Truck tail end target object for safety test

Abstract

The utility model relates to the technical field of intelligent automobile road test, and provides a truck tail end target object for safety test, which comprises a static support, an air bag support arranged on the static support and a shell covering the static support, and the shell is provided with a collision surface; the locking wheel is rotationally arranged at one end of the static support and located on the outer side of the shell, and the locking wheel is provided with a locking groove. The locking block is arranged on the static support in a relatively sliding mode, and the locking block is used for being matched with the locking groove in a clamped mode after sliding. By means of the technical scheme, the problem that in the prior art, moving convenience and stability are not compatible is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent vehicle road testing. Specifically, it relates to a target object at the rear end of a truck for safety testing. Background Art

[0002] The target object at the rear end of a truck for safety testing is a device specifically designed to simulate the real rear end of a truck to test the anti-rear-end collision safety performance of vehicles. In automotive crash safety testing, especially in the evaluation of vehicle automatic emergency braking systems (AEB) and other anti-collision technologies, such target objects play a crucial role.

[0003] Patent document number CN219104360U discloses a target device for AEB rear-end collision testing of heavy trucks, including a static support and a target vehicle airbag body arranged on the static support. The target vehicle airbag body includes a front inflatable airbag; a first rear inflatable airbag is arranged on the upper part of the rear end face of the front inflatable airbag, and a second rear inflatable airbag and an impact-resistant sponge are arranged on the lower part of the rear end face of the front inflatable airbag; the front inflatable airbag and the first rear inflatable airbag are connected by a common inflatable air column; the front inflatable airbag and the second rear inflatable airbag are connected by a reinforced inflatable air column; the lower end face of the first rear inflatable airbag is detachably connected to the upper end face of the impact-resistant sponge, and the rear end face of the second rear inflatable airbag is detachably connected to the front end face of the impact-resistant sponge; the static support includes a static tray arranged at the lower end on the side where the front inflatable airbag is located, and rollers are arranged at the bottom of the static tray.

[0004] The target device for AEB rear-end collision testing of heavy trucks disclosed in patent document number CN219104360U can solve the problem of single type of target objects in the prior art during AEB testing and realize the real simulation of heavy box trucks through the settings of the front inflatable airbag, the first rear inflatable airbag, the second rear inflatable airbag and the impact-resistant sponge. However, there are still the following problems: when a vehicle collides with the target object at the rear end, the target object at the rear end receives the impact force from the vehicle and will tip over. If it is fixed to the ground, it is not convenient to move. Summary of the Utility Model

[0005] The utility model provides a target object at the rear end of a truck for safety testing, which solves the problem of incompatibility between mobility and stability in the related art.

[0006] The technical solution of the utility model is as follows:

[0007] A target object at the rear end of a truck for safety testing includes: a static support, an airbag support arranged on the static support, and a housing covering the static support and the airbag support. The housing has a collision surface; it also includes:

[0008] The locking wheel is rotatably arranged at one end of the static bracket, outside the housing, and the locking wheel has a locking groove;

[0009] The locking block is relatively slidably arranged on the static bracket. After the locking block slides, it is used for snap-fitting with the locking groove.

[0010] Optionally, the locking block has a hinged portion; further comprising:

[0011] The first hinge rod is hingedly connected to the hinged portion;

[0012] The second hinge rod is hingedly connected to the first hinge rod;

[0013] The swing plate is swingably arranged on the static bracket and is hingedly connected to the second hinge rod. The swing plate is located inside the static bracket.

[0014] Optionally, there are two locking wheels, and the two locking wheels are symmetrically arranged; there are two locking blocks, the first hinge rods and the second hinge rods.

[0015] Optionally, further comprising:

[0016] The sliding rod is slidably arranged inside the static bracket. The sliding rod passes through the housing and extends to the outside of the housing. The swing plate is arranged at one end of the sliding rod, and the sliding rod is used to drive the swing plate to swing;

[0017] The moving plate is slidably arranged at one end of the collision surface. The moving plate is arranged at the end of the sliding rod far from the swing plate, and the moving plate is used to drive the sliding rod to slide.

[0018] Optionally, further comprising:

[0019] The elastic member is sleeved on the sliding rod and is located between the moving plate and the sliding rod. The two ends of the elastic member respectively act on the moving plate and the housing, and the elastic member is used to provide a force for the moving plate to move away from the housing.

