Protective fence for roads and bridges

Abstract

The utility model provides a protective fence for roads and bridges, and mainly relates to the technical field of roads and bridges. A protective fence for roads and bridges comprises a protective fence body and a stand column, a screw rod is rotationally arranged in the stand column, two pressing plates are arranged on the outer ring of the screw rod at intervals, two baffles are fixedly arranged on the inner wall of the stand column at intervals, the top of each baffle abuts against a first connecting block, and a second connecting block is hinged to the interior of each first connecting block; the tops of the first connecting blocks abut against the corresponding baffles, and double-end studs are arranged on the first connecting blocks and the second connecting blocks. The protective fence connecting device has the advantages that one end of each double-end stud is in threaded connection with the protective fence, the other end of each double-end stud is connected with the corresponding sleeve, and the two protective fences are connected together by rotating the threaded sleeves for fixing; the two connecting blocks are connected in a hinged mode, and the angle between the two sleeves can be adjusted, so that the angle between the two protective fences is adjusted, and then the protective fences at the corners of the road are connected and fixed.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of roads and bridges, in particular to a guardrail for roads and bridges. Background Art

[0002] Road and bridge guardrails refer to protective guardrails installed on road and bridges. Their purpose is to prevent out-of-control vehicles from going over the bridge. They have the functions of preventing vehicles from breaking through, passing under, or climbing over the bridge and beautifying the bridge structure. In daily life, bridge guardrails are an indispensable safety protection device on bridges.

[0003] Existing bridge guardrails are often designed to be fixedly connected, with two adjacent guardrails fixed and welded to each other. When individual guardrails are damaged, they often need to be disassembled separately. However, since the guardrails are welded to each other, disassembly is very difficult. Utility Model Content

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A guardrail for a road bridge comprises a guardrail body and a column, wherein a screw is rotatably arranged inside the column, two pressure plates are arranged at intervals on the outer ring of the screw, and two baffles are fixedly arranged at intervals on the inner wall of the column, the top of each baffle abuts against a first connecting block, each of the first connecting blocks is hingedly connected to a second connecting block, the top of the first connecting block abuts against the corresponding baffle, and both the first connecting block and the second connecting block are provided with studs.

[0006] The first sleeve and the second sleeve are fixedly arranged on the outer rings of the first connecting block and the second connecting block respectively. The first sleeve passes through the side of the column and is fixedly connected. The outer ring of the column is provided with through grooves at intervals. The second sleeve passes through the through grooves. The outer rings of the first sleeve and the second sleeve are both provided with threaded sleeves and the interiors are both slidably connected with corresponding studs. The threaded sleeves are threadedly connected to the studs.

[0007] The outer rings of the first sleeve and the second sleeve are both fixedly provided with retaining rings, the inner ring of the screw sleeve is provided with a groove, and the retaining ring abuts against the inner wall of the groove.

[0008] Two threaded holes are arranged at intervals on the side of the guardrail body, and the other end of the stud is threadedly connected with the corresponding threaded holes.

[0009] The inner wall of the first connecting block abuts against the top and bottom of the second connecting block, the screw passes through the first connecting block and the second connecting block and is rotatably connected, the outer ring of the pressure plate is symmetrically fixed with protrusions, the inner wall of the column is symmetrically provided with sliding grooves, the protrusions abut against the inner walls of the sliding grooves, the screw drives the baffle to move radially and abut against the top of the first sleeve, the bottom of the screw is rotatably connected to the bottom of the inner wall of the column, the top of the screw passes through the top of the column and a hexagonal nut is fixed on the top.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model has a simple structure and is easy to install and use. One end of the double-headed stud is threadedly connected to the guardrail, and the other end is connected to the corresponding sleeve. The screw sleeve is rotated to fix the two guardrails together. The two connecting blocks are hingedly connected, and the angle between the two sleeves can be adjusted, so as to adjust the angle between the two guardrails, thereby adapting to the connection and fixation of the guardrails at the corners of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Attached Figure 2 It is a schematic diagram of the column structure of the utility model;

[0014] Attached Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0015] Attached Figure 4 It is a schematic diagram of the exploded structure of the utility model.

[0016] The numbers shown in the accompanying drawings are: 1, guardrail body; 2, column; 201, through groove; 202, slide groove; 3, screw; 301, hexagonal nut; 4, pressure plate; 401, protrusion; 5, baffle; 6, first connecting block; 601, first sleeve; 7, second connecting block; 701, second sleeve; 8, stud; 9, screw sleeve; 10, retaining ring. DETAILED DESCRIPTION

[0017] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0018] In conjunction with the accompanying drawings, a guardrail for a road bridge includes a guardrail body 1 and a column 2, a screw rod 3 is rotatably arranged inside the column 2, two pressure plates 4 are spaced apart on the outer circle of the screw rod 3, two baffles 5 are fixedly spaced apart on the inner wall of the column 2, the top of each baffle plate 5 abuts against a first connecting block 6, each of the first connecting blocks 6 is hingedly connected to a second connecting block 7, the top of the first connecting block 6 abuts against the corresponding baffle plate 5, and both the first connecting block 6 and the second connecting block 7 are provided with studs 8.

