Dustproof cover for bead spitting fireworks

Abstract

The utility model belongs to the technical field of bead spitting firework protection structures, and discloses a dust cover for bead spitting fireworks, which comprises a dust cover which is a hollow cylindrical body, the dust cover comprises a cover body, a connecting part and an expansion part which are integrally formed, one end part of the expansion part is sleeved on a bead spitting firework launching cylinder, and the other end part of the expansion part is connected with the connecting part; according to the device, dust and smoke generated in the emitting process of the bead-spitting fireworks can be contained, the situation that the dust and the smoke generated by directly setting off the bead-spitting fireworks in a traditional mode are diffused in a large range is avoided, and in addition, the effect that the bead-spitting fireworks are directly set off in the traditional mode is achieved, and the service life of the bead-spitting fireworks is prolonged. Smoke is gathered in the expansion part, bright beads which are combusted at high temperature and sawdust which is not fully combusted are pushed along with gunpowder emission to continuously spurt out, organic smoke containing oxygen and flame which are gathered in the dust cover of the barrel opening are collided, and the smoke and the flame rush out to be combusted again at high temperature, so that the smoke gathered in the inner cavity is combusted more fully.

Description

TECHNICAL FIELD

[0001] The utility model relates to spitting bead firework protection structure technical field, more specifically, relate to dust cover for spitting bead firework. BACKGROUND

[0002] With the progress of science and technology and enterprise innovation, the pyrotechnic process comes to the development opportunity. The flower and firecracker industry actively explores, and fuses the traditional and modern manufacturing technology, and a large number of high-tech content high firework new products emerge in endlessly. These products are deeply loved by the public because of strong entertainment, environmental protection and safety, and the product color and modeling on the market are increasingly diversified.

[0003] As a popular combination spitting bead firework product, Gatling firework is favored because of unique modeling and shocking display effect, and people often hold it obliquely to the sky and display it. But the firework contains sawdust, soil and other auxiliary materials, and when spitting bead is launched, fine dust particles will fall on the body, which greatly destroys the display experience. In view of this, we propose a dust cover for spitting bead firework. UTILITY MODEL CONTENT

[0004] 1. Technical problem to be solved

[0005] The utility model aims at providing a dust cover for spitting bead firework to solve the problem of destroying the display experience in the background technology.

[0006] 2. Technical scheme

[0007] The dust cover for spitting bead firework comprises:

[0008] The dust cover is a hollow cylindrical body, which comprises an integrally formed cover body, a connecting part and an expansion part, one end of the expansion part is sleeved on the spitting bead firework launching tube, and a lead slot is formed for the lead of the spitting bead firework to pass through, the other end is expanded to the same size as the cover body, the other side of the cover body is connected with the connecting part, and a plurality of heat dissipation holes are formed on the surface of the dust cover for heat dissipation in the cavity.

[0009] A dust cover is sleeved on the end of the dust cover away from the lead slot end, the inner diameter of the dust cover is smaller than the inner diameter of the dust cover, and larger than the caliber of the end of the dust cover away from the dust cover.

[0010] Preferably, the heat dissipation holes are arranged on the surface of the cover body, the connecting part and / or the expansion part.

[0011] Preferably, the heat dissipation holes are arranged in the shape of a rectangle, a circle, a triangle or a hexagon.

[0012] Preferably, the expansion part comprises a V-shaped part and a V-shaped accommodating cavity, the V-shaped part is a V-shaped bending piece, the outer side is arranged in the shape of a horn cylinder, the inner side is bent to form a hollow cylindrical shape, and the V-shaped accommodating cavity is formed between the inner side and the outer side.

[0013] Preferably, the expansion part further comprises reinforcing ribs, a plurality of reinforcing ribs are equidistantly distributed around the axis of the inner wall of the V-shaped part cylinder, and the reinforcing ribs are connected to the inner and outer side walls of the V-shaped part.

[0014] Preferably, the expansion part further comprises a clamping edge, the end of the inner cylindrical wall of the V-shaped part extending into the deepest part of the inner cavity of the dust cover protrudes and thickens towards the axis of the cylinder to form the clamping edge.

[0015] Preferably, the dust cover comprises a clamping groove, a cover body and a launching port, the cover body is a circular ring member, the inner side of the cover body is bent to form an outwardly open V-shaped launching port, the clamping groove is arranged on the outer side of the cover body, and the connecting part is clamped in the clamping groove.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The dust cover is arranged, dust and smoke generated in the launching process of the pearl-shaped firework can be accommodated, the dust and smoke generated in the direct launching of the pearl-shaped firework in the traditional mode can be prevented from diffusing in a large range, the smoke is gathered in the expansion part, the high-temperature burning bright pearl and the incompletely combusted sawdust are continuously sprayed and gushed out along with the launching of the gunpowder, the organic smoke containing oxygen gathered in the dust cover at the cylinder opening collides with the flame, and the high-temperature flame is ejected to be combusted again, so that the smoke gathered in the inner cavity is combusted more sufficiently, heat is dissipated through the heat dissipation holes, the safety problem caused by the excessive heat in the inner cavity of the dust cover during the continuous launching of the pearl-shaped firework is prevented, and the safety during use is improved.

