Upper connecting device for the road cone body

Abstract

In the field of road cone technology, we provide an upper connecting device for the road cone body. [Solution] The structure includes a horizontal annular plate portion 10, with a cylindrical portion 30 integrally formed below the inner peripheral edge of the annular plate portion. A vertical groove 31 is formed on the inner wall of the cylindrical portion, and a plurality of extensions 32 are formed on the lower end surface 35 of the cylindrical portion, projecting downward at intervals in the circumferential direction. An outwardly folded edge portion 34 is formed at the tip of each extension, functioning as a locking claw. Furthermore, an annular outer shell 20 is formed below the outer peripheral edge of the annular plate portion, gradually expanding in diameter from top to bottom. Annular grooves 21 are provided on the outer peripheral surface of the outer shell at intervals in the vertical direction, and annular ribs 22 are provided on the inner peripheral surface at intervals in the vertical direction. The structure is simple, has excellent gripping and reflective sheet fixing properties, and can be applied as an upper connecting structure for road cones.

Description

Technical Field

[0001] This invention belongs to the technical field related to road cones, and particularly relates to the upper connecting device of the road cone body.

Background Art

[0002] During road construction or when traffic accidents occur, in order to prevent the occurrence of dangers and secondary accidents, it is common to install road cones at a predetermined distance behind the work site or accident site to give warnings and guide vehicles. Road cones are excellent in storage and transportation, and can form a temporary warning area in a short time, thus contributing to the construction efficiency of road construction and the rapid handling of accidents, and playing an important role in ensuring the safety of on-site personnel. Therefore, road cones have become an essential warning tool in road traffic management. Conventional road cones are mainly passive reflective types, and generally have a structure in which the headlight light of vehicles is reflected by a reflective sheet provided on the outer surface to inform the driver of the presence of obstacles ahead. This reflective sheet is a resin film containing fluorescent pigments and is generally adhered to the outer surface of the cone body. However, road cones are often permanently installed outdoors and are easily affected by long-term wind, rain and direct sunlight, so there is a risk that the reflective sheet will peel off from the cone body and the warning function will decline or失效. In addition, some road cones have a smooth outer surface, so there is also a problem that it is difficult to grip when moving.

Summary of the Invention

[0003] An object of this invention is to provide an upper connecting device for a road cone body that can easily grip the road cone and can securely fix a reflective sheet containing fluorescent pigments.

[0004] To achieve the above object, this invention adopts the following technical configurations. The upper connecting device for the road cone body comprises a horizontal annular plate section, with a cylindrical section integrally formed below the inner circumferential edge of the annular plate section. A vertical groove is formed on the inner wall of the cylindrical section, and a plurality of extensions projecting downward at circumferential intervals are formed on the lower end surface of the cylindrical section. An outwardly folded edge is formed at the tip of each extension, functioning as a locking claw. Furthermore, an annular outer shell is formed below the outer circumferential edge of the annular plate section, gradually expanding in diameter from top to bottom. Annular grooves are provided on the outer circumferential surface of the outer shell at vertical intervals, and annular ribs are provided on the inner circumferential surface at vertical intervals. Preferably, the annular groove is a corrugated groove and may be formed to be continuous in the circumferential direction along the outer circumference of the outer shell. Preferably, the annular groove may be formed in a triangular cross-sectional shape. Preferably, the triangular cross-sectional groove may have its corners smoothly chamfered. Preferably, the cross-sectional shape of the annular rib may be triangular or semicircular. Preferably, the upper connecting device of the road cone body according to the present invention may be a structure integrally molded by injection molding of a resin material. Preferably, the folded edge portion may have a shape in which the thickness gradually decreases from the inside to the outside. Preferably, the lower surface of the folded edge may have a shape in which the distance from the lower end surface gradually increases from the inside to the outside. Preferably, the longitudinal groove may be a rectangular cross-section groove. Preferably, the wall thickness of the cylindrical portion and the wall thickness of the longitudinal groove portion may be of equal thickness.

