Front hatch cover testing device

Abstract

A front hatch cover testing device comprises a rack, a supporting assembly, a first positioning piece and a second positioning piece. The supporting assembly is slidably connected to the rack in the first direction. The first positioning piece is adjustably connected to the supporting assembly in the second direction and used for positioning the end, in the first direction, of the front hatch cover of the vehicle. The second positioning piece is adjustably connected to the rack in the second direction, and the second positioning piece and the first positioning piece are distributed at intervals in the first direction and used for positioning the other end, in the first direction, of the front hatch cover. According to the front hatch cover testing device, independent testing of the front hatch cover can be achieved, decoupling of the front hatch cover and the whole vehicle in the testing process is achieved, various testing devices do not need to be arranged in the whole vehicle, testing operation is simplified, the testing time period is shortened, and meanwhile cost is saved. Besides, by arranging the position-adjustable supporting assembly and the first positioning piece, positioning of different types of front hatch covers can be achieved, and testing universality of the different types of front hatch covers is achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a front hood testing device. Background Art

[0002] In the vehicle field, pedestrian protection is an important part of passive safety. Therefore, collision testing is required in vehicle R&D and design. For example, for the front hood of a vehicle, it is necessary to test the collision effect between the pedestrian's head and the front hood. However, the existing collision tests between the pedestrian's head and the front hood are all conducted in the whole vehicle environment, and the experimental cost is high and the time period is long. Utility Model Content

[0003] In view of this, the present application provides a front hood testing device to achieve decoupling of the testing of the vehicle front hood from the entire vehicle.

[0004] The present application provides a hood testing device, which includes: a bench, a support assembly, a first positioning member, and a second positioning member. The support assembly is slidably connected to the bench along a first direction. The first positioning member is adjustably connected to the support assembly along a second direction, and is used to position one end of the hood of a vehicle along the first direction. The second positioning member is adjustably connected to the bench along the second direction, and the second positioning member and the first positioning member are spaced apart along the first direction, and are used to position the other end of the hood along the first direction.

[0005] The front hatch test device provided by the present application can realize independent testing of the front hatch, realize the decoupling of the front hatch from the whole vehicle during the test, and eliminate the need to arrange various test devices in the whole vehicle, simplify the test operation, shorten the test time cycle, and save costs. In addition, by providing a support assembly with adjustable position and a first positioning member, different types of front hatches can be positioned, realizing the universality of different types of front hatch tests.

[0006] In a possible design, the front hood test device further includes a sliding assembly, and the support assembly is connected to the bench in a slidable manner through the sliding assembly. The sliding assembly may include a plurality of parts, and the plurality of parts may be connected to the support assembly and the bench in an assembled manner, so that a good sliding effect can be achieved between the support assembly and the bench.

[0007] In a possible design, the sliding assembly includes a slide rail and a slider, the slide rail is connected to the stand, the slider is connected to the support assembly, and the slider is slidably connected to the slide rail. The slide rail can be fastened to the crossbeam of the stand by screws, and the length direction of the slide rail is consistent with the first direction. In order to ensure the stability of the sliding adjustment of the support assembly and the reliability of the support for the front hatch, two slide rails can be provided, and the two slide rails are respectively fixed on the crossbeams on opposite sides of the stand and are arranged in parallel. Correspondingly, the slider can also be fastened to the support assembly by screws, and a slider is respectively connected to both ends of the support assembly, and each slider is slidably matched with a corresponding slide rail, so that the stable sliding of the support assembly can be achieved through the cooperation between the slider and the slide rail.

[0008] In a possible design, the support assembly is provided with a plurality of first fixing holes, the first positioning member is provided with a second fixing hole, and the first positioning member is connected to the support assembly through the cooperation of the connecting member, the second fixing holes and at least part of the first fixing holes. The plurality of first fixing holes are distributed at intervals in the second direction, and the first positioning member can select part of the first fixing holes for installation and fixing, so that the installation position can be adjusted in the second direction.

[0009] In a possible design, the support assembly includes a support plate, a reinforcement plate and a connecting plate, wherein the connecting plate is connected to the end of the support plate, the support plate is slidably connected to the stand through the connecting plate, and the support plate is provided with the first fixing hole; the reinforcement plate is connected to the bottom of the support plate. The connecting plate and the support plate can be designed and processed independently, so that it is convenient to match the support plate and the connecting plate with better performance, such as mechanical performance, support strength, etc., to ensure the reliability of the support assembly supporting the front hood. The reinforcement plate is connected to the bottom of the support plate, which can improve the structural strength of the support plate and ensure the reliability of the support for the front hood.

[0010] In a possible design, a first mounting hole is provided on the side wall of the reinforcing plate. The first mounting hole on the side wall can be used to connect a pop-up assembly. The pop-up assembly is used to control the front hood to pop up, so as to simulate the pop-up state when the front hood collides with a pedestrian's head.

