CN215322817U

CN215322817U - Wheel assembly of baby carriage and baby carriage

Info

Publication number: CN215322817U
Application number: CN202120700189.0U
Authority: CN
Inventors: 高翔; 马旭
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-03-18
Filing date: 2021-04-07
Publication date: 2021-12-28
Anticipated expiration: 2031-04-07
Also published as: CN113085989A

Abstract

The utility model discloses a wheel component of a child vehicle and the child vehicle, wherein the wheel component comprises a wheel joint, a wheel rotatably arranged on the wheel joint and a brake mechanism, the brake mechanism comprises a brake disc fixedly arranged on the wheel and a brake disc component arranged on the wheel joint, the brake mechanism has a braking and releasing state, the brake disc component is in abutting fit with the brake disc in the braking state, the brake disc component is separated from the brake disc in the releasing state, the brake disc is provided with a matching part matched with the brake disc component when the brake mechanism is in the braking state, and the wheel component also comprises a dust removing component arranged on the wheel joint or the brake disc component and used for cleaning the matching part. This wheel subassembly accessible dust removal piece clearance adhesion is at the dust on the global in the outside of brake disc to can avoid brake mechanism to produce the noise when the brake, travelling comfort when having improved the child's bike and using.

Description

Wheel assembly of baby carriage and baby carriage

Technical Field

The utility model relates to the technical field of children products, in particular to a wheel assembly of a child bicycle and the child bicycle.

Background

The perambulator provides great convenience for people to carry smaller children to carry out outdoor activities. When the perambulator is carried out in the open air, certain potential safety hazard can exist when the speed is too fast when the treadmill in the perambulator is turning. Therefore, the treadmill is provided with the brake mechanism, when the treadmill turns, the brake mechanism is in a brake state, the speed of the treadmill can be reduced, and the safety performance of the treadmill when turning is improved; when the treadmill runs linearly, the brake mechanism is in the state of releasing the brake.

Chinese patent CN2020103561450 discloses a brake mechanism of a treadmill, which comprises a brake disc fixedly arranged on a wheel, and a brake assembly arranged on a wheel seat, wherein the brake assembly comprises a brake pad, the brake pad is arranged around the circumferential outer side of the brake disc, and when the brake mechanism is in a braking state, the brake pad is tightly held on the circumferential portion of the outer side of the brake disc; when the brake mechanism is in the state of releasing the brake, the brake block is separated from the brake disc. When braking, the brake mechanism can generate larger noise, thereby influencing the use of the baby carriage.

SUMMERY OF THE UTILITY MODEL

The present invention addresses the deficiencies of the prior art by providing a wheel assembly for a child's vehicle that does not generate or is relatively quiet when braked.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a wheel subassembly of perambulator, includes the wheel connector, can set up with rotating wheel and brake mechanism on the wheel connector, brake mechanism is including fixed the setting brake disc on the wheel is in with the setting brake block subassembly on the wheel connector, brake mechanism has brake and the state of deblocking, works as when brake mechanism is in the brake state, brake block subassembly with the cooperation of contradicting of brake disc works as when brake mechanism is in the state of deblocking, brake block subassembly breaks away from the brake disc, the brake disc has and works as when brake mechanism is in the brake state with the inconsistent complex cooperation portion of brake block subassembly, the wheel subassembly is still including setting up the wheel connector or be used for on the brake block subassembly right the cooperation portion cleans the piece that removes dust.

Preferably, the dust removing part is provided with a cleaning head, and when the brake mechanism is in a brake releasing state, the cleaning head is in contact with the matching part or in intermittent contact with the matching part.

Preferably, the matching part is the outer circumferential surface of the brake disc, the brake disc assembly comprises a ring part which is annularly arranged on the outer circumferential side of the brake disc and is provided with an opening, the ring part is provided with a first end part and a second end part which are oppositely arranged, and at least one end part of the two end parts of the first end part and the second end part is provided with the dust removing part.

Further, the dust removing piece is provided with a cleaning head for cleaning the matching part, the cleaning head is bristles, and when the bristles clean the matching part, the bristles are in contact with the matching part and deform and topple over.

