A multi-angle impact fixture for car seat headrests

Abstract

This utility model relates to the field of automotive seat testing technology and discloses a multi-angle collision fixture for an automotive seat headrest, including a base plate, a seat body, and a top frame. A mounting frame is fixedly installed on the base plate, and a slide rail is fixedly installed at the end of the mounting frame away from the base plate. A transmission component is fixedly installed at the end of the mounting frame near the base plate. A rotating shaft is rotatably installed at the end of the top frame away from the base plate, and a collision component is fixedly installed at the end of the rotating shaft away from the top frame. The collision component includes a mounting seat with a slot at one end, through which a bracket is inserted and installed. This multi-angle collision fixture for an automotive seat headrest, with two collision heads positioned directly above the seat body at a 90° angle, can simulate frontal and side collisions respectively, or achieve multi-angle testing by adjusting the angle through the rotating shaft, improving the versatility of testing and further enhancing its practicality.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat testing technology, specifically to a multi-angle collision fixture for automotive seat headrests. Background Technology

[0002] In the automotive safety performance evaluation system, the collision protection performance of the seat headrest is a key indicator to ensure the neck safety of drivers and passengers. With the rapid development of the automotive industry and the continuous improvement of consumers' safety awareness, in order to further improve the safety performance of automobiles, it is often necessary to test the protective effect of the headrest under different collision angles and impact forces, and collision fixtures are often used.

[0003] Chinese Utility Model Patent Publication No. CN219348500U discloses a car seat headrest strength testing device. The specification of this device states that through the cooperation of a horizontal component, a vertical drive component, and an abutment component, the device can be adjusted in a wide range of positions and angles to meet the testing needs of car seat headrests of different specifications, offering high flexibility. Furthermore, the device is simple to operate and has a straightforward structure. However, this car seat headrest strength testing device does not design multiple impact heads at different angles and positions, which may lead to poor versatility in the use of the overall tooling during testing and significant overall limitations, thus hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a multi-angle collision fixture for automotive seat headrests. It can effectively solve the problem that the existing technology does not design multiple collision heads with different angles and positions, which easily leads to poor versatility in the use of the overall fixture during testing and has great overall limitations, thus making it inconvenient to promote its use.

[0005] The technical solution adopted by this utility model is: a multi-angle collision fixture for an automobile seat headrest, including a base plate, a seat body and a top frame. An installation frame is fixedly installed on the base plate. A slide rail is fixedly installed on the end of the installation frame away from the base plate. A transmission component is fixedly installed on the end of the installation frame close to the base plate. A rotating shaft is rotatably installed on the end of the top frame away from the base plate. A collision component is fixedly installed on the end of the rotating shaft away from the top frame.

[0006] The collision assembly includes a mounting base, one end of which has a slot. A bracket is inserted into the mounting base through the slot. A test collision head one is fixedly mounted on the end of the bracket away from the mounting base. A test collision head two is threadedly connected to the end of the mounting base away from the test collision head one.

[0007] Preferably, the transmission assembly includes a fixed base, a lead screw rotatably mounted on the inner edge of the fixed base, a guide rod fixedly mounted on the inner edge of the fixed base, a connecting block threadedly connected to the outer edge of the lead screw, a connecting block slidably connected to the guide rod, the connecting block abutting against the seat body, and a motor fixedly mounted on one end of the lead screw.

[0008] With the above technical solution, when the lead screw of the transmission component rotates, it drives the threaded connecting block to slide along the guide rod, thereby pushing the seat body to move on the slide rail and slide groove. The front and rear positions of the seat body can be flexibly adjusted according to the test requirements to adapt to test scenarios with different collision angles and improve the versatility of the tooling.

[0009] Preferably, a slide rail is fixedly installed at the end of the mounting frame away from the base plate, and a slide groove is provided along the inner edge of the mounting frame. The slide rail and slide groove are slidably connected to the seat body.

[0010] With the above technical solution, the bottom of the seat body slides with the slide rail, and the two sides engage with the slide groove. When the transmission component pushes the seat, the slide rail bears the weight of the seat and guides its linear movement. The slide groove restricts the left and right displacement of the seat, preventing the seat from tilting and shaking during movement. This reduces the displacement caused by uneven force when the seat moves, ensuring reliability during crash tests.

