CN210576940U - Charging base of ironing equipment - Google Patents

Abstract

The utility model relates to an ironing device's charging base, include: a housing and a powered electrode; the micro switch is arranged in the shell and used for controlling the on-off of a circuit where the power connection electrode is located; further comprising: a sliding seat support; the sliding seat is arranged on the sliding seat support in a sliding mode and can drive the power connection electrode correspondingly arranged on the sliding seat to be close to the power connection plug post so as to be in contact with the power connection plug post; the first return spring acts on the sliding seat and enables the power connection electrode correspondingly arranged on the sliding seat to always have a trend of being far away from the power connection inserting column; the rotating frame can be rotatably arranged in the shell, can drive the sliding seat to move relative to the sliding seat support in the rotating process of being pressed on the power connection inserting column, and is provided with a trigger part which can continuously rotate along with the rotating frame after the power connection electrode is contacted with the power connection inserting column so as to trigger the micro switch to be closed. This charging base enables to connect the electric electrode and stably be close to connect the electric post and contact and then reduce the ironing equipment and place the problem of striking sparks when on charging base.

Description

Charging base of ironing equipment

Technical Field

The utility model relates to a socket technical field that charges especially relates to an ironing equipment's charging base.

Background

The operation of charging can be placed on the base that charges to current disconnect-type electric iron main part, can charge when the electricity of iron main part inserts in the jack of electrical socket, can directly cut off the power supply when the electricity of iron main part inserts the jack of post and takes out from the jack of electrical socket, and when the in-service use, the electric conduction contact piece that the electricity was connected to the iron inserted the post and is inserted the post and the electrical socket can produce the friction phenomenon of striking sparks in the removal in-process, has certain potential safety hazard.

In order to solve the above technical problem, application No. CN201620548158.7 (grant publication No.:

CN205666415U), the electrical socket comprises a housing, a lug for electrically contacting with an electrical plug, a switch and a movable seat are arranged in the housing, the movable seat is located at the upper side of the switch and is supported by two springs located at two sides of the switch to be kept at a position away from the switch, wherein, the lugs (L wire lug and N wire lug) are assembled in the housing in a swinging way, springs are respectively supported between the L wire lug and the movable seat and between the L wire lug and the movable seat, when the movable seat receives the pressure from the electrical plug above, the springs can press the L wire lug and the N wire lug to deflect the two lugs, thus the two lugs are contacted with the electrical plug, when the movable seat further moves downwards, the movable seat can touch the switch to close the switch. The electric socket has the advantages that the wiring sheet of the electric socket is positioned in front of the switch, so that the electric connection inserting column is firstly in electric contact with the wiring sheet, and then the electric connection inserting column pushes the movable seat to trigger the switch to be closed so as to connect the wiring sheet, and the electric spark caused by insufficient contact between the electric connection inserting column and the wiring sheet is avoided.

However, the electric socket in the above patent still has certain not enough, and the L line lug, N line lug of this kind of electric socket swing and locate the casing of electric socket, when moving the seat and move down, through compression spring direct to two lugs pressure make two lugs take place to deflect to with connecing the contact of electricity post, the lug assembly of this kind of swing mode takes place to rock easily in the casing, and the action process is unstable, causes the card to die easily and can not effectively deflect to the settlement position, leads to with connecing the contact failure of electricity post, therefore the problem of striking sparks can appear when using for a long time equally.

Therefore, the charging base of the existing ironing device needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem to prior art's current situation, provide one kind and enable to connect the stable ironing equipment's that is close to of electricity electrode charging base who connects the electricity to insert the post and connect the electricity to insert the post and contact and then reduce ironing equipment and place the problem of striking sparks when charging base.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a charging base for an ironing appliance, comprising:

a housing;

the power connection electrode is arranged in the shell and is used for being in electric contact with a power connection plug correspondingly arranged on the ironing equipment main body;

the micro switch is arranged in the shell and used for controlling the on-off of a circuit where the power connection electrode is located;

further comprising:

a sliding seat support;

the sliding seat is arranged on the sliding seat support in a sliding mode and can drive the power connection electrode correspondingly arranged on the sliding seat to be close to the power connection inserting column so as to be in contact with the power connection inserting column;

the first return spring acts on the sliding seat and enables the power connection electrode correspondingly arranged on the sliding seat to always have a trend of being far away from the power connection inserting column;

the rotating frame is rotatably arranged in the shell, can drive the sliding seat to move relative to the sliding seat support in the rotating process of being pressed on the power connection inserting column, and is provided with a trigger part which can continuously rotate along with the rotating frame after the power connection electrode is contacted with the power connection inserting column so as to trigger the microswitch to be closed.

