CN209823030U

CN209823030U - Cable butt joint plug assembly

Info

Publication number: CN209823030U
Application number: CN201920910509.8U
Authority: CN
Inventors: 徐利民; 王英鹏; 蔡国勇
Original assignee: Ningbo Xi Chuang Nick Electronic Technology Co Ltd
Current assignee: Ningbo Xi Chuang Nick Electronic Technology Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2019-12-20
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a cable butt joint plug subassembly, public plug and female plug including the cooperation grafting, public plug all includes casing and tail cover with female plug, the rear end of casing is connected with the tail cover, the inner core subassembly is installed in the front end middle part embedding of casing, the inner core subassembly is connected with the power cord, the inner core subassembly is formed by two parts combinations around, wherein the anterior grafting portion that is equipped with the inserted sheet that is divided into, the rear portion is the sinle silk installation department of power cord, the shaping has the sinle silk male inlet that supplies the power cord on the rear end face of sinle silk installation department, be equipped with the pressure line frame corresponding to the position of inlet in the sinle silk installation department, the sinle silk inserts the back and passes through lock screw structure fixed. The utility model has the advantages of simple and reasonable structure, not only can realize quick plug, the locking wire is firm simultaneously, the connection is reliable to waterproof performance is good, and it is also very convenient to maintain.

Description

Cable butt joint plug assembly

Technical Field

The utility model relates to a connector technical field especially relates to a but cable butt plug that quick plug, practicality are strong.

Background

A mating plug is a component used for cable mating, and when the length of a cable is not enough, the mating plug is often needed to connect the cables. The traditional cable butt joint is that two plugs connected with cables are connected together through a butt joint connector, and the mode needs to be additionally provided with the butt joint connector, so that the cost is high, and the problems that the two plugs are easy to loosen and fall off and the like exist after the two plugs are connected are solved. For the convenience of connection, a docking plug also appears, that is, a male and female docking plug is adopted for connection, and then the existing docking plug has the following technical problems: A. the plug connector is easy to fall off and break from the plug socket; B. the product has a complex structure and is difficult to understand and use by users; C. the waterproof property is not good.

According to the examination, the Chinese patent with the prior patent number CN201820154353, namely 'a male-female butting plug for a data line', comprises a female seat and a male seat which is arranged on one side of the female seat and fixedly spliced with the female seat; the female seat comprises a female seat shell body, a female seat wire column and an O-shaped ring, wherein the female seat wire column is arranged in the female seat shell body and fixed with the female seat shell body; the male seat comprises a male seat shell body, a male seat lead post which is arranged in the male seat shell body and fixed with the male seat shell body, and a locking nut which is arranged at one end of the male seat shell body, which corresponds to the female seat shell body; through be provided with female seat shell body on female seat wire post and be provided with public seat shell body on public seat wire post, can effectively protect female seat wire post and public seat wire post, female seat wire post and public seat wire post are locked through lock nut after pegging graft in addition. The butt plug is firm in connection and not easy to fall off, but plugging and unplugging are not fast and convenient enough, and a power line and a plug are connected through a traditional wire column, so that a locking wire is not stable enough.

In addition, like chinese patent "a novel locking formula dock plug" with patent number CN201720208018, including input plug, cutting ferrule, snap ring and output plug, input plug and cutting ferrule are through the first protrusion and the second protrusion that input plug both ends set up and the first breach and the second breach looks lock joint that cutting ferrule one end set up, output plug and cutting ferrule are provided with the protrusion buckle through the sunken of the one end setting at plastic plug edge and cutting ferrule inner wall and are connected. This kind of docking plug passes through cutting ferrule and snap ring and fixes input plug and output plug, cutting ferrule and snap ring threaded connection, and although docking plug is inseparabler, is difficult for droing, but the plug convenient and fast inadequately, waterproof nature is also not ideal enough moreover, and the locking wire is firm inadequately in addition, and it is also not very convenient to maintain.

Disclosure of Invention

The utility model aims to solve the technical problem that to foretell technical current situation and provide a rational in infrastructure, the locking wire is firm, connect reliable cable butt joint plug subassembly.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a cable butt joint plug subassembly, includes the public plug and the female plug that the cooperation was pegged graft, public plug all includes casing and tail cover with female plug, and the rear end of casing is connected with the tail cover, and the inner core subassembly is installed in the front end middle part embedding of casing, and the inner core subassembly is connected its characterized in that with the power cord: the inner core subassembly is formed by two parts combination front and back, wherein the anterior part is equipped with the grafting portion of inserted sheet in, and the rear portion is the sinle silk installation department of power cord, and the shaping has the sinle silk male inlet that supplies the power cord on the rear end face of sinle silk installation department, is equipped with the line ball frame corresponding to the position of inlet in the sinle silk installation department, and the sinle silk is fixed through locking the screw structure after inserting.

