A handbrake structure for a walking aid

Abstract

This utility model discloses a handbrake structure for a walking aid, relating to the field of walking aid technology. It includes a support arm, a brake lever, and a transmission body. A first support arm has a first limiting part, and a second support arm has a second limiting part. One end of the brake lever is located between the first and second support arms. The brake lever has a first abutment part facing the first support arm and a second abutment part facing the second support arm. The first abutment part abuts against the inner side of the first limiting part, and the second abutment part abuts against the inner side of the second limiting part. The transmission body is connected to the brake lever and is used to drive the brake components for braking. When the brake lever is raised, it causes the first abutment part to swing inward around the abutment point of the second abutment part. When the brake lever is pressed inward, it causes the second abutment part to swing inward around the abutment point of the first abutment part. A blocking member is used to prevent the second abutment part from swinging back, thereby stopping the vehicle. This utility model has a simple structure and better reliability.

Description

Technical Field

[0001] This invention relates to the field of mobility aid technology, and specifically to a handbrake structure for a mobility aid. Background Technology

[0002] Walking aids, as an important mobility assistance tool, are widely used in the daily activities of the elderly, rehabilitation patients, or people with mobility impairments. Their main function is to provide users with stable support and balance while walking. In the design of walking aids, the braking system is a core safety component, directly related to user safety and operating experience.

[0003] The current handbrake structure of walking aids involves mounting the brake lever on the frame of the walking aid via a housing. One end of the brake lever is hinged to the housing, while the other end is a movable end located next to the handlebar. The brake lever is connected to the transmission body (cylinder, cable, etc.). The brake is applied by lifting the lever upwards towards the handlebar and by pressing it downwards away from the handlebar. However, the current handbrake structure of walking aids requires coordination among multiple components, resulting in complex connections and poor reliability. Utility Model Content

[0004] The purpose of this utility model is to provide a handbrake structure for a walking aid that has a simple connection and better reliability.

[0005] To achieve the above objectives, the solution of this utility model is as follows:

[0006] A handbrake structure for a walking aid includes a support arm, a brake handle, a transmission body, and a blocking component;

[0007] The outrigger includes a first outrigger and a second outrigger. The first outrigger and the second outrigger are fixed and spaced apart. A first limiting part is provided on the first outrigger and a second limiting part is provided on the second outrigger. The first limiting part and the second limiting part are arranged facing each other.

[0008] One end of the brake lever is located between the first arm and the second arm. This end of the brake lever is provided with a first abutment facing the first arm and a second abutment facing the second arm. The first abutment abuts against the inside of the first limiting part and the second abutment abuts against the inside of the second limiting part. The other end of the brake lever extends from between the first limiting part and the second limiting part to the first arm and the second arm.

[0009] The transmission body is connected to one end of the brake handle located between the first and second arms. The transmission body is used to drive the brake components to brake. When the brake handle is swung towards the first arm, it can drive the first abutment part to swing inward around the abutment point of the second abutment part, so that the transmission body can drive the brake components to brake. When the brake handle is swung towards the second arm, it can drive the second abutment part to swing inward around the abutment point of the first abutment part, so that the transmission body can drive the brake components to brake.

[0010] The blocking member is provided on the second support arm. The blocking member is used to prevent the second abutment part from swinging back to the second limit part, so that the braking component continues to maintain the braking state, thereby performing parking stop.

[0011] Furthermore, the transmission body is a hydraulic cylinder, with the first and second arms fixed on both sides of the hydraulic cylinder. The hydraulic cylinder is located inside the first and second limiting parts and is spaced apart from them. A piston rod is inserted into the hydraulic cylinder, and the piston rod can move in the direction of insertion or withdrawal from the hydraulic cylinder. The end of the piston rod away from the hydraulic cylinder is pivotally connected to the middle of the end of the brake handle located between the first and second arms. The space between the piston insertion end and the bottom of the hydraulic cylinder is filled with oil and connected to the brake component through an oil circuit to form a hydraulic brake. If either the first or second abutment part swings inward, the end of the brake handle located between the first and second arms can press the piston to move in the direction of insertion into the hydraulic cylinder, thereby pressing the oil in the hydraulic cylinder into the brake component to perform braking.

[0012] Furthermore, a first spring is provided between the end of the piston rod inserted into the oil cylinder and the bottom of the oil cylinder. The first spring is used to elastically push the piston rod to move in the direction of pulling out of the oil cylinder, so as to push the first abutment part to swing back towards the first limit part and the second abutment part to swing back towards the second limit part.

