Mobile platform for replacing built-in current transformer of switch cabinet

Abstract

The invention discloses a switch cabinet built-in current transformer replacement moving platform which comprises a sliding base, a first vertical rod, a second vertical rod, an upper cross rod, a fixed cross rod, a moving cross rod, a supporting mechanism, a first adjusting mechanism and a second adjusting mechanism. Longitudinal tension is provided through the first vertical rod and the second vertical rod, the first vertical rod and the second vertical rod are located on the outer side of the switch cabinet, the height of the first vertical rod and the height of the second vertical rod are larger than the height of a side opening of the switch cabinet, and a limiting effect is achieved in the height direction. The limiting mechanism is arranged on the horizontal plane and plays a limiting role in the horizontal plane, so that the current transformer in the switch cabinet is located above the supporting mechanism, manual lifting is replaced, replacement is completed, the working efficiency is greatly improved, meanwhile, the safety risk in the equipment replacement process can be avoided, and the safety in the current transformer replacement process can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment maintenance, and in particular to a mobile platform for replacing a built-in current transformer in a switch cabinet. Background Art

[0002] With the continuous development of the economy and society, the power load has continued to rise, especially in recent years, the electric heating load has increased significantly, which has put forward higher requirements on the reliability and capacity of the operation of related equipment in the substation.

[0003] As a key equipment for protection, measurement and metering, the workload of replacing and renovating current transformers has increased significantly. However, most current transformers in switch cabinets are installed on the top of the cable room. When replacing current transformers, operators need to enter the narrow cable room of the switch cabinet, which is 0.7m long, 0.8m wide and 1.2m high. There are many internal equipments. At present, the removal of old transformers and installation of new transformers are completed by manual lifting. The current transformer weighs about 30kg. The whole replacement process takes about 8 hours. The working space in the switch cabinet is small, which makes it inconvenient for personnel to move. The operators consume a lot of physical energy. At the same time, if the current transformer falls due to physical exhaustion during the lifting process, there will be risks of personal injury and equipment damage, low work efficiency and great safety hazards.

[0004] As shown in the attached figure Figure 7 The figure shows the actual working status of the operators during the current transformer replacement process. It can be seen that the operators are very strenuous, and it is necessary to have a device that can free the operators' hands on site.

[0005] After searching, it was found that the Chinese utility model patent with patent application number 201320018991.7 proposed a current transformer replacement platform, but the platform is balanced by telescopic arms on the left and right sides. The entire platform is large when unfolded and is not easy to operate. At the same time, the weight on both sides must be equal to maintain balance. The operation process is complicated and cannot effectively solve the problems existing in the replacement of current transformers in the switch cabinet. Summary of the invention

[0006] In order to overcome the above problems, the purpose of the present invention is to provide a mobile platform for replacing the built-in current transformer in the switch cabinet, which can replace the traditional manual lifting method, push the current transformer to a fixed position in the cable room of the switch cabinet to carry out the replacement work, and provide longitudinal pulling force through the first vertical pole and the second vertical pole. The first vertical pole and the second vertical pole are located on the outside of the switch cabinet, and their heights are greater than the side opening height of the switch cabinet, which play a limiting role in the height direction, and provide lateral pulling force through the sliding base. An L-shaped slot is provided on the right side of the sliding base, which is inserted into the bottom of the switch cabinet and plays a limiting role in the horizontal plane, so that the current transformer in the switch cabinet is located above the supporting mechanism, instead of manual lifting, to complete the replacement, greatly improving work efficiency, and at the same time can avoid safety risks in the equipment replacement process and improve the safety of the current transformer replacement process.

