CN207487515U - A kind of combined firework with drug groove - Google Patents

Abstract

The utility model is related to a kind of combined fireworks with drug groove, the bottom of each tubular housing, which is equipped with, to be used for improving the drug groove that intensity is concentrated in gunpowder transmitting, the bottom surface of the drug groove is equipped with vent, the vent is through-hole, the bottom surface of the fireworks ontology is equipped with groove of igniting, the vent is connected with the groove of igniting of fireworks ontology bottom surface, filled with slip casting medicine in the vent and groove of igniting.The utility model solves the problems, such as that emissivity is not concentrated during firework display, direction is unstable.

Description

A kind of combined firework with drug groove

Technical field

The utility model is related to fireworks technical fields, and in particular to a kind of combined firework with drug groove.

Background technology

Existing combined firework is generally made of paper reels, is made of slurry compression molding or noted using plastics Molding making is moulded, combined firework after molding is generally prism, cylinder etc..It is parallel on the ontology of combined firework to be uniformly distributed There are several tubular housings, tubular housing upper port opens, lower port closing, fireworks inner tank and propellant built in tubular housing. The vent through ontology bottom surface is opened up in the blind end of tubular housing, fire is led in bottom surface equipped with connection vent bottom opening Line, blasting fuse are connect with the lead in each vent, are ignited the transmitting built in above described tubular cavity by the lead in vent Gunpowder.

This combined firework has the following disadvantages：（1）Propellant in tubular housing is not concentrated, and gunpowder more disperses, It is unevenly distributed in the bottom of tubular housing, the consumption of propellant is big, of high cost, to the work of bottom when propellant is lighted Big with area, the active force for pushing up fireworks inner tank is smaller, influences the transmitting height of the effect part inside fireworks inner tank and inner cylinder Degree；（2）Fireworks inner tank built in tubular housing can roll in emission process, and launching track easily deviates projected route, Often occur course deviation in emission process, influence firework display effect, seriously affect the directionality and safety of firework display Property, it be easy to cause personnel's injury and the generation of fire.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of novel group with drug groove Close fireworks.

The utility model uses following technical scheme：

A kind of combined firework with drug groove, includes the fireworks ontology of several outer barrels composition, and the inside of each outer barrel is equal Equipped with tubular housing, the tubular housing upper port opens, lower port closing, fireworks inner tank and gunpowder built in tubular housing, institute The bottom for stating each tubular housing is equipped with the drug groove for being used for improving gunpowder transmitting concentration intensity, the bottom surface of the drug groove Equipped with vent, the vent is through-hole, and the bottom surface of the fireworks ontology is equipped with groove of igniting, the vent and fireworks sheet The groove of igniting of body bottom surface is connected.

Further, the drug groove is cone-shaped groove or cylinder shape groove or ellipsoid groove or hemispherical Groove or square groove or the combination slot being composed of multiple grooves, the drug groove is from the bottom surface of the tubular housing It is recessed to the bottom surface direction of fireworks ontology, the upper end opening of the drug groove is located on the bottom surface of the tubular housing.

Further, the drug groove is made of upper groove and lower groove, and the upper groove is located at the top of lower groove And the two is connected as a single entity, the upper end opening of the lower groove is located on the bottom surface of the upper groove, the bottom surface face of the upper groove Product is more than the upper end opening area of the lower groove, in the connection of the bottom surface of the upper groove and the upper end opening of the lower groove Place forms second step, and the upper end opening of the upper groove is located on the bottom surface of the tubular housing, in the tubular housing Bottom surface and the upper end opening junction of the upper groove form first step, and the side of the upper groove and the side of lower groove are equal For inclined surface, the bottom surface or side of the lower groove are equipped with vent.

Further, the first step and/or second step are equipped with the transmitting for being used for that gunpowder rotation is made to rise transmitting Stablize groove, groove is stablized in the transmitting there are several, is evenly distributed on the first step and/or second step.

Further, it is spiral grooves that groove is stablized in the transmitting, is uniformly set on the first step and/or second step There are several spiral grooves, the spiral grooves deviate radial direction edge and are distributed in the first step clockwise or counterclockwise And/or on second step, the cross-sectional shape of the spiral grooves is semicircle, half elliptic, triangle, rectangle, pros Any one in shape, waveform.

