Brake mechanism of stroller

Abstract

The utility model discloses a baby stroller brake mechanism which comprises wheels, a stroller frame connecting seat, a brake seat, a brake pedal, a brake pedal return torsion spring, a brake pin and a brake pin return compression spring, and the stroller frame connecting seat is fixedly connected to a stroller frame of a baby stroller; the brake seat is fixedly connected to the frame connecting seat, and the wheels and the brake pedal are rotationally installed on the two sides of the brake seat respectively. The brake pedal return torsion spring is connected between the brake seat and the brake pedal; the brake pin is located in the brake seat, and the brake pin return pressure spring is connected between the brake seat and the brake pin; a bump for extruding the brake pin is arranged on the brake pedal; the wheels are provided with brake holes allowing the brake pins to be inserted therein. The brake mechanism of the baby stroller is simple in structure, few in parts, convenient to assemble, cost-saving and long in service life.

Description

Technical Field

[0001] The utility model relates to a brake mechanism for a baby carriage. Background Art

[0002] At present, the brake structure of baby carriages is relatively complex. Most structures usually require the cooperation of the linkage rotation on the frame to complete braking during braking, which requires a large number of parts, resulting in more time and manpower required for the assembly process and relatively high costs. Moreover, the brake structures of existing baby carriages usually complete both braking and releasing brakes through a single pedal, which leads to a relatively high usage frequency of the single pedal, relatively fast wear, a shorter service life of the spring, and easy failure of the brake, affecting the user experience. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a brake mechanism for a baby carriage with a simple structure, few parts, convenient assembly, cost savings, and extended service life.

[0004] A brake mechanism for a baby carriage proposed by the utility model includes a wheel (5), a frame connecting seat (1), a brake seat (6), a brake pedal (9), a brake pedal return torsion spring (10), a brake pin (8), and a brake pin return compression spring (7);

[0005] The frame connecting seat is fixedly connected to the frame of the baby carriage; the brake seat is fixedly connected to the frame connecting seat, and the wheel and the brake pedal are respectively rotatably installed on both sides of the brake seat;

[0006] The brake pedal return torsion spring is connected between the brake seat and the brake pedal;

[0007] The brake pin is located in the brake seat, and the brake pin return compression spring is connected between the brake seat and the brake pin;

[0008] The brake pedal is provided with a convex block for extruding the brake pin;

[0009] The wheel is provided with a brake hole for inserting the brake pin.

[0010] Further, the convex block is located on the side of the brake pedal facing the brake seat, and the convex block is inclined along the inner surface of the brake pedal towards the direction close to the brake seat.

[0011] Further, it further includes a limit block (11) and a limit block return compression spring (12), the limit block is located in the brake seat, and the limit block return compression spring is positioned between the brake seat and the limit block.

[0012] Furthermore, a positioning opening for the limiting block to penetrate is provided on the brake seat, a limiting post is provided on the brake pedal, the positioning opening is located on the side of the brake seat close to the brake pedal, the limiting post extends towards the positioning opening, one side of the limiting block facing the limiting post is inclined, and the limiting block can abut against and limit the movement of the limiting post.

[0013] Furthermore, it further includes a brake release pedal (2), a brake release pedal return compression spring (4) and a positioning pin (3). The brake release pedal is installed on the brake seat through the positioning pin. The brake release pedal is located above the brake seat, and the brake release pedal return compression spring is positioned between the brake release pedal and the brake seat.

[0014] Furthermore, a fixing post is provided on the brake release pedal, an opening for the fixing post to insert is provided on the brake seat, a through opening for the positioning pin to penetrate is provided on the fixing post, the height of the through opening is greater than the diameter of the positioning pin, and a pin hole for the positioning pin to insert is provided in the brake seat.

