Imitation firework spraying device

Abstract

The utility model relates to the technical field of firework devices, in particular to an imitated firework spraying device which comprises a shell, an ignition rod, a motor and a power supply device, the motor is installed at the bottom of the shell, and a friction wheel is arranged on a rotating shaft of the motor; a hole groove is formed in the shell, the ignition rod is placed in the hole groove, and the bottom of the ignition rod abuts against the friction wheel. The bottom of the shell is provided with a nozzle, and the opening height of the nozzle is matched with the height of the contact position of the ignition rod and the friction wheel. The firework device has the advantages that when the firework device is used, the ignition rod is directly placed in the hole groove of the shell and abuts against the friction wheel through the dead weight of the ignition rod, after the motor is started, the friction wheel rubs the ignition rod to generate sparks, and the sparks are jetted out from the nozzle at the bottom of the shell to form the firework effect; the scheme is simple in structure, small in size and convenient for a user to hold and play; and by installing the nozzle, the ignition rod can be prevented from being consumed too fast, the spark spraying time can be prolonged, sparks can be gathered, and the light sensation effect of the fireworks is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks devices, in particular to an imitation spray fireworks device. Background Art

[0002] Fireworks are entertainment items that create colorful patterns in the dark by utilizing the flame color reactions of different metal elements and adding luminescent and color-forming agents. However, traditional fireworks release harmful gases such as sulfur dioxide, nitrogen dioxide, and carbon monoxide during the display process, significantly increasing PM10 and PM2.5 levels in the air and causing air pollution.

[0003] In response to the above problems, the applicant applied for a Chinese patent with patent number CN221882344U, entitled "A device for imitating fireworks spraying". The device includes a shell, a drive motor located inside the shell, a friction disc, a fire stick and a power supply device. The drive motor drives the friction disc to rotate, and the friction disc generates sparks by contacting and rubbing with the fire stick. Since the end of the friction rod is located at a position tangentially upward along the rotation direction of the friction disc, the sparks can be ejected upward from the shell along the tangential direction of the contact position under the action of centrifugal force, producing a fireworks effect.

[0004] However, this solution also has some shortcomings. First, the elastic part in the device keeps pressing the fire stick, causing the fire stick to stick to the friction wheel, causing the fire stick to be consumed too quickly, which will shorten the spark spraying time. In addition, the fire stick abuts against the outer edge or side of the friction disk on the side of the shell, resulting in a large size and complex structure, which affects the user experience during use. Utility Model Content

[0005] In order to solve the problems in the prior art of simulated spray fireworks devices that the elastic parts press the spark rod tightly, resulting in a short spark spraying time, the spark rod being on the side of the shell, and the large size and complex structure, the utility model provides a new simulated spray fireworks device, which has the characteristics of long spark spraying time, simple structure and small size.

[0006] To achieve the above-mentioned purpose, the utility model provides a device for imitating fireworks spraying, comprising a shell, a fire stick, a motor and a power supply device, wherein the motor is mounted at the bottom of the shell, and a friction wheel is provided on the rotating shaft of the motor; a hole groove is provided in the shell, the fire stick is placed in the hole groove, and the bottom of the fire stick abuts against the friction wheel; a nozzle is provided at the bottom of the shell, and the opening height of the nozzle matches the height of the contact position between the fire stick and the friction wheel.

[0007] Furthermore, a counterweight is included, which is placed in the hole and located on the top of the fire stick.

[0008] Furthermore, the counterweight is another fire stick.

[0009] Furthermore, a nozzle is included, which is installed at the nozzle outlet through a connecting piece, and the nozzle opening is arc-shaped.

[0010] Furthermore, a socket is provided on the side of the shell, and a baffle for limiting the counterweight is provided in the socket.

[0011] Furthermore, the motor is installed in the auxiliary housing, and the auxiliary housing is plugged into the bottom side of the housing.

[0012] Furthermore, the contact point between the fire stick and the friction wheel is located at a position tangent to the nozzle along the rotation direction of the friction wheel, and the opening angle of the nozzle matches this position.

