A slot-type stepless adjustment positioning device for lifting equipment
By designing a slot-type stepless adjustment positioning device, and utilizing a combination of a rotating shaft and a damping spring, the problem of pipe swaying in the lifting equipment was solved, achieving stable pipe fixing and convenient adjustment, thus improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH BUREAU TIANJIN CONSTR ENG CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-30
AI Technical Summary
The existing lifting equipment lacks a dedicated pipeline positioning device, which causes the pipeline to sway easily during the lifting process, requiring secondary adjustments, thus affecting safety and work efficiency.
A slot-type stepless adjustment positioning device was designed, including a base plate, a support assembly, and a limiting assembly. By utilizing a combination structure of a rotating shaft, a limiting rod, and a damping spring, the device achieves stable fixing and stepless adjustment of the pipeline.
It effectively prevents pipe swaying, reduces high-altitude work time, adapts to pipes of different sizes, and improves construction safety and efficiency.
Smart Images

Figure CN224430078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building electromechanical construction, and in particular to a slot-type stepless adjustment and positioning device for lifting equipment. Background Technology
[0002] In building electromechanical construction, the lifting of rows of pipes, such as air ducts and cable trays, typically relies on lifting equipment, such as boom lifts and platform lifts. However, existing lifting equipment generally lacks specialized pipe positioning devices, making it easy for pipes to roll or slip after being placed on the lifting equipment, leading to the following problems:
[0003] The pipeline is unstable during the lifting process and is prone to safety hazards due to shaking.
[0004] After reaching the installation height, the horizontal position of the pipe needs to be adjusted a second time, which increases the time and labor costs of working at height.
[0005] When lifting large-sized ducts or cable trays, traditional positioning structures are prone to interference, affecting the smoothness of the lifting operation.
[0006] Therefore, there is an urgent need for a positioning device that is flexible, easy to install, and can stably fix the pipeline to solve the above-mentioned technical pain points. Utility Model Content
[0007] The purpose of this invention is to provide a slot-type stepless adjustment and positioning device for lifting equipment, which is suitable for fixing the horizontal position during the lifting process of multiple pipelines in a single row. It can reduce the shaking and installation misalignment problems when lifting pipelines in a row, and improve construction safety and efficiency.
[0008] To achieve the above objectives, this utility model provides a slot-type stepless adjustment and positioning device for lifting equipment, including a base plate. Support components are sequentially arranged on the lower surface of the base plate. Several sets of openings are provided through the surface of the support components. A limiting component is connected to the support components through the openings. A fixing component is provided through the upper surface of the base plate. The limiting component includes a rotating shaft that can slide along the openings. One end of the rotating shaft is connected to a limiting rod, and the other end is elastically locked and positioned by cooperating with a nut through a damping spring.
[0009] Preferably, the support assembly includes a first support plate, a second support plate, a third support plate, and a fourth support plate sequentially disposed on the lower surface of the base plate; the openings on the surfaces of the first support plate, the second support plate, the third support plate, and the fourth support plate are all elongated holes; the distance between the first support plate and the second support plate, and the distance between the third support plate and the fourth support plate are the same, and the distance between the second support plate and the third support plate is greater than the distance between the two sets of support plates.
[0010] Preferably, the rotating shaft passes through the support assembly and is cylindrical. A limiting block is fixedly provided in the middle of the rotating shaft. The limiting block is a cuboid structure, and the side length of its cross-section is the same as the diameter of the rotating shaft. The limiting block is located between the second support plate and the third support plate, and the length of the limiting block is less than the distance between the second support plate and the third support plate, so as to allow the limiting block to rotate with the rotating shaft.
[0011] Preferably, one end of the rotating shaft that passes through the first support plate and the second support plate is fixedly connected to the limiting rod, and a T-slot is formed on the surface of the end. The T-slot is located between the first support plate and the second support plate. A limiting pin is slidably connected in the T-slot, and protrusions are fixedly connected to both the upper and lower surfaces of the limiting pin. The vertical length of the T-slot is less than the distance between the first support plate and the second support plate.
[0012] Preferably, the other end of the rotating shaft is fitted with the damping spring, one end of the damping spring is fixedly connected to the first limiting plate, and the other end is fixedly connected to the second limiting plate; the first limiting plate is fitted on the surface of the rotating shaft and can slide, and the second limiting plate is fixedly disposed on the surface of the rotating shaft; the end of the rotating shaft near the damping spring is provided with a threaded section, the threaded section passes through the third support plate and the fourth support plate, and is threadedly connected to the nut.
