Brake mechanism and baby carrier

Abstract

This invention relates to a braking mechanism and an infant carrier. The braking mechanism includes a wheel hub, a mounting base, a retainer, a pedal assembly, and a first reset member. The wheel hub has a first mating portion. The mounting base is fixed to the wheel hub and has a second mating portion that can lock into the first mating portion. The retainer has a first position and a second position. When the retainer is in the first position, the second mating portion is disengaged from the first mating portion; when the retainer is in the second position, the second mating portion is locked into the first mating portion. When the retainer is in the first position, a force is applied to the pedal assembly in a first direction, causing the retainer to move from the first position to the second position; when the retainer is in the second position, a force is applied to the pedal assembly in the first direction, causing the retainer to move from the second position to the first position. The first reset member constantly moves the pedal assembly in the opposite direction to the first direction.

Description

Technical Field

[0001] This invention relates to the technical field of baby products, and in particular to a braking mechanism and a baby carrier. Background Technology

[0002] In common infant vehicles, such as strollers, the brake pedals of most strollers require a reciprocating motion to brake and unlock. For example, pressing down on the brake pedal to brake the stroller requires hooking the brake pedal upwards with your foot to unlock it, which is very inconvenient and may scratch the user's shoes. Summary of the Invention

[0003] Therefore, it is necessary to provide a braking mechanism and an infant carrier that can be operated by simply stepping on the brake pedal when braking and releasing, which is convenient and will not scratch the user's shoes.

[0004] A braking mechanism, comprising:

[0005] The wheel hub is equipped with a first mating part;

[0006] A fixing seat is fixed to the wheel hub, and the fixing seat is provided with a second mating part that can lock and engage with the first mating part.

[0007] A retainer has a first position and a second position. When the retainer is in the first position, the second mating part is disengaged from the first mating part. When the retainer is in the second position, the second mating part is locked to the first mating part.

[0008] A pedal assembly in which, when the retainer is in the first position, a force is applied to the pedal assembly along a first direction, causing the retainer to move from the first position to a second position; and when the retainer is in the second position, a force is applied to the pedal assembly along the first direction, causing the retainer to move from the second position to the first position; and

[0009] The first reset component constantly causes the pedal assembly to move in the opposite direction to the first direction.

[0010] In the aforementioned braking mechanism, when braking is required, only a force in the first direction needs to be applied to the pedal assembly, such as when the user performs a pressing action. The retaining member then moves from the first position to the second position, locking the second mating part with the first mating part, thus putting the wheel hub and mounting bracket in a braking state. Next, the pedal assembly can be reset by moving in the opposite direction of the first direction under the action of the first reset member. Therefore, when unlocking is required, only a force in the first direction needs to be applied to the pedal assembly again, such as when the user performs a pressing action. The retaining member then moves from the second position to the first position, disengaging the first mating part from the second mating part, thus releasing the wheel hub and mounting bracket. Next, the pedal assembly can be reset by moving in the opposite direction of the first direction under the action of the first reset member. Therefore, in this braking mechanism, both braking and unlocking only require pressing the brake pedal, making operation convenient and preventing scratches to the user's shoes.

[0011] In one embodiment, the pedal assembly includes a pedal body and a drive ramp connected to each other. When the retainer is in the first position, it applies a force along a first direction to the pedal body, and the drive ramp moves along the first direction and drives the second mating part to lock into the first mating part.

[0012] In one embodiment, the retainer is movably disposed on the fixed base, and the moving direction of the retainer is intersecting with the moving direction of the second mating part. When the retainer is in the second position, the retainer acts on the second mating part, causing the second mating part to move toward the first mating part.

[0013] In one embodiment, the braking mechanism further includes a second reset member, which constantly moves the retaining member toward the second position.

[0014] In one embodiment, the pedal assembly includes a pedal body and a first abutting portion connected to each other, and the retainer has a second abutting structure, wherein when the retainer is in the second position, the first abutting portion abuts against the second abutting structure.

[0015] In one embodiment, the pedal assembly further includes a rotating frame connected to the pedal body, the rotating frame being rotatably mounted on the fixed base, the first abutting part being disposed on the rotating frame, and the rotating frame also having a driving inclined surface, the driving inclined surface being spaced apart from the first abutting part. When the retaining member is in the first position, it applies a force along a first direction to the pedal body, and the driving inclined surface moves along the first direction and drives the second mating part to lock into engagement with the first mating part.

[0016] In one embodiment, the first mating part is a brake hole provided on the wheel hub, and the second mating part is a brake pin movably provided on the fixed seat, wherein the brake pin can be inserted into the brake hole.

