CN212201635U

CN212201635U - U-shaped lock

Info

Publication number: CN212201635U
Application number: CN201922154551.4U
Authority: CN
Inventors: 李爱国; 赵云飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-12-22
Anticipated expiration: 2029-12-04

Abstract

The utility model relates to a U-shaped lock, including lock body and U-shaped lock beam, be equipped with left spring bolt in the lock body, right spring bolt, left spring bolt spring, right spring bolt spring and first controlling means, first controlling means includes the motor, cylindrical gear, sector gear, left spring bolt is dialled the round pin, right spring bolt is dialled the round pin, first spacing backstop portion and the spacing backstop portion of second, in operation, motor drive cylindrical gear drives sector gear rotatory, then dial round pin and right spring bolt dial the round pin and stir the overhanging shutting of left spring bolt and right spring bolt respectively or the internal contracting of lock is unblanked, first spacing backstop portion is used for the spacing backstop when being in the shutting position to sector gear, the spacing backstop when second spacing backstop portion is used for being in the position of unblanking to sector gear. The U-shaped lock is simple and convenient in structure, high in reliability, long in service life, easy to install and manufacture parts, low in production cost, safe and convenient to use, and has two functions of intelligent unlocking of external electronic equipment and mechanical key unlocking.

Description

U-shaped lock

Technical Field

The utility model relates to a tool to lock especially relates to a U-shaped lock.

Background

In the prior art, the application field of the U-shaped lock is very wide. The traditional U-shaped lock is unlocked by a key, and the problems that the key is easy to forget to carry, lose and crack and the like exist. Along with the continuous improvement of science and technology, the U-shaped lock also develops towards the intelligent direction, and intelligent electronic U-shaped locks such as coded locks, magnetic card locks, fingerprint locks and the like are provided. However, the current market of such intelligent electronic U-shaped locks still has the defects of complex structure, poor reliability, short service life, inconvenient installation and manufacture of parts, high production cost and the like. For this reason, improvements have yet to be made by the relevant practitioner.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a simple and convenient, the reliability is high, longe-lived, spare part installation preparation is easy, low in production cost and have the intelligent electron U-shaped lock that outside electronic equipment intelligence was unblanked and mechanical key two kinds of functions unblanked concurrently to convenience of customers uses and product preparation, and improves security and the reliability of using.

The purpose of the utility model is realized through the following technical scheme:

a U-shaped lock comprises a lock body and a U-shaped lock beam, wherein a left lock beam through hole and a right lock beam through hole are formed in the lock body, two ends of the U-shaped lock beam respectively penetrate through the left lock beam through hole and the right lock beam through hole, a left lock hole and a right lock hole are further formed in the inner sides of two ends of the U-shaped lock beam respectively, a left lock bolt, a right lock bolt, a left lock bolt spring for enabling the left lock bolt to keep an outward extending trend, a right lock bolt spring for enabling the right lock bolt to keep an outward extending trend, and a first control device for controlling outward extending locking or inward retracting unlocking of the left lock bolt and the right lock bolt are arranged in the lock body; the first control device comprises a motor, a cylindrical gear, a sector gear, a left lock tongue shifting pin, a right lock tongue shifting pin, a first limit stopping portion and a second limit stopping portion, the cylindrical gear is arranged on an output shaft of the motor, one end of the sector gear is rotatably pivoted to the lock body, a tooth surface is arranged at the other end of the sector gear and is meshed with the cylindrical gear through the tooth surface, the left lock tongue shifting pin and the right lock tongue shifting pin are both arranged on the sector gear, the left lock tongue shifting pin is in transmission fit with the left lock tongue, the right lock tongue shifting pin is in transmission fit with the right lock tongue, the first limit stopping portion and the second limit stopping portion are respectively positioned on two sides of the sector gear, and a first stopping end surface and a second stopping end surface are further arranged on the sector gear; the motor drives the cylindrical gear and drives the sector gear to rotate; when the sector gear rotates to the first stop end face and is abutted and matched with the first limit stop portion, the left lock tongue and the right lock tongue extend outwards respectively to enter the left lock hole and the right lock hole to realize locking, and the gear faces of the cylindrical gear and the sector gear are disengaged and meshed to be in an idle running state; when the sector gear rotates to the second stop end face and abuts against and is matched with the second limit stop portion, the left spring bolt and the right spring bolt are respectively retracted inwards to be separated from the left lock hole and the right lock hole to achieve unlocking, and the gear faces of the cylindrical gear and the sector gear are also disengaged and meshed to be in an idle running state.

