Handrail mechanism and scooter support

Abstract

The armrest mechanism comprises an armrest, a movable piece and a telescopic adjusting piece, and the movable piece comprises a fixed rod, a first swing rod, a second swing rod and a movable connecting rod; the movable connecting rod is connected with the handrail, and the fixed rod is pivoted with the seat rod; the two ends of the first swing rod and the two ends of the second swing rod are in pivot joint with the fixed rod and the movable connecting rod respectively so that a quadrangle can be defined. The two ends of the telescopic adjusting piece are connected between the two adjacent edges of the quadrangle in a pivoted mode respectively so that the quadrangle can be driven to deform when the telescopic adjusting piece stretches out and draws back, and therefore the movable connecting rod can move up and down. The handrail of the scooter can be adjusted in a lifting mode, the scooter is suitable for different people, and the applicability and the riding comfort of the scooter are effectively improved.

Description

Technical Field

[0001] The utility model relates to an armrest mechanism, in particular to an armrest mechanism which can be raised and lowered and adjusted. Background Art

[0002] A mobility scooter is a means of transportation for people with limited mobility, and is mostly used by certain patients and the elderly. Due to the differences in the user groups, many parts of the mobility scooter can be adjusted. However, most of the existing armrests of mobility scooters are fixed, and their height cannot be adjusted according to different users. Users of different statures have different requirements for the height of the armrests. If the armrests cannot be adjusted according to their needs, it will affect the riding comfort and the applicability of the mobility scooter is low.

[0003] Therefore, it is necessary to design an armrest mechanism for a mobility scooter to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an armrest mechanism which can be raised and lowered to be suitable for different groups of people and improve the applicability and riding comfort of the mobility scooter.

[0005] Another object of the utility model is to provide a scooter support having an armrest mechanism that can be raised and lowered to be suitable for different groups of people, thereby improving the applicability and riding comfort of the scooter.

[0006] In order to achieve the above-mentioned purpose, the armrest mechanism provided by the utility model includes an armrest, a movable part and a telescopic adjustment part, the movable part includes a fixed rod, a first rocker rod, a second rocker rod and a movable connecting rod; the movable connecting rod is connected to the armrest, and the fixed rod is pivoted to the seat rod; the two ends of the first rocker rod and the second rocker rod are respectively pivoted to the fixed rod and the movable connecting rod to form a quadrilateral; the two ends of the telescopic adjustment part are respectively pivoted between two adjacent sides of the quadrilateral to drive the quadrilateral to deform during telescoping, thereby causing the movable connecting rod to move up and down.

[0007] Compared with the prior art, the utility model forms a quadrilateral by enclosing the fixed rod, the movable link, the first swing rod and the second swing rod, so that the quadrilateral can be deformed by using the telescopic adjustment member, so that the movable link can move upward or downward to achieve the purpose of driving the armrest to rise or fall. The structure is simple, and only the telescopic action of the telescopic adjustment member needs to be controlled, which is very convenient to control; thus, the user can freely adjust the height of the armrest according to his or her own body shape or needs, thereby improving the comfort of riding. Therefore, the armrest mechanism of the utility model can be suitable for different groups of people, and improves the applicability of the scooter.

[0008] Preferably, the telescopic adjustment member includes an adjustment nut and an adjustment screw, wherein the adjustment nut is rotatably arranged on one of the two adjacent sides of the quadrilateral; the adjustment screw is threadedly connected to the adjustment nut and pivotally connected to the other of the two adjacent sides of the quadrilateral. By cooperating with the adjustment nut and the adjustment screw, the adjustment screw can be driven to extend or retract by turning the adjustment nut to drive the armrest to rise and fall, and the adjustment nut and the adjustment screw can achieve precise adjustment, so that the armrest can achieve stepless adjustment, thereby being suitable for users of different body shapes and having a wide range of applicability.

[0009] Specifically, the adjusting nut has a pivot end, and the nut at the other end can rotate around its own central axis relative to the pivot end to drive the adjusting screw to extend and retract. In this way, the adjusting nut can be connected to one side of the quadrilateral and can be adjusted by rotation, and the structure is simple and reasonable.

