CN204668183U - Terminal box - Google Patents

Abstract

The utility model relates to a junction box, which comprises a box body and a fixing piece; wherein, the box body is hollow to form an accommodation chamber, the side wall of the box body is provided with a fixing part, the fixing part is located near the opening of the accommodation room, and the first end of the fixing piece Installed on the fixing part, the second end of the fixing piece is provided with a first installation hole. The box body and the fixing piece are separate and independent parts. The fixing piece can be made of a material different from the box body and has higher strength, and the fixing piece can be replaced to prolong the service life of the junction box.

Description

Junction Box

technical field

The utility model belongs to the field of electronic appliances, in particular to a junction box.

Background technique

The current PVC concealed switch box base includes the concealed switch box body, with movable feet, fixed buckle seat, and M4 nut inserts. Under pressure, it is easy to deform, causing the screw not to screw into the M4 nut. And the movable feet are easy to age, and when the interior decoration is installed or the switch panel is changed, it is easy to break when the fixing screws are screwed into the movable feet with too much force. Cause inconvenient use and short life, especially after repeated disassembly and assembly many times, the life will be greatly reduced.

Utility model content

Based on this, the utility model discloses a junction box. The box body and the fixing piece are separate and independent parts. service life.

The specific plan is as follows:

A junction box, comprising a box body and a fixing piece; wherein, the box body is hollow to form an accommodation chamber, the side wall of the box body is provided with a fixing portion, the fixing portion is located near the opening of the accommodation chamber, and the first end of the fixing piece is installed on the fixing portion , the second end of the fixed piece is provided with a first mounting hole.

In one of the embodiments, the first end of the fixing piece is upright relative to the inner wall of the accommodating chamber.

In one of the embodiments, the fixed piece includes a bent portion, the bent portion is located between the first end of the fixed piece and the second end of the fixed piece, and the fixed piece is a flat piece shape, the second end of the fixing piece is flat against the side wall of the box body.

In one of the embodiments, it also includes a cover and a connecting piece, the cover is arranged on the opening of the accommodation chamber, the cover is provided with a second mounting hole, and the connecting piece extends into the first mounting hole. hole and the second mounting hole, and connect the cover body and the box body.

In one of the embodiments, the side wall of the box body is further provided with a wiring hole, and the wiring hole communicates the accommodation chamber with the outside of the box body.

In one of the embodiments, the fixing piece is made of metal.

In one embodiment, the fixing portion is provided with a fixing hole, and the first end of the fixing piece is embedded in the fixing hole.

In one of the embodiments, the fixing hole is a through hole, and the fixing hole communicates the accommodation chamber with the outside of the box body.

In one of the embodiments, the side wall of the box body is provided with a first buckle part, and the first buckle part is arranged in the fixing hole or near the fixing hole, and the second buckle part of the fixing piece The end is provided with a second buckle part, and the first buckle part and the second buckle part are hooked to each other through matching concave-convex structures.

In one of the embodiments, the side wall of the box body is provided with a recessed first buckle part, and the second end of the fixing piece is provided with an elastic piece that is obliquely tilted relative to the second end of the fixing piece, so The elastic piece is embedded in the first buckle part.

The advantages or principles of the above scheme are described below:

1. The junction box, including the box body and the fixing piece; the box body is hollow as a storage room for wiring, the side wall of the box body is provided with a fixing part, the fixing part is located near the opening of the storage room, and the first end of the fixing piece is installed on the In the fixed part, the second end of the fixed piece is provided with a first installation hole, the fixed piece is installed on the side wall of the box body, the first installation hole can be used to install the cover body, the fixed piece and the box body are mutually independent parts, the fixed piece and the box body The box body can use different materials, the box body is made of insulating plastic, and the fixed piece is made of metal material with higher strength, which reduces the cost; and the fixed piece can be replaced after damage, prolonging the service life of the junction box; the fixed piece can be installed on the fixed part Fixing with screws or other nails can also be nested and clamped.

2. The first end of the fixing piece is erected relative to the inner wall of the storage room. Generally, the cover directly covers the opening of the storage room, and the junction box is buried in the wall, and the screw is operated in a direction perpendicular or nearly vertical to the cover. convenient;

The fixed piece also includes a bent part, the bent part is located between the first end of the fixed piece and the second end of the fixed piece, the fixed piece is flat against the side wall of the fitting body, which conforms to the wide and thin structural feature of the side wall of the fitting body, saving The installation space of the fixed piece.

