Lifting tool for subway train electrically operated gate

By designing a subway train electric door crane transport worker including multi-angle rotation capability, the existing lifting methods are solved, and efficient, safe lifting and multi-angle rotation of electric doors are achieved.

CN222907395UActive Publication Date: 2025-05-27HUNAN LIANCHENG TRACK EQUIP CO LTD
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Patent Information

Application Number
CN202421992263.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-05-27
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

The existing electric door lifting method of subway trains is inefficient, which increases the labor intensity and safety risks of operators. The lifting equipment lacks flexibility and makes it difficult to achieve multi-angle rotation, which affects the efficiency and safety of lifting the electric door from the storage position to the test bench.

Method used

A lifting worker for electric doors of subway trains is designed, including base, support column, drive mechanism, main cantilever, auxiliary cantilever, wire rope winder, adsorption assembly, etc. The driving mechanism drives the main cantilever and auxiliary cantilever to rotate in multiple angles, and the wire rope winder and adsorption assembly are used to achieve smooth lifting and multi-angle rotation of the electric doors.

Benefits of technology

It improves the lifting efficiency and safety of subway train electric doors, reduces risks during operation, significantly reduces the time and strength of manual operation, and realizes efficient and safe operation of the electric doors from the storage position to the test bench.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a hoisting tool for an electrically operated gate of a subway train, which belongs to the technical field of electrically operated gates of subway trains and comprises a base, a support column arranged on the base, a driving mechanism arranged in the support column, a rotating shaft fixedly connected onto the driving mechanism, a main cantilever fixedly connected onto a mounting disc, and a steel wire rope winder arranged on one side of the main cantilever. A steel wire rope is movably connected into the steel wire rope winder, a limiting mechanism is arranged on the auxiliary cantilever, the steel wire rope is slidably connected into the limiting mechanism, a lifting hook is fixedly connected to the end, away from the limiting mechanism, of the steel wire rope, and an adsorption assembly is detachably connected to the lifting hook. The device can efficiently complete hoisting and position adjustment of the metro train electrically operated gate, time and strength of manual operation are remarkably reduced, multi-angle rotation can be achieved in the hoisting process, and the efficiency of hoisting the metro train electrically operated gate from a storage position to a test bed in the test process is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of subway train electric doors, and specifically relates to a lifting tool for subway train electric doors. Background Technique

[0002] As an important part of the train, the performance of the subway train electric door directly affects the operation safety of the train and the riding experience of passengers. Before the train is put into operation and during maintenance, conducting opening and closing door tests on the electric door is a necessary step to ensure its normal operation. These tests can not only verify the mechanical performance of the electric door and the reliability of the electrical control system, but also detect potential faults in advance and avoid problems during actual operation.

[0003] When conducting the opening and closing door tests on the electric door, it is usually necessary to lift the door from the storage position to the test bench, and then transfer it to the installation position after the test is completed. Due to the complex structure and large weight of the subway train electric door, the current lifting of subway train electric doors mainly relies on manual labor and some simple mechanical auxiliary equipment. These methods include using pulley blocks, brackets and manpower to carry and position the electric door. The pulley block can reduce part of the load by changing the direction of the force, and the bracket can provide certain support. However, these tools have many limitations in operation. For example, they require multiple people to cooperate and have high technical requirements for operators.

[0004] Although the current lifting technology has improved the handling efficiency of subway train electric doors to a certain extent, there are still significant deficiencies. First of all, the methods of manual handling and simple mechanical tools are inefficient, increasing the labor intensity of operators and having relatively high safety risks during operation. In addition, the existing lifting equipment often lacks flexibility and is difficult to achieve multi-angle rotation during lifting, which affects the efficiency and safety of lifting the subway train electric door from the storage position to the test bench and increases the risks during the operation process. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lifting tool for subway train electric doors to solve at least one of the problems and defects mentioned in the above background technique.

