Pneumatic lifting device for decoration construction

Abstract

The utility model discloses a pneumatic lifting device of decoration construction, include: base, its bottom four corners all are equipped with the universal wheel of lock with, the carrier plate is set up above the base, and its top two sides and top rear side all are fixedly connected with a plurality of support rods. The utility model discloses through setting up a series of structures, it is convenient to drive the front baffle pole to lift the block protection first and then drive the carrier plate to lift the support when elevating, and can drive the carrier plate to move down first and then drive the front baffle pole to move down and solve the block when descending, guarantee the safe use, and personnel directly from the front side in and out work is convenient, and personnel need not separately to the front side and solve the block and shield fixed operation, and utilize the mode that the vertical guide cooperation in two sides is penetrated to the upper portion and is driven to lift, can effectively avoid the phenomenon that the lifting vertical guide structure setting is in the lower portion and occupies too large space and leads to the carrier support position too high and is difficult for personnel to in and out and take and place articles, and convenient for personnel to easily in and out and place the decoration tool, improve the use convenience.

Description

Technical Field

[0001] This utility model relates to the field of decoration and renovation technology, specifically a pneumatic lifting device for decoration and renovation construction. Background Technology

[0002] A pneumatic lifting device is a device that can be directly used with on-site construction air compressors and other air supply equipment to drive the lifting of objects. It is an important auxiliary tool in the process of interior decoration and renovation. Since air equipment such as nail guns and air cleaning guns are indispensable in interior decoration and renovation, high-pressure air supply equipment such as air compressors are provided on-site to meet the air supply conditions for starting the lifting device.

[0003] In response, a search revealed that announcement number CN215760299U discloses a pneumatic lifting device for convenient decoration and renovation construction. The device includes a top plate, with a protective pad fixedly installed at the top. A crossbar is rotatably installed at the bottom of the top plate, and a base plate is rotatably installed at the bottom of the crossbar. The top and base plates have internal slots. One side of the crossbar is slidably installed inside the slot. A cylinder is rotatably installed inside the crossbar, with one side of the cylinder rotatably connected to one side of the base plate. A pressure plate is connected to one side of the cylinder via a wire. An auxiliary mechanism is fixedly installed at the top of the top plate. The device features a moving mechanism that raises the support base, facilitating movement of the equipment via wheels. When moved to a suitable position, the screw is rotated in the opposite direction, causing the wheels to point upwards, and the support base to contact the ground, thus securing it stably.

[0004] The aforementioned technology discloses a pneumatic lifting device for convenient decoration and renovation construction. Through a cylinder and on-site air supply equipment, combined with a telescopic vertical guide structure consisting of cross rods, round rods, and insert rods at the bottom, it can drive the ceiling to lift and lower for load support work. However, in actual use, it has the following shortcomings: 1. The design of directly setting the cylinder lifting drive and vertical guide structure at the bottom of the ceiling results in a large space occupation at the bottom, making the initial support position high and difficult for personnel to easily enter and exit or place decoration tools, thus lacking convenience; 2. In addition, the method of opening or closing the guardrail lock on one side by personnel during entry and exit requires individual operation, further reducing convenience. Therefore, this application proposes a pneumatic lifting device for decoration and renovation construction to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a pneumatic lifting device for decoration and renovation construction, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic lifting device for decoration and renovation construction, comprising: The base has lockable casters installed at all four corners. The carrier plate is set above the base, and multiple support rods are fixedly connected to its top two sides and top rear side. The top of all the support rods is fixedly connected to the same U-shaped guardrail, and the same front stop is slidably sleeved on the two support rods located at the frontmost side. A pneumatic two-point sequential lifting drive assembly is fixedly installed on the top of the base and fixedly connected to the top of the front stop. The carrier plate is fixedly sleeved on the pneumatic two-point sequential lifting drive assembly. The pneumatic two-point sequential lifting drive assembly is used to first drive the front stop to rise and then drive the carrier plate to rise and support. It is also used to first drive the carrier plate to move down and then drive the front stop to move down and release the blockage. By using the method of releasing the front side shield, it is convenient for personnel to directly enter and exit the work. In addition, by using the method of automatically raising the shield on the front side when it is raised and forming a protective enclosure with the U-shaped railing, the safety of personnel during use is improved. The telescopic vertical guide assembly consists of four sets, which are fixedly connected to the top of the base in a rectangular shape. The two sides of the carrier plate are fixedly connected to two corresponding telescopic vertical guide assemblies. The telescopic vertical guide assemblies are used to vertically guide the carrier plate. The threaded vertical adjustment and stabilizing assembly consists of four sets, which are rectangularly embedded and fixed on the top of the base; the threaded vertical adjustment and stabilizing assembly is used to stabilize the lower part against the ground.

