CN217892963U - Brake device - Google Patents

Abstract

The utility model relates to a brake technical field discloses a brake equipment, include: the frame with wheels is provided with a first parking position and a second parking position, and the wheels are provided with lock grooves; the locking mechanism comprises a locking piece which can move up and down so as to lock in the locking groove or unlock from the locking groove; the driving mechanism comprises a pedal, a push rod and a limiting rotary table, the limiting rotary table is movably arranged at a first parking position or a second parking position, and the limiting rotary table can be driven to switch between the first parking position and the second parking position by stepping down the pedal; the push rod is movably abutted against the limiting turntable and can drive the locking piece to be locked into the locking groove; when the limiting turntable stops at the first stopping position, the locking piece is separated from the locking groove; when the limiting turntable stops at the second stopping position, the locking piece is locked into the locking groove. The utility model has the advantages that the brake and the brake release can be completed by pedaling, thereby effectively preventing the vamp from being scratched or dirtied; the brake device can be applied to a wheel capable of rotating 360 degrees.

Description

Brake device

Technical Field

The utility model relates to a brake technical field especially relates to a brake equipment.

Background

The baby carriage is provided with a brake device, so that the baby carriage has a function of stopping parking. The existing brake device generally adopts a pedal to lock a locking piece into a locking groove of a wheel so as to realize braking; when the brake needs to be released, the locking piece is driven to be separated from the locking groove by hooking the brake upwards through the foot, so that the brake is released. In this process, the upper is easily scratched or soiled.

On the other hand, the conventional braking devices are generally directed to fixed wheels, but the stroller often requires 360-degree rotation of the wheels, and the conventional braking devices cannot effectively brake the 360-degree rotatable wheels.

SUMMERY OF THE UTILITY MODEL

Not enough to the above that prior art exists, the utility model aims to solve the technical problem that a step on the footboard through the foot and both can brake, can separate the brake again, and can be applied to the brake equipment of 360 degrees rotation type wheels.

The utility model provides a technical scheme that its technical problem adopted is, provides a brake equipment, include:

the parking device comprises a frame with wheels, wherein the frame is provided with a first parking position and a second parking position, and the wheels are provided with a plurality of locking grooves;

the locking mechanism is arranged on the frame and comprises a locking piece, and the locking piece is arranged on the frame in a lifting motion manner so as to be locked into the locking groove or unlocked from the locking groove;

the driving mechanism is mounted on the frame and comprises a pedal, a push rod and a limiting rotary table, the limiting rotary table is movably arranged on the first parking position or the second parking position, and the limiting rotary table can be driven to switch between the first parking position and the second parking position by stepping down the pedal; the push rod is movably abutted against the limiting rotary disc and can drive the locking piece to be locked into the locking groove;

when the limiting turntable stops at the first stop position, the locking piece is separated from the locking groove; when the limiting turntable stops at the second stopping position, the locking piece is locked into the locking groove.

Furthermore, the frame is provided with a limiting seat, and the first parking position and the second parking position are both arranged on the limiting seat;

the driving mechanism comprises a pushing piece, the pushing piece is movably arranged on the limiting seat, and the pushing piece can push the limiting turntable so as to enable the limiting turntable to be switched between the first parking position and the second parking position.

Furthermore, a plurality of first abutting blocks are arranged on the limiting rotary disc along the circumferential direction of the limiting rotary disc; the inner wall of the limiting seat is provided with a plurality of sliding grooves and a plurality of first inclined walls close to the sliding grooves;

when the limiting rotary disc stops at the second stop position, the first abutting block abuts against the first inclined wall; when the limiting turntable stops at the first stopping position, the first abutting block is located in the sliding groove.

Furthermore, the sliding groove is adjacent to the first inclined wall, a limiting block protrudes from the first inclined wall, and the first abutting block can slide along the first inclined wall and abut against the limiting block.

Furthermore, a second inclined wall is arranged on the limiting block, and the first abutting block can slide into the sliding groove along the second inclined wall.

Furthermore, the pushing piece is provided with a plurality of sliding blocks along the circumferential direction, the sliding blocks are slidably arranged in the sliding grooves, and when the first pushing block is located in the sliding grooves, the first pushing block pushes against the sliding blocks.

