Temporary guardrail structure of bridge

Abstract

The utility model relates to the technical field of bridges, in particular to a bridge temporary guardrail structure which comprises a base, the top of the base is fixedly connected with a support, a U-shaped groove is formed in the support, a supporting plate is installed in the support, and the top of the supporting plate is in threaded connection with first railings used for blocking at equal intervals. The temporary bridge guardrail structure is characterized in that a support is installed on the support, a baffle is installed on the top of the support, second railings used for blocking are connected to the bottom of the baffle in an equidistant threaded mode, and a driving structure used for driving the second railings to ascend and descend is installed in the support. The first railings are connected with the supporting plate in a matched mode, and the second railings are connected with the baffle in a matched mode through internal splines and external splines. Through bevel gear meshing and threaded rod transmission, one worker can independently complete height adjustment through a rotary knob by means of the self-locking performance and transmission synchronism of a mechanical structure, and the height adjusting device has the advantages that the dismounting process is simplified, manual cooperation dependence is reduced, and stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of bridge technology, and in particular to a temporary bridge guardrail structure. Background Technology

[0002] Temporary bridge railings are protective facilities temporarily set up in scenarios such as bridge construction, maintenance, repair, or temporary passage. Their main function is to isolate the work area from the passage area, prevent people from accidentally entering, ensure construction and passage safety, and at the same time, divide the flow of vehicles and pedestrians and guide traffic order when passing through temporarily.

[0003] In existing technologies, such as Chinese Patent Publication No. CN218815680U, a temporary protective railing structure for bridge construction is disclosed. This device includes: two supports and a fence. The top of each of the two supports is provided with an installation groove. An L-shaped shell is fixed on the opposite side of each of the two supports. A sealing plate is installed at the opening of each L-shaped shell. An L-shaped post is provided inside each of the two installation grooves. A set of slots is provided on the opposite side of each of the two L-shaped posts, and there are several slots in each set. A rubber sealing sleeve is provided inside one of the slots in each set. This device, through the cooperation of the L-shaped shell, sealing plate, slots, rubber sealing sleeve, slider, spring, locking block, rectangular block and push rod, can adjust the height of the L-shaped post and fix it, that is, realize the height adjustment of the fence, that is, realize the height adjustment of the entire protective railing, effectively improve the use efficiency of the protective railing and improve the protective effect of the protective railing on the bridge construction site.

[0004] In the aforementioned patent, although the device can adjust the height of the guardrail, a large gap will be formed between the bottom guardrail and the ground after the round rod and the fence are raised, which can easily allow small animals, debris or pedestrians' feet to pass through, affecting the protective effect. In addition, the device requires two workers to operate in coordination when adjusting the height of the guardrail. Not only is the manpower investment large, but the adjustment process also requires the cooperation of the two people to control the synchronization, making the operation cumbersome and complicated, which affects work efficiency.

[0005] Therefore, it is necessary to provide a new temporary bridge guardrail structure to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a temporary bridge guardrail structure.

[0007] The temporary bridge guardrail structure provided by this utility model includes: a base, a bracket fixedly connected to the top of the base, an I-shaped groove opened inside the bracket, a support plate installed inside the bracket, a first guardrail for blocking connected at equal intervals on the top of the support plate, a baffle installed on the top of the bracket, a second guardrail for blocking connected at equal intervals on the bottom of the baffle, and a drive structure for driving the second guardrail to rise and fall inside the bracket.

[0008] Preferably, the drive assembly includes: a driving bevel gear, a driven bevel gear, a driving rod, a driven rod, and a threaded rod. The driving bevel gear is rotatably connected inside the support plate, and the driven bevel gear is rotatably connected inside the support plate. The driving bevel gear meshes with the driven bevel gear. The driving rod is fixedly connected to the shaft of the driven bevel gear. The driven rod is installed on the top of the driving rod. The threaded rod is fixedly connected to the bottom of the baffle and is threadedly connected to the driven rod.

[0009] Preferably, the second railing and the driven rod are both provided with internal splines at equal intervals, and the outer walls of the first railing and the driving rod are both fixedly connected with external splines at equal intervals, with the internal splines cooperating with the external splines.

[0010] Preferably, a first limiting post is symmetrically fixedly connected to one side of the support plate, and a second limiting post is symmetrically fixedly connected to the side of the support plate away from the first limiting post.

[0011] Preferably, one end of the driving bevel gear passes through the support plate and is fixedly connected to a knob.

[0012] Preferably, a telescopic rod is fixedly connected to the end of the baffle away from the threaded rod.

[0013] Preferably, the first limiting post is hollow inside, and the inner diameter of the first limiting post is equal to the diameter of the second limiting post.

