Collision test device and system

Abstract

The utility model belongs to the technical field of battery testing, and provides a collision testing device and system, and the device comprises a collision part, a supporting part, an elastic part, and an adjusting mechanism. The collision part is used for colliding equipment needing to be subjected to a collision test; the collision part is inserted into the supporting part in a sliding manner; the elastic piece is arranged on the supporting part, located between the collision part and the supporting part and stretches out and draws back in the sliding direction of the collision part relative to the supporting part. The adjusting mechanism is used for adjusting the orientation of the supporting part; the adjusting mechanism comprises a first adjusting mechanism which is used for adjusting the included angle between the supporting part and the horizontal plane so as to adjust the included angle between the sliding direction of the collision part relative to the supporting part and the horizontal plane. The objective of the utility model is to reduce the influence of a vehicle forecabin structure in the process of underpinning collision testing of a vehicle bottom battery device.

Description

Technical Field

[0001] This application belongs to the field of battery testing technology, and in particular relates to a collision testing device and system. Background Technology

[0002] As new energy electric vehicle technology matures and their adoption rate increases, the safety monitoring of the battery, the power source of these vehicles, becomes paramount. Battery collision detection is a crucial mechanism for ensuring battery safety in the event of a collision. Battery collision detection equipment includes various types of testing devices, such as simulated collision testing equipment, bottom-out testing equipment, and crush testing machines. These devices play a vital role in the safety performance evaluation of electric vehicles.

[0003] Among various crash tests for electric vehicles, the bottom-impact test of the battery pack during driving is a crucial part. In existing technologies, when the collision device of the existing test equipment is used to conduct the bottom-impact test of the battery pack, the front of the electric vehicle first contacts the collision device, that is, the bottom of the front compartment structure of the electric vehicle collides with the collision device first. During this process, the driving path of the electric vehicle will deviate, affecting the bottom-impact test of the battery pack. In other words, because the direction of the electric vehicle's deviation is uncontrollable, it is not possible to conduct the collision test on a specific location of the battery pack, which has a certain impact on the crash test. Utility Model Content

[0004] In view of the above problems, this application provides a collision testing device and system, which aims to reduce the impact of the vehicle's front compartment structure on the bottom battery device of the vehicle during the bottom collision test.

[0005] To address the aforementioned problems, in a first aspect, embodiments of this application provide a collision testing apparatus, comprising:

[0006] Collision unit, a device used for collision testing;

[0007] The collision part is slidably inserted into the support part;

[0008] An elastic element, disposed on the support portion, is located between the collision portion and the support portion, and extends and retracts in the direction in which the collision portion slides relative to the support portion; and

[0009] An adjustment mechanism is provided for adjusting the orientation of the support portion; the adjustment mechanism includes a first adjustment mechanism for adjusting the angle between the support portion and the horizontal plane, so as to adjust the angle between the direction of the sliding of the collision portion relative to the support portion and the horizontal plane.

[0010] The effect of this embodiment is that when the front compartment structure of the vehicle impacts the collision part, the collision part will elastically compress, thereby buffering the impact of the vehicle, reducing the risk of possible vehicle deviation, minimizing the impact caused by vehicle deviation, increasing the probability that the collision part can impact a specific part of the battery device, and adjusting the specific orientation of the support part and the collision part, thereby enabling testing of different positions of the battery device, thus accurately obtaining the impact resistance of each part of the battery device, so as to further improve and reinforce the battery device, etc. The first adjustment mechanism can realize the adjustment of the angle of the collision part, so that the collision part can impact the bottom of the battery device in a suitable posture or at a specific part, thereby testing the impact resistance of the bottom of the battery device under various working conditions to obtain more accurate and comprehensive test results.

[0011] In one embodiment of the first aspect, the first adjusting mechanism includes:

[0012] A support base, wherein a shaft is provided on the support base, and the support portion is rotatably connected to the shaft with the axis of rotation being a first axis; and

[0013] A driving mechanism, mounted on the support, drives the support portion to rotate around the axis and can be positioned at any point along the rotation path. The advantage of this embodiment is that it provides a simple and convenient means of adjusting the angle of the support portion and the collision portion, achieving stable adjustment.

[0014] In one embodiment of the first aspect, the drive mechanism includes:

[0015] The sleeve is provided with internal threads and is rotatably mounted on the support, with the axis of rotation being the second axis.

[0016] A screw, wherein the screw is threaded into the sleeve and has an exposed section, the length direction of the screw coinciding with the direction of the second axis; and

[0017] A slide block is slidably connected to the support portion. The sliding trajectory of the slide block on the support portion is perpendicular to the first axis direction. The exposed section of the screw is rotatably connected to the slide block, and the axis of rotation is a third axis. The third axis is parallel to the first axis, and the second axis is perpendicular to the third axis.

[0018] The advantage of this embodiment is that it provides a specific form of the drive mechanism, which is simple in structure and easy to operate. The angle of the support part can be adjusted by manually adjusting the sleeve.

[0019] In one embodiment of the first aspect, the adjustment mechanism further includes a second adjustment mechanism for adjusting the position of the support in a first direction, wherein the angle between the first direction and the direction of movement of the device to be subjected to the collision test is 80-100 degrees.

[0020] The advantage of this embodiment is that the positions of the support and the collision part can be adjusted during the process of encountering a vehicle bottoming-out impact, so that different parts of the battery device can be impacted, making the test more comprehensive and accurate.

