CN211568213U - Front and rear reversing device for lumbar vertebra twisting scooter - Google Patents

Abstract

The utility model relates to a lumbar vertebrae wrench movement is with walk plantago back switching-over device before, its body is mainly by the backup pad, the car support frame, right wheel, the box, left wheel, two ratchet axles, front and back shelves shift fork, go up bevel gear, the reversing transmission axle, lower bevel gear, the pair bevel gear that slides, the integral key shaft, initiative bevel gear, locking groove and support frame are constituteed, the device can realize the free advance of lumbar vertebrae wrench movement car of riding instead of walk and retreat, nimble arrival preset position, make the car of riding instead of walk need not external power such as electric power, just the wrench movement through the lumbar vertebrae just enables the crowd that old person or four limbs have the disease and advances and retreat, in order to accomplish and get the thing, help such as delivery, make positions such as lumbar vertebrae carry out moderate degree motion simultaneously at the in-process of walking instead of walking, play effects such as.

Description

Front and rear reversing device for lumbar vertebra twisting scooter

Technical Field

The invention belongs to the field of reversing, and particularly relates to a front and rear reversing device for a lumbar vertebra wriggling scooter.

Background

The human body is affected by the factors of self weight, age aging and other external gravity, pressure, occupational habitual posture, natural disasters, human accidents and the like for a long time, so that various defects or disabilities can occur to the human body, the diseases bring pains and discomfort to cervical vertebra, lumbar vertebra, upper limbs, lower limbs and the like for patients, for people who have physiological problems of legs and feet, walking aid products undoubtedly become necessary products for life of the problems, the common walking aid products at present are wheelchairs, armrests and walking sticks, but the walking aid products can be used only by keeping arms healthy and powerful, but if the arms of the people have diseases at the same time and cannot drive the existing walking aid products, the common walking aid products at present can not be used normally, but if the arms of the people have diseases at the same time, the invention provides a lumbar vertebra twisting mobility scooter at the early stage (applied for national patents), the scooter does not need external power such as electric power, enables old people or people with diseases on four limbs to walk instead of walk only by the twisting of the lumbar vertebrae so as to assist in finishing the help of fetching, delivering and the like, enables the lumbar vertebrae and other parts to move moderately in the walking instead of walk process, plays roles of rehabilitation, body building and the like, but the scooter can only move forwards and can not move backwards and is difficult to easily reach the wanted position, in order to solve the problem, the invention provides a front and back reversing device for the lumbar vertebrae twisting scooter, and the invention of the early-stage lumbar vertebrae twisting scooter has the following specific technical scheme:

referring to fig. 1-7, a lumbar-twisting scooter, the body of which mainly comprises a double-ratchet bevel gear one-way mechanism, a chain transmission mechanism and a tricycle carrier, wherein the double-ratchet bevel gear one-way mechanism and the chain transmission mechanism are respectively supported by the tricycle carrier, two ends of a double-ratchet shaft 17 of the double-ratchet bevel gear one-way mechanism are respectively fixedly connected with a right wheel 6 and a left wheel 8 of the tricycle carrier, a driven sprocket shaft 9 of the double-ratchet bevel gear one-way mechanism is fixedly connected with a driven sprocket 10 of the chain transmission mechanism, the driven sprocket shaft 9 of the double-ratchet bevel gear one-way mechanism is simultaneously installed in bearing holes in a supporting plate 3 and a box body 7 of the tricycle carrier, and is simultaneously supported by the supporting plate 3 and the box body 7 and can freely rotate, and a driving sprocket 12 of the chain transmission mechanism is fixedly.

The double-ratchet bevel gear one-way mechanism is characterized by mainly comprising a driven sprocket shaft 9, a right ratchet bevel gear 15, a left ratchet bevel gear 16, a double-ratchet shaft 17, a double-meshing bevel gear 18, a left ratchet bevel gear 19 and a right ratchet bevel gear 20, wherein the right ratchet bevel gear 20 is arranged between the right ratchet bevel gear 15 and the double-ratchet shaft 17, the left ratchet bevel gear 19 is arranged between the left ratchet bevel gear 16 and the double-ratchet shaft 17, the right ratchet bevel gear 20 ensures that the right ratchet bevel gear 15 and the double-ratchet shaft 17 rotate clockwise synchronously, the right ratchet bevel gear 15 idles on the double-ratchet shaft 17 during anticlockwise rotation, the left ratchet bevel gear 19 ensures that the left ratchet bevel gear 16 and the double-ratchet shaft 17 rotate clockwise synchronously, the left ratchet bevel gear 16 idles on the double-ratchet shaft 17 during anticlockwise rotation, the right ratchet bevel gear 15 and the left ratchet bevel gear 16 are respectively meshed with the double-meshing bevel gear 18, and the right ratchet bevel, a double-meshing bevel gear 18 is fixed to the driven sprocket shaft 9.

