Brake mechanism and baby carriage

Abstract

The brake mechanism comprises a right wheel seat installed on a right wheel axle, a brake pedal and a brake disc are arranged on the right wheel seat in a rotating fit mode, a brake piece is arranged in the right wheel seat, the brake piece is in transmission fit with the brake pedal, and the brake disc is arranged on the brake pedal. The brake pedal rotates to drive the brake piece to be clamped into or separated from the brake disc; the guide piece is in transmission fit with the brake piece; when the brake piece is clamped into or separated from the brake disc, the guide piece is in sliding fit in the right wheel seat in the axis direction of the right wheel shaft. One end of the traction cable is arranged on the right wheel shaft and is arranged along the axis direction of the right wheel shaft; one end of the traction cable extends into the right wheel seat to be connected with the guide piece, and the other end of the traction cable is connected with the brake disc of the left wheel seat.

Description

Technical Field

[0001] This utility model relates to the field of stroller technology, and in particular to a braking mechanism and a baby stroller. Background Technology

[0002] Strollers are used to carry infants and toddlers to reduce the burden on parents who carry the baby. Strollers generally include a frame and wheels located at the bottom of the frame, front and rear. A braking mechanism is usually installed at the rear wheels so that the stroller can be stopped when needed.

[0003] According to existing technology, there is a stroller braking mechanism, with publication number CN207191141U, which includes a brake disc, a brake cable, and left and right wheel seats. The inner sides of the left and right wheel seats are respectively rotatably connected to a turntable and a brake pedal. A return torsion spring is provided between the turntable and the left wheel seat. The two ends of the brake cable pass through the left and right wheel seats and are connected to the turntable and the brake pedal, respectively, to achieve double braking. However, since the brake cable is directly connected to the brake pedal, the brake cable also rotates when pulled down. That is to say, it is necessary to both drive the brake pedal to rotate and pull the brake cable, which is laborious. Moreover, the brake cable is completely exposed and easily damaged. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a brake mechanism and stroller that is labor-saving, not easily damaged and realizes dual braking.

[0005] To achieve the above objectives, the technical solution of this utility model is: a braking mechanism, including a right wheel seat mounted on a right wheel axle, a brake pedal and a brake disc rotatably fitted on the right wheel seat, and the right wheel seat being provided with:

[0006] A brake component that is in transmission cooperation with a brake pedal; the rotation of the brake pedal causes the brake component to engage or disengage from the brake disc.

[0007] A guide member that engages with the brake component; when the brake component engages with or disengages from the brake disc, the guide member slides within the right wheel seat along the axis of the right wheel axle.

[0008] The traction cable has one end located on the right wheel axle and is positioned along the axis of the right wheel axle; one end of the traction cable extends into the right wheel seat and is connected to the guide member, and the other end of the traction cable is connected to the turntable of the left wheel seat.

[0009] With the above structure, this utility model has the following advantages compared with the prior art: a guide component connected to the traction cable is provided inside the right wheel seat; the brake pedal, brake component, and guide component are linked together; one end of the traction cable is located on the right wheel axle and is set along the axis of the right wheel axle; when the brake pedal drives the brake component to move, it simultaneously drives the guide component to move along the axis of the right wheel axle, thus making the traction cable move along the axis of the right wheel axle, making it easier to drive the traction cable and saving effort; and one end of the traction cable extends inside the right wheel seat, making it less prone to damage; the other end of the traction cable is connected to the turntable of the left wheel seat, realizing one-foot double braking.

[0010] Preferably, the inner side of the right wheel seat is provided with a first mounting groove, and the outer side of the right wheel seat is provided with a second mounting groove; the brake pedal is rotatably engaged in the first mounting groove, and the brake disc is rotatably engaged in the second mounting groove, so as to facilitate the installation of the brake pedal and the brake disc on the right wheel seat.

[0011] Preferably, the bottom surface of the first mounting groove is provided with a first guide groove, which connects the first mounting groove and the second mounting groove. The brake component slides in the first guide groove to guide the brake component.

[0012] Preferably, the bottom surface of the first mounting groove is further provided with a second guide groove, which is arranged along the axis of the right wheel shaft. The guide member is slidably fitted in the second guide groove to guide the guide member.

[0013] Preferably, the second guide groove is connected to the first guide groove to facilitate the transmission and engagement between the brake component and the guide component.