[0011] Preferably, the mounting base has a threaded hole at one end near the second test impact head, and a threaded rod is threadedly connected to the mounting base through the threaded hole, and the threaded rod is fixedly installed with the second test impact head.

[0012] Through the above technical solution, the test collision head two is connected to the threaded hole of the mounting base through the threaded rod. Its extension length can be adjusted by rotation, or different specifications of collision heads can be directly disassembled and replaced. Furthermore, when conducting top testing, the test collision head two can be used to conduct a collision test on the seat body.

[0013] Preferably, an mounting plate is fixedly installed along the inner edge of the top frame, a cylinder is fixedly installed on the mounting plate, and a connecting seat is fixedly installed on the collision assembly, the connecting seat being connected to the output end of the cylinder.

[0014] Through the above technical solution, the cylinder output end drives the collision component to rotate around the shaft through the connecting seat, which facilitates the angle adjustment, thereby making it easy to adapt to the headrest impact at different angles, avoiding errors in manual operation, and the cylinder driving force is stable, allowing for multiple tests, thus avoiding displacement and other issues after multiple tests.

[0015] Preferably, the card holder has an "L" shaped cross-section, the card holder and the test collision head are an integral structure, the test frame is fixedly installed on the base plate, and the test frame and the top frame are fixedly installed.

[0016] The above technical solution enables quick loading and unloading through the "L"-shaped structure of the card holder, and also allows it to withstand the impact reaction force through side contact. Furthermore, the card holder and the test impact head are an integral structure, which facilitates quick assembly of the test impact head. The connection between the two is strong and can withstand a large impact force.

[0017] Preferably, the first test impact head and the second test impact head are located directly above the seat body, and the angle between the first test impact head and the second test impact head is 90°.

[0018] The above technical solution, with two collision heads positioned directly above the seat body at a 90° angle, can simulate frontal and side collisions respectively, or achieve multi-angle testing by adjusting the angle through the pivot, thus improving the versatility of the test and further enhancing its practicality.

[0019] Compared with the prior art, this utility model provides a multi-angle collision fixture for automotive seat headrests, which has the following beneficial effects:

[0020] 1. This multi-angle collision fixture for car seat headrests, with two collision heads positioned directly above the seat body at a 90° angle, can simulate frontal and side collisions respectively, or achieve multi-angle testing by adjusting the angle through a rotating shaft, thus improving the versatility of testing and further enhancing its practicality.

[0021] 2. This multi-angle collision fixture for car seat headrests, when the lead screw of the transmission component rotates, drives the threaded connecting block to slide along the guide rod, thereby pushing the seat body to move on the slide rail and slide groove. The front and rear positions of the seat body can be flexibly adjusted according to the test requirements to adapt to test scenarios with different collision angles, thus improving the versatility of the fixture. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the mounting frame and slide rail mounting structure of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the transmission component of this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the test frame and top frame of this utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure of the top frame and mounting plate of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the collision component of this utility model;

[0028] Figure 7 This is a schematic diagram of the disassembled structure of the collision component of this utility model.

[0029] The components include: 1. Base plate; 2. Mounting frame; 3. Slide rail; 4. Slide groove; 5. Seat body; 6. Transmission assembly; 601. Fixed seat; 602. Lead screw; 603. Guide rod; 604. Connecting block; 7. Test frame; 8. Top frame; 9. Mounting plate; 10. Cylinder; 11. Rotating shaft; 12. Collision assembly; 1201. Mounting seat; 1202. Slot; 1203. Holder; 1204. Test collision head one; 1205. Threaded hole; 1206. Threaded rod; 1207. Test collision head two; 13. Connecting seat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-7 As shown, the present invention provides a multi-angle collision fixture for a car seat headrest, including a base plate 1, a seat body 5 and a top frame 8. A mounting frame 2 is fixedly installed on the base plate 1. A slide rail 3 is fixedly installed at the end of the mounting frame 2 away from the base plate 1. A transmission component 6 is fixedly installed at the end of the mounting frame 2 close to the base plate 1. A rotating shaft 11 is rotatably installed at the end of the top frame 8 away from the base plate 1. A collision component 12 is fixedly installed at the end of the rotating shaft 11 away from the top frame 8.

