Device for confirming Mf point in reversing view

Abstract

The utility model provides an Mf point confirmation device in a reversing view field, which is used for being installed on a three-dimensional H point device for use and comprises a connecting rod, one end of the connecting rod is provided with an installation assembly connected with the three-dimensional H point device, and the other end of the connecting rod is provided with a universal supporting assembly. One end of the bearing frame is connected with the universal supporting assembly, the other end of the bearing frame is provided with a bearing assembly used for installing a camera, and the bearing frame can freely rotate along the connecting end of the bearing frame and the universal supporting assembly. The device is combined with a three-dimensional H-point device, so that the Mf point can be quickly confirmed, the positioning consistency of the Mf point is better, the installation is convenient, the spatial rotation can be realized, the confirmation by a plurality of workers is not needed, and the data accuracy and the test efficiency are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing test, in particular to a device for confirming an Mf point in a reversing field of vision. Background Art

[0002] In order to avoid collisions when reversing and facilitate the driver to observe and understand the people and objects behind the vehicle, the driver should be provided with at least one means of rear-view or detection, including direct vision, rearview mirror, rear-view camera system, and rear detection system. In the rear-view camera system test, according to the current test standards, the Mf point needs to be found. According to the provisions of the "UNR158 Reversing Monitoring System Regulations", the Mf point is located 635mm vertically above the H point and 96mm behind the H point. The confirmation of the Mf point is particularly important in the reversing field of view test.

[0003] The Mf point is a spatial position, and it will change for different vehicles. During the test, although the position can be found using three coordinates, it is very inconvenient and inaccurate to accurately locate this point because it is a spatial point, which will lead to inaccurate test results. At present, the determination of the position of the Mf point requires the cooperation of multiple people and takes a long time. The data obtained is not accurate enough and the consistency is poor, which directly leads to insufficient persuasiveness.

[0004] Therefore, in view of this, a device for confirming the Mf point in the reversing field of view is proposed to solve the above technical problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a device for confirming the Mf point in the reversing field of view to solve the technical problems raised in the above background technology that currently when confirming the Mf point, a large amount of manpower and material resources are required, and the data obtained is not accurate enough and has poor consistency.

[0006] To achieve the above object, the utility model provides the following technical solution, a device for confirming the Mf point in the reversing field of view, which is used to be installed on a three-dimensional H point device, including:

[0007] A connecting rod, one end of which is provided with a mounting assembly connected to the three-dimensional H-point device;

[0008] A universal support assembly, disposed at the other end of the connecting rod; and

[0009] A receiving frame has one end connected to the universal support assembly and the other end is provided with a receiving assembly for mounting a camera. The receiving frame can rotate freely along the connection end between the receiving frame and the universal support assembly.

[0010] In a preferred embodiment, the mounting assembly includes a U-shaped frame, the U-shaped frame is provided with a cavity for accommodating a vertical pole of a three-dimensional H-point device, and fixing holes for mounting bolts are provided on both sides of the opening of the U-shaped frame.

[0011] In a preferred embodiment, the universal support assembly includes:

[0012] A support rod, wherein a mounting seat is provided at one end of the connecting rod away from the mounting assembly, and the support rod is fixedly mounted on the mounting seat; and

[0013] A universal joint is arranged on the top of the support rod, and a connecting seat is arranged at the end of the receiving frame, and the connecting seat is fixedly arranged at the movable end of the universal joint.

[0014] In a preferred embodiment, the distance between the center line of the U-shaped frame and the axis of the support rod is 196 mm.

[0015] In a preferred embodiment, a locking assembly is also provided on the universal joint.

[0016] In a preferred embodiment, the receiving assembly includes a supporting plate, which is arranged on one end of the receiving frame away from the universal support assembly, and an adjustment groove is formed on the supporting plate along the extending direction of the receiving frame.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When using the device, first adjust the vehicle to a state where its mass, tire pressure, and environmental conditions meet the test, then place the three-dimensional H-point device on the driver's seat, and then adjust the seat so that the error between the designed R point of the vehicle and the actual measured value is within the allowable range. Adjust the vertical pole of the three-dimensional H-point device to make it perpendicular to the line connecting the inner and outer R points of the three-dimensional H-point device, then connect the mounting assembly at one end of the connecting rod to the vertical pole of the three-dimensional H-point device, and make the vertical distance between the active point of the universal support assembly and the R point 635mm, finally fix the camera on the receiving assembly, so that the horizontal distance between the camera imaging plane and the active point of the universal support assembly is 100mm, and finally adjust the height of the camera to make it horizontal, and then the subsequent Mf point confirmation work can be carried out. By combining this device with the three-dimensional H-point device, the Mf point can be quickly confirmed, and the Mf point positioning consistency is better, the installation is convenient, and spatial rotation can be realized, without the need for multiple staff to confirm, which effectively improves the accuracy of the data and the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a device for confirming the Mf point in the reversing field of view provided by the utility model;