[0014] Preferably, the outer side of the right wheel seat is provided with a cable passage, which is connected to the second guide groove. The traction cable is installed on the guide through the cable passage, which facilitates fixing one end of the index member to the guide.

[0015] Preferably, the outer side of the right wheel axle is provided with a mounting hole, and the right wheel seat is connected to the right wheel axle at the position corresponding to the cable passage. The traction cable passes through the mounting hole, passes through the inside of the right wheel axle and the cable passage in sequence, and extends into the second guide groove, so that part of the traction cable is located inside the right wheel axle and is not easily damaged.

[0016] Preferably, the outer surface of one end of the guide member is provided with a limiting protrusion for limiting the guide member, and the inner sidewall of the second guide groove near the limiting protrusion is provided with a limiting groove for limiting the limiting protrusion, thereby limiting the guide member.

[0017] Preferably, the brake component and the brake pedal, as well as the guide component and the brake component, are fitted with inclined surfaces, resulting in a simple structure.

[0018] A stroller includes the braking mechanism described in any of the above claims, and further includes a left wheel seat mounted on the left wheel axle. The outer side of the left wheel axle is also provided with a mounting hole. The other end of the traction cable extends through the mounting hole into the left wheel seat and connects to the turntable, so that a portion of the traction cable is located inside the left wheel axle and is not easily damaged. Attached Figure Description

[0019] Figure 1 This is a perspective view of the braking mechanism of this utility model.

[0020] Figure 2 This is a perspective view of the connection between the right wheel seat and the brake pedal of the braking mechanism of this utility model.

[0021] Figure 3 This is a perspective view of the connection between the right wheel seat and the brake pedal of the braking mechanism of this utility model.

[0022] Figure 4 This is a perspective view of the right wheel seat of the brake mechanism of this utility model.

[0023] Figure 5 This is a perspective view of the right wheel seat, brake component, and guide component of the braking mechanism of this utility model.

[0024] Figure 6 This is a perspective view of the brake component and guide component of the brake mechanism of this utility model.

[0025] Figure 7 This is a perspective view of the braking mechanism of this utility model applied to a stroller.

[0026] Among them, 1. Right wheel axle, 110. Mounting hole, 120. Fixing hole, 2. Right wheel seat, 210. First mounting groove, 211. First guide groove, 212. Second guide groove, 2121. Limiting groove, 220. Second mounting groove, 230. Cable passage, 3. Brake pedal, 4. Brake disc, 5. Brake component, 510. First inclined surface, 6. Guide component, 610. Limiting protrusion, 611. Opening groove, 620. Ramp, 7. Traction cable, 8. Left wheel axle, 9. Left wheel seat, 10. Turntable, 11. Connecting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a perspective view of the braking mechanism of this utility model, as shown below. Figure 1In the illustrated embodiment, this utility model provides a braking mechanism, including a right wheel axle 1, a right wheel seat 2, a left wheel axle 8, and a left wheel seat 9. The right wheel axle 1 and the left wheel axle 8 are connected by a connecting rod. The right wheel seat 2 is located at the lower end of the right wheel axle 1. A brake pedal 3 is rotatably fitted inside the right wheel seat 2, and a brake disc 4 is rotatably fitted outside the right wheel seat 2. The wheel is mounted on the brake disc 4. The left wheel seat 9 is located at the lower end of the left wheel axle 8. A turntable 10 is rotatably fitted inside the left wheel seat 9, and a brake disc 4 is rotatably fitted outside the left wheel seat 2. The wheel is mounted on the brake disc 4. Specifically, to achieve dual braking with a single foot, it also includes a traction cable 7. One end of the traction cable 7 is located on the outer side of the right wheel seat 2, and the end of one end of the traction cable 7 extends inside the right wheel seat 2. The other end of the traction cable 7 is connected to the turntable 10 of the left wheel seat 9. Because the end of one end of the traction cable 7 is located inside the right wheel seat 2, the end of the traction cable 7 is not exposed, making it less likely to be bumped or damaged, and thus ensuring high reliability. Specifically, the other end of the traction cable 7 is located on the left wheel seat 9 and the end of the other end of the traction cable 7 extends into the left wheel seat 9 and is connected to the turntable 10. This makes the end of the other end of the traction cable 7 not exposed, and it is not easy to be touched or damaged.

