CN108616012B

CN108616012B - Grounding pin assembly

Info

Publication number: CN108616012B
Application number: CN201810569122.0A
Authority: CN
Inventors: 陈钦文; 王岗; 刘小平; 程东衡
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2018-06-05
Filing date: 2018-06-05
Publication date: 2024-04-09
Anticipated expiration: 2038-06-05
Also published as: CN108616012A

Abstract

The invention provides a grounding pin assembly, which comprises a locking assembly with a grounding pin and a grounding wire head capable of being locked with or separated from the locking assembly, wherein the locking assembly further comprises: the shell is provided with a locking space for locking the grounding wire end, and the grounding needle is fixed on the shell; the locking pin is arranged in the shell in a sliding manner and extends out towards the locking space; the lock core is arranged in the shell and is in driving connection with the locking pin, so that the locking pin can be switched from a locking position for locking the ground wire head to an unlocking position for avoiding the ground wire head, and when the ground wire head is locked at the locking position, the ground wire head is electrically connected with the ground pin through the locking assembly. The invention solves the problem of poor reliability of the grounding pin lockset in the prior art.

Description

Grounding pin assembly

Technical Field

The invention relates to the technical field of locks, in particular to a grounding pin assembly.

Background

Currently, some electrical devices are usually connected to a grounding pin through a ground wire to ground the electrical device during operation or maintenance, and a grounding pin lock is mainly used for protecting the connection of the ground wire to ensure the reliability of grounding.

The grounding pin commonly used in the market at present is basically provided with no lockset or a common padlock, but the device has the following defects:

1. the operation is complicated, and the grounding wire and the ground wire are required to be hung and detached each time of use;

2. the grounding needle can be directly operated by non-instruction personnel, so that safety accidents are easy to cause;

3. the operator is instructed to forget to hang the ground wire and detach the ground wire for a certain time.

The defects cause the safety and reliability of the current grounding pin lockset to be lower, so that instruction personnel can operate the grounding pin lockset by mistake easily, and safety accidents are caused.

Disclosure of Invention

The invention mainly aims to provide a grounding pin assembly, which is used for solving the problem of poor reliability of a grounding pin lock in the prior art.

In order to achieve the above object, the present invention provides a ground pin assembly including a locking assembly having a ground pin and a ground wire head lockable or detachable from the locking assembly, wherein the locking assembly further includes: the shell is provided with a locking space for locking the grounding wire end, and the grounding needle is fixed on the shell; the locking pin is arranged in the shell in a sliding manner and extends out towards the locking space; the lock core is arranged in the shell and is in driving connection with the locking pin, so that the locking pin can be switched from a locking position for locking the ground wire head to an unlocking position for avoiding the ground wire head, and when the ground wire head is locked at the locking position, the ground wire head is electrically connected with the ground pin through the locking assembly.

Further, the locking assembly further comprises a locking pin slidably arranged in the shell, and the lock cylinder is clamped or separated from the locking pin through the locking pin.

Further, the locking pin has a locking groove, and an end of the locking pin can be engaged with or disengaged from the locking groove.

Further, the locking assembly further comprises a limiting pin arranged in the shell in a sliding mode, when the grounding pin assembly is in a locking state, the limiting pin is out of the moving path of the locking pin, and the end portion of the locking pin is clamped into the locking groove, so that the locking pin locks the grounding wire end.

Further, the locking assembly further comprises a limiting pin arranged in the shell in a sliding mode, when the grounding pin assembly is in an unlocking state, the limiting pin can prevent the locking pin from moving, when the grounding pin is inserted into or pulled out of the locking space, the limiting pin is pressed by the locking pin, the limiting pin is retracted to release the stop of the locking pin, the end portion of the locking pin can be clamped into the locking groove, when the grounding pin is inserted into or pulled out of the locking space, the locking pin is clamped into the locking groove, and the limiting pin is abutted to the side wall of the locking pin.

Further, the locking pin has a protruding portion capable of pressing the stopper pin when the locking pin is switched from the locking position to the unlocking position.

Further, the locking assembly further comprises a limiting pin resetting piece, wherein the limiting pin resetting piece is in abutting connection with the limiting pin and provides resetting force for the limiting pin to move to one side of the locking pin.

