Single-barrel firework convenient to twist

Abstract

The utility model discloses a single-barrel small firework convenient to twist, which comprises a barrel body and a top cover arranged at the top of the barrel body, a knob is movably mounted at the bottom of the barrel body, a support is arranged at the top of the knob, a sleeve is further arranged in the barrel body, a baffle is arranged in the sleeve, a pull rod is arranged at the top of the support, a spring is sleeved on the pull rod, the pull rod penetrates through a circular groove, and a plurality of lock catches are arranged at the top of the pull rod. The spring and the lock catch are arranged and matched with the baffle to fix the sleeve, during use, only the knob needs to be rotated to drive the lock catch to rotate from the groove to the notches, at the moment, the lock catch does not limit the baffle any more, the sleeve is pushed to ascend at a high speed through the action of the spring, and the sleeve is fixed through the baffle. And a high-pressure gas tank does not need to be used, so that the problem that after a traditional firework barrel is stored for a long time, gas in the high-pressure gas tank in the traditional firework barrel overflows, and fireworks cannot be sprayed out successfully is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks production, in particular to a single-barrel small fireworks with convenient twisting. Background Art

[0002] A fireworks tube is a device that can spray decorations such as glitter and paper pieces. People generally use it to increase the festive atmosphere. The existing fireworks tubes are generally cylindrical, and a high-pressure gas tank is provided at the bottom. When in use, a person twists the bottom of the fireworks tube by hand to unlock the high-pressure gas tank to spray high-pressure air flow, and drives the decorations inside the fireworks tube to be ejected through the high-pressure air flow. However, after the high-pressure gas tank is stored for a long time, the gas inside it will overflow, and there will be a situation where the air pressure is insufficient during use, resulting in the failure of the fireworks to be ejected, affecting people's use. Therefore, a single-barrel small fireworks with convenient twisting is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to solve any of the above technical problems, and thus propose a single-barrel small fireworks with convenient twisting, including a barrel body and a top cover provided at the top thereof. A knob is movably installed at the bottom of the barrel body, and a support is provided at the top of the knob. A sleeve is further provided inside the barrel body, and a baffle is provided inside the sleeve. A circular groove is opened in the middle of the baffle. A pull rod is provided at the central position of the top of the support, a spring is sleeved on the pull rod, the pull rod passes through the circular groove, and a plurality of locking buckles are provided at the top of the pull rod, and the locking buckles are located above the baffle.

[0004] Further, an inner cavity is provided between the sleeve and the top cover, and decorations are placed inside the inner cavity.

[0005] Further, a limiting ring and a clamping strip are provided on the inner wall of the barrel body, and the clamping strip is located at the bottom of the limiting ring. A plurality of clamping grooves are equidistantly and circumferentially provided at the bottom of the sleeve.

[0006] Further, the number of the clamping strips is the same as that of the clamping grooves, and they are arranged equidistantly and circumferentially. The positions of the clamping strips and the clamping grooves correspond to each other, and the clamping strips are clamped and installed in the clamping grooves.

[0007] Further, a plurality of buckles are equidistantly and circumferentially provided on the side wall of the support, and a plurality of sliding grooves are provided on the inner wall of the barrel body. The number of the sliding grooves is the same as that of the buckles, and the buckles are slidably installed in the sliding grooves.

[0008] Further, the top of the spring is fixedly connected to the bottom of the sleeve. A plurality of notches and grooves are provided on the baffle, and the notches and grooves are arranged alternately. The number of the notches and grooves is the same as that of the locking buckles, and the two sides of the grooves are inclined planes.

[0009] Beneficial effects: Through the arrangement of the spring and the lock catch, and in cooperation with the baffle to fix the sleeve, when in use, only need to rotate the knob to drive the lock catch to rotate from the groove to the notch. At this time, the lock catch no longer restricts the baffle, and the sleeve is pushed to rise rapidly by the action of the spring. The ornament at the top of the sleeve is ejected by the sleeve, without using a high-pressure gas cylinder, effectively solving the problem that the gas in the high-pressure gas cylinder inside the traditional fireworks tube overflows after long-term storage, resulting in the failure of the fireworks ejection. Brief Description of the Drawings

[0010] Figure 1 is the overall structural schematic diagram of the present utility model;

[0011] Figure 2 is the cross-section of the present utility model Figure 1 ;

[0012] Figure 3 is the cross-section of the present utility model Figure 2 ;

[0013] Figure 4 is Figure 3 the explosion diagram of;

