A body single-side falling simulation tool

Abstract

The utility model provides a kind of vehicle body single side falling simulation tool, it includes basic framework, guide rail, sliding component and lifting assembly;Basic framework includes two support frame bodies spaced apart and the connecting frame body being arranged between two support frame bodies, the both ends of connecting frame body are respectively fixedly connected with the upper end of two support frame bodies, connecting frame body includes two cross beams mutually parallel and spaced apart, the both ends of guide rail are each fixedly connected with a cross beam, guide rail has sliding support plate, sliding component includes oppositely arranged pulley on upside and oppositely arranged connecting piece on downside, pulley and the upper side of sliding support plate are movably cooperated, lifting assembly includes hook and the driving mechanism connected with hook, driving mechanism is fixedly connected with connecting piece.The utility model is provided with sliding component, the position of lifting assembly can be automatically adjusted, so that the force direction of lifting assembly to be measured vehicle during lifting process is always adjusted to vertical upward, and the variable in impact process is easy to control.

Description

Technical Field

[0001] This utility model relates to the field of vehicle testing equipment technology, and specifically to a single-sided vehicle body drop simulation fixture. Background Technology

[0002] In recent years, regulations and testing standards related to automotive passive safety have been continuously improved, and new cars need to meet more stringent evaluation requirements in terms of safety performance. For example, with the improvement of vehicle passive safety testing standards, the demand for testing airbag control strategies for non-collision conditions is also increasing.

[0003] One type of non-collision scenario involves a vehicle lifting and then falling from one side. This type of fall carries the risk of accidental airbag deployment. If the airbag deployment parameters are not configured correctly, it could cause occupant injury and property damage. Therefore, simulation tests are needed to collect relevant data for optimizing the airbag system. However, traditional testing methods lack a unified standard for single-sided vehicle falls. The simulation methods used by different manufacturers and laboratories vary significantly, leading to a lack of comparability in test results. For example, commonly used simple simulation methods include tilting a wooden plank to allow one side of the vehicle to slide down, or using a forklift to lift one side of the vehicle and then suddenly lower it. These methods are difficult to control precisely during lifting and release, resulting in impure impact conditions, poor repeatability, and insufficient test accuracy. They are therefore flawed when applied to airbag system optimization. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a vehicle body single-sided fall simulation fixture. This fixture enables precise control of single-sided vehicle body falls with good repeatability. The impact data collected by this fixture can be applied to the optimization of airbag systems or other related systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vehicle body single-sided fall simulation fixture includes a basic frame, a guide rail connected to the basic frame, a sliding assembly connected to the guide rail, and a lifting assembly connected to the sliding assembly. The basic frame includes two spaced-apart support frames and a connecting frame disposed between the two support frames. The two ends of the connecting frame are fixedly connected to the upper ends of the two support frames, respectively. The connecting frame includes two parallel and spaced-apart crossbeams. The two ends of the guide rail are each fixedly connected to one of the crossbeams. The guide rail has a sliding support plate. The sliding assembly includes a pulley disposed on the upper side and a connector disposed on the lower side. The pulley is movably engaged with the upper side of the sliding support plate. The lifting assembly includes a hook and a drive mechanism connected to the hook. The drive mechanism is fixedly connected to the connector.

[0006] In use, this invention involves fixing the basic frame and positioning the vehicle under test near the bottom of the guide rail. A lifting sling is passed through the two wheels on the same side of the vehicle and connected to a hook. The hook is then lifted by a drive mechanism, raising one side of the vehicle. Releasing the hook by the drive mechanism causes the vehicle to fall to one side, thus achieving the corresponding test. The key feature of this invention is that the sliding component can drive the lifting component to move along the guide rail. When the hook rises, if the sliding component is not directly above the side of the vehicle that is being lifted, the lifting direction of the hook is not perpendicular to the ground. The sliding component will be subjected to a diagonal pull, which will drive the sliding component to move, causing the lifting direction of the hook to automatically adjust to vertically upward. Therefore, the lifting height of the hook precisely corresponds to the lifting height of one side of the vehicle. Variables during the impact process are easily controlled, the test has good repeatability, and the obtained test data can be well applied to the optimization of airbag systems or other related systems.