[0029] Specifically, the traction cable 7 has the same structure as the brake line in the prior art, and also includes a brake sleeve and a steel wire rope located inside the brake sleeve.

[0030] As one embodiment, the middle part of the traction cable 7 is fixed to the connecting rod 11 to prevent the brake sleeve from moving and to facilitate the pulling of the wire rope; specifically, the middle part of the traction cable 7 is tied to the connecting rod 11 with a bandage, which is a simple structure.

[0031] Figure 2 This is a perspective view of the connection between the right wheel seat and the brake pedal in the braking mechanism of this utility model. Figure 3 This is a perspective view of the brake pedal, brake components, and guide components of the brake mechanism of this utility model, as shown below. Figure 3 and 4In the embodiment shown, to facilitate the movement of the traction cable 7, the right wheel seat 2 is provided with a brake component 5 and a guide component 6 for connecting to one end of the traction cable 7. The brake pedal 3 is driven by the brake component 5. The rotation of the brake pedal 3 causes the brake component 5 to slide laterally, that is, to move in the direction of approaching and moving away from the brake disc 4. One end of the traction cable 7 is located on the right wheel axle 1 and is arranged along the axis of the right wheel axle 1. The end of the traction cable 7 is fixed to the guide component 6. The brake component 5 is driven by the guide component 6. The lateral sliding of the brake component 5 causes the guide component 6 to slide up and down, that is, to move along the axis of the traction cable 7. The brake pedal 3, brake component 5, and guide component 6 are linked together. When the foot presses the brake pedal 3, the brake pedal 3 rotates, causing the brake component 5 to slide laterally. The brake component 5 engages with the brake groove on the brake disc 4 to achieve braking. At this time, the brake component 5 causes the guide component 6 to slide downward, and the guide component 6 pulls down the traction cable 7. The other end of the traction cable 7 achieves dual braking with one foot. Since the brake pedal 3, brake component 5, and guide component 6 are linked together, and one end of the traction cable 7 is set along the axis of the right wheel axle 1, the guide component 6 moves along the axis of the right wheel axle 1, making it easier to drive the traction cable 7 to move, saving effort.

[0032] As one example, such as Figure 2 The right wheel seat 2 has a first mounting groove 210 on the inner side and a second mounting groove 220 on the outer side. The brake pedal 3 is rotatably fitted in the first mounting groove 210 and the brake disc 4 is rotatably fitted in the second mounting groove 220.

[0033] Figure 4 This is a perspective view of the right wheel seat of the braking mechanism of this utility model. Figure 5 This is a perspective view of the right wheel seat, brake component, and guide component of the braking mechanism of this utility model, as shown below. Figure 4 and 5 In the illustrated embodiment, the bottom surface of the first mounting groove 210 is provided with a first guide groove 211, which connects the first mounting groove 210 and the second mounting groove 220. The brake component 5 slides within the first guide groove 211, serving a guiding function. Further, the bottom surface of the first mounting groove 210 is also provided with a second guide groove 212, the axis of which is in the same plane as the axis of the right wheel axle 1. The guide component 6 slides up and down within the second guide groove 212, also serving a guiding function. Specifically, the second guide groove 212 connects with the first guide groove 211, allowing the brake component 5 and the guide component 6 to contact in the area between the first guide groove 211 and the second guide groove 212. This results in a large contact area between the brake component 5 and the guide component 6, making it easier for the brake component 5 to move the guide component 6.

[0034] As one embodiment, the outer side of the right wheel seat 2 is provided with a cable passage 230, which communicates with the second guide groove 212. The traction cable 7 is installed on the guide member 6 through the cable passage 230, which facilitates fixing one end of the index member 7 to the guide member 6. Specifically, in conjunction with Figure 1 , 3 4. The outer side of the right wheel axle 1 is provided with a mounting hole 110. The right wheel seat 2 is connected to the right wheel axle 1 at the position corresponding to the cable passage 230. The traction cable 7 passes through the mounting hole 110, passes through the inside of the right wheel axle 1 and the cable passage 230 in sequence, and extends into the second guide groove 212. This ensures that part of the traction cable 7 is located inside the right wheel axle 1, making it difficult to touch and less prone to damage. Specifically, the axis of the cable passage 230 is on the same straight line as the axis of the right wheel axle 1, ensuring that one end of the traction cable 7 moves along the axis of the right wheel axle 1, saving effort.

