CN213185392U

CN213185392U - A extend draw bail and terminal box for terminal box

Info

Publication number: CN213185392U
Application number: CN202022005573.7U
Authority: CN
Inventors: 叶昊
Original assignee: Shanghai Kangrui Electric Co ltd
Current assignee: Shanghai Kangrui Electric Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-05-11
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses an expansion connection structure for a junction box and the junction box, which comprises two barrels, wherein the two barrels are fixedly connected together in a left-right side-by-side mode by means of a connecting part, the front ends and the rear ends of the two barrels are respectively horizontally extended forward along the circular ring direction of the periphery of the two barrels to form a plurality of clamping parts, and the inner sides of the clamping parts are provided with limit grooves; the side wall of the box body of the junction box is provided with two connecting holes corresponding to the two cylinders, and the aperture of each connecting hole is slightly smaller than the diameter of the circumference where the clamping part is located; the joint portion of two barrel front ends passes the hookup hole on the lateral wall of the box body of two terminal boxes respectively, the width of spacing groove and the wall thickness phase-match of the box body of terminal box make the joint portion of barrel tip department inserts the box body of terminal box back, the box body card of the terminal box of junction hole department is gone into in the inboard spacing groove of joint portion, is in the same place two terminal boxes fixed connection. The utility model has the advantages of simple structure, it is nimble, convenient to use.

Description

A extend draw bail and terminal box for terminal box

Technical Field

The utility model belongs to the terminal box field specifically is an extend draw bail and terminal box for terminal box.

Background

One way of mounting the panels (switch panel, socket panel) is by means of a cassette, i.e. embedding the junction box in a wall. During construction, a plurality of junction boxes are often buried in a place and are used for installing a plurality of panels which are close to each other. For example, a socket panel is installed beside a switch panel, and a certain gap needs to be reserved between two junction boxes embedded in a wall body at the moment, and the two junction boxes cannot be directly leaned together, so that a proper connecting mechanism is needed between the two junction boxes for facilitating the construction and installation of the junction boxes. In addition, in order to meet the requirement of field installation, a junction box capable of flexibly expanding connection is also needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the drawbacks of the prior art, it is a first object of the present invention to provide an extended coupling structure for a junction box.

A second object of the present invention is to provide a junction box with expandable connection.

The utility model provides a technical scheme that its technical problem adopted is:

an expanded connection structure for a junction box comprises two barrel bodies, wherein the two barrel bodies are fixedly connected together in a left-right side-by-side mode by means of a connecting part, a plurality of clamping parts horizontally extend forwards from the front ends and the rear ends of the two barrel bodies respectively along the circumferential direction of the peripheries of the clamping parts, and limiting grooves are formed in the inner sides of the clamping parts; the side wall of the box body of the junction box is provided with two connecting holes corresponding to the two cylinders, and the aperture of each connecting hole is slightly smaller than the diameter of the circumference where the clamping part is located; the utility model discloses a terminal box, including barrel tip department, barrel front end, connecting portion.

According to a preferred embodiment, the connecting part between the two cylinders is a connecting plate, or a plurality of connecting plates are arranged from the front part of the outer sides of the two cylinders to the rear part of the outer sides of the two cylinders at intervals, wherein two ends of each connecting plate are fixedly connected with the outer walls of the two cylinders respectively.

According to a preferred embodiment, the outer side wall of the clamping portion is chamfered, so that the thickness of the outer side edge of the clamping portion is thinner than that of the inner side edge of the clamping portion, and the outer diameter of the outer side edge of the clamping portion is equal to or slightly smaller than the aperture of the connecting hole in the box body, so that the clamping portion can penetrate through the connecting hole in the box body.

According to a preferred embodiment, the middle parts of the two cylinders are through holes which are communicated from front to back.

The junction box capable of expanding connection comprises at least two box bodies, wherein the two adjacent box bodies are fixedly connected together by means of the expanding connection structure.

Furthermore, a plurality of wiring holes are formed in the box body.

According to a preferred embodiment, the number of the wiring holes provided on each side of the box body is two, and the two wiring holes serve as the coupling holes.

Furthermore, shielding sheets are arranged at the wiring holes, and the outer edges of the shielding sheets are fixed with the inner walls of the wiring holes through a plurality of connection points.

Furthermore, a plurality of first locking pieces are fixedly connected to the inner wall of the upper portion of the box body, and first fixing holes are formed in the middle of the first locking pieces.

Furthermore, the bottom of the box body is fixedly connected with a second locking piece, and a second fixing hole is formed in the middle of the second locking piece.

Compared with the prior art, the beneficial effects of the utility model are that:

1. simple structure, it is nimble, convenient to use, can be in the same place a plurality of box body fixed connection as required.

