High-altitude lifting machine for purline installation

The purlins are controlled by a drive motor and threaded rod system at the bottom of the tracked machine to move quickly and slowly. Combined with a hydraulic push rod and shock-absorbing piston system to counteract vibration, the problems of speed and accuracy during purlin installation are solved, achieving efficient and safe purlin installation.

CN223983424UActive Publication Date: 2026-03-10CHINA CONSTR THIRD ENG BUREAU GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing aerial work platforms cannot simultaneously guarantee lifting speed and accuracy during purlin installation, and lack vibration damping capabilities, leading to safety hazards.

Method used

The system uses a drive motor and threaded rod system at the bottom of the tracked machine to control the rapid and slow movement of the purlins. Combined with a hydraulic push rod and shock-absorbing piston system to counteract vibrations, the hydraulic push rod controls the rapid lifting and lowering of the loading plate and the slow movement of the threaded rod. With the help of the circular motion of the shock-absorbing piston and the elastic transmission rod, the purlins can be installed efficiently and precisely.

Benefits of technology

It achieves efficient installation speed, precise installation position and stability of purlins, effectively counteracts vibration and impact, and improves the safety and accuracy of purlin installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223983424U_ABST
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Abstract

The utility model belongs to the technical field of purline installation, and particularly relates to a high-altitude lifting machine for purline installation, which comprises a crawler machine, the top of the crawler machine is fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a driving motor, the output end of the top of the driving motor is fixedly connected with a threaded rod, and the output end of the top of the threaded rod is fixedly connected with a screw rod. The top of the bottom plate is fixedly connected with a U-shaped rod located on the outer side of the driving motor and the threaded rod. According to the high-altitude lifting machine for purline installation, a damping piston moves up and down to effectively pull an elastic transmission rod to control an action block to move, the action block conducts reciprocating circular motion on the outer surface of a damping hemisphere under the action of a reset spring, and then vibration impact force is effectively counteracted through centrifugal force of circular motion; therefore, the effect of improving the installation speed, the installation precision and the installation safety of the purline is achieved by ensuring the lifting efficiency, the lifting precision and the lifting stability of the purline.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to purlin installation technical field, concretely relates to a high -altitude lifting machine for purlin installation. BACKGROUND

[0002] Purlin is also called purlin or stringer, which is a horizontal roof beam perpendicular to the roof truss or rafter, used to support the rafter or roof material. Purlin is a transverse bending (usually double bending) member, which is usually designed as a single-span simply supported purlin. Commonly used purlins include solid web type and light steel truss type.

[0003] With the increasing use of purlins, the requirements for purlin installation are also increasing. Now high-altitude lifting machines are often used for purlin installation. However, the lifting speed of the existing high-altitude lifting machines is constant. In order to ensure safety and lifting efficiency, the lifting speed cannot be too fast or too slow. When rapid lifting is required to ensure installation efficiency, the speed cannot be improved. When high-precision slow lifting to the installation position is required, the precision cannot be guaranteed. In addition, the holding structure does not have the function of offsetting the shock buffering force, which greatly affects the safety during the lifting process and poses a great safety hazard. SUMMARY

[0004] The utility model aims at providing a high-altitude lifting machine for purlin installation, which can ensure lifting efficiency and precision and effectively offset the shock impact force during the lifting process of the holding position.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A high-altitude lifting machine for purlin installation, comprising a track machine, the top of the track machine is fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a driving motor, the output end of the top of the driving motor is fixedly connected with a threaded rod, the top of the bottom plate is fixedly connected with a U-shaped rod located outside the driving motor and the threaded rod, the outer surface of the threaded rod is threadedly connected with a threaded plate, the two sides of the threaded plate are slidably sleeved on the outer surface of the U-shaped rod through a limiting ring, the top of the threaded plate is fixedly connected with a connecting rod, the top end of the connecting rod penetrates through the U-shaped rod and is fixedly connected with a hydraulic push rod, the telescopic end of the top of the hydraulic push rod is fixedly connected with a mounting frame, the inner surface of the bottom of the mounting frame is fixedly connected with a stepping motor, the output end of the top of the stepping motor is fixedly connected with a holding plate through a rotating shaft penetrating through the mounting frame, and a holding groove is formed in the top of the holding plate.

