CN113027253A

CN113027253A - Brake lock

Info

Publication number: CN113027253A
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: 2021-06-25
Anticipated expiration: 2041-05-07
Also published as: CN113027253B

Abstract

The invention discloses a brake lock, comprising: the lock comprises a lock body, a first bearing piece, a locking piece, a first elastic piece and a driving mechanism, wherein the lock body is provided with a locking notch; when the rotating speed of the lock body is higher than the preset speed, the locking piece cannot be clamped into the lock opening, and the lock body cannot be stopped. The lock body is connected to the hub, when the running speed is lower than the preset speed, the first elastic piece continuously pushes the locking piece to abut against the lock body, and the locking piece and a locking port on the lock body have enough time to be clamped and connected, so that the lock body is stopped; on the contrary, when the driving speed is higher than the preset speed, the locking piece and the locking notch are short in contact time and cannot be clamped, locking of the lock body cannot be achieved, even if an error instruction is received or a fault occurs, locking cannot be carried out in the process of rapid driving, damage to a user due to sudden locking is prevented, and potential safety hazards are greatly reduced.

Description

Brake lock

Technical Field

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

Background

The bicycle and the electric vehicle are transportation tools which are widely used at present, can meet the short-range requirements of people, and can also play a certain exercise effect; in order to prevent theft, locks are usually added to bicycles or electric vehicles, and the current locks can be mainly divided into two types, one is manually locked and the other is locked by remote program control. Although convenient to use, the electronic lock still has the drawback, mainly reflects in the in-process of going, if the electronic lock receives wrong instruction or breaks down, locks suddenly for the motion is stopped suddenly to the automotive vehicle or electric motor car, will lead to the user because inertia is thrown away a distance, and causes the damage, has great potential safety hazard.

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 notch;

a first bearing member 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 notch;

the first elastic piece is connected with the locking piece; and

the driving mechanism is arranged on the first bearing piece and pushes the locking piece to move towards the direction far away from the locking notch; when the rotating speed of the lock body is higher than the preset speed, the locking piece cannot be clamped into the lock opening, 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 an embodiment of the present invention, the other end of the lock plate is provided with an inclined plane, and the inclined plane is tangential to the rotating track of the lock body.

According to an embodiment of the present invention, the driving mechanism further comprises a sensing member, the sensing member is disposed on a moving path of the driving mechanism, and the driving mechanism stops moving after abutting against the sensing member.

According to an embodiment of the present invention, the locking device further includes a supporting member and a second elastic member, the supporting member is rotatably disposed on the first bearing member, the supporting member is connected to the driving mechanism, and the second elastic member pushes the supporting member to abut against the locking member, so that the locking member is kept in a state of staying in the locking opening; after the driving mechanism drives the supporting piece to rotate towards the direction far 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 an embodiment of the present invention, the driving mechanism includes a second bearing member, a driving assembly and a push-pull member, the second bearing member is disposed in the first bearing member, the driving assembly is disposed in the second bearing member, the output end of the driving assembly is connected to the push-pull member, and the push-pull member is slidably disposed in the second bearing member; the driving component drives the push-pull piece, and the push-pull piece pushes the locking piece to rotate towards the direction far away from the locking notch.

According to an embodiment of the present invention, the driving assembly includes a driving member and a transmission member, and the output end of the driving member is connected to the push-pull member through the transmission member.

According to an embodiment of the present invention, the driving member includes a first gear set, a second gear set, a third gear set and a fourth gear set engaged in sequence, 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 an embodiment of the present invention, the third gear set includes a wheel shaft, a first sub-tooth, a second sub-tooth and a third elastic member, the wheel shaft is rotatably disposed on the second supporting member, the first sub-tooth is sleeved on the wheel shaft, the second sub-tooth is movably disposed on the wheel shaft, the first sub-tooth is connected to the second sub-tooth, one end of the third elastic member abuts against the second supporting member, and the other end of the third elastic member abuts 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 move along the axial direction of the wheel shaft.

