CN212691271U - Clamping support capable of being automatically locked and mobile terminal support - Google Patents

Abstract

The utility model provides a clamping support and mobile terminal support that can lock firmly automatically, including bearing seat, first arm lock, second arm lock and supporting seat, be equipped with drive gear and extension spring in the supporting seat, drive gear meshes with the supporting seat rack portion that sets up in the supporting seat in the front-back direction, and one end of extension spring is connected to bearing seat, and the other end of extension spring eccentric connection is to drive gear; the first clamping arm is provided with a first rack part along the clamping direction, and the first rack part is meshed with the driving gear; when external pressure or pulling force acts on the bearing seat, the bearing seat slides along the front-back direction relative to the supporting seat, and the driving gear rotates to drive the first rack portion to slide in the clamping direction so as to realize the relative clamping or loosening of the first clamping arm and the second clamping arm. The utility model discloses a but tension of extension spring enables extension spring and drive gear formation auto-lock state in the centre gripping support of automatic lock solid, provides firm reliable centre gripping more, can obtain better user experience.

Description

Clamping support capable of being automatically locked and mobile terminal support

Technical Field

The utility model relates to a mobile terminal accessory technical field, in particular to clamping support and mobile terminal support that can automatic lock solid.

Background

With the development of mobile phone intelligence, mobile phones become an indispensable part of people's lives, people often need to use mobile phones to navigate in the driving process, and automobiles can generate large vibration in the driving process, so that mobile phones or other electronic products need to be installed and fixed through mobile terminal supports.

The existing support generally comprises a left clamping arm and a right clamping arm, the left clamping arm and the right clamping arm are generally in a clamping state under a normal state, when a user clamps and fixes electronic equipment such as a mobile phone on the support, a user needs to operate a switch button on the support by one hand or wrestling the left clamping arm or the right clamping arm so as to separate the left clamping arm from the right clamping arm, and then the user puts the mobile phone between the left clamping arm and the right clamping arm by the other hand so as to clamp and fix the mobile phone on the support, namely, the operation of placing the mobile phone or taking the mobile phone is not convenient enough.

And get the comparatively convenient support of operation on the market, often have the not stable enough problem of auto-lock under the clamping state again.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a clamping bracket and a mobile terminal bracket that are stable and reliable in a clamping state and can be automatically locked.

The utility model provides a clamping support that can lock firmly automatically for centre gripping mobile terminal, including bearing seat, first arm lock, second arm lock and supporting seat, the second arm lock sets up in one side of bearing seat, first arm lock can be relative the second arm lock sets up in the opposite side of bearing seat along the centre gripping direction with sliding, the supporting seat sets up in the rear of bearing seat, be equipped with drive gear and extension spring in the supporting seat, drive gear with the supporting seat rack portion that sets up in the front and back direction in the supporting seat meshes, one end of extension spring is connected to bearing seat, the other end eccentric of extension spring is connected to drive gear; the first clamping arm is provided with a first rack part along the clamping direction, and the first rack part is meshed with the driving gear; when external pressure or pulling force act on when bearing the seat, bear the seat for the supporting seat slides along the fore-and-aft direction, drive gear rotates and drives first rack portion slides on the clamping direction, in order to realize first arm lock the relative centre gripping of second arm lock or loosen.

In an embodiment, the first clamp arm and the second clamp arm are connected by a clamp gear, and the clamp gear is mounted on the carrier seat and is engaged with the second rack portion and the third rack portion provided along the clamping direction on the first clamp arm and the second clamp arm, respectively.

In one embodiment, the carrier seat comprises a front shell and a rear shell fastened to each other, and the first clamping arm and the second clamping arm are installed between the front shell and the rear shell.

In one embodiment, the rear shell is provided with a through groove, and the first rack portion penetrates out of the through groove to be meshed with the driving gear.

In an embodiment, a shaft column, a first positioning block and a second positioning block extend forwards from the rear shell along a direction perpendicular to the clamping direction, the clamping gear is mounted on the shaft column, the first positioning block and the second positioning block are respectively located at two sides of the shaft column, and the first positioning block and the second positioning block respectively limit the first clamping arm and the second clamping arm to move back to the limit positions in the rear shell.

In an embodiment, drive gear includes the gear shaft and winds the tooth portion that the gear shaft set up, the gear shaft is installed bear on the seat, tooth portion simultaneously with first rack portion with supporting seat rack portion meshes, drive gear middle part has been seted up and has been dodged the groove and in order to supply the one end of extension spring get into and through the first fixed axle of extension spring with drive gear is connected.