[0011] In a possible design, the front hatch test device further includes a locking assembly, and the support assembly is locked on the bench by the locking assembly. The locking assembly can lock or release the support assembly to ensure reliable fixation of the support assembly on the bench, or to achieve movement and adjustment of the support assembly on the bench.

[0012] In a possible design, the locking assembly includes a knob, a locking piece and a guide rod, and the guide rod is connected to the stand; the locking piece includes a first locking portion, a second locking portion and a connecting portion, and the connecting portion is connected to the supporting assembly; one end of the first locking portion is connected to one end of the connecting portion, and the second locking portion is connected to an end of the connecting portion away from the first locking portion, and there is a gap between the first locking portion and the second locking portion, so that the cross-sectional shape of the locking piece is U-shaped; a first recessed portion is provided on the inner wall of the first locking portion, and a second recessed portion is provided on the inner wall of the second locking portion, and the first locking portion and the second locking portion are respectively sleeved on the guide rod through the corresponding first recessed portion and the second recessed portion; a first through hole is provided on the first locking portion, and a threaded hole is provided on the second locking portion, and the knob is provided with a screw rod, and the screw rod is inserted into the first through hole, and the screw rod is threadedly connected to the threaded hole.

[0013] Wherein, when the locking member is in a non-locking state, the locking member can slide relative to the guide rod, and the guide rod can provide a guide to ensure the stability of the sliding of the support assembly. When the locking member is in a locked state, the inner surfaces of the first recessed portion and the second recessed portion can be pressed on the outer surface of the guide rod, and the first recessed portion and the second recessed portion can have a large contact area with the guide rod, ensuring that the locking member and the guide rod are reliably locked and fixed. In addition, when the screw rod is tightened in the threaded hole by operating the knob, the first locking portion and the second locking portion can be slightly elastically deformed and approach each other by the tightening force, and the gap between the first locking portion and the second locking portion is reduced. The first locking portion and the second locking portion are respectively pressed on the guide rod through the corresponding first recessed portion and the second recessed portion, so as to achieve the locking of the relative position of the locking member and the guide rod. Since the locking member is connected to the support assembly through the connecting portion, the position of the support assembly can be locked when the relative position of the locking member and the guide rod is locked, so as to ensure that the support assembly stably supports the front hood at the locked position. When the screw is loosened in the threaded hole by operating the knob, the first locking portion and the second locking portion recover their deformation in the direction away from each other, so that the first recessed portion and the second recessed portion are no longer squeezed with the guide rod. For example, there is a slight gap between the first recessed portion and the second recessed portion and the guide rod, so that the locking member can slide relative to the guide rod, thereby realizing the movement and adjustment of the support assembly relative to the stand.

[0014] In a possible design, the first positioning member includes a positioning seat, a positioning block, a connecting bolt and a nut, the positioning seat is connected to the supporting assembly; the positioning block is connected to the positioning seat, the positioning block includes a first limiting arm and a second limiting arm, and a notch is provided between the first limiting arm and the second limiting arm; the first limiting arm and the second limiting arm are both provided with a second through hole, and the connecting bolt passes through the second through holes on the first limiting arm and the second limiting arm in turn and is locked and fixed with the nut. Among them, the front end of the front hatch can have a lock buckle, and when the front hatch is installed on the test device, the notch on the positioning block can be avoided for the lock buckle on the front hatch, so that the lock buckle can be snapped onto the connecting nut, thereby realizing the rapid installation and positioning of the front hatch, and the operation is simple.

[0015] In a possible design, two support assemblies are provided, and the two support assemblies are spaced apart and distributed in the first direction;

[0016] The first positioning member is adjustably connected to one of the support assemblies along the second direction, and the second positioning member is adjustably connected to another of the support assemblies along the second direction. The first positioning member and the second positioning member can both be adjusted along the second direction on the corresponding support assemblies to meet the positioning requirements of different types of front hatch covers, thereby achieving universality in testing different types of front hatch covers.

[0017] In a possible design, a third fixing hole is provided on the second positioning member, and the second positioning member is connected to the support assembly through the cooperation of the connecting member, the third fixing hole and at least part of the first fixing hole, thereby facilitating the disassembly and assembly of the second positioning member.

[0018] In a possible design, the hood test device further includes a support platform, the support platform is located below the support assembly and is spaced apart from the support assembly; the support platform is adjustably connected to the test stand along the height direction of the test stand. The support platform may be a metal plate, such as a steel plate, and the support platform has good structural strength and can provide reliable support. The support platform is used to place vehicle hood components such as a range extender to simulate the vehicle's hood environment, so as to make the collision test results of the hood more accurate.