[0020] Optionally, further comprising:

[0021] There are two rollers, and the two rollers are respectively rotatably arranged at both ends of the static bracket and are located outside the housing.

[0022] Optionally, further comprising:

[0023] The first sponge pad is arranged at the end of the moving plate far from the elastic member;

[0024] The second sponge pad is arranged between the housing and the static bracket;

[0025] The third sponge pad is arranged between the housing and the static bracket and is symmetrically arranged with the second sponge pad.

[0026] The working principle and beneficial effects of the present utility model are as follows:

[0027] In the present utility model, the locking wheel is rotatably arranged at one end of the static bracket and is located outside the housing, which is convenient for the operator to reach and operate. It is usually connected to the static bracket through a bearing or other rotating mechanism, enabling the locking wheel to rotate freely relative to the static bracket. The locking wheel is provided with a locking groove, and the shape, size, and position of this groove should match those of the locking block to facilitate the smooth snap-fit between the two. The locking block is relatively slidably arranged on the static bracket, usually realized through mechanisms such as slide rails, chutes, and guide rods. The sliding direction should be parallel or nearly parallel to the rotation axis of the locking wheel to facilitate the accurate docking of the locking block and the locking groove. After the locking block slides to an appropriate position, it can be snap-fitted with the locking groove, thereby restricting the rotation of the locking wheel and fixing the target object in the test position. Conversely, when unlocking, only need to slide the locking block away from the locking groove to release the locking of the locking wheel, enabling the target object to be movable.

[0028] The operator pushes or pulls the locking block to slide it along the static bracket to a position aligned with the locking groove on the locking wheel, and then by rotating the locking block or pressing the locking mechanism (such as a spring-loaded locking tongue) on the locking block, the locking block is snap-fitted with the locking groove, thereby locking the locking wheel and restricting the movement of the target object. When the position of the target object needs to be adjusted, the operator performs the opposite operation to release the snap-fit between the locking block and the locking groove, and then slides the locking block away from the locking wheel. The snap-fit between the locking wheel and the locking block can provide a strong locking force to ensure that the target object remains stable during the test and will not change its position due to accidental collision or vibration, improving the accuracy of the test results. The locking and unlocking of the target object can be achieved through simple sliding and rotating operations without the need for additional tools, and the operation process is fast and labor-saving. It is applicable to scenarios where the position or posture of the target object needs to be frequently adjusted, or where the target object needs to be kept absolutely fixed during the test. Description of the Drawings

[0029] The following will further illustrate the above characteristics, technical features, advantages, and their implementation manners of the present utility model in a clear and understandable manner in combination with the drawings in the preferred embodiments.

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model (the housing is not shown);

[0031] Figure 2 It is another three-dimensional structural schematic diagram of the present utility model;

[0032] Figure 3This is a schematic internal structure diagram of the installation location of the housing and the moving plate in the present utility model;

[0033] Figure 4 This is a three-dimensional structure diagram of the locking wheel, locking block, and swing plate during assembly in the present utility model;

[0034] Figure 5 This is a sectional structure diagram of the locking wheel, locking block, and swing plate during assembly in the present utility model;

[0035] Figure 6 This is a sectional structure diagram of the present utility model.

[0036] In the figure, 1 is a static support, 2 is an airbag support, 3 is a housing, 301 is a collision surface, 6 is a locking wheel, 601 is a locking groove, 7 is a locking block, 701 is a hinge portion, 8 is a first hinge rod, 9 is a second hinge rod, 10 is a swing plate, 11 is a sliding rod, 12 is a moving plate, 13 is an elastic member, 14 is a roller, 15 is a first sponge pad, 16 is a second sponge pad, 17 is a third sponge pad, and 18 is a connecting rod. Detailed implementation manners

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will describe the specific implementation manners of the present utility model with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other implementation manners can also be obtained.

[0038] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. Additionally, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0039] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] In addition, in the description of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0041] As Figures 1 to 6 shown, this embodiment provides a truck tail-end target for safety testing, including: a static bracket 1, an airbag bracket 2 disposed on the static bracket 1, and a housing 3 covering the outside of the static bracket 1. The housing 3 has a collision surface 301; it also includes a locking wheel 6 rotatably disposed at one end of the static bracket 1, outside the housing 3, and the locking wheel 6 has a locking groove 601; a locking block 7 is slidably disposed relative to the static bracket 1, and after the locking block 7 slides, it is used for snap-fit connection with the locking groove 601.