The tricycle carrier mainly comprises a faucet 1, a seat 2, a supporting plate 3, a tricycle supporting frame 4, a front wheel 5, a right wheel 6, a box body 7, a left wheel 8, a driving chain wheel shaft 13 and a seat cushion 14, wherein the supporting plate 3 is fixedly connected in the box body 7, the seat 2 and the seat cushion 14 are fixedly connected on the driving chain wheel shaft 13, the driving chain wheel shaft 13 is arranged in a bearing hole of the tricycle supporting frame 4 and is supported by the tricycle supporting frame 4 and can freely rotate on the tricycle supporting frame 4, the faucet 1 is arranged on the front wheel 5, and the tricycle supporting frame 4 is fixedly connected with the box body 7 and is supported by the front wheel 5, the right wheel 6 and the left wheel 8.

When the lumbar vertebra wriggling car of riding instead of walk as needs, at first sit the old person or the crowd that four limbs have the disease on the seat 2 of car of riding instead of walk, the tap 1 of car of riding instead of walk is being held up to both hands, through the wriggling about the lumbar vertebra, through chain drive mechanism and the transmission of two spine bevel gear single direction mechanism, the car of riding instead of walk is wriggled to drive lumbar vertebra, two spine bevel gear single direction mechanism have effectively guaranteed no matter the lumbar vertebra is wriggled left (clockwise) or right (anticlockwise), the homoenergetic drives car of riding instead of walk and gos forward, efficiency is greatly improved.

When the lumbar vertebrae is twisted leftwards (clockwise), the double-meshed bevel gear 18 is also twisted leftwards (clockwise) by power through the driving sprocket 12, the chain 11 and the driven sprocket 10, because both sides of the double-meshed bevel gear 18 are simultaneously meshed with the right ratchet bevel gear 15 and the left ratchet bevel gear 16, at this time, the right ratchet bevel gear 15 rotates clockwise, the left ratchet bevel gear 16 rotates anticlockwise, the right ratchet bevel gear 15 and the double ratchet shaft 17 rotate clockwise due to the right ratchet wheel 20, the right ratchet bevel gear 15 idles on the double ratchet shaft 17 when rotating anticlockwise, the left ratchet bevel gear 19 ensures that the left ratchet bevel gear 16 and the double ratchet shaft 17 rotate clockwise, the left ratchet bevel gear 16 idles on the double ratchet shaft 17 when rotating anticlockwise, so that the right ratchet bevel gear 15 and the double ratchet shaft 17 rotate clockwise, the left ratchet bevel gear 16 idles on the double ratchet shaft 17, the double ratchet shaft 17 is driven by the right ratchet bevel gear 15 to rotate clockwise, the double-ratchet shaft 17 drives the right wheel 6 and the left wheel 8 to rotate clockwise, and the scooter advances by twisting the lumbar vertebrae.

When the lumbar vertebrae is twisted rightward (counterclockwise), the double-meshed bevel gear 18 is also twisted rightward (counterclockwise) by power through the driving sprocket 12, the chain 11 and the driven sprocket 10, because both sides of the double-meshed bevel gear 18 are simultaneously meshed with the right ratchet bevel gear 15 and the left ratchet bevel gear 16, at this time, the right ratchet bevel gear 15 rotates counterclockwise, the left ratchet bevel gear 16 rotates clockwise, and because the right ratchet 20 ensures that the right ratchet bevel gear 15 rotates clockwise with the double-ratchet shaft 17, the right ratchet bevel gear 15 idles on the double-ratchet shaft 17 when rotating counterclockwise, the left ratchet 19 ensures that the left ratchet bevel gear 16 rotates clockwise with the double-ratchet shaft 17, and the left ratchet bevel gear 16 idles on the double-ratchet shaft 17 when rotating counterclockwise, at this time, the right ratchet bevel gear 15 idles on the double-ratchet shaft 17, the left ratchet bevel gear 16 rotates clockwise with the double-ratchet shaft 17, and the double-ratchet shaft 17 is driven to rotate clockwise by the left ratchet bevel gear, the double-ratchet shaft 17 drives the right wheel 6 and the left wheel 8 to rotate clockwise, and the scooter advances by twisting the lumbar vertebrae.

