Brake mechanism and baby carriage

Abstract

The utility model discloses a brake mechanism and a baby carriage, and relates to the technical field of baby carriages, the brake mechanism comprises a locking piece, a wheel seat used for being movably installed on a wheel assembly, and a wheel body used for locking and unlocking the wheel assembly; the driving structure is movably arranged on the wheel seat, is jointed with the locking piece and is used for driving the locking piece to move so as to lock the wheel body; the wheel assembly is of a universal wheel structure or a directional wheel structure. According to the brake mechanism, the locking piece is arranged on the wheel seat of the wheel assembly, the driving structure is movably arranged on the wheel seat and used for driving the locking piece to move so as to lock the wheel body, when the brake mechanism is applied to the baby carriage, external force can act on the driving structure, and then the locking piece is driven to move; and switching of two different motion states of locking and unlocking is carried out, operation switching of braking and braking unlocking of the baby carriage is achieved, and the operation convenience of braking and braking unlocking of the baby carriage is improved.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, and in particular to a braking mechanism and a children's vehicle. Background Technology

[0002] The braking system is an important device to ensure the safety of children when using strollers. It can effectively prevent strollers from going out of control due to accidents or other reasons, thereby reducing the risk of injury to children. A good braking system allows parents to better control the speed and direction of the stroller, especially on roads or uneven ground, and can better maintain the stability and control of the stroller.

[0003] An easy-to-operate braking system makes it more convenient for parents to use the stroller, especially when a quick stop or steering adjustment is needed. However, the braking mechanisms of some existing strollers are not convenient enough for braking and releasing, resulting in a poor braking and releasing experience during use and hindering the stroller's usability. Utility Model Content

[0004] The main purpose of this utility model is to propose a braking mechanism and a children's stroller, which aims to improve the ease of operation of braking and releasing the brakes on the stroller.

[0005] To achieve the above objectives, the braking mechanism proposed in this utility model includes:

[0006] A locking element, movably mounted on the wheel seat of a wheel assembly, for locking and unlocking the wheel body of the wheel assembly;

[0007] A drive structure is movably disposed on the wheel seat and engages with the locking member to drive the locking member to move and lock the wheel body;

[0008] The wheel assembly is either a swivel wheel structure or a directional wheel structure.

[0009] In one embodiment, the wheel assembly is a swivel wheel structure, and the wheel assembly includes a rotating shaft, which is rotatably mounted on the frame about a first axis extending in a first direction;

[0010] The drive structure is connected to the rotating shaft and rotates with the rotating shaft.

[0011] In one embodiment, the drive structure is coaxially arranged with the rotation shaft;

[0012] The rotating shaft has a receiving cavity arranged along the extending direction of the first shaft, and the driving structure is movably disposed within the receiving cavity; and / or,

[0013] The drive structure includes a movable component and a traction component disposed between the movable component and the locking component;

[0014] The movable component is connected to the rotating shaft and rotates with the rotating shaft.

[0015] In one embodiment, the braking mechanism further includes an operating element movably disposed on the wheel seat or the frame for actuating the drive structure;

[0016] The operating element acts on the driving structure along a second direction to move the driving structure, wherein the second direction intersects the first direction; or...

[0017] The operating element acts on the drive structure along the first direction to make the drive structure move.

[0018] In one embodiment, the drive structure includes a movable member and a first traction member disposed between the movable member and the locking member;

[0019] The drive structure further includes a second elastic element, which is disposed between the movable element and the wheel seat, and is used to drive the movable element to move away from the locking element.

[0020] The drive structure further includes a third elastic element, one end of which is connected to the locking element and the other end of which is connected to the wheel seat, for pushing the locking element toward the wheel body;

[0021] The elastic force of the third elastic element is less than that of the second elastic element;

[0022] The first traction component includes a first traction rope.

[0023] In one embodiment, the frame includes a cross brace, and the operating member further includes a transmission structure connected to the operating member, the transmission structure being movable relative to the cross brace for moving the operating member toward a direction closer to the wheel.

[0024] The transmission structure includes a sliding component and a first elastic element. The sliding component is slidably disposed on the cross brace along a second direction. The first elastic element connects the cross brace and the sliding component. The transmission structure has a first mating part at one end near the movable component, and the first mating part is configured as a first inclined surface. The upper end of the movable component has a second mating part, and the second mating part is configured as a second inclined surface. The second mating part mates with the first mating part. The upper end of the movable component has second inclined surfaces along its circumference, so that the upper end of the movable component is tapered.

[0025] or,

[0026] The transmission structure includes a second traction member connected to the movable member. The second traction member is used to drive the movable member to move toward the wheel body during movement, so that the locking member locks the wheel body.

[0027] In one embodiment, the operating component further includes a foot pedal, which is movably mounted on the cross brace between a first position and a second position, and the foot pedal is connected to the drive structure via the transmission structure.

[0028] The sliding assembly includes a drive pin. The foot pedal has a slot on one side facing the sliding assembly. The drive pin is slidably disposed in the slot. The slot has a first end and a second end. The depth of the first end is greater than the depth of the second end. The foot pedal is pivotally disposed on one side of the cross brace. When the foot pedal is in the first position, the drive pin abuts against the inner wall of the second end, and the locking member locks the wheel. When the foot pedal is in the second position, the drive pin abuts against the inner wall of the first end, and the locking member unlocks the wheel.

[0029] The braking mechanism further includes a mounting base disposed on the cross brace. The foot pedal includes a rotating part and a foot pedal part. The rotating part is rotatably mounted on the mounting base. When the foot pedal is in a first position, the foot pedal part is located near the lower part of the rotating part. When the foot pedal is in a second position, the foot pedal part is located near the upper part of the rotating part. The rotating part is provided with the strip groove. The transmission pin is used to slide along the strip groove when the rotating part rotates.

[0030] A limit structure is provided between the mounting base and the rotating part;

[0031] The locking member and the transmission structure are provided in two sets. The two sets of locking members are respectively used to install on the wheel seats at both ends of the cross brace. The two sets of transmission structures are respectively provided on both sides of the foot pedal. Each transmission structure drives the foot pedal and each locking member.

[0032] In one embodiment, the operating element includes a foot pedal, which is movably mounted on the cross brace between a first position and a second position, and is connected to the drive structure via the transmission structure.

[0033] The transmission structure further includes a pressure block slidably disposed in the wheel seat, the second traction member includes a second traction rope, one end of the second traction rope is connected to the pressure block, the other end is connected to the foot pedal member, and the pressure block abuts against the upper end of the movable member;

[0034] The transmission structure also includes a fixed pulley rotatably mounted on the wheel seat, and the second traction rope is wound around the fixed pulley to achieve reversal;

[0035] The foot pedal includes a rotating part and a foot pedal part. The rotating part is rotatably mounted on the cross brace, and the foot pedal part is connected to the rotating part. When the foot pedal is in a first position, the foot pedal part is close to the lower part of the rotating part, and when the foot pedal is in a second position, the foot pedal part is close to the upper part of the rotating part.

[0036] The transmission structure further includes a column member connected to the second traction rope. The foot pedal has an inclined groove, and the column member is movably disposed in the inclined groove. The inclined groove has a first end and a second end, with the second end located between the first end and the foot pedal. The first end is close to the locking member, and the second end is away from the locking member. When the locking member is in the first position, the column member is located at the second end, and the locking member locks the wheel. When the locking member is in the second position, the column member is located at the first end, and the locking member unlocks the wheel.

[0037] The cross brace has a horizontal waist groove that extends along the axial direction of the cross brace. The column is also movably disposed in the horizontal waist groove. The horizontal waist groove has a third end near the locking member and a fourth end away from the locking member. When the locking member is in the first position, the column is located at the fourth end. When the locking member is in the second position, the column is located at the third end.

[0038] In one embodiment, the braking mechanism further includes a brake disc for mounting on the wheel body along the axial direction of the wheel body, and a locking member for moving radially along the brake disc to lock or unlock the brake disc, thereby locking or unlocking the wheel body.

