Safety anti-falling device for construction

Abstract

The safety anti-falling device for construction comprises a bottom plate and a preassembling seat, the bottom plate is arranged on the inner wall of the preassembling seat in a clamped mode, vertical boxes are fixedly connected to the two ends of the top of the bottom plate, threaded rods are rotationally connected to the inner walls of the vertical boxes through bearings, sleeves are connected to the surfaces of the threaded rods in a threaded and sleeved mode, and the sleeves are connected with the preassembling seat in a sleeved mode. A transverse plate is fixedly connected to the middle of the sleeve, a breast board is fixedly connected to the bottom end of the transverse plate, an anti-falling net is fixedly connected to the bottom end of the breast board, grooves are formed in the two sides of the bottom plate, springs are fixedly connected to one sides of the inner walls of the grooves, and clamping blocks are fixedly connected to one ends of the springs. The safety and operation convenience of bridge construction are guaranteed, the bottoms of the anti-falling nets are stacked together, the anti-falling nets can ascend and descend along with breast boards, and the safety of the anti-falling fence is improved; the anti-falling blocking fence is convenient to disassemble and assemble in a bridge construction site, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-fall devices, in particular to a safety anti-fall device for construction. Background Art

[0002] Bridge engineering refers to the work process of bridge survey, design, construction, maintenance and verification.

[0003] In the construction of bridge projects, it is necessary to install safety anti-fall barriers at the construction site to protect the constructors from falling. However, the existing anti-fall barriers used in bridge construction have the following disadvantages:

[0004] (1) The height of the existing anti-fall guardrails used in bridge construction is often fixed and cannot be adjusted. If the height is too low, the anti-fall protection effect on the constructors will be poor, while if the height is too high, it will cause inconvenience in bridge construction;

[0005] The existing anti-fall guardrails used in bridge engineering construction lack a quick disassembly and assembly structure, and the work efficiency is delayed due to the need to constantly change the construction site. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a safety anti-fall device for construction to solve the problems raised in the above background technology.

[0007] The technical problem solved by the utility model is achieved by adopting the following technical scheme: a safety anti-fall device for construction, comprising a base plate and a pre-installed seat, the base plate is clamped on the inner wall of the pre-installed seat, both ends of the top of the base plate are fixedly connected with vertical boxes, the inner wall of the vertical box is rotatably connected with a threaded rod through a bearing, the surface of the threaded rod is threadedly sleeved with a sleeve, the middle part of the sleeve is fixedly connected with a cross plate, the bottom end of the cross plate is fixedly connected with a guardrail, the bottom end of the guardrail is fixedly connected with an anti-fall net, grooves are provided on both sides of the base plate, a spring is fixedly connected to one side of the inner wall of the groove, a block is fixedly connected to one end of the spring, and bayonet holes are provided on both sides of the pre-installed seat.

[0008] Furthermore, the top end of the threaded rod passes through the vertical box and is fixedly connected to a rotating disk.

[0009] Furthermore, a displacement opening is provided on the surface of the vertical box.

[0010] Furthermore, the bottom end of the anti-falling net is fixedly connected to the bottom plate.

[0011] Furthermore, the surface of the clamping block is engaged with the bayonet.

[0012] Furthermore, both sides of the block are fixedly connected with sliding blocks, and both sides of the inner wall of the groove are provided with sliding grooves.

[0013] Furthermore, the surface of the sliding block is slidably connected to the sliding groove.

[0014] Furthermore, lugs are fixedly connected to the bottom ends of both sides of the pre-installed seat.

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

[0016] 1. The utility model simultaneously rotates the rotating disks on both sides of the anti-fall barrier to drive the threaded rod to rotate, thereby driving the two sleeves and the vertical lifting of the horizontal plate, so that the height of the guardrail can be adjusted according to the height of the constructor, ensuring the safety of bridge construction and the convenience of operation. The bottom of the anti-fall net is stacked together and can follow the lifting of the guardrail to improve the safety of the anti-fall barrier;

[0017] 2. By pre-installing the pre-installed seat at each bridge construction point, the bottom plate of the anti-fall barrier is inserted into the pre-installed seat when installing the anti-fall barrier. The two clamping blocks can pop out under the action of the spring and engage with the clamping holes on both sides to complete the locking. When disassembling, just press the clamping blocks back into the groove. This makes the anti-fall barrier easy to disassemble and assemble at the bridge construction site, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the groove of the utility model.

[0021] Figure 4 It is a top view of the groove of the utility model.

[0022] In the figure: 1-bottom plate; 2-vertical box; 3-rotating disk; 4-threaded rod; 5-bearing; 6-sleeve; 7-displacement port; 8-cross plate; 9-rail; 10-anti-fall net; 11-pre-installed seat; 12-groove; 13-spring; 14-block; 15-bayonet; 16-slider; 17-slide groove; 18-lug. DETAILED DESCRIPTION

[0023] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below in conjunction with specific diagrams. In the description of the utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection, or an integral connection can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components.

