Patent Description:
Typical automobile side components and parts installations have angular requirements. For instance, the installation of a radar assembly in an automobile turn assist system (Turn Assist) requires certain angular requirements based on the automobile side plane. <CIT> discloses a car equipped with millimeter wave radar, and a method and assembly of mounting a millimeter wave radar.

In the process of implementing the present invention, the inventors have found that in the prior art the angle and direction of the installation position are simply measured and fixed by manual use of an angle ruler and like measuring instruments, and these methods are inefficient and offer poor angle precision in practice, so that the installation angle cannot be guaranteed to be within the error range required by the angle of a component and a part (radar assembly). Therefore, the safety performance of an automobile cannot be guaranteed.

Therefore, it is necessary to provide a positioning assist device and a positioning assist method to solve the above problems.

Embodiments of the present invention are intended to provide a positioning assist device and a positioning assist method for improving the precision of the installation angle of a radar assembly to be installed, thereby improving the safety performance of an automobile.

The embodiments of the present invention solve the technical problems thereof by using the following technical solutions: providing a positioning assist device, including:.

In some embodiments, the laser device is horizontally rotatable relative to the horizontal reference rod.

In some embodiments, the laser device may slide along the center line in the lengthwise direction of the horizontal reference rod.

In some embodiments, the horizontal reference rod is slidable relative to the second connecting rod along the lengthwise direction of the second connecting rod.

In some embodiments, the horizontal reference rod comprises a moving part and a rotating part extending vertically from the moving part, the moving part is sleeved on the second connecting rod, the moving part can slide relative to the second connecting rod along the lengthwise direction of the second connecting rod, the rotating part can rotate relative to the second connecting rod, and the laser device is movably installed on the rotating part.

In some embodiments, the positioning assist device comprises a first locking mechanism, wherein the first locking mechanism can lock the horizontal reference rod relative to the second connecting rod to limit the movement of the horizontal reference rod relative to the second connecting rod.

In some embodiments, the first locking mechanism comprises a locking ring, a first locking bolt, and a first locking nut;
two ends of the locking ring are provided with a first via hole and a first through hole through which the first locking bolt passes, the first locking ring is sleeved on the moving part, and the first locking nut is used for cooperating with the first locking bolt after the first locking bolt passes through the first via hole and the first through hole.

In some embodiments, at the junction of the horizontal reference rod and the second connecting rod, one of the horizontal reference rod and the second connecting rod is provided with a first arc-shaped scale, and the other is provided with a first reference indication line.

In some embodiments, the positioning assist device further comprises a second locking mechanism for locking the laser device relative to the horizontal reference rod to limit the movement of the laser device relative to the horizontal reference rod.

In some embodiments, the second locking mechanism comprises a locking plate, a second locking bolt, and a second locking nut, wherein the locking plate is fixed to the laser device, the locking plate is provided with an arc-shaped hole for the second locking bolt to pass through, the horizontal reference rod is provided with a sliding groove for the second locking bolt to pass through, and the second locking nut is used for cooperating with the second locking bolt after the second locking bolt passes through the arc-shaped hole and the sliding groove;
wherein the second bolt can slide in an arc direction of the arc-shaped hole, and the sum of radians of the arc-shaped holes is greater than or equal to <NUM> degrees.

In some embodiments, a sliding block is sleeved on the horizontal reference rod, the sliding block can slide along the lengthwise direction of the horizontal reference rod, a second via hole through which the second locking bolt passes is provided on the sliding block, and the second locking bolt cooperates with the second locking nut after passing through the arc-shaped hole, the second via hole, and the sliding groove;
wherein when the second locking nut is tightened, the second locking nut abuts against the sliding block.

In some embodiments, a second arc-shaped scale is provided on the arc-shaped hole, and a second reference indication line is provided on the second locking bolt.