[0021] In one embodiment of the first aspect, the second adjustment mechanism includes:

[0022] Adjusting seat, the adjusting seat being fixedly connected to the support seat, the adjusting seat being provided with a threaded hole; and

[0023] An adjusting rod is provided with an external thread that is adapted to the threaded hole. The adjusting rod passes through the threaded hole. The adjusting rod rotates to move the adjusting seat and drive the support seat to move along a first direction. The adjusting rod has at least two sections with opposite external thread helical directions along its length so that the adjusting seats respectively passing through the two sections move closer or further away synchronously.

[0024] The collision testing device also includes a fixed base, and the adjusting base, the adjusting rod, and the supporting base are all disposed on the fixed base.

[0025] The advantage of this embodiment is that the position of the collision part can be adjusted manually or electrically by rotating the adjusting rod. The adjustment structure is simple and reliable. By setting rod segments with opposite external thread directions on the adjusting rod, symmetrical adjustment of different collision parts is achieved, meeting the testing requirements. This embodiment also provides a fixing base, giving each structure a carrier and ensuring the stability of each structure.

[0026] In one embodiment of the first aspect, the support portion includes:

[0027] Support plate; and

[0028] A cylindrical base is provided on the support plate, and the elastic element is provided inside the cylindrical base. The collision part is inserted into the cylindrical base.

[0029] The collision part includes:

[0030] The connector is slidably inserted into the cylindrical base and abuts against the elastic element;

[0031] A collision seat, fixedly disposed at the exposed end of the plug-in socket, wherein the collision seat is provided with a receiving groove; and

[0032] The collider is detachably installed in the receiving slot and is used to collide with the device under test.

[0033] The advantage of this embodiment is that the support part includes a support plate, and the cylinder seat is disposed on the support plate, providing a carrier for the cylinder seat. Simultaneously, the support plate can connect to the aforementioned shaft, thereby allowing adjustment of the angle between the support part and the collision part. Furthermore, the structure is stable and the fit is reasonable, enabling the collision body to effectively impact the battery device at a certain speed.

[0034] In one embodiment of the first aspect, the two ends of the receiving groove penetrate through the two opposite sidewalls of the collision seat. The collision body is plate-shaped and is bolted to the receiving groove. The collision body is inclined and forms an angle with the horizontal plane. This embodiment provides a connection method between the collision body and the collision seat, which can be bolted to the receiving groove. Specifically, holes can be provided on the collision body, and threaded holes can be provided on the groove wall of the receiving groove. Bolts are passed through the holes on the collision body and threaded into the holes of the receiving groove to achieve locking. This connection method is easy to disassemble and has a good locking effect. Furthermore, this embodiment also provides that the two ends of the receiving groove penetrate through the two opposite sidewalls of the collision seat, which makes it easier to install the collision body, reduces obstruction structures, and the collision body is inclined and forms an angle with the horizontal plane. That is, when impacted, the collision body can face the vehicle at an angle upward, so that vertical pressure can be generated when colliding with the front compartment structure of the vehicle, thereby compressing the elastic element.

[0035] In one embodiment of the first aspect, the cylindrical base further includes a rotatably mounted column. An elastic element is fitted over the column. A guide plate extending spirally around the column's axis is provided on the column's surface. The insertion seat is a hollow structure capable of accommodating the column. An abutment is provided at the insertion end of the insertion seat. When the insertion seat moves relative to the cylindrical base, the abutment slides against the guide plate and drives the column to rotate. The advantage of this embodiment is that when the insertion seat moves, the abutment and guide plate maintain multi-point contact, making the movement of the insertion seat smoother.

[0036] In one embodiment of the first aspect, there are at least two abutting bodies and at least one guide plate. At least one abutting body is used to slide against the surface of any one of the guide plates facing the plug-in seat, and at least one abutting body is used to slide against the surface of any one of the guide plates facing the bottom of the cylinder seat. This embodiment ensures that an abutting force is formed between the abutting body and the guide plate during the upward or downward movement of the plug-in seat. Furthermore, there can be multiple abutting bodies to provide multiple contact forces, resulting in better stability of the plug-in seat during movement.

[0037] In one embodiment of the first aspect, at least two of the abutting bodies are respectively used to slide against the surfaces of different guide plates facing the plug seat; and / or, at least two of the abutting bodies are respectively used to slide against the surfaces of different guide plates facing the bottom of the cylinder seat. The effect of this embodiment is to distribute the compressive force as much as possible. During the upward and / or downward movement of the plug seat, at least two abutting bodies respectively compress different guide plates, that is, there are at least two dispersed compressive forces, ensuring the stability of the plug seat during movement.

[0038] Secondly, this application also provides a collision testing system, including the collision testing apparatus described in any of the embodiments.

[0039] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0041] Figure 1 This is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0042] Figure 2 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0043] Figure 3 This is a schematic diagram of the structure of a collision testing device provided in some embodiments of this application;

[0044] Figure 4 for Figure 3 A schematic diagram of the collision section, support section, first adjustment mechanism, and second adjustment mechanism;

[0045] Figure 5 for Figure 4 A structural diagram from another angle;

[0046] Figure 6 for Figure 4 Schematic diagram of the structure of the collision section and the cylinder base;

[0047] Figure 7 for Figure 6 A schematic diagram of the internal mating structure between the middle insert connector and the cylinder seat;

[0048] Figure 8 A schematic diagram of the mating structure of the abutment and the guide plate provided in some embodiments of this application;

[0049] Figure 9 for Figure 5 A schematic diagram of the first regulating mechanism.