[0007] Furthermore, the guide rail also includes a vertical reinforcing plate vertically connected to the middle of the sliding support plate and a horizontal reinforcing plate vertically connected to the upper end of the vertical reinforcing plate.

[0008] Furthermore, the guide rail also includes a reinforcing truss connected to the upper side of the transverse reinforcing plate.

[0009] Furthermore, the upper side of the sliding support plate forms two sliding support surfaces located on both sides of the vertical reinforcing plate. The sliding assembly includes two parallel mounting plates. At least one pulley is connected to the side of each of the two mounting plates that is close to each other. Each sliding support surface cooperates with at least one pulley.

[0010] Furthermore, the support frame includes two parallel and spaced columns and a connecting column that vertically connects the two columns, with the columns and the connecting column forming a detachable connection.

[0011] Furthermore, the connecting frame also includes a reinforcing beam that vertically connects the two crossbeams, and the reinforcing beam forms a detachable connection with the crossbeams; each end of the crossbeam forms a detachable connection with one of the columns, and the extension direction of the guide rail is perpendicular to the crossbeam.

[0012] Furthermore, a reinforcing diagonal brace connects the column and the beam.

[0013] Furthermore, the bottom of the column is provided with casters, and the side of the column is connected to a positioning post extending obliquely downward, with an adjustable positioning component connected to the lower end of the positioning post.

[0014] Furthermore, the positioning assembly includes a base, an adjusting screw connected to the upper side of the base, and two nuts threadedly engaged with the adjusting screw. A positioning plate is provided at the lower end of the positioning post, and the positioning plate is provided with a positioning hole through which the adjusting screw can pass. The two nuts are respectively provided on the upper and lower sides of the positioning plate.

[0015] Furthermore, the drive mechanism has a remote control module.

[0016] The following beneficial effects can be achieved by applying this utility model: 1. The sliding component of this utility model can automatically adjust the position of the lifting component, so that the force direction applied to the vehicle under test is always adjusted to vertically upward during the lifting process of the lifting component. The lifting height of the hook corresponds precisely to the lifting height of one side of the vehicle. The variables during the impact process are easy to control, the repeatability of the test is good, and the obtained test data can be well applied to the optimization of airbag system or other related systems.

[0017] 2. The support frame and connecting frame structure of this utility model can adapt to meet the testing needs of vehicles with different spans, and the movable lifting components can be matched with different vehicle models, making this utility model more versatile.

[0018] 3. In some embodiments of this utility model, a caster wheel is provided at the bottom of the column, and a positioning column and a positioning component are connected to the side of the column. The caster wheel enables the quick movement and arrangement of this utility model, and the positioning column and positioning component enable the quick positioning of this utility model. It is more flexible to use and has higher testing efficiency. Attached Figure Description