[0005] Compared to conventional technology, the beneficial effects of this invention are as follows: 1. In this invention, annular ribs are provided on the inner surface of the outer shell at intervals in the vertical direction. This configuration ensures that the reflective sheet containing fluorescent pigment is securely fixed when connected to the lower body of the road cone, and the reflective sheet is less likely to peel off the cone body. 2. By forming an annular groove on the outer surface of the outer shell, the road cone is easier to grip when moving, improving work efficiency. 3. By providing a locking claw on the lower end surface of the cylindrical part, engagement with the lower body of the road cone is facilitated, improving assembly workability. 4. This invention has a simple structure, excellent gripping and reflective sheet fixing properties, and can be applied as an upper connecting structure for road cones. [Brief explanation of the drawing]

[0006] [Figure 1] Figure 1 is a plan view of the present invention. [Figure 2] Figure 2 is a cross-sectional view along line AA in Figure 1. [Figure 3] Figure 3 is a three-dimensional view of the present invention. [Modes for carrying out the invention]

[0007] The embodiments of this invention will be described in detail below with reference to the drawings. As shown in Figures 1 to 3, the upper connecting device for the road cone body according to this embodiment includes a horizontal annular plate portion 10, and a cylindrical portion 30 is integrally formed below the inner peripheral edge of the annular plate portion 10. A vertical groove 31 is formed on the inner wall of the cylindrical portion 30, and a plurality of extensions 32 are formed on the lower end surface 35 of the cylindrical portion 30, projecting downward at intervals in the circumferential direction. An outwardly folded edge portion 34 is formed at the tip of each extension portion 32, which functions as a locking claw. Furthermore, an annular outer shell 20 is formed below the outer peripheral edge of the annular plate portion 10, with the diameter gradually increasing from top to bottom. Annular grooves 21 are provided on the outer peripheral surface of the outer shell 20 at intervals in the vertical direction, and annular ribs 22 are provided on the inner peripheral surface at intervals in the vertical direction.

[0008] In a preferred embodiment, the annular groove 21 may be a corrugated groove and may be formed to be continuous in the circumferential direction along the outer circumference of the outer shell 20. In a preferred configuration, the annular groove 21 may be formed with a triangular cross-sectional shape. In a preferred configuration, the triangular cross-sectional groove may have its corners smoothly chamfered. In a preferred configuration, the cross-sectional shape of the annular rib 22 may be triangular or semicircular. In a preferred form, the upper connecting device of the road cone body according to the present invention may be a structure integrally molded by injection molding of a resin material. In a preferred configuration, the folded edge portion 34 may have a shape in which the thickness (D) gradually decreases from the inside to the outside. In a preferred configuration, the lower surface 33 of the folded edge portion 34 may have a shape in which the distance from the lower end surface gradually increases from the inside to the outside. In a preferred configuration, the longitudinal groove 31 may be a groove with a rectangular cross-section. In a preferred configuration, the wall thickness of the cylindrical portion 30 and the wall thickness of the vertical groove portion 31 may be of equal thickness.

[0009] Although embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and those skilled in the art can make appropriate changes, substitutions, or modifications without departing from the technical idea and spirit of the present invention, and all such modifications are included within the scope of protection of the present invention.

Claims

1. An upper connecting device for the road cone body, It has a horizontal annular plate section, A cylindrical portion is integrally formed below the inner peripheral edge of the annular plate portion. A vertical groove extending in the vertical direction is formed on the inner wall of the cylindrical portion. Multiple extensions are formed on the lower end surface of the cylindrical portion, projecting downward at circumferential intervals. Each extended section has an outwardly folded edge at its tip, which functions as a locking claw. Below the outer edge of the annular plate, an annular outer shell is formed that gradually widens in diameter from top to bottom. The outer surface of the aforementioned outer shell is provided with annular grooves formed at intervals in the vertical direction. The inner circumferential surface is provided with annular ribs formed at intervals in the vertical direction. An upper connecting device for the road cone body, characterized by the following features.

2. The aforementioned annular groove is a corrugated groove and is formed to be continuous in the circumferential direction along the outer circumference of the outer shell. The upper connecting device for the road cone body according to claim 1, characterized in that...

3. The annular groove is formed with a triangular cross-sectional shape. The upper connecting device for the road cone body according to claim 1, characterized in that...

4. The corners of the groove with the aforementioned triangular cross-sectional shape are smoothly chamfered. The upper connecting device for the road cone body according to claim 3, characterized by the above.

5. The cross-sectional shape of the annular rib is triangular or semicircular. The upper connecting device for the road cone body according to claim 1, characterized in that...

6. The entire structure is integrally molded using injection molding of resin material. The upper connecting device for the road cone body according to claim 1, characterized in that...

7. The folded edge has a shape in which the thickness gradually decreases from the inside to the outside. The upper connecting device for the road cone body according to claim 1, characterized in that...

8. The lower surface of the folded edge is shaped such that the distance from the lower end surface gradually increases from the inside to the outside. The upper connecting device for the road cone body according to claim 1, characterized in that...

9. The longitudinal groove shall have a rectangular cross-section. The upper connecting device for the road cone body according to claim 1, characterized in that...

10. The thickness of the cylindrical portion and the wall thickness of the longitudinal groove portion are to be of equal thickness. The upper connecting device for the road cone body according to claim 1, characterized in that...

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