CN111076620A

CN111076620A - Compressed air firecracker

Info

Publication number: CN111076620A
Application number: CN201811218634.9A
Authority: CN
Inventors: 王新明
Original assignee: Guangzhou Junshang Environmental Protection Technology Co ltd
Current assignee: Guangzhou Junshang Environmental Protection Technology Co ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-04-28

Abstract

The invention provides an air compression firecracker which comprises a firecracker body, a piston, a spring, an end cover, a first air pipe connecting hole, a second air pipe connecting hole, an upper air chamber, a lower air chamber, a first sealing ring, a second sealing ring, a first vent hole, a second vent hole and a rubber sleeve, wherein the first air pipe connecting hole is formed in the upper air chamber; the gun body is of a hollow cylinder structure, a stepped groove is formed in the periphery of an opening end of the gun body, a guide hole is formed in the end cover along the axis, the piston is installed in the gun body, one end of the piston is sleeved in the guide hole, the other end of the piston extends into a hollow inner cavity of the gun body, the first vent hole and the second vent hole are communicated with the air guide channel, the rubber sleeve plays a role of a one-way valve, the spring is installed in the upper air chamber, and two ends of the spring respectively press against the end cover and the partition wall, so that the partition wall of the piston abuts against the end face of the opening end of the gun body; the air firecracker of the invention can replace the traditional firecracker, can be repeatedly used and does not pollute the environment.

Description

Compressed air firecracker

Technical Field

The invention relates to the technical field of air compression sound generating devices, in particular to a reusable compressed air firecracker without environmental pollution.

Background

The history of firecrackers is long and popular, the setting off of firecrackers has become an important component of an ceremony held by Chinese nation celebration and celebration, the ceremony supports the common belief and dream of Chinese people all over the world, and has become the traditional culture of Chinese nation; however, most of the conventional explosive firecrackers are on the market at present, the conventional explosive firecrackers are generated on the principle that the air around the firecrackers is vibrated by sudden explosion of the compact explosives in the paper tube of the firecrackers to generate sound, so that a large number of the conventional firecrackers are stacked together in production or transportation and are dangerous, once the traditional firecrackers are exploded, the traditional firecrackers have huge harm once being exploded, and the traditional firecrackers not only seriously pollute the environment but also possibly explode and hurt people and generate fire disasters when being set off; because the traditional firecrackers are disposable consumables and cannot be reused, a large amount of garbage can be left after the firecrackers are set off, the waste of resources is also caused, and the set-off of the traditional explosive firecrackers is forbidden in many cities; the electronic firecrackers which come along with the electronic firecrackers are safe and environment-friendly, but cannot be used at any time and any place due to the limitation of a power supply, and only sound without dynamic state, smoke and smell can not affect the effect brought by the setting off of the firecrackers due to the fact that people cannot feel the holiday atmosphere of setting off the firecrackers.

Disclosure of Invention

In view of the above, the present invention provides a compressed air firecracker which can replace gunpowder in the traditional firecracker, can be reused and does not pollute the environment.

An air compression firecracker comprises a firecracker body, a piston, a spring, an end cover, a first air pipe connecting hole, a second air pipe connecting hole, an upper air chamber, a lower air chamber, a first sealing ring, a second sealing ring, a first vent hole, a second vent hole and a rubber sleeve; the gun body be a hollow cylinder body structure, its one end opening, the other end seals, the open end periphery of gun body form the ladder groove to supply the end cover to cup joint, the end cover cup joint at the open end of gun body, the end cover internal diameter is equivalent with the ladder groove part's of the open end of gun body external diameter, in order to overlap and establish the open end of gun body and be connected to together with the gun body through the screw thread mode, the end cover set up the guide hole along the axle center, the end cover on open along the axial have first trachea connecting hole and second trachea connecting hole, first trachea connecting hole and second trachea connecting hole be located the both sides of guide hole, the perisporium of end cover on radially seted up the explosion mouth, the piston install inside the gun body, the pot head of piston is established in the guide hole, the other end stretches into the hollow inner chamber of gun body, the periphery wall epirelief of piston be equipped with the partition, the partition wall is provided with two stepped sections, the diameter of the first section is equivalent to the inner diameter of the end cover, the diameter of the second section is equivalent to the inner diameter of the gun body, the first section of the partition wall is accommodated in the end cover, the second section of the partition wall is accommodated in the gun body, an upper air chamber is formed between the partition wall and the end wall, a lower air chamber is formed between the partition wall and the closed end of the gun body, the end surface of the open end of the gun body can prevent the piston from sliding towards the closed end of the gun body all the time, the piston is sleeved on one section of the guide hole, the periphery of the end with the larger diameter of the partition wall is provided with a second sealing ring, the periphery of the end with the smaller diameter of the partition wall is provided with a third sealing ring, the center of the piston of the peripheral wall is provided with an air guide channel along the axial direction, the, the first vent hole and the second vent hole are communicated with the air guide channel, so that the upper air chamber is communicated with the lower air chamber, the outlet of the second vent hole is sleeved with a rubber sleeve, the rubber sleeve plays a role of a one-way valve, compressed air in the upper air chamber can flow into the lower air chamber, the compressed air in the lower air chamber cannot flow back into the upper air chamber, the axial diameter of the piston sleeve arranged in the guide hole is slightly smaller than the aperture of the guide hole, so long as the first sealing ring moves to the outer side of the end cover, the compressed air in the upper air chamber can quickly flow out to the atmosphere from a gap between the guide hole and the piston, the spring is arranged in the upper air chamber, and the two ends of the spring respectively press against the end cover and the partition wall, so that the partition wall of the piston abuts against the end face of the opening.

