Electric appliance cabinet carrying device

Abstract

The utility model relates to an electric appliance cabinet carrying device which comprises a bottom frame, an upper layer frame and a driving device, the bottom frame is used for bearing the upper layer frame, the driving device and an electric appliance cabinet, and trundles are installed at the bottom of the bottom frame. The upper-layer frame is installed on the bottom frame, and blocking rods are arranged at the front end and the rear end of the upper surface of the right end of the upper-layer frame and are perpendicular to the upper surface of the upper-layer frame. The driving device comprises a jacking unit and a pulling unit, and the jacking unit is connected with the left end of the bottom frame and the upper-layer frame; the pulling unit is connected with the left end of the bottom frame and the right end of the upper-layer frame. According to the electric appliance cabinet carrying device, the heavy electric appliance cabinet can be put down or erected, operation is easy, the structure is compact, the electric appliance cabinet carrying device is suitable for upgrading and reconstruction of the electric appliance cabinet in a railway power distribution room, and the problem that the electric appliance cabinet goes in and goes out of the power distribution room, an elevator and a door frame with limited space is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a handling device for electrical cabinets. Background Art

[0002] Railways are important infrastructure in China and the main body for carrying out transportation activities in various regions of the country. Power supply engineers are the basis for ensuring the stable operation of railways. The electricity consumption of the railway transportation system mainly relies on the integrated power supply system of the power grid, and its electricity is mainly used for electric locomotive traction, transportation signal systems, railway dispatching, passenger waiting rooms, and management systems. The power distribution room is an important part of the railway power supply section and is a control system composed of incoming line cables, power distribution switch equipment, and other supporting equipment that can independently control electricity consumption. There are several electrical cabinets configured in the power distribution room, and its main function is to centrally control and manage railway power facilities to ensure stable power supply to the line. With the rapid development of the railway transportation industry, the safe, reliable, and efficient operation of the railway power distribution system has become particularly important. Traditional railway power distribution rooms have problems such as energy waste, difficult fault troubleshooting, and low operation efficiency, and cannot meet the needs of modern railway transportation. Therefore, it is necessary to upgrade the equipment in the power distribution room, which involves the overall replacement of electrical cabinets.

[0003] During the transportation process, the electrical cabinet will pass through multiple doors, such as elevator doors. The height of the upgraded new electrical cabinet is 2.3m, and its weight is about 1.1 tons. The minimum width of the door is 1m, and the minimum height is 2m. Therefore, the new electrical cabinet needs to be laid down to pass through some doors smoothly during transportation. However, due to the large weight of the new electrical cabinet, it is difficult for humans to restore the laid-down new electrical cabinet to an upright position, and due to space limitations, large towing equipment cannot enter the elevator and the power distribution room.

[0004] Therefore, there is an urgent need for a device that is convenient for laying down, restoring to an upright position, and transporting electrical cabinets. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a handling device for electrical cabinets to solve the deficiencies in the prior art. The technical problems to be solved by the utility model are realized through the following technical solutions.

[0006] An electrical cabinet handling device includes a bottom frame, an upper frame, and a driving device. The bottom frame is used to carry the upper frame, the driving device, and the electrical cabinet, and casters are installed at the bottom of the bottom frame. The upper frame is installed on the bottom frame and is used to support the electrical cabinet. At the front and rear ends of the upper surface of the right end of the upper frame, retaining bars are provided, and the retaining bars are perpendicular to the upper surface of the upper frame. The driving device includes a jacking unit and a pulling unit. The jacking unit is connected to the left end of the bottom frame and the upper frame respectively, and is used to jack up or lower the left end of the upper frame, so that the upper frame rotates clockwise or counterclockwise. The pulling unit is connected to the left end of the bottom frame and the right end of the upper frame respectively, and is used to pull the right end of the upper frame to the left or right, so that the upper frame rotates clockwise or counterclockwise.

