Calibration assembly and four-wheel alignment calibration device

Abstract

A calibration assembly, comprising: a calibration box (1) and calibration components (2) arranged in the calibration box, wherein the calibration box (1) is provided with a calibration space, and the calibration components (2) are arranged in the calibration space and are connected to the inner top surface of the calibration box (1). The calibration assembly defines a calibration direction along the horizontal orientation, and the calibration assembly is used for realizing calibration by means of the calibration components (2) on the basis of the calibration direction. The calibration components (2) are connected to the inner top surface of the calibration box (1), so that the calibration components are arranged upside down in the calibration space, and the top of the calibration box shields ambient light from above the calibration assembly, to reduce the likelihood of ambient light interfering with the calibration components (2), improving the definition when the calibration components (2) are captured by a four-wheel alignment measurement device, and further improving the accuracy of calibration results. Also disclosed is a four-wheel alignment calibration device.

Description

Calibration components and four-wheel alignment calibration devices

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 2, 2024, with application number 202410161157.6 and invention name “Calibration component and four-wheel alignment calibration device”, the entire content of which is incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of four-wheel alignment calibration devices, and more specifically, to a calibration component and a four-wheel alignment calibration device. Background Art

[0003] With the rapid growth of my country's science and technology and economy, the number of cars owned by residents has increased rapidly, and vehicle inspection technology is also constantly evolving. As a key component of vehicle inspection, wheel alignment testing plays a crucial role in overall vehicle safety. Abnormal wheel alignment can lead to a series of economic and safety issues, including abnormal tire wear, deviation, wheel shimmy, heavy steering, and increased fuel consumption, directly impacting vehicle safety and daily use.

[0004] At present, the vehicle four-wheel alignment instruments on the market include four-wheel alignment measuring devices and four-wheel alignment calibration devices. Among them, the four-wheel alignment measuring device calibrates its own position by obtaining the image of the calibration component of the four-wheel alignment measuring device. During the calibration process, the calibration component is easily interfered by ambient light, resulting in unclear images obtained by the four-wheel alignment measuring device, affecting the accuracy of the calibration. Technical issues

[0005] The purpose of this application is to provide a calibration component and a four-wheel alignment calibration device to solve the technical problem in the prior art that the calibration component is easily disturbed by ambient light, resulting in unclear images obtained by the four-wheel alignment measurement device, thereby affecting the calibration accuracy. Technical Solutions

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] In a first aspect, a calibration component is provided, comprising:

[0008] A calibration box and a calibration component arranged in the calibration box, the calibration box is provided with a calibration space, the calibration component is arranged in the calibration space and connected to the inner top surface of the calibration box, the calibration component defines a horizontal calibration direction, and the calibration component is used to realize calibration based on the calibration direction through the calibration component.

[0009] By adopting the above technical solution, the calibration component is connected to the inner top surface of the calibration box, so that the calibration component is placed upside down in the calibration space. In this way, the top of the calibration box is used to block the ambient light from above the calibration component, reducing the possibility of ambient light interfering with the calibration component, improving the clarity of the calibration component when photographed by the four-wheel alignment measurement device, and thereby improving the accuracy of the calibration results.

[0010] In one embodiment, the calibration box is further provided with a calibration opening communicating with the calibration space, and the calibration opening is used to expose the calibration component in the calibration direction.

[0011] In one embodiment, the calibration direction forms an inclination angle with the opening direction of the calibration opening, and the inclination angle ranges from 0° to 90°.

[0012] In one embodiment, the calibration assembly further includes a lighting component, which is disposed on the inner bottom surface of the calibration box, and the lighting range of the lighting component covers the calibration component.

[0013] In one embodiment, the lighting component is a lighting flat plate, and the lighting component is laid flat on the inner bottom surface of the calibration box.

[0014] In one embodiment, the calibration assembly further includes a reflector, which is disposed on the inner top surface of the calibration box and opposite to the illuminating element, and is used to reflect light emitted by the illuminating element.

