Camera removes mark target
Technical Field
The invention relates to a camera moving target, and belongs to the field of automobile test parts.
Background
With the development of society, active safety performance technologies of automobiles have been greatly advanced, such as AEB (Autonomous Emergency Brake, automatic emergency braking system) and ADAS (Advanced Driver Assistance Systems, advanced assisted driving system) applications in the automotive field. The active safety performance of the existing automobile needs to be verified and optimized by performing a large number of collision tests and collision prevention tests. The traditional test method is to print a photograph of the tail of the vehicle on a paperboard and move the photograph in a manner of hanging a swing arm of a tractor. Although the method is simple to install, the method cannot meet the prior test requirements, wind resistance is too large under the condition of high vehicle speed, and the target of the camera shakes very severely, so that the requirement of stable identification of the camera cannot be met. At present, the balloon car is commonly used to realize removing the target body, prints vehicle afterbody photo at the balloon car, and the removal scheme has following two kinds:
one is to lay rails on the ground to facilitate movement of the balloon. Although the scheme can meet the test requirement, the guide rail is too high in cost, too long in laying time and too large in labor consumption, and is usually tested once, the test environment is prepared for a few hours, and meanwhile, the finishing time after the test is finished is also huge.
The other is to realize moving through the balloon car and tractor are connected to the gas column, and it generally uses three fifty meters long gas columns, similar fire hose, aerifys to certain atmospheric pressure in the gas column, can satisfy the rigidity demand of slowing down in the test process, when the target receives the collision, the gas column can bend, guarantees the safety of test. However, the scheme is set up conveniently and rapidly compared with the prior scheme, but the air charging time is not short, the air columns are extremely easy to damage in the test process, and the whole experiment cannot be continued normally as long as one air column leaks.
Disclosure of Invention
The invention aims to provide a camera moving target which is simple in structure, convenient to assemble and disassemble, strong in universality, firm and durable, and capable of meeting the requirements of automatic emergency braking and self-adaptive cruise testing.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a camera removes mark target, includes tractor, buffer car, balloon car and two at least coupling assembling, coupling assembling includes rigid connection structure, and at least one coupling assembling still includes buffer structure, buffer structure with rigid connection structure connects, the buffer car passes through coupling assembling connects tractor and balloon car.
Further, the rigid connection structure and the connection surface are triangular, the rigid connection structure comprises at least two first connection pipes, one ends of the two first connection pipes are connected with each other in an angle, and the other ends of the two first connection pipes are arranged on the connection surface.
Further, a plurality of reinforcing ribs are further arranged between the two first connecting pipes, and two ends of each reinforcing rib are respectively connected with the connecting surface and the first connecting pipe, and/or the reinforcing ribs are connected with the two first connecting pipes.
Further, the first connecting pipe is provided with a connecting plate, the connecting plate is provided with a mounting hole, and the mounting and fixing of the first connecting pipe are realized by inserting a mounting pin into the mounting hole.
Further, the buffer structure comprises a buffer block and an elastic piece, wherein the two first connecting pipes are connected to two sides of the buffer block respectively in an angle, a pipe hole is formed in the buffer block, a second connecting pipe is inserted into the pipe hole, the elastic piece is fixed on the second connecting pipe, and the elastic piece is arranged in the buffer block.
Further, the elastic piece is a buffer spring, and the elastic coefficient of the buffer spring is 5-15N/cm.
Further, one end of the second connecting pipe is inserted into the pipe hole, a trailer buckle is arranged at the other end of the second connecting pipe, and a trailer hook matched with the trailer buckle is arranged at the tail of the tractor; or the other end of the second connecting pipe is provided with a trailer hook, and the tail of the tractor is provided with a trailer buckle matched with the trailer hook.
Further, the tail of the buffer car is provided with a buckle, one end of the second connecting pipe is inserted into the pipe hole, the other end of the second connecting pipe is inserted into the buckle, and the second connecting pipe is connected with the buckle through threads and bolts.
Further, a first steel bracket and a first wheel set arranged on the first steel bracket are arranged at the bottom of the balloon vehicle.
Further, a second steel bracket and a second wheel group arranged on the second steel bracket are arranged at the bottom of the buffer car.
Compared with the prior art, the invention has the beneficial effects that: according to the camera moving target, the connecting assembly with the buffer structure and the rigid connecting structure is adopted to connect the tractor and the balloon, so that rigid connection can be ensured, a good buffer area can be ensured if collision occurs, and the tractor and the test vehicle are protected. Therefore, the camera mobile target is simple in structure, convenient to assemble and disassemble, strong in universality, firm and durable, and can meet all automatic emergency braking and self-adaptive cruise test items at home and abroad.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 and fig. 2 are schematic structural diagrams of a camera moving target according to an embodiment of the present invention;
fig. 3 to 5 are schematic structural views of a connection assembly in a camera moving target according to an embodiment of the present invention;
fig. 6 is a schematic diagram of the bottom of a balloon in a camera moving target according to an embodiment of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 6, a camera moving target 1 according to an embodiment of the present invention includes a tractor, a buffer truck 2, a balloon truck 3, and at least two connection assemblies 4, wherein the connection assemblies 4 include a rigid connection structure 41, and at least one of the connection assemblies 4 further includes a buffer structure 42, the buffer structure 42 is connected to the rigid connection structure 41, and the buffer truck 2 connects the tractor and the balloon truck 3 through the connection assemblies 4.