[0019] In a possible design, the test bench includes a longitudinal beam, and the longitudinal beam is provided with a plurality of second mounting holes along the height direction; the front hatch test device also includes a connecting frame, and the connecting frame is provided with a third mounting hole, and the connecting frame is connected to the longitudinal beam through the cooperation of a connecting member, the third mounting hole and at least part of the second mounting holes; the connecting frame is also provided with a support portion, and the support portion is bent in a direction away from the longitudinal beam, and the support platform is supported on the support portion. The connecting frame can facilitate the connection between the support platform and the test bench. During the installation process, the connecting frame can be adjusted to a suitable height on the longitudinal beam first, and then the support platform can be placed on the support portion of the connecting frame, which is simple and convenient to operate.

[0020] In a possible design, a roller assembly is provided at the bottom of the stand to facilitate movement of the testing device.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of a front hatch testing device provided by an embodiment of the present application;

[0024] Figure 2 A state diagram of a front hatch cover testing device provided by an embodiment of the present application when testing the front hatch cover;

[0025] Figure 3 for Figure 1 The enlarged view at A in FIG.

[0026] Figure 4 for Figure 1 The enlarged view at B in the figure;

[0027] Figure 5 A schematic structural diagram of a front hatch cover testing device provided in another embodiment of the present application;

[0028] Figure 6 for Figure 5 The enlarged view at C in the figure;

[0029] Figure 7 A schematic structural diagram of a front hatch cover testing device provided in yet another embodiment of the present application;

[0030] Figure 8 for Figure 1 The enlarged view at D in the figure;

[0031] Fig. 9 A schematic diagram of the structure of a locking member provided in an embodiment of the present application;

[0032] Fig.10 A schematic structural diagram of a front hatch cover testing device provided in yet another embodiment of the present application;

[0033] Fig.11 A schematic structural diagram of a front hatch testing device provided in yet another embodiment of the present application;

[0034] Fig.12 A schematic diagram of the structure of the connecting frame provided in the embodiment of the present application;

[0035] Fig.13 A schematic structural diagram of a front hatch testing device provided in yet another embodiment of the present application.

[0036] Reference numerals:

[0037] 1-stand;

[0038] 11- beam;

[0039] 12-longitudinal beam;

[0040] 121- second mounting hole;

[0041] 13- roller assembly;

[0042] 2-Support assembly;

[0043] 21- support plate;

[0044] 211-first fixing hole;

[0045] 22- reinforcement plate;

[0046] 221-first mounting hole;

[0047] 23-connecting plate;

[0048] 3- first positioning member;

[0049] 31- positioning seat;

[0050] 311-Second fixing hole

[0051] 32- positioning block;

[0052] 321-first limiting arm;

[0053] 322-second limiting arm;

[0054] 323-Gap;

[0055] 33-connecting bolt;

[0056] 34-nut;

[0057] 4- second positioning member;

[0058] 41- third fixing hole;

[0059] 5- Sliding assembly;

[0060] 51-slide rail;

[0061] 52-slider;

[0062] 6- support;

[0063] 7-locking assembly;

[0064] 71-knob;

[0065] 72-locking member;

[0066] 721-first locking portion;

[0067] 7211-first recessed portion;

[0068] 7212-first through hole;

[0069] 722- second locking portion;

[0070] 7221- second recessed portion;

[0071] 7222-threaded hole;

[0072] 723-connection part;

[0073] 724-gap;

[0074] 73-guide rod;

[0075] 8- Pop-up assembly;

[0076] 9-Support platform;

[0077] 10-connecting frame;

[0078] 101- third mounting hole;

[0079] 102- supporting part;

[0080] 100 - front hatch;

[0081] 100a-front end;

[0082] 100b - backend;

[0083] X-first direction;

[0084] Y second direction;

[0085] Z-height direction. DETAILED DESCRIPTION

[0086] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0087] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0088] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0089] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0090] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] In the field of vehicles, pedestrian protection performance is a very important part of passive safety performance. Pedestrian protection refers to the protection of vehicles from traffic accidents with pedestrians outside and people driving wheelchairs, bicycles, electric vehicles, motorcycles and other means of transportation. It is related to the safety protection of vulnerable groups on the road. Therefore, pedestrian collision protection tests are required in vehicle research and development and design. For example, for the front hood of the vehicle, it is necessary to test the collision effect between the pedestrian's head and the front hood. In the test, a hemisphere with a diameter of 165mm and a mass of 3.5kg to 4.5kg is generally used to imitate the pedestrian's head shape, and the model is controlled to hit different positions of the front hood at different impact speeds. After the test, it is evaluated based on the data collected by the acceleration sensor in the head model. However, the existing collision tests of this type are all carried out in the whole vehicle environment, the test cost is high, and the test time cycle is long.

