Brake device and baby stroller

Abstract

The utility model belongs to the technical field of baby strollers, and discloses a brake device and a baby stroller, the brake device comprises a horizontal pipe, a brake pedal, a linkage assembly and a brake assembly; the brake pedal is rotationally connected with the transverse pipe; the linkage assembly comprises a driving piece, transmission blocks, a first elastic piece and a traction cable, the brake pedal is rotationally connected with the transverse pipe, the driving piece and the brake pedal rotate synchronously, the driving piece is in transmission connection with the two transmission blocks, and the first elastic piece is arranged between the two transmission blocks and connected with the two transmission blocks; the end, away from the first elastic piece, of each transmission block is connected with a traction cable. The brake assembly comprises two brake pins, and the two brake pins are connected with the two traction cables correspondingly, so that the brake pins can be selectively inserted into or slide out of the brake holes. Thus, the first elastic piece is arranged between the two transmission blocks, the transmission blocks can limit the first elastic piece, the number of parts is reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby strollers, in particular to a brake device and a baby stroller. Background Art

[0002] A baby stroller usually includes a frame and a sunshade, a seat cushion, a sleeping basket, and an anti-haze cover installed on the frame. In order to facilitate the movement of the frame, the frame is connected to a front wheel, a rear wheel, and a brake device through a wheel seat.

[0003] The brake device usually includes a pedal, a brake part, a transmission block, an elastic part, a cross tube, a traction line and a brake pin. The pedal and the brake part are arranged outside the cross tube, and the transmission block, the elastic part and the traction line are arranged inside the cross tube. One transmission block is connected to an elastic part. The pedal is arranged to rotate synchronously with the brake part, and is connected to the two transmission blocks arranged at both ends of the brake part through a transmission pin. When the brake part rotates, the transmission block drives the traction line and the brake pin to move under the action of the elastic part, so that the brake pin can be selectively inserted into or slide out of the brake hole on the rear wheel hub to achieve braking.

[0004] However, when assembling the brake device, in order to limit the position of the elastic member and the transmission block in the cross tube, additional fixing members need to be added, thereby increasing the number of overall parts of the brake device, making the assembly more complicated and the assembly efficiency low. Utility Model Content

[0005] The utility model aims to provide a brake device and a baby stroller to solve the problem of low assembly efficiency of the brake device.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a brake device is used to be connected to a wheel seat, wherein two wheel seats are provided, one of the wheel seats is correspondingly connected to a wheel, and a brake hole is provided on the wheel, wherein the brake device comprises: a cross tube, wherein both ends of the cross tube are respectively connected to the sides of the two wheel seats close to each other; a brake pedal, wherein the brake pedal is rotatably connected to the cross tube; a linkage assembly, wherein the linkage assembly comprises a driving member, a transmission block, a first elastic member, and a traction rope, wherein the driving member rotates synchronously with the brake pedal, the transmission block, the first elastic member, and the traction rope are all arranged in the cross tube, wherein two transmission blocks are provided, wherein the driving member is transmission-connected to the two transmission blocks for driving the two transmission blocks to move in a direction of approaching or moving away from each other, wherein the first elastic member is arranged between the two transmission blocks and connected to the two transmission blocks, and wherein one end of each transmission block facing away from the first elastic member is connected to a traction rope; a brake assembly, wherein the brake assembly comprises two brake pins, wherein the two brake pins are respectively connected to the two traction ropes, so that the brake pins can be selectively inserted into or slid out of the brake hole.

[0008] Preferably, two driving members are provided, the two driving members are connected to the two transmission blocks in a one-to-one correspondence, and the two driving members are both sleeved on the transverse tube and rotatably connected to the transverse tube.

[0009] Preferably, the driving member is provided with a release position and a braking position, the transmission block is connected with a fixing pin, and the cross tube is provided with a sliding groove for the fixing pin to slide, so that the fixing pin can be selectively moved to the release position or the braking position.

[0010] Preferably, the driving member is provided with a first groove and a second groove, the first groove is connected with the second groove, the brake position is arranged in the first groove, the release position is arranged in the second groove, and the first groove is arranged to protrude from the second groove on one side facing the second groove.

