Brake system of multifunctional walking aid equipment and multifunctional walking aid equipment

Abstract

The utility model provides a brake system of multifunctional walking aid equipment and the multifunctional walking aid equipment, and relates to the technical field of travel equipment. The brake system of the multifunctional walking aid equipment comprises a driving device, a power wheel and a brake handle, the brake handle is used for driving the friction piece; the driving device is in transmission connection with the power wheel and is used for providing power for the power wheel so as to drive the power wheel to rotate; the brake system further comprises a detection device, and the detection device is used for detecting the change of the relative position of the brake handle on the multifunctional walking aid equipment and generating a position change signal. The detection device and the driving device are electrically connected with the control device, and the control device is used for controlling the driving device to drive the power wheel to decelerate or stop rotating after receiving the position change signal. The braking system can assist a user in braking the power wheels of the multifunctional walking aid equipment, and the driving safety of the multifunctional walking aid equipment can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of travel equipment, and in particular to a brake system of a multifunctional walking aid device and a multifunctional walking aid device. Background Art

[0002] A walker is a device that can assist the human body to support weight, maintain balance and walk, and has good stability and safety. A walker can provide support for patients or elderly people who cannot walk independently and assist users in walking.

[0003] In order to ensure the safety of the use of walkers, most walkers are equipped with handbrakes. When there is an obstacle in front of them, the user can operate the handbrake to brake the rollers. Some users of walkers have relatively weak hand strength. When braking, it is sometimes difficult to press the brake handle in place and maintain it for a certain period of time, causing the rollers to still rotate at a high speed, making it impossible to brake the rollers by using the handbrake. Utility Model Content

[0004] The purpose of the present application is to overcome the defects of the prior art and to provide a brake system and a multifunctional walking aid device for solving the problems in the prior art.

[0005] In order to solve the above problems, the first aspect of the embodiment of the present application provides a brake system of a multifunctional walking aid device, comprising a driving device, a power wheel and a brake handle; the driving device is transmission-connected to the power wheel, and the driving device is used to provide power to the power wheel to drive the power wheel to rotate;

[0006] The brake handle is used to drive the friction member so that the friction member contacts the power wheel;

[0007] The brake system further comprises a detection device, which is used to detect a change in the relative position of the brake handle on the multifunctional walking aid and generate a position change signal;

[0008] The detection device and the driving device are both electrically connected to a control device, and the control device is used to control the driving device to drive the power wheel to decelerate or stop after receiving the position change signal.

[0009] In a possible implementation, the brake handle is rotatably disposed on the multifunctional walking aid, and the detection device includes a Hall sensor. A magnet corresponding to the Hall sensor is disposed on the brake handle; or

[0010] The detection device comprises a position sensor; or

[0011] The detection device comprises an angle detection device, wherein the angle detection device comprises an angle sensor or an encoder.

[0012] In a possible implementation, the driving device includes a frameless motor and a reduction transmission structure, and the frameless motor is transmission-connected to the power wheel via the reduction transmission mechanism.

[0013] In a possible implementation manner, the reduction transmission mechanism includes a sun gear, a planet gear, a planet carrier and a ring gear, wherein the planet gears are multiple and rotatably arranged on the planet carrier; the sun gear and the planet gears are both located inside the ring gear, and the sun gear and the ring gear are both meshed with the planet gears;

[0014] The rotor of the frameless motor is connected to the sun wheel for synchronous rotation, and the planet carrier is fixedly connected to the power wheel.

[0015] In a possible implementation manner, the power wheel includes a wheel hub, wherein the planet carrier is fixedly connected to the wheel hub;

[0016] The outer ring of the wheel hub is provided with a tire.

[0017] A second aspect of an embodiment of the present application provides a multifunctional walking aid device, comprising a first bracket, a second bracket and the brake system as described above; the brake system comprises a driving device, a power wheel and a brake handle, and the driving device, the power wheel and the brake handle correspond to each other one by one, wherein the brake system is provided on both the first bracket and the second bracket.

[0018] In a possible implementation, a first handle is provided on the first bracket, and a second handle is provided on the second bracket; wherein the brake handle of the brake system on the first bracket is located below the first handle; and the brake handle of the brake system on the second bracket is located below the second handle.

[0019] In a possible implementation manner, a seat portion is disposed between the first bracket and the second bracket, a power module is disposed inside the seat portion, and the power module is used to provide electrical energy to electrical devices.

[0020] In a possible implementation, a first armrest is further provided on the first bracket, and a second armrest is further provided on the second bracket; wherein the first armrest is closer to the seat portion than the first handle, and the second armrest is closer to the seat portion than the second handle.

