A vehicle and a self-locking anti-theft tensioning device thereof

Abstract

This invention discloses a self-locking anti-theft tensioning device, including a tensioning wheel, a mounting component, a driving component, a locking component, and a transmission mechanism. The tensioning wheel is rotatably mounted on the mounting component for tensioning the chain belt. The output end of the driving component is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the locking component, for driving the locking component to move in a preset direction to press and fix the chain belt onto the outer edge of the tensioning wheel. Thus, in the absence of a fixed anchor, the chain belt can be pressed and fixed onto the tensioning wheel by the locking component, achieving a dynamic lock on the front and rear wheels, and consequently, locking the vehicle. This chain belt locking method is not only convenient but also eliminates the need for an external vehicle lock, significantly reducing the installation space requirements on the vehicle frame. Even if someone forcibly steals the entire vehicle, it cannot be driven normally, thus reducing the risk of vehicle theft. This invention also discloses a vehicle with the beneficial effects described above.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a self-locking anti-theft tensioning device. This invention also relates to a vehicle. Background Technology

[0002] With the development of the vehicle industry, all kinds of vehicles have been widely used.

[0003] Currently, in two-wheeled vehicles, such as bicycles and electric vehicles, a chain is used to connect the front and rear wheels for power transmission. This can be achieved through belt drives such as synchronous belts, V-belts, or flat belts, or chain drives. Over time, the chain stretches and loosens, making it prone to slippage. Therefore, to ensure the stability and efficiency of the chain's transmission, a tensioner is usually used to tighten the chain. Figure 1 As shown, Figure 1 This is a schematic diagram of a tensioning wheel for tensioning a chain belt in the prior art. The tensioning wheel 1 is connected to the end of a connecting rod 15, the first end of which is rotatably connected to a spring rod 16. The rod body of the connecting rod 15 is also rotatably connected to a bottom bracket assembly 17 on the frame. Simultaneously, the other end of the spring rod 16 is also rotatably connected to the bottom bracket assembly 17. This ensures the floating of the tensioning wheel 1 and the tension force on the chain belt 5 during operation.

[0004] Meanwhile, due to their small size and ease of operation, two-wheeled vehicles are easily stolen or ridden. In existing technology, to prevent theft, drivers typically use external locks to secure the frame, wheels, and other components. However, locking the wheels or frame requires finding fixed anchors such as utility poles, buildings, or parking brackets, which can limit the available options. Furthermore, the generally small size of two-wheeled vehicles, coupled with their chain-driven and tensioner-based transmission systems that occupy a significant portion of the frame, means there may not be enough space or designated location to install an external lock. Without the ability to secure the frame, wheels, and other components to a fixed anchor, the risk of theft is high.

[0005] Therefore, how to lock a vehicle and reduce the risk of theft when it is impossible to lock the vehicle with an external lock is a technical problem faced by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a self-locking anti-theft tensioning device that can still lock the vehicle when it cannot be locked by an external lock, thereby reducing the risk of vehicle theft. Another purpose of this invention is to provide a vehicle.

[0007] To solve the above-mentioned technical problems, the present invention provides a self-locking anti-theft tensioning device, including a tensioning wheel, a mounting component connected to the vehicle frame, a driving component disposed within the mounting component, a locking component movably disposed on the mounting component, and a transmission mechanism disposed within the mounting component;

[0008] The tensioning wheel is rotatably mounted on the mounting component for tensioning the chain belt; the output end of the driving component is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the locking member for driving the locking member to move in a preset direction to press and fix the chain belt on the outer edge of the tensioning wheel.

[0009] In some specific embodiments, the mounting component is provided with a guide sliding hole, the guide sliding hole extends along the moving direction of the locking member, and the locking member is movably disposed in the guide sliding hole.

[0010] In some specific embodiments, the transmission mechanism includes a lead screw that is poweredly connected to the output end of the drive component, and a transmission slider that is threadedly connected to the lead screw, the transmission slider being connected to the locking member.

[0011] In some specific embodiments, the transmission mechanism further includes a connecting shaft disposed on the transmission slider, the outer end of the connecting shaft extending outside the mounting component, and the locking member being rotatably sleeved on the outer end of the connecting shaft.