In some embodiments, the first fixator comprises a first installation seat and two first claw assemblies, wherein the two first claw assemblies are clamped on a hub of the front wheel, the first installation seat is located at center positions of the two first claw assemblies, and a first end of the first fixing rod is installed on the first installation seat;
the second fixator comprises a second installation seat and two second claw assemblies, wherein the second installation seat is located at the center positions of the two second claw assemblies, the two second claw assemblies are clamped to the hub of the rear wheel, and a second end of the first fixing rod is installed on the second installation seat.

Embodiments of the present invention further provide a positioning assist method including the above-described positioning assist device, the method comprising:.

In some embodiments, the step of according to the installation direction and the installation angle, adjusting the horizontal reference rod so that an included angle between the horizontal reference rod and the first connecting rod is the same as the installation angle further comprises:.

The embodiments of the present invention have the following beneficial effects.

Embodiments of the present invention provide a positioning assist device and a positioning assist method for determining the installation position of a radar assembly to be installed on a side surface of one side of an automobile by adjusting the laser device and the horizontal reference rod.

One or more embodiments are exemplified by the drawings in the accompanying drawings corresponding thereto. These exemplified descriptions do not constitute a limitation on the embodiments. Elements in the drawings having the same reference number designations are illustrated as similar elements, and unless otherwise particularly stated, the drawings do not constitute a proportional limitation.

In order to make the present invention readily understood, a more detailed description of the present invention will be rendered with reference to the appended drawings and specific embodiments. It should be noted that when an element is referred to as being "secured" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When one element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. In the description, the orientation or positional relationships indicated by the terms used herein "up", "down", "inside", "outside", "vertical", "horizontal" etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. Furthermore, the terms "first", "second", etc. are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used in the specification have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terminology used in the description of the present invention is for the purpose of describing specific embodiments only and is not intended to limit the present invention.

Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

With reference to <FIG>, a positioning assist device is provided by an embodiment of the present invention, comprising a first fixator <NUM>, a second fixator <NUM>, a first connecting rod <NUM>, a second connecting rod <NUM>, a horizontal reference rod <NUM>, and a laser device <NUM>. The first fixator <NUM> is installed on a front wheel on one side of an automobile (as shown in <FIG>), the second fixator <NUM> is installed on a rear wheel on one side of the automobile, and the first fixator <NUM> and the second fixator <NUM> are located on the same side of the automobile. The first connecting rod <NUM> is connected between the first fixator <NUM> and the second fixator <NUM>. A vertical plane where a center line O1 along the lengthwise direction of the first connecting rod <NUM> is located is parallel to a center axis plane of the automobile. The second connecting rod <NUM> is disposed perpendicular to the first connecting rod <NUM>. The horizontal reference rod <NUM> is installed on the second connecting rod <NUM> and is rotatable around the second connecting rod <NUM>, and a horizontal plane where the center line along the lengthwise direction of the horizontal reference rod <NUM> is located is perpendicular to the center axis plane of the automobile. The laser device <NUM> is movably installed on the horizontal reference rod <NUM>, the laser device <NUM> is used for emitting laser light downward to form a laser line on an object located under the laser device <NUM>, and the horizontal angle of the laser device <NUM> relative to the horizontal reference rod <NUM> can be adjusted to be the angle, relative to the center axis plane of the automobile, of the energy receiving and transmitting surface of a radar assembly to be installed when the radar assembly to be installed is installed on one side of the automobile. The horizontal angle of the laser device <NUM> relative to the first connecting rod <NUM> is the angle between the direction of the laser line emitted by the laser device <NUM> and the center line along the lengthwise direction of the first connecting rod <NUM> in the horizontal plane where the center line along the lengthwise direction of the first connecting rod <NUM> is located.

It needs to be noted that the central axial plane of the automobile means a plane perpendicular to the ground and passing through the middle points of the two front wheels and the middle points of the two rear wheels of the automobile.

The energy receiving and transmitting surface of the radar assembly to be installed means the antenna plane of the radar or a plane parallel to the antenna plane of the radar.

It could be understood that one side of the automobile includes places under a rear view mirror of the automobile, or at a side guard rail of the automobile.