[0021] In a possible implementation manner, a backrest portion is further disposed between the first bracket and the second bracket, and the backrest portion is located above the seat portion.

[0022] The beneficial effects of this application include:

[0023] The brake system of the multifunctional walking aid device proposed in the present application includes a driving device, a power wheel, a brake handle and a detection device. When the user operates the brake handle, the brake handle drives the friction member to contact the power wheel, thereby achieving braking of the power wheel; during the user's operation of the brake handle, the relative position of the brake handle on the multifunctional walking aid device will change. At this time, the detection device detects the position change of the brake handle and generates a position change signal, wherein the control device controls the driving device to drive the power wheel to slow down or stop after receiving the position change signal, thereby achieving braking of the power wheel and playing a role in protecting the driving device.

[0024] The brake system can assist the user in braking the power wheels of the multifunctional walking aid device, and can effectively improve the driving safety of the multifunctional walking aid device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A structural block diagram of a brake system of a multifunctional walking aid device is shown;

[0027] Figure 2 A schematic diagram of a multifunctional walking aid device is shown;

[0028] Figure 3 A schematic diagram showing the positional relationship between the brake handle and the second grip when the brake handle is in the initial position;

[0029] Figure 4 Shows Figure 3 A partial enlarged view of the middle A direction;

[0030] Figure 5 A schematic diagram showing the positional relationship between the brake handle and the second handle when the brake handle is in a gripped state;

[0031] Figure 6 Shows Figure 5 A partial enlarged view of the middle B direction;

[0032] Figure 7 A cross-sectional view of a power wheel and a driving device is shown;

[0033] Figure 8A simplified structural diagram of a reduction transmission mechanism is shown.

[0034] Description of main component symbols:

[0035] 100-driving device; 110-frameless motor; 111-housing; 112-rotor; 113-stator; 121-sun gear; 122-planetary gear; 123-planet carrier; 124-ring gear; 200-power wheel; 210-wheel hub; 220-tire; 300-brake handle; 301-magnet; 310-brake line; 320-friction member; 400-detection device; 401-Hall sensor; 500-control device; 610-first bracket; 6100-first support rod; 611-first grip; 612-first armrest; 620-second bracket; 6200-second support rod; 621-second grip; 622-second armrest; 710-seat part; 720-backrest. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] Example

[0039] See also Figure 1 and Figure 2 In this embodiment, a brake system of a multifunctional walking aid is provided, including a driving device 100, a power wheel 200 and a brake handle 300. The driving device 100 is in transmission connection with the power wheel 200, and the driving device 100 is used to provide power to the power wheel 200 to drive the power wheel 200 to rotate.

[0040] The brake handle 300 is used to drive the friction member 320 so that the friction member 320 contacts the power wheel 200 .

[0041] The brake system further includes a detection device 400, which is used to detect the change in the relative position of the brake handle 300 on the multifunctional walking aid and generate a position change signal.

[0042] The detection device 400 and the driving device 100 are both electrically connected to the control device 500. The control device 500 is used to send a braking signal to the driving device 100 after receiving the position change signal, so as to control the driving device 100 to drive the power wheel 200 to decelerate or stop. The control device 500 may include a single chip microcomputer or a microprocessor.

[0043] When the drive device 100 receives the brake signal, its output torque will be reduced (including reducing the output torque to zero). Since the drive device 100 is in transmission connection with the power wheel 200, when the output torque of the drive device 100 is reduced, the speed of the power wheel 200 is correspondingly reduced or stopped.

[0044] When the user operates the brake handle 300, the relative position of the brake handle 300 on the multifunctional walking aid device will change. At this time, the detection device 400 detects the position change of the brake handle 300 and generates a position change signal. After receiving the position change signal, the control device 500 controls the driving device 100 to drive the power wheel 200 to slow down or stop, thereby achieving braking of the power wheel 200.

[0045] The brake system can assist the user in braking the power wheel 200 of the multifunctional walking aid device, and can effectively improve the driving safety of the multifunctional walking aid device.

[0046] like Figure 2 As shown, the brake handle 300 is connected to the brake wire 310 and the friction member 320. When the user operates the brake handle 300, the brake handle 300 will pull the brake wire 310, and the brake wire 310 drives the friction member 320 to move so that the friction member 320 contacts the power wheel 200, and the power wheel 200 is braked by the friction between the friction member 320 and the power wheel 200. The connection between the brake handle 300, the brake wire 310 and the friction member 320 can refer to the existing design of bicycles, etc., and will not be repeated in this article.