[0013] Furthermore, the first and second limiting parts are hook-shaped, the first abutting part is hook-shaped to fit the first limiting part, and the second abutting part is hook-shaped to fit the second limiting part. When the first abutting part abuts against the inner side of the first limiting part and the second abutting part abuts against the inner side of the second limiting part, the first abutting part and the first limiting part are engaged with each other, and the second abutting part and the second limiting part are engaged with each other. When the first abutting part swings inward, the second abutting part hooks onto the second limiting part. When the second abutting part swings inward, the first abutting part hooks onto the first limiting part.

[0014] Furthermore, the distance between the first arm and the second arm gradually increases from the end away from the first limiting part and the second limiting part to the end closer to the first limiting part and the second limiting part. At the same time, the first abutting part abuts against the inner side of the first limiting part and the second abutting part abuts against the inner side of the second limiting part. The first abutting part abuts against the side of the first arm facing the second arm, and the second abutting part abuts against the side of the second arm facing the first arm, so as to limit the movement of the first abutting part and the second abutting part towards the inner side of the first limiting part and the second limiting part at the same time.

[0015] Furthermore, the opposing sides of the first and second arms are arc-shaped. When the first abutment rotates inward, the first abutment abuts against the side of the first arm facing the second arm and moves along the side of the first arm facing the second arm. When the second abutment rotates inward, the second abutment abuts against the side of the second arm facing the first arm and moves along the side of the second arm facing the first arm.

[0016] Furthermore, the blocking component includes a tube, a spherical stop, and a second spring. The second arm has a channel, and the tube is detachably installed in the channel. The tube has a receiving cavity with an opening. When the tube is installed in the channel, the opening of the receiving cavity is flush with the side wall of the second arm facing the first arm. The spherical stop is installed in the receiving cavity, and the opening of the receiving cavity allows only a portion of the spherical surface of the spherical stop to protrude from the receiving cavity, thus protruding from the side wall of the second arm facing the first arm. The second spring is installed between the spherical stop and the bottom of the receiving cavity to elastically push the spherical stop towards the opening.

[0017] Furthermore, the handbrake structure is located at the handlebar of the mobility scooter. One end of the brake lever extends from between the first and second arms and is located beside the handlebar, spaced apart from it. When the brake lever swings away from the handlebar, it rotates towards the second arm, causing the second abutment to rotate inward and away from the second limiter, thereby driving the transmission component to drive the brake component to brake. The blocking part can prevent the second abutment from swinging back towards the second limiter, thereby parking the vehicle. When the brake lever swings towards the handlebar, it rotates towards the first arm, causing the first abutment to rotate inward and away from the first limiter, thereby driving the transmission component to drive the brake component to brake.

[0018] Furthermore, it also includes a housing with a mounting cavity inside. The support arm and transmission body are fixed in the mounting cavity. One end of the brake lever is located between the first and second support arms in the mounting cavity, and the other end extends out of the mounting cavity. The grip is set on the housing.

[0019] Furthermore, the brake lever is enlarged at one end between the first and second arms to form an enlarged portion. The first and second abutting portions are located on both sides of the enlarged portion. The end of the enlarged portion near the first and second limiting portions extends from between the first and second limiting portions and bends towards the second arm to form a constricted section. A ring-shaped handpiece for a person to grip is formed at the extended end of the constricted section.

[0020] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0021] The handbrake structure of this utility model involves swinging the brake handle towards the first support arm, thereby causing the first abutment part to rotate inward around the abutment point of the second abutment part, which in turn drives the transmission body to drive the brake component to apply the brakes. Swinging the brake handle towards the second support arm causes the second abutment part to rotate inward around the abutment point of the first abutment part, which in turn drives the transmission body to drive the brake component to apply the brakes. A blocking member prevents the second abutment part from swinging back towards the second limit part, thus maintaining the brake component in a braking state for parking. This handbrake structure eliminates the need for complex multi-component coordination; simply rotating the brake handle around different axes drives the transmission body to drive the brake component to apply the brakes. The blocking member then maintains the braking state, thus parking the vehicle. The structure is relatively simple, the connection is straightforward, and the reliability is superior. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the handbrake structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention, showing the vehicle not braking or stopping.