[0006] Provide a hoisting tooling for the electric door of a subway train, including a base, a support column is arranged on the base, a driving mechanism is arranged in the support column, a rotating shaft is fixedly connected to the driving mechanism, a mounting disc is fixedly connected to the rotating shaft, a main cantilever is fixedly connected to the mounting disc, a wire rope winder is arranged on one side of the main cantilever, a wire rope is movably connected in the wire rope winder, a sub-cantilever is hinged to the main cantilever, a limiting mechanism is arranged on the sub-cantilever, the wire rope is slidably connected in the limiting mechanism, one end of the wire rope away from the limiting mechanism is fixedly connected to a hook, an adsorption component is detachably connected to the hook, and a storage rack is further arranged on one side of the base;

[0007] Place the electric door to be tested on the storage rack. The driving mechanism drives the rotating shaft to rotate, and then drives the entire main cantilever to rotate to adjust the angle of the main cantilever. The worker adjusts the sub-cantilever to further rotate close to the test electric door stored on the storage rack. The main cantilever and the sub-cantilever rotate at multiple angles, enabling the electric door to be smoothly hoisted from the storage position to the test position, improving the flexibility of the device. The wire rope winder starts to drive the hook to rise and fall electrically, thereby realizing the height position adjustment of the entire adsorption component. The adsorption component is used to adsorb the entire test electric door, realizing the hoisting and adsorption of the entire test electric door, and can realize multi-angle rotation during the hoisting process, improving the efficiency and safety of hoisting the subway train electric door from the storage position to the test bench during the test process, and reducing the risk during the operation process.

[0008] Further, the driving mechanism is a driving motor. The driving motor is arranged in the support column, and the output end of the driving motor is fixedly connected to the rotating shaft. The rotating motion of the output end of the driving motor is directly transmitted to the mounting disc. By starting and adjusting the motor, the rotation of the mounting disc can be realized, thereby adjusting the angle and position of the main cantilever.

[0009] Further, the sub-cantilever includes a first connecting plate, a cantilever body, and a second connecting plate. The first connecting plate is hinged to the main cantilever. A cantilever body is arranged on one side of the first connecting plate away from the main cantilever. A second connecting plate is arranged on one side of the cantilever body away from the first connecting plate. One end of the first connecting plate is connected to the main cantilever by a hinge method to form a rotatable connection point, enabling the sub-cantilever to flexibly adjust its angle to meet different operation requirements. A cantilever body is arranged on one side of the first connecting plate away from the main cantilever. The cantilever body provides the extension and support functions for the entire sub-cantilever. A second connecting plate is arranged on one side of the cantilever body away from the first connecting plate. The second connecting plate is used to install some components of the limiting mechanism, providing additional guidance and control points for the wire rope.

[0010] Furthermore, the limiting mechanism includes two first guide wheels and a second guide wheel. The two first guide wheels are symmetrically arranged on the first connecting plate, and the second guide wheel is arranged on the second connecting plate. The steel wire rope is slidably connected between the two first guide wheels, and the steel wire rope is slidably connected to the second guide wheel. One end of the steel wire rope away from the second guide wheel is fixedly connected with a hook. The steel wire rope is slidably connected between the two first guide wheels, the steel wire rope is slidably connected to the second guide wheel, and one end of the steel wire rope away from the second guide wheel is fixedly connected with a hook. The hook is combined with the adsorption component to achieve firm adsorption and safe handling of the electric door. The first guide wheel and the second guide wheel ensure that the steel wire rope does not deviate from the set path during hoisting through mechanical means, avoiding accidental slipping or winding of the steel wire rope. The sliding connection of the steel wire rope between the guide wheels ensures the force balance and path stability of the steel wire rope during operation.

[0011] Furthermore, the adsorption component includes an adsorption bracket. A number of mounting brackets are detachably connected to the adsorption bracket, and adjusting screws are rotatably connected to the a number of mounting brackets. One end of each adjusting screw away from the mounting bracket is fixedly connected with a vacuum suction cup. The adjusting screw adjusts the height and angle of the vacuum suction cup through its rotation function, enabling the suction cup to closely fit the surface of the electric door to ensure the stability of adsorption. The vacuum suction cup generates a vacuum adsorption force to achieve firm adsorption of the electric door. This adsorption method ensures that the electric door can be stably suspended on the hoisting device during hoisting, avoiding dangerous situations caused by loosening or sliding. The adsorption component is connected to the main cantilever through a hook, and relying on the flexible adjustment of the main cantilever and the auxiliary cantilever, efficient hoisting of the test electric door is achieved.

