CN113027253B

CN113027253B - Brake lock

Info

Publication number: CN113027253B
Application number: CN202110497156.5A
Authority: CN
Inventors: 钟梦超; 甘琳; 王小文
Original assignee: Guangdong Kingly Gear Co Ltd
Current assignee: Guangdong Kingly Gear Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2024-01-12
Anticipated expiration: 2041-05-07
Also published as: CN113027253A

Abstract

The invention discloses a brake lock, comprising: the lock comprises a lock body, a first bearing piece, a lock piece, a first elastic piece and a driving mechanism, wherein the lock body is provided with a locking opening; when the rotation speed of the lock body is greater than the preset speed, the locking piece cannot be clamped into the locking port, and the lock body cannot be stopped. The lock body is connected to the hub, when the running speed is smaller than the preset speed, the first elastic piece continuously pushes the locking piece to be abutted against the lock body, and the locking piece is clamped with a locking opening on the lock body for enough time, so that the lock body is stopped; on the contrary, when the running speed is greater than the preset speed, the contact time of the locking piece and the locking opening is short, the locking piece cannot be clamped, the locking of the lock body cannot be realized, even if an error instruction is received or a fault occurs, the locking cannot be performed in the fast running process, the sudden locking is prevented from damaging a user, and the potential safety hazard is greatly reduced.

Description

Brake lock

Technical Field

The invention relates to the technical field of locks, in particular to a brake lock.

Background

The bicycle and the electric vehicle are widely used vehicles at present, so that the short-range requirements of people can be met, and a certain exercise effect can be achieved; in order to prevent theft, locks are usually added on bicycles or electric vehicles, and the existing locks mainly can be divided into two types, namely manual locking and remote program control locking, and the mode of manual locking is gradually eliminated along with technological progress and development, and electronic locks are commonly used on many self-used or shared bicycles and electric vehicles, namely locking through remote control. The electronic lock is convenient to use, but has the defect, and mainly appears in the running process, if the electronic lock receives an error instruction or fails, the electronic lock is suddenly locked, so that the automatic vehicle or the electric vehicle suddenly stops moving, a user is thrown out a distance due to inertia, damage is caused, and a large potential safety hazard exists.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a brake lock.

The invention discloses a brake lock, comprising:

the lock body is provided with a locking opening;

a first carrier disposed adjacent to the lock body;

the locking piece is rotatably arranged on the first bearing piece, and the end part of the locking piece is matched with the locking opening;

a first elastic member connected to the locking member; and

the driving mechanism is arranged on the first bearing piece and pushes the locking piece to move in the direction away from the locking opening; when the rotation speed of the lock body is greater than the preset speed, the locking piece cannot be clamped into the locking port, and the lock body cannot be stopped.

According to one embodiment of the invention, the locking piece comprises a locking plate, a connecting plate and a push plate, one end of the locking plate is connected with one end of the connecting plate, and the other end of the locking plate is matched with the locking notch; the other end of the connecting plate is connected with one end of the push plate, and the driving mechanism pushes the other end of the push plate.

According to one embodiment of the invention, the other end of the lock plate is provided with an inclined plane which is tangential to the rotating track of the lock body.

According to an embodiment of the present invention, the driving mechanism further includes a sensing element, wherein the sensing element is disposed on a moving path of the driving mechanism, and the driving mechanism stops moving when the driving mechanism abuts against the sensing element.

According to an embodiment of the invention, the locking device further comprises a support piece and a second elastic piece, wherein the support piece is rotatably arranged on the first bearing piece, the support piece is connected with the driving mechanism, and the second elastic piece pushes the support piece to abut against the locking piece, so that the locking piece is kept in a state of staying in the locking opening; after the driving mechanism drives the supporting piece to rotate towards the direction away from the locking piece, the push-pull piece pushes the locking piece to rotate towards the direction close to the supporting piece.

According to one embodiment of the invention, the driving mechanism comprises a second bearing piece, a driving assembly and a push-pull piece, wherein the second bearing piece is arranged in the first bearing piece, the driving assembly is arranged in the second bearing piece, the output end of the driving assembly is connected with the push-pull piece, and the push-pull piece is arranged on the second bearing piece in a sliding way; the driving component drives the push-pull piece, and the push-pull piece pushes the locking piece to rotate towards the direction away from the locking notch.

