WO2018068271A1

WO2018068271A1 - Rotation angle locking mechanism

Info

Publication number: WO2018068271A1
Application number: PCT/CN2016/102051
Authority: WO
Inventors: 沈剑; 江旭峰; 黄嘉曦
Original assignee: 深圳易马达科技有限公司
Priority date: 2016-10-13
Filing date: 2016-10-13
Publication date: 2018-04-19
Also published as: CN208134514U

Abstract

Disclosed is a rotation angle locking mechanism (60). The rotation angle locking mechanism is used for locking a back wheel (22) on a pre-set location of a scooter (100), the scooter (100) comprising a pedal (30) and a swing plate (23) with one end pivotally connected to the pedal (30), the other end of the swing plate (23) being mounted with the back wheel (22), wherein the rotation angle locking mechanism (60) comprises a fixed shaft (601) and a positioning seat (602) sheathed on the fixed shaft (601), a locking seat (603) and an elastic element (604) abutting against one side of the locking seat (603) and pressing the locking seat (603) on the positioning seat (602), and the locking seat (603) is non-rotatably connected to the fixed shaft (601); the positioning seat (602) is fixedly arranged in the swing plate (23), a meshing structure (605) for enabling the positioning seat (602) to not rotate relative to the locking seat (603) when the two are combined with each other is arranged between the positioning seat (602) and the locking seat (603); and the pedal (30) is provided with one shifting piece (413) used for pushing the locking seat (603) to separate relative to the positioning seat (602). Compared with the prior art, the rotation angle locking mechanism (60) has a simple pivotal structure, is easy to operate, and has good stability, and the back wheel (22) can be suspended at any angle and in any position.

Description

Rotating angle locking mechanism

[0001] The utility model relates to a rotation angle locking mechanism.

Background technique

[0002] Scooters can be used not only as vehicles, but also as a recreational tool, and their entertainment features are increasingly popular and concerned.

[0003] Currently, conventional scooters are mainly composed of a frame, wheels, handlebars, and other connecting members. In the traditional scooter, the rear wheel and the frame are connected by a pivoting structure, so that the rear wheel can rotate relative to the frame. However, the existing pivoting structure is complicated, and the wheel cannot be hovered at any angle. And location. technical problem

[0004] The technical problem to be solved by the present invention is to provide a rotation angle locking mechanism, which aims to solve the prior art, and the existing pivoting structure is complicated, and the wheel cannot be hovered at any angle and position. Defects on the.

Problem solution

Technical solution

[0005] The present invention provides a rotation angle locking mechanism for locking a rear wheel at a preset position of a scooter, the scooter including a pedal and a swinging plate pivotally connected to the pedal at one end. The rotation end locking mechanism includes a fixed shaft and a positioning seat sleeved on the fixed shaft, a locking seat and a topping in the locking seat. Pressing the lock seat against the elastic member of the lock seat, the lock seat is non-rotatably connected to the fixed shaft; the positioning seat is fixed in the swing plate, the positioning seat and the lock The mating between the two seats is provided with an engaging structure for preventing the positioning seat from rotating relative to the lock seat; the pedal is provided with a dial for pushing the lock seat apart from the positioning seat Moving parts.

[0006] Further, a plurality of first protrusions are protruded from a side surface of the lock seat adjacent to the positioning seat, and a plurality of first protrusions are spaced apart around an axis of the fixed axis; a plurality of second protrusions are protruded from a side surface of the positioning seat adjacent to the lock seat, and the plurality of second protrusions are spaced around the axis of the fixed shaft Between the adjacent first convex portions, a rotation preventing groove for the second convex portion to slide in and out is formed, and the second convex portion and the rotation preventing groove constitute the meshing structure .

[0007] Further, a third protrusion portion is further protruded from a side surface of the positioning seat adjacent to the lock seat, and the third protrusion portion and the plurality of the second protrusion portions are wound around The fixed axis axis is equally spaced, the width of the third protrusion on the cross section of the positioning seat is larger than the width of the second protrusion on the cross section of the positioning seat; The rotation stop groove is divided into a plurality of first rotation preventing grooves and at least one second rotation preventing groove, wherein the first rotation preventing groove is matched with the second convex portion, and the second rotation preventing groove can accommodate at least The third raised portion and the second raised portion adjacent to the third raised portion.

