A compact folding scooter

Abstract

The application provides a compact folding scooter, which comprises a folding linkage mechanism, a seat mechanism, a head mechanism and a rear wheel mechanism, the folding linkage mechanism comprises a head mounting frame, a tail mounting frame, a front body frame, a rear body frame, a locking device, a seat linkage assembly and a seat mounting frame, the front end of the front body frame is hinged to the head mounting frame, the front end of the rear body frame is hinged to the lower middle part of the front body frame, the front end of the tail mounting frame is hinged to the rear end of the rear body frame, the locking device comprises a first rotating plate, a second rotating plate, a pressing rod, a first connecting plate, a second connecting plate, a first buckle plate, a second buckle plate, a first convex column, a second convex column, a first spring and a second spring, and the seat linkage assembly comprises a front connecting rod, a rear connecting rod, a reinforcing connecting rod and a shock absorber, and the folding scooter has the advantages that the two sets of cross connecting rods are abandoned, the structure of the folding scooter is more compact, and the folding scooter is more space-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scooters, in particular to a compact folding scooter. BACKGROUND

[0002] Scooters, also known as lazy cars, are transportation tools and auxiliary tools for the purpose of walking. In order to facilitate storage in a small car for outdoor use, the scooter is generally set as a folding type. When storing, the scooter is folded to reduce the occupied space, thereby facilitating storage in the trunk of the small car. However, the folding scooter is not compact enough in structure after folding, which makes it difficult to put other objects in the trunk after placing the scooter in the trunk. The folding mechanism of the scooter needs to be further optimized, so that the folded scooter occupies less space and leaves more space for the trunk. Therefore, it is necessary to make a compact folding scooter to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a compact folding scooter to solve the problems mentioned in the background.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] The utility model provides a compact folding scooter, which comprises a folding linkage mechanism, a seat mechanism, a front wheel mechanism and a rear wheel mechanism. The folding linkage mechanism comprises a front wheel mounting frame, a rear wheel mounting frame, a front body frame, a rear body frame, a locking device, a seat linkage assembly and a seat mounting frame. The front end of the front body frame is hingedly connected to the front wheel mounting frame. The front end of the rear body frame is hingedly connected to the lower middle part of the front body frame. The front end of the rear wheel mounting frame is hingedly connected to the rear end of the rear body frame. The locking device comprises a first rotating plate, a second rotating plate, a pressing rod, a first connecting plate, a second connecting plate, a first clamping plate, a second clamping plate, a first protruding column, a second protruding column, a first spring and a second spring. The middle part of the first rotating plate is hingedly connected to the left rear end of the front body frame. The middle part of the second rotating plate is hingedly connected to the right rear end of the front body frame. The left and right sides of the pressing rod are respectively fixed to the upper ends of the first rotating plate and the second rotating plate. The upper end of the first clamping plate is hingedly connected to the front body frame and corresponds to the front side of the first rotating plate. The upper end of the second clamping plate is hingedly connected to the front body frame and corresponds to the front side of the second rotating plate. The two ends of the first connecting plate are respectively hingedly connected to the lower end of the first rotating plate and the lower end of the first clamping plate. The two ends of the second connecting plate are respectively hingedly connected to the lower end of the second rotating plate and the lower end of the second clamping plate. The front end of the first spring is fixed to the front body frame, and the rear end is fixed to the middle part of the first clamping plate. The front end of the second spring is fixed to the front body frame, and the rear end is fixed to the middle part of the second clamping plate. The first protruding column and the second protruding column are both fixed to the rear body frame. In the unfolded state, the front end of the first clamping plate is clamped with the first protruding column. In the folded state, the front end of the second clamping plate is clamped with the second protruding column. The seat mounting frame is arranged above the rear body frame. The seat linkage assembly comprises a front connecting rod, a rear connecting rod, a reinforcing connecting rod and a shock absorber. The upper end of the front connecting rod is hingedly connected to the front end of the seat mounting frame, and the lower end is hingedly connected to the middle part of the rear body frame. The upper end of the rear connecting rod is hingedly connected to the rear end of the seat mounting frame, and the lower end is hingedly connected to the rear end of the rear body frame. The upper end of the reinforcing connecting rod is hingedly connected to the middle part of the front connecting rod, and the lower end is hingedly connected to the front body frame and corresponds to the front side of the front connecting rod. The upper end of the shock absorber is hingedly connected to the middle part of the rear connecting rod, and the lower end is hingedly connected to the rear wheel mounting frame. One set of the front connecting rod, the rear connecting rod, the reinforcing connecting rod and the shock absorber is arranged on the left and right sides of the rear body frame. The lower end of the front connecting rod of the two sets is curved inward and corresponds to the inner side of the rear connecting rod. The seat mechanism is fixed above the seat mounting frame. The front wheel mechanism is fixed to the front wheel mounting frame. The rear wheel mechanism is fixed to the rear wheel mounting frame.

