Wheel locking structure

Abstract

The application discloses a wheel locking structure, which comprises a mounting seat mounted on a hub shaft; a brake disc fixedly connected with a wheel and capable of rotating with the wheel, wherein a limiting structure is arranged on the brake disc; an elastic belt with one end arranged on the mounting seat and the other end extending along the circumferential direction of the brake disc; a locking block arranged on the elastic belt; and a driving mechanism mounted on the mounting seat and used for driving the elastic belt so that the locking block cooperates with the limiting structure. The wheel locking structure can prevent the wheel from being easily locked during the driving of a vehicle, even if the wheel is misoperated or the locking piece fails. The elastic piece can flexibly cooperate with the brake disc due to the elasticity of the elastic piece, so that the speed of the wheel is slowly reduced until the wheel is completely stopped, and then the wheel lock can be locked to ensure the safety during the driving of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle locking devices, and more specifically, to a wheel locking structure. Background Technology

[0002] There are many types of bicycles on the market, and wheel locks also have various functions. Especially with the increasing popularity of bicycles in recent years, there is a wide variety of wheel locks available. Different functions and styles of wheel locks are produced to meet different needs and application scenarios, serving purposes such as wheel locking, theft prevention, and braking.

[0003] In the prior art, a lock that is installed on a wheel hub and allows the wheel to rotate generally consists of a locking pin assembly installed on the wheel hub, and a locking tongue assembly installed on the wheel hub. The locking tongue of the locking tongue assembly cooperates with the locking pin of the locking pin assembly to limit the rotation of the wheel.

[0004] However, during driving, due to misoperation or malfunction of the locking tongue assembly, the wheels may brake suddenly while rotating, and the vehicle may come to a stop from a high speed in a very short time, which can easily create safety hazards. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a wheel locking structure to prevent wheel lock-up during driving.

[0006] To address the problems existing in the prior art, the present invention provides the following technical solution:

[0007] A wheel locking structure, comprising,

[0008] Mounting bracket installed on the hub axle;

[0009] A brake disc that is fixedly connected to a wheel and can rotate with the wheel, wherein the brake disc is provided with a limiting structure;

[0010] An elastic band with one end set on the mounting base and the other end extending along the circumference of the gate disc;

[0011] Locking blocks are provided on the elastic band;

[0012] A drive mechanism mounted on the mounting base for driving the elastic band so that the locking block engages with the limiting structure.

[0013] The elastic band body has an arc-shaped structure, and the two ends of the elastic band are respectively provided with a fixed mounting part and a drive mounting part;

[0014] The fixed mounting part is installed on the wheel mounting seat;

[0015] The drive mounting part is used for drive connection with the drive mechanism.

[0016] The elastic band is provided with an elastic part, which is a structure formed by bending or folding the main body of the elastic band outward in an arc shape. The elastic part forms an opening on the original arc-shaped line of the elastic band.

[0017] The elastic band is an elastic steel band.

[0018] The gate plate is provided with locking blocks, and the limiting structure formed between the locking blocks cooperates with the locking blocks.

[0019] The drive mechanism includes:

[0020] Power components used to provide power;

[0021] Gear assemblies that transmit power;

[0022] An eccentric component connected to the elastic band and driven by the gear assembly.

[0023] The gear assembly includes a drive gear and a transmission gear, which mesh with each other.

[0024] The drive gear is connected to the shaft of the power component;

[0025] The eccentric shaft of the eccentric component is mounted on the transmission gear;

[0026] The drive mounting part of the elastic band is connected to the eccentric component.

[0027] The drive assembly further includes a limiting post;

[0028] The transmission gear is provided with an open limit part and a close limit part. When the transmission gear rotates to different positions, the limit part can cooperate with the open limit part and the close limit part respectively to limit the rotation of the transmission gear.

[0029] The transmission gear is equipped with a torsion spring. When the drive gear loses power, the transmission gear is reset by the force of the torsion spring until the opening limit part contacts the limit post to limit the continued rotation of the transmission gear.

[0030] The transmission gear has a sawtooth area and an arc-shaped area in its circumference, and the sawtooth in the sawtooth area meshes with the drive gear;

[0031] The arc-shaped area mates with the side of the limiting post, and the opening limiting part and the closing limiting part are the two ends of the sawtooth area, respectively.