[0039] The brake disc has multiple spaced locking grooves on its outer periphery. The locking member has a locking block that protrudes toward the locking groove. The locking block is inserted into the locking groove to lock the brake disc.

[0040] This utility model also proposes a children's stroller, including the braking mechanism described above;

[0041] The stroller also includes a frame and a wheel assembly mounted on the frame. The wheel assembly includes a front wheel assembly and a rear wheel assembly, and at least one of the front wheel assembly and the rear wheel assembly is provided with the braking mechanism.

[0042] At least one of the front wheel assembly and the rear wheel assembly is a swivel wheel structure;

[0043] Both the front wheel assembly and the rear wheel assembly are omnidirectional wheel structures. The frame has a forward-facing use state and a rearward-facing use state. Both the front wheel assembly and the rear wheel assembly are equipped with the braking mechanism.

[0044] The technical solution of this utility model involves setting a locking component for installation on the wheel seat of the wheel assembly to lock and unlock the wheel body of the wheel assembly, and setting a drive structure movably disposed on the wheel seat, engaging with the locking component to drive the locking component to lock the wheel body. When this braking mechanism is applied to a children's vehicle, an external force can be applied to the drive structure, thereby driving the locking component to move and switching between two different motion states of locking and unlocking, realizing the switching of braking and unlocking operations on the children's vehicle, improving the convenience of braking and unlocking operations on the children's vehicle, and thus improving the safety of using the children's vehicle. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0046] Figure 1 A schematic diagram of the structure of an embodiment of the children's stroller provided by this utility model;

[0047] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0048] Figure 3 A schematic diagram of a braking mechanism according to an embodiment of the present invention;

[0049] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0050] Figure 5 for Figure 3 A magnified view of a section at point C;

[0051] Figure 6 for Figure 3 A magnified view of a section at point D;

[0052] Figure 7 A schematic diagram of the braking mechanism in the braking state provided by this utility model;

[0053] Figure 8 for Figure 7 A magnified view of the area at point E;

[0054] Figure 9 for Figure 3 A schematic diagram of the structure of one embodiment of the second slider;

[0055] Figure 10 for Figure 3 A schematic diagram of the structure of one embodiment of the first slider;

[0056] Figure 11 for Figure 3 A schematic diagram of a embodiment of a central transmission pin;

[0057] Figure 12 for Figure 3 A schematic diagram of the structure of one embodiment of the mounting base;

[0058] Figure 13 for Figure 3 A schematic diagram of the structure of one embodiment of the middle foot pedal;

[0059] Figure 14 for Figure 3 A schematic diagram of the structure of one embodiment of the locking component;

[0060] Figure 15 A schematic diagram of another embodiment of the stroller provided by this utility model;

[0061] Figure 16 for Figure 15 A magnified view of the area at point F;

[0062] Figure 17 for Figure 15 A schematic diagram of the braking mechanism at one angle;

[0063] Figure 18 for Figure 17 A magnified view of the area at point G;

[0064] Figure 19 for Figure 15 A schematic diagram of the braking mechanism from another angle;

[0065] Figure 20 for Figure 19 A magnified view of the area at point H.

[0066] Explanation of icon numbers:

[0067] 1000, stroller; 100, brake mechanism; 200, frame; 300, wheel assembly; 301, wheel seat; 3011, protrusion; 302, wheel body; 303, rotating shaft; 3031, accommodating cavity;

[0068] 10. Cross brace; 11. Positioning component; 12. Horizontal groove; 20. Foot pedal; 21. Rotating part; 210. Strip groove; 210a. First end; 210b. Second end; 21a. First half-shell; 21b. Second half-shell; 22. Foot pedal; 221. Slanted groove; 30. Locking component; 31. Locking block; 40. Transmission structure; 41. Sliding assembly; 411. Second slider; 4111. Through groove; 4112. Guide surface; 4113. Mounting post; 4112 1. Third end; 41122. Fourth end; 412. First slider; 4121. First mounting groove; 413. Transmission pin; 4131. First pin segment; 4132. Second pin segment; 42. First elastic element; 43. Second traction element; 44. Pressure block; 45. Column; 46. Fixed pulley; 50. Brake disc; 51. Locking groove; 60. Drive structure; 61. Moving part; 62. Second elastic element; 63. Third elastic element; 64. First traction element; 70. Mounting seat.

[0069] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0070] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0071] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0072] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0073] The braking system is an important device to ensure the safety of children when using strollers. It can effectively prevent strollers from going out of control due to accidents or other reasons, thereby reducing the risk of injury to children. A good braking system allows parents to better control the speed and direction of the stroller, especially on roads or uneven ground, and can better maintain the stability and control of the stroller.

[0074] An easy-to-operate braking system makes it more convenient for parents to use the stroller, especially when a quick stop or steering adjustment is needed. However, the braking mechanisms of some existing strollers are not convenient enough for braking and releasing, resulting in a poor braking and releasing experience during use and hindering the stroller's usability.

[0075] This utility model proposes a braking mechanism that, when applied to children's vehicles, aims to improve the user experience of braking and releasing the brakes.

[0076] Please see Figures 1 to 20 In one embodiment of this utility model, the braking mechanism 100 includes:

[0077] Locking element 30, for being movably mounted on wheel seat 301 of wheel assembly 300, for locking and unlocking wheel body 302 of wheel assembly 300;

[0078] A drive structure 60 is movably disposed on the wheel seat 301 and engages with the locking member 30 to drive the locking member 30 to move and lock the wheel body 302;

[0079] The wheel assembly 300 is either a swivel wheel structure or a directional wheel structure.

[0080] The braking mechanism 100 of this utility model can be applied to the braking system of a children's vehicle 1000. The children's vehicle 1000 includes a frame 200 and multiple wheel assemblies 300. Each wheel assembly 300 may include a wheel seat 301 and a wheel body 302, with the wheel body 302 rotatably mounted on the wheel seat 301. Specifically, a cross brace 10 can be mounted on the frame 200 and near the connection between the frame 200 and the wheel assembly 300. A locking member 30 is disposed on the wheel seat 301 and can move towards or away from the wheel body 302 to brake the wheel body 302 or release the brake by separating from the wheel body 302. A drive structure 60 can be disposed on the wheel seat 301 of the wheel assembly 300 and connected to the locking member 30. The braking mechanism 100 may also include an operating member, which may be disposed on the wheel seat 301, or... It can be set on the frame 200. When the operating member is set on the wheel seat 301, the drive structure 60 can be moved directly on the wheel seat 301 through the operating member, thereby acting on the locking member 30 to perform braking or unlocking operation. When the operating member is set on the frame 200, the operating member may include the foot pedal 20, the cross brace 10 and the transmission structure 40. The cross brace 10 is used to be mounted on the frame 200, and the transmission structure 40 can move relative to the cross brace 10 to make the drive structure 60 move toward or away from the direction close to the wheel 302.

[0081] The transmission structure 40 can be mounted on the cross brace 10. The foot pedal 20 can be oscillatingly mounted around the cross brace 10. When the foot pedal 20 swings toward the first position under the action of an external force, the foot pedal 20 can drive the transmission structure 40 to move away from the foot pedal 20, so that the transmission structure 40 can drive the drive structure 60 to move. This causes the drive structure 60 to drive the locking member 30 to move toward the wheel body 302 of the wheel assembly 300. When the foot pedal 20 moves to the first position, the locking member 30 can move to the position of locking the wheel body 302 to perform brake locking. When the foot pedal 20 swings toward the second position under the action of an external force, the foot pedal 20 no longer applies driving force to the transmission structure 40, so that the drive structure 60 can drive the locking member 30 to move away from the wheel body 302 of the wheel assembly 300 to perform brake unlocking. Of course, the braking mechanism 100 of this utility model can be applied not only to children's vehicles 1000, but also to other vehicle structures, such as shopping carts, camping vehicles and other vehicle structures, without any specific limitation.

