Auxiliary lifting device for indoor pipeline installation

Abstract

The invention relates to an auxiliary lifting device for indoor pipeline installation. The auxiliary lifting device comprises a lifting mechanism, an angle adjusting mechanism and a clamping mechanism. The angle adjusting mechanism comprises a center frame, a first swing frame, a second swing frame, an adjusting piece and a bracket. The bottoms of the first swing frame and the second swing frame are hinged to the two sides of the center frame. The center frame is vertically fixed to the middle of the lifting base, the two ends of the adjusting piece are hinged between the center frame and the first swing frame or the second swing frame, a center base is hinged to the upper portion of the center frame, swing bases are hinged to the upper portion of the first swing frame and the upper portion of the second swing frame, and telescopic sleeve rods matched and assembled are arranged between the center base and the swing bases on the two sides. The brackets are correspondingly fixed in the centers of the swinging seats on the two sides; the clamping assembly comprises an adjusting lead screw, a sliding block and a clamping base. The problems that a traditional device is single in function, cannot adjust angles and cannot be pushed are effectively solved, the construction safety and efficiency are improved, and the device is suitable for narrow spaces and multiple pipe diameters and is suitable for indoor pipeline installation of fabricated buildings.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to an auxiliary lifting device for indoor pipeline installation. BACKGROUND

[0002] Under the background of the rapid development of building industrialization and assembly technology, indoor pipeline installation construction still faces many technical bottlenecks, and traditional construction technology and existing auxiliary equipment have been difficult to meet the needs of efficient, safe and accurate construction. In the current indoor pipeline installation construction, the limitations of traditional technology are particularly prominent. From the safety point of view, a single DN200 steel pipe needs to be carried by multiple people, which can easily cause accidents such as slipping and falling of personnel and falling of pipes. At the same time, when manual operation is carried out on high-position pipes above 2m, it directly violates the load limit provisions of the "Safety Technology Standard for High-altitude Operation of Building Construction", and the safety hidden danger is significant. From the construction efficiency point of view, the traditional installation process needs to go through the links of measurement positioning, scaffold erection, manual lifting, temporary fixing and precision adjustment, and the installation of a single pipe takes 45-60 minutes, of which 38% of the time is consumed in the position fine-tuning link, and the process redundancy problem is obvious. In addition, the adaptability of the construction equipment to the narrow space (such as the corridor with a width of ≤1.5m) is strictly required, and the ordinary forklift cannot enter due to the minimum turning radius of 2.5 meters, so the narrow area still relies on manual operation; and when the pipe is installed at the corner, the manual repeated disassembly and fixing of the support will additionally increase 23% of the working hours, further reducing the construction efficiency.

[0003] The existing auxiliary lifting device generally uses a combination of moving and lifting structure, which can replace manual lifting to a certain extent, but the functional design has obvious defects. The general lifting device on the market can only realize the height lifting of the pipe, and cannot meet the needs of complex construction scenes: first, in the special scene of pipe inclined butt joint, the existing device lacks angle adjustment function and cannot accurately control the inclination angle of the pipe, which needs to rely on manual adjustment, increasing the operation risk and time cost; second, the existing device only has basic lifting function, and the pipe is easy to shake during lifting, which has poor stability, not only affecting the installation accuracy, but also may cause safety accidents due to pipe slipping; third, for the butt joint demand of pipe passing through the hole, the existing device cannot provide pushing assistance, and still needs manual pushing to complete the alignment, which not only has low construction efficiency, but also is difficult to ensure the operation safety in narrow space. Therefore, the existing technology has the defects of high safety risk, long process time, poor space adaptability and single function in pipeline installation construction, and an auxiliary device integrating lifting, angle adjustment, stable clamping and pushing function is needed to solve the above technical problems. SUMMARY

[0004] In view of this, the purpose of the present application is to provide a kind of indoor pipeline installation auxiliary lifting device, effectively solve the existing pipeline lifting and lowering structure Single function, unable to adjust angle and advance task, there are limitations in use Problem.