[0012] Furthermore, each vacuum suction cup is provided with a vacuum pumping port. Each vacuum suction cup is provided with a vacuum pumping port for connecting to a vacuum pump system. The vacuum pumping port extracts air through a vacuum pump to form a negative pressure environment, thereby generating a strong adsorption force. The vacuum pumping port allows the vacuum degree to be adjusted through external control to ensure the best adsorption effect under different surface conditions of the test electric door.

[0013] Furthermore, a vacuum pump is arranged on the adsorption bracket. The vacuum pump is connected to a number of vacuum pumping ports through pipelines. The vacuum pumping port extracts air through the vacuum pump to form a negative pressure environment, thereby generating a strong adsorption force to fix the electric door on the vacuum suction cup. The vacuum pumping port allows the vacuum degree to be adjusted through external control to ensure the best adsorption effect under different surface conditions of the test electric door.

[0014] Furthermore, a number of moving wheels are arranged around the storage rack body, and the a number of moving wheels are slidably connected to the base.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] First, place the electric door to be tested on the storage rack. The driving mechanism drives the rotation of the rotating shaft, and then drives the rotation of the entire main cantilever to adjust the adjustment angle of the main cantilever. The operator adjusts the sub-cantilever to further rotate and approach above the test electric door stored on the storage rack. The main cantilever and the sub-cantilever rotate at multiple angles, enabling the electric door to be smoothly lifted from the storage position to the test position, improving the flexibility of the device. The wire rope winder starts to drive the hook to rise and fall electrically, and then realizes the adjustment of the height position of the entire adsorption assembly. The adsorption assembly adsorbs the entire test electric door to realize the lifting and adsorption of the entire test electric door. Due to the automatic function of the device, the operator only needs to perform a small amount of manual adjustment to complete the lifting task, reducing the risk of errors or accidents during the operation. The use of the adsorption assembly ensures the safe adsorption and handling of the electric door, avoiding the risk of the electric door falling off during the lifting process. This device can efficiently complete the lifting and position adjustment of the subway train electric door, significantly reducing the time and intensity of manual operation, and can realize multi-angle rotation during the lifting process, improving the efficiency and safety of the subway train electric door test process from the storage position to the test bench, and reducing the risk during the operation. Brief Description of the Drawings

[0017] For the convenience of those skilled in the art to understand, the following further describes the present invention in conjunction with the drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a lifting tool for subway train electric doors;

[0019] Figure 2 It is a structural schematic diagram of the limit mechanism provided by an embodiment of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the adsorption assembly provided by an embodiment of the present invention.

[0021] In the figure: 1, base; 2, support column; 3, rotating shaft; 4, mounting plate; 5, main cantilever; 6, wire rope winder; 7, wire rope; 8, sub-cantilever; 81, first connecting plate; 82, cantilever body; 83, second connecting plate; 9, limit mechanism; 91, first guide wheel; 92, second guide wheel; 10, hook; 11, adsorption assembly; 111, adsorption bracket; 112, mounting frame; 113, adjusting screw; 114, vacuum chuck; 1141, vacuum pumping port; 12, storage rack; 121, moving wheel; 13, vacuum pump. Detailed Description of the Embodiment

