CN213481146U

CN213481146U - Combined firecrackers and firecrackers string

Info

Publication number: CN213481146U
Application number: CN202022081984.4U
Authority: CN
Inventors: 赵子刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-18
Anticipated expiration: 2030-09-22

Abstract

The utility model belongs to the technical field of firecrackers, and provides a combined firecrackers and a firecracker string for integrating the advantages of single firecrackers and conjoined firecrackers, which particularly comprises a connector, wherein the connector comprises a middle connecting part and inserting parts arranged at two ends; the inserting parts on two sides are connected with the same or different firecracker monomers, and the outer wall surfaces of the inserting parts are gradually reduced from the inserting ends to the connecting parts; the firecracker monomer is provided with an annular gap, and the insertion part is inserted into the annular gap in an interference fit manner and is connected with the firecracker monomer. The utility model has the advantages of convenient production of the firecracker monomers and simple structure, and the connecting piece can quickly connect different firecracker monomers; the production efficiency and the viewing effect of the firecracker string are improved.

Description

Combined firecrackers and firecrackers string

Technical Field

The utility model belongs to the technical field of the firecrackers, concretely relates to modular firecrackers and firecracker string.

Background

At present, firecrackers are forbidden in many cities in China, and the traditional firecrackers are set off without harm: firstly, smoke dust is generated to form air pollution; secondly, the paper scraps after explosion fly everywhere to form environmental pollution; thirdly, the explosion of the traditional firecrackers is easy to hurt people and has potential safety hazard. However, the original source of firecrackers has more than 1000 years of history, and the firecrackers have beautiful connotation when being set off.

The applicant is dedicated to research and develop safe and environment-friendly firecrackers for decades, and selects plastic as a material to research and develop a product for one generation and another, so that the problems of the traditional firecrackers are solved, and the atmosphere of festival and celebration can be reserved. Representative products include:

an integrated firecracker monomer disclosed in Chinese utility model patent with application number 201720472675.5.

The patent of Chinese utility model with application number 201720472977.2 discloses a built-in firecracker.

The products are made of tough plastics, the cylindrical body is not damaged after the firecracker is set off, the firecracker can be repeatedly used after the firecracker is set off, and the problems of air pollution, environmental pollution and potential safety hazard are fundamentally solved.

However, the product is a single firecracker, the individual production of the firecracker is convenient, but the firecracker is not convenient to bind and weave, and the set-off firecracker is easy to scatter.

The applicant has designed a one-piece firecracker, for example: the invention discloses an integrated assembled firecracker with application number 201910053967.9, which combines two firecrackers into a whole, and the firecracker has single setting-off effect and higher production cost.

Among other published technologies, the Chinese utility model with application number 201920316302.6 discloses a firecracker monomer, a monomer assembly and a firecracker; the patent actually aims to avoid the technology disclosed by the applicant of the patent, the medicine charging cavity and the fixed guiding cavity are arranged on one side, and the bottom of the medicine charging fixed guiding cavity is provided with an inclined plane; the UV glue is easy to fall off and burst out when the design is set off; and the protective shell and the connecting piece are only in contact connection through the inner wall of the protective shell and the outer wall of the connecting piece, and the inner wall of the connecting piece is not supported, so that the protective shell is easy to fall off.

Therefore, the utility model aims at providing a have the combination formula firecrackers of the advantage of monomer formula firecrackers and disjunctor formula firecrackers concurrently, improve effect and the security of setting off simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an integrate the advantage of monomer formula firecrackers and disjunctor formula firecrackers, provide a modular firecrackers and firecracker cluster.

The utility model adopts the following technical proposal; a combined firecracker comprises a connector, wherein the connector comprises a middle connecting part and inserting parts arranged at two ends; the method is characterized in that: the inserting parts on two sides are connected with the same or different firecracker monomers, and the outer wall surfaces of the inserting parts are gradually reduced from the inserting ends to the connecting parts; the firecracker monomer is provided with an annular gap, and the insertion part is inserted into the annular gap in an interference fit manner and is connected with the firecracker monomer.

Furthermore, the firecracker unit is split and comprises an insertion tube and a fastening cap, the insertion tube is provided with an inner pipe body and an outer pipe body, and the insertion part of the connecting body is inserted into an annular gap between the inner pipe body and the outer pipe body in an interference fit manner; the inner tube is sequentially divided into a fuel cavity, a lead hole and a fixed lead cavity along the axial direction, and a sealing layer is arranged outside the inner tube to seal the side pipe orifice of the fuel cavity; the fastening cap is sleeved on the insertion pipe, and the inner flange of the fastening cap is abutted to the sealing layer; the lead is arranged in the inner tube in a penetrating way, is fixed by the filler in the guide cavity and is contacted with the explosive in the explosive cavity.