[0008] Further, the number of the second rotation preventing grooves on the lock seat is two, and the center of the two second rotation preventing grooves is 120° to 180° on the axis of the fixed shaft.

Advantageous effects of the invention

Beneficial effect

Compared with the prior art, the rotation angle locking mechanism provided by the utility model has the advantages of simple pivoting structure, convenient operation, good stability, and the ability to hover the rear wheel at an arbitrary angle and position.

Brief description of the drawing

DRAWINGS

1 is a perspective view showing a state of use of a scooter according to a first embodiment of the present invention;

2 is a perspective view of the scooter in an upright state according to the first embodiment of the present invention;

3 is a perspective view showing a state in which the scooter is in a standing state according to the first embodiment of the present invention;

4 is a perspective view showing a state in which a scooter can be stored in a state according to the first embodiment of the present invention;

5 is a cross-sectional view of a scooter according to Embodiment 1 of the present invention;

6 is a perspective view of a folding assembly according to Embodiment 1 of the present invention;

7 is a cross-sectional view of the I-I surface of FIG. 6;

8 is a schematic exploded view of a pedal provided in Embodiment 1 of the present invention;

9 is an exploded perspective view of a pedal, a swinging plate, and a locking device according to Embodiment 1 of the present invention;

10 is a perspective view 1 of a locking component according to a first embodiment of the present invention;

[0020] FIG. 11 is a perspective view 2 of the lock component provided by the first embodiment of the present invention;

[0021] FIG. 12 is a scooter swinging plate, a locking device, and a turning angle locking machine according to a first embodiment of the present invention. Schematic diagram of the structure;

[0022] FIG. 13 is an enlarged view of a portion A of FIG. 12;

[0023] FIG. 14 is a top plan view of the pedal omitting the upper cover 提供 according to the first embodiment of the present invention;

Figure 15 is an enlarged view of a portion B of Figure 14;

[0025] FIG. 16 is a positioning seat provided by Embodiment 2 of the present invention;

17 is a lock seat provided in Embodiment 2 of the present invention.

[0027] Main component symbol description

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]

Scooter front body 21 front wheel rear wheel 23 swing plate column 202 hook member pedal 301 shaft hole housing 303 main bottom cover 305 chute anti-off shaft locking device 401 locking member cable 403 elastic reset member lock body 404a One side b second side 405 card hook

Engagement portion 407 engagement groove engagement piece 409 head connection portion 411 first recess portion second recess portion 413 toggle member a bevel 414 card plate hand portion folding assembly 501 folding frame 502 lock fitting 503 release lock operating member

504 first spring 505 second spring

506 sleeve 507 connecting plate

508 first connecting shaft 509 second connecting shaft

510 third connecting shaft 511 fourth connecting shaft

512 snap groove 513 push rod

60 rotation angle locking mechanism 601 fixed shaft

602 positioning seat 603 lock seat

604 elastic element 605 meshing structure

606 first raised portion 607

608 second raised portion 609 bump

70 linkage unit 701 mount

702 card connector 703 elastic arm

610 third raised portion 611 first stop groove

612 second stop groove

Dl first direction D2 second direction

Embodiments of the invention

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It will be understood that the described embodiments are a part of the embodiments of the invention, and not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without the need for creative labor are within the scope of the present invention.

[0029] In order to enable a person skilled in the art to better understand the technical solution of the present invention, the following is specifically attached The drawings provide a detailed description of the implementation of the present invention.

[0030] For convenience of description, the following terms "front", "back", "left", "right", "upper" and "lower" are the same as the front, back, left, right, up, and down directions of the drawing itself, but It does not limit the structure of the present invention.

