Laser assembly and four-wheel positioning measuring device

Abstract

The utility model provides a laser assembly and a four-wheel positioning measuring device. The laser assembly comprises an inclined support and a laser module arranged on the inclined support. The inclined support is used for supporting the laser module, the center axis of the laser module and the plane where the hub of the to-be-measured tire is located form an inclined angle, and the laser module projects a laser image towards the surface of the to-be-measured tire from the inclined support. By the adoption of the technical scheme, under the condition that miniaturization of the vehicle detection equipment is guaranteed and the distance between the laser assembly and the tire is small, it is guaranteed that the laser image projected by the laser assembly covers the range of the surface of the tire, the recognition accuracy degree of the laser image is improved, and in other words, the accuracy degree of the detection result of the vehicle detection equipment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of four-wheel alignment measuring devices, and more specifically, to a laser component and a four-wheel alignment measuring device. Background Technology

[0002] With the rapid development of science and technology and the economy in my country, the number of cars owned by residents is growing rapidly. As a result, vehicle inspection technology is also constantly evolving. As an important part of vehicle inspection, wheel alignment parameter testing has a significant impact on overall vehicle safety. Abnormal wheel alignment parameters can lead to a series of economic and safety issues, such as abnormal tire wear, vehicle drift, wheel shimmy, heavy steering, and increased fuel consumption, directly affecting driving safety and daily use.

[0003] Currently, vehicle inspection equipment used to detect the position of four wheels of a car uses image recognition to obtain tire positioning information. However, in pursuit of miniaturization, existing vehicle inspection equipment results in an excessively small distance between the laser and the tire, causing the image projected onto the tire surface to be too small, i.e., the tire coverage area is too small, which may lead to low image recognition accuracy and consequently low accuracy of the vehicle inspection results. Utility Model Content

[0004] The purpose of this invention is to provide a laser component and a four-wheel alignment measuring device to solve the technical problem in the prior art where the distance between the laser and the tire is too small due to the pursuit of miniaturization in vehicle inspection equipment, resulting in a small image projected by the laser onto the tire surface, and thus low accuracy of the inspection results of the vehicle inspection equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, a laser assembly is provided, comprising:

[0007] An inclined support and a laser module mounted on the inclined support; the inclined support is used to support the laser module, so that the central axis of the laser module is inclined at an angle to the plane where the hub of the tire to be tested is located, and the laser module projects a laser image from the inclined support onto the surface of the tire to be tested.

[0008] By adopting the above technical solution, while ensuring the miniaturization of the vehicle detection equipment and the small distance between the laser component and the tire, the laser image projected by the laser component covers the tire surface, thereby improving the recognition accuracy of the laser image and thus improving the accuracy of the detection results of the vehicle detection equipment.

[0009] In one embodiment, the tilt angle ranges from 0° to 60°.

[0010] By adopting the above technical solution, the area covered by the laser image on the tire is expanded, thereby improving the clarity of the laser image acquired by the camera device and thus improving the accuracy of the detection results of the vehicle detection equipment.

[0011] In one embodiment, the laser module includes a laser element for projecting laser light and a grating element for forming the laser image by the laser light, the grating element being located on the light-emitting aperture of the laser element.

[0012] By adopting the above technical solution, the grating element enables the laser emitted by the laser element to form a laser image, which is beneficial for the camera device to acquire and easily analyze the tire's positioning information.

[0013] In one embodiment, the laser assembly further includes a laser housing, which covers the laser element and has a laser opening, and a grating element is disposed in the laser opening, with the grating element and the laser element being spaced apart.

[0014] By adopting the above technical solution, the laser housing improves the protection performance of the laser element; in addition, the laser housing has a laser opening, which facilitates the fixing of the grating element and allows the grating element and the laser element to be spaced apart, which helps the grating element to divide the laser into multiple laser beams. In one embodiment, the grating element has multiple parallel slits.

[0015] By adopting the above technical solution, the camera device can more easily analyze the tire's positioning information.

[0016] In one embodiment, the inclined support includes a base frame, an upright frame, and an inclined frame. The upright frame is erected on the base frame, and the inclined frame is disposed on the upright frame. The inclined frame has an inclined surface that is angled to the plane where the hub of the tire to be tested is located. The laser module is disposed on the inclined surface, such that the central axis of the laser module is at an angle to the plane where the hub of the tire to be tested is located.

