Braking device, wheel assembly and walking aid

Abstract

The application discloses a brake device, a wheel body assembly and a walking aid. The brake device comprises a shaft body, a shell, a magnetic sensing mechanism and an adjusting mechanism. The shell can rotate relative to the shaft body. The magnetic sensing mechanism is arranged in the shell and is used for generating resistance opposite to the rotating direction of the shell or the shaft body through a magnetic field reaction when the shell rotates relative to the shaft body. The adjusting mechanism is connected with the magnetic sensing mechanism and is used for adjusting the size of the resistance. The resistance is generated through the magnetic sensing mechanism, and the wheel body integrated with or connected with the brake device can be braked. The braking force is related to the rotation of the shell or the shaft body, and the brake is not a friction brake. The brake device has the advantages of higher safety, reduced abrasion, prolonged service life of the brake device, simple structure, easy preparation, automatic adjustment of the resistance through the adjusting mechanism, wider application range of the brake device and higher intelligence.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a braking device, a wheel assembly, and a walker. Background Art

[0002] Assistive walking devices, such as walkers, can help people with lower limb diseases or the elderly with limited mobility to move around. For example, a walker can be a support frame that the user can hold onto with both hands and lift to move while walking, thereby achieving the purpose of moving the body.

[0003] During their long-term research and development, the applicants of this application discovered that users need to constantly lift the support frame while walking, which is a heavy burden, slows movement, and is inconvenient. Currently, wheels are installed at the bottom of the support frame to increase its flexibility. However, the support force and speed provided to the user during movement are uncontrollable, which can easily cause the user to fall and is unsafe. Using a brake device for braking requires high user input, and sudden braking also poses risks. Summary of the Invention

[0004] The present application provides a braking device, a wheel assembly, and a walker to solve the technical problem of poor safety caused by providing wheels on devices such as walkers in the prior art.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is to provide a braking device, comprising:

[0006] Axis;

[0007] A housing is sleeved outside the shaft and coaxially arranged with the shaft, and the housing can rotate relative to the shaft;

[0008] a magnetic induction mechanism, disposed in the housing, for generating resistance to the housing in a direction opposite to the rotation of the housing, or generating resistance to the shaft in a direction opposite to the rotation of the shaft, through a magnetic field reaction, when the housing rotates relative to the shaft;

[0009] The regulating mechanism is connected to the magnetic induction mechanism and is used to adjust the magnitude of the resistance.

[0010] In order to solve the above technical problems, another technical solution adopted by the present application is to provide a wheel assembly, comprising:

[0011] As in the above-mentioned braking device, wherein the housing is arranged in an annular shape and is used as a wheel body; or

[0012] As for the braking device and wheel body mentioned above, the wheel body is connected to the housing or the shaft body.

[0013] To solve the above technical problems, another technical solution adopted by the present application is to provide a walking aid, comprising a main body frame and a wheel body assembly as described above, the wheel body assembly being rotationally connected to the bottom of the main body frame.

[0014] The brake device comprises a shaft body, a shell, a magnetic sensing mechanism and an adjusting mechanism. The shell is sleeved outside the shaft body and coaxially arranged with the shaft body. The shell can rotate relative to the shaft body. The magnetic sensing mechanism is arranged in the shell and used to generate resistance in the opposite direction of the rotation of the shell relative to the shaft body or the rotation of the shaft body through magnetic field reaction. The adjusting mechanism is connected with the magnetic sensing mechanism and used to adjust the size of the resistance. The resistance generated by the magnetic sensing mechanism can brake the wheel body integrated with or connected to the brake device. The braking force is related to the rotation of the shell or the shaft body, instead of friction braking. The brake device has higher safety and longer service life, and can reduce wear and tear. In addition, the brake device has simple structure and is easy to manufacture. The adjusting mechanism can automatically adjust the resistance, so that the brake device has wider application range and is more intelligent. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figures 1 to 5 is a structural schematic view of the first embodiment of the brake device of the present application;

[0017] Figures 6 to 14 is a structural schematic view of the second embodiment of the brake device of the present application;

[0018] Figures 15 to 21 is a structural schematic view of the third embodiment of the brake device of the present application;

[0019] Figures 22 to 26 is a structural schematic view of the fourth embodiment of the brake device of the present application;

[0020] Figures 27 to 30 is a structural schematic view of the fifth embodiment of the brake device of the present application;

[0021] Figures 31 to 34 is a structural schematic view of the sixth embodiment of the brake device of the present application;

[0022] Figures 35 to 37 is a structural schematic view of the seventh embodiment of the brake device of the present application;

[0023] Figures 38 to 39 is a structural schematic diagram of an eighth embodiment of the braking device of the present application;

[0024] Figures 40 to 42 is a structural schematic diagram of a ninth embodiment of the braking device of the present application;

[0025] Figures 43 to 46 is a structural schematic diagram of the tenth embodiment of the braking device of the present application;

[0026] Figure 47 is a structural schematic diagram of the eleventh embodiment of the braking device of the present application;

[0027] Figures 48 to 49 is a structural schematic diagram of the twelfth embodiment of the braking device of the present application;

[0028] Figure 50 This is a structural diagram of the second embodiment of the wheel assembly of the present application;

[0029] Figure 51 This is a schematic structural diagram of the first embodiment of the walking aid of the present application;

[0030] Figure 52 It is a structural diagram of the second embodiment of the walking aid of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The terms "first" and "second" in this application are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" is merely an association relationship that describes associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] See also Figures 1 to 4 The first embodiment of the braking device 10 of the present application includes a shaft 100, a housing 200, a magnetic induction element 310 and a magnet assembly 320. The housing 200 is sleeved outside the shaft 100 and is coaxially arranged with the shaft 100. The housing 200 can rotate relative to the shaft 100. A coil 311 is wound around the magnetic induction element 310. The magnet assembly 320 includes a plurality of magnets spaced apart along the circumference of the shaft 100. One of the magnetic induction element 310 and the magnet assembly 320 is connected to the shaft 100, and the other is connected to the housing 20. 0 connection, so that when the shell 200 rotates relative to the shaft 100, the coil 311 can cut the magnetic field formed by the magnet assembly 320, thereby generating a resistance in the opposite direction of rotation of the shell 200 or the shaft 100, which can brake the brake device 10. Moreover, since its braking force is related to the rotation of the shell 200 or the shaft 100, rather than friction braking, it will not produce an emergency stop effect, which is safer, can also reduce wear and increase the service life of the brake device 10. At the same time, it has a simple structure and is easy to prepare.

[0034] In this embodiment, the braking device 10 may further include a tire 400 . The tire 400 is sleeved outside the housing 200 and can play a role in shock absorption.

[0035] For details, see Figure 5 The magnet may include a first magnet 321 and a second magnet 322. In this embodiment, the first magnet 321 and the second magnet 322 are used as an example for description. The magnet assembly 320 moves at a speed v to Figure 5 The coil 311 rotates counterclockwise in the direction of the magnetic induction element 310, the magnetic induction element 310 is fixed, the magnetic field strengths generated by the first magnet 321 and the second magnet 322 are B1 and B2 respectively, the magnetic pole of the first magnet 321 facing the magnetic induction element 310 is the north pole, and the magnetic pole of the second magnet 322 facing the magnetic induction element 310 is the south pole, the parts of the coil 311 that cut the magnetic flux lines are the c-side part and the d-side part, the projected length of the coil 311 in the direction of cutting the magnetic flux lines (i.e., the circumferential direction of the shaft 100) (i.e., the length of the c-side part or the d-side part along the axial direction of the shaft 100) is L, and the direction of the induced current generated by the c-side part is Figure 5 The direction of the induced current generated on the d side is Figure 5 As shown in the backward direction, the Ampere force F generated by the c side part c =nB1Lv, Ampere force F generated on the d side d =nB2Lv, where n is the number of turns of coil 311. Since the direction of the Ampere force of both is clockwise, the resultant force F 合 =nB1Lv+nB2Lv, since the magnetic field strengths generated by the first magnet 321 and the second magnet 322 are equal, that is, B1=B2=B, then F 合= 2 * nBLv.

[0036] In the embodiment, the resistance has a positive relationship with the rotating speed of the shell 200 or the shaft body 100, and the resistance F is proportional to the rotating speed v of the shell 200, that is, F = 2 * nBLv. 合 = 2 * nBLv can also be obtained, that is, the greater the rotating speed of the shell 200, the greater the resistance generated by the coil 311 cutting the magnetic field formed by the magnet assembly 320 in the opposite direction of the rotating direction of the shell 200, and in the case that the rotating speed of the brake device 10 is unchanged, a constant braking force can be provided, and the stability is good; and in the case that the rotating speed of the brake device 10 is faster, a greater braking force can be provided, thereby preventing the brake device 10 from moving too fast, and improving the safety.