[0015] In one embodiment, the calibration box includes a calibration cover and a calibration base, the calibration cover is arranged above the calibration base, the inner top surface of the calibration box is arranged on the calibration cover, the inner bottom surface of the calibration box is arranged on the calibration base, the calibration space is provided between the calibration cover and the calibration base, and the projected edge of the calibration cover on the calibration base along a direction perpendicular to the calibration base exceeds the calibration base.

[0016] In one embodiment, the calibration cover is parallel to the calibration base.

[0017] In one embodiment, the calibration box further includes a calibration support body, wherein the calibration support body connects the calibration cover body and the calibration base body, and the calibration support body, the calibration cover body and the calibration base body enclose the calibration opening.

[0018] In one embodiment, the calibration box is further provided with a light-transmitting cover provided on the calibration opening, and the light-transmitting cover is used to limit the passage of visible light and limit the passage of light of a preset wavelength.

[0019] In one embodiment, the light-transmitting cover is infrared glass, and the light of the preset wavelength is infrared light.

[0020] In one embodiment, the calibration component includes a calibration rod and a calibration ball provided on the calibration rod, the calibration rod is connected to the inner top surface of the calibration box, and the calibration ball is provided on the end of the calibration rod facing away from the inner top surface of the calibration box.

[0021] In one embodiment, the diameter of the calibration rod is smaller than the diameter of the calibration sphere.

[0022] In one embodiment, the calibration component further includes a connecting portion, wherein the connecting portion connects the calibration ball and the calibration rod, and a diameter of the connecting portion is smaller than a diameter of the calibration rod.

[0023] In one embodiment, the calibration component further includes a first transition portion, which smoothly transitions and connects the calibration ball and the connecting portion; the calibration component further includes a second transition portion, which smoothly transitions and connects the calibration rod and the connecting portion.

[0024] In one embodiment, the calibration assembly includes a plurality of calibration components, and the length of each calibration rod is different.

[0025] In a second aspect, a four-wheel alignment calibration device is provided, comprising a fixing member and the above-mentioned calibration assembly, wherein the fixing member is provided on the calibration assembly and is used to fix the calibration assembly on a lift carrying a vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] FIG1 is a three-dimensional structural diagram of a calibration component provided in an embodiment of the present application.

[0028] FIG2 is an exploded view of a calibration component provided in an embodiment of the present application from one perspective.

[0029] FIG3 is an exploded view 1 of the calibration component provided in an embodiment of the present application from another perspective.

[0030] FIG4 is a second exploded view of a calibration component provided in an embodiment of the present application from one perspective.

[0031] FIG5 is a second exploded view of the calibration component provided in an embodiment of the present application from another perspective.

[0032] FIG6 is a three-dimensional structural diagram of the calibration component provided in an embodiment of the present application.

[0033] FIG7 is a front view of the calibration component provided in an embodiment of the present application.

[0034] The reference numerals in the figures are:

[0035] 1. Calibration box; 2. Calibration components; 3. Illumination components; 4. Reflective components;

[0036] 11. Calibration opening; 12. Calibration cover; 13. Calibration seat; 14. Calibration support; 15. Translucent cover; 21. Calibration rod; 22. Calibration ball; 23. Connecting part; 24. First transition part; 25. Second transition part. Modes for Carrying Out the Invention

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0038] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate relative importance or the number of technical features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined. The following is a more detailed description of the specific implementation of this application in conjunction with specific embodiments:

[0041] As shown in Figures 1 and 2, an embodiment of the present application provides a calibration component, which is applied to a four-wheel aligner for performing four-wheel alignment detection on a vehicle, wherein the four-wheel aligner includes a four-wheel alignment measurement device and a four-wheel alignment calibration device. The four-wheel alignment calibration device includes a calibration component. The four-wheel alignment measurement device is used to obtain an image of the calibration component and then determine its own position, thereby completing the calibration of its own position. The calibration component of this embodiment can reduce the influence of ambient light, improve the clarity of the calibration image of the calibration component obtained by the four-wheel alignment measurement device, and thus improve the accuracy of the calibration. The following is an explanation through specific embodiments:

