Foundation pit construction anti-falling structure

Abstract

The application relates to the technical field of foundation pit construction, in particular to a foundation pit construction anti-falling structure, which comprises an anti-falling connecting pipe, a pipe butt joint groove is symmetrically arranged on the side wall of the two ends of the anti-falling connecting pipe, a pipe butt joint structure is arranged on the side wall of the two ends of the anti-falling connecting pipe and corresponds to the pipe butt joint groove, a plurality of rope connecting holes are arranged on the side wall of the anti-falling connecting pipe, and a pulley groove is arranged at the bottom of the anti-falling connecting pipe. The emergency fixing structure is arranged in the foundation pit construction anti-falling structure, the fixed connecting plate and the sliding connecting plate in the emergency fixing structure are utilized, and the interaction among the various components enables quick locking under weightlessness, so that the anti-falling structure can be quickly locked under the action of gravity in the case that the operating personnel steps on nothing during the use of the foundation pit construction anti-falling structure, the safety of the operating personnel is ensured, and the problem that the anti-falling structure cannot be fixed in an emergency is solved.

Description

Technical Field

[0001] This invention relates to the field of foundation pit construction technology, specifically to a foundation pit construction anti-fall structure. Background Technology

[0002] Current foundation pit excavation methods typically employ layered excavation. When excavating to 0.5-1m below the steel waler, a 2m wide backfill is left, with a slope ratio of approximately 1:1. Workers then stand on the backfill platform to install the steel waler and secure the device to the retaining structure 0.5-1m above it using expansion bolts. When erecting steel supports, workers attach safety harness hooks to the connecting plate of this device to allow them to walk above the steel waler, ensuring worker safety. However, traditional methods require securing safety ropes to the expansion bolts or the safety rope between the bolts. Workers must repeatedly attach and remove safety hooks, which is inconvenient. Furthermore, traditional fall protection structures cannot be interconnected to meet specific needs, and in emergencies, timely fixation may be impossible, potentially leading to worker injury. To address these issues, a user-friendly, modular, and emergency-secured fall protection structure for foundation pit construction is needed. Summary of the Invention

[0003] To improve construction safety, this invention provides a convenient, modular, and emergency-secured anti-fall structure for foundation pit construction, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A fall protection structure for foundation pit construction includes a fall protection connecting pipe. Symmetrical pipe-connecting grooves are provided on the sidewalls at both ends of the fall protection connecting pipe. Pipe-connecting structures are provided on the sidewalls at both ends of the fall protection connecting pipe, corresponding to the pipe-connecting grooves. Multiple sets of rope connection holes are provided on the sidewalls of the fall protection connecting pipe. A pulley groove is provided at the bottom of the fall protection connecting pipe, and rotating pulleys are symmetrically arranged in the pulley groove. An emergency fixing structure is provided on each rotating pulley.

[0006] The pipe docking structure includes a fixed connecting pipe. The bottom of the fixed connecting pipe is provided with a clearance groove corresponding to the pulley groove. Two sets of connecting brackets are symmetrically arranged on the front and back of the fixed connecting pipe. A rotating shaft is connected to the two sets of connecting brackets. A limiting plate is connected to the side wall of the rotating shaft. A positioning groove is provided on the side wall of the fixed connecting pipe corresponding to the limiting plate. A fixed shaft is connected to the two sets of connecting brackets below the rotating shaft. A bracket spring is connected to the side wall of the fixed shaft. One end of the limiting plate is connected to the pipe docking groove.

[0007] The emergency fixing structure includes a fixed connecting plate, a rotating pulley connected to the fixed connecting plate, a sliding connecting plate connected to the side wall of the fixed connecting plate, fixed connecting posts symmetrically arranged on the back of the sliding connecting plate, fixed grooves corresponding to the fixed connecting posts on the side wall of the fixed connecting plate, a waist-shaped safety buckle connecting groove on the side wall of the fixed connecting plate located between the fixed grooves, a circular safety buckle connecting hole on the side wall of the sliding connecting plate corresponding to the waist-shaped safety buckle connecting groove, and a circular safety buckle connecting hole on the side wall of the sliding connecting plate located above the circular safety buckle connecting hole. The device has symmetrically arranged oblique guide grooves, in which sliding connecting columns are installed. One end of the sliding connecting column is connected to a rotating connecting plate, and a rotating connecting column is connected to the side wall of the rotating connecting plate. The rotating connecting column is connected to the side wall of a fixed connecting plate. The other end of the rotating connecting plate is connected to an anti-slip fixing block, and an anti-slip connecting block is provided on the end face of the anti-slip fixing block. Multiple sets of anti-slip teeth are provided on the opposite surfaces of the anti-slip fixing block and the anti-slip connecting block. The anti-slip connecting block is connected to the top surface of the inner cavity of the anti-fall connecting pipe. A return spring is connected to the side wall of the rotating connecting plate through a connecting rod.

