CN214254850U

CN214254850U - Explosion-proof power supply clamp of hand warmer

Info

Publication number: CN214254850U
Application number: CN202120435640.0U
Authority: CN
Inventors: 肖玉容
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-28
Filing date: 2021-02-28
Publication date: 2021-09-21
Anticipated expiration: 2031-02-28

Abstract

The utility model discloses an explosion-proof power supply of hand warmer presss from both sides, including last clamp, conductive terminal, plug and dop portion, be equipped with the jack in the plug, characterized by, it includes casing, lower casing and mounting to go up the clamp, the casing bottom surface is equipped with the mounting hole down, the mounting hole edge is equipped with the groove of stepping down, the plug periphery that corresponds is equipped with the arch, in the plug inserts the mounting hole, the arch aligns and passes behind the groove of stepping down, the plug rotates, protruding bottom surface supports with the lower casing at mounting hole edge mutually, it fixes under on the casing to go up the casing, the mounting includes fixed part and dop portion, the fixed part sets up on last casing or casing down, dop portion fixes conductive terminal in the jack, the fixed part limits the dop portion in the jack. According to the explosion-proof power supply clamp for the hand warmer, the plug is directly mounted on the lower shell, the assembly is simple and easy, the clamping head part is fixed through the fixing part, the clamping head part, the conductive terminals and the jacks are ensured to be firmly connected, and the use is safe and reliable.

Description

Explosion-proof power supply clamp of hand warmer

Technical Field

The utility model relates to an electric heating bag technical field specifically is an explosion-proof power supply clamp of hand warmer.

Background

An explosion-proof clamp plug of an electric heating bag is disclosed in Chinese patent CN208371995U, relates to the technical field of electric heating bags, is used for solving the problems of troublesome installation and easy loosening, and comprises a head, a head clamp, an inserting piece, a lead, an explosion-proof left side shell and an explosion-proof right side shell; the distolateral side of head sets up 2-3 penetrating slots, the inner side of head and the position that corresponds the slot are provided with the draw-in groove, head dop block is in the inside of draw-in groove, the inserted sheet is detachable respectively and inserts the inside of slot and the inner side of inserted sheet sees through the head dop, the inner side at the inserted sheet is connected respectively to the one end of wire, the fixed upside that sets up at explosion-proof left side casing of explosion-proof right side casing, the one end of explosion-proof right side casing and explosion-proof left side casing is provided with fixedly and the other end is provided with the wire export, the fixed inside that sets up at the fixed slot in the inner of head.

The explosion-proof clip plug of the electric heating bag has the following defects: the head part needs to be fixed by the explosion-proof left side shell and the explosion-proof right side shell together, so that the assembly is inconvenient; moreover, the head dop block is in the draw-in groove, and the inserted sheet atress makes the head dop rebound and then breaks away from the draw-in groove, and the inserted sheet can't be fixed in the slot like this, leads to the explosion-proof double-layered plug of electric heating bag can't normally charge.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the shortcomings of the prior art, and provides an explosion-proof power supply clamp of a hand warmer, which is simple in assembly and firm in fixing of a clamping head part and a conductive terminal.

The purpose of the utility model is realized like this.

The utility model provides an explosion-proof power supply clamp of hand warmer, includes last clamp, conductive terminal, plug and dop portion, be equipped with the jack in the plug, characterized by, it includes casing, lower casing and mounting to go up the clamp, the casing bottom surface is equipped with the mounting hole down, the mounting hole edge is equipped with the groove of stepping down, the plug periphery that corresponds is equipped with the arch, the plug inserts in the mounting hole, the arch aligns and passes behind the groove of stepping down, the plug rotates, protruding bottom surface supports with the lower casing at mounting hole edge mutually, it fixes on the casing down to go up the casing, the mounting includes fixed part and dop portion, the fixed part sets up on last casing or casing down, dop portion fixes conductive terminal in the jack, the fixed part limits the dop portion in the jack. According to the explosion-proof power supply clamp for the hand warmer, the plug is directly mounted on the lower shell, the assembly is simple and easy, the clamping head part is fixed through the fixing part, the clamping head part, the conductive terminals and the jacks are ensured to be firmly connected, and the use is safe and reliable.

