CN213845697U

CN213845697U - Universal low-voltage base

Info

Publication number: CN213845697U
Application number: CN202022812652.9U
Authority: CN
Inventors: 冯阿敏; 蔡志国; 陈凌志; 何启飞
Original assignee: Wuhan Huayi Intelligent Equipment Co ltd
Current assignee: Wuhan Huayi Intelligent Equipment Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-30
Anticipated expiration: 2030-11-27

Abstract

The utility model relates to a general type low pressure base, include: a housing having a connection chamber with one end opened; the first connecting and locking piece comprises a binding post, one end of the binding post penetrates through the closed end of the shell in a threaded manner and is fixedly connected with the shell, the other end of the binding post extends into the connecting cavity and is provided with a connecting groove, the connecting groove is provided with an open end and has the same direction as the open end of the connecting cavity, and a locking hole penetrating through the inside and the outside of the connecting groove is formed in the position, close to the bottom surface of the connecting groove, of the binding post; and the second connection locking piece is arranged on the outer wall of the shell and used for locking the connector plug on the shell after the first connection locking piece locks the connector plug. This general type base homoenergetic can dock with hand lock and self-locking connector, has solved the restriction that a base can only dock a connector in the past, improves the commonality of base.

Description

Universal low-voltage base

Technical Field

The utility model relates to a cable fortune dimension technical field especially relates to a general type low pressure base.

Background

Various low-voltage equipment can be used in actual low-voltage operation maintenance or rush-repair, the equipment needs low-voltage cables and low-voltage connectors to quickly connect rush-repair lines and equipment, the connectors installed on the low-voltage cables equipped by various power supply companies are generally only connectors in one form, or are quick connectors locked by hands, or are quick connectors locked by self, because the current use amount of the two connectors is large, two different low-voltage connectors can frequently appear on the low-voltage cables purchased by different batches of the power supply companies, however, the low-voltage equipment is only provided with the low-voltage base in the same form matched with the low-voltage equipment, troubles are brought to the operation, the low-voltage base installed on the low-voltage cables is not uniform in form, the butt joint is not performed, and inconvenience is brought to the operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a universal low-voltage base to improve the application range of the conventional low-voltage base.

The utility model provides a general type low pressure base, include:

a housing having a connection chamber with one end opened;

the first connecting and locking piece comprises a binding post, one end of the binding post penetrates through the closed end of the shell and is fixedly connected with the threads of the shell, the other end of the binding post extends into the connecting cavity and is provided with a connecting groove, the connecting groove is provided with an open end and has the same direction as the open end of the connecting cavity, and a locking hole penetrating through the inside and the outside of the connecting groove is formed in the position, close to the bottom surface of the connecting groove, of the binding post;

and the second connection locking piece is arranged on the outer wall of the shell and used for locking the connector plug on the shell after the first connection locking piece locks the connector plug.

Furthermore, the locking holes are arranged in a plurality and are evenly distributed along the circumferential direction of the connecting groove.

Furthermore, the binding post comprises a contact finger spring arranged on the inner wall of the connecting groove and used for abutting against a connector plug inserted into the connecting groove.

Furthermore, the binding post is provided with a locking groove on the inner wall of the opening end of the connecting groove.

Optionally, the inner wall of the binding post is provided with an internal thread, the connector plug is provided with an external thread, and the connector plug is screwed into the connecting groove through threaded connection.

Furthermore, the first connecting and locking piece further comprises a sealing cap wrapping the peripheral wall of the outer end of the opening of the connecting groove of the wiring terminal.

Furthermore, the first connecting and locking piece also comprises a spring post which is elastically connected and connected with the bottom surface of the connecting groove.

Specifically, the second connecting and locking piece comprises a locking steel ball, a sliding sleeve elastically connected to the inner wall of the connecting cavity and a limiting sleeve elastically connected to the outer wall of the connecting cavity;

a clamping groove which penetrates through the inside and the outside of the connecting cavity is formed in the shell close to the opening end of the shell, the locking steel ball is clamped in the clamping groove, the width of one end, located in the connecting cavity, of the clamping groove is smaller than the diameter of the locking steel ball, the width of one end, located outside the connecting cavity, of the clamping groove is larger than the diameter of the locking steel ball, and the diameter of the locking steel ball is larger than the radial thickness of the clamping groove in the connecting cavity;

the sliding sleeve is abutted to the inner wall of the connecting cavity to slide, the limiting sleeve is abutted to the outer wall of the connecting cavity to slide, the limiting sleeve is provided with a limiting groove which enables the locking steel ball to slide to the abutting part along the length direction of the clamping groove, and the limiting groove can generate acting force for abutting and pressing the steel ball in the connecting cavity.

Has the advantages that:

the utility model provides a general low-voltage base, through setting up first connection locking piece, can be when external connector plug gets into the connection cavity of base, lead electrical pillar and terminal grafting in the plug to realize connecting and get the electricity, and the elasticity bolt or the elasticity steel ball of plug can insert and lock in the locking hole for the first time; the connector plug can then continue to be locked to the housing after the first connection locking member locks the connector plug. This general type base homoenergetic can dock with hand lock and self-locking connector, has solved the restriction that a base can only dock a connector in the past, improves the commonality of base.