[0032] When the drive gear locks the wheel, the transmission gear rotates from the open position to the closed position, and the limiting post changes from engaging with the open limiting part to engaging with the closed limiting part. The shaft of the eccentric block maintains rotation in the same direction throughout the process. The position of the closed limiting part ensures that when the limiting post engages with the closed limiting part, the stroke of the eccentric block passes through the maximum driving displacement of the driving mounting part and continues to rotate until the driving force of the driving mounting part is less than the maximum driving force.

[0033] The power component includes a control motor, a control board, and control lines. The shaft of the control motor is connected to the drive gear shaft, and the control board is electrically connected to the control motor via the control lines.

[0034] It also includes a lock body seat, the drive mechanism is mounted on the lock body seat, and the lock body seat is mounted on a mounting base.

[0035] The lock body base is also equipped with a lock cover.

[0036] This also includes an eccentric wheel cover, which is installed on the part of the drive mechanism that is exposed outside the wheel.

[0037] It also includes a brake assembly, which includes a brake seat, a shoe assembly and a rocker arm;

[0038] The brake seat is fixedly connected to the mounting seat;

[0039] The brake seat is provided with an annular sidewall;

[0040] The shoe is two symmetrical arc-shaped components, mounted on the brake seat, with the outer surfaces of the two shoes facing the annular sidewall;

[0041] One end of the shoe block is mounted on the brake seat by a pin, and the other end of the shoe block has a corresponding strip-shaped notch, with a strip pin at the notch;

[0042] The rocker arm is rotatably mounted on the brake seat, and the tail end of the rocker arm is fixedly connected to the strip pin via a shaft.

[0043] The shoe block and the brake seat are provided with elastic springs, and the elastic springs exert an interaction force on the end of the shoe block with a strip-shaped notch.

[0044] The wheel locking structure of the present invention includes a mounting base mounted on a wheel hub axle; a brake disc fixedly connected to the wheel and capable of rotating with the wheel, the brake disc having a limiting structure; an elastic band with one end disposed on the mounting base and the other end extending along the circumference of the brake disc; a locking block disposed on the elastic band; and a driving mechanism mounted on the mounting base for driving the elastic band so that the locking block engages with the limiting structure.

[0045] The wheel locking structure of the present invention will not easily lock up even if the vehicle is misoperated or the lock malfunctions during driving. Due to its elasticity, the elastic element can flexibly cooperate with the brake disc, so that the speed of the wheel can be gradually reduced until it stops completely, and then the lock can lock, ensuring safety during driving. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the wheel structure;

[0048] Figure 2 This is a schematic diagram of the axial cross-section of the wheel;

[0049] Figure 3 This is a schematic diagram of the wheel locking structure of the present invention;

[0050] Figure 4 This is the formal diagram of the elastic band;

[0051] Figure 5 This is a 3D diagram of an elastic band;

[0052] Figure 6 This is a schematic diagram of the gate's structure;

[0053] Figure 7 This is a schematic diagram showing the connection between the brake seat and the lock body seat;

[0054] Figure 8 A schematic diagram showing the connection between the lock body seat with the drive mechanism and the brake seat;

[0055] Figure 9 This is a schematic diagram of the drive mechanism;

[0056] Figure 10 This is a schematic diagram of the transmission gear structure;

[0057] Figure 11This is a schematic diagram of the power component.

[0058] Figure 12 This is a diagram showing the working state of the wheel locking structure of the present invention;

[0059] Figure 13 This is an exploded view of the wheel locking structure of the present invention.

[0060] In the diagram, the components are: wheel 1, wheel locking structure 2, mounting base 21, elastic band 22, locking block 221, fixed mounting part 222, drive mounting part 223, elastic part 224, brake disc 23, limit structure 231, locking block 232, drive mechanism 3, power component 31, drive gear 32, transmission gear 33, eccentric component 34, limit post 35, open limit part 331, close limit part 332, eccentric wheel cover 4, control motor 311, control board 312, control line 313, lock body seat 314, lock cover 315, brake assembly 5, brake seat 51, shoe block assembly 52, rocker arm 53, strip pin 54, cuboid bolt mounting hole 55, and cuboid bolt 56. Detailed Implementation

[0061] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0062] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0063] The embodiments of the present invention are combined with Figures 1-13 Write in a progressive manner.

