A low haze pet window film for automotive impact testing apparatus
By designing upper and lower clamping plates and a cylinder-controlled impact column, the problem of existing equipment being unable to accurately detect the force on the short side of the window film is solved, achieving uniform force measurement and convenient device cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BOKE NEW THIN FILM TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing automotive window film impact testing equipment cannot accurately detect the force exerted on the window film from the short side, resulting in large measurement errors.
An impact testing device for low-haze PET window film of automobiles was designed. The window film is held by upper and lower clamps, and the impact test is carried out by a cylinder-controlled impact column. Combined with transparent glass observation and drawer collection of debris, the device ensures uniform force and accurate measurement.
It achieves uniform force measurement of the window film, resulting in more accurate measurement data. Furthermore, the device is easy to clean, preventing injury caused by misoperation.
Smart Images
Figure CN224471513U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts technology, specifically, it relates to an impact resistance testing device for automotive low-haze PET window film. Background Technology
[0002] Window film is a multi-layered, functional polyester composite film material. When applied to the surface of architectural glass, it can improve the performance and strength of the glass, and has functions such as increasing the flexural strength and impact resistance of the glass, preventing personal injury accidents caused by glass breakage and detachment, protection, and theft prevention.
[0003] Chinese patent CN215414825U discloses a high-precision automotive window film impact testing device. Its structure includes a base, support legs, support columns, support seats, push cylinders, a stamping force measuring head, push blocks, guide rails, and an adjustment mechanism. The above-mentioned prior art fixes the window film with two pressure blocks. Due to the limited size of the pressure blocks, it can only test strip-shaped window films. Therefore, it cannot detect the force on the window film from the short side direction, and the actual measurement results will have errors and are not accurate enough.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an impact resistance testing device for automotive low-haze PET window film, thus solving the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0007] A test device for impact resistance of low-haze PET window film for automobiles includes: a base, characterized in that a lower clamping plate is provided above the base, a test port is provided at the center of the lower clamping plate, an upper clamping plate is provided on the top of the lower clamping plate, the upper clamping plate and the lower clamping plate are connected by a fixing component, a support column is provided on one side of the base, a top plate is provided on the top of the support column, a cylinder is provided on the top of the top plate, a test cylinder is provided at the bottom of the top plate corresponding to the cylinder, an impact column is provided inside the test cylinder, a screw is provided at the center of the fixing component, an adjusting nut is rotatably installed on the top of the screw, a washer is provided at the bottom of the adjusting nut, and a support ring is provided at the bottom of the screw.
[0008] Optionally, the detection cylinder has side windows on both sides, and the striking column has side ears fixedly connected to both sides.
[0009] Optionally, the detection cylinder is provided with locking rings on both sides of the side window, and a safety pin is provided on the top of the locking ring.
[0010] Optionally, a keyway is provided at the bottom of the screw, the support ring is embedded in the keyway, and a fixing buckle is provided at the bottom of the support ring.
[0011] Optionally, a rubber ring is fitted onto the surface of the screw.
[0012] Optionally, a transparent glass panel is provided around the detection port.
[0013] Optionally, a drawer is installed inside the base.
[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:
[0015] 1. This automotive low-haze PET window film impact resistance testing equipment uses upper and lower clamping plates to hold the window film, fixing components to lock it, and a cylinder-controlled impact column device to strike the window film to conduct an impact resistance test. Compared with the clamping of the pressure block, the overall clamping position is more uniform, the force is more even, and the measurement data is more accurate.
[0016] 2. The impact resistance testing equipment for low-haze PET window film of automobiles uses a drawer set in the base to receive the broken window film after the test. The window film fragments can be removed by pulling out the drawer, making the device easier to clean.
[0017] 3. The impact resistance testing equipment for automotive low-haze PET window film has a safety pin on the impact column. During the test, the safety pin needs to be removed to allow the impact column to move, thus preventing accidental activation of the device and causing injury.
