Box girder hoisting protection device

Abstract

The utility model relates to the technical field of box girders, in particular to a box girder hoisting protection device which comprises a side plate and a box girder body, the box girder body is arranged on one side of the side plate, a protection mechanism is arranged on the side plate, a hoisting column is arranged in the protection mechanism, a hoisting ring is arranged on one side of the hoisting column, a rotating disc is arranged on one side of the hoisting column, and a first threaded rod is arranged on one side of the rotating disc. A limiting plate is arranged at one end of the first threaded rod, an inserting rod is arranged on one side of the limiting plate, a rotating shaft is arranged at the upper end of the davit, a reverse screw is arranged on one side of the rotating shaft, a threaded cylinder is arranged in the middle of the reverse screw, a buffering mechanism is arranged on one side of the side plate, a fixing plate is arranged in the buffering mechanism, a spring rod is arranged in the fixing plate, and a clamping assembly and a protection mechanism are arranged on the spring rod. The box girder main body can be hoisted and protected through the mechanism, the reverse threaded rods on the two sides are driven to rotate by rotating the threaded cylinders according to the size of the box girder main body in the mechanism, then the distance between the hoisting columns on the two sides is adjusted, and then the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box girders, in particular to a hoisting protection device for box girders. Background Technique

[0002] A box girder is a kind of beam used in bridge construction, mainly divided into precast beams and cast-in-place beams. Compared with cast-in-place beams, precast beams have the advantages of high construction efficiency, good construction quality and low construction cost. Precast box girders need to be hoisted using gantry cranes during transportation and construction.

[0003] In this regard, Chinese Patent Application No.: CN218261572U discloses a hoisting protection device for precast box girders, which relates to the technical field of bridge construction. It includes two first steel plates attached to both side flanges of the precast box girder and two second steel plates attached to the corners of the bottom plate of the precast box girder; first rubber pads are arranged on the sides of the two first steel plates close to the precast box girder; second rubber pads are arranged on the sides of the two second steel plates close to the precast box girder; the steel wire ropes are in contact with the sides of the first steel plates and the second steel plates away from the precast box girder. This application has the effect of improving the surface quality of precast box girders.

[0004] However, for the existing box girder hoisting protection devices, due to the different sizes of the box girder main bodies, the existing devices cannot hoist and protect box girders with different sizes as required, thus increasing the limitations of the devices.

[0005] Therefore, in order to solve the above problems, a hoisting protection device for box girders is proposed. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a hoisting protection device for box girders to solve the problem that in the existing hoisting protection device for box girders in the prior art, due to the different sizes of the box girder main bodies, the existing devices cannot hoist and protect box girders with different sizes as required, thus increasing the limitations of the devices.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A hoisting protection device for box girders, comprising: side plates and a box girder main body, a box girder main body is arranged on one side of the side plates, a protection mechanism is arranged on the side plates, a suspension column is arranged inside the protection mechanism, a suspension ring is arranged on one side of the suspension column, and a turntable is arranged on one side of the suspension column, a first threaded rod is arranged on one side of the turntable, a limiting plate is arranged at one end of the first threaded rod, a plug rod is arranged on one side of the limiting plate, a rotating shaft is arranged at the upper end of the suspension column, a reverse threaded rod is arranged on one side of the rotating shaft, a threaded cylinder is arranged in the middle of the reverse threaded rod, and a buffer mechanism is arranged on one side of the side plates, a fixing plate is arranged inside the buffer mechanism, a spring rod is arranged inside the fixing plate, and a clamping assembly is arranged on the spring rod.

[0008] Preferably, a support plate is provided inside the clamping assembly. A slider is fixedly installed on one side of the support plate. A threaded hole is formed in the slider. One end of the spring rod passes through the threaded hole, and the clamping assembly is slidably installed on the spring rod through the slider and the threaded hole.

[0009] Preferably, a chute is formed in the support plate. A clamping plate is provided inside the chute. A limiting rod is movably installed on the clamping plate.

[0010] Preferably, a rotating block is rotatably installed on one side of the support plate. A second threaded rod is rotatably installed on one side of the rotating block. One end of the second threaded rod is rotatably installed inside the support plate, and the clamping plate is movably installed on the second threaded rod.

[0011] Preferably, the suspension post is fixedly installed on the side plate. The suspension ring is fixedly installed on the suspension post. The turntable is rotatably installed on the first threaded rod.

[0012] Preferably, one end of the first threaded rod passes through the suspension post and is rotatably installed on one side of the suspension post. The limiting plate is movably installed on the first threaded rod. The insertion rod is fixedly installed on the limiting plate, and the other end of the insertion rod is movably installed on the box girder main body.

