Device for measuring approach angle and departure angle of vehicle

Abstract

The utility model relates to the technical field of vehicle detection, in particular to a vehicle approach angle and departure angle measuring device which comprises a first frame assembly, a second frame assembly and a telescopic driving mechanism. The fixed end of the telescopic driving mechanism is hinged to the first frame assembly, the movable end of the telescopic driving mechanism is hinged to the second frame assembly, and the first frame assembly can be at least partially arranged in the second frame assembly. The first frame assembly is placed on the ground, the upper surface of the second frame assembly abuts against a protruding point at the front end or the rear end of a vehicle and is tangent to wheels, at the moment, the included angle between the second frame assembly and the horizontal plane is the approach angle or the departure angle of the vehicle, and the device is convenient to use. Meanwhile, due to the fact that the first frame assembly can be at least partially arranged in the second frame assembly, the device can be stored in a small size.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle detection, and more particularly to a device for measuring the approach angle and departure angle of a vehicle. Background Art

[0002] The approach angle is the angle between the ground and the line drawn from the front protrusion of the vehicle to the front wheels. The departure angle is the angle between the ground and the line drawn from the rear protrusion of the vehicle to the rear wheels. These two angles are crucial vehicle parameters and are measured during production to ensure vehicle quality meets requirements.

[0003] In car factories, surveyors use handheld wooden boards to measure approach and departure angles. They place one end of the board under the vehicle body, ensuring it touches the outer edge of the front or rear wheel and rests against the protruding point at the front or rear end of the vehicle. The angle between the board and the ground at this point is the approach or departure angle. Automated devices are also available for this purpose, but these devices are not compact enough and are not convenient to use or store. Utility Model Content

[0004] In order to overcome the problem of inconvenient use and storage of the devices for measuring the approach angle and departure angle of a vehicle in the above-mentioned prior art, the utility model provides a device for measuring the approach angle and departure angle of a vehicle, which can conveniently measure the approach angle and departure angle of a vehicle and is easy to store.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for measuring the approach angle and departure angle of a vehicle, comprising: a first frame assembly, a second frame assembly and a telescopic drive mechanism, the first frame assembly is hinged to the side of the second frame assembly, the fixed end of the telescopic drive mechanism is hinged to the first frame assembly, the movable end of the telescopic drive mechanism is hinged to the second frame assembly, and the first frame assembly can be at least partially placed in the second frame assembly.

[0006] In the technical solution of the present utility model, a telescopic drive mechanism drives the second frame assembly to rotate about the first frame assembly, forming an angle between the first and second frame assemblies. The first frame assembly is placed on the ground, so that the upper surface of the second frame assembly abuts a protruding point at the front or rear end of the vehicle and is tangent to the wheel. At this time, the angle between the second frame assembly and the horizontal plane is the vehicle's approach angle or departure angle, making the device easy to use. Furthermore, because the first frame assembly can be at least partially placed within the second frame assembly, the device can be stored in a smaller size.

[0007] Furthermore, the first frame assembly includes a plurality of first cross bars and first vertical bars, and each of the first cross bars and the first vertical bars are connected to form a first rectangular frame; the second frame assembly includes a plurality of second cross bars and second vertical bars, and each of the second cross bars and the second vertical bars are connected to form a second rectangular frame, and the first rectangular frame can be placed in the second rectangular frame.

[0008] In this solution, the first rectangular frame is formed by the first horizontal bar and the first vertical bar, and the second rectangular frame is formed by the second horizontal bar and the second vertical bar, which can reduce the weight of the device for ease of use. The first rectangular frame can be placed in the second rectangular frame, which can reduce the size after storage.

[0009] Furthermore, the projections of the first horizontal bar and the second horizontal bar on the horizontal plane do not overlap; the projections of the first vertical bar and the second vertical bar on the horizontal plane do not overlap.

[0010] In this solution, since the projections of the first horizontal bar and the second horizontal bar on the horizontal plane do not overlap, and the projections of the first vertical bar and the second vertical bar on the horizontal plane do not overlap, there will be no interference between the first horizontal bar and the second horizontal bar, and there will be no interference between the first vertical bar and the second vertical bar when they are stored, so that the first frame assembly and the second frame assembly can be folded and stored, so that the thickness of the device is small after storage.

