Baby carriage brake mechanism

Abstract

The utility model provides a baby carriage brake mechanism which comprises a pair of first sliding rods and a brake motor. The two first sliding rods are transversely arranged in the lower box body in a sliding mode, the outer ends of the two first sliding rods directly face the inner side faces of the synchronous belt wheels respectively, and each first sliding rod is sleeved with a first reset spring. The brake motor is fixedly arranged in the lower box body, a main shaft of the brake motor is connected with a two-way side pulley, the two-way side pulley extends to the position between the inner ends of the two first sliding rods, the two sides of the two-way side pulley are each provided with a spiral inclined face, and the two-way side pulley is in sliding contact with the inner ends of the two first sliding rods through the spiral inclined faces; when the brake motor rotates, the two-way side pulley can eject the two first sliding rods towards the two sides through the spiral inclined faces, so that the outer ends of the two first sliding rods stretch into the insertion holes in the inner sides of the corresponding synchronous pulleys correspondingly to achieve braking.

Description

Technical Field

[0001] The utility model belongs to the field of children's carriers, and in particular relates to a brake mechanism for a baby carriage. Background Art

[0002] With the development of society, baby strollers will also develop towards intelligence. Baby strollers have begun to have driving mechanisms, which can realize the power-assisted or even automatic driving functions of the baby stroller. However, when the baby stroller is in the power-assisted or automatic driving state, it is difficult for the user to brake the moving baby stroller with the foot brake, resulting in the power-assisted or automatic driving baby stroller having no time to avoid danger. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a baby stroller brake mechanism for braking the rear wheels of the baby stroller, wherein the inner sides of the two rear wheels of the baby stroller are respectively connected with synchronous pulleys, and the side surfaces of each of the synchronous pulleys are respectively provided with a plurality of jacks, and the baby stroller brake mechanism comprises: a brake box, wherein the brake box is arranged between the two synchronous pulleys, and the brake box comprises a lower box body and an upper box body; an automatic brake mechanism is arranged in the brake box, and the automatic brake mechanism comprises:

[0004] A pair of first slide bars, wherein the two first slide bars are transversely slidably disposed in the lower box body, the outer ends of the two first slide bars are respectively facing the inner side surface of one of the synchronous pulleys, and each of the first slide bars is respectively provided with a first return spring;

[0005] A brake motor, wherein the brake motor is fixedly arranged in the lower box body, a bidirectional side pulley is connected to the main shaft of the brake motor, the bidirectional side pulley extends between the inner ends of the two first slide bars, and spiral inclined surfaces are respectively arranged on both sides of the bidirectional side pulley, and the spiral inclined surfaces are in sliding contact with the inner ends of the two first slide bars;

[0006] When the brake motor rotates, the bidirectional side pulley can push the two first slide bars to both sides through the spiral inclined surface, so that the outer ends of the two first slide bars are respectively extended into the corresponding jacks on the inner side of the synchronous pulley to achieve braking.

[0007] The utility model also has the following optional features.

[0008] Optionally, the inner ends of the two first sliding rods are respectively provided with first radial long holes, and the lower box body is provided with two first limiting rods, and the two first limiting rods pass through the first radial long holes respectively.

[0009] Optionally, a foot brake mechanism is further provided in the brake box, and the foot brake mechanism comprises:

[0010] A pair of second slide bars, wherein the two second slide bars are transversely slidably disposed in the lower box body, the outer ends of the two second slide bars are respectively facing the inner side surface of one of the synchronous pulleys, and each of the second slide bars is respectively provided with a second return spring;

[0011] A brake key, which is vertically slidably arranged in the lower box body, and the upper end of the brake key extends out of the upper box body. A top block is arranged below the brake key, and the top block extends between the inner ends of the two second slide bars. There are inclined surfaces on both sides of the top block, and the top block is in sliding contact with the inner ends of the two second slide bars through the inclined surfaces. A compression spring is arranged between the top block and the lower box body.