Further, the outer wall surface of the inner tube of the cannula is gradually expanded from bottom to top.

Furthermore, the firecracker monomer is built-in and comprises an inner core and a sleeve, the inner core is sequentially divided into a powder burning cavity, a lead hole and a fixed lead cavity along the axial direction, and a sealing piece is arranged at the opening of the powder burning cavity for sealing; the inner core is pushed into the sleeve from top to bottom until abutting against the inner flange of the sleeve, and the insertion part of the connecting body is inserted into the annular gap between the sleeve and the inner core in an interference fit manner; the lead is arranged in the inner core in a penetrating way, is fixed by the filler in the guide cavity and is in contact with the explosive in the explosive cavity.

Furthermore, the depth of the fuel cavity is 5mm, the sealing piece is a sealing layer arranged outside the inner core, and an inner flange of the sleeve is abutted against the sealing layer.

Further, the depth of the fuel cavity is 7mm, and the sealing piece is sealing agent for sealing in the fuel cavity.

Furthermore, the outer wall surface of the inner core is gradually expanded from bottom to top.

Furthermore, the firecracker monomer is an integral body, and the firecracker monomer is provided with an inner pipe body and an outer pipe body, wherein the insertion part of the connector is inserted into the annular gap between the inner pipe body and the outer pipe body in an interference fit mode, the inner pipe is sequentially divided into a firecracker powder cavity, a lead hole and a solid lead cavity along the axial direction, a sealing agent is arranged in the firecracker powder cavity for sealing, and a lead penetrates through the firecracker monomer and is fixed by a filler in the solid lead cavity and is in contact with explosive in the firecracker powder cavity.

Furthermore, the firecracker monomer is a special pipe which is provided with an inner pipe body and an outer pipe body, the inserting part of the connecting body is inserted into the annular gap between the inner pipe body and the outer pipe body in an interference fit mode, the inner pipe is sequentially divided into an inner container cavity, a lead hole and a fixed lead cavity along the axial direction, the depth of the inner container cavity is 16mm, and a fixed electron tube, a colored tube or a propellant powder tube is filled in the inner container cavity.

The utility model also provides a firecracker string, including a plurality of foretell connector through the wire rope knot compile into the cluster, in the connector string, peg graft built-in firecrackers, or integral type firecrackers, or split type firecrackers and form the main part, then in its interval 30-50 firecrackers monomer, a pair of special type pipe of cartridge.

Compared with the prior art, the utility model has the advantages that:

the utility model provides a pair of modular firecrackers, firecrackers monomer production simple process constitutes the free each part of firecrackers and all can adopt injection moulding, and injection mold simple structure, and the product yields is high, and production speed is fast.

When the firecracker monomer is connected with the connector, the insertion part of the connector is inserted into the annular gap in an interference fit manner and is connected with the firecracker monomer, the outer wall surface of the insertion part is gradually reduced from the insertion end to the connection part to form a locking structure with a large inner head and a small outer head, and the firecracker monomer is not easy to fall off from the connector when being set off.

The combined firecrackers are modularized, and the connecting body can be inserted with split firecrackers, built-in firecrackers and special pipes; the structure and the production process of the split firecrackers, the built-in firecrackers and the special pipes are different, but the split firecrackers, the built-in firecrackers, the special pipes and the pipes can be matched and connected with the connecting body to form combined firecrackers, and enterprises can select a proper individual form of firecrackers according to the technical conditions and the requirements of users; a pair of special tubes can be inserted into a main body formed by the built-in firecrackers, or the integrated firecrackers, or the split firecrackers at intervals, and electronic tubes, festoon tubes or propellant tubes are inserted into the special tubes to achieve different setting-off effects. The utility model discloses combination formula firecrackers and firecrackers cluster adopt the modularization theory, improve when reaching the cost of reduction production and set off the effect.

Drawings

FIG. 1 is a schematic view of the structure of a linker.

Fig. 2 is a schematic structural view of embodiment 1.

Fig. 3 is a schematic view showing the combination of the cannula, the securing cap, and the connecting body in example 1.

Fig. 4 is a schematic structural view of a fastening cap in embodiment 1.

Fig. 5 is a schematic structural view of the cannula in example 1.

Fig. 6 is a schematic structural view of embodiment 2.

FIG. 7 is a schematic structural diagram of a firecracker monomer in embodiment 2.

Fig. 8 is a schematic structural view of embodiment 3.

FIG. 9 is a schematic structural view of example 4.

Fig. 10 is a schematic structural view of the sleeve in embodiment 3 or embodiment 4.

