CN218577826U

CN218577826U - Brake device for rear wheel of baby carriage

Info

Publication number: CN218577826U
Application number: CN202222195739.5U
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: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-03-07
Anticipated expiration: 2032-08-19

Abstract

A brake device for a rear wheel of a baby carriage comprises a transverse pipe butted with a two-wheel seat, a braking piece rotationally sleeved on the transverse pipe, a pedal driving the braking piece to rotate, and a transmission block which is assembled with the braking piece in a transmission way and is arranged in the transverse pipe; the transmission blocks are provided with a pair and are respectively arranged on two sides of the braking part; the brake assembly comprises a brake rod, a traction wire, a first elastic piece and a second elastic piece; one end of the first traction wire is connected with the first brake lever in a positioning way, and the other end of the first traction wire is connected with one of the two transmission blocks in a positioning way; one end of the second traction wire is connected with the second brake lever in a positioning way, and the other end of the second traction wire is connected with the other one of the two transmission blocks in a positioning way; the parts in the brake device avoid the high requirement that the parts need coaxial assembly in the prior art, and the brake device has the advantages of simple assembly process, low precision requirement and high stability.

Description

Brake device for rear wheel of baby carriage

Technical Field

The utility model relates to a perambulator 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.

In a brake device in a rear wheel brake mechanism (CN 206317876U) of a baby stroller in the prior art, a brake rotating part is driven to rotate by a pedal so as to finally drive a gear part to extend into a brake hole on a rear wheel to brake the rear wheel, a plurality of parts which are complex in matching are arranged between the brake rotating part and the gear part, and coaxial assembly is realized among the parts, so that the assembly process is complex, the assembly requirement precision is higher, the stability is poor, and if any one part generates assembly errors in the assembly process, the brake can be blocked or out of order; if any part is worn or damaged in long-term use, the brake can be blocked or out of work, which poses a great threat to the personal safety of the baby. In addition, the horizontal pipe in this kind of brake equipment is because to counterpoint with the brake eye is coaxial, and this ground clearance that just leads to the horizontal pipe is less, when meetting ground and having outstanding barrier, will influence the normal current of perambulator, brings not good use experience for the user.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

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 wheels of a baby carriage comprises a pair of rear wheels and a pair of wheel seats, wherein a plurality of brake holes are formed in the wheel hub of each rear wheel at equal intervals along the circumferential direction;

the brake device comprises a transverse pipe butted with the two wheel seats, a braking piece rotationally sleeved on the transverse pipe, a pedal driving the braking piece to rotate, and a transmission block which is assembled with the braking piece in a transmission way and is arranged in the transverse pipe; the pair of transmission blocks is arranged on two sides of the braking part respectively;

the brake assembly comprises a brake rod, a traction wire, a first elastic piece and a second elastic piece;

one end of the first traction wire is connected with the first brake lever in a positioning way, and the other end of the first traction wire is connected with one of the two transmission blocks in a positioning way; one end of the second traction wire is connected with the second brake lever in a positioning way, and the other end of the second traction wire is connected with the other one of the two transmission blocks in a positioning way;

when the braking piece rotates along the first direction, the two transmission blocks are pushed to move outwards to be far away from the braking piece;

when the braking part rotates along a second direction, the two transmission blocks are inwardly displaced towards the braking part under the action of the first elastic piece;

the brake rod extends into the brake hole on the hub of the rear wheel under the action of the second elastic piece, is separated from the brake hole on the hub of the rear wheel under the action of the traction wire and sequentially corresponds to the brake state and the non-brake state of the rear wheel.

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

1. in the above scheme, the directions of the "first direction" and the "second direction" are opposite, and when the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise.

2. According to a further technical scheme, a pair of first chutes are formed in the braking part, and the two first chutes are respectively arranged on two outer sides of the braking part; the transverse pipe is provided with a pair of strip-shaped holes which are respectively arranged at two sides of the braking part and correspond to the first chute; a limiting rod is arranged on the transmission block in a penetrating and positioning mode and extends out of the strip-shaped hole; when the braking piece rotates, the limiting rod is driven to reciprocate along the strip-shaped hole, and then the first chute is clamped in or separated from the first chute.

3. According to a further technical scheme, the brake device further comprises a first sleeve and a second sleeve which are sleeved on the outer side of the transverse pipe, one end of each of the first sleeve and the second sleeve is rotatably connected with two ends of the corresponding pedal, and the other end of each of the first sleeve and the second sleeve is correspondingly connected with the two wheel seats; at least one sleeve is provided with two second inclined grooves, and the two second inclined grooves respectively correspond to two limiting positions of the pedal in rotation; the pedal further comprises an elastic limiting part connected to the pedal, the elastic limiting part is provided with a limiting end, and when the pedal rotates to the limiting position, the limiting end extends into one of the two second inclined grooves.

