COMBINATION STRUCTURE OF STRAIGHT BAR AND CROSS BAR OF GUARDRAIL

Abstract

A combination structure of a straight bar and a cross bar of a guardrail is to comprise an embedding opening configured at a position where the cross bar provided for the straight bar to be inserted. The two corresponding inner walls inside the cross bar extend two the two sides of the embedding opening to form a buckle plate. The tail end of the buckle plate has a buckle part, and a distal end of the buckle part is located within a bore diameter projection range of the embedding opening. The extending direction of the buckle part is away from the embedding opening. Based on the above configuration, when the straight bar and the cross bar of the guardrail are assembled, the clamping force of two corresponding buckle plates enable the two corresponding buckle parts to strongly buckle the corresponding outer walls of two sides of the straight bar. The configuration is easily assembled and has tight stability and no residual gaps are left.

Claims

1. A combination structure of a straight bar and a cross bar of a guardrail, comprising: an embedding opening is configured at a position where the cross bar providing an end part of the straight bar to be inserted; a pair of buckle plates are configured on the two corresponding sides located at a hollow interior of the cross bar and the two sides of the embedding opening; and a buckle part is configured on a tail end of the buckle plate, wherein a distal end of the buckle part falls within a bore diameter projection range of the embedding opening, and the buckle part extends obliquely toward a direction away form away from the embedding opening.

2. The combination structure of the straight bar and the cross bar of the guardrail of claim 1, wherein the buckle plate horizontally extends from the two vertical inner walls inside the cross bar to form a horizontal section and further the horizontal section vertically extends two a direction away from the embedding opening to form a vertical section, and the vertical section further extends toward a direction away from the embedding opening to form the buckle part.

3. The combination structure of the straight bar and the cross bar of the guardrail of claim 1, wherein, the distal end of the buckle part is a sharp shape.

4. The combination structure of the straight bar and the cross bar of the guardrail of claim 1, wherein, when the cross bar is the upper cross bar of the guardrail, the embedding opening is located on a bottom surface of the upper cross bar, and when the cross bar is the lower cross bar of the guardrail, the embedding opening is located on a top surface of the lower cross bar.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a perspective view of a combination of an embodiment of the present invention.

[0009] FIG. 2 is an exploded view of an embodiment of the present invention.

[0010] FIG. 2A is a partial enlarged view of 2A part of FIG. 2.

[0011] FIG. 2B is a partial enlarged view of 2B part of FIG. 2.

[0012] FIG. 3 is a plane exploded and sectional side view of an embodiment of the present invention.

[0013] FIG. 4 is a sectional view of 4S-4S cutting line of FIG. 1.

[0014] FIG. 4A is a partial enlarged view of 3A part of FIG. 3.

[0015] FIG. 4B is a partial enlarged view of 4B part of FIG. 4.

[0016] FIGS. 5, 5A, 5B are operational views of combining the straight bar and the lower cross bar according to an embodiment of the present invention.

[0017] FIGS. 6, 6A, 6B are operational views of combining the straight bar and the upper cross bar according to an embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0018] With reference to FIGS. 13, the guardrail 1 according to an embodiment of the invention comprises a hollow upper cross bar 10 and a hollow lower cross bar 11 (collectively called as cross bars), a plurality of straight bars 12 located between the upper cross bar 10 and the lower cross bar 11.

[0019] The embedding openings 101, 111 are respectively configured on an insertion position where the bottom surface 100 of the upper cross bar 10 and the top surface 110 of the lower cross bar 11 are provided for the upper end 120 and the lower end 121 of the straight bar 12 (the upper end 120 and the lower end 121 are collectively referred to as an end portion) to be insert. The two vertical inner walls 102, 112 inside the upper cross bar 10 and the lower cross bar 11 are respectively configured with a buckle plate 13, 14 integrally extending from the vertical inner walls 102, 112, the tail end of the buckle plates 13, 14 have a buckle part 130, 140, and the buckle parts 130, 140 extends obliquely toward a direction away from the embedding openings 101, 111, thereby enabling the buckle parts 130, 140 to have a tilted and elastic pushing and pulling surface, and the distal ends 131, 141 of the buckle parts 130, 140 are located within the bore diameter projection range D, D1 of the embedding openings 101, 111 (as shown in FIG. 3) and the distal ends 131, 141 are in a sharp configuration to enhance the buckle force.

[0020] The extending direction of the above buckle plates 13, 14 as shown in FIGS. 3, 4A, 4B, and 5 is firstly that a horizontal section 13a, 14a extends horizontally from the two vertical inner walls 102, 112 inside the upper cross bar 10 and the lower cross bar 11 and further, the end portion of the horizontal sections 13a, 14a vertically extend toward the direction away from the embedding openings 101, 111 to form a vertical section 13b, 14b, the vertical sections 13b, 14b further extends obliquely toward the direction away from the embedding openings 101, 111 to form a buckle parts 130, 140, and the distal ends 131, 141 of the buckle parts 130, 140 fall within the bore diameter projection range D, D1 of the embedding openings 101, 111, thereby enabling the buckle plates 13, 14 and the buckle parts 131, 141 to have a force to clamp toward the bore diameter projection range D, D1.

[0021] As shown in FIGS. 5, 5A, 5B, when the lower cross bar 11 is assembled with the lower end 121 of the straight bar 12, the lower end 121 of the straight bar 12 is inserted from the embedding opening 111. The bottom surface of the lower end 121 of the straight bar 12 pushes the tilted pushing and pulling surface corresponding to the buckle part 140 outward, thereby enabling the distal end 141 withdrawing from the bore diameter projection range D1 (as shown in FIG. 5A), and meanwhile, the sharp distal end 141continuously maintains a strong and tight tough with the outer wall of the straight bar 12. When the lower end 121 of the straight bar 12 is inserted completely, the distal ends 141 of the two corresponding buckle parts 140 remain to buckle the left and right outer walls of the lower end 121 of the straight bar 12 via the clamping force thereof and fix the lower end 121 of the straight bar 12. When the upper cross bar 10 is assembled with the upper end 120 of the straight bar 12 a shown in FIGS. 6, 6A, and 6B, the embedding opening 101 of the upper cross bar 10 is provided to insert the upper end 120 of the upper cross bar 10 and the assembly process is similar to the foregoing lower cross bar 11 and the straight bar 12.

[0022] The upper cross bar 10 and the lower cross bar 11 of the present invention have same structure and the only modification is made on the assembly direction to be 180 degrees. Therefore, the two can be manufactured with the same set of molds.

[0023] As described above, the present invention at least has the following advantages and effects on application.

[0024] 1. The upper cross bar 10 and the lower cross bar 11 of the present invention have same structure and the only modification is made on the assembly direction to be 180 degrees. Therefore, the two bars can be manufactured with the same set of molds to save manufacturing cost.

[0025] 2. In the present invention, the sharp distal ends 131, 141 of two corresponding buckle parts 130, 140 are used to buckle the outer wall of the straight bar 12 and the extending direction of the buckle plates 13, 14 enable the two corresponding buckle parts 130, 140 to have a strong clamping force, thereby enabling the straight bar 12 to be inserted into the upper cross bar 10 and the lower cross bar 11 to be combined, and the two corresponding sharp distal ends 131, 141 can tightly clamp and buckle the outer walls of two sides of the straight bar 12. The assembly is easy and convenient with good tightness and stability to avoid the residual gap left.

[0026] In summary, the present invention meets the requirements of novelty, inventiveness and practical applicability, and therefore an application for patent is hereby filed according to the law. Your examination and approval will be highly appreciated.