[0011] Preferably, the brake assembly also includes a pressure cover and a second elastic member, one wheel seat is correspondingly connected to one pressure cover and one second elastic member, the pressure cover is connected to the wheel seat, one end of the second elastic member is connected to the brake pin, and the other end is connected to the pressure cover.

[0012] Preferably, the brake device further comprises a positioning boss, wherein the positioning boss is arranged at one end of the transmission block facing the first elastic member; and / or the positioning boss is arranged at one end of the brake pin facing the second elastic member.

[0013] Preferably, the first elastic member is a spring; and / or the second elastic member is a spring.

[0014] Preferably, the linkage assembly further comprises a connecting pipe, the connecting pipe is sleeved on the transverse pipe and is rotatably connected to the wheel seat, and the brake pedal is fixedly connected to the connecting pipe.

[0015] Preferably, the brake pedal comprises an upper cover and a lower cover, the upper cover is buckled and connected to the lower cover, and the driving member is arranged between the upper cover and the lower cover.

[0016] On the other hand, a baby stroller includes a body, a wheel seat and the brake device as described above, wherein the wheel seat is rotatably connected to wheels, the wheels include a front wheel and a rear wheel, and the brake device is connected to the rear wheel.

[0017] Beneficial effects of the utility model:

[0018] A brake device, used to be connected with a wheel seat, wherein two wheel seats are provided, one of the wheel seats is correspondingly connected with a wheel, and a brake hole is provided on the wheel, wherein the brake device comprises a cross tube, a brake pedal, a linkage assembly and a brake assembly, wherein the two ends of the cross tube are respectively connected with the sides of the two wheel seats close to each other; the brake pedal is rotatably connected with the cross tube; the linkage assembly comprises a driving member, a transmission block, a first elastic member, and a traction rope, wherein the driving member rotates synchronously with the brake pedal, the transmission block, the first elastic member, and the traction rope are all arranged in the cross tube, the transmission blocks are provided with two, the driving member is transmission-connected with the two transmission blocks, and is used to drive the two transmission blocks to move in a direction of approaching or moving away from each other, the first elastic member is arranged between the two transmission blocks and is connected with the two transmission blocks, and one end of each transmission block away from the first elastic member is connected with a traction rope; the brake assembly comprises two brake pins, and the two brake pins are respectively connected with the two traction ropes, so that the brake pins can be selectively inserted into or slid out of the brake hole.

[0019] In this way, when assembling the brake device, the first elastic member is arranged between the two transmission blocks, so that after the first elastic member and the transmission block are respectively installed inside the cross tube, the transmission block can limit the first elastic member, thereby reducing the difficulty of assembly and improving the assembly efficiency; the first elastic member can provide elastic force to the two transmission blocks at the same time, thereby reducing the number of parts and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a brake device in one embodiment of the utility model;

[0021] Figure 2 This is an exploded view of a brake device in one embodiment of the utility model;

[0022] Figure 3It is a partial structural schematic diagram of a brake device in a brake-release state in one embodiment of the utility model;

[0023] Figure 4 It is a partial structural schematic diagram of the brake device in a braking state in one embodiment of the utility model;

[0024] Figure 5 In one embodiment of the utility model Figure 2 The enlarged view of point A is shown;

[0025] Figure 6 In one embodiment of the utility model Figure 2 An enlarged view of point B is shown.