Further, the locking pin has a stepped structure that mates with the stopper pin.

Further, the locking assembly further comprises a locking pin resetting piece, and two ends of the locking pin resetting piece are respectively abutted against the shell and the locking pin so as to provide resetting force for the locking pin to move to one side of the locking pin; the locking pin is provided with an unlocking groove, the lock cylinder is provided with an unlocking convex block which stretches into the unlocking groove, and when the lock cylinder is unlocked, the unlocking convex block overcomes the resetting force of the locking pin resetting piece and presses the side wall of the unlocking groove so as to enable the locking pin to be separated from the locking pin.

Further, the unlocking lug is a semicircular lug.

Further, the latch assembly also includes a latch pin return member that abuts the latch pin and provides a return force to the latch pin for movement to the lock space.

Further, the locking assembly further comprises an auxiliary locking pin which is arranged in the shell in a sliding manner and extends out towards the locking space, and the auxiliary locking pin and the locking pin are arranged at intervals along the circumferential direction of the ground wire head.

Further, one end of the ground wire head extending into the locking space is provided with a locking groove, and the locking pin can be clamped in the locking groove to lock the ground wire head.

Further, the ground pin assembly further comprises: the magnetic piece is arranged at one end of the ground wire head, which is close to the locking groove; the induction piece is arranged on the lock cylinder and can induce the position relation with the magnetic piece so as to judge the locking or unlocking of the ground wire head; the identity chip is arranged on the lock cylinder and forms a wireless code chip with the sensing piece to identify the unlocking key.

Further, the ground pin assembly also includes a lock nut by which the ground wire head is held in contact with the housing to electrically connect the ground wire head with the ground pin.

By applying the technical scheme of the invention, the shell of the locking assembly is fixedly connected with the grounding pin, and when the ground wire head connected with the ground wire is inserted into the locking space of the locking assembly, the locking pin can lock the ground wire head, so that the ground wire head is kept connected with the locking assembly, thus, the reliable connection between the ground wire head and the locking assembly is realized, and the reliable connection between the ground wire and the grounding pin is also realized. When the lock is required to be unlocked, the lock cylinder is rotated by the unlocking key, and the lock cylinder drives the locking pin to act so that the locking pin avoids the ground wire head, and the ground wire head can be pulled out of the locking space, so that the ground wire head is separated from the locking assembly. The arrangement mode enables the grounding pin and the locking assembly to be integrated, avoids inconvenient use caused by additional padlock arrangement, and ensures the reliability and convenience of connection between the ground wire and the grounding station through locking between the ground wire head and the locking assembly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic view of the structure of the grounding pin assembly of the present invention;

FIG. 2 shows a schematic view of the ground wire head and latch assembly of the ground pin assembly of FIG. 1;

FIG. 3 shows a top cross-sectional view of the ground wire head and latch assembly of FIG. 2;

FIG. 4 shows a schematic view of the latching pin of the latching assembly of FIG. 3 in a latched position;

FIG. 5 shows a schematic view of the latch pin and stop pin of the latch assembly of FIG. 3 disengaged;

FIG. 6 shows a schematic view of the latch pin of the latch assembly of FIG. 3 in an unlatched position;

FIG. 7 shows a schematic structural view of a lock cylinder of the latch assembly of FIG. 2; and

fig. 8 shows a schematic structural view of the ground wire head of fig. 2.

Wherein the above figures include the following reference numerals:

10. a latch assembly; 11. a grounding pin; 12. a housing; 13. locking pin; 131. a boss; 14. a lock core; 141. unlocking the protruding block; 15. a locking pin; 151. unlocking grooves; 16. a limiting pin; 17. a limiting pin resetting piece; 18. a locking pin resetting member; 19. an auxiliary locking pin; 110. a latch pin reset member; 20. a ground wire head; 21. a locking groove; 22. a connection structure; 30. a magnetic member; 40. an induction member; 50. an identity chip; 60. and (5) locking the nut.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

The invention provides a grounding pin assembly, which aims to solve the problem of poor reliability of a grounding pin lock in the prior art.

