Special lifting appliance for lifting concrete pole
By designing a combined structure for a special lifting tool for cement poles, the problems of slippage and adaptation to different diameters during lifting were solved, thus improving both safety and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUCHANG SIFANG ELECTRIC POWER EQUIPMENT CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing lifting equipment poses a risk of slippage when lifting cement poles and cannot accommodate cement poles of different diameters, leading to increased costs.
A special lifting tool for transporting cement poles was designed. It adopts a combination structure of crossbars, clamps, fixing rings, hooks and protective chains to provide secondary protection. The arc-shaped clamps can be quickly replaced with bolts and nuts to adapt to cement poles of different diameters.
It effectively prevents cement poles from slipping, reduces safety risks during hoisting, and can adapt to cement poles of different diameters without replacing the entire set of lifting equipment, thus reducing costs.
Smart Images
Figure CN224212265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement pole lifting tools, specifically to a special lifting tool for cement pole lifting. Background Technology
[0002] Utility poles serve to support overhead power lines. Common types include wooden poles, concrete poles, and power transmission towers. Concrete poles are made of concrete and reinforced with steel bars or wires, and come in both prestressed and non-prestressed varieties. Specialized lifting equipment is required to transport concrete poles efficiently.
[0003] Existing lifting equipment relies solely on the friction of the curved clamps when hoisting cement poles. The lack of secondary protective structures under the curved clamps poses a risk of the cement poles slipping and falling during transport. Furthermore, existing lifting equipment can only lift circular cement poles of a single diameter; different lifting equipment is required to lift additional sizes, increasing costs. Utility Model Content
[0004] The technical problem this utility model aims to solve is to overcome existing defects and provide a special lifting tool for cement poles. Through the design of crossbars, clamping bars, fixing rings, hooks, and protective chains, when the arc-shaped clamping plate clamps the cement pole for lifting, the protective chain can be bypassed to the underside of the arc-shaped clamping plate and connected to the fixing ring on the other side of the arc-shaped clamping plate. This creates a secondary protective structure on the underside of the cement pole, preventing it from slipping and falling during lifting, and effectively solving the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a special lifting tool for cement poles, including clamping rods, an arc-shaped clamping plate at the lower end of the clamping rods, bolts passing through the arc-shaped clamping plate and the clamping rods, a nut installed at one end of each bolt, fixing posts welded to both sides of the lower part of the clamping rods, an arc-shaped hook connected to the arc-shaped clamping plate on the upper side of each fixing post, a crossbar welded between the two clamping rods on the same side, a fixing ring fixedly connected to the lowermost crossbar, a hook fixedly connected to the crossbar above the fixing ring, and a protective iron chain connected to the fixing ring.
[0006] Furthermore, a lifting ring is welded to the uppermost crossbar between the clamping rods, and a lifting chain is connected to the lifting ring.
[0007] Furthermore, a lifting block is connected to the upper end of the lifting chain, and a rotating shaft is inserted through the rotatable connection position of the clamping rod.
[0008] Furthermore, the crossbar is welded to the fixing ring, and the crossbar is welded to the hook.
[0009] Furthermore, the arc-shaped hook is welded to the arc-shaped clamping plate, and the arc-shaped clamping plate is connected to the clamping rod through the bolt, the nut, the arc-shaped hook, and the fixing post.
[0010] Furthermore, both ends of the protective iron chain are equipped with anti-disengagement hooks.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model, through the setting of crossbars, clamping bars, fixing rings, hooks and protective iron chains, allows the arc-shaped clamping plate to clamp the cement pole for lifting. The protective iron chain can then be bypassed to the underside of the arc-shaped clamping plate and connected to the fixing ring on the other side of the arc-shaped clamping plate. This creates a secondary protective structure with a protective iron chain on the underside of the cement pole, preventing the cement pole from slipping and falling during lifting.
[0013] 2. This utility model, through the setting of arc-shaped clamps, bolts, nuts, arc-shaped hooks and fixing columns, allows the lifting device to only need to replace the arc-shaped clamps with different inner diameters when lifting cement poles of different diameters. The arc-shaped clamps are connected to the poles by bolts, nuts, arc-shaped hooks and fixing columns, without the need to replace the entire lifting device, thus reducing costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the left-side structure of the clamping rod and the arc-shaped clamping plate in this utility model;
[0016] Figure 3 This utility model Figure 1 A magnified structural diagram of point A in the middle.
[0017] In the diagram: 1. Clamping bar; 2. Arc-shaped clamping plate; 3. Lifting chain; 4. Lifting block; 5. Bolt; 6. Nut; 7. Rotating shaft; 8. Fixing column; 9. Arc-shaped hook; 10. Lifting ring; 11. Hook; 12. Protective chain; 13. Fixing ring; 14. Crossbar. Detailed Implementation
[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3This embodiment provides a technical solution: a special lifting tool for hoisting cement poles, including a clamping rod 1, an arc-shaped clamping plate 2 at the lower end of the clamping rod 1, bolts 5 passing through the arc-shaped clamping plate 2 and the clamping rod 1, a nut 6 installed at one end of the bolts 5, fixing posts 8 welded to both sides of the lower part of the clamping rod 1, an arc-shaped hook 9 connected to the arc-shaped clamping plate 2 on the upper side of the fixing post 8, a crossbar 14 welded between the two clamping rods 1 on the same side, a fixing ring 13 fixedly connected to the lowermost crossbar 14, a hook 11 fixedly connected to the crossbar 14 above the fixing ring 13, and a protective iron chain 12 connected to the fixing ring 13.
