Scooter

Abstract

The invention relates to the technical field of scooters, in particular to a scooter which comprises a chassis, a seat, a seat supporting frame, a quick-release connecting frame and a folding seat. Wherein the seat supporting frame is arranged at the top of the chassis, the quick-release connecting frame is arranged at the upper end of the seat supporting frame, a locking piece and a containing space are arranged on the quick-release connecting frame front and back in the longitudinal direction, a limiting piece and a positioning piece are arranged at the bottom of the seat front and back in the longitudinal direction, and the positioning piece can move in the longitudinal direction to stretch into the containing space. According to the scooter, after the positioning piece stretches into the containing space, the locking piece abuts against the limiting piece so that the positioning piece can be prevented from being separated from the containing space, a containing groove is formed in the position, behind the seat supporting frame, of the top of the chassis, and the folding seat can be folded and contained in the containing groove. When two persons need to sit, the folding seat can be unfolded to provide sitting positions for relatives and friends, and daily use of the old and the disabled is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of scooters, in particular to a scooter. Background Art

[0002] The mobility scooter is mainly to meet the needs of the elderly population and the trend of green environmental protection, and has become another emerging industry in the traditional wheelchair industry. In addition, with the development of social welfare and the improvement of people's living standards, more and more disabled people are using mobility scooters, which have become an indispensable means of transportation for people with lower limb disabilities and the elderly and frail. The mobility scooter saves the hard work of caregivers, is convenient for transfer within the hospital, and can also be used to go shopping, pick up children, etc. It is an excellent means of transportation for the disabled and the elderly.

[0003] A Chinese patent with application number 202010988345.8 discloses a mobility scooter, which includes a chassis, a seat and a quick-release structure. The quick-release structure includes a guide column and a mounting rod. The guide column is arranged on the chassis, and a mounting cavity is formed inside the guide column. The mounting rod is arranged at the bottom of the seat, and the mounting rod is detachably inserted into the mounting cavity. The chassis and the seat are connected by a quick-release structure, thereby realizing quick-release assembly and quick-release disassembly between the seat and the chassis. However, this method requires repeated adjustment of the position of the seat to align the guide column and the mounting rod, resulting in low assembly efficiency. In addition, the seat needs to be lifted a high distance to be separated from the quick-release structure during disassembly, which makes the installation and disassembly of the seat more laborious, which is not conducive to use by disabled people and the elderly.

[0004] Chinese patent application number 201320551681.1 also discloses an electric scooter with single or double-person variable seats, which includes a chassis, an electric control box, and a steering control lever. The chassis is connected to a support rod through a surface-mounted receiving groove, a fixing buckle is provided between the support rod and the vacant groove, a first seat is installed above the support rod, a bracket is provided above the electric control box, and a second seat is installed above the bracket. The scooter adopts a design of single or double variable seats, and a seating position is reserved for relatives and friends, which is convenient for two people to ride. However, the auxiliary seat of the scooter with this structure is not convenient to store after being removed, and the auxiliary seat is large in size, which makes it more difficult for disabled people and the elderly to install and remove the auxiliary seat. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] A mobility scooter comprises a chassis, a seat, a seat support frame, a quick-release connecting frame and a folding seat; wherein the seat support frame is arranged on the top of the chassis, the quick-release connecting frame is arranged on the upper end of the seat support frame, a locking member and a accommodating space are arranged on the quick-release connecting frame along the longitudinal front and rear, a limiting member and a positioning member are arranged on the bottom of the seat along the longitudinal front and rear, the positioning member can move along the longitudinal direction to extend into the accommodating space, after the positioning member extends into the accommodating space, the locking member abuts against the limiting member to prevent the positioning member from being separated from the accommodating space, a storage groove is arranged on the top of the chassis behind the seat support frame, and the folding seat can be folded and stored in the storage groove.

[0007] As a further solution of the present invention: the positioning member includes a first L-shaped plate, the transverse plate of the first L-shaped plate is connected to the seat, the vertical plate of the first L-shaped plate is provided with a positioning pin, the quick-release connecting frame is surrounded by four side frames, the edges of the side frames have guard edges extending inward, and an accommodating space is limited between the guard edges and the side frames. When the first L-shaped plate moves to a certain position in the longitudinal direction, the positioning pin extends into the accommodating space, side guard plates are symmetrically arranged on the quick-release connecting frame, and chamfers are provided on the left and right sides of the transverse plate of the first L-shaped plate.

