CN210971412U - Waist pendulum driving tricycle deformation device - Google Patents

Abstract

The utility model relates to a waist pendulum driving tricycle deforming device, the body of which mainly comprises a crank, a backrest rotating pin, an elastic tensioning rope, a connecting rod, a pedal plate dowel bar, a pedal plate driving rod, a standing electric power push rod, a pedal plate connecting rod, a pedal plate, two three-pin nail rods symmetrically arranged at two sides of a seat, two backrest connecting rods, two dual-role rods, two transition rods and two cantilever supporting rods, the device can enable the waist pendulum driving tricycle to deform into three states (sitting, standing and lying states) so as to enable a user to experience better comfort, help the user to more conveniently finish fetching objects, delivering and other help, the user can be effectively prevented from sitting for a long time in the deforming process, the parts such as lumbar vertebrae and the like can properly move, the effects of rehabilitation and body building are achieved, the tricycle is driven to walk simultaneously in the deformation processes of the sitting, lying and lying states, the user can walk while deforming and reach the preset position in the moderate exercises of body building, rehabilitation and the like.

Description

Waist pendulum driving tricycle deformation device

Technical Field

The invention belongs to the field of mobility scooter, and particularly relates to a deformation device of a waist swing driven tricycle.

Background

The human body is affected by factors such as 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 patients such as cervical vertebra, lumbar vertebra, upper limbs, lower limbs and the like, for people who have physiological problems of legs and feet, the walking aid product is undoubtedly a life essential product of the problem, the conventional walking aid products are wheelchairs, handrails and walking sticks, but the walking aid products can be used only by being fully strong in arms, but if the arms of the people have the diseases at the same time and the conventional walking aid product cannot be driven, the conventional walking aid product cannot be normally used, therefore, the tricycle driven by the waist swing does not need external power such as electric power and the like, and can drive the tricycle to move forwards or backwards by the aged or people with the diseases of the four limbs only through the forward and backward swing of the lumbar vertebra, so as to help to complete fetching, delivering and the like, and simultaneously make the lumbar vertebra and other parts do proper movement in the process of walking and walking, thereby playing the roles of rehabilitation, body building and the like. In order to enable the old or the disabled to experience better comfort in the process of walking with a walking aid, help a user to more conveniently finish the help of fetching, delivering and the like and effectively avoid the user (the old or the patient) from sitting for a long time, the team of the invention provides a deformation device of a waist pendulum driven tricycle on the basis of the waist pendulum driven tricycle, and the specific technical scheme of the waist pendulum driven tricycle invented at the earlier stage is as follows:

referring to fig. 1-17, a waist swing driving tricycle, the body of which mainly comprises a double-ratchet bevel gear one-way mechanism 40, a crank-rocker backrest mechanism 41, a tricycle support frame 42 and a reversing mechanism 43, wherein a swing backrest 14 of the crank-rocker backrest mechanism 41 and a seat 2 of the tricycle support frame 42 form a revolute pair through a backrest swing pin 38, one end of an elastic tensioning rope 36 of the crank-rocker backrest mechanism 41 is fixedly connected to the seat 2 of the tricycle support frame 42, a primary driven bevel gear 10 of the crank-rocker backrest mechanism 41 is fixedly connected to a double-bevel gear shaft 9 of the double-ratchet bevel gear one-way mechanism 40, a driving bevel gear 27 of the reversing mechanism 43 is fixedly connected to a double-ratchet shaft 17 of the double-ratchet bevel gear one-way mechanism 40, two ends of a spline shaft 26 of the reversing mechanism 43 are respectively fixedly connected to a right wheel 6 and a left wheel 8, a locking groove 29 of the reversing mechanism 43 and a support frame, the double bevel gear shaft 9 and the double ratchet shaft 17 of the double-ratchet bevel gear one-way mechanism 40, the reversing transmission shaft 23 and the spline shaft 26 of the reversing mechanism 43, and the crank support 35 of the crank rocker backrest mechanism 41 are all arranged on the box body 7 and the support plate 3 of the vehicle support frame 42.