[0017] In one embodiment, the braking mechanism further includes a drive member disposed at the end of the brake pin away from the brake hole, and when the retainer is in the second position, the retainer pushes against the end of the drive member away from the brake hole.

[0018] In one embodiment, the braking mechanism further includes a third reset member, which is sleeved outside the brake pin, and both ends of the third reset member abut against the fixed seat and the driving member, respectively.

[0019] In one embodiment, the brake pin is provided with a guide post, the drive member is provided with a guide groove, and the guide post is inserted into the guide groove and can slide along the guide groove.

[0020] In one embodiment, the braking mechanism further includes a fourth reset member, the driving member has a receiving groove, the brake pin is movably disposed in the receiving groove, and the two ends of the fourth reset member abut against the brake pin and the bottom of the receiving groove, respectively.

[0021] In one embodiment, the braking mechanism further includes an indicator component, which is in a first indicating state when the retainer is in the first position and in a second indicating state when the retainer is in the second position.

[0022] In one embodiment, the braking mechanism further includes a cover disposed on the mounting base, and the indicating component includes an indicating window and an indicating element disposed on the cover. The indicating element is fixed to the retainer and has a first indicating area and a second indicating area. When the retainer is in the first position, the first indicating area is aligned with the indicating window, and when the retainer is in the second position, the second indicating area is aligned with the indicating window.

[0023] An infant vehicle includes a wheel assembly having the aforementioned braking mechanism.

[0024] In one embodiment, the infant vehicle further includes a linkage, and there are two wheel assemblies, each of which is equipped with the braking mechanism. The two ends of the linkage are respectively connected to the pedal assemblies of the two wheel assemblies. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an infant carrier according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the infant vehicle shown from another perspective;

[0027] Figure 3 for Figure 2 The magnified view of point A, which is the magnified view of the right rear wheel assembly of the infant vehicle;

[0028] Figure 4 for Figure 3 A partial structural diagram;

[0029] Figure 5 for Figure 3 Another partial structural diagram;

[0030] Figure 6 for Figure 4 The structural diagram of the cover is omitted. At this time, the retainer is in the first position, the wheel assembly is in the unlocked state, and the pedal assembly is in the unpressed state.

[0031] Figure 7 for Figure 6 Enlarged view of point B;

[0032] Figure 8 for Figure 4 Another structural diagram omitting the cover shows the retainer in the second position, the wheel assembly in the locked state, and the pedal assembly in the stepped state.

[0033] Figure 9 for Figure 8 A structural diagram from another perspective;

[0034] Figure 10 for Figure 4 Another structural diagram omitting the cover shows the retainer in the second position, the wheel assembly in the locked state, and the pedal assembly in the unstepped state.

[0035] Figure 11 for Figure 10 A partial sectional view;

[0036] Figure 12 for Figure 10 A schematic diagram of the structure of the fixed base;

[0037] Figure 13 for Figure 10 A schematic diagram of the locking component in the diagram;

[0038] Figure 14 for Figure 13 A cross-sectional view of the locking component in the image;

[0039] Figure 15 for Figure 10 A schematic diagram of the pedal assembly in the diagram;

[0040] Figure 16 for Figure 15 The diagram shows the structure of the pedal assembly from another perspective;

[0041] Figure 17 for Figure 10 A schematic diagram of the retainer structure;

[0042] Figure 18 for Figure 10 A schematic diagram of the structure of the decorative cover;

[0043] Figure 19 for Figure 4 The structural diagram omitting the cover and mounting base shows the pedal in the middle position, with the drive component abutting against the drive ramp.

[0044] Figure 20 for Figure 4 Another structural diagram omitting the cover and mounting base shows the pedal in the step position, with the drive unit abutting against the second plane.

[0045] Figure 21 for Figure 20 A structural diagram from another perspective;

[0046] Figure 22 for Figure 4 Another structural diagram omitting the cover and the mounting base shows the pedal in its initial position, with the end of the drive member away from the brake hole pressed against by the retainer and opposite to the first plane;

[0047] Figure 23 for Figure 4 Another structural diagram omitting the cover shows the pedal in its initial position, the retainer in its first position, the right rear wheel assembly in its unlocked state, and the pedal assembly in its unpressed state.

[0048] Figure 24 for Figure 23 A structural diagram from another perspective;

[0049] Figure 25 for Figure 4 Another structural diagram omitting the trim cover shows the pedal in the middle position, with the drive unit abutting against the drive ramp.

[0050] Figure 26 for Figure 4 Another structural diagram omitting the trim cover shows the pedal in the stepped position, the retainer in the second position, and the right rear wheel assembly in the locked state.