[0012] In some specific embodiments, the locking member has protruding teeth on its end face facing the tension wheel, the protruding teeth being used to form a snap-fit ​​engagement with the chain hole or groove on the chain belt.

[0013] In some specific embodiments, a controller and a communicator disposed within the mounting component are also included;

[0014] The communicator is connected to the human-machine interaction control platform on the vehicle frame and / or the user's mobile smart device, and is used to receive locking control signals and unlocking control signals sent by the human-machine interaction control platform and / or the mobile smart device;

[0015] The controller is connected to the control terminal signal of the communicator and the drive component, and is used to control the working state of the drive component according to the control signal received by the communicator.

[0016] In some specific embodiments, a motion sensor disposed on the mounting component is also included. The motion sensor is used to detect the motion state of the chain belt, and the motion sensor is signal-connected to the controller to cause the controller to pause sending locking commands to the drive component when the chain belt is in a non-stationary state.

[0017] In some specific embodiments, a battery assembly disposed on the mounting component is also included. A slot is provided on the side wall of the battery assembly, and a buckle is rotatably disposed on the mounting component for engaging with the slot.

[0018] In some specific embodiments, it also includes a connection port provided on the mounting component, an emergency button pressable on the mounting component, and a backup power supply provided within the mounting component;

[0019] The connection port is electrically connected to the battery assembly and the controller, and is used to charge the battery assembly and / or to allow the controller to perform data interaction;

[0020] The emergency button is signal-connected to the controller and is used to allow the backup power supply to replace the battery assembly when pressed.

[0021] The present invention also provides a vehicle, including a frame and a self-locking anti-theft tensioning device disposed on the frame, wherein the self-locking anti-theft tensioning device is specifically the self-locking anti-theft tensioning device described in any of the above claims.

[0022] The self-locking anti-theft tensioning device provided by this invention mainly includes a tensioning wheel, a mounting component, a driving component, a transmission mechanism, and a locking component. The mounting component is mounted on the frame and is typically connected to a spring rod on the frame. It is mainly used to mount the tensioning wheel and the other components of the device. The tensioning wheel is mounted on the mounting component and forms a rotatable connection with it. It has rotational freedom and can rotate relative to the mounting component. It is mainly used to tension the chain by forming a tight contact between its outer edge and one side of the chain. The driving component is located within the mounting component, and its output end is connected to the locking component. It is mainly used to generate power and output it to the locking component. The transmission mechanism is located within the mounting component, and its (power) input end is connected to the output end of the driving component. Its (power) output end is connected to the locking component. It is mainly used to receive the power generated by the driving component, convert and transmit the power, and finally transmit it to the locking component, causing the locking component to move in a preset direction. The locking element is mounted on the mounting component and forms a movable connection with it. It has at least one degree of linear motion freedom and is primarily used to move along a preset direction on the mounting component under the power drive of the drive component and the power transmission of the transmission mechanism. When moving towards the tension wheel, it presses and fixes the chain belt against the outer edge of the tension wheel, thereby locking the chain belt on the tension wheel. This ensures that the tension wheel cannot rotate and the chain belt cannot transmit power, thus locking the front and rear wheels of the vehicle and cutting off the power transmission between them, preventing the vehicle from being stolen. Of course, when unlocking is needed, the output end of the drive component only needs to output reverse power, which will drive the locking element away from the tension wheel through the transmission mechanism, causing the locking element to disengage from the chain belt.

[0023] Thus, the self-locking anti-theft tensioning device provided by this invention allows the driver to secure the chain to the tensioning wheel by locking the chain when they find no fixed anchor near the parking position, achieving a power lock on the front and rear wheels, and thus locking the vehicle. Compared to existing technologies, the chain-locking method is not only more convenient but also eliminates the need for an external lock, significantly reducing the installation space requirements on the vehicle frame. Even if someone forcibly steals the entire vehicle, it will be unable to drive normally.

[0024] In summary, the self-locking anti-theft tensioning device provided by this invention can still lock the vehicle when it is impossible to lock it with an external lock, thereby reducing the risk of vehicle theft. Attached Figure Description

[0025] 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a tensioning wheel for tensioning a chain belt in the prior art.

[0027] Figure 2 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0028] Figure 3 for Figure 2 The right-side view of the partial structure.

[0029] Figure 4 for Figure 2 Left side view of the partial structure.

[0030] Figure 5 This is a schematic diagram of the internal structure of the mounting components.