[0007] Preferably, the pneumatic two-point sequential lifting drive assembly includes a cylinder, a box-shaped base, two T-shaped guide rails, a lifting seat, and an L-shaped connecting rod. The box-shaped base is embedded and fixed on the top of the carrier plate, and the front and bottom sides of the box-shaped base are both open. The cylinder is fixedly installed at the top center of the base, and the extended end of the cylinder is fixedly connected to the bottom of the lifting seat. The two T-shaped guide rails are respectively fixedly connected to the inner walls on both sides of the box-shaped base. The lifting seat is slidably installed on the two T-shaped guide rails. The lifting seat is located below and cooperates with the top inner wall of the box-shaped base. The rear end and bottom end of the L-shaped connecting rod are respectively between the front side of the lifting seat and the top of the front stop bar. The cylinder is connected to a wireless remote control pneumatic switch fixedly installed on the front side of the top of the base through an air pipe. The wireless remote control pneumatic switch is matched with an external remote control and is used to connect to an external air compressor.

[0008] Preferably, the telescopic vertical guide assembly includes an outer tube and inner rods. The two sides of the carrier plate are welded and fixed to the outer sides of the corresponding two outer tubes, and the four inner rods are slidably sleeved in the corresponding outer tubes. The bottom ends of the four inner rods are fixedly connected to the top of the base.

[0009] Preferably, the threaded vertical adjustment and support assembly includes a T-shaped screw, a nut, and support feet. The four nuts are rectangularly embedded and fixed on the top of the base. The four T-shaped screws are threaded into the corresponding nuts. The four support feet are fixedly connected to the bottom of the corresponding T-shaped screws. Anti-slip pads are glued and fixed to the bottom of the support feet. The two support feet on the same side are located between the two corresponding lockable casters.

[0010] Preferably, a temporary tool storage box is fixedly connected to the top of the box-shaped base.

[0011] Preferably, the base is fixedly connected to a support, and three support balls are movably embedded in the bottom of the support. The bottom of the support balls and the bottom of the lockable caster are on the same horizontal plane.

[0012] Preferably, a rectangular mounting hole is provided at the top center of the carrier plate to be fixedly connected to the outside of the box-shaped seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. With the threaded vertical adjustment support component and base, the bottom can be firmly supported against the ground during use, reducing the risk of slippage due to the locking caster wheels and improving stability during use; 2. Through the coordinated operation of the base, carrier plate, support rod, U-shaped guardrail, front stop, pneumatic two-point lifting drive assembly and telescopic vertical guide assembly, when raising the device, the front stop is driven to rise first to protect the device and then the carrier plate is driven to rise for support. When lowering the device, the carrier plate is driven to move down first and then the front stop is driven to move down to release the barrier. By releasing the barrier from the front, it is convenient for personnel to enter and exit the work directly from the front. Furthermore, the automatic raising of the barrier from the front when it is raised, together with the U-shaped guardrail to form a protective enclosure, improves the safety of personnel during use. It also eliminates the need for personnel to separately release and fix the barrier from the front, thus improving the ease of use. By using vertical guides on both sides and a central drive to the top for lifting, the problem of excessive space occupied by the lifting vertical guide structure at the bottom, which would make it difficult for people to enter and exit or retrieve items, can be effectively avoided. This allows for easy access for people to enter and exit and place decoration tools, further improving ease of use.

[0014] This utility model incorporates a series of structures that facilitate lifting the front baffle first to raise the protective barrier, followed by lifting the support plate. Conversely, during descent, the support plate is driven down first, followed by lowering the front baffle to release the barrier. This ensures safety while allowing personnel to easily enter and exit from the front, eliminating the need for separate front-side barrier release and securing operations. Furthermore, the use of vertical guides on both sides, extending through the middle to the top for lifting and lowering, effectively avoids the problem of excessive space occupied by vertical guides at the bottom, which would otherwise make the support position too high for personnel to enter, exit, or retrieve items. This design allows for easy access and placement of tools, significantly improving usability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pneumatic lifting device for decoration and renovation construction proposed in this utility model. Figure 2This is a top view schematic diagram of a pneumatic lifting device for decoration and renovation construction proposed in this utility model. Figure 3 This is a bottom view structural diagram of a pneumatic lifting device for decoration and renovation construction proposed in this utility model.