[0008] As a preferred embodiment of the present invention, the anti-fall connecting pipe is made of steel plate bent into shape, and the rotating pulley is connected to the fixed connecting plate through a rotating shaft, wherein the rotating pulley and the rotating shaft are connected by a rotating connection.

[0009] As a preferred embodiment of the present invention, the connection between the fixed connecting pipe and the anti-fall connecting pipe is a sliding connection, and the connection between the connecting bracket and the rotating shaft is a rotating connection.

[0010] As a preferred embodiment of the present invention, the side wall of the limiting plate is provided with anti-slip texture, and the fixing shaft and the bracket spring are fitted with a clearance fit.

[0011] In a preferred embodiment of the present invention, one end of the limiting plate is correspondingly provided with the pipe docking groove, and the connection method between the fixed connecting column and the fixed sliding groove is a sliding connection.

[0012] As a preferred embodiment of the present invention, the straight line connecting the two centers of the waist-shaped safety buckle connecting groove is parallel to the vertical direction, and two sets of oblique guide grooves are provided and symmetrically opened on the side wall of the sliding connecting plate, wherein the two sets of oblique guide grooves have an inverted octagonal structure.

[0013] As a preferred embodiment of the present invention, the inclined guide groove is connected to the sliding connecting column in a sliding connection manner, and the rotating connecting plate is connected to the rotating connecting column in a rotating connection manner.

[0014] As a preferred embodiment of the present invention, the anti-slip teeth on the end face of the anti-slip fixing block and the anti-slip teeth on the bottom face of the anti-slip connecting block are connected by an interlocking connection.

[0015] Compared with the prior art, the present invention, by setting a pipe docking structure in the foundation pit construction fall protection structure, utilizes the fixed connecting pipes in the pipe docking structure and the interaction between various components to enable the rapid docking of multiple sets of fall protection connecting pipes. This allows for the docking of multiple sets of fall protection structures during the use of the foundation pit construction fall protection structure, thereby meeting the work requirements and solving the problem of not being able to splice them.

[0016] Compared with existing technologies, this invention incorporates an emergency fixing structure within the foundation pit construction fall protection structure. This structure utilizes the interaction between the fixed and sliding connecting plates and various components within the emergency fixing structure to enable rapid locking under weightlessness. Consequently, during the use of the foundation pit construction fall protection structure, if a worker slips and falls, the structure can be quickly locked under gravity, ensuring worker safety and solving the problem of inability to perform emergency fixing.

[0017] Compared with the prior art, the present invention, by incorporating a design in the foundation pit construction fall protection structure where a rotating pulley is inserted from one end of the pulley groove into the fall protection connecting pipe, and then the safety buckle on the worker's safety rope is fastened to the waist-shaped safety buckle connecting groove and the circular safety buckle connecting hole, facilitates the connection between the rotating pulley and the fall protection connecting pipe during the use of the foundation pit construction fall protection structure, making it very convenient for workers to use, thus solving the problem of inconvenience in use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isolateral structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Partial structural diagram;

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of cross-section structure;

[0021] Figure 4 This is a schematic diagram of the pipe connection structure of the present invention;

[0022] Figure 5 For the present invention Figure 4 Partial structural diagram;

[0023] Figure 6 For the present invention Figure 5 Partial structural diagram;

[0024] Figure 7 This is a schematic diagram of the emergency fixing structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Partial structural diagram;

[0026] Figure 9 For the present invention Figure 8 Schematic diagram of the exploded structure.