[0011] Furthermore, the length of the first crossbar is smaller than the length of the second crossbar; the length of the first vertical bar is smaller than the length of the second vertical bar.

[0012] In this solution, since the length of the first horizontal rod is smaller than that of the second horizontal rod and the length of the first vertical rod is smaller than that of the second vertical rod, the first rectangular frame can be placed inside the second rectangular frame to reduce the thickness of the device after storage.

[0013] Furthermore, the first frame assembly further includes a first reinforcing vertical rod, wherein two first reinforcing vertical rods are provided and both ends of each first reinforcing vertical rod are respectively connected to the first cross rods on both sides.

[0014] In this solution, the structural strength of the first frame assembly can be improved by the first reinforcing vertical rod.

[0015] Furthermore, the second frame assembly also includes a second reinforcing cross bar and a second reinforcing vertical bar. Two second reinforcing vertical bars are provided, and the two ends of each second reinforcing vertical bar are respectively connected to the second cross bars on both sides, and the two ends of the second reinforcing cross bar are respectively connected to the second reinforcing vertical bars on both sides.

[0016] In this solution, the structural strength of the second frame assembly can be improved by the second reinforcing cross bar and the second reinforcing vertical bar.

[0017] Furthermore, the first rectangular frame is provided with a clearance groove, and parts of the second reinforcing cross bar and the second reinforcing vertical bar can be placed in the clearance groove.

[0018] In this solution, by providing the clearance groove, structural interference between the first rectangular frame and the second reinforcing horizontal rod and the second reinforcing vertical rod can be avoided, thereby reducing the storage size of the device.

[0019] Furthermore, the second frame assembly further includes a measuring plate, and the measuring plate is slidably connected to the top surface of the second rectangular frame.

[0020] In this solution, by being slidably connected to the top surface of the second rectangular frame, the length of the top surface of the second frame assembly can be slidably extended to be suitable for different vehicles.

[0021] Furthermore, a sliding groove is provided on the top surface of the second vertical rod, and a sliding block is connected to the bottom of the measuring plate, and the sliding block is slidably connected to the sliding groove.

[0022] In this solution, the sliding block and the sliding groove are cooperated to facilitate the sliding of the measuring plate.

[0023] Furthermore, the telescopic driving mechanism is a pneumatic push rod, the fixed end of the pneumatic push rod is connected to the first frame assembly, and the movable end of the pneumatic push rod is connected to the second frame assembly.

[0024] In this solution, the pneumatic push rod is used to facilitate the rotation of the second frame assembly, which is more convenient to use.

[0025] Furthermore, a level is provided on the top of the second frame assembly along the horizontal direction.

[0026] In this solution, the level meter can be used to visually see whether the device is placed horizontally, thereby reducing measurement errors.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The present invention's device for measuring vehicle approach and departure angles utilizes a telescopic drive mechanism to drive a second frame assembly to rotate about a first frame assembly, thereby forming an angle between the first and second frame assemblies. The first frame assembly is placed on the ground, with the upper surface of the second frame assembly abutting a protruding point at the front or rear end of the vehicle and tangent to the wheel. The angle between the second frame assembly and the horizontal plane represents the vehicle's approach or departure angle. The device is easy to use. Furthermore, because the first frame assembly can be at least partially placed within the second frame assembly, the device can be compacted. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a schematic diagram of the overall structure of the device for measuring the approach angle and departure angle of a vehicle of the present invention;

[0030] Figure 2 yes Figure 1 Schematic diagram of the structure from a side view;

[0031] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0032] Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0033] In the accompanying drawings: 1. First frame assembly; 11. First cross bar; 12. First vertical bar; 13. First reinforcing vertical bar; 2. Second frame assembly; 21. Second cross bar; 22. Second vertical bar; 221. Slide; 23. Second reinforcing cross bar; 24. Second reinforcing vertical bar; 3. Telescopic drive mechanism; 4. Giving groove; 5. Measuring plate; 6. Slider; 61. Limiting protrusion. DETAILED DESCRIPTION

[0034] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0035] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0037] Example 1

[0038] refer to Figure 1 and Figure 2This embodiment discloses a device for measuring the approach angle and departure angle of a vehicle, including a first frame assembly 1, a second frame assembly 2 and a telescopic drive mechanism 3. The first frame assembly 1 is hinged to the side of the second frame assembly 2, the fixed end of the telescopic drive mechanism 3 is hinged to the first frame assembly 1, and the movable end of the telescopic drive mechanism 3 is hinged to the second frame assembly 2. The first frame assembly 1 can be at least partially placed in the second frame assembly 2.