[0007] In a preferred embodiment, a shock-absorbing groove is formed on the inner surface of the bottom of the holding tank. A support plate is provided in the holding tank above the shock-absorbing groove. A connecting plate is fixedly connected to the bottom of the support plate. The bottom of the connecting plate is interference-fitted to the inner surface of the shock-absorbing groove via a shock-absorbing piston. The bottom of the shock-absorbing piston is fixedly connected to the inner surface of the bottom of the shock-absorbing groove via two shock-absorbing springs. A shock-absorbing hemisphere is fixedly connected to the inner surface of the bottom of the shock-absorbing groove between the two shock-absorbing springs. An arc-shaped groove is formed on the upper surface of the shock-absorbing hemisphere. An actuating block is slidably connected to the inner surface of the arc-shaped groove. Both sides of the actuating block are fixedly connected to the inner surface of the arc-shaped groove via return springs. An elastic transmission rod is rotatably connected to the top of the actuating block via a first hinge. The top of the elastic transmission rod is rotatably connected to the lower surface of the shock-absorbing piston via a second hinge.

[0008] In a preferred embodiment, symmetrical electric push rods are fixedly connected to the bottom of the base plate, and a stabilizing plate is fixedly connected to the telescopic end of the bottom of the electric push rod.

[0009] In a preferred embodiment, the top of the base plate is fixedly connected to two supporting folding frames located on both sides of the U-shaped rod, and the tops of the two supporting folding frames are fixedly connected to the lower surface of the holding plate.

[0010] In a preferred embodiment, stabilizing rollers are provided on the inner surfaces of both the front and back sides of the holding tank, and rubber wear-resistant pads are provided on the outer surfaces of the stabilizing rollers.

[0011] In a preferred embodiment, the number of stabilizing rollers is not less than ten, and the not less than ten stabilizing rollers are arranged in a rectangular array.

[0012] In a preferred embodiment, the number of damping grooves is not less than five, and the not less than five damping grooves are arranged in a rectangular array.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This invention controls the rapid lifting and lowering of the holding plate by activating a hydraulic push rod, effectively improving installation speed and ensuring lifting efficiency during the initial lifting phase. The drive motor rotates the threaded rod, causing the threaded plate to slowly move upwards under the action of a limit ring. This slow movement of the threaded plate controls the slow upward movement of the holding plate. Furthermore, the threaded transmission controls high-precision movement in the final lifting stage, enhancing safety. A shock-absorbing piston moves vertically when the purlin vibrates. This vertical movement effectively pulls the elastic transmission rod to control the movement of the actuating block. Under the action of a return spring, the actuating block performs reciprocating circular motion on the outer surface of the shock-absorbing hemisphere. The centrifugal force of this circular motion effectively counteracts the vibration impact. Therefore, by ensuring purlin lifting efficiency, accuracy, and stability, this invention improves purlin installation speed, accuracy, and safety. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the holding plate of this utility model from the left side.

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the image.