In an embodiment, the first clamping arm comprises a first clamping piece, a first compression spring and a first sliding piece, the first clamping piece is provided with a first spring clamping piece side baffle by inner side in the clamping direction, the first sliding piece is provided with a first spring sliding piece side baffle by outer side in the clamping direction, two ends of the first compression spring respectively abut against the first spring clamping piece side baffle and between the first spring sliding piece side baffles, and the first rack portion is arranged on the first sliding piece.

In an embodiment, the second clamping arm includes a second clamping member, a second compression spring and a second sliding member, a second spring clamping member side baffle is disposed on one side of the second clamping member close to the inner side in the clamping direction, a second spring sliding member side baffle is disposed on one side of the second sliding member close to the outer side in the clamping direction, and two ends of the second compression spring respectively abut against the second spring clamping member side baffle and between the second spring sliding member side baffles.

In an embodiment, the front ends of the first clamping member and the second clamping member are respectively provided with a first front shell sliding groove and a second front shell sliding groove along the clamping direction, and the second front shell sliding groove and the first front shell sliding groove are respectively in sliding fit with a first front shell sliding block and a second front shell sliding block which are arranged on the rear end surface of the front shell; or

A first rear shell sliding block is arranged at the rear end of the first clamping piece, a second rear shell sliding block is arranged at the rear end of the first sliding piece, and the first rear shell sliding block and the second rear shell sliding block are respectively in sliding fit with a first rear shell sliding groove and a second rear shell sliding groove which are formed in the rear shell along the clamping direction; or

The rear end of the second clamping piece is provided with a third rear shell sliding block, the rear end of the second sliding piece is provided with a fourth rear shell sliding block, and the fourth rear shell sliding block and the third rear shell sliding block are respectively in sliding fit with a first rear shell sliding groove and a second rear shell sliding groove which are formed in the rear shell along the clamping direction.

The utility model provides a mobile terminal bracket, which is used for clamping a mobile terminal and comprises a bearing seat, a first clamping arm, a second clamping arm and a supporting seat, wherein the first clamping arm and the second clamping arm are respectively arranged at two opposite sides of the bearing seat in a sliding way along a clamping direction, the supporting seat is arranged at the rear part of the bearing seat, a driving gear, a resetting piece and a self-locking structure are arranged in the supporting seat, the driving gear is meshed with a rack part of the supporting seat arranged in the supporting seat in the front and rear directions, the resetting piece is used for resetting the first clamping arm and the second clamping arm, and the self-locking structure is used for keeping the first clamping arm and the second clamping arm in a clamping state; the first clamping arm is provided with a first rack part along the clamping direction, the first rack part is meshed with the driving gear, the first clamping arm is connected with the second clamping arm through a clamping gear, and the clamping gear is installed on the bearing seat and is respectively meshed with a second rack part and a third rack part which are arranged on the first clamping arm and the second clamping arm along the clamping direction; when external pressure or pulling force act on bear the seat, bear the seat for the supporting seat slides along the fore-and-aft direction, drive gear rotates and drives first rack portion slides on the clamping direction, in order to realize first arm lock second arm lock is relative centre gripping or is unclamped in step.

To sum up, the utility model discloses a but centre gripping support and mobile terminal support of automatic lock solid have following beneficial effect at least: when the bracket is in an opening state, one end of the tension spring is connected with the rear bearing seat, the other end of the tension spring is eccentrically connected with the driving gear, and the tension of the tension spring keeps the bracket in the opening state under a clamping state; when one end of the tension spring connected with the driving gear rotates to the other side of the driving gear, the rear shell moves backwards to the limit position relative to the connecting seat, the tension of the tension spring enables the tension spring and the driving gear to form a self-locking state, and the driving gear stops rotating and is kept in a clamping state; therefore, the support can be kept stable in an opening state and a clamping state, more firm and reliable clamping is provided for the mobile terminal, and better user experience can be obtained. When the mobile terminal of centre gripping broad, first holder, second holder support and bulldoze mobile terminal in mobile terminal's both sides, and first slider, second slider move to bearing the weight of the seat, and the restoring force that first compression spring and second compression spring compressed at this moment strengthens first centre gripping arm, second centre gripping arm respectively to mobile terminal's centre gripping dynamics to applicable in the mobile terminal of wider width scope and provide sufficient centre gripping dynamics, guarantee the stability under the clamping state. The rear shell is internally provided with a first positioning block and a second positioning block which are used for limiting the maximum stroke of the first clamping arm and the second clamping arm in the moving back bearing seat, and simultaneously the first positioning block and the second positioning block are respectively matched with the upper edge and the lower edge of the rear shell to form sliding spaces of the first clamping arm and the second clamping arm of the clamping arms, so that the first clamping arm and the second clamping arm can stably move.