[0013] Preferably, the width of the rectangular openings on the surfaces of the first and second support plates is the same as the cross-sectional width of the limiting block, so as to restrict the rotation of the rotating shaft and allow it to slide linearly along the openings; the width of the rectangular openings on the surfaces of the third and fourth support plates is the same as the cross-sectional diameter of the rotating shaft; the damping spring is disposed between the third and fourth support plates; and the diameter of the first limiting piece is greater than the width of the opening on the surface of the third support plate.
[0014] Preferably, the limiting rod and the limiting pin are both located on the outer surface of the first support plate, and the nut is located on the outer surface of the fourth support plate; the limiting pin can slide along the vertical section of the T-slot to the horizontal section and abut against the surface of the first support plate to lock the position of the limiting component.
[0015] Preferably, scale stickers are arranged parallel to each other on both sides of the opening on the surface of the first support plate.
[0016] Preferably, the fixing component includes fixing pins located at the four corners of the upper surface of the base plate. The upper end of the fixing pin is provided with a fastening nut, and the lower end passes through the base plate and is used to fix the device to the surface of the lifting equipment.
[0017] Therefore, the present invention employs the above-mentioned slot-type stepless adjustment and positioning device for lifting equipment, which has the following technical effects:
[0018] (1) This application achieves stable fixation through the limiting components on both sides of the pipeline, effectively preventing the pipeline from rolling or shaking during the lifting process and reducing the risk of safety accidents;
[0019] (2) The limiting component in this application supports stepless sliding adjustment, which can adapt to the horizontal positioning requirements of different numbers and sizes of pipes and has wide applicability;
[0020] (3) This application adopts a pin spring locking structure, which does not require complicated tools and can be adjusted and fixed manually, reducing the time spent working at height;
[0021] (4) This application can be bolted to any lifting equipment, and the limit rod can be rotated and stored, which is suitable for lifting operations of large-size air ducts, cable trays and other components.
[0022] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a slot-type stepless adjustment and positioning device for lifting equipment according to this utility model;
[0024] Figure 2 This is a schematic diagram of the limiting component in a slot-type stepless adjustment and positioning device for lifting equipment according to this utility model;
[0025] Figure 3 This is a schematic diagram illustrating the application of a slot-type stepless adjustment and positioning device for lifting equipment according to this utility model.
[0026] Figure Labels
[0027] 1. Base plate; 2. Support assembly; 21. First support plate; 22. Second support plate; 23. Third support plate; 24. Fourth support plate; 3. Opening; 4. Limiting assembly; 41. Rotating shaft; 42. Limiting block; 43. Limiting rod; 44. Limiting pin; 441. Protrusion; 45. T-slot; 46. Nut; 47. Threaded section; 48. Damping spring; 49. First limiting piece; 410. Second limiting piece; 5. Fixing assembly; 51. Fixing pin; 52. Fastening nut; 6. Scale sticker; 7. Pipe. Detailed Implementation
[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0029] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0030] like Figure 1 As shown, a slot-type stepless adjustment positioning device for lifting equipment mainly consists of a base plate 1, a support component 2, a limiting component 4, and a fixing component 5. The base plate 1 serves as the basic load-bearing component of the device. Its lower surface is sequentially provided with the support component 2 for supporting and guiding the limiting component 4, and its upper surface is provided with the fixing component 5 for fixing the device to the lifting equipment. The limiting component 4 is connected to the support component 2 through an opening 3 on the surface of the support component 2, thereby achieving the limiting and fixing of the pipe 7.
[0031] The support assembly 2 includes a first support plate 21, a second support plate 22, a third support plate 23, and a fourth support plate 24 sequentially disposed on the lower surface of the base plate 1. The openings 3 on the surfaces of the first support plate 21 and the second support plate 22 are elongated holes, the width of which is the same as the cross-sectional width of the limiting block 42, to restrict the rotation of the rotating shaft 41 and allow it to slide linearly along the openings 3. The openings 3 on the surfaces of the third support plate 23 and the fourth support plate 24 are also elongated holes, the width of which is the same as the cross-sectional diameter of the rotating shaft 41. The distance between the first support plate 21 and the second support plate 22, and the distance between the third support plate 23 and the fourth support plate 24, are the same, and the distance between the second support plate 22 and the third support plate 23 is greater than the distance between the two sets of support plates. Scale stickers 6 are arranged parallel to each other on both sides of the opening on the surface of the first support plate 21, facilitating precise adjustment of the position of the limiting assembly 4 by the operator.
