Drainage pipeline hoisting mechanism for municipal construction
By adjusting the center of gravity of the precast concrete pipe using hydraulic grippers and rollers, the problems of instability during hoisting and inconvenience in rope operation were solved, achieving efficient and stable pipe hoisting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JIANDE WASTEWATER TREATMENT CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
In current municipal construction, the hoisting of precast cement pipes is unstable, prone to swaying and deviation, and the ropes are difficult to untie and pull out, which can easily damage the pipes.
It adopts a hydraulic gripper and roller structure, which clamps the pipe with hydraulic grippers and uses axial rollers and drive rollers to adjust the center of gravity to achieve stable hoisting.
It improved the stability and efficiency of hoisting, reduced the time spent on tying ropes and disassembling, and prevented damage to pipelines.
Smart Images

Figure CN224147534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline construction technology, and in particular to a drainage pipeline hoisting mechanism for municipal construction. Background Technology
[0002] Urban drainage systems are engineering facilities systems for treating and discharging urban sewage and rainwater. They are an integral part of urban public utilities. Drainage pipes refer to the systems composed of pipes and channels that collect and discharge sewage, wastewater, and rainwater, along with their ancillary facilities. As a crucial component of urban infrastructure, municipal drainage pipes promptly remove rainwater from urban surfaces, providing industrial and domestic water supply while preventing urban water pollution. Cement pipes possess high compressive strength and can withstand significant external forces. This makes them widely used in construction projects, especially in situations involving high water or soil pressure. Corrosion resistance: Compared to metal pipes, cement pipes have better corrosion resistance. Due to the stable chemical properties of cement, it is not easily corroded by acids, alkalis, or oxidizing agents, allowing for long-term use in environments containing corrosive substances. Considering pipe cost and lifespan, most existing large-scale municipal drainage pipes are precast cement pipes.
[0003] Precast cement pipes are heavy due to their material and structure. Although they have excellent compressive strength, their seismic resistance and overall strength are poor. During pipe construction, cranes are generally used to lift large-volume water supply and drainage pipes. Since these pipes are cylindrical, workers need to use ropes to wrap around them, and the crane hook lifts the pipes for laying. This requires a high degree of precision in adjusting the pipe's center of gravity, resulting in poor lifting stability and a tendency to sway and deviate, necessitating extensive manual adjustments. If bumps or impacts occur, the pipes are easily damaged, even breaking. Furthermore, untying and removing the ropes after lifting is also quite troublesome. Therefore, a more stable drainage pipe lifting mechanism is needed. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a drainage pipe hoisting mechanism for municipal construction, thereby solving the above-mentioned problem.
[0005] To achieve the above objectives, a drainage pipe hoisting mechanism for municipal construction is provided, comprising a hoisting base and lifting rings. Multiple symmetrically arranged lifting rings are fixedly connected to the upper part of the hoisting base. A connecting seat is fixedly connected to the lower center of the hoisting base. A hydraulic base is fixedly connected to the lower inner side of the connecting seat. A clamping hydraulic cylinder is fixedly connected to the upper part of the hydraulic base. A lifting slider is slidably connected to the lower part of the hydraulic base. Connecting rods are rotatably connected to both sides of the lower part of the lifting slider. Lifting grooves are provided on both sides of the lower part of the hydraulic base. A clamping seat is fixedly connected to the bottom of the hydraulic base. Hydraulic grippers are rotatably connected to both sides of the lower part of the clamping seat.
[0006] Multiple axial rollers are equidistantly arranged on the inner sides of the two hydraulic grippers. Two drive rollers are arranged below the gripping seat. A roller shaft is arranged at the center of the two drive rollers. A hydraulic pump is fixedly connected to the upper interior of the gripping seat. A drive gear is fixedly connected to the output end of the hydraulic pump. A driven gear is fixedly sleeved at the middle of the roller shaft at a position corresponding to the drive gear.
[0007] According to the aforementioned municipal construction drainage pipe hoisting mechanism, the ends of the two connecting rods away from the lifting slider pass through the lifting groove and are rotatably connected to the upper part of the corresponding hydraulic grippers.
[0008] According to the aforementioned municipal construction drainage pipe hoisting mechanism, the two ends of the roller shaft are fixedly connected to the drive rollers, and the interior of the clamping seat is rotatably connected to the two drive rollers through the roller shaft.
[0009] According to the aforementioned municipal construction drainage pipe hoisting mechanism, the driving gear and the driven gear are both bevel gears of the same specification, and the driving gear and the driven gear mesh with each other.
