TWM515874U - Wheelchair with rehabilitation function and transmission device thereof - Google Patents

Description

Wheelchair with rehabilitation function and its transmission

This creation mainly discloses a transmission device for a wheelchair, especially a transmission device for a wheelchair having a rehabilitation function.

Please refer to the patent "Missing Wheelchair Structure for Simple Sports" in our Patent No. M482385, which is a wheelchair structure for easy movement. It is equipped with a two-foot pedal, at least one transmission mechanism and a clutch and a control switch for a wheelchair. . A crank is connected to one side of the pedal, and the other end of the crank is worn by the front wheel frame, and the transmission mechanism includes a pedal action group, a clutch action group and a rear wheel action group, and the pedal action group is disposed on the front wheel frame to engage the crank end. The pedal pedal is used to link the crank and the pedal action group, and the clutch action group is disposed outside the front wheel frame, and includes a rotating disk, a clutch disk that can engage the rotating disk, and a rear wheel action group that connects the rotating disk and the rear wheel. Cooperating, the clutch is disposed on the front wheel frame and includes a lever. One end of the lever is connected to the clutch disc for moving the clutch disc to engage the rotating disc, and the control opening relationship includes a pressing rod, a slider, a linkage, and linkage. One end of the piece is connected to the slider, and the other end is connected with the lever, and the pressing rod is used to interlock the slider to drive the linkage to move, for pulling the pressure bar to move the slider, the linkage, and then the lever to move the clutch disk to engage the rotating disk The clutch disc and the rotating disc are synchronously rotatable, and the power of the rear wheel and the pedal action group is connected, so that the patient can step on the pedal independently to provide the effect of the intended bicycle riding exercise.

However, the wheelchair with the above structure adopts a chain-driven manner, and the chain needs to be lubricated with oil to operate smoothly. If the wheelchair is in use, the occupant's clothes are too close to the chain to be easily contaminated with oil, or even caught by the chain. Danger.

In view of the above-mentioned lack of conventional structure, the present author has devised a wheelchair having a rehabilitation function that overcomes all of the disadvantages of the above-described conventional structure.

The main purpose of the present invention is to provide a wheelchair comprising a chair and two transmissions, the chair comprising a frame, two rear wheels and two pedals, the rear wheel is located at the a rear end of the frame and the two rear wheels are respectively located on two sides of the frame in a horizontal direction, the pedal is located at a front end of the frame and the two pedals are respectively located on two sides of the frame in a horizontal direction, and the transmission is connected to the a frame, the two transmissions respectively corresponding to the two rear wheels and the two pedals, the transmission device comprising a housing, a driving shaft, a first transmission shaft, a second transmission shaft and a passive shaft The driving shaft is rotatably disposed in the housing with the first virtual rotating shaft as an axis, and one end of the driving shaft is synchronously rotatably coupled to the rear wheel, and the first transmission shaft is driven by the driving shaft a second virtual rotating shaft is disposed in the housing rotatably relative to the housing, the second virtual rotating shaft intersecting the first virtual rotating shaft, the first transmission shaft being different from one end of the driving shaft The first drive shaft is provided with a first latching portion on the first reference surface, and the first latching portion has a non-circular cross section along the radial direction of the second virtual rotating shaft. The second transmission shaft is rotatably disposed in the housing with the second virtual rotating shaft as an axis, and the second transmission shaft is disposed at an end of the first transmission shaft different from the driving shaft, the second transmission a drive is provided at one end of the shaft adjacent to the first drive shaft The movable shaft is driven by the second transmission shaft and is rotatably disposed in the housing with the third virtual rotating shaft as an axis. The third virtual rotating shaft and the first virtual rotating shaft are parallel to each other. a third virtual rotating shaft intersecting the second virtual rotating shaft, one end of the passive shaft is synchronously rotatably connected to the pedal, the transmission device has a sliding member, and the sliding member is synchronously rotated with the second driving shaft a second clamping portion is disposed at an end of the sliding portion adjacent to the first transmission shaft, and the second clamping portion has a non-circular cross section along a radial direction of the second virtual rotating shaft. The second latching portion is selectively detached from the first latching portion, and the sliding member is movable along the second virtual rotating shaft axially relative to the second transmission shaft between the transmission position and the release position, the slip The second latching portion is engaged with the first latching portion, the first driving shaft drives the sliding member to rotate synchronously, and when the sliding member releases the position, the second latching portion is disengaged from the a first latching portion, the first drive shaft cannot drive the slip Turning, riding the wheelchair occupant moves, the foot pedal can bring the rider's legs and activities, achieve the effect of rehabilitation.

The sliding member has a step shape along a radial outer peripheral edge of the second virtual rotating shaft, and an outer peripheral edge of the sliding member is provided with an abutting surface extending radially along the second virtual rotating shaft, the abutting surface is adjacent to the In the direction of the first transmission shaft, the transmission device has an operating rod, and the two ends of the operating rod are pivotally disposed on the housing, one end of the operating rod is disposed on the housing, and the other end of the operating rod is protruded Outside the housing, one end of the operating rod in the housing abuts against the abutment surface of the sliding member.

The operating rod is U-shaped adjacent to one end of the sliding member and spans both sides of the sliding member along the radial direction of the second virtual rotating shaft.

The driving section has a non-circular cross section along the radial direction of the second virtual rotating shaft, the driving section of the second transmission shaft does not contact the first transmission shaft, and the sliding member is disposed along the axial direction of the second virtual rotating shaft. Insert a hole having a non-circular cross section along a radial direction of the second virtual rotating shaft and a shape of the insertion hole corresponding to a shape of the driving segment, wherein the driving segment is inserted into the insertion hole.

The outer circumference of the driving segment along the radial direction of the second virtual rotating shaft is composed of two curved surfaces and two planes, and the two curved surfaces are centered on the second virtual rotating shaft and opposite to each other, and the two planes are respectively connected to the Two arcuate faces that are opposite each other and parallel to each other.

The first transmission shaft is different from the one end of the driving shaft, and the positioning groove is located at a center of the first transmission shaft and extends along the second virtual rotating shaft axially adjacent to the driving shaft, and the positioning groove is along the The second virtual rotating shaft has a circular cross section in a radial direction, and a second positioning shaft adjacent to the first driving shaft is provided with a positioning section, and the positioning section is located at the center of the second transmission shaft and is adjacent to the driving section. One side of the transmission shaft has a circular cross section along a radial direction of the second virtual rotating shaft, and a positioning section of the second transmission shaft is inserted into the positioning groove of the first transmission shaft.