[0010] Specifically, two ends of the telescopic adjustment member are respectively pivotally connected to two opposite corners of the quadrilateral.

[0011] Specifically, the quadrilateral is a parallelogram.

[0012] A support for a mobility scooter comprises a seat support, a base frame and a seat, wherein the seat support is arranged between the base frame and the seat, respectively, the seat seat is provided with a seat rod, and the seat rod is provided with the armrest mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the folding bracket of the mobility scooter according to the first embodiment of the present invention.

[0014] Figure 2 It is a front view of the folding bracket of the mobility scooter according to the first embodiment of the present invention.

[0015] Figure 3 It is another three-dimensional view of the folding bracket of the mobility scooter according to the first embodiment of the present invention.

[0016] Figure 4 The figure is a state diagram of the seat bracket of the folding bracket of the mobility scooter according to the first embodiment of the present invention when it is unfolded.

[0017] Figure 5 The figure is a motion state diagram of each rod member of the seat bracket of the folding bracket of the mobility scooter according to the first embodiment of the present invention when the seat bracket is folded.

[0018] Figure 6 1 is a diagram showing the seat post of the folding bracket of the mobility scooter in the first embodiment of the present invention when it is unfolded.

[0019] Figure 7 The figure is a diagram of the seat post of the folding bracket of the mobility scooter according to the first embodiment of the present invention in a folded state.

[0020] Figure 8 It is a structural diagram of the armrest mechanism of the folding bracket of the mobility scooter according to the first embodiment of the present invention.

[0021] Fig. 9 This is a state diagram of the armrest mechanism of the folding bracket of the mobility scooter in the first embodiment of the present invention after adjustment.

[0022] Fig.10 It is a three-dimensional diagram of the backrest mechanism of the folding bracket of the mobility scooter according to the first embodiment of the present invention.

[0023] Fig.11 It is a cross-sectional structural diagram of a backrest mechanism of a folding bracket of a mobility scooter according to the first embodiment of the present invention.

[0024] Fig.12 1 is a diagram showing the state of the backrest mechanism of the folding bracket of the mobility scooter after adjustment according to the first embodiment of the present invention.

[0025] Fig.13 It is a structural diagram of a seat of a folding bracket for a mobility scooter according to a first embodiment of the present invention.

[0026] Fig.14 This is a diagram of the seat of the folding bracket of the mobility scooter after adjustment according to the first embodiment of the present invention.

[0027] Fig.15 This is a diagram of the folding stand of the mobility scooter in the first embodiment of the present invention after being folded.

[0028] Fig.16 1 is a diagram showing the state of the seat bracket of the folding bracket of the mobility scooter according to the second embodiment of the present invention when it is unfolded.

[0029] Fig.17 1 is a diagram showing the state of the seat bracket of the folding bracket of the mobility scooter in the third embodiment of the present invention when it is unfolded. DETAILED DESCRIPTION

[0030] In order to explain the technical content, structural features and effects achieved by the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0031] like Figures 1 to 5As shown, the folding support 100 of the scooter of the present invention comprises a seat support 1, a base frame 2 and a seat 3, and wheels are respectively arranged at the front and rear ends of the base frame 2. The number of the seat supports 1 is two, and the two seat supports 1 are respectively arranged between the base frame 2 and the seat 3, and the two seat supports 1 are symmetrically arranged on both sides of the base frame 2 to ensure that the force of the entire folding support 100 of the scooter is balanced. The structure of one of the seat supports 1 is taken as an example below. The seat support 1 comprises a support rod 11, a push rod 12, a first connecting rod 13 and a second connecting rod 14. With the front end of the folding support 100 of the scooter as the front end and the rear end as the rear end, the support rod 11 is arranged obliquely from the front end of the base frame 2 along the rear upper side. The support rod 11 and the push rod 12 are arranged crosswise and the middle parts of the two are pivotally connected to each other, and the pivot point is o. The lower end of the support rod 11 is pivotally connected to the base frame 2 through a shaft member arranged on the lower side of the base frame 2, and the pivot point is a. One of the upper end of the support rod 11 and the upper end of the first connecting rod 13 is pivoted to one end of the seat 3; the other of the upper end of the support rod 11 and the upper end of the first connecting rod 13 is slidably connected to the other end of the seat 3. In this embodiment, the upper end of the support rod 11 is pivoted to the rear end of the seat 3, and the pivot point is b. The upper end of the first connecting rod 13 is slidably connected to the front end of the seat 3; one end of the second connecting rod 14 is pivoted to the lower end of the first connecting rod 13, and the pivot point is c, and the other end is pivoted between the two ends of the support rod 11, and the pivot point is d. The pivot point d is located between the pivot point o and the pivot point a. The upper end of the push rod 12 is pivoted between the two ends of the first connecting rod 13, and the pivot point is e. The lower end of the push rod 12 is connected to the base frame 2 in a relatively movable manner, so that the seat 3 can be driven to fold toward the base frame 2 or unfolded away from the base frame 2 through the linkage action of the support rod 11, the first connecting rod 13 and the second connecting rod 14 during movement.