[0032] The collision assembly 12 includes a mounting base 1201. One end of the mounting base 1201 has a slot 1202. A bracket 1203 is inserted into the mounting base 1201 through the slot 1202. A test collision head 1204 is fixedly installed at the end of the bracket 1203 away from the mounting base 1201. A second test collision head 1207 is threadedly connected to the end of the mounting base 1201 away from the first test collision head 1204.

[0033] Specifically, the transmission assembly 6 includes a fixed base 601, a lead screw 602 rotatably mounted on the inner edge of the fixed base 601, a guide rod 603 fixedly mounted on the inner edge of the fixed base 601, a connecting block 604 threadedly connected to the outer edge of the lead screw 602, and a connecting block 604 slidably connected to the guide rod 603. The connecting block 604 abuts against the seat body 5. A motor is fixedly mounted on one end of the lead screw 602. The advantage is that when the lead screw 602 of the transmission assembly 6 rotates, it drives the threaded connecting block 604 to slide along the guide rod 603, thereby pushing the seat body 5 to move on the slide rail 3 and the slide groove 4. The front and rear positions of the seat body 5 can be flexibly adjusted according to the test requirements to adapt to test scenarios with different collision angles and improve the versatility of the tooling.

[0034] Specifically, a slide rail 3 is fixedly installed at the end of the mounting frame 2 away from the base plate 1, and a slide groove 4 is provided at the inner edge of the mounting frame 2. The slide rail 3 and the slide groove 4 are slidably connected to the seat body 5. The advantage is that, through the sliding cooperation between the bottom of the seat body 5 and the slide rail 3, and the engagement between the two sides and the slide groove 4, when the transmission component 6 pushes the seat, the slide rail 3 bears the weight of the seat and guides its linear movement, and the slide groove 4 restricts the left and right displacement of the seat, avoiding tilting and shaking of the seat during movement. This can reduce the displacement caused by uneven force when the seat moves, and ensure the seat's stability during the crash test.

[0035] Specifically, the mounting base 1201 has a threaded hole 1205 at one end near the second test collision head 1207. The mounting base 1201 is threadedly connected to a threaded rod 1206 through the threaded hole 1205. The threaded rod 1206 is fixedly installed with the second test collision head 1207. The advantage is that by connecting the second test collision head 1207 to the threaded hole 1205 of the mounting base 1201 through the threaded rod 1206, its extension length can be adjusted by rotation, or different specifications of collision heads can be directly disassembled and replaced. Furthermore, when conducting top testing, the seat body 5 can be tested for collision through the second test collision head 1207.

[0036] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0037] Specifically, a mounting plate 9 is fixedly installed along the inner edge of the top frame 8, and a cylinder 10 is fixedly installed on the mounting plate 9. A connecting seat 13 is fixedly installed on the collision component 12, and the connecting seat 13 is connected to the output end of the cylinder 10. The advantage is that the output end of the cylinder 10 drives the collision component 12 to rotate around the rotating shaft 11 through the connecting seat 13, which facilitates the angle adjustment and makes it easier to adapt to the headrest impact at different angles, avoiding errors in manual operation. In addition, the driving force of the cylinder 10 is stable and can be tested multiple times, avoiding displacement and other situations that may occur after multiple tests.

[0038] Specifically, the card holder 1203 has an "L" shaped cross-section. The card holder 1203 and the test collision head 1204 are an integral structure. The test frame 7 is fixedly installed on the base plate 1. The test frame 7 and the top frame 8 are fixedly installed. The advantage is that the "L" shaped structure of the card holder 1203 enables quick loading and unloading, and the side fit can withstand the collision reaction force. In addition, the card holder 1203 and the test collision head 1204 are an integral structure, which facilitates the quick assembly of the test collision head 1204. The connection between the two has high strength and can withstand a large collision force.

[0039] Specifically, test collision head 1204 and test collision head 2 1207 are located directly above the seat body 5, with an angle of 90° between them. The advantage is that by positioning the two collision heads directly above the seat body 5 at a 90° angle, frontal and side collisions can be simulated respectively, or multi-angle testing can be achieved by adjusting the angle through the pivot 11, which improves the versatility of the test and further enhances its practicality.