[0051] Figure 27 for Figure 26A structural diagram from another perspective;

[0052] Figure 28 for Figure 4 Another structural diagram omitting the trim cover shows the pedal in its original position, the retainer in its second position, and the right rear wheel assembly in a locked state.

[0053] Figure 29 for Figure 3 A schematic diagram of the braking mechanism of the left rear wheel assembly of the infant vehicle shown.

[0054] Figure 30 for Figure 3 The diagram shows the braking linkage principle of the left and right rear wheel assemblies of the infant vehicle. At this time, the pedal is in the initial position, the retainers of the left and right rear wheel assemblies are both in the first position, and the left and right rear wheel assemblies are both in the unlocked state.

[0055] Figure 31 for Figure 30 A structural diagram from another perspective;

[0056] Figure 32 for Figure 3 The diagram shows the braking linkage principle of the left and right rear wheel assemblies of the infant vehicle. At this time, the pedal is in the stepped position, the retainer is in the second position, and both the left and right rear wheel assemblies are in the locked state.

[0057] Explanation of reference numerals in the attached figures

[0058] 10. Frame; 20. Wheel assembly; 21. Wheel body; 22. Braking mechanism; 100. Hub; 110. Brake hole; 120. Pivot shaft; 200. Mounting base; 210. Pivot hole; 220. Mounting slot; 221. Through hole; 300. Locking assembly; 310. Drive element; 311. Receiving slot; 312. Guide slot; 320. Brake pin; 321. Guide post; 330. Third reset element; 340. Fourth reset element; 400. Pedal assembly; 410. Pedal body; 411. Pedal surface; 420. Rotating frame; 421. Mounting hole; 430. Drive ramp; 440. First push structure; 44 1. Pushing body; 442. First pushing part; 451. First plane; 452. Second plane; 500. Holding member; 510. Holding frame; 520. First pressing part; 530. Second pressing part; 540. Connecting part; 550. Second pushing structure; 551. Second pushing body; 552. Protective cover; 610. First reset member; 620. Second reset member; 700. Decorative cover; 800. Indicator assembly; 810. Indicator window; 820. Indicator; 821. First indicator area; 822. Second indicator area; 900. Connecting member; 30. Linking member; 101. First mating part; 102. Second mating part. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0060] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] like Figure 1As shown, one embodiment of the present invention provides an infant vehicle, such as a stroller, which can be braked and unlocked simply by stepping on the brake pedal, making it easy to operate and preventing scratches to the user's shoes.

[0063] like Figure 1 and Figure 2 As shown, the infant carrier includes a frame 10, multiple wheel assemblies 20 disposed at the bottom of the frame 10, and a linkage 30. In this embodiment, the infant carrier has four wheel assemblies 20, namely a left front wheel assembly 20, a right front wheel assembly 20, a left rear wheel assembly 20, and a right rear wheel assembly 20. The left and right rear wheel assemblies 20 each include a wheel body 21 and a braking mechanism 22. The two ends of the linkage 30 are respectively connected to the braking mechanisms 22 of the left and right rear wheel assemblies 20, so as to simultaneously engage or disengage the two braking mechanisms 22. In this embodiment, the linkage 30 is a steel wire. Of course, in other embodiments, the linkage 30 can also be other linkage structures.

[0064] Of course, in other embodiments, the wheel assembly 20 may be provided with more or fewer than four as needed, and the braking mechanism 22 may be provided in the left front wheel assembly 20 or the right front wheel assembly 20 as needed.

[0065] Specifically, taking the right rear wheel assembly 20 as an example, its braking mechanism 22 will be explained:

[0066] like Figure 3 , Figures 6 to 8 and Figure 11 As shown, the braking mechanism 22 includes a wheel hub 100, a mounting base 200, a locking assembly 300, a pedal assembly 400, a retainer 500, a first reset member 610, a second reset member 620, a cover 700, and an indicator assembly 800.

[0067] Furthermore, such as Figure 5 As shown, the wheel body 21 is fitted onto the outside of the wheel hub 100. Multiple brake holes 110 are evenly distributed circumferentially around the approximate center of the wheel hub 100, and a pivot shaft 120 is located at the center of the wheel hub 100. In another embodiment, the wheel hub 100 has only one brake hole 110. Figure 3 , Figure 6 and Figure 12 As shown, the mounting base 200 is generally cylindrical and is connected to the bottom end of the frame 10 via a connector 900. In this embodiment, the mounting base 200 and the connector 900 are integrally formed. Of course, in other embodiments, the mounting base 200 and the connector 900 can also be two independent components. The mounting base 200 has a pivot hole 210 at its center that mates with the pivot shaft 120. Figure 11As shown, the mounting base 200 has a mounting groove 220 extending axially along the mounting base 200 at a position off-center, and the bottom of the mounting groove 220 has a through hole 221.