[0042] In this embodiment, the locking wheel 6 is rotatably disposed at one end of the static bracket 1, outside the housing 3, which is convenient for operators to reach and operate. It is usually connected to the static bracket 1 through a bearing or other rotating mechanism, so that the locking wheel 6 can rotate freely relative to the static bracket 1. The locking wheel 6 is provided with a locking groove 601, and the shape, size, and position of this groove should match the locking block 7 to facilitate the smooth snap-fit connection between the two. The locking block 7 is slidably disposed relative to the static bracket 1, usually realized through mechanisms such as slide rails, chutes, and guide rods. The sliding direction should be parallel or nearly parallel to the rotation axis of the locking wheel 6 to facilitate the accurate docking of the locking block 7 with the locking groove 601. After the locking block 7 slides to an appropriate position, it can be snap-fitted with the locking groove 601, thereby restricting the rotation of the locking wheel 6 and fixing this target on the test position. On the contrary, when unlocking, only need to slide the locking block 7 away from the locking groove 601 to release the locking of the locking wheel 6 and make this target movable.

[0043] The operator pushes or pulls the locking block 7 to slide it along the static bracket 1 to a position aligned with the locking groove 601 on the locking wheel 6, and then by rotating the locking block 7 or pressing the locking mechanism (such as a spring-loaded locking tongue) on the locking block 7, the locking block 7 is snap-fitted with the locking groove 601, thereby locking the locking wheel 6 and restricting the movement of this target. When the position of this target needs to be adjusted, the operator performs the opposite operation to release the snap-fit connection between the locking block 7 and the locking groove 601, and then slides the locking block 7 away from the locking wheel 6. The snap-fit connection between the locking wheel 6 and the locking block 7 can provide a strong locking force to ensure that this target remains stable during the test and will not change its position due to accidental collision or vibration, improving the accuracy of the test results. The locking and unlocking of this target can be achieved through simple sliding and rotating operations without using additional tools, and the operation process is fast and labor-saving. It is suitable for scenarios where the position or attitude of this target needs to be adjusted frequently, or where this target needs to be kept absolutely fixed during the test.

[0044] Optionally, the locking block 7 has a hinge portion 701; further included are: a first hinge rod 8 hingedly connected to the hinge portion 701; a second hinge rod 9 hingedly connected to the first hinge rod 8; and a swing plate 10 swingably arranged on the static bracket 1 and hingedly connected to the second hinge rod 9, and the swing plate 10 is located inside the static bracket 1.

[0045] In this embodiment, the locking block 7 and its operating mechanism are further refined. By adding the first hinge rod 8, the second hinge rod 9, and the swing plate 10, an operator can conveniently operate the locking block 7 located inside the static bracket 1 outside the housing 3. The locking block 7 is provided with a hinge portion 701, and the hinge portion 701 is usually a rotating shaft or a hinge seat fixed at one end on the locking block 7 for hingedly connecting to the first hinge rod 8. The swing plate 10 is swingably arranged on the static bracket 1 and is located inside the housing 3. The swing plate 10 is usually hingedly connected to the static bracket 1 through a rotating shaft, a hinge seat, or other swing mechanisms, enabling the swing plate 10 to freely swing relative to the static bracket 1.

[0046] The operator can swing the swing plate to drive the second hinge rod 9 to swing, causing the second hinge rod 9 to pull the first hinge rod 8, so that the locking block 7 slides out of the locking groove 601. At this time, the locking wheel 6 loses its limit and can rotate. The second hinge rod 9 serves as a transmission link between the locking block 7 and the first hinge rod 8. The swing of the swing plate 10 indirectly drives the sliding of the locking block 7 to achieve the locking and unlocking of the locking wheel 6. There are two working forms. One is that the operator can swing the swing plate 10 clockwise to make the second hinge rod 9 swing to the left. At this time, the second hinge rod 9 forms a certain angle with the rotation axis of the locking wheel 6. When the second hinge rod 9 swings, it will pull the first hinge rod 8, causing the locking block 7 to slide out of the locking groove 601, canceling the limit of the locking block 7 on the locking wheel 6. At this time, the target object can move horizontally on the ground. The other is that the operator can first align the locking groove 601 and the locking block 7, and then swing the swing plate 10 counterclockwise to make the second hinge rod 9 swing to the right until it is parallel to the rotation axis of the locking wheel 6, causing the second hinge rod 9 to push the first hinge rod 8, making the locking block 7 slide into the locking groove 601, restricting the rotation of the locking wheel 6. At this time, the target object cannot move horizontally on the ground. By adding the first hinge rod 8, the second hinge rod 9, and the swing plate 10, a more convenient and safe locking and unlocking operation method is provided for the target object, improving the operation efficiency and safety, with strong adaptability and being applicable to a variety of test scenarios.

