Bamboo dragonfly firework and bamboo dragonfly firework assembly
By setting the paddles and gunpowder layers at intervals and combining external force driving, the problem of melting fireworks in bamboo dragonflies and uncertain flight trajectory is solved, achieving a safe and controllable lift-off effect and a diverse audio-visual experience.
Patent Information
- Application Number
- CN202421801115.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Existing bamboo dragonfly fireworks are prone to melt or burn when combined with gunpowder, and the flight trajectory of jellyfish fireworks is uncertain, which poses safety risks.
The blades and gunpowder layer design are designed with intervals, and the blades are driven to rotate and lift off with external forces, reducing the heat transfer of gunpowder through the spacer and support, and using safe electro-optic gunpowder, combined with a hand-soft rod or screw launch device.
The controllable flight trajectory of bamboo dragonfly fireworks is realized and the safety is improved, the risk of thermal damage to the blades by gunpowder is reduced, the range of gunpowder selection is expanded, and the visual and auditory effects are enhanced.
Smart Images
Figure CN223154125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireworks, in particular to a bamboo dragonfly firework and a bamboo dragonfly firework component. Background Art
[0002] Fireworks, also known as fireworks, are indispensable entertainment items during holidays. The gunpowder of existing fireworks is loaded in the launching device, and the light emitted by the burning is relatively single, lacking the shape produced by the change during the launch process. In the face of the above problems, jellyfish fireworks came into being, which drive the blades to rotate through the thrust generated by the burning of gunpowder, but the flight trajectory of jellyfish fireworks is difficult to determine in actual use. In the instructions for the use of jellyfish fireworks, it is mentioned that after ignition, people should stay away from the fireworks. If they are not set off in an open area, the safety factor of jellyfish fireworks will be greatly reduced. In addition, the gunpowder used in jellyfish fireworks is explosive and the temperature of the flame sprayed is very high, which increases the risk of fireworks during production, transportation and use.
[0003] In order to solve the problem of uncertain trajectory of jellyfish fireworks, technicians in this field can easily think of directly using external force to drive the blades, while the gunpowder on the blades only plays a beautifying role. For example, a structure similar to that of a bamboo dragonfly is used, in which a hand-rubbed rotating rod is used to drive the bamboo dragonfly to rotate and take off. Since the driving force is manually controlled, the problem of the difficult control of the flight trajectory of jellyfish fireworks is solved.
[0004] However, if gunpowder is simply applied to the blades of a bamboo helicopter, the gunpowder will generate a lot of heat during combustion. When the blades of the bamboo helicopter encounter the heat generated by the fireworks, the blades will be melted or even burned by the high temperature, thus affecting the flight of the blades and increasing the risk. Utility Model Content
[0005] Therefore, the technical problem to be solved by the utility model is to overcome the technical problem in the prior art that the bamboo dragonfly is easy to melt or even burn when combined with fireworks, thereby providing a bamboo dragonfly firework and a bamboo dragonfly firework assembly.
[0006] In order to solve the above problems, the technical solution provided by the utility model is as follows:
[0007] A bamboo dragonfly firework, comprising:
[0008] at least two blades, the roots of different blades being connected by an inner disk;
[0009] The gunpowder is spaced apart from the blades, and the gunpowder layer will not generate a force to drive the blades to rotate when burning.
[0010] As a preferred technical solution, it also includes an outer ring, which is fixedly connected to the wing tip of the blade.
[0011] As a preferred technical solution, a spacer layer is provided on the surface of the blade, and the spacer layer is disposed between the gunpowder layer and the blade.
[0012] As a preferred technical solution, the spacer layer is in a groove shape, and the gunpowder layer is accommodated in the groove-shaped spacer layer.
[0013] As a preferred technical solution, the spacer layer has ridges protruding upward, and the gunpowder layer is coated on the surface of the ridges of the spacer layer.
[0014] As a preferred technical solution, one end of the spacer layer extends out of the outer ring, and the gunpowder layer extends out of the outer ring together with the spacer layer.
[0015] As a preferred technical solution, a support member is further included, and the gunpowder layer is spaced apart from the blade through the support member.
[0016] As a preferred technical solution, one side of the support member is fixedly connected to the surface of the blade. After the gunpowder layer is coated on a strip-shaped inner core, it is fixedly installed on the other side of the support member.
