Steering wheel lock with alarm function

Abstract

The utility model relates to an automobile anti-theft lock, in particular to a steering wheel lock with an alarm function, which comprises a fixed rod and a movable rod, a locking assembly is arranged on the fixed rod, the locking assembly comprises a spring bolt, the spring bolt rotates to be switched between a locking state and an unlocking state, the spring bolt comprises an upper part and a lower part, the upper part is connected with the lower part through an elastic part, and the elastic part is connected with the movable rod. The movable rod is provided with a plurality of locking grooves, each locking groove comprises an inclined lifting face, the lower end of the lower portion is eccentrically arranged, the fixed rod is further provided with an alarm module, the alarm module comprises a vibration sensor, a controller, an inductive switch and an alarm piece, the vibration sensor is in signal connection with the controller, the controller is in control connection with the alarm piece, and the inductive switch is connected with the alarm piece in series. A trigger piece is arranged on the side face of the spring bolt, when the spring bolt is in a locking state, the trigger piece is opposite to the inductive switch, the inductive switch is switched on, the rotating action of the spring bolt is associated with on-off of the alarm circuit, and alarm cannot be triggered during normal unlocking.

Description

Technical Field

[0001] This utility model relates to an anti-theft lock for automobiles, and more particularly to a steering wheel lock with an alarm function. Background Technology

[0002] The existing steering wheel lock locks lock or unlock the movement of the lever by inserting a key into the lock cylinder and turning the lock tongue. In addition to using physical locking to prevent theft, it is proposed to add an alarm anti-theft function, which links the lock tongue turning action with the on / off state of the alarm circuit. When locked, the circuit where the alarm is located is activated, which can both deter thieves and notify the car owner in time. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a steering wheel lock with an alarm function, which adds alarm and anti-theft functions and links the rotation of the lock tongue with the on and off of the alarm circuit.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A steering wheel lock with an alarm function includes a fixed rod and a movable rod. The fixed rod is provided with a locking assembly, which includes a locking tongue. The locking tongue has a locked state and an unlocked state, and the locking tongue rotates to switch between the locked and unlocked states. The locking tongue includes an upper part and a lower part, which are connected by an elastic element. The upper side abuts against the lower side. The movable rod is slidably disposed within the fixed rod, and the movable rod has several locking grooves corresponding to the lower part. The groove includes an inclined lifting surface, the higher part of which communicates with the surface of the movable rod. The lower end of the lower part is eccentrically positioned and moves along the lifting surface. The fixed rod is also equipped with an alarm module, which includes a vibration sensor, a controller, a sensor switch, and an alarm element. The vibration sensor is signal-connected to the controller, the controller is control-connected to the alarm element, the sensor switch is connected in series with the alarm element, and a trigger element is provided on the side of the latch. When the latch is in the locked state, the trigger element is opposite to the sensor switch, and the sensor switch is turned on.

[0005] In this scheme, the induction switch is turned on when the trigger is opposite to the induction switch, and turned off when the trigger is misaligned with the induction switch. The circuit of the alarm device is controlled by the rotation of the lock tongue. The controller controls the alarm device to act based on the vibration signal, so as to realize the alarm and anti-theft function.

[0006] Preferably, the alarm module further includes a battery and a start button, wherein the start button connects the battery and the alarm element.

[0007] In this scheme, when the sensor switch is turned on and the start button is pressed, the alarm circuit is turned on, and the alarm function is selectively activated.

[0008] Preferably, the alarm device includes a buzzer, an alarm light, and a vibrator.

[0009] This solution combines sound, light, and vibration to enrich the alarm methods.

[0010] Preferably, when the latch is in the locked state, the lower part abuts against the lower part of the locking groove, and when the latch is in the unlocked state, the lower part abuts against the upper part of the lifting surface.

[0011] In this scheme, when the lock tongue is in the locked state, the lower part of the lock tongue abuts against the lower part of the locking groove to lock, the sensor switch is turned on, and the alarm circuit is turned on. When the lock tongue is rotated to switch to the unlocked state, the lower part of the lock tongue abuts against the higher part of the lifting surface, the sensor switch is turned off, and the alarm circuit is turned off.

[0012] Preferably, the lower part is provided with left and right clamping parts, and the lower side of the upper part abuts against the left and right clamping parts.

[0013] In this design, the left and right clamping parts abut against the lower side of the upper part, which can guide the relative movement of the upper and lower parts of the latch and ensure the overall stable rotation of the latch.