[0032] Please see again Figure 1 , Figure 4 and Figure 5The seat support 1 also includes a slider 15, which is slidably arranged on the base frame 2, and the sliding direction is along the front and rear direction of the seat support 1. The lower end of the push rod 12 is pivotally connected to the slider 15, and the pivot point is f. By setting the slider 15, the push rod 12 is slidably connected with the base frame 2. Therefore, the driving device 4 can be used to drive the push rod 12 to move, so as to achieve the purpose of automatically controlling the folding or unfolding of the folding support 100 of the mobility scooter, thereby improving the convenience of use. A slide rail 21 is provided on the base frame 2, and the slider 15 is slidably arranged on the slide rail 21. By using the slider 15 to cooperate with the slide rail 21, it can be ensured that the slider 15 can be stably and firmly arranged on the base frame 2, thereby improving the reliability of unfolding or folding, and ensuring the safety of use.

[0033] For example Figure 1 As shown, the seat support 1 further includes a driving device 4, which is disposed on the base frame 2 and has an output end connected to the slider 15 to drive the slider 15 to slide along the front and rear directions of the seat support 1. In this embodiment, the driving device 4 is an electric push rod.

[0034] like Figure 4 As shown, a sliding groove 31a is provided on the side of the seat 3, and the sliding groove 31a extends along the front and rear directions of the seat 3. The upper end of the first connecting rod 13 is slidably disposed in the sliding groove 31a through a sliding pin 131. In this way, a variable quadrilateral can be formed between the upper section of the first connecting rod 13, the upper section of the support rod 11, the seat 3 and the upper section of the push rod 12, thereby achieving the purpose of unfolding or folding.

[0035] See also Figure 6 and Figure 7 The folding bracket 100 of the scooter also includes a seat rod 5, which is arranged on the seat 3. By arranging the seat rod 5, it is more convenient to arrange armrests and backrests, etc., and further improve the comfort of use of the folding bracket of the scooter. A mounting seat 31b is arranged on the upper side of the rear end of the seat 3, and the seat rod 5 is pivotally connected to the mounting seat 31b, and a locking mechanism 51 for locking or releasing the seat rod 5 is arranged between the mounting seat 31b and the seat rod 5. By arranging the locking mechanism 51 to lock or release the seat rod 5, the seat rod 5 can be folded or unfolded relative to the seat 3, thereby reducing the volume after folding and improving the convenience of use.

[0036] Please see again Figure 6 and Figure 7Specifically, the locking mechanism 51 includes a locking rod 511 and an elastic reset member 512. The mounting seat 31b is provided with a sliding groove 31a and a limiting rod 513. The end of the seat rod 5 close to the mounting seat 31b is clamped between the limiting rod 513 and the locking rod 511. The sliding groove 31a is arc-shaped. The locking rod 511 is slidably arranged in the sliding groove 31a. The elastic reset member 512 is arranged between the locking rod 511 and the mounting seat 31b and provides an elastic force for the locking rod 511 to lock the seat rod 5. Specifically, by manually pushing the locking rod 511 to slide to the end of the sliding groove 31a away from the seat rod 5, the locking rod 511 releases the seat rod 5; by the elastic force of the elastic reset member 512, the locking rod 511 slides to the end of the sliding groove 31a close to the seat rod 5, so that the locking rod 511 locks the seat rod 5. By utilizing the limiting rod 513, the locking rod 511 and the elastic reset member 512, the seat rod 5 can be locked or unlocked, which has a simple structure and is easy to operate.

