CN212816840U - Wheelchair pedal adjusting device - Google Patents
Wheelchair pedal adjusting device Download PDFInfo
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- CN212816840U CN212816840U CN202021870659.XU CN202021870659U CN212816840U CN 212816840 U CN212816840 U CN 212816840U CN 202021870659 U CN202021870659 U CN 202021870659U CN 212816840 U CN212816840 U CN 212816840U
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- pedal
- angle
- bevel gear
- adjusting mechanism
- height adjusting
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Abstract
The utility model discloses a wheelchair pedal adjusting device, which comprises a leg plate mechanism, wherein a pedal height adjusting mechanism and a pedal angle adjusting mechanism are both arranged on the leg plate mechanism; the two pedals are symmetrically arranged at the output end of the pedal height adjusting mechanism, and the pedal height adjusting mechanism is used for driving the pedals to move vertically; the pedal is connected with the output end of the pedal height adjusting mechanism through a pedal rotating shaft; the output end of the pedal angle adjusting mechanism is connected with the input end of the pedal rotating shaft and is used for adjusting the included angle between the pedal and the horizontal plane; the utility model realizes the adjustment of the height of the pedal by arranging the pedal height adjusting mechanism; through setting up pedal angle adjustment mechanism, realized adjusting the contained angle between pedal and the horizontal plane, can adjust pedal position according to different users' height position of sitting, simple structure, the steady operation, safety and comfort can be higher.
Description
Technical Field
The utility model belongs to the technical field of the wheelchair device, in particular to wheelchair pedal adjusting device.
Background
In the face of the increasing aging of domestic population and the increasing disability rate caused by traffic accidents, the demand of the wheelchair on the market is increasing; however, the existing wheelchair cannot be manufactured into an individualized wheelchair according to the height and the sitting posture of each person due to factory production, and a user cannot adjust the position of a pedal to provide the optimal position of the pedal; in order to improve the comfort of disabled persons in the use of wheelchairs, a wheelchair pedal adjustment device is particularly needed in the future.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a wheelchair pedal adjusting device to solve current wheelchair pedal and can't adjust, the lower technical problem of use comfort.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a wheelchair pedal adjusting device, which comprises a leg plate mechanism, a pedal height adjusting mechanism, a pedal angle adjusting mechanism, two pedals and a pedal rotating shaft, wherein the pedal height adjusting mechanism and the pedal angle adjusting mechanism are both arranged on the leg plate mechanism; the two pedals are symmetrically arranged at the output end of the pedal height adjusting mechanism, and the pedal height adjusting mechanism is used for driving the pedals to move vertically; the pedal is connected with the output end of the pedal height adjusting mechanism through a pedal rotating shaft, one end of the pedal rotating shaft is fixedly connected with the pedal, and the other end of the pedal rotating shaft is rotatably connected with the output end of the pedal wiping height adjusting mechanism; the output end of the pedal angle adjusting mechanism is connected with the input end of the pedal rotating shaft and is used for adjusting the included angle between the pedal and the horizontal plane.
Further, the pedal height adjusting mechanism comprises a height driving motor, a first corner device, a first lead screw nut, a height adjusting connecting plate and a bearing fixing plate; the height driving motor is fixedly arranged on the leg plate mechanism, the output end of the height driving motor is connected with the first input end of the first corner converter, the first lead screw is vertically arranged in the middle of the leg plate mechanism, the upper end of the first lead screw is connected with the output end of the first corner converter, and the first lead screw nut is movably sleeved on the first lead screw; the height adjusting connecting plate is horizontally arranged, and the middle part of the height adjusting connecting plate is fixedly connected with the first lead screw nut; the two ends of one side of the height adjusting connecting plate are connected with the leg plate mechanism in a vertical sliding mode, the two ends of the other side of the height adjusting connecting plate are respectively provided with a bearing fixing plate, and the pedal rotating shaft is horizontally arranged on the bearing fixing plates in a rotating mode.
Furthermore, the pedal height adjusting mechanism also comprises a first manual knob and a first knob connecting shaft; one end of the first knob connecting shaft is fixedly connected with the first manual knob, and the other end of the first knob connecting shaft is connected with the second input end of the first corner device.
Further, the first angle converter comprises a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and a first angle converter shell, wherein the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are all arranged in the first angle converter shell and are sequentially meshed and connected in a rectangular shape; the output end of the height driving motor is connected with the first bevel gear, the upper end of the first screw rod is connected with the fourth bevel gear, the first bevel gear is meshed with the fourth bevel gear, and the rotating axis of the first bevel gear is perpendicular to that of the fourth bevel gear.