[0031] Unless otherwise defined, technical terms or scientific terms used herein shall be used in the ordinary meaning as understood by those of ordinary skill in the art. The terms "first", "second" and similar terms used in the specification and claims of the invention are not intended to indicate any order, quantity or importance, but are merely used to distinguish different components. Similarly, the words "a" or "an" do not denote a quantity limitation, but rather mean that there is at least one.

1 is a perspective view showing a state in which a scooter is in use in an embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which the scooter is in an upright state, and FIG. 3 is a schematic view of the utility model. FIG. 4 is a perspective view showing a state in which the scooter can be stored in a state in which the scooter is in a standing state.

[0033] Embodiment 1

[0034] As shown in FIGS. 1 to 4, a scooter 100 provided in this embodiment includes a front end 10, a vehicle body 20, a front wheel 21, a pedal 30, a rear wheel 22, a swinging plate 23, and a pedal 30. Locking device 40. The front wheel 21 is rotatably mounted on the bottom end of the vehicle body 20, and the pedal 30 is pivotally connected to the bottom of the vehicle body 20. The top surface of the pedal 30 has a lateral direction perpendicular to each other (the direction D1 in the figure, which is substantially the front and rear direction of the pedal 30). Hereinafter, the first direction D1) and the longitudinal direction (the direction D2 in the figure is roughly the left-right direction of the pedal 30, hereinafter collectively referred to as the second direction D2), and the pedal 30 is parallel to the direction of the second direction D2 and the vehicle body 20 The connection is pivotable relative to the body 20 to a deployed position (the position shown in Figure 1) and a closed position (the position shown in Figures 2 to 4). The front end of the swinging plate 23 is pivotally connected to the bottom of the pedal 30 in a direction parallel to the second direction D2, and the rear wheel 22 is rotatably mounted on the rear end of the swinging plate 23, and the locking device 40 can be closed at the body 20 and the pedal 30. The pedal 30 is restrained in the closed position, and the swinging plate 23 is fixed to the pedal 30 to restrict the swinging of the swinging plate 23 relative to the pedal 30. It can be understood that, in the state of use of the scooter 100, the pedal 30 is in an extended position with respect to the vehicle body 20 at an angle of substantially 90° therebetween, and the swinging plate 23 is locked with the pedal 30 by the locking device 40; The pedal 30 can be closed relative to the body 20 when the scooter 100 is not used and not used, i.e., by changing the state of the scooter 100 to place, drag and store the scooter 100.

[0035] The scooter 100 described above includes a body 20, a pedal 30 and a swinging plate 23, and the pedal 30 is parallel to the longitudinal direction. The direction is that the shaft is pivotally connected to the body 20 and is rotatable relative to between the extended position and the closed position. The swinging plate 23 is pivotally connected to the bottom of the pedal 30 in a direction parallel to the longitudinal direction, and the locking device 40 can limit the pedal 30 to The closed position and the rotation of the swinging plate 23 relative to the pedal 30 can be restricted, so that the pedal 30 and the swinging plate 23 and/or the pedal 30 and the body 20 can be locked by the locking device 40 to hold the pedal 30 and the body 20 and the pedal 30 The relative position of the swinging plate 23 is such that the use of the scooter 100 in the use state of the scooter and the upright state, the standing state and the stowed state of the scooter 100 can be more diversified, and the carrying and carrying are more convenient, and After gathering, the space is small and easy to store.

Referring to FIGS. 5 to 8, the vehicle body 20 is a hollow structure having a substantially rectangular cross section, and the front end 10 is disposed at an upper portion of the vehicle body 20 so as to be expandable and contractible with respect to the vehicle body 20. A column 201 is fixed in the bottom end portion of the body 20, and a folding assembly 50 is disposed between the body 20 and the pedal 30. In the present embodiment, the folding assembly 50 includes a folding frame 501, a locking member 502, a release operating member 503, a first spring 504, and a second spring 505. The folding frame 501 includes a sleeve 506 and a pair of connecting plates 507. The sleeve 506 is sleeved on the column 201 and rotatable relative to the axis of the column 201. The front end of the connecting plate 507 is connected to the sleeve 506, and the two connecting plates 507 are parallel to each other. A first connecting shaft 508, a second connecting shaft 509, a third connecting shaft 510, and a fourth connecting shaft 511 are provided from top to bottom between the two connecting plates 50 7 , first, second, third and fourth The connecting shafts 508, 509, 510, 511 are disposed in parallel with each other. The front end portion of the pedal 30 has a shaft hole 301 into which the end portion of the fourth connecting shaft 511 is inserted, and is pivotally connected to the fourth connecting shaft 511 through the shaft hole 301, and a front end portion of the pedal 30 is provided with a retaining shaft 306.

