CN209573484U - A kind of wearable electronic and watchband - Google Patents

Abstract

The utility model discloses a kind of wearable electronic, including equipment body and with body.Wherein, the both ends of equipment body are connected separately with band body, and at least one end of equipment body has axis with corresponding band body alternative one, and another one has clamp, and clamp has through slot, and through slot is matched with axis, and width of rebate is less than inner width.There is bayonet in the middle part of axis, snap-lock member is provided in clamp, snap-lock member is caught in bayonet to carry out axial limiting to axis when releasing, axis is inserted into or deviates from through slot when snap-lock member bounces back.The invention also discloses a kind of watchband, including above-mentioned clamp, above-mentioned snap-lock member is provided in clamp.The wearable electronic and watchband, disassembly and installation process with body and equipment body are simple and convenient, convenient for the quick-replaceable with body, to meet the diversified demand of different user.

Description

A kind of wearable electronic and watchband

Technical field

The utility model relates to technical field of electronic equipment also to relate to more specifically to a kind of wearable electronic And a kind of watchband.

Background technique

Wearable electronic, such as motion bracelet become the essential personal product of many people, generally comprise Equipment body with body.By taking bracelet or wrist-watch as an example, another money bracelet or wrist-watch product will meet the individual wrist of global people Size requires or individual needs, just must have corresponding watchband replacement.

Meanwhile with the gradual improvement of people's living standard, people no longer content just to the article of " can be used ", It gradually follows the fashion, individual character, if can easily replace watchband with equipment bodies such as a bracelet or wrist-watches, people can be met This specific demand.However, the equipment body of existing wearable electronic is mostly to be fixedly connected with watchband, it is difficult to meet The requirement of above-mentioned portable dismounting.

In conclusion the equipment body and watchband dismounting that how to efficiently solve wearable electronic are difficult, it is full to be difficult to The problems such as diversified demand of sufficient different user is current those skilled in the art's problem to be solved.

Utility model content

In view of this, first of the utility model is designed to provide a kind of wearable electronic, the wearable electricity The structure design of sub- equipment can efficiently solve equipment body and watchband dismounting difficulty, be difficult to meet the diversification of different user Second purpose of the problem of demand, the utility model are to provide a kind of watchband.

In order to reach above-mentioned first purpose, the utility model is provided the following technical solutions:

A kind of wearable electronic, including equipment body, the both ends of the equipment body are connected separately with band body, described At least one end of equipment body has axis with the corresponding band body alternative one, and another one has clamp, the clamp tool There is the through slot matched with the axis, the width of rebate of the through slot is less than inner width, has bayonet in the middle part of the axis, Snap-lock member is provided in the clamp, the snap-lock member is caught in the bayonet to carry out axial limit to the axis when releasing Position, the axis is inserted into or deviates from the through slot when snap-lock member bounces back.

Preferably, in above-mentioned wearable electronic, mounting hole, the snap-lock member are offered on the cell wall of the through slot Including the clamping lock block being slidably mounted in the mounting hole, the clamping lock block, which can be pushed out to, protrudes from the cell wall and locking, And it can bounce back within the cell wall.

Preferably, in above-mentioned wearable electronic, elastic component, the both ends point of the elastic component are installed in the clamp It does not offset with the clamping lock block and the clamp, clamping lock block elastic component generation shape when bouncing back within the cell wall Become, the restoring force of the elastic component pushes the clamping lock block to protrude from the cell wall when discharging the clamping lock block.

Preferably, in above-mentioned wearable electronic, the clamping lock block is fixedly connected with push rod, and the push rod is slidably installed In in the clamp, and when push rod is pressed or lifted clamping lock block bounces back within the cell wall respectively or protrudes from institute State cell wall.

Preferably, in above-mentioned wearable electronic, the top of the push rod protrudes from the clamp.

Preferably, in above-mentioned wearable electronic, the top of the push rod protrudes from the front of the clamp.

Preferably, in above-mentioned wearable electronic, the outside wall surface of the axis is arc surface, and the cell wall of the through slot is With the consistent arc surface of outside wall surface shape of the axis.