2. The connecting hole on the side wall of the box body can be directly used as a connecting hole, the middle part of the barrel body of the expanded connecting structure is a through hole which is through from front to back, a cable is allowed to pass through the middle part of the barrel body from one connecting box to enter the other connecting box, and wiring is facilitated.

3. The assembly is simple, and the assembly can be carried out in advance when leaving a factory or can be carried out temporarily when in actual use.

Drawings

Fig. 1 is a schematic axial view of an extended coupling structure for a junction box of an embodiment.

Fig. 2 is a sectional view taken along the line a-a of fig. 1.

Fig. 3 is an embodiment of an expandable coupling junction box.

Fig. 4 is a partial sectional view of the junction between the cartridges in the direction B-B of fig. 3.

Description of the figure numbers:

10. the terminal box comprises a barrel body, a connecting part 11, a clamping part 12, a limiting groove 13, a through hole 14 and a connecting hole 15, wherein the connecting hole is formed in the side wall of the box body of the terminal box.

20. The box body 21, the wiring hole 22, the shielding piece 23, the first locking piece 24, the first fixing hole 25, the second locking piece 26 and the second fixing hole.

30. A coupling mechanism.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1

As shown in fig. 1 and 2, the expanded coupling structure for a junction box of the present embodiment includes two cylinder bodies 10, and the two cylinder bodies 10 are fixedly connected together in a left-right side-by-side manner by a connecting portion 11. The connecting portions 11 may be a plurality of connecting plates, the connecting plates are spaced from the front portions of the outer sides of the two cylinders to the rear portions of the outer sides of the two cylinders, and two ends of each connecting plate are fixedly connected with the outer walls of the two cylinders, preferably integrally connected. As shown, the connecting portion 11 includes two connecting plates. It is easily understood by those skilled in the art that a longer connecting plate may be used as the connecting portion 11, and the connecting plates arranged at intervals are further replaced to fixedly connect the outer walls of the two cylinders 10 together.

The front and rear ends of the two cylinders 10 are horizontally extended with a plurality of clamping parts 12 along the circumferential direction of the outer circumference. The clamping portion 12 is substantially in a shape of a 'hook', and a limiting groove 13 is formed in the inner side of the clamping portion 12.

In this embodiment, a pair of engaging portions 12 is respectively disposed on two side ends of each barrel 10. Fig. 4 shows the connection relationship and the fixed connection between the expansion connection structure and the box body of the junction box. As shown in the figure, two connecting holes 15 corresponding to the end portions of the barrel 10 are formed in the side wall of the box body 20 of the junction box, and the aperture of each connecting hole 15 is slightly smaller than the diameter of the circumference of the clamping portion 12, and is used for being clamped with the end portions of the two barrel 20 extending the connecting structure.

When the pair of clamping parts 12 at the front end of the barrel 10 penetrate into the connecting holes 15 on the side wall of the box body 20 of one junction box, the diameter of the circumference where the clamping parts 12 are located is slightly larger than the aperture of the connecting holes 15, so that the front end of the clamping parts 12 can be properly deformed by being extruded by the connecting holes 15, after the clamping parts 12 penetrate through the connecting holes 15, the clamping parts 12 rebound and restore to the original state, and at the moment, the box body 20 of the junction box at the connecting holes 15 is clamped into the limiting grooves 13 on the inner side of the clamping parts 12. Preferably, the width of the limiting groove 13 is matched with the wall thickness of the box body 20 of the junction box, so that the junction box is not loosened after being connected with the expanded connecting structure. The clamping parts 12 at the two ends of the two cylinders 10 are respectively inserted into the box bodies 20 of the two junction boxes to be clamped and fixed, so that the two junction boxes are fixedly connected together.

Preferably, the outer side wall of the clamping portion 12 is chamfered, so that the thickness D of the outer side edge of the clamping portion 12 is reduced₁Is thinner and has a thickness D at the inner edge₂Is thicker. Thus, the outer side wall of the clamping part 12 is an inclined plane with a smaller front end outer diameter, so that the clamping part 12 can be inserted into the box body connecting hole 15 conveniently; the external diameter of the outside edge of the joint part 12 is equal to or slightly less than the aperture of the connecting hole 15 on the box body 20, and the joint part 12 only needs to be aligned with the connecting hole 15 on the box body 20 and can be pushed in slightly with force to complete the joint.

Preferably, the middle parts of the two barrels 10 are through holes 14 which are through from front to back, and the two junction boxes are fixed together by using the expanded connection structure of the embodiment, so that cables can pass through the middle part of the barrel 10 from one junction box to enter the other junction box.