[0037] In the embodiment, the number of magnets is double, and the plurality of magnets are symmetrically arranged relative to the shaft center of the shaft body 100, which can make the magnetic field formed by the magnet assembly 320 more uniform, and further make the resistance generated by the coil 311 cutting the magnetic field formed by the magnet assembly 320 more stable.

[0038] In the embodiment, the magnetic poles of the two magnets symmetrically arranged relative to the shaft center 100 are arranged in the same direction, and the magnetic poles of the two adjacent magnets are arranged in the opposite direction, wherein the installation direction of the magnetic poles of the magnets is defined as facing the shaft center of the shaft body 100 and facing away from the shaft center of the shaft body 100, the same direction of the magnetic poles of the two magnets means that the magnetic poles of the two magnets both face the shaft center of the shaft body 100 or face away from the shaft center of the shaft body 100, and the opposite direction of the magnetic poles of the two magnets means that the magnetic poles of one of the two magnets face the shaft center of the shaft body 100, and the magnetic poles of the other magnet face away from the shaft center of the shaft body 100. Through the above arrangement mode of the magnets, the magnetic field formed by the magnet assembly 320 can be more uniform, and further the resistance generated by the coil 311 cutting the magnetic field formed by the magnet assembly 320 can be more stable.

[0039] In the embodiment, the magnetic sensing piece 310 includes a main body part 312 and a plurality of installation parts 313 arranged at intervals along the outer periphery of the main body part 312, and the coil 311 is wound on the installation part 313, which can make the relative position of the coil 311 and the magnetic sensing piece 310 more stable.

[0040] In the embodiment, the installation part 313 can be arranged in an I-shaped manner, which can facilitate winding of the coil 311 and can limit the coil 311, prevent the coil 311 from falling off from the installation part 313 in a direction away from the shaft body 100, and make the overall structure of the coil 311 and the magnetic sensing piece 310 more stable.

[0041] In other embodiments, the installation part 313 can also be arranged in a straight line type to realize winding of the coil 311, which is not limited herein.

[0042] In the embodiment, the maximum width of the coil 311 on the mounting portion 313 along the circumferential direction of the shaft body 100 is equal to the width of the magnet along the circumferential direction of the shaft body 100, and the maximum length of the coil 311 on the mounting portion 313 along the axial direction of the shaft body 100 is greater than or equal to the length of the magnet along the axial direction of the shaft body 100, so that the coil 311 can continuously cut the magnetic field formed by the magnet assembly 320 during relative motion of the magnet, thereby continuously generating the resistance, and the stability of the resistance is better.

[0043] In other embodiments, the maximum width of the coil 311 on the mounting portion 313 along the circumferential direction of the shaft body 100 can also be greater than the width of the magnet along the circumferential direction of the shaft body 100, which is not limited here.

[0044] In the embodiment, the difference between the maximum width of the coil 311 on the mounting portion 313 along the circumferential direction of the shaft body 100 and the width of the magnet along the circumferential direction of the shaft body 100 is a, and the width of the magnet along the circumferential direction of the shaft body 100 is b, wherein the ratio of a to b is less than or equal to 10%, for example, 10%, 8% or 5%. When a is 0, the coil 311 can continuously cut the magnetic field formed by the magnet assembly 320 during relative motion of the magnet; when a is greater than 0, the two sides of the coil 311 can be in the same magnetic pole corresponding area at the same time within a certain period of time, and the current generated on the coil 311 is 0, and the resistance is interrupted.

[0045] In the embodiment, the number of magnets is greater than the number of mounting portions 313, and the difference between the number of magnets and the number of mounting portions 313 is a positive integer, which can make the magnetic field generated by the magnet continuously act on the coil 311, thereby continuously generating the resistance, and the stability of the resistance is better.

[0046] In the embodiment, all coils 311 on the plurality of mounting portions 313 collectively form a closed loop. Specifically, all coils 311 can be short-circuited and not connected to other devices. In other embodiments, a switch, a resistor or the like can be externally connected, but the closed loop in the embodiment does not include driving devices or the like, that is, the current generated by the coil 311 in the embodiment is only used to generate the ampere force or mainly used to generate the ampere force.

[0047] In other embodiments, a closed loop can also be formed for the coil 311 on each of the plurality of mounting portions 313, or a closed loop can be formed for the coils 311 on each of at least two of the plurality of mounting portions 313, which is not limited here.

[0048] In the embodiment, the shell 200 is formed with a receiving space, the receiving space is formed with an opening (not labeled in the figure) on one side of the shell 200, the magnetic sensing member 310 and the magnet assembly 320 are arranged in the receiving space, the brake device 10 further comprises a cover plate 510, the cover plate 510 is arranged on the opening, which can protect the components such as the magnetic sensing member 310 and the magnet assembly 320, and make the appearance of the brake device 10 more regular.

[0049] In the embodiment, the cover plate 510 and the shaft body 100, and the cover plate 510 and the shell 200 can be fixedly connected by screws respectively. In other embodiments, the cover plate 510 and the shell 200 can also be connected by buckling, welding or pasting, etc., which is not limited here.

[0050] In the embodiment, the brake device 10 further comprises a first bearing 520 and a second bearing 530, the first bearing 520 is arranged between the shaft body 100 and the shell 200, and the second bearing 530 is arranged between the shaft body 100 and the cover plate 510, by arranging the first bearing 520 and the second bearing 530, the friction between the shaft body 100 and the shell 200, and the shaft body 100 and the cover plate 510 can be reduced, and the shaft body 100 can also be supported, prolonging the service life of the shaft body 100, the shell 200 and the cover plate 510.

[0051] Referring to Figure 1 , Figure 6 and Figure 7 , the second embodiment of the brake device 10 comprises a shaft body 100, a shell 200, a magnetic sensing mechanism 300 and an adjusting mechanism 610, the magnetic sensing mechanism 300 is arranged in the shell 200, which is used to generate resistance in the opposite direction of the rotation of the shell 200 or the shaft body 100 when the shell 200 rotates through the magnetic field reaction, the adjusting mechanism 610 is connected with the magnetic sensing mechanism 300, which is used to adjust the size of the resistance, wherein the magnetic sensing mechanism 300 comprises a magnetic sensing member 310 and a magnet assembly 320, the structure of the shaft body 100, the shell 200, the magnetic sensing member 310 and the magnet assembly 320 is described in the first embodiment of the brake device 10 above, which is not described here again, by arranging the adjusting mechanism 610 to automatically adjust the resistance, the application range of the brake device 10 can be wider, and it is more intelligent.

[0052] Referring to Figures 8 to 12In this embodiment, the adjustment mechanism 610 includes an adjustment member 611 and at least one resistor 612. The adjustment member 611 is electrically connected to the magnetic induction mechanism 300 and is provided with a first connection portion 6111. At least two second connection portions 6121 are respectively provided at both ends of the at least one resistor 612. The adjustment member 611 can move relative to the resistor 612 so that the first connection portion 6111 can be electrically connected to one of the at least two second connection portions 6121, thereby connecting loads of different resistance values ​​to the magnetic induction mechanism 300 to achieve resistance adjustment.

[0053] In this embodiment, the braking device 10 may further include a first support tube 613, at least one resistor 612 is arranged on the first support tube 613, the adjusting member 611 is arranged in a ring shape and can rotate relative to the first support tube 613, the first connecting portion 6111 is a groove formed on the outer periphery of the adjusting member 611, the outer peripheral surface of the adjusting member 611 except the groove is insulated, and the groove is conductive, the second connecting portion 6121 includes abutting member 6122 and a first elastic member 6123, the abutting member 6122 is electrically connected to the resistor 612, the first elastic member 6123 is used to provide elastic force to the abutting member 6122 so that the abutting member 6122 abuts against the outer periphery of the adjusting member 611, so that when the first connecting portion 6111 rotates to be opposite to the second connecting portion 6121, the abutting member 6122 can abut against the first connecting portion 6111, thereby enabling the abutting member 6122 to achieve electrical connection with the first connecting portion 6111.

[0054] In this embodiment, an annular groove 6112 is formed on the outer periphery of the adjusting member 611, the first connecting portion 6111 is sunken relative to the annular groove 6112, and the end of the abutment 6122 is arranged in an arc-shaped protrusion, so that at least part of the abutment 6122 is embedded in the annular groove 6112, which can achieve axial limitation of the abutment 6122 along the first support tube 613, prevent the abutment 6122 from separating from the adjusting member 611, and improve the reliability of the braking device 10.