Furthermore, the limiting rotary disc is uniformly provided with four first abutting blocks along the circumferential direction, four second abutting blocks are further uniformly provided along the circumferential direction of the limiting rotary disc, one second abutting block is arranged between two adjacent first abutting blocks, one first abutting block is arranged between two adjacent second abutting blocks, the protruding height of each first abutting block is larger than that of each second abutting block, and the number of the sliding grooves is four;

the first abutting block is provided with a third inclined wall, the second abutting block is provided with a fourth inclined wall, the sliding block is provided with a fifth inclined wall, the third inclined wall can slide along the fifth inclined wall, and the fourth inclined wall can slide along the fifth inclined wall.

Further, the frame comprises a frame body and a wheel seat, the wheel is mounted on the wheel seat, and the wheel seat can rotate 360 degrees relative to the frame body;

the locking mechanism further comprises an upper offset and a lower offset, and the upper offset is arranged in the frame body and movably abutted against the push rod; the lower offset is arranged in the wheel seat and movably abutted against the upper offset; the push rod can drive the locking piece to move up and down through the upper offset and the lower offset.

Furthermore, a sixth inclined wall is arranged on the upper offset pin, a seventh inclined wall is arranged on the push rod, and the sixth inclined wall can slide along the seventh inclined wall;

one end of the locking piece, which is far away from the locking groove, is provided with a tensioning spring; an unlocking spring is arranged in the wheel seat, and when the limiting rotary disc is switched from the second parking position to the first parking position, the unlocking spring can drive the locking piece to be separated from the locking groove.

Furthermore, the driving mechanism comprises a driving block, and the pedal is hinged on the frame and movably abutted against the driving block; the driving block is arranged on the frame in a lifting manner and movably abutted against the abutting piece;

the pedal is provided with a first reset spring, the driving block is provided with a second reset spring, and the push rod is provided with a third reset spring.

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

the utility model discloses in, set up spacing carousel among the actuating mechanism, realized the locking and the unblock of locking piece through the position that spacing carousel berthhed, brake equipment's brake promptly and separate the brake. When the limiting rotary disc stops at the first stopping position, the brake device is in a brake releasing state; when the limiting turntable stops at the second stopping position, the brake device is in a braking state. No matter the spacing carousel switches to the second from first berth position, still switches to first berth position from the second berth position, all can step on pedal through the foot and realize, and need not collude pedal on the foot when opening the brake, can prevent that the vamp from being scraped the flower or being made dirty. Step on pedal down at every turn, spacing carousel can only follow a direction and rotate (for example clockwise), realize that brake equipment switches between two kinds of states of braking and relieving the brake, four first pieces of supporting and four second pieces of supporting of equipartition have been distributed along spacing carousel circumference, so as to rotate about 45 degrees at every turn spacing carousel, can accomplish once and relieve the switch between two kinds of states of braking, and when switching at every turn, through crowded third skew wall or the fourth skew wall that pushes away on the spacing carousel of fifth skew wall on the slider, guarantee that the condition of wrong brake or wrong brake of relieving the brake can not appear.

The utility model discloses in, the wheel is installed on the wheel seat, because the wheel can be along 360 degrees rotations of support body, is promptly equivalent to the universal wheel from the wheel, so among the locking mechanism, from last offset and the offset down of having set gradually the components of a whole that can function independently, go up the offset setting in the support body, the offset setting is in the wheel seat down, 360 degrees rotations of wheel can not be interfered in the assurance, and can order about the locking piece lock through last offset and offset down and go into the locked groove, realize the brake. If a support pin penetrates through the wheel seat from top to bottom, the support pin can be cut when the wheel rotates 360 degrees, so that movement interference is caused, and the 360-degree rotation of the wheel cannot be realized.