[0018] Figure 4 This is a top view schematic diagram of the shock-absorbing hemispherical structure of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Tracked conveyor; 2. Base plate; 3. Drive motor; 4. Threaded rod; 5. U-shaped rod; 6. Threaded plate; 7. Limiting ring; 8. Connecting rod; 9. Hydraulic push rod; 10. Mounting frame; 11. Stepper motor; 12. Loading plate; 13. Loading slot; 14. Shock-absorbing slot; 15. Support plate; 16. Connecting plate; 17. Shock-absorbing piston; 18. Shock-absorbing spring; 19. Shock-absorbing hemisphere; 20. Arc-shaped slot; 21. Action block; 22. Return spring; 23. Elastic transmission rod; 24. Electric push rod; 25. Stabilizing plate; 26. Support folding frame; 27. Stabilizing roller. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] Please see the appendix Figures 1-4 As shown, this utility model provides a high-altitude lifting machine for purlin installation, including a tracked machine 1. A base plate 2 is fixedly connected to the top of the tracked machine 1. A drive motor 3 is fixedly connected to the top of the base plate 2. A threaded rod 4 is fixedly connected to the output end of the top of the drive motor 3. A U-shaped rod 5 located outside the drive motor 3 and the threaded rod 4 is fixedly connected to the top of the base plate 2. A threaded plate 6 is threadedly connected to the outer surface of the threaded rod 4. Both sides of the threaded plate 6 are slidably sleeved on the outer surface of the U-shaped rod 5 through limiting rings 7. A connecting rod 8 is fixedly connected to the top of the threaded plate 6. The top end of the connecting rod 8 passes through the U-shaped rod 5 and is fixedly connected to a hydraulic system. The push rod 9 has a mounting frame 10 fixedly connected to its top telescopic end. A stepper motor 11 is fixedly connected to the inner surface of the bottom of the mounting frame 10. The output end of the stepper motor 11 passes through the mounting frame 10 via a rotating shaft and is fixedly connected to a holding plate 12. A holding groove 13 is opened on the top of the holding plate 12. Symmetrical electric push rods 24 are fixedly connected to the bottom of the base plate 2. A stabilizing plate 25 is fixedly connected to the telescopic end of the bottom of the electric push rod 24. Two support folding frames 26 located on both sides of the U-shaped rod 5 are fixedly connected to the top of the base plate 2. The tops of the two support folding frames 26 are fixedly connected to the lower surface of the holding plate 12.

[0026] Furthermore, a shock-absorbing groove 14 is formed on the inner surface of the bottom of the holding tank 13. There are at least five shock-absorbing grooves 14 arranged in a rectangular array. A support plate 15 is provided inside the holding tank 13 above the shock-absorbing grooves 14. A connecting plate 16 is fixedly connected to the bottom of the support plate 15. The bottom of the connecting plate 16 is interference-fitted to the inner surface of the shock-absorbing groove 14 via a shock-absorbing piston 17. The bottom of the shock-absorbing piston 17 is fixedly connected to the inner surface of the bottom of the shock-absorbing groove 14 via two shock-absorbing springs 18. A shock-absorbing hemisphere 19 is fixedly connected to the inner surface of the bottom of the shock-absorbing groove 14, located between the two shock-absorbing springs 18. An arc-shaped groove 20 is formed on the upper surface of the ball 19. An actuating block 21 is slidably connected to the inner surface of the arc-shaped groove 20. Both sides of the actuating block 21 are fixedly connected to the inner surface of the arc-shaped groove 20 by a return spring 22. The top of the actuating block 21 is rotatably connected to an elastic transmission rod 23 through a first hinge. The top of the elastic transmission rod 23 is rotatably connected to the lower surface of the shock-absorbing piston 17 through a second hinge. Stable rollers 27 are provided on the inner surfaces of the front and back sides of the holding tank 13. Rubber wear-resistant pads are provided on the outer surface of the stable rollers 27. There are no fewer than ten stable rollers 27, and the no fewer than ten stable rollers 27 are arranged in a rectangular array.

