Brake mechanism and baby carriage

Abstract

The utility model discloses a brake mechanism and a baby carriage, and relates to the technical field of braking, the brake mechanism is arranged on a frame, and comprises a cross arm which is movably arranged on the frame between a first position and a second position in a switchable mode; the locking piece is used for being installed on the wheel seat of the wheel assembly and used for locking or unlocking the wheel body of the wheel assembly, and the wheel assembly is of a universal wheel structure or a directional wheel structure; the transmission structure can move relative to the transverse support and is connected with the pedal piece; the movable assembly is movably arranged on the wheel seat and is connected with the locking piece; and when the pedal piece is switched from the second position to the first position, the transmission structure is driven to act on the movable assembly, and the movable assembly drives the locking piece to lock the wheel body of the wheel assembly. According to the baby carriage braking and unlocking device, the operation convenience of braking and unlocking of the baby carriage is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake technical field, especially a brake mechanism and baby carriage. BACKGROUND

[0002] The brake mechanism is an important device to ensure the safety of children using the baby carriage, which can effectively prevent the baby carriage from losing control due to accidents or other reasons, thereby reducing the risk of children being injured. A good brake system can allow parents to better control the speed and direction of the baby carriage, especially on roads or uneven ground, which can better maintain the stability and controllability of the baby carriage.

[0003] The brake system easy to operate can make it more convenient for parents to use the baby carriage, especially when quick stopping or direction adjustment is needed. The brake mechanism of some existing baby carriages is not convenient to operate when in use, resulting in poor brake and unbrake operation experience during the use of the baby carriage, which is not conducive to the use of the baby carriage. SUMMARY

[0004] The main purpose of the utility model is to provide a brake mechanism and baby carriage, which aims to improve the operation convenience of the brake and unbrake of the baby carriage.

[0005] To achieve the above purpose, the brake mechanism provided by the utility model is arranged on the frame and comprises:

[0006] The pedal member is movably arranged between the first position and the second position on the cross brace of the frame;

[0007] The locking member is arranged on the wheel seat of the wheel assembly and is used to lock or unlock the wheel body of the wheel assembly, wherein the wheel assembly is a universal wheel structure or a directional wheel structure; and

[0008] The transmission structure is movable relative to the cross brace and connected to the pedal member;

[0009] The movable assembly is movably arranged on the wheel seat and connected to the locking member;

[0010] When the pedal member is converted from the second position to the first position, the transmission structure drives the movable assembly, and the locking member locks the wheel body of the wheel assembly through the movable assembly.

[0011] In an embodiment, the brake mechanism further comprises a brake disc, which is arranged on the wheel body in the axial direction of the wheel body, and the locking member is used to move in the radial direction of the brake disc to lock or unlock the brake disc to lock or unlock the wheel body;

[0012] The brake disc is provided with a plurality of locking grooves distributed at intervals on the outer periphery, and the locking member is provided with locking blocks protruding towards the locking grooves, which are inserted into the locking grooves to lock the brake disc.

[0013] In an embodiment, the wheel assembly is a universal wheel structure, and the wheel assembly is connected to the wheel seat by a rotating shaft extending in a first direction;

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

[0015] In an embodiment, the movable assembly is coaxially arranged with the rotating shaft.

[0016] The rotating shaft has a receiving cavity extending in the first direction, and the movable assembly is slidingly arranged in the receiving cavity.

[0017] The upper end of the movable assembly is exposed from the receiving cavity, and the transmission structure acts on the upper end of the movable assembly when the pedal is switched from the second position to the first position; or

[0018] The transmission structure extends into the receiving cavity to act on the movable assembly when the pedal is switched from the second position to the first position.

[0019] In an embodiment, the transmission structure includes a pressing block and a traction member, the pressing block is slidingly arranged in the wheel seat, one end of the traction member is connected to the pressing block, and the other end is connected to the pedal.

[0020] When the pedal is switched from the second position to the first position, the pedal is used to drive the pressing block to move through the traction member, so that the movable assembly moves towards the wheel body, thereby driving the locking member to lock the wheel body of the wheel assembly.

[0021] The pressing block abuts against the upper end of the movable assembly.

[0022] In an embodiment, the traction member is a first traction rope.

[0023] The transmission structure further includes a fixed pulley rotatingly arranged in the wheel seat, and the first traction rope is wound around the fixed pulley to realize reversing, so that part of the first traction rope is located in the wheel seat and part of the first traction rope is located in the cross support.

[0024] The fixed pulley is arranged outside the rotating shaft, and the part of the first traction rope located in the wheel seat is arranged outside the rotating shaft.

[0025] In an embodiment, the movable assembly comprises a movable member and a first elastic member, the movable member is slidingly arranged in the accommodating cavity, and the first elastic member is arranged between the accommodating cavity and the movable member and used to drive the movable member to move away from the wheel body;

[0026] The movable assembly further comprises a second traction rope and a second elastic member, the second traction rope connects the movable member and the locking member, one end of the second elastic member is connected to the locking member, and the other end of the second elastic member is used to connect the wheel seat;

[0027] When the movable assembly moves away from the wheel body, the second traction rope is used to pull the locking member to move away from the brake disc, and the second elastic member is used to store force; when the movable assembly moves toward the wheel body, the second elastic member is used to release force to push the locking member to move toward the brake disc;

[0028] The elastic force of the second elastic member is smaller than the elastic force of the first elastic member.

[0029] In an embodiment, the pedal member comprises a rotating part and a pedal part, the rotating part is rotatably mounted to the cross support, and the pedal part is connected to the rotating part, wherein, when the pedal member is in a first position, the pedal part is close to the lower side of the rotating part, and when the pedal member is in a second position, the pedal part is close to the upper side of the rotating part;

[0030] The transmission structure further comprises a column member, the column member is connected to the first traction rope, the rotating part is provided with an inclined waist groove, the column member is movably arranged in the inclined waist groove, the inclined waist groove has a first end and a second end, the second end is located between the first end and the pedal part, the first end is close to the locking member, and the second end is away from the locking member, wherein, when the locking member is in a first position, the column member is located at the second end, and when the locking member is in a second position, the column member is located at the first end;

[0031] The cross support is provided with a cross waist groove, the cross waist groove is arranged along the axial direction of the rotating part, the column member is movably arranged in the cross waist groove, the cross waist groove has a third end close to the locking member and a fourth end away from the locking member, wherein, when the locking member is in a first position, the column member is located at the fourth end, and when the locking member is in a second position, the column member is located at the third end.