According to one embodiment of the invention, the driving assembly comprises a driving member and a transmission member, wherein the output end of the driving member is connected with the push-pull member through the transmission member.

According to one embodiment of the present invention, the transmission member includes a first gear set, a second gear set, a third gear set and a fourth gear set which are sequentially engaged, wherein the first gear set is engaged with the output end of the driving member, and the fourth gear set is engaged with the push-pull member.

According to one embodiment of the invention, the third gear set comprises a wheel shaft, a first sub-tooth, a second sub-tooth and a third elastic piece, wherein the wheel shaft is rotatably arranged on the second bearing piece, the first sub-tooth is sleeved on the wheel shaft, the second sub-tooth is movably arranged on the wheel shaft, the first sub-tooth is connected with the second sub-tooth, one end of the third elastic piece is abutted against the second bearing piece, and the other end of the third elastic piece is abutted against the second sub-tooth; the second gear set drives the first sub-tooth to rotate, the first sub-tooth drives the fourth gear set to rotate through the second sub-tooth, and the first sub-tooth can also push the second sub-tooth to axially move along the wheel shaft.

According to one embodiment of the invention, the first connection piece is arranged on the side of the first sub-tooth opposite to the second sub-tooth, the second connection piece is arranged on the side of the second sub-tooth opposite to the first sub-tooth, and the first connection piece is matched with the second connection piece.

The locking device has the advantages that through the matched use of the lock body, the first bearing piece, the locking piece, the first elastic piece and the driving mechanism, the lock body is connected to the hub, when the running speed is smaller than the preset speed, the first elastic piece continuously pushes the locking piece to abut against the lock body, and the locking piece is clamped with a locking opening on the lock body for enough time, so that the locking of the lock body is realized; on the contrary, when the running speed is greater than the preset speed, the contact time of the locking piece and the locking opening is short, the locking piece cannot be clamped, the locking of the lock body cannot be realized, even if an error instruction is received or a fault occurs, the locking cannot be performed in the fast running process, the sudden locking is prevented from damaging a user, and the potential safety hazard is greatly reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic illustration of a brake lock according to a first embodiment;

FIG. 2 is a perspective view of a brake lock according to the first embodiment;

FIG. 3 is another perspective view of the brake lock of the first embodiment;

FIG. 4 is a schematic view showing a partial structure of a brake lock according to the first embodiment;

FIG. 5 is a perspective view of the lock member according to the first embodiment;

FIG. 6 is a perspective view of a second carrier according to the first embodiment;

FIG. 7 is a perspective view of a push-pull member according to the first embodiment;

fig. 8 is a perspective view of a supporting member in the first embodiment;

FIG. 9 is a perspective view of a third gear set of the second embodiment;

FIG. 10 is an exploded view of a third gear set of the second embodiment;

FIG. 11 is another exploded view of the third gear set of the second embodiment.

Description of the reference numerals

1-a lock body; 11-locking;

2-a first carrier; 21-a housing; 211-through openings; 212-fixing the column; 22-cover plate; 23-accommodating cavity;

3-locking piece; 31-a lock plate; 311-inclined plane; 32-connecting plates; 33-pushing plate; 34-a first top block;

4-a first elastic member;

5-a driving mechanism; 51-a second carrier; 511-a chute; 52-a drive assembly; 521-driving member; 522—a transmission; 5221-a first gear set; 5222-a second gear set; 5223-third gear set; 52231-wheel axle; 52232-first child tooth; 52233-second child tooth; 52234-first connector; 52235-second connector; 52236-gaskets; 5224-fourth gear set; 523-worm; 53-push-pull member; 531-guide block; 532-connecting grooves; 533-gear teeth; 534-stop;

6-a sensing piece;

7-a support; 71-a support end; 72-connecting end; 73-connecting blocks; 74-a second top block;

8-a second elastic member;

9-rotating shaft;

100-hub.

