CN220233476U - Prevent taking turns to formula connector of inserting directly - Google Patents

Abstract

The utility model discloses an anti-beater direct-insertion connector, which comprises: a housing; the handle is provided with a mounting slot and a mounting post which are matched with each other between the shell and the handle so as to realize that the handle is installed on the shell in a turnover way; the inner periphery of the mounting slot is provided with a first tooth matching part, and the outer periphery of the mounting plunger is provided with a second tooth matching part, so that the handle is limited in the handle overturning process through interaction of the first tooth matching part and the second tooth matching part; a driven component; the handle is flipped to drive the driven assembly in motion to open the connector. By adopting the scheme, the anti-beater direct-insertion connector is provided, and overturning action is stopped by clamping the first tooth matching part and the second tooth matching part in the overturning process of the handle so as to prevent beater caused by overturning of the handle in rapid movement.

Description

Prevent taking turns to formula connector of inserting directly

Technical Field

The utility model belongs to the field of direct-insertion connectors, and particularly relates to an anti-beater direct-insertion connector.

Background

The in-line connector is a product for quick wiring. The conventional direct-insertion connector generally comprises a housing, and a handle, a middle driving member, an elastic member and a conductive terminal which are mounted on the housing, so that a wire to be connected is inserted between the elastic member and the conductive terminal, and is effectively clamped through the elasticity of the elastic member to realize stable wiring.

In addition, after the dismouting wire is accomplished, need stir the handle and make the handle overturn under the reset action of elastic component, however, the elastic component is in under the state of maximum elastic deformation this moment for the elasticity potential energy of elastic component converts the kinetic energy of handle fast and overturns the phenomenon that resets and take place the hired roughneck fast, thereby causes the injury to the operator.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the anti-beater direct insertion connector which can prevent beater caused by overturning of the handle in rapid movement by stopping overturning action through clamping of the first tooth matching part and the second tooth matching part in the overturning process of the handle.

In order to achieve the above purpose, the present utility model provides the following technical solutions: comprising the following steps: a housing; the handle is provided with a mounting slot and a mounting post which are matched with each other between the shell and the handle so as to realize that the handle is installed on the shell in a turnover way; the inner periphery of the mounting slot is provided with a first tooth matching part, and the outer periphery of the mounting plunger is provided with a second tooth matching part, so that the handle is limited in the handle overturning process through interaction of the first tooth matching part and the second tooth matching part; a driven component; the handle is flipped to drive the driven assembly in motion to open the connector.

The utility model is further provided with: the mounting slots are arranged in a strip shape; the first tooth portion of joining in marriage includes a plurality of sets up in the both sides of installation slot, and along the third latch of the length direction range of installation slot, the second tooth portion of joining in marriage includes that at least 2 sets up in the radial both sides of installation inserted bar fifth latch.

The utility model is further provided with: the length both ends of installation slot are provided with respectively and are semicylindrical or semicircle conical mating cavity, first tooth joining in marriage the portion and include at least 1 piece and set up the fourth latch in corresponding mating cavity.

The utility model is further provided with: the number of the fourth clamping teeth in each matching cavity is a plurality of pieces, the fourth clamping teeth are arranged along the circumferential spacing of the corresponding matching cavity, and the third clamping teeth and the fourth clamping teeth are combined into a ring.

The utility model is further provided with: the number of the fifth latches is a plurality of pieces, and the fifth latches are arranged at intervals along the circumferential direction of the mounting inserted column and are arranged in a ring.

The utility model is further provided with: the mounting slots are arranged in round holes; the first tooth matching part comprises a plurality of first clamping teeth which are arranged along the circumferential spacing, and the second tooth matching part comprises at least 1 second clamping tooth matched between the adjacent first clamping teeth; or, the second tooth matching part comprises a plurality of second teeth which are arranged along the circumferential spacing, and the first tooth matching part comprises at least 1 first tooth matched between the adjacent second teeth.

The utility model is further provided with: the first clamping teeth are arranged in a ring along the circumferential direction of the mounting slot, and the number of the second clamping teeth is more than 2; or, each second latch is arranged in a ring along the circumferential direction of the mounting plunger, and the number of the first latches is more than 2.