As an improvement, the sliding seat is provided with an extension arm which is obliquely arranged from bottom to top, and the free end of the rotating frame is provided with a pressure lever which can be pressed on the extension arm so as to drive the sliding seat to move towards the direction of the power connection plug. The structure that the pressure rod is in sliding fit with the extending arm arranged in an inclined mode is adopted, the rotating motion of the rotating frame can be effectively converted into the linear motion of the sliding seat, and then the power connection electrode arranged on the sliding seat is driven to be close to the power connection inserting column and then to be in contact with the power connection inserting column.

In order to ensure that the stress of the sliding seat is more uniform when the compression rod is pressed down and the sliding seat can flexibly move, the two extension arms are symmetrically arranged on two sides of the sliding seat respectively, and the two compression rods are corresponding to the two extension arms respectively.

In order to install the rotating frame into the shell, the rotating frame can flexibly rotate in the shell, and rotating shafts extending outwards in the lateral direction are arranged on two sides of the rotating frame and are installed in rotating shaft holes correspondingly formed in the sliding seat support; the micro switch is positioned below the rotating frame, and the triggering part is a rib which extends downwards from the bottom of the rotating frame.

In order to effectively drive the rotating frame to rotate when the power connection inserting column is inserted into the inserting hole of the shell, the shell is provided with the inserting hole for the power connection inserting column to be inserted into, and the top of the free end part of the rotating frame is provided with a guide inclined plane for the power connection inserting column to slide into the inserting hole corresponding to the inserting hole. The arrangement of the guide inclined plane enables the inserting and matching process of the power connection inserting column to be more labor-saving, and the rotating frame can be effectively pressed to rotate.

As an improvement, the sliding seat support is provided with a guide rod, and the sliding seat is correspondingly provided with a through hole for the guide rod to pass through; the first return spring is an expansion spring sleeved on the guide rod, the first end of the expansion spring is abutted against the sliding seat, and the second end of the expansion spring is abutted against the sliding seat support. Due to the arrangement of the structure, the sliding seat can stably move along the guide rod of the sliding seat support through the through hole, and the first return spring is conveniently installed and fixed due to the arrangement of the guide rod.

In order to make the movement of the sliding seat more stable, the number of the guide rods is two, the two guide rods are arranged in parallel, and the number of the extension springs is also two and the extension springs are respectively sleeved on the two guide rods correspondingly.

As an improvement, the sliding seat is provided with a movable groove, the extending direction of the movable groove is consistent with the moving direction of the sliding seat, the electric connecting electrode is a conductive contact piece, the root of the conductive contact piece is movably limited in the movable groove, and the movable groove is also provided with a second return spring which can act on the root of the conductive contact piece and enables the conductive contact piece to have a tendency of approaching to the electric connecting insertion column. Due to the arrangement of the structure, the conductive contact piece can have a certain elastic moving space in the moving groove, and the conductive contact piece can be effectively contacted with the corresponding power connection plug through the compression of the respective second reset spring, and the phenomenon that the ironing equipment main body is placed obliquely to cause poor contact is prevented. More specifically, along with the increase of the pressing angle of the rotating frame and the increase of the sliding distance of the sliding seat, when the power connection electrode and the power connection plug form an interference state, the second reset spring is in an elastic contraction state, when the power connection plug is pulled away, the sliding seat resets, the second reset spring can delay the contact between the power connection electrode and the power connection plug, and the connection between the power connection electrode and the power connection plug is further guaranteed to be disconnected after the micro switch is disconnected.

In order to facilitate the assembly and installation of the conductive contact piece in the movable groove, the movable groove is a through groove which is through from top to bottom and has an opening on the side part, the sliding seat is connected with a spring baffle plate corresponding to the opening position of the movable groove, a positioning column which can extend into the movable groove is arranged on the wall of the spring baffle plate, the conductive contact piece is sleeved on the positioning column through a positioning hole arranged at the root of the conductive contact piece, the second reset spring is sleeved on the positioning column, the first end of the second reset spring is abutted on the conductive contact piece, and the second end of the second reset spring is abutted on the spring baffle plate.

