CN216133779U

CN216133779U - Reducing box-entering joint

Info

Publication number: CN216133779U
Application number: CN202122932408.0U
Authority: CN
Inventors: 马汉荣; 马少怀; 马少欢
Original assignee: Guangdong Zhongshen Plastic Technology Co ltd; Guangdong Shenlian Industrial Co ltd
Current assignee: Guangdong Zhongshen Plastic Technology Co ltd; Guangdong Shenlian Industrial Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-25
Anticipated expiration: 2031-11-26

Abstract

The utility model relates to a reducing box-entering joint which is detachably arranged on the side part of a box body and comprises a first pipe body, a second pipe body and a third pipe body detachably connected with the second pipe body, wherein the diameter of the first pipe body is smaller than or larger than that of the second pipe body, a plurality of strip-shaped protrusions are arranged on the outer wall of the second pipe body, the strip-shaped protrusions are parallel to the central axis of the second pipe body, one end of the third pipe body is fixedly provided with a tightening piece, when the reducing box-entering joint is connected with the box body, the third pipe body penetrates through a mounting hole arranged on the box body and is connected with the second pipe body, the strip-shaped protrusions and the tightening piece are respectively abutted against the outer wall and the inner wall of the box body, and the joint is convenient to use, reliable in connection stability and low in production cost through mutual matching among all the parts, is suitable for popularization and application.

Description

Reducing box-entering joint

Technical Field

The utility model relates to the technical field of line joint correlation, in particular to a reducing box-entering joint.

Background

The switch box is used behind the switch and socket panel and is a bottom box arranged in the wall body behind the switch and socket panel. At present, the switch box bottom box is formed together with a wall body by adopting a concrete cast-in-place process. In the use process of the switch box, the switch box body is required to be installed in a hole dug in advance in a wall body, and after the electric wire is connected in the switch box body, the installation plate is installed on the switch box body.

However, the thicknesses of the power lines connected into the switch box are usually different, and the existing switch box does not have the function of reducing the diameter, so that the specifications of punching processing on the switch box need to be different in the production of the switch box, and certain limitations exist in the practical use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reducing box-in connector to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a reducing box-entering joint is detachably mounted on the side portion of a box body and comprises a first pipe body, a second pipe body and a third pipe body detachably connected with the second pipe body, wherein the diameter of the first pipe body is smaller than or larger than that of the second pipe body, a plurality of strip-shaped protrusions are arranged on the outer wall of the second pipe body and are parallel to the central axis of the second pipe body, a tightening piece is fixed at one end of the third pipe body, when the reducing box-entering joint is connected with the box body, the third pipe body penetrates through a mounting hole formed in the box body and is connected with the second pipe body, and the strip-shaped protrusions and the tightening piece are respectively abutted against the outer wall and the inner wall of the box body;

when the reducing box-entering joint is connected with the box body, the second pipe body is in threaded connection with the third pipe body, and the inner wall of the second pipe body and the outer wall of the third pipe body are provided with matched threads.

As a further scheme of the utility model: the end part of the first pipe body is provided with a plurality of limiting pieces for clamping and fixing the connecting wire, and the limiting pieces are movably arranged through an elastic telescopic mechanism;

the locating part is circular-arc setting, just elastic telescoping mechanism sets up on the periphery of first body, including installing extending structure on the first body tip and installing the spacing subassembly of elasticity in the first body periphery.

As a still further scheme of the utility model: the telescopic structure comprises a guide plate and a telescopic plate, wherein the guide plate is fixed to the end portion of the first pipe body, the hollow guide plate is arranged in the first pipe body, the telescopic plate is arranged in the guide plate in a sliding mode, the limiting part is fixed to one end of the telescopic plate, and the other end of the telescopic plate is connected with the elastic limiting assembly.

As a still further scheme of the utility model: the elastic limiting assembly comprises a push-pull structure arranged on the side parts of the expansion plate and the guide plate and a rotating structure arranged on the periphery of the first pipe body and matched with the push-pull structure, the rotating structure comprises a lantern ring rotatably arranged on the periphery of the first pipe body, a plurality of protruding parts are arranged on the periphery of the lantern ring at equal intervals along the circumference, and the side edges of the protruding parts are in arc smooth transition and matched with the push-pull structure.

As a still further scheme of the utility model: the push-pull structure comprises a first protruding block and a second protruding block which are respectively fixed on the sides of the telescopic plate and the guide plate, and a push rod which is fixed on the first protruding block and penetrates through the second protruding block, wherein the central axes of the push rod and the first pipe body are vertical;

the ejector rod is connected with the second protruding block in a sliding mode, an elastic piece is arranged between the first protruding block and the second protruding block, and a ball abutted to the protruding portion is arranged at one end, far away from the first protruding block, of the ejector rod.

