CN214153307U - Folding bolt structure and folding plug - Google Patents

Abstract

The utility model provides a folding bolt structure and folding plug relates to electrical apparatus technical field, and this folding bolt structure includes base, gland, folding bolt and bolt pivot, and the bolt rotates rotationally the assembly on the base, and folding bolt is connected with the bolt pivot to can drive the relative base rotation of bolt pivot, the gland cover is established in the bolt pivot and is connected with the base, and is provided with the elastic arm on the gland, and the elastic arm is used for supporting and holds in the bolt pivot, so that the bolt pivot has the damping when rotating. Compared with the prior art, the utility model discloses an elastic arm supports holds in the bolt pivot for the bolt pivot has the damping when rotating, and damping when can guaranteeing to fold feels, and folding hand feels, and keeps the gesture after folding bolt rotates predetermined position, and whole gesture can remain stable when inserting the socket, pegs graft the convenience.

Description

Folding bolt structure and folding plug

Technical Field

The utility model relates to an electrical apparatus technical field particularly, relates to a folding bolt structure and folding plug.

Background

In the prior art, in order to reduce the occupied space of the plug, and the portability and the safety, a folding plug is provided, namely, the conductive plug pin can be folded and retracted into the plug when not used. The folding gesture of current foldable plug only keeps through pivot self damping at folding in-process, leads to long-time use back damping to reduce, can't keep when the bolt stretches out, very easily produces the folding condition of bolt at the in-process of bolt insertion socket, leads to the grafting difficulty, and when the folding bolt of hand when not using, the damping is felt relatively poor simultaneously, leads to folding feel not good enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding bolt structure, its damping when guaranteeing to fold is felt, and folding hand is felt, and whole gesture can remain stable when inserting the socket, and it is convenient to peg graft.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a folding bolt structure, including base, gland, folding bolt and bolt pivot, the bolt rotates and rotationally assembles on the base, folding bolt with the bolt pivot is connected, and can drive the bolt pivot is relative the base rotates, the gland cover is established in the bolt pivot and with the base is connected, just be provided with the elastic arm on the gland, the elastic arm is used for supporting and holds in the bolt pivot, so that damping has when the bolt pivot rotates.

In an optional implementation manner, the bolt rotating shaft includes a shaft body, a rotating shaft boss disposed on the shaft body, and connecting blocks disposed at two ends of the shaft body, the folding bolt is connected to the connecting blocks, the elastic arm is in clearance fit with the shaft body, and the rotating shaft boss is used for abutting against the elastic arm.

In an optional embodiment, an arc-shaped groove is further formed in one side, close to the shaft body, of the elastic arm, and the rotating shaft boss is used for abutting against the surface of the arc-shaped groove.

In an optional implementation mode, the gland is provided with a yielding groove opposite to the bolt rotating shaft, and the elastic arm is arranged in the yielding groove and connected with one side edge of the yielding groove.

In an alternative embodiment, the elastic arm is integrally disposed on the press cover, and the elastic arm extends from one side edge of the abdicating groove to the opposite other side edge.

In an optional embodiment, the base is provided with a pin accommodating groove for accommodating the foldable pin, and the elastic arm is separated from the pin rotating shaft when the foldable pin is accommodated in the pin accommodating groove.

In an optional embodiment, the base is further provided with a rotating shaft groove for accommodating the latch rotating shaft.

In an optional embodiment, the folding plug pin structure further includes conductive elastic pieces disposed at two ends of the plug pin rotating shaft, conductive protrusions are disposed at two ends of the plug pin rotating shaft, the conductive protrusions are electrically connected with the folding plug pin, and the conductive elastic pieces are connected with the base and abut against the conductive protrusions.

In an optional embodiment, the conductive protrusion has a conductive contact for contacting with the conductive elastic sheet, and the conductive contact coincides with a rotation axis of the plug pin rotation shaft.

