Safety device for high-altitude operation of cast-in-place beam

Abstract

The utility model belongs to railway bridge construction technical field, concretely is a cast -in -situ beam aerial work safety device, including support pole, drawstring, pre -compaction block ground anchor and safety rope, support pole, drawstring and pre -compaction block ground anchor all set up a pair, the bottom of support pole is used for inserting support pad stone reserved hole, pre -compaction block ground anchor is fixed on the ground, drawstring is connected between support pole and pre -compaction block ground anchor, the both ends of safety rope are connected with two support poles respectively, are used for hanging safety belt. The utility model has the advantages of simple structure, convenient to use, and solves the problem that the safety belt of operating personnel has no place to hang in the construction process of cast -in -situ beam.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge construction technology; specifically, it relates to a safety device for high-altitude operations on cast-in-place beams. Background Technology

[0002] The construction of cast-in-place railway beam supports is a high-altitude operation. Because there is no fixed location above the supports for workers to fasten their safety belts, and workers must move back and forth while working above the supports, the existing safety measures for cast-in-place beam construction only include 1.2m high edge protection around the supports, which cannot fully guarantee the personal safety of construction workers. Utility Model Content

[0003] In view of this, the present invention provides a safety device for high-altitude operations on cast-in-place beams, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a safety device for high-altitude operations on cast-in-place beams, comprising a support rod, a pull rope, a preload block anchor, and a safety rope. Each support rod, pull rope, and preload block anchor is provided in pairs. The bottom end of the support rod is used to insert into a pre-drilled hole in the bearing pad stone. The preload block anchor is fixed to the ground. The pull rope connects the support rod and the preload block anchor. The two ends of the safety rope are respectively connected to the two support rods for attaching a safety belt.

[0005] Preferably, the support rod is provided with two upper connecting blocks and a lower connecting block that can be displaced in the height direction. The upper connecting block and the lower connecting block are respectively connected to the end of the safety rope and the top of the pull rope. A pull screw is rotatably installed on the lower connecting block, and the top of the pull screw is threadedly connected to the upper connecting block.

[0006] Preferably, the top end of the support rod is provided with an arc-shaped rope groove, and the end of the pull rope passes around the rope groove and extends downward from the outside of the support rod and connects to the upper connecting block.

[0007] Preferably, the support rod includes a rod body, a rod head, and side rods. The side rods connect the rod body and the rod head. The bottom end of the rod body is used to insert into the pre-drilled hole of the support pad stone. Four side rods are provided, and the four side rods are centrally symmetrically distributed around the support rod. The upper connecting block and the lower connecting block are slidably sleeved on the four side rods.

[0008] Preferably, the side rod is fixedly connected to the rod head and slidably connected to the rod body. A top rod is threadedly installed at the bottom end of the side rod, a pad is slidably sleeved on the outside of the rod body, and the bottom end of the top rod can press down on the pad.

[0009] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This device can be operated by two people, saving manpower and energy, and is low-carbon and environmentally friendly.

[0010] 2. This device has a simple structure, is easy to transport, and solves the problem of personal safety hazards caused by the lack of a place for construction workers to fasten their safety belts during the construction of cast-in-place beams.

[0011] 3. The components of this device are all commonly used in construction, easy to process and mass-produce.

[0012] 4. This device has a small cross-section, does not affect the on-site construction of the cast-in-place beam, is easy to use, has strong applicability, and is convenient for widespread use. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support rod of this utility model.

[0014] Reference numerals in the attached diagram: 1-Support rod; 1.1-Rod body; 1.2-Rod head; 1.3-Side rod; 2-Pull rope; 3-Preload block ground anchor; 4-Safety rope; 5-Upper connecting block; 6-Lower connecting block; 7-Pull screw; 8-Rope groove; 9-Top rod; 10-Pad plate. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] like Figure 1 and Figure 2 As shown, this embodiment provides a safety device for high-altitude operations on cast-in-place beams, including a support rod 1, a pull rope 2, a preload block anchor 3, and a safety rope 4. Each support rod 1, pull rope 2, and preload block anchor 3 is provided in pairs. The bottom end of the support rod 1 is used to insert into the reserved hole of the support pad stone. The preload block anchor 3 is fixed to the ground. The pull rope 2 is connected between the support rod 1 and the preload block anchor 3. The two ends of the safety rope 4 are respectively connected to the two support rods 1 for attaching safety belts.

[0017] Before performing high-altitude work on cast-in-place beams, support rod 1 is inserted into the reserved hole of the bearing pad stone. Then, the two ends of the pull rope 2 are connected to the support rod 1 and the pre-stressing block anchor 3 respectively. Finally, the two ends of the safety rope 4 are connected to the two support rods 1 respectively. At this time, the support rod 1 is fixed by the cooperation of the reserved hole of the bearing pad stone, the pull rope 2 and the pre-stressing block anchor 3. The two support rods 1 fix the safety rope 4. When workers perform high-altitude work on cast-in-place beams, they can wear safety belts to improve the safety of high-altitude work on cast-in-place beams.

[0018] The support rod 1 is equipped with two upper connecting blocks 5 and lower connecting blocks 6 that can be displaced in the height direction. The upper connecting blocks 5 and lower connecting blocks 6 are respectively connected to the end of the safety rope 4 and the top of the pull rope 2. A pull screw 7 is rotatably installed on the lower connecting block 6, and the top of the pull screw 7 is threadedly connected to the upper connecting block 5.