[0082] When the locking member 30 moves toward the wheel body 302, it can move circumferentially toward the wheel body 302 to brake the axle portion of the wheel body 302, or it can move axially toward the wheel body 302 to brake the disc portion of the wheel body 302; the specific movement is not limited. Alternatively, to improve the braking effect, when braking the axle portion of the wheel body 302 with the locking member 30, a locking member can be provided at the axle portion of the wheel body 302 to lock and engage with the locking member 30, effectively preventing the locking member 30 from loosening and causing locking failure. When braking the disc portion of the wheel body 302 with the locking member 30, a similar method can be used, with a corresponding locking member locking and engaging with the locking member 30; the specific movement is not limited.

[0083] The technical solution of this utility model provides a locking member 30 installed on the wheel seat 301 of the wheel assembly 300 for locking and unlocking the wheel body 302 of the wheel assembly 300. A drive structure 60 is movably disposed on the wheel seat 301 and engages with the locking member 30 to drive the locking member 30 to lock the wheel body 302. When the braking mechanism 100 is applied to the stroller 1000, external force can be applied to the drive structure to drive the locking member to move, switching between two different motion states of locking and unlocking. This realizes the switching of braking and unlocking operations on the stroller 1000, improving the convenience of braking and unlocking operations on the stroller 1000, thereby improving the safety of using the stroller 1000.

[0084] Of course, in other embodiments of this utility model, the transmission structure 40 can also be connected to the second traction rope and the fixed pulley 46 on the cross brace 10. Specifically, the cross brace 10 can be installed on the frame 200 and close to the connection between the frame 200 and the wheel assembly 300. The locking member 30 is installed on the wheel seat 301 and can move toward or away from the wheel 302 to brake the wheel 302 or release the brake by separating from the wheel 302. The second traction rope of the transmission structure 40 is connected to the pedal 20. The drive structure 60 can be installed on the wheel seat 301 and connected to the locking member 30. The pedal 20 can be rotatably installed on the cross brace 10. When the pedal 20 is subjected to external force and rotates downward, it can drive the second traction rope to move toward the pedal 20, so that the second traction rope can drive the drive structure 60 to move toward the locking member 30, and drive the locking member 30 to move toward the wheel 302 to lock the wheel 302 and brake it. When the foot pedal 20 rotates upward under the action of external force, it can drive the second traction rope away from the foot pedal 20, thereby driving the drive structure 60 away from the locking member 30, driving the locking member 30 away from the wheel 302, unlocking the wheel 302, and releasing the brake.

[0085] The fixed pulley 46 has a circumferential surface for reversing the transmission of the second traction rope. When the second traction rope moves toward the foot pedal 20, the second traction rope reverses direction from the circumferential surface of the fixed pulley 46 and connects to the drive structure 60 located above the fixed pulley 46. When the second traction rope moves toward the foot pedal 20, the reversing transmission of the fixed pulley 46 can drive the drive structure 60 located above the fixed pulley 46 to move toward the locking member 30, thereby enabling the locking member 30 to move toward the wheel body 302 for braking.

[0086] Because the second traction rope is a flexible structure, it can only pull the object forward and cannot move the object backward when resetting. Therefore, when the second traction rope moves away from the pedal 20, in order to ensure that the locking member 30 can move away from the wheel 302 to release the brake, in addition to the fixed pulley 46, the drive structure 60 can also include a resetting member. When the drive structure 60 is pulled towards the locking member 30 by the second traction rope, the resetting member is compressed and stores force. When the second traction rope moves away from the pedal 20, the resetting member releases the force, allowing the drive structure 60 to move away from the locking member 30, thereby driving the locking member 30 away from the wheel 302, releasing the lock on the wheel 302 of the wheel assembly 300, and thus releasing the brake.

[0087] When the braking mechanism 100 is applied to the children's vehicle 1000, in order to improve the locking effect of the locking member 30 on the wheel assembly 300 wheel body 302, the braking mechanism 100 may optionally include a brake disc 50, the brake disc 50 being mounted on the wheel body 302 along the axial direction of the wheel body 302, and the locking member 30 being moved radially along the brake disc 50 to lock or unlock the brake disc 50, thereby locking or unlocking the wheel body 302;

[0088] This locking mechanism, through the locking engagement of the brake disc 50 and the locking element 30, enhances the locking effect on the wheel 302. Therefore, when applied to existing children's vehicles 1000, this braking mechanism 100 does not require adjustment of the locking effect of the locking element 30 based on the actual condition of the wheel 302, and the braking effect on different models of children's vehicles 1000 will not deteriorate due to variations in the actual condition of the wheel 302. Thus, the braking mechanism 100 is applicable to existing children's vehicles 1000, improving their braking performance.

[0089] The locking mechanism between the locking member 30 and the brake disc 50 can be achieved by having a first anti-slip element on the side of the locking member 30 facing the brake disc 50 and a second anti-slip element on the circumference of the brake disc 50. The rotation of the wheel 302 is restricted by the abutting engagement of the first and second anti-slip elements. Alternatively, multiple spaced locking grooves 51 can be provided on the circumference of the brake disc 50, and the circumferential rotation of the brake disc 50 is restricted by the insertion engagement of the locking member 30 with the locking grooves 51. The relevant settings are as follows (see attached image). Figure 7 , Figure 12 As shown, in one embodiment, the outer periphery of the brake disc 50 is provided with a plurality of spaced locking grooves 51, and the locking member 30 has a locking block 31 protruding toward the locking groove 51. The locking block 31 is inserted into the locking groove 51 to lock the brake disc 50.

[0090] With this configuration, when the locking block 31 is inserted into the locking groove 51, when the wheel 302 rotates, the groove wall of the locking groove 51 will abut against the locking block 31, preventing the brake disc 50 from rotating, thereby preventing the wheel 302 from rotating and thus locking the wheel 302.

[0091] Furthermore, to improve the locking effect of the locking block 31 in the locking groove 51 on the brake disc 50, the shape of the locking groove 51 can be further improved. For example, the diameter of the locking groove 51 facing the opening end of the locking block 31 can be larger than the inner diameter of the side of the locking groove 51 away from the locking block 31, and the inner diameter of the locking groove 51 can be gradually reduced from the opening end inward. In this way, when the locking block 31 is inserted into the locking groove 51 from the opening end, the locking block 31 gradually presses against the inner walls on both sides of the locking groove 51. The pressing force of the locking block 31 on the locking groove 51 is converted into friction between the two, thereby preventing the locking block 31 from moving upward and moving out of the locking groove 51 when not in use, which would cause the locking of the wheel 302 to fail. In addition, anti-slip pads can be provided on the inner walls of both sides of the locking groove 51 to increase the contact friction between the inner wall of the locking groove 51 and the locking block 31, which can further prevent the locking block 31 from moving out of the locking groove 51.

[0092] Furthermore, in other embodiments of this utility model, a plurality of locking blocks 31 spaced apart may be provided on the outer periphery of the brake disc 50, and a locking groove 51 facing the brake disc 50 may be provided on the locking member 30. When the locking member 30 moves toward the brake disc 50, one of the locking blocks 31 located on the outer periphery of the brake disc 50 can be inserted into the locking groove 51 on the locking member 30, thereby locking the rotation of the brake disc 50 and thus locking the wheel 302. No specific limitations are made here.

[0093] In this utility model, when the wheel assembly 300 is a universal wheel structure, the wheel body 302 can not only achieve axial rotation through the travel shaft arranged along the axial direction, but also achieve circumferential swing rotation through the rotation shaft 303 arranged along its radial direction. In this case, in order to prevent the drive structure 60 provided on the wheel seat 301 from changing position when the wheel assembly 300 is performing universal rotation, and thus unable to cooperate with the transmission structure 40 provided on the cross brace 10 to drive the locking member 30, optionally, the wheel assembly 300 is a universal wheel structure, the wheel assembly 300 includes a rotation shaft 303, and the rotation shaft 303 is rotatably provided on the frame 200 about a first axis extending in a first direction;

[0094] The drive structure 60 is connected to the rotating shaft 303 and rotates with the rotating shaft 303.