The crank rocker backrest mechanism 41 mainly comprises a first-stage driven bevel gear 10, a first-stage driving bevel gear 11, a crank shaft 12, a crank 13, a swinging backrest 14, a crank support 35, an elastic tensioning rope 36, a backrest rotating pin 37, a backrest swinging pin 38, a crank rotating pin 39 and a connecting rod 44, the crank shaft 12 and the crank rotating pin 39 are used as fulcrums and are connected with the backrest rotating pin 37 through the crank rotating pin 39, the crank 13, the connecting rod 44 and the swinging backrest 14 form the crank rocker mechanism, the first-stage driving bevel gear 11 and the crank 13 are fixedly connected to the crank shaft 12, the first-stage driving bevel gear 11 is meshed with the first-stage driven bevel gear 10, and one end of the elastic tensioning rope 36 is fixedly connected to one side of the swinging backrest 14.

The double-ratchet bevel gear one-way mechanism 40 mainly comprises a double bevel gear 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 wheel 19 and a right ratchet wheel 20, wherein the right ratchet wheel 20 is arranged between the right ratchet bevel gear 15 and the double ratchet shaft 17, the left ratchet wheel 19 is arranged between the left ratchet bevel gear 16 and the double ratchet shaft 17, the right ratchet wheel 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 counterclockwise 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 counterclockwise 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 gear 15 and the left ratchet bevel gear 16 rotate, the double-meshed bevel gear 18 is fixedly connected to the double bevel gear shaft 9.

The reversing mechanism 43 mainly comprises a front-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 drive bevel gear 27, a locking groove 29 and a support 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, a snap ring 28 of the front-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-rear shift fork 21 comprises a snap ring 28, a tension spring 31, a front-rear shift fork sleeve 32, a front-rear shift fork sleeve 33 and a hook 34, the hook 34 and the snap ring 28 are respectively fixedly connected at two ends of the front-rear shift fork 21, the front-rear shift fork sleeve 33 can, two ends of a tension spring 31 are respectively connected with a front and rear shift fork sleeve 32 and a front and rear shift fork sleeve rod 33, the tension spring 31 enables a hook 34 at the front section of the front and rear shift fork 21 to be close to a groove of a locking groove 29, the locking groove 29 is internally provided with three grooves which respectively enable the front and rear shift fork 21 to be locked at a left position, a middle position and a right position, when the front and rear shift fork 21 is locked at a left end position, a right bevel gear of a duplex sliding bevel gear 25 is meshed with a right end tooth of a lower bevel gear 24, when the front and rear shift fork 21 is locked at a right end position, a left end bevel gear of the duplex sliding bevel gear 25 is meshed with a left end tooth of the lower bevel gear 24, when the front and rear shift fork 21 is locked at a middle end position, a left end bevel gear and a right end bevel gear of the duplex sliding bevel gear 25 are not meshed with the lower bevel gear 24, an upper bevel gear 22 and a lower bevel gear 24, the front and rear shift forks 21 are supported and guided by a support bracket 30.

The vehicle supporting frame 42 mainly comprises a faucet 1, a seat 2, a supporting plate 3, a vehicle supporting frame 4, a front wheel 5, a right wheel 6, a box body 7 and a left wheel 8, wherein the supporting plate 3 is fixedly connected in the box body 7, the faucet 1 is installed on the front wheel 5, the seat 2 is fixedly connected on the vehicle supporting frame 4, and the vehicle supporting frame 4 is fixedly connected with the box body 7 and supported by the front wheel 5, the right wheel 6 and the left wheel 8.

When the tricycle needs to move forward or backward, the old or people with diseases on four limbs are firstly seated on the seat 2 of the tricycle, the two hands hold the faucet 1 of the tricycle, the back of the tricycle is abutted against the swinging backrest 14, the swinging backrest 14 swings back and forth under the double actions of the back and forth swing of the lumbar, the pressure of the lumbar and the tension of the elastic tensioning rope 36, and the tricycle is driven to move forward and backward by the back and forth swing driving force through the crank rocker backrest mechanism 41, the double-spine bevel gear one-way mechanism 40 and the reversing mechanism 43.

