CN218172373U

CN218172373U - Brake device for rear wheel of baby carriage

Info

Publication number: CN218172373U
Application number: CN202222061866.6U
Authority: CN
Inventors: 郑晓飞
Original assignee: Kunshan Beikaisi Children's Products Co ltd
Current assignee: Kunshan Beikaisi Children's Products Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-12-30
Anticipated expiration: 2032-08-05

Abstract

A brake device for the rear wheel of a baby carriage is arranged corresponding to a pair of rear wheels of the baby carriage; the method is characterized in that: the brake device comprises two brake components; the first brake component comprises a brake pedal and a brake piece which are assembled in a transmission way; the brake device also comprises a first brake limiting rod and a first elastic piece, wherein the first brake limiting rod is clamped in a chute on the brake piece under the action of the first elastic piece, is separated from the chute and extends into a brake hole of the first rear wheel under the action of the brake piece in transmission connection with the first brake limiting rod, and corresponds to a non-braking state and a braking state in sequence; the brake pedal returns to an initial state under the action of the second elastic piece. The brake device of present case is when needs brake, steps on brake pedal, loosens brake pedal and its can automatic re-setting, only need trample brake pedal once more when need release, has avoided lifting up the footboard with the instep when having released to brake among the prior art, and the phenomenon of cloth cover is still made dirty hard easily.

Description

Brake device for rear wheel of baby carriage

Technical Field

The utility model relates to a brake equipment, concretely relates to brake equipment for perambulator rear wheel.

Background

A stroller generally includes a frame, front wheels, rear wheels, and wheel mounts connecting the front and rear wheels to the frame; also comprises a brake device which is convenient for the baby carriage to stop or walk.

The existing brake device is generally arranged corresponding to a rear wheel and comprises a pedal and a limiting pin arranged inside and outside, wherein a plurality of brake holes for the limiting pin to penetrate through are formed in the rear wheel along the inside and outside directions; when the brake is released, the pedal needs to be acted on the instep upwards to return to the original position, and then the limiting pin is driven to move inwards and break away from the brake hole on the rear wheel, so that the brake on the rear wheel is released, and the brake is found in long-term use:

1. when the brake is released, the pedal is lifted upwards by the instep, the operation direction is not a labor-saving direction, so that the operation is time-consuming and labor-consuming, and the experience of a user is influenced.

2. When the baby carriage is braked, the foot backs are used for lifting the pedals upwards, so that the cloth cover of the baby carriage is easily polluted.

Therefore, the present invention is to solve the above-mentioned deficiencies of the prior art and to provide a solution to the problems.

Disclosure of Invention

The utility model aims at providing a brake equipment for perambulator rear wheel.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a brake device for the rear wheel of a baby carriage is arranged corresponding to a pair of rear wheels of the baby carriage; the method is characterized in that: the brake device comprises two brake components;

the first brake assembly comprises a brake pedal and a brake piece which are assembled in a transmission manner; the brake device comprises a brake component, a first rear wheel, a second rear wheel, a first brake limiting rod and a first elastic piece, wherein the brake component is arranged on the brake component and is connected with the brake component in a transmission manner;

the brake pedal is acted by the second elastic piece to return to an initial state.

The second brake assembly comprises a second brake limiting rod, a brake cable and a guide wheel, the brake cable bypasses the guide wheel and is in transmission connection with the first brake limiting rod and the second brake limiting rod respectively, and when braking is carried out, the brake cable is pulled by the brake force on the first brake limiting rod and is transmitted to the second brake limiting rod, so that the second brake limiting rod is inserted into a brake hole of the second rear wheel; the brake device further comprises a third elastic piece, and when the brake device is not used for braking, the second brake limiting rod is separated from the brake hole in the second rear wheel under the action of the third elastic piece.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, the first direction is counterclockwise, and the second direction is clockwise.

2. According to the further technical scheme, the braking piece comprises a first circumferential surface, a second circumferential surface and a third circumferential surface which are sequentially arranged from inside to outside; a plurality of tooth-shaped structures are arranged on the first peripheral surface and the third peripheral surface at intervals along the circumferential direction; and a plurality of inclined grooves are formed in the second circumferential surface at equal intervals along the circumferential direction.