[0017] By adopting the above technical solution, the tilt setting of the laser module was achieved.

[0018] In one embodiment, the cross-section of the upright body is smaller than the side of the base frame that connects with the upright body.

[0019] By adopting the above technical solution, the mechanical strength and lightweight of the entire inclined support are guaranteed while maintaining a certain height.

[0020] In one embodiment, the inclined frame includes a connecting part and a support part connected to the connecting part. The connecting part is connected to the upright frame, and the support part is provided with the inclined surface. The support part is inclined relative to the connecting part.

[0021] By adopting the above technical solution, the inclined frame includes a connecting part and a supporting part, which enables the laser module to be installed at an angle on the upright frame.

[0022] In one embodiment, at least one of the base frame, the upright frame, and the inclined frame is provided with a weight-reducing hole.

[0023] By adopting the above technical solutions, the inclined support can be made lighter.

[0024] In one embodiment, the base frame is provided with a limiting groove, the upright frame is inserted into the limiting groove, and the groove wall of the limiting groove abuts against the bottom of the upright frame.

[0025] By adopting the above technical solution, the limiting groove limits the movement of the upright body and makes the upright body stand on the base frame.

[0026] In one embodiment, the base frame is provided with reinforcing ribs, which are located on the surface that is in contact with the upright frame.

[0027] By adopting the above technical solution, the reinforcing ribs are used to improve the mechanical strength of the base frame, so that the base frame can exert a greater supporting force on the upright frame, thereby improving the stability of the upright frame.

[0028] Secondly, a four-wheel alignment measuring device is provided, including a camera device and the aforementioned laser component, wherein the camera device is used to acquire a laser image projected by the laser component onto the surface of the tire to be tested.

[0029] By adopting the above technical solution, in addition to the advantages of the laser component in the above embodiments, the four-wheel alignment measuring device of this embodiment also has the advantage of high accuracy of the detection results. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of the four-wheel alignment measuring device provided in this embodiment of the utility model;

[0032] Figure 2This is an exploded view of the laser component provided in this embodiment of the present invention;

[0033] Figure 3 This is an exploded view of the laser module provided in this embodiment of the utility model.

[0034] The labels for the attached figures are as follows:

[0035] 100. Laser assembly; 200. Camera device;

[0036] 1. Inclined support; 2. Laser module; 3. Laser housing;

[0037] 11. Base frame; 12. Vertical frame; 13. Inclined frame; 21. Laser element; 22. Grating element; 31. Laser opening;

[0038] 211. Light-emitting hole; 131. Inclined surface; 132. Connecting part; 133. Supporting part; 134. Weight reduction hole; 111. Limiting groove; 112. Reinforcing rib. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0040] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this utility model is described in more detail below with reference to specific embodiments:

[0043] like Figures 1 to 3As shown in the illustration, a laser component 100 provided in this embodiment of the present invention is applied in a vehicle inspection device. For example, the vehicle inspection device of this embodiment is used to detect the four-wheel alignment information of a vehicle. The laser component 100 is used to project a laser image onto the wheel hub of the tire to be tested. The camera device 200 of the four-wheel alignment measuring device acquires the laser image and analyzes the tire's alignment information. This embodiment ensures the integrity of the projected laser image even when the laser component 100 is close to the tire to be tested, thus improving the accuracy of the vehicle inspection device's detection results. The following detailed description illustrates this process:

[0044] The laser component 100 in this embodiment includes:

[0045] An inclined support 1 and a laser module 2 mounted on the inclined support 1; the inclined support 1 is used to support the laser module 2, so that the central axis of the laser module 2 is inclined at an angle to the plane where the hub of the tire to be tested is located, and the laser module 2 projects a laser image from the inclined support 1 onto the surface of the tire to be tested.

[0046] Here, it can be understood that the inclined bracket 1 is used to support the laser module 2, that is, to support the laser module 2 at a suitable projection position, so that the laser image projected by the laser module 2 can cover the surface of the tire to be tested. The laser module 2 is fixed relative to the tire to be tested in an inclined state. That is, when the inclined bracket 1 supports the laser module 2, the central axis of the laser module 2 forms an inclined angle with the plane where the wheel hub of the tire to be tested is located. The laser module 2 is used to project a laser image onto the surface of the tire to be tested. The camera device 200 acquires the laser image and analyzes the tire's positioning information based on the deformation and spacing of the laser image.