[0007] The technical solution adopted by the present invention is: it includes a sliding base, a first upright pole, a second upright pole, an upper cross bar, a fixed cross bar, a movable cross bar, a supporting mechanism, a first adjusting mechanism, and a second adjusting mechanism. The first upright pole and the second upright pole have the same structure and a slide groove is opened on the inner side. The first upright pole is fixedly installed at the left position above the sliding base, with the slide groove side leaning to the right. The second upright pole is fixedly installed at the right position above the sliding base, with the slide groove side leaning to the left. The upper cross bar and the fixed cross bar are both fixedly installed between the first upright pole and the second upright pole, the upper cross bar is located at the upper end position, and the fixed cross bar is located at the lower position. The movable cross bar is slidably installed between the first upright pole and the second upright pole, and is located above the fixed cross bar. The supporting mechanism is fixedly installed on the upper surface of the movable cross bar. The first adjustment mechanism is fixedly installed between the fixed cross bar and the movable cross bar, and the second adjustment mechanism connects the fixed cross bar and the supporting mechanism.

[0008] The support mechanism comprises a first support rod and a second support rod. The first support rod and the second support rod have the same structure, an adjustment hole is opened at the right end thereof, and the left end thereof is fixedly mounted on the upper surface of the moving cross bar.

[0009] Furthermore, the heights of the first vertical pole and the second vertical pole are greater than the side opening height of the switch cabinet, and the heights of the movable cross bar on the first vertical pole and the second vertical pole are lower than the side opening height of the switch cabinet.

[0010] Furthermore, an L-shaped slot is provided on the right side of the sliding base.

[0011] Furthermore, the first adjustment mechanism includes a first base, a second base, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first connecting block, a second connecting block, a screw, and a rotating handle. The first base is fixedly installed in the middle position of the upper surface of the fixed cross bar, the second base is fixedly installed in the middle position of the lower surface of the movable cross bar, one end of the first connecting rod is rotatably connected to the top of the first base, and the other end is rotatably connected to the bottom of the first connecting block, one end of the second connecting rod is rotatably connected to the top of the first connecting block, and the other end is rotatably connected to the bottom of the second base, one end of the third connecting rod is rotatably connected to the bottom of the second base, and the other end is rotatably connected to the top of the second connecting block, one end of the fourth connecting rod is rotatably connected to the bottom of the second connecting block, and the other end is rotatably connected to the top of the first base, a threaded hole is opened in the middle of the first connecting block and the second connecting block, one end of the screw passes through the threaded holes of the first connecting block and the second connecting block, and the rotating handle is fixedly installed on the other end of the screw.

[0012] Furthermore, the position on the screw rod connected to the first connecting block is designed as a forward thread, and the position on the screw rod connected to the second connecting block is designed as a reverse thread, and the threaded holes of the first connecting block and the second connecting block are both forward threads.

[0013] Furthermore, a first fixing block and a second fixing block are designed at the right end of the fixing cross bar, and mounting holes are provided on the first fixing block and the second fixing block.

[0014] Furthermore, the second adjustment mechanism includes a first tension component and a second tension component, wherein one end of the first tension component is connected to the first fixed block, and the other end is connected to the adjustment hole on the first support rod, and one end of the second tension component is connected to the second fixed block, and the other end is connected to the adjustment hole on the second support rod.

[0015] Furthermore, the first tension assembly and the second tension assembly have the same structure, including an upper screw rod, a lower screw rod, and an adjustment bolt. The upper screw rod is fixedly installed in the adjustment hole of the first support rod by a bolt, and the lower screw rod is fixedly installed in the mounting hole of the first fixed block by a bolt. The adjustment bolt connects the upper screw rod and the lower screw rod.

[0016] Furthermore, slideways are provided on the upper surfaces of the first support rod and the second support rod, and a fixing plate is slidably installed in the slideways.

[0017] Furthermore, sliding wheels are installed at the four corners below the sliding base.