[0016] In the diagram: 1. Base; 101. Box-shaped seat; 102. Cylinder; 103. Lifting seat; 104. T-shaped guide rail; 105. L-shaped connecting rod; 106. Front stop bar; 2. Carrier plate; 201. Support rod; 202. U-shaped guardrail; 3. Outer tube; 301. Inner rod; 4. T-shaped screw; 401. Nut; 402. Support leg; 5. Support; 501. Support ball; 6. Temporary tool storage box. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 3 As shown in this embodiment, a pneumatic lifting device for decoration and renovation construction includes: Base 1, with lockable casters installed at all four corners of its bottom; The carrier plate 2 is set above the base 1. Multiple support rods 201 are fixedly connected to its top two sides and top rear side. The top of all support rods 201 is fixedly connected to the same U-shaped guardrail 202. The same front stop rod 106 is slidably sleeved on the two support rods 201 at the frontmost side. The top of the front stop rod 106 has two vertical guide holes that are slidably sleeved on the outer sides of the two front support rods 201 respectively, which serve to guide the front stop rod 106 vertically. A pneumatic two-point sequential lifting drive assembly is fixedly installed on the top of the base 1 and fixedly connected to the top of the front baffle 106. The carrier plate 2 is fixedly sleeved on the pneumatic two-point sequential lifting drive assembly. The pneumatic two-point sequential lifting drive assembly is used to first drive the front baffle 106 to rise and then drive the carrier plate 2 to rise and support. It is also used to first drive the carrier plate 2 to move down and then drive the front baffle 106 to move down and release the baffle. By using the method of releasing the front side shield, it is convenient for personnel to directly enter and exit the work. In addition, by using the method of automatically raising the shield on the front side when it is raised and forming a protective enclosure with the U-shaped guardrail 202, the safety of personnel during use is improved. The telescopic vertical guide assembly consists of four sets, which are fixedly connected to the top of the base 1 in a rectangular shape. The two sides of the carrier plate 2 are respectively fixedly connected to two corresponding telescopic vertical guide assemblies. The telescopic vertical guide assembly is used to vertically guide the carrier plate 2. The threaded vertical adjustment and stabilizing assembly consists of four sets, which are rectangularly embedded and fixed on the top of the base 1; the threaded vertical adjustment and stabilizing assembly is used to stabilize the lower part against the ground.