Further, the first control device further comprises a limiting plate and a limiting plate spring, the limiting plate is movably arranged on one side of the sector gear, which is opposite to the cylindrical gear, the first limiting stopping part and the second limiting stopping part are respectively arranged on two sides of one end, close to the sector gear, of the limiting plate, and the limiting plate spring is used for enabling the limiting plate to keep the trend of moving towards the sector gear, so that the cylindrical gear is kept on one side edge of the tooth surface of the sector gear when the sector gear rotates to the locking position or rotates to the unlocking position.

Furthermore, the U-shaped lock further comprises a second control device used for controlling the left lock tongue and the right lock tongue to extend outwards or retract inwards to unlock, the second control device comprises a lock cylinder sleeve arranged on the lock body and a lock cylinder which is rotatably arranged in the lock cylinder sleeve and is provided with a key hole, a left lock tongue deflector rod and a right lock tongue deflector rod are arranged at the inner end of the lock cylinder, the left lock tongue deflector rod is in transmission fit with the left lock tongue, and the right lock tongue deflector rod is in transmission fit with the right lock tongue.

Further, the lock body comprises a lock inner container and a lock shell, the lock inner container comprises an inner container box and an inner container cover, the inner container box is a rectangular box with an open side, the left spring bolt, the right spring bolt, the left spring bolt spring, the right spring bolt spring and the first control device are arranged in the inner container box, the inner container cover is arranged on an open side of the inner container box and fixedly connected with the open side, and a left spring bolt extending through hole and a right spring bolt extending through hole are respectively formed in the left side wall and the right side wall of the inner container box.

Further, be equipped with hollow out construction's spring mounting groove on the limiting plate, the limiting plate spring is put into in the spring mounting groove, just the outer circumference both sides of limiting plate spring all protrusion in spring mounting groove, be equipped with the confession in the inner bag box the limiting plate spout that the limiting plate removed, be equipped with the confession on the both sides wall of limiting plate spout the notch that outer circumference both sides card of limiting plate spring was gone into, keep away from in the notch sector gear one side lateral wall with the limiting plate spring supports the cooperation of propping up, thereby makes the limiting plate keep to the trend that the sector gear direction removed, still be equipped with respectively on the both sides face of limiting plate with be close to in the notch be close to sector gear's a lateral wall backstop complex backstop piece, thereby right the limiting plate to the range of removal of sector gear.

Furthermore, the outer surfaces of the left side wall and the right side wall of the inner container box are respectively convexly provided with a left connecting plate and a right connecting plate, the lock shell comprises an upper shell and a lower shell, the upper shell is of a shell structure with an opening downwards, the lower shell is of a shell structure with an opening upwards, the opening direction of the inner container box is perpendicular to the opening direction of the upper shell and the opening direction of the lower shell, the lower part of the lock inner container is arranged in the lower shell, the upper part of the lock inner container is arranged in the upper shell, and the opening ends of the upper shell and the lower shell are mutually covered and respectively fixedly connected with the left connecting plate and the right connecting plate.

Further, the left and right sides of epitheca is equipped with first perforation and second perforation respectively, be equipped with third perforation and fourth perforation on left side connecting plate and the right connecting plate respectively, the left and right sides of inferior valve is equipped with fifth perforation and sixth perforation respectively, first perforation, third perforation and the vertical intercommunication of fifth perforation constitute the left lock beam is perforated, second perforation, fourth perforation and the vertical intercommunication of sixth perforation constitute the right lock beam is perforated.