[0015] Furthermore, a notch is provided in the middle of the limiting block. The fixing post is located in the notch. The fixing post is L-shaped. The connection part of the horizontal and vertical parts of the L-shaped fixing post is inclined towards the wheel direction as a first inclined surface, and the side of the notch close to the wheel is inclined towards the brake pedal direction as a second inclined surface. The first inclined surface and the second inclined surface abut against each other.

[0016] Furthermore, it further includes a protective cover plate. The protective cover plate is fixed on the side of the brake seat. The protective cover plate is located between the brake seat and the wheel.

[0017] Furthermore, a first fixing hole and a second fixing hole for the brake pedal return torsion spring to be fixedly penetrated are respectively provided on the brake seat and the brake pedal.

[0018] Furthermore, a through hole for placing a brake pin is provided on the brake seat, and the brake holes are evenly spaced around the wheel.

[0019] By means of the above solution, the utility model has at least the following advantages: The children's stroller braking mechanism is installed on the children's stroller through the frame connecting seat, without the cooperation of the upper connecting rod on the frame. It can complete braking through its own mechanism, with fewer required parts and no need for large-sized parts, which can reduce the part cost. The overall structure is simple, effectively reducing the assembly time and labor. The brake is controlled by the brake pedal, and the brake release is controlled by the brake release pedal, realizing the use of double pedals, thereby reducing wear, extending the service life, and improving the user experience.

[0020] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and be implemented in accordance with the content of the description, the following describes in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings. Description of the Drawings

[0021] Figure 1 It is an exploded view of the structure of the brake mechanism of the baby stroller of the present utility model;

[0022] Figure 2 It is an assembled view of the brake mechanism of the baby stroller of the present utility model;

[0023] Figure 3 It is a schematic cross-sectional view of the brake mechanism of the baby stroller of the present utility model in the brake-released state Figure 1 ;

[0024] Figure 4 It is a schematic cross-sectional view of the brake mechanism of the baby stroller of the present utility model in the brake-released state Figure 2 ;

[0025] Figure 5 It is a schematic cross-sectional view of the brake mechanism of the baby stroller of the present utility model in the locked state Figure 1 ;

[0026] Figure 6 It is a schematic cross-sectional view of the brake mechanism of the baby stroller of the present utility model in the locked state Figure 2 ;

[0027] Figure 7 It is a schematic structural view of the brake seat in the present utility model;

[0028] Figure 8 It is a schematic structural view of the brake pedal in the present utility model;

[0029] Figure 9 It is a schematic structural view of the brake-release pedal in the present utility model;

[0030] Figure 10 It is a schematic structural view of the limit block in the present utility model;

[0031] Figure 11 It is a schematic view of the brake mechanism of the baby stroller of the present utility model installed on the baby stroller. Detailed Embodiments

[0032] The following further describes in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0033] Embodiment: A braking mechanism for a baby stroller, comprising a wheel 5, a frame connecting seat 1, a brake seat 6, a brake pedal 9, a brake pedal return torsion spring 10, a brake pin 8, and a brake pin return compression spring 7;

[0034] The frame connecting seat is fixedly connected to the frame of the baby stroller; the brake seat is fixedly connected to the frame connecting seat, and the wheel and the brake pedal are respectively rotatably mounted on both sides of the brake seat;

[0035] The brake pedal return torsion spring is connected between the brake seat and the brake pedal;

[0036] The brake pin is located in the brake seat, and the brake pin return compression spring is connected between the brake seat and the brake pin;

[0037] The brake pedal is provided with a convex block 91 for squeezing the brake pin;

[0038] The wheel is provided with a brake hole 51 for inserting the brake pin.

[0039] The convex block is located on the side of the brake pedal facing the brake seat, and the convex block is inclined along the inner surface of the brake pedal towards the direction close to the brake seat.

[0040] It further includes a limit block 11 and a limit block return compression spring 12. The limit block is located in the brake seat, and the limit block return compression spring is positioned between the brake seat and the limit block.

