A side collision test device

Abstract

The application relates to the technical field of automobile testing and provides a side collision test device, a side collision test device which comprises an acceleration trolley and a sub-trolley slidably connected to the acceleration trolley, further comprises: a seat tool connected to the sub-trolley; a supporting frame connected to the acceleration trolley; a mounting plate connected to one side of the supporting frame close to the sub-trolley, wherein a plurality of mounting holes arranged in a matrix in the horizontal direction and the vertical direction are arranged on the mounting plate; three safety belt fixing members are arranged and are detachably connected to one side of the mounting plate close to the seat tool through the mounting holes to fix a guide ring, a winder and a waist pre-tightener of a safety belt respectively. In this way, the safety belt fixing member is designed into three parts, the safety belt fixing member is connected to the mounting holes at different positions, various situations during side collision can be simulated, the test cost is low, and the test period is short.

Description

Technical Field

[0001] This application relates to the field of automotive testing technology, specifically to a side-impact testing device. Background Technology

[0002] In the field of automotive safety testing, side impact testing is a crucial means of evaluating a vehicle's ability to protect occupants in side impact accidents. To reduce occupant injuries in side impacts, real-vehicle crash tests are typically used to optimize the side restraint system, which is costly and time-consuming. Moreover, setting the parameters of side airbags in real-vehicle tests requires continuous optimization of airbag parameters (such as airbag shape, folding method, vent size, and strap length) based on various side impact results from real vehicles. This necessitates considering multiple impact scenarios, resulting in numerous tests, high testing costs, and long testing cycles. Utility Model Content

[0003] In view of this, this application provides a side impact test device with low testing cost and short test cycle.

[0004] To achieve the above objectives, this application provides the following technical solution: A side-impact test apparatus includes an acceleration trolley and a secondary trolley slidably connected to the acceleration trolley, and further includes: The seat fixture is connected to the auxiliary trolley; A support frame is connected to the acceleration trolley; A mounting plate is connected to the support frame on the side near the auxiliary trolley, and the mounting plate is provided with a plurality of mounting holes arranged in a matrix along the horizontal and vertical directions. The seat belt fasteners are provided in three parts, and are detachably connected to the side of the mounting plate near the seat fixture through the mounting holes, respectively, to fix the seat belt guide ring, retractor and lumbar pretensioner.

[0005] This setup, after the acceleration trolley is impacted, causes the auxiliary trolley to move relative to it, bringing the seat fixture closer to the mounting plate. This simulates the intrusion of the door relative to the dummy (seat) in a real vehicle collision. The test results (such as the force and damage to the dummy and seat) can then be used to optimize the side restraint system and side airbag parameters. Designing the seatbelt fasteners as three separate parts allows for independent adjustment of each part, accommodating seatbelt anchor points on various vehicle models. Furthermore, using three universal seatbelt fasteners reduces the need for machining the B-pillar sheet metal, improving testing efficiency and reducing costs. Moreover, by connecting the seatbelt fasteners to mounting holes at different locations, their position can be adjusted horizontally and vertically. During simulated vehicle collision tests, adjusting the position of the seatbelt fasteners relative to the mounting plate allows for more precise simulation of various side-impact scenarios, resulting in low testing costs and short testing cycles.

[0006] In one optional embodiment, the seat belt fastener has a first strip-shaped hole, which is connected to the mounting hole by a bolt. Since the mounting hole can be positioned at multiple different locations within the first strip-shaped hole, infinite adjustment of both the mounting hole and the first strip-shaped hole can be achieved by displacing the mounting hole along its extension direction. This, in turn, enables infinite adjustment of the seat belt fastener and the mounting plate, increasing the versatility of the seat belt fastener's connection positions and better adapting to various collision scenarios.

[0007] In one optional embodiment, at least two of the first strip holes on the same seat belt fastener are arranged in parallel, and the distance between two adjacent first strip holes is an integer multiple of the distance between two adjacent mounting holes. During installation, the first strip holes can extend horizontally, and multiple first strip holes can provide support at multiple positions in the vertical direction, thereby improving the installation strength of the seat belt fastener.

[0008] In one alternative embodiment, the length of the first strip-shaped hole is greater than the distance between two adjacent mounting holes. This allows at least two mounting holes to be connected within the same first strip-shaped hole, further enhancing the connection strength between the seatbelt fastener and the mounting holes.