The utility model is further provided with: the connector is characterized in that a lock catch part is arranged on the shell, a lock catch groove is formed in the handle, an access opening is formed in one side of the lock catch groove, and the lock catch part enters the lock catch groove through the access opening and is mutually clamped in the process that the handle is turned towards the closed state of the connector.

The utility model is further provided with: the driven component comprises a first rotating seat, an elastic piece and a second rotating seat, wherein the elastic piece is clamped between the first rotating seat and the second rotating seat, the handle is provided with a driving part, the first rotating seat is provided with a first driven part, and the second rotating seat is provided with a second driven part; in the process that the handle turns over towards the opening state of the connector, the driving part acts on the first driven part and the second driven part to drive the first rotating seat and the second rotating seat to rotate.

The utility model is further provided with: the novel multifunctional electric bicycle is characterized in that an assembly cavity is formed in the shell, a side plate is arranged on one side of the shell, which is located in the assembly cavity, an opening is formed in one side, which is away from the side plate, of the assembly cavity, the locking part is arranged on the side plate, the locking groove is arranged towards one side, which is located towards the side plate, of the locking groove, and a limiting rib is arranged between the first driven part and the second driven part, which is located by the handle.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a connector in a closed state according to an embodiment of the present utility model;

FIG. 2 is a front view of a connector according to an embodiment of the present utility model in an open state;

FIG. 3 is an exploded view of a multi-piece connector and cap assembly according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a connector and cap combination according to an embodiment of the present utility model;

FIG. 5 is a part view of a housing according to an embodiment of the utility model;

FIG. 6 is a detail view of a handle according to an embodiment of the present utility model;

FIG. 7 is an enlarged view of FIG. 5A;

FIG. 8 is an enlarged view of B in FIG. 6;

FIG. 9 is a part view of a three handle according to an embodiment of the present utility model;

FIG. 10 is a part view of a fourth housing according to an embodiment of the present utility model;

FIG. 11 is a part view of a fifth embodiment of the present utility model;

FIG. 12 is a part view of a fifth handle according to an embodiment of the present utility model;

FIG. 13 is a detail view of a seventh handle of an embodiment of the present utility model;

FIG. 14 is a part view of an eight housing according to an embodiment of the utility model;

FIG. 15 is a part view of a ninth housing according to an embodiment of the present utility model;

fig. 16 is a detail view of a ten-handle according to an embodiment of the present utility model.

Reference numerals: 1. a housing; 11. a locking part; 12. a convex portion; 13. a mounting column; 14. an assembly chamber; 15. a side plate; 16. a convex column; 2. a handle; 21. a latch groove; 22. an inlet and outlet opening; 23. a cavity; 24. a driving section; 25. limit ribs; 3. installing a slot; 31. a first tooth-fitting portion; 32. a mating cavity; 311. a first latch; 313. a third latch; 314. a fourth latch; 4. installing a plug; 41. a second tooth-fitting portion; 412. a second latch; 415. fifth latch; 5. a driven component; 51. a first rotary base; 52. an elastic member; 53. a second rotating seat; 54. a conductive terminal; 511. a first driven part; 531. a second driven part; 6. and a cover.

Detailed Description

The utility model will be described in detail below with respect to certain specific embodiments thereof in order to better understand the utility model and thereby to more clearly define the scope of the utility model as claimed. It should be noted that the following description is only some embodiments of the inventive concept and is only a part of examples of the present utility model, wherein the specific direct description of the related structures is only for the convenience of understanding the present utility model, and the specific features do not naturally and directly limit the implementation scope of the present utility model. Conventional selections and substitutions made by those skilled in the art under the guidance of the inventive concept should be considered as being within the scope of the claimed utility model.

Embodiment one:

as shown in fig. 1-8, the present utility model discloses an anti-beater direct insertion type connector, comprising: a square shell 1; the handle 2 is L-shaped, the shell 1 is provided with a mounting slot 3, the handle 2 is provided with a mounting inserting column 4, and the mounting inserting column 4 is inserted into the mounting slot 3 to realize that the handle 2 is installed on the shell 1 in a turnover manner; a driven component 5; the handle 2 is turned over from the state shown in fig. 1 (connector-off state) to the state shown in fig. 2 (connector-on state) to drive the driven component 5 to move to open the connector, so that the wire to be connected can be inserted into the connector from the wire connection hole, and then the driven component 5 is automatically reset to close the connector by turning over from the state shown in fig. 2 to the state shown in fig. 1, so that the wire and the connector can be stably connected.

