Safe anti-falling support for cast-in-situ bored pile

By designing a safety anti-fall support for bored piles, using vacuum suction cups for fixing, telescopic support rods for support, and fall arrestor for locking, the risk of workers falling from heights was solved, thus improving construction safety.

CN224213822UActive Publication Date: 2026-05-08INNER MONGOLIA ROAD & BRIDGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA ROAD & BRIDGE
Filing Date
2025-02-17
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

During the drilling and grouting process, construction workers lack effective protective measures, posing a risk of falling from heights, especially during nighttime construction.

Method used

A safety anti-fall support for bored piles was designed, including a base, a support frame and an anti-fall device. It is fixed to the construction site using a vacuum suction cup, and a telescopic support rod provides stable support. The anti-fall device quickly locks by sensing abnormal acceleration or tension to ensure safety.

Benefits of technology

It effectively prevents construction workers from falling and improves construction safety. Through multiple protection mechanisms, it can provide additional support and cushioning even in extreme situations, thereby enhancing overall safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224213822U_ABST
Patent Text Reader

Abstract

The utility model discloses a cast-in-situ bored pile safety anti-falling support which comprises a base, a support body is detachably connected to the base, an anti-falling device is movably connected to the support body, and the anti-falling device is used for being connected with a safety belt, can sense abnormal acceleration or pulling force and is rapidly locked when sensing abnormity. Abnormal acceleration or pulling force can be sensed in real time through the anti-falling device, and the anti-falling device can be quickly locked when dangerous conditions are detected. By means of the design, accidental falling accidents can be effectively prevented when constructors work high above the ground, and construction safety is greatly improved.
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Description

Technical fields:

[0001] This utility model relates to the field of fall arrestor technology, specifically to a safety fall arrestor for bored piles. Background technology:

[0002] During the drilling and grouting process, from mud injection and steel bar placement to the final concrete pouring, and sometimes even at night, every step requires worker assistance. There is always a risk of the pile falling into the hole. In the past, the auxiliary personnel did not have any support points or protective measures. Utility model content:

[0003] Therefore, this utility model provides a safety anti-fall support for bored piles to overcome the problems of the prior art.

[0004] This utility model is implemented by the following technical solution:

[0005] A safety fall arrestor for bored piles includes a base, a bracket detachably connected to the base, and a fall arrestor movably connected to the bracket. The fall arrestor is used to connect a safety belt and can sense abnormal acceleration or tension, and lock quickly when an abnormality is sensed.

[0006] Preferably, the base includes a base plate, a vacuum suction cup is fixedly connected to the side of the base plate, a positioning block is provided on the base plate, a limit hole is fixed on the positioning block, and a bolt is screwed onto the positioning block.

[0007] Preferably, the bracket includes a telescopic support rod, the bottom of which can be inserted into a limiting hole on the positioning block, a fixing rod fixed to the top of the telescopic support rod, and a spherical universal joint movably connected to the side end of the fixing rod, with the fall arrestor fixedly connected to the spherical universal joint.

[0008] Preferably, a connecting rib is fixedly connected between the side of the fixed rod and the side of the telescopic support rod.

[0009] Preferably, the telescopic support rod includes a first sleeve, a second sleeve, and a support rod; the second sleeve is slidably connected inside the first sleeve, and the support rod is slidably connected inside the second sleeve; locking bolts are screwed onto the first sleeve and the second sleeve respectively.

[0010] Preferably, a connecting assembly is provided between the telescopic support rod and the base plate. The connecting assembly is used to assist in stabilizing the telescopic support rod. The connecting assembly includes a connecting rod and a positioning member. One end of the connecting rod is hinged to the top surface of the base plate, and the other end is hinged to the positioning member. The positioning member can be locked onto the telescopic support rod.

[0011] Preferably, the positioning component includes two arc-shaped plates 7, which are arranged opposite each other and sleeved on the telescopic support rod; the two arc-shaped plates 7 are connected by bolts and nuts.

[0012] Preferably, a resistance wire is fixed inside the fall arrestor, and the resistance wire is electrically connected to the battery pack; the battery pack is fixed to the fall arrestor.

[0013] Preferably, the vacuum suction cup is used to attach the base to the surface being worked on, providing stable support.