[0026] In the figure:

[0027] 1. wheel seat; 11. wheel; 111. brake hole; 12. mounting portion; 2. transverse tube; 21. sliding groove; 3. brake pedal; 31. upper cover; 32. lower cover; 4. linkage assembly; 41. driving member; 411. brake release position; 412. brake position; 413. first groove; 4131. first surface; 4132. second surface; 414. second groove; 415. positioning block; 42. transmission block; 421. fixing pin; 43. first elastic member; 44. traction rope; 45. connecting pipe; 5. brake assembly; 51. brake pin; 52. pressure cover; 53. second elastic member; 6. positioning boss. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] See also Figure 1 and Figure 2 The utility model provides a brake device, which is used to be connected with a wheel seat 1. Two wheel seats 1 are provided. One wheel seat 1 is correspondingly connected with a wheel 11. The wheel 11 is provided with a brake hole 111. The brake device comprises a transverse tube 2, a brake pedal 3, a linkage assembly 4 and a brake assembly 5. The two ends of the transverse tube 2 are respectively connected with the sides of the two wheel seats 1 close to each other, and the brake pedal 3 is rotatably connected with the transverse tube 2. Among them, the two ends of the transverse tube 2 are respectively fixedly connected with the sides of the two wheel seats 1 close to each other, and the sides of the two wheel seats 1 close to each other are connected with a mounting portion 12. The two ends of the transverse tube 2 are respectively connected with the mounting portion 12 through pins, and the brake pedal 3 is sleeved in the middle position of the transverse tube 2.

[0033] Further, see Figure 1 and Figure 2 The linkage assembly 4 includes a driving member 41, a transmission block 42, a first elastic member 43, and a traction rope 44. The driving member 41 rotates synchronously with the brake pedal 3. The transmission block 42, the first elastic member 43, and the traction rope 44 are all arranged in the cross tube 2. Two transmission blocks 42 are provided. The driving member 41 is transmission-connected with the two transmission blocks 42 for driving the two transmission blocks 42 to move in a direction approaching or moving away from each other. The first elastic member 43 is arranged between the two transmission blocks 42 and is connected to the two transmission blocks 42. A traction rope 44 is connected to one end of each transmission block 42 away from the first elastic member 43.

[0034] See also Figure 2The brake assembly 5 includes two brake pins 51 , which are respectively connected to the two traction ropes 44 , so that the brake pins 51 can be selectively inserted into or slid out of the brake hole 111 .

[0035] In this embodiment, the two transmission blocks 42 are slidably connected to the cross tube 2, and the two transmission blocks 42 slide along the length direction of the cross tube 2. One end of one transmission block 42 close to the other transmission block 42 abuts against the first elastic member 43, and the end away from the other transmission block 42 is fixedly connected to the traction rope 44.

[0036] It should be noted that when the stroller needs to brake, the brake pedal 3 is stepped on to rotate downward, driving the transmission block 42 to move in the direction of approaching or moving away from each other in the cross tube 2, so that the traction rope 44 drives the brake pin 51 to insert into the brake hole 111, so as to brake the wheel 11; when the brake needs to be released, the brake pedal 3 is lifted and rotated upward, driving the transmission block 42 to move in the opposite direction and driving the brake pin 51 to slide out of the brake hole 111 through the traction rope 44, so as to restore the normal rotation of the wheel 11; the first elastic member 43 can provide elastic force to keep the transmission block 42 in contact with the driving member 41.

[0037] In this way, compared with the prior art in which a first elastic member 43 is configured for one transmission block 42, by setting the elastic member between the two transmission blocks 42, the transmission block 42 can limit the elastic member without the need to set up other additional fixing members, and one first elastic member 43 can provide elastic force to the two transmission blocks 42, which can reduce the number of parts and improve assembly efficiency.

[0038] It can be understood that the traction rope 44 can be connected to the transmission block 42 on the same side or connected to the transmission block 42 on different sides. When the traction rope 44 is connected to the transmission block 42 on the same side, the brake pin 51 is inserted into the brake hole 111 when the transmission block 42 moves in a direction away from each other. When the traction rope 44 is connected to the transmission blocks 42 on different sides, the brake pin 51 is inserted into the brake hole 111 when the transmission blocks 42 move in a direction approaching each other. Which transmission block 42 the traction rope 44 is connected to can be adjusted according to actual needs, so that the transmission block 42 can drive the brake pin 51 to move through the traction rope 44. In this embodiment, the traction rope 44 is connected to the transmission block 42 on the same side.