When the swinging backrest 14 swings back and forth under the double action of the lumbar vertebra pressure of a person and the tension of the elastic tensioning rope 36, the swinging backrest 14 drives the crank 13 to rotate under the force transmission of the connecting rod 44, and the crank 13 drives the double-bevel gear shaft 9 and the double-meshed bevel gear 18 to rotate through the crank shaft 12, the primary driving bevel gear 11 and the primary driven bevel gear 10.

When the swinging backrest 14 drives the crank 13 to rotate anticlockwise, the double-meshing bevel gear 18 rotates clockwise through meshing transmission of the first-stage driving bevel gear 11 and the first-stage driven bevel gear 10, because both sides of the double-meshing bevel gear 18 are simultaneously meshed with the right ratchet bevel gear 15 and the left ratchet bevel gear 16, at the moment, the right ratchet bevel gear 15 rotates clockwise, the left ratchet bevel gear 16 rotates anticlockwise, and because the right ratchet wheel 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, therefore, the right ratchet bevel gear 15 and the double ratchet shaft 17 rotate clockwise, and the left ratchet bevel gear 16 idles on the double ratchet shaft 17, the double ratchet shaft 17 is driven to rotate clockwise by the right ratchet bevel gear 15.

When the swinging backrest 14 drives the crank 13 to rotate clockwise, the double-meshing bevel gear 18 rotates anticlockwise through meshing transmission of the first-stage driving bevel gear 11 and the first-stage driven bevel gear 10, because both sides of the double-meshing bevel gear 18 are simultaneously meshed with the right ratchet bevel gear 15 and the left ratchet bevel gear 16, at the moment, the right ratchet bevel gear 15 rotates anticlockwise, the left ratchet bevel gear 16 rotates clockwise, and because the right ratchet wheel 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, at the moment, the right ratchet bevel gear 15 idles on the double ratchet shaft 17, the left ratchet bevel gear 16 and the double ratchet shaft 17 rotate clockwise synchronously, the double ratchet shaft 17 is driven to rotate clockwise by the left ratchet bevel gear 16.

No matter the lumbar swing backrest 14 drives the crank 13 to rotate clockwise or anticlockwise, the double-ratchet shaft 17 can be driven to rotate clockwise, and when the double-ratchet shaft 17 rotates clockwise, the power of the double-ratchet shaft drives the lower bevel gear 24 to rotate unidirectionally through the driving bevel gear 27, the upper bevel gear 22 and the reversing transmission shaft 23.

When the lower bevel gear 24 rotates in a single direction, and when the front and rear shift forks 21 are moved to be locked at the left end groove position in the locking groove 29, the front and rear shift forks 21 fix the duplex sliding bevel gear 25 at the leftmost end position through the snap ring 28, at this time, the right end bevel gear of the duplex sliding bevel gear 25 is in meshing transmission with the right end gear 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 anticlockwise, 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 of the spline shaft to rotate anticlockwise, and at this time, the waist pendulum drives the tricycle to retreat.

When the lower bevel gear 24 rotates in a unidirectional rotation manner, and when the front and rear shift forks 21 are moved to be locked at the right end groove position in the locking groove 29, the front and rear shift forks 21 fix the duplex sliding bevel gear 25 at the rightmost end position through the snap 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 gear 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 left wheel 8 at the two ends of the spline shaft to rotate clockwise, and at the moment, the waist pendulum drives the tricycle to move forward.

