Wave-shaped guardrail connecting transition structure for mountainous rural roads

Abstract

This utility model relates to the field of guardrail connection structures, and more particularly to a transitional connection structure for corrugated guardrails on rural mountain roads. It includes an adjusting block, a first guardrail, and an adjusting component. A first and second guardrail are positioned at the front end of the adjusting block. A connecting plate is slidably mounted on the outer walls of the first and second guardrails. Two reinforcing brackets are positioned at the front end of the connecting plate, and the adjusting component is positioned at the lower end of the adjusting block. This utility model works by pressing the connecting plate closer to the adjusting block, placing the two reinforcing brackets at the front end of the connecting plate, and rotating the first nut to move the fixing plate to fit against the rear end face of the adjusting block. This distributes the outward elastic force at the edge of the first guardrail. The limiting plate prevents the first nut from loosening, thus solving the problem that after the guardrail is bent, an outward force is generated at both ends of the guardrail, which continuously acts on the bolts at the connection point, causing the bolts to loosen and the guardrail to fail.

Description

Technical Field

[0001] This utility model belongs to the field of guardrail connection structure, specifically relating to a corrugated guardrail connection transition structure for rural roads in mountainous areas. Background Technology

[0002] Due to the complex terrain, mountainous rural roads have numerous curves, slopes, and bridges, posing significant challenges to road construction. To ensure traffic safety, especially at high speeds, corrugated guardrails, as a common road safety protection facility, are widely used along the edges of mountain roads to prevent out-of-control vehicles from running off the road.

[0003] In existing technology, when installing a corrugated guardrail connection structure at a curve, one end of the guardrail is fixed to a post, and then the other end of the guardrail is bent and fixed to the post with fixing bolts. This allows the guardrail to have the same curvature as the road, thus providing effective protection for vehicles.

[0004] Because of the high toughness of the guardrail, when the guardrail is bent, an outward force will be generated at both ends of the guardrail. This force will continuously act on the bolts at the connection point, which will cause the bolts at the connection point of the guardrail to loosen, causing the guardrail to detach from the post and fail. Utility Model Content

[0005] To overcome the problem that existing guardrail connection structures generate an outward force at both ends of the guardrail after it is bent, and this force continuously acts on the bolts at the connection point, causing the bolts to loosen and the guardrail to fail, a corrugated guardrail connection transition structure for rural roads in mountainous areas is proposed.

[0006] The technical solution of this utility model is as follows: a corrugated guardrail connection transition structure for rural roads in mountainous areas, including an adjusting block; it also includes a first guardrail and an adjusting component; a first guardrail and a second guardrail are provided at the front end of the adjusting block, a connecting plate is slidably provided on the outer wall of the first guardrail and the second guardrail, two reinforcing frames are provided at the front end of the connecting plate, the side of the reinforcing frame is U-shaped, a fixing plate is slidably provided on the outer wall of the reinforcing frame, a plurality of first nuts are threaded on the outer wall of the reinforcing frame, a limit piece is provided between the first nuts and the fixing plate, and an adjusting component is provided at the lower end of the adjusting block.

[0007] Preferably, the fixing plate is horizontally positioned at the rear end of the adjusting block, the side of the limiting piece is Z-shaped, the inner wall of the limiting piece is in contact with the outer wall of the fixing plate, and the outer wall of the limiting piece is in contact with the outer wall of the first nut.

[0008] Preferably, the front end of the connecting plate is threaded with two first fixing bolts, which are fixedly connected to the first guardrail and the second guardrail respectively. The left and right ends of the connecting plate are fixed with baffles, and two reinforcing frames are located inside the baffles.

[0009] Preferably, an energy-absorbing block is fixed to the front end of the adjusting block. The energy-absorbing block is hollow inside. Multiple dampers are fixed to the front end of the adjusting block. The other end of the damper is fixed to the top of the inner wall of the energy-absorbing block. A shock-absorbing spring is sleeved on the outside of the damper.

[0010] Preferably, the adjustment component includes a column, with the lower end of the adjustment block having a column fixedly connected to the ground, and the upper end of the column having a first groove, with the adjustment block slidably disposed on the inner wall of the first groove.

[0011] Preferably, the adjusting block and the left end of the column are connected by a limit hole, and multiple limit holes are equidistantly distributed on the left end of the adjusting block. Limit bolts are slidably installed on the inner wall of the column.

[0012] Preferably, a second nut is threaded onto the outer wall of the limiting bolt, the second nut is located at the left end of the column, and a washer is slidably provided on the outer wall of the limiting bolt, the washer being located between the second nut and the column.