[0007] Preferably, the jacking unit includes a hydraulic cylinder. The cylinder end of the hydraulic cylinder is rotatably connected to the left end of the bottom frame, and the output end of the hydraulic cylinder is rotatably connected to a crankshaft. The horizontal shaft portion of the crankshaft is installed on the bottom frame and can rotate around its own axis. At the front and rear ends of the horizontal shaft portion of the crankshaft, passive cranks are fixedly installed respectively. One end of the passive crank far from the horizontal shaft portion of the crankshaft is connected to the upper frame and can move left and right relative to the upper frame.

[0008] Preferably, the hydraulic cylinder is a two-stage hydraulic cylinder.

[0009] Preferably, the bottom frame includes bottom side frames I and II that are arranged parallel and spaced apart in the front and rear. A horizontal bottom plate is longitudinally arranged between the bottom side frames I and II. An axis installation groove is provided on the horizontal bottom plate. The horizontal shaft portion of the crankshaft is installed in the axis installation groove and can rotate around its own axis.

[0010] Preferably, the horizontal shaft portion of the crankshaft includes a shaft sleeve and a shaft core. The shaft sleeve is fixedly installed with the passive crank, and the shaft core is rotatably installed in the shaft sleeve.

[0011] Preferably, the axis installation groove penetrates through the bottom side frames I and II. Baffles are respectively installed on the opposite sides of the bottom side frames I and II. The baffles are used to limit the front and rear ends of the horizontal shaft portion of the crankshaft.

[0012] Preferably, the upper frame includes upper side frames arranged in parallel at intervals in the front and rear directions and connecting plates longitudinally installed at intervals between the two upper side frames. The upper side frame includes slats arranged in parallel at intervals in the front and rear directions. The gap between the two slats forms a receiving groove for receiving the passive crank. A moving groove is provided on the opposite side of the slat. A crank wheel shaft is installed at the movable end of the passive crank. After the movable end of the passive crank is placed in the receiving groove, the crank wheel shaft is clamped in the moving groove and can move left and right along the moving groove.

[0013] Preferably, anti-tilting guide wheels are installed on the front and rear sides of the right end of the upper frame. The anti-tilting guide wheels can rotate relative to their own axes. A sliding groove is provided at the right part of the bottom frame. The anti-tilting guide wheels are clamped into the sliding groove and can move left and right along the sliding groove.

[0014] Preferably, the pulling unit includes a lead screw rotatably connected to the left end of the bottom frame. The threaded part of the lead screw is threadedly connected to the right end of the upper frame.

[0015] Preferably, a bushing is installed at the right end of the upper frame. A lead screw bearing seat is provided at the left end of the bottom frame. The threaded part at the right end of the lead screw is connected to the bushing, and the left end is installed in the lead screw bearing seat.

[0016] In the present utility model, during use, first, the upper frame is driven by a driving device to rotate counterclockwise to make the upper frame in a horizontal state. An electrical cabinet is placed on the upper frame on the ground by tools or equipment (such as a forklift, etc.). Then, the handling device is pushed to move. Casters are installed at the bottom of the bottom frame, which is convenient for the movement of the handling device. When the handling device enters an elevator door or other doors, it can pass smoothly. Finally, the electrical cabinet is transported to the power distribution room. After entering the power distribution room, the upper frame is driven by the driving device to rotate clockwise to make the upper frame return to the vertical state, so that the electrical cabinet stands upright again. Then, the electrical cabinet is unloaded from the handling device and placed at the target position in the power distribution room by tools such as a small forklift. The stop bars are arranged at the front and rear ends of the upper surface of the right end of the upper frame, so that the position between the two stop bars is convenient for the activities of tools such as forklifts, thus facilitating the handling and movement of the electrical cabinet.

[0017] Similarly, when the upper frame is in the vertical state and the upper frame is driven by the driving device to rotate counterclockwise to make it horizontal, first, the right end of the upper frame is pulled to the right by the pulling device. When the jacking unit can operate, the left end of the upper frame is then driven by the jacking device to descend downward, and with the continuous pulling of the pulling device, the upper frame is thus restored to the horizontal state.