[0005] To achieve the above object, the technical scheme adopted by the present application is: a kind of indoor pipeline installation auxiliary lifting device, including lifting mechanism, angle adjusting mechanism and clamping mechanism;The lifting mechanism includes mobile base, mobile wheel, lifting seat and lifting assembly;The mobile base is arranged with mobile wheel at bottom, lifting assembly is vertically arranged on its upper portion, the lifting seat is installed on lifting assembly, to realize its vertical lifting movement; The angle adjusting mechanism includes center frame, first swing frame, second swing frame, adjusting piece and support seat;The bottom of the first swing frame and the second swing frame are hinged on the two sides of the center frame;Center frame is fixed in the middle of lifting seat along vertical direction, the two ends of adjusting piece are hinged between center frame and first swing frame or second swing frame, the upper portion of center frame is hinged with center seat, the upper portion of first swing frame and second swing frame is hinged with swing seat, the center seat and the swing seat on both sides are provided with telescopic sleeve rod matched with each other;The support seat is fixed on the center of swing seat on both sides correspondingly; The clamping assembly includes adjusting screw, sliding block and clamping seat;The upper center of center seat is provided with adjusting groove along length direction, the adjusting screw is reverse threaded structure, and is rotationally assembled in adjusting groove, one end is in transmission connection with driving part, the sliding block is matched with thread connection on the two threads of adjusting screw, and is matched with each other in adjusting groove, the clamping seat is fixed on the upper portion of sliding block, and forms clamping space, the center of clamping space corresponds with the center of support seat.

[0006] Further, the middle part of the support seat is isosceles trapezoidal, the upper part of the clamping seat is provided with a clamping inclined surface inclined to the clamping space, and the inclined surface of the support seat and the inclined surface of the clamping seat form an adjustable clamping space.

[0007] Further, the telescopic sleeve rod includes sleeve rod and sleeve, the sleeve is fixed on the side surface of center seat, the sleeve rod is fixed on the side surface of swing seat, and the sleeve rod is sleeved in the sleeve.

[0008] Further, the lifting assembly includes lifting frame, pulley block, lifting motor and lifting seat;The lifting frame is fixed on the mobile base, the lifting seat is vertically sleeved on both sides of the lifting frame, and the lifting motor is fixed on the lifting frame and connected with the lifting seat through the pulley block.

[0009] Further, the lifting seat includes lifting block and bracket, the lifting block is sleeved on both sides of the lifting frame, the bracket is fixedly assembled on the lifting block, the first swing frame and the second swing frame are respectively hinged on both sides of the bracket, and the center frame is fixed in the middle of the bracket.

[0010] Further, the pushing assembly comprises a pushing roller arranged on the clamping seat and protruding from the clamping space, and a driving motor in transmission connection with the pushing roller.

[0011] Further, the pushing roller is arranged in two groups, the driving motor is in transmission connection with the two pushing rollers through a belt, and the surface of the pushing roller is provided with a rubber layer.

[0012] Further, the moving seat is provided with a distance sensor for measuring the distance of the lifting device relative to the construction surface.

[0013] Further, the adjusting rod is a telescopic cylinder, and corresponding hinge seats are arranged on the first swing frame and the center seat, and the two ends of the telescopic cylinder are hingedly connected to the hinge seats.

[0014] Further, the supporting seat is provided with a driven roller shaft.

[0015] The beneficial effects of the above technical scheme are: the present application is mainly used to solve the pain points of traditional indoor pipeline installation construction, and replaces manual operation through integrated mechanical structure design. In view of the high safety risk of traditional construction, the present application adopts a mechanical clamping and lifting structure to avoid manual lifting and high-altitude heavy work, and reduces hidden dangers through stable clamping and brake buffer design. In order to improve efficiency, integrate multiple processes, reduce manual participation and fine-tuning time, and realize coherent process. Considering the space adaptability, the flexible turning structure is designed to adapt to narrow corridors, and operations such as angle adjustment and hole penetration are realized. Through adjustable clamping space and precise control of lifting flexibility, combined with integrated control to realize semi-automation, reduce physical consumption and experience dependence, and finally optimize the construction process.