In an optional embodiment, the conductive elastic sheet includes a connecting portion, a supporting portion and an elastic portion, the connecting portion is connected to the base and connected to the supporting portion, the supporting portion is supported on the conductive protrusion, and the elastic portion is disposed on a side of the supporting portion away from the conductive protrusion and supported on the base for applying an elastic force to the supporting portion.

In an alternative embodiment, one side of the elastic portion is connected to one side of the abutting portion, and the elastic portion and the abutting portion form a V-shaped structure.

The embodiment of the utility model provides a beneficial effect is:

the utility model provides a folding bolt structure rotationally assembles the bolt pivot on the base, and folding bolt is connected with the bolt pivot to can rotate relative to the base under the drive of bolt pivot, the gland cover is established in the bolt pivot and is connected with the base, and is provided with the elastic arm on the gland, and the elastic arm is used for supporting and holds in the bolt pivot, so that has the damping when the bolt pivot rotates. Support through the elastic arm and hold in the bolt pivot for the bolt pivot has the damping when rotating, and the damping when can guaranteeing to fold feels, and folding feel is good, and keeps the gesture after folding bolt rotates to the predetermined position, and whole gesture can remain stable when inserting the socket, pegs graft the convenience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of an overall structure of a folding plug pin structure provided in a first embodiment of the present invention at a first viewing angle;

fig. 2 is an exploded schematic view of a folding plug pin structure according to a first embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a folding plug pin structure according to a first embodiment of the present invention;

FIG. 4 is a schematic view of the connection structure between the plug rotation shaft and the folding plug in FIG. 2;

fig. 5 is a schematic structural view of the conductive elastic sheet in fig. 2;

fig. 6 is a schematic view of an overall structure of the folding plug pin structure provided in the first embodiment of the present invention at a second viewing angle.

Icon:

100-folding bolt structure; 110-a base; 111-a stud; 113-a shaft recess; 115-a plug pin receiving groove; 130-a gland; 131-a resilient arm; 133-screw holes; 135-arc-shaped groove; 137-a yielding groove; 150-folding bolt; 151-conductive bumps; 153-conductive contacts; 170-bolt rotating shaft; 171-axle body; 173-rotating shaft boss; 175-connecting block; 190-a conductive spring plate; 191-a connecting part; 193-a holding portion; 195-an elastic portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1 and 2, the present embodiment provides a folding plug pin structure 100, which can ensure damping sense during folding, has good folding hand feeling, and can maintain stable overall posture during inserting into a socket, and is convenient for plugging.

The folding plug pin structure 100 provided by the embodiment comprises a base 110, a gland 130, a folding plug pin 150, a plug pin rotating shaft 170 and conductive elastic pieces 190 arranged at two ends of the plug pin rotating shaft 170, wherein the plug pin is rotatably assembled on the base 110 in a rotating manner, the folding plug pin 150 is connected with the plug pin rotating shaft 170 and can drive the plug pin rotating shaft 170 to rotate relative to the base 110, the gland 130 is covered on the plug pin rotating shaft 170 and is connected with the base 110, an elastic arm 131 is arranged on the gland 130, and the elastic arm 131 is used for abutting against the plug pin rotating shaft 170 so that the plug pin rotating shaft 170 has damping when rotating. The two ends of the plug pin rotating shaft 170 are provided with conductive protrusions 151, the conductive protrusions 151 are electrically connected with the folding plug pin 150, and the conductive elastic sheet 190 is connected with the base 110 and abuts against the conductive protrusions 151.

In this embodiment, the screw hole 133 is opened at the tail end of the pressing cover 130, the stud 111 is correspondingly disposed on the base 110, the pressing cover 130 is fixed on the base 110 by a screw and covers the bolt rotating shaft 170, so that the pressing cover 130 and the base 110 are relatively fixed, and the elastic arm 131 has enough elastic force to abut against the bolt rotating shaft 170. The conductive elastic sheet 190, the conductive protrusions 151 and the folding pins 150 are two, the two folding pins 150 are arranged on the pin rotating shaft 170 at intervals, the two conductive protrusions 151 are electrically connected with the two folding pins 150 respectively, the two conductive elastic sheets 190 are electrically contacted with the two conductive protrusions 151 respectively, so that the electrical connection is realized, and the conductive elastic sheets 190 are connected with an external wire, so that the function of a plug is realized.

