Braking device and cart including the same

Abstract

The present invention provides a brake device, which is used on a cart. The brake device includes a wheel hub, a guide sleeve, a brake member, a reset mechanism, a drive member and a button for controlling the movement of the drive member; the wheel hub includes a plurality of limiting holes that are evenly distributed in an annular shape relative to it; the brake member is pushed by the drive member to move toward the limiting hole and is locked with the limiting hole, and the reset mechanism is used to control the reset of the brake member to disengage from the limiting hole; the drive member and the guide sleeve respectively include a guide column and a guide rail assembly that cooperate with each other; the guide rail assembly includes a first component and a second component located inside the first component; the brake device of the present invention and the cart including the same are easy to operate and shoes are not easily dirty.

Description

Technical Field

[0001] The present invention relates to the field of carts, and in particular to a braking device and a cart comprising the same. Background Art

[0002] The brakes on traditional strollers are all equipped with a foot-operated switch. After stepping on the switch with your foot, you control the brake lever to lock the wheel hub. When unlocking, you need to put your toes under the bottom of the switch and then push it up with your toes, so the operation is very cumbersome.

[0003] Therefore, the present invention proposes a brake mechanism that is easy to operate to solve the problem of troublesome unlocking in traditional technologies. Summary of the Invention

[0004] Technical problems to be solved

[0005] The present invention provides a brake mechanism that is easy to operate, so as to solve the problem of troublesome unlocking in the traditional technology.

[0006] Technical solutions to the problem

[0007] Invention Summary: A brake device includes a wheel hub, a guide sleeve, a brake member, a reset mechanism, a drive member, and a button for controlling the movement of the drive member; the wheel hub includes a plurality of limiting holes evenly distributed in an annular pattern relative thereto; the brake member is pushed by the drive member to move toward the limiting holes and engage with the limiting holes; the reset mechanism is used to reset the brake member so that it disengages from the limiting holes; the drive member and guide sleeve respectively include a guide post and a guide rail assembly that cooperate with each other; the guide rail assembly includes a first member and a second member located within the first member;

[0008] The first component includes an initial slideway, and a first slideway and a second slideway are formed between the first component and the second component. One ends of the first slideway and the second slideway are connected to each other, and the other ends are both connected to the initial slideway;

[0009] The first component includes two first positioning areas and a second positioning area respectively located on the first slideway and the second slideway, and the second component includes a buffer area located at the junction of the first positioning area and the second positioning area;

[0010] The second component includes a first guide member, a second guide member and a third guide member, and the first component includes a fourth guide member;

[0011] The first guide member is used to move the driving member of the initial slide into the first slide; the second guide member is used to move the driving member in the first positioning area to the buffer area, the fourth guide member is used to move the driving member in the buffer area to the second positioning area, and the third guide member is used to move the driving member in the second positioning area to the second slide.

[0012] In the above-mentioned braking device, the position of the first guide member is toward the initial slide and biased toward the second slide; the position of the second guide member is toward the first positioning area and biased toward the first slide; the position of the third guide member is toward the second positioning area and biased toward the buffer area; the position of the fourth guide member is toward the buffer area and biased toward the first positioning area.

[0013] In the above-mentioned brake device, the second component is shaped like a bull's head, the second guide member and the third guide member are respectively arranged on the horns on both sides of the bull's head, and the first guide member is arranged on the bull's mouth of the bull's head.

[0014] In the above-mentioned brake device, the first component further includes a protrusion, the first positioning area and the second positioning area are located on both sides of the protrusion, and the protrusion forms a fourth guide member.

[0015] In the above-mentioned brake device, the brake component includes a brake seat and a brake rod located on the side of the brake seat and evenly distributed in a ring relative to the brake seat, and the brake rod is limitedly engaged with the limiting hole.

[0016] In the above-mentioned brake device, the brake further comprises a support seat, wherein the interior of the support seat is provided with an inner cavity for accommodating the brake seat and a sliding groove for accommodating the brake rod.

[0017] In the above-mentioned brake device, the structure of the brake reset mechanism is a spring, which is located in the inner cavity and has two ends in contact with the support seat and the brake seat.

[0018] In the above-mentioned brake device, an outer cover is provided on the outside of the brake support seat, the outer cover is connected to the support seat, the guide sleeve is fixedly arranged in the inner cavity, and the driving member passes through the outer cover and the guide sleeve and abuts against the brake member.

[0019] In the above-mentioned brake device, one end of the button is sleeved on the driving member and coaxially hinged with the driving member. The inner side of the button includes a push rod with a spherical surface at one end, and the driving member is provided with a spherical groove that cooperates with the push rod.

[0020] A cart, characterized by comprising the above-mentioned braking device.