No matter the lumbar vertebrae is twisted leftwards (clockwise) or rightwards (anticlockwise), the double-ratchet shaft 17 can be driven to rotate clockwise, the double-ratchet shaft 17 can drive the right wheel 6 and the left wheel 8 to rotate clockwise, and the scooter can be driven to advance.

Disclosure of Invention

The purpose of the invention is as follows: the invention provides a lumbar twisting scooter front and rear reversing device, which can realize free forward and backward movement of the lumbar twisting scooter and flexibly reach a preset position, so that the scooter does not need external power such as electric power and the like, can enable old people or people with diseases on four limbs to move forward and backward only by twisting the lumbar, is convenient to complete the help of fetching, delivering and the like, enables the lumbar and other parts to move appropriately in the process of walking instead of walking, and plays roles of rehabilitation, body building and the like.

The technical scheme of the invention is as follows: a front and rear reversing device for a lumbar-twisting scooter mainly comprises a supporting plate 3, a vehicle supporting frame 4, a right wheel 6, a box body 7, a left wheel 8, a double-ratchet shaft 17, a front and rear shift fork 21, an upper bevel gear 22, a reversing transmission shaft 23, a lower bevel gear 24, a duplex sliding bevel gear 25, a spline shaft 26, a driving bevel gear 27, a locking groove 29 and a supporting frame 30 and is characterized in that the duplex sliding bevel gear 25 is a duplex sliding bevel gear, the inside of the duplex sliding bevel gear is a spline groove, the spline shaft 26 is a spline shaft, the duplex sliding bevel gear 25 is assembled on the spline shaft 26 and can move left and right on the spline shaft 26, and a snap ring 28 of the front and rear shift fork 21 is freely sleeved on the duplex sliding bevel gear 25 and can freely rotate on the duplex sliding bevel gear 25.

The front and rear shift forks 21 are composed of snap rings 28, tension springs 31, front and rear shift fork sleeves 32, front and rear shift fork sleeve rods 33 and hooks 34, the hooks 34 and the snap rings 28 are respectively fixedly connected to two ends of the front and rear shift forks 21, the front and rear shift fork sleeve rods 33 can move in the front and rear shift fork sleeves 32, two ends of the tension springs 31 are respectively connected with the front and rear shift fork sleeves 32 and the front and rear shift fork sleeve rods 33, and the hooks 34 of the front sections of the front and rear shift forks 21 are abutted to grooves of the locking grooves 29 by the tension springs 31.

The locking groove 29 is internally provided with three grooves which respectively lock the front and rear shifting forks 21 at left, middle and right positions, when the front and rear shifting forks 21 are locked at the left end position, the right end bevel gear of the duplex sliding bevel gear 25 is meshed with the right end gear of the lower bevel gear 24, when the front and rear shifting forks 21 are locked at the right end position, the left end bevel gear of the duplex sliding bevel gear 25 is meshed with the left end gear of the lower bevel gear 24, when the front and rear shifting forks 21 are locked at the middle end position, the left end bevel gear and the right end bevel gear of the duplex sliding bevel gear 25 are not meshed with the lower bevel gear 24.

The upper bevel gear 22 and the lower bevel gear 24 are fixedly connected to the upper end and the lower end of the reversing transmission shaft 23 respectively, the upper bevel gear 22 is meshed with the driving bevel gear 27, the driving bevel gear 27 is fixedly connected to the double-ratchet shaft 17, the two ends of the spline shaft 26 are fixedly connected to the right wheel 6 and the left wheel 8 respectively, the front shift fork 21 and the rear shift fork 21 are supported and guided by the supporting frame 30, the double-ratchet shaft 17, the reversing transmission shaft 23 and the spline shaft 26 are mounted on the supporting plate 3 and the box body 7, the supporting plate 3 is fixedly connected to the box body 7, and the box body 7, the locking groove 29 and the supporting frame 30 are fixedly connected to the.

The invention has the beneficial effects that: the device can realize that the lumbar vertebrae wriggling car of riding instead of walk freely gos forward and retreat, and nimble arrival preset position makes the car of riding instead of walk need not external power such as electric power, just enables old person or the crowd that four limbs have the disease through the wriggling of lumbar vertebrae and gos forward and retreat to help such as article, delivery are conveniently accomplished to make positions such as lumbar vertebrae carry out moderate motion simultaneously at the in-process of walking instead of walk, play effects such as recovery and body-building.