[0042] The calibration components of this embodiment include:

[0043] A calibration box 1 and a calibration component 2 arranged in the calibration box 1; wherein, the calibration component defines a calibration direction X along the horizontal direction, the calibration box 1 is provided with a calibration space, the calibration component 2 is arranged in the calibration space and is connected to the inner top surface of the calibration box 1, and the calibration component is used to realize calibration based on the calibration direction X through the calibration component 2.

[0044] Here, it can be understood that the calibration box 1 is used to accommodate the calibration component 2, so that the calibration component 2 is in a space with stable light brightness; specifically, the calibration box 1 is provided with a calibration space, wherein the calibration component 2 is provided in the calibration space, and the calibration direction X four-wheel alignment measurement device is provided in the calibration direction X, and at the same time, the camera mechanism of the four-wheel alignment measurement device can obtain an image of the calibration component 2 along the calibration direction X.

[0045] The calibration component 2 is connected to the inner top surface of the calibration box 1, that is, the calibration component 2 is inverted in the calibration space. Since the calibration component 2 is generally placed close to the ground for use, the calibration component 2 is mostly affected by ambient light from above the calibration component 2, such as the lights in the four-wheel alignment site, or sunlight in outdoor places. In this way, when the calibration component 2 is inverted in the calibration space, the ambient light will be blocked by the inner top surface of the top of the calibration box 1, reducing the possibility of the calibration component 2 being exposed to ambient light and improving the clarity of the image of the calibration component 2 taken by the four-wheel alignment measurement device.

[0046] The working principle of the calibration component provided in this embodiment is as follows:

[0047] The four-wheel alignment instrument includes four four-wheel alignment measurement devices and two calibration components. The four four-wheel alignment measurement devices are arranged one by one corresponding to the four tires of the vehicle. A calibration component is provided between two four-wheel alignment measurement devices located on the same side. At the same time, the four-wheel alignment vehicle device is located in the calibration direction X of the calibration component. The four-wheel alignment measurement device obtains a calibration image of the calibration component 2 in the calibration component based on the calibration direction X along the calibration direction X to calibrate its own position.

[0048] It needs to be further explained that, since the vehicle is placed on a horizontal plane during the four-wheel alignment, the connection line between the four-wheel alignment measuring devices on the same side is also parallel to the horizontal direction during the four-wheel alignment, so the calibration direction X of the calibration component is set to be parallel to the horizontal direction.

[0049] By adopting the above technical solution, the calibration component 2 is connected to the inner top surface of the calibration box 1, so that the calibration component 2 is placed upside down in the calibration space. In this way, the top of the calibration box 1 is used to block the ambient light from above the calibration component, reducing the possibility of ambient light interfering with the calibration component 2, improving the clarity of the calibration component 2 when photographed by the four-wheel alignment measurement device, and thereby improving the accuracy of the calibration results.

[0050] In one embodiment, the calibration box 1 is further provided with a calibration opening 11 communicating with the calibration space, and the calibration opening 11 is used to expose the calibration component 2 in the calibration direction X.

[0051] Here, it can be understood that the calibration box 1 is provided with a calibration space and a calibration opening 11, wherein the calibration component 2 is arranged in the calibration space, and the calibration opening 11 is connected to the calibration space. The calibration opening 11 is used to expose the calibration component 2 in the calibration direction X, that is, the four-wheel alignment measurement device is arranged in the calibration direction X, and at the same time, the camera mechanism of the four-wheel alignment measurement device can obtain an image of the calibration component 2 along the calibration direction X.