4. According to the further technical scheme, each brake component further comprises a fixed block fixedly arranged in the transverse pipe, and the fixed block is positioned on the outer side of the transmission block; one end of the first elastic piece is connected with the fixed block in a positioning mode, and the other end of the first elastic piece is matched with the transmission block in an abutting mode.

5. According to a further technical scheme, each brake component further comprises an end cover assembled on the inner side of each wheel seat; one end of the second elastic piece is connected with the end cover in a positioning mode, and the other end of the second elastic piece is connected with the brake lever in a positioning mode.

6. According to a further technical scheme, the elastic limiting part comprises a limiting rod with a limiting end and a third elastic part, and the third elastic part acts between the limiting block and the pedal to enable the limiting end of the limiting block to keep facing the movement trend of the second chute on the sleeve.

7. In the above scheme, the "first elastic element", the "second elastic element" and the "third elastic element" are all springs, and the "elastic limiting element" may also be an elastic sheet.

Contrast prior art, the utility model has the advantages as follows:

1. the high requirement that coaxial assembly is needed among all parts in the prior art has been avoided to each part in the present case brake equipment, and assembly process is simple, and the required precision is low, and stability is high.

2. Violently manage and brake aperture non-coaxial requirement in the present case, violently manage like this and just can increase terrain clearance, increase the rate of passing through of automobile body, avoid the outstanding barrier in ground to exert an influence to the normal current production of perambulator, promoted user experience.

Drawings

FIG. 1 is a perspective view of the brake device and the rear wheel according to the embodiment of the present invention;

FIG. 2 is a partial exploded view of FIG. 1;

fig. 3 is an exploded view of the pedal and sleeve shown hidden in fig. 1.

In the drawings above: 1. a rear wheel; 2. a wheel seat; 3. a brake hole; 4. a transverse tube; 5. a stopper; 6. a pedal; 7a, a first transmission block; 7b, a second transmission block; 8. a brake lever; 9a. A first traction wire; 9b, a first traction wire; 10. a first elastic member; 11. a second elastic member; 12. a first chute; 13. a first sleeve; 14. a second sleeve; 15. an elastic limiting part; 16. a second chute: 17. a strip-shaped hole; 18. a limiting rod; 19. a fixed block; 20. an end cap; 21. a limiting block; 22. and a third elastic member.

Detailed Description

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

example (b): 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, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical 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," "including," "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 words 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", "rear", "upper", "lower", "left" and "right" used herein are directional terms, and are used only for explaining the positional relationship among the structures, and are not intended to limit the protection scheme and the specific direction in actual implementation.

Referring to fig. 1 to 3, a brake apparatus for a rear wheel of a stroller including a pair of rear wheels 1 and a pair of wheel seats 2, wherein a plurality of brake holes 3 are formed in a hub of each rear wheel 1 at equal intervals in a circumferential direction.

The brake device comprises a transverse pipe 4 butted with the two wheel seats 2, a brake part 5 rotationally sleeved on the transverse pipe 4, a pedal 6 driving the brake part 5 to rotate, and a transmission block which is assembled with the brake part 5 in a transmission way and is arranged in the transverse pipe 4; wherein, the transmission block is provided with a pair of, locates the both sides of arresting member 5 respectively.

The brake device further comprises a pair of brake components which are respectively arranged on two sides of the brake part 5, and each brake component comprises a brake rod 8, a traction wire, a first elastic part 10 and a second elastic part 11; one end of a first traction wire 9a is connected with the first brake lever 8 in a positioning way, and the other end of the first traction wire is connected with one of the two transmission blocks in a positioning way; one end of a second traction wire 9b is connected with the second brake lever 8 in a positioning way, and the other end of the second traction wire is connected with the other one of the two transmission blocks in a positioning way; when the first traction wire 9a is connected with the first transmission block 7a in a positioning way and the second traction wire 9b is connected with the second transmission block 7b in a positioning way, when the two transmission blocks move outwards (away from the braking part 5), all the traction wires are in a loose state; when the two driving blocks are displaced inwards (towards the braking member 5), the traction wires are in a tensioned state (see fig. 3). When the first traction wire 9a is connected with the second transmission block 7b in a positioning way, and the second traction wire 9b is connected with the first transmission block 7a in a positioning way, when the two transmission blocks displace towards the inner side (towards the braking part 5), all traction wires are in a loose state; when the two driving blocks are displaced outwards (away from the braking member 5), the traction wires are under tension (in this case not shown).

