KR102758428B1 - Connection kit for heating wire - Google Patents

Abstract

The connection kit for a heating wire of the present invention is characterized by including: a connection box having a hexahedral body with an open top surface and two or more cable attachment holes formed on a side surface so that a heating wire or electric wire can be introduced and connected into the body; a door provided on the open top surface of the connection box; a latch selectively locking the door so that it does not open while the open top surface of the connection box is closed; and a leg stand having legs of a predetermined height integrally formed on both ends of one side of a flat base plate and a fastening means provided on the other side of the base plate for selectively attaching and detaching to the bottom surface of the connection box.

Description

Connection kit for heating wire {Connection kit for heating wire}

The present invention relates to a connection kit for a heating wire, and more specifically, to a connection kit for a heating wire, which enables a connection box to be installed regardless of the height of the insulation material wrapped around a pipe by using a leg stand, and which enables the connection status of the heating wire to be checked by opening the lid of the connection kit for easy and continuous maintenance, and the insulation status of the cable to be conveniently checked through an insulation resistance test.

In general, heating wires for freeze prevention use the heat generated when current is applied to a resistor such as a conductor. They are flexible, easy to install and design, and can be freely cut to any length depending on the on-site situation. They are installed in pipes such as water pipes exposed to the outside air, water tanks installed on rooftops, and water meters in apartments or single-family homes, and are used in various ways everywhere to prevent freezing in winter.

In the past, in order to use a cut freeze-prevention heating wire, the covering surface formed at the end of the cut freeze-prevention heating wire was stripped off as described above, and the conductors inside the heating wire were interconnected. At this time, in order to protect the conductors exposed to the outside, the connected portion of the cut freeze-prevention heating wire was extended and branched using a terminal block or the like.

Therefore, workers could freely cut the length according to the on-site situation and safely install the heating wire by interconnecting the cut heating wire.

However, when using insulating tape on conductors exposed when connecting a heating wire, there was a problem in that the insulation of the insulating tape exposed to the outside was rapidly destroyed by moisture, foreign substances, etc. contained in the atmosphere, and if the insulation of the insulating tape was destroyed, the risk of fire increased.

Meanwhile, to prevent this, a method of connecting the heating wire and the electric wire using a separate connection box made of insulator is being used, but there was a problem that the installation of the connection box was not easy because insulation is usually wrapped around pipes, etc.

In this case, the worker unwound the insulation wrapped around the pipe, directly fixed the connection box to the pipe using a stainless steel band or cable tie, and then wrapped the insulation again on top of it, or temporarily fixed the connection box on top of the insulation without unwrapping the insulation. However, this also resulted in a weak bond between the installed connection box and the pipe, and during periodic maintenance and testing by season, the caulking for waterproofing the heating wire could break, losing the waterproofing function, or the lack of work space could cause inconvenience to the worker.

(Patent Document 1) Korean Registered Utility Model No. 0236806 (Registered on June 22, 2001)

(Patent Document 2) Korean Patent No. 2200483 (Registered on January 4, 2021)

Accordingly, the present invention has been made to solve the above problems, and the purpose of the present invention is to provide a connection kit for a heating wire, which enables installation of a connection box regardless of the height of the insulation material by using a leg stand even when insulation material is wrapped around a pipe, and which allows easy and continuous maintenance by opening the lid of the connection kit to check the connection status of the heating wire and conveniently check the covering status of the cable through an insulation resistance test.

In order to achieve the above object, the present invention provides a connection kit for a heating wire, according to one embodiment, comprising: a connection box having an open upper surface and two or more cable attachment holes formed on a side surface of a hexahedral body so that a heating wire or electric wire can be introduced and connected into the body; a door provided on the open upper surface of the connection box; a latch selectively locking the door so that it does not open while the open upper surface of the connection box is closed; and a leg stand having legs of a predetermined height integrally formed on both ends of one side of a flat base plate, and a fastening means provided on the other side of the base plate for selectively attaching and detaching to the bottom surface of the connection box.

In addition, according to one embodiment, a support projection is further formed on the bottom surface of the connection box, which has an arch-shaped curved mounting groove formed at the middle portion so that the connection box can be supported while being mounted on a flat surface or a round curved surface of a pipe.

Additionally, according to one embodiment, a cutting groove is further formed at the connection portion between the leg of the leg stand and the base plate to selectively tear off and separate the leg from the base plate.

In addition, according to one embodiment, the fastening means includes: a fastening hook integrally formed on both ends of the other side of the base plate; and a fastening groove formed at a position corresponding to the fastening hook on the side of the connection box and configured to be fastened or released by selectively engaging the fastening hook.