Further, the pedal angle adjusting mechanism comprises an angle driving motor, a second corner device, a second lead screw nut, an angle adjusting connecting plate, a sliding connecting plate, an angle adjusting connecting rod and an angle driving connecting rod; the angle driving motor and the second corner device are vertically and slidably arranged on the leg plate mechanism, the output end of the angle driving motor is connected with the first input end of the second corner device, the second lead screw is vertically arranged, and the upper end of the second lead screw is connected with the output end of the second corner device; the second screw rod nut is movably sleeved on the second screw rod, the angle adjusting connecting plate is horizontally fixed on the second screw rod nut, and two ends of the angle adjusting connecting plate are vertically and slidably connected with the leg plate mechanism through sliding connecting plates; the sliding connection plate is arranged corresponding to the pedal up and down, one end of the angle adjusting connecting rod is connected with the sliding connection plate, the other end of the angle adjusting connecting rod is rotatably connected with one end of the angle driving connecting rod, and the other end of the angle driving connecting rod is fixedly connected with the input end of the pedal rotating shaft.
Furthermore, the pedal angle adjusting mechanism also comprises a second manual knob and a second knob connecting shaft; one end of the second knob connecting shaft is connected with the second manual knob, and the other end of the second knob connecting shaft is connected with the second input end of the second corner device.
The pedal angle adjusting mechanism further comprises a corner device fixing plate and an angle driving motor fixing plate, the corner device fixing plate is vertically and slidably arranged on the leg plate mechanism, one end of the corner device fixing plate is vertically and slidably connected with the leg plate mechanism, the other end of the corner device fixing plate is fixedly connected with the pedal height adjusting mechanism, and the second corner device is fixedly arranged on the corner device fixing plate; the angle driving motor fixing plate is horizontally arranged, one end of the angle driving motor fixing plate is connected with the leg plate mechanism in a vertical sliding mode, the other end of the angle driving motor fixing plate is fixedly connected with the corner device fixing plate, and the angle driving motor is fixedly arranged on the angle driving motor fixing plate.
Further, the second corner device comprises a fifth bevel gear, a sixth bevel gear, a seventh bevel gear, an eighth bevel gear and a second corner device shell, wherein the fifth bevel gear, the sixth bevel gear, the seventh bevel gear and the eighth bevel gear are all arranged in the second corner device shell and are sequentially meshed and connected in a rectangular shape; the output end of the angle driving motor is connected with a fifth bevel gear, the upper end of the second screw rod is connected with an eighth bevel gear, the fifth bevel gear is meshed with the eighth bevel gear, and the fifth bevel gear is perpendicular to the rotation axis of the eighth bevel gear.
Further, the leg plate mechanism comprises two vertical slide rails, two horizontal connecting beams, a height adjusting mechanism mounting seat and an angle adjusting mechanism mounting seat, the two vertical slide rails are vertically arranged in parallel, and the two horizontal connecting beams are horizontally and fixedly arranged at the upper end and the lower end of the two vertical slide rails; the pedal height adjusting mechanism is arranged on the height adjusting mechanism mounting seat, and two sides of the pedal height adjusting mechanism are vertically connected with the two vertical slide rails in a sliding manner; the angle adjusting mechanism mounting seat is vertically arranged between the two vertical sliding rails and is arranged on one side of the height adjusting mechanism mounting seat in parallel, the pedal angle adjusting mechanism is slidably mounted on the angle adjusting mechanism mounting seat, and two ends of the pedal angle adjusting mechanism are respectively connected with the two vertical sliding rails in a sliding manner.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a wheelchair pedal adjusting device, which realizes the adjustment of the height of a pedal by arranging a pedal height adjusting mechanism; through setting up pedal angle adjustment mechanism, realized adjusting the contained angle between pedal and the horizontal plane, can adjust pedal position according to different users' height position of sitting, simple structure, the steady operation, safety and comfort can be higher.
Furthermore, the pedal height adjusting mechanism is combined by the screw rod mechanism and the corner device, and the vertical movement of the screw rod nut on the screw rod is realized, so that the pedal is driven to move up and down in the vertical direction.
Furthermore, a manual knob and a knob connecting shaft are arranged in the pedal height adjusting mechanism, the manual knob is used for providing power for the corner device, and the power is transmitted to the first screw rod through the corner device, so that the manual adjustment of the height of the pedal is realized, and the flexibility of the mechanism is improved.
Further, the pedal angle adjusting mechanism is combined by the lead screw mechanism and the corner device, the angle adjusting connecting plate and the sliding connecting plate are driven to move in the vertical direction through the vertical movement of the lead screw nut on the lead screw, and then the pedal rotating shaft is driven to rotate around the angle adjusting connecting rod and the angle driving connecting rod, so that the pedal rotating shaft is driven to rotate around the pedal rotating shaft, the pedal is driven to rotate around the pedal rotating shaft, the angle between the pedal and the horizontal plane is adjusted, the structure is simple, the stability of the adjusting process is high, and the safety is good.
Furthermore, a manual knob and a knob connecting shaft are arranged in the pedal angle adjusting mechanism, the manual knob is used for providing power for the corner device, and the power is transmitted to the second lead screw through the corner device, so that the manual adjustment of the pedal angle is realized, and the flexibility of the mechanism is improved.