As the improvement, the sinle silk installation department is cylindrical for the inner chamber matched with the plug casing, offers the screw mouth that supplies the screw to twist at the lateral surface of cylindrical structure, and the screw twists in the screw mouth and compresses tightly fixedly with the sinle silk.

And the power line is a three-core line, correspondingly, three wire inlets of the inner core assembly and three screw ports are formed.

And the outer peripheral surface of the front part of the inner core assembly is provided with an annular groove, and a waterproof sealing ring is embedded in the annular groove.

Further, the middle part of the upper end face of the shell of the male plug is axially formed with a mounting groove for the key to be placed in and move forward and backward in a limiting manner, the key is of a structure with a hollow lower end and an upper end face inclined upwards at the rear end, a downward extending part is arranged on the front end face of the key, and a locking part matched with the female plug for insertion locking is convexly arranged at the lower end of the extending part forward.

And a spring seat is convexly arranged in the middle of the mounting groove, and a spring which is always popped forward and enables the locking part and the female plug to be locked to realize the locking trend is supported between the inner wall of the extending part of the key and the spring seat.

And furthermore, a rotation mark for locking rightwards and unlocking leftwards is arranged in front of the upper end face of the key, and a stepped sawtooth surface convenient for pushing backwards by a hand is arranged at the rear part of the upper end face of the key.

Furthermore, the front end of the tail sleeve is provided with an internal thread hole corresponding to the external thread connecting section of the shell, the rear end of the tail sleeve is provided with a through hole for the power supply wire to penetrate through, and the shell is fixedly connected with the tail sleeve through threads.

Furthermore, a wire clamp is arranged in the shell and behind the inner core assembly, a connecting part which is matched and connected with the rear end of the inner core assembly is arranged at the front end of the wire clamp, and eight fixed claws are arranged at the rear end of the wire clamp; a waterproof sleeve is arranged between the eight fixed claws of the wire clamp and the inner wall of the tail sleeve, the front part of the waterproof sleeve is inserted into the eight fixed claws, the rear part of the waterproof sleeve extends out of the eight fixed claws to abut against the inner wall of the rear end of the tail sleeve, and an annular groove for the rear end of the eight fixed claws to be clamped into is formed in the periphery of the waterproof sleeve.

And finally, the main body of the section of the wire pressing frame is U-shaped, the outer part of the wire pressing frame is provided with a hole and is sleeved in the end head of the screw to be matched with the end frustum surface of the screw, the inner part of the wire pressing frame extends into the wire inlet to form a wire pressing part, the wire pressing part is an arc surface, and pressing points are distributed on the inner surface.

Compared with the prior art, the utility model has the advantages of: a male plug and a female plug which are mutually inserted and matched are designed, the traditional butting connector is omitted, and the male plug and the female plug are directly butted; the inner core assembly is provided with a wire inlet and a wire pressing frame, and the wire core is fixed through a locking screw structure, so that the wire locking is more stable and the connection is more reliable; during operation, the male plug can be operated only by holding the male plug by a single hand and pushing the key backwards, the male plug can be locked with the female plug by rotating the male plug to the right after being inserted, and the plugging and unplugging are very convenient. The utility model has the advantages of simple and reasonable structure, not only can realize quick plug, the locking wire is firm simultaneously, the connection is reliable to waterproof performance is good, and it is also very convenient to maintain.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of a female plug in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is a schematic structural view of the cable after connection with the inner core assembly;

FIG. 7 is a schematic view of another angle of the cable after connection to the inner core assembly;

