Folding structure and electric scooter

Abstract

The utility model belongs to the technical field of scooters, and particularly relates to a folding structure and an electric scooter. According to the technical scheme, the folding structure is used for folding a seat of the electric scooter, and comprises a lower base, a front base and a rear base, a front link; a rear link; an upper base; the locking assembly comprises a front limiting piece capable of moving up and down and a reset power source acting on the front limiting piece, and the front limiting piece is located in front of the front connecting rod; a rear stopper; wherein the lower base, the front connecting rod, the upper base and the rear connecting rod are rotationally connected in sequence to form a four-connecting-rod mechanism; when the front limiting piece is located at the locking position, the front limiting piece prevents the four-connecting-rod mechanism from moving forwards, and the rear limiting piece prevents the four-connecting-rod mechanism from moving backwards. When the front limiting piece moves to the unlocking position by overcoming the effect of the reset power source, the lower base, the front connecting rod, the upper base and the rear connecting rod can be folded forwards to be in a folded state. The folding structure disclosed by the utility model has the beneficial effect that folding is realized by a better structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of scooters, and in particular relates to a folding structure and an electric scooter. Background Art

[0002] Electric scooters are modified on the basis of traditional manual wheelchairs and equipped with high-performance power drive devices, intelligent control devices, batteries and other components, which can complete multiple functions such as forward, backward, and steering. In order to facilitate transportation and storage, electric scooters are usually designed to be foldable. One of them is the folding of the seat (switching the seat from a higher position when driving to a lower position when storing). However, the seat folding structure of existing electric scooters has unreasonable features such as complex structure and cumbersome operation, and there is room for improvement. Summary of the invention

[0003] The utility model provides a folding structure to realize the folding of the seat of the electric scooter. The utility model also provides an electric scooter adopting the folding structure.

[0004] To achieve the above object, the utility model adopts the following technical solution: a folding structure for folding the seat of an electric scooter, the folding structure comprising:

[0005] Lower base;

[0006] Front connecting rod;

[0007] Rear connecting rod;

[0008] Upper base;

[0009] A locking assembly, comprising a front stopper movable up and down and a reset power source acting on the front stopper, the front stopper being located in front of the front connecting rod, and the front stopper switching between a locking position and an unlocking position;

[0010] A rear stopper, located behind the front link;

[0011] Among them, the lower base, the front connecting rod, the upper base and the rear connecting rod are connected by rotation in sequence to form a four-bar linkage;

[0012] The upper base is provided with a movable groove for the front limiter to move;

[0013] When the front limiter is located in the locked position under the action of the reset power source, the front limiter prevents the four-bar linkage from moving forward, and the rear limiter prevents the four-bar linkage from moving backward, and the lower base, the front connecting rod, the upper base, and the rear connecting rod are in a non-rotatable unfolded state;

[0014] When the effect of the reset power source is overcome to move the front limiter to the unlocking position, the lower base, the front connecting rod, the upper base and the rear connecting rod can move forward to a folded state.

[0015] As an improvement, the locking assembly further comprises a swing frame rotatably connected to the upper base, and the front limit piece is fixed on the swing frame.

[0016] As an improvement, the folding structure includes two groups of four-bar linkage mechanisms distributed on the left and right, the locking assembly includes two groups of swing frames distributed on the left and right and a reset power source, and the locking assembly also includes an operating rod connecting the two swing frames.

[0017] As an improvement, the rear link is located between the front link and the rear link; in the unfolded state, the front link and the rear link are tilted forward; in the unfolded state, the front link and the rear link are parallel.

[0018] As an improvement, the resetting power source includes a tension spring, and the upper end of the tension spring is installed on the front limit member.

[0019] As an improvement, in the folded state, the front limiter abuts against the front connecting rod under the action of the resetting power source.

[0020] As an improvement, the rotational connection between the lower base, the front connecting rod, the upper base and the rear connecting rod is achieved through a rotating assembly, which includes a pair of threaded hooded threaded parts and a shaft sleeve sleeved outside the hooded threaded parts. The lower base and the upper base have two parallel walls, and the front connecting rod and the rear connecting rod are located between the two parallel walls.