[0068] Furthermore, such as Figure 11 , Figure 13 and Figure 14 As shown, the locking assembly 300 is movably mounted on the fixed base 200. The locking assembly 300 includes a driving member 310, a brake pin 320, a third reset member 330, and a fourth reset member 340. The driving member 310 is generally cylindrical in shape and has a receiving groove 311. The brake pin 320 is movably mounted in the receiving groove 311. The two ends of the fourth reset member 340 abut against the bottom of the brake pin 320 and the receiving groove 311, respectively. Specifically, the brake pin 320 has a guide post 321, and the side wall of the receiving groove 311 has a guide groove 312. The guide post 321 is inserted into the guide groove 312 and can slide along the guide groove 312. In this way, the driving member 310 and the brake pin 320 can be slidably connected, so as to provide a certain buffer when the brake pin 320 is inserted into the brake hole 110, and avoid the brake pin 320 from accidentally breaking due to misalignment during the insertion process. Furthermore, the end of the brake pin 320 furthest from the drive member 310 can pass through the through hole 221 out of the fixing seat 200 and connect with the brake hole 110 (e.g., Figure 5 (As shown) Insertion and engagement. This achieves a locking engagement between the fixed seat 200 and the wheel hub 100, thus enabling braking of the wheel assembly 20. The third reset member 330 is sleeved outside the brake pin 320 and located outside the drive member 310, with both ends of the third reset member 330 abutting against the bottom of the mounting groove 220 and the end face of the drive member 310, respectively. The third reset member 330 causes the drive member 310 to move constantly away from the brake hole 110, thereby causing the brake pin 320 to move constantly away from the brake hole 110. In this embodiment, both the third reset member 330 and the fourth reset member 340 are springs.

[0069] Of course, in other embodiments, the brake pin 320 and brake hole 110 can be replaced with other mating structures, such as a convex-concave mating, a hook-ring mating, etc. Furthermore, in other embodiments, the positions of the brake pin 320 and brake hole 110 can be interchanged.

[0070] Specifically, such as Figure 6 , Figure 9 , Figure 15 and Figure 16As shown, the pedal assembly 400 includes an interconnected pedal body 410, a rotating frame 420, and a first abutment structure 440. In this embodiment, the pedal body 410, the rotating frame 420, and the first abutment structure 440 are integrally formed. In other embodiments, the pedal body 410, the rotating frame 420, and the first abutment structure 440 may also be independent structures. The rotating frame 420 is generally an annular structure that matches the cross-section of the fixed base 200, and the rotating frame 420 is rotatably disposed on the side of the fixed base 200 facing away from the hub 100. Figure 16 As shown, the rotating frame 420 has a first plane 451, a driving inclined surface 430, and a second plane 452 connected in sequence on the side facing the fixed base 200. The first plane 451 is away from the fixed base 200 relative to the second plane 452. The pedal body 410 extends outside the fixed base 200 and rotates together with the rotating frame 420. The pedal body 410 has a footing surface 411 facing away from the ground. The pedal body 410 has an initial position, a middle position, and a footing position. Figure 23 As shown, the position of the pedal body 410 when it is not under force is its original position; as Figure 26 As shown, the position of the pedal body 410 when it is pressed down is the pressing position; as Figure 25 As shown, the middle position is located between the original position and the stepping position. Figures 19 to 23 As shown, the driving ramp 430 can press against the end of the driving member 310 away from the brake hole 110, so that the driving member 310 drives the brake pin 320 to move towards the brake hole 110. The rotating frame 420 is also provided with a first pushing structure 440 spaced apart from the driving ramp 430. The first pushing structure 440 includes a pushing body 441 and a first pushing part 442 fixed on the pushing body 441. The pushing body 441 has a certain elastic deformation capability.

[0071] Furthermore, such as Figure 1 , Figure 16 as well as Figures 29 to 31 As shown, the rotating frame 420 is provided with mounting holes 421, and the two ends of the linkage 30 are respectively fixed to the mounting holes 421 on the left rear wheel assembly 20 and the right rear wheel assembly 20. In this way, by simply stepping on the pedal body 410 of the right rear wheel assembly 20, the left rear wheel assembly 20 and the right rear wheel assembly 20 can be braked and unlocked simultaneously.