[0027] In the diagram: 1. Fall arrestor connecting pipe; 2. Pipe docking groove; 3. Pipe docking structure; 4. Rope connection hole; 5. Pulley groove; 6. Rotating pulley; 7. Emergency fixing structure; 301. Fixed connecting pipe; 302. Clearance groove; 303. Connecting bracket; 304. Rotating shaft; 305. Limiting plate; 306. Positioning groove; 307. Fixed shaft; 308. Bracket spring; 701. Fixed connecting plate; 702. Sliding connecting plate; 703. Fixed connecting column; 704. Fixed slide groove; 705. Waist-shaped safety buckle connecting groove; 706. Circular safety buckle connecting hole; 707. Angled guide groove; 708. Sliding connecting column; 709. Rotating connecting plate; 710. Rotating connecting column; 711. Anti-slip fixing block; 712. Anti-slip connecting block; 713. Anti-slip teeth; 714. Return spring. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] For an example, please refer to... Figure 1-9 The present invention provides a fall protection structure for foundation pit construction, including a fall protection connecting pipe 1, with pipe docking grooves 2 symmetrically opened on the side walls at both ends of the fall protection connecting pipe 1, and pipe docking structures 3 corresponding to the pipe docking grooves 2 on the side walls at both ends of the fall protection connecting pipe 1, with multiple sets of rope connection holes 4 opened on the side walls of the fall protection connecting pipe 1, and a pulley groove 5 opened at the bottom of the fall protection connecting pipe 1, with rotating pulleys 6 symmetrically arranged in the pulley groove 5, and an emergency fixing structure 7 provided on the rotating pulleys 6;

[0030] For an example, please refer to... Figure 1-6The pipe connection structure 3 includes a fixed connecting pipe 301. A clearance groove 302 is provided at the bottom of the fixed connecting pipe 301, corresponding to the pulley groove 5. Two sets of connecting brackets 303 are symmetrically arranged on the front and back of the fixed connecting pipe 301. A rotating shaft 304 is connected to the two sets of connecting brackets 303. A limiting plate 305 is connected to the side wall of the rotating shaft 304. A positioning groove 306 is provided on the side wall of the fixed connecting pipe 301, corresponding to the limiting plate 305. The two sets of connecting brackets 303 are located on the rotating shaft 304. A fixed shaft 307 is connected to the bottom of 04. A bracket spring 308 is connected to the side wall of the fixed shaft 307. With one end of the limiting plate 305 connected in the pipe docking groove 2, the two sets of anti-fall connecting pipes 1 are inserted into the fixed connecting pipe 301, thereby enabling the two sets of anti-fall connecting pipes 1 to dock. When not in use, the limiting plate 305 is pressed with a finger, thereby causing the bracket spring 308 to deform, causing one end of the limiting plate 305 to separate from the pipe docking groove 2, thereby removing the two sets of anti-fall connecting pipes 1.

[0031] The device is connected to the fixed connecting plate 701 via a rotating shaft, and the rotating pulley 6 is connected to the rotating shaft in a rotating connection design, which makes the device more convenient to use during operation. The fixed connecting pipe 301 is connected to the anti-fall connecting pipe 1 in a sliding connection. The connecting bracket 303 is connected to the rotating shaft 304 in a rotating connection. The side wall of the limiting plate 305 is provided with anti-slip texture. The fixed shaft 307 and the bracket spring 308 are fitted with a clearance fit. One end of the limiting plate 305 is designed to correspond with the pipe docking groove 2, which makes the device docking smoother.

[0032] For an example, please refer to... Figure 1-3 and Figure 7-9In the emergency fixing structure 7, a fixed connecting plate 701 is included, a rotating pulley 6 is connected to the fixed connecting plate 701, a sliding connecting plate 702 is connected to the side wall of the fixed connecting plate 701, fixed connecting posts 703 are symmetrically arranged on the back of the sliding connecting plate 702, a fixed sliding groove 704 is provided on the side wall of the fixed connecting plate 701 corresponding to the fixed connecting post 703, a waist-shaped safety buckle connecting groove 705 is provided on the side wall of the fixed connecting plate 701 between the fixed sliding grooves 704, and a circular safety buckle connecting hole 706 is provided on the side wall of the sliding connecting plate 702 corresponding to the waist-shaped safety buckle connecting groove 705. Under the action of gravity, the sliding connecting plate 702 is pulled downward, thereby causing the sliding connecting plate 702 to move downward. An oblique guide groove 707 is symmetrically provided on the side wall of the sliding connecting plate 702 above the circular safety buckle connecting hole 706. 07 is provided with a sliding connecting column 708, one end of which is connected to a rotating connecting plate 709. A rotating connecting column 710 is connected to the side wall of the rotating connecting plate 709. The rotating connecting column 710 is connected to the side wall of the fixed connecting plate 701. With the other end of the rotating connecting plate 709 connected to an anti-slip fixing block 711, the rotating connecting plate 709 is rotated. An anti-slip connecting block 712 is provided on the end face of the anti-slip fixing block 711. Multiple sets of anti-slip teeth 713 are provided on the opposite surfaces of the anti-slip fixing block 711 and the anti-slip connecting block 712. The anti-slip connecting block 712 is connected to the top surface of the inner cavity of the fall-prevention connecting pipe 1. With a return spring 714 connected to the side wall of the rotating connecting plate 709 through a connecting rod, the anti-slip fixing block 711 and the anti-slip connecting block 712 are fixed to each other, thereby preventing workers from falling and protecting their personal safety.