[0024] like Figures 1 to 4 As shown, a safety anti-fall device for construction includes a base plate 1 and a pre-installed seat 11, the base plate 1 is snap-fitted on the inner wall of the pre-installed seat 11, both ends of the top of the base plate 1 are fixedly connected with vertical boxes 2, the inner wall of the vertical box 2 is rotatably connected with a threaded rod 4 through a bearing 5, the surface of the threaded rod 4 is threadedly sleeved with a sleeve 6, the middle part of the sleeve 6 is fixedly connected with a cross plate 8, the bottom end of the cross plate 8 is fixedly connected with a guardrail 9, the guardrail 9 is used to block and protect the construction workers, the bottom end of the guardrail 9 is fixedly connected with an anti-fall net 10 for preventing the bottom of the guardrail from falling, grooves 12 are provided on both sides of the base plate 1, a spring 13 is fixedly connected to one side of the inner wall of the groove 12, a block 14 is fixedly connected to one end of the spring 13, and bayonet 15 is provided on both sides of the pre-installed seat 11 for limiting.

[0025] Furthermore, the top end of the threaded rod 4 passes through the vertical box 2 and is fixedly connected to a rotating disk 3 for easy rotation. A displacement opening 7 is provided on the surface of the vertical box 2 to increase the moving space. The bottom end of the anti-fall net 10 is fixedly connected to the bottom plate 1 to prevent it from falling off.

[0026] Furthermore, the surface of the block 14 is engaged with the bayonet 15 to play a locking role, and sliders 16 are fixedly connected to both sides of the block 14. Slide grooves 17 are provided on both sides of the inner wall of the groove 12. The surface of the slider 16 is slidably connected to the slide groove 17 to play a limiting and guiding role. The bottom ends of both sides of the pre-installed seat 11 are fixedly connected with lugs 18 to play an installation role.

[0027] Working principle of the utility model: the utility model drives the threaded rod 4 to rotate by rotating the rotating disks 3 on both sides of the anti-fall barrier at the same time, thereby driving the sleeve 6 and the horizontal plate 8 to move vertically on the surface of the displacement port 7, so that the height of the guardrail 9 can be adjusted according to the height of the constructor, thereby ensuring the safety of bridge construction and the convenience of operation. The bottom of the anti-fall net 10 is stacked together and can follow the lifting of the guardrail 9 to improve the safety of the anti-fall barrier. By pre-installing the pre-installed seat 11 at each bridge construction point, the bottom plate 1 of the anti-fall barrier is plugged into the pre-installed seat 11 when installing the anti-fall barrier, and the block 1 4 can pop out under the action of the spring 13 and engage with the bayonet holes 15 on both sides to complete the locking. When disassembling, it is only necessary to press the block 14 back into the groove 12. Therefore, the anti-drop barrier is easy to disassemble and assemble at the bridge construction site, which improves the work efficiency. Then, the pre-installed seat 11 is installed at the bridge construction site using fasteners at the lug 18. By pressing the block 14 to engage with the bayonet hole 15 or return to the groove 12, the anti-drop barrier can be installed or disassembled. During the movement of the block 14, the slider 16 and the slide groove 17 can prevent it from shifting and falling off.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A safety anti-fall device for construction, comprising a base plate (1) and a pre-installed seat (11), characterized in that: The bottom plate (1) is snap-fitted on the inner wall of the pre-installed seat (11), and both ends of the top of the bottom plate (1) are fixedly connected to a vertical box (2), and the inner wall of the vertical box (2) is rotatably connected to a threaded rod (4) through a bearing (5), and a sleeve (6) is threadedly sleeved on the surface of the threaded rod (4), and a cross plate (8) is fixedly connected to the middle of the sleeve (6), and a guard plate (9) is fixedly connected to the bottom end of the cross plate (8), and an anti-fall net (10) is fixedly connected to the bottom end of the guard plate (9), and grooves (12) are provided on both sides of the bottom plate (1), and a spring (13) is fixedly connected to one side of the inner wall of the groove (12), and one end of the spring (13) is fixedly connected to a block (14), and bayonet holes (15) are provided on both sides of the pre-installed seat (11).

2. A safety anti-fall device for construction as claimed in claim 1, characterized in that: The top end of the threaded rod (4) passes through the vertical box (2) and is fixedly connected to the rotating disk (3).

3. A safety anti-fall device for construction as claimed in claim 1, characterized in that: A displacement opening (7) is provided on the surface of the vertical box (2).

4. A safety fall prevention device for construction as claimed in claim 1, characterized in that: The bottom end of the anti-fall net (10) is fixedly connected to the bottom plate (1).

5. A safety anti-fall device for construction as claimed in claim 1, characterized in that: The surface of the clamping block (14) is clamped with the clamping port (15).

6. A safety fall prevention device for construction as claimed in claim 1, characterized in that: Slide blocks (16) are fixedly connected to both sides of the clamping block (14), and sliding grooves (17) are provided on both sides of the inner wall of the groove (12).

7. A safety fall prevention device for construction as claimed in claim 6, characterized in that: The surface of the sliding block (16) is slidably connected to the sliding groove (17).

8. A safety fall prevention device for construction as claimed in claim 1, characterized in that: The bottom ends of both sides of the pre-installed seat (11) are fixedly connected with lugs (18).

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