Anti-falling automobile crash test door locking test fixture
By designing an automotive crash test door lock fixture with adjustable angle and distance components, the problem of cumbersome installation of traditional fixtures is solved, enabling rapid adaptation to various vehicle models and test scenarios for accurate testing, thus improving the accuracy and safety of the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-10-13
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional test fixtures lack flexibility and adjustability, resulting in a cumbersome and time-consuming installation process that affects the accuracy and reliability of experimental results.
A test fixture for locking doors in automotive crash tests was designed, comprising an angle adjustment component and a distance adjustment component. Through structures such as a slider, a fixed ring, a connecting flange, a fixed column, a moving column, a support rod, and a U-shaped ring, the fixture can be flexibly installed and precisely positioned.
The fixture has been improved in terms of ease of installation and flexibility, enabling it to be quickly adapted to various vehicle models and testing scenarios, ensuring testing accuracy and safety, and saving time and costs.
Smart Images
Figure CN224499962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile collision testing, and in particular to an anti-detachment automobile collision test door locking fixture. Background Technology
[0002] In automotive crash safety testing, door lock testing fixtures are crucial auxiliary equipment. Their core function is to securely mount and fix the door latch and hinge assembly under test, accurately simulating the stress state of a real vehicle's door lock system at the moment of a collision. Through this test, researchers can effectively evaluate the door lock's ability to retain its position under extreme impact loads, the likelihood of accidental unlocking, and its overall structural integrity, thus providing critical data support for the optimization and verification of automotive passive safety performance.
[0003] However, traditional test fixtures often have significant limitations in their design. Their structure is typically fixed, and the installation position and connection angle lack sufficient adjustability. This makes the fixture adaptation process cumbersome and time-consuming when dealing with different vehicle models, installation points, or specific test conditions. Technicians often need to use additional shims or modifications to complete the installation, which not only reduces testing efficiency but may also introduce unnecessary testing errors due to installation deviations, ultimately affecting the accuracy and reliability of the experimental results. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing test fixtures in terms of lack of flexibility and adjustability, and to propose an anti-detachment test fixture for car door locking in collision experiments.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0006] A car crash test door locking fixture for preventing detachment includes a base rigidly connected to the ground, a slide rail fixedly mounted on the upper surface of the base, a slider mounted on the slide rail, and a mounting plate fixedly mounted on the top of the slider; two sets of angle adjustment components assembled on the upper surface of the mounting plate; a distance adjustment component mounted at the end of the angle adjustment components; and a connecting component mounted at the end of the distance adjustment components for connecting the mounting seat of the door hinge and the mounting seat of the door latch on the car body door frame.
[0007] Preferably, the two angle adjustment components include a fixing ring and a connecting flange fixedly mounted on the upper surface of the mounting plate, wherein a connecting ring is fixedly mounted on the lower surface of the connecting flange and the connecting ring is embedded in the fixing ring.
[0008] Preferably, the distance adjustment assembly includes a fixed column, a bottom flange fixedly provided at the lower end of the fixed column, the bottom flange and the connecting flange being fastened together by bolts evenly distributed circumferentially, a movable column being slidably provided inside the fixed column, a plurality of fixed grooves being evenly provided on the fixed column, and two first high-strength bolts being inserted into the bottom of the movable column, the first high-strength bolts being used to penetrate the fixed grooves and the movable column.
[0009] Preferably, the connecting assembly includes a support rod installed at the end of the movable column, a U-shaped ring rotatably disposed in the annular groove in the middle of the support rod, and a second high-strength bolt inserted laterally at the opening of the U-shaped ring.
[0010] Preferably, a lead screw is fixedly provided at the lower end of the support rod, and an internal thread groove is provided at the end of the movable column, with the lead screw threadedly installed in the internal thread groove.
