Automatic aligning device on mobility scooter for old people

Abstract

The invention discloses an automatic aligning device on a scooter for old people, relates to the technical field of scooters, and aims to solve the problem that road traffic is affected due to the fact that the old people are difficult to lift up and move the scooter when the current scooter turns on one side in the running process. According to the technical scheme, the vehicle comprises a vehicle body and a cushion located on the vehicle body, a fixing box is fixedly connected between the vehicle body and the cushion, two containing cavities are formed in the fixing box, a plurality of rotating pipes are rotationally connected into the containing cavities, one ends of the rotating pipes penetrate through the fixing box and are communicated with the outside, and moving blocks are in threaded connection with the interiors of the rotating pipes; a button for controlling the first driving assembly and the second driving assembly to start is arranged at a handle of the vehicle body. By means of the first driving assembly, the vehicle body can be lifted upwards and inclines, the rollover side of the vehicle body is separated from the ground, at the moment, an old person can pull out feet pressed by the vehicle body outwards, and the safety of the old person is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mobility scooters, and more particularly to an automatic self-centering device on a mobility scooter for the elderly. Background Art

[0002] As one of the new energy vehicles, the electric scooter for the elderly is designed to be more suitable for the driving habits of the elderly and can make it easier for the elderly to go out.

[0003] Publication number CN101314378A discloses an intermediate shock-absorbing electric scooter for the elderly, and its technical solution includes a front frame connected to the rear frame by a pin shaft, and a central tube bracket on the front frame is connected to the lower bracket of the rear frame by a high-strength shock absorber; the front frame is equipped with a front fork with shock absorption, a front wheel, and a handlebar adjuster, and the handlebar adjuster is equipped with a steering wheel and a control box; the front frame is also equipped with a 360° seat frame with a seat, a battery and a controller, and a self-contained brake-type DC motor installed on the rear frame drives the differential rear axle through a transmission sprocket, and the rear wheel is driven by the differential to form the driving wheel of the vehicle; the anti-warping wheel and the rear anti-collision block are installed on the rear frame, and the front anti-collision block is installed on the front frame.

[0004] The above technical solution can effectively reduce the vibrations experienced by the elderly when driving by providing a high-strength shock absorber between the front frame and the rear frame when the mobility scooter is traveling, thereby making the mobility scooter perform better, more stable, safer and more reliable, and more suitable for use by the elderly.

[0005] However, when the scooter overturns during driving, it is difficult for the elderly to lift up and move the scooter because the weight of the scooter is usually between 150 kg and 250 kg, which affects road traffic.

[0006] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an automatic righting device for an elderly scooter, which solves the problem that when the scooter rolls over during driving, it is difficult for the elderly to lift up and move the scooter, thereby affecting road traffic.

[0008] The above technical purpose of the present invention is achieved through the following technical scheme: it includes a vehicle body and a seat cushion located on the vehicle body, a fixed box is fixedly connected between the vehicle body and the seat cushion, two placement cavities are arranged in the fixed box, a plurality of rotating tubes are rotatably connected in the placement cavity, one end of the rotating tube passes through the fixed box and is mutually conductive with the outside, a moving block is threadedly connected in the rotating tube, a support rod is fixedly connected to one side of the moving block, a protective strip is rotatably connected to the end of the support rod away from the moving block, a first driving assembly for driving the plurality of rotating tubes to rotate synchronously is arranged in the placement cavity, a second driving assembly for driving the vehicle body to return to the center is arranged on the support rod, and a button for controlling the start of the first driving assembly and the second driving assembly is arranged on the vehicle body handle.

[0009] By adopting the above-mentioned structural setting, when the elderly scooter rolls over, the button is pressed, and the first driving component is controlled by the button to drive the several rotating tubes to rotate. At the same time, since the moving block and the internal threaded connection of the rotating tube are connected and the moving block is restricted by the support rod and the protective strip and cannot rotate with the rotating tube, the moving block will be affected by the threaded connection with the rotating tube, driving the moving block to move along the rotating tube, and driving the support rod and the protective strip to move toward the ground through the moving block. When the protective strip moves to contact the ground, the support rod continues to be driven toward the ground through the first driving component. At this time, the vehicle body is affected by the support rod, lifted up and tilted, so that the overturned side of the vehicle body is separated from the ground, and then the second driving component is controlled by the button again to drive the vehicle body to return to the center, thereby achieving the effect of automatic return of the scooter, facilitating the subsequent movement of the scooter and avoiding affecting road traffic.

