A rear wheel brake concealed structure and a walking cart

Abstract

The utility model relates to the field of walking aid vehicle, disclose a rear wheel brake hidden structure and walking cart, rear wheel brake hidden structure is used for installing in walking cart, including brake fixed part, brake movable part and brake line, brake fixed part is fixed in the main body frame of walking cart, brake movable part with brake fixed part sliding connection, brake line is hidden in the main body frame of walking cart, and one end is connected with brake movable part, the other end is used for connecting the brake operating mechanism of walking cart, brake movable part bottom is connected with brake piece, brake piece is towards the rear wheel of walking cart, brake piece is used for locking rear wheel when brake movable part slides down. The application realizes brake line hiding in the main body frame of walking cart through the design of rear wheel brake line hidden mechanism, avoids brake line exposed and easily damaged, the problem of winding, provides great convenience for the user.

Description

Technical Field

[0001] This application relates to the field of walking aids, and in particular to a rear wheel brake concealed structure and a walking aid pushcart. Background Technology

[0002] With the progress of social civilization, people are paying more and more attention to the convenience and safety of travel for people with mobility impairments. As an important tool to assist people with mobility impairments in moving around, the design and manufacturing technology of walking carts are also constantly being innovated. Walking carts provide necessary support and mobility assistance for people with mobility impairments, improving their quality of life.

[0003] In previous walker designs, the conventional approach to achieve braking function was to connect the brake cable to the braking device. However, the design of existing walkers with exposed brake cables has caused many inconveniences for people with mobility impairments. For example, when users push the walker, the exposed brake cable is prone to rubbing against surrounding objects, which hinders the movement of the walker and increases the difficulty and physical exertion of the user. Alternatively, the exposed brake cable may cause accidental injury to the user, such as tripping the user or scratching the user's clothing.

[0004] Therefore, it is necessary to develop a braking structure for use in walking aids to solve the technical problem of the exposed brake lines in existing walking aids causing inconvenience in use. Utility Model Content

[0005] To address the technical problem of exposed brake cables in existing walking aids causing inconvenience, this application provides a rear wheel brake concealment structure and a walking aid.

[0006] A rear wheel brake concealed structure is disclosed for installation within a walking aid trolley. The structure includes a brake fixing component, a brake moving component, and a brake cable. The brake fixing component is fixed within the main frame of the walking aid trolley. The brake moving component is slidably connected to the brake fixing component. The brake cable is concealed within the main frame of the walking aid trolley, with one end connected to the brake moving component and the other end connected to the brake operating mechanism of the walking aid trolley. A brake element is connected to the bottom of the brake moving component, facing the rear wheel of the walking aid trolley. The brake element locks the rear wheel when the brake moving component slides downwards.

[0007] By adopting the above technical solution, this application fixes the brake fixing component within the main frame of the walking trolley, ensuring the stable installation of the brake structure within the trolley. The brake moving component is slidably connected to the brake fixing component, allowing the brake moving component to slide smoothly along the brake fixing component. One end of the brake cable, concealed within the main frame, is connected to the brake moving component, and the other end is connected to the brake operating mechanism of the walking trolley. When the brake operating mechanism is operated, the brake cable pulls the brake moving component, and the brake component connected to the bottom of the brake moving component faces the rear wheel of the walking trolley. When the brake moving component slides downward, it locks the rear wheel, effectively braking the rear wheel of the walking trolley and ensuring safety during trolley use.

[0008] In addition, the brake cable is concealed within the main frame of the walker through the rear wheel brake concealment structure, avoiding the situation where the brake cable is exposed. This solves the problem of exposed brake cables on walkers causing inconvenience to people with mobility impairments. It not only makes the walker more concise and beautiful in appearance, but also reduces the possibility of the brake cable being interfered with by external factors, and improves the service life and safety of the brake cable.

[0009] Furthermore, the brake fixing member has a first opening groove on its outer side, and the brake moving member includes a first moving part and a second moving part connected together. The first moving part is housed in the brake fixing member, and the second moving part is exposed to the brake fixing member through the first opening groove.

[0010] By adopting the above technical solution, the first opening groove on the outer side of the brake fixing component provides a channel for the exposure of the second moving part of the brake moving component. The first moving part of the brake moving component is housed in the brake fixing component. This design not only ensures the effective sliding of the brake moving component within the brake fixing component, but also makes the movement of the brake moving component more stable and directional, which helps to accurately implement the braking operation and improves the practicality and operability of the trolley braking system.