[0039] See also Figure 2 In some embodiments, two driving members 41 are provided, and the two driving members 41 are connected to the two transmission blocks 42 in a one-to-one correspondence. The two driving members 41 are both sleeved on the cross tube 2 and rotatably connected to the cross tube 2.

[0040] In this embodiment, a positioning block 415 is provided at one end of the two driving members 41 that are away from each other, and a positioning groove (not shown in the figure) is opened inside the brake pedal 3 at a position corresponding to the positioning block 415. When the positioning block 415 is placed in the positioning groove, the brake pedal 3 and the two driving members 41 are both engaged, thereby realizing the synchronous rotation of the brake pedal 3 and the driving member 41.

[0041] In this way, the driving members 41 and the transmission blocks 42 correspond one to one, so that when a group of driving members 41 or transmission blocks 42 fails, it will not affect the normal operation of the driving members 41 and transmission blocks 42 on the other side, so that the corresponding wheels 11 on the other side can be braked, and the installation and maintenance process is simplified, making it convenient for staff to quickly assemble the brake device and repair the faulty parts separately.

[0042] It is understandable that the driving member 41 can also be connected to the brake pedal 3 by bolts or rivets. The connection method between the driving member 41 and the brake pedal 3 can be flexibly adjusted according to actual needs, as long as the driving member 41 and the brake pedal 3 can rotate synchronously. No more examples are given here.

[0043] See also Figure 2-Figure 4 In some embodiments, a release position 411 and a brake position 412 are provided on the driving member 41, a fixing pin 421 is connected to the transmission block 42, and a sliding groove 21 for the fixing pin 421 to slide is provided on the cross tube 2, so that the fixing pin 421 can be selectively moved to the release position 411 or the brake position 412.

[0044] In this embodiment, the fixing pin 421 is arranged in a one-to-one correspondence with the transmission block 42, and the fixing pin 421 is fixedly arranged at one end of the transmission block 42 facing the first elastic member 43, the length direction of the sliding groove 21 is parallel to the length direction of the cross tube 2, and the end of the fixing pin 421 away from the transmission block 42 passes through the sliding groove 21 and abuts against the driving member 41.

[0045] It should be noted that when the driving member 41 is driven to rotate by the brake pedal 3, since the driving member 41 abuts against the fixing pin 421, it can drive the fixing pin 421 to slide in the sliding groove 21, thereby moving the fixing pin 421 to the release position 411 or the braking position 412, and then causing the brake pin 51 to slide out of or insert into the brake hole 111 under the action of the traction rope 44, thereby realizing the release action or braking action.

[0046] In this way, the driving member 41 and the transmission block 42 are connected through the fixed pin 421, which can quickly realize the brake release action or braking action. In addition, when assembling the brake device, the first elastic member 43 is first placed in the cross tube 2, and the two transmission blocks 42 are respectively installed from both ends of the cross tube 2, so that the transmission block 42 is moved to the corresponding sliding groove 21, and the fixed pin 421 is installed on the corresponding transmission block 42. Then, the fixed pin 421 is connected to the driving member 41, so as to realize the limitation of the transmission block 42 and the first elastic member 43, simplify the assembly steps, and improve the assembly efficiency.

[0047] See also Figure 3 In some embodiments, the driving member 41 is provided with a first groove 413 and a second groove 414, the first groove 413 is connected to the second groove 414, the brake position 412 is arranged in the first groove 413, the release position 411 is arranged in the second groove 414, and the first groove 413 is arranged to protrude from the second groove 414 on one side facing the second groove 414.

[0048] Among them, the first groove 413 includes a first surface 4131 and a second surface 4132. The first surface 4131 is arranged on the side of the first groove 413 away from the second groove 414. The length direction of the first surface 4131 is parallel to the length direction of the driving member 41. The second surface 4132 is arranged at an angle to the first surface 4131 and is connected to the second groove 414. The first surface 4131 and the second surface 4132 together form an oblique first groove 413, and the second groove 414 is a semicircular groove.

[0049] Furthermore, the included angle between the first surface 4131 and the second surface 4132 is an acute angle, the brake position 412 is disposed at the connection between the first surface 4131 and the second surface 4132 , and the first groove 413 extends toward one side of the second groove 414 in a direction close to the first elastic member 43 .