[0018] A handling device for electrical cabinets provided by the utility model can achieve the laying down or erection of heavy electrical cabinets, has simple operation and a compact structure, is suitable for the upgrading and transformation of electrical cabinets in railway power distribution rooms, and solves the problems of the access of electrical cabinets in power distribution rooms and elevators with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a schematic structural diagram of the utility model when carrying an electrical cabinet;

[0021] Figure 3 is a schematic structural diagram of the bottom frame in the utility model;

[0022] Figure 4 is a schematic structural diagram of the driving device in the utility model;

[0023] The reference numerals in the drawings are as follows: 1, bottom frame; 11, bottom side frame I; 12, bottom side frame II; 13, horizontal bottom plate; 14, side track; 141, chute; 15, shaft mounting groove; 16, mounting plate; 17, caster mounting plate; 18, caster; 2, upper frame; 21, upper side frame; 211, moving groove; 22, connecting plate; 23, bushing; 24, anti-tipping guide wheel; 25, stop bar; 26, lead screw bearing seat; 31, crank shaft; 32, hydraulic cylinder; 33, passive crank; 34, crank wheel shaft; 35, lead screw; 36, baffle; 4, electrical cabinet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the utility model.

[0025] In the utility model, the front, rear, left, and right directions refer to Figure 1 as shown, Figure 1 the left side shown in is the left, and the right side is the right.

[0026] An electrical cabinet handling device, the improvement thereof lies in: including a bottom frame 1, an upper frame 2 and a driving device. The bottom frame 1 is used to carry the upper frame 2, the driving device and the electrical cabinet 4, and casters 18 are installed at the bottom of the bottom frame 1; the upper frame 2 is installed on the bottom frame 1, and the upper frame 2 is used to support the electrical cabinet 4. At the front and rear ends of the upper surface of the right end of the upper frame 2, there are provided retaining bars 25, and the retaining bars 25 are perpendicular to the upper surface of the upper frame 2; the driving device includes a jacking unit and a pulling unit. The jacking unit is respectively connected to the left end of the bottom frame 1 and the upper frame 2, and is used to jack up or lower the left end of the upper frame 2, so that the upper frame 2 rotates clockwise or counterclockwise; the pulling unit is respectively connected to the left end of the bottom frame 1 and the right end of the upper frame 2, and is used to pull the right end of the upper frame 2 to the left or right, so that the upper frame 2 rotates clockwise or counterclockwise.

[0027] In this embodiment, referring to Figure 1 and Figure 2 As shown, when in use, first drive the upper frame 2 to rotate counterclockwise through the driving device to make the upper frame 2 in a horizontal state. On the ground, place the electrical cabinet 4 on the upper frame 2 through tools or equipment (such as a forklift, etc.), and use straps to firmly fix the electrical cabinet 4 on the upper frame 2. Then push the handling device to move. Casters are installed at the bottom of the bottom frame 1, which is convenient for the movement of the handling device; when the handling device enters the elevator door or other doors, it can pass smoothly. Finally, transport the electrical cabinet 4 to the power distribution room. After entering the power distribution room, drive the upper frame 2 to rotate clockwise through the driving device to make the upper frame 2 return to the vertical state, so that the electrical cabinet 4 stands upright again. Then use tools such as a small forklift to unload the electrical cabinet 4 from the handling device and place it at the target position in the power distribution room. The retaining bars 25 are arranged at the front and rear ends of the upper surface of the right end of the upper frame 2, so that the position between the two retaining bars 25 is convenient for the activities of tools such as forklifts, thus facilitating the handling and movement of the electrical cabinet 4.

[0028] When the upper frame 2 is in a horizontal state and the upper frame 2 is rotated clockwise through the driving device to make it vertical, first jack up the left end of the upper frame 2 through the jacking unit. At the same time, pull the right end of the upper frame 2 to the left through the pulling unit. Due to the limited size of the whole handling device, the stroke of the jacking unit is limited. When the jacking unit is at the limit position of jacking, the upper frame 2 is not in a vertical state. At this time, continue to pull the right end of the upper frame 2 to the left through the pulling unit, so that the upper frame 2 continues to rotate clockwise, and finally makes the upper frame 2 in a vertical state.