[0031] in, Figure 1 — Figure 5 middle:

[0032] Tensioner wheel—1, Mounting component—2, Drive component—3, Locking component—4, Chain belt—5, Transmission mechanism—6, Controller—7, Communicator—8, Motion sensor—9, Battery assembly—10, Buckle—11, Connection port—12, Emergency button—13, Backup power supply—14, Connecting rod—15, Spring rod—16, Bottom bracket component—17;

[0033] Guide hole—21;

[0034] Convex teeth—41;

[0035] Lead screw—61, transmission slider—62, connecting shaft—63;

[0036] Snap-in groove—101. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0039] In one specific embodiment provided by the present invention, the self-locking anti-theft tensioning device mainly includes a tensioning wheel 1, a mounting component 2, a driving component 3, a transmission mechanism 6, and a locking component 4.

[0040] The mounting component 2 is mounted on the frame and is mainly used to mount the tension wheel 1 and other components of the device. The mounting component 2 is usually rotatably connected to the spring rod 16 by the connecting rod 15 to ensure the normal floating of the tension wheel 1.

[0041] The tensioning wheel 1 is mounted on the mounting component 2 and forms a rotatable connection with the mounting component 2. It has a degree of freedom of rotation and can rotate relative to the mounting component 2. It is mainly used to form a tight contact with one side of the chain belt 5 through its outer edge, thereby tensioning the chain belt 5.

[0042] The drive component 3 is installed inside the mounting component 2, and the output end of the drive component 3 is connected to the locking component 4. It is mainly used to generate power and output it to the locking component 4.

[0043] The transmission mechanism 6 is installed inside the mounting component 2, and the (power) input end of the transmission mechanism 6 is connected to the output end of the drive component 3, while the (power) output end of the transmission mechanism 6 is connected to the locking component 4. It is mainly used to receive the power generated by the drive component 3, convert and transmit the power, and finally transmit it to the locking component 4, driving the locking component 4 to move in a preset direction.

[0044] The locking element 4 is mounted on the mounting component 2 and forms a movable connection with it. It has at least one degree of linear motion freedom. Its main function is to move along a preset direction on the mounting component 2 under the power drive of the drive component 3 and the power transmission of the transmission mechanism 6. When moving towards the tension wheel 1, it presses and fixes the chain belt 5 onto the outer edge of the tension wheel 1, thereby locking the chain belt 5 onto the tension wheel 1. This ensures that the tension wheel 1 cannot rotate and the chain belt 5 cannot transmit power, thus locking the front and rear wheels of the vehicle and cutting off the power transmission between them, preventing the vehicle from being stolen. Of course, when unlocking is required, the output end of the drive component 3 only needs to output reverse power, which will drive the locking element 4 away from the tension wheel 1 through the transmission mechanism 6, causing the locking element 4 to disengage from the chain belt 5.

[0045] Thus, the self-locking anti-theft tensioning device provided in this embodiment allows the driver to secure the chain belt 5 to the tensioning wheel 1 by pressing it tightly against the tensioning wheel 1 using the locking member 4 when the driver needs to lock the vehicle and finds no fixed anchor nearby, thereby achieving a power lock on the front and rear wheels and locking the vehicle. Compared to existing technologies, the chain belt 5 method is not only more convenient but also eliminates the need for an external vehicle lock, significantly reducing the installation space requirements on the vehicle frame. Even if someone forcibly steals the entire vehicle, it will be unable to drive normally.

[0046] In summary, the self-locking anti-theft tensioning device provided in this embodiment can still lock the vehicle when it is impossible to lock it with an external lock, thereby reducing the risk of vehicle theft.

[0047] In one specific embodiment of the mounting component 2, the mounting component 2 is a split structure, mainly including a front shell and a rear shell, which are connected together by interlocking. An internal mounting cavity is formed to install components such as the drive component 3, the transmission mechanism 6, and the controller 7.

[0048] like Figure 5 As shown, Figure 5 This is a schematic diagram of the internal structure of mounting component 2.

