Hoisting equipment for concrete pole production and processing

By incorporating arc-shaped clamps, end-limiting mechanisms, and hydraulic cylinder drives into the hoisting equipment, the problem of unstable clamping during concrete pole hoisting was solved, achieving higher stability and safety, and extending the service life of the equipment.

CN224226492UActive Publication Date: 2026-05-12JIANGXI YUMU ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI YUMU ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2025-08-20
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing hoisting equipment used for the production and processing of concrete poles lacks sufficient clamping stability during the hoisting process, which can easily cause the concrete poles to shift from both ends of the hoisting equipment, posing a safety hazard.

Method used

A lifting device including an arc-shaped clamp and an end limiting mechanism is designed. The arc-shaped clamp is connected by a telescopic drive assembly. The end limiting mechanism consists of a first fixed rod and a second fixed rod. The engaging block cooperates with the engaging groove to enhance clamping stability. The reinforcing rib enhances the structural strength, the elastic sealing gasket improves the sealing performance, the hydraulic cylinder controls the opening and closing of the clamp, the triangular rigid bracket provides stable support, and the damping shock absorber reduces vibration.

Benefits of technology

It improves clamping stability, enhances structural strength and sealing performance, reduces safety hazards, ensures the smoothness and safety of the hoisting process, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses hoisting equipment for producing and processing concrete poles, which relates to the technical field of concrete poles and is technically characterized by comprising a hoisting tool, the hoisting tool comprises a movable frame connected with a hoisting part of a travelling crane or a crane, a mounting frame is arranged at the bottom of the movable frame through a stabilizing frame, and arc-shaped clamping plates are hinged to two sides of the mounting frame. A plurality of telescopic driving assemblies are hinged to the outer walls of the arc-shaped clamping plates, the other ends of the telescopic driving assemblies are hinged to the stabilizing frame, and an end limiting mechanism is arranged between the two ends of the two arc-shaped clamping plates; when the two arc-shaped clamping plates are closed, a cylindrical containing cavity used for containing the concrete electric pole is formed, and meanwhile the end limiting mechanism completes combination to conduct end limiting. The clamping stability can be further improved, and potential safety hazards are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of concrete pole technology, and in particular to a hoisting device for the production and processing of concrete poles. Background Technology

[0002] Concrete poles, widely used as supporting structures in power transmission and communication lines, occupy a crucial position in power infrastructure construction and communication network layout due to their significant advantages such as high strength, durability, and relatively low cost. They are typically constructed by reinforcing steel as a framework and then pouring concrete. This composite structure allows concrete poles to withstand significant tensile, compressive, and bending moments, effectively ensuring the stable operation of power and communication lines in various complex environments. Whether among urban skyscrapers, in rural fields, or in remote mountainous areas, concrete poles provide solid support for power and communication transmission with their reliable performance, making them an indispensable part of modern social infrastructure.

[0003] In the production and processing of concrete utility poles, hoisting equipment is an indispensable and crucial component. Due to the large size and heavy weight of concrete poles, specialized hoisting equipment is essential for their safe and efficient handling at every stage, from molding and curing on the production line to subsequent transportation and installation. This hoisting equipment typically possesses powerful lifting capabilities and can be flexibly adjusted according to the different specifications and weights of the concrete poles. Furthermore, to adapt to the spatial layout of production workshops and different operating scenarios, hoisting equipment also features diverse structural forms. For example, bridge cranes can move horizontally and lift vertically above the workshop, while gantry cranes are suitable for operations in areas with large spans. Through precise control systems and reliable mechanical structures, hoisting equipment can accurately transport concrete poles to designated locations, greatly improving production efficiency and reducing the labor intensity and safety risks associated with manual handling.