[0032] like Figure 2As shown, the limiting assembly 4 includes a rotating shaft 41 that can slide along the opening 3. One end of the rotating shaft 41 is connected to a limiting rod 43, and the other end is elastically locked and positioned by a damping spring 48 and a nut 46. The rotating shaft 41 passes through the support assembly 2 and is cylindrical, with a limiting block 42 fixed in the middle. The limiting block 42 is a cuboid structure, and its cross-sectional side length is the same as the diameter of the rotating shaft 41. The limiting block 42 is located between the second support plate 22 and the third support plate 23, and its length is less than the distance between the second support plate 22 and the third support plate 23, so as to allow the limiting block 42 to rotate with the rotating shaft 41.
[0033] The rotating shaft 41 passes through the first support plate 21 and the second support plate 22, and one end is fixedly connected to the limiting rod 43. A T-slot 45 is formed on the surface of this end, located between the first support plate 21 and the second support plate 22. A limiting pin 44 is slidably connected within the T-slot 45. Both the upper and lower surfaces of the limiting pin 44 are fixedly connected to protrusions 441. The vertical length of the T-slot 45 is less than the distance between the first support plate 21 and the second support plate 22. Both the limiting rod 43 and the limiting pin 44 are located on the outer surface of the first support plate 21.
[0034] A damping spring 48 is fitted onto the other end of the rotating shaft 41. One end of the damping spring 48 is fixedly connected to a first limiting plate 49, and the other end is fixedly connected to a second limiting plate 410. The first limiting plate 49 is fitted onto the surface of the rotating shaft 41 and can slide, while the second limiting plate 410 is fixedly mounted on the surface of the rotating shaft 41. A threaded section 47 is provided at the end of the rotating shaft 41 near the damping spring 48. The threaded section 47 passes through the third support plate 23 and the fourth support plate 24 and is threadedly connected to a nut 46, which is located on the outer surface of the fourth support plate 24. The damping spring 48 is located between the third support plate 23 and the fourth support plate 24, and the diameter of the first limiting plate 49 is larger than the width of the opening 3 on the surface of the third support plate 23.
[0035] The fixing component 5 includes fixing pins 51 located at the four corners of the upper surface of the base plate 1. The upper end of the fixing pin 51 is provided with a fastening nut 52, and the lower end penetrates the base plate 1 and is used to fix the device to the surface of the lifting equipment.
[0036] Working principle:
[0037] Installation device: First, install the device on the lifting equipment using the fixing component 5. That is, use the fixing pins 51 at the four corners of the upper surface of the base plate 1 to pass through the base plate 1 and fix it to the surface of the lifting equipment. Then tighten the fastening nut 52 at the upper end of the fixing pin 51 to complete the installation and fixing of the device.
[0038] Place pipe 7: Place pipe 7 on the base plate 1 of the device.
[0039] Adjust the position of pipe 7: Adjust the position of pipe 7 on base plate 1 according to the horizontal installation position of the pipeline.
[0040] Moving limiting component 4: Move the limiting component 4 to both sides of the pipeline along the opening 3 on the surface of the support plate. The operator can refer to the scale stickers 6 on both sides of the opening on the surface of the first support plate 21 to accurately adjust the position of the limiting component 4.
[0041] Rotary limit rod 43: Rotary limit rod 43 is adjusted to the vertical state.
[0042] Pull out the rotating shaft 41: Pull out the rotating shaft 41 so that the T-slot 45 extends from between the first support plate 21 and the second support plate 22 through the opening 3 on the surface of the first support plate 21 to the outer surface of the first support plate 21. At this time, the limiting block 42 passes through between the second support plate 22 and the third support plate 23 into the opening 3 on the surface of the second limiting plate. The second limiting piece 410 moves outward with the rotating shaft 41 and drives the damping spring 48 between the second limiting piece 410 and the first limiting piece 49 to switch to the compressed state.
[0043] Locking limit pin 44: Move the limit pin 44 along the vertical end of the T-slot 45 and lock it into the horizontal section to abut against the surface of the first support plate 21. At this time, under the elastic force of the damping spring 48, the limit pin 44 and the guide rail are tightly engaged, thereby fixing the position of the rotating shaft 41.