In addition, according to one embodiment, a support projection fixing hole is formed in the base plate so that the support projection of the connection box can be fitted therein and fixed so as not to shake sideways.

Additionally, according to one embodiment, the other side of the base plate is provided with screw holes formed at regular intervals to secure the base plate to a wall or rack with the legs removed by cutting out the grooves.

Additionally, according to one embodiment, the end of the opposite leg of the base plate is formed with a curved seating groove that is bent so as to correspond to the rounded surface of the pipe while being parallel to the longitudinal direction of the pipe.

In addition, according to one embodiment, when installing the leg stand on a pipe, the legs of the leg stand are inserted under the insulation of the pipe, and then the gap between the leg stand and the insulation is caulked with silicone to provide a waterproof finish.

In addition, according to one embodiment, a sawtooth-shaped cable fixing hole is integrally formed inside the connection box to fix an end of a heating wire or electric wire introduced into the inside of the connection box through a cable attachment hole.

In addition, according to one embodiment, a screw-joining groove is formed inside the connection box in the form of an elongated screw hole so that accessories of various sizes can be combined.

As described above, the present invention enables the connection box to be installed simply and quickly by using a leg stand without unwinding the insulation even when the insulation is already wrapped around the pipe, thereby increasing the efficiency of installation work and the convenience of maintenance without location restrictions.

In particular, since the connection box is installed at a certain height or more above the pipe and insulation material by the leg stand, the heating wire can be safely connected, and maintenance inspection is easy, and it is also easy to replace damaged heating wire after inspection.

Figure 1 is a schematic diagram showing a state in which a connection kit for a heating wire of the present invention is installed on a pipe.
Figure 2 is an exploded perspective view showing the overall configuration of the connection kit for the heating wire of the present invention.
FIG. 3a is a side view of a connection box according to one embodiment of the present invention, and FIG. 3b is a side view of a leg stand.
FIG. 4a is a bottom view showing a state in which the left leg is cut off from the base plate according to one embodiment of the present invention, FIG. 4b is a state in which a clamp is coupled to the base plate from which both the left and right legs are cut off, and FIG. 4c is a bottom view showing a state in which the clamp of FIG. 4b is coupled to the rack.
Figure 5 is a photographic image showing the internal structure of a connection box according to one embodiment of the present invention.

The terminology used herein is only used to describe particular embodiments and is not intended to be limiting of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. As used herein, the terms "comprises" or "has" or "comprising" and the like are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the present specification, but should be understood to not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Unless otherwise defined herein, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or overly formal sense, unless expressly defined otherwise herein.

Hereinafter, the configuration and operational relationship of the present invention will be specifically examined with reference to the attached drawings.

FIG. 1 is a schematic diagram showing a state in which a connection kit for a heating wire of the present invention is installed on a pipe, FIG. 2 is an exploded perspective view showing the overall configuration of a connection kit for a heating wire of the present invention, FIG. 3a is a side view of a connection box according to an embodiment of the present invention, FIG. 3b is a side view of a leg stand, FIG. 4a is a state in which a left leg is cut off from a base plate according to an embodiment of the present invention, FIG. 4b is a state in which a clamp is coupled to a base plate from which both the left and right legs are cut off, and FIG. 4c is a bottom view showing a state in which the clamp of FIG. 4b is coupled to a rack.

Referring to FIGS. 1 to 4c, the connection kit for the heating wire of the present invention will be described as follows.

First, the connection kit (10) for the heating wire of the present invention is a hexahedral body with an open top surface, and is provided with a connection box (100) in which two or more cable attachment holes (101) are formed on the side so that a heating wire or electric wire (C) can be introduced and connected into the body. At this time, a cable gland (G) for fixing the heating wire or electric wire (C) may be further provided in the cable attachment hole (101). (See Fig. 1)

According to one embodiment, the connection box (100) may be manufactured from a non-combustible material such as non-combustible plastic or metal to prevent fire caused by sparks or heat from the heating wire or wire (C).

Additionally, a door (200) is provided on the open upper surface of the connection box (100). According to one embodiment, the door (200) may be a swing door.

In addition, the door (200) is provided with a latch (300) that selectively locks the door so that it does not open while the open top of the connection box (100) is closed. Referring to FIG. 2, according to one embodiment, the latch (300) is rotatably coupled to at least one side of the door (200) as shown in the drawing, and when the door (200) closes the open top of the connection box (100), the latch (300) is rotated downward and then pressed, thereby forcibly fitting and engaging the latch (300) into the protruding top edge (104, see FIG. 2) of the connection box (100).