[0064] Combination Figure 2 and Figure 12 A wheel locking structure 2, comprising,

[0065] Mounting bracket 21 installed on the hub axle;

[0066] A brake disc 23 is fixedly connected to the wheel 1 and can rotate with the wheel 1. A limit structure 231 is provided on the brake disc 23.

[0067] An elastic band 22 with one end set on the mounting base 21 and the other end extending along the circumference of the gate disc 23;

[0068] Locking block 221 is provided on elastic band 22;

[0069] The drive mechanism 3 is mounted on the mounting base 21 and is used to drive the elastic band 22 so that the locking block 221 cooperates with the limiting structure 231.

[0070] The locking block 221 can be connected to the elastic band 22 by processes such as stamping, riveting, and welding.

[0071] Combination Figure 1 and Figure 3 The wheel 1 is equipped with the wheel locking structure 2 of the present invention. An elastic band 22 is mounted on the mounting base 21, extending along the circumference of the brake disc 23. One side of the elastic band 22 faces the brake disc 23, and the locking block 221 on the elastic band 22 faces the limiting structure 231 on the brake disc 23. When the vehicle moves forward, the locking block 221 of the elastic band 22 contacts the limiting structure 231 on the brake disc 23. When braking or locking is required, the elastic band 22 is tightened by the drive mechanism 3. At this time, the locking block 221 of the elastic band 22 contacts the limiting structure 231 on the brake disc 23, which slows down or stops the rotation of the brake disc 23, achieving the purpose of braking or locking. Because the elastic band 22 is an elastic band structure, locking is relatively gentle, preventing the vehicle from suddenly stopping and reducing safety hazards.

[0072] Combination Figure 4 and Figure 5 The main body of the elastic band 22 of the present invention is an arc-shaped structure, and the two ends of the elastic band 22 are respectively provided with a fixed mounting part 222 and a driving mounting part 223;

[0073] The fixed mounting part 222 is mounted on the wheel 1 mounting seat 21;

[0074] The drive mounting part 223 is used for drive connection with the drive mechanism 3.

[0075] The elastic band 22 is an arc-shaped structure corresponding to the outer surface of the brake disc 23. The fixed mounting part 222 of the elastic band 22 can be formed by extending and bending the body of the elastic band 22, or a fixed mounting part can be added to the elastic band 22. Similarly, the drive mounting part 223 of the elastic band 22 can be formed by extending and bending the body of the elastic band 22, or a drive mounting part can be added to the elastic band 22. The fixed mounting part 222 and the drive mounting part 223 formed by extending and bending the body of the elastic band 22 can make the structure of the elastic band 22 simpler and the production cost lower.

[0076] The elastic band 22 of the present invention is provided with an elastic part 224. The elastic part 224 is a structure formed by bending or folding the main body of the elastic band 22 outward in an arc shape. The elastic part 224 forms an opening on the original arc-shaped line of the elastic band 22.

[0077] The structure of the elastic band 22 body bending or folding outward in an arc shape is equivalent to the elastic part 224 forming an opening on the original arc-shaped line of the elastic band 22. This makes it easier for the elastic band 22 to be stretched in the arc direction, resulting in better elastic performance, smoother and slower braking, less likelihood of sudden locking, and reduced safety hazards.

[0078] The elastic band 22 of the present invention is an elastic steel band, or it can be a band structure with a certain degree of elasticity made of other materials.

[0079] Combination Figure 6 The limiting structure 231 can be a locking block 232 provided on the gate plate, and the limiting structure 231 formed between the locking blocks 232 cooperates with the locking block 221. The locking block 232 can be square, circular or triangular, or it can be a structure with an arc-shaped surface. The example of the limiting structure 231 here does not represent a limitation of the limiting structure 231 of the present invention. It is just that any structure that can cooperate with the locking block 221 on the elastic band 22 to play a limiting role can achieve the purpose of the present invention.

