Fitness and riding electric tricycle for rehabilitation of old people

Abstract

The fitness riding electric tricycle comprises a front tricycle frame, a rear tricycle frame, a handle rod, a front fork wheel rod, a bottom supporting frame, a cushion, rear wheels, a damping rod, a storage battery and a universal rotating assembly, a disassembling assembly is installed between the front tricycle frame and the rear tricycle frame, a cushion supporting rod is installed on the rear tricycle frame and connected with a cushion connecting rod, and the cushion connecting rod is connected with the rear tricycle frame. A seat cushion is fixed on a seat cushion connecting rod, a locking buckle is installed on the left side of the seat cushion connecting rod, an armrest telescopic folding assembly is installed on the seat cushion connecting rod, supporting sleeves are fixed on the front side and the rear side of the bottom supporting frame, a rear wheel rotating shaft is connected in the supporting sleeves, and a rear wheel is connected with the front end and the rear end of the rear wheel rotating shaft. A pedal flying disc, a driving motor and a variable-speed hub are installed on the bottom supporting frame, a chain is connected among the pedal flying disc, the driving motor, the differential mechanism and the variable-speed hub in a sleeved mode, and the foldable electric bicycle has the advantages of being simple in structure, foldable, more convenient to adjust and use and higher in comfort and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an electric tricycle for elderly people to exercise and travel for rehabilitation. Background Art

[0002] Electric cylinder tricycles have been widely used at home and abroad as the most common means of transportation, but there are only a few that are specifically used for elderly people to travel. The current scooters for the elderly are basically existing electric wheelchairs that have been modified or even left intact. The armrests, backrests, seats, etc. are fixed and cannot be adjusted. For the use of the elderly, these adjustments in details are particularly important, and their comfort is closely related to the changes in these details. For example, application number CN201420669433.1 discloses a foldable three-wheeled electric vehicle for elderly people to assist in walking. Only the front and seat cushions are foldable, simply to reduce storage space after folding. Patent number CN201120240482.X discloses a three-wheeled electric scooter for the elderly, which is the most common style on the market. All parts cannot be adjusted, and the comfort level cannot meet existing needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electric tricycle for elderly people to use for rehabilitation and exercise, which has a simple structure, is foldable, is more convenient to adjust and use, and has higher comfort and stability.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] An electric tricycle for elderly rehabilitation and fitness walking comprises a front frame, a rear frame, a handlebar, a front fork wheel rod, a bottom support frame, a seat cushion and a rear wheel, wherein the handlebar and the front fork wheel rod are rotatably connected to the front frame, a shock-absorbing rod is further installed between the bottom support frame and the rear frame, a battery is installed on the front frame, a universal rotation assembly is connected between the handlebar and the front fork wheel rod, a disassembly assembly is installed between the front frame and the rear frame, a seat cushion support rod is detachably installed on the rear frame, a seat cushion connecting rod is slidably connected to the seat cushion support rod, and the seat cushion is fixed. It is fixed on the seat cushion connecting rod, and a locking buckle is also installed on the left end of the seat cushion connecting rod. An armrest telescopic folding assembly is also installed on the seat cushion connecting rod. Support sleeves are fixed on the front and rear sides of the bottom support frame. The rear wheel shaft is rotatably connected in the support sleeve. The rear wheel is connected to the front and rear ends of the rear wheel shaft. A supporting secondary wheel assembly is also installed on the support sleeve, and a differential is fixed on the rear wheel shaft. A foot flying disc, a drive motor and a speed-changing hub are also installed on the bottom support frame, and a chain is connected between the foot flying disc, the drive motor, the differential and the speed-changing hub.

[0006] A further technical solution is that the universal rotating assembly includes a rotating seat 1 fixed at the bottom end of the handle rod and a rotating seat 2 fixed at the top end of the front fork wheel rod, and an intermediate rotating block is fixed between the rotating seat 1 and the rotating seat 2. When rotation is required, the handle rod rotates to drive the rotating seat 1 to rotate, and the rotating seat 1 rotates to drive the intermediate rotating block to rotate, and the rotation of the intermediate rotating block drives the rotating seat 2 to rotate, and finally the rotating seat 2 drives the front fork wheel rod to rotate. The entire universal rotating assembly can be tilted at a certain angle, which is convenient for the elderly to use.

