CN207860129U - A kind of ejection type safety hammer - Google Patents

Abstract

The utility model designs an ejection type safety hammer, which adopts a connecting rod transmission structure. With the help of a high-compression spring inside, it can generate a very strong impact force when the trigger is kneaded. It can also be used repeatedly. When using it, the hammer part is close to the glass. , you only need to pinch the trigger, through the elastic potential energy of the spring, drive the internal mechanical structure, make the hammer hit quickly, break the glass, and buy precious time for escaping in a traffic accident; even women or children with less strength can When used, the hammer will rotate due to the internal structure at the moment before it is struck, which can strengthen the destructive effect of hitting the glass. After the hammer is struck, it will not be separated from the hammer body, avoiding accidental injury when it is idle; especially Yes, when the spring fails, it can also be used as an ordinary cone-shaped ram, swinging and hitting the window to ensure the effect of breaking the window safely and quickly. The structure is simple, practical, safe and reliable.

Description

An ejection type safety hammer

technical field

The utility model relates to an ejection type safety hammer, in particular to a safety hammer suitable for various groups of people and capable of breaking car window glass with low effort, and belongs to the technical field of safety appliances for car passengers.

Background technique

In terms of safety, buses, large and medium-sized passenger cars or small cars, and high-speed rail compartments all need to be equipped with a certain number of safety hammers. Broken car windows and escape quickly, the safety hammer with traditional structure will cause a lot of inconvenience in use due to factors such as underwater resistance, insufficient swinging force, and sufficient water in the use space, so that the purpose of breaking the car window quickly and in time cannot be achieved. , Delayed the best time to escape, thus causing unnecessary damage.

A considerable number of innovative products have been released to solve the problems of insufficient swing space and insufficient strength in the car. For example, the Chinese invention patent "pull-type safety hammer" (201410727056.7) discloses that, based on the principle of a slingshot, the safety hammer is adsorbed on the window glass through a suction cup, and a spring is installed between the suction cup and the safety hammer, and the safety hammer is grasped during use. The handle is pulled out and then released, and the hammer hits the window glass until it is broken; the disadvantage is that the device must be adsorbed on the window glass, which is obviously not suitable for most small cars with liftable windows ;Similarly, the invention patent "a shrapnel type safety escape hammer" (201210086857.0) also has such shortcomings; the invention patent "a safety hammer" (201010281663.7) discloses that the trigger is triggered, the main spring is Push the hammer head to hit the window glass, and form a combined force with the impact force generated by swinging the hammer handle to smash the car window glass, but it is impossible to form a combined force impact effect in actual use, because the main spring pushes the hammer head to hit It will inevitably lag behind the hitting time of swinging the hammer handle. On the other hand, the swinging type hitting the car window also needs to have enough swinging space; It can be predicted that pulling the trigger to hit the car window will have a good effect, but if it misses a hit, it will take two hands to return the hammer head when recovering, and enough strength will be required when returning to the position. This is obviously not applicable to women and children; although the invention patent "A Vehicle-mounted Powerful Safety Hammer" (201110407639.8) can store energy through a spring, release it quantitatively and automatically, and complete the action of smashing the window, but the device also requires both hands to operate and requires The energy storage of the spring can only be completed with sufficient strength, which is not suitable for women and children. If the energy storage fails, the car window cannot be hit by the spare waving method.

Contents of the invention

The purpose of this utility model is to design an ejection type safety hammer for the problems mentioned in the background technology. It adopts a connecting rod transmission structure, and with the help of a high-compression spring inside, it can generate a very strong impact force when the trigger is kneaded, and it can also be used repeatedly. , its structure is similar to that of a manual air nail gun. When using it, put the ram part close to the glass. You only need to pinch the trigger. Through the elastic potential energy of the spring, the internal mechanical structure is driven to make the ram hit out quickly and break the glass. Save precious time for mid-escape; even women or children with less strength can use it. At the moment before hitting, the hammer will rotate due to the internal structure, which can strengthen the destructive effect of hitting the glass. It is not separated from the hammer body after it is released, so as to avoid accidentally injuring yourself when it is idle; especially, when the spring fails, it can also be used as an ordinary conical mace, swinging and hitting the car window, ensuring the effect of breaking the car window safely and quickly , Simple structure, strong practicability, safe and reliable.