Fig. 11 is a schematic structural view of the inner core in example 3 or example 4.

FIG. 12 is a schematic view showing the structure of a single firecracker in embodiment 5.

Fig. 13 is a schematic structural diagram of effect one of embodiment 5.

Fig. 14 is a schematic structural view of effect two of embodiment 5.

Figure 15 is a schematic diagram of the structure of a firecrackers string.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

As shown in fig. 1 to 14, the combined firecracker comprises a connector 1, the connector 1 comprises a connection part 101 and a hollow insertion part 102 extending from the connection part 101 to two sides, a main lead hole radially penetrates through the insertion part 102, and a separation groove on the outer wall of the insertion part 102 is cut along the axial direction and communicated with the main lead hole. The same or different firecracker monomers are connected to the insertion parts 102 on the two sides, and the outer wall surfaces of the insertion parts 102 are gradually reduced from the insertion ends to the connection parts 101; the firecracker monomer is provided with an annular gap, and the insertion part 102 is inserted into the annular gap in an interference fit manner and is connected with the firecracker monomer.

Example 1

As shown in fig. 2 to 5; the firecracker monomer is split and comprises an insertion tube 3 and a fastening cap 2, wherein the insertion tube 3 is provided with an inner tube 301 and an outer tube 302, and the insertion part 102 of the connector 1 is inserted into an annular gap between the inner tube and the outer tube in an interference fit manner; the inner tube 301 is sequentially divided into a fuel cavity 303, a lead hole 304 and a fixed lead cavity 305 along the axial direction, and a sealing layer 7 is arranged outside the inner tube 301 to seal the side pipe orifice of the fuel cavity 303; the fastening cap 2 is sleeved on the insertion tube 3, and the inner flange of the fastening cap is abutted against the sealing layer 7 to prevent the sealing layer 7 from falling off; the lead 4 is inserted into the inner tube 301, fixed by the filler in the guiding cavity 305 and contacts with the fuel in the fuel cavity 303.

As a further preferable mode of this embodiment, the outer wall surface of the inner tube 301 of the insertion tube 3 is gradually enlarged from bottom to top; the inner tube 301 expands the insertion part 102 of the connector 1 outward, increasing the taper of the outer wall surface of the insertion part 102 and improving the firmness after connection.

Example 2

As shown in fig. 6 and 7; the firecracker monomer is an integral body, and the firecracker monomer is provided with an inner tube body and an outer tube body, wherein the insertion part 102 of the connector 1 is inserted into a circumferential gap between the inner tube 601 and the outer tube 602 in an interference fit mode, the inner tube 601 is sequentially divided into a firecracker powder cavity 603, a lead hole 604 and a solid leading cavity 605 along the axial direction, a sealing agent 8 is arranged in the firecracker powder cavity 603 for sealing, and a lead 4 penetrates through the firecracker monomer and is fixed through a filler in the solid leading cavity 605 and is in contact with explosive in the firecracker powder cavity 605.

Example 3

As shown in fig. 8, 10, 11; the firecracker unit is built-in and comprises an inner core 9 and a sleeve 10, the inner core 9 is sequentially divided into a fuel cavity 901, a lead hole 902 and a fixed lead cavity 903 along the axial direction, the depth of the fuel cavity 901 is 5mm, and a sealing layer 7 is arranged outside the inner core 9 to seal a pipe orifice at the side of the fuel cavity 901; the inner core 9 is pushed into the sleeve 10 from top to bottom until the sealing layer 7 abuts against the inner flange of the sleeve 10, and the insertion part 102 of the connector 1 is inserted into the annular gap between the sleeve 10 and the inner core 9 in an interference fit manner; the lead 5 is arranged in the inner core 9 in a penetrating way, is fixed by the filler in the lead fixing cavity 903 and is in contact with the fuel in the fuel cavity 901.

Example 4

As shown in fig. 9; the difference between this embodiment and embodiment 3 is characterized in that the depth of the fuel cavity 901 of the inner core 9 is 7mm, and the sealing agent 8 is arranged in the cavity of the fuel cavity 901 for sealing.

Example 5

As shown in FIGS. 13 to 14; the firecracker monomer is special type pipe 11, it has inside and outside body, the inserted connection portion 102 interference fit of connector 1 inserts the inner tube 1101, in the annular clearance between outer tube 1102, inner tube 1101 is divided into inner bag chamber 1103, pin hole 1104 and solid guide chamber 1105 along the axial in proper order, the degree of depth in inner bag chamber 1103 is 16mm, fixed electron tube 13, colored tube or propellant powder pipe are packed in the inner bag chamber 1103, the lead wire of colored tube or propellant powder pipe passes pin hole 1104 and stretches into in the solid guide chamber 1105. The vibration generated after the firecracker close to the electron tube 13 is set off makes the electron tube light, the color paper is ejected after the color tube is ignited, and the color cigarette is released after the propellant tube is ignited. The special pipe 11 is randomly matched and used in the firecracker string to improve the setting-off effect of the firecrackers.