As a more specific scheme, a first limiting block is arranged on one side of the clamping head portion corresponding to the yielding groove, after the plug is fixed in the mounting hole, the clamping head portion fixes the conductive terminal in the jack, and the first limiting block is inserted into the yielding groove. The clamping head part is matched with the abdicating groove to limit the rotation of the plug, and the plug cannot be easily separated from the jack.

As a more specific scheme, the fixing part and the clamping head part are arranged, the fixing part is a first fixing column extending downwards from the bottom surface of the upper shell, and the first fixing column abuts against the clamping head part after the upper shell is fixed with the lower shell. The first fixing column prevents the chuck part from moving upwards, so that the conductive terminal cannot move upwards to be separated from the jack.

As another more specific solution, the fixing portion and the clamping portion are integrally formed, and the fixing member is fixed on the top surface of the lower housing, so that the clamping portion fixes the conductive terminal in the jack. In the structure, the fixing part is directly and fixedly connected with the lower shell so as to achieve the purpose of limiting the movement of the clamping head part.

More specifically, the lower shell is provided with studs on two sides of the mounting hole, two ends of the fixing portion are arranged on the corresponding studs respectively, and the end portion of the fixing portion is connected with the studs through screws. The fixing part has simple and reasonable structure and convenient installation, and can also play the role of limiting the movement of the clamping head part.

As a more specific scheme, the top surface of the plug is provided with a limiting groove, the bottom surface of the fixing part is provided with a second limiting block, and the second limiting block is inserted into the limiting groove. The fixing part limits the plug to rotate, so that the plug cannot be easily separated from the jack.

More specifically, the fixing portion is provided with a wire guide groove corresponding to the conductive terminal. The conducting terminal is convenient to lead out.

As more specific scheme, still be equipped with the fixed slot in the inferior valve body, be equipped with micro-gap switch in the fixed slot, go up casing bottom surface downwardly extending second fixed column, go up the casing and with inferior valve body fixation back, the second fixed column offsets with micro-gap switch. The microswitch is firmly fixed and not easy to displace, and the normal triggering of the explosion-proof function is ensured.

As another more specific scheme, the lower casing is internally provided with a fixing groove, a microswitch is arranged in the fixing groove, elastic clamping pieces are respectively arranged on two sides of the lower casing corresponding to the microswitch, the end part of each elastic clamping piece is provided with a barb, the two microswitch clamping pieces clamp the microswitch, and the barb hooks the top surface of the microswitch. The elastic clamping piece and the barb fix the micro switch, the micro switch is not easy to displace, and the normal triggering of the explosion-proof function is ensured.

As a more specific scheme, a power cord chuck is clamped and fixed between the upper shell and the lower shell, a convex column is arranged on the top surface of the lower shell, a third fixing column extends downwards from the bottom surface of the upper shell, the convex column is connected with the third fixing column through a screw, and the inner end of the power cord chuck abuts against the convex column or the third fixing column. The power cord clamp is prevented from entering the upper clamp body.

The utility model has the advantages as follows.

(1) According to the explosion-proof power supply clamp for the hand warmer, the plug is directly mounted on the lower shell, the assembly is simple and easy, the clamping head part is fixed through the fixing part, the clamping head part, the conductive terminals and the jacks are ensured to be firmly connected, and the use is safe and reliable.

(2) Secondly, the clamping head part is matched with the abdicating groove to limit the plug to rotate, the plug cannot be easily separated from the jack, the clamping head part cannot move upwards due to the first fixing column, and the conductive terminal cannot move upwards to be separated from the jack; or the fixing part is directly fixedly connected with the lower shell to achieve the purpose of limiting the movement of the chuck part, and the fixing part limits the plug to rotate, so that the plug cannot be easily separated from the jack.