[0012] Optionally, it also includes a sliding sleeve, which is fixed on the lower box body, and a rotating slider is arranged in the sliding sleeve, the lower end of the brake key extends into the sliding sleeve and presses on the rotating slider, and the upper end of the top block extends into the sliding sleeve and presses on the lower end of the rotating slider.

[0013] Optionally, connecting plates are respectively provided at the left and right ends of the brake button, and color columns are provided on the connecting plates. Correspondingly, a pair of transparent covers are directly or indirectly provided in the lower box body, and the ends of the transparent covers are exposed from the surface of the upper box body, and the two color columns extend into one of the transparent covers respectively.

[0014] Optionally, a detection point is further provided at one end of the brake button, and correspondingly, a detection installation groove is provided on the lower box body directly below the detection point, and the detection installation groove is used to install a detection switch.

[0015] Optionally, the inner ends of the two second sliding rods are respectively provided with second radial long holes, and the lower box body is provided with two second limiting rods, and the two second limiting rods pass through the second radial long holes respectively.

[0016] The brake mechanism of the baby stroller of the utility model is provided by arranging a brake box between the rear wheels, and two first slide bars are arranged in the brake box. The brake motor drives the two-way side pulleys to push the two first slide bars to insert into the sockets of the synchronous pulley to achieve braking, and the brake motor drives the two-way side pulleys to rotate to release the brake. A foot brake mechanism is also provided in the brake box, and the two second slide bars are pushed to insert into the sockets of the synchronous pulley to achieve braking by stepping on the brake key. The baby stroller of the utility model can brake automatically through the automatic brake mechanism, and can also brake through the foot brake mechanism, thereby ensuring the safety of the baby stroller in power-assisted or automatic driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the brake mechanism of the baby carriage of the utility model;

[0018] Figure 2It is a schematic diagram of the internal structure of the brake mechanism of the baby carriage of the present utility model;

[0019] Figure 3 yes Figure 2 A structural diagram of the automatic brake mechanism in FIG.

[0020] Figure 4 yes Figure 2 Schematic diagram of the installation structure of the foot brake mechanism;

[0021] Figure 5 yes Figure 4 Schematic diagram of the transmission structure of the foot brake mechanism;

[0022] Figure 6 yes Figure 5 Cross-sectional diagram of the brake button and sliding sleeve.

[0023] In the figure: 1. rear wheel; 2. synchronous pulley; 201. socket; 3. brake box; 301. lower box body; 302. upper box body; 303. reinforcing ribs; 304. support frame; 4. first slide bar; 401. first radial long hole; 5. first return spring; 6. brake motor; 7. two-way side pulley; 8. first limit rod; 9. second slide bar; 901. second radial long hole; 10. second return spring; 11. brake button; 12. top block; 13. compression spring; 14. sliding sleeve; 15. rotating slider; 16. color column; 17. transparent cover; 18. detection point; 19. detection installation slot; 20. second limit rod.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0025] Example 1

[0026] refer to Figure 1 , Figure 2 and Figure 3The embodiment of the utility model provides a baby stroller brake mechanism for braking the rear wheels of the baby stroller. The inner sides of the two rear wheels 1 of the baby stroller are respectively connected with synchronous pulleys 2, and the sides of each synchronous pulley 2 are respectively provided with a plurality of jacks 201. The baby stroller brake mechanism includes a brake box 3, which is arranged between the two synchronous pulleys 2. The brake box 3 includes a lower box body 301 and an upper box body 302. An automatic brake mechanism is arranged in the brake box 3. The automatic brake mechanism includes: a pair of first slide bars 4 and a brake motor 6; the two first slide bars 4 are transversely slidably arranged in the lower box body 301, and the outer ends of the two first slide bars 4 are respectively facing one The inner side surface of a synchronous pulley 2, each first slide bar 4 is respectively provided with a first return spring 5; the brake motor 6 is fixedly arranged in the lower box body 301, and the main shaft of the brake motor 6 is connected with a two-way side pulley 7, the two-way side pulley 7 extends between the inner ends of the two first slide bars 4, and the two sides of the two-way side pulley 7 are respectively provided with spiral inclined surfaces, and the two sides of the two-way side pulley are in sliding contact with the inner ends of the two first slide bars 4 through the spiral inclined surfaces; when the brake motor 6 rotates, the two-way side pulley 7 can push the two first slide bars 4 to both sides through the spiral inclined surfaces, so that the outer ends of the two first slide bars 4 are respectively extended into the corresponding sockets 201 on the inner side of the synchronous pulley 1 to achieve braking.

[0027] The inner sides of the two rear wheels 1 of the baby carriage are respectively provided with synchronous pulleys 2, and the two rear wheels 1 can be braked by rotating the braking synchronous pulleys 2; the brake box 3 is arranged between the two synchronous pulleys 2, and a plurality of reinforcing ribs 303 are arranged in the lower box body 301 of the brake box 3, and a support frame 304 is connected to the reinforcing ribs 303, and a brake motor 6 is connected to the support frame 304, and two first sliding rods 4 are slidably connected to the plurality of reinforcing ribs 303, and a first return spring 5 is pressed between the reinforcing ribs 303 and the inner ends of the first sliding rods 4.

[0028] When braking is needed, the brake motor 6 is controlled to drive the two-way side pulley 7 to rotate, and the two first slide bars 4 are pushed out to both sides through the spiral inclined surfaces on both sides of the two-way side pulley 7, so that the outer ends of the two first slide bars 4 extend into the sockets 201 on the sides of the two synchronous pulleys 2, thereby braking the rear wheel 1. At this time, the two first return springs 5 ​​are in a compressed state.

[0029] When the brake needs to be released, the brake motor 6 is controlled to drive the two-way side pulley 7 to rotate in the opposite direction, the inner ends of the two first slide bars 4 lose the support of the spiral inclined surface, the pressure of the two first return springs 5 ​​is released, and the two first slide bars 4 are pushed back inward, and the outer ends of the two first slide bars 4 are withdrawn from the sockets 201 of the two synchronous pulleys 2, thereby releasing the brake of the rear wheel 1.

[0030] Example 2

[0031] refer to Figure 2 and Figure 3On the basis of Example 1, the inner ends of the two first slide bars 4 are further provided with first radial long holes 401 respectively, and two first limiting rods 8 are provided on the lower box body 301, and the two first limiting rods 8 pass through the first radial long holes 401 respectively.

[0032] One end of the first limiting rod 8 is fixed to the first radial long hole 401 in the lower box body 301 , and the other end thereof passes through the first radial long hole 401 transversely, so as to limit the sliding range of the first sliding rod 4 , thereby axially limiting the first sliding rod 4 .

[0033] Example 3

[0034] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 On the basis of Example 2, a foot brake mechanism is further provided in the brake box 3, and the foot brake mechanism includes: a pair of second slide bars 9 and a brake key 11; the two second slide bars 9 are horizontally slidably arranged in the lower box body 301, and the outer ends of the two second slide bars 9 are respectively facing the jack 201 on the inner side of a synchronous pulley 1, and each second slide bar 9 is respectively provided with a second return spring 10; the brake key 11 is vertically slidably arranged in the lower box body 301, and the upper end of the brake key 11 extends out of the upper box body 302, and a top block 12 is arranged below the brake key 11, and the top block 12 extends between the inner ends of the two second slide bars 9, and there are inclined surfaces on both sides of the top block 12, and the inclined surfaces are in sliding contact with the inner ends of the two second slide bars 9, and a compression spring 13 is arranged between the top block 12 and the lower box body 301.

[0035] When the user wants to brake, he steps on the brake button 11 with his foot, and the brake button 11 drives the top block 12 to move downward. At the same time, the compression spring 13 is compressed, and the descending top block 12 pushes the two second slide bars 9 outward through the inclined surfaces on both sides, so that the outer ends of the two second slide bars 9 are inserted into the sockets 201 on the side of the synchronous pulley 1, thereby braking the rear wheel 1.

[0036] Example 4

[0037] refer to Figure 4 , Figure 5 and Figure 6 On the basis of Example 1, it also includes a sliding sleeve 14, which is fixed on the lower box body 301. A rotating slider 15 is arranged in the sliding sleeve 14. The lower end of the brake key 11 extends into the sliding sleeve 14 and presses on the rotating slider 15. The upper end of the top block 12 extends into the sliding sleeve 14 and presses on the lower end of the rotating slider 15.

[0038] The cooperation between the sliding sleeve 14 and the rotating slider 15 is the same as the push-telescopic mechanism of the automatic pen ballpoint pen, and the extension length of the lower end component is controlled by pressing the button on the top; after pressing the brake button 11 once, the lower end of the brake button 11 pushes the top rotating slider 15 and the top block 12 to move downward, and then is lifted up by the compression spring 13. The rotating slider 15 rotates during the lifting process and stays at a lower position, so that the top block 12 pushes the two second slide bars 9 into the socket 201 of the synchronous pulley 2, and the rear wheel 1 is in a braking state; the brake button 11 is pressed again, and the lower end of the brake button 11 pushes the top rotating slider 15 and the top block 12 to move downward, and then is lifted up by the compression spring 13. The rotating slider 15 rotates during the lifting process and stays at a higher position, the inner ends of the two second slide bars 9 lose lateral support, the inner ends of the second slide bars 9 are pushed back by the second return spring 10, and the outer ends of the second slide bars 9 are pulled out of the socket 201 of the synchronous pulley 2, and the rear wheel 1 is out of the braking state.

[0039] Example 5

[0040] refer to Figure 1 , Figure 2 and Figure 5 On the basis of Example 3, the left and right ends of the brake button 11 are respectively provided with connecting plates, and the connecting plates are provided with color columns 16. Correspondingly, a pair of transparent covers 17 are directly or indirectly provided in the lower box body 301, and the ends of the transparent covers 17 are exposed from the surface of the upper box body 302, and the two color columns 16 extend into one transparent cover 17 respectively.

[0041] When the brake button 11 is in the pop-up position, the foot brake mechanism is in the released state, the color column 16 pops up with the brake button 11 and fully extends into the transparent cover 17, so that the user can observe the color column 16 through the transparent cover 17, thereby intuitively understanding the braking state of the stroller.

[0042] Example 6

[0043] refer to Figure 5 and Figure 6 On the basis of Example 3, a detection point 18 is further provided at one end of the brake button 11, and correspondingly, a detection installation groove 19 is provided on the lower box body 301 just below the detection point 18, and a position detection switch is provided in the detection installation groove 19.

[0044] A position detection switch, such as a Hall switch, is installed in the installation groove 19. When the brake button 11 is pressed to the braking state, the detection point 18 also synchronously drops to the position of the detection installation groove 19, thereby being detected by the Hall switch. After the controller obtains the brake signal of the foot brake mechanism through the Hall switch, it can perform relevant control on the stroller, such as stopping driving, etc.

[0045] Example 7

[0046] refer to Figure 2 and Figure 3 On the basis of Example 1, the inner ends of the two second slide bars 9 are further provided with second radial long holes 901 respectively, and two second limiting rods 20 are provided on the lower box body 301, and the two second limiting rods 20 pass through the second radial long holes 901 respectively.

[0047] One end of the second limiting rod 20 is fixed in the lower box body 301 , and the other end thereof passes through the second radial long hole 901 transversely, so as to limit the sliding range of the second sliding rod 9 , thereby axially limiting the second sliding rod 9 .

[0048] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims. The components and structures not described in detail in this embodiment are well-known components and common structures or common means in the industry, and are not described here one by one.

Claims

1. A baby stroller brake mechanism, used for braking the rear wheels of the baby stroller, wherein the inner sides of the two rear wheels (1) of the baby stroller are respectively connected with synchronous pulleys (2), and the side surfaces of each synchronous pulley (2) are respectively provided with a plurality of sockets (201), characterized in that: The baby carriage brake mechanism comprises a brake box (3), the brake box (3) is arranged between the two synchronous pulleys (2), the brake box (3) comprises a lower box body (301) and an upper box body (302), an automatic brake mechanism is arranged in the brake box (3), and the automatic brake mechanism comprises: a pair of first slide bars (4), wherein the two first slide bars (4) are transversely slidably arranged in the lower box body (301), the outer ends of the two first slide bars (4) are respectively opposite to the inner side surface of one of the synchronous pulleys (2), and each of the first slide bars (4) is respectively provided with a first return spring (5); A brake motor (6), wherein the brake motor (6) is fixedly arranged in the lower box body (301), and a bidirectional side pulley (7) is connected to the main shaft of the brake motor (6), and the bidirectional side pulley (7) extends between the inner ends of the two first slide bars (4), and spiral inclined surfaces are respectively arranged on both sides of the bidirectional side pulley (7), and the spiral inclined surfaces are in sliding contact with the inner ends of the two first slide bars (4); When the brake motor (6) rotates, the bidirectional side pulley (7) can push the two first slide bars (4) out to both sides through the spiral inclined surface, so that the outer ends of the two first slide bars (4) respectively extend into the corresponding insertion holes (201) on the inner side of the synchronous pulley (2) to achieve braking.

2. The baby stroller brake mechanism according to claim 1, characterized in that: The inner ends of the two first sliding rods (4) are also respectively provided with first radial long holes (401), and the lower box body (301) is provided with two first limiting rods (8), and the two first limiting rods (8) respectively pass through the first radial long holes (401).

3. The baby stroller brake mechanism according to claim 1, characterized in that: The brake box (3) is also provided with a foot brake mechanism, and the foot brake mechanism comprises: a pair of second slide bars (9), wherein the two second slide bars (9) are transversely slidably arranged in the lower box body (301), the outer ends of the two second slide bars (9) are respectively opposite to the inner side surface of one of the synchronous pulleys (2), and each of the second slide bars (9) is respectively provided with a second return spring (10); A brake key (11), the brake key (11) is vertically slidably arranged in the lower box body (301), the upper end of the brake key (11) extends out of the upper box body (302), a top block (12) is arranged below the brake key (11), the top block (12) extends between the inner ends of the two second slide bars (9), both sides of the top block (12) are provided with inclined surfaces, and the top block (12) is in sliding contact with the inner ends of the two second slide bars (9) through the inclined surfaces, and a compression spring (13) is arranged between the top block (12) and the lower box body (301).

4. The baby stroller brake mechanism according to claim 3, characterized in that: It also includes a sliding sleeve (14), wherein the sliding sleeve (14) is fixed on the lower box body (301), a rotating slider (15) is arranged inside the sliding sleeve (14), the lower end of the brake key (11) extends into the sliding sleeve (14) and presses against the rotating slider (15), and the upper end of the top block (12) extends into the sliding sleeve (14) and presses against the lower end of the rotating slider (15).

5. The baby stroller brake mechanism according to claim 3, characterized in that: The left and right ends of the brake button (11) are respectively provided with connecting plates, and the connecting plates are provided with color columns (16). Correspondingly, a pair of transparent covers (17) are directly or indirectly provided in the lower box body (301), and the ends of the transparent covers (17) are exposed from the surface of the upper box body (302), and the two color columns (16) extend into one of the transparent covers (17) respectively.

6. The baby stroller brake mechanism according to claim 3, characterized in that: A detection point (18) is also provided at one end of the brake key (11), and correspondingly, a detection installation groove (19) is provided on the lower box body (301) directly below the detection point (18), and the detection installation groove (19) is used to install a detection switch.

7. The baby stroller brake mechanism according to claim 3, characterized in that: The inner ends of the two second sliding rods (9) are also respectively provided with second radial long holes (901), and the lower box body (301) is provided with two second limiting rods (20), and the two second limiting rods (20) respectively pass through the second radial long holes (901).

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