Referring to <FIG> together, in some embodiments, the first fixator <NUM> and the second holder <NUM> may have the same structure, and both may be a hub clamping device. For example, the first fixator <NUM> comprises a first installation seat <NUM>, two first claw assemblies <NUM>, a first drive module <NUM>, and a first locking module <NUM>. The first installation seat <NUM> is located at the central positions of the two first claw assemblies <NUM>, and a first end of the first connecting rod <NUM> is installed on the first installation seat <NUM>. The two first claw assemblies <NUM> are clamped to the hub of the front wheel; the two first claw assemblies <NUM> are installed on the first drive module <NUM>; the first drive module <NUM> is used for synchronously driving the two first claw assemblies <NUM> to move, so that the two first claw assemblies <NUM> can move towards or away from each other synchronously relative to the first installation seat <NUM>, so as to adapt to hubs of different sizes; the first locking module <NUM> is used for locking the first drive module <NUM>, so as to ensure that the two first claw assemblies <NUM> are fixed.

The second fixator <NUM> comprises a second installation seat <NUM>, two second claw assemblies <NUM>, a second drive module <NUM>, and a second locking module <NUM>; the second installation seat <NUM> is located at the central positions of the two second claw assemblies <NUM>; the second end of the first connecting rod <NUM> is installed on the second installation seat <NUM>; the two second claw assemblies <NUM> are clamped to the hub of the rear wheel; the two second claw assemblies <NUM> are installed on the second drive module <NUM>; the second drive module <NUM> is used for synchronously driving the two second claw assemblies <NUM> to move so that the two second claw assemblies <NUM> can move towards or away from each other synchronously relative to the second installation seat <NUM> so as to adapt to hubs of different sizes, and the second locking module <NUM> is used for locking the second drive module <NUM> so as to ensure that the two second claw assemblies <NUM> are fixed.

The first drive module <NUM> and the second drive module <NUM> may be a lead screw mechanism, and the first drive module <NUM> is described herein as an example.

For example, the first drive module <NUM> includes a guide assembly for guiding the movement of the two first claw assemblies <NUM>, and a driving member <NUM> for synchronously driving the two first claw assemblies <NUM> toward or away from each other.

Specifically, referring to <FIG>, the driving member <NUM> may be a driving rod including a left-hand threaded portion, a right-hand threaded portion, and a connecting portion connecting the left-hand threaded portion and the right-hand threaded portion, the left-hand threaded portion and the right-hand threaded portion being oppositely provided. The left-handed threaded portion is provided with a left-handed thread, and the right-handed threaded portion is provided with a right-handed thread. One of the first claw assemblies <NUM> is threadedly connected to the left-handed threaded portion, and the other of the first claw assemblies <NUM> is threadedly connected to the right-handed threaded portion. Therefore, when the driving member <NUM> is rotated, the two first claw assemblies <NUM> move synchronously by the same distance, so as to ensure that the first installation seat <NUM> is always in the middle of the two first claw assemblies <NUM>, and ensure that the central axis of the first installation seat <NUM> coincides with the central axis of its the installation hub.

The guide assembly comprises a first guide post <NUM>, a second guide post <NUM>, and a connecting block <NUM>. The first guide post <NUM> and the second guide post <NUM> are respectively located on two sides of the driving member <NUM>, one of the first claw assemblies <NUM> is installed on one end of the first guide post <NUM> and the second guide post <NUM>, and the other of the first claw assemblies <NUM> is installed on the other end of the first guide post <NUM> and the second guide post <NUM>.

The driving member <NUM> is connected to the connecting block <NUM>. Specifically, one end of the first guide post <NUM> passes through the two first claw assemblies <NUM> in sequence and is then connected to the connecting block <NUM>, and the other end of the first guide post <NUM> is connected to the locking module <NUM>. Likewise, one end of the second guide post <NUM> passes through the two first claw assemblies <NUM> in sequence and is then connected to the other end of the connecting block <NUM>, and the first guide post <NUM> and the second guide post <NUM> are parallel to each other. Therefore, the two first claw assemblies <NUM> are movable along the first guide post <NUM> and the second guide post <NUM> to ensure that the two first claw assemblies <NUM> move along a preset path.

