TWM673449U - Safety guardrail - Google Patents

Abstract

This invention proposes a safety guardrail having a guardrail body and a plurality of heat-shrink films. The guardrail body has a plurality of rods, each of which can be connected to another rod and has an outer ring surface and two end faces. The two end faces are respectively located at the two ends of the rods. Each heat-shrink film is affixed to the outer ring surface and the two end faces of one of the rods. The advantage of this invention is that by affixing the heat-shrink film to the outer ring surface and the two end faces of the rods, after the rods are engaged with each other, the heat-shrink film still affixes to the joints of the rods, that is, the end faces of the rods. Therefore, even if moisture penetrates into the joints of the rods, the heat-shrink film can still protect the rods from rusting or paint peeling. In addition, heat shrink film covering the end of the rod can also protect construction workers from being cut by the sharp end of the rod during transportation or assembly, thereby improving construction safety.

Description

Safety guardrail

This invention proposes a safety guardrail, in particular a safety guardrail provided with a heat-shrink film.

Existing safety guardrails used on construction sites primarily serve to separate construction areas or are installed around platforms, stairways, or deep wells to prevent workers from falling. Existing safety guardrails are typically assembled from multiple steel pipes. To protect these pipes from rusting and paint loss due to prolonged exposure to wind, sun, and rain, they are often wrapped with a layer of heat-shrink film.

Conventional safety guardrails are manufactured by wrapping a long steel pipe with heat-shrink film before cutting it. However, this method leaves the cut surface of the pipe exposed. The sharp end of the pipe after cutting can easily cause injuries to construction workers during handling or assembly. Furthermore, after the safety guardrail is assembled, moisture can penetrate the joints between the pipes. If the cut surface of the pipe is not covered with heat-shrink film, the interior of the pipe may rust or lose paint.

In view of this, proposing a better improvement solution is an urgent problem to be solved in this industry.

The main purpose of this invention is to propose a safety guardrail that solves the problem of the cut surface of the steel pipe in the safety guardrail being unprotected by heat shrink film, which easily causes construction workers to be cut by the end surface of the steel pipe during transportation or assembly, and allows moisture to penetrate through the joints between the steel pipes.

To achieve the above-mentioned objectives, the present invention proposes a safety guardrail comprising: a guardrail body having: a plurality of rods, each of which can be connected to another rod, each of which has: an outer ring surface; two end surfaces, which are respectively located at the two ends of the rod; and a plurality of heat-shrink films, each of which is affixed to the outer ring surface and the two end surfaces of one of the rods.

As described above, the plurality of rods are hollow, and each of the heat shrink films can extend from the outer surface of one of the rods to the interior of the rod.

As described above, the two adjacent rods can be engaged with each other, and the outer diameter of one of the two adjacent rods is equal to the inner diameter of the other rod.

As described above, the plurality of rods of the guardrail body include: two straight rods, which are spaced apart from each other and one end of each straight rod can be fixed to the ground; and two cross rods, which are spaced apart and connected to the two straight rods.

The safety guardrail as described above further comprises: a partition disposed between the two vertical bars and the two horizontal bars, and the plurality of heat shrink films can be attached to the partition.

The advantage of this design lies in that by applying heat-shrink film to the outer surface and both end faces of the rods, even after the rods are locked together, the film remains attached to the joints between the rods, i.e., the end faces. Therefore, even if moisture seeps into the joints, the film still protects the rods from rusting or paint peeling. Furthermore, since the heat-shrink film covers the end faces of the rods, it also protects construction workers from being cut by the sharp ends of the rods during handling or assembly, improving construction safety. In addition, when the rods are locked together, the heat shrink film will be located between the outer ring surface of the rod and the inner surface of the other rod, thereby increasing the tightness of the two rods when locked together and preventing moisture from seeping between the rods.

Please refer to Figures 1, 4 and 7. This invention proposes a safety guardrail having a guardrail body 10, a plurality of heat-shrink films 20 and a partition 30, wherein the safety guardrail may not have the partition 30.

Please refer to Figures 2 and 3. The guardrail body 10 has a plurality of rods 11. The rods 11 can be connected to each other. In this embodiment, the rods 11 are hollow and each rod 11 has an outer annular surface 111 and two end surfaces 112.

The outer annular surface 111 is the side surface of the rod 11, and the two end surfaces 112 are located at the two ends of the rod 11. In this embodiment, the outer diameter of one rod 11 is equal to the inner diameter of the other rod 11, so that the two adjacent rods 11 can be interlocked. In other embodiments, the connection between rods 11 is not limited to this. Multiple rods 11 can also be interlocked with a connector, or a rod 11 can be inserted into the outer annular surface 111 of another rod 11.

Please refer to Figures 3 to 6. The heat shrink film 20 is applied to the outer surface of one of the rods 11. In other words, the heat shrink film 20 is applied to the outer annular surface 111 and the two end surfaces 112 of one of the rods 11. Figure 3 is a three-dimensional schematic diagram of the rod and the heat shrink film to illustrate the end surface shape of the heat shrink film 20 after forming. However, when implementing this invention, the heat shrink film 20 and the rod 11 cannot be separated. Since the heat shrink film 20 covers the end surface 112 of the rod 11, the sharp end surface 112 of the rod 11 will not be exposed, thereby protecting construction workers from being cut by the sharp end surface 112 of the rod 11 during transportation or assembly, thereby improving construction safety.