FIG. 8 is a cross-sectional view of FIG. 6;

fig. 9 is an exploded view of a male plug according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1-9, a cable butt plug assembly comprises a male plug B and a female plug a which are matched with each other for plugging, wherein the male plug B and the female plug a both comprise a shell 2 and a shell 1 and a tail sleeve 3, the rear ends of the shell 2 and the shell 1 are connected with the tail sleeve 3, inner core assemblies 4 and 8 are embedded in the middle of the front ends of the shell 2 and the shell 1, and the inner core assemblies 4 and 8 are respectively connected with a power line 10. Wherein the up end middle part axial molding of male plug B's casing 2 has the mounting groove 21 that supplies button 7 to put into and spacing activity in front and back, button 7 is the lower extreme fretwork, the structure of rear end tilt up is personally submitted to the up end, the preceding terminal surface of button 7 is equipped with decurrent extension, the lower extreme of extension is protruding to be equipped with the hasp portion 73 of pegging graft locking with female plug A cooperation forward, the protruding spring holder that is equipped with in middle part of mounting groove 21, it has button 7 to pop out forward all the time to support between the inner wall of the extension of button 7 and the spring holder, make hasp portion and female plug A lock position realize the spring 74 of locking trend. A rotation mark 71 which is locked rightwards and unlocked leftwards is arranged at the front part of the upper end surface of the key 7, and a step-shaped sawtooth surface 72 which is convenient for a hand to push backwards is arranged at the rear part of the upper end surface of the key 7; the front end of the shell 1 of the female plug A is provided with a locking position 11 which is matched and locked with the locking part of the key 7. The mating of male plug a with female plug B is similar to a conventional plug and receptacle and will not be described in greater detail herein.

The inner core assembly 4 and the assembly structure of the female plug B will be described in detail below: the inner core components 4 and 8 are formed by combining a front part and a rear part, the front part of the inner core component 4 is provided with a plug part provided with a plug-in sheet, the rear part is provided with a wire core installation part 41 of a power wire 10, the wire core installation part 41 is cylindrical matched with the inner cavity of the shell 2, a wire inlet 411 for inserting a wire core 101 of the power wire 10 is formed on the rear end surface of the wire core installation part 41, the wire inlet 411 is generally connected to the rear part of a metal contact element, the outer side surface of the cylindrical structure is provided with a screw hole 414 for screwing a screw 412, a wire pressing frame 413 is arranged in the wire core installation part 41 corresponding to the wire inlet 411, the wire core 101 is fixed through a screw locking structure after being inserted, the main section of the wire pressing frame 413 is U-shaped, the outer part of the wire pressing frame 413 is provided with a hole and sleeved in the end socket of the screw 412 and matched with the end socket surface of the screw 412, and the, become the line ball part to, the line ball part is the arc surface, and the internal surface distributes and has the pressure point, makes the locking wire more firm, connect more reliably. The power cord 10 of this embodiment is three core wires, and is corresponding, and the inlet 411 of inner core subassembly 4 is three, and screw port 414 is three, for improving waterproof performance, has seted up an annular groove on the anterior outer peripheral face of inner core subassembly 4, has set up waterproof sealing ring 20 in the annular groove. The front end of the tail sleeve 3 is provided with an internal threaded hole corresponding to the external threaded connecting section of the shell 1, the rear end of the tail sleeve 3 is provided with a through hole for the power cord 10 to penetrate through, the shell 1 and the tail sleeve 3 are fixedly connected through threads, a wire clamp 5 is further arranged in the shell 1 and behind the inner core assembly 4, the front end of the wire clamp 5 is provided with a connecting part matched and connected with the rear end of the inner core assembly 4, and the rear end of the wire clamp 5 is provided with eight fixed claws; a waterproof sleeve 6 is arranged between the eight fixed claws of the wire clamp 5 and the inner wall of the tail sleeve 3, the front part of the waterproof sleeve 6 is inserted into the eight fixed claws, the rear part of the waterproof sleeve 6 extends out of the eight fixed claws to be abutted against the inner wall of the rear end of the tail sleeve 3, and an annular groove for clamping the rear end of the eight fixed claws is formed in the periphery of the waterproof sleeve 6.

The locking wire structure of the inner core assembly 8 of the male plug B is consistent with that of the female plug A; the connecting structure of the shell 2 and the tail sleeve 3 of the male plug B is consistent with that of the female plug A.

During assembly, the tail sleeve 3 and the wire clamp 5 penetrate through the power line 10, the power line 10 is connected with the inner core assembly 4, the inner core assembly 4 with the power line 10 locked is inserted into the shell 2 through screw locking and fixing, the inner core assembly 4 and the wire clamp 5 are fixed, and finally the tail sleeve 3 and the rear end of the shell 1 are screwed and fixed.

