Detachable temporary guardrail stand column embedded in bridge deck slab

Abstract

The detachable temporary guardrail stand column embedded in the bridge deck slab comprises a stand column body, a base is welded to the bottom of the stand column body, a handrail is arranged on the top of the stand column body, the base comprises channel steel, the number of the channel steel is two, one end of the channel steel is welded, a notch is formed in the other end of the channel steel, a plurality of nuts are welded to the base, and threaded rods are connected to the nuts in a threaded mode. A fixing device is arranged on the stand column body and comprises a fixing sleeve, a moving groove is formed in the circumferential direction of the fixing sleeve, a clamping rod is arranged on the moving groove in a sliding mode, a clamping plate is arranged at one end of the clamping rod, a moving block is arranged at the other end of the clamping rod, and an extrusion block is arranged in the moving groove in a sliding mode. The base is installed on a steel plate of a bridge deck through the notch, the bottom of the threaded rod is pressed on the steel plate of the bridge deck through cooperation of the nut and the threaded rod, the stand column body is welded to the base through I-shaped steel and installed on a fixing device through the handrail, and construction is protected.

Description

Technical Field

[0001] This utility model relates to the field of safe construction technology, and more specifically, it relates to a detachable temporary guardrail post embedded in a bridge deck. Background Technology

[0002] In the field of modern engineering construction, safety is always the top priority. With the continuous advancement of engineering technology and the increasingly stringent construction standards, the requirements for safety protection facilities at construction sites are also constantly increasing. Especially in some special or complex construction environments, such as the demolition of trestle bridges and high-altitude operations, traditional safety protection measures are often insufficient to fully meet the construction needs. Taking the demolition of trestle bridges as an example, this process often requires the removal of the original cables and distribution boxes in order to carry out subsequent construction work. However, in order to ensure the safety of construction personnel, temporary guardrails must be set up in some areas during the demolition process to prevent people from falling or other safety accidents.

[0003] The traditional approach is to weld guardrails on-site when needed. However, this is not only time-consuming and labor-intensive, but also clearly unsatisfactory when welding is inconvenient or there is no power supply. In addition, as construction progresses, the temporary guardrails of the steel trestle bridge may need to be frequently disassembled and moved to adapt to different construction stages and site conditions. Traditional fixed guardrails have great limitations in this regard. They are not only difficult to disassemble and assemble, but also difficult to adapt to the changing construction environment. Moreover, steel pipe railings are usually directly slidably installed on the posts, which are prone to displacement under external forces, resulting in incomplete protection and leaving safety hazards. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a detachable temporary guardrail post embedded in the bridge deck, thereby solving the technical problem mentioned in the background art of temporary guardrails being difficult to install and prone to shifting.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a detachable temporary guardrail post embedded in a bridge deck, comprising a post body, a base welded to the bottom of the post body, and a railing on the top. The base includes channel steel, and two channel steels are provided, which are tightly interlocked in the same direction, welded at one end and having a groove at the other end. Multiple nuts are welded to the base, and threaded rods are threadedly connected to the nuts. A fixing device is provided on the post body, and the fixing device includes a fixing sleeve. The fixing sleeve has a moving groove in its circumference, and a clamping rod is slidably provided on the moving groove. One end of the clamping rod has a clamping plate, and the other end has a moving block. A pressing block is slidably provided in the moving groove.

[0008] The present invention is further provided with a moving spring between the moving block and the moving groove, so as to facilitate the moving block to move and reset.

[0009] The present invention is further configured such that an extrusion rod is provided on one side of the extrusion block, and an extrusion ring is provided at one end of the extrusion rod, thereby moving the position of the extrusion block by means of the extrusion ring and the extrusion rod.

[0010] The present invention is further configured such that a movable sleeve is threadedly connected to the fixed sleeve, and the movable sleeve is provided with an extrusion groove that cooperates with the extrusion ring, thereby moving the position of the extrusion ring by means of the movable sleeve.

[0011] The present invention is further provided that a fastening pad is attached to the bottom of the threaded rod, which improves the connection friction between the threaded rod and the bridge deck steel plate.

[0012] The present invention is further configured such that the contact surface between the extrusion block and the moving block is an inclined surface, which facilitates the movement of the moving block by the extrusion block.

[0013] The present invention is further provided with protective caps on the threaded rod and nut to prevent dust and other impurities from clogging the threaded rod and nut, thus affecting the disassembly and reuse of the column body and base.