3. The fixing part is provided with a fixing hole, and the first end of the fixing piece is embedded in the fixing hole. The embedded method does not need to use other parts such as screws for fixing. The structure is simple and the installation is convenient.

4. The fixing hole is a through hole. The fixing hole connects the storage chamber with the outside of the box body. The second end of the fixing piece can be operated from the outside. For example, when removing the fixing piece from the box body, tools such as a screwdriver can be used. The second end of the fixed piece is also convenient to observe whether it is installed in place during installation, and is convenient for loading and unloading.

5. The box body is provided with a first buckle part, the first buckle part is set in the fixing hole or near the fixing hole, the second end of the fixed piece is provided with a second buckle part, the first buckle part and the second buckle The buckle parts are interlocked with each other through the matching concave-convex structure, and after the fixing piece is inserted into the fixing hole, since the first buckle part and the second buckle part are interlocked with each other through the matching concave-convex structure, the fixing piece can be prevented from falling off, and further improved.

6. The side wall of the box body is provided with a recessed first buckle part, and the second end of the fixed piece is provided with a shrapnel tilted up relative to the second end of the fixed piece. The shrapnel is embedded in the first buckle part. When the shrapnel When the direction of inclination is opposite to the direction in which the second end of the fixing piece is inserted into the fixing hole, the shrapnel is equivalent to a barb, which is easy to enter and not easy to get out, and makes the connection between the fixing piece and the box body stronger while facilitating installation.

7. The side wall of the box body is also provided with a wiring hole, which connects the storage room with the outside of the box body, and the wiring hole is used to lead the wires into the storage room.

8. The fixed piece is made of metal, which has good metal strength and wear resistance, so that the fixed piece is not easy to be damaged and has a long service life.

Description of drawings

Fig. 1 is the structural diagram of junction box of the utility model embodiment;

Fig. 2 is the structural diagram of box body in the utility model embodiment;

Fig. 3 is the structural diagram of the fixed piece in the utility model embodiment;

Fig. 4 is a cross-sectional view of the junction box of the embodiment of the utility model;

FIG. 5 is an enlarged view of A in FIG. 4 .

Explanation of reference signs:

100, box body, 110, side wall, 111, fixing hole, 112, first buckle part, 120, accommodation chamber, 130, wiring hole, 200, fixing piece, 210, first end, 211, first installation hole , 220, the second end, 221, the shrapnel, 230, the bending part.

Detailed ways

The utility model will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

The junction box includes a box body 100, a fixing piece 200, a cover (not shown in the figure), and a connecting piece.

The box body 100 is hollow to form an accommodation chamber 120. The side wall 110 of the box body 100 is provided with a wiring hole 130. The wiring hole 130 communicates the accommodation chamber 120 with the outside of the box body 100. The wiring hole 130 is used to lead the wires from the box body 110 into the box body. Inside the body 100, the wiring hole 130 may be a knockout hole.

The side wall 110 of the box body 100 is provided with a fixing hole 111 , the fixing hole 111 is located near the opening of the accommodation chamber 120 , the fixing hole 111 is a through hole, and the fixing hole 111 communicates the accommodation chamber 120 with the outside of the box body 100 . The opening of the accommodation chamber 120 faces upward, and the opening side of the accommodation chamber 120 is the top of the box body 100, the first opening of the fixing hole 111 is on the top edge of the side wall 110 of the box body 100, and the second opening of the fixing hole 111 is close to the box body. The side wall 110 of the body 100 .

The second end 220 is embedded in the fixing hole 111 , and the first end 210 of the fixing piece 200 stands upright from the side wall 110 of the box body 100 and extends toward the accommodating chamber 120 . The first end 210 of the fixing piece 200 is provided with a first installation hole 211, the cover body is set on the opening of the accommodation chamber 120, the cover body is provided with a second installation hole, and the connector extends into the first installation hole 211 and the second installation hole, Connect the cover body and the box body 100 .