According to an embodiment of the present invention, a first connecting member is disposed on a side of the first sub-tooth opposite to the second sub-tooth, a second connecting member is disposed on a side of the second sub-tooth opposite to the first sub-tooth, and the first connecting member is adapted to the second connecting member.

The invention has the beneficial effects that the lock body, the first bearing piece, the locking piece, the first elastic piece and the driving mechanism are matched for use, the lock body is connected to the hub, when the running speed is lower than the preset speed, the first elastic piece continuously pushes the locking piece to abut against the lock body, and the locking piece and a locking opening on the lock body have enough time for clamping connection, so that the locking of the lock body is realized; on the contrary, when the driving speed is higher than the preset speed, the locking piece and the locking notch are short in contact time and cannot be clamped, locking of the lock body cannot be achieved, even if an error instruction is received or a fault occurs, locking cannot be carried out in the process of rapid driving, damage to a user due to sudden locking is prevented, and potential safety hazards are 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 embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

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

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

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

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

fig. 6 is a perspective view of a second supporting member according to a first embodiment;

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

FIG. 8 is a perspective view of a support member according to an embodiment;

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

FIG. 10 is an exploded perspective view of the third gear set in accordance with the second embodiment;

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

Description of the reference numerals

1-a lock body; 11-locking the mouth;

2-a first carrier; 21-a housing; 211-through port; 212-fixed columns; 22-a cover plate; 23-an accommodating cavity;

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

4-a first elastic member;

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

6-a sensing member;

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

8-a second elastic member;

9-a rotating shaft;

100-hub.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example one

As shown in fig. 1-3, fig. 1 is a schematic view illustrating a brake lock according to a first embodiment; FIG. 2 is a perspective view of a brake lock according to a 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 piece 2, a locking piece 3, a first elastic piece 4 and a driving mechanism 5, wherein the lock body 1 is sleeved in a hub 100 and rotates along with the hub 100, the first bearing piece 2 is arranged adjacent to the lock body 1, the locking piece 3 is arranged on the first bearing piece 2 in a rotating mode, a locking notch 11 is formed in the lock body 1, the end portion of the locking piece 3 is matched with the locking notch 11, the first elastic piece 4 is connected with and acts on the locking piece 3, the locking piece 3 is pushed to continuously abut against the lock body 1 through the first elastic piece 4, or the locking piece 3 is pushed to be clamped into the locking notch 11 through the first elastic piece 4; the driving mechanism 5 is disposed on the first bearing member 2, and an output end of the driving mechanism 5 acts on the locking member 3, which pushes the locking member 3 to move in a direction away from the lock body 1. When the rotating speed of the lock body 1 or the speed of the lock notch 11 passing through the locking piece 3 is higher than the preset speed, if the locking action is to be executed, the first elastic piece 4 pushes the locking piece 3 to abut against the outer wall surface of the lock body 1, the locking piece 3 cannot be clamped into the lock notch 11, and the lock body 1 cannot stop rotating.

If the rotation speed of the lock body 1 is lower than the preset speed, the locking action is executed, the first elastic piece 4 pushes the locking piece 3 to be clamped into the lock opening 11, the lock body 1 stops rotating, and then the hub 100 also stops rotating; during the unblock, actuating mechanism 5's output acts on locking part 3, and actuating mechanism 5 is greater than the effort of first elastic component 4 to locking part 3 to the effort of locking part 3 this moment, so actuating mechanism 5 will drive locking part 3 towards the direction motion of keeping away from fore shaft 11, and the back is left out in the fore shaft 11 to locking part 3, and lock body 1 and wheel hub 100 all can the free rotation.

It should be noted that the preset speed mentioned in the present embodiment refers to a running speed at which the bicycle or the electric vehicle stops suddenly during running, 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 structure of the brake lock is correspondingly changed in an adaptive manner. In the embodiment, the preset speed value is 3km/h, and the speed greater than 3km/h is defined as fast running, and the speed less than or equal to 3km/h is defined as slow running.

