CN211041959U

CN211041959U - Snowflake-shaped display shell

Info

Publication number: CN211041959U
Application number: CN201922182912.6U
Authority: CN
Inventors: 余本友; 余志远; 余培胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-07-17
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a snowflake-imitating fireworks display, wherein the effect element in the fireworks display is an effect lead wire, the effect lead wire is composed of a wrapping layer and a white flash firework drug wrapped by the wrapping layer, and the effect lead wire is provided with a fireproof coating; the display shell is internally provided with an explosive drug and a plurality of effect leads and is filled with a light fireproof filler. After the display shell is launched to lift off and explode, the effect lead is ignited and thrown to the high altitude, intermittent flashing white light spots are formed by the alternate light and shade of the burning of firework powder, and the light spots are bright and visible within 1 kilometer; because the light spots flicker and are in a moving state at high altitude, the light spots do not need to be made into a U-shaped roll shape or a circular ring shape, and the shape of each light spot is similar to the shape of snowflakes falling; a large number of light spots can form a vivid snowflake flying effect in the vision of audiences; the preparation and installation are simple and easy; the production cost is low.

Description

Snowflake-shaped display shell

Technical Field

The utility model relates to a display shell.

Background

The effect piece is formed by the process of manufacturing pyrotechnic composition or a single body containing the pyrotechnic composition, and comprises a powder grain, a powder column, a powder block, a powder ball and other bare powder effect pieces; non-naked drug effect components such as drug bag, effect inner barrel and effect lead. The effect lead consists of an outer cladding and firework powder wrapped by the outer cladding, and can be produced by automatic equipment (a lead machine) by adopting the same preparation process as a firework lead (a firing cable for ignition and fire transmission). The finished product of lead machining is rectangular form lead, and the rolling is reserve, cuts into suitable length as required and uses.

The effect lead wire is light in body and has certain self-generated power during combustion, so that the lead wire has longer dead time and is easy to form the effect of floating and falling, and the lead wire is often used for manufacturing the effect of simulating floating and falling in combined firework products, such as the effects of falling leaves, floating flowers, floating snow and the like. As in the patent literature: the bulletin No. CN201311243Y discloses a colorful fallen leaves model combined firework; the bulletin No. CN201311242Y discloses a safflower fallen leaf special-shaped combined firework; "snowing flying fireworks" disclosed in bulletin No. CN 201575755U; "Piaoju fireworks" disclosed in bulletin No. CN200944023Y, etc.

The disadvantages of the prior art are that:

first, the application of the effect of the artificial falling setting off of the effect lead in the existing fireworks is only limited to the combined fireworks, especially the small fireworks products, but not to the fireworks shell products, and the above patent documents are all applied to the combined fireworks.

Because the parameters such as the emission height of the two types of products are different (see the safety technical code for setting off large fireworks-GB 24284-2009): according to the specification of the projectile body and the caliber of the launching tube, the lift-off height of the display shell is 90-260 meters, the covering radius is different from 25-30 meters to 95-105 meters, and the minimum safety distance of audiences is different from 100-300 meters; the small fireworks have the lift-off height of about 10-60 meters, and the minimum safety distance of the audience is 50 meters. The difference results in a large difference in viewer appreciation distance between the two types of fireworks.

Meanwhile, the existing effect lead mainly burns the medicine, so that the burning effect is difficult to appreciate by audiences with small medicine loading, small luminescence, poor brightness and large distance. Therefore, the effect lead is only suitable for the low-altitude close-range setting off of combined fireworks (small fireworks).

Secondly, in the application of the floating-imitation burning effect of the existing effect lead, the effect lead needs to be manually made into a U-shaped roll shape or a circular ring shape one by one, so that the effect lead is rotated in the air by means of combustion and injection of the bulk drug, and the shapes of falling leaves, floating flowers, floating snow and the like can be formed by means of rotation; the imitation of the falling effect can be formed only by means of rotation, which leads to increased manufacturing difficulty. A small amount of application in the combined fireworks can be accepted, but the loading capacity of the display shell is large, the coverage is wide, the number of the effect pieces is far greater than that of the combined fireworks, and the display shell manufacturer is difficult to accept under the practical condition of high labor cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model aims to solve the technical problem that an effect lead wire suitable for a display shell is provided, and a setting off effect simulating snowflake falling can be generated. In order to solve the technical problem, the utility model adopts the technical scheme that the snowflake-shaped display shell comprises a display shell body and is characterized in that an effect piece in the display shell body is an effect lead, the effect lead is composed of a white flash firework drug wrapped by an outer wrapping layer and the outer wrapping layer thereof, and the effect lead is provided with a fireproof coating; the display shell is internally provided with an explosive drug and a plurality of effect leads and is filled with a light fireproof filler.

Preferably, the effect lead is not U-coil or toroid shaped.