[0041] The brake seat is provided with a positioning port 61 for the limit block to penetrate. The brake pedal is provided with a limit post 92. The positioning port is located on the side of the brake seat close to the brake pedal, and the limit post extends towards the direction close to the positioning port. One side of the limit block facing the limit post is a slope, and the limit block can abut against and limit the movement of the limit post.

[0042] It further includes a brake release pedal 2, a brake release pedal return compression spring 4, and a positioning pin 3. The brake release pedal is installed on the brake seat through the positioning pin. The brake release pedal is located above the brake seat, and the brake release pedal return compression spring is positioned between the brake release pedal and the brake seat.

[0043] The brake release pedal is provided with a fixing post 21. The brake seat is provided with an opening 62 for the fixing post to insert. The fixing post is provided with a through hole 22 for the positioning pin to pass through. The height of the through hole is greater than the diameter of the positioning pin. The brake seat is provided with a pin hole for the positioning pin to be inserted.

[0044] A notch 14 is provided in the middle of the limit block, the fixing post is located in the notch, the fixing post is L-shaped, and the connection between the horizontal and vertical parts of the L-shaped fixing post is a first inclined surface 15 inclined towards the wheel direction. One side of the notch close to the wheel is a second inclined surface 16 inclined towards the brake pedal direction, and the first inclined surface and the second inclined surface are in mutual abutment.

[0045] It further includes a protective cover plate 13, the protective cover plate is fixed on the side of the brake seat, and the protective cover plate is located between the brake seat and the wheel.

[0046] A first fixing hole 64 and a second fixing hole 93 for the brake pedal return torsion spring to be fixedly inserted are respectively provided on the brake seat and the brake pedal. A locking pattern is printed on the surface of the brake pedal, and an unlocking pattern is printed on the surface of the brake release pedal.

[0047] A through hole 63 for placing the brake pin is provided on the brake seat, and the brake holes are evenly spaced around the wheel.

[0048] The braking method of the braking mechanism of this baby stroller is as follows:

[0049] In the original position, the wheel is in an unbraked state, the limit block is located in the positioning port, the limit block return compression spring is in an unloaded state, the limit post on the brake pedal is located at the front end of the limit block, and the convex block on the brake pedal is located at the rear end of the brake pin (as Figure 4 shown); the brake pin is located in the through hole on the brake seat, the brake pin return compression spring is in an unloaded state, the brake pin is located outside the brake hole, and the wheel can rotate freely (as Figure 3 shown); the brake release pedal return compression spring is in an unloaded state, the positioning pin is located at the lower end part of the through hole on the brake release pedal; the brake pedal return torsion spring is in an unloaded state.

[0050] When braking, step on the brake pedal with your foot, the brake pedal rotates on the brake seat, and the convex block on the brake pedal rotates together with the brake pedal. The inclined convex block continuously presses the brake pin during the rotation process, so that one end of the brake pin passes through the through hole on the brake seat and inserts into the brake hole of the wheel, thereby braking the wheel. At this time, the brake pin return compression spring is in a stressed state, and the brake pedal return torsion spring is also in a stressed state; during the rotation of the brake pedal, the limit post is driven to rotate together. The limit post presses the limit block while moving backward, and the limit block return compression spring is in a stressed state. When the limit post moves to the rear end of the limit block and separates from the limit block, the limit block return compression spring rebounds, causing the limit block to return to its original position. At this time, the limit post is blocked by the limit block, making the brake pedal return torsion spring unable to rebound, so that the wheel is in a stable braking state.

[0051] When releasing the brake, step on the brake release pedal with your foot. The return compression spring of the brake release pedal is in a stressed state. By using the mutual abutment of the first inclined surface on the limit block and the second inclined surface on the brake release pedal, when the brake release pedal moves downward, it drives the limit block to move towards the wheel. The return compression spring of the limit block is in a stressed state. At this time, the limit post is no longer blocked by the limit block, and the return torsion spring of the brake pedal rebounds, causing the brake pedal to return to its original position. The convex block on the brake pedal returns to its original position together with the brake pedal. The return compression spring of the brake pin rebounds, causing the brake pin to be withdrawn from the brake hole and return to its original position, thus completing the brake release.