[0006] Further description of the utility model: the left side of the front body frame is provided with a first hinged plate, and the right side is provided with a second hinged plate. The lower end of the first hinged plate is hingedly connected to the front end of the rear body frame. The lower end of the second hinged plate is hingedly connected to the front end of the rear body frame.

[0007] Further description of the present application: further includes a first linkage rod and a second linkage rod, the front end of the first linkage rod is hinged to the front mounting frame and corresponds to below the front body frame, the rear end is hinged to the front end of the rear body frame and corresponds to the rear side of the first hinged plate, the front end of the second linkage rod is hinged to the front mounting frame and corresponds to below the front body frame, and the rear end is hinged to the front end of the rear body frame and corresponds to the rear side of the second hinged plate.

[0008] Further description of the present application: further includes anti-rollover rear wheels, the anti-rollover rear wheels are rotatably installed on the left and right sides behind the rear mounting frame.

[0009] Further description of the present application: the seat mechanism includes a seat assembly, a width adjustment assembly, an armrest assembly and a backrest assembly, the width adjustment assembly includes a fixed cylinder, an extension cylinder, a connecting column, a first locking screw and a first knob, the fixed cylinder is fixed to the rear side of the seat assembly, one end of the extension cylinder is provided in the fixed cylinder, the rear side of the extension cylinder is provided with a strip-shaped hole, the connecting column is fixed to the rear side of the fixed cylinder and corresponds to the strip-shaped hole, the first locking screw is threadedly connected with the connecting column, the front end of the first locking screw is provided through the fixed cylinder and the strip-shaped hole and contacts the inner wall top of the front side of the extension cylinder, the first knob is fixed to the rear side of the first locking screw, the extension cylinder, the connecting column, the first locking screw and the first knob are provided in two groups and correspond to the left and right sides of the fixed cylinder, the armrest assembly includes a connecting cylinder, a lifting rod, a second locking screw, a second knob and an armrest body, the inner side of the connecting cylinder is fixed to the outer side of the extension cylinder, the lifting rod is vertically provided in the connecting cylinder, a plurality of through holes are provided on the lifting rod, the second locking screw is provided through the outer side of the connecting cylinder and the through hole, the inner side of the second locking screw is threadedly connected with the inner side of the connecting cylinder, the second knob is fixed to the outer side of the second locking screw, and the armrest body is fixed to the upper end of the lifting rod. The armrest assembly is provided in two groups and corresponds to the left and right sides of the width adjustment assembly, and the lower end of the backrest assembly is rotatably installed above the fixed cylinder.

[0010] Further description of the present application: the backrest assembly includes a rotating support, a support plate, a mounting frame and a back cushion, the rotating support is fixed above the fixed cylinder, the front end of the support plate is rotatably installed on the rotating support, the rear end of the support plate is provided with a downwardly protruding boss, the front end of the boss contacts the rear end of the fixed cylinder, the rotating support and the support plate are each provided in two groups, the lower end of the mounting frame is fixed to the rear end of the two groups of support plates, and the back cushion is fixed to the upper end of the mounting frame.