[0029] Here, when the upper frame 2 is in a horizontal state and is flipped over, the reason why the upper frame 2 is lifted up by the lifting unit in combination with the pulling unit is that an electrical cabinet 4 is placed on the upper frame 2, and the weight of the electrical cabinet 4 is as high as about 1.1 tons. If the right end of the upper frame 2 in a horizontal state is first pulled by the pulling unit, and the intention is to flip the upper frame 2 clockwise due to the left movement of the right end of the upper frame 2, it will undoubtedly be half the result with twice the effort. It consumes a lot of energy and has little effect. It is also possible that the pulling unit and the upper frame 2 compete with each other, causing damage to the pulling unit or the upper frame 2. Therefore, it is necessary to lift the upper frame 2 by the lifting unit and pull the upper frame 2 by the pulling unit at the same time to save more effort.

[0030] Here, the reason why both the lifting unit and the pulling unit are provided instead of just the lifting unit is that due to the space limitation of the elevator and the door, the travel of the lifting device is also limited. Therefore, it is necessary to match it with the pulling unit to meet the space requirements and achieve the purpose of making the upper frame 2 vertical or horizontal.

[0031] Similarly, when the upper frame 2 is in a vertical state, the driving device drives the upper frame 2 to flip counterclockwise to make it horizontal. First, the right end of the upper frame 2 is pulled to the right by the pulling device until the jacking unit can be operated. Then, the left end of the upper frame 2 is driven downward by the jacking device, and the pulling device is continuously pulled to restore the upper frame 2 to a horizontal state.

[0032] The electrical cabinet transport device provided in this embodiment can realize the laying down or standing up of a heavy electrical cabinet 4. It is simple to operate and has a compact structure. It is suitable for upgrading and renovating electrical cabinets in railway power distribution rooms, and solves the problem of electrical cabinets entering and exiting power distribution rooms, elevators and door frames with limited space.

[0033] Further, refer to Figure 4 As shown, the lifting unit includes a hydraulic cylinder 32, the cylinder end of the hydraulic cylinder 32 is rotatably connected to the left end of the bottom frame 1, the output end of the hydraulic cylinder 32 is rotatably connected to the crank shaft 31, the transverse axis of the crank shaft 31 is installed on the bottom frame 1 and can rotate around its own axis, and the front and rear ends of the transverse axis of the crank shaft 31 are respectively fixed with passive cranks 33, and one end of the passive crank 33 away from the transverse axis of the crank shaft 31 is connected to the upper frame 2 and can move left and right relative to the upper frame 2.

[0034] Furthermore, the hydraulic cylinder 32 is a two-stage hydraulic cylinder.

[0035] Further, refer to Figure 3As shown, the bottom frame 1 includes a bottom side frame I 11 and a bottom side frame II 12 that are arranged in parallel at a distance from front to back. A horizontal bottom plate 13 is longitudinally arranged between the bottom side frame I 11 and the bottom side frame II 12. An axle mounting groove 15 is provided on the horizontal bottom plate 13, and the horizontal axle portion of the crank axle 31 is mounted in the axle mounting groove 15 and can rotate around its own axis.

[0036] Furthermore, a caster mounting plate 17 is installed at the right ends of the bottom side frame I 11 and the bottom side frame II 12, and the caster 18 is installed below the caster mounting plate 17.

[0037] Furthermore, the horizontal axle portion of the crank axle 31 includes a sleeve and an axle core. The sleeve is fixedly installed with the passive crank 33, and the axle core is rotatably installed in the sleeve.

[0038] Furthermore, the axle mounting groove 15 penetrates through the bottom side frame I 11 and the bottom side frame II 12. Baffles 36 are respectively installed on the opposite sides of the bottom side frame I 11 and the bottom side frame II 12, and the baffles 36 are used to limit the front and rear ends of the horizontal axle portion of the crank axle 31.

