Cement culvert hoisting device

Abstract

The utility model discloses a cement culvert hoisting device, including chain, both ends of chain all are connected with clamping part, and clamping part includes fixed clamping plate and movable clamping plate, and the interformation clamping groove is used for clamping cement culvert corresponding pipe orifice side edge side, and fixed clamping plate is equipped with adjusting device, is used for drive movable clamping plate to be close to or away from fixed clamping plate, is used for adjusting the spacing of clamping groove, still including the binding device for merging chain. When hoisting, in order to prevent the clamping part from tripping, the central position of chain corresponding cement culvert is merged, and the barycentric position of culvert is found out, and the chain of both sides is combined into one at the position, and is limited through the binding device, and the chain ring is formed on the upper side of the chain combined into one, is used for hoisting device and is fixed, and when hoisting, the stability of clamping part is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering construction equipment, and in particular relates to a cement culvert lifting device. Background Technology

[0002] The watershed ecological management project involves several aspects, including river dredging, rural sewage treatment, landscaping and greening, standardized farmland reconstruction, and urban wall renovation. Rural sewage treatment includes the demolition of old concrete pavements, connection to rural sewage pipe networks, construction of sewage treatment terminals, and road restoration. This requires the demolition of old ditches in rural areas and the construction of new underground cement culverts for sewage pipelines, thereby achieving centralized sewage discharge and treatment and improving environmental conditions.

[0003] The construction of sewage pipe networks involves cleaning existing sewage drainage ditches, removing silt, excavating new trenches, and then laying cement culverts according to the construction plan of the sewage pipe network.

[0004] Cement culverts are concrete structures cast in cement, weighing between 100 and 1000 kg. They require multiple people or lifting machinery to move them to the designated location for installation. Cement culverts are circular pipe structures, lacking lifting stress points, which not only makes lifting unstable and causing damage, but also makes the cement layer at the stress points prone to cracking. Utility Model Content

[0005] The purpose of this invention is to provide a cement culvert lifting device to solve the problem of unstable lifting of existing cement culverts.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A cement culvert lifting device includes a chain, which is formed by interlocking rings;

[0008] Both ends of the chain are connected to clamping components, which are used to clamp the two sides of the cement culvert pipe.

[0009] The clamping component includes a fixed clamping plate and a movable clamping plate, which form a clamping groove between each other for clamping the pipe opening side of the cement culvert. A chain is fixed on one side of the fixed clamping plate, and an adjustment device is installed on the other side for driving the movable clamping plate closer to or further away from the fixed clamping plate to adjust the spacing of the clamping grooves.

[0010] It also includes a tensioning device for merging the chains.

[0011] Furthermore, the movable clamping plate has an arc-shaped plate structure. The adjusting device is a screw, and guide posts are connected to both sides of the fixed clamping plate corresponding to the screw position. The upper end of the guide post is fixed to the fixed clamping plate, and the lower end is fixed to the same fixed plate. Both the fixed plate and the fixed clamping plate have limiting holes for limiting the rotation of the screw axis. The movable clamping plate has a threaded sleeve for fitting the screw and for driving the threaded sleeve to move the movable clamping plate. The movable clamping plate has a guide groove to accommodate the corresponding guide post.

[0012] Furthermore, a lifting ring is installed at the end of the chain merging section, and the position of the lifting ring is used to tighten the chain via a tightening device. The tightening device includes a first tightening plate and a second tightening plate that are parallel to each other. Two connecting rods are vertically fixed to the corresponding surfaces of the first tightening plate, and the second tightening plate has through holes for the two connecting rods to pass through. One end of the connecting rod passing through the through hole is threaded and is fixed with a nut.

[0013] The present invention has the following advantages: the end position of the cement culvert is fixed by the clamping component. Since the diameter of the cement culvert is different, the thickness of the corresponding side wall is also different. In order to achieve the best clamping and fixing effect, the clamping groove of the clamping component is first adjusted according to the thickness of the cement culvert. It can be slightly larger than the thickness of the cement culvert, which makes it easy to disassemble and install the clamping component, and at the same time achieves the best clamping effect.

[0014] To prevent the clamping components from disengaging during lifting, the chains are merged at the center of the cement culvert. The center of gravity of the culvert is located, and the chains connecting the two sides are merged into one at this position. The chain is then limited by a tightening device. A chain loop is formed on the upper side of the merged chain, which is used to fix the lifting device and ensure the stability of the clamping components during lifting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 : A partially enlarged structural schematic diagram of this utility model and its clamping components.

[0017] Figure 2 : A partially enlarged structural schematic diagram of this utility model and the fastening device.

[0018] Figure 3 : Schematic diagram of the construction and lifting state of this utility model.

[0019] The components represented by each number in the attached diagram are listed below: chain 1, clamping component 2, cement culvert 6, fixed clamping plate 21, movable clamping plate 22, tightening device 4, screw 3, guide post 23, fixing plate 24, lifting ring 5, first tightening plate 41, second tightening plate 42, connecting rod 43, nut 44. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figures 1-3 As shown: A cement culvert lifting device includes a chain 1, which is formed by interlocking circular links; the lifting device uses a circular link chain, which has a greater lifting and weighing capacity.

[0022] Both ends of the chain 1 are connected to clamping components 2, which are used to clamp the two sides of the cement culvert 6.