As an improvement, the conductive contact piece comprises an L-pole electric connection piece, an N-pole electric connection piece and a ground electric connection piece, three movable grooves into which the roots of the L-pole electric connection piece, the N-pole electric connection piece and the ground electric connection piece are respectively inserted are correspondingly arranged on the sliding seat, and three second reset springs are respectively and correspondingly arranged in the three movable grooves.

Compared with the prior art, the utility model has the advantages that: the electric connection electrode in the utility model is arranged on the sliding seat, the sliding seat can drive the electric connection electrode to slide back and forth on the sliding seat support, when the ironing device main body is placed on the charging base, the electric connection post of the ironing device main body can drive the rotating frame to rotate, the rotating frame can drive the sliding seat to drive the electric connection electrode to be close to the electric connection post and to be in good contact with the electric connection post in the rotating process, after the electric connection electrode is in contact with the electric connection post, the rotating frame can continue to rotate and touch the micro switch to be closed through the trigger part to switch on the circuit to charge the ironing device, the action process of driving the electric connection electrode to be close to or far away from the electric connection post through the sliding seat is more stable, so that the problem that the electric connection electrode (wiring piece) which is arranged in a swinging way in the prior art is easy to shake can not occur, the problem that the electric connection electrode is blocked can not occur, the electric connection electrode can not, effectively reduced the problem of striking sparks that ironing device appears when placing on charging base.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

figure 3 is a schematic perspective view of the main body of the ironing apparatus;

fig. 4 is a schematic perspective view (in an uncharged state) of the embodiment of the present invention after the housing is omitted;

FIG. 5 is a perspective view of the FIG. 4 in another angular position;

FIG. 6 is an exploded view of FIG. 4;

fig. 7 is a schematic structural diagram of the embodiment of the present invention in a charging state;

fig. 8 is a longitudinal cross-sectional view (in a charged state) of an embodiment of the present invention;

fig. 9 is a longitudinal cross-sectional view (in an uncharged state) of an embodiment of the present invention;

fig. 10 is a schematic perspective view of a sliding seat bracket according to an embodiment of the present invention;

fig. 11 is a schematic perspective view of a sliding seat according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of the slide seat according to the embodiment of the present invention after being turned over;

fig. 13 is a schematic perspective view of a spring baffle according to an embodiment of the present invention;

fig. 14 is a schematic perspective view of a turret according to an embodiment of the present invention;

fig. 15 is a schematic perspective view of the rotating frame according to the embodiment of the present invention after being turned;

fig. 16 is a schematic perspective view of a power connection electrode 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.

Referring to fig. 1 to 16, a charging base of an ironing apparatus includes a housing 10, a power receiving electrode 20, a micro switch 11, a sliding seat support 30, a sliding seat 40, a first return spring 50 and a rotating frame 60, wherein the housing 10 includes an upper housing 101 and a lower housing 102 that can be fastened up and down, a jack 12 for inserting the power receiving post 21 of the ironing apparatus main body 22 is disposed on the top surface of the upper housing 101, when the ironing apparatus main body 22 is just placed on the charging base, a circuit of the power receiving electrode 20 and the power receiving post 21 is not conducted, after the two are completely contacted, a preset micro switch 11 is triggered to be closed to charge the ironing apparatus main body 22, when the ironing apparatus main body 22 leaves the charging base, the micro switch 11 is cut off, and after the circuit is disconnected, the power receiving electrode 20 is separated from the power receiving post 21, thereby preventing an instant fire.

Referring to fig. 4 and 6, the sliding seat support 30 is disposed in the housing 10, the sliding seat 40 is slidably disposed on the sliding seat support 30, the power connection electrodes 20 are three conductive contact pieces connected to the sliding seat 40, which are respectively an L-pole power connection piece, an N-pole power connection piece and a ground power connection piece, and when the sliding seat 40 moves relative to the sliding seat support 30, the three conductive contact pieces can move with the sliding seat 40 to approach the power connection plug 21 and further contact the power connection plug 21.