[0095] The first direction can be the radial direction of the wheel 302. With this setting, when the wheel 302 rotates to any position, the drive structure 60 can be located in the axial position of the rotating shaft 303, so that it can always cooperate with the transmission structure 40 to drive the locking member 30.

[0096] The following section provides a further explanation of how the drive structure 60 cooperates with the rotating shaft 303. Optionally, please refer to [the relevant documentation / reference]. Figure 5 As shown, the drive structure 60 is coaxially arranged with the rotation shaft 303;

[0097] The rotating shaft 303 has a receiving cavity 3031 arranged along the extension direction of the first shaft, and the driving structure 60 is movably disposed in the receiving cavity 3031;

[0098] The drive structure 60 includes a movable part 61 and a traction member disposed between the movable part 61 and the locking part 30;

[0099] The movable part 61 is connected to the rotating shaft 303 and rotates with the rotating shaft 303.

[0100] The accommodating cavity 3031 can be located at one end of the rotating shaft 303 near the cross brace 10. The driving structure 60 can be located inside the accommodating cavity 3031 and can rotate with the inner wall of the accommodating cavity 3031. When the rotating shaft 303 rotates, the driving structure 60 can rotate relative to the accommodating cavity 3031 while maintaining its own position. Alternatively, the driving structure 60 can be limited with the inner wall of the accommodating cavity 3031, and when the rotating shaft 303 rotates, the driving structure 60 can be fixed to the accommodating cavity 3031 and rotate with it. The specific configuration is not limited. When the foot pedal 20 changes from the second position to the first position, the transmission structure 40 can act on the driving structure 60, causing the driving structure 60 to move towards the locking member, thus achieving braking. Regardless of whether the upper end of the transmission structure 40 protrudes from the accommodating cavity 3031, the transmission structure 40 can act on the driving structure 60, causing the driving structure 60 to move towards the locking member, thus achieving braking.

[0101] Optionally, the braking mechanism 100 further includes an operating element movably disposed on the wheel seat 301 or the frame 200 for actuating the drive structure 60;

[0102] The operating element acts on the drive structure 60 along a second direction to move the drive structure 60, wherein the second direction intersects the first direction; or...

[0103] The operating element acts on the drive structure 60 along the first direction to make the drive structure 60 move.

[0104] When the operating member is set on the wheel seat 301, the drive structure 60 can be moved directly on the wheel seat 301 by the operating member, thereby acting on the locking member 30 to perform braking or unlocking operations. At this time, the operating member acts on the drive structure 60 along the first direction, so that braking operation on a single wheel 302 can be achieved at the position of a single wheel assembly 300.

[0105] When the operating components are mounted on the frame 200, the operating components may include a foot pedal 20, a cross brace 10, and a transmission structure 40. The cross brace 10 is mounted on the frame 200, and the second direction can be the length direction of the cross brace 10. The transmission structure 40 can be mounted on the cross brace 10 and moves relative to the cross brace 10 in the second direction, used to move the drive structure 60 toward or away from the direction close to the wheel 302. The foot pedal 20 can be oscillatingly mounted around the cross brace 10. When the foot pedal 20 oscillates toward the first position under the action of an external force, the foot pedal 20 can drive the transmission structure 40 to move away from the foot pedal 20, so that the transmission structure 40 can drive the drive structure 60 to move, thereby enabling the drive structure 60 to move. The drive structure 60 drives the locking member 30 to move toward the wheel body 302 of the wheel assembly 300, locking and braking the wheel body 302. When the pedal member 20 swings toward the second position under the action of external force, the pedal member 20 no longer applies driving force to the transmission structure 40. The drive structure 60 can drive the locking member 30 to move away from the wheel body 302 to release the brake. In this way, the transmission structure 40 can be set on both sides of the cross brace 10, respectively connected to the drive structure 60 located on the two wheel seats 301. The movement of a single pedal member 20 drives the two transmission structures 40 to move simultaneously, thereby performing braking operations on the two wheels 302 at the same time, realizing the braking and releasing operations of multiple wheels 302.

[0106] The following section describes the drive structure 60. (See attached document.) Figure 5 , Figure 6 As shown, in one embodiment, the drive structure 60 includes a movable member 61 and a first traction member 64 disposed between the movable member 61 and the locking member 30;

[0107] The drive structure 60 further includes a second elastic element 62, which is disposed between the movable element 61 and the wheel seat 301, and is used to drive the movable element 61 to move away from the locking element 30.

[0108] The second elastic element 62 can be a spring. The second elastic element 62 can be sleeved on the movable element 61, with one end of the second elastic element 62 abutting against one end of the movable element 61 and the other end abutting against the wheel seat 301 of the wheel assembly 300. One end of the movable element 61 can cooperate with the operating element, and the other end of the movable element 61 can be directly connected to the locking element 30. When the operating element causes the movable element 61 to move, driving the movable element 61 towards the locking element 30, and subsequently driving the locking element 30 towards the brake disc 50, the movable element 61 can drive the second elastic element 62 and the movable element 61... One end of 61 moves toward the other end of the second elastic member 62 to compress the second elastic member 62. When the second elastic member 62 is compressed, it can store force so that when the sliding component 41 moves toward the foot pedal 20 and separates from the movable member 61, the sliding component 41 no longer applies a pushing force to the movable member 61, and the movable member 61 no longer applies pressure to the second elastic member 62. The second elastic member 62 can return to its original position and extend, thereby driving the movable member 61 to move away from the locking member 30, so that the movable member 61 can drive the locking member 30 away from the brake disc 50 to unlock.

[0109] In other embodiments of this utility model, when the operating member causes the movable member 61 to move, driving the movable member 61 toward the locking member 30, and then driving the locking member 30 toward the brake disc 50, the second elastic member 62 can also store force through stretching. The end of the second elastic member 62 connected to the drive structure 60 moves toward the other end away from the drive structure 60. When the sliding component 41 moves toward the foot pedal 20 and separates from the drive structure 60, and the sliding component 41 no longer applies a pushing force to the drive structure 60, the second elastic member 62 can retract and reset to drive the drive structure 60 to move away from the locking member 30, thereby realizing the release operation of the brake disc 50. This is not limited here.

[0110] See Figure 6 As shown, optionally, the drive structure 60 further includes a third elastic member 63, one end of which is connected to the locking member 30, and the other end of which is connected to the wheel seat 301, for pushing the locking member 30 toward the wheel body 302.

[0111] The first traction member 64 includes a first traction rope. When the drive structure 60 moves away from the locking member 30, the first traction rope is used to pull the locking member 30 away from the brake disc 50. The third elastic member 63 is used to store force. When the drive structure 60 moves toward the locking member 30, the third elastic member 63 is used to release force to push the locking member 30 toward the brake disc 50.

[0112] With this configuration, when the wheel seat 301 is curved and the second direction of the drive structure 60's movement along the wheel seat 301 is not consistent with the direction of the locking member 30's movement toward the brake disc 50, the movement of the drive structure 60 can easily drive the locking member 30 to move, thus facilitating the locking member 30's locking and unlocking operations on the brake disc 50. This allows the locking member 30 to move toward or away from the brake disc 50 in an optimal direction to lock or unlock the brake disc 50.

[0113] The third elastic element 63 can be configured as a spring. One end of the third elastic element 63 can abut against the end of the locking element 30 away from the brake disc 50, and the other end of the third elastic element 63 can abut against the protrusion 3011 provided on the wheel seat 301. When the drive structure 60 moves toward the locking element 30, it can pull the locking element 30 away from the brake disc 50 through the first traction rope. At this time, the third elastic element 63 is located at one end of the locking element 30 and moves toward the other end of the third elastic element 63 along with the locking element 30. The third elastic element 63 compresses and stores force. When the drive structure 60 moves toward the locking element 30, the third elastic element 63 extends and resets and releases force, driving the locking element 30 to move toward the brake disc 50 and locking the brake disc 50.