[0013] The beneficial effects of this utility model are as follows: By squeezing the connecting plate to bring it closer to the adjusting block, and then placing the two reinforcing brackets at the front end of the connecting plate, the first nut is rotated to drive the fixed plate to move and fit against the rear end face of the adjusting block. This can share the outward elastic force at the edge of the first guardrail. Under the action of the limiting plate, the first nut can be prevented from loosening. This solves the problem that after the guardrail is bent, an outward force will be generated at both ends of the guardrail. This force will continuously act on the bolts at the connection, causing the bolts to loosen and the guardrail to fail. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a three-dimensional structural schematic of the fixing plate of this utility model;

[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the first fixing bolt of this utility model;

[0017] Figure 4 The diagram shown is a cross-sectional three-dimensional structural schematic of the energy-absorbing block of this utility model;

[0018] Figure 5 The diagram shown is a three-dimensional structural schematic of the limiting bolt of this utility model.

[0019] The markings in the attached diagram are as follows: 1. Adjusting block; 101. First guardrail; 102. Second guardrail; 103. Connecting plate; 104. Reinforcing frame; 105. Fixing plate; 106. First nut; 107. Limiting plate; 2. First fixing bolt; 201. Column; 202. First groove; 203. Limiting hole; 204. Limiting bolt; 205. Second nut; 206. Washer; 3. Baffle; 4. Energy-absorbing block; 5. Damper; 6. Shock-absorbing spring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-5 This utility model provides an embodiment: a corrugated guardrail connection transition structure for rural roads in mountainous areas, including an adjusting block 1; it also includes a first guardrail 101 and an adjusting assembly; the front end of the adjusting block 1 is provided with a first guardrail 101 and a second guardrail 102, a connecting plate 103 is slidably provided on the outer wall of the first guardrail 101 and the second guardrail 102, two reinforcing frames 104 are provided at the front end of the connecting plate 103, the side of the reinforcing frame 104 is U-shaped, a fixing plate 105 is slidably provided on the outer wall of the reinforcing frame 104, and a plurality of first nuts 106 are threadedly installed on the outer wall of the reinforcing frame 104, with a limit position provided between the first nuts 106 and the fixing plate 105. The lower end of the adjusting block 1 is provided with an adjusting component. By pressing the connecting plate 103, it is brought closer to the adjusting block 1. Then, two reinforcing brackets 104 are placed at the front end of the connecting plate 103. By rotating the first nut 106, the fixing plate 105 is moved to fit against the rear end face of the adjusting block 1. This can share the outward elastic force at the edge of the first guardrail 101. Under the action of the limiting piece 107, the first nut 106 can be prevented from loosening. This solves the problem that after the guardrail is bent, an outward force will be generated at both ends of the guardrail. This force will continuously act on the bolts at the connection, causing the bolts to loosen and the guardrail to fail.

[0022] Please see Figures 1-4In this embodiment, the fixing plate 105 is horizontally arranged at the rear end of the adjusting block 1. The side of the limiting piece 107 is Z-shaped. The inner wall surface of the limiting piece 107 is in contact with the outer wall surface of the fixing plate 105. The outer wall surface of the limiting piece 107 is in contact with the outer wall surface of the first nut 106. Two first fixing bolts 2 are threadedly installed at the front end of the connecting plate 103. The two first fixing bolts 2 are fixedly connected to the first guardrail 101 and the second guardrail 102 respectively. Baffles 3 are fixedly connected to the left and right ends of the connecting plate 103. Two reinforcing frames 104 are located inside the baffles 3. An energy-absorbing block 4 is fixedly connected to the front end of the adjusting block 1. The energy-absorbing block 4 is hollow inside. Multiple dampers 5 are fixedly connected to the front end of the adjusting block 1. The other end of the damper 5 is fixedly connected to the top of the inner wall of the energy-absorbing block 4. A shock-absorbing spring 6 is sleeved on the outside of the damper 5. By setting the damper 5 and the shock-absorbing spring 6 inside the energy-absorbing block 4, the adjusting block 1 can be effectively protected to avoid external impacts from directly acting on the surface of the adjusting block 1.

[0023] Please see Figure 5 In this embodiment, the adjustment assembly includes a column 201. The lower end of the adjustment block 1 is provided with the column 201, which is fixedly connected to the ground. The upper end of the column 201 has a first groove 202. The adjustment block 1 is slidably disposed on the inner wall of the first groove 202. The left ends of the adjustment block 1 and the column 201 are connected by a limit hole 203. Multiple limit holes 203 are equidistantly distributed on the left end of the adjustment block 1. A limit bolt 204 is slidably disposed on the inner wall of the column 201. A second nut 205 is threadedly installed on the outer wall of the limit bolt 204. The second nut 205 is located at the left end of the column 201. A washer is slidably disposed on the outer wall of the limit bolt 204. 206. The washer 206 is located between the second nut 205 and the column 201. The height is adjusted by sliding the adjusting block 1. Then, the adjusting block 1 is limited by inserting the limiting bolt 204 into the limiting hole 203. By rotating the second nut 205, the limiting bolt 204 can be fixed on the column 201, so that the height of the adjusting block 1 can be easily adjusted. This can better adapt to the needs of different terrains in mountainous roads and keep the adjusting block 1 at a suitable height, thus providing better safety protection. By setting the washer 206, the friction of the second nut 205 can be increased to prevent loosening.