[0055] In this embodiment, the braking device 10 may further include a second support tube 614 and a knob 615 connected to the second support tube 614. The second support tube 614 is nested with the first support tube 613, and the adjusting member 611 is arranged on the second support tube 614, so that the adjusting member 611 can rotate with the knob 615, so that the knob 615 can be rotated under force, and then drive the adjusting member 611 to rotate to achieve adjustment. By setting the knob 615 to achieve adjustment of the adjustment mechanism 610, the adjustment operation can be made more convenient, and the knob 615 occupies less space, making the overall structure of the adjustment mechanism 610 more compact.

[0056] See also Figure 13In the embodiment, the brake device 10 further comprises a housing 616, the adjusting member 611 and the resistor 612 are arranged in the housing 616, an opening 6161 is formed on the end of the housing 616 away from the knob 615, the opening 6161 is polygonal, the second supporting tube 614 is provided with a limiting member 6141 and a second elastic member 6142 at the end away from the knob 615, the second elastic member 6142 is used to provide the limiting member 6141 with elastic force, so that the limiting member 6141 can abut against the housing 616 during rotation of the second supporting tube 614.

[0057] Specifically, in the embodiment, the opening 6161 comprises a plurality of accommodating openings 6162 arranged along the circumference of the first supporting tube 613, when the limiting member 6141 is rotated to the accommodating openings 6162, the compression distance of the second elastic member 6142 is 0, so that the limiting member 6141 is spaced apart from the housing 616, or the limiting member 6141 abuts against the housing 616 but the force acting on the housing 616 is 0, at this time, the first connecting part 6111 abuts against one of the second connecting parts 6121; when the limiting member 6141 is rotated between two accommodating openings 6162, the limiting member 6141 abuts against the housing 616 but the force acting on the housing 616 is greater than 0, at this time, the first connecting part 6111 does not abut against one of the second connecting parts 6121, so that during rotation of the knob 615, the user can perceive whether the knob 615 is rotated to a predetermined gear.

[0058] In other embodiments, the adjusting member 611 can also be a slide arranged in a straight line or an arc, the adjusting member 611 can slide relative to the resistor 612, so that the second connecting part 6121 can be electrically connected with the first connecting part 6111.

[0059] In the embodiment, the number of the resistors 612 is multiple, the multiple resistors 612 form multiple resistor groups, each resistor group comprises at least one resistor 612, the multiple resistor groups are arranged along the axial direction of the first supporting tube 613, the number of the adjusting members 611 is multiple and same as the number of the resistor groups, the multiple adjusting members 611 are arranged along the axial direction of the first supporting tube 613 and correspond to the resistor groups one by one, which can connect the magnetic sensing mechanism 300 to more loads with different resistance values, so that the resistance adjustment is more flexible, the range is wider and the adaptability is better.

[0060] See Figure 14For example, in the embodiment, the number of resistance groups is three, which are respectively connected with three wires of the magnetic sensing mechanism 300, each resistance group includes four resistors 612, the four resistors 612 are located in the same plane perpendicular to the axial direction of the first supporting tube 613, the four resistors 612 in each resistance group are connected in series, one ends of the three resistance groups are connected with each other, and the second connecting portions 6121 are respectively arranged between each resistor 612 and the other end of the resistance group, and the plurality of gears are corresponded, for example, one gear can access three resistors 612, two gears can access six resistors 612, and the like.

[0061] In other embodiments, the magnetic sensing mechanism 300 can also directly lead out two wires to be connected with the adjusting mechanism 610, or the magnetic sensing mechanism 300 can also lead out two or three wires, and then connect with the adjusting mechanism 610 through two wires after rectification (not shown in the figure), which is not limited here.

[0062] Referring to Figure 1 , Figures 15 to 17 The third embodiment of the brake device 10 includes a shaft body 100, a housing 200, a magnetic sensing mechanism 300, and an adjusting mechanism 620, the structures of the shaft body 100, the housing 200, and the magnetic sensing mechanism 300 are described above in the second embodiment of the brake device 10, which will not be repeated here, the adjusting mechanism 620 is connected with the magnetic sensing mechanism 300, and is used for adjusting the size of the resistance.

[0063] In the embodiment, the adjusting mechanism 620 includes an adjusting piece and at least one resistor 622, the adjusting piece includes at least one button 621, the button 621 is provided with a lead-through portion 6211, the brake device 10 further includes a first connecting portion 6221 and a second connecting portion 6222 which are arranged at intervals, the first connecting portion 6221 is electrically connected with one end of the magnetic sensing mechanism 300 through the resistor 622, the second connecting portion 6222 is electrically connected with the other end of the magnetic sensing mechanism 300, the button 621 can be pressed to make the lead-through portion 6211 conduct the first connecting portion 6221 and the second connecting portion 6222, and then the corresponding resistor 622 can be connected as a load with the magnetic sensing mechanism 300, so as to change the resistance, the adjusting of the adjusting mechanism 620 is realized by setting the button 621, the touch feeling of the adjusting can be more obvious, and the gear adjusting can be more reliable.

[0064] In other embodiments, one end of the resistor 622 can be connected with one end of the magnetic sensing mechanism 300 through the first connecting portion 6221, the other end of the resistor 622 can be connected with the other end of the magnetic sensing mechanism 300 through the second connecting portion 6222, the button 621 can be pressed to make the lead-through portion 6211 conduct the first connecting portion 6221 and the second connecting portion 6222, and then the resistor 622 can be short-circuited, so as to change the load connected with the magnetic sensing mechanism 300, thereby changing the resistance.

[0065] In this embodiment, the adjusting member includes at least two buttons 621, and the button 621 is provided with a conductive portion 6211. The number of the first connecting portion 6221 and the second connecting portion 6222 is at least two. The two first connecting portions 6221 are respectively connected to the two ends of at least one resistor 622, so that when one of the at least two buttons 621 is pressed, the conductive portion 6211 can connect one of the at least two first connecting portions 6221 and the second connecting portion 6222, and then the corresponding resistor 622 can be connected to the magnetic induction mechanism 300 as a load to achieve a change in resistance.

[0066] In this embodiment, at least two buttons 621 can be arranged along a straight line at intervals. In other embodiments, at least two buttons 621 can also be arranged along a curve or other linear shapes, which is not limited here.

[0067] See also Figure 18 and Figure 19 In this embodiment, the adjustment mechanism 620 may further include a rebound component, which can act on at least two buttons 621 respectively, so that when one of the at least two buttons 621 is pressed, the other buttons 621 can be bounced up, so that the number of connected resistors 622 is the corresponding gear, there will be no interference between the gears, and the circuit is not prone to short circuit, which has higher reliability and safety.

[0068] In this embodiment, the button 621 includes a button body 6212 and a button 6213 provided at one end of the button body 6212, the guide portion 6211 is provided at the other end of the button body 6212, the rebound assembly may include a bearing plate 623 and a first limiting plate 624, the first limiting plate 624 is formed with an inverted L-shaped or similar inverted L-shaped first limiting groove 6241, the first limiting plate 624 includes a limiting portion 6242 corresponding to the first limiting groove 6241, and a support is provided between the bearing plate 623 and the first limiting plate 624. The first elastic member 6244 is provided with a limit block 6214 on the button body 6212, and the button body 6212 is covered with a second elastic member 6215. Specifically, when the button 621 is not pressed, the limit block 6214 is located above the limit portion 6242; when the button 621 is pressed, the second elastic member 6215 is compressed and deformed, and the limit block 6214 acts on the limit portion 6242, causing the first elastic member 6244 to deform, and the first limit plate 624 slides relative to the supporting plate 623 (for example, Figure 23 The first limiting plate 624 slides relative to the supporting plate 623 under the action of the first elastic member 6244 (for example, Figure 23When the other key 621 is pressed, the first limiting plate 624 slides relative to the bearing plate 623 again (for example, slides to the right), and the limiting block 6214 of the limited key 621 is disengaged from the corresponding limiting portion 6242, and the key 621 can rebound under the action of the second elastic member 6215. Figure 23 When the other key 621 is pressed, the first limiting plate 624 slides relative to the bearing plate 623 again (for example, slides to the right), and the limiting block 6214 of the limited key 621 is disengaged from the corresponding limiting portion 6242, and the key 621 can rebound under the action of the second elastic member 6215.