When the lower bevel gear 24 rotates in a unidirectional way, and when the front and rear shift forks 21 are moved to be locked at the middle-end groove position in the locking groove 29, the front and rear shift forks 21 fix the duplex sliding bevel gear 25 at the middle-end position through the snap ring 28, at this time, 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, at this time, the lower bevel gear 24 is in an idle rotation state, the lower bevel gear 24 cannot drive the spline shaft 26 and the right wheel 6 and the left wheel 8 at the two ends of the spline shaft to rotate, and at this time, the waist swing driving tricycle is in a state.

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 tricycle driven by the waist swing is respectively in three states of retreating, stopping and advancing, the tricycle driven by the waist swing can freely advance and retreat by changing the locking positions of the front and rear shift forks 21, and can flexibly reach a preset position.

Disclosure of Invention

The purpose of the invention is as follows: the invention develops a deformation device of a tricycle driven by a waist pendulum, which can enable the tricycle driven by the waist pendulum to deform into three states (three states of sitting, standing and lying) so as to enable a user to experience better comfort and help the user to more conveniently finish fetching, delivering and the like, and can effectively prevent the user (old people or patients) from sitting for a long time in the deformation process, enable the lumbar vertebra and other parts to move appropriately, play roles of rehabilitation, fitness and the like, particularly drive the tricycle to walk while deforming in the deformation process of the sitting, standing and lying states, and reach a preset position in the appropriate movement of the fitness, the rehabilitation and the like.

The technical scheme of the invention is as follows: a deformation device for a waist swing driven tricycle mainly comprises a tricycle swing backrest 14, a support frame 4, a crank 13, a backrest rotating pin 37, an elastic tensioning rope 36, a connecting rod 44, a crank rotating pin 39, a pedal dowel bar 52, a pedal driving rod 51, a seat support 54, an electric push rod support 53, a standing electric push rod 57 and a pedal connecting rod 55, the chair comprises a pedal plate 56, a chair 2, a backrest connecting rod upper rotating pin 59, a push rod rotating pin 58, two three-pin rods 46 symmetrically arranged on two sides, two backrest connecting rods 45 symmetrically arranged on two sides, two double-angle rods 48 symmetrically arranged on two sides, two transition rods 47 symmetrically arranged on two sides, two cantilever support rods 50 symmetrically arranged on two sides, two support rotating pins 49 symmetrically arranged on two sides, two transition rod rotating pins 62 symmetrically arranged on two sides, two backrest connecting rod lower rotating pins 61 symmetrically arranged on two sides and two backrest lower rotating pins 60 symmetrically arranged on two sides.

The connecting rod 44 is a telescopic rod with variable length, the body of the connecting rod is mainly composed of an inner rod 63, an outer rod 67, a compression screw 64, a compression spring 65 and compression balls 66, a plurality of telescopic locking grooves 68 are formed in the inner rod 63, a threaded hole is formed in the outer rod 67 and is meshed with the compression screw 64, the compression screw 64 presses the locking balls 66 into the telescopic locking grooves 68 through the compression spring 65, the compression force of the compression spring 65 is adjusted through the compression screw 64, when the axial outward force is large, the locking balls 66 can roll into the threaded hole of the outer rod 67 against the compression force of the compression spring 65, the locking balls 66 are separated from the telescopic locking grooves 68, the inner rod 63 can slide in the outer rod 67, the connecting rod 44 achieves the length expansion and contraction, when the axial outward force is not large enough, the locking balls 66 are pressed into the telescopic locking grooves 68, and the length of the connecting.

