Road protective fence

Abstract

The invention discloses a road protective fence. The technical problem that supporting piles are troublesome to replace is solved. The road protective fence comprises a protective plate, two protective fence ends and a plurality of supporting piles, each supporting pile comprises a supporting column, a bearing seat and a supporting seat, the supporting seats are buried in the stratum and fixed to the stratum through concrete pouring, the upper surfaces of the supporting seats are flush with the road surface, and the supporting columns are arranged on the bearing seats. The bearing seat is detachably connected to the supporting seat through a plurality of fastening screws, and the supporting column is vertically arranged on the bearing seat and used for being connected with the protection plate. The supporting pile is more convenient to replace, the burden of workers can be reduced, and the working efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of guardrails, and in particular relates to a road guardrail. Background Art

[0002] Road guardrails refer to fences installed outside the roadbed to prevent livestock, pedestrians, non-motorized vehicles, etc. from entering the highway. They are widely used.

[0003] The road guardrail in the related technology usually includes a guardrail plate, two guardrail ends and multiple supporting piles. The multiple supporting piles are respectively fixed to the ground. The guardrail plate and the multiple supporting piles are respectively connected by fastening bolts, and the two guardrail ends are respectively fixed to the corresponding ends of the guardrail plate.

[0004] When the road guardrail is hit by a vehicle and the supporting pile is deformed, the supporting pile and the guard plate need to be replaced. However, the bottom of the supporting pile of the road guardrail in the related art is buried in the stratum. When replacing the supporting pile, the road surface needs to be dug up and the supporting pile needs to be pulled out, which makes the replacement of the supporting pile more troublesome, not only increasing the burden on the staff, but also affecting the timeliness of the operation, which needs to be improved. Summary of the invention

[0005] In order to solve all or part of the above problems, the purpose of the present invention is to provide a road guardrail that can facilitate the workers to replace the support piles, which can not only reduce the burden on the workers but also improve the work efficiency.

[0006] The present invention provides a road guardrail, comprising a guardrail plate, two guardrail end heads and a plurality of support piles, wherein the support piles comprise support columns, receiving seats and support seats, wherein the support seats are buried in the stratum and fixed to the stratum by pouring concrete, and the upper surface of the support seats is flush with the road surface, the receiving seats are detachably connected to the support seats by a plurality of fastening screws, and the support columns are vertically arranged on the receiving seats and are used to be connected to the guardrail plate.

[0007] Optionally, a support shaft is coaxially fixedly connected to the bottom of the support column, the outer diameter of the support shaft is smaller than the outer diameter of the support column, and a guide ball is integrally connected to the bottom of the support shaft, a guide groove is provided on the receiving seat, and the guide ball is universally rotatably matched with the guide groove; The receiving seat is threadedly connected with a plurality of shear pins, the axial direction of the shear pins is perpendicular to the axial direction of the support shaft, and the plurality of shear pins are arranged at equal intervals along the circumference of the receiving seat, and the guide ball is provided with a plurality of shear grooves, and the plurality of shear pins are respectively and tightly inserted into the corresponding shear grooves to achieve the limiting of the guide ball; A limiting ring is threadedly connected to the receiving seat, the inner diameter of the limiting ring is larger than the outer diameter of the guide ball, the support shaft passes through the limiting ring, and there is a limiting gap between the outer wall of the support shaft and the inner wall of the limiting ring to limit the swing amplitude of the support column.

[0008] Optionally, a guide arc surface is provided at the lower end of the limiting ring, and the guide arc surface is tightly fitted with the upper spherical surface of the guide ball.

[0009] Optionally, an elastic shock-absorbing ring is fixedly connected to the inner side wall of the limiting ring along its circumference, and the shock-absorbing ring is located in the limiting gap and tightly abuts against the outer side wall of the support shaft.

[0010] Optionally, an elastic buffer ring is fixedly connected to the bottom of the support column along its circumference, and the buffer ring is in tight contact with the limiting ring.

[0011] Optionally, a receiving groove is provided at the bottom of the guide groove, the lower end of the guide ball is vertically fixedly connected with a receiving column, and the receiving column is coaxially arranged in the receiving groove, and a plurality of buffer springs are provided in the receiving groove, and the plurality of buffer springs are arranged at equal intervals along the circumference of the receiving column, and one end of the plurality of buffer springs is respectively fixedly connected to the inner side wall of the receiving groove, and the other end is respectively fixedly connected to the receiving column.

[0012] Optionally, the buffer spring is conical, and an outer diameter of a side of the buffer spring close to the receiving column is smaller than an outer diameter of the other side.

[0013] Optionally, the cross-section of the protective plate is arranged in a corrugated shape.

