Brake mechanism and child carrier

Abstract

The utility model discloses a brake mechanism and a child carrier, the brake mechanism comprises a wheel seat, wheels, a brake box and a combination seat, and a lock pin is slidably arranged in the wheel seat; the wheels are detachably connected to the wheel seats through the wheel shafts and rotate around the wheel shafts relative to the wheel seats. The brake box is fixedly arranged on the wheel seat, and a brake ring is movably mounted in the brake box; the combination seat is fixedly arranged on the side, close to the wheel seat, of the wheel and comprises a lock seat fixed to the wheel and a brake disc fixed to the lock seat, the lock seat is provided with a plurality of lock grooves arranged around the wheel shaft, and the lock pin has a locking state extending into the lock grooves to limit rotation of the wheel and an unlocking state exiting from the lock grooves. The brake ring is stressed to deform and has a brake state for clamping the brake disc to limit rotation of wheels and a release state for releasing action on the brake disc, daily parking requirements are met, braking and speed reduction operation in emergency can be achieved, and use safety is improved.

Description

Technical Field

[0001] This application relates to the technical field of children's products, specifically a braking mechanism and a children's vehicle. Background Art

[0002] Existing children's strollers are mostly used for outdoor pushing. Among them, when the vehicle parks, it is necessary to step on the pedal located on the rear wheel. In case of an emergency, only manual force can be relied on to forcibly control the vehicle speed, which poses certain safety hazards. Utility Model Content

[0003] This application provides a braking mechanism that can achieve emergency braking and daily parking.

[0004] This application provides a braking mechanism, including:

[0005] A wheel seat, in which a locking pin is slidably arranged;

[0006] A wheel, detachably connected to the wheel seat through a wheel axle, and the wheel rotates relative to the wheel seat around the wheel axle;

[0007] A brake box, fixedly arranged on the wheel seat, and a brake ring is movably installed in the brake box;

[0008] A combination seat, fixedly arranged on one side of the wheel close to the wheel seat. The combination seat includes a locking seat fixed to the wheel, and a brake disc fixed to the locking seat. The locking seat is provided with a plurality of locking grooves arranged around the wheel axle. The locking pin has a locking state of extending into the locking groove to limit the rotation of the wheel, and an unlocking state of withdrawing from the locking groove. The brake ring deforms under force and has a braking state of clamping the brake disc to limit the rotation of the wheel, and a releasing state of releasing the action on the brake disc.

[0009] The following also provides several optional ways, but they are not additional limitations to the above overall solution. They are just further supplements or optimizations. Without technical or logical contradictions, each optional way can be combined with the above overall solution separately, or multiple optional ways can be combined with each other.

[0010] Optionally, the brake disc includes a disc body fixedly connected to the locking seat, and an extension part extending from the edge of the disc body along the wheel axle to cover the locking seat. The brake ring acts on the extension part in the braking state.

[0011] Optionally, the disc body is provided with avoidance holes corresponding to the locking grooves for the locking pin to pass through.

[0012] Optionally, the wheel includes a wheel rim, and the locking seat extends between the wheel rim and the brake disc, so that the wheel rim and the brake box are axially offset.

[0013] Optionally, the braking mechanism includes a first elastic member acting on the locking pin and a driving member rotatably connected to the wheel seat about a wheel shaft, and the driving member has:

[0014] A first position for driving the locking pin to switch from the unlocking state to the locking state and compressing the first elastic member;

[0015] A second position where the first elastic member is reset to drive the locking pin to return from the locking state to the unlocking state.

[0016] Optionally, the braking mechanism further includes a retaining member movably disposed in the wheel seat, and the retaining member acts on the driving member to keep it in the first position or the second position.

[0017] Optionally, the retaining member is slidably disposed in the wheel seat, and the driving member is provided with a first gear slot and a second gear slot that cooperate with the retaining member and correspond to the first position and the second position respectively. A guiding portion is provided between the two gear slots. When the driving member rotates, the guiding portion drives the retaining member to switch between the two gear slots.