Referring to fig. 10 to 12, in order to smoothly slide the sliding seat 40 on the sliding seat bracket 30, the sliding seat bracket 30 is provided with the guide rod 32, and the sliding seat 40 is correspondingly provided with the through hole 42 for the guide rod 32 to pass through, such that the sliding seat 40 can smoothly move along the guide rod 32 of the sliding seat bracket 30 through the through hole. The first return spring 50 in this embodiment is an extension spring sleeved on the guide rod 32, a first end of the extension spring abuts against the sliding seat 40, a second end of the extension spring abuts against the sliding seat support 30, and under the elastic action of the extension spring, the sliding seat 40 can drive the conductive contact piece to be separated from the power receiving plug 21 and return to the initial position. In order to make the movement of the sliding seat 40 more stable, there are two guide rods 32, two guide rods 32 are arranged in parallel, and there are two extension springs respectively sleeved on the two guide rods 32.

Referring to fig. 4, 5 and 10, two rotation shaft holes 31 are formed on the sliding seat support 30, rotation shafts extending laterally are arranged on two sides of the rotating frame 60, the two rotation shafts are installed in the rotation shaft holes 31 on the sliding seat support 30, the rotating frame 60 is located above the sliding seat 40, an extension arm 41 arranged obliquely from bottom to top is arranged on the sliding seat 40, and a pressing rod 61 capable of pressing on the extension arm 41 to drive the sliding seat 40 to move towards the direction of the power receiving plug-in post 21 is arranged on the free end of the rotating frame 60. In order to ensure that the sliding seat 40 is stressed more uniformly when the compression rod 61 is pressed down and to ensure that the sliding seat 40 can move flexibly, two extension arms 41 are arranged on two sides of the sliding seat 40 symmetrically and respectively, and two compression rods 61 are arranged and respectively correspond to the two extension arms 41. In this embodiment, the structure that the pressing rod 61 is in sliding fit with the extending arm 41 that is obliquely arranged is adopted, so that the rotation motion of the rotating frame 60 can be effectively converted into the linear motion of the sliding seat 40, and the power connection electrode 20 arranged on the sliding seat 40 is driven to be close to the power connection plug 21 and then to be in contact with the power connection plug 21.

Referring to fig. 4 and 10, in order to effectively drive the rotating frame 60 to rotate when the power receiving post 21 is inserted into the insertion hole 12 of the housing 10, the housing 10 is provided with the insertion hole 12 into which the power receiving post 21 is inserted, and the top of the free end of the rotating frame 60 is provided with a guiding inclined surface 64 corresponding to the position of the insertion hole 12, into which the power receiving post 21 slides. Under the guide of the guide inclined plane 64, the inserting and assembling process of the power connecting inserting column 21 is more labor-saving, and the rotating frame 60 can be effectively pressed to rotate.

Referring to fig. 5, the micro switch 11 is disposed on the sliding seat support 30 and located below the rotating rack 60, specifically, the micro switch 11 is electrically connected to the corresponding PCB 80, so as to control the on/off of the circuit where the power connection electrode 20 is located, and further specifically, the rotating rack 60 has a trigger portion capable of touching the micro switch 11 to close in the rotating process, where the trigger portion in this embodiment is a rib 63 extending downward from the bottom of the rotating rack 60, and the rib 63 is capable of approaching the micro switch 11 in the downward rotating process along with the rotating rack 60 to trigger the micro switch 11, so as to connect the circuit of the power connection electrode 20.