[0017] As a preferred technical solution, the support member has a wing portion and a core portion;
[0018] The gunpowder layer is coated on the outer surface of the core portion;
[0019] One end of the wing portion is connected to the core portion, and the other end is fixedly installed on the blade;
[0020] The wing portion is adapted to support the core portion from the surface of the blade, and the core portion and the wing portion are integrally formed.
[0021] As a preferred technical solution, the support member extends along the radial direction of the dragonfly firework. One end of the support member is connected to the inner disc, and the other end is suspended or connected to the outer ring. The gunpowder layer is coated on the support member.
[0022] As a preferred technical solution, a whistle is provided on the outer ring.
[0023] As a preferred technical solution, a hand-rubbing rod is further included, and the hand-rubbing rod is fixedly connected to the inner disc.
[0024] A dragonfly firework assembly includes the above-mentioned dragonfly firework, a screw rod and a hand-pushing cylinder. The hand-pushing cylinder is sleeved on the screw rod. The dragonfly firework is sleeved on the screw rod and is located above the hand-pushing cylinder; an engagement hole adapted to cooperate with the screw rod is provided on the inner disc of the dragonfly firework; the dragonfly firework is adapted to slide upward out of the screw rod under the push of the hand-pushing cylinder and rotate through the cooperation of the engagement hole and the screw rod.
[0025] The technical solution of the present utility model has the following advantages:
[0026] 1. The bamboo dragonfly fireworks provided by the present utility model include: at least two blades, and the roots of different blades are connected by an inner disc; a gunpowder layer, which is arranged at an interval from the blades, and the gunpowder layer does not generate a force to drive the blades to rotate when burning.
[0027] By arranging the blades and the gunpowder layer at an interval, the heat generated when the gunpowder layer burns is weakened in the interval, and the heat transferred to the blades is difficult to melt or burn the blades. At the same time, different from traditional jellyfish fireworks, the gunpowder thrust is used to make the fireworks rotate and lift into the air.
[0028] The gunpowder in the present utility model does not generate thrust. The overall launch adopts mechanical external forces such as a hand rubbing rod or a screw rod, or measures such as electromagnetic force and spring force to realize the launch and lift-off of the bamboo dragonfly. In this way, it can be ensured that the trajectory of the entire bamboo dragonfly fireworks during lift-off is basically determined by the launcher, and the gunpowder thrust will not interfere with the bamboo dragonfly fireworks, thereby making the flight trajectory of the entire bamboo dragonfly fireworks controllable and safer. At the same time, since the gunpowder thrust is not used for the lift-off of the blades, the selection range of gunpowder is wider. For example, safe electro-optical flower gunpowder can be used to produce effects such as light.
[0029] 2. The bamboo dragonfly fireworks provided by the present utility model further include an outer ring, and the outer ring is fixedly connected to the wing tips of the blades to prevent the blades from causing harm to people.
[0030] 3. The bamboo dragonfly fireworks provided by the present utility model, a spacer layer is provided on the upper surface of the blade, and the spacer layer is arranged between the gunpowder layer and the blade. The spacer layer bears the heat generated by the gunpowder layer and dissipates the heat to prevent the blade from deforming due to heat.
[0031] 4. The bamboo dragonfly fireworks provided by the present utility model, the spacer layer is in the shape of a convex rib or a groove. In this way, the bonding between the gunpowder and the spacer layer is more firm, and more stress surfaces will be generated between the spacer layer and the blade, ensuring the firmness when the spacer layer is connected to the blade.
[0032] 5. The bamboo dragonfly fireworks provided by the present utility model, the spacer layer and the gunpowder layer extend out of the outer ring. In this way, when the gunpowder is ignited, it can be directly ignited from the end of the spacer layer extending out of the outer ring, making the gunpowder easier to ignite.
[0033] 6. The bamboo dragonfly fireworks provided by the present utility model, the gunpowder layer is connected to the blade or the outer ring through a support member, and the support member is used to realize the interval setting between the gunpowder layer and the blade or the connecting ring, preventing the blade or the connecting ring from deforming, melting or even burning due to a large amount of heat, thereby increasing the risk.
[0034] 7. For the dragonfly firework provided by the present utility model, a support member is provided on the surface of the paddle blade. The support member separates the gunpowder layer from the paddle blade without any contact in between, thereby further reducing the heat conduction efficiency between the gunpowder and the paddle blade, and further reducing the risk of melting and burning of the paddle blade.