The utility model has the beneficial effect that：

（1）It is recessed that the utility model is equipped with the drug for being used for improving gunpowder transmitting concentration intensity in the bottom of each tubular housing Slot, the drug groove are made of upper groove and lower groove, and the upper groove is located at the top of lower groove and the two is connected as a single entity, The upper end opening of the lower groove is located on the bottom surface of the upper groove, and the base area of the upper groove is more than the lower groove Upper end opening area, form second step in the junction of the bottom surface of the upper groove and the upper end opening of the lower groove, The upper end opening of the upper groove is located on the bottom surface of the tubular housing, in the bottom surface of the tubular housing and the upper groove Upper end opening junction form first step, the bottom surface or side of the lower groove are equipped with vent.The utility model Drug groove is combined type groove, and the propellant being filled in combined type groove is made more to concentrate, anxious when propellant burns The high-temperature gas of play expansion is to emitting the active area smaller in hole, active force is more concentrated, and the transmitting pressure on unit area is more Greatly, firing altitude higher when fireworks inner tank is seted off, faster, firework display effect is more preferable for emission rate.It can not only efficiently reduce Gunpowder dosage reduces fireworks production cost, and it is poor cylinder, safety excessively can easily to be fried to avoid existing combined firework gunpowder The problem of.

（2）The utility model is equipped with the hair for being used for that gunpowder rotation is made to rise transmitting on first step and/or second step Stable groove is penetrated, described emit stablizes groove as spiral grooves, and the spiral grooves deviate radial direction along the clockwise or inverse time Needle rotation is distributed on the first step and/or second step, and the cross-sectional shapes of the spiral grooves is semicircle, half ellipse Any one in circle, triangle, rectangle, square, waveform.After propellant is lighted, gunpowder is recessed in combined type Flash fire is concentrated in slot, under the action of groove is stablized in the transmitting on first step and/or second step, high temperature gas flow is drastically Spiral escalation makes fireworks inner tank rise clockwise or counterclockwise in tubular housing, forms gyro rotation effect, due to The axial property of gyroscope makes fireworks inner tank that left and right deflection and rolling will not occur, and high directivity, stability are good, prevent fireworks There is course deviation in emission process in inner cylinder, eliminate influence firework display effect and firework display safety it is uncertain because Element improves firework display effect and firework display security performance.

Description of the drawings

Fig. 1 is the appearance overall structure diagram of embodiment 1.

Fig. 2 is the cross-sectional view of embodiment 1.

Fig. 3 is the structure diagram of the ontology bottom surface of embodiment 1.

Fig. 4 is the appearance overall structure diagram of embodiment 2.

Fig. 5 is the cross-sectional view of embodiment 2.

Fig. 6 is the partial enlarged view at A in Fig. 5.

Fig. 7 is the vertical view of tubular housing bottom structure.

In attached drawing：1-ontology, 2-tubular housing, 3-frame, 4-gas pressure relief slot, 5-lateral grooves, 6-first step, 7-circle paper cake, 8-drug groove, 9-vent, 10-groove of igniting, the stable groove of 11-transmitting, 12-upper groove, 13-lower groove, 14-second step, the bottom surface of 15-ontology.

Specific embodiment

The utility model is described further below in conjunction with the accompanying drawings.

Embodiment 1

As shown in Figure 1, Figure 2, Figure 3 shows, this is that one kind 25 sends out combined firework, using overall time die press technology for forming system Make or using injection molding.The combined firework is included in ontology 1, parallel equally distributed 25 pipes on ontology 1 Shape cavity 2, the upper port of tubular housing 2 open, lower port closing, fireworks inner tank and propellant built in tubular housing 2.Ontology Bottom surface 15 the frame 3 for being surrounded by protrusion, frame 3 be equipped with multiple gas pressure relief slots 4.The side of ontology 1 is equipped with lateral grooves 5。

The bottom of each tubular housing 2, which is equipped with, to be used for improving the drug groove 8 that intensity is concentrated in gunpowder transmitting, and the drug is recessed Slot 8 is for cone-shaped groove or cylinder shape groove or ellipsoid groove or hemispherical groove or square groove or by multiple recessed The combination slot that slot is composed.As preferably one of, the drug groove 8 be cone-shaped groove or cylinder shape groove.