[0114] In addition, to ensure the accuracy of the movement stroke of the locking member 30, a sliding track can be provided on the wheel seat 301. The locking member 30 is slidably mounted on the sliding track to move toward or away from the brake disc 50. This ensures the accuracy of the movement direction of the locking member 30 and prevents the position of the locking member 30 from deviating.

[0115] In this invention, when the transmission structure 40 is provided with a second elastic element 62 and a third elastic element 63, optionally, the elastic force of the third elastic element 63 is less than the elastic force of the second elastic element 62. This prevents the elastic force of the third elastic element 63 from being too large, exceeding the elastic force of the second elastic element 62. In such cases, when the locking member 30 moves away from the brake disc 50, the force released by the second elastic element 62 upon reset is less than the force required to compress the third elastic element 63, resulting in the third elastic element 63 being unable to be compressed. Consequently, the locking member 30 cannot be moved away from the brake disc 50 to perform the brake release operation.

[0116] In other embodiments, the drive structure 60 may be directly connected to the locking member 30, so that when the drive structure 60 moves, it drives the locking member 30 to move.

[0117] See Figure 3 , Figure 4 , Figure 5As shown, optionally, the operating component includes a cross brace 10 and a transmission structure 40. The cross brace 10 is used to be mounted on the frame 200, and the transmission structure 40 is movable relative to the cross brace 10 to move the movable component 61 toward the direction close to the wheel 302. The transmission structure 40 includes a sliding component 41 and a first elastic element 42. The sliding component 41 is slidably disposed on the cross brace 10 along a second direction, and the first elastic element 42 connects the cross brace 10 and the sliding component 41.

[0118] Specifically, the cross brace 10 can be installed on the frame 200 and near the connection between the frame 200 and the wheel assembly 300. The sliding assembly 41 can be slidably installed on the cross brace 10. Specifically, the cross brace 10 has an inner cavity extending axially therein, and the sliding assembly 41 is slidably disposed within the inner cavity. When the pedal 20 moves to the first position, the pedal 20 pushes the sliding assembly 41 to move away from the pedal 20. When the pedal 20 moves from the first position to the second position, the sliding assembly 41 can move towards the pedal 20 under the pushing action of the first elastic member 42, thus resetting.

[0119] The sliding assembly 41 may include a first slider 412 and a second slider 411. The cross brace 10 has an inner cavity extending axially therein. The first slider 412 and the second slider 411 are slidably disposed within the inner cavity. The second slider 411 is disposed on the side of the first slider 412 away from the transmission pin 413. A through groove 4111 may be formed in the second slider 411, extending along the length of the second slider 411. A mounting post 4113 may be disposed within the through groove 4111. The first elastic element 42 may be a spring. One end of the first elastic element 42 is connected to the mounting post 4113, and the other end of the first elastic element 42 abuts against the positioning member 11 disposed on the cross brace 10. The first slider 412 can move in coordination with the foot pedal 20, and the foot pedal 20 can drive the first slider 412 to move in coordination with the second slider 412. The first slider 412 moves synchronously. When the first slider 412 moves toward the second slider 411 under the drive of the foot pedal 20, the first slider 412 can drive the second slider 411 to move. When the second slider 411 is driven to move away from the foot pedal 20, the second slider 411 can push the end of the first elastic member 42 connected to the mounting post 4113 toward the end of the first elastic member 42 that abuts against the positioning member 11, so that the first elastic member 42 elastically contracts. When the foot pedal 20 moves from the first position to the second position, the sliding assembly 41 is no longer subject to the abutment force of the foot pedal 20. The first elastic member 42 can release its elastic force, pushing the second slider 411 toward the foot pedal 20, and then pushing the first slider 412 to move, thus achieving a reset.

[0120] See Figure 5 , Figure 8 , Figure 9As shown, optionally, the transmission structure 40 has a first mating part at one end near the movable member 61, the first mating part being configured as a first inclined surface 4112, and the upper end of the movable member 61 has a second mating part, the second mating part being configured as a second inclined surface, the second mating part cooperating with the first mating part; the upper end of the movable member 61 has a second inclined surface along its circumference, so that the upper end of the movable member 61 is tapered.

[0121] The first mating part can be disposed on the side of the second slider 411 away from the first slider 412, and the second mating part can be disposed on the top of the movable part 61. When the first mating part is a first inclined surface 4112, the first inclined surface 4112 has a third end 41121 and a fourth end 41122. The fourth end 41122 is located between the third end 41121 and the locking member 30, and the fourth end 41122 is located between the foot pedal member 20 and the third end 41121. The second inclined surface is slidably disposed on the first inclined surface 4112. When the foot pedal member 20 is in the first position, the driving structure 60 is located at the fourth end 41122. When the foot pedal member 20 is in the second position, the driving structure 60 is located at the third end 41121.

[0122] The first inclined surface 4112 can be located on the side of the second slider 411 away from the first slider 412. When the foot pedal 20 moves toward the first position, the sliding assembly 41 moves away from the foot pedal 20 as a whole. The second slider 411 is simultaneously driven to move away from the foot pedal 20. Therefore, the drive structure 60 will move toward the fourth end 41122. Since the fourth end 41122 is also located between the third end 41121 and the locking member 30, when the drive structure 60 moves toward the fourth end 41122, it will move toward the locking member 30, thereby driving the locking member 30 to move. When the foot pedal 20 moves to the first position, the drive structure 60 can drive the locking member 30 to lock the wheel 302, thus achieving braking. Therefore, the movement of the sliding assembly 41 away from the foot pedal 20 in the first direction can push the drive structure 60 to move toward the locking member 30 in the second direction, causing the locking member 30 to achieve braking action. Furthermore, when the sliding component 41 moves toward the foot pedal 20 in the first direction and is pre-separated from the drive structure 60, the drive structure 60 can also continue to slide along the first inclined surface 4112 under the push of the second elastic element 62, sliding from the fourth end 41122 to the third end 41121, so that the drive structure 60 can be reset on the first inclined surface 4112.

[0123] Furthermore, when the upper end of the movable member 61 is provided with a second inclined surface along its circumference, so that the upper end of the movable member 61 is tapered, when the wheel assembly 300 is a universal wheel structure and the drive structure 60 is axially arranged along the rotation shaft 303, the movable member 61 of the drive structure 60 can rotate with the wheel body 302, so that no matter where the movable member 61 rotates with the wheel body 302, the first inclined surface 4112 can cooperate with the second inclined surface, thereby enabling the universal wheel structure wheel assembly 300 to be effectively braked by the brake mechanism 100.

[0124] Alternatively, in other embodiments, the transmission structure 40 includes a second traction member 43 connected to the movable member 61, the second traction member 43 being used to drive the movable member 61 toward the wheel 302 during movement, so that the locking member 30 locks the wheel 302.

[0125] Specifically, see Figure 16 , Figure 17 , Figure 18 As shown, the second traction member 43 of the transmission structure 40 is connected to the pedal member 20. The second traction member 43 can be configured as a second traction rope. The drive structure 60 can be mounted on the wheel seat 301 and connected to the locking member 30. When the pedal member 20 is subjected to an external force and rotates downwards, it can drive the second traction member 43 to move towards the pedal member 20, thereby driving the drive structure 60 towards the locking member 30. This movement of the locking member 30 locks the brake disc 50, thus applying the brakes. When the pedal member 20 is subjected to an external force and rotates upwards, it can drive the second traction member 43 away from the pedal member 20, thereby driving the drive structure 60 away from the locking member 30. This movement of the locking member 30 then moves away from the wheel 302, unlocking the wheel 302 and releasing the brakes.

[0126] See Figure 17 , Figure 18 As shown, the transmission structure 40 may also include a fixed pulley 46. The outer periphery of the fixed pulley 46 has a circumferential surface for reversing the transmission of the second traction rope. When the second traction rope moves toward the foot pedal 20, the second traction rope reverses direction from the circumferential surface of the fixed pulley 46 and connects to the drive structure 60 located above the fixed pulley 46. When the second traction rope moves toward the foot pedal 20, the reversing transmission of the fixed pulley 46 can drive the drive structure 60 located above the fixed pulley 46 to move toward the locking member 30, thereby enabling the locking member 30 to move toward the wheel body 302 for braking.