In addition, a leg stand (400) is provided at the bottom of the connection box (100) to selectively attach/detach the connection box (100) and, when attached, to float the connection box (100) at a predetermined height from the pipe (P) and the insulation material (I) surrounding the pipe. According to one embodiment, the leg stand (400) is configured such that a flat base plate (410) is provided, and legs (legs, 420) of a predetermined height are integrally formed at both ends of one side of the base plate (410), while a fastening means for selectively attaching/detachment to the bottom surface of the connection box (100) is provided at the other side of the base plate (410).

According to one embodiment, the fastening means may be a fastening hook (430) integrally formed on both ends of the other side of the base plate (410); and a fastening groove (102) formed at a position corresponding to the fastening hook (430) on the side of the connection box (100) and hooked or released by selectively engaging the fastening hook (430).

In addition, the end (foot, 421) of the opposite leg (420) of the base plate (410) is bent so as to be parallel to the longitudinal direction of the pipe (P) and a concave curved mounting groove (421a) is formed to correspond to the rounded surface of the pipe (P). Therefore, the leg stand (400) can be stably mounted and supported on the rounded surface on the outside of the pipe (P) by using the curved mounting groove (421a) of the end of the leg (420).

In addition, a support protrusion (150) having an arch-shaped curved mounting groove (150a) formed at the middle portion is further formed on the bottom surface of the connection box (100) so that the connection box (100) can be installed on a flat surface such as a wall or floor with the leg stand (400) separated, or the connection box (100) can be supported by being secured on the rounded surface of the pipe (P). Accordingly, the connection box (100) can be stably secured and supported on the rounded surface on the outside of the pipe (P) by using the curved mounting groove (150a) of the support protrusion (150).

In addition, a support projection fixing hole (411) is further formed in the base plate (410) so that the support projection (150) of the connection box (100) can be fitted and fixed without shaking to the side.

Therefore, when the leg stand (400) is attached to the connection box (100), the support projection (150) is fixed by being inserted into the support projection fixing hole (411), and in this state, the worker can install the connection box (100) at a certain height above the pipe (P) and the insulation (I) by inserting the leg (420) under the insulation (I) of the pipe (P).

In addition, when installing the leg stand (400) on the pipe (P), the leg (420) of the leg stand (400) is inserted under the insulation (I) of the pipe (P), and then silicone is caulked into the gap between the leg stand (400) and the insulation (I), thereby waterproofing the pipe (P) and the insulation (I). As a result, the waterproofing process can prevent the pipe (P) from being deteriorated in terms of insulation or freezing or bursting.

Meanwhile, when the leg stand (400) is separated from the connection box (100), the connection box (100) can be directly installed on a flat or curved surface using the support protrusion (150) instead of the leg stand (400).

In addition, a cutting groove (422) is further formed at the connection portion between the base plate (410) and the leg (420) of the leg stand (400) to selectively detach and separate the leg (420) from the base plate (410).

In addition, on the other side of the base plate (410), screw fastening holes (412) are formed at regular intervals to secure the base plate (410) to a wall or electrical equipment rack (rack, 700) with the legs (420) removed by removing the cut grooves (422).

FIG. 5 is a photographic image showing the internal structure of a connection box according to one embodiment of the present invention.

Meanwhile, referring to FIG. 5, a sawtooth-shaped cable fixing hole (107) may be integrally formed inside the connection box (100) to fix an end of a heating wire or electric wire (C) introduced into the connection box (100) through the cable attachment hole (101).

In addition, by forming a screw-joining groove (108) in the form of an elongated screw hole inside the connection box (100), accessories of various sizes (e.g., terminal blocks, etc.) can be joined to the connection box (100) using the screw-joining groove (108), thereby enabling the configuration of the exemplary embodiment of the present invention to be added, expanded, or modified in a variety of convenient ways.

Hereinafter, the process of separating the above-described cutting groove and installing it in the electrical equipment rack will be examined in more detail with reference to FIG. 4.

First, as shown in Fig. 4a, the worker can hold the leg (420) by hand and bend it to one side, thereby breaking the cutting groove (422) and separating the leg (420) from the base plate (410). That is, in the case of breaking the cutting groove (422) and separating the leg (420) as described above, the connection box (100) may not be installed on the pipe (P) depending on the installation situation at the site, but may be installed on, for example, an electrical equipment rack (rack, 700).

Next, referring to FIG. 4b, a rack installation clamp (600) can be installed by screwing into the screw fastening hole (412) of the base plate (410) from which the leg (420) has been removed. As shown in the drawing, since the screw fastening holes (412) are formed in multiple positions at regular intervals, the worker can use the clamp (600) by fixing it to the screw fastening hole (412) at an appropriate position according to the work environment.