[0009] In one alternative implementation, it further includes: The adapter plate has three parts to fix the guide ring, retractor and waist pretensioner of the safety belt respectively. The adapter plate is provided with a second strip hole. The seat belt fastener has multiple fixing holes arranged in a matrix along the horizontal and vertical directions. The fixing holes are connected to the second strip hole by bolts, and the extension directions of the first strip hole and the second strip hole are perpendicular.

[0010] In this way, the seat belt fastener and the adapter plate can be fixedly connected through the connection between the second strip hole and the fixing hole. Since the fixing hole can be positioned at multiple different locations within the second strip hole, the fixing hole and the second strip hole can be infinitely adjusted by moving the fixing hole along the extension direction of the second strip hole. This, in turn, enables infinitely adjustable seat belt fasteners and adapter plates, increasing the versatility of the adapter plate's connection position and better adapting to various collision scenarios.

[0011] In one optional embodiment, the seat belt fastener includes a first fixing plate and a second fixing plate arranged in parallel and spaced apart, and a supporting rib plate connected between the first fixing plate and the second fixing plate; the first fastener is provided with the first strip hole, and the second fixing plate is provided with the fixing hole.

[0012] In one optional embodiment, the distance between two adjacent mounting holes is greater than the distance between two adjacent fixing holes. When the seatbelt fastener is connected to the mounting plate, the seatbelt position can be initially positioned. When the adapter plate and the seatbelt fastener are connected, the seatbelt position can be repositioned. The accuracy of the initial positioning is less than the accuracy of the secondary positioning. This allows the seatbelt position to be gradually controlled to an accurate and reasonable position required for a collision, improving the accuracy of the seatbelt connection.

[0013] In one optional embodiment, the spacing between two adjacent mounting holes is set to 40-60 mm, and the spacing between two adjacent fixing holes is set to 20-30 mm.

[0014] In one alternative embodiment, a door fastener is also included, which is detachably connected to the mounting plate near the seat fixture via the mounting holes. Both the seatbelt fastener and the door fastener are connected to the mounting plate via mounting holes, eliminating the need for separate machining of holes, saving costs and improving processing efficiency.

[0015] In one optional embodiment, the acceleration trolley is equipped with an energy-absorbing fixture, and the side of the energy-absorbing fixture near the auxiliary trolley has multiple energy-absorbing tubes for contacting the auxiliary trolley. After the acceleration trolley experiences acceleration upon collision, the acceleration trolley and the auxiliary trolley move relative to each other. The auxiliary trolley moves towards the energy-absorbing fixture, crushing and deforming the energy-absorbing tubes to obtain test parameters. Since the multiple energy-absorbing tubes are detachable, different collision scenarios can be simulated by adjusting the number of energy-absorbing tubes.

[0016] In one optional embodiment, the energy-absorbing tube is configured as a wired metal tube. During a collision, the crushing deformation of the energy-absorbing tube is more uniform, which is beneficial for calculating the collision results and makes the test results more accurate and reliable. Furthermore, the material cost of the wired metal tube is lower, which can reduce the cost of the collision test.

[0017] In one optional embodiment, the energy-absorbing fixture has a detachably connected first clamp and a second clamp, with a plurality of blind holes formed between the first clamp and the second clamp to accommodate the plurality of energy-absorbing tubes one-to-one. During connection, the energy-absorbing tube is arranged between the first clamp and the second clamp, which are connected by bolts, clamping the energy-absorbing tube within the blind holes formed between the first clamp and the second clamp. This allows for both clamping at one end of the energy-absorbing tube and tightening around its outer periphery, improving the connection strength and positioning accuracy of the energy-absorbing tube. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 A perspective view of a side impact test apparatus shown for some embodiments of this application.

[0020] Figure 2 The diagram shows the connection structure of the mounting plate for some embodiments of this application.

[0021] Figure 3 This is a cross-sectional view of the mounting plate connection shown for some embodiments of this application.

[0022] Figure 4 A perspective view of a seatbelt fastener and adapter plate shown for some embodiments of this application.

[0023] Figure 5 Assembly diagrams of energy-absorbing tooling shown for some embodiments of this application.

