Jacking overturn-preventing safety device of deck crane

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a bridge deck crane jacking overturn-preventing safety device which comprises a back pressure cross beam and overturn-preventing mechanisms vertically connected to the two sides of the back pressure cross beam respectively, and each overturn-preventing mechanism comprises a back pressure pull rod, an adjusting nut, a gasket and a fixing assembly. One end, penetrating through the penetrating hole, of the back pressure pull rod is in threaded connection with the fixing assembly, the back pressure pull rod is in key connection with a PBL of the corrugated steel web through the fixing assembly, and the adjusting nut and the gasket are arranged on the back pressure pull rod and located above the back pressure cross beam. The device is simple in structure, convenient to install, high in reliability and capable of effectively preventing the intelligent crane from overturning in the construction process and guaranteeing construction safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a bridge deck crane jacking anti-overturning safety device. Background Art

[0002] In the traditional bridge construction process, when the cantilever construction method is adopted, the intelligent crane is needed to perform lifting operations to ensure the efficiency and safety of the construction. However, after the construction is completed, the removal of the intelligent crane is a very complicated process, which needs to take into account many factors, such as safety, efficiency and cost.

[0003] In the cantilever construction of the corrugated steel web bridge, the intelligent crane needs to be lifted to install the bridge components to the predetermined position. However, the intelligent crane is prone to overturning during the lifting process, posing a serious threat to construction safety.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model provides a bridge deck crane jacking anti-overturning safety device, aiming to solve the technical problems pointed out in the above background technology.

[0006] In order to achieve the above object, the technical solution of the utility model is:

[0007] A bridge deck crane jacking anti-overturning safety device comprises a back pressure beam and anti-overturning mechanisms vertically connected to both sides of the beam.

[0008] The anti-overturning mechanism includes a back-pressure rod, an adjusting nut, a gasket and a fixing assembly. A through hole is opened on the back-pressure beam. One end of the back-pressure rod passing through the through hole is threadedly connected to the fixing assembly, and the back-pressure rod is connected to the PBL key of the corrugated steel web through the fixing assembly. The adjusting nut and gasket are provided on the back-pressure rod above the back-pressure beam.

[0009] A further technical solution of the utility model is that the fixing assembly includes a U-shaped fixing seat, a fastening nut and a fastening screw, a through hole is opened on the U-shaped fixing seat, the fastening nut is provided at the lower end of the through hole, the back-pressure pull rod passes through the through hole and is threadedly connected with the fastening nut, the U-shaped fixing seat is buckled on the PBL key, and is connected to the PBL key through the fastening screw.

[0010] A further technical solution of the utility model is that a first hole is formed on the PBL key, second holes matching the first hole are formed on both sides of the U-shaped fixing seat, and the fastening screw is inserted into the first hole and the second hole.

[0011] A further technical solution of the utility model is that the surfaces of the counter-pressure pull rod, the adjusting nut, the gasket and the U-shaped fixing seat are all provided with an anti-corrosion coating.

[0012] A further technical solution of the utility model is that the counter-pressure pull rod is a high-strength steel pull rod structure.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a bridge crane jacking anti-overturning safety device, which has a simple structure, is easy to install and has high reliability. It can effectively prevent the intelligent crane from overturning during the construction process and ensure construction safety.

[0015] 2. In the present invention, the length of the back-pressure pull rod can be adjusted by adjusting the adjusting nut and the gasket, thereby achieving back pressure during the lifting process of the intelligent crane and preventing the intelligent crane from overturning.

[0016] 3. The counter-pressure tie rod of the utility model adopts a high-strength steel tie rod structure, which has good load-bearing capacity and tensile strength, and can ensure the safety and reliability of construction.

[0017] 4. The back-pressure pull rod, adjusting nut, gasket and U-shaped fixing seat of the utility model are all provided with anti-corrosion coating, which can effectively prevent corrosion and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation of the jacking process of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the anti-overturning mechanism and the corrugated steel web of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the anti-overturning mechanism of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the fixing assembly of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the counter-pressure beam of the utility model.

[0023] The main component symbols in the figure are explained as follows:

[0024] 1. Counter-pressure beam; 11. Perforation; 2. Anti-overturning mechanism; 21. Counter-pressure pull rod; 22. Adjusting nut; 23. Gasket; 24. Fixing assembly; 241. U-shaped fixing seat; 2411. Through hole; 2412. Second hole position; 242. Fastening nut; 243. Fastening screw; 100. Corrugated steel web; 110. PBL key; 200. Intelligent crane. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] like Figures 1 to 5 As shown, a bridge crane jacking anti-overturning safety device includes a back-pressure beam 1 and anti-overturning mechanisms 2 vertically connected on both sides thereof, the anti-overturning mechanism 2 includes a back-pressure rod 21, an adjusting nut 22, a gasket 23 and a fixing assembly 24, a through hole 11 is opened on the back-pressure beam 1, one end of the back-pressure rod 21 passing through the through hole 11 is threadedly connected with the fixing assembly 24, and the back-pressure rod 21 is connected to the PBL key 110 of the corrugated steel web 100 through the fixing assembly 24, and an adjusting nut 22 and a gasket 23 are provided on the back-pressure rod 21 above the back-pressure beam 1; in the utility model, by adjusting the adjusting nut 22 and the gasket 23, the length of the back-pressure rod 21 can be adjusted, thereby realizing the back pressure of the intelligent crane 200 during the jacking process, preventing the intelligent crane 200 from overturning, and ensuring construction safety.