[0069] In the embodiment, the first limiting plate 624 is provided with an inclined surface 6243 corresponding to the first limiting groove 6241, which can be used to guide the limiting block 6214, so as to facilitate the limiting block 6214 to slide down along the inclined surface 6243 to be clamped into the first limiting groove 6241, and the process of pressing the key 621 can be more smooth.

[0070] In the embodiment, the first limiting plate 624 is further formed with a containing groove 6245, and the bearing plate 623 is provided with an abutting column 6231, both the first elastic member 6244 and the abutting column 6231 are contained in the containing groove 6245, and the abutting column 6231 is used to abut against the first elastic member 6244, so as to make the structure and position of the first elastic member 6244 more stable during compression.

[0071] Referring to Figure 20 In another specific embodiment, the first elastic member 6246 can also be arranged at one end of the first limiting plate 624 and abut against the inner wall of the bearing plate 623, so as to provide elastic force for the first limiting plate 624, and the structure is simpler and easier to manufacture.

[0072] In the embodiment, the bearing plate 623 can be further formed with a second limiting groove 6232, and the limiting block 6214 can be contained in the second limiting groove 6232, which is used to limit the key 621 in the vertical plane perpendicular to the direction in which the key 621 is pressed (the horizontal plane shown in the figure). Figure 20 For example, the second limiting groove 6232 can limit the key 621 in the extension direction of the bearing plate 623 (the left-right direction shown in the figure). Figure 20

[0073] In the embodiment, the key body 6212 is in a cylindrical shape, and the second limiting groove 6232 can also limit the rotation of the key body 6212, so as to avoid that the rotation of the key body 6212 causes the limiting block 6214 to be disengaged from the corresponding first limiting groove 6241, and further causes the limiting block 6214 to be unable to be pressed into the first limiting groove 6241, which can improve the reliability of the rebound assembly.

[0074] ​In other embodiments, corresponding limiting grooves and limiting protrusions (not shown in the figure) can be respectively provided on the button shell 626 supporting the button body 6212 and the button body 6212 to limit the button 621 on the vertical plane along the direction in which it is pressed.

[0075] In other embodiments, the button body 6212 may be directly configured as a rectangular column or other special-shaped columns to prevent the button body 6212 from rotating, which is not limited here.

[0076] See also Figure 20 In another specific embodiment, the rebound assembly may further include a plurality of second limiting plates 625, which are sequentially arranged along the extension direction of the first limiting plate 624. A third limiting groove 6251 may be formed between two adjacent second limiting plates 625 to limit the position of the button 621 along a vertical plane in the direction in which the button 621 is pressed. Specifically, after the button 621 is pressed, the limiting block 6214 acts on two adjacent second limiting plates 625 to push the two adjacent second limiting plates 625 toward both sides of the limiting block 6214. The other second limiting plates 625 approach and abut against each other to form the third limiting groove 6251 that accommodates the limiting block 6214, thereby limiting the position of the limiting block 6214.

[0077] In this embodiment, an inclined surface 6252 can be formed on the second limiting plate 625, and the inclined surface 6252 can be used to guide the limiting block 6214, so that the limiting block 6214 can slide down along the inclined surface 6252 to be stuck in the third limiting groove 6251, which can make the process of pressing the button 621 smoother.

[0078] See also Figure 21 In other embodiments, the number of resistors 622 can be multiple, and multiple resistors 622 form multiple resistor groups. Each resistor group includes at least one resistor 622. The multiple resistor groups are spaced apart in the vertical direction along the extension direction of the first limiting plate 624. The conductive portion 6211 can turn on each corresponding resistor 622 in the multiple resistor groups, and then the corresponding resistor 622 can be connected to the magnetic induction mechanism 300 as a load to achieve a change in resistance.

[0079] See also Figure 1 、 Figures 22 to 24 The fourth embodiment of the braking device 10 of the present application includes a shaft 100, a shell 200, a magnetic induction mechanism 300 and an adjustment mechanism 630. The structures of the shaft 100, the shell 200 and the magnetic induction mechanism 300 refer to the second embodiment of the braking device 10 mentioned above and are not repeated here. The adjustment mechanism 630 is connected to the magnetic induction mechanism 300 for adjusting the magnitude of the resistance.

[0080] In the embodiment, the adjusting mechanism 630 comprises a resistance body 631, an abutting piece 632 in sliding abutment with the resistance body 631, and an adjusting piece 633 connected with the abutting piece 632, the resistance body 631 and the adjusting piece 633 are respectively electrically connected with the magnetic sensing mechanism 300, the stepless adjustment of the resistance value of the resistance body 631 is realized by setting the integral resistance body 631 and the sliding abutment of the abutting piece 632 with the resistance body 631, and then the stepless adjustment of the resistance is realized, and the application range of the brake device 10 is further expanded.

[0081] In the embodiment, the brake device 10 further comprises a support piece 634, the resistance body 631 is arranged on the support piece 634, the support piece 634 is formed with an opening 6341 for the wires connected with the resistance body 631 and the magnetic sensing mechanism 300 to pass through, which can avoid the interference of the wires with the resistance body 631 and even cause short circuit and the like, and improve the safety of the brake device 10.

[0082] In the embodiment, the brake device 10 further comprises a limiting piece 635 arranged corresponding to the opening 6341 for limiting the abutting piece 632, so that the abutting piece 632 can keep abutting with the resistance body 631 and avoid disengaging from the resistance body 631 to cause the circuit to be disconnected and the like, and improve the reliability of the brake device 10.

[0083] In the embodiment, the support piece 634 can be arranged in a tubular shape, and the resistance body 631 is arranged in a fan ring shape and is arranged around the support piece 634, so that the structure of the adjusting mechanism 630 is compact and the occupied space is reduced.

[0084] In the embodiment, the abutting piece 632 is an elastic sheet and can elastically abut with the resistance body 631, so that the abutting piece 632 can keep abutting with the resistance body 631 and is not easy to disengage.

[0085] In the embodiment, the abutting piece 632 is arranged in extension along the circumference of the support piece 634, which is more conducive to keeping the abutting piece 632 abutting with the resistance body 631 during the rotation relative to the resistance body 631, has higher reliability, and is more convenient for the abutting piece 632 to rotate relative to the resistance body 631.

[0086] In the embodiment, the adjusting piece 633 can comprise a knob arranged at one end of the support piece 634 and capable of rotating relative to the support piece 634 to drive the abutting piece 632 to slide relative to the resistance body 631 to realize the adjustment of the resistance value of the resistance connected with the magnetic sensing mechanism 300, the adjustment of the adjusting mechanism 630 is realized by setting the knob, the adjusting operation is more convenient, the occupied space of the knob is smaller, and the overall structure of the adjusting mechanism 630 is more compact.

[0087] In this embodiment, the braking device 10 may further include a shell 636, which is sleeved on the outside of the support member 634. The knob is set on the shell 636. The end surface of the shell 636 where the knob is provided is formed with a through hole 6361. The knob is connected to the abutment member 632 through a connecting member 637 that passes through the through hole 6361, which can avoid interference between the connecting member 637 and other components, making the rotation process of the knob smoother.

[0088] In this embodiment, the braking device 10 may further include a cover (not shown in the figure), which is provided on the outer shell 636 to protect the adjustment mechanism 630 and prevent dust, and also make the appearance of the braking device 10 more regular.

[0089] See also Figure 25 and Figure 26 In other embodiments, the number of resistor bodies 631 can be multiple, such as two, three, etc., and multiple resistor bodies 631 are connected in parallel. The connecting member 637 is correspondingly connected with multiple abutting members 632, which are used to abut with the corresponding resistor bodies 631 respectively to achieve stepless adjustment of the resistance value.

[0090] See also Figure 1 、 Figure 27 and Figure 28 The fifth embodiment of the braking device 10 of the present application includes a shaft 100, a shell 200, a magnetic induction mechanism 300 and an adjustment mechanism 640. The structures of the shaft 100, the shell 200 and the magnetic induction mechanism 300 refer to the second embodiment of the braking device 10 mentioned above and are not repeated here. The adjustment mechanism 640 is connected to the magnetic induction mechanism 300 for adjusting the magnitude of the resistance.

[0091] In this embodiment, the adjustment mechanism 640 includes a resistor body 641, an abutment member 642 that slides and abuts against the resistor body 641, and an adjustment member 643 connected to the abutment member 642. The abutment member 642 is electrically connected to one end of the magnetic induction mechanism 300, and one end of the resistor body 641 is electrically connected to one end of the magnetic induction mechanism 300. By setting an integrated resistor body 641 and slidingly abutting against the resistor body 641 through the abutment member 642, stepless adjustment of the resistance value connected to the resistor body 641 can be achieved, thereby achieving stepless adjustment of the resistance, further expanding the scope of application of the braking device 10.

