Guardrail obstruction block structure for A-level highway

Abstract

The utility model discloses an A-level highway guardrail obstruction block structure which comprises an obstruction block body, assembly holes are formed in the upper side and the lower side of the rear end face of the obstruction block body, fastening bolts A penetrate through the assembly holes, key grooves are formed in the upper side and the lower side of the front end face of the obstruction block body, and fastening bolts B penetrate through the key grooves. A fixing rod is welded to the front side wall of an inner cavity of the blocking block body, a fixing block is connected to the rear end of the fixing rod, a guide groove is formed in the rear end of the fixing block, a cushion block is slidably connected into the guide groove, a buffer spring is connected between the cushion block and the inner wall of the guide groove, and a fixing base is connected between the cushion block and the rear side wall of the inner cavity of the blocking block body. Positioning holes are formed in the upper and lower ends of the fixed seat; the anti-blocking block is reasonable in structural design and convenient and fast to install, buffering protection can be conducted when the anti-blocking block body deforms, severe deformation of the anti-blocking block body is avoided, steel consumption is reduced, steel is free of galvanization, environmental pollution is avoided, and the anti-blocking block has high market popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering equipment, in particular to a guardrail anti-blocking block structure for a Class A highway. Background Art

[0002] A-class highways are expressways with fully controlled access and designed for cars to travel at high speeds on separated lanes. They are mainly used to connect politically, economically, and culturally important cities and regions, and are the backbone of the national highway network. Highway guardrails are the main form of semi-rigid guardrails, which are a continuous structure with corrugated steel guardrail panels spliced ​​together and supported by main columns.

[0003] The anti-block block is an important component of the highway guardrail. It is a load-bearing component between the corrugated beam and the column, which can increase the overall strength of the guardrail. The anti-block block itself is also an energy-absorbing mechanism, which can cause the guardrail to gradually deform after a collision, which is conducive to energy absorption and reduces casualties of passengers.

[0004] Most existing barrier blocks are made of carbon steel, which is prone to porous rust when exposed to the outside for a long time. The adsorbed water and sediments easily penetrate into the base metal to continue the corrosion process, affecting the use effect and reducing the service life. Therefore, galvanizing is often required for rust prevention. This process seriously pollutes the environment and is not conducive to promotion and use. To this end, we proposed a barrier block structure for Class A highway guardrails. Utility Model Content

[0005] The utility model aims to provide a guardrail anti-blocking block structure for a Class A highway to overcome the technical problems existing in the prior art.

[0006] In order to achieve the above technical objectives and the above technical effects, the utility model provides the following technical solutions:

[0007] A guardrail anti-obstruction block structure for Class A highway, including an anti-obstruction block body, assembly holes are provided on the upper and lower sides of the rear end face of the anti-obstruction block body, fastening bolts A penetrate through the assembly holes, key slots are provided on the upper and lower sides of the front end face of the anti-obstruction block body, fastening bolts B penetrate through the key slots, a fixing rod is welded to the front side wall of the inner cavity of the anti-obstruction block body, a fixing block is connected to the rear end of the fixing rod, a guide groove is provided at the rear end of the fixing block, a pad is slidably connected in the guide groove, a buffer spring is connected between the pad and the inner wall of the guide groove, a fixing seat is connected between the pad and the rear side wall of the inner cavity of the anti-obstruction block body, positioning holes are provided at the upper and lower ends of the fixing seat, and the positioning hole and the assembly hole are arranged coaxially.

[0008] Preferably, in a guardrail block structure for a Class A highway, an arc groove is provided at the rear end of the block body, the rear end of the arc groove abuts against a column, and the fastening bolt A passes through the column, the assembly hole and the positioning hole in sequence.

[0009] Preferably, in a guardrail block structure for a Class A highway, the front end of the block body abuts against a corrugated beam plate, a circular through hole is provided at the trough of the corrugated beam plate, and the fastening bolt B passes through the circular through hole and the keyway.

