Safe and reliable split water cup

Abstract

A safe and reliable split water cup comprises a cup body part and a cup base part, a coupling plug is arranged on the cup body part in a rotating mode, a coupling socket is arranged on the cup base part, the coupling plug and the coupling socket are connected in an inserted mode to form conductive contact, and a plurality of conducting strips distributed in an annular mode are arranged on the cup body part. A plurality of conductive parts and insulating parts are annularly arranged on the periphery of the coupling plug, the conductive parts and the insulating parts are arranged at intervals, a rotary locking part is arranged between the cup body part and the cup base part, and the cup body part is rotationally locked or unlocked on the cup base part through the rotary locking part. When the cup body part is rotationally locked on the cup base part, the conducting strip rotates to the position of the conducting piece, the conducting strip and the conducting piece are in mutual conductive contact, and when the cup body part is rotationally unlocked on the cup base part, the conducting strip rotates to the position of the insulating part. According to the split water cup, the risk of electric shock does not exist when a user rotates the cup body part, and the use safety of the split water cup is improved.

Description

Technical Field

[0001] This utility model relates to the field of water cup technology, and in particular to a safe and reliable split water cup. Background Technology

[0002] Commercially available detachable water bottles generally consist of a cup body and a base. The cup body and base are connected by a coupler and locked together by a snap-lock mechanism. During installation, the cup body and base are first plugged in using the coupler, and then the cup body is rotated to lock the cup body and base together using the snap-lock mechanism. However, once the cup body and base are connected by the coupler, the circuit is already connected. If there is a leakage in the detachable water bottle when rotating the cup body, there may be a risk of electric shock.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a safe and reliable split water cup that is simple in structure, safe and reliable, has a good user experience, is easy to assemble and disassemble, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A safe and reliable split-type water cup designed for this purpose includes a cup body and a cup base. Its features include: a coupling plug rotatably mounted on the cup body, and a coupling socket mounted on the cup base; the coupling plug and coupling socket are plugged into each other to form conductive contact; several annularly distributed conductive plates are mounted on the cup body; several conductive elements and insulating parts are annularly arranged around the coupling plug, with the conductive elements and insulating parts spaced apart; a rotation locking part is provided between the cup body and the cup base; the cup body is rotatably locked or unlocked onto the cup base by the rotation locking part; when the cup body is rotatably locked onto the cup base, the conductive plates rotate to the position of the conductive elements, and the conductive plates and conductive elements make conductive contact; when the cup body is rotatably unlocked onto the cup base, the conductive plates rotate to the position of the insulating parts; an electric heating device is installed inside the cup body, and the conductive plates are electrically connected to the electric heating device.

[0006] A grounding plate is provided on the cup body, which is located between two conductive plates. A grounding component is provided on the edge of the coupling plug, which is located between one of the conductive components and the insulating part. The width of the grounding component is greater than the width of the conductive component. When the cup body is rotated to lock or unlock on the cup base, the grounding plate and the grounding component remain in contact.

[0007] The coupling plug has several electrical terminals arranged in a ring, and the coupling socket has several electrical holes arranged in a ring. The electrical terminals and electrical holes are connected to each other, and the electrical terminals are connected to the conductive plates.

[0008] The coupling plug is provided with a grounding terminal between two plug-in terminals, the coupling socket is provided with a grounding hole between two plug-in holes, the grounding terminal and the grounding hole are inserted with each other, the grounding terminal and the grounding sheet are connected with each other, and the length of the grounding terminal is greater than the length of the plug-in terminal.

[0009] The conductive sheet is provided with a contact tip, the coupling plug is provided with a plurality of accommodating grooves in the periphery, the conductive piece is located in the accommodating groove, and the contact tip is rotated into the accommodating groove and in conductive contact with the conductive piece when the conductive sheet is rotated to the position of the conductive piece; the two sides of the contact tip are respectively provided with first guide inclined surfaces, and the two sides of the accommodating groove are respectively provided with second guide inclined surfaces; the contact tip is rotated out of the accommodating groove under the action of external force through the cooperation of the first guide inclined surfaces and the second guide inclined surfaces.