Drawings

FIG. 1 is a schematic structural view of the brake apparatus of the present invention;

FIG. 2 is an exploded view of FIG. 1 (with the other wheel omitted);

FIG. 3 is a cross-sectional view of the brake apparatus in an unlocked state;

FIG. 4 is a cross-sectional view of the braking device in a braking state;

FIG. 5 is a cross-sectional view of the brake apparatus during the releasing process;

FIG. 6 is a schematic view of the locking member locking into a locking groove on the wheel;

FIG. 7 is a schematic view of the locking member disengaged from the locking groove on the wheel;

FIG. 8 is a schematic view of the assembly of the pedals, drive block and frame;

FIG. 9 is a schematic view of the urging member urging the limiting turntable to abut against the first inclined wall of the limiting seat;

FIG. 10 is an exploded view of the limiting seat, the limiting turntable and the pushing member;

FIG. 11 is a schematic view of the limiting rotary disc and the limiting seat when the brake is released;

FIG. 12 is a schematic view of a limiting turntable and a limiting base during braking;

FIG. 13 is a schematic view of the spacing dial and the urging member when the brake is released;

FIG. 14 is a schematic view of a limiting rotary disc and a pushing member during braking;

fig. 15 is a schematic view of the limiting rotary disc and the pushing piece in the braking releasing process.

In the figure:

1. a frame; 10. a wheel; 101. locking the groove; 11. a limiting seat; 111. a chute; 112. a first sloped wall; 113. a limiting block; 113A, a second sloped wall; 12. a frame body; 13. a wheel seat;

2. a locking mechanism; 20. a locking member; 21. upper offsetting; 211. a sixth sloped wall; 22. carrying out lower offset; 23. tensioning the spring; 24. an unlocking spring;

3. a drive mechanism; 30. pedaling; 31. a push rod; 311. a seventh sloped wall; 32. a limiting turntable; 321. a first resisting block; 321A, a third sloped wall; 322. a second resisting block; 322A, a fourth sloped wall; 33. a pushing member; 331. a slider; 331A, a fifth inclined wall; 34. a drive block; 35. a first return spring; 36. a second return spring; 37. and a third return spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The brake device of the embodiment is mainly applied to various articles for daily use for children, and the embodiment is described in detail by using the brake device for a stroller.

As shown in fig. 1 to 5, a braking apparatus includes: the frame 1, the locking mechanism 2 and the driving mechanism 3.

The vehicle frame comprises a vehicle frame 1 with a wheel 10, wherein a first parking position and a second parking position are arranged on the vehicle frame 1, and a plurality of locking grooves 101 are formed in the wheel 10. Specifically, frame 1 is last to have spacing seat 11, and for convenient manufacturing, this spacing seat 11 is detachable, first berth position with the second berth position all sets up on spacing seat 11. According to the schematic direction of the drawing, the first parking position is located at the right side of the second parking position, and the two parking positions are respectively used for parking the limit turntable 32, so that the brake device can be switched between the braking state and the braking state. Have a brake gear on wheel 10, brake gear and wheel 10 linkage have a plurality of locked grooves 101 at brake gear's circumference equipartition to make things convenient for locking piece 20 can in time insert locked groove 101, with wheel 10 locking, brake equipment brake promptly.

The locking mechanism 2 is arranged on the frame 1 and comprises a locking piece 20, and the locking piece 20 is arranged on the frame 1 in a lifting motion manner so as to be locked into the locking groove 101 or unlocked from the locking groove 101; when the locking piece 20 is locked in the locking groove 101, the wheel 10 is locked, and the brake device is in a braking state; when the locking member 20 is unlocked from the locking groove 101, the wheel 10 is unlocked and can rotate freely. Specifically, the vehicle frame 1 includes a frame body 12 and a wheel seat 13, the wheel 10 is mounted on the wheel seat 13, and the wheel seat 13 can rotate 360 degrees relative to the frame body 12, that is, the wheel 10 can rotate 360 degrees relative to the frame body, which is equivalent to the wheel 10 being a universal wheel. The locking mechanism 2 further comprises an upper offset 21 and a lower offset 22, wherein the upper offset 21 is arranged in the frame body 12 and movably abutted against the push rod 31; the lower offset 22 is arranged in the wheel seat 13 and movably offsets with the upper offset 21; the abutting surfaces of the upper and lower offsets 21, 22 are flush with the interface between the wheel base 13 and the frame 12, and the upper and lower offsets 21, 22 do not interfere with the movement of the wheel base 13 when the wheel base 13 rotates 360 degrees relative to the frame, i.e. the upper and lower offsets 21, 22 are not subjected to shear forces. The push rod 31 can drive the locking member 20 to move up and down through the upper and lower offsets 21 and 22, the locking member 20 includes a brake sleeve (not labeled in the figure) and a lock pin, and the lock pin is tensioned on the brake sleeve through a tension spring 23.