[0024] In use, the height is first adjusted by sliding the adjusting block 1. Then, the adjusting block 1 is limited by inserting the limiting bolt 204 into the limiting hole 203. By rotating the second nut 205, the limiting bolt 204 can be fixed on the column 201, so that the height of the adjusting block 1 can be easily adjusted. This can better adapt to the needs of different terrains in mountainous roads and keep the adjusting block 1 at a suitable height, thus providing better safety protection.

[0025] Then, the first fixing bolt 2 is rotated to fix the connecting plate 103 to the front end of the first guardrail 101 and the second guardrail 102, so that the first guardrail 101 and the second guardrail 102 are connected together. The connecting plate 103 is squeezed to move closer to the adjusting block 1. Then, the two reinforcing brackets 104 are placed at the front end of the connecting plate 103. The first nut 106 is rotated to drive the fixing plate 105 to move and fit against the rear end face of the adjusting block 1, so as to share the outward elastic force at the edge of the first guardrail 101. Under the action of the limiting piece 107, the first nut 106 can be prevented from loosening.

[0026] Through the above steps, the connecting plate 103 is fixed to the front end of the first guardrail 101 and the second guardrail 102 by rotating the first fixing bolt 2, so that the first guardrail 101 and the second guardrail 102 are connected together. The connecting plate 103 is squeezed to move closer to the adjusting block 1. Then, the two reinforcing brackets 104 are placed at the front end of the connecting plate 103. By rotating the first nut 106, the fixing plate 105 is moved to fit against the rear end face of the adjusting block 1, thereby sharing the outward elastic force at the edge of the first guardrail 101. Under the action of the limiting piece 107, the first nut 106 can be prevented from loosening. This solves the problem that after the guardrail is bent, an outward force will be generated at both ends of the guardrail. This force will continuously act on the bolts at the connection, causing the bolts to loosen and the guardrail to fail.

Claims

1. A transition structure for corrugated guardrails on rural mountain roads, comprising an adjusting block (1); characterized in that: It also includes a first guardrail (101) and an adjustment component; the front end of the adjustment block (1) is provided with a first guardrail (101) and a second guardrail (102), the outer walls of the first guardrail (101) and the second guardrail (102) are slidably provided with a connecting plate (103), the front end of the connecting plate (103) is provided with two reinforcing frames (104), the side of the reinforcing frame (104) is U-shaped, the outer wall of the reinforcing frame (104) is slidably provided with a fixing plate (105), the outer wall of the reinforcing frame (104) is threaded with multiple first nuts (106), a limit piece (107) is provided between the first nut (106) and the fixing plate (105), and the lower end of the adjustment block (1) is provided with an adjustment component.

2. The mountainous rural highway w-beam guardrail connection transition structure according to claim 1, characterized in that: The fixing plate (105) is horizontally positioned at the rear end of the adjusting block (1). The side of the limiting piece (107) is Z-shaped. The inner wall of the limiting piece (107) is in contact with the outer wall of the fixing plate (105), and the outer wall of the limiting piece (107) is in contact with the outer wall of the first nut (106).

3. The corrugated guardrail connection transition structure for rural mountain roads according to claim 1, characterized in that: The front end of the connecting plate (103) is threaded with two first fixing bolts (2), which are fixedly connected to the first guardrail (101) and the second guardrail (102) respectively. The left and right ends of the connecting plate (103) are fixed with baffles (3), and two reinforcing frames (104) are located inside the baffles (3).

4. The mountainous rural highway w-beam guardrail connection transition structure of claim 1, wherein: An energy-absorbing block (4) is fixed to the front end of the adjusting block (1). The energy-absorbing block (4) is hollow inside. Multiple dampers (5) are fixed to the front end of the adjusting block (1). The other end of the damper (5) is fixed to the top of the inner wall of the energy-absorbing block (4). A shock-absorbing spring (6) is sleeved on the outside of the damper (5).

5. The mountainous rural highway w-beam guardrail connection transition structure of claim 1, wherein: The adjustment component includes a column (201), the lower end of the adjustment block (1) is provided with a column (201), the column (201) is fixedly connected to the ground, the upper end of the column (201) is provided with a first groove (202), and the adjustment block (1) is slidably disposed on the inner wall of the first groove (202).

6. The mountainous rural highway w-beam guardrail connection transition structure of claim 5, wherein: The left end of the adjusting block (1) and the column (201) are connected by a limit hole (203). Multiple limit holes (203) are equidistantly distributed on the left end of the adjusting block (1). Limit bolts (204) are slidably installed on the inner wall of the column (201).

7. The mountainous rural highway w-beam guardrail connection transition structure of claim 6, wherein: The outer wall of the limiting bolt (204) is threaded with a second nut (205), which is located at the left end of the column (201). A washer (206) is slidably provided on the outer wall of the limiting bolt (204), which is located between the second nut (205) and the column (201).

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