[0021] Reference numerals:

[0022] 101, connecting rod; 102, mounting seat; 103, U-shaped frame; 104, fixing hole;

[0023] 201, support rod; 202, universal joint; 203, locking assembly;

[0024] 301, receiving frame; 302, connecting seat; 303, supporting plate; 304, adjusting slot. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] Example:

[0027] As shown in the figure, the utility model provides an Mf point confirmation device in a reversing field of view, which is used to be installed on a three-dimensional H-point device, including a connecting rod 101, one end of which is provided with a mounting assembly connected to the three-dimensional H-point device, and the mounting assembly includes a U-shaped frame 103, and a cavity for accommodating a vertical pole of the three-dimensional H-point device is opened on the U-shaped frame 103, and fixing holes 104 for installing bolts are arranged on both sides of the opening of the U-shaped frame 103.

[0028] When in use, the three-dimensional H-point device is placed on the driver's seat of the vehicle, and the seat is adjusted so that the error between the designed R-point position of the vehicle and the actual measured value is within the allowable range (the deviation between the H-point coordinate and the factory-set R-point coordinate in each direction is ≤±5mm), and then the three-dimensional H-point device is adjusted so that the vertical pole of the three-dimensional H-point device is perpendicular to the line connecting the inner and outer R points of the three-dimensional H device, and then the U-shaped frame 103 is mounted on the vertical pole of the three-dimensional H-point device for use, and bolts are inserted into the fixing holes 104, and nuts are screwed on the ends of the bolts. The U-shaped frame 103 is deformed by tightening the nuts to firmly fix the U-shaped frame 103 on the vertical pole of the three-dimensional H-point device to complete the installation of the device.

[0029] As shown in the figure, in this embodiment, a universal support assembly is provided at the other end of the connecting rod 101, and the universal support assembly includes a supporting rod 201, and a mounting seat 102 is provided at one end of the connecting rod 101 away from the mounting assembly, and the supporting rod 201 is fixedly provided on the mounting seat 102, and a universal joint 202 is provided at the top of the supporting rod 201, and a connecting seat 302 is provided at the end of the receiving frame 301, and the connecting seat 302 is fixedly provided at the movable end of the universal joint 202. A locking assembly 203 is also provided on the universal joint 202.

[0030] The three-dimensional H-point device is used to determine the H-point of the car seat. The H-point refers to the intersection of the torso line and the center line of the thigh of the three-dimensional H-point device, and the R-point is the seat reference point, which refers to the design H-point specified by the manufacturer. When determining the R-point, you must first confirm the G-point. The G-point is the intersection of the plumb tangent of the seat back and the seat cushion in the symmetrical center plane of the seat. The relative coordinates of the R-point to the G-point are (-100, 0, 75), that is, 100mm forward and 75mm upward from the G-point. The Mf point is 635mm vertically above the H-point and 96mm behind the H-point. During installation, the U-shaped frame 103 can also be slid on the vertical pole of the three-dimensional H-point device so that the vertical distance between the center of the universal joint 202 and the R point is 635mm, and the center line of the U-shaped frame 103 and the axial distance between the support rod 201 are 196mm. The vertical pole of the three-dimensional H-point device is marked with scale lines, and then the center of the universal joint 202 is adjusted in height through the locking assembly 203. The locking assembly 203 can be a top screw that abuts the center of the ball, thereby facilitating the rapid positioning of the device.

[0031] As shown in the figure, in this embodiment, a receiving frame 301 is provided at the end of the universal support assembly, and a receiving assembly for mounting a camera is provided at one end of the receiving frame 301, and the receiving frame 301 can rotate freely along the connection end with the universal support assembly. The receiving assembly includes a supporting plate 303, which is provided on the receiving frame 301 at one end away from the universal support assembly, and an adjustment slot 304 is provided on the supporting plate 303 along the extension direction of the receiving frame 301.

[0032] After completing the installation of the device, the camera can be installed on the supporting plate 303, and the position of the camera can be fixed by passing the bolt through the adjustment slot 304 and then screwing it to the camera. The position of the camera can also be slid along the adjustment slot 304 to adjust the position of the camera, so that the horizontal distance between the imaging plane of the camera and the center of the ball of the universal joint 202 is 100 mm, and the installation of the camera is completed.