[0047] Specifically, laser module 2 is mounted on inclined support 1. Laser module 2 projects a laser image onto the surface of the tire, creating a laser image on the tire surface. Camera device 200 captures the laser image on the tire surface and analyzes the laser image to obtain the tire's positioning information. Laser module 2 can project multiple laser beams onto the tire surface to form laser spots, i.e., a laser image. Camera device 200 captures multiple laser spots and analyzes data such as the length, spacing, and deformation of these laser spots to obtain the tire's positioning information, such as the tire's tilt angle. Laser module 2 is tilted under the support of inclined support 1, i.e., relative to the rim of the tire being tested. The laser module 100 emits laser light at an angle, meaning the plane is tilted. This design ensures a small distance between the laser module 2 and the tire while maintaining a sufficient projection distance. This allows the laser to cover the tire surface, increasing the projection range and preventing significant distortion of the laser image projected onto the tire surface. This improves the clarity of the laser image and enhances the recognition accuracy of the camera device 200. Simultaneously, this design keeps the center of gravity of the laser module 2 as close to the tire as possible, reducing the possibility of lateral tilting of the four-wheel alignment measuring device. Furthermore, this design reduces the recognition difficulty for the camera device 200 and improves the accuracy of the vehicle inspection results.

[0048] By adopting the above technical solution, while ensuring the miniaturization of the vehicle detection equipment and the small distance between the laser component 100 and the tire, the laser image projected by the laser component 100 covers the tire surface, thereby improving the recognition accuracy of the laser image and thus improving the accuracy of the detection results of the vehicle detection equipment.

[0049] In one embodiment, the tilt angle ranges from 0° to 60°.

[0050] Here, it can be understood that during four-wheel alignment measurement, the laser component 100 is positioned on the side of the wheel hub facing the tire to be tested, and located diagonally below the wheel hub. The laser element projects a laser image onto the surface of the tire to be tested from diagonally below to diagonally above. At this time, the central axis of the laser element forms an angle with the plane where the wheel hub of the tire to be tested is located, with the angle ranging from 0° to 60°. The laser element projects the laser image onto the surface of the tire to be tested at the aforementioned angle, expanding the area covered by the laser image on the tire, thereby improving the clarity of the laser image acquired by the camera device 200, and thus improving the accuracy of the detection results of the vehicle inspection equipment.

[0051] Optionally, the tilt angle can be in the range of 15°, 30° or 45°.

[0052] By adopting the above technical solution, the area covered by the laser image on the tire is expanded, thereby improving the clarity of the laser image acquired by the camera device 200, and thus improving the accuracy of the detection results of the vehicle detection equipment.

[0053] In one embodiment, the laser module 2 includes a laser element 21 for projecting laser light and a grating element 22 for forming a laser image from the laser light, the grating element 22 being located on the light-emitting aperture 211 of the laser element 21.

[0054] Here, it can be understood that the grating element 22 can divide the laser into multiple laser beams, thereby forming multiple laser spots on the tire surface, and the multiple laser spots form a laser image.

[0055] Specifically, each laser spot has a preset shape and a preset length, and multiple laser spots are spaced at a preset distance. The camera device 200 captures multiple laser spots, and by analyzing the length, spacing, deformation, and other data of multiple laser spots, the tire's positioning information, such as the tire's tilt angle, is finally obtained.

[0056] By adopting the above technical solution, the grating element 22 enables the laser emitted by the laser element 21 to form a laser image, which is beneficial for the camera device 200 to acquire and easily analyze the tire positioning information.

[0057] In one embodiment, the laser assembly 100 further includes a laser housing 3, which covers the laser element 21 and has a laser opening 31. A grating element 22 is disposed in the laser opening 31, and the grating element 22 is spaced apart from the laser element 21.

[0058] Here, it can be understood that the laser housing 3 is used to protect the laser element 21 and prevent the laser element 21 from being damaged.

[0059] Specifically, the laser element 21 is housed inside the laser housing 3, and the laser housing 3 has a laser opening 31. The laser opening 31 is directly opposite the light-emitting hole 211 of the laser element 21, so that the laser of the laser element 21 can be emitted from the laser opening 31.

