Handheld firework outer barrel

Abstract

The utility model discloses a handheld firework outer barrel which comprises an outer barrel body and a knob installed at the bottom of the outer barrel body, a screw rod is arranged in the center of the top of the knob, the screw rod is rotatably installed in the outer barrel body, a plurality of baffles are arranged on the side wall of the outer barrel body in a surrounding mode, a plurality of grooves are formed in the side wall of the outer barrel body, two clamping grooves are symmetrically formed in the grooves, and the baffles are arranged in the clamping grooves. A plurality of baffles are arranged on the side wall of the outer barrel body, the rotary knob is rotated to drive the screw rod to rotate during handheld setting-off, the screw rod drives the inner barrel to ascend, the baffles are arranged on the side wall of the outer barrel body, the baffles are arranged on the side wall of the outer barrel body, and two supporting rods are symmetrically arranged on one side wall of each baffle and installed in the clamping grooves in a clamped and embedded mode. The baffles can be pushed to be opened outwards in the rising process of the inner barrel, gaps are reserved between the baffles and the outer barrel body, a certain heat insulation effect is achieved, the baffles are held for setting off in the using process, the outer barrel body which is gradually heated can be prevented from being scalded, and setting off is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks, in particular to a handheld outer cylinder of a fireworks. Background Art

[0002] The handheld fireworks is a form of fireworks that is quite popular among the people. It is convenient to use, safe to set off, and has a good effect of fireworks spraying. When held and set off, it can bring a pleasant setting-off experience to the user. The existing handheld fireworks mostly have a structure of directly filling gunpowder in the outer cylinder to form a gunpowder column. The heat instantaneously released during the burning of the gunpowder will be conducted to the inside of the outer cylinder, causing the outer cylinder to gradually heat up. Since the user directly holds the outer cylinder to set off the fireworks and lacks heat insulation measures, the gradually heating outer cylinder is likely to cause burns to the person setting off the fireworks. Therefore, a handheld outer cylinder of a fireworks is proposed. Summary of the Utility Model

[0003] The purpose of the utility model is to solve any of the above technical problems, and thus a handheld outer cylinder of a fireworks is proposed, which includes an outer cylinder and a knob installed at the bottom of the outer cylinder. A screw rod is provided at the central position of the top of the knob, and the screw rod is rotatably installed inside the outer cylinder. A plurality of baffles are arranged around the side wall of the outer cylinder.

[0004] Further, a plurality of grooves are formed on the side wall of the outer cylinder. The grooves are arranged at equal intervals in a circular manner, and the number of grooves is the same as that of the baffles. An installation groove is formed at the bottom of the outer cylinder. An inner cylinder is movably installed on the screw rod, and both the screw rod and the inner cylinder are located in the installation groove.

[0005] Further, the size of the baffle fits the groove. Two clamping slots are symmetrically formed in the groove. Two support rods are symmetrically arranged on one side wall of the baffle, and the support rods are clamped and installed in the clamping slots. A threaded hole is formed in the middle of the inner cylinder, and the screw rod is in threaded connection with the threaded hole.

[0006] Further, a clamping buckle is provided on one side of the support rod. The inner cylinder is in a frustum shape, and a plurality of clamping slots are formed on the side wall of the inner cylinder. The clamping slots are arranged at equal intervals in a circular manner.

[0007] Further, the clamping buckle is clamped and installed in the sliding groove, and the clamping buckle can slide in the sliding groove.

[0008] Beneficial Effects: By arranging a plurality of baffles on the side wall of the outer cylinder, when holding and setting off the fireworks, the screw rod is driven to rotate by rotating the knob, and the inner cylinder is driven to move upward by the screw rod. During the upward movement of the inner cylinder, the plurality of baffles are pushed to expand outwards, leaving a gap between the baffles and the outer cylinder, playing a certain heat insulation effect. When using, the fireworks are set off by holding the baffles, which can avoid being scalded by the gradually heating outer cylinder and make the setting off safer. Description of the Drawings

[0009] Figure 1 is the overall structure schematic diagram of the present utility model Figure 1 ;

[0010] Figure 2 is the overall structure schematic diagram of the present utility model Figure 2 ;

[0011] Figure 3 is the partial sectional view of the present utility model;

[0012] Figure 4 is the partial structure schematic diagram of the present utility model;

[0013] Figure 5 is Figure 4 the exploded view of;

[0014] Figure 6 is the structure schematic diagram of the baffle of the present utility model;

[0015] Reference numerals:

[0016] outer cylinder body 1; groove 101; clamping groove 102; installation groove 103; baffle 2; support rod 201; buckle 202; knob 3; screw rod 4; inner cylinder 5; screw hole 501; sliding groove 502. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0018] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model.

[0019] Next, a handheld fireworks outer cylinder according to an embodiment of the present utility model will be described with reference to the accompanying drawings. As Figures 1 to 6 shown, the handheld fireworks outer cylinder includes an outer cylinder body 1 and a knob 3 installed at the bottom of the outer cylinder body 1. A screw rod 4 is provided at the central position of the top of the knob 3. The screw rod 4 is rotatably installed in the outer cylinder body 1. A plurality of baffles 2 are provided around the side wall of the outer cylinder body 1. Anti-slip patterns are provided on the surfaces of the baffles 2. The setting of the anti-slip patterns can increase the friction when holding the baffle 2. Anti-slip patterns are also provided on the surface of the knob 3 to facilitate the user to rotate the knob 3.

