A front wheel direction adjusting structure for a baby carriage

Abstract

This utility model discloses a steering adjustment structure for the front wheels of a stroller, including a wheel, a lever, and a brake assembly for controlling the lever to stop the wheel from moving. The wheel has multiple brake holes on the side facing the lever for inserting the lever, and these holes are distributed circumferentially on the side of the wheel. The brake assembly includes a housing, a cover, a rotating component for pushing the lever into or out of the brake holes, and a brake motor for driving the rotating component to rotate. The cover has a knob on the side facing away from the housing. A locking component is located inside the rotating component and is fixedly connected to the cover with screws. This utility model uses the rotation of the brake motor to rotate the rotating component, allowing a clearance groove on the rotating component to push the lever into the brake holes of the wheel, locking the wheel and preventing it from continuing to move. This prevents the stroller from continuing to move and causing danger when encountering obstacles or going downhill.

Description

Technical Field

[0001] This utility model relates to the field of stroller technology, specifically to a structure for adjusting the direction of the front wheels of a stroller. Background Technology

[0002] In family life, there are increasingly more baby-related products, such as baby clothes, toys, and food. Among them, strollers, as a daily care tool for babies, are an indispensable tool among many daily baby items. Strollers make it convenient for people to take babies outdoors. A suitable stroller can not only ensure the child's safety and provide a comfortable environment for the baby's growth, but also reduce the burden on young parents.

[0003] As a result, various automatic strollers have appeared on the market. None of these automatic strollers have an automatic braking function. When people push the stroller out, if they do not hold onto the stroller when going downhill, or accidentally let go when stopping the stroller on a downhill slope, the stroller will rush forward quickly. If it encounters an obstacle, it will frighten the child, and in severe cases, it may cause the child to fall and get injured. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of this utility model is to provide a front wheel direction adjustment structure for a stroller, which automatically brakes when the stroller is moving too fast or encounters an obstacle.

[0005] This utility model is achieved through the following technical solution: a steering adjustment structure for the front wheels of a stroller, including a wheel, a lever, and a brake assembly for controlling the lever to stop the wheel from moving. The wheel has multiple brake holes on the side facing the lever for inserting the lever, and each brake hole is distributed circumferentially on the side of the wheel. The brake assembly includes a housing, a cover, a rotating component for pushing the lever into or out of the brake holes, and a brake motor for driving the rotating component to rotate. The cover has a knob on the side facing away from the housing, and the rotating component has a locking component inside. The locking component is fixedly connected to the cover by screws.

[0006] Preferably, the housing of this utility model is provided with a positioning groove for positioning the lever. The bottom of the positioning groove is provided with a through hole penetrating one side of the housing. The lever is set in the positioning groove by an elastic element and one end extends out of the through hole on the side of the housing facing the wheel. The lever is provided with a limiting platform that cooperates with the elastic element. One end of the elastic element abuts against the bottom of the positioning groove and the other end abuts against the limiting platform so that the lever can be pulled out from the brake socket after the rotating part rotates.

[0007] Preferably, the rotating component of this utility model includes a rotating part and a sleeve part formed on the rotating part and engaged with the locking component. The rotating part is provided with a relief groove on the side facing the brake motor, which can drive the lever to extend into or disengage from the brake insertion hole. The relief groove gradually becomes shallower in the depth of the housing along the circumferential direction, so that a deep relief groove and a shallow relief groove are formed on the housing.

[0008] Preferably, a fixing structure is provided between the rotating component and the locking component of this utility model.

[0009] Preferably, the fixing structure of this utility model includes an elastic opening symmetrically arranged on the side wall of the locking member. The elastic opening forms an elastic part on the side wall of the locking member. The elastic part is provided with an elastic buckle that can be locked on the elastic opening. The sleeve part of the rotating member is provided with a fixing hole that matches the elastic opening. The fixing hole is elongated. The rotating member and the locking member are fixedly assembled with the elastic part through the fixing hole so that the locking member will not detach from the rotating member.

[0010] Preferably, the rotating component and the locking component of this utility model are further provided with a positioning structure.

[0011] Preferably, the positioning structure of this utility model includes a positioning block formed in the sleeve portion and a positioning port formed on the locking member. The positioning block protrudes towards the bottom surface of the sleeve portion, and the rotating member and the locking member are fixedly assembled with the positioning block through the positioning port so that the rotating member and the locking member can be fixed together.