[0035] Specifically, the mounting hole 110 is located inside the right wheel axle 1, and the right wheel axle 1 has a fixing hole 120 on the outside. The right wheel seat 2 is inserted into the right wheel axle 1 and screwed onto the right wheel seat 2 by bolts passing through the fixing hole 120.

[0036] Figure 6 This is a perspective view of the brake component and guide component of the brake mechanism of this utility model, as shown below. Figure 6 In the illustrated embodiment, the transmission between the brake component 5 and the brake pedal 3, as well as between the guide component 6 and the brake component 5, is achieved through a beveled engagement. Specifically, the upper surface of the brake component 5 near the brake pedal 3 has a first bevel 510, and the side of the brake pedal 3 near the brake component 5 has a groove. The inner wall of the groove, corresponding to the position of the first bevel 510, is also a bevel. The transmission engagement between the brake component 5 and the brake pedal 3 is achieved by the engagement of the first bevel and the inner wall of the groove. Specifically, the surface of the guide component 6 that contacts the brake component 5 is a slope 620, and the bottom surface of the brake component 5, corresponding to the position of the slope 620, is also a slope. The transmission engagement between the brake component 5 and the guide component 6 is achieved by the engagement of the slope 620 and the bottom surface of the brake component 5.

[0037] In one embodiment, the outer surface of one end of the guide member 6 is provided with a limiting protrusion 610 for limiting the guide member 6, and the inner sidewall of the second guide groove 212 near the limiting protrusion 212 is provided with a limiting groove 2121 for limiting the limiting protrusion 610, thereby limiting the guide member 6 vertically. Specifically, the limiting protrusion 610 is provided at one end of the guide member 6 near the right wheel axle 1, and the outer side of the limiting protrusion 610 is provided with an opening groove 611. One end of the traction cable 7 is installed in the opening groove 611 to facilitate the fixing of the traction cable 7.

[0038] Figure 7 This is a perspective view of the braking mechanism of this utility model applied to a stroller, as shown. Figure 7In the illustrated embodiment, this utility model provides a stroller including a braking mechanism and a left wheel seat 9 mounted on the left wheel axle 8. The outer side of the left wheel axle 8 also has a mounting hole 110. The other end of the traction cable 7 extends through the mounting hole 110 into the left wheel seat 9 and connects to the turntable 10, so that a portion of the traction cable 7 is located inside the left wheel axle 8, making it less prone to damage. The left wheel seat 9 also contains a brake component 5. Specifically, the mounting hole 110 is located inside the left wheel axle 8, and a fixing hole 120 is also provided on the outer side of the left wheel axle 8. The left wheel seat 9 is inserted into the left wheel axle 8 and screwed onto the left wheel seat 9 using bolts passing through the fixing hole 120. Specifically, the lower ends of the left wheel axle 8 and the right wheel axle 1 are hollow, facilitating the installation of the left wheel seat 9 and the right wheel seat 2, as well as the installation of the traction cable 7.

[0039] Specifically, the turntable 10 has one less pedal than the brake pedal 3, but the rest of the structure is the same. Specifically, the position where the brake component 5 mates with the brake pedal 3 is off-center from the rotation center of the brake pedal 3, ensuring that the brake pedal 3 can drive the brake component 5 to move; similarly, the other end of the traction cable 7 is installed at the position of the left wheel seat 9 off-center from the rotation center of the turntable 10, ensuring that the traction cable 7 can drive the turntable 10 to rotate, and the turntable 10 drives the brake component 5 to engage in the brake disc 4 to achieve wheel braking of the left wheel seat 9.

[0040] Specifically, brake component 5 is a brake pin.

[0041] Specifically, the principle of this utility model is to provide a guide 6 connected to the traction cable 7 inside the right wheel seat 2. The brake pedal 3, brake component 5, and guide 6 are linked together. One end of the traction cable 7 is located on the right wheel axle 1 and is arranged along the axis of the right wheel axle 1. When the brake pedal 3 drives the brake component 5 to move, it simultaneously drives the guide 6 to move along the axis of the right wheel axle 1. This makes it easier to drive the traction cable 7 to move along the axis of the right wheel axle 1, saving effort. Moreover, one end of the traction cable 7 extends inside the right wheel seat 2, making it less prone to damage. The other end of the traction cable 7 is connected to the turntable 10 of the left wheel seat 9, realizing one foot double braking.