[0007] A further technical solution is that the armrest telescopic and folding assembly includes a fixed rod, a telescopic rod and an armrest, the armrest is rotatably connected to the telescopic rod, the telescopic rod is telescopically connected left and right and connected to the fixed rod, and a knob is also threadedly connected to the fixed rod. After the knob is threadedly connected to the fixed rod, its outer end abuts against the telescopic rod. When the left and right position of the armrest needs to be adjusted, unscrew the knob and the telescopic rod can be adjusted left and right on the fixed rod. After adjustment, just tighten the knob again. The armrest is rotatably connected to the telescopic rod, and the armrest can be folded upwards.

[0008] When disassembling, unscrew the locking knob, remove the locking block, and the front frame and the rear frame can be separated.

[0009] A further technical solution is that a through groove is distributed on the locking piece 1 in the vertical direction. When the locking knob passes through the locking piece 2 and the limit block, the locking knob is located in the through groove on the locking piece 1.

[0010] A further technical solution is that the bottom ends of the locking piece one and the locking piece two are both inclined surfaces, and the locking block is provided with trapezoidal grooves. The bottom ends of the locking piece one and the locking piece two can be built into the trapezoidal grooves distributed on the locking block, and then the locking knob is threadedly connected to the locking block, so that the locking block can lock the locking piece one and the locking piece two, making disassembly and assembly more convenient.

[0011] A further technical solution is that the supporting secondary wheel assembly includes a secondary wheel support rod fixed on the supporting sleeve, a secondary wheel telescopic rod and a secondary wheel, the secondary wheel telescopic rod passes through the secondary wheel support rod and can move up and down along the secondary wheel support rod, the secondary wheel is rotatably connected to the bottom end side of the secondary wheel telescopic rod, and there are also sockets distributed on the secondary wheel telescopic rod, and a locking plug that can move back and forth is placed in the secondary wheel support rod, and the secondary wheel telescopic rod can be adjusted up and down on the secondary wheel support rod. When adjusting, press the locking plug and move it outward, and the locking plug disengages from the socket on the secondary wheel telescopic rod. At this time, the secondary wheel telescopic rod can be adjusted up and down. When the adjustment is completed, release the locking plug, and reinsert the locking plug into the socket on the secondary wheel telescopic rod to lock it.

[0012] A further technical solution is that a spring is placed in the secondary wheel support rod, one end of the spring abuts against the locking plug and the other end abuts against the inner wall of the outer end of the secondary wheel support rod. When the locking plug is pressed outward, the spring is compressed, and when the locking plug is released, the spring is reset, and the spring has a reset effect.

[0013] A further technical solution is that a vertical rod is fixed on each side of the rear frame, and the left and right ends of the seat cushion support rod are placed on the vertical rods on the left and right sides. Seat cushion support rod knobs are also placed on the left and right ends of the seat cushion support rod, and the seat cushion support rod knobs pass through the seat cushion support rod and are threadedly connected to the vertical rods. When disassembling, unscrew the seat cushion support rod knobs on both sides, so that the entire seat cushion support rod together with the back cushion, armrest telescopic and folding assembly and seat cushion can be taken out and stored separately, and can be placed in the car for easy transportation.

[0014] A further technical solution is that a back cushion is fixed to the tail end of the seat cushion connecting rod for the elderly to lean on, which is more comfortable.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model is an electric tricycle for elderly rehabilitation and fitness. A disassembly assembly is installed between the front frame and the rear frame. When not in use or for storage, the locking knob can be unscrewed for quick disassembly. After disassembly, it can be placed on the vehicle or stored separately, which reduces storage space and facilitates transfer.