[0092] Figure 1 A schematic diagram of the structure of a front hatch cover testing device provided in an embodiment of the present application, referring to Figure 1 An embodiment of the present application provides a hood test device (hereinafter referred to as the test device), which can be used for collision testing of a vehicle hood. Of course, the test device can also be applied to other scenarios outside the vehicle field. For example, the test device can also be applied to scenarios with collision protection requirements in the fields of smart home, artificial intelligence, smart security, etc. Figure 2 FIG. 1 is a state diagram of a front hatch cover testing device provided in an embodiment of the present application when testing the front hatch cover 100, referring to FIG. Figure 2 This embodiment is described by taking the test device for testing the front bonnet 100 as an example. The test device can independently test the front bonnet 100 without applying the front bonnet 100 to the whole vehicle for testing, and can achieve decoupling of the test of the front bonnet 100 from the whole vehicle.

[0093] Specifically, refer to Figure 1 , the test device includes a test bench 1, a support assembly 2, a first positioning member 3 and a second positioning member 4. The test bench 1 may include a plurality of cross beams 11 and a plurality of longitudinal beams 12, and the plurality of cross beams 11 and longitudinal beams 12 may be interconnected to form a three-dimensional frame structure. For ease of explanation, the present embodiment may define the test bench 1 as having a height direction Z, a first direction X, and a second direction Y, wherein the height direction Z, the first direction X, and the second direction Y are perpendicular to each other, and some cross beams 11 of the test bench 1 may extend along the first direction X, some cross beams 11 may extend along the second direction Y, and the longitudinal beams 12 may extend along the height direction Z. The test bench 1 may provide reliable support for the front cabin cover 100 and various components mounted on the test bench 1. In one embodiment, referring to Figure 1 A roller assembly 13 may be provided at the bottom of the stand 1 to facilitate movement of the testing device.

[0094] Reference Figure 1 The support assembly 2 can be slidably connected to the stand 1 along the first direction X, and the first positioning member 3 can be adjustably connected to the support assembly 2 along the second direction Y. The front end 100a of the front hood 100 of the vehicle usually has a lock, and the front hood 100 can be engaged with the front end 100a of the vehicle body through the lock. The first positioning member 3 can be adjusted to a position similar to the state of the whole vehicle by moving along the second direction Y on the support assembly 2 to engage and position the front end 100a of the front hood 100 (the front end 100a refers to the end of the front hood 100 facing the front of the vehicle, refer to Figure 2 ), so as to simulate the engagement state of the front bonnet 100 in the whole vehicle. By moving the first positioning member 3 on the support assembly 2, the engagement state of different front bonnets 100 in the whole vehicle can be simulated.

[0095] Reference Figure 1 , the second positioning member 4 can be adjustably connected to the stand 1 along the second direction Y, and the "connection" can be a direct connection or an indirect connection. When the second positioning member 4 is directly connected to the stand 1, the second positioning member 4 can be fixed to the stand 1 by a connecting member such as a screw, so that the second positioning member 4 can be in direct contact with the stand 1. When the second positioning member 4 is indirectly connected to the stand 1, the second positioning member 4 can be connected to the stand 1 through other structural components, and the second positioning member 4 is not in direct contact with the stand 1. For example, refer to Figure 1 Two support components 2 can be provided, one support component 2 can be used to install the first positioning member 3, and the other support component 2 can be used to install the second positioning member 4, that is, the second positioning member 4 can be indirectly connected to the stand 1 through one support component 2.

[0096] Among them, refer to Figure 1 The second positioning member 4 and the first positioning member 3 are spaced apart along the first direction X, and are used to position the other end of the front hood 100 along the first direction X. That is, the second positioning member 4 can be used to position the rear end 100b of the front hood 100 (the rear end 100b refers to the end of the front hood 100 facing the rear of the vehicle, see Figure 2 ), the matching position of the second positioning member 4 and the front hood 100 is consistent with the positioning position of the front hood 100 on the whole vehicle, so that the positioning state of the rear end 100b of the front hood 100 on the whole vehicle can be simulated by the second positioning member 4. Among them, the position of the second positioning member 4 on the test bench 1 can be adjusted in the second direction Y, so that it can be suitable for the positioning requirements of different types of front hoods 100. Therefore, the positioning state of the front hood 100 on the whole vehicle can be simulated by the first positioning member 3 and the second positioning member 4, so as to ensure the consistency of the test results of the front hood 100 using the test device and the test results of the front hood 100 on the whole vehicle.

[0097] In addition, as described above, the support assembly 2 can slide relative to the stand 1 along the first direction X, so that the distance between the first positioning member 3 and the second positioning member 4 in the first direction X can be adjusted, thereby meeting the positioning requirements of different types of front hatches 100 and achieving universality in testing different front hatches 100.

[0098] The front hatch cover test device provided in the embodiment of the present application can realize independent testing of the front hatch cover 100, realize the decoupling of the front hatch cover 100 from the whole vehicle during the test, and do not need to arrange various test devices in the whole vehicle, simplify the test operation, shorten the test time cycle, and save costs. In addition, by providing the position-adjustable support assembly 2 and the first positioning member 3, different types of front hatch covers 100 can be positioned, and the universality of testing different types of front hatch covers 100 is realized.