[0011] Furthermore, the first moving part is provided with a second opening groove, and the brake fixing member is provided with a pin, which passes through the second opening groove and slides in cooperation with the second opening groove.

[0012] By adopting the above technical solution, the pin passes through the second opening groove and slides in cooperation with the second opening groove, which can provide an auxiliary guiding function for the sliding of the brake moving part. When the brake cable pulls the brake moving part, the pin can ensure that the brake moving part slides smoothly up and down along a specific trajectory, avoiding the brake moving part from shaking or deviating, thereby improving the stability of the braking system. This stable sliding cooperation allows the brake pad to accurately contact the rear wheel and realize the braking function, reducing the uncertainty and deviation in the braking process, making the walking aid more reliable when braking, and ensuring the safety and comfort of people with mobility impairments when using the walking aid.

[0013] Furthermore, the brake component includes a brake block and a connecting rod connected to the brake block. The connecting rod is provided with an external thread section. The bottom of the second moving part is provided with a placement groove for accommodating the brake block, and one end of the placement groove is provided with an external thread protrusion communicating with the placement groove. The connecting rod passes through the placement groove and the external thread protrusion in sequence. A knob is provided on the outside of the external thread protrusion. One end of the knob is threadedly connected to the external thread protrusion, and the other end is threadedly connected to the external thread section of the connecting rod. The knob controls the up and down movement of the brake block relative to the brake moving part by rotation.

[0014] By adopting the above technical solution, the brake pads can be moved up and down relative to the brake moving parts by rotating the knob. The position of the brake pads can be easily adjusted to adapt to different usage needs and braking conditions. When the brake pads wear out due to long-term use, resulting in poor braking performance, the user can easily adjust the position of the brake pads by rotating the knob to maintain a suitable distance and contact force with the rear wheel. This effectively ensures the stability and reliability of the braking function, avoids safety hazards such as brake failure due to improper brake pad position, and greatly improves the safety and convenience of using the walking aid.

[0015] Furthermore, a first receiving groove and a second receiving groove are provided on the side of the first moving part away from the second moving part, which are coaxial and connected. One end of the brake cable passes through the first receiving groove and the second receiving groove in sequence and is exposed outside the brake fixing member. A return spring is provided in the second receiving groove. One end of the return spring is connected to the interior of the brake fixing member, and the other end is connected to the top of the second receiving groove, which is used to provide the return force of the brake moving part.

[0016] By adopting the above technical solution, the first and second receiving grooves provide guidance for the connection of the brake cable, making the connection between the brake cable and the brake moving part smoother and avoiding problems such as tangling and jamming during the connection process. Simultaneously, the return spring located in the second receiving groove provides timely reset force to the brake moving part after the braking operation, allowing it to quickly return to its initial position. This ensures the braking system is ready for the next braking operation quickly, making operation easier for the user and enhancing the reliability and safety of the braking system.

[0017] Furthermore, a brake housing is also provided on the outside of the brake moving part, and it covers the outside of the second moving part.

[0018] By adopting the above technical solution, a brake housing covering the second moving part is provided on the outside of the brake moving part, which can protect the brake moving part from external impacts, dust, or other debris, thus extending its service life. At the same time, the brake housing also provides some protection, preventing users from accidentally touching the brake moving part during operation, improving safety, and making the overall use of the walking trolley more stable and reliable.

[0019] Furthermore, the brake housing is detachably connected to the brake fixing component.

[0020] By adopting the above technical solution, the brake housing and brake fixing component can be detachably connected, making the installation and removal of the brake housing more convenient. When it is necessary to adjust the brake pads, the brake housing can be easily removed along the guide groove, which facilitates the operation of the internal structure. After the adjustment is completed, it can be easily reinstalled, improving the convenience and efficiency of brake adjustment.

[0021] Furthermore, this utility model also provides a walking aid, including a rear wheel brake concealed structure and a main frame as described above. The bottom front and rear sides of the main frame are respectively provided with front wheels and rear wheels. The top sides of the main frame are provided with brake operating mechanisms. The rear wheel brake concealed structure is disposed inside the two sides of the main frame, and the brake component faces the rear wheel. The brake cable is disposed inside the main frame, with one end connected to the brake operating mechanism and the other end connected to the brake moving component of the rear wheel brake concealed structure.

