CN217985129U

CN217985129U - Clamping support

Info

Publication number: CN217985129U
Application number: CN202221637867.4U
Authority: CN
Inventors: 赖鸿龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-12-06
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to the technical field of electronic accessories, in particular to a clamping bracket, which comprises a shell, a rotating device movably arranged on the shell, and at least two clamping arms movably arranged at the two opposite ends of the shell; the rotating device comprises a rotating disc and a clutch mechanism which are matched with each other, the clutch mechanism comprises a gear, the gear is movably connected with the rotating disc, the clamping arms respectively comprise meshing parts matched with the gear, and when the rotating disc is rotated, the rotating disc drives the gear to rotate so as to enable the clamping arms arranged at the two opposite ends of the shell to be close to or far away from each other; clutch mechanism still includes first locking part, is provided with the second locking part with first locking part complex on casing or the centre gripping arm, and first locking part cooperates in order to realize pinning gear or centre gripping arm with second locking part. The centre gripping support accessible rotates the carousel and then drives centre gripping arm centre gripping cell-phone by the gear to wherein still be provided with first locking portion and the cooperation of second locking portion in order to stabilize centre gripping arm centre gripping cell-phone.

Description

Clamping support

[ technical field ] A

The utility model relates to an electronic components technical field, in particular to centre gripping support.

[ background of the invention ]

Electronic equipment support in market, especially on-vehicle cell phone stand, the mode that uses the extension spring to pull the centre gripping arm to come to carry out the centre gripping of top and bottom to the cell-phone more, but this kind of structure needs the manpower to stimulate the centre gripping arm and opens the mode of putting into the cell-phone again and exists and use inconveniently, present newest technique makes for the positive rotation that uses manual carousel to drive just to press from both sides the centre gripping arm and carries out the centre gripping and the mode of loosening the centre gripping of rotating manual carousel in the opposite direction, but this kind of mode is very easily influenced by the external world and makes the centre gripping arm not hard up, and then leads to the centre gripping cell-phone not firm.

[ Utility model ] content

For solving the unstable technical problem of current cell phone stand centre gripping, the utility model provides a clamping bracket.

The utility model provides a clamping bracket, which comprises a shell, a rotating device movably arranged on the shell, and at least two clamping arms movably arranged at the two opposite ends of the shell; the rotating device comprises a rotating disc and a clutch mechanism which are matched with each other, the clutch mechanism comprises a gear, the gear is movably connected with the rotating disc, the clamping arms respectively comprise meshing parts matched with the gear, when the rotating disc is rotated, the rotating disc drives the gear to rotate, so that the meshing parts of the clamping arms arranged at two opposite ends of the shell move in the opposite direction or in the opposite direction, and the clamping arms arranged at two opposite ends of the shell are further close to or far away from each other; clutch still includes first locking part, the casing or be provided with on the centre gripping arm with first locking part complex second locking part, first locking part with the cooperation of second locking part is in order to realize the pinning the gear or centre gripping arm.

Preferably, the housing includes a first housing and a second housing, the first housing and the second housing enclose to form an accommodating cavity, and the turntable is at least partially exposed out of the accommodating cavity; the clamping arm further comprises a clamping portion connected with the meshing portion, the clamping portion is located outside the accommodating cavity, and the meshing portion is located in the accommodating cavity.

Preferably, the clutch mechanism further comprises a sliding sheet, and the gear and the first locking part are respectively arranged on two opposite surfaces of the sliding sheet;

a limiting groove matched with the sliding sheet is formed in the rotary disc, a butting part is arranged in the limiting groove, at least two clamping parts are further arranged on one surface of the sliding sheet, which is provided with the first locking part, and when the rotary disc is matched with the clutch mechanism, the sliding sheet is arranged in the limiting groove; when the turntable is rotated, the abutting part abuts against the clamping part and drives the gear to rotate;

the second locking part is arranged on the second shell, an opening is further formed in the limiting groove, when the sliding sheet is arranged in the limiting groove of the rotary table, the gear faces the first shell, and the first locking part faces the second shell and is exposed out of the opening;

an inclined slide rail is arranged between the adjacent clamping parts, and when the turntable is rotated, the abutting part moves on the inclined slide rail to enable the first locking part to move axially relative to the turntable so as to enable the first locking part and the second locking part to abut against or separate from each other.

Preferably, the first housing is provided with a fixing portion, the gear is provided with a matching portion matched with the fixing portion, the fixing portion is provided with an elastic member in a surrounding manner, when the gear is mounted on the first housing, the fixing portion is matched with the matching portion to realize that the gear is rotatably connected to the first housing, and the elastic member abuts against the gear.

Preferably, the clutch mechanism further comprises a slide sheet, and the slide sheet and the first locking part are respectively arranged on two opposite surfaces of the gear;

a limiting groove matched with the sliding sheet is formed in the rotary disc, an abutting part is arranged in the limiting groove, at least two clamping parts are further arranged on one surface of the sliding sheet close to the gear, and when the rotary disc is matched with the clutch mechanism, the sliding sheet is arranged in the limiting groove; when the rotary disc is rotated, the abutting part abuts against the clamping part and drives the gear to rotate;

the second locking part is arranged on the first shell, an opening is formed in the limiting groove, and when the sliding sheet is arranged in the limiting groove of the rotary table, the gear and the first locking part face the first shell and are exposed from the opening;

an inclined slide rail is arranged between the adjacent clamping parts, and when the turntable is rotated, the abutting part moves on the inclined slide rail to enable the first locking part to move axially relative to the turntable so as to enable the first locking part and the second locking part to be abutted or separated.

Preferably, the first housing is provided with a fixing portion, a matching portion matched with the fixing portion is further formed on one surface of the gear provided with the first locking portion, and when the gear is mounted on the first housing, the fixing portion is matched with the matching portion to realize that the gear is rotatably connected to the first housing;

an elastic piece is further arranged between the sliding piece and the second shell, and two ends of the elastic piece are respectively abutted to the sliding piece and the second shell.