[0037] As can be seen from FIGS. 6 and 7, the unlocking operation member 503 is pivotally connected to the first connecting shaft 508, and the bottom end of the unlocking operating member 503 is coupled to one end of the first spring 504, and the first spring 504 is further One end is connected to the first connecting shaft 508. The upper end of the locking member 502 is pivotally connected to the second connecting shaft 509, the lower end of which is connected to one end of the second spring 505, and the other end of the second spring 505 is connected to the third connecting shaft 510. The lower end portion of the lock member 502 has a snap groove 512 fastened to the pull-off preventing shaft 306, and the bottom end portion of the release operating member 503 is formed with a push rod 513 abutting against the bottom surface of the lock member 502. It is easy to understand that under the tension of the second spring 505, the lower end of the locking member 502 is engaged with the pedal 30 in the extended position of the pedal 30 to keep the relative position of the pedal 30 and the body 20 unchanged. When the release operation member 503 is pressed in the direction of the vehicle body 20 (ie, the upper end of the release operation member 503 is driven upwardly), the push rod 513 abuts against the top lock member 502 to swing the lower end of the lock member 502 upward. The lock member 502 is separated from the retaining shaft 306.

Referring to FIGS. 8 and 9, the pedal 30 includes a housing 302 including an upper cover 303 and a bottom connected to the upper cover 303. The cover 304 has a sliding groove 305 at the rear end of the housing 302. The sliding slot 305 extends from the center of the top surface of the upper cover 303 in a direction parallel to the first direction D1 to the periphery, and the sliding slot 305 extends through the top of the housing 302. Face and bottom. The locking device 40 includes a locking member 401, a substantially rope-like cable 402, and a resilient return member 403. The elastic return member 403 can be a tension spring. The locking member 401 is slidably disposed in the sliding slot 305, and one end of the cable 402 is The front end of the locking member 401 is connected, the other end is connected to the elastic returning member 403, the elastic returning member 403 is movable outwardly at the locking member 401, and the end of the locking member 401 is applied to the locking member 401 toward the pedal 30 near the body 20. Reset elastic return force. The locking member 401 is movable between a locking position and a unlocking position. At the locking position 401, the front side surface of the locking member 401 abuts on the front side wall of the housing 302 on the sliding groove 305. At the same time, the locking member 401 enables the body 20 and/or the swinging plate 23 to be locked to the pedal 30; at the unlocking position at the locking member 401, the locking member 401 and the body 20 and/or the swinging plate 23 are both located. In the unlocked state, under the action of an external force, the body 20 and/or the swinging plate 23 can be disengaged from the pedal 30 and can be rotated relative to the pedal 30 about the pivotal position.

10 and 11, the locking member 401 includes a lock body 404 having an opposite first surface 404a and a second surface 404b, the first surface 404a being located at a bottom end surface of the lock body 404, and the second surface 404b The latch body 404 is formed on the first surface 404a of the lock body 404 to form a hook 405 for engaging with the rear end of the swinging plate 23. The body 20 is formed with a hook member 202 extending upwardly, and the second surface 404b of the lock body 404 is provided with an engaging portion 406 for engaging with the hook member 202. Thus, the fixed connection of the pedal 30 to the swinging plate 23 can be achieved by the hook 405 on the locking member 401, and the pedal 30 can be fixed to the body 20 by the engaging portion 406.