Referring to fig. 11 and 12, in order to conveniently mount the conductive contact pieces on the sliding seat 40 and make each conductive contact piece well contact with the corresponding power receiving post 21 when moving along with the sliding seat 40, three movable slots 43 for inserting the root portions of the three conductive contact pieces are correspondingly arranged on the sliding seat 40, the three movable slots 43 are sequentially arranged on the sliding seat 40 at intervals, the movable slots 43 in this embodiment are through slots with openings 430 at the sides, the sliding seat 40 is connected with a spring baffle 71 corresponding to the openings 430 of the movable slots 43, the wall of the spring baffle 71 is provided with positioning posts 710, the extending direction of the positioning posts 710 is consistent with the extending direction of the guide rods 32 on the sliding seat support 30, when the spring baffle 71 is assembled on the sliding seat 40, the positioning posts 710 can extend into the movable slots 43 and make the end portions abut against the sliding seat 40, the conductive contact pieces are provided with positioning holes 200 for the positioning posts 710 to pass through, that is, the conductive contact piece can be inserted on the positioning post 710 and be limited in the movable slot 43 of the sliding seat 40. The movable slot 43 of the sliding seat 40 is further provided with a second return spring 70, which can act on the root of the conductive contact piece and make the conductive contact piece have a tendency to approach the power connection plug 21, specifically, the second return spring 70 is also an expansion spring, which is sleeved on the positioning column 710 and makes the first end abut against the conductive contact piece, and makes the second end abut against the spring baffle 71. The conductive contact piece in this embodiment has a certain elastic moving space in the moving slot 43, and can effectively contact with the corresponding power receiving post 21 under the elastic action of the second return spring 70, and prevent the poor contact caused by the deflection of the ironing device main body 22.

Referring to fig. 13, two positioning posts 710 are disposed on the spring retaining plate 71 in the vertical direction corresponding to each movable slot 43, and correspondingly, two positioning holes 200 are disposed on the corresponding conductive contact pieces, the root portions of the conductive contact pieces are sleeved on the two positioning posts 710 and are limited in the movable slots 43, and the head portions of the conductive contact pieces extend upward and bend toward the power receiving plug 21. Such a structural arrangement enables the conductive contact piece to be more stably confined in the movable groove 43, avoiding the conductive contact piece from deflecting or wobbling when moving in the movable groove 43.

Referring to fig. 10 to 11, the spring retainer 71 is connected to the sliding seat 40 by a snap fit, specifically, the bottom of the spring retainer 71 is defined on the first latch 45 at the bottom of the sliding seat 40 by a first snap slot 73, and the top of the spring retainer 71 is defined on the second latch 44 at the upper part of the sliding seat 40 by a second snap slot 72.

The charging process of the charging base of the ironing device of this embodiment:

when the ironing device main body 22 is placed on the charging base, the power receiving plug 21 on the ironing device main body 22 can be inserted into the jack 12 of the housing 10 of the charging base, and in the process of inserting the power receiving plug 21 into the jack 12, the power receiving plug 21 can drive the rotating frame 60 to rotate downward, and the pressure lever 61 is pressed on the extending arm 41 which is obliquely arranged on the sliding seat 40 to drive the sliding seat 40 to move towards the power receiving plug 21, and when the conductive contact piece which is arranged on the sliding seat 40 is completely contacted with the power receiving plug 21, the rotating frame 60 continues to rotate downward, and the rib 63 which is arranged at the bottom triggers the micro switch 11 to be closed to switch on the circuit to charge the ironing device, which is detailed in fig. 7 and 8. When the ironing device main body 22 is taken away from the charging base, under the action of the first return spring 50, the sliding seat 40 is far away from the power connection inserting column 21 to drive the rotating frame 60 to rotate upwards, the rib 63 at the bottom of the rotating frame 60 firstly loosens the micro switch 11 to break the circuit, at this time, the conductive contact piece still well contacts with the power connection inserting column 21, then the sliding seat 40 continues to move, the conductive contact piece on the sliding seat 40 is separated from the power connection inserting column, the ironing device main body 22 is taken down to complete charging, and detailed pictures in fig. 4 and fig. 9 are shown. The charging socket in the embodiment can effectively avoid the phenomenon that the electric plug 21 and the conductive contact piece on the base are ignited due to insufficient contact in the process that the ironing device main body 22 is placed on the charging base or taken down from the charging base, thereby improving the use safety and prolonging the service life of the product.