[0018] Beneficial effects of the present invention:

[0019] The present invention discloses a mobile platform for replacing a built-in current transformer in a switch cabinet, comprising a sliding base, a first vertical pole, a second vertical pole, an upper horizontal pole, a fixed horizontal pole, a movable horizontal pole, a supporting mechanism, a first adjusting mechanism, and a second adjusting mechanism. The mobile platform can replace the traditional manual lifting method, push the current transformer to a fixed position in a cable room of the switch cabinet to carry out the replacement work, provide longitudinal pulling force through the first vertical pole and the second vertical pole, the first vertical pole and the second vertical pole are located outside the switch cabinet, and their heights are greater than the side opening height of the switch cabinet, and they play a limiting role in the height direction, provide transverse pulling force through the sliding base, and an L-shaped card slot is arranged on the right side of the sliding base, which plays a limiting role in the horizontal plane, so that the current transformer in the switch cabinet is located above the supporting mechanism, and manual lifting is replaced to complete the replacement, which greatly improves the work efficiency, and can avoid the safety risks in the equipment replacement process, and improve the safety in the current transformer replacement process, and the support mechanism is moved up and down through the adjustment of the first adjusting mechanism and the second adjusting mechanism, and the position of the current transformer is adjusted to meet the use requirements of switch cabinets of different heights, and the replacement of the current transformer is realized, which is simple to operate, convenient to use, and saves physical strength.

[0020] The present invention provides a mobile platform for replacing a built-in current transformer in a switch cabinet. The first adjustment mechanism includes a first base, a second base, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first connecting block, a second connecting block, a screw, and a rotating handle. The position on the screw connected to the first connecting block is designed as a forward thread, and the position on the screw connected to the second connecting block is designed as a reverse thread. The threaded holes of the first connecting block and the second connecting block both have forward threads. The rotation of the screw is achieved by rotating the rotating handle, so that the first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod connected to the first connecting block and the second connecting block move upward or downward, thereby achieving the up and down movement of the mobile cross bar. The operation is simple, manpower and physical strength consumption is reduced, and work efficiency is improved.

[0021] The present invention provides a mobile platform for replacing a current transformer built into a switch cabinet. The second adjustment mechanism includes a first tension component and a second tension component. The first tension component and the second tension component have the same structure and include an upper screw, a lower screw, and an adjustment bolt. The adjustment bolt connects the upper screw and the lower screw. The lengths of the first tension component and the second tension component are adjusted by the adjustment bolt to adapt to the height after the upper and lower positions of the first adjustment mechanism are adjusted. The entire mobile platform maintains a stable working state to ensure safety in use.

[0022] The present invention provides a mobile platform for replacing a current transformer built into a switch cabinet. The upper surfaces of the first support rod and the second support rod are provided with slideways, and a fixed plate is slidably installed in the slideway. The mobile platform can be installed with a fixed plate to make the movement process of the current transformer more stable, thereby increasing the safety and reliability of use.

[0023] The present invention provides a mobile platform for replacing a built-in current transformer in a switch cabinet. Sliding wheels are installed at the four corners below the sliding base. The platform is moved by the sliding wheels, which reduces manpower consumption and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the overall three-dimensional structure of a mobile platform for replacing built-in current transformers in a switch cabinet proposed for the invention;

[0025] Figure 2 A schematic diagram of the connection structure of the first tension component and the second tension component of a mobile platform for replacing a built-in current transformer in a switch cabinet proposed by the invention;

[0026] Figure 3 A schematic diagram of the structure of a first adjustment mechanism of a mobile platform for replacing a built-in current transformer in a switch cabinet proposed by the invention;

[0027] Figure 4 A schematic diagram of the structure of the first tension component of a mobile platform for replacing a built-in current transformer in a switch cabinet proposed by the invention;

[0028] Figure 5 A schematic diagram of the fixed plate installation structure of a mobile platform for replacing a built-in current transformer in a switch cabinet proposed by the invention;

[0029] Figure 6 A schematic diagram of the structure of a sliding base for replacing a mobile platform for a built-in current transformer in a switch cabinet proposed for the invention;

[0030] Figure 7 A schematic diagram of the replacement status of current operators under the background technology of a mobile platform for replacing built-in current transformers in a switch cabinet proposed by the present invention;

[0031] Figure 8 This is a physical picture of a mobile platform for replacing a built-in current transformer in a switch cabinet proposed by the present invention.