[0127] Because the second traction rope is a flexible structure, it can only pull the object forward and cannot move the object backward when resetting. Therefore, when the second traction rope moves away from the pedal 20, in order to ensure that the locking member 30 can move away from the wheel 302 to release the brake, in addition to the fixed pulley 46, the drive structure 60 can also include a resetting member. When the drive structure 60 is pulled towards the locking member 30 by the second traction rope, the resetting member is compressed and stores force. When the second traction rope moves away from the pedal 20, the resetting member releases the force, allowing the drive structure 60 to move away from the locking member 30, thereby driving the locking member 30 away from the wheel 302, releasing the lock on the wheel 302 of the wheel assembly 300, and thus releasing the brake.

[0128] See Figure 3 , Figure 4 , Figure 7 As shown, optionally, the operating component further includes a foot pedal 20, which is movably mounted on the cross brace 10 between a first position and a second position, and the foot pedal 20 is connected to the drive structure 60 via the transmission structure 40.

[0129] The foot pedal 20 can be oscillatingly mounted around the cross brace 10. The foot pedal 20 can have a first position and a second position. When the foot pedal 20 oscillates towards the first position under external force, it drives the sliding assembly 41 to move away from the foot pedal 20. This causes the sliding assembly 41 to drive the drive structure 60, which in turn drives the locking member 30 towards the wheel body 302 of the wheel assembly 300. At this time, the first elastic member 42 can be compressed and store force when the sliding assembly 41 moves. When pedal 20 moves to the first position, locking member 30 can move to the position of locking wheel 302 to perform brake locking. When pedal 20 swings toward the second position under the action of external force, pedal 20 no longer applies driving force to sliding assembly 41. Therefore, sliding assembly 41 no longer applies pressure to first elastic member 42. First elastic member 42 can release force and push sliding assembly toward pedal 20, so that drive structure 60 can drive locking member 30 to move toward the wheel 302 away from wheel assembly 300 to perform brake unlocking.

[0130] See Figure 4 , Figure 10 , Figure 11As shown, optionally, the sliding assembly 41 includes a transmission pin 413. The foot pedal 20 has a strip groove 210 on the side facing the sliding assembly 41. The transmission pin 413 is slidably disposed in the strip groove 210. The strip groove 210 has a first end 210a and a second end 210b. The groove depth of the first end 210a is greater than the groove depth of the second end 210b. The foot pedal 20 is swayably disposed on one side of the cross brace 10. When the foot pedal 20 is in the first position, the transmission pin 413 abuts against the inner wall of the second end, and the locking member 30 locks the wheel 302. When the foot pedal 20 is in the second position, the transmission pin 413 abuts against the inner wall of the first end 210a, and the locking member 30 unlocks the wheel 302.

[0131] The first slider 412 may have a first mounting groove 4121, and the transmission pin 413 has a first pin segment 4131 and a second pin segment 4132. The first pin segment 4131 is inserted into the first mounting groove 4121, and the second pin segment 4132 is slidably mounted in the strip groove 210. When the foot pedal 20 moves to the first position, the foot pedal 20 drives the strip groove 210 to move synchronously, causing the strip groove 210 to move from the position where the second pin segment 4132 is located at the first end 210a to the position where the second pin segment 4132 is located at the second end 210b. Since the groove depth at the first end 210a is greater than the groove depth at the second end 210b, the transmission pin 413 as a whole will move away from the foot pedal 20. Since the first pin segment 4131 of the transmission pin 413 is connected to the first slider 412, it can push the first slider 412 to move away from the foot pedal 20. When the foot pedal 20 moves from the first position to the second position, the second pin segment 4132 moves from the second end 210b to the first end 210a. Since the groove depth of the first end 210a is greater than the groove depth of the second end 210b, the second pin segment 4132 of the transmission pin 413 cannot move independently from the shallower second end 210b to the deeper first end 210a. At this time, the first slider 412 can move towards the foot pedal 20 under the pushing action of the first elastic member 42, so that the second pin segment 4132 of the transmission pin 413 can move from the second end 210b to the first end 210a, thus achieving reset.

[0132] See Figure 2 , Figure 7 , Figure 12As shown, optionally, the brake mechanism 100 further includes a mounting base 70, which is disposed on the cross brace 10. The foot pedal 20 includes a rotating part 21 and a foot pedal part 22. The rotating part 21 is rotatably mounted on the mounting base 70. When the foot pedal 20 is in the first position, the foot pedal part 22 is close to the lower part of the rotating part 21. When the foot pedal 20 is in the second position, the foot pedal part 22 is close to the upper part of the rotating part 21. The rotating part 21 is provided with the strip groove 210. The transmission pin 413 is used to slide along the strip groove 210 when the rotating part 21 rotates.

[0133] The mounting base 70 has a mounting position for rotatably mounting the foot pedal 20. The mounting position has a rotating shaft 303 for mounting the rotating part 21 of the foot pedal 20. The extending direction of the rotating shaft 303 can be parallel to the axial direction of the cross brace 10. A strip groove 210 can be formed on one side of the rotating part 21. The strip groove 210 can be arc-shaped, with its arc center concentric with the rotation center of the rotating part 21. This allows the second pin segment 4132 of the transmission pin 413 to slide along the strip groove 210, switching positions between the first end 210a and the second end 210b as the foot pedal 20 moves. The foot pedal part 22 of the foot pedal 20 can be moved between a first position and a second position by external force. It is used to move to the first position by the force applied by the foot pedal, wherein the first position can be located below the second position. Thus, by stepping on the foot pedal 22, the foot pedal 20 can be swung downward to the first position to achieve braking, and by lifting the foot pedal 22, the foot pedal 20 can be swung upward to the second position to achieve releasing the brake. The movement can be switched by stepping on and lifting the foot pedal 22.

[0134] Additionally, anti-slip textures can be provided on the upper surface of the pedal 22. When the pedal 22 is pressed down by the foot, it can prevent the foot from slipping and affecting braking. Furthermore, anti-slip textures can also be provided on the lower surface of the pedal 22. When the foot touches the front of the pedal 22 and the pedal 22 is lifted up, it can also prevent slippage when lifting the pedal 22, thus preventing the brakes from being released.

[0135] To allow the transmission pin 413 to slide smoothly along the slot 210 and switch positions between the first end 210a and the second end 210b, optionally, the slot 210 has an inclined surface extending from the first end 210a to the second end 210b. The second pin segment 4132 of the transmission pin 413 is slidably in contact with the inclined surface and can reciprocate along the inclined surface between the first end 210a and the second end 210b. This makes the movement of the transmission pin 413 smoother when switching positions between the first end 210a and the second end 210b, and prevents the transmission pin 413 from getting stuck in the slot 210.

[0136] See Figure 11 , Figure 12 As shown, optionally, a limiting structure is provided between the mounting base 70 and the rotating part 21;

[0137] The limiting structure includes a limiting hole and a limiting member, one of which is disposed on the mounting base and the other on the foot pedal. Figure 4 , Figure 12 As shown, in this embodiment, two limiting holes are provided on the surface of the foot pedal facing the mounting base, and a limiting member is provided on the mounting base. When the foot pedal is in a first position, the limiting member is located in one of the positioning holes, restricting the foot pedal to the first position; when the foot pedal is in a second position, the limiting member is located in the other positioning hole, restricting the foot pedal to the second position. It can remain in either the first or second position without external force, thereby improving the reliability of brake locking. The limiting member is elastic; when a large force is applied to the foot pedal, the limiting member can disengage from the limiting hole. In other embodiments, other limiting structures can also be used to achieve this.

[0138] See Figure 3 , Figure 4 As shown, optionally, the locking member 30 and the transmission structure 40 are provided in two sets. The two sets of locking members 30 are respectively used to install wheel seats 301 at both ends of the cross brace 10. The two sets of transmission structures 40 are respectively provided on both sides of the foot pedal 20. Each transmission structure 40 is connected to the foot pedal 20 and each locking member 30.