The first latching portion has a groove shape and extends from the first reference surface along the second virtual rotating shaft axial direction toward the driving shaft, and the first latching portion penetrates the radial direction of the second virtual rotating shaft The two sides of the first transmission shaft are recessed on a side of the first latch portion adjacent to the driving shaft, and the second latch portion is convex and adjacent to the second virtual rotating shaft A direction of the drive shaft extends, and the second latch portion extends in a radial direction of the second virtual rotating shaft to both sides of the second transmission shaft.

The housing includes a first component, a second component, a third component, and a fourth component, the second component being coupled to the first component, the third component being coupled to the second component being different from the One side of the first component, the side of the third component adjacent to the second component is provided with a class-shaped accommodating space, the bottom surface of the accommodating space faces the second component, and the fourth component is connected to the third component The component is different from one side of the second component, and the driving shaft is disposed in the first component of the housing, the first transmission shaft Provided in the second component of the housing, an end of the first transmission shaft adjacent to the driving shaft is located in the first component, and the first transmission shaft protrudes from the second component at an end different from the driving shaft. The second transmission shaft is disposed in the third component of the housing, the passive shaft is disposed in the fourth component of the housing, and the sliding component is disposed in the accommodating space, between the two ends of the operating lever The third member is pivotally disposed on the housing, and one end of the operating rod is disposed in the receiving space of the housing.

A latching flange is protruded from a bottom surface of the accommodating space, and the sliding member is provided with a latching edge at one end of the first driving shaft, and the latching edge is axially along the second virtual rotating shaft Extending in a direction adjacent to the first transmission shaft, the sliding member is movable between a transmission position, a release position, and a locking position, wherein the sliding flange of the housing is engaged with the slip when the sliding member is locked The latching edge of the piece, the second drive shaft cannot rotate relative to the housing.

When the slider releases the position, the second drive shaft is free to rotate relative to the housing.

The housing has a protrusion protruding from an outer surface of the second component, the operating rod being different from the one end of the sliding member and the protruding column of the housing corresponding to each other, the transmission device has an elastic member and a a spring, the elastic member is sleeved on the second transmission shaft, one end of the elastic member abuts against the sliding member is different from one end of the first transmission shaft, and the other end of the elastic member abuts against the housing The elastic member is capable of pushing the sliding member to move in a direction close to the first transmission shaft, and the two ends of the spring respectively abut against the protruding post and the operating rod.

The driving shaft is different from the one end of the rear wheel and is provided with a first helical gear. The first transmission shaft is synchronously rotated adjacent to one end of the driving shaft, and a second helical gear is disposed. The first helical gears mesh with each other, and the second transmission shaft is different from one of the first transmission shafts The third helical gear is synchronously rotated, and the passive shaft is provided with a fourth helical gear that is synchronously rotated with one end of the pedal. The fourth helical gear and the third helical gear mesh with each other.

The second virtual rotating shaft and the first virtual rotating shaft are perpendicular to each other, the third virtual rotating shaft and the second virtual rotating shaft are perpendicular to each other, and the third virtual rotating shaft is located on the same plane as the first virtual rotating shaft.

The transmission is located between the two rear wheels, and the housing has a zigzag-shaped hollow rod shape.

The main purpose of the invention is to provide a transmission device for a wheelchair having a rehabilitation function, and to provide a transmission including a housing, a driving shaft, a first transmission shaft, a second transmission shaft, a passive shaft and a sliding member. The driving shaft is rotatably disposed in the housing with the first virtual rotating shaft as an axis, and the first driving shaft is driven by the driving shaft to rotate relative to the housing with a second virtual rotating shaft as an axis. Positioned in the housing, the second virtual rotating shaft intersects the first virtual rotating shaft, the first driving shaft is different from the one end of the driving shaft, and a first reference surface is disposed, the first driving shaft is at the first The reference surface is provided with a first latching portion, the first latching portion is non-circular in a radial direction along the second virtual rotating shaft, and the second driving shaft can be opposite to the shell with the second virtual rotating shaft as an axis The second transmission shaft is disposed at an end of the first transmission shaft that is different from the driving shaft, and a driving section is disposed at an end of the second transmission shaft adjacent to the first transmission shaft. The passive shaft is subjected to the second transmission The third virtual rotating shaft and the first virtual rotating shaft are parallel to each other, and the third virtual rotating shaft intersects with the second virtual rotating shaft, and the third virtual rotating shaft is rotatably disposed in the housing with the third virtual rotating shaft as an axis. The sliding member is sleeved on the outer circumference of the driving segment synchronously with the second transmission shaft, and a second clamping portion is disposed at an end of the sliding member adjacent to the first transmission shaft, the second clamping portion a section along a radial direction of the second virtual rotating shaft is non-circular, and the second latching portion is selectively detachably engaged with the first latching portion, the slip The second movable shaft is axially movable relative to the second transmission shaft between the transmission position and the release position. When the sliding member is in the transmission position, the second clamping portion is engaged with the first locking portion. The first transmission shaft drives the sliding member to rotate synchronously. When the sliding member releases the position, the second latching portion is disengaged from the first latching portion, and the first transmission shaft cannot drive the sliding member to rotate, the occupant When the wheelchair is equipped with the transmission, the pedal of the wheelchair can move the occupant's feet and legs to achieve a rehabilitation effect.

The sliding member has a step shape along a radial outer peripheral edge of the second virtual rotating shaft, and an outer peripheral edge of the sliding member is provided with an abutting surface extending radially along the second virtual rotating shaft, the abutting surface is adjacent to the In the direction of the first transmission shaft, the transmission device has an operating rod, and the two ends of the operating rod are pivotally disposed on the housing, one end of the operating rod is disposed on the housing, and the other end of the operating rod is protruded Outside the housing, one end of the operating rod in the housing abuts against the abutment surface of the sliding member.

The operating rod is U-shaped adjacent to one end of the sliding member and spans both sides of the sliding member along the radial direction of the second virtual rotating shaft.

The driving section has a non-circular cross section along the radial direction of the second virtual rotating shaft, the driving section of the second transmission shaft does not contact the first transmission shaft, and the sliding member is disposed along the axial direction of the second virtual rotating shaft. a jack having a non-circular cross section along a radial direction of the second virtual rotating shaft and a shape of the jack corresponding to the shape of the driving section, the driving section being inserted into the jack.

The outer circumference of the driving segment along the radial direction of the second virtual rotating shaft is composed of two curved surfaces and two planes, and the two curved surfaces are centered on the second virtual rotating shaft and opposite to each other, and the two planes are respectively connected to the Two arcuate faces that are opposite each other and parallel to each other.