[0033] The connection between the fixed connecting column 703 and the fixed sliding groove 704 is a sliding connection design, allowing the worker to slide smoothly under the influence of gravity. The straight line connecting the two centers of the waist-shaped safety buckle connecting groove 705 is parallel to the vertical direction. Two sets of inclined guide grooves 707 are symmetrically set on the side wall of the sliding connecting plate 702. The two sets of inclined guide grooves 707 have an inverted octagonal structure. The connection between the inclined guide grooves 707 and the sliding connecting column 708 is a sliding connection design, allowing the sliding connecting column 708 to slide obliquely during the fall. The connection between the rotating connecting plate 709 and the rotating connecting column 710 is a rotating connection. The connection between the anti-slip teeth 713 on the end face of the anti-slip fixing block 711 and the anti-slip teeth 713 on the bottom face of the anti-slip connecting block 712 is an meshing connection design, which allows the device to operate smoothly during use.

[0034] The workflow of this invention is as follows: When using the anti-fall structure for foundation pit construction, firstly, according to the needs of use, under the condition that the connection between the fixed connecting pipe 301 and the anti-fall connecting pipe 1 is a sliding connection, insert two sets of anti-fall connecting pipes 1 into the fixed connecting pipe 301. Then, under the condition that the connection between the connecting bracket 303 and the rotating shaft 304 is a rotating connection, and under the action of the bracket spring 308, one end of the limiting plate 305 is inserted into the pipe docking groove 2, thereby completing the docking work between the two sets of anti-fall connecting pipes 1 and the fixed connecting pipe 301. After use, by pressing down with a finger, the spring is compressed, thereby separating one end of the limiting plate 305 from the pipe docking groove 2, thereby disassembling the anti-fall connecting pipe 1, and thus completing the splicing and disassembly of multiple sets of anti-fall connecting pipes 1.

[0035] When in use, first fix the fall arrestor connecting pipe 1 to the steel waler of the pit with the connecting rope, then insert the rotating pulley 6 into the fall arrestor connecting pipe 1 from one end of the pulley groove 5, and then fasten the safety buckle on the worker's safety rope to the waist-shaped safety buckle connecting groove 705 and the round safety buckle connecting hole 706, and then put it into use.