[0099] As a possible implementation, refer to Figure 1 The support assembly 2 and the stand 1 can be slidably connected by a sliding assembly 5. The sliding assembly 5 can include multiple parts. The multiple parts can be connected to the support assembly 2 and the stand 1 in an assembled manner, so that a good sliding effect can be achieved between the support assembly 2 and the stand 1. In one embodiment, referring to Figure 1 The sliding assembly 5 may include a slide rail 51 and a slider 52. The slide rail 51 is connected to the platform 1, and the slider 52 is connected to the support assembly 2. The slider 52 can be slidably connected to the slide rail 51. The slide rail 51 can be fastened to the crossbeam 11 of the platform 1 by screws, and the length direction of the slide rail 51 is consistent with the first direction X. In order to ensure the stability of the sliding adjustment of the support assembly 2 and the reliability of the support of the front hatch 100, refer to Figure 1 , two slide rails 51 can be provided, and the two slide rails 51 are respectively fixed on the crossbeams 11 on opposite sides of the platform 1 and are arranged in parallel. Correspondingly, the slider 52 can also be fastened to the support assembly 2 by screws, and a slider 52 is connected to each end of the support assembly 2, and each slider 52 is slidably matched with a corresponding slide rail 51, so that the stable sliding of the support assembly 2 can be achieved through the cooperation between the slider 52 and the slide rail 51.

[0100] As a possible implementation, Figure 3 for Figure 1 The enlarged view at A in Figure 2 shows the Figure 3, a plurality of first fixing holes 211 are provided on the support component 2, a second fixing hole 311 is provided on the first positioning member 3, and the first positioning member 3 is connected to the support component 2 through the cooperation of the connecting member, the second fixing hole 311 and at least part of the first fixing hole 211. Among them, the plurality of first fixing holes 211 are spaced apart in the second direction Y, and the first positioning member 3 can select part of the first fixing holes 211 for installation and fixing, so that the installation position can be adjusted in the second direction Y. Among them, the second fixing hole 311 can be a waist-shaped hole, so as to facilitate the fine adjustment of the first positioning member 3, which is conducive to the first positioning member 3 being selectively fixed at various positions of the support component 2, and expanding the installation position range of the first positioning member 3. In addition, the connecting member can be a screw, a pin, etc., and the connecting member can be fastened in the first fixing hole 211 after passing through the second fixing hole 311, so as to facilitate the disassembly and assembly operation of the first positioning member 3.

[0101] As a possible implementation, Figure 4 for Figure 1 The enlarged view at B in Figure 2 shows the Figure 4 The support assembly 2 includes a support plate 21, a reinforcement plate 22 and a connection plate 23. The support plate 21, the reinforcement plate 22 and the connection plate 23 can be connected and fixed by assembly. For example, the connection plate 23 can be connected to the end of the support plate 21 by screws, and the connection plate 23 can be connected and fixed to the slider 52 by screws. The support plate 21 is provided with a first fixing hole 211 for installing and fixing the first positioning member 3. Among them, the connection plate 23 and the support plate 21 can be designed and processed independently, so that it is convenient to match the support plate 21 and the connection plate 23 with better performance, such as mechanical performance, support strength, etc., to ensure the reliability of the support assembly 2 to support the front hood 100. The reinforcement plate 22 is connected to the bottom of the support plate 21. For example, the reinforcement plate 22 can be fixed to the bottom of the support plate 21 by screws, rivets, etc., so that the structural strength of the support plate 21 can be improved to ensure the reliability of the support to the front hood 100.

[0102] As a possible implementation, Figure 5 A schematic diagram of the structure of a front hatch testing device provided in another embodiment of the present application, Figure 6 for Figure 5 The enlarged view at C in Figure 2 is also shown in Figure 2. Figure 5 and Figure 6 The side wall of the reinforcing plate 22 may be provided with a plurality of first mounting holes 221, and the plurality of first mounting holes 221 are spaced apart along the second direction Y, wherein the side wall of the reinforcing plate 22 refers to the side wall of the reinforcing plate 22 in the first direction X. The testing device further includes a support 6, and the support 6 may be connected to the reinforcing plate 22 through the cooperation of a connecting member and at least part of the first mounting holes 221. Figure 7 A schematic diagram of a front hatch cover testing device provided in another embodiment of the present application, referring to Figure 7 , the support 6 can be used to connect the pop-up assembly 8. The pop-up assembly 8 is used to control the front bonnet 100 to pop up, so as to simulate the pop-up state when the front bonnet 100 collides with the head of a pedestrian. Exemplarily, the pop-up assembly 8 may include components such as a driver and a telescopic structure. The support 6 may be used to support the driver, the telescopic structure and other components. Part of the telescopic structure may be connected to the second positioning member 4. The telescopic structure may also be connected to the rear end 100b of the front bonnet 100. The driver may drive the telescopic structure to move. The rear end 100b of the front bonnet 100 may be controlled to pop up or reset through the telescopic structure, thereby simulating the collision between the front bonnet 100 and the head of a pedestrian. Among them, the pop-up assembly 8 may also include other structural forms. This embodiment does not specifically limit the specific structure of the pop-up assembly 8. It should be noted that the support 6 and the second positioning member 4 may be adjusted synchronously in the second direction Y. The pop-up assembly 8 may be installed and fixed by the cooperation of the support 6 and the second positioning member 4, and then the positioning and lifting and lowering control of the front bonnet 100 may be realized through the pop-up assembly 8. By adjusting the positions of the support 6 and the second positioning member 4 in the second direction Y, it is possible to adapt to positioning requirements of different types of front hoods 100 .