The first transmission shaft is different from the one end of the driving shaft, and the positioning groove is located at a center of the first transmission shaft and extends along the second virtual rotating shaft axially adjacent to the driving shaft, and the positioning groove is along the The second virtual rotating shaft has a circular cross section in a radial direction, and a second positioning shaft adjacent to the first driving shaft is provided with a positioning section, and the positioning section is located at the center of the second transmission shaft and is adjacent to the driving section. One side of the transmission shaft has a circular cross section along a radial direction of the second virtual rotating shaft, and a positioning section of the second transmission shaft is inserted into the positioning groove of the first transmission shaft.

The first latching portion has a groove shape and extends from the first reference surface along the second virtual rotating shaft axial direction toward the driving shaft, and the first latching portion penetrates the radial direction of the second virtual rotating shaft The two sides of the first transmission shaft are recessed on a side of the first latch portion adjacent to the driving shaft, and the second latch portion is convex and adjacent to the second virtual rotating shaft A direction of the drive shaft extends, and the second latch portion extends in a radial direction of the second virtual rotating shaft to both sides of the second transmission shaft.

The housing includes a first component, a second component, a third component, and a fourth component, the second component being coupled to the first component, the third component being coupled to the second component being different from the One side of the first component, the side of the third component adjacent to the second component is provided with a class-shaped accommodating space, the bottom surface of the accommodating space faces the second component, and the fourth component is connected to the third component The component is different from a side of the second component, the driving shaft is disposed in the first component of the housing, the first transmission shaft is disposed in the second component of the housing, and the first transmission shaft is adjacent to the active component One end of the shaft is located in the first component, the first drive shaft is different from the one end of the drive shaft and protrudes from the second component, and the second drive shaft is disposed in the third component of the housing, the passive shaft The sliding member is disposed in the accommodating space, and the two ends of the operating rod are pivotally disposed on the third component of the housing, and one end of the operating rod is disposed on the shell Within the body's accommodation space.

A latching flange is protruded from a bottom surface of the accommodating space, and the sliding member is provided with a latching edge at one end of the first driving shaft, and the latching edge is axially along the second virtual rotating shaft Extending in a direction adjacent to the first transmission shaft, the sliding member is movable between a transmission position, a release position, and a locking position, wherein the sliding flange of the housing is engaged with the slip when the sliding member is locked The latching edge of the piece, the second drive shaft cannot rotate relative to the housing.

When the slider releases the position, the second drive shaft is free to rotate relative to the housing.

The housing has a protrusion protruding from an outer surface of the second component, the operating rod being different from the one end of the sliding member and the protruding column of the housing corresponding to each other, the transmission device has an elastic member and a a spring, the elastic member is sleeved on the second transmission shaft, one end of the elastic member abuts against the sliding member is different from one end of the first transmission shaft, and the other end of the elastic member abuts against the housing The elastic member is capable of pushing the sliding member to move in a direction close to the first transmission shaft, and the two ends of the spring respectively abut against the protruding post and the operating rod.

One end of the driving shaft is synchronously rotatably provided with a first helical gear, and the first transmission shaft is synchronously rotated adjacent to one end of the driving shaft to be provided with a second helical gear, and the second helical gear and the first helical gear are mutually The second transmission shaft is provided with a third helical gear that is synchronously rotated from one end of the first transmission shaft. One end of the passive shaft is synchronously rotated to be provided with a fourth helical gear. The fourth helical gear is disposed. The third helical gears mesh with each other.

The second virtual rotating shaft and the first virtual rotating shaft are perpendicular to each other, the third virtual rotating shaft and the second virtual rotating shaft are perpendicular to each other, and the third virtual rotating shaft is located on the same plane as the first virtual rotating shaft.

The casing has a zigzag-shaped hollow rod shape.

Other objects, advantages and novelty of the present invention will become more apparent from the following detailed description.

10‧‧‧ Wheelchair

20‧‧‧ Chairs

21‧‧‧Frame

22‧‧‧ Rear wheel

23‧‧‧ pedal

30‧‧‧Transmission

31‧‧‧Shell

311‧‧‧ first part

312‧‧‧ second part

313‧‧‧ Third part

314‧‧‧Fourth part

315‧‧‧Bump

316‧‧‧ accommodating space

317‧‧‧Carrier flange

32‧‧‧Active shaft

321‧‧‧First helical gear

33‧‧‧First drive shaft

331‧‧‧second helical gear

332‧‧‧ first datum

333‧‧‧ First card department

334‧‧‧ positioning slot

34‧‧‧Second drive shaft

341‧‧‧Drive segment

342‧‧‧ curved surface

343‧‧‧ plane

344‧‧‧ positioning segment

345‧‧‧third helical gear

35‧‧‧Passive axis

351‧‧‧4th helical gear

36‧‧‧Slipper

361‧‧‧ jack

362‧‧‧Second Card Ministry

363‧‧‧ 掣 掣

364‧‧‧Abutment

37‧‧‧Operator

38‧‧‧Flexible parts

39‧‧‧ Spring

90‧‧‧ Controller

91‧‧‧Steel cable

L1‧‧‧The first virtual shaft

L2‧‧‧Second virtual shaft

L3‧‧‧ third virtual shaft

Figure 1: This is a three-dimensional appearance of a wheelchair with a rehabilitation function.

Figure 2: An exploded perspective view of a wheelchair transmission with a rehabilitation function.

Figure 3: A cross-sectional structural view of a wheelchair transmission device with a rehabilitation function.

Figure 4 is a cross-sectional structural view of another perspective view of a wheelchair transmission having a rehabilitation function.

Figure 5 is a partially enlarged cross-sectional structural view of a wheelchair transmission device having a rehabilitation function.

Figure 6 is a partially enlarged cross-sectional structural view of another perspective view of a wheelchair transmission device having a rehabilitation function.

Figure 7 is a cross-sectional structural view of a driving section of a wheelchair transmission device having a rehabilitation function.

Fig. 8 is a diagram showing the state of use of the wheelchair sliding member with the rehabilitation function in the transmission position.

Fig. 9 is a diagram showing the state of use of the wheelchair sliding member with the rehabilitation function in the transmission position.

Fig. 10 is a view showing the state of use of the wheelchair sliding member having the rehabilitation function in the release position.

Figure 11 is a diagram showing the state of use of the wheelchair sliding member with the rehabilitation function in the release position.

Fig. 12 is a view showing the state of use of the wheelchair sliding member having the rehabilitation function in the locked position.

Figure 13 is a diagram showing the state of use of the wheelchair slide member having the rehabilitation function in the locked position.

