Portable prefabricated rainwater circular pipe culvert hoisting device

Abstract

The utility model discloses a portable prefabricated rainwater round pipe culvert hoisting device which comprises a hoisting beam, first chain holes are formed in the two ends of the side face of the hoisting beam, two sets of hoisting chains are installed on the hoisting beam through the two first chain holes, clamping jaws are connected to the bottom ends of the two sets of hoisting chains, and a round pipe culvert is jointly clamped below the two sets of clamping jaws. The clamping jaw comprises two clamping arms arranged in opposite directions, the clamping arms are of arc-shaped structures, pin holes are formed in the top ends of the side faces of the clamping arms, a pin shaft is jointly installed between the two clamping arms through the pin holes, the clamping arms are rotationally connected with the pin shaft, connecting arms are fixedly connected to the outer portions of the top ends of the clamping arms, and second chain holes are formed in the end portions of the side faces of the connecting arms. According to the hoisting device, the self-locking principle is utilized in the hoisting process, the circular pipe culvert can be conveniently grabbed and clamped through the two clamping jaws, then rapid butt joint installation can be achieved, the labor cost can be reduced, the construction efficiency can be improved, and the hoisting device is simple and stable in structure and extremely high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater pipe culvert construction, in particular to a convenient prefabricated rainwater circular pipe culvert hoisting device. Background Art

[0002] Cement concrete pipe culvert products are still widely used in domestic and foreign municipal highway construction, farmland water conservancy construction, power and railway engineering construction, and urban integrated pipe gallery construction due to their good performance in resisting annular external pressure, durability, and irreplaceable advantages such as low production cost, convenient production, low price, and long service life. They play a huge role in national infrastructure construction. The currently commonly used installation process of prefabricated circular pipe culverts mainly adopts crane and wire rope hoisting operations. Each installation requires a large amount of manual cooperation for hoisting. In addition, the horizontal angle of the circular pipe culvert cannot be adjusted during hoisting, which is not conducive to splicing with other circular pipe culverts. This technology can no longer meet the actual needs of modern engineering.

[0003] Therefore, those skilled in the art provide a convenient prefabricated rainwater circular pipe culvert lifting device to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a convenient prefabricated rainwater circular pipe culvert hoisting device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A convenient prefabricated rainwater circular pipe culvert hoisting device comprises a hanging beam, first chain holes are opened at both ends of the side of the hanging beam, and two sets of hanging chains are installed on the hanging beam through the two first chain holes, the bottom ends of the two sets of hanging chains are connected with clamping claws, and the two sets of clamping claws clamp the circular pipe culvert together;

[0007] The clamping jaw includes two clamping arms arranged in opposite directions, and the clamping arms are of an arc-shaped structure. A pin hole is provided at the top end of the side surface of the clamping arm, and a pin shaft is commonly installed between the two clamping arms through the pin hole and is rotatably connected to the pin shaft. A connecting arm is fixedly connected to the outside of the top end of the clamping arm, a second chain hole is provided at the end of the side surface of the connecting arm, and the connecting arm is connected to the suspension chain through the second chain hole.

[0008] Preferably, the lifting chain is a two-claw lifting chain, wherein the middle portion is the top end and is connected to the first chain hole, and the lower two ends of the lifting chain are respectively connected to the two second chain holes on the clamping claws.

[0009] Preferably, both ends of the outer side of the pin shaft are sleeved with limit rings.

[0010] Preferably, an arch is provided in the middle of the top end of the suspension beam, and a mounting hole is provided on the side of the arch.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The lifting device utilizes the self-locking principle during the lifting process. It can easily grasp the circular culvert through two clamps, and then can be quickly docked and installed, thereby reducing labor costs and improving construction efficiency. The structure is simple and stable and has extremely high universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the clamping jaw structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the circular pipe culvert installation structure proposed by the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the suspension beam structure.

[0018] In the figure: 1, lifting beam; 2, first chain hole; 3, lifting chain; 4, clamping claw; 41, clamping arm; 42, connecting arm; 43, second chain hole; 44, pin shaft; 5, circular culvert; 6, mounting hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 A convenient prefabricated rainwater circular pipe culvert hoisting device comprises a hanging beam 1, first chain holes 2 are opened at both ends of the side of the hanging beam 1, and two sets of hanging chains 3 are installed on the hanging beam 1 through the two first chain holes 2, the bottom ends of the two sets of hanging chains 3 are connected with clamping claws 4, and the two sets of clamping claws 4 clamp a circular pipe culvert 5 together below;