[0014] The present invention is further provided that the protective cap is provided with a threaded cap, and the threaded cap is threadedly connected to the threaded rod, which facilitates the installation of the protective cap.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a detachable temporary guardrail post embedded in the bridge deck, which has the following advantages:

[0017] 1. The base is formed by welding two channel steels together. The base is installed on the steel plate of the bridge deck through the slot. The bottom of the threaded rod is pressed into the steel plate of the bridge deck by the cooperation of the nut and the threaded rod and the fastening washer. The main body of the column is made of I-beam welded to the base and installed on the fixing device through the railing to protect the construction.

[0018] 2. The extrusion ring drives the extrusion rod and extrusion block to move. The extrusion block extrudes the moving block, which in turn drives the clamping rod and clamping plate to clamp the railing, making it easier to install and fix the railing and improving the convenience and stability of the railing installation.

[0019] 3. Protective caps are fitted onto the threaded rod and nut, and the threaded rod and nut are fixed in place by the fit of the threaded caps and threaded nuts, so as to prevent dust and impurities from clogging the threaded rod and nut. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cooperative structure of the column body, base and railing in this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the base body in this utility model;

[0022] Figure 3 This is a cross-sectional view of the protective cap in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the fixing device in this utility model;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of a portion of the structure of A.

[0025] In the diagram: 1. Main column; 2. Base; 3. Railing; 4. Channel steel; 5. Groove; 6. Nut; 7. Threaded rod; 8. Fixed sleeve; 9. Moving groove; 10. Clamping rod; 11. Clamping plate; 12. Moving block; 13. Extrusion block; 14. Moving spring; 15. Extrusion rod; 16. Extrusion ring; 17. Moving sleeve; 18. Extrusion groove; 19. Fastening pad; 20. Protective cap; 21. Threaded cap. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A detachable temporary guardrail post embedded in a bridge deck includes a post body 1, a base 2 welded to the bottom of the post body 1, and a railing 3 on the top. The base 2 includes channel steel 4, and there are two channel steels 4. The two channel steels 4 are tightly interlocked in the same direction, with one end welded and the other end having a groove 5. Multiple nuts 6 are welded on the base 2, and threaded rods 7 are threadedly connected to the nuts 6. A fixing device is provided on the post body 1. The fixing device includes a fixing sleeve 8. The fixing sleeve 8 has a moving groove 9 around its circumference. A clamping rod 10 is slidably provided on the moving groove 9. A clamping plate 11 is provided at one end of the clamping rod 10, and a moving block 12 is provided at the other end. A pressing block 13 is slidably provided in the moving groove 9. A fastening pad 19 is pasted to the bottom of the threaded rod 7. A protective cap 20 is provided on the threaded rod 7 and the nuts 6. A threaded cap 21 is provided on the protective cap 20 and threadedly connected to the threaded rod 7.

[0030] In this embodiment, when assembling the base 2, two 350mm long No. 10 channel steels 4 are tightly interlocked in the same direction, and a 100mm weld is used to achieve a stable connection at one end. At the other end, a 250mm gap is left, and a slot 5 slightly wider than the bridge deck steel plate (12mm larger) is cut in this gap for subsequent connection to the bridge deck steel plate. The main body 1 of the column is made of No. 10 I-beam welded to the base 2. The upper end of the I-beam has a double-layer hole design. During installation, only the bottom... The slot 5 of seat 2 is inserted into one side of the bridge deck steel plate. Then, the threaded rod 7 is screwed into the nut 6. The frictional resistance generated by the pressure after tightening the threaded rod 7 and the fastening washer 19 can stably install the base 2 on the bridge deck. The railing 3 is installed on the hole and fixing device of the column body 1 using steel pipe. The protective cap 20 is installed on the threaded rod 7 through the threaded cap 21, so that the bottom of the protective cap 20 is fitted on the nut 6, preventing impurities and dust from clogging the nut 6 and the threaded rod 7, and improving the convenience of disassembly.

[0031] Please see Figures 4-5 As one embodiment of the fixing device: a moving spring 14 is provided between the moving block 12 and the moving groove 9, a pressing rod 15 is provided on one side of the pressing block 13, a pressing ring 16 is provided at one end of the pressing rod 15, a moving sleeve 17 is threadedly connected to the fixing sleeve 8, a pressing groove 18 that cooperates with the pressing ring 16 is provided on the moving sleeve 17, and the contact surface between the pressing block 13 and the moving block 12 is an inclined surface.