The techniques, means, and effects of the present invention are described in detail with reference to the accompanying drawings.

Referring to Fig. 1, a three-dimensional appearance of a wheelchair having a rehabilitation function is created. The present invention includes a chair 20 and two transmissions 30; wherein: the chair 20 includes a frame 21, two rear wheels 22 and two pedals 23, the rear wheels 22 being located behind the frame 21. The two rear wheels 22 are respectively located on both sides of the frame 21 in the horizontal direction, the pedal 23 is located at the front end of the frame 21, and the two pedals 23 are respectively located on both sides of the frame 21 in the horizontal direction.

Please continue to refer to FIG. 2 to FIG. 6 , which are an exploded perspective view, a cross-sectional structural view and a partially enlarged cross-sectional structural view of a transmission device for a wheelchair having a rehabilitation function. The transmission device 30 is coupled to the frame 21, and the transmission device 30 is located between the two rear wheels 22, and the two transmission devices 30 correspond to the two rear wheels 22 and the two pedals 23, respectively.

The transmission device 30 includes a housing 31, a drive shaft 32, a first drive shaft 33, a second drive shaft 34 and a driven shaft 35. The housing 31 has a zigzag-shaped hollow rod shape. The body 31 includes a first member 311, a second member 312, a third member 313 and a fourth member 314. The second member 312 is coupled to the first member 311, and the housing 31 is coupled to the second member A protrusion 315 is protruded from an outer surface of the 312, the third component 313 is connected to a side of the second component 312 that is different from the first component 311, and the third component 313 is adjacent to a side of the second component 312. A framing space 316 is defined. The bottom surface of the accommodating space 316 faces the second member 312 and protrudes from a latching flange 317. The fourth component 314 is connected to the third component 313. One side of the second component 312.

The driving shaft 32 is rotatably disposed in the first member 311 of the housing 31 with the first virtual rotating shaft L1 as an axis. The driving shaft 32 extends along the axial direction of the first virtual rotating shaft L1. One end of the driving shaft 32 is synchronously rotatably coupled to the rear wheel 22. The driving shaft 32 is provided with a first helical gear 321 which is rotated in a manner different from one end of the rear wheel 22. The driving shaft 32 has a round rod shape.

The first transmission shaft 33 is driven by the driving shaft 32 and is rotatably disposed in the second member 312 of the housing 31 with the second virtual rotating shaft L2 as an axis. The first transmission shaft 33 is adjacent to the first transmission shaft 33. One end of the driving shaft 32 is located in the first component 311. The first transmission shaft 33 is different from the one end of the driving shaft 32 and protrudes from the second component 312. The second virtual rotating shaft L2 and the first virtual rotating shaft L1 intersects, the second virtual rotating shaft L2 and the first virtual rotating shaft L1 are perpendicular to each other in this embodiment, and the first transmission shaft 33 extends along the axial direction of the second virtual rotating shaft L2, and the first transmission shaft 33 is adjacent to the One end of the driving shaft 32 is synchronously rotated to provide a second helical gear 331, and the second helical gear 331 and the first helical gear 321 are engaged with each other.

The first transmission shaft 33 is different from the one end of the driving shaft 32, and a first reference surface 332 is disposed. The first transmission shaft 33 is provided with a first locking portion 333 on the first reference surface 332. The latching portion 333 has a groove shape and extends from the first reference surface 332 along the axial direction of the second virtual rotating shaft L2 toward the driving shaft 32. The first latching portion 333 is radial along the second virtual rotating shaft L2. The first hook portion 333 penetrates the two sides of the first transmission shaft 33 in the radial direction of the second virtual rotating shaft L2 in this embodiment.

The first transmission shaft 33 is different from the driving shaft 32 at one end thereof, and is provided with a positioning slot 334 located at the center of the first transmission shaft 33 and axially adjacent to the driving shaft 32 along the second virtual rotating shaft L2. The direction of the positioning groove 334 is circular along a radial direction of the second virtual rotating shaft L2. In the embodiment, the positioning groove 334 is recessed on a side of the first latching portion 333 adjacent to the driving shaft 32. The first transmission shaft 33 has a round rod shape.

Please continue to refer to FIG. 7 , which is a cross-sectional structural view of a driving section of a transmission device for a wheelchair having a rehabilitation function. The second transmission shaft 34 is rotatably disposed in the third member 313 of the housing 31 with the second virtual rotating shaft L2 as an axis. The second transmission shaft 34 is along the second virtual rotating shaft L2. The second transmission shaft 34 is disposed at an end of the first transmission shaft 33 that is different from the driving shaft 32. The second transmission shaft 34 is provided with a driving section 341 adjacent to one end of the first transmission shaft 33. The driving section 341 has a non-circular cross section along the radial direction of the second virtual rotating shaft L2. The driving section 341 of the second transmission shaft 34 does not contact the first transmission shaft 33. The driving section 341 is along the second virtual rotating shaft. The outer circumference of the L2 radial direction is composed of two curved surfaces 342 and two planes 343, which are centered on the second virtual rotating shaft L2 and are opposite to each other, and the two flat surfaces 343 are respectively connected to the two arcs Face 342, the two planes 343 are opposite each other and parallel to each other.

A positioning section 344 is disposed at an end of the second transmission shaft 34 adjacent to the first transmission shaft 33. The positioning section 344 is located at the center of the second transmission shaft 34 and is located at a side of the driving section 341 adjacent to the first transmission shaft 33. The positioning section 344 has a circular cross section along the radial direction of the second virtual rotating shaft L2. The positioning section 344 of the second transmission shaft 34 is inserted into the positioning slot 334 of the first transmission shaft 33. The second transmission shaft 34 phase A third helical gear 345 is disposed synchronously with one end of the first transmission shaft 33.

The passive shaft 35 is driven by the second transmission shaft 34 and is rotatably disposed in the fourth member 314 of the housing 31 with the third virtual rotating shaft L3 as an axis. The third virtual rotating shaft L3 is The first virtual rotating shaft L1 is parallel to each other, the third virtual rotating shaft L3 intersects with the second virtual rotating shaft L2, and the third virtual rotating shaft I3 and the second virtual rotating shaft L2 are perpendicular to each other in the embodiment and the first The third virtual rotating shaft L3 is located on the same plane as the first virtual rotating shaft L1. The passive shaft 35 extends along the axial direction of the third virtual rotating shaft L3. One end of the driven shaft 35 is synchronously rotatably connected to the pedal 23, and the passive shaft 35 is different from the one end of the pedal 23 in synchronization with a fourth helical gear 351. The fourth helical gear 351 and the third helical gear 345 mesh with each other, and the passive shaft 35 has a round rod shape.