Finally, referring to Fig. 4c, after fixing the clamp (600) as described above, the connection box (100) is installed on the electrical equipment rack (700) by attaching the latch (no sign) of the clamp to the rack (700).

Meanwhile, in the above drawing, the unexplained symbol 103 means a door hinge, and 105 means a latch guide.

Accordingly, the present invention significantly improves the installation workability of the connection box (100) compared to the prior art, so that when the leg stand (400) is attached to the bottom of the connection box (100), the leg (420) of the leg stand (400) is inserted under the insulation (I) of the pipe (P), thereby enabling the connection box (100) to be installed on the pipe (P) and the insulation (I) quickly and easily.

Accordingly, sparks or heat from a heating wire or electric wire (C) that may occur are firstly blocked by the connection box (100), and secondly, since the connection box (100) is spaced apart from the pipe (P) and insulation (I) by a certain height by the leg stand (400), the risk of fire caused by sparks or heat can be further reduced.

In addition, when the leg stand (400) is separated, the connection box (100) can be easily installed on a flat or curved surface using the support protrusion (150), and when the leg (420) is separated by breaking the cut-out (422) of the leg stand (400) and attaching the clamp (600), the connection box (100) can be easily installed on an electrical equipment rack (700), and there is an advantage in that the connection box (100) can be stably and safely installed in various locations without installation restrictions.

In addition, the present invention is not limited to only the above-described embodiment, and the same effect can be created even when the detailed configuration, number, and arrangement structure of the device are changed. Therefore, it is stated that those with ordinary skill in the art can add, delete, and modify various configurations within the scope of the technical idea of the present invention.

10: Connection kit for heating wire (of the present invention)
100 : Connection box 101 : Cable attachment hole
102 : Hanging groove 150 : Supporting protrusion
150a: Curved mounting groove 200: Door
300 : Latch 400 : Leg Stand
410: Base plate 411: Support protrusion fixing hole
412: Screw fastening hole 420: Leg
421: (leg) end (foot) 421a: curved mounting groove
600 : Clamp 700 : Rack

Claims (10)

A connection box having an open hexahedral body with two or more cable attachment holes formed on the side so that a heating wire or electric wire can be introduced and connected into the body;
A door provided on the open upper surface of the above connection box;
A latch that optionally locks the above door so that it cannot be opened while keeping the open top surface of the connection box closed; and
A leg stand is provided, in which legs of a certain height are integrally formed on both ends of one side of a flat base plate, and a fastening means for selectively attaching and detaching to the bottom surface of a connection box is provided on the other side of the base plate;
The leg stand is characterized in that the connecting portion between the leg and the base plate is further provided with a cutting groove for selectively tearing off and separating the leg from the base plate.
Connection kit for hot wire. In paragraph 1,
The bottom surface of the above connection box is characterized in that a support protrusion is further formed with an arch-shaped curved mounting groove formed at the middle portion so that the connection box can be supported while being mounted on a flat surface or a round curved surface of a pipe.
Connection kit for hot wire. delete In paragraph 1,
The above-mentioned means of connection are,
A fastening hook integrally formed on both ends of the other side of the base plate; and
Including a hooking groove formed at a position corresponding to a fastening hook on the side of the above connection box and in which the fastening hook is selectively inserted to be caught or released;
Connection kit for hot wire. In the second paragraph,
The above base plate is characterized in that a fixing hole for a support protrusion is formed so that the support protrusion of the connection box can be fitted and fixed without shaking to the side.
Connection kit for hot wire. In paragraph 1,
The other side of the base plate is characterized in that screw holes are formed at regular intervals to secure the base plate to a wall or rack with the legs removed by removing the cut grooves.
Connection kit for hot wire. In paragraph 1,
The end (foot) of the opposite leg of the above base plate is characterized in that a curved mounting groove is formed so as to correspond to the round surface of the pipe while being bent so as to be parallel to the length direction of the pipe.
Connection kit for hot wire. In paragraph 1,
When installing the above leg stand on a pipe, it is characterized by a waterproof finish by inserting the leg of the leg stand under the pipe insulation and then caulking silicone into the gap between the leg stand and the insulation.
Connection kit for hot wire. In paragraph 1,
The connection box is characterized in that a sawtooth-shaped cable fixing hole is integrally formed inside the connection box to fix the end of a heating wire or electric wire introduced into the connection box through a cable attachment hole.
Connection kit for hot wire. In Article 9,
The inside of the above connection box is characterized by a screw-joining groove formed in a long form with a screw hole so that accessories of various sizes can be combined.
Connection kit for hot wire.

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