When the pedal is pedaled anticlockwise and downwards, the braking part 5 is driven to rotate along a first direction, namely anticlockwise, and then the two transmission blocks are pushed to move outwards to be far away from the braking part 5 under the action of the first elastic part 10. When the pedal is lifted back and reset clockwise, the braking part 5 is driven to rotate along a second direction, namely clockwise, and then the two transmission blocks are inwardly displaced towards the braking part 5 under the action of the first elastic part 10.

When the traction line is in a loose state, the brake rod 8 extends into the brake hole 3 on the hub of the rear wheel 1 under the action of the second elastic piece 11 to achieve the braking of the rear wheel; when the traction wire is in a tensioning state, the pulling force of the traction wire overcomes the action of the second elastic part 11, so that the brake rod 8 is separated from the brake hole 3 on the hub of the rear wheel 1, and the brake on the rear wheel is released.

A pair of first chutes 12 are formed in the braking member 5, and the two first chutes 12 are respectively arranged on two outer sides of the braking member 5; a pair of strip holes 17 are formed in the transverse pipe 4, and the strip holes 17 are respectively arranged on two sides of the braking part 5 and correspond to the first inclined grooves 12; a limiting rod 18 is arranged on the transmission block in a penetrating and positioning mode, and the limiting rod 18 extends out of the strip-shaped hole 17; when the braking part 5 rotates, the limiting rod 18 is driven to reciprocate along the strip-shaped hole 17, so that the first chute 12 is clamped or separated, and finally the transmission block is driven to move towards or away from the braking part 5.

The brake device further comprises a first sleeve 13 and a second sleeve 14 which are sleeved outside the transverse pipe 4, one ends of the first sleeve 13 and the second sleeve 14 are rotatably connected with two ends of the pedal 6 respectively, and the other ends of the first sleeve 13 and the second sleeve 14 are correspondingly connected with the two wheel seats 2 respectively; two second inclined grooves 16 can be formed in one sleeve, and the two second inclined grooves 16 respectively correspond to two rotating limiting positions of the pedal 6; two second inclined grooves 16 can also be formed in the two sleeves, every two of the 4 second inclined grooves 16 on the two sleeves are symmetrically arranged along the braking piece 5, the two second inclined grooves 16 at the same height are called as a pair, and the two pairs of second inclined grooves 16 respectively correspond to two polar positions of the pedal 6 in rotation. The pedal device further comprises an elastic limiting piece 15 connected to the pedal 6, wherein the elastic limiting piece 15 has a limiting end, and when the pedal 6 rotates upwards or downwards to a limiting position, the limiting end correspondingly extends into the corresponding second inclined groove 16. The elastic limiting piece 15 comprises a limiting rod 18 with a limiting end and a third elastic piece 22, and the third elastic piece 22 acts between the limiting piece 21 and the pedal 6, so that the limiting end of the limiting piece 21 keeps the moving trend towards the second chute 16 on the sleeve; besides, the elastic limiting member 15 may also be an elastic sheet.

Each brake component also comprises a fixed block 19 fixedly arranged in the transverse pipe 4, and the fixed block 19 is positioned on the outer side of the transmission block; one end of the first elastic element 10 is connected with the fixed block 19 in a positioning manner, and the other end of the first elastic element is matched with the transmission block in an abutting manner.

Each brake component also comprises an end cover 20 which is assembled at the inner side of each wheel seat 2; one end of the second elastic element 11 is connected with the end cover 20 in a positioning way, and the other end of the second elastic element is connected with the brake lever 8 in a positioning way.

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

when the first traction wire 9a is connected with the first transmission block 7a in a positioning way, the second traction wire 9b is connected with the second transmission block 7b in a positioning way; when the rear wheel 1 needs to be braked, the pedal 6 is stepped down to enable the braking part 5 to rotate downwards, the two limiting rods 18 respectively move outwards along the first inclined grooves 12 in the strip-shaped holes 17 and are separated from the first inclined grooves 12, so that the two transmission blocks are driven to move outwards to be away from the braking part 5 and compress the second elastic parts 11, when the two transmission blocks move outwards, the traction lines connected with the two transmission blocks are in a loose state, the pulling force on the brake rods 8 is relieved, and the brake rods 8 extend into the brake holes 3 on the corresponding rear wheel 1 hub under the action of the second elastic parts 11, so that the rear wheel 1 is braked.

When the braking of the rear wheel 1 needs to be relieved, the pedal 6 is lifted upwards, the braking part 5 rotates upwards, in the rotating process, the two limiting rods 18 move inwards along the strip-shaped holes 17 under the action of the first elastic parts 10 and extend into the first inclined grooves 12 again, then the two transmission blocks are driven to move inwards towards the braking part 5, when the two transmission blocks move inwards, the traction lines connected with the two transmission blocks are in a tensioning state, further the action of the second elastic parts 11 is overcome, the braking rods 8 are pulled to move inwards and break away from the braking holes 3 on the corresponding rear wheel 1, and the braking of the rear wheel 1 is relieved.