The fixing piece 200 also includes a bending portion 230, the bending portion 230 is located between the first end 210 of the fixing piece 200 and the second end 220 of the fixing piece 200, the fixing piece 200 is bent at the bending portion 230, and the fixing piece 200 The second end 220 is flat against the outer surface of the side wall 110 of the box body 100 . Bending at the bending portion 230, the second end 220 of the fixing piece 200 is close to the side wall 110 of the box body 100, and the wall surface of the box body 100 is generally thinner. Insufficient wall thickness, the contact position between the fixing piece 200 and the side wall 110 is very narrow and insufficient, and the connection is not firm; and the fixing hole 111 is opened along the plane extending from the side wall 110, so that the fixing piece 200 can be embedded in the fixing hole 111 deeper, more stable.

The side wall 110 of the box body 100 is provided with a recessed first buckle part 112, the first buckle part 112 is arranged in the fixing hole 111 or near the fixing hole 111, and the second end 220 of the fixing piece 200 is provided with a second buckle The second buckle part is an elastic piece 221 that tilts up relative to the second end 220 of the fixing piece 200. The end of the second end 220 of the fixing piece 200 protrudes from the second opening of the fixing hole 111, and the elastic piece 221 is embedded in the second end 220 of the fixing piece 200. A buckle part 112 , the elastic piece 221 locks the first buckle part 112 , and the bent part 230 locks the edge of the side wall 110 , so that the position of the fixing piece 200 in the fixing hole 111 is fixed.

Moreover, due to the elastic effect of the elastic piece 221, the second end 220 of the fixing piece 200 can be pressed against the inner wall of the fixing hole 111 to further fix the fixing piece 200; Insert it into the first opening of the fixed piece 200 until the end of the second end 220 of the fixing piece 200 protrudes out of the second opening of the fixing hole 111, and the elastic piece 221 snaps into the second buckle part, and the elastic piece 221 tilts up to form a barb, forming a The easy-in and hard-out structure prevents the fixing piece 200 from sliding down from the fixing hole 111 .

Since the fixing hole 111 is a through hole, the second end 220 of the fixing piece 200 is provided with a section of the elastic piece 221 which is exposed outside the box body 100. When the fixing piece 200 is disassembled, the elastic piece 221 is tilted from the outside of the box body 100 to make the elastic piece 221 escapes from the first buckle portion 112 , and the second end 220 of the fixing piece 200 is taken out from the fixing hole 111 , so that the fixing piece 200 can be detached.

The fixing piece 200 is made of metal and has high strength. Because the connecting parts often use metal screws, the metal fixing piece 200 interacts with the metal screws, is not easy to be damaged, and can be disassembled repeatedly.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A junction box, characterized in that it comprises a box body and a fixed piece; Wherein, the box body is hollow as a storage room, and the side wall of the box body is provided with a fixing part, and the fixing part is located near the opening of the storage room, the first end of the fixing piece is installed on the fixing part, and the second end of the fixing piece is provided with a first mounting hole. 2 . The junction box according to claim 1 , wherein the first end of the fixing piece is upright relative to the inner wall of the accommodation chamber. 3. The junction box according to claim 2, wherein the fixing piece comprises a bent portion, and the bent portion is located between the first end of the fixing piece and the second end of the fixing piece , the fixing piece is in the shape of a flat sheet, and the second end of the fixing piece is flat against the side wall of the box body. 4. The junction box according to claim 1, further comprising a cover and a connector, the cover covers the opening of the accommodation chamber, the cover is provided with a second mounting hole, the The connecting piece extends into the first mounting hole and the second mounting hole to connect the cover with the box. 5 . The junction box according to claim 1 , wherein the side wall of the box body is further provided with a wiring hole, and the wiring hole communicates the accommodation chamber with the outside of the box body. 6 . 6. The junction box according to claim 1, wherein the fixing piece is made of metal. 7. The junction box according to any one of claims 1 to 6, wherein the fixing portion is provided with a fixing hole, and the first end of the fixing piece is embedded in the fixing hole. 8 . The junction box according to claim 7 , wherein the fixing hole is a through hole, and the fixing hole communicates the accommodating chamber with the outside of the box body. 9. The junction box according to claim 7, wherein the side wall of the box body is provided with a first buckle part, and the first buckle part is arranged in the fixing hole or in the fixing hole Nearby, a second buckle part is provided at the second end of the fixing piece, and the first buckle part and the second buckle part are hooked to each other through matching concave-convex structures. 10. The junction box according to claim 7, characterized in that, the side wall of the box body is provided with a recessed first buckle part, and the second end of the fixing piece is provided with a second end corresponding to the fixing piece. The two ends of the elastic piece are tilted up, and the elastic piece is embedded in the first buckle part.