includes a bracket (61), movable balls (62), a rotating rod (63), a gear (64), a rack (65), a first fixed plate (66), and a clamping plate (67). The upper part of the first sliding frame (3) is slidably connected to the bracket (61), and the upper side of the bracket (61) is rotatably connected to multiple movable balls (62). The rotation of the movable balls (62) does not obstruct the movement of the ventilation pipe of the electrical equipment. The lower part of the bracket (61) is rotatably connected to the rotating rod (63), and the front part of the rotating rod (63) is keyed to the gear (64). The first sliding frame ( 3) The front side is connected to a rack (65), which meshes with the gear (64) on the same side. The outer side of the first sliding frame (3) is connected to a first fixed plate (66), and the lower outer side of the bracket (61) is slidably connected to a clamping plate (67), which cooperates with the first fixed plate (66). By controlling the clamping plate (67) to move outward and disengage from the first fixed plate (66), the rotating rod (63) can be controlled to make the gear (64) rotate. Then, under the action of the rack (65), the gear (64) rotates and moves, thereby driving the bracket (61) to move.

3. The electrical equipment ventilation pipe replacement device according to claim 2, characterized in that, The dragging mechanism (7) includes a second sliding frame (71), a slider (72), a pull rope (73), a clamping plate (74), a clamping arc plate (75), a first spring (76), a rolling roller (77), a friction belt (78), a limiting plate (79), a first torsion spring (710), and a limiting plate (711). The upper outer side of the bracket (61) is connected to the second sliding frame (71). The second sliding frame (71) is slidably connected to the slider (72). The slider (72) is connected to the pull rope (73). The slider (72) is symmetrically connected to the clamping plate (74) in a sliding manner. The clamping plate (74) is in contact with the second sliding frame (71) on the same side. The clamping plate (74) is slidably connected to the clamping arc plate (75). The clamping arc plate (75) is connected to the second sliding frame (71) on the same side. Each adjacent clamping plate (74) is connected to a first spring (76). The upper inner surface of the clamping arc plate (75) is rotatably connected to five pairs of rolling rollers (77), each pair consisting of two left and right rolling rollers (77). Each pair of rolling rollers (77) is wrapped with a friction belt (78). The upper inner surface of the clamping arc plate (75) is rotatably connected to ten left and right symmetrical limiting plates (79). The limiting plates (79) contact the adjacent friction belts (78). The limiting plates (79) are connected to the adjacent clamping arc plates (75) with a first torsion spring (710). The upper inner surface of the clamping arc plate (75) is rotatably connected to ten left and right symmetrical limiting plates (711). The limiting plates (711) contact the adjacent limiting plates (79) respectively.

4. The electrical equipment ventilation pipe replacement device according to claim 3, characterized in that, It also includes a clamping mechanism (8), which includes a connecting frame (81), a second fixing plate (82), a second spring (821), a third fixing plate (83), a connecting rope (84), a pull wheel (85), a fourth fixing plate (86), a second torsion spring (87), and an unlocking component (88). The upper inner side of the bracket (61) is equipped with a connecting frame (81), and the lower part of the connecting frame (81) is slidably connected to the second fixing plate (82). The second fixing plate (82) is connected to the front and rear sides of the adjacent connecting frame (81) with a second spring (821). The middle part of the connecting frame (81) is slidably connected to the third fixing plate (83), and the upper side of the second fixing plate (82) is connected to a connecting rope (84). A rope (84) is connected to a pull wheel (85) at the upper middle part of the connecting frame (81). The tail end of the connecting rope (84) passes around the pull wheel (85) and is connected to the third fixed plate (83). The left and right sides of the connecting frame (81) are rotatably connected to the fourth fixed plate (86). The third fixed plate (83) contacts the lower side of the fourth fixed plate (86), thereby limiting the opening state of the fourth fixed plate (86). The second fixed plate (82) moves upward and contacts the lower side of the fourth fixed plate (86), thereby limiting the clamping state of the fourth fixed plate (86). The fourth fixed plate (86) and the connecting frame (81) are both connected to the second torsion spring (87). The inner side of the first sliding frame (3) is connected to the unlocking piece (88).

5. The electrical equipment ventilation pipe replacement device according to claim 4, characterized in that, It also includes a winding mechanism (9), which includes a support wheel (91), a mounting frame (92) and a take-up wheel (93). The outer side of the second sliding frame (71) is connected to the support wheel (91), and the rear side of the bracket (61) is connected to the mounting frame (92). The take-up wheel (93) is rotatably connected to the mounting frame (92). The tail end of the pull rope (73) passes around the support wheel (91) on the same side and is connected to the take-up wheel (93).

6. The electrical equipment ventilation pipe replacement device according to claim 5, characterized in that, It also includes a clamping mechanism (10), which includes a mounting base (101), a clamping member (102), and a locking plate (103). The lower front side of the movable base (1) is connected to the mounting base (101), and the mounting base (101) is rotatably connected to the clamping member (102). The clamping member (102) contacts the belt (2) on the same side. The upper part of the mounting base (101) is slidably connected to the locking plate (103). The locking plate (103) contacts the clamping member (102) on the same side. Moving the locking plate (103) backward disengages it from the clamping member (102) on the same side, so that the clamping member (102) can rotate, thereby preventing the clamping member (102) from pressing against the belt (2) on the same side, and thus controlling the movement of the movable base (1).

7. The electrical equipment ventilation pipe replacement device according to claim 6, characterized in that, It also includes a reinforcement mechanism (11), which includes a second connecting plate (111) and a locking pin (112). The front and rear sides of the connecting column (4) at the lowest end are connected to the second connecting plate (111), and the locking pin (112) is slidably connected to the second connecting plate (111).

8. The electrical equipment ventilation pipe replacement device according to claim 6, characterized in that, A handle is attached to the take-up reel (93).

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