A type of firework stick with an external hopper

Abstract

A firework stick with an external feed bin includes: a handle, an internal gas box, a gas outlet mechanism, and an ignition mechanism; a firework tube disposed at the upper end of the handle, having an inner tube extending along its length and a chamber located outside the inner tube, with several discharge ports at the connection between the bottom of the inner tube and the chamber, and a nozzle at the upper end of the inner tube with an atomizing mixing chamber at the bottom of the nozzle; a cap disposed at the upper end of the firework tube, closing the upper end of the firework tube, with the center of the cap extending towards the bottom of the firework tube to form a conversion ring, the conversion ring being fitted around the outer side of the inner tube, and the cap having a first state of closing the discharge ports and a second state of exposing the discharge ports; a feed bin detachably disposed on either side of the firework tube, and the feed bin communicating with the chamber; and the ignition end of the ignition mechanism being disposed within the atomizing mixing chamber. By adding an external feed bin, the capacity for adding metal powder is increased, resulting in a longer firework duration, making it more suitable for festive use, while also facilitating disassembly.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a firework stick with an external hopper. Background Technology

[0002] Traditional fireworks, made with gunpowder, explode when ignited, bursting through the paper tube to create sound, smoke, and a fiery red carpet. The ignition point of the gunpowder in these fireworks ranges from 800 to 1200 degrees Celsius, posing a significant risk of burns and requiring a fire-resistant environment to prevent ignition. Fireworks also produce large amounts of dense smoke, causing severe environmental pollution. Furthermore, the manufacturing, processing, and transportation processes can pose dangerous risks. In response, a new alternative, cold fireworks, has been introduced to the market. These are made from metal powder with a lower ignition point, ranging from 60 to 80 degrees Celsius.

[0003] However, this type of cold fireworks can only hold a limited amount of metal powder, resulting in a shorter duration of ignition during celebrations. Furthermore, because it is reusable, it needs to be refilled with metal powder after each use; the small filling opening makes refilling difficult, making it inconvenient to use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a firework stick with an external material bin.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A firework stick with an external feed hopper, comprising: The handle has a built-in gas box, gas outlet mechanism, and ignition mechanism. A firework tube is located at the upper end of the handle. It has an inner tube extending through the length direction and a chamber located outside the inner tube. Several discharge ports are provided at the connection between the bottom of the inner tube and the chamber. The upper end of the inner tube is configured as a nozzle. A screw cap is provided at the upper end of the firework tube and closes the upper opening of the chamber. The center of the screw cap extends towards the bottom of the firework tube to form a conversion ring. The conversion ring is sleeved on the outside of the inner tube. The screw cap has a first state of closing the outlet and a second state of exposing the outlet. The material bin is detachably installed on either side of the firework tube, and the material bin is connected to the chamber. The ignition end of the ignition mechanism is located below the nozzle.

[0006] The outer wall of the firework tube is provided with a connection hole that communicates with the chamber, and one end of the hopper is detachably connected to the connection hole.

[0007] The cap and the firework tube are threaded together.

[0008] The discharge ports are spaced apart along the circumference of the inner tube.

[0009] A metal impeller is provided below the nozzle, and the ignition end of the ignition mechanism is located close to the metal impeller.

[0010] The handle surface is provided with a button, one end of which is hinged to the upper end of the air box. The air box is also provided with a piezoelectric element. A pressure rod is rotatably provided at the upper end of the air box. One end of the pressure rod abuts against the piezoelectric element, and the other end is located near the button. It can be rotated relative to the button and press the piezoelectric element.

[0011] The handle surface is also provided with a ignition control slider, which can move along the handle surface and restricts button operation after movement.

[0012] The ignition switch is provided with a buckle on the rear side. Any one of the buckles extends inward to form a limiting block, and the upper end of the button extends upward to form a protrusion that matches the limiting block.

[0013] The thickness of the protrusion is less than the gap between the limiting block and the firing slider.

[0014] The beneficial effects of this utility model are: by adding an external hopper, the capacity for adding metal powder is increased, which extends the fireworks duration and makes them more suitable for festival use, while also making disassembly convenient. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 for Figure 1 A cross-sectional view of point AA.

[0017] Figure 3 This is a partial schematic diagram of the transition ring of this utility model in the second state.

[0018] Figure 4 This is a schematic diagram of the internal structure of the handle of this utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the handle of this utility model (from another angle).

[0020] Figure 6 This is a partially enlarged schematic diagram of the upper part of the gas box of this utility model.

