Automobile windshield safety testing device
By combining linear motors and elastic transmission systems, multi-dimensional full-surface testing of automotive windshields has been achieved, solving the problem of insufficient simulation capabilities of existing devices, improving testing accuracy and flexibility, and enabling more accurate evaluation of windshield safety performance.
Patent Information
- Application Number
- CN202520391205.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing automotive windshield testing devices have limited functionality and cannot simulate various impact scenarios in real-world environments. Their testing accuracy and efficiency need improvement, and the hardness test simulation is limited, resulting in poor reference value for the test structure.
The design employs two sets of linear motors working in tandem to achieve precise movement of the transmission cylinder in both horizontal and vertical directions. Combined with the elastic transmission system and the height adjustment of the rotating threaded column, it simulates impacts of varying forces and allows for the replacement of hammers of different materials and shapes to conduct uniform impact tests across the entire surface.
It enables multi-dimensional, full-surface uniform testing of windshields, realistically simulating various impact scenarios during actual road driving, providing accurate safety performance assessments, and improving the flexibility and diversity of testing.
Smart Images

Figure CN223883377U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model mainly relates to the technical field of automobile safety testing equipment, specifically to a kind of automobile windshield safety testing device. BACKGROUND
[0002] Automobile windshield is important safety component of vehicle, and its quality and safety are directly related to the life safety of driver and passenger, therefore, in the automobile production process, safety testing is indispensable to windshield, at present, the windshield testing device existing in market mostly has single function, cannot simulate a variety of impact situations in real environment, and testing precision and efficiency need to be improved, therefore, a kind of automobile windshield safety testing device simulating large quantity and wide testing area is needed.
[0003] According to the utility model discloses a kind of automobile windshield hardness detection utensil provided in application No.CN202021135543.1, including device main body, the middle position of the lower end inside device main body is fixedly installed with driving motor, the middle position inside device main body is movably installed with rotating screw rod, the lower end of rotating screw rod is fixedly connected with the output end of driving motor, rotating screw rod is movably sleeved with rotating screw sleeve on the surface, the both sides of rotating screw sleeve surface are movably installed with movable rod, the upper end of device main body surface is fixedly installed with placing plate, the both sides of the upper end of placing plate are provided with sliding slot, the inside of four sliding slots is movably inserted with connecting rod, the lower end of four connecting rods is located inside device main body, and the lower end of four connecting rods is provided with mounting portion.
[0004] The above file is provided with a series of structures, so that the device has the characteristics of being easy to adjust, but the hardness test simulation quantity is less, and the test structure reference is not good. Utility model content
[0005] Therefore, the utility model aims at providing a kind of automobile windshield safety testing device to solve the technical problems in the above background art.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A kind of automobile windshield safety testing device, including fixed base, two groups of first linear motor are located at the both sides of the top of the fixed base, C-shaped mounting bracket is located at the top of two groups of the first linear motor, lifting component is located at the both sides of the C-shaped mounting bracket, second linear motor is located at one end of the lifting component, loading plate is located at the execution end of the second linear motor, transmission cylinder is located at one end of the loading plate, drive component is located at the top of the loading plate and is connected with the transmission cylinder, clamping component is located in the fixed base.
[0008] Preferably, the lifting component comprises two first threaded rods rotatably arranged on both sides of the C-shaped mounting frame, a first threaded sleeve arranged on the bottom plate at both ends of the second linear motor and sleeved on the middle part of the first threaded rod, a double-output motor arranged on the top of the C-shaped mounting frame, and two right-angle connecting shafts arranged on both sides of the double-output motor and connected to the middle shaft of the first threaded rod.
[0009] Preferably, the transmission cylinder comprises two groups of supporting plates arranged on both sides of one end of the loading plate, a threaded column rotatably arranged on the middle part of each group of supporting plates, a second threaded sleeve arranged on both ends of the transmission cylinder and sleeved on the threaded column, and a long slot arranged on one end of the transmission cylinder close to the driving component.
[0010] Preferably, the transmission cylinder further comprises two limiting rings arranged on the inside and arranged up and down, a hollow cylinder sleeved on the middle part of the limiting rings, a fixed ring arranged on the outside of the hollow cylinder, and a first spring connecting the two limiting rings and the fixed ring.
[0011] Preferably, the hollow cylinder comprises a threaded groove arranged on the bottom, and a hammer threadedly connected to the bottom of the threaded groove.