[0024] Figure 6 An exploded view of an energy-absorbing tooling shown for some embodiments of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Acceleration trolley; 2. Sub-trolley; 3. Seat fixture; 4. Support frame; 5. Mounting plate; 51. Mounting hole; 6. Seat belt fastener; 61. First fixing plate; 62. Second fixing plate; 63. Support rib; 64. First strip hole; 65. Fixing hole; 7. Adapter plate; 71. Second strip hole; 8. Door fastener; 81. Third strip hole; 9. Energy absorption fixture; 91. First clamp; 92. Second clamp; 93. Energy absorption tube; 94. Blind hole. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] like Figures 1-6 As shown in the figure, this application provides a side impact test device, including an acceleration trolley 1, a secondary trolley 2, a seat fixture 3, a support frame 4, a mounting plate 5, a seat belt fastener 6, and a door fastener 8. The secondary trolley 2 is connected to the acceleration trolley 1, and a guide rail is provided between the acceleration trolley 1 and the secondary trolley 2 so that the secondary trolley 2 can slide relative to the acceleration trolley 1. When the acceleration trolley 1 is subjected to a collision and generates acceleration, the secondary trolley 2 can slide relative to the acceleration trolley 1 under the action of the guide rail.

[0028] The support frame 4 is connected to the acceleration trolley 1. For example, the support frame 4 is connected to the acceleration trolley 1 via a base fixture, which reinforces the connection of the support frame 4. In a specific design, the base fixture and the slide rail can be connected as an integrated frame structure or configured as a separate frame structure. The support frame 4 and mounting plate 5 are mounted above the base fixture, and the auxiliary trolley 2 and seat fixture 3 are mounted above the slide rail. The mounting plate 5 is connected to the support frame 4 on the side closest to the auxiliary trolley 2 (i.e., the seat fixture 3). The side of the mounting plate 5 away from the support frame 4 is connected to the seat belt fastener 6 and the door fastener 8. The seat belt fastener 6 is used to install the seat belt guide ring, retractor, and lumbar pretensioner. The door fastener 8 is used to fix the interior panel of the door to simulate the shape of the door and seat belt. The seat fixture 3 is connected to the auxiliary trolley 2 and is used to install the seat and dummy to simulate the driver's driving scenario. After the acceleration trolley 1 is hit, the auxiliary trolley 2 moves relative to the acceleration trolley 1, and the seat fixture 3 and the mounting plate 5 move closer together. This can simulate the intrusion collision of the car door relative to the dummy (seat) in a real vehicle collision. Then, the side restraint system and side airbag parameters can be optimized through the test results (such as the force and damage of the dummy and the seat).

[0029] The mounting plate 5 has multiple mounting holes 51 arranged in a matrix along the horizontal and vertical directions, meaning that the spacing between two adjacent mounting holes 51 in the horizontal direction is equal, and the spacing between two adjacent mounting holes 51 in the vertical direction is equal. Three seatbelt fasteners 6 are spaced apart, each used to secure the seatbelt guide ring, retractor, and lap pretensioner. The guide ring, also known as the D-ring, is typically fixed to the height adjuster or the B-pillar of the vehicle body to ensure smooth extension and retraction of the seatbelt webbing, preventing webbing jamming or wear. The retractor is used to retract the seatbelt webbing. The lap pretensioner quickly tightens the seatbelt lap belt through a pretensioning device, reducing the gap between the occupant and the seat, and enhancing the restraint effect on the occupant. Here, the seat belt fastener 6 is designed as a three-part unit, which facilitates independent adjustment of the three parts and can be used for the installation of seat belt fastening points in various vehicle models. Moreover, the use of three universal seat belt fasteners 6 can reduce the processing of sheet metal in the B-pillar of the vehicle model, thereby improving testing efficiency and reducing testing costs.

[0030] Furthermore, the three seatbelt fasteners 6 are detachably connected to the side of the mounting plate 5 near the seat fixture 3 via mounting holes 51. By connecting the seatbelt fasteners 6 to mounting holes 51 at different positions, the position of the seatbelt fasteners 6 can be adjusted in both the horizontal and vertical directions. During simulated vehicle collision tests, by adjusting the position of the seatbelt fasteners 6 relative to the mounting plate 5, various side-impact scenarios can be simulated more accurately, resulting in low testing costs and short testing cycles. Here, the horizontal direction is parallel to the plane where the acceleration trolley 1 is located and perpendicular to the acceleration direction of the acceleration trolley 1, i.e., the horizontal direction is... Figure 3 The X direction is perpendicular to the plane containing the acceleration trolley 1 and perpendicular to the acceleration direction of the acceleration trolley 1; that is, the vertical direction is... Figure 3 in the Y direction.