[0014] Preferably, the locking groove further includes a groove wall, and the lower end of the lower part has a side wall corresponding to the groove wall. When the locking tongue is in the locked state, the groove wall and the side wall are opposite to each other.

[0015] In this design, when the locking tongue is in the locked state, the groove wall and side wall work together to restrict the sliding of the movable rod relative to the fixed rod.

[0016] Preferably, the fixed rod is provided with a first hook, and the movable rod is provided with a second hook, the first hook cooperating with the second hook.

[0017] In this scheme, the first hook and the second hook work together to limit the steering wheel, either by setting them in opposite directions or in the opposite direction.

[0018] Preferably, the inductive switch is a Hall switch, and the trigger is a magnet.

[0019] In this scheme, a magnet is brought close to the Hall switch to turn it on.

[0020] The beneficial effects of this utility model are that it adds alarm and anti-theft functions by linking the lock tongue rotation action with the alarm circuit's on / off state. Normal unlocking will not trigger the alarm, and the controller controls the alarm component to operate based on vibration signals, thus achieving the alarm and anti-theft function. Therefore, this utility model has substantial features and progress compared to the prior art. Attached Figure Description

[0021] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the locking component in this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the lower part of the locking tongue in this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the locking groove in this utility model.

[0026] In the diagram: 1. Fixed rod; 2. Locking assembly; 3. Locking tongue; 4. Upper part; 5. Lower part; 6. Lifting surface; 7. Start button; 8. Left and right clamping parts; 9. Inclined surface; 10. First hook; 11. Second hook; 12. Alarm module; 13. Movable rod; 14. Trigger; 15. Groove wall; 16. Locking groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0030] See appendix Figure 1-4In this embodiment, a steering wheel lock with an alarm function includes a fixed rod 1 and a movable rod 13. The fixed rod 1 is provided with a locking assembly 2, which includes a locking tongue 3. The locking tongue 3 has a locked state and an unlocked state, and can rotate to switch between the locked and unlocked states. The locking tongue 3 includes an upper part 4 and a lower part 5, which are connected by an elastic element. A left and right clamping part 8 is provided above the lower part 5, and the lower side of the upper part 4 is connected to the left and right clamping part 8. The holding part 8 abuts against the movable rod 13, which is slidably disposed within the fixed rod 1. The movable rod 13 is provided with a plurality of locking grooves 16 corresponding to the lower part 5. The locking groove 16 includes an inclined lifting surface 6. The higher part of the lifting surface 6 communicates with the surface of the movable rod 13. The lower end of the lower part 5 is eccentrically disposed and moves along the lifting surface 6. The fixed rod 1 is provided with a first hook 10, and the movable rod 13 is provided with a second hook 11. The first hook 10 and the second hook 11 cooperate with each other.

[0031] The fixed rod 1 is also equipped with an alarm module 12, which includes a battery, a start button 7, a vibration sensor, a controller, a sensor switch, and an alarm element. The vibration sensor is connected to the controller via a signal connection, and the controller is connected to the alarm element via a control connection. The sensor switch is connected in series with the alarm element. The side of the latch 3 is provided with a trigger element 14. When the latch 3 is in the locked state, the trigger element 14 is opposite to the sensor switch and the sensor switch is turned on. The start button 7 connects the battery and the alarm element. The alarm element includes a buzzer, an alarm light, and a vibrator. The sensor switch is a Hall switch, and the trigger element 14 is a magnet.

[0032] In this embodiment, the lower end of the lower part 5 of the latch 3 is eccentric, allowing it to move along the inclined lifting surface 6 as the lower part 5 of the latch 3 rotates. Because the upper part 4 and the lower part 5 are connected by an elastic element, the upper part 4 and the lower part 5 will move closer or further apart, achieving the effect of the latch 3 extending into and exiting the locking groove 16. Since the higher part of the lifting surface 6 is connected to the surface of the movable rod 13, pulling the movable rod 13 will allow the lower end of the lower part 5 of the latch 3, which is in contact with the higher part of the lifting surface 6, to enter the next locking groove 16 via the higher part of the lifting surface 6 and the surface of the movable rod 13. When the latch 3 is in the locked state, the induction switch is opposite to the trigger 14, and the induction switch is turned on. When the start button 7 is pressed, the alarm is powered on. When the bolt 3 rotates to the unlocked state, the sensor switch and the trigger 14 are disconnected, the sensor switch is turned off, and the alarm is de-powered. The buzzer, alarm light, and vibrator can be selected or all of them can be set. The vibration sensor detects the vibration frequency and sends a signal when it is too high; it can also detect the amplitude. The maximum rotation angle of the bolt 3 is not limited in the unlocked state, as long as the sensor switch is off. A timer can also be set to avoid excessive power consumption during prolonged alarms. The trigger 14 can be located at the upper part 4 or the lower part 5. The bolt rotation angle is 60-200 degrees. The controller is an MCU.

