Automobile seat linkage device with emergency window breaking function
By designing a car seat linkage device with an emergency window-breaking function, the hammer is released to break the window using the headrest button, solving the problem that traditional seats cannot break windows quickly and enabling rapid escape in emergency situations.
Patent Information
- Application Number
- CN202521631276.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-01
AI Technical Summary
Traditional car seats are not equipped with emergency window-breaking tools, requiring passengers to find specialized tools or expend effort to break the window, thus delaying escape time.
Design a car seat linkage device with emergency window breaking function. The hammer is released by pulling the button on the headrest. The tungsten carbide window breaking cone and polycarbonate cover plate are used to break the window quickly. The combination of compression spring and guide tube structure ensures convenient operation and stability.
In an emergency, passengers can easily break the window by pressing the headrest button, providing a quick escape route, improving safety, and avoiding delays in escape due to insufficient strength.
Smart Images
Figure CN224675942U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a car seat linkage device with an emergency window-breaking function. Background Technology
[0002] Emergency situations are unpredictable while a car is in motion, such as the vehicle falling into water or catching fire. In such cases, the doors may not open properly for various reasons, requiring passengers to break windows to escape. Traditional car seats do not come equipped with emergency window-breaking tools, forcing passengers to search for specialized tools, which delays escape time. While some cars now have built-in window-breaking tools, breaking windows requires considerable strength, and some passengers may lack the strength, leading to significant delays in escape. Summary of the Invention
[0003] To address the aforementioned problems, this utility model discloses a car seat linkage device with an emergency window-breaking function.
[0004] To achieve the above objectives, the specific technical solution of this application is as follows:
[0005] A car seat linkage device with emergency window breaking function includes a headrest body, two headrest support rods, a window breaking component, a locking component, and a seat back. The headrest body has a breakable cover plate on the side facing the vehicle side window, and a cylindrical guide cylinder is fixed inside the cover plate, with the axis of the guide cylinder perpendicular to the plane of the cover plate.
[0006] The window-breaking assembly inside the guide tube includes a slidably mounted hammer, a hard alloy window-breaking cone fixed at the front end of the hammer, and a compression spring sleeved at the tail end of the hammer. The front end of the compression spring abuts against the inner flange of the guide tube, and the rear end abuts against the boss at the tail end of the hammer. Under normal conditions, it is in a pre-compressed and energy-storing state. A transverse slot is opened at the tail end of the hammer, and the locking assembly includes at least two nylon shear pins that penetrate the side wall of the guide tube and are inserted into the slot to lock the hammer position.
[0007] The headrest is equipped with a lifting and unlocking mechanism at the top, which includes at least two lifting buttons embedded in the top surface of the headrest and a steel wire rope connected to the bottom. The end of the steel wire rope is fixed to the outer end of the shear pin. When the lifting button is lifted vertically, the shear pin is pulled out through the steel wire rope, releasing the hammer to strike the cover plate and break the window.
[0008] Based on the above technical features, the surface of the pull button is further provided with a concealed soft cover to prevent accidental touch.
[0009] Based on the above technical features, preferably, the pre-compression force of the compression spring is 200N-350N.
[0010] Based on the above technical features, preferably, the diameter of the shear pin is 1.8cm ± 0.1cm.
[0011] Based on the above technical features, preferably, the fractured cover is made of polycarbonate with a thickness of 2-4 mm, and the inner surface is laser-engraved with cross-shaped pre-cracks with a depth of 0.2 mm.
[0012] Based on the above technical features, preferably, the window-breaking cone is made of tungsten carbide, with a cone angle of 60° and a tip curvature radius ≤0.1mm.
[0013] Based on the above technical features, preferably, the inner wall of the guide cylinder is coated with a polytetrafluoroethylene anti-friction coating with a friction coefficient ≤0.05.