[0040] It is worth mentioning that the locking member 401 is located at the locking position, and the length of the swinging plate 23 abutting the hook 405 in the direction parallel to the first direction D1 is smaller than the hook member 202 abutting the engaging portion 406. length. The locking member 401 is located at the locking position, and the swinging plate 23 and the hook member 202 are both engaged with the locking member 401. The length of the locking member 401 abutting the swinging plate 23 in a direction parallel to the lateral direction is smaller than the locking member. 401 is a length that abuts the hook member 202 in a direction parallel to the lateral direction. In this way, during the sliding and unlocking process of the locking component 401, since the length of the mating abutment is different, as the locking component 401 slides outward, the swinging plate 23 and the locking component 401 are unlocked first, and then the body 20 and the locking component 401 are unlocked. That is, in unlocking the shackle 100 吋, the oscillating plate 23 is first separated from the pedal 30 and the pedal 30 is fixedly coupled to the body 20, and the oscillating plate 23 is rotatable relative to the pedal 30 to select an upright state or a standing state. Use it. [0041] Referring to FIG. 11, the engaging portion 406 includes an engaging groove 407 which is disposed on the second surface 404b and is provided with the hook member 202. The engaging groove 407 is formed and engaged with the hook member 202. The engaging piece 408 can be easily understood that the hook member 202 can be inserted into the engaging groove 407 and engaged with the engaging piece 408. The top surface of the pedal 30 can abut the rear side of the body 20, and the pedal 30 and the body 20 combination is more stable.

[0042] As a further improvement, the hook 405 includes a head portion 409 and a connecting portion 410 connected between the head portion 409 and the lock body 404, and the first concave portion 411 and the second concave portion are formed between the lock body 404 and the head portion 409. 412. The first recess 41 1 and the second recess 412 are respectively located on opposite sides of the connecting portion 410. The first recessed portion 411 is inserted into the rear side edge of the swinging plate 23 and is engaged with the swinging plate 23, and the second recessed portion 412 is in an upright state or in a standing state at the scooter 100, and can be suspended, for example, a shopping bag, a backpack, and a shoulder. Hanging objects such as bags to reduce the burden on users

Referring to FIGS. 12 and 13, as a further improvement, the swinging plate 23 is coupled to the pedal 30 by a rotational angle locking mechanism 60. The rotational angle locking mechanism 60 includes a fixed shaft 601 and a positioning seat 6 that is sleeved on the fixed shaft 601. 02, the locking seat 603 and the abutting on the side of the locking seat 603 and the locking seat 603 against the elastic member 604 of the locking seat 603, the locking seat 603 and the fixed shaft 601 are non-rotatably connected, the elastic element 604 It can be a compression spring. The positioning seat 602 is fixed in the swinging plate 23, and the engaging structure 605 is disposed between the positioning seat 602 and the locking seat 603 so that the two cannot rotate relative to each other. In this embodiment, a plurality of first protrusions 606 are protruded from a side surface of the lock seat 603 adjacent to the positioning base 602. The plurality of first protrusions 606 are spaced apart around the axis of the fixed shaft 601, adjacent to each other. A plurality of second protrusions 608 are formed between the first protrusions 606 and a plurality of second protrusions 608 that can slide into or out of the rotation stop groove 607. The plurality of second raised portions 608 are spaced apart around the axis of the fixed shaft 601 and matched with the shape of the rotation preventing groove 607. The above-mentioned rotation preventing groove 607 and the second convex portion 608 constitute the engaging structure 605. The locking device 40 further includes a dialing member 413. The front end of the dialing member 413 is connected to the elastic returning member 403, and the rear end is connected to the locking member 401 via the cable 402, and the locking member 401 is moved from the locked position to the unlocked position. The dial 413 can separate the positioning seat 602 from the locking seat 603, and the locking seat 603 can rotate relative to the fixed shaft 601. It is worth mentioning that, when the positioning seat 602 and the locking seat 603 are in the disengaged state, the distance of the dialing member 413 in the direction parallel to the first direction D1 is greater than the engagement between the hook 405 and the swinging plate 23. The length of the hook 405 and the swinging plate 23 abutting is smaller than the length at which the hook member 202 and the engaging portion 406 are engaged with each other, that is, during the sliding and unlocking process of the locking member 410, The locking member 401 slides outward, between the swinging plate 23 and the locking member 401 Before the positioning seat 602 and the lock seat 603 are unlocked, the swinging plate 23 can be pulled outwardly relative to the pedal 30 after the swinging plate 23 is first separated from the pedal 30. Rotate to a predetermined position or angle.

