Lifting protection platform for decoration synchronous operation

Abstract

The utility model discloses a lifting protection platform for decoration synchronous operation, and relates to the technical field of protection equipment, the platform comprises a stand column I, a stand column II, a lifting frame, a fixed frame and a telescopic frame which are made of high-strength section bars, and the height is flexibly adjusted through a lifting motor, a steel rope, a fixed air cylinder and the like; a motor and a gear transmission structure are arranged, and the rotating ring, the fixing frame, the telescopic frame and the operation box can be driven to rotate around the first stand column at multiple angles; meanwhile, horizontal sliding of the operation box is controlled through the telescopic air cylinder, accurate operation fine adjustment is achieved, operation safety is guaranteed through upper limiting of the lifting frame, free arrangement of a piston rod of the fixed air cylinder and stroke control of the telescopic air cylinder, in addition, protection plates are installed on the periphery and the bottom of the operation box, and the top is open, so that objects are convenient to store and take and prevented from falling off; and after the platform is used, all the components can be disassembled and folded for storage, and transportation and storage are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, in particular to a lifting protective platform for synchronous decoration operations. Background Art

[0002] In high-altitude decoration operations, the stability and safety of the construction platform are the main needs of construction workers. The existing protection platform design mainly focuses on lifting or horizontal movement functions, but when dealing with multi-angle and all-round decoration tasks, the flexibility and safety of existing technologies are still insufficient.

[0003] For example, Chinese invention patent CN115095122B discloses a mobile protective platform for indoor decoration operations, which realizes automatic lifting and horizontal movement of the platform through a protective cage and motor wheels installed on a supporting chassis. This design provides high mobility and certain safety protection functions during the indoor decoration process, and can prevent people from falling due to unstable center of gravity when working at heights. However, since its main protective structure is a protective cage, it is suitable for scenarios that require stable support, but its functions are limited when flexible operations at multiple angles, different heights and complex environments are required. For example, in decoration tasks at specific heights and angles, it cannot provide precise horizontal fine-tuning and multi-angle rotation functions, which limits the applicable scenarios of the platform. At the same time, the design of its protective cage is relatively bulky and difficult to disassemble and assemble conveniently, which limits the flexibility of transportation and storage.

[0004] In addition, Chinese invention patent CN108915229B discloses a multifunctional decoration construction frame, which realizes material support and lifting functions through a scissor-type lifting platform and a transmission system, and adopts protective fences and locking mechanisms to enhance construction safety. This design has good support and protection effects for ceiling and suspended ceiling operations, but has shortcomings in the adjustment range and operational flexibility of the platform. Its scissor-type lifting structure makes it difficult to achieve horizontal and rotational fine-tuning, and lacks a convenient limiting function. It has poor stability during high-frequency lifting or complex multi-angle operations. In addition, this type of construction frame has a relatively complex structure and is not suitable for construction scenarios that require frequent movement or storage, which increases the cost of use and subsequent maintenance costs. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a lifting protection platform for synchronous decoration operations to solve the above-mentioned problems.

[0006] The purpose of the utility model is achieved through the following technical solutions: a lifting and protection platform for synchronous decoration operations, including column one, the top of column one is rotatably connected to column two through a connecting piece, the top of column two is fixedly connected to a fixed cylinder, the outer end of column one is slidably connected to a lifting frame, the outer end of the lifting frame is fixedly connected to an upper fixed ring and a lower fixed ring symmetrically arranged up and down, a swivel is rotatably connected between the upper fixed ring and the lower fixed ring, the outer end of the swivel is fixedly connected to the fixed frame, the top of the fixed frame is slidably connected to a telescopic frame, the top of the telescopic frame is fixedly connected to an operation box, the outer end of the upper fixed ring is fixedly connected to gear one, the outer end of gear one is meshed with gear two in the direction away from the operation box, the outer end of the swivel is fixedly connected to a motor at the corresponding position of gear two, and the power shaft of the motor is fixedly connected to gear two.

[0007] The platform is equipped with a motor-driven rotating structure, which realizes full-range rotation around the column through a gear transmission system. It is suitable for working scenarios that require frequent changes in angles, and improves the flexibility of construction operations.

[0008] The horizontal fine-tuning function and the combination of the telescopic cylinder and the telescopic frame enable the work box to slide and adjust in the horizontal direction, facilitating precise work positioning in a specific area and expanding the applicability of the platform.