[0010] The conductive sheet is provided with a contact tip, the coupling plug is provided with a plurality of accommodating grooves in the periphery, the conductive piece is located in the accommodating groove, and the contact tip is rotated into the accommodating groove and in conductive contact with the conductive piece when the conductive sheet is rotated to the position of the conductive piece; the two sides of the contact tip are respectively provided with first guide inclined surfaces, and the two sides of the accommodating groove are respectively provided with second guide inclined surfaces; the contact tip is rotated out of the accommodating groove under the action of external force through the cooperation of the first guide inclined surfaces and the second guide inclined surfaces.

[0011] The coupling plug is located at the center of the cup body part, and the coupling socket is located at the center of the cup seat part.

[0012] The rotating locking part includes a plurality of locking blocks arranged in a ring on the cup body part and a plurality of mounting grooves arranged in a ring on the cup seat part, the mounting groove includes a locking groove and an unlocking groove which are in communication with each other, and the locking block is rotated into or out of the locking groove through the unlocking groove to enable the cup body part to be locked or unlocked on the cup seat part.

[0013] The cup body part includes a cup body, an electric heating device, a fixing plate, a first support and a lower cover, the electric heating device is fixed inside the cup body, the fixing plate is fixed at the bottom of the electric heating device, the fixing plate, the first support and the lower cover are connected into one body, the lower cover covers the bottom of the cup body, a rotating groove is formed between the first support and the lower cover, and a convex edge is arranged on the outer side of the coupling plug and is arranged in the rotating groove in a relative rotating manner.

[0014] The electric heating device includes a heating disc, a temperature sensor and a temperature controller arranged on the heating disc, and the heating disc, the temperature sensor and the temperature controller are electrically connected to the corresponding conductive sheets respectively.

[0015] The cup seat part is provided with an electrical chamber inside, the electrical chamber is provided with a power supply board, a control board, a battery module and a strong current plug, and the power supply board is electrically connected to the control board, the battery module, the strong current plug and the coupling socket respectively.

[0016] The cup seat part comprises a base, an upper cover and a second support, the upper cover covers the top of the base, an electrical chamber is formed between the base and the upper cover, the second support is located in the electrical chamber, the rotary locking part is arranged between the upper cover and the lower cover, the second support is fixed on the base, the upper cover is fixed on the second support, and the coupling socket is fixed on the upper cover.

[0017] The upper ends of the plug-in hole and the grounding hole are respectively provided with sealing rubber pieces, the sealing rubber pieces are provided with slits in the middle, the plug-in terminal passes through the sealing rubber piece through the slit and is inserted into the plug-in hole, and the grounding terminal passes through the sealing rubber piece through the slit and is inserted into the grounding hole.

[0018] The utility model discloses a split water cup which is provided with a plurality of annular conductive sheets on the cup body part, a plurality of conductive pieces and insulating parts are annularly arranged on the periphery of the coupling plug, when the cup body part and the cup seat part are mutually plugged by the coupling plug and the coupling socket, the conductive pieces are located in the position of the insulating parts, the split water cup is not electrified, when the cup body part is rotated and is locked in the cup seat part by the rotary locking part, the conductive sheets are rotated to the position of the conductive pieces, the conductive sheets and the conductive pieces are in conductive contact with each other, the split water cup can be electrified, the user is not at risk of electric shock when the cup body part is rotated, and the safety of the split water cup is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view of the split water cup in an embodiment of the utility model.

[0020] Figure 2 It is an exploded structural schematic view of the split water cup in an embodiment of the utility model.

[0021] Figure 3 It is an assembly structural schematic view of the coupling plug and the coupling socket in an embodiment of the utility model.

[0022] Figure 4 It is an assembly exploded view of the coupling plug and the coupling socket in an embodiment of the utility model.

[0023] Figure 5 It is an exploded structural schematic view of the cup body part in an embodiment of the utility model.

[0024] Figure 6 It is an exploded structural schematic view of the cup seat part in an embodiment of the utility model.

[0025] Figure 7 It is an exploded structural sectional view of the coupling plug, the first support and the lower cover in an embodiment of the utility model.

[0026] Figure 8 It is an assembly sectional view of the coupling plug and the coupling socket in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the drawings and examples.