[0016] Specifically, the present application replaces manual lifting and high-altitude heavy work with mechanical operation, which reduces the risk of pipeline falling and personnel injury from the root, and fully meets the requirements of relevant safety specifications. The stable clamping structure can effectively prevent the pipeline from shaking or slipping during lifting; the brake and buffer design of the equipment can reduce the hidden dangers such as collision and pipeline scratching. At the same time, the multiple processes of pipeline installation are integrated into a coherent process, and the time consumption of single pipeline installation is greatly shortened compared with the traditional way. The degree of manual participation is significantly reduced, and a single person can complete the pipeline feeding operation; the process connection is more smooth, and the time consumption of position fine-tuning is reduced. The present application device turns flexibly and can easily pass through the narrow corridors commonly seen in indoor, and adapts to the operation requirements of indoor narrow space. The pipeline inclination angle adjustment and pipeline hole penetration operations can be realized, which can meet the installation requirements of various different scenes. The clamping space can be flexibly adjusted, can be adapted to pipes of various pipe diameters, and does not need to replace special clamps. The height, angle and pushing position of the pipe can be accurately controlled, and the pipe alignment accuracy is greatly improved. In summary, the application realizes the pushing and conveying of pipes at different angles through the angle, pushing and distance sensors, realizes the rapid installation and construction of pipes, simplifies the construction steps, effectively reduces the physical exertion of construction personnel, the integrated control design simplifies the operation process, reduces the dependence on the experience of construction personnel, reduces the manual judgment error, and comprehensively solves the problems of safety, efficiency, space adaptability and the like in traditional pipe construction, and is suitable for indoor pipeline installation scenes of prefabricated buildings. BRIEF DESCRIPTION OF DRAWINGS Figure 1 is a schematic diagram of the implementation structure of the application; Figure 2 is a schematic diagram of the implementation structure of the auxiliary adjustment structure of the application; Figure 3 is another perspective view of Figure 2 ; Figure 4 is a bottom view of the auxiliary adjustment structure; Figure 5 is a side view of the auxiliary adjustment structure; Figure 6 is a top view of the auxiliary adjustment structure; Figure 7 is a front view of the auxiliary adjustment structure; Figure 8 is a schematic diagram of the implementation structure of the pushing mechanism; Figure 9 is a side view of Figure 8 ; Figure 10 is a front view of Figure 8 ; Figure 11 is a schematic diagram of the transmission structure of the double roller shafts.

[0017] Reference signs: 1 - moving base, 2 - moving wheel, 3 - distance sensor, 4 - lifting frame, 5 - lifting block, 6 - pulley set, 7 - lifting motor, 8 - bracket, 9 - first swing frame, 10 - second swing frame, 11 - swing seat, 12 - center frame, 13 - center seat, 14 - adjustment piece, 15 - adjustment lead screw, 16 - sliding block, 17 - driving part, 18 - clamping seat, 19 - support seat, 20 - pipe, 21 - telescopic sleeve rod, 211 - sleeve rod, 212 - sleeve, 22 - clamping inclined surface, 23 - pushing roller, 24 - belt, 25 - driving motor. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: This example aims to provide an auxiliary lifting device for indoor pipe installation, belonging to the field of building engineering equipment technology. Specifically, it relates to a mechanized lifting device for indoor pipe installation, which is particularly suitable for the installation of fire water, HVAC and other piping systems, and is used to solve the problem of high labor time for indoor pipe handling and installation.

[0019] like Figure 1 As shown, an auxiliary lifting device for indoor pipe installation includes a lifting mechanism, an angle adjustment mechanism, and a clamping mechanism. In this embodiment, the lifting mechanism is used to realize the movement and lifting functions of the device, and can be based on the existing pipe lifting machine structure. The focus of this embodiment is the auxiliary adjustment structure mounted on the lifting machine.

[0020] In implementation, the lifting mechanism used in this embodiment includes a movable base 1, movable wheels 2, a lifting seat, and a lifting assembly; the movable base 1 has movable wheels 2 arranged at its bottom, and a lifting assembly is arranged vertically on its upper part. The lifting seat is installed on the lifting assembly to realize its vertical lifting movement; the lifting assembly includes a lifting frame 4, a pulley block 6, a lifting motor 7, and a lifting seat; the lifting frame 4 is fixed on the movable base 1, the lifting seat is slidably fitted on both sides of the lifting frame 4 vertically, and the lifting motor 7 is fixed on the lifting frame 4 and connected to the lifting seat through the pulley block 6.

[0021] During implementation, the mobile base 1 is made of Q345B low alloy high strength steel (yield strength ≥345MPa) and welded from 80*60*5mm rectangular tubes, which ensures the overall load-bearing capacity and controls the weight of the equipment through lightweight design.

[0022] Regarding the casters, this embodiment employs a four-wheel configuration. The front wheels are equipped with a 360° steering structure and a braking device, with a minimum turning radius of only 1.2 meters, allowing for flexible passage through indoor corridors with a width of ≥1.5m. The rear wheels are made of wear-resistant rubber with a diameter of 150mm. Combined with the braking device, they can lock the equipment during pipe installation, preventing displacement from affecting accuracy and facilitating fine-tuning of the equipment in the forward, backward, left, and right directions during installation, ensuring pipe installation accuracy. Furthermore, braked casters are used; once the pipe is moved to the installation position, the braking device locks the casters, preventing equipment movement during pipe installation and ensuring installation accuracy.

