CN216268964U

CN216268964U - Warning device for vehicle

Info

Publication number: CN216268964U
Application number: CN202122842075.2U
Authority: CN
Inventors: 李明波; 缑晓军; 张庚
Original assignee: Shanghai Volvo Automobile Research And Development Co ltd
Current assignee: Shanghai Volvo Automobile Research And Development Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-12
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a vehicle warning device which is configured to be switched between a folding state and a unfolding state, comprising: a housing defining a longitudinal axis and an internal cavity extending along the longitudinal axis; first and second wheels configured for movement of the vehicular warning device over a ground surface, axial centerlines of the first and second wheels each being concentrically arranged in a direction parallel to the longitudinal axis; a warning frame configured to fold in a stowed state to be received in the interior cavity and to extend out of the interior cavity in a deployed state to serve a warning function; and a support leg configured to be suspended from the housing in a retracted state so as not to interfere with movement of the vehicular warning device on the ground, and to abut against the ground in a deployed state so as to support the vehicular warning device that has been moved to a target position. The warning device for the vehicle provided by the utility model has a compact structure and can be flexibly moved, folded and unfolded.

Description

Warning device for vehicle

Technical Field

The utility model relates to the field of road traffic safety, in particular to a vehicle warning device.

Background

Based on the regulations of road traffic safety laws, it is necessary to store a triangle warning board in a vehicle, such as a commercial automobile, to put the triangle warning board at a target position for warning surrounding vehicles when the vehicle has a fault, for example, the target position is located at a distance of 50 meters to 150 meters from the rear of the faulty vehicle. Currently, most types of triangular warning boards are configured to have a simple mechanical structure, and thus, it is required that the relevant person (e.g., a driver and a passenger) walks to a target location with the triangular warning board by himself, places the triangular warning board on the ground, and retrieves the triangular warning board to be restocked in the vehicle before the vehicle is removed. However, it is very unsafe for the relevant person to walk on the road section where the vehicle travels, especially on the expressway, and a secondary accident is easily caused. Meanwhile, most types of triangular warning boards cannot be folded due to too simple mechanical structures, and can occupy the storage space of a vehicle.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a warning device for a vehicle that is compact and flexible to move, stow, and deploy.

According to an aspect of the present invention, there is provided a warning device for a vehicle configured to be switchable between a stowed state and a deployed state, comprising: a housing defining a longitudinal axis and an internal cavity extending along the longitudinal axis; first and second wheels configured for movement of the vehicular warning device over a ground surface, axial centerlines of the first and second wheels each being concentrically arranged in a direction parallel to the longitudinal axis; a warning frame configured to fold in a stowed state to be received in the interior cavity and to extend out of the interior cavity in a deployed state to serve a warning function; and a support leg configured to be suspended from the housing in a retracted state so as not to interfere with movement of the vehicular warning device on the ground, and to abut against the ground in a deployed state so as to support the vehicular warning device that has been moved to a target position.

Optionally, the vehicle warning device has a center of gravity located below the axial centerlines of the first and second wheels relative to the ground.

Optionally, the warning device for a vehicle further includes: a first motor for driving the first wheel; a second motor for driving the second wheel; a gyroscope configured to sense the tilt angle and angular velocity of the moving vehicular warning device; an acceleration sensor configured to sense an acceleration of the moving vehicular warning device; and a controller configured to control a rotational direction and an acceleration of the first motor and the second motor, respectively, based on the tilt angle, the angular velocity, and the acceleration to maintain self-balancing of the moving vehicular warning device.

Optionally, the alert bracket includes a first link, a second link pivotably connected to the first link, and a third link pivotably connected to the second link and the housing, wherein a third motor is configured to drive the first link such that the first link, the second link, and the third link fold in a direction parallel to the longitudinal axis in a stowed state to be received in the interior cavity and extend from the interior cavity in a deployed state to form a triangular alert bracket.

Optionally, at least one of the first link, the second link, and the third link is provided with at least one of an LED lamp and a reflective cloth.

Optionally, the support feet comprise: a first support rod vertically connected to an output shaft by means of a first sleeve, the output shaft for driving the first support rod to rotate in a first direction; and the second support rod is vertically connected to the transmission shaft by means of a second sleeve, the transmission shaft is linked with the output shaft and is used for driving the second support rod to rotate along a second direction opposite to the first direction, wherein the fourth motor is configured to drive the output shaft, so that the first support rod and the second support rod are suspended by being attached to the bottom of the shell in a retracted state and rotate to be inclined relative to the bottom of the shell to be attached to the ground in a deployed state.

Optionally, the first sleeve extends through the housing bottom at a first angle relative to the housing bottom in a cross-section perpendicular to the longitudinal axis, and the second sleeve extends through the housing bottom at a second angle relative to the housing bottom in a cross-section perpendicular to the longitudinal axis, the first angle being arranged opposite the second angle, and the first angle and the second angle being equal in absolute value and greater than 90 °.

Optionally, the output shaft is integrally formed with or fixedly assembled with a first gear in the circumferential direction, the transmission shaft is integrally formed with or fixedly assembled with a second gear in the circumferential direction, and the first gear is meshed with the second gear so that the transmission shaft and the output shaft are linked.

Optionally, the first gear and the second gear are both straight toothed spur gears, and the meshing relationship between the first gear and the second gear is configured to be m₁×z₁+m₂×z₂> dX 2, wherein m₁Is the module of the first gear, z₁Number of teeth of first gear, m₂Is the module of the second gear, z₂Is the number of teeth of the second gear, and d is the spacing between the center of the first gear and the center of the second gear.

Optionally, the vehicular warning device further comprises at least one of an ultrasonic sensor configured to sense an obstacle, a GPS sensor configured to sense a position of the vehicular warning device, and a wireless receiver configured to wirelessly communicate with the client.

The vehicle warning device provided by the utility model has a compact structure, can realize self-balance of the moving vehicle warning device, the warning frame and the supporting legs are independently controlled to switch between a retracted state and an expanded state, and the flexibility of movement and use of the vehicle warning device is improved through various sensors and wireless receivers.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a perspective view of a vehicle warning device according to an embodiment of the present invention in a retracted state, in which a top portion of a housing of the vehicle warning device is removed.

Fig. 2 is another perspective view of the vehicular warning device of fig. 1 in a stowed state.

Fig. 3 is a perspective view of a warning device for a vehicle in a deployed state according to an embodiment of the present invention.

Fig. 4 is another perspective view of a warning device for a vehicle in a deployed state according to another embodiment of the present invention.

FIG. 5 is a detailed view in cross-section of a vehicular warning device in accordance with one embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The example vehicular warning device 10 is configured to be switchable between a stowed state and a deployed state. Referring to fig. 1 and 2, the warning device 10 is adapted to be stored in a vehicle in a stowed state or moved on the ground to a target location when the vehicle is malfunctioning, for example, a distance of 50 meters to 150 meters from the rear of the malfunctioning vehicle. Referring to fig. 3 and 4, the warning device 10 is adapted to rest at a target location in a deployed state and to serve as a striking warning. Some of the components of the warning device 10 may be electrically switched to different configurations in the stowed and deployed states, respectively.

A warning device 10 for a vehicle according to one embodiment of the present invention includes a housing sized to primarily determine the size of the warning device 10 in a stowed state, for example, the housing may include a first end 12 and a second end 14, a housing top 16 (shown in fig. 3) and a housing bottom 18 extending between the first end 12 and the second end 14 and opposing each other, and a first side 20 and a second side 22 (shown in fig. 5) extending between the housing top 16 and the housing bottom 18 and opposing each other, which together form a hollow cube to define a longitudinal axis and an interior cavity extending along the longitudinal axis for receiving most of the components of the warning device 10, thereby making the warning device 10 easier to hold by a human hand and easy to store in the vehicle. Alternatively, the housing may be shaped into other reasonable shapes, such as a hollow cylinder, etc.

The warning device 10 further comprises a first displacement mechanism and a second displacement mechanism cooperating with each other, as shown in fig. 1-4, the first displacement mechanism comprising a first wheel 24 mounted at the first end 12 outside the lumen, the second displacement mechanism comprising a second wheel 26 mounted at the second end 14 outside the lumen, the first wheel 24 and the second wheel 26 being configured for movement of the warning device 10 over a ground surface and visible to a user. Alternatively, the first wheel 24 may be mounted at the first end 12 in the cavity and the second wheel 26 may be mounted at the second end 14 in the cavity such that the first wheel 24 and the second wheel 26 are at least partially concealed in the cavity, in which case the housing bottom 18 is provided with respective openings such that the first wheel 24 and the second wheel 26 may pass through the respective openings to roll over the ground.

The first displacement mechanism is provided with a first motor 28 for driving the first wheel 24 and the second displacement mechanism is provided with a second motor 30 for driving the second wheel 26. For example, a first motor 28 is disposed in the interior cavity adjacent to the first wheel 24 such that a first output shaft of the first motor 28 is connected to the hub of the first wheel 24 to propel the first wheel 24, and a second motor 30 is disposed in the interior cavity adjacent to the second wheel 26 such that a second output shaft of the second motor 30 is connected to the hub of the second wheel 26 to propel the second wheel 26. The axial centerlines of the first and second displacement mechanisms, particularly the first and

second wheels

24, 26, are each concentrically arranged in a direction parallel to the longitudinal axis, and the first and second displacement mechanisms are also symmetrically arranged relative to a transverse centerline of the housing, wherein the transverse centerline extends perpendicular to the longitudinal axis in the direction of forward or reverse movement of the warning device 10.

Since the warning device 10 is provided with only the first and

second wheels

24, 26, the center of gravity of the vehicular warning device 10 will be located below the axial centerlines of the first and

second wheels

24, 26 with respect to the ground, so that the warning device 10 can maintain the attitude of the housing bottom 18 disposed horizontally to the ground due to gravity even in the absence of power.

The warning device 10 may further include a main control board 32 disposed at the first side 20 and/or the second side 22 in the interior cavity, the main control board 32 including: a gyroscope configured to sense the tilt angle and angular velocity of the moving warning device 10; an acceleration sensor configured to sense an acceleration of the moving warning device 10; and a controller configured to control the rotational direction and acceleration of the first motor 28 and the second motor 30, respectively, based on the tilt angle, the angular velocity, and the acceleration, whereby movement of the warning device 10 over the ground, including but not limited to forward, reverse, turn, and short stop of the warning device 10, may be accomplished by means of the first wheel 24 driven by the first motor 28 and the second wheel 26 driven by the second motor 30. For example, the warning device 10 advances when the first and second motors 30 rotate in the forward direction at the same speed, the warning device 10 retreats when the first and second motors 30 rotate in the reverse direction at the same speed, and the warning device 10 turns when one of the first and second motors 30 rotates in the forward direction and the other rotates in the reverse direction, and/or the rotational speeds of the first and second motors 30 are different. As another example, the warning device 10 may still be moved back and forth over a short distance during a short dwell period to maintain the balance of the moving warning device 10 (in the present invention, a short dwell is different from a rest). Accordingly, the first motor 28, the second motor 30, and the main control board 32 remain operational during movement of the warning device 10 such that the warning device 10 may achieve a self-balancing function.

Optionally, the warning device 10 may also include one or more ultrasonic sensors disposed, for example, at the first side 20 and/or the second side 22 to be exposed outside of the interior cavity, the ultrasonic sensors configured to sense an obstacle. For example, the ultrasonic sensor may emit an initial ultrasonic wave and receive a return ultrasonic wave reflected back due to an obstacle to generate an ultrasonic signal associated with the obstacle, and the controller is configured to determine the presence of the obstacle and the distance of the obstacle from the warning device 10 based on the ultrasonic signal, thereby adjusting the rotational direction and acceleration of the first motor 28 and the second motor 30, respectively, to change the moving path of the warning device 10 in time to avoid the obstacle. Alternatively, obstacles may also be sensed by means of other types of sensors.

Optionally, the warning device 10 may also include a GPS sensor located at a suitable location in the interior cavity, the GPS sensor being configured to sense the location of the warning device 10 for determining the distance of the moving warning device 10 from the rear of the faulty vehicle or other reference, the speed of movement, path of movement, etc. of the warning device 10. It will be appreciated that the position of the warning device 10 may also be sensed by means of other types of sensors.

The warning device 10 may further include a secondary battery 60 for supplying power to electrical components of the warning device 10 (including, but not limited to, the first motor 28, the second motor 30, and the main control board 32 that have been described and the third motor 40 and the fourth motor 50 that will be described) and a charging port for the secondary battery 60, so that when the warning device 10 is stored in the vehicle, the vehicle-mounted power supply can be electrically connected to the charging port via a charging cord to charge the secondary battery 60.

The warning device 10 also includes a warning stand configured to fold in a stowed condition for receipt in the interior cavity and to extend from the interior cavity in a deployed condition for warning purposes. For example, the warning stand includes: a first link 34, one end of the first link 34 being connected to a third output shaft of the third motor 40 to be driven by the third motor 40; a second link 36, one end of the second link 36 being pivotably connected to the other end of the first link 34; and a third link, one end of which is pivotally connected to the other end of the second link 36, the other end of which is pivotally connected to a transverse stud provided at the first side portion 20 or the second side portion 22 in the cavity, so that the first link 34, the second link 36, and the third link 38 can be folded in a direction parallel to the longitudinal axis in the stowed state, i.e. overlapped with each other to be received in the cavity, and when the warning device 10 is switched from the stowed state to the deployed state, the controller is configured to activate the third motor 40, so that the third output shaft drives the first link 34 to be rotationally lifted about the axis of the third output shaft, and then the second link 36 is lifted, and the third link 38 is also rotationally lifted about the axis of the transverse stud to finally form a triangular warning frame protruding from the cavity. For example, the length of the first link 34 is approximately equal to the length of the second link 36 plus the length of the third link 38. Accordingly, the housing top 16 is provided with a channel 39 that substantially conforms to the length of the first link 34 such that the first link 34, the second link 36, and the third link 38 can pass through the channel 39 unimpeded to protrude from the lumen or to be re-folded for receipt therein.

Optionally, an LED lamp is embedded in at least one of the first link 34, the second link 36, and the third link 38, and the controller is configured to turn on the LED lamp in case of weak external light to enhance the warning effect of the warning frame.

Optionally, at least one of the first link 34, the second link 36, and the third link 38 is provided with a flexible reflective fabric 42 (shown in fig. 4), and the reflective fabric 42 is folded along with the first link 34, the second link 36, and the third link 38 in a collapsed state to be received in the inner cavity, and is extended between the first link 34, the second link 36, and the third link 38 in an expanded state.

It will be appreciated that the warning stand may also be implemented by other elements, such as telescopic elements.

The warning device 10 further includes support legs configured to be suspended from the housing in a retracted state so as not to interfere with the self-balancing movement of the warning device 10 on the ground, and to abut against the ground in an extended state so as to support the warning device 10 that has been moved to a target position.

For example, referring to fig. 5, the support foot may include first and second support members that cooperate with one another. The first support assembly includes: a first support bar 52 disposed at the housing bottom 18 outside the interior cavity; a first sleeve 56 extending through the housing base 18 at a first angle relative to the housing base 18 in a cross-section perpendicular to the longitudinal axis, one end of the first sleeve 56 being connected to the one end of the first support strut 52; and a fourth motor 50 located in the inner cavity, optionally, a fourth output shaft of the fourth motor 50 is integrally formed with or fixedly fitted with a first gear 58 in a circumferential direction, and the other end of the first sleeve 56 is connected to an output end of the fourth output shaft so that the fourth output shaft is arranged perpendicular to the first support bar 52. For example, the one end of the first support rod 52 may be connected to the one end of the first sleeve 56 with the first support rod 52 perpendicular to the first sleeve 56, while the output end of the fourth output shaft is connected to the other end of the first sleeve 56, for example, in an interposed manner, such that the axis of the fourth output shaft is concentric with the axis of the first sleeve 56.

The second support assembly includes: a second support bar 44 disposed at the housing bottom 18 outside the interior cavity, the second support bar 44 having a length approximately equal to the length of the first support bar 52 (as shown in fig. 2), and one end of the second support bar 44 being aligned with the one end of the first support bar 52 in a direction parallel to the transverse centerline; a second sleeve 46 extending through the housing bottom 18 at a second angle relative to the housing bottom 18 in a cross-section perpendicular to the longitudinal axis, the first angle being arranged opposite to the second angle, optionally the first angle having an absolute value equal to the absolute value of the second angle and slightly greater than 90 °, one end of the second sleeve 46 being connected to said one end of the second support bar 44; and a transmission shaft 48 positioned in the inner cavity, optionally, the transmission shaft 48 is integrally formed with or fixedly assembled with a second gear 54 in a circumferential direction, a first gear 58 is engaged with the second gear 54 so that the transmission shaft 48 is interlocked with the fourth output shaft, and one end of the transmission shaft 48 is connected to the other end of the second sleeve 46 so that the transmission shaft 48 is arranged perpendicular to the second support bar 44. For example, the one end of the second support bar 44 may be connected to the one end of the second sleeve 46 in such a manner that the second support bar 44 is perpendicular to the second sleeve 46, and the one end of the transmission shaft 48 is connected to the other end of the second sleeve 46, for example, in an insertion manner, so that the axis of the transmission shaft 48 is concentric with the axis of the second sleeve 46.

Alternatively, the first gear 58 and the second gear 54 are both straight spur gears commercially available, and the meshing relationship between the first gear 58 and the second gear 54 is represented as m_1×z₁+m_2×z₂＞d_×2, wherein m₁Is the module, z, of the first gear 58₁The number of teeth of the first gear 58, m₂Is the modulus, z, of the second gear 54₂D is the distance between the center of the first gear 58 and the center of the second gear 54. It will be appreciated that the drive shaft 48 may be coupled to the fourth output shaft by other drive mechanisms.

When a vehicle fails, the warning device 10 in the stowed state may be removed from the failed vehicle, the warning device 10 placed on the ground with the housing bottom 18 facing the ground, and the first motor 28 and the second motor 30 activated by the controller so that the warning device 10 advances on the ground in a direction away from the rear of the failed vehicle. During advancement of the warning device 10, the housing bottom 18 is disposed horizontally to the ground, and the first and second support bars 52, 44 are suspended substantially parallel to each other against the housing bottom 18 so as not to impede smooth movement of the warning device 10 over the ground.

When the warning device 10 is advanced to the target position, it is desirable to switch the warning device 10 from the stowed state to the deployed state, whereupon the controller adjusts the direction of rotation and acceleration of the first and

second motors

28, 30, respectively, so that the warning device 10 is momentarily parked, and the controller simultaneously activates the fourth motor 50 so that the first support bar 52 reversibly rotates a first sector of approximately 90 ° in a first direction about the axis of the fourth output shaft, while the second support bar 44 reversibly rotates a second sector of approximately 90 ° in a second direction about the axis of the drive shaft 48, opposite the first direction, the first and second sectors being mutually non-interfering and each being inclined slightly towards the ground with respect to the horizontal housing bottom. Thus, the other end of the first support bar 52 and the other end of the second support bar 44 approach the ground while moving away from each other to pass over the first side portion 20 and the second side portion 22 until the first support bar 52 and the second support bar 44 rotate to abut against the ground obliquely with respect to the bottom of the case.

It will be appreciated that the warning device 10 may include a plurality of support feet, such as the two shown in fig. 2, and that the support feet may be implemented by other elements as well.

When the support feet stably support the warning device 10 at the target position, the controller stops the first motor 28 and the second motor 30 so that the warning device 10 is stationary at the target position. The controller may activate the third motor 40 at the same time as the fourth motor 50 so that the warning frame also extends from the interior cavity during the brief dwell of the warning device 10. Alternatively, the controller may restart the third motor 40 after stopping the fourth motor 50 so that the warning frame extends from the interior cavity after the warning device 10 is at rest at the target location. Therefore, the warning frame and the supporting legs are controlled independently.

Optionally, in order to facilitate the user's operation of the warning device 10, the main control board 32 may further include a wireless receiver configured to wirelessly communicate with a client operated by the user to receive a control signal from the client, for example, the control signal may be executed by the controller in preference to an instruction previously received in a receiver of the warning device 10 to control the movement of the warning device 10, the folding and extending of the warning stand, the rotation of the supporting legs, and the like. For example, the client is configured as a cell phone downloaded with the relevant application, a separate remote control, or a car key integrated with the relevant function.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A warning device (10) for a vehicle, which is configured to be switchable between a stowed state and a deployed state, characterized in that the warning device (10) for a vehicle comprises:

a housing defining a longitudinal axis and an internal cavity extending along the longitudinal axis;

a first wheel (24) and a second wheel (26) configured for movement of the vehicular warning device (10) over a ground surface, axial centerlines of the first wheel (24) and the second wheel (26) each being concentrically arranged in a direction parallel to the longitudinal axis;

a warning frame configured to fold in a stowed state to be received in the interior cavity and to extend out of the interior cavity in a deployed state to serve a warning function; and

and a support leg configured to be suspended from the housing in a retracted state so as not to interfere with movement of the vehicle warning device (10) on the ground, and to abut against the ground in a deployed state so as to support the vehicle warning device (10) that has been moved to a target position.

2. The vehicular warning device (10) according to claim 1, wherein a center of gravity of the vehicular warning device (10) is located below axial centerlines of the first wheel (24) and the second wheel (26) with respect to the ground.

3. The vehicular warning device (10) according to claim 2, further comprising: a first motor (28) for driving the first wheel (24); a second motor (30) for driving the second wheel (26); a gyroscope configured to sense the tilt angle and angular velocity of a moving vehicular warning device (10); an acceleration sensor configured to sense an acceleration of the moving vehicular warning device (10); and a controller configured to control the rotational direction and acceleration of the first motor (28) and the second motor (30), respectively, based on the tilt angle, the angular velocity, and the acceleration to maintain self-balancing of the moving vehicular warning device (10).

4. The vehicular warning device (10) according to any one of claims 1 to 3, wherein the warning bracket comprises a first link (34), a second link (36) pivotably connected to the first link (34), and a third link (38) pivotably connected to the second link (36) and the housing, wherein the third motor (40) is configured to drive the first link (34) such that the first link (34), the second link (36), and the third link (38) are folded in a direction parallel to the longitudinal axis in the stowed state to be received in the internal cavity, and are extended from the internal cavity in the deployed state to form a triangular warning bracket.

5. The vehicular warning device (10) according to claim 4, characterized in that at least one of the first link (34), the second link (36), and the third link (38) is provided with at least one of an LED lamp and a reflective cloth (42).

6. The vehicular warning device (10) according to any one of claims 1 to 3, wherein the support foot comprises: a first support rod (52) vertically connected by means of a first sleeve (56) to an output shaft for bringing the first support rod (52) into rotation in a first direction; a second support bar (44) vertically connected to the drive shaft (48) by means of a second sleeve (46), the drive shaft (48) being in linkage with the output shaft for driving the second support bar (44) to rotate in a second direction opposite to the first direction, wherein the fourth motor (50) is configured to drive the output shaft such that the first support bar (52) and the second support bar (44) hang against the housing bottom (18) in the collapsed state and rotate to an inclination relative to the housing bottom (18) to abut against the ground in the deployed state.

7. The vehicular warning device (10) according to claim 6, characterized in that the first sleeve (56) extends through the housing bottom (18) at a first angle relative to the housing bottom (18) in a cross-section perpendicular to the longitudinal axis, and the second sleeve (46) extends through the housing bottom (18) at a second angle relative to the housing bottom (18) in a cross-section perpendicular to the longitudinal axis, the first angle being arranged opposite to the second angle, and the first angle and the second angle being equal in absolute value and greater than 90 °.

8. The warning device (10) for a vehicle as claimed in claim 6, wherein the output shaft is integrally formed with or fixedly fitted with a first gear (58) in a circumferential direction, the transmission shaft (48) is integrally formed with or fixedly fitted with a second gear (54) in a circumferential direction, and the first gear (58) is engaged with the second gear (54) so that the transmission shaft (48) is linked with the output shaft.

9. The vehicular warning device (10) according to claim 8, wherein the first gear (58) and the second gear (54) are spur gears, and a meshing relationship between the first gear (58) and the second gear (54) is configured such that m is₁×z₁+m₂×z₂> dX 2, wherein m₁Is the module of the first gear (58), z₁M is the number of teeth of the first gear (58)₂Is the module of the second gear (54), z₂Is the number of teeth of the second gear (54), and d is the spacing between the center of the first gear (58) and the center of the second gear (54).

10. The vehicular warning device (10) according to any one of claims 1 to 3, further comprising at least one of an ultrasonic sensor configured to sense an obstacle, a GPS sensor configured to sense a position of the vehicular warning device (10), and a wireless receiver configured to wirelessly communicate with a client.