The crank 13, the connecting rod 44 and the swinging backrest 14 are connected through a crank rotating pin 39 and a backrest rotating pin 37 to form a crank rocker mechanism, the elastic tensioning rope 36 is an elastic pulling rope, and two ends of the elastic tensioning rope are respectively connected with the swinging backrest 14 and the seat 2. The backrest connecting rod 45 is respectively connected with the swinging backrest 14 and the three-pin rod 46 through a backrest connecting rod upper rotating pin 59 and a backrest connecting rod lower rotating pin 61, two ends of the pedal transmission rod 52 are respectively connected with a pedal connecting rod 55 and a pedal driving rod 51, the pedal connecting rod 55 is fixedly connected on the pedal 56, the three-pin rod 46, the transition rod 47, the double-angle rod 48 and the seat 2 form a set of hinge four-bar mechanism through a backrest lower rotating pin 60, a transition rod rotating pin 62, the pedal driving rod 51 and a supporting rotating pin 49, two ends of the standing electric push rod 57 are respectively connected with a push rod rotating pin 58 and an electric push rod support 53 through hinges, the push rod rotating pin 58 and the seat 2 form a rotating pair, the standing electric push rod 57 can freely stretch under the electric action and has a self-locking function, the swinging backrest 14 and the seat 2 form a rotating pair through the backrest lower rotating pin 60, the seat 2 and the pedal 56 form a rotating pair through a supporting rotating pin 49, the supporting rotating pin 49 is fixedly connected to the cantilever supporting rod 50, the cantilever supporting rod 50 is fixedly connected to the seat support 54, and the seat support 54 is fixedly connected to the vehicle supporting frame 4.

The invention has the beneficial effects that: the device can make the waist pendulum drive tricycle warp three kinds of states (sit upright, stand and three kinds of states of lying), so that the user experiences better comfort, help user's more convenient completion get the thing, help such as delivery, still can effectively avoid user (old person or patient) to sit for a long time at the in-process that warp, make positions such as lumbar vertebrae carry out moderate motion, play effects such as recovered and body-building, especially sit upright, lie two kinds of state deformation in-process and drive the tricycle walking simultaneously, the while warp the walking, reach preset position in moderate motion such as body-building and recovery.

Drawings

FIG. 1 is a three-dimensional view I of a waist swing driving tricycle;

FIG. 2 is a three-dimensional view of a waist swing driven tricycle;

FIG. 3 is a three-dimensional view of a three-dimensional waist-swing-driven tricycle;

FIG. 4 is a partial three-dimensional view I of the waist swing driving tricycle;

FIG. 5 is a partial three-dimensional view II of the waist swing driving tricycle;

FIG. 6 is a transmission diagram of a double-ratchet bevel gear one-way mechanism, a crank-rocker backrest mechanism and a reversing mechanism I;

FIG. 7 is a transmission diagram of a double-ratchet bevel gear one-way mechanism, a crank-rocker backrest mechanism and a reversing mechanism II;

FIG. 8 is a crank and rocker backrest mechanism;

FIG. 9 is a one-way mechanism and a reversing mechanism of the double-ratchet bevel gear;

FIG. 10 is a double ratchet bevel gear one-way mechanism;

FIG. 11 is a partial view of a double ratchet bevel gear one-way mechanism;

FIG. 12 is a commutation scheme one;

FIG. 13 is a commutation scheme two;

FIG. 14 is a partial three-dimensional view of a front-to-back reversing device;

FIG. 15 is a partial three-dimensional view of the front and rear reversing devices;

FIG. 16 is a partial cross-sectional view of the front and rear shift forks;

FIG. 17 is a support plate and case;

FIG. 18 is a first sitting state diagram of the deformation device of the waist swing driving tricycle;

FIG. 19 is a second view of the waist swing driving tricycle in a sitting position;

FIG. 20 is a third view of the waist swing driving tricycle in a sitting position;

FIG. 21 is a first view of the waist swing driving tricycle lying device in a sitting and standing state;

FIG. 22 is a second view of the waist swing driving tricycle lying device in a sitting and standing state;

FIG. 23 is a view showing the standing state of the reclining device of the waist-swing driven tricycle;

fig. 24 is a link structure view.

Wherein,

1. the automobile seat comprises a faucet, 2 parts of a seat, 3 parts of a supporting plate, 4 parts of an automobile supporting frame, 5 parts of a front wheel, 6 parts of a right wheel, 7 parts of a box body, 8 parts of a left wheel and 9 parts of a left wheel.