(3) Moreover, the micro switch is limited in the fixing groove by the second fixing column, so that the micro switch is not easy to displace, and the normal triggering of an explosion-proof function is ensured; or the elastic clamping piece and the barb fix the microswitch which is not easy to displace, so that the normal triggering of the explosion-proof function is ensured.

(4) In addition, the convex column or the third fixed column is designed to prevent the power cord chuck from entering the upper clamp body.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a schematic structural diagram of the first embodiment (the upper housing is omitted).

Fig. 3 is an exploded schematic view (microswitch not shown) of the first embodiment.

Fig. 4 is an exploded view (another view) of the first embodiment.

Fig. 5 is a schematic cross-sectional structure diagram of the first embodiment.

Fig. 6 is a schematic structural view of the second embodiment (the upper case is omitted).

Fig. 7 is an exploded schematic view of the second embodiment.

Fig. 8 is an exploded schematic view (another view) of the second embodiment.

Fig. 9 is a schematic cross-sectional structure diagram of the second embodiment.

Fig. 10 is an exploded schematic view of the third embodiment.

Fig. 11 is an exploded schematic view (another view) of the third embodiment.

Fig. 12 is a schematic cross-sectional view of the third embodiment.

Fig. 13 is another schematic cross-sectional view of the second embodiment.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

in the first embodiment, referring to fig. 1 to 5, an explosion-proof power supply clip for a hand warmer comprises an upper clip body 1, a lower clip body 4, a conductive terminal (not shown in the figure), and a plug 2, wherein a jack 21 is arranged in the plug 2, a protrusion 22 is arranged on the periphery of the plug 2, and the upper clip body 1 is rotatably connected with the lower clip body 4. Go up clamp body 1 and include casing 5, casing 6 and fixed part 7 down, 6 bottom surfaces of lower casing are equipped with mounting hole 61, mounting hole 61 edge is equipped with the groove of stepping down 62, be equipped with fixed slot 63 in the casing 6 down, be equipped with micro-gap switch 8 in the fixed slot 63, the mounting is including fixed part 7 and the dop portion 3 that the components of a whole that can function independently set up, fixed part 7 is the first fixed column 51 that 5 bottom surfaces of last casing extend downwards, go up 5 bottom surfaces of casing and extend second fixed column 52 downwards, dop portion 3 one side is equipped with first stopper 31.

Wherein, a power cord chuck 9 is clamped and fixed between the upper casing 5 and the lower casing 6, a convex column 64 is arranged on the top surface of the lower casing 6, and a third fixing column 53 extends downwards from the bottom surface of the upper casing 5.

During the installation, in plug 2 inserted mounting hole 61, protruding 22 aligns and passes the groove 62 of stepping down after, rotates plug 2, and protruding 22 bottom surface offsets with the lower casing 6 at mounting hole 61 edge, and of course, lower casing 6 can set up dog 60 at mounting hole 61 edge, and plug 2 rotates to protruding 22 and offsets with dog 60, installs promptly and targets in place. The head portion 3 fixes the conductive terminal in the insertion hole 21, and at the same time, the first stopper 31 is inserted into the receding groove 62, so that the plug 2 cannot rotate. The upper shell 5 covers the lower shell 6, the protruding column 64 is connected with the third fixing column 53 through a screw, the inner end of the power cord chuck 9 abuts against the protruding column 64, the upper shell 5 and the lower shell 6 are fixed through ultrasonic welding, the first fixing column 51 abuts against the chuck portion 3, namely the chuck portion 3 cannot move upwards, the second fixing column 52 abuts against the micro switch 8, and the micro switch 8 is fixed in the fixing groove 63.

Conductive terminal, micro-gap switch 8 and power cord chuck 9 pass through wire electric connection, and when hand warmer (for example electric heating bag) heating expansion to certain degree between last clamp 1 and the lower clamp 4, go up clamp 1 and rotate around clamp 4 down, and then trigger micro-gap switch 8, micro-gap switch 8 disconnection, hand warmer just can't continue the conductive heating through the conductive terminal in the plug 2 to reach explosion-proof function.