Preferably, in above-mentioned wearable electronic, the middle part of the axis is disconnected, and the opening of disconnection forms the card Mouthful.

Preferably, it in above-mentioned wearable electronic, is opened on the band body or the equipment body with the axis Equipped with avoiding hollow groove, the clamp can rotate in the avoiding hollow groove using the axis as shaft.

Wearable electronic provided by the utility model includes equipment body and with body.Wherein, the both ends of equipment body It is connected separately with band body, at least one end of equipment body has axis with corresponding band body alternative one, and another one has clamp, Clamp has through slot, and through slot is matched with axis, and width of rebate is less than inner width.There is bayonet, in clamp in the middle part of axis It is provided with snap-lock member, snap-lock member is caught in bayonet to carry out axial limiting, axis when snap-lock member bounces back to axis when releasing It is inserted into or deviates from through slot.

Using wearable electronic provided by the utility model, both at least one end of equipment body and corresponding band body One of have axis, another one have clamp.When belt removal body, snap-lock member retraction is set to exit bayonet first, so that axis energy It is enough to be moved along through slot, and then external force is deviate from axis by the side of through slot, and the disassembly with body is completed.When installation band body, then So that snap-lock member retraction is exited bayonet, axis is then inserted into through slot by the side of through slot, until snap-lock member and bayonet phase Clock synchronization then snap-lock member pushing out card card inlet.One side axis is inserted into through slot, and the width of rebate of through slot is less than inner width, limit Having made axis cannot be deviate from by notch, and on the other hand, the cooperation of snap-lock member and bayonet limits axis and clamp in the axial direction Displacement, and then axis is limited in card slot and cannot deviate from, so that equipment body be connect with body, dress band body process is complete At.Above-mentioned disassembly and installation process are simple and convenient, convenient for the quick-replaceable with body, to meet the diversified demand of different user.

In order to reach above-mentioned second purpose, the utility model is provided the following technical solutions:

A kind of watchband, for connect with equipment body, including clamp, the clamp with for the equipment body The through slot of axis cooperation, the width of rebate of the through slot are less than inner width, are provided with snap-lock member, the card in the clamp Lock assembly is caught in the bayonet in the middle part of the axis to carry out axial limiting to the axis, when the snap-lock member bounces back when releasing The axis is inserted into or deviates from the through slot.

The watchband first makes snap-lock member retraction exit bayonet, then by axis by through slot when connecting with equipment body Through slot is inserted into side, until then snap-lock member pushing out card card inlet when snap-lock member is opposite with bayonet, completes the installation of watchband.It tears open When unloading, same that snap-lock member retraction need to only be made to exit bayonet, so that axis can be moved along through slot, and then external force is in axis Deviate from by the side of through slot, the disassembly of watchband can be completed.Above-mentioned disassembly and installation process are simple and convenient, convenient for the quick of watchband Replacement.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the overlooking structure diagram of the wearable electronic of one specific embodiment of the utility model；

Fig. 2 is the partial enlargement diagram of Fig. 1；

Fig. 3 is the positive structure diagram with body assembled state；

Fig. 4 is the partial enlargement diagram of Fig. 2；

Fig. 5 is the positive structure diagram with body disassembly status；

Fig. 6 is the partial enlargement diagram of Fig. 5；

Fig. 7 is band body mounting means schematic diagram.

It is marked in attached drawing as follows:

101, band body, 102, clamp, 201, snap-lock member, 301, push rod, 302, elastic component, 303, clamping lock block, 401, set Standby main body, 402, axis, 403, avoiding hollow groove, 404, bayonet.

Specific embodiment

The utility model embodiment discloses a kind of wearable electronic, in order to the quick-replaceable of watchband, Jin Erman The individual demand of sufficient different user.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-Fig. 2 is please referred to, Fig. 1 is the plan structure of the wearable electronic of one specific embodiment of the utility model Schematic diagram；Fig. 2 is the partial enlargement diagram of Fig. 1.

In a specific embodiment, wearable electronic provided by the utility model includes equipment body 401 and band Body 101.