The technical scheme of the utility model is: an ejection type safety hammer, comprising: a shell 1, a main spring 2, a limit snap ring 3, a guide sleeve 4, a hammer 5, a bottom shell 6, a return spring 7, a trigger 8, Resetting auxiliary lever 9; the shell 1 is in the shape of an inverted pipe; it is characterized in that:

The hammer 5 is a gyro-shaped cylinder, and at least three radially outwardly protruding sliders are distributed at equal intervals on the outer circumference of the upper part of the hammer 5. The outer surface of the slider is in line with the The concentric arc surface of the cylinder, the side of the slider is pentagonal, wherein: the left and right sides are vertical surfaces, the upper side is the upper surface of the hammer 5, and the right side and the upper surface are a 45-degree chamfered slope, The lower part between the left and right vertical surfaces is a slope;

The guide sleeve 4 is set on the lower part of the hammer 5, and the circumference of the guide sleeve 4 is provided with slideways equal to the number of sliders on the hammer 5; the hammer 5 can rotate relative to the guide sleeve 4, The sliding block and the slideway are vertically slidably matched; the guide sleeve 4 is fixedly connected in the shell 1;

The limit snap ring 3 is annular, the inner and outer diameters of the limit snap ring 3 are respectively equal to the inner and outer diameters of the guide sleeve 4, and the lower end of the limit snap ring 3 protrudes downwards with a number equal to the number of the sliders. The shape of the left side of the lug matches the 45-degree chamfering slope between the upper right side of the slider, and there is also a 45-degree chamfering slope between the lower surface of the lug and the left side;

The bottom case 6 is also in the shape of a ring, and the inner circle of the bottom case 6 ring is slidingly fitted with the cylindrical surface of the ram 5. A hinge ear is provided on the outer circle, and the hinge ear is hinged to one end of the reset auxiliary rod 9;

Inside the pipe in the shape of an inverted pipe in the outer casing 1, there are, from top to bottom, the main spring 2, the limit snap ring 3, the guide sleeve 4, the striker 5 and the bottom case 6. The upper end of the main spring 2 is connected to the The casing 1 is fixedly connected, and the lower end of the main spring 2 is fixedly connected with the upper surface of the hammer 5; the outer circumference of the limit snap ring 3 is provided with splines, and the inner surface of the pipe of the casing 1 is provided with splines that are in line with the splines. Key slots for key sliding fit; the limit snap ring 3 can only slide relative to the pipe in the vertical direction.

One end of the trigger 8 is hinged with the outer circle of the limit snap ring 3 through a hinge ear; the trigger 8 is used to push the limit snap ring 3 to move up and down;

The other end of the reset auxiliary lever 9 is in contact with the tail of the shell 1, and the reset spring 7 is connected between the other end of the trigger 8 and the tail of the shell 1;

When the main spring 2 is in the compressed state, the cylindrical surface of the hammer 5 is completely hidden in the inverted pipe-shaped pipe of the casing 1;

When the reset auxiliary lever 9 rotates and overcomes the elastic force of the main spring 2 to jack up the hammer 5, the slider on the hammer 5 contacts with the two 45-degree chamfered slopes between the lugs of the limit snap ring 3, further The ram 5 rotates clockwise and the lower side of the left side of the slider slides against the upper surface of the guide sleeve 4 until the slider matches the lug, and the lug blocks the ram 5;

When the trigger 8 acts to push up the limit snap ring 3, the slider is disengaged from the lug, the hammer 5 rotates counterclockwise, the slider falls into the slideway of the guide sleeve 4, and the hammer 5 is pushed by the main spring 2 pop up.

The above-mentioned ejection type safety hammer is characterized in that: the lower cone of the hammer 5 is inlaid with a diamond drill bit. The beneficial effect is that: when the ram 5 is unscrewed, it can pre-destroy the glass.

The beneficial effects of the utility model are:

1. Changing the form of the existing safety hammer effectively saves labor.

2. Due to the elastic potential energy of the internal main spring, the internal mechanical structure is driven, and the impact hammer will be struck out quickly, breaking the glass, and gaining precious time for escaping in a traffic accident.

3. The ejection safety hammer adopts a connecting rod transmission structure. With the help of its internal high-compression spring, it can generate a very strong impact when the switch is kneaded. It can also be used repeatedly, even for women or children. Since the hammer is driven out without separation, it avoids accidentally injuring yourself when idle.

4. The overall style is tough, neat and beautiful, and can be produced by simple technology, and the manufacturer can produce at a very low cost.

Description of drawings

Fig. 1 is a perspective view of an unused state of an embodiment of the utility model "an ejection safety hammer".

Fig. 2 is a perspective view of the usage state of "an ejection safety hammer" according to the embodiment of the utility model.

Fig. 3 is a schematic diagram of the reset process of the hammer through the reset auxiliary lever.