As shown in fig. 6-7, a tension spring 23 is disposed at an end of the locking member 20 away from the locking slot 101; an unlocking spring 24 is arranged in the wheel seat 13, and when the limit dial 32 is switched from the second parking position to the first parking position, the unlocking spring 24 can drive the locking piece 20 to be disengaged from the locking groove 101. Specifically, one end of the tension spring 23 abuts against the lock pin, and the other end abuts against the brake sleeve, so that the locking member 20 is similar to a floating pin structure, when the locking member 20 is not aligned with the lock groove 101 on the wheel 10, the tension spring 23 in the locking member 20 can be compressed, and the situation that the locking member 20 rigidly presses the wheel 10 cannot occur, and after the wheel 10 rotates and the locking member 20 is aligned with the lock groove 101, under the action of the elastic force of the tension spring 23, the locking member 20 can be ensured to be locked in the lock groove 101 to lock the wheel 10, and the tension spring 23 can avoid rigid collision with the wheel 10, so that the service life of the brake device is ensured; but also ensures that the locking member 20 can be locked into the locking groove 101 in time. A convex block (not marked in the figure) is projected on the wheel seat 13, one end of the unlocking spring 24 is abutted on the convex block, the other end of the unlocking spring 24 is abutted on the brake sleeve of the locking piece 20, when the locking piece 20 is locked in the locking groove 101, the locking piece 20 moves downwards, so that the unlocking spring 24 is compressed; when the upper end of the striker 20 is not restrained, that is, when the release is performed, the elastic force of the release spring 24 moves the striker 20 upward, and the striker 20 is released from the lock groove 101.

The upper offset 21 is provided with a sixth inclined wall 211, the push rod 31 is provided with a seventh inclined wall 311, and the sixth inclined wall 211 can slide along the seventh inclined wall 311. In the actual working process, the seventh inclined wall 311 on the push rod 31 movably abuts against the sixth inclined wall 211 on the upper offset 21, and when the push rod 31 moves to the left, the seventh inclined wall 311 can press the sixth inclined wall 211, so that the upper offset 21 moves downwards, and the locking member 20 moves downwards; when the push rod 31 moves to the right until the seventh inclined wall 311 is gradually separated from the sixth inclined wall 211, the upper pin 21 moves upward, and the locking member 20 also moves upward.

In the actual use process, the wheel 10 of this embodiment is installed on the wheel seat 13, and since the wheel 10 can realize 360 degrees rotation along the frame body 12, that is, this wheel 10 is equivalent to a universal wheel, in the locking mechanism 2, an upper offset 21 and a lower offset 22 which are separated from each other are sequentially arranged from top to bottom, the upper offset 21 is arranged in the frame body 12, and the lower offset 22 is arranged in the wheel seat 13, so as to ensure that the 360 degrees rotation of the wheel 10 is not interfered, and the locking member 20 can be driven to be locked in the locking groove 101 through the upper offset 21 and the lower offset 22, thereby realizing braking. If a stop is provided to pass through the wheel base 13 from top to bottom, the stop will be sheared during 360 degrees of rotation of the wheel, causing motion interference and failing to achieve 360 degrees of rotation of the wheel 10.

As shown in fig. 2 to 5, the driving mechanism 3 is mounted on the frame 1, and includes a pedal 30, a push rod 31 and a limit dial 32, the limit dial 32 is movably disposed at the first stop position or the second stop position, and a downward step on the pedal 30 can drive the limit dial 32 to switch between the first stop position and the second stop position; the push rod 31 is movably abutted against the limit turntable 32, and the push rod 31 can drive the locking piece 20 to be locked into the locking groove 101; when the limit dial 32 is parked at the first parking position (shown in fig. 3), the locking piece 20 is disengaged from the locking groove 101; when the limit dial 32 is stopped at the second stop position (as shown in fig. 4), the locking member 20 is locked into the locking groove 101. The position of the limiting turntable 32 is shifted to the left from the position of fig. 3 to the position of fig. 4, and thus the position of the push rod 31 is shifted to the left, so that the push rod 31 drives the locking member 20 to lock downward into the locking groove 101, and therefore the first stop position is located at the right side of the second stop position.