[0060] By adopting the above technical solution, the protection performance of the laser element 21 is improved; in addition, the laser housing 3 is provided with a laser opening 31, which is conducive to fixing the grating element 22 and makes the grating element 22 and the laser element 21 spaced apart, which is conducive to the grating element 22 dividing the laser into multiple lasers.

[0061] In one embodiment, the grating element 22 has a plurality of parallel slits.

[0062] Here, it can be understood that the grating element 22 is used to divide the laser emitted by the laser element 21 into multiple parallel laser beams, thereby forming multiple parallel laser spots on the tire surface.

[0063] Specifically, multiple laser spots are arranged in parallel and spaced on the tire surface. The camera device 200 captures multiple laser spots and analyzes data such as the length, spacing, and deformation of the multiple laser spots to obtain the tire's positioning information, such as the tire's tilt angle.

[0064] By adopting the above technical solution, the camera device 200 can more easily analyze the tire positioning information.

[0065] In one embodiment, the number of parallel slits ranges from 15 to 30.

[0066] Here, it can be understood that the number of parallel slits is preferably 21, so that the laser element 21 projects 21 laser spots onto the tire surface. The number of 21 laser spots is more conducive to the camera device 200 calculating the laser image data, thereby analyzing the tire's positioning information.

[0067] By adopting the above technical solution, the number of parallel slits within the above range enables the laser element 21 to form a suitable number of laser spots on the surface of the tire under test, thereby facilitating the acquisition and analysis by the camera device 200.

[0068] In one embodiment, the inclined support 1 includes a base frame 11, an upright frame 12, and an inclined support 13. The upright frame 12 is erected on the base frame 11, and the inclined support 13 is disposed on the upright frame 12. The inclined support 13 is provided with an inclined surface 131 that is inclined at an angle to the plane where the hub of the tire to be tested is located. The laser module 2 is disposed on the inclined surface 131, so that the central axis of the laser module 2 is inclined at an angle to the plane where the hub of the tire to be tested is located.

[0069] Here, it can be understood that the base frame 11 is used to support the upright frame 12 and the inclined frame 13. The upright frame 12 is erected on the base frame 11, that is, the upright frame 12 is vertically erected on the base frame 11, and the inclined frame 13 is erected on the upright frame 12. At the same time, the inclined frame 13 is provided with an inclined surface 131, which is used to support the laser module 2, so that the laser module 2 can be in an inclined state.

[0070] Specifically, the inclined surface 131 is inclined at an angle to the plane where the hub of the tire to be tested is located, that is, the inclined surface 131 can make the central axis of the laser module 2 inclined at an angle to the plane where the hub of the tire to be tested is located.

[0071] By adopting the above technical solution, the tilt setting of laser module 2 was achieved.

[0072] In one embodiment, the cross-section of the upright 12 is smaller than the side of the base frame 11 that connects with the upright 12.

[0073] By adopting the above technical solution, the mechanical strength and lightweight of the inclined support 1 are guaranteed while ensuring that the inclined support 1 has a certain height.

[0074] In one embodiment, the inclined frame 13 includes a connecting part 132 and a support part 133 connected to the connecting part 132. The connecting part 132 is connected to the upright frame 12. The support part 133 is provided with an inclined surface 131 and is inclined relative to the connecting part 132.

[0075] Here, it can be understood that a part of the inclined frame 13 is connected to the upright frame 12, and the other part of the inclined frame 13 is used to support the laser module 2.

[0076] By adopting the above technical solution, the inclined frame 13 includes a connecting part 132 and a supporting part 133, which realizes that the laser module 2 is inclinedly installed on the upright frame 12.

[0077] In one embodiment, at least one of the base frame 11, the upright frame 12, and the inclined frame 13 is provided with a weight reduction hole 134.

[0078] Here, it can be understood that the weight reduction hole 134 can be opened on the surface of the base frame 11, the upright frame 12 and the inclined frame 13, or it can be set through the frame.

[0079] By adopting the above technical solution, the inclined support 1 is made lighter.

[0080] In one embodiment, the base frame 11 is provided with a limiting groove 111, and the upright frame 12 is inserted into the limiting groove 111, with the groove wall of the limiting groove 111 abutting against the bottom of the upright frame 12.

[0081] Here, it can be understood that the limiting groove 111 is used to limit the upright body 12, so that the upright body 12 is erected on the base frame 11.