Preferably, the clutch structure further comprises an upper slider and a side slider abutted against the upper slider, the upper slider is abutted against the gear, and an abutting surface between the upper slider and the side slider is an inclined surface;

the first locking part is arranged on the side sliding block, and the second locking part is arranged on the meshing part of the clamping arm; a sliding groove is formed in one side, close to the rotary table, of the gear, at least two clamping parts are arranged in the sliding groove, a butting part is arranged on one side, close to the gear, of the rotary table, and when the rotary table is rotated, the butting part is butted with the clamping parts so as to drive the gear to rotate; an inclined slide rail is arranged between the adjacent clamping parts, when the rotary disc is rotated, the gear is driven to axially move relative to the rotary disc so as to abut against the upper sliding block, and the upper sliding block abuts against the side sliding block so as to lock or unlock the first locking part and the second locking part.

Preferably, a fixing groove is formed in the first housing, the upper slider and the side slider are both mounted in the fixing groove, one side of the upper slider, which is far away from the side slider, abuts against a groove wall of the fixing groove, a first elastic piece is arranged between the upper slider and a groove bottom of the fixing groove, and two ends of the first elastic piece abut against the upper slider and the fixing groove respectively;

and a second elastic piece is arranged between one side of the side sliding block, which is far away from the upper sliding block, and the groove wall of the fixed groove, and two ends of the second elastic piece are respectively abutted against the side sliding block and the groove wall of the fixed groove.

Preferably, the clutch mechanism further includes a slider, the slider abuts against the gear, the first locking portion is disposed on the slider, the second locking portion is disposed on the engaging portion of the clamping arm, a sliding groove is disposed on one side of the gear close to the turntable, at least two clamping portions are disposed in the sliding groove, an abutting portion is disposed on one side of the turntable close to the gear, and when the turntable is rotated, the abutting portion abuts against the clamping portions to drive the gear to rotate; adjacent seted up the inclined plane slide rail between the clamping part, when rotating when the carousel, drive the gear is axial motion and then butt slider axial displacement for the carousel in order to realize locking or unblock of first locking part and second locking part.

Preferably, a fixing groove matched with the sliding block is formed in the first shell, the sliding block is installed in the fixing groove, an elastic piece is arranged between the sliding block and the groove bottom of the fixing groove, and two opposite ends of the spring are respectively abutted to the sliding block and the groove bottom of the fixing groove.

Compared with the prior art, the utility model provides a pair of clamping support has following advantage:

1. the clamping bracket provided by the embodiment of the utility model comprises two clamping arms, a shell, and a clamping arm and a rotating device which are movably arranged on the shell; the rotating device comprises a rotating disc and a clutch mechanism which are matched with each other, the clutch mechanism comprises a gear, the gear is connected with the rotating disc, and racks matched with the gear are respectively arranged on the two clamping arms, so that a user can drive the gear to rotate only by rotating the rotating disc when using the mobile phone, and the two clamping arms can be driven to be close to clamp the mobile phone or be far away from the mobile phone to take down the mobile phone through the matched transmission of the gear and the racks; wherein clutching mechanism still includes first locking part, is provided with second locking part on casing or the centre gripping arm, and first locking part and second locking part cooperation are in order realizing pinning gear or centre gripping arm, and wherein pin the gear can make very firm between the centre gripping arm because the cooperation relation of the rack between gear and the centre gripping arm, and directly pin the centre gripping arm and also reach the same effect for centre gripping arm centre gripping cell-phone is also more firm.

2. The embodiment of the utility model provides a clamping bracket, casing enclose to close and form and hold the chamber, and clutch wherein holds within holding the chamber, can reach the connection relation of protection between its inside clutch and carousel, the centre gripping arm and do not receive external influence, and wherein the at least part of carousel exposes outside holding the chamber to guarantee that the user can operate and rotate the carousel and then drive centre gripping arm centre gripping cell-phone or loosen and take off the cell-phone.

3. The utility model discloses the centre gripping support that the first embodiment provided, clutching mechanism is through setting up inclined plane slide rail in clamping part on the gleitbretter, set up butt portion on the carousel, wherein butt portion slides on the inclined plane slide rail and can make the gear be axial motion for the carousel, and then the deciliter of second locking part on driving clutching mechanism's last first locking part and the second casing pins the gear or releases the gear in order to realize, and through setting up clamping part, make butt clamping part of carousel can drive the gear and together rotate, and then realize the centre gripping and the separation that drive clamping part.

4. The utility model discloses the clamping support that the first embodiment provided still is provided with the fixed part on first casing, and the fixed part can be used to the position of fixed gear, also realizes the rotatable of gear simultaneously, in order to guarantee to apply elastic force for clutching mechanism through setting up the elastic component for but elastic component resilience force clutching mechanism makes the cooperation of first locking portion and second locking portion in order to pin the gear, in order to keep the current clamping arm's clamping state.

5. The utility model discloses the centre gripping support that the second embodiment provided, wherein clutching mechanism still includes the gleitbretter, and gleitbretter and first locking part set up respectively in the relative two sides of gear, and second locking part wherein sets up on the first casing, understandably, when rotating the carousel and making butt portion slide to the peak of bevel face slide rail, conflict gleitbretter for carousel axial motion and keep away from the carousel, and compress the elastic component, first locking part and second locking part separate this moment, continue to rotate the carousel in the same direction and can drive the gear rotation; when the turntable rotates to enable the abutting part to slide from the highest point to the lowest point on the inclined plane slide rail, the elastic piece can apply an acting force to the slide sheet to enable the slide sheet to be far away from the second shell, namely, the first locking part is close to the second shell, the first locking part is close to the second locking part to complete matching and locking of the gear, and at the moment, the gear cannot rotate under the condition that the turntable is not rotated, namely, the current state of the clamping arm is kept, and the clamping arm is not easily influenced by the outside.