Furthermore, screw hole columns are arranged on the left side and the right side in the lower shell, corresponding screw holes are formed in the left connecting plate and the right connecting plate, and the screw hole columns are fixedly connected with the screw holes through screws; the left side and the right side are respectively fixedly connected with a left connecting seat and a right connecting seat in the upper shell, the lower ends of the left connecting seat and the right connecting seat are respectively provided with a clamping block, the inner peripheral wall of a third perforation on the left connecting plate and the inner peripheral wall of a fourth perforation on the right connecting plate are respectively provided with a bayonet, the clamping block on the left connecting seat penetrates through the bayonet on the left connecting plate and is clamped at the lower side of the left connecting plate, and the clamping block on the right connecting seat penetrates through the bayonet on the right connecting plate and is clamped at the lower side of the.

Further, this U-shaped lock still includes battery, master control board and charging panel, battery and master control board all set up in the inner bag box, thereby be equipped with on the master control board and be used for controlling with outside electronic equipment communication connection the bluetooth module of motor work, the charging panel sets up in the inferior valve, be equipped with the interface that charges on the charging panel, the lock core cover sets up the diapire outside of inner bag box, be equipped with on the diapire of inferior valve and be used for supplying charge the first opening that the interface exposes with be used for supplying the second opening that the lock core key hole in the lock core cover exposes.

Further, this U-shaped lock still includes one and is used for the closing cap first opening and second open-ended silica gel apron, be equipped with the confession on the diapire surface of inferior valve the cavity of silica gel apron embedding, one side of cavity is equipped with opens and scratches the mouth, the opposite side of cavity is equipped with the fixed orifices, one side of silica gel apron be equipped with fixed orifices fixed connection's spliced pole, the internal surface epirelief of silica gel apron is equipped with and is used for the closing cap first open-ended convex part and is used for the closing cap second open-ended second convex part.

Compared with the prior art, the utility model discloses following beneficial effect has:

firstly, the tooth surface of the sector gear can be disengaged from the cylindrical gear no matter the U-shaped lock of the utility model is operated by the electric unlocking or the electric locking, so that the motor and the cylindrical gear are in idle running state, the sector gear and the left and right lock tongues connected with the sector gear can not be driven, thereby realizing the in-place stop of the left and right lock tongues, ensuring the smooth completion of the electric locking and unlocking operation, compared with the prior structure that the motor is controlled by the electronic sensor and the like to stop running immediately after the left and right lock tongues are in place, the utility model can avoid the damage to the motor when the motor is stopped instantly, prolong the service life of the motor, simultaneously the utility model discloses a pure mechanical structure realizes stopping in place of left and right lock tongue, also can simplify the electronic structure design of product, reduce cost to improve the accuracy and the reliability of control.

Secondly, the U-shaped lock of the utility model is designed with an elastic stop structure composed of a limit plate, a limit plate spring and the like, on one hand, when the motor drives the cylindrical gear and drives the sector gear to rotate to the unlocking or locking position, the first stop end surface and the second stop end surface on the sector gear are in flexible contact with the first limit stop part and the second limit stop part on the limit plate, thereby avoiding the damage of the motor, the cylindrical gear and the sector gear from hard contact, on the other hand, the cylindrical gear in an unlocking or locking state, even if the tooth surface of the sector gear is in a disengaged state, the edge position of one side of the tooth surface on the sector gear can be kept at any time, thereby ensuring that the motor can smoothly return to the state of meshing with the tooth surface of the sector gear when the motor drives the cylindrical gear to rotate reversely, thereby improving the reliability of the matching of the cylindrical gear and the sector gear in the operation process of opening and closing the lock.

Furthermore, the utility model discloses U-shaped lock structural design is reasonable, and is not high to the chooseing for use requirement of motor, and each spare part installation preparation is easy, and low in production cost is favorable to the mass production of product.