Detailed Description

Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Example 1

1-3, FIG. 1 is a schematic diagram illustrating the use of a brake lock according to a first embodiment; FIG. 2 is a perspective view of a brake lock according to the first embodiment; fig. 3 is another perspective view of the brake lock according to the first embodiment. The brake lock comprises a lock body 1, a first bearing part 2, a locking part 3, a first elastic part 4 and a driving mechanism 5, wherein the lock body 1 is sleeved into a hub 100 and rotates along with the hub 100, the first bearing part 2 is arranged adjacent to the lock body 1, a locking part 3 is arranged on the first bearing part 2, the locking part 3 is rotationally arranged on the first bearing part 2, the lock body 1 is provided with a locking notch 11, the end part of the locking part 3 is matched with the locking notch 11, the first elastic part 4 is connected and acts on the locking part 3, and the locking part 3 is pushed by the first elastic part 4 to continuously abut against the lock body 1, or the locking part 3 is pushed by the first elastic part 4 to be clamped into the locking notch 11; the driving mechanism 5 is disposed on the first carrier 2, and an output end of the driving mechanism 5 acts on the locking member 3, so that the locking member 3 is pushed to move away from the lock body 1. When the rotation speed of the lock body 1 or the speed of the locking notch 11 passing through the locking piece 3 is greater than the preset speed, if the locking action is to be executed, the first elastic piece 4 will push the locking piece 3 to abut against the outer wall surface of the lock body 1, the locking piece 3 cannot be blocked into the locking notch 11, and the lock body 1 cannot stop rotating.

If the rotation speed of the lock body 1 is smaller than the preset speed, the locking action is executed, the first elastic piece 4 pushes the locking piece 3 to be clamped into the locking opening 11, the lock body 1 stops rotating, and the hub 100 also stops rotating; when the lock is unlocked, the output end of the driving mechanism 5 acts on the locking piece 3, and at the moment, the acting force of the driving mechanism 5 on the locking piece 3 is larger than the acting force of the first elastic piece 4 on the locking piece 3, so that the driving mechanism 5 drives the locking piece 3 to move in the direction away from the locking notch 11, and after the locking piece 3 is separated from the locking notch 11, the lock body 1 and the hub 100 can rotate freely.

It should be noted that, the preset speed in this embodiment refers to a running speed that is suddenly stopped during the running process of the bicycle or the electric vehicle, but does not cause great damage to the user; the preset speed is not a fixed value, and can be set according to requirements, for example, the preset speed can be 4km/h, 5km/h or 6km/h, and the brake lock structure can be correspondingly changed. In this embodiment, the value of the preset speed is 3km/h, and a speed greater than 3km/h is defined as fast running, and a speed less than or equal to 3km/h is defined as slow running.

Referring back to fig. 2-3, in a specific application, the lock body 1 is provided with a plurality of locking openings 11, and the locking openings 11 are equidistantly arranged around the lock body 1. In this embodiment, the number of the locking openings 11 is five, and by increasing the number of the locking openings 11, the waiting time of the locking body 1 is shortened, namely, if only one locking opening 11 is provided, when the locking is needed, if the locking opening 11 just slides through the locking piece 3, the locking body 1 needs to rotate for a short time before the locking opening 11 reaches the locking piece 3, and the hub 100 needs to travel a certain distance, so that not only does the unnecessary waiting time of the locking piece 3 need to be spent, but also the locking piece 3 is inconvenient to use; on the contrary, in this embodiment, five locking openings 11 are formed, that is, the whole lock body 1 is divided into five equal parts, so that the time for waiting for the locking openings 11 by the locking member 3 is greatly shortened when locking. Of course, the number of locking ports 11 is not limited to five in the present embodiment, and may be increased or decreased according to the size of the lock body 1 and the use requirement.