Further, the inner circumference of the mounting socket 3 in the present embodiment is provided with a first tooth fitting portion 31, and the outer circumference of the mounting post 4 is provided with a second tooth fitting portion 41, so that the handle 2 is restrained during the overturning of the handle 2 by the interaction of the first tooth fitting portion 31 and the second tooth fitting portion 41.

Therefore, during the process of turning over the driven component 5 from the state shown in fig. 2 to the state shown in fig. 1, although the driven component 5 is automatically reset to drive the handle 2 to turn over, during the process of turning over, the interaction of the first tooth matching portion 31 and the second tooth matching portion 41 will limit the turning over of the handle 2, so as to prevent the phenomenon that the handle 2 is turned over quickly to close the connector and the operator does not withdraw the hand timely, and in addition, if the operator wants to turn over the handle 2 to close the connector under the action of the first tooth matching portion 31 and the second tooth matching portion 41, the operator applies force to the handle 2 to force the first tooth matching portion 31 to pass over the second tooth matching portion 41 so as to turn over.

Preferably, the mounting slot 3 in this embodiment is arranged in a strip shape and extends in a left-right direction; the mounting slot 3 with the strip shape is used for the mounting inserting column 4 to rotate and mount and simultaneously can slide left and right, so that the handle 2 is pressed towards the right to prop against the shell 1 under the reset action of the driven component 5, and the driving handle 2 needs larger acting force for overturning, so that the handle 2 is more stably positioned under the state shown in fig. 1 and 2 under the action of no external force.

Preferably, in this embodiment, the first tooth matching portion 31 includes a plurality of third latches 313 disposed on two sides of the mounting slot 3 and arranged along a length direction of the mounting slot 3, and correspondingly, the second tooth matching portion 41 includes a plurality of fifth latches 415, and each fifth latch 415 is disposed along a circumferential interval of the mounting post 4 and is disposed in a ring, so as to be clamped to the third latches 313 by the fifth latches 415 to perform overturning limiting of the handle 2.

Therefore, when the mounting post 4 moves in the mounting slot 3, the fifth latch 415 disposed in a circumferential ring will be engaged with the upper third latch 313 and the lower third latch 313, so that the upper and lower sides are simultaneously limited, and the operator needs to apply a larger force to synchronously force the upper fifth latch 415 and the lower fifth latch 415 to be engaged with each other to forcibly pass over the corresponding third latch 313, so as to turn over the handle 2, and after turning over, the adjacent fifth latch 415 is engaged with the third latch 313 again to repeatedly limit, so that the operator needs to continuously apply a force to gradually turn over the handle 2 from the state shown in fig. 2 to the state shown in fig. 1.

In addition, the two ends of the length of the mounting slot 3 in this embodiment are respectively provided with a mating cavity 32 having a semi-cylindrical shape or a semi-conical shape (the embodiment adopts a semi-cylindrical shape, the semi-conical shape is a non-optimal solution, and other people are prevented from avoiding design), in addition, the first tooth matching portion 31 includes at least 1 piece of fourth latch 314 disposed in the corresponding mating cavity 32, so 1, in the state shown in fig. 1, the mounting plunger 4 is matched in the right mating cavity 32, and the fifth latch 415 disposed in a ring is limited by the third latch 313, and is also limited by the fourth latch 314, if the handle 2 needs to be turned over, then a larger force needs to be overcome to make the connector more stable in the closed state, 2, in the state shown in fig. 2, the mounting plunger 4 is matched in the left mating cavity 32, and the fifth latch 415 disposed in a ring is limited by the third latch 313, is also limited by the fourth latch 314, and if the handle 2 needs to be turned over, so that a larger force needs to overcome the connector in the opened state more stable.