[0047] Optionally, there are two locking wheels 6, and the two locking wheels 6 are symmetrically arranged; there are two locking blocks 7, two first hinge rods 8, and two second hinge rods 9.

[0048] In this embodiment, two locking wheels 6 are symmetrically arranged at both ends of the static bracket 1. The structures, dimensions, positions of the locking grooves 601, etc. of the two locking wheels 6 should be exactly the same to ensure the symmetry and consistency of the locking effect. A connecting rod 18 can be arranged inside the static bracket 1. The swing plate 10 is swingably arranged on the connecting rod 18 and is located between the two locking wheels 6. Two locking blocks 7, two first hinge rods 8 and two second hinge rods 9 are symmetrically arranged at both ends of the static bracket 1 respectively and cooperate with the corresponding locking wheels 6. The structures, dimensions, hinge positions, etc. of the two locking blocks 7, two first hinge rods 8 and two second hinge rods 9 should be exactly the same to ensure the cooperation effect with the locking wheels 6. The two locking wheels 6 are simultaneously engaged with the corresponding locking blocks 7 to achieve double-point locking of the target object, improving the locking stability and safety. Even if one of the locking wheels 6 fails or is unlocked improperly, the other locking wheel 6 can still provide effective locking, reducing the accidental movement of the target object, improving the accuracy of the collision test, providing a more stable locking effect and higher safety for the target object, with strong adaptability and being applicable to a variety of harsh test scenarios.

[0049] Optionally, it further includes a slide rod 11 slidably arranged inside the static bracket 1. The slide rod 11 passes through the housing 3 and extends to the outside of the housing 3. The swing plate 10 is arranged at one end of the slide rod 11. The slide rod 11 is used to drive the swing plate 10 to swing; a moving plate 12 is slidably arranged at one end of the collision surface 301. The moving plate 12 is arranged at the end of the slide rod 11 away from the swing plate 10. The moving plate 12 is used to drive the slide rod 11 to slide.

[0050] In this embodiment, when the impact force of the collision reaches a certain amount, the compressed airbag pushes the collision vehicle, and then the collision vehicle pushes the moving plate 12. The moving plate 12 serves as a force transmission medium, converting the thrust generated by the collision into the sliding power of the slide rod 11.

[0051] The slide rod 11 is slidably arranged inside the static bracket 1. When the moving plate 12 is pushed, the slide rod 11 slides stably under the guidance of the static bracket 1. The function of the slide rod 11 is to transmit the linear motion of the moving plate 12 to the swing plate 10 to achieve power transmission between different components.

[0052] After the slide rod 11 slides, it pushes the swing plate 10 to swing. The swinging action of the swing plate 10 triggers subsequent mechanical structure changes, that is, the engagement state between the locking block 7 and the locking wheel 6 is released. Normally, the locking block 7 and the locking wheel 6 are in an engaged state to keep the device stable. After a rear-end collision occurs, the swing of the swing plate 10 causes the locking block 7 and the locking wheel 6 to be disengaged, and the device can move. In this way, the device can slide in the collision direction to release part of the impact force and avoid the device from tipping over due to excessive impact force.

[0053] Optionally, it further includes an elastic member 13 sleeved on the sliding rod 11, located between the moving plate 12 and the sliding rod 11. Both ends of the elastic member 13 act on the moving plate 12 and the housing 3 respectively, and the elastic member 13 is used to provide a force for the moving plate 12 to move away from the housing 3.

[0054] In this embodiment, it is sleeved on the sliding rod 11 and located between the moving plate 12 and the sliding rod 11. The elastic member 13 can be an element with elastic restoring force such as a spring or elastic rubber.

