CN216140051U - Brake mechanism of baby carriage and baby carriage - Google Patents
Brake mechanism of baby carriage and baby carriage Download PDFInfo
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- CN216140051U CN216140051U CN202121593792.XU CN202121593792U CN216140051U CN 216140051 U CN216140051 U CN 216140051U CN 202121593792 U CN202121593792 U CN 202121593792U CN 216140051 U CN216140051 U CN 216140051U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 238000013016 damping Methods 0.000 description 2
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- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a brake mechanism of a baby carriage and the baby carriage, wherein the baby carriage comprises a frame and a wheel component arranged at the bottom of the frame, the wheel component comprises a wheel seat connected with the frame and a wheel rotatably arranged on the wheel seat through a rotating shaft, the brake mechanism comprises a brake disc and a brake piece, the brake disc is movably arranged on the wheel, a guide limit structure for providing relative motion guide and limiting the relative motion range of the wheel and the brake disc is arranged between the wheel and the brake disc, the brake piece is movably arranged on the wheel seat, the brake mechanism has a brake state and an unlocking state, and the brake piece and the brake disc are mutually matched and fixed when the brake mechanism is in the brake state; when the brake mechanism is in the state of releasing the brake, the brake piece is disengaged from the brake disc. When the baby carriage provided with the brake mechanism disclosed by the utility model is used for braking, the brake resistance is small, and the use experience is good.
Description
Technical Field
The utility model relates to a brake mechanism of a baby carriage and the baby carriage.
Background
Referring to the chinese utility model with the publication number CN203637914U, in the conventional stroller, the brake mechanism adopts a scheme that the brake component (brake post) is fixed to the hub in a fitting manner, that is, the brake component (brake post) is inserted into the brake groove on the hub in a fitting manner. Before the braking operation, the positions of the braking component (braking column) and the braking groove are not corresponding, in this case, the braking is performed, the hub rotates forwards or backwards due to the pressing of the braking component (braking column), after the hub rotates, the braking groove is adjusted to be corresponding to the position of the braking component (braking column), and then the braking can be completed. During braking, the hub is involuntarily rotated forwards or backwards due to the braking part (braking column), so that the baby carrier in the prior art is labor-consuming in braking operation, and the use experience of a user is influenced.
Disclosure of Invention
It is an object of the present invention to provide an improved brake mechanism for a stroller.
In order to achieve the purpose, the utility model adopts the technical scheme that: the brake mechanism of the baby carriage comprises a frame and a wheel component arranged at the bottom of the frame, wherein the wheel component comprises a wheel seat connected with the frame and a wheel rotatably arranged on the wheel seat through a rotating shaft, the brake mechanism comprises a brake disc and a brake piece, the brake disc is movably arranged on the wheel, a guide limiting structure for providing relative motion guide and limiting the relative motion range of the wheel and the brake disc is arranged between the wheel and the brake disc,
the brake piece is movably arranged on the wheel seat, the brake mechanism has a brake state and a brake release state, and the brake piece and the brake disc are matched and fixed with each other when the brake mechanism is in the brake state; when the brake mechanism is in the state of releasing the brake, the brake piece is disengaged from the brake disc.
Preferably, the brake disc is rotatably disposed on the wheel around the wheel shaft.
Further, the direction limit structure includes arc guide way and arc direction arch, arc direction arch can set up sliding fit relatively in the arc guide way, arc guide way with one of these two sets of arc direction arch sets up on the wheel and the other sets up on the brake disc.
Furthermore, the direction limit structure still includes the elastic component, the elastic component can stretch out and draw back in order to provide the elastic restoring force along self length direction, the elastic component sets up arc direction protruding with between the arc guide way.
Furthermore, be provided with the accepting groove on the arc direction arch, all be provided with the perforation on two tip of arc direction arch, the perforation with the accepting groove communicates each other, the both ends of arc direction groove all have the orientation the protruding post that the arc direction arch extends, the protruding post can be inserted and establish relatively sliding fit in the perforation, direction limit structure still including setting up elastic component in the accepting groove, the length direction of elastic component is followed the protruding length direction of arc direction extends, and at least one side the protruding post supports and leans on the tip of elastic component.