[0050] When the brake pedal 3 drives the driving member 41 to rotate, the fixing pin 421 slides in the first groove 413 and the second groove 414 under the action of the first elastic member 43. When the fixing pin 421 moves to the braking position 412, the brake pin 51 is inserted into the brake hole 111. When the fixing pin 421 moves to the brake release position 411, the brake pin 51 slides out of the brake hole 111, so as to realize the state switching between the braking and releasing state of the baby stroller. When the fixing pin 421 is located in the second groove 414, since the first groove 413 is protruded toward one side of the second groove 414, the fixing pin 421 can be stably clamped in the second groove 414, and is not easy to slide from the second groove 414 to the first groove 413 due to shaking and the influence of the first elastic member 43, thereby avoiding misoperation and unstable braking state, and improving the safety of the brake device. During assembly, after the transmission block 42 and the first elastic member 43 are installed on the cross tube 2, the driving member 41 is sleeved on the cross tube 2 and clamped with the corresponding fixing pin 421, thereby improving the assembly efficiency.

[0051] It is understandable that the shapes of the first groove 413 and the second groove 414 can be adjusted according to actual needs, and no further details are given here.

[0052] See also Figure 2 In some embodiments, the brake assembly 5 also includes a pressure cover 52 and a second elastic member 53. One wheel seat 1 is correspondingly connected to a pressure cover 52 and a second elastic member 53. The pressure cover 52 is connected to the wheel seat 1. One end of the second elastic member 53 is connected to the brake pin 51, and the other end is connected to the pressure cover 52.

[0053] Among them, the pressure cover 52 is arranged on the side where the wheel seat 1 is close to each other, and a protrusion (not shown in the figure) is arranged on the side of the pressure cover 52 facing the wheel seat 1, and a groove (not shown in the figure) is opened on the wheel seat 1 corresponding to the protrusion, and the pressure cover 52 and the wheel seat 1 are detachably connected through the cooperation of the protrusion and the groove; the two ends of the second elastic member 53 are respectively abutted against the side where the brake pin 51 and the pressure cover 52 are close to each other.

[0054] In this way, the pressure cover 52 can limit the brake pin 51 and the second elastic member 53, ensuring that the brake pin 51 can stably slide in the direction close to or away from the brake hole 111. During assembly, the end of the traction rope 44 connected to the brake pin 51 is extended out of the cross tube 2, and the brake pin 51 is installed on the wheel seat 1. The second elastic member 53 and the pressure cover 52 are installed on the wheel seat 1 in sequence to complete the assembly of the brake assembly 5, thereby improving the assembly efficiency.

[0055] It is understandable that the pressure cover 52 can also be detachably connected to the wheel seat 1 by means of bolts, snaps, etc., and is not limited to snap connection. The connection method between the pressure cover 52 and the wheel seat 1 can be flexibly adjusted according to actual needs. In this embodiment, the pressure cover 52 is connected to the wheel seat 1 by matching the protrusions and grooves, which can improve assembly efficiency and simplify assembly steps.

[0056] See also Figure 5 and Figure 6 In some embodiments, the brake device further includes a plurality of positioning bosses 6, which are respectively arranged at one end of the transmission block 42 facing the first elastic member 43 and one end of the brake pin 51 facing the second elastic member 53. In this embodiment, both the first elastic member 43 and the second elastic member 53 are springs. Furthermore, the second elastic member 53 is a compression spring.

[0057] The two ends of the first elastic member 43 are respectively sleeved on the two positioning bosses 6 connected to the driving member 41 , and the end of the second elastic member 53 away from the pressure cover 52 is sleeved on the positioning boss 6 connected to the brake pin 51 .

[0058] It is understandable that a positioning boss 6 may also be provided on the pressure cover 52 at a position corresponding to the second elastic member 53 so that both ends of the second elastic member 53 are limited.