The white flash pyrotechnic charge of the effect lead may be selected from one of the following formulations:

the formula A comprises 30-70 parts of barium sulfate or barium nitrate; 5-20 parts of potassium nitrate or ammonium perchlorate, 3-10 parts of strong rubber powder, 15-35 parts of aluminum-magnesium alloy powder and 5-20 parts of sulfur;

the formula B comprises, by weight, 95-105 parts of barium nitrate, 6-10 parts of aluminum powder, 4-6 parts of potassium nitrate, 4-6 parts of sulfur and 8-12 parts of magnesium powder;

the formula C comprises, by weight, 85-120 parts of barium nitrate, 15-35 parts of aluminum magnesium alloy powder, 4-6 parts of potassium dichromate and 4-5 parts of magnesium powder;

the powder firework explosive is uniformly mixed according to a general method, a finished product processed by adopting a lead making device is a strip-shaped lead wire which is rolled for standby, the strip-shaped lead wire is cut into an effect lead wire with a proper length for use, and the effect lead wire is loaded into an inner cavity of a display shell according to an installation method of an effect piece of the display shell without being made into a U-shaped roll shape or a circular ring shape. Preferably, one end of the effect lead is adhered with a priming or inserted with a fire-transmitting lead. In the case of large-scale use in display shells, ignition of the effect lead is ensured.

The ignition charge is a pyrotechnic charge with a low ignition point.

The utility model has the advantages that after the display shell is launched to lift off and explode, the effect lead wire is ignited and thrown out at high altitude, the burning light and shade of the firework powder alternately form intermittent flashing white light spots which are bright and visible within 1 kilometer; because the light spots flicker and are in a moving state at high altitude, the light spots do not need to be made into a U-shaped roll shape or a circular ring shape, and the shape of each light spot is similar to the shape of snowflakes falling; a large number of light spots can form a vivid snowflake flying effect in the vision of audiences; the preparation and installation are simple and easy; the production cost is low.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Drawings

Fig. 1 is a schematic structural diagram of a display shell according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of an effect lead according to embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of a display shell according to embodiment 2 of the present invention;

fig. 4 is a schematic structural diagram of an effect lead according to embodiment 2 of the present invention.

Detailed Description

Embodiment 1, refer to fig. 1 and 2, and reflect the utility model discloses a concrete structure, snowflake-shaped display shell includes the display shell body that first spherical shell 5, second spherical shell 2 constitute, and this internal effect spare of display shell is effect lead wire 1, and effect lead wire 1 comprises surrounding layer 102 and firework powder 101 that surrounding layer 102 wrapped up, be equipped with fire protection coating on the surrounding layer 102 of effect lead wire 1. One end of the effect lead 1 is inserted into the ignition lead 103. The effect lead 1 need not be formed in a U-roll or circular ring shape.

In the example, the pyrotechnic composition of the effect lead wire comprises 50 parts of barium sulfate or barium nitrate; 10 parts of potassium nitrate or ammonium perchlorate, 6 parts of strong glue powder, 24 parts of aluminum magnesium alloy powder and 10 parts of sulfur. The powder firework explosive is uniformly mixed according to a general method, a finished product processed by adopting a lead making device is a strip-shaped lead, the lead is rolled for standby, the strip-shaped lead is cut into an effect lead with a proper length for use, and the effect lead is loaded into an inner cavity of a display shell according to an installation method of an effect piece of the display shell: the explosive 3 is arranged in the middle of the shell of the display shell, a large number of effect leads 1 are distributed around the circumference of the explosive 3, and the periphery of the effect leads 1 is filled with light fireproof fillers 4 (such as chaff and cottonseed hulls).

Embodiment 2, see fig. 3 and 4, reflects another specific structure of the present invention, and is different from embodiment 1 in that:

1. one end of the effect lead 9 consisting of the outer cladding 902 and the pyrotechnic charge 901 wrapped by the outer cladding 902 is adhered with the priming charge 903, and the fire-transmitting lead is not inserted. The fire-inducing medicine consists of potassium nitrate, carbon powder and sulfur.

2. The first shell 6 of the display shell is internally provided with explosive, and the periphery of the first shell is filled with light fireproof filler 7; a plurality of effect leads 9 are arranged in the second spherical shell 8, and the peripheries of the effect leads 9 are filled with light fireproof fillers 7.

3. In the example, the pyrotechnic composition of the effect lead comprises, by weight, 100 parts of barium nitrate, 8 parts of aluminum powder, 5 parts of potassium nitrate, 5 parts of sulfur and 10 parts of magnesium powder. Preferably, the aluminum powder is aluminum powder subjected to bright anodic oxidation treatment.

Example 3, the difference from example 1 is that: in the example, the firework powder for the effect lead comprises, by weight, 100 parts of barium nitrate, 25 parts of aluminum-magnesium alloy, 5 parts of potassium dichromate and 3 parts of magnesium.

The foregoing embodiments are merely for clarity of explanation, and are not to be construed as limiting the present invention. The utility model discloses have known multiple substitution or warp in this technical field, do not deviating from the utility model discloses under the prerequisite of essence meaning, all fall into the utility model discloses a protection scope.

Claims

1. A snowflake-shaped display shell comprises a display shell body and is characterized in that an effect piece in the display shell body is an effect lead, the effect lead is composed of an outer cladding and a white flash firework drug wrapped by the outer cladding, and the effect lead is provided with a fireproof coating; the display shell is internally provided with an explosive drug and a plurality of effect leads and is filled with a light fireproof filler.

2. The snowflake-shaped display shell according to claim 1, wherein the effect lead is not in the shape of a U-roll or a circular ring.

3. The snowflake-shaped display shell according to claim 1 or 2, wherein one end of the effect lead is adhered with a priming agent or inserted with a fire-transmitting lead.