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 for Figure 1 Enlarged view of point A shown;
[0022] Figure 3 This is a cross-sectional view of the present invention;
[0023] Figure 4 This is an exploded view of the fixing component of this utility model.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Base; 101. Drawer; 2. Upper clamping plate; 201. Transparent glass; 202. Detection port; 3. Lower clamping plate; 4. Fixing assembly; 401. Screw; 402. Adjusting nut; 403. Washer; 404. Rubber ring; 405. Support ring; 406. Fixing buckle; 5. Support column; 6. Top plate; 7. Cylinder; 8. Detection cylinder; 801. Side window; 802. Locking ring; 803. Safety pin; 9. Striking post; 901. Side lug.
[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings.
[0028] Please see Figure 1-4 As shown, this embodiment provides an impact resistance testing device for automotive low-haze PET window film, including: a base 1.
[0029] like Figure 1-4 As shown, in this embodiment, a lower clamping plate 3 is provided above the base 1, and a detection port 202 is provided at the center of the lower clamping plate 3. An upper clamping plate 2 is provided on the top of the lower clamping plate 3. The upper clamping plate 2 and the lower clamping plate 3 are connected by a fixing component 4. A support column 5 is provided on one side of the base 1, and a top plate 6 is provided on the top of the support column 5. A cylinder 7 is provided on the top of the top plate 6, and a detection cylinder 8 is provided at the bottom of the top plate 6 corresponding to the cylinder 7. A striking column 9 is provided inside the detection cylinder 8. A screw 401 is provided at the center of the fixing component 4. An adjusting nut 402 is rotatably installed on the top of the screw 401. A washer 403 is provided at the bottom of the adjusting nut 402, and a support ring 405 is provided at the bottom of the screw 401. The upper clamping plate 2 and the lower clamping plate 3 are connected by four fixing components 4. The window film is placed between the upper clamping plate 2 and the lower clamping plate 3. The adjusting nut 402 on the fixing component 4 is rotated, and the screw 401 is raised through thread engagement, thereby raising the support ring 405 supporting the lower clamping plate 3. This reduces the gap between the upper clamping plate 2 and the lower clamping plate 3 to clamp the window film and fix it. The top cylinder 7 and the top plate 6 are supported by the support column 5. An inflation channel is opened between the cylinder 7 and the detection cylinder 8 inside the top plate 6. By pressurizing the air channel, the striking column 9 is launched from the detection cylinder 8. The front end passes through the detection port 202 in the center of the upper clamping plate 2 and hits the window film to perform testing. The washer 403 on the screw 401 prevents the adjusting nut 402 and the surface of the upper clamping plate 2 from slipping, which would affect the fixing effect of the fixing component 4.
[0030] like Figure 1 , 2As shown, the detection cylinder 8 in this embodiment has side windows 801 on both sides, and the striking column 9 has side ears 901 fixedly connected to both sides; wherein, the two side ears 901 of the striking column 9 extend from the side windows 801 and are stuck on the side windows 801, which restricts the movement range of the striking column 9 and prevents the striking column 9 from popping out of the detection cylinder 8.
[0031] like Figure 1 , 2 As shown, in this embodiment, the detection cylinder 8 is provided with locking rings 802 on both sides of the side window 801, and a safety pin 803 is provided on the top of the locking rings 802; wherein, the safety pin 803 is located between the two locking rings 802, supporting the side ear 901 on one side of the striking column 9. During the test, the pressure of the air passage is increased by the cylinder 7, and then the safety pin 803 is moved to make the striking column 9 lose support. The striking column 9 is pressed down by air pressure, and the front end hits the window film to complete the impact test.
[0032] like Figure 4 As shown, the screw 401 in this embodiment has a keyway at its bottom, and the support ring 405 is embedded in the keyway. The bottom of the support ring 405 is provided with a fixing buckle 406. The fixing component 4 is pulled upward by the operator rotating the adjusting nut 402 on the screw 401, and the two threads engage. The bottom support ring 405 is connected to the screw 401 through the keyway. The friction between the support ring 405 and the lower clamping plate 3 prevents the screw 401 from rotating. The support ring 405 itself is fixed by the fixing buckle 406.