[0031] In this embodiment, the seat belt fastener 6 is provided with a first strip-shaped hole 64. The first strip-shaped hole 64 and the mounting hole 51 are connected by a bolt, that is, the bolt is simultaneously inserted into the first strip-shaped hole 64 and the mounting hole 51, which can fix the seat belt fastener 6 and the mounting plate 5 together. Since the mounting hole 51 can be positioned at multiple different locations of the first strip-shaped hole 64, the mounting hole 51 and the first strip-shaped hole 64 can be infinitely adjusted by moving the mounting hole 51 along the extension direction of the first strip-shaped hole 64. This enables infinitely adjustable seat belt fastener 6 and mounting plate 5, improves the versatility of the connection position of the seat belt fastener 6, and better adapts to various collision scenarios.

[0032] It should be noted that after the seat belt fastener 6 is connected to the mounting plate 5, the extension direction of the first strip hole 64 can be vertical or horizontal, depending on the specific connection requirements. Here, it is preferable that the first strip hole 64 extends horizontally so that the seat belt fastener 6 can overcome gravity and have better support performance.

[0033] In this design, at least two first strip-shaped holes 64 are arranged in parallel on the same seat belt fastener 6, meaning the arrangement direction of the first strip-shaped holes 64 is perpendicular to their extension direction. The distance between two adjacent first strip-shaped holes 64 is an integer multiple of the distance between two adjacent mounting holes 51. During installation, the first strip-shaped holes 64 can extend horizontally, and multiple first strip-shaped holes 64 can provide support at multiple positions in the vertical direction, thereby improving the installation strength of the seat belt fastener 6.

[0034] Additionally, the length of the first strip hole 64 (e.g.) Figure 3 The dimension of the first strip hole 64 in the X direction is greater than the distance between two adjacent mounting holes 51. In this way, at least two mounting holes 51 can be connected within the same first strip hole 64, further improving the connection strength between the seat belt fastener 6 and the mounting holes 51.

[0035] In the specific design, the seat belt fastener 6 includes a first fixing plate 61, a second fixing plate 62, and a support rib 63. The first fixing plate 61 and the second fixing plate 62 are spaced apart and arranged in parallel. The support rib 63 connects the first fixing plate 61 and the second fixing plate 62, so that the seat belt fastener 6 forms an I-shape. The first fixing plate 61 is provided with a first slotted hole 64, that is, the first fixing plate 61 is connected to the mounting plate 5 through the first slotted hole 64. The second fixing plate 62 is used to fix the guide ring, retractor, or waist pretensioner of the seat belt, thereby fixing the guide ring, retractor, or waist pretensioner of the seat belt to the mounting plate 5.

[0036] In a further embodiment, an adapter plate 7 is provided on the side of the seat belt fastener 6 away from the mounting plate 5. Three adapter plates 7 are provided, each used to connect the seat belt guide ring, retractor, and lumbar pretensioner, respectively, meaning the seat belt fastener 6 and the adapter plate 7 are configured one-to-one. Furthermore, the adapter plate 7 has a second slotted hole 71, through which it connects to the seat belt fastener 6. Additionally, the seat belt fastener 6 has multiple fixing holes 65 arranged in a matrix along both the horizontal and vertical directions. When the seat belt fastener 6 is mounted on the mounting plate 5, the matrix arrangement of the fixing holes 65 on the seat belt fastener 6 is consistent with the matrix arrangement of the mounting holes 51 on the mounting plate 5. Thus, the second slotted hole 71 and the fixing holes 65 are connected by bolts, meaning the bolts simultaneously pass through and connect to both the second slotted hole 71 and the fixing holes 65, securing the seat belt fastener 6 and the adapter plate 7 together. Since the fixing hole 65 can be positioned at multiple different locations of the second strip hole 71, the fixing hole 65 can be displaced along the extension direction of the second strip hole 71, thereby achieving stepless adjustment of the fixing hole 65 and the second strip hole 71, and thus achieving stepless adjustment of the seat belt fastener 6 and the adapter plate 7, improving the diversity of connection positions of the adapter plate 7, and better adapting to various collision scenarios.

[0037] It should be noted that after the seat belt fastener 6 is connected to the adapter plate 7, the extension direction of the second strip hole 71 can be vertical or horizontal, depending on the specific connection requirements. Preferably, the second strip hole 71 extends horizontally and is perpendicular to the extension direction of the first strip hole 64. With the connection between the seat belt fastener 6 and the adapter plate 7, the guide ring, retractor, or lumbar pretensioner on the seat belt can be infinitely adjusted horizontally and vertically, allowing the seat belt to be fixed in any position to better adapt to different needs.