[0017] 2. A supporting auxiliary wheel assembly is installed on the side end of the supporting sleeve. The supporting auxiliary wheel assembly can be adjusted up and down according to different road conditions to support the ground to increase the contact point and improve the stability during driving;

[0018] 3. The rear frame is equipped with a detachable seat support rod. When the vehicle needs to be moved or stored, the entire seat support rod, seat, armrest telescopic and folding components, and back cushions can be disassembled to reduce the space required for storage and transportation.

[0019] 4. The seat cushion connecting rod can slide left and right on the seat cushion support rod and be locked with a locking buckle. The position of the seat cushion can be adjusted left and right to improve comfort;

[0020] 5. The armrest telescopic folding assembly can adjust the position of the armrest left and right, and the armrest can be folded to improve the comfort during use;

[0021] 6. The handlebar and the front fork wheel are connected by a universal rotation assembly. When the elderly hold the handlebar, they do not need to lean forward, which is more convenient and labor-saving, and the rotation is smooth and without jamming;

[0022] 7. It uses a pedal disc, a speed hub, a differential and a drive motor. The differential can make it more stable when turning. The drive motor is installed at the tail end of the bottom support frame to make rational use of space. The speed hub is connected to the pedal disc chain to achieve stable speed change. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required to be produced in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a three-dimensional diagram of an electric tricycle for elderly rehabilitation and fitness;

[0025] Figure 2 This is a schematic diagram of a universal rotating assembly in an electric tricycle for elderly rehabilitation and fitness travel;

[0026] Figure 3 This is a schematic diagram of the telescopic and folding assembly of the armrests in the electric tricycle for elderly rehabilitation and fitness travel in the present utility model;

[0027] Figure 4 This is a schematic diagram of a pedal disc, a speed-changing hub, a differential, and a drive motor connected via a chain in an electric tricycle for elderly rehabilitation and fitness.

[0028] Figure 5 This is a schematic diagram of a seat support rod detachably connected to the rear frame of an electric tricycle for elderly rehabilitation and fitness travel according to the present invention;

[0029] Figure 6 This is a schematic diagram of a locking buckle in an electric tricycle for elderly rehabilitation and fitness;

[0030] Figure 7This is a schematic diagram of a supporting auxiliary wheel assembly in an electric tricycle for elderly rehabilitation and fitness travel in the present utility model;

[0031] Figure 8 This is a schematic diagram of a spring built into a secondary wheel support rod in an electric tricycle for elderly rehabilitation and fitness walking according to the present invention;

[0032] Figure 9 This is a schematic diagram of disassembled components of an electric tricycle for elderly rehabilitation and fitness;

[0033] Figure 10 This is a schematic diagram of a limiting block installed on a second locking piece in an electric tricycle for elderly rehabilitation and fitness walking according to the present utility model;

[0034] Figure 11 This is a top view of a limiting block in an electric tricycle for elderly rehabilitation and fitness walking;

[0035] Figure 12 This is a schematic diagram of a locking piece 1 in an electric tricycle for elderly rehabilitation and fitness walking according to the present invention;

[0036] Figure 13 This is a top view of a locking block in an electric tricycle for elderly rehabilitation and fitness;

[0037] Figure 14 The utility model is a front view of a locking block of an electric tricycle for rehabilitation and fitness of the elderly.