[0019] Figure 1 This is a front view of one embodiment of the present invention; Figure 2 for Figure 1 Side view of the embodiment shown; Figure 3 for Figure 1 Top view of the embodiment shown; Figure 4 for Figure 1 Schematic diagram of the structure of the guide rail and sliding assembly; Figure 5 for Figure 2 A schematic diagram of the positioning component; In the diagram, 1-support frame, 11-column, 12-connecting column, 13-caster wheel, 14-positioning column, 141-positioning plate, 15-positioning component, 151-base, 152-adjusting bolt, 153-nut, 16-reinforcing diagonal brace, 2-connecting frame, 21-crossbeam, 22-reinforcing beam, 3-guide rail, 31-sliding support plate, 32-vertical reinforcing plate, 33-horizontal reinforcing plate, 34-reinforcing truss, 4-sliding component, 41-mounting plate, 42-pulley, 43-connector, 5-drive mechanism, 6-hook. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0021] Reference Figures 1-5 One embodiment of this utility model provides a vehicle body single-sided fall simulation fixture, which includes a basic frame, guide rails, sliding components, and lifting components, specifically: The basic frame consists of two spaced-apart support frames 1 and a connecting frame 2 located between the two support frames 1. The two ends of the connecting frame 2 are detachably fixed to the upper ends of the two support frames 1 by screws or bolts. In use, the two support frames 1 are set on opposite sides of the vehicle, so that the connecting frame 2 spans across the top of the vehicle. The support frame 1 includes two parallel and spaced-apart columns 11 and two connecting columns 12 perpendicularly connecting the two columns 11. There are two connecting columns 12, one of which is fixedly connected to the middle of a column, and the other is fixedly connected to the upper end of a column. The connecting column 11 and the column 12 are detachably fixed together by screws or bolts. The bottom of each column 11 is equipped with casters 13, which allow for quick movement and arrangement of the foundation frame. A positioning column 14 extending diagonally downwards is connected to the side of each column 11. The bottom of the positioning column is equipped with a positioning component 15, which is used to position the foundation frame on the foundation. In this embodiment, the bottom of the positioning column 14 is equipped with a positioning plate 141 for positioning... A positioning hole is provided in the middle of the plate 141. The positioning assembly includes a base 151, an adjusting screw 152 connected to the upper side of the base, and two nuts 153 that cooperate with the adjusting screw. The adjusting screw 152 passes through the positioning hole on the positioning plate 141. The two nuts 153 are respectively set on the upper and lower sides of the positioning plate. The distance between the positioning plate and the base can be adjusted by rotating the nuts 153. In the first working state, the distance between the positioning plate and the base is small, and the base is in an elevated state. At this time, the casters are in contact with the ground and support the basic frame, so that the basic frame can move. In the second working state, the distance between the positioning plate and the base is large. At this time, the base is in contact with the ground and supports the basic frame. The casters are in an elevated state, so that the basic frame is fixed on the ground. The connecting frame 2 includes two parallel and spaced-apart crossbeams 21. Several reinforcing beams 22 are vertically connected between the two crossbeams 2. The ends of the crossbeams 21 are fixedly connected to the upper ends of the columns 11 by bolts or screws. The direction of the crossbeams is perpendicular to the columns 11 and the connecting column 12. Reinforcing diagonal braces 16 are provided at the inner corners of the crossbeams 21 and the columns 11. The area enclosed by the reinforcing diagonal braces 16, the crossbeams 21 and the columns 11 forms a triangular structure.

[0022] The guide rail 3 includes a sliding support plate 31 at the bottom, a vertical reinforcing plate 32 perpendicularly connected to the middle of the sliding support plate 31, a horizontal reinforcing plate 33 perpendicularly connected to the upper end of the vertical reinforcing plate 32, and a reinforcing truss 34 fixedly connected to the upper side of the horizontal reinforcing plate 33. The upper side of the sliding support plate 31 forms two sliding support surfaces located on both sides of the vertical reinforcing plate 32. The reinforcing truss 34 includes a horizontal steel beam parallel to the horizontal reinforcing plate 33 and several herringbone web members disposed between the horizontal steel beam and the horizontal reinforcing plate. Both ends of the guide rail 3 are perpendicularly connected to the middle of two crossbeams 21, respectively. The sliding assembly 4 includes a sliding engagement part on the upper side and a connector 43 on the lower side. The sliding engagement part includes two parallel mounting plates 41. Each of the two mounting plates 41 has a pulley 42 connected to its adjacent side. Each mounting plate has two pulleys 42. The two mounting plates 41 are located on both sides of the sliding support plate 31 in the width direction. The pulleys 42 are movably engaged with the sliding support surface of the sliding support plate 31.

