CN102689646A - Brake mechanism of baby carriage - Google Patents

Abstract

The invention provides a baby carriage brake mechanism, which comprises a first rear wheel, a second rear wheel, a main brake component, a secondary brake component and a linkage component, wherein the main brake component is arranged at the first rear wheel through a first rotating shaft and brakes the first rear wheel, the secondary brake component is arranged at the second rear wheel through a second rotating shaft and brakes the second rear wheel, the main brake component comprises a first brake block, a first stop groove matched with the first brake block is distributed on the periphery of the inner side surface of the first rear wheel, the first brake block is slidably sleeved on the first rotating shaft and detachably clamped in the first stop groove, the secondary brake assembly comprises a second brake block, one end of the linkage piece is connected with the first brake block, the other end of the linkage piece is connected with the second brake block, second stop grooves matched with the second brake block are distributed on the periphery of the inner side face of the second rear wheel, and the second brake block is slidably sleeved on the second rotating shaft under the driving of the first brake block and detachably clamped in the second stop grooves.

Description

baby stroller brake mechanism

technical field

The invention relates to a baby carriage structure, in particular to a baby carriage braking mechanism.

Background technique

The stroller is used as a means of transportation for the baby, and is used to carry the baby so as to be convenient for the parents to push when they go out. There are various baby carriages on the market at present, which can be divided into ordinary baby carriages, foldable baby carriages, single or double-seat baby carriages, etc. according to the functions and usage requirements of the baby carriages. For the convenience of the user, the stroller is generally equipped with at least three freely rotatable wheels. By means of the wheels, the user can easily push the stroller forward. However, when the user uses the stroller to carry the baby, If the user does not support the baby carriage or leaves the baby carriage, the baby carriage will be free to move without any restrictions. The baby sitting in the stroller can easily be in danger.

In order to solve the above problems, a brake mechanism is provided on the existing baby carriage. Since the baby carriage is a left-right symmetrical structure, usually the left and right sides of the baby carriage are respectively provided with a brake mechanism to adjust the wheels on the left and right sides of the baby carriage. Apply the brakes. The existing stroller includes a rear foot frame, a first rear wheel and a second rear wheel, the first rear wheel is pivotally connected to the lower left end of the rear foot frame through a first rotating shaft, and the second rear wheel is pivotally connected to the lower left end of the rear foot frame through a second rotating shaft. It is pivotally connected to the lower right end of the rear foot frame, and there are many ways to set up the brake mechanism. The more common one is to set a brake mechanism at the left and right lower ends of the rear foot frame of the baby carriage respectively, wherein one of the brake mechanisms The mechanism is arranged beside the first rear wheel and is used for braking the first rear wheel, and the other brake mechanism is arranged beside the second rear wheel and is used for braking the second rear wheel. The brake mechanism includes a brake pedal pivotally connected to the lower end of the rear foot frame of the baby carriage and a stop lever formed by protruding from the brake pedal; There are stop slots matching the stop bars on the wheels, and the stop bars can be detachably engaged in the stop slots by stepping on the brake pedal, so as to stop the first, The purpose of the second rear wheel turning. Since the brake mechanisms are independently located at the left and right lower ends of the rear foot frame of the stroller, they need to be controlled separately during use, so the operation is relatively troublesome. If an emergency occurs, it is too late to turn the first and second rear wheels on both sides simultaneously If the brake is applied, it is easy to cause the baby carriage to shake or rotate, causing the baby carriage to tip over, thus causing the baby in the car to be in danger.

Therefore, it is necessary to provide an improved baby carriage brake mechanism to overcome the above-mentioned defects.

Contents of the invention

The object of the present invention is to provide a baby carriage brake mechanism that can brake the wheels on both sides of the rear foot frame at the same time, so that it is easy to use, safe and reliable.