[0021] Figure 7 This is a cross-sectional view of the ignition control slide of this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] like Figure 1 and Figure 2 As shown, this utility model discloses a firework stick with an external feed hopper, which includes a handle, a firework tube, and a screw cap arranged coaxially. Both the handle and the firework tube are cylindrical. The handle 100 serves as a handheld position and is made of insulating material, such as plastic, while the firework tube can be made of metal. The handle and the firework tube are fixed together by snap-fit ​​or directly connected by screws. The handle includes a gas box and a shell. The upper end of the gas box has a support arm, and the firework tube is directly screwed to the support arm. The shell is fitted onto the outside of the gas box and has a rear cover at its bottom, achieving a fixed connection between the three components and simplifying installation. The upper end of the gas box is machined into multiple mounting positions for installing a gas outlet mechanism and an ignition mechanism. The ignition mechanism uses a piezoelectric generator. When the discharge end (i.e., the ignition end) of the piezoelectric generator is pressurized, it generates an electric spark, which ignites the combustible gas discharged by the gas outlet mechanism.

[0025] Handle 100, with built-in gas box 700, gas outlet mechanism 800 and ignition mechanism; Firework tube 200 is disposed at the upper end of the handle 100. It has an inner tube 210 that runs through the length direction and a chamber 220 disposed outside the inner tube 210. The bottom of the inner tube 210 and the chamber 220 are provided with a plurality of discharge ports 211. The upper end of the inner tube 210 is provided as a nozzle 230. The inner tube is longer than the chamber, and the bottom of the chamber is sloped or conical, tilting towards the outlet to facilitate the discharge of combustible metal powder from the outlet. The powder is then carried upwards along the inner tube by combustible gas, which impacts the metal impeller, creating a dispersion effect. This ignites the powder, simultaneously setting it ablaze and igniting the metal powder discharged with it, thus creating a fireworks effect. The combustible powder is titanium powder or zirconium powder.

[0026] The gas outlet mechanism 800 includes a gas outlet valve mounted on the gas box and a gas outlet head connected to the gas outlet valve. The gas outlet head is located close to the inner tube, and the gas is discharged from the gas outlet head through the gas outlet valve and discharged upward along the inner tube. At the same time, it can also drive the combustible powder to move upward.

[0027] A screw cap 300 is provided at the upper end of the firework tube 200 and closes the upper opening of the chamber 220. The center of the screw cap 300 extends towards the bottom of the firework tube to form a conversion ring 310. The conversion ring 310 is sleeved on the outside of the inner tube 210. The screw cap 300 has a first state of closing the outlet and a second state of exposing the outlet. The specific circumferential sidewall of the cap is located inside or outside the firework tube and forms a threaded fit with it. Thus, the cap can move up and down relative to the firework tube, which in turn causes the conversion ring to move up and down relative to it, thereby achieving the switching between the first state and the second state.

[0028] In some other embodiments, the cap can be slidably positioned in a straight line with the firework tube, and the state of the switching ring can be switched by pushing up and pressing down.

[0029] In this embodiment, the screw cap is rotated to bring it to the second state. At this time, the chamber is connected through the outlet of the inner tube. Then, the ignition mechanism in the handle is activated. By shaking the handle, the metal powder can enter the inner tube and be carried upward by the combustible gas. It is then ignited at the nozzle and sprayed out to form a flame.

[0030] To further increase the amount of metal powder, an external hopper 400 is added, which can be detachably installed on either side of the firework tube 200. The hopper 400 is connected to the chamber 220. The outer wall of the firework tube 200 is provided with a connection hole that communicates with the chamber. One end of the hopper 400 is detachably connected to the connection hole. Metal powder can be replenished by disassembling the hopper, which is a relatively safe and reliable method, and the capacity that can be added is also relatively large.

[0031] The discharge port 211 is arranged at intervals around the inner tube 210 to ensure that the metal powder can be shaken and enter the inner tube from any direction.

[0032] Since the exhaust mechanism discharges atomized gas, which needs to be dispersed before it can be ignited by piezoelectric electrons, a metal impeller 212 is provided below the nozzle. The ignition end of the ignition mechanism is in contact with the metal impeller 212. The blades disperse the atomized gas, while the discharge line of the piezoelectric electrons is close to the metal impeller but does not contact it. It will ignite the gas and produce an open flame.

[0033] The ignition end of the ignition mechanism is located below the nozzle. In this embodiment, the discharge wire of the piezoelectric electron is extended to the bottom of the nozzle through the inner tube. In order to avoid the discharge wire from contacting the inner tube wall, it is preferable to use a coil spring to center the discharge wire. Since the electric spark generated by the discharge wire is upward, it will only ignite the gas located above the discharge wire and will not affect the discharge wire inside the inner tube.

[0034] like Figure 1 and Figure 6 As shown, the handle 100 has a button 500 on its surface. One end of the button 500 is hinged to the upper end of the air box 700. The air box 700 also has a piezoelectric element 710. A pressure rod 720 is rotatably provided on the upper end of the air box 700. One end of the pressure rod 720 presses against the piezoelectric element 710, and the other end is located near the button 500. It can be rotated relative to the button 500 and press the piezoelectric element 710.