Example 1

A grounding pin assembly as shown in fig. 1 to 3, comprising a locking assembly 10 having a grounding pin 11 and a ground pin 20 capable of being locked to or separated from the locking assembly 10, wherein the locking assembly 10 further comprises a housing 12, a locking pin 13 and a lock cylinder 14, the housing 12 having a locking space for locking the ground pin 20, the grounding pin 11 being fixed to the housing 12; the locking pin 13 is slidably arranged in the housing 12 and protrudes toward the inside of the locking space; the lock cylinder 14 is disposed in the housing 12 and is in driving connection with the locking pin 13 such that the locking pin 13 can be switched from a locking position for locking the ground wire head 20 to an unlocking position for avoiding the ground wire head 20, and the ground wire head 20 is electrically connected with the ground pin 11 through the locking assembly 10 when the ground wire head 20 is locked in the locking position.

In the present embodiment, the housing 12 of the locking assembly 10 is fixedly connected with the grounding pin 11, and the locking pin 13 can lock the grounding pin 20 when the grounding pin 20 connected with the ground wire is inserted into the locking space of the locking assembly 10, so that the grounding pin 20 maintains the connection with the locking assembly 10, thus achieving reliable connection between the grounding pin 20 and the locking assembly 10, and also achieving reliable connection between the ground wire and the grounding pin 11. When unlocking is needed, the lock cylinder 14 is turned by the unlocking key, the lock cylinder 14 drives the locking pin 13 to act, so that the locking pin 13 avoids the ground wire head 20, the ground wire head 20 can be pulled out of the locking space, and the ground wire head 20 is separated from the locking assembly 10. The above arrangement forms the grounding pin 11 and the locking assembly 10 into a whole, avoids the inconvenience of using caused by additionally arranging a padlock, and ensures the reliability and convenience of the connection between the ground wire and the grounding pin 11 through the locking between the ground wire head 20 and the locking assembly 10.

Alternatively, the housing 12 and the grounding pin 11 may be connected by welding or bolting, or may be provided as an integrally formed structure.

In the present embodiment, the latch assembly 10 further includes a locking pin 15 slidably disposed within the housing 12, and the lock cylinder 14 is capable of locking the latch pin 13 or unlocking the latch pin 13 by the locking pin 15.

Specifically, the locking pin 13 and the locking pin 15 are locked in a clamping manner, a locking groove is formed in the locking pin 13, one end of the locking pin 15 can extend into the locking groove of the locking pin 13 to be clamped with or separated from the locking groove, in this way, the moving path of the locking pin 15 is mutually perpendicular to the moving path of the locking pin 13, when the locking pin 15 is clamped in the locking pin 13, the lock cylinder 14 can drive the locking pin 15 to move in a direction away from the locking pin 13 during unlocking, so that the locking pin 15 is separated from the locking pin 13, then a person is instructed to pull out the ground wire head 20 outwards, the ground wire head 20 presses the locking pin 13 to enable the locking pin 13 to be switched from the locking position to the unlocking position, and the ground wire head 20 can be separated from the locking assembly 10 after the ground wire head 20 is continuously pulled out.

In this embodiment, the locking assembly 10 further includes a limiting pin 16 slidably disposed in the housing 12, and when the ground pin assembly is in the locked state, the limiting pin 16 exits the movement path of the locking pin 15, and the end of the locking pin 15 is snapped into the locking groove, so that the locking pin 13 locks the ground wire head 20, as shown in fig. 4. When the ground pin assembly is in the unlocked state, the limit pin 16 can block movement of the locking pin 15, as shown in fig. 5; when the ground wire head 20 is inserted into or pulled out of the locking space, the locking pin 13 presses the limit pin 16, the limit pin 16 is retracted to release the stop of the locking pin 15, and the end of the locking pin 15 can be snapped into the locking groove as shown in fig. 6; when the ground wire head 20 is inserted into or pulled out of the locking space, the locking pin 15 is clamped into the locking groove, and the limiting pin 16 abuts against the side wall of the locking pin 15.

