Line drawing auxiliary tool for automobile pedestrian protection experiment

Abstract

The utility model relates to the field of automobile experiment line drawing, and discloses an automobile pedestrian protection experiment line drawing auxiliary tool which comprises a vehicle plate and four universal wheels, the four universal wheels are arranged at the four corners of the lower end of the vehicle plate respectively, an adjusting assembly is arranged at the upper end of the vehicle plate and comprises an X sliding rail, a support, a Y sliding rail and a Z sliding rail, the X sliding rail is arranged at the upper end of the vehicle plate, and the Y sliding rail is arranged at the lower end of the vehicle plate. An X sliding block is arranged in the X sliding rail, a Y sliding block is arranged at the top end of the X sliding block, the Y sliding rail is slidably connected with the Y sliding block, the support is arranged on the outer wall of the Y sliding rail, the Z sliding rail is provided with the outer wall of the support, a Z sliding block is arranged in the Z sliding rail, a line drawing assembly is arranged on the outer wall of the Z sliding block, and the X sliding block, the Y sliding block and the Z sliding block are all provided with locking pieces. Through mutual cooperation of the X sliding rail and the X sliding block, the Y sliding rail and the Y sliding block and the Z sliding rail and the Z sliding block, adjustment of the line drawing assembly is more flexible and convenient, angle consistency during line drawing is good, and the accuracy of test area division is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive experiment line drawing, in particular to an auxiliary tool for automotive pedestrian protection experiment line drawing. Background Technique

[0002] In pedestrian protection experiments, it is necessary to determine the test area between the front end of the vehicle and the front windshield area according to regulations. Since the edge of the test area required by the regulations is at a specific angle to the horizontal plane, before a collision occurs, it is necessary to confirm and mark the edge positions of the test vehicle, so as to complete the division of the test area.

[0003] The prior art (publication number: CN203101059U) line drawing instrument for automotive pedestrian protection test discloses a line drawing instrument for automotive pedestrian protection test, including a base with wheels; a scale plate vertically fixed on the base; a line drawing rod hinged to the scale plate; and a marking member for line drawing located on the line drawing rod. In the utility model, the line drawing rod can rotate relative to the scale plate, and the scale on the scale plate can indicate the amount of rotation angle of the line drawing rod. According to the required line drawing angle position, marks are made at the edge positions of the test vehicle through the marking member on the line drawing rod. This structure is not only simple, but also the whole operation process is convenient and fast, and the marks made at the edge positions of the test vehicle are clear and accurate.

[0004] However, since the base of the prior art cannot be horizontally adjusted, the line drawing error is relatively large, and the adjustment in the X, Y, and Z directions of this device is inconvenient and inaccurate, and the test consistency is poor. For this reason, we propose an auxiliary tool for automotive pedestrian protection experiment line drawing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an auxiliary tool for automotive pedestrian protection experiment line drawing to solve the problems that the adjustment in the X, Y, and Z directions of the existing line drawing device is inconvenient and inaccurate, and the test consistency is poor.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an auxiliary tool for automotive pedestrian protection experiment line drawing, including a vehicle board and four universal wheels, the four universal wheels are respectively arranged at the four corners of the lower end of the vehicle board, an adjustment component is arranged at the upper end of the vehicle board, the adjustment component includes an X slide rail, a bracket, a Y slide rail and a Z slide rail, the X slide rail is arranged at the upper end of the vehicle board, an X slider is arranged inside the X slide rail, a Y slider is arranged at the top of the X slider, the Y slide rail is slidably connected with the Y slider, the bracket is arranged on the outer wall of the Y slide rail, the Z slide rail is arranged on the outer wall of the bracket, a Z slider is arranged inside the Z slide rail, a line drawing component is arranged on the outer wall of the Z slider, and locking members are arranged on the X slider, the Y slider and the Z slider.

[0007] The beneficial effects of this solution are as follows: The staff moves the vehicle board to the side of the vehicle through the universal wheels. By the cooperation of the X slider and the X slide rail, the line-drawing device can move along the axis of the vehicle body, so as to draw the edge line of the collision area. By the mutual cooperation of the Y slider and the Y slide rail, the line-drawing device can always fit the vehicle body, so as to accurately draw the edge line of the front collision area. By the mutual cooperation of the Z slider and the Z slide rail, the height adjustment of the line-drawing assembly is realized, so as to adjust the distance between the line-drawing assembly and the ground reference plane. When drawing a line, determine the angle and height of the line-drawing assembly, and fix the Z slider through the locking piece. At this time, by moving the X slider and simultaneously moving the Y slider, the line-drawing assembly is made to fit tightly against the vehicle body, so as to draw the accurate edge line of the collision area.

