An auxiliary mounting device for a frequency converter

By designing an auxiliary installation device for frequency converters and using a winding mechanism to control the winding and unwinding of the wire rope, the problem of difficult installation and disassembly of medium and high voltage frequency converters was solved, achieving efficient lifting and position adjustment of the frequency converters and reducing the labor intensity of operators.

CN224394481UActive Publication Date: 2026-06-23CHINA TOBACCO GUIZHOU IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUIZHOU IND
Filing Date
2025-06-13
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, the installation and disassembly of medium and high voltage frequency converters are difficult, requiring the cooperation of multiple people, posing safety hazards, and having limited operating space, resulting in high labor intensity and low efficiency for operators.

Method used

Design an auxiliary installation device for frequency converters, including a base, support frame, suspension arm, pulley block, winding mechanism and wire rope. The winding mechanism controls the winding and unwinding of the wire rope to realize the lifting and positioning adjustment of the frequency converter.

Benefits of technology

It reduces the labor intensity of operators, improves the installation and disassembly efficiency of frequency converters, avoids the safety hazards caused by manual lifting, and is convenient and quick to operate.

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Abstract

The utility model discloses an auxiliary installation device for frequency converter, include: base, one side of base is equipped with counterweight subassembly, support frame, support frame is located the other side of base, suspension arm, along the first direction extension, suspension arm includes fixed end and cantilever end, and fixed end is connected with support frame, pulley block, including first pulley, second pulley and third pulley, and first pulley sets up in cantilever end, and second pulley sets up in the upper end of support frame, and third pulley is located on base, winding mechanism, set up on base, and winding mechanism is located between counterweight subassembly and third pulley, steel wire rope, and both ends of steel wire rope are respectively winding end and hang and hang end, and winding end is wound in winding mechanism, and hang and hang end in proper order and pass over third pulley's below, second pulley's above and first pulley's above after, and hang and hang end downwardly extends from cantilever end, and the hook subassembly is equipped on hang and hang end. The utility model can reduce the operation intensity of operating personnel, improve the operation efficiency of frequency converter installation and removal.
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Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, and in particular to an auxiliary installation device for frequency converters. Background Technology

[0002] With the rapid development of power electronics technology, medium and high voltage frequency converters, as a product of the 21st-century development of power electronics technology, are widely used in many fields. Because frequency converters are mostly installed in electrical control cabinets, and medium and high voltage frequency converters have high power modules, many electronic components, are heavy, and are installed at a high height, replacing a heavy frequency converter inside the electrical control cabinet requires the cooperation of multiple people to complete the replacement work. When disassembling an old frequency converter, it is necessary to manually and continuously lift the frequency converter before removing the back fixing bolts until it is completely disassembled and smoothly carried out. When installing a new frequency converter, it is also necessary to manually and continuously lift it, ensuring that the lifting is stable and adjusting the position to align with the bolt fixing holes for installation. Replacing a frequency converter requires a long period of manual pushing and moving. The control cabinet door is narrow, and the operating space is limited, making it difficult to operate. When multiple people are operating, they are constrained by the space. The frequency converter itself is relatively heavy, which poses a significant hazard to the workers. During the process of lifting the frequency converter, it may shake, tip over, or even slip, causing damage to the frequency converter and the components inside the cabinet, and may also injure the workers. Utility Model Content

[0003] The purpose of this invention is to solve the problem of difficult installation and disassembly of frequency converters in the prior art. This invention provides an auxiliary installation device for frequency converters, which can reduce the workload of operators and improve the efficiency of frequency converter installation and disassembly.

[0004] To solve the above-mentioned technical problems, the present invention provides an auxiliary installation device for a frequency converter, comprising:

[0005] The base has a counterweight component on one side.

[0006] A support frame is located on the other side of the base;

[0007] The suspension arm extends along a first direction, with a fixed end and a cantilever end at both ends along the first direction, and the fixed end is connected to the support frame.

[0008] The pulley block includes a first pulley, a second pulley and a third pulley. The first pulley is rotatably mounted on the cantilever end, the second pulley is rotatably mounted on the upper end of the support frame, and the third pulley is rotatably mounted on the base. The third pulley is located between the counterweight assembly and the support frame.