It should be noted that, in this embodiment, the elastic arm 131 is disposed in the middle of the pressing cover 130 and abuts against the surface of the plug pin rotating shaft 170 downward, so that the plug pin rotating shaft 170 needs to overcome the friction and the elastic force of the elastic arm 131 when rotating, and thus the plug pin rotating shaft 170 has damping when rotating, and can ensure the damping sense when folding, and the folding hand feeling is good, and after the folding plug pin 150 rotates to a predetermined position, the posture is maintained under the abutting of the elastic arm 131, and the overall posture can be kept stable when inserting into the socket, and the plugging is convenient.

In this embodiment, the base 110 is provided with a rotating shaft groove 113 for accommodating the plug pin rotating shaft 170, the shape of the rotating shaft groove 113 is matched with the plug pin rotating shaft 170, specifically, the plug pin rotating shaft 170 is accommodated at the front end of the pressing cover 130, an accommodating space is formed between the inner side surface of the pressing cover 130 and the rotating shaft groove 113, the plug pin rotating shaft 170 is rotatably accommodated in the accommodating space, when the plug pin rotating shaft is plugged, the pressing cover 130 realizes a limiting effect on the plug pin rotating shaft 170 in the vertical direction, so that the folding plug pin 150 completes the plugging action. Meanwhile, the upper limit of the latch rotating shaft 170 is realized by the elastic arm 131, that is, under the limit action of the elastic arm 131, the latch rotating shaft 170 rotates in the rotating shaft groove 113 in a damping manner.

Referring to fig. 3 to 6, the latch rotating shaft 170 includes a shaft body 171, a rotating shaft boss 173 disposed on the shaft body 171, and a connecting block 175 disposed at two ends of the shaft body 171, the folding latch 150 is connected to the connecting block 175, the elastic arm 131 is in clearance fit with the shaft body 171, and the rotating shaft boss 173 is used to abut against the elastic arm 131. Specifically, two connecting blocks 175 are integrally disposed at two ends of the shaft body 171, two conductive protrusions 151 are disposed at outer end faces of the two connecting blocks 175, respectively, the rotating shaft boss 173 is disposed at a partial outer peripheral face of the shaft body 171 and located in a half area of the shaft body 171 far away from the folding plug pin 150, and the surface of the rotating shaft boss 173 is smooth and smooth, so as to facilitate friction rolling with the elastic arm 131. Still be provided with on the gland 130 and be used for carrying on spacing groove to connecting block 175, connecting block 175 rotates the assembly at spacing inslot, and when folding bolt 150 to the socket of pegging graft, the spacing groove plays to support and holds the effect, guarantees that folding bolt 150 of grafting in-process can not shift.

It should be noted that, the rotating shaft boss 173 in this embodiment is a local protruding structure on the shaft body 171, in other preferred embodiments of the present invention, the rotating shaft boss 173 may also be annular and wound around the outer peripheral surface of the shaft body 171, that is, the diameter of the shaft body 171 is locally increased, so that the rotating shaft boss 173 can always abut against the elastic arm 131, and the function of increasing the rotational damping of the plug pin rotating shaft 170 can also be realized. Of course, in order to increase the damping feel, an anti-slip groove may be provided on the outer circumferential surface of the rotation shaft boss 173, and the specific structure thereof will not be described too much.