The transmission device 30 further has a sliding member 36, an operating rod 37, an elastic member 38 and a spring 39. The sliding member 36 is sleeved on the outer circumference of the driving portion 341 in synchronization with the second transmission shaft 34. The sliding member 36 is disposed in the accommodating space 316, and the sliding member 36 is axially movable relative to the second transmission shaft 34 along the second virtual rotating shaft L2 between the driving position, the releasing position and the locking position. Moving, the sliding member 36 is disposed along the axial direction of the second virtual rotating shaft L2 with a receiving hole 361. The cross section of the receiving hole 361 along the radial direction of the second virtual rotating shaft L2 is non-circular and the shape of the receiving hole 361 The driving segments 341 are inserted into the insertion holes 361 in correspondence with the shapes of the driving segments 341.

A second latching portion 362 is disposed at an end of the sliding member 36 adjacent to the first transmission shaft 33. The second latching portion 362 has a convex shape and is axially adjacent to the first transmission along the second virtual rotating shaft L2. The direction of the shaft 33 extends, the cross section of the second latching portion 362 along the radial direction of the second virtual rotating shaft L2 is non-circular, and the diameter of the second latching portion 362 along the second virtual rotating shaft L2 in this embodiment To the two sides of the second transmission shaft 34, the second latching portion 362 is selectively detachably engaged with the first latching portion 333.

The sliding member 36 is different from the first transmission shaft 33 at one end thereof with a latching edge 363 extending along the axial direction of the second virtual rotating shaft L2 adjacent to the first transmission shaft 33. . The sliding member 36 has a stepped shape along the outer peripheral edge of the second virtual rotating shaft L2. The outer peripheral edge of the sliding member 36 is provided with an abutting surface 364 extending radially along the second virtual rotating shaft L2. The abutment 364 faces in a direction adjacent to the first transmission shaft 33.

A third member 313 of the housing 31 is disposed between the two ends of the operating rod 37. One end of the operating rod 37 is disposed in the receiving space 316 of the housing 31 and the other end of the operating rod 37 is protruded. Outside the housing 31, one end of the operating rod 37 in the housing 31 abuts against the abutting surface 364 of the sliding member 36. The operating rod 37 is U-shaped and spans adjacent to one end of the sliding member 36. The sliding member 36 is disposed on both sides of the second virtual rotating shaft L2 in the radial direction, and the operating lever 37 is different from the one end of the sliding member 36 and the boss 315 of the housing 31 corresponds to each other.

The elastic member 38 is sleeved on the second transmission shaft 34. One end of the elastic member 38 abuts against the sliding member 36 at one end of the first transmission shaft 33 and the other end of the elastic member 38 abuts against In the housing 31, the elastic member 38 can push the sliding member 36 to move toward the first transmission shaft 33. The two ends of the spring 39 abut against the protruding post 315 and the operating rod 37, respectively.

Please refer to FIG. 8 and FIG. 9 for the state of use of the wheelchair sliding member with the rehabilitation function in the transmission position. When the caregiver wants to switch the position of the sliding member 36, the controller 90 can be operated to pull the cable 91 to cause the cable 91 to drive the operating lever 37, and the sliding member 36 will be pushed by the operating lever 37 to move the position to release the cable. After the pulling force of 91, the operating lever 37 is pushed back to the original position by the spring 39, and the sliding member 36 is pushed back to the transmission position by the elastic member 38.

When the sliding member 36 is in the driving position, the second latching portion 362 is latched on the first latching portion 333, and the first driving shaft 33 drives the sliding member 36 to rotate synchronously. When the caregiver pushes the chair 20 to move the rear wheel 22, the pedal 23 will be driven by the passive shaft 35 to rotate relative to the seat 20, and the pedal 23 is stepped on the pedal 23 by the occupant's foot. It can drive the occupant's feet and legs to achieve the effect of rehabilitation.

Please refer to FIG. 10 and FIG. 11 for the use state of the wheelchair sliding member with the rehabilitation function in the release position. When the sliding member 36 is released from the position, the second latching portion 362 is disengaged from the first latching portion 333, and the first transmission shaft 33 cannot rotate the sliding member 36. The second transmission shaft 34 is opposite to the housing. 31 free to rotate. At this time, if the caregiver pushes the chair 20 to move, the pedal 23 will not interlock with the rear wheel 22, and the pedal 23 can swing freely relative to the seat 20.

Please refer to FIG. 12 and FIG. 13 for the use state of the wheelchair sliding member with the rehabilitation function in the locked position. When the sliding member 36 is in the locked position, the latching flange 317 of the housing 31 is latched on the latching recess 363 of the sliding member 36, and the second transmission shaft 34 cannot be rotated relative to the housing 31. At this time, if the caregiver pushes the chair 20 to move, the pedal 23 cannot swing relative to the seat 20.

As far as the above is concerned, it can be concluded that this creation has the following advantages:

1. A wheelchair having a rehabilitation function, wherein the wheelchair includes a chair and two transmissions, the chair includes a frame, two rear wheels and two pedals, the rear wheel is located behind the frame And the two rear wheels are respectively located on two sides of the frame in the horizontal direction, the pedal is located at the front end of the frame and the two pedals are respectively located on two sides of the frame in the horizontal direction, and the transmission device is connected to the frame, The two transmissions respectively correspond to the two rear wheels and the two pedals, and the transmission device comprises a housing, a driving shaft, a first transmission shaft, a second transmission shaft and a passive shaft. The shaft is rotatably disposed in the housing with the first virtual rotating shaft as an axis, and one end of the driving shaft is synchronously rotatably coupled to the rear wheel, and the first transmission shaft is driven by the driving shaft to be a second a virtual rotating shaft is disposed in the housing rotatably relative to the housing, the second virtual rotating shaft intersecting the first virtual rotating shaft, and the first driving shaft is different from the driving shaft and has a first reference at one end of the driving shaft The first shaft is provided with a first engaging portion to the first reference plane, the first engaging portion along the second dummy The second transmission shaft is rotatably disposed in the housing with the second virtual shaft as an axis, and the second transmission shaft is disposed on the first transmission shaft. Different from the one end of the driving shaft, the second driving shaft is provided with a driving section adjacent to one end of the first transmission shaft, and the driving shaft is driven by the second driving shaft to be opposite to the shell with a third virtual rotating shaft as an axis The third virtual rotating shaft and the first virtual rotating shaft are parallel to each other, the third virtual rotating shaft intersects with the second virtual rotating shaft, and one end of the driven shaft is synchronously rotatably connected to the pedal. The transmission device has a sliding member, and the sliding member is sleeved on the outer circumference of the driving segment synchronously with the second transmission shaft, and the second sliding member is disposed adjacent to the end of the first transmission shaft. a second portion of the second latching portion is non-circular in a radial direction along the second virtual rotating shaft, and the second latching portion is selectively detachably engaged with the first latching portion, and the sliding member can be along the The second virtual rotating shaft is axially transmitted relative to the second transmission shaft Moving between the position and the release position, the second latching portion is engaged with the first latching portion when the sliding member is in the driving position, the first driving shaft drives the sliding member to rotate synchronously, and the sliding member releases In the position, the second latching portion is disengaged from the first latching portion, the first transmission shaft cannot drive the sliding member to rotate, and the pedal can drive the occupant's foot and leg when the occupant moves in the wheelchair. Conduct activities to achieve the effect of rehabilitation.