[0037] Please see again Figure 6 and Figure 7The folding bracket 100 for a mobility scooter further includes an armrest mechanism 6, which is arranged on the seat rod 5. Moreover, the armrest mechanism 6 can be rotated and folded or rotated and opened relative to the seat rod 5. The armrest mechanism 6 can provide a position for the user's hands to be placed, thereby improving the comfort of use. The folding bracket 100 for a mobility scooter further includes a linkage mechanism 52, which is arranged between the seat rod 5 and the armrest mechanism 6 to drive the armrest mechanism 6 to rotate when the seat rod 5 moves closer to the seat 3. The linkage mechanism 52 includes a connecting rod 521 and a limiting member 522. A pivoting portion 31c extends from the upper side of the rear end of the seat 3. One end of the connecting rod 521 is pivotally connected to the pivoting portion 31c, and the other end is slidably connected to one end of the limiting member 522. Specifically, the connecting rod 521 is provided with a sliding groove 521a, and one end of the limiting member 522 is slidably connected to the sliding groove 521a through a sliding shaft 522a. The other end of the limiter 522 is pivotally connected to the seat rod 5 and the pivot shaft 621a is fixedly connected to the armrest mechanism 6. When the armrest mechanism 6 is opened relative to the seat 3, the slide shaft 522a is located at the uppermost end of the slide groove 521a, and the slide groove 521a limits the slide shaft 522a from sliding upward, so that the armrest of the armrest mechanism 6 is at a constant angle relative to the horizontal plane. By utilizing the seat rod 5, the connecting rod 521, the limiter 522 and the pivoting portion 31c, a deformable parallelogram can be formed, so that when the seat rod 5 is rotated, folded or opened relative to the seat 3, the armrest mechanism 6 can be driven to rotate, fold or open through the linkage of the connecting rod 521 and the limiter 522, thereby simplifying the folding steps and improving the convenience of use. In addition, by providing the slide groove 521a, when the user gets on or off the vehicle, the armrest mechanism 3 can be driven to rotate upward around the pivot shaft 621a. At this time, the slide shaft 522a can slide from top to bottom along the slide groove 521a, and will not interfere with the connecting rod 521.

[0038] See also Figure 8 and Fig. 9Specifically, the armrest mechanism 6 includes an armrest 61, a movable member 62 and a telescopic adjustment member 63. The armrest 61 is a long rod-shaped structure. The movable member 62 includes a fixed rod 621, a first swing rod 622, a second swing rod 623 and a movable link 624; the movable link 624 is fixedly connected to the armrest 61, the fixed rod 621 is pivoted to the seat rod 5 through a pivot shaft 621a, and is coaxially fixedly connected to the pivot shaft of the limiter 522; the two ends of the first swing rod 622 and the second swing rod 623 are respectively pivoted to the fixed rod 621 and the movable link 624 to surround and form a quadrilateral; in this embodiment, the first swing rod 622, the second swing rod 623, the fixed rod 621 and the movable link 624 surround and form a parallelogram. The two ends of the telescopic adjustment member 63 are respectively pivoted to the two diagonal corners of the parallelogram, so as to drive the movable link 624 to move upward when extended or to move downward when shortened. By making the fixed rod 621, the movable link 624, the first swing rod 622 and the second swing rod 623 form a parallelogram, the telescopic adjustment member 63 can be used to drive the parallelogram to deform, so that the movable connection can move upward or downward to achieve the purpose of driving the armrest 61 to rise or fall. The structure is simple, and only the telescopic action of the telescopic adjustment member 63 needs to be controlled, which is very convenient to control.