[0021] Beneficial effects

[0022] In the brake device of the present invention and the cart including the same, the cooperation of the guide column and the guide rail assembly allows both braking and unlocking to be completed by pressing with the foot, and the unlocking action is the same as the braking action, so the operation is simple and convenient, and the shoes are not easily dirty. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1is a perspective view of the brake device of the present invention;

[0024] Figure 2 for Figure 1 Exploded diagram;

[0025] Figure 3 is a cross-sectional view of the brake device of the present invention;

[0026] Figure 4 It is a schematic diagram of the activities on the guide column and the guide sleeve;

[0027] In the figure, 1 is the wheel hub, 2 is the support seat, 3 is the guide sleeve, 4 is the driving member, 5 is the button, 6 is the brake member, 7 is the reset mechanism, 8 is the outer cover, 9 is the push rod, 10 is the limiting hole, 11 is the first component, 12 is the second component, 13 is the first slide, 14 is the second slide, 15 is the first positioning area, 16 is the second positioning area, 17 is the initial slide, 18 is the buffer area, 21 is the first guide member, 22 is the second guide member, 23 is the third guide member, 24 is the fourth guide member, 25 is the inner cavity, 26 is the sliding groove, 27 is the spherical groove, 30 is the guide column, 61 is the brake seat, and 62 is the brake lever. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] See Figures 1-4 A brake device is used on a cart. The brake device includes a wheel hub 1, a support seat 2, a guide sleeve 3, a brake member 6, a reset mechanism 7, an outer cover 8, a push rod 9, a drive member 4, and a button 5 for controlling the movement of the drive member 4. The support seat 2 is rotatably connected to the wheel hub 1 via a rotating shaft. The brake member 6 includes a brake seat 61 and two brake rods 62 located on the side of the brake seat 61 and evenly distributed in an annular manner relative to the brake seat. The interior of the support seat 2 is provided with an inner cavity 25 that can accommodate the reset mechanism 7, the brake seat 61, and the guide sleeve 3, as well as a sliding groove 26 that accommodates the brake rods 62. The brake seat 61 moves back and forth axially relative to the wheel hub 1, and the brake rods 62 slide back and forth relative to the sliding groove 26. The wheel hub 1 includes a plurality of limiting holes 10 evenly distributed in an annular manner relative to it.

[0030] The outer side of the support base 2 is provided with an outer cover 8, which is connected to the support base 2 to seal the inner cavity. The driving member 4 passes through the outer cover 8 and the guide sleeve 3 and abuts against the brake member 6. One end of the button 5 passes through the outer cover 8 and is sleeved on the guide sleeve 3 and the driving member 4. This end abuts against the brake seat 61. One end of the button 5 is sleeved on the driving member 4 and is coaxially hinged with the driving member 4. The inner side of the button includes a push rod 9 with a spherical surface at one end. The driving member 4 is provided with a spherical groove 27 that cooperates with the push rod 9. The two ends of the push rod 9 are respectively hinged with the driving member 4 and the button 5. One end of the button 5 is hinged with the outer cover 8, so that the button 5 can be pressed to cause the driving member 4 to push the brake seat 61 and the brake rod 62 toward the wheel hub.

[0031] The reset mechanism 7 is constructed as a spring, located within the inner cavity, with both ends in contact with the support base 2 and the brake base 61. In the absence of force, the spring resets the brake base 61, brake lever 62, driver 4, and button 5. To ensure complete reset of the button 5, a compression spring can be interposed between the button 5 and the guide sleeve 3.

[0032] The driving member 4 and the guide sleeve 3 respectively include a guide post 9 and a guide rail assembly that cooperate with each other; the number of the guide posts 30 and the guide rail assembly are both two and arranged in an annular manner. The guide post 9 is arranged on the outer circumference of the driving member 4, and the guide sleeve is located on the inner circumference of the guide sleeve 3.

[0033] like Figure 4 As shown, the guide rail assembly includes a first component 11 and a second component 12 located inside the first component; the first component 11 includes a transverse initial slide 17, and a second slide 14 and a first slide 13 distributed up and down are formed between the first component 11 and the second component 12, one end of the first slide 13 and the second slide 14 are connected to each other, and the other end is connected to the initial slide 17; the first component 11 includes two first positioning areas 15 and second positioning areas 16 located in the first slide 13 and the second slide 14 respectively, and the second component includes a buffer area 18 located at the junction of the first positioning area 15 and the second positioning area 16; the second component 12 includes a first guide member 21, a second guide member 22 and a third guide member 23, and the first component 11 includes a fourth guide member 24.

[0034] The second member 12 is shaped like a bull's head, with the second and third guide members 22 and 23 positioned on the horns on either side of the bull's head, and the first guide member 21 positioned on the mouth of the bull's head. One side of the first member 11 protrudes toward the second member 12, with the first and second positioning areas 15 and 16 located on either side of the protrusion, forming a fourth guide member 24.

[0035] When braking, the push button 5 drives the driving member 4 to move toward the wheel hub 1 through the push rod 9, and the guide column starts to move in the initial slide 17. The position of the first guide member 21 is toward the initial slide and biased toward the second slide 14. Therefore, the opening of the first slide 13 is larger and horizontally toward the guide column. Therefore, the driving member 4 of the initial slide 17 will move and enter the first slide until it enters the first positioning area 15. At the same time, the driving member 4 drives the brake rod 62 to move into the limiting hole 10, thereby limiting the movement of the wheel. After releasing the button 5, under the action of the spring, the guide column 30 starts to reset and move. Since the position of the second guide member 22 is toward the first positioning area 15 and biased toward the first slide 13, the opening of the buffer area 18 is larger, and the driving member 4 moves horizontally and enters the buffer area 18. At the same time, the button 5 is also reset (incompletely reset), thereby realizing the braking process.