[0052] By adopting the above technical solution, the calibration component 2 can be exposed from the calibration opening 11 in the calibration direction X, which is beneficial for the camera mechanism of the four-wheel alignment measurement device to obtain an image of the calibration component 2 along the calibration direction X.

[0053] In one embodiment, the calibration direction X forms an inclination angle with the opening direction Y of the calibration opening, and the inclination angle ranges from 0° to 90°.

[0054] Optionally, the inclination angle is 15°, 30°, 45°, 60° or 75°.

[0055] Here, it can be understood that, since the vehicle is placed on a horizontal plane during the four-wheel alignment, the connection line between the four-wheel alignment measuring devices located on the same side is also parallel to the horizontal direction during the four-wheel alignment, so the calibration direction X of the calibration component is also set to be parallel to the horizontal direction; since the opening direction Y of the calibration opening 11 is set obliquely downward, the opening direction Y of the calibration opening 11 forms a second inclination angle with the calibration direction X, that is, the four-wheel alignment measuring device can photograph the calibration component 2 through the calibration opening 11 as long as it is arranged along the calibration direction X.

[0056] By adopting the above technical solution, the calibration direction X forms an inclination angle with the opening direction Y of the calibration opening 11, and the angle range of the calibration direction X takes into account the setting positions of the four-wheel alignment measurement device and the four-wheel alignment calibration device.

[0057] Please refer to FIG. 3 to FIG. 5 . In one embodiment, the calibration assembly further includes an illuminating member 3 . The illuminating member 3 is disposed on the inner bottom surface of the calibration box 1 . The illumination range of the illuminating member 3 covers the calibration component 2 .

[0058] Here, it can be understood that the lighting component 3 is used to emit light from the inner bottom surface of the calibration box 1 toward the inner top surface of the calibration box 1, that is, the lighting range of the lighting component 3 covers the calibration component 2, providing a uniform lighting environment for the calibration component 2.

[0059] By adopting the above technical solution, the lighting range of the lighting element 3 covers the calibration component 2, so that the calibration space forms a space with stable and uniform lighting, which improves the clarity of the calibration component 2 when being photographed.

[0060] In one embodiment, the lighting component 3 is a lighting flat plate, and the lighting component 3 is laid flat on the inner bottom surface of the calibration box 1 .

[0061] Here, it can be understood that in order to improve the uniformity of lighting in various parts of the calibration space, the lighting component 3 is set as a lighting flat plate, which is a surface light source, that is, it can emit light with high uniformity; the lighting flat plate is laid flat on the inner bottom surface of the calibration box 1, so that the area of ​​the lighting flat plate facing the calibration component 2 is large, so that the light emitted by the lighting flat plate can evenly cover the calibration component 2.

[0062] By adopting the above technical solution, the uniformity of illumination in the calibration space is improved, and the clarity of the calibration component 2 when being photographed is enhanced.

[0063] In one embodiment, the calibration component further includes a reflector 4, which includes but is not limited to a reflector. The reflector 4 is arranged on the inner top surface of the calibration box 1 and is arranged opposite to the lighting component 3. The reflector 4 is used to reflect the light emitted by the lighting component 3.

[0064] Here, it can be understood that in order to further improve the uniformity of lighting in various parts of the calibration space, a reflector 4 is provided on the opposite side of the lighting element 3, and the reflector 4 is used to reflect the light of the lighting element 3, so that the uniformity of lighting in the calibration space is improved; at the same time, the cost of the reflector 4 is lower than that of the lighting element 3. In this way, both the uniformity of lighting in the calibration space and the manufacturing cost are taken into account.

[0065] By adopting the above technical solution, the lighting uniformity of the calibration space is further improved.

[0066] In one embodiment, the calibration box 1 includes a calibration cover 12 and a calibration base 13. The calibration cover 12 is arranged above the calibration base 13. The inner top surface of the calibration box 1 is arranged on the calibration cover 12. The inner bottom surface of the calibration box 1 is arranged on the calibration base 13. A calibration space is provided between the calibration cover 12 and the calibration base 13. The projected edge of the calibration cover 12 on the calibration base 13 along the direction perpendicular to the calibration base 13 exceeds the calibration base 13.