[0008] As a further solution of the present invention: the limiting member includes a second L-shaped plate, the transverse plate of the second L-shaped plate is connected to the seat, the locking member includes a mounting plate, the mounting plate is transversely arranged on the quick-release connecting frame, a hinged seat is provided at the bottom of the mounting plate, a lock is rotatably connected to the hinged seat via a rotating shaft, a torsion spring is sleeved on the rotating shaft, a torsion arm at one end of the torsion spring is connected to the hinged seat, and a torsion arm at the other end of the torsion spring is connected to the lock, after the positioning pin extends into the accommodating space, under the action of the torsion spring, the lock presses against the vertical plate of the second L-shaped plate, an unlocking rod is provided at the bottom of the lock, a through slot is provided at the front end of the quick-release connecting frame, and the end of the unlocking rod extends from the through slot and is connected to an unlocking handle.

[0009] As a further solution of the present invention: a plurality of limit holes are opened on the vertical plate of the second L-shaped plate, and a plurality of limit pins are provided on the bottom of the mounting plate. The number of the limit pins is consistent with the number of the limit holes. When the second L-shaped plate moves to a certain position along the longitudinal direction of the quick-release connecting frame, the limit pins are respectively inserted into the limit holes.

[0010] As a further solution of the present invention: the folding seat includes an outer frame, the starting end of the outer frame is rotatably connected to the inner wall of the storage groove, the outer frame is provided with a first slide groove along its length direction, the inner frame is slidably arranged in the first slide groove, the inner frame can be extended or retracted along the first slide groove, the end of the outer frame is rotatably connected to a support plate, when the inner frame is extended from the first slide groove, the support plate is flipped outward relative to the outer frame, a second slide groove is provided on the inner frame along its length direction, a support frame is slidably arranged in the second slide groove, the end of the inner frame extends out of the first slide groove and is rotatably connected to a bench board, the support frame can be extended or retracted along the second slide groove, when the support frame is extended from the second slide groove, the bench board is flipped outward relative to the inner frame.

[0011] As a further solution of the present invention: the folding seat also includes a first tension spring, one end of the first tension spring is connected to the inner wall of the first slide groove, the other end of the first tension spring is connected to the inner wall of the second slide groove, first mounting columns are provided on two symmetrical sides of the outer frame, first sleeves are provided on two symmetrical sides of the support plate, the first sleeve is sleeved on the first mounting column, a plurality of first convex teeth are provided on the outer periphery of the first sleeve along its circumference, a first waist-shaped hole is also provided on two symmetrical sides of the outer frame, a first sliding column is provided on two symmetrical sides of the inner frame, the first sliding column passes through the first waist-shaped hole and is connected to a gearing, an extension plate extending in the direction of the first sleeve is formed on the gearing, a plurality of second convex teeth for meshing with the first convex teeth are formed on the extension plate, an arc groove is formed on the side of the gearing facing the first sleeve, and a locking tooth is formed on the inner wall of the arc groove.

[0012] As a further scheme of the present invention: the folding seat also includes a second tension spring, the tension force of the second tension spring is greater than the tension force of the first tension spring, one end of the second tension spring is connected to the inner wall of the second slide groove, the other end of the second tension spring is connected to the support frame, and a second waist-shaped hole is opened on two symmetrical sides of the inner frame, and the support frame is provided with a second sliding column for slidingly matching with the second waist-shaped hole, the second sliding column is sleeved with a second sleeve, the second sleeve is connected to the first transmission rod, the second sliding column is provided with a second mounting column on two opposite sides of the second slide groove, the second mounting column is sleeved with a third sleeve, the second transmission rod is connected to the third sleeve, the first transmission rod and the second transmission rod are hinged, the outer side of the third sleeve is formed with a plurality of third convex teeth along its circumference, the second slide groove is provided with a third mounting column on two opposite sides and located above the second mounting column, the third mounting column is sleeved with a fourth sleeve, the outer side of the fourth sleeve is formed with a fourth convex tooth meshing with the third convex tooth, the fourth sleeve is connected to a flip plate extending out of the second slide groove, the bench plate is arranged on the flip plate, and the inner side of the bench plate is rotatably connected to the support rod.

[0013] As a further solution of the present invention: a rubber sleeve is provided on the outer periphery of the stool board, and the rubber sleeve includes a first sleeve, a second sleeve, a third sleeve and a sleeve opening ring. The first sleeve is provided on the outer periphery of the stool board, the upper part of the first sleeve is connected to the lower part of the second sleeve, and a first fold is provided at the connection between the first sleeve and the second sleeve, the upper part of the second sleeve is connected to the lower part of the third sleeve, and a second fold is provided at the connection between the second sleeve and the third sleeve, and the upper part of the third sleeve is connected to the sleeve opening ring.