In this embodiment, an arc-shaped groove 135 is further disposed on one side of the elastic arm 131 close to the shaft body 171, and the rotating shaft boss 173 is used for abutting against the surface of the arc-shaped groove 135. Specifically, the depth of the arc-shaped groove 135 is less than or equal to the height of the rotation shaft boss 173 relative to the shaft body 171, so that when the rotation shaft boss 173 frictionally rolls in the arc-shaped groove 135, the elastic arm 131 is always pressed upward, and thus downward elastic force is applied to the rotation shaft boss 173.

In this embodiment, the extending direction of the folding plug 150 is set to be a first straight line direction, the connecting line direction between the end of the rotating shaft boss 173 far away from the shaft body 171 and the center of the shaft body 171 is set to be a second straight line direction, and an obtuse angle is formed between the first straight line direction and the second straight line direction, that is, as shown in fig. 3, when the folding plug 150 rotates to a vertical position, that is, to be inserted into the socket, the rotating shaft boss 173 is located at the rear end position of the arc-shaped groove 135; when the folding latch 150 is folded, the hinge boss 173 moves from the rear end of the arc-shaped groove 135 toward the front end and lifts the elastic arm 131 such that the elastic arm 131 applies a certain elastic force to the hinge boss 173.

In other preferred embodiments of the present invention, in order to further improve the damping of the folding plug 150 during the rotation process, the surface of the arc-shaped groove 135 is further provided with an anti-slip bump structure to increase the roughness of the arc-shaped groove 135, and the anti-slip bump structure is between 0.1mm and 0.5mm higher than the surface of the arc-shaped groove 135, so as to prevent the rotating shaft boss 173 from being jammed.

In the present embodiment, the width of the rotation shaft boss 173 is the same as the width of the elastic arm 131 in the same direction in the axial direction of the shaft body 171, thereby ensuring a good abutting effect.

In this embodiment, the pressing cover 130 is provided with a yielding groove 137 opposite to the latch rotating shaft 170, and the elastic arm 131 is disposed in the yielding groove 137 and connected to one side edge of the yielding groove 137. Specifically, the receding groove 137 has a rectangular shape, and the elastic arm 131 extends from the rear side edge of the receding groove 137 toward the front side. The front end of the elastic arm 131 is in clearance fit with the front side edge of the abdicating groove 137, the arc-shaped groove 135 is arranged at the front end of the elastic arm 131, and the front end of the elastic arm 131 abuts against the rotating shaft boss 173, so that the plug rotating shaft 170 is limited and abutted.

It should be noted that, in the present embodiment, the elastic arm 131 is integrally provided on the pressing cover 130 and extends from the rear side edge of the avoiding groove 137 toward the front side edge. During actual manufacturing, the elastic arm 131 and the gland 130 are integrally formed, that is, the elastic arm 131 is directly formed after the yielding groove 137 is formed on the gland 130, so that the production and installation are convenient, and the manufacturing efficiency is improved. Of course, the resilient arm 131 may be separately formed and welded/welded to the gland 130 after the relief groove 137 is formed.

In the embodiment, the base 110 is provided with a pin receiving groove 115 for receiving the foldable pin 150, and the elastic arm 131 is separated from the pin rotating shaft 170 when the foldable pin 150 is received in the pin receiving groove 115. Specifically, the latch receiving groove 115 is recessed toward the inner side of the base 110, and a protruding structure is formed inside the base 110, and the height of the protruding structure is less than or equal to the height of the stud 111 on the base 110, so as to avoid interference with the gland 130. And when the foldable plug 150 is rotated to the horizontal position, i.e. in the folded state, the elastic arm 131 and the rotation shaft boss 173 are released from the abutting, so that the foldable plug 150 can be taken out from the plug accommodating groove 115 by hand with less effort and convenience. The length of the arc-shaped groove 135 and the size of the included angle between the first linear direction and the second linear direction may be set to enable the elastic arm 131 to be separated from the rotation shaft boss 173 when the folding plug 150 is folded in the plug-pin receiving groove 115, and the implementation means thereof is not limited herein.