Furthermore, the first corner device and the second corner device are both formed by meshing four conical gears, the two conical gears at two ends are used as power input ends, one end is used as a power transmission output end, the change of the power transmission direction is realized, and meanwhile, conditions are provided for providing two modes of manual adjustment and motor adjustment.
Drawings
Fig. 1 is a schematic view of the overall structure of the wheelchair pedal adjusting device of the present invention;
FIG. 2 is a schematic structural view of a leg plate mechanism of the wheelchair pedal adjusting device of the present invention;
FIG. 3 is a schematic structural view of a pedal height adjusting mechanism of the wheelchair pedal adjusting device according to the present invention;
FIG. 4 is a schematic plan view of a pedal angle adjusting mechanism of the wheelchair pedal adjusting device according to the present invention;
FIG. 5 is a schematic perspective view of a pedal angle adjusting mechanism of the wheelchair pedal adjusting mechanism of the present invention;
FIG. 6 is a schematic view of a portion of a pedal height adjusting mechanism of the wheelchair pedal adjusting device according to the present invention;
FIG. 7 is a schematic view of a pedal angle adjusting mechanism of the wheelchair pedal adjusting device according to the present invention;
fig. 8 is a schematic view of the internal structure of the first angle rotator of the wheelchair pedal adjusting device of the present invention.
Wherein, 1 a leg plate mechanism, 2 a pedal height adjusting mechanism, 3 a pedal angle adjusting mechanism, 4 pedals and 5 pedal rotating shafts; 11 vertical slide rails, 12 horizontal connecting beams, 13 height adjusting mechanism mounting seats, 14 angle adjusting mechanism mounting seats and 15 angle adjusting mechanism slide rails; the device comprises a height driving motor 21, a first angle turning device 22, a first lead screw 23, a first lead screw nut 24, a height adjusting connecting plate 25, a bearing fixing plate 26, a pedal fixing plate 27, a first motor driving shaft 28, a first manual knob 29, a first knob connecting shaft 210, a first sliding block 211 and a first knob bracket 212; the angle adjusting mechanism comprises a 31-degree driving motor, a 32-degree second corner device, a 33-degree second screw rod, a 34-degree second screw rod nut, a 35-degree adjusting connecting plate, a 36-degree sliding connecting plate, a 37-degree adjusting connecting rod, a 38-degree driving connecting rod, a 39-degree corner device fixing plate, a 310-degree second knob fixing plate, a 311-degree driving motor fixing plate, a 312-degree second motor driving shaft, a 313-degree second manual knob, a 314-degree second knob connecting shaft, a 315-degree second knob support, a 316-degree second sliding block and a 317-degree third.
Detailed Description
In order to make the technical problem solved by the present invention, technical solution and beneficial effect are more clearly understood, and the following specific embodiments are right for the present invention to proceed further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-8, the utility model provides a wheelchair pedal adjusting device, which comprises a leg plate mechanism 1, a pedal height adjusting mechanism 2, a pedal angle adjusting mechanism 3, two pedals 4 and a pedal rotating shaft 5, wherein the pedal height adjusting mechanism 2 and the pedal angle adjusting mechanism 3 are both arranged on the leg plate mechanism 1; the two pedals 4 are symmetrically arranged at the output end of the pedal height adjusting mechanism 2, and the pedal height adjusting mechanism 2 is used for driving the pedals 4 to vertically move; the pedal 4 is connected with the output end of the pedal height adjusting mechanism 2 through a pedal rotating shaft 5, one end of the pedal rotating shaft 5 is fixedly connected with the pedal 4, and the other end of the pedal rotating shaft is rotatably connected with the output end of the pedal wiping height adjusting mechanism 2; the output end of the pedal angle adjusting mechanism 3 is connected with the input end of the pedal rotating shaft 5, and the pedal angle adjusting mechanism 3 is used for driving the pedal rotating shaft 5 to horizontally rotate so as to adjust the included angle between the pedal 4 and the horizontal plane; the utility model realizes the adjustment of the vertical height position of the pedal 4 by arranging the pedal height adjusting mechanism 2; through setting up pedal angle adjustment mechanism 3, realized adjusting the contained angle between pedal 4 and the horizontal plane, can adjust pedal position according to different users' height position of sitting, simple structure, the steady operation, safety and comfort can be higher.