[0047] During the braking process, if the friction member 320 directly stops the power wheel 200, the drive device 100 will be damaged by the sudden stop of the power wheel 200. However, in the present embodiment, when the change in the relative position of the brake handle 300 on the multifunctional walking aid is detected, that is, when it is detected that the user is performing manual braking, the control device 500 controls the drive device 100 so that the output torque of the drive device 100 is reduced, thereby protecting the drive device 100.

[0048] The brake handle 300 is rotatably arranged on the multifunctional walking aid device.

[0049] like Figure 2 As shown, a first support rod 6100 is provided on the first bracket 610, a second support rod 6200 is provided on the second bracket 620, a first grip 611 is provided on the top of the first support rod 6100, and a second grip 621 is provided on the top of the second support rod 6200. The brake handle 300 of the brake system on the first bracket 610 is located below the first grip 611 and is rotatably connected to the first support rod 6100, and the brake handle 300 of the brake system on the second bracket 620 is located below the second grip 621 and is rotatably connected to the second support rod 6200.

[0050] In this embodiment, the detection device 400 includes a Hall sensor 401, wherein a magnet 301 corresponding to the Hall sensor 401 is disposed on the brake handle 300. When the brake handle 300 rotates, the Hall sensor 401 can detect that the position of the brake handle 300 has changed, thereby generating a position change signal.

[0051] like Figure 3-Figure 6 As shown, the brake system on the second bracket 620 is taken as an example. For the brake system of the second bracket 620, the Hall sensor 401 is arranged on the second handle 621. When the brake handle 300 is in the initial position, there is a certain distance between the magnet 301 on the brake handle 300 and the Hall sensor 401; when the brake handle 300 is pressed for braking, the brake handle 300 rotates toward the side where the second handle 621 is located. As the brake handle 300 rotates, the distance between the magnet 301 and the Hall sensor 401 is reduced. In this way, the Hall sensor 401 can detect the change in the position of the brake handle 300 and generate a position change signal. Refer to Figure 6 When the brake handle 300 is operated to brake, when the brake handle 621 is rotated to the limit position, the distance between the magnet 301 and the Hall sensor 401 is the smallest. After the brake handle 300 is released, the brake handle 300 automatically returns to the initial position under the action of the elastic member.

[0052] In some embodiments, the detection device includes a position sensor or the like.

[0053] In some embodiments, the detection device includes an angle detection device. Specifically, the angle detection device includes an angle sensor or an encoder.

[0054] In this embodiment, the driving device 100 includes a frameless motor 110 and a reduction transmission structure, and the frameless motor 110 is transmission-connected to the power wheel 200 via the reduction transmission mechanism.

[0055] like Figure 7 and Figure 8 As shown, the frameless motor 110 includes a housing 111, a rotor 112 and a stator 113, wherein the rotor 112 and the stator 113 are both arranged inside the housing 111, and the stator 113 is fixedly connected to the housing 111. The stator 113 and the housing 111 can be fixedly connected by interference fit, screw connection, snap connection, etc. The reduction transmission mechanism includes a sun gear 121, a planetary gear 122, a planetary carrier 123 and a ring gear 124, wherein the planetary gear 122 has multiple and is rotatably arranged on the planetary carrier 123. The sun gear 121 and the planetary gear 122 are both located inside the ring gear 124, and the sun gear 121 and the ring gear 124 are both meshed with the planetary gear 122. It should be noted that, Figure 8 This is a simplified structural diagram of the medium reduction transmission mechanism, in which the relevant components are represented by simple lines only.

[0056] The rotor 112 of the frameless motor 110 is connected to the sun gear 121 for synchronous rotation, the planet carrier 123 and the power wheel 200 can be fixedly connected by screw connection or the like, and the ring gear 124 and the stator 113 of the frameless motor 110 can be fixedly connected by screw connection or the like. The rotor 112 can be inserted into the center hole of the sun gear 121, wherein the rotor 112 and the center hole of the sun gear 121 can be connected by interference fit or the like. The rotor 112 and the sun gear 121 can be coaxially arranged.

[0057] When the frameless motor 110 is started, the rotor 112 drives the sun gear 121 to rotate synchronously, thereby driving the planet carrier 123 to rotate, wherein the planet carrier 123 drives the power wheel 200.

[0058] The power wheel 200 includes a wheel hub 210, wherein the planet carrier 123 is fixedly connected to the wheel hub 210. The outer ring of the wheel hub 210 is provided with a tire 220, and the tire 220 may be elastic, thereby playing the role of shock absorption and protecting the wheel hub 210.