[0035] The button is hinged at the bottom, forming a push-button structure. Pressing the button causes its upper part to rotate relative to the hinge point, which in turn rotates the pressure rod that abuts against it. This causes the pressure rod to press the electron-pumping end against the electron, achieving discharge ignition. The pressure rod is centrally hinged to the upper end of the gas chamber and is preferably fixed by a bracket, allowing it to rotate relative to the button. To increase the contact area between the pressure rod and the button, one end of the pressure rod extends in the width direction to form a linkage rod, such as... Figure 7 As shown, this allows it to be better driven by the button.

[0036] like Figure 1 and Figure 5 As shown, the handle 100 surface is also provided with a ignition control slider 600. The ignition control slider 600 can move along the surface of the handle 100, and after moving, it restricts the action of the button 500. In this embodiment, the movement is along the surface of the handle, specifically a lateral movement, which restricts the action of the button. This restriction can restrict button pressing or button reset, thus serving as a safety lock and ignition control switch.

[0037] The ignition switch 600 has a latch on its rear side, with any one of the latches extending inward to form a limiting block 610. The upper end of the button 500 extends upward to form a protrusion 510 that matches the limiting block 610. The thickness of the protrusion 510 is less than the gap between the limiting block 610 and the ignition switch 600. When used as a safety lock, in the button reset state, moving the ignition switch causes it to move accordingly, and the protrusion engages in the gap, thus restricting the button from being pressed. When used as an ignition switch, after pressing the button, sliding the ignition switch utilizes the outer side of the limiting block and the protrusion to form a limiting engagement, thus restricting the button from resetting and maintaining the ignition state. In this case, the sleeve can also be opened to allow for long-term use of the sparkler without constantly pressing the button, making it more labor-saving.

[0038] like Figure 7 As shown, the handle has a certain space inside, which allows the ignition slider to move laterally. By adjusting the positional relationship between the ignition slider and the button, different states can be achieved. At the same time, when it moves to the initial position, it will not affect the operation of the button.

[0039] like Figure 4 As shown, the handle is also provided with a rotating ring 900. The ring adjusts the air output of the air valve through the inner ring linked with it. The inner ring has an internal thread, and the outer side of the air valve has an external thread. The two are threaded together, thereby realizing the adjustment of the air output of the air valve.

[0040] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A firework stick with an external feed hopper, characterized in that: It includes: Handle (100), with built-in gas box (700), gas outlet mechanism (800) and ignition mechanism; Firework tube (200) is provided at the upper end of the handle (100), and has an inner tube (210) that runs through it along the length direction and a chamber (220) provided outside the inner tube (210). The bottom of the inner tube (210) and the connection between the chamber (220) are provided with a plurality of discharge ports (211), and the upper end of the inner tube (210) is provided as a nozzle (230). A screw cap (300) is provided at the upper end of the firework tube (200) and closes the upper opening of the chamber (220). The center of the screw cap (300) extends towards the bottom of the firework tube to form a conversion ring (310). The conversion ring (310) is sleeved on the outside of the inner tube (210). The screw cap (300) has a first state of closing the outlet and a second state of exposing the outlet. The hopper (400) is detachably mounted on either side of the firework tube (200), and the hopper (400) is connected to the chamber (220); The ignition end of the ignition mechanism is located below the nozzle (230).

2. The firework stick with an external hopper according to claim 1, characterized in that: The outer wall of the firework tube (200) is provided with a connection hole that communicates with the chamber, and one end of the hopper (400) is detachably connected to the connection hole.

3. A firework stick with an external hopper according to claim 1 or 2, characterized in that: The screw cap (300) and the firework tube (200) are threaded together.

4. The firework stick with an external hopper according to claim 1, characterized in that: The discharge port (211) is arranged at intervals along the circumference of the inner tube (210).

5. A firework stick with an external hopper according to claim 1, characterized in that: A metal impeller (212) is provided below the nozzle, and the ignition end of the ignition mechanism is located near the metal impeller (212).

6. A firework stick with an external hopper according to claim 1, characterized in that: The handle (100) has a button (500) on its surface. One end of the button (500) is hinged to the upper end of the air box (700). The air box (700) also has a piezoelectric element (710). A pressure rod (720) is rotatably provided on the upper end of the air box (700). One end of the pressure rod (720) presses against the piezoelectric element (710), and the other end is set close to the button (500). It can be rotated relative to the button (500) and press the piezoelectric element (710).

7. A firework stick with an external hopper according to claim 6, characterized in that: The handle (100) surface is also provided with a ignition switch (600), which can move along the surface of the handle (100) and restricts the action of the button (500) after movement.

8. A firework stick with an external hopper according to claim 7, characterized in that: The ignition switch (600) has a buckle on its rear side. Any one of the buckles extends inward to form a limiting block (610). The upper end of the button (500) extends upward to form a protrusion (510) that matches the limiting block (610).

9. A firework stick with an external hopper according to claim 8, characterized in that: The thickness of the protrusion (510) is less than the gap between the limiting block (610) and the firing slider (600).

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