[0010] According to the aforementioned municipal construction drainage pipe hoisting mechanism, the output end of the hydraulic pump is connected to the roller shaft via a drive gear and a driven gear.
[0011] According to the aforementioned municipal construction drainage pipe hoisting mechanism, multiple triangular connecting plates are fixedly connected to the outer side of the connecting seat, and the tops of the multiple triangular connecting plates are all fixedly connected to the hoisting seat.
[0012] According to the aforementioned municipal construction drainage pipe hoisting mechanism, pin limit seats are provided at the connection points between the clamping seat and the hydraulic gripper on both sides.
[0013] The above solution has at least one of the following beneficial effects:
[0014] This utility model is equipped with hydraulic grippers, which, together with connecting rods and lifting sliders, can form a clamping effect through the clamping hydraulic cylinder. The clamping stability is high, reducing the time for binding ropes and disassembly. At the same time, the axial rollers on the inner side of the hydraulic grippers, together with the drive rollers on the bottom of the clamping seat, can directly adjust the center of gravity of the pipe according to the tilt when lifting the pipe, so that the center of gravity of the pipe is kept in the lifting position, which greatly improves the clamping stability. There is no need to adjust and estimate the center of gravity in advance, which improves the lifting efficiency and enhances the practicality of the device.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a three-dimensional structural diagram of the left side of a drainage pipe hoisting mechanism for municipal construction according to the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the right side of a drainage pipe hoisting mechanism for municipal construction according to the present invention;
[0019] Figure 3 This is a front structural diagram of a drainage pipe hoisting mechanism for municipal construction according to the present invention;
[0020] Figure 4 This is a schematic diagram of the internal structure of the clamping seat of this utility model.
[0021] Legend:
[0022] 1. Lifting base; 2. Lifting ring; 3. Connecting base; 4. Triangular connecting plate; 5. Hydraulic base; 6. Lifting groove; 7. Connecting rod; 8. Clamping hydraulic cylinder; 9. Lifting slider; 10. Clamping base; 11. Hydraulic gripper; 12. Axial roller; 13. Drive roller; 14. Hydraulic pump; 15. Roller shaft; 16. Drive gear; 17. Driven gear; 18. Pin limit seat. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. Preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model. The drawings are all in a very simplified form and use non-precise proportions. They are only used to help to explain the embodiments of the present utility model in a convenient and clear way, and should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-4 This utility model provides a drainage pipe hoisting mechanism for municipal construction, including a hoisting base 1 and lifting rings 2. Multiple symmetrically arranged lifting rings 2 are fixedly connected to the upper part of the hoisting base 1. A connecting base 3 is fixedly connected to the center of the lower part of the hoisting base 1. Multiple triangular connecting plates 4 are fixedly connected to the outer side of the connecting base 3, and the tops of the multiple triangular connecting plates 4 are all fixedly connected to the hoisting base 1. A hydraulic base 5 is fixedly connected to the inner side of the lower part of the connecting base 3. A clamping hydraulic cylinder 8 is fixedly connected to the upper part of the interior of the hydraulic base 5. A lifting slider 9 is slidably connected to the lower part of the hydraulic base 5. Connecting rods 7 are rotatably connected to both sides of the lower part of the lifting slider 9. Lifting grooves 6 are provided on both sides of the lower part of the hydraulic base 5. A clamping seat 10 is fixedly connected to the bottom of the hydraulic base 5. Hydraulic jaws 11 are rotatably connected to both sides of the lower part of the clamping seat 10. Pin limit seats 18 are provided at the connection between the clamping seat 10 and the hydraulic jaws 11 to reduce the pin pressure of the hydraulic jaws 11 and keep the two hydraulic jaws 11 rotating symmetrically. The ends of the two connecting rods 7 away from the lifting slider 9 pass through the lifting grooves 6 and are rotatably connected to the upper part of the corresponding hydraulic jaws 11. The pipe can be clamped by the push of the clamping hydraulic cylinder 8. The clamping stability is high and the time for binding rope and disassembly is reduced.