[0024] Figure 3 This is a cross-sectional view of the braking state of a preferred embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the preferred embodiment of the present invention in the parked and stopped state;

[0026] Figure 5 This is a schematic diagram of the external structure of the cylinder and support arm according to a preferred embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the new type of brake handle;

[0028] Figure 7 This is a cross-sectional view of the blocking component of this utility model.

[0029] Label Explanation:

[0030] 10. Support arm; 11. First support arm; 111. First limiting part; 12. Second support arm; 121. Second limiting part; 122. Channel; 20. Brake handle; 21. First abutment part; 22. Second abutment part; 23. Expanding part; 24. Neck section; 25. Hand part; 30. Transmission body; 31. Hydraulic cylinder; 32. Piston rod; 321. Rod part; 322. Piston; 33. First spring; 40. Blocking element; 41. Pipe fitting; 42. Receiving cavity; 43. Second spring; 44. Spherical stop; 50. Housing; 51. Mounting cavity; 52. Grip. Detailed Implementation

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 7 As shown, this embodiment provides a handbrake structure for a mobility aid, including a support arm, a brake lever 20, a transmission body 30, and a blocking member 40. The support arm 10 includes a first support arm 11 and a second support arm 12, which are fixed and spaced apart. A first limiting part 111 is provided on the first support arm 11, and a second limiting part 121 is provided on the second support arm 12. The first limiting part 111 and the second limiting part 121 are arranged facing each other. One end of the brake lever 20 is located between the first support arm 11 and the second support arm 12. This end of the brake lever 20 has a first abutment part 21 facing the first support arm 11 and a second abutment part 22 facing the second support arm 12. The first abutment part 21 abuts against the inside of the first limiting part 111, and the second abutment part 22 abuts against the inside of the second limiting part 121. The other end of the brake lever 20 extends from the first limiting part 111. A first arm 11 and a second arm 12 extend between the positioning part 111 and the second limiting part 121. A transmission body 30 is connected to one end of the brake handle 20 located between the first arm 11 and the second arm 12. The transmission body 30 is used to drive the brake component to brake. When the brake handle 20 swings toward the first arm 11, it can drive the first abutment part 21 to swing inward around the abutment point of the second abutment part 22, so that the transmission body 30 can drive the brake component to brake. When the brake handle 20 swings toward the second arm 12, it can drive the second abutment part 22 to swing inward around the abutment point of the first abutment part 21, so that the transmission body 30 can drive the brake component to brake. A blocking member 40 is provided on the second arm 12. The blocking member 40 is used to prevent the second abutment part 22 from swinging back toward the second limiting part 121, so that the brake component can maintain the braking state, thereby stopping the vehicle.

[0033] Specifically, the handbrake structure is located at the handlebar 52 of the mobility scooter. The end of the brake lever 20 extending between the first arm 11 and the second arm 12 is located beside the handlebar 52 and spaced apart from it. When the brake lever 20 swings away from the handlebar 52, it rotates towards the second arm 12, causing the second abutment 22 to rotate inward and away from the second limit part 121, thereby driving the transmission component to drive the brake component to brake. The blocking part can prevent the second abutment 22 from swinging back towards the second limit part 121, thereby parking the vehicle. When the brake lever 20 swings towards the handlebar 52, it rotates towards the first arm 11, causing the first abutment 21 to rotate inward and away from the first limit part 111, thereby driving the transmission component to drive the brake component to brake.

[0034] Furthermore, it also includes a housing 50, which has a mounting cavity 51. The support arm 10 and the transmission body 30 are fixed in the mounting cavity 51. One end of the brake handle 20 is located between the first support arm 11 and the second support arm 12 in the mounting cavity 51, and the other end extends out of the mounting cavity 51. The grip 52 is provided on the housing 50.

[0035] Preferably, the first limiting portion 111 and the second limiting portion 121 are hook-shaped, the first abutting portion 21 is hook-shaped and fits into the first limiting portion 111, and the second abutting portion 22 is hook-shaped and fits into the second limiting portion 121. When the first abutting portion 21 abuts against the inner side of the first limiting portion 111 and the second abutting portion 22 abuts against the inner side of the second limiting portion 121, the first abutting portion 21 and the first limiting portion 111 are engaged with each other, and the second abutting portion 22 and the second limiting portion 121 are engaged with each other. The parts 121 are interlocked. When the first abutting part 21 swings inward, the second abutting part 22 hooks onto the second limiting part 121. When the second abutting part 22 swings inward, the first abutting part 21 hooks onto the first limiting part 111. This prevents the second abutting part 22 from slipping off the second limiting part 121 when the first abutting part 21 swings inward, and also prevents the first abutting part 21 and the first limiting part 111 from slipping off when the second abutting part 22 swings inward.