[0004] However, the clamping stability of existing hoisting equipment used in the production and processing of concrete poles still needs further improvement during the hoisting process. In actual operation, the clamping is not stable enough, and the lack of limiting components at both ends of the hoisting equipment makes the concrete poles prone to displacement from both ends of the hoisting equipment, leading to safety hazards. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a hoisting equipment for the production and processing of concrete poles, which further improves the clamping stability and reduces safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A hoisting device for producing and processing concrete poles includes a lifting device. The lifting device includes a movable frame connected to the lifting part of a trolley or crane. A mounting frame is provided at the bottom of the movable frame via a stabilizing frame. Arc-shaped clamps are hinged to both sides of the mounting frame. Multiple telescopic drive components are hinged to the outer wall of the arc-shaped clamps. The other end of each telescopic drive component is hinged to the stabilizing frame. An end-limiting mechanism is provided between the two ends of the two arc-shaped clamps. When the two arc-shaped clamps are closed, they form a cylindrical receiving cavity for accommodating the concrete pole. At the same time, the end-limiting mechanism completes the combination to limit the end position.

[0008] Preferably, the end limiting mechanism includes multiple first fixing rods fixedly connected to one end of the arc-shaped clamping plate, and the bottom of the other end of the first fixing rod is provided with a locking groove. Multiple second fixing rods are fixedly connected to the other end of the arc-shaped clamping plate, and the other end of the second fixing rod is provided with a locking block adapted to the locking groove. When the locking block engages with the locking groove, the multiple first fixing rods and the second fixing rods form a fence for blocking the end of the receiving cavity.

[0009] Preferably, the first fixing rod and the second fixing rod are fixedly connected to the side away from the receiving cavity with reinforcing ribs.

[0010] Preferably, an elastic sealing gasket is adhered to the inner wall of the engagement groove.

[0011] Preferably, the inner wall of the arc-shaped clamp is coated with an anti-slip coating.

[0012] Preferably, the telescopic drive assembly is a hydraulic cylinder.

[0013] Preferably, the stabilizer is composed of multiple triangular rigid supports.

[0014] Preferably, the bottom of the rigid bracket is fixedly connected to the top of the mounting bracket by multiple damping shock absorbers.

[0015] This utility model has the following beneficial effects:

[0016] I. Improved Clamping Stability: This utility model effectively improves clamping stability by setting an end limiting mechanism. In the prior art, the lifting device lacks limiting components at both ends, making it easy for concrete poles to shift from both ends of the lifting device, posing a safety hazard. In this utility model, an end limiting mechanism is set between the two ends of the two arc-shaped clamping plates. When the two arc-shaped clamping plates close to form a cylindrical receiving cavity to accommodate the concrete pole, the end limiting mechanism completes the assembly and limits the end position. Specifically, the end limiting mechanism includes multiple first fixing rods fixedly connected to one end of the arc-shaped clamping plates. The bottom of the other end of the first fixing rod is provided with a locking groove. Multiple second fixing rods are fixedly connected to the end of the other arc-shaped clamping plate. The other end of the second fixing rod is provided with a locking block adapted to the locking groove. When the locking block engages with the locking groove, the multiple first fixing rods and the second fixing rods form a barrier to block the end of the receiving cavity, thereby preventing the concrete pole from shifting from both ends, greatly improving clamping stability and reducing safety hazards.

[0017] II. Enhanced Structural Strength: Reinforcing ribs are fixedly connected to the sides of the first and second fixed rods away from the receiving cavity. This design enhances the structural strength of the end-limiting mechanism. During hoisting, the end-limiting mechanism needs to withstand the weight of the concrete pole and various external forces that may arise. The reinforcing ribs allow the first and second fixed rods to better withstand these forces, preventing deformation or damage, thus ensuring the stability and reliability of the end-limiting mechanism and consequently guaranteeing the safe operation of the entire hoisting equipment.

[0018] III. Enhanced Sealing and Anti-slip Performance: An elastic sealing gasket is bonded to the inner wall of the locking groove, a design that improves the sealing performance of the end-positioning mechanism. When the locking block engages with the locking groove, the elastic sealing gasket fills the gap between them, making the engagement tighter and preventing external factors (such as dust and rainwater) from affecting the engagement effect during hoisting, further enhancing the stability of the end-positioning. Simultaneously, the inner wall of the arc-shaped clamp is coated with an anti-slip coating, increasing the friction between the arc-shaped clamp and the concrete pole, preventing the concrete pole from sliding during hoisting, and improving the reliability of the clamping.