[0012] Preferably, the driving component comprises a transmission pin arranged on the top of the loading plate, a driving motor arranged on the top of the loading plate and having an execution end connected to one end of the transmission pin, an eccentric disc arranged on the inside top end of the transmission cylinder and connected to the other end of the transmission pin, a pull rod arranged in the inside of the hollow cylinder, a connecting rod connecting the pull rod and the eccentric disc, and a second spring arranged in the inside of the hollow cylinder and connected to the bottom end of the connecting rod in the middle part.
[0013] Preferably, the clamping component comprises a plurality of bidirectional threaded rods arranged longitudinally and transversely in the inside of the fixed base, a crank handle arranged on the outside of the fixed base and connected to the middle shaft of the bidirectional threaded rods, two limiting plates threadedly connected to the bidirectional threaded rods, and a plurality of movable grooves arranged on the top of the fixed base.
[0014] In summary, the technical solution mainly has the following beneficial effects:
[0015] In the embodiment, through the cooperative work of the two groups of linear motors, the precise movement of the transmission cylinder in the horizontal and vertical directions is realized, and it is ensured that the entire surface of the windshield can receive uniform and comprehensive knocking test. This multi-dimensional test method can more realistically simulate various impact situations that may be encountered in actual road driving, so as to more accurately evaluate the safety performance of the windshield.
[0016] Through the elastic effect of the spring inside the transmission cylinder and the fine adjustment function brought by adjusting the height of the threaded column, users can simulate different impact situations according to their needs. This fine impact force control not only helps to evaluate the performance of the windshield under different impact forces, but also provides valuable feedback to automobile manufacturers to optimize product design.
[0017] The impact hammer is connected to the transmission cylinder through a specific connection method. This design allows users to easily replace impact hammers of different materials and shapes to adapt to different types of testing needs. This flexibility not only improves the diversity of testing, but also enables the device to more comprehensively evaluate the safety performance of windshields under different impact conditions. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an overall structure isometric view of the present utility model;
[0019] Figure 2 It is an overall structure annotation diagram of the present utility model;
[0020] Figure 3 It is a split schematic diagram of the clamping component of the present utility model;
[0021] Figure 4 It is a side view of the overall structure of the present utility model;
[0022] Figure 5 It is a split schematic diagram of the transmission cylinder structure of the present utility model;
[0023] Figure 6 It is a side view of the transmission cylinder structure of the present utility model.
[0024] BRIEF DESCRIPTION OF DRAWINGS: 10, fixed base; 11, first linear motor; 12, C-shaped mounting bracket; 13, lifting component; 131, first threaded rod; 132, first threaded sleeve; 133, double-output motor; 134, right-angle coupling; 14, second linear motor; 15, loading plate; 16, transmission cylinder; 161, supporting plate; 162, threaded column; 163, second threaded sleeve; 164, long slot; 165, limiting ring; 166, hollow cylinder; 1661, threaded groove; 1662, impact hammer; 167, fixed ring; 168, first spring; 17, driving component; 171, transmission pin; 172, driving motor; 173, eccentric disc; 174, pull rod; 175, connecting rod; 176, second spring; 18, clamping component; 181, bidirectional threaded rod; 182, crank; 183, limiting plate; 184, movable slot. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the present utility model.
[0026] Embodiment
[0027] Please refer to the drawings Figure 1 、 2 , 3, 4, a kind of automobile windshield safety testing device, including fixed base 10, two groups of first linear motor 11 are arranged in the top of fixed base 10 both sides, C-shaped mounting bracket 12 is arranged in the top of two groups of first linear motor 11, lifting component 13 is arranged in the both sides of C-shaped mounting bracket 12, second linear motor 14 is arranged in one end of lifting component 13, loading plate 15 is arranged in the execution end of second linear motor 14, transmission cylinder 16 is arranged in one end of loading plate 15, drive component 17 is arranged in the top of loading plate 15 and is connected with transmission cylinder 16, clamping component 18 is arranged in the inside of fixed base 10;Clamping component 18 includes multiple bidirectional threaded rods 181 arranged in the inside of fixed base 10 in vertical and horizontal arrangement, rocker 182 is arranged in the outside of fixed base 10 and is connected with the central axis of bidirectional threaded rod 181, two limit plates 183 are connected on bidirectional threaded rod 181, multiple movable grooves 184 are arranged in the top of fixed base 10;Lifting component 13 includes two first threaded rods 131 rotatably arranged in the both sides of C-shaped mounting bracket 12, first threaded sleeve 132 is arranged on the chassis of two ends of second linear motor 14 and is sleeved in the middle of first threaded rod 131, double-output motor 133 is arranged in the top of C-shaped mounting bracket 12, two right-angle connecting shafts 134 are arranged in the both sides of double-output motor 133 and are connected with the central axis of first threaded rod 131.