[0014] Optionally, an outer side wall of the support column is provided with an annular mounting surface, and the mounting surface matches the surface of the protective plate.

[0015] Optionally, a weight-reducing cavity is provided inside the support column.

[0016] It can be seen from the above technical solution that the road guardrail provided by the present invention has the following advantages: The supporting piles of the road guardrail adopt a split structure. The supporting seat is buried in the stratum and fixed to the stratum by pouring concrete to ensure the structural strength of the connection between the supporting seat and the stratum, and the receiving seat is detachably connected to the supporting seat. When the guardrail is hit by a vehicle, the supporting column is usually deformed, while the risk of deformation of the receiving seat and the supporting seat is extremely small. When the staff replaces the supporting piles, they only need to replace the receiving seat and the supporting column, which reduces the workload and can reduce the burden on the staff and improve the time efficiency of the operation. At the same time, when the guardrail is hit, the supporting column can rotate and swing relative to the receiving seat, so that the guard plate can be deformed smoothly, and the elastic force of the shock-absorbing ring, the buffer ring and the buffer spring can be used to achieve buffering and shock absorption to achieve the effect of energy absorption, reduce the risk of excessive rigid collision between the support column and the guard plate and the vehicle, and play a role in protecting the safety of the driver.

[0017] Other features and advantages of the present invention will be set forth in the description which follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the support pile in the embodiment of the present invention; Figure 3 is a cross-sectional view of a support pile in an embodiment of the present invention; Figure 4 It is a cross-sectional view of the receiving seat in the embodiment of the present invention.

[0020] Description of reference numerals: 1. Protective plate; 2. Guardrail end; 3. Support pile; 31. Support column; 32. Socket; 33. Support seat; 34. Fastening screw; 4. Support shaft; 5. Guide ball; 6. Guide groove; 7. Shear pin; 8. Shear groove; 9. Limit ring; 10. Limit gap; 11. Guide arc surface; 12. Shock-absorbing ring; 13. Buffer ring; 14. Socket groove; 15. Socket column; 16. Buffer spring; 17. Mounting surface; 18. Weight reduction cavity. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other arbitrarily without conflict.

[0022] like Figure 1, Figure 2 , Figure 3 , Figure 4 An embodiment of the present invention is shown, in which a road guardrail is disclosed, including a guardrail plate 1, two guardrail end heads 2 and a plurality of support piles 3. The two guardrail end heads 2 are respectively integrally formed or riveted to the corresponding ends of the guardrail plate 1, and the guardrail plate 1 is respectively connected to the plurality of support piles 3 by fastening bolts, and the support piles 3 are fixedly connected to the road surface.

[0023] In one embodiment, Figure 2 , Figure 3 As shown, the support pile 3 includes a support column 31, a receiving seat 32 and a support seat 33. The support seat 33 is buried in the stratum and fixed to the stratum by pouring concrete to ensure the connection stability between the support seat 33 and the road surface. At the same time, the upper surface of the support seat 33 is flush with the road surface. The receiving seat 32 is detachably connected to the support seat 33 by a plurality of fastening screws 34. The support column 31 is vertically arranged on the receiving seat 32 and is used to connect with the protective plate 1.

[0024] In the road guardrail of this embodiment, since the support pile 3 adopts a split structure, the support seat 33 is buried in the stratum and fixed to the stratum by pouring concrete to ensure the structural strength of the connection between the support seat 33 and the stratum, when the guardrail is hit by a vehicle, it is usually the support column 31 that is deformed, while the risk of deformation of the receiving seat 32 and the support seat 33 is extremely small. At the same time, the receiving seat 32 and the support seat 33 are detachably connected, and when the staff replaces the support pile 3, they only need to replace the receiving seat 32 and the support column 31, which reduces the workload, can reduce the burden on the staff, and can also improve the timeliness of the work.

[0025] In one embodiment, Figure 3 , Figure 4 As shown, the bottom of the support column 31 is coaxially fixedly connected with the support shaft 4, the outer diameter of the support shaft 4 is smaller than the outer diameter of the support column 31, and the bottom of the support shaft 4 is integrally connected with a guide ball 5. At the same time, a guide groove 6 is provided on the receiving seat 32, the inner side wall of the guide groove 6 is matched with the lower spherical surface of the guide ball 5, and the guide ball 5 and the guide groove 6 are universally matched, that is, the support column 31 can rotate and swing.