[0019] The first sleeve 601 and the second sleeve 701 are fixedly arranged on the outer circles of the first connecting block 6 and the second connecting block 7 respectively. The first sleeve 601 passes through the side of the column 2 and is fixedly connected. The outer circle of the column 2 is provided with through grooves 201 at intervals. The second sleeve 701 passes through the through grooves 201. The outer circles of the first sleeve 601 and the second sleeve 701 are both provided with threaded sleeves 9 and the interiors are both slidably connected with the corresponding studs 8. The threaded sleeves 9 are threadedly connected to the studs 8.

[0020] The outer rings of the first sleeve 601 and the second sleeve 701 are both fixed with retaining rings 10, and the inner ring of the screw sleeve 9 is provided with a groove, and the retaining ring 10 abuts against the inner wall of the groove. This structural design is used to radially limit the screw sleeve 9.

[0021] Two threaded holes are spaced apart on the side of the guardrail body 1, and the other end of the stud 8 is threadedly connected to the corresponding threaded hole. Through this structural design, the guardrail body 1 and the column 2 are connected into a whole.

[0022] The inner wall of the first connecting block 6 abuts against the top and bottom of the second connecting block 7, the screw 3 passes through the first connecting block 6 and the second connecting block 7 and is rotatably connected, the outer ring of the pressure plate 4 is symmetrically fixed with a protrusion 401, the inner wall of the column 2 is symmetrically provided with a slide groove 202, the protrusion 401 abuts against the inner wall of the slide groove 202, the screw 3 drives the baffle 5 to move radially and abut against the top of the first sleeve 601, through this structural design, the baffle 5 cooperates with the upper and lower surfaces of the first connecting block 6 to clamp and fix the second connecting block 7, the bottom of the screw 3 is rotatably connected to the bottom of the inner wall of the column 2, the top of the screw 3 passes through the top of the column 2 and a hexagonal nut 301 is fixed on the top, and a base is fixed at the bottom of the column 2.

[0023] When the device is in use, the column 2 is placed between the two guardrail bodies 1, the angle between the first sleeve 601 and the second sleeve 701 is adjusted according to the needs on site, and the screw rod 3 is rotated to drive the pressure plate 4 to move downward so that it abuts against the top of the corresponding first connecting block 6, and the baffle 5 applies pressure to clamp and fix the second connecting block 7; one end of the stud 8 is connected to the threaded hole on the guardrail body 1, and the other end is connected to the corresponding screw sleeve 9, and the screw sleeve 9 is rotated to connect and fix the stud 8 with the corresponding first connecting block 6 and the second connecting block 7, so as to form a whole to complete the connection; the guardrail body 1 and the bottom of the column 2 are fixed on the bridge deck.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A guardrail for a road or bridge, comprising a guardrail body (1) and a column (2), characterized in that: A screw rod (3) is rotatably arranged inside the column (2), two pressure plates (4) are arranged at intervals on the outer ring of the screw rod (3), two baffles (5) are fixedly arranged at intervals on the inner wall of the column (2), the top of each baffle (5) abuts against a first connecting block (6), each first connecting block (6) is hingedly connected to a second connecting block (7), the top of the first connecting block (6) abuts against the corresponding baffle (5), and both the first connecting block (6) and the second connecting block (7) are provided with studs (8).

2. A road and bridge guardrail according to claim 1, characterized in that: The first connecting block (6) and the second connecting block (7) are respectively fixedly provided with a first sleeve (601) and a second sleeve (701); the first sleeve (601) passes through the side of the column (2) and is fixedly connected; the outer ring of the column (2) is provided with through slots (201) at intervals; the second sleeve (701) passes through the through slots (201); the outer rings of the first sleeve (601) and the second sleeve (701) are both sleeved with threaded sleeves (9) and the interiors are both slidably connected with corresponding studs (8); the threaded sleeves (9) are threadedly connected to the studs (8).

3. A road and bridge guardrail according to claim 2, characterized in that: The outer rings of the first sleeve (601) and the second sleeve (701) are both fixedly provided with retaining rings (10), the inner ring of the screw sleeve (9) is provided with a groove, and the retaining ring (10) abuts against the inner wall of the groove.

4. A road and bridge guardrail according to claim 1, characterized in that: Two threaded holes are spaced apart on the side of the guardrail body (1), and the other end of the stud (8) is threadedly connected to the corresponding threaded holes.

5. The road and bridge guardrail according to claim 1, characterized in that: The inner wall of the first connecting block (6) abuts against the top and bottom of the second connecting block (7); the screw rod (3) passes through the first connecting block (6) and the second connecting block (7) and is rotatably connected; the outer ring of the pressure plate (4) is symmetrically fixed with a protrusion (401); the inner wall of the column (2) is symmetrically provided with a slide groove (202); the protrusion (401) abuts against the inner wall of the slide groove (202); the screw rod (3) drives the baffle plate (5) to move radially and abut against the top of the first sleeve (601); the bottom of the screw rod (3) is rotatably connected to the bottom of the inner wall of the column (2); the top of the screw rod (3) passes through the top of the column (2) and a hexagonal nut (301) is fixedly provided on the top.

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