3. According to a further technical scheme, the first brake assembly further comprises a first elastic limiting piece used for driving the braking piece to rotate along a first direction, the first elastic limiting piece is assembled between the brake pedal and the braking piece and provided with a force application end, and the force application end extends into the tooth-shaped structures on the first peripheral surface.

4. In a further technical solution, the first brake assembly further includes a second elastic limiting member for preventing the brake member from rotating in the second direction, the second elastic limiting member is assembled in the first rear wheel seat and has a limiting end, the limiting end extends into the tooth-shaped structures on the third circumferential surface, and the second elastic limiting member is an elastic piece.

5. According to a further technical scheme, the second brake component further comprises a pressing block, and a pressure part for limiting the movement of the guide wheel axle is convexly arranged on the pressing block.

6. According to a further technical scheme, the first brake limiting rod and the second brake limiting rod respectively comprise a sleeve and a rod-shaped pin which is sleeved in the sleeve in a sliding manner, wherein the inner end of the rod-shaped pin is limited in the sleeve; each also comprises a fourth elastic element acting between the sleeve and the rod-shaped pin to maintain the rod-shaped pin in a tendency to move towards the braking hole of the corresponding rear wheel.

7. According to a further technical scheme, the first elastic limiting part comprises a limiting block and a fifth elastic part, and the limiting block is arranged corresponding to the first periphery of the braking part; the fifth elastic element acts between the limiting block and the brake pedal, so that the limiting block keeps a trend of being inserted into the first peripheral tooth-shaped structure; the first elastic limiting piece is designed mainly by considering that the first elastic limiting piece is used as a driving piece to drive the braking piece to rotate, so that the strength of the first elastic limiting piece is required to be better; besides, the first elastic limiting part and the second elastic limiting part can be the same and are elastic sheets.

8. According to the further technical scheme, the braking part and the first rear wheel rotate coaxially, so that the assembly of the frame and the braking device is more compact while the braking performance is guaranteed.

9. In the above scheme, the "first elastic member, the third elastic member, the fourth elastic member and the fifth elastic member" are all springs, and the "second elastic member" is a torsion spring.

Compared with the prior art, the scheme has the following advantages:

when the brake is needed, the brake pedal is stepped down, the brake pedal is loosened, the automatic reset can be realized, and the brake pedal is only needed to be stepped again when the brake is needed to be released, so that the phenomenon that the pedal is lifted up by the instep when the brake is released in the prior art, which is hard and easy to dirty the cloth cover is avoided.

Drawings

FIG. 1 is a perspective view of a stroller in accordance with an embodiment of the present invention;

fig. 2 is a right side view of the stroller of the embodiment of the present invention;

FIG. 3 is an exploded view of a first brake assembly in accordance with an embodiment of the present invention;

fig. 4 is an exploded view of a second brake assembly according to an embodiment of the present invention.

In the drawings above: 1. a first rear wheel seat; 2. a first rear wheel; 3. a second rear wheel seat; 4. a second rear wheel seat; 5. a first brake assembly; 6. a second brake assembly; 7. a stopper; 8. a brake pedal; 9. mounting a disc; 10. a stepping part; 11. an assembly hole; 12. a first peripheral surface; 13. a second peripheral surface; 14. a third peripheral surface; 15. a chute; 16. a first brake limiting rod; 17. a first through hole; 18. a first braking hole; 19. a first elastic member; 20. a first elastic limiting piece; 21. a second elastic limiting part; 22. an end cap; 23. a second elastic member; 24. a second brake limit rod; 25. a second through hole; 26. a second brake aperture; 27. a brake cable; 28. a guide wheel; 29. a third elastic member; 30. briquetting; 32. a sleeve; 33. a rod-shaped pin; 34. a fourth elastic member; 35. a groove; 36. a limiting block; 37. and a fifth elastic member.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the embodiment is as follows: the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," and the like, as used herein, are not intended to be limited to a particular order or sequence, nor are they intended to be used to limit the scope of the present disclosure, but only to distinguish components or operations described by the same terms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "having," and the like, are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "front" and "rear" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the specific directions in practical implementation.

Referring to fig. 1 to 4, a brake apparatus for rear wheels of a stroller including a first rear wheel seat 1, a first rear wheel 2, a second rear wheel seat 3, and a second rear wheel 4, the first rear wheel 2 being rotatably mounted to an outer side of the first rear wheel seat 1, and the second rear wheel 4 being rotatably mounted to an outer side of the second rear wheel seat 3, and a brake apparatus for braking the rear wheels.