Finally, the utility model discloses the U-shaped lock has outside electronic equipment (for example cell-phone, panel computer) intelligence concurrently and unblanks two kinds of functions with mechanical key, convenient to use and safe and reliable. Particularly, on the one hand the utility model discloses owing to be equipped with the bluetooth module with outside electronic equipment communication connection on the main control board, can send control signal to the main control board in the lock body through this outside electronic equipment during consequently use, and then control the positive and negative rotation of the internal motor of lock, thereby realize the switching lock operation of left and right lock tongue, on the other hand the utility model discloses be equipped with left and right lock tongue transmission complex lock core, consequently it can also be opened through the key with lock core assorted.

Drawings

Fig. 1 is a schematic perspective view of a U-shaped lock of the present invention.

Fig. 2 is a schematic longitudinal sectional view of a U-shaped lock according to the present invention.

Fig. 3 is a top exploded view of the lock body of the present invention.

Fig. 4 is a bottom exploded view of the middle lock body of the present invention.

Fig. 5 is an assembly diagram of the inner box and its internal components.

Fig. 6 is an enlarged schematic view of a in fig. 5.

Fig. 7 is an exploded view of the inner case and its internal components.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

As shown in fig. 1 to 7, a U-shaped lock, including lock body 1 and U-shaped collar stay 2, be equipped with left collar stay perforation 11 and right collar stay perforation 12 on the lock body 1, the both ends of U-shaped collar stay 2 penetrate left collar stay perforation 11 and right collar stay perforation 12 respectively, the both ends inboard of U-shaped collar stay 2 still is equipped with left lockhole 21 and right lockhole 22 respectively, be equipped with left spring bolt 3 in the lock body 1, right spring bolt 4, a left spring bolt spring 30 that is used for making left spring bolt 3 keep overhanging trend, a right spring bolt spring 40 that is used for making right spring bolt 4 keep overhanging trend, a controlling means 5 that is used for controlling the overhanging shutting of left spring bolt 3 and right spring bolt 4 or the internal contracting unblanks. The first control device 5 comprises a motor 51, a cylindrical gear 52, a sector gear 53, a left bolt shifting pin 54, a right bolt shifting pin 55, a first limit stopping portion 561 and a second limit stopping portion 562, the cylindrical gear 52 is arranged on an output shaft of the motor 51, one end of the sector gear 53 is rotatably pivoted to the lock body 1, a tooth surface 531 is arranged at the other end of the sector gear 53 and is meshed with the cylindrical gear 52 through the tooth surface 531, the left bolt shifting pin 54 and the right bolt shifting pin 55 are both arranged on the sector gear 53, the left bolt shifting pin 54 is in transmission fit with the left bolt 3, the right bolt shifting pin 55 is in transmission fit with the right bolt 4, the first limit stopping portion 561 and the second limit stopping portion 562 are respectively located on two sides of the sector gear 53, and a first stopping end surface 532 and a second stopping end surface 533 are respectively arranged on two sides of one end of the sector gear 53, where the tooth surface 531 is arranged.

In the electric unlocking and locking operation, the motor 51 drives the cylindrical gear 52 and drives the sector gear 53 to rotate in the forward direction or the reverse direction. When the sector gear 53 rotates forward until the first stop end surface 532 abuts against and is matched with the first limit stop portion 561, the left bolt 3 and the right bolt 4 extend outwards respectively to enter the left lock hole 21 and the right lock hole 22 of the U-shaped lock beam 2 to realize locking, the cylindrical gear 52 is disengaged from the tooth surface 531 of the sector gear 53 to be in an idle running state, at this time, the sector gear 53 and the left bolt 3 and the right bolt 4 connected with the sector gear 53 are not driven by the continuous rotation of the motor 51, and therefore locking of the left bolt 3 and the right bolt 4 is in place and stopped, and the motor 51 also stops rotating slowly after the time is delayed to the set time of the U-shaped lock. When the sector gear 53 rotates reversely until the second stopping end surface 533 abuts against and is matched with the second limit stopping portion 562, the left bolt 3 and the right bolt 4 retract respectively to be separated from the left lock hole 21 and the right lock hole 22 of the U-shaped lock beam 2 to unlock, and the cylindrical gear 52 is disengaged from the tooth surface 531 of the sector gear 53 to be in an idle running state, at this time, the sector gear 53 and the left bolt 3 and the right bolt 4 connected with the sector gear 53 are not driven by the continuous rotation of the motor 51, so that the unlocking of the left bolt 3 and the right bolt 4 is stopped in place, and the motor 51 also stops rotating slowly after the time for setting the U-shaped lock is delayed.