Example 2

As shown in fig. 3, the junction box with expandable connection of the present embodiment includes two box bodies 20, and the two box bodies 20 are fixedly connected together by a connection mechanism 30. Referring to fig. 4, the coupling mechanism 30 adopts the expanded coupling structure of embodiment 1. It is easy to understand that three or more box bodies 20 can be arranged in the junction box according to the requirement, any two adjacent box bodies 20 can be fixedly connected together through the expanding connection structure, and then the number of the box bodies 20 of the junction box can be expanded to be multiple for installing a plurality of panels.

Furthermore, the box body 20 is provided with a plurality of wiring holes 21. Preferably, the number of the wiring holes 21 formed on each side surface of the box body 20 is two, which corresponds to the number of the cylinders 10 extending the coupling structure, and when in connection, the wiring holes 21 can be directly used as the coupling holes 15.

Still further, all be equipped with the matte 22 in wiring hole 21 department, fix together through a plurality of tie points between the inner wall of wiring hole 21 and the outer fringe of matte 22, when needing to pass through a certain wiring hole 21 threading, the tie point of the outer fringe of matte 22 can be broken off with relatively easily to take off matte 22 in this wiring hole 21 department.

Further, a plurality of first locking pieces 23 are fixedly connected to an inner wall of the upper portion of the box body 20, and a first fixing hole 24, such as a screw hole, is formed in the middle of each first locking piece 23 and used for installing a panel.

Further, a second locking piece 25 is fixedly connected to the bottom of the box body 20, and a second fixing hole 26, such as a screw hole, is formed in the middle of the second locking piece 25 and is used for fixedly connecting a ground wire.

The utility model discloses an extend draw bail and terminal box for terminal box simple structure uses in a flexible way, convenience. The plurality of box bodies 20 can be fixedly connected together as required, and can be assembled in advance when leaving a factory or can be temporarily assembled when in actual use. The assembling process is simple, and the two ends of the extended connecting structure are only required to be aligned with the connecting holes 15 on the side wall of the box body 20 and pushed in, so that the two ends are clamped together to realize fixed connection.

The above embodiments describe the present invention in detail in the extended connection structure for the junction box and the structure of the junction box, but should not be considered as limiting the present invention. It will be readily understood that modifications, substitutions and further improvements may be made by those skilled in the art based on the teachings of the present invention, but any modifications or equivalents will fall within the scope of the claims of the present invention.

Claims

1. An expanded connection structure for a junction box is characterized by comprising two barrel bodies, wherein the two barrel bodies are fixedly connected together in a left-right side-by-side mode by means of a connecting part, a plurality of clamping parts horizontally extend forwards from the front ends and the rear ends of the two barrel bodies respectively along the circumferential direction of the peripheries of the clamping parts, and limiting grooves are formed in the inner sides of the clamping parts; the side wall of the box body of the junction box is provided with two connecting holes corresponding to the two cylinders, and the aperture of each connecting hole is slightly smaller than the diameter of the circumference where the clamping part is located; the utility model discloses a terminal box, including barrel tip department, barrel front end, connecting portion.

2. An expansion coupling structure as claimed in claim 1, wherein the connecting part between the two cylinders is a connecting plate, or a plurality of connecting plates are arranged at intervals from the front part of the outer side of the two cylinders to the rear part of the outer side of the two cylinders, wherein two ends of the connecting plates are fixedly connected with the outer walls of the two cylinders respectively.

3. An expanded connecting structure as claimed in claim 1, wherein the outer side wall of the clamping portion is chamfered to make the thickness of the outer side edge of the clamping portion thinner than that of the inner side edge thereof, and the outer diameter of the outer side edge of the clamping portion is equal to or slightly smaller than the aperture of the connecting hole in the box body, so that the clamping portion can pass through the connecting hole in the box body.

4. An expansion coupling structure as claimed in claim 1, wherein the middle parts of the two cylinders are through holes which are through from front to back.

5. An expansion-joint junction box, which comprises at least two box bodies, wherein two adjacent box bodies are fixedly connected together by the expansion-joint structure of any one of claims 1-4.

6. The junction box of claim 5, wherein the box body defines a plurality of wire holes.

7. The junction box according to claim 6, wherein the number of the wiring holes provided on each side of the box body is two, and the two wiring holes serve as the coupling holes.

8. The junction box of claim 6, wherein a mask is disposed at each of the plurality of connection holes, and an outer edge of the mask is secured to an inner wall of the connection hole by a plurality of connection points.

9. The junction box of claim 5, wherein a plurality of first locking pieces are fixedly connected to an inner wall of the upper portion of the box body, and a first fixing hole is formed in the middle of each first locking piece.

10. The junction box of claim 5, wherein a second locking piece is fixedly connected to the bottom of the box body, and a second fixing hole is formed in the middle of the second locking piece.