KR20040008694A - Single layer of bar type heat shrinkable closure for connecting cables - Google Patents

Abstract

PURPOSE: A single rod layer type thermal contraction pipe is provided to allow for ease of manufacture and construction by improving the structure of the thermal contraction pipe, while achieving improved resistance against abrasion and corrosion. CONSTITUTION: A single rod layer type thermal contraction pipe comprises a contraction unit(100) made of a flexible polyethylene material contacting at the temperature of approximately 1000 Deg.C, wherein the contraction pipe has both ends covering rail rods(111) so as to form rails(110), an outer surface coated with a thermo-paint(121), and an inner surface coated with an adhesive(122) and attached with an adhesive protection vinyl(123); and a channel pad(200) bonded integrally with the end of the inner surface of the contraction unit, and disposed between the two rails of the contraction unit when the two rails contact with each other by a channel.

Description

Single layer of bar type heat shrinkable closure for connecting cables}

The present invention relates to a sealed end-type heat shrink tube for cable connection, and in particular, to improve the heat shrink tube that protects the connection between the cables by shrinking the heat is not only easy to manufacture and construct a simple structure, but also to increase the durability The present invention relates to a device that can be manufactured and constructed with a simple structure, thereby increasing productivity and economy, and having excellent moisture and insulation performance, and improving resistance to abrasion and corrosion.

In general, heat shrinkable tube is made of resilient resin product, and when the channel is inserted into the rail and heated, the diameter is shrunk and reduced, and the cable sheath such as communication, signal, and electric power is completely sealed, or the pipe of gas, water, chemical, oil, etc. is connected. It is used for site protection.

1 is a partially cutaway perspective view showing a single layer heat shrink tube for a general cable connection.

As shown in FIG. 1, a single-layered heat shrink tube for connecting a cable has a rail 11 formed at both ends of a material that contracts under high temperature heat, and protrudes from a side surface of the rail 11 located at one side. The wing 12 is formed of a contraction portion 10 is formed.

The single-layered heat shrink tube for connecting a general cable configured as described above is integrally formed in the contraction portion 10 by the rail 11 and the channel wings 12 of the same material.

When constructing a connection part such as a cable using a single-layered heat shrink tube for connecting a cable, the rails 11 formed at both ends of the contraction portion 10 are wrapped to abut each other, After positioning the connection portion of the cable so that the metal protective tube (not shown) penetrates the inner surface, a channel (not shown) made of a metal material is inserted into the rail 11 which is in contact with each other.

Subsequently, when the outer surface of the contraction portion 10 is heated to a high temperature by a heating means such as a torch, the contraction portion 10 is contracted while being sealed while wrapping a connection part such as a cable.

Fig. 2 is a partially cutaway perspective view showing a conventional multilayered heat shrink tube for cable connection.

As shown in FIG. 2, the conventional multi-layered heat shrink tube for cable connection is formed of a rail 11 having both ends surrounding the rail rods 11a by a material contracting by high temperature heat, and having a first shrinkage surface located on the outside. (13) and a contraction portion (10) consisting of a second contraction surface (14) located inside and a reinforcement (15) laminated between the first and second contraction surfaces (13); The second contraction surface 14 of the contraction portion 10 is integrally joined to one end of the contraction portion 10 when the rail 11 of the contraction portion 10 is contacted by a channel (not shown), It consists of a channel pad 20.

The conventional multi-layered heat shrink tube for connecting a cable is configured to stack the contraction portion 10 into the first contraction surface 13 and the second contraction surface 14 and to be inserted in the center thereof. When the heat shrink pipe is installed in the connection portion of the cable, etc., to have a high strength.

However, the conventional single-layer heat shrink tube for cable connection has a problem that the rail is easily detached from the channel as the heat shrink occurs when it is to be installed on the connection portion having a large diameter, the conventional multi-layer heat shrink tube for cable connection has a contraction The first shrinkage surface, the second shrinkage surface, and the reinforcement material are not only high in manufacturing cost, but also complicated in the manufacturing process, and during thermal shrinkage, peeling of the shrinkage portion into the first shrinkage surface, the second shrinkage surface, and the reinforcement is likely to occur. There was a technical problem.

The present invention is to solve the above problems, by improving the heat shrink tube that protects the connection between the cable can be manufactured and constructed in a simple structure to increase productivity and economics, while also excellent moisture and insulation performance, wear and corrosion To provide a sealed single-layer heat shrink tube for the cable connection to improve the resistance to.

The present invention is a flexible polyethylene material that shrinks at a temperature of about 1000 ℃ to form a rail at both ends to surround the rail rod, the outer surface is coated with a time-temperature agent, the adhesive is applied to the inner surface to protect the adhesive protective vinyl attached Contracted portion; When the two rails of the contraction portion are integrally bonded to one end portion of the inner surface of the contraction portion and contacted by the channel, it is achieved by constructing a channel pad positioned inside the contraction portion.

Figure 1 is a partial cutaway showing a single layer heat shrink tube for a typical cable connection

Perspective,

2 is a partially cutaway perspective view showing a conventional multi-layered heat shrink tube for cable connection;

Figure 3 is a partially cut away showing the end layer heat shrink tube for cable connection of the present invention.

Perspective,

4 is a view showing the construction for the end-stage heat shrink tube for cable connection of the present invention

Exploded View,

5 is before the construction of the sealing single layer heat shrink tube for connecting the cable of the present invention

Partially cutaway perspective view,

Figure 6 is after the construction for the sealing single-ended heat shrink tube for cable connection of the present invention

Some notch perspective shown.