Preferably, in this embodiment, the number of the fourth latches 314 in each of the matching cavities 32 is several, and the fourth latches 314 are arranged along the circumferential spacing of the corresponding matching cavities 32, so that the number of the third latches 313 and the fourth latches 314 is maximized, and the fourth latches 415 are matched with the fifth latches 415 in a ring, so that the anti-striking function is optimally realized, and the structure arrangement of the mounting slot 3 is more concise due to the third latches 313 and the fourth latches 314 in a ring, and similarly, the structure arrangement of the mounting inserting column 4 is more concise due to the fifth latches 415 in a ring.

In addition, in this embodiment, the housing 1 is provided with the latch portion 11 integrally formed, the handle 2 is provided with the latch slot 21, one side of the latch slot 21 is provided with the access opening 22, and in the process that the handle 2 is turned over towards the closed state of the connector, the latch portion 11 enters the latch slot 21 through the access opening 22 and is clamped with each other, so that the stability of the handle 2 of the connector in the closed state is improved through the cooperation of the latch portion 11 and the latch slot 21, and the loosening of the installation of the wires caused by the mistaken rotation of the handle 2 is prevented.

Preferably, the left side of the locking portion 11 in the present embodiment protrudes to the left and is provided with a convex portion 12, and the left side of the locking groove 21 in the state shown in fig. 1 is correspondingly provided with a concave cavity 23, so that the convex portion 12 and the concave cavity 23 can be matched to realize a clamping connection, and under the automatic reset acting force of the driven component 5, the handle 2 can be driven to the right so as to enable the convex portion 12 and the concave cavity 23 to be better matched.

Specifically, the driven component 5 in this embodiment includes a first rotating seat 51, an elastic member 52 and a second rotating seat 53, the housing 1 is provided with a mounting post 13 extending along a front-rear direction, so that the first rotating seat 51, the elastic member 52 and the second rotating seat 53 are sequentially sleeved on the mounting post 13, so as to realize that the elastic member 52 is clamped between the first rotating seat 51 and the second rotating seat 53, in addition, one L-shaped end of the handle 2 is provided with a driving portion 24, correspondingly, the first rotating seat 51 is integrally provided with a first driven portion 511, and the second rotating seat 53 is integrally provided with a second driven portion 531; in order to make the handle 2 turn over the in-process towards the connector open state, the drive portion 24 acts on the first driven portion 511 and the second driven portion 531 to drive the first rotating seat 51 and the second rotating seat 53 to rotate, so 1, the elastic piece 52 is clamped back and forth by the first rotating seat 51 and the second rotating seat 53 to be installed more stably, the connector damage caused by the unstability and the dislocation of the elastic piece 52 is prevented, and 2, the first driven portion 511 and the second driven portion 531 can be driven by the drive portion 24 to move synchronously to drive the elastic piece 52 to deform, so that the driving is more stable.

Preferably, in this embodiment, the first rotating seat 51 is provided with a plurality of insertion holes towards the second rotating seat 53, and correspondingly, the second rotating seat 53 is provided with a plurality of inserting columns towards the first rotating seat 51, so as to fixedly connect the two through insertion of the insertion holes and the inserting columns, thereby enabling synchronous movement to be more stable.

In addition, in this embodiment, the housing 1 is provided with an assembly cavity 14 for mounting the handle 2, the first rotating seat 51, the elastic member 52, the second rotating seat 53 and the conductive terminal 54, in addition, the rear side of the housing 1 located in the assembly cavity 14 is provided with a side plate 15, and the front side of the assembly cavity 14 is provided with an opening, so that the first rotating seat 51, the elastic member 52, the handle 2, the second rotating seat 53 and the conductive terminal 54 are sequentially mounted on the housing 1 through the front side opening towards the rear, and are mounted in a unidirectional manner, so that the mounting process is simpler and can be fully automatically mounted.

Preferably, the latch portion 11 in this embodiment is disposed on the side plate 15, and the rear side of the latch slot 21 is disposed with an opening, so that the handle 2 can be mounted in the front-rear direction in the state shown in fig. 1, in this state, the elastic member 52 has the smallest elastic potential energy, and is not easy to collapse, and the handle 2 is attached to the housing 1 in the length direction, so that the space required for mounting is smaller, and in addition, when the handle 2 is located near the housing 1 in the front-rear direction, the latch portion 11 can enter the latch slot 21 through the opening at the rear side of the latch slot 21.