[0013] Preferably, the fixing plate is fixedly installed on one side of the side plate. The spring rod is fixedly installed inside the fixing plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. A protection mechanism is provided. Through this mechanism, the box girder main body can be hoisted and protected. According to the size of the box girder main body inside the mechanism, by rotating the threaded cylinder to drive the reverse threaded rods on both sides to rotate, the distance between the suspension posts on both sides can be adjusted. Then, by driving the first threaded rod to rotate through the turntable, the limiting plate is moved. Then, by driving the insertion rod to move through the limiting plate, one end of the insertion rod is inserted into the prefabricated hole on the box girder main body to limit and fix the box girder main body. Then, the suspension rings on both sides of the suspension post are used for hoisting work through the existing mechanism, thereby improving the practicability of the device.

[0016] 2. A buffer mechanism is provided. Through this mechanism, the box girder main body can be buffered and limited. The support plate inside the mechanism supports the lower end of the box girder main body. By driving the second threaded rod to rotate through the rotating block, the clamping plate slides in the chute. During this process, the limiting rod can limit the clamping plate. Then, the box girder main body is clamped and limited by the clamping plate, so that the slider is stressed and the spring rod inside the fixing plate contracts, thereby buffering the box girder main body and improving the protection performance of the device. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the content of the embodiments of the present utility model and these drawings.

[0018] Figure 1 Front view structural schematic diagram of the present utility model;

[0019] Figure 2 Front view structural schematic diagram of the main body of the present utility model;

[0020] Figure 3 Front view sectional structural schematic diagram of the protection mechanism of the present utility model;

[0021] Figure 4 Sectional structural schematic diagram of the buffer mechanism of the present utility model;

[0022] Figure 5 Sectional structural schematic diagram of the clamping assembly of the present utility model.

[0023] In the figure: 1, side plate; 2, box girder main body; 3, protection mechanism; 31, suspension post; 32, suspension ring; 33, turntable; 34, first threaded rod; 35, limiting plate; 36, insertion rod; 37, rotating shaft; 38, reverse threaded rod; 39, threaded cylinder; 4, buffer mechanism; 41, fixing plate; 42, spring rod; 43, clamping assembly; 431, support plate; 432, slider; 433, threaded hole; 434, chute; 435, clamping plate; 436, limiting rod; 437, rotating block; 438, second threaded rod. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0025] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0026] A box girder hoisting protection device, comprising: a side plate 1 and a box girder main body 2. The box girder main body 2 is provided on one side of the side plate 1. A protection mechanism 3 is provided on the side plate 1. A lifting column 31 is provided inside the protection mechanism 3. A lifting ring 32 is provided on one side of the lifting column 31. A turntable 33 is provided on one side of the lifting column 31. A first threaded rod 34 is provided on one side of the turntable 33. A limiting plate 35 is provided at one end of the first threaded rod 34. A plug rod 36 is provided on one side of the limiting plate 35. A rotating shaft 37 is provided at the upper end of the lifting column 31. A reverse threaded rod 38 is provided on one side of the rotating shaft 37. A threaded cylinder 39 is provided in the middle of the reverse threaded rod 38. A buffer mechanism 4 is provided on one side of the side plate 1. A fixing plate 41 is provided inside the buffer mechanism 4. A spring rod 42 is provided inside the fixing plate 41. A clamping assembly 43 is provided on the spring rod 42. By providing this component, the box girder main body 2 can be protected by the protection mechanism 3, and the box girder main body 2 can be buffered and limited by the buffer mechanism 4.

[0027] As a further aspect of the present utility model, a support plate 431 is provided inside the clamping assembly 43. A slider 432 is fixedly installed on one side of the support plate 431. A threaded hole 433 is formed in the slider 432. One end of the spring rod 42 passes through the threaded hole 433, and the clamping assembly 43 is slidably installed on the spring rod 42 through the slider 432 and the threaded hole 433. By providing this component, the lower end of the box girder main body 2 can be clamped and fixed by the clamping assembly 43.

[0028] As a further aspect of the present utility model, a chute 434 is formed in the support plate 431. A clamping plate 435 is provided inside the chute 434. A limiting rod 436 is movably installed on the clamping plate 435. By providing this component, the box girder main body 2 can be supported by the support plate 431.

[0029] As a further aspect of the present utility model, a rotating block 437 is rotatably installed on one side of the support plate 431. A second threaded rod 438 is rotatably installed on one side of the rotating block 437. One end of the second threaded rod 438 is rotatably installed inside the support plate 431, and the clamping plate 435 is movably installed on the second threaded rod 438. By providing this component, the second threaded rod 438 can be driven to rotate by the rotating block 437.

[0030] As a further aspect of the present utility model, the lifting column 31 is fixedly installed on the side plate 1. The lifting ring 32 is fixedly installed on the lifting column 31. The turntable 33 is rotatably installed on the first threaded rod 34. By providing this component, the lifting ring 32 can be connected to an existing hoisting mechanism.

[0031] As a further aspect of the present utility model, one end of the first threaded rod 34 passes through the suspension column 31 and is rotatably installed on one side of the suspension column 31. The limit plate 35 is movably installed on the first threaded rod 34. The insertion rod 36 is fixedly installed on the limit plate 35, and the other end of the insertion rod 36 is movably installed on the box girder main body 2. By providing this component, the limit plate 35 can be driven to move by the first threaded rod 34.