Wherein, the both ends of equipment body 401 are connected separately with band body 101, it should be noted that herein both include equipment master 401 both ends of body are connect with the same both ends with body 101 respectively, and also the both ends including equipment body 401 are connected separately with different Band body 101.Equipment body 401 is specifically as follows bracelet main body, wrist-watch main body etc., and specific structure can refer to the prior art, this Place repeats no more.

At least one end of equipment body 401 has axis 402 with corresponding 101 alternative one of band body, and another one has card First 102.Namely at least one end of equipment body 401 is removably fixedly connected with corresponding band body 101, is specifically as follows and is set At least one end of standby main body 401 has an axis 402, and corresponding one end with body 101 has a clamp 102, or can also be with There is clamp 102 at least one end of main body is arranged, corresponding one end with body 101 has axis 402.For the ease of saying Bright, axis 402 has been set on equipment body 401 in attached drawing and embodiment below, and clamp 102 is set on band body 101 For illustrate.As needed, the setting position of axis 402 and clamp 102 in following embodiment can also be exchanged.

Clamp 102 has through slot, and through slot is matched with axis 402, and width of rebate is less than inner width.It needs to illustrate It is that width of rebate is less than inner width, it is tapered to width of rebate is specifically as follows slot bottom, or the width of notch is less than logical The maximum width of slot, so set, the width due to notch is smaller, so that axis 402 cannot be deviate from after being inserted into through slot by notch. The specific insertion of axis 402 is detached from through slot and can be inserted into or be detached from by one end of through slot, when through slot or so extends, that is, from logical The left or right of slot is inserted into or is detached from.Clamp 102 has through slot, through slot, that is, recess portion, and corresponding axis 402 has protrusion, convex Portion is mutually chimeric with recess portion, when be applied to body 101 perpendicular to axis 402 pulling force when, it is chimeric due to the two mechanism, and make band Body 101 is unlikely to fall off.

There is bayonet 404 in the middle part of axis 402, snap-lock member 201 is provided in clamp 102, snap-lock member 201 blocks when releasing Card inlet 404 is to carry out axial limiting to axis 402, and axis 402 is inserted into or deviates from through slot when snap-lock member 201 bounces back. By the setting of axis 402 and through slot, so that axis 402 can be only axially moveable with clamp 102.Further pass through lock part The axial displacement of both cooperation limitations of part 201 and bayonet 404, avoids axis 402 from being deviate from by the both ends of through slot, to realize card Effective connection of axis 402 and clamp 102.The specific structure of snap-lock member 201 can be set as needed, and make it possible to release and block Mouth 404 is clamped, and can be bounced back to exit bayonet 404, and axis 402 is moved along through slot.Herein exit bayonet 404 The stuck point that finger snap-lock member 201 bounces back to snap-lock member 201 is decreased below the minimum point on 402 convex surface of axis, and then axis 402 It is inserted into or deviates from through slot.Snap-lock member 201 is specifically configured to that release location can be locked in, and then can protect without external force Hold the connection of axis 402 and bayonet 404.

Using wearable electronic provided by the utility model, at least one end of equipment body 401 and corresponding band body 101 alternative one have axis 402, and another one has clamp 102.It please refers to Fig. 5-6, when belt removal body 101, makes clamping lock first The retraction of component 201 exits bayonet 404 so that axis 402 can be moved along through slot, and then external force in axis 402 by through slot Side abjection, complete the disassembly with body 101.Please referring to Fig. 3-4 and Fig. 7 then first makes snap-lock member 201 when installation is with body 101 Retraction exits bayonet 404, axis 402 is then inserted into through slot by the side of through slot, until snap-lock member 201 and 404 phase of bayonet Clock synchronization then 201 pushing out card card inlet 404 of snap-lock member, one side axis 402 are inserted into through slot, and the width of rebate of through slot be less than it is interior Portion's width, and then limit axis 402 and cannot be deviate from by notch, on the other hand, the cooperation of snap-lock member 201 and bayonet 404 limits Axis 402 and the displacement of clamp 102 in the axial direction are made, and then axis 402 is limited in card slot and cannot deviate from, to will set Standby main body 401 is connect with body 101, and dress band 101 process of body is completed.Above-mentioned disassembly and installation process are simple and convenient, convenient for band body 101 quick-replaceable, to meet the diversified demand of different user.