[0067] Here, it can be understood that when the calibration assembly is used to calibrate the four-wheel alignment measuring device, the calibration assembly is placed on a horizontal plane, and the inner bottom surface of the calibration box 1 is parallel to the horizontal plane. Therefore, the direction perpendicular to the calibration base 13 is the vertical direction, and the calibration cover 12 is arranged above the calibration base 13, and the calibration component 2 is inverted and arranged on the calibration cover 12, and the calibration cover 12 is used to block the ambient light from above for the calibration component 2; in addition, the projection edge of the calibration cover 12 on the calibration base 13 along the direction perpendicular to the calibration base 13 exceeds the calibration base 13, thereby expanding the area of ​​the calibration cover 12 blocking the ambient light and improving the blocking effect.

[0068] By adopting the above technical solution, the shielding area of ​​the calibration cover 12 is expanded, the area of ​​the calibration box 1 shielding ambient light is further increased, and the influence of ambient light on the calibration component 2 is further reduced.

[0069] In one embodiment, the calibration cover 12 is parallel to the calibration base 13 .

[0070] Here, it can be understood that the calibration cover 12 can be tilted relative to the calibration base 13, that is, the inner top surface of the calibration cover 12 is tilted relative to the inner bottom surface of the calibration base 13, and the calibration cover 12 can also be parallel to the calibration base 13, that is, the inner top surface of the calibration cover 12 is parallel to the inner bottom surface of the calibration base 13.

[0071] By adopting the above technical solution, the calibration cover 12 is parallel to the calibration base 13, which can ensure the shielding effect of the calibration cover 12 and at the same time make the calibration box 1 miniaturized.

[0072] In one embodiment, the calibration box 1 further includes a calibration support 14 , which connects the calibration cover 12 and the calibration seat 13 . The calibration support 14 , the calibration cover 12 and the calibration seat 13 enclose a calibration opening 11 .

[0073] Here, it can be understood that the calibration support 14 is used to stand on the calibration base 13 and is also used to support the calibration cover 12 ; the calibration support 14 , the calibration cover 12 and the calibration base 13 enclose a calibration opening 11 .

[0074] Optionally, there are multiple calibration supports 14 , and the multiple calibration supports 14 are respectively arranged on multiple corners of the calibration base 13 . At the same time, the multiple calibration supports 14 support the same calibration cover 12 to improve the stability of the calibration cover 12 .

[0075] By adopting the above technical solution, the structure of the calibration box 1 is simple and stable.

[0076] In one embodiment, the calibration box 1 is further provided with a light-transmitting cover 15 provided on the calibration opening 11 . The light-transmitting cover 15 is used to limit the transmission of visible light and to limit the transmission of light of a preset wavelength.

[0077] Here, it can be understood that in order to further improve the clarity of the calibration component 2 when it is photographed by the four-wheel alignment measurement device, the lighting component 3 emits light of a preset wavelength to the calibration component 2, and the four-wheel alignment measurement device is used to obtain the light reflected back by the calibration component 2, thereby obtaining an image of the calibration component 2; since only light of a preset wavelength can pass through the transparent cover 15 to enter and exit the calibration space, this further reduces the impact of ambient light entering the calibration space on the calibration component 2.

[0078] By adopting the above technical solution, the possibility of ambient light entering the calibration space is further reduced, and the clarity of the image of the calibration component 2 is improved.

[0079] In one embodiment, since the calibration direction X forms an inclination angle with the opening direction Y of the calibration opening, the inclination angle ranges from 0° to 90°. Optionally, the inclination angle is 15°, 30°, 45°, 60° or 75°.

