KR100809599B1 - Fixing device for cable of terminal box - Google Patents

Abstract

A fixing device for a cable of a terminal box is provided to improve convenience for use and reduce a material cost by not checking a diameter of an inlet of the cable and not requiring an additional connection pipe. A fixing device for a cable of a terminal box includes a main body and corrugated pipe fixing units(110,120). The main body has a ring structure with a hollow inside and supplies insertion units for inserting and fixing corrugated pipes by being connected with a wire inlet. The corrugated pipe fixing units insert and fix the corrugated pipes corresponding to diameter units of the insertion units into the insertion units by preparing the different diameter units on the insertion units by a plurality of extended elastic pieces with different lengths to face a central unit of the main body from any one side end thereof.

Description

FIXING DEVICE FOR CABLE OF TERMINAL BOX}

1 is a perspective view showing a fixture for the wire inlet of the terminal box according to the present invention,

FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1;

3 is a plan view of FIG.

Figure 4 is a perspective view showing a state in which the fixture for the wire inlet of the terminal box according to the present invention is installed in the terminal box,

5 is a perspective view showing a state in which the corrugated pipes of different diameters are installed in FIG.

6 is a cross-sectional view taken along the line II-II of FIG. 5;

7 is an enlarged cross-sectional view showing only a state in which a corrugated tube having a large diameter is installed in FIG. 6;

8 is an enlarged cross-sectional view illustrating only a state in which a corrugated tube having a small diameter is installed in FIG. 7.

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

100: fastener 110, 120: corrugated tube fixing means

200: terminal box body 207: wire inlet

300a, 300b: first and second wrinkle bodies

The present invention provides terminals connected to wires embedded in a wall of a single house, an apartment house or a building, for example, a TV line, an electric line, a telephone line, an Internet dedicated line, an antenna line, etc. (hereinafter, all are referred to as “wires”). It relates to a terminal box that provides a space for, in particular for the wire inlet of the terminal box formed with a wire inlet having a corrugated pipe fixing means that can be secured not to fall out by fixing all corrugated pipes of different diameters to guide the wire in the terminal box It is about a fixture.

In general, the terminal box is to provide a space for installing a terminal for connecting the wires that are embedded in the wall during construction of a single house, apartment house or building.

In the process of embedding the terminal box in the wall as shown above, after installing the reinforcing bar frame to form the wall first, assembled the prepared terminal box to the reinforcing bar frame, the opening of the terminal box is exposed to the room, and then the formwork is installed concrete The terminal box is formed by embedding the wall into which the terminal box is embedded.

As such, the terminal box embedded in the wall is connected to the corrugated pipe to guide the wire into the terminal box and to protect the concrete before concrete is poured. The corrugated pipe should be inserted into the terminal box so as not to fall out. This is because when the corrugated pipe is removed after insertion, the wire may be exposed to concrete and may be corroded by chemical reaction.

For this reason, the corrugated pipe of the terminal box is installed at the wire inlet to which the corrugated pipe is inserted and constitutes a fixture for fixing the corrugated pipe. In the state that the corrugated tube is connected to the telescopic inlet, the male screw on the fixture is screwed into the female thread on the electrical cable inlet, and the product to fix the corrugated tube and the terminal box is commercially available.

However, the fastener of this structure can be supported by fixing only the corrugated pipe of the same standard so as not to fall out. Therefore, to compensate for this, in order to insert and fix a corrugated tube having a different diameter from the fixture into the wire inlet, a separate joint pipe having the same diameter as the corrugated tube must be used by screwing the wire inlet with a fixture and a replacement time. There is a problem that increases and in some cases the material cost increases and there is an inconvenience to check whether the specification of the wire inlet and the corrugated pipe is the same when inserting the corrugated pipe.

Accordingly, an object of the present invention is to solve the above problems, the corrugated tube provided with first and second elastic pieces having different diameters in the insertion hole of the fastener body for fixing the corrugated tube inserted into the terminal box By providing a fixing means to fix the corrugated pipes having different diameters do not fall out irrespective of the diameter, to provide a fastener for the wire inlet of the terminal box to facilitate the use and improve the economics.

The present invention for achieving the above object is buried in a reinforced concrete wall and in the terminal box is provided with a corrugated pipe for guiding the wires to be wired along the wall, the inner ring is an empty ring structure, to be in contact with the wire inlet A fixture body coupled to provide an insert for inserting and fixing the corrugated tube body; And a plurality of different diameter portions provided in the insertion portion by a plurality of elastic pieces extending in different lengths from one end of the fastener main body toward a central portion, so that the corrugated tube body corresponding to the diameter portion in the insertion portion is provided. It characterized in that it comprises a corrugated tube fixing means for inserting and fixing them.

In addition, the elastic pieces are preferably formed to form an inclined surface.

The above objects, advantages and other features will be apparent from the following description with reference to the accompanying drawings.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a wire inlet fixture of a terminal box according to the present invention, Figure 2 is a cross-sectional view shown in the line I-I of Figure 1, Figure 3 is a plan view of Figure 1.

As shown in the drawing, the fastener has a hollow ring structure penetrating up and down, and is provided with a non-slip projection 130 along the outer surface to facilitate the hand to turn the fastener, the insertion of the penetrated structure formed therein From the lower end of the inner circumferential surface of the portion 101 forms a fixture body 100 is provided with a male thread line 150 continuously. In addition, a plurality of protrusions are formed on the inner upper end of the fastener main body 100, and the shape thereof is narrowed toward the top thereof to have a first inclined surface 111 at an end thereof, and the first inclined surface 111 is sharp or angled. The first elastic pieces 110 are integrally formed or have elasticity in the shape of a semicircle. In addition, the second elastic pieces 120 having the second inclined surface 121 having the same shape as the first elastic pieces 110 but longer than the first elastic pieces 110 are formed between the first elastic pieces 110. The protrusions are alternately repeated with the first elastic pieces 110 along the inner circumferential upper end of the fixture body 100. The first and second elastic pieces 110 and 120 as described above are corrugated tube fixing means 110 and 120. The first diameter portion 112 and the second diameter portion 122 which are different from each other are formed inside the insertion portion 101 by the corrugated body fixing means 110 and 120.

