A brake structure for a baby stroller

Abstract

The utility model discloses a brake braking structure for baby's handcart, the utility model technical scheme is equipped with second reset part in brake pedal cooperation, and brake pedal can reset after each activity, and brake pedal moves brake pin through drive portion after activity and makes the wheel group state change, and in order to be able to fix or release the position of brake pin after activity brake pedal, the brake mechanism is equipped with limit block, and simultaneously, the rear foot stand is equipped with the limit mechanism in cooperation in limit block, the utility model realizes the technical effect of brake single point control on the basis of eliminating the vamp contact demand, and it is convenient for daily use, and the utility model has the beneficial technical effect that operation is convenient through single point interaction when braking or releasing lock, and brake interaction is simple, and need not distinguish operation area.

Description

Technical Field

[0001] This utility model relates to the field of baby stroller technology, and in particular to a brake structure for baby strollers. Background Technology

[0002] As an essential item for infants and toddlers' daily outings, the safety and convenience of the braking system in strollers are always a core concern for users. Currently, most mainstream strollers on the market use mechanical brake pedals, locking or unlocking the wheels by stepping on them. However, traditional braking devices generally suffer from operational redundancy and inconvenient reset. During daily use of strollers, users still need to use their shoes to hook the pedal and release the brake in wet or muddy environments, leading to shoe damage and even operational errors. With increasing user demand for one-handed operation and contactless interaction, there is an urgent need for a technological solution that can automatically switch between braking and unlocking with a single action.

[0003] Existing technologies, exemplified by CN114802406A, propose a scheme for synchronous braking and unlocking of dual wheels through a linkage mechanism. Specifically, the first and second braking mechanisms are connected by a traction member; pressing one pedal locks both wheels, while pressing the other unlocks them. The locking and unlocking operations are performed in the same direction, avoiding the reverse pedaling action required in traditional technologies. However, while this technology partially solves the problem of the shoe upper contacting the pedals, it still suffers from a fragmented operational logic. In actual use, locking and unlocking actions must be performed separately at different locations (both pedals), requiring users to memorize the operating areas and potentially leading to misoperation in emergency situations.

[0004] In summary, existing technologies suffer from drawbacks such as complex braking interactions that require differentiation of operating areas. Users need to distinguish between the locking and unlocking pedal positions, and the operation process does not conform to the trend of single-point control in human-computer interaction. Utility Model Content

[0005] The main purpose of this invention is to propose a braking structure for baby strollers, which aims to solve the technical problem of complex braking interaction and the need to distinguish the operating areas in the existing technology.

[0006] To achieve the above objectives, this utility model proposes a brake structure for a baby stroller, comprising:

[0007] Wheel assembly, including a locking mechanism;

[0008] Brake pedal, which is movable relative to the wheel assembly, includes a pedal part and a drive part;

[0009] The braking mechanism includes a brake pin and a first reset component. The brake pin is movably disposed between the wheel assembly and the brake pedal. Whenever the pedal is subjected to external force, the brake pin can move toward the locking part through the action of the drive part, and the brake pin can return to its original position from the locking part toward the drive part through the first reset component. In addition, the brake pin is fitted with a rotatable limit block.

[0010] The rear footrest, located between the wheel assembly and the brake pedal, includes a limiting mechanism for locking the brake pin position in conjunction with a limiting block; and

[0011] The second reset component resets the brake pedal after an external force is applied to the pedal to create movement.

[0012] Furthermore, the braking mechanism also includes a push rod, which includes an actuating part that acts on the drive unit.

[0013] Furthermore, the push rod also includes a receiving cavity for accommodating the brake pin, and the receiving cavity is provided with an elastic component for enhancing the power of the brake pin.

[0014] Furthermore, the push rod also includes a connecting shaft for connecting the limiting block, the limiting block being rotatably connected to the connecting shaft.

[0015] Furthermore, the limiting block includes a rotating part and an abutting part. The rotating part is rotatably connected to the brake pin, and the abutting part includes at least two abutting blocks. The at least two abutting parts are provided with a first slot and a second slot for acting on the limiting mechanism.

[0016] Furthermore, the rotating part and the abutting part are integrally formed, and the abutting block has a streamlined structure.