Drawings

Fig. 1 is an overall structure schematic diagram of a universal low-voltage base provided by an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a first connecting locking member according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an alternative first connecting locking member according to an embodiment of the present invention.

Fig. 5 is a schematic view of a connection structure between the second connecting locking member and the housing according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of the connector plug connected to the universal low-voltage base according to an embodiment of the present invention.

1 shell, 10 connecting cavities, 11 flanges, 12 connecting sleeves, 13 insulating sleeves, 14 first springs, 15 second springs, 16 dust covers,

2 first connection locking piece, 20 binding post, 200 connection groove, 201 locking hole, 202 finger spring, 203 locking groove, 21 sealing cap, 22 spring post,

3 second connection locking piece, 30 locking steel ball, 31 sliding sleeve, 32 limiting sleeve, 320 limiting groove and 4 connector plug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An embodiment of the present invention provides a general low-voltage base, as shown in fig. 1-6, including:

the shell 1 is provided with an opening at one end and a closed end at the other end, and a connecting cavity 10 is formed from the opening end to the closed end;

the first connecting and locking piece 2 comprises a connecting post 20, one end of the connecting post 20 penetrates through the closed end of the shell 1 and is fixedly connected with the shell 1 in a threaded manner, the other end of the connecting post 20 extends into the connecting cavity 10 and is provided with a connecting groove 200, the connecting groove 200 is provided with an open end and is consistent with the direction of the open end of the connecting cavity 10, and a locking hole 201 penetrating through the inside and the outside of the connecting groove 20 is formed in the position, close to the bottom surface of the connecting groove 200, of the connecting post 20;

and a second connection locking member 3 provided on an outer wall of the housing 1 for locking the connector plug to the housing 1 after the first connection locking member 2 locks the connector plug.

The utility model provides a general low-voltage base, through setting up first connection locking piece, can be when external connector plug 4 gets into the connection chamber 10 of base, the interior conductive pillar of plug pegs graft with terminal 20 to realize connecting and get the electricity, and the elasticity bolt or the elasticity steel ball of plug 3 can insert and lock in the locking hole and carry out the locking for the first time; the connector plug 4 can then be continuously locked to the housing 1 after the first connection lock 2 locks the connector plug 4. This general type base homoenergetic can dock with hand lock and self-locking connector, has solved the restriction that a base can only dock a connector in the past, improves the commonality of base.

Further, the locking holes 201 are provided in plural and evenly distributed along the circumferential direction of the connecting groove 200, so that the locking of the first connecting-locking member 2 is more secure. Specifically, the binding post 20 is a round bar structure made of copper, one end of which is hollow to form a connecting groove 200, and the other end of which has a smaller outer diameter and is provided with an external thread for fixedly connecting with the thread of the housing 1.

Specifically, as shown in fig. 1 and 3, the binding post 20 includes a finger spring 202 disposed on an inner wall of the connecting slot 200 for pressing against the connector plug 4 inserted into the connecting slot 200, so as to obtain more reliable power.

Furthermore, the terminal post 20 is provided with a locking groove 203 at the inner wall of the opening end of the connecting groove 200, so that the locking of the connector plug 4 is firmer.

Optionally, as shown in fig. 4, an inner wall of the binding post 20 is provided with an inner thread, the connector plug 4 is provided with an outer thread, and the connector plug 4 is screwed into the connecting groove 200 through a threaded connection to achieve power taking.

Furthermore, the first connecting and locking member 2 further comprises a sealing cap 21 wrapped on the outer peripheral wall of the opening end of the connecting groove 200 at the terminal 20, the sealing cap 20 is a circular tube structure made of plastic and is buckled at the front end of the terminal 20, and the front end of the terminal is insulated to prevent accidental electric shock.

Further, the first coupling and locking member 2 further includes a spring post 22 elastically coupled to the bottom surface of the coupling groove 200. When connector plug 4 inserts to the spread groove 200 in, not only can get the electricity through the spread groove 200 inner wall, can also be supported by spring post 22 elasticity and press, prevent that connector plug 4 from radially rocking in spread groove 200 for it is more firm to get the electricity.

Specifically, as shown in fig. 1 and 5, the second connecting and locking member 3 includes a locking steel ball 30, a sliding sleeve 31 elastically connected to the inner wall of the connecting cavity 10, and a position-limiting sleeve 32 elastically connected to the outer wall of the connecting cavity 10;

a clamping groove 120 which penetrates through the inside and the outside of the connecting cavity 10 is formed in the shell 1 close to the opening end of the shell, the locking steel ball 30 is clamped in the clamping groove 120, the width of one end, located in the connecting cavity 10, of the clamping groove 120 is smaller than the diameter of the locking steel ball 30, the width of one end, located outside the connecting cavity 10, of the clamping groove 120 is larger than the diameter of the locking steel ball 30, and the diameter of the locking steel ball 30 is larger than the radial thickness of the clamping groove 120 in the connecting cavity 10;

as shown in fig. 2 and 6, the sliding sleeve 31 abuts against the inner wall of the connection cavity 10 to slide, the position-limiting sleeve 32 abuts against the outer wall of the connection cavity 10 to slide, the position-limiting sleeve 32 has a position-limiting groove 320 for allowing the locking steel ball 30 to slide along the length direction of the locking slot 120 to abut against, and the position-limiting groove 320 can generate an acting force for abutting the locking steel ball 30 into the connection cavity 10.