[0035] 8. For the dragonfly firework provided by the present utility model, one end of the gunpowder layer is connected to the outer ring through the support member, and the other end of the gunpowder layer is connected to the inner disk through the support member, and the fixation of the gunpowder layer is realized by means of the support member.
[0036] 10. For the dragonfly firework provided by the present utility model, a whistle is provided on the outer ring to generate a specific sound when the paddle blade rotates, enhancing the audio-visual effect and playing a warning role.
[0037] 11. For the dragonfly firework provided by the present utility model, it further includes a hand-rubbing rod. The hand-rubbing rod is fixedly connected to the inner disk, and the rotation of the paddle blade is realized by a person rubbing the hand-rubbing rod with the hand.
[0038] 12. For the dragonfly firework assembly provided by the present utility model, since it adopts the dragonfly firework described in any one of the above, it has the advantages described in any one of the above. It further includes a screw rod and a hand-pushing cylinder. The hand-pushing cylinder is sleeved on the screw rod. The dragonfly firework is sleeved on the screw rod and is located above the hand-pushing cylinder; a meshing hole adapted to cooperate with the screw rod is opened on the inner disk of the dragonfly firework; the dragonfly firework is adapted to slide upward out of the screw rod under the push of the hand-pushing cylinder and rotate through the cooperation of the meshing hole and the screw rod. The rotation of the screw rod drives the rotation of the paddle blade, driving the dragonfly firework to take off into the air. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0040] Figure 1 Schematic diagram of the dragonfly firework without a hand-rubbing rod provided in the first embodiment of the present utility model;
[0041] Figure 2 Schematic diagram of the dragonfly firework without a hand-rubbing rod provided in the second embodiment of the present utility model;
[0042] Figure 3 Schematic diagram of the dragonfly firework without a hand-rubbing rod provided in the third embodiment of the present utility model;
[0043] Figure 4Schematic diagram of a dragonfly firework without a hand-rubbing rod provided in the first embodiment of the present utility model;
[0044] Figure 5 Schematic diagram of a dragonfly firework provided in the first embodiment of the present utility model;
[0045] Figure 6 Schematic diagram of a dragonfly firework without a hand-rubbing rod provided in the fourth embodiment of the present utility model;
[0046] Figure 7 Schematic diagram of a dragonfly firework without a hand-rubbing rod provided in the fifth embodiment of the present utility model;
[0047] Figure 8 Schematic diagram of a dragonfly firework without a hand-rubbing rod provided in the sixth embodiment of the present utility model;
[0048] Figure 9 Schematic diagram of a dragonfly firework launched by a screw provided in the present utility model;
[0049] Figure 10 For Figure 9 schematic diagram of a dragonfly firework.
[0050] Explanation of reference numerals: 1, blade; 2, inner disk; 3, outer ring; 4, spacer layer; 5, gunpowder layer; 6, whistle; 7, support member; 701, wing part; 702, core part; 8, hand-rubbing rod; 9, hand-pushing cylinder; 10, screw; 11, meshing hole. Detailed implementation manners
[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0052] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0053] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0054] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0055] Embodiment 1
[0056] As Figures 1 - 10 shown, a specific embodiment of the bamboo dragonfly firework includes: two blades 1, and a gunpowder layer 5 arranged at an interval from the blades 1. The roots of the two blades 1 are connected by an inner disc 2, the two blades 1 are arranged at 180°, and the number of gunpowder layers 5 is 1. As an alternative embodiment, the number of blades 1 is less than 7.
[0057] As Figure 1 , Figure 4 and Figure 5 shown, it further includes an outer ring 3, and the outer ring 3 is fixedly connected to the wing tips of the blades 1 respectively. It should be noted that the blades 1, the outer ring 3 and the inner disc 2 are integrally formed, and the materials of the blades 1, the outer ring 3 and the inner disc 2 are plastics. The presence of the outer ring 3 makes the structure of the entire bamboo dragonfly firework more stable, but at the same time it will increase the consumption of injection molding raw materials.