One end of the driving member <NUM> is connected to the connecting block <NUM>, and the other end is connected to the locking module <NUM>.

It could be understood that the guide assembly <NUM>, in addition to the form of the first guide post <NUM>, the second guide post <NUM>, and the connecting block <NUM> described above, may be in the form of at least two pairs of sliding blocks and two guide rails, for example, a sliding block secured to the first claw assembly and a sliding block slidably connected to a guide rail.

For the structure of the first locking module <NUM>, the embodiment of the present application does not have any limitations as long as the rotation of the driving member <NUM> can be limited.

The first end of the first connecting rod <NUM> is installed on the first installation seat <NUM>, and the second end of the first connecting rod <NUM> is installed on the second installation seat <NUM>; specifically, a first installation hole for installing the first connecting rod <NUM> is provided on the first installation seat <NUM>, and the first installation hole is coaxial with the central axis of the first installation seat <NUM>; a second installation hole for installing the first connecting rod <NUM> is provided on the second installation seat <NUM>, and the second installation hole is coaxial with the central axis of the second installation seat <NUM>, so as to ensure that the vertical plane, where the center line in the lengthwise direction of the first fixing rod <NUM> is located, is parallel to the center axis plane of the automobile.

The first installation hole and the second installation hole may both be threaded holes, two ends of the first connecting rod <NUM> may be respectively provided with threads, and the first connecting rod <NUM> is fixed between the first installation seat <NUM> and the second installation seat <NUM> by the cooperation of the first connecting rod <NUM> with the first installation hole and the second installation hole.

Of course, the structures of the first fixator <NUM> and the second fixator <NUM> may be different as long as it suffices that the first fixator <NUM> and the second fixator <NUM> can be clamped to a hub of an automobile, and the vertical plane, where the center line in the lengthwise direction of the first connecting rod <NUM> is located, is parallel to the center axis plane of the automobile.

In some embodiments, the second connecting rod <NUM> is installed on the second installation seat <NUM> and perpendicular to the first connecting rod <NUM>. In other embodiments, the second connecting rod <NUM> may be installed on the ground or other devices as long as it is ensured that the second connecting rod <NUM> is perpendicular to the first connecting rod <NUM>, without any limitation by this embodiment of the present application.

In some embodiments, the horizontal reference rod <NUM> may rotate only about the second connecting rod <NUM>, or alternatively, the horizontal reference rod <NUM> may both rotate around the second connecting rod <NUM> and slide relative to the second connecting rod <NUM> along the lengthwise direction of the second connecting rod <NUM>.

The horizontal reference rod <NUM> may have an L-shaped, a T-shaped, a linear-shaped, or like structures.

This application takes the horizontal reference rod <NUM> as a T-shape as an example for explanation.

Referring to <FIG>, the horizontal reference rod <NUM> includes a moving part <NUM> sleeved on the second connecting rod <NUM> and rotatable around the second connecting rod <NUM>, and a rotating part <NUM> vertically extending along the moving part <NUM>. The laser device <NUM> is movably installed on the rotating part <NUM>.

It could be understood that when one end of the moving part <NUM> is a closed end and the other end is an open end, the moving part <NUM> is sleeved on the second connecting rod <NUM> and the closed end of the moving part <NUM> abuts the top of the second connecting rod <NUM>. At this time, the horizontal reference rod <NUM> can only rotate around the second connecting rod <NUM>. When two ends of the moving part <NUM> are open ends, the moving part <NUM> is sleeved on the second connecting rod <NUM> and can slide along the second connecting rod <NUM>. At this time, the horizontal reference rod <NUM> can both rotate around the second connecting rod <NUM> and slide relative to the second connecting rod <NUM> along the lengthwise direction of the second connecting rod <NUM>.

The present application takes the situation that the horizontal reference rod <NUM> can both rotate around the second connecting rod <NUM> and slide relative to the second connecting rod <NUM> along the lengthwise direction of the second connecting rod <NUM> as an example.