The first bearing part 2 comprises a shell 21 and a cover plate 22, the cover plate 22 is detachably arranged on the shell 21, the shell 21 and the cover plate 22 jointly form a containing cavity 23, the locking part 3, the first elastic part 4 and the driving mechanism 5 are arranged in the containing cavity 23, and the locking part 3, the first elastic part 4 and the driving mechanism 5 are protected from being damaged by external impact through the arrangement of the containing cavity 23; the cover plate 22 and the casing 21 are detachably arranged, so that the locking piece 3, the first elastic piece 4 and the driving mechanism 5 in the accommodating cavity 23 can be cleaned, maintained or replaced later. The through hole 211 is formed in one side, opposite to the lock body 1, of the casing 21, the through hole 211 is communicated with the accommodating cavity 23, the end portion of the locking piece 3 penetrates through the through hole 211 to be abutted against the lock body 1, and when the driving mechanism 5 pushes the locking piece 3 to be far away from the lock body 1, the end portion of the locking piece 3 is retracted into the accommodating cavity 23 from the through hole 211, so that the locking piece 3 is prevented from being damaged due to impact.

Referring to fig. 4-5, fig. 4 is a schematic partial structure of a brake lock according to the first embodiment; fig. 5 is a perspective view of the locking member 3 according to the first embodiment. The locking piece 3 comprises a locking plate 31, a connecting plate 32 and a push plate 33, one end of the locking plate 31 is matched with the locking notch 11, the other end of the locking plate 31 is connected with one end of the connecting plate 32, the other end of the connecting plate 32 is connected with one end of the push plate 33, and the output end of the driving mechanism 5 pushes the other end of the push plate 33. The connecting plate 32 is rotatably connected with the first bearing member 2 through the rotating shaft 9, and in addition, the rotating shaft 9 can be also arranged at one end of the locking plate 31 far away from the locking port 11 or at the connecting position of the locking plate 31 and the connecting plate 32; or the rotation shaft 9 is arranged at one end of the push plate 33 close to the connecting plate 32 or at the connecting position of the push plate 33 and the connecting plate 32. The lock plate 31 is provided with an inclined surface 311 at one end far away from the connecting plate 32, the inclined surface 311 is tangent with a circular track formed by rotation of the lock body 1, and when the vehicle runs fast, a small part of the lock plate 31 is clamped into the lock notch 11, but because the rotating speed of the lock body 1 is fast, the lock notch 11 is contacted with the inclined surface 311 when passing through the inclined surface 311, and the lock plate 31 is pushed out of the lock notch 11. Referring back to fig. 3, the first elastic member 4 is sleeved on the rotating shaft 9, the first elastic member 4 is located between the connecting plate 32 and the casing 21, the casing 21 is provided with a fixing column 212, one end of the first elastic member 4 is connected with the fixing column 212, the other end of the first elastic member 4 is connected with any one needle of the lock plate 31, the connecting plate 32 or the push plate 33, and the first elastic member 4 continuously generates an acting force, so that the lock plate 31 continuously keeps a moving trend towards the lock body 1. Specifically, the lock plate 31 and the push plate 33 are vertically disposed on the connecting plate 32, and the lock plate 31 and the push plate 33 vertically extend in different directions with the connecting plate 32 as a center, thereby forming a "Z" shape. The first elastic member 4 is a torsion spring.