[0028] The above, by rotating rocker 182, bidirectional threaded rod 181 can be driven to rotate, in turn drive two limit plates 183 to move in fixed base 10, and multiple clamping components 18 can be used to clamp windshield of different sizes;Start double-output motor 133, drive first threaded rod 131 to rotate by right-angle connecting shaft 134, in turn drive second linear motor 14 and loading plate 15 to move up and down by first threaded sleeve 132, until transmission cylinder 16 reaches the predetermined test height, when carrying out knocking experiment, two groups of first linear motor 11 will be synchronized to run, and the lateral position of transmission cylinder 16 is adjusted at uniform speed, while second linear motor 14 is also started, and the longitudinal position of transmission cylinder 16 is adjusted, to realize uniform knocking on the whole surface of windshield.
[0029] The transmission cylinder 16 comprises two groups of supporting plates 161 arranged on both sides of one end of the loading plate 15, a threaded column 162 rotatably arranged in the middle of each group of supporting plates 161, a second threaded sleeve 163 arranged on both ends of the transmission cylinder 16 and sleeved on the threaded column 162, and a long slot 164 arranged on the end of the transmission cylinder 16 close to the driving component 17. By rotating the threaded column 162, the height of the second threaded sleeve 163 can be adjusted, and in turn the height of the transmission cylinder 16 relative to the transmission pin 171 is fine-tuned. The transmission cylinder 16 further comprises two limiting rings 165 arranged inside up and down, a hollow cylinder 166 sleeved in the middle of the limiting rings 165, a fixed ring 167 arranged outside the hollow cylinder 166, and a first spring 168 connecting the two limiting rings 165 and the fixed ring 167. The hollow cylinder 166 comprises a threaded groove 1661 arranged at the bottom, and a hammer 1662 threadedly connected to the bottom of the threaded groove 1661. The driving component 17 comprises a transmission pin 171 arranged on the top of the loading plate 15, a driving motor 172 arranged on the top of the loading plate 15 and having an execution end connected to one end of the transmission pin 171, an eccentric disc 173 arranged inside the transmission cylinder 16 and connected to the other end of the transmission pin 171, a pull rod 174 arranged inside the hollow cylinder 166, a connecting rod 175 connecting the pull rod 174 and the eccentric disc 173, and a second spring 176 arranged inside the hollow cylinder 166 and connected to the bottom end of the connecting rod 175 in the middle.
[0030] Please refer to Figs. 5 and 6 for details. Figure 1 、 4 The transmission cylinder 16 comprises two groups of supporting plates 161 arranged on both sides of one end of the loading plate 15, a threaded column 162 rotatably arranged in the middle of each group of supporting plates 161, a second threaded sleeve 163 arranged on both ends of the transmission cylinder 16 and sleeved on the threaded column 162, and a long slot 164 arranged on the end of the transmission cylinder 16 close to the driving component 17. By rotating the threaded column 162, the height of the second threaded sleeve 163 can be adjusted, and in turn the height of the transmission cylinder 16 relative to the transmission pin 171 is fine-tuned. The transmission cylinder 16 further comprises two limiting rings 165 arranged inside up and down, a hollow cylinder 166 sleeved in the middle of the limiting rings 165, a fixed ring 167 arranged outside the hollow cylinder 166, and a first spring 168 connecting the two limiting rings 165 and the fixed ring 167. The hollow cylinder 166 comprises a threaded groove 1661 arranged at the bottom, and a hammer 1662 threadedly connected to the bottom of the threaded groove 1661. The driving component 17 comprises a transmission pin 171 arranged on the top of the loading plate 15, a driving motor 172 arranged on the top of the loading plate 15 and having an execution end connected to one end of the transmission pin 171, an eccentric disc 173 arranged inside the transmission cylinder 16 and connected to the other end of the transmission pin 171, a pull rod 174 arranged inside the hollow cylinder 166, a connecting rod 175 connecting the pull rod 174 and the eccentric disc 173, and a second spring 176 arranged inside the hollow cylinder 166 and connected to the bottom end of the connecting rod 175 in the middle.