[0019] Furthermore, such as Figure 1 and 2 As shown, the pneumatic two-point sequential lifting drive assembly includes a cylinder 102, a box-shaped base 101, two T-shaped guide rails 104, a lifting seat 103, and an L-shaped connecting rod 105. The box-shaped base 101 is embedded and fixed on the top of the carrier plate 2. The front and bottom of the box-shaped base 101 are both open. The cylinder 102 is fixedly installed at the top center of the base 1. The extended end of the cylinder 102 is fixedly connected to the bottom of the lifting seat 103. The two T-shaped guide rails 104 are respectively fixedly connected to the inner walls of the two sides of the box-shaped base 101. The lifting seat 103 is slidably mounted on two T-shaped guide rails 104. The lifting seat 103 is located below the top inner wall of the box-shaped seat 101 and cooperates with it. The rear end and bottom end of the L-shaped connecting rod 105 are respectively between the front side of the lifting seat 103 and the top of the front stop bar 106. The cylinder 102 is connected to a wireless remote control pneumatic switch fixedly mounted on the top front side of the base 1 through an air pipe. The wireless remote control pneumatic switch is matched with an external remote control. The wireless remote control pneumatic switch is used to connect with external air compressor equipment. In this embodiment, a temporary tool storage box 6 is fixedly connected to the top of the box-shaped base 101, which facilitates temporary storage of tools and accessories for personnel; a rectangular mounting hole is opened in the middle of the top of the carrier plate 2, which is fixedly connected to the outside of the box-shaped base 101; and T-shaped sliding grooves with open tops and bottoms are opened on both sides of the lifting base 103. The T-shaped sliding grooves are slidably connected to the corresponding T-shaped guide rails 104, which serves to guide the vertical sliding of the lifting base 103. In this embodiment, the cylinder 102, the box-shaped seat 101, the two T-shaped guide rails 104, the lifting seat 103, and the L-shaped connecting rod 105 work together. The cylinder 102 drives the lifting seat 103 to move upward or downward. When the lifting seat 103 moves upward, the L-shaped connecting rod 105 first drives the front stop 106 to rise for front protection. When the lifting seat 103 moves upward to contact the top inner wall of the box-shaped seat 101, it is lifted, causing the box-shaped seat 101 to start moving upward and driving the carrier plate 2 to move upward. When the lifting seat 103 moves downward, the lifting height of the box-shaped seat 101 is gradually reduced. Under gravity, the box-shaped seat 101 and the carrier plate 2 move downward until the carrier plate 2... When the lifting seat 103 moves down to the point where it is blocked by the base 1 and can no longer move down, the lifting seat 103, which continues to move down, drives the front stop 106 to move down through the L-shaped connecting rod 105 to release the front obstruction. This achieves the effect that when raising the seat, the front stop 106 is driven to raise the guardrail first, and then the carrier plate 2 is driven to raise the support. In subsequent use, when lowering the seat, the carrier plate 2 is driven to move down first, and then the front stop 106 is driven to move down to release the obstruction. By using the method of releasing the obstruction from the front, it is convenient for personnel to enter and exit the work directly from the front. Furthermore, by using the method of automatically raising the obstruction from the front and forming a protective enclosure with the U-shaped guardrail 202 when the seat is raised, the safety of personnel during use is improved, and the convenience of use is improved because personnel do not need to perform separate operations to release and block the obstruction from the front.

[0020] Furthermore, such as Figure 1 and 2 As shown, the telescopic vertical guide assembly includes an outer tube 3 and inner rods 301. The two sides of the carrier plate 2 are welded and fixed to the outer sides of the corresponding two outer tubes 3 respectively. The four inner rods 301 are slidably sleeved in the corresponding outer tubes 3. The bottom ends of the four inner rods 301 are fixedly connected to the top of the base 1. In this implementation scheme, the outer tubes 3 and inner rods 301 cooperate to drive the four outer tubes 3 to slide vertically on the four inner rods 301 when the carrier plate 2 moves up and down. The four inner rods 301 guide the carrier plate 2 vertically through the four outer tubes 3. In addition, by using vertical guides on both sides and a central drive to the top for lifting, the problem of the lifting vertical guide structure occupying too much space at the bottom, resulting in the support position being too high and difficult for personnel to enter and exit and to retrieve and place items, can be effectively avoided, thus improving the convenience of use.

[0021] Furthermore, such as Figure 2 and 3 As shown, the threaded vertical adjustment and support assembly includes a T-shaped screw 4, a nut 401, and a support leg 402. The four nuts 401 are rectangularly embedded and fixed on the top of the base 1. The four T-shaped screws 4 are threaded into the corresponding nuts 401. The four support legs 402 are fixedly connected to the bottom of the corresponding T-shaped screw 4. The bottom of the support leg 402 is glued and fixed with an anti-slip rubber pad. The two support legs 402 on the same side are located between the two corresponding lockable casters. In this embodiment, the top of the base 1 is provided with four mounting holes that are welded and fixed to the outer side of the corresponding nut 401 respectively; In this embodiment, the T-shaped screw 4, nut 401, and support leg 402 work together. When in use, rotating the T-shaped screw 4 forward causes it to rotate within the corresponding nut 401 and move downward. The T-shaped screw 4 drives the corresponding support leg 402 to move downward, and the support leg 402 drives the corresponding anti-slip rubber pad to press firmly against the ground. By using the four support legs 402 to press directly against the ground through the four anti-slip rubber pads, the system achieves a stable support effect by pressing firmly against the ground at the bottom during use.