[0072] Furthermore, such as Figure 6 and Figure 17As shown, the retaining member 500 is movably disposed on the side of the fixed base 200 facing away from the hub 100 and located in the middle of the rotating frame 420. The moving direction of the retaining member 500 intersects with the moving direction of the locking assembly 300. The retaining member 500 includes a retaining frame 510, a first pressing part 520, a second pressing part 530, a connecting part 540, and a second pushing structure 550. In this embodiment, the retaining frame 510, the first pressing part 520, the second pressing part 530, the connecting part 540, and the second pushing structure 550 are integrally formed. In other embodiments, the retaining frame 510, the first pressing part 520, the second pressing part 530, the connecting part 540, and the second pushing structure 550 may also be independent components. The retaining frame 510 is generally square in shape. A first pressing part 520 and a second pressing part 530 are respectively located on opposite first and second sides of the retaining frame 510. The first pressing part 520 can abut against the side wall of the driving member 310 or the end of the driving member 310 away from the brake hole 110. The two ends of the second reset member 620 abut against the rotating frame 420 and the second pressing part 530, respectively. A connecting part 540 is located on the third side of the retaining frame 510, adjacent to both the first and second sides. A second pushing structure 550 is located on the fourth side of the retaining frame 510, near the second side, opposite to the third side. Optionally, as... Figure 20 and Figure 22 As shown, the second pushing structure 550 may include a second pushing part 551 and a protective sleeve 552 sleeved over the second pushing part 551. The protective sleeve 552 is made of a cushioning material such as rubber, which can prevent the second pushing part 551 from directly contacting the first pushing part 442 and causing wear. Of course, in other embodiments, the positions of the first pressing part 520, the second pressing part 530, the connecting part 540, and the second pushing structure 550 can also be adjusted according to actual needs.

[0073] Furthermore, retainer 500 has a first position and a second position. For example... Figure 6 and Figure 11 As shown, when the retainer 500 is in the first position, the first pressing part 520 pushes against the side wall of the drive member 310. Under the elastic restoring force of the third reset member 330, the drive member 310 is in a position relatively far away from the brake hole 110, and the brake pin 320 remains disengaged from the brake hole 110. Figure 10 As shown, when the retainer 500 is in the second position, the first pressing part 520 at least partially blocks the end of the drive member 310 away from the brake hole 110 to prevent the brake pin 320 from moving away from the brake hole 110, and the brake pin 320 maintains a locked engagement with the brake hole 110. The second reset member 620 causes the retainer 500 to move constantly to the second position.

[0074] Furthermore, such as Figure 6 , Figure 8 and Figure 10 As shown, the two ends of the first reset member 610 abut against the fixed base 200 and the rotating frame 420 respectively, and the first reset member 610 constantly causes the pedal assembly 400 to move in the opposite direction of the first direction F1. In this embodiment, both the first reset member 610 and the second reset member 620 are springs. In this embodiment, the first direction F1 is... Figure 6 , Figure 8 and Figure 10 The clockwise direction in the middle.

[0075] Furthermore, such as Figure 6 As shown, when the retainer 500 is in the first position and the first plane 451 is opposite to the drive member 310, a force F1 is applied to the pedal surface 411 of the pedal body 410 in the first direction, corresponding to... Figure 6 For stepping down on the tread surface 411. For example... Figure 8 As shown, at this time, the rotating frame 420 will rotate clockwise, causing the driving inclined surface 430 to push against the driving member 310. The driving member 310 drives the brake pin 320 to move closer to the brake hole 110, and the brake pin 320 is inserted into the brake hole 110. At the same time, the retaining member 500, which was originally pushing against the side wall of the driving member 310, moves to the second position closer to the driving member 310 under the action of the second reset member 620, so that the first pressing part 520 presses against the end of the driving member 310 away from the brake hole 110, as shown. Figure 11 As shown, the brake pin 320 and the brake hole 110 are locked together.

[0076] like Figure 10 As shown, when the retainer 500 is in the second position, the first pushing part 442 abuts against the second pushing structure 550. At this time, a force F1 is applied to the pedal surface 411 of the pedal body 410 in the first direction. The first pushing part 442 on the rotating frame 420 pushes against the second pushing structure 550 on the retainer frame 510, causing the retainer 500 to move to the first position in a direction away from the drive member 310. The drive member 310, having lost the force of the first pressing part 520, moves the brake pin 320 away from the brake hole 110 under the action of the third reset member 330, and the brake pin 320 remains disengaged from the brake hole 110. Figure 6 As shown.