[0038] Figure 1-14 Middle: 1- cushion, 2- battery, 3- handlebar, 4- front frame, 5- armrest telescopic folding assembly, 6- disassembly assembly, 7- chain, 8- shock absorber rod, 9- universal rotation assembly, 10- support sleeve, 11- bottom support frame, 12- rear frame, 13- foot frisbee, 14- pedal, 15- front fork wheel rod, 16- seat, 17- rear wheel, 18- vertical rod, 19- seat support rod knob, 20- seat support rod, 21- seat connecting rod, 22- locking buckle, 23- rear wheel shaft, 24- support secondary wheel assembly, 25-speed hub, 26-differential, 27-drive motor, 28-bearing, 51-fixed rod, 52-knob, 53-telescopic rod, 54-armrest, 61-locking plate 1, 62-locking plate 2, 63-locking block, 64-locking knob, 65-limiting block, 66-through hole, 67-through groove, 91-rotating seat 1, 92-middle rotating block, 93-rotating seat 2, 241-secondary wheel support rod, 242-secondary wheel telescopic rod, 243-jack, 244-secondary wheel, 245-locking plug, 246-spring. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0040] See Figures 1 to 14 As shown, an electric tricycle for fitness and travel for the elderly for rehabilitation includes a front frame 4, a rear frame 12, a handlebar 3, a front fork wheel rod 15, a bottom support frame 11, a seat cushion 16 and a rear wheel 17. The handlebar 3 and the front fork wheel rod 15 are rotatably connected to the front frame 4, a shock absorber rod 8 is further installed between the bottom support frame 11 and the rear frame 12, a battery 2 is installed on the front frame 4, a universal rotation assembly 9 is connected between the handlebar 3 and the front fork wheel rod 15, a disassembly assembly 6 is installed between the front frame 4 and the rear frame 12, a seat cushion support rod 20 is detachably installed on the rear frame 12, a seat cushion connecting rod 21 is slidably connected to the seat cushion support rod 20, and the seat cushion 16 is fixed. It is fixed on the seat connecting rod 21, and a locking buckle 22 is also installed on the left end of the seat connecting rod 21. The armrest telescopic folding assembly 5 is also installed on the seat connecting rod 21. The support sleeve 10 is fixed on the front and rear sides of the bottom support frame 11. The rear wheel shaft 23 is rotatably connected in the support sleeve 10. The rear wheel 17 is connected to the front and rear ends of the rear wheel shaft 23. The support sleeve 10 is also equipped with a supporting secondary wheel assembly 24, and the rear wheel shaft 23 is fixed with a differential 26. The bottom support frame 11 is also equipped with a pedal flying disc 13, a drive motor 27 and a speed-changing hub 25. A chain 7 is sleeved between the pedal flying disc 13, the drive motor 27, the differential 26 and the speed-changing hub 25.

[0041] The universal rotating assembly 9 includes a rotating seat 1 91 fixed at the bottom end of the handle rod 3 and a rotating seat 2 93 fixed at the top end of the front fork wheel rod 15. An intermediate rotating block 92 is fixed between the rotating seat 1 91 and the rotating seat 2 93. When rotation is required, the handle rod 3 rotates to drive the rotating seat 1 91 to rotate. After the rotating seat 1 91 rotates, it drives the intermediate rotating block 92 to rotate. The rotation of the intermediate rotating block 92 drives the rotating seat 2 93 to rotate. Finally, the rotating seat 2 93 drives the front fork wheel rod 15 to rotate. The entire universal rotating assembly 9 can be tilted at a certain angle, which is convenient for the elderly to use. The armrest telescopic and folding assembly 5 includes a fixed rod 51, a telescopic rod 53 and an armrest 54. The armrest 54 is rotatably connected to the telescopic rod 53. The telescopic rod 53 can be telescoped left and right and connected to the fixed rod 51. A knob 52 is also threadedly connected to the fixed rod 51. After the knob 52 is threadedly connected to the fixed rod 51, its outer end abuts against the telescopic rod 53. When the left and right position of the armrest 54 needs to be adjusted, unscrew the knob 52 and the telescopic rod 53 can be adjusted left and right on the fixed rod 51. After adjustment, just tighten the knob 52 again. The armrest 54 is rotatably connected to the telescopic rod 53, and the armrest 54 can be folded upward. The disassembly assembly 6 includes a locking piece 61 welded to the rear end of the front frame 4, a locking piece 62 welded to the front end side of the rear frame 12, and a locking knob 64. The locking piece 61 is provided with a through hole 66, and a limiting block 65 is fixed on the locking piece 62. The top of the locking piece 62 is a hook-shaped structure. A locking block 63 is also placed at the bottom of the locking piece 61 and the locking piece 62. The locking knob 64 passes through the locking piece 62 and the limiting block 65 and is threadedly connected to the locking block 63. When in use, the locking piece 1 61 on the front frame 4 is built into the side end of the locking piece 2 62. At this time, the limit block 65 can be inserted into the through hole 66 to limit the position, and then the locking block 63 is used to abut the locking piece 1 61 and the bottom end of the locking piece 2 62. Finally, the locking knob 64 is passed through the locking piece 2 62 and the limit block 65 and then threadedly connected to the locking block 63. When disassembling, unscrew the locking knob 64, remove the locking block 63, and the front frame 4 and the rear frame 12 can be separated.