[0032] More specifically, when installing the railing 3 on the column body 1, the railing 3 is passed through the fixed sleeve 8, and the movable sleeve 17 is rotated. The movable sleeve 17 squeezes the squeezing ring 16 through the squeezing groove 18. The squeezing ring 16 drives the squeezing block 13 to move towards the movable block 12. The movable block 12 squeezes the movable spring 14 and the clamping rod 10, so that the clamping plate 11 clamps and fixes the railing 3 to prevent the railing 3 from shifting. When disassembling the railing 3, the movable sleeve 17 is rotated in the opposite direction. The movable sleeve 17 drives the squeezing plate, squeezing rod 15 and squeezing block 13 to reset. The elastic force of the movable spring 14 drives the movable block 12 to move in the opposite direction, so that the clamping plate 11 moves in the opposite direction and the railing 3 is disassembled.

[0033] In summary, during the use or operation of the overall equipment: when assembling the base 2, two 350mm long No. 10 channel steels 4 are tightly interlocked in the same direction, with a 100mm weld at one end for a stable connection. At the other end, a 250mm gap is left, and a slot 5 slightly wider than the bridge deck steel plate (12mm larger) is cut in this gap for subsequent connection to the bridge deck steel plate. The main column 1 is made of No. 10 I-beams welded to the base 2. The upper end of the I-beam has a double-layer hole design. During installation... Simply insert the slot 5 of the base 2 into one side of the bridge deck steel plate, and then screw the threaded rod 7 into the nut 6. The frictional resistance generated by the pressure after tightening the threaded rod 7 and the fastening washer 19 can stably install the base 2 on the bridge deck. The railing 3 is installed on the hole and fixing device of the column body 1 using steel pipe. The protective cap 20 is installed on the threaded rod 7 through the threaded cap 21, so that the bottom of the protective cap 20 is fitted on the nut 6, preventing impurities and dust from clogging the nut 6 and the threaded rod 7, and improving the convenience of disassembly.

[0034] When installing the railing 3 on the column body 1, the railing 3 is passed through the fixed sleeve 8, and the movable sleeve 17 is rotated. The movable sleeve 17 squeezes the squeezing ring 16 through the squeezing groove 18. The squeezing ring 16 drives the squeezing block 13 to move towards the movable block 12. The movable block 12 squeezes the movable spring 14 and the clamping rod 10, so that the clamping plate 11 clamps and fixes the railing 3 to prevent the railing 3 from shifting. When disassembling the railing 3, the movable sleeve 17 is rotated in the opposite direction. The movable sleeve 17 drives the squeezing plate, squeezing rod 15 and squeezing block 13 to reset. The elastic force of the movable spring 14 drives the movable block 12 to move in the opposite direction, so that the clamping plate 11 moves in the opposite direction and the railing 3 is disassembled.

[0035] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A removable temporary guardrail post embedded in a bridge deck panel, characterized by: The system includes a column body (1), a base (2) welded to the bottom of the column body (1), and a railing (3) on the top. The base (2) includes a channel steel (4), and there are two channel steels (4) that are tightly interlocked in the same direction. One end is welded and the other end is provided with a groove (5). Multiple nuts (6) are welded on the base (2), and threaded rods (7) are threadedly connected to the nuts (6). A fixing device is provided on the column body (1), and the fixing device includes a fixing sleeve (8). The fixing sleeve (8) is provided with a moving groove (9) in the circumference. A clamping rod (10) is slidably provided on the moving groove (9). One end of the clamping rod (10) is provided with a clamping plate (11) and the other end is provided with a moving block (12). An extrusion block (13) is slidably provided in the moving groove (9).

2. A detachable temporary guardrail post embedded in a bridge deck according to claim 1, characterized in that: A moving spring (14) is provided between the moving block (12) and the moving groove (9).

3. A removable temporary guardrail post embedded in a bridge deck panel according to claim 1, characterized in that: The extrusion block (13) has an extrusion rod (15) on one side, and an extrusion ring (16) is provided at one end of the extrusion rod (15).

4. A removable temporary guardrail post embedded in a bridge deck panel according to claim 3, characterized in that: The fixed sleeve (8) is threadedly connected to a movable sleeve (17), and the movable sleeve (17) is provided with an extrusion groove (18) that cooperates with the extrusion ring (16).

5. A removable temporary guardrail post embedded in a bridge deck panel according to claim 1, characterized in that: The bottom of the threaded rod (7) is fitted with a fastening pad (19).

6. A removable temporary guardrail post embedded in a bridge deck panel according to claim 1, characterized in that: The contact surfaces of the extrusion block (13) and the moving block (12) are inclined surfaces.

7. A removable temporary guardrail post embedded in a bridge deck panel according to claim 1, characterized in that: The threaded rod (7) and the nut (6) are provided with protective caps (20).

8. A removable temporary guardrail post embedded in a bridge deck panel according to claim 7, characterized in that: The protective cap (20) is provided with a threaded cap (21), which is threadedly connected to the threaded rod (7).

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