Referring to fig. 2-3, in a specific application, the lock body 1 has a plurality of locking openings 11, and the plurality of locking openings 11 are equidistantly disposed around the lock body 1. In this embodiment, the number of the locking notches 11 is five, and the number of the locking notches 11 is increased to shorten the time of locking waiting of the lock body 1, that is, if only one locking notch 11 is provided, when locking is needed, if the locking notch 11 just slides over the locking member 3, the lock body 1 needs to rotate for a week before the locking notch 11 reaches the locking member 3, and the process needs the hub 100 to travel for a certain distance, which not only needs to spend unnecessary waiting time of the locking member 3, but also is inconvenient to use; on the contrary, the five locking notches 11 are arranged in the embodiment, that is, the whole lock body 1 is divided into five equal parts, so that the time for the locking piece 3 to wait for the locking notches 11 is greatly shortened when the lock is locked. Of course, the number of the locking notches 11 is not limited to five in the embodiment, and the number can be increased or decreased according to the size and the use requirement of the lock body 1.

The first bearing piece 2 comprises a case 21 and a cover plate 22, the cover plate 22 is detachably arranged on the case 21, the case 21 and the cover plate 22 jointly form an accommodating cavity 23, the locking piece 3, the first elastic piece 4 and the driving mechanism 5 are all arranged in the accommodating cavity 23, and the locking piece 3, the first elastic piece 4 and the driving mechanism 5 are protected by the arrangement of the accommodating cavity 23 to prevent the first bearing piece from being damaged by external impact; the cover plate 22 and the housing 21 are detachably disposed, so that subsequent cleaning, maintenance or replacement of the locking member 3, the first elastic member 4 and the driving mechanism 5 in the accommodating cavity 23 is facilitated. Casing 21 has seted up through-hole 211 with the relative one side of lock body 1, and through-hole 211 communicates with holding chamber 23, and the tip of locking piece 3 passes through-hole 211 butt lock body 1, and when actuating mechanism 5 promoted locking piece 3 and kept away from

lock body

1, 3 tip of locking piece retract from through-hole 211 in holding chamber 23, prevent that locking piece 3 from receiving the striking and causing the damage.

Referring to fig. 4 to 5, fig. 4 is a partial schematic structural view of a brake lock according to a first embodiment; fig. 5 is a perspective view of the locking member 3 according to the first embodiment. The locking part 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 furthermore, the rotating shaft 9 may be further disposed at an end of the locking plate 31 away from the locking notch 11 or a connection position of the locking plate 31 and the connecting plate 32; the rotating shaft 9 is disposed at one end of the push plate 33 close to the connecting plate 32 or at the connection position of the push plate 33 and the connecting plate 32. The end of the locking plate 31 far away from the connecting plate 32 is provided with an inclined surface 311, the inclined surface 311 is tangent to the circular track formed by the rotation of the lock body 1, when the lock body is driven fast, a small part of the locking plate 31 is clamped into the locking notch 11, but because the lock body 1 rotates fast, the locking notch 11 passes through the inclined surface 311, contacts with the inclined surface 311, and pushes the locking plate 31 out of the locking notch 11. Referring to fig. 3 again, the first elastic element 4 is sleeved on the rotating shaft 9, the first elastic element 4 is located between the connecting plate 32 and the casing 21, the casing 21 is provided with a fixing post 212, one end of the first elastic element 4 is connected to the fixing post 212, the other end of the first elastic element 4 is connected to any one of the locking plate 31, the connecting plate 32 or the pushing plate 33, and the first elastic element 4 continuously generates an acting force, so that the locking plate 31 continuously keeps a moving trend of approaching the lock body 1. Specifically, the lock plate 31 and the push plate 33 are both vertically disposed on the connecting plate 32, and the lock plate 31 and the push plate 33 vertically extend along different directions with the connecting plate 32 as a center to form 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 the second supporting member 51 according to the first embodiment; fig. 7 is a perspective view of the push-pull member 53 according to the first embodiment. Referring to fig. 3 again, the driving mechanism 5 includes a second carrier 51, a driving assembly 52 and a push-pull member 53, the second carrier 51 is disposed in the accommodating cavity 23, the driving assembly 52 is disposed in the second carrier 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 on the second carrier 51. The driving assembly 52 drives the pushing and pulling member 53 to move, the pushing and pulling member 53 acts on the pushing plate 33, and the pushing plate 33 drives the locking plate 31 to rotate in a direction away from the locking notch 11 through the connecting plate 32. Referring to fig. 6 and 7, preferably, the second bearing 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 to fig. 4, the driving assembly 52 includes a driving element 521 and a transmission element 522, the output end of the driving element 521 is connected to the transmission element 522, the transmission element 522 is connected to the push-pull element 53, and the transmission element 522 transmits the power output by the driving element 521 to the push-pull element 53, so as to drive the push-pull element 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 sequentially engaged with each other, 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 output by the driving member 521 is gradually reduced through the cooperation of the multiple gear sets, and meanwhile, the torque output is gradually increased by designing the cooperation of the multiple gear sets according to requirements, so that the finally output torque can satisfy the force required by the push-pull member 53 to push the push plate 33. Specifically, the output end of the driving element 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, and the gear teeth 533 mesh 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 are in a form that a pinion drives a bull gear, so as to gradually reduce the rotating 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 similarly configured.