[0010] The present invention is further configured as follows: the first driving assembly includes a plurality of bevel gears 1 and 2 meshing with each other, the bevel gears 1 and 2 are both rotatably connected to the side wall of the placement cavity, a plurality of the rotating tubes are respectively fixedly connected to the bevel gear 1, the side wall of the placement cavity is fixedly connected with a motor 1, the output end of the motor 1 is fixedly connected to one of the bevel gears 2 located at the outermost edge, and the motor 1 is electrically connected to a button.

[0011] By adopting the setting of the above-mentioned first driving component, when driving a plurality of rotating tubes to rotate, the output end of the motor 1 is driven by the button to drive one of the bevel gears 2 to rotate, and at the same time, the bevel gear 2 drives the bevel gear 1 to rotate, and the rotating tube is driven to rotate through the bevel gear 1. At this time, the bevel gear 1 drives the other bevel gear 2 to rotate, thereby achieving the effect of driving the rotating tube to rotate. At the same time, by utilizing the setting of the bevel gear 1 and the bevel gear 2, the plurality of rotating tubes can be driven to rotate in the same direction.

[0012] The present invention is further configured as follows: the second driving component includes a rotating rod, a placement groove for placing the rotating rod is opened on the side wall of the support rod, the rotating rod and the placement groove are rotatably connected, a connecting rod is fixedly connected between two adjacent rotating rods, the connecting rod passes through the support rod and is rotatably connected to the support rod, the side wall of the fixed box is opened with a through groove for the connecting rod to slide, and a driving member for driving the rotating rod to rotate is provided in the placement cavity.

[0013] By adopting the arrangement of the above-mentioned second driving component, when the mobility scooter needs to be straightened, the driving member drives the plurality of rotating rods to move outward from the placement grooves, and when the plurality of rotating rods rotate to contact with the ground, the plurality of rotating rods continue to be driven to rotate, and at the same time, the plurality of rotating rods will apply thrust to the ground, causing the vehicle body to tilt upward, thereby causing the center of gravity of the vehicle body to shift. At this time, the vehicle body is affected by the shift of its own center of gravity, causing the vehicle body to straighten, thereby achieving the effect of driving the mobility scooter to straighten.

[0014] The present invention is further configured as follows: the driving member includes a second motor fixedly connected to the placement cavity, the output end of the second motor is fixedly connected to a telescopic rod, the telescopic rod passes through a fixed box and is rotatably connected to the fixed box, a transmission rod is fixedly connected to the side wall of the rotating rod closest to the telescopic rod, the transmission rod passes through a support rod and is rotatably connected to the support rod, a gear box is provided between the telescopic rod and the transmission rod, two mutually meshing bevel gears three are rotatably connected in the gear box, the telescopic rod and the transmission rod respectively pass through the gear box and are fixedly connected to the bevel gear three, and the second motor is electrically connected to the button.

[0015] By adopting the above-mentioned setting of the driving member, when the support rod moves, the support rod drives the gear box to move, and drives the telescopic rod to start to extend through the gear box. When driving a plurality of rotating rods to rotate, the output end of the second motor is driven by the button to drive the telescopic rod to rotate, and at the same time, the telescopic rod drives one of the bevel gears three to rotate, and drives another bevel gear three to rotate through one of the bevel gears three. At this time, the other bevel gear three drives the transmission rod to rotate, and drives the connecting rod to rotate through the transmission rod, and drives the rotating rod to rotate by using the connecting rod, so that the rotating rod rotates from the placement slot to the outside, thereby achieving the effect of driving the rotating rod to rotate.

[0016] The present invention is further configured as follows: a slide groove for placing the gear box is provided on the fixed box.

[0017] By adopting the above-mentioned sliding groove setting, the gear box can enter the placement cavity, thereby improving the protection effect of the gear box and increasing the service life of the bevel gear three in the gear box.