The invention has the following beneficial effects: the firecracker can be repeatedly recycled, a disc of firecrackers can be used for at least one year, and only a certain amount of air needs to be filled before each use; environmental protection, no air pollution and no garbage generation. The energy source of the air firecracker is compressed air, the generated smoke is water mist, the environment cannot be polluted, the fragrance is emitted, and the air firecracker is harmless to human bodies; the safety, no accidental explosion, no fire hazard, no injury to people and no damage to buildings. The air firecrackers are protected by pressure overflow when being inflated, and can automatically overflow when the pressure is inflated to the allowable highest pressure, and give out alarm sound, and at the moment, the inflation is stopped. Explosions at the highest pressures are safe to both humans and buildings. The firecrackers are in a low-pressure state during manufacturing and transportation, so that accidental explosion accidents cannot happen, no explosive exists in a firecrackers factory, and the accidental explosion accidents cannot happen in the production process; the air firecracker has a simple structure, can be flexibly designed, can be painted with various patterns and characters, and has practical use significance and decorative significance; the firecracker has the advantages that the pollution to air is directly reduced during the explosion of firecrackers, the firecrackers cannot cause fire and explosion to hurt people, the firecracker shell can be recycled, the firecracker can be used continuously after being inflated, the firecracker is safer and more environment-friendly, firecrackers with various smells can be customized according to the requirements of customers, a layer of red paper can be sleeved outside the firecracker shell to achieve the effect of being red all over the ground, water is added inside the firecracker, the water mist effect is achieved when the firecracker is exploded out, the luminous material is added to achieve the luminous effect, the firecracker is infinitely close to the firecracker in the using effect, and the firecracker cannot be dangerous and pollute the environment like the traditional firecracker.

Preferred embodiments of the present invention and advantageous effects thereof will be described in further detail with reference to specific embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings, there is shown in the drawings,

FIG. 1 is a schematic cross-sectional view of an air compression firecracker of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

A compressed air firecracker shown in figure 1 comprises a firecracker body 801, a piston 802, a spring 803 and an end cover 804. The gun body 801 is a hollow cylinder structure, one end of the gun body 801 is open, the other end of the gun body is closed, and a stepped groove is formed on the periphery of the open end of the gun body 801 for the end cover 804 to be sleeved. The end cover 804 is sleeved at the opening end of the gun body 801, the inner diameter of the end cover 804 is equivalent to the outer diameter of the stepped groove part of the opening end of the gun body 801, and the end cover 804 is sleeved at the opening end of the gun body 801 and connected with the gun body 801 in a threaded mode. The end cap 804 is provided with a guide hole 806 along the axis. The end cap 804 is axially provided with a first air pipe connecting hole 805 and a second air pipe connecting hole 808, and the first air pipe connecting hole 805 and the second air pipe connecting hole 808 are positioned at two sides of the guide hole 806. The circumferential wall of the end cap 804 is radially provided with an explosion opening 812. The piston 802 is arranged inside the gun body 801, one end of the piston 802 is sleeved in the guide hole 806, and the other end of the piston 802 extends into the hollow inner cavity of the gun body 801. The outer peripheral wall of the piston 802 is convexly provided with a partition wall, the partition wall is provided with two stepped sections, the diameter of the first section is equivalent to the inner diameter of the end cover 804, the diameter of the second section is equivalent to the inner diameter of the gun body 801, the first section of the partition wall is accommodated in the end cover 804 and the second section of the partition wall is accommodated in the gun body 801, an upper air chamber 810 (a left air chamber shown in the figure) is formed between the partition wall and the end wall, a lower air chamber 816 (a right air chamber shown in the figure) is formed between the partition wall and the closed end of the gun body 801, and the end face. A first sealing ring 807 is arranged on the periphery of the section of the piston 802 which is sleeved on the guide hole 806, a second sealing ring 811 is arranged on the periphery of the end with the larger diameter of the partition wall (namely, the end which is matched with the end cover 804), and a third sealing ring 813 is arranged on the periphery of the end with the smaller diameter of the partition wall (namely, the end which is matched with the gun body 801). An air guide channel is axially arranged at the center of the piston 803, a first vent hole 809 is arranged on the outer peripheral wall of a section of the piston 803 correspondingly accommodated in the upper air chamber 810, a second vent hole 815 is arranged on the outer peripheral wall of the section correspondingly accommodated in the lower air chamber 816, the first vent hole 809 and the second vent hole 815 are both communicated with the air guide channel, thereby communicating the upper air chamber 810 with the lower air chamber 816, the outlet of the second vent 815 is sleeved with the rubber sleeve 814, the rubber sleeve 814 plays the role of a one-way valve, so that the compressed air in the upper air chamber 810 can flow into the lower air chamber 816, the compressed air in the lower air chamber 816 can not flow back into the upper air chamber 810, since the axial diameter of the piston 802 that is sleeved in the guide hole 806 is slightly smaller than the diameter of the guide hole 806, the compressed air in the upper air chamber 810 can quickly flow out to the atmosphere from the gap between the guide hole 806 and the piston 802 as long as the first sealing ring 807 moves to the outside of the end cover 804. The spring 803 is installed in the upper air chamber 810, and two ends of the spring 803 respectively press against the end cover 804 and the partition wall, so that the partition wall of the piston 803 abuts against the end face of the opening end of the gun body 801.