The leg plate mechanism 1 comprises two vertical slide rails 11, two horizontal connecting beams 12, a height adjusting mechanism mounting seat 13, an angle adjusting mechanism mounting seat 14 and an angle adjusting mechanism slide rail 15; the two vertical slide rails 11 are vertically arranged in parallel, the two horizontal connecting beams 12 are horizontally and fixedly arranged at the upper and lower ends of the two vertical slide rails 11, and the vertical slide rails 11 and the horizontal connecting beams 12 are sequentially connected to form a rectangular frame structure; the height adjusting mechanism mounting seat 13 is vertically arranged between the two vertical slide rails 11, and the upper end and the lower end of the height adjusting mechanism mounting seat 13 are respectively and fixedly connected with the two horizontal connecting beams 12; the pedal height adjusting mechanism 2 is installed on the height adjusting mechanism installing seat 13, and two sides of the pedal height adjusting mechanism 2 are vertically connected with the two vertical sliding rails 11 in a sliding manner; the angle adjusting mechanism mounting seat 14 is vertically fixed between the two vertical sliding rails 11 and is arranged on one side of the height adjusting mechanism mounting seat 13 in parallel, and the upper end and the lower end of the angle adjusting mechanism mounting seat 14 are respectively and fixedly connected with the two horizontal connecting beams 12; the pedal angle adjusting mechanism 3 is slidably mounted on the angle adjusting mechanism mounting seat 14, an angle adjusting mechanism sliding rail 15 is arranged between the pedal angle adjusting mechanism 3 and the angle adjusting mechanism mounting seat 14, one side of the angle adjusting sliding rail 15 is fixedly connected with the angle adjusting mechanism mounting seat 14, the other side of the angle adjusting sliding rail 15 is slidably connected with the pedal angle adjusting mechanism 3, and the axis of the angle adjusting mechanism sliding rail 15 is vertically arranged; two ends of the pedal angle adjusting mechanism 3 are respectively connected with the two vertical slide rails 11 in a vertical sliding manner.
The pedal height adjusting mechanism 2 includes a height driving motor 21, a first angle converter 22, a first lead screw 23, a first lead screw nut 24, a height adjusting connection plate 25, a bearing fixing plate 26, a pedal fixing plate 27, a first motor driving shaft 28, a first manual knob 29, a first knob connecting shaft 210, a first slider 211 and a first knob bracket 212.
The height driving motor 21 is fixedly arranged on the angle adjusting mechanism mounting base 14, and the output end of the height driving motor 21 is horizontally arranged; the first angle converter 22 is fixedly installed on the height adjusting mechanism installation seat 13, and the first motor driving shaft 28 is horizontally arranged between the height driving motor 21 and the first angle converter 22; one end of the first motor drive shaft 28 is connected to the output end of the height drive motor 21, and the other end is connected to the first input end of the first angle rotator 22; the first knob connecting shaft 210 is horizontally arranged on the other side of the first corner device 22, one end of the first knob connecting shaft 210 is connected with the second input end of the first corner device 22, the other end of the first knob connecting shaft 210 is mounted on the side face of one of the vertical sliding rails 11 through the first knob bracket 212, the first knob connecting shaft 210 is rotatably connected with the first knob bracket 212, and the first manual knob 29 is fixedly arranged at the end of the first knob connecting shaft 210.
The first screw rod 23 is vertically arranged on the height adjusting mechanism mounting seat 13, the upper end of the first screw rod 23 is connected with the output end of the first corner device 22, the lower end of the first screw rod 23 is arranged on the horizontal connecting beam 12 at the lower part through a screw rod bracket, and the first screw rod 23 is rotatably connected with the screw rod bracket; the first screw rod nut 24 is movably sleeved on the first screw rod 23, the height adjusting connecting plate 25 is horizontally arranged, and the middle part of the height adjusting connecting plate 25 is fixedly connected with the first screw rod nut 24; two ends of one side of the height adjusting connecting plate 25 are vertically and slidably connected with the vertical slide rail 11, a first sliding block 211 is arranged at the end part of the height adjusting connecting plate 25, and the first sliding block 211 is slidably connected with the vertical slide rail 11; two ends of the other side of the height adjusting connecting plate 25 are respectively provided with a bearing fixing plate 26, and the pedal rotating shaft 5 is horizontally and rotatably arranged on the bearing fixing plates 26; one end of the pedal rotating shaft 5 is rotatably connected with the bearing fixing plate 26, the other end is fixedly connected with the pedal fixing plate 27, and the pedal 4 is fixedly installed on the pedal rotating shaft 5 and is arranged on the pedal fixing plate 27.
The first angle converter 22 comprises a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and a first angle converter shell, wherein the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are all arranged in the first angle converter shell and are sequentially meshed and connected in a rectangular shape; one end of the first motor driving shaft 28 is connected with the output end of the height driving motor 21, and the other end of the first motor driving shaft penetrates through the first corner device shell and then is connected with the first bevel gear; the upper end of the first screw rod 23 penetrates through the first rotating angle shell and then is connected with a fourth bevel gear, the first bevel gear is meshed with the fourth bevel gear, and the rotating axis of the first bevel gear is vertical to that of the fourth bevel gear; the first knob connecting shaft penetrates through the first corner device shell and then is connected with the third bevel gear, and the rotating axis of the third bevel gear is overlapped with the rotating axis of the first bevel gear; when the height driving motor rotates, the first motor driving shaft 28 drives the first bevel gear to rotate, and when the first bevel gear rotates, the fourth bevel gear meshed with the first bevel gear is driven to rotate, so that the first screw rod is rotated; when the first manual knob is screwed, the first manual knob drives the third bevel gear to rotate through the first knob connecting shaft, and when the third bevel gear rotates, the fourth bevel gear meshed with the third bevel gear is driven to rotate, so that the rotation of the first screw rod is realized, the change of the power transmission direction is realized, and the effectiveness of power transmission is ensured.