[0032] In an embodiment, the locking member and the transmission structure are provided with two groups, the two groups of locking members are respectively arranged in the wheel seats at the two ends of the cross support, the two groups of transmission structures are respectively arranged on the two sides of the pedal member, and each transmission structure is in transmission connection with the pedal member and each locking member;

[0033] The cross brace comprises a first cross brace section, a second cross brace section and a third cross brace section, the first cross brace section is arranged between the second cross brace section and the third cross brace section, and the second cross brace section is bent to connect the first cross brace section and the third cross brace section.

[0034] The utility model discloses still propose a baby carriage, including the brake mechanism as described above;

[0035] The baby carriage further comprises a frame and a wheel assembly arranged on the frame, the wheel assembly comprises 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 brake mechanism;

[0036] At least one of the front wheel assembly and the rear wheel assembly is a universal wheel structure, or both the front wheel assembly and the rear wheel assembly are universal wheel structures.

[0037] The frame has a forward use state and a rearward use state, and both the front wheel assembly and the rear wheel assembly are provided with the brake mechanism.

[0038] The technical scheme of the utility model sets up the movable footrest on the cross brace, sets up the locking piece for installing on the wheel seat of the wheel assembly, sets up the transmission structure on the cross brace, sets up the movable assembly on the wheel seat for transmission connection of the footrest and the locking piece, when the footrest is in the first position, the footrest can drive the movable assembly to move towards the locking piece through the transmission structure to drive the locking piece to lock the wheel body of the wheel assembly, when the footrest is in the second position, the footrest can drive the movable assembly to move away from the locking piece through the transmission structure, and the locking piece is unlocked away from the wheel body of the wheel assembly, so when the brake mechanism is applied to the baby carriage, the brake and unbrake operation of the baby carriage can be realized through the activity of the footrest by external force and the switching of different states of the footrest, the safety of the baby carriage use is improved, and the operation convenience of the brake and unbrake of the baby carriage is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structure shown in these drawings without creative labor for those skilled in the art.

[0040] Figure 1 The structure schematic diagram of an embodiment of the baby carriage provided by the utility model is shown in the figure.

[0041] Figure 2 The structure schematic diagram of an embodiment of the baby carriage provided by the utility model is shown in the figure. Figure 1 The local enlarged view of A in the figure.

[0042] Figure 3 Structure schematic view of one embodiment of the brake mechanism provided by the utility model;

[0043] Figure 4 For Figure 3 The local enlarged view of B;

[0044] Figure 5 For Figure 3 Structure schematic view of another angle of the brake mechanism;

[0045] Figure 6 For Figure 5 The local enlarged view of C;

[0046] Figure 7 For Figure 5 The local enlarged view of D;

[0047] Figure 8 For Figure 3 Structure schematic view of still another angle of the brake mechanism;

[0048] Figure 9 For Figure 8 The local enlarged view of E;

[0049] Figure 10 For Figure 3 Structure schematic view of one angle of the cross support;

[0050] Figure 11 For Figure 3 Structure schematic view of one angle of the foot pedal;

[0051] Figure 12 For Figure 3 Structure schematic view of one angle of the locking member.

[0052] Explanation of the reference signs:

[0053] 1000, child bicycle;

[0054] 100, brake mechanism; 10, cross support; 101, first cross support section; 102, second cross support section; 103, third cross support section; 11, cross waist groove; 111, third end; 112, fourth end; 20, foot pedal; 21, rotating part; 21a, first half shell part; 21b, second half shell part; 211, inclined waist groove; 211a, first end; 211b, second end; 22, foot pedal part; 30, locking member; 31, locking block; 40, transmission structure; 41, pressing block; 42, first traction rope; 43, column member; 44, fixed pulley; 50, brake disc; 51, locking groove; 60, movable assembly; 61, movable member; 62, first elastic member; 63, second traction rope; 64, second elastic member;

[0055] 200, frame; 300, wheel assembly; 301, wheel seat; 3011, protrusion; 302, wheel body.

[0056] The purposes, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0058] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0059] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0060] The brake mechanism is an important device to ensure the safety of children during the use of the stroller, which can effectively prevent the stroller from losing control due to accidents or other reasons, thereby reducing the risk of children being injured. A good brake system can better control the speed and direction of the stroller, especially on roads or uneven ground, and can better maintain the stability and controllability of the stroller.

[0061] The brake system easy to operate can make the parents use the baby carriage more conveniently, especially when the quick stop or the direction adjustment is needed. The brake mechanism of the existing part of the baby carriage is not convenient to operate when used, which leads to the poor operation experience of the brake and the unbrake during the use of the baby carriage, and is not conducive to the use of the baby carriage.

[0062] The utility model provides a brake mechanism 100. It aims at improving the operation convenience of the brake and the unbrake of the baby carriage and improving the use experience of the baby carriage 1000.

[0063] Please refer to Figures 1 to 12 In an embodiment of the utility model, the brake mechanism 100 is arranged on the frame 200, which comprises:

[0064] The pedal 20 is movably arranged between the first position and the second position on the cross support 10 of the frame 200.

[0065] The locking piece 30 is arranged on the wheel seat 301 of the wheel assembly 300 and is used for locking or unlocking the wheel body 302 of the wheel assembly 300, wherein the wheel assembly 300 is a universal wheel structure or a directional wheel structure.

[0066] The transmission structure 40 is movably arranged relative to the cross support 10 and is connected with the pedal 20.

[0067] The movable assembly 60 is movably arranged on the wheel seat 301 and is connected with the locking piece 30.

[0068] When the pedal 20 is converted from the second position to the first position, the transmission structure 40 is driven to act on the movable assembly 60, and the movable assembly 60 drives the locking piece 30 to lock the wheel body 302 of the wheel assembly 300.