[0039] For example Figure 8 and Fig. 9 As shown, specifically, the telescopic adjustment member 63 includes an adjustment nut 631 and an adjustment screw 632, wherein the adjustment nut 631 is rotatably arranged at one angle of the parallelogram; the adjustment screw 632 is threadedly connected to the adjustment nut 631 and pivoted to the other angle of the parallelogram. Specifically, the adjustment nut 631 has a pivot end 631a, and the nut at the other end can rotate around its own central axis relative to the pivot end 631a to drive the adjustment screw 632 to extend and retract. By cooperating with the adjustment nut 631 and the adjustment screw 632, the adjustment screw 632 can be driven to extend or retract by twisting the adjustment nut 631 to rotate, thereby driving the armrest 61 to rise and fall, and the adjustment nut 631 and the adjustment screw 632 can achieve precise adjustment, so that the armrest 61 can achieve stepless adjustment, thereby being suitable for users of different body shapes and having a wide range of applicability.

[0040] See also Figures 10 to 12, the folding bracket 100 for the mobility scooter further comprises a backrest mechanism 7, and the backrest mechanism 7 is arranged on the seat rod 5. The backrest mechanism 7 is arranged in an adjustable manner. Specifically, the backrest mechanism 7 comprises a backrest 71, a backrest connecting rod 72 and an angle adjustment component 73, the backrest 71 is pivotally connected to the seat rod 5, and the angle adjustment component 73 is arranged on the seat rod 5. Specifically, the backrest mechanism 7 in this embodiment is arranged between the two seat rods 5, a connecting seat 53 is connected between the two seat rods 5, and the angle adjustment component 73 is arranged on the connecting seat 53. One end of the backrest connecting rod 72 is pivotally connected to the backrest 71, and the output end of the angle adjustment component 73 is pivotally connected to the other end of the backrest connecting rod 72, so as to drive the backrest 71 to swing through the backrest connecting rod 72. By setting the backrest 71, the backrest connecting rod 72 and the angle adjustment component 73, and making the three form a deformable triangular structure, it is only necessary to control the angle adjustment component 73 to achieve the purpose of driving the backrest 71 to swing, and the control is very simple and convenient. Specifically, the backrest 71 has a backrest support 74, one end of the backrest support 74 is pivoted to the seat rod 5, and the pivot point is g, and the other end is pivoted to the backrest connecting rod 72, and the pivot point is h. By setting the backrest support 74, the pivot point g can be far away from the pivot point h, so that the torque of the backrest connecting rod 72 on the backrest 71 can be increased, making the adjustment of the backrest 71 easier and more convenient.

[0041] Please see again Figures 10 to 12 Specifically, the angle adjustment assembly 73 includes a screw rod 731 and a nut 732. The screw rod 731 is rotatably arranged on the connection seat 53 of the seat rod 5. The connection seat 53 has a hollow and open middle cavity 531. The nut 732 is located in the middle cavity 531 and is threadedly connected to the screw rod 731. The middle cavity 531 can guide the nut 732 and limit the movement stroke of the nut 732. In addition, the nut 732 is pivotally connected to the other end of the backrest connecting rod 72. An operating knob 733 is provided at one end of the screw rod 731. Turning the operating knob 733 can drive the screw rod 731 to rotate around its own central axis. By using the cooperation between the nut 732 and the screw rod 731, the nut 732 can be driven to move forward and backward by turning the screw rod 731 to rotate, thereby achieving the purpose of driving the backrest connecting rod 72. Furthermore, the nut 732 and the screw rod 731 cooperate to achieve precise adjustment, and the backrest 71 can be adjusted steplessly, so that it is suitable for users of different body shapes, different body types or different sitting postures, and has a wide range of applicability.

[0042] like Fig.13 and Fig.14As shown, the seat 3 includes a seat body 31, a seat cushion 32 and a seat cushion position adjustment mechanism 33. The seat cushion 32 is arranged on the surface of the seat body 31 and is in a plate-like structure. The seat cushion position adjustment mechanism 33 is arranged between the seat body 31 and the seat cushion 32 to adjust the position of the seat cushion 32 relative to the seat body 31. By setting the seat cushion position adjustment mechanism 33, the position of the seat cushion 32 is adjustable, so that the seat cushion 32 can support the thigh part of the user and improve the riding comfort; and the seat 3 can adapt to users of different body shapes or different needs, and has a wide applicability.