[0042] The locking piece 1 61 is also provided with a through slot 67 in the vertical direction. When the locking knob 64 passes through the locking piece 2 62 and the limit block 65, the locking knob 64 is located in the through slot 67 on the locking piece 1 61. The bottom ends of the locking piece 1 61 and the locking piece 2 62 are both inclined. The locking block 63 is provided with a trapezoidal slot 66. The bottom ends of the locking piece 1 61 and the locking piece 2 62 can be built into the trapezoidal slot 66 distributed on the locking block 63. The locking knob 64 is then threadedly connected to the locking block 63. In this way, the locking block 63 can lock the locking piece 1 61 and the locking piece 2 62, making it easier to assemble and disassemble.

[0043] The auxiliary wheel supporting assembly 24 comprises an auxiliary wheel supporting rod 241, an auxiliary wheel telescopic rod 242 and an auxiliary wheel 244 fixed to the supporting sleeve 10. The auxiliary wheel telescopic rod 242 passes through the auxiliary wheel supporting rod 241 and can move up and down along the auxiliary wheel supporting rod 241. The auxiliary wheel 244 is rotatably connected to the lower end side of the auxiliary wheel telescopic rod 242. There are also sockets 243 distributed on the auxiliary wheel telescopic rod 242. A locking plug 245 that can move back and forth is also placed in the auxiliary wheel supporting rod 241. The auxiliary wheel telescopic rod 242 can be adjusted up and down on the auxiliary wheel supporting rod 241 during adjustment. When adjusting, pressing the locking plug 245 to move outward, the locking plug 245 disengages from the socket 243 on the auxiliary wheel telescopic rod 242. At this time, the auxiliary wheel telescopic rod 241 can be adjusted up and down. When adjustment is completed, the locking plug 245 is released and the locking plug 245 is reinserted into the socket 243 on the auxiliary wheel telescopic rod 242 to lock it. A spring 246 is also placed inside the secondary wheel support rod 241. One end of the spring 246 contacts the locking plug 245, and the other end contacts the inner wall of the outer end of the secondary wheel support rod 241. When the locking plug 245 is pressed outward, the spring 246 is compressed. When the locking plug 245 is released, the spring 246 returns to its original position, thus restoring the position. A vertical rod 18 is fixed to each of the left and right sides of the rear frame 12. The left and right ends of the seat support rod 20 are placed on the left and right vertical rods 18. Seat support rod knobs 19 are also placed on the left and right ends of the seat support rod 20. The seat support rod knobs 19 pass through the seat support rod 20 and are threadedly connected to the vertical rods 18. When disassembling, the seat support rod knobs 19 on both sides are unscrewed. In this way, the entire seat support rod 20, together with the back cushion 1, the armrest telescopic and folding assembly 5, and the seat cushion 16, can be taken out and stored separately, and can be placed in the vehicle for convenient transportation. A back cushion 1 is also fixed to the rear end of the seat cushion connecting rod 21 for the elderly to lean on, which is more comfortable.

[0044] In this embodiment, when in use, one can sit on the seat 16, hold the handlebar 3 with both hands and rotate it, the handlebar 3 rotates and drives the front fork wheel rod 15 to rotate through the universal rotation assembly 9, the front fork wheel rod 15 rotates and drives the front wheel on the front fork wheel rod 15 to change the forward direction, when starting, the drive motor 27 (outer rotor motor) is started, and drives the differential 26 to rotate through the chain 7, and the differential 26 is fixed to the rear wheel shaft 23, and the differential 26 can start to achieve a stable anti-sway effect, and the rear wheel shaft A bearing is installed between 23 and the support sleeve 10. Therefore, the differential 26 drives the two rear wheels 17 to rotate after it rotates, and the pedal 14 is connected to the foot disc 13. Human power stepping on the pedal 14 can drive the foot disc 13 to rotate. After the foot disc 13 rotates, it drives the speed-changing hub 25 to rotate through the chain 7. The speed-changing hub 25 plays the purpose of speed change, and the speed-changing hub 25 is connected to the other side end of the differential 26 through the chain 7. Therefore, stepping on the pedal 14 can drive the two rear wheels 17 to move forward.