Furthermore, the cleaning head is respectively arranged at the first end part and the second end part, the ring part, the matching part and the bristles positioned at the first end part and the second end part form a closed space, the closed space is provided with an inlet end and an outlet end, the bristles positioned at the outlet end incline in the same direction as the rotating direction of the wheel, and the bristles positioned at the inlet end incline in the opposite direction to the rotating direction of the wheel.

Further, the opening of the ring portion is disposed downward.

Preferably, the dust removing member is detachably provided to the wheel connector or the brake pad assembly.

Preferably, the dust removing part comprises a fixing part connected with the brake block assembly or the wheel joint and a cleaning head for cleaning the matching part, and the cleaning head is fixedly arranged on the fixing part.

The utility model also provides a child vehicle having a wheel assembly as claimed in any one of the above.

Preferably, the child vehicle comprises a frame, a front wheel assembly arranged at the front part of the bottom of the frame and a rear wheel assembly arranged at the rear part of the bottom of the frame, wherein the front wheel assembly comprises a front wheel, the rear wheel assembly comprises a rear wheel, the diameter of the rear wheel is larger than that of the front wheel, and the wheel assembly is the rear wheel assembly.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the brake pad of the brake mechanism in the prior art can generate dust due to abrasion after being used for multiple times, part of dust can be adhered to the outer circumferential surface of the brake disc, and when more dust is accumulated to brake, the brake mechanism can generate noise. The wheel assembly of the baby carriage can clean dust adhered to the outer side peripheral surface of the brake disc through the dust removing piece, so that noise generated by a brake mechanism during braking can be avoided, and the comfort of the baby carriage during use is improved. Moreover, the problem of high noise in the braking process can be solved only by cleaning the peripheral surface of the outer side of the brake disc through the dust removing piece, and the brake disc cleaning device is simple in structure and wide in applicability.

Drawings

FIG. 1 is a schematic structural view of a wheel assembly of the present embodiment (with brake operating components removed);

fig. 2 is a schematic structural view (enlarged view) of a closed space formed by a ring portion of a brake pad assembly, a fitting portion of a brake disc, and bristles at first and second end portions in the wheel assembly of the present embodiment;

fig. 3 is a schematic structural view of the wheel assembly of the present embodiment with the brake disc mounted on the wheel;

FIG. 4 is a schematic structural view of the dust removing member of the wheel assembly of this embodiment mounted on the brake pad assembly;

FIG. 5 is a schematic structural view of a dust removing member of the wheel assembly of the present embodiment;

FIG. 6 is a perspective view of the child's vehicle of the present embodiment;

fig. 7 is a schematic top view of the child vehicle of the present embodiment (with the brake mechanism in an unlocked state);

FIG. 8 is a schematic cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is an enlarged partial view of FIG. 8 at A;

FIG. 10 is a schematic top view of the child's vehicle of this embodiment (with the brake mechanism in a braking state);

FIG. 11 is a schematic cross-sectional view taken along line A-A of FIG. 10;

fig. 12 is an enlarged view of a portion a of fig. 11.

Wherein: 11. a brake disc; 111. a fitting portion; 12. a brake pad assembly; 121. a ring portion; 121a, a support ring; 121b, brake pads; 122. a connecting portion; 13. an elastic component; 14. a rotating shaft; 15. a brake operating assembly; 2. a dust removal member; 21. cleaning the head; 22. a fixed part; 4. a wheel joint; 5. a wheel; 51. a central ring; 100. a frame; 200. a front wheel; A. a closed space; a1, inlet end; a2, outlet end; E. direction of rotation of the wheel.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 12, the wheel assembly includes a wheel joint 4, a wheel 5 rotatably provided on the wheel joint 4, and a brake mechanism. The brake mechanism has a braking state and a releasing state, and when the brake mechanism is in the braking state, the wheel 5 rotates at a reduced speed; when the brake mechanism is in the state of releasing the brake, the wheel 5 can normally rotate.

As shown in fig. 1 to 12, the brake mechanism includes a brake disc 11, a brake pad assembly 12, an elastic assembly 13, and a brake operating assembly 15.