[0049] To improve the movement stability of the locking member 4 on the mounting component 2, a guide hole 21 is provided on the mounting component 2 in this embodiment. Specifically, the guide hole 21 is generally located on the front end face of the mounting component 2 and extends a predetermined length along the moving direction of the locking member 4, while the locking member 4 is slidably disposed in the guide hole 21. Generally, the tensioning wheel 1 is located facing the guide hole 21, for example, the length direction of the guide hole 21 passes through the center of the tensioning wheel 1. With this configuration, when the driving component 3 drives the locking member 4 to slide within the guide hole 21, the guide hole 21 can guide the movement of the locking member 4, thereby improving the movement stability of the locking member 4.

[0050] Generally, the drive component 3 can be a drive motor, etc. Of course, the drive component 3 can also be a hydraulic cylinder, pneumatic cylinder, or other drive cylinder.

[0051] In one specific embodiment of the transmission mechanism 6, the transmission mechanism 6 mainly includes a lead screw 61 and a transmission slider 62. The lead screw 61 is rotatably mounted within the mounting component 2, possessing rotational freedom, and one end of the lead screw 61 is connected to the output end (e.g., an output shaft) of the driving component 3, enabling it to rotate under the drive of the driving component 3. The transmission slider 62 has a threaded hole and is fitted onto the lead screw 61, forming a threaded connection. However, it does not possess rotational freedom, only linear freedom, and can convert the rotational motion of the lead screw 61 into linear motion of the transmission slider 62 through threaded transmission. Simultaneously, the transmission slider 62 is connected to the locking component 4, for example, through a connecting component such as an extension block. With this configuration, when the driving component 3 drives the lead screw 61 to rotate, the lead screw 61 drives the transmission slider 62 to move linearly, and the transmission slider 62 then drives the locking component 4 to move linearly. Of course, the direction of movement of the transmission slider 62 needs to remain parallel to the sliding direction of the locking component 4.

[0052] Furthermore, considering that the chain belt 5 itself has a certain degree of elasticity, the local posture of the chain belt 5 on the outer edge of the tension wheel 1 may change at any time as the vehicle moves. This may cause the moving direction of the locking member 4 to be unable to remain perpendicular to the side of the chain belt 5, thus failing to guarantee the maximum clamping force. To address this, this embodiment adds a connecting shaft 63 to the transmission mechanism 6. Specifically, the connecting shaft 63 is disposed on the transmission slider 62 and extends outward in a direction perpendicular to the front end face of the mounting component 2, passing through the guide sliding hole 21 in the middle, so that the connecting shaft 63 and the guide sliding hole 21 form a sliding fit. The locking member 4 has a mounting hole and is sleeved on the connecting shaft 63, forming a rotatable connection with the connecting shaft 63. With this configuration, when the transmission slider 62 moves linearly, it drives the connecting shaft 63 to move synchronously linearly within the guide slide hole 21, which in turn drives the locking member 4 to move synchronously linearly. When the side of the locking member 4 facing the tension wheel 1 comes into contact with the side of the chain belt 5, the contact force allows the locking member 4 to move around the connecting shaft 63, ensuring that the locking member 4 maintains a vertical pressing posture when pressing the chain belt 5, thus guaranteeing the maximum pressing force.

[0053] Furthermore, to increase the clamping force of the locking member 4 on the chain belt 5, in this embodiment, a protruding tooth 41 is provided on the end face of the locking member 4 facing the tension wheel 1. The protruding tooth 41 is mainly used to form a snap-fit ​​with the chain hole or groove on the chain belt 5, thereby enhancing the clamping force between the locking member 4 and the chain belt 5 by utilizing the bonding force between the protruding tooth 41 and the chain hole or groove.

[0054] To achieve the automatic locking or unlocking function of the locking component 4, a controller 7 is added in this embodiment. Specifically, the controller 7 is installed inside the mounting component 2 and mainly includes a control board and a control chip. The controller 7 is mainly used to receive locking control signals or unlocking control signals (sent by the human-machine interaction control platform on the frame or the user's mobile smart device). At the same time, the control end of the drive component 3 maintains a signal connection with the controller 7 so that when a locking control signal is received, the drive component 3 outputs positive power, thereby driving the locking component 4 to press and fix the chain belt 5, thus achieving locking; at the same time, when an unlocking control signal is received, the drive component 3 outputs reverse power, thereby driving the locking component 4 to disengage from the chain belt 5, thus achieving unlocking.