[0092] In other embodiments, the resistor body 641 may also have two ends electrically connected to the two ends of the magnetic induction mechanism 300 respectively, which is not limited here.

[0093] In this embodiment, the braking device 10 may further include a shell 644, which is used to form an accommodating space for accommodating the resistor body 641. A slide groove 6441 is formed on the shell 644. The adjusting member 643 includes a handle. The adjusting member is arranged outside the shell 644 and is connected to the abutment 642 through a connecting rod 645 that passes through the slide groove 6441, so that the adjusting member 643 can be subjected to force to drive the abutment 642 to move along the slide groove 6441, thereby realizing the adjustment of the resistance value of the resistor body 641. The adjustment of the adjusting mechanism 640 is realized by setting a sliding adjusting member 643, which can be convenient for users to hold, making the adjustment operation more convenient.

[0094] In this embodiment, the abutment member 642 can be electrically connected to the magnetic induction mechanism 300 through a conductive slide (not shown in the figure) provided in the housing 644, or can be directly electrically connected to the magnetic induction mechanism 300 through a wire, which is not limited here.

[0095] See also Figure 26 、 Figure 29 and Figure 30 The number of resistor bodies 641 can be multiple, for example, three, and the adjusting member 643 can be connected to three abutting members 642, each abutting member 642 abuts against the corresponding resistor body 641 to achieve stepless adjustment of the resistance value.

[0096] See also Figure 1 、 Figures 31 to 33 The sixth embodiment of the braking device 10 of the present application includes a shaft 100, a shell 200, a magnetic induction mechanism 300 and an adjustment mechanism 650. The structures of the shaft 100, the shell 200 and the magnetic induction mechanism 300 refer to the second embodiment of the braking device 10 mentioned above and are not repeated here. The adjustment mechanism 650 is connected to the magnetic induction mechanism 300 for adjusting the magnitude of the resistance.

[0097] In this embodiment, the adjustment mechanism 650 includes a resistor body 651, an abutting member 652 for abutting the resistor body 651, and an adjustment member connected to the abutting member 652. The abutting member 652 is electrically connected to one end of the magnetic induction mechanism 300, and one end of the resistor body 651 is electrically connected to one end of the magnetic induction mechanism 300. By setting an integrated resistor body 651 and abutting the resistor body 651 through the abutting member 652, the size of the resistance value connected to the resistor body 651 is changed. Compared with the method of setting multiple resistors and conducting through contact points, in this embodiment, since uninterrupted arc-shaped contacts can be set on the periphery of the resistor body 651, the abutting area of ​​the abutting member 652 and the resistor body 651 is larger, the reliability is higher, and it is convenient to subsequently change the size of the resistance value connected to the resistor body 651. For example, the size of the resistance value connected to the resistor body 651 can be changed by changing the position of the abutting point between the abutting member 652 and the resistor body 651.

[0098] In other embodiments, the resistor body 651 may also have two ends electrically connected to the two ends of the magnetic induction mechanism 300 respectively, which is not limited here.

[0099] In this embodiment, the adjusting member includes at least one button 653, at least one button 653 is connected to the corresponding abutment 652, the abutment 652 is electrically connected to one end of the magnetic induction mechanism 300, and one end of the resistor body 651 is electrically connected to one end of the magnetic induction mechanism 300, so that when at least one button 653 is pressed, the abutment 652 can be connected to the resistor body 651, so that at least part of the corresponding resistor body 651 is electrically connected to the magnetic induction mechanism 300 as a load, thereby realizing a change in resistance. By setting the button 653 to realize the adjustment of the adjusting mechanism 650, the tactile feel of the adjustment can be made more obvious and the gear adjustment can be more reliable.

[0100] In other embodiments, the two ends of the resistor body 651 may also be electrically connected to the two ends of the magnetic induction mechanism 300 respectively, which is not limited here.

[0101] In this embodiment, the braking device 10 further includes a support member 654, which is tubular and the resistor body 651 is fan-shaped. The resistor body 651 is wound around the support member 654, so that the structure of the adjustment mechanism 650 is compact and the occupied space is reduced.

[0102] In this embodiment, the support member 654 is formed with an opening 6541 for allowing the wire connecting the resistor body 651 and the magnetic induction mechanism 300 to pass through, which can avoid interference between the wire and the resistor body 651 or even cause a short circuit, thereby improving the safety of the braking device 10.

[0103] In this embodiment, the adjustment mechanism 650 may further include a rebound component, which includes a first limiting plate 655 arranged on the support member 654. The limiting and rebound of the button 653 are achieved through the first limiting groove 6551 on the first limiting plate 655, the first elastic member 6552 between the support member 654 and the first limiting plate 655, the limiting block 6531 set on the button 653, and the second elastic member 6532 sleeved on the button 653. For details, please refer to the rebound component in the third embodiment of the above-mentioned braking device 10, which will not be repeated here.

[0104] See also Figure 34 In other embodiments, the number of resistor bodies 651 can be multiple, for example, three, and the button 653 is correspondingly connected to multiple abutment members 652, which are used to abut against the corresponding resistor bodies 651 respectively to achieve resistance adjustment.

[0105] See also Figure 1 、 Figure 35 and Figure 36The seventh embodiment of the brake device 10 of the present application comprises a shaft body 100, a housing 200, a magnetic sensing mechanism 300, and an adjusting mechanism 660. The structure of the shaft body 100, the housing 200, and the magnetic sensing mechanism 300 is described above in the second embodiment of the brake device 10, and will not be repeated here. The adjusting mechanism 660 is connected to the magnetic sensing mechanism 300 and is used to adjust the resistance.

[0106] In the present embodiment, the adjusting mechanism 660 comprises a resistance body 661, an abutting piece 662 abutting against the resistance body 661, and an adjusting piece connected to the abutting piece 662. The abutting piece 662 is electrically connected to one end of the magnetic sensing mechanism 300, and one end of the resistance body 661 is electrically connected to one end of the magnetic sensing mechanism 300. The resistance value of the resistance body 661 is changed by setting the integral resistance body 661 and abutting the abutting piece 662 against the resistance body 661. The abutting area of the abutting piece 662 and the resistance body 661 is larger, and the reliability is higher. Moreover, it is convenient to change the resistance value of the resistance body 661 in the future, for example, by changing the position of the abutting place of the abutting piece 662 and the resistance body 661 to change the resistance value of the resistance body 661.

[0107] In the present embodiment, the adjusting piece comprises at least two keys 663, and the at least two keys 663 are respectively connected to corresponding abutting pieces 662. The at least two keys 663 are respectively provided with a lead-through part 6631. The brake device further comprises a connecting part 6611 electrically connected to one end of the magnetic sensing mechanism 300. The resistance body 661 is electrically connected to one end of the magnetic sensing mechanism 300, so that when one of the at least two keys 663 is pressed, the lead-through part 6631 can be in conduction with the connecting part 6611. The adjusting of the adjusting mechanism 660 is realized by setting the keys 663, which can make the touch feeling of the adjusting more obvious and the gear adjusting more reliable.

[0108] In other embodiments, the two ends of the resistance body 661 can also be respectively electrically connected to the two ends of the magnetic sensing mechanism 300, which is not limited here.

[0109] In the present embodiment, the at least two keys 663 can be arranged along a straight line, and the resistance body 661 is arranged in a straight line. In other embodiments, the at least two keys 663 can also be arranged along a curve or other line type, which is not limited here.

[0110] In other embodiments, the adjusting member can only include one button 663, the button 663 is provided with a lead-through portion 6631, the brake device 10 further includes a connecting portion 6611, the lead-through portion 6631 is electrically connected to one end of the magnetic sensing mechanism 300, and the two ends of the electric resistance body 661 are respectively electrically connected to the two ends of the magnetic sensing mechanism 300, so that when at least one button 663 is pressed, the lead-through portion 6631 can be in conduction with the connecting portion 6611, and then at least part of the corresponding electric resistance body 661 can be connected as a load to the magnetic sensing mechanism 300, so as to realize the change of resistance.

[0111] In the embodiment, the brake device 10 can further include a rebound assembly, which can act on at least two buttons 663 respectively, so that when one of the at least two buttons 663 is pressed, the other buttons 663 can be popped up. The rebound assembly can include a bearing plate 664 and a first limiting plate 665, and the specific structure thereof is described in the rebound assembly of the third embodiment of the brake device 10 described above, which will not be described here.