[0082] Specifically, the shape and size of the limiting groove 111 match the shape and size of the bottom of the upright body 12, so that the upright body 12 can be inserted into the limiting groove 111. The groove wall of the limiting groove 111 abuts against the bottom of the upright body 12, so that the groove wall of the limiting groove 111 can apply a supporting force to the upright body 12.

[0083] By adopting the above technical solution, the limiting groove 111 limits the movement of the upright body 12 and makes the upright body 12 stand on the base frame 11.

[0084] In one embodiment, the base frame 11 is provided with reinforcing ribs 112, which are located on the surface that is in contact with the upright frame 12.

[0085] By adopting the above technical solution, the reinforcing rib 112 is used to improve the mechanical strength of the base frame 11, so that the base frame 11 exerts a greater supporting force on the upright frame 12, thereby improving the stability of the upright frame 12.

[0086] In one embodiment, the laser assembly 100 further includes a laser housing 3, which covers the laser element 21 and has a laser opening 31.

[0087] Here, it can be understood that the laser housing 3 is used to protect the laser element 21 and prevent the laser element 21 from being damaged.

[0088] Specifically, the laser element 21 is housed inside the laser housing 3, and the laser housing 3 has a laser opening 31. The laser opening 31 is directly opposite the light-emitting hole 211 of the laser element 21, so that the laser of the laser element 21 can be emitted from the laser opening 31.

[0089] By adopting the above technical solution, the protection performance of the laser element 21 is improved.

[0090] Secondly, a four-wheel alignment measuring device is provided, including a camera device 200 and the aforementioned laser component 100, wherein the camera device 200 is used to acquire a laser image projected by the laser component 100 onto the surface of the tire to be tested.

[0091] Here, it can be understood that the camera device 200 has the function of capturing and analyzing laser images. After acquiring the laser image, the camera device 200 can obtain the tire positioning information by analyzing the laser image.

[0092] By adopting the above technical solution, in addition to the advantages of the laser component 100 in the above embodiment, the four-wheel alignment measuring device of this embodiment also has the advantage of high accuracy of the detection results.

[0093] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser assembly, characterized by, The application relates to a laser module for a tire testing device. The inclination angle ranges from 0 to 60 degrees.

2. The laser assembly of claim 1, wherein, The laser module comprises a laser element for projecting a laser and a grating element for forming the laser image.

3. The laser assembly of claim 1, wherein, The laser module further comprises a laser housing which is arranged outside the laser element and is provided with a laser opening, and the grating element is arranged in the laser opening and is spaced apart from the laser element.

4. The laser assembly of claim 3, wherein the laser assembly is configured to be mounted to a substrate by a plurality of fasteners. The grating element is provided with a plurality of parallel slits.

5. The laser assembly of claim 3, wherein, The inclined support comprises a base frame, a vertical frame and an inclined frame, the vertical frame is vertically arranged on the base frame, the inclined frame is arranged on the vertical frame, the inclined frame is provided with an inclined surface which is inclined at an angle with respect to the plane where the hub of the tire to be tested is located, and the laser module is arranged on the inclined surface so that the central axis of the laser module is inclined at an angle with respect to the plane where the hub of the tire to be tested is located.

6. The laser assembly of any one of claims 1 to 5, wherein, The cross section of the vertical frame is smaller than the side surface of the base frame where the vertical frame is connected.

7. The laser assembly of claim 6, wherein the laser assembly is configured to be mounted to a substrate by a plurality of fasteners. The inclined frame comprises a connecting portion and a supporting portion connected with the connecting portion, the connecting portion is connected with the vertical frame, the supporting portion is provided with the inclined surface, and the supporting portion is inclined with respect to the connecting portion.

8. The laser assembly of claim 6, wherein, At least one of the base frame, the vertical frame and the inclined frame is provided with a weight-reducing hole.

9. The laser assembly of claim 6, wherein, The base frame is provided with a limiting groove, the vertical frame is inserted into the limiting groove, and the groove wall of the limiting groove is in abutment with the bottom of the vertical frame.

10. The laser assembly of claim 6, wherein, The base frame is provided with a reinforcing rib on the surface where the vertical frame is connected.

11. The laser assembly of claim 6, wherein, The application further relates to a tire testing device which comprises a camera and the laser module according to any one of claims 1 to 11, and the camera is used to acquire the laser image projected by the laser module on the surface of the tire to be tested.

12. A four-wheel alignment measuring device characterized by, ​

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