[0018] The present invention is further configured as follows: a plurality of fixing blocks are fixedly connected to the side walls of the protection strip, a fixing rod is fixedly connected between two adjacent fixing blocks, and the support rod and the fixing rod are rotatably connected.

[0019] By adopting the setting of the above-mentioned fixing block, the connection mode between the protection strip and the support rod is further limited. By using the setting of the fixing rod and the fixing block, the rotation direction of the protection strip on the support rod can be limited, which is convenient for driving the vehicle body to return to the center.

[0020] The present invention is further configured as follows: a plurality of limit rods are fixedly connected in the placement cavity, a side wall of the limit rod is provided with an annular groove, a bearing is provided at the annular groove, and a plurality of the bevel gears are respectively fixedly connected to the outer wall of the bearing.

[0021] By adopting the setting of the above-mentioned limit rod, the connection method between the second bevel gear and the placement cavity is further limited. The setting of the bearing can reduce the friction between the second bevel gear and the limit rod, which facilitates the rotation of the second bevel gear and improves the rotation efficiency of the second bevel gear.

[0022] The present invention is further configured such that: a roller is provided on a side of the rotating rod away from its own rotating point.

[0023] By adopting the above-mentioned arrangement of the roller, when the rotating rod and the ground are in contact with each other, it is possible to facilitate driving the rotating rod to rotate, thereby better applying thrust to the vehicle body.

[0024] To sum up, the present invention has the following beneficial effects: when the electric scooter for the elderly rolls over, the button controls the first driving assembly to drive several rotating tubes to rotate, and at the same time drives the moving block to drive the support rod and the protective strip to move toward the ground. When the protective strip moves to contact the ground, the first driving assembly continues to drive the support rod to move toward the ground. At this time, the vehicle body is affected by the support rod, lifted up and tilted, so that the overturned side of the vehicle body is separated from the ground. At this time, the elderly can pull out their feet that are pressed by the vehicle body, thereby improving the safety of the elderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a structural diagram of the interior of the middle car body and the fixed box of the present invention; Figure 3 The cross-sectional view of the present invention Figure 1 ; Figure 4 for Figure 3 A magnified image of point A; Figure 5 The cross-sectional view of the present invention Figure 2 ; Figure 6The cross-sectional view of the present invention Figure 3 ; Figure 7 It is an exploded view of the present invention.

[0026] In the figure: 1. body; 2. seat cushion; 3. fixed box; 4. placement cavity; 5. rotating tube; 6. moving block; 7. support rod; 8. protection strip; 9. button; 10. bevel gear one; 11. bevel gear two; 12. motor one; 13. rotating rod; 14. placement slot; 15. connecting rod; 16. through slot; 17. motor two; 18. telescopic rod; 19. transmission rod; 20. gear box; 21. bevel gear three; 22. slide slot; 23. fixed block; 24. fixed rod; 25. limit rod; 26. annular groove; 27. bearing; 28. roller. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] An automatic return device for an elderly scooter, such as Figure 1-Figure 7As shown, it includes a vehicle body 1 and a seat cushion 2 located on the vehicle body 1, a fixed box 3 is fixedly connected between the vehicle body 1 and the seat cushion 2, two placement cavities 4 are arranged in the fixed box 3, a plurality of rotating tubes 5 are rotatably connected in the placement cavity 4, one end of the rotating tube 5 passes through the fixed box 3 and is mutually conductive with the outside, a moving block 6 is threadedly connected to the rotating tube 5, a support rod 7 is fixedly connected to one side of the moving block 6, a protective strip 8 is rotatably connected to the end of the support rod 7 away from the moving block 6, a first driving assembly for driving the plurality of rotating tubes 5 to rotate synchronously is arranged in the placement cavity 4, a second driving assembly for driving the vehicle body 1 to return to the normal position is arranged on the support rod 7, a button 9 for controlling the start of the first driving assembly and the second driving assembly is arranged on the handle of the vehicle body 1, when the electric scooter for the elderly rolls over, the button 9 is pressed to control the first driving assembly through the button 9 The component drives several rotating tubes 5 to rotate. At the same time, since the moving block 6 and the rotating tube 5 are internally threadedly connected and the moving block 6 is restricted by the support rod 7 and the protective strip 8 and cannot rotate with the rotating tube 5, the moving block 6 will be affected by the threaded connection with the rotating tube 5, driving the moving block 6 to move along the rotating tube 5, and driving the support rod 7 and the protective strip 8 to move toward the ground through the moving block 6. When the protective strip 8 moves to contact the ground, the support rod 7 continues to be driven toward the ground through the first driving component. At this time, the vehicle body 1 is affected by the support rod 7, lifted up and tilted, so that the overturned side of the vehicle body 1 is separated from the ground, and then the second driving component is controlled by the button 9 again to drive the vehicle body 1 to return to the center, so as to facilitate the subsequent moving of the mobility scooter and avoid affecting road traffic.