[0010] Preferably, in a guardrail barrier block structure for a Class A highway, the base metal material of the barrier block body is Q700NH lightweight weathering steel, and the cross-section of the barrier block body is a regular hexagonal ring structure.

[0011] Preferably, in a guardrail block structure for a Class A highway, the outer side wall of the block body is connected to a dovetail bar, the lower end of the dovetail bar is connected to a support block, a buffer block is plugged into the outside of the dovetail bar, and the front end of the buffer block abuts against the inner wall of the corrugated beam plate.

[0012] Preferably, in a guardrail anti-block structure for a Class A highway, the buffer springs are provided in plurality and are evenly distributed in the guide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model has a reasonable structural design and is easy to install. It can provide buffering protection when the main body of the barrier block is deformed, thereby preventing the main body of the barrier block from undergoing drastic deformation. It utilizes the characteristics of weathering steel's strong atmospheric corrosion resistance and high yield strength and tensile strength of high-strength steel to replace traditional Q235 carbon steel, thereby reducing steel usage and exempting steel from galvanizing, thus avoiding environmental pollution and having high market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the working state of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 for Figure 2 Cross-sectional structural diagram in the AA direction;

[0019] Figure 4 It is a structural schematic diagram of the main body of the anti-blocking block in the utility model.

[0020] In the figure: 1. Anti-block block body; 2. Assembly hole; 3. Fastening bolt A; 4. Keyway; 5. Fastening bolt B; 6. Fixing rod; 7. Fixing block; 8. Guide groove; 9. Spacer; 10. Buffer spring; 11. Fixing seat; 12. Positioning hole; 13. Arc groove; 14. Column; 15. Corrugated beam plate; 101. Dovetail strip; 102. Support block; 103. Buffer block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, this embodiment is a guardrail anti-obstruction block structure for Class A highway, including an anti-obstruction block main body 1, assembly holes 2 are opened on the upper and lower sides of the rear end surface of the anti-obstruction block main body 1, and fastening bolts A3 are penetrated in the assembly hole 2, key grooves 4 are opened on the upper and lower sides of the front end surface of the anti-obstruction block main body 1, and fastening bolts B5 are penetrated in the key groove 4, a fixing rod 6 is welded to the front side wall of the inner cavity of the anti-obstruction block main body 1, a fixing block 7 is connected to the rear end of the fixing rod 6, a guide groove 8 is opened at the rear end of the fixing block 7, a cushion block 9 is slidably connected in the guide groove 8, a buffer spring 10 is connected between the cushion block 9 and the inner wall of the guide groove 8, a fixing seat 11 is connected between the cushion block 9 and the rear side wall of the inner cavity of the anti-obstruction block main body 1, positioning holes 12 are opened at the upper and lower ends of the fixing seat 11, and the positioning hole 12 is arranged coaxially with the assembly hole 2.

[0023] An arc groove 13 is provided at the rear end of the anti-obstruction block body 1, and the rear end of the arc groove 13 abuts against a column 14. The fastening bolt A3 passes through the column 14, the assembly hole 2 and the positioning hole 12 in sequence. The front end of the anti-obstruction block body 1 abuts against a corrugated beam plate 15, and a round through hole is provided at the trough of the corrugated beam plate 15. The fastening bolt B5 passes through the round through hole and the key slot 4, which is easy to assemble.

[0024] The base metal material of the main body 1 of the barrier block is Q700NH lightweight weather-resistant steel. The cross-section of the main body 1 of the barrier block is a regular hexagonal ring structure, which has high-strength steel yield strength and high tensile strength.

[0025] The outer wall of the barrier block body 1 is connected with a dovetail bar 101, the lower end of the dovetail bar 101 is connected with a support block 102, the outside of the dovetail bar 101 is plugged with a buffer block 103, and the front end of the buffer block 103 abuts against the inner wall of the corrugated beam plate 15 to provide auxiliary buffering.

[0026] A plurality of buffer springs 10 are provided and evenly distributed in the guide groove 8 so as to be evenly stressed.