[0022] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more. Understanding of greater than, less than, exceeding, etc. does not include the present number, and understanding of above, below, within, etc. includes the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0025] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0026] In order to make the purpose, technical solution and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the present utility model claimed, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0028] Please refer to Figures 1-3As shown in the figure, in the embodiment of the present utility model, a lifting tool for an electric door of a subway train includes a base 1. A support column 2 is arranged on the base 1. A driving mechanism is arranged inside the support column 2. A rotating shaft 3 is fixedly connected to the driving mechanism, and the driving mechanism is arranged inside the support column 2. The driving mechanism can be an electric motor or the like to ensure the rotation operation of the electric door during lifting. The rotating shaft 3 is driven to rotate by the driving mechanism. The rotation of the rotating shaft 3 enables the mounting plate 4 to make corresponding angle adjustments, so that the entire lifting device has the operation ability at multiple angles during work. A mounting plate 4 is fixedly connected to the rotating shaft 3. A main cantilever 5 is fixedly connected to the mounting plate 4. A wire rope winder 6 is arranged on one side of the main cantilever 5. A wire rope 7 is movably connected inside the wire rope winder 6. A secondary cantilever 8 is hinged on the main cantilever 5. A limiting mechanism 9 is arranged on the secondary cantilever 8. The limiting mechanism 9 is used to limit the sliding range of the wire rope 7 to ensure the stability and safety during lifting, and prevent the wire rope 7 from accidentally deviating or slipping during work. The wire rope 7 is slidably connected inside the limiting mechanism 9. One end of the wire rope 7 far from the limiting mechanism 9 is fixedly connected to a hook 10. The wire rope winder 6 can control the length of the wire rope 7, and adjust the lifting height by winding and releasing the wire rope 7. The wire rope 7 is wound and released electrically in the wire rope winder 6, and can control the rising and falling of the hook 10 according to needs, and further control the height position of the test electric door adsorbed on the adsorption assembly 11. An adsorption assembly 11 is detachably connected to the hook 10. A storage rack 12 is also arranged on one side of the base 1. The storage rack 12 is used to store the test electric door;

[0029] First, place the electric door to be tested on the storage rack 12. The driving mechanism drives the rotation of the rotating shaft 3, which in turn drives the rotation of the mounting disk 4, and further drives the rotation of the entire main cantilever 5 to adjust the angle of the main cantilever 5. The operator adjusts the further rotation of the auxiliary cantilever 8 to approach above the test electric door stored on the storage rack 12. The main cantilever 5 and the auxiliary cantilever 8 rotate at multiple angles, enabling the electric door to be smoothly lifted from the storage position to the test position. This multi-angle rotation function improves the flexibility of the device. The wire rope winder 6 is activated to drive the lifting and lowering of the hook 10 electrically. The limiting mechanism 9 is used to limit the sliding range of the wire rope 7, ensuring the stability and safety during the lifting process, preventing the wire rope 7 from accidentally deviating or slipping during operation, and thus realizing the adjustment of the height position of the entire adsorption assembly 11. The adsorption assembly 11 adsorbs the entire test electric door to realize the lifting and adsorption of the entire test electric door. Due to the automation function of the device, the operator only needs to perform a small amount of manual adjustment to complete the lifting task, which reduces the risk of errors or accidents during the operation. At the same time, the use of the adsorption assembly 11 ensures the safe adsorption and handling of the electric door, avoiding the risk of the electric door falling off during the lifting process. This tooling is compactly designed and can be operated in a narrow space such as a subway workshop, avoiding the inconvenience of operation and space limitation brought by large lifting equipment. This device can efficiently complete the lifting and position adjustment of the subway train electric door, significantly reducing the time and intensity of manual operation, and can achieve multi-angle rotation during the lifting process, improving the efficiency and safety of the subway train electric door test process from the storage position to the test bench, and reducing the risk during the operation.

[0030] In one embodiment, refer to Figure 1 、 Figure 2 and Figure 3 As shown, the driving mechanism is a driving motor. The driving motor is arranged inside the support column 2. The output end of the driving motor is fixedly connected to the rotating shaft 3. The driving motor is installed inside the support column 2 to provide rotational power to control the operation of the entire device. Arranging the driving motor inside the support column 2 helps protect the motor from the external environment, simplifies the structure of the device, and saves space. The output end of the driving motor is fixedly connected to the mounting disk 4, and its rotational movement is directly transmitted to the mounting disk 4. By starting and adjusting the driving motor, the rotation of the mounting disk 4 can be achieved, thereby adjusting the angle and position of the main cantilever 5.

[0031] In one embodiment, refer to Figure 1 、 Figure 2 and Figure 3As shown, the auxiliary cantilever 8 includes a first connecting plate 81, a cantilever body 82, and a second connecting plate 83. The first connecting plate 81 is hinged to the main cantilever 5. One end of the first connecting plate 81 is connected to the main cantilever 5 by a hinged manner, forming a rotatable connection point, enabling the auxiliary cantilever 8 to flexibly adjust its angle to adapt to different operation requirements. On the side of the first connecting plate 81 away from the main cantilever 5, there is a cantilever body 82, which provides the extension and support functions for the entire auxiliary cantilever 8. On the side of the cantilever body 82 away from the first connecting plate 81, there is a second connecting plate 83, which is used to install some components of the limiting mechanism 9, providing additional guidance and control points for the steel wire rope 7.