[0044] Secondary locking: Tightening the nut 46 at the other end of the rotating shaft 41 forms a secondary lock. Because the limiting block 42 engages within the elongated opening 3 of the second support plate 22, the rotating shaft 41 cannot rotate, and the limiting rod 43 restricts the movement of the pipe 7. Figure 3 As shown.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A slot-type stepless adjustment and positioning device for lifting equipment, characterized in that: The device includes a base plate, on the lower surface of which a support assembly is sequentially provided. The support assembly has several sets of openings through its surface. A limiting assembly is connected to the support assembly through the openings. A fixing assembly is provided through the upper surface of the base plate. The limiting assembly includes a rotating shaft that can slide along the openings. One end of the rotating shaft is connected to a limiting rod, and the other end is elastically locked and positioned by cooperating with a nut through a damping spring.
2. The slot-type stepless adjustment and positioning device for lifting equipment according to claim 1, characterized in that: The support assembly includes a first support plate, a second support plate, a third support plate, and a fourth support plate sequentially disposed on the lower surface of the base plate; the openings on the surfaces of the first support plate, the second support plate, the third support plate, and the fourth support plate are all elongated holes; the distance between the first support plate and the second support plate, and the distance between the third support plate and the fourth support plate are the same, and the distance between the second support plate and the third support plate is greater than the distance between the two sets of support plates.
3. The slot-type stepless adjustment and positioning device for lifting equipment according to claim 2, characterized in that: The rotating shaft passes through the support assembly and is cylindrical. A limiting block is fixed in the middle of the rotating shaft. The limiting block is a cuboid structure, and the side length of its cross-section is the same as the diameter of the rotating shaft. The limiting block is located between the second support plate and the third support plate, and the length of the limiting block is less than the distance between the second support plate and the third support plate, so as to allow the limiting block to rotate with the rotating shaft.
4. A slot-type stepless adjustment and positioning device for lifting equipment according to claim 3, characterized in that: One end of the rotating shaft that passes through the first support plate and the second support plate is fixedly connected to the limiting rod, and a T-shaped groove is formed on the surface of the end. The T-shaped groove is located between the first support plate and the second support plate. A limiting pin is slidably connected in the T-shaped groove. Both the upper and lower surfaces of the limiting pin are fixedly connected with protrusions. The vertical length of the T-shaped groove is less than the distance between the first support plate and the second support plate.
5. A slot-type stepless adjustment positioning device for lifting equipment according to claim 4, characterized in that: The damping spring is sleeved on the other end of the rotating shaft. One end of the damping spring is fixedly connected to the first limiting plate, and the other end is fixedly connected to the second limiting plate. The first limiting plate is sleeved on the surface of the rotating shaft and can slide. The second limiting plate is fixedly disposed on the surface of the rotating shaft. A threaded section is provided on the end of the rotating shaft near the damping spring. The threaded section passes through the third support plate and the fourth support plate and is threadedly connected to the nut.
6. A slot-type stepless adjustment and positioning device for lifting equipment according to claim 5, characterized in that: The rectangular openings on the surfaces of the first and second support plates have the same width as the cross-sectional width of the limiting block, so as to restrict the rotation of the rotating shaft and allow it to slide linearly along the openings; the rectangular openings on the surfaces of the third and fourth support plates have the same width as the cross-sectional diameter of the rotating shaft; the damping spring is disposed between the third and fourth support plates; and the diameter of the first limiting piece is greater than the width of the opening on the surface of the third support plate.
7. A slot-type stepless adjustment and positioning device for lifting equipment according to claim 6, characterized in that: The limiting rod and the limiting pin are both located on the outer surface of the first support plate, and the nut is located on the outer surface of the fourth support plate. The limiting pin can slide along the vertical section of the T-slot to the horizontal section and abut against the surface of the first support plate to lock the position of the limiting component.
8. A slot-type stepless adjustment positioning device for lifting equipment according to claim 7, characterized in that: The first support plate has scale stickers arranged parallel to each other on both sides of the opening on its surface.
9. A slot-type stepless adjustment positioning device for lifting equipment according to claim 1, characterized in that: The fixing component includes fixing pins located at the four corners of the upper surface of the base plate. The upper end of the fixing pin is provided with a fastening nut, and the lower end passes through the base plate and is used to fix the device to the surface of the lifting equipment.