2. The transmission device for a wheelchair having a rehabilitation function, wherein the transmission device comprises a housing, a driving shaft, a first transmission shaft, a second transmission shaft, a passive shaft and a sliding member, The driving shaft is rotatably disposed in the housing with the first virtual rotating shaft as an axis. The first driving shaft is driven by the driving shaft and is rotatably disposed relative to the housing with a second virtual rotating shaft as an axis. In the housing, the second virtual rotating shaft intersects the first virtual rotating shaft, and the first driving shaft is different from the one end of the driving shaft, and a first reference surface is disposed on the first reference surface. There is a first latching portion, and the first latching portion has a non-circular cross section along the radial direction of the second virtual rotating shaft, The second transmission shaft is rotatably disposed in the housing with the second virtual rotating shaft as an axis, and the second transmission shaft is disposed at an end of the first transmission shaft different from the driving shaft, the second A driving section is disposed at an end of the driving shaft adjacent to the first transmission shaft, and the driving shaft is driven by the second driving shaft and is rotatably disposed in the housing with the third virtual rotating shaft as an axis, the third The virtual rotating shaft and the first virtual rotating shaft are parallel to each other, the third virtual rotating shaft intersects with the second virtual rotating shaft, and the sliding member is sleeved on the outer circumference of the driving segment synchronously with the second driving shaft, the sliding One end adjacent to the first transmission shaft is provided with a second latching portion, the second latching portion is non-circular in a radial direction along the second virtual rotating shaft, and the second latching portion is selectively disengaged from the ground card. In the first latching portion, the sliding member is movable along the second virtual rotating shaft axially relative to the second transmission shaft between a transmission position and a release position, and the second card is in the position of the sliding member The first drive shaft is engaged with the first drive shaft The sliding member rotates synchronously. When the sliding member releases the position, the second latching portion is disengaged from the first latching portion, the first transmission shaft cannot drive the sliding member to rotate, and the occupant rides the transmission. When the wheelchair of the device is moved, the pedal of the wheelchair can move the occupant's foot and leg to achieve a rehabilitation effect.

However, the above description is only for the preferred embodiment of the present invention, and the scope of the present invention may not be limited thereto, so that the numerical value is changed or the replacement of the equivalent elements, or the equivalent of the patent application scope of the present invention. Changes and modifications should remain within the scope of this new patent.

10‧‧‧ Wheelchair

20‧‧‧ Chairs

21‧‧‧Frame

22‧‧‧ Rear wheel

23‧‧‧ pedal

30‧‧‧Transmission

31‧‧‧Shell

311‧‧‧ first part

312‧‧‧ second part

313‧‧‧ Third part

314‧‧‧Fourth part

315‧‧‧Bump

37‧‧‧Operator

39‧‧‧ Spring

90‧‧‧ Controller

91‧‧‧Steel cable

Claims (28)