In addition, in this embodiment, the handle 2 is disposed between the first driven portion 511 and the second driven portion 531, and a limiting rib 25 is provided, so that the limiting rib 25 is limited between the first driven portion 511 and the second driven portion 531 during the installation process, so as to limit the handle 2 in the front-rear direction, and prevent the handle 2 from falling out to enable the installation of the frame to be loose.

In addition, in the present embodiment, the rear side of the housing 1 is provided with the through hole 17, and the front side is provided with the protruding column 16, so that the multi-piece connector as shown in fig. 3 can be spliced, and the front side of the front connector can be provided with the cover 6 for closing use.

Embodiment two:

the main structure of the anti-beater direct-insertion connector is the same as that of the first embodiment, except that the mounting slot 3 is arranged on the handle 2, and the mounting post 4 is arranged on the housing 1.

Embodiment III:

as shown in fig. 9, the anti-driving direct plug-in connector has the same main structure as the first embodiment, and is different in that the number of the fifth latches 415 is 2n (2 as shown in the drawing), and is usually 2 and 4, wherein n fifth latches 415 are disposed on one radial side of the mounting post 4, and n fifth latches 415 are disposed on the other radial side of the mounting post 4, so that during the movement of the mounting post 4, only each fifth latch 415 on two sides interacts with the third latch 313 in the corresponding mounting slot 3 to limit, and at other positions, the limitation of resetting of the driven device is not performed.

Embodiment four:

as shown in fig. 10, the main structure of the anti-beater in-line connector is the same as that of the embodiment, except that the fourth latch 314 is not disposed in the mating cavity 32.

Fifth embodiment:

as shown in fig. 11 and 12, the main structure of the anti-beater direct insertion connector is the same as that of the first embodiment, and the difference is that the mounting slot 3 adopts a round hole, the first tooth matching portion 31 includes a plurality of first teeth 311 arranged along a circumferential interval, and is arranged in a ring, and the second tooth matching portion 41 includes a plurality of second teeth 412 arranged along a circumferential interval, and is arranged in a ring, so that the overturning restriction is performed by the clamping connection of each first tooth 311 and each second tooth 412, and a larger force is required to make each second tooth 412 rotate beyond the corresponding first tooth 311.

Example six:

the main structure of the anti-beater direct-insertion connector is the same as that of the fifth embodiment, except that the mounting slot 3 is arranged on the handle 2, and the mounting post 4 is arranged on the housing 1.

Embodiment seven:

as shown in fig. 13, the main structure of the anti-beater direct insertion connector is the same as that of the fifth embodiment, except that the number of the second latches 412 is 1-3 (1 is shown in the drawing), so that the anti-beater direct insertion connector can move between the looped first latches 311 through a few second latches 412, and the anti-beater direct insertion connector can prevent the excessive rotation resistance, so that the user experience is poor.

Example eight:

as shown in fig. 14, the main structure of the anti-beater direct insertion connector is the same as that of the fifth embodiment, except that the number of the first latches 311 is 1-3 (1 is shown in the drawing), so that the anti-beater direct insertion connector can move between the looped second latches 412 through a few first latches 311, and the anti-beater direct insertion connector can prevent the excessive rotation resistance, so that the user experience is poor.

Example nine:

as shown in fig. 15, the main structure of the anti-beater direct insertion connector is the same as that of the seventh embodiment, and the difference is that the number of the first latches 311 is several, but the first latches 311 are not arranged in a ring, and only the second latches 412 are required to be locked in the first latches 311, and the second latches 412 are locked with the first latches 311 when the handle 2 is in the connector open state to the connector closed state.

Example ten:

as shown in fig. 16, the main structure of the anti-beater direct insertion connector is the same as that of the eighth embodiment, and the difference is that the number of the second latches 412 is a plurality, but the second latches 412 are not arranged in a ring, and only the first latches 311 are required to be locked in the second latches 412, and the first latches 311 and the second latches 412 are required to be locked and matched in all the states of the handle 2 from the connector open state to the connector closed state.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An anti-stump in-line connector, comprising:

a housing (1);

the handle (2), the mounting slot (3) and the mounting post (4) which are matched with each other are arranged between the shell (1) and the handle (2) so as to realize that the handle (2) is installed on the shell (1) in a turnover way;

the inner periphery of the mounting slot (3) is provided with a first tooth matching part (31), and the outer periphery of the mounting inserting column (4) is provided with a second tooth matching part (41), so that the handle (2) is limited in the overturning process of the handle (2) through interaction of the first tooth matching part (31) and the second tooth matching part (41);

-a driven component (5);

the handle (2) is turned over to drive the driven component (5) to move so as to open the connector.