[0103] As a possible implementation, Figure 8 for Figure 1 The enlarged view at D in Fig. Figure 8 The test device further includes a locking assembly 7, through which the support assembly 2 is locked on the bench 1. The locking assembly 7 can lock or release the support assembly 2 to ensure that the support assembly 2 is reliably fixed on the bench 1, or to achieve movement and adjustment of the support assembly 2 on the bench 1.

[0104] In one embodiment, referring to Figure 8 The locking assembly 7 includes a knob 71, a locking member 72 and a guide rod 73, and the guide rod 73 is connected to the stand 1. The cross-sectional shape of the guide rod 73 can be circular, square, etc., which is not limited in this embodiment. The length direction of the guide rod 73 is consistent with the first direction X. When the locking member 72 is in a non-locking state, the locking member 72 can slide relative to the guide rod 73, and the guide rod 73 can provide guidance to ensure the stability of the sliding of the support assembly 2. In one embodiment, Fig. 9 The structural diagram of the locking member 72 provided in the embodiment of the present application is shown in FIG. Fig. 9The locking member 72 includes a first locking portion 721, a second locking portion 722 and a connecting portion 723, wherein the connecting portion 723 is connected to the supporting assembly 2, one end of the first locking portion 721 is connected to one end of the connecting portion 723, and the second locking portion 722 is connected to one end of the connecting portion 723 away from the first locking portion 721, and there is a gap 724 between the first locking portion 721 and the second locking portion 722, so that the cross-sectional shape of the locking member 72 is U-shaped. A first recessed portion 7211 is provided on the inner wall of the first locking portion 721, and a second recessed portion 7221 is provided on the inner wall of the second locking portion 722, and the first locking portion 721 and the second locking portion 722 are respectively sleeved on the guide rod 73 through the corresponding first recessed portion 7211 and the second recessed portion 7221. Among them, the inner surface shape of the first recessed portion 7211 and the second recessed portion 7221 can be consistent with the outer surface shape of the guide rod 73. For example, when the outer surface of the guide rod 73 is arc-shaped, the inner surfaces of the first recessed portion 7211 and the second recessed portion 7221 can also be arc-shaped, so that when the locking member 72 is in a locked state, the inner surfaces of the first recessed portion 7211 and the second recessed portion 7221 can be squeezed on the outer surface of the guide rod 73, and the first recessed portion 7211 and the second recessed portion 7221 can both have a large contact area with the guide rod 73, ensuring that the locking member 72 and the guide rod 73 are reliably locked and fixed.

[0105] In one embodiment, while referring to Figure 8 and Fig. 9The first locking portion 721 is provided with a first through hole 7212 , the second locking portion 722 is provided with a threaded hole 7222 , the knob 71 is provided with a screw rod, the screw rod passes through the first through hole 7212 , and the screw rod is threadedly connected with the threaded hole 7222 . When the screw is tightened in the threaded hole 7222 by operating the knob 71, the tightening force can cause the first locking portion 721 and the second locking portion 722 to undergo slight elastic deformation and move closer to each other, and the gap 724 between the first locking portion 721 and the second locking portion 722 is reduced. The first locking portion 721 and the second locking portion 722 are respectively squeezed on the guide rod 73 through the corresponding first recessed portion 7211 and the second recessed portion 7221, so as to achieve locking of the relative positions of the locking member 72 and the guide rod 73. Since the locking member 72 is connected to the support assembly 2 through the connecting portion 723, when the relative positions of the locking member 72 and the guide rod 73 are locked, the position of the support assembly 2 can be locked, so as to ensure that the support assembly 2 stably supports the front hood 100 at the locked position. When the screw rod is loosened in the threaded hole 7222 by operating the knob 71, the first locking portion 721 and the second locking portion 722 recover their deformation in the direction away from each other, so that the first recessed portion 7211 and the second recessed portion 7221 are released from the mutually squeezed state with the guide rod 73, for example, there is a slight gap 724 between the first recessed portion 7211 and the second recessed portion 7221 and the guide rod 73, so that the locking member 72 can slide relative to the guide rod 73, thereby realizing the movement and adjustment of the support assembly 2 relative to the stand 1. In one embodiment, in order to facilitate the processing of the locking member 72, the locking member 72 can be an integrally formed structure.