[0040] Working principle: During use, when the lead screw 602 of the transmission component 6 rotates, it drives the threaded connecting block 604 to slide along the guide rod 603, thereby pushing the seat body 5 to move on the slide rail 3 and the slide groove 4. The front and rear positions of the seat body 5 can be flexibly adjusted according to the test requirements to adapt to test scenarios with different collision angles, improving the versatility of the tooling. The bottom of the seat body 5 slides with the slide rail 3, and the two sides engage with the slide groove 4. When the transmission component 6 pushes the seat, the slide rail 3 bears the weight of the seat and guides its linear movement, while the slide groove 4 restricts the left and right displacement of the seat, preventing the seat from tilting and shaking during movement. This reduces displacement caused by uneven force during seat movement, ensuring the seat's stability during the collision test. The second test collision head 1207 is connected to the threaded hole 1205 of the mounting base 1201 through the threaded rod 1206. Its extension length can be adjusted by rotation, or different specifications of collision heads can be directly disassembled and replaced. During top testing, the seat body 5 can be subjected to a collision test via the second test collision head 1207. The output end of the cylinder 10 drives the collision component 12 to rotate around the pivot 11 via the connecting seat 13, facilitating angle adjustment and adapting to headrest impacts at different angles. This avoids errors caused by manual operation, and the cylinder 10 has stable driving force, allowing for multiple tests without displacement after repeated testing. The "L"-shaped structure of the bracket 1203 enables quick loading and unloading, and the side contact helps to withstand the collision reaction force. The bracket 1203 and the first test collision head 1204 are an integrated structure, facilitating quick assembly of the first test collision head 1204. The connection between the two is strong and can withstand large collision forces. With the two collision heads located directly above the seat body 5 at a 90° angle, frontal and side collisions can be simulated respectively, or multi-angle testing can be achieved by adjusting the angle via the pivot 11, increasing the versatility of the test and further enhancing its practicality.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle collision fixture for an automobile seat headrest, comprising a base plate (1), a seat body (5), and a top frame (8), wherein a mounting frame (2) is fixedly installed on the base plate (1), characterized in that: The mounting frame (2) is fixedly mounted with a slide rail (3) at one end away from the base plate (1), and a transmission component (6) is fixedly mounted at one end of the mounting frame (2) close to the base plate (1). The top frame (8) is rotatably mounted with a rotating shaft (11) at one end away from the base plate (1), and a collision component (12) is fixedly mounted at one end of the rotating shaft (11) away from the top frame (8). The collision assembly (12) includes a mounting base (1201), one end of which is provided with a slot (1202). A bracket (1203) is inserted into the mounting base (1201) through the slot (1202). A test collision head one (1204) is fixedly installed at the end of the bracket (1203) away from the mounting base (1201). A test collision head two (1207) is threadedly connected to the end of the mounting base (1201) away from the test collision head one (1204).

2. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: The transmission assembly (6) includes a fixed seat (601), a lead screw (602) is rotatably mounted on the inner edge of the fixed seat (601), a guide rod (603) is fixedly mounted on the inner edge of the fixed seat (601), a connecting block (604) is threadedly connected to the outer edge of the lead screw (602), the guide rod (603) is slidably connected to the connecting block (604), and the connecting block (604) abuts against the seat body (5).

3. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: The mounting frame (2) is fixedly mounted with a slide rail (3) at one end away from the base plate (1), and a slide groove (4) is provided at the inner edge of the mounting frame (2). The slide rail (3) and the slide groove (4) are slidably connected to the seat body (5).

4. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: The mounting base (1201) has a threaded hole (1205) at one end near the test collision head (1207). The mounting base (1201) is threadedly connected to a threaded rod (1206) through the threaded hole (1205). The threaded rod (1206) and the test collision head (1207) are fixedly installed.

5. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: An installation plate (9) is fixedly installed on the inner edge of the top frame (8), and a cylinder (10) is fixedly installed on the installation plate (9). A connecting seat (13) is fixedly installed on the collision assembly (12), and the connecting seat (13) is connected to the output end of the cylinder (10).

6. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: The card holder (1203) has an "L" shaped cross section. The card holder (1203) and the test collision head (1204) are an integral structure. The test frame (7) is fixedly installed on the base plate (1). The test frame (7) and the top frame (8) are fixedly installed.

7. The multi-angle collision fixture for an automotive seat headrest according to claim 1, characterized in that: The test impact head one (1204) and the test impact head two (1207) are located directly above the seat body (5), and the angle between the test impact head one (1204) and the test impact head two (1207) is 90°.

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