As shown in fig. 9 to 15, the driving mechanism 3 includes a pushing part 33, the pushing part 33 is movably disposed on the limiting seat 11, and the pushing part 33 can push the limiting turntable 32, so that the limiting turntable 32 is switched between the first parking position and the second parking position. Specifically, the limiting turntable 32 is provided with a plurality of first abutting blocks 321 along the circumferential direction thereof, specifically, four first abutting blocks 321 are uniformly distributed; a plurality of sliding grooves 111 and a plurality of first inclined walls 112 close to the sliding grooves 111 are arranged on the inner wall of the limiting seat 11, and the number of the sliding grooves 111 and the number of the first inclined walls 112 are four and are uniformly distributed on the limiting seat 11; when the limiting turntable 32 stops at the second stop position, the first abutting block 321 abuts against the first inclined wall 112; when the limiting turntable 32 stops at the first stop position, the first abutting block 321 is located in the sliding groove 111. Moreover, the sliding groove 111 is adjacent to the first inclined wall 112, so that the first abutting block 321 can slide smoothly from the sliding groove 111 to the first inclined wall 112, the limiting block 113 protrudes from the first inclined wall 112, and the first abutting block 321 can slide along the first inclined wall 112 and abut against the limiting block 113, thereby realizing switching from the first parking position to the second parking position. And a second inclined wall 113A is arranged on the limiting block 113, and the first abutting block 321 can slide into the sliding groove 111 along the second inclined wall 113A, so that the limiting turntable 32 can be conveniently switched from the second stopping position to the first stopping position.

The limiting rotary disk 32 is further uniformly provided with four second abutting blocks 322 along the circumferential direction, the second abutting block 322 is arranged between two adjacent first abutting blocks 321, the first abutting block 321 is arranged between two adjacent second abutting blocks 322, the protrusion height of the first abutting block 321 is greater than the protrusion height of the second abutting block 322, the first abutting block 321 is provided with a third inclined wall 321A, the second abutting block 322 is provided with a fourth inclined wall 322A, the slide block 331 is provided with a fifth inclined wall 331A, the third inclined wall 321A can slide along the fifth inclined wall 331A, and the fourth inclined wall 322A can slide along the fifth inclined wall 331A. When the braking device is in a braking state, the first abutting block 321 abuts against the first inclined wall 112, and the second abutting block 322 is aligned with the sliding groove 111; when the brake device is in the brake release state, the first abutting block 321 is in the sliding groove 111. The pushing member 33 is provided with four sliding blocks 331 along the circumferential direction thereof, the sliding blocks 331 are slidably disposed in the sliding grooves 111, and when the first pushing block 321 is located in the sliding grooves 111, the first pushing block 321 pushes against the sliding blocks 331. When the pushing element 33 is pushed leftward, the limiting rotary disc 32 is directly pressed by the sliding block 331 to move leftward, and when the first abutting block 321 on the limiting rotary disc 32 is separated from the sliding groove 111, the fifth inclined wall 331A on the sliding block 331 is matched with the third inclined wall 321A on the first abutting block 321, so that the limiting rotary disc 32 rotates.

As shown in fig. 8, the driving mechanism 3 includes a driving block 34, and the pedals 30 are hinged on the frame 1 and movably abutted against the driving block 34; the driving block 34 is arranged on the frame 1 in a lifting manner and movably abutted against the abutting part 33, an inclined plane is arranged on the driving block 34, another inclined plane is arranged on the abutting part 33, and the two inclined planes are movably abutted against each other. The pedal 30 is provided with a first return spring 35 to ensure that the pedal 30 can be quickly returned; a second return spring 36 is arranged on the driving block 34 to ensure that the driving block 34 can be quickly reset; and a third return spring 37 is arranged on the push rod 31 to ensure that the push rod 31 can be quickly restored to the initial state.