In this embodiment, the heat shrink film 20 extends from the outer surface of the rod 11 to the interior of the rod 11. Specifically, the heat shrink film 20 extends from both end surfaces 112 toward the interior of the hollow tube. In this embodiment, because two adjacent rods 11 can be interlocked, when one rod 11 is inserted and engaged with the other rod 11, the rod 11 pierces the heat shrink film 20 located on the end surface 112 of the other rod 11 and engages with the other rod 11. At this time, the heat shrink film 20 is interposed between the outer annular surface 111 of the rod 11 and the inner surface of the other rod 11, thereby increasing the tightness of the engagement between the two rods 11 and preventing moisture from penetrating between the rods 11.

Please refer to Figures 1, 4 and 7. In this embodiment, the rod 11 of the guardrail body 10 includes two straight rods 12 and two cross rods 13. The two straight rods 12 are arranged at intervals from each other, and one end of each straight rod 12 can be fixed to the ground. The two cross rods 13 are connected between the two straight rods 12 to form a rectangular frame. The number of straight rods 12 and cross rods 13, the connection method and material of each rod 11 can be changed according to user needs. The partition 30 can be arranged between the straight rods 12 and the cross rods 13. In other words, the partition 30 can be arranged in the rectangular frame. The heat shrink film 20 can be applied to the partition 30 to protect the partition 30 from rusting or paint peeling.

To use this device, the rods 11 (the straight rods 12 and crossbars 13) are first covered with heat-shrink film 20. Heat is applied to shrink the film 20 until it adheres to the outer circumference 111, end faces 112, and a portion of the inner surface of the rods 11. The partitions 30 are then covered with heat-shrink film 20 and heated until the film 20 adheres to the partitions 30. The rods 11 (the straight rods 12) are then placed on the ground and secured. The crossbars 13 and the partitions 30 are then connected to form a guardrail. Compared to the prior art method of wrapping a long rod with heat shrink film and then cutting it into appropriate lengths, where the cut parts are not covered by the heat shrink film, this invention pre-cuts the rod 11 into appropriate lengths and then wraps it with heat shrink film 20, so that both ends of each rod 11 can be covered by the heat shrink film 20.

The advantage of this invention lies in that by applying heat-shrink film 20 to the outer annular surface 111 and both end surfaces 112 of the rod 11, even after the rods 11 are engaged, the heat-shrink film 20 still covers the joints of the rods 11, namely the end surfaces 112 of the rods 11. Therefore, even if moisture penetrates the joints of the rods 11, the heat-shrink film 20 can still protect the rods 11 from rusting or paint peeling. At the same time, because the heat-shrink film 20 covers the end surfaces 112 of the rods 11, it also protects construction workers from being cut by the sharp end surfaces 112 of the rods 11 during transportation or assembly, thereby improving construction safety. In addition, after the rods 11 are engaged with each other, the heat shrink film 20 will be located between the outer annular surface 111 of the rod 11 and the inner surface of the other rod 11, thereby increasing the tightness of the engagement of the two rods 11 and preventing moisture from penetrating between the rods 11.

10: Guardrail body 11: Rod 111: Outer ring surface 112: End surface 12: Straight rod 13: Horizontal rod 20: Heat shrink film 30: Partition

Figure 1 is a three-dimensional diagram of a guardrail body of the present invention; Figure 2 is a three-dimensional diagram of a rod of the present invention; Figure 3 is a three-dimensional schematic diagram of the rod and the heat-shrink film of the present invention; Figure 4 is a front view of the rod and the heat-shrink film of the present invention; Figure 5 is a cross-sectional diagram of the connection of two of the rods of the present invention; Figure 6 is a partial cross-sectional diagram of two of the rods of the present invention; and Figure 7 is a three-dimensional diagram of the present invention.

111: Outer Ring Road

112: End face

20: Heat shrink film

Claims (5)

A safety guardrail comprises: a guardrail body having: a plurality of rods, each of which can be connected to another rod, each of which has: an outer ring surface; two end surfaces, which are respectively located at the two ends of the rod; and a plurality of heat shrink films, each of which is applied to the outer ring surface and the two end surfaces of one of the rods. The safety fence as described in claim 1, wherein the plurality of rods are hollow and each of the heat-shrink films can extend from the outer surface of one of the rods to the interior of the rod. The safety guardrail as claimed in claim 1 or 2, wherein the two adjacent rods are capable of interlocking with each other, and the outer diameter of one of the two adjacent rods is equal to the inner diameter of the other rod. A safety guardrail as described in claim 1 or 2, wherein the plurality of rods of the guardrail body include: two straight rods, the two straight rods are arranged at intervals from each other, and one end of each straight rod can be fixed to the ground; and two cross rods, the two cross rods are connected to the two straight rods at intervals. The safety guardrail as described in claim 4 further comprises: a partition disposed between the two vertical rods and the two horizontal rods, and the multiple heat-shrink films can be attached to the partition.