Vent 9 there are two being set in the bottom surface of lower groove 13, two vents 9 are the through-hole of taper.The vent 9 Upper end opening be located at the bottom surface of lower groove 13, the lower ending opening of the vent 9 is located at the bottom surface of lead groove, vent 9 Upper end opening it is small, the lower ending opening of vent 9 is big.

The bottom surface 15 of the fireworks ontology is equipped with groove 10 of igniting, groove 10 and the medicine of 2 bottom of tubular housing of igniting Vent 9 in object groove 8 is connected.The groove 10 of igniting can be individual groove, such as individual kidney-shaped groove or long The groove of square groove or other shapes, or the strip of an entirety formed of being connected by multiple individual grooves Groove.The groove 10 of igniting is filled with blasting fuse or ignition powder.

Embodiment 2

As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, this is a kind of 100 without lead combined firework, is molded using overall time Moulding process makes or using injection molding.The combined firework, is included in ontology 1, on the ontology 1 it is parallel uniformly 100 tubular housings 2 of distribution, the upper port of tubular housing 2 open, lower port closing, fireworks inner tank built in tubular housing 2 and Propellant.The frame 3 for being surrounded by protrusion of the bottom surface 15 of ontology, frame 3 are equipped with multiple gas pressure relief slots 4.The side of ontology 1 Equipped with lateral grooves 5.

The bottom of each tubular housing 2, which is equipped with, to be used for improving the drug groove 8 that intensity is concentrated in gunpowder transmitting, and the drug is recessed Slot 8 is for cone-shaped groove or cylinder shape groove or ellipsoid groove or hemispherical groove or square groove or by multiple recessed The combination slot that slot is composed.As preferably one of, the drug groove 8 is made of upper groove 12 and lower groove 13, upper groove 12 are connected as a single entity positioned at the top of lower groove 13 and the two, and the upper end opening of lower groove 13 is located at the bottom surface of the upper groove 12 On, the base area of upper groove 12 is more than the upper end opening area of the lower groove 13.

Second step 14, the upper groove are formed in the bottom surface of upper groove 12 and the junction of the upper end opening of lower groove 13 12 upper end opening is located on the bottom surface of the tubular housing 2, in the upper of the bottom surface of the tubular housing 2 and the upper groove 12 End opening junction forms first step 6.The side of the upper groove 12 and the side of lower groove 13 for inclined surface or perpendicular to The cylindrical surface of bottom surface.

It is steady that the transmitting for being used for that gunpowder rotation is made to rise transmitting is equipped on the edge of first step 6 and/or second step 14 Determine groove 11, groove 11 is stablized in the transmitting there are several, is evenly distributed on the first step 6 and/or second step 14. Described emit stablizes groove 11 as spiral grooves, and the spiral grooves have several, deviates radial direction along the clockwise or inverse time Needle rotation is distributed on the first step 6 and/or second step 14, the cross-sectional shapes of the spiral grooves for it is semicircle, Any one in half elliptic, triangle, rectangle, square, waveform.Preferably, spiral grooves and first step 6 And/or the cross section of one end that second step 14 connects is maximum, is then gradually reduced, until the other end of spiral grooves narrows down to Until a bit.

The propellant of combined firework is filled in the upper groove 12 of drug groove 8 in lower groove 13, making propellant It is concordant with the upper end opening of upper groove 12, then in the round paper cake 7 in one, 6 upper berth of first step, then placed on round paper cake 7 Fireworks inner tank.When the propellant in upper groove 12 and lower groove 13 is ignited, propellant flash fire, in groove and the Under the action of groove 11 is stablized in the transmitting that the edge of one step 6 and/or second step 14 is uniformly arranged, the High Temperature Rotating gas of generation Stream and spiral explosion wave, making fireworks inner tank, fireworks inner tank is being sent out along to emitting clockwise or counterclockwise and upwards Stage formation gyro rotation effect is penetrated, due to the axial property of gyroscope, makes fireworks inner tank that left and right deflection and rolling will not occur, High directivity, stability are good, solve the problems, such as that existing fireworks inner tank occurs rolling in emission process and course deviation, improve Firework display effect and firework display security performance.

