CN209786262U

CN209786262U - Coupler with self-locking function

Info

Publication number: CN209786262U
Application number: CN201920795078.5U
Authority: CN
Inventors: 赵海杰; 潘俊; 周涛
Original assignee: Zhejiang Dawei Electronic Co Ltd
Current assignee: Zhejiang Dawei Electronic Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2019-12-13
Anticipated expiration: 2029-05-29

Abstract

the utility model provides a take coupler of self-locking function, including last coupler and lower coupler, last coupler including the plug, lower coupler including the jack, lower coupler on be provided with the sliding closure, sliding closure and jack when closed cover its formation, sliding closure and lower coupler between be provided with auto-lock subassembly and reset spring, the auto-lock subassembly including tapered end and lockhole, the tapered end flexible setting on the sliding closure, the lockhole setting on the inner wall of coupler under, and the lockhole corresponds the tapered end position setting when sliding closure and jack are closed, the plug on return the strong magnet that contracts including the drive tapered end, reset spring be used for compressing tightly the sliding closure in with jack closed position department. The utility model provides a low coupler of taking self-locking function of technology degree of difficulty.

Description

Coupler with self-locking function

Technical Field

The utility model relates to a coupler, especially a coupler for white small household electrical appliances.

Background

The coupler is an electronic component commonly found in various small household appliances, such as electric kettles, soybean milk makers, coffee makers and the like. The household appliance power supply device generally comprises an upper coupler and a lower coupler, wherein the upper coupler is arranged on a household appliance, a plug is arranged on the upper coupler, a jack is correspondingly arranged on the lower coupler, the lower coupler is communicated with a power supply, and the lower coupler is inserted into the jack through the plug so as to realize the transmission of electricity and signals.

However, in order to prevent the user from getting an electric shock accidentally, the jacks on the lower coupler are usually small in size, and 4 to 6 jacks are needed, which increases the difficulty of the manufacturing process.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a take self-locking function's coupler that the technology degree of difficulty is low.

In order to achieve the above object, the utility model provides a coupler with self-locking function, including last coupler and lower coupler, last coupler including the plug, lower coupler including the casing of taking the jack, lower coupler on be provided with the sliding closure, sliding closure and jack when closed cover its formation, sliding closure and lower coupler between be provided with auto-lock subassembly and reset spring, the auto-lock subassembly including tapered end and lockhole, the tapered end flexible setting on the sliding closure, the lockhole setting on the inner wall of coupler down, and the lockhole corresponds the tapered end position setting when sliding closure and jack are closed, the plug on return the strong magnet that contracts including the drive tapered end, reset spring be used for compressing tightly the sliding closure in with jack closed position department.

The technical scheme has the advantages that: through setting up the tapered end on the sliding closure and setting up the lockhole on coupler inner wall down to the lockhole corresponds tapered end position setting when sliding closure and jack are closed, with the sliding closure locking with jack closed position, thereby make the sliding closure cover the jack formation, can prevent that the user from accidentally electrocuteeing, compare prior art, through reducing the jack size, and set up the mode of a plurality of jacks, under its condition that can guarantee the security, great reduction technology degree of difficulty.

The utility model discloses can further set up to: the spring that pushes the tapered end towards the lockhole direction is supported to be equipped with between tapered end and the sliding closure, the spring be the tower form, and the spring sets up towards the lockhole direction and diminishes the setting.

Through further arrangement, after the upper coupler and the lower coupler are separated, the lock head is pushed to the lock hole by the elastic force of the spring, and the sliding cover is locked at the closing position of the jack.

the utility model discloses can further set up to: the number of the self-locking assemblies is two, and the two self-locking assemblies are symmetrically arranged along the center point of the sliding cover.

Through further setting, when receiving external force and pressing, because the auto-lock subassembly is two, and sets up along lid central point symmetry, can avoid the sliding closure to take place crooked, guarantees the stability of product.

The utility model discloses can further set up to: the sliding cover comprises a directional hole and a limiting block, the directional hole is communicated with the lock hole, one end of the lock head can be slidably arranged in the directional hole, and the limiting block is arranged between the two lock heads.

Through further setting, the stopper setting prevents that the tapered end from excessively contracting between two tapered ends, leads to the one end of tapered end to deviate from the directional hole, and the setting of directional hole can guarantee that the tapered end aims at the lockhole all the time.

The utility model discloses can further set up to: the lower coupler comprises a guide wall, the guide wall is arranged on a motion path of the lock head, and the guide wall is connected with the lock hole.

through further setting, when the upper coupler and the lower coupler are separated too fast, the lock head can enter the lock hole along the guide wall under the condition that the lock head pops out in advance when the sliding cover is not in a position closed by the jack.

