Steel trestle construction safety protection device
Patent Information
- Application Number
- CN202521711782.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-12
AI Technical Summary
[0002]在钢栈桥施工中，未安装桥面板前贝雷梁的安装属于临边、临水、高空作业，特别是打设下一跨钢管桩时，由于贝雷梁结构的特殊性，现场往往没有合适、稳固及高处的位置供作业人员挂设安全带以确保安全，施工人员常需将安全带临时绑扎在贝雷梁的杆件或连接板上，但是贝雷梁通常是由特定单元的钢架结构装配而成，工作人员将安全带绑扎在贝雷梁上后，安全带受贝雷梁限制，安全带无法在贝雷梁上随意移动，进而影响作业人员移动
[0015]本装置在贝雷梁上架设支撑柱，在支撑柱上固定钢丝绳以供作业人员挂设安全带以确保安全，安全带可以在钢丝绳上滑动，不影响作业人员移动，而且支撑柱以及钢丝绳均可安装和拆卸，便于将本装置移动到下一个施工区域。
Smart Images
Figure CN224664203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction safety protection technology, specifically a construction safety protection device for steel trestle bridges. Background Technology
[0002] In the construction of steel trestle bridges, the installation of Bailey bridge beams before the bridge deck is installed is an operation near the edge, near water, and at height. Especially when driving the next span of steel pipe piles, due to the special structure of Bailey bridge beams, there is often no suitable, stable, and high position on site for workers to hang safety belts to ensure safety. Construction workers often need to temporarily tie safety belts to the Bailey bridge beams or connecting plates. However, Bailey bridge beams are usually assembled from specific steel frame structures. After the workers tie the safety belts to the Bailey bridge beams, the safety belts are restricted by the Bailey bridge beams and cannot move freely on the Bailey bridge beams, which in turn affects the movement of the workers. Utility Model Content
[0003] To address the problems of the prior art, this utility model provides a safety protection device for steel trestle bridge construction, which forms a temporary support on the Bailey beam for workers to hang safety belts to ensure safety, without affecting the movement of workers.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device for steel trestle bridge construction, comprising support columns symmetrically arranged on a Bailey bridge beam, the lower end of the support column being provided with a clamping assembly for connecting to the Bailey bridge beam; a stabilizing cylinder is fixedly connected to the support column, a positioning column is fixedly connected inside the stabilizing cylinder, a steel wire rope is detachably connected to the positioning column, and a blocking block is fixedly connected to the upper end of the positioning column, the diameter of the blocking block being larger than the diameter of the positioning column.
[0005] Using the above structural design, a temporary support is formed on the Bailey beam, and steel wire ropes are fixed on the support columns for workers to hang safety belts to ensure safety. The safety belts can slide on the steel wire ropes without affecting the movement of workers.
[0006] Preferably, an annular groove is formed on the side wall of the positioning column, the steel wire rope passes through the annular groove, and a vertically upward opening groove is formed on the wall of the stabilizing cylinder.
[0007] By adopting the above structural design, after the end of the wire rope is connected to the positioning post, the wire rope is prevented from moving up and down, and the end of the wire rope is protected, making it easier for the wire rope to be placed into the inside of the stabilizing cylinder together with the positioning post.
[0008] Preferably, the outer side wall of the lower end of the positioning post is provided with an external thread, and the inner side wall of the stabilizing cylinder is provided with a thread structure that matches the lower end of the positioning post.
[0009] The above structural design uses a threaded structure to connect the positioning post and the stabilizing cylinder, making the connection quicker and more convenient.
[0010] Preferably, the blocking block has a hexagonal prism structure.
[0011] The above structural design makes it easy for workers to rotate the positioning column 3 with the help of tools.
[0012] Preferably, the lower end of the support column is fixedly connected to an upper clamping plate, a lower clamping plate is provided below the upper clamping plate, a plurality of fixing bolts are passed through the lower clamping plate, and through holes corresponding to the fixing bolts are opened on the upper clamping plate.
[0013] By adopting the above structural design, the Bailey beam is clamped by the upper and lower clamping plates and then fixed by fixing bolts, which can stably connect the support column to the Bailey beam.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This device uses support columns erected on Bailey beams, with steel wire ropes fixed to the support columns for workers to attach safety belts to ensure safety. The safety belts can slide on the steel wire ropes without affecting the movement of workers. Moreover, both the support columns and the steel wire ropes can be installed and removed, making it easy to move the device to the next construction area. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the present invention during construction and use;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model; Detailed Implementation
[0018] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a safety protection device for steel trestle bridge construction, including support columns 1 symmetrically arranged on Bailey beams, the lower end of the support columns 1 being provided with clamping components for connecting to the Bailey beams; a stabilizing cylinder 2 is fixedly connected to the support columns 1, a positioning column 3 is fixedly connected inside the stabilizing cylinder 2, a steel wire rope 4 is detachably connected to the positioning column 3, and a blocking block 31 is fixedly connected to the upper end of the positioning column 3, the diameter of the blocking block 31 being larger than the diameter of the positioning column 3, and the blocking block 31 having a hexagonal prism structure.
[0019] In this embodiment, the support column 1 adopts an I-beam structure.
[0020] An annular groove 32 is formed on the side wall of the positioning post 3. The annular groove 32 is formed in the middle of the positioning post 3. The steel wire rope 4 passes through the annular groove 32. A vertically upward opening groove 21 is formed on the wall of the stabilizing cylinder 2. The lower part of the opening groove 21 is a circular hole groove structure, and the upper part of the opening groove 21 is a cuboid groove structure. The upper part of the opening groove 21 is vertically upward, and the opening groove 21 extends from the middle of the stabilizing cylinder 2 to the top surface of the stabilizing cylinder 2.