[0112] Referring to Figure 37 In other embodiments, the number of electric resistance bodies 661 can be multiple, for example, three or the like, and the multiple electric resistance bodies 661 are arranged at intervals. The button 663 is correspondingly connected with multiple abutting members 662, which are used to abut with the corresponding electric resistance bodies 661 respectively, so as to realize the adjustment of resistance value.

[0113] Referring to Figure 1 , Figure 38 and Figure 39 The eighth embodiment of the brake device 10 of the application includes a shaft body 100, a housing 200, a magnetic sensing mechanism 300 and an adjusting mechanism 670. The structures of the shaft body 100, the housing 200 and the magnetic sensing mechanism 300 are described in the second embodiment of the brake device 10 described above, which will not be described here. The adjusting mechanism 670 is connected with the magnetic sensing mechanism 300, and is used to adjust the size of resistance.

[0114] In the embodiment, the adjusting mechanism 670 can include a sensitive resistance 671, and the two ends of the sensitive resistance 671 are respectively electrically connected to the two ends of the magnetic sensing mechanism 300. The sensitive resistance 671 can be a pressure-sensitive resistance, a light-sensitive resistance, a humidity-sensitive resistance, a magnetic-sensitive resistance or a force-sensitive resistance, which can change the resistance value according to the change of received voltage, light, humidity, magnetic field intensity or force, so as to realize the change of resistance. By setting the sensitive resistance 671 to realize the adjustment of the adjusting mechanism 670, the structure of the adjusting mechanism 670 can be more simple, easy to manufacture, and occupy less space, so that the structure of the brake device 10 is more compact.

[0115] In this embodiment, the adjustment mechanism 670 may further include a housing 672 having heat dissipation holes 6721 formed thereon for dissipating heat from the sensitive resistor 671 to avoid problems such as unstable resistance of the sensitive resistor 671 due to excessive temperature rise.

[0116] In this embodiment, the sensitive resistor 671 can be a force-sensitive resistor, and a pressing plate 6722 with a certain elasticity can be formed between multiple heat dissipation holes 6721, so that the pressing plate 6722 can receive force and deform to transfer the force to the sensitive resistor 671, thereby realizing the resistance adjustment of the sensitive resistor 671.

[0117] See also Figure 1 and Figure 40 The ninth embodiment of the braking device 10 of the present application includes a shaft 100, a shell 200, a magnetic induction mechanism 300, a rectifier mechanism 700 and an adjustment mechanism 680. The structures of the shaft 100, the shell 200 and the magnetic induction mechanism 300 refer to the second embodiment of the braking device 10 mentioned above and are not repeated here. The rectifier mechanism 700 is electrically connected to the magnetic induction mechanism 300 for rectifying the current of the magnetic induction mechanism 300. The adjustment mechanism 680 is connected to the magnetic induction mechanism 300 for adjusting the magnitude of the resistance. By setting the rectifier mechanism 700, the multi-conductor output of the magnetic induction mechanism 300 can be rectified, the structure of the adjustment mechanism 680 can be simplified, and the overall structure of the braking device 10 is simpler and more compact, and occupies less space.

[0118] In this embodiment, the magnetic induction mechanism 300 leads out at least two wires, and the rectifier mechanism 700 is electrically connected to the at least two wires to rectify the current on the at least two wires. The first end of the rectifier mechanism 700 is electrically connected to the first end of the adjustment mechanism 680, and the second end of the rectifier mechanism 700 is electrically connected to the second end of the adjustment mechanism 680, for transmitting the rectified current to the adjustment mechanism 680, so that the resistance value connected to the rectifier mechanism 700 can be adjusted through the adjustment mechanism 680.

[0119] In this embodiment, the rectifier mechanism 700 may include two first diodes 710 and two second diodes 720, the first ends of the two first diodes 710 are electrically connected to each other and electrically connected to the first end of the adjustment mechanism 680, the second ends of the two first diodes 710 are electrically connected to the two wires respectively, the first ends of the two second diodes 720 are electrically connected to the two wires respectively, and the second ends of the two second diodes 720 are electrically connected to each other and electrically connected to the second end of the adjustment mechanism 680, thereby realizing the rectification of the current output by the magnetic induction mechanism 300, for example, the alternating current output by the magnetic induction mechanism 300 can be rectified into direct current, which can make the adjustment process of the adjustment mechanism 680 more stable.

[0120] See also Figure 41 and Figure 42 In another specific embodiment, the rectifying mechanism 700 can further include three first diodes 710 and three second diodes 720, the first ends of the three first diodes 710 are electrically connected to each other and to the first end of the adjusting mechanism 680, the second ends of the three first diodes 710 are respectively electrically connected to the three wires, the first ends of the three second diodes 720 are respectively electrically connected to the three wires, and the second ends of the three second diodes 720 are electrically connected to each other and to the second end of the adjusting mechanism 680, thereby achieving rectification of the current output by the magnetic sensing mechanism 300, for example, rectifying the three-phase output of the magnetic sensing mechanism 300 into a two-phase output, and the adjustment can be achieved by a resistor, thereby simplifying the structure of the adjusting mechanism 680.

[0121] In other embodiments, the rectifying mechanism 700 can further include more than three first diodes 710 and second diodes 720 to rectify more than three-phase output of the magnetic sensing mechanism 300, which is not limited herein.

[0122] In the present embodiment, the adjusting mechanism 680 includes a sensitive resistor, the first end of the rectifying mechanism 700 is connected to the first end of the sensitive resistor, and the second end of the rectifying mechanism 700 is connected to the second end of the sensitive resistor, and the sensitive resistor can change the resistance value, thereby achieving the change of the resistance, and the adjustment of the adjusting mechanism 680 is achieved by setting the sensitive resistor.

[0123] In other embodiments, the adjusting mechanism 680 can further include an adjusting member and a resistor, for example, the second embodiment, the third embodiment of the brake device 10 described above; or the adjusting mechanism 680 can further include a resistor body, an abutting member in sliding abutment with the resistor body, and an adjusting member connected to the abutting member, for example, the fourth embodiment, the fifth embodiment, the sixth embodiment, and the seventh embodiment of the brake device 10 described above, which will not be repeated herein.

[0124] Referring to Figure 1 , Figure 43 and Figure 44The tenth embodiment of the brake device 10 includes a shaft body 100, a shell 200, a magnetic sensing mechanism 300, an adjusting mechanism 690, a control mechanism 810, and a power storage mechanism 820. The structure of the shaft body 100, the shell 200, and the magnetic sensing mechanism 300 is described above in the first embodiment of the brake device 10, which is not repeated here. The adjusting mechanism 690 is connected to the magnetic sensing mechanism 300 and is used to adjust the resistance. The control mechanism 810 is connected to the adjusting mechanism 690 and the power storage mechanism 820, respectively. The control mechanism 810 is used to control the adjusting mechanism 690 to adjust the resistance and can deliver the current to the power storage mechanism 820 to store when the current is greater than or equal to the current threshold. By setting the control mechanism 810, the automatic adjustment of the adjusting mechanism 690 can be realized, which further improves the intelligent degree of the brake device 10, makes the application range of the brake device 10 wider, and stores the power through the power storage mechanism 820. In the case that the power provided by the magnetic sensing mechanism 300 is insufficient, the current can be provided to the control mechanism 810, which makes the brake device 10 more reliable and safer.

[0125] In this embodiment, a shell 691 can also be provided, and the adjusting mechanism 690, the control mechanism 810, and the power storage mechanism 820 can be arranged in the shell 691.

[0126] In this embodiment, the control mechanism 810 includes a main controller 811 and a power controller 812. The main controller 811 is connected to the adjusting mechanism 690. The power controller 812 is connected to the main controller 811 and is connected to the magnetic sensing mechanism 300 and the power storage mechanism 820, respectively. The power controller 812 is used to receive the current provided by the magnetic sensing mechanism 300 and deliver at least part of the current to the main controller 811 to maintain the normal operation of the main controller 811, and deliver another part of the current to the power storage mechanism 820 to store the power when the current is greater than or equal to the current threshold.

[0127] In this embodiment, the brake device 10 can also include a speed detection mechanism (not shown in the figure). The speed detection mechanism is connected to the control mechanism 810 through a wire 813. The speed detection mechanism is used to detect the rotational speed of the shell 200. The control mechanism 810 is used to control the adjusting mechanism 690 to adjust the resistance according to the rotational speed, which can make the brake device 10 more intelligent.

[0128] In this embodiment, the speed detection mechanism can be arranged on the shell 200 or the brake device 10. The speed detection mechanism can be a pressure sensor, an image sensor, an optical sensor, etc. The rotational speed of the shell 200 can be detected by the received pressure, picture, video, or light, etc.