[0023] The lifting seat comprises a lifting block 5 and a bracket 8, the lifting block 5 is sleeved on both sides of the lifting frame 4, the bracket 8 is fixedly assembled on the lifting block 5, the lifting frame 4 is a double-side vertical beam structure, and force is branched through a pulley block 6 (containing two fixed pulleys and one movable pulley); a lifting motor 7 is selected as a servo motor, and the lifting seat can be lifted by cooperating with a speed reducer box; the lifting seat is slidably connected with the lifting frame 4 through the lifting block 5, the bracket 8 at the top is welded by a steel plate with a thickness of 8 mm, serves as a mounting base of an angle adjusting mechanism, and can bear radial pressure when the pipeline is lifted.

[0024] The angle adjusting mechanism realizes accurate adjustment of the tilting angle of the pipeline through a multi-hinged structure, and solves the problem of repeated disassembly and assembly of the support during traditional manual corner installation. In the specific structure, the angle adjusting mechanism comprises a center frame 12, a first swing frame 9, a second swing frame 10, an adjusting part 14 and a support seat 19; the center frame 12 is fixed in the middle of the lifting seat in the vertical direction, and the bottoms of the first swing frame 9 and the second swing frame 10 are hinged on both sides of the center frame 12; the first swing frame 9 and the second swing frame 10 are respectively hinged on both sides of the bracket 8, and the center frame 12 is fixed in the middle of the bracket 8.

[0025] The first swing frame 9, the second swing frame 10 and the center frame 12 all adopt a steel frame structure, the center frame 12 is fixed in the middle of the bracket 8 and serves as a reference for overall adjustment; the first swing frame 9 and the second swing frame 10 are symmetrically hinged on both sides of the center frame 12 and adopt a triangular frame structure, are connected with the center frame 12 through high-strength pin shafts, and are provided with self-lubricating bearings at the hinge positions to reduce the adjustment resistance; in the structure, the first swing frame 9, the second swing frame 10, the center frame 12 and the bracket 8 can be combined into an integrated structure, and then the bracket 8 is fixedly combined on the lifting block 5 through bolts.

[0026] The adjusting part 14 is hinged between the center frame 12 and the first swing frame 9 or the second swing frame 10, the upper part of the center frame 12 is hinged with a center seat, in the embodiment, the adjusting part 14 selects a hydraulic telescopic sleeve rod with a stroke of 500 mm, and the two ends are respectively hinged to the center frame 12 and the middle of the swing frame, the swing frame is driven to rotate around the hinge point through telescopic driving, and at the same time, an angle sensor is arranged at the bottom hinge point of the first swing frame 9, and the angle sensor can realize precision angle control.

[0027] The upper part of the first swing frame 9 and the second swing frame 10 is hinged with a swing seat 11, a telescopic sleeve rod 21 is arranged between the center seat and the swing seats 11 on both sides in a matched sleeving mode; the support seat 19 is correspondingly fixed in the center of the swing seats 11 on both sides; the center seat 13 and the swing seat 11 are connected through the telescopic sleeve rod 21, the sleeve rod 211 can slide axially along the sleeve 212, which not only limits the swing trajectory of the swing frame, but also guarantees the structural stability during adjustment through matched support.

[0028] The telescopic sleeve rod 21 comprises a sleeve rod and a sleeve, the sleeve is fixed on the side of the center seat 13, the sleeve rod is fixed on the side of the swing seat 11, the sleeve rod is sleeved in the sleeve, the support 19 is fixed on the center of the swing seat 11, and the surface is covered with a 5mm thick rubber pad layer, which can avoid scratching the surface of the pipeline and enhance the stability of the pipeline during placement through friction.

[0029] The clamping assembly comprises an adjusting screw rod 15, a sliding block 16 and a clamping seat 18; the upper center of the center seat 13 is provided with an adjusting groove in the length direction, the adjusting screw rod is of a reverse thread structure and is rotationally assembled in the adjusting groove, one end of the adjusting screw rod is in transmission connection with the driving part 17, the sliding block 16 is adaptively connected in screw threads on the two sections of the adjusting screw rod 15 and is adaptively sleeved in the adjusting groove, and the clamping seat 18 is fixed on the upper part of the sliding block 16 and forms a clamping space, the center of the clamping space corresponds to the center of the support 19.