[0032] Description of Reference Numerals

[0033] 1-sliding base, 11-L-shaped slot, 12-sliding wheel, 2-first vertical rod, 21-slide slot, 3-second vertical rod, 4-upper cross bar, 5-fixed cross bar, 51-first fixed block, 52-second fixed block, 6-movable cross bar, 7-support mechanism, 71-first support rod, 711-adjustment hole, 712-slideway, 72-second support rod, 73-fixed plate, 8-first adjustment mechanism, 81-first base, 82-second base, 83-first connecting rod, 84-second connecting rod, 85-third connecting rod, 86-fourth connecting rod, 87-first connecting block, 88-second connecting block, 89-screw, 810-rotating handle, 9-second adjustment mechanism, 91-first tension component, 911-upper screw, 912-lower screw, 913-adjustment bolt, 92-second tension component. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0036] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0037] like Figures 1 to 6 As shown, it shows a specific embodiment of the present invention:

[0038] Embodiment 1

[0039] The present invention discloses a mobile platform for replacing a built-in current transformer in a switch cabinet, comprising a sliding base 1, a first upright pole 2, a second upright pole 3, an upper cross bar 4, a fixed cross bar 5, a mobile cross bar 6, a supporting mechanism 7, a first adjusting mechanism 8, and a second adjusting mechanism 9. The first upright pole 2 and the second upright pole 3 have the same structure, and a slide groove 21 is provided on the inner side. The first upright pole 2 is fixedly installed at the left position above the sliding base 1, and the slide groove 21 side is to the right. The second upright pole 3 is fixedly installed at the right position above the sliding base 1, and the slide groove 21 side is to the left. The upper cross bar 4 and the fixed cross bar 5 are both fixedly installed between the first upright pole 2 and the second upright pole 3. The upper cross bar 4 is located at the upper end position, and the fixed cross bar 5 is located at the lower position. The mobile cross bar 6 is slidably installed between the first upright pole 2 and the second upright pole 3, and is located above the fixed cross bar 5. The supporting mechanism 7 is fixedly installed on the upper surface of the mobile cross bar 6. The first adjusting mechanism 8 is fixedly installed between the fixed cross bar 5 and the mobile cross bar 6. The second adjusting mechanism 9 connects the fixed cross bar 5 and the supporting mechanism 7.

[0040] In this embodiment, Figure 1 As shown, longitudinal pulling force is provided by the first upright pole 2 and the second upright pole 3, and lateral pulling force is provided by the sliding base 1, so that the current transformer in the switch cabinet is located above the supporting mechanism 7, instead of manual lifting, to complete the replacement, which greatly improves the work efficiency. At the same time, it can avoid the safety risks in the equipment replacement process and improve the safety of the current transformer replacement process. The first adjustment mechanism 8 and the second adjustment mechanism 9 are adjusted to realize the up and down movement of the supporting mechanism 7, and the position of the current transformer is adjusted to meet the use requirements of switch cabinets of different heights, so as to realize the replacement of the current transformer. The operation is simple, easy to use, and saves physical strength.

[0041] In this embodiment, the traditional method of replacing the current transformer requires manual lifting in the switch cabinet, which requires the staff to consume a lot of physical strength and is inefficient. The current transformer replacement mobile platform provided by this embodiment can free the hands of the staff, push the mobile platform into the switch cabinet, and fix the position of the mobile platform by using the longitudinal tension provided by the first vertical pole 2 and the second vertical pole 3 and the lateral tension provided by the sliding base 1, so that the support mechanism 7 provides supporting force to place the current transformer, thereby replacing manual lifting, reducing the physical exertion of the staff, and thus improving work efficiency.

[0042] The support mechanism 7 includes a first support rod 71 and a second support rod 72 . The first support rod 71 and the second support rod 72 have the same structure, and an adjustment hole 711 is opened at the right end thereof, and the left end thereof is fixedly mounted on the upper surface of the moving cross bar 6 .

[0043] In this embodiment, Figure 2As shown, the first support rod 71 and the second support rod 72 are fixedly installed above the movable cross bar 6 for placing the current transformer. There is a spacing distance between the first support rod 71 and the second support rod 72, which is convenient for related maintenance and installation operations, and is beneficial to completing the replacement of the current transformer, improving work efficiency, and improving convenience of use.