Still further, the guide limit structure has two or more sets arranged at intervals along the circumferential direction.
In a preferred embodiment, the arc-shaped guide groove is provided on the wheel and the arc-shaped guide projection is provided on the brake disc.
As a preferred embodiment, the brake member is rotatably disposed on the wheel seat, the outer circumference of the brake disc has a plurality of brake posts circumferentially spaced apart, the brake member has brake grooves into which the brake posts can be inserted in a corresponding manner, and a guide structure for guiding the brake posts to be inserted into the brake grooves is further disposed between the brake grooves and the brake posts.
Preferably, the brake member is rotatably disposed on the wheel base around a pivot shaft, an axial lead of the pivot shaft is parallel to an axial lead of the rotating shaft, the brake post includes a post body extending along a radial direction of the brake disc and a clamping post fixedly disposed on an outer end portion of the post body, a circumferential side surface of the outer end of the clamping post is in a frustum shape, the brake groove has a notch portion, and the notch portion is gradually opened outwards.
It is another object of the present invention to provide a stroller having the brake mechanism described above.
In order to achieve the purpose, the utility model adopts the technical scheme that: the baby carriage comprises a carriage frame and a wheel assembly arranged at the bottom of the carriage frame, wherein the wheel assembly comprises a wheel seat connected with the carriage frame and wheels rotatably arranged on the wheel seat through rotating shafts, and the baby carriage further comprises the brake mechanism.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: when the baby carriage provided with the brake mechanism disclosed by the utility model is used for braking, the brake resistance is small, and the use experience is good.
Drawings
FIG. 1 is an exploded view of the brake mechanism of the stroller of the present invention;
FIG. 2 is a schematic structural diagram of a brake disc in the brake mechanism of the baby carriage;
FIG. 3 is a schematic structural view of a brake pad in the brake mechanism of the baby carriage according to the present invention;
FIG. 4 is a schematic structural view of an arc-shaped guide groove in the brake mechanism of the baby carriage according to the present invention;
FIG. 5 is a schematic structural view of a wheel guiding and limiting structure in the brake mechanism of the baby carriage according to the present invention;
FIG. 6 is a schematic side view of the brake mechanism of the stroller of the present invention in an unlocked state;
FIG. 7 is a schematic side view of the brake mechanism of the stroller of the present invention during the transition from the disengaged state to the braked state;
FIG. 8 is a schematic side view of the brake mechanism of the stroller of the present invention in a braking position;
wherein: 1. a frame; 2. a wheel assembly; 3. a wheel seat; 4. a rotating shaft; 5. a wheel;
6. a brake mechanism; 61. a brake disc; 61a, a brake post; 61b, a cylinder; 61c, a clamping column;
62. a braking member; 62a, a brake groove; 62b, a notch part;
7. a guiding and limiting structure; 71. an arc-shaped guide groove; 71a, a convex column;
72. an arc-shaped guide projection; 72a, a housing groove; 72b, punching;
73. an elastic member;
a. a pivot shaft; b. the axis of the rotating shaft.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.
The description herein of the up-down, left-right, front-back, inner-outer, etc. orientations are defined in terms of the up-down, left-right, front-back, inner-outer, etc. orientations as viewed by a child seated on the stroller.
A stroller, shown in figure 1, comprises a frame including a rear support 1 extending obliquely from front to rear and downwardly. The buggy further comprises a wheel assembly 2 arranged at the bottom of the frame, the wheel assembly 2 comprising a wheel seat 3 for connection to the frame, and wheels 5 rotatably mounted on the wheel seat 3 by means of a rotating shaft 4. The wheel assembly 2 also includes a brake mechanism 6.