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

Referring to fig. 8 with continued reference to fig. 3, fig. 4 and fig. 7, 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, the support member 7 and the second elastic member 8 are both disposed in the accommodating cavity 23, the support member 7 is rotatably connected with the first bearing member 2 through a rotating shaft 9, and the support member 7 is connected with the push-pull member 53; the second elastic element 8 is sleeved on the rotation shaft 9, and the second elastic element 8 acts on the supporting element 7. The second elastic member 8 is a torsion spring in the present embodiment, and is provided 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 contacts with the locking plate 31, the connecting end 72 is connected with the pushing and pulling member 53, and the rotating shaft 9 is disposed between the supporting end 71 and the connecting end 72. The support end 71 is pushed against the lock plate 31 by the second elastic member 8, so that the lock plate 31 is kept in a state of being caught in the lock notch 11; after the push-pull member 53 drives the connecting end 72 to move away from the locking plate 31, the push-pull member 53 also pushes the push plate 33 to move towards the direction close to the supporting end 71, that is, the locking plate 31 leaves the locking opening 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 toward a direction close to the push plate 33, an 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 rotating shaft 9 as an axis. Still further preferably, the locking plate 3 is provided with a first top block 34, a second top block 74 is provided between the support end 71 and the connecting end 72, and after the locking plate 31 is clamped into the locking notch 11, the support end 71 of the support member 7 abuts against the first top block 34 to prevent the locking plate 31 from being pushed out of the locking notch 11 by the rotation of the lock body 1; when the supporting end 71 rotates away from the locking plate 31, the push plate 33 rotates toward the supporting member 7 under the pushing of the push-pull member 53, and finally the first and second ejector blocks 34 and 74 abut against each other, the push-pull member 53 stops moving, and all the 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 ejector block 74, so that the lock plate 31 is completely retracted into the accommodating cavity 23.

When the driving speed is above 3km/h, and the driving element 521 receives a car locking command, the driving element 521 works, the power is transmitted to the pushing element 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 element 53 moves towards the direction close to the support element 7, at this time, under the action of the first elastic element 4 and the second elastic element 8, the locking plate 31 passes through the through hole 211 and gradually rotates towards the direction close to the lock body 1, the supporting end 71 gradually rotates towards the direction close to the locking plate 31, after the stop dog 534 on the pushing and pulling element 53 abuts against the sensing element 6, the driving element 521 stops working after receiving the command, the pushing and pulling element 53 stops moving, the first elastic element 4 pushes the locking plate 31 to abut against the outer wall surface of the lock body 1, because the lock body 1 rapidly rotates along with the wheel hub 100, the locking plate 31 is clamped into the lock opening 11, an inner wall surface of the lock opening 11 contacts with the inclined surface 311, and, the lock plate 31 cannot be inserted into the locking notch 11, and the lock body 1 cannot be locked, so that the damage to the user caused by sudden locking during fast running is prevented.