[0026] In one embodiment, Figure 3 , Figure 4As shown, a plurality of shear pins 7 are threadedly connected to the receiving seat 32, the axial direction of the shear pins 7 is perpendicular to the axial direction of the support shaft 4, and the plurality of shear pins 7 are arranged at equal intervals along the circumference of the receiving seat 32. At the same time, a plurality of shear grooves 8 are provided on the guide ball 5, and the plurality of shear pins 7 are respectively tightly inserted into the corresponding shear grooves 8 to achieve the limiting of the guide ball 5. In this embodiment, three shear pins 7 and three shear grooves 8 are provided, and the three shear pins 7 and three shear grooves 8 are distributed at intervals of 120°.

[0027] In one embodiment, Figure 3 , Figure 4 As shown, the receiving seat 32 is threadedly connected with a limit ring 9, and the inner diameter of the limit ring 9 is larger than the outer diameter of the guide ball 5 to achieve the limit of the guide ball 5 in the vertical direction. At the same time, the support shaft 4 passes through the limit ring 9, and there is a limit gap 10 between the outer wall of the support shaft 4 and the inner wall of the limit ring 9 to limit the swing amplitude of the support column 31.

[0028] When the vehicle hits the guardrail, the shear pin 7 is cut off. At this time, the support column 31 can rotate and swing relative to the receiving seat 32, and the guard plate 1 can deform smoothly, thereby achieving a buffering effect, reducing the risk of excessive rigid collision between the support column 31 and the guard plate 1 and the vehicle, and protecting the vehicle and the driver to a certain extent.

[0029] In one embodiment, Figure 3 , Figure 4 As shown, the lower end of the limiting ring 9 is integrally formed with a guide arc surface 11, and the guide arc surface 11 is tightly fitted with the upper spherical surface of the guide ball 5 to improve the guiding effect, so that the guide ball 5 can rotate and swing smoothly.

[0030] In one embodiment, Figure 3 , Figure 4 As shown, the inner side wall of the limiting ring 9 is fixedly connected with an elastic shock-absorbing ring 12 along its circumference, and the shock-absorbing ring 12 is located in the limiting gap 10 and is in close contact with the outer side wall of the support shaft 4. At the same time, the bottom of the support column 31 is fixedly connected with an elastic buffer ring 13 along its circumference, and the buffer ring 13 is in close contact with the limiting ring 9. In this embodiment, the shock-absorbing ring 12 and the buffer ring 13 are respectively made of high-elastic rubber, and of course, high-elastic latex or high-elastic silicone materials can also be used.

[0031] When the support column 31 swings relative to the receiving seat 32, the corresponding positions of the buffer ring 13 and the shock absorbing ring 12 are squeezed and elastically deformed, thereby alleviating the impact and achieving a good energy absorption effect, thereby protecting the vehicle and the driver. At the same time, the shock absorbing ring 12 is tightly arranged in the limiting gap 10, which can also improve the good sealing effect, reduce dust or water stains from entering the receiving seat 32, thereby reducing the risk of rusting of components such as the guide ball 5, so as to ensure the stability of the guardrail.

[0032] In one embodiment, Figure 3 , Figure 4 As shown, a receiving groove 14 is provided at the bottom of the guide groove 6, and a receiving column 15 is vertically fixedly connected to the lower end of the guide ball 5, and the receiving column 15 is coaxially arranged in the receiving groove 14. A plurality of buffer springs 16 are provided in the receiving groove 14, and the plurality of buffer springs 16 are arranged at equal intervals along the circumference of the receiving column 15, and one end of the plurality of buffer springs 16 is respectively fixedly connected to the inner side wall of the receiving groove 14, and the other end is respectively fixedly connected to the receiving column 15.

[0033] When the support column 31 rotates or swings relative to the receiving seat 32, the buffer spring 16 at the corresponding position undergoes elastic deformation to absorb the impact force, so that the protective plate 1 can deform smoothly, weakening the impact effect between the protective plate 1 and the vehicle, thereby protecting the vehicle and the driver.

[0034] In one embodiment, Figure 3 , Figure 4 As shown, the buffer spring 16 is conical, and the outer diameter of the buffer spring 16 on one side close to the receiving column 15 is smaller than the outer diameter of the other side, so as to improve the guiding effect, so that the buffer spring 16 can be elastically deformed smoothly, so as to improve the buffering and shock absorbing effect.

[0035] In one embodiment, Figure 1 , Figure 2 As shown, the cross section of the protective plate 1 is arranged in a corrugated shape, that is, the surface of the protective plate 1 is formed by connecting multiple curved surfaces, thereby improving the structural strength of the protective plate 1. At the same time, the outer wall of the support column 31 is integrally formed with an annular mounting surface 17, and the mounting surface 17 fits with the surface of the protective plate 1 to increase the contact area between the protective plate 1 and the support column 31, thereby improving the connection stability between the two. At the same time, the mounting surface 17 is annular, and when the protective plate 1 is bent on a curved section of the road, the support column 31 can also fit with the protective plate 1, thereby improving the adaptability of use.