Drawings

Fig. 1 is a schematic perspective view of a clamping bracket capable of automatically locking in an open state according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the clamping bracket capable of automatically locking in fig. 1 in a clamping state.

Fig. 3 is an exploded perspective view of the clamping bracket of fig. 1 capable of being automatically locked.

Fig. 4 is an exploded perspective view of the clamping bracket of fig. 1 capable of being automatically locked.

Fig. 5 is a perspective view of the front housing of the auto-lockable clamping bracket of fig. 4.

Fig. 6 is a perspective view of the rear housing of the clamping bracket of fig. 4 capable of being automatically locked.

Fig. 7 is an exploded perspective view of the first and second clamp arms of the clamping bracket of fig. 4 capable of being automatically locked.

Fig. 8 is an exploded perspective view of the clamping bracket of fig. 4, which can be automatically locked and released, showing another angle of the first clamping arm and the second clamping arm.

Fig. 9 is an exploded perspective view of the support base of the clamping bracket of fig. 4 capable of being automatically locked.

Fig. 10 is an enlarged perspective view of the drive gear of the support base of fig. 9.

Fig. 11 is a perspective view illustrating the mobile terminal holder of fig. 1 in an opened state according to the preferred embodiment of the present invention.

Fig. 12 is a perspective view of fig. 11 taken along the line a-a.

Fig. 13 is a cross-sectional view taken along a-a in fig. 11.

Fig. 14 is a schematic cross-sectional view of fig. 13 in a clamped state.

The elements in the figures are numbered as follows:

a front case 10 (wherein: a first front case slider 11, a second front case slider 12, a mounting hole 13);

a rear shell 20 (wherein, the rear shell 21, the clamping gear 22, the shaft column 211, the first rear shell sliding groove 212, the second rear shell sliding groove 213, the first positioning block 215, the second positioning block 214, the through groove 216, the first shaft hole 217 and the limiting groove 218);

the first arm lock 40 (among them: a first clamp 41, a first compression spring 42, a first slider 43; a first clamp arm 411, a first front case slide groove 412, a first rear case slider 413, a first spring clamp receiving groove 414; a first spring clamp side shutter 4141; a first rack portion 434, a second rack portion 431, a first spring slider receiving groove 432, a second rear case slider 433; a first spring slider side shutter 4321;

a second clamp arm 30 (wherein: a second clamp 31, a second compression spring 32, a second slider 33; a second clamp arm 311, a second front case slide 312, a third rear case slide 313, a second spring clamp receiving groove 314, a second spring clamp side blocking plate 3141; a third rack portion 331, a second spring slide receiving groove 332, a fourth rear case slide 333, a second spring slide side blocking plate 3321);

the support seat 50 (wherein, the connecting seat 51, the driving gear 52, the tension spring 53, the tension spring first fixing shaft 54 and the tension spring second fixing shaft 55, the movable cavity 511, the connecting seat rack part 512, the limiting block 513, the connecting part 514, the gear shaft guide groove 515, the driving gear tooth part 521, the gear shaft 522, the avoiding groove 523 and the second shaft hole 524).

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention does not limit the number of the element to one, and may include a plurality of the elements.

The utility model provides a clamping support that can automatic lock solid fixes in the car with devices such as air outlet clip, sucking disc base for centre gripping mobile terminal. As shown in fig. 1 and fig. 2, the clamping bracket of the preferred embodiment of the present invention includes a front shell 10, a rear shell 20, a first clamping arm 40, a second clamping arm 30 and a supporting seat 50, wherein the front shell 10 and the rear shell 20 are fixedly connected to install the first clamping arm 40 and the second clamping arm 30 between the front shell 10 and the rear shell 20, the first clamping arm 40 and the second clamping arm 30 are respectively slidably disposed at two opposite sides of a bearing seat formed by the front shell 10 and the rear shell 20, a mobile terminal is placed in front of the front shell 10 from the front (bearing surface), and the first clamping arm 40 and the second clamping arm 30 clamp the mobile terminal therebetween from two sides. The supporting seat 50 is disposed behind the rear case 20, and is used for being connected with an air outlet clip, a sucker base and the like to fix the clamping mobile terminal.

Referring to fig. 3, 4 and 5, the front housing 10 is a flat plate, and the back surface of the front housing is provided with a first front housing sliding block 11 and a second front housing sliding block 12 respectively, and the first front housing sliding block 11 and the second front housing sliding block 12 are arranged along the clamping direction and are parallel to each other. The front case 10 is formed with at least two mounting holes 13, and the front case 10 is mounted to the rear case 20 by fastening members passing through the mounting holes 13.

Referring to fig. 3, 4 and 6, the rear housing 20 includes a rear housing 21 and a clamping gear 22 disposed in the rear housing 21, and the rear housing 21 and the front housing 10 are integrally connected.