[0019] IV. Optimized Drive and Stabilization Structure: The telescopic drive component is a hydraulic cylinder, which boasts advantages such as strong power, smooth operation, and high control precision. During hoisting, the hydraulic cylinder accurately controls the opening and closing of the arc-shaped clamping plate, achieving stable clamping and safe lifting of the concrete pole. The stabilization frame consists of multiple triangular rigid supports. Triangles provide stability, and the stabilization frame composed of multiple triangular rigid supports provides stable support for the installation frame, ensuring the stability of the hoisting equipment during operation. The bottom of the rigid supports is fixedly connected to the top of the installation frame through multiple damping shock absorbers. These damping shock absorbers absorb and mitigate vibrations generated during the operation of the hoisting equipment, reducing the impact of vibrations on the equipment, extending its service life, and improving the safety and stability of the hoisting process. These components work together to form a unique combined effect, comprehensively improving the performance of the hoisting equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of the first embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of the end limiting mechanism of the first embodiment of the present utility model.

[0023] Figure 3 This is a side view of the second embodiment of the present invention.

[0024] In the diagram: 1. Movable frame; 2. Stabilizing frame; 3. Mounting frame; 4. Arc-shaped clamp; 5. Telescopic drive assembly; 601. First fixing rod; 602. Second fixing rod; 604. Clamping block; 605. Reinforcing rib; 606. Elastic sealing gasket; 7. Damping shock absorber. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] First embodiment

[0027] like Figures 1 to 2 As shown, a hoisting device for producing and processing concrete poles includes a hoisting device. The hoisting device includes a movable frame 1 connected to the lifting part of a trolley or crane. A mounting frame 3 is provided at the bottom of the movable frame 1 via a stabilizing frame 2. Arc-shaped clamping plates 4 are hinged to both sides of the mounting frame 3. Multiple telescopic drive components 5 are hinged to the outer wall of the arc-shaped clamping plates 4. The other end of the telescopic drive components 5 is hinged to the stabilizing frame 2. An end limiting mechanism is provided between the two ends of the two arc-shaped clamping plates 4. When the two arc-shaped clamping plates 4 are closed, they form a cylindrical receiving cavity for accommodating the concrete pole. At the same time, the end limiting mechanism completes the combination to limit the end position.

[0028] like Figures 1 to 2 As shown, the movable frame 1 of the lifting device is connected to the lifting section of a trolley or crane, enabling the lifting device to achieve overall lifting, moving, and other operations using the power of the trolley or crane. A mounting frame 3 is mounted on the bottom of the movable frame 1 via a stabilizing frame 2. The stabilizing frame 2 provides stable support, transferring the force of the movable frame 1 to the mounting frame 3, ensuring the stability of the entire lifting device structure and providing a reliable support foundation for subsequent clamping operations. Arc-shaped clamping plates 4 are hinged to both sides of the mounting frame 3. Multiple telescopic drive components 5 are hinged to the outer wall of the arc-shaped clamping plates 4, and the other end of each telescopic drive component 5 is hinged to the stabilizing frame 2. When the telescopic drive component 5 extends or retracts, because its two ends are hinged to the arc-shaped clamping plates 4 and the stabilizing frame 2 respectively, according to the motion characteristics of the hinged structure, the extension or retraction of the telescopic drive component 5 will cause the arc-shaped clamping plates 4 to rotate around the hinge point with the mounting frame 3. When the telescopic drive component 5 extends, it pushes the arc-shaped clamping plates 4 outward; when the telescopic drive component 5 retracts, it pulls the arc-shaped clamping plates 4 inward.

[0029] When the two arc-shaped clamping plates 4 are closed, they form a cylindrical cavity to accommodate the concrete pole. During hoisting operations, the lifting equipment is first moved above the concrete pole using a crane or overhead crane. Then, the telescopic drive assembly 5 is controlled to retract, causing the two arc-shaped clamping plates 4 to gradually close, enclosing the concrete pole within the cylindrical cavity. At this point, the inner wall of the arc-shaped clamping plates 4 contacts the surface of the concrete pole, and the initial clamping of the concrete pole is achieved through the friction between the two and the enveloping force of the arc-shaped clamping plates 4. An end-limiting mechanism is provided between the two ends of the two arc-shaped clamping plates 4. As the arc-shaped clamping plates 4 close to form the cylindrical cavity, the end-limiting mechanism completes its assembly and performs end-limiting. Specifically, the end-limiting mechanism is usually composed of mutually cooperating components. For example, the engaging structure on one arc-shaped clamping plate 4 engages with the corresponding engaging structure on the other arc-shaped clamping plate 4, forming a fence-like structure that blocks the end of the cavity. This prevents the concrete pole from slipping out of the cylindrical cavity during hoisting due to swaying or external forces, further enhancing the stability and safety of the clamping and ensuring that the concrete pole can be safely and stably hoisted to the designated location.