[0027] The specific implementation of this embodiment is as follows:

[0028] The utility model has reasonable structural design and convenient installation. The corrugated beam plate 15 and the column 14 are respectively installed on the front and rear sides of the main body 1 of the barrier block, and are fastened by the fastening bolts B5 and the fastening bolts A3 respectively. After the corrugated beam plate 15 is hit, the main body 1 of the barrier block is used to absorb energy, so that the corrugated beam plate 15 is gradually deformed after the collision. By arranging a buffer spring 10 between the electric block 9 and the inner wall of the guide groove 8, buffer protection can be provided when the main body 1 of the barrier block is deformed, so as to avoid drastic deformation of the main body 1 of the barrier block. A dovetail strip 101 is arranged on the wall to facilitate the installation of a buffer block 103. The buffer block 103 can fit the inner wall of the corrugated beam plate 15, thereby expanding the supporting area and absorbing the energy more completely during collision, thereby further improving the buffering effect. The base metal material of the barrier block body 1 is Q700NH lightweight weather-resistant steel. By utilizing the characteristics of strong atmospheric corrosion resistance of weather-resistant steel and high yield strength and tensile strength of high-strength steel, it can replace traditional Q235 carbon steel, thereby reducing steel consumption and exempting steel from galvanizing, thus avoiding environmental pollution and having high market promotion value.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A guardrail anti-block structure for a Class A highway, comprising an anti-block block body (1), characterized in that: The upper and lower sides of the rear end surface of the main body (1) of the anti-obstruction block are provided with assembly holes (2), and a fastening bolt A (3) passes through the assembly hole (2). The upper and lower sides of the front end surface of the main body (1) of the anti-obstruction block are provided with key grooves (4), and a fastening bolt B (5) passes through the key grooves (4). A fixing rod (6) is welded to the front side wall of the inner cavity of the main body (1) of the anti-obstruction block, and the rear end of the fixing rod (6) is connected to a fixing block (7). The rear end of the fixing block (7) is provided with a guide groove (8), and a cushion block (9) is slidably connected in the guide groove (8). A buffer spring (10) is connected between the cushion block (9) and the inner wall of the guide groove (8). A fixing seat (11) is connected between the cushion block (9) and the rear side wall of the inner cavity of the main body (1) of the anti-obstruction block, and positioning holes (12) are provided at the upper and lower ends of the fixing seat (11), and the positioning hole (12) and the assembly hole (2) are arranged coaxially.

2. The A-class highway guardrail anti-blocking block structure according to claim 1 is characterized in that: The rear end of the anti-block block body (1) is provided with an arc groove (13), the rear end of the arc groove (13) is in contact with a column (14), and the fastening bolt A (3) passes through the column (14), the assembly hole (2) and the positioning hole (12) in sequence.

3. The A-class highway guardrail anti-blocking block structure according to claim 1 is characterized in that: The front end of the barrier block body (1) is in contact with a corrugated beam plate (15), a round through hole is provided at the wave trough of the corrugated beam plate (15), and the fastening bolt B (5) passes through the round through hole and the keyway (4).

4. The A-class highway guardrail anti-block structure according to claim 1 is characterized in that: The base metal material of the main body (1) of the anti-blocking block is Q700NH lightweight weathering steel, and the cross-section of the main body (1) of the anti-blocking block is a regular hexagonal ring structure.

5. The A-class highway guardrail anti-block structure according to claim 3 is characterized in that: The outer side wall of the main body (1) of the anti-blocking block is connected to a dovetail bar (101), the lower end of the dovetail bar (101) is connected to a support block (102), the outside of the dovetail bar (101) is plugged with a buffer block (103), and the front end of the buffer block (103) abuts against the inner wall of the corrugated beam plate (15).

6. The A-class highway guardrail anti-block structure according to claim 1 is characterized by: The buffer springs (10) are provided in plurality and are evenly distributed in the guide groove (8).

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