[0059] In this way, when assembling the brake device, the positioning boss 6 can limit the first elastic member 43 and the second elastic member 53, avoiding the first elastic member 43 and the second elastic member 53 from shifting during assembly and use and affecting the braking and releasing effects, thereby improving the safety and assembly efficiency of the brake device.

[0060] See also Figure 2 In some embodiments, the linkage assembly 4 further includes a connecting pipe 45 , which is sleeved on the cross pipe 2 and rotatably connected to the wheel seat 1 , and the brake pedal 3 is fixedly connected to the connecting pipe 45 .

[0061] In this embodiment, two connecting pipes 45 are provided, and the two connecting pipes 45 are respectively arranged on both sides of the length direction of the brake pedal 3. The end of the connecting pipe 45 away from the brake pedal 3 is rotatably connected to the wheel seat 1, and the length direction of the connecting pipe 45 is parallel to the length direction of the cross pipe 2.

[0062] In this way, the connecting pipe 45 assembled to the cross pipe 2 can limit the brake pedal 3 and the driving member 41, thereby preventing the brake pedal 3 and the driving member 41 from shifting on the cross pipe 2, thereby improving assembly accuracy and assembly efficiency.

[0063] See also Figure 1 and Figure 2 In some embodiments, the brake pedal 3 includes an upper cover 31 and a lower cover 32 , the upper cover 31 is snap-fitted with the lower cover 32 , and the driving member 41 is disposed between the upper cover 31 and the lower cover 32 .

[0064] In this way, during assembly, the upper cover 31 and the lower cover 32 are buckled together to form the brake pedal 3, and the driving member 41 is located inside the brake pedal 3, so that the brake pedal 3 and the connecting pipe 45 cover the cross pipe 2, the driving member 41, the fixing pin 421 and other internal components, providing protection for the internal components so that they are not easily affected by the external environment, and making the overall structure more beautiful and simple.

[0065] It is understandable that the upper cover 31 and the lower cover 32 can also be detachably connected by bolts or buckles, and the connection method between the upper cover 31 and the lower cover 32 can be adjusted according to actual needs, which will not be listed in detail here.

[0066] The working principle of the brake device is as follows:

[0067] When braking is needed, the brake pedal 3 is pressed to drive the driving member 41 to rotate downward, so that the relative position of the driving member 41 and the fixing pin 421 changes, and the fixing pin 421 slides out of the second groove 414 and slides in the sliding groove 21. The first elastic member 43 in the compressed state releases the elastic force, driving the two fixing pins 421 to move in a direction away from each other until they slide to the brake position 412 of the driving member 41; the traction rope 44 gradually relaxes, so that the elastic force released by the second elastic member 53 in the compressed state overcomes the traction force of the traction rope 44 on the brake pin 51, and the brake pin 51 slides toward the brake hole 111 under the elastic force of the second elastic member 53 until it is inserted into the brake hole 111, thereby braking the wheel 11.

[0068] When the brake needs to be released, the brake pedal 3 is lifted upwards to make the fixing pin 421 slide from the brake position 412 along the second surface 4132 to the brake release position 411 in the second groove 414, and the fixing pin 421 moves in the direction of approaching each other, so that the first elastic member 43 is compressed, and the traction rope 44 is gradually tightened and applies traction to the brake pin 51, pulling the brake pin 51 to slide out of the brake hole 111 and compressing the second elastic member 53, thereby releasing the brake on the wheel 11 and allowing the wheel 11 to continue to rotate.

[0069] See also Figure 1 The utility model also provides a baby stroller, including a body (not shown in the figure), a wheel seat 1 and a brake device, the wheel seat 1 is rotatably connected to a wheel 11, the wheel 11 includes a front wheel and a rear wheel, and the brake device is connected to the rear wheel. In this embodiment, the brake pedal 3 includes a pedal portion (not shown in the figure), and the pedal portion is located on the side of the connecting pipe 45 away from the front wheel.

[0070] In this way, the brake device is connected to the rear wheel, so that the user can easily step on or lift the brake pedal 3 when pushing the baby stroller.