In order to achieve the above object, the present invention provides a brake mechanism for a stroller, comprising a first rear wheel, a second rear wheel, a main brake assembly and a slave brake assembly, the main brake assembly is arranged on the first rear wheel through a first rotating shaft place and brake the first rear wheel, the slave brake assembly is arranged at the second rear wheel through the second rotating shaft and brakes the second rear wheel, wherein it also includes a linkage, the The main brake assembly includes a first brake shoe, a first stop groove matching the first brake shoe is distributed on the inner surface of the first rear wheel, and the first brake shoe is slidably sleeved on the first brake shoe. on the first rotating shaft and detachably engaged in the first stop groove, the slave brake assembly includes a second brake shoe, one end of the link is connected to the first brake shoe, and the other end is connected to For the second brake shoe, second stop grooves matching the second brake shoe are distributed around the inner surface of the second rear wheel, and the second brake shoe is driven by the first brake shoe It is slidably sleeved on the second rotating shaft and detachably engaged in the second stop groove.

Preferably, the main brake assembly further includes a first wheel seat, the first wheel seat is fixedly sleeved outside the first rotating shaft and forms a first receiving space, and the first brake shoe is housed in the first In a receiving space, the first brake block is provided with a first brake pin, and the first brake pin can slide through the first wheel seat and detachably engage in the first stop groove middle.

Preferably, the main brake assembly further includes a pedal, the pedal is pivotally connected to the first wheel seat, one end of the pedal is connected to the brake shoe, and the other end protrudes from the first wheel base. Outside the seat.

Preferably, the slave brake assembly includes a second wheel seat and a spring, the second wheel seat is fixedly sleeved outside the second rotating shaft and forms a second accommodation space, and the second brake shoe is accommodated in the In the second accommodation space, the second brake block is provided with a second brake pin, and the second brake pin can slide through the second wheel seat and detachably engage with the second stop slot. The spring is in contact with the upper end of the second brake block and the second wheel seat.

Preferably, a first fixing column protrudes from the inner side of the first wheel seat, and the first fixing column penetrates through the lower end of one side of the rear foot frame of the stroller and opens a first through hole, so One end of the first rotating shaft passes through the first through hole and is pivotally connected to the first rear wheel, and the other end of the first rotating shaft is fixedly connected to the first wheel seat.

Preferably, the first brake shoe is provided with a first sliding hole, the first sliding hole is slidably sleeved outside the first fixing column, and the upper end of the first brake shoe is fixed with the The first brake pin, the first wheel base is provided with a second sliding hole corresponding to the position of the first brake pin, and the first brake pin can slide through the second sliding hole and be detachably engaged. Fit into the first stop groove.

Preferably, at least two first limiting blocks are provided on the inner side of the first wheel seat, a first clamping section is formed between the first limiting blocks, and the first brake blocks are slidably The clamp is set in the first clamping section.

Preferably, the first and second sliding holes are both waist-shaped holes.

Preferably, the inner side of the first wheel seat is also protruded with a boss and a pivotal column, the pedal is pivotally connected to the pivotal column, and one end of the pedal is provided with a connecting hole and a A limiting hole, the first brake block is provided with a connecting block that matches the connecting hole, and the protruding post is slidably clamped in the limiting hole.

Preferably, both the connecting hole and the limiting hole are arc-shaped holes.

Preferably, a second fixing column protrudes from the inner side of the second wheel seat, and the second fixing column penetrates the lower end of the other side of the rear foot frame of the stroller and has a second through hole through it. One end of the second rotating shaft passes through the second through hole and is pivotally connected to the second rear wheel, and the other end of the first rotating shaft is fixedly connected to the second wheel seat.

Preferably, the second brake shoe is provided with a third sliding hole, the third sliding hole is slidably sleeved outside the second fixing column, and the lower end of the second brake shoe is fixed with the the second brake pin, the second wheel seat is provided with a fourth sliding hole corresponding to the position of the second brake pin, the second brake pin can slide through the fourth sliding hole and detachably engage Fit into the second stop groove.

Preferably, at least two second limiting blocks are provided on the inner side of the second wheel seat, a second clamping section is formed between the second limiting blocks, and the second brake blocks are slidably The clamp is set in the second clamping section.

Preferably, the third and fourth sliding holes are both waist-shaped holes.