[0058] As Figure 1 , Figure 4 and Figure 5 shown, in order to fix the gunpowder layer 5, a spacer layer 4 is further provided. The spacer layer 4 is arranged on the upper surface of the blade 1, and a linear gunpowder layer 5 is coated and adhered above the spacer layer 4. The gunpowder layer 5 preferably uses electro-optical flower gunpowder. This type of gunpowder belongs to one of the fireworks products. This product uses metal powder with a relatively low ignition point and is processed in a certain proportion. When burning, the temperature of the ejected flame is relatively low, so there is no need to worry about burning clothes, hair, etc. In addition, the electro-optical flower gunpowder is safer than other gunpowders and is safer in production, transportation and storage.
[0059] Specifically, the spacer layer 4 is a steel sheet, and the spacer layer 4 is formed by stamping, and the thickness of the spacer layer 4 is 0.1 - 3 mm. To fix the spacer layer 4, as Figure 1 shown, grooves are provided on the blades 1 and the outer ring 3, and the spacer layer 4 is fixedly arranged in the grooves. To facilitate the ignition of the gunpowder layer 5, as Figure 1 , Figure 4 andFigure 5 As shown, it may also include a fuse to facilitate igniting the gunpowder layer 5 by igniting the fuse, and the time from the fuse to igniting the gunpowder layer 5 is controlled within 0.5 - 8 s. To facilitate igniting the gunpowder layer, in addition to the fuse, the method of extending the spacer layer 4 and the gunpowder layer 5 beyond the outer ring can also be adopted, and the small extended section can be used as an ignited gunpowder head.
[0060] To drive the blade 1 to rotate, as Figure 5 shown, it further includes a hand-rubbing rod 8, and the hand-rubbing rod 8 is fixedly connected to the inner disk 2.
[0061] In the specific implementation process, first ignite the end of the fuse or the gunpowder layer 5, and then rub the hand-rubbing rod 8 to make the blade 1 rotate to drive the device to lift off, cause the gunpowder layer 5 to burn, the gunpowder layer 5 generates a specific visual effect, the blade 1 provides lift and supports the gunpowder layer 5, and increases the hovering time of the gunpowder layer 5.
[0062] Embodiment 2
[0063] As Figure 2 shown, the cross-section of the spacer layer 4 is in the shape of a "U"-shaped groove, and the spacer layer 4 accommodates the gunpowder layer 5 within the opening, and the gunpowder layer 5 is fixed within the spacer layer 4 by pressing. Other structures of this embodiment are the same as those of Embodiment 1.
[0064] Embodiment 3
[0065] As Figure 3 shown, the cross-section of the spacer layer 4 is in the shape of a "Ji"-shaped convex rib, and the gunpowder layer 5 is coated on the spacer layer 4. Other structures of this embodiment are the same as those of Embodiment 1.
[0066] Embodiment 4
[0067] As Figure 6 shown, to play a warning role, a whistle 6 is further provided on the outer ring 3. The whistle 6 is provided with an air inlet, a resonance cavity, and a sound outlet hole. When the outer ring 3 rotates, an air flow is generated at the air inlet to cause the resonance cavity to resonate, so that the device can not only have an auditory effect but also play a warning role. Other structures of this embodiment are the same as those of Embodiment 1.
[0068] Embodiment 5
[0069] To fix the gunpowder layer 5, as Figure 7 shown, the gunpowder layer 5 is fixedly arranged below the blade 1 through two support members 7, and the gunpowder layer 5 is coated on a strip-shaped inner core and then connected to the support members, so as to realize the spaced arrangement of the gunpowder layer 5 and the blade 1. It should be noted that the spacer layer 4 is not provided in this embodiment. Specifically, the support member 7 is in the shape of an "L". Other structures of this embodiment are the same as those of Embodiment 1.
[0070] As an alternative embodiment, the support member 7 and the strip-shaped inner core can also be integrally formed, that is, the support member has a wing portion 701 and a core portion 702; the gunpowder layer 5 is coated on the outer surface of the core portion; one end of the wing portion 701 is connected to the core portion 702, and the other end is bent upward and fixedly installed with the blade 1; the wing portion 701 is adapted to support the core portion 702 from the surface of the blade 1, and the core portion 701 and the wing portion 702 are integrally formed.
[0071] Embodiment 6
[0072] To fix the gunpowder layer 5, as Figure 8 shown, the support member 7 can also be in the shape of a wire. One end of the support member 7 is connected to the inner disc 2, and the other end is connected to the outer ring 3. The gunpowder layer 5 is coated on the middle section of the support member 7. In this embodiment, the spacer layer 4 is not provided.