[0008] Preferably, as an improvement, the line-drawing assembly includes a first connecting rod and a line-drawing ruler. The first connecting rod is arranged on the outer wall of the Z slider, and the line-drawing ruler is arranged on the outer wall of the first connecting rod. The end of the line-drawing ruler facing the vehicle is set as the line-drawing end, and a protractor is provided at the end of the line-drawing ruler opposite to the line-drawing end.

[0009] The beneficial effects are as follows: The first connecting rod and the line-drawing ruler are hinged, and the line-drawing ruler rotates through the hinge point. The angle is measured by the protractor magnetically fixed on the back of the line-drawing ruler. Finally, the collision area from the front end of the vehicle to the front windshield area is divided through the line-drawing end, so as to quickly complete the line-drawing work.

[0010] Preferably, as an improvement, the first connecting rod can also be connected to a bumper corner marking assembly. The bumper corner marking assembly includes a square plate, a connecting block and a second connecting rod. The second connecting rod is arranged on the outer wall of the first connecting rod, the connecting block is arranged at the end of the second connecting rod far from the first connecting rod, and the square plate is arranged at the end of the connecting block far from the second connecting block.

[0011] The beneficial effects are as follows: By hinging the second connecting rod and the first connecting rod, the second connecting rod can rotate in the vertical direction. Then, by hinging the connecting block and the second connecting rod, the connecting block can rotate in the horizontal direction. Finally, the square plate fixedly connected to the connecting block can flexibly adjust the drawing angle, so as to facilitate the determination of the bumper corner by the square plate.

[0012] Preferably, as an improvement, a scale is provided on the outer wall of the first connecting rod, and an indicating block is provided on the outer wall of the line-drawing ruler.

[0013] The beneficial effects are as follows: The indicating block on the outer wall of the line-drawing ruler is tangent to the scale, and the angle of the line-drawing ruler can be quickly adjusted and determined according to the position of the indicating block, increasing the efficiency of line-drawing.

[0014] Preferably, as an improvement, limiting blocks are symmetrically arranged inside the X slide rail, the Y slide rail and the Z slide rail.

[0015] The beneficial effects are as follows: By using the limiting blocks to limit the sliding distances of the X slider, Y slider, and Z slider, it is possible to prevent the X slider, Y slider, and Z slider from derailing during the sliding process, which may affect the efficiency of line drawing.

[0016] Preferably, as an improvement, the universal wheels are set as height-adjustable universal wheels.

[0017] The beneficial effects are as follows: By setting the universal wheels as height-adjustable universal wheels, the plane of the vehicle board can be made parallel to the horizontal line, thereby improving the accuracy of the angle of the line-drawing component, and further ensuring the accuracy of the collision area division.

[0018] Preferably, as an improvement, a spirit level is provided around the side walls of the vehicle board.

[0019] The beneficial effects are as follows: The spirit level can help the staff quickly adjust the angle of the plane of the vehicle board.

[0020] Preferably, as an improvement, an installation block is provided between the X slider and the Y slider, and the installation block is set as a hollow square tube.

[0021] The beneficial effects are as follows: By using bolts to fix the X slider and the Y slider to the upper and lower ends of the hollow square tube respectively, and the bolts are located inside the hollow square tube, it is convenient to disassemble and install the X slider and the Y slider.

[0022] Preferably, as an improvement, a push rod is provided at the upper end of the vehicle board.

[0023] The beneficial effects are as follows: The push rod facilitates the staff to move the vehicle board to the side of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the line-drawing auxiliary tooling according to the embodiment of the present invention;

[0025] Figure 2 is a structural schematic diagram of the line-drawing component according to the embodiment of the present invention;

[0026] Figure 3 is a structural schematic diagram of the bar angle marking component according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following is further detailed through specific embodiments:

[0028] The reference numerals in the accompanying drawings of the specification include: vehicle board 1, universal wheels 2, X slide rail 3, bracket 4, Y slide rail 5, Z slide rail 6, X slider 7, Y slider 8, Z slider 9, first connecting rod 10, line-drawing ruler 11, square plate 12, connecting block 13, second connecting rod 14, indicating block 15, limiting block 16, installation block 17, push rod 18.