[0009] A winding mechanism is mounted on the base and is located between the counterweight assembly and the third pulley;

[0010] The wire rope has a coiled end and a hanging end at its two ends. The coiled end is wound up by a winding mechanism, and the hanging end passes under the third pulley, above the second pulley, and above the first pulley in sequence before extending downward from the cantilever end. The hanging end is equipped with a hook assembly.

[0011] According to another specific embodiment of the present invention, the support frame is a rectangular frame structure, and two first reinforcing ribs and two second reinforcing ribs are provided between the support frame and the base. The two first reinforcing ribs are respectively provided on both sides of the support frame along the second direction, which is perpendicular to the first direction. The two second reinforcing ribs are located between the support frame and the winding mechanism.

[0012] According to another specific embodiment of the present invention, the suspension arm is a rectangular frame structure, and the suspension arm includes two arms extending along a first direction, with a third reinforcing rib provided between the two arms and the support frame.

[0013] According to another specific embodiment of the present invention, it also includes a limiting block connected to the wire rope. The limiting block is located above the hanging end, and the limiting block has a hole that passes through the limiting block along the axial direction, through which the wire rope passes.

[0014] According to another specific embodiment of the present invention, the limiting block is fixedly connected to the wire rope;

[0015] Alternatively, the limiting block can slide along the wire rope, and an elastic element is provided between the limiting block and the hanging end. The upper end of the elastic element is connected to the limiting block, and the lower end of the elastic element is connected to the hanging end. The elastic element can generate compressive deformation along its extension direction.

[0016] According to another specific embodiment of the present invention, the hook assembly includes a first branch rope, a second branch rope, a first wire rope clip, and a second wire rope clip. One end of both the first branch rope and the second branch rope is connected to the hanging end of the wire rope. The first wire rope clip is disposed at the other end of the first branch rope, and the second wire rope clip is disposed at the other end of the second branch rope.

[0017] According to another specific embodiment of the present invention, it also includes a push rod, the bottom end of which is connected to the base, and the push rod is located on the side of the counterweight assembly away from the support frame.

[0018] According to another specific embodiment of the present invention, the counterweight assembly includes a plurality of cuboid counterweight blocks, and handles are provided at both ends of the counterweight blocks.

[0019] According to another specific embodiment of the present invention, it also includes four L-shaped limiting members, which are respectively disposed at the four corners of the counterweight.

[0020] According to another specific embodiment of the present invention, four rolling wheels are provided below the base, and the four rolling wheels are respectively located at the four corners of the base.

[0021] According to the auxiliary installation device for frequency converters provided by this utility model, when it is necessary to lift the frequency converter, first connect the hook assembly to the frequency converter, then rotate the winding mechanism to wind the wire rope around it for retraction. During this process, the hanging end rises, thereby lifting the frequency converter. The operator can adjust the position of the hanging end through the winding mechanism, and thus adjust the height of the lifted frequency converter. When it is necessary to lower the frequency converter, rotate the winding mechanism in the opposite direction to release the wire rope. The hanging end moves downward under the weight of the frequency converter, thereby slowly lowering the frequency converter. When the frequency converter moves to the appropriate position, the winding mechanism stops working. This utility model, by controlling the winding and releasing operation of the wire rope through the winding mechanism, can raise and lower the frequency converter without manual lifting, and the position adjustment is convenient and quick, reducing the workload of operators and improving the efficiency of frequency converter installation and disassembly. Attached Figure Description

[0022] Figure 1 This is a front view of an auxiliary installation device for a frequency converter provided in an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of an auxiliary installation device for a frequency converter provided in an embodiment of the present invention;

[0024] Figure 3 Show Figure 2 A magnified view of part A in the diagram.