In the present embodiment, two connection assemblies 4 are used to connect the tractor and the balloon vehicle 3 with the buffer vehicle 2, respectively, and the two connection assemblies 4 are provided with a rigid connection structure 41 and a buffer structure 42. Preferably, the rigid connection structure 41 and the connection surface are triangular, so that the connection is firm. The rigid connection structure 41 includes at least two first connection pipes 411, wherein one ends of the two first connection pipes 411 are connected to each other at an angle, and the other ends are disposed on the connection surface. A reinforcing rib 412 may be further disposed between the two first connecting pipes 411, two ends of the reinforcing rib 412 are respectively connected with the connecting surface and the first connecting pipes 411, and meanwhile, other reinforcing ribs 412 may be further connected with the two first connecting pipes 411.
In this embodiment, the first connecting pipe 411 has a connecting plate 413, a mounting hole (not shown) is formed in the connecting plate 413, and a mounting pin 414 is inserted into the mounting hole to fix the first connecting pipe 411.
In this embodiment, the buffer structure 42 includes a buffer block 421 and an elastic member 422, the two first connecting pipes 411 are connected to two sides of the buffer block 421 at an angle, a pipe hole (not shown) is formed in the buffer block 421, a second connecting pipe 43 is inserted into the pipe hole, the elastic member 422 is fixed on the second connecting pipe 43, and the elastic member 422 is disposed in the buffer block 421.
In this embodiment, the elastic member 422 is a buffer spring, and preferably, the elastic coefficient of the buffer spring 422 is 5-15N/cm.
By adopting the connecting structure, the rigid connection between the structures of the camera moving target can be ensured, and a good buffer area can be ensured if collision occurs. Not only protecting the tractor, but also protecting the test car. The buffer truck 2 and the movable false truck support are connected through the large spring connecting structure, and two springs are used as the tie between the tractor and the movable false truck, so that rigid connection can be ensured, and a good buffer area can be ensured if collision occurs. Not only protecting the tractor, but also protecting the test car. The buffer car also adopts a steel structure and the wheels of the battery car, so that the strength and the high-speed mobility are ensured. The front and rear parts of the buffer car all use triangular steel bracket structures, so that the stability of the running car is ensured.
In the present invention, one end of the second connecting pipe 43 is inserted into the pipe hole, the other end is provided with the trailer buckle 5, the tail of the tractor is provided with the trailer hook 11 matched with the trailer buckle 5, and in other embodiments, the structures of the trailer hook 11 and the trailer buckle 5 can be interchanged. Preferably, an anti-collision steel beam 12 is arranged at the tail of the tractor, and the trailer buckle 5/trailer hook 11 is arranged on the anti-collision steel beam 12. The mode of connecting the trailer hook 11 and the trailer buckle 5 is adopted, so that the modification is very simple and convenient, the modification technology is mature and reliable, special modification is not needed, and the method is convenient and has very high cost.
In this embodiment, the first connecting tube 411, the reinforcing ribs 412 and the second connecting tube 43 are made of stainless steel, and in other embodiments, the materials thereof may be selected according to practical situations.
In the present invention, the tail of the buffer truck 2 is provided with a buckle 21, one end of the second connecting pipe 43 is inserted into the pipe hole, the other end is inserted into the buckle 21, the second connecting pipe 43 and the buckle 21 are connected through threads and bolts, and indeed, in other embodiments, the second connecting pipe 43 and the buckle 21 can be connected through a bolt. The connection mode of the buckle 21 and the threaded bolt is adopted, so that the connection is firm and the disassembly and assembly are very convenient.
In the present embodiment, the bottom of the balloon 3 is provided with a first steel bracket 31, and a first wheel set 32 is provided on the first steel bracket 31. The bottom of the buffer car 2 is provided with a second steel bracket 22, and a second wheel set 23 is provided on the second steel bracket 22. The design ensures the high-speed movement of the buffer car 3 and the balloon car 4 and ensures the stability of the buffer car and the balloon car in the test process. The structure ensures the stability of high-speed movement of the moving target, and the speed can reach 60kph in a test field without bumping basically.
In the invention, the buffer car 2 is provided with a containing cavity 24, and articles such as test equipment and the like can be placed in the containing cavity 24 in the test process.
To sum up: according to the camera moving target, the connecting assembly with the buffer structure and the rigid connecting structure is adopted to connect the tractor and the balloon, so that rigid connection can be ensured, a good buffer area can be ensured if collision occurs, and the tractor and the test vehicle are protected. Therefore, the camera mobile target is simple in structure, convenient to assemble and disassemble, strong in universality, firm and durable, and can meet all automatic emergency braking and self-adaptive cruise test items at home and abroad.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.