In this embodiment, the brake disc 11 is fixedly disposed on the wheel 5. Specifically, the wheel 5 has a center ring 51, and the brake holder 11 is disposed on the center ring 51 and is disposed coaxially with the center ring 51. When the wheel 5 rotates, the brake disc 11 is driven to rotate synchronously.

A brake pad assembly 12 is provided on the wheel joint, the brake pad assembly 12 being capable of being engaged with or disengaged from a brake disc 11, the brake disc 11 having an engagement portion 111 for engagement with the brake pad assembly 12. When the brake mechanism is in a braking state, the brake pad assembly 12 is in contact fit with the matching part 111 of the brake disc 11; when the brake mechanism is in the released state, the brake pad assembly 12 is disengaged from the brake disc 11.

The brake plate assembly 12 is of a resilient annular configuration. Specifically, the brake pad assembly 12 includes a ring portion 121 annularly disposed on the circumferential outer side of the brake disc 11 and having an opening, and the engagement portion 111 of the brake disc 11 is the outer circumferential surface of the brake disc 11. When the brake mechanism is in a braking state, the brake pad assembly 12 is elastically deformed, and the inner circumferential surface of the ring portion 121 abuts against the outer circumferential surface of the brake disc 11, so that the ring portion 121 tightly holds the brake disc 11, thereby reducing the rotation speed of the brake disc 11, i.e., the wheel 5. When the brake pad assembly 12 is elastically deformed differently, the ring portion 121 grips the outer circumferential surface of the brake disc 11 differently, and the rotation speed of the brake disc 11, i.e., the wheel 5, also differs. When the brake mechanism is in the released state, the brake pad assembly 12 is restored to be elastically deformed, and the inner circumferential surface of the ring portion 121 is separated from the outer circumferential surface of the brake disc 11.

In this embodiment, the ring portion 121 includes two arc-shaped support rings 121a and a brake pad 121b fixedly disposed on an inner circumferential surface of each support ring 121a, one end portions of the two support rings 121a are rotatably connected to the wheel adapter 4 by the rotating shaft 14, the other end portions of the two support rings 121a are distant from a first end portion and a second end portion forming an opening of the ring portion 121, and the first end portion and the second end portion are disposed opposite to each other. The brake pad assembly 12 further includes a connecting portion 122 fixedly connected or integrally provided with the other end portion of the support ring 121a and extending toward the outside of the ring portion 121. When the brake mechanism is in a braking state, the brake pad 121b abuts against the outer circumferential surface of the brake disc 11, and the two connecting parts 122 are close to each other; when the brake mechanism is in the released state, the brake pad 121b is separated from the outer circumferential surface of the brake disc 11, and the two connecting portions 122 are separated from each other.

The support ring 121a has elasticity, the support ring 121a is integrally formed with the connecting portion 122, and preferably, the support ring 121a and the connecting portion 122 are both made of spring steel.

The brake pad 121b is made of rubber, when the brake mechanism brakes, the brake pad assembly 12 elastically deforms to enable the brake pad 121b to abut against the outer circumferential surface of the brake disc 11, braking is achieved through friction between the brake pad 121b and the brake disc 11, and the brake pad 121b can be replaced after being worn.

The brake pad assembly 12 is elastically deformed when the brake operating assembly 15 is operated, and the brake pad assembly 12 is elastically deformed by the combined action of the elasticity of the brake pad assembly 12 itself and the elastic force of the elastic assembly 13 when the brake operating assembly 15 is released. Both the brake operating assembly 15 and the resilient assembly 13 may be provided in a manner known in the art.

The wheel assembly further comprises a dust removing member 2 for cleaning the fitting part 111 of the brake disc 11, the dust removing member 2 comprising a cleaning head 21, the cleaning head 21 being used for removing impurities such as dust adhered to the fitting part 111 of the brake disc 11.

The cleaning head 21 may be made of a flexible material, such as bristles, sponge, etc.

The cleaning head 21 may be a device capable of generating a fluid medium. For example, the cleaning head 21 may spray air to blow off impurities such as dust on the engagement portion 111 of the disc rotor 11, or the cleaning head 21 may spray water to wash off impurities such as dust on the engagement portion 111 of the disc rotor 11.