The pedal angle adjusting mechanism 3 includes an angle driving motor 31, a second angle turning device 32, a second lead screw 33, a second lead screw nut 34, an angle adjusting connecting plate 35, a sliding connecting plate 36, an angle adjusting connecting rod 37, an angle driving connecting rod 38, an angle turning device fixing plate 39, a second knob fixing plate 310, an angle driving motor fixing plate 311, a second motor driving shaft 312, a second manual knob 313, a second knob connecting shaft 314, a second knob bracket 315, a second slider 316, and a third slider 317.
The corner device fixing plate 39 is vertically arranged, the upper end of the corner device fixing plate 39 is connected with the angle adjusting mechanism slide rail 15 in a sliding mode, and the lower end of the corner device 39 is fixedly connected with the height adjusting connecting plate 25; when the height adjusting connecting plate 25 vertically moves up and down, the corner device fixing plate 39 can be driven to vertically move up and down along the angle adjusting mechanism slide rail 15; the angle driving motor fixing plate 311 is horizontally arranged on one side of the upper end of the corner device fixing plate 39, one end of the angle driving motor fixing plate 311 is fixedly connected with the corner device fixing plate 39, and the other end of the angle driving motor fixing plate 311 is vertically and slidably connected with one of the vertical slide rails 11; the second knob fixing plate 310 is horizontally arranged on the other side of the upper end of the corner device fixing plate 39, one end of the second knob fixing plate 310 is fixedly connected with the corner device fixing plate 39, and the other end of the second knob fixing plate 310 is vertically and slidably connected with the other vertical slide rail 11; the end parts of the angle driving motor fixing plate 311 and the second knob fixing plate 310 are both provided with a second sliding block 316, and the two second sliding blocks 316 are respectively connected with the two vertical sliding rails 11 in a sliding manner.
The angle driving motor 31 is fixedly arranged on the angle driving motor fixing plate 311, and the output end of the angle driving motor 31 is horizontally arranged; the second corner device 32 is fixedly arranged on the corner device fixing plate 39, the second motor driving shaft 312 is horizontally arranged between the angle driving motor 31 and the second corner device 32, one end of the second motor driving shaft 312 is connected with the output end of the angle driving motor 31, and the other end is connected with the first input end of the second corner device 32.
The second knob connecting shaft 314 is horizontally arranged on the second knob fixing plate 310 through a second knob bracket 315, one end of the second knob connecting shaft 314 is connected with a second input end of the second corner 32, and the other end is rotatably connected with the second knob bracket 315; the second manual knob 313 is fixedly provided at an end of the second knob connecting shaft 314.
The second screw rod 33 is vertically arranged, and the upper end of the second screw rod 33 is connected with the output end of the second corner device 32; the second screw rod nut 34 is movably sleeved on the second screw rod 33, the angle adjusting connecting plate 35 is horizontally fixed on the second screw rod nut 34, two ends of the angle adjusting connecting plate 35 are respectively provided with a sliding connecting plate 36, one end of the sliding connecting plate 36 is fixedly connected with the angle adjusting plate 5, and the other end of the sliding connecting plate 36 is vertically and slidably connected with the vertical slide rail 11; each sliding connection plate 36 is provided with a third slider 317, and the third slider 317 is connected with the vertical slide rail 11 in a sliding manner; the sliding connection plate 36 is vertically and correspondingly arranged with the pedal 4, one end of the angle adjusting connecting rod 37 is connected with the sliding connection plate 36, the other end of the angle adjusting connecting rod 37 is rotatably connected with one end of the angle driving connecting rod 38, and the other end of the angle driving connecting rod 38 is fixedly connected with the input end of the pedal rotating shaft 5; preferably, the angle drive link 37 is an L-shaped rod.
The second corner device 32 has the same basic structure principle as the first corner device 22, the second corner device 32 includes a fifth bevel gear, a sixth bevel gear, a seventh bevel gear, an eighth bevel gear and a second corner device housing, and the fifth bevel gear, the sixth bevel gear, the seventh bevel gear and the eighth bevel gear are all arranged in the second corner device housing and are sequentially engaged and connected in a rectangular shape; one end of the second motor driving shaft is connected with the output end of the angle driving motor, and the other end of the second motor driving shaft penetrates through the second corner device shell and then is connected with the fifth bevel gear; the upper end of the second screw rod penetrates through the second corner shell and then is connected with the eighth bevel gear, the fifth bevel gear is meshed with the eighth bevel gear, and the fifth bevel gear is perpendicular to the rotating axis of the eighth bevel gear; the second knob connecting shaft penetrates through the second corner device shell and then is connected with the seventh bevel gear, and the rotating axis of the seventh bevel gear is overlapped with the rotating axis of the fifth bevel gear; when the height driving motor rotates, the fifth bevel gear is driven to rotate through the second motor driving shaft, and when the fifth bevel gear rotates, the eighth bevel gear meshed with the fifth bevel gear is driven to rotate, so that the second screw rod is rotated; when the second manual knob is screwed, the second manual knob drives the seventh bevel gear to rotate through the second knob connecting shaft, and when the seventh bevel gear rotates, the eighth bevel gear meshed with the seventh bevel gear is driven to rotate, so that the rotation of the second screw rod is realized, the change of the power transmission direction is realized, and the effectiveness of power transmission is ensured.