[0139] This configuration allows for simultaneous braking and de-braking of both wheels 302 by controlling the pressing and lifting of a single foot pedal 20. This improves the braking effect and ease of operation when the braking mechanism 100 is applied to the stroller 1000. Specifically, two symmetrically arranged strip grooves 210 can be provided on the rotating part 21 of the locking member 30, respectively for mounting the transmission pins 413 of two sets of sliding members 41. Each strip groove 210 has a first end 210a and a second end 210b. Furthermore, two brake discs 50 can be installed axially on the two opposing wheels 302, respectively cooperating with the two locking members 30 to simultaneously lock and unlock the two wheels 302.

[0140] See Figure 17 , Figure 18As shown, optionally, the transmission structure 40 further includes a pressure block 44 slidably disposed in the wheel seat 301, the second traction member 43 includes a second traction rope, one end of the second traction rope is connected to the pressure block 44, and the other end is connected to the foot pedal member 20, and the pressure block 44 abuts against the upper end of the movable member 61.

[0141] The pressure block 44 can slide along the axial direction of the rotating shaft 303 under the drive of the second traction rope along the wheel seat 301. When the pressure block 44 abuts against the upper end of the movable member 61, the pressure block 44 can either extend into the receiving cavity 3031 and abut against the movable member 61, or it can abut against the movable member 61 outside the receiving cavity 3031; this is not limited here. When one end of the second traction rope is connected to the foot pedal 20 and the other end is connected to the pressure block 44, the positional movement of the foot pedal 20 can drive the pressure block 44 to move towards the upper end of the drive structure 60 through the traction member, thereby abutting against the upper end of the drive structure 60. This pushes the drive structure 60 towards the locking member 30 within the receiving groove, causing the locking member 30 to lock the wheel body 302 of the wheel assembly 300, thus realizing the braking operation.

[0142] Optionally, the transmission structure 40 further includes a fixed pulley 46 rotatably disposed on the wheel seat 301, and the second traction rope is wound around the fixed pulley 46 to achieve reversal; thus, when the second traction rope moves toward the foot pedal 20, the reversal transmission of the fixed pulley 46 can drive the drive structure 60 located above the fixed pulley 46 to move toward the locking member 30, thereby enabling the locking member 30 to move toward the wheel body 302 for braking.

[0143] Optionally, the foot pedal 20 includes a rotating part 21 and a foot pedal part 22. The rotating part 21 is rotatably mounted on the cross brace 10, and the foot pedal part 22 is connected to the rotating part 21. When the foot pedal 20 is in a first position, the foot pedal part 22 is located near the lower part of the rotating part 21, and when the foot pedal 20 is in a second position, the foot pedal part 22 is located near the upper part of the rotating part 21.

[0144] See Figure 19 , Figure 20As shown, in this utility model, the cross brace 10 can be configured as a columnar part at the position for mounting the foot pedal 20. The cross-section of the cross brace 10 can be circular, allowing the rotating part 21 to rotate around the columnar part as an axis. The rotating part 21 can include a first half-shell 21a and a second half-shell 21b. The first half-shell 21a and the second half-shell 21b are spliced ​​together to form a cylindrical structure and fitted onto the columnar part of the cross brace 10, allowing the foot pedal 20 to rotate around the columnar part of the cross brace 10 via the rotating part 21. When the foot pedal 20 is in the first position, the foot pedal 22 is close to the lower part of the rotating part 21, that is, the foot pedal 20 is in the first position by stepping on the foot pedal 22. When the foot pedal 20 is in the second position, the foot pedal 22 is close to the upper part of the rotating part 21, that is, the foot pedal 20 is in the second position by hooking the foot pedal 22 upwards. Thus, braking and releasing the brake can be achieved by pressing and lifting the foot pedal 22. The braking and releasing operations are convenient, the actions are clear and easy to identify, and there is no need to operate the foot pedal 20 by hand. However, regarding the operation of the foot pedal 20, this invention is not limited to pressing and lifting the foot; it can also be operated by hand or with a tool to achieve operation between a first and second position, thus achieving braking and releasing the brake.

[0145] Optionally, the transmission structure 40 further includes a column member 45, which is connected to the second traction rope. The foot pedal 20 has an inclined groove 221, and the column member 45 is movably disposed in the inclined groove 221. The inclined groove 221 has a first end and a second end, with the second end located between the first end and the foot pedal 22. The first end is close to the locking member 30, and the second end is away from the locking member 30. When the locking member 30 is in the first position, the column member 45 is located at the second end, and the locking member 30 locks the wheel 302. When the locking member 30 is in the second position, the column member 45 is located at the first end, and the locking member 30 unlocks the wheel 302.

[0146] With this configuration, when the foot pedal 22 is pressed down, the column 45 slides from the first end to the second end. Since the first end is close to the locking member 30 and the second end is far from the locking member 30, the column 45 can move away from the locking member 30 when the foot pedal 22 moves down. This causes the column 45 to move the second traction rope towards the foot pedal 20, which in turn causes the drive structure 60 to move towards the locking member 30, allowing the locking member 30 to lock the brake disc 50. When the foot pedal 22 is lifted up, the column 45 slides from the second end to the first end, moving away from the foot pedal 20. This causes the second traction rope to move away from the foot pedal 20, allowing the drive structure 60 to reset and pull up the locking member 30, thus unlocking the brake disc 50.

[0147] When the column 45 slides along the inclined groove 221 and drives the second traction rope to move, in order to prevent the column 45 from circumferentially deflecting with the rotation of the rotating part 21 during movement, the cross brace 10 is optionally provided with a horizontal groove 12. The horizontal groove 12 extends along the axial direction of the cross brace 10. The column 45 is also movably disposed in the horizontal groove 12. The horizontal groove 12 has a third end close to the locking member 30 and a fourth end away from the locking member 30. When the locking member 30 is in the first position, the column 45 is located at the fourth end. When the locking member 30 is in the second position, the column 45 is located at the third end.

[0148] The transverse groove 12 can extend along the axial direction of the rotating part 21. When the rotating part 21 rotates and drives the column 45 to move, the column 45 also moves along the transverse groove 12 and reciprocates between the third end and the fourth end. In this way, the movement of the column 45 can be limited by the transverse groove 12, so that the column 45 will not deflect circumferentially with the rotation of the rotating part 21, and the column 45 will not be unable to reciprocate between the first end and the second end.

[0149] Furthermore, to ensure that the foot pedal 20 does not return to its original position when it is in the first position and released, a section with a second end in the inclined groove 221 can be configured as a vertical section. This vertical section is perpendicular to the extending direction of the horizontal groove 12. With this configuration, when the column 45 is at the second end of the vertical section, it abuts against the inner wall of the vertical section of the inclined groove 221 and will not slide along the horizontal groove 12 towards its third end. This allows the foot pedal 20 to remain in the first position, keeping the brake mechanism 100 in a brake-locked state on the stroller 1000. Only when the foot is lifted from the foot pedal 22, causing the column 45 to leave the vertical section, will the column 45 slide along the horizontal groove 12 to its third end, releasing the brake from the stroller 1000.

[0150] In this utility model, a first limiting sleeve and a second limiting sleeve can be provided at both ends of the column member 45. The outer diameter of the first limiting sleeve and the second limiting sleeve is larger than the width of the inclined waist groove 221 and the horizontal waist groove 12. In this way, when the column member 45 slides in the inclined waist groove 221 and the horizontal waist groove 12, the column member 45 will not fall out of the horizontal waist groove 12 and the inclined waist groove 221, so that the inclined waist groove 221 and the horizontal waist groove 12 cannot effectively guide the movement of the column member 45.

[0151] This utility model also proposes a children's stroller 1000, which includes a frame 200, a wheel assembly 300, and a braking mechanism 100. The specific structure of the braking mechanism 100 is as described in the above embodiments. Since this children's stroller 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The cross brace 10 of the braking mechanism 100 is disposed on the frame 200. The wheel assembly 300 includes a front wheel assembly and a rear wheel assembly, and at least one of the front wheel assembly and the rear wheel assembly is provided with the braking mechanism 100.