A wheelchair with rehabilitation function includes: a chair comprising a frame, two rear wheels and two pedals, the rear wheel is located at a rear end of the frame and the two rear wheels are respectively located The frame is located on both sides in the horizontal direction, the pedal is located at the front end of the frame and the two pedals are respectively located on two sides of the frame in the horizontal direction; two transmissions are connected to the frame, the two transmissions Corresponding to the two rear wheels and the two pedals respectively, the transmission device comprises a housing, a driving shaft, a first transmission shaft, a second transmission shaft and a passive shaft, the driving shaft is a a virtual rotating shaft is disposed in the housing rotatably relative to the housing, and one end of the driving shaft is synchronously rotatably coupled to the rear wheel, and the first transmission shaft is driven by the driving shaft to be a second virtual rotating shaft The second virtual rotating shaft is intersected with the first virtual rotating shaft, and the first driving shaft is different from the one end of the driving shaft, and a first reference surface is disposed. The moving shaft is provided with a first latching portion on the first reference surface, the first latching portion is non-circular in a radial direction along the second virtual rotating shaft, and the second transmitting shaft can be the second virtual rotating shaft The shaft is rotatably disposed in the housing relative to the housing, the second transmission shaft is disposed at an end of the first transmission shaft that is different from the driving shaft, and the second transmission shaft is disposed adjacent to one end of the first transmission shaft The driving shaft is driven by the second driving shaft and is rotatably disposed in the housing with the third virtual rotating shaft as an axis. The third virtual rotating shaft and the first virtual rotating shaft are parallel to each other. The third virtual rotating shaft intersects the second virtual rotating shaft, one end of the passive shaft is synchronously rotatably connected to the pedal, the transmission device has a sliding member, and the sliding member is synchronously rotated with the second transmission shaft a second latching portion is disposed at an end of the driving member adjacent to the first transmission shaft, and the second latching portion is non-circular in a radial direction along the second virtual rotating shaft. The second card portion is selectively detached from the first card Engaging portion, the sliding member movable along the second virtual axis spindle Moving relative to the second transmission shaft between the transmission position and the release position, the second latching portion is engaged with the first latching portion when the sliding member is in the driving position, and the first driving shaft drives the sliding member When the sliding member releases the position, the second latching portion is disengaged from the first latching portion, and the first driving shaft cannot drive the sliding member to rotate. The wheelchair having the rehabilitation function according to claim 1, wherein the sliding member has a step shape along a radial outer circumference of the second virtual rotating shaft, and an outer circumference of the sliding member is provided along the second virtual rotating shaft. a radially extending abutting surface facing the direction of the first transmission shaft, the transmission device has an operating rod, and the two ends of the operating rod are pivotally disposed on the housing, and one end of the operating rod is disposed In the housing, the other end of the operating rod protrudes out of the housing, and an end of the operating rod located in the housing abuts against the abutting surface of the sliding member. The wheelchair having the rehabilitation function according to claim 2, wherein the operating rod is U-shaped adjacent to one end of the sliding member and spans both sides of the sliding member along the radial direction of the second virtual rotating shaft. The wheelchair having the rehabilitation function according to claim 2, wherein the driving section has a non-circular cross section along the radial direction of the second virtual rotating shaft, and the driving section of the second transmission shaft does not contact the first transmission shaft, The sliding member is provided with an insertion hole along the axial direction of the second virtual rotating shaft, the insertion portion of the insertion hole is non-circular in a radial direction along the second virtual rotating shaft, and the shape of the insertion hole and the shape of the driving segment correspond to each other The driving segment is inserted in the jack. The wheelchair having the rehabilitation function according to claim 4, wherein the outer circumference of the driving segment along the radial direction of the second virtual rotating shaft is composed of two curved surfaces and two planes, and the two curved surfaces are the second virtual The axes of rotation are centered and opposite each other, the two planes being respectively connected to the two arcuate faces, the two planes being opposite each other and parallel to each other. The wheelchair having the rehabilitation function according to claim 4, wherein the first transmission shaft is different from the one end of the driving shaft, and a positioning slot is disposed at the center of the first transmission shaft and along the second virtual The rotating shaft extends axially in a direction adjacent to the driving shaft, the positioning groove has a circular cross section along the radial direction of the second virtual rotating shaft, and a positioning section is disposed at an end of the second driving shaft adjacent to the first transmission shaft, the positioning section Located at a center of the second transmission shaft and located at a side of the driving section adjacent to the first transmission shaft, the positioning section has a circular cross section along a radial direction of the second virtual rotating shaft, and the positioning section of the second transmission shaft is inserted into the first A positioning groove of a drive shaft. The wheelchair having the rehabilitation function according to claim 6, wherein the first latching portion has a groove shape and extends from the first reference plane along the second virtual rotating shaft axially toward the driving shaft, the first a latching portion extends through the two sides of the first transmission shaft in a radial direction of the second virtual rotating shaft, the positioning slot is recessed on a side of the first latching portion adjacent to the driving shaft, and the second latching portion is And extending in a direction parallel to the first transmission shaft along the second virtual rotating shaft, the second latch portion extending in a radial direction of the second virtual rotating shaft to two sides of the second transmission shaft. A wheelchair having a rehabilitation function according to claim 7, wherein the housing includes a first component, a second component, a third component, and a fourth component, the second component being coupled to the first component The third component is connected to a side of the second component that is different from the first component, and the third component is disposed adjacent to the second component with a class-shaped receiving space, and the bottom surface of the receiving space Facing the second component, the fourth component is connected to a side of the third component different from the second component, the driving shaft is disposed in the first component of the housing, and the first transmission shaft is disposed on the shell In the second component of the body, an end of the first transmission shaft adjacent to the driving shaft is located in the first component, and the first transmission shaft is different from the one end of the driving shaft and protrudes from the second component, the second transmission The shaft is disposed in a third component of the housing, the passive shaft The sliding member is disposed in the accommodating space, and the two ends of the operating rod are pivotally disposed on the third component of the housing, and one end of the operating rod is disposed on the shell Within the body's accommodation space. The wheelchair having the rehabilitation function according to claim 8, wherein the bottom surface of the accommodating space is convexly provided with a latching flange, and the sliding member is different from the end of the first transmission shaft and has a latching recess. a flange extending along a direction perpendicular to the first transmission shaft along the second virtual rotating shaft, the sliding member being movable between a transmission position, a release position, and a locking position, the sliding member locking position The latching flange of the housing is latched on the latching recess of the sliding member, and the second transmission shaft cannot be rotated relative to the housing. A wheelchair having a rehabilitation function according to claim 9, wherein the second transmission shaft is free to rotate relative to the housing when the sliding member releases the position. A wheelchair having a rehabilitation function according to claim 8, wherein the housing has a protrusion protruding from an outer surface of the second member, the lever being different from an end of the sliding member and the housing Corresponding to each other, the transmission device has an elastic member and a spring. The elastic member is sleeved on the second transmission shaft, and one end of the elastic member abuts against the sliding member and is different from the first transmission shaft. One end and the other end of the elastic member abuts against the housing, the elastic member can push the sliding member to move toward the first transmission shaft, and the two ends of the spring respectively abut the protruding post and the Joystick. A wheelchair having a rehabilitation function according to claim 11, wherein the driving shaft is provided with a first helical gear that is synchronously rotated at one end of the rear wheel, and the first transmission shaft is synchronously rotated adjacent to one end of the driving shaft. a second helical gear is disposed, the second helical gear and the first helical gear are meshed with each other, and the second transmission shaft is provided with a third helical gear different from the one end of the first transmission shaft. The passive shaft is provided with a fourth helical gear that is synchronous with the one end of the pedal, and the fourth helical gear and the third helical gear mesh with each other. The wheelchair having the rehabilitation function according to claim 12, wherein the second virtual rotating shaft and the first virtual rotating shaft are perpendicular to each other, the third virtual rotating shaft and the second virtual rotating shaft are perpendicular to each other, and the third virtual rotating shaft is opposite to the The first virtual