[0025] Explanation of icon numbers:

[0026] 1. Base, 11. Directional wheel, 12. Universal wheel, 2. Counterweight assembly, 21. Counterweight block, 211. Handle, 22. Limiting component, 3. Support frame, 31. First reinforcing rib, 32. Second reinforcing rib, 33. Third reinforcing rib, 34. Vertical frame, 35. Horizontal frame, 4. Suspension arm, 41. Arm, 42. Fixed end, 43. Cantilever end, 5. Pulley block, 51. First pulley, 52. Second pulley, 53. Third pulley, 6. Winding mechanism, 7. Wire rope, 71. Winding end, 72. Hanging end, 73. Hook assembly, 731. First branch rope, 732. Second branch rope, 733. First wire rope clip, 734. Second wire rope clip, 8. Limiting block, 9. Push rod. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] One embodiment of this utility model provides an auxiliary installation device for frequency converters. For example... Figure 1 and Figure 2As shown, in this embodiment, the auxiliary installation device includes:

[0034] Base 1, with a counterweight component 2 on one side;

[0035] Support frame 3 is located on the other side of base 1;

[0036] Suspension arm 4 extends along a first direction, suspension arm 4 along the first direction (e.g. Figure 1 The two ends (as shown in the x-direction) are a fixed end 42 and a cantilever end 43, respectively, with the fixed end 42 connected to the support frame 3;

[0037] The pulley block 5 includes a first pulley 51, a second pulley 52 and a third pulley 53. The first pulley 51 is rotatably mounted on the cantilever end 43, the second pulley 52 is rotatably mounted on the upper end of the support frame 3, and the third pulley 53 is rotatably mounted on the base 1. The third pulley 53 is located between the counterweight assembly 2 and the support frame 3.

[0038] The winding mechanism 6 is mounted on the base 1 and is located between the counterweight assembly 2 and the third pulley 53.

[0039] The wire rope 7 has a winding end 71 and a hanging end 72 at its two ends. The winding end 71 is wound up by the winding mechanism 6. The hanging end 72 passes under the third pulley 53, above the second pulley 52 and above the first pulley 51 in sequence, and then extends downward from the cantilever end 43. The hanging end 72 is provided with a hook assembly 73, which is used to suspend the frequency converter.

[0040] Using this technical solution, when it is necessary to lift the frequency converter, first connect the hook assembly 73 to the frequency converter, then rotate the winding mechanism 6 to wind the wire rope 7 onto the winding mechanism 6 to retract the wire rope 7. During this process, the hanging end 72 rises, thereby lifting the frequency converter. The operator can adjust the position of the hanging end 72 through the winding mechanism 6, thereby adjusting the height of the lifted frequency converter.

[0041] When the inverter needs to be lowered, the winding mechanism 6 is rotated in the reverse direction to release the wire rope 7. The hanging end 72 moves downward under the weight of the inverter, thus slowly lowering the inverter. When the inverter reaches the appropriate position, the winding mechanism 6 stops working.

[0042] This invention enables the raising and lowering of the frequency converter by controlling the winding mechanism 6 to wind and unwind the wire rope 7. It eliminates the need for manual lifting, and the position adjustment is convenient and quick, reducing the workload of operators and improving the efficiency of frequency converter installation and disassembly.

[0043] In this embodiment, the counterweight assembly 2 can fix the center of gravity of the auxiliary installation device. The winding mechanism 6 is located on the side close to the counterweight assembly 2, so that the center of gravity of the base 1 is shifted to the side of the counterweight assembly 2. In this way, the winding mechanism 6 itself can also be used as part of the counterweight to increase the weight of the counterweight, reduce the number of counterweight assemblies 2 used, and make the whole device lighter.

[0044] It should be noted that the winding mechanism 6 in this utility model can be an electric mechanism for winding steel wire rope commonly used in the prior art, and this utility model does not impose any restrictions on it.

[0045] The suspension arm 4 extends along a first direction and includes a fixed end 42 and a cantilever end 43. The fixed end 42 is connected to the top of the support frame 3, and the cantilever end 43 is located on the side away from the support frame 3. The first pulley 51 is located at the cantilever end 43, and the hanging end 72 of the wire rope 7 passes over the first pulley 51 and extends downward.

[0046] When installing the frequency converter, ropes can be tied to the outside of the frequency converter, and the hook assembly 73 is connected to the ropes to connect the wire rope 7 to the frequency converter. After the frequency converter is lifted, the cantilever end 43 of the suspension arm 4 can be extended into the cabinet using the suspension arm 4, so that the frequency converter can be moved into the cabinet for installation.