6. The utility model discloses a clamping bracket that third embodiment provided, wherein upper sliding block and side slider are installed in the fixed slot, the fixed slot is used for fixing the position of upper sliding block and side slider, wherein rotate the carousel and make butt portion when the peak of inclined plane slide rail is gone up to on inclined plane slide rail in the last sliding portion, make the gear separate with the carousel for carousel axial motion, the gear is the upper sliding block of further contradicting again, the upper sliding block is close to first casing and compresses first elastic component, at this moment, there is upper sliding block butt side slider again, because the ground interface between upper sliding block and the side slider is the inclined plane, therefore the upper sliding block can butt side slider makes side slider lateral motion, and compress the second spring, make first locking portion and second locking portion separate, meshing portion at this moment is then not blocked by the piece sideslip, continue to rotate the carousel with the same direction again and can rotate the gear and make the centre gripping arm remove; when rotating the carousel towards another direction, butt portion slides to the minimum from the peak on the inclined plane slide rail, because first elastic component applys the effort for the top shoe and makes the top shoe butt gear and make the gear be close to the carousel, second elastic component this moment still applys an effort for the side slider and makes first locking portion and the cooperation of second locking portion completion on the side slider in order to pin the centre gripping arm, has realized the cooperation completion of first locking portion and second locking portion promptly and has pinned the purpose of centre gripping arm current state.

7. In the clamping bracket according to the third embodiment of the present invention, the fixing groove is used to fix the sliding block, when the turntable is rotated, the abutting portion slides on the inclined slide rail to the highest point of the inclined slide rail, so that the gear is separated from the turntable with respect to the axial movement of the turntable, the gear further abuts against the sliding block, the sliding block is close to the first housing and compresses the first elastic member, so that the first locking portion and the second locking portion are separated, and the rotation of the turntable in the same direction is continued, so that the gear can be rotated to move the clamping arm; when the rotary table is rotated towards the other direction, the abutting part slides to the lowest point from the highest point on the inclined slide rail, the first elastic piece exerts acting force on the sliding block to enable the sliding block to abut against the gear and enable the gear to be close to the rotary table, and at the moment, the first locking part and the second locking part are matched to lock the clamping arm.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a clamping bracket according to a first embodiment of the present invention.

Fig. 2 is a first schematic view of an explosion structure of a clamping bracket according to a first embodiment of the present invention.

Fig. 3 is a schematic diagram of an explosion structure of a clamping bracket according to a first embodiment of the present invention.

Fig. 4 is an exploded view of a rotating device of a clamping bracket according to a first embodiment of the present invention.

Fig. 5 is a schematic structural view of a clutch mechanism of a clamping bracket according to a first embodiment of the present invention.

Fig. 6 is an exploded view of a clamping bracket according to a second embodiment of the present invention.

Fig. 7 is a schematic structural view of a clutch mechanism of a clamping bracket according to a second embodiment of the present invention.

Fig. 8 is a schematic diagram illustrating an explosion structure of a rotating device of a clamping bracket according to a second embodiment of the present invention.

Fig. 9 is a schematic diagram illustrating an explosion structure of a rotating device of a clamping bracket according to a second embodiment of the present invention.

Fig. 10 is a schematic cross-sectional view of a clamping bracket according to a third embodiment of the present invention.

Fig. 11 is an exploded view of a clamping bracket according to a third embodiment of the present invention.

Fig. 12 is a schematic structural view of a clutch mechanism of a clamping bracket according to a third embodiment of the present invention.

Fig. 13 is a schematic structural view of a gear of a clamping bracket according to a third embodiment of the present invention.

Fig. 14 is a schematic cross-sectional view of a clamping bracket according to a third embodiment of the present invention.

Fig. 15 is a schematic cross-sectional view of a clamping bracket according to a fourth embodiment of the present invention.

Fig. 16 is a first schematic view illustrating an explosive structure of a clamping bracket according to a fourth embodiment of the present invention.

Fig. 17 is a schematic structural view of a clamping arm of a clamping bracket according to a fourth embodiment of the present invention.

The attached drawings indicate the following:

1. clamping the bracket; 2. clamping the bracket; 3. clamping the bracket; 4. clamping the bracket;

10. a housing; 20. a clamp arm; 30. a rotating device;

101. a first housing; 102. a second housing; 201. a clamping portion; 202. an engaging portion; 301. a turntable; 302. a clutch mechanism.

1011. A fixed part; 1012. an elastic member; 1013. a first elastic member; 1014. a second elastic member; 1015. fixing grooves; 1021. a second lock portion; 2021. A rack; 3011. a limiting groove; 3012. an abutting portion; 3013. an opening; 3021. A gear; 3022. sliding blades; 3023. a first locking portion; 3024. an upper slide block; 3025. the sideslip is fast; 3026. a slider;

30221. a locking part; 30222. an inclined plane slide rail; 30223. a chute.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It is to be noted that the terms "first" and "second" and the like in the description and the claims of the present invention are used for distinguishing different objects, and are not used for describing a specific order.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 and 2, a first embodiment of the present invention provides a clamping bracket 1, which includes a housing 10, a rotating device movably disposed on the housing 10, and at least two clamping arms 20 movably disposed on opposite sides of the housing; the rotating device 30 comprises a rotating disc 301 and a clutch mechanism 302 which are matched with each other, the clutch mechanism 302 comprises a gear 3021, the gear 3021 and the rotating disc 301 are movably connected and coaxial, the clamping arms 20 respectively comprise meshing parts 202 matched with the gear 3021, and when the rotating disc 301 is rotated, the rotating disc 301 drives the gear 3021 to rotate, so that the meshing parts 202 of the clamping arms 20 arranged at two opposite ends of the shell 10 move towards or away from each other, and further the clamping arms 20 arranged at two opposite ends of the shell 10 move towards or away from each other.

The utility model provides a pair of centre gripping support 1 can be used to the centre gripping cell-phone, it is dull and stereotyped etc, the following cell-phone that uses explains as an example the utility model discloses, can understand, thereby it reaches the purpose of centre gripping cell-phone with the relative both ends of butt cell-phone respectively to set up two at least centre gripping arms 20, therefore, centre gripping arm 20 sets up in the relative both sides of casing 10, wherein the relative both ends of casing 10 can also set up the centre gripping arm 20 of different quantity, for example casing 10 one end is provided with one of them one end that a centre gripping arm 20 is used for the butt cell-phone, the other end of casing 10 is provided with two angles that two centre gripping arms 20 are used for the butt cell-phone other end respectively, can also reach the purpose of centre gripping cell-phone like this, wherein the shape size of centre gripping arm 20 does not do the injecing, wherein set up every centre gripping arm 20 on casing 10 can also be different shape sizes.