A shaft column 211 extends forwards in the rear shell 21 along a direction perpendicular to the clamping direction, and the clamping gear 22 is coaxially sleeved on the shaft column 211. The front surface of the rear housing 21 is provided with a first rear housing sliding groove 212 and a second rear housing sliding groove 213, and the first rear housing sliding groove 212 and the second rear housing sliding groove 213 are respectively arranged up and down along the clamping direction and are parallel to each other. A first positioning block 215 and a second positioning block 214 extend forward from two sides of the front surface of the rear housing 21, respectively, and the first positioning block 215 and the second positioning block 214 are located at two sides of the shaft column 211, respectively. The first positioning block 215 and the second positioning block 214 are used for limiting the maximum stroke of the first clamping arm 40 and the second clamping arm 30 moving back into the carrier seat, and simultaneously, the first positioning block and the second positioning block are respectively matched with the upper edge and the lower edge of the rear housing 21 to form a sliding space of the first clamping arm 40 and the second clamping arm 30 of the clamping arms, so that the first clamping arm 40 and the second clamping arm 30 can move smoothly. The first positioning block 215 and the second positioning block 214 are respectively provided with a threaded hole corresponding to the mounting hole 13 on the front housing 10, so that a fastener can pass through the mounting hole 13 and then be screwed into the corresponding threaded hole, thereby fixedly connecting the front housing 10 and the rear housing 20 into a whole. A through groove 216 is formed below the first positioning block 215 and the second positioning block 214 for allowing a part of the first clamping arm 40 to extend backwards. A first shaft hole 217 is opened in the rear of the rear case 21 in a direction perpendicular to the clamping direction (vertical direction). The rear end of the rear housing 21 is formed with a limiting groove 218 in a direction perpendicular to the front housing 10, so as to limit the moving direction of the supporting seat 50 relative to the rear housing 21 and prevent the connecting seat 51 from being separated from the rear housing 21 of the rear housing 20.

Referring to fig. 3, 4, 7 and 8, the first clamping arm 40 and the second clamping arm 30 are respectively disposed at two sides.

The first clip arm 40 includes three parts, namely a first clip 41, a first compression spring 42 and a first slider 43, and the first slider 43 is engaged with the first clip 41 to receive the first compression spring 42 therebetween.

Specifically, the first clamping member 41 includes a first clamping arm 411 bent forward from the main body of the first clamping member 41 from the outside, and the first clamping arm 411 may clamp the corresponding side of the mobile terminal from one side.

The front end of the first clamping member 41 is provided with a first front shell sliding slot 412, and the first front shell sliding slot 412 is matched with the second front shell sliding block 12 on the front shell 10. That is, the second front case slider 12 at the rear end of the front case 10 is fitted into the first front case sliding groove 412 at the front end of the first clamping member 41, so that the first clamping member 41 can slide relative to the front case 10 in the direction of the second front case slider 12.

The rear end of the first clamping member 41 is provided with a first rear shell sliding block 413 facing backwards, and the first rear shell sliding block 413 can be matched with the first rear shell sliding groove 212 on the rear shell 20. That is, the first rear case slider 413 of the first clamping member 41 is embedded in the first rear case sliding groove 212 of the rear case, so that the first clamping member 41 can slide relative to the rear case 20 in the direction of the first rear case sliding groove 212.

A first spring holder receiving groove 414 is formed at the rear end of the first holder 41, into which the first compression spring 42 is inserted, and a first spring holder side shutter 4141 is provided inside the first spring holder receiving groove 414. The corresponding end of the first compression spring 42 abuts on the first spring holder-side shutter 4141.

A second rack portion 431 is arranged on the upper edge of the first sliding member 43 along the clamping direction, and the second rack portion 431 is meshed with the clamping gear 22, so that the clamping gear 22 rotates to drive the second rack portion 431 (namely, the first sliding member 43) to move in the clamping direction, and the first clamping arm 40 can move in the clamping direction.

A first spring-slider receiving groove 432 is formed at the front end of the first slider 43, into which the first compression spring 42 is inserted, and a first spring-slider side barrier 4321 is provided inside the first spring-slider receiving groove 432. The corresponding end of first compression spring 42 abuts against first spring slide side stop 4321. The first compression spring 42 is thereby interposed between the first holder 41 and the first slider 43, and both ends thereof abut on the first spring holder-side shutter 4141 and the first spring slider-side shutter 4321, respectively.

The rear end of the first sliding member 43 is provided with a second rear shell sliding block 433, the second rear shell sliding block 433 is matched with a second rear shell sliding groove 213 in the rear shell 21 of the rear shell 20, and the second rear shell sliding block 433 is embedded in the second rear shell sliding groove 213 and can move along the second rear shell sliding groove 213 in the clamping direction.