As a still further scheme of the utility model: the elastic part is established including the cover the extension spring in the ejector pin periphery, the both ends of extension spring respectively with first outstanding piece with the outstanding piece of second is connected, the lantern ring with all be provided with a plurality of screw holes on the first body.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has novel design, when in use, the second pipeline is aligned to the through hole corresponding to the box body, the strip-shaped protrusion is abutted against the outer wall of the box body, then, the third pipe body is connected with the second pipe body through the threads by rotating the screwing piece on the inner side of the box body until the screwing piece and the strip-shaped protrusion are respectively tightly attached to the inner wall and the outer wall of the box body, then, a connecting wire can be penetrated into the first pipe body, and the joint is convenient to use and realizes the diameter-changing function through the mutual matching of all the parts, the hole on the switch box can be conveniently arranged in the box joint, and the connection stability is reliable, the production cost is low, and the utility model is suitable for popularization and use.

Drawings

Fig. 1 is a schematic view of the connection state of the reducing box-entering joint and the box body.

Fig. 2 is a schematic structural view of fig. 1 from another angle.

Fig. 3 is an exploded view of the reducing box joint.

Fig. 4 is an assembly diagram of the elastic telescopic mechanism and the reducing box joint.

Fig. 5 is a schematic structural view of fig. 4 from another angle.

Fig. 6 is an exploded view of the elastic telescopic mechanism.

In the figure: 1-box body; 2-a first tube; 3-a second tube; 4-a third tube; 5-bar-shaped protrusions; 6-a limiting part; 7-a guide plate; 8-a telescopic plate; 9-a first protruding block; 10-a second protruding block; 11-a top rod; 12-a tension spring; 13-a collar; 14-a protrusion; 15-sealing the cover; 16-a screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 6, in an embodiment of the present invention, a reducing box-in connector is detachably mounted on a side portion of a box body 1, and includes a first pipe 2, a second pipe 3, and a third pipe 4 detachably connected to the second pipe 3;

the diameter of the first pipe body 2 is smaller than or larger than that of the second pipe body 3;

a plurality of strip-shaped protrusions 5 are arranged on the outer wall of the second pipe body 3, the strip-shaped protrusions 5 are parallel to the central axis of the second pipe body 3, a fastening piece 16 is fixed at one end of the third pipe body 4, when the reducing box-entering joint is connected with the box body 1, the third pipe body 4 penetrates through a mounting hole formed in the box body 1 and is connected with the second pipe body 3, and the strip-shaped protrusions 5 and the fastening piece 16 are respectively abutted against the outer wall and the inner wall of the box body 1;

when the reducing box joint is connected with the box body 1, the second pipe body 3 is in threaded connection with the third pipe body 4, and the inner wall of the second pipe body 3 and the outer wall of the third pipe body 4 are provided with matched threads.

It should be noted that, when not in use, the through hole on the box body 1 is blocked by the cover 15, so as to prevent foreign matters from entering the box body 1 in daily use, and in addition, the dust is effectively reduced, and the circuit in the box body 1 is protected.

When using, aim at the second pipeline 3 the through-hole that corresponds with it on the box body 1 to make bar protrusion 5 and the outer wall butt of box body 1, afterwards, in the inboard of box body 1, through rotatory piece 16 that revolves, pass through threaded connection with third body 4 and second body 3, until 16 and bar protrusion 5 of revolving closely laminate with the inner wall and the outer wall of box body 1 respectively, afterwards, alright penetrate the connecting wire in first body 2.

In conclusion, through the mutual matching among the parts, the connector is convenient to use, reliable in connection stability and low in production cost, and is suitable for popularization and use.

As another embodiment of the present invention, a plurality of limiting members 6 for clamping and fixing a connection line are disposed at an end of the first pipe body 2, and the limiting members 6 are movably disposed through an elastic telescopic mechanism;

locating part 6 is circular-arc setting, just elastic telescoping mechanism sets up on the periphery of first body 2, including installing extending structure on the 2 tip of first body with install the spacing subassembly of elasticity in the 2 periphery of first body.

The telescopic structure comprises a guide plate 7 fixed to the end of the first pipe body 2 and a telescopic plate 8 arranged in the guide plate 7 in a sliding mode, the limiting part 6 is fixed to one end of the telescopic plate 8, and the other end of the telescopic plate 8 is connected with the elastic limiting assembly.

The elastic limiting assembly comprises a push-pull structure arranged on the side portions of the expansion plate 8 and the guide plate 7 and a rotating structure arranged on the periphery of the first pipe body 2 and matched with the push-pull structure, the rotating structure comprises a lantern ring 13 rotatably arranged on the periphery of the first pipe body 2, a plurality of protruding portions 14 are arranged on the periphery of the lantern ring 13 at equal intervals along the circumference, and the side edges of the protruding portions 14 are in circular arc smooth transition and matched with the push-pull structure.