[0021] As an improvement, the rotating assembly further comprises a pair of L-shaped sleeves, the shaft sleeve is located between the two L-shaped sleeves, and the L-shaped sleeve is located between the two parallel walls and inserted into the connecting holes of the parallel walls.

[0022] As an improvement, the swing frame includes two parallel swing arms.

[0023] The electric scooter comprises a chassis, a seat and a folding structure. The folding structure is the aforementioned folding structure, the lower base is fixedly connected to the chassis, and the upper base is fixedly connected to the seat.

[0024] The beneficial effects of the folding structure of the utility model are as follows: it includes a lower base, a front connecting rod, an upper base, and a rear connecting rod, which are rotatably connected in sequence to form a four-link mechanism, and also includes a locking assembly and a rear limit member, the locking assembly includes a front limiting member that can move up and down and a reset power source acting on the front limiting member, when the front limiting member is in the locked position under the action of the reset power source, the front limiting member prevents the four-link mechanism from moving forward, and the rear limiting member prevents the four-link mechanism from moving backward, and the front connecting rod, the upper base, and the rear connecting rod are in a non-rotatable unfolded state, and the reset power source also enables the positions of the lower base, the front connecting rod, the upper base, and the rear connecting rod to be reliably kept fixed, when the front limiting member is moved from the locked position to the unlocked position under the action of an external force to overcome the action of the reset power source, the front connecting rod, the upper base, and the rear connecting rod can move, and can be folded at this time; the front limiting member moves up and down, and the operation is relatively easy.

[0025] The electric scooter of the utility model adopts the folding structure of the utility model and has all the beneficial effects of the folding structure of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an electric scooter according to the first embodiment of the utility model.

[0027] Figure 2 It is a structural schematic diagram of the electric scooter according to the first embodiment of the utility model (after hiding some components).

[0028] Figure 3 It is a structural schematic diagram of the folding structure of the electric scooter according to the first embodiment of the utility model.

[0029] Figure 4 It is a structural schematic diagram of the lower base of the electric scooter according to the first embodiment of the utility model.

[0030] Figure 5 It is a structural schematic diagram of the front connecting rod of the electric scooter in the first embodiment of the utility model.

[0031] Figure 6 It is a structural schematic diagram of the rear connecting rod of the electric scooter according to the first embodiment of the utility model.

[0032] Figure 7 It is a structural schematic diagram of the upper base of the electric scooter according to the first embodiment of the utility model.

[0033] Figure 8 It is a structural schematic diagram of a locking assembly of an electric scooter according to a first embodiment of the utility model.

[0034] Fig. 9 It is a structural schematic diagram of a rotating assembly of an electric scooter according to a first embodiment of the utility model.

[0035] In the figure, 1, lower base;

[0036] 2. front connecting rod; 21. abutment portion;

[0037] 3. Rear connecting rod;

[0038] 4. Upper base; 41. Rotation connection hole; 42. Limit installation hole; 43. Movable slot; 44. Rear limit hole;

[0039] 5. Locking assembly; 51. Front stopper; 52. Reset power source; 53. Swing frame; 54. Operating lever;

[0040] 6. Rear limiter;

[0041] 7. Crossbar;

[0042] 8. Rotating assembly; 81. Cap screw member; 82. Bushing; 83. L-shaped sleeve;

[0043] D. Chassis;

[0044] Z. Seat. DETAILED DESCRIPTION

[0045] The technical solutions of the embodiments of the present invention are explained and described below, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0046] See also Figures 1 to 9 , a folding structure for folding a seat Z of an electric scooter, the folding structure comprising:

[0047] Lower base 1;

[0048] Front link 2;

[0049] Rear link 3;

[0050] Upper base 4;

[0051] The locking assembly 5 includes a front stopper 51 that moves up and down and a reset power source 52 that acts on the front stopper 51. The front stopper 51 is located in front of the front link 2. The front stopper 51 switches between a locking position and an unlocking position.

[0052] A rear stopper 6, located behind the front link 2;

[0053] Among them, the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are connected by rotation in sequence to form a four-bar linkage;

[0054] The upper base 4 is provided with a movable groove 43 for the front limiter 51 to move;

[0055] When the front stopper 51 is in the locked position under the action of the reset power source 52, the front stopper 51 prevents the four-bar linkage from moving forward, and the rear stopper 6 prevents the four-bar linkage from moving backward, and the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are in a non-rotatable unfolded state;

[0056] When the effect of the reset power source 52 is overcome and the front limit member 51 moves upward to the unlocked position, the lower base 1, the front connecting rod 2, the upper base 4 and the rear connecting rod 3 can move forward to a folded state.