[0036] Furthermore, the distance between the first support arm 11 and the second support arm 12 gradually increases from the end away from the first limiting part 111 and the second limiting part 121 towards the end closer to the first limiting part 111 and the second limiting part 121. At the same time, the first abutting part 21 abuts against the inner side of the first limiting part 111 and the second abutting part 22 abuts against the inner side of the second limiting part 121. The first abutting part 21 abuts against the side of the first support arm 11 facing the second support arm 12, and the second abutting part 22 abuts against the side of the second support arm 12 facing the first support arm 11, so as to limit the movement of the first abutting part 21 and the second abutting part 22 towards the inner side of the first limiting part 111 and the second limiting part 121 at the same time, so as to avoid accidental braking.

[0037] Specifically, the opposing sides of the first arm 11 and the second arm 12 are arc-shaped. When the first abutment part 21 swings inward, the first abutment part 21 abuts against the side of the first arm 11 facing the second arm 12 and moves along the side of the first arm 11 facing the second arm 12. When the second abutment part 22 swings inward, the second abutment part 22 abuts against the side of the second arm 12 facing the first arm 11 and moves along the side of the second arm 12 facing the first arm 11.

[0038] Furthermore, the blocking member 40 includes a tube 41, a spherical stop 44, and a second spring 43. The second support arm 12 is provided with a channel 122. The tube 41 is detachably disposed in the channel 122. The tube 41 is provided with a receiving cavity 42. The receiving cavity 42 has an opening on the tube 41. When the tube 41 is installed in the channel 122, the opening of the receiving cavity 42 is flush with the side wall of the second support arm 12 facing the first support arm 11. The spherical stop 44 is disposed in the receiving cavity 42. The opening of the receiving cavity 42 allows only a portion of the spherical surface of the spherical stop 44 to protrude from the receiving cavity 42, thus protruding from the side wall of the second support arm 12 facing the first support arm 11. The second spring 43 is disposed between the spherical stop 44 and the bottom of the receiving cavity 42 to elastically push the spherical stop 44 toward the opening. Specifically, with the first abutment part 21 abutting against the inside of the first limiting part 111 and the second abutment part 22 abutting against the inside of the second limiting part 121, under the action of external force, the brake handle 20 is swung towards the second support arm 12, causing the second abutment part 22 to swing inward. The second abutment part 22 can press the spherical stop 44 into the receiving cavity 42. After the second abutment part 22 passes the blocking member 40, part of the spherical surface of the spherical stop 44 protrudes out of the opening again, protruding from the side wall of the second support arm 12 facing the first support arm 11. After the external force disappears, one end of the second abutment part 22 facing the second support arm 12 abuts against the spherical stop 44, preventing the second abutment part 22 from swinging back towards the second limiting part 121. This allows the vehicle to be parked. At this time, an external force is applied to the brake lever 20, and the brake lever 20 is swung towards the first support arm 11. This will cause the second abutment part 22 to swing back towards the second limiting part 121. The spherical stop 44 will be pressed into the receiving cavity 42 by the second abutment part 22, allowing the second abutment part 22 to pass through, thereby unlocking the parking. The second abutment part 22 then abuts against the inner side of the second limiting part 121 again. Specifically, the inner wall of the channel 122 is threaded, and the outer wall of the pipe 41 is also threaded. The pipe 41 and the channel 122 are connected by threads, making them detachable for easy replacement of the blocking part 40. Furthermore, the separate design of the blocking part 40 and the second support arm 12 simplifies the manufacturing process.

[0039] Specifically, the brake lever 20 is enlarged at one end between the first support arm 11 and the second support arm 12 to form an enlarged portion 23. The first abutment portion 21 and the second abutment portion 22 are located on both sides of the enlarged portion 23. The end of the enlarged portion 23 near the first limiting portion 111 and the second limiting portion 121 extends out from between the first limiting portion 111 and the second limiting portion 121 and bends to the side of the second support arm 12 to form a constricted section 24. At the extended end of the constricted section, a ring-shaped hand part 25 for a person to hold is formed.