The utility model discloses a wheelchair pedal adjusting device, through setting up pedal height adjustment mechanism, pedal height adjustment mechanism adopts height adjustment lead screw mechanism and corner ware to combine, simple structure, the operation is steady, the security performance is better; the height adjusting screw rod mechanism provides power through the height driving motor and the manual knob, two adjusting modes of manual adjustment and automatic adjustment of the pedal height can be flexibly realized, and the requirements of different users on sitting postures and heights can be well met; the pedal angle adjusting mechanism is arranged and is combined with the corner device through the angle adjusting screw rod mechanism, the angle adjusting screw rod mechanism provides power through the height driving motor and the manual knob, two adjusting modes of manual adjustment and automatic adjustment of the inclination angle of the pedal are achieved, the height and habit requirements of different users are met in the using process, and the practicability is good; the utility model discloses can be nimble adjust the height and the angle of wheelchair running-board according to wheelchair user's height and custom, make the user use more comfortable, user demand who satisfies that can be fine.
Principle of operation
In the wheelchair pedal adjusting device of the utility model, the driving force of the pedal height adjusting mechanism can be provided by the height driving motor and the second manual knob to realize height adjustment; the driving force provided by the manual and height driving motor is transmitted to the first lead screw through the first corner device, the first lead screw is driven to rotate around the axis of the first lead screw, the first lead screw mechanism is connected with the first lead screw nut through threads, the height adjusting connecting plate is arranged through the first lead screw nut, the height adjusting connecting plate is made to vertically slide up and down, the height adjusting connecting plate and the pedal fixing plate are fixed into a whole through threaded bolts, the pedal is connected to the pedal fixing plate through a pedal rotating shaft, the pedal is driven to slide through the sliding of the height adjusting plate, the vertical up-and-down sliding of the pedal is realized, and the adjustment of the height of the pedal is further realized.
One end of a corner device fixing plate in the pedal angle adjusting mechanism is fixedly connected with the height adjusting connecting plate through a bolt, and the other end of the corner device fixing plate is connected with an angle adjusting mechanism sliding rail in a sliding mode; when the height adjusting connecting plate slides, the pedal angle adjusting mechanism is driven to slide by the corner device fixing plate; after the height adjustment of the pedal is completed, the driving force for adjusting the angle in the pedal angle adjusting mechanism can be automatically adjusted by using an angle driving motor or a second manual knob, the manual driving force and the motor driving force are transmitted to a second lead screw through a second corner device, a second lead screw nut on the second lead screw drives an angle adjusting connecting plate through thread matching, so that the angle adjusting connecting plate vertically slides up and down, the angle adjusting connecting plate slides to drive an angle adjusting connecting rod to rotate, the angle adjusting connecting rod rotates to drive an angle adjusting driving rod to rotate, the angle adjusting driving rod drives a pedal rotating shaft to rotate, the pedal rotating shaft is fixedly connected with the pedal through a thread structure, the pedal rotating shaft rotates to drive the pedal to rotate, and the angle adjustment of the pedal is realized.
The utility model relates to a wheelchair pedal adjusting device, which comprises a leg plate mechanism, a pedal height adjusting mechanism, a pedal angle adjusting mechanism, a pedal and a pedal rotating shaft; the pedal height adjusting mechanism is provided with a first corner device at the middle shaft position of the leg plate mechanism, the first input end of the first corner device is connected with a first motor connecting shaft, the second input end of the first corner device is connected with a first manual knob connecting shaft through a first knob connecting shaft, the output end of the first corner device is connected with a first lead screw, and the first lead screw is vertically arranged; the first screw rod is connected with the first screw rod nut in a matching way; the first lead screw nut is fixed in the middle of the height adjusting connecting plate, bearing fixing plates are symmetrically arranged on one side of the height adjusting connecting plate in a bilateral mode, pedal fixing plates are symmetrically arranged on the other side of the height adjusting connecting plate in a bilateral mode, a first sliding block is arranged on each pedal fixing plate, and the first sliding blocks are connected to vertical sliding rails on the left side and the right side of the leg plate mechanism.