[0038] In the specific design, the seat belt fastener 6 includes a first fixing plate 61, a second fixing plate 62, and a supporting rib 63. The first fixing plate 61 and the second fixing plate 62 are spaced apart and arranged in parallel, and the supporting rib 63 connects the first fixing plate 61 and the second fixing plate 62. The second fixing plate 62 is provided with multiple fixing holes 65, which connect with the second strip hole 71 on the adapter plate 7, thereby forming a connection between the seat belt fastener 6 and the adapter plate 7.

[0039] The spacing between two adjacent mounting holes 51 is greater than the spacing between two adjacent fixing holes 65, meaning the density of the multiple mounting holes 51 on the mounting plate 5 is less than the density of the multiple fixing holes 65 on the second fixing plate 62. When the seatbelt fastener 6 is connected to the mounting plate 5, the seatbelt position can be initially determined. When the adapter plate 7 is connected to the seatbelt fastener 6, the seatbelt position can be repositioned. The accuracy of the initial positioning is less than the accuracy of the secondary positioning. This allows the seatbelt position to be gradually controlled to an accurate and reasonable position required for crash testing, improving the accuracy of the seatbelt connection.

[0040] Here, the spacing between two adjacent mounting holes 51 is set to 40-60 mm, preferably 50 mm, and the spacing between two adjacent fixing holes 65 is set to 20-30 mm, preferably 25 mm.

[0041] In some embodiments, the door fastener 8 is also detachably connected to the side of the mounting plate 5 near the seat fixture 3 via mounting holes 51. By connecting the door fastener 8 to mounting holes 51 at different positions, the position of the door fastener 8 can be adjusted in both the horizontal and vertical directions. Here, both the seat belt fastener 6 and the door fastener 8 are connected to the mounting plate 5 via mounting holes 51, eliminating the need for separate machining of holes, saving costs and improving processing efficiency.

[0042] The door fixing component 8 is provided with a third strip-shaped hole 81. The third strip-shaped hole 81 connects to the mounting hole 51, allowing the door fixing component 8 and the mounting plate 5 to be fixedly connected. Since the mounting hole 51 can be positioned at multiple different locations within the third strip-shaped hole 81, the mounting hole 51 and the third strip-shaped hole 81 can be infinitely adjusted by moving the mounting hole 51 along the extension direction of the third strip-shaped hole 81. This, in turn, enables infinitely adjustable door fixing component 8 and mounting plate 5, increasing the versatility of the connection position of the door fixing component 8 and better adapting to various collision scenarios. It should be noted that after the door fixing component 8 and mounting plate 5 are connected, the extension direction of the third strip-shaped hole 81 can be either vertical or horizontal, depending on the specific connection requirements.

[0043] The door fixing component 8 has multiple third strip holes 81 arranged in a matrix along the horizontal and vertical directions. This results in multiple sets of connection structures between the third strip holes 81 and the mounting holes 51, which can improve the connection strength between the door fixing component 8 and the mounting plate 5.

[0044] Additionally, the length of the third strip hole 81 (e.g.) Figure 3The dimension of the third strip hole 81 in the Y direction is an integer multiple of the distance between two adjacent mounting holes 51. In this way, two mounting holes 51 are connected to the two ends of the third strip hole 81 respectively, thereby realizing the positioning between the mounting holes 51 and the third strip hole 81 and further improving the connection strength between the door fastener 8 and the mounting holes 51.

[0045] In some embodiments, the acceleration trolley 1 is equipped with an energy-absorbing fixture 9, for example, the energy-absorbing fixture 9 is connected to the base fixture. Multiple energy-absorbing tubes 93 are detachably mounted on the side of the energy-absorbing fixture 9 near the auxiliary trolley 2, so that the energy-absorbing fixture 9 abuts against the auxiliary trolley 2 through the energy-absorbing tubes 93. After the acceleration trolley 1 experiences acceleration upon collision, the acceleration trolley 1 and the auxiliary trolley 2 move relative to each other. The auxiliary trolley 2 moves towards the energy-absorbing fixture 9, causing the energy-absorbing tubes 93 to be crushed and deformed, so as to obtain test parameters based on the energy-absorbing tubes 93. Since the multiple energy-absorbing tubes 93 are detachable, different collision scenarios can be simulated by adjusting the number of energy-absorbing tubes 93. Here, the specific number of energy-absorbing tubes 93 needs to be set according to the actual test conditions; for example, the number of energy-absorbing tubes 93 is 5-10.