[0019] 2. The dust cover and the expansion part arranged by being bent are arranged, the V-shaped accommodating cavity is formed between the inner side and the outer side, and the dust generated in the launching process of the pearl-shaped firework can be accommodated, in the launching process of the pearl-shaped firework, the firework pearl, the sawdust and dust in the inner part are pushed out due to the ignition of the gunpowder, the ejected dust and sawdust are limited in the dust cover, the diffusion of the dust is reduced, the flying dust is prevented from flying out along with the pearl-shaped firework, the experience effect is improved, a small part of the bright pearl falling due to a short range in the launching process of the pearl-shaped firework is accommodated, the human body is prevented from being hurt, and the safety during the launching of the pearl-shaped firework is improved.

[0020] 3. The dust cover and the dust cover body can be assembled on different pearl-shaped fireworks, the dust cover can be disassembled and installed on other pearl-shaped fireworks after one pearl-shaped firework is launched, and the dust cover can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1It is the overall structure schematic view of the dust cover for the spouting pearl firework in the application;

[0022] Figure 2 It is the structure schematic view when the dust cover and the dust cover are assembled in the application;

[0023] Figure 3 It is the structure schematic view of the dust cover in the application;

[0024] Figure 4 It is the vertical sectional view of the dust cover in the application;

[0025] Figure 5 It is the structure schematic view of the dust cover in the application;

[0026] Figure 6 It is the vertical sectional structure schematic view of the dust cover in the application;

[0027] Explanation of reference numerals in the drawing:

[0028] 1, dust cover; 2, dust cover; 3, heat dissipation hole; 4, lead slot;

[0029] 11, cover body; 12, connecting part; 13, expansion part;

[0030] 131, V-shaped part; 132, V-shaped accommodating cavity; 133, reinforcing rib plate; 134, clamping edge;

[0031] 21, clamping groove; 22, cover body; 23, emitting port. DETAILED DESCRIPTION

[0032] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "set", "sleeve / joint", "connect" and the like should be understood broadly, for example, "connect", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] Please refer to Figures 1-6 The utility model provides a technical scheme:

[0036] The dust cover for spitting bead firework, comprising:

[0037] The dust cover 1 is a hollow cylindrical body, the dust cover 1 includes an integrally-formed cover body 11, a connecting portion 12 and an expansion portion 13, the expansion portion 13 is sleeved on the spitting bead firework launching barrel at one end portion, and an ignition wire slot 4 is formed for facilitating the ignition wire of the spitting bead firework to pass through, the other end portion is expanded to the same size as the cover body 11, the other side of the cover body 11 is connected with the connecting portion 12, after the ignition wire is ignited, the spitting bead firework will be launched from the inside of the dust cover 1, and the smoke generated during the launching process will be confined in the inside of the dust cover 1, so that the condition that the smoke generated by directly launching the spitting bead firework in the traditional mode is diffused in a large range is avoided, and the smoke gathered in the inside of the dust cover 1 will cause the heat in the inside of the dust cover 1 to be concentrated, the temperature of the internal cavity is increased, so that the smoke gathered in the internal cavity is burned more fully, a plurality of heat dissipation holes 3 for facilitating the heat dissipation of the internal cavity are formed in the surface of the dust cover 1, in the embodiment, the heat dissipation holes 3 are specifically arranged on the surface of the cover body 11, of course, can also be arranged on the expansion portion 13, and the shape is not limited, and rectangular, circular, triangular and the like can be used, to prevent the heat in the internal cavity of the dust cover 1 from being too high to cause safety problems during the continuous launching of the spitting bead firework.

[0038] The dust cover 1 is sleeved on the dust cover 1 end portion away from the end portion of the ignition wire slot 4, the dust cover 2 is sleeved on the dust cover 1 end portion away from the end portion of the ignition wire slot 4, the dust cover 2 inner diameter is less than the dust cover 1 inner diameter, simultaneously, the dust cover 2 inner diameter is greater than the dust cover 1 end portion away from the dust cover 2 end diameter, that is, greater than the diameter of the launching place of the spitting bead firework launching barrel, the spitting bead firework can be normally launched and shot out of the opening of the dust cover 2 after being launched, and because the diameter is slightly smaller than the dust cover 1, therefore, the smoke generated when the spitting bead firework is launched is not easy to escape, so as to facilitate the further burning of the smoke.