[0077] Furthermore, such as Figure 3 and Figure 18 As shown, the cover 700 is placed on the side of the fixed seat 200 facing away from the hub 100. The cover 700 and the fixed seat 200 form a receiving space. The retainer 500, the rotating frame 420, the first pushing structure 440, the first reset member 610 and the second reset member 620 are all located in the receiving space.

[0078] Specifically, such as Figure 6 and Figure 7 As shown, the indicator assembly 800 includes an indicator window 810 and an indicator 820 disposed on the cover 700. The indicator 820 is fixed to the connecting portion 540, meaning the indicator 820 moves with the retainer 500. The indicator 820 has a first indicator area 821 and a second indicator area 822. For example, the first indicator area 821 may have a green marker, and the second indicator area 822 may have a red marker. When the retainer 500 is in the first position, the first indicator area 821 is aligned with the indicator window 810, meaning the green marker is aligned with the indicator window 810, indicating that the wheel assembly 20 has been released. When the retainer 500 is in the second position, the second indicator area 822 is aligned with the indicator window 810, indicating that the wheel assembly 20 has been braked. This allows the user to easily determine the braking status of the wheel assembly 20, improving the safety performance of the infant vehicle. Of course, other forms of indicator assemblies 800 may be used in other embodiments.

[0079] like Figures 29 to 31 As shown, the braking mechanism 22 of the left rear wheel assembly 20 is generally similar to that of the right rear wheel assembly 20. The difference is that the pedal assembly 400 of the braking mechanism 22 of the left rear wheel assembly 20 does not have a pedal body 410, but only a rotating frame 420 and a first pushing structure 440.

[0080] The specific working principle of the above-mentioned infant carrier is as follows:

[0081] like Figure 23 and Figure 24 As shown, the retainer 500 is in the first position, the right rear wheel assembly 20 is in the unlocked state, the brake pin 320 is disengaged from the brake hole 110, the pedal body 410 is in its original position, and the first plane 451 on the rotating frame 420 is opposite to the drive member 310. When braking is required, the user presses the pedal surface 411, that is, applies a force along the first direction F1 to the pedal body 410, the pedal assembly 400 rotates as a whole along the first direction F1, and the first reset member 610 is compressed, as... Figure 25 As shown, the pedal body 410 is in the middle position at this time, and the first pushing part 442 passes over the second pushing structure 550 from the right side to the left side of the second pushing structure 550. The driving ramp 430 located on the rotating frame 420 pushes the driving member 310, as shown. Figure 9 As shown, the drive member 310 moves the brake pin 320 towards the brake hole 110 until the brake pin 320 is inserted into the brake hole 110, and the right rear wheel assembly 20 is in a braking state. At this time, the third reset member 330 is compressed, and the second indicator area 822 is aligned with the indicator window 810. Simultaneously, as... Figure 11 and Figure 25As shown, as the drive member 310 moves towards the brake hole 110, the retaining member 500, which was originally abutting against the side wall of the drive member 310, moves towards the drive member 310 under the action of the second reset member 620, that is, moves in the second direction F2, until the first pressing part 520 presses against the end of the drive member 310 away from the brake hole 110, so that the brake pin 320 and the brake hole 110 are kept in a locked engagement state. Figure 26 and Figure 27 As shown, the pedal body 410 is in the stepped position at this time, and the second plane 452 on the rotating frame 420 is opposite to the drive member 310. When the user stops stepping on the foot surface 411, that is, when the force applied to the pedal body 410 is removed, the pedal assembly 400 rotates in the opposite direction of the first direction F1 under the elastic force of the first reset member 610, and the pedal body 410 returns to its original position, with the first plane 451 on the rotating frame 420 opposite to the drive member 310, as shown. Figure 28 As shown. When the pedal assembly 400 returns to its original position, the pushing force of the pushing body 441 is insufficient to move the second pushing structure 550. Therefore, the first pushing part 442 moves from the left side of the second pushing structure 550 past the second pushing structure 550 to the right side of the second pushing structure 550 without changing the position of the retaining member 500, thus keeping the right rear wheel assembly locked. Meanwhile, as... Figures 30 to 32 As shown, when the pedal assembly 400 of the right rear wheel assembly 20 performs the aforementioned action, it drives the brake mechanism 22 of the left rear wheel assembly 20 to rotate in the opposite direction via the linkage 30, thereby causing other similar components on the brake mechanism 22 of the left rear wheel assembly 20 to move and change from an unlocked rotation state to a locked state. For example, when Figure 30 When the pedal assembly 400 of the right rear wheel assembly 20 is subjected to force and rotates in the first direction F1, the rotating frame 420 of the left rear wheel assembly 20 rotates in the third direction F3 under the traction of the linkage 30.