The rear bracket 1 is provided with two groups of rear supporting rods 11 which are respectively arranged at the left side and the right side of the frame, a rotating shaft 4 is arranged between the two groups of rear supporting rods 11, and the rotating shaft 4 extends along the left-right direction and extends to the outer sides of the rear supporting rods 11 in the left-right direction. The wheel assemblies in the embodiment are at least two groups and are respectively arranged on the left side and the right side of the frame. On each of the left and right sides of the vehicle frame, the wheel assembly 2 is disposed at the bottom of the rear stay 11, and specifically, the wheel assembly 2 includes a wheel seat 3 disposed at the bottom of the rear stay 11, and a wheel 5 disposed on the outer end portion of the rotating shaft 4. Wherein, the rotating shaft 4 penetrates through the two groups of wheel seats 3 in the left and right direction, and the wheel seats 3 are fixedly arranged at the bottom of the rear supporting rod 11.
On each of the left and right sides of the vehicle frame, as shown in fig. 1 to 3, the brake mechanism 6 includes a brake disc 61 and a brake member 62, the brake disc 61 is rotatably disposed on the wheel 5 around the wheel axle 4, the brake member 62 is rotatably disposed on the wheel base 3 around a pivot axis a, the axis of the pivot axis a is parallel to the axis b of the rotating shaft 4, the outer peripheral portion of the brake disc 61 has a plurality of brake columns 61a circumferentially spaced apart, and the brake columns 61a include a column 61b extending in the radial direction of the brake disc 61, and a locking column 61c fixedly disposed on the outer end portion of the column. The brake piece 62 is provided with a brake groove 62a into which the brake columns 61a can be correspondingly inserted in a matching manner, the brake mechanism 6 has a braking state and a braking releasing state, and the brake mechanism 6 is in the braking state, wherein one of the brake columns 61a is correspondingly inserted in the brake groove 62a in a matching manner, so that the brake piece 62 and the brake disc 61 are mutually matched and fixed; when the brake mechanism 6 is in the brake-released state, the brake post 61a is disengaged from the brake groove 62a, so that the brake member 62 is disengaged from the brake disc 61.
A guiding and limiting structure 7 for providing relative movement guiding and limiting relative movement range of the wheel 5 and the brake disc 61 is arranged between the wheel and the brake disc. Referring to fig. 1 to 5, the guide limit structures 7 have two or more sets arranged at intervals in the circumferential direction, each set of guide limit structures 7 includes an arc-shaped guide groove 71 and an arc-shaped guide protrusion 72, the arc-shaped guide protrusion 72 is arranged in the arc-shaped guide groove 71 in a relatively sliding fit manner, one of the arc-shaped guide groove 71 and the arc-shaped guide protrusion 72 is arranged on the wheel 5, and the other is arranged on the brake disc 61. In the present embodiment in particular, the arc-shaped guide groove 71 is provided on the wheel 5 and the arc-shaped guide projection 72 is provided on the brake disc 61.
Referring to fig. 1 and 5, the guide stopper 7 further includes an elastic member 73 disposed between the arc-shaped guide protrusion 72 and the arc-shaped guide groove 71. Specifically, the arc-shaped guide protrusion 72 is provided with a receiving groove 72a, the elastic member 73 is disposed in the receiving groove 72a, a length direction of the elastic member 73 extends along a length direction of the arc-shaped guide protrusion 72, and the elastic member 73 can extend and contract along the length direction thereof to provide an elastic restoring force along the length direction thereof.
Both ends of the arc-shaped guide protrusion 72 are provided with through holes 72b, the through holes 72b are communicated with the receiving grooves 72a, both ends of the arc-shaped guide groove 71 are provided with convex columns 71a extending towards the arc-shaped guide protrusion 72, and the convex columns 71a can be inserted into the through holes 72b in a relatively sliding fit manner. During braking, the protruding column 71a on one side end of the arc-shaped guiding slot 71 passes through the corresponding through hole 72b and abuts against the elastic piece 73 arranged in the accommodating slot 72 a. The elastic member 73 is compressed by the boss 71a, and the length thereof is shortened to accumulate elastic restoring force.