[0012] Preferably, the locking member of this utility model has an integrally formed mounting part, and the mounting part is tightened and fixed to the knob by screws.

[0013] Preferably, the locking component and the knob of this utility model are further provided with a locking structure.

[0014] Preferably, the locking structure of this utility model includes a locking block formed on the inner wall of the locking member and a locking groove formed on the knob, wherein the knob and the locking member are positioned and assembled by the locking block and the locking groove.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. This utility model uses a brake motor to rotate a rotating component, which in turn causes the clearance groove on the rotating component to push a lever into the brake hole of the wheel to lock the wheel, preventing the wheel from continuing to move. This prevents the stroller from continuing to move when it encounters obstacles or goes downhill, thus avoiding potential danger.

[0016] 2. This utility model also allows manual control of the rotating component's rotation via a knob. When manual operation is required or the baby is out of power, the knob can be turned to drive the rotating component to rotate. When the rotating component rotates to the point where the shallow part of the clearance groove corresponds to the position of the lever, the lever extends into the brake socket of the wheel to lock the wheel. When the rotating component rotates to the point where the deep part of the clearance groove corresponds to the position of the lever, the lever pops out of the brake socket under the action of the elastic element and disengages from the brake socket, allowing the wheel to continue moving. It features simple operation and convenient use. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is an exploded view of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the knob of this utility model; Figure 4 This is a schematic diagram of the brake assembly of this utility model; Figure 5 This is a schematic diagram of the lever structure of this utility model; Figure 6 This is a schematic diagram of the structure of the rotating component and the locking component after assembly. Figure 7 This is a schematic diagram of the structure of the rotating component of this utility model; Figure 8 This is a three-dimensional top view of the locking component of this utility model; Figure 9 This is a three-dimensional view of the bottom of the locking component of this utility model; The reference numerals used in the above figures are explained as follows: 1—Wheel; 10—Brake socket; 2—Lever, 20—Limiting station; 3—Brake components; 4—Housing shell, 40—Positioning groove, 41—Through hole; 5—Cover body, 50—Knob, 51—Slot, 52—Positioning post, 53—; 6—Rotating component, 60—Rotating part, 61—Sleeve part, 62—Relief groove, 63—Fixing hole, 64—Positioning block, 620—Deep part of relief groove, 621—Shallow part of relief groove; 7—Brake motor; 8—Locking component, 80—Resilient opening, 81—Resilient part, 82—Positioning port, 83—Mounting part, 84—Clocking block, 810—Resilient buckle; 9—Elastic element. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Reference Figures 1 to 9As shown, a steering adjustment structure for the front wheels of a stroller includes a wheel 1, a lever 2, and a brake assembly 3 for controlling the lever 2 to stop the wheel 1 from moving. The wheel 1 has multiple brake holes 10 on the side facing the lever 2 for inserting the lever 2. Each brake hole 10 is circumferentially distributed on the side of the wheel 1. The brake assembly 3 includes a housing 4, a cover 5, a rotating component 6 for pushing the lever 2 into or out of the brake holes 10, and a brake motor 7 for driving the rotating component 6 to rotate. A knob 50 is provided on the side of the cover 5 facing away from the housing 4. The rotating component 6 contains... The locking component 8 is fixedly connected to the cover 5 by screws 80, while the housing 4 is detachably connected to the stroller frame. During operation, the wheel output end is connected to the housing. The wheel is an automatic walking wheel with an internal drive motor. The stroller controller can make the wheel walk automatically. When the wheel encounters an obstacle or rushes forward quickly, the sensor collects a signal and transmits it to the controller, which then sends a command to the brake motor. The brake motor drives the rotating component to rotate, which pushes the lever to insert into the brake hole of the wheel, thus achieving the braking effect on the wheel.

[0022] Specifically, the housing 4 is provided with a positioning groove 40 for positioning the lever 2. The bottom of the positioning groove 40 is provided with a through hole 41 penetrating one side of the housing 4. The lever 2 is set in the positioning groove 40 by an elastic element 9, with one end extending out of the through hole 41 on the side of the housing 4 facing the wheel 1. The lever 2 is provided with a limiting platform 20 that cooperates with the elastic element 9. One end of the elastic element 9 abuts against the bottom of the positioning groove 40, and the other end abuts against the limiting platform 20. The elastic element 9 is a spring. The spring is sleeved on the lever 2. The spring allows the lever to pop out under the action of the spring when it needs to be pulled out of the brake socket without the pressure of the rotating part 6. That is to say, when the wheel is in the braking state, the spring is in a compressed state. When the wheel is not in the braking state, the spring needs to return to its original state, that is, the spring needs to release its elastic force.