Brake equipment includes first brake subassembly 5 and second brake subassembly 6, first brake subassembly 5 assembles in the inboard of first rear wheel seat 1, second brake subassembly 6 assembles in the inboard of second rear wheel seat 3.

The first brake component 5 comprises a brake member 7 and a brake pedal 8, the brake pedal 8 is rotatably assembled on the inner end face of the first rear wheel seat 1, and the brake member 7 and the first rear wheel 1 rotate coaxially.

The brake pedal 8 comprises a mounting plate 9 and a treading part 10 which are fixedly assembled; an assembling hole 11 is formed in the mounting disc 9 along the inner and outer directions; a groove 35 is formed in the first rear wheel seat 1, the pedaling part 10 is exposed to the rear side of the first rear wheel seat 1 through the groove 35, and the upper and lower groove surfaces of the groove 35 respectively face the movement limit position of the pedaling part 10.

The braking part 7 comprises a first peripheral surface 12, a second peripheral surface 13 and a third peripheral surface 14 which are arranged from inside to outside in sequence, and the first peripheral surface 12 is arranged in the assembly hole 11 at intervals; a plurality of tooth-shaped structures are arranged on the first peripheral surface 12 and the third peripheral surface 14 at equal intervals along the circumferential direction; the second circumferential surface 13 is provided with a plurality of inclined slots 15 at equal intervals along the circumferential direction.

The first brake component 5 further comprises a first brake limiting rod 16, and the third peripheral surface 14 gives way to the first brake limiting rod 16; the first brake limiting rod 16 has a length, and the first brake limiting rod 16 is arranged in a length direction corresponding to the inner and outer directions; a first through hole 17 is formed in the first rear wheel seat 1 along the inner and outer directions and used for a first brake limiting rod 16 to penetrate through; a plurality of first braking holes 18 are formed in the hub of the first rear wheel 2 at equal intervals along the circumferential direction, and at any time, one first braking hole 18 is in alignment fit with the first through hole 17.

In a non-braking state, the inner end of the first brake limiting rod 16 is inserted into any inclined groove 15 on the second peripheral surface 13, the outer end of the first brake limiting rod is separated from the first brake hole 18, and at the moment, the first rear wheel 2 is in a normal rotation state; in a braking state, the outer end of the first brake limiting rod 16 is inserted into any one first braking hole 18 on the hub of the first rear wheel 2, the inner end of the first brake limiting rod is separated from the inclined groove 15, and the first rear wheel 2 is braked at the moment.

The first brake assembly 5 further comprises a first elastic member 19, wherein the first elastic member 19 acts between the first brake limiting rod 16 and the first rear wheel seat 1, so that the inner end of the first brake limiting rod 16 keeps the movement tendency of inserting into the inclined groove 15 on the second circumferential surface 13.

The first brake assembly 5 further includes a first elastic limiting member 20 and a second elastic limiting member 21, wherein the first elastic limiting member 20 is assembled between the brake pedal 8 and the brake member 7, and the first elastic limiting member 20 has a force application end extending into the tooth-shaped structure of the first circumferential surface 12; when braking, the brake pedal 8 moves downwards to drive the force application end to drive the braking part 7 to rotate anticlockwise.

The second elastic limiting member 21 is assembled in the first rear wheel seat 1, and the second elastic limiting member 21 has a limiting end extending into the tooth-shaped structure of the third circumferential surface 14 to prevent the braking member 7 from rotating clockwise.

The first brake component 5 further comprises a second elastic member 23 and an end cap 22, the end cap 22 is assembled on the inner end surface of the first rear wheel seat 1 and encloses the first brake component 5 in the first rear wheel seat 1, wherein the second elastic member 23 acts between the brake pedal 8 and the end cap 22 to keep the brake pedal 8 in a tendency of returning to a non-braking state.