[0036] When a worker accidentally steps into a gap during operation, due to their own weight, the fixed connecting column 703 and the fixed sliding groove 704 are connected in a sliding manner. A circular safety buckle connecting hole 706 is provided on the side wall of the sliding connecting plate 702, corresponding to the waist-shaped safety buckle connecting groove 705. Under the condition that the straight line connecting the two centers of the waist-shaped safety buckle connecting groove 705 is parallel and vertical, the sliding connecting plate 702 is pulled downwards. Two sets of inclined guide grooves 707 are symmetrically provided on the side wall of the sliding connecting plate 702. The two sets of inclined guide grooves 707 have an inverted octagonal structure. The inclined guide grooves 707 are connected to the sliding connecting column 708 in a sliding manner. The rotating connecting... When the connection between the connecting plate 709 and the rotating connecting column 710 is a rotating connection, the rotating connecting plate 709 will rotate. When the anti-slip teeth 713 on the end face of the anti-slip fixing block 711 and the anti-slip teeth 713 on the bottom face of the anti-slip connecting block 712 are meshed, the anti-slip teeth 713 on the end face of the anti-slip fixing block 711 and the anti-slip teeth 713 on the bottom face of the anti-slip connecting block 712 mesh with each other, thereby stopping the rotating pulley 6 from rotating in the pulley groove 5. This ensures the safety of the workers. After the workers get up, the emergency fixing structure 7 will be reset under the action of the return spring 714, so that the workers can continue to work.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall protection structure for foundation pit construction, comprising a fall protection connecting pipe (1), characterized in that: The fall arresting connecting pipe (1) has symmetrically provided pipe docking grooves (2) on the side walls at both ends. The fall arresting connecting pipe (1) has pipe docking structures (3) on the side walls at both ends and corresponding to the pipe docking grooves (2). The fall arresting connecting pipe (1) has multiple sets of rope connection holes (4) on the side walls. The fall arresting connecting pipe (1) has a pulley groove (5) at the bottom. Rotating pulleys (6) are symmetrically provided in the pulley groove (5). An emergency fixing structure (7) is provided on the rotating pulley (6). The pipe docking structure (3) includes a fixed connecting pipe (301). A clearance groove (302) is provided at the bottom of the fixed connecting pipe (301) and corresponding to the pulley groove (5). Two sets of connecting brackets (303) are symmetrically arranged on the front and back of the fixed connecting pipe (301). A rotating shaft (304) is connected to the two sets of connecting brackets (303). A limiting plate (305) is connected to the side wall of the rotating shaft (304). A positioning groove (306) is provided on the side wall of the fixed connecting pipe (301) and corresponding to the limiting plate (305). A fixed shaft (307) is connected to the two sets of connecting brackets (303) and located below the rotating shaft (304). A bracket spring (308) is connected to the side wall of the fixed shaft (307). One end of the limiting plate (305) is connected in the pipe docking groove (2). The emergency fixing structure (7) includes a fixed connecting plate (701), the rotating pulley (6) is connected to the fixed connecting plate (701), a sliding connecting plate (702) is connected to the side wall of the fixed connecting plate (701), fixed connecting posts (703) are symmetrically arranged on the back of the sliding connecting plate (702), a fixed sliding groove (704) is provided on the side wall of the fixed connecting plate (701) corresponding to the fixed connecting post (703), a waist-shaped safety buckle connecting groove (705) is provided on the side wall of the fixed connecting plate (701) between the fixed sliding grooves (704), a circular safety buckle connecting hole (706) is provided on the side wall of the sliding connecting plate (702) corresponding to the waist-shaped safety buckle connecting groove (705), and a symmetrical safety buckle connecting hole (706) is provided on the side wall of the sliding connecting plate (702) above the circular safety buckle connecting hole (706). An inclined guide groove (707) is provided, in which a sliding connecting column (708) is provided. One end of the sliding connecting column (708) is connected to a rotating connecting plate (709). A rotating connecting column (710) is connected to the side wall of the rotating connecting plate (709). The rotating connecting column (710) is connected to the side wall of a fixed connecting plate (701). The other end of the rotating connecting plate (709) is connected to an anti-slip fixing block (711). An anti-slip connecting block (712) is provided on the end face of the anti-slip fixing block (711). Multiple sets of anti-slip teeth (713) are provided on the opposite surfaces of the anti-slip fixing block (711) and the anti-slip connecting block (712). The anti-slip connecting block (712) is connected to the top surface of the inner cavity of the anti-fall connecting pipe (1). A return spring (714) is connected to the side wall of the rotating connecting plate (709) through a connecting rod.

2. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The anti-fall connecting pipe (1) is made of steel plate bent into shape. The rotating pulley (6) is connected to the fixed connecting plate (701) through the rotating shaft. The rotating pulley (6) and the rotating shaft are connected by a rotating connection.

3. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The connection between the fixed connecting pipe (301) and the anti-fall connecting pipe (1) is a sliding connection, and the connection between the connecting bracket (303) and the rotating shaft (304) is a rotating connection.

4. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The side wall of the limiting plate (305) is provided with anti-slip texture, and the fixed shaft (307) and the bracket spring (308) are fitted with a clearance fit.

5. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: One end of the limiting plate (305) is correspondingly set with the pipe docking groove (2), and the connection method between the fixed connecting column (703) and the fixed sliding groove (704) is a sliding connection.

6. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The straight line connecting the two centers of the waist-shaped safety buckle connecting groove (705) is parallel to the vertical direction. The oblique guide groove (707) is provided in two sets and symmetrically opened on the side wall of the sliding connecting plate (702). The two sets of oblique guide grooves (707) have an inverted octagonal structure.

7. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The inclined guide groove (707) is connected to the sliding connecting column (708) by sliding connection, and the rotating connecting plate (709) is connected to the rotating connecting column (710) by rotating connection.

8. The anti-fall structure for foundation pit construction according to claim 1, characterized in that: The anti-slip teeth (713) on the end face of the anti-slip fixing block (711) and the anti-slip teeth (713) on the bottom face of the anti-slip connecting block (712) are connected by an interlocking connection.

Images