Fig. 4 is an exploded view of the structure of "an ejection safety hammer" according to the embodiment of the utility model.

Fig. 5 is a schematic diagram when the slider is fastened with the buckle.

Fig. 6 is a schematic diagram when the slider is separated from the lug.

Explanation of symbols in the drawings: shell 1, main spring 2, limit snap ring 3, guide sleeve 4, hammer 5, bottom case 6, return spring 7, trigger 8, reset auxiliary lever 9.

Detailed ways

The embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, intended to explain the utility model, but not to be construed as a limitation of the utility model, any modifications made within the spirit and principles of the utility model, Equivalent replacements or improvements, etc., should be included within the scope of the claims of the present utility model, and those not mentioned in detail in this technical solution are all known technologies.

Referring to Fig. 1 to Fig. 6, the utility model is an ejection type safety hammer, comprising: a casing 1, a main spring 2, a limit snap ring 3, a guide sleeve 4, a striker 5, a bottom case 6, a return spring 7, and a trigger 8. Reset auxiliary lever 9; the shell 1 is in the shape of an inverted pipe. The hammer 5 is a gyro-shaped cylinder, and at least three radially outwardly protruding sliders are distributed at equal intervals on the outer circumference of the upper part of the hammer 5. The outer surface of the slider is in line with the The concentric arc surface of the cylinder, the side of the slider is pentagonal, wherein: the left and right sides are vertical surfaces, the upper side is the upper surface of the hammer 5, and the right side and the upper surface are a 45-degree chamfered slope, The lower part between the left and right vertical surfaces is a slope.

The guide sleeve 4 is set on the lower part of the hammer 5, and the circumference of the guide sleeve 4 is provided with slideways equal to the number of sliders on the hammer 5; the hammer 5 can rotate relative to the guide sleeve 4, The sliding block and the sliding track are vertically slidably matched; the guide sleeve 4 is fixedly connected in the housing 1 .

The limit snap ring 3 is annular, the inner and outer diameters of the limit snap ring 3 are respectively equal to the inner and outer diameters of the guide sleeve 4, and the lower end of the limit snap ring 3 protrudes downwards with a number equal to the number of the sliders. The shape of the left side of the lug matches the 45-degree chamfering bevel between the upper right side of the slider, and there is also a 45-degree chamfering bevel between the lower surface of the lug and the left side.

The bottom case 6 is also in the shape of a ring, and the inner circle of the bottom case 6 ring is slidingly fitted with the cylindrical surface of the ram 5. A hinge ear is provided on the outer circle, and the hinge ear is hinged to one end of the reset auxiliary rod 9 .

Inside the pipe in the shape of an inverted pipe in the outer casing 1, there are, from top to bottom, the main spring 2, the limit snap ring 3, the guide sleeve 4, the striker 5 and the bottom case 6. The upper end of the main spring 2 is connected to the The casing 1 is fixedly connected, and the lower end of the main spring 2 is fixedly connected with the upper surface of the hammer 5; the outer circumference of the limit snap ring 3 is provided with splines, and the inner surface of the pipe of the casing 1 is provided with splines that are in line with the splines. A keyway for key sliding fit; the limit snap ring 3 can only slide relative to the pipe in the vertical direction, and its function is to fasten or loosen the slider on the hammer 5 .

One end of the trigger 8 is hinged with the outer circle of the limit snap ring 3 through a hinge ear; the trigger 8 is used to push the limit snap ring 3 to move up and down.

The other end of the reset auxiliary lever 9 is in contact with the tail of the casing 1 , and the return spring 7 is connected between the other end of the trigger 8 and the tail of the casing 1 .

When the main spring 2 is in the compressed state, the cylindrical surface of the hammer 5 is completely hidden in the inverted pipe-shaped pipe of the casing 1 .

When the reset auxiliary lever 9 rotates and overcomes the elastic force of the main spring 2 to jack up the hammer 5, the slider on the hammer 5 contacts with the two 45-degree chamfered slopes between the lugs of the limit snap ring 3, further The ram 5 rotates clockwise and the lower side of the left side of the slider slides against the upper surface of the guide sleeve 4 until the slider matches the lug, and the lug blocks the ram 5.

When the user manually presses the trigger 8 and the trigger 8 acts to push up the limit snap ring 3, the slider is disengaged from the lug, the hammer 5 rotates counterclockwise, the slider falls into the slideway of the guide sleeve 4, and hits Hammer 5 ejects under main spring 2 promotion.