[0031] like Figure 2-Figure 7 As shown, the first driving assembly includes a plurality of bevel gears 10 and bevel gears 11 meshing with each other, and the bevel gears 10 and bevel gears 2 11 are both rotatably connected to the side wall of the placement cavity 4, and a plurality of rotating tubes 5 are respectively fixedly connected to the bevel gears 10, and a motor 12 is fixedly connected to the side wall of the placement cavity 4, and the output end of the motor 12 is fixedly connected to one of the bevel gears 2 11 located at the outermost edge, and the motor 12 is electrically connected to the button 9. When driving the plurality of rotating tubes 5 to rotate, the output end of the motor 12 is driven by the button 9 to drive one of the bevel gears 2 11 to rotate, and at the same time, the bevel gear 2 11 drives the bevel gear 10 to rotate, and the rotating tube 5 is driven to rotate through the bevel gear 10, and at this time, the bevel gear 10 drives the other bevel gear 2 11 to rotate, thereby achieving the effect of driving the rotating tube 5 to rotate, and at the same time, the arrangement of the bevel gears 10 and 11 can drive the plurality of rotating tubes 5 to rotate in the same direction.

[0032] like Figure 3 , Figure 5 , Figure 7As shown, the second driving assembly includes a rotating rod 13, a placement groove 14 for placing the rotating rod 13 is provided on the side wall of the support rod 7, the rotating rod 13 and the placement groove 14 are rotatably connected, a connecting rod 15 is fixedly connected between two adjacent rotating rods 13, the connecting rod 15 passes through the support rod 7 and is rotatably connected to the support rod 7, a through groove 16 for sliding the connecting rod 15 is provided on the side wall of the fixed box 3, a driving member for driving the rotating rod 13 to rotate is provided in the placement cavity 4, the driving member includes a motor 2 17 fixedly connected to the placement cavity 4, the output end of the motor 2 17 is fixedly connected to a telescopic rod 18, the telescopic rod 18 passes through the fixed box 3 and is rotatably connected to the fixed box 3, and a transmission rod 19 is fixedly connected to the side wall of the rotating rod 13 closest to the telescopic rod 18. It penetrates the support rod 7 and is rotatably connected with the support rod 7. A gear box 20 is provided between the telescopic rod 18 and the transmission rod 19. Two mutually meshing bevel gears three 21 are rotatably connected in the gear box 20. The telescopic rod 18 and the transmission rod 19 respectively penetrate the gear box 20 and are fixedly connected with the bevel gear three 21. The motor 2 17 is electrically connected to the button 9. A slide groove 22 for placing the gear box 20 is provided on the fixed box 3, which can enable the gear box 20 to enter the placement cavity 4, thereby improving the protection effect of the gear box 20 and increasing the service life of the bevel gear three 21 in the gear box 20. A roller 28 is provided on the side of the rotating rod 13 away from its own rotation point. When the rotating rod 13 and the ground are in contact with each other, it can facilitate the driving of the rotating rod 13 to rotate, thereby better applying thrust to the vehicle body 1.