As shown in fig. 6-7, fig. 6 is a perspective view of a second carrier 51 according to the first embodiment; fig. 7 is a perspective view of the push-pull member 53 in the first embodiment. Referring back to fig. 3, the driving mechanism 5 includes a second carrying member 51, a driving assembly 52 and a push-pull member 53, the second carrying member 51 is disposed in the accommodating cavity 23, the driving assembly 52 is disposed in the second carrying member 51, the push-pull member 53 is connected to an output end of the driving assembly 52, and meanwhile, the push-pull member 53 is slidably disposed in the second carrying member 51. The driving component 52 drives the push-pull piece 53 to move, the push-pull piece 53 acts on the push plate 33, and the push plate 33 drives the lock plate 31 to rotate in a direction away from the lock notch 11 through the connecting plate 32. Referring to fig. 6 and 7, preferably, the second carrying member 51 is provided with a sliding slot 511, the push-pull member 53 is provided with a guide block 531, the guide block 531 is slidably disposed in the sliding slot 511, and the driving assembly 52 drives the push-pull member 53 to move along the opening direction of the sliding slot 511, so as to improve the accuracy and stability of the movement of the push-pull member 53. Referring back to fig. 4, the driving assembly 52 includes a driving member 521 and a transmission member 522, wherein an output end of the driving member 521 is connected to the transmission member 522, the transmission member 522 is connected to the push-pull member 53, and the transmission member 522 transmits the power output by the driving member 521 to the push-pull member 53, so as to drive the push-pull member 53 to move. Further, the transmission member 522 includes a first gear set 5221, a second gear set 5222, a third gear set 5223 and a fourth gear set 5224, the first gear set 5221, the second gear set 5222, the third gear set 5223 and the fourth gear set 5224 are meshed with each other in sequence, the first gear set 5221 is connected with the driving member 521, the fourth gear set 5224 is connected with the push-pull member 53, and the rotation speed of the output of the driving member 521 is gradually reduced by matching the multiple gear sets, meanwhile, the matching of the multiple gear sets is designed according to the requirement, the torque of the output is gradually increased, so that the torque of the final output can meet the force required by the push-pull member 53 to push the push plate 33. Specifically, the output end of the driving member 521 is sleeved with a worm 523, and the first gear set 5221 is meshed with the worm 523; the push-pull member 53 is provided with gear teeth 533, the gear teeth 533 being meshed with the fourth gear set 5224. In this embodiment, the driving member 521 is a motor.

Preferably, in order to increase the acting force of the push-pull member 53 on the push plate 33, the multi-stage gear sets all adopt a form of driving a large gear by a small gear, so as to gradually reduce the rotation speed output by the driving member 521, increase the output torque between the gears, and further increase the output force of the push-pull member 53. Specifically, the first gear set 5221, the second gear set 5222, the third gear set 5223 and the fourth gear set 5224 are similar in structure.

Referring back to fig. 3, 4 and 7, the brake lock preferably further includes a sensing member 6, wherein the sensing member 6 is disposed on the second carrying member 51, and the sensing member 6 is further disposed on the moving path of the push-pull member 53. The push-pull member 53 is further provided with a stop 534, the push-pull member 53 drives the stop 534 to move together, and when the sensing member 6 senses the stop 534, the driving member 521 stops working, so that the push-pull member 53 also stops moving. In particular, the sensing element 6 may be an existing contact switch, such as a proximity switch, but is not limited to this case; but also non-contact switches such as infrared induction switches. In this embodiment, a contact switch is used.

Please refer to fig. 3, 4 and 7, and referring to fig. 8, fig. 8 is a perspective view of the supporting member 7 according to the first embodiment. Preferably, the brake lock further comprises a support member 7 and a second elastic member 8, wherein the support member 7 and the second elastic member 8 are both arranged in the accommodating cavity 23, the support member 7 is rotationally connected with the first bearing member 2 through the rotating shaft 9, and the support member 7 is connected with the push-pull member 53; the second elastic member 8 is sleeved on the rotating shaft 9, and the second elastic member 8 acts on the supporting member 7. The second elastic member 8 is a torsion spring in this embodiment, which is arranged in the same manner as the first elastic member 4. In a specific application, the supporting member 7 is provided with a supporting end 71 and a connecting end 72, the supporting end 71 is in contact with the lock plate 31, the connecting end 72 is connected with the push-pull member 53, and the rotating shaft 9 is arranged between the supporting end 71 and the connecting end 72. The second elastic piece 8 pushes the supporting end 71 to abut against the locking plate 31, so that the locking plate 31 is kept clamped into the locking notch 11; after the push-pull member 53 drives the connection end 72 to move away from the lock plate 31, the push-pull member 53 also pushes the push plate 33 to move towards the direction approaching the support end 71, i.e. the lock plate 31 leaves the lock slot 11, and the lock body 1 can rotate freely.