A first rack portion 434 extends rearward from the rear surface of the first slider 43, and the first rack portion 434 protrudes rearward from the through groove 216 of the rear housing 21.

The second clip arm 30 includes three parts, namely a second clip 31, a second compression spring 32 and a second slider 33, wherein the second slider 33 is engaged with the second clip 31 to receive the second compression spring 32 therebetween.

Specifically, the second clamping member 31 includes a second clamping arm 311 bent forward from the main body of the second clamping member 31 from the outside, and the second clamping arm 311 can clamp the corresponding side of the mobile terminal from one side.

The front end of the second clamping member 31 is provided with a second front shell sliding slot 312, and the second front shell sliding slot 312 is matched with the first front shell sliding block 11 on the front shell 10. That is, the first front case slider 11 at the rear end of the front case 10 is fitted into the second front case sliding groove 312 at the front end of the second clamping member 31, so that the second clamping member 31 can slide relative to the front case 10 in the direction of the first front case slider 11.

The rear end of the second clamping member 31 is provided with a third rear shell sliding block 313, and the third rear shell sliding block 313 can be matched with the second rear shell sliding groove 213 on the rear shell 20. That is, the third rear case slider 313 of the second clamping member 31 is embedded in the second rear case sliding groove 213 of the rear case, so that the second clamping member 31 can slide relative to the rear case 20 in the direction of the second rear case sliding groove 213.

A second spring holder receiving groove 314 is formed at the rear end of the second holder 31 for receiving the second compression spring 32 therein, and a second spring holder side stopper 3141 is provided inside the second spring holder receiving groove 314. The corresponding end of the second compression spring 32 abuts on the second spring holder-side stopper 3141.

A third rack portion 331 is provided on the lower edge of the second slider 33 along the clamping direction, and the third rack portion 331 is engaged with the clamping gear 22, so that the clamping gear 22 rotates to drive the third rack portion 331 (i.e., the second slider 33) to move in the clamping direction, so that the second clamping arm 30 can move in the clamping direction.

A second spring slider receiving groove 332 is formed at the front end of the second slider 33 for receiving the second compression spring 32 therein, and a second spring slider side blocking plate 3321 is provided outside the second spring slider receiving groove 332. The corresponding end of the second compression spring 32 abuts on the second spring slider side shutter 3321. The second compression spring 32 is thereby interposed between the second clamp 31 and the second slider 33, and both ends thereof abut on the second spring clamp side stopper 3141 and the second spring slider side stopper 3321, respectively.

The rear end of the second sliding member 33 is provided with a fourth rear shell sliding block 333, the fourth rear shell sliding block 333 is matched with the first rear shell sliding groove 212 in the rear shell 21 of the rear shell 20, and the second rear shell sliding block 33 is embedded in the first rear shell sliding groove 212 and can move along the first rear shell sliding groove 212 in the clamping direction.

The second clamping arm 30, the second front shell sliding slot 312 and the first front shell sliding slot 412 at the front end of the first clamping arm 40 are respectively matched with the first front shell sliding block 11 and the second front shell sliding block 12 on the rear surface of the front shell 10, the third rear shell sliding block 313 and the first rear shell sliding block 413 at the rear end of the second clamping arm 30 and the first clamping arm 40 are matched with the first rear shell sliding slot 212 on the front surface of the rear shell 21 of the rear shell 20, and the fourth rear shell sliding block 333 and the second rear shell sliding block 433 are matched with the second rear shell sliding slot 213 on the front surface of the rear shell 21, so that the second clamping arm 30 and the first clamping arm 40 can respectively slide along the clamping direction on two sides relative to the shell formed by the front shell 10 and the rear shell 20. When the clamp gear 22 in the rear housing 20 is driven to rotate, the second rack portion 431 and the third rack portion 331 are driven to move, so that the first clamping member 41 and the second clamping member 31 move in the clamping direction, and thus the first clamping arm 411 and the second clamping arm 311 can be relatively opened or closed.

Referring to fig. 3, 4 and 9, the supporting seat 50 includes a connecting seat 51, a driving gear 52 installed in the connecting seat 51, a tension spring 53, and a first fixing shaft 54 and a second fixing shaft 55 for fixing two ends of the tension spring 53.