[0019] Both the upper connecting block 5 and the lower connecting block 6 are fixed with lifting rings, and the ends of the safety rope 4 and the pull rope 2 can be connected to the lifting rings via hooks.

[0020] In the initial state, the distance between the upper connecting block 5 and the lower connecting block 6 is fixed by the pull screw 7. After the pull rope 2 and the safety rope 4 are connected, rotating the pull screw 7 causes the upper connecting block 5 and the lower connecting block 6 to tighten the safety rope 4 and the pull rope 2 respectively, thus tauting both the safety rope 4 and the pull rope 2. Especially after the pull rope 2 is taut, the lower connecting block 6 cannot continue to move upward, which forces the safety rope 4 to tighten.

[0021] The top of the support rod 1 is provided with an arc-shaped rope groove 8. The end of the pull rope 2 passes through the rope groove 8 and extends downward from the outside of the support rod 1 and connects to the upper connecting block 5. When the end of the safety rope 4 is connected to the upper connecting block 5, the safety rope 4 is located in the rope groove 8. The rope groove 8 can limit the safety rope 4, thereby improving the suspension stability of the safety rope 4.

[0022] In this embodiment, the support rod 1 includes a rod body 1.1, a rod head 1.2, and side rods 1.3. The side rods 1.3 connect the rod body 1.1 and the rod head 1.2. The bottom end of the rod body 1.1 is used to insert into the pre-drilled hole of the support pad stone. There are four side rods 1.3, which are centrally symmetrically distributed around the support rod 1. The upper connecting block 5 and the lower connecting block 6 are slidably fitted onto the four side rods 1.3. The rope groove 8 is provided at the top of the rod head 1.2. The side rods 1.3 slidably mount the upper connecting block 5 and the lower connecting block 6 onto the support rod 1 in the height direction.

[0023] Side rod 1.3 is fixedly connected to rod head 1.2, and side rod 1.3 is slidably connected to rod body 1.1. A top rod 9 is threadedly installed at the bottom end of side rod 1.3, and a pad 10 is slidably sleeved on the outside of rod body 1.1. The bottom end of top rod 9 can press down on pad 10.

[0024] When the bottom end of the rod 1.1 is inserted into the reserved hole of the support pad, the pad 10 will be displaced on the rod 1.1, and the bottom of the pad 10 will be supported by the top of the support pad.

[0025] As the safety rope 4 is tightened, it applies downward pressure to the pole head 1.2. At this time, the top rod 9 presses down on the pad 10, thus stably pressing the pad 10 against the top of the support stone. The pad 10, with its large contact surface with the top of the support stone, effectively reduces the swaying of the pole 1.1, thereby improving the stability of the safety rope 4.

[0026] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A safety device for high-altitude operations involving cast-in-place beams, characterized in that, The system includes a support rod (1), a pull rope (2), a pre-stressing block anchor (3), and a safety rope (4). Each of the support rod (1), pull rope (2), and pre-stressing block anchor (3) is provided in pairs. The bottom end of the support rod (1) is used to insert into the reserved hole of the support pad stone. The pre-stressing block anchor (3) is fixed to the ground. The pull rope (2) is connected between the support rod (1) and the pre-stressing block anchor (3). The two ends of the safety rope (4) are respectively connected to the two support rods (1) for attaching safety belts.

2. The safety device for high-altitude operations on cast-in-place beams as described in claim 1, characterized in that, The support rod (1) is provided with two upper connecting blocks (5) and lower connecting blocks (6) that can be displaced in the height direction. The upper connecting blocks (5) and the lower connecting blocks (6) are respectively connected to the end of the safety rope (4) and the top of the pull rope (2). A pull screw (7) is rotatably installed on the lower connecting block (6), and the top of the pull screw (7) is threadedly connected to the upper connecting block (5).

3. A safety device for high-altitude operations on cast-in-place beams as described in claim 2, characterized in that, The top of the support rod (1) is provided with an arc-shaped rope groove (8), and the end of the pull rope (2) extends downward from the outside of the support rod (1) after passing through the rope groove (8) and is connected to the upper connecting block (5).

4. A safety device for high-altitude operations on cast-in-place beams as described in claim 2, characterized in that, The support rod (1) includes a rod body (1.1), a rod head (1.2), and a side rod (1.3). The side rod (1.3) connects the rod body (1.1) and the rod head (1.2). The bottom end of the rod body (1.1) is used to insert into the reserved hole of the support pad stone. There are four side rods (1.3). The four side rods (1.3) are centrally symmetrically distributed in the circumference of the support rod (1). The upper connecting block (5) and the lower connecting block (6) are slidably sleeved on the four side rods (1.3).

5. A safety device for high-altitude operations on cast-in-place beams as described in claim 4, characterized in that, The side rod (1.3) is fixedly connected to the rod head (1.2), and the side rod (1.3) is slidably connected to the rod body (1.1). A top rod (9) is threadedly installed at the bottom end of the side rod (1.3). A pad (10) is slidably sleeved on the outside of the rod body (1.1), and the bottom end of the top rod (9) can press down on the pad (10).

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