Concrete anti-collision guardrail

Abstract

The utility model relates to a concrete anti-collision guardrail which comprises a structure main body and an elastic cushion, the structure main body comprises a main beam cantilever and a guardrail body, the guardrail body is arranged on the main beam cantilever, and the guardrail body is provided with a collision face; and the elastic cushion is arranged on the head-on collision surface. The elastic cushion can buffer vehicle impact force under small impact energy, damage to the guardrail body can be reduced, and damage to a vehicle can also be reduced. In addition, after the elastic cushion is damaged, the elastic cushion is easy to repair or replace.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a concrete anti-collision guardrail. Background Art

[0002] Bridge crash guardrails can be divided into rigid crash guardrails, semi-rigid crash guardrails and flexible crash guardrails according to their stiffness; and can be divided into concrete crash guardrails, steel crash guardrails and combined crash guardrails according to the materials used.

[0003] At present, although concrete crash barriers are the cheapest and most widely used, the impact surface of concrete crash barriers is rigid. When a vehicle hits a concrete crash barrier, it causes great damage to both the vehicle and the concrete crash barrier itself. Utility Model Content

[0004] Based on the above description, the utility model provides a concrete anti-collision guardrail, which aims to solve the problem that when the rigid collision surface of the existing concrete anti-collision guardrail is hit by a vehicle, both the vehicle and the concrete anti-collision guardrail itself are severely damaged.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A concrete anti-collision guardrail, comprising:

[0007] The structural body comprises a main beam cantilever and a guardrail body, wherein the guardrail body is arranged on the main beam cantilever and has a collision surface;

[0008] The elastic pad is arranged on the collision surface.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, a shear-resistant groove is provided on one side of the main beam cantilever close to the guardrail body, and a shear-resistant protrusion is provided on the guardrail body corresponding to the shear-resistant groove. When the guardrail body and the main beam cantilever are assembled, the shear-resistant protrusion is embedded in the shear-resistant groove.

[0011] Furthermore, it includes a connecting piece, which connects the guardrail body with the main beam cantilever.

[0012] Furthermore, the connecting part includes an embedded screw, an embedded nut and a bottom nut, one end of the embedded screw is embedded in the guardrail body, the other end of the embedded screw passes through the main beam cantilever and extends to the bottom of the main beam cantilever, the embedded nut is arranged at one end of the embedded screw close to the guardrail body, the bottom nut is arranged at one end of the embedded screw close to the main beam cantilever, and the embedded nut and the bottom nut are both matched with the embedded screw thread.

[0013] Furthermore, the connecting member includes a pre-embedded spiral steel bar, which is sleeved on the pre-embedded screw rod, and one end of the pre-embedded spiral steel bar away from the main beam cantilever is in contact with the pre-embedded nut.

[0014] Furthermore, the connecting member includes a bottom sleeve and an elastic part, the bottom sleeve is arranged between the bottom nut and the main beam cantilever, the elastic part is arranged in the bottom sleeve, one end of the elastic part close to the main beam cantilever abuts against the main beam cantilever, and one end of the elastic part away from the main beam cantilever abuts against the bottom nut.

[0015] Furthermore, the connecting member includes a pad, and the pad is provided between the embedded nut and the embedded spiral steel bar, and between the bottom sleeve and the elastic part and the main beam cantilever.

[0016] Furthermore, the elastic part is a spring.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] (1) The elastic pad of the present application can buffer the impact force of a vehicle under a small impact energy, which can reduce the damage to the guardrail body and the damage to the vehicle. In addition, when the elastic pad is damaged, the elastic pad is easy to repair or replace.

[0019] (2) The bottom steel sleeve of the present application will yield and deform under large impact energy, and the coil spring will compress and deform after the bottom sleeve yields to buffer the impact force and reduce vehicle damage.

[0020] (3) In this application, the elastic pad and the bottom sleeve are damaged under high impact energy, but these two parts are easy to repair, with low cost and fast repair speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic structural diagram of a concrete anti-collision guardrail provided in an embodiment of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 10. Main structure; 11. Main beam cantilever; 111. Shear groove; 12. Guardrail body; 121. Shear protrusion; 20. Elastic pad; 30. Connector; 31. Embedded screw; 32. Embedded nut; 33. Bottom nut; 34. Embedded spiral steel bar; 35. Bottom sleeve; 36. Elastic part; 37. Pad. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0027] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0028] See attached Figure 1 As shown, the utility model provides a technical solution: a concrete anti-collision guardrail, including a structural body 10 and an elastic pad 20, the structural body 10 includes a main beam cantilever 11 and a guardrail body 12, the guardrail body 12 is arranged on the main beam cantilever 11, and the guardrail body 12 has a collision surface; the elastic pad 20 is arranged on the collision surface.

[0029] For example, the elastic pad 20 and the guardrail body 12 may be bonded together. The elastic pad 20 may be made of rubber or flexible plastic material.

[0030] According to this embodiment, when a vehicle collides with the guardrail body 12, the elastic pad 20 can buffer the impact force of the vehicle under small impact energy, which can reduce damage to the guardrail body 12 and the vehicle. In addition, when the elastic pad 20 is damaged, the elastic pad 20 is easy to repair or replace.

[0031] See attached Figure 1 As shown, in some embodiments, a shear groove 111 is provided on one side of the main beam cantilever 11 close to the guardrail body 12, and a shear protrusion 121 is provided on the guardrail body 12 corresponding to the shear groove 111. When the guardrail body 12 and the main beam cantilever 11 are assembled, the shear protrusion 121 is embedded in the shear groove 111.

[0032] According to this embodiment, when a vehicle hits the guardrail body 12 , the anti-shear groove 111 can play a role in resisting the horizontal shear force, thereby preventing the guardrail body 12 from being damaged.