[0082] like Figure 28As shown, when the wheel assembly 20 needs to be unlocked again, the user steps on the pedal surface 411 to the pedal position, that is, applies a force along the first direction F1 to the pedal body 410. The pedal assembly 400 rotates as a whole along the first direction F1, and the first reset member 610 is compressed. The first abutting part 442 on the rotating frame 420 abuts against the second abutting structure 550 on the retaining member 500, so that the retaining member 500 moves as a whole away from the driving member 310, that is, in the opposite direction of the second direction F2, to the first position, and the second reset member 620 is compressed. The driving member 310, which loses the force of the first abutting part 520, moves the brake pin 320 away from the brake hole 110 under the elastic force of the third reset member 330 until the brake pin 320 is disengaged from the brake hole 110, the wheel assembly 20 is in the unlocked state, and the first indicator area 821 is aligned with the indicator window 810. When the user stops pressing on the pedal surface 411, i.e., the force applied to the pedal body 410 is removed, the pedal assembly 400 rotates in the opposite direction of the first direction F1 under the elastic force of the first reset member 610, and the pedal body 410 returns to its original position. Figure 23 As shown. At this time, since the driving member 310 has returned to the unlocked state away from the brake hole 110 under the action of the third reset member 330, the retaining member 500 moves towards the driving member 310 under the action of the second reset member 620. The first pressing part 520 abuts against the side wall of the driving member 310, that is, the retaining member 500 is in the first position. Therefore, the brake pin 320 and the brake hole 110 remain in the disengaged state. At this time, since the first pressing part 520 abuts against the side wall of the driving member 310, the retaining member 500 is in the first position relatively to the left. Therefore, compared with the second position where the retaining member 500 is in the second position relatively to the right, the distance between the second pressing structure 550 on the retaining member 500 and the first pressing part 442 on the rotating frame 420 is greater. Thus, when braking is required again and the brake body is pressed, the first abutting part 442 will pass over the second abutting structure 550 instead of abutting it. This allows the first pressing part 520 to press against the end of the drive member 310 away from the brake hole 110 again after the drive ramp 430 acts on the drive member 310, preventing the brake pin 320 from moving away from the brake hole. Similarly, the brake mechanism 22 of the left rear wheel assembly 20, driven by the linkage 30, achieves the transition from the locked state to the unlocked state through a similar structure.

[0083] The aforementioned braking mechanism 22, through its ingenious structural design, allows the wheel assembly 20 to be braked and unlocked simply by stepping on the pedal body 410. After braking or unlocking, it has corresponding structures, such as the retaining member 500, to keep the wheel assembly 20 in the braking or unlocking state. The pedal body 410 can be restored to a relatively high, step-available position under the action of the first reset member 610, without affecting the braking or unlocking state of the wheel assembly 20.

[0084] The aforementioned braking mechanism 22 and infant vehicle have at least the following beneficial effects:

[0085] In the aforementioned braking mechanism 22, when braking is required, a force F1 is applied to the pedal assembly 400 in the first direction, for example, when the user performs a pedaling action. The retaining member 500 moves from the first position to the second position, causing the second mating part 102 to maintain a locked engagement with the first mating part 101 (the brake pin 320 and brake hole 110 in this embodiment), thus putting the wheel hub 100 and the fixed seat 200 in a braking state. Then, the pedal assembly 400 can be reset by moving in the opposite direction of the first direction F1 under the action of the first reset member 610. Therefore, when unlocking is required, a force F1 is applied to the pedal assembly 400 again in the first direction, for example, when the user performs a pedaling action. The retaining member 500 moves from the second position to the first position, causing the first mating part 101 to disengage from the second mating part 102 (the brake hole 110 and brake pin 320 in this embodiment), thus putting the wheel hub 100 and the fixed seat 200 in an unlocked state. Next, the pedal assembly 400 can be moved and reset in the opposite direction of the first direction F1 under the action of the first reset member 610. Therefore, in this braking mechanism 22, whether braking or releasing, only the brake pedal needs to be stepped on, which is convenient to operate and will not scratch the user's shoes.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0087] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A brake mechanism (22) characterized by, include: The hub (100) is provided with a first mating part (101); A fixing seat (200) is fixed to the hub (100), and the fixing seat (200) is provided with a second mating part (102) that can lock and engage with the first mating part (101). The retainer (500) has a first position and a second position. When the retainer (500) is in the first position, the second mating part (102) is disengaged from the first mating part (101). When the retainer (500) is in the second position, the second mating part (102) is locked to the first mating part (101). The moving direction of the retainer (500) is intersected with the moving direction of the second mating part (102). When the retainer (500) is in the first position, a force is applied to the pedal assembly (400) in a first direction, and the retainer (500) moves from the first position to the second position; when the retainer (500) is in the second position, a force is applied to the pedal assembly (400) in the first direction, and the retainer (500) moves from the second position to the first position. and The first reset component (610) constantly causes the pedal assembly (400) to move and reset in the opposite direction of the first direction.

