Automobile window film impact resistance test equipment

Abstract

The utility model discloses an automobile window film impact resistance test device which comprises a bearing base and bearing supports fixedly installed on the left side and the right side of the rear portion of the top face of the bearing base, and positioning top plates are fixedly arranged at the top ends of the bearing supports. A stretching mechanism is arranged on the top surface of the bearing base, the stretching mechanism comprises a guide platform, and stretching transverse plates are arranged on the left side and the right side of the top surface of the guide platform; the stretching mechanism comprises an extension mechanism, the extension mechanism comprises abutting supports, the inner ends of the abutting supports are distributed in an inclined structure, and the symmetrically-arranged abutting supports are distributed in an inverted-L-shaped structure. According to the anti-impact test equipment for the automobile window film, the window film is positioned through the clamping base above the guide platform and the pressing and covering sliding plate, and longitudinally extends in the transverse extension process, so that the window film can simulate the state of being attached to an automobile window to the greatest extent in the anti-impact test, and the anti-impact performance of the window film is conveniently tested.

Description

Technical Field

[0001] This utility model relates to the field of automotive window film testing technology, specifically to an automotive window film impact testing device. Background Technology

[0002] Automotive window film is a functional film widely used on the inside of car windows. Its main functions include heat insulation, sun protection, shatter resistance, and privacy protection. Additionally, when applied to the inside of the car's glass, it enhances impact resistance and improves vehicle safety. These films require impact testing to determine their impact resistance performance.

[0003] The utility model with publication number CN215414825U discloses a high-precision automotive window film impact testing device. By setting up a receiving structure, and then using gears to mesh and rotate the locking teeth to apply force, the locking teeth push the sliding plate to move, and the slider moves synchronously, achieving the advantages of convenient adjustment and force application of the push block, and improving the ease of use.

[0004] However, the impact testing equipment for automotive window films mentioned above still has the following problems in actual use: Although the window film is extended through the symmetrically distributed support structure, it is difficult to guarantee the flatness and tensile integrity of the window film during use. Although the left and right sides can achieve the lateral extension of the window film, the lack of positioning in the longitudinal direction affects the impact performance test data.

[0005] Therefore, we propose an impact testing device for automotive window films to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an impact testing device for automotive window film. This device addresses the problem that existing window film extension is achieved through symmetrically distributed support structures, but such support mechanisms cannot guarantee the flatness and tensile integrity of the window film during use. Although moving the left and right sides can achieve lateral extension of the window film, the lack of positioning in the longitudinal direction affects the impact performance test data.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automotive window film impact testing device, comprising a support base and support brackets fixedly installed on the left and right sides behind the top surface of the support base, and a positioning top plate fixedly provided at the top of the support brackets;

[0008] It also includes: a tensioning mechanism is provided on the top surface of the bearing base, and the tensioning mechanism includes a guide platform, and tensioning cross plates are provided on both the left and right sides of the top surface of the guide platform.

[0009] The stretching mechanism includes an extension mechanism, and the extension mechanism includes a contact bracket. The inner ends of the contact brackets are arranged in an inclined structure, and the symmetrically arranged contact brackets are arranged in an inverted "L" shape.

[0010] Preferably, an impactor is fixedly installed at the center of the front end of the positioning top plate, and an impact protrusion is slidably installed at the bottom end of the impactor. The impact protrusion is tested by impacting the automotive window film positioned by the tensioning mechanism downward.

[0011] Preferably, the stretching mechanism includes a guide threaded rod, which is rotatably mounted on the left and right sides inside the guide platform via bearings. The guide threaded rods on the left and right sides are threaded through the bottom end of the stretching plate, and the rotation of the guide threaded rods causes the stretching plate to move in the opposite direction.

[0012] Preferably, the stretching mechanism includes a clamping base, which is slidably disposed on the front and rear sides of the top face of the stretching plate, and the symmetrically disposed clamping bases are connected to the stretching plate by a return spring.

[0013] Preferably, the stretching mechanism includes a pressing slide plate, and the left and right sides of the outer end of the pressing slide plate are rotatably provided with lifting threaded rods through bearings. The top ends of the lifting threaded rods on the left and right sides are meshed with each other through a pulley assembly, and the bottom ends of the symmetrically arranged lifting threaded rods are threadedly connected to the inside of the clamping base.

[0014] Preferably, the extension mechanism includes a resisting slider, and the outer end of the resisting slider is fixedly connected to the inner side of the bottom surface of the front and rear clamping bases, and the inner ends of the symmetrically arranged resisting sliders are distributed in an inclined structure.

