Highway guardrail stand column

Abstract

The utility model discloses a road guardrail stand column which comprises a positioning column, a conical head is arranged at the lower end of the positioning column, a base is connected to the outer wall of the positioning column, foundation bolts are installed at the four corners of the base, a lower stand column abuts against the center of the top of the base, and an upper stand column is installed at the upper end of the lower stand column. Round through grooves are formed in the axes of the lower stand column and the upper stand column, the lower stand column is arranged outside the positioning column in a sleeving mode, three T-shaped grooves are formed in the lower portion of the outer wall of the lower stand column in the circumferential direction, an inner cylinder is arranged on the lower portion of an inner cavity of the upper stand column, and a conical ring is connected to the bottom of the inner wall of the inner cylinder; a stabilizing rod is connected between the top of the outer wall of the inner cylinder and the upper stand column. The guardrail stand column is reasonable in structural design and convenient to install, good limiting and fixing effects are achieved, the steel consumption is reduced while the structural strength of the guardrail stand column is guaranteed, galvanizing treatment is not needed, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering equipment, in particular to a highway guardrail column. Background Art

[0002] Highway guardrail is the main form of semi-rigid guardrail, which is a continuous structure with corrugated steel guardrail plates spliced ​​together and supported by main columns. It absorbs energy when vehicles collide with it, making it not easy to be destroyed, while also providing good protection for vehicles and drivers and passengers.

[0003] The post is an important component of the highway guardrail and an important supporting component. The roadside guardrail post should be installed on a solid earth shoulder. The interaction between the post and the roadbed soil causes the post to bend and deform, and the soil base to compress and deform, which is part of the guardrail's energy absorption process.

[0004] Most of the existing posts are made of cylindrical tubes made of carbon steel. Long-term exposure to the outside easily produces porous rust layers. The adsorbed water and sediments easily penetrate into the base metal to continue the corrosion process, affecting the overall structural strength. Galvanizing for rust prevention will cause environmental pollution, which is not conducive to promotion and use. To this end, we proposed a highway guardrail post. Utility Model Content

[0005] The purpose of the utility model is to provide a highway guardrail column 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 highway guardrail post comprises a positioning post, wherein the lower end of the positioning post is provided with a conical head, the outer wall of the positioning post is connected to a base, the four corners of the base are provided with anchor bolts, the top center of the base is abutted with a lower post, the upper end of the lower post is provided with an upper post, the axis of the lower post and the upper post are provided with a circular through groove, the lower post is sleeved on the outside of the positioning post, the lower part of the outer wall of the lower post is provided with three T-slots in the circumferential direction, the lower part of the inner cavity of the upper post is provided with an inner cylinder, the bottom of the inner wall of the inner cylinder is connected to a conical ring, and a stabilizing rod is connected between the top of the outer wall of the inner cylinder and the upper post.

[0008] Preferably, in a highway guardrail column, a stepped hole is provided on the top of the positioning column, a stepped block is inserted into the stepped hole, the lower part of the stepped block is fixed to the positioning column by a countersunk screw, an annular groove is provided on the top of the step block, a plurality of circumferentially arranged yielding openings are provided on one side of the annular groove close to the center of the step block, a return spring is connected to the yielding opening, and a clamping block is connected to the movable end of the return spring.

[0009] Preferably, in a highway guardrail column, three L-shaped steel plates are circumferentially provided on the top of the base, the vertical parts of the L-shaped steel plates extend into the T-shaped slots, the transverse parts of the L-shaped steel plates are connected to the base with fastening screws, and triangular reinforcement plates are welded at the right angles of the L-shaped steel plates.

[0010] Preferably, in a highway guardrail column, an assembly bolt penetrates the upper part of the outer wall of the upper column, the upper end of the upper column abuts against a column cap, the bottom left and right sides of the column cap are connected to arc blocks, and the arc block is provided with a guide hole for the assembly bolt to pass through.

[0011] Preferably, in a highway guardrail column, the base metal material of the lower column, the upper column and the positioning column are all made of Q415NH lightweight weathering steel.