[0071] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A brake device, characterized in that: Used to be connected to a wheel seat (1), wherein two wheel seats (1) are provided, one wheel seat (1) is correspondingly connected to a wheel (11), and a brake hole (111) is provided on the wheel (11), and the brake device comprises: A transverse tube (2), wherein both ends of the transverse tube (2) are respectively connected to the sides of the two wheel seats (1) that are close to each other; A brake pedal (3), the brake pedal (3) being rotatably connected to the cross tube (2); A linkage assembly (4), the linkage assembly (4) comprising a driving member (41), a transmission block (42), a first elastic member (43), and a traction rope (44); the driving member (41) rotates synchronously with the brake pedal (3); the transmission block (42), the first elastic member (43), and the traction rope (44) are all arranged in the transverse tube (2); two transmission blocks (42) are provided; the driving member (41) is transmission-connected to the two transmission blocks (42) for driving the two transmission blocks (42) to move in a direction approaching or moving away from each other; the first elastic member (43) is arranged between the two transmission blocks (42) and is connected to the two transmission blocks (42); and one end of each transmission block (42) facing away from the first elastic member (43) is connected to a traction rope (44); A brake assembly (5), the brake assembly (5) comprising two brake pins (51), the two brake pins (51) being respectively connected to the two traction ropes (44), so that the brake pins (51) can be selectively inserted into or slid out of the brake hole (111).

2. The brake device according to claim 1, characterized in that: Two driving members (41) are provided, and the two driving members (41) are connected to the two transmission blocks (42) in a one-to-one correspondence. The two driving members (41) are both sleeved on the transverse tube (2) and are rotatably connected to the transverse tube (2).

3. The brake device according to claim 1, characterized in that: The driving member (41) is provided with a brake release position (411) and a brake position (412), the transmission block (42) is connected with a fixing pin (421), and the transverse tube (2) is provided with a sliding groove (21) for the fixing pin (421) to slide, so that the fixing pin (421) can be selectively moved to the brake release position (411) or the brake position (412).

4. The brake device according to claim 3, characterized in that: The driving member (41) is provided with a first groove (413) and a second groove (414), the first groove (413) is connected to the second groove (414), the brake position (412) is arranged in the first groove (413), the brake release position (411) is arranged in the second groove (414), and the first groove (413) is arranged to protrude from the second groove (414) on one side facing the second groove (414).

5. The brake device according to claim 1, characterized in that: The brake assembly (5) also includes a pressure cover (52) and a second elastic member (53), and one of the wheel seats (1) is correspondingly connected to one of the pressure covers (52) and one of the second elastic members (53). The pressure cover (52) is connected to the wheel seat (1), and one end of the second elastic member (53) is connected to the brake pin (51), and the other end is connected to the pressure cover (52).

6. The brake device according to claim 5, characterized in that: The brake device further comprises a positioning boss (6), wherein the positioning boss (6) is arranged at one end of the transmission block (42) facing the first elastic member (43); and / or the positioning boss (6) is arranged at one end of the brake pin (51) facing the second elastic member (53).

7. The brake device according to claim 5, characterized in that: The first elastic member (43) is a spring; and / or the second elastic member (53) is a spring.

8. The brake device according to any one of claims 1 to 7, characterized in that: The linkage assembly (4) further comprises a connecting pipe (45), wherein the connecting pipe (45) is sleeved on the transverse pipe (2) and is rotationally connected to the wheel seat (1), and the brake pedal (3) is fixedly connected to the connecting pipe (45).

9. The brake device according to any one of claims 1 to 7, characterized in that: The brake pedal (3) comprises an upper cover (31) and a lower cover (32), the upper cover (31) and the lower cover (32) are buckled and connected, and the driving member (41) is arranged between the upper cover (31) and the lower cover (32).

10. A baby stroller, characterized in that: The vehicle comprises a vehicle body, a wheel seat (1) and a brake device as claimed in any one of claims 1 to 9, wherein the wheel seat (1) is rotatably connected to a wheel (11), the wheel (11) comprises a front wheel and a rear wheel, and the brake device is connected to the rear wheel.

Images