[0022] Furthermore, such as Figure 3 As shown, a support 5 is fixedly connected to the bottom of the base 1. Three support balls 501 are movably embedded in the bottom of the support 5. The bottom of the support balls 501 is on the same horizontal plane as the bottom of the lockable caster. The support 5 and the three support balls 501 work together to provide movable support for the base 1 in the lower middle part, preventing the bottom of the cylinder 102 from squeezing the lower part of the base 1 and bending it downward when the load is raised, thus further improving the stability of use.

[0023] It should be noted that: Cylinder 102 preferably uses a long-stroke, high-load-bearing cylinder of model QGB320*1700. This cylinder is a standard QGB series cylinder from Henan Kailong. The cylinder has a stroke of 1700mm and is equipped with a Y / U-shaped connector. The upper and lower end caps and piston are made of ductile iron (QT450), which is wear-resistant, impact-resistant, and very sturdy and durable. Under a pressure of 0.6MPa, the theoretical thrust is approximately 4800 kg, which meets the lifting requirements for personnel and tools during interior decoration and renovation. The wireless remote control pneumatic switch preferably uses a wireless remote control pneumatic reversing valve of model BESTACT RCS-2S. It is a matching product for cylinder 102 and can be connected to an external field pressure controller via an air pipe to control the switching of cylinder 102. It should be further noted that the box-shaped base 101, the two T-shaped guide rails 104, the lifting base 103, the L-shaped connecting rod 105, the outer tube 3, the inner rod 301, the T-shaped screw 4, the nut 401, the support leg 402, and the support 5 are all preferably made of stainless steel. The T-shaped screw 4 has a high wear-resistant load-bearing specification with a thread clearance of 1.5-2.5mm on the outer side. The stainless steel material has the advantages of high hardness, high wear resistance, and good maintenance-free effect, which ensures the stability of long-term connection and drive support.

[0024] The usage method of this embodiment is as follows: When using the pneumatic lifting device for decoration and renovation construction, move the device to the position that needs support, rotate the T-shaped screw 4 in the forward direction so that it rotates in the corresponding nut 401 and moves downward. The T-shaped screw 4 drives the corresponding support leg 402 to move downward. The support leg 402 drives the corresponding anti-slip rubber pad to press down and squeeze it against the ground. By using the four support legs 402 to press directly against the ground through the four anti-slip rubber pads, the device achieves the effect of stable support by pressing against the ground at the bottom during use, reducing the risk of slippage due to the lockable universal wheels and improving the stability of use. The wireless remote-controlled pneumatic switch is pre-connected to the on-site air supply equipment such as an air compressor via an air pipe. Personnel use an external remote control to operate the wireless remote-controlled pneumatic switch to drive cylinder 102 in the forward direction. At this time, cylinder 102 drives the lifting seat 103 to slide upwards on the two T-shaped guide rails 104. When the lifting seat 103 moves upwards, it first drives the front stop lever 106 to rise via the L-shaped connecting rod 105 for front protection. When the lifting seat 103 moves upwards and contacts the top inner wall of the box-shaped seat 101, it is lifted, causing the box-shaped seat to... 101 begins to move upward, causing the carrier plate 2 to move upward as well. The carrier plate 2 drives the four outer tubes 3 to slide vertically on the four inner rods 301, providing vertical guidance. The carrier plate 2 supports and lifts the decorators and tools. When it is necessary to lower the load, the control cylinder 102 is activated in reverse, causing the lifting seat 103 to move downward. As the lifting seat 103 moves downward, it first gradually reduces the lifting height of the box-shaped seat 101. Under gravity, the box-shaped seat 101 and the carrier plate 2 move downward until the carrier plate 2 moves to the desired height. When the lowering position is restricted by the base 1 and no longer moves downward, the lowering seat 103, which continues to move downward, drives the front stop 106 to move downward via the L-shaped connecting rod 105 to release the front obstruction. This achieves the effect of first driving the front stop 106 to raise the guard when raising the seat, and then driving the carrier plate 2 to rise for support. In subsequent use, the effect of first driving the carrier plate 2 to move downward and then driving the front stop 106 to move downward to release the obstruction when lowering the seat is achieved. By using the method of releasing the obstruction from the front, it is convenient for personnel to enter and exit directly from the front. Furthermore, the method of automatically raising the obstruction from the front and forming a protective enclosure with the U-shaped guardrail 202 when the seat is raised improves the safety of personnel during use and eliminates the need for personnel to perform separate operations to release and fix the obstruction from the front, thus improving ease of use. In addition, the method of using vertical guides on both sides and a central drive to the top for lifting and lowering effectively avoids the problem of the lifting vertical guide structure occupying too much space at the bottom, making the support position too high and difficult for personnel to enter and exit and to retrieve and place items. This allows personnel to easily enter and exit and place decoration tools, further improving ease of use.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatic lifting device for decoration and renovation construction, comprising a base (1), characterized in that: include: The base (1) has lockable casters installed at all four corners of its bottom; The carrier plate (2) is set above the base (1). Multiple support rods (201) are fixedly connected to the top two sides and the top rear side. The top of all the support rods (201) is fixedly connected to the same U-shaped guardrail (202). The same front stop (106) is slidably sleeved on the two support rods (201) at the frontmost side. The pneumatic two-point sequential lifting drive assembly is fixedly installed on the top of the base (1) and fixedly connected to the top of the front stop (106). The carrier plate (2) is fixedly sleeved on the pneumatic two-point sequential lifting drive assembly. The telescopic vertical guide assembly consists of four sets, which are fixedly connected to the top of the base (1) in a rectangular shape. The two sides of the carrier plate (2) are fixedly connected to the corresponding two telescopic vertical guide assemblies respectively. The threaded vertical adjustment and support assembly consists of four sets, which are rectangularly embedded and fixed on the top of the base (1).