[0033] See attached Figure 1 As shown, in some embodiments, a connector 30 is included, and the connector 30 connects the guardrail body 12 to the main beam cantilever 11. In this embodiment, the connector 30 includes an embedded screw 31, an embedded nut 32 and a bottom nut 33, one end of the embedded screw 31 is embedded in the guardrail body 12, the other end of the embedded screw 31 passes through the main beam cantilever 11 and extends to the bottom of the main beam cantilever 11, the embedded nut 32 is arranged at one end of the embedded screw 31 close to the guardrail body 12, and the bottom nut 33 is arranged at one end of the embedded screw 31 close to the main beam cantilever 11, and both the embedded nut 32 and the bottom nut 33 are threadedly matched with the embedded screw 31.

[0034] According to this embodiment, through the cooperation between the bottom nut 33 and the embedded screw rod 31,

[0035] See attached Figure 1 As shown, in some embodiments, the connecting member 30 includes a pre-embedded spiral steel bar 34 , which is sleeved on the pre-embedded screw rod 31 , and one end of the pre-embedded spiral steel bar 34 away from the main beam cantilever 11 abuts against the pre-embedded nut 32 .

[0036] According to this embodiment, when a vehicle hits the guardrail body 12 , the embedded spiral reinforcement 34 can offset some of the downward force, thereby protecting the guardrail body 12 .

[0037] See attached Figure 1 As shown, in some embodiments, the connecting member 30 includes a bottom sleeve 35 and an elastic portion 36. The bottom sleeve 35 is disposed between the bottom nut 33 and the main beam cantilever 11. The elastic portion 36 is disposed in the bottom sleeve 35. One end of the elastic portion 36 close to the main beam cantilever 11 abuts against the main beam cantilever 11, and the end of the elastic portion 36 away from the main beam cantilever 11 abuts against the bottom nut 33.

[0038] Exemplarily, the elastic part 36 is a spring, etc. The bottom sleeve 35 may be made of a thin steel plate.

[0039] According to this embodiment, under small impact energy, the bottom sleeve 35 will not yield and deform. Under large impact energy, the bottom sleeve 35 will yield and deform, and the coil spring compresses and deforms after the bottom steel sleeve yields to buffer the impact force, so as to reduce vehicle damage.

[0040] See attached Figure 1 As shown, in some embodiments, the connecting member 30 includes a pad 37 , and pads 37 are provided between the embedded nut 32 and the embedded spiral reinforcement 34 , and between the bottom sleeve 35 and the elastic portion 36 and the main beam cantilever 11 .

[0041] According to this embodiment, the pad 37 can increase the contact area with the elastic part 36, thereby ensuring that force is applied to the elastic part 36, so that the embedded spiral steel bar 34 and the elastic part 36 play corresponding roles.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete anti-collision guardrail, It is characterized in that include: The structural body (10) comprises a main beam cantilever (11) and a guardrail body (12), wherein the guardrail body (12) is arranged on the main beam cantilever (11), and the guardrail body (12) has a collision surface; An elastic pad (20) is arranged on the collision surface.

2. A concrete anti-collision guardrail according to claim 1, It is characterized in that A shear-resistant groove (111) is provided on one side of the main beam cantilever (11) close to the guardrail body (12); a shear-resistant protrusion (121) is provided on the guardrail body (12) corresponding to the shear-resistant groove (111); when the guardrail body (12) and the main beam cantilever (11) are assembled, the shear-resistant protrusion (121) is embedded in the shear-resistant groove (111).

3. A concrete anti-collision guardrail according to claim 1, It is characterized in that It comprises a connecting piece (30), wherein the connecting piece (30) connects the guardrail body (12) and the main beam cantilever (11).

4. A concrete anti-collision guardrail according to claim 3, It is characterized in that The connecting member (30) comprises an embedded screw rod (31), an embedded nut (32) and a bottom nut (33); one end of the embedded screw rod (31) is embedded in the guardrail body (12); the other end of the embedded screw rod (31) passes through the main beam cantilever (11) and extends to the bottom of the main beam cantilever (11); the embedded nut (32) is arranged at one end of the embedded screw rod (31) close to the guardrail body (12); the bottom nut (33) is arranged at one end of the embedded screw rod (31) close to the main beam cantilever (11); the embedded nut (32) and the bottom nut (33) are both threadedly matched with the embedded screw rod (31).

5. A concrete anti-collision guardrail according to claim 4, It is characterized in that The connecting member (30) comprises a pre-embedded spiral steel bar (34), the pre-embedded spiral steel bar (34) is sleeved on the pre-embedded screw rod (31), and one end of the pre-embedded spiral steel bar (34) away from the main beam cantilever (11) abuts against the pre-embedded nut (32).

6. A concrete anti-collision guardrail according to claim 5, It is characterized in that The connecting member (30) comprises a bottom sleeve (35) and an elastic portion (36); the bottom sleeve (35) is arranged between the bottom nut (33) and the main beam cantilever (11); the elastic portion (36) is arranged in the bottom sleeve (35); an end of the elastic portion (36) close to the main beam cantilever (11) abuts against the main beam cantilever (11); and an end of the elastic portion (36) away from the main beam cantilever (11) abuts against the bottom nut (33).

7. A concrete anti-collision guardrail according to claim 6, It is characterized in that The connecting member (30) comprises a pad (37), and the pad (37) is provided between the embedded nut (32) and the embedded spiral steel bar (34), and between the bottom sleeve (35) and the elastic part (36) and the main beam cantilever (11).

8. A concrete anti-collision guardrail according to claim 7, It is characterized in that The elastic part (36) is a spring.

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