[0018] Optionally, the braking mechanism further includes a second elastic member for driving the retaining member to extend into the corresponding gear slot.

[0019] The present application also provides a child carrier having the braking mechanism of the present application.

[0020] Optionally, the child carrier further includes two rear foot assemblies, and each rear foot assembly includes a rear foot rod and the braking mechanism disposed at the bottom of the rear foot rod.

[0021] The braking mechanism of the present application, in combination with the seat, the locking pin and the brake box, can meet the daily parking use, as well as the braking and deceleration operations in case of emergency, while meeting the existing use requirements and increasing the use safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural view of a child carrier according to an embodiment of the present application;

[0023] Figure 2 is a structural view of the braking mechanism according to an embodiment of the present application;

[0024] Figure 3 is Figure 2 a structural view of the braking mechanism in another perspective in

[0025] Figure 4 is Figure 2 an exploded view of the combination seat in

[0026] Figure 5 is Figure 4Structural view from another perspective;

[0027] Figure 6 is Figure 1 Top view at the rear foot component in

[0028] Figure 7 is Figure 6 Partial sectional view in the A-A direction in (the locking pin is in the locked state);

[0029] Figure 8 is Figure 6 Partial sectional view in the A-A direction in (the locking pin is in the unlocked state);

[0030] Figure 9 Connection view among the brake box, brake ring, and second tight brake crank of an embodiment of the present application;

[0031] Figure 10 Connection view among the brake box, brake ring, and second tight brake crank of another embodiment of the present application;

[0032] Figure 11 is Figure 2 Structural view of the driving member in .

[0033] Explanation of the reference numerals in the figure is as follows:

[0034] 1000, brake mechanism;

[0035] 100, wheel seat; 110, locking pin; 120, driving member; 121, first gear slot; 122, second gear slot; 123, guiding portion; 130, retaining member; 131, second elastic member; 140, cross bar; 150, pedal;

[0036] 200, wheel; 210, wheel axle; 220, wheel rim;

[0037] 300, brake box; 310, brake ring; 320, first tight brake crank; 330, brake pad; 340, second tight brake crank; 350, third tight brake crank;

[0038] 400, coupling seat; 410, lock seat; 411, lock slot; 412, first elastic member; 420, brake disc; 421, disc body; 422, extension portion; 423, avoidance hole;

[0039] 5000, child carrier; 500, vehicle frame; 510, front foot component; 520, rear foot component; 521, rear foot rod; 530, push handle component; 531, brake handle. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0041] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments, and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] In this application, terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity or order of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] Refer to Figures 1 to 9 , this application provides a braking mechanism 1000, which can be used for installation on a child carrier, such as a baby stroller. Among them, the braking mechanism 1000 includes a wheel seat 100, a wheel 200, a brake box 300 and a coupling seat 400. A locking pin 110 is slidably disposed in the wheel seat 100. The wheel 200 is detachably connected to the wheel seat 100 through a wheel axle 210, and when the wheel 200 is installed on the wheel seat 100, it can rotate relative to the wheel seat 100 around the wheel axle 210.

[0045] The brake box 300 is fixedly disposed on the wheel seat 100, and a brake ring 310 is movably installed in the brake box 300. The coupling seat 400 is fixedly disposed on the side of the wheel 200 close to the wheel seat 100. The coupling seat 400 includes a locking seat 410 fixed to the wheel 200 and a brake disc 420 fixed to the locking seat 410. The locking seat 410 is provided with a plurality of locking grooves 411 arranged around the wheel axle 210. The locking pin 110 slides along the axial direction of the wheel axle 210 and has a locking state (corresponding to the parking of the child carrier) of extending into the locking grooves 411 to limit the rotation of the wheel 200, and an unlocking state of withdrawing from the locking grooves 411.

