Portable emergency escape tool in motor vehicle

Abstract

Disclosed is a portable emergency evacuation tool in a motor vehicle. The portable emergency evacuation tool is high in starting speed, high in window breaking success rate, small in size, convenient to carry and safe and stable. The portable emergency evacuation tool is formed by a ball handle, a cylinder cover, a safety pin, a screw, a screw spike, a cylinder, a pressure spring, a spring support and a rivet and is characterized in that the ball handle is connected with the upper end of the screw through threads; the screw penetrates the cylinder cover and the pressure spring; the cylinder cover and the cylinder are fixed through the screw spike; the lower end of the screw and the spring support are fixed; the river is embedded at the bottom of the screw; the bottom of the cylinder is provided with a circular hole; a nail point of the rivet extends out of the circular hole; the safety pin penetrates the cylinder cover and the screw.

Description

technical field [0001] The invention relates to the field of motor vehicle safety, in particular to an emergency escape tool for breaking windows in a motor vehicle. Background technique [0002] As a necessary escape tool in buses, school buses, etc., safety hammer has been widely adopted and recognized. However, there are many problems in the use of common traditional safety hammers, resulting in that the use of the safety hammer cannot timely and effectively break the window and escape when a dangerous situation occurs. In recent years, when a car has an accident, the situation of losing the chance of escape because the window cannot be opened occurs frequently. The vehicle-mounted safety hammer that is widely used at this stage is mainly to break the glass with the hammer tip to escape. It has some obvious disadvantages when it is used. First, most people do not know that they should use the safety hammer to hit the corner of the window where the stress is concentrated....

AI Technical Summary

Problems solved by technology

The vehicle-mounted safety hammer that is widely used at this stage is mainly to break the glass with the hammer tip to escape. It has some obvious disadvantages when it is used. First, most people do not know that they should use the safety hammer to hit the corner of the window where the stress is concentrated. And to knock on the window that is not easy to be broken

In addition, on school buses, tourist buses, etc., the upper edge of the window is blocked by the luggage rack, and the lower edge is blocked by the seat, so there is no suitable point of force for hammering the corner of the window, and the window center that is not easy to be broken can only be selected.

The second is that when danger occurs, the car is crowded and crowded, and the user does not have enough space to stretch his arms and enough buffer distance, so that the hammering force is too small to break the glass.

The third is that the safety hammer is placed directly next to the window, which is easy to lose

Fourth, when a safety hammer is used in danger, the hammering force is often not perpendicular to the glass surface, and the direction of the force is inclined at an angle to the glass surface, which greatly reduces the hammering force and makes it difficult to break the glass

Fifth, when an accident occurs, most people will be in panic, worrying that using a safety hammer to hammer the glass will scratch their arms by glass fragments, so when knocking on the window, they may not be able to smash the window quickly due to psychological factors

In addition, Chinese Patent Publication No. 103434474A, publication date 2013.12.11, the name of the invention is a safety window breaker. This application discloses a safety window breaker. On both sides of the shaft, it takes up a lot of internal space, making the whole device bulkier and not conducive to portability

The second is that the ring rod hooks the central axis through the cross bar at the end when in use, and the cross bar is easily broken by a huge shear force, which makes the whole device not safe and stable

The third is that the protruding part of the rivet is longer, which increases the cost, and the reaction force received when the rivet hits the glass is easy to cause the rivet to break, so it cannot be recycled many times

Its disadvantages are, first, the hinged snap-on structure on the side wall of the inner tube. When the straight tube and the inner tube slide relative to each other, the tiny snap-on structure bears huge pressure, which is easy to damage the internal structure

The second is to slap the whole device with pressure when using it. If you touch the glass fragments with too much force, you will be scratched

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