[0011] The present application has the beneficial effects that in the scooter unfolded state, the first buckle plate and the first convex column are buckled, the front vehicle body frame body and the rear vehicle body frame body are in a horizontal and fixed state, when the scooter is folded, the downward pressure on the pressing rod makes the first buckle plate disengage from the first convex column, in the process of manually folding the front vehicle body frame body and the rear vehicle body frame body, the front connecting rod gradually approaches the rear connecting rod and finally corresponds to the inside of the rear connecting rod under the driving of the rear vehicle body frame body and the reinforced connecting rod, the form of the previous two groups of connecting rods cross setting is abandoned, the folded scooter structure is more compact and more space-saving. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the overall structure diagram of the present application (unfolded state);

[0013] Figure 2 is the overall structure diagram of the present application (folded state);

[0014] Figure 3 is the overall structure diagram of the folding linkage mechanism in the present application (view angle one);

[0015] Figure 4 is the overall structure diagram of the folding linkage mechanism in the present application (view angle two);

[0016] Figure 5 is the folded state structure diagram of the folding linkage mechanism in the present application;

[0017] Figure 6 is Figure 3 the local enlarged view of position A in the present application;

[0018] Figure 7 is Figure 4 the local enlarged view of position B in the present application;

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 1, folding linkage mechanism; 11, front head mounting frame; 12, rear tail mounting frame; 13, front body frame; 131, first hinged plate; 132, second hinged plate; 14, rear body frame; 15, locking device; 1501, first rotating plate; 1502, second rotating plate; 1503, pressing rod; 1504, first connecting plate; 1505, second connecting plate; 1506, first buckling plate; 1507, second buckling plate; 1508, first protruding column; 1509, second protruding column; 1510, first spring; 1511, second spring; 16, seat linkage assembly; 161, front connecting rod; 162, rear connecting rod; 163, reinforcing connecting rod; 164, shock absorber; 17, seat mounting frame; 18, first linkage rod; 19, second linkage rod; 110, anti-rollover rear wheel; 2, seat mechanism; 21, seat assembly; 22, width adjustment assembly; 221, fixed cylinder; 222, telescopic cylinder; 2221, strip-shaped hole; 223, connecting column; 224, first locking screw; 225, first knob; 23, armrest assembly; 231, connecting cylinder; 232, lifting rod; 2321, through hole; 233, second locking screw; 234, second knob; 235, armrest body; 24, backrest assembly; 241, rotating support; 242, support plate; 2421, protruding table; 243, mounting frame; 244, cushion; 3, front head mechanism; 4, rear wheel mechanism. DETAILED DESCRIPTION

[0021] The application will be further described below in conjunction with the drawings:

[0022] As Figures 1 to 11The structure is compact, and the folding scooter comprises a folding linkage mechanism 1, a seat mechanism 2, a front wheel mechanism 3 and a rear wheel mechanism 4. The folding linkage mechanism 1 comprises a front wheel mounting frame 11, a rear wheel mounting frame 12, a front body frame 13, a rear body frame 14, a locking device 15, a seat linkage assembly 16 and a seat mounting frame 17. The front end of the front body frame 13 is hingedly connected to the front wheel mounting frame 11, the front end of the rear body frame 14 is hingedly connected to the lower middle part of the front body frame 13, the front end of the rear wheel mounting frame 12 is hingedly connected to the rear end of the rear body frame 14, and the locking device 15 comprises a first rotating plate 1501, a second rotating plate 1502, a pressing rod 1503, a first connecting plate 1504, a second connecting plate 1505, a first buckle plate 1506, a second buckle plate 1507, a first protruding column 1508, a second protruding column 1509, a first spring 1510 and a second spring 1511. The middle part of the first rotating plate 1501 is hingedly connected to the left rear end of the front body frame 13, the middle part of the second rotating plate 1502 is hingedly connected to the right rear end of the front body frame 13, the left and right sides of the pressing rod 1503 are fixed to the upper ends of the first rotating plate 1501 and the second rotating plate 1502 respectively, the upper end of the first buckle plate 1506 is hingedly connected to the front body frame 13 and corresponds to the front side of the first rotating plate 1501, the upper end of the second buckle plate 1507 is hingedly connected to the front body frame 13 and corresponds to the front side of the second rotating plate 1502, the two ends of the first connecting plate 1504 are hingedly connected to the lower end of the first rotating plate 1501 and the lower end of the first buckle plate 1506 respectively, the two ends of the second connecting plate 1505 are hingedly connected to the lower end of the second rotating plate 1502 and the lower end of the second buckle plate 1507 respectively, the front end of the first spring 1510 is fixed to the front body frame 13, the rear end is fixed to the middle part of the first buckle plate 1506, the front end of the second spring 1511 is fixed to the front body frame 13, the rear end is fixed to the middle part of the second buckle plate 1507, the first protruding column 1508 and the second protruding column 1509 are both fixed to the rear body frame 14, in the unfolded state, the front end of the first buckle plate 1506 is buckled with the first protruding column 1508, in the folded state, the front end of the second buckle plate 1507 is buckled with the second protruding column 1509, the seat mounting frame 17 is arranged above the rear body frame 14, the seat linkage assembly 16 comprises a front connecting rod 161, a rear connecting rod 162, a reinforcing connecting rod 163 and a shock absorber 164, the upper end of the front connecting rod 161 is hingedly connected to the front end of the seat mounting frame 17, the lower end is hingedly connected to the middle part of the rear body frame 14, the upper end of the rear connecting rod 162 is hingedly connected to the rear end of the seat mounting frame 17, the lower end is hingedly connected to the rear end of the rear body frame 14, the upper end of the reinforcing connecting rod 163 is hingedly connected to the middle part of the front connecting rod 161, the lower end is hingedly connected to the front body frame 13 and corresponds to the front side of the front connecting rod 161, the upper end of the shock absorber 164 is hingedly connected to the middle part of the rear connecting rod 162, the lower end is hingedly connected to the rear wheel mounting frame 12, the front connecting rod 161, the rear connecting rod 162, the reinforcing connecting rod 163 and the shock absorber 164 are arranged in two groups on the left and right sides of the rear body frame 14, the lower ends of the two groups of front connecting rods 161 are curved inward and correspond to the inner sides of the two groups of rear connecting rods 162,The seat mechanism 2 is fixed above a seat mounting frame 17, the head mechanism 3 is fixed on a head mounting frame 11, and the rear wheel mechanism 4 is fixed on a tail mounting frame 12.

[0023] The head mounting frame 11 is used for mounting the head mechanism 3, the tail mounting frame 12 is used for mounting the rear wheel mechanism 4, and the seat mounting frame 17 is used for mounting the seat mechanism 2. In the unfolded state of the scooter, the first buckle plate 1506 is buckled with the first protruding column 1508 under the action of the first spring 1510, and the front body frame 13 and the rear body frame 14 are in a horizontal and fixed state. When folding the scooter, the pressing rod 1503 is pressed downward, the pressing rod 1503 drives the first buckle plate 1506 to rotate through the first rotating plate 1501, so that the first buckle plate 1506 is separated from the first protruding column 1508, so that the front body frame 13 and the rear body frame 14 are no longer fixed. In the process of manually folding the front body frame 13 and the rear body frame 14, the front connecting rod 161 gradually approaches the rear connecting rod 162 and finally corresponds to the inside of the rear connecting rod 162 under the drive of the rear body frame 14 and the reinforced connecting rod 163, and the seat mounting frame 17 is vertically attached to the rear side of the rear connecting rod 162. The form of using two groups of connecting rods in cross arrangement is abandoned, which can make the structure of the folded scooter more compact and more space-saving. When folding is completed, the second buckle plate 1507 is buckled with the second protruding column 1509, and the second buckle plate 1507 is buckled with the second protruding column 1509 under the action of the second spring 1511, so that the scooter is maintained in a folded state. When the scooter needs to be unfolded, the pressing rod 1503 is pressed, the second buckle plate 1507 is driven to rotate and separated from the second protruding column 1509 through the second rotating plate 1502, so that the scooter can be unfolded again

[0024] The left side of the front body frame 13 is provided with a first hinged plate 131, and the right side is provided with a second hinged plate 132. The lower end of the first hinged plate 131 is hinged with the front end of the rear body frame 14, and the lower end of the second hinged plate 132 is hinged with the front end of the rear body frame 14.