[0014] Compared with related technologies, the temporary bridge guardrail structure provided by this utility model has the following beneficial effects:

[0015] Simplify the disassembly and assembly process:

[0016] The first railing and support plate, and the second railing and baffle of this device are connected by internal spline and external spline, which can be quickly disassembled and assembled without tools. Compared with the traditional welding or bolt fixing method, a single person can complete the disassembly of the components, avoiding the cumbersome operation of multiple people, greatly improving the transfer efficiency and reducing the labor input cost.

[0017] Reduce reliance on manual assistance:

[0018] This device uses bevel gear meshing and threaded rod transmission to convert the circular motion of the manual knob into the vertical lifting motion of the baffle. Utilizing the self-locking property of the mechanical structure and the synchronous transmission, a single worker can independently complete the height adjustment by turning the knob, avoiding the problems of guardrail tilting or adjustment jamming caused by asynchronous operation when two people cooperate in the traditional way. It is more convenient to operate and more stable.

[0019] Enhanced stability:

[0020] The first limiting post on one side of the support plate of this device is inserted into the second limiting post of other support plates during installation. They work together to achieve horizontal limiting constraint, which can effectively resist lateral displacement caused by wind or slight collision, make up for the lack of anti-tilting performance of traditional temporary guardrails, and improve structural reliability. Attached Figure Description

[0021] Figure 1 A schematic diagram of the temporary bridge guardrail structure provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the internal structure of the support frame.

[0023] Figure 3 for Figure 1 The diagram shows the structure of the first railing.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the driving component.

[0025] The following are the labels in the diagram: 1. Base; 2. Bracket; 3. C-groove; 4. Support plate; 5. First railing; 6. Baffle; 7. Second railing; 21. Driving bevel gear; 22. Driven bevel gear; 23. Driving rod; 24. Driven rod; 25. Threaded rod; 41. First limiting post; 42. Second limiting post; 51. Knob; 61. Telescopic rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] Please see Figures 1 to 4 A temporary bridge railing structure includes: a base 1, a bracket 2 fixedly connected to the top of the base 1, an I-shaped groove 3 inside the bracket 2, a support plate 4 installed inside the bracket 2, a first railing 5 for blocking connected at equal intervals at the top of the support plate 4, a baffle 6 installed on the top of the bracket 2, a second railing 7 for blocking connected at equal intervals at the bottom of the baffle 6, a drive structure for driving the second railing 7 to rise and fall inside the bracket 2, a first limiting post 41 symmetrically fixedly connected to one side of the support plate 4, and a second limiting post 42 symmetrically fixedly connected to the side of the support plate 4 away from the first limiting post 41, the first limiting post 41 being hollow inside, and the inner diameter of the first limiting post 41 being equal to the diameter of the second limiting post 42;

[0029] It should be noted that: the first limiting post 41 is fixedly connected to one side of the installed support plate 4, and the second limiting post 42 of the other support plate 4 is inserted into the first limiting post 41 so that the two support plates 4 are connected to each other.

[0030] Please see Figure 1 , Figure 3 and Figure 4 The drive assembly includes: a driving bevel gear 21, a driven bevel gear 22, a driving rod 23, a driven rod 24, and a threaded rod 25. The driving bevel gear 21 is rotatably connected inside the support plate 4, and the driven bevel gear 22 is rotatably connected inside the support plate 4. The driving bevel gear 21 meshes with the driven bevel gear 22. The driving rod 23 is fixedly connected to the shaft of the driven bevel gear 22. The driven rod 24 is installed on the top of the driving rod 23. The threaded rod 25 is fixedly connected to the bottom of the baffle 6. The threaded rod 25 is threadedly connected to the driven rod 24. The second railing 7 and the driven rod 24 are both provided with internal splines at equal intervals inside. The first railing 5 and the outer wall of the driving rod 23 are both fixedly connected with external splines at equal intervals. The internal splines and external splines cooperate. One end of the driving bevel gear 21 passes through the support plate 4 and is fixedly connected with a knob 51. The end of the baffle 6 away from the threaded rod 25 is fixedly connected with a telescopic rod 61.

[0031] It should be noted that: rotating the knob 51 on the outside of the rotating support plate 4 drives the driving bevel gear 21 to rotate, which in turn drives the driven bevel gear 22 to rotate. The driven bevel gear 22 drives the driving rod 23 to rotate synchronously. The driven rod 24 at the top of the driving rod 23 is connected to the threaded rod 25 at the bottom of the baffle 6 by a thread. When the driving rod 23 drives the driven rod 24 to rotate through the cooperation of the internal spline and the external spline, the threaded rod 25 moves upward along the axial direction, which drives the baffle 6 and the second railing 7 to rise.