[0080] Combination Figure 7 , Figure 8 and Figure 9 The driving mechanism 3 of the present invention includes:

[0081] Power component 31 for providing power;

[0082] Gear assemblies that transmit power;

[0083] An eccentric component 34 connected to the elastic band 22 and driven by the gear assembly.

[0084] The eccentric component 34 is connected to the elastic band 22. When the power component 31 transmits power to the gear assembly, the gear assembly drives the eccentric component 34 to rotate or move, thereby causing the elastic band 22 to deform. This allows the elastic band 22 to move closer to or further away from the brake disc 23, thereby controlling the locking or unlocking of the wheel locking structure 2.

[0085] The gear assembly of the present invention includes a drive gear 32 and a transmission gear 33, which mesh with each other.

[0086] Drive gear 32 is connected to the shaft of power component 31;

[0087] The eccentric shaft of the eccentric component 34 is mounted on the transmission gear 33;

[0088] The drive mounting part 223 of the elastic band 22 is connected to the eccentric component 34.

[0089] like Figure 11 As shown, the power component 31 is a motor, and the shaft of the motor is connected to the drive gear 32. When the power component 31 is started, the shaft of the motor rotates, which drives the drive gear 32 to rotate. Since the drive gear 32 and the transmission gear 33 mesh, the rotation of the drive gear 32 drives the rotation of the transmission gear 33, thereby driving the rotation of the eccentric component 34. In this invention, the eccentric component 34 can be an eccentric block. The eccentric component 34 is mounted on the drive mounting part 223 of the elastic belt 22.

[0090] Furthermore, the drive assembly of the present invention also includes a limiting post 35; the transmission gear 33 is provided with an open limiting part 331 and a closed limiting part 332. When the transmission gear 33 rotates to different positions, the limiting part can cooperate with the open limiting part 331 and the closed limiting part 332 respectively to limit the rotation of the transmission gear 33.

[0091] When the open limit part 331 and the closed limit part 332 of the transmission gear 33 are engaged with the limit post 35, the transmission gear 33 will no longer rotate, reducing the position of the drive gear 32 leading the transmission gear 33 beyond the open and closed positions, reducing the phenomenon of the wheel locking structure 2 not locking properly or over-locking, and improving the stability of the wheel locking structure 2 of the present invention.

[0092] The transmission gear 33 of this invention is provided with a torsion spring. When the drive gear 32 loses power, the transmission gear 33 resets under the force of the torsion spring until the opening limit part 331 contacts the limit post 35 to limit the continued rotation of the transmission gear 33. When the wheel locking structure 2 opens and the power component stops operating, the drive gear 32 loses power. At this time, the transmission gear 33 resets to the open position under the force of the torsion spring until the opening limit part 331 of the transmission gear 33 engages with the limit post 35. At this time, the tension of the eccentric component 34 on the drive mounting part 223 of the elastic band 22 is minimal. At this time, the elastic band 22 separates from the brake disc 23, and the locking block 221 of the elastic band 22 exits from the limit structure 231 of the brake disc 23, completing the unlocking.

[0093] As an optional implementation method, such as Figure 10 As shown, the transmission gear 33 has a sawtooth area and an arc-shaped area in its circumference. The sawtooth in the sawtooth area meshes with the drive gear 32; the arc-shaped area cooperates with the side of the limiting post 35. The opening limiting part 331 and the closing limiting part 332 are the two ends of the sawtooth in the sawtooth area, respectively.

[0094] Combination Figure 11The circumferential sawtooth of the transmission gear 33 does not cover the entire circumference, but has an arc-shaped area. The diameter of the arc-shaped area is smaller than the diameter of the sawtooth area. Therefore, the two ends of the sawtooth area form an open limit part 331 and a close limit part 332. With this design, the sawtooth at both ends of the transmission gear 33 is the open limit part 331 and the close limit part 332. The structure is simple, the production is simple, and the additional open limit part 331 and close limit part 332 are reduced, making the operation of the wheel locking structure 2 more stable.