Figure 4 is a perspective view showing a state in which the fixture for the wire inlet of the terminal box according to the present invention is installed in the terminal box.

As shown in the drawings, the terminal box is screwed by the wire inlet fixture of the terminal box according to the present invention is a cylinder 201 having a front (open) receiving space (not shown) in which the terminals (not shown) and the cylinder ( Located in the open front of the 201 is a cover frame 203 which is provided to provide a place for installing the cover 205 is made integrally coupled to the reinforcement in a state that only a part of the cover frame 203 is exposed to the outside The terminal box main body 200 is installed to be embedded in the concrete wall.

The cover 205 is formed in a substantially rectangular shape to be detachably installed in the cover frame 203 so that foreign matters do not flow into the accommodation space. In addition, the tube 201 includes a plurality of wire inlets 207 for introducing various wires for connecting to terminals and temporarily closed inlets for opening the inlets as needed. O) is formed to be openable.

In addition, the female thread line 202 is formed on the outer circumference of the wire inlet 207 is coupled to the male thread line 150 provided in the fixture body 100, the fixture body 100 is the terminal box body 200 To be screwed onto.

FIG. 5 is a perspective view illustrating a state in which corrugated tubes having different diameters are installed in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line II-II of FIG. 5.

As shown in the drawing, the wire inlets 207 in the terminal box body 200 are bent with elasticity and form a plurality of corrugations 310 on the outer circumferential surface and also have a space inside the wire inlets 207 It is connected to the inside of the terminal box body 200 is embedded in the reinforced concrete wall through the inner space and to guide the wire in the inner space to protect the wire from corrosion due to chemical reaction with concrete Install a corrugated tube. The corrugated tube may have various corrugated tubes having different diameters according to their use. Therefore, when installing a corrugated pipe body having a different standard from the wire inlet, the corrugated pipe body was installed by separately installing a joint pipe according to the crimped pipe body at the wire inlet. However, the fixture for the wire inlet of the terminal box according to the present invention is the first elastic piece 110 and the second elastic piece 120 and the first diameter portion 112 and the diameter different from each other inside the insertion portion 101, respectively Corrugated pipe bodies having different diameters (for example, 16 mm, 22 mm, 28 mm, etc.) without forming separate joint pipes by forming the second diameter portion 122 (in the present invention, the first corrugated pipe body 300a) And a second wrinkle tube (300b) will be described separately.

7 is an enlarged cross-sectional view illustrating only a state in which a corrugated tube body having a large diameter is installed in FIG. 6.

As shown in the figure, the first elastic pieces 110 of the fastener support the first wrinkle pipe body 300a not to fall out. The first elastic pieces 110 form the first diameter portion 112 corresponding to the diameter of the first wrinkle pipe (300a) and the first wrinkle pipe (300a) to the wire inlet 207 When inserted, the first elastic pipe 110a is pushed in the inclined direction so that the first elastic pipe 110a is inclined with elasticity toward the inside of the terminal box main body 200. This makes it easier to insert 300a. On the other hand, when the inserted first elastic pipe body 300a is pulled out, the first elastic pieces 110 that are pressed have elasticity and are returned to their original state so that the first inclined surface 111 of the end portion thereof has the first wrinkle body ( It does not fall easily because it supports the wrinkles 310 of 300a). In addition, when the first corrugated pipe body 300a is inserted into the wire inlet 207, the second elastic pieces 120 have a tension and are inclined in a direction in which the first corrugated pipe body 300a is inserted into the first corrugated pipe body 300a. Does not interfere with the insertion of one wrinkle tube (300a).

8 is an enlarged cross-sectional view illustrating only a state in which a corrugated tube having a small diameter is installed in FIG. 7.

As shown in the figure, the second elastic pieces 120 support the second wrinkle pipe body 300b which forms a smaller diameter than the first wrinkle pipe body 300a which the first elastic pieces 110 do not support. It is to. The second elastic piece 120 forms a second diameter portion 122 having a smaller diameter than the first elastic piece 110 to support and fix the second corrugated pipe body 300b so as not to fall out. Description of the operation other than the above is the same as the first elastic piece 110, the overlapping content is omitted.

As described above, the present invention has a corrugated tube fixing means consisting of the first elastic pieces and the second elastic pieces having different diameters in the insertion hole of the fastener body installed in the wire inlet of the terminal box is inserted into the wire inlet By constructing to support the corrugated pipes of different diameters regardless of their diameter, to eliminate the inconvenience of having to check the wire inlet diameter of the terminal box, and to eliminate the need for a separate joint pipe to increase the convenience of use and save material It has the effect of improving economics.

Claims (2)

In the terminal box that is embedded in the reinforced concrete wall and the corrugated pipe for guiding the electric wire that is wired along the wall at the wire inlet, A fixture body having an empty ring structure inside and coupled to be in contact with the wire inlet and providing an insert for inserting and fixing the corrugated pipe body; And The plurality of elastic pieces extending in different lengths from one end of the fastener main body toward the center to be provided with different diameter parts in the insertion part to form corrugated tubes corresponding to the diameter part in the insertion part. Fixture for wire inlet of the terminal box comprising a corrugated tube fixing means for inserting and fixing. The inlet fastener of claim 1, wherein the elastic pieces are formed to form an inclined surface.

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