[0030] like Figures 1 to 2 As shown, the end-limiting mechanism consists of multiple first fixing rods 601 fixedly connected to one end of the arc-shaped clamping plate 4 and multiple second fixing rods 602 fixedly connected to the end of the other arc-shaped clamping plate 4. The bottom of the other end of each first fixing rod 601 has a locking groove, and the other end of each second fixing rod 602 has a locking block 604 adapted to the locking groove. When the arc-shaped clamping plate 4 closes to form a cylindrical cavity for accommodating the concrete pole, the locking block 604 of the second fixing rod 602 will embed into the locking groove of the first fixing rod 601, achieving locking. At this time, the multiple first fixing rods 601 and second fixing rods 602 cooperate with each other to form a fence structure at the end of the cavity, effectively blocking the concrete pole and preventing it from sliding out of the cavity due to shaking, external forces, or other factors during hoisting, thus ensuring the safety and stability of the hoisting.

[0031] like Figures 1 to 2 As shown, reinforcing ribs 605 are fixedly connected to the sides of the first fixing rod 601 and the second fixing rod 602 away from the receiving cavity. During the hoisting process, the end limiting mechanism needs to withstand the weight of the concrete pole and various external forces that may be generated. The reinforcing ribs 605 can enhance the mechanical strength and rigidity of the first fixing rod 601 and the second fixing rod 602, making them less prone to bending, deformation or breakage under stress, thereby ensuring that the end limiting mechanism can stably play its blocking role, and further improving the safety and reliability of the hoisting equipment.

[0032] like Figures 1 to 2 As shown, an elastic sealing gasket 606 is bonded to the inner wall of the engagement groove. When the engagement block 604 engages with the engagement groove, the elastic sealing gasket 606 is compressed, filling the gap between the engagement block 604 and the engagement groove. This enhances the tightness of the engagement and prevents loosening due to vibration, shaking, or other factors during hoisting. Simultaneously, the elastic sealing gasket 606 also acts as a buffer, reducing the impact force between the engagement block 604 and the engagement groove, and extending the service life of the end limiting mechanism. Furthermore, it prevents dust, rainwater, and other external substances from entering the engagement area, avoiding impurities affecting the engagement effect and ensuring the normal operation of the end limiting mechanism.

[0033] like Figures 1 to 2 As shown, the inner wall of the arc-shaped clamping plate 4 is coated with an anti-slip coating. When the arc-shaped clamping plate 4 closes to clamp the concrete pole, the anti-slip coating increases the friction between the inner wall of the arc-shaped clamping plate 4 and the surface of the concrete pole. This increased friction effectively prevents the concrete pole from sliding relative to the arc-shaped clamping plate 4 during hoisting, thereby improving the stability of the clamping and ensuring that the concrete pole can be hoisted safely and smoothly.

[0034] like Figures 1 to 2As shown, the telescopic drive assembly 5 is a hydraulic cylinder. A hydraulic cylinder is a device that uses liquid pressure to transmit power, featuring strong power, smooth operation, and high control precision. In hoisting equipment, the telescopic movement of the hydraulic cylinder can be achieved by controlling the oil inlet and outlet of the hydraulic cylinder. When it is necessary to close the arc-shaped clamping plate 4 to hold the concrete pole, the hydraulic cylinder is controlled to retract, pulling the arc-shaped clamping plate 4 to rotate around the hinge point, causing the two arc-shaped clamping plates 4 to gradually approach and eventually close; when it is necessary to release the concrete pole, the hydraulic cylinder is controlled to extend, pushing the arc-shaped clamping plate 4 to open outward. The precise control of the hydraulic cylinder ensures the accurate opening and closing degree of the arc-shaped clamping plate 4, achieving safe and stable clamping and release of the concrete pole.