A double bevel gear shaft, 10 a first driven bevel gear, 11 a first driving bevel gear, 12 a crank shaft, 13 a crank, 14 a swing backrest, 15 a right ratchet bevel gear, 16 a left ratchet bevel gear, 17 a double ratchet shaft, 18 a double meshing bevel gear, 19 a left ratchet wheel, 20 a right ratchet wheel, 21 a front and back shift fork, 22 an upper bevel gear, 23 a reversing transmission shaft, 24 a lower bevel gear, 25 a double sliding bevel gear, 26 a spline shaft, 27 a driving bevel gear, 28 a snap ring, 29 a locking groove, 30 a support frame, 31 a tension spring, 32 a front and back shift sleeve, 33 a front and back shift sleeve rod, 34 a curved hook, 35 a crank support, 36 a tension rope, 37 a backrest rotating pin, 38 a backrest swinging pin, 39 a crank rotating pin, 40 a double ratchet bevel gear unidirectional mechanism, 41 a crank rocker backrest mechanism, 42. the bicycle comprises a bicycle support frame, 43. a reversing mechanism, 44. a connecting rod, 45. a backrest connecting rod, 46. a three-pin rod, 47. a transition rod, 48. a double-angle rod, 49. a support rotating pin, 50. a cantilever supporting rod, 51. a pedal driving rod, 52. a pedal force transmission rod, 53. an electric push rod support, 54. a seat support, 55. a pedal connecting rod, 56. a pedal, 57. a standing electric push rod, 58. a push rod rotating pin, 59. a backrest connecting rod upper rotating pin, 60. a backrest lower rotating pin, 61. a backrest connecting rod lower rotating pin, 62. a transition rod rotating pin, 63. an inner rod, 64. a compression screw, 65. a compression spring, 66. a locking ball, 67. an outer rod and 68. a telescopic locking groove.

Detailed Description

Referring to fig. 1-24, when the waist-swing-driven tricycle needs to be changed from a sitting state and a lying state, the old or people with diseases on four limbs are seated on the seat 2 of the tricycle, both hands hold the handlebar 1 of the tricycle, the back of the tricycle is abutted against the swinging backrest 14, the swinging backrest 14 swings back and forth under the dual actions of the back and forth swing of the lumbar, the pressure of the lumbar and the tension of the elastic tensioning rope 36, and the tricycle is driven to move forward and backward by the back and forth swing driving force of the back and forth through the crank rocker backrest mechanism 41, the double-ratchet bevel gear one-way mechanism 40 and the reversing mechanism 43.

When the tricycle needs to be changed from a sitting state to a lying state, the tricycle swings backwards through the lumbar, the swing backrest 14 swings downwards clockwise by overcoming the tension of the elastic tensioning rope 36 and taking the backrest swing pin 38 as a fulcrum, the backward swinging force of the lumbar is transmitted through the backrest connecting rod 45, the three-pin rod 46 and the transition rod 47 in sequence, the dual-role rod 48 is driven to rotate upwards and anticlockwise by taking the support rotating pin 49 as a center, the dual-role rod 48 is driven to drive the dual-role rod 48, the pedal driving rod 51, the pedal force transmission rod 52, the pedal connecting rod 55 and the pedal 56 to rotate upwards and anticlockwise around the support rotating pin 49 together, namely, the swing backrest 14 swings downwards and clockwise slowly, the pedal 56 rotates upwards and anticlockwise slowly, and the tricycle is driven by the lumbar to change from the sitting state to the lying state slowly.

When the waist pendulum driving tricycle needs to be changed from a lying state to a sitting state, the lumbar vertebra is slowly lifted upwards, the swinging backrest 14 swings upwards anticlockwise by taking the backrest swinging pin 38 as a fulcrum under the tension of the elastic tensioning rope 36, the tension of the elastic tensioning rope 36 is transmitted through the backrest connecting rod 45, the three-pin rod 46 and the transition rod 47 in sequence, the dual-role rod 48 is driven to rotate downwards clockwise by taking the supporting rotating pin 49 as a center, the dual-role rod 48 is driven to drive the dual-role rod 48, the pedal driving rod 51, the pedal force transmission rod 52, the pedal connecting rod 55 and the pedal 56 to rotate downwards clockwise around the supporting rotating pin 49, namely the swinging backrest 14 slowly swings upwards anticlockwise, the pedal 56 slowly rotates upwards anticlockwise downwards clockwise, and the waist pendulum driving tricycle is slowly changed from the lying state to the sitting state.