Preferably, a diamond drill bit is inlaid on the cone at the lower end of the hammer 5 . Play a pre-damage effect on the glass when the hammer 5 is unscrewed to facilitate.

The utility model is an ejection type safety hammer which changes the form of the existing safety hammer and effectively achieves the labor-saving effect. Due to the elastic potential energy of the internal main spring, the internal mechanical structure is driven, and the striking hammer will be struck out quickly, breaking the glass, and gaining precious time for escaping in a traffic accident. The ejection safety hammer adopts a connecting rod transmission structure. With the help of its internal high-compression spring, it can generate a very strong impact force when the switch is pinched, and it can be used repeatedly, even for women or children. Since the hammer is driven out without separation, it avoids accidentally injuring yourself when idle. The overall style is tough, neat and beautiful, and can be produced by simple technology, and the manufacturer can produce it at a very low cost.

Claims (2)

1. An ejection safety hammer, including: shell (1), main spring (2), limit snap ring (3), guide sleeve (4), striker (5), bottom shell (6), reset Spring (7), trigger (8), reset auxiliary lever (9); the shell (1) is in the shape of an inverted pipe; it is characterized in that: The hammer (5) is a gyro-shaped cylinder, and at least three radially outwardly protruding sliders are distributed at equal intervals on the outer circumference of the upper part of the hammer (5). The outer surface of the sliders It is a concentric arc surface with the cylinder, and the side of the slider is pentagonal, wherein: the left and right sides are vertical surfaces, the upper side is the upper surface of the hammer (5), and between the right side and the upper surface is a 45-degree chamfering slope, the lower part between the left and right vertical surfaces is a slope; The guide sleeve (4) is set on the lower part of the ram (5), and the circumference of the guide sleeve (4) is provided with slideways equal to the number of sliders on the ram (5); the ram (5) ) can rotate relative to the guide sleeve (4), and the sliding block and the slideway are vertically slidably matched; the guide sleeve (4) is fixedly connected in the shell (1); The limit snap ring (3) is in the shape of a ring, the inner and outer diameters of the limit snap ring (3) are respectively equal to the inner and outer diameters of the guide sleeve (4), and the lower end of the limit snap ring (3) protrudes downward with a The number of lugs equal to the number of the sliders, the shape of the left side of the lugs matches the 45-degree chamfering slope between the upper right side of the sliders, and the gap between the lower surface of the lugs and the left side There is also a 45 degree chamfer bevel; The bottom case (6) is also in the shape of a ring, and the inner circle of the bottom case (6) ring slides and fits with the cylindrical surface of the ram (5), and the bottom case (6) ring and the outer shell (1 ) is fixedly connected to the lower surface, and the outer circle of the bottom shell (6) is provided with a hinge ear, and the hinge ear is hinged to one end of the reset auxiliary rod (9); Inside the inverted pipe-shaped pipe of the casing (1), from top to bottom are: main spring (2), limit snap ring (3), guide sleeve (4), ram (5) and bottom Shell (6), the upper end of the main spring (2) is fixedly connected with the outer shell (1), the lower end of the main spring (2) is fixedly connected with the upper surface of the hammer (5); the outer limit snap ring (3) Splines are provided on the circumference of the circle, and the inner surface of the pipe of the casing (1) is provided with a keyway that slides and fits with the splines; One end of the trigger (8) is hinged with the outer circle of the limit snap ring (3) through a hinge ear; the trigger (8) is used to push the limit snap ring (3) to move up and down; The other end of the reset auxiliary lever (9) is in contact with the tail of the casing (1), and the return spring (7) is connected between the other end of the trigger (8) and the tail of the casing (1); When the main spring (2) is in a compressed state, the cylindrical surface of the hammer (5) is completely hidden in the inverted pipe-shaped pipe of the casing (1); When the reset auxiliary lever (9) rotates and overcomes the elastic force of the main spring (2) to push up the hammer (5), the two-way distance between the slider on the hammer (5) and the lug of the limit snap ring (3) The two 45-degree chamfered slopes are in contact with each other, and the further hammer (5) rotates clockwise and the lower side of the left side of the slider slides against the upper surface of the guide sleeve (4) until the slider is engaged with the lug, and the lug That is, the ram (5) is stuck; When the trigger (8) acts to push up the limit snap ring (3), the slider is disengaged from the lug, the hammer (5) rotates counterclockwise, and the slider falls into the slideway of the guide sleeve (4), The hammer (5) pops up under the push of the main spring (2). 2. An ejection type safety hammer according to claim 1, characterized in that: the lower cone of the hammer (5) is inlaid with a diamond drill bit.