In some embodiments, the positioning assist device includes a first locking mechanism <NUM> that can lock the horizontal reference rod <NUM> relative to the second connecting rod <NUM> to limit movement of the horizontal reference rod <NUM> relative to the second connecting rod <NUM>.

It needs to be noted that limiting the movement of the horizontal reference rod <NUM> relative to the second connecting rod <NUM> means that the horizontal reference rod <NUM> is restricted from rotating and sliding relative to the second connecting rod <NUM>.

The first locking mechanism <NUM> comprises a locking ring, a first locking bolt, and a first locking nut. The first locking ring is sleeved on the moving part <NUM>, the two ends of the locking ring are provided with a first via hole and a first through hole through which the first locking bolt passes, and the first locking nut is used for cooperating with the first locking bolt after the first locking bolt passes through the first via hole and the first through hole.

The first locking mechanism <NUM> achieves the locking of the horizontal reference rod <NUM> when the first locking nut is tightened; when the horizontal reference rod <NUM> needs to rotate or slide relative to the second connecting rod <NUM>, it only requires the first locking bolt to be loosened.

It is worth noting that, in some embodiments, the first locking ring may be omitted, and the moving part may be provided in an open-loop structure that constitutes the locking ring described above, as shown in <FIG>.

It could be understood that the first locking mechanism <NUM> can also be other mechanisms, for example, the first locking mechanism comprises two locking nuts, the outer surface of the connecting rod <NUM> is provided with threads, the two locking nuts are respectively screwed on two ends of the connecting rod, and the moving part is between two nuts. When the two nuts are relatively tightened and abut against the moving part, the horizontal reference rod <NUM> can be locked. When the horizontal reference rod <NUM> needs to rotate or slide relative to the second connecting rod <NUM>, the two locking nuts are loosened, and at this time, the horizontal reference rod is rotatable about the second connecting rod <NUM>, and the horizontal reference rod is slidable along the second connecting rod <NUM> between two locking nuts.

It could be understood that the configuration of the first locking mechanism <NUM> is not limited to the embodiments of the present invention, and that other means restricting the rotation and sliding of the horizontal reference rod <NUM> are included in the embodiments of the present application.

In some embodiments, at the junction of the horizontal reference rod <NUM> and the second connecting rod <NUM>, one of the horizontal reference rod <NUM> and the second connecting rod is provided with a first arc-shaped scale, and the other is provided with a first reference indication line O2. For example, the moving part <NUM> is provided with the first arc-shaped scale, and the second connecting rod <NUM> is provided with the first reference indication line O2 (the first reference indication line O2 can be a straight line located on the outer surface of the second connecting rod <NUM> and extend from the top of the second connecting rod to the bottom of the second connecting rod, as shown in <FIG>) so that when the horizontal reference rod <NUM> is rotated relative to the second connecting rod <NUM>, the angle at which the horizontal reference rod <NUM> is rotated can be known according to the first reference indication line O2 and the first arc-shaped scale on the moving part.

In some embodiments, a distance scale is provided on the first reference indication line O2 so that when the horizontal reference rod <NUM> slides relative to the second connecting rod <NUM>, the distance that the horizontal reference rod <NUM> slides can be known according to the distance scale on the first reference indication line O2.

It could be understood that the first reference indication line O2 may also be provided on the moving part. The second connecting rod <NUM> is provided with an arc scale, which extends from the top of the second connecting rod to the bottom of the second connecting rod for easy observation.

The horizontal angle of the laser device <NUM> relative to the first connecting rod <NUM> can be adjusted by the movement of the horizontal reference rod <NUM> relative to the second connecting rod <NUM>.

The laser device <NUM> is movably installed on the horizontal reference rod <NUM>. In the embodiments of the present invention, the laser device <NUM> is movably installed on the horizontal reference rod <NUM>, meaning that the laser device <NUM> is horizontally rotatable relative to the horizontal reference rod <NUM>.

For example, the laser device <NUM> may be rotated horizontally relative to the horizontal reference rod <NUM>, and the positioning assist device further includes a second locking mechanism <NUM> for locking the laser device <NUM> relative to the horizontal reference rod <NUM> to limit the movement (e.g. horizontal rotation) of the laser device <NUM> relative to the horizontal reference rod <NUM>.