Drawings

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

Fig. 2 is a perspective view of an upper coupler in an embodiment of the present invention;

Fig. 3 is a top view of a lower coupler in an embodiment of the present invention;

Fig. 4 is a cross-sectional view of the embodiment of the present invention shown in fig. 3 (B-B);

Fig. 5 is a schematic view of an inner wall of a jack in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sliding cover according to an embodiment of the present invention.

Detailed Description

The embodiment of the coupler with self-locking function of the utility model is shown in figures 1-6: the coupler comprises an upper coupler 1 and a lower coupler 2, wherein the upper coupler 1 comprises a plug 11, the lower coupler 2 comprises a jack 21, a sliding cover 3 is arranged on the lower coupler 2, the sliding cover 3 and the jack 21 form a covering effect when closed, a self-locking assembly and a reset spring 4 are arranged between the sliding cover 3 and the lower coupler 2, the self-locking assembly comprises a locking head 51 and a locking hole 52, the locking head 51 is arranged on the sliding cover 3 in a telescopic mode, the locking hole 52 is arranged on the inner wall of the lower coupler 2, the locking hole 52 corresponds to the position of the locking head 51 when the sliding cover 3 and the jack 21 are closed, the plug 11 comprises a strong magnet 111 for driving the locking head 51 to retract, and the reset spring 4 is used for pressing the sliding cover 3 at the position closed with the jack 21. A spring 53 for pushing the lock head 51 towards the lock hole 52 is arranged between the lock head 51 and the sliding cover 3 in a propping manner, the spring 53 is tower-shaped, and the spring 53 is arranged to be gradually smaller towards the lock hole 52. The number of the self-locking assemblies is two, and the two self-locking assemblies are symmetrically arranged along the center point of the sliding cover 3. In this embodiment, the two locking heads are made of soft magnetic materials, and are prevented from being attracted to each other due to magnetization after the upper coupler and the lower coupler are separated by the characteristic that the soft magnetic materials are easy to demagnetize. The sliding cover 3 includes a directional hole 31 and a limiting block 32, the directional hole 31 is communicated with the lock hole 52, one end of the lock head 51 can be slidably inserted into the directional hole 31, and the limiting block 32 is disposed between the two lock heads 51. In this embodiment, the sliding cover 3 includes the clamping arm 33, the locking head 51 on extend and be provided with annular protrusion 511, the spring 53 cover establish on the locking head 51, and the one end of spring 53 offsets with annular protrusion 511, the other end of spring 53 cooperates with clamping arm 33 joint. The lower coupler 2 includes a guide wall 22, the guide wall 22 is disposed on a moving path of the locking head 51, and the guide wall 22 is connected to the locking hole 52. In this embodiment, the inner wall of the lower coupler 2 further extends to form a plurality of guide sliding grooves 23, and the peripheral wall of the sliding cover 3 is correspondingly provided with protrusions 34 in sliding fit with the guide sliding grooves 23, so as to prevent the sliding cover 3 from rotating in the circumferential direction when being far away from or close to the closed position with the insertion hole 21, thereby ensuring that the lock head 51 can extend and retract along the length direction of the lock hole 52 all the time.

the above examples are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a take coupler of self-locking function, is including last coupler and lower coupler, last coupler including the plug, lower coupler including the jack, its characterized in that: the lower coupler is provided with a sliding cover, the sliding cover and the jack form a covering effect when closed, a self-locking assembly and a reset spring are arranged between the sliding cover and the lower coupler, the self-locking assembly comprises a lock head and a lock hole, the lock head is arranged on the sliding cover in a telescopic mode, the lock hole is arranged on the inner wall of the lower coupler, the lock hole corresponds to the position of the lock head when the sliding cover and the jack are closed, the plug comprises a strong magnet for driving the lock head to retract, and the reset spring is used for pressing the sliding cover at the position where the sliding cover and the jack are closed.

2. The coupler of claim 1, wherein: the spring that pushes the tapered end towards the lockhole direction is supported to be equipped with between tapered end and the sliding closure, the spring be the tower form, and the spring sets up towards the lockhole direction and diminishes the setting.

3. The coupler of claim 1 or 2, wherein: the number of the self-locking assemblies is two, and the two self-locking assemblies are symmetrically arranged along the center point of the sliding cover.

4. The coupler of claim 3, wherein: the sliding cover comprises a directional hole and a limiting block, the directional hole is communicated with the lock hole, one end of the lock head can be slidably arranged in the directional hole, and the limiting block is arranged between the two lock heads.

5. The coupler of claim 1, 2 or 4, wherein: the lower coupler comprises a guide wall, the guide wall is arranged on a motion path of the lock head, and the guide wall is connected with the lock hole.