[0009] Multiple limit protections: The platform is designed with upper limit protection for the lifting frame and travel control for the telescopic cylinder to ensure safety and stability during operation. These limit designs effectively prevent the work box from exceeding the platform's safety range, improving the safety factor of high-altitude operations.

[0010] Easy disassembly and storage: the platform components can be disassembled and stored in the work box. The columns are designed as a foldable structure, which facilitates the transportation and storage of the platform, meets the mobility requirements of the construction site, and reduces transportation and storage costs.

[0011] The top of the lifting frame is fixedly connected with a lifting frame, and the top of the lifting frame is provided with a lifting motor, which is an outer rotor reduction motor, and the stator of the lifting motor is fixedly connected with the lifting frame.

[0012] A steel rope is wound around the outer end of the lifting motor, and the steel rope extends upward to the bottom end of the fixed cylinder and is fixedly connected to the bottom end of the fixed cylinder.

[0013] A through hole is opened in the center of the connecting piece, and the steel rope passes through the through hole of the connecting piece. A retaining ring made of wear-resistant material is fixedly connected to the edge of the through hole of the connecting piece.

[0014] A telescopic cylinder is fixedly connected between the fixed frame and the telescopic frame. The telescopic cylinder body is fixedly connected to one end of the fixed frame close to the swivel, and the piston rod is fixedly connected to the end of the telescopic frame away from the swivel.

[0015] The lifting frame is fixedly connected to the lifting frame through bolts, the cylinder body part of the fixed cylinder is fixedly connected to the connecting piece, and the piston rod part is freely arranged upward.

[0016] The first column, the second column, the lifting frame, the fixed frame and the telescopic frame are all made of profiles, and the working box is fixed with protective plates around and on the bottom, and the top opening is set.

[0017] The stroke of the telescopic cylinder is half the length of the fixed frame. The lifting frame is slidingly connected to the first column. When the top of the lifting frame rises to contact with the connecting piece, it reaches the upper limit position. At this time, the work box also reaches the upper limit position. The maximum height of the top of the second column is 1.8 meters from the bottom of the work box after the work box reaches the upper limit position.

[0018] The beneficial effects of the utility model are:

[0019] 1. Strong structural stability. The core structure of the platform, including column 1, column 2, lifting frame, fixed frame and telescopic frame, are made of high-strength profiles to ensure that the platform maintains sufficient rigidity and stability during operations at different heights and directions. Even during high-frequency lifting, rotation or horizontal movement, it can maintain good compression and bending resistance, extending the service life of the platform.

[0020] 2. Flexible lifting and adapting to various working heights. The lifting motor drives the steel rope to realize the up and down movement of the lifting frame, which can be easily adjusted to meet the needs of different decoration operations. At the same time, the sliding connection between the lifting frame and the column and the flexible setting of the fixed cylinder make the platform have multi-layer limit protection during height adjustment, ensuring the safety and stability of operation.

[0021] 3. Multi-angle rotation: the motor drives the swivel, fixed frame, telescopic frame and work box to rotate around the column through the gear transmission structure. Through this rotation function, the operator can freely adjust the direction of the work box without moving the platform. It is particularly suitable for construction tasks that require processing at different angles, greatly improving work efficiency and flexibility.

[0022] 4. Horizontal fine-tuning improves operational accuracy. The telescopic cylinder is installed between the fixed frame and the telescopic frame, which can realize the horizontal sliding of the work box, so that the platform can adapt to irregular working spaces and complex construction environments. This horizontal fine-tuning function increases the coverage of the platform, reduces the need to reposition the platform, and makes operation more precise and convenient.

[0023] 5. Limit protection ensures safe operation. The upper limit is reached when the top of the lifting frame rises to contact with the connecting piece, ensuring that the lifting frame will not exceed the designed height. At the same time, the piston rod of the fixed cylinder can be freely set during operation, providing an additional limit function. In addition, the stroke of the telescopic cylinder is set to half the length of the fixed frame, which effectively controls the range of horizontal movement and avoids safety hazards caused by misoperation.