Claims (10)

1. A charging base for an ironing appliance, comprising:

a housing (10);

the power connection electrode (20) is arranged in the shell (10) and is used for being in electric contact with a power connection plug column (21) correspondingly arranged on the ironing equipment main body;

the microswitch (11) is arranged in the shell (10) and is used for controlling the on-off of a circuit where the power connection electrode (20) is positioned;

it is characterized by also comprising:

a slide mount bracket (30);

the sliding seat (40) is arranged on the sliding seat support (30) in a sliding mode and can drive the power connection electrode (20) correspondingly arranged on the sliding seat (40) to be close to the power connection plug post (21) so as to be in contact with the power connection plug post (21);

the first return spring (50) acts on the sliding seat (40) and enables the power connection electrode (20) correspondingly arranged on the sliding seat (40) to always have a trend of being far away from the power connection plug column (21);

the rotating frame (60) is rotatably arranged in the shell (10), can drive the sliding seat (40) to move relative to the sliding seat support (30) in the rotating process of being pressed on the power connection inserting column (21) and has a trigger part which can continuously rotate along with the rotating frame (60) after the power connection electrode (20) is contacted with the power connection inserting column (21) so as to trigger the microswitch (11) to be closed.

2. The charging base of an ironing apparatus according to claim 1, characterized in that: the sliding seat (40) is provided with an extension arm (41) which is obliquely arranged from bottom to top, and the free end of the rotating frame (60) is provided with a pressure lever (61) which can be pressed on the extension arm (41) so as to drive the sliding seat (40) to move towards the direction of the power connection inserting column (21).

3. The ironing appliance charging base according to claim 2, characterized in that: the number of the extension arms (41) is two, the two extension arms are symmetrically arranged on two sides of the sliding seat (40), and the number of the compression bars (61) is two and corresponds to the two extension arms (41).

4. The ironing appliance charging base according to claim 2, characterized in that: two sides of the rotating frame (60) are provided with rotating shafts (62) which extend outwards in the lateral direction and are arranged in rotating shaft holes (31) correspondingly arranged on the sliding seat bracket (30);

the microswitch (11) is positioned below the rotating frame (60), and the trigger part is a rib (63) extending downwards from the bottom of the rotating frame (60).

5. The charging base for ironing apparatuses according to any one of claims 1 to 4, characterized in that: the shell (10) is provided with a jack (12) for the insertion of the electric plug column (21), and the top of the free end of the rotating frame (60) is provided with a guide inclined plane (64) for the electric plug column (21) to slide into the jack (12) corresponding to the position of the jack (12).

6. The charging base of an ironing apparatus according to claim 1, characterized in that: the sliding seat support (30) is provided with a guide rod (32), and the sliding seat (40) is correspondingly provided with a through hole (42) for the guide rod (32) to pass through;

the first return spring (50) is an extension spring sleeved on the guide rod (32), the first end of the extension spring is abutted against the sliding seat (40), and the second end of the extension spring is abutted against the sliding seat support (30).

7. The ironing appliance charging base according to claim 6, characterized in that: the guide rods (32) are arranged in parallel, the two guide rods (32) are arranged in parallel, and the two extension springs are respectively sleeved on the two guide rods (32) correspondingly.

8. The charging base for ironing apparatuses according to any one of claims 1 to 4, characterized in that: the sliding seat (40) is provided with a movable groove (43) the extending direction of which is consistent with the moving direction of the sliding seat (40), the electric connecting electrode (20) is a conductive contact piece, the root part of the conductive contact piece is movably limited in the movable groove (43), and the movable groove (43) is also provided with a second return spring (70) which can act on the root part of the conductive contact piece and enables the conductive contact piece to have the tendency of approaching the electric connecting inserting column (21).

9. The ironing appliance charging base as claimed in claim 8, characterized in that: the movable groove (43) is a through groove which is vertically communicated and provided with an opening (430) on the side part, the sliding seat (40) is connected with a spring baffle (71) corresponding to the position of the opening (430) of the movable groove (43), a positioning column (710) which can stretch into the movable groove (43) is arranged on the wall of the spring baffle (71), the conductive contact piece is sleeved on the positioning column (710) through a positioning hole (200) arranged at the root of the conductive contact piece, the second reset spring (70) is sleeved on the positioning column (710) and enables the first end to be abutted on the conductive contact piece, and the second end is abutted on the spring baffle (71).

10. The ironing appliance charging base as claimed in claim 9, characterized in that: the conductive contact piece comprises an L-pole electric connection piece, an N-pole electric connection piece and a ground electric connection piece, three movable grooves (43) for the roots of the L-pole electric connection piece, the N-pole electric connection piece and the ground electric connection piece to be inserted are correspondingly formed in the sliding seat (40), and the number of the second reset springs (70) is three and is correspondingly formed in the three movable grooves (43).

Images