[0044] Specifically, one end of the locking seat 603 away from the positioning seat 602 is formed with a protrusion 609, and the dialing member 413 abuts against the protrusion 609 and moves outward in the direction parallel to the first direction D1 of the locking member 401. The dome pushing projection 609 causes the locking seat 603 to move toward the inclined surface 413a away from the positioning seat 602. The dial member 413 pushes the projection 609 by the outward pulling force 609 to separate the positioning seat 602 with respect to the lock seat 603, and the first boss portion 606 and the second protrusion portion 608 are disengaged.

Referring to FIGS. 10 through 15, as further optimization, the rear end of the pedal 30 is provided with a pair of interlocking members 70, and the locking member 401 is located between the two interlocking members 70. The two interlocking members 70 are symmetrically disposed on the left and right sides of the locking member 40 1 , and each of the interlocking members 70 includes a fixing base 701 fixed to the pedal 30 , a card joint 702 , and a connection between the fixing base 701 and the card joint 702 . Elastic arm 703. A latching plate 414 is formed on both sides of the latching member 401, and each of the latching plates 414 has a protrusion for abutting against the card connector. In this embodiment, the number of protrusions protruding from each of the latching plates 414 is, but not limited to, three. The latching plate 414 is recessed with three latching positions, and the three latching positions are staggered with the three projections. The three card positions are from the outside to the inside (ie, from the rear to the front), respectively, the first card position, the second card position, and the third card position. During the outward movement of the locking member, when the card connector 702 crosses the most After the outer protrusion slides into the first latching position, the swinging plate 23 and the locking component 401 are unlocked; when the card connector 702 passes over the middle protrusion and slides into the second latching position, the positioning seat 602 and the locking seat 603 are unlocked. When the card connector 702 passes over the innermost protrusion and slides into the third card position 吋, the lock member 401 is unlocked from the vehicle body.

[0046] As further optimized, the latching member 401 has a hand-held portion 415 having a through hole for a finger to pass through for user convenience.

[0047] The state switching process of the scooter 100 provided by the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0048] At the position 吋 of the pedal 30 with respect to the vehicle body 20, the swinging plate 23 to which the rear wheel 22 is mounted is engaged with the lock member 401, and the scooter 100 is in use;

[0049] When the pulling member 401 is moved backward, the engaging structure 605 between the swinging plate 23 and the pedal 30 and the rotational angle locking mechanism 60 is sequentially unlocked, and the pedal 30 is rotated to the vehicle body 20 through the hook member 202. The locking member 401 is engaged to fix the body 20 and the pedal 30, and the swinging plate 23 can be selectively hovered in the position shown in FIGS. 2 and 3;

[0050] When it is necessary to use the scooter 100A, the locking member 401 is pulled to the unlocked position, during the pulling process, between the swinging plate 23 of the angle locking mechanism 60 and the pedal 30, the engaging structure 605, and the body 20 and the pedal 30 Unlock between the orders.

Embodiment 2

[0052] Only the differences from the previous embodiment will be described in detail below with reference to FIGS. 16 and 17.