<Explanation of symbols for the main parts of the drawings>

100: contraction portion 110: rail

111: rail rod 121: municipal temperature

122: adhesive 123: adhesive protective vinyl

200: channel pad 300: channel

400: cable 500: metal protective tube

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a partially cutaway perspective view showing the end layer heat shrink tube for cable connection of the present invention, Figure 4 is an exploded perspective view showing the construction of the end layer heat shrink tube for cable connection of the present invention.

5 is a partially cutaway perspective view showing the construction before connecting the end-stage heat shrinkable tube for cable connection of the present invention, and FIG. 6 is a part showing the construction after the end-stage heat shrinkable tube for cable connection of the present invention. It is a notch perspective view.

As shown in Figure 3 to 6, the end-type heat shrink tube for cable connection of the present invention, both ends of the rail rod 111 is wrapped in a flexible polyethylene material that shrinks at a temperature of about 1000 ℃ rail 110 And a shrinkage part 100 having an adhesive protection vinyl 123 attached to the outer surface, and a time-temperature agent 121 applied to the outer surface, and an adhesive 122 applied to protect the inner surface thereof; When the two rails 110 of the contraction portion 100 are integrally bonded to one end of the inner surface of the contraction portion 100 and contacted by the channel 300, the channel pads 200 are positioned inside the contraction portion 100. It is the basic characteristic of the technology.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 3 to 6.

As shown in Figure 3 is a single-ended heat shrink tube for cable connection of the present invention configured as described above, when the outer surface of the contraction portion 100 receives a high temperature of about 1000 ℃, the specific pattern disappears or disappears Appearing the test temperature 121 is applied, the inner surface of the contraction portion 100 is maintained in a solid state at room temperature, when the high heat is applied, the adhesive 122 is dissolved in a liquid state, such an adhesive 122 The adhesive protection vinyl 123 is attached to prevent foreign matters from contamination.

The single layer heat shrinkable tube for cable connection of the present invention is a product produced from polyethylene as a main raw material, and has a profile that has undergone the process of the first compounding work, the second extrusion work, and the third handing work to increase durability by a constant blending ratio. It is manufactured by stretching about 400 ~ 600% in a specially produced tentagi production line. After that, when subjected to a high temperature of about 1000 ° C. during construction, it is molded into a restorative resin product which shrinks and reduces to its original dimensions.

When constructing the connection portion of the cable 400 or the like using the end-single layer heat shrink tube for cable connection of the present invention, as shown in Figure 4, the adhesive is attached to the inner surface of the contraction portion 100 After removing the protective vinyl 123, while the rails 110 formed at both ends are wrapped to abut each other, the connection portion of the cable 400 is positioned so that the metal protective tube 500 penetrates the inner surface of the contraction portion 100. Then, as shown in Figure 5, to insert the channel 300 made of a metal material for fixing the rail 110 in contact with each other.

Subsequently, when the outer surface of the contraction portion 100 is heated to a high temperature by a heating means such as a torch, as shown in FIG. 6, the contraction portion 100 is contracted and a connection portion of the cable 400 or the like. It is sealed while wrapped with a metal protective tube (500).

In this case, the rail 110 is provided with a rail rod 111 to prevent the rail 110 from being separated from the channel 300 during the contraction of the contraction portion 100 by receiving high heat. .

At the same time, the adhesive 122 applied to the inner surface of the contraction portion 100 in a solid state is melted under high heat, and the connection of the metal protective tube 500 and the cable 400, etc., in which the contraction portion 100 is wrapped. By penetrating into the site and solidifying, it is possible to seal these connections and to firmly connect each other.

In addition, while visually observing the time temperature agent 121 applied to the outer surface of the shrinkage portion 100, the color of the time temperature agent 121 is confirmed whether the shrinkage portion 100 by using a heating means such as a torch. ) Can be applied evenly to the whole, thereby preventing the secondary hole.

Therefore, the single-ended heat shrink tube for connecting the cable of the present invention is made of a single material of the shrinkage portion 100, and at the same time the rail rod 111 is provided on the rail 110, the heat shrink tube will shrink under high heat At this time, the contraction of the contraction part 100 does not occur and the rail 110 is not separated from the channel 300 so that the construction may be performed regardless of the diameter of the connection part.

In addition, the structure and manufacturing process is simpler than the conventional multi-layered heat shrink tube for connecting the cable has the advantage of low production cost, using the shrinkage portion 100 and the heat shrinkage tube 121 applied to the outer surface during construction It can be easily determined by the naked eye whether the adhesive 122 is heated evenly as a whole, it is possible to prevent the secondary hole in advance.

The present invention as described above can be manufactured and constructed in a simple structure by improving the heat shrink tube to protect the connection between the cables to increase productivity and economics, while also excellent moisture and insulation performance, and improve the resistance to wear and corrosion It is an invention that can be.

Claims (1)

Flexible polyethylene material that shrinks at a temperature of about 1000 ℃ forms both sides of the rail rod to form a rail, and the outer surface is coated with a temperature reagent, and the inner surface is coated with an adhesive protective vinyl to protect it. ; An end layer heat shrink tube for cable connection, comprising: a channel pad that is integrally joined to one end of an inner surface of the contraction part and is positioned inside the contraction when two rails contact each other by a channel.