[0020] like Figure 1-3 As shown, during use, the lifting block 4 is connected to the chain of the lifting equipment. When the lifting equipment lifts the chain upward, it drives the lifting chain 3 upward, causing the two clamping rods 1 to rotate around the rotating shaft 7. This causes the two arc-shaped clamping plates 2 at the lower end of the clamping rods 1 to clamp inward, thus clamping and fixing the cement pole. The weight of the cement pole can be converted into the clamping force and friction force of the arc-shaped clamping plates 2 on the cement pole, thus clamping and fixing the cement pole. When the cement pole is lifted to a certain height, one end of the protective chain 12 is removed from the hook 11 and connected to the fixing ring 13 of the arc-shaped clamping plate 2 on the other side, so that the lower side of the cement pole is protected by the protective chain 12, preventing the cement pole from slipping and causing injury. When replacing the arc-shaped clamping plate 2, the nut 6 and bolt 5 are removed, and the arc-shaped hook 9 on the arc-shaped clamping plate 2 is removed from the fixing column 8. The arc-shaped clamping plate 2 of the required size is replaced and installed, so that the lifting tool does not need to be equipped with multiple lifting tools when lifting cement poles of different diameters, reducing cost investment.
[0021] A lifting ring 10 is welded to the uppermost horizontal bar 14 between the clamping bars 1, and a lifting chain 3 is connected to the lifting ring 10.
[0022] The upper end of the lifting chain 3 is connected to the lifting block 4, and the rotating shaft 7 is inserted through the rotating connection position of the clamping rod 1.
[0023] The crossbar 14 is welded to the fixing ring 13, and the crossbar 14 is welded to the hook 11.
[0024] The arc-shaped hook 9 is welded to the arc-shaped clamp 2, and the arc-shaped clamp 2 is connected to the clamp rod 1 by bolts 5, nuts 6, arc-shaped hook 9 and fixing post 8.
[0025] Both ends of the protective iron chain 12 are equipped with anti-disengagement hooks.
[0026] The working principle of the special lifting tool for hoisting cement poles provided by this utility model is as follows: Figures 1-3As shown, during use, the lifting block 4 is connected to the chain of the lifting equipment. When the lifting equipment lifts the chain upward, it drives the lifting chain 3 upward, causing the two clamping rods 1 to rotate around the rotating shaft 7. This causes the two arc-shaped clamping plates 2 at the lower end of the clamping rods 1 to clamp inward, thus clamping and fixing the cement pole. The weight of the cement pole can be converted into the clamping force and friction force of the arc-shaped clamping plates 2 on the cement pole, thus clamping and fixing the cement pole. When the cement pole is lifted to a certain height, one end of the protective chain 12 is removed from the hook 11 and connected to the fixing ring 13 of the arc-shaped clamping plate 2 on the other side, so that the lower side of the cement pole is protected by the protective chain 12, preventing the cement pole from slipping and causing injury. When replacing the arc-shaped clamping plate 2, the nut 6 and bolt 5 are removed, and the arc-shaped hook 9 on the arc-shaped clamping plate 2 is removed from the fixing column 8. The arc-shaped clamping plate 2 of the required size is replaced and installed, so that the lifting tool does not need to be equipped with multiple lifting tools when lifting cement poles of different diameters, reducing cost investment.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A special lifting tool for hoisting cement poles, including a clamping rod (1), characterized in that: The lower end of the clamping rod (1) is provided with an arc-shaped clamping plate (2), and bolts (5) are passed through the arc-shaped clamping plate (2) and the clamping rod (1). A nut (6) is installed at one end of the bolt (5). Fixing posts (8) are welded to both sides of the lower part of the clamping rod (1). An arc-shaped hook (9) connected to the arc-shaped clamping plate (2) is provided on the upper side of the fixing post (8). A crossbar (14) is welded between the two clamping rods (1) on the same side. A fixing ring (13) is fixedly connected to the lowermost crossbar (14). A hook (11) is fixedly connected to the crossbar (14) on the upper side of the fixing ring (13). A protective iron chain (12) is connected to the fixing ring (13).
2. The special lifting tool for hoisting cement poles according to claim 1, characterized in that: A lifting ring (10) is welded to the uppermost crossbar (14) between the clamps (1), and a lifting chain (3) is connected to the lifting ring (10).
3. The special lifting tool for hoisting cement poles according to claim 2, characterized in that: The upper end of the lifting chain (3) is connected to a lifting block (4), and a rotating shaft (7) is inserted through the rotating connection position of the clamp (1).
4. The special lifting tool for hoisting cement poles according to claim 1, characterized in that: The crossbar (14) is welded to the fixing ring (13), and the crossbar (14) is welded to the hook (11).
5. The special lifting tool for hoisting cement poles according to claim 1, characterized in that: The arc-shaped hook (9) is welded to the arc-shaped clamp (2), and the arc-shaped clamp (2) is connected to the clamp rod (1) by the bolt (5), the nut (6), the arc-shaped hook (9) and the fixing post (8).
6. The special lifting tool for hoisting cement poles according to claim 1, characterized in that: Both ends of the protective iron chain (12) are equipped with anti-disengagement hooks.