Hoisting structure for road construction

Abstract

The utility model relates to the technical field of highway construction, specifically disclose the hoisting structure for highway construction, including fixed box and the two groups L type guide board of sliding setting in fixed box, the both sides of fixed box are opened has the L type guide groove for the cooperation L type guide board and carries out the sliding, one side fixed mounting of L type guide board has the extension chain, the utility model discloses through setting fixed box, L type guide board, L type guide groove, extension chain, the hook and drive assembly, drive assembly drives two groups L type guide board and moves oppositely, drives extension chain and moves, can adjust the length of extension chain according to the pipe of different length, reduces the time of ceaseless calibration, improves the efficiency, when the embedded pipeline is hoisted, both sides hook is under the action of gravity and naturally tightens to the middle, can form the relative tension from the both sides of embedded pipeline, reduces the sway when hoisting, avoids the situation that the embedded pipeline slides down.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, specifically to a hoisting structure used in highway construction. Background Technology

[0002] Lifting structures used in highway construction are key auxiliary equipment, whose core function is to efficiently and safely complete the transfer and installation of various heavy components and materials. During construction, they can precisely lift pre-embedded drainage pipes, crash barriers, and other components, smoothly transport them to the designated construction location, and accurately connect them, significantly reducing the intensity and safety risks of manual handling.

[0003] The existing patent publication number CN221027210U discloses a circular tube lifting clamp, which includes lifting rods and a circular shaft. When clamping a circular tube, two lifting rods that are hinged to the circular shaft and are arranged in a cross-shaped and mirror-like configuration can cooperate to fix and clamp the circular tube. By adjusting the position of the arc-shaped extension plate, when clamping large-sized circular tubes, the position-adjustable arc-shaped extension plate ensures that there is no large gap at the bottom. Pulling the locking pin of the elastic structure outward moves the arc-shaped extension plate inward and outward to the appropriate position. Removing the tension of the locking pin, under the action of the locking pin, the inner end of the locking pin matches the corresponding positioning hole on the arc-shaped extension plate, thus positioning the arc-shaped extension plate.

[0004] In the pipe clamping operation, the above-mentioned device requires the uniform distribution and adjustment of several sets of lifting rods according to the different lengths of the pipe. The entire process is complicated and not only prolongs the preparation time before lifting, but also requires operators to repeatedly calibrate to ensure distribution accuracy, which increases the complexity of the operation. Moreover, after entering the lifting stage, the pipe is prone to shaking due to equipment operation vibration and external airflow interference, which may cause the pipe to slip. In view of the above problems, a lifting structure for highway construction is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a hoisting structure for highway construction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The hoisting structure used for highway construction includes a fixed box and two sets of L-shaped guide plates that are slidably installed inside the fixed box. The fixed box has L-shaped guide grooves on both sides for sliding with the L-shaped guide plates. An extension chain is fixedly installed on one side of the L-shaped guide plate. A hook is fixedly connected to the end of the extension chain away from the L-shaped guide plate. The fixed box is equipped with a drive assembly for driving the two sets of L-shaped guide plates to move relative to each other.

[0008] The drive assembly includes an adjusting toothed plate and a gear. Two sets of adjusting toothed plates are fixedly connected to the side of two sets of L-shaped guide plates that are close to each other. The gear meshes with the two sets of adjusting toothed plates. A moving groove is provided on one side of the fixed box for sliding with the two sets of adjusting toothed plates. A set of rotating rods is rotatably connected in the moving groove. The gears are fixedly connected to the rotating rods. A drive source for driving the rotating rods to rotate is installed on the top of the fixed box.

[0009] The top of the fixed box is equipped with a lifting block, and the fixed box is connected to the lifting block through a connecting assembly.

[0010] In one alternative embodiment: the connecting assembly includes two sets of grooves and a guide chain. The two sets of grooves are formed on the top of the fixed box, and the guide chain is fixedly connected to the bottom of the inner wall of the groove. The end of the guide chain away from the fixed box is hung on the bottom of the lifting block, and the lifting block is provided with a guide hole for sliding with the guide chain.

[0011] In one alternative: two sets of positioning plates are fixedly connected to both sides of the fixed box, and a set of rollers is rotatably connected between the two sets of positioning plates.

[0012] In one alternative: the length of the guide chain is half the length of the extension chain.

[0013] In one alternative: the openings of the two sets of hooks are positioned opposite each other.