Compared with the prior art, the baby stroller braking mechanism of the present invention includes a master brake assembly, a slave brake assembly and a link connecting the master brake assembly and the slave brake assembly, because the master brake assembly and the slave brake assembly Connected by a linkage, so when the main brake block of the main brake assembly is engaged in the first brake groove or separated from the first brake groove, the main brake block can simultaneously drive The secondary brake block of the secondary brake assembly is engaged in the second stop groove or separated from the second stop groove, so that the baby stroller brake mechanism can be simultaneously arranged on both sides of the rear foot frame. The wheels are braked, so it is easy to use, safe and reliable.

The present invention will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention.

Description of drawings

Fig. 1 is a schematic structural view of a stroller with a braking mechanism for the stroller of the present invention.

Fig. 2 is an exploded view of the structure of the main brake assembly of the baby carriage brake mechanism of the present invention.

Fig. 3 is an exploded view of the structure of the main brake assembly of the baby stroller brake mechanism shown in Fig. 2 at another angle.

Fig. 4 is an exploded view of the slave brake assembly of the baby carriage brake mechanism of the present invention.

Fig. 5 is a schematic structural view of the brake mechanism of the baby carriage in a state of the present invention.

Fig. 6 is a structural schematic view of another state of the baby carriage brake mechanism of the present invention.

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like components. As mentioned above, the present invention provides a baby carriage brake mechanism that can brake the wheels on both sides of the rear foot frame at the same time, so that it is easy to use, safe and reliable.

With reference to Fig. 1-6, in a specific embodiment of the present invention, described stroller brake mechanism comprises first rear wheel 11, second rear wheel 12, master brake assembly 13 and slave brake assembly 14, described first rear wheel The wheel 11 is pivotally connected to the right lower end 21 of the rear foot frame 20 of the stroller 1 through the first rotating shaft 31 , and the second rear wheel 12 is pivotally connected to the left lower end 22 of the rear foot frame 20 of the baby carriage 1 through the second rotating shaft 32 , the main brake assembly 13 is arranged at the first rear wheel 11 and brakes the first rear wheel 11, and the slave brake assembly 14 is arranged at the second rear wheel 12 and brakes the second rear wheel 12 Apply the brakes.

On the inner side of the first rear wheel 11, a first stop groove 110 is distributed in a circle around the first rotating shaft 31 as the axis and at a distance from the first rotating shaft 31. The main brake assembly 13 includes a first wheel seat 131, a first brake block 132 and a pedal 133, the first wheel seat 131 is fixedly sleeved outside the first rotating shaft 31 and forms a first receiving space 1310, the The first brake block 132 is slidably sleeved on the outside of the first rotating shaft 31 and accommodated in the first receiving space 1310, the pedal 133 is pivotally connected to the inner surface of the first wheel base 131 and One end of the pedal 133 is connected to the brake block 132, and the other end protrudes outside the first wheel seat 131. The first brake block 132 is provided with a first brake pin 134, and the first brake block 132 is provided with a first brake pin 134. The pin 134 slidably passes through the wheel seat 131 and is detachably engaged in the first stop groove 110; the inner side of the second rear wheel 12 is centered on the second rotating shaft 32 And there is a whole circle of second stop groove 120 distributed on the periphery with a distance from the second rotating shaft 32. The slave brake assembly 14 includes a second wheel seat 141, a second brake block 142 and a spring 143, The second wheel seat 141 is fixedly sleeved outside the second rotating shaft 32 and forms a second receiving space 1410, and the second brake block 142 is slidably sleeved outside the second rotating shaft 32 and accommodated in In the second receiving space 1410, the second brake block 142 is provided with a second brake pin 144, and the second brake pin 144 can slide through the second wheel seat 141 and engage in a detachable manner. In the second stop groove 120, the spring 143 is in contact between the upper end of the second brake block 142 and the second wheel seat 141; referring to 5-6, the baby carriage brake mechanism also includes A link 15 , in this embodiment, the link 15 is a cable, one end of the cable is connected to the first brake block 132 , and the other end is connected to the second brake block 142 .