The first control device 5 further comprises a limit plate 56 and a limit plate spring 57, wherein the limit plate 56 is movably arranged on one side of the sector gear 53 opposite to the cylindrical gear 52, a first limit stop 561 and a second limit stop 562 are respectively arranged on two sides of one end of the limit plate 56 close to the sector gear 53, and the limit plate spring 57 is used for keeping the limit plate 56 moving towards the sector gear 53, so that the cylindrical gear 52 is kept on one side edge of the tooth surface 531 on the sector gear 53 when the sector gear 53 rotates to the locking position or rotates to the unlocking position, and the U-shaped lock can smoothly return to the state of being meshed with the tooth surface 531 of the sector gear 53 when the motor 51 drives the cylindrical gear 52 to rotate in the opposite direction due to the need of switching the working state.

The U-shaped lock further comprises a second control device 6 for controlling the left lock bolt 3 and the right lock bolt 4 to extend outwards or retract inwards to unlock, the second control device 6 comprises a lock cylinder sleeve 61 arranged on the lock body 1 and a lock cylinder 62 which is rotatably arranged in the lock cylinder sleeve 61 and is provided with a key hole, a left lock bolt driving lever 621 and a right lock bolt driving lever 622 are arranged at the inner end of the lock cylinder 62, the left lock bolt driving lever 621 is in transmission fit with the left lock bolt 3, and the right lock bolt driving lever 622 is in transmission fit with the right lock bolt 4. When the mechanical unlocking and locking operation is performed, a key matched with the key is inserted into a keyhole of the lock cylinder 62 and the lock cylinder 62 is rotated, so that the left bolt driving lever 621 and the right bolt driving lever 622 correspondingly drive the left bolt 3 and the right bolt 4 to extend or retract outwards.

The lock body 1 comprises a lock inner container 1a and a lock outer shell 1b, the lock inner container 1a comprises an inner container box 1a1 and an inner container cover 1a2, the inner container box 1a1 is a rectangular box with an open side, a left bolt 3, a right bolt 4, a left bolt spring 30, a right bolt spring 40 and a first control device 5 are all arranged in the inner container box 1a1, the inner container cover 1a2 is covered on the open side of the inner container box 1a1 and is fixedly connected with the open side, and a left bolt extending through hole 1a11 and a right bolt extending through hole 1a12 are respectively arranged on the left side wall and the right side wall of the inner container box 1a 1.

The limiting plate 56 is provided with a spring mounting groove 563 with a hollow structure, the limiting plate spring 57 is placed in the spring mounting groove 563, both sides of the outer circumference of the limiting plate spring 57 protrude out of the spring mounting groove 563, the inner container box 1a1 is provided with a limiting plate sliding groove 1a13 for the limiting plate 56 to move, both side walls of the limiting plate sliding groove 1a13 are provided with notches 1a14 for the two sides of the outer circumference of the limiting plate spring 57 to be clamped in, one side wall 1a15 of the notch 1a14, which is far away from the sector gear 53, abuts against and is matched with the limiting plate spring 57, so that the limiting plate 56 keeps a trend of moving towards the sector gear 53, both side surfaces of the limiting plate 56 are further provided with stop blocks 564, which are in stop matching with one side wall 1a16 of the notch 1a14, which is near the sector gear 53.