[0012] Preferably, in a highway guardrail column, the lower portion of the outer wall of the upper column 6 is connected to the upper portion of the inner wall of the lower column by threads.

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

[0014] The utility model discloses the utility model discloses the utility model has reasonable structural design, is easy to install, uses T-slot to limit the L-shaped steel plate, can prevent the deflection of the lower column, uses the reset spring to drive the clamping block to reset, can fit the upper end of the conical ring, and achieves a good limiting and fixing effect. Through the improvement of weather-resistant steel material, it saves steel while ensuring the structural strength of the guardrail column. By utilizing the strong atmospheric corrosion resistance of weather-resistant steel, it does not need galvanizing treatment, and reduces environmental pollution. 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 schematic diagram of the overall structure of the utility model;

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

[0018] Figure 3 It is a structural schematic diagram of the step block in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the L-shaped steel plate in the utility model;

[0020] Figure 5 It is a distribution diagram of T-slots in the utility model.

[0021] In the figure: 1. positioning column; 2. conical head; 3. base; 4. anchor bolt; 5. lower column; 6. upper column; 7. T-slot; 8. inner cylinder; 9. conical ring; 10. stabilizer bar; 11. stepped hole; 12. stepped block; 13. countersunk screw; 14. annular groove; 15. clearance; 16. return spring; 17. clamping block; 18. L-shaped steel plate; 19. fastening screw; 20. triangular reinforcement plate; 21. assembly bolt; 22. column cap; 23. arc block; 24. guide hole. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 As shown, this embodiment is a highway guardrail column, including a positioning column 1, a conical head 2 is provided at the lower end of the positioning column 1, the outer wall of the positioning column 1 is connected to a base 3, anchor bolts 4 are installed at the four corners of the base 3, a lower column 5 is abutted at the top center of the base 3, an upper column 6 is installed at the upper end of the lower column 5, and circular through grooves are provided at the axis of the lower column 5 and the upper column 6. The lower column 5 is sleeved on the outside of the positioning column 1, and three T-slots 7 are circumferentially provided at the lower part of the outer wall of the lower column 5. An inner cylinder 8 is provided at the lower part of the inner cavity of the upper column 6, and a conical ring 9 is connected to the bottom of the inner wall of the inner cylinder 8. A stabilizing rod 10 is connected between the top of the outer wall of the inner cylinder 8 and the upper column 6.

[0024] A stepped hole 11 is provided at the top of the positioning column 1, and a stepped block 12 is inserted into the stepped hole 11. The lower part of the stepped block 12 is fixed to the positioning column 1 by a countersunk screw 13. An annular groove 14 is provided at the top of the step block 12. A plurality of circumferentially arranged yielding openings 15 are provided on one side of the annular groove 14 close to the center of the step block 12. A return spring 16 is connected to the yielding opening 15, and a clamping block 17 is connected to the movable end of the return spring 16. The clamping block 17 is used to limit the conical ring 9 to prevent the upper column 6 from slipping.

[0025] Three L-shaped steel plates 18 are provided on the top circumference of the base 3, the vertical part of the L-shaped steel plate 18 extends into the T-shaped slot 7, the horizontal part of the L-shaped steel plate 18 is connected to the base 3 with a fastening screw 19, and a triangular reinforcement plate 20 is welded at the right angle of the L-shaped steel plate 18. The L-shaped steel plate 18 is used in conjunction with the T-shaped slot 7 to prevent the lower column 5 from deflecting.

[0026] An assembly bolt 21 penetrates the upper part of the outer wall of the upper column 6, and a column cap 22 is abutted on the upper end of the upper column 6. Arc blocks 23 are connected to the left and right sides of the bottom of the column cap 22. The arc block 23 is provided with a guide hole 24 for the assembly bolt 21 to pass through. The column cap 22 is used to close the opening of the upper column 6 to prevent rainwater from intruding.

[0027] The base metal materials of the lower column 5, the upper column 6 and the positioning column 1 are all made of Q415NH lightweight weathering steel, and the mechanical performance assessment indicators are yield strength not less than 415MPa, tensile strength not less than 520MPa, and elongation after fracture not less than 22%.