[0035] like Figures 1 to 2 As shown, the stabilizing frame 2 is composed of multiple triangular rigid supports. Triangles possess stability based on their geometric properties; their three sides support each other, making them less prone to deformation under external forces. The stabilizing frame 2, composed of multiple triangular rigid supports, evenly distributes the force transmitted from the movable frame 1, providing stable support for the installation frame 3. This ensures that the entire lifting device will not sway or tilt during the lifting process, thereby ensuring that the arc-shaped clamp 4 can accurately hold the concrete pole, improving the accuracy and safety of the lifting operation.

[0036] Second embodiment

[0037] like Figure 3 As shown, the bottom of the rigid support is fixedly connected to the top of the mounting frame 3 via multiple damping shock absorbers 7. During the operation of the hoisting equipment, vibrations are inevitable. These vibrations may originate from the operation of the overhead crane or gantry crane, the movement of the hydraulic cylinder, and the lifting and placement of the concrete pole. The damping shock absorbers 7 can absorb and mitigate the energy generated by these vibrations, converting them into heat or other forms of energy that are dissipated. Through the action of the damping shock absorbers 7, the impact of vibrations on various components of the hoisting equipment can be reduced, fatigue damage to components can be decreased, and the service life of the equipment can be extended. Simultaneously, it can improve the stability of the hoisting process, making the concrete pole safer and more stable during hoisting. In this embodiment, the damping shock absorber 7 is a viscous damping shock absorber 7.

[0038] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A hoisting device for the production and processing of concrete utility poles, comprising a hoisting tool, characterized in that: The lifting device includes a movable frame (1) connected to the lifting part of a trolley or crane. The bottom of the movable frame (1) is provided with a mounting frame (3) through a stabilizing frame (2). The mounting frame (3) has arc-shaped clamps (4) hinged on both sides. Multiple telescopic drive components (5) are hinged to the outer wall of the arc-shaped clamps (4). The other end of the telescopic drive components (5) is hinged to the stabilizing frame (2). An end limiting mechanism is provided between the two ends of the two arc-shaped clamps (4). When the two arc-shaped clamps (4) are closed, they form a cylindrical receiving cavity for accommodating concrete poles. At the same time, the end limiting mechanism completes the combination to limit the end.

2. The hoisting equipment for producing and processing concrete utility poles according to claim 1, characterized in that: The end limiting mechanism includes multiple first fixing rods (601) fixedly connected to one end of the arc-shaped clamp (4). The bottom of the other end of the first fixing rod (601) is provided with a locking groove. Multiple second fixing rods (602) are fixedly connected to the other end of the arc-shaped clamp (4). The other end of the second fixing rod (602) is provided with a locking block (604) that is adapted to the locking groove. When the locking block (604) engages with the locking groove, the multiple first fixing rods (601) and the second fixing rods (602) form a fence to block the end of the receiving cavity.

3. The hoisting equipment for producing and processing concrete poles according to claim 2, characterized in that: The first fixing rod (601) and the second fixing rod (602) are fixedly connected to the side away from the receiving cavity by reinforcing ribs (605).

4. The hoisting equipment for producing and processing concrete utility poles according to claim 3, characterized in that: An elastic sealing gasket (606) is bonded to the inner wall of the engagement groove.

5. The hoisting equipment for producing and processing concrete utility poles according to claim 1, characterized in that: The inner wall of the arc-shaped clamp (4) is coated with an anti-slip coating.

6. The hoisting equipment for producing and processing concrete utility poles according to claim 1, characterized in that: The telescopic drive assembly (5) is configured as a hydraulic cylinder.

7. The hoisting equipment for producing and processing concrete utility poles according to claim 1, characterized in that: The stabilizer (2) is composed of multiple triangular rigid supports.

8. The hoisting equipment for producing and processing concrete utility poles according to claim 7, characterized in that: The bottom of the rigid support is fixedly connected to the top of the mounting bracket (3) by multiple damping shock absorbers (7).