[0043] For example Fig.13 and Fig.14 As shown, specifically, the seat cushion position adjustment mechanism 33 is symmetrically arranged on both sides of the seat body 31, so that the force on the seat body 31 is balanced. The seat cushion position adjustment mechanism 33 includes a seat cushion connecting rod 331 and a sliding shaft 332. In order to balance the force on the seat cushion 32, the two seat cushion connecting rods 331 are symmetrically arranged on opposite sides of the seat body 31. One sliding shaft 332 is arranged at the rear end of the seat cushion 32, and its two ends are respectively slidably arranged on opposite sides of the seat body 31. One end of the seat cushion connecting rod 331 is pivotally connected to the front end of the seat body 31, and the other end is pivotally connected to the front end of the seat cushion 32, so as to drive the seat cushion 32 to swing to a certain angle relative to the seat body 31 and move forward and backward when swinging. By providing the cushion connecting rod 331 and the sliding shaft 332 and making the sliding shaft 332 slide on the seat body 31 , a deformable triangle can be formed among the cushion connecting rod 331 , the seat body 31 and the cushion 32 , thereby realizing the adjustment of the position of the cushion 32 , and the adjustment is simple and convenient.

[0044] Please see again Fig.13 and Fig.14The seat cushion 32 is provided with a front support 321 and a rear support 322 on opposite sides, respectively. The seat cushion connecting rod 331 on the same side is pivotally connected to the front support 321 on the same side, and the sliding shaft 332 is arranged between the two rear supports 322. By arranging the front support 321 and the rear support 322, the seat cushion 32 is more conveniently connected to the seat cushion connecting rod 331 and the sliding shaft 332, and interference between the seat cushion 32 and the seat body 31 can be avoided during adjustment, making the structure more compact and reasonable. The seat body 31 is provided with an elongated groove 31d on opposite sides, respectively, and the elongated groove 31d extends along the front and rear directions of the seat body 31, and the two ends of the sliding shaft 332 are slidably arranged in the two elongated grooves 31d. By providing the elongated groove 31d, on the one hand, the sliding shaft 332 can be connected with the seat body 31 so that the position of the seat cushion 32 can be adjusted; on the other hand, the sliding shaft 332 can be guided and limited at the front and rear ends to ensure that the seat cushion 32 can move within a suitable range.

[0045] Please see again Fig.13 and Fig.14 , the elongated slot 31d is provided with a plurality of latching positions 31e, and the sliding shaft 332 is selectively latched in any of the latching positions 31e. By providing the latching positions 31e, the seat cushion 32 can be positioned at different positions, so that the seat cushion 32 has different adjustment gears, which improves the convenience of use and can adapt to users of different statures or different body shapes or different needs, and has wide applicability. Specifically, the latching position 31e is a latching recess provided on the elongated slot 31d. By using the latching recess to cooperate with the sliding shaft 332, the positioning of the seat cushion 32 can be made simpler and the operation more convenient.

[0046] Based on the above and combined with the above drawings and Fig.15 The working principle of the folding bracket 100 of the utility model for a scooter is described in detail as follows:

[0047] When the angle of the backrest 71 needs to be adjusted, first, the operating knob 733 is turned to drive the screw rod 731 to rotate, and the screw rod 731 drives the nut 732 to move away from the backrest 71. The nut 732 pulls the backrest connecting rod 72, and the backrest connecting rod 72 drives the backrest support 74 to rotate around the pivot point g, so that the lower end of the backrest 71 swings forward and upward by a certain angle, thereby achieving the purpose of adjusting the angle of the backrest 71. At the same time, when the operating knob 733 is operated in the reverse direction, the lower end of the backrest 71 can be swung to a certain angle and reset.