[0129] In the embodiment, the adjusting mechanism 690 can include a resistance body and an abutting piece (not shown in the figure) in sliding abutment with the resistance body, the first end of the magnetic induction mechanism 300 is connected with the first end of the resistance body, and the second end of the magnetic induction mechanism 300 is connected with the abutting piece; or the second end of the magnetic induction mechanism 300 is connected with the abutting piece and the second end of the resistance body, and the control mechanism 810 controls the abutting piece to slide relative to the resistance body to change the resistance value of the resistance body connected with the magnetic induction mechanism 300. Specifically, the structure of the adjusting mechanism 690 can refer to the fourth, fifth, sixth and seventh embodiments of the brake device 10 described above, and will not be repeated here.

[0130] In other embodiments, the adjusting mechanism 690 can further include at least one resistance and an adjusting piece, the first end of the at least one resistance is connected with the first end of the magnetic induction mechanism 300, and the adjusting piece is connected with the second end of the magnetic induction mechanism 300, and the control mechanism 810 controls the adjusting piece to be connected with the first end or the second end of the at least one resistance to change the total resistance value of the resistance connected with the magnetic induction mechanism 300. Specifically, the structure of the adjusting mechanism 690 can refer to the second and third embodiments of the brake device 10 described above, and will not be repeated here.

[0131] In other embodiments, the adjusting mechanism 690 can further include a sensitive resistance and an adjusting piece (not shown in the figure), both ends of the sensitive resistance are connected with both ends of the magnetic induction mechanism 300, and the control mechanism 810 controls the adjusting piece to change the resistance value of the sensitive resistance connected with the magnetic induction mechanism 300.

[0132] Referring to Figure 45 and Figure 46 In other embodiments, the brake device 10 can further include a rectifying mechanism 700 connected with the magnetic induction mechanism 300 and the adjusting mechanism 690, for rectifying the current output by the magnetic induction mechanism 300. The structure of the rectifying mechanism 700 can refer to the ninth embodiment of the brake device 10 described above, and will not be repeated here.

[0133] In the embodiment, the rectifying mechanism 700 rectifies at least two wires introduced from the magnetic induction mechanism 300 and then introduces two wires, so as to be electrically connected with both ends of the adjusting mechanism 690. In other embodiments, the rectifying mechanism 700 can not be provided, and three groups of resistances, resistance bodies or sensitive resistances can be directly arranged on the adjusting mechanism 690 to be electrically connected with three wires introduced from the magnetic induction mechanism 300. For details, please refer to the embodiments of the brake device 10 described above, and will not be repeated here.

[0134] Referring to Figure 1 , Figure 2 and Figure 47The eleventh embodiment of the brake device 10 of the application comprises a shaft body 100, a housing 200, a magnetic sensing piece 310 and a magnet assembly 320. The housing 200 is sleeved on the shaft body 100 and coaxially arranged with the shaft body 100. The housing 200 can rotate relative to the shaft body 100. The magnetic sensing piece 310 is provided with a coil 311 thereon. The magnet assembly 320 comprises a plurality of magnets which are arranged at intervals along the circumference of the shaft body 100. One of the magnetic sensing piece 310 and the magnet assembly 320 is connected with the shaft body 100, and the other is connected with the housing 200. The magnetic sensing piece 310 and / or the magnet assembly 320 are detachably connected with the shaft body 100 or the housing 200. When the housing 200 rotates relative to the shaft body 100, the coil 311 can cut the magnetic field formed by the magnet assembly 320, thereby generating a resistance force in the opposite direction of the rotation direction of the housing 200 or the shaft body 100. The size of the resistance force can be changed by replacing the magnetic sensing piece 310 and / or the magnet assembly 320, thereby adapting to the needs of different users and different environments, and making the brake device 10 more widely applicable.

[0135] In the embodiment, the brake device 10 further comprises a carrier 330 which is detachably connected to the inner side of the housing 200. The inner side of the carrier 330 is formed with a plurality of mounting grooves 331. The plurality of magnets of the magnet assembly 320 are arranged in the plurality of mounting grooves 331, respectively. By replacing the carrier 330 and the magnet assembly 320 carried on the carrier 330, the number, size and arrangement structure of the magnets in the magnet assembly 320 can be changed, so as to change the magnetic field generated by the magnet assembly 320, and further change the resistance force generated by the interaction between the magnetic sensing piece 310 and the magnet assembly 320, thereby realizing the adjustment of the resistance force.

[0136] In the embodiment, the carrier 330 is provided with a first limiting part, and the housing 200 is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the carrier 330, so as to avoid the rotation of the carrier 330 relative to the housing 200 during the rotation of the housing 200, making the magnetic field generated by the magnet assembly 320 more stable, and further making the resistance force generated by the interaction between the magnetic sensing piece 310 and the magnet assembly 320 more stable.

[0137] In the embodiment, the first limiting part can be a limiting groove 332, and the second limiting part can be a limiting protrusion 210. The limiting protrusion 210 and the limiting groove 332 extend along the axial direction of the housing 200, so as to limit the carrier 330 along the circumferential direction of the shaft body 100. The structure is simple, easy to manufacture, and has high reliability.

[0138] In other embodiments, the first limiting part can also be a limiting protrusion, and the second limiting part can be a corresponding limiting groove, which is not limited herein.

[0139] In the embodiment, the brake device 10 can further include a fixing ring 340, which is arranged at one end of the bearing 330 and covers the magnet assembly 320 to be clamped in the mounting groove 331, so as to limit the magnet assembly 320 in the axial direction of the shaft body 100 and avoid the magnets of the magnet assembly 320 from falling out of the mounting groove 331.

[0140] Referring to Figure 1 、 Figure 2 and Figure 48 , the twelfth embodiment of the brake device 10 includes a shaft body 100, a housing 200, a magnetic sensing piece 310 and a magnet assembly 320. The housing 200 is arranged outside the shaft body 100 and coaxially arranged with the shaft body 100. The housing 200 can rotate relative to the shaft body 100. The magnetic sensing piece 310 is provided with a coil 311 thereon. The magnet assembly 320 includes a plurality of magnets arranged at intervals in the circumferential direction of the shaft body 100. One of the magnetic sensing piece 310 and the magnet assembly 320 is connected with the shaft body 100, and the other is connected with the housing 200. The magnetic sensing piece 310 and / or the magnet assembly 320 are detachably connected with the shaft body 100 or the housing 200. When the housing 200 rotates relative to the shaft body 100, the coil 311 can cut the magnetic field formed by the magnet assembly 320, so as to generate a resistance force opposite to the rotating direction of the housing 200. The size of the resistance force can be changed by replacing the magnetic sensing piece 310 and / or the magnet assembly 320, so as to adapt to the needs of different users and different environments, and make the brake device 10 more widely applicable.

[0141] In the embodiment, the brake device 10 further includes a fixing piece 110, which is fixedly arranged on the shaft body 100. The magnetic sensing piece 310 is detachably connected with the fixing piece 110, so that the magnetic sensing piece 310 can be detached from the shaft body 100 for replacement. The number, size and arrangement structure of the magnets in the magnet assembly 320 can be changed to change the magnetic field generated by the magnet assembly 320, and then change the resistance force generated by the interaction between the magnetic sensing piece 310 and the magnet assembly 320, so as to realize the adjustment of the resistance force.

[0142] In the embodiment, the fixing piece 110 is provided with a first connecting part, and the magnetic sensing piece 310 is provided with a second connecting part. The first connecting part and the second connecting part cooperate to connect the fixing piece 110 and the magnetic sensing piece 310. This can avoid the magnetic sensing piece 310 from rotating relative to the shaft body 100 during the rotation of the housing 200, so that the interaction between the magnetic sensing piece 310 and the magnet assembly 320 is more stable, and then the generated resistance force is more stable.

[0143] Referring to Figure 49In the embodiment, the first connecting part can be the connecting groove 111, the second connecting part can be the connecting protrusion 314, and the first connecting hole 315 is formed on the connecting protrusion 314, and the second connecting hole 112 is formed on the connecting groove 111, so that the connecting protrusion 314 and the connecting groove 111 can be fixed by the connecting piece (not shown in the figure) penetrating through the first connecting hole 315 and the second connecting hole 112 after being connected, which is simple in structure, easy to manufacture, and high in reliability.

[0144] In the embodiment, the opening direction of the connecting groove 111 can be parallel to the circumferential direction of the shaft body 100, so that the magnetic sensing piece 310 can be buckled with the fixing piece 110 after being sleeved on the shaft body 100.