2-3 and 5-6, the first wheel seat 131 includes a first base 131a and a first cover 131b, the first base 131a and the first cover 131b are detachably covered Connecting to form the first receiving space 1310, the inner side of the first base 131a protrudes from the first fixing column 1311, the convex column 1312 and the pivoting column 1313, the first fixing column 1311 is a hollow A cylinder, the center of the cylinder is penetrated with a first through hole 1314, and the first fixing column 1311 is fixedly penetrated in the first through hole 210 provided at the lower right end 21 of the rear foot frame 20. One end of a rotating shaft 31 passes through the first through hole 1314 and is pivotally connected to the first rear wheel 11, the other end of the first rotating shaft 31 is fixedly connected to the first cover 131b and the first cover The body 131b is covered and connected to the first base 131a. Specifically, the first brake block 132 is provided with a first sliding hole 1320, and the first brake block 132 is slidably sleeved on the outside of the first fixing column 1311 through the first sliding hole 1320, so that The first brake pin 134 is fixedly pierced through the upper end of the first brake block 132, and a second sliding hole 1315 is opened through the first base 131a corresponding to the position of the first brake pin 134. , the second sliding holes 1320 and 1315 are both waist-shaped holes, the first brake pin 134 can slide through the second sliding hole 1315 and be detachably engaged in the first stop groove 110 , The relative sliding distance between the first fixing column 1311 and the first sliding hole 1320 is equal to the sliding distance of the first brake pin 134 in the second sliding hole 1315 . More specifically, a pivot hole 1330 matching the pivot post 1313 is opened in the middle of the pedal 133, and a connecting hole 1331 and a connection hole 1331 are opened at one end of the pedal 133 located in the first receiving space 1310. The limiting hole 1332, the connecting hole 1331 and the limiting hole 1332 are both arc-shaped holes, the first brake block 132 is provided with a connecting block 1321 that matches the connecting hole 1331, and the boss 1312 is pierced The connecting block 1321 is slidably locked in the limiting hole 1332 and the connecting hole 1331 . The limiting hole 1332 is a waist-shaped hole, and the two ends of the limiting hole 1332 are respectively provided with limiting grooves, and the protruding post 1312 cooperates with the limiting grooves, so that the pedal 133 will The baby stroller brake mechanism is positioned in two different states of locking and unlocking.

At least two oppositely arranged first limiting blocks 1316 are arranged on the inner side of the first base 131a, and a first clamping section is formed between the two opposing first limiting blocks 1316, and the first clamping section is formed between the first limiting blocks 1316, A brake block 132 is sheathed on the first fixing column 1311 and is slidably locked in the first clamping section. The setting of the first limit block 1316 makes the first brake block 132 The sliding is limited within the first clamping section, so that the sliding track of the first brake block 132 is straight.

4-6, the second wheel seat 141 includes a second base 141a and a second cover 141b, the second base 141a and the second cover 141b are detachably connected to form the In the second receiving space 1410, a second fixing column 1411 protrudes from the inner side of the second base 141a, and the second fixing column 1411 is a hollow cylinder, and a second passage is opened through the center of the cylinder. Hole 1412, the second fixing column 1411 is fixedly passed through the second through hole 220 opened at the left lower end 22 of the rear foot frame 20, one end of the second rotating shaft 32 passes through the second through hole 1412 and It is pivotally connected with the second rear wheel 12, and the other end of the second rotating shaft 32 is fixedly connected with the second cover 141b. Specifically, the second brake block 142 is provided with a third sliding hole 1420, and the second brake block 142 is slidably sleeved on the outside of the second fixing column 1411 through the third sliding hole 1420, so that The lower end of the second brake block 142 is fixedly pierced with the second brake pin 144, and the second base 141a is provided with a fourth sliding hole 1413 corresponding to the position of the second brake pin 144. The third, Both the fourth sliding holes 1420 and 1413 are waist-shaped holes, the second brake pin 144 can slide through the fourth sliding hole 1413 and detachably engage with the second stop groove 120 , so The sliding distance between the second fixing post 1411 and the third sliding hole 1420 is equal to the sliding distance of the second brake pin 144 in the fourth sliding hole 1413 .