[0023] The lifting assembly includes a drive mechanism 5 connected to the connector 43 and a hook 6 connected to the drive mechanism 5. The drive mechanism can control the hook 6 to move up and down. Taking existing devices on the market as an example, the lifting assembly can be made of an electric hoist. The electric hoist has a drum and a pull rope. The pull rope is connected to the hook 6. When the drum rotates, the hook moves up and down. The electric hoist has a remote control module. The working status of the electric hoist can be controlled through the remote control module to raise or lower the hook, or release the hook to cause the vehicle under test connected to the hook to fall.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle body single-sided fall simulation fixture, characterized in that: The system includes a basic frame, a guide rail (3) connected to the basic frame, a sliding assembly (4) connected to the guide rail, and a lifting assembly connected to the sliding assembly. The basic frame includes two support frames (1) spaced apart and a connecting frame (2) between the two support frames (1). The two ends of the connecting frame (2) are fixedly connected to the upper ends of the two support frames (1), and the connecting frame (2) includes two parallel beams (21) spaced apart. The two ends of the guide rail (3) are fixedly connected to one of the beams (21). The guide rail (3) has a sliding support plate (31). The sliding assembly (4) includes a pulley (42) disposed on the upper side and a connector (43) disposed on the lower side. The pulley (42) is movably engaged with the upper side of the sliding support plate (31). The lifting assembly includes a hook (6) and a drive mechanism (5) connected to the hook. The drive mechanism (5) is fixedly connected to the connector (43).

2. The vehicle body single-sided fall simulation fixture according to claim 1, characterized in that: The guide rail (3) also includes a vertical reinforcing plate (32) that is vertically connected to the middle of the sliding support plate (31) and a horizontal reinforcing plate (33) that is vertically connected to the upper end of the vertical reinforcing plate (32).

3. The vehicle body single-sided fall simulation fixture according to claim 2, characterized in that: The guide rail (3) also includes a reinforcing truss (34) connected to the upper side of the transverse reinforcing plate (33).

4. The vehicle body single-sided fall simulation fixture according to claim 2, characterized in that: The upper side of the sliding support plate (31) forms two sliding support surfaces located on both sides of the vertical reinforcing plate (32). The sliding assembly includes two parallel mounting plates (41). At least one pulley (42) is connected to the side of each of the two mounting plates (41) that are close to each other. Each sliding support surface cooperates with at least one pulley (42).

5. The vehicle body single-sided fall simulation fixture according to claim 1, characterized in that: The support frame (1) includes two parallel and spaced columns (11) and a connecting column (12) that vertically connects the two columns.

6. The vehicle body single-sided fall simulation fixture according to claim 5, characterized in that: The connecting frame (2) also includes a reinforcing beam (22) that vertically connects the two beams (21); each end of the beam (21) is fixedly connected to a column (11), and the extension direction of the guide rail (3) is perpendicular to the beam (21).

7. The vehicle body single-sided fall simulation fixture according to claim 6, characterized in that: A reinforcing diagonal brace (16) connects the column (11) and the beam (21).

8. The vehicle body single-sided fall simulation fixture according to claim 5, characterized in that: The bottom of the column (11) is provided with a caster wheel (13), and the side of the column is connected to a positioning column (14) extending obliquely downward. The lower end of the positioning column is connected to a positioning component (15).

9. The vehicle body single-sided fall simulation fixture according to claim 8, characterized in that: The positioning component (15) includes a base (151), an adjusting screw (152) connected to the upper side of the base, and two nuts (153) that are threadedly engaged with the adjusting screw. A positioning plate (141) is provided at the lower end of the positioning column. The positioning plate is provided with a positioning hole through which the adjusting screw can pass. The two nuts (153) are respectively provided on the upper and lower sides of the positioning plate (141).

10. The vehicle body single-sided fall simulation fixture according to claim 1, characterized in that: The drive mechanism (5) has a remote control module.

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