As shown in fig. 3, the latch assembly 10 further includes a stopper pin 16 slidably disposed within the housing 12, the stopper end of the stopper pin 16 moving into the movement path of the stopper pin 15 to prevent the movement of the stopper pin 15 when the stopper pin 15 is disengaged from the latch pin 13 and the latch pin 13 is in the locked position.

Specifically, the movement path of the limiting pin 16 is also perpendicular to the movement path of the locking pin 15, that is, the axes of the limiting pin 16 and the locking pin 13 are parallel, when the locking pin 15 is driven by the lock cylinder 14 to separate from the locking pin 13, the stop end of the limiting pin 16, which is close to the locking pin 15, can move in a direction close to the locking pin 15 until a part of the limiting pin 16 extends into the movement path of the locking pin 15, so that the locking pin 15 cannot be restored to a state of being clamped with the locking pin 13. In this way, when the commander rotates the lock cylinder 14 by the unlocking key and does not pull out the earth wire head 20, the lock pin 15 can remain disengaged from the locking pin 13, so that the commander can pull out the earth wire head 20 from the locking assembly 10 without continuing to operate the unlocking key after rotating the unlocking key, in other words, the commander can rotate the lock cylinder 14 by using the unlocking key first, then retrieve the unlocking key, at which time the lock pin 15 is still disengaged from the locking pin 13, and then the commander can pull out the earth wire head 20 from the locking assembly 10 conveniently.

As shown in fig. 3 to 6, at least a part of the locking pin 13 can be engaged with the stopper pin 16, and when the locking pin 13 is switched from the locked position to the unlocked position, the stopper pin 13 drives the stopper pin 16 to move out of the movement path of the locking pin 15, releasing the stopper of the locking pin 15.

Specifically, the side edge of the locking pin 13 is formed with a protruding portion 131, when the locking pin 13 is switched from the locking position to the unlocking position, the locking pin 13 moves in a direction away from the locking space, at this time, the protruding portion 131 can press the stop end of the limiting pin 16, so that the stop end exits the movement path of the locking pin 15, the locking pin 15 can move in a direction close to the locking pin 13, at this time, the locking pin 15 moves on the movement path of the limiting pin 16 again, so that the limiting pin 16 cannot stop the locking pin 15, and thereby the resetting of both the locking pin 15 and the limiting pin 16 is realized.

In the present embodiment, only when the lock pin 15 is disengaged from the latching pin 13, the stopper end of the stopper pin 16 can be moved onto the movement path of the lock pin 15, as shown in fig. 5. The stop end of the stop pin 16 is withdrawn to the movement path of the lock pin 15, one of which is that the lock pin 15 is engaged with the lock pin 13 and the lock pin 13 is in the locked position, as shown in fig. 4, and the other is that the lock pin 15 is disengaged from the lock pin 13 and the lock pin 13 is in the unlocked position, as shown in fig. 6, and in both cases, the stop pin 16 is withdrawn from the movement path of the lock pin 15.

As shown in fig. 3, the latch assembly 10 further includes a stopper pin restoring member 17 and a latch pin restoring member 110, the stopper pin restoring member 17 being in abutment with the stopper pin 16 and the housing 12 and providing a restoring force to the stopper pin 16 for movement to the side of the lock pin 15, the latch pin restoring member 110 being in abutment with the latch pin 13 and the housing 12 and providing a restoring force to the latch pin 13 for movement to the lock space.

In the present embodiment, the close ends of the stopper pin 16 and the latch pin 13 are provided with the stopper pin reset member 17 and the latch pin reset member 110, respectively, that is, the stopper pin reset member 17 and the latch pin reset member 110 provide the stopper pin 16 and the latch pin 13 with the same reset force in the moving direction, respectively.

Alternatively, the locking pin 15 has a stepped structure that mates with the stopper pin 16.

Specifically, the end portions of the locking pin 15 and the limiting pin 16, which are close to each other, are provided with step structures, and the protruding portion of the step structure of the limiting pin 16 serves as a stop end to stop the end face of the locking pin 15, and meanwhile, the step structure of the locking pin 15 can stop the end portion of the protruding portion of the step structure of the limiting pin 16, so that the problem that the limiting pin 16 cannot be effectively recovered due to overlarge movement distance is prevented.