[0017] Furthermore, the limiting mechanism includes a first limiting part and a second limiting part. When an external force is applied to the brake pedal and the brake pin moves from the driving part toward the locking part, the limiting block, after the first slot abuts against the first limiting part, forms a restoring movement through the first reset component, causing the second slot to abut against the second limiting part to limit the brake pin. When an external force is applied to the brake pedal again and the brake pin moves toward the locking part again, the abutting block corresponding to the first slot abuts against the first limiting part. At the same time, after the abutting block corresponding to the first slot is pushed by the first limiting part to rotate, the limiting block again forms a restoring movement through the first reset component, causing the abutting block corresponding to the second slot to abut against the second limiting part. Simultaneously, the abutting block corresponding to the second slot is pushed by the second limiting part to rotate, causing the limiting block to disengage from the second limiting part and return to its initial position along with the brake pin.

[0018] Furthermore, the first limiting part includes a first wall surface and a second wall surface, which intersect and the angle between the first wall surface and the second wall surface is defined as an acute angle. Correspondingly, the second limiting part includes a third wall surface and a fourth wall surface, which intersect and both the third wall surface and the fourth wall surface are inclined relative to the moving direction of the limiting block.

[0019] Furthermore, when the limiting block is in the initial position, the rotating part is arranged parallel to the first wall surface, and the distance between the rotating part and the first wall surface is less than the rotation path length of the abutting part, so that the limiting block cannot rotate when it is adjacent to the first wall surface.

[0020] Furthermore, the third and fourth wall surfaces are inclined relative to the first wall surface. When the limiting block abuts against the intersection of the first and second wall surfaces through the first slot, the limiting block will undergo an offset movement.

[0021] This invention features a second reset component in conjunction with the brake pedal, allowing the brake pedal to reset after each use. After the brake pedal is activated, the drive unit moves the brake pin, changing the state of the wheel assembly. To fix or release the brake pin position after the brake pedal is activated, the braking mechanism includes a limiting block. Simultaneously, a limiting mechanism cooperating with the limiting block is located within the rear footrest. When the brake pedal is activated for the first time, the brake pin moves towards the locking part of the wheel assembly via the drive unit, extending into the locking part and being fixed in position by the limiting block and limiting mechanism. When the brake pedal is activated again, the brake pin moves towards the wheel assembly again, and through the rotational movement of the limiting block, it disengages from the limiting mechanism and returns to its initial position, thus releasing the lock. This invention eliminates the need for contact with the shoe upper and achieves single-point brake control, facilitating daily use. In summary, this invention provides a simple and convenient braking interaction through single-point interaction without distinguishing operating areas, resulting in a convenient and efficient braking experience. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 Partial breakdown of this utility model Figure 1 ;

[0024] Figure 3 Partial breakdown of this utility model Figure 2 ;

[0025] Figure 4 An exploded view of the brake pedal, push rod, and braking mechanism;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of the brake pedal Figure 1 ;

[0027] Figure 6 A schematic diagram of the three-dimensional structure of the brake pedal Figure 2 ;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the rear foot seat;

[0029] Figure 8 This is a top view of the rear foot seat;

[0030] Figure 9 Top view of the rear foot and limit block;

[0031] Figure 10 Schematic diagram of the movement state of the limit block Figure 1 ;

[0032] Figure 11 Schematic diagram of the movement state of the limit block Figure 2 ;

[0033] Figure 12 Schematic diagram of the movement state of the limit block Figure 3 ;

[0034] Figure 13 Schematic diagram of the movement state of the limit block Figure 4 ;

[0035] Figure 14 Schematic diagram of the movement state of the limit block Figure 5 ;

[0036] Figure 15 This is a three-dimensional structural diagram of the present invention located on a baby stroller.

[0037] The above figures include the following reference numerals:

[0038] 1. Wheel assembly; 11. Locking part; 2. Brake pedal; 21. Stepping part; 22. Drive part; 221. Drive lower surface; 222. Drive upper surface; 23. Receiving chamber; 3. Braking mechanism; 31. Brake pin; 32. First reset component; 33. Push rod; 331. Actuating part; 332. Receiving chamber; 333. Elastic component; 334. Connecting shaft; 34. Limiting block; 341. Rotating part; 34 2. Abutting part; 3421. Abutting block; 3422. First slot; 3423. Second slot; 4. Rear foot; 41. Limiting mechanism; 411. First limiting part; 4111. First wall surface; 4112. Second wall surface; 412. Second limiting part; 4121. Third wall surface; 4122. Fourth wall surface; 42. Track; 421. First linear guide; 422. Second linear guide; 5. Second reset component. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0040] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] This utility model proposes a brake structure for baby strollers.