[0050] The reference numerals in the detailed embodiments are as follows:

[0051] 1000, vehicles;

[0052] 100. Battery assembly; 200. Controller; 300. Motor;

[0053] 10. Collision part; 101. Insertion seat; 102. Collision seat; 103. Receiving groove; 104. Reinforcing rib; 105. Collision body; 20. Support part; 201. Support plate; 202. Cylinder seat; 203. Elastic element; 204. Column; 205. Guide plate; 206. Abutment body; 30. First adjustment mechanism; 301. Support seat; 302. Shaft; 303. Drive mechanism; 3031. Sleeve; 3032. Screw; 3033. Slide; 40. Second adjustment mechanism; 41. Adjustment seat; 42. Adjustment rod; 50. Fixed seat; 60. First axis; 70. Second axis; 80. Third axis. Detailed Implementation

[0054] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0056] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0059] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0060] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0061] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0062] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery application areas, the market demand is also constantly increasing.

[0063] A battery device may include multiple battery cells, which are arranged in a manner that can form multiple battery cell assemblies. Each battery cell assembly may be called a battery module. The electrode terminals of multiple battery cells within the same battery cell assembly are connected in series or in parallel. Different battery cell assemblies may also be connected to each other.

[0064] A battery apparatus may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed series-parallel configurations via busbars.

[0065] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0066] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0067] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0068] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0069] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0070] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0071] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0072] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0073] Battery devices are commonly used in electrical appliances, which can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, among others. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not impose any special limitations on the aforementioned electrical appliances.

[0074] The safety of battery devices is of paramount importance, especially when they are installed in electrical appliances. The operating environment of these appliances can have a significant impact on the battery devices. Taking vehicles as an example, vehicles often travel at high speeds and encounter a variety of road conditions, which could potentially cause hard collisions to the battery devices. Therefore, during the production and testing of vehicles, it is necessary to simulate various operating conditions and conduct crash tests to assess the safety of the battery devices.

[0075] In related technologies, when conducting crash tests on the battery device at the bottom of a vehicle, the vehicle is in motion and then impacts a collision component to simulate a bottoming-out test of the battery device. However, while in motion, the bottom of the vehicle's front compartment structure first collides with the collision component. The collision causes the vehicle to deviate from its course, and the deviation is uncontrollable, thus affecting the crash test of specific locations of the battery device and impacting the crash test results.

[0076] Please see Figure 2 This is a schematic diagram of the structure of a battery device 100 provided in some embodiments of this application.

[0077] Please refer to Figure 1 , Figure 1This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0078] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0079] In view of the above problems, this application provides a collision test device and system, which aims to reduce the impact of the front compartment structure of vehicle 1000 on the bottom battery device 100 of vehicle 1000 during the bottom-out collision test.

[0080] Please see Figures 3-6 This application provides a collision testing device, including a collision part 10, a support part 20, an elastic element 203, and an adjustment mechanism. The collision part 10 is used to collide with the equipment to be tested; the collision part 10 is slidably inserted into the support part 20; the elastic element 203 is disposed on the support part 20, and the elastic element 203 is located between the collision part 10 and the support part 20, and the elastic element 203 extends and retracts in the direction in which the collision part 10 slides relative to the support part 20; the adjustment mechanism is used to adjust the orientation of the support part 20; the adjustment mechanism includes a first adjustment mechanism 30, which is used to adjust the angle between the support part 20 and the horizontal plane, so as to adjust the angle between the direction in which the collision part 10 slides relative to the support part 20 and the horizontal plane.

[0081] The collision testing device provided in this embodiment can be used for a vehicle 1000 to conduct a collision test on the vehicle 1000 during driving, especially for a bottom-out collision test of the battery device 100 at the bottom of the vehicle 1000.

[0082] Specifically, the collision part 10 refers to the part that collides with the vehicle 1000 during a collision test. The device to be tested can be an electric vehicle. The support part 20 is used to connect the collision part 10, specifically, the collision part 10 is inserted into the support part 20. It also has an elastic element 203, which is disposed between the collision part 10 and the support part 20. The elastic element 203 can be a spring. When the collision part 10 is collided with, it slides on the support part 20, sliding towards the support part 20, thereby compressing the spring. After the collision is eliminated, the collision part 10 can rebound under the elastic force of the elastic element 203.

[0083] During the bottom-out collision test of the battery device 100 at the bottom of the vehicle 1000, the collision test device is set in front of the vehicle 1000. The vehicle 1000 drives toward the collision test device at a certain speed. First, the bottom of the front compartment structure of the vehicle 1000 hits the collision part 10. While enduring the horizontal impact, the collision part 10 also endures the vertical impact. Because the collision part 10 cannot be lower than the battery device 100 to be hit in order to achieve the bottom-out test, it will also hit the front compartment structure. Since the collision part 10 is also subjected to the vertical impact, it will move toward the support part 20. At this time, the elastic member 203 is compressed. When the front compartment structure passes the collision part 10, the collision part 10 is pushed out again under the rebound of the elastic member 203. At this time, the battery device 100 at the rear of the vehicle 1000 passes the collision part 10. The collision part 10 hits the battery device 100 at a certain speed under the rebound of the elastic member 203, thereby achieving the bottom-out collision test of the battery device 100.

[0084] The adjustment mechanism is used to adjust the orientation of the support portion 20. Specifically, since the support portion 20 and the collision portion 10 are interconnected, adjusting the orientation of the support portion 20 also adjusts the orientation of the collision portion 10; essentially, it is an adjustment of the orientation of the collision portion 10. Because the bottom-support test of the battery device 100 involves collision tests at different positions of the battery device 100, it is necessary to adjust the specific orientation of the collision portion 10.