Namely: the waist pendulum driving tricycle finishes driving the tricycle to walk simultaneously in the deformation process of two states of sitting, standing and lying, walks while deforming, and reaches a preset position in moderate motions of body building, rehabilitation and the like, the double-ratchet shaft 17 can be driven to rotate clockwise no matter the lumbar swing backrest 14 drives the crank 13 to rotate clockwise or anticlockwise, when the double-ratchet shaft 17 rotates clockwise, the power of the double-ratchet shaft drives the lower bevel gear 24 to rotate unidirectionally through the driving bevel gear 27, the upper bevel gear 22 and the reversing transmission shaft 23, when the front and rear shift forks 21 are respectively locked at the left, middle and right positions in the locking groove 29, the waist pendulum driving tricycle is respectively in three states of retreating, stopping and advancing, the waist pendulum driving tricycle can freely advance and retreat by changing the locking positions of the front and rear shift forks 21, and can flexibly reach the preset position.

When the waist swing driving tricycle needs to be changed from a sitting state to a standing state, the standing electric push rod 57 is electrified and extended, the pushing force pushes the seat 2 to support the rotating pin 49 to swing upwards, namely, the hinged four-bar mechanism consisting of the three-pin rod 46, the transition rod 47, the double-angle rod 48 and the seat 2 is in a stable and motionless state because a person steps on the pedal 56 with double feet, in the process of changing the sitting state to the standing state, the pedal 56 is always in a standing state due to the gravity action of the person, at the moment, under the pushing force of the standing electric push rod 57, the hinged four-bar mechanism respectively rotates by taking the backrest lower rotating pin 60, the transition rod rotating pin 62, the pedal driving rod 51 and the support rotating pin 49 as rotating pins, under the connection and the action of the backrest connecting rod 45, the seat 2 and the swing backrest 14 rotate relatively, but the swing backrest 14 is always maintained in the standing state, namely, the swinging backrest 14 always makes an upward and oblique translation, when the standing electric push rod 57 is electrified and extends to the maximum value, the seat 2 just rotates to the vertical state through the multi-rod linkage, namely, the seat 2, the swinging backrest 14 and the pedal plate 56 are all in the vertical state, three are approximately in a straight line, and at the moment, the waist pendulum drives the tricycle sitting, standing and lying three-state deformation device to complete the change from the sitting state to the standing state.

When the waist swing driving tricycle needs to be changed from a standing state to a sitting state, the standing electric push rod 57 is electrified and shortened, and because a person steps on the pedal plate 56 with two feet, in the process of changing the standing state to the sitting state, the pedal plate 56 is always in a standing state, namely, always in a stable and motionless state due to the gravity action of the person, the standing electric push rod 57 pulls the seat 2 to swing downwards by using the support rotating pin 49, at the moment, under the pulling force of the standing electric push rod 57, the hinge four-bar mechanism respectively rotates by using the backrest lower rotating pin 60, the transition rod rotating pin 62, the pedal plate driving rod 51 and the support rotating pin 49 as rotating pins, and under the connection and the action of the backrest connecting rod 45, the seat 2 and the swinging backrest 14 rotate relatively, but the swinging backrest 14 is always kept in a standing state, namely, the swinging backrest 14 always makes an oblique downward translation.

When the standing electric push rod 57 is electrified and shortened to the minimum value, the seat 2 just rotates to the horizontal state through the multi-rod linkage, namely the seat 2, the swing backrest 14 and the pedal plate 56 all form a Z-shaped state, and at the moment, the waist pendulum drives the tricycle to sit, stand and lie on the tri-state deformation device 1, so that the standing state is changed into the sitting state.