[0057] In this embodiment, the folding structure includes two groups of four-bar linkage mechanisms distributed on the left and right.

[0058] In this embodiment, the two lower bases 1 are mounted on the chassis D, and the two upper bases 4 are directly fixedly connected via cross bars 7 , and there are two or more cross bars 7 .

[0059] See also Figure 3 In this embodiment, the two lower bases 11 are identical, the two front connecting rods 22 are identical, the two rear connecting rods 33 are identical, and the two upper bases 44 are symmetrical. The rear connecting rod 3 is located between the front connecting rod 2 and the rear connecting rod 3. In the unfolded state, the front connecting rod 2 and the rear connecting rod 3 are tilted forward; in the unfolded state, the front connecting rod 2 and the rear connecting rod 3 are parallel.

[0060] See also Figure 4 In this embodiment, two rotation connection holes 41 are provided on the lower base 1 for rotationally connecting with the front connecting rod 2 and the rear connecting rod 3 respectively.

[0061] See also Figure 5 In this embodiment, two rotation connection holes 41 are provided on the front connecting rod 2 for rotationally connecting with the lower base 1 and the upper base 4 respectively.

[0062] See also Figure 6 In this embodiment, two rotation connection holes 41 are provided on the rear connecting rod 3 for rotationally connecting with the lower base 1 and the upper base 4 respectively.

[0063] See also Figure 7 In this embodiment, two rotation connection holes 41 are provided on the upper base 4 for rotationally connecting with the front connecting rod 2 and the rear connecting rod 3 respectively. The upper base 4 also has a rotation connection hole 41 for the swing frame 53 to swing. The movable groove 43 on the upper base 4 is an arc groove, and the two ends of the movable groove 43 are semicircular. The upper base 4 also has a rear stopper hole 44 for installing the rear stopper 6, and the two rear stoppers 6 are fixedly connected to the upper base 4.

[0064] See also Figure 8 In this embodiment, the locking assembly 5 includes a front limiter 51, a reset power source 52, and a swing frame 53 rotatably connected to the upper base 4, and the front limiter 51 is fixed to the swing frame 53. There are two sets of swing frames 53 and reset power sources 52. The locking assembly 5 also includes an operating rod 54 connecting the two swing frames 53. There is one front limiter 51 and one operating rod 54. Screws are provided at both ends of the front limiter 51 to prevent the front limiter 51 from falling out. The swing frame 53 is also connected to the upper base 4 through a rotating assembly 8.

[0065] In this embodiment, the reset power source 52 includes a tension spring, the upper end of which is mounted on the front limit member 51, and the lower end is mounted on the rotating assembly 8 connecting the rear connecting rod 3 and the upper base 4, and the upper and lower ends of the tension spring are not fixed.

[0066] In this embodiment, in the folded state, the front limiter 51 abuts against the front link 2 under the action of the restoring power source 52 , and an abutting portion 21 is formed at the upper end of the front link 2 .

[0067] In this embodiment, the swing frame 53 includes two parallel swing arms, the upper ends of the two swing arms are rotatably connected to the upper base 4, a front limiter 51 is arranged in the middle, and an operating rod 54 is arranged at the lower end.

[0068] Participate Fig. 9 In this embodiment, the rotation connection between the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 is realized by a rotating assembly 8, and the rotating assembly 8 includes a pair of threaded cap screws 81 and a sleeve 82 sleeved outside the cap screws 81. The lower base 1 and the upper base 4 have two parallel walls, and the front connecting rod 2 and the rear connecting rod 3 are located between the two parallel walls. With this rotating assembly 8, the rotation is smooth. The lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are provided with mounting holes that match the cap screws 81.

[0069] In this embodiment, the rotating assembly 8 further includes a pair of L-shaped sleeves 83 . The shaft sleeve 82 is located between the two L-shaped sleeves 83 . The L-shaped sleeve 83 is located between the two parallel walls and inserted into the connecting holes of the parallel walls.