[0024] 6. The work box protection design improves safety. Protective plates are installed around and on the bottom of the work box. The top opening design facilitates the storage and access of tools and materials. The protective plates can effectively prevent objects that may fall during construction, ensuring the safety of operators and the surrounding environment. It is especially suitable for use indoors or at high altitude environments, further improving the safety of the platform.

[0025] 7. Easy to fold and store, easy to transport. After use, the various components of the platform can be disassembled and placed in the work box for easy handling and storage. Column one and column two are connected by the rotation of the connecting piece, which can be easily folded and stored, simplifying the transportation process and facilitating storage in a small space, thereby improving the convenience of using the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the overall structural diagram of the utility model;

[0027] Figure 2 This is a diagram of the use state of the utility model;

[0028] Figure 3 It is an overall exploded view of the utility model;

[0029] Figure 4 It is a partial exploded view of the utility model;

[0030] Figure 5 This is a diagram of the folded state of the pillar 1 and the pillar 2 of the present invention;

[0031] Figure 6 It is a front view of the utility model;

[0032] Figure 7 For the utility model Figure 6 Middle AA section view;

[0033] Figure 8 This is the appearance structure diagram of the utility model.

[0034] Description of the numbers in the figure

[0035] 1. Column 1; 2. Connector; 3. Column 2; 4. Fixed cylinder; 5. Lifting frame; 6. Upper fixing ring; 7. Lower fixing ring; 8. Swivel; 9. Fixed frame; 10. Telescopic frame; 11. Working box; 12. Gear 1; 13. Gear 2; 14. Motor; 15. Lifting frame; 16. Lifting motor; 17. Steel rope; 18. Retaining ring; 19. Telescopic cylinder. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] It is to be noted that the directions of "left", "right", "up", "down", "front", "back", "inside" and "outside" in the following schemes are all relative directions and are not listed here one by one.

[0038] Example 1

[0039] like Figures 1 to 8 As shown, this embodiment provides a lifting and protection platform suitable for synchronous decoration operations, which aims to solve the problems of inconvenient position adjustment and poor construction safety during the use of traditional platforms. The platform includes multiple components, which realize safe, convenient and flexible operations through collaborative operation.

[0040] Column 1 is the main supporting component of the platform.

[0041] The second column 3 is rotatably connected to the first column 1 through the connecting piece 2 and can be folded for easy storage and unfolding operations.

[0042] The fixed cylinder 4 is fixedly installed on the top of the column 2 3 and is mainly used to adjust the contact between the platform and the ceiling or the top support to achieve stable fixation of the platform.

[0043] The lifting frame 5 is slidably connected to the outer end of the column 1 and is combined with the height adjustment system of the platform through the lifting frame 15.

[0044] The upper fixing ring 6 and the lower fixing ring 7 are symmetrically mounted on the outer end of the lifting frame 5 to ensure that the lifting frame 5 is firmly connected during operation.

[0045] The swivel 8 is installed between the upper fixed ring 6 and the lower fixed ring 7 and has a rotation function to realize the rotation positioning of the platform.

[0046] The fixing frame 9 is fixedly connected via the swivel 8 to achieve the function of fixed support.

[0047] The telescopic frame 10 is slidably connected to the top of the fixed frame 9 to provide a horizontal movement function for the work box 11.

[0048] The operation box 11 is installed on the top of the telescopic frame 10 and is used to store or protect tools and materials required for the operation.

[0049] Gear 1 12 and gear 2 13 are mounted on the outer end of the upper fixing ring 6 and are connected by meshing to realize the rotation transmission function of the platform.

[0050] The motor 14 is mounted on the rotating ring 8 and drives the platform to rotate through the engagement of the gear 2 13 with the gear 1 12.

[0051] The lifting frame 15 is fixedly connected to the top of the lifting frame 5 and is installed with a lifting motor 16 to achieve the platform height adjustment function.

[0052] The lifting motor 16 is an outer rotor reduction motor, which drives the fixed cylinder 4 through the steel rope 17 to achieve lifting movement.

[0053] The steel rope 17 is connected to the lifting motor 16 and passes upward through the connecting piece 2 to be fixed to the bottom end of the fixed cylinder 4.

[0054] The retaining ring 18 is made of wear-resistant material and is installed on the edge of the through hole of the connecting piece 2 to prevent the steel rope 17 from being worn.