Further, mounting hole is offered on the cell wall of through slot, and clamping lock block 303, clamping lock block are slidably fitted in mounting hole 303 can be pushed out to and protrude from cell wall and locking, and can bounce back within cell wall.Namely snap-lock member 201 includes sliding The clamping lock block 303 being installed in mounting hole, clamping lock block 303 are moved up and down along mounting hole, are protruded from when it is moved to along mounting hole It is inserted into when cell wall in bayonet 404, to carry out axial limiting to axis 402, and clamping lock block 303 can be locked in protrusion position It sets, effective connection of axis 402 Yu clamp 102 can be kept without external force.And when belt removal body 101, then it first releases The locking of clamping lock block 303 then makes clamping lock block 303 bounce back and axis 402 is pushed to be deviate from by one end of through slot.Pass through clamping lock block 303 release for moving realization clamping lock block 303 or retraction along mounting hole, the setting structure of clamping lock block 303 is simple, easy to process, Cost is relatively low, and is capable of providing and is reliably connected with bayonet 404.As needed, snap-lock member 201 also may include telescopic rod Part realizes release and retraction by the overhanging of stretchy rod itself and retraction, but structure is relative complex.

Further, elastic component 302 is installed in clamp 102, the both ends of elastic component 302 respectively with clamping lock block 303 and Clamp 102 offsets, and deformation occurs for elastic component 302 when clamping lock block 303 bounces back within cell wall, elastic component when discharging clamping lock block 303 302 restoring force push card closing piece 303 protrudes from cell wall.By the setting of elastic component 302, make clamping lock block 303 in external force When retraction elastic component 302 occur flexible deformation, generate restoring force, and then when clamping lock block 303 is released elastic component 302 reply It pushes dynamic clamping lock block 303 to reset, that is, 302 push card closing piece 303 of elastic component protrudes from cell wall, is locked at the position It sets, is clamped with bayonet 404.Clamping lock block 303 is locked to the position for protruding from cell wall by elastic component 302, structure is simple, and bullet Property part 302 can push card closing piece 303 automatically reset, further simplify user's operation.Elastic component 302 is specifically as follows spring, Such as compressed spring, then the both ends of compressed spring offset with clamping lock block 303 and clamp 102 respectively, and clamping lock block 303 is further when bouncing back Compressed spring is compressed, when external force discharges clamping lock block 303, the restoring force push card closing piece 303 of compressed spring protrudes from cell wall.

Specifically, first external force overcomes the elastic force of elastic component 302 that clamping lock block 303 is made to bounce back in installation band body 101, Then axis 402 is inserted into through slot by one end of through slot, until clamping lock block 303 and bayonet 404 are opposite, then release is outer Power, then clamping lock block 303 automatically resets under the restoring force effect of elastic component 302, that is, elastic component 302 pushes up clamping lock block 303 It rises to the cell wall for protruding from through slot, is engaged with being caught in into bayonet 404, realize the axial limiting to axis 402.And it is dismantling Band body 101 when, the elastic force push card closing piece 303 for also only needing external force first to overcome elastic component 302 bounce back, then promotion axis 402 by One end of through slot is deviate from, and the disassembly with body 101 Yu equipment body 401 is completed.

The case where being explained above 303 locking of clamping lock block protrusion and cell wall through elastic component 302, can set as needed Release position and retraction position can be removably fixedly connected on respectively by being set to clamping lock block 303, and clamping lock block is such as corresponded on clamp 102 303 protrude from the position of cell wall and the fixed parts such as buckle are respectively set in retraction position, and clamping lock block 303 is dismountable solid respectively Surely it is connected to the position for protruding from cell wall and retraction position, the locking to clamping lock block 303 also may be implemented, to guarantee clamp 102 With being reliably connected for axis 402.