[0106] As a possible implementation, refer to Figure 3 The first positioning member 3 includes a positioning seat 31, a positioning block 32, a connecting bolt 33 and a nut 34. The positioning seat 31 is connected to the support assembly 2. The positioning block 32 is connected to the positioning seat 31. In one embodiment, the positioning block 32 can be connected to the positioning seat 31 by screws; in one embodiment, the positioning block 32 and the positioning seat 31 can also be integrally formed. The positioning block 32 includes a first limiting arm 321 and a second limiting arm 322, and a notch 323 is provided between the first limiting arm 321 and the second limiting arm 322. A second through hole is provided on the first limiting arm 321 and the second limiting arm 322. The connecting bolt 33 passes through the second through holes on the first limiting arm 321 and the second limiting arm 322 in turn and is locked and fixed with the nut 34. Among them, the front end 100a of the front hood 100 can have a lock. When the front hood 100 is installed on the test device, the notch 323 on the positioning block 32 can be used to avoid the lock on the front hood 100, so that the lock can be snapped onto the connecting nut 34, thereby realizing the rapid installation and positioning of the front hood 100, and the operation is simple.

[0107] As a possible implementation, as described above, refer to Figure 1 , two support assemblies 2 may be provided, and the two support assemblies 2 are spaced apart in the first direction X. The first positioning member 3 is adjustably connected to one support assembly 2 along the second direction Y, and the second positioning member 4 is adjustably connected to the other support assembly 2 along the second direction Y. The first positioning member 3 and the second positioning member 4 can both be adjusted along the second direction Y on the corresponding support assembly 2 to meet the positioning requirements of different types of front hatches 100, thereby achieving universality in testing different types of front hatches 100.

[0108] As a possible implementation, refer to Figure 6 , the second positioning member 4 may be provided with a third fixing hole 41, and the second positioning member 4 is connected to the support assembly 2 through the cooperation of the connecting member, the third fixing hole 41 and at least part of the first fixing hole 211. The connecting member may be a screw, and the screw may pass through the third fixing hole 41 and be fastened in the first fixing hole 211, thereby facilitating the disassembly and assembly of the second positioning member 4. In one embodiment, the third fixing hole 41 may be a waist-shaped hole, thereby facilitating the fine adjustment of the second positioning member 4, facilitating the second positioning member 4 to be selectively fixed at various positions of the support assembly 2, and expanding the installation position range of the second positioning member 4.

[0109] As a possible implementation, Fig.10 A schematic diagram of a front hatch cover testing device provided in another embodiment of the present application, referring to Fig.10 The test device also includes a support platform 9, which is located below the support assembly 2 and has a spacing with the support assembly 2. The support platform 9 is adjustably connected to the test bench 1 along the height direction Z of the test bench 1. The support platform 9 can be a metal plate, such as a steel plate, and the support platform 9 has good structural strength and can provide reliable support. The support platform 9 is used to place vehicle front cabin components such as a range extender to simulate the front cabin environment of the vehicle, so that the collision test results of the front cabin cover 100 are more accurate.

[0110] As a possible implementation, refer to Fig.10 The longitudinal beam 12 of the platform 1 may be provided with a plurality of second mounting holes 121, which are distributed in the height direction Z of the longitudinal beam 12, and the support platform 9 may be connected to the platform 1 through at least some of the second mounting holes 121. In one embodiment, Fig.11 A schematic diagram of the structure of a front hatch testing device provided in another embodiment of the present application (with the support platform 9 hidden). Fig.12 This is a schematic diagram of the structure of the connecting frame 10 provided in the embodiment of the present application, and also refers to Fig.11 and Fig.12The test device further includes a connecting frame 10, on which a third mounting hole 101 is provided. The connecting frame 10 is connected to the longitudinal beam 12 through the cooperation of a connecting member, the third mounting hole 101 and at least part of the second mounting hole 121. Fig.13 A schematic diagram of the structure of a front hatch cover testing device provided in another embodiment of the present application, referring to Fig.13 , a support portion 102 is also provided on the connecting frame 10, and the support portion 102 is bent in a direction away from the longitudinal beam 12, and the support platform 9 is supported on the support portion 102. Among them, the connection frame 10 can facilitate the connection between the support platform 9 and the platform 1. During the installation process, the connecting frame 10 can be adjusted to a suitable height on the longitudinal beam 12, and then the support platform 9 can be placed on the support portion 102 of the connecting frame 10. Of course, the support platform 9 can also be fastened to the support portion 102 of the connecting frame 10 by screws, which is simple and convenient to operate. In one embodiment, the third mounting hole 101 can be a waist-shaped hole, so as to facilitate the fine adjustment of the connecting frame 10, and then help the support platform 9 to have more adjustment positions in the height direction Z of the platform 1, which is conducive to simulating various different vehicle front cabin environments and enhancing versatility.