The rotating device 30 comprises a rotating disc 301, the rotating disc 301 is used for operation by a user, a clutch mechanism 302 is connected with the rotating disc 301, the clutch mechanism 302 comprises a gear 3021, when the user rotates the rotating disc 301, the gear 3021 in the clutch mechanism 302 is driven to rotate, the clamping arms 20 are provided with a meshing part 202 matched with the gear 3021, when the gear 3021 rotates, the clamping arms 20 are close to or far away from each other, wherein the close to or far away from each other of the two clamping arms 20 is realized by rotating the rotating disc 301 in different rotating directions.

Further, the housing 10 includes a first housing 101 and a second housing 102, the first housing 101 and the second housing 102 enclose to form an accommodating cavity, and the turntable 301 is at least partially exposed out of the accommodating cavity; the holding arm 20 further comprises a holding portion 201 connected to the engaging portion 202, the engaging portion 202 is provided with a rack 2021, the holding portion 201 is located outside the accommodating cavity, and the engaging portion 202 is located in the accommodating cavity.

It can be understood that, in which the clutch mechanism 302 is accommodated in the accommodating cavity, and the rotary table 301 is at least partially exposed out of the accommodating cavity, the part of the rotary table 301 located in the accommodating cavity is connected with the clutch mechanism 302, and the engaging portion 202 is provided with a rack 2021 for engaging with the gear 3021 in the accommodating cavity and the clutch mechanism 302, such a structure makes the cooperation of the rotary table 301 and the clutch mechanism 302, the cooperation of the clutch mechanism 302 and the holding arm 20 is not easily damaged by external influence, and the housing 10 also plays a role of protection.

The first casing 101 and the second casing 102 are detachably connected, so that the casing 10 can be detached for maintenance when the structural connection relationship inside the accommodating cavity of the casing 10 fails.

Referring to fig. 2 and fig. 3, in the first embodiment, the clutch mechanism 302 further includes a first locking portion 3023, a second locking portion 1021 matching with the first locking portion 3023 is disposed on the housing 10, and the first locking portion 3023 matches with the second locking portion 1021 to lock the gear 3021.

Specifically, the clutch mechanism 302 further includes a slider 3022, and a gear 3021 and a first lock portion 3023 are provided on opposite surfaces of the slider 3022, respectively.

The slide 3022, the gear 3021 and the first locking portion 3023 are integrally formed, so that the structure is more stable, and the first locking portion 3023 and the second locking portion 1021 are integrally formed, so that the gear 3021 cannot rotate when the first locking portion 3023 and the second locking portion 1021 are engaged, and the clamping of the clamping arm 20 is firmer.

Continuing to combine with fig. 3-5, further, a limit slot 3011 is formed on the rotary disc 301 and is engaged with the slide 3022, an abutting portion 3012 is formed in the limit slot 3011, at least two locking portions 30221 are further formed on a surface of the slide 3022 where the first locking portion 3023 is formed, and when the rotary disc 301 is engaged with the clutch mechanism 302, the slide 3022 is placed in the limit slot 3011; when the dial 301 is rotated, the dial is movably connected to the gear, so that the dial can rotate relative to the gear until the abutting portion 3012 abuts against the locking portion 30221, and then the gear 3021 is rotated.

It can be understood that, in the limiting slot 3011, the position of the sliding piece 3022 can be limited, so as to fix the whole clutch structure and make the turntable 301 and the clutch mechanism 302 more stable, the limiting slot 3011 is further provided with an abutting portion 3012, one surface of the sliding piece 3022 close to the turntable 301 is provided with a locking portion 30221, when the turntable 301 and the clutch structure are engaged, the sliding piece 3022 in the clutch structure is engaged with the limiting slot 3011, when the turntable 301 is rotated, the abutting portion 3012 on the turntable 301 is abutted against the locking portion 30221 on the sliding piece 3022, so that the sliding piece 3022 is also rotated together with the turntable 301, and further, the gear 3021 integrally formed with the sliding piece 3022 is rotated.

The specific shapes of the abutting portion 3012 and the locking portion 30221 are not particularly limited, and specifically, in the present embodiment, the abutting portion 3012 and the locking portion 30221 are both convex structures, and they abut to realize the engagement between the rotary disc 301 and the clutch mechanism 302.

Specifically, when the clutch structure is matched with the rotary disc 301, the slide 3022, the gear 3021 and the rotary disc 301 are coaxial, so that coaxial rotation is realized.

Further, the second lock portion 1021 is provided in the second housing 102, an opening 3013 is further provided in the limit groove 3011, when the slider 3022 is placed in the limit groove 3011 of the dial 301, the gear 3021 faces the first housing 101, the first lock portion 3023 faces the second housing 102 and is exposed from the opening 3013, a ramp slide 30222 is provided between the adjacent lock portions 30221, and when the dial 301 is rotated, the abutment portion 3012 moves on the ramp slide 30222 to axially move the first lock portion 3023 with respect to the dial 301, thereby bringing the first lock portion 3023 into abutment with or separating the second lock portion 1021.

It can be understood that the size and shape of the opening 3013 are matched with the first locking portion 3023, when the user rotates the rotary disc 301, the abutting portion 3012 of the rotary disc 301 will move on the inclined slide rail 30222 along the direction of the user rotating the rotary disc 301 until abutting against the locking portion 30221 on the slide 3022, and after abutting against the locking portion 30221, the slide 3022 will be driven to rotate together, because the slide rail is the inclined slide rail 30222, when the abutting portion 3012 moves to the highest point a of the inclined slide rail 30222, the abutting portion 3012 will also abut against the slide 3022, so that the relative distance between the slide 3022 and the rotary disc 301 is the farthest, and when the abutting portion 3012 moves to the lowest point b of the inclined slide rail 30222, the relative distance between the slide 3022 and the rotary disc 301 is the closest.

Since the turntable 301 is abutted against the second housing 102, when the turntable 301 is rotated to move the abutting portion 3012 to the highest point a of the inclined slide rail 30222, the abutting slide 3022 is far away from the turntable 301, that is, the abutting slide 3022 is far away from the second housing 102, so that the first locking portion 3023 disposed on the slide 3022 and the second locking portion 1021 disposed on the second housing 102 are relatively far away, and the first locking portion 3023 and the second locking portion 1021 are disengaged, and at this time, the rotation of the turntable 301 in the same direction is continued to rotate the gear 3021.