[0039] Specifically, the expansion part 13 is composed of a V-shaped part 131, a V-shaped accommodating cavity 132, a reinforcing rib plate 133 and a clamping edge 134. The outer side of the V-shaped part 131 is similar to a trumpet barrel, and the inner side is bent to form a hollow cylindrical V-shaped bending piece. The V-shaped accommodating cavity 132 is formed between the inner side and the outer side. Since the pearl firework includes foam powder, sawdust and other sundries in addition to the pearl, when the pearl firework is ignited and launched in the expansion part 13, the foam powder scatters to form flying dust. Most of the flying dust is blocked by the cover body 11 and is limited in the inner cavity of the dust cover 1, and finally falls into the V-shaped accommodating cavity 132 and is collected. Due to the design of the V-shaped structure, the flying dust, sawdust and the like are preferentially gathered at the V-shaped sharp corners. Compared with the traditional vertical design of the edge, more flying dust, sawdust and the like can be accommodated, the capacity is larger, the flying dust is not easy to fall out of the V-shaped accommodating cavity 132 when the dust cover 1 is replaced, the flying dust is avoided from flying out with the pearl firework, the experience effect is improved, and meanwhile, a small part of bright pearls has a short shooting range when the pearl firework is launched, so that the falling bright pearls fall into the V-shaped accommodating cavity 132 and cannot approach the human body, the safety is improved when the pearl firework is launched. A plurality of reinforcing rib plates 133 are equidistantly distributed around the axis of the cylindrical inner wall of the V-shaped part 131. The reinforcing rib plate 133 is connected with the inner and outer two side walls of the V-shaped part 131, forms a reinforcing rib effect, and improves the firmness of the structure of the expansion part 13. The inner cylindrical wall of the V-shaped part 131 extends to the end of the deepest part in the inner cavity of the dust cover 1, protrudes and thickens to the position of the cylindrical axis, and forms the clamping edge 134. When the expansion part 13 is installed and sleeved on the pearl firework launching barrel, the clamping edge 134 is clamped at the end of the pearl firework launching barrel, so that the expansion part 13 is tightened and the firmness during installation is improved.

[0040] Further, the dust cover 2 includes a clamping groove 21, a cover body 22 and a launching port 23. The cover body 22 is a circular ring member, and the inner side is bent to form the launching port 23 with the V-shaped structure opening outwardly towards the dust cover 1. Two vertical edges perpendicular to the cover body 22 are arranged on the outer side of the cover body 22. The gap between the two vertical edges is the clamping groove 21. When the dust cover 2 is assembled on the dust cover 1, the connecting part 12 is clamped into the clamping groove 21.

[0041] The basic principle, main characteristics and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust cover for a spitting flower firework, characterized in that, The dust cover (1) is a hollow cylindrical body, which comprises an integral cover body (11), a connecting part (12) and an expansion part (13). The expansion part (13) is sleeved on the spitting bead firework launching barrel at one end and is provided with a lead slot (4) for facilitating the passage of the lead of the spitting bead firework. The other end is expanded to the same size as the cover body (11). The other side of the cover body (11) is connected with the connecting part (12). A plurality of heat dissipation holes (3) are formed on the surface of the dust cover (1) for facilitating heat dissipation in the inner cavity. A dust cover (2) is sleeved on the end of the dust cover (1) away from the lead slot (4). The inner diameter of the dust cover (2) is smaller than the inner diameter of the dust cover (1) and larger than the diameter of the end of the dust cover (1) away from the dust cover (2). The heat dissipation holes (3) are arranged on the surface of the cover body (11), the surface of the connecting part (12) and / or the surface of the expansion part (13).

2. The dust cover for the spitting bead firework according to claim 1, characterized in that: The heat dissipation holes (3) are in the shape of a rectangle, a circle, a triangle or a hexagon.

3. The dust cover for the spitting bead firework according to claim 2, characterized in that: The expansion part (13) comprises a V-shaped part (131) and a V-shaped accommodating cavity (132). The V-shaped part (131) is a V-shaped bending member, the outer side is in the shape of a horn barrel, the inner side is bent to form a hollow cylindrical shape, and the V-shaped accommodating cavity (132) is formed between the inner side and the outer side.

4. The dust cover for the spitting bead firework according to claim 1, characterized in that: The expansion part (13) further comprises a reinforcing rib plate (133). The V-shaped accommodating cavity (132) is equally distributed around the axis of the inner wall of the V-shaped part (131) cylinder.

5. The dust cover for the spitting bead firework according to claim 4, characterized in that: The expansion part (13) further comprises a clamping edge (134). The inner side cylindrical wall of the V-shaped part (131) extends to the deepest end of the inner cavity of the dust cover (1) and protrudes and thickens to form a clamping edge (134) at the position of the cylindrical axis.

6. The dust cover for the spitting bead firework according to claim 5, characterized in that: The dust cover (2) comprises a clamping groove (21), a cover body (22) and a launching port (23). The cover body (22) is a circular ring member, the inner side is bent to form a V-shaped structure launching port (23) with an opening facing outward, and the outer side is provided with a clamping groove (21). The connecting part (12) is clamped into the clamping groove (21).

7. The dust cover for the spitting bead firework according to claim 1, characterized in that: ​

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