The push-pull structure comprises a first protruding block 9, a second protruding block 10 and a mandril 11, wherein the first protruding block 9 and the second protruding block 10 are respectively fixed on the side parts of the telescopic plate 8 and the guide plate 7, the mandril 11 is fixed on the first protruding block 9 and penetrates through the second protruding block 10, and the central axes of the mandril 11 and the first pipe body 2 are vertical;

the push rod 11 is connected with the second protruding block 10 in a sliding mode, an elastic piece is arranged between the first protruding block 9 and the second protruding block 10, and a ball abutted to the protruding portion 14 is arranged at one end, far away from the first protruding block 9, of the push rod 11.

The elastic part is established including the cover extension spring 12 on the ejector pin 11 periphery, the both ends of extension spring 12 respectively with first outstanding piece 9 with the outstanding piece 10 of second is connected, lantern ring 13 with all be provided with a plurality of screw holes on the first body 2.

In the embodiment of the utility model, when in use, after the connecting wire is inserted into the first tube 2, the collar 13 is rotated to make the protrusion 14 perform circular motion, so that the balls roll to play a role in reducing friction force, along with the motion of the protrusion 14, and after the balls are separated from the protrusion 14, the tension spring 12 rebounds, so that the expansion plate 8 slides in the guide plate 7, the limiting piece 6 moves towards the connecting wire in the first tube 2 to clamp and fix the connecting wire, and finally, the collar 13 is connected with the first tube 2 through a screw to ensure the locking state of the collar 13;

therefore, when the connector is used, the limiting part 6 stably clamps and fixes the connecting wire, so that the stability of wiring is greatly improved, and the occurrence of line faults is reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The reducing box-in connector is characterized by being detachably mounted on the side part of a box body (1) and comprising a first pipe body (2), a second pipe body (3) and a third pipe body (4) detachably connected with the second pipe body (3);

the diameter of the first pipe body (2) is smaller than or larger than that of the second pipe body (3);

be provided with protruding (5) of a plurality of bars on the outer wall of second body (3), protruding (5) of bar with the central axis of second body (3) is parallel, the one end of third body (4) is fixed with and revolves retaining member (16), works as when the reducing income box-joint is connected with box body (1), third body (4) run through the mounting hole that sets up on box body (1) and with second body (3) are connected, protruding (5) of bar reaches revolve retaining member (16) respectively the butt in on the outer wall of box body (1) and the inner wall.

2. A reducing box joint according to claim 1, wherein when the reducing box joint is connected with the box body (1), the second pipe body (3) is in threaded connection with the third pipe body (4), and the inner wall of the second pipe body (3) and the outer wall of the third pipe body (4) are provided with matching threads.

3. The reducing box-entering joint according to claim 1, wherein a plurality of limiting members (6) for clamping and fixing the connecting line are arranged at the end of the first pipe body (2), and the limiting members (6) are movably arranged through an elastic telescopic mechanism;

the limiting part (6) is arranged in an arc shape, and the elastic telescopic mechanism is arranged on the periphery of the first pipe body (2) and comprises a telescopic structure arranged at the end part of the first pipe body (2) and an elastic limiting assembly arranged on the periphery of the first pipe body (2).

4. A reducing box joint according to claim 3, wherein the telescopic structure comprises a guide plate (7) fixed on the end of the first pipe body (2) and having a hollow interior and a telescopic plate (8) slidably arranged in the guide plate (7), the limiting member (6) is fixed on one end of the telescopic plate (8), and the other end of the telescopic plate (8) is connected with the elastic limiting component.

5. A reducing box joint according to claim 4, wherein the elastic limiting component comprises a push-pull structure mounted on the side of the expansion plate (8) and the guide plate (7) and a rotating structure mounted on the periphery of the first pipe body (2) and matched with the push-pull structure;

the rotating structure comprises a sleeve ring (13) which is rotatably installed on the periphery of the first pipe body (2), a plurality of protruding parts (14) are arranged on the periphery of the sleeve ring (13) at equal intervals along the circumference, and the side edges of the protruding parts (14) are in circular arc smooth transition and are matched with the push-pull structure.

6. A reducing box joint according to claim 5, wherein the push-pull structure comprises a first protruding block (9) and a second protruding block (10) fixed on the sides of the expansion plate (8) and the guide plate (7) respectively, and a top rod (11) fixed on the first protruding block (9) and penetrating through the second protruding block (10), the central axes of the top rod (11) and the first pipe body (2) are vertical;

the ejector rod (11) is connected with the second protruding block (10) in a sliding mode, an elastic piece is arranged between the first protruding block (9) and the second protruding block (10), and a ball abutted to the protruding portion (14) is arranged at one end, far away from the first protruding block (9), of the ejector rod (11).

7. The reducing box-entering joint according to claim 6, wherein the elastic member comprises a tension spring (12) sleeved on the periphery of the top rod (11), and two ends of the tension spring (12) are respectively connected with the first protruding block (9) and the second protruding block (10);

the lantern ring (13) and the first pipe body (2) are provided with a plurality of threaded holes.