[0044] Preferably, the heights of the first vertical pole 2 and the second vertical pole 3 are greater than the side opening height of the switch cabinet, and the heights of the movable cross bar 6 on the first vertical pole 2 and the second vertical pole 3 are lower than the side opening height of the switch cabinet.

[0045] Preferably, an L-shaped slot 11 is provided on the right side of the sliding base 1 .

[0046] In the present invention, the first vertical pole 2 and the second vertical pole 3 are located outside the switch cabinet, and their height is greater than the side opening height of the switch cabinet, which plays a limiting role in the height direction. An L-shaped slot 11 is arranged on the right side of the sliding base 1, and the sliding base 1 is inserted under the switch cabinet to play a limiting role in the horizontal plane, so that the current transformer in the switch cabinet is located above the supporting mechanism 7, instead of manual lifting, to complete the replacement, greatly improving work efficiency, and at the same time avoiding safety risks during equipment replacement, ensuring the stability of the mobile platform during use, and improving the safety during the replacement of the current transformer.

[0047] Preferably, the first adjustment mechanism 8 includes a first base 81, a second base 82, a first connecting rod 83, a second connecting rod 84, a third connecting rod 85, a fourth connecting rod 86, a first connecting block 87, a second connecting block 88, a screw 89, and a rotating handle 810. The first base 81 is fixedly installed in the middle position of the upper surface of the fixed cross bar 5, and the second base 82 is fixedly installed in the middle position of the lower surface of the movable cross bar 6. One end of the first connecting rod 83 is rotatably connected to the top of the first base 81, and the other end is rotatably connected to the bottom of the first connecting block 87. One end of the second connecting rod 84 is rotatably connected to the top of the first base 81, and the other end is rotatably connected to the bottom of the first connecting block 87. The third connecting rod 85 is rotatably connected above the first connecting block 87, and the other end is rotatably connected below the second base 82. One end of the third connecting rod 85 is rotatably connected below the second base 82, and the other end is rotatably connected above the second connecting block 88. One end of the fourth connecting rod 86 is rotatably connected below the second connecting block 88, and the other end is rotatably connected above the first base 81. A threaded hole is provided between the first connecting block 87 and the second connecting block 88. One end of the screw rod 89 passes through the threaded holes of the first connecting block 87 and the second connecting block 88, and the rotating handle 810 is fixedly installed on the other end of the screw rod 89.

[0048] In the present invention, Figure 3As shown, the screw rod 89 is rotated by rotating the rotating handle 810, so that the first connecting rod 83, the second connecting rod 84, the third connecting rod 85, and the fourth connecting rod 86 connected to the first connecting block 87 and the second connecting block 88 move upward or downward, thereby realizing the up and down movement of the movable cross bar 6. The operation is simple, manpower and physical exertion are reduced, and work efficiency is improved.

[0049] Preferably, the position on the screw 89 connected to the first connecting block 87 is designed as a forward thread, and the position on the screw 89 connected to the second connecting block 88 is designed as a reverse thread, and the threaded holes of the first connecting block 87 and the second connecting block 88 are both forward threads.

[0050] In the present invention, Figure 3 As shown, by designing the positive and negative threads on the screw rod 89, the first connecting block 87 and the second connecting block 88 can move in the same direction when the rotating handle 810 is rotated, thereby realizing the up and down movement of the movable cross bar 6.

[0051] Embodiment 2

[0052] Based on the above-mentioned embodiment 1, embodiment 2 is proposed for convenient and effective use of the mobile platform.

[0053] Preferably, a first fixing block 51 and a second fixing block 52 are designed at the right end of the fixing cross bar 5, and mounting holes are provided thereon.

[0054] Preferably, the second adjustment mechanism 9 includes a first tension component 91 and a second tension component 92, wherein one end of the first tension component 91 is connected to the first fixed block 51, and the other end is connected to the adjustment hole 711 on the first support rod 71, and one end of the second tension component 92 is connected to the second fixed block 52, and the other end is connected to the adjustment hole 711 on the second support rod 72.