[0013] The beneficial effects of the utility model are:

[0014] 1. When in use, place the fire stick directly in the hole groove of the shell, use the weight of the fire stick to abut against the friction wheel, start the motor, and the friction wheel rubs the fire stick to generate sparks, which are ejected from the nozzle at the bottom of the shell to form a fireworks effect; compared with the existing solution of pressing the fire stick with an elastic member, this solution can prevent the fire stick from being consumed too quickly and help to increase the spark ejection time. The structure of this solution is simple, the volume is small, and it is convenient for users to hold and play with it;

[0015] 2. By installing the nozzle, you can not only control the angle of the sparks, but also gather the sparks to enhance the light effect of the fireworks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the utility model imitation fireworks device;

[0017] Figure 2 This is an explosion structure diagram of the utility model imitation spray fireworks device;

[0018] Figure 3 This is a cross-sectional view of the utility model's imitation fireworks device;

[0019] Figure 4 This is another structural schematic diagram of the utility model imitation fireworks device;

[0020] In the figure: 1. Shell; 2. Fire stick; 3. Motor; 4. Friction wheel; 5. Hole slot; 6. Nozzle; 7. Counterweight; 8. Nozzle; 9. Socket; 10. Baffle; 11. Sub-shell; 12. Power supply unit. DETAILED DESCRIPTION

[0021] The following is a further description of the fireworks-imitating device of the present invention in conjunction with specific embodiments.

[0022] A device for imitating fireworks spraying includes a shell 1, a fire stick 2, a motor 3 and a power supply device 12. The motor 3 is mounted at the bottom of the shell 1, and a friction wheel 4 is provided on the rotating shaft of the motor 3. A hole groove 5 is provided in the shell 1, and the fire stick 2 is placed in the hole groove 5, and the bottom of the fire stick 2 abuts against the friction wheel 4. A nozzle 6 is provided at the bottom of the shell 1, and the opening height of the nozzle 6 matches the height of the contact position between the fire stick 2 and the friction wheel 4.

[0023] During use, the fire stick 2 is simply placed directly into the slot 5 of the housing 1, and the weight of the fire stick 2 is used to abut against the friction wheel 4. After starting the motor 3, the friction wheel 4 rubs the fire stick 2 to generate sparks, which are then ejected from the nozzle 6 at the bottom of the housing 1, creating the effect of ejecting fireworks. Compared with the prior art solution of pressing the fire stick with an elastic member, this solution can prevent the fire stick from being consumed too quickly and help to increase the spark ejection time. It is not only simple in structure but also compact in size, greatly facilitating the user's grip and play, and is conducive to its widespread application.

[0024] In this embodiment, the friction wheel can be an aluminum oxide grinding wheel, a silicon carbide grinding wheel, a zirconium oxide grinding wheel or a diamond sheet, and the sparking rod can be an iron rod, a magnesium alloy rod or a ferrocerium alloy.

[0025] Preferably, a counterweight 7 is further included, which is placed in the hole 5 and located on the top of the fire stick 2. In this embodiment, the counterweight 7 is a steel ball. When the fire stick 2 produces sparks on the friction wheel 4, its length will gradually consume and shorten. At this time, the fire stick 2 relies on its own weight to contact the friction wheel 4, which is prone to jumping, resulting in discontinuous sparks generated by friction. The counterweight 7 falls on the top of the fire stick 2, which can provide pressure for the fire stick 2 and ensure that the fire stick 2 continues to work normally.

[0026] In other embodiments, the counterweight is another fire stick, which can provide downward force for the original fire stick and can also be replenished when the original fire stick is consumed.

[0027] Preferably, the device further includes a nozzle 8, which is mounted at the nozzle 6 via a connector, and has an arc-shaped opening. When the fire stick 2 rubs against the friction wheel 4 to generate sparks, the angle at which the sparks are ejected is related to the contact position and rotational speed of the friction wheel 4, and is likely to splash in a tangential direction. By installing the nozzle 8 at the nozzle 6, the sparks can be directed outward along the arc-shaped opening of the nozzle 8. In this embodiment, a magnet is provided on the nozzle 8, and an iron sheet is correspondingly mounted at the nozzle 6 for adsorption by the magnet. The nozzle 8 can also be fixed to the nozzle position by a snap-fit structure.