[0014] As a further solution of the present invention: the folding seat also includes a folding seat support frame, the folding seat support frame is provided with a slider, the support plate is provided with a third slide groove along its length direction, the slider is slidably arranged in the third slide groove, the inner side of the support plate is provided with a mounting block, the mounting block and the starting end of the folding seat support frame are connected with a support spring, the end of the folding seat support frame is provided with a support wheel, the folding seat support frame is provided with a first mounting seat, the first mounting seat is provided with a first push-up spring, the first push-up spring is provided with a clamping block, and the support plate is provided with a clamping groove for cooperating with the clamping block.

[0015] As a further solution of the present invention: a second mounting seat is provided on the inner frame near its starting end, a second pushing spring is provided in the second mounting seat, a first stopper is provided on the second pushing spring, the first stopper is provided with a first groove for the end edge of the outer frame to be embedded in, a third mounting seat is provided on the support frame near its starting end, a third pushing spring is provided in the third mounting seat, a second stopper is provided on the third pushing spring, and the second stopper is provided with a second groove for the end edge of the inner frame to be embedded in.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a quick-release connecting frame, a limit piece, a locking piece and a clamping piece, so that the installation and removal of the seat can be completed only by moving the seat longitudinally, making the installation and removal of the seat smoother, more convenient and more labor-saving. When installing and removing the seat, there is no need to lift the seat to a high distance, which is convenient for disabled people with leg defects and elderly people with unstable walking to use.

[0018] 2. The present invention provides a folding seat, so when two people need to ride, the folding seat can be unfolded to provide a seat for relatives and friends. When one person rides, the folding seat can be folded and stored in the storage slot, which is convenient for daily use by the elderly and disabled.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the seat structure of the present invention.

[0023] Figure 3 It is a partial structural schematic diagram of the quick-release connecting frame of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the lock part of the present invention.

[0025] Figure 5 It is a partial cross-sectional view of the quick-release connecting frame of the present invention.

[0026] Figure 6 yes Figure 5 A partial enlarged view of point A.

[0027] Figure 7 It is a partial structural schematic diagram of the storage tank of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the folding seat of the present invention in an unfolded state.

[0029] Fig. 9 It is a schematic diagram of the structure of the outer frame part of the present invention.

[0030] Fig.10 yes Fig. 9 A partial enlarged view of point B.

[0031] Fig.11 It is a structural schematic diagram of the support frame part of the present invention.

[0032] Fig.12 It is a partial structural schematic diagram of the overturning frame of the present invention.

[0033] Fig.13 It is a schematic diagram of the structure of the first ferrule part of the present invention.

[0034] Fig.14 It is a partial structural schematic diagram of the folding seat support frame of the present invention.

[0035] Fig.15 It is a partial structural schematic diagram of the support spring of the present invention.

[0036] Fig.16 It is a schematic diagram of the structure of the card block part of the present invention.

[0037] Fig.17 It is a schematic diagram of the structure of the first stopper part of the present invention.

[0038] In the figure:

[0039] 1. chassis, 2. seat; 3. seat support frame; 4. quick-release connecting frame; 5. folding seat, 6. locking member, 7. accommodating space, 8. positioning member, 9. limiting member, 11. storage slot, 41. side frame, 42. retaining edge, 43. side baffle, 44. through slot, 51. outer frame, 52. inner frame, 53. support plate, 54. support frame, 55. bench board, 56. first tension spring, 57. second tension spring, 58. folding seat support frame, 511. first slide slot, 512. first mounting column, 513. The first waist-shaped hole, 521, the second slide groove, 522, the first slide column, 523, the gear, 524, the extension plate, 525, the second protruding tooth, 526, the arc groove, 527, the latch, 528, the second waist-shaped hole, 529, the second mounting column, 5210, the third sleeve, 5211, the second transmission rod, 5212, the third protruding tooth, 5213, the third mounting column, 5214, the fourth sleeve, 5215, the fourth protruding tooth, 5216, the flip plate, 5217, the second mounting seat, 5218, the second Push spring, 5219, first block, 5220, first groove, 531, first sleeve, 532, first convex tooth, 533, third slide groove, 534, mounting block, 535, slot, 541, second slide column, 542, second sleeve, 543, first transmission rod, 544, third mounting seat, 545, third push spring, 546, second block, 547, second groove, 551, support rod, 552, rubber sleeve, 553, first ring, 554, second ring, 555, first Three ferrules, 556, ferrule ring, 557, first fold, 558, second fold, 581, slider, 582, support spring, 583, first mounting seat, 584, first push spring, 585, block, 586, support wheel, 61, mounting plate, 62, hinge seat, 63, rotating shaft, 64, lock, 65, torsion spring, 66, unlocking rod, 67, unlocking handle, 68, limit pin, 81, first L-shaped plate, 82, positioning pin, 83, chamfer, 91, second L-shaped plate, 92, limit hole. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 17 In an embodiment of the present invention, a mobility scooter includes a chassis 1, a seat 2, a seat support frame 3, a quick-release connecting frame 4 and a folding seat 5; wherein the seat support frame 3 is arranged on the top of the chassis 1, the quick-release connecting frame 4 is arranged on the upper end of the seat support frame 3, a locking member 6 and an accommodating space 7 are arranged on the quick-release connecting frame 4 along the longitudinal front and rear, a limiting member 9 and a positioning member 8 are arranged on the bottom of the seat 2 along the longitudinal front and rear, the positioning member 8 can move along the longitudinal direction to extend into the accommodating space 7, after the positioning member 8 extends into the accommodating space 7, the locking member 6 abuts against the limiting member 9 to prevent the positioning member 8 from being separated from the accommodating space 7, and a storage groove 11 is provided on the top of the chassis 1 behind the seat support frame 3, and the folding seat 5 can be folded and stored in the storage groove 11.