[0070] The working principle of the electric scooter of the first embodiment of the present utility model is as follows: in the driving state, i.e. the unfolded state, the front limit member 51 is located at the lowermost end of the movable groove 43 under the action of a restoring power source 52 such as a tension spring (at this time, the front limit member 51 is in contact with the front connecting rod 2), and the front connecting rod 2 is restricted by the front limit member 51 and cannot rotate forward. At the same time, the rear limit member 6 is also in contact with the front connecting rod 2, and the front connecting rod 2 is restricted by the rear limit member 6 and cannot rotate backward, so that the positions of the lower base 1, the front connecting rod 2, the rear connecting rod 3, and the upper base 4 are fixed to each other. Due to the setting of the tension spring, the tension spring 51 is in contact with the front connecting rod 2 when no external force is applied. The spring makes the front limit member 51 reliably positioned in the movable groove 43 of the upper base 4. At the same time, the front link 2 tilts forward in the driving state. When the user sits on the seat Z, it will also generate a force on the front limit member 51 to further prevent the front limit member 51 from moving. The up and down bumps during driving will not cause the front limit member 51 to move. When it is necessary to fold and store, operate the operating rod 54 to rotate the operating rod 54 upward to make the front limit member 51 move in the movable groove 43 in the upper base 4, and rotate from the lower end of the movable groove 43 to the upper end. When the front limit member 51 is located at the upper end of the movable groove 43, the front limit member 5 1 is higher than the front link 2, the front stopper 51 contacts the restriction on the front link 2, and the lower base 1, the front link 2, the rear link 3, and the upper base 4 can rotate. At this time, the seat Z is pressed forward, the front link 2 and the rear link 3 rotate relative to the lower base 11, and the upper base 4 rotates relative to the front link 2 and the rear link 3. When the rotation angle is sufficient, the front link 2 and the rear link 3 are roughly horizontal. At this time, after releasing the hand, the front stopper 51 abuts against the front link 2 under the action of the tension spring, preventing the front link 2 and the rear link 3 from moving to a certain extent; when it is necessary to unfold from the folded storage state, there is no need to operate the operating lever 54, and the upper base 4 can be directly The seat Z is rotated upward. During the rotation of the seat Z, the front link 2 and the rear link 3 rotate relative to the lower base 1. At the same time, the upper base 4 rotates relative to the front link 2 and the rear link 3. During the rotation of the front link 2 relative to the upper base 4, the front limit member 51 gradually moves from the position abutting the front link 2 to the position in front of the front link 2. Under the action of the compression spring, when the front link 2 contacts the rear limit rod, the front limit member 51 returns to the lower end of the movable groove 43 of the upper base 4, and the front limit member 51 and the rear limit rod re-fix the lower base 1, the front link 2, the rear link 3 and the upper base 4.

[0071] The beneficial effects of the electric scooter of the utility model are as follows: its folding structure includes a lower base 1, a front connecting rod 2, an upper base 4, and a rear connecting rod 3, and the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are sequentially connected to form a four-link mechanism, and also includes a locking component 5 and a rear limiter 6, the locking component 5 includes a front limiter 51 that moves up and down and a reset power source 52 that acts on the front limiter 51, and when the front limiter 51 is in the locked position under the action of the reset power source 52, the front limiter 51 prevents the four-link mechanism from The structure moves forward, and the rear limit member 6 prevents the four-bar mechanism from moving backward. The front link 2, the upper base 4, and the rear link 3 are in a non-rotatable unfolded state. The reset power source 52 also makes the positions of the lower base 1, the front link 2, the upper base 4, and the rear link 3 reliably remain fixed. When the reset power source 52 is overcome by an external force to move the front limit member 51 from the locked position to the unlocked position, the front link 2, the upper base 4, and the rear link 3 can move, and can be folded at this time; the front limit member 51 moves up and down, and the operation is relatively easy.

[0072] The utility model also provides a folding structure for folding a seat Z of an electric scooter, the folding structure comprising:

[0073] Lower base 1;

[0074] Front link 2;

[0075] Rear link 3;

[0076] Upper base 4;

[0077] The locking assembly 5 includes a front stopper 51 that moves up and down and a reset power source 52 that acts on the front stopper 51. The front stopper 51 is located in front of the front link 2. The front stopper 51 switches between a locking position and an unlocking position.