[0069] The brake mechanism 100 of the utility model can be applied to the brake system of the baby carriage 1000, wherein the baby carriage 1000 comprises a frame 200 and a plurality of wheel assemblies 300, the wheel assembly 300 can comprise a wheel seat 301 and a wheel body 302, and the wheel body 302 is rotatably installed on the wheel seat 301. Specifically, the cross brace 10 can be installed on the frame 200 and is close to the connection between the frame 200 and the wheel assembly 300, the locking piece 30 is arranged on the wheel seat 301 and can move towards or away from the wheel body 302 to brake the wheel body 302 or separate from the wheel body 302 to release the brake, the transmission structure 40 can be partially arranged on the cross brace 10, the transmission structure 40 can be provided with a first traction rope 42, the first traction rope 42 is connected to the footrest 20, the movable assembly 60 can be arranged on the wheel seat 301 and is connected to the locking piece 30 and the first traction rope 42, the footrest 20 can be rotatably installed on the cross brace 10, when the footrest 20 rotates downwards under the action of external force, the first traction rope 42 can be moved towards the footrest 20, the first traction rope 42 can drive the movable assembly 60 to move towards the locking piece 30, thereby driving the locking piece 30 to move towards the wheel body 302 to lock the wheel body 302 and brake. When the footrest 20 rotates upwards under the action of external force, the first traction rope 42 can be moved away from the footrest 20, thereby driving the movable assembly 60 to move away from the locking piece 30, driving the locking piece 30 to move away from the wheel body 302 to unlock the wheel body 302 and release the brake. Of course, the brake mechanism 100 of the utility model can not only be applied to the baby carriage 1000, but also can be applied to other vehicle body structures, for example, shopping trolleys, camping vehicles and other vehicle body structures, and the specific application is not limited.

[0070] When the first traction rope 42 moves towards the footrest 20, in order to ensure that the one end of the first traction rope 42 connected to the other end of the transmission structure 40 can move towards the locking piece 30 to drive the other end of the transmission structure 40 to move towards the locking piece 30, optionally, the transmission structure 40 further comprises a fixed pulley 44, the fixed pulley 44 has a circumferential surface for the transmission and reversing of the first traction rope 42, the first traction rope 42 is reversed from the circumferential surface of the fixed pulley 44 and is connected to the movable assembly 60 above the fixed pulley 44, when the first traction rope 42 moves towards the footrest 20, the movable assembly 60 above the fixed pulley 44 can be driven to move towards the locking piece 30 through the reversing transmission of the fixed pulley 44, thereby enabling the locking piece 30 to move towards the wheel body 302 to brake.

[0071] Since the first traction rope 42 is a flexible structure, it can only pull the animal body forward and cannot pull the animal body backward during resetting. Therefore, when the first traction rope 42 moves away from the footrest 20, in order to ensure that the locking member 30 can move away from the wheel body 302 to release the brake, on the basis of the above-mentioned setting of the pulley 44, the movable assembly 60 can include a resetting member. When the movable assembly 60 is pulled towards the locking member 30 by the first traction rope 42, the resetting member is compressed and stored. When the first traction rope 42 moves away from the footrest 20, the resetting member is released to release force, so that the movable assembly 60 can move away from the locking member 30, thereby driving the locking member 30 to move away from the wheel body 302 of the wheel assembly 300, releasing the locking of the wheel body 302 of the wheel assembly 300, so as to release the brake.

[0072] When the locking member 30 moves towards the wheel body 302, the locking member 30 can move circumferentially towards the wheel body 302 to brake the wheel shaft part of the wheel body 302, or the locking member 30 can move axially towards the wheel body 302 to brake the face disc part of the wheel body 302, and the specific mode is not limited. Alternatively, in order to improve the braking effect, when the locking member 30 brakes the wheel shaft part of the wheel body 302, a locking member can be arranged on the wheel shaft part of the wheel body 302 to lock and cooperate with the locking member 30, so that the locking member 30 can be clamped with the locking member of the wheel shaft part, which can effectively prevent the locking member 30 from loosening and causing locking failure. When the locking member 30 brakes the face disc part of the wheel body 302, a similar locking member can be arranged on the face disc part of the wheel body 302 to lock and cooperate with the locking member 30, and the specific mode is not limited.

[0073] The technical scheme of the utility model sets the movable footrest 20 on the cross brace 10, sets the locking member 30 for being installed on the wheel seat 301 of the wheel assembly 300, sets the transmission structure 40 on the cross brace 10, sets the movable assembly 60 on the wheel seat 301 for transmission connection of the footrest 20 and the locking member 30, when the footrest 20 is at the first position, the footrest 20 can drive the movable assembly 60 to move towards the locking member 30 through the transmission structure 40, so as to drive the locking member 30 to lock the wheel body 302 of the wheel assembly 300, when the footrest 20 is at the second position, the footrest 20 can drive the movable assembly 60 to move away from the locking member 30 through the transmission structure 40, so as to drive the locking member 30 to unlock the wheel body 302 of the wheel assembly 300, so when the brake mechanism 100 is applied to the child car 1000, the brake and release operation of the child car 1000 can be realized through the switching of different states of the footrest 20 by the external force acting on the footrest 20, the safety of the child car 1000 is improved, and the operation convenience of the brake and release of the child car 1000 is improved.

[0074] In use of the brake mechanism 100 on the stroller 1000, to improve the locking effect of the locking member 30 on the wheel body 302 of the wheel assembly 300, the brake mechanism 100 optionally further comprises a brake disc 50, which is mounted on the wheel body 302 along the axial direction of the wheel body 302, and the locking member 30 is configured to move along the radial direction of the brake disc 50 to lock or unlock the brake disc 50 to lock or unlock the wheel body 302.

[0075] In this way, the locking effect on the wheel body 302 can be improved through the locking cooperation between the brake disc 50 and the locking member 30, so that the brake mechanism 100 can be applied to the existing stroller 1000 without the need to adjust the locking effect of the locking member 30 according to the actual situation of the wheel body 302, and the brake effect on the wheel body 302 of different models of strollers 1000 will not be affected by the different actual situations of the wheel body 302. Thus, the brake mechanism 100 can be applied to the existing stroller 1000 to improve the brake effect of the existing stroller 1000.

