Car safety hammer with prestressing force

Abstract

The invention relates to a car safety hammer with a prestressing force. The car safety hammer comprises a safety hammer body, a firing pin and a patting button, wherein front and rear cavities separated by a separation wall and opened outwards are arranged at the two ends of the safety hammer body; a firing pin guide hole is formed in the separation wall; the firing pin is mounted in the firing pin guide hole of the separation wall in a slide fit way; the front part of the firing pin is positioned in the front cavity of the body; the front end of the firing pin is a conical tip; the head of the conical tip retracts into the plane at the open end of the front cavity; the rear part of the firing pin is positioned in the rear cavity of the body and fixedly connected with the patting button; a column-shaped check block as a rear sub-collision block is arranged between the conical tip and the separation wall; and a pressure spring for applying the prestressing force to the body is arranged between the patting button of the rear cavity and the separation wall. According to the car safety hammer, the firing pin can be subjected to field adjustment according to the actual situation, and a pressure is previously applied to glass through the prestressing force for removing the toughness of the glass, so that the car glass can be quickly broken and the adaptability to the field use of the car safety hammer and the breaking reliability of the car glass are improved.

Description

technical field [0001] The invention belongs to an automobile safety device, in particular to an automobile safety hammer with prestress. Background technique [0002] When an emergency accident or disaster occurs in a car, it is necessary to smash the car glass to escape. We all know that the car glass is tempered glass. The hammer continues to press down and break, so in order to break the glass quickly, it is usually required to hit the joint between the edge of the glass and the window frame, because the bending of the glass at this position is the smallest and the glass is the most fragile; with the popularity of cars in today's society And a wide range of applications, when an emergency accident or disaster occurs in a car, how to escape quickly is a problem that people pay special attention to. In order to solve the use of car safety hammers, people have come up with many ways, especially when the car falls into the water, the water will The glass builds up pressure,...

AI Technical Summary

Problems solved by technology

[0002] When an emergency accident or disaster occurs in a car, it is necessary to smash the car glass to escape. We all know that the car glass is tempered glass. The hammer continues to press down and break, so in order to break the glass quickly, it is usually required to hit the joint between the edge of the glass and the window frame, because the bending of the glass at this position is the smallest and the glass is the most fragile; with the popularity of cars in today's society And a wide range of applications, when an emergency accident or disaster occurs in a car, how to escape quickly is a problem that people pay special attention to. In order to solve the use of car safety hammers, people have come up with many ways, especially when the car falls into the water, the water will Glass builds up pressure and normal safety hammers may not be effective

If you wave a safety hammer in the water to smash the glass, the water hand and the safety hammer will have a certain resistance, and the safety hammer generally used to smash the glass cannot be fixed on the glass surface. There may also be incidents of theft of public safety hammers without public safety awareness, so one of the methods is to fix the safety hammer directly on the window, but due to the characteristics of tempered glass, this kind of safety hammer often needs to be struck many times before it can be used. Break the glass, especially strict requirements on the installation position, which brings inconvenience to the use

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