The locking assembly 10 in this embodiment further includes a locking pin resetting member 18, where two ends of the locking pin resetting member 18 respectively abut against the housing 12 and the locking pin 15, so as to provide a resetting force for the locking pin 15 to move to one side of the locking pin 13, so that the locking pin 15 can automatically engage the locking pin 13 when the limiting pin 16 exits from the movement path of the locking pin 15.

Alternatively, the lock pin 15 has an unlocking groove 151, the lock cylinder 14 has an unlocking protrusion 141 protruding into the unlocking groove 151, and when the lock cylinder 14 is unlocked, the unlocking protrusion 141 overcomes the restoring force of the lock pin restoring member 18 and presses the side wall of the unlocking groove 151 to disengage the lock pin 15 from the lock pin 13.

Further alternatively, the unlocking protrusion 141 is a semicircular protrusion. When the locking pin 15 is clamped with the locking pin 13, the plane of the semicircular protruding block is in contact with the side wall of the unlocking groove 151 or has a certain interval, and when the lock cylinder 14 rotates, the arc-shaped surface of the semicircular protruding block presses the side wall of the unlocking groove 151 to push the locking pin 15 to slide, so that the locking pin 15 is separated from the locking pin 13.

Of course, the unlocking protrusion 141 may be a rectangular block, a diamond block, a rectangular flat lug with an arc surface on the side surface of the rectangular block, or a circular protrusion eccentrically arranged with the axis of the lock cylinder 14.

As shown in fig. 3, the latch assembly 10 further includes an auxiliary latch pin 19, the auxiliary latch pin 19 is slidably disposed in the housing 12 and protrudes toward the locking space, and the auxiliary latch pin 19 is spaced apart from the latch pin 13 in the circumferential direction of the ground head 20.

In this embodiment, the included angle between the auxiliary locking pin 19 and the locking pin 13 is 180 degrees, that is, the two sides of the ground wire head 20 are opposite to each other, so that when the ground wire head 20 is inserted or pulled out, the ground wire head 20 can be uniformly stressed, and the problem that the ground wire head 20 is broken or locked to lose efficacy due to the stress of one side of the ground wire head 20 is prevented. Accordingly, an auxiliary latching pin reset member is provided between the auxiliary latching pin 19 and the housing 12 to keep the auxiliary latching pin 19 extended into the locking space.

As shown in fig. 8, the end of the ground wire head 20 extending into the locking space has a locking groove 21, the locking pin 13 can be clamped in the locking groove 21 to lock the ground wire head 20, and the end of the ground wire head 20 away from the locking groove 21 has a connection structure 22 connected with the ground wire.

Specifically, the locking groove 21 is an annular groove, and when the ground wire head 20 extends into the locking space, the auxiliary locking pin 19 and the locking pin 13 can be clamped in the annular groove, so that the ground wire head 20 is locked. The end of the ground wire head 20 far away from the locking groove 21 is a semicircular connecting structure 22, the plane of the connecting structure 22 is provided with a mounting hole matched with the ground wire, a shaft shoulder is further arranged between the connecting structure 22 and the locking groove 21, and when the ground wire head 20 stretches into the locking space, the shaft shoulder can be abutted on the shell 12 of the locking assembly 10 so as to limit the distance of the ground wire head 20 inserted into the locking assembly 10.

As shown in fig. 7 and 8, the ground pin assembly further includes: the magnetic element 30, the induction element 40 and the identity chip 50, wherein the magnetic element 30 is magnetic steel and is arranged at one end of the ground wire head 20, which is close to the locking groove 21; the sensing piece 40 is arranged on the lock core 14 and can sense the position relation with the magnetic piece 30 to judge the locking or unlocking of the ground wire head 20; the identity chip 50 is disposed on the lock cylinder 14 and forms a wireless chip with the sensing element 40 to identify the unlocking key. The identity chip 50 can acquire the code value through the unlocking key, the sensing piece 40 is matched with the magnetic steel arranged at the end part of the ground wire head 20, when the ground wire is hung, the magnetic steel is close to the sensing piece 40, the identity chip 50 displays the corresponding code value, when the ground wire is dismounted, the magnetic steel is far away from the sensing element, and the identity chip 50 displays another code value, so that the information acquisition function of different states of hanging or dismounting the ground wire is realized.