In this embodiment, the conductive protrusion 151 has a conductive contact 153 thereon for contacting the conductive spring 190, and the conductive contact 153 coincides with the rotation axis of the plug pin rotation shaft 170. Specifically, the conductive contact 153 is a pointed structure, and the conductive contact 153 coincides with the axis of the shaft body 171, so that in the rotation process of the shaft body 171, the contact position between the conductive contact 153 and the conductive elastic sheet 190 is kept unchanged, the moving track of the conductive contact 153 is more reasonable, the contact wear is smaller, and the conduction is safer and more reliable.

In this embodiment, the two folding pins 150 are respectively connected to the two connection blocks 175 and inserted into the connection blocks 175, and the top ends of the two folding pins 150 are bent toward a direction away from each other and protrude outward from the connection blocks 175 to form the conductive protrusion 151, that is, the conductive protrusion 151 and the folding pins 150 are an integral structure.

The conductive elastic sheet 190 includes a connecting portion 191, a supporting portion 193, and an elastic portion 195, the connecting portion 191 is connected to the base 110 and connected to the supporting portion 193, the supporting portion 193 supports against the conductive protrusion 151, and the elastic portion 195 is disposed on a side of the supporting portion 193 away from the conductive protrusion 151 and supports against the base 110, and is used for applying an elastic force to the supporting portion 193. Specifically, the connecting portion 191, the abutting portion 193 and the elastic portion 195 are integrally formed, the connecting portion 191 and the abutting portion 193 are of a bending structure, a leg structure for welding is arranged on the connecting portion 191, and the leg structure is welded on the base 110, so that the connecting portion 191 and the base 110 are relatively fixed, and the conductive elastic sheet 190 is fixed.

In this embodiment, one side of the elastic portion 195 is connected to one side of the abutting portion 193, and the elastic portion 195 and the abutting portion 193 form a V-shaped structure. Specifically, the abutting portion 193 is configured to abut against the conductive contact 153, and the elastic portion 195 abuts against a sidewall of the base 110, so as to apply an elastic force to the abutting portion 193, thereby ensuring good contact between the abutting portion 193 and the conductive contact 153. Through two electrically conductive shell fragments 190, can realize the limiting displacement to bolt pivot 170 both ends to combine spacing recess on the base 110, spacing groove and elastic arm 131 on the gland 130, can follow from about to spacing to bolt pivot 170, and then make all directions of bolt pivot 170 atress even, further optimize folding and feel.

In other preferred embodiments of the present invention, the conductive elastic sheet 190 can also elastically abut against the conductive contact 153 by other means, for example, a compression spring is disposed on the conductive elastic sheet 190, which is not limited herein.

In summary, the embodiment provides a folding plug pin structure 100, which abuts against the rotating shaft boss 173 on the shaft body 171 through the elastic arm 131, so that the plug pin rotating shaft 170 has damping when rotating, the damping sense when folding can be ensured, the folding hand feeling is good, the folding plug pin 150 keeps a posture after rotating to a predetermined position, the overall posture can be kept stable when the plug pin is inserted into the socket, and the plug pin is convenient to insert. In addition, through the electrically conductive shell fragment 190 who sets up the V-arrangement structure, can guarantee the good contact between electrically conductive shell fragment 190 and the electrically conductive contact 153, and electrically conductive contact 153 is located the axis direction of axis body 171, can make the contact position between electrically conductive contact 153 and the electrically conductive shell fragment 190 remain unchanged, and electrically conductive contact 153's activity orbit is more reasonable, contact wear is less, electrically conductive safe and reliable.

Second embodiment

The present embodiment provides a folding plug comprising a wire and a folding plug pin structure 100 as provided in the first embodiment.

