CN2665653Y

CN2665653Y - Emitter major structure of rocket firework

Info

Publication number: CN2665653Y
Application number: CN 200320103882
Authority: CN
Inventors: 刘玉海; 耿毅敏; 张文超; 焦军来; 陈星�
Original assignee: CHINA BEIFANG CHEMICAL INDUSTRY CORP
Current assignee: CHINA BEIFANG CHEMICAL INDUSTRY CORP
Priority date: 2003-11-10
Filing date: 2003-11-10
Publication date: 2004-12-22
Anticipated expiration: 2013-11-10

Abstract

The utility model relates to an emitter body of rocket fireworks, which is provided with a cylinder-shaped emitter shell. Four empennage clamping grooves are arranged at angles, such as the tail part of the outer side of the emitter shell, etc.; an empennage is clamped on each clamping groove. The empennage is a flaky body which basically forms a triangular, a clamping which is clamped with each clamping groove on the shell is arranged on one side of each empennage. The interior of the emitter shell forms a funnel shape from top to bottom, the bottom of the cylinder-shaped emitter shell is provided with a trumpet-shaped through hole which is an emitter nozzle, and the nozzle is coaxial with the cylinder-shaped emitter shell; a spray throat barrier sheet is coaxially arranged between the emitter nozzle and the funnel bottom of an emitter inner cavity, and the spray throat barrier sheet is a circular sheet of which the center is provided with a circular hole. The interior of the emitter is provided with a propellant powder column and a delay element, and a triangular powder barrier plate is arranged between the powder column and the emitter nozzle; lighting devices are arranged between the propellant powder column and the delay element and on the center of the propellant powder column; the center of each lighting device is extended with a blasting fuse. The delay element is a circular flaky body, the center of the delay element is provided with a thin through hole, and the upper and the lower surfaces of the circular sheet are respectively provided with two grooves with different diameters.

Description

A kind of transmitter agent structure of rocket firework

Technical field

The utility model relates to a kind of firework launcher agent structure, relates in particular to a kind of transmitter agent structure of smokeless rocket fireworks.

Background technology

The dispensing fireworks are people, and especially Chinese people are holding activity, expressing a kind of important mode that the heart emotion adopts often, and are with a long history.And fireworks itself are along with progress of science and technology also presents various forms.But take a broad view of whole fireworks, its basic structure is to be assembled in the paper web with propellant powder and effect medicine, by lighting the medicine in the fuse ignition tube.Can reach multicoloured effect by the component that changes medicine in the tube.But fireworks structure commonly used now can only satisfy general visual effect when dispensing, for desiring to represent specific pattern aloft, then is difficult to realize.Its main cause is that fireworks structure at present commonly used makes people uncontrollable its lift-off height and aloft residing angle and direction when dispensing, thereby can't or be difficult to realize skyborne moulding.In addition, used fireworks tube is owing to make of paper, and its pressure that can bear is very limited.

The utility model purpose

The purpose of this utility model is to provide a kind of transmitter agent structure of rocket firework, the transmitter main body novelty of this structure, attractive in appearance, and compact conformation can artificially be controlled its lift-off height and can bear bigger pressure.

For achieving the above object, the transmitter main body of the rocket firework that the utility model provides has a tubular transmitter housing, is provided with four empennage draw-in grooves to transmitter hull outside afterbody equal angles, blocks respectively on each draw-in groove and establishes an empennage.Empennage is the plates that are substantially triangular in shape, and has trip on the one side, fastens with draw-in groove on the housing.

Enclosure interior is infundibulate from top to bottom, and a horn-like perforation is arranged at the bottom is the transmitter spout, and this spout is coaxial with housing; Be coaxially installed with a spray larynx catch between transmitter spout and the transmitter inner chamber funnel bottom, this catch is the disk that there is a circular hole at the center.

Propellant charge and delay element are equipped with in transmitter inside, wherein are equipped with a grate triangular in shape between powder column and the transmitter spout, establish between powder column and the delay element and igniter is equipped with at the powder column center; This igniter is formed by igniter cartridge, cotton paper and plastic paper wrapping, and a fuse is extended at the igniter center.

Delay element is a round sheet body, and its center is a thin through hole, and the upper and lower faces of disk has the different groove of two diameters respectively, and this groove is as the dress delay powder.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is the utility model transmitter shell structure schematic diagram.

Fig. 3 is the utility model tail structure schematic diagram, and wherein a is a front view, and b is a lateral plan.

Fig. 4 is the texture edge schematic diagram of the utility model spray larynx catch.

Fig. 5 is the texture edge schematic diagram of the utility model delay element.

Fig. 6 is a grate structural representation of the present utility model.

Fig. 7 is at igniter structural representation of the present utility model.

The specific embodiment

Please refer to Fig. 1, the transmitter main body 1 of the rocket firework that the utility model provides has a tubular transmitter housing 10, because the propellant powder in the housing is set up the atmospheric pressure that smooth combustion needs about 60, so require the transmitter housing should be able to bear corresponding pressure, housing can select for use materials such as strengthening polypropylene or fiberglass to make, to reach above-mentioned requirements, present embodiment is to be made with fiberglass.