[0055] In the present invention, Figure 2 As shown, after the first adjustment mechanism 8 moves up and down, the second adjustment mechanism 9 connected to the support mechanism 7 and the fixed cross bar 5 also needs to be adjusted to make the structure of the mobile platform more stable. The first fixed block 51 and the first support rod 71 are connected by the first tension component 91, and the second tension component 92 is connected to the second fixed block 52 and the second support rod 72, so as to increase the stability of the platform and improve the safety of use.

[0056] Preferably, the first tension assembly 91 and the second tension assembly 92 have the same structure, including an upper screw rod 911, a lower screw rod 912, and an adjustment bolt 913. The upper screw rod 911 is fixedly installed in the adjustment hole 711 of the first support rod 71 by bolts, and the lower screw rod 912 is fixedly installed in the mounting hole of the first fixed block 51 by bolts. The adjustment bolt 913 connects the upper screw rod 911 and the lower screw rod 912.

[0057] In the present invention, Figure 4 As shown, after the upper and lower positions of the first adjustment mechanism 8 are adjusted, the overall length of the first tension component 91 and the second tension component 92 are adjusted by adjusting the bolt 913 to adapt to the height after the upper and lower positions of the first adjustment mechanism 8 are adjusted. The entire mobile platform maintains a stable working state to ensure safety in use. Adjustment is performed by adjusting the bolt 913, which is simple to operate and easy to use.

[0058] Embodiment 3

[0059] Based on the above two embodiments, embodiment 3 is proposed.

[0060] Preferably, a slideway 712 is provided on the upper surface of the first support rod 71 and the second support rod 72 , and a fixing plate 73 is slidably installed in the slideway 712 .

[0061] In the present invention, Figure 5 As shown, the mobile platform can be installed with a fixing plate 73 to make the movement process of the current transformer more stable, thereby increasing the safety and reliability of use.

[0062] Preferably, sliding wheels 12 are installed at the four lower corners of the sliding base 1 .

[0063] In the present invention, Figure 6 As shown, the platform is moved by the sliding wheel 12, which reduces manpower consumption and improves work efficiency.

[0064] The specific usage and function of this embodiment are as follows:

[0065] When the present invention is in use, the position of the first adjustment mechanism 8 is first adjusted by rotating the handle 810 so that the movable cross bar 6 reaches the required height, thereby the support mechanism 7 reaches the appropriate height. Then, the lengths of the first tension component 91 and the second tension component 92 are adjusted respectively by the adjustment bolt 913 of the second adjustment mechanism 9 so that they adapt to the height adjusted by the movable cross bar 6 to ensure the stability of the entire platform. Then, the mobile platform is pushed into the switch cabinet to disassemble the current transformer. During this process, the first vertical pole 2 and the second vertical pole 3 provide limit in the height direction, and the L-shaped slot 11 of the sliding base 1 provides limit in the horizontal plane to ensure the stability of the entire process. The support platform 7 replaces manual lifting, saves manpower consumption, improves work efficiency, and enhances safety of use.

[0066] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0067] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A mobile platform for replacing built-in current transformers in switch cabinets, characterized in that: The invention comprises a sliding base (1), a first vertical rod (2), a second vertical rod (3), an upper cross bar (4), a fixed cross bar (5), a movable cross bar (6), a supporting mechanism (7), a first adjusting mechanism (8), and a second adjusting mechanism (9). The first vertical rod (2) and the second vertical rod (3) have the same structure, and a slide groove (21) is provided on the inner side. The first vertical rod (2) is fixedly installed at the upper left position of the sliding base (1), with the slide groove (21) on the right side. The second vertical rod (3) is fixedly installed at the upper right position of the sliding base (1), with the slide groove (21) on the left side. The upper cross bar ( 4) and the fixed cross bar (5) are both fixedly installed between the first vertical bar (2) and the second vertical bar (3), the upper cross bar (4) is located at the upper end position, and the fixed cross bar (5) is located at the lower position, the movable cross bar (6) is slidably installed between the first vertical bar (2) and the second vertical bar (3), and is located above the fixed cross bar (5), the support mechanism (7) is fixedly installed on the upper surface of the movable cross bar (6), the first adjustment mechanism (8) is fixedly installed between the fixed cross bar (5) and the movable cross bar (6), and the second adjustment mechanism (9) connects the fixed cross bar (5) and the support mechanism (7); The support mechanism (7) comprises a first support rod (71) and a second support rod (72). The first support rod (71) and the second support rod (72) have the same structure, an adjustment hole (711) is provided at the right end, and the left end is fixedly mounted on the upper surface of the movable cross bar (6).