[0152] At least one of the front wheel assembly and the rear wheel assembly is a swivel wheel structure, or both the front wheel assembly and the rear wheel assembly are swivel wheel structures;

[0153] The frame 200 has a forward-facing use state and a rearward-facing use state, and both the front wheel assembly and the rear wheel assembly are equipped with the braking mechanism.

[0154] When both the front and rear wheel assemblies of the stroller 1000 are equipped with braking mechanisms 100, and both the front and rear wheel assemblies are swivel wheel structures, the stroller 1000 can be braked by pressing down on the foot pedal 20 and released by lifting the foot lock 30, regardless of the position of the front or rear wheels, thus improving the portability of braking. Of course, the foot pedal 30 can be operated not only by pressing down and lifting the foot, but also by hand. The frame 200 can be pushed forward or pulled backward with the stroller 1000 as a whole. In actual operation, braking can be applied to the wheel assemblies of the front and rear wheels that are not swivel-rotating, or to the wheel assemblies of the front and rear wheels that are swivel-rotating; there is no limitation on this.

[0155] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A braking mechanism, characterized in that, include: A locking element, movably mounted on the wheel seat of a wheel assembly, for locking and unlocking the wheel body of the wheel assembly; A drive structure is movably disposed on the wheel seat and engages with the locking member to drive the locking member to move and lock the wheel body; The wheel assembly is either a swivel wheel structure or a directional wheel structure.

2. The braking mechanism as described in claim 1, characterized in that, The wheel assembly is a universal wheel structure, and the wheel assembly includes a rotating shaft, which is rotatably mounted on the vehicle frame about a first axis extending in a first direction. The drive structure is connected to the rotating shaft and rotates with the rotating shaft.

3. The braking mechanism as described in claim 2, characterized in that, The drive structure is coaxially arranged with the rotating shaft; The rotating shaft has a receiving cavity arranged along the extending direction of the first shaft, and the driving structure is movably disposed within the receiving cavity; and / or, The drive structure includes a movable component and a traction component disposed between the movable component and the locking component; The movable component is connected to the rotating shaft and rotates with the rotating shaft.

4. The braking mechanism as described in claim 2, characterized in that, The braking mechanism also includes an operating component movably mounted on the wheel seat or the frame, for actuating the drive structure; The operating element acts on the driving structure along a second direction to make the driving structure move, the second direction intersecting the first direction; or, The operating element acts on the drive structure along the first direction to make the drive structure move.

5. The braking mechanism as described in claim 4, characterized in that, The drive structure includes a movable component and a first traction component disposed between the movable component and the locking component; The drive structure further includes a second elastic element, which is disposed between the movable element and the wheel seat, and is used to drive the movable element to move away from the locking element. The drive structure further includes a third elastic element, one end of which is connected to the locking element and the other end of which is connected to the wheel seat, for pushing the locking element toward the wheel body; The elastic force of the third elastic element is less than that of the second elastic element; The first traction component includes a first traction rope.

6. The braking mechanism as described in claim 5, characterized in that, The frame includes a cross brace, and the operating member also includes a transmission structure connected to the operating member. The transmission structure is movable relative to the cross brace to move the movable member toward the direction of the wheel. The transmission structure includes a sliding component and a first elastic element. The sliding component is slidably disposed on the cross brace along a second direction. The first elastic element connects the cross brace and the sliding component. The transmission structure has a first mating part near the movable component, which is configured as a first inclined surface. The upper end of the movable component has a second mating part, which is configured as a second inclined surface. The second mating part mates with the first mating part. The upper end of the movable component has second inclined surfaces along its circumference to make the upper end of the movable component conical. or, The transmission structure includes a second traction member connected to the movable member. The second traction member is used to drive the movable member to move toward the wheel body during movement, so that the locking member locks the wheel body.

7. The braking mechanism as described in claim 6, characterized in that, The operating component also includes a foot pedal, which is movably mounted on the cross brace between a first position and a second position, and the foot pedal is connected to the drive structure via the transmission structure. The sliding assembly includes a drive pin. The foot pedal has a slot on one side facing the sliding assembly. The drive pin is slidably disposed in the slot. The slot has a first end and a second end. The depth of the first end is greater than the depth of the second end. The foot pedal is pivotally disposed on one side of the cross brace. When the foot pedal is in the first position, the drive pin abuts against the inner wall of the second end, and the locking member locks the wheel. When the foot pedal is in the second position, the drive pin abuts against the inner wall of the first end, and the locking member unlocks the wheel. The braking mechanism further includes a mounting base disposed on the cross brace. The foot pedal includes a rotating part and a foot pedal part. The rotating part is rotatably mounted on the mounting base. When the foot pedal is in a first position, the foot pedal part is located near the lower part of the rotating part. When the foot pedal is in a second position, the foot pedal part is located near the upper part of the rotating part. The rotating part is provided with the strip groove. The transmission pin is used to slide along the strip groove when the rotating part rotates. A limit structure is provided between the mounting base and the rotating part; The locking member and the transmission structure are provided in two sets. The two sets of locking members are respectively used to install on the wheel seats at both ends of the cross brace. The two sets of transmission structures are respectively provided on both sides of the foot pedal. Each transmission structure drives the foot pedal and each locking member.

8. The braking mechanism as described in claim 6, characterized in that, The operating component includes a foot pedal, which is movably mounted on the cross brace between a first position and a second position, and is connected to the drive structure via the transmission structure. The transmission structure further includes a pressure block slidably disposed in the wheel seat, the second traction member includes a second traction rope, one end of the second traction rope is connected to the pressure block, the other end is connected to the foot pedal member, and the pressure block abuts against the upper end of the movable member; The transmission structure also includes a fixed pulley rotatably mounted on the wheel seat, and the second traction rope is wound around the fixed pulley to achieve reversal; The foot pedal includes a rotating part and a foot pedal part. The rotating part is rotatably mounted on the cross brace, and the foot pedal part is connected to the rotating part. When the foot pedal is in a first position, the foot pedal part is close to the lower part of the rotating part, and when the foot pedal is in a second position, the foot pedal part is close to the upper part of the rotating part. The transmission structure further includes a column member connected to the second traction rope. A sloping groove is provided on the foot pedal. The column member is movably disposed within the sloping groove. The sloping groove has a first end and a second end. The second end is located between the first end and the foot pedal. The first end is close to the locking member, and the second end is away from the locking member. When the locking member is in the first position, the column member is located at the second end, and the locking member locks the wheel. When the locking member is in the second position, the column member is located at the first end, and the locking member unlocks the wheel. The cross brace has a horizontal waist groove that extends along the axial direction of the cross brace. The column is also movably disposed in the horizontal waist groove. The horizontal waist groove has a third end near the locking member and a fourth end away from the locking member. When the locking member is in the first position, the column is located at the fourth end. When the locking member is in the second position, the column is located at the third end.

9. The braking mechanism as described in claim 1, characterized in that, The braking mechanism further includes a brake disc, which is mounted on the wheel body along the axial direction of the wheel body, and the locking member is moved radially along the brake disc to lock or unlock the brake disc, thereby locking or unlocking the wheel body. The brake disc has multiple spaced locking grooves on its outer periphery. The locking member has a locking block that protrudes toward the locking groove. The locking block is inserted into the locking groove to lock the brake disc.

10. A children's stroller, characterized in that, Includes the braking mechanism as described in any one of claims 1 to 9; The stroller also includes a frame and a wheel assembly mounted on the frame. The wheel assembly includes a front wheel assembly and a rear wheel assembly, and at least one of the front wheel assembly and the rear wheel assembly is provided with the braking mechanism. At least one of the front wheel assembly and the rear wheel assembly is a swivel wheel structure; Both the front wheel assembly and the rear wheel assembly are omnidirectional wheel structures. The frame has a forward-facing use state and a rearward-facing use state. Both the front wheel assembly and the rear wheel assembly are equipped with the braking mechanism.

Images