The pedal angle adjusting mechanism is provided with a second corner device at the position of the leg plate mechanism deviating from the middle shaft, the second corner device is fixedly connected to a corner device fixing plate, the corner device fixing plate is connected with an angle adjusting mechanism slide rail, the first input end of the second corner device is connected with one end of a second motor driving shaft, the other end of the second motor driving shaft is fixedly connected with an angle driving motor, the angle driving motor is fixedly arranged on an angle driving motor fixing plate, the angle driving motor fixing plate is connected with a vertical slide rail, the second input end of the second corner device is connected with a second manual knob through a second knob connecting shaft, the second knob connecting shaft is installed on the second knob fixing plate through a knob support, and the second knob fixing plate is connected with the vertical slide rail in a sliding manner; the output end of the second corner device is connected with a second screw rod, and the second screw rod is vertically arranged; the second screw rod nut is connected with the second screw rod in a matching way; the angle adjusting connecting plate is horizontally fixed on the second screw rod nut, sliding connecting plates are respectively arranged at the left end and the right end of the angle connecting plate, a sliding block is fixedly connected onto the sliding connecting plates, and the sliding block is connected with the vertical sliding rail; the sliding connection plate is connected with an angle adjusting connecting rod through a hexagon nut, the angle adjusting connecting rod is rotatably connected with an angle driving connecting rod, the angle driving connecting rod is connected with a pedal rotating shaft through a threaded structure, and the pedal rotating shaft is connected with a pedal through a threaded structure.
The utility model discloses a wheelchair pedal adjusting device, through setting up pedal height adjustment mechanism, realized adjusting the height of pedal; through setting up pedal angle adjustment mechanism, realized adjusting the contained angle between pedal and the horizontal plane, can adjust pedal position according to different users' height position of sitting, simple structure, the steady operation, safety and comfort can be higher.
The above embodiment is only one of the embodiments that can realize the technical solution of the present invention, and the scope of the present invention is not limited only by the embodiment, but also includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention.
Claims (9)
1. A wheelchair pedal adjusting device is characterized by comprising a leg plate mechanism (1), a pedal height adjusting mechanism (2), a pedal angle adjusting mechanism (3), two pedals (4) and a pedal rotating shaft (5), wherein the pedal height adjusting mechanism (2) and the pedal angle adjusting mechanism (3) are arranged on the leg plate mechanism (1); the two pedals (4) are symmetrically arranged at the output end of the pedal height adjusting mechanism (2), and the pedal height adjusting mechanism (2) is used for driving the pedals (4) to vertically move; the pedal (4) is connected with the output end of the pedal height adjusting mechanism (2) through a pedal rotating shaft (5), one end of the pedal rotating shaft (5) is fixedly connected with the pedal (4), and the other end of the pedal rotating shaft is rotatably connected with the output end of the pedal wiping height adjusting mechanism (2); the output end of the pedal angle adjusting mechanism (3) is connected with the input end of the pedal rotating shaft (5) and is used for adjusting the included angle between the pedal (4) and the horizontal plane.
2. The wheelchair pedal adjusting device as claimed in claim 1, wherein the pedal height adjusting mechanism (2) comprises a height driving motor (21), a first angle rotator (22), a first lead screw (23), a first lead screw nut (24), a height adjusting connecting plate (25) and a bearing fixing plate (26); the height driving motor (21) is fixedly arranged on the leg plate mechanism (1), the output end of the height driving motor (21) is connected with the first input end of the first corner device (22), the first lead screw (23) is vertically arranged in the middle of the leg plate mechanism (1), the upper end of the first lead screw (23) is connected with the output end of the first corner device (22), and the first lead screw nut (24) is movably sleeved on the first lead screw (23); the height adjusting connecting plate (25) is horizontally arranged, and the middle part of the height adjusting connecting plate (25) is fixedly connected with the first screw rod nut (24); two ends of one side of the height adjusting connecting plate (25) are vertically and slidably connected with the leg plate mechanism (1), two ends of the other side of the height adjusting connecting plate (25) are respectively provided with a bearing fixing plate (26), and the pedal rotating shaft (5) is horizontally and rotatably arranged on the bearing fixing plate (26).
3. A wheelchair pedal adjustment device as claimed in claim 2, wherein the pedal height adjustment mechanism (2) further comprises a first manual knob (29) and a first knob connecting shaft (210); one end of the first knob connecting shaft (210) is fixedly connected with the first manual knob (29), and the other end of the first knob connecting shaft is connected with the second input end of the first corner device (22).
4. The wheelchair pedal adjusting device as claimed in claim 2, wherein the first angle converter (22) comprises a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and a first angle converter housing, and the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are all arranged in the first angle converter housing and are sequentially meshed and connected in a rectangular shape; the output end of the height driving motor (21) is connected with a first bevel gear, the upper end of a first screw rod (23) is connected with a fourth bevel gear, the first bevel gear is meshed with the fourth bevel gear, and the rotating axis of the first bevel gear is perpendicular to that of the fourth bevel gear.