The mechanisms for horizontally rotating and locking the laser device <NUM> relative to the horizontal reference rod <NUM> can be the same mechanism. For example, the second locking mechanism <NUM> comprises a locking plate <NUM>, a second locking bolt <NUM>, and a second locking nut. The locking plate <NUM> is connected to the laser device <NUM>, the locking plate <NUM> is perpendicular to the center axis plane of the automobile, the locking plate <NUM> is provided with an arc-shaped hole <NUM> for the second locking bolt <NUM> to pass through, and the horizontal reference rod <NUM> is provided with a sliding groove <NUM> for the second locking bolt <NUM> to pass through; the second locking bolt <NUM> is slidable along the sliding groove <NUM> provided along the lengthwise direction of the horizontal reference rod <NUM>, and the second locking nut is used for cooperating with the second locking bolt <NUM> after the second locking bolt <NUM> passes through the arc-shaped hole <NUM> and the sliding groove <NUM>. The second locking bolt <NUM> can slide along the arc direction of the arc-shaped hole <NUM>, and the sum of the radians of the arc-shaped hole <NUM> is greater than or equal to <NUM> degrees, so that the horizontal angle of the laser device <NUM> relative to the horizontal reference rod <NUM> can be adjusted by the second locking bolt <NUM> sliding along the arc direction of the arc-shaped hole <NUM>.

The locking of the laser device <NUM> relative to the horizontal reference rod <NUM> can be achieved when the second locking nut is tightened, and the second locking nut is loosened when the laser device <NUM> needs to be rotated horizontally relative to the horizontal reference rod <NUM>.

It could be understood that the connection of the laser device <NUM> to the locking plate <NUM> may be a fixed connection or a movable connection. For example, the laser device <NUM> being fixedly connected to the locking plate <NUM>, or the laser device <NUM> being movably connected to the locking plate <NUM>, e.g. hinged. When the laser device is movably connected (e.g. hinged) to the locking plate <NUM>, the laser device can move relative to the locking plate <NUM> under an external force.

In some embodiments, the arc-shaped hole <NUM> is provided with a second arc-shaped scale, the second locking bolt <NUM> is provided with a second reference indication line, and the horizontal angle of rotation of the laser device <NUM> relative to the horizontal reference rod <NUM> can be known through the second arc-shaped scale of the arc-shaped hole <NUM> and the second reference indication line.

In some embodiments, the laser device <NUM> can also slide along the lengthwise direction of the horizontal reference rod <NUM>; in order to limit the laser device <NUM> to slide along other directions, the rotating part <NUM> of the horizontal reference rod <NUM> is of a square structure, the locking plate <NUM> is parallel to the top surface of the rotating part <NUM>, the rotating part <NUM> is sleeved with a sliding block <NUM>, the sliding block <NUM> can slide along the lengthwise direction of the horizontal reference rod <NUM>, the sliding block <NUM> is provided with a second via hole through which the second locking bolt <NUM> passes, and the second locking bolt passes through the arc-shaped hole, the second via hole, and the sliding groove <NUM>, and then cooperates with the second locking nut. When the second locking nut is tightened, the locking plate <NUM> and the sliding block <NUM> remain relatively fixed, and the sliding block <NUM> can drive the second locking device <NUM> and the laser device <NUM> to slide along the lengthwise direction of the horizontal reference rod <NUM>.

It is worth noting that when the second locking nut is tightened, the second locking nut abuts against the sliding block.

To ensure the removal of the sliding block from the top of the horizontal reference rod, one of the side of the horizontal reference rod and one side of the sliding block opposite the side of the horizontal reference is provided with a convex rib and the other is provided with a groove for receiving the convex rib. The convex rib can slide along the groove.

It could be understood that the sliding block <NUM> can only slide along the lengthwise direction of the horizontal reference rod under an external force.

In other embodiments, the locking plate <NUM> may be omitted. As shown in <FIG>, the second locking mechanism <NUM> comprises a second locking bolt <NUM> and a second locking nut, the laser device <NUM> is installed on the second locking bolt <NUM>, the second locking bolt passes through the second via hole and the sliding groove <NUM> and then cooperates with the second locking nut, and the horizontal angle of the laser device <NUM> relative to the horizontal reference rod <NUM> can be adjusted by rotating the second locking bolt. In this manner, at the junction of the second bolt <NUM> and the sliding block <NUM>, one of the second locking bolt <NUM> and the sliding block <NUM> is provided with a second arc-shaped scale and the other is provided with a second reference indication line. Similarly, the laser device <NUM> may be movably or fixedly installed on the second locking bolt <NUM>.

The laser device <NUM> can slide along the horizontal reference rod <NUM> in order to enable the laser light emitted by the laser device <NUM> to form a laser line on the first connecting rod <NUM>, so as to prevent the laser line from being formed on the first connecting rod <NUM> due to the shielding of the horizontal reference rod <NUM> when the laser device <NUM> emits laser light downward.

Of course, in order to ensure that the laser light emitted from the laser device <NUM> can form a laser line on the first connecting rod <NUM>, the length of the first connecting rod is longer than the length of the rotating part <NUM> of the horizontal reference rod <NUM>.

It should be understood that the mechanism by which the laser device <NUM> moves and locks relative to the horizontal reference rod <NUM> is not limited to the embodiments of the present application, and that other mechanisms that enable the laser device to move and lock relative to the horizontal reference rod are included in the embodiments of the present application.

During a specific implementation, loosening the second locking nut, rotating the laser device <NUM> until the direction of the laser line of the laser device <NUM> on the horizontal reference rod <NUM> is parallel to the center line of the lengthwise direction of the horizontal reference rod <NUM>, screwing the second locking nut, and recording the angle of the second reference indication line relative to the second arc-shaped scale at this moment as A1; lessening the first locking nut, rotating the horizontal reference rod <NUM> until the direction of the laser line of the laser light emitted by the laser device <NUM> on the first connecting rod <NUM> is parallel to the center line O1 of the lengthwise direction of the first connecting rod <NUM>, screwing the second locking nut, recording the angle of the first reference indication line O2 relative to the first arc-shaped scale at this moment as B <NUM>, and designating the position as a zero point position; acquiring an installation angle and an installation direction of an energy receiving and transmitting surface of the radar assembly to be installed relative to a center axis plane of the automobile, lessening the second locking nut, horizontally rotating the laser device <NUM> the installation angle in a direction opposite to the installation direction, and screwing the second locking nut, and recording an angle of the second reference indication line relative to the second arc-shaped scale at this moment as A2; lessening the first locking nut, then rotating the horizontal reference rod <NUM> until the direction of the laser line of the laser light emitted by the laser device <NUM> on the first connecting rod <NUM> is parallel to the center line of the lengthwise direction of the first connecting rod <NUM>, screwing the second locking nut, and recording the angle of the first reference indication line O2 relative to the first arc-shaped scale at this moment as B2.

At this time, according to the position of the horizontal reference rod <NUM> relative to the first connecting rod <NUM>, the side position of the radar assembly to be installed on one side of the automobile can be determined, namely, the angle of the energy receiving and transmitting surface of the radar assembly relative to one side of the automobile is determined.

It could be understood that the difference between A1 and A2 and the difference between B <NUM> and B2 are both the installation angles.

In the above implementation mode, the sliding block <NUM> can be slid according to the requirements.

Referring to <FIG> and <FIG> together, embodiments of the present application provide a positioning assist method including the above-described positioning assist device for assisting in the installation of the above-described radar assembly to be installed.

Step S10, adjust the first fixator <NUM> and the second fixator <NUM> to ensure that a vertical plane, where a center line in a lengthwise direction of the first connecting rod <NUM> is located, is parallel to the center axis plane of the automobile.

Step S20, rotate the laser device <NUM> until the direction of the laser line of the laser light emitted by the laser device on the horizontal reference rod <NUM> is parallel to the center line of the lengthwise direction of the horizontal reference rod.