Further preferably, the supporting member 7 is provided with a connecting block 73, the connecting block 73 is located at a position close to the connecting end 72, the push-pull member 53 is provided with a connecting groove 532, the connecting block 73 is slidably disposed in the connecting groove 532, when the push-pull member 53 moves towards the direction close to the push plate 33, the inner wall of the connecting groove 532 abuts against the connecting block 73, and the connecting block 73 is pulled to enable the supporting member 7 to rotate around the rotation shaft 9. Still further preferably, the lock plate 3 is provided with a first ejector block 34, and a second ejector block 74 is arranged between the supporting end 71 and the connecting end 72, and after the lock plate 31 is clamped into the locking notch 11, the supporting end 71 of the supporting piece 7 abuts against the first ejector block 34 to prevent the lock body 1 from rotating to eject the lock plate 31 out of the locking notch 11; when the supporting end 71 rotates away from the lock plate 31, the push plate 33 is pushed by the push-pull member 53 to rotate toward the direction approaching to the supporting member 7, and finally the first top block 34 and the second top block 74 are abutted against each other, so that the push-pull member 53 stops moving, and all three are in a static state.

In the unlocked state, one end of the push-pull member 53 abuts against the push plate 33, and the other end of the push-pull member 53 pulls the second top block 74, so that the lock plate 31 is completely retracted into the accommodating cavity 23.

When the running speed is above 3km/h, and the driving member 521 receives a car locking command, the driving member 521 works, power is transmitted to the pushing member 53 through the first gear set 5221, the second gear set 5222, the third gear set 5223 and the fourth gear set 5224, the pushing member 53 moves towards the direction approaching the supporting member 7, at this time, under the action of the first elastic member 4 and the second elastic member 8, the locking plate 31 passes through the through hole 211 and gradually rotates towards the direction approaching the lock body 1, the supporting end 71 gradually rotates towards the direction approaching the locking plate 31, after the stop 534 on the pushing member 53 abuts against the sensing member 6, the driving member 521 receives the command to stop working, the pushing member 53 stops moving, the first elastic member 4 pushes the locking plate 31 to abut against the outer wall surface of the lock body 1, and as the lock body 1 rotates rapidly along with the hub 100, the locking plate 31 is blocked into the locking hole 11, and an inner wall surface of the locking hole 11 contacts with the inclined surface 311, and pushes the locking plate 31 out of the locking hole 11, so that the locking plate 31 cannot be blocked into the locking hole 11, and the stop of the fast running of the user can be prevented.

When the running speed is below 3km/h and the driving member 521 receives a car locking command, the driving member 521 works, the power is transmitted to the pushing member 53 through the first gear set 5221, the second gear set 5222, the third gear set 5223 and the fourth gear set 5224, the pushing member 53 moves towards the direction approaching the supporting member 7, at this time, under the action of the first elastic member 4 and the second elastic member 8, the locking plate 31 passes through the through hole 211 and gradually rotates towards the direction approaching the locking member 1, the supporting end 71 gradually rotates towards the direction approaching the locking plate 31, after the stop 534 on the pushing member 53 abuts against the sensing member 6, the driving member 521 receives the command to stop working, the pushing member 53 stops moving, the first elastic member 4 pushes the locking plate 31 against the outer wall surface of the locking member 1, and as the locking member 1 rotates slowly along with the hub 100, the locking plate 31 is blocked into the locking plate 11, and before the inner wall surface of the locking plate 11 contacts with the inclined surface 311, the locking plate 31 is blocked into the locking plate 11 for a sufficient time, and finally, the inner wall surface of the locking plate 11 contacts with the inclined surface 311 to push the locking plate 31 out of the locking plate 31, and the acting force of the locking plate 31 cannot be further prevented from continuing to rotate, and the locking plate 31 is prevented from abutting against the rotating against the top surface 31.

In summary, through the cooperation of the lock body, the first bearing member, the locking member, the first elastic member and the driving mechanism, the lock body is connected to the wheel, the first elastic member continuously pushes the locking member to abut against the lock body, when the running speed is slow, the locking member and the locking opening 11 on the lock body have enough time to be clamped, so that the locking of the lock body is realized; on the contrary, when the running speed is high, the contact time of the locking piece and the locking opening 11 is short, the locking can not be carried out, and the locking body can not be stopped, so that even if an error command is received or a fault occurs, the locking can not be carried out in the fast running process, the sudden stopping is prevented from damaging a user, and the potential safety hazard is greatly reduced.