[0046] The movement mode of the brake ring 310 can refer to the prior art, or Figure 9 As shown: The brake ring 310 is bent from a steel strip into a circle. One end of the brake ring 310 is fixed to the brake box 300, and the other end is rotatably connected to the first tight brake crank 320. A brake pad 330 that rubs against the following brake disc 420 is arranged inside the brake ring 310. The first tight brake crank 320 is rotatably installed in the brake box 300 and is remotely connected to the brake lever 531 through a steel wire to achieve remote braking operation. The braking operation is as follows: Apply force to the brake lever 531, drive the first tight brake crank 320 to rotate by the steel wire, and drive the brake ring 310 to deform under force to clamp the brake disc 420 to achieve deceleration or parking (i.e., the braking state). Release the brake lever 531, and the brake ring 310 returns to release the action on the brake disc 420 (i.e., the release state).

[0047] The brake disc 420 includes a disc body 421 fixedly connected to the lock seat 410, and an extension part 422 that extends from the edge of the disc body 421 along the wheel axle to cover the lock seat 410, making the axial structure more compact. Among them, the brake ring 310 acts on the outer side of the extension part 422 in the braking state. In the figure, the lock seat 410 is a columnar structure as a whole, the disc body 421 is a disc, the extension part 422 is a cylindrical structure, and the disc body 421 is provided with an avoidance hole 423 corresponding to the lock groove 411 for the lock pin 110 to pass through.

[0048] In one embodiment, the wheel 200 includes a rim 220, and the lock seat 410 extends between the rim 220 and the brake disc 420, so that the rim 220 and the brake box 300 are arranged axially offset on the wheel axle 210.

[0049] The present application also provides another structure for driving the brake ring 310. Refer to Figure 10 , the braking mechanism 1000 includes a second tight brake crank 340 and a third tight brake crank 350 that are respectively rotatably connected to both ends of the brake ring 310. The second tight brake crank 340 and the third tight brake crank 350 are both rotatably connected to the brake box 300, and the two tight brake cranks are meshed with each other. The meshing method includes but is not limited to the gear meshing shown in the figure. Among them, the second tight brake crank 340 is linked with the brake lever through a steel wire. During braking operation, apply force to the brake lever 531, the second tight brake crank 340 rotates, and drives the third tight brake crank 350 to rotate simultaneously. Compared with the previous structure of a single first tight brake crank 320, the deformation speed of the brake ring 310 is accelerated, and it enters the braking state earlier, further improving the use safety.

[0050] The emergency braking function of the braking mechanism 1000 is mentioned above. The following introduces the parking function of the braking mechanism 1000.

[0051] In one embodiment, the braking mechanism 1000 includes a first elastic member 412 acting on the locking pin 110, and a driving member 120 rotatably connected to the wheel seat 100 about a wheel axis. The driving member 120 has:

[0052] A first position where the driving locking pin 110 is switched from the unlocked state to the locked state and compresses the first elastic member 412;

[0053] A second position where the first elastic member 412 is reset to drive the locking pin 110 to return from the locked state to the unlocked state.

[0054] Wherein, referring to Figure 7 、 Figure 8 and Figure 11 , the braking mechanism 1000 further includes a holding member 130 movably disposed in the wheel seat 100. The holding member 130 acts on the driving member 120 to keep it in the first position or the second position. The holding member 130 is slidably disposed in the wheel seat 100. The driving member 120 is provided with a first gear slot 121 and a second gear slot 122 that cooperate with the holding member 130 and correspond to the first position and the second position respectively. Among them, a guiding portion 123 is provided between the two gear slots. When the driving member 120 rotates, the holding member 130 is driven to switch between the two gear slots through the guiding portion 123. The two gear slots are of a V-shaped structure, and the guiding portion 123 is an inclined surface where the two V-shaped structures approach each other. Correspondingly, the end surface of the holding member 130 that cooperates with the gear slot is V-shaped. Wherein, the braking mechanism 1000 further includes a second elastic member 131 disposed in the wheel seat 100. The second elastic member 131 acts on the holding member 130 to make it extend into the corresponding gear slot.