Further, a fixing portion 1011 is disposed on the first housing 101, a matching portion engaged with the fixing portion 1011 is disposed on the gear 3021, and an elastic member 1012 surrounds the fixing portion 1011, when the gear 3021 is mounted on the first housing 101, the fixing portion 1011 and the matching portion are engaged to rotate the gear 3021 on the first housing 101, and the elastic member 1012 abuts against the gear 3021.

It will be appreciated that the engagement between the fixing portion 1011 and the engagement portion is mainly for fixing the position of the gear 3021, and since the gear 3021 is integrally formed with the slide 3022, the slide 3022 is located in the position-limiting slot 3011 of the turntable 301, and the position of the turntable 301 is also fixed.

Alternatively, the fixing portion 1011 is provided as a protrusion, and the engaging portion is provided as a recess engaged with the protrusion; or the fixing part 1011 is arranged as a groove, and the matching part is arranged as a protrusion; specifically, in this embodiment, the fixing portion 1011 is configured as a cylindrical protrusion, and the matching portion is configured as a circular groove, so as to stabilize the position of the gear 3021, and reduce the friction force of the gear 3021 during rotation, which is more convenient for the user to use.

It can be understood that, an elastic member 1012 is surrounded on the fixing portion 1011, and two ends of the elastic member 1012 respectively abut against the first casing 101 and the gear 3021, when the user rotates the rotary table 301 to make the abutting portion 3012 move to the lowest point b on the inclined slide rail 30222, the elastic member 1012 applies a force to the gear 3021 to make the slide 3022 close to the rotary table 301, and further make the first locking portion 3023 on the slide 3022 close to the second locking portion 1021 on the second casing 102, and thus the cooperation of the first locking portion 3023 and the second locking portion 1021 is completed to lock the gear 3021.

In particular, the elastic member 1012 may be provided as a spring.

Specifically, the first locking portion 3023 is of a zigzag structure, the second locking portion 1021 is of a zigzag structure which is matched with the first locking portion 3023, the zigzag structure is of a straight-angle tooth pattern which is arranged in a chain, wherein the tooth pattern of the first locking portion 3023 and the tooth pattern of the second locking portion 1021 are matched in a manner that a right-angle side abuts against a right-angle side, and a bevel side abuts against a bevel side, so that when the first locking portion 3023 and the second locking portion 1021 are matched to lock the gear 3021, the dial 301 can be rotated to drive the gear 3021 so that the bevel side of the first locking portion 3023 applies force to the bevel side of the second locking portion 1021, and the gear 3021 can be rotated in one direction when the first locking portion 3023 and the second locking portion 1021 are matched, and if the gear 3021 is rotated in the other direction, the abutting portion 3012 on the dial 301 can be moved to the highest point a position of the inclined slide rail 30222, and the abutting can separate the first locking portion 3023 and the second locking portion 1021, so as to realize rotation in the other direction.

Referring to fig. 6 and fig. 7, compared with the mobile phone holding bracket 1 provided by the first embodiment, the holding bracket 2 provided by the second embodiment of the present invention has the following differences: the clutch mechanism 302 includes a slide 3022, a gear 3021, and a first lock portion 3023, wherein the slide 3022 and the first lock portion 3023 are respectively disposed on two opposite surfaces of the gear 3021.

Referring to fig. 7-9, further, a limiting slot 3011 is formed on the turntable 301 and is engaged with the sliding piece 3022, an abutting portion 3012 is disposed in the limiting slot 3011, at least two locking portions 30221 are further disposed on one surface of the sliding piece 3022 close to the gear 3021, when the turntable 301 is engaged with the limiting piece, the sliding piece 3022 is disposed in the limiting slot 3011; when the dial 301 is rotated, the abutting portion 3012 abuts against the locking portion 30221 to rotate the gear 3021; the second locking portion 1021 is arranged on the first casing 101, the limiting groove 3011 is also provided with an opening 3013, when the slide 3022 is arranged in the limiting groove 3011 of the turntable 301, the gear 3021 and the first locking portion 3023 face the first casing 101 and are exposed from the opening 3013; a slope rail 30222 is provided between the adjacent locking portions 30221, and when the dial 301 is rotated, the abutting portion 3012 moves on the slope rail 30222 to move the first locking portion 3023 axially with respect to the dial 301, and thus the first locking portion 3023 and the second locking portion 1021 come into abutment with each other or separate from each other.

It will be appreciated that the cooperation of the turntable 301 and the slide 3022 in the second embodiment and the cooperation of the turntable 301 and the slide 3022 in the first embodiment are identical, and that, unlike the first embodiment, when the slide 3022 is disposed in the limit groove 3011, the gear 3021 and the first latch portion 3023 are both facing the first housing 101 and exposed from the opening 3013, and the second latch portion 1021 is open to the first housing 101.

Wherein the opening 3013 is matched with the gear 3021 in shape and size to ensure that the gear 3021 is exposed from the opening 3013, and the first locking portion 3023 is disposed on the gear 3021, and when the gear 3021 is exposed from the opening 3013, the first locking portion 3023 is also exposed from the opening 3013 and can cooperate with the second locking portion 1021 arranged on the first housing 101 to lock the gear 3021.

Further, in the second embodiment, the first housing 101 is provided with a fixing portion 1011, a mating portion which mates with the fixing portion 1011 is further formed on a surface of the gear 3021 where the first locking portion 3023 is formed, and when the gear 3021 is mounted on the first housing 101, the fixing portion 1011 mates with the mating portion to rotatably connect the gear 3021 to the first housing 101; an elastic member (not shown) is disposed between the sliding piece 3022 and the second housing 102, and two ends of the elastic member are respectively abutted against the sliding piece 3022 and the second housing 102.

It can be understood that, the fixing portion 1011 and the mating portion cooperate to fix the position of the gear 3021, and at the same time, provide precise positioning for the cooperation of the first locking portion 3023 and the second locking portion 1021, so as to avoid the occurrence of positional deviation and unstable cooperation therebetween.