The braking process (namely, the brake state is switched from the brake releasing state to the brake state) of the braking device is as follows: the pedal 30 is stepped down, and the pedal 30 presses the driving block 34; at the same time, the foothold 30 will compress the first return spring 35 downward, and the drive block 34 will compress the second return spring 36 downward. When the driving block 34 is pressed down, the inclined surface on the pushing member 33 is pressed by the inclined surface on the driving block 34, so that the pushing member 33 moves to the left. The pushing part 33 slides leftwards along the sliding groove 111, and then pushes the limiting turntable 32 leftwards; the limit dial 32 pushes the push rod 31 leftward, and at the same time, the third return spring 37 on the push rod 31 is compressed. The push rod 31 moves to the left, and the sixth inclined wall 211 on the upper offset 21 is pressed by the seventh inclined wall 311 on the push rod 31, so that the upper offset 21 moves downwards (when the top of the upper offset 21 abuts against the bottom of the push rod 31, the upper offset 21 does not move downwards any more). The upper offset 21 drives the lower offset 22 to move downwards; the lower stop 22 forces the locking member 20 to move down into the locking slot 101 while the unlocking spring 24 is compressed. When the pedal 30 is released, the pedal 30 is reset, the driving block 34 is reset, the limiting rotary disc 32 slides along the first inclined wall 112 on the limiting seat 11 under the action of the third reset spring 37 and the push rod 31, abuts against the limiting block 113 and does not move any more, namely, at the moment, the limiting rotary disc 32 stops at the second stop position, and the braking is completed.

The brake releasing process (namely, the brake state is switched to the brake releasing state) of the brake device is as follows: the pedal 30 is stepped down, and the pedal 30 presses the driving block 34 down; at the same time, the foothold 30 will compress the first return spring 35 downward, and the driving block 34 will compress the second return spring 36 downward. When the driving block 34 is pressed down, the inclined surface on the pushing member 33 is pressed by the inclined surface on the driving block 34, so that the pushing member 33 moves to the left. The pushing part 33 slides leftwards along the sliding groove 111, and further pushes the limiting rotary disc 32 leftwards, the limiting rotary disc 32 is separated from the first inclined wall 112 on the limiting seat 11, the limiting rotary disc 32 pushes the push rod 31 leftwards, and meanwhile, the third return spring 37 on the push rod 31 is compressed. The upper and lower offsets 21 and 22 and the locking member 20 are in the stationary state, and the locking member 20 is locked in the locking groove 101. When the pedal 30 is released, the pedal 30 is reset, the driving block 34 is reset, under the action of the push rod 31 and the third reset spring 37, the first abutting block 321 on the limiting rotary disc 32 slides into the sliding groove 111 on the limiting seat 11, and slides leftwards along the sliding groove 111, and the abutting piece 33 also slides leftwards until the limiting rotary disc 32 stops at the first stop position of the limiting seat 11, and then stops. The push rod 31 moves rightwards under the action of the third return spring 37, the sixth inclined wall 211 on the upper offset 21 abuts against the seventh inclined wall 311 on the push rod 31, and the upper offset 21, the lower offset 22 and the locking piece 20 move upwards under the action of the unlocking spring 24, so that the locking piece 20 is separated from the locking groove 101, and the brake is released.

In general, the brake apparatus of the present embodiment: the driving mechanism 3 is provided with a limit turntable 32, and the locking and unlocking of the locking member 20, namely the braking and the braking of the braking device, are realized through the stopping position of the limit turntable 32. When the limit turntable 32 stops at the first stop position, the brake device is in a brake release state; when the limit turntable 32 is stopped at the second stopping position, the brake device is in a braking state. And no matter the spacing carousel 32 switches to the second parking position from first parking position, still switches to first parking position from the second parking position, all can step on pedal 30 through the foot and realize, and need not collude pedal 30 on with the foot when opening the brake, can prevent that the vamp from being scraped the flower or being made dirty. The pedal 30 is stepped on downwards at every time, the limit rotary disc 32 can only rotate along one direction (for example, the clockwise direction), the brake device is switched between the two states of braking and releasing, four first abutting blocks 321 and four second abutting blocks 322 are uniformly distributed along the circumferential direction of the limit rotary disc 32, so that the limit rotary disc 32 can be switched between the two states of braking and releasing once only by rotating about 45 degrees at every time, and in the process of switching at every time, the third inclined wall 321A or the fourth inclined wall 322A on the limit rotary disc 32 is pushed through the fifth inclined wall 331A on the sliding block 331, and the situation that the mistaken braking or the mistaken releasing is avoided is ensured.

In the scheme, the pedal 30 can be used for braking and braking release, so that the vamp can be effectively prevented from being scratched or dirtied; and the brake apparatus can be applied to a 360-degree rotatable wheel 10.