[0033] The test points are marked on the camera by a three-coordinate measuring machine. The method for confirming the test points by the three-coordinate measuring machine is as follows: first establish a coordinate system, fix the camera horizontally so that the camera lens faces left, evenly mark 8 points in a circumferential direction on the camera lens installation plane circle to obtain a circle and a center of the circle, mark 6 points on the horizontal ground to obtain a plane, and mark 2 points on the edge of the camera display screen to obtain a straight line. Use the obtained center of the circle (coordinate origin), plane, and straight line to establish a coordinate system by a three-coordinate measuring machine, rotate the coordinate system so that the X-axis points to the left, the Y-axis points forward, and the Z-axis points upward. The coordinate system at this time is the required coordinate system, and the X-axis is parallel to the camera shooting direction. Finally, on the camera screen, the coordinates of the test point are (X, 0, 0), and the point on the X-axis on the camera screen is the test point. This point confirmation method is a well-known technical means for those in this field, and will not be repeated here.

[0034] When the horizontal distance between the imaging plane of the camera and the center of the universal joint 202 is 100 mm, the vertical distance between the imaging plane of the camera and point H is 96 mm. The test point on the imaging plane of the camera is point Mf. It can be understood that in some implementation processes, in the same coordinate system, if the coordinate of point R is (0.0.0), the coordinate of point Mf should be (96.0.635), so that point Mf can be quickly confirmed without the assistance of multiple staff members, and the point confirmation accuracy and consistency are higher, which is more convincing.

[0035] Specific usage and beneficial effects of the utility model:

[0036] When the device is used, the vehicle is first adjusted to a state where its mass, tire pressure, and environmental conditions meet the test conditions, and then the three-dimensional H-point device is placed on the driver's seat, and then the seat is adjusted so that the error between the designed R point of the vehicle and the actual measured value is within the allowable range. The vertical pole of the three-dimensional H-point device is adjusted to be perpendicular to the line connecting the inner and outer R points of the three-dimensional H-point device, and then the mounting assembly at one end of the connecting rod 101 is connected to the vertical pole of the three-dimensional H-point device, and the vertical distance between the active point of the universal support assembly and the R point is 635mm. Finally, the camera is fixed on the receiving assembly so that the horizontal distance between the camera imaging plane and the active point of the universal support assembly is 100mm. Finally, the height of the camera is adjusted to make it horizontal, and the subsequent Mf point confirmation work can be carried out. By combining the device with the three-dimensional H-point device, the Mf point can be quickly confirmed, and the consistency of the Mf point positioning is better, the installation is convenient, and the spatial rotation can be realized. There is no need for multiple staff members to confirm, which effectively improves the accuracy of the data and the test efficiency.

[0037] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A device for confirming the Mf point in the reversing field of view, which is used to be installed on a three-dimensional H point device, characterized in that: Included are: A connecting rod (101), one end of which is provided with a mounting assembly connected to the three-dimensional H-point device; A universal support assembly is arranged at the other end of the connecting rod (101); and A receiving frame (301) has one end connected to the universal support assembly and the other end provided with a receiving assembly for mounting a camera. The receiving frame (301) can rotate freely along the connection end between the receiving frame and the universal support assembly.

2. The Mf point confirmation device in the reversing field of view according to claim 1, characterized in that: The mounting assembly comprises a U-shaped frame (103), the U-shaped frame (103) is provided with a cavity for accommodating a three-dimensional H-point device upright pole, and both sides of the opening of the U-shaped frame (103) are provided with fixing holes (104) for installing bolts.

3. The Mf point confirmation device in the reversing field of view according to claim 2 is characterized in that: The universal support assembly comprises: A support rod (201), a mounting seat (102) being arranged on one end of the connecting rod (101) away from the mounting assembly, and the support rod (201) being fixedly arranged on the mounting seat (102); and The universal joint (202) is arranged on the top of the support rod (201), and a connecting seat (302) is arranged at the end of the supporting frame (301), and the connecting seat (302) is fixedly arranged on the movable end of the universal joint (202).

4. The device for confirming the Mf point in the reversing field of view according to claim 3, characterized in that: The distance between the center line of the U-shaped frame (103) and the axis line of the support rod (201) is 196 mm.

5. The device for confirming the Mf point in the reversing field of view according to claim 3, characterized in that: A locking assembly (203) is also provided on the universal joint (202).

6. The device for confirming the Mf point in the reversing field of view according to claim 1, characterized in that: The receiving assembly comprises a supporting plate (303), the supporting plate (303) being arranged on one end of the receiving frame (301) away from the universal support assembly, and an adjusting groove (304) being provided on the supporting plate (303) along the extending direction of the receiving frame (301).

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