[0085] like Figure 5 The adjustment mechanism includes a first adjustment mechanism 30, which is used to adjust the angle between the support portion 20 and the horizontal plane, thereby adjusting the angle between the sliding direction of the collision portion 10 relative to the support portion 20 and the horizontal plane. Specifically, orientation includes the current position and the angle or state presented in that position, both of which are adjustable. The first adjustment mechanism 30 is used to adjust the angle between the support portion 20 and the horizontal plane, that is, to adjust the angle between the collision portion 10 and the horizontal plane.

[0086] The effect of this embodiment is that when the front compartment structure of the vehicle 1000 impacts the collision part 10, the collision part 10 will elastically compress, thereby buffering the impact of the vehicle 1000, reducing the risk of the vehicle 1000 deviating, reducing the impact caused by the vehicle 1000 deviating, and increasing the probability that the collision part 10 can impact a specific part of the battery device 100; and the adjustment mechanism of this embodiment can adjust the specific orientation of the support part 20 and the collision part 10, thereby enabling testing of different positions of the battery device 100, thereby accurately obtaining the impact resistance of each part of the battery device 100, so as to further improve and reinforce the battery device 100; the first adjustment mechanism 30 can realize the adjustment of the angle of the collision part 10, so that the collision part 10 can impact the bottom of the battery device 100 in a suitable posture or at a specific part, thereby testing the impact resistance of the bottom of the battery device 100 under various working conditions to obtain more accurate and comprehensive test results.

[0087] In some embodiments, such as Figure 5 The first adjustment mechanism 30 includes a support 301 and a drive mechanism 303.

[0088] The support 301 is provided with a shaft 302, and the support part 20 is rotatably connected to the shaft 302 with the axis of rotation being the first axis 60.

[0089] The drive mechanism 303 is mounted on the support 301. The drive mechanism 303 is used to drive the support part 20 to rotate around the shaft 302 and can be positioned at any position on the rotation path.

[0090] This embodiment provides a specific structural form of the first adjustment mechanism 30. The support 301 plays a supporting role. To adjust the angle of the support 20 and the collision part 10, both need to be rotated. This rotation requires an attached carrier, and the support 301 provides such a carrier. A shaft 302 is provided on the support 301, and the support 20 is rotatably connected to the shaft 302. The angle of the support 20 is adjusted by rotation. The shaft 302 can be fixedly set, and the support 20 can be rotatably set on the shaft 302. Alternatively, the support 20 can be fixedly connected to the shaft 302, and the shaft 302 can be rotatably set on the support 301.

[0091] This embodiment also provides a drive mechanism 303, which is also provided on the support 301. Its function is to drive the support 20 to rotate. When adjusted to a suitable position, the support 20 and the collision part 10 can be positioned in a specific position to conduct an impact test.

[0092] The advantage of this embodiment is that the means of adjusting the angle of the support part 20 and the collision part 10 is simple and convenient, and stable adjustment is achieved.

[0093] In some embodiments, such as Figure 5 and Figure 9 The drive mechanism 303 includes a sleeve 3031, a screw 3032, and a slide 3033.

[0094] The sleeve 3031 is provided with internal thread and is rotatably mounted on the support 301 with the axis of rotation being the second axis 70.

[0095] The screw 3032 is threaded into the sleeve 3031 and has an exposed section. The length direction of the screw 3032 coincides with the direction of the second axis 70. The slide 3033 is slidably connected to the support 20. The sliding trajectory of the slide 3033 on the support 20 is perpendicular to the direction of the first axis 60. The exposed section of the screw 3032 is rotatably connected to the slide 3033 and the axis of rotation is the third axis 80. The third axis 80 is parallel to the first axis 60, and the second axis 70 is perpendicular to the third axis 80.

[0096] Specifically, the sleeve 3031 has a cavity with an internal thread on the inner wall of the cavity. The sleeve 3031 is rotatably mounted on the support 301 with the rotation axis being the second axis 70. The sleeve 3031 can be manually driven to rotate. A protruding surface structure can be provided on the outer wall or end of the sleeve 3031 to facilitate manual manipulation, thereby driving the sleeve 3031 to rotate.

[0097] The screw 3032 is inserted into the sleeve 3031, specifically by being threaded into the inner cavity of the sleeve 3031. When the sleeve 3031 rotates, the screw 3032 can move along the length of the sleeve 3031, i.e., along the length of the second axis 70. The exposed end of the screw 3032 is rotatably connected to the slide block 3033, with the axis of rotation being the third axis 80. When the screw 3032 moves along the length of the sleeve 3031, it pushes the slide block 3033 to move. In this way, the slide block 3033 can push the support part 20 to rotate around the shaft 302, and at the same time, the slide block 3033 can rotate relative to the screw 3032 around the third axis 80. Since the sliding trajectory of the slide block 3033 is perpendicular to the length of the shaft 302, i.e., perpendicular to the first axis 60, and the third axis 80 is parallel to the first axis 60, and the second axis 70 is perpendicular to the third axis 80, the above operation can be achieved without any jamming or obstruction of movement.

[0098] When the appropriate angle is reached, the rotation of the sleeve 3031 stops, and certain measures can be taken to lock the sleeve 3031 to prevent possible rotation of the sleeve 3031. The support part 20 and the collision part 10 can be positioned at the adjusted angle.