[0014] Figure 5 is the cross-sectional view of the sleeve of the present utility model;

[0015] Reference Signs:

[0016] Cylinder body 1; Inner cavity 101; Limiting ring 102; Card strip 103; Slide groove 104; Top cover 2; Knob 3; Support 301; Snap fastener 302; Pull rod 4; Lock catch 401; Spring 5; Sleeve 6; Card slot 601; Baffle 7; Round groove 701; Notch 702; Groove 703. Detailed Description of the 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, the 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 single-barrel small fireworks with convenient twisting according to an embodiment of the present utility model will be described with reference to the accompanying drawings, as Figures 1 to 5As shown in the figure, the single-tube small fireworks with convenient twisting includes a barrel body 1 and a top cover 2 provided at the top thereof. A knob 3 is movably installed at the bottom of the barrel body 1. A support 301 is provided at the top of the knob 3. A sleeve 6 is further provided inside the barrel body 1. A baffle 7 is provided inside the sleeve 6. A circular groove 701 is opened in the middle of the baffle 7. A pull rod 4 is provided at the central position of the top of the support 301. A spring 5 is sleeved on the pull rod 4. The pull rod 4 passes through the circular groove 701. A plurality of locking catches 401 are provided at the top of the pull rod 4. The locking catches 401 are located above the baffle 7.

[0020] Preferably, an inner cavity 101 is provided between the sleeve 6 and the top cover 2. Decorations are placed in the inner cavity 101. When the sleeve 6 rises at a high speed, it will drive the decorations in the inner cavity 101 to break open the top cover 2 and spray out.

[0021] Preferably, a limiting ring 102 and a clamping strip 103 are provided on the inner wall of the barrel body 1. The clamping strip 103 is located at the bottom of the limiting ring 102. A plurality of clamping grooves 601 are equidistantly arranged around the bottom of the sleeve 6.

[0022] Preferably, the number of the clamping strips 103 is the same as that of the clamping grooves 601, and they are arranged equidistantly in a circular manner. The positions of the clamping strips 103 and the clamping grooves 601 correspond to each other, and the clamping strips 103 are snap-fitted and installed in the clamping grooves 601.

[0023] In a specific embodiment: Through the arrangement of multiple groups of clamping strips 103 and clamping grooves 601, the sleeve 6 can only move up or down along the clamping strips 103. The limiting ring 102 limits the rising distance of the sleeve 6 to prevent the sleeve 6 from rushing out of the barrel body 1. At the same time, when the spring 5 drives the sleeve 6 to rise at a high speed, a sound will be made when the sleeve 6 collides with the limiting ring 102 to simulate the sound of firecrackers and assist in increasing the festive atmosphere.

[0024] Preferably, a plurality of buckles 302 are equidistantly arranged around the side wall of the support 301. A plurality of sliding grooves 104 are provided on the inner wall of the barrel body 1. The number of the sliding grooves 104 is the same as that of the buckles 302. The buckles 302 are slidably installed in the sliding grooves 104.

[0025] In a specific embodiment: Through the arrangement of the buckles 302 and the sliding grooves 104, the rotation amplitude of the knob 3 can be limited. The knob 3 can only rotate a maximum of 60° each time. At the same time, by providing anti-slip patterns on the surface of the knob 3, it is convenient to rotate the knob 3 and make its twisting more convenient.

[0026] Preferably, the top of the spring 5 is fixedly connected to the bottom of the sleeve 6. A plurality of notches 702 and grooves 703 are provided on the baffle 7. The notches 702 and the grooves 703 are arranged alternately. The number of the notches 702 and the grooves 703 is the same as that of the locking catches 401. The two sides of the groove 703 are inclined surfaces. By setting the two sides of the groove 703 as inclined surfaces, the locking catch 401 can be rotated more easily to be disengaged from the groove 703 and make its twisting more convenient.

[0027] In a specific embodiment: The size of the latch 401 is slightly smaller than the size of the notch 702. The included angle between the axis of the notch 702 and the axis of the groove 703 is 60°. By clamping and fixing the latch 401 in the groove 703 on the baffle 7, at this time, the sleeve 6 compresses the spring 5 to store energy. When in use, rotate the knob 3 to drive the pull rod 4 to rotate. Through the arrangement of the buckle 302 and the chute 104, the knob 3 can only rotate a maximum of 60° each time. The knob 3 drives the pull rod 4 to rotate 60°. The pull rod 4 drives the latch 401 at its top to rotate 60° on the baffle 7. When the latch 401 rotates, it will disengage from the groove 703 and finally rotate to the notch 702. At this time, the latch 401 and the notch 702 coincide with each other, and the latch 401 no longer restricts the baffle 7. Under the action of the spring 5, it will push the sleeve 6 to rise at high speed, and the sleeve 6 will eject the ornament at its top. Without using a high-pressure gas cylinder, it effectively solves the problem that the gas in the high-pressure gas cylinder inside the traditional confetti cannon overflows after long-term storage, resulting in the failure of the confetti ejection.