2. The pneumatic lifting device for decoration and renovation construction according to claim 1, characterized in that: The pneumatic two-point sequential lifting drive assembly includes a cylinder (102), a box-shaped base (101), two T-shaped guide rails (104), a lifting seat (103), and an L-shaped connecting rod (105). The box-shaped base (101) is embedded and fixed on the top of the carrier plate (2). The front and bottom of the box-shaped base (101) are both open. The cylinder (102) is fixedly installed in the middle of the top of the base (1). The extended end of the cylinder (102) is fixedly connected to the bottom of the lifting seat (103). The two T-shaped guide rails (104) are respectively fixed to the inner walls on both sides of the box-shaped base (101). The lifting seat (103) is slidably mounted on two T-shaped guide rails (104). The lifting seat (103) is located below the top inner wall of the box-shaped seat (101) and cooperates with it. The rear end and bottom end of the L-shaped connecting rod (105) are respectively between the front side of the lifting seat (103) and the top of the front stop (106). The cylinder (102) is connected to a wireless remote control pneumatic switch fixedly mounted on the front side of the top of the base (1) through an air pipe. The wireless remote control pneumatic switch is matched with an external remote control. The wireless remote control pneumatic switch is used to connect with an external air compressor.

3. The pneumatic lifting device for decoration and renovation construction according to claim 1, characterized in that: The telescopic vertical guide assembly includes an outer tube (3) and inner rods (301). The two sides of the carrier plate (2) are welded and fixed to the outer sides of the corresponding two outer tubes (3). The four inner rods (301) are slidably sleeved in the corresponding outer tubes (3). The bottom ends of the four inner rods (301) are fixedly connected to the top of the base (1).

4. The pneumatic lifting device for decoration and renovation construction according to claim 1, characterized in that: The threaded vertical adjustment and support assembly includes a T-shaped screw (4), a nut (401), and a support foot (402). The four nuts (401) are rectangularly embedded and fixed on the top of the base (1). The four T-shaped screws (4) are threaded into the corresponding nuts (401). The four support feet (402) are fixedly connected to the bottom of the corresponding T-shaped screws (4). The bottom of the support foot (402) is glued and fixed with an anti-slip pad. The two support feet (402) on the same side are located between the two corresponding lockable casters.

5. A pneumatic lifting device for decoration and renovation construction according to claim 2, characterized in that: A temporary tool storage box (6) is fixedly connected to the top of the box-shaped base (101).

6. The pneumatic lifting device for decoration and renovation construction according to claim 1, characterized in that: The base (1) is fixedly connected to a support (5) at the bottom. Three support balls (501) are movably embedded in the bottom of the support (5). The bottom of the support balls (501) and the bottom of the lockable caster are on the same horizontal plane.

7. A pneumatic lifting device for decoration and renovation construction according to claim 2, characterized in that: A rectangular mounting hole is provided at the top center of the carrier plate (2) to be fixedly connected to the outer side of the box-shaped seat (101).

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