[0055] To facilitate signal communication between the controller 7 and external devices, a communicator 8 is added in this embodiment. Specifically, the communicator 8 is installed inside the mounting component 2, and can be located on the control board of the controller 7, maintaining a signal connection with the controller 7. The communicator 8 is mainly used to establish a signal connection with the human-machine interface control platform on the vehicle frame, or with the user's mobile smart device (such as a mobile phone), or simultaneously with both. It is mainly used to receive lock control signals and unlock control signals sent by the human-machine interface control platform or the mobile smart device, and forward the received signals to the controller 7.

[0056] Generally, the communicator 8 specifically includes a wired communication module and a wireless communication module. The wired communication module is used to enable the controller 7 to connect with external devices via a signal cable, while the wireless communication module is used to enable the controller 7 to connect with external devices via wireless communication technologies such as 5G, WIFI, and Bluetooth.

[0057] Considering that if the drive component 3 is accidentally activated during driving, causing the locking element 4 to accidentally lock the chain belt 5, a safety accident may occur. Therefore, this embodiment adds a motion sensor 9. Specifically, the motion sensor 9 is installed on the mounting component 2, for example, on the outer end face of the mounting component 2. Its main function is to detect the movement state of the chain belt 5 to determine whether the chain belt 5 is in motion. When the chain belt 5 is not stationary, the controller 7 stops sending locking commands to the drive component 3, thereby preventing the chain belt 5 from being accidentally locked by the locking element 4 during driving and preventing misoperation. Conversely, the controller 7 can only send locking commands to the drive component 3 when the motion sensor 9 detects that the chain belt 5 is stationary, i.e., in a parked state. Generally, the motion sensor 9 can be a laser sensor, a speed sensor, etc.

[0058] To facilitate power supply to various electrical devices, a battery assembly 10 is added in this embodiment. Specifically, the battery assembly 10 is mounted on the mounting component 2 and forms a fixed or detachable connection with the mounting component 2. For the former, it can generally be fixed through built-in installation. For the latter, in this embodiment, a slot 101 is provided on the side wall of the battery assembly 10, and a buckle 11 is provided on the mounting component 2. The slot and the buckle 11 can form a snap-fit ​​engagement to lock the battery assembly 10 onto the mounting component 2. When disassembly is required, simply open the buckle 11 to disengage it from the slot 101. Generally, the buckle 11 can be rotatably connected to the mounting component 2 through a pin or other component, and a coil spring is provided on the pin or other component, so that after the buckle 11 is rotated by turning it, it disengages from the slot 101, or under the action of elastic force, it returns to its original rotation and forms a snap-fit ​​engagement with the slot 101.

[0059] At the same time, the battery assembly 10 is electrically connected to the electrical equipment in the mounting component 2, such as the controller 7 and the drive component 3, to supply power to them.

[0060] like Figure 3 As shown, Figure 3 for Figure 2 The right-side view of the partial structure.

[0061] Furthermore, to facilitate wired communication between the controller 7 and external devices, as well as charging of the battery assembly 10, a connection port 12 is added in this embodiment. Specifically, this connection port 12 is located on the mounting component 2, such as on one side wall of the mounting component 2, and forms an electrical connection with both the battery assembly 10 and the controller 7. It can be adapted to a charging plug or a data plug, thereby enabling charging of the battery assembly 10 through external devices, or enabling data interaction between the controller 7 and external devices, or both simultaneously. Of course, a dedicated charging port can also be provided on the mounting component 2 to charge the battery assembly 10 through external devices such as a charger.

[0062] like Figure 4 As shown, Figure 4 for Figure 2 Left side view of the partial structure.

[0063] Furthermore, considering that in an emergency, if the battery pack 10 is insufficient to lock the vehicle, it may be impossible to lock it. Therefore, this embodiment also includes an emergency button 13 and a backup power supply 14. Specifically, the emergency button 13 is located on the mounting component 2, typically on the opposite side wall of the mounting component 2, and can be pressed. It is electrically connected to the controller 7 and can trigger a corresponding control command when pressed. The backup power supply 14 is electrically connected to the controller 7 and can typically be connected to the control board of the controller 7. The function of the backup power supply 14 is the same as that of the aforementioned battery pack 10, which is to supply power to the electrical components. However, the backup power supply 14 is not normally activated. Only when the emergency button 13 is pressed will the controller 7 activate the backup power supply 14 according to the triggered control command, so that the drive component 3 can operate normally and drive the locking component 4 to press and fix the chain belt 5.