[0014] In one alternative: several sets of guide wheels are fixedly installed at the bottom of the L-shaped guide plate, and the guide wheels slide in cooperation with the bottom of the inner wall of the L-shaped guide groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model incorporates a fixed box, L-shaped guide plates, L-shaped guide grooves, an extension chain, hooks, and a drive assembly. The drive assembly drives two sets of L-shaped guide plates to move towards each other, which in turn moves the extension chain. The length of the extension chain can be adjusted according to the length of the circular pipe, reducing the time spent on constant calibration and improving efficiency. When the pre-embedded pipe is lifted, the hooks on both sides naturally tighten towards the middle under the action of gravity, forming a relative pulling force from both sides of the pre-embedded pipe, reducing swaying during lifting and preventing the pre-embedded pipe from slipping.

[0017] This invention, by setting up a connecting component, allows the guide chain to cooperate with the suspension at the bottom of the lifting block, enabling the fixed box to rotate slightly around the lifting block. When there is an angular deviation between the crane and the pipeline, the guide chain can adaptively adjust the tilt angle to avoid the pipeline being clamped and shifted due to hard pulling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural diagram of the location of the guide wheel in this utility model.

[0020] Figure 3 This is a structural diagram of the location of the hook in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure where the gear is located in this utility model.

[0022] In the diagram: 11. Fixed box; 12. L-shaped guide plate; 13. L-shaped guide groove; 14. Extension chain; 15. Hook; 16. Guide wheel; 17. Adjusting toothed plate; 18. Gear; 19. Drive source; 20. Groove; 21. Guide chain; 22. Guide hole; 23. Lifting block; 24. Roller; 25. Positioning plate; 26. Moving groove. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] 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.

[0025] Please see Figures 1-4 In this embodiment, the hoisting structure for highway construction includes a fixed box 11 and two sets of L-shaped guide plates 12 slidably disposed in the fixed box 11. The fixed box 11 has L-shaped guide grooves 13 on both sides for sliding with the L-shaped guide plates 12. An extension chain 14 is fixedly installed on one side of the L-shaped guide plate 12. A hook 15 is fixedly connected to the end of the extension chain 14 away from the L-shaped guide plate 12. The fixed box 11 is provided with a drive assembly for driving the two sets of L-shaped guide plates 12 to move relative to each other.

[0026] The drive assembly includes adjusting gear plates 17 and gears 18. Two sets of adjusting gear plates 17 are fixedly connected to the adjacent sides of two sets of L-shaped guide plates 12. The gears 18 mesh with the two sets of adjusting gear plates 17. A sliding groove 26 is provided on one side of the fixed box 11 for sliding with the two sets of adjusting gear plates 17. A set of rotating rods is rotatably connected within the sliding groove 26. The gears 18 are fixedly connected to the rotating rods. A drive source 19 for driving the rotating rods to rotate is installed on the top of the fixed box 11. When the drive source 19 is activated, it drives the rotating rods to rotate. Rotating within the movable groove 26 drives the gear 18 to rotate. As the gear 18 rotates, the two sets of adjusting tooth plates 17 mesh with the gear 18 and move away from each other within the movable groove 26. The adjusting tooth plates 17 drive the L-shaped guide plate 12 to slide within the L-shaped guide groove 13. The L-shaped guide plate 12 drives the extension chain 14 to move. The two sets of hooks 15 are respectively fastened to both sides of the pre-embedded pipe, which can then be hoisted and moved. This can be adjusted according to the different lengths of the pre-embedded pipe to improve practicality. The relative tension of the extension chain 14 and the hooks 15 is used to fix the pre-embedded pipe, reducing swaying or falling during hoisting.

[0027] The top of the fixed box 11 is provided with a lifting block 23. The fixed box 11 is connected to the lifting block 23 through a connecting assembly. The connecting assembly includes two sets of grooves 20 and a guide chain 21. The two sets of grooves 20 are opened on the top of the fixed box 11. The guide chain 21 is fixedly connected to the bottom of the inner wall of the grooves 20. The end of the guide chain 21 away from the fixed box 11 is hung on the bottom of the lifting block 23. The lifting block 23 is provided with a guide hole 22 for sliding with the guide chain 21. The guide chain 21 and the bottom of the lifting block 23 are suspended to allow the fixed box 11 to rotate slightly around the lifting block 23. When there is an angular deviation between the crane and the pipeline, the guide chain 21 can adaptively adjust the tilt angle to avoid the pipeline being clamped and deviated due to hard pulling.

[0028] Two sets of positioning plates 25 are fixedly connected to both sides of the fixed box 11. A set of rollers 24 is rotatably connected between the two sets of positioning plates 25. An extension chain 14 slides on the rollers 24. By setting the rollers 24, the friction between the extension chain 14 and the fixed box 11 can be reduced during the movement.