Housing 10 inside are infundibulate from top to bottom, and a horn-like perforation is arranged at the bottom is transmitter spout 11, and housing 10 opening end inboards are provided with screw thread 101 and (consult Fig. 2 a).This spout 11 is coaxial with housing 10, the gas flow in the time of can guaranteeing the enclosure interior normal combustion; Can control the required pressure of propellant powder smooth combustion by transmitter spout 11 sizes; Be coaxially installed with a spray larynx catch 12 between transmitter spout 11 and the transmitter inner chamber funnel bottom, this catch 12 has the disk of a circular hole 121 for the center, and this spray larynx catch 12 directly is injected into the design attitude in the transmitter when injection moulding making transmitter main body 1.Relevant spray larynx catch 12 can be consulted Fig. 4, is the side view of this catch 12.

Be provided with four empennage draw-in grooves 13 (consulting Fig. 2 b) to transmitter housing 10 outside afterbody equal angles, block respectively on each draw-in groove and establish an empennage 14.Empennage 14 plates for being substantially triangular in shape have trip 141 on the one side, fasten with draw-in groove 13 on the housing 10, guarantee that transmitter can stabilized flight.Relevant empennage 14 can be consulted Fig. 3 a, b.

Propellant charge 15 and delay element 16 are equipped with in transmitter inside.Wherein be equipped with a grate 17 triangular in shape between powder column 15 and the transmitter spout 11, to prevent since during propellant combustion powder column softening, and stop up transmitter spout 11.This grate 17 is that a thinner metal bar (such as iron wire) is bent into triangle (consulting Fig. 6).Be provided with igniter 18 between powder column 15 and the delay element 16, light to guarantee that propellant is normal, stable.This igniter 18 has an ignition charge box 181, in ignition charge 182 is housed, the outside wrapping with cotton paper and plastic paper 183 of medicine box 181 forms, ignition charge 182 links to each other with an overhanging fuse 184.

Delay element 16 is the devices (concrete structure sees also Fig. 5) of effect medicine of igniting when guaranteeing that propellant combustion stops, it is a round sheet body, its center is a thin through hole 161, the upper and lower faces of disk has two groups of grooves 162 that diameter is different respectively, this groove is as the dress delay powder, its shape can increase delay powder in the course of the work to compression shock resistance property, guarantees the smooth biography fire of delay powder, and guarantees to have certain ignition ability.

Because its component of the used delay powder of rocket firework is certain, then pass through the length of the THICKNESS CONTROL defer time of change delay element 16.For the certain delay powder of component, its linear combustion speed is definite value, and the length of burning time promptly determines that by the fire distance of wearing of delay powder this wears the fire distance is exactly all groove thickness sum.According to this principle, when making delay element, injection moulding, preestablishes the delay element of several different sizes, to be applicable to the rocket firework of different lift-off height according to the requirement of master-plan to delay time.When making delay element, the extension dose of packing in having the delay element of certain size can guarantee to be unanimity, can guarantee that delay powder compact structure in the delay element, density are even, thereby realizes the precision of control defer time.The periphery of delay element 16 is provided with screw thread 164, is screwed and fits together with the internal thread 101 with housing 10.The plane of delay element 16 is provided with at least two parallel semicircle shrinkage pools 163, so that utilize jig to assemble.

By after the above-mentioned assembling, what the effect medicine was housed lights propellant through fuse cord, propellant combustion produces a large amount of hot gas, the interior gas of transmitter with certain pressure is outside jet pipe ejection transmitter, promptly transmitter is done work, make transmitter obtain thrust, the firework effect medicine will be housed partly send into design height or precalculated position.Propellant combustion is lighted the delay powder of delay element through igniter, refires to burn the effect medicine.Because wearing of delay element is fiery apart from being through predefined, therefore whole fireworks can be in predetermined space explosion.Because the transmitter main body is equipped with empennage, can guarantee that fireworks are by predetermined direction emission again.

Claims

1, a kind of transmitter main body of rocket firework is characterized in that:

One tubular transmitter housing is provided with four empennage draw-in grooves to this hull outside afterbody equal angles, blocks respectively on each draw-in groove and establishes an empennage;

Enclosure interior is infundibulate from top to bottom, and the transmitter spout is arranged at the bottom, is coaxially installed with a spray larynx catch between transmitter spout and the transmitter inner chamber funnel bottom, and this catch is the disk that there is a circular hole at the center;

Propellant charge and delay element are equipped with in transmitter inside, are equipped with a grate triangular in shape between powder column and the transmitter spout;

Be provided with igniter between powder column and the delay element, this igniter has an ignition charge box, and ignition charge is housed in the box, and ignition charge links to each other with an overhanging fuse;

Delay element is a round sheet body, and its center is a thin through hole, and the upper and lower faces of disk has the different groove of two diameters respectively.

2, transmitter main body as claimed in claim 1 is characterized in that, described empennage is a triangle sheet body, has trip on the one side, fastens with draw-in groove on the housing.

3, transmitter main body as claimed in claim 1 is characterized in that, described transmitter spout is one horn-like.

4, transmitter main body as claimed in claim 1 is characterized in that, described transmitter spout is coaxial installation with housing.

5, transmitter main body as claimed in claim 1 is characterized in that, described grate is that metal bar is bent into.

6, transmitter main body as claimed in claim 1 is characterized in that, described igniter cartridge is outside with cotton paper and plastic paper wrapping.