Step S30, rotate the horizontal reference rod <NUM> until the direction of the laser line of the laser light emitted by the laser device <NUM> on the first connecting rod <NUM> is parallel to the center line of the lengthwise direction of the first connecting rod <NUM>, and denote this position as a zero point position.

Step S40, acquire an installation angle and an installation direction of an energy receiving and transmitting surface of the radar assembly to be installed relative to a center axis plane of the automobile when the radar assembly to be installed is installed on one side of the automobile.

It needs to be noted that the installation angle of an energy receiving and transmitting surface of the radar assembly to be installed relative to a center axis plane of the automobile refers to a horizontal angle of the laser device <NUM> relative to the first connecting rod <NUM>. The installation direction of an energy receiving and transmitting surface of the radar assembly to be installed relative to a center axis plane of the automobile refers to the deflection direction of the laser device relative to the first connecting rod. The horizontal angle of the laser device <NUM> relative to the first connecting rod <NUM> is an angle between the direction of the laser line emitted by the laser device and a center line O1 along the lengthwise direction of the first connecting rod in a horizontal plane where the center line along the lengthwise direction of the first connecting rod <NUM> is located.

Step S50, according to the installation direction and the installation angle, adjust the horizontal reference rod <NUM> so that the included angle between the horizontal reference rod <NUM> and the first connecting rod <NUM> is the same as the installation angle, and the deflection direction of the horizontal reference rod <NUM> relative to the first connecting rod <NUM> is the same as the installation direction.

It needs to be noted that the first connecting rod <NUM> and the adjusted horizontal reference rod <NUM> are used to assist in installing the radar assembly to be installed.

It needs to be noted that the step of according to the installation direction and the installation angle, adjusting the horizontal reference rod <NUM> so that the included angle between the horizontal reference rod <NUM> and the first connecting rod is the same as the installation angle further includes:.

Embodiments of the present invention provide a positioning assist device and method for determining the installation position of a radar assembly to be installed on a side surface of one side of an automobile by adjusting the laser device and the horizontal reference rod. The operation is simple, convenient, and fast, and the installation precision is high.

Claim 1:
A positioning assist device, characterized by comprising:
a first fixator (<NUM>) installed on a front wheel on one side of an automobile;
a second fixator (<NUM>) installed on a rear wheel on one side of the automobile, the first fixator (<NUM>) and the second fixator (<NUM>) being located on a same side of the automobile;
a first connecting rod (<NUM>) connected between the first fixator (<NUM>) and the second fixator(<NUM>), wherein a vertical plane, where a center line (O1) in a lengthwise direction of the first connecting rod (<NUM>) is located, is parallel to a center axis plane of the automobile;
a second connecting rod (<NUM>) disposed perpendicular to the first connecting rod (<NUM>);
a horizontal reference rod (<NUM>) installed on the second connecting rod (<NUM>) and rotatable about the second connecting rod (<NUM>), wherein a horizontal plane, where the center line in the lengthwise direction of the horizontal reference rod (<NUM>) is located, is perpendicular to the horizontal plane where the center line (<NUM>) in the lengthwise direction of the first connecting rod (<NUM>) is located;
and a laser device (<NUM>) movably installed on the horizontal reference rod (<NUM>), the laser device (<NUM>) being used for emitting laser light downwards to form a laser line on an object located below the laser device (<NUM>), and a horizontal angle of the laser device (<NUM>) relative to the first connecting rod (<NUM>) being adjustable to be an angle, relative to the center axis plane of the automobile, of an energy receiving and transmitting surface of a radar assembly to be installed when the radar assembly to be installed is installed on one side of the automobile, wherein the horizontal angle of the laser device (<NUM>) relative to the first connecting rod (<NUM>) is the angle between a direction of the laser line emitted by the laser device (<NUM>) and the center line along the lengthwise direction of the first connecting rod (<NUM>) in the horizontal plane where the center line (O1) along the lengthwise direction of the first connecting rod (<NUM>) is located.