[0043] In this embodiment of the utility model, such as Figures 1 to 15As shown, the braking structure for a baby stroller includes a wheel assembly 1, a brake pedal 2 movably disposed relative to the wheel assembly 1, a braking mechanism 3 for locking or unlocking the wheel assembly 1, a rear footrest 4, and a second reset component 5 for resetting the brake pedal 2. The wheel assembly 1 includes a locking part 11, the brake pedal 2 includes a pedal part 21 and a drive part 22, and the braking mechanism 3 is disposed between the wheel assembly 1 and the brake pedal 2. The braking mechanism 3 includes a brake pin 31 and a first reset component 32. The brake pin 31 is movably disposed between the wheel assembly 1 and the brake pedal 2. Whenever the pedal part 2 is pressed... When subjected to external force, the brake pin 31 can move toward the locking part 11 through the action of the drive part 22, and the brake pin 31 can return to the drive part 22 through the first reset component 32. In addition, the brake pin 31 is fitted with a rotatable limit block 34. The rear foot seat 4 is located between the wheel set 1 and the brake pedal 2. The rear foot seat 4 is provided with a limit mechanism 41 for locking the position of the brake pin 31 in conjunction with the limit block 34. After the aforementioned second reset component 5 is activated by the external force acting on the pedal part 21, the second reset component 5 resets the brake pedal 2.

[0044] Specifically, the aforementioned first reset component 32 is preferably a spring. In some other embodiments of this utility model, the first reset component 32 can also be replaced by components with elastic properties such as sponge, rubber, and elastic fibers. Components with elastic properties are existing technology and will not be described in detail here.

[0045] It should be noted beforehand that, regarding the understanding of the aforementioned movable setting of the brake pedal 2 relative to the wheel assembly 1, the movable setting of the brake pedal 2 can be generally understood as either a rotational setting or a linear lifting setting. The rotational setting is more in line with user habits than the linear lifting setting. In the embodiments of this utility model, the rotational setting will be specifically described, while the linear lifting setting or other similar design concepts shall be based on the rotational setting.

[0046] Secondly, the streamlined structure described below should be understood as a smooth curved structure.

[0047] In some embodiments of this utility model, the locking part 11 is a groove structure provided on the wheel. The groove structure as the locking part 11 is the prior art. When the brake pin 31 extends into the specific groove structure around the wheel assembly 1, the wheel assembly 1 enters the locked state.

[0048] In some embodiments of this utility model, the brake pedal 2 further includes a receiving chamber 23, which is used to house the second reset component 5. The second reset component 5 is preferably a torsion spring. When the pedal part 21 is subjected to an external force and the brake pedal 2 rotates as a whole, the torsion spring can rotate back to reset the brake pedal 2. In some other embodiments of this utility model, the second reset component can also be replaced by a leaf spring, a leaf spring or other component with a similar rotation function. The component with the rotation function can refer to the prior art, which will not be described in detail here.

[0049] In some embodiments of this utility model, the driving part 22 includes a driving low surface and a driving high surface. When the pedal part 21 is rotated by an external force, the brake pin 31 moves from the driving low surface to the driving high surface and moves a certain distance in the horizontal direction.

[0050] Specifically, the drive lower surface and the drive higher surface have a streamlined structure, which helps the brake pin 31 maintain smoothness when moving between the drive lower surface and the drive higher surface.

[0051] In some embodiments of this utility model, in order to enhance the linkage between the brake pedal 2 and the brake pin 31, or between the brake pin 31 and the limiting block 34, the braking mechanism 3 further includes a push rod 33.

[0052] Specifically, the push rod 33 includes an actuating part 331 that acts on the drive part 22. As a component implementing the preferred embodiment of this utility model, the push rod 33 extends the actuating part 331 into the drive part 22, and specifically moves the actuating part 331 between the drive low surface and the drive high surface to move the brake pin 31. It can be understood that since the actuating part 331 essentially plays a pushing function, it is more beneficial to make the actuating part 331 a round-headed rod type to achieve the purpose. At the same time, the push rod 33 also includes a receiving cavity 332 for accommodating the brake pin 31. The receiving cavity 332 is provided with an elastic component 333 for enhancing the power of the brake pin 31. The elastic component 333 is preferably a spring. In some other embodiments of this utility model, the elastic component 333 can also be replaced by a component with the same elastic properties such as sponge, rubber, or elastic fiber. The selection of the elastic component 333 is prior art and will not be described in detail here. In addition, the push rod 33 also includes a connecting shaft 334 for connecting the limiting block 34. The limiting block 34 is rotatably connected to the connecting shaft 334.