[0064] This embodiment also provides a vehicle, mainly including a frame and a self-locking anti-theft tensioning device disposed on the frame. Since the self-locking anti-theft tensioning device adopts all the technical solutions of the above-mentioned self-locking anti-theft tensioning device embodiments, the vehicle provided in this embodiment also has all the technical effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0065] It should be noted that the self-locking anti-theft tensioning device provided in this embodiment is applicable not only to two-wheeled vehicles, but also to other vehicles that achieve power transmission through the chain belt 5.

[0066] 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 self-locking anti-theft tensioning device, comprising a tensioning wheel (1), characterized in that, It also includes a mounting component (2) connected to the frame, a drive component (3) disposed in the mounting component (2), a locking component (4) movably disposed on the mounting component (2), and a transmission mechanism (6) disposed in the mounting component (2); The tensioning wheel (1) is rotatably mounted on the mounting component (2) for tensioning the chain belt (5); the output end of the driving component (3) is connected to the input end of the transmission mechanism (6), and the output end of the transmission mechanism (6) is connected to the locking component (4) for driving the locking component (4) to move in a preset direction to press and fix the chain belt (5) on the outer edge of the tensioning wheel (1); It also includes a controller (7) and a communicator (8) disposed within the mounting component (2); The communicator (8) is connected to the human-machine interaction control platform on the vehicle frame and / or the user's mobile smart device, and is used to receive the lock control signal and unlock control signal sent by the human-machine interaction control platform and / or the mobile smart device; The controller (7) is connected to the control terminal signal of the communicator (8) and the drive component (3) and is used to control the working state of the drive component (3) according to the control signal received by the communicator (8); It also includes a motion sensor (9) disposed on the mounting component (2), the motion sensor (9) being used to detect the motion state of the chain (5), and the motion sensor (9) being signal-connected to the controller (7) to cause the controller (7) to pause sending a locking command to the drive component (3) when the chain (5) is in a non-stationary state.

2. The self-locking anti-theft tensioning device according to claim 1, characterized in that, The mounting component (2) is provided with a guide slide hole (21), the guide slide hole (21) extends along the moving direction of the locking member (4), and the locking member (4) is movably disposed in the guide slide hole (21).

3. The self-locking anti-theft tensioning device according to claim 1, characterized in that, The transmission mechanism (6) includes a lead screw (61) that is poweredly connected to the output end of the drive component (3) and a transmission slider (62) that is threadedly connected to the lead screw (61). The transmission slider (62) is connected to the locking component (4).

4. The self-locking anti-theft tensioning device according to claim 3, characterized in that, The transmission mechanism (6) further includes a connecting shaft (63) disposed on the transmission slider (62), the outer end of the connecting shaft (63) extending to the outside of the mounting component (2), and the locking member (4) being rotatably sleeved on the outer end of the connecting shaft (63).

5. The self-locking anti-theft tensioning device according to claim 4, characterized in that, The locking member (4) has a tooth (41) on its end face facing the tension wheel (1), and the tooth (41) is used to engage with the chain hole or groove on the chain belt (5).

6. The self-locking anti-theft tensioning device according to claim 1, characterized in that, It also includes a battery assembly (10) disposed on the mounting component (2), the side wall of the battery assembly (10) having a snap groove (101), and a buckle (11) rotatably disposed on the mounting component (2), the buckle (11) being used to form a snap-fit ​​engagement with the snap groove (101).

7. The self-locking anti-theft tensioning device according to claim 6, characterized in that, It also includes a connection port (12) provided on the mounting component (2), an emergency button (13) pressably provided on the mounting component (2), and a backup power supply (14) provided in the mounting component (2); The connection port (12) is electrically connected to the battery assembly (10) and the controller (7) for charging the battery assembly (10) and / or for data interaction with the controller (7); The emergency button (13) is signal-connected to the controller (7) and is used to allow the backup power supply (14) to replace the battery assembly (10) for power supply when pressed.

8. A vehicle, comprising a frame and a self-locking anti-theft tensioning device disposed on the frame, characterized in that, The self-locking anti-theft tensioning device is specifically the self-locking anti-theft tensioning device as described in any one of claims 1-7.

Images