[0055] The present application further provides a children's vehicle 5000, including a vehicle frame 500. A braking mechanism is installed on the vehicle frame 500. Specifically, the vehicle frame 500 includes a front foot assembly 510, a rear foot assembly 520, and a push handle assembly 530. Among them, the rear foot assembly 520 includes a rear foot rod 521 and a braking mechanism 1000 disposed at the bottom of the rear foot rod 521. A brake lever 531 is installed on the push handle assembly 530. In the figure, a cross bar 140 is connected between the driving members 120 corresponding to the two wheel seats 100, and a pedal 150 for operation is provided on the cross bar 140.

[0056] The braking mechanism of the present application, in combination with the seat, the locking pin and the brake box, can meet the daily parking use, as well as the braking and deceleration operations in emergency situations, while meeting the existing use requirements and increasing the use safety.

[0057] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. When the technical features in different embodiments are embodied in the same drawing, the drawing can be regarded as also disclosing the combination examples of the respective embodiments involved.

[0058] The above embodiments only express several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. Brake mechanism, characterized in that, Comprising: A wheel seat, within which a locking pin is slidably arranged; A wheel, detachably connected to the wheel seat through a wheel axle, and the wheel rotates relative to the wheel seat around the wheel axle; A brake box, fixedly arranged on the wheel seat, and a brake ring is movably installed within the brake box; A coupling seat, fixedly arranged on one side of the wheel adjacent to the wheel seat. The coupling seat includes a locking seat fixed to the wheel, and a brake disc fixed to the locking seat. The locking seat is provided with a plurality of locking grooves arranged around the wheel axle. The locking pin has a locking state where it extends into the locking groove to restrict the rotation of the wheel, and an unlocking state where it withdraws from the locking groove. The brake ring deforms under force and has a braking state where it clamps the brake disc to restrict the rotation of the wheel, and a release state where the action on the brake disc is released.

2. The braking mechanism according to claim 1, characterized in that, The brake disc includes a disc body fixedly connected to the locking seat, and an extension portion extending from the edge of the disc body along the wheel axle to wrap the locking seat. The brake ring acts on the extension portion in the braking state.

3. The braking mechanism according to claim 2, characterized in that, The disc body is provided with avoidance holes corresponding to the locking grooves for the locking pin to pass through.

4. The braking mechanism according to claim 1, characterized in that The wheel includes a wheel rim, and the locking seat extends between the wheel rim and the brake disc, such that the wheel rim and the brake box are axially misaligned.

5. The braking mechanism according to claim 1, wherein Comprising a first elastic member acting on the locking pin, and a driving member rotatably connected to the wheel seat around the wheel axle, and the driving member has: A first position, driving the locking pin to switch from the unlocking state to the locking state and compressing the first elastic member; A second position, where the first elastic member resets to drive the locking pin to return from the locking state to the unlocking state.

6. The braking mechanism according to claim 5, wherein Further comprising a holding member movably arranged within the wheel seat, and the holding member acts on the driving member to keep it in the first position or the second position.

7. The braking mechanism according to claim 6, characterized in that, The holding member is slidably arranged within the wheel seat. The driving member is provided with a first gear slot and a second gear slot that cooperate with the holding member and correspond to the first position and the second position respectively. Among them, a guiding portion is arranged between the two gear slots. When the driving member rotates, the guiding portion drives the holding member to switch between the two gear slots.

8. The braking mechanism according to claim 7, wherein, Further comprising a second elastic member, and the second elastic member is used to drive the holding member to extend into the corresponding gear slot.

9. A children's vehicle, characterized in that, Having the brake mechanism as described in any one of claims 1 to 8.

10. The children's vehicle according to claim 9, characterized in that, Comprising two rear foot assemblies, and each rear foot assembly includes a rear foot rod and the brake mechanism arranged at the bottom of the rear foot rod.

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