[0099] The advantage of this embodiment is that it provides a specific form of the drive mechanism 303, which has a simple structure and is easy to operate. The angle of the support part 20 can be adjusted by manually adjusting the sleeve 3031.

[0100] In some embodiments, such as Figure 3 and Figure 4 The adjustment mechanism also includes a second adjustment mechanism 40, which is used to adjust the position of the support 20 in the first direction. The angle between the first direction and the direction of movement of the equipment to be tested for collision is 80-100 degrees. The first direction is... Figure 3 The direction of the middle arrow.

[0101] In addition to adjusting the angle, the position of the support 20 in the first direction can also be adjusted.

[0102] The first direction can be a direction perpendicular to the direction of travel of the vehicle 1000. This direction can also be the length direction of the shaft 302 in the first adjustment mechanism 30, that is, the direction of the first axis 60.

[0103] The advantage of this embodiment is that the positions of the support part 20 and the collision part 10 can be adjusted during the bottoming-out impact of the vehicle 1000, so that the battery device 100 can be impacted at different positions, making the test more comprehensive and accurate.

[0104] In some embodiments, such as Figure 3 and Figure 4 The second adjustment mechanism 40 includes an adjustment seat 41 and an adjustment rod 42.

[0105] Adjusting seat 41 is fixedly connected to support seat 301, and adjusting seat 41 is provided with a threaded hole; adjusting rod 42 is provided with an external thread adapted to the threaded hole, adjusting rod 42 passes through the threaded hole, and adjusting rod 42 rotates to move adjusting seat 41 and drive support seat 301 to move in the first direction; such as Figure 3 and Figure 4 The adjusting rod 42 has at least two sections with opposite external thread directions along its length, so that the adjusting seats 41, which are respectively inserted into the two sections, move closer or further away synchronously; for example Figure 3 and Figure 4 The collision test device also includes a fixed base 50, an adjusting base 41, an adjusting rod 42, and a support base 301, all of which are mounted on the fixed base 50.

[0106] Specifically, the second adjustment mechanism 40 provided in this embodiment can be understood as a lead screw mechanism. The adjustment rod 42 is a rotatable structure, and its position does not change when it rotates. As the adjustment rod 42 rotates, the adjustment seat 41 can move along the length direction of the adjustment rod 42. The length direction of the adjustment rod 42 can be the first direction. When the adjustment seat 41 moves, it drives the support seat 301 to move along the first direction. Then the support part 20 and the collision part 10 also move along the first direction, realizing position adjustment in the first direction.

[0107] like Figure 3 and Figure 4 The adjusting rod 42 has at least two sections with opposite external thread directions along its length, so that the adjusting seats 41 respectively passing through the two sections move closer or further away synchronously. Specifically, this embodiment provides that multiple adjusting seats 41 can be provided, each adjusting seat 41 is connected to a support seat 301, and each support seat 301 can be provided with a support part 20 and a collision part 10. That is, the position of multiple support seats 301 can be adjusted by rotating one adjusting rod 42, that is, the position of multiple support parts 20 and collision parts 10 can be adjusted. In some cases, it is necessary to collide multiple parts of the battery device 100 at the same time, so multiple collision parts 10 can be provided. In this case, the adjusting rod 42 of this embodiment can adjust the position of multiple adjusting seats 41 by passing through multiple corresponding adjusting seats 41.

[0108] In some cases, multiple collision parts 10 are required to be positioned symmetrically along the driving path of the vehicle 1000. Therefore, when adjusting the positions of multiple collision parts 10 simultaneously, the adjusting seats 41 are made to move closer or further away synchronously. This way, the positions are adjusted but remain symmetrical, without affecting the collision test requirements. Based on this, this embodiment provides an adjusting rod 42 with opposite external thread helical directions. After being threadedly connected to the adjusting seats 41, when the adjusting rod 42 rotates, the adjusting seats 41 located on opposite sections of the external thread helical directions achieve synchronous symmetrical movement and adjustment.

[0109] It should be noted that in some cases, if it is not desired for a certain collision part 10 to move when the adjusting rod 42 rotates, such as when the collision part 10 located in the middle position does not need to be adjusted, then the adjusting seat 41 corresponding to the collision part 10 can be provided with a hole without threads. At the same time, a rod segment without external threads is preset on the adjusting rod 42, so that the adjusting seat 41 is located on the rod segment. Then, when the adjusting rod 42 rotates, the adjusting seat 41 does not move, and the collision part 10 does not move. Alternatively, the adjusting seat 41 can be directly fixed, and the support seat 301 corresponding to the adjusting seat 41 can also be fixed.

[0110] It should also be noted that after the position is adjusted, the adjusting rod 42 can be locked to prevent it from rotating, so as to position the collision part 10 and make it stably collide with the battery device 100.

[0111] like Figure 3 and Figure 4 The collision testing device also includes a fixed base 50, and an adjusting base 41, an adjusting rod 42, and a support base 301 are all mounted on the fixed base 50. Specifically, this embodiment provides a fixed base 50, which can be a seat fixed at the test site. The above-mentioned adjustments are all performed on the fixed base 50, including the rotation of the adjusting rod 42, the movement of the adjusting base 41, and the movement of the support base 301. The direction of movement can be the length direction of the fixed base 50, and the length of the fixed base 50 is the length direction of the adjusting rod 42, i.e., the first direction.