[0055] The telescopic cylinder 19 is fixedly connected between the fixed frame 9 and the telescopic frame 10 and is used for adjusting the horizontal movement of the telescopic frame 10.

[0056] Working process

[0057] To build and unfold the platform, first slide the lifting frame 5 to the outer end of the column 1 and fix the lifting frame 15 to the lifting frame 5 with bolts. Then, pass the steel rope 17 through the through hole of the connecting piece 2 and fix it to the bottom end of the fixed cylinder 4.

[0058] Adjust the platform height and start the lifting motor 16. Wind the steel rope 17 through the lifting motor 16. The steel rope 17 drives the fixed cylinder 4 and the connecting part 2 to rotate, and finally aligns the column 2 3 with the column 1 1 and forms a straight line. Continue to operate the lifting motor 16, lift the steel rope 17, and drive the lifting frame 5 to rise along the column 1 until it reaches the required height.

[0059] Rotation adjustment: When the position of the work box 11 needs to be adjusted, start the motor 14. The motor 14 drives the gear 2 13 through the power shaft and engages with the gear 1 12, so that the swivel 8, the fixed frame 9, the telescopic frame 10 and the work box 11 rotate around the column 1, so as to achieve the precise positioning of the work box 11.

[0060] Horizontal movement: the telescopic frame 10 is pushed to slide on the top of the fixed frame 9 by the telescopic cylinder 19, so that the work box 11 can be fine-tuned in the horizontal direction to cover a larger working area.

[0061] After storage and disassembly, the lifting motor 16 is used to reversely wind the steel rope 17 so that the column 2 3 and the column 1 1 are folded to their original positions, and the folding and storage of the columns are achieved by rotating the connecting piece 2. In addition, the various components are disassembled and placed in the work box 11 for easy transportation and storage.

[0062] The first column 1 and the second column 3 are connected by the rotation of the connecting member 2 to realize folding and unfolding, which not only ensures the stability of the structure but also facilitates operation and storage.

[0063] The lifting motor 16 drives the steel rope 17 to move the lifting frame 5 up and down, so that the platform can operate at different heights and adapt to various decoration scenes.

[0064] The motor 14 drives the meshing connection of the gear 2 13 and the gear 1 12, so that the swivel 8 can rotate flexibly, realizing the rotation positioning of the working box 11, which is easy to operate and suitable for multi-angle operation.

[0065] The telescopic cylinder 19 connects the fixed frame 9 and the telescopic frame 10 to achieve horizontal movement adjustment of the work box 11 to meet more precise operation requirements.

[0066] The edge of the through hole of the connector 2 is equipped with a wear-resistant retaining ring 18, which effectively extends the service life of the steel rope 17 and ensures the stability of the platform during high-frequency operations.

[0067] This embodiment ensures the operational flexibility, durability and adaptability of the platform through modular design, meeting the synchronous operation requirements in various decoration scenarios.

[0068] Example 2

[0069] like Figures 1 to 8 As shown, based on Example 1, this embodiment further optimizes the structure and function of the platform, adds functions such as horizontal movement, material selection and limit protection, ensures the flexibility, durability and safety of the platform during use, and is suitable for multi-functional applications in complex decoration environments.

[0070] The first column 1, the second column 3, the lifting frame 5, the fixed frame 9, and the telescopic frame 10 are all made of profiles to improve the overall rigidity and durability of the platform and ensure stability during operations at different heights and directions.

[0071] The operation box 11 is provided with protective plates on the four sides and the bottom, and an opening design is provided on the top for storing and protecting items, thereby improving safety during operation.

[0072] The telescopic cylinder 19 is installed between the fixed frame 9 and the telescopic frame 10, and is used to control the horizontal sliding of the telescopic frame 10 to achieve horizontal adjustment of the work box 11. The cylinder body is fixed to one end of the fixed frame 9 close to the swivel 8, and the piston rod is fixed to one end of the telescopic frame 10 away from the swivel 8.

[0073] The lifting frame 15 and the fixed cylinder 4 are fixedly connected to the lifting frame 5 by bolts. The lifting frame 15 is slidably connected to the column 1. When the top end of the lifting frame 15 rises to contact with the connecting piece 2, it reaches the upper limit position. The piston rod part of the fixed cylinder 4 is freely set upward to achieve the highest limit protection of the platform.