A guiding structure for guiding the brake post 61a to be inserted into the brake groove 62a is further disposed between the brake groove 62a and the brake post 61a, specifically, in this embodiment, the circumferential side surface of the outer end of the clamping post 61c is in a frustum shape, the brake groove 62a has a notch portion 62b, the notch portion 62b is in an outward gradually expanding shape, and the guiding structure is the frustum-shaped circumferential side surface and the notch portion 62b located at the outer end of the clamping post 61 c. During braking, the front side wall of the notch part 62b is in relatively sliding contact with the frustum-shaped circumferential side surface of the outer end of the clamping column 61c, so that the brake disc 61 is driven to rotate backwards around the wheel shaft 4, the brake column 61a is gradually adjusted to a position corresponding to the notch of the brake groove 62a, and at the moment, the brake column 61a can be inserted into the brake groove 62 a; during braking, the rear side wall of the notch portion 62b is in relatively sliding abutment with the frustum-shaped circumferential side surface of the outer end of the clamping column 61c, and the brake disc 61 is driven to rotate forward around the wheel shaft 4, so that the brake column 61a is gradually adjusted to a position corresponding to the notch of the brake groove 62a, and at this time, the brake column 61a can be inserted into the brake groove 62 a.
A damping structure for keeping the braking mechanism in a braking state is further provided between the braking member 62 and the wheel seat 3, and specifically, the damping structure includes a limit boss 41 protruding outside the shaft body in the radial direction of the rotating shaft 4, and an escape groove portion 62b provided inside the braking member 62. Specifically, in the present embodiment, the limit boss 41 is located inside the wheel holder 3 in the left-right direction, and the escape groove portion 62b is provided with an opening facing downward and corresponding to the position of the rotating shaft 4. When the brake mechanism 6 is in the braking state, the rotating shaft 4 is positioned in the avoiding groove part 62b, the limiting boss 41 abuts against the inner side wall of the avoiding groove part 62b, and the brake piece 62 is limited to rotate, so that the brake mechanism is kept in the braking state. When the brake needs to be released, the brake piece 62 is kicked upwards, so that the limiting boss 41 is separated from the avoiding groove part 62b, and the brake piece 62 can be rotated and reset to release the brake.
It should be noted that the following description only takes the example that the brake disc 61 rotates backward so that the position of the locking column 61c corresponds to the position of the notch part 62b, and the brake disc 61 can also rotate forward so that the locking column 61c corresponds to the position of the notch part 62 b. The rotation of the brake disc 61 in the forward or backward direction depends on the positional relationship between the brake front brake groove 62a and the brake post 61 a.
In the process of switching the brake mechanism 6 from the brake release state to the brake state, referring to fig. 6 to 8, the brake element 62 is stepped down, the brake element 62 rotates downward around the pivot shaft a, the brake groove 62a and the brake post 61a gradually move closer to each other, until the circumferential side surface of the outer end of the clamping post 61c abuts against the notch 62b, the notch 62b drives the brake disc 61 to rotate counterclockwise and upward around the shaft 4 until the positions of the clamping post 61c and the notch of the notch 62b correspond, and the brake post 61a is fittingly inserted into the brake groove 62 a; synchronously, the convex column 71a on one side end of the arc-shaped guide groove 71 passes through the corresponding through hole 72b and abuts against the elastic piece 73 arranged in the accommodating groove 72a, and the length of the elastic piece 73 is shortened by the extrusion of the convex column 71a, so that the elastic restoring force is accumulated. The above arrangement makes it possible to prevent the wheel 5 from being rotated backward during braking due to the positional misalignment between the notches of the brake grooves 62a and the brake posts 61 a.
In the process of switching the brake mechanism 6 from the braking state to the braking releasing state, the brake element 62 is kicked upwards, the brake column 61a is separated from the brake groove 62a, the convex column 71a is gradually far away from the elastic element 73, so that the length of the elastic element 73 is extended, and the elastic restoring force released by the elastic element 73 drives the brake disc 61 to reset; in linkage, the brake disc 61 drives the brake member 62 to rotate upward around the rotation axis a, and the brake member 62 returns to the position before braking.
In conclusion, when the baby carriage provided with the brake mechanism disclosed by the utility model is used for braking, the brake resistance is small, and the use experience is good.