[0025] In the design, a first linkage rod 18 and a second linkage rod 19 are also included. The front end of the first linkage rod 18 is hinged with the head mounting frame 11 and corresponds to below the front body frame 13, and the rear end is hinged with the front end of the rear body frame 14 and corresponds to the rear side of the first hinged plate 131. The front end of the second linkage rod 19 is hinged with the head mounting frame 11 and corresponds to below the front body frame 13, and the rear end is hinged with the front end of the rear body frame 14 and corresponds to the rear side of the second hinged plate 132.

[0026] In the folding process, when the rear body frame 14 is flipped and folded relative to the front body frame 13, the front body frame 13 is perpendicular to the head mounting frame 11 under the driving of the first linkage rod 18 and the second linkage rod 19, that is, the front body frame 13 and the rear body frame 14 are automatically in the vertical state when the head mounting frame 11 is horizontal, so that the folding process is more convenient.

[0027] In the design, anti-rollover rear wheels 110 are also included, which are arranged in two groups and rotatably installed on the left and right sides behind the tail mounting frame 12. This can avoid the scooter from rolling backward in uphill or collision situations, improving its safety.

[0028] The seat mechanism 2 comprises a seat assembly 21, a width adjustment assembly 22, an armrest assembly 23 and a backrest assembly 24. The width adjustment assembly 22 comprises a fixed cylinder 221, an extension cylinder 222, a connecting column 223, a first locking screw 224 and a first knob 225. The fixed cylinder 221 is fixed to the rear side of the seat assembly 21. The extension cylinder 222 is arranged in the fixed cylinder 221. The rear side of the extension cylinder 222 is provided with a strip-shaped hole 2221. The connecting column 223 is fixed to the rear side of the fixed cylinder 221 and corresponds to the strip-shaped hole 2221. The first locking screw 224 is threadedly connected with the connecting column 223. The front end of the first locking screw 224 penetrates through the fixed cylinder 221 and the strip-shaped hole 2221 and is in contact with the inner wall of the front side of the extension cylinder 222. The first knob 225 is fixed to the rear side of the first locking screw 224. The extension cylinder 222, the connecting column 223, the first locking screw 224 and the first knob 225 are arranged in two groups and correspond to the left and right sides of the fixed cylinder 221. The armrest assembly 23 comprises a connecting cylinder 231, a lifting rod 232, a second locking screw 233, a second knob 234 and an armrest body 235. The inner side of the connecting cylinder 231 is fixed to the outer side of the extension cylinder 222. The lifting rod 232 is vertically arranged in the connecting cylinder 231. The lifting rod 232 is provided with a plurality of through holes 2321. The second locking screw 233 penetrates through the outer side of the connecting cylinder 231 and the through holes 2321. The inner side of the second locking screw 233 is threadedly connected with the inner side of the connecting cylinder 231. The second knob 234 is fixed to the outer side of the second locking screw 233. The armrest body 235 is fixed to the upper end of the lifting rod 232. The armrest assembly 23 is arranged in two groups and corresponds to the left and right sides of the width adjustment assembly 22. The backrest assembly 24 is rotatably installed above the fixed cylinder 221.

[0029] By adjusting the position of the telescopic cylinder 222 relative to the fixed cylinder 221, and then fixing the telescopic cylinder 222 on the fixed cylinder 221 through the connecting column 223, the first locking screw 224 and the first knob 225, specifically, by rotating the first locking screw 224, the first locking screw 224 is rotated in the connecting column 223 and runs forward, and by pressing the inner wall of the front end of the telescopic cylinder 222, the telescopic cylinder 222 is pressed on the fixed cylinder 221, thereby controlling the distance between the two groups of armrest assemblies 23, facilitating flexible adjustment of the distance between the armrest bodies 235 for users of different body types, so that the user can comfortably sit on the seat assembly 21. On the other hand, by adjusting the height of the lifting rod 232 relative to the seat assembly 21 through the through hole 2321 on the lifting rod 232, the height of the armrest body 235 can be controlled, so that the user can comfortably hold the armrest body 235 with both hands.