[0011] Preferably, two limiting rods are fixedly installed on the upper surface of the base, and limiting blocks are fixedly provided on both sides of the mounting plate, with the limiting blocks slidably connected to the limiting rods.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, by setting up angle adjustment components and distance adjustment components, the angle and distance of the test fixture can be flexibly adjusted according to actual needs, greatly improving the convenience and flexibility of installation. It can quickly adapt to various car models and different testing scenarios, effectively saving installation time and costs. At the same time, this flexible adjustment also ensures the accuracy of the test, providing more reliable data for the safety design and improvement of automotive door locking systems, and enhancing safety during car collisions. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the angle adjustment component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the distance adjustment component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection component structure of this utility model.
[0019] The components in the diagram are numbered as follows: 1. Base; 11. Slide rail; 12. Slider; 13. Mounting plate; 2. Angle adjustment assembly; 21. Fixing ring; 22. Connecting flange; 23. Connecting ring; 3. Distance adjustment assembly; 31. Fixing column; 32. Moving column; 33. Fixing groove; 34. First high-strength bolt; 35. Bottom flange; 4. Connecting assembly; 41. Support rod; 42. U-ring; 43. Second high-strength bolt; 5. Lead screw; 51. Internal thread groove; 6. Limiting rod; 61. Limiting block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.
[0023] Example: This example provides a door locking test fixture for preventing detachment in automotive crash tests. See [link / reference]. Figure 1-4 Specifically, it includes a base 1 rigidly connected to the ground, a slide rail 11 fixedly mounted on the upper surface of the base 1, a slider 12 mounted on the slide rail 11, and a mounting plate 13 fixedly mounted on the top of the slider 12; two sets of angle adjustment components 2 assembled on the upper surface of the mounting plate 13; a distance adjustment component 3 installed at the end of the angle adjustment component 2; and a connecting component 4 installed at the end of the distance adjustment component 3 for connecting the mounting seat of the door hinge and the mounting seat of the door latch on the door frame.
[0024] In this embodiment, the base 1 provides a stable foundation, ensuring that all impact forces are effectively transferred to the ground. The two connecting components 4 are connected to the mounting seats of the door hinges and the door latches on the vehicle body frame, respectively. The traction system pulls the vehicle, causing it to accelerate forward along the horizontal direction (X-axis). At this time, the vehicle, driven by the connecting components 4, and the distance adjustment components 3, angle adjustment components 2, and mounting plate 13, move synchronously along the slide rail 11 via the slider 12. The mounting plate 13 of the clamp and the vehicle connected to it slide freely horizontally relative to the fixed base 1, ensuring that the clamp does not resist the horizontal movement of the vehicle. After the vehicle collision, the test data is recorded by observing the damage to the mounting seats of the door hinges and the door latches on the vehicle body frame.
[0025] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the two angle adjustment components 2 include a fixing ring 21 and a connecting flange 22 fixedly installed on the upper surface of the mounting plate 13. A connecting ring 23 is fixedly installed on the lower surface of the connecting flange 22, and the connecting ring 23 is embedded in the fixing ring 21.
[0026] In this embodiment, the connecting ring 23 rotates within the fixed ring 21, causing the connecting flange 22 to rotate, thereby changing the angle of the distance adjustment component 3 connected to the connecting flange 22 to meet different installation requirements.
[0027] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the distance adjustment assembly 3 includes a fixed column 31, a bottom flange 35 fixedly provided at the lower end of the fixed column 31, and the bottom flange 35 and the connecting flange 22 are fastened together by bolts evenly distributed in the circumferential direction. A movable column 32 is slidably provided inside the fixed column 31. A plurality of fixed grooves 33 are evenly provided on the fixed column 31. Two first high-strength bolts 34 are inserted into the bottom of the movable column 32. The first high-strength bolts 34 are used to penetrate the fixed grooves 33 and the movable column 32.
[0028] In this embodiment, the movable column 32 slides within the fixed column 31. When it moves to the desired position, two first high-strength bolts 34 are inserted into the corresponding fixed grooves 33 and the movable column 32 and tightened, thereby fixing the position of the movable column 32 and realizing the adjustment of the distance.