[0076] In this way, the locking effect on the wheel body 302 can be improved through the locking cooperation between the brake disc 50 and the locking member 30, so that the brake mechanism 100 can be applied to the existing stroller 1000 without the need to adjust the locking effect of the locking member 30 according to the actual situation of the wheel body 302, and the brake effect on the wheel body 302 of different models of strollers 1000 will not be affected by the different actual situations of the wheel body 302. Thus, the brake mechanism 100 can be applied to the existing stroller 1000 to improve the brake effect of the existing stroller 1000. Figure 7 、 Figure 12 In this way, the locking effect on the wheel body 302 can be improved through the locking cooperation between the brake disc 50 and the locking member 30, so that the brake mechanism 100 can be applied to the existing stroller 1000 without the need to adjust the locking effect of the locking member 30 according to the actual situation of the wheel body 302, and the brake effect on the wheel body 302 of different models of strollers 1000 will not be affected by the different actual situations of the wheel body 302. Thus, the brake mechanism 100 can be applied to the existing stroller 1000 to improve the brake effect of the existing stroller 1000.

[0077] In this way, when the locking block 31 is inserted into the locking groove 51, the groove wall of the locking groove 51 will abut against the locking block 31 when the wheel body 302 rotates, so that the brake disc 50 cannot rotate, and thus the wheel body 302 cannot rotate, thereby achieving the locking of the wheel body 302.

[0078] In addition, in order to improve the locking effect of the locking block 31 inserted into the locking groove 51 on the brake disc 50, the shape of the locking groove 51 can be further improved. For example, the caliber of the locking groove 51 towards the opening end of the locking block 31 is greater than the inner diameter of the locking groove 51 away from the locking block 31, and the inner diameter of the locking groove 51 is tapered from the opening end inwardly. In this way, when the locking block 31 is inserted into the locking groove 51 from the opening end of the locking groove 51, the locking block 31 gradually presses the two side inner walls of the locking groove 51, and the pressing force of the locking block 31 on the locking groove 51 is converted into the friction force between them, thereby preventing the locking block 31 from moving upward and moving out of the locking groove 51 without operation, resulting in the locking failure of the wheel body 302. In addition, anti-skid washers can also be provided on the two side inner walls of the locking groove 51 to increase the contact friction force 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.

[0079] In addition, in other embodiments of the present application, a plurality of locking blocks 31 can be arranged at intervals on the outer periphery of the brake disc 50, and a locking groove 51 facing the brake disc 50 can be arranged on the locking member 30. When the locking member 30 moves towards the brake disc 50, one of the locking blocks 31 on the outer periphery of the brake disc 50 can be inserted into the locking groove 51 on the locking member 30 to achieve rotational locking of the brake disc 50, thereby achieving locking of the wheel body 302. This is not limited in detail.

[0080] In the present application, when the wheel assembly 300 is a universal wheel structure, the wheel body 302 can not only rotate along the axial direction through the walking shaft arranged along the axial direction, but also can swing and rotate along the circumferential direction through the rotating shaft arranged along the radial direction. In this case, in order to prevent the movable assembly 60 arranged on the wheel seat 301 from changing position when the wheel assembly 300 is rotating in a universal manner, and being unable to cooperate with the transmission structure 40 arranged on the cross brace 10 to drive the locking member 30, the wheel assembly 300 can be optionally arranged as a universal wheel structure, and the wheel assembly 300 is connected to the wheel seat 301 through a rotating shaft extending in a first direction.

[0081] The movable assembly 60 is connected to the rotating shaft and rotates with the rotating shaft.

[0082] The first direction can be the radial direction of the wheel body 302. In this way, when the wheel body 302 rotates to any position, the movable assembly 60 can be located at the axial position of the rotating shaft, so that it can always cooperate with the transmission structure 40 to drive the locking member 30.

[0083] The following further describes how the movable assembly 60 cooperates with the rotating shaft. The movable assembly 60 can be coaxially arranged with the rotating shaft.

[0084] The rotating shaft has a receiving cavity extending in the first direction, and the movable assembly 60 is slidingly arranged in the receiving cavity;

[0085] The upper end of the movable assembly 60 is exposed from the receiving cavity, and the transmission structure 40 acts on the upper end of the movable assembly 60 when the pedal 20 is switched from the second position to the first position; or,

[0086] The transmission structure 40 extends into the receiving cavity to act on the movable assembly 60 when the pedal 20 is switched from the second position to the first position.

[0087] The receiving cavity can be arranged at one end of the rotating shaft close to the cross support 10, and the movable assembly can be arranged in the receiving cavity. The movable assembly can be rotationally matched with the inner wall of the receiving cavity, and the movable assembly can rotate relative to the receiving cavity while the rotating shaft rotates, and the position of the movable assembly remains unchanged, or the movable assembly can be limitingly matched with the inner wall of the receiving cavity, and the movable assembly can be fixed with the receiving cavity and rotate together with the receiving cavity while the rotating shaft rotates. The specific arrangement is not limited. When the pedal 20 is switched from the second position to the first position, the transmission structure 40 can act on the movable assembly 60 to drive the movable assembly 60 to move towards the locking member, so as to brake, and no matter whether the upper end of the transmission structure 40 is exposed from the receiving cavity or not, the transmission structure 40 can act on the movable assembly 60 to drive the movable assembly 60 to move towards the locking member, so as to brake.

[0088] Referring to Figure 6 The transmission structure 40 includes a pressing block 41 and a traction member. The pressing block 41 is slidingly arranged in the wheel seat 301, one end of the traction member is connected with the pressing block 41, and the other end is connected with the pedal 20.

[0089] When the pedal 20 is switched from the second position to the first position, the pedal 20 is used to drive the pressing block 41 to move through the traction member, so as to drive the movable assembly 60 to move towards the wheel body 302, thereby driving the locking member 30 to lock the wheel body 302 of the wheel assembly 300.

[0090] The pressing block 41 abuts against the upper end of the movable assembly 60.