[0028] Referring to Figures 1-8 , the safe and reliable split water cup comprises a cup body part 1 and a cup seat part 2, a coupling plug 3 is rotationally arranged on the cup body part 1, a coupling socket 4 is arranged on the cup seat part 2, the coupling plug 3 and the coupling socket 4 are mutually plugged and form conductive contact, a plurality of annularly distributed conductive sheets 5 are arranged on the cup body part 1, a plurality of conductive pieces 6 and insulating parts 7 are annularly arranged on the periphery of the coupling plug 3, the conductive pieces 6 and the insulating parts 7 are mutually spaced, a rotation locking part is arranged between the cup body part 1 and the cup seat part 2, the cup body part 1 is rotationally locked or unlocked on the cup seat part 2 through the rotation locking part, when the cup body part 1 is rotationally locked on the cup seat part 2, the conductive sheets 5 are rotated to the positions of the conductive pieces 6, and the conductive sheets 5 and the conductive pieces 6 are mutually conductively contacted, at this time, the split water cup is electrified, when the cup body part 1 is rotationally unlocked on the cup seat part 2, the conductive sheets 5 are rotated to the positions of the insulating parts 7, at this time, the split water cup is not electrified, in addition, when the cup body part 1 starts to be rotationally unlocked, the conductive sheets 5 are separated from the conductive pieces 6, at this time, the split water cup has already been de-energized; an electric heating device is arranged in the cup body part 1, and the conductive sheets 5 are electrically connected to the electric heating device.

[0029] A grounding sheet 8 is arranged on the cup body part 1, the grounding sheet 8 is located between two conductive sheets 5, a grounding piece 9 is arranged on the edge of the coupling plug 3, the grounding piece 9 is located between one conductive piece 6 and one insulating part 7, the width of the grounding piece 9 is greater than the width of the conductive piece 6, the width dimension of the grounding piece 9 exceeds the rotation angle range of the cup body part 1 in the locked and unlocked states, when the cup body part 1 is rotationally locked or unlocked on the cup seat part 2, the grounding sheet 8 keeps contact with the grounding piece 9, and then when the coupling plug 3 and the coupling socket 4 are mutually plugged, the split water cup always keeps grounding, and then the risk of electric shock caused by the leakage of the split water cup is prevented, in combination with the structure of the conductive sheets 5, the conductive pieces 6 and the insulating parts 7, a double protection effect is achieved; the conductive sheets 5 and the grounding sheet 8 are spring sheets.

[0030] A plurality of plug-in terminals 10 are annularly arranged on the coupling plug 3, a plurality of plug-in holes 11 are annularly arranged on the coupling socket 4, the plug-in terminals 10 and the plug-in holes 11 are mutually plugged, the plug-in terminals 10 and the conductive sheets 5 are mutually riveted and form conductive contact; the plug-in terminals 10 are electrodes.

[0031] The coupling plug 3 is provided with a grounding terminal 12 between two plug-in terminals 10, the coupling socket 4 is provided with a grounding hole 13 between two plug-in holes 11, the grounding terminal 12 and the grounding hole 13 are inserted with each other, the grounding terminal 12 and the grounding sheet 8 are riveted with each other to realize grounding, the length of the grounding terminal 12 is greater than the length of the plug-in terminal 10, so that when the coupling plug 3 and the coupling socket 4 are inserted with each other, the grounding is realized first, and then the power is supplied, further improving the safety of the split water cup.

[0032] The conductive sheet 5 is provided with a contact tip 14, the coupling plug 3 is provided with a plurality of accommodating grooves 15 around the periphery, the conductive piece 6 is located in the accommodating groove 15, when the conductive sheet 5 rotates to the position of the conductive piece 6, the contact tip 14 rotates into the accommodating groove 15 and is in conductive contact with the conductive piece 6; the two sides of the contact tip 14 are respectively provided with first guide inclined surfaces 16, the two sides of the accommodating groove 15 are respectively provided with second guide inclined surfaces 17, the contact tip 14 rotates out of the accommodating groove 15 under the action of external force through the cooperation of the first guide inclined surfaces 16 and the second guide inclined surfaces 17, this structure can prompt the user whether the conductive sheet 5 rotates to the position of the conductive piece 6 and whether the conductive sheet 5 leaves the position of the conductive piece 6, and improve the hand feeling of the user when rotating the cup body part 1.