[0028] Among them, through the setting of the spring 5, after use, the sleeve 6 can be pushed downward to recompress the spring 5, and at the same time drive the notch 702 on the baffle 7 to pass through the latch 401 at the top of the pull rod 4. Then rotate the knob 3 to drive the latch 401 to rotate from the notch 702 to the groove 703. Then release the sleeve 6. Under the action of the spring 5, it will push the baffle 7 inside the sleeve 6 to contact the latch 401, and the latch 401 will fix the sleeve 6 again. And at this time, the spring 5 is in a compressed energy storage state, and finally the device is restored, which is convenient for repeated use and more energy-saving and environmentally friendly.

[0029] Working principle: When in use, hold the barrel 1 to fix it, and then rotate the knob 3 to drive the pull rod 4 to rotate. Through the arrangement of the buckle 302 and the chute 104, the knob 3 can only rotate a maximum of 60° each time. The knob 3 drives the pull rod 4 to rotate 60°. The pull rod 4 drives the latch 401 at its top to rotate 60° on the baffle 7. When the latch 401 rotates, it will disengage from the groove 703 and finally rotate to the notch 702. At this time, the latch 401 and the notch 702 coincide with each other, and the latch 401 no longer restricts the baffle 7. Under the action of the spring 5, it will push the sleeve 6 to rise at high speed, and the sleeve 6 will eject the ornament at its top. Without using a high-pressure gas cylinder, it effectively solves the problem that the gas in the high-pressure gas cylinder inside the traditional confetti cannon overflows after long-term storage, resulting in the failure of the confetti ejection.

Claims

1. A single-tube small firework that is easy to twist, comprising a tube body (1) and a top cover (2) arranged on the top thereof, a knob (3) is movably mounted on the bottom of the tube body (1), a support (301) is arranged on the top of the knob (3), and a sleeve (6) is further arranged inside the tube body (1), characterized in that: A baffle (7) is provided in the sleeve (6), a circular groove (701) is provided in the middle of the baffle (7), a pull rod (4) is provided at the central position of the top of the support (301), a spring (5) is sleeved on the pull rod (4), the pull rod (4) passes through the circular groove (701), a plurality of lock buckles (401) are provided on the top of the pull rod (4), and the lock buckles (401) are located above the baffle (7).

2. The single-tube small firework with easy twisting as claimed in claim 1, characterized in that: An inner cavity (101) is provided between the sleeve (6) and the top cover (2), and a decorative object is placed in the inner cavity (101).

3. The single-tube small firework with easy twisting as claimed in claim 1, characterized in that: A limiting ring (102) and a clamping strip (103) are provided on the inner wall of the cylinder (1); the clamping strip (103) is located at the bottom of the limiting ring (102); and a plurality of clamping grooves (601) are equidistantly arranged around the bottom of the sleeve (6).

4. The single-tube small firework with easy twisting as claimed in claim 3, characterized in that: The number of the card strips (103) is the same as the card slots (601), which are arranged equidistantly around each other. The positions of the card strips (103) and the card slots (601) correspond to each other, and the card strips (103) are embedded in the card slots (601).

5. The single-tube small firework with easy twisting as claimed in claim 1, characterized in that: A plurality of buckles (302) are equidistantly arranged on the side wall of the support (301), a plurality of slide grooves (104) are arranged on the inner wall of the cylinder (1), the number of the slide grooves (104) is the same as the number of the buckles (302), and the buckles (302) are slidably installed in the slide grooves (104).

6. The single-tube small firework with easy twisting as claimed in claim 1, characterized in that: The top of the spring (5) is fixedly connected to the bottom of the sleeve (6); a plurality of notches (702) and grooves (703) are provided on the baffle (7); the notches (702) and grooves (703) are arranged in a staggered manner; the number of the notches (702) and grooves (703) is the same as the number of the lock buckle (401); and both sides of the groove (703) are inclined surfaces.

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