[0073] As an alternative embodiment, the inner end of the support member 7 can be fixedly connected to the inner disc, and the other end can be suspended.
[0074] The bamboo dragonfly fireworks provided by this application have the following advantages: (1) Compared with rotating and ascending fireworks such as jellyfish, users can control the trajectory, hovering time, etc. of the fireworks, improving the safety of using rotating and ascending fireworks; (2) Because it uses external force to drive the ascent, less gunpowder can be used to achieve better visual effects; (3) Mainly using external force to make the fireworks ascend, so some embodiments use linear or morning light type gunpowder. This type of gunpowder improves safety during production, transportation, storage, and use compared to the gunpowder used in current rotating and ascending fireworks; (4) To improve safety, a fuse is set to improve safety and product effects. By setting the ignition time of the fuse, it is ensured that the blade 1 has sufficient ascending time between the time of igniting the fuse and the time of igniting the gunpowder layer 5; (5) After adding a whistle 6 to the outer ring 3, it can increase the auditory experience and also serve as a warning.
[0075] Embodiment 7
[0076] A bamboo dragonfly fireworks assembly, as Figure 9 、 Figure 10 shown, includes the above-mentioned bamboo dragonfly fireworks, and also includes a screw 10 and a hand-pushing cylinder 9. The hand-pushing cylinder 9 is sleeved on the screw 10, and the bamboo dragonfly fireworks are sleeved on the screw 10 and located above the hand-pushing cylinder 9. The inner disc 2 is provided with a meshing hole 11 that cooperates with the screw 10, and the screw 10 is arranged through the meshing hole 11. As Figure 9 shown, three outer rings 3 are arranged in parallel (the number of outer rings 3 can also be 1, 2, 4, etc.). The three leads are gathered into one. After ignition, the rotation of the hand-pushing cylinder 9 drives the screw 10 to rotate, and the bamboo dragonfly fireworks slide upward along the screw 10 under the rotation of the screw 10, causing the leads on the outer ring 3 to burn while the blade 1 drives the outer ring 3 to ascend.
[0077] Example 8
[0078] See Figure 5 , in order to provide the lifting force for the bamboo dragonfly firework, a hand-rubbing rod 8 can also be provided on the inner disc 2. When in use, directly rubbing the hand-rubbing rod 8 can make the paddle blades 1 rotate, and then lift into the air.
[0079] Obviously, the above embodiments are only examples given for clear illustration, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.
Claims
1. A bamboo dragonfly firework, characterized in that, Comprising: At least two blades (1), the roots of different said blades (1) being connected by an inner disc (2); Gunpowder (5), arranged at an interval from the said blade (1), and the gunpowder layer (5) does not generate a force to drive the blade (1) to rotate when burning.
2. The bamboo dragonfly firework according to claim 1, characterized in that, Further comprising an outer ring (3), the outer ring (3) being fixedly connected to the tip of the blade (1).
3. The bamboo dragonfly firework according to claim 2, wherein, An interval layer (4) is provided on the surface of the said blade (1), and the interval layer (4) is arranged between the gunpowder layer (5) and the blade (1).
4. The bamboo dragonfly firework according to claim 3, characterized in that, The interval layer (4) is in a groove shape, and the gunpowder layer (5) is accommodated in the groove-shaped interval layer (4).
5. The dragonfly firework according to claim 3, characterized in that, The interval layer (4) has a rib protruding upwards, and the gunpowder layer (5) is coated on the surface of the rib of the interval layer (4).
6. The bamboo dragonfly firework according to any one of claims 3 to 5, characterized in that One end of the interval layer (4) extends out of the outer ring (3), and the gunpowder layer (5) extends out of the outer ring (3) along with the interval layer (4).
7. The bamboo dragonfly firework according to claim 2, characterized in that, Further comprising a support member (7), the gunpowder layer (5) being arranged at an interval from the blade (1) through the support member (7).
8. The bamboo dragonfly firework according to claim 7, characterized in that, One side of the support member (7) is fixedly connected to the surface of the blade (1), and after the gunpowder layer (5) is coated on a strip-shaped inner core, it is fixedly installed on the other side of the support member (7).
9. The bamboo dragonfly firework according to claim 7, characterized in that, The support member (7) has a wing part (701) and a core part (702); The gunpowder layer (5) is coated on the outer surface of the core part; One end of the wing part is connected to the core part, and the other end is fