Brake system and stroller

Abstract

The utility model relates to the technical field of baby carriages, and discloses a brake system and a baby stroller, the brake system comprises: a brake member movably arranged on a frame, the brake member has a brake position and a brake release position, when the brake member is in the brake position, the brake member extends to wheels to brake the baby stroller; when the brake piece is located at the brake releasing position, the brake piece releases the brake from the wheel; the handle group is movably arranged on the frame, and a pushing part is arranged on the handle group; the triggering piece is movably arranged on the frame, and the triggering piece can drive the brake piece; and when the handle group is released, the handle group can push the triggering piece through the pushing part, so that the brake piece moves to the brake position, and the baby stroller is braked. The automatic brake device has the advantages that when the handle group is released, the pushing part on the handle group can push the trigger piece under the action of gravity, the brake piece is driven to move to the brake position, automatic brake is realized, the operation is simple, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a brake system and a baby carriage. Background Art

[0002] Strollers are a common tool for traveling with babies and children. When adults take their children out in a stroller and need to stop to rest, they usually brake the stroller to prevent it from slipping and ensure the safety of the children.

[0003] Typically, a brake pedal is located near the rear wheels of a stroller, requiring an adult to brake the stroller by foot, which is cumbersome. Furthermore, some strollers feature both push and trailer modes. While push mode makes it easier for an adult to brake the stroller, trailer mode requires an adult to walk from the front of the stroller to the back and apply the brake pedal, making braking inconvenient. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a braking system and a child stroller that can automatically brake the child stroller through a handle assembly.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a brake system configured on a child stroller, wherein the child stroller includes a frame and wheels arranged at the bottom of the frame, and the brake system includes:

[0006] a brake member movably disposed on the stroller frame, and having a braking position and a release position. When the brake member is in the braking position, the brake member extends toward the wheel to brake the stroller; when the brake member is in the release position, the brake member is released from the wheel;

[0007] A handlebar assembly is movably arranged on the frame, and a push portion is provided on the handlebar assembly;

[0008] a triggering member movably disposed on the vehicle frame, and capable of driving the brake member;

[0009] When the handle assembly is released, the handle assembly can push the trigger member through the pushing portion, so that the brake member moves to the brake position to brake the child stroller.

[0010] Furthermore, when the handle assembly is released, the handle assembly causes the pushing portion to push the trigger member under the action of gravity.

[0011] Furthermore, a first spring is provided between the brake member and the vehicle frame, one end of the first spring abuts against the brake member, and the other end of the first spring abuts against the vehicle frame;

[0012] When the brake member is in the release position, the first spring is compressed.

[0013] Furthermore, a second spring is provided between the trigger member and the vehicle frame, one end of the second spring abuts against the trigger member, and the other end of the second spring abuts against the vehicle frame;

[0014] The trigger member and the brake member are connected via a pull wire;

[0015] When the pushing portion does not push the trigger member, the second spring is tensioned between the trigger member and the frame, and the force of the second spring on the trigger member causes the trigger member to tighten the brake member through the pull wire, so that the brake member is in the release position.

[0016] Furthermore, when the handle assembly, under the action of gravity, causes the pushing portion to push the trigger member, the trigger member moves toward the brake member and compresses the second spring; the force exerted by the first spring on the brake member causes the brake member to move to the braking position;

[0017] When the handle assembly is lifted, the push portion is disengaged from the trigger member, and the force exerted by the second spring on the trigger member causes the trigger member to pull the brake member through the pull wire, and the brake member moves to the release position, and the first spring is compressed.

[0018] Furthermore, a first slide groove and a second slide groove are respectively provided on the vehicle frame, and the trigger member and the brake member are respectively arranged in the first slide groove and the second slide groove so as to be telescopically movable.

[0019] Furthermore, the handlebar assembly is rotatably arranged on the frame via a rotating joint, and the push portion protrudes from the outer periphery of the rotating joint;

[0020] By rotating the handle assembly, the pushing portion can be pushed against the trigger member or the pushing portion can be separated from the trigger member.

[0021] Furthermore, the end of the trigger member has an inclined surface, and the pushing portion has an arc surface;

[0022] When the pushing portion pushes the trigger member, the arc surface first pushes against the inclined surface, so that the trigger member is gradually compressed and the brake member gradually moves to the brake position.

[0023] The technical solution adopted by the present invention to solve the technical problem is to provide a child stroller having a pushchair mode and a trailer mode, including:

[0024] A frame, wherein the bottom of the frame is provided with front wheels and rear wheels respectively;

[0025] a handle assembly rotatably disposed on the frame, wherein when the stroller is in the push mode, the handle assembly is located at the rear side of the frame; when the stroller is in the trailer mode, the handle assembly is located at the front side of the frame; and a push portion is provided on the handle assembly;

[0026] a brake member, telescopically disposed on the frame and proximate to the rear wheel, the brake member having a braking position and a release position. When the brake member is in the braking position, the brake member extends toward the rear wheel to brake the stroller; when the brake member is in the release position, the brake member is released from the rear wheel;

[0027] A triggering member is movably provided on the frame and movably contacts the handlebar assembly, wherein the triggering member is connected to the brake member via a cable;

[0028] When the baby stroller is in the trailer mode, the handle assembly is released, and under the action of gravity, the handle assembly pushes the trigger member through the pushing portion, causing the brake member to move to the brake position, thereby braking the baby stroller.

[0029] Furthermore, a first spring is tensioned between the brake member and the frame, and a second spring is tensioned between the trigger member and the frame;

[0030] A brake pedal is provided on the frame near the rear wheel, and the brake pedal can drive the brake member to move to the brake position to brake the stroller.

[0031] Compared with the prior art, the present invention has at least the following beneficial effects:

[0032] In the utility model, when the handle assembly is released, the handle assembly pushes the trigger member through the pushing portion, causing the brake member to move to the braking position to brake the child stroller. By releasing the handle assembly, the child stroller can be automatically braked by the weight of the handle assembly itself without stepping on the brake pedal. The operation is simple and convenient.

[0033] In this utility model, when the stroller is in trailer mode, the adult releases the handle assembly. Under the action of gravity, the handle assembly pushes the trigger member through the push portion, thereby extending the brake member and locking it into the rear wheel, braking the stroller. Because the adult is located near the front wheel of the stroller in trailer mode, this automatic braking method eliminates the need for the adult to move around to the rear wheel to press the brake pedal, making braking more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the brake system of the present invention in the pushcart mode when the brake is not applied;

[0035] Figure 2 This is a schematic diagram of the structure of the brake system after braking in trailer mode;

[0036] Figure 3 for Figure 2 A perspective view of the vehicle (one rear wheel removed);

[0037] Figure 4 A schematic diagram of the connection between the trigger member, the first spring, the second spring, the brake member, and the pull wire;

[0038] Figure 5 Schematic diagram of the structure of the revolute joint.

[0039] In the picture:

[0040] 1. Frame; 11. Front wheel; 12. Rear wheel; 13. First chute; 14. Brake pedal;

[0041] 2. Brake parts;

[0042] 3. Handle assembly; 30. Rotating joint; 300. Pushing portion; 300A. Arc surface;

[0043] 4. Trigger; 40. Inclined surface; 420. Pull wire;

[0044] 5. First spring;

[0045] 6. Second spring. DETAILED DESCRIPTION

[0046] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0051] Example 1:

[0052] like Figures 1-4 As shown, the brake system of this embodiment is applied to a child stroller. The brake system of this embodiment mainly includes: a brake component 2, a handle group 3, a trigger component 4, a first spring 5 and a second spring 6.

[0053] The brake member 2 of this embodiment is preferably, but not limited to, a locking pin, which is telescopically disposed on the vehicle frame 1 and has a braking position and a release position. When the brake member 2 is in the braking position, the brake member 2 extends toward the wheel, braking the stroller. That is, the brake member 2 at this time extends outward toward the wheel side and locks into the locking groove on the wheel, preventing the wheel from rotating, thus entering the braking state. When the brake member 2 is in the release position, the brake member 2 is released from the wheel. That is, the brake member 2 at this time retracts inward from the wheel side and disengages from the locking pin on the wheel, allowing the wheel to resume rotation, thus entering the unlocked state. A second chute (not labeled in the figure) is provided on the vehicle frame 1 for the telescopic movement of the brake member 2. The brake member 2 is telescopically disposed in the second chute.

[0054] The handle assembly 3 is movably mounted on the frame 1 and is provided with a push portion 300. Specifically, the handle assembly 3 is rotatably mounted on the frame 1 via a rotating joint 30. By changing the position of the handle assembly 3 at the front or rear side of the child stroller, the child stroller can be switched between the push mode and the trailer mode. The push portion 300 protrudes from the outer periphery of the rotating joint 30 (e.g., Figure 5 As shown), when the handle assembly 3 is rotated to a suitable position, the protruding push portion 300 on the outer periphery of the rotating joint 30 can push the trigger member 4 to achieve the purpose of braking.

[0055] A trigger member 4 is movably mounted on the vehicle frame 1. Preferably, the trigger member 4 is telescopically mounted on the vehicle frame 1. A first slide 13 is provided on the vehicle frame 1, and the trigger member 4 is telescopically mounted in the first slide 13. The trigger member 4 can drive the brake member 2. Specifically, the trigger member 4 and the brake member 2 are connected by a cable 420. A first spring 5 is disposed between the brake member 2 and the vehicle frame 1. One end of the first spring 5 abuts against the brake member 2, and the other end of the first spring 5 abuts against the vehicle frame 1. When the brake member 2 is in the released position, the first spring 5 is compressed. A second spring 6 is disposed between the trigger member 4 and the vehicle frame 1. One end of the second spring 6 abuts against the trigger member 4, and the other end of the second spring 6 abuts against the vehicle frame 1. When the pushing portion 300 is not pushing the trigger member 4, the second spring 6 is tensioned between the trigger member 4 and the vehicle frame 1. The force exerted by the second spring 6 on the trigger member 4 causes the trigger member 4 to pull the brake member 2 via the cable 420, thereby placing the brake member 2 in the released position. That is, when the brake system is in its natural state, with the push portion 300 not pushing against the trigger 4, the force exerted by the second spring 6 on the trigger 4 is greater than the force exerted by the first spring 5 on the brake member 2. This causes the trigger 4 to pull the brake member 2 tight via the pull wire 420, maintaining the brake member 2 in the released position while the first spring 5 is compressed. If the force of the second spring 6 is removed, the elastic force of the first spring 5 is sufficient to move the brake member 2 to the braking position, locking it to the wheel and achieving braking.

[0056] In actual use, in towing mode, when an adult releases the handle assembly 3, gravity forces the handle assembly 3 to push against the trigger member 4 via the push portion 300. This pushes the trigger member 4 downward, compressing the second spring 6. This compression is insufficient to overcome the elastic force of the first spring 5. The elastic force of the first spring 5 causes the brake member 2 to extend outward toward the wheel, moving the brake member 2 to the braking position and braking the stroller. When the adult lifts the handle assembly 3 upward, the push portion 300 disengages from the trigger member 4 and no longer compresses the trigger member 4. The force of the second spring 6 on the trigger member 4 causes the trigger member 4 to pull the brake member 2 via the pull wire 420, moving the brake member 2 to the released position. Simultaneously, the first spring 5 is compressed. In other words, in this embodiment, rotating the handle assembly 3 can cause the push portion 300 to push against the trigger member 4 or disengage from the trigger member 4, thereby achieving both braking and releasing the brakes.

[0057] Preferably, the trigger member 4 of this embodiment has an inclined surface 40 on its upper end, and the resisting portion 300 has an arcuate surface 300A. When the resisting portion 300 resists the trigger member 4, the arcuate surface 300A first contacts the inclined surface 40, gradually compressing the trigger member 4 and causing the brake member 2 to gradually move to the braking position. The arrangement of the arcuate surface 300A and the inclined surface 40 ensures that the resisting portion 300 pushes against the trigger member 4, driving the brake member 2 to move in a gradual and orderly manner, ensuring smooth braking and preventing any potential for jamming.

[0058] In this embodiment, when the handle group 3 is released, the handle group 3 can push the trigger member 4 through the pushing portion 300, so that the brake member 2 moves to the braking position to brake the child stroller. By releasing the handle group 3, the child stroller can be automatically braked with the help of the gravity of the handle group 3 itself, without the need to step on the brake pedal 14. The operation is simple and easy to use.

[0059] Example 2:

[0060] like Figure 1-Figure 5 As shown, as an optimal implementation manner, the child stroller of this embodiment has a stroller mode and a trailer mode, and the child stroller is equipped with the brake system of the first embodiment.

[0061] Specifically, the child stroller of this embodiment includes:

[0062] The frame 1 has a front wheel 11 and a rear wheel 12 at the bottom. The front wheel 11 is a universal wheel, and the rear wheel 12 is a wheel that can roll forward and backward.

[0063] The handle assembly 3 is rotatably mounted on the frame 1. When the stroller is in push mode, the handle assembly 3 is located at the rear of the frame 1. When the stroller is in trailer mode, the handle assembly 3 is located at the front of the frame 1. The handle assembly 3 is provided with a push portion 300. Specifically, the push portion 300 is provided on the outer periphery of the rotation joint 30 of the handle assembly 3.

[0064] The brake member 2 is telescopically mounted on the frame 1 and positioned adjacent to the rear wheel 12. The brake member 2 has a braking position and a release position. When the brake member 2 is in the braking position, the brake member 2 extends toward the rear wheel 12 and locks into the locking pin of the rear wheel 12, thereby braking the stroller. When the brake member 2 is in the release position, the brake member 2 is withdrawn from the locking slot of the rear wheel 12, releasing the brake member 2 from the rear wheel 12.

[0065] The trigger member 4 is movably provided on the frame 1 and movably contacts the handlebar assembly 3. The trigger member 4 is connected to the brake member 2 via a pull wire 420. In addition, a first spring 5 is tensioned between the brake member 2 and the frame 1, and a second spring 6 is tensioned between the trigger member 4 and the frame 1. The stress states of the first spring 5 and the second spring 6 in various scenarios are described in detail in the first embodiment and will not be repeated here.

[0066] When the stroller is in trailer mode, the handle assembly 3 is released. Under the action of gravity, the handle assembly 3 pushes the trigger member 4 via the pushing portion 300, causing the brake member 2 to move to the brake position, thereby braking the stroller. Of course, in trailer mode, an adult can still go around to the back of the stroller and brake by pressing the brake pedal 14.

[0067] Specifically, a brake pedal 14 is provided on the frame 1 of this embodiment near the rear wheel 12. The brake pedal 14 can drive the brake member 2 to move to the braking position to brake the stroller. That is, in the stroller mode, an adult can brake by stepping on the brake pedal 14 at the rear side of the stroller.

[0068] In this embodiment, when the stroller is in trailer mode, the adult releases the handle assembly 3. Under the action of gravity, the handle assembly 3 pushes the trigger member 4 via the push portion 300, thereby extending the brake member 2 and locking it into the rear wheel 12, thereby braking the stroller. Because the adult is positioned near the front wheel 11 in trailer mode, this automatic braking mechanism eliminates the need for the adult to move around to the rear wheel 12 to depress the brake pedal 14, making braking more convenient.