[0042] By setting the quick-release connecting frame 4, the locking member 6, the accommodating space 7, the limiting member 9 and the positioning member 8, during the installation of the seat 2, the seat 2 is placed on the quick-release connecting frame 4, and then the seat 2 is pushed backward to move so that the positioning member 8 extends into the accommodating space 7, and the locking member 6 is pressed against the limiting member 9 to complete the installation of the seat 2. During disassembly, the locking member 6 is unlocked, and then the seat 2 is pushed forward to make the positioning member 8 disengage from the accommodating space 7 to complete the disassembly of the seat 2. In this way, the installation and disassembly of the seat 2 can be completed by moving the seat 2 longitudinally, making the installation and disassembly of the seat 2 smoother, more convenient and labor-saving. When installing and disassembling the seat 2, there is no need to lift the seat 2 to a high distance, which is convenient for disabled people with leg defects and elderly people with unstable walking. In addition, through the setting of the folding seat 5 of the present invention, when two people need to ride, the folding seat 5 can be unfolded to provide a riding position for relatives and friends, and when one person rides, it can be folded and stored in the storage groove 11, which is convenient for daily use by the elderly and disabled.

[0043] The positioning member 8 includes a first L-shaped plate 81, the transverse plate of the first L-shaped plate 81 is connected to the seat 2, a positioning pin 82 is provided on the vertical plate of the first L-shaped plate 81, the quick-release connecting frame 4 is surrounded by four side frames 41, and a retaining edge 42 extends inward from the edge of the side frame 41, and an accommodating space 7 is limited between the retaining edge 42 and the side frame 41. When the first L-shaped plate 81 moves to a certain position in the longitudinal direction, the positioning pin 82 extends into the accommodating space 7, and side baffles 43 are symmetrically arranged on the quick-release connecting frame 4, and chamfers 83 are provided on the left and right sides of the transverse plate of the first L-shaped plate 81. It can be understood that the accommodating space 7 is located near the rear end of the quick-release connecting frame 4, and the first L-shaped plate 81 is located at the bottom rear end of the seat 2. During installation, the seat 2 is pushed to move backward so that the first L-shaped plate 81 moves to a position close to the rear end of the quick-release connecting frame 4. The positioning pin 82 on the vertical plate of the first L-shaped plate 81 extends into the accommodating space 7, thereby limiting the upward or downward movement of the seat 2. When the seat 2 is pushed to move, the two side baffles 43 can limit the transverse plate of the first L-shaped plate 81 to prevent displacement during movement. After the seat 2 is installed, the two side baffles 43 can also limit the movement of the seat 2 to the left or right. The setting of the chamfer 83 can play a guiding role, making it easy to push the transverse plate of the first L-shaped plate 81 between the two side baffles 43.