The outer surfaces of the left side wall and the right side wall of the inner container box 1a1 are respectively provided with a left connecting plate 1a17 and a right connecting plate 1a18 in a protruding manner, the lock housing 1b comprises an upper shell 1b1 and a lower shell 1b2, the upper shell 1b1 is of a shell structure which is open downwards, the lower shell 1b2 is of a shell structure which is open upwards, the opening direction of the inner container box 1a1 is perpendicular to the opening directions of the upper shell 1b1 and the lower shell 1b2, the lower part of the lock inner container 1a is arranged in the lower shell 1b2, the upper part of the lock inner container 1a is arranged in the upper shell 1b1, and the opening ends of the upper shell 631 b 84 and the lower shell 1b2 are mutually covered and respectively fixedly connected with the left connecting plate 1a17 and the right connecting plate.

The left side and the right side of the upper shell 1b1 are respectively provided with a first perforation 111 and a second perforation 121, the left connecting plate 1a17 and the right connecting plate 1a18 are respectively provided with a third perforation 112 and a fourth perforation 122, the left side and the right side of the lower shell 1b2 are respectively provided with a fifth perforation 113 and a sixth perforation 123, the first perforation 111, the third perforation 112 and the fifth perforation 113 are longitudinally communicated to form a left lock beam perforation 11, and the second perforation 121, the fourth perforation 122 and the sixth perforation 123 are longitudinally communicated to form a right lock beam perforation 12.

The left side and the right side in the lower casing 1b2 are all equipped with screw hole post 1b21, are equipped with corresponding screw hole 1a19 on left connecting plate 1a17 and the right connecting plate 1a18, and screw hole post 1b21 passes through screw fixed connection with screw hole 1a 19. The left side and the right side in the upper shell 1b1 are respectively fixedly connected with a left connecting seat 1b11 and a right connecting seat 1b12, the lower ends of the left connecting seat 1b11 and the right connecting seat 1b12 are respectively provided with a clamping block 1b13, the inner peripheral wall of a third through hole 112 on the left connecting plate 1a17 and the inner peripheral wall of a fourth through hole 122 on the right connecting plate 1a18 are respectively provided with a clamping opening 1a10, a clamping block 1b13 on the left connecting seat 1b11 penetrates through a clamping opening 1a10 on the left connecting plate 1a17 to be clamped at the lower side of the left connecting plate 1a17, and a clamping block 1b13 on the right connecting seat 1b12 penetrates through a clamping opening 1a10 on the right connecting plate 631.

This U-shaped lock still includes battery 7, main control panel 8 and charging panel 9, battery 7 and main control panel 8 all set up in inner bag box 1a1, thereby be equipped with on the main control panel 8 and be used for the bluetooth module with the work of external electronic equipment (for example cell-phone, panel computer etc.) communication connection control motor 51, charging panel 9 sets up in inferior valve 1b2, be equipped with the interface 91 that charges on the charging panel 9, lock core cover 61 sets up the diapire outside at inner bag box 1a1, be equipped with on the diapire of inferior valve 1b2 and be used for supplying the first opening 1b22 that the interface 91 that charges exposes and be used for supplying the second opening 1b23 that the lock core 62 key hole in the lock core cover 61 exposes.