A movable chamber 511 into which the driving gear 52 is inserted is formed at the front end of the connecting holder 51, and a connecting holder rack portion 512 is provided on one side of the movable chamber 511 in the front-rear direction. The movable cavity 511 of the connecting seat 51 is provided for the first driving gear 52 to move inside, and the rack part 512 of the connecting seat arranged on the inner wall of the movable cavity 511 is meshed with the driving gear 52. The connecting base 51 is provided with a gear shaft guide groove 515 along the front-rear direction, the shaft of the driving gear 52 is installed in the gear shaft guide groove 515 of the connecting base 51, and when the driving gear 52 rotates, the driving gear moves back and forth relative to the connecting base rack part 512, so that the driving gear 52 drives the rear housing 21 to move back and forth relative to the connecting base 51. A stopper 513 is disposed at a front end of an outer wall of the connecting block 51, and the stopper 513 extends outward from a front end of a side wall of the connecting block 51 to be engaged with a stopper groove 218 (see fig. 13) formed in a rear end of the rear housing 21 of the rear housing 20, so as to restrict a direction of the relative movement and prevent the connecting block 51 from being separated from the rear housing 21 of the rear housing 20. The rear end of the connecting seat 51 is provided with a connecting portion 514 for connecting with an air outlet clip, a suction cup base and the like to fix the clamping bracket capable of automatically locking, wherein in the embodiment shown, the connecting portion 514 is an external thread connector.

Referring to fig. 10 in combination, the driving gear 52 includes driving gear teeth 521 provided around a vertical gear shaft 522, and the driving gear teeth 521 are engaged with both the first rack portion 434 and the coupler socket rack portion 512. In order to facilitate the installation and operation of the tension spring 53, an avoiding groove 523 is formed in the middle of the driving gear 52 for the tension spring 53 to move therein. One end of the tension spring 53 is connected with the gear by inserting the tension spring first fixing shaft 54 into the second shaft hole 524 on the driving gear 52. The other end of the tension spring 53 is mounted on a second fixed shaft 55 of the tension spring in a corresponding first shaft hole 217 of the rear housing 21, and the second fixed shaft 55 is fixedly connected with the rear housing 21. The second shaft hole 524 is formed eccentrically in the drive gear 52, i.e., the axis of the second shaft hole 524 is parallel to but not coincident with the gear shaft 522.

The utility model discloses a clamping support that can lock solid automatically passes through connecting portion 514 and devices such as air outlet clip, sucking disc base of 50 rear ends of supporting seats to be fixed in the car.

Referring to fig. 11 to 14, the mobile terminal bracket according to the preferred embodiment of the present invention is used for clamping a mobile terminal, and includes a supporting seat (composed of a front shell 10 and a rear shell 20), a first clamping arm 40, a second clamping arm 30 and a supporting seat 50, wherein the first clamping arm 40 and the second clamping arm 30 are slidably disposed at two opposite sides of the supporting seat along a clamping direction, and the supporting seat 50 is disposed at the rear of the supporting seat.

Be equipped with drive gear 52, reset piece and auto-lock structure in the supporting seat 50, drive gear 52 meshes with the connecting seat rack portion 512 that sets up in the supporting seat 50 on the fore-and-aft direction, and the piece that resets is used for first arm lock 40 with second arm lock 30 resets, and the auto-lock structure is used for with first arm lock 40 with second arm lock 30 keeps at the clamping state.

The first clamping arm 40 is provided with a first rack part 434 along the clamping direction, the first rack part 434 is meshed with the driving gear 52, the first clamping arm 40 is connected with the second clamping arm 30 through a clamping gear 22, the clamping gear 22 is installed on the rear shell 20 of the bearing seat and is respectively meshed with a second rack part 431 and a third rack part 331 which are arranged along the clamping direction on the first clamping arm 40 and the second clamping arm 30;

when external pressure or pulling force acts on the front end surface of the front shell 10 of the carrier, the carrier slides in the front-back direction relative to the supporting seat 50, and the driving gear 52 rotates to drive the first rack portion 434 to slide in the clamping direction, so as to realize synchronous clamping or releasing of the first clamping arm 40 and the second clamping arm 30 relative to each other.

Referring to fig. 11 to 14, the operation principle of the clamping bracket and the mobile terminal bracket capable of being automatically locked will be described as follows:

when the supportable stand is in an open state (the state shown in fig. 11, 12 and 13), the distance between the second clamping arm 311 and the first clamping arm 411 is the largest, the driving gear 52 is simultaneously engaged with the first rack portion 434 of the first clamping arm 40 and the connecting seat rack portion 512 of the supporting seat 50, one end of the tension spring 53 is connected with the rear housing 21, the other end is eccentrically connected with the driving gear 52, and the supporter is kept in the open state under the tension of the tension spring 53.