[0028] In this embodiment, refer to Figure 3 and Figure 4 The fixing assembly 24 includes a U-shaped fixing seat 241, a fastening nut 242 and a fastening screw 243. A through hole 2411 is opened on the U-shaped fixing seat 241, and a fastening nut 242 is provided at the lower end of the through hole 2411. The back-pressure pull rod 21 passes through the through hole 2411 and is threadedly connected with the fastening nut 242. The U-shaped fixing seat 241 is buckled on the PBL key 110 and is connected to the PBL key 110 through the fastening screw 243.

[0029] Specifically, a first hole position (not shown in the figure) is opened on the PBL key 110, and second holes 2412 matching the first hole position are opened on both sides of the U-shaped fixing seat 241, and the fastening screw 243 is inserted into the first hole position and the second hole position 2412; nuts can be threadedly connected to the two ends of the fastening screw 243, so as to secure it in the first hole position and the second hole position 2412 to achieve fixed positioning of the anti-overturning mechanism 2 and the corrugated steel web 100.

[0030] In this embodiment, the surfaces of the back-pressure rod 21, the adjusting nut 22, the gasket 23 and the U-shaped fixing seat 241 are all provided with an anti-corrosion coating (not shown in the figure); the anti-corrosion coating can effectively prevent corrosion of the components, thereby extending the service life; the back-pressure rod 21 is a high-strength steel rod structure; the steel rod structure has good bearing capacity and tensile strength, which can ensure the safety and reliability of construction.

[0031] The working principle of this utility model:

[0032] The utility model provides a bridge crane jacking anti-overturning safety device. When in use, the back-pressure rod 21 is connected to the fastening nut 242 of the fixing assembly 24, and the U-shaped fixing seat 241 is fixedly connected to the PBL key 110 of the corrugated steel web 100 by the fastening screw 243. The upper end of the back-pressure rod 21 is connected to the back-pressure beam 1 and the length of the back-pressure rod 21 is adjusted by adjusting the position of the adjusting nut 22 and the gasket 23, thereby realizing the back pressure of the intelligent crane 200 during the jacking process, preventing the intelligent crane 200 from overturning, and ensuring production safety.

[0033] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A bridge deck crane jacking anti-overturning safety device, characterized in that: It comprises a back-pressure beam (1) and anti-overturning mechanisms (2) vertically connected to both sides of the beam. The anti-overturning mechanism (2) comprises a back-pressure tie rod (21), an adjusting nut (22), a gasket (23) and a fixing assembly (24); a through hole (11) is provided on the back-pressure beam (1); one end of the back-pressure tie rod (21) passing through the through hole (11) is threadedly connected to the fixing assembly (24); and the back-pressure tie rod (21) is connected to a PBL key (110) of a corrugated steel web (100) via the fixing assembly (24); and the adjusting nut (22) and the gasket (23) are provided on the back-pressure tie rod (21) above the back-pressure beam (1).

2. A bridge crane jacking anti-overturning safety device as claimed in claim 1, characterized in that: The fixing assembly (24) comprises a U-shaped fixing seat (241), a fastening nut (242) and a fastening screw (243); a through hole (2411) is provided on the U-shaped fixing seat (241); the fastening nut (242) is provided at the lower end of the through hole (2411); the back-pressure pull rod (21) passes through the through hole (2411) and is threadedly connected to the fastening nut (242); the U-shaped fixing seat (241) is buckled on the PBL key (110) and is connected to the PBL key (110) via the fastening screw (243).

3. A bridge crane jacking anti-overturning safety device as claimed in claim 2, characterized in that: The PBL key (110) is provided with a first hole, and the two sides of the U-shaped fixing seat (241) are provided with second holes (2412) matching the first hole, and the fastening screw (243) is inserted into the first hole and the second hole (2412).

4. A bridge crane jacking anti-overturning safety device as claimed in claim 2, characterized in that: The surfaces of the back-pressure pull rod (21), the adjusting nut (22), the gasket (23) and the U-shaped fixing seat (241) are all provided with an anti-corrosion coating.

5. The anti-overturning safety device for bridge crane as claimed in claim 1, characterized in that: The counter-pressure pull rod (21) is a high-strength steel pull rod structure.

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