When the self-locking connector plug enters the connecting cavity 10 of the base, a conductive column in the connector plug 4 is inserted into or spirally connected with the binding post 20 to take electricity, the front end of the connector plug 4 can push the sliding sleeve 31 to move towards the bottom surface of the connecting cavity 10 until the sliding sleeve is not abutted against the locking steel ball 30, and the locking steel ball 30 falls into a groove on the outer surface of the shell at the front end of the connector plug 4 under the radial action generated by the limiting groove 320 of the limiting sleeve 32 to lock the connector plug 4; when the connector plug 4 is pulled out, the locking steel balls 30 can be extruded into the connecting cavity 10 to move radially into the limiting groove 320 and move out of the groove of the shell at the front end of the connector plug 4, and unlocking is completed.

Specifically, as shown in fig. 1 and 6, the housing 1 includes a flange 11, a connecting sleeve 12, an insulating sleeve 13, a first spring 14, and a second spring 15, which are integrally assembled together. The flange 11 is shaped like a disc. The connecting sleeve 12 is a circular tube structure made of aluminum alloy, 8 holes for fixing steel balls are formed in the side wall of the connecting sleeve, and steps 120 for limiting the sliding sleeve 31 and the limiting sleeve 32 are arranged on the inner side surface and the outer side surface of the connecting sleeve and used for fixing the first spring 14, the second spring 15, the sliding sleeve 31 and the limiting sleeve 32. The insulating sleeve 13 is made of plastic material, and is used for forming a closed end of the connecting cavity 10, fixing the connecting terminal 20 and playing an insulating role.

As shown in fig. 2 and 6, the position-limiting sleeve 32 is an aluminum alloy circular tube with a smaller inner diameter at one end and a larger inner diameter at the other end, and is elastically connected to the step 120 outside the connecting cavity 10 through the first spring 14, and a position-limiting groove 320 for accommodating the locking steel ball 30 is formed in the inner wall of the end with the smaller inner diameter. The limiting grooves 320 correspond to the locking steel balls 30 in number and position one by one. The width of the limiting groove 320 along the radial direction of the limiting sleeve 32 meets the requirement that the locking steel ball 30 moves to be flush with the inner wall of the connecting cavity 10. And the length of the limiting groove 320 along the length direction of the limiting sleeve 32 meets the following requirements: when the position-limiting sleeve 32 is elastically stretched in a natural state by the first spring 14, one end wall of the position-limiting groove 320 abuts against the locking steel ball 30, and when the position-limiting sleeve 32 slides to compress the first spring 14 to the limit, the position-limiting groove 320 is separated from the locking steel ball 30, and a gap is formed between the position-limiting groove 320 and the connecting sleeve 12, so that the locking steel ball 30 is limited in the gap, and the locking steel ball 30 is prevented from completely sliding out of the clamping groove 120 and falling off.

Further, as shown in fig. 1, the housing 1 further includes a dust cover 16 covering the open end of the connection cavity 10, and the dust cover plays a role of dust prevention when the base is not in use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A universal low-voltage base, comprising:

a housing having a connection chamber with one end opened;

2. The universal low pressure base according to claim 1, wherein said locking holes are provided in plurality and evenly distributed circumferentially along said connecting slots.

3. The universal low voltage base according to claim 1, wherein said terminal comprises a finger spring disposed on an inner wall of said connecting groove for pressing against a connector plug inserted into said connecting groove.

4. The universal low-voltage base as claimed in claim 3, wherein the terminal post is provided with a locking groove on an inner wall of the opening end of the connecting groove.

5. The universal low voltage base as claimed in claim 1, wherein said inner wall of said binding post is provided with an internal thread, and said connector plug is provided with an external thread, and said connector plug is screwed into said connecting groove by means of a threaded connection.

6. The universal low voltage base according to claim 1, wherein said first connecting locking member further comprises a sealing cap covering an outer peripheral wall of said terminal at an end of said opening of said connecting groove.

7. Universal low pressure foot according to any of claims 1-6, characterised in that the first coupling lock further comprises a spring stud resiliently coupled to the bottom surface of the coupling groove.

8. The universal low-pressure base according to any one of claims 1 to 6, wherein the second connecting and locking piece comprises a locking steel ball, a sliding sleeve elastically connected to the inner wall of the connecting cavity, and a limiting sleeve elastically connected to the outer wall of the connecting cavity;