[0033] In other alternative embodiments, the upper part 4 and the lower part 5 of the latch 3 can only abut on one side, and the entire assembly is limited by the receiving cavity; the inductive switch can also be a push switch, and the trigger 14 is a protrusion that abuts against the push switch to make the push switch conduct.

[0034] See appendix Figure 2-4 When the latch 3 is in the locked state, the lower part 5 abuts against the lower part of the locking groove 16. When the latch 3 is in the unlocked state, the lower part 5 abuts against the upper part of the lifting surface 6. The locking groove 16 also includes a groove wall 15. The lower end of the lower part 5 has a side wall corresponding to the groove wall 15. When the latch 3 is in the locked state, the groove wall 15 is opposite to the side wall.

[0035] In this embodiment, when the locking tongue 3 is in the locked state, the lower part 5 abuts against the lower part of the locking groove 16, and the alarm circuit is turned on. When the locking tongue 3 rotates to switch to the unlocked state, the lower part 5 abuts against the upper part of the lifting surface 6, and the alarm circuit is turned off. The lower end of the lower part 5 is also provided with an inclined surface 9 due to eccentricity. The inclined surface 9 cooperates with the lifting surface 6 to achieve bidirectional limiting, and the top of the groove wall 15 can also move along the inclined surface 9 to achieve bidirectional movement.

[0036] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.

Claims

1. A steering wheel lock with an alarm function, comprising: A fixed rod (1) is provided with a locking assembly (2). The locking assembly (2) includes a locking tongue (3). The locking tongue (3) has a locked state and an unlocked state. The locking tongue (3) rotates to switch between the locked state and the unlocked state. The locking tongue (3) includes an upper part (4) and a lower part (5). The upper part (4) and the lower part (5) are connected by an elastic member. The side of the upper part (4) abuts against the side of the lower part (5). The movable rod (13) is slidably disposed within the fixed rod (1). The movable rod (13) is provided with a plurality of locking grooves (16) corresponding to the lower part (5). The locking groove (16) includes an inclined lifting surface (6). The upper part of the lifting surface (6) is connected to the surface of the movable rod (13). The lower end of the lower part (5) is eccentrically disposed and moves along the lifting surface (6). Its features are: The fixed rod (1) is also provided with an alarm module (12). The alarm module (12) includes a vibration sensor, a controller, a sensor switch and an alarm component. The vibration sensor is connected to the controller via a signal. The controller is connected to the alarm component via a control connection. The sensor switch is connected in series with the alarm component. The side of the latch (3) is provided with a trigger (14). When the latch (3) is in the locked state, the trigger (14) is opposite to the sensor switch and the sensor switch is turned on.

2. A steering wheel lock with alarm function as described in claim 1, characterized in that: The alarm module (12) also includes a battery and a start button (7), the start button (7) connecting the battery and the alarm device.

3. A steering wheel lock with alarm function as described in claim 1, characterized in that: The alarm components include a buzzer, an alarm light, and a vibrator.

4. A steering wheel lock with alarm function as described in claim 1, characterized in that: When the latch (3) is in the locked state, the lower part (5) abuts against the lower part of the locking groove (16), and when the latch (3) is in the unlocked state, the lower part (5) abuts against the upper part of the lifting surface (6).

5. A steering wheel lock with an alarm function as described in claim 1, characterized in that: The lower part (5) is provided with left and right clamping parts (8) above it, and the lower side of the upper part (4) abuts against the left and right clamping parts (8).

6. A steering wheel lock with an alarm function as described in claim 4, characterized in that: The locking groove (16) also includes a groove wall (15), and the lower part (5) has a side wall corresponding to the groove wall (15) at its lower end. When the locking tongue (3) is in the locked state, the groove wall (15) is opposite to the side wall.

7. A steering wheel lock with alarm function as described in claim 1, characterized in that: The fixed rod (1) is provided with a first hook (10), and the movable rod (13) is provided with a second hook (11). The first hook (10) and the second hook (11) cooperate with each other.

8. A steering wheel lock with an alarm function as described in claim 1, characterized in that: The inductive switch is a Hall switch, and the trigger (14) is a magnet.

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