[0048] When the position of the seat cushion 32 needs to be adjusted, first, the seat cushion 32 is directly pushed. Under the action of the thrust, the seat cushion connecting rod 331 rotates toward the upper front of the seat body 31. At the same time, the sliding shaft 332 slides forward from the rear end of the elongated slot 31d, so that the seat cushion 32 moves forward and upward. At this time, the position of the seat cushion 32 relative to the seat body 31 changes. When the sliding shaft 332 slides to one of the positions 31e of the elongated slot 31d, the sliding shaft 332 is positioned on the position 31e. At this time, the position of the seat cushion 32 relative to the seat body 31 is fixed, and the position of the seat cushion 32 is adjusted. At the same time, the position of the seat cushion 32 can be adjusted again by simply moving the sliding shaft 332 to another position 31e.

[0049] When the folding support 100 of the mobility scooter needs to be folded, the backrest 71 and the seat cushion 32 are first reset. Then, the locking rod 511 is pushed from the upper end of the sliding groove 31a to the lower end, so that the lower end of the seat rod 5 is unlocked. At this time, the seat rod 5 is pushed so that the seat rod 5 moves toward the direction of the seat 3 and folds. During the rotation of the seat rod 5, the connecting rod 521 drives the limiting member 522 to rotate, and the limiting member 522 drives the armrest mechanism 6 to rotate to a position in the same direction as the extension direction of the seat rod 5, so that the armrest mechanism 6 is folded into a state roughly parallel to the seat rod 5. Afterwards, the electric push rod 12 is started, and the electric push drives the slider 15 to move along the base frame 2 to the rear of the folding support 100 of the mobility scooter, and the slider 15 drives the lower end of the push rod 12 to rotate. The push rod 12 drives the upper end of the support rod 11 and the upper end of the push rod 12 is folded toward the direction close to the base frame 2. At the same time, the upper end of the push rod 12 drives the first connecting rod 13 to move, and the sliding pin 131 at the upper end of the first connecting rod 13 slides forward along the direction of the sliding groove 31a. At this time, the seat 3 follows the folding of the support rod 11 and the first connecting rod 13 and descends. In addition, the lower end of the first connecting rod 13 swings and drives the second connecting rod 14 to swing and fold. Finally, the support rod 11, the push rod 12, the first connecting rod 13, the second connecting rod 14 and the seat 3 move toward the base frame 2 and are completely folded. At the same time, when it is necessary to unfold the folding support 100 of the scooter, it is only necessary to make the electric push rod 12 move in the opposite direction, thereby driving the slider 15 to move along the base frame 2 toward the front of the folding support 100 of the scooter, so that the seat support 1 and the seat 3 can be unfolded away from the base frame 2. Finally, the seat post 5 is flipped upward and opened, and the armrest mechanism 6 is opened at the same time, and the positions of the backrest 71 and the seat cushion 32 are adjusted.

[0050] Compared with the prior art, the present invention arranges the support rod 11 and the push rod 12 between the base frame 2 and the seat 3, and the support rod 11 and the push rod 12 are cross-pivoted, and a first connecting rod 13 is arranged, so that the upper end of the first connecting rod 13 is slidably connected to the seat 3, so that the upper section of the support rod 11, the seat 3, the upper section of the first connecting rod 13 and the upper section of the push rod 12 form a deformable quadrilateral. Therefore, under the swing of the push rod 12, the seat 3 can be folded or unfolded by moving closer to the base frame 2 or away from the base frame 2 through the deformation of the quadrilateral. Furthermore, by providing a second connecting rod 14, one end of the second connecting rod 14 is pivotally connected to the lower end of the first connection, and the other end is pivotally connected to the support rod 11, so that the lower section of the support rod 11, the lower section of the first connecting rod 13, the second connecting rod 14 and the upper section of the push rod 12 form a parallelogram, which can withstand the gravity from the upper section of the first connecting rod 13, and then distribute the force to the second connecting rod 14 and the push rod 12. Therefore, in this way, a part of the force can be shared for the push rod 12, thereby greatly reducing the force of the push rod 12, enhancing the load capacity of the whole vehicle, and extending the service life of the vehicle.