[0091] The traction member can be a first traction rope. The sliding direction of the pressing block 41 along the wheel seat 301 can be the axial direction of the rotating shaft. When the pressing block 41 abuts against the upper end of the movable assembly 60, the pressing block 41 can extend into the accommodating cavity and abut against the movable assembly 60, or the pressing block 41 can abut against the movable assembly 60 outside the accommodating cavity. The position change of the foot pedal 20 can drive the pressing block 41 to move towards the upper end of the movable assembly 60, and then the pressing block 41 can abut against the upper end of the movable assembly 60, so that the movable assembly 60 is driven to move towards the locking member 30 in the accommodating groove, and the locking member 30 is driven to lock the wheel body 302 of the wheel assembly 300, thereby achieving the brake operation.

[0092] Optionally, the traction member is a first traction rope 42.

[0093] The transmission structure 40 further comprises a fixed pulley 44 rotatably arranged on the wheel seat 301. The first traction rope 42 is arranged around the fixed pulley 44 to realize reversing, so that the first traction rope 42 is partially arranged in the wheel seat 301 and partially arranged in the cross support 10.

[0094] The fixed pulley 44 is arranged outside the rotating shaft, and the portion of the first traction rope 42 arranged in the wheel seat 301 is arranged outside the rotating shaft.

[0095] When the first traction rope 42 moves towards the foot pedal 20, the movable assembly 60 above the fixed pulley 44 is driven to move towards the locking member 30 through the reversing transmission of the fixed pulley 44, so that the locking member 30 is driven to move towards the wheel body 302 to brake.

[0096] Since the first traction rope 42 is a flexible structure, it can only pull the object to move forward, and cannot drive the object to move backward when returning. Therefore, when the first traction rope 42 moves away from the foot pedal 20, the locking member 30 is driven to move away from the wheel body 302 to release the brake. Figure 6 Optionally, the movable assembly 60 comprises a movable member 61 and a first elastic member 62. The movable member 61 is slidably arranged in the accommodating cavity. The first elastic member 62 is arranged between the accommodating cavity and the movable member 61 and is used to drive the movable member 61 to move away from the wheel body 302.

[0097] The first elastic member 62 is used to store energy when the movable assembly 60 moves towards the locking member 30, and is used to release the energy when the first traction rope 42 moves away from the foot pedal 20, so as to drive the movable member 61 and the movable assembly 60 to move away from the locking member 30.

[0098] The first elastic member 62 can be a spring, the first elastic member 62 can be sleeved on the movable element 61, one end of the first elastic member 62 can abut against one end of the movable element 61, the other end of the first elastic member 62 can abut against the protrusion on the inner wall of the accommodating cavity, one end of the movable element 61 can be connected with the first traction rope 42, and the other end of the movable element 61 can be directly connected with the locking element 30; when the first traction rope 42 drives the movable element 61 to move towards the locking element 30, and then drives the locking element 30 to move towards the brake disc 50, the movable element 61 can drive the one end of the first elastic member 62 connected with the movable element 61 to move towards the other end of the first elastic member 62, so as to compress the first elastic member 62; when the first elastic member 62 is compressed under force, the first elastic member 62 can store force, so that when the first traction rope 42 moves away from the pedal 20 and the movable element 61 no longer exerts tension on the first elastic member 62, the first elastic member 62 can return to stretch, so as to drive the movable element 61 to move away from the locking element 30, and the movable element 61 can drive the locking element 30 to move away from the brake disc 50, so as to unlock the wheel body 302 of the wheel assembly 300.

[0099] In this way, under the premise that the movable element 61 is driven to move by the first traction rope 42 to lock the wheel body 302 of the wheel assembly 300, the movable element 61 can return to stretch through the first elastic member 62, so as to realize the unlocking operation of the wheel body 302.

[0100] In other embodiments of the utility model, when the first traction rope 42 drives the movable element 61 to move towards the locking element 30 to brake, the first elastic member 62 can also store force by stretching, the one end of the first elastic member 62 connected with the movable element 61 moves away from the other end of the movable element 61, when the first traction rope 42 moves away from the pedal 20 and the first traction rope 42 no longer exerts tension on the movable element 61, the movable element 61 no longer exerts stretching force on the first elastic member 62, the first elastic member 62 drives the movable element 61 to move away from the locking element 30 by returning to reset, so as to realize the unlocking operation of the wheel body 302, which is not limited herein.

[0101] In the embodiment, the pedal 20 realizes transmission through the first traction rope 42, and the first traction rope is flexible, so that the brake structure can be applied to the curved structure of the cross strut 10 or other parts of the frame.

[0102] In other embodiments, the transmission structure can also be realized by using other existing technologies, for example, a sliding element is arranged on the cross strut 10 in a sliding mode, the sliding element is driven to slide towards the movable assembly 60 by the pedal 20, and then the movable assembly 60 is driven to move to realize locking.

[0103] When the brake mechanism 100 of the utility model is applied to different styles of baby carriages 1000, when the transmission structure 40 of the brake mechanism 100 is installed on the wheel seat 301, in order to enable the movable assembly 60 to adapt to the installation of wheel seats 301 of different sizes and shapes, a flexible second traction rope 63 can also be arranged, which is connected with the movable part 61 and the locking part 30, so that the movement direction of the locking part 30 can be inconsistent with the movement direction of the transmission structure 40, and the setting position of the locking part 30 is no longer limited by the shape of the wheel seat 301. The relevant settings are as follows, refer to Figure 5 、 Figure 7 The movable assembly 60 further comprises a second traction rope 63 and a second elastic part 64, the second traction rope 63 is connected with the movable part 61 and the locking part 30, one end of the second elastic part 64 is connected with the locking part 30, and the other end of the second elastic part 64 is used for connecting the wheel seat 301;

[0104] When the movable assembly 60 moves away from the wheel body 302, the second traction rope 63 is used for pulling the locking part 30 to move away from the brake disc 50, and the second elastic part 64 is used for storing force; when the movable assembly 60 moves towards the wheel body 302, the second elastic part 64 is used for releasing force to push the locking part 30 to move towards the brake disc 50;

[0105] The elastic force of the second elastic part 64 is smaller than that of the first elastic part 62.