[0032] As a further aspect of the present utility model, the fixed plate 41 is fixedly installed on one side of the side plate 1. The spring rod 42 is fixedly installed inside the fixed plate 41. By providing this component, the spring rod 42 can be supported and fixed by the fixed plate 41.

[0033] Working principle: When the box girder hoisting protection device needs to be used, only according to the size of the box girder main body 2, the reverse threaded rods 38 on both sides are driven to rotate by the threaded barrel 39 in the protection mechanism 3, so as to adjust the distance between the suspension columns 31 on both sides. Then, the first threaded rod 34 is driven to rotate by the turntable 33, so as to move the limit plate 35. Then, the insertion rod 36 is driven to move by the limit plate 35 so that one end of the insertion rod 36 is inserted into the prefabricated hole on the box girder main body 2 to limit and fix the box girder main body 2. Then, the lifting rings 32 on both sides of the suspension column 31 are used for lifting work through the existing mechanism. In this process, the box girder main body 2 can be buffered and limited by the buffer mechanism 4. The lower end of the box girder main body 2 is supported by the support plate 41 in the mechanism. Then, the second threaded rod 438 is driven to rotate by the rotating block 437, so that the clamping plate 435 slides in the chute 434. In this process, the clamping plate 435 can be limited by the limiting rod 436. Then, the box girder main body 2 is clamped and limited by the clamping plate 435, so that the slider 432 is stressed and the spring rod 42 in the fixed plate 41 is contracted, so as to buffer the box girder main body 2. In this way, the work can be completed.

[0034] The above is only a preferred embodiment of the present utility model, and it is not intended to limit the present utility model in any form; any ordinary technician in the industry can smoothly implement the present utility model according to the instructions in the attached drawings and the above description; however, any minor changes, modifications and evolutions made by those familiar with the professional technology within the scope of the technical solution of the present utility model by using the technical content disclosed above are equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A box girder hoisting protection device, comprising: A side plate (1) and a box beam body (2), wherein the box beam body (2) is arranged on one side of the side plate (1), characterized in that: a protection mechanism (3) is arranged on the side plate (1), a hanging column (31) is arranged inside the protection mechanism (3), a hanging ring (32) is arranged on one side of the hanging column (31), and a rotating disk (33) is arranged on one side of the hanging column (31), a first threaded rod (34) is arranged on one side of the rotating disk (33), and a limiting plate (35) is arranged at one end of the first threaded rod (34), A plug rod (36) is provided on one side of the limit plate (35), a rotating shaft (37) is provided on the upper end of the suspension column (31), a reverse screw (38) is provided on one side of the rotating shaft (37), a threaded tube (39) is provided in the middle of the reverse screw (38), and a buffer mechanism (4) is provided on one side of the side plate (1), a fixing plate (41) is provided in the buffer mechanism (4), a spring rod (42) is provided in the fixing plate (41), and a clamping assembly (43) is provided on the spring rod (42).

2. A box girder hoisting protection device according to claim 1, characterized in that: A support plate (431) is provided inside the clamping assembly (43), a slider (432) is fixedly mounted on one side of the support plate (431), a screw hole (433) is provided on the slider (432), one end of the spring rod (42) passes through the screw hole (433), and the clamping assembly (43) is slidably mounted on the spring rod (42) through the slider (432) and the screw hole (433).

3. A box girder hoisting protection device according to claim 2, characterized in that: The support plate (431) is provided with a slide groove (434), a clamping plate (435) is provided in the slide groove (434), and a limit rod (436) is movably installed on the clamping plate (435).

4. A box girder hoisting protection device according to claim 3, characterized in that: A rotating block (437) is rotatably mounted on one side of the support plate (431), a second threaded rod (438) is rotatably mounted on one side of the rotating block (437), one end of the second threaded rod (438) is rotatably mounted in the support plate (431), and the clamping plate (435) is movably mounted on the second threaded rod (438).

5. The box girder hoisting protection device according to claim 1, characterized in that: The suspension column (31) is fixedly mounted on the side plate (1), the suspension ring (32) is fixedly mounted on the suspension column (31), and the rotating disk (33) is rotatably mounted on the first threaded rod (34).

6. A box girder hoisting protection device according to claim 1, characterized in that: One end of the first threaded rod (34) passes through the suspension column (31) and is rotatably mounted on one side of the suspension column (31); the limit plate (35) is movably mounted on the first threaded rod (34); the insertion rod (36) is fixedly mounted on the limit plate (35); and the other end of the insertion rod (36) is movably mounted on the box beam body (2).

7. The box girder hoisting protection device according to claim 1, characterized in that: The fixing plate (41) is fixedly mounted on one side of the side plate (1), and the spring rod (42) is fixedly mounted inside the fixing plate (41).

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