[0023] The clamping component 2 includes a fixed clamping plate 21 and a movable clamping plate 22, which form a clamping groove between each other for clamping the pipe opening side of the cement culvert 6. A chain 1 is fixed on one side of the fixed clamping plate 21, and an adjustment device is installed on the other side for driving the movable clamping plate 22 to move closer to or away from the fixed clamping plate 21 to adjust the spacing of the clamping grooves.

[0024] It also includes a tightening device 4 for merging the chains 1.

[0025] The end position of the cement culvert is fixed by clamping components. Since the diameter of the cement culvert is different, the thickness of the corresponding side wall is also different. In order to achieve the best clamping and fixing effect, the clamping groove of the clamping components should be adjusted according to the thickness of the cement culvert. It should be slightly larger than the thickness of the cement culvert to facilitate the disassembly and installation of the clamping components and achieve the best clamping effect.

[0026] To prevent the clamping components from disengaging during lifting, the chains are merged at the center of the cement culvert. The center of gravity of the culvert is located, and the chains connecting the two sides are merged into one at this position. The chain is then limited by a tightening device. A chain loop is formed on the upper side of the merged chain, which is used to fix the lifting device and ensure the stability of the clamping components during lifting.

[0027] like Figure 1As shown: The movable clamping plate 22 has an arc-shaped plate structure. It is used to adapt to the arc-shaped side of the inner surface of the cement culvert, making the clamping more stable. The movable clamping plate and the inner arc side of the culvert are in surface contact, reducing the pressure at the stress point of the culvert. The adjustment device is a screw 3. Guide posts 23 are connected to both sides of the fixed clamping plate 21 corresponding to the position of the screw 3. The upper end of the guide post 23 is fixed to the fixed clamping plate 21, and the lower end is fixed to the same fixed plate 24. Both the fixed plate 24 and the fixed clamping plate 21 have limiting holes for the rotation of the axis of the limiting screw 3. The movable clamping plate 22 has a screw sleeve for fitting the screw 3, which drives the screw sleeve and moves the movable clamping plate 22. The limiting hole fits the smooth rod corresponding to the screw for limiting rotation. The lower end of the screw is also fixed with a hexagonal column head, which is convenient to rotate with a wrench to adjust the position of the movable clamping plate. The movable clamping plate 22 has a guide groove to accommodate the corresponding guide post 23. It is used to limit the movement stability of the movable clamping plate, while improving the stability under force and preventing the screw from deforming due to the twisting of the movable clamping plate under force.

[0028] like Figure 2 As shown: A lifting ring 5 is installed at the end of the merging section of chain 1. The position of the lifting ring 5 is achieved by tightening the chain 1 using a tightening device 4. The lifting ring has a ring structure with an arc-shaped groove on the outer ring side to accommodate the chain and to position the lifting device to accurately locate the center of gravity of the culvert. The tightening device 4 includes a first tightening plate 41 and a second tightening plate 42 that are parallel to each other. Two connecting rods 43 are vertically fixed to the corresponding surfaces of the first tightening plate 41. The second tightening plate 42 has through holes for the two connecting rods 43 to pass through. The end of the connecting rod 43 that passes through the through hole is threaded and is fixed by a nut 44.

[0029] The first and second connecting rods are inserted into the chain loop that is merged together to fix the two merged chains.

[0030] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A cement culvert lifting device, characterized in that: Includes a chain (1), which is made up of interlocking rings; Both ends of the chain (1) are connected to clamping components (2), which are used to clamp the two sides of the cement culvert (6). The clamping component (2) includes a fixed clamping plate (21) and a movable clamping plate (22), which form a clamping groove between each other for clamping the pipe opening side of the cement culvert (6). The fixed clamping plate (21) has a chain (1) fixed on one side and an adjustment device installed on the other side for driving the movable clamping plate (22) to move closer to or away from the fixed clamping plate (21) and for adjusting the clamping groove spacing. It also includes a tightening device (4) for merging the chains (1).

2. The cement culvert lifting device according to claim 1, characterized in that: The movable clamping plate (22) has an arc-shaped plate structure.

3. The cement culvert lifting device according to claim 1, characterized in that: The adjusting device is a screw (3). The fixed clamping plate (21) is connected to guide posts (23) on both sides corresponding to the position of the screw (3). The upper end of the guide post (23) is fixed to the fixed clamping plate (21), and the lower end is fixed to the same fixed plate (24). The fixed plate (24) and the fixed clamping plate (21) are both provided with limiting holes for the rotation of the axis of the limiting screw (3). The movable clamping plate (22) has a screw sleeve for fitting the screw (3) and for driving the screw sleeve and moving the movable clamping plate (22).

4. The cement culvert lifting device according to claim 3, characterized in that: The movable clamping plate (22) has a guide groove to accommodate the corresponding guide post (23).

5. The cement culvert lifting device according to claim 1, characterized in that: The chain (1) is equipped with a lifting ring (5) at the end of the merging section. The position of the lifting ring (5) is used to tighten the chain (1) by a tightening device (4).

6. A cement culvert lifting device according to claim 1 or 5, characterized in that: The fastening device (4) includes a first fastening plate (41) and a second fastening plate (42) that are parallel to each other. The first fastening plate (41) has two connecting rods (43) fixed vertically to the corresponding plate surface. The second fastening plate (42) has a through hole for the two connecting rods (43) to pass through. One end of the connecting rod (43) that passes through the through hole is a threaded part and is fixed by a nut (44).

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