[0014] Preferably, the fall arrestor can quickly lock through an internal mechanism to prevent people from falling when it senses abnormal acceleration or tension.

[0015] The advantages of this invention are: the fall arrestor can sense abnormal acceleration or tension in real time and quickly lock in place when a dangerous situation is detected. This design effectively prevents construction workers from accidentally falling while working at heights, greatly improving construction safety. Furthermore, through the coordinated work of the fall arrestor, telescopic support rod, and connecting components, a multi-layered protection mechanism is formed. Even in extreme situations where the fall arrestor fails, the telescopic support rod and connecting components can provide additional support and cushioning, further enhancing overall safety. Attached image description:

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure described in this utility model;

[0018] Figure 2 This is a side view of the structure described in this utility model.

[0019] In the diagram: 1. Fall arrestor; 2. Fixed rod; 3. Telescopic support rod; 4. Positioning block; 5. Base plate; 6. Vacuum suction cup; 7. Arc plate; 8. Connecting rod; 9. Resistance wire; 10. Battery pack. Detailed implementation method:

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0021] like Figure 1 , Figure 2 As shown in the figure, this embodiment provides a safety anti-fall support for bored piles, which is mainly used to provide safety protection for construction personnel and prevent fall accidents during the construction of bored piles.

[0022] The base is the fundamental support component of the entire bracket, and its specific structure is as follows:

[0023] The base plate 5, serving as the main body of the support, is made of sturdy metal, possessing sufficient strength and stability. Multiple vacuum suction cups 6 are fixedly connected to the sides of the base plate 5 to firmly adhere the base to the ground at the construction site, ensuring the stability of the entire support structure. The number of vacuum suction cups 6 can be adjusted according to the size of the base plate 5 and the actual conditions of the construction site; for example, 4 to 8 vacuum suction cups 6 can be installed. The vacuum suction cups 6 can be made of rubber, providing good sealing and suction power.

[0024] The positioning block 4 is fixed to the top surface of the base plate 5 to fix and support the telescopic support rod 3. The positioning block 4 has a limiting hole, the shape and size of which match the bottom of the telescopic support rod 3, ensuring accurate insertion and secure fixation. The positioning block 4 also has threaded holes for bolting. After the telescopic support rod 3 is inserted into the limiting hole, tightening the bolts further secures the telescopic support rod 3, preventing it from loosening or slipping.

[0025] The support structure is a key component connecting the base and the fall arrestor. Its specific structure is as follows:

[0026] The telescopic support rod 3 consists of three parts: First sleeve: the outermost sleeve, with internal threads for installing locking bolts. Second sleeve: nested inside the first sleeve, allowing axial sliding adjustment of its length; also with internal threads. Support rod: nested inside the second sleeve, similarly allowing sliding adjustment of its length.

[0027] By adjusting the extension length of the second sleeve and the support rod, the total length of the telescopic support rod 3 can be changed to adapt to construction environments at different heights.

[0028] Locking bolts are screwed onto the first and second sleeves respectively to fix the position of the second sleeve and the support rod and prevent them from sliding.

[0029] The fixed rod 2 is fixed to the top of the telescopic support rod 3, and its side end is movably connected to the fall arrestor 1 through a ball joint. The design of the ball joint allows the fall arrestor 1 to rotate freely within a certain angle range, thereby providing construction personnel with a larger space for movement.

[0030] The connecting rib is fixedly connected to the side of the fixed rod 2 and the side of the telescopic support rod 3 to enhance the connection strength between the fixed rod 2 and the telescopic support rod 3 and improve the overall stability of the bracket.

[0031] To further enhance the stability of the support structure, a connecting assembly is installed between the telescopic support rod 3 and the base plate 5, with the specific structure as follows:

[0032] One end of the connecting rod 8 is hinged to the top surface of the base plate 5, and the other end is hinged to the positioning component. The hinged design allows the connecting rod 8 to be flexibly adjusted at an angle to accommodate telescopic support rods 3 of different lengths.

[0033] The positioning component consists of two arc-shaped plates 7, which are arranged opposite each other and fitted onto the telescopic support rod 3. The two arc-shaped plates 7 are connected by bolts and nuts. By tightening the bolts, the positioning component can be securely locked onto the telescopic support rod 3. The design of the positioning component can effectively prevent the telescopic support rod 3 from tilting or slipping when subjected to external forces.