Drawings

FIG. 1 is a first three-dimensional view of a lumbar wriggling scooter without a front and back reversing device and without a forward and backward moving function;

FIG. 2 is a three-dimensional view of a lumbar vertebra wriggling scooter without a front and back reversing device and without a forward and backward moving function;

FIG. 3 is a three-dimensional view of a lumbar wriggling scooter without a front and back reversing device and without a forward and backward moving function;

FIG. 4 is a first assembly view of the double pawl bevel gear one way mechanism and the chain drive mechanism;

FIG. 5 is a second assembly view of the double pawl bevel gear one way mechanism and the chain drive mechanism;

FIG. 6 is a double ratchet bevel gear one-way mechanism;

FIG. 7 is a partial three-dimensional view of a double-spine bevel gear one-way mechanism;

FIG. 8 is a first three-dimensional view of a lumbar vertebra wriggling scooter with forward and backward movement function, which is additionally provided with a forward and backward reversing device;

FIG. 9 is a three-dimensional view of a lumbar vertebra wriggling scooter with forward and backward movement function, which is additionally provided with a forward and backward reversing device;

FIG. 10 is a three-dimensional view of a lumbar vertebra wriggling scooter with forward and backward movement function with a front and back reversing device;

FIG. 11 is a first internal transmission diagram of a rear lumbar vertebra twisting scooter provided with a front and rear reversing device;

FIG. 12 is a second internal transmission diagram of the rear lumbar-twisting scooter equipped with a front and rear reversing device;

FIG. 13 is a third transmission diagram of the internal transmission of the rear lumbar-twisting scooter with the front and rear reversing devices;

FIG. 14 is a fourth transmission diagram of the internal transmission of the lumbar wriggling scooter with the front and rear reversing devices;

FIG. 15 is a fifth transmission diagram of the internal lumbar vertebra twisting scooter with the front and rear reversing devices;

FIG. 16 is a partial three-dimensional view I of the front and rear reversing device;

FIG. 17 is a partial three-dimensional view of the front and rear reversing devices;

FIG. 18 is a partial three-dimensional view of the front and rear reversing devices;

FIG. 19 is a partial three-dimensional view of the front and rear reversing devices;

FIG. 20 is a partial cross-sectional view of the front and rear shift forks;

fig. 21 is a support plate and a case.

Wherein the content of the first and second substances,

1. the bicycle comprises a handle, a seat, a support plate, a bicycle support frame, a front wheel, a right wheel, a box body, a left wheel, a driven sprocket shaft, a chain, a driving sprocket shaft, a seat cushion, a right ratchet bevel gear, a left ratchet bevel gear, a right ratchet bevel gear, a double ratchet shaft, a double-meshed bevel gear, a right ratchet, a left ratchet, a right ratchet, a front gear shifting fork, a rear gear shifting fork, a chain, a driving sprocket, a reversing transmission shaft, a lower bevel gear, a double-meshed sliding bevel gear, a spline shaft, a driving bevel gear, a snap ring, a locking groove, a supporting frame, a tension spring, a front gear shifting fork, a rear gear shifting fork, a front gear shifting fork, a rear

Detailed Description

As shown in fig. 1-7, no matter the lumbar vertebrae is twisted leftwards (clockwise) or rightwards (anticlockwise), after being transmitted by the double-ratchet bevel gear one-way mechanism and the chain transmission mechanism, the double-ratchet shaft 17 can rotate clockwise, when the double-ratchet shaft 17 rotates clockwise, the power thereof drives the lower bevel gear 24 to rotate through the driving bevel gear 27, the upper bevel gear 22 and the reversing transmission shaft 23, namely, no matter the lumbar vertebrae is twisted leftwards (clockwise) or rightwards (anticlockwise), the lower bevel gear 24 can be driven to rotate in one-way.

As shown in fig. 8-21, when the lumbar vertebra is twisted to rotate the lower bevel gear 24 in a unidirectional way, and when the front and rear shift forks 21 are moved to lock the front and rear shift forks 21 at the left end recesses in the locking grooves 29, the front and rear shift forks 21 fix the duplex sliding bevel gear 25 at the leftmost position through the snap ring 28, the right bevel gear of the duplex sliding bevel gear 25 is in meshing transmission with the right end teeth of the lower bevel gear 24, the right end bevel gear of the duplex sliding bevel gear 25 drives the duplex sliding bevel gear 25 to rotate counterclockwise, the duplex sliding bevel gear 25 drives the spline shaft 26 and the right wheel 6 and the left wheel 8 at the two ends thereof to rotate counterclockwise, and the lumbar vertebra is twisted to retreat.