[0030] The angle adjusting mechanism drives the swing frame to rotate around the hinge point through the hydraulic telescopic sleeve rod 21, cooperates with the telescopic sleeve rod 21 to limit the trajectory, and combines an angle sensor to realize accurate adjustment of the inclination angle of the pipeline. When in action, the hydraulic telescopic sleeve rod 21 drives the first swing frame 9 to swing, the swing seat 11 on the first swing frame 9 moves upward, the telescopic sleeve rod 21 retracts, the center seat 13 swings, the telescopic sleeve rod 21 on the other side retracts, the second swing frame swings, and thus the angle adjustment of the center seat 13 is realized. Therefore, the whole embodiment realizes mechanical linkage of movement, clamping, lifting, angle adjustment and alignment, reduces the participation of manpower, and solves the problems of many safety hazards and low efficiency in traditional construction.

[0031] In the embodiment, the middle part of the support 19 is in the shape of an isosceles trapezoid, the upper part of the clamping seat 18 is provided with a clamping inclined surface 22 inclined to the clamping space, and the inclined surface of the support 19 and the inclined surface of the clamping seat 18 form an adjustable clamping space.

[0032] In the embodiment, the middle part of the support 19 is in the shape of an isosceles trapezoid, the upper part of the clamping seat 18 is provided with a clamping inclined surface 22 inclined to the clamping space, and the inclined surface of the support 19 and the inclined surface of the clamping seat 18 form an adjustable clamping space.

[0033] The clamping mechanism realizes self-adaptive clamping of the pipeline through the reverse thread screw rod structure, ensures the stability of the pipeline during lifting, the sliding block 16 and the adjusting groove adopt gap cooperation (the cooperation gap is ≤0.5mm), the sliding block 16 and the adjusting groove avoid radial shaking while ensuring smooth sliding, the clamping seat 18 is fixed on the top of the sliding block 16, the inner side is an arc clamping surface, the surface is pasted with a non-slip rubber pad, the clamping width can be adjusted through the driving of the screw rod, and different pipeline diameters can be adapted.

[0034] In the embodiment, the middle part of the support 19 is in the shape of an isosceles trapezoid, the upper part of the clamping seat 18 is provided with a clamping inclined surface 22 inclined to the clamping space, and the inclined surface of the support 19 and the inclined surface of the clamping seat 18 form an adjustable clamping space.

[0035] Specifically, the propulsion assembly includes a propulsion roller 23 and a drive motor 15. The propulsion roller 23 is mounted on the clamping seat, its arrangement direction is adapted to the clamping space, and it protrudes from the clamping space. The drive motor 15 is driven by the propulsion roller 23. There are two sets of propulsion rollers 23, and the drive motor 15 is driven by the two propulsion rollers 23 through a belt 24. The surface of the propulsion roller 23 is covered with a rubber layer. The propulsion rollers 23 are arranged symmetrically in two sets, installed parallel to each other on the clamping seat, and the roller surface protrudes 5-10mm from the clamping space to ensure that the pipe can contact the surface of the propulsion roller 23 when it is clamped. The surface of the propulsion roller 23 is covered with a 3mm thick wear-resistant rubber layer, which increases the friction with the pipe (to prevent slippage) and buffers the contact pressure (to prevent scratching the pipe surface). When the pipe passes through the wall opening or the flange, there is no need for manual insertion into the narrow space to push the pipe; precise pushing can be achieved solely by the propulsion assembly. Compared with traditional manual pushing, this is especially suitable for pipe docking operations in narrow spaces such as corridors.

[0036] A distance sensor is installed on the movable seat to measure the distance between the lifting device and the construction surface. The adjusting rod is a telescopic cylinder, and corresponding hinge seats are provided on the first swing frame 9 and the center seat 13. The two ends of the telescopic cylinder are hinged to the hinge seats. A driven roller is provided on the support 19. The driven roller rotates synchronously with the pipe to avoid friction damage between the pipe and the support 19.

[0037] The propulsion component is an auxiliary structure designed for precise alignment scenarios such as pipes passing through openings and connecting flanges. It can replace manual labor to push the pipe to complete the final alignment, reducing manpower consumption and improving efficiency.