[0028] The lower part of the outer wall of the upper column 6 is connected to the upper part of the inner wall of the lower column 5 by threads, so the installation is very convenient.

[0029] The specific implementation of this embodiment is as follows:

[0030] The utility model has reasonable structural design and convenient installation. A conical head 2 is arranged on the top of the positioning column 1, which is convenient for anchoring the positioning column 1 into the ground. The base 3 fits the ground. The anchor bolt 4 is used to improve the structural strength. The lower column 5 is sleeved on the outside of the positioning column 1, and the T-slot 7 slides down along the vertical portion of the L-shaped steel plate 18, which can prevent the lower column 5 from deflecting. The lower part of the outer wall of the upper column 6 is connected to the upper part of the inner wall of the lower column 5 by a threaded connection, and the inner cylinder 8 is connected by a stabilizing rod 10. When the inner cylinder 8 descends, the conical ring 9 extends into the annular groove 14, and the block 17 is pressed and close to the center of the stepped hole 11. The reset spring 16 is used to drive the block 17 to reset, which can fit the upper end of the conical ring 9 to achieve a limited fixing effect. The base metal materials of the lower column 5, the upper column 6 and the positioning column 1 are all made of Q415NH lightweight weather-resistant steel, which can ensure the structural strength of the guardrail column. The strong atmospheric corrosion resistance of weather-resistant steel is utilized, and galvanizing is not required, thereby reducing environmental pollution.

[0031] 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.

[0032] 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 highway guardrail column, comprising a positioning column (1), characterized in that: The lower end of the positioning column (1) is provided with a conical head (2), the outer wall of the positioning column (1) is connected to a base (3), the four corners of the base (3) are installed with anchor bolts (4), the top center of the base (3) is abutted with a lower column (5), the upper end of the lower column (5) is installed with an upper column (6), the axis of the lower column (5) and the upper column (6) are both provided with a circular groove, the lower column (5) is sleeved on the outside of the positioning column (1), the lower part of the outer wall of the lower column (5) is circumferentially provided with three T-shaped grooves (7), the lower part of the inner cavity of the upper column (6) is provided with an inner cylinder (8), the bottom of the inner wall of the inner cylinder (8) is connected with a conical ring (9), and a stabilizing rod (10) is connected between the top of the outer wall of the inner cylinder (8) and the upper column (6).

2. A highway guardrail column according to claim 1, characterized in that: The top of the positioning column (1) is provided with a stepped hole (11), a stepped block (12) is inserted into the stepped hole (11), the lower part of the stepped block (12) is fixed to the positioning column (1) by a countersunk screw (13), the top of the stepped block (12) is provided with an annular groove (14), a side of the annular groove (14) close to the center of the stepped block (12) is circumferentially provided with a plurality of clearance openings (15), a return spring (16) is connected to the clearance opening (15), and the movable end of the return spring (16) is connected to a clamping block (17).

3. A highway guardrail column according to claim 1, characterized in that: Three L-shaped steel plates (18) are provided around the top of the base (3), the vertical portion of the L-shaped steel plate (18) extends into the T-shaped slot (7), the horizontal portion of the L-shaped steel plate (18) is connected to the base (3) with a fastening screw (19), and a triangular reinforcement plate (20) is welded at the right angle of the L-shaped steel plate (18).

4. A highway guardrail column according to claim 1, characterized in that: An assembly bolt (21) penetrates the upper part of the outer wall of the upper column (6), and a column cap (22) abuts against the upper end of the upper column (6). The bottom left and right sides of the column cap (22) are connected to arc blocks (23), and the arc block (23) is provided with a guide hole (24) for the assembly bolt (21) to pass through.

5. A highway guardrail column according to claim 1, characterized in that: The base metal materials of the lower column (5), the upper column (6) and the positioning column (1) are all made of Q415NH lightweight weathering steel.

6. A highway guardrail column according to claim 1, characterized in that: The lower part of the outer wall of the upper column (6) is connected to the upper part of the inner wall of the lower column (5) via threads.

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