[0080] The calibration box is set to have a tilted light-transmitting cover 15 on the calibration opening 11. Compared with setting the light-transmitting cover 15 vertically, the tilted setting can effectively improve the reflection effect of ambient light, reduce the possibility of ambient light entering the calibration space, and improve the clarity of the image of the calibration component 2.

[0081] In one embodiment, the light-transmitting cover 15 is made of infrared glass, and the light of the predetermined wavelength is infrared light.

[0082] By adopting the above technical solution, the setting of the infrared glass allows only infrared rays to enter and exit the calibration space, which is beneficial for the four-wheel alignment measurement device to obtain the image of the calibration component 2 using infrared rays.

[0083] Please refer to Figures 6 and 7 at the same time. In one embodiment, the calibration component 2 includes a calibration rod 21 and a calibration ball 22 provided on the calibration rod 21. The calibration rod 21 is connected to the inner top surface of the calibration box 1, and the calibration ball 22 is provided on the end of the calibration rod 21 away from the inner top surface of the calibration box 1.

[0084] Here, it can be understood that the calibration rod 21 is used to support the calibration ball 22, and the calibration ball 22 is used for the four-wheel alignment measurement device to obtain an image;

[0085] Specifically, the calibration rod 21 is vertically arranged on the inner top surface of the calibration box 1; the calibration ball 22 is used for the four-wheel alignment measurement device to obtain an image, and the four-wheel alignment measurement device takes an image of the calibration ball 22 and determines the coordinate value according to the center of the calibration ball 22, thereby calibrating the position of the four-wheel alignment measurement device; the calibration rod 21 is used to fix the calibration ball 22 at a preset height, so that the four-wheel alignment measurement device can obtain the calibration ball 22 at the preset height, which is beneficial for the four-wheel alignment measurement device to determine the coordinate value.

[0086] Optionally, the calibration ball 22 is shaped like a sphere, and the camera of the four-wheel alignment measuring device can calculate the center of the calibration ball 22 from the side or front of the calibration ball 22. When calibrating the four-wheel alignment measuring device, images of the calibration ball 22 must be obtained from different calibration directions X, that is, the images of the calibration ball 22 obtained from different angles are all circular patterns.

[0087] The working principle of the calibration component 2 of this embodiment is as follows:

[0088] The calibration component 2 is fixed near the vehicle. For example, it can be set between two four-wheel alignment measurement devices corresponding to the tires one by one; the calibration rod 21 has a preset height, and the calibration rod 21 supports the calibration ball 22 so that the calibration ball 22 is located at the preset height. The four-wheel alignment measurement device is used to obtain the image of the calibration ball 22. The image of the calibration ball 22 is circular. The four-wheel alignment measurement device analyzes the center of the image of the calibration ball 22, and uses this to analyze the coordinate value, and then calibrates the position of the four-wheel alignment measurement device itself.

[0089] It needs to be further explained that the four-wheel alignment measurement device can capture images of the calibration ball 22 from multiple calibration directions X. Because no matter from which calibration direction X the image of the calibration ball 22 is captured, the image of the calibration ball 22 is circular and the position of the center of the circle remains unchanged. Therefore, the calibration ball 22 of this embodiment can be used to calibrate the four-wheel alignment measurement device in multiple directions.

[0090] By adopting the above technical solution, only one calibration component 2 is required to complete the calibration of the four-wheel alignment measurement device in multiple directions, thereby improving the consistency of the calibration results and reducing the errors of the calibration results.

[0091] In one embodiment, the diameter of the calibration rod 21 is smaller than the diameter of the calibration sphere 22 .

[0092] By adopting the above technical solution, the camera device of the four-wheel alignment measurement device is facilitated to obtain the image of the calibration ball 22.

[0093] In one embodiment, the calibration component 2 further includes a connecting portion 23 , which connects the calibration ball 22 and the calibration rod 21 . The diameter of the connecting portion 23 is smaller than the diameter of the calibration rod 21 .