[0095] When the transmission gear 33 rotates to the point where the limit part 331 abuts against the limit post 35, the transmission gear 33 can no longer rotate, and it is in the unlocked state. The tension of the eccentric component 34 on the elastic band 22 is minimal. When the wheel locking structure 2 is locked, the drive assembly is activated, and the transmission gear 33 rotates under the drive of the drive gear 32, which is driven by the tension of the anti-torsion spring. At this time, the eccentric component 34 generates a tension on the elastic band 22, causing the elastic band 22 to move relative to the brake disc 23, thereby causing the locking block 221 of the elastic band 22 to fall into the limit structure 231 of the brake disc 23, thus achieving locking.

[0096] When the drive gear 32 locks the wheel 1, the transmission gear 33 rotates from the open position to the closed position, and the limiting post 35 changes from engaging with the open limiting part 331 to engaging with the closed limiting part 332. The shaft of the eccentric block maintains rotation in the same direction throughout the process. The position of the closed limiting part 332 ensures that when the limiting post 35 engages with the closed limiting part 332, the stroke of the eccentric block passes through the maximum driving displacement of the eccentric block action drive mounting part 223, and continues to rotate until the driving force of the action drive mounting part 223 is less than the maximum driving force.

[0097] The circumferential sawtooth of the transmission gear 33 does not cover the entire circumference, but has an arc-shaped area. The diameter of the arc-shaped area is smaller than the diameter of the sawtooth area. Therefore, the two ends of the sawtooth area form an open limit part 331 and a closed limit part 332. When the transmission gear 33 rotates to the point where the open limit part 331 abuts against the limit post 35, the transmission gear 33 can no longer rotate. At this time, it is in the unlocked state. The tension of the eccentric block on the elastic band 22 is minimal. At this time, the position of the eccentric block is the minimum driving displacement of the driving mounting part 223.

[0098] When the wheel locking structure 2 is locked, the drive assembly is activated. Driven by the drive gear 32, the transmission gear 33 rotates under the tension of the anti-torsion spring. At this time, the eccentric component 34 exerts a tension on the elastic band 22, causing the elastic band 22 to move relative to the brake disc 23. When the elastic band 22 is closer to the brake disc 23, the eccentric block is at the maximum drive displacement of the drive mounting part 223. At this point, when the locking block 221 of the elastic band 22 is fully engaged with the limiting structure 231 of the brake disc 23, the brake disc 23 stops rotating, thereby stopping the wheel 1. However, to make the wheel locking structure 2 of this invention more stable and to prevent automatic unlocking due to insufficient driving force of the power assembly during locking, when the eccentric block is at the maximum drive displacement of the drive mounting part 223, the limiting post 35 is not engaged with the limiting part at one end of the serrated belt on the transmission gear 33. When the eccentric block 332 abuts, the transmission gear 33 continues to rotate under the drive of the drive gear 32 until the driving force of the drive mounting part 223 is slightly less than the maximum driving force. At this time, the limiting part 332 abuts against the limiting post 35, and the transmission gear 33 stops rotating. The advantage of this design is that during the locking process, the eccentric block jumps over the maximum driving displacement of the drive mounting part 223 and reaches a position where the driving force of the drive mounting part 223 is slightly less than the maximum driving force. At this time, even if the drive gear 32 loses the driving force of the power component, due to the connection between the elastic band 22 and the drive mounting part 223 and the eccentric block, the eccentric block will rotate in the direction of the smaller force of the drive mounting part 223, instead of towards the maximum driving displacement of the drive mounting part 223. This allows the wheel locking structure 2 to open automatically, increasing the stability of the wheel locking structure 2 of the present invention.

[0099] Especially in the structure of some bicycles, the drive components of the locking mechanism are often small and have weak driving force due to the limitations of installation size and cost. If the eccentric block completes the locking process at the maximum driving displacement of the drive mounting part 223, and the power component loses driving force, the drive gear 32 loses power. At this time, the transmission component will rotate along the rotation direction of the eccentric block during the locking process, and the lock will automatically open. This makes the wheel locking structure 2 unstable.

[0100] Combination Figures 1-13 The wheel locking structure 2 of the present invention also includes an eccentric wheel cover 4, which is installed on the mounting base 21 to cover the drive mechanism 3, protect part of the structure of the drive mechanism 3 and the elastic band 22, and facilitate installation.

[0101] The power component 31 of the present invention includes a control motor 311, a control board 312 and a control line 313. The rotating shaft of the control motor 311 is connected to the shaft of the drive gear 32, and the control board 312 is electrically connected to the control motor 311 through the control line 313.