[0031] The height of the second threaded sleeve 163 can be adjusted by rotating the two threaded columns 162 with a screwdriver, and the height of the transmission cylinder 16 relative to the transmission pin 171 is fine-tuned. Due to the contraction of the first spring 168 and the second spring 176, the positions of the pull rod 174, the eccentric disc 173 and the connecting rod 175 remain unchanged, but due to the different contraction states of the first spring 168 and the second spring 176, the rebounding force changes when the hollow cylinder 166 is driven to reciprocate by the driving motor 172. When the transmission cylinder 16 rises, the lower part of the first spring 168 and the second spring 176 is compressed, and the upper part is stretched. When the hollow cylinder 166 moves upward, the tension received by the hollow cylinder 166 increases, and when the hollow cylinder 166 moves downward, the tension received by the hollow cylinder 166 decreases, so that the knocking force decreases. The driving motor 172 is started, the eccentric disc 173 is driven to rotate through the transmission pin 171, the rotation of the eccentric disc 173 is transmitted to the pull rod 174 through the connecting rod 175, and then the hollow cylinder 166 and the hammer 1662 are driven to reciprocate in the transmission cylinder 16 through the second spring 176, so as to knock the windshield for test. By adjusting the relative height of the transmission cylinder 16, different impact situations can be simulated due to the elastic effect of the first spring 168 and the second spring 176. After a knocking test is completed, the hammer 1662 can be removed from below the threaded groove 1661, and a hammer 1662 with different materials and shapes is replaced for repeated tests.
[0032] The above examples only illustrate the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made on the basis of the technical solutions according to the technical idea of the present application falls within the protection scope of the present application.
Claims
1. An apparatus for testing the safety of an automotive windshield, comprising a stationary base (10), characterized in that, Two groups of first linear motors (11) are arranged on both sides of the top of the fixed base (10), a C-shaped mounting bracket (12) is arranged on the top of the two groups of first linear motors (11), a lifting component (13) is arranged on both sides of the C-shaped mounting bracket (12), a second linear motor (14) is arranged at one end of the lifting component (13), a loading plate (15) is arranged at the execution end of the second linear motor (14), a transmission cylinder (16) is arranged at one end of the loading plate (15), a driving component (17) is arranged on the top of the loading plate (15) and connected with the transmission cylinder (16), and a clamping component (18) is arranged in the fixed base (10).
2. The apparatus for testing the safety of an automotive windshield glass according to claim 1, wherein The lifting component (13) comprises two first threaded rods (131) rotatably arranged on both sides of the C-shaped mounting bracket (12), a first threaded sleeve (132) arranged on the bottom plate at both ends of the second linear motor (14) and sleeved on the middle part of the first threaded rod (131), a double-output motor (133) arranged on the top of the C-shaped mounting bracket (12), and two right-angle connecting shafts (134) arranged on both sides of the double-output motor (133) and connected with the middle shaft of the first threaded rod (131).
3. The apparatus for testing the safety of an automotive windshield glass according to claim 1, wherein The transmission cylinder (16) comprises two groups of supporting plates (161) arranged on both sides of one end of the loading plate (15), a threaded column (162) rotatably arranged in the middle part of each group of supporting plates (161), a second threaded sleeve (163) arranged at both ends of the transmission cylinder (16) and sleeved on the threaded column (162), and a long groove (164) arranged at one end of the transmission cylinder (16) close to the driving component (17).
4. The apparatus for testing the safety of an automotive windshield glass according to claim 1, wherein The transmission cylinder (16) further comprises two limiting rings (165) arranged inside up and down, a hollow cylinder (166) sleeved on the middle part of the limiting ring (165), a fixed ring (167) arranged outside the hollow cylinder (166), and a first spring (168) connecting the two limiting rings (165) and the fixed ring (167).
5. The apparatus for testing the safety of an automotive windshield glass according to claim 4, wherein The hollow cylinder (166) comprises a threaded groove (1661) arranged at the bottom, and a hammer (1662) threadedly connected at the bottom of the threaded groove (1661).
6. The apparatus for testing the safety of an automotive windshield glass according to claim 4, wherein The driving component (17) comprises a transmission pin (171) arranged on the top of the loading plate (15), a driving motor (172) arranged on the top of the loading plate (15) and connected at one end of the transmission pin (171), an eccentric disc (173) arranged at the top end inside the transmission cylinder (16) and connected with the other end of the transmission pin (171), a pull rod (174) arranged inside the hollow cylinder (166), a connecting rod (175) connecting the pull rod (174) and the eccentric disc (173), and a second spring (176) arranged inside the hollow cylinder (166) and connected with the bottom end of the connecting rod (175).
7. The apparatus for testing the safety of an automotive windshield glass according to claim 1, wherein The clamping component (18) comprises a plurality of bidirectional threaded rods (181) arranged in longitudinal and transverse directions inside the fixed base (10), a crank handle (182) connected to the central axis of the bidirectional threaded rods (181) outside the fixed base (10), two limiting plates (183) connected to the bidirectional threaded rods (181), and a plurality of movable grooves (184) arranged on the top of the fixed base (10).
Citation Information
Patent Citations
Automobile windshield hardness detection tool
CN212674616U