The limiting groove 3011 is set on one surface of the rotary disc 301 close to the second housing 102, so that one surface of the sliding piece 3022 is abutted to the rotary disc 301, and the other surface is close to the second housing 102, and an elastic piece is set between the sliding piece 3022 and the second housing 102, and the elastic piece is abutted to the sliding piece 3022 and the second housing 102, respectively, it can be understood that, when the rotary disc 301 is rotated to make the abutting portion 3012 slide to the highest point a of the inclined slide rail 30222, the abutting sliding piece 3022 moves axially relative to the rotary disc 301 and moves away from the rotary disc 301, and compresses the elastic piece 1012, at this time, the first locking portion 3023 and the second locking portion 1021 separate, and the rotary disc 301 continues to rotate in the same direction, and the gear 3021 can be driven to rotate; when the rotary plate 301 rotates to make the abutting portion 3012 slide from the highest point a to the lowest point b on the inclined slide rail 30222, since the elastic member will apply a force to the slide 3022 to make the slide 3022 move away from the second housing 102, that is, the first locking portion 3023 moves close to the second housing 102, and the first locking portion 3023 moves close to the second locking portion 1021 to complete the locking of the gear 3021, at this time, the gear 3021 cannot rotate without rotating the rotary plate 301.

Specifically, the elastic member may be provided as a spring, and both ends of the spring are respectively abutted against the slide 3022 and the second housing 102.

Referring to fig. 10 to 14, a holding frame 3 according to a third embodiment of the present invention is different from the holding frame 1 according to the first embodiment in that: the clutch structure includes a gear 3021, a first lock portion 3023, an upper slider 3024, and a side slider 3025 abutting against the upper slider 3024, wherein the upper slider 3024 abuts against the gear 3021, and the abutting surface between the upper slider 3024 and the side slider 3025 is an inclined surface; a first lock portion 3023 provided on the side slider 3025, and a second lock portion 1021 provided on the engagement portion 202 of the clamp arm 20;

a sliding chute 30223 is formed in one side of the gear 3021 close to the turntable 301, at least two clamping parts 30221 are arranged in the sliding chute 30223, an abutting part 3012 is arranged on one side of the turntable 301 close to the gear 3021, and when the turntable 301 is rotated, the abutting part 3012 abuts against the clamping parts 30221 to drive the gear 3021 to rotate; a bevel rail 30222 is provided between adjacent locking portions 30221, and when the turntable 301 is rotated, the driving gear 3021 is axially moved relative to the turntable 301 to abut against the upper slider 3024, and the upper slider 3024 abuts against the side slider 3025 to lock or unlock the first locking portion 3023 and the second locking portion 1021.

It is understood that the difference between the clamp bracket 3 provided in this embodiment and the clamp bracket 1 provided in the first embodiment is mainly the difference in the clutch mechanism 302, which in turn results in the difference in the structural positions of the arrangement, specifically, in this embodiment, the first locking portion 3023 is opened on the side slider 3025, and the gear 3021, the upper slider 3024 and the side slider 3025 are separately arranged.

As will be appreciated, a slide groove 30223 is provided on one side of the gear 3021, and a ramp track 30222 is provided between adjacent detents 30221 in the slide groove 30223, such that when the dial 301 is rotated, the abutment 3012 moves on the ramp track 30222 to cause the dial 301 to move closer to or farther away from the gear 3021.

Further, the first housing 101 is provided with a fixing groove 1015, the upper slider 3024 and the side slider 3025 are both mounted in the fixing groove 1015, one side of the upper slider 3024 away from the side slider 3025 abuts against a groove wall of the fixing groove 1015, a first elastic member 1013 is disposed between the upper slider 3024 and a groove bottom of the fixing groove 1015, and two ends of the first elastic member 1013 abut against the upper slider 3024 and the fixing groove 1015, respectively; a second elastic member 1014 is provided between the side of the side slider 3025 remote from the upper slider 3024 and the groove wall of the fixing groove 1015, and both ends of the second elastic member 1014 are respectively abutted against the groove walls of the side slider 3025 and the fixing groove 1015.

It can be understood that, in the case where the upper slider 3024 and the side slider 3025 are mounted in the fixing groove 1015, and the fixing groove 1015 is used to fix the positions of the upper slider 3024 and the side slider 3025, wherein when the turntable 301 is rotated such that the abutting portion 3012 slides on the inclined slide rail 30222 to the highest point a of the inclined slide rail 30222, the gear 3021 moves axially relative to the turntable 301 and separates from the turntable 301, the gear 3021 further abuts against the upper slider 3024, the upper slider 3024 approaches the first housing 101 and compresses the first elastic member 1013, and the upper slider 3024 abuts against the side slider 3025, and since the ground interface between the upper slider 3024 and the side slider 3025 is inclined, the upper slider 3024 abuts against the side slider 3025 to move the side slider 3025 laterally and compresses the second spring to separate the first locking portion 3023 from the second locking portion 1021, and the engaging portion 202 is not caught by the side slider 3025, and then the turntable 301 is rotated in the same direction to move the clamping arm 20; when the turntable 301 is rotated in the other direction, the abutting portion 3012 slides from the highest point a to the lowest point b on the inclined slide rail 30222, and the upper slider 3024 abuts against the gear 3021 and the gear 3021 approaches the turntable 301 due to the force applied by the first elastic member 1013 to the upper slider 3024, and the second elastic member 1014 also applies a force to the side slider 3025 so that the first locking portion 3023 and the second locking portion 1021 on the side slider 3025 are completely engaged to lock the clamp arm 20.

Specifically, the first locking portion 3023 and the second locking portion 1021 may also be of a mutually engaged zigzag structure as described in the first embodiment.

Further, a convex column is further arranged on the turntable 301 near the abutting portion 3012, a first through hole matched with the convex column is arranged on the gear 3021, a second through hole matched with the convex column is arranged on the upper sliding block 3024, wherein the convex column simultaneously passes through the first through hole and the second through hole, and the upper sliding block 3024 is fixed in the fixing groove 1015, so that the gear 3021 and the turntable 301 cannot shift due to the matching of the convex column and the first through hole and the second through hole, and can also rotate.