[0014] Compared with the prior art, the beneficial effects of this application are as follows:
[0015] This application has a simple structure. The occupant can lift the pull button on the top of the headrest with both hands vertically, pull out the shear pin through the steel wire rope, release the hammer to hit the cover plate and break the window. The operation is simple and convenient, requires no special skills, and is easy to execute quickly in an emergency.
[0016] The window-breaking cone is made of tungsten carbide, with a cone angle of 60° and a tip curvature radius of ≤0.1mm. Combined with a shatterable cover plate made of polycarbonate and pre-cracked with a cross, it can efficiently shatter vehicle window glass and quickly open an escape route for occupants.
[0017] The pre-compression force of the compression spring is set in the range of 200N - 350N, which ensures that the hammer has sufficient impact force while avoiding excessive stress on the device; the inner wall of the guide cylinder is coated with a polytetrafluoroethylene anti-friction coating to reduce the coefficient of friction, ensure smooth hammer sliding, and improve the overall stability of the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a car seat linkage device with emergency window breaking function according to the present invention;
[0019] Figure 2 This is a schematic diagram of the left-side structure of the headrest body in this utility model;
[0020] List of identifiers in attached diagrams:
[0021] 1. Headrest body; 1a. Fracturable cover; 1b. Guide tube; 2. Support rod; 3. Window breaking assembly; 3a. Hammer; 3b. Window breaking cone; 3c. Compression spring; 3d. Slot; 4. Locking assembly; 4a. Shear pin; 5. Pull-up unlocking mechanism; 5a. Pull-up button; 5b. Steel wire rope; 6. Seat backrest. Detailed Implementation
[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.
[0023] It should be noted that the terms "upper," "lower," "left," "right," "front," and "rear" used in the following description refer to the directions shown in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] like Figure 1 As shown, a car seat linkage device with emergency window breaking function includes a headrest body 1, two headrest support rods 2, a window breaking component 3, a locking component 4, and a seat back 6. The headrest body 1 has a breakable cover plate 1a on the side facing the vehicle side window. A cylindrical guide cylinder 1b is fixed inside the cover plate, and the axis of the guide cylinder is perpendicular to the plane of the cover plate. The window breaking component 3 inside the guide cylinder 1b includes a sliding hammer 3a. A hard alloy window breaking cone 3b is fixed at the front end of the hammer, and a compression spring 3c is sleeved at the rear end of the hammer. The front end of the compression spring 3c abuts against the inner flange of the guide cylinder, and the rear end abuts against the boss at the rear end of the hammer. Under normal conditions, it is in a pre-compressed and energy-storing state. A transverse slot 3d is opened at the rear end of the hammer 3a. The locking component 4 includes at least two nylon shear pins 4a that penetrate the side wall of the guide cylinder and are inserted into the slot to lock the hammer position.
[0025] The headrest is equipped with a lifting and unlocking mechanism 5, which includes at least two lifting buttons 5a embedded in the top surface of the headrest and a steel wire rope 5b connected to the bottom. The end of the steel wire rope 5b is fixed to the outer end of the shear pin 4a. When the lifting button 5a is lifted vertically, the shear pin 4a is pulled out through the steel wire rope 5b, and the hammer 3a is released to strike the cover plate 1a and break the window.
[0026] Preferably, the surface of the pull button is provided with a concealed soft cover 5c.
[0027] Preferably, the pre-compression force of the compression spring 3c is 200N-350N.
[0028] Preferably, the diameter of the shear pin 4a is 1.8cm ± 0.1cm.
[0029] Preferably, the fractured cover plate 1a is made of polycarbonate with a thickness of 2-4 mm and the inner surface is laser-engraved with cross-shaped pre-cracks with a depth of 0.2 mm.
[0030] Preferably, the window-breaking cone 3b is made of tungsten carbide, with a cone angle of 60° and a tip curvature radius ≤0.1mm.
[0031] Preferably, the inner wall of the guide cylinder 1b is coated with a polytetrafluoroethylene anti-friction coating with a friction coefficient ≤0.05.