[0051] Also, see Fig.16 The folding bracket of the scooter of the second embodiment is a second embodiment extended from the first embodiment, and the structure is basically the same as that of the first embodiment, except that the upper end of the support rod 11 is slidably disposed at the front end of the seat 3 through the sliding groove 31a, and the upper end of the first connecting rod 13 is pivotally connected to the rear end of the seat 3. In this way, the folding bracket of the scooter can also be folded or unfolded, and its effect is the same as that of the first embodiment, and will not be described again.

[0052] See also Fig.17, Embodiment 3 of the folding support for a scooter of the utility model, the structure of this embodiment is basically the same as that of the above embodiments, except that. The connection mode between the lower end of the support rod and the base frame and the connection mode between the lower end of the push rod and the base frame. Specifically, the folding support 100' for a scooter includes a seat support 1', a base frame 2' and a seat 3', wherein the seat support 1' is arranged on the base frame 2' and between the seat 3'; the seat support 1' includes a support rod 11', a push rod 12', a first connecting rod 13' and a second connecting rod 14', wherein the support rod 11' is pivotally connected to the push rod 12' in a cross manner, and the lower end of the support rod 11' is slidably connected to the base frame 2'. Specifically, the lower end of the support rod 11' is pivotally connected to the slider 15', and the slider 15' is slidably arranged on the base frame 2' along the front and rear directions of the folding support 100' for a scooter. One of the upper end of the support rod 11' and the upper end of the first connecting rod 13' is pivoted to one end of the seat 3'. The other of the upper end of the support rod 11' and the upper end of the first connecting rod 13' is slidably connected to the seat 3'. In this embodiment, the upper end of the support rod 11' is pivoted to one end of the seat 3'. The upper end of the first connecting rod 13' is slidably connected to the seat 3' through a sliding groove 31a'. One end of the second connecting rod 14' is pivoted to the lower end of the first connecting rod 13', and the other end is pivoted between the two ends of the support rod 11'. The upper end of the push rod 12' is pivoted between the two ends of the first connecting rod 13', and the lower end of the push rod 12' is pivoted to the base frame 2'. In this embodiment, by relatively slidingly connecting the lower end of the support rod 11' to the base frame 2' and pivotally connecting the lower end of the push rod 12' to the base frame 2', the folding bracket 100' of the mobility scooter can also be folded or unfolded, and its effects are the same as those of the above embodiments, which will not be described again.

[0053] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. An armrest mechanism, arranged on the seat post of a mobility scooter, characterized in that: It includes an armrest, a movable part and a telescopic adjustment part, the movable part includes a fixed rod, a first swing rod, a second swing rod and a movable link; the movable link is connected to the armrest, and the fixed rod is pivoted to the seat rod; the two ends of the first swing rod and the second swing rod are respectively pivoted to the fixed rod and the movable link to form a quadrilateral; the two ends of the telescopic adjustment part are respectively pivoted between two adjacent sides of the quadrilateral to drive the quadrilateral to deform during telescoping, thereby causing the movable link to move up and down.

2. The armrest mechanism according to claim 1, characterized in that: The telescopic adjustment member includes an adjustment nut and an adjustment screw. The adjustment nut is rotatably arranged on one of the two adjacent sides of the quadrilateral. The adjustment screw is threadedly connected to the adjustment nut and pivotally connected to the other of the two adjacent sides of the quadrilateral.

3. The armrest mechanism according to claim 2, characterized in that: The adjusting nut has a pivot end, and the nut at the other end can rotate around its own central axis relative to the pivot end to drive the adjusting screw to extend and retract.

4. The armrest mechanism according to claim 1, characterized in that: Two ends of the telescopic adjustment member are respectively pivotally connected to two diagonal corners of the quadrilateral.

5. The armrest mechanism according to any one of claims 1 to 4, characterized in that: The quadrilateral is a parallelogram.

6. A scooter support, characterized in that: It comprises a seat bracket, a base frame and a seat, wherein the seat bracket is respectively arranged between the base frame and the seat, the seat is provided with a seat rod, and the seat rod is provided with the armrest mechanism according to any one of claims 1 to 5.

Images