At least two oppositely disposed second limiting blocks 1414 are arranged on the inner side of the second base 141a, and a second clamping section is formed between the two opposing second limiting blocks 1414. Two brake blocks 142 are sheathed outside the second fixing column 1411 and are slidably locked in the second clamping section. Similarly, the setting of the second limit block 1414 makes the second brake The sliding of the block 142 is limited in the second clamping section, so that the sliding track of the second braking block 142 is a straight line.

Below in conjunction with Fig. 1-6, the working principle of the baby carriage braking mechanism of the present invention is described in detail, specifically as follows:

In the initial state, the stroller 1 is in a normal use state. At this time, the first brake block 132 is located at the lower end of the first wheel seat 131 , and the upper end of the first sliding hole 1320 is in contact with the first fixing column 1311 And the first brake pin 134 is separated from the first stop groove 110, the protrusion 1312 is located at the rightmost end of the limiting hole 1332 of the pedal 133, and at the same time, the second brake block 142 is in contact with The spring 143 is located at the upper end of the second wheel seat 141, so that the spring 143 is compressed by the second brake block 142 and the inner wall of the second wheel seat 141, and the lower end of the second sliding hole 1420 Contradicts the second fixing column 1411 and the second brake pin 144 is separated from the second stop groove 120; The outer part steps on the pedal 133. At this time, the step on the pedal 133 rotates clockwise around the pivot post 1313 and makes the leftmost end of the limiting hole 1332 touch the protruding post 1312, and the step on the pedal 133 rotates At the same time, the first brake block 132 and the first brake pin 134 fixed on the first brake block 132 are driven to slide upward in the first limit interval and away from the first rotating shaft 31 until the first The lower end of the sliding hole 1320 is in contact with the first fixing column 1311 and the first brake pin 134 is engaged in the first stop groove 110. When the first brake block 132 slides upward, the second brake pin 132 Under the reaction force of the spring 143 , the brake block 142 slides downward in the second limit range and moves away from the second rotating shaft 32 until the upper end of the second sliding hole 1420 touches the second fixing post 1411 . The second brake pin 144 fixed on the lower end of the second brake block 142 is engaged in the second stop groove 120, so the baby carriage brake mechanism realizes the brake mechanism on both sides of the rear foot frame 20. The first and second rear wheels 11 and 12 brake at the same time; when the baby carriage 1 needs to be used again, the pedal 133 is moved upward to rotate the pedal 133 counterclockwise, and the boss 1312 Slide to the rightmost end of the limit hole 1332, at this time, the first brake shoe 132 slides downward in the first limit interval so that the first brake pin 134 is released from the first stop groove 110 At the same time, the second brake block 142 slides upward in the second limit interval under the action of the linkage 15 so that the second brake pin 144 is released from the second stop The groove 120 is separated, so the brakes on the first and second rear wheels 11, 12 are released at the same time.

To sum up, the baby carriage brake mechanism can brake the wheels on both sides of the rear foot frame at the same time, so it is easy to use, safe and reliable.

The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the above-disclosed embodiments, but should cover various modifications and equivalent combinations made according to the essence of the present invention.

Claims (14)