During butt joint, the key 7 is pushed backwards firstly, so that the locking part moves backwards by overcoming the acting force of the spring, the male plug B is inserted into the female plug A, the male plug B is rotated rightwards, the locking part is aligned with the key position in the female plug A, the key 7 is released, and the key 7 automatically moves forwards under the action of the spring to be locked with the female plug A; when the plug is pulled out, the key 7 is pushed backwards, the key 7 moves backwards, the locking part is separated from the key locking position of the female plug A, and the plug is rotated leftwards, so that the plug can be easily pulled out.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a cable butt joint plug subassembly, includes the public plug and the female plug that the cooperation was pegged graft, public plug all includes casing and tail cover with female plug, and the rear end of casing is connected with the tail cover, and the inner core subassembly is installed in the front end middle part embedding of casing, and the inner core subassembly is connected its characterized in that with the power cord: the inner core subassembly is formed by two parts combination front and back, wherein the anterior part is equipped with the grafting portion of inserted sheet in, and the rear portion is the sinle silk installation department of power cord, and the shaping has the sinle silk male inlet that supplies the power cord on the rear end face of sinle silk installation department, is equipped with the line ball frame corresponding to the position of inlet in the sinle silk installation department, and the sinle silk is fixed through locking the screw structure after inserting.

2. The cable mating plug assembly of claim 1, wherein: the sinle silk installation department is cylindrical with the inner chamber matched with of plug housing, offers the screw mouth that supplies the screw to twist at the lateral surface of cylindrical structure, and the screw twists in the screw mouth and compresses tightly fixedly with the sinle silk.

3. The cable mating plug assembly of claim 2, wherein: the power cord is three core lines, and is corresponding, and the inlet wire of inner core subassembly is three, and the screw mouth is three.

4. The cable mating plug assembly of claim 3, wherein: an annular groove is formed in the outer peripheral face of the front portion of the inner core assembly, and a waterproof sealing ring is embedded in the annular groove.

5. A cable mating plug assembly according to any one of claims 1 to 4, wherein: the male plug is characterized in that a mounting groove for the key to be placed in and to be moved in a front-back limiting mode is axially formed in the middle of the upper end face of the shell of the male plug, the key is of a structure with a hollow lower end and an upper end face inclined upwards at the rear end, a downward extending portion is arranged on the front end face of the key, and a locking portion matched with the female plug in an inserting and locking mode is convexly arranged at the lower end of the extending portion forwards.

6. The cable mating plug assembly of claim 5, wherein: the middle part of the mounting groove is convexly provided with a spring seat, and a spring which is always popped forward and enables the lock catch part and the female plug to be locked to realize the locking trend is supported between the inner wall of the extending part of the key and the spring seat.

7. The cable mating plug assembly of claim 6, wherein: the front part of the upper end face of the key is provided with a rotation mark for locking rightwards and unlocking leftwards, and the rear part of the upper end face of the key is a stepped sawtooth surface convenient for pushing backwards by a hand.

8. A cable mating plug assembly according to any one of claims 1 to 4, wherein: the tail sleeve is characterized in that the front end of the tail sleeve is provided with an internal thread hole corresponding to the external thread connecting section of the shell, the rear end of the tail sleeve is provided with a through hole for the power supply wire to penetrate through, and the shell is fixedly connected with the tail sleeve through threads.

9. The cable mating plug assembly of claim 8, wherein: a wire clamp is further arranged in the shell and behind the inner core assembly, a connecting part which is matched and connected with the rear end of the inner core assembly is arranged at the front end of the wire clamp, and eight fixed claws are arranged at the rear end of the wire clamp; a waterproof sleeve is arranged between the eight fixed claws of the wire clamp and the inner wall of the tail sleeve, the front part of the waterproof sleeve is inserted into the eight fixed claws, the rear part of the waterproof sleeve extends out of the eight fixed claws to abut against the inner wall of the rear end of the tail sleeve, and an annular groove for the rear end of the eight fixed claws to be clamped into is formed in the periphery of the waterproof sleeve.

10. A cable mating plug assembly according to any one of claims 1 to 4, wherein: the pressing line frame section main part is the U-shaped, and the outer part trompil of pressing line frame is put in the end of screw, with the cooperation of the end frustum face of screw, and the inside extension of pressing line frame becomes the line ball part in the inlet wire mouth to, the line ball part is the arc surface, and internal surface distribution has the pressure point.