[0034] Fall arrestor 1 is the core safety component of the entire support structure, and its specific structure is as follows:

[0035] The fall arrestor 1 is connected to the construction worker via a safety belt. It can sense abnormal acceleration or tension and lock quickly to prevent the worker from falling. The fall arrestor 1 can use mechanical or electronic sensing devices, and the specific type can be selected according to actual needs.

[0036] The fall arrester 1 contains a fixed resistance wire 9, which is electrically connected to the battery pack 10. The resistance wire 9 provides additional safety; for example, in an emergency, heating the resistance wire 9 can trigger the fall arrester's locking mechanism. The battery pack 10 provides power to the resistance wire 9, and its capacity should be large enough to ensure that the fall arrester 1 can function normally during prolonged use.

[0037] Practical usage

[0038] Place the base in a suitable location on the construction site, ensuring the vacuum suction cup 6 is in close contact with the ground. Adjust the length of the telescopic support rod 3 to a height suitable for the workers' needs, and tighten the locking bolts and bolts on the positioning parts to securely fix the telescopic support rod 3 to the base. Connect the safety belt to the fall arrestor 1, ensuring a secure connection. During construction, the fall arrestor 1 will continuously monitor the workers' movement; if any abnormality is detected, it will immediately lock to prevent falls.

[0039] It is also necessary to regularly check the connections of all components of the bracket to ensure they are secure and reliable. Regularly check the suction force of the vacuum suction cup 6, cleaning or replacing it if necessary. Regularly check the function of the fall arrestor and the charge level of the battery pack 10. During use, strictly follow the operating procedures to avoid improper use that could cause safety hazards.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety anti-fall support for bored piles, characterized in that, Includes a base, on which a bracket is detachably connected, and on which a fall arrestor is movably connected, the fall arrestor being used to connect to a safety belt and capable of sensing abnormal acceleration or tension, and locking rapidly upon sensing an abnormality.

2. The safety anti-fall support for bored piles according to claim 1, characterized in that: The base includes a base plate, a vacuum suction cup is fixedly connected to the side of the base plate, a positioning block is provided on the base plate, a limit hole is fixed on the positioning block, and a bolt is screwed onto the positioning block.

3. The safety anti-fall support for bored piles according to claim 1, characterized in that: The bracket includes a telescopic support rod, the bottom of which can be inserted into a limiting hole on the positioning block. A fixing rod is fixed to the top of the telescopic support rod, and a spherical universal joint is movably connected to the side end of the fixing rod. The fall arrestor is fixedly connected to the spherical universal joint.

4. The safety anti-fall support for bored piles according to claim 3, characterized in that: A connecting rib is fixedly connected between the side of the fixed rod and the side of the telescopic support rod.

5. The safety anti-fall support for bored piles according to claim 3, characterized in that: The telescopic support rod includes a first sleeve, a second sleeve, and a support rod; the second sleeve is slidably connected inside the first sleeve, and the support rod is slidably connected inside the second sleeve; locking bolts are screwed onto the first sleeve and the second sleeve respectively.

6. The safety anti-fall support for bored piles according to claim 5, characterized in that: A connecting assembly is provided between the telescopic support rod and the base plate. The connecting assembly is used to assist in stabilizing the telescopic support rod. The connecting assembly includes a connecting rod and a positioning member. One end of the connecting rod is hinged to the top surface of the base plate, and the other end is hinged to the positioning member. The positioning member can be locked onto the telescopic support rod.

7. The safety anti-fall support for bored piles according to claim 6, characterized in that: The positioning component includes two arc-shaped plates, which are arranged opposite each other and fitted onto the telescopic support rod; the two arc-shaped plates are connected by bolts and nuts.

8. The safety anti-fall support for bored piles according to claim 1, characterized in that: A resistance wire is fixed inside the fall arrestor, and the resistance wire is electrically connected to the battery pack; the battery pack is fixed to the fall arrestor.

9. The safety anti-fall support for bored piles according to claim 2, characterized in that: The vacuum suction cup is used to attach the base to the surface being worked on, providing stable support.

10. The safety anti-fall support for bored piles according to claim 9, characterized in that: The fall arrestor can quickly lock in place through its internal mechanism when it senses abnormal acceleration or tension, preventing people from falling.