[0047] Optional, see reference Figure 2 The first pulley 51, the second pulley 52, the third pulley 53 and the winding mechanism 6 are located in the middle of the device along the y direction, so that the wire rope 7 is kept in the vertical tangent of the central axis of the entire device, preventing the auxiliary installation device from becoming unbalanced when suspending the frequency converter.

[0048] In addition, in this embodiment, the wire rope 7 coming out of the winding mechanism 6 first passes through the third pulley 53 located on the base 1, and then the wire rope 7 is pulled upward to the top of the support frame 3. Thus, the wire rope 7 does not occupy the space above the base 1, making it convenient for the operator to operate.

[0049] Furthermore, the support frame 3 is a rectangular frame structure, and two first reinforcing ribs 31 and two second reinforcing ribs 32 are provided between the support frame 3 and the base 1. The two first reinforcing ribs 31 are respectively located along the second direction of the support frame 3 (e.g., ...). Figure 2 On both sides of the first direction (as shown in the y-direction), the second direction is perpendicular to the first direction, and the two second reinforcing ribs 32 are located between the support frame 3 and the winding mechanism 6.

[0050] The support frame 3 is provided with a first reinforcing rib 31 and a second reinforcing rib 32 on the left and right sides and the rear side, respectively, so that the support frame 3 is not easily deformed and the stability of the support can be improved.

[0051] Furthermore, the included angle α between the second reinforcing rib 32 and the base 1 is 60°.

[0052] In this embodiment, the second reinforcing rib 32 and the upper end of the support frame 3 are close to the middle of the support frame 3, thereby further improving the stability of the support.

[0053] Specifically, in this embodiment, the support frame 3 includes two vertical frames 34 and a horizontal frame 35 disposed between the two vertical frames 34. The two vertical frames 34 extend vertically and are spaced a certain distance apart, with their bottom ends fixed to one edge of the base 1. The horizontal frame 35 is disposed between the two vertical frames 34, and its two ends are fixedly connected to their respective vertical frames 34. Optionally, two horizontal frames 35 are provided between the two vertical frames 34, one horizontal frame 35 being located in the middle of the vertical frame 34 and the other horizontal frame 35 being located near the upper end of the vertical frame 34. Alternatively, multiple horizontal frames 35 can be provided between the two vertical frames 34 to increase the stability of the support frame 3.

[0054] Furthermore, the suspension arm 4 is a rectangular frame structure, and the two arms 41 extending along the first direction of the suspension arm 4 are provided with a third reinforcing rib 33 between the two arms 41 and the support frame 3.

[0055] Specifically, in this embodiment, the suspension arm 4 includes two arms 41 extending along a first direction. The distance between the two arms 41 is the same as the distance between the two vertical frames 34 of the support frame 3. One end of each arm 41 serves as a fixed end 42, connected to the top of the two vertical frames 34 respectively. The other end of each arm 41 serves as a cantilever end 43, extending away from the support frame 3. A third reinforcing rib 33 is provided between the arm 41 and its corresponding vertical frame 34 to support the suspension arm 4.

[0056] Furthermore, it also includes a limiting block 8, which is directly or indirectly connected to the wire rope 7, and the limiting block 8 is located above the hanging end 72. The limiting block 8 has a hole that passes through the limiting block 8 along the axial direction, through which the wire rope 7 passes, and the hook assembly 73 is located below the limiting block 8.

[0057] By adopting this technical solution, a disc-shaped limiting block 8 is set above the hanging end 72, which can limit the range of upward movement of the hanging end 72 and prevent the hanging end 72 from passing the first pulley 51.

[0058] Specifically, the hole on the limiting block 8 is located at the center of the limiting block 8, and the hanging end 72 is spaced a certain distance from the bottom of the limiting block 8.

[0059] This application does not limit the connection method between the limiting block 8 and the wire rope 7. In some embodiments, the limiting block 8 and the wire rope 7 are directly connected. In other embodiments, the limiting block 8 and the wire rope 7 are connected by an elastic element. Specifically, the elastic element is disposed between the limiting block 8 and the hanging end 72 of the wire rope 7, and the elastic element can be a spring (not shown in the figure). The spring is sleeved on the outside of the wire rope 7, and the upper end of the spring is connected to the lower surface of the limiting block, and the lower end of the spring is connected to the hanging end 72, so that the limiting block 8 can slide up and down along the wire rope 7. In this way, if the limiting block 8 collides with the first pulley 51 during the upward displacement of the hanging end 72, the spring can play a buffering role to avoid damage to the pulley or the frequency converter.