[0045] Among them, a bearing 28 is installed between the rear wheel shaft 23 and the support sleeve 10, and bearings (not shown) are also installed between the handlebar 3 and the front frame 4 and between the front fork wheel rod 15 and the front frame 4, so that the rear wheel shaft 23, the handlebar 3 and the front fork wheel rod 15 can rotate.

[0046] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or replacements that are not conceived through creative work should be included in the protection scope of the present invention.

Claims

1. An electric tricycle for elderly rehabilitation and exercise, comprising a front frame, a rear frame, a handlebar, a front fork wheel rod, a bottom support frame, a seat cushion, and a rear wheel. The handlebar and front fork wheel rod are rotatably connected to the front frame. A shock-absorbing rod is installed between the bottom support frame and the rear frame. A battery is installed on the front frame. The rear wheel shaft is connected to the front and rear ends of the rear wheel shaft by a support sleeve, and a support sub-wheel assembly is rotatably mounted on the support sleeve, and a differential is fixed to the rear wheel shaft. The bottom support frame is also equipped with a foot flying disc, a drive motor and a speed hub, and a chain is sleeved between the foot flying disc, the drive motor, the differential and the speed hub.

2. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: The universal rotation assembly comprises a rotating seat 1 fixed at the bottom end of the handlebar rod and a rotating seat 2 fixed at the top end of the front fork wheel rod, and an intermediate rotating block is fixed between the rotating seat 1 and the rotating seat 2.

3. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: The armrest telescopic and folding assembly includes a fixed rod, a telescopic rod and an armrest. The armrest is rotatably connected to the telescopic rod. The telescopic rod is telescopically connected to the fixed rod. A knob is also threadedly connected to the fixed rod. After the knob is threadedly connected to the fixed rod, its outer end contacts the telescopic rod.

4. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: The disassembly assembly includes a locking plate 1 welded to the rear end of the front frame, a locking plate 2 welded to the front end side of the rear frame, and a locking knob. The locking plate 1 is provided with a through hole, a limiting block is fixed on the locking plate 2, the top end of the locking plate 2 is a hook-shaped structure, and locking blocks are also placed at the bottom ends of the locking plate 1 and the locking plate 2. The locking knob passes through the locking plate 2 and the limiting block and is threadedly connected to the locking block.

5. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 4 is characterized by: The locking piece is also provided with through grooves along the vertical direction.

6. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 4, characterized in that: The bottom ends of the locking piece 1 and the locking piece 2 are both inclined surfaces, and trapezoidal grooves are distributed on the locking block.

7. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: The supporting secondary wheel assembly includes a secondary wheel support rod fixed on the supporting sleeve, a secondary wheel telescopic rod and a secondary wheel, the secondary wheel telescopic rod passes through the secondary wheel support rod and can move up and down along the secondary wheel support rod, the secondary wheel is rotatably connected to the bottom end side of the secondary wheel telescopic rod, and the secondary wheel telescopic rod is also provided with a socket, and a locking plug that can move forward and backward is also placed in the secondary wheel support rod.

8. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 7, characterized in that: A spring is also placed in the secondary wheel support rod, one end of the spring abuts against the locking plug block, and the other end abuts against the inner wall of the outer end of the secondary wheel support rod.

9. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: A vertical rod is fixed on each of the left and right sides of the rear frame, and the left and right ends of the seat support rod are placed on the left and right vertical rods. Seat support rod knobs are also placed on the left and right ends of the seat support rod. The seat support rod knobs pass through the seat support rod and are threadedly connected to the vertical rods.

10. The electric tricycle for elderly rehabilitation and fitness as claimed in claim 1, characterized in that: A back cushion is also fixed to the rear end of the seat cushion connecting rod.

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