[0059] In this embodiment, a multifunctional walking aid device is also proposed, including a first bracket 610, a second bracket 620 and the above-mentioned brake system. The brake system includes a driving device 100, a power wheel 200 and a brake handle 300, and the driving device 100, the power wheel 200 and the brake handle 300 correspond to each other. The brake system is provided on both the first bracket 610 and the second bracket 620. Taking the first bracket 610 as an example, the housing 111 of the frameless motor 110 is fixedly connected to the first bracket 610.

[0060] like Figure 2As shown, a first handle 611 is provided on the first bracket 610, and a second handle 621 is provided on the second bracket 620. The brake handle 300 of the brake system on the first bracket 610 is located below the first handle 611, and the brake handle 300 of the brake system on the second bracket 620 is located below the second handle 621.

[0061] A seat portion 710 is disposed between the first bracket 610 and the second bracket 620. A power module is disposed inside the seat portion 710. The power module is used to provide power to the electrical components. The driving device 100, the detection device 400, the control device 500, etc. mentioned above are all electrically connected to the power module.

[0062] The first bracket 610 is further provided with a first armrest 612, and the second bracket 620 is further provided with a second armrest 622. The first armrest 612 is closer to the seat portion 710 than the first grip 611, and the second armrest 622 is closer to the seat portion 710 than the second grip 621.

[0063] A backrest portion 720 is further disposed between the first bracket 610 and the second bracket 620 , and the backrest portion 720 is located above the seat portion 710 .

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A brake system for a multifunctional walking aid, characterized in that: It comprises a driving device, a power wheel and a brake handle; the driving device is in transmission connection with the power wheel, and the driving device is used to provide power to the power wheel to drive the power wheel to rotate; The brake handle is used to drive the friction member so that the friction member contacts the power wheel; The brake system further comprises a detection device, which is used to detect a change in the relative position of the brake handle on the multifunctional walking aid and generate a position change signal; The detection device and the driving device are both electrically connected to a control device, and the control device is used to control the driving device to drive the power wheel to decelerate or stop after receiving the position change signal.

2. The brake system of the multifunctional walking aid device according to claim 1, characterized in that: The brake handle is rotatably arranged on the multifunctional walking aid device; The detection device includes a Hall sensor; wherein a magnet corresponding to the Hall sensor is provided on the brake handle; or The detection device comprises a position sensor; or The detection device comprises an angle detection device, wherein the angle detection device comprises an angle sensor or an encoder.

3. The brake system of the multifunctional walking aid device according to claim 1, characterized in that: The driving device comprises a frameless motor and a reduction transmission structure, and the frameless motor is transmission-connected to the power wheel via the reduction transmission mechanism.

4. The brake system of the multifunctional walking aid device according to claim 3, characterized in that: The reduction transmission mechanism comprises a sun gear, a planetary gear, a planetary carrier and a ring gear, wherein the planetary gears are multiple and rotatably arranged on the planetary carrier; the sun gear and the planetary gears are both located inside the ring gear, and the sun gear and the ring gear are both meshed with the planetary gears; The rotor of the frameless motor is connected to the sun wheel for synchronous rotation, and the planet carrier is fixedly connected to the power wheel.

5. The brake system of the multifunctional walking aid device according to claim 4, characterized in that: The power wheel comprises a wheel hub, wherein the planet carrier is fixedly connected to the wheel hub; The outer ring of the wheel hub is provided with a tire.

6. A multifunctional walking aid, characterized in that: It comprises a first bracket, a second bracket and a brake system as described in any one of claims 1 to 5; the brake system comprises a driving device, a power wheel and a brake handle, the driving device, the power wheel and the brake handle correspond to each other one by one, wherein the brake system is arranged on both the first bracket and the second bracket.

7. The multifunctional walking aid device according to claim 6, characterized in that: A first handle is provided on the first bracket, and a second handle is provided on the second bracket; wherein the brake handle of the brake system on the first bracket is located below the first handle; and the brake handle of the brake system on the second bracket is located below the second handle.

8. The multifunctional walking aid device according to claim 7, characterized in that: A seat portion is arranged between the first bracket and the second bracket, and a power module is arranged inside the seat portion. The power module is used to provide electric energy to the electrical components.

9. The multifunctional walking aid device according to claim 8, characterized in that: The first bracket is further provided with a first armrest, and the second bracket is further provided with a second armrest; wherein the first armrest is closer to the seat portion than the first handle, and the second armrest is closer to the seat portion than the second handle.

10. The multifunctional walking aid device according to claim 8, characterized in that: A backrest portion is also provided between the first bracket and the second bracket, and the backrest portion is located above the seat portion.

Images