Claims (10)

1. A brake apparatus, comprising:

the parking device comprises a frame with wheels, wherein the frame is provided with a first parking position and a second parking position, and the wheels are provided with a plurality of locking grooves;

the locking mechanism is arranged on the frame and comprises a locking piece, and the locking piece is arranged on the frame in a lifting motion manner so as to be locked in the locking groove or unlocked from the locking groove;

the driving mechanism is arranged on the frame and comprises a pedal, a push rod and a limiting rotary disc, the limiting rotary disc is movably arranged at the first parking position or the second parking position, and the limiting rotary disc can be driven to be switched between the first parking position and the second parking position by stepping down the pedal; the push rod is movably abutted against the limiting turntable and can drive the locking piece to be locked into the locking groove;

when the limiting turntable stops at the first stop position, the locking piece is separated from the locking groove; when the limiting turntable stops at the second stopping position, the locking piece is locked into the locking groove.

2. The brake apparatus of claim 1, wherein the frame has a stop seat thereon, and the first parking position and the second parking position are both disposed on the stop seat;

the driving mechanism comprises an abutting part which is movably arranged on the limiting seat, and the abutting part can abut against and push the limiting turntable so as to enable the limiting turntable to be switched between the first stopping position and the second stopping position.

3. The brake device according to claim 2, wherein the limiting turntable is provided with a plurality of first abutting blocks along the circumferential direction; the inner wall of the limiting seat is provided with a plurality of sliding grooves and a plurality of first inclined walls close to the sliding grooves;

when the limiting rotary disc stops at the second stop position, the first abutting block abuts against the first inclined wall; when the limiting turntable stops at the first stopping position, the first abutting block is located in the sliding groove.

4. The brake device according to claim 3, wherein the sliding groove is adjacent to the first inclined wall, a limiting block is protruded on the first inclined wall, and the first abutting block can slide along the first inclined wall and abut against the limiting block.

5. The brake device according to claim 4, wherein a second inclined wall is provided on the limiting block, and the first abutting block can slide into the sliding groove along the second inclined wall.

6. The brake device according to claim 4, wherein the abutting member is provided with a plurality of sliding blocks along a circumferential direction thereof, the sliding blocks are slidably disposed in the sliding grooves, and when the first abutting block is located in the sliding grooves, the first abutting block abuts against the sliding blocks.

7. The brake device according to claim 6, wherein four first abutting blocks are uniformly distributed on the limiting rotary disc along the circumferential direction, four second abutting blocks are uniformly distributed on the limiting rotary disc along the circumferential direction, one second abutting block is arranged between two adjacent first abutting blocks, one first abutting block is arranged between two adjacent second abutting blocks, the protruding height of each first abutting block is greater than that of each second abutting block, and the number of the sliding grooves is four;

the first supporting block is provided with a third inclined wall, the second supporting block is provided with a fourth inclined wall, the sliding block is provided with a fifth inclined wall, the third inclined wall can slide along the fifth inclined wall, and the fourth inclined wall can slide along the fifth inclined wall.

8. The brake apparatus of claim 1, wherein the frame includes a frame body and a wheel mount, the wheel being mounted on the wheel mount and the wheel mount being rotatable 360 degrees relative to the frame body;

the locking mechanism further comprises an upper offset and a lower offset, and the upper offset is arranged in the frame body and movably abutted against the push rod; the lower offset is arranged in the wheel seat and movably abutted against the upper offset; the push rod can drive the locking piece to move up and down through the upper offsetting pin and the lower offsetting pin.

9. The brake apparatus as claimed in claim 8, wherein a sixth inclined wall is provided on the upper pin, a seventh inclined wall is provided on the push rod, and the sixth inclined wall can slide along the seventh inclined wall;

one end of the locking piece, which is far away from the locking groove, is provided with a tensioning spring; an unlocking spring is arranged in the wheel seat, and when the limiting rotary disc is switched from the second parking position to the first parking position, the unlocking spring can drive the locking piece to be separated from the locking groove.

10. The brake device according to any one of claims 2-7, wherein the driving mechanism comprises a driving block, and the pedal is hinged on the frame and movably abutted against the driving block; the driving block is arranged on the frame in a lifting manner and movably abutted against the abutting piece;

the pedal is provided with a first reset spring, the driving block is provided with a second reset spring, and the push rod is provided with a third reset spring.

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