1. A brake mechanism for a stroller, comprising a first rear wheel, a second rear wheel, a master brake assembly and a slave brake assembly, the master brake assembly is arranged at the first rear wheel through a first rotating shaft and The first rear wheel is braked, and the slave brake assembly is arranged at the second rear wheel through the second rotating shaft to brake the second rear wheel, and it is characterized in that it also includes a linkage, the The main brake assembly includes a first brake shoe, a first stop groove matching the first brake shoe is distributed on the inner surface of the first rear wheel, and the first brake shoe is slidably sleeved on the The first rotating shaft is detachably engaged in the first stop groove, the slave brake assembly includes a second brake shoe, one end of the linkage member is connected to the first brake shoe, and the other end is connected to the second brake shoe. The second brake shoe, the inner surface of the second rear wheel is distributed with a second stop groove matching the second brake shoe, the second brake shoe can be driven by the first brake shoe Slidingly sleeved on the second rotating shaft and detachably engaged in the second stop groove. 2. The baby stroller brake mechanism according to claim 1, wherein the main brake assembly further comprises a first wheel seat, and the first wheel seat is fixedly sleeved on the outside of the first rotating shaft and forms a first accommodating space, the first brake shoe is accommodated in the first accommodating space, the first brake shoe is provided with a first brake pin, and the first brake pin can slide through the first wheel seat And detachably engaged in the first stop groove. 3. The baby stroller brake mechanism according to claim 2, wherein the main brake assembly further includes a pedal, the pedal is pivotally connected to the first wheel seat and one end of the pedal is connected to the The first brake block is connected, and the other end protrudes outside the first wheel seat. 4. The baby stroller brake mechanism according to claim 1, wherein the slave brake assembly includes a second wheel seat and a spring, and the second wheel seat is fixedly sleeved outside the second rotating shaft and forms a second wheel seat. Two accommodation spaces, the second brake block is accommodated in the second accommodation space, the second brake block is provided with a second brake pin, and the second brake pin can slide through the second wheel The seat is detachably engaged and connected with the second stop groove, and the spring resists between the upper end of the second brake shoe and the second wheel seat. 5. The baby stroller brake mechanism according to claim 3, wherein a first fixing column protrudes from the inner side of the first wheel seat, and the first fixing column passes through the rear foot frame of the baby stroller One side of the lower end of the first through hole is opened through, one end of the first rotating shaft passes through the first through hole and is pivotally connected with the first rear wheel, and the other end of the first rotating shaft is fixedly connected to the Describe the first round seat. 6. The baby stroller brake mechanism according to claim 5, wherein a first sliding hole is opened on the first brake block, and the first sliding hole is slidably sleeved on the first fixing column In addition, the upper end of the first brake block is fixed with the first brake pin, and the first wheel base is provided with a second sliding hole at a position corresponding to the first brake pin, and the first brake pin can slide passing through the second sliding hole and detachably engaged in the first stop groove. 7. The baby stroller brake mechanism according to claim 6, characterized in that at least two first limiting blocks are provided on the inner side of the first wheel seat, and a second limiting block is formed between the first limiting blocks. A clamping section, the first brake block is slidably clamped in the first clamping section. 8. The baby stroller brake mechanism according to claim 6, wherein the first and second sliding holes are waist-shaped holes. 9. The baby stroller brake mechanism according to claim 5, characterized in that, the inner side surface of the first wheel seat is also protruded with a convex post and a pivot post, and the pedal is pivotally connected to the pivot post. On the post, one end of the pedal is provided with a connecting hole and a limiting hole, the first brake block is provided with a connecting block that matches the connecting hole, and the protruding post is slidably clamped on the limiting hole. inside the bit hole. 10. The baby stroller brake mechanism according to claim 9, wherein the connecting hole and the limiting hole are both arc-shaped holes. 11. The baby stroller brake mechanism according to claim 4, wherein a second fixing post protrudes from the inner side of the second wheel seat, and the second fixing post passes through the rear foot frame of the baby stroller The lower end of the other side of the lower end is provided with a second through hole, one end of the second rotating shaft passes through the second through hole and is pivotally connected with the second rear wheel, and the other end of the first rotating shaft is fixedly connected The second wheel seat. 12. The baby stroller brake mechanism according to claim 11, wherein a third sliding hole is opened on the second brake block, and the third sliding hole is slidably sleeved on the second fixing column In addition, the lower end of the second brake block is fixed with the second brake pin, and the second wheel seat is provided with a fourth sliding hole corresponding to the position of the second brake pin, and the second brake pin can slide passing through the fourth sliding hole and detachably engaged in the second stop groove. 13. The baby stroller brake mechanism according to claim 11, characterized in that at least two second limit blocks are arranged on the inner side of the second wheel seat, and a second limit block is formed between the second limit blocks. Two clamping sections, the second brake shoe is slidably clamped in the second clamping section. 14. The baby stroller brake mechanism according to claim 12, wherein the third and fourth sliding holes are waist-shaped holes.

Images