[0042] Working principle: 1. When the foot is pressed on the brake pedal 3, the brake pedal 3 drives the brake component 5 to engage with the brake disc 4 of the right wheel seat 2, thus braking the right wheel; at the same time, the brake component 5 drives the guide component 6 to slide downward, the guide component 6 pulls one end of the traction cable 7, and the other end of the traction cable 7 pulls the turntable 10 to rotate, the turntable 10 drives the brake component 5 in the left wheel seat 9 to engage with the brake disc 4 in the left wheel seat 9, thus braking the left wheel; 2. There are compression springs between the brake component 5 and the corresponding left wheel seat 9 and right wheel seat 2, and there are return torsion springs between the turntable 10 and the left wheel seat 9 and between the brake pedal 3 and the right wheel seat 2. Releasing the foot will reset the brake pedal 3, thus releasing the brake.

[0043] Based on the above solutions, if any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A braking mechanism, comprising a right wheel seat (2) mounted on a right wheel axle (1), wherein a brake pedal (3) and a brake disc (4) are rotatably fitted on the right wheel seat (2), characterized in that: The right wheel seat (2) is provided with: Brake component (5), the brake component (5) is in transmission cooperation with brake pedal (3), the rotation of brake pedal (3) drives brake component (5) to engage or disengage from brake disc (4); The guide (6) is in transmission cooperation with the brake (5); when the brake (5) is engaged or disengaged from the brake disc (4), the guide (6) is slidably engaged in the right wheel seat (2) along the axis of the right wheel axle (1); The traction cable (7) has one end located on the right wheel axle (1) and is arranged along the axis of the right wheel axle (1); one end of the traction cable (7) extends into the right wheel seat (2) and is connected to the guide (6); the other end of the traction cable (7) is connected to the turntable (10) of the left wheel seat (9).

2. The braking mechanism according to claim 1, characterized in that: The inner side of the right wheel seat (2) is provided with a first mounting groove (210), and the outer side of the right wheel seat (2) is provided with a second mounting groove (220); the brake pedal (3) is rotatably fitted in the first mounting groove (210), and the brake disc (4) is rotatably fitted in the second mounting groove (220).

3. The braking mechanism according to claim 2, characterized in that: The bottom surface of the first mounting groove (210) is provided with a first guide groove (211), the first guide groove (211) connects the first mounting groove (210) and the second mounting groove (220), and the brake component (5) is slidably fitted in the first guide groove (211).

4. The braking mechanism according to claim 3, characterized in that: The bottom surface of the first mounting groove (210) is also provided with a second guide groove (212), which is arranged along the axis of the right wheel shaft (1), and the guide (6) is slidably fitted in the second guide groove (212).

5. The braking mechanism according to claim 4, characterized in that: The second guide groove (212) is connected to the first guide groove (211).

6. The braking mechanism according to claim 4, characterized in that: The outer side of the right wheel seat (2) is provided with a wire passage (230), which is connected to the second guide groove (212). The traction cable (7) is installed on the guide (6) through the wire passage (230).

7. The braking mechanism according to claim 6, characterized in that: The outer side of the right wheel axle (1) is provided with a mounting hole (110). The right wheel seat (2) is connected to the right wheel axle (1) at the position corresponding to the wire passage (230). The traction cable (7) passes through the mounting hole (110) and passes through the inside of the right wheel axle (1) and the wire passage (230) in sequence to enter the second guide groove (212).

8. The braking mechanism according to claim 4, characterized in that: The outer surface of one end of the guide (6) is provided with a limiting protrusion (610) for limiting the guide (6), and the inner sidewall of the second guide groove (212) near the limiting protrusion (610) is provided with a limiting groove (2121) for limiting the limiting protrusion (610).

9. The braking mechanism according to claim 1, characterized in that: The brake component (5) and the brake pedal (3) are fitted together by inclined surfaces, as are the guide component (6) and the brake component (5).

10. A stroller comprising the braking mechanism according to any one of claims 1-9, characterized in that: It also includes a left wheel seat (9) mounted on the left wheel axle (8), and the outer side of the left wheel axle (8) is also provided with a mounting hole (110). The other end of the traction cable (7) passes through the mounting hole (110) and extends into the left wheel seat (9) through the inside of the left wheel axle (8) to connect with the turntable (10).

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