[0053] In some embodiments of this utility model, the limiting block 34 includes a rotating part 341 and an abutting part 342. The rotating part 341 is rotatably connected to the brake pin 31. The abutting part 342 includes at least two abutting blocks 3421, and the abutting part 342 is provided with at least two. At the same time, the at least two abutting parts 342 respectively form a first slot 3422 and a second slot 3423 for acting on the limiting mechanism 41.

[0054] Specifically, the rotating part 341 and the abutting part 342 are integrally formed, and the abutting block 3421 has a streamlined structure. The advantage of integral forming is that the structure is stable, while the advantage of the streamlined structure is that the abutting block 3421 will interact more smoothly with the limiting mechanism 41.

[0055] In some embodiments of this utility model, the limiting mechanism 41 includes a first limiting part 411 and a second limiting part 412. Please refer to the appendix. Figure 10 To be continued Figure 14 The content shown, Figure 10 The initial position of limit block 34, until Figure 15 The limiting block 34 returns to its initial position. For specific details, refer to the limiting block 34 and limiting mechanism 41 on the left side of the rear footrest 4. When an external force is applied to the brake pedal 2, and the brake pin 31 moves from the drive unit 22 towards the locking unit 11, the limiting block 34, after abutting against the first limiting part 411 in the first slot 3422, undergoes a return movement via the first reset component 32, causing the second slot 3423 to abut against the second limiting part 412 to limit the brake pin 31. When an external force is applied to the brake pedal 2 again, and the brake pin 31 moves towards the locking part 11 again, the corresponding abutment in the first slot 3422... The receiving block 3421 abuts against the first limiting part 411. At the same time, after the receiving block 3421 corresponding to the first slot 3422 is pushed by the first limiting part 411 to rotate the limiting block 34, the limiting block 34 returns to its original position through the first reset component 32. This causes the receiving block 3421 corresponding to the second slot 3423 to abut against the second limiting part 412. Meanwhile, the receiving block 3421 corresponding to the second slot 3423 is pushed by the second limiting part 412 to rotate the limiting block 34. The limiting block 34 then disengages from the second limiting part 412 and returns to its initial position along with the brake pin 31.

[0056] Specifically, the first limiting part 411 includes a first wall surface 4111 and a second wall surface 4112, which intersect and the angle between them is defined as an acute angle. Correspondingly, the second limiting part 412 includes a third wall surface 4121 and a fourth wall surface 4122, which intersect and are both relative to the limiting block 34. The movement direction is tilted. The specific arrangement of the first limiting part 411 and the second limiting part 412 will cause the limiting block 34 to rotate when it collides with the first limiting part 411 and the second limiting part 412. In some other embodiments of this utility model, the first wall surface 4111 and the second wall surface 4112 or the third wall surface 4121 and the fourth wall surface 4122 can be limited to other angle ranges, mainly to enable the limiting block 34 to rotate within a small range when it comes into contact.

[0057] More specifically, when the limiting block 34 is in the initial position, the rotating part 341 is arranged parallel to the first wall surface 4111, and the distance between the rotating part 341 and the first wall surface 4111 is less than the rotation path length of the abutment part 342, so that the limiting block 34 cannot rotate when it is adjacent to the first wall surface 4111. The aforementioned setting of the relative position of the rotating part 341 and the first wall surface 4111 and the size setting of the abutment part 342 ensure that the limiting block 34 will not rotate before it abuts the first limiting part 411 and the second limiting part 412, thereby affecting the subsequent limiting function.

[0058] More specifically, the third wall surface 4121 and the fourth wall surface 4122 are inclined relative to the first wall surface 4111. When the limiting block 34 abuts against the intersection of the first wall surface 4111 and the second wall surface 4112 through the first slot 3422, the limiting block 34 will undergo an offset movement. The purpose of this arrangement is to ensure that after the limiting block 34 abuts against the first limiting part 411, it can accurately abut against the second limiting part 412 after the return movement.