[0145] In other embodiments, the opening direction of the connecting groove 111 can also be parallel to the axial direction of the shaft body 100, so that the magnetic sensing piece 310 can be directly buckled with the fixing piece 110 along the axial direction of the shaft body 100.

[0146] In the embodiment, the first connecting hole 315 and the second connecting hole 112 can be threaded holes, and the connecting piece can be a screw.

[0147] In other embodiments, the first connecting part can also be a connecting protrusion, and the second connecting part can also be a corresponding connecting groove, which is not limited here.

[0148] In other embodiments, the fixing piece 110 and the magnetic sensing piece 310 can also be connected by a buckle or other detachable mechanism, which is not limited here.

[0149] In other embodiments, the magnetic sensing piece 310 and the magnet assembly 320 can also be detachable structures, and the specific structure is described in the eleventh and twelfth embodiments of the brake device 10, which is not limited here.

[0150] Referring to Figure 1 and Figure 2 The first embodiment of the wheel body assembly includes the brake device 10, and the structure of the brake device 10 is described in the above embodiments of the brake device 10, which will not be repeated here.

[0151] The shell 200 of the brake device 10 is arranged in a circular ring shape and can be used as a wheel body of the wheel body assembly. The brake device 10 can directly generate resistance on the wheel body to achieve the braking effect. Since the braking force is related to the rotation of the shell 200, rather than friction braking, the brake device 10 will not produce sudden stop effect, has higher safety, can reduce wear and tear, and improve the service life of the brake device 10. In addition, the brake device 10 is simple in structure and easy to manufacture.

[0152] Referring to Figure 50The second embodiment of the wheel body assembly includes the brake device 10 and the wheel body 20, the wheel body 20 is connected with the shell 200 or the shaft body 100 of the brake device 10, the brake device 10 generates resistance to the wheel body through the shell 200 or the shaft body 100, so as to realize the brake effect.

[0153] In the embodiment, the brake device 10 and the wheel body 20 can be detachably connected, so that the user can choose whether to install the brake device 10 according to the need, and the application range is wider.

[0154] In the embodiment, the brake device 10 can be directly connected with the wheel body 20 through the connecting rod 201, so as to directly realize the brake effect on the wheel body 20.

[0155] In other embodiments, the brake device 10 can also be connected with the wheel body 20 through a transmission device (not shown in the figure), so as to adapt to different brake requirements and expand the application range.

[0156] Referring to Figure 51 The first embodiment of the walker includes the brake device 10 and the main body frame 30, the brake device 10 is rotationally connected to the bottom of the main body frame 30, and is used for moving with the main body frame 30 and / or driving the main body frame 30 to move. In the embodiment, the number of brake devices 10 is 2, and the brake devices 10 serve as front wheels of the walker. The walker further includes two universal wheels 40 as rear wheels. By taking the brake devices 10 as the front wheels, the steering operation of the walker can be more labor-saving. By taking the universal wheels 40 as the rear wheels, the universal wheels 40 can be flexibly rotated with the steering of the main body frame 30.

[0157] In other embodiments, the two brake devices 10 can also serve as the rear wheels (not shown in the figure), and the two universal wheels 40 can serve as the front wheels, so as to avoid the problem that the resistance generated by the brake device 10 is too large to cause the walker to overturn or roll over.

[0158] In other embodiments, the number of brake devices 10 can be 4, that is, the brake devices 10 serve as the front wheels of the walker and also serve as the rear wheels of the walker, so as to further improve the brake effect.

[0159] In the embodiment, when the shell 200 of the brake device 10 rotates relative to the shaft body 100, the coil 311 can cut the magnetic field formed by the magnet assembly 320, so as to generate resistance in the opposite direction of the rotation direction of the shell 200, thereby playing a brake role on the brake device 10. Since the brake force is related to the rotation of the shell 200, but not friction braking, the brake device 10 does not have the effect of sudden stop, has higher safety, can reduce wear and tear, and has a long service life. In addition, the brake device 10 has a simple structure and is easy to manufacture.

[0160] Referring to Figure 52The second embodiment of the walker of the present application includes a braking device 10 and a main frame 50. The braking device 10 is rotatably connected to the bottom of the main frame 50 and is used to move with the main frame 50 and / or drive the main frame 50 to move.

[0161] In this embodiment, the braking device 10 can be used as both the front wheel and the rear wheel of the walker. For details, please refer to the first embodiment of the walker mentioned above, which will not be described again here.

[0162] In this embodiment, when the shell 200 of the braking device 10 rotates relative to the shaft 100, the coil 311 can cut the magnetic field formed by the magnet assembly 320, thereby generating resistance in the opposite direction of rotation of the shell 200, which can brake the braking device 10. Moreover, since its braking force is related to the rotation of the shell 200 rather than friction braking, it will not produce an emergency stop effect, which is safer and can also reduce wear and increase the service life of the braking device 10. At the same time, its structure is simple and easy to prepare.

[0163] In other embodiments, the braking device 10 may also be applied to other types of walking aids, which is not limited here.

[0164] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A braking device, characterized in that: include: Axis; A housing is sleeved outside the shaft and coaxially arranged with the shaft, and the housing can rotate relative to the shaft; A magnetic induction mechanism, comprising a magnetic induction element and a magnet assembly, wherein the magnet assembly comprises a plurality of magnets spaced apart along the circumference of the shaft, the magnetic induction element comprises a main body and a plurality of mounting portions spaced apart along the outer circumference of the main body, a coil being wound around the mounting portion, the maximum width of the coil on the mounting portion along the circumference of the shaft being greater than the width of the magnet along the circumference of the shaft; one of the magnetic induction element and the magnet assembly is connected to the shaft, and the other is connected to the housing, so that when the housing rotates relative to the shaft, the coil can cut the magnetic field formed by the magnet assembly, thereby generating resistance opposite to the rotation direction of the housing or the shaft; an adjusting mechanism, connected to the magnetic induction mechanism, for adjusting the magnitude of the resistance; knob; a first support tube, wherein the adjustment mechanism includes an adjustment member and at least one resistor, the adjustment member is electrically connected to the magnetic induction mechanism and is provided with a first connection portion, one end of at least one of the resistors is provided with a second connection portion, and the at least one resistor is provided on the first support tube; a second support tube, the second support tube being connected to the knob, the second support tube being nested with the first support tube, the adjustment member being disposed on the second support tube so as to allow the adjustment member to rotate with the knob, thereby electrically connecting the first connection portion to the second connection portion; In which, the adjusting member is arranged in a ring shape and can rotate relative to the first support tube. The first connecting part is a groove formed on the outer periphery of the adjusting member. The outer peripheral surface of the adjusting member is insulated except for the groove, and the groove is conductive. The second connecting part includes a contact member and a first elastic member. The contact member is electrically connected to the resistor. The first elastic member is used to provide elastic force to the contact member so that the contact member abuts against the outer periphery of the adjusting member.

2. The braking device according to claim 1, characterized in that An annular groove is formed on the outer periphery of the adjusting member, the first connecting portion is sunken relative to the annular groove, and the end portion of the abutting member is arranged in an arc-shaped protrusion.

3. The braking device according to claim 2, characterized in that The braking device further includes a shell, the adjusting member and the resistor are arranged in the shell, an opening is formed at the end of the shell away from the knob, and the opening is polygonal. A limiting member and a second elastic member are provided at the end of the second support tube away from the knob, and the second elastic member is used to provide elastic force to the limiting member so that the limiting member can abut against the shell during the rotation of the second support tube.

4. The braking device according to claim 1, wherein: The braking device further includes a first support tube, the number of the resistors is multiple, and the multiple resistors form multiple resistor groups, each resistor group includes at least three resistors, and at least three resistors in each resistor group are located on the same plane perpendicular to the axial direction of the first support tube. The multiple resistor groups are arranged at intervals along the axial direction of the first support tube, the number of the adjustment members is multiple, and the number is the same as the number of the resistor groups, and the multiple adjustment members are arranged at intervals along the axial direction of the first support tube and correspond one-to-one to the resistor groups respectively.

5. A wheel assembly, characterized in that: include: The braking device according to any one of claims 1 to 4, wherein the housing is arranged in an annular shape and is used as a wheel body; or The braking device and wheel body according to any one of claims 1 to 4, wherein the wheel body is connected to the housing or the shaft body.

6. A walking aid comprising a main frame and the wheel assembly according to claim 5, wherein the wheel assembly is rotatably connected to the bottom of the main frame.

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