[0046] The energy-absorbing tube 93 is a metal conduit made of steel with uniform density and good mechanical properties. During a collision, the crushing deformation of the energy-absorbing tube 93 is relatively uniform, which is beneficial for calculating the collision results and makes the test results more accurate and reliable. Furthermore, the metal conduit has a lower material cost, reducing the cost of collision testing.

[0047] like Figure 5-6 As shown, the energy-absorbing fixture 9 includes a first clamp 91 and a second clamp 92, which are connected. Multiple blind holes 94 are formed between the first clamp 91 and the second clamp 92. The number of blind holes 94 matches the number of energy-absorbing tubes 93, for example, 5-10. During connection, the energy-absorbing tube 93 is arranged between the first clamp 91 and the second clamp 92. The first clamp 91 and the second clamp 92 are connected by bolts, clamping the energy-absorbing tube 93 within the blind holes 94 formed between the first clamp 91 and the second clamp 92. This allows for both tightening at one end of the energy-absorbing tube 93 and tightening around its outer periphery, improving the connection strength and positional accuracy of the energy-absorbing tube 93.

[0048] It should be noted that the "parallel condition" in this application refers to one direction being parallel to another, but it is not limited to the two being absolutely parallel. For example, one direction may be nearly parallel to the other, which is defined here as an angle of less than 2 degrees. The "perpendicular condition" in this document refers to one direction being perpendicular to another, but it is not limited to the two being absolutely perpendicular. For example, one direction may be nearly perpendicular to the other, which is defined here as an angle of less than 92 degrees and greater than 88 degrees.

[0049] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0050] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0051] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0052] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0053] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0054] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A side-impact test apparatus, comprising an acceleration trolley and a secondary trolley slidably connected to the acceleration trolley, characterized in that, Also includes: The seat fixture is connected to the auxiliary trolley; A support frame is connected to the acceleration trolley; A mounting plate is connected to the support frame on the side near the auxiliary trolley, and the mounting plate is provided with a plurality of mounting holes arranged in a matrix along the horizontal and vertical directions. The seat belt fasteners are provided in three parts, and are detachably connected to the side of the mounting plate near the seat fixture through the mounting holes, respectively, to fix the seat belt guide ring, retractor and lumbar pretensioner.

2. The side impact testing device according to claim 1, characterized in that, The seat belt fastener has a first strip hole, which is connected to the mounting hole by a bolt.

3. The side impact testing apparatus according to claim 2, characterized in that, At least two of the first strip holes on the same seat belt fastener are arranged in parallel, and the distance between two adjacent first strip holes is an integer multiple of the distance between two adjacent mounting holes.

4. The side impact testing apparatus according to claim 2, characterized in that, The length of the first strip hole is greater than the distance between two adjacent mounting holes.

5. The side impact testing apparatus according to claim 2, characterized in that, Also includes: The adapter plate has three parts to fix the guide ring, retractor and waist pretensioner of the safety belt respectively. The adapter plate is provided with a second strip hole. The seat belt fastener has multiple fixing holes arranged in a matrix along the horizontal and vertical directions. The fixing holes are connected to the second strip hole by bolts, and the extension directions of the first strip hole and the second strip hole are perpendicular.

6. The side impact testing apparatus according to claim 5, characterized in that, The seat belt fastener includes a first fixing plate and a second fixing plate arranged in parallel and spaced apart, and a supporting rib plate connected between the first fixing plate and the second fixing plate; the first fixing plate is provided with the first strip hole, and the second fixing plate is provided with the fixing hole.

7. The side impact testing apparatus according to claim 5, characterized in that, The distance between two adjacent mounting holes is greater than the distance between two adjacent fixing holes.

8. The side impact testing apparatus according to claim 2, characterized in that, It also includes a door fastener, which is detachably connected to the mounting plate on the side near the seat fixture via the mounting hole.

9. The side impact testing apparatus according to claim 1, characterized in that, The acceleration trolley is equipped with an energy-absorbing fixture. The energy-absorbing fixture is detachably equipped with multiple energy-absorbing tubes on the side near the auxiliary trolley for contacting the auxiliary trolley. The energy-absorbing tubes are wire-threaded metal tubes.

10. The side impact testing apparatus according to claim 9, characterized in that, The energy-absorbing fixture has a first clamp and a second clamp that are detachably connected, and a plurality of blind holes are formed between the first clamp and the second clamp to accommodate the plurality of energy-absorbing tubes one-to-one.

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