[0030] The lifting rod 232 can adjust the vertical position relative to the connecting cylinder 231, thereby adjusting the height of the armrest body 235, and can also make the armrest body 235 close to the seat assembly 21 in the folded state, saving storage space. The second locking screw 233 and the second knob 234 are used to fix the lifting rod 232 on the connecting cylinder 231.

[0031] The backrest assembly 24 includes a rotating bracket 241, a support plate 242, a mounting frame 243 and a back cushion 244. The rotating bracket 241 is fixed above the fixed cylinder 221, the front end of the support plate 242 is rotatably mounted on the rotating bracket 241, the rear end of the support plate 242 is provided with a downward protruding boss 2421, the front end of the boss 2421 is in contact with the rear end of the fixed cylinder 221, the rotating bracket 241 and the support plate 242 are each provided with two groups, the mounting frame is fixed at the rear end of the two groups of support plates 242, and the back cushion 244 is fixed at the upper end of the mounting frame 243.

[0032] In the scooter use state, the mounting frame and the back cushion 244 are vertically arranged, the boss 2421 is in contact with the fixed cylinder 221, thereby limiting the back cushion 244, so that the back cushion 244 does not loosen when the user leans against it, and when the seat is folded, the support plate 242 is rotated around the rotating bracket 241, so that the back cushion 244 is tightly attached to the seat assembly 21, saving storage space.

[0033] The above is not intended to limit the technical scope of the present application in any way, and any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A compact folding scooter comprising: The folding linkage mechanism, seat mechanism, head mechanism and rear wheel mechanism, the folding linkage mechanism includes head mounting frame, tail mounting frame, front body frame, rear body frame, locking device, seat linkage assembly and seat mounting frame, the front end of the front body frame is hinged with the head mounting frame, the front end of the rear body frame is hinged with the lower middle part of the front body frame, the front end of the tail mounting frame is hinged with the rear end of the rear body frame, the locking device includes first rotating plate, second rotating plate, pressing rod, first connecting plate, second connecting plate, first buckle plate, second buckle plate, first convex column, second convex column, first spring and second spring, the middle part of the first rotating plate is hinged with the left rear end of the front body frame, the middle part of the second rotating plate is hinged with the right rear end of the front body frame, the left and right sides of the pressing rod are respectively fixed on the upper end of the first rotating plate and the second rotating plate, the upper end of the first buckle plate is hinged with the front body frame and corresponds to the front side of the first rotating plate, the upper end of the second buckle plate is hinged with the front body frame and corresponds to the front side of the second rotating plate, the two ends of the first connecting plate are respectively hinged with the lower end of the first rotating plate and the lower end of the first buckle plate, the two ends of the second connecting plate are respectively hinged with the lower end of the second rotating plate and the lower end of the second buckle plate, the front end of the first spring is fixed on the front body frame, and the rear end is fixed in the middle part of the first buckle plate, the front end of the second spring is fixed on the front body frame, and the rear end is fixed in the middle part of the second buckle plate, the first convex column and the second convex column are both fixed on the rear body frame, in the unfolded state, the front end of the first buckle plate is buckled with the first convex column, in the folded state, the front end of the second buckle plate is buckled with the second convex column, the seat mounting frame is arranged above the rear body frame, the seat linkage assembly includes front connecting rod, rear connecting rod, reinforcing connecting rod and shock absorber, the upper end of the front connecting rod is hinged with the front end of the seat mounting frame, and the lower end is hinged with the middle part of the rear body frame, the upper end of the rear connecting rod is hinged with the rear end of the seat mounting frame, and the lower end is hinged with the rear end of the rear body frame, the upper end of the reinforcing connecting rod is hinged with the middle part of the front connecting rod, and the lower end is hinged with the front body frame and corresponds to the front side of the front connecting rod, the upper end of the shock absorber is hinged with the middle part of the rear connecting rod, and the lower end is hinged with the tail mounting frame, the front connecting rod, the rear connecting rod, the reinforcing connecting rod and the shock absorber are each provided with a group on the left and right sides of the rear body frame, the lower end of the two groups of front connecting rods is curved and corresponds to the inner side of the two groups of rear connecting rods, the seat mechanism is fixed above the seat mounting frame, the head mechanism is fixed on the head mounting frame, and the rear wheel mechanism is fixed on the tail mounting frame.