[0111] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A front hatch testing device, characterized in that: include: Stand; A support assembly, wherein the support assembly is slidably connected to the stand along a first direction; A first positioning member, the first positioning member is adjustably connected to the support assembly along a second direction and is used to position one end of the front hood of the vehicle along the first direction; A second positioning member, the second positioning member is adjustably connected to the stand along a second direction, the second positioning member and the first positioning member are spaced apart along the first direction, and are used to position the other end of the front hatch along the first direction.

2. The front hatch testing device according to claim 1, characterized in that: Also included is a sliding assembly, through which the support assembly is connected to the stand in a slidable manner.

3. The front hatch testing device according to claim 2, characterized in that: The sliding assembly comprises a sliding rail and a sliding block, wherein the sliding rail is connected to the platform, the sliding block is connected to the supporting assembly, and the sliding block is slidably connected to the sliding rail.

4. The front hatch testing device according to any one of claims 1 to 3, characterized in that: The support assembly is provided with a plurality of first fixing holes, the first positioning member is provided with a second fixing hole, and the first positioning member is connected to the support assembly through the cooperation of a connecting member, the second fixing holes and at least part of the first fixing holes.

5. The front hatch testing device according to claim 4, characterized in that: The support assembly includes a support plate, a reinforcement plate and a connection plate, wherein the connection plate is connected to the end of the support plate, the support plate is slidably connected to the stand through the connection plate, and the support plate is provided with the first fixing hole; The reinforcing plate is connected to the bottom of the supporting plate.

6. The front hatch testing device according to claim 5, characterized in that: It also includes a support, and a plurality of first mounting holes are arranged on the side wall of the reinforcing plate, and the plurality of first mounting holes are spaced apart and distributed along the second direction. The support is connected to the reinforcing plate through the cooperation of a connecting member and at least part of the first mounting holes.

7. The front hatch testing device according to any one of claims 1 to 3, characterized in that: It also includes a locking assembly, and the supporting assembly is locked on the stand through the locking assembly.

8. The front hatch testing device according to claim 7, characterized in that: The locking assembly includes a knob, a locking member and a guide rod, and the guide rod is connected to the stand; The locking member comprises a first locking portion, a second locking portion and a connecting portion, wherein the connecting portion is connected to the supporting assembly; one end of the first locking portion is connected to one end of the connecting portion, and the second locking portion is connected to an end of the connecting portion away from the first locking portion, and a gap is provided between the first locking portion and the second locking portion, so that the cross-sectional shape of the locking member is U-shaped; A first recessed portion is provided on the inner wall of the first locking portion, and a second recessed portion is provided on the inner wall of the second locking portion. The first locking portion and the second locking portion are respectively sleeved on the guide rod through the corresponding first recessed portion and the second recessed portion; The first locking portion is provided with a first through hole, the second locking portion is provided with a threaded hole, the knob is provided with a screw rod, the screw rod passes through the first through hole, and the screw rod is threadedly connected to the threaded hole.

9. The front hatch testing device according to any one of claims 1 to 3, characterized in that: The first positioning member includes a positioning seat, a positioning block, a connecting bolt and a nut, and the positioning seat is connected to the supporting assembly; The positioning block is connected to the positioning seat, and the positioning block includes a first limiting arm and a second limiting arm, and a notch is provided between the first limiting arm and the second limiting arm; The first limiting arm and the second limiting arm are both provided with a second through hole, and the connecting bolt passes through the second through holes on the first limiting arm and the second limiting arm in sequence and is then locked and fixed with the nut.

10. The front hatch testing device according to any one of claims 1 to 3, characterized in that: The support components are provided with two, and the two support components are spaced apart and distributed in the first direction; The first positioning member is adjustably connected to one of the supporting components along the second direction, and the second positioning member is adjustably connected to the other supporting component along the second direction.

11. The front hatch testing device according to claim 10, characterized in that: The second positioning member is provided with a third fixing hole, and the second positioning member is connected to the supporting assembly through the cooperation of the connecting member, the third fixing hole and at least part of the first fixing hole.

12. The front hatch testing device according to any one of claims 1 to 3, characterized in that: It also includes a support platform, which is located below the support assembly and has a distance between the support platform and the support assembly; the support platform is adjustably connected to the stand along the height direction of the stand.

13. The front hatch testing device according to claim 12, characterized in that: The stand comprises a longitudinal beam, and the longitudinal beam is provided with a plurality of second mounting holes along the height direction; The front hatch test device further includes a connecting frame, on which a third mounting hole is provided, and the connecting frame is connected to the longitudinal beam through the cooperation of a connecting member, the third mounting hole and at least a part of the second mounting hole; The connecting frame is also provided with a supporting portion, the supporting portion is bent in a direction away from the longitudinal beam, and the supporting platform is supported on the supporting portion.

14. The front hatch testing device according to any one of claims 1 to 3, characterized in that: A roller assembly is arranged at the bottom of the stand.

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