[0023] In order for the rotating component to control the lever 2 to extend into or disengage from the brake socket 10, the rotating component needs to achieve the following specific structure. Specifically, the rotating component 6 includes a rotating part 60 and a sleeve part 61 formed on the rotating part 60 and engaged with the locking member 8. The rotating part 60 has a relief groove 62 on the side facing the brake motor 7, which can drive the lever 2 to extend into or disengage from the brake socket 10. The relief groove 62 gradually becomes shallower in depth along the circumference of the housing 4, so that the housing 4 has a deep relief groove 620 and a shallow relief groove 621. The rotation angle of the relief groove 62 is an acute angle, so that the rotating component can switch between the deep relief groove 620 and the shallow relief groove 621 when rotating back and forth.

[0024] In order to make it easier for the lever 2 to switch between the deep part 620 and the shallow part 621 of the relief groove, the end of the lever 2 facing the relief groove 62 is arc-shaped, and the relief groove 62 is also arc-shaped, so that when the rotating part 6 rotates, it can easily push the lever 2 into the brake socket 10 or drive the lever 2 out of the brake socket 10.

[0025] To enable the rotating component to rotate along with the locking component when the knob is turned, thus providing manual operation of the brake assembly, a fixing structure is provided between the rotating component 6 and the locking component 8 in this embodiment. This fixing structure includes two elastic openings 80 formed on the side wall of the locking component 8, symmetrically arranged. Each elastic opening 80 creates an elastic portion 81 on the side wall of the locking component 8. The sleeve portion 61 of the rotating component 6 has a fixing hole 63 adapted to the elastic opening 80, which is elongated. The elastic portion 81 has an elastic buckle 810 that can engage with the elastic opening 80, and the upper surface of the elastic buckle 810 is beveled. The rotating component 6 and the locking component 8 are fixedly assembled with the elastic portion 81 via the fixing hole 63. Under external force, the elastic portion 81 will extend and retract inwards towards the locking component 8, allowing the elastic buckle 810 to more easily engage with the elastic opening 80, preventing the locking component 8 from detaching from the rotating component 6.

[0026] To further improve the ease of assembly of the rotating component 6 and the locking component 8, and the stability of their joint rotation, a positioning structure is provided between the rotating component 6 and the locking component 8. The positioning structure includes a positioning block 64 formed in the sleeve portion 61 and a positioning port 82 formed on the locking component 8. The positioning block 64 protrudes towards the bottom surface of the sleeve portion 61. The rotating component 6 and the locking component 8 are fixedly assembled with the positioning block 64 through the positioning port 82. The number of positioning ports 82 is the same as the number of positioning blocks 64. The positioning blocks 64 are formed at the bottom of the sleeve portion 61 and protrude towards the bottom of the sleeve portion 61. There are multiple positioning blocks 64, and each positioning block 64 is equally distributed along the circumference. In this embodiment, it is preferable to have four positioning blocks 64. Similarly, four positioning ports 82 are equally distributed along the circumference on the locking component 8, so that the positioning ports 82 can be inserted into the positioning blocks 64, thus fixing the rotating component 6 and the locking component 8 together.

[0027] It should be noted that, in order to allow the knob to be assembled and fixed with the locking member 8, a mounting part 83 integrally formed therewith is formed on the locking member 8. The mounting part 83 and the knob 50 are fixed together by screws. A locking structure is also provided between the locking member 8 and the knob 50, so that when the knob 50 is rotated, the knob can stably drive the rotating part and the locking member to rotate together. Specifically, the locking structure includes a locking block 84 formed on the inner wall of the locking member 8 and a locking groove 51 formed on the knob 50. The number of locking blocks 84 and locking grooves 51 is the same. There are two locking blocks 84 symmetrically arranged on the inner wall of the locking member 8. The locking grooves 51 are formed on the side of the knob facing the locking member 8 and a positioning post 52 integrally formed with the knob is formed on the side. The two locking grooves 51 are symmetrically arranged on the positioning post 52, so that the locking grooves 51 can be inserted into the locking blocks 84, so that the knob 50 and the locking member 8 are positioned and fixed together by the locking blocks 84 and the locking grooves 51.

[0028] It should also be noted that when the braking mechanism is used in a stroller, both the left and right wheels of the stroller are equipped with brake components, so that both wheels can be controlled by the brake components at the same time. The knobs 50 of the two brake components can be connected by a linkage, and a pedal is set on the linkage. When manual control of the brake is required, the pedal can be turned back and forth to switch, making the operation more convenient.

Claims

1. A structure for adjusting the direction of a front wheel of a baby carriage, characterized by: The device includes a wheel (1), a lever (2), and a brake assembly (3) for controlling the lever (2) to stop the wheel (1) from moving. The wheel (1) has multiple brake holes (10) for the lever (2) to be inserted on the side facing the lever (2). Each brake hole (10) is distributed circumferentially on the side of the wheel (1). The brake assembly (3) includes a housing (4), a cover (5), a rotating part (6) for pushing the lever into or out of the brake hole (10), and a brake motor (7) for driving the rotating part (6) to rotate. The cover (5) has a knob (50) on the side facing away from the housing (4). The rotating part (6) has a locking part (8) inside. The locking part (8) is fixedly connected to the cover (5) through an elastic opening (80).

2. The front wheel direction adjusting structure for a baby carriage according to claim 1, wherein: The housing (4) is provided with a positioning groove (40) for positioning lever (2). The bottom of the positioning groove (40) is provided with a through hole (41) penetrating one side of the housing (4). The lever (2) is set in the positioning groove (40) by an elastic member (9) and one end extends out of the through hole (41) on the side of the housing (4) facing the wheel (1). The lever (2) is provided with a limiting platform (20) that cooperates with the elastic member (9). One end of the elastic member (9) abuts against the bottom of the positioning groove (40) and the other end abuts against the limiting platform (20) so that the lever (2) can be pulled out from the brake socket (10) after the rotating member (6) rotates.

3. The front wheel direction adjusting structure for a baby carriage according to claim 1 or 2, characterized in that: The rotating part (6) includes a rotating part (60) and a sleeve part (61) formed on the rotating part (60) and engaged with the locking part (8). The rotating part (60) is provided with a relief groove (62) on the side facing the brake motor (7) that can drive the lever (2) to extend into or disengage from the brake socket (10). The relief groove (62) gradually becomes shallower in the circumferential direction in the housing (4) so ​​that a deep relief groove (620) and a shallow relief groove (621) are formed on the housing (4).

4. The structure for adjusting the direction of the front wheels of a stroller according to claim 3, characterized in that: A fixing structure is provided between the rotating part (6) and the locking part (8).

5. The front wheel direction adjusting structure for a baby carriage according to claim 4, wherein: The fixing structure includes a symmetrical elastic opening (80) on the side wall of the locking member (8). The elastic opening (80) forms an elastic part (81) on the side wall of the locking member (8). The elastic part (81) is provided with an elastic buckle (810) that can be locked on the elastic opening (80). The sleeve part (61) of the rotating member (6) is provided with a fixing hole (63) that matches the elastic opening (80). The fixing hole (63) is elongated. The rotating member (6) and the locking member (8) are fixedly assembled with the elastic part (81) through the fixing hole (63) so that the locking member (8) will not come off the rotating member (6).

6. The front wheel direction adjusting structure for a baby carriage according to claim 5, wherein: A positioning structure is also provided between the rotating part (6) and the locking part (8).

7. The front wheel direction adjusting structure for a baby carriage according to claim 6, wherein: The positioning structure includes a positioning block (64) formed in the sleeve portion (61) and a positioning port (82) formed on the locking member (8). The positioning block (64) protrudes towards the bottom surface of the sleeve portion (61). The rotating member (6) and the locking member (8) are fixedly assembled with the positioning block (64) through the positioning port (82) so that the rotating member (6) and the locking member (8) can be fixed together.

8. A steering adjustment structure for the front wheels of a stroller according to claim 7, characterized in that: The locking member (8) has an integrally formed mounting part (83), and the mounting part (83) is fixed to the knob (50) by screws.

9. The front wheel direction adjusting structure for a baby carriage according to claim 8, wherein: A locking structure is also provided between the locking member (8) and the knob (50).

10. The front wheel direction adjusting structure for a baby carriage according to claim 9, wherein: The locking structure includes a locking block (84) formed on the inner wall of the locking member (8) and a locking groove (51) formed on the knob (50). The knob (50) and the locking member (8) are positioned and assembled by the locking block (84) and the locking groove (51).

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