When a single firecracker works, the piston 802 is in the state shown in fig. 1 under the action of the elasticity of the spring 803, and the explosion port 812 is arranged between the second sealing ring 811 and the third sealing ring 813. Compressed air is filled from the first air pipe connecting hole 805, the compressed air enters the upper air chamber 810 and the lower air chamber 816 in sequence, and finally the upper air chamber and the lower air chamber are filled with the compressed air, and the air filling is stopped when a set value is reached. When the firecrackers need to explode, the firecrackers are slowly deflated from the second air pipe connecting hole 808, the piston 802 moves leftwards slowly, when the first sealing ring 807 moves to the outer side of the end cover 804, compressed air in the upper air chamber 810 quickly flows out to the atmosphere from a gap between the guide hole 806 and the piston 802, the piston 802 moves leftwards quickly, until the third sealing ring 813 slides over the explosion opening 812, the explosion opening 812 is opened quickly, and the compressed air in the lower air chamber 816 is quickly released into the air to generate explosion sound.

Above scheme all is repeated circulated use, though the structure is a bit complicated, but safety ring protects more, and it also has simpler scheme in fact, directly live compressed air or the plastics parcel for the gas, makes the appearance of firecrackers, is connected to a powder lead wire or electron lead wire, detonates the casing of these good compressed air of parcel or combustible gas one by one with fire or electricity also has the effect of firecrackers, nevertheless can cause solid waste pollution like this, is unfavorable for the environmental protection in the at utmost.

Claims

1. An air compression firecracker comprises a firecracker body, a piston, a spring, an end cover, a first air pipe connecting hole, a second air pipe connecting hole, an upper air chamber, a lower air chamber, a first sealing ring, a second sealing ring, a first vent hole, a second vent hole and a rubber sleeve; the gun body be a hollow cylinder body structure, its one end opening, the other end seals, the open end periphery of gun body form the ladder groove to supply the end cover to cup joint, the end cover cup joint at the open end of gun body, the end cover internal diameter is equivalent with the ladder groove part's of the open end of gun body external diameter, in order to overlap and establish the open end of gun body and be connected to together with the gun body through the screw thread mode, the end cover set up the guide hole along the axle center, the end cover on open along the axial have first trachea connecting hole and second trachea connecting hole, first trachea connecting hole and second trachea connecting hole be located the both sides of guide hole, the perisporium of end cover on radially seted up the explosion mouth, the piston install inside the gun body, the pot head of piston is established in the guide hole, the other end stretches into the hollow inner chamber of gun body, the periphery wall epirelief of piston be equipped with the partition, the partition wall is provided with two stepped sections, the diameter of the first section is equivalent to the inner diameter of the end cover, the diameter of the second section is equivalent to the inner diameter of the gun body, the first section of the partition wall is accommodated in the end cover, the second section of the partition wall is accommodated in the gun body, an upper air chamber is formed between the partition wall and the end wall, a lower air chamber is formed between the partition wall and the closed end of the gun body, the end surface of the open end of the gun body can prevent the piston from sliding towards the closed end of the gun body all the time, the piston is sleeved on one section of the guide hole, the periphery of the end with the larger diameter of the partition wall is provided with a second sealing ring, the periphery of the end with the smaller diameter of the partition wall is provided with a third sealing ring, the center of the piston of the peripheral wall is provided with an air guide channel along the axial direction, the, the first vent hole and the second vent hole are communicated with the air guide channel, so that the upper air chamber is communicated with the lower air chamber, the outlet of the second vent hole is sleeved with a rubber sleeve, the rubber sleeve plays a role of a one-way valve, compressed air in the upper air chamber can flow into the lower air chamber, the compressed air in the lower air chamber cannot flow back into the upper air chamber, the axial diameter of the piston sleeve arranged in the guide hole is slightly smaller than the aperture of the guide hole, so long as the first sealing ring moves to the outer side of the end cover, the compressed air in the upper air chamber can quickly flow out to the atmosphere from a gap between the guide hole and the piston, the spring is arranged in the upper air chamber, and the two ends of the spring respectively press against the end cover and the partition wall, so that the partition wall of the piston abuts against the end face of the opening.