5. The wheelchair pedal adjustment device as claimed in claim 1, wherein the pedal angle adjustment mechanism (3) comprises an angle drive motor (31), a second corner device (32), a second lead screw (33), a second lead screw nut (34), an angle adjustment connection plate (35), a slide connection plate (36), an angle adjustment connection rod (37) and an angle drive connection rod (38); the angle driving motor (31) and the second corner device (32) are vertically arranged on the leg plate mechanism (1) in a sliding mode, the output end of the angle driving motor (31) is connected with the first input end of the second corner device (32), the second lead screw (33) is vertically arranged, and the upper end of the second lead screw (33) is connected with the output end of the second corner device (32); the second screw rod nut (34) is movably sleeved on the second screw rod (33), the angle adjusting connecting plate (35) is horizontally fixed on the second screw rod nut (34), and two ends of the angle adjusting connecting plate (35) are respectively connected with the leg plate mechanism (1) in a vertical sliding mode through sliding connecting plates (36); the sliding connection plate (36) and the pedal (4) are arranged up and down correspondingly, one end of the angle adjusting connecting rod (37) is connected with the sliding connection plate (36), the other end of the angle adjusting connecting rod (37) is rotatably connected with one end of the angle driving connecting rod (38), and the other end of the angle driving connecting rod (38) is fixedly connected with the input end of the pedal rotating shaft (5).
6. A wheelchair pedal adjustment device as claimed in claim 5, wherein the pedal angle adjustment mechanism (3) further comprises a second manual knob (313) and a second knob connecting shaft (314); one end of the second knob connecting shaft (314) is connected with the second manual knob (313), and the other end of the second knob connecting shaft is connected with the second input end of the second corner device (32).
7. The wheelchair pedal adjusting device according to claim 5, wherein the pedal angle adjusting mechanism (3) further comprises a corner device fixing plate (39) and an angle driving motor fixing plate (311), the corner device fixing plate (39) is vertically slidably arranged on the leg plate mechanism (1), one end of the corner device fixing plate (39) is vertically slidably connected with the leg plate mechanism (1), the other end of the corner device fixing plate is fixedly connected with the pedal height adjusting mechanism (2), and the second corner device (32) is fixedly arranged on the corner device fixing plate (39); the angle driving motor fixing plate (311) is horizontally arranged, one end of the angle driving motor fixing plate (311) is connected with the leg plate mechanism (1) in a vertical sliding mode, the other end of the angle driving motor fixing plate is fixedly connected with the corner device fixing plate (39), and the angle driving motor (31) is fixedly arranged on the angle driving motor fixing plate (311).
8. The wheelchair pedal adjusting device as claimed in claim 5, wherein the second corner device (32) comprises a fifth bevel gear, a sixth bevel gear, a seventh bevel gear, an eighth bevel gear and a second corner device housing, the fifth bevel gear, the sixth bevel gear, the seventh bevel gear and the eighth bevel gear are all arranged in the second corner device housing and are sequentially meshed and connected in a rectangular shape; the output end of the angle driving motor (31) is connected with a fifth bevel gear, the upper end of the second screw rod (33) is connected with an eighth bevel gear, the fifth bevel gear is meshed with the eighth bevel gear, and the fifth bevel gear is perpendicular to the rotating axis of the eighth bevel gear.
9. The wheelchair pedal adjusting device as claimed in claim 2, wherein the leg plate mechanism (1) comprises two vertical slide rails (11), two horizontal connecting beams (12), a height adjusting mechanism mounting seat (13) and an angle adjusting mechanism mounting seat (14), the two vertical slide rails (11) are vertically arranged in parallel, and the two horizontal connecting beams (12) are horizontally and fixedly arranged at the upper and lower ends of the two vertical slide rails (11); the pedal height adjusting mechanism is characterized in that a height adjusting mechanism mounting seat (13) is vertically arranged between the two vertical sliding rails (11), the pedal height adjusting mechanism (2) is mounted on the height adjusting mechanism mounting seat (13), and two sides of the pedal height adjusting mechanism (2) are vertically and slidably connected with the two vertical sliding rails (11); the pedal angle adjusting mechanism is characterized in that an angle adjusting mechanism mounting seat (14) is vertically arranged between two vertical sliding rails (11) and is arranged on one side of a height adjusting mechanism mounting seat (13) in parallel, a pedal angle adjusting mechanism (3) is slidably mounted on the angle adjusting mechanism mounting seat (14), and two ends of the pedal angle adjusting mechanism (3) are respectively connected with the two vertical sliding rails (11) in a vertical sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870659.XU CN212816840U (en) | 2020-08-31 | 2020-08-31 | Wheelchair pedal adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870659.XU CN212816840U (en) | 2020-08-31 | 2020-08-31 | Wheelchair pedal adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212816840U true CN212816840U (en) | 2021-03-30 |
Family
ID=75142734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021870659.XU Active CN212816840U (en) | 2020-08-31 | 2020-08-31 | Wheelchair pedal adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212816840U (en) |
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2020
- 2020-08-31 CN CN202021870659.XU patent/CN212816840U/en active Active
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