The second brake assembly 6 comprises a second brake limiting rod 24, the second brake limiting rod 24 has a length, and the second brake limiting rod 24 is arranged in a way that the length direction corresponds to the inner and outer directions; the second brake limiting rod 24 is driven to do linear reciprocating displacement in the inner and outer directions; a second through hole 25 is formed in the second rear wheel seat 3 along the inner and outer directions, and is used for the second brake limiting rod 24 to penetrate through, a plurality of second brake holes 26 are formed in the hub of the second rear wheel 4 at intervals along the circumferential direction, and at any time, the second brake holes 26 are in alignment fit with the second through hole 25.

In a braking state, the outer end of the second brake limiting rod 24 is inserted into any second brake hole 26 on the hub of the second rear wheel 4, and the second rear wheel 4 is braked at the moment; in the non-braking state, the outer end of the second brake limiting rod 24 is separated from the second brake hole 26, and the second rear wheel 4 is in a normal rotation state.

Second brake subassembly 6 still includes leading wheel 28, brake cable 27 walks around leading wheel 28 and is connected with first brake gag lever post 16 and the transmission of second brake gag lever post 24 respectively, constitutes when the braking, and braking force traction brake cable and transmission to second brake gag lever post 24 on the first brake gag lever post 16 make second brake gag lever post 24 insert in second braking hole (26), realize two rear wheel synchronous braking.

The second brake assembly 6 further comprises a third elastic member 29 acting between the second brake limiting rod 24 and the second rear wheel seat 3 to keep the inner end of the second brake limiting rod 24 in a tendency to disengage from the second brake hole 26.

The second brake component 6 further comprises a pressing block 30, the pressing block 30 is fixedly connected with the second rear wheel seat 3, and the pressing block 30 is convexly provided with a pressure part for limiting the movement of the wheel shaft of the guide wheel 28.

The first brake limiting rod 16 and the second brake limiting rod 24 each include a sleeve 32 and a rod-shaped pin 33 slidably sleeved in the sleeve 32, wherein the inner end of the rod-shaped pin 33 is limited in the sleeve 32, and each further includes a fourth elastic member 34, the fourth elastic member 34 acts between the sleeve 32 and the rod-shaped pin 33, that is, the fourth elastic member 34 in the first brake limiting rod 16 keeps a tendency of the rod-shaped pin 33 on the first brake limiting rod 16 moving toward the first brake hole 18, and the fourth elastic member 34 in the second brake limiting rod 24 keeps a tendency of the rod-shaped pin 33 on the second brake limiting rod 24 moving toward the second brake hole 26.

The first elastic limiting member 20 comprises a limiting block 36 and a fifth elastic member 37, wherein the limiting block 36 is arranged corresponding to the first peripheral surface 12 of the braking member 7; the fifth resilient member 37 acts between the abutment 36 and the brake pedal 8 to maintain the abutment 36 in its tendency to be inserted between the teeth of the first peripheral surface 12.

Constitute through above-mentioned structure, now to the utility model discloses a structural principle explains as follows:

when braking is needed, the stepping part 10 of the brake pedal 8 is stepped down, so that the force application end of the first elastic limiting part 20 acts on the toothed structure of the first peripheral surface 12, the braking part 7 rotates in the counterclockwise direction, the first brake limiting rod 16 which is originally inserted into the inclined groove 15 on the second peripheral surface 13 is slowly separated from the inclined groove 15 and moves towards the first brake hole 18 due to the rotation of the braking part 7, and the second brake limiting rod 24 simultaneously moves towards the second brake hole 26 through the brake cable 27 and the steering wheel 28 in the displacement process of the first brake limiting rod 16, so that the effect of simultaneously braking the first rear wheel 2 and the second rear wheel 4 is finally achieved; after braking is finished, the brake pedal 8 returns to the initial state under the action of the second elastic element 23.

When the brake needs to be released, the stepping part 10 of the brake pedal 8 is stepped again, so that the force application end of the first elastic limiting part 20 acts on the tooth-shaped structure of the first peripheral surface 12, the brake part 7 further rotates along the counterclockwise direction, the first brake limiting rod 16 is driven by the first elastic part 19, the first brake limiting rod 16 displaces towards the brake part 7, the inner end of the first brake limiting rod is inserted into the inclined groove 15 on any one second peripheral surface 13, the outer end of the first brake limiting rod is separated from the first brake hole 18, and the first rear wheel 2 is released from the brake and can normally rotate; the second brake limiting rod 24 is driven by the third elastic element 29, so that the outer end thereof is separated from the second brake hole 26, and at this time, the second rear wheel 4 is released from braking and can normally rotate, and the brake release is finished.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a brake equipment for perambulator rear wheel, corresponds a pair of rear wheel setting of perambulator which characterized in that: the brake device comprises two brake components;