[0039] In this embodiment, the second frame assembly 2 is driven to rotate around the first frame assembly 1 by the telescopic drive mechanism 3. Figure 1 The second frame assembly 2 is rotated about the Y-axis, forming an angle between the first frame assembly 1 and the second frame assembly 2. The first frame assembly 1 is placed on the ground, with the upper surface of the second frame assembly 2 abutting against a protruding point at the front or rear end of the vehicle and tangent to the wheel. The angle between the second frame assembly 2 and the horizontal plane is the vehicle's approach angle or departure angle. The device of this embodiment is very convenient for measuring approach and departure angles.

[0040] The specific usage process is: extend the device into the bottom of the front or rear end of the vehicle, drive the second frame assembly 2 to rise through the telescopic drive mechanism 3, fine-tune the position of the device so that the second frame assembly 2 is tangent to the front wheel and abuts against the protruding point at the front end of the vehicle, or make the second frame assembly 2 tangent to the rear wheel and abut against the protruding point at the rear end of the vehicle. Finally, the measurement personnel use an inclinometer to detect the inclination angle of the second frame to obtain the vehicle's approach angle and departure angle.

[0041] At the same time, since the first frame assembly 1 can be at least partially placed in the second frame assembly 2, the device can be stored in a smaller size, which is convenient for storage and use.

[0042] refer to Figure 1 The first frame assembly 1 includes a plurality of first crossbars 11 and first vertical bars 12, each of which is connected to form a first rectangular frame; the second frame assembly 2 includes a plurality of second crossbars 21 and second vertical bars 22, each of which is connected to form a second rectangular frame, and the first rectangular frame can be placed in the second rectangular frame. In an embodiment, the first rectangular frame is formed by the first crossbars 11 and the first vertical bars 12, and the second rectangular frame is formed by the second crossbars 21 and the second vertical bars 22. The use of rods to connect the frames can reduce the weight of the device, making it easier for surveyors to use. In this embodiment, the first rectangular frame can be placed in the second rectangular frame, thereby reducing the size after storage.

[0043] exist Figure 1In the coordinate system shown, the first horizontal bar 11 and the second horizontal bar 21 extend along the Y direction, the first vertical bar 12 extends along the X direction, the second vertical bar 22 extends along the X direction after storage, and the second vertical bar 22 extends along the XZ direction after opening.

[0044] It is understood that when the second frame assembly 2 comprises only the second rectangular frame, the second crossbar 21 can be brought into direct contact with the vehicle and its tires during measurement to thereby measure the approach and departure angles. In some embodiments, other planar components can be provided on the top surface of the second frame assembly 2 to contact the vehicle.

[0045] refer to Figure 1 Specifically, the projections of the first crossbar 11 and the second crossbar 21 on the horizontal plane do not overlap; the projections of the first vertical bar 12 and the second vertical bar 22 on the horizontal plane do not overlap. The horizontal plane is the XY plane shown in the figure. In this embodiment, since the projections of the first crossbar 11 and the second crossbar 21 on the horizontal plane do not overlap, and the projections of the first vertical bar 12 and the second vertical bar 22 on the horizontal plane do not overlap, when the first crossbar 11 and the second crossbar 21 do not interfere with each other, and the first vertical bar 12 and the second vertical bar 22 do not interfere with each other, so that the first frame assembly 1 and the second frame assembly 2 can be folded and stored, and the thickness of the device after storage is reduced.

[0046] refer to Figure 1 , the length of the first crossbar 11 is smaller than the length of the second crossbar 21; the length of the first vertical bar 12 is smaller than the length of the second vertical bar 22. In this solution, since the length of the first crossbar 11 is smaller than the length of the second crossbar 21, and the length of the first vertical bar 12 is smaller than the length of the second vertical bar 22, the first rectangular frame can be placed inside the second rectangular frame to reduce the thickness of the device after it is stored. This is equivalent to the first rectangular frame being a rectangle with a smaller size than the second rectangular frame, so the first rectangular frame can be rotated and stored inside the second rectangular frame. Of course, in some other embodiments, the size of the second rectangular frame can also be smaller than the size of the first rectangular frame, and the second rectangular frame can be stored in the first rectangular frame to reduce the size of the device after it is stored.