When the driving speed is below 3km/h and the driving element 521 receives a car locking command, the driving element 521 operates, power is transmitted to the pushing element 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 element 53 moves towards the direction close to the support element 7, at this time, under the action of the first elastic element 4 and the second elastic element 8, the locking plate 31 passes through the through hole 211 and gradually rotates towards the direction close to the lock body 1, the supporting end 71 gradually rotates towards the direction close to the locking plate 31, after the stop 534 on the pushing and pulling element 53 abuts against the sensing element 6, the driving element 521 stops operating after receiving the command, the pushing and pulling element 53 stops moving, the first elastic element 4 pushes the locking plate 31 to abut against the outer wall surface of the lock body 1, because the lock body 1 rotates slowly along with the hub 100, the locking plate 31 is clamped into the lock opening 11, before an inner wall surface of the lock opening 11 contacts with the inclined surface, the locking plate 31 has enough time to be clamped into the locking notch 11, and finally, an inner wall surface of the locking notch 11 only contacts one side adjacent to the inclined surface 311, so that the locking plate 31 cannot be pushed out of the locking notch 11, and meanwhile, the supporting end 71 abuts against the first top block 34, so that the acting force of the locking plate 31 for preventing the lock body 1 from continuing to rotate is increased.

In summary, through the matching 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 wheel, the first elastic piece continuously pushes the locking piece to abut against the lock body, when the driving speed is slow, the locking piece and the locking notch 11 on the lock body have enough time to be clamped, and then the locking of the lock body is realized; on the contrary, when the driving speed is high, the locking piece can not be clamped with the locking notch 11 in short contact time, the locking of the lock body can not be realized, and even if an error instruction is received or a fault occurs, the locking can not be carried out in the process of rapid driving, so that the damage to a user caused by sudden locking is prevented, and the potential safety hazard is greatly reduced.

Example two

As shown in fig. 9 to 11, fig. 9 is a perspective structural view of a third gear set 5223 in the second embodiment; fig. 10 is an exploded schematic view of the third gear set 5223 according to the second embodiment; fig. 11 is another exploded view of the third gear set 5223 in the second embodiment. The present embodiment is similar to the first embodiment, except that the third gear set 5223 of the present embodiment has a clutch function, and its specific structure is as follows:

referring to fig. 3 and 4, the third gear set 5223 includes a wheel axle 52231, a first sub-tooth 52232, a second sub-tooth 52233 and a third elastic member (not shown), the wheel axle 52231 is rotatably disposed on the second carrier 51, the first sub-tooth 52232 is sleeved on the wheel axle 52231, and the first sub-tooth 52232 is meshed 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 to the first sub-tooth 52232, and the second sub-tooth 52233 is engaged 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 action of the elastic force of the third elastic member, the second sub-tooth 52233 is tightly connected with the first sub-tooth 52232 for transmission. Specifically, a first connecting piece 52234 is connected to a side of the first sub-tooth 52232 opposite to the second sub-tooth 52233, a second connecting piece 52235 is connected to a side of the second sub-tooth 52233 opposite to the first sub-tooth 52232, and the first connecting piece 52234 is engaged with the second connecting piece 52235. The first link 52234 and the second link 52235 in this embodiment are similar in structure to the umbrella teeth. Of course, the first connecting member 52234 and the second connecting member 52235 can be arranged in a wedged manner. Further preferably, the third gear set 5223 further comprises a gasket 52236, the gasket 52236 is disposed on one side of the second sub-tooth 52233 close to the third elastic member, the third elastic member abuts against the gasket 52236, the elastic force of the third elastic member acts on the gasket 52236, the gasket 52236 transmits the force to the second sub-tooth 52233, and the force-bearing area of the second sub-tooth 52233 is increased by the arrangement of the gasket 52236, so that the second sub-tooth 52233 is uniformly stressed integrally, and the engagement between the first sub-tooth 52232 and the second sub-tooth 52233 is further enhanced; meanwhile, damage to the second sub-teeth 52233 due to local stress concentration can be avoided, and the service life of the second sub-teeth 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 be locked or unlocked, if the fourth gear set 5224 fails to rotate, the driving member 521 continuously outputs power, the power is transmitted to the first sub-tooth 52232 through the first gear set 5221 and the second gear set 5222, and since the second sub-tooth 52233 cannot transmit the power to the fourth gear set 5224, the first connecting member 52234 rotates and simultaneously 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 compresses the third elastic member. That is, the power output by the driver 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 driver 521, the first gear set 5221, the second gear set 5222 and the fourth gear set 5224.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A brake lock, comprising:

the lock body (1) is provided with a locking notch (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 notch (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 notch (11); when the rotating speed of the lock body (1) is higher than the preset speed, the locking piece (3) cannot be clamped into the lock opening (11), and the lock body (1) cannot be stopped.

2. The brake lock according to claim 1, wherein the locking member (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 notch (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).

3. The brake lock according to claim 2, wherein the other end of the lock plate (31) is provided with a slope (311), and the slope (311) is tangential to the rotation track of the lock body (1).

4. The brake lock according to claim 1, further comprising a sensing member (6), wherein the sensing member (6) is disposed on a path of movement of the driving mechanism (5), and stops moving when the driving mechanism (5) abuts against the sensing member (6).

5. The brake lock according to claim 1, further comprising a support member (7) and a second elastic member (8), wherein the support member (7) is rotatably disposed on the first carrier member (2), the support member (7) is connected to the driving mechanism (5), and the second elastic member (8) pushes the support member (7) to abut against the locking member (3), so that the locking member (3) is kept in the locked state in the locking notch (11); the driving mechanism (5) drives the supporting piece (7) to rotate towards the direction away from the locking piece (3), and then the driving mechanism (5) pushes the locking piece (3) to rotate towards the direction close to the supporting piece (7).

6. The brake lock according to any one of claims 1 to 5, wherein the driving mechanism (5) comprises a second carrier (51), a driving assembly (52) and a push-pull member (53), the second carrier (51) is disposed in the first carrier (2), the driving assembly (52) is disposed in the second carrier (51), the output end of the driving assembly (52) is connected to the push-pull member (53), and the push-pull member (53) is slidably disposed on the second carrier (51); the driving component (52) drives the push-pull piece (53), and the push-pull piece (53) pushes the locking piece (3) to rotate towards the direction far away from the locking notch (11).

7. Brake lock according to claim 6, characterized in that the drive assembly (52) comprises a drive element (521) and a transmission element (522), the output end of the drive element (521) being connected to the push-pull element (53) via the transmission element (522).

8. The brake lock according to claim 7, wherein 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 engaged in sequence, the first gear set (5221) being engaged with the output end of the driving member (521), the fourth gear set (5224) being engaged with the push-pull member (53).

9. The brake lock of claim 8, wherein the third gear set (5223) comprises an axle (52231), a first sub-tooth (52232), a second sub-tooth (52233) and a third resilient 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 resilient member abuts against the second carrier (51), and the other end of the third resilient 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 move axially along the axle (52231).

10. The vehicle brake lock according to claim 9, wherein a side of the first sub-tooth (52232) opposite to the second sub-tooth (52233) is provided with a first connecting piece (52234), a side of the second sub-tooth (52233) opposite to the first sub-tooth (52232) is provided with a second connecting piece (52235), and the first connecting piece (52234) is adapted to the second connecting piece (52235).