[0021] When the positioning post 3 is installed into the stabilizing cylinder 2, the wire rope 4 moves downward along the opening groove 21. After the positioning post 3 is fully inserted into the stabilizing cylinder 2, the wire rope 4 reaches the lower end of the opening groove 21.
[0022] The blocking block 31 has a hexagonal columnar structure, which makes it easy for workers to rotate the positioning column 3 with the help of tools.
[0023] After the end of the wire rope 4 passes through the annular groove 32 of the positioning post 3, the end of the wire rope 4 is parallel to the main body of the wire rope 4. The worker uses the wire rope clip 6 to fix the end of the wire rope 4 to the main body of the wire rope 4. The worker installs the wire rope clip 6 according to the wire rope clip installation guide and precautions. The worker inserts the U-shaped ring 61 of the wire rope clip 6 from the end of the wire rope 4. The pressure plate 62 of the wire rope clip 6 is installed on the U-shaped ring 61 of the wire rope clip 6 from one side of the main body of the wire rope 4. The worker then uses a nut to install on the U-shaped ring 61 of the wire rope clip 6 and then rotates the nut to tighten it.
[0024] The lower end of the positioning post 3 has an external thread on its outer side wall, and the inner side wall of the stabilizing cylinder 2 has a thread structure that matches the lower end of the positioning post 3. The end of the wire rope 4 passes through the annular groove 32 of the positioning post 3, and the positioning post 3, carrying the wire rope 4, is installed downward into the stabilizing cylinder 2. Rotating the positioning post 3 connects it to the stabilizing cylinder 2 through the thread structure. The wire rope 4 moves downward along the opening groove 21. When the positioning post 3 is completely inside the stabilizing cylinder 2, the wire rope 4 reaches the lower end of the opening groove 21.
[0025] The lower end of the support column 1 is fixedly connected to the upper clamping plate 51, and a lower clamping plate 52 is provided below the upper clamping plate 51. Multiple fixing bolts 53 are passed through the lower clamping plate 52. Through holes corresponding to the fixing bolts 53 are opened on the upper clamping plate 51. Anti-slip pads are fixedly connected to the opposite surfaces of the upper clamping plate 51 and the lower clamping plate 52.
[0026] Working principle: First, the workers install support columns 1 on the Bailey beam. At least one pair of support columns 1 are installed on the Bailey beam, and steel wire ropes 4 are strung between the support columns 1. The workers place the upper clamping plate 51 and the lower clamping plate 52 on the upper and lower sides of the Bailey beam respectively. Then, the workers pass the fixing bolts 53 through the upper clamping plate 51, the Bailey beam, and the lower clamping plate 52 from bottom to top. The workers then put the fixing nuts on the upper end of the fixing bolts 53 and tighten the fixing nuts with a wrench.
[0027] Next, the workers install wire rope 4. After the end of wire rope 4 passes through the annular groove 32 of the positioning post 3, the workers install the positioning post 3 into the stabilizing cylinder 2. The positioning post 3, along with the wire rope 4, is installed downwards into the stabilizing cylinder 2. The positioning post 3 is rotated to connect the positioning post 3 and the stabilizing cylinder 2 through the threaded structure. The wire rope 4 moves downwards along the opening groove 21. When the positioning post 3 is completely inside the stabilizing cylinder 2, the wire rope 4 reaches the lower end of the opening groove 21. The workers then pull the end of the wire rope 4 to adjust its length. The rope end of wire rope 4 is placed side by side with the main body of wire rope 4. The workers install wire rope clip 6 according to the wire rope clip installation guide and precautions. The wire rope clip 6 is used to fix the rope end of wire rope 4 to the main body of wire rope 4. The workers insert the U-shaped ring 61 of wire rope clip 6 from the rope end side of wire rope 4. The pressure plate 62 of wire rope clip 6 is installed on the U-shaped ring 61 of wire rope clip 6 from the side of the main body of wire rope 4. The workers then use a nut to install on the U-shaped ring 61 of wire rope clip 6 and then turn the nut to tighten it.
[0028] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.
[0029] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.
Claims
1. A safety protection device for steel trestle bridge construction, comprising support columns (1) symmetrically arranged on Bailey beams, characterized in that: The lower end of the support column (1) is provided with a clamping assembly for connecting to the Bailey beam; a stabilizing cylinder (2) is fixedly connected to the support column (1), a positioning column (3) is fixedly connected inside the stabilizing cylinder (2), a steel wire rope (4) is detachably connected to the positioning column (3), and a blocking block (31) is fixedly connected to the upper end of the positioning column (3), the diameter of the blocking block (31) being larger than the diameter of the positioning column (3).
2. The safety protection device for steel trestle bridge construction according to claim 1, characterized in that: An annular groove (32) is provided on the side wall of the positioning column (3), and the steel wire rope (4) passes through the annular groove (32). A vertically upward opening groove (21) is provided on the cylinder wall of the stabilizing cylinder (2).
3. The safety protection device for steel trestle bridge construction according to claim 2, characterized in that: The lower end of the positioning post (3) is provided with an external thread on the outer side wall, and the inner side wall of the stabilizing cylinder (2) is provided with a thread structure that matches the lower end of the positioning post (3).
4. The safety protection device for steel trestle bridge construction according to claim 3, characterized in that: The blocking block (31) has a hexagonal prism structure.
5. A safety protection device for steel trestle bridge construction according to any one of claims 1 to 4, characterized in that: The lower end of the support column (1) is fixedly connected to the upper clamping plate (51), and a lower clamping plate (52) is provided below the upper clamping plate (51). Multiple fixing bolts (53) are passed through the lower clamping plate (52), and through holes corresponding to the fixing bolts (53) are opened on the upper clamping plate (51).