[0020] Preferably, a plurality of grooves 101 are formed in the side wall of the outer cylinder body 1. The grooves 101 are arranged in an equidistant and circumferential manner, and the number of the grooves 101 is the same as that of the baffle plates 2. An installation groove 103 is formed in the bottom of the outer cylinder body 1. An inner cylinder 5 is movably installed on the screw rod 4, and both the screw rod 4 and the inner cylinder 5 are located in the installation groove 103.

[0021] Preferably, the size of the baffle plate 2 fits the groove 101. Two clamping grooves 102 are symmetrically formed in the groove 101. Two support rods 201 are symmetrically arranged on one side wall of the baffle plate 2. The support rods 201 are clamped and installed in the clamping grooves 102. A threaded hole 501 is formed in the middle of the inner cylinder 5, and the screw rod 4 is in threaded connection with the threaded hole 501.

[0022] Preferably, a clamping buckle 202 is arranged on one side of the support rod 201. The inner cylinder 5 is in a frustum shape, and a plurality of sliding grooves 502 are formed in the side wall of the inner cylinder 5. The sliding grooves 502 are arranged in an equidistant and circumferential manner.

[0023] Preferably, the clamping buckle 202 is clamped and installed in the sliding groove 502, and the clamping buckle 502 can slide in the sliding groove 502.

[0024] In a specific embodiment: By rotating the knob 3, the screw rod 4 is driven to rotate. When the screw rod 4 rotates, the inner cylinder 5 connected thereto will move upward in the installation groove 103. Since the inner cylinder 5 is in a frustum shape and the side wall is an inclined surface, and a plurality of sliding grooves 502 are arranged in an equidistant and circumferential manner on the side wall of the inner cylinder 5. At the same time, the clamping buckle 202 on one side of the support rod 201 is clamped and installed in the sliding groove 502. When the inner cylinder 5 moves upward, the cooperation between the clamping buckle 202 and the sliding groove 502 will push the support rod 201 to move outward. The support rod 201 drives a plurality of baffle plates 2 to expand outward, leaving a gap between the baffle plates 2 and the outer cylinder body 1, playing a certain heat insulation effect. When in use, by holding the baffle plate 2 to set off fireworks, it can avoid being scalded by the gradually heating outer cylinder body 1, and the setting off is safer.

[0025] Working principle: When holding and setting off fireworks, by rotating the knob 3, the screw rod 4 is driven to rotate. When the screw rod 4 rotates, the inner cylinder 5 connected thereto will move upward in the installation groove 103. Since the inner cylinder 5 is in a frustum shape and the side wall is an inclined surface, and a plurality of sliding grooves 502 are arranged in an equidistant and circumferential manner on the side wall of the inner cylinder 5. At the same time, the clamping buckle 202 on one side of the support rod 201 is clamped and installed in the sliding groove 502. When the inner cylinder 5 moves upward, the cooperation between the clamping buckle 202 and the sliding groove 502 will push the support rod 201 to move outward. The support rod 201 drives a plurality of baffle plates 2 to expand outward, leaving a gap between the baffle plates 2 and the outer cylinder body 1, playing a certain heat insulation effect. Subsequently, the user holds the baffle plate 2 to set off fireworks, which can avoid being scalded by the gradually heating outer cylinder body 1, and the setting off is safer.

Claims

1. A handheld firework outer cylinder, characterized in that: The invention comprises an outer cylinder (1) and a knob (3) mounted on the bottom of the outer cylinder (1), a screw rod (4) is provided at the central position of the top of the knob (3), and the screw rod (4) is rotatably mounted in the outer cylinder (1), and a plurality of baffles (2) are arranged around the side wall of the outer cylinder (1).

2. The handheld firework outer cylinder as claimed in claim 1, characterized in that: A plurality of grooves (101) are provided on the side wall of the outer cylinder (1), the grooves (101) are arranged equidistantly around the outer cylinder (1), and the number of the grooves (101) is the same as that of the baffle (2). A mounting groove (103) is provided on the bottom of the outer cylinder (1), an inner cylinder (5) is movably mounted on the screw (4), and the screw (4) and the inner cylinder (5) are both located in the mounting groove (103).

3. The handheld firework outer cylinder as claimed in claim 2, characterized in that: The size of the baffle plate (2) matches the groove (101), and two slots (102) are symmetrically provided in the groove (101). Two support rods (201) are symmetrically provided on one side wall of the baffle plate (2), and the support rods (201) are embedded in the slots (102). A screw hole (501) is provided in the middle of the inner tube (5), and the screw rod (4) is threadedly connected to the screw hole (501).

4. The handheld firework outer cylinder as claimed in claim 3, characterized in that: A buckle (202) is provided on one side of the support rod (201); the inner cylinder (5) is in the shape of a truncated cone; a plurality of slide grooves (502) are provided on the side wall of the inner cylinder (5); the slide grooves (502) are arranged equidistantly around the inner cylinder (5).

5. The handheld firework outer cylinder as claimed in claim 4, characterized in that: The buckle (202) is embedded in the slide groove (502), and the buckle (202) can slide in the slide groove (502).

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