[0094] Here, it can be understood that the connecting portion 23 is used to connect the calibration ball 22 and the calibration rod 21 .

[0095] Specifically, the connecting portion 23 is located between the calibration ball 22 and the calibration rod 21, one end of the connecting portion 23 is connected to the calibration ball 22, and the other end of the connecting portion 23 is connected to the calibration rod 21. The diameter of the connecting portion 23 is smaller than the diameter of the calibration rod 21, that is, the diameter of the connecting portion 23 is the smallest among the connecting portion 23, the calibration ball 22 and the calibration rod 21, which ensures the connection between the calibration ball 22 and the calibration rod 21, and also reduces the influence of the thicker calibration rod 21 on the measurement unit taking the image of the calibration ball 22; in addition, the diameter of the calibration rod 21 is larger than the diameter of the connecting portion 23, which ensures that the calibration rod 21 has a larger diameter, so that the calibration rod 21 has a stronger mechanical strength, so that the calibration rod 21 can provide sufficient support force for the calibration ball 22.

[0096] By adopting the above technical solution, the connecting portion 23 connects the calibration ball 22 and the calibration rod 21 , taking into account both the accuracy of the calibration operation of the calibration ball 22 and the supporting function of the calibration rod 21 .

[0097] In one embodiment, the calibration component further includes a first transition portion 24 , which smoothly transitions and connects the calibration ball 22 and the connecting portion 23 ; the calibration component further includes a second transition portion 25 , which smoothly transitions and connects the calibration rod 21 and the connecting portion 23 .

[0098] Here, it can be understood that the first transition portion 24 is used to connect the calibration ball 22 and the connecting portion 23, one end of the first transition portion 24 is connected to the calibration ball 22, and the other end of the first transition portion 24 is connected to the connecting portion 23; the second transition portion 25 is used to connect the calibration rod 21 and the connecting portion 23, one end of the second transition portion 25 is connected to the calibration rod 21, and the other end of the second transition portion 25 is connected to the connecting portion 23.

[0099] Specifically, the first transition portion 24 smoothly connects the calibration sphere 22 and the connecting portion 23 to avoid sharp corners between the calibration sphere 22 and the connecting portion 23 that affect the image of the calibration sphere 22; the second transition portion 25 smoothly connects the calibration rod 21 and the connecting portion 23 to avoid sharp corners between the calibration rod 21 and the connecting portion 23 that affect the image of the calibration sphere 22.

[0100] It needs to be further explained that the first transition portion 24 can also make the connection between the calibration ball 22 and the connecting portion 23 more stable; similarly, the second transition portion 25 can also make the connection between the calibration rod 21 and the connecting portion 23 more stable.

[0101] By adopting the above technical solution, the first transition portion 24 and the second transition portion 25 can reduce the possibility of sharp corners formed by connecting the calibration ball 22, the connecting portion 23 and the calibration rod 21 of different diameters in sequence, thereby reducing the influence of the image of the calibration ball 22; at the same time, the first transition portion 24 and the second transition portion 25 can make the calibration ball 22, the connecting portion 23 and the calibration rod 21 connected in sequence stable.

[0102] In one embodiment, the calibration assembly includes a plurality of calibration components 2 , and the length of each calibration rod 21 is different.

[0103] By adopting the above technical solution, multiple calibration components 2 can provide more calibration images. At the same time, the lengths of the multiple calibration components 2 are different, so that the multiple calibration components 2 can provide more calibration data, thereby improving the accuracy of calibration.

[0104] In a second aspect, a four-wheel alignment calibration device is provided, comprising a fixing member and the above-mentioned calibration assembly, wherein the fixing member is provided on the calibration assembly and is used to fix the calibration assembly on a lift supporting a vehicle.

[0105] Here, it is understood that the vehicle is parked on a lift during four-wheel alignment, and the calibration assembly is fixed on the lift via fixing members, which facilitates position calibration of the four-wheel alignment measuring device.