[0038] This implementation integrates the propulsion, lifting, clamping, and angle adjustment mechanisms. The propulsion component pushes the pipe, enabling movement along the X-axis. A distance sensor monitors the distance between the pipe and the construction surface in real time, allowing adjustment along the Y-axis. Pushing automatically stops when a preset value is reached. When the telescopic cylinder adjusts the pipe angle, the propulsion roller 23 and clamping seat 18 work together. The clamping seat 18 provides radial fixation, while the propulsion roller 23 provides axial thrust. Together, they achieve stable pipe pushing and precise alignment. This collaborative design upgrades the device from mechanical assistance to semi-automated operation, further reducing reliance on manual labor and improving construction efficiency. The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention is to realize the propulsion and transportation of pipelines at different angles through angle, propulsion, and distance sensors, thereby achieving rapid pipeline installation and construction, simplifying construction steps, improving construction efficiency, and reducing construction difficulty. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An auxiliary lifting device for indoor pipe installation, characterized in that: It includes a lifting mechanism, an angle adjustment mechanism, and a clamping mechanism; the lifting mechanism includes a movable base, movable wheels, a lifting seat, and a lifting assembly; the bottom of the movable base is provided with movable wheels, and the upper part is provided with a lifting assembly along the vertical direction; the lifting seat is installed on the lifting assembly to realize its vertical lifting movement. The angle adjustment mechanism includes a central frame, a first swing frame, a second swing frame, an adjusting member, and a support. The bottoms of the first and second swing frames are hinged to both sides of the central frame. The central frame is fixed vertically in the middle of the lifting seat. The two ends of the adjusting member are hinged between the central frame and the first or second swing frame. A central seat is hinged to the upper part of the central frame. Swing seats are hinged to the upper parts of both the first and second swing frames. A telescopic sleeve rod adapted for use is provided between the central seat and the swing seats on both sides. The support is fixed to the center of the swing seats on both sides. The clamping assembly includes an adjusting screw, a slider, and a clamping seat; an adjusting groove is provided along the length direction at the upper center of the central seat; the adjusting screw has a reverse thread structure and is rotatably assembled in the adjusting groove, with one end connected to the drive unit; the slider is threadedly connected to the two threads of the adjusting screw and is fitted into the adjusting groove; the clamping seat is fixed to the upper part of the slider and forms a clamping space, the center of which corresponds to the center of the support.

2. The auxiliary lifting device for indoor pipe installation according to claim 1, characterized in that: The middle part of the support is in the shape of an isosceles trapezoid, and the upper part of the clamping seat is provided with a clamping inclined surface that is inclined towards the clamping space. The inclined surface of the support and the inclined surface of the clamping seat form an adjustable clamping space.

3. The auxiliary lifting device for indoor pipe installation according to claim 1, characterized in that: The telescopic sleeve includes a sleeve and a sleeve. The sleeve is fixed to the side of the center seat, the sleeve is fixed to the side of the swing seat, and the sleeve is fitted inside the sleeve.

4. The auxiliary lifting device for indoor pipe installation according to claim 1, characterized in that: The lifting assembly includes a lifting frame, a pulley block, a lifting motor, and a lifting seat; the lifting frame is fixed on a movable base, the lifting seat is slidably mounted on both sides of the lifting frame, the lifting motor is fixed on the lifting frame and connected to the lifting seat via the pulley block.

5. The auxiliary lifting device for indoor pipe installation according to claim 4, characterized in that: The lifting seat includes a lifting block and a bracket. The lifting block is slidably mounted on both sides of the lifting frame. The bracket is fixedly assembled on the lifting block. The first swing frame and the second swing frame are respectively hinged to both sides of the bracket. The central frame is fixed in the middle of the bracket.

6. The auxiliary lifting device for indoor pipe installation according to any one of claims 1-5, characterized in that: It also includes a propulsion assembly, which includes a propulsion roller and a drive motor. The propulsion roller is disposed on the clamping seat, its arrangement direction is adapted to the clamping space, and it protrudes out of the clamping space. The drive motor is connected to the propulsion roller for transmission.

7. The auxiliary lifting device for indoor pipe installation according to claim 6, characterized in that: The push rollers are provided in two sets, and the drive motor is connected to the two push rollers via a belt. The surface of the push rollers is provided with a rubber layer.

8. The auxiliary lifting device for indoor pipe installation according to claim 6, characterized in that: The movable base is equipped with a distance sensor for measuring the distance between the lifting device and the construction surface.

9. The auxiliary lifting device for indoor pipe installation according to claim 8, characterized in that: The adjusting rod is a telescopic cylinder, and corresponding hinge seats are provided on the first swing frame and the center seat. The two ends of the telescopic cylinder are hinged to the hinge seats.

10. The auxiliary lifting device for indoor pipe installation according to claim 6, characterized in that: The support is equipped with a driven roller.

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