2. The brake mechanism (22) according to claim 1, characterized in that The pedal assembly (400) includes a pedal body (410) and a drive ramp (430) connected to each other. When the retainer (500) is in the first position, it applies a force along a first direction to the pedal body (410), and the drive ramp (430) moves along the first direction and drives the second mating part (102) to lock into engagement with the first mating part (101).

3. The braking mechanism (22) according to claim 1, characterized in that, The retainer (500) is movably disposed on the fixed base (200). When the retainer (500) is in the second position, the retainer (500) acts on the second mating part (102), causing the second mating part (102) to move toward the first mating part (101).

4. The braking mechanism (22) according to claim 1, characterized in that, It also includes a second reset member (620), which constantly moves the retainer (500) to the second position.

5. The braking mechanism (22) according to claim 1, characterized in that, The pedal assembly (400) includes a pedal body (410) and a first abutment (442) connected to each other. The retainer (500) has a second abutment structure (550). When the retainer (500) is in the second position, the first abutment (442) abuts against the second abutment structure (550).

6. The braking mechanism (22) according to claim 5, characterized in that, The pedal assembly (400) further includes a rotating frame (420) connected to the pedal body (410). The rotating frame (420) is rotatably mounted on the fixed seat (200). The first abutting part (442) is mounted on the rotating frame (420). The rotating frame (420) is also provided with a driving inclined surface (430). The driving inclined surface (430) is spaced apart from the first abutting part (442). When the retaining member (500) is in the first position, it applies a force along the first direction to the pedal body (410). The driving inclined surface (430) moves along the first direction and drives the second mating part (102) to lock into the first mating part (101).

7. The braking mechanism (22) according to any one of claims 1-6, characterized in that, The first mating part (101) is a brake hole (110) provided on the hub (100), and the second mating part (102) is a brake pin (320) movably provided on the fixed seat (200). The brake pin (320) can be inserted and mated with the brake hole (110).

8. The braking mechanism (22) according to claim 7, characterized in that, It also includes a drive member (310), which is located at the end of the brake pin (320) away from the brake hole (110). When the retainer (500) is in the second position, the retainer (500) pushes against the end of the drive member (310) away from the brake hole (110).

9. The braking mechanism (22) according to claim 8, characterized in that, It also includes a third reset member (330), which is sleeved on the brake pin (320), and the two ends of the third reset member (330) abut against the fixed seat (200) and the driving member (310) respectively.

10. The braking mechanism (22) according to claim 8, characterized in that, The brake pin (320) is provided with a guide post (321), and the drive member (310) is provided with a guide groove (312). The guide post (321) is inserted into the guide groove (312) and can slide along the guide groove (312).

11. The braking mechanism (22) according to claim 8, characterized in that, It also includes a fourth reset member (340), the drive member (310) is provided with a receiving groove (311), the brake pin (320) is movably disposed in the receiving groove (311), and the two ends of the fourth reset member (340) abut against the bottom of the brake pin (320) and the receiving groove (311) respectively.

12. The braking mechanism (22) according to any one of claims 1-6, characterized in that, It also includes an indicator component (800), which is in a first indicator state when the retainer (500) is in the first position, and in a second indicator state when the retainer (500) is in the second position.

13. The braking mechanism (22) according to claim 12, characterized in that, It also includes a cover (700) which covers the fixing base (200). The indicator assembly (800) includes an indicator window (810) and an indicator (820) disposed on the cover (700). The indicator (820) is fixed to the retainer (500). The indicator (820) has a first indicator area (821) and a second indicator area (822). When the retainer (500) is in the first position, the first indicator area (821) is aligned with the indicator window (810). When the retainer (500) is in the second position, the second indicator area (822) is aligned with the indicator window (810).

14. An infant carrier, characterized in that, Includes a wheel assembly (20), which is provided with a braking mechanism (22) as claimed in any one of claims 1-13.

15. The infant carrier according to claim 14, characterized in that, It also includes a linkage (30), there are two wheel assemblies (20), both wheel assemblies (20) are provided with the brake mechanism (22), and the two ends of the linkage (30) are respectively connected to the pedal assembly (400) of the two wheel assemblies (20).

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