[0106] By adopting the above technical solution, on the basis of having the advantages of the calibration assembly of the above embodiment, the four-wheel alignment calibration device of this embodiment also has the advantage of high calibration accuracy.

[0107] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A calibration component, characterized in that include: A calibration box and a calibration component arranged in the calibration box, the calibration box is provided with a calibration space, the calibration component is arranged in the calibration space and connected to the inner top surface of the calibration box, the calibration component defines a calibration direction along the horizontal direction, and the calibration component is used to realize calibration based on the calibration direction through the calibration component.

2. The calibration assembly according to claim 1, wherein The calibration box is further provided with a calibration opening communicating with the calibration space, and the calibration opening is used to expose the calibration component in the calibration direction.

3. The calibration assembly according to claim 2, wherein The calibration direction forms an inclination angle with the opening direction of the calibration opening, and the inclination angle ranges from 0° to 90°.

4. The calibration assembly according to claim 1, wherein The calibration assembly further includes an illuminating element, which is disposed on the inner bottom surface of the calibration box, and the illumination range of the illuminating element covers the calibration component.

5. The calibration assembly according to claim 4, wherein: The lighting component is a lighting flat plate, and the lighting component is laid flat on the inner bottom surface of the calibration box.

6. The calibration assembly according to claim 5, wherein: The calibration component further includes a reflector, which is arranged on the inner top surface of the calibration box and is arranged opposite to the lighting component. The reflector is used to reflect the light emitted by the lighting component.

7. The calibration assembly according to claim 2, wherein: The calibration box includes a calibration cover and a calibration base. The calibration cover is arranged above the calibration base, the inner top surface of the calibration box is arranged on the calibration cover, and the inner bottom surface of the calibration box is arranged on the calibration base. The calibration space is provided between the calibration cover and the calibration base, and the projected edge of the calibration cover on the calibration base along a direction perpendicular to the calibration base exceeds the calibration base.

8. The calibration assembly according to claim 7, wherein: The calibration cover is parallel to the calibration base.

9. The calibration assembly according to claim 7, wherein: The calibration box further includes a calibration support body, which is connected to the calibration cover body and the calibration seat body. The calibration support body, the calibration cover body and the calibration seat body enclose the calibration opening.

10. The calibration assembly of claim 8, wherein: The calibration box is further provided with a light-transmitting cover arranged on the calibration opening, and the light-transmitting cover is used to limit the passage of visible light and limit the passage of light of a preset wavelength.

11. The calibration assembly according to claim 10, wherein: The light-transmitting cover is infrared glass, and the light of the preset wavelength is infrared light.

12. The calibration assembly of claim 1, wherein: The calibration component includes a calibration rod and a calibration ball arranged on the calibration rod. The calibration rod is connected to the inner top surface of the calibration box. The calibration ball is arranged on the end of the calibration rod away from the inner top surface of the calibration box.

13. The calibration assembly of claim 12, wherein: The diameter of the calibration rod is smaller than the diameter of the calibration ball.

14. The calibration assembly of claim 12, wherein: The calibration component further includes a connecting portion, which connects the calibration ball and the calibration rod, and a diameter of the connecting portion is smaller than a diameter of the calibration rod.

15. The calibration assembly of claim 14, wherein: The calibration component further includes a first transition portion, which smoothly transitions and connects the calibration ball and the connecting portion; the calibration component further includes a second transition portion, which smoothly transitions and connects the calibration rod and the connecting portion.

16. The calibration assembly of claim 12, wherein: The calibration assembly includes a plurality of calibration components, and the length of each calibration rod is different.

17. A four-wheel alignment calibration device, characterized in that: The invention comprises a fixing part and the calibration component according to any one of claims 1 to 9, wherein the fixing part is provided on the calibration component and is used to fix the calibration component on a lift that carries a vehicle.

Images