When the lumbar is twisted to enable the lower bevel gear 24 to rotate in a unidirectional mode, and when the front-gear shifting fork 21 and the rear-gear shifting fork 21 are moved to enable the front-gear shifting fork and the rear-gear shifting fork to be locked in the right end groove position in the locking groove 29, the front-gear shifting fork and the rear-gear shifting fork 21 enable the duplex sliding bevel gear 25 to be fixed in the rightmost end position through the clamping ring 28, at the moment, the left end bevel gear of the duplex sliding bevel gear 25 is in meshing transmission with the left end tooth of the lower bevel gear 24, the left end bevel gear of the duplex sliding bevel gear 25 drives the duplex sliding bevel gear 25 to rotate clockwise, the duplex sliding bevel gear 25 drives the spline shaft 26 and the right wheel 6 and the.

When the lumbar is twisted to enable the lower bevel gear 24 to rotate in a unidirectional mode, and when the front-gear shifting fork 21 and the rear-gear shifting fork 21 are moved to enable the front-gear shifting fork and the rear-gear shifting fork to be locked in the middle-end groove position in the locking groove 29, the front-gear shifting fork and the rear-gear shifting fork 21 enable the duplex sliding bevel gear 25 to be fixed in the middle-end position through the clamping ring 28, the left-end bevel gear and the right-end bevel gear of the duplex sliding bevel gear 25 are not meshed with the lower bevel gear 24, the duplex sliding bevel gear 25 is separated from the lower bevel gear 24, the lower bevel gear 24 is in an idle rotation state at the moment, the lower bevel gear 24 cannot drive the spline shaft 26 and the right wheel 6 and the left.

Namely, when the front and rear shift forks 21 are respectively locked at the left, middle and right positions in the locking grooves 29, the lumbar vertebra twisting walker is respectively in three states of retreating, stopping and advancing, and the lumbar vertebra twisting walker is freely advanced and retreated by changing the locking positions of the front and rear shift forks 21, so as to flexibly reach a preset position.

Claims (4)

1. A front and rear reversing device for a scooter by lumbar vertebra twisting mainly comprises a supporting plate, a scooter supporting frame, a right wheel, a box body, a left wheel, a double ratchet shaft, a front and rear shift fork, an upper bevel gear, a reversing transmission shaft, a lower bevel gear, a duplex sliding bevel gear, a spline shaft, a driving bevel gear, a locking groove and a supporting frame.

2. The front and rear reversing device for the lumbar-twisting scooter according to claim 1, wherein the front and rear shift forks are composed of a snap ring, a tension spring, front and rear shift fork sleeves, front and rear shift fork rods and a hook, the hook and the snap ring are respectively fixed at two ends of the front and rear shift forks, the front and rear shift fork rods can move in the front and rear shift fork sleeves, two ends of the tension spring are respectively connected with the front and rear shift fork sleeves and the front and rear shift fork rods, and the tension spring enables the hook at the front section of the front and rear shift forks to abut against the groove of the locking groove.

3. The front and rear reversing device for the scooter with twisted lumbar vertebrae according to claim 1, wherein the locking groove has three grooves, the three grooves respectively lock the front and rear shift forks at left, middle and right positions, the right bevel gear of the duplex sliding bevel gear is engaged with the right teeth of the lower bevel gear when the front and rear shift forks are locked at the left end position, the left bevel gear of the duplex sliding bevel gear is engaged with the left teeth of the lower bevel gear when the front and rear shift forks are locked at the right end position, and the left bevel gear and the right bevel gear of the duplex sliding bevel gear are not engaged with the lower bevel gear when the front and rear shift forks are locked at the middle end position.

4. The device of claim 1, wherein the upper bevel gear and the lower bevel gear are respectively fixed to the upper end and the lower end of the reversing transmission shaft, the upper bevel gear is engaged with the drive bevel gear, the drive bevel gear is fixed to the double-ratchet shaft, the two ends of the spline shaft are respectively fixed to the right wheel and the left wheel, the front-rear shifting fork is supported and guided by the supporting frame, the double-ratchet shaft, the reversing transmission shaft and the spline shaft are respectively mounted on the supporting plate and the box body, the supporting plate is fixed to the box body, and the box body, the locking groove and the supporting frame are fixed to the vehicle supporting frame.

Images