[0078] A rear stopper 6, located behind the front link 2;

[0079] Among them, the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are connected by rotation in sequence to form a four-bar linkage;

[0080] The upper base 4 is provided with a movable groove 43 for the front limiter 51 to move;

[0081] When the front stopper 51 is in the locked position under the action of the reset power source 52, the front stopper 51 prevents the four-bar linkage from moving forward, and the rear stopper 6 prevents the four-bar linkage from moving backward, and the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 are in a non-rotatable unfolded state;

[0082] When the action of the reset power source 52 is overcome to move the front limiter 51 to the unlocked position, the lower base 1, the front connecting rod 2, the upper base 4, and the rear connecting rod 3 can move forward to a folded state.

[0083] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A folding structure for folding a seat (Z) of an electric scooter, characterized in that: The folding structure comprises: Lower base (1); Front connecting rod (2); Rear connecting rod (3); Upper base (4); The locking assembly (5) comprises a front stopper (51) movable up and down and a reset power source (52) acting on the front stopper (51), wherein the front stopper (51) is located in front of the front connecting rod (2), and the front stopper (51) switches between a locking position and an unlocking position; A rear stopper (6) is located behind the front connecting rod (2); The lower base (1), the front connecting rod (2), the upper base (4) and the rear connecting rod (3) are connected by rotation in sequence to form a four-bar linkage; The upper base (4) is provided with a movable groove (43) for the front limiting member (51) to move. When the front limiter (51) is located in the locking position under the action of the reset power source (52), the front limiter (51) prevents the four-bar linkage from moving forward, and the rear limiter (6) prevents the four-bar linkage from moving backward, and the lower base (1), the front connecting rod (2), the upper base (4), and the rear connecting rod (3) are in a non-rotatable unfolded state; When the front limiter (51) moves to the unlocking position by overcoming the effect of the reset power source (52), the lower base (1), the front connecting rod (2), the upper base (4) and the rear connecting rod (3) can move forward to a folded state.

2. The folding structure according to claim 1, characterized in that: The locking assembly (5) also includes a swing frame (53) rotatably connected to the upper base (4), and the front limiter (51) is fixed on the swing frame (53).

3. The folding structure according to claim 2, characterized in that: The folding structure comprises two groups of four-bar linkage mechanisms distributed on the left and right, the locking assembly (5) comprises two groups of swing frames (53) distributed on the left and right and a reset power source (52), and the locking assembly (5) further comprises an operating rod (54) connecting the two swing frames (53).

4. The folding structure according to claim 1, characterized in that: The rear link (3) is located between the front link (2) and the rear link (3); in the unfolded state, the front link (2) and the rear link (3) are inclined forward; in the unfolded state, the front link (2) and the rear link (3) are parallel.

5. The folding structure according to claim 1, characterized in that: The resetting power source (52) comprises a tension spring, the upper end of which is mounted on the front limiting member (51).

6. The folding structure according to claim 1, characterized in that: In the folded state, the front limiter (51) abuts against the front connecting rod (2) under the action of the resetting power source (52).

7. The folding structure according to claim 1, characterized in that: The rotational connection between the lower base (1), the front connecting rod (2), the upper base (4) and the rear connecting rod (3) is realized by a rotation assembly (8), the rotation assembly (8) comprises a pair of threaded cap screw parts (81) and a shaft sleeve (82) sleeved outside the cap screw parts (81), the lower base (1) and the upper base (4) have two parallel walls, and the front connecting rod (2) and the rear connecting rod (3) are located between the two parallel walls.

8. The folding structure according to claim 7, characterized in that: The rotating assembly (8) further comprises a pair of L-shaped sleeves (83), the shaft sleeve (82) is located between the two L-shaped sleeves (83), and the L-shaped sleeve (83) is located between the two parallel walls and inserted into the connecting holes of the parallel walls.

9. The folding structure according to claim 7, characterized in that: The swing frame (53) comprises two parallel swing arms.

10. An electric scooter, comprising a chassis (D), a seat (Z) and a folding structure, characterized in that: The folding structure is a folding structure as described in any one of claims 1 to 9, wherein the lower base (1) is fixedly connected to the chassis (D), and the upper base (4) is fixedly connected to the seat (Z).

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