CN102622930A - Electromagnetic gun with safety plug - Google Patents

Abstract

An electromagnetic gun with a safety plug comprises a bore and the plug. Internal threads are arranged between the left end of the inner wall of the bore and each steel ball on the inner wall of the bore, the plug is made of plastics and comprises an arc cylinder, a first cylinder and a second cylinder which are sequentially fixedly connected, horizontal central axes of the arc cylinder, the first cylinder and the second cylinder are overlapped, the chord length of the arc cylinder is slightly larger than the inner diameter of the bore, the thickness of the arc cylinder is about 5 millimeters, three to four external threads matched with the internal threads are arranged on the first cylinder, the length of the first cylinder is slightly larger than that of the external threads, and the diameter of the second cylinder is slightly smaller than the minimum distance between the surfaces of an upper steel ball and a lower steel ball on the inner wall of the bore. The overall length of the first cylinder and the second cylinder meets the condition that the right end of the second cylinder can exactly jack the left end of a bullet to pass through the steel balls when the plug is screwed, so that the bullet is ensured to be placed at a correct launching position.

Description

Electromagnetic gun with safety plug

technical field

The invention belongs to the field of physical experiment instruments and relates to an electromagnetic gun with a safety plug.

Background technique

The electromagnetic gun is a physical experiment instrument, and its experimental process is as follows: insert the shell from the left end of the gun bore, push the left end of the shell through the steel ball on the inner wall of the gun bore with a thin wooden stick, close the energy storage switch of the electromagnetic gun, and then turn it on again after a while. Press the launch switch of the electromagnetic gun, and the shell will be fired from the right port of the gun bore. If the shell is installed without the steel ball pushed through the inner wall of the bore, the shell will be ejected from the left port of the bore when fired, causing an accident. Electromagnetic guns with safety plugs can completely eliminate such safety hazards.

Contents of the invention

In order to solve the existing problems, the object of the present invention is to provide an electromagnetic gun with a safety plug, which ensures the safety of the electromagnetic gun during operation.

The technical solution adopted by the present invention to solve its technical problems is: an electromagnetic gun with a safety plug, including a gun bore and a plug, the inner wall of the gun bore is provided with an internal thread from the left end to the steel ball, and the plug is made of plastic , consisting of an arc-shaped cylinder, a first cylinder and a second cylinder, the arc-shaped cylinder, the first cylinder and the second cylinder are fixedly connected in turn, and their central axes in the horizontal direction coincide, and the arc-shaped The chord length of the cylinder is slightly larger than the inner diameter of the gun bore, and the thickness is about 5 mm. The first cylinder is provided with an external thread that is compatible with the internal thread. The number of threads of the external thread is 3-4. The length of the first cylinder Slightly longer than the length of the external thread on it, the diameter of the second cylinder is slightly smaller than the minimum distance between the upper and lower surfaces of the two steel balls on the inner wall of the gun bore, the total length of the first cylinder and the second cylinder satisfies: when the plug is tightened, the first The right end of the two cylinders can just push the left end of the shell through the steel ball, ensuring that the shell is in the correct firing position. When in use, push the shell from the left port of the gun bore, insert the plug into the bore and tighten it, the right end of the second cylinder can just push the left end of the shell over the steel ball, close the energy storage switch of the electromagnetic gun, and press it again after a while When the launch switch of the electromagnetic gun is lowered, the shells are ejected from the right port of the gun bore, which completely eliminates the hidden danger of the shells being shot from the left end of the gun bore and causing accidents.

The invention has the beneficial effects of being simple, practical, safe and reliable.

Description of drawings

Fig. 1 is the cross-sectional structure schematic diagram of the present invention;

In the figure: 1-arc cylinder 2-first cylinder 3-internal thread 4-spring 5-steel ball 6-shell 7-bore 8-second cylinder 9-plug 10-external thread

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail:

As shown in Figure 1, the electromagnetic gun with safety plug of the present invention comprises a gun bore 7 and a plug 9, the inner wall of the gun bore 7 is provided with an internal thread 3 from the left end to the steel ball 5, and the plug 9 is made of plastic It is composed of an arc-shaped cylinder 1, a first cylinder 2 and a second cylinder 8, and the arc-shaped cylinder 1, the first cylinder 2 and the second cylinder 8 are fixedly connected in sequence, and their horizontal direction The central axes coincide, the chord length of the arc-shaped cylinder 1 is slightly greater than the inner diameter of the gun bore 7, and the thickness is about 5 mm. The number is 3-4, the length of the first cylinder 2 is slightly greater than the length of the external thread 10 on it, the diameter of the second cylinder 8 is slightly smaller than the minimum distance between the two steel ball 5 surfaces up and down the inner wall of the gun bore 7, the first The total length of the cylinder 2 and the second cylinder 8 meets: when the plug 9 is tightened, the right end of the second cylinder 8 can just push the left end of the shell 6 over the steel ball 5 . During use, the shell 6 is pushed in from the left port of the gun bore 7, the plug 9 is inserted into the gun bore 7 and tightened, the right end of the second cylinder 8 can just push the left end of the shell 6 over the steel ball 5, and close the energy storage of the electromagnetic gun switch, after a while and then press the launch switch of the electromagnetic gun, the shell will be ejected from the right port of the gun bore, which thoroughly eliminates the hidden danger that the shell 6 will be ejected from the left end of the gun bore 7 and cause an accident.

Claims (3)

1. be with the magnetic artillery of safety plug; Comprise bore and plug; It is characterized in that: the inwall of said bore is provided with internal thread between from the left end to the steel ball, and said plug is made up of circular-arc cylinder, first right cylinder and second right cylinder, and circular-arc cylinder, first right cylinder and second right cylinder are fixedly connected sequentially; First right cylinder is provided with the external thread adaptive with internal thread, and externally threaded number of threads is 3-4.

2. the magnetic artillery of band safety plug according to claim 1; It is characterized in that: circular-arc cylinder, first right cylinder and second right cylinder central shaft in the horizontal direction overlaps; Internal diameter, thickness that the chord length of circular-arc cylinder is a bit larger tham bore are 5 millimeter; The first cylindrical length is a bit larger tham externally threaded length on it; The second cylindrical diameter is slightly less than the up and down minor increment between two steel ball surfaces of bore inwall, and first right cylinder and the second cylindrical length overall satisfy: when plug was screwed, the second cylindrical right-hand member can just push up steel ball to the left end of shell.

3. the magnetic artillery of band safety plug according to claim 1 and 2 is characterized in that: plug is made of plastic.

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