For the ease of external force in clamping lock block 303, clamping lock block 303 is fixedly connected with push rod 301, the sliding peace of push rod 301 Loaded in clamp 102, and when push rod 301 is pressed or lifted, clamping lock block 303 bounces back within cell wall respectively or protrudes from cell wall.It pushes away Bar 301 and clamping lock block 303 are specifically as follows integral structure, and connection is reliable, or are fixedly connected with mode by conventional The split type structure of connection.By the setting of push rod 301, when user's operation, pushes push rod 301, thus for installing clamping lock The mounting hole of block 303 can be set to blind hole.Specifically, the connection type of push rod 301 and clamping lock block 303 can make push rod 301 when pressing, and clamping lock block 303 bounces back within cell wall, and corresponding clamping lock block 303 protrudes from cell wall when push rod 301 lifts. Or push rod 301, when lifting, clamping lock block 303 bounces back within cell wall, and the corresponding clamping lock block when push rod 301 is pressed 303 protrude from cell wall.In the case where above-mentioned setting elastic component 302, then 302 push card closing piece 303 of elastic component protrudes from cell wall While, band logical push rod 301 is lifted or is pressed accordingly.

Preferably, the top of push rod 301 protrudes from clamp 102.Here protrude from clamp 102, both include push rod 301 existed Top protrudes from the case where clamp 102 when lifting, and also may include that the top when pressing of push rod 301 still protrudes from clamp 102 Situation.It is convenient for the user to operate by above-mentioned setting.

Further, the top of push rod 301 protrudes from the front of clamp 102.The front of clamp 102 refers to that clamp 102 is located at It is the front of equipment body 401 when equipment body 401, and the front when clamp 102 is located at band body 101, then with body 101.It pushes away The top of bar 301 is located at front, on the one hand convenient for the user to operate, on the other hand when equipment body 401 is worn on user, no Wearing can be caused to interfere, worn convenient for user.Certainly, the top of push rod 301 as needed, which may be set to be, protrudes from card First 102 side etc..

In the above embodiments, the outside wall surface of axis 402 is arc surface, and the cell wall of through slot is the outer wall with axis 402 The consistent arc surface of face shape.Specific axis 402 can be spherical in shape.As needed, the shape of axis 402 is also not limited to Above-mentioned shape can be accordingly arranged as needed, then the shape of through slot is accordingly arranged.

Specifically, the middle part of axis 402 disconnects, the opening of disconnection forms bayonet 404.Namely axis 402 is segmentation knot Structure, the notch between adjacent two sections of segmentation form bayonet 404, it is simple that structure are arranged such, and nicked form is also convenient for clamping lock The release of component 201 and retraction.As needed, bayonet 404 may be the hole opened up on axis 402 or slot.

On the basis of the various embodiments described above, empty avoiding is offered on band body 101 or equipment body 401 with axis 402 Slot 403, clamp 102 can be that shaft rotates in avoiding hollow groove 403 with axis 402.Namely according to the shape of clamp 102, In Avoiding hollow groove 403 is opened up on band body 101 or equipment body 401, so that clamp 102 can be shaft with axis 402 in avoiding hollow groove 403 Rotational angle of the control clamp 102 with respect to axis 402 can be specifically arranged in interior rotation by the size of avoiding hollow groove 403.Passing through will The rotation of clamp 102 can make the wearing site that user is preferably fitted in body 101, when equipment body 401 is bracelet or hand When table, then band body 101 can preferably be bonded user's wrist.For the ease of the rotation of clamp 102, it is preferred that outside clamp 102 Wall surface is in arc surface or spherical surface, and the wall surface of avoiding hollow groove 403 is in arc surface or spherical surface accordingly.It is rotated in clamp 102 around axis 402 When, snap-lock member 201 keeps effectively engaging with bayonet 404, thus preferred, and the outside wall surface of axis 402 is arc surface, through slot Cell wall is matched accordingly.Preferably, the middle part of axis 402 disconnects, and the opening of disconnection forms bayonet 404, in order to clamp 102 rotate around axis 402.Certainly, can also be arranged as needed by the other shapes of axis 402 and bayonet 404 to meet Clamp 102 is rotated around axis 402.