When the cleaning head 21 is made of flexible material and the brake mechanism is in the state of releasing the brake, i.e. when the wheel 5 rotates normally, the cleaning head 21 and the matching part 111 of the brake disc 11 are always in the state of contact, and when the brake pad 121b is worn less, the cleaning head 21 and the matching part 111 of the brake disc 11 can be in intermittent contact. Thus, when the wheel 5 normally rotates, the cleaning head 21 can remove impurities such as dust on the matching part 111 of the brake disc 11, thereby avoiding the noise generated by the brake mechanism during the braking process.

If the cleaning head 21 adopts the brush hair, when cleaning the matching part 111 through the brush hair, the brush hair contacts with the matching part 111, the brush hair deforms and falls, so that the brush hair can fully contact with the matching part 111, and dust adhered to the matching part 111 can be cleaned more favorably.

The cleaning head 21 is provided at least at one end position of both ends of the first end and the second end of the ring portion 121. In this embodiment, the cleaning heads 21 are disposed at the first end and the second end of the ring portion 121.

If bristles are used for the cleaning head 21, the ring portion 121 of the brake disc assembly 12, the engagement portion 111 of the brake disc 11 and the bristles at the first and second end positions thus form an enclosed space a having an inlet end a1 and an outlet end a2 in the direction of rotation E of the wheel 5, as shown in fig. 2. The direction of the bristles at the location of the outlet end a2 is the same as the direction of rotation of the wheel 5, so that dust falling from the brush easily falls to the outside of the enclosed space a. And the direction of pouring of the brush staples at the position of the inlet end a1 is opposite to the direction of rotation of the wheel 5, so that dust falling outside the closed space a is less likely to enter the closed space a and adhere to the fitting portion 111 of the brake disc 11 again.

To further prevent dust falling outside the closed space a from entering into the closed space a and adhering to the fitting portion 111 of the brake disc 11 again, the opening of the ring portion 121 is disposed downward.

The dust-removing member 2 may be provided on the wheel connector 4 or may be provided on the brake pad assembly 12. The dust-removing elements 2 are detachably connected to the wheel connections 4 or the brake pad assembly 12 so that new dust-removing elements 2 can be replaced when the cleaning heads 21 of the dust-removing elements 2 are worn more severely. With respect to the construction of the brake pad assembly 12 given in this embodiment, it is preferred that the dust removing member be provided on the brake pad assembly 12.

Specifically, the dust removing member 2 further includes a fixing portion 22, the fixing portion 22 is disposed on the connecting portion 122, and the cleaning head 21 is fixedly disposed on the fixing portion 22.

The wheel assembly can be applied to a child bicycle, and the running bicycle is preferably used on the running bicycle due to the fact that the speed of the running bicycle is high during use, the brake mechanism is used frequently, and the brake pad is seriously abraded.

As shown in fig. 6 to 12, the child vehicle includes a frame 100, a front wheel assembly rotatably provided at a front portion of a bottom of the frame 100, and a rear wheel assembly provided at a rear portion of the bottom of the frame 100, wherein the front wheel assembly includes a front wheel 200, and the rear wheel assembly includes a rear wheel, and the rear wheel assembly of the child vehicle adopts the wheel assembly of the present invention, that is, the wheel 5 is a rear wheel of the child vehicle, and a diameter of the rear wheel is larger than a diameter of the front wheel for the running vehicle.

Referring to fig. 7 to 9, when the brake mechanism is in the braking release state, a distance is formed between the inner circumferential surface of the brake pad 121b and the outer circumferential surface of the brake disc 11, the wheel 5 and the brake disc 11 can freely rotate relative to the wheel joint 4, and the child car can normally run. In the normal running process of the baby carriage, the cleaning head 21 of the dust removing part 2 is always abutted against the outer circumferential surface of the brake disc 11, so that rubber dust and other impurities which are adhered to the outer circumferential surface of the brake disc 11 and are generated due to the abrasion of the brake pad 121b can be removed.