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 (10)
1. The utility model provides a brake mechanism of bassinet, the bassinet includes the frame and locates the wheel subassembly of frame bottom, the wheel subassembly include be used for with wheel seat that the frame is connected to and install through the pivot ground wheel on the wheel seat, its characterized in that: the brake mechanism comprises a brake disc and a brake piece, the brake disc is movably arranged on the wheel, a guide limit structure which provides relative motion guide and limits the relative motion range of the wheel and the brake disc is arranged between the wheel and the brake disc,
the brake piece is movably arranged on the wheel seat, the brake mechanism has a brake state and a brake release state, and the brake piece and the brake disc are matched and fixed with each other when the brake mechanism is in the brake state; when the brake mechanism is in the state of releasing the brake, the brake piece is disengaged from the brake disc.
2. A brake mechanism for a stroller according to claim 1, wherein: the brake disc is rotatably disposed on the wheel about the axle.
3. A brake mechanism for a stroller according to claim 2, wherein: the direction limit structure includes arc guide way and arc direction arch, the arc direction arch can set up relatively sliding fit in the arc guide way, the arc guide way with one of these two settings of arc direction arch is in on the wheel and another setting is in on the brake disc.
4. A brake mechanism for a stroller according to claim 3, wherein: the guide limiting structure further comprises an elastic piece, the elastic piece can stretch along the length direction of the elastic piece to provide elastic restoring force along the length direction of the elastic piece, and the elastic piece is arranged between the arc-shaped guide protrusion and the arc-shaped guide groove.
5. A brake mechanism for a stroller according to claim 3, wherein: the arc-shaped guide protrusion is provided with an accommodating groove, two end portions of the arc-shaped guide protrusion are provided with through holes, the through holes are communicated with the accommodating grooves, two end portions of the arc-shaped guide groove are provided with a direction towards the protruding column extending from the arc-shaped guide protrusion, the protruding column can be inserted into the through holes in a sliding fit mode, the guide limiting structure further comprises an elastic piece arranged in the accommodating groove, the length direction of the elastic piece extends along the length direction of the arc-shaped guide protrusion, and the protruding column on at least one side is abutted against the end portion of the elastic piece.
6. A brake mechanism for a stroller according to claim 3, wherein: the guide limiting structure is provided with two or more groups which are arranged at intervals along the circumferential direction.
7. A brake mechanism for a stroller according to any of claims 3 to 6, wherein: the arc guide groove is arranged on the wheel, and the arc guide bulge is arranged on the brake disc.
8. A brake mechanism for a stroller according to any of claims 1 to 6, wherein: the brake piece rotationally sets up on the wheel seat, have a plurality of brake posts along circumference interval distribution on the outside week portion of brake disc, have on the brake piece and supply the brake post corresponds the male brake groove of cooperation, the brake groove with still be provided with the guide between the brake post inserts guide structure in the brake groove.
9. A brake mechanism for a stroller according to claim 8, wherein: the brake piece is rotationally arranged on the wheel seat around the pivot shaft, the axial lead of the pivot shaft is parallel to the axial lead of the rotating shaft, the brake column comprises a column body extending along the radial direction of the brake disc and a clamping column fixedly arranged on the outer end part of the column body, the circumferential side surface of the outer end of the clamping column is in a frustum shape, the brake groove is provided with a notch part, and the notch part is gradually opened outwards.
10. A bassinet, includes the frame with locate the wheel subassembly of frame bottom, the wheel subassembly is including being used for with wheel seat that the frame is connected to and install through the pivot ground on the wheel seat, its characterized in that: further comprising a brake mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121593792.XU CN216140051U (en) | 2021-07-12 | 2021-07-12 | Brake mechanism of baby carriage and baby carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121593792.XU CN216140051U (en) | 2021-07-12 | 2021-07-12 | Brake mechanism of baby carriage and baby carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216140051U true CN216140051U (en) | 2022-03-29 |
Family
ID=80801894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121593792.XU Active CN216140051U (en) | 2021-07-12 | 2021-07-12 | Brake mechanism of baby carriage and baby carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216140051U (en) |
-
2021
- 2021-07-12 CN CN202121593792.XU patent/CN216140051U/en active Active
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