[0106] In this way, when the movement direction of the movable assembly 60 is inconsistent with the movement direction of the locking part 30 towards the brake disc 50, the movement of the movable assembly 60 can drive the locking part 30 to move, thereby facilitating the locking and unlocking operation of the locking part 30 on the brake disc 50. Therefore, the locking part 30 can move towards or away from the brake disc 50 along the optimal movement direction, and the brake disc 50 is locked or unlocked.

[0107] The second elastic part 64 can be a spring, one end of the second elastic part 64 can abut against one end of the locking part 30 away from the brake disc 50, and the other end of the second elastic part 64 can abut against a protruding part 3011 arranged on the wheel seat 301. When the movable assembly 60 moves towards the locking part 30, the locking part 30 can be pulled away from the brake disc 50 by the second traction rope 63, at this time, one end of the second elastic part 64 moves towards the other end of the second elastic part 64 along with the locking part 30, and the second elastic part 64 is compressed to store force. When the movable assembly 60 moves towards the locking part 30, the second elastic part 64 is stretched and reset to release force, and drives the locking part 30 to move towards the brake disc 50 to lock the brake disc 50.

[0108] In addition, in order to improve the accuracy of the movement of the locking member 30, a sliding track can be arranged on the wheel seat 301, and the locking member 30 is slidably arranged on the sliding track and can move towards or away from the brake disc 50. In this way, the accuracy of the movement direction of the locking member 30 can be ensured, and the movement position of the locking member 30 can be prevented from deviating.

[0109] In the utility model, when the transmission structure 40 is provided with the first elastic member 62 and the second elastic member 64, the elastic force of the second elastic member 64 is smaller than the elastic force of the first elastic member 62. In this way, the elastic force of the second elastic member 64 can be prevented from being too large and exceeding the elastic force of the first elastic member 62, and when the locking member 30 moves away from the brake disc 50, the force released by the reset of the first elastic member 62 is smaller than the force required for the compression of the second elastic member 64, so that the second elastic member 64 cannot be compressed and thus cannot drive the locking member 30 to move away from the brake disc 50 to perform the brake releasing operation.

[0110] The related structure of the pedal member 20 and the connection between the pedal member 20 and the cross support will be introduced below. Referring to FIGS. 1 to 3, Figure 2 、 Figure 3 、 Figure 9 In an embodiment, the pedal member 20 includes a rotating part 21 and a pedal part 22, the rotating part 21 is rotatably arranged on the cross support 10, and the pedal part 22 is connected to the rotating part 21. When the pedal member 20 is in the first position, the pedal part 22 is close to the lower side of the rotating part 21, and when the pedal member 20 is in the second position, the pedal part 22 is close to the upper side of the rotating part 21.

[0111] In the utility model, the cross support 10 can be set as a columnar part at the position for installing the foot rest 20, the cross section of the cross support 10 at the position can be set as a circle, the rotating part 21 can rotate around the columnar part as an axis, the rotating part 21 can include a first half shell part 21a and a second half shell part 21b, the first half shell part 21a and the second half shell part 21b are spliced to form a cylindrical structure and are sleeved on the columnar part of the cross support 10, so that the foot rest 20 can rotate around the columnar part of the cross support 10 through the rotating part 21.When the foot rest 20 is at the first position, the foot rest part 22 is close to the lower side of the rotating part 21, that is, the foot rest 20 is at the first position by the way of stepping on the foot rest part 22 with the foot, when the foot rest 20 is at the second position, the foot rest part 22 is close to the upper side of the rotating part 21, that is, the foot rest 20 is at the second position by the way of lifting the foot rest part 22 with the foot. Thus, the operation of braking and unbraking can be realized by the way of stepping on and lifting the foot rest part 22, the operation of braking and unbraking is convenient, the action is clear and easy to identify, and the foot rest 20 does not need to be operated by the hand. Among them, for the operation mode of the foot rest 20, the utility model is not limited to the operation mode of stepping on and lifting, but also can be operated by the hand or tool, the operation of the foot rest 20 between the first position and the second position can be realized, and the braking and unbraking can be realized.

[0112] In the above embodiment, the first half shell part 21a can be integrally connected with the foot rest part 22, and the second half shell part 21b can be detachably connected with the second half shell part 21b, so that the foot rest 20 can be conveniently installed on the columnar part of the cross support 10. Moreover, two sleeves can be arranged on the columnar part, and when the first half shell part 21a and the second half shell part 21b are spliced and assembled on the columnar part, the rotating part 21 formed by the splicing of the first half shell part 21a and the second half shell part 21b can be limited by the two sleeves, so that the first half shell part 21a and the second half shell part 21b are prevented from being separated.

[0113] In addition, anti-skid lines can be arranged on the upper end face of the foot rest part 22, when the front face of the foot rest part 22 is stepped on with the foot, the foot rest part 22 is moved downward, the stepped part is prevented from slipping, and the braking is affected. Moreover, the anti-skid lines can also be arranged on the lower end face of the foot rest part 22, when the front face of the foot rest part 22 is contacted with the foot, the foot rest part 22 is lifted upward, the foot rest part 22 is prevented from slipping when being lifted, and the unbraking is affected.

[0114] Reference Figure 9 , Figure 11As shown in the figure, in an embodiment, the transmission structure 40 further comprises a post 43, the post 43 is connected with the first traction rope 42, the rotating part 21 is provided with an inclined waist groove 211, the post 43 is movably arranged in the inclined waist groove 211, the inclined waist groove 211 has a first end 211a and a second end 211b, the second end 211b is located between the first end 211a and the pedal part 22, the first end 211a is close to the locking part 30, and the second end 211b is away from the locking part 30, when the locking part 30 is in the first position, the post 43 is located at the second end 211b, and when the locking part 30 is in the second position, the post 43 is located at the first end 211a.