axis of rotation is on the same plane. A wheelchair having a rehabilitation function according to claim 13, wherein the transmission is located between the two rear wheels, and the housing has a zigzag-shaped hollow rod shape. A transmission device for a wheelchair having a rehabilitation function, comprising: a housing; a driving shaft, wherein the driving shaft is rotatably disposed in the housing with a first virtual rotating shaft as an axis; a first transmission shaft is rotatably disposed in the housing with the second virtual rotating shaft as a shaft center, and the second virtual rotating shaft intersects the first virtual rotating shaft, the first driving shaft is driven by the driving shaft One end of the drive shaft is different from the driving shaft, and a first reference surface is disposed on the first reference surface. The first driving shaft is disposed on the first reference surface with a first latching portion along the second virtual rotating shaft. The radial cross section is non-circular; a second transmission shaft is rotatably disposed in the housing relative to the housing with the second virtual rotating shaft as an axis, and the second transmission shaft is disposed in the housing The first transmission shaft is different from one end of the driving shaft, and the second transmission shaft is provided with a driving section adjacent to one end of the first transmission shaft; a passive shaft driven by the second transmission shaft to be a third The virtual shaft is the axis relative to the housing Dynamically disposed in the housing, the third virtual rotating shaft and the first virtual rotating shaft are parallel to each other, the third virtual rotating shaft intersects the second virtual rotating shaft; a sliding member, the sliding member is along with the second driving shaft Slidingly sleeved on the outer circumference of the driving segment, the sliding member is provided with a second latching portion adjacent to the end of the first transmission shaft, and the second latching portion is along the first The cross section of the second virtual rotating shaft is non-circular, and the second latching portion is selectively detachably engaged with the first latching portion, and the sliding member is axially opposite to the second transmission along the second virtual rotating shaft When the sliding member is in the driving position, the second latching portion is engaged with the first latching portion, and the first driving shaft drives the sliding member to rotate synchronously, the sliding When the moving member releases the position, the second latching portion is disengaged from the first latching portion, and the first transmission shaft cannot drive the sliding member to rotate. The transmission device of the wheelchair having the rehabilitation function according to claim 15, wherein the sliding member has a step shape along a radial outer periphery of the second virtual rotating shaft, and an outer circumference of the sliding member is provided along the first Abutting surface of the second virtual rotating shaft, the abutting surface is oriented in a direction adjacent to the first transmission shaft, the transmission device has an operating rod, and the two ends of the operating rod are pivotally disposed on the housing, the operating rod One end of the operating rod is disposed outside the casing, and an end of the operating rod located in the casing abuts against the abutting surface of the sliding member. The transmission device for a wheelchair having a rehabilitation function according to claim 16, wherein the operating rod is U-shaped adjacent to one end of the sliding member and spans two of the sliding member along the radial direction of the second virtual rotating shaft. side. The transmission device of the wheelchair having the rehabilitation function according to claim 16, wherein the driving section has a non-circular cross section along a radial direction of the second virtual rotating shaft, and the driving section of the second transmission shaft does not contact the first transmission. a shaft, the sliding member is provided with a receiving hole along the axial direction of the second virtual rotating shaft, the cross section of the insertion hole along the radial direction of the second virtual rotating shaft is non-circular and the shape of the insertion hole and the shape of the driving segment Corresponding to each other, the driving segment is inserted into the jack. The transmission device of the wheelchair having the rehabilitation function according to claim 18, wherein the outer circumference of the driving section along the radial direction of the second virtual rotating shaft is composed of two curved surfaces and two planes, the two curved surfaces Centered on the second virtual axis of rotation and opposite to each other, the two planes are respectively connected to the two arcuate faces, which are opposite to each other and parallel to each other. The transmission device of the wheelchair having the rehabilitation function according to claim 18, wherein the first transmission shaft is different from the one end of the driving shaft, and a positioning slot is disposed at the center of the first transmission shaft and along the The second virtual rotating shaft extends axially in a direction adjacent to the driving shaft, the positioning groove is circular in a radial direction along the second virtual rotating shaft, and a positioning section is disposed at an end of the second driving shaft adjacent to the first transmission shaft. The positioning segment is located at the center of the second transmission shaft and is located at a side of the driving segment adjacent to the first transmission shaft. The positioning portion has a circular cross section along the radial direction of the second virtual rotating shaft, and the positioning portion of the second transmission shaft Inserted into the positioning groove of the first transmission shaft. The transmission device of the wheelchair having the rehabilitation function according to claim 20, wherein the first latching portion has a groove shape and extends from the first reference surface along the second virtual rotating shaft axially toward the driving shaft. The first latching portion extends through the two sides of the first transmission shaft in a radial direction of the second virtual rotating shaft, and the positioning slot is recessed on a side of the first latching portion adjacent to the driving shaft, the second card The crotch portion has a convex shape and extends axially along the second virtual rotating shaft toward a direction adjacent to the first transmission shaft, and the second clamping portion extends along a radial direction of the second virtual rotating shaft to both sides of the second transmission shaft . A transmission device for a wheelchair having a rehabilitation function according to claim 21, wherein the housing includes a first member, a second member, a third member and a fourth member, the second member being coupled to the a first component, the third component is connected to a side of the second component different from the first component, and the third component is provided with a class-shaped receiving space adjacent to a side of the second component, the receiving component a bottom surface of the space facing the second component, the fourth component being connected to a side of the third component different from the second component, the driving shaft being disposed in the first component of the housing, the first transmission shaft In a second component of the housing, an end of the first drive shaft adjacent to the drive shaft is located in the first component, the first drive shaft phase One end different from the driving shaft protrudes from the second component, the second transmission shaft is disposed in the third component of the housing, the passive shaft is disposed in the fourth component of the housing, and the sliding component is disposed In the accommodating space, the two ends of the operating rod are pivotally disposed on the third component of the housing, and one end of the operating rod is disposed in the accommodating space of the housing. The transmission device of the wheelchair having the rehabilitation function according to claim 22, wherein a bottom surface of the accommodating space is convexly provided with a latching flange, and the sliding member is different from one end of the first transmission shaft. a latching edge extending along the second virtual rotating shaft axially adjacent to the first transmission shaft, the sliding member being movable between a transmission position, a release position, and a locking position, the sliding member When the position is locked, the latching flange of the housing is latched on the latching edge of the slider, and the second drive shaft cannot be rotated relative to the housing. The transmission of a wheelchair having a rehabilitation function according to claim 23, wherein the second transmission shaft is free to rotate relative to the housing when the sliding member releases the position. A transmission device for a wheelchair having a rehabilitation function according to claim 22, wherein the housing has a protrusion protruding from an outer surface of the second member, the lever being different from an end of the sliding member The protrusions of the housing correspond to each other, the transmission device has an elastic member and a spring, and the elastic member is sleeved on the second transmission shaft, and one end of the elastic member abuts against the sliding member is different from the first One end of the transmission shaft and the other end of the elastic member abut against the housing, the elastic member can push the sliding member to move toward the first transmission shaft, and the two ends of the spring respectively abut the convex Column and the lever. The transmission device of the wheelchair having the rehabilitation function according to claim 25, wherein one end of the driving shaft is synchronously rotated to be provided with a first helical gear, and the first transmission shaft is synchronously rotated adjacent to one end of the driving shaft. a second helical gear that meshes with the first helical gear, and the second transmission shaft is provided with a third helical gear that is synchronously rotated from one end of the first transmission shaft. One end of the driven shaft is synchronously rotated to be provided with a fourth helical gear, and the fourth helical gear and the third helical gear mesh with each other. The transmission of the wheelchair having the rehabilitation function according to claim 26, wherein the second virtual rotating shaft and the first virtual rotating shaft are perpendicular to each other, the third virtual rotating shaft and the second virtual rotating shaft are perpendicular to each other and the third virtual The rotating shaft is located on the same plane as the first virtual rotating shaft. A transmission device for a wheelchair having a rehabilitation function according to claim 27, wherein the housing has a zigzag-shaped hollow rod shape.