[0021] The clamping jaw 4 includes two clamping arms 41 arranged in opposite directions, and the clamping arms 41 are of an arc-shaped structure, a pin hole is provided at the top end of the side of the clamping arm 41, and a pin shaft 44 is installed between the two clamping arms 41 through the pin hole and is rotatably connected with the pin shaft 44, a connecting arm 42 is fixedly connected to the outside of the top end of the clamping arm 41, a second chain hole 43 is provided at the end of the side of the connecting arm 42, and the connecting arm 42 is connected to the suspension chain 3 through the second chain hole 43;

[0022] In the technical solution adopted above, the two clamping arms 41 and the two connecting arms 42 on the clamping jaws 4 are symmetrically arranged on the same plane, and the two clamping arms 41 can rotate around the pin shaft 44. After the clamping jaws 4 clamp the circular culvert 5, when it is suspended and lifted, due to the action of gravity, the two connecting arms 42 will rotate upward in opposite directions, and the two clamping arms 41 will also rotate in opposite directions around the pin shaft, and the angle will become smaller, thereby realizing a self-locking method to lift the circular culvert 5 horizontally.

[0023] The lifting chain 3 is a two-claw lifting chain, the middle of which is the top and connected to the first chain hole 2, and the two lower ends of the lifting chain 3 are respectively connected to the two second chain holes 43 on the clamping claw 4;

[0024] In the above technical solution, the lifting chain 3 adopts a two-claw lifting chain, the lower ends of which are connected to the two connecting arms 42 on the clamping claw 4, forming a triangular structure, and the top angle of the lifting chain 3 is not less than 60 degrees, ensuring that the circular culvert 5 can be lifted vertically during the lifting process, ensuring the stability and safety of the lifting process.

[0025] Limiting rings are sleeved and installed on both ends of the outer side of the pin shaft 44;

[0026] In the technical solution adopted above, the role of the limiting ring is to limit the installation position of the pin shaft 44 , so as to achieve the rotational connection between the two clamping arms 41 .

[0027] An arch is provided in the middle of the top of the hanging beam 1, and a mounting hole 6 is provided on the side of the arch;

[0028] In the technical solution adopted above, the function of the mounting hole 6 is to connect the hanging beam 1 with the corresponding components, so as to realize the corresponding lifting work.

[0029] Working principle:

[0030] The hoisting device adjusts the center of gravity offset through the hoisting beam 1 and the hoisting chain 3, thereby ensuring that the entire hoisting process is in a static equilibrium state, ensuring the stability and safety of the hoisting process, and can conveniently clamp the circular culvert 5 through the two clamping claws 4, and can realize the self-locking principle through the action of gravity, so that the circular culvert 5 is horizontally lifted, which has the characteristics of convenient installation and disassembly. In addition, it also solves the problem of damage to the circular culvert during the hoisting process and improves the safety performance of the hoisting process, ensures the quality of the culvert, reduces labor costs, improves construction efficiency, and has a simple and stable structure with extremely high universality.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A convenient prefabricated rainwater circular pipe culvert hoisting device, comprising a hoisting beam (1), characterized in that: Both ends of the side of the hanging beam (1) are provided with first chain holes (2), and two sets of hanging chains (3) are installed on the hanging beam (1) through the two first chain holes (2), the bottom ends of the two sets of hanging chains (3) are connected to clamping claws (4), and the two sets of clamping claws (4) clamp a circular pipe culvert (5) underneath; The clamping jaw (4) comprises two clamping arms (41) arranged in opposite directions, and the clamping arms (41) are of an arc-shaped structure. A pin hole is provided at the top end of the side of the clamping arm (41), and a pin shaft (44) is installed between the two clamping arms (41) through the pin hole and is rotatably connected to the pin shaft (44). A connecting arm (42) is fixedly connected to the outside of the top end of the clamping arm (41), and a second chain hole (43) is provided at the end of the side of the connecting arm (42), and the connecting arm (42) is connected to the suspension chain (3) through the second chain hole (43).

2. A portable prefabricated rainwater circular pipe culvert hoisting device according to claim 1, characterized in that: The lifting chain (3) is a two-claw lifting chain, wherein the middle portion is the top end and is connected to the first chain hole (2), and the lower ends of the lifting chain (3) are respectively connected to the two second chain holes (43) on the clamping claw (4).

3. A portable prefabricated rainwater circular pipe culvert hoisting device according to claim 2, characterized in that: Limiting rings are sleeved and installed on both ends of the outer side of the pin shaft (44).

4. A portable prefabricated rainwater circular pipe culvert hoisting device according to claim 3, characterized in that: An arch is provided in the middle of the top end of the suspension beam (1), and a mounting hole (6) is provided on the side of the arch.

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