As shown in fig. 3, the ground pin assembly further includes a lock nut 60 by which the ground wire head 20 is held in contact with the housing 12 to electrically connect the ground wire head 20 with the ground pin 11. The ground wire head 20 is threaded and clamped on the lock nut 60, and the lock nut 60 is connected with the locking assembly 10 to lock the ground wire head 20 on the locking assembly 10. After the ground wire head 20 is inserted into the locking space, the butterfly-shaped locking nut 60 abuts against the shoulder of the ground wire head 20, so that the ground wire head 20 is firmly locked on the locking assembly 10, and effective contact between the ground wire head 20 and the shell 12 is ensured, so that electric connection is realized.

The use process of this embodiment is as follows:

when the grounding wire is hung or removed, the unlocking key is inserted into the lock cylinder 14 to unlock and drive the unlocking convex block 141 to rotate, the locking pin 15 is separated from the locking pin 13 under the action of the unlocking convex block 141, the locking of the locking pin 13 is released, at the moment, the limiting pin 16 moves onto the movement path of the locking pin 15 under the action of the limiting pin resetting piece 17, and the locking pin 15 is limited at a position separated from the locking pin 13; the unlocking key is taken out after rotating back to the initial position, at this time, the locking assembly 10 is in an unlocking state, and the ground wire head 20 can be inserted or pulled out; in the process of inserting or extracting the ground wire head 20, the locking pin 13 and the auxiliary locking pin 19 exit from the locking space under the action of the ground wire head 20, meanwhile, the locking pin 13 drives the limiting pin 16 to exit from the movement path of the locking pin 15, the limitation on the locking pin 15 is removed, the locking pin 15 acts under the action of the locking pin resetting piece 18, and when the ground wire head 20 is completely inserted or extracted, the locking pin 15 locks the locking pin 13 again, so that the function of automatic locking when the ground wire is hung or dismounted is realized.

Example two

The difference from the first embodiment is that the unlocking protrusion 141 of the lock cylinder 14 directly drives the movement of the locking pin 13.

Specifically, the unlocking protrusion 141 directly extends into the locking groove of the locking pin 13, when the lock cylinder 14 rotates, the unlocking protrusion 141 can squeeze the side wall of the locking groove to enable the locking pin 13 to move in a direction away from the locking space, so that the locking of the ground wire head 20 is released, unlocking is achieved, and at the moment, an operator is instructed to pull out the ground wire head 20, so that the ground wire head 20 can be separated from the locking assembly 10.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. the problem of the ground pin tool to lock in the prior art poor reliability is solved;

2. the grounding needle can be prevented from being operated by non-instruction personnel without permission, the safety and reliability of electricity consumption are improved, and the correct operation procedure is ensured;

3. when the ground wire head is plugged in and pulled out each time, an unlocking key is required to be plugged in to read the code for unlocking, so that the command personnel is prevented from operating inadvertently and missing the command;

4. the operation is simple, and repeated operation of hanging the ground wire and disassembling the ground wire is avoided;

5. automatic locking can be realized when the ground wire head is inserted and pulled out;

6. the state identification can be realized when the ground wire head is inserted and pulled out.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grounding pin assembly comprising a locking assembly (10) with a grounding pin (11) and a ground wire head (20) lockable or disconnectable from the locking assembly (10), wherein the locking assembly (10) further comprises:

a housing (12), the housing (12) having a locking space for locking the ground wire head (20), the ground pin (11) being fixed to the housing (12);

a locking pin (13), the locking pin (13) being slidably arranged in the housing (12) and protruding into the locking space;

the lock cylinder (14) is arranged in the shell (12) and is in driving connection with the locking pin (13) so that the locking pin (13) can be switched from a locking position for locking the ground wire head (20) to an unlocking position for avoiding the ground wire head (20), and when the ground wire head (20) is locked at the locking position, the ground wire head (20) is electrically connected with the grounding pin (11) through the locking assembly (10);

the locking assembly (10) further comprises a locking pin (15) which is arranged in the shell (12) in a sliding manner, and the lock cylinder (14) is clamped or separated from the locking pin (13) through the locking pin (15);

the locking pin (13) is provided with a locking groove, and the end part of the locking pin (15) can be clamped with or separated from the locking groove;

the locking assembly (10) further comprises a limiting pin (16) which is arranged in the shell (12) in a sliding mode, when the grounding pin assembly is in a locking state, the limiting pin (16) is out of the moving path of the locking pin (15), and the end portion of the locking pin (15) is clamped into the locking groove, so that the locking pin (13) locks the ground wire head (20).

