Drunk driving prevention device for motor vehicle

Abstract

The invention discloses a motor vehicle drunk driving prevention device which comprises an embedded fixing structure, an alcohol alarm, a motor assembly, an ignition device, a closed ignition mechanism and a control system.The closed ignition mechanism is arranged on one side of the automobile ignition device and fixed in a central control shell of an automobile through the embedded fixing structure; the alcohol concentration in air is detected through an alcohol alarm and an alcohol sensing module, when it is detected that the alcohol concentration exceeds the standard, a generator assembly is touched to control a closed ignition mechanism to close a closed ignition device, the closed ignition device cannot be ignited and started, and therefore the drunk driving prevention effect is achieved; therefore, the appearance of the central control shell is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile safety, and in particular to a motor vehicle anti-drunk driving device. Background Art

[0002] An anti-drunk driving device is a device designed to prevent drivers from driving after drinking. These devices usually use various technologies, such as alcohol detection, gas analysis, sensors and control systems, to detect and prevent alcohol from entering the vehicle's engine system. If the detected alcohol concentration exceeds the safety standard, the device will prevent the vehicle from starting or restrict the operation of the vehicle. These devices can be implemented in various forms, such as mechanical locks, electronic locks, control circuits, etc. Compared with control circuits, electronic locks have a wider range of applications and are more convenient to disassemble and assemble.

[0003] For example, a new type of automobile anti-drunk driving device (publication number: CN213261968U, publication date: 2021-05-25), includes a steering wheel, an ignition lock arranged on a console, an alcohol sensor, and two support plates arranged on the console; an ignition lock switch is arranged above the ignition lock; a fixed ring is arranged above the ignition lock, and the inner hole of the fixed ring is arranged corresponding to the lock hole of the ignition lock; the driven gear is provided with a circular through hole, which is rotatably connected to the fixed ring; five strip grooves are provided on the driven gear; the first end of each rotating blade is hinged to the fixed ring, and a protrusion is provided below the second end, and each protrusion is arranged in the strip groove; one end of the rotating shaft is rotatably connected to the console, and the other end is connected to the worm gear and the driving gear in sequence; the driving gear is meshed with the driven gear; the motor is arranged on the outside of one side support plate; one end of the worm is transmission-connected to the motor; the other end is rotatably connected to the other side support plate; the worm is meshed with the worm wheel; the alcohol sensor is electrically connected to the motor through a controller.

[0004] The device is equipped with an alcohol sensor. When it detects that the alcohol concentration in the air reaches a threshold, the controller controls the motor to drive the worm, worm wheel, and driving gear to rotate. The circle surrounded by the rotating blades blocks the inner hole of the fixed ring, making it impossible for the key to be inserted into the ignition lock hole under the fixed ring, thereby automatically closing the ignition lock switch and effectively preventing drunk driving.

[0005] However, how to fix the device above the ignition lock and how to ensure that the ignition lock switch and the alcohol sensor can be stably located on the console when the car is running are areas that still need to be improved. In addition, the use of an external anti-drunk driving device will make the position of the ignition device in the car interior appear very abrupt, which makes the ignition lock switch occupy a larger space and places higher requirements on the adaptability of the car's ignition lock position. Summary of the invention

[0006] In view of the technical deficiencies in the background art, the present invention proposes a drunk driving prevention device for motor vehicles, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows: A drunk driving prevention device for motor vehicles includes an embedded fixing structure, an alcohol alarm, a motor assembly, an ignition device, a closing ignition mechanism, and a control system; The embedded fixing structure includes a fixing bracket and clamping structures arranged on both sides of the fixing bracket. The fixing bracket is a hollow cylindrical structure, and a first opening for accommodating the alcohol alarm is provided at the top end of the fixing bracket. A second opening for accommodating the motor assembly is provided at the bottom end of the fixing bracket. A control member for driving the closing ignition structure is provided at the output end of the motor assembly. The control system is arranged inside the fixing bracket; The closing ignition mechanism includes a first arc-shaped ring and a second arc-shaped ring that are clamped around the outer edge of the ignition device. The ends of the first arc-shaped ring and the second arc-shaped ring are in contact. One end where the first arc-shaped ring and the second arc-shaped ring are in contact is provided with an inclined cut, and an elastic member is provided at the other end where the first arc-shaped ring and the second arc-shaped ring are in contact; The ignition device includes a device housing, an ignition slider, a starting slider, and a reset device. The device housing is a hollow cylindrical structure. The ignition slider is arranged at the top end of the device housing. The starting slider is arranged at the bottom end of the device housing. The reset device is arranged between the starting slider and the ignition slider. The closing ignition mechanism is clamped around between the ignition slider and the starting slider.

[0007] As an improvement to the above solution, the fixing bracket and the clamping structures on both sides are integrally injection-molded. The top end of the fixing bracket is provided with a skirt that extends outward in a ring shape. The clamping structure includes a clamping strip that extends vertically downward and a clamping block that extends outward at the end of the clamping strip. The clamping strip extends downward in circumferential alignment with the skirt.

[0008] As an improvement to the above solution, a first through groove is provided at the axial center position of the fixing bracket. The two ends of the first through groove are respectively provided with a first opening and a second opening. The first through groove is axially aligned with the first opening and the second opening. The diameter sizes of the first opening and the second opening are larger than the diameter size of the first through groove.

[0009] As an improvement to the above solution, a vertical sliding groove is provided on the side of the fixing bracket facing the ignition device. A lifting slider is arranged in the sliding groove. The lifting slider slides along the length direction of the sliding groove. The bottom end of the lifting slider is a hemisphere; A first spring is sleeved on the outer surface of the lifting slider. One end of the first spring abuts against the top end of the sliding groove, and the other end abuts against the bottom end of the lifting slider. An extension portion extending outward is provided on the side of the lifting slider, and the extension portion extends to the oblique notch positions of the first arc-shaped ring and the second arc-shaped ring.

[0010] As an improvement to the above solution, a circumferential sliding groove communicating with the bottom of the sliding groove is provided on the inner surface of the fixed bracket corresponding to the bottom of the sliding groove. The output end of the motor assembly is aligned with the horizontal height of the circumferential sliding groove. The control member is a sector-shaped sliding member. The end of the control member is aligned with the output end of the motor assembly. The arc-shaped edge of the control member is adapted to the circumferential sliding groove, and slopes are provided at both ends of the arc-shaped edge of the control member.

[0011] As an improvement to the above solution, an annular clamping groove is provided on the outer surface of the device housing. The first arc-shaped ring and the second arc-shaped ring are clamped in the annular clamping groove in a pincer shape. A connecting column structure fixed to the elastic member is provided on one side of the device housing away from the fixed bracket. One end of the first arc-shaped ring and the second arc-shaped ring is hinged to the connecting column structure, and the ends facing the fixed bracket are in contact with each other.

[0012] As an improvement to the above solution, a first slot and a second slot are provided on one side of the annular clamping groove close to the fixed bracket. The first slot corresponds to the inner surface of the first arc-shaped ring, and the second slot corresponds to the inner surface of the second arc-shaped ring; A first stop block extending into the device housing is provided on the inner surface of the first arc-shaped ring corresponding to the position of the first slot. A second stop block extending into the device housing is provided on the inner surface of the second arc-shaped ring corresponding to the position of the second slot.

[0013] As an improvement to the above solution, a second through groove is provided at the axial center position of the device housing. A starting slider is provided at the bottom end of the second through groove, and an ignition slider is provided at the top end of the second through groove.

[0014] As an improvement to the above solution, the control system includes a main control module, a battery and an alcohol sensing module. The alcohol sensing module is arranged in the steering wheel. The alcohol alarm is electrically connected to the main control module. The main control module is electrically connected to the motor assembly and the alcohol sensing module. The battery is electrically connected to the motor assembly, the alcohol alarm and the main control module.

[0015] The beneficial effects of the present invention are as follows: The closing ignition mechanism of the present invention is arranged on one side of the vehicle ignition device and is fixed in the central control housing of the vehicle through an embedded fixing structure. An alcohol alarm and an alcohol sensing module are used to detect the alcohol concentration in the air. When the detected alcohol concentration exceeds the standard, the motor assembly will be triggered to control the closing ignition mechanism to close the ignition device, making it impossible to start the ignition, thus achieving the effect of preventing drunk driving. The present invention is fixed under the central control housing by means of an embedded fixing structure, thus not affecting the appearance of the central control housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of the anti-drunk driving ignition device of the present invention.

[0017] Figure 2 FIG. is a schematic diagram of the embedded fixing structure of the present invention.

[0018] Figure 3 FIG. is a schematic structural diagram of the ignition device of the present invention.

[0019] Figure 4 FIG. is a schematic structural diagram of the closing ignition mechanism of the present invention.

[0020] Figure 5 FIG. is a schematic internal structure diagram of the embedded fixing structure of the present invention Figure 1 .

[0021] Figure 6 FIG. is a schematic internal structure diagram of the embedded fixing structure of the present invention Figure 2 .

[0022] Figure 7 FIG. is a schematic internal structure diagram of the ignition device of the present invention.

[0023] Figure 8 FIG. is a schematic diagram of the closed state of the closing ignition mechanism of the present invention.

[0024] Figure 9 FIG. is a schematic diagram of the open state of the closing ignition mechanism of the present invention.

[0025] Wherein: the embedded fixing structure 1, the fixing bracket 11, the first through groove 111, the first opening 112, the second opening 113, the sliding groove 12, the lifting slider 13, the first spring 14, the extending portion 141, the circumferential sliding groove 15, the skirt 16, the alcohol alarm 2, the motor assembly 3, the control member 31, the slope 32, the ignition device 4, the device housing 41, the second through groove 411, the annular clamping groove 42, the first slotted opening 421, the second slotted opening 422, the ignition slider 43, the starting slider 44, the closing ignition mechanism 5, the first arc ring 51, the second arc ring 52, the first stop block 53, the second stop block 54, the bevel cut 55, the clamping structure 6, the clamping bar 61, the clamping block 62. DETAILED DESCRIPTION OF THE INVENTION

[0026] The embodiments of the present invention will be described below in conjunction with the accompanying drawings and related embodiments. The embodiments of the present invention are not limited to the following embodiments, and the present invention relates to relevant necessary components in the technical field, which should be regarded as well-known technologies in the technical field and can be known and mastered by those skilled in the technical field.

[0027] The present invention discloses a motor vehicle anti-drunk driving device, which includes an embedded fixing structure 1, an alcohol alarm 2, a motor assembly 3, an ignition device 4, a closing ignition mechanism 5 and a control system. The ignition device 4 and the closing ignition mechanism 5 are arranged adjacent to each other and are both embedded and fixed in the central control housing. The embedded fixing structure 1 is used to fix the closing ignition mechanism 5 in the central control housing. In the technical solution of the embedded fixing structure 1 of the present invention, the embedded fixing structure 1 includes a fixing bracket 11 and clamping structures 6 arranged on both sides of the fixing bracket 11. The clamping structures 6 clamp the fixing bracket 11 in the central control housing and expose the top end of the fixing bracket 11 on the surface of the central control housing, reducing the exposed volume of the closing ignition mechanism 5 at the position of the automotive central control housing and making it not too obtrusive.

[0028] Further, in the above solution, the fixing bracket 11 and the clamping structures 6 on both sides are integrally injection-molded. The top end of the fixing bracket 11 is provided with a skirt 16 extending annularly outward. The clamping structure 6 includes a clamping bar 61 extending vertically downward and a clamping block 62 extending outward at the end of the clamping bar 61. The clamping bar 61 extends downward circumferentially aligned with the skirt 16. It should be noted that when installing the fixing bracket 11, a circular opening is formed in the side of the automotive central control housing adjacent to the ignition device 4, and the fixing bracket 11 is inserted into the central control housing. The skirt 16 fits against the inner edge of the circular opening. After the clamping bar 61 is inserted into the central control housing, the clamping block 62 at the end of the clamping bar 61 is clamped in the circular opening.

[0029] It should be noted that the fixing bracket 11 is a hollow cylindrical structure, and the top end of the fixing bracket 11 is provided with a first opening 112 for accommodating the alcohol alarm 2. The top end of the fixing bracket 11 is exposed on the automotive central control housing. The bottom end of the fixing bracket 11 is provided with a second opening 113 for accommodating the motor assembly 3. The output end of the motor assembly 3 is provided with a control member 31 for driving the closing ignition structure. The control system is arranged in the fixing bracket 11. Furthermore, in the above scheme, a first through slot 111 is provided at the axial position of the fixed bracket 11, and a first opening 112 and a second opening 113 are respectively provided at both ends of the first through slot 111, the first through slot 111 is aligned with the axial center of the first opening 112 and the second opening 113, and the diameter size of the first opening 112 and the second opening 113 is larger than the diameter size of the first through slot 111.

[0030] Furthermore, in the above scheme, the closed ignition mechanism 5 includes a first arcuate ring 51 and a second arcuate ring 52 which surround the outer edge of the ignition device 4 in a clamp shape, the ends of the first arcuate ring 51 and the second arcuate ring 52 are fitted together, one end of which the first arcuate ring 51 and the second arcuate ring 52 are fitted together is provided with an oblique cut 55, and the other end of which the first arcuate ring 51 and the second arcuate ring 52 are fitted together is provided with an elastic member, and the elastic member is a torsion spring or a spring sheet which can realize the first arcuate ring 51 and the second arcuate ring 52 being closed in a clamp shape; It should be noted that the closed ignition mechanism 5 is driven and controlled by the motor assembly 3 in the fixed bracket 11, and the first arc circle 51 and the second arc circle 52 are fitted to form a circular ring, wherein one end of the first arc circle 51 and the second arc circle 52 is hinged, and the other end of the first arc circle 51 and the second arc circle 52 is closed in a clamp shape through an elastic member. The clamp-shaped closure of the first arc circle 51 and the second arc circle 52 makes it impossible for the ignition device 4 to achieve downward ignition, and the closed ends of the first arc circle 51 and the second arc circle 52 are provided with an oblique cut 55. When alcohol gas is not detected, the motor assembly 3 drives the control component 31 to rotate and lift the lifting slider 13, thereby opening the closed ends of the first arc circle 51 and the second arc circle 52, so that the ignition device 4 can ignite normally.

[0031] In the technical solution of the closed ignition mechanism 5 of the present invention, the motor assembly 3 drives the control member 31 to rotate and lift the lifting slider 13, so as to open the closed ends of the first arc circle 51 and the second arc circle 52; specifically, the fixed bracket 11 is provided with a vertical sliding groove 12 facing the side of the ignition device 4, and a lifting slider 13 is provided in the sliding groove 12. Under the drive of the motor assembly 3, the lifting slider 13 slides along the length direction of the sliding groove 12. When the lifting slider 13 is at the bottom of the sliding groove 12, the first arc circle 51 and the second arc circle 52 are closed in a clamp shape to lock the ignition device 4. When the lifting slider 13 is at the top of the sliding groove 12, the first arc circle 51 and the second arc circle 52 are opened in a clamp shape, and the ignition device 4 can work normally at this time; It should be noted that the bottom end of the lifting slider 13 is a hemisphere. The spherical surface of the hemisphere is used to reduce the friction between the control member 31 and the lifting slider 13, facilitating the control member 31 to lift the lifting slider 13. In another embodiment, a sphere is provided at the bottom end of the lifting slider 13, and the control member 31 lifts the sphere to lift the lifting slider 13, which also has the effect of reducing the frictional force between the control member 31 and the lifting slider 13.

[0032] Furthermore, in the above solution, a first spring 14 is sleeved on the outer surface of the lifting slider 13. The function of the first spring 14 is to push the lifting slider 13 to complete reset. One end of the first spring 14 abuts against the top end of the sliding groove 12, and the other end abuts against the bottom end of the lifting slider 13. An extension portion 141 extending outward is provided on the side of the lifting slider 13. The extension portion 141 extends to the inclined notch 55 position of the first arc ring 51 and the second arc ring 52. When the lifting slider 13 moves towards the top end of the sliding groove 12, the extension portion 141 is inserted into the inclined notch 55 position of the first arc ring 51 and the second arc ring 52 from bottom to top, thereby separating the first arc ring 51 and the second arc ring 52 towards both sides.

[0033] Specifically, in the above technical solution, a circumferential sliding groove 15 communicating with the bottom of the sliding groove 12 is provided on the inner surface of the fixed bracket 11. The output end of the motor assembly 3 is aligned with the horizontal height of the circumferential sliding groove 15. The control member 31 is a fan-shaped sliding member. The end of the control member 31 is aligned with the output end of the motor assembly 3. The arc-shaped edge of the control member 31 is adapted to the circumferential sliding groove 15. Both ends of the arc-shaped edge of the control member 31 are provided with slopes 32; It should be noted that the motor assembly 3 rotates the sliding member under the control of the control system, so that the sliding member slides along the circumferential sliding groove 15. When sliding to the position of the sliding groove 12, the slope 32 is used to lift the lifting slider 13 upward to complete the unlocking of the ignition device 4; In one of the embodiments, the control member 31 is a fan-shaped sliding member. The length of the arc-shaped edge of the control member 31 affects the detection duration of the alcohol sensing module. For example, when the included angle of the control member 31 is 30°, during the stroke of the motor assembly 3 controlling the control member 31 to rotate one week, the first arc ring 51 and the second arc ring 52 are in a locked state in the remaining 330° space of the circumferential sliding groove 15. During the process of the motor assembly 3 controlling the control member to slowly rotate and unlock, the content of the alcohol gas is continuously detected whether it exceeds the threshold. The advantage is that it can effectively reduce the misjudgment situation, and the disadvantage is that the unlocking duration of the ignition device 4 is increased.

[0034] Furthermore, in the above scheme, an annular groove 42 is provided on the outer surface of the device shell 41, and the first arc ring 51 and the second arc ring 52 are clamp-connected in the annular groove 42, and a connecting column structure fixed to the elastic member is provided on the side of the device shell 41 away from the fixed bracket 11, and one end of the first arc ring 51 and the second arc ring 52 are hinged to the connecting column structure, and the ends facing the fixed bracket 11 are fitted together.

[0035] Further, in the above solution, the annular groove 42 is provided with a first slot 421 and a second slot 422 on one side close to the fixing bracket 11, the first slot 421 corresponds to the inner surface of the first arc-shaped ring 51, and the second slot 422 corresponds to the inner surface of the second arc-shaped ring 52; It should be noted that a first stopper 53 extending toward the inside of the device housing 41 is provided on the inner surface of the first arc ring 51 at a position corresponding to the first groove 421, and a second stopper 54 extending toward the inside of the device housing 41 is provided on the inner surface of the second arc ring 52 at a position corresponding to the second groove 422. Under the action of the elastic member, after the closed ends of the first arc ring 51 and the second arc ring 52 are fitted in a clamp shape, the first stopper 53 and the second stopper 54 extend from the first groove 421 and the second groove 422 into the ignition slider 43 and the starting slider 44 respectively. After the closed ends of the first arc ring 51 and the second arc ring 52 are stretched open by the extension portion 141, the first stopper 53 disengages from the first groove 421, and the second stopper 54 disengages from the second groove 422, so that the ignition slider 43 can smoothly fit the starting slider 44 to complete the ignition.

[0036] In the technical solution of the ignition device 4 of the present invention, the ignition device 4 includes a device housing 41, an ignition slider 43, a start slider 44 and a reset device. The device housing 41 is a hollow cylindrical structure. The ignition slider 43 is arranged at the top of the device housing 41. The start slider 44 is arranged at the bottom of the device housing 41. The reset device is arranged between the start slider 44 and the ignition slider 43. The closed ignition mechanism 5 is clamp-shaped and surrounds the ignition slider 43 and the start slider 44. It should be noted that the reset device structure can actually be set up using the reset device structure in the existing automobile push ignition device technology. The reset device is selected to be able to meet the function of controlling the reset state of the ignition slider required by the present invention. Generally speaking, the reset structure in most existing automobile push ignition devices can meet this requirement, so its specific structure and basic control principle will not be described in detail here.

[0037] Further, in the above solution, a second through groove 411 is provided at the axial center position of the device housing 41. A starting slider 44 is provided at the bottom end of the second through groove 411, and an ignition slider 43 is provided at the top end of the second through groove 411.

[0038] Further, in the above solution, the control system includes a main control module, a battery, and an alcohol sensing module. The alcohol sensing module is arranged in the steering wheel. The alcohol alarm 2 is electrically connected to the main control module. The main control module is electrically connected to the motor assembly 3 and the alcohol sensing module. The battery is electrically connected to the motor assembly 3, the alcohol alarm 2, and the main control module.

[0039] The present invention adopts the method of an electronic lock to close and lock from the ignition lock to achieve the purpose of preventing drunk driving. Most of the existing anti-drunk driving devices start from the control circuit, causing an open circuit between the ignition switch and the igniter. Compared with the traditional anti-drunk driving devices, the present invention adopts the form of an external lock, and its installation method is more convenient and does not require re-arranging the control circuit of the igniter.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A device for preventing drunk driving of a motor vehicle, characterized in that, It includes an embedded fixed structure (1), an alcohol alarm (2), a motor assembly (3), an ignition device (4), a closing ignition mechanism (5), and a control system; The embedded fixed structure (1) includes a fixed bracket (11) and clamping structures (6) arranged on both sides of the fixed bracket (11). The fixed bracket (11) is a hollow cylindrical structure, and a first opening (112) for accommodating the alcohol alarm (2) is provided at the top end of the fixed bracket (11). A second opening (113) for accommodating the motor assembly (3) is provided at the bottom end of the fixed bracket (11). A control member (31) for driving the closing ignition structure is provided at the output end of the motor assembly (3). The control system is arranged inside the fixed bracket (11); The closing ignition mechanism (5) includes a first arc ring (51) and a second arc ring (52) that are clamped around the outer edge of the ignition device (4). The ends of the first arc ring (51) and the second arc ring (52) are in contact. One end where the first arc ring (51) and the second arc ring (52) are in contact is provided with an inclined cut (55), and an elastic member is provided at the other end where the first arc ring (51) and the second arc ring (52) are in contact; The ignition device (4) includes a device housing (41), an ignition slider (43), a starting slider (44), and a reset device. The device housing (41) is a hollow cylindrical structure. The ignition slider (43) is arranged at the top end of the device housing (41). The starting slider (44) is arranged at the bottom end of the device housing (41). The reset device is arranged between the starting slider (44) and the ignition slider (43). The closing ignition mechanism (5) is clamped around between the ignition slider (43) and the starting slider (44).

2. The motor vehicle anti-drunk driving device according to claim 1, characterized in that, The fixed bracket (11) and the clamping structures (6) on both sides are integrally injection-molded. A skirt (16) extending outward in a ring shape is provided at the top end of the fixed bracket (11). The clamping structure (6) includes a clamping bar (61) extending vertically downward and a clamping block (62) arranged at the end of the clamping bar (61) and extending outward. The clamping bar (61) extends downward in circumferential alignment with the skirt (16).

3. The motor vehicle anti-drunk driving device according to claim 2, characterized in that A first through groove (111) is provided at the axial center position of the fixed bracket (11). The two ends of the first through groove (111) are respectively provided with a first opening (112) and a second opening (113). The first through groove (111) is axially aligned with the first opening (112) and the second opening (113). The diameter sizes of the first opening (112) and the second opening (113) are larger than the diameter size of the first through groove (111).

4. The anti-drunk driving device for a motor vehicle according to claim 1, wherein, A vertical sliding groove (12) is provided on the side of the fixed bracket (11) facing the ignition device (4). A lifting slider (13) is arranged in the sliding groove (12). The lifting slider (13) slides along the length direction of the sliding groove (12). The bottom end of the lifting slider (13) is a hemisphere; A first spring (14) is sleeved on the outer surface of the lifting slider (13). One end of the first spring (14) abuts against the top end of the sliding groove (12), and the other end abuts against the bottom end of the lifting slider (13). An extension part (141) extending outward is arranged on the side of the lifting slider (13), and the extension part (141) extends to the position of the inclined notch (55) of the first arc ring (51) and the second arc ring (52).

5. The motor vehicle anti-drunk driving device according to claim 4, characterized in that A circumferential sliding groove (15) communicating with the bottom of the sliding groove (12) is arranged on the inner surface of the fixed bracket (11) corresponding to the bottom of the sliding groove (12). The output end of the motor assembly (3) is aligned with the horizontal height of the circumferential sliding groove (15). The control part (31) is a fan-shaped sliding part. The end of the control part (31) is aligned with the output end of the motor assembly (3). The arc-shaped edge of the control part (31) is adapted to the circumferential sliding groove (15), and slopes (32) are arranged at both ends of the arc-shaped edge of the control part (31).

6. The anti-drunk driving device for a motor vehicle according to claim 1, wherein, An annular clamping groove (42) is arranged on the outer surface of the device housing (41). The first arc ring (51) and the second arc ring (52) are clamped in the annular clamping groove (42) in a pincer shape. A connecting column structure fixed to an elastic member is arranged on one side of the device housing (41) away from the fixed bracket (11). One ends of the first arc ring (51) and the second arc ring (52) are hinged to the connecting column structure, and the ends facing the fixed bracket (11) are in contact with each other.

7. The motor vehicle anti-drunk driving device according to claim 6, characterized in that, A first slot (421) and a second slot (422) are arranged on one side of the annular clamping groove (42) close to the fixed bracket (11). The first slot (421) corresponds to the inner surface of the first arc ring (51), and the second slot (422) corresponds to the inner surface of the second arc ring (52). A first stop block (53) extending into the device housing (41) is arranged on the inner surface of the first arc ring (51) corresponding to the position of the first slot (421). A second stop block (54) extending into the device housing (41) is arranged on the inner surface of the second arc ring (52) corresponding to the position of the second slot (422).

8. The anti-drunk driving device for a motor vehicle according to claim 1, characterized in that, A second through groove (411) is arranged at the axial center position of the device housing (41). A starting slider (44) is arranged at the bottom end of the second through groove (411), and an ignition slider (43) is arranged at the top end of the second through groove (411).

9. The motor vehicle anti-drunk driving device according to claim 1, wherein, The control system includes a main control module, a battery and an alcohol sensing module. The alcohol sensing module is arranged in the steering wheel. The alcohol alarm (2) is electrically connected to the main control module. The main control module is electrically connected to the motor assembly (3) and the alcohol sensing module. The battery is electrically connected to the motor assembly (3), the alcohol alarm (2) and the main control module.

Images