[0033] The insulating part 7 is an insulating groove, when the conductive sheet 5 rotates to the position of the insulating part 7, the contact tip 14 rotates into the insulating groove, the two sides of the insulating groove are respectively provided with third guide inclined surfaces 18, the contact tip 14 rotates out of the insulating groove under the action of external force through the cooperation of the first guide inclined surfaces 16 and the third guide inclined surfaces 18, this structure can prompt the user whether the conductive sheet 5 rotates to the position of the insulating groove and whether the conductive sheet 5 leaves the position of the insulating groove, and improve the hand feeling of the user when rotating the cup body part 1.

[0034] The coupling plug 3 is located at the center of the cup body part 1, and the coupling socket 4 is located at the center of the cup seat part 2.

[0035] The rotating locking part comprises a plurality of locking blocks 19 arranged annularly on the cup body part 1 and a plurality of mounting grooves arranged annularly on the cup seat part 2, the mounting grooves comprising intercommunicating locking grooves 20 and unlocking grooves 21, the locking blocks 19 being screwed into or out of the locking grooves 20 through the unlocking grooves 21 to enable the cup body part 1 to be locked or unlocked on the cup seat part 2; when the cup body part 1 and the cup seat part 2 are mounted on each other, only the locking blocks 19 need to be aligned with the unlocking grooves 21, then the locking blocks 19 are inserted into the unlocking grooves 21, and the cup body part 1 is rotated to enable the locking blocks 19 to be screwed into the locking grooves 20, so that the locking and mounting are completed; when the cup body part 1 and the cup seat part 2 are dismounted from each other, only the cup body part 1 needs to be rotated to enable the locking blocks 19 to be screwed out of the locking grooves 20 and onto the unlocking grooves 21, then the cup body part 1 is lifted, so that the dismounting is completed; the locking blocks 19 of the embodiment can be rotated by a maximum of 22.5°, and correspondingly, the conductive sheet 5 and the grounding sheet 8 can also be rotated by a maximum of 22.5°.

[0036] The cup body part 1 comprises a cup body 22, an electric heating device, a fixed plate 24, a first support 25 and a lower cover 26, the electric heating device comprising a heating disc 23 and a temperature sensor and a temperature controller arranged on the heating disc 23, the heating disc 23 being welded and fixed inside the cup body 22, the fixed plate 24 being fixed by screws on the bottom of the heating disc 23, the fixed plate 24, the first support 25 and the lower cover 26 being connected into an integrated body by screws, the lower cover 26 being covered on the bottom of the cup body 22, a rotating groove 27 being formed between the first support 25 and the lower cover 26, a convex edge 28 being arranged on the outer side of the coupling plug 3, the convex edge 28 being relatively rotatably arranged in the rotating groove 27, so that the coupling plug 3 is relatively rotatably arranged on the cup body part 1, the convex edge 28 being limitingly arranged up and down in the rotating groove 27, so that the coupling plug 3 is positionally arranged up and down on the cup body part 1; the heating disc 23, the temperature sensor and the temperature controller are respectively electrically connected to the corresponding conductive sheets 5 by wires, and the heating disc 23, the temperature sensor and the temperature controller are respectively electrically connected to the corresponding grounding sheets 8 by wires; the fixed plate 24, the first support 25 and the lower cover 26 are arranged in sequence up and down, and the locking blocks 19 are annularly distributed on the inner side of the lower cover 26; a plurality of positioning grooves 37 are annularly distributed on the first support 25, the conductive sheets 5 and the grounding sheets 8 are respectively mounted in the corresponding positioning grooves 37, the first support 25 is further provided with a positioning column 38, the positioning column 38 is located in the positioning groove 37, and the conductive sheets 5 and the grounding sheets 8 are respectively provided with positioning notches 39, the positioning column 38 is positioned and inserted into the positioning notches 39, so that the conductive sheets 5 and the grounding sheets 8 are respectively positioned in the corresponding positioning grooves 37.