2. The ground pin assembly according to claim 1, characterized in that the locking assembly (10) further comprises a limit pin (16) slidably arranged in the housing (12), the limit pin (16) being capable of blocking movement of the lock pin (15) when the ground pin assembly is in an unlocked state, the limit pin (16) being pressed by the lock pin (13) when the ground pin (20) is inserted into or extracted from the lock space, the limit pin (16) being retracted to release the stop for the lock pin (15), an end of the lock pin (15) being capable of being snapped into the lock groove, the lock pin (15) being snapped into the lock groove after the ground pin (20) is inserted into or extracted from the lock space, the limit pin (16) being abutted against a side wall of the lock pin (15).

3. The ground pin assembly of claim 2, characterized in that the locking pin (13) has a protrusion (131), the protrusion (131) being capable of pressing the limit pin (16) when the locking pin (13) is switched from the locked position to the unlocked position.

4. The ground pin assembly of claim 2, wherein the latch assembly (10) further comprises a stop pin return member (17), the stop pin return member (17) abutting the stop pin (16) and providing a return force to the stop pin (16) for movement to one side of the locking pin (15).

5. The ground pin assembly of claim 2, wherein the locking pin (15) has a stepped configuration that mates with the stop pin (16).

6. The grounding pin assembly according to claim 1, wherein the locking assembly (10) further comprises a locking pin resetting piece (18), and both ends of the locking pin resetting piece (18) are respectively abutted on the shell (12) and the locking pin (15) so as to provide a resetting force for the locking pin (15) to move to one side of the locking pin (13); the lock pin (15) is provided with an unlocking groove (151), the lock cylinder (14) is provided with an unlocking lug (141) extending into the unlocking groove (151), and when the lock cylinder (14) is unlocked, the unlocking lug (141) overcomes the resetting force of the lock pin resetting piece (18) and presses the side wall of the unlocking groove (151) so as to enable the lock pin (15) to be separated from the locking pin (13).

7. The ground pin assembly of claim 6, wherein the unlocking tab (141) is a semi-circular tab.

8. The ground pin assembly of claim 1, wherein the latch assembly (10) further comprises a latch pin return (110), the latch pin return (110) abutting the latch pin (13) and providing a return force to the latch pin (13) for movement to the lock space.

9. The ground pin assembly of claim 1, wherein the latch assembly (10) further comprises an auxiliary latch pin (19), the auxiliary latch pin (19) being slidably disposed within the housing (12) and projecting into the locking space, and the auxiliary latch pin (19) being spaced apart from the latch pin (13) along the circumference of the ground pin (20).

10. The grounding pin assembly according to claim 1, characterized in that the end of the ground wire head (20) extending into the locking space is provided with a locking groove (21), and the locking pin (13) can be clamped in the locking groove (21) to lock the ground wire head (20).

11. The ground pin assembly of claim 10, further comprising:

a magnetic member (30), wherein the magnetic member (30) is arranged at one end of the ground wire head (20) close to the locking groove (21);

the sensing piece (40) is arranged on the lock cylinder (14) and can sense the position relation between the sensing piece (40) and the magnetic piece (30) so as to judge the locking or unlocking of the ground wire end (20);

the identity chip (50) is arranged on the lock cylinder (14) and forms a wireless chip with the sensing piece (40) so as to identify the unlocking key.

12. The ground pin assembly of any one of claims 1-11, further comprising a lock nut (60), the ground pin (20) being held in contact with the housing (12) by the lock nut (60) to electrically connect the ground pin (11) with the ground pin (20).