[0027] The working principle of this utility model is as follows:

[0028] The hydraulic push rod 9 is activated to control the rapid lifting and lowering of the holding plate 12, which effectively improves the installation speed by ensuring lifting efficiency during the initial lifting stage. The drive motor 3 is activated to control the rotation of the threaded rod 4. The rotation of the threaded rod 4 causes the threaded plate 6 to move slowly upward under the action of the limit ring 7. The slow movement of the threaded plate 6 controls the slow upward movement of the holding plate 12. In the final stage of lifting, the threaded transmission controls the high-precision movement, thereby improving safety. The shock-absorbing piston 17 is set to move up and down when the purlin vibrates. The up and down movement of the shock-absorbing piston 17 effectively pulls the elastic transmission rod 23 to control the movement of the action block 21. Under the action of the return spring 22, the action block 21 performs reciprocating circular motion on the outer surface of the shock-absorbing hemisphere 19. The centrifugal force of the circular motion effectively cancels the vibration impact force. Thus, by ensuring the lifting efficiency, lifting accuracy and lifting stability of the purlin, the installation speed, installation accuracy and installation safety of the purlin are improved.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A high-lift purlin mounting machine characterized by: Including track machine (1), the top of track machine (1) is fixedly connected with bottom plate (2), the top of bottom plate (2) is fixedly connected with drive motor (3), the output end of drive motor (3) top is fixedly connected with threaded rod (4), the top of bottom plate (2) is fixedly connected with U-shaped rod (5) located drive motor (3) and threaded rod (4) outside, the outer surface of threaded rod (4) is threadedly connected with threaded plate (6), the both sides of threaded plate (6) are slidably sleeved on the outer surface of U-shaped rod (5) through limiting ring (7), the top of threaded plate (6) is fixedly connected with combination rod (8), the top end of combination rod (8) penetrates U-shaped rod (5) and is fixedly connected with hydraulic push rod (9), the telescopic end of hydraulic push rod (9) top is fixedly connected with mounting frame (10), the inner surface on the bottom of mounting frame (10) is fixedly connected with stepper motor (11), the output end of stepper motor (11) top is fixedly connected with containing plate (12) through the rotation shaft that penetrates mounting frame (10), the top of containing plate (12) is provided with containing groove (13).

2. The high-rise purlin mounting machine according to claim 1, characterized by: The inner surface on the bottom of containing groove (13) is provided with damping groove (14), the containing groove (13) is provided with support plate (15) located above damping groove (14), the bottom of support plate (15) is fixedly connected with combination plate (16), the bottom of combination plate (16) is interference-connected on the inner surface of damping groove (14) through damping piston (17), the bottom of damping piston (17) is fixedly connected with the inner surface on the bottom of damping groove (14) through two damping springs (18), the inner surface on the bottom of damping groove (14) is fixedly connected with damping hemisphere (19) located between the two damping springs (18), the upper surface of damping hemisphere (19) is provided with arc-shaped groove (20), the inner surface of arc-shaped groove (20) is slidably connected with action block (21), the both sides of action block (21) are fixedly connected on the inner surface of arc-shaped groove (20) through return spring (22), the top of action block (21) is rotatably connected with elastic transmission rod (23) through first hinged member, the top end of elastic transmission rod (23) is rotatably connected on the lower surface of damping piston (17) through second hinged member.

3. The high-rise purlin mounting machine according to claim 1, characterized by: The bottom of bottom plate (2) is fixedly connected with symmetrical electric push rod (24), the telescopic end of electric push rod (24) bottom is fixedly connected with stabilizing plate (25).

4. The high-rise purlin mounting machine according to claim 1, characterized by: The top of bottom plate (2) is fixedly connected with two support folding frames (26) located on both sides of U-shaped rod (5), the top of two support folding frames (26) is fixedly connected on the lower surface of containing plate (12).

5. The high-rise purlin mounting machine according to claim 1, characterized by: The inner surface on the front and back of containing groove (13) is provided with stabilizing roller (27), the outer surface of stabilizing roller (27) is provided with rubber wear pad.

6. The high-rise purlin mounting machine according to claim 5, characterized by: The number of stabilizing roller (27) is not less than ten, and the ten stabilizing rollers (27) are arranged in a rectangular array.

7. The high-rise lifting machine for purlin installation according to claim 2, characterized by: The number of said shock-absorbing grooves (14) is not less than five, and the five shock-absorbing grooves (14) are arranged in a rectangular array.