2. The compact folding scooter of claim 1, wherein: The left side of the front body frame is provided with a first hinged plate, and the right side is provided with a second hinged plate, the lower end of the first hinged plate is hinged with the front end of the rear body frame, and the lower end of the second hinged plate is hinged with the front end of the rear body frame.

3. The compact folding scooter of claim 2, wherein: Further comprising a first linkage rod and a second linkage rod, the first linkage rod is hingedly connected to the front end of the front body frame and corresponds to the lower side of the front body frame, and the rear end is hingedly connected to the front end of the rear body frame and corresponds to the rear side of the first hinged plate, the second linkage rod is hingedly connected to the front end of the front body frame and corresponds to the lower side of the front body frame, and the rear end is hingedly connected to the front end of the rear body frame and corresponds to the rear side of the second hinged plate.

4. The compact folding scooter of claim 1, wherein: Further comprising anti-rollover rear wheels, the anti-rollover rear wheels are rotatably installed on the left and right sides of the rear end of the rear body frame.

5. The compact folding scooter of claim 1, wherein: The seat mechanism comprises a seat assembly, a width adjustment assembly, an armrest assembly and a backrest assembly, the width adjustment assembly comprises a fixed cylinder, an extension cylinder, a connecting column, a first locking screw and a first knob, the fixed cylinder is fixed on the rear side of the seat assembly, one end of the extension cylinder is arranged in the fixed cylinder, the rear side of the extension cylinder is provided with a strip-shaped hole, the connecting column is fixed on the rear side of the fixed cylinder and corresponds to the strip-shaped hole, the first locking screw is threadedly connected with the connecting column, the front end of the first locking screw is arranged through the fixed cylinder and the strip-shaped hole and abuts against the inner wall of the front side of the extension cylinder, the first knob is fixed on the rear side of the first locking screw, the extension cylinder, the connecting column, the first locking screw and the first knob are arranged in two groups and correspond to the left and right sides of the fixed cylinder, the armrest assembly comprises a connecting cylinder, a lifting rod, a second locking screw, a second knob and an armrest body, the inner side of the connecting cylinder is fixed on the outer side of the extension cylinder, the lifting rod is vertically arranged in the connecting cylinder, a plurality of through holes are arranged on the lifting rod, the second locking screw is arranged through the outer side of the connecting cylinder and the through holes, the inner side of the second locking screw is threadedly connected with the inner side of the connecting cylinder, the second knob is fixed on the outer side of the second locking screw, and the armrest body is fixed on the upper end of the lifting rod, the armrest assembly is arranged in two groups and corresponds to the left and right sides of the width adjustment assembly, and the lower end of the backrest assembly is rotatably installed above the fixed cylinder.

6. The compact folding scooter of claim 5, wherein: The backrest assembly comprises a rotating support, a support plate, a mounting frame and a back cushion, the rotating support is fixed above the fixed cylinder, the front end of the support plate is rotatably installed on the rotating support, the rear end of the support plate is provided with a downwardly protruding boss, the front end of the boss abuts against the rear end of the fixed cylinder, the rotating support and the support plate are arranged in two groups, the lower end of the mounting frame is fixed on the rear ends of the two groups of support plates, and the back cushion is fixed on the upper end of the mounting frame.

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