[0040] In a preferred embodiment, the transmission body 30 is a hydraulic cylinder 31. A first support arm 11 and a second support arm 12 are fixedly mounted on both sides of the hydraulic cylinder 31. The hydraulic cylinder 31 is located inside the first limiting part 111 and the second limiting part 121, and is spaced apart from them. A piston rod 32 is inserted into the hydraulic cylinder 31. The piston rod 32 can move in the direction of insertion into or removal from the hydraulic cylinder 31. The end of the piston rod 32 facing away from the hydraulic cylinder 31 is pivotally connected to the brake handle 20 located on the first support arm. The middle part of one end between the first arm 11 and the second arm 12, the piston insertion end of the cylinder 31 and the bottom of the cylinder 31 are filled with oil, and connected to the brake component through the oil circuit to form a hydraulic brake. When either the first abutment part 21 or the second abutment part 22 swings inward, the brake handle 20 located between the first arm 11 and the second arm 12 can press the piston rod 32 to move in the direction of insertion into the cylinder 31, thereby pressing the oil in the cylinder 31 into the brake component to perform braking.

[0041] Furthermore, a first spring 33 is provided between the end of the piston rod 32 inserted into the oil cylinder 31 and the bottom of the oil cylinder 31. The first spring 33 is used to elastically push the piston rod 32 to move in the direction of pulling out the oil cylinder 31, so as to push the first abutment 21 to swing back towards the first limit part 111 and the second abutment 22 to swing back towards the second limit part 121.

[0042] Specifically, the piston rod 32 includes a rod portion 321 and a piston 322. The piston 322 is completely sealed inside the cylinder 31 and can move in the direction of insertion or withdrawal from the cylinder 31. One end of the rod portion 321 is inserted into the cylinder 31 and is hinged to the end of the piston 322 away from the bottom of the cylinder 31 by a ball joint structure. The other end of the rod portion 321 is pivotally connected to the middle of the end of the brake handle 20 between the first support arm 11 and the second support arm 12.

[0043] In another implementation, unlike the preferred embodiment described above, the transmission body 30 is a cable, with one end of the cable fixed to one end of the brake handle 20 between the first support arm 11 and the second support arm 12. When either the first abutment part 21 or the second abutment part 22 swings inward, the cable is pulled, thereby driving the brake component to brake. Alternatively, the blocking member 40 can be provided on the second support arm 12 to prevent the second abutment part 22 from swinging back towards the second limit part 121, thus stopping the vehicle.

[0044] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0045] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A handbrake structure for a walking aid, characterized in that: Includes the control arm, brake lever, transmission body, and blocking components; The outrigger includes a first outrigger and a second outrigger. The first outrigger and the second outrigger are fixed and spaced apart. A first limiting part is provided on the first outrigger and a second limiting part is provided on the second outrigger. The first limiting part and the second limiting part are arranged facing each other. One end of the brake lever is located between the first arm and the second arm. This end of the brake lever is provided with a first abutment facing the first arm and a second abutment facing the second arm. The first abutment abuts against the inside of the first limiting part and the second abutment abuts against the inside of the second limiting part. The other end of the brake lever extends from between the first limiting part and the second limiting part to the first arm and the second arm. The transmission body is connected to one end of the brake handle located between the first and second arms. The transmission body is used to drive the brake components to brake. When the brake handle is swung towards the first arm, it can drive the first abutment part to swing inward around the abutment point of the second abutment part, so that the transmission body can drive the brake components to brake. When the brake handle is swung towards the second arm, it can drive the second abutment part to swing inward around the abutment point of the first abutment part, so that the transmission body can drive the brake components to brake. The blocking member is provided on the second support arm. The blocking member is used to prevent the second abutment part from swinging back to the second limit part, so that the braking component continues to maintain the braking state, thereby performing parking stop.

2. The handbrake structure for a walking aid as described in claim 1, characterized in that: The transmission body is a hydraulic cylinder. The first and second arms are fixed on both sides of the hydraulic cylinder. The hydraulic cylinder is located inside the first and second limiting parts and is spaced apart from them. A piston rod is inserted into the hydraulic cylinder. The piston rod can move in the direction of insertion or withdrawal from the hydraulic cylinder. The end of the piston rod away from the hydraulic cylinder is pivotally connected to the middle of the end of the brake handle located between the first and second arms. The end of the piston inserted into the hydraulic cylinder and the bottom of the cylinder are filled with oil and connected to the brake component through an oil circuit to form a hydraulic brake. If either the first or second abutment part swings inward, the end of the brake handle located between the first and second arms can press the piston to move in the direction of insertion into the hydraulic cylinder, thereby pressing the oil in the hydraulic cylinder into the brake component to perform braking.