The U-shaped lock further comprises a silica gel cover plate 10 used for sealing the first opening 1b22 and the second opening 1b23, a concave cavity 1b24 for embedding the silica gel cover plate 10 is arranged on the outer surface of the bottom wall of the lower shell 1b2, an opening 1b25 is arranged on one side of the concave cavity 1b24, a fixing hole 1b26 is arranged on the other side of the concave cavity 1b24, a connecting column 101 fixedly connected with the fixing hole 1b26 is arranged on one side of the silica gel cover plate 10, therefore, the silica gel cover plate 10 cannot fall off from the U-shaped lock after being opened, and a first convex part 102 used for sealing the first opening 1b22 and a second convex part 103 used for sealing the second opening 1b23 are convexly arranged on the inner surface of the silica gel cover plate 10. When the U-shaped lock needs to be charged or opened by a key, the silica gel cover plate 10 is opened by opening the opening 1b25, so that the charging interface 91 or the key hole of the lock cylinder 62 is exposed, and then corresponding operation is performed.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention can not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. A U-shaped lock comprises a lock body and a U-shaped lock beam, wherein a left lock beam through hole and a right lock beam through hole are formed in the lock body, two ends of the U-shaped lock beam respectively penetrate through the left lock beam through hole and the right lock beam through hole, a left lock hole and a right lock hole are further formed in the inner sides of two ends of the U-shaped lock beam respectively, a left lock bolt, a right lock bolt, a left lock bolt spring for enabling the left lock bolt to keep an outward extending trend, a right lock bolt spring for enabling the right lock bolt to keep an outward extending trend, and a first control device for controlling outward extending locking or inward retracting unlocking of the left lock bolt and the right lock bolt are arranged in the lock body; the method is characterized in that: the first control device comprises a motor, a cylindrical gear, a sector gear, a left lock tongue shifting pin, a right lock tongue shifting pin, a first limit stopping portion and a second limit stopping portion, the cylindrical gear is arranged on an output shaft of the motor, one end of the sector gear is rotatably pivoted to the lock body, a tooth surface is arranged at the other end of the sector gear and is meshed with the cylindrical gear through the tooth surface, the left lock tongue shifting pin and the right lock tongue shifting pin are both arranged on the sector gear, the left lock tongue shifting pin is in transmission fit with the left lock tongue, the right lock tongue shifting pin is in transmission fit with the right lock tongue, the first limit stopping portion and the second limit stopping portion are respectively positioned on two sides of the sector gear, and a first stopping end surface and a second stopping end surface are further arranged on the sector gear; the motor drives the cylindrical gear and drives the sector gear to rotate; when the sector gear rotates to the first stop end face and is abutted and matched with the first limit stop portion, the left lock tongue and the right lock tongue extend outwards respectively to enter the left lock hole and the right lock hole to realize locking, and the gear faces of the cylindrical gear and the sector gear are disengaged and meshed to be in an idle running state; when the sector gear rotates to the second stop end face and abuts against and is matched with the second limit stop portion, the left spring bolt and the right spring bolt are respectively retracted inwards to be separated from the left lock hole and the right lock hole to achieve unlocking, and the gear faces of the cylindrical gear and the sector gear are also disengaged and meshed to be in an idle running state.

2. A U-lock according to claim 1, wherein: the first control device further comprises a limiting plate movably arranged on one side of the sector gear, which is opposite to the cylindrical gear, and a limiting plate spring for keeping the limiting plate moving towards the sector gear, wherein the first limiting stop and the second limiting stop are respectively arranged on the two sides of one end of the limiting plate, which is close to the sector gear, and the limiting plate spring is used for keeping the tendency of the limiting plate to move towards the sector gear, so that the cylindrical gear is kept on one side edge of the tooth surface of the sector gear when the sector gear rotates to the locking position or rotates to the unlocking position.

3. A U-lock according to claim 2, wherein: the U-shaped lock further comprises a second control device for controlling the left lock bolt and the right lock bolt to extend outwards or retract inwards to unlock the lock, the second control device comprises a lock cylinder sleeve arranged on the lock body and a lock cylinder which is rotatably arranged in the lock cylinder sleeve and is provided with a key hole, a left lock bolt deflector rod and a right lock bolt deflector rod are arranged at the inner end of the lock cylinder, the left lock bolt deflector rod is in transmission fit with the left lock bolt, and the right lock bolt deflector rod is in transmission fit with the right lock bolt.

4. A U-lock according to claim 3, wherein: the lock body comprises a lock inner container and a lock shell, the lock inner container comprises an inner container box and an inner container cover, the inner container box is a rectangular box with one open side, a left spring bolt, a right spring bolt, a left spring bolt spring, a right spring bolt spring and a first control device are arranged in the inner container box, the inner container cover is arranged on an open face of the inner container box and fixedly connected with the open face, and a left spring bolt extending penetrating opening and a right spring bolt extending penetrating opening are respectively arranged on the left side wall and the right side wall of the inner container box.