When the waist swing driving tricycle needs to be changed from a sitting state to a standing state and a lying state and walks, the locking ball 66 is pressed into the telescopic locking groove 68 due to insufficient axial external force applied to the connecting rod 44, the length of the connecting rod 44 is stable and unchanged, but when the waist swing driving tricycle needs to be changed from the sitting state to the standing state and walks, the axial external force applied to the connecting rod 44 is larger, the locking ball 66 rolls into the threaded hole of the outer rod 67 against the pressing force of the pressure spring 65, the locking ball 66 is separated from the telescopic locking groove 68, the inner rod 63 slides in the outer rod 67, and the connecting rod 44 achieves telescopic change of the length.

Claims (3)

1. A waist swing driving tricycle deformation device mainly comprises a tricycle swing backrest, a support frame, a crank, a backrest rotating pin, an elastic tensioning rope, a connecting rod, a crank rotating pin, a pedal dowel bar, a pedal driving rod, a seat support, an electric push rod support, a standing electric push rod, a pedal connecting rod, a pedal, a seat, a rotating pin on the backrest connecting rod, a push rod rotating pin, two symmetrically-arranged three-pin rods on two sides, two symmetrically-arranged backrest connecting rods on two sides, two symmetrically-arranged double-angle color rods on two sides, two symmetrically-arranged transition rods on two sides, two symmetrically-arranged cantilever supporting rods on two sides, two symmetrically-arranged supporting rotating pins on two sides, two symmetrically-arranged transition rod rotating pins on two sides, two symmetrically-arranged backrest connecting rod lower rotating pins on two sides and two symmetrically-arranged backrest lower rotating pins on two sides.

2. The device as claimed in claim 1, wherein the connecting rod is a telescopic rod with a variable length, the body of the device is mainly composed of an inner rod, an outer rod, a compression screw, a compression spring and a compression ball, the inner rod is provided with a plurality of telescopic locking grooves, the outer rod is provided with a threaded hole, the threaded hole is engaged with the compression screw, the compression screw presses the compression ball into the telescopic locking grooves through the compression spring, the compression force of the compression spring is adjusted through the compression screw, when the external force of the shaft is large, the compression ball can roll into the threaded hole of the outer rod to separate from the telescopic locking grooves, the inner rod can slide in the outer rod, the connecting rod realizes the length expansion, when the external force of the shaft is not large enough, the compression ball is pressed into the telescopic locking grooves, and the length of the connecting rod is stable.

3. The device as claimed in claim 1, wherein the crank, the connecting rod, and the swing backrest are connected to form a crank rocker mechanism via a crank rotation pin and a backrest rotation pin, the elastic tension rope is an elastic tension rope, both ends of the elastic tension rope are respectively connected to the swing backrest and the seat, the backrest connecting rod is respectively connected to the swing backrest and the triple-pin rod via a rotation pin on the backrest connecting rod and a rotation pin under the backrest connecting rod, both ends of the pedal transmission rod are respectively connected to the pedal connecting rod and the pedal driving rod, the pedal connecting rod is fixed to the pedal, the triple-pin rod, the transition rod, the double-angle rod, and the seat form a set of hinge four-bar mechanism via the back lower rotation pin, the transition rod rotation pin, the pedal driving rod, and the support rotation pin, both ends of the standing electric push rod are respectively connected to the push rod rotation pin and the push rod support via a hinge, the push rod rotating pin and the seat form a rotating pair, the standing electric push rod can freely stretch and retract under the action of electric power and has a self-locking function, the swinging backrest and the seat form the rotating pair through the backrest lower rotating pin, the seat and the pedal form the rotating pair through the supporting rotating pin, the supporting rotating pin is fixedly connected to the cantilever supporting rod, the cantilever supporting rod is fixedly connected to the seat support, and the seat support is fixedly connected to the vehicle supporting frame.

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