[0032] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 As shown, the limiting mechanism 9 includes two first guide wheels 91 and a second guide wheel 92. The two first guide wheels 91 are symmetrically arranged on the first connecting plate 81 to guide the steel wire rope 7 to slide at the initial end of the auxiliary cantilever 8. The second guide wheel 92 is arranged on the second connecting plate 83 to provide further guidance for the steel wire rope 7, enabling the steel wire rope 7 to be smoothly connected to the hook 10. The steel wire rope 7 is slidably connected between the two first guide wheels 91 and slidably connected to the second guide wheel 92. One end of the steel wire rope 7 away from the second guide wheel 92 is fixedly connected to the hook 10. The hook 10 is combined with the adsorption assembly 11 to achieve the firm adsorption and safe handling of the electric door. The first guide wheel 91 and the second guide wheel 92 ensure that the steel wire rope 7 does not deviate from the set path during the hoisting process through mechanical means, avoiding accidental slipping or winding of the steel wire rope 7. The sliding connection of the steel wire rope 7 between the first guide wheel 91 and the second guide wheel 92 ensures the force balance and path stability of the steel wire rope 7 during operation, avoiding unstable phenomena during hoisting. The combination of the hook 10 and the adsorption assembly 11 provides a safe and stable way to handle the electric door. The height adjustment of the steel wire rope 7 and the stable connection of the hook 10 enable the electric door to be smoothly transported from the storage position to the test bench, reducing the human operation risk during hoisting.

[0033] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3As shown, the adsorption assembly 11 includes an adsorption bracket 111. A number of mounting brackets 112 are detachably connected to the adsorption bracket 111. An adjusting screw 113 is rotatably connected to each of the number of mounting brackets 112. A vacuum suction cup 114 is fixedly connected to one end of the adjusting screw 113 away from the mounting bracket 112. The adsorption bracket 111 is the core support structure of the adsorption assembly 11, responsible for installing and fixing other components of the entire adsorption device. It is connected to the hook 10 through a certain connection method, enabling the entire adsorption assembly 11 to be suspended on the lifting device. The number of mounting brackets 112 are connected to the adsorption bracket 111 in a detachable manner. The adjusting screw 113 adjusts the height and angle of the vacuum suction cup 114 through its rotation function, enabling the vacuum suction cup 114 to closely fit the surface of the electric door, ensuring the stability of adsorption. The vacuum suction cup 114 generates a vacuum adsorption force to achieve a firm adsorption of the electric door. This adsorption method ensures that the electric door can be stably suspended on the lifting device during the lifting process, avoiding dangerous situations caused by loosening or sliding. The adsorption assembly 11 is connected to the auxiliary cantilever 8 through the hook 10, and relies on the flexible adjustment of the main cantilever 5 and the auxiliary cantilever 8 to achieve efficient lifting of the test electric door. The adsorption assembly 11 relies on the limiting mechanism 9 to guide the path of the steel wire rope 7 during the lifting process, maintaining the stability and accuracy of the entire operation process. Rotate the adjusting screw 113 on the mounting bracket 112 to adjust the position and height of the vacuum suction cup 114, so that it fits the surface of the test electric door for adsorption.

[0034] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 As shown, a vacuum pumping port 1141 is provided on each of the vacuum suction cups 114. The vacuum suction cup 114 is in direct contact with the surface of the electric door. By generating a vacuum suction force, the electric door is firmly adsorbed on the vacuum suction cup 114, preventing the electric door from loosening or falling off during the lifting process. Each vacuum suction cup 114 is provided with a vacuum pumping port 1141 for connecting to the vacuum pump 13. The vacuum pumping port 1141 extracts air through the vacuum pump 13 to form a negative pressure environment, thereby generating a strong adsorption force to fix the electric door on the vacuum suction cup 114. The vacuum pumping port 1141 allows the vacuum degree to be adjusted through external control to ensure the best adsorption effect under different surface conditions of the test electric door.