When the brake operating assembly 15 is operated, the two connecting portions 122 in the brake pad assembly 12 are relatively close to each other, so that the opening of the ring portion 121 of the brake pad assembly 12 is gradually reduced, the diameter of the ring portion 121 is also reduced, the inner circumferential surface of the brake pad 121b is pressed against the outer circumferential surface of the brake disc 11, and the brake mechanism is in a braking state, as shown in fig. 10 to 12. In this state, the friction between the inner circumferential surface of the brake pad 121b and the outer circumferential surface of the brake disc 11 reduces the rotation speed of the brake disc 11 together with the wheel 5, thereby achieving the purpose of speed reduction and improving the safety performance of the child car in use. In the braking process, because impurities such as dust on the matching part 111 are cleaned, the brake pad assembly 12 and the brake disc 11 do not generate noise or generate little noise when being tightly held, so that the use of the baby carriage is not influenced.

When the baby carriage does not need to be decelerated continuously, the brake operating assembly 15 is released, the brake pad assembly 12 restores to be elastically deformed under the combined action of the elasticity of the support ring 121a and the elasticity of the elastic assembly 13, and the brake pad assembly 12 is separated from the brake disc 11, so that the brake is released. When the child car normally runs, the cleaning head 21 continues to clean impurities such as dust on the matching part 111 of the brake disc 11.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to 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 within the protection scope of the present invention.

Claims

1. The utility model provides a wheel subassembly of perambulator, includes the wheel connector, can set up with rotating wheel and brake mechanism on the wheel connector, brake mechanism is including fixed the setting brake disc on the wheel is in with the setting brake block subassembly on the wheel connector, brake mechanism has the brake and the state of deblocking, works as when brake mechanism is in the brake state, brake block subassembly with the cooperation of contradicting of brake disc, works as when brake mechanism is in the state of deblocking, brake block subassembly breaks away from the brake disc, its characterized in that: the brake disc has when brake mechanism is in brake state with the inconsistent complex cooperation portion of brake block subassembly, the wheel subassembly is still including setting up the wheel connects or be used for on the brake block subassembly right the cooperation portion cleans the piece that removes dust.

2. The wheel assembly for a child's vehicle of claim 1, wherein: the dust removal piece has the cleaning head, works as when the brake mechanism is in the state of separating to brake, the cleaning head with cooperation portion contact or intermittent type nature contact.

3. The wheel assembly for a child's vehicle of claim 1, wherein: the cooperation portion is the global in the outside of brake disc, the brake block subassembly includes that the ring is established brake disc circumference outside just has open-ended ring portion, the ring portion has relative first end and the second end that sets up, first end with at least one tip position department in the second end both ends is provided with the piece that removes dust.

4. The wheel assembly for a child's vehicle of claim 3, wherein: the dust removal piece is provided with a cleaning head for cleaning the matching part, the cleaning head is bristles, and when the bristles are used for cleaning the matching part, the bristles are in contact with the matching part and deform and topple over.

5. The wheel assembly for a child's vehicle of claim 4, wherein: the cleaning head sets up respectively first end with second end position department, ring portion cooperation portion with be located first end with second end position department the brush hair forms an enclosure, follows the direction of rotation of wheel, the enclosure has entry end and exit end, is located the exit end the direction that the brush hair emptys with the direction of rotation of wheel is the same, is located the entry end the direction that the brush hair emptys with the direction of rotation of wheel is opposite.

6. The wheel assembly for a child's vehicle of claim 3, wherein: the opening of the ring part is arranged downwards.

7. The wheel assembly for a child's vehicle of claim 1, wherein: the dust removing piece is detachably arranged on the wheel joint or the brake pad component.

8. The wheel assembly for a child's vehicle of claim 1, wherein: the dust removal piece includes with the brake block subassembly or the fixed part that the wheel connects is connected with the cleaning head that cooperation portion cleaned, the cleaning head is fixed to be set up on the fixed part.

9. A child's vehicle, characterized in that: a wheel assembly as claimed in any one of claims 1 to 8.

10. The child's vehicle of claim 9, wherein: the child's bike comprises a bike frame, a front wheel assembly and a rear wheel assembly, wherein the front wheel assembly is arranged at the front portion of the bottom of the bike frame, the rear wheel assembly is arranged at the rear portion of the bottom of the bike frame, the front wheel assembly comprises front wheels, the rear wheel assembly comprises rear wheels, the diameters of the rear wheels are larger than those of the front wheels, and the wheel assemblies are the rear wheel assemblies.