When the mobile terminal needs to be clamped, the back of the mobile terminal abuts against a bearing surface at the front end of a bearing seat, and applies force to push and press the front shell 10 and the rear shell 20 towards the direction of the supporting seat 50, at this time, the front shell 10 and the rear shell 20 move towards the direction of the supporting seat 50 together, the driving gear 52 in the supporting seat 50 rotates, the driving gear 52 drives the first clamping arm 40 to move towards the bearing seat along the clamping direction through the first rack part 434 meshed with the driving gear 52, and the first clamping arm 40 drives the second clamping arm 30 to move towards the bearing seat through the clamping gear 22 until the first clamping arm abuts against two side walls of the mobile terminal; when the other end of the tension spring 53 (the end connected to the first tension spring fixing shaft 54) rotates to the other side of the driving gear 52, the rear housing 21 moves backward to a limit position relative to the connecting seat 51 (for example, the corresponding surface of the rear housing 21 abuts against the front end surface of the connecting seat 51, or the gear shaft 522 moves relatively to a limit position of the gear shaft guide slot 515), because the first tension spring fixing shaft 54 is eccentrically arranged relative to the driving gear, the axis of the second tension spring fixing shaft 55 (i.e., the first shaft hole 217) is parallel to the axis of the driving gear 52, and at this time, the first tension spring fixing shaft 54 is located on one side of the connection line between the axis of the second tension spring fixing shaft 55 and the axis of the driving gear 52, and the tension spring 53 and the driving gear 52 form a.

When a mobile terminal with a wide clamping range is clamped and a self-locking condition is not achieved, the second clamping piece 31 and the first clamping piece 41 abut against two sides of the mobile terminal to further push the mobile terminal, the second clamping piece 31 and the first clamping piece 41 are static relative to the mobile terminal, but the second sliding piece 33 and the first sliding piece 43 still move in the bearing seat, at the moment, the second compression spring 32 and the first compression spring 42 are compressed, and the elastic force of the two springs further strengthens the clamping force of the second clamping piece 31, the second clamping arm 311 of the first clamping piece 41 and the first clamping arm 411 on the mobile terminal.

To sum up, the utility model provides a clamping bracket and a mobile terminal bracket capable of automatic locking, when in an opening state, one end of a tension spring is connected with a rear bearing seat, the other end is eccentrically connected with a driving gear, and the tension force of the tension spring keeps the bracket in the opening state under a clamping state; when one end of the tension spring connected with the driving gear rotates to the other side of the driving gear, the rear shell moves backwards to the limit position relative to the connecting seat, the tension of the tension spring enables the tension spring and the driving gear to form a self-locking state, and the driving gear stops rotating and is kept in a clamping state; therefore, the support can be kept stable in an opening state and a clamping state, more firm and reliable clamping is provided for the mobile terminal, and better user experience can be obtained. When the mobile terminal of centre gripping broad, first holder, second holder can support and bulldoze mobile terminal by the both sides at mobile terminal, and first slider, second slider move to bearing the weight of the seat, and the restoring force that first compression spring and second compression spring compressed at this moment strengthens first centre gripping arm, second centre gripping arm respectively to mobile terminal's centre gripping dynamics to applicable in the mobile terminal of wider width scope and provide sufficient centre gripping dynamics, guarantee the stability under the clamping state. The rear shell is internally provided with a first positioning block and a second positioning block which are used for limiting the maximum stroke of the first clamping arm and the second clamping arm in the moving back bearing seat, and simultaneously the first positioning block and the second positioning block are respectively matched with the upper edge and the lower edge of the rear shell to form sliding spaces of the first clamping arm and the second clamping arm of the clamping arms, so that the first clamping arm and the second clamping arm can stably move. The utility model discloses a but clamping support and mobile terminal support of automatic lock solid's compact structure, whole small.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The utility model provides a clamping support that can lock solid automatically for centre gripping mobile terminal, including bearing seat, first arm lock, second arm lock and supporting seat, the second arm lock sets up bear one side of seat, first arm lock can be relative the second arm lock sets up along centre gripping direction with sliding bear the opposite side of seat, the supporting seat sets up bear the rear of seat, its characterized in that:

a driving gear and a tension spring are arranged in the supporting seat, the driving gear is meshed with a supporting seat rack part arranged in the supporting seat in the front-rear direction, one end of the tension spring is connected to the bearing seat, and the other end of the tension spring is eccentrically connected to the driving gear;

the first clamping arm is provided with a first rack part along the clamping direction, and the first rack part is meshed with the driving gear;

when external pressure or pulling force act on when bearing the seat, bear the seat for the supporting seat slides along the fore-and-aft direction, drive gear rotates and drives first rack portion slides on the clamping direction, in order to realize first arm lock the relative centre gripping of second arm lock or loosen.