3. The handbrake structure for a walking aid as described in claim 2, characterized in that: A first spring is provided between the end of the piston rod inserted into the oil cylinder and the bottom of the oil cylinder. The first spring is used to elastically push the piston rod to move in the direction of pulling out of the oil cylinder, so as to push the first abutment part to swing back towards the first limit part and the second abutment part to swing back towards the second limit part.

4. The handbrake structure for a walking aid as described in claim 1, characterized in that: The first and second limiting parts are hook-shaped, and the first abutting part is hook-shaped to fit the first limiting part. The second abutting part and the second limiting part are hook-shaped to fit each other. When the first abutting part abuts against the inside of the first limiting part and the second abutting part abuts against the inside of the second limiting part, the first abutting part and the first limiting part are engaged with each other. When the first abutting part swings inward, the second abutting part hooks onto the second limiting part. When the second abutting part swings inward, the first abutting part hooks onto the first limiting part.

5. The handbrake structure for a walking aid as described in claim 1, characterized in that: The distance between the first arm and the second arm gradually increases from the end away from the first and second limiting portions toward the end closer to the first and second limiting portions. At the same time, the first abutment abuts against the inside of the first limiting portion and the second abutment abuts against the inside of the second limiting portion. The first abutment abuts against the side of the first arm facing the second arm, and the second abutment abuts against the side of the second arm facing the first arm, so as to limit the movement of the first abutment and the second abutment towards the inside of the first and second limiting portions at the same time.

6. The handbrake structure of a walking aid as described in claim 5, characterized in that: The opposing sides of the first and second arms are arc-shaped. When the first abutment rotates inward, the first abutment abuts against the side of the first arm facing the second arm and moves along the side of the first arm facing the second arm. When the second abutment rotates inward, the second abutment abuts against the side of the second arm facing the first arm and moves along the side of the second arm facing the first arm.

7. The handbrake structure for a walking aid as described in claim 1, characterized in that: The blocking component includes a tube, a spherical stop, and a second spring. The second arm has a channel, and the tube is detachably installed in the channel. The tube has a receiving cavity with an opening. When the tube is installed in the channel, the opening of the receiving cavity is flush with the side wall of the second arm facing the first arm. The spherical stop is installed in the receiving cavity, and the opening of the receiving cavity allows only a portion of the spherical surface of the spherical stop to protrude from the receiving cavity, thus protruding from the side wall of the second arm facing the first arm. The second spring is located between the spherical stop and the bottom of the receiving cavity to elastically push the spherical stop towards the opening.

8. The handbrake structure of a walking aid as described in claim 1, characterized in that: The handbrake mechanism is located at the handlebar of the mobility scooter. One end of the brake lever extends from between the first and second arms and is located beside the handlebar, spaced apart from it. When the brake lever swings away from the handlebar, it rotates towards the second arm, causing the second abutment to rotate inward and away from the second limiter, thereby driving the transmission component to drive the brake component to brake. The blocking part can prevent the second abutment from swinging back towards the second limiter, thus parking the vehicle. When the brake lever swings towards the handlebar, it rotates towards the first arm, causing the first abutment to rotate inward and away from the first limiter, thereby driving the transmission component to drive the brake component to brake.

9. The handbrake structure for a walking aid as described in claim 8, characterized in that: It also includes a housing with a mounting cavity inside. The support arm and transmission body are fixed in the mounting cavity. One end of the brake lever is located between the first and second support arms in the mounting cavity, and the other end extends out of the mounting cavity. The grip is set on the housing.

10. The handbrake structure of a walking aid as described in claim 1, characterized in that: The brake lever is located between the first and second arms. One end of the lever is enlarged to form an enlarged portion. The first and second abutting portions are located on both sides of the enlarged portion. The end of the enlarged portion near the first and second limiting portions extends from between the first and second limiting portions and bends to the side of the second arm to form a constricted section. At the extended end of the constricted section, a ring-shaped hand part is formed for a person to hold in.

Images