[0035] In one embodiment, please refer to Figure 1 and Figure 3 As shown, a vacuum pump 13 is provided on the adsorption bracket 111. The vacuum pump 13 is connected to a number of vacuum pumping ports 1141 through pipelines. The vacuum suction cup 114 is connected to the vacuum pump 13 through the vacuum pumping port 1141, and uses the negative pressure suction provided by the vacuum pump 13 to firmly adsorb the electric door on the vacuum suction cup 114.

[0036] In one embodiment, refer to Figure 1 and Figure 3 As shown, a number of moving wheels 121 are provided around the storage rack body 12, and the number of moving wheels 121 are slidably connected to the base 1. A number of moving wheels 121 are provided around the storage rack body 12, and these moving wheels 121 are slidably connected to the base 1, enabling the storage rack body 12 to slide freely, realizing the flexible transfer of the electric door. The design of the moving wheels 121 allows the storage rack body 12 to slide smoothly on the base 1, reducing the burden of manually carrying and testing the electric door, and improving the overall operation efficiency and flexibility.

[0037] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A lifting tool for electric doors of subway trains, comprising a base (1), characterized in that: The base (1) is provided with a support column (2), a driving mechanism is provided in the support column (2), a rotating shaft (3) is fixedly connected to the driving mechanism, a mounting plate (4) is fixedly connected to the rotating shaft (3), a main cantilever (5) is fixedly connected to the mounting plate (4), a wire rope reel (6) is provided on one side of the main cantilever (5), a wire rope (7) is movably connected in the wire rope reel (6), a secondary cantilever (8) is hinged on the main cantilever (5), a limiting mechanism (9) is provided on the secondary cantilever (8), the wire rope (7) is slidably connected in the limiting mechanism (9), a hook (10) is fixedly connected to one end of the wire rope (7) away from the limiting mechanism (9), an adsorption component (11) is detachably connected to the hook (10), and a storage frame (12) is also provided on one side of the base (1).

2. The lifting tool for electric doors of subway trains according to claim 1, characterized in that: The driving mechanism is a driving motor, which is arranged in the support column (2), and the output end of the driving motor is fixedly connected to a rotating shaft (3).

3. The lifting tool for electric door of subway train according to claim 1, characterized in that: The auxiliary cantilever (8) comprises a first connecting plate (81), a cantilever body (82) and a second connecting plate (83); the first connecting plate (81) is hinged to the main cantilever (5); the cantilever body (82) is arranged on a side of the first connecting plate (81) away from the main cantilever (5); and the second connecting plate (83) is arranged on a side of the cantilever body (82) away from the first connecting plate (81).

4. The lifting tool for electric door of subway train according to claim 3, characterized in that: The limiting mechanism (9) comprises two first guide wheels (91) and a second guide wheel (92), the two first guide wheels (91) are symmetrically arranged on the first connecting plate (81), the second guide wheel (92) is arranged on the second connecting plate (83), the steel wire rope (7) is slidably connected between the two first guide wheels (91), the steel wire rope (7) is slidably connected to the second guide wheel (92), and the end of the steel wire rope (7) away from the second guide wheel (92) is fixedly connected to a hook (10).

5. The lifting tool for electric door of subway train according to claim 1, characterized in that: The adsorption assembly (11) comprises an adsorption bracket (111), the adsorption bracket (111) is detachably connected to the hook (10), a plurality of mounting frames (112) are detachably connected to the adsorption bracket (111), the plurality of mounting frames (112) are rotatably connected to an adjusting screw (113), and one end of the adjusting screw (113) away from the mounting frame (112) is fixedly connected to a vacuum suction cup (114).

6. The lifting tool for electric door of subway train according to claim 5, characterized in that: The vacuum suction cups (114) are each provided with a vacuum extraction port (1141).

7. The lifting tool for electric door of subway train according to claim 6, characterized in that: The adsorption bracket (111) is provided with a vacuum pump (13), and the vacuum pump (13) is connected to a plurality of vacuum ports (1141) via pipelines.

8. The lifting tool for electric door of subway train according to claim 1, characterized in that: A plurality of moving wheels (121) are arranged around the storage frame (12), and the plurality of moving wheels (121) are slidably connected to the base (1).