[0033] When the support rod 7 moves, the support rod 7 drives the gear box 20 to move, and drives the telescopic rod 18 to start extending through the gear box 20. When the scooter needs to be returned to the center, the output end of the motor 2 17 is driven by the button 9 to drive the telescopic rod 18 to rotate. At the same time, the telescopic rod 18 drives one of the bevel gears 3 21 to rotate, and drives the other bevel gear 3 21 to rotate through one of the bevel gears 3 21. At this time, the other bevel gear 3 21 drives the transmission rod 19 to rotate, and drives the connecting rod 15 to rotate through the transmission rod 19, and uses the connecting rod 15 to drive the rotating rod 13 to rotate, so that the rotating rod 13 rotates from the placement groove 14 to the outside. When the plurality of rotating rods 13 rotate to contact with the ground, the rotating rods 13 continue to be driven to rotate. At the same time, the plurality of rotating rods 13 will apply thrust to the ground, causing the vehicle body 1 to tilt upward, thereby causing the center of gravity of the vehicle body 1 to shift. At this time, the vehicle body 1 is affected by the shift of its own center of gravity, causing the vehicle body 1 to return to the center, thereby achieving the effect of driving the scooter to return to the center.

[0034] like Figure 3 , Figure 7As shown, a plurality of fixing blocks 23 are fixedly connected to the side wall of the protection strip 8, a fixing rod 24 is fixedly connected between two adjacent fixing blocks 23, and the support rod 7 and the fixing rod 24 are rotatably connected, which further limits the connection method between the protection strip 8 and the support rod 7. By utilizing the setting of the fixing rod 24 and the fixing blocks 23, the rotation direction of the protection strip 8 on the support rod 7 can be limited, so as to facilitate driving the vehicle body 1 to return to the center.

[0035] like Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, a plurality of limit rods 25 are fixedly connected in the placement cavity 4, and an annular groove 26 is opened on the side wall of the limit rod 25. A bearing 27 is provided at the annular groove 26, and a plurality of bevel gears 11 are fixedly connected to the outer wall of the bearing 27 respectively, so as to further limit the connection mode between the bevel gear 11 and the placement cavity 4. The arrangement of the bearing 27 can reduce the friction between the bevel gear 11 and the limit rod 25, so as to facilitate the rotation of the bevel gear 11 and improve the rotation efficiency of the bevel gear 11.

[0036] The working principle of the present invention is as follows: when the mobility scooter rolls over, the button 9 is pressed, and the output end of the motor 12 is driven by the button 9 to drive one of the bevel gears 2 11 to rotate, and at the same time, the bevel gear 2 11 drives the bevel gear 10 to rotate, and the rotating tube 5 is driven to rotate by the bevel gear 10. At this time, the bevel gear 10 drives another bevel gear 2 11 to rotate, so as to achieve the effect of driving the rotating tube 5 to rotate. At the same time, the setting of the bevel gear 10 and the bevel gear 2 11 can drive several rotating tubes 5 to rotate in the same direction. At the same time, because the moving block 6 is connected to the internal thread of the rotating tube 5 and the moving block 6 is connected to the internal thread of the rotating tube 5, the moving block 6 is connected to the internal thread of the rotating tube 5 and ... Block 6 is restricted by the support rod 7 and the protective strip 8 and cannot rotate with the rotating tube 5. Therefore, the moving block 6 will be affected by the threaded connection with the rotating tube 5, driving the moving block 6 to move along the rotating tube 5, and driving the support rod 7 and the protective strip 8 to move toward the ground through the moving block 6. At the same time, the support rod 7 drives the gear box 20 to move, and drives the telescopic rod 18 to start extending through the gear box 20. When the protective strip 8 moves to contact the ground, it continues to drive the support rod 7 to move toward the ground. At this time, the vehicle body 1 is affected by the support rod 7, lifted upward and tilted, so that the overturned side of the vehicle body 1 is separated from the ground.

