CN-224230855-U - Bio-based polymeric material spray cylinder

CN224230855UCN 224230855 UCN224230855 UCN 224230855UCN-224230855-U

Abstract

The utility model discloses a bio-based polymeric material spraying cylinder, which belongs to the technical field of firework cylinders and comprises a cylinder body, wherein a first inner cavity and a second inner cavity are formed in the cylinder body, a plug is arranged at one end of the first inner cavity, the other end of the first inner cavity is communicated with the second inner cavity, a fire spraying port is formed in the plug, the first inner cavity is communicated with the outside through the fire spraying port, the thickness of the side wall of the first inner cavity is larger than that of the side wall of the second inner cavity, the second inner cavity is used for filling mud bottoms, the first inner cavity is used for filling firework effect powder, and the first inner cavity is connected with the fire spraying port through a horn-shaped connecting port. The utility model is used for solving the problem of barrel explosion when the firework barrel is set off.

Inventors

WANG XUEFENG
XIE WANBIN

Assignees

湖南熙亚图新材料有限公司

Dates

Publication Date: 20260512
Application Date: 20250621

Claims (8)

1. The bio-based polymeric material spraying cylinder is characterized by comprising a cylinder body, wherein a first inner cavity and a second inner cavity are arranged in the cylinder body, one end of the first inner cavity is provided with a plug, the other end of the first inner cavity is communicated with the second inner cavity, a fire spraying port is formed in the plug, the first inner cavity is communicated with the outside through the fire spraying port, the inner diameter of the first inner cavity is smaller than that of the second inner cavity, the thickness of the side wall of the first inner cavity is larger than that of the side wall of the second inner cavity, the second inner cavity is used for filling mud bottoms, the first inner cavity is used for filling firework effect powder, and the first inner cavity is connected with the fire spraying port through a horn-shaped connecting port.
2. The bio-based polymeric material cartridge of claim 1, wherein the ratio between the radius of the fire port and the inner diameter of the first lumen is 4:8-9.5 and the ratio between the inner diameter of the first lumen and the thickness of the side wall of the first lumen is 9:4.5-5.5.
3. The bio-based polymeric material cartridge of claim 1 or 2, wherein the upper end of the flame port is connected to a guide groove having a horn shape.
4. The bio-based polymeric material cartridge of claim 3, wherein the fire port is connected to the guide slot by a rounded corner and the fire port is connected to the first lumen by a rounded corner.
5. The bio-based polymeric material cartridge of claim 1, wherein the first lumen and the second lumen are connected by an arcuate connecting surface, wherein two ends of the arcuate connecting surface are tangential to a side surface of the first lumen or a side surface of the second lumen, respectively.
6. The bio-based polymeric material spray cylinder according to claim 4, wherein the demolding rib is arranged on the inner side wall of the first inner cavity, the demolding rib is arranged in a ring shape, and the axis of the demolding rib and the axis of the first inner cavity are arranged in the same direction.
7. The bio-based polymeric material spray cartridge of claim 6, wherein the cartridge is in the shape of a cylindrical cartridge, a conical cartridge, or other contoured cartridge.
8. The bio-based polymeric material cartridge of claim 6, wherein the cartridge body, the first interior cavity, the second interior cavity, the flame ports and the plugs are formed in an integrated structure by a compression molding process.

Description

Bio-based polymeric material spray cylinder Technical Field The utility model belongs to the technical field of firework barrels, and particularly relates to a bio-based polymeric material firework barrel. Background The firework product of spraying decoration type sets up the fire-spraying mouth in fireworks section of thick bamboo one end generally, it has fireworks effect powder to pack in fireworks section of thick bamboo to carry out the shutoff processing to effect powder both ends, fireworks effect powder is sprayed out from the fire-spraying mouth after being ignited by the lead wire, form the firework molding that supplies people to appreciate in the fire-spraying mouth outside, current fireworks section of thick bamboo all is the roll-up and forms paper barrel, the shape of barrel includes cylindrical barrel (also known as straight barrel), toper barrel or other dysmorphism barrel etc. because paper roll-up needs to beat glue in current barrel manufacturing process, consequently the barrel after the roll-up still carries out stoving or sun-drying technology, then still need to impress lead wire and solid primer in the one end of barrel, just can carry out subsequent filling operation, consequently the processing cycle of whole barrel is longer, the processing of barrel receives weather greatly to the producer that does not have drying equipment. The patent application with publication number CN212362986U discloses an integrally formed plant fiber environment-friendly barrel with a flame-throwing port, the firework barrel is manufactured by adopting an integrally formed hot-pressing process, the manufactured firework barrel does not need to be subjected to a subsequent drying process, but after firework effect powder filling and mud bottom pressing are carried out, the condition that the internal pressure of the barrel is overlarge due to the fact that the side wall strength of the barrel or the size of the flame-throwing port is too small can occur in the subsequent setting-off process, and the condition that the flame-throwing is fried can occur, but if the size of the flame-throwing port is simply enlarged, the firework effect powder filling and transportation are inconvenient in the actual production process. Meanwhile, the existing spray flowers cannot insulate heat effectively after being set off due to the fact that the thickness of the side wall of the firework barrel is not enough, the overall temperature of the firework barrel is high after being set off, if a user picks up the firework barrel after being set off due to curiosity and other reasons, and the firework barrel at the moment has the risk of scalding fingers of the user. Disclosure of utility model Aiming at the problems, the utility model provides a bio-based polymeric material spray cylinder which is used for solving the problem of cylinder frying when a firework cylinder is set off. In order to achieve the above purpose, the utility model adopts the following technical scheme: The bio-based polymeric material spraying cylinder is characterized by comprising a cylinder body, wherein a first inner cavity and a second inner cavity are arranged in the cylinder body, one end of the first inner cavity is provided with a plug, the other end of the first inner cavity is communicated with the second inner cavity, a fire spraying port is formed in the plug, the first inner cavity is communicated with the outside through the fire spraying port, the inner diameter of the first inner cavity is smaller than that of the second inner cavity, the thickness of the side wall of the first inner cavity is larger than that of the side wall of the second inner cavity, the second inner cavity is used for filling mud bottoms, the first inner cavity is used for filling firework effect powder, and the first inner cavity is connected with the fire spraying port through a horn-shaped connecting port. As a further improvement of the technical scheme, the ratio of the radius of the fire spraying opening to the inner diameter of the first inner cavity is 4:8-9.5, and the ratio of the inner diameter of the first inner cavity to the thickness of the side wall of the first inner cavity is 9:4.5-5.5. As a further improvement of the technical scheme, the upper end of the flaming port is connected with the guide groove, and the guide groove is horn-shaped. As a further improvement of the technical scheme, the connection part of the fire spraying port and the guide groove is connected through a round corner, and the connection part of the fire spraying port and the first inner cavity is connected through a round corner. As a further improvement of the above technical solution, the first inner cavity and the second inner cavity are connected by an arc-shaped connecting surface, wherein two ends of the arc-shaped connecting surface are tangent to the side surface of the first inner cavity or the side surface of the second inner cavity respectively. As a further impr