The second embodiment, as shown in fig. 6-9, is different from the first embodiment in that: the fixing part 7 and the clamping head part 3 are integrally formed, the fixing part 7 is fixed on the top surface of the lower shell 6, and the clamping head part 3 on the bottom surface of the fixing part 7 is abutted to the conductive terminal. Elastic clamping pieces 65 are respectively arranged on the two sides of the lower shell 6 corresponding to the micro switch 8, barbs 66 are arranged at the end parts of the elastic clamping pieces 65, the two micro elastic clamping pieces 65 clamp the micro switch 8, and the barbs 66 hook and buckle the top surface of the micro switch 8.

In this embodiment, the fixing portion 7 is a fixing plate, the lower housing 6 is provided with studs 67 on two sides of the mounting hole 61, two ends of the fixing portion 7 are respectively disposed on the corresponding studs 67, an end of the fixing portion 7 is connected to the studs 67 through screws, the top surface of the plug 2 is provided with a limiting groove 23, the bottom surface of the fixing portion 7 is provided with a second limiting block 71, and the fixing portion 7 is provided with a wire guide 72 corresponding to the conductive terminal.

During the installation, in plug 2 inserted mounting hole 61, protruding 22 aligns and passes the groove 62 of stepping down after, rotates plug 2, and protruding 22 bottom surface offsets with the lower casing 6 at mounting hole 61 edge, and of course, lower casing 6 can set up dog 60 at mounting hole 61 edge, and plug 2 rotates to protruding 22 and offsets with dog 60, installs promptly and targets in place. The fixing part 7 is connected with the stud 67 through a screw, so that the conductive terminal is fixed in the jack 21 by the clamping head part 3, the second limiting block 71 is inserted into the limiting groove 23, the plug 2 cannot rotate, and the lead of the conductive terminal is led out from the lead groove 72.

Referring to fig. 7 and fig. 13, the utility model discloses in, the both sides of going up 1 one end of clamp are equipped with shaft hole 11 respectively, and the side of one end corresponds shaft hole 11 and is equipped with guiding groove 12, lower clamp 4 is equipped with movable groove 40, corresponding movable groove 40 both sides fretwork respectively is formed with shell fragment 41, two shell fragment 41 expansion ends extend protruding axle 42 in opposite directions, go up 1 one end of clamp and insert in movable groove 40, protruding axle 42 aligns and inserts in guiding groove 12, guiding groove 12 makes protruding axle 42 and the shell fragment 41 that corresponds outwards, move shaft hole 11 department in guiding groove 12 when protruding axle 42, the elasticity of shell fragment 41 makes protruding axle 42 insert in shaft hole 11, protruding axle 42 is at shaft hole 11 internal rotation, thereby realize going up clamp 1 and lower clamp 4 and rotate the connection.

Example three, see fig. 10-12, which differs from example two in that: the fixing portion 7 and the chuck portion 3 are formed separately, and the fixing portion 7 and the chuck portion 3 can be manufactured more easily. Lower casing 6 corresponds micro-gap switch 8 both sides and is equipped with elastic clamping piece 65 respectively, and elastic clamping piece 65 tip is equipped with barb 66, and two micro-gap elastic clamping piece 65 press from both sides

tight micro-gap switch

8, and 5 bottom surfaces of casing extend second fixed column 52 downwards on the barb 66 catch micro-gap switch 8 top surface, go up casing 5 and lower casing 6 and pass through ultrasonic welding fixed, and second fixed column 52 offsets with micro-gap switch 8. The micro-gap switch is fixed more firmly.