[0037] After the vehicle body 1 and the ground are separated from each other, the output end of the motor 2 17 is driven by the button 9 to drive the telescopic rod 18 to rotate, and at the same time, the telescopic rod 18 drives one of the bevel gears 3 21 to rotate, and drives the other bevel gear 3 21 to rotate through one of the bevel gears 3 21. At this time, the other bevel gear 3 21 drives the transmission rod 19 to rotate, and drives the connecting rod 15 to rotate through the transmission rod 19, and drives the rotating rod 13 to rotate by the connecting rod 15, so that the rotating rod 13 rotates from the placement groove 14 to the outside. When several rotating rods 13 rotate to contact with the ground, the rotating rods 13 continue to be driven to rotate. At the same time, several rotating rods 13 will apply thrust to the ground, causing the vehicle body 1 to tilt upward, thereby causing the center of gravity of the vehicle body 1 to shift. At this time, the vehicle body 1 is affected by the shift of its own center of gravity, so that the vehicle body 1 returns to the normal state, which is convenient for the subsequent moving of the scooter to avoid road traffic congestion.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic self-centering device for an elderly scooter, comprising a scooter body (1) and a seat cushion (2) located on the scooter body (1), characterized in that: A fixed box (3) is fixedly connected between the vehicle body (1) and the seat cushion (2), two placement chambers (4) are provided in the fixed box (3), a plurality of rotating tubes (5) are rotatably connected in the placement chambers (4), one end of the rotating tube (5) passes through the fixed box (3) and is in communication with the outside, a moving block (6) is connected to the internal thread of the rotating tube (5), a support rod (7) is fixedly connected to one side of the moving block (6), and a protective strip (8) is rotatably connected to one end of the support rod (7) away from the moving block (6), a first driving assembly for driving the plurality of rotating tubes (5) to rotate synchronously is provided in the placement chamber (4), a second driving assembly for driving the vehicle body (1) to return to the normal position is provided on the support rod (7), and a button (9) for controlling the start of the first driving assembly and the second driving assembly is provided on the handle of the vehicle body (1).

2. The automatic return device for the elderly scooter according to claim 1 is characterized by: The first driving assembly comprises a plurality of bevel gears 1 (10) and bevel gears 2 (11) meshing with each other, the bevel gears 1 (10) and bevel gears 2 (11) being rotatably connected to the side wall of the placement cavity (4), the plurality of rotating tubes (5) being fixedly connected to the bevel gears 1 (10), the side wall of the placement cavity (4) being fixedly connected to a motor 1 (12), the output end of the motor 1 (12) being fixedly connected to one of the bevel gears 2 (11) located at the outermost edge, and the motor 1 (12) being electrically connected to the button (9).

3. The automatic return device for the elderly scooter according to claim 1 is characterized by: The second driving assembly comprises a rotating rod (13), a placement groove (14) for placing the rotating rod (13) on a side wall of the support rod (7), the rotating rod (13) and the placement groove (14) being rotatably connected, a connecting rod (15) being fixedly connected between two adjacent rotating rods (13), the connecting rod (15) passing through the support rod (7) and being rotatably connected to the support rod (7), a through groove (16) for sliding the connecting rod (15) on a side wall of the fixed box (3), and a driving member for driving the rotating rod (13) to rotate is provided in the placement cavity (4).

4. The automatic return device for the elderly scooter according to claim 3 is characterized by: The driving member comprises a second motor (17) fixedly connected to the placement cavity (4); the output end of the second motor (17) is fixedly connected to a telescopic rod (18); the telescopic rod (18) passes through the fixed box (3) and is rotatably connected to the fixed box (3); a transmission rod (19) is fixedly connected to the side wall of the rotating rod (13) closest to the telescopic rod (18); the transmission rod (19) passes through the support rod (7) and is rotatably connected to the support rod (7); a gear box (20) is provided between the telescopic rod (18) and the transmission rod (19); two mutually meshing bevel gears (21) are rotatably connected in the gear box (20); the telescopic rod (18) and the transmission rod (19) respectively pass through the gear box (20) and are fixedly connected to the bevel gear (21); the second motor (17) is electrically connected to the button (9).

5. The automatic return device for the elderly scooter according to claim 4 is characterized by: The fixed box (3) is provided with a slide groove (22) for placing the gear box (20).

6. The automatic return device for the elderly scooter according to claim 1 is characterized by: A plurality of fixing blocks (23) are fixedly connected to the side wall of the protection strip (8), a fixing rod (24) is fixedly connected between two adjacent fixing blocks (23), and the support rod (7) and the fixing rod (24) are rotatably connected.

7. The automatic return device for the elderly scooter according to claim 2 is characterized by: A plurality of limiting rods (25) are fixedly connected in the placement cavity (4), a side wall of the limiting rod (25) is provided with an annular groove (26), a bearing (27) is provided in the annular groove (26), and a plurality of bevel gears (11) are respectively fixedly connected to the outer wall of the bearing (27).

8. The automatic return device for the elderly scooter according to claim 3 is characterized by: A roller (28) is provided on a side of the rotating rod (13) away from its own rotating point.

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