The utility model additionally provides a kind of watchband, is used to connect with equipment body 401, including clamp 102, clamp 102 It is less than inner width with the width of rebate for the through slot with the cooperation of the axis 402 of equipment body 401, through slot, in clamp 102 It is provided with snap-lock member 201, snap-lock member 201 is caught in the bayonet 404 at 402 middle part of axis to carry out axis to axis 402 when releasing To limit, axis 402 is inserted into or deviates from through slot when snap-lock member 201 bounces back.About clamp 102 and snap-lock member 201 The related content being specifically described in each embodiment for please referring to above-mentioned wearable electronic, details are not described herein again.

The watchband first makes the retraction of snap-lock member 201 exit bayonet 404, then by axis when connecting with equipment body 401 402 are inserted into through slot by the side of through slot, until then the release of snap-lock member 201 is caught in card when snap-lock member 201 is opposite with bayonet 404 Mouth 404, completes the installation of watchband.It is same that the retraction of snap-lock member 201 need to only be made to exit bayonet 404 when disassembly, so that axis 402 It can be moved along through slot, and then external force is deviate from axis 402 by the side of through slot, and the disassembly of watchband can be completed.It is above-mentioned Disassembly and installation process are simple and convenient, convenient for the quick-replaceable of watchband.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. the both ends of a kind of wearable electronic, including equipment body (401), the equipment body (401) are connected separately with Band body (101), which is characterized in that at least one end of the equipment body (401) and corresponding band body (101) alternative one With axis (402), another one has clamp (102), and the clamp (102) has what is matched with the axis (402) to lead to Slot, the width of rebate of the through slot are less than inner width, have bayonet (404) in the middle part of the axis (402), the clamp (102) it is provided with snap-lock member (201) in, the snap-lock member (201) is caught in the bayonet (404) to the card when releasing Axis (402) carries out axial limiting, and the axis (402) is inserted into or deviates from described logical when the snap-lock member (201) bounces back Slot.

2. wearable electronic according to claim 1, which is characterized in that offer installation on the cell wall of the through slot Hole, the snap-lock member (201) include the clamping lock block (303) being slidably mounted in the mounting hole, clamping lock block (303) energy It is enough pushed out to and protrudes from the cell wall and locking, and can bounce back within the cell wall.

3. wearable electronic according to claim 2, which is characterized in that installation is flexible in the clamp (102) The both ends of part (302), the elastic component (302) offset with the clamping lock block (303) and the clamp (102) respectively, the card Deformation occurs for the elastic component (302) when bouncing back within the cell wall for closing piece (303), discharges clamping lock block (303) the when institute The restoring force for stating elastic component (302) pushes the clamping lock block (303) to protrude from the cell wall.

4. wearable electronic according to claim 2, which is characterized in that the clamping lock block (303) is fixedly connected with Push rod (301), the push rod (301) are slidably mounted in the clamp (102), and when the push rod (301) is pressed or lifted The clamping lock block (303) bounces back within the cell wall respectively or protrudes from the cell wall.

5. wearable electronic according to claim 4, which is characterized in that the top of the push rod (301) protrudes from The clamp (102).

6. wearable electronic according to claim 5, which is characterized in that the top of the push rod (301) protrudes from The front of the clamp (102).

7. wearable electronic according to claim 1, which is characterized in that the outside wall surface of the axis (402) is circle Cambered surface, the cell wall of the through slot are the consistent arc surface of outside wall surface shape with the axis (402).

8. wearable electronic according to claim 1, which is characterized in that the middle part of the axis (402) disconnects, and breaks The opening opened forms the bayonet (404).

9. wearable electronic according to claim 1-8, which is characterized in that have the axis (402) The band body (101) or the equipment body (401) on offer avoiding hollow groove (403), the clamp (102) can be with described Axis (402) is shaft rotation in the avoiding hollow groove (403).

10. a kind of watchband, for being connect with equipment body (401), which is characterized in that including clamp (102), the clamp (102) have for the through slot with the cooperation of the axis (402) of the equipment body (401), the width of rebate of the through slot is less than Inner width, the clamp (102) is interior to be provided with snap-lock member (201), and the snap-lock member (201) is caught in the card when releasing Bayonet (404) in the middle part of axis (402) is to carry out axial limiting, snap-lock member (201) retraction when institute to the axis (402) It states axis (402) and is inserted into or deviates from the through slot.