[0033] like Figure 4 As shown, in this embodiment, a rubber ring 404 is fitted onto the surface of the screw 401; wherein, the rubber ring 404 is embedded in the upper clamping plate 2 and fitted onto the threaded area of the screw 401, which can position the screw 401 and prevent the thread from contacting the through hole of the upper clamping plate 2 during rotation and causing damage.
[0034] like Figure 1 , 3 As shown, in this embodiment, a transparent glass 201 is provided around the detection port 202; wherein, the transparent glass 201 is installed at the center of the upper clamping plate 2, and the center of the transparent glass 201 is the detection port 202. The detection port 202 area is visualized through the transparent glass 201, and the operator can observe the position of the window film when inserting it, so as to better adjust the position to make the data detection more accurate.
[0035] like Figure 1 , 3As shown, the base 1 in this embodiment is equipped with a drawer 101 inside; the drawer 101 is inserted into the base 1 from one side. When the window film is impacted after testing, it will generate debris, which passes through the detection port 202 and the lower clamping plate 3, and finally falls into the drawer 101 inside the base 1. The drawer 101 can be pulled out from the base 1 by a handle on one side, making it easier to clean up the debris.
[0036] Working principle: The window film is placed between the upper clamping plate 2 and the lower clamping plate 3, with the center position aligned with the detection port 202. The adjusting nut 402 on the fixing assembly 4 is rotated, and the screw 401 is raised through thread engagement. The bottom support ring 405 lifts the lower clamping plate 3, reducing the gap between the upper clamping plate 2 and the lower clamping plate 3 to clamp the window film and fix it. The striking column 9 is moved upward and pushes the safety lock 803, so that the safety lock 803 passes horizontally on the lock ring 802 to fix the side ear 901. The cylinder 7 continuously pressurizes to the measurement threshold, and the safety lock 803 is pulled out. The striking column 9 is released from restraint and is rapidly pushed downward by air pressure. The front end passes through the detection port 202 and hits the window film, thus completing the test.
[0037] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. An impact resistance testing device for automotive low-haze PET window film, comprising: The base (1) is characterized in that a lower clamping plate (3) is provided above the base (1), a detection port (202) is provided at the center of the lower clamping plate (3), an upper clamping plate (2) is provided at the top of the lower clamping plate (3), the upper clamping plate (2) and the lower clamping plate (3) are connected by a fixing component (4), a support column (5) is provided on one side of the base (1), a top plate (6) is provided at the top of the support column (5), a cylinder (7) is provided at the top of the top plate (6), a detection cylinder (8) is provided at the bottom of the top plate (6) corresponding to the cylinder (7), a striking column (9) is provided inside the detection cylinder (8), a screw (401) is provided at the center of the fixing component (4), an adjusting nut (402) is rotatably installed at the top of the screw (401), a washer (403) is provided at the bottom of the adjusting nut (402), and a support ring (405) is provided at the bottom of the screw (401).
2. The impact resistance testing equipment for automotive low-haze PET window film according to claim 1, characterized in that, The detection cylinder (8) has side windows (801) on both sides, and the striking column (9) has side ears (901) fixedly connected to both sides.
3. The impact resistance testing equipment for automotive low-haze PET window film according to claim 2, characterized in that, The detection cylinder (8) is provided with locking rings (802) on both sides of the side window (801), and a safety pin (803) is provided on the top of the locking ring (802).
4. The impact resistance testing equipment for automotive low-haze PET window film according to claim 1, characterized in that, The screw (401) has a keyway at its bottom, and the support ring (405) is embedded in the keyway. The support ring (405) has a fixing buckle (406) at its bottom.
5. The impact resistance testing equipment for automotive low-haze PET window film according to claim 1, characterized in that, A rubber ring (404) is fitted onto the surface of the screw (401).
6. The impact resistance testing equipment for automotive low-haze PET window film according to claim 1, characterized in that, The detection port (202) is surrounded by transparent glass (201).
7. The impact resistance testing equipment for automotive low-haze PET window film according to claim 1, characterized in that, The base (1) has a drawer (101) installed inside.