5. A U-shaped lock according to claim 4, wherein: the limiting plate is provided with a spring mounting groove with a hollow structure, the limiting plate spring is placed in the spring mounting groove, the two sides of the outer circumference of the limiting plate spring protrude out of the spring mounting groove, a limiting plate sliding groove for the limiting plate to move is formed in the inner container box, two side walls of the limiting plate sliding groove are provided with notches for the limiting plate spring to clamp into the two sides of the outer circumference of the limiting plate spring, one side wall of the sector gear is far away from the notches, the limiting plate is abutted to the limiting plate spring, the trend that the limiting plate moves towards the direction of the sector gear is kept, two side faces of the limiting plate are respectively provided with a stopping block which is close to the notch and matched with a side wall stopping block of the sector gear, and therefore the limiting plate is limited towards the moving amplitude.

6. A U-shaped lock according to claim 4 or 5, wherein: the outer surfaces of the left side wall and the right side wall of the inner container box are respectively convexly provided with a left connecting plate and a right connecting plate, the lock shell comprises an upper shell and a lower shell, the upper shell is of a shell structure with an opening downwards, the lower shell is of a shell structure with an opening upwards, the opening direction of the inner container box is perpendicular to the opening direction of the upper shell and the opening direction of the lower shell, the lower part of the lock inner container is arranged in the lower shell, the upper part of the lock inner container is arranged in the upper shell, and the opening ends of the upper shell and the lower shell are mutually covered and respectively fixedly connected with the left connecting plate and the right connecting plate.

7. A U-shaped lock according to claim 6, wherein: the left and right sides of epitheca is equipped with first perforation and second perforation respectively, be equipped with third perforation and fourth perforation on left side connecting plate and the right connecting plate respectively, the left and right sides of inferior valve is equipped with fifth perforation and sixth perforation respectively, first perforation, third perforation and the vertical intercommunication of fifth perforation constitute left side lock beam perforates, second perforation, fourth perforation and the vertical intercommunication of sixth perforation constitute right side lock beam perforates.

8. A U-shaped lock according to claim 7, wherein: screw hole columns are arranged on the left side and the right side in the lower shell, corresponding screw holes are formed in the left connecting plate and the right connecting plate, and the screw hole columns are fixedly connected with the screw holes through screws; the left side and the right side are respectively fixedly connected with a left connecting seat and a right connecting seat in the upper shell, the lower ends of the left connecting seat and the right connecting seat are respectively provided with a clamping block, the inner peripheral wall of a third perforation on the left connecting plate and the inner peripheral wall of a fourth perforation on the right connecting plate are respectively provided with a bayonet, the clamping block on the left connecting seat penetrates through the bayonet on the left connecting plate and is clamped at the lower side of the left connecting plate, and the clamping block on the right connecting seat penetrates through the bayonet on the right connecting plate and is clamped at the lower side of the.

9. A U-shaped lock according to claim 6, wherein: this U-shaped lock still includes battery, master control board and charging panel, battery and master control board all set up in the inner bag box, thereby be equipped with on the master control board and be used for controlling with outside electronic equipment communication the bluetooth module of motor work, the charging panel sets up in the inferior valve, be equipped with the interface that charges on the charging panel, the lock core cover sets up the diapire outside of inner bag box, be equipped with on the diapire of inferior valve and be used for the confession charge the first opening that the interface exposes with be used for supplying the second opening that the lock core key hole in the lock core cover exposes.

10. A U-lock according to claim 9, wherein: this U-shaped lock still includes one and is used for the closing cap first opening and second open-ended silica gel apron, be equipped with the confession on the diapire surface of inferior valve the cavity of silica gel apron embedding, one side of cavity is equipped with opens and scratches the mouth, the opposite side of cavity is equipped with the fixed orifices, one side of silica gel apron be equipped with fixed orifices fixed connection's spliced pole, the internal surface epirelief of silica gel apron is equipped with and is used for the closing cap first open-ended first convex part and is used for the closing cap second open-ended second convex part.