[0112] The advantage of this embodiment is that the position of the collision part 10 can be adjusted by manually or electrically rotating the adjusting rod 42, and the adjustment structure is simple and reliable; by setting rod segments with opposite external thread helical directions on the adjusting rod 42, symmetrical adjustment of different collision parts 10 is achieved, which meets the test requirements; and a fixed seat 50 is provided, so that each structure has a carrier and ensures the stability of each structure.

[0113] In some embodiments, such as Figures 5-7 The support part 20 includes a support plate 201 and a cylinder base 202.

[0114] The cylindrical base 202 is mounted on the support plate 201, and an elastic element 203 is provided inside the cylindrical base 202. The collision part 10 is inserted into the cylindrical base 202. Figure 5 and Figure 6 The collision part 10 includes a connector 101, a collision seat 102, and a collision body 105. The connector 101 is slidably inserted into the cylindrical base 202 and abuts against the elastic member 203; the collision seat 102 is fixed to the exposed end of the connector 101 and is provided with a receiving groove 103; the collision body 105 is detachably installed in the receiving groove 103 and is used to collide with the device under test.

[0115] Specifically, the support part 20 is a structure used to support the collision part 10. The support part 20 is designed to include a cylindrical seat 202, which facilitates the insertion of the collision part 10 and realizes the connection between the support part 20 and the collision part 10. The cylindrical seat 202 refers to a cylindrical seat with a hollow inner cavity and at least one end is open, used for the insertion of the collision part 10. Due to the cylindrical insertion form, it is more stable during relative movement, and the collision part 10 can move along a predetermined trajectory. Another function of the cylindrical seat 202 is that the elastic element 203 is provided inside the cylindrical seat 202, which can restrain the elastic element 203, so that the elastic element 203 will not shift or shake when it deforms, thus ensuring a smooth and stable extension and contraction state.

[0116] The support part 20 also includes a support plate 201, and a cylinder seat 202 is disposed on the support plate 201, providing a carrier for the cylinder seat 202. At the same time, the support plate 201 can be connected to the aforementioned shaft 302, thereby enabling the adjustment of the angle between the support part 20 and the collision part 10.

[0117] This embodiment also provides a specific structure of the collision part 10, including a plug-in seat 101 and a collision seat 102. The plug-in seat 101 is used to plug into the cylinder seat 202 and abut against the spring. The collision seat 102 is used to support the collision body 105. The collision body 105 is used to collide with the battery device 100. The collision body 105 is detachably installed in the receiving groove 103 of the collision seat 102.

[0118] First, during the test, the bottom of the front compartment structure of vehicle 1000 collides with the collision body 105. The collision body 105 presses down, causing the connector 101 to slide down relative to the cylinder seat 202, thereby compressing the elastic element 203. When the front compartment structure moves away from the collision body 105, the connector 101 rises under the action of elasticity. In this way, the collision body 105 can impact the battery device 100 at a certain speed, thus achieving the collision test of the battery device 100.

[0119] It should be noted that the collider 105 is installed in the receiving groove 103, but at least a part of the collider 105 extends out of the receiving groove 103 and can be used to collide with the battery device 100. Furthermore, the collider 105 is detachable, so that different types of collider 105 can be replaced according to different needs.

[0120] The advantage of this embodiment is that the structure is stable and the combination is reasonable, which enables the collision body 105 to effectively collide with the battery device 100 at a certain speed.

[0121] In some embodiments, in order to strengthen the connection between the collision seat 102 and the plug seat 101, a reinforcing rib 104 may be provided between the two.

[0122] In some embodiments, such as Figure 5 and Figure 6 The two ends of the receiving groove 103 pass through the two opposite side walls of the collision seat 102. The collision body 105 is plate-shaped and is connected to the receiving groove 103 by bolts. The collision body 105 is inclined and forms an angle with the horizontal plane.

[0123] This embodiment provides a connection method between the collision body 105 and the collision seat 102, which can be connected in the receiving groove 103 by bolts. Specifically, holes can be provided in the collision body 105, and threaded holes can be provided in the groove wall of the receiving groove 103. The bolts are passed through the holes in the collision body 105 and threaded into the holes in the receiving groove 103 to achieve locking. This connection method is easy to disassemble and has a good locking effect. In addition, this embodiment also provides that the two ends of the receiving groove 103 penetrate through the two opposite side walls of the collision seat 102, which makes it easier to install the collision body 105 and reduces the obstruction structure. The collision body 105 is inclined and forms an angle with the horizontal plane, that is, when impacted, the collision body 105 can face the vehicle 1000 at an angle upward. This can generate vertical pressure when colliding with the front compartment structure of the vehicle, thereby compressing the elastic element 203.

[0124] In some embodiments, such as Figure 7 and Figure 8 The cylindrical base 202 is also provided with a rotatable column 204. An elastic element 203 is sleeved on the column 204. A guide plate 205 extending around the axis of the column 204 in a spiral shape is provided on the surface of the column 204. The plug-in seat 101 is a hollow structure that can accommodate the column 204. An abutment 206 is provided at the plug-in end of the plug-in seat 101. When the plug-in seat 101 moves relative to the cylindrical base 202, the abutment 206 slides in contact with the guide plate 205 and drives the column 204 to rotate.

[0125] Specifically, the plug-in seat 101 will move along the cylinder seat 202 under the action of collision or elastic member 203. The plug-in seat 101 and the cylinder seat 202 are slidably plugged in. However, in order to further increase the stability when the plug-in seat 101 moves, this embodiment provides a column 204, a guide plate 205 and an abutment body 206.