[0044] The limiting member 9 includes a second L-shaped plate 91, a transverse plate of the second L-shaped plate 91 is connected to the seat 2, the locking member 6 includes a mounting plate 61, the mounting plate 61 is transversely arranged on the quick-release connecting frame 4, a hinge seat 62 is provided at the bottom of the mounting plate 61, a lock buckle 64 is rotatably connected to the hinge seat 62 through a rotating shaft 63, a torsion spring 65 is sleeved on the rotating shaft 63, one end of the torsion spring 65 is connected to the hinge seat 62, and the other end of the torsion spring 65 is connected to the lock buckle 64. After the locating pin 82 extends into the accommodating space 7, under the action of the torsion spring 65, the lock buckle 64 presses against the vertical plate of the second L-shaped plate 91, an unlocking rod 66 is provided at the bottom of the lock buckle 64, a through slot 44 is provided at the front end of the quick-release connecting frame 4, and the end of the unlocking rod 66 extends out from the through slot 44 and is connected to an unlocking handle 67. It can be understood that the mounting plate 61 is located near the front end of the quick-release connecting frame 4. After the positioning pin 82 extends into the accommodating space 7, the lock buckle 64 abuts against the vertical plate of the second L-shaped plate 91, limiting the movement of the seat 2 in the front and rear directions, thereby preventing the positioning pin 82 from being separated from the accommodating space 7. When disassembling, the unlocking handle 67 is pressed to drive the lock buckle 64 to flip downward, so that the lock buckle 64 is separated from the vertical plate of the second L-shaped plate 91, and the seat 2 can be moved forward to separate the seat 2 and the quick-release connecting frame 4.

[0045] It should also be noted that the cross-sectional shape of the hinge seat 62 is an inverted U shape. First shaft holes are provided on both side walls of the hinge seat 62. The cross-sectional shape of the lock 64 is a U shape. Second shaft holes are provided on both side walls of the lock 64. The two side walls of the lock 64 are respectively attached to the two side walls of the hinge seat 62. The first shaft hole and the second shaft hole are communicated. The rotating shaft 63 is inserted into the first shaft hole and the second shaft hole. One end of the torsion spring 65 abuts against the inner end surface of the hinge seat 62, and the other end of the torsion spring 65 abuts against the inner end surface of the lock 64. In this way, both the hinge seat 62 and the lock 64 can be formed by sheet metal stamping and bending, which is easy to process, can save processing costs, and both the hinge seat 62 and the lock 64 adopt a U-shaped structure design, providing an installation space for the torsion spring 65, with reasonable design and convenient assembly.

[0046] A plurality of limiting holes 92 are provided on the vertical plate of the second L-shaped plate 91, and a plurality of limiting pins 68 are provided at the bottom of the mounting plate 61. The number of the limiting pins 68 is the same as that of the limiting holes 92. When the second L-shaped plate 91 moves along the longitudinal direction of the quick-release connecting frame 4 to a certain position, the respective limiting pins 68 are respectively inserted into the respective limiting holes 92. It can be understood that by the cooperation of the limiting holes 92 and the limiting pins 68, the degrees of freedom of the seat 2 in the left-right direction and the up-down direction are restricted, so that the seat 2 is installed more firmly.

[0047] The folding seat 5 includes an outer frame 51. The starting end of the outer frame 51 is rotatably connected to the inner wall of the storage groove 11. A first sliding groove 511 is provided on the outer frame 51 along its length direction. An inner frame 52 is slidably arranged in the first sliding groove 511. The inner frame 52 can extend or retract along the first sliding groove 511. The end of the outer frame 51 is rotatably connected to a support plate 53. When the inner frame 52 extends out of the first sliding groove 511, the support plate 53 turns outwards relative to the outer frame 51. A second sliding groove 521 is provided on the inner frame 52 along its length direction. A support frame 54 is slidably arranged in the second sliding groove 521. The end of the inner frame 52 extends out of the first sliding groove 511 and is rotatably connected to a stool board 55. The support frame 54 can extend or retract along the second sliding groove 521. When the support frame 54 extends out of the second sliding groove 521, the stool board 55 turns outwards relative to the inner frame 52. When two people need to sit, the outer frame 51 can be lifted, and then the support frame 54 and the inner frame 52 can be pulled out, so that the support plate 53 and the stool board 55 turn outwards, so that the folding seat 5 is in an unfolded state for relatives and friends to sit.

[0048] The folding seat 5 also includes a first tension spring 56, one end of the first tension spring 56 is connected to the inner wall of the first slide groove 511, and the other end of the first tension spring 56 is connected to the inner wall of the second slide groove 521. The outer frame 51 is symmetrically provided with first mounting posts 512 on two sides, and the support plate 53 is symmetrically provided with first sleeves 531 on two sides. The first sleeve 531 is sleeved on the first mounting posts 512. The outer periphery of the first sleeve 531 is provided with a plurality of first protruding teeth 532 along its circumferential direction. The outer frame 51 is also symmetrically provided with first mounting posts 512 on two sides. A waist-shaped hole 513, and first sliding columns 522 are symmetrically arranged on two sides of the inner frame 52. The first sliding column 522 passes through the first waist-shaped hole 513 and is connected to a gearing 523. The gearing 523 is formed with an extension plate 524 extending toward the first sleeve 531, and the extension plate 524 is formed with a plurality of second convex teeth 525 for meshing with the first convex teeth 532. An arc groove 526 is formed on the side of the gearing 523 facing the first sleeve 531, and a latch tooth 527 is formed on the inner wall of the arc groove 526. After the inner frame 52 is pulled out of the first sliding groove 511 to a certain length, the first protruding tooth 532 on the extension plate 524 will mesh with the second protruding tooth 525, driving the first sleeve 531 to rotate, thereby driving the support plate 53 to flip outward. When the support plate 53 flips outward to a certain angle, the locking tooth 527 on the inner wall of the arc groove 526 is inserted into the gap between two adjacent first protruding teeth 532, preventing the first sleeve 531 from rotating, thereby preventing the support plate 53 from flipping.