[0025] Multiple axial rollers 12 are equidistantly arranged on the inner sides of the two hydraulic grippers 11. Two drive rollers 13 are arranged below the gripping base 10. A roller shaft 15 is arranged at the center of the two drive rollers 13. The two ends of the roller shaft 15 are fixedly connected to the drive rollers 13. The inside of the gripping base 10 is rotatably connected to the two drive rollers 13 through the roller shaft 15. A hydraulic pump 14 is fixedly connected to the upper part of the inside of the gripping base 10. A drive gear 16 is fixedly connected to the output end of the hydraulic pump 14. The middle part of the roller shaft 15 is positioned corresponding to the drive gear 16. A driven gear 17 is fixedly sleeved at the position. Both the drive gear 16 and the driven gear 17 are bevel gears of the same specification, and the drive gear 16 and the driven gear 17 mesh with each other. The output end of the hydraulic pump 14 is connected to the roller shaft 15 through the cooperation of the drive gear 16 and the driven gear 17. The hydraulically driven drive roller 13 can directly adjust the center of gravity of the pipe according to the pipe's skew when lifting the pipe, so that the center of gravity of the pipe is kept in the lifting position, which greatly improves the stability of clamping. There is no need to adjust and estimate the center of gravity in advance, which improves the lifting efficiency.
[0026] Working principle: When in use, this utility model is lifted by a crane. The hydraulic gripper 11 at the bottom, together with the connecting rod 7 and the lifting slider 9, can clamp the pipe by pushing the hydraulic cylinder 8. The clamping stability is high, reducing the time for binding ropes and disassembly. At the same time, the axial roller 12 on the inner side of the hydraulic gripper 11, together with the drive roller 13 on the side of the clamping seat 10, can directly adjust the center of gravity of the pipe according to the deviation when lifting the pipe, so that the center of gravity of the pipe is kept in the lifting position, which greatly improves the clamping stability. There is no need to adjust and estimate the center of gravity in advance, thus improving the lifting efficiency.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A municipal construction sewer hoisting mechanism comprising a hoisting seat (1) and a lifting ring (2), characterized in that: Multiple symmetrically arranged lifting rings (2) are fixedly connected to the top of the lifting base (1). A connecting seat (3) is fixedly connected to the center of the bottom of the lifting base (1). A hydraulic base (5) is fixedly connected to the inner side of the bottom of the connecting seat (3). A clamping hydraulic cylinder (8) is fixedly connected to the upper part of the inside of the hydraulic base (5). A lifting slider (9) is slidably connected to the lower part of the inside of the hydraulic base (5). A connecting rod (7) is rotatably connected to both sides of the lower part of the lifting slider (9). A lifting groove (6) is opened on both sides of the lower part of the hydraulic base (5). A clamping seat (10) is fixedly connected to the bottom of the hydraulic base (5). A hydraulic gripper (11) is rotatably connected to both sides of the lower part of the clamping seat (10). Multiple axial rollers (12) are equidistantly arranged on the inner sides of the two hydraulic grippers (11). Two drive rollers (13) are arranged below the gripping seat (10). A roller shaft (15) is arranged at the center of the two drive rollers (13). A hydraulic pump (14) is fixedly connected to the upper part of the gripping seat (10). A drive gear (16) is fixedly connected to the output end of the hydraulic pump (14). A driven gear (17) is fixedly sleeved at the middle part of the roller shaft (15) at the position corresponding to the drive gear (16).
2. The sewer pipe hoisting mechanism for municipal construction according to claim 1, characterized in that, The ends of the two connecting rods (7) away from the lifting slider (9) pass through the lifting groove (6) and are rotatably connected to the upper part of the corresponding hydraulic gripper (11).
3. The sewer pipe hoisting mechanism for municipal construction according to claim 1, characterized in that, The two ends of the roller shaft (15) are fixedly connected to the drive roller (13), and the interior of the clamping seat (10) is rotatably connected to the two drive rollers (13) through the roller shaft (15).
4. The sewer pipe hoisting mechanism for municipal construction according to claim 1, characterized in that, The driving gear (16) and the driven gear (17) are both bevel gears of the same specification, and the driving gear (16) and the driven gear (17) mesh with each other.
5. The sewer pipe hoisting mechanism for municipal construction according to claim 4, characterized by The output end of the hydraulic pump (14) is connected to the roller shaft (15) through the cooperation of the drive gear (16) and the driven gear (17).
6. The sewer pipe hoisting mechanism for municipal construction according to claim 1, characterized in that, Multiple triangular connecting plates (4) are fixedly connected to the outer side of the connecting seat (3), and the top of the multiple triangular connecting plates (4) is fixedly connected to the hoisting seat (1).
7. The sewer pipe hoisting mechanism for municipal construction according to claim 1, characterized in that, Pin limit seats (18) are provided at the connection points between the clamping seat (10) and the hydraulic gripper (11) on both sides.