Example two

As shown in fig. 9-11, fig. 9 is a perspective view of a third gear set 5223 in the second embodiment; FIG. 10 is an exploded view of a third gear set 5223 of the second embodiment; fig. 11 is another exploded view of the third gear set 5223 of the second embodiment. The third gear set 5223 of the present embodiment has a clutch function similar to that of the first embodiment, and has the following specific structure:

referring to fig. 3 and fig. 4, the third gear set 5223 includes a wheel shaft 52231, a first sub-tooth 52232, a second sub-tooth 52233 and a third elastic member (not shown), the wheel shaft 52231 is rotatably disposed on the second bearing member 51, the first sub-tooth 52232 is sleeved on the wheel shaft 52231, and the first sub-tooth 52232 is engaged with the second gear set 5222; the second sub-tooth 52233 is movably disposed on the axle 52231, and the second sub-tooth 52233 is connected with the first sub-tooth 52232, and the second sub-tooth 52233 is meshed with the fourth gear set 5224; the third elastic member is sleeved on the axle 52231, one end of the third elastic member abuts against the second sub-tooth 52233, the other end of the third elastic member abuts against the second bearing member 51, and under the elastic action of the third elastic member, the second sub-tooth 52233 is tightly connected with the first sub-tooth 52232 and transmits. Specifically, a first connecting member 52234 is connected to a side of the first sub-tooth 52232 opposite to the second sub-tooth 52233, a second connecting member 52235 is connected to a side of the second sub-tooth 52233 opposite to the first sub-tooth 52232, and the first connecting member 52234 is engaged with the second connecting member 52235. The first and second connectors 52234, 52235 are similar in structure to the teeth of a umbrella. Of course, in addition to this, the first connector 52234 and the second connector 52235 may be provided by a wedging manner. Still preferably, the third gear set 5223 further includes a spacer 52236, the spacer 52236 is disposed on one side of the second sub-tooth 52233 near the third elastic member, and the third elastic member abuts against the spacer 52236, the elastic force of the third elastic member acts on the spacer 52236, the spacer 52236 transfers the force to the second sub-tooth 52233, and by the arrangement of the spacer 52236, the force bearing area of the second sub-tooth 52233 is increased, so that the second sub-tooth 52233 is uniformly stressed as a whole, and the engagement between the first sub-tooth 52232 and the second sub-tooth 52233 is further enhanced; meanwhile, the damage of the second sub-teeth 52233 caused by local stress concentration can be avoided, and the service life of the second sub-teeth 52233 is prolonged. In this embodiment, the third elastic member is a spring. The gasket 52236 is made of graphite.

When the driving member 521 drives the push-pull member 53 to lock or unlock, if the fourth gear set 5224 fails and cannot rotate, the driving member 521 continuously outputs power, the power is transmitted to the first sub-tooth 52232 via the first gear set 5221 and the second gear set 5222, and the second sub-tooth 52233 cannot transmit power to the fourth gear set 5224, so that the first connecting member 52234 rotates and pushes the second connecting member 52235 to move axially, and the second connecting member 52235 drives the second sub-tooth 52233 to move together and further compress the third elastic member. That is, the power output from the driving member 521 is finally converted into the idle rotation of the first sub-tooth 52232 and the first connecting member 52234, thereby preventing further damage to the driving member 521, the first gear set 5221, the second gear set 5222 and the fourth gear set 5224.

The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.

Claims

1. A brake lock, comprising:

a lock body (1) provided with a locking opening (11);

a first carrier (2) arranged adjacent to the lock body (1);

the locking piece (3) is rotatably arranged on the first bearing piece (2), and the end part of the locking piece (3) is matched with the locking opening (11);

a first elastic member (4) connected to the locking member (3); and

the driving mechanism (5) is arranged on the first bearing piece (2), and the driving mechanism (5) pushes the locking piece (3) to move in a direction away from the locking opening (11); when the rotation speed of the lock body (1) is greater than a preset speed, the locking piece (3) cannot be clamped into the locking opening (11), and the lock body (1) cannot be stopped;