[0029] Embodiment

[0030] The embodiments are basically as shown in the attached Figures 1-3 drawing, such as Figure 1 shown, a drawing line auxiliary tooling for an automotive pedestrian protection experiment, including a vehicle board 1 and four universal wheels 2. The four universal wheels 2 are respectively fixedly installed at the four corners of the lower end of the vehicle board 1. The universal wheels 2 are set as height-adjustable universal wheels 2. A push rod 18 is fixedly installed at the rear side of the upper end of the vehicle board 1. Spirit levels are fixedly installed around the side wall of the vehicle board 1. An adjustment component is provided at the upper end of the vehicle board 1. The adjustment component includes an X slide rail 3, a bracket 4, a Y slide rail 5 and a Z slide rail 6. Limit blocks 16 are symmetrically and fixedly installed inside the X slide rail 3, the Y slide rail 5 and the Z slide rail 6, as Figure 1 shown. The X slide rail 3 is fixedly installed on the left side of the upper end of the vehicle board 1. An X slider 7 is slidably installed inside the X slide rail 3. An installation block 17 is fixedly installed at the upper end of the X slider 7 through bolts. The installation block 17 is set as a hollow square tube. A Y slider 8 is fixedly installed at the upper end of the installation block 17 through bolts. The Y slide rail 5 is slidably connected with the Y slider 8. The bracket 4 is fixedly installed at the upper end of the Y slide rail 5. The bracket 4 is set as an L-shaped bracket 4. The Z slide rail 6 is fixedly installed on the outer wall of the bracket 4. A Z slider 9 is slidably installed inside the Z slide rail 6. A drawing line component is provided on the outer wall of the Z slider 9. Locking members are provided on the X slider 7, the Y slider 8 and the Z slider 9. The locking members can be selected as screw locking or clamping block locking. In this scheme, screw locking is selected as the locking member.

[0031] The drawing line component includes a first connecting rod 10 and a drawing line ruler 11, as Figure 2 shown. The first connecting rod 10 is fixedly installed on the outer wall of the Z slider 9 through bolts. The drawing line ruler 11 is rotatably installed on the outer wall of the first connecting rod 10. A scale table is provided on the outer wall of the first connecting rod 10. An indicating block 15 is fixedly installed on the outer wall of the drawing line ruler 11. The drawing line ruler 11 is divided into two types with lengths of 700 mm and 1000 mm respectively. The end of the drawing line ruler 11 facing the vehicle is set as the drawing end, and the drawing end is coated with paint for contacting the vehicle body and drawing lines. An angle gauge is provided at the end of the drawing line ruler 11 opposite to the drawing end, and the angle gauge is fixedly installed on the back of the drawing line ruler 11 by magnetic attraction.

[0032] After the drawing line ruler 11 is disassembled through the hinge point with the first connecting rod 10, the first connecting rod 10 can also be connected to the bar angle marking component through the hinge point, as Figure 3 shown. The bar angle marking component includes a square plate 12, a connecting block 13 and a second connecting rod 14. The second connecting rod 14 is rotatably installed on the outer wall of the first connecting rod 10. The connecting block 13 is rotatably installed at the end of the second connecting rod 14 far from the first connecting rod 10. The square plate 12 is fixedly installed at the end of the connecting block 13 far from the second connecting block 13. The square plate 12 is a square transparent plate with a side length of 236 mm. The plane of the square plate 12 has a midpoint, and the midpoint is the intersection point of two perpendicular bisectors.

[0033] The specific implementation process is as follows:

[0034] When the staff divides the test area between the front end of the vehicle and the windshield area, first move the vehicle pedestrian protection experiment drawing auxiliary tooling to the left side wall of the vehicle to be drawn. Observe whether the vehicle board 1 is horizontal through the spirit levels around the vehicle board 1, and then cooperate with the universal wheels 2 to adjust the level of the vehicle board 1. After the vehicle board 1 is horizontally adjusted, rotatably connect the drawing ruler 11 with a length of 700 mm to the first connecting rod 10, determine that the angle between the 700 mm drawing ruler 11 and the horizontal plane is 45°, and then further adjust the accuracy through the angle gauge. Move the Z slider 9 to make the 700 mm drawing ruler 11 contact the highest point on the side of the vehicle. At this time, fix the Z slider 9 through the locking part, and then move the positions of the X slider 7 and the Y slider 8 to make the 700 mm drawing ruler 11 form a geometric locus with the highest contact point on the side of the vehicle, that is, form the left side surface reference line of the engine hood. After the left side surface drawing is completed, the vehicle pedestrian protection experiment drawing auxiliary tooling can be moved to the right side wall of the vehicle to repeat the above operations;

[0035] Then move the vehicle pedestrian protection experiment drawing auxiliary tooling to the front end of the vehicle, make the 700 mm drawing ruler 11 perpendicular to the horizontal plane, and cooperate with the indicating block 15 and the scale to make the 700 mm drawing ruler 11 tilt backward by 20° in the vertical direction. Then further adjust the accuracy through the angle gauge. Move the Z slider 9 to make the 700 mm drawing ruler 11 contact the bumper surface. At this time, fix the Z slider 9 through the locking part, and then move the positions of the X slider 7 and the Y slider 8 to make the 700 mm drawing ruler 11 form a geometric locus with the bumper surface, that is, form the upper reference line of the bumper;