[0037] The upper ends of the plug hole 11 and the grounding hole 13 are respectively provided with sealing rubber 40, the sealing rubber 40 is provided with a gap 41 in the middle, the plug terminal 10 is inserted into the plug hole 11 through the gap 41 of the sealing rubber 40, the grounding terminal 12 is inserted into the grounding hole 13 through the gap 41 of the sealing rubber 40, the sealing rubber 40 can seal the gap between the plug terminal 10 and the plug hole 11 and the gap between the grounding terminal 12 and the grounding hole 13, and has a waterproof effect; the sealing rubber 40 is silica gel.

[0038] The cup seat part 2 is internally provided with an electrical chamber 29, the electrical chamber 29 is provided with a power board 30, a control board 31, a battery module 32 and a strong current plug 33, the power board 30 is electrically connected with the control board 31, the battery module 32, the strong current plug 33 and the coupling socket 4, the strong current plug 33 is used for connecting a 220V external power supply and providing strong current to the heating disc 23 to realize a heating function, and the battery module 32 is used for providing weak current to the heating disc 23 to realize a heat preservation function.

[0039] The cup seat part 2 comprises a base 34, an upper cover 35 and a second support 36, the upper cover 35 covers the top of the base 34, the base 34 and the upper cover 35 form the electrical chamber 29, the second support 36 is located in the electrical chamber 29, the rotary locking part is arranged between the upper cover 35 and the lower cover 26, the mounting grooves are annularly distributed on the outer side of the lower cover 26, the second support 36 is fixed on the base 34 through screws, the upper cover 35 is fixed on the second support 36 through screws, a plurality of mounting holes 42 are annularly arranged on the coupling socket 4, a plurality of mounting columns 43 are annularly arranged on the upper cover 35, the mounting columns 43 are inserted into the mounting holes 42, so that the coupling socket 4 is fixed on the upper cover 35; the power board 30 and the battery module 32 are fixed on the second support 36, the strong current plug 33 is arranged on the power board 30, and the control board 31 is fixed on the base 34.

[0040] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safe and reliable split water cup, comprising a cup body part (1) and a cup base part (2), characterized in that: The cup body part (1) is provided with a coupling plug (3) rotatably arranged thereon, and the cup base part (2) is provided with a coupling socket (4); the coupling plug (3) and the coupling socket (4) are mutually inserted and form conductive contact; the cup body part (1) is provided with a plurality of annularly distributed conductive sheets (5); the coupling plug (3) is annularly provided with a plurality of conductive members (6) and insulating portions (7) at the periphery; the conductive members (6) and the insulating portions (7) are arranged at intervals; the cup body part (1) and the cup base part (2) are provided with a rotation locking portion; the cup body part (1) is rotatably locked or unlocked on the cup base part (2) through the rotation locking portion; when the cup body part (1) is rotatably locked on the cup base part (2), the conductive sheets (5) are rotated to the positions of the conductive members (6) and the conductive sheets (5) and the conductive members (6) are in mutual conductive contact; when the cup body part (1) is rotatably unlocked on the cup base part (2), the conductive sheets (5) are rotated to the positions of the insulating portions (7); the cup body part (1) is provided with an electric heating device, and the conductive sheets (5) are electrically connected to the electric heating device.

2. The safe and reliable split water cup according to claim 1, wherein: The cup body part (1) is provided with a grounding sheet (8) between two of the conductive sheets (5); the coupling plug (3) is provided with a grounding member (9) at the edge; the grounding member (9) is between one of the conductive members (6) and the insulating portion (7); the width of the grounding member (9) is greater than the width of the conductive member (6); when the cup body part (1) is rotatably locked or unlocked on the cup base part (2), the grounding sheet (8) and the grounding member (9) are in contact.

3. The safe and reliable split water cup according to claim 2, characterized in that: The coupling plug (3) is annularly provided with a plurality of plug-in terminals (10); the coupling socket (4) is annularly provided with a plurality of plug-in holes (11); the plug-in terminals (10) and the plug-in holes (11) are mutually inserted; the plug-in terminals (10) and the conductive sheets (5) are mutually connected.

4. The safe and reliable split water cup according to claim 3, characterized in that: The coupling plug (3) is provided with a grounding terminal (12) between two of the plug-in terminals (10); the coupling socket (4) is provided with a grounding hole (13) between two of the plug-in holes (11); the grounding terminal (12) and the grounding hole (13) are mutually inserted; the grounding terminal (12) and the grounding sheet (8) are mutually connected; the length of the grounding terminal (12) is greater than the length of the plug-in terminal (10).