[0036] In one embodiment, Figure 1 , Figure 2 As shown, a weight reduction cavity 18 is provided inside the support column 31 to reduce the weight of the support column 31 . At the same time, it is also beneficial to the deformation of the support column 31 to achieve the energy absorption effect.

[0037] From the above, it can be seen that when the road guardrail is used, when the guardrail is hit, the support column 31 can rotate and swing relative to the receiving seat 32, so that the protective plate 1 can be deformed smoothly, and cooperate with the elastic force of the shock-absorbing ring 12, the buffer ring 13 and the buffer spring 16 to achieve buffering and shock absorption, so as to achieve the effect of energy absorption, reduce the risk of excessive rigid collision between the support column 31 and the protective plate 1 and the vehicle, so as to protect the safety of the driver.

[0038] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0039] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0040] 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 them; 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A road guardrail, comprising a guard plate (1), two guardrail ends (2) and a plurality of support piles (3), characterized in that: The support pile (3) comprises a support column (31), a receiving seat (32) and a support seat (33); the support seat (33) is buried in the stratum and fixed to the stratum by pouring concrete, and the upper surface of the support seat (33) is flush with the road surface; the receiving seat (32) is detachably connected to the support seat (33) by a plurality of fastening screws (34); the support column (31) is vertically arranged on the receiving seat (32) and is used to be connected to the protective plate (1).

2. The road guardrail according to claim 1, characterized in that: The bottom of the support column (31) is coaxially fixedly connected with a support shaft (4), the outer diameter of the support shaft (4) is smaller than the outer diameter of the support column (31), and the bottom of the support shaft (4) is integrally connected with a guide ball (5), the receiving seat (32) is provided with a guide groove (6), and the guide ball (5) and the guide groove (6) are universally rotatably matched; The receiving seat (32) is threadedly connected with a plurality of shear pins (7), the axial direction of the shear pins (7) is perpendicular to the axial direction of the support shaft (4), and the plurality of shear pins (7) are arranged at equal intervals along the circumference of the receiving seat (32), and the guide ball (5) is provided with a plurality of shear grooves (8), and the plurality of shear pins (7) are respectively and tightly inserted into the corresponding shear grooves (8) to achieve the limiting of the guide ball (5); A limit ring (9) is threadedly connected to the receiving seat (32), the inner diameter of the limit ring (9) is larger than the outer diameter of the guide ball (5), the support shaft (4) passes through the limit ring (9), and a limit gap (10) exists between the outer wall of the support shaft (4) and the inner wall of the limit ring (9) to limit the swing amplitude of the support column (31).

3. The road guardrail according to claim 2, characterized in that: The lower end of the limiting ring (9) is provided with a guide arc surface (11), and the guide arc surface (11) is tightly fitted with the upper spherical surface of the guide ball (5).

4. The road guardrail according to claim 2, characterized in that: An elastic shock-absorbing ring (12) is fixedly connected to the inner side wall of the limiting ring (9) along its circumference; the shock-absorbing ring (12) is located in the limiting gap (10) and is in close contact with the outer side wall of the support shaft (4).

5. The road guardrail according to claim 2, characterized in that: An elastic buffer ring (13) is fixedly connected to the bottom of the support column (31) along its circumference, and the buffer ring (13) is in tight contact with the limiting ring (9).

6. The road guardrail according to claim 2, characterized in that: A receiving groove (14) is provided at the bottom of the guide groove (6), a receiving column (15) is vertically fixedly connected to the lower end of the guide ball (5), and the receiving column (15) is coaxially arranged in the receiving groove (14), and a plurality of buffer springs (16) are arranged in the receiving groove (14), and the plurality of buffer springs (16) are arranged at equal intervals along the circumference of the receiving column (15), and one end of the plurality of buffer springs (16) is respectively fixedly connected to the inner side wall of the receiving groove (14), and the other end is respectively fixedly connected to the receiving column (15).

7. The road guardrail according to claim 6, characterized in that: The buffer spring (16) is conical, and the outer diameter of the buffer spring (16) on one side close to the receiving column (15) is smaller than the outer diameter of the other side.

8. The road guardrail according to claim 1, characterized in that: The cross section of the protective plate (1) is arranged in a corrugated shape.

9. The road guardrail according to claim 8, characterized in that: The outer side wall of the support column (31) is provided with an annular mounting surface (17), and the mounting surface (17) is matched with the surface of the protective plate (1).

10. The road guardrail according to claim 1, characterized in that: A weight-reducing cavity (18) is provided inside the support column (31).

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