[0049] The folding seat 5 also includes a second tension spring 57, the tension of the second tension spring 57 is greater than the tension of the first tension spring 56, one end of the second tension spring 57 is connected to the inner wall of the second slide groove 521, the other end of the second tension spring 57 is connected to the support frame 54, and the inner frame 52 is provided with a second waist-shaped hole 528 on two symmetrical sides, and the support frame 54 is provided with a second slide column 541 for slidingly matching with the second waist-shaped hole 528, and the second slide column 541 is sleeved with a second sleeve 542, and the second sleeve 542 is connected to the first transmission rod 543, and the second slide groove 521 is provided with a second installation column 529 on two opposite sides, and the second installation column 529 is sleeved with a third sleeve 5210, and the third sleeve 5210 is connected to There is a second transmission rod 5211, the first transmission rod 543 and the second transmission rod 5211 are hinged, and the outer side of the third sleeve 5210 is formed with a plurality of third convex teeth 5212 along its circumference, and a third mounting column 5213 is provided on the opposite sides of the second slide groove 521 and above the second mounting column 529, and a fourth sleeve 5214 is sleeved on the third mounting column 5213, and the outer side of the fourth sleeve 5214 is formed with a fourth convex tooth 5215 meshing with the third convex tooth 5212, and the fourth sleeve 5214 is connected to a flip plate 5216 extending from the second slide groove 521, and a bench plate 55 is arranged on the flip plate 5216, and the inner side of the bench plate 55 is rotatably connected to a support rod 551. It should be noted that the outer frame 51 and the inner frame 52 are connected by the first tension spring 56, and the support frame 54 and the inner frame 52 are connected by the second tension spring 57. Since the tension of the second tension spring 57 is greater than the tension of the first tension spring 56, when the support frame 54 is pulled to move, the first tension spring 56 begins to deform first, and the inner frame 52 slides out of the first slide groove 511 first, so that the support plate 53 is turned outward to a certain angle, and then the second tension spring 57 begins to deform, and the support frame 54 slides out of the second slide groove 521, so that the second slide column 541 slides along the second waist-shaped hole 528 When the second sliding column 541 moves, the third sleeve 5210 is driven to rotate through the transmission of the first sleeve 531, the first transmission rod 543 and the second transmission rod 5211. When the third sleeve 5210 rotates, the third convex tooth 5212 and the fourth convex tooth 5215 cooperate to drive the fourth sleeve 5214 to rotate. The rotation of the fourth sleeve 5214 drives the flip plate 5216 to flip outward, thereby driving the bench board 55 to flip outward. After the bench board 55 is flipped outward, the support rod 551 is flipped out so that its end is against the inner frame 52 to support the bench board 55.

[0050] The outer periphery of the bench plate 55 is sleeved with a rubber sleeve 552, and the rubber sleeve 552 includes a first ring 553, a second ring 554, a third ring 555 and a collar ring 556. The first ring 553 is sleeved on the outer periphery of the bench plate 55, the upper part of the first ring is connected to the lower part of the second ring 554, and a first fold 557 is provided at the connection between the first ring 553 and the second ring 554, the upper part of the second ring is connected to the lower part of the third ring 555, and a second fold 558 is provided at the connection between the second ring 554 and the third ring 555, and the upper part of the third ring 555 is connected to the collar ring 556. When the folding seat 5 is in a folded state, the mouth ring 556 can be pulled to pull up the second ring 554 and the third ring 555 to form a semi-enclosed frame with the bench board 55, which is convenient for placing items. When the folding seat 5 is in an unfolded state, the second ring 554 and the third ring 555 can be folded into a flat shape along the first fold 557 and the second fold 558 for relatives and friends to sit on.