[0028] Preferably, a socket 9 is provided on the side of the housing 1, and a baffle 10 is provided inside the socket 9 for limiting the counterweight 7. When the fire stick 2 produces sparks on the friction wheel 4, its length will gradually consume and shorten. At this time, the baffle 10 can be pulled out to allow the counterweight 7 to fall on the top of the fire stick 2, providing pressure to the fire stick 2 and ensuring that the fire stick 2 continues to work normally.

[0029] Preferably, the motor 3 is mounted within a sub-housing 11, which is plugged into the bottom side of the housing 1. The sub-housing 11 is a hollow structure with one side open. A gasket is provided on the sidewall of the hollow cavity for housing the motor 3 and the power supply 12. In this embodiment, the power supply 12 is a battery that provides power to the motor. The motor 3 is a micro rotary motor.

[0030] Preferably, the contact point between the fire stick and the friction wheel is located at a position tangential to the nozzle along the direction of rotation of the friction wheel, and the nozzle opening angle matches this position. In the present embodiment, the horizontal angle of the hole slot 5 is 90°, that is, it is arranged vertically, and the top of the friction wheel 4 directly contacts and rubs against the bottom of the fire stick 2. In some embodiments, it can also be tilted to adjust the contact position so that the bottom side of the fire stick 2 contacts and rubs against different positions of the upper surface of the friction wheel 4 near the nozzle arc (the upper quarter arc surface of the friction wheel), thereby ejecting sparks out of the nozzle opening along different tangential angles.

Claims

1. A device for imitating fireworks, comprising a housing (1), a fire stick (2), a motor (3) and a power supply (12), characterized in that: The motor (3) is mounted on the bottom of the housing (1), and a friction wheel (4) is provided on the rotating shaft of the motor (3); a hole groove (5) is provided in the housing (1), and the fire stick (2) is placed in the hole groove (5), and the bottom of the fire stick (2) abuts against the friction wheel (4); a nozzle (6) is provided at the bottom of the housing (1), and the opening height of the nozzle (6) matches the height of the contact position between the fire stick (2) and the friction wheel (4).

2. The imitation spray fireworks device according to claim 1, characterized in that: The invention also comprises a counterweight (7), which is placed in the hole groove (5) and located on the top of the fire stick (2).

3. The imitation spray fireworks device according to claim 2, characterized in that: The counterweight (7) is another fire stick.

4. The simulated spray fireworks device according to any one of claims 1 to 3, wherein: It also includes a nozzle (8), which is installed at the nozzle opening (6) through a connecting piece, and the opening of the nozzle (8) is arc-shaped.

5. The simulated spray fireworks device according to any one of claims 1 to 3, wherein: A socket (9) is provided on the side of the housing (1), and a baffle (10) for limiting the counterweight (7) is provided in the socket (9).

6. The simulated spray fireworks device according to claim 4, wherein: A socket (9) is provided on the side of the housing (1), and a baffle (10) for limiting the counterweight (7) is provided in the socket (9).

7. The simulated spray fireworks device according to claim 1, 2, 3 or 6, characterized in that: The motor (3) is installed in the auxiliary housing (11), and the auxiliary housing (11) is plugged into the bottom side of the housing (1).

8. The simulated spray fireworks device according to claim 4, wherein: The motor (3) is installed in the auxiliary housing (11), and the auxiliary housing (11) is plugged into the bottom side of the housing (1).

9. The simulated spray fireworks device according to claim 5, wherein: The motor (3) is installed in the auxiliary housing (11), and the auxiliary housing (11) is plugged into the bottom side of the housing (1).

10. The simulated spray fireworks device according to claim 1, 2, 3, 6, 8 or 9, characterized in that: The contact point between the fire stick (2) and the friction wheel (4) is located at a position tangential to the nozzle along the rotation direction of the friction wheel (4), and the nozzle opening angle matches the position.

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