[0015] Preferably, the inner end of the abutment bracket included in the extension mechanism faces the side close to the clamping base, and the symmetrically arranged abutment brackets drive the abutment slider to move outward through the clamping base, and the contact surface between the abutment bracket and the abutment slider is pressed in an inclined manner, thereby causing the symmetrically arranged clamping base to move forward and backward to achieve multi-directional traction for the automotive window film.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This automotive window film impact testing equipment uses a clamping base and a pressing slide plate above the guide platform to position the window film, and extends it longitudinally during the lateral extension process, so that the window film can simulate the state of being applied to the car window to the greatest extent in the impact test, so as to test the impact performance of the window film. The specific details are as follows:

[0017] 1. The window film is placed above the clamping base. The lifting threaded rod, which is engaged by the pulley assembly, is threadedly connected to the clamping base, causing the upper pressing slide plate to descend and press against the top surface of the window film, preventing the window film from shifting and falling off during subsequent stretching.

[0018] The guide threaded rods on the left and right sides inside the guide platform rotate, causing the guide threaded rods to simultaneously drive the tensioning horizontal plate and the clamping base connected to the outer wall outward. At the same time, the clamping base simultaneously drives the window film fixed and pressed on the top surface to extend, so that the horizontal window film is in an extended state without excessive stretching.

[0019] 2. The inner end of the contact slider contacts the inner end of the contact bracket, and the inclined structure of the contact surface compresses the contact slider, thereby driving the clamping base and the window film positioned by the pressing slide plate above it to move synchronously in the front and back sides, thereby extending the window film in the longitudinal direction, ensuring that the window film is in a stretched state without elastic force, and simulating the situation of the window film on the car window to the greatest extent.

[0020] An impactor, fixed at the center of the front end of the positioning top plate, has an impact protrusion that slides downwards at its bottom to impact and strike the stretched window film in order to test the film's impact resistance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the tension cross plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention after the stretching cross plate has been moved;

[0024] Figure 4 This is a three-dimensional structural diagram of the clamping base of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the pressure plate of this utility model after it has descended;

[0026] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0027] In the diagram: 1. Support base; 2. Support bracket; 3. Positioning top plate; 4. Guide platform; 5. Tensioning cross plate; 6. Abutment bracket; 7. Impactor; 8. Impact protrusion; 9. Guide threaded rod; 10. Clamping base; 11. Return spring; 12. Pressing slide plate; 13. Lifting threaded rod; 14. Pulley assembly; 15. Abutment slider. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-6 The present invention provides the following technical solution:

[0030] Example 1: In order to solve the problems existing in the impact test of existing automotive window films, this example provides an automotive window film impact test equipment, including a support base 1 and a support bracket 2 fixedly installed on the left and right sides of the rear of the top surface of the support base 1, and a positioning top plate 3 is fixedly provided at the top of the support bracket 2; a tensioning mechanism is provided on the top surface of the support base 1, and the tensioning mechanism includes a guide platform 4, and tensioning cross plates 5 are provided on the left and right sides of the top surface of the guide platform 4.

[0031] The stretching mechanism includes guide threaded rods 9, which are rotatably mounted on the left and right sides inside the guide platform 4 via bearings. The guide threaded rods 9 on both sides are threaded through the bottom end of the stretching cross plate 5, and the rotation of the guide threaded rods 9 causes the stretching cross plate 5 to move in the opposite direction. The stretching mechanism includes clamping bases 10, which are slidably mounted on the front and rear sides of the top of the stretching cross plate 5. The symmetrically arranged clamping bases 10 and the stretching cross plate 5 are connected to each other by return springs 11. The stretching mechanism includes a pressing slide plate 12, and lifting threaded rods 13 are rotatably mounted on the left and right sides inside the outer end of the pressing slide plate 12 via bearings. The top ends of the lifting threaded rods 13 on both sides are meshed with each other by a pulley assembly 14, and the bottom ends of the symmetrically arranged lifting threaded rods 13 are threaded to the inside of the clamping base 10.

[0032] like Figure 2 , Figure 4 As shown, when it is necessary to conduct an impact test on the window film, first cut a window film of appropriate length and place it above the distributed clamping base 10. Then, manually rotate the lifting threaded rod 13 that is engaged with the pulley assembly 14. After the lifting threaded rod 13 is threadedly connected to the clamping base 10, it drives the upper pressing slide plate 12 to descend and press against the top surface of the window film to prevent the window film from displacing and falling off during subsequent stretching.

[0033] Furthermore, the servo motor built into the guide platform 4 installed above the support base 1 drives the guide thread rods 9 on the left and right sides to rotate, so that the guide thread rods 9 drive the tensioning horizontal plate 5 and the clamping base 10 connected to the outer wall thread to move outward in a synchronized manner. At the same time, the clamping base 10 drives the window film fixed and pressed on the top surface to extend in a synchronized manner, so that the horizontal window film is in an extended state without excessive stretching.