In other embodiments, the protruding pillar may be further disposed in the fixing groove 1015 on the first housing 101, through holes matched with the protruding pillar are respectively formed on the gear 3021, the upper slider 3024 and the turntable 301, and the positions of the gear 3021 and the turntable 301 may also be fixed.

Referring to fig. 15-17, a holding frame 4 according to a fourth embodiment of the present invention is different from the holding frame 3 according to the first embodiment in that: the clutch mechanism 302 includes a gear 3021, a first lock portion 3023 and a slider 3026, the slider 3026 is in contact with the gear 3021, the first lock portion 3023 is provided in the slider 3026, and the second lock portion 1021 is provided in the meshing portion 202 of the clamp arm 20.

Furthermore, a sliding groove 30223 is formed on one side of the gear 3021 close to the turntable 301, at least two locking portions 30221 are arranged in the sliding groove 30223, an abutting portion 3012 is arranged on one side of the turntable 301 close to the gear 3021, and when the turntable 301 is rotated, the abutting portion 3012 abuts against the locking portions 30221 to drive the gear 3021 to rotate; a bevel slide rail 30222 is disposed between the adjacent locking portions 30221, and when the turntable 301 is rotated, the gear 3021 is driven to move axially relative to the turntable 301 and further abut against the slider 3026 to move axially, so as to lock or unlock the first locking portion 3023 and the second locking portion 1021.

In which the fitting of the dial 301 and the gear 3021 in this embodiment is identical to the fitting of the dial 301 and the gear 3021 in the third embodiment, except that the clutch mechanism 302 in this embodiment includes a slider 3026, in which the first lock portion 3023 is provided on a surface of the slider 3026 remote from the first housing 101, and the second lock portion 1021 is provided on a surface of the engagement portion 202 close to the first housing 101.

Further, the first housing 101 is provided with a fixing groove 1015 matching with the slider 3026, the slider 3026 is mounted in the fixing groove 1015, an elastic member 1012 is disposed between the slider 3026 and the groove bottom of the fixing groove 1015, and opposite ends of the elastic member 1012 abut against the slider 3026 and the groove bottom of the fixing groove 1015, respectively.

It can be understood that the fixing slot 1015 therein is used for fixing the slider 3026, when the turntable 301 is rotated to make the abutting portion 3012 slide on the inclined slide rail 30222 to the highest point a of the inclined slide rail 30222, the gear 3021 moves axially relative to the turntable 301 to separate from the turntable 301, the gear 3021 further abuts against the slider 3026, the slider 3026 approaches the first housing 101 and compresses the first elastic member 1013, so that the first locking portion 3023 separates from the second locking portion 1021, and then the rotatable gear 3021 is rotated to move the clamp arm 20; when the rotary plate 301 is rotated in the other direction, the abutting portion 3012 slides from the highest point a to the lowest point b on the inclined slide rail 30222, and the first elastic member 1013 applies a force to the slider 3026 so that the slider 3026 abuts the gear 3021 and the gear 3021 approaches the rotary plate 301, and the first locking portion 3023 and the second locking portion 1021 cooperate to lock the clamp arm 20.

Specifically, the first lock portion 3023 and the second lock portion 1021 in this embodiment may have the same inter-engaging saw-tooth configuration as in the first embodiment.

1. the embodiment of the utility model provides a clamping bracket, which comprises two clamping arms, a shell, two clamping arms and a rotating device, wherein the two clamping arms and the rotating device are movably arranged on the shell; the rotating device comprises a rotating disc and a clutch mechanism which are matched with each other, the clutch mechanism comprises a gear, the gear is connected with the rotating disc, and racks matched with the gear are respectively arranged on the two clamping arms, so that a user can drive the gear to rotate only by rotating the rotating disc when using the mobile phone, and the two clamping arms can be driven to be close to clamp the mobile phone or be far away from the mobile phone to take down the mobile phone through the matched transmission of the gear and the racks; wherein clutching mechanism still includes first locking part, is provided with second locking part on casing or the centre gripping arm, and first locking part and the cooperation of second locking part are in order realizing pinning gear or centre gripping arm, and wherein pin the gear can make very firm between the centre gripping arm because the cooperation relation of the rack between gear and the centre gripping arm, and directly pin the centre gripping arm and also reach the same effect for centre gripping arm centre gripping cell-phone is also more firm.

5. The utility model discloses a centre gripping support that second embodiment provided, wherein clutching mechanism still includes the gleitbretter, and gleitbretter and first locking part set up respectively in the relative two sides of gear, and second locking part wherein sets up on the first casing, understandably, when rotating the carousel and making butt portion slide to the peak of bevel slide rail, conflict gleitbretter for carousel axial motion and keep away from the carousel, and compress the elastic component, first locking part and second locking part separate this moment, continue to rotate the carousel in the same direction and can drive the gear to rotate; when the turntable rotates to enable the abutting part to slide from the highest point to the lowest point on the inclined plane slide rail, the elastic piece can apply an acting force to the slide sheet to enable the slide sheet to be far away from the second shell, namely, the first locking part is close to the second shell, the first locking part is close to the second locking part to complete matching and locking of the gear, and at the moment, the gear cannot rotate under the condition that the turntable is not rotated, namely, the current state of the clamping arm is kept, and the clamping arm is not easily influenced by the outside.

6. The utility model provides a clamping bracket, wherein upper sliding block and side sliding block are installed in the fixed slot, the fixed slot is used for fixing the position of upper sliding block and side sliding block, wherein rotate the carousel and make butt portion when the peak of inclined plane slide rail is slided to on the inclined plane slide rail, make the gear separate with the carousel for carousel axial motion, the gear is the upper sliding block of further contradicting again, the upper sliding block is close to first casing and compresses first elastic component, there is the upper sliding block butt side sliding block this moment, because the ground interface between upper sliding block and the side sliding block is the inclined plane, therefore the upper sliding block can butt side sliding block messenger side sliding block lateral motion, and compress the second spring, make first locking portion and second locking portion separate, meshing portion then do not blocked by the side sliding block this moment, continue again with the equidirectional rotation carousel can rotate the gear and make the centre gripping arm remove; when the turntable is rotated towards the other direction, the abutting part slides to the lowest point from the highest point on the inclined plane slide rail, the first elastic piece applies acting force to the upper slide block to enable the upper slide block to abut against the gear and enable the gear to be close to the turntable, and the second elastic piece also applies acting force to the side slide block to enable the first locking part and the second locking part on the side slide block to be matched to lock the clamping arm, so that the aim of locking the current state of the clamping arm by matching of the first locking part and the second locking part is fulfilled.