[0036] Then make the 700 mm drawing ruler 11 perpendicular to the horizontal plane again, and cooperate with the indicating block 15 and the scale to make the 700 mm drawing ruler 11 tilt forward by 25° in the vertical direction. Then further adjust the accuracy through the angle gauge. Move the Z slider 9 to make the 700 mm drawing ruler 11 contact the bumper surface. At this time, fix the Z slider 9 through the locking part, and then move the positions of the X slider 7 and the Y slider 8 to make the 700 mm drawing ruler 11 form a geometric locus with the bumper surface, that is, form the lower reference line of the bumper;

[0037] Replace the 700mm marking ruler 11 with a 1000mm marking ruler 11. Make the 1000mm marking ruler 11 perpendicular to the horizontal plane. Through the cooperation of the indicating block 15 and the scale, make the 1000mm marking ruler 11 form an angle of 50° with the normal line of the horizontal plane. Then, further adjust the accuracy through the angle gauge. At this time, move the Z slider 9 so that the distance between the lower end of the 1000mm marking ruler 11 and the ground is 600mm. Then, fix the Z slider 9 through the locking part. Then, by moving the positions of the X slider 7 and the Y slider 8, make the contact points of the 1000mm marking ruler 11 with the leading edge of the engine hood form a geometric locus, that is, form the reference line of the leading edge of the engine hood;

[0038] Finally, replace the marking ruler 11 with a bumper corner marking component. Connect the second connecting rod 14 to the first connecting rod 10. Make the square plate 12 perpendicular to the horizontal plane. Rotate through the hinge point of the connecting block 13 and the square plate 12 so that the square plate 12 forms an angle of 60° with the longitudinal vertical plane of the vehicle. Make it tangent to the bumper surface by moving the X slider 7, the Y slider 8 and the Z slider 9. The contact point of the perpendicular bisector on the square plate 12 with the bumper surface is the bumper corner.

[0039] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics known in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners in the specification can be used to explain the content of the claims.

Claims

1. A line drawing auxiliary tool for a vehicle pedestrian protection experiment, comprising a vehicle plate and four universal wheels, wherein the four universal wheels are respectively arranged at the four corners of the lower end of the vehicle plate, and characterized in that: An adjustment component is provided at the upper end of the vehicle plate, and the adjustment component includes an X slide rail, a bracket, a Y slide rail and a Z slide rail. The X slide rail is provided at the upper end of the vehicle plate, an X slider is provided inside the X slide rail, a Y slider is provided at the top of the X slider, the Y slide rail is slidably connected with the Y slider, the bracket is provided on the outer wall of the Y slide rail, the Z slide rail is provided with an outer wall of the bracket, a Z slider is provided inside the Z slide rail, a line drawing component is provided on the outer wall of the Z slider, and the X slider, the Y slider and the Z slider are all provided with locking pieces.

2. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 1 is characterized by: The marking assembly includes a first connecting rod and a marking ruler. The first connecting rod is arranged on the outer wall of the Z slider, the marking ruler is arranged on the outer wall of the first connecting rod, the end of the marking ruler facing the vehicle is arranged as the marking end, and the end of the marking ruler opposite to the drawing end is provided with an inclinometer.

3. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 2 is characterized by: The first connecting rod can also connect the bar corner marking assembly, which includes a square plate, a connecting block and a second connecting rod. The second connecting rod is arranged on the outer wall of the first connecting rod, the connecting block is arranged at one end of the second connecting rod away from the first connecting rod, and the square plate is arranged at one end of the connecting block away from the second connecting block.

4. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 2 is characterized by: A scale is arranged on the outer wall of the first connecting rod, and an indicating block is arranged on the outer wall of the line drawing ruler.

5. The vehicle pedestrian protection experiment line drawing auxiliary tooling according to claim 4 is characterized by: Limit blocks are symmetrically arranged inside the X slide rail, the Y slide rail and the Z slide rail.

6. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 1 is characterized by: The universal wheel is set as a height-adjustable universal wheel.

7. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 1 is characterized by: Level rulers are provided around the side walls of the vehicle panel.

8. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 1 is characterized by: A mounting block is arranged between the X slider and the Y slider, and the mounting block is arranged as a hollow square tube.

9. The vehicle pedestrian protection test line drawing auxiliary tooling according to claim 7 is characterized by: A push rod is provided on the upper end of the vehicle plate.

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