[0047] refer to Figure 1 The first frame assembly 1 further includes a first reinforcing vertical rod 13, which is provided with two first reinforcing vertical rods 13 and each of which has two ends connected to the first cross bars 11 on both sides. In this embodiment, the first reinforcing vertical rod 13 can improve the structural strength of the first frame assembly 1. Figure 1 In the coordinate system shown, the first reinforcing vertical rod 13 extends along the X direction.

[0048] In this embodiment, the second frame assembly 2 further includes a second reinforcing cross bar 23 and a second reinforcing vertical bar 24. Two second reinforcing vertical bars 24 are provided, and the two ends of each second reinforcing vertical bar 24 are respectively connected to the second cross bars 21 on both sides, and the two ends of the second reinforcing cross bar 23 are respectively connected to the second reinforcing vertical bars 24 on both sides. The second reinforcing cross bar 23 and the second reinforcing vertical bar 24 can improve the structural strength of the second frame assembly 2. Figure 1 In the coordinate system shown, the second reinforcing horizontal rod 23 extends along the Y direction, the second reinforcing vertical rod 24 extends along the X direction after being stored, and the second reinforcing vertical rod 24 extends along the XZ direction after being opened.

[0049] refer to Figure 1 and Figure 4 The first rectangular frame is provided with a clearance groove 4 , in which parts of the second reinforcing cross bar 23 and the second reinforcing vertical bar 24 can be placed.

[0050] Specifically, the clearance slot 4 is located where the second reinforcing crossbar 23 and the second reinforcing vertical bar 24 intersect with the first rectangular frame. For example, if the second reinforcing vertical bar 24 and the first crossbar 11 overlap in horizontal projection after being stowed, a clearance slot 4 can be provided at a location corresponding to the first crossbar 11 to prevent structural interference between the second reinforcing vertical bar 24 and the first crossbar 11 after stowing. If the second reinforcing crossbar 23 and the first reinforcing vertical bar 13 also overlap in horizontal projection after being stowed, a clearance slot 4 can be provided on the first reinforcing vertical bar 13 to similarly prevent structural interference and reduce the size of the stowed device.

[0051] In this embodiment, the intersecting portion of the first reinforcing crossbar and the second reinforcing vertical bar 24 is placed in the clearance groove 4, thereby reducing the size of the device after storage. The provision of the clearance groove 4 can avoid structural interference between the first rectangular frame and the second reinforcing crossbar 23 and the second reinforcing vertical bar 24.

[0052] In some other embodiments, the clearance groove 4 may also be provided in the second frame assembly 2 , also for avoiding structural interference with the first frame assembly 1 after storage.

[0053] Example 2

[0054] refer to Figures 1 to 3 This embodiment is similar to Example 1, except that the second frame assembly 2 further includes a measuring plate 5, which is slidably connected to the top surface of the second rectangular frame. This sliding connection to the top surface of the second rectangular frame allows the top surface of the second frame assembly 2 to be extended to accommodate different vehicles. The measuring plate 5 can be roughly U-shaped, with the open side facing the vehicle. This is equivalent to creating a notch in the middle of the rectangular plate, reducing the overall weight of the device and facilitating its use.

[0055] refer to Figure 3 The top surface of the second vertical rod 22 is provided with a slide groove 221. A slider 6 is connected to the bottom of the measuring plate 5, and the slider 6 is slidably connected to the slide groove 221. The top surfaces of the second vertical rods 22 on both sides are provided with a slide groove 221, and the sliders 6 are provided on both sides of the measuring plate 5. The sliders 6 and the slide grooves 221 cooperate to facilitate the sliding of the measuring plate 5.

[0056] The end of the chute 221 is provided with an opening, allowing the slider 6 to be inserted into the chute 221 from the end thereof, facilitating the assembly and removal of the measuring plate 5. The slider 6 has a generally stepped cross-section, with the wider end connected to the measuring plate 5 and the narrower end facing the chute 221. Limiting protrusions 61 extend laterally from either side of the narrower end of the slider 6. The chute 221 matches the shape of the narrower end of the slider 6, and the limiting protrusions 61 prevent the slider 6 from falling out of the chute 221.