[0032] Working principle:
[0033] In normal use, the device is in standby mode, with hammer 3a locked inside guide cylinder 1b by shear pin 4a, and compression spring 3c in a pre-compressed state, storing energy for the window-breaking action. The ruptureable cover 1a remains intact, not affecting the passenger's normal use of the headrest.
[0034] In an emergency, the passenger lifts the pull button 5a on the top of the headrest, which transmits the pulling force through the steel wire rope 5b, pulls out the shear pin 4a, and releases the lock on the hammer 3a.
[0035] After the lock is released, the compression spring 3c releases its elastic potential energy, pushing the hammer 3a to slide forward quickly along the guide cylinder 1b. The window-breaking cone 3b strikes the ruptureable cover plate 1a. Under the action of the cross pre-crack, the cover plate 1a breaks, and the window-breaking cone 3b is ejected from the headrest body 1 to shatter the window glass, completing the window breaking. Passengers can immediately escape through the broken window and achieve rapid self-rescue.
[0036] In summary, the car seat linkage device with emergency window-breaking function of this utility model has a simple structure and is easy to operate. It can provide passengers with a means of quickly breaking windows and escaping in emergency situations, effectively improving the safety of riding.
[0037] It should be noted that the accompanying drawings merely illustrate the technical concept of the present invention and should not be used to limit the scope of protection of the present invention. For those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.
Claims
1. A car seat linkage device with emergency window breaking function, comprising a headrest body (1), two headrest support rods (2), a window breaking component (3), a locking component (4), and a seat back (6), characterized in that: The headrest body (1) has a ruptureable cover plate (1a) on the side facing the vehicle side window, and a cylindrical guide cylinder (1b) is fixed inside the cover plate, with the axis of the guide cylinder perpendicular to the plane of the cover plate. The window-breaking assembly (3) inside the guide tube (1b) includes a sliding hammer (3a), a hard alloy window-breaking cone (3b) fixed at the front end of the hammer, and a compression spring (3c) sleeved at the tail end of the hammer. The front end of the compression spring (3c) abuts against the inner flange of the guide tube, and the rear end abuts against the boss at the tail end of the hammer. Under normal conditions, it is in a pre-compressed and energy-storing state. A transverse slot (3d) is opened at the tail end of the hammer (3a). The locking assembly (4) includes at least two nylon shear pins (4a) that penetrate the side wall of the guide tube and are inserted into the slot to lock the hammer position. The headrest is provided with a lifting unlocking mechanism (5) at the top, which includes at least two lifting buttons (5a) embedded in the top surface of the headrest and a steel wire rope (5b) connected to the bottom. The end of the steel wire rope (5b) is fixed to the outer end of the shear pin (4a). When the lifting button (5a) is lifted vertically, the shear pin (4a) is pulled out through the steel wire rope (5b), and the hammer (3a) is released to strike the cover plate (1a) and break the window.
2. The car seat linkage device with emergency window-breaking function according to claim 1, characterized in that: The surface of the pull button is provided with a concealed soft cover (5c).
3. The car seat linkage device with emergency window-breaking function according to claim 1, characterized in that: The pre-compression force of the compression spring (3c) is 200N-350N.
4. The car seat linkage device with emergency window breaking function according to claim 1, characterized in that: The diameter of the shear pin (4a) is 1.8cm ± 0.1cm.
5. A car seat linkage device with emergency window-breaking function according to claim 1, characterized in that: The fracturing cover plate (1a) is made of polycarbonate with a thickness of 2-4 mm and has a cross-shaped pre-crack with a laser engraving depth of 0.2 mm on the inner surface.
6. A car seat linkage device with emergency window-breaking function according to claim 1, characterized in that: The window-breaking cone (3b) is made of tungsten carbide, with a cone angle of 60° and a tip curvature radius ≤0.1mm.
7. A car seat linkage device with emergency window-breaking function according to claim 1, characterized in that: The inner wall of the guide cylinder (1b) is coated with a polytetrafluoroethylene anti-friction coating with a friction coefficient ≤0.05.