[0115] In this way, when the pedal part 22 is stepped and moved downward, the post 43 can be driven to slide from the first end 211a to the second end 211b, because the first end 211a is close to the locking part 30 and the second end 211b is away from the locking part 30, the post 43 can be moved toward the direction away from the locking part 30 when the pedal part 22 is moved downward, so that the post 43 drives the first traction rope 42 to move toward the direction close to the pedal part 20, and then drives the movable assembly 60 to move toward the locking part 30, so that the locking part 30 can lock the brake disc 50, when the pedal part 22 is lifted and moved upward, the post 43 can be driven to slide from the second end 211b to the first end 211a, so that the post 43 is moved toward the direction away from the pedal part 20, and then the first traction rope 42 is driven to move toward the direction away from the pedal part 20, so that the movable assembly 60 can be reset, the locking part 30 is pulled up, and the brake disc 50 is unlocked.

[0116] When the post 43 slides in the inclined waist groove 211 and drives the first traction rope 42 to move, in order to prevent the post 43 from being circumferentially deflected due to the rotation of the rotating part 21 when the post 43 moves, as shown in the figure, Figure 9 , Figure 10 Optionally, the cross support 10 is provided with a cross waist groove 11, the cross waist groove 11 is arranged along the axial direction of the rotating part 21, the post 43 is movably arranged in the cross waist groove 11, the cross waist groove 11 has a third end 111 close to the locking part 30 and a fourth end 112 away from the locking part 30, when the locking part 30 is in the first position, the post 43 is located at the fourth end 112, and when the locking part 30 is in the second position, the post 43 is located at the third end 111.

[0117] The transverse groove 11 can extend along the axial direction of the rotating part 21. When the rotating part 21 rotates and drives the column 43 to move, the column 43 also moves along the transverse groove 11 and reciprocates between the third end 111 and the fourth end 112. In this way, the movement of the column 43 can be limited by the transverse groove 11, so that the column 43 will not deflect circumferentially with the rotation of the rotating part 21, and the column 43 will not be unable to reciprocate between the first end 211a and the second end 211b.

[0118] Furthermore, to ensure that the foot pedal 20 does not return to its original position when it is in the first position and released, the section with the second end 211a in the inclined groove 211 can be configured as a vertical section. This vertical section is perpendicular to the extending direction of the horizontal groove 11. With this configuration, when the column 43 is located at the second end 211b of the vertical section, it abuts against the inner wall of the vertical section of the inclined groove 211 and will not slide along the horizontal groove 11 towards the third end 111. 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 43 to leave the vertical section, will the column 43 slide along the horizontal groove 11 to the third end 111, releasing the brake from the stroller 1000.

[0119] In this utility model, a first limiting sleeve and a second limiting sleeve can be provided at both ends of the column member 43. The outer diameter of the first limiting sleeve and the second limiting sleeve is larger than the width of the inclined waist groove 211 and the horizontal waist groove 11. In this way, when the column member 43 slides in the inclined waist groove 211 and the horizontal waist groove 11, the column member 43 will not fall out of the horizontal waist groove 11 and the inclined waist groove 211, so that the inclined waist groove 211 and the horizontal waist groove 11 cannot effectively guide the movement of the column member 43.

[0120] See Figure 3 , Figure 5 As shown, 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.

[0121] Thus, the brake effect on the child's vehicle 1000 and the portability of the brake operation can be improved when the brake mechanism 100 is applied to the child's vehicle 1000. The two symmetrical inclined waist grooves 211 can be arranged on the rotating part 21 of the locking member 30, and the two symmetrical inclined waist grooves 211 are used to install the column members 43 of the two sets of transmission structures 40. The two symmetrical inclined waist grooves 11 can be arranged on the columnar part of the cross support 10, and the two symmetrical inclined waist grooves 11 are used to limit the movement of the column members 43. In addition, two brake discs 50 can be arranged, and the two brake discs 50 are used to lock and unlock the two wheel bodies 302 in cooperation with the two locking members 30.

[0122] Referring to Figure 3 , Figure 8 , Figure 10 As shown in FIGS. 1 to 3, in an embodiment, the cross support 10 includes a first cross support segment 101, a second cross support segment 102, and a third cross support segment 103. The first cross support segment 101 is arranged between the second cross support segment 102 and the third cross support segment 103. The second cross support segment 102 is bent to connect the first cross support segment 101 and the third cross support segment 103. Thus, when the brake mechanism 100 is arranged on the child's vehicle 1000, the cross support 10 can be retracted into the child's vehicle 1000, so that the footrest 20 does not protrude from the child's vehicle 1000. Thus, the footrest 20 will not be accidentally touched when the child's vehicle 1000 is used, and the brake of the child's vehicle 1000 will not be triggered.

[0123] In the embodiment, the brake is realized through the cooperation between the transmission structure 40 and the movable assembly 60 arranged independently. When the wheel assembly is a universal wheel structure, the wheel assembly can be steered, and the brake can still be realized when the wheel assembly is steered in any direction. Thus, the interference or damage of the brake structure caused by the steering of the wheel assembly can be effectively avoided.

[0124] The utility model also provides a child's vehicle 1000. The child's vehicle 1000 includes a vehicle frame 200, a wheel assembly 300, and a brake mechanism 100. The specific structure of the brake mechanism 100 is referred to the above-mentioned embodiments. Since the child's vehicle 1000 adopts all the technical solutions of the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved. Here, the cross support 10 of the brake mechanism 100 is arranged on the vehicle frame 200. At least one of the front wheel assembly and the rear wheel assembly is provided with the brake mechanism 100.

[0125] At least one of the front wheel assembly and the rear wheel assembly is a universal wheel structure, or both the front wheel assembly and the rear wheel assembly are universal wheel structures.

[0126] The frame 200 has a forward use state and a backward use state, and the front wheel assembly and the rear wheel assembly are both provided with the brake mechanism.

[0127] When the front wheel assembly and the rear wheel assembly of the child car 1000 are provided with the brake mechanism 100, and the front wheel assembly and the rear wheel assembly are both universal wheel structures, the child car 1000 can be braked by stepping on the pedal 20 and unbraked by lifting the locking piece 30, so as to improve the portability of the brake. Of course, the pedal 30 can be operated by stepping and lifting, and can also be operated by hand. The frame 200 can be pushed forward and walked with the child car 1000, and can also be pulled backward and walked with the child car 1000. When actually operating the brake, the wheels of the front wheel assembly and the rear wheel assembly that do not rotate in the universal direction can be braked, and the wheels of the front wheel assembly and the rear wheel assembly that rotate in the universal direction can also be braked, which is not limited herein.