the first brake component (5) comprises a brake pedal (8) and a brake piece (7), and the brake pedal (8) and the brake piece (7) are assembled in a transmission manner; the brake device is characterized by further comprising a first brake limiting rod (16) and a first elastic piece (19), wherein the first brake limiting rod (16) is clamped in a chute (15) on the brake piece (7) under the action of the first elastic piece (19), is separated from the chute (15) under the action of the brake piece (7) in transmission connection with the first brake limiting rod and extends into a brake hole of the first rear wheel (2), and corresponds to a non-brake state and a brake state in sequence;

the brake pedal (8) returns to an initial state under the action of the second elastic piece (23);

the second brake component (6) comprises a second brake limiting rod (24), a brake cable (27) and a guide wheel (28), wherein the brake cable (27) bypasses the guide wheel (28) and is respectively in transmission connection with the first brake limiting rod (16) and the second brake limiting rod (24), so that when braking is carried out, the brake force on the first brake limiting rod (16) pulls the brake cable (27) and transmits the brake cable to the second brake limiting rod (24), and the second brake limiting rod (24) is inserted into a brake hole of the second rear wheel; the brake device also comprises a third elastic piece (29), and when the brake device is not braked, the second brake limiting rod (24) is separated from a brake hole on the second rear wheel under the action of the third elastic piece (29).

2. A brake device for a rear wheel of a stroller according to claim 1, wherein: the braking piece (7) comprises a first peripheral surface (12), a second peripheral surface (13) and a third peripheral surface (14) which are arranged from inside to outside in sequence; a plurality of tooth-shaped structures are arranged on the first peripheral surface (12) and the third peripheral surface (14) at equal intervals along the circumferential direction; the second peripheral surface (13) is provided with a plurality of inclined grooves (15) at equal intervals along the circumferential direction.

3. A brake device for a rear wheel of a stroller according to claim 2, wherein: the first brake assembly (5) further comprises a first elastic limiting piece (20) used for driving the brake piece (7) to rotate along a first direction, the first elastic limiting piece (20) is assembled between the brake pedal (8) and the brake piece (7) and is provided with a force application end, and the force application end extends into the tooth-shaped structures of the first peripheral surface (12).

4. A brake device for a rear wheel of a stroller according to claim 2, wherein: the first brake component (5) further comprises a second elastic limiting part (21) for preventing the brake part (7) from rotating along the second direction, the second elastic limiting part (21) is assembled in the first rear wheel seat (1) and is provided with a limiting end, and the limiting end extends into the tooth-shaped structures of the third circumferential surface (14).

5. A brake device for a rear wheel of a stroller according to claim 1, wherein: the second brake component (6) further comprises a pressing block (30), and a pressure part for limiting the movement of the wheel shaft of the guide wheel (28) is convexly arranged on the pressing block (30).

6. A brake device for a rear wheel of a stroller according to claim 1, wherein: the first brake limiting rod (16) and the second brake limiting rod (24) both comprise a sleeve (32) and a rod-shaped pin (33) which is sleeved in the sleeve (32) in a sliding manner, wherein the inner end of the rod-shaped pin (33) is limited in the sleeve (32);

and a fourth elastic element (34), the fourth elastic element (34) acting between the sleeve (32) and the rod-shaped pin (33) to maintain the rod-shaped pin (33) with a tendency to move towards the braking hole of the corresponding rear wheel.

7. A brake device for a rear wheel of a stroller according to claim 3, wherein: the first elastic limiting part (20) comprises a limiting block (36) and a fifth elastic part (37), and the limiting block (36) is arranged corresponding to the first peripheral surface (12) of the braking part (7); the fifth elastic element (37) acts between the limiting block (36) and the brake pedal (8) to keep the limiting block (36) in a tendency of being inserted between the tooth-shaped structures of the first peripheral surface (12).

8. A brake device for a rear wheel of a stroller according to claim 1, wherein: the brake member (7) and the first rear wheel (2) rotate coaxially.