[0022] By adopting the above technical solution, the brake cable of the walking aid is concealed within the main frame, resulting in a simpler overall appearance and preventing the brake cable from being exposed and causing inconvenience to users with mobility impairments. When the brake control mechanism is operated, the brake cable pulls the brake moving component to slide on the brake fixing component, causing the brake component to move down and lock the rear wheel, thus achieving the braking function. Because the brake fixing component is fixed within the main frame, and the brake moving component is slidably connected to the brake fixing component, the stability and reliability of the brake structure are ensured. In addition, this concealed brake cable structure also reduces the risk of brake cable damage due to external environmental influences, extends the service life of the brake cable, and improves the overall safety and practicality of the walking aid.

[0023] In summary, this application includes at least the following beneficial technical effects: The rear wheel brake concealed structure provided by this utility model allows the brake cable to be concealed within the main frame of the walking aid trolley. One end of the brake cable is connected to the brake control mechanism, and the other end is connected to the brake moving part. When the brake control mechanism is operated, the brake cable pulls the brake moving part, which moves towards the rear wheel of the walking aid trolley. When the brake moving part slides downward, it locks the rear wheel, thus achieving effective braking of the rear wheel of the walking aid trolley. Furthermore, since the brake cable is concealed within the main frame of the walking aid trolley, it avoids the situation where the brake cable is exposed, solving the problem of inconvenience caused to people with mobility impairments by exposed brake cables on trolleys in the market. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a walking cart provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the rear wheel brake concealed structure and its cooperation with the rear wheel provided in an embodiment of this utility model; Figure 3 This is an exploded view of a rear wheel brake concealed structure provided in an embodiment of this utility model; Figure 4 This is a cross-sectional view of a rear wheel brake concealed structure provided in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Rear wheel brake internal structure; 11. Brake fixing component; 111. First opening groove; 112. Pin; 12. Brake moving component; 121. First moving part; 1211. Second opening groove; 1212. First receiving groove; 1213. Second receiving groove; 1214. Return spring; 122. Second moving part; 1221. Placement groove; 1222. External threaded protrusion; 1223. Knob; 13. Brake cable; 14. Brake component; 141. Brake block; 142. Connecting rod; 143. Limiting nut; 15. Brake housing; 2. Walking aid trolley; 21. Main frame; 22. Brake control mechanism; 23. Rear wheel; 24. Front wheel. Detailed Implementation

[0026] The following combination Figure 1-4 The technical solutions in the embodiments of this utility model will be described in detail.

[0027] Example 1 See Figure 1-2Embodiment 1 provides a rear wheel brake concealed structure 1, including a brake fixing member 11, a brake moving member 12, and a brake cable 13. The brake fixing member 11 is fixed inside the main frame 21 of the walking aid 2. The brake moving member 12 is slidably connected to the brake fixing member 11. The brake cable 13 is concealed inside the main frame 21 of the walking aid 2, with one end connected to the brake moving member 12 and the other end used to connect to the brake operating mechanism 22 of the walking aid 2. A brake member 14 is connected to the bottom of the brake moving member 12. The brake member 14 faces the rear wheel 23 of the walking aid 2. The brake member 14 is used to lock the rear wheel 23 when the brake moving member slides downward.

[0028] See Figure 3 The brake fixing member 11 has a first opening groove 111 on its outer side. The brake moving member 12 includes a first moving part 121 and a second moving part 122 connected together. The first moving part 121 is housed in the brake fixing member 11, and the second moving part 122 is exposed in the brake fixing member 11 through the first opening groove 111. Furthermore, the first moving part 121 has a second opening groove 1211, and the brake fixing member 11 has a pin 112 inside. The pin 112 passes through a through hole on the brake fixing member 11 and is inserted into the second opening groove 1211. The pin 112 is fixed in the brake fixing member 11 and slides relative to the second opening groove 1211.

[0029] Furthermore, the brake component 14 includes a brake block 141 and a connecting rod 142 connected to the brake block 141. The connecting rod 142 is provided with an external thread section, and a limit nut 143 is also provided at the top of the external thread section of the connecting rod 142. The bottom of the second moving part 122 is provided with a placement groove 1221 for accommodating the brake block 141, and one end of the placement groove 1221 is provided with an external thread protrusion 1222 communicating with the placement groove 1221. The connecting rod 142 passes through the placement groove 1221 and the external thread protrusion 1222 in sequence. A knob 1223 is provided on the outside of the external thread protrusion 1222. One end of the knob 1223 is threadedly connected to the external thread protrusion 1222, and the other end is threadedly connected to the external thread section of the connecting rod 142. The knob 1223 controls the up and down movement of the brake block 141 relative to the brake moving part 12 by rotation, thereby adjusting the position of the brake block 141.