[0128] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, within the technical concept of the present application, as described in the present application and the drawings, are included in the patent protection scope of the present application.

Claims

1. A braking mechanism, mounted on a vehicle frame, characterized in that, The application relates to a vehicle, which comprises: a pedal member movably arranged between a first position and a second position on a crossbar of the vehicle frame; a locking member arranged on a wheel seat of a wheel assembly and used for locking or unlocking a wheel body of the wheel assembly, wherein the wheel assembly is a universal wheel structure or a directional wheel structure; and a transmission structure movably connected to the pedal member relative to the crossbar; a movable assembly movably arranged on the wheel seat and connected to the locking member; when the pedal member is switched from the second position to the first position, the transmission structure drives the movable assembly to drive the locking member to lock the wheel body of the wheel assembly.

2. The brake mechanism of claim 1, wherein, The brake mechanism further comprises a brake disc arranged on the wheel body along an axial direction of the wheel body, and the locking member is used for moving along a radial direction of the brake disc to lock or unlock the brake disc so as to lock or unlock the wheel body; a plurality of locking grooves are arranged on an outer circumferential side of the brake disc, the locking member is provided with a locking block protruding towards the locking grooves, and the locking block is inserted into the locking grooves to lock the brake disc.

3. The brake mechanism of claim 2, wherein, The wheel assembly is a universal wheel structure, and the wheel assembly is connected to the wheel seat through a rotating shaft extending along a first direction; the movable assembly is connected to the rotating shaft and rotates with the rotating shaft.

4. The brake mechanism of claim 3, wherein The movable assembly is coaxially arranged with the rotating shaft; the rotating shaft has a receiving cavity extending along the first direction, and the movable assembly is slidably arranged in the receiving cavity; an upper end of the movable assembly is exposed from the receiving cavity, and the transmission structure acts on the upper end of the movable assembly when the pedal member is switched from the second position to the first position; or when the pedal member is switched from the second position to the first position, the transmission structure extends into the receiving cavity to act on the movable assembly.

5. The brake mechanism of claim 4, wherein, The transmission structure comprises a pressing block and a traction member, the pressing block is slidably arranged on the wheel seat, one end of the traction member is connected to the pressing block, and the other end of the traction member is connected to the pedal member; when the pedal member is switched from the second position to the first position, the pedal member drives the pressing block to move through the traction member, the movable assembly moves towards the wheel body, and the locking member locks the wheel body of the wheel assembly; the pressing block abuts against the upper end of the movable assembly.

6. The brake mechanism of claim 5, wherein, The traction member is a first traction rope; the transmission structure further comprises a fixed pulley rotatably arranged on the wheel seat, and the first traction rope is wound on the fixed pulley to realize reversing, so that the first traction rope is partially arranged in the wheel seat and partially arranged in the crossbar; the fixed pulley is arranged on an outer side of the rotating shaft, and the part of the first traction rope arranged in the wheel seat is arranged on the outer side of the rotating shaft.

7. The brake mechanism of claim 4, wherein, The movable assembly comprises a movable member and a first elastic member, the movable member is slidably arranged in the receiving cavity, and the first elastic member is arranged between the receiving cavity and the movable member and used for driving the movable member to move away from the wheel body. The movable assembly further comprises a second traction rope and a second elastic member, the second traction rope connects the movable member and the locking member, one end of the second elastic member is connected to the locking member, and the other end of the second elastic member is used to connect a wheel seat; When the movable assembly moves away from the wheel body, the second traction rope is used to pull the locking member to move away from the brake disc, and the second elastic member is used to store force; when the movable assembly moves towards the wheel body, the second elastic member is used to release force to push the locking member to move towards the brake disc; The elastic force of the second elastic member is smaller than the elastic force of the first elastic member.

8. The brake mechanism of claim 6, wherein, The foot pedal member comprises a rotating part and a foot pedal part, the rotating part is rotatably installed on the cross support, and the foot pedal part is connected to the rotating part; when the foot pedal member is in a first position, the foot pedal part is close to the lower side of the rotating part; and when the foot pedal member is in a second position, the foot pedal part is close to the upper side of the rotating part. The transmission structure further comprises a column member, the column member is connected to the first traction rope, the rotating part is provided with an inclined waist groove, the column member is movably arranged in the inclined waist groove, the inclined waist groove has a first end and a second end, the second end is located between the first end and the foot pedal part, 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 a first position, the column member is located at the second end; and when the locking member is in a second position, the column member is located at the first end. The cross support is provided with a transverse waist groove, the transverse waist groove extends along the axial direction of the rotating part, the column member is movably arranged in the transverse waist groove, the transverse waist groove has a third end close to the locking member and a fourth end away from the locking member; when the locking member is in a first position, the column member is located at the fourth end; and when the locking member is in a second position, the column member is located at the third end.

9. The brake mechanism of claim 1, wherein, The locking member and the transmission structure are provided with two groups, two locking members are respectively arranged on the wheel seats at the two ends of the cross support, and two transmission structures are respectively arranged on the two sides of the foot pedal member; each transmission structure is in transmission connection with the foot pedal member and each locking member. The cross support comprises a first cross support section, a second cross support section and a third cross support section, the first cross support section is arranged between the second cross support section and the third cross support section, and the second cross support section is bent to connect the first cross support section and the third cross support section.

10. A stroller, characterized by The brake mechanism comprises: The brake mechanism according to any one of claims 1 to 9; The stroller further comprises a frame and a wheel assembly arranged on the frame, the wheel assembly comprises 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 brake mechanism; At least one of the front wheel assembly and the rear wheel assembly is a universal wheel structure, or both the front wheel assembly and the rear wheel assembly are universal wheel structures; The frame has a forward use state and a rearward use state, and the front wheel assembly and the rear wheel assembly are both provided with the brake mechanism.

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