Vent 9 there are two being set in the bottom surface of lower groove 13, two vents 9 are the through-hole of taper.The vent 9 Upper end opening be located at the bottom surface of lower groove 13, the lower ending opening of the vent 9 is located at the bottom surface of lead groove, vent 9 Upper end opening it is small, the lower ending opening of vent 9 is big.Preferably, in order to improve in the ignition charge in vent 9 and lower groove 13 Propellant contact reliability, and also to improve the binding force between ignition charge and vent 9, adhesive force, drawing Compression molding may be used in the surrounding of the upper end opening of fire hole 9 or the mode of drilling sets several fire-guiding channels, and the fire-guiding channel can Think with triangular groove or square trench or the groove of other shapes.As further preferred, several fire-guiding channels can The surrounding of the upper end opening of vent 9 is arranged in the way of clockwise or counterclockwise, further to strengthen in lower groove 13 The helicity of high temperature gas flow that propellant generates when burning makes fireworks inner tank form gyro rotation effect in launching phase.

As shown in figure 5, the bottom surface 15 of the fireworks ontology is equipped with groove 10 of igniting, groove 10 and the tubular housing of igniting Vent 9 in the drug groove 8 of 2 bottoms is connected.The groove 10 of igniting can be individual groove, such as individual kidney-shaped The groove of groove or rectangular recess or other shapes, or the entirety formed of being connected by multiple individual grooves Strip-shaped groove.The groove 10 of igniting is filled with blasting fuse or ignition powder.

Claims (5)

1. a kind of combined firework with drug groove includes the fireworks ontology of several outer barrels composition, the inside of each outer barrel is all provided with There is tubular housing, the tubular housing upper port opens, and lower port closing, fireworks inner tank and gunpowder built in tubular housing are special Sign is：The bottom of each tubular housing, which is equipped with, to be used for improving the drug groove that intensity is concentrated in gunpowder transmitting, the drug The bottom surface of groove is equipped with vent, and the vent is through-hole, and the bottom surface of the fireworks ontology is equipped with groove of igniting, described to ignite Hole is connected with the groove of igniting of fireworks ontology bottom surface.

2. a kind of combined firework with drug groove according to claim 1, it is characterised in that：The drug groove is circle Conical socket or cylinder shape groove or ellipsoid groove or hemispherical groove or square groove or combined by multiple grooves and Into combination slot, the drug groove from bottom surface direction from the bottom surface of the tubular housing to fireworks ontology recess, the drug The upper end opening of groove is located on the bottom surface of the tubular housing.

3. a kind of combined firework with drug groove according to claim 2, it is characterised in that：The drug groove is by upper Groove is formed with lower groove, and the upper groove is located at the top of lower groove and the two is connected as a single entity, and the upper end of the lower groove is opened Mouth is located on the bottom surface of the upper groove, and the base area of the upper groove is more than the upper end opening area of the lower groove, The bottom surface of the upper groove and the junction of the upper end opening of the lower groove form second step, and the upper end of the upper groove is opened Mouth is located on the bottom surface of the tubular housing, in the bottom surface of the tubular housing and the upper end opening junction shape of the upper groove Into first step, the bottom surface or side of the lower groove are equipped with vent.

4. a kind of combined firework with drug groove according to claim 3, it is characterised in that：The first step and/ Or second step is equipped with the transmitting for being used for that gunpowder is made to rotate rising transmitting and stablizes groove, the stable groove of transmitting has several It is a, it is evenly distributed on the first step and/or second step.

5. a kind of combined firework with drug groove according to claim 4, it is characterised in that：Groove is stablized in the transmitting For spiral grooves, several spiral grooves are uniformly provided on the first step and/or second step, the spiral grooves deviate half Diameter direction edge is distributed in clockwise or counterclockwise on the first step and/or second step, the horizontal stroke of the spiral grooves Cross sectional shape is any one in semicircle, half elliptic, triangle, rectangle, square, waveform.