[0053] A third protrusion 610 is further protruded from a surface of the positioning seat 602 of the positioning seat 602 adjacent to the locking seat 603. The third protrusion 610 and the plurality of second protrusions 608 are disposed around the fixed axis. The 601 axes are equally spaced, and the width of the third raised portion 610 in the cross section of the positioning seat 602 is greater than the width of the second protrusion 608 in the cross section of the positioning seat 602. The plurality of rotation preventing grooves 607 of the locking seat 603 are divided into a plurality of first rotation preventing grooves 611 and a second rotation preventing groove 612. The first rotation preventing groove 611 is matched with the second convex portion 608, and the second rotation preventing groove is matched. The 612 can accommodate at least the third raised portion 610 and the second raised portion 608 adjacent the third raised portion 610. It is easy to understand that, after the positioning seat 60 2 is separated from the locking seat 603, the second protruding portion 608 is disengaged from the first rotation preventing groove 611, and the positioning seat 602 can rotate relative to the locking seat 603 about the axis of the fixing shaft 601. Since the width of the third convex portion 610 is larger than the first rotation preventing groove 611, when the third convex portion 610 and the second rotation preventing groove 612 are misaligned, the outer end surface of the third convex portion 610 can be abutted. On the outer end surface of the first boss portion 606, the positioning seat 602 is prevented from being engaged with the lock seat 603, thereby maintaining the state in which the positioning seat 602 is rotatable relative to the lock seat 603.

[0054] The width and the number of the second rotation preventing grooves 612 can be designed as needed. Specifically, the number of the second rotation preventing grooves 612 on the locking seat 603 is two, and the two second rotation preventing grooves 612 are fixed at the center. The angle between the axis of the shaft 601 is 120° to 180°. Thus, after being separated from the lock seat 603, the positioning seat 602 can be rotated relative to the lock seat 603 to the next second after the rotation range of 120° to 180°. In the rotation stop groove 612. It is worth mentioning that, after the locking device 40 is unlocked by the third convex portion 610 and the second rotation preventing groove 612, the swinging plate 23 can be pivoted to a preset position and angle to hold the swinging plate 23 at the position. And angle, it is not necessary to apply tension to the locking member 401 all the time, and the positioning is more accurate and fast.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection of the present invention.

Claims

Claim

[Claim 1] A rotation angle locking mechanism for locking a rear wheel at a preset position of a scooter, the scooter including a pedal and a swinging plate pivotally coupled to the pedal at one end, the swinging plate The other end is mounted with the rear wheel; wherein the rotation angle locking mechanism comprises a fixed shaft and a positioning seat sleeved on the fixed shaft, a locking seat and abutting on the side of the locking seat And the locking seat is pressed against the elastic component of the locking seat, the locking seat is non-rotatably connected to the fixing shaft; the positioning seat is fixed in the swinging plate, and the positioning seat is engaged with the locking The seat is disposed in combination with the two, and has an engaging structure for preventing the positioning seat from rotating relative to the lock seat; the pedal is provided with a toggle for pushing the lock seat apart from the positioning seat Pieces.

[Claim 2] The rotation angle locking mechanism according to claim 1, wherein a plurality of first protrusions are protruded from a side surface of the lock seat adjacent to the positioning seat, and a plurality of first a protrusion is disposed around the axis of the fixed shaft; a plurality of second protrusions are protruded from a side surface of the positioning seat adjacent to the lock seat, and the plurality of second protrusions surround the fixed axis The axis is spaced apart; an adjacent rotation preventing groove is formed between the first convex portions for the second convex portion to slide in and out, and the second convex portion and the rotation preventing groove are configured The meshing structure.

[Claim 3] The rotation angle locking mechanism according to claim 2, wherein a third convex portion is protruded from a side surface of the positioning seat adjacent to the locking seat, and the third The raised portion and the plurality of the second raised portions are equally spaced around the fixed axis, the width of the third raised portion in the cross section of the positioning seat is greater than the second protrusion in the a width of the cross section of the positioning seat; the plurality of rotation preventing grooves of the locking seat are divided into a plurality of first rotation preventing grooves and at least one second rotation preventing groove, the first rotation preventing groove and the second convex groove The starting portion is matched, and the second rotation preventing groove is capable of accommodating at least the third convex portion and the second convex portion adjacent to the third convex portion.

[Claim 4] The rotation angle locking mechanism according to claim 3, wherein the number of the second rotation preventing grooves on the lock seat is two, and the centers of the two second rotation grooves are at The angle on the axis of the fixed shaft is 120° to 180°.