[0102] It also includes a lock body seat 314, on which a power assembly is mounted. Specifically, a control motor 311 and a control plate are mounted on the lock body seat 314. The lock body seat 314 of the present invention is mounted on a mounting base 21, which has a cuboid bolt mounting hole 55. The lock body seat 314 can be mounted on the mounting base 21 by a square head bolt. The drive gear 32 and the transmission gear 33 are rotatably mounted on the mounting base 21.

[0103] The lock body seat 314 is also provided with a lock cover 315, which can better protect the drive mechanism 3 and facilitate the installation of the wheel locking structure 2.

[0104] The wheel locking structure 2 of the present invention also includes a brake assembly 5, which includes a brake seat 51, a shoe assembly 52 and a rocker arm 53;

[0105] Brake seat 51 is fixedly connected to mounting seat 21;

[0106] The brake seat 51 is provided with an annular sidewall;

[0107] The shoe blocks are two symmetrical arc-shaped components, mounted on the brake seat 51, with the outer surfaces of the two shoe blocks facing the annular sidewalls;

[0108] One end of the shoe block is mounted on the brake seat 51 by a pin, and the other end of the shoe block has a corresponding strip-shaped notch, and a strip pin 54 is provided at the strip-shaped notch;

[0109] The rocker arm 53 is rotatably mounted on the brake seat 51, and the tail end of the rocker arm 53 is fixedly connected to the bar pin 54 via a shaft.

[0110] When the braking device is needed to lock the wheel 1, the rocker arm 53 is pressed down. At this time, the tail end of the rocker arm 53 drives the strip pin 54 to rotate through the shaft. The strip pin 54 pushes open the strip notch. At this time, the end of the shoe with the strip notch is separated from each other due to the action of the strip locking member. At this time, the outer surface of the shoe abuts against the annular side wall of the brake disc, so that the brake seat 51 stops rotating, thereby driving the wheel 1 to stop rotating.

[0111] The shoe block and brake seat 51 of the present invention are provided with elastic elements, and the elastic springs provide an interaction force to the end of the shoe block with the strip-shaped notch.

[0112] When not braking, the shoe blocks move closer together at the ends with the strip-shaped notch under the action of the elastic spring, and the long side of the strip-shaped pin 54 engages with the strip-shaped notch, causing the outer surface of the shoe block to separate from the annular sidewall.

[0113] When in braking condition, the two ends of the strip pin 54 engage with the strip notch under the action of the rocker arm 53, and the outer surface of the shoe block abuts against the annular sidewall.

[0114] The wheel locking structure of the present invention can be applied to the wheel devices of two-wheeled, three-wheeled or four-wheeled vehicles such as motorcycles, bicycles, electric vehicles, ebikes, and scooters.

[0115] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel locking structure, characterized in that... include: Mounting bracket (21) on the hub axle; A brake disc (23) is fixedly connected to the wheel (1) and can rotate with the wheel (1). The brake disc (23) is provided with a limiting structure (231). An elastic band (22) with one end set on the mounting base (21) and the other end extending along the circumference of the gate disc (23). Locking block (221) disposed on the elastic band (22); A drive mechanism (3) mounted on the mounting base (21) for driving the elastic band (22) so that the locking block (221) cooperates with the limiting structure (231).

2. The wheel locking structure as described in claim 1, characterized in that: The main body of the elastic band (22) is an arc-shaped structure, and the two ends of the elastic band (22) are respectively provided with a fixed mounting part (222) and a driving mounting part (223). The fixed mounting part (222) is mounted on the wheel (1) mounting seat (21); The drive mounting part (223) is used for drive connection with the drive mechanism (3).

3. The wheel locking structure as described in claim 2, characterized in that: The elastic band (22) is provided with an elastic part (224), which is a structure formed by bending or folding the main body of the elastic band (22) outward in an arc shape. The elastic part (224) forms an opening on the original arc-shaped line of the elastic band (22).

4. The wheel locking structure as described in claim 3, characterized in that: The elastic band (22) is an elastic steel band.