[0074] The stroke limit design sets the stroke of the telescopic cylinder 19 to half the length of the fixed frame 9 to ensure that the telescopic frame 10 does not exceed the safety range; when the work box 11 reaches the highest position, the height between the top of the column 2 3 and the bottom of the work box 11 is 1.8 meters.

[0075] Working process

[0076] Basic operation, based on Example 1, the platform is first adjusted to the required working height and angle according to basic steps such as lifting and rotating. Column 1 1, column 2 3, lifting frame 5, etc. are all made of profiles, providing stronger pressure and bending resistance during operation.

[0077] Horizontal adjustment: When the position of the work box 11 needs to be fine-tuned, the telescopic cylinder 19 slides the telescopic frame 10 horizontally along the top of the fixed frame 9, thereby pushing the work box 11 to fine-tune in the horizontal direction. This process is mainly used to ensure that the work box 11 can cover a larger area in a limited space, while improving the accuracy and convenience of construction.

[0078] Limitation and protection: The upper limit setting of the lifting frame 15 is achieved by the contact between its top and the connecting piece 2 to prevent the work box 11 from exceeding the safe height. In addition, the piston rod of the fixed cylinder 4 extends upward freely during operation, providing multiple limit protections to ensure that the work box 11 will not exceed the platform design height during the lifting process. The stroke of the telescopic cylinder 19 is controlled at half the length of the fixed frame 9 to ensure that the range of horizontal movement is safe and controllable.

[0079] Protective design: protective plates are installed around and on the bottom of the work box 11. The top opening facilitates the access and safe storage of tools and materials. During the movement and rotation of the platform, the protective plates can effectively prevent debris or other objects from falling, ensuring the safety of the operator and the surrounding environment.

[0080] When in use, the lifting frame 5 is placed on the outer end of the column 1, and the lifting frame 15 is fixedly connected to the lifting frame 5 by bolts. Then, the steel rope 17 is passed through the connecting piece 2 and fixedly connected to the bottom end of the fixed cylinder 4;

[0081] Then, the lifting motor 16 pulls the steel rope 17, which drives the fixing cylinder 4 and the connecting piece 2 to rotate around the connecting piece 2 until the bottom end of the second column 3 abuts against the top end of the first column 1. At this time, the first column 1 and the second column 3 are in the same straight line. Then, the piston rod of the fixing cylinder 4 is moved upward to abut against the ceiling, and the fixing of the first column 1 and the second column 3 is completed.

[0082] After that, it can be put into use. During use, the lifting motor 16 is used to wind the steel rope 17, which drives the lifting frame 5, the upper fixed ring 6, the lower fixed ring 7, the swivel 8, the fixed frame 9, the telescopic frame 10 and the work box 11 to move up and down. At the same time, the telescopic cylinder 19 pushes the telescopic frame 10 to slide on the top of the fixed frame 9, so that the work box 11 can slide in the horizontal direction. At the same time, the motor 14, the gear 2 13 and the gear 1 12 cooperate to make the swivel 8, the fixed frame 9, the telescopic frame 10 and the work box 11 rotate around the column 1.

[0083] By lifting, translating and rotating the work box 11, work protection can be provided in a larger range;

[0084] Especially in the process of working near the window, the working box 11 can be extended out of the window to work without having to descend from the roof to the corresponding window, which is simple to use;

[0085] After use, the components can be disassembled and placed in the work box 11 for easy transportation. The column 1 and the column 2 3 can be rotated around the connecting piece 2 to achieve folding and storage. When unfolding, the column 1 and the column 2 3 can be automatically unfolded by winding the steel rope 17 by the lifting motor 16.

[0086] Column 1 1 , column 2 3 , lifting frame 5 , fixed frame 9 and telescopic frame 10 are all made of high-strength profiles, which improves the durability of the platform in complex working environments and ensures that it maintains good stability after multiple operations.

[0087] The horizontal fine-tuning function, the cooperation of the telescopic cylinder 19 and the telescopic frame 10, realizes the horizontal adjustment of the working box 11, enables the platform to adapt to irregular working space, expands the working coverage, and improves operational flexibility.

[0088] Limit protection, the sliding connection between the lifting frame 15 and the column 1, the free setting of the piston rod of the fixed cylinder 4 and the limit stroke design of the telescopic cylinder 19 ensure the safety of the platform during lifting, horizontal sliding and rotation, and effectively prevent the risk of over-limit caused by misoperation.