Claims

1. A brake system, configured on a child stroller, wherein: The child stroller comprises a frame and wheels arranged at the bottom of the frame, and is characterized in that the braking system comprises: a brake member movably disposed on the stroller frame, and having a braking position and a release position. When the brake member is in the braking position, the brake member extends toward the wheel to brake the stroller; when the brake member is in the release position, the brake member is released from the wheel; A handlebar assembly is movably arranged on the frame, and a push portion is provided on the handlebar assembly; a triggering member movably disposed on the vehicle frame, and capable of driving the brake member; When the handle assembly is released, the handle assembly can push the trigger member through the pushing portion, so that the brake member moves to the brake position to brake the child stroller.

2. The brake system according to claim 1, characterized in that: When the handle assembly is released, the handle assembly causes the pushing portion to push the trigger member under the action of gravity.

3. The brake system according to claim 1 or 2, characterized in that: A first spring is provided between the brake member and the frame, one end of the first spring abuts against the brake member, and the other end of the first spring abuts against the frame; When the brake member is in the release position, the first spring is compressed.

4. The brake system according to claim 3, characterized in that: A second spring is provided between the trigger member and the vehicle frame, one end of the second spring abuts against the trigger member, and the other end of the second spring abuts against the vehicle frame; The trigger member and the brake member are connected via a pull wire; When the pushing portion does not push the trigger member, the second spring is tensioned between the trigger member and the frame, and the force of the second spring on the trigger member causes the trigger member to tighten the brake member through the pull wire, so that the brake member is in the release position.

5. The brake system according to claim 4, characterized in that: When the handle assembly, under the action of gravity, causes the pushing portion to push the trigger member, the trigger member moves toward the brake member and compresses the second spring; the first spring exerts a force on the brake member, causing the brake member to move to the braking position; When the handle assembly is lifted, the push portion is disengaged from the trigger member, and the force exerted by the second spring on the trigger member causes the trigger member to pull the brake member through the pull wire, and the brake member moves to the release position, and the first spring is compressed.

6. The brake system according to claim 1, characterized in that: The frame is provided with a first slide groove and a second slide groove, respectively. The trigger member and the brake member are respectively arranged in the first slide groove and the second slide groove so as to be telescopically movable.

7. The brake system according to claim 1, wherein: The handlebar assembly is rotatably arranged on the frame via a rotating joint, and the push portion protrudes from the outer periphery of the rotating joint; By rotating the handle assembly, the pushing portion can be pushed against the trigger member or the pushing portion can be separated from the trigger member.

8. The brake system according to claim 1 or 7, characterized in that: The end of the trigger member has an inclined surface, and the pushing portion has an arc surface; When the pushing portion pushes the trigger member, the arc surface first pushes against the inclined surface, so that the trigger member is gradually compressed and the brake member gradually moves to the brake position.

9. A child stroller having a stroller mode and a trailer mode, characterized in that: include: A frame, wherein the bottom of the frame is provided with front wheels and rear wheels respectively; a handle assembly rotatably disposed on the frame, wherein when the stroller is in the push mode, the handle assembly is located at the rear side of the frame; when the stroller is in the trailer mode, the handle assembly is located at the front side of the frame; and a push portion is provided on the handle assembly; a brake member, telescopically disposed on the frame and proximate to the rear wheel, the brake member having a braking position and a release position. When the brake member is in the braking position, the brake member extends toward the rear wheel to brake the stroller; when the brake member is in the release position, the brake member is released from the rear wheel; A triggering member is movably provided on the frame and movably contacts the handlebar assembly, wherein the triggering member is connected to the brake member via a cable; When the baby stroller is in the trailer mode, the handle assembly is released, and under the action of gravity, the handle assembly pushes the trigger member through the pushing portion, causing the brake member to move to the brake position, thereby braking the baby stroller.

10. The stroller according to claim 9, characterized in that: A first spring is tensioned between the brake member and the frame, and a second spring is tensioned between the trigger member and the frame; A brake pedal is provided on the frame near the rear wheel, and the brake pedal can drive the brake member to move to the brake position to brake the stroller.

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