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 those skilled in the art to understand the contents of the present invention and 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, the perambulator includes a pair of rear wheel (1) and a pair of wheel seat (2), wherein all is equipped with several braking hole (3) along circumference equidistance interval on the wheel hub of each rear wheel (1), its characterized in that:

the brake device comprises a transverse pipe (4) butted with the two wheel seats (2), a brake part (5) rotatably sleeved on the transverse pipe (4), a pedal (6) driving the brake part (5) to rotate, and a transmission block which is assembled with the brake part (5) in a transmission way and is arranged in the transverse pipe (4); wherein, the transmission blocks are provided with a pair and are respectively arranged at two sides of the braking part (5);

the brake device also comprises a pair of brake components which are respectively arranged at two sides of the brake part (5), and each brake component comprises a brake rod (8), a traction wire, a first elastic part (10) and a second elastic part (11);

one end of a first traction wire (9 a) is connected with the first brake lever (8) in a positioning way, and the other end of the first traction wire is connected with one of the two transmission blocks in a positioning way; one end of a second traction wire (9 b) is connected with the second brake lever (8) in a positioning way, and the other end of the second traction wire is connected with the other one of the two transmission blocks in a positioning way;

when the braking piece (5) rotates along a first direction, the two transmission blocks are pushed to move outwards to be far away from the braking piece (5);

when the braking part (5) rotates along a second direction, the two transmission blocks are inwards displaced towards the braking part (5) under the action of the first elastic part (10);

the brake rod (8) extends into the brake hole (3) on the hub of the rear wheel (1) under the action of the second elastic piece (11), is separated from the brake hole (3) on the hub of the rear wheel (1) under the action of the traction wire and sequentially corresponds to the braking state and the non-braking state of the rear wheel (1).

2. The brake apparatus for a rear wheel of a stroller according to claim 1, wherein: the braking part (5) is provided with a pair of first chutes (12), and the two first chutes (12) are respectively arranged on two outer sides of the braking part (5);

the transverse pipe (4) is provided with a pair of strip holes (17), and the strip holes (17) are respectively arranged at two sides of the braking part (5) and correspond to the first inclined grooves (12); a limiting rod (18) is arranged on the transmission block in a penetrating and positioning mode, and the limiting rod (18) extends out of the strip-shaped hole (17); when the braking piece (5) rotates, the limiting rod (18) is driven to reciprocate along the strip-shaped hole (17), and then the first chute (12) is clamped or separated.

3. The brake apparatus for a rear wheel of a stroller according to claim 1, wherein: the brake device further comprises a first sleeve (13) and a second sleeve (14) which are sleeved on the outer side of the transverse pipe (4), one ends of the first sleeve (13) and the second sleeve (14) are rotatably connected with two ends of the pedal (6) respectively, and the other ends of the first sleeve (13) and the second sleeve (14) are correspondingly connected with the two wheel seats (2) respectively;

wherein, two second chutes (16) are formed on at least one sleeve, and the two second chutes (16) respectively correspond to the two rotating limit positions of the pedal (6);

the pedal structure further comprises an elastic limiting part (15) connected to the pedal (6), wherein the elastic limiting part (15) is provided with a limiting end, and when the pedal (6) rotates to the limiting position, the limiting end extends into one of the two second inclined grooves (16).

4. The brake apparatus for a rear wheel of a stroller according to claim 1, wherein: each brake component also comprises a fixed block (19) fixedly arranged in the transverse pipe (4), and the fixed block (19) is positioned on the outer side of the transmission block; one end of the first elastic piece (10) is connected with the fixed block (19) in a positioning mode, and the other end of the first elastic piece is abutted and matched with the transmission block.

5. A brake device for a rear wheel of a stroller according to claim 1, wherein: each brake component also comprises an end cover (20) assembled at the inner side of each wheel seat (2); one end of the second elastic piece (11) is connected with the end cover (20) in a positioning mode, and the other end of the second elastic piece is connected with the brake lever (8) in a positioning mode.

6. A brake device for a rear wheel of a stroller according to claim 3, wherein: the elastic limiting piece (15) comprises a limiting rod (18) with a limiting end and a third elastic piece (22), and the third elastic piece (22) acts between the limiting block (21) and the pedal (6) to enable the limiting end of the limiting block (21) to keep towards the movement trend of the second chute (16) on the sleeve.