[0034] Example 2: To address the problems existing in the impact testing of current automotive window films, this example employs the following technical solution: the stretching mechanism includes an extension mechanism, and the extension mechanism includes an abutment bracket 6. The inner ends of the abutment bracket 6 are arranged in an inclined structure, and the symmetrically arranged abutment brackets 6 are arranged in an inverted "L" shape. An impactor 7 is fixedly installed at the center of the front end of the positioning top plate 3, and an impact protrusion 8 is slidably installed at the bottom end of the impactor 7. The impact protrusion 8 is tested by impacting the automotive window film positioned by the stretching mechanism downwards.

[0035] The extension mechanism includes a resisting slider 15, the outer end of which is fixedly connected to the inner side of the bottom surface of the front and rear clamping bases 10. The inner ends of the symmetrically arranged resisting sliders 15 are distributed in an inclined structure. The inner end of the resisting bracket 6 included in the extension mechanism faces the side close to the clamping base 10. The symmetrically arranged resisting brackets 6 drive the resisting sliders 15 to move outward through the clamping bases 10. The contact surfaces of the resisting brackets 6 and the resisting sliders 15 are pressed in an inclined manner, thereby causing the symmetrically arranged clamping bases 10 to move forward and backward to achieve multi-directional stretching of the automotive window film.

[0036] like Figure 1 , Figures 5-6 As shown, during the process of the guide platform 4 moving the stretching horizontal plates 5 on the left and right sides and the clamping base 10 outward, the inner end of the abutting slider 15 fixedly set on the inner side of the bottom surface of the clamping base 10 contacts the inner end of the abutting bracket 6. The inclined structure of the contact surface compresses the abutting slider 15, thereby driving the clamping base 10 and the window film positioned above it by the pressing slide plate 12 to move synchronously in the front and back sides. This extends the window film in the longitudinal direction, ensuring that the window film is in a stretched state without elastic force, simulating the situation on the car window to the greatest extent.

[0037] Furthermore, an impactor 7, which is fixedly installed at the center of the front end of the positioning top plate 3, has an impact protrusion 8 slidably installed at its bottom end to impact and strike the stretched window film in order to test the impact resistance of the window film.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An impact testing device for automotive window film, comprising a support base (1) and a support bracket (2) fixedly installed on the left and right sides behind the top surface of the support base (1), and a positioning top plate (3) is fixedly provided on the top of the support bracket (2). Its features are, Also includes: The top surface of the bearing base (1) is provided with a tensioning mechanism, and the tensioning mechanism includes a guide platform (4), and tensioning cross plates (5) are provided on both the left and right sides of the top surface of the guide platform (4). The stretching mechanism includes an extension mechanism, and the extension mechanism includes a contact bracket (6). The inner end of the contact bracket (6) is arranged in an inclined structure, and the symmetrically arranged contact brackets (6) are arranged in an inverted "L" shape.

2. The automotive window film impact testing equipment according to claim 1, characterized in that: An impactor (7) is fixedly installed at the center of the front end of the positioning top plate (3), and an impact protrusion (8) is slidably installed at the bottom end of the impactor (7). The impact protrusion (8) is tested by impacting the car window film positioned by the downward contact stretching mechanism.

3. The automotive window film impact testing equipment according to claim 2, characterized in that: The stretching mechanism includes a guide thread rod (9), which is rotatably mounted on the left and right sides inside the guide platform (4) via bearings. The guide thread rods (9) on the left and right sides are threaded through the bottom of the stretching plate (5), and the rotation of the guide thread rod (9) causes the stretching plate (5) to move in the opposite direction.

4. The automotive window film impact testing equipment according to claim 3, characterized in that: The stretching mechanism includes a clamping base (10), which is slidably disposed on the front and rear sides of the top face of the stretching plate (5), and the symmetrically disposed clamping base (10) and the stretching plate (5) are connected to each other by a return spring (11).

5. The automotive window film impact testing equipment according to claim 4, characterized in that: The stretching mechanism includes a pressing plate (12), and the left and right sides of the outer end of the pressing plate (12) are provided with lifting thread rods (13) through bearings. The top ends of the lifting thread rods (13) on the left and right sides are meshed with each other through a pulley assembly (14), and the bottom ends of the symmetrically arranged lifting thread rods (13) are threaded to the inside of the clamping base (10).

6. The automotive window film impact testing equipment according to claim 5, characterized in that: The extension mechanism includes a sliding block (15), and the outer end of the sliding block (15) is fixedly connected to the inner side of the bottom surface of the front and rear clamping bases (10), and the inner ends of the symmetrically arranged sliding blocks (15) are distributed in an inclined structure.

7. The automotive window film impact testing equipment according to claim 6, characterized in that: The inner end of the contact bracket (6) included in the extension mechanism faces the side close to the clamping base (10), and the symmetrically arranged contact bracket (6) drives the contact slider (15) to move outward through the clamping base (10). The contact surfaces of the contact bracket (6) and the contact slider (15) are pressed in an inclined manner, thereby causing the symmetrically arranged clamping base (10) to move forward and backward to achieve multi-directional traction for the automotive window film.

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