[0059] More specifically, the intersection of the first wall surface 4111 and the second wall surface 4112, as well as the intersection of the third wall surface 4121 and the fourth wall surface 4122, are set as arc surfaces. The function of the arc surfaces is to make the rotation of the limiting block 34 smoother when it abuts against the first limiting part 411 and the second limiting part 412.

[0060] In some embodiments of this utility model, the rear foot seat 4 is provided with a track 42 for guiding the movement of the limiting block 34. The track 42 is located in the area between the first limiting part 411 and the second limiting part 412, and the limiting block 34 is rotatably disposed on the top of the track 42.

[0061] Specifically, the track 42 includes a first rail 421 and a second rail 422 arranged side by side, and a rotating part 341 is disposed between the first rail 421 and the second rail 422. When the limiting block 34 moves horizontally following the brake pin 31, the rotating part 341 rotates within the space formed between the first rail 421 and the second rail 422 while moving horizontally.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A braking structure for a baby stroller, characterized in that, include: Wheel assembly, including a locking mechanism; Brake pedal, which is movable relative to the wheel assembly, includes a pedal part and a drive part; The braking mechanism includes a brake pin and a first reset component. The brake pin is movably disposed between the wheel assembly and the brake pedal. Whenever the pedal is subjected to external force, the brake pin can move toward the locking part through the action of the drive part, and the brake pin can return to its original position from the locking part toward the drive part through the first reset component. In addition, the brake pin is fitted with a rotatable limit block. The rear footrest, located between the wheel assembly and the brake pedal, includes a limiting mechanism for locking the brake pin position in conjunction with a limiting block; and The second reset component resets the brake pedal after an external force is applied to the pedal to create movement.

2. The brake structure as described in claim 1, characterized in that: The braking mechanism also includes a push rod, which includes an actuating part that acts on the drive unit.

3. The brake structure as described in claim 2, characterized in that: The push rod also includes a receiving cavity for accommodating the brake pin, and the receiving cavity is provided with an elastic component for enhancing the power of the brake pin.

4. The brake braking structure as described in claim 3, characterized in that: The push rod also includes a connecting shaft for connecting the limiting block, which is rotatably connected to the connecting shaft.

5. The brake braking structure as described in claim 1, characterized in that: The limiting block includes a rotating part and an abutting part. The rotating part is rotatably connected to the brake pin. The abutting part includes at least two abutting blocks, and the abutting part is provided with at least two. At the same time, the at least two abutting parts are respectively formed with a first slot and a second slot for acting on the limiting mechanism.

6. The brake braking structure as described in claim 5, characterized in that: The rotating part and the abutting part are integrally formed, and the abutting block has a streamlined structure.

7. The brake braking structure as described in claim 5, characterized in that: The limiting mechanism includes a first limiting part and a second limiting part. When an external force is applied to the brake pedal and the brake pin moves from the driving part toward the locking part, the limiting block abuts against the first limiting part in the first slot, and then moves back through the first reset component to abut against the second limiting part to limit the brake pin. When an external force is applied to the brake pedal again and the brake pin moves toward the locking part again, the abutting block corresponding to the first slot abuts against the first limiting part. At the same time, after the abutting block corresponding to the first slot is pushed by the first limiting part to rotate, the limiting block moves back through the first reset component to abut against the second limiting part. At the same time, the abutting block corresponding to the second slot is pushed by the second limiting part to rotate, and the limiting block disengages from the second limiting part and returns to its initial position along with the brake pin.

8. The brake braking structure as described in claim 7, characterized in that: The first limiting part includes a first wall surface and a second wall surface, which intersect and the angle between the first wall surface and the second wall surface is defined as an acute angle. Correspondingly, the second limiting part includes a third wall surface and a fourth wall surface, which intersect and both the third wall surface and the fourth wall surface are inclined relative to the moving direction of the limiting block.

9. The brake braking structure as described in claim 8, characterized in that: When the limiting block is in the initial position, the rotating part is set parallel to the first wall surface, and the distance between the rotating part and the first wall surface is less than the rotation path length of the abutting part, so that the limiting block cannot rotate when it is adjacent to the first wall surface.

10. The brake braking structure as described in claim 9, characterized in that: The third and fourth walls are inclined relative to the first wall. When the limiting block abuts against the intersection of the first and second walls through the first slot, the limiting block will move in an offset manner.

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