[0032] The working principle of the temporary bridge guardrail structure provided by this utility model is as follows:

[0033] Install baffle 6 and support plate 4:

[0034] Multiple first railings 5 ​​are installed by threaded connection to support plate 4, multiple second railings 7 are installed by threaded connection to baffle 6, and the first railings 5 ​​and second railings 7 are connected by internal spline and external spline. At this time, support plate 4 is aligned with the I-shaped groove 3 opened inside bracket 2 and placed into the bottom of I-shaped groove 3. At this time, the internal spline on driven rod 24 is connected with the external spline on driving rod 23 to complete the installation of baffle 6 and support plate 4.

[0035] Adjust the height of the second railing 7:

[0036] The operator drives the active bevel gear 21 to rotate by rotating the knob 51 on the outside of the support plate 4. The driven bevel gear 22, which is engaged, drives the active rod 23 to rotate synchronously. The driven rod 24 at the top of the active rod 23 is connected to the threaded rod 25 at the bottom of the baffle 6 by threads. When the active rod 23 drives the driven rod 24 to rotate through the cooperation of the internal and external splines, the threaded rod 25 moves upward along the axis, driving the baffle 6 and the second railing 7 to rise. During this process, the telescopic rod 61 on the other side of the baffle 6 improves the stability of the baffle 6's upward movement. The spline connection ensures that the first railing 5 and the second railing 7 slide relative to each other. The height linkage adjustment of the double-layer railing can be achieved without the cooperation of two people. When the baffle 6 rises to the target height, the thread transmission accuracy of the threaded rod 25 can control the lifting distance of the second railing 7, so that the first railing 5 and the second railing 7 together form a continuous protective surface.

[0037] Install another support plate 4:

[0038] The first limiting post 41 is fixedly connected to one side of the installed support plate 4. The second limiting post 42 of the other support plate 4 is inserted into the first limiting post 41, so that the two support plates 4 cooperate and connect with each other to achieve horizontal limiting constraint. This can effectively resist lateral displacement caused by wind or slight collision, make up for the deficiency of the traditional temporary guardrail's insufficient anti-tilting performance, and improve the structural reliability.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A temporary bridge guardrail structure, characterized by, The utility model relates to a base (1), base (1) top fixedly connected with support (2), support (2) inside is provided with the slot (3) of chi type; Supporting plate (4), supporting plate (4) is installed in the inside of support (2), and the top of supporting plate (4) is screw threadedly connected with the first rail (5) for blocking at equal intervals; Baffle (6), the top of support (2) is installed with baffle (6), and the bottom of baffle (6) is screw threadedly connected with the second rail (7) for blocking at equal intervals; Driving structure, support (2) is installed with the driving structure for driving the lifting of second rail (7) in the inside. The driving assembly includes: driving bevel gear (21), driven bevel gear (22), driving rod (23), driven rod (24) and threaded rod (25), the inside of supporting plate (4) is rotatably connected with driving bevel gear (21), the inside of supporting plate (4) is rotatably connected with driven bevel gear (22), driving bevel gear (21) is engaged with driven bevel gear (22), the axis of driven bevel gear (22) is fixedly connected with driving rod (23), the top of driving rod (23) is installed with driven rod (24), the bottom of baffle (6) is fixedly connected with threaded rod (25), and threaded rod (25) is screwedly connected with driven rod (24).

2. The bridge temporary guardrail structure according to claim 1, characterized in that, Second rail (7) and the inside of driven rod (24) are all provided with internal spline at equal intervals, and the outer wall of first rail (5) and driving rod (23) is all fixedly connected with external spline at equal intervals, and internal spline is matched with external spline.

3. The bridge temporary guardrail structure according to claim 2, characterized in that, The one side of supporting plate (4) is fixedly connected with first limiting column (41) symmetrically, and the side, away from first limiting column (41) of supporting plate (4), is fixedly connected with second limiting column (42) symmetrically.

4. The bridge temporary guardrail structure according to claim 1, characterized by, One end of driving bevel gear (21) penetrates supporting plate (4) and is fixedly connected with knob (51).

5. The bridge temporary guardrail structure according to claim 1, wherein, The end, away from threaded rod (25) of baffle (6), is fixedly connected with telescopic rod (61).

6. The bridge temporary guardrail structure according to claim 1, characterized by The inside of first limiting column (41) is hollow, and the inner diameter of first limiting column (41) is equal to the diameter of second limiting column (42).

7. The bridge temporary guardrail structure according to claim 1, wherein ​

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