[0036] When unlocking, push the button 5 again, and the driving member 4 is driven to move toward the wheel hub 1 through the push rod 9. Since the position of the fourth guide member 24 is toward the buffer area 18 and biased toward the first positioning area 15, and the opening of the second positioning area 16 is larger, the guide column located in the buffer area 18 enters the second positioning area 16. After releasing the button 5, under the action of the spring, the guide column 30 begins to reset and move. The position of the third guide member 23 is toward the second positioning area 16 and biased toward the buffer area 18. Therefore, the opening of the second slide 14 is larger, and the guide column 30 enters the second slide 14 and goes along the second slide 14 to the initial slide 17. At this time, the brake lever 62 and the button 5 also return to their original positions under the reset action of the spring, thereby realizing the unlocking process.

[0037] The unlocking operation is also performed by pushing the button 5, which is easy to operate and is basically the same as the action of pushing the button 5 during braking. Therefore, the operation is very simple and convenient, and the shoes are not easily dirty.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A braking device, characterized in that: The invention comprises a wheel hub (1), a guide sleeve (3), a brake member (6), a reset mechanism (7), a driving member (4) and a button (5) for controlling the movement of the driving member (4); the wheel hub (1) comprises a plurality of limiting holes (10) uniformly distributed in an annular shape relative to the wheel hub; the brake member (6) is pushed by the driving member (4) to move toward the limiting hole (10) and engage with the limiting hole (10); the reset mechanism (7) is used to control the brake member (6) to reset and disengage from the limiting hole (10); the driving member (4) and the guide sleeve (3) respectively comprise a guide column (30) and a guide rail assembly that cooperate with each other; the guide rail assembly comprises a first component (11) and a second component (12) located inside the first component; The first component (11) includes an initial slideway (17), a first slideway (13) and a second slideway (14) are formed between the first component (11) and the second component (12), one end of the first slideway (13) and the second slideway (14) are connected to each other, and the other end thereof is connected to the initial slideway (17); The first component (11) includes two first positioning areas (15) and a second positioning area (16) respectively located on the first slideway (13) and the second slideway (14); the second component includes a buffer area (18) located at the junction of the first positioning area (15) and the second positioning area (16); The second component (12) includes a first guide member (21), a second guide member (22) and a third guide member (23), and the first component (11) includes a fourth guide member (24); the first guide member (21) is used to move the driving member (4) of the initial slideway (17) into the first slideway; the second guide member (22) is used to move the driving member (4) in the first positioning area (15) into the buffer area, the fourth guide member (24) is used to move the driving member (4) in the buffer area into the second positioning area, and the third guide member (23) is used to move the driving member (4) in the second positioning area (16) into the second slideway (14); The first guide member (21) is positioned toward the initial slide and is biased toward the second slide (14); the second guide member (22) is positioned toward the first positioning area (15) and is biased toward the first slide (13); the third guide member (23) is positioned toward the second positioning area (16) and is biased toward the buffer area (18); the fourth guide member (24) is positioned toward the buffer area (18) and is biased toward the first positioning area (15); the first component (11) further includes a protrusion, the first positioning area (15) and the second positioning area (16) are located on both sides of the protrusion, and the protrusion forms the fourth guide member (24).

2. The brake device according to claim 1, characterized in that: The second component (12) is in the shape of a bull's head, the second guide member (22) and the third guide member (23) are respectively arranged on the horns on both sides of the bull's head, and the first guide member (21) is arranged on the bull's mouth.

3. The brake device according to claim 1, wherein: The brake component (6) includes a brake seat (61) and a brake rod (62) located on the side of the brake seat (61) and evenly distributed in a ring relative to the brake seat, and the brake rod is limitedly engaged with the limiting hole (10).

4. The brake device according to claim 3, characterized in that: The invention also comprises a support seat (2), wherein an inner cavity (25) for accommodating a brake seat (61) and a sliding groove (26) for accommodating a brake rod (62) are provided inside the support seat (2).

5. The brake device according to claim 4, characterized in that: The structure of the reset mechanism (7) is a spring, which is located in the inner cavity and has two ends in contact with the support seat (2) and the brake seat (61).

6. The brake device according to claim 4, characterized in that: An outer cover (8) is provided on the outer side of the support seat (2), and the outer cover (8) is connected to the support seat (2). The guide sleeve (3) is fixedly arranged in the inner cavity, and the driving member (4) passes through the outer cover (8) and the guide sleeve (3) and then abuts against the brake member (6).

7. The brake device according to claim 6, characterized in that: One end of the button (5) is sleeved on the driving member (4) and is coaxially hinged with the driving member (4). The inner side of the button includes a push rod (9) with a spherical surface at one end. The driving member (4) is provided with a spherical groove (27) that cooperates with the push rod (9).

8. A cart, characterized in that: The invention comprises the brake device described in claims 1 to 7 above.

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