[0030] See Figure 4 The first moving part 121 has a first receiving groove 1212 and a second receiving groove 1213 that are coaxial and connected on the side away from the second moving part 122. One end of the brake cable 13 passes through the first receiving groove 1212 and the second receiving groove 1213 in sequence and is exposed to the brake fixing member 11. A return spring 1214 is provided in the second receiving groove 1213. One end of the return spring 1214 is connected to the inner bottom of the brake fixing member 11, and the other end is connected to the top of the second receiving groove 1213 to provide the return force of the brake moving part 12.

[0031] To further protect the internal structure of the rear wheel brake, a brake housing 15 is provided on the outside of the brake moving part 12. The brake housing 15 is detachably connected to the brake fixing part 11 and covers the outside of the second moving part 122.

[0032] Example 2 Example 2 provides a walking trolley, including a rear wheel brake concealed structure 1 and a main frame 21 as described in Example 1. The bottom of the main frame 21 is symmetrically provided with a front wheel 24 and a rear wheel 23, respectively. The top of the main frame 21 is provided with brake operating mechanisms 22 on both sides. The rear wheel brake concealed structure 1 is located inside both sides of the main frame 21, and the brake component 14 of the rear wheel brake concealed structure 1 faces the rear wheel 23. The brake cable 13 is located inside the main frame 21, with one end connected to the brake operating mechanism 22 and the other end connected to the brake moving component 12 of the rear wheel brake concealed structure 1.

[0033] When the user operates the brake control mechanism 22, the brake cable 13 pulls the brake moving part 12 to slide on the brake fixing part 11, which drives the brake part 14 to move down and lock the rear wheel 23, thus realizing the braking function.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rear wheel brake concealed structure for installation inside a walking aid trolley, characterized in that: The device includes a brake fixing component, a brake moving component, and a brake cable. The brake fixing component is fixed within the main frame of the walking aid. The brake moving component is slidably connected to the brake fixing component. The brake cable is concealed within the main frame of the walking aid, with one end connected to the brake moving component and the other end used to connect to the brake operating mechanism of the walking aid. A brake component is connected to the bottom of the brake moving component, and the brake component faces the rear wheel of the walking aid. The brake component is used to lock the rear wheel when the brake moving component slides downward.

2. The rear wheel brake concealed structure according to claim 1, characterized in that: The brake fixing member has a first opening groove on its outer side, and the brake moving member includes a first moving part and a second moving part connected together. The first moving part is housed in the brake fixing member, and the second moving part is exposed to the brake fixing member through the first opening groove.

3. The rear wheel brake concealed structure according to claim 2, characterized in that: The first moving part is provided with a second opening groove, and the brake fixing member is provided with a pin, which passes through the second opening groove and slides in cooperation with the second opening groove.

4. The rear wheel brake concealed structure according to claim 3, characterized in that: The brake component includes a brake block and a connecting rod connected to the brake block. The connecting rod has an external thread section. The bottom of the second moving part has a placement groove for accommodating the brake block, and one end of the placement groove has an external thread protrusion communicating with the placement groove. The connecting rod passes through the placement groove and the external thread protrusion in sequence. A knob is provided on the outside of the external thread protrusion. One end of the knob is threaded to the external thread protrusion, and the other end is threaded to the external thread section of the connecting rod. The knob controls the up and down movement of the brake block relative to the brake moving part by rotation.

5. The rear wheel brake concealed structure according to claim 2, characterized in that: The first moving part is provided with a coaxial and connected first receiving groove and second receiving groove on the side away from the second moving part. One end of the brake cable passes through the first receiving groove and the second receiving groove in sequence and is exposed outside the brake fixing member. A return spring is provided in the second receiving groove. One end of the return spring is connected to the interior of the brake fixing member, and the other end is connected to the top of the second receiving groove, which is used to provide the return force of the brake moving part.

6. The rear wheel brake concealed structure according to claim 2, characterized in that: The brake moving part is further provided with a brake housing on its outer side, which covers the outer side of the second moving part.

7. The rear wheel brake concealed structure according to claim 6, characterized in that: The brake housing is detachably connected to the brake fixing component.

8. A walking aid stroller, characterized in that: The invention includes a rear wheel brake concealed structure and a main frame as described in any one of claims 1-7. The main frame has a front wheel and a rear wheel respectively arranged on the front and rear sides of its bottom. The main frame has a brake operating mechanism arranged on both sides of its top. The rear wheel brake concealed structure is disposed inside both sides of the main frame, with the brake component facing the rear wheel. The brake cable is disposed inside the main frame, with one end connected to the brake operating mechanism and the other end connected to the brake moving component of the rear wheel brake concealed structure.

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