[0089] Safety protection: The installation of a protective plate on the work box 11 prevents the risk of falling during construction, helps to improve the overall safety of the platform, and is particularly suitable for scenarios requiring precise operations in indoor or high-altitude environments.

[0090] This embodiment significantly enhances the safety and reliability of the platform through position limiting and protection designs on the basis of achieving multi-directional and multi-angle operations, and is suitable for a variety of complex construction environments indoors and outdoors.

[0091] The above description is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be regarded as excluding other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or technology or knowledge in related fields. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A lifting and protection platform for synchronous decoration work, characterized in that: The invention comprises a column (1), wherein the top of the column (1) is rotatably connected to the column (3) via a connecting piece (2), the top of the column (3) is fixedly connected to a fixed cylinder (4), the outer end of the column (1) is slidably connected to a lifting frame (5), the outer end of the lifting frame (5) is fixedly connected to an upper fixed ring (6) and a lower fixed ring (7) symmetrically arranged above and below, a rotating ring (8) is rotatably connected between the upper fixed ring (6) and the lower fixed ring (7), and the outer end of the rotating ring (8) is fixedly connected to a fixed The top of the fixed frame (9) is slidably connected to a telescopic frame (10), the top of the telescopic frame (10) is fixedly connected to an operation box (11), the outer end of the upper fixed ring (6) is fixedly connected to a gear 1 (12), the outer end of the gear 1 (12) is meshedly connected to a gear 2 (13) in a direction away from the operation box (11), the outer end of the rotating ring (8) is fixedly connected to a motor (14) at a position corresponding to the gear 2 (13), and the power shaft of the motor (14) is fixedly connected to the gear 2 (13).

2. The lifting and protecting platform for synchronous decoration work according to claim 1 is characterized in that: The top of the lifting frame (5) is fixedly connected to a lifting frame (15), and the top of the lifting frame (15) is provided with a lifting motor (16). The lifting motor (16) is an outer rotor reduction motor, and the stator of the lifting motor (16) is fixedly connected to the lifting frame (15).

3. The lifting and protecting platform for synchronous decoration work according to claim 2 is characterized in that: A steel rope (17) is wound around the outer end of the lifting motor (16), and the steel rope (17) extends upward to the bottom end of the fixed cylinder (4) and is fixedly connected to the bottom end of the fixed cylinder (4).

4. The lifting and protecting platform for synchronous decoration work according to claim 3 is characterized in that: A through hole is provided in the center of the connecting member (2), and the steel rope (17) passes through the through hole of the connecting member (2). A retaining ring (18) made of a wear-resistant material is fixedly connected to the edge of the through hole of the connecting member (2).

5. The lifting and protecting platform for synchronous decoration work according to claim 2 is characterized in that: A telescopic cylinder (19) is fixedly connected between the fixed frame (9) and the telescopic frame (10); a cylinder body portion of the telescopic cylinder (19) is fixedly connected to an end of the fixed frame (9) close to the swivel (8), and a piston rod portion is fixedly connected to an end of the telescopic frame (10) away from the swivel (8).

6. The lifting and protecting platform for synchronous decoration work according to claim 2 is characterized in that: The lifting frame (15) is fixedly connected to the lifting frame (5) via bolts, the cylinder body of the fixed cylinder (4) is fixedly connected to the connecting piece (2), and the piston rod portion is freely arranged upward.

7. The lifting and protecting platform for synchronous decoration work according to claim 1 is characterized in that: The first column (1), the second column (3), the lifting frame (5), the fixed frame (9) and the telescopic frame (10) are all made of profiles, and the operation box (11) is fixed with protective plates on the four sides and the bottom, and the top opening is set.

8. The lifting and protecting platform for synchronous decoration work according to claim 5 is characterized in that: The travel of the telescopic cylinder (19) is half the length of the fixed frame (9). The lifting frame (15) is slidably connected to the column one (1). When the top end of the lifting frame (15) rises to contact with the connecting piece (2), it reaches the upper limit position. At this time, the work box (11) also reaches the upper limit position. The highest height of the top end of the column two (3) is 1.8 meters upward from the bottom end of the work box (11) after the work box (11) reaches the upper limit position.

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