2. The automatically lockable clamping bracket according to claim 1, characterized in that: the first clamping arm is connected with the second clamping arm through a clamping gear, and the clamping gear is installed on the bearing seat and is respectively meshed with the second rack portion and the third rack portion which are arranged on the first clamping arm and the second clamping arm along the clamping direction.

3. The automatically lockable clamping bracket according to claim 2, characterized in that: the bearing seat comprises a front shell and a rear shell which are fastened into a whole, and the first clamping arm and the second clamping arm are arranged between the front shell and the rear shell.

4. The automatically lockable clamping bracket according to claim 3, characterized in that: a through groove is formed in the rear shell, and the first rack portion penetrates out of the through groove and is meshed with the driving gear.

5. The automatically lockable clamping bracket according to claim 4, further comprising: a shaft column, a first positioning block and a second positioning block extend forwards in the rear shell along a direction perpendicular to the clamping direction, the clamping gear is mounted on the shaft column, the first positioning block and the second positioning block are respectively located on two sides of the shaft column, and the first positioning block and the second positioning block respectively limit the first clamping arm and the second clamping arm to move back to the limit position in the rear shell.

6. The automatically lockable clamping bracket according to claim 1, characterized in that: drive gear includes the gear shaft and winds the tooth portion that the gear shaft set up, the gear shaft is installed bear on the seat, tooth portion simultaneously with first rack portion with supporting seat rack portion meshes, drive gear has been seted up at the middle part and has been dodged the groove and in order to supply the one end of extension spring get into and through the first fixed axle of extension spring with drive gear connects.

7. The automatically lockable clamping bracket according to any of claims 1 to 6, characterized in that: first arm lock includes first holder, first compression spring and first slider, first holder is in lean on interior one side to be equipped with first spring holder side shield on the centre gripping direction, first slider is in lean on outer one side to be equipped with first spring slider side shield on the centre gripping direction, first compression spring's both ends are supported respectively first spring holder side shield between the first spring slider side shield, first rack portion sets up on the first slider.

8. The automatically lockable clamping bracket according to claim 7, further comprising: the second clamping arm comprises a second clamping piece, a second compression spring and a second sliding piece, the second clamping piece is provided with a second spring clamping piece side baffle by leaning on one side in the clamping direction, the second sliding piece is provided with a second spring sliding piece side baffle by leaning on one side outside the clamping direction, and two ends of the second compression spring respectively support against the second spring clamping piece side baffle and between the second spring sliding piece side baffles.

9. The automatically lockable clamping bracket according to claim 8, further comprising: the front ends of the first clamping piece and the second clamping piece are respectively provided with a first front shell sliding groove and a second front shell sliding groove along the clamping direction, and the second front shell sliding groove and the first front shell sliding groove are respectively in sliding fit with a first front shell sliding block and a second front shell sliding block which are arranged on the rear end surface of the front shell; or

A first rear shell sliding block is arranged at the rear end of the first clamping piece, a second rear shell sliding block is arranged at the rear end of the first sliding piece, and the first rear shell sliding block and the second rear shell sliding block are respectively in sliding fit with a first rear shell sliding groove and a second rear shell sliding groove which are formed in the rear shell along the clamping direction; or

The rear end of the second clamping piece is provided with a third rear shell sliding block, the rear end of the second sliding piece is provided with a fourth rear shell sliding block, and the fourth rear shell sliding block and the third rear shell sliding block are respectively in sliding fit with a first rear shell sliding groove and a second rear shell sliding groove which are formed in the rear shell along the clamping direction.

10. The utility model provides a mobile terminal support for centre gripping mobile terminal, including bearing seat, first arm lock, second arm lock and supporting seat, first arm lock the second arm lock can set up with sliding along the centre gripping direction respectively bear the double-phase offside of seat, the supporting seat sets up bear the rear of seat, its characterized in that:

a driving gear, a reset piece and a self-locking structure are arranged in the supporting seat, the driving gear is meshed with a supporting seat rack part arranged in the supporting seat in the front-back direction, the reset piece is used for resetting the first clamping arm and the second clamping arm, and the self-locking structure is used for keeping the first clamping arm and the second clamping arm in a clamping state;

the first clamping arm is provided with a first rack part along the clamping direction, the first rack part is meshed with the driving gear, the first clamping arm is connected with the second clamping arm through a clamping gear, and the clamping gear is installed on the bearing seat and is respectively meshed with a second rack part and a third rack part which are arranged on the first clamping arm and the second clamping arm along the clamping direction;

when external pressure or pulling force act on bear the seat, bear the seat for the supporting seat slides along the fore-and-aft direction, drive gear rotates and drives first rack portion slides on the clamping direction, in order to realize first arm lock second arm lock is relative centre gripping or is unclamped in step.

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