As shown in fig. 15, a firecracker string comprises a plurality of the connectors, which are bound and woven into a string by steel wire ropes, and one or more firecracker monomers are inserted into the connectors. The connector string is inserted with built-in firecrackers, or integrated firecrackers, or split firecrackers to form a main body, and then a pair of special pipes are inserted in the main body at intervals of 30-50 firecrackers to further refresh the setting off effect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined firecracker comprises a connector, wherein the connector comprises a middle connecting part and inserting parts arranged at two ends; the method is characterized in that: the inserting parts on two sides are connected with the same or different firecracker monomers, and the outer wall surfaces of the inserting parts are gradually reduced from the inserting ends to the connecting parts; the firecracker monomer is provided with an annular gap, and the insertion part is inserted into the annular gap in an interference fit manner and is connected with the firecracker monomer.

2. The combined firecracker of claim 1, wherein: the firecracker single body is split and comprises an insertion tube and a fastening cap, the insertion tube is provided with an inner tube body and an outer tube body, and the insertion part of the connecting body is inserted into an annular gap between the inner tube body and the outer tube body in an interference fit manner; the inner tube is sequentially divided into a fuel cavity, a lead hole and a fixed lead cavity along the axial direction, and a sealing layer is arranged outside the inner tube to seal the side pipe orifice of the fuel cavity; the fastening cap is sleeved on the insertion pipe, and the inner flange of the fastening cap is abutted to the sealing layer; the lead is arranged in the inner tube in a penetrating way, is fixed by the filler in the guide cavity and is contacted with the explosive in the explosive cavity.

3. The combined firecracker of claim 2, wherein: the outer wall surface of the inner tube of the intubation tube is gradually expanded from bottom to top.

4. The combined firecracker of claim 1, wherein: the firecracker monomer is built-in and comprises an inner core and a sleeve, the inner core is sequentially divided into a powder burning cavity, a lead hole and a fixed lead cavity along the axial direction, and a sealing piece is arranged at an opening of the powder burning cavity for sealing; the inner core is pushed into the sleeve from top to bottom until abutting against the inner flange of the sleeve, and the insertion part of the connecting body is inserted into the annular gap between the sleeve and the inner core in an interference fit manner; the lead is arranged in the inner core in a penetrating way, is fixed by the filler in the guide cavity and is in contact with the explosive in the explosive cavity.

5. The combined firecracker of claim 4, wherein: the depth of the fuel cavity is 5mm, the sealing piece is a sealing layer arranged outside the inner core, and the inner flange of the sleeve is abutted to the sealing layer.

6. The combined firecracker of claim 4, wherein: the degree of depth in fuel chamber is 7mm, the closure is the sealant of shutoff in fuel chamber cavity.

7. The combined firecracker of claim 4, wherein: the outer wall surface of the inner core is gradually expanded from bottom to top.

8. The combined firecracker of claim 1, wherein: the firecracker monomer is an integral body and is provided with an inner pipe body and an outer pipe body, the insertion part of the connector is inserted into the annular gap between the inner pipe body and the outer pipe body in an interference fit mode, the inner pipe is sequentially divided into a firecracker powder cavity, a wire leading hole and a solid leading cavity along the axial direction, a sealing agent is arranged in the firecracker powder cavity for sealing, a lead is arranged in the firecracker monomer in a penetrating mode, and the firecracker monomer is fixed through a filler in the solid leading cavity and is in contact connection with explosive in the firecracker powder cavity.

9. The combined firecracker of claim 1, wherein: the firecracker monomer is a special pipe and is provided with an inner pipe body and an outer pipe body, the inserting part of the connector is inserted into the annular gap between the inner pipe body and the outer pipe body in an interference fit mode, the inner pipe is sequentially divided into an inner container cavity, a lead hole and a fixed lead cavity along the axial direction, the depth of the inner container cavity is 16mm, and a fixed electron tube, a colored tube or a propellant powder tube is filled in the inner container cavity.

10. A firecracker string is characterized in that: the firecracker connecting device comprises a plurality of connecting bodies of claim 1, wherein the connecting bodies are connected into a string through steel wire ropes, built-in firecrackers, integrated firecrackers or split firecrackers are inserted into the connecting body string to form a main body, and a pair of special pipes are inserted into the main body at intervals of 30-50 firecracker monomers.