[0126] The column 204 is disposed within the cylindrical base 202, specifically at the bottom of the cylindrical base 202. The column 204 is rotatable and can rotate. The elastic element 203 can be a spring, which sleeves the column 204. During the insertion process of the connector 101, the elastic element 203 is compressed, and the connector 101 moves towards the elastic element 203. At this time, the column 204 partially enters the connector 101. Therefore, the connector 101 has a hollow structure to accommodate the column 204. However, the side of the connector 101 used for the column 204 to enter also compresses the elastic element 203. Therefore, the diameter of the opening on this side can be smaller than the inner diameter of the cylindrical base 202 itself. The opening is used for the column 204 to enter, while the solid portion at the edge of the opening abuts against the elastic element 203.

[0127] A guide plate 205 is provided on the outer wall of the column 204. The guide plate 205 has two surfaces, is connected to the surface of the column 204, and extends spirally along the surface of the column 204. An abutment 206 is provided at the lower end of the insertion seat 101. The abutment 206 can be cylindrical or horizontally positioned. The abutment 206 has an arc-shaped surface, which allows it to slide against the surface of the guide plate 205. Specifically, the abutment 206 can abut against either the lower or upper surface of the guide plate 205. The upper surface of the guide plate 205 faces the insertion seat 101, and the lower surface faces the bottom of the cylinder seat 202. When the insertion seat 101... When the elastic element 203 moves due to the impact, the abutment 206 moves downward and contacts and squeezes the upper surface of the guide plate 205, causing the guide plate 205 and the fixedly connected column 204 to rotate, and the elastic element 203 is compressed; when the collision of the plug seat 101 is released, the elastic element 203 releases its elastic force and pushes the plug seat 101 upward, the abutment 206 moves upward and squeezes the lower surface of the guide plate 205, causing the guide plate 205 and the column 204 to rotate.

[0128] In other embodiments, two abutting bodies 206 can be provided, one for abutting the upper surface of the guide plate 205 when the plug 101 moves down, and the other for abutting the lower surface when the plug 101 moves up. In this way, whether the plug 101 moves up or down, it can abut the guide plate 205 respectively, thereby causing the column 204 to rotate.

[0129] In other embodiments, two guide plates 205 can be provided. When the plug-in seat 101 moves down, one abutment 206 abuts against the upper surface of one guide plate 205; when the plug-in seat 101 moves up, the other abutment 206 abuts against the lower surface of the other guide plate 205. In both cases, the plug-in seat 101 can be moved up or down and the column 204 can be driven to rotate by contacting the guide plates 205.

[0130] Of course, in other embodiments, multiple abutment bodies 206 can be provided, while only one guide plate 205 is provided. The multiple abutment bodies 206 are arranged in the same direction as the extension direction of the guide plate 205. When the plug seat 101 moves downward, the multiple abutment bodies 206 simultaneously abut against different positions on the upper surface of the guide plate 205. When the plug seat 101 moves upward, the multiple abutment bodies 206 simultaneously abut against different positions on the lower surface of the guide plate 205. Alternatively, there can be multiple guide plates 205. Some abutment bodies 206 are used to abut against the upper surface of one or more guide plates 205, and some abutment bodies 206 are used to abut against the lower surface of one or more guide plates 205. The abutment bodies 206 abutting the upper surface are used to rotate the column 204 when the plug seat 101 moves downward, and the abutment bodies 206 abutting the lower surface are used to drive the column 204 to rotate when the plug seat 101 moves upward.

[0131] It should be noted that when there are multiple abutment bodies 206 and guide plates 205, there will be no interference during the downward and upward movement, thus affecting the movement.

[0132] The effect of this embodiment is that when the connector 101 moves, the abutment 206 and the guide plate 205 maintain multi-point contact, making the movement of the connector 101 more stable.

[0133] In some cases, the side of the abutment 206 facing the surface of the column 204 can maintain sliding contact with the surface of the column 204, and the surface of the column 204 can slide relative to the side of the abutment 206 to achieve rotation. This also helps to improve the stability of the movement of the connector 101.

[0134] In some embodiments, the surface of the abutment 206 that contacts the guide plate 205 is a cylindrical or spherical surface. The cylindrical or spherical surface allows for good sliding contact with the surface of the guide plate 205, reducing frictional resistance. The abutment 206 itself can be cylindrical or spherical.

[0135] In some embodiments, the abutment 206 and the outer wall of the column 204 are clearance-fitted.

[0136] The side of the abutment 206 facing the surface of the column 204 can maintain a gap with the surface of the column 204, eliminating frictional interference between the abutment 206 and the surface of the column 204, reducing sliding resistance, and also facilitating the movement of the plug seat 101.

[0137] In some embodiments, such as Figure 7 and Figure 8There are at least two abutting bodies 206 and at least one guide plate 205. At least one abutting body 206 is used to slide contact the surface of any one guide plate 205 facing the side of the plug seat 101, and at least one abutting body 206 is used to slide contact the surface of any one guide plate 205 facing the bottom of the cylinder seat 202.

[0138] Specifically, this embodiment ensures that a contact force is formed between the abutment body 206 and the guide plate 205 during the upward or downward movement of the connector 101. Furthermore, there can be multiple abutment bodies 206; that is, multiple abutment bodies 206 can simultaneously abut against the upper surfaces of the same or different guide plates 205, or multiple abutment bodies 206 can simultaneously abut against the lower surfaces of the same or different guide plates 205. The upper surface is the surface of the guide plate 205 facing the connector 101, and the lower surface is the surface of the guide plate 205 facing the bottom of the cylinder seat 202. This provides multiple contact forces, resulting in better stability of the connector 101 during movement. It should be noted that the abutment body 206 synchronously drives the guide plate 205; when not driven, it does not generate opposing resistance forces with the guide plate 205, avoiding interference that hinders the driving process.