7. The utility model provides a clamping bracket, wherein the fixed slot is used for fixing the slider, when rotating the carousel, make the butt portion slide on the inclined plane slide rail to the peak of the inclined plane slide rail, make the gear separate with the carousel for carousel axial motion, the gear further conflicts the slider again, the slider is close to the first casing and compresses the first elastic component, make first locking portion and second locking portion separate, continue to rotate the carousel in the same direction again and can rotate the gear and make the clamping arm move; when the rotary table is rotated towards the other direction, the abutting part slides to the lowest point from the highest point on the inclined slide rail, the first elastic piece exerts acting force on the sliding block to enable the sliding block to abut against the gear and enable the gear to be close to the rotary table, and at the moment, the first locking part and the second locking part are matched to lock the clamping arm.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping bracket, its characterized in that: comprises a shell, a rotating device movably arranged on the shell, and at least two clamping arms movably arranged at two opposite ends of the shell; the rotating device comprises a rotating disc and a clutch mechanism which are matched with each other, the clutch mechanism comprises a gear, the gear is movably connected with the rotating disc, the clamping arms respectively comprise meshing parts matched with the gear, when the rotating disc is rotated, the rotating disc drives the gear to rotate, so that the meshing parts of the clamping arms arranged at two opposite ends of the shell move in the opposite direction or in the opposite direction, and the clamping arms arranged at two opposite ends of the shell are further close to or far away from each other; the clutch mechanism further comprises a first locking part, a second locking part matched with the first locking part is arranged on the shell or the clamping arm, and the first locking part is matched with the second locking part to lock the gear or the clamping arm.

2. The clamping bracket of claim 1, wherein: the shell comprises a first shell and a second shell, the first shell and the second shell enclose to form an accommodating cavity, and at least part of the turntable is exposed out of the accommodating cavity; the clamping arm further comprises a clamping portion connected with the meshing portion, the clamping portion is located outside the accommodating cavity, and the meshing portion is located in the accommodating cavity.

3. The clamping bracket of claim 2, wherein: the clutch mechanism further comprises a sliding sheet, and the gear and the first locking part are respectively arranged on two opposite surfaces of the sliding sheet;

a limiting groove matched with the sliding sheet is formed in the rotary table, an abutting part is arranged in the limiting groove, at least two clamping parts are further arranged on one surface, provided with the first locking part, of the sliding sheet, and when the rotary table is matched with the clutch mechanism, the sliding sheet is arranged in the limiting groove; when the turntable is rotated, the abutting part abuts against the clamping part and drives the gear to rotate;

4. The clamping bracket of claim 3, wherein:

the gear fixing device comprises a first shell, a gear and a fixing part, wherein the first shell is provided with the fixing part, the gear is provided with a matching part matched with the fixing part, the fixing part is provided with an elastic piece in a surrounding mode, when the gear is installed on the first shell, the fixing part is matched with the matching part to achieve that the gear is connected to the first shell in a rotating mode, and the elastic piece abuts against the gear.

5. The clamping bracket of claim 2, wherein:

the clutch mechanism further comprises a sliding sheet, and the sliding sheet and the first locking part are respectively arranged on two opposite surfaces of the gear;

6. The clamping bracket of claim 5, wherein:

the first shell is provided with a fixed part, one surface of the gear, which is provided with a first locking part, is also provided with a matching part matched with the fixed part, and when the gear is arranged on the first shell, the fixed part is matched with the matching part to realize that the gear is rotationally connected to the first shell;

7. The clamping bracket of claim 2, wherein: the clutch structure further comprises an upper sliding block and a side sliding block abutted against the upper sliding block, the upper sliding block is abutted against the gear, and an abutting surface between the upper sliding block and the side sliding block is an inclined surface;

the first locking part is arranged on the side sliding block, and the second locking part is arranged on the meshing part of the clamping arm; a sliding groove is formed in one side, close to the rotary table, of the gear, at least two clamping parts are arranged in the sliding groove, a butting part is arranged on one side, close to the gear, of the rotary table, and when the rotary table is rotated, the butting part is butted with the clamping parts to drive the gear to rotate; adjacent seted up the inclined plane slide rail between the clamping part, when rotating the carousel, drive the gear is axial motion for the carousel in order to butt the top shoe to by top shoe butt side slider in order to realize locking or unblock of first locking part and second locking part.

8. The clamping bracket of claim 7, wherein:

a fixed groove is formed in the first shell, the upper sliding block and the side sliding block are both installed in the fixed groove, one side, away from the side sliding block, of the upper sliding block is abutted to the groove wall of the fixed groove, a first elastic piece is arranged between the upper sliding block and the groove bottom of the fixed groove, and two ends of the first elastic piece are respectively abutted to the upper sliding block and the fixed groove;

9. The clamping bracket of claim 2, wherein: the clutch mechanism further comprises a sliding block, the sliding block is abutted against the gear, the first locking part is arranged on the sliding block, the second locking part is arranged on the meshing part of the clamping arm, a sliding groove is formed in one side, close to the turntable, of the gear, at least two clamping parts are arranged in the sliding groove, an abutting part is arranged on one side, close to the gear, of the turntable, and when the turntable is rotated, the abutting part is abutted against the clamping parts to drive the gear to rotate; an inclined slide rail is arranged between the adjacent clamping parts, and when the rotary disc is rotated, the gear is driven to move axially relative to the rotary disc so as to abut against the sliding block to move axially to lock or unlock the first locking part and the second locking part.

10. The clamping bracket of claim 9, wherein: be provided with on the first casing with the fixed slot of slider matching, the slider install in the fixed slot, just the slider with be provided with an elastic component between the tank bottom of fixed slot, the relative both ends of elastic component respectively with the tank bottom butt of slider and fixed slot.