2. A mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: The height of the first vertical pole (2) and the second vertical pole (3) is greater than the height of the side opening of the switch cabinet, and the height of the movable cross bar (6) on the first vertical pole (2) and the second vertical pole (3) is lower than the height of the side opening of the switch cabinet.

3. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: An L-shaped slot (11) is provided on the right side of the sliding base (1).

4. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: The first adjustment mechanism (8) comprises a first base (81), a second base (82), a first connecting rod (83), a second connecting rod (84), a third connecting rod (85), a fourth connecting rod (86), a first connecting block (87), a second connecting block (88), a screw rod (89), and a rotating handle (810); the first base (81) is fixedly mounted at a middle position on the upper surface of the fixed cross bar (5); the second base (82) is fixedly mounted at a middle position on the lower surface of the movable cross bar (6); one end of the first connecting rod (83) is rotatably connected to the upper part of the first base (81), and the other end is rotatably connected to the lower part of the first connecting block (87); one end of the second connecting rod (84) is rotatably connected to the lower part of the first connecting block (87); One end of the third connecting rod (85) is rotatably connected to the top of the first connecting block (87), and the other end is rotatably connected to the bottom of the second base (82); one end of the third connecting rod (85) is rotatably connected to the bottom of the second base (82), and the other end is rotatably connected to the top of the second connecting block (88); one end of the fourth connecting rod (86) is rotatably connected to the bottom of the second connecting block (88), and the other end is rotatably connected to the top of the first base (81); a threaded hole is provided between the first connecting block (87) and the second connecting block (88); one end of the screw rod (89) passes through the threaded holes of the first connecting block (87) and the second connecting block (88); and the rotating handle (810) is fixedly mounted on the other end of the screw rod (89).

5. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 4, characterized in that: The position on the screw rod (89) that is connected to the first connection block (87) is designed as a forward thread, and the position on the screw rod (89) that is connected to the second connection block (88) is designed as a reverse thread. The threaded holes of the first connection block (87) and the second connection block (88) are both forward threads.

6. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: The right end of the fixed cross bar (5) is designed with a first fixed block (51) and a second fixed block (52), and mounting holes are provided on the first fixed block and the second fixed block (52).

7. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: The second adjustment mechanism (9) comprises a first tension component (91) and a second tension component (92); one end of the first tension component (91) is connected to the first fixed block (51), and the other end is connected to the adjustment hole (711) on the first support rod (71); one end of the second tension component (92) is connected to the second fixed block (52), and the other end is connected to the adjustment hole (711) on the second support rod (72).

8. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 7, characterized in that: The first tension assembly (91) and the second tension assembly (92) have the same structure, and include an upper screw rod (911), a lower screw rod (912), and an adjustment bolt (913); the upper screw rod (911) is fixedly mounted in an adjustment hole (711) of a first support rod (71) by means of bolts; the lower screw rod (912) is fixedly mounted in a mounting hole of a first fixing block (51) by means of bolts; and the adjustment bolt (913) connects the upper screw rod (911) and the lower screw rod (912).

9. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 1, characterized in that: A slideway (712) is provided on the upper surface of the first support rod (71) and the second support rod (72), and a fixing plate (73) is slidably installed in the slideway (712).

10. The mobile platform for replacing built-in current transformers in switch cabinets according to claim 3, characterized in that: Sliding wheels (12) are installed at the four corners below the sliding base (1).

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