[0051] The folding seat 5 also includes a folding seat support frame 58, on which a slider 581 is provided, and a third slide groove 533 is provided on the support plate 53 along its length direction, and the slider 581 is slidably set in the third slide groove 533, and a mounting block 534 is provided on the inner side of the support plate 53, and a support spring 582 is connected between the mounting block 534 and the starting end of the folding seat support frame 58, and a support wheel 586 is provided at the end of the folding seat support frame 58, and a first mounting seat 583 is provided on the folding seat support frame 58, and a first push-up spring 584 is provided in the first mounting seat 583, and a clamping block 585 is provided on the first push-up spring 584, and a clamping groove 535 for cooperating with the clamping block 585 is provided on the support plate 53. It should be noted that when the folding seat 5 is in a folded state, the block 585 and the slot 535 are engaged with each other to prevent the folding seat support frame 58 from sliding out. When the folding seat 5 is in an unfolded state, the block 585 can be pressed to disengage the block 585 from the slot 535, and the folding seat support frame 58 slides out under the action of the support spring 582, so that the support wheel 586 contacts the ground to support the outer frame 51.

[0052] A second mounting seat 5217 is provided on the inner frame 52 near its starting end, a second pushing spring 5218 is provided in the second mounting seat 5217, a first stopper 5219 is provided on the second pushing spring 5218, a first groove 5220 is provided on the first stopper 5219 for the end edge of the outer frame 51 to be embedded in, a third mounting seat 544 is provided on the support frame 54 near its starting end, a third pushing spring 545 is provided in the third mounting seat 544, a second stopper 546 is provided on the third pushing spring 545, and a second groove 547 is provided on the second stopper 546 for the end edge of the inner frame 52 to be embedded in. When the inner frame 52 and the support frame 54 are pulled out to a certain length, the second push-up spring 5218 and the third push-up spring 545 push up the second stop block 546 and the third stop block to respectively press against the outer frame 51 and the inner frame 52, so that the inner frame 52 and the support frame 54 are in an extended state. When the inner frame 52 and the support frame 54 need to be retracted, it is only necessary to press the second stop block 546 and the third stop block, and the inner frame 52 and the support frame 54 can be retracted under the action of the first tension spring 56 and the second tension spring 57.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A mobility scooter, characterized in that: It includes chassis, seat, seat support frame, quick-release connection frame and folding seat; Among them, the seat support frame is arranged on the top of the chassis, the quick-release connecting frame is arranged at the upper end of the seat support frame, the quick-release connecting frame is provided with locking parts and accommodating space along the longitudinal front and rear, and the bottom of the seat is provided with limiting parts and positioning parts along the longitudinal front and rear. The positioning part can move along the longitudinal direction to extend into the accommodating space. After the positioning part extends into the accommodating space, the locking part resists the limiting part to prevent the positioning part from being separated from the accommodating space. The top of the chassis is located behind the seat support frame and is provided with a storage groove, and the folding seat can be folded and stored in the storage groove.

2. The scooter according to claim 1, characterized in that: The positioning member includes a first L-shaped plate, the transverse plate of the first L-shaped plate is connected to the seat, the vertical plate of the first L-shaped plate is provided with a positioning pin, the quick-release connecting frame is surrounded by four side frames, the edges of the side frames have guards extending inwardly, and an accommodating space is limited between the guards and the side frames. When the first L-shaped plate moves to a certain position in the longitudinal direction, the positioning pin extends into the accommodating space, and side guard plates are symmetrically arranged on the quick-release connecting frame, and chamfers are provided on the left and right sides of the transverse plate of the first L-shaped plate.

3. The scooter according to claim 2, characterized in that: The limiting member includes a second L-shaped plate, the transverse plate of the second L-shaped plate is connected to the seat, the locking member includes a mounting plate, the mounting plate is transversely arranged on the quick-release connecting frame, a hinge seat is provided at the bottom of the mounting plate, a lock buckle is rotatably connected to the hinge seat through a rotating shaft, a torsion spring is sleeved on the rotating shaft, a torsion arm at one end of the torsion spring is connected to the hinge seat, and a torsion arm at the other end of the torsion spring is connected to the lock buckle, after the locating pin extends into the accommodating space, under the action of the torsion spring, the lock buckle presses against the vertical plate of the second L-shaped plate, an unlocking rod is provided at the bottom of the lock buckle, a through slot is provided at the front end of the quick-release connecting frame, and the end of the unlocking rod extends from the through slot and is connected to an unlocking handle.

4. The scooter according to claim 3, characterized in that: A plurality of limit holes are provided on the vertical plate of the second L-shaped plate, and a plurality of limit pins are provided on the bottom of the mounting plate. The number of the limit pins is consistent with the number of the limit holes. When the second L-shaped plate moves to a certain position along the longitudinal direction of the quick-release connecting frame, the limit pins are respectively inserted into the limit holes.