Claims

1. An explosion-proof power supply clamp of a hand warmer comprises an upper clamp body (1), a conductive terminal, a plug (2) and a clamping head part (3), wherein a jack (21) is arranged in the plug (2), and is characterized in that the upper clamp body (1) comprises an upper shell (5), a lower shell (6) and a fixing part, the bottom surface of the lower shell (6) is provided with a mounting hole (61), the edge of the mounting hole (61) is provided with a yielding groove (62), the periphery of the corresponding plug (2) is provided with a bulge (22), the plug (2) is inserted into the mounting hole (61), the bulge (22) is aligned and passes through the yielding groove (62), the plug (2) is rotated, the bottom surface of the bulge (22) is abutted to the lower shell (6) at the edge of the mounting hole (61), the upper shell (5) is fixed on the lower shell (6), the fixing part comprises a fixing part (7) and a clamping head part (3), the fixing part (7) is arranged on the upper shell or the lower shell (6), the head part (3) fixes the conductive terminal in the insertion hole (21), and the fixing part (7) limits the head part (3) in the insertion hole (21).

2. The explosion-proof power supply clamp of the hand warmer according to claim 1, wherein a first limit block (31) is arranged on one side of the clamping head portion (3) corresponding to the abdicating groove (62), after the plug (2) is fixed in the mounting hole (61), the clamping head portion (3) fixes the conductive terminal in the jack (21), and the first limit block (31) is inserted into the abdicating groove (62).

3. The explosion-proof power supply clamp of the hand warmer according to claim 1, wherein the fixing part (7) and the clamping head part (3) are arranged separately, the fixing part (7) is a first fixing column (51) extending downwards from the bottom surface of the upper shell (5), and after the upper shell (5) and the lower shell (6) are fixed, the first fixing column (51) is abutted against the clamping head part (3).

4. The explosion-proof power supply clip of hand warmer of claim 1, wherein the fixing portion (7) and the head clamping portion (3) are integrally formed, and the fixing member is fixed on the top surface of the lower housing (6) so that the head clamping portion (3) fixes the conductive terminal in the insertion hole (21).

5. The explosion-proof power supply clamp of the hand warmer as claimed in claim 4, wherein the lower shell (6) is provided with studs (67) at two sides of the mounting hole (61), two ends of the fixing part (7) are respectively arranged on the corresponding studs (67), and the end part of the fixing part (7) is connected with the studs (67) through screws.

6. The explosion-proof power supply clamp of the hand warmer as claimed in claim 4, wherein the top surface of the plug (2) is provided with a limiting groove (23), the bottom surface of the fixing part (7) is provided with a second limiting block (71), and the second limiting block (71) is inserted into the limiting groove (23).

7. The explosion-proof power supply clamp of hand warmer according to claim 4, characterized in that the fixing portion (7) is provided with a wire groove (72) corresponding to the conductive terminal.

8. The explosion-proof power supply clamp of the hand warmer according to claim 1, wherein a fixing groove (63) is further formed in the lower shell (6), a microswitch (8) is arranged in the fixing groove (63), a second fixing column (52) extends downwards from the bottom surface of the upper shell (5), and after the upper shell (5) and the lower shell (6) are fixed, the second fixing column (52) abuts against the microswitch (8).

9. The explosion-proof power supply clamp of the hand warmer according to claim 1, wherein a fixing groove (63) is further formed in the lower shell (6), a micro switch (8) is arranged in the fixing groove (63), elastic clamping pieces (65) are respectively arranged on the lower shell (6) corresponding to two sides of the micro switch (8), barbs (66) are arranged at the end portions of the elastic clamping pieces (65), the micro switch (8) is clamped by the two micro elastic clamping pieces (65), and the barbs (66) hook and buckle the top surface of the micro switch (8).

10. The explosion-proof power supply clamp of the hand warmer as claimed in claim 1, wherein a power cord chuck (9) is clamped and fixed between the upper shell (5) and the lower shell (6), a convex column (64) is arranged on the top surface of the lower shell (6), a third fixing column (53) extends downwards from the bottom surface of the upper shell (5), the convex column (64) and the third fixing column (53) are connected through a screw, and the inner end of the power cord chuck (9) is abutted against the convex column (64) or the third fixing column (53).