5. The wheel locking structure as described in claim 4, characterized in that: The gate (23) is provided with locking blocks (232), and the limiting structure (231) formed between the locking blocks (232) cooperates with the locking block (221).

6. The wheel locking structure as described in any one of claims 2-5, characterized in that: The drive mechanism (3) includes: Power components (31) used to provide power; Gear assemblies that transmit power; An eccentric component (34) connected to the elastic band (22) and driven by the gear assembly.

7. The wheel locking structure as described in claim 6, characterized in that: The gear assembly includes a drive gear (32) and a transmission gear (33), which mesh with each other. The drive gear (32) is connected to the shaft of the power component (31); The eccentric shaft of the eccentric component (34) is mounted on the transmission gear (33); The drive mounting part (223) of the elastic band (22) is connected to the eccentric component (34).

8. The wheel locking structure as described in claim 7, characterized in that: The drive mechanism (3) also includes a limiting post (35); The transmission gear (33) is provided with an open limit part (331) and a close limit part (332). When the transmission gear (33) rotates to different positions, the limit part can cooperate with the open limit part (331) and the close limit part (332) respectively to limit the rotation of the transmission gear (33).

9. The wheel locking structure as described in claim 8, characterized in that: The transmission gear (33) is provided with a torsion spring. When the drive gear (32) loses power, the transmission gear (33) is reset by the force of the torsion spring until the opening limit part (331) contacts the limit post (35) to limit the continued rotation of the transmission gear (33).

10. The wheel locking structure as described in claim 9, characterized in that: The transmission gear (33) is provided with a sawtooth area and an arc-shaped area in the circumference, and the sawtooth in the sawtooth area meshes with the drive gear (32); The arc-shaped area cooperates with the side of the limiting post (35), and the opening limiting part (331) and the closing limiting part (332) are the two ends of the sawtooth area respectively.

11. The wheel locking structure as described in claim 10, characterized in that: When the drive gear (32) locks the wheel (1), the transmission gear (33) rotates from the open position to the closed position, and the limiting post (35) changes from cooperating with the open limiting part (331) to cooperating with the closed limiting part (332). The shaft of the eccentric component (34) rotates in the same direction throughout the process. The position of the closed limiting part (332) ensures that when the closed limiting part (332) cooperates with the limiting post (35), the stroke of the eccentric component (34) passes through the maximum driving displacement of the driving mounting part (223) and continues to rotate until the driving force of the driving mounting part (223) is less than the maximum driving force.

12. The wheel locking structure as described in claim 11, characterized in that: The power component (31) includes a control motor (311), a control board (312), and a control line (313). The shaft of the control motor (311) is connected to the shaft of the drive gear (32), and the control board (312) is electrically connected to the control motor (311) through the control line (313).

13. The wheel locking structure as described in claim 12, characterized in that: It also includes a lock body seat (314), on which the drive mechanism (3) is mounted, and the lock body seat (314) is mounted on a mounting base (21).

14. The wheel locking structure as described in claim 13, characterized in that: The lock body base (314) is also provided with a lock cover (315).

15. The wheel locking structure as described in claim 14, characterized in that: It also includes an eccentric wheel cover (4), which is mounted on the mounting base (21) and covers the drive mechanism (3).

16. The wheel locking structure as described in claim 15, characterized in that: It also includes a brake assembly (5), which includes a brake seat (51), a shoe assembly (52), and a rocker arm (53); The brake seat (51) is fixedly connected to the mounting seat (21); The brake seat (51) is provided with an annular sidewall; The shoe is two symmetrical arc-shaped components, which are mounted on the brake seat (51), and the outer surfaces of the two shoes are opposite to the annular sidewall; One end of the shoe block is mounted on the brake seat (51) by a pin, and the other end of the shoe block is provided with a corresponding strip-shaped notch, and a strip-shaped pin (54) is provided at the strip-shaped notch. The rocker arm (53) is rotatably mounted on the brake seat (51), and the tail end of the rocker arm (53) is fixedly connected to the strip pin (54) via a shaft.

17. The wheel locking structure as described in claim 16, characterized in that: The shoe block and the brake seat (51) are provided with elastic springs, and the elastic springs exert an interaction force on the end of the shoe block with a strip-shaped notch.

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