5. The scooter according to claim 1, characterized in that: The folding seat includes an outer frame, the starting end of the outer frame is rotatably connected to the inner wall of the storage groove, the outer frame is provided with a first slide groove along its length direction, the inner frame is slidably arranged in the first slide groove, the inner frame can be extended or retracted along the first slide groove, the end of the outer frame is rotatably connected to a support plate, when the inner frame is extended from the first slide groove, the support plate is flipped outward relative to the outer frame, a second slide groove is provided on the inner frame along its length direction, a support frame is slidably arranged in the second slide groove, the end of the inner frame extends out of the first slide groove and is rotatably connected to a bench board, the support frame can be extended or retracted along the second slide groove, when the support frame is extended from the second slide groove, the bench board is flipped outward relative to the inner frame.

6. The scooter according to claim 5, characterized in that: The folding seat also includes a first tension spring, one end of the first tension spring is connected to the inner wall of the first slide groove, and the other end of the first tension spring is connected to the inner wall of the second slide groove. First mounting columns are provided on two symmetrical sides of the outer frame, and first sleeves are provided on two symmetrical sides of the support plate. The first sleeve is sleeved on the first mounting column, and a plurality of first convex teeth are provided on the outer periphery of the first sleeve along its circumference. First waist-shaped holes are also provided on two symmetrical sides of the outer frame, and first sliding columns are provided on two symmetrical sides of the inner frame. The first sliding columns pass through the first waist-shaped holes and are connected to a gearing. An extension plate extending in the direction of the first sleeve is formed on the gearing, and a plurality of second convex teeth for meshing with the first convex teeth are formed on the extension plate. An arc groove is formed on the side of the gearing facing the first sleeve, and a locking tooth is formed on the inner wall of the arc groove.

7. The mobility scooter according to claim 6, characterized in that: The folding seat also includes a second tension spring, the tension force of the second tension spring is greater than the tension force of the first tension spring, one end of the second tension spring is connected to the inner wall of the second slide groove, the other end of the second tension spring is connected to the support frame, and a second waist-shaped hole is opened on two symmetrical sides of the inner frame, and the support frame is provided with a second sliding column for slidingly matching with the second waist-shaped hole, the second sliding column is sleeved with a second sleeve, the second sleeve is connected to the first transmission rod, the second sliding groove is provided with a second mounting column on two opposite sides, the second mounting column is sleeved with a third sleeve, the third sleeve is connected to the second transmission rod, the first transmission rod and the second transmission rod are hinged on the outer side of the third sleeve along its circumference, a third mounting column is provided on two opposite sides of the second slide groove and above the second mounting column, a fourth sleeve is sleeved on the third mounting column, a fourth sleeve is sleeved on the fourth mounting column, a fourth convex tooth is formed on the outer side of the fourth sleeve and meshed with the third convex tooth, the fourth sleeve is connected to a flip plate extending out of the second slide groove, the bench plate is arranged on the flip plate, and the inner side of the bench plate is rotatably connected to the support rod.

8. The scooter according to claim 7, characterized in that: The outer periphery of the stool board is covered with a rubber sleeve, which includes a first ring, a second ring, a third ring and a mouth ring. The first ring is covered on the outer periphery of the stool board, the upper part of the first ring is connected to the lower part of the second ring, and a first fold is provided at the connection between the first ring and the second ring, the upper part of the second ring is connected to the lower part of the third ring, and a second fold is provided at the connection between the second ring and the third ring, and the upper part of the third ring is connected to the mouth ring.

9. The scooter according to claim 8, characterized in that: The folding seat also includes a folding seat support frame, a slider is provided on the folding seat support frame, a third slide groove is opened on the support plate along its length direction, the slider is slidably arranged in the third slide groove, a mounting block is provided on the inner side of the support plate, a supporting spring is connected to the mounting block and the starting end of the folding seat support frame, a supporting wheel is provided at the end of the folding seat support frame, a first mounting seat is provided on the folding seat support frame, a first pushing spring is provided in the first mounting seat, a clamping block is provided on the first pushing spring, and a clamping groove for cooperating with the clamping block is opened on the support plate.

10. The mobility scooter according to claim 9, characterized in that: A second mounting seat is provided on the inner frame near its starting end, a second pushing spring is provided in the second mounting seat, a first stopper is provided on the second pushing spring, a first groove is provided on the first stopper for the end edge of the outer frame to be embedded in, a third mounting seat is provided on the support frame near its starting end, a third pushing spring is provided in the third mounting seat, a second stopper is provided on the third pushing spring, and a second groove is provided on the second stopper for the end edge of the inner frame to be embedded in.

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