[0060] Furthermore, such as Figure 3 As shown, the hook assembly 73 includes a first branch rope 731, a second branch rope 732, a first wire rope clip 733, and a second wire rope clip 734. One end of the first branch rope 731 and the second branch rope 732 are both connected to the hanging end 72 of the wire rope 7. The first wire rope clip 733 is located at the other end of the first branch rope 731, and the second wire rope clip 734 is located at the other end of the second branch rope 732.

[0061] Specifically, in this embodiment, the first branch rope 731 and the second branch rope 732 each include a sub-wire rope. For example, the end of the hanging end 72 of the wire rope 7 is folded back upwards, and a U-bolt is used to fasten the folded section to the wire rope, thereby locking the folded section to the wire rope and forming a wire rope loop at the end of the wire rope 7. One end of the sub-wire rope of the first branch rope 731 passes through the aforementioned wire rope loop and is connected to the main body of the sub-wire rope via a U-bolt. The other end of the sub-wire rope is folded back and also connected to the main body of the sub-wire rope via a U-bolt. A first wire rope clip 733 is disposed on the folded end of the first branch rope 731, thereby forming the first branch rope 731, which is connected to the hanging end 72 of the wire rope 7, and the first wire rope clip 733 is connected to the first branch rope 731. The connection method between the second branch rope 732 and the wire rope 7 is the same as that between the first branch rope 731 and the wire rope 7, and will not be described again here.

[0062] The above is merely an example illustrating the connection method between the first branch rope, the second branch rope, and the wire rope, and is not intended to limit this application. In other embodiments, other connection methods may also be used.

[0063] Optionally, the first branch rope 731 and the second branch rope 732 are of the same length. In this way, two branch ropes of the same length are branched off from the hanging end 72 of the wire rope 7, so that the first wire rope clip 733 and the second wire rope clip 734 are at the same height during use, thus preventing the frequency converter from tilting or slipping due to the shift of the center of gravity when suspending the frequency converter.

[0064] Furthermore, it also includes a push rod 9, the bottom end of which is connected to the base 1, and the push rod 9 is located on the side of the counterweight assembly 2 away from the support frame 3.

[0065] Specifically, the push rod 9 is fixed vertically to one side of the base 1, located outside the counterweight assembly 2 and opposite the support frame 3. The operator can move the entire device by gripping the push rod 9.

[0066] Furthermore, the counterweight assembly 2 includes multiple cuboid counterweight blocks 21, each with a handle 211 at both ends. This design facilitates the placement and removal of the counterweight blocks 21. During use, the number of counterweight blocks 21 can be increased or decreased according to the weight of the frequency converter.

[0067] Furthermore, it also includes four L-shaped limiting members 22, which are respectively located at the four corners of the counterweight 21.

[0068] Specifically, the four corners of the counterweight 21 are right angles, and the limiting member 22 is an L-shaped angle steel. The limiting member 22 is vertically set at the four corners of the counterweight 21 to limit the displacement of the counterweight 21, which can effectively prevent the counterweight 21 from slipping or shaking. In addition, when adding or removing the counterweight 21, the placement position of the counterweight 21 can be standardized to avoid the center of gravity of the counterweight assembly 2 from shifting, thereby ensuring the stability of the device during use.

[0069] Furthermore, four rollers are provided below the base 1, with the four rollers located at the four corners of the base 1 respectively.

[0070] Specifically, in this embodiment, two of the four rolling wheels are directional wheels 11, which are located below the base 1 with the support frame 3 to provide directional movement for the movement of the entire device; the other two rolling wheels are omnidirectional wheels 12, which are located below the base 1 near the counterweight assembly 2 to facilitate adjustment of the movement direction of the entire device.