5. The safe and reliable split water cup according to claim 1, wherein: The conductive sheet (5) is provided with a contact tip (14); the coupling plug (3) is annularly provided with a plurality of accommodating grooves (15) at the periphery; the conductive member (6) is located in the accommodating groove (15); when the conductive sheet (5) is rotated to the position of the conductive member (6), the contact tip (14) is rotated into the accommodating groove (15) and is in mutual conductive contact with the conductive member (6); the two sides of the contact tip (14) are respectively provided with first guide inclined surfaces (16); the two sides of the accommodating groove (15) are respectively provided with second guide inclined surfaces (17); under the action of an external force, the contact tip (14) is rotated out of the accommodating groove (15) through the cooperation of the first guide inclined surfaces (16) and the second guide inclined surfaces (17); The insulating part (7) is an insulating groove, when the conductive sheet (5) rotates to the position of the insulating part (7), the contact tip (14) rotates into the insulating groove, and the two sides of the insulating groove are respectively provided with third guide inclined surfaces (18), and the contact tip (14) rotates out of the insulating groove under the action of external force through the cooperation of the first guide inclined surface (16) and the third guide inclined surface (18).

6. The safe and reliable split water cup according to claim 1, wherein: The coupling plug (3) is located at the center of the cup body part (1), and the coupling socket (4) is located at the center of the cup seat part (2).

7. The safe and reliable split water cup of claim 1, wherein: The rotation locking part comprises a plurality of locking blocks (19) arranged in a ring on the cup body part (1) and a plurality of mounting grooves arranged in a ring on the cup seat part (2), the mounting groove comprises a locking groove (20) and an unlocking groove (21) which are in communication with each other, the locking block (19) is screwed into or out of the locking groove (20) through the unlocking groove (21), so that the cup body part (1) is rotationally locked or unlocked on the cup seat part (2).

8. The safe and reliable split water cup according to claim 2, wherein: The cup body part (1) comprises a cup body (22), an electric heating device, a fixing plate (24), a first support (25) and a lower cover (26), the electric heating device is fixed inside the cup body (22), the fixing plate (24) is fixed at the bottom of the electric heating device, the fixing plate (24), the first support (25) and the lower cover (26) are connected into one body, the lower cover (26) covers the bottom of the cup body (22), a rotating groove (27) is formed between the first support (25) and the lower cover (26), the outer side of the coupling plug (3) is provided with a convex edge (28), and the convex edge (28) is relatively rotatably arranged on the rotating groove (27); The electric heating device comprises a heating disc (23), a temperature sensor and a temperature controller arranged on the heating disc (23), and the heating disc (23), the temperature sensor and the temperature controller are electrically connected to the corresponding conductive sheets (5) respectively.

9. The safe and reliable split water cup according to claim 8, characterized in that: The cup seat part (2) is internally provided with an electrical chamber (29), the electrical chamber (29) is internally provided with a power board (30), a control board (31), a battery module (32) and a strong current plug (33), and the power board (30) is electrically connected to the control board (31), the battery module (32), the strong current plug (33) and the coupling socket (4) respectively. The cup seat part (2) comprises a base (34), an upper cover (35) and a second support (36), the upper cover (35) covers the top of the base (34), the electrical chamber (29) is formed between the base (34) and the upper cover (35), the second support (36) is located in the electrical chamber (29), the rotation locking part is arranged between the upper cover (35) and the lower cover (26), the second support (36) is fixed on the base (34), the upper cover (35) is fixed on the second support (36), and the coupling socket (4) is fixed on the upper cover (35).

10. The safe and reliable split water cup according to claim 4, characterized in that: The upper ends of the plug-in hole (11) and the grounding hole (13) are respectively provided with sealing rubber pieces (40), the sealing rubber pieces (40) are provided with cracks (41) in the middle, the plug-in terminal (10) is inserted into the plug-in hole (11) after passing through the sealing rubber piece (40) through the crack (41), and the grounding terminal (12) is inserted into the grounding hole (13) after passing through the sealing rubber piece (40) through the crack (41).

Images