the locking piece (3) comprises a locking plate (31), a connecting plate (32) and a pushing plate (33), one end of the locking plate (31) is connected with one end of the connecting plate (32), and the other end of the locking plate (31) is matched with the locking opening (11); the other end of the connecting plate (32) is connected with one end of the push plate (33), and the driving mechanism (5) pushes the other end of the push plate (33);

the other end of the lock plate (31) is provided with an inclined plane (311), and the inclined plane (311) is tangential with the rotating track of the lock body (1);

the locking device further comprises a support piece (7) and a second elastic piece (8), wherein the support piece (7) is rotatably arranged on the first bearing piece (2), the support piece (7) is connected with the driving mechanism (5), and the second elastic piece (8) pushes the support piece (7) to abut against the locking piece (3) so that the locking piece (3) keeps in a state of staying in the locking opening (11); after the driving mechanism (5) drives the supporting piece (7) to rotate in the direction away from the locking piece (3), the driving mechanism (5) pushes the locking piece (3) to rotate in the direction close to the supporting piece (7);

the driving mechanism (5) comprises a second bearing piece (51), a driving assembly (52) and a push-pull piece (53), wherein the second bearing piece (51) is arranged in the first bearing piece (2), the driving assembly (52) is arranged in the second bearing piece (51), the output end of the driving assembly (52) is connected with the push-pull piece (53), and the push-pull piece (53) is arranged in the second bearing piece (51) in a sliding manner; the driving assembly (52) drives the push-pull piece (53), and the push-pull piece (53) pushes the locking piece (3) to rotate in a direction away from the locking port (11);

the second bearing piece (51) is provided with a sliding groove (511), the push-pull piece (53) is provided with a guide block (531), the guide block (531) is slidably arranged in the sliding groove (511), and the driving assembly (52) drives the push-pull piece (53) to move along the opening direction of the sliding groove (511);

the driving assembly (52) comprises a driving piece (521) and a transmission piece (522), and the output end of the driving piece (521) is connected with the push-pull piece (53) through the transmission piece (522);

the transmission member (522) comprises a first gear set (5221), a second gear set (5222), a third gear set (5223) and a fourth gear set (5224) which are sequentially meshed, the first gear set (5221) is meshed with the output end of the driving member (521), and the fourth gear set (5224) is meshed with the push-pull member (53);

a stop block (534) is further arranged on the push-pull piece (53);

the support piece (7) is provided with a support end (71) and a connecting end (72), the support end (71) is in contact with the lock plate (31), and the connecting end (72) is connected with the push-pull piece (53);

the support piece (7) is provided with a connecting block (73), the connecting block (73) is located at a position close to the connecting end (72), the push-pull piece (53) is provided with a connecting groove (532), and the connecting block (73) is slidably arranged in the connecting groove (532).

2. The brake lock according to claim 1, further comprising a sensing member (6), wherein the sensing member (6) is arranged on a path along which the driving mechanism (5) moves, and wherein the driving mechanism (5) stops moving after abutting the sensing member (6).

3. The brake lock according to claim 1, wherein the third gear set (5223) includes an axle (52231), a first sub-tooth (52232), a second sub-tooth (52233) and a third elastic member, the axle (52231) is rotatably disposed on the second carrier (51), the first sub-tooth (52232) is sleeved on the axle (52231), the second sub-tooth (52233) is movably disposed on the axle (52231), the first sub-tooth (52232) is connected with the second sub-tooth (52233), one end of the third elastic member abuts against the second carrier (51), and the other end of the third elastic member abuts against the second sub-tooth (52233); the second gear set (5222) drives the first sub-tooth (52232) to rotate, the first sub-tooth (52232) drives the fourth gear set (5224) to rotate through the second sub-tooth (52233), and the first sub-tooth (52232) can also push the second sub-tooth (52233) to axially move along the wheel shaft (52231).

4. A brake lock according to claim 3, wherein a first connecting member (52234) is provided on a side of the first sub-tooth (52232) opposite to the second sub-tooth (52233), a second connecting member (52235) is provided on a side of the second sub-tooth (52233) opposite to the first sub-tooth (52232), and the first connecting member (52234) is adapted to the second connecting member (52235).