[0071] The working principle of the auxiliary installation device for frequency converters provided by this utility model is as follows: Pushing the push rod 9 moves the auxiliary installation device to the frequency converter. The cantilever end 43 of the suspension arm 4 is positioned above the frequency converter, and a suitable number of counterweights 21 are placed on the base 1. The hanging end 72 of the wire rope 7 is brought close to the frequency converter and connected to it via the first wire rope clip 733 and the second wire rope clip 734. After connection, the wire rope 7 is retracted by the winding mechanism 6, lifting the hanging end 72 of the wire rope 7 upwards, thereby suspending the frequency converter. The length of the wire rope 7 is adjusted to adjust the height of the frequency converter. When the frequency converter reaches the predetermined height, the winding mechanism 6 stops retracting the wire rope 7. Pushing the push rod 9 extends the suspension arm 4 into the cabinet, moving the frequency converter horizontally into the cabinet for installation. The process of disassembling the frequency converter is the reverse of the installation process and will not be described here.

[0072] The auxiliary installation device for frequency converters provided by this utility model can lift, move and translate the frequency converter without manual support, and the position adjustment is convenient and quick. It can reduce the workload of operators and improve the efficiency of frequency converter installation and disassembly.

[0073] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An auxiliary installation device for a frequency converter, characterized in that, include: A base, wherein a counterweight assembly is provided on one side of the base; A support frame, which is disposed on the other side of the base; A suspension arm extends along a first direction, with a fixed end and a cantilever end at both ends along the first direction, and the fixed end is connected to the support frame. A pulley block includes a first pulley, a second pulley, and a third pulley. The first pulley is rotatably disposed on the cantilever end, the second pulley is rotatably disposed on the upper end of the support frame, and the third pulley is rotatably disposed on the base, and the third pulley is located between the counterweight assembly and the support frame. A winding mechanism is disposed on the base, and the winding mechanism is located between the counterweight assembly and the third pulley; The wire rope has a coiled end and a hanging end at its two ends. The coiled end is wound up by the winding mechanism. The hanging end passes sequentially around the bottom of the third pulley, the top of the second pulley, and the top of the first pulley before extending downward from the cantilever end. The hanging end is provided with a hook assembly.

2. The auxiliary installation device according to claim 1, characterized in that, The support frame is a rectangular frame structure. Two first reinforcing ribs and two second reinforcing ribs are provided between the support frame and the base. The two first reinforcing ribs are respectively provided on both sides of the support frame along a second direction, which is perpendicular to the first direction. The two second reinforcing ribs are located between the support frame and the winding mechanism.

3. The auxiliary installation device according to claim 2, characterized in that, The suspension arm is a rectangular frame structure, and the suspension arm includes two arms extending along the first direction. Each of the two arms is provided with a third reinforcing rib between itself and the support frame.

4. The auxiliary installation device according to claim 1, characterized in that, It also includes a limiting block connected to the wire rope. The limiting block is located above the hanging end. The limiting block has a hole that passes through the limiting block along the axial direction, and the wire rope passes through the hole.

5. The auxiliary installation device according to claim 4, characterized in that, The limiting block is fixedly connected to the steel wire rope; Alternatively, the limiting block can slide along the wire rope, and an elastic element is provided between the limiting block and the hanging end. The upper end of the elastic element is connected to the limiting block, and the lower end of the elastic element is connected to the hanging end. The elastic element can generate compressive deformation along its extension direction.

6. The auxiliary installation device according to claim 1 or 5, characterized in that, The hook assembly includes a first branch rope, a second branch rope, a first wire rope clip, and a second wire rope clip. One end of both the first branch rope and the second branch rope is connected to the hanging end of the wire rope. The first wire rope clip is located at the other end of the first branch rope, and the second wire rope clip is located at the other end of the second branch rope.

7. The auxiliary installation device according to claim 1, characterized in that, It also includes a push rod, the bottom end of which is connected to the base, and the push rod is located on the side of the counterweight assembly opposite to the support frame.

8. The auxiliary installation device according to claim 1, characterized in that, The counterweight assembly includes multiple cuboid counterweight blocks, each with a handle at both ends.

9. The auxiliary installation device according to claim 8, characterized in that, It also includes four L-shaped limiting members, which are respectively located at the four corners of the counterweight.

10. The auxiliary installation device according to claim 1, characterized in that, The base is provided with four rollers at its bottom, and the four rollers are respectively located at the four corners of the base.