[0029] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the connecting assembly 4 includes a support rod 41 installed at the end of the movable column 32. A U-shaped ring 42 is rotatably provided in the annular groove in the middle of the support rod 41, and a second high-strength bolt 43 is inserted laterally at the opening of the U-shaped ring 42.
[0030] In this embodiment, the mounting base of the door hinge and the mounting base of the door latch on the door frame are placed in the U-shaped ring 42, and then the second high-strength bolt 43 is inserted and tightened to achieve a fixed connection of the mounting base; the U-shaped ring 42 can rotate in the annular groove of the support rod 41, which further increases the flexibility of the mounting base angle adjustment.
[0031] In the specific implementation process, such as Figure 3 and Figure 4 As shown, a lead screw 5 is fixedly installed at the lower end of the support rod 41, and an internal threaded groove 51 is opened at the end of the moving column 32. The lead screw 5 is threadedly installed in the internal threaded groove 51. Through the threaded connection between the lead screw 5 and the internal threaded groove 51, the support rod 41 is firmly installed at the end of the moving column 32. At the same time, this connection method is also convenient for disassembly and installation.
[0032] In the specific implementation process, such as Figure 1 As shown, two limiting rods 6 are fixedly installed on the upper surface of the base 1, and limiting blocks 61 are fixedly provided on both sides of the mounting plate 13. The limiting blocks 61 are slidably connected to the limiting rods 6. The limiting blocks 61 and the limiting rods 6 provide stability for the movement of the mounting plate 13.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A door lock test fixture for preventing detachment in automotive collision experiments, characterized in that, include: A base (1) is rigidly connected to the ground. A slide rail (11) is fixedly provided on the upper surface of the base (1). A slider (12) is provided on the slide rail (11). An mounting plate (13) is fixedly provided on the top of the slider (12). Two sets of angle adjustment components (2) are assembled on the upper surface of the mounting plate (13); Distance adjustment component (3) is installed at the end of the angle adjustment component (2); A connecting component (4) is installed at the end of the distance adjustment component (3) for connecting the mounting bracket of the door hinge and the mounting bracket of the door latch on the body door frame.
2. The anti-detachment vehicle door locking test fixture for automotive collision experiments according to claim 1, characterized in that: The two angle adjustment components (2) include a fixing ring (21) fixedly mounted on the upper surface of the mounting plate (13) and a connecting flange (22), wherein a connecting ring (23) is fixedly mounted on the lower surface of the connecting flange (22), and the connecting ring (23) is embedded in the fixing ring (21).
3. The anti-detachment vehicle collision test door locking fixture according to claim 2, characterized in that: The distance adjustment assembly (3) includes a fixed column (31), a bottom flange (35) is fixedly provided at the lower end of the fixed column (31), the bottom flange (35) and the connecting flange (22) are fastened together by bolts evenly distributed in the circumferential direction, a movable column (32) is slidably provided in the fixed column (31), a plurality of fixed grooves (33) are evenly provided on the fixed column (31), and two first high-strength bolts (34) are inserted at the bottom of the movable column (32), the first high-strength bolts (34) are used to penetrate the fixed grooves (33) and the movable column (32).
4. The anti-detachment vehicle collision test door locking fixture according to claim 3, characterized in that: The connecting assembly (4) includes a support rod (41) installed at the end of the movable column (32), a U-shaped ring (42) is rotatably provided in the annular groove in the middle of the support rod (41), and a second high-strength bolt (43) is inserted laterally at the opening of the U-shaped ring (42).
5. The anti-detachment vehicle collision test door locking fixture according to claim 4, characterized in that: The lower end of the support rod (41) is fixedly provided with a lead screw (5), and the end of the movable column (32) is provided with an internal thread groove (51). The lead screw (5) is threadedly installed in the internal thread groove (51).
6. The anti-detachment vehicle collision test door locking fixture according to claim 1, characterized in that: Two limiting rods (6) are fixedly installed on the upper surface of the base (1), and limiting blocks (61) are fixedly provided on both sides of the mounting plate (13). The limiting blocks (61) are slidably connected to the limiting rods (6).