Folding plug includes wire, shell and folding bolt structure 100, and folding bolt structure 100 includes base 110, gland 130, folding bolt 150 and bolt pivot 170, the bolt rotates rotationally the assembly and is in on the base 110, folding bolt 150 with bolt pivot 170 connects, and can drive bolt pivot 170 is relative base 110 rotates, gland 130 covers and establishes on the bolt pivot 170 and with base 110 connects, just be provided with elastic arm 131 on the gland 130, elastic arm 131 is used for supporting and holds in on the bolt pivot 170, so that damping has when bolt pivot 170 rotates. The lead is electrically connected with a folding bolt 150, and the housing covers the gland 130 and is detachably connected with the base 110, and the specific structure of the housing can refer to the housing of the existing plug.

Further, the folding plug pin structure 100 further includes conductive elastic pieces 190 disposed at two ends of the plug pin rotating shaft 170, the two ends of the plug pin rotating shaft 170 are provided with conductive protrusions 151, the conductive protrusions 151 are electrically connected with the folding plug pin 150, and the conductive elastic pieces 190 are connected with the base 110 and abut against the conductive protrusions 151. The conductive wire is connected to the conductive spring 190, thereby achieving an electrical connection with the folding pin 150.

It should be noted that, in other preferred embodiments of the present invention, the folding plug may not be connected through a wire, for example, the conductive elastic sheet 190 is directly connected to a circuit board, and the circuit board is connected to other electrical components, and the electrical connection structure of the folding plug is not limited herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a folding bolt structure, its characterized in that includes base, gland, folding bolt and bolt pivot, the bolt pivot is rotationally assembled on the base, folding bolt with the bolt pivot is connected, and can drive the bolt pivot is relative the base rotates, the gland cover is established in the bolt pivot and with the base is connected, just be provided with the elastic arm on the gland, the elastic arm is used for supporting and holds in the bolt pivot, so that damping has when the bolt pivot rotates.

2. The folding plug pin structure according to claim 1, wherein the plug pin rotation shaft includes a shaft body, a rotation shaft boss disposed on the shaft body, and connection blocks disposed at two ends of the shaft body, the folding plug pin is connected to the connection blocks, the elastic arm is in clearance fit with the shaft body, and the rotation shaft boss is used for abutting against the elastic arm.

3. The folding plug pin structure according to claim 2, wherein an arc-shaped groove is further formed in one side of the elastic arm close to the shaft body, and the rotating shaft boss is used for abutting against the surface of the arc-shaped groove.

4. The foldable plug pin structure according to claim 1, wherein the pressing cover is provided with a recess opposite to the plug pin rotating shaft, and the elastic arm is disposed in the recess and connected to one side edge of the recess.

5. The folding latch structure according to claim 4, wherein the resilient arm is integrally formed on the press cover, and the resilient arm extends from one side edge of the receding groove to the opposite side edge.

6. The folding plug pin structure according to claim 1, wherein a plug pin receiving groove for receiving the folding plug pin is provided on the base, and the elastic arm is disengaged from the plug pin rotating shaft in a state where the folding plug pin is received in the plug pin receiving groove.

7. The folding plug pin structure according to any one of claims 1 to 6, further comprising conductive elastic pieces disposed at both ends of the plug pin rotating shaft, wherein conductive protrusions are disposed at both ends of the plug pin rotating shaft, the conductive protrusions are electrically connected with the folding plug pin, and the conductive elastic pieces are connected with the base and abut against the conductive protrusions.

8. The folding plug pin structure according to claim 7, wherein the conductive protrusion has a conductive contact for contacting with the conductive elastic piece, and the conductive contact coincides with a rotation axis of the plug pin rotation shaft.

9. The folding plug pin structure according to claim 7, wherein the conductive elastic piece comprises a connecting portion, a butting portion and an elastic portion, the connecting portion is connected with the base and connected with the butting portion, the butting portion butts against the conductive protrusion, and the elastic portion is arranged on one side of the butting portion, which is far away from the conductive protrusion, and butts against the base and is used for applying elastic force to the butting portion.

10. A folding plug comprising a folding plug pin structure according to any one of claims 1 to 9.

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