[0055] Its function is to provide a force for the moving plate 12 to move away from the housing 3. In the normal state, the elastic member 13 is in a certain compressed or stretched state, storing elastic potential energy. When an external impact force acts on the moving plate 12, the elastic member 13 will further deform and absorb part of the energy. When the impact force disappears, the elastic restoring force of the elastic member 13 will push the moving plate 12 back to the initial position, providing power for the reset of the moving plate 12.

[0056] Optionally, it further includes two rollers 14. The two rollers 14 are respectively rotatably arranged at both ends of the static bracket 1 and are located outside the housing 3.

[0057] In this embodiment, the two rollers 14 and the locking wheel 6 can play a stable supporting role.

[0058] Optionally, it further includes a first sponge pad 15 arranged at one end of the moving plate 12 away from the elastic member 13; a second sponge pad 16 arranged between the housing 3 and the static bracket 1; a third sponge pad 17 arranged between the housing 3 and the static bracket 1 and symmetrically arranged with the second sponge pad 16.

[0059] In this embodiment, the first sponge pad 15 is arranged at one end of the moving plate 12 away from the elastic member 13. It is usually made of a soft and elastic sponge material. Its function is to play a buffering role during a collision, reducing the impact force generated by the direct collision between the moving plate 12 and other components. When the moving plate 12 is pushed by a collided vehicle, the first sponge pad 15 can absorb part of the energy, reduce the moving speed of the moving plate 12, and thus reduce the impact on the entire device.

[0060] The second sponge pad 16 and the third sponge pad 17 can play a buffering role between the housing 3 and the static bracket 1, reducing the impact on the static bracket 1 caused by the collision.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A truck tail end target for safety testing, comprising: A static support (1), an airbag support (2) arranged on the static support (1), and a shell (3) arranged outside the static support (1) and the airbag support (2), wherein the shell (3) has a collision surface (301); characterized in that it also includes: A locking wheel (6) is rotatably arranged at one end of the static support (1) and is located outside the housing (3); the locking wheel (6) has a locking groove (601); A locking block (7) is relatively slidably arranged on the static support (1); after the locking block (7) slides, it is used to engage with the locking groove (601).

2. A truck tail end target for safety testing according to claim 1, characterized in that: The locking block (7) has a hinge portion (701); and further comprises: A first hinge rod (8) is hingedly connected to the hinge portion (701); A second hinged rod (9) hingedly connected to the first hinged rod (8); A swing plate (10) is swingably arranged on the static support (1) and is hingedly connected to the second hinged rod (9). The swing plate (10) is located inside the static support (1).

3. A truck tail end target for safety testing according to claim 2, characterized in that: There are two locking wheels (6), which are symmetrically arranged; there are two locking blocks (7), two first hinged rods (8) and two second hinged rods (9).

4. A truck tail end target for safety testing according to claim 3, characterized in that: Also includes: A slide bar (11) is slidably arranged in the static bracket (1), the slide bar (11) passes through the housing (3) and extends to the outside of the housing (3), the swing plate (10) is arranged at one end of the slide bar (11), and the slide bar (11) is used to drive the swing plate (10) to swing; A movable plate (12) is slidably arranged at one end of the collision surface (301); the movable plate (12) is arranged at an end of the slide bar (11) away from the swing plate (10); and the movable plate (12) is used to drive the slide bar (11) to slide.

5. A truck tail end target for safety testing according to claim 4, characterized in that: Also includes: An elastic member (13) is sleeved on the slide bar (11) and is located between the movable plate (12) and the slide bar (11). Two ends of the elastic member (13) act on the movable plate (12) and the shell (3) respectively. The elastic member (13) is used to provide a force for moving the movable plate (12) away from the shell (3).

6. A truck tail end target for safety testing according to claim 3, characterized in that: Also includes: There are two rollers (14), and the two rollers (14) are rotatably arranged at two ends of the static support (1) respectively and are located outside the shell (3).

7. A truck tail end target for safety testing according to claim 5, characterized in that: Also includes: A first sponge pad (15) is arranged at an end of the movable plate (12) away from the elastic member (13); A second sponge pad (16) is arranged between the housing (3) and the static support (1); The third sponge pad (17) is arranged between the shell (3) and the static support (1), and is symmetrically arranged with the second sponge pad (16).

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