[0029] The length of the guide chain 21 is half the length of the extension chain 14, which can prevent the guide chain 21 from being too long and causing it to sag and entangle during hoisting.

[0030] The openings of the two sets of hooks 15 are arranged opposite each other. The two sets of hooks 15 are used to fasten the two sides of the pre-embedded pipe respectively, which can prevent the pre-embedded pipe from slipping when it is moved.

[0031] Several sets of guide wheels 16 are fixedly installed at the bottom of the L-shaped guide plate 12. The guide wheels 16 slide in cooperation with the bottom of the inner wall of the L-shaped guide groove 13. By setting the guide wheels 16, the sliding friction between the L-shaped guide plate 12 and the L-shaped guide groove 13 can be reduced, making the adjustment process smoother.

[0032] In actual operation, the drive source 19 can be a stepper motor, a geared motor, etc.

[0033] The working principle of this utility model is as follows: During use, the lifting block 23 is fixedly connected to the crane cable. The extension chain 14 is adjusted according to the length of the pre-embedded pipe being lifted. The drive source 19 is started, driving the rotating rod to rotate. The rotating rod rotates within the moving groove 26, driving the gear 18 to rotate. As the gear 18 rotates, the two sets of adjusting tooth plates 17 mesh with the gear 18 and move away from each other within the moving groove 26. The adjusting tooth plates 17 drive the L-shaped guide plate 12 to slide within the L-shaped guide groove 13. As the L-shaped guide plate 12 slides, it drives several sets of guide plates... The wheel 16 rolls at the bottom of the inner wall of the L-shaped guide groove 13, reducing friction during movement. The L-shaped guide plate 12 drives the extension chain 14 to move. The two sets of hooks 15 are respectively fastened to both sides of the pre-embedded pipe, which can be used for hoisting and moving. It can be adjusted according to the different lengths of the pre-embedded pipe to improve practicality. At the same time, the two sets of hooks 15 are respectively fastened to both sides of the pre-embedded pipe to prevent the pre-embedded pipe from slipping during movement. The relative tension of the extension chain 14 and the hooks 15 is used to fix the pre-embedded pipe, reducing shaking or falling during hoisting.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A hoisting structure for highway construction, comprising a fixed box (11) and two sets of L-shaped guide plates (12) slidably disposed within the fixed box (11), characterized in that: The fixed box (11) has L-shaped guide grooves (13) on both sides for sliding with L-shaped guide plates (12). An extension chain (14) is fixedly installed on one side of the L-shaped guide plate (12). A hook (15) is fixedly connected to the end of the extension chain (14) away from the L-shaped guide plate (12). The fixed box (11) is provided with a drive assembly for driving the two sets of L-shaped guide plates (12) to move relative to each other. The drive assembly includes an adjusting toothed plate (17) and a gear (18). The two sets of adjusting toothed plates (17) are respectively fixedly connected to the side of the two sets of L-shaped guide plates (12) that are close to each other. The gear (18) meshes with the two sets of adjusting toothed plates (17). A moving groove (26) is provided on one side of the fixed box (11) for sliding with the two sets of adjusting toothed plates (17). A set of rotating rods is rotatably connected in the moving groove (26). The gear (18) is fixedly connected to the rotating rods. A drive source (19) for driving the rotating rods to rotate is installed on the top of the fixed box (11). The top of the fixed box (11) is provided with a lifting block (23), and the fixed box (11) is connected to the lifting block (23) through a connecting component.

2. The hoisting structure for highway construction according to claim 1, characterized in that: The connecting assembly includes two sets of grooves (20) and a guide chain (21). The two sets of grooves (20) are opened on the top of the fixed box (11). The guide chain (21) is fixedly connected to the bottom of the inner wall of the groove (20). The end of the guide chain (21) away from the fixed box (11) is hung on the bottom of the lifting block (23). The lifting block (23) is provided with a guide hole (22) for sliding with the guide chain (21).

3. The hoisting structure for highway construction according to claim 1, characterized in that: Two sets of positioning plates (25) are fixedly connected to both sides of the fixed box (11), and a set of rollers (24) are rotatably connected between the two sets of positioning plates (25).

4. The hoisting structure for highway construction according to claim 2, characterized in that: The length of the guide chain (21) is half the length of the extension chain (14).

5. The hoisting structure for highway construction according to claim 1, characterized in that: The openings of the two sets of hooks (15) are arranged opposite each other.

6. The hoisting structure for highway construction according to claim 1, characterized in that: The bottom of the L-shaped guide plate (12) is fixedly equipped with several sets of guide wheels (16), and the guide wheels (16) slide in cooperation with the bottom of the inner wall of the L-shaped guide groove (13).

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