[0039] Furthermore, the upper layer frame 2 includes an upper side frame 21 that is arranged in parallel at a distance from front to back and a connecting plate 22 that is longitudinally spaced and installed between the two upper side frames 21. The upper side frame 21 includes slats that are arranged in parallel at a distance from front to back. The gap between the two slats forms a receiving groove for receiving the passive crank 34. A moving groove 211 is provided on the opposite sides of the slats. An end of the passive crank 33 is installed with a crank wheel axle 34. After the end of the passive crank 33 is placed in the receiving groove, the crank wheel axle 34 is clamped in the moving groove 211 and can move left and right along the moving groove 211.

[0040] Furthermore, anti-tipping guide wheels 24 are installed on the front and rear sides of the right end of the upper layer frame 2. The anti-tipping guide wheels 24 can rotate relative to their own axes. A sliding groove 141 is provided on the right part of the bottom frame 1, and the anti-tipping guide wheels 24 are clamped into the sliding groove 141 and can move left and right along the sliding groove 141.

[0041] Furthermore, side tracks 14 are respectively provided at the front and rear ends of the upper surface of the right part of the bottom frame 1, and the sliding groove 141 is provided on the opposite sides of the two side tracks 14.

[0042] Furthermore, the side tracks 14 are respectively provided on the upper surfaces of the bottom side frame I 11 and the bottom side frame II 12.

[0043] In this embodiment, when the upper frame 2 is in a horizontal state and is rotated clockwise by the driving device to make it vertical, the hydraulic cylinder 32 is started. The output end of the hydraulic cylinder 32 extends, driving the crankshaft 31 to rotate clockwise, thereby driving the passive crank 33 to rotate clockwise, so that the left end of the passive crank 33 is lifted, and then the left end of the upper frame 2 is jacked up. At the same time, the crank wheel shaft 34 moves to the right in the moving groove 211, and the anti-tilting guide wheel 24 moves to the left in the sliding groove 141, so that the upper frame 2 rotates clockwise. The hydraulic cylinder 32 is a two-stage hydraulic cylinder, enabling the hydraulic cylinder to have a longer stroke on the premise that the size is as small as possible.

[0044] Further, the pulling unit includes a lead screw 35 rotatably connected to the left end of the bottom frame 1, and the threaded portion of the lead screw 35 is threadedly connected to the right end of the upper frame 2.

[0045] In this embodiment, when the right end of the bottom frame 1 is pulled left or right by the pulling unit, the lead screw motor is started to drive the lead screw 35 to rotate. The threaded portion at the right end of the lead screw 35 drives the right end of the upper frame 2 to move left and right. At the same time, the crank wheel shaft 34 at the left end of the passive crank 33 moves right or left in the moving groove 211, and the anti-tilting guide wheel 24 moves left or right in the sliding groove 141, so that the upper frame 2 rotates clockwise or counterclockwise.

[0046] Further, a bushing 23 is installed at the right end of the upper frame 2, a lead screw bearing seat 26 is provided at the left end of the bottom frame 1, and the threaded portion at the right end of the lead screw 35 is connected to the bushing 23 and the left end is installed in the lead screw bearing seat 26.

[0047] Further, the anti-tilting guide wheels 24 are installed at the front and rear ends of the bushing 23.

[0048] It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0051] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0052] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "above" etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" another device or structure will then be positioned "below" or "under" the other device or structure. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the corresponding explanations for the spatial relative descriptions used herein will be made.

[0053] In the detailed description above, reference has been made to the accompanying drawings which form a part hereof. In the drawings, like symbols typically identify like components, unless the context indicates otherwise. The illustrated embodiments described in the detailed description, the drawings and the claims are not meant to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0054] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electrical cabinet handling device, characterized in that: It includes a bottom frame (1), an upper frame (2) and a driving device. The bottom frame (1) is used to carry the upper frame (2), the driving device and the electrical cabinet (4), and casters (18) are installed at the bottom of the bottom frame (1); the upper frame (2) is installed on the bottom frame (1), and the upper frame (2) is used to support the electrical cabinet (4). At the front and rear ends of the upper surface of the right end of the upper frame (2), retaining bars (25) are provided, and the retaining bars (25) are perpendicular to the upper surface of the upper frame (2); the driving device includes a jacking unit and a pulling unit. The jacking unit is respectively connected to the left end of the bottom frame (1) and the upper frame (2), and is used to jack up or lower the left end of the upper frame (2), so that the upper frame (2) rotates clockwise or counterclockwise; the pulling unit is respectively connected to the left end of the bottom frame (1) and the right end of the upper frame (2), and is used to pull the right end of the upper frame (2) to the left or right, so that the upper frame (2) rotates clockwise or counterclockwise.