[0139] In some embodiments, at least two abutments 206 are respectively used to slide against the surfaces of different guide pieces 205 facing the plug seat 101; and / or, at least two abutments 206 are respectively used to slide against the surfaces of different guide pieces 205 facing the bottom of the cylinder seat 202.

[0140] Specifically, the effect of this embodiment is to distribute the extrusion force as much as possible. During the upward and / or downward movement of the plug-in seat 101, there are at least two abutting bodies 206 that extrude different guide plates 205 respectively, that is, there are at least two distributed extrusion forces, which ensures the stability of the plug-in seat 101 during the movement process.

[0141] This application also provides a crash test system, including the crash test apparatus provided in any of the above embodiments.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A collision testing device, characterized in that, include: Collision unit, a device used for collision testing; The collision part is slidably inserted into the support part; An elastic element is provided on the support portion, the elastic element is located between the collision portion and the support portion, and the elastic element extends and retracts in the direction in which the collision portion slides relative to the support portion; as well as An adjustment mechanism is provided for adjusting the orientation of the support portion; the adjustment mechanism includes a first adjustment mechanism for adjusting the angle between the support portion and the horizontal plane, so as to adjust the angle between the direction of the sliding of the collision portion relative to the support portion and the horizontal plane.

2. The collision testing apparatus as described in claim 1, characterized in that, The first adjustment mechanism includes: A support base, wherein a shaft is provided on the support base, and the support portion is rotatably connected to the shaft with the axis of rotation being a first axis; and A drive mechanism is provided on the support base. The drive mechanism is used to drive the support part to rotate around the axis and can be positioned at any position on the rotation path.

3. The collision testing apparatus as described in claim 2, characterized in that, The drive mechanism includes: The sleeve is provided with internal threads and is rotatably mounted on the support, with the axis of rotation being the second axis. A screw, wherein the screw is threaded into the sleeve and has an exposed section, the length direction of the screw coinciding with the direction of the second axis; and A slide block is slidably connected to the support portion. The sliding trajectory of the slide block on the support portion is perpendicular to the first axis direction. The exposed section of the screw is rotatably connected to the slide block, and the axis of rotation is a third axis. The third axis is parallel to the first axis, and the second axis is perpendicular to the third axis.

4. The collision testing apparatus as described in claim 2 or 3, characterized in that, The adjustment mechanism further includes a second adjustment mechanism, which is used to adjust the position of the support in a first direction, wherein the angle between the first direction and the moving direction of the device to be tested for collision is 80-100 degrees.

5. The collision testing apparatus as described in claim 4, characterized in that, The second adjustment mechanism includes: Adjusting seat, the adjusting seat being fixedly connected to the support seat, the adjusting seat being provided with a threaded hole; and An adjusting rod is provided with an external thread that is adapted to the threaded hole. The adjusting rod passes through the threaded hole. The adjusting rod rotates to move the adjusting seat and drive the support seat to move along a first direction. The adjusting rod has at least two sections with opposite external thread helical directions along its length so that the adjusting seats respectively passing through the two sections move closer or further away synchronously. The collision testing device also includes a fixed base, and the adjusting base, the adjusting rod, and the supporting base are all disposed on the fixed base.

6. The collision testing apparatus according to any one of claims 1-3, characterized in that, The support portion includes: Support plate; and A cylindrical base is provided on the support plate, and the elastic element is provided inside the cylindrical base. The collision part is inserted into the cylindrical base. The collision part includes: The connector is slidably inserted into the cylindrical base and abuts against the elastic element; A collision seat, fixedly disposed at the exposed end of the plug-in socket, wherein the collision seat is provided with a receiving groove; and The collider is detachably installed in the receiving slot and is used to collide with the device under test.

7. The collision testing apparatus as described in claim 6, characterized in that, The two ends of the receiving groove pass through the two opposite side walls of the collision seat. The collision body is plate-shaped and is connected to the receiving groove by bolts. The collision body is inclined and forms an angle with the horizontal plane.

8. The collision testing apparatus as described in claim 6, characterized in that, The cylindrical base is further provided with a rotatable column. The elastic element is sleeved on the column. A guide plate extending around the axis of the column in a spiral shape is provided on the surface of the column. The plug-in seat is a hollow structure that can accommodate the column. An abutment is provided at the plug-in end of the plug-in seat. When the plug-in seat moves relative to the cylindrical base, the abutment slides in contact with the guide plate and drives the column to rotate.

9. The collision testing apparatus as described in claim 8, characterized in that, There are at least two abutting bodies and at least one guide plate. At least one abutting body is used to slide in contact with the surface of any one of the guide plates facing the plug seat, and at least one abutting body is used to slide in contact with the surface of any one of the guide plates facing the bottom of the cylinder seat.

10. The collision testing apparatus as described in claim 9, characterized in that, At least two of the abutting bodies are respectively used to slide in contact with the surfaces of different guide pieces facing the plug seat; and / or, at least two of the abutting bodies are respectively used to slide in contact with the surfaces of different guide pieces facing the bottom of the cylinder seat.

11. A collision testing system, characterized in that, Includes the collision testing apparatus according to any one of claims 1-10.

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