[0052] After the brake release is completed, release the brake release pedal. The return compression spring of the brake release pedal rebounds, and the brake release pedal returns to its original position. At the same time, the return compression spring of the limit block rebounds, and the limit block returns to its original position.

[0053] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A braking mechanism for a baby stroller, characterized in that: It includes a wheel (5), a frame connecting seat (1), a brake seat (6), a brake pedal (9), a brake pedal return torsion spring (10), a brake pin (8), and a brake pin return compression spring (7); The frame connecting seat is fixedly connected to the frame of the stroller; the brake seat is fixedly connected to the frame connecting seat, and the wheel and the brake pedal are respectively rotatably installed on both sides of the brake seat; The brake pedal return torsion spring is connected between the brake seat and the brake pedal; The brake pin is located in the brake seat, and the brake pin return compression spring is connected between the brake seat and the brake pin; The brake pedal is provided with a convex block for pressing the brake pin; The wheel is provided with a brake hole for the brake pin to insert; 2. The braking mechanism of a baby stroller according to claim 1, characterized in that: The convex block is located on the side of the brake pedal facing the brake seat, and the convex block is inclined along the inner surface of the brake pedal towards the direction close to the brake seat; 3. The braking mechanism of a baby stroller according to claim 2, characterized in that: It further includes a limit block (11) and a limit block return compression spring (12), the limit block is located in the brake seat, and the limit block return compression spring is positioned between the brake seat and the limit block; 4. The braking mechanism for a baby stroller according to claim 3, characterized in that: The brake seat is provided with a positioning port for the limit block to penetrate, the brake pedal is provided with a limit post, the positioning port is located on the side of the brake seat close to the brake pedal, the limit post extends towards the direction close to the positioning port, one side of the limit block facing the limit post is an inclined surface, and the limit block can abut against and limit the movement of the limit post; 5. A brake mechanism for a baby stroller according to claim 4, characterized in that: It further includes a brake release pedal (2), a brake release pedal return compression spring (4), and a positioning pin (3), the brake release pedal is installed on the brake seat through the positioning pin, the brake release pedal is located above the brake seat, and the brake release pedal return compression spring is positioned between the brake release pedal and the brake seat; 6. The braking mechanism of a baby stroller according to claim 5, characterized in that: The brake release pedal is provided with a fixing post, the brake seat is provided with an opening for the fixing post to insert, the fixing post is provided with a through hole for the positioning pin to pass through, the height of the through hole is greater than the diameter of the positioning pin, and the brake seat is provided with a pin hole for the positioning pin to insert; 7. The braking mechanism of a baby stroller according to claim 6, characterized in that: There is a notch in the middle of the limit block, the fixing post is located in the notch, the fixing post is L-shaped, the connection between the horizontal and vertical parts of the L-shaped fixing post is a first inclined surface inclined towards the wheel direction, and the side of the notch close to the wheel is a second inclined surface inclined towards the brake pedal direction, and the first inclined surface abuts against the second inclined surface; 8. A braking mechanism for a baby stroller according to claim 7, characterized in that: It further includes a protective cover plate, the protective cover plate is fixed on the side of the brake seat, and the protective cover plate is located between the brake seat and the wheel; 9. The braking mechanism of a baby stroller according to claim 8, wherein: The brake seat and the brake pedal are respectively provided with a first fixing hole and a second fixing hole for the brake pedal return torsion spring to be fixedly passed through; 10. The braking mechanism of a baby stroller according to claim 9, characterized in that: The brake seat is provided with a through hole for placing the brake pin, and the brake holes are evenly spaced and arranged around the wheel;

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