2. The electrical cabinet handling device according to claim 1, characterized in that: The jacking unit includes a hydraulic cylinder (32). The cylinder body end of the hydraulic cylinder (32) is rotatably connected to the left end of the bottom frame (1), and the output end of the hydraulic cylinder (32) is rotatably connected to a crankshaft (31). The horizontal shaft part of the crankshaft (31) is installed on the bottom frame (1) and can rotate around its own axis. At the front and rear ends of the horizontal shaft part of the crankshaft (31), passive cranks (33) are respectively and fixedly installed. One end of the passive crank (33) far from the horizontal shaft part of the crankshaft (31) is connected to the upper frame (2) and can move left and right relative to the upper frame (2).

3. The electrical cabinet handling device according to claim 2, wherein: The hydraulic cylinder (32) is a two-stage hydraulic cylinder.

4. The electrical cabinet handling device according to claim 2, characterized in that: The bottom frame (1) includes a bottom side frame I (11) and a bottom side frame II (12) which are arranged parallel and spaced apart from front to back. A transverse bottom plate (13) is longitudinally arranged between the bottom side frame I (11) and the bottom side frame II (12). An axial mounting groove (15) is provided on the transverse bottom plate (13), and the horizontal shaft part of the crankshaft (31) is installed in the axial mounting groove (15) and can rotate around its own axis.

5. The electrical cabinet handling device according to claim 2, characterized in that: The horizontal shaft part of the crankshaft (31) includes a shaft sleeve and a shaft core. The shaft sleeve is fixedly installed with the passive crank (33), and the shaft core is rotatably installed in the shaft sleeve.

6. The handling device for an electrical cabinet according to claim 4, wherein: The axial mounting groove (15) penetrates through the bottom side frame I (11) and the bottom side frame II (12). Baffles (36) are respectively installed on the opposite sides of the bottom side frame I (11) and the bottom side frame II (12), and the baffles (36) are used to limit the front and rear ends of the horizontal shaft part of the crankshaft (31).

7. The handling device for an electrical cabinet according to claim 2, characterized in that: The upper frame (2) includes an upper side frame (21) which is arranged parallel and spaced apart from front to back and connecting plates (22) which are longitudinally spaced and installed between the two upper side frames (21). The upper side frame (21) includes slats which are arranged parallel and spaced apart from front to back. The gap between the two slats forms a receiving groove for receiving the passive crank (33). Moving grooves (211) are provided on the opposite sides of the slats. A crank wheel shaft (34) is installed at the movable end of the passive crank (33). After the movable end of the passive crank (33) is placed in the receiving groove, the crank wheel shaft (34) is clamped in the moving groove (211) and can move left and right along the moving groove (211).

8. The handling device for an electrical cabinet according to claim 6, characterized in that: Anti-tilting guide wheels (24) are installed on the front and rear sides of the right end of the upper frame (2). The anti-tilting guide wheels (24) can rotate relative to their own axes. A sliding groove (141) is provided at the right part of the bottom frame (1). The anti-tilting guide wheels (24) are clamped into the sliding groove (141) and can move left and right along the sliding groove (141).

9. The handling device for an electrical cabinet according to claim 2, wherein: The pulling unit includes a lead screw (35) rotatably connected to the left end of the bottom frame (1). The threaded part of the lead screw (35) is threadedly connected to the right end of the upper frame (2).

10. A handling device for an electrical cabinet according to claim 9, characterized in that: A bushing (23) is installed at the right end of the upper frame (2). A lead screw bearing seat (26) is provided at the left end of the bottom frame (1). The threaded part at the right end of the lead screw (35) is connected to the bushing (23), and the left end is installed in the lead screw bearing seat (26).

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