2. The anti-stump in-line connector of claim 1, wherein: the mounting slot (3) is arranged in a strip shape;

the first tooth matching part (31) comprises a plurality of third clamping teeth (313) which are arranged on two sides of the installation slot (3) and are arranged along the length direction of the installation slot (3), and the second tooth matching part (41) comprises at least 2 fifth clamping teeth (415) which are arranged on two radial sides of the installation inserting column (4).

3. The anti-stump in-line connector according to claim 2, wherein: the two ends of the length of the mounting slot (3) are respectively provided with a semi-cylindrical or semi-conical matching cavity (32), and the first tooth matching part (31) comprises at least 1 fourth tooth (314) arranged in the corresponding matching cavity (32).

4. A hands-free plug-in connector as defined in claim 3, wherein: the number of the fourth latches (314) in each matching cavity (32) is a plurality of pieces, the fourth latches are arranged at intervals along the circumferential direction of the corresponding matching cavity (32), and the third latches (313) and the fourth latches (314) are combined into a ring.

5. The anti-snatch in-line connector of claim 4, wherein: the number of the fifth latches (415) is a plurality of pieces, and the fifth latches are arranged at intervals along the circumferential direction of the mounting inserting columns (4) and are arranged in a ring.

6. The anti-stump in-line connector of claim 1, wherein: the mounting slots (3) are arranged in a round hole;

the first tooth matching part (31) comprises a plurality of first clamping teeth (311) which are arranged along the circumferential spacing, and the second tooth matching part (41) comprises at least 1 second clamping teeth (412) which are matched between the adjacent first clamping teeth (311); or alternatively, the first and second heat exchangers may be,

the second tooth matching part (41) comprises a plurality of second teeth (412) which are arranged along the circumferential spacing, and the first tooth matching part (31) comprises at least 1 first teeth (311) matched between the adjacent second teeth (412).

7. The anti-snatch in-line connector of claim 6, wherein: the first clamping teeth (311) are arranged in a ring along the circumferential direction of the mounting slot (3), and the number of the second clamping teeth (412) is more than 2; or alternatively, the first and second heat exchangers may be,

the second latches (412) are arranged in a ring along the circumferential direction of the mounting plunger (4), and the number of the first latches (311) is more than 2.

8. An anti-snagging in-line connector according to any of claims 1-7 and wherein: the connector is characterized in that a lock catch part (11) is arranged on the shell (1), a lock catch groove (21) is arranged on the handle (2), an access opening (22) is formed in one side of the lock catch groove (21), and the lock catch part (11) enters the lock catch groove (21) through the access opening (22) and is clamped with each other in the process that the handle (2) is turned towards the closed state of the connector.

9. The anti-snatch in-line connector of claim 8, wherein: the driven component (5) comprises a first rotating seat (51), an elastic piece (52) and a second rotating seat (53), the elastic piece (52) is clamped between the first rotating seat (51) and the second rotating seat (53), the handle (2) is provided with a driving part (24), the first rotating seat (51) is provided with a first driven part (511), and the second rotating seat (53) is provided with a second driven part (531);

in the process of overturning the handle (2) towards the connector opening state, the driving part (24) acts on the first driven part (511) and the second driven part (531) to drive the first rotating seat (51) and the second rotating seat (53) to rotate.

10. The anti-stump in-line connector according to claim 9, wherein: be provided with assembly chamber (14) in casing (1), one side that casing (1) is located assembly chamber (14) is provided with curb plate (15), and one side that assembly chamber (14) deviate from curb plate (15) is the opening setting, hasp portion (11) set up on curb plate (15), hasp groove (21) are the opening setting towards one side of curb plate (15), handle (2) are located and are driven between portion (511) and second driven portion (531) and are provided with spacing rib (25).