[0057] Example 3

[0058] refer to Figure 1 and Figure 2 This embodiment is similar to the first embodiment, except that, in this embodiment, the telescopic drive mechanism 3 is a pneumatic push rod, the fixed end of which is connected to the first frame assembly 1, and the movable end of which is connected to the second frame assembly 2. The pneumatic push rod facilitates the rotation of the second frame assembly 2, making it more convenient to use.

[0059] In this embodiment, a level (not shown) is installed horizontally on the top of the second frame assembly 2. This level allows for intuitive verification of the levelness of the device, thereby reducing measurement errors. In some embodiments, an inclinometer can be installed on the side of the second frame assembly 2, parallel to the upper surface of the second frame assembly 2. Surveyors can directly read the inclinometer reading to obtain the vehicle's approach and departure angles.

[0060] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A device for measuring vehicle approach angle and departure angle, characterized in that: The invention comprises a first frame assembly (1), a second frame assembly (2) and a telescopic drive mechanism (3); the first frame assembly (1) is hinged to the side of the second frame assembly (2); the fixed end of the telescopic drive mechanism (3) is hinged to the first frame assembly (1); the movable end of the telescopic drive mechanism (3) is hinged to the second frame assembly (2); and the first frame assembly (1) can be at least partially placed in the second frame assembly (2).

2. The device for measuring vehicle approach angle and departure angle according to claim 1, characterized in that: The first frame assembly (1) comprises a plurality of first transverse bars (11) and first vertical bars (12), and each of the first transverse bars (11) and the first vertical bars (12) are connected to form a first rectangular frame; the second frame assembly (2) comprises a plurality of second transverse bars (21) and second vertical bars (22), and each of the second transverse bars (21) and the second vertical bars (22) are connected to form a second rectangular frame, and the first rectangular frame can be placed in the second rectangular frame.

3. The device for measuring vehicle approach angle and departure angle according to claim 2, characterized in that: The projections of the first crossbar (11) and the second crossbar (21) on the horizontal plane do not overlap; the projections of the first vertical bar (12) and the second vertical bar (22) on the horizontal plane do not overlap.

4. The device for measuring vehicle approach angle and departure angle according to claim 3, characterized in that: The length of the first crossbar (11) is smaller than the length of the second crossbar (21); the length of the first vertical bar (12) is smaller than the length of the second vertical bar (22).

5. The device for measuring vehicle approach angle and departure angle according to claim 2, characterized in that: The first frame assembly (1) further comprises a first reinforcing vertical rod (13), wherein two first reinforcing vertical rods (13) are provided and both ends of each first reinforcing vertical rod (13) are respectively connected to the first cross rods (11) on both sides.

6. The device for measuring vehicle approach angle and departure angle according to claim 5, characterized in that: The second frame assembly (2) further comprises a second reinforcing cross bar (23) and a second reinforcing vertical bar (24), wherein two second reinforcing vertical bars (24) are provided and both ends of each second reinforcing vertical bar (24) are respectively connected to the second cross bars (21) on both sides, and both ends of the second reinforcing cross bar (23) are respectively connected to the second reinforcing vertical bars (24) on both sides.

7. The device for measuring vehicle approach angle and departure angle according to claim 6, characterized in that: The first rectangular frame is provided with a clearance groove (4), and parts of the second reinforcing cross bar (23) and the second reinforcing vertical bar (24) can be placed in the clearance groove (4).

8. The device for measuring vehicle approach angle and departure angle according to claim 2, characterized in that: The second frame assembly (2) further comprises a measuring plate (5), wherein the measuring plate (5) is slidably connected to the top surface of the second rectangular frame.

9. The device for measuring vehicle approach angle and departure angle according to claim 8, characterized in that: A sliding groove (221) is provided on the top surface of the second vertical rod (22), and a sliding block (6) is connected below the measuring plate (5), and the sliding block (6) is slidably connected to the sliding groove (221).

10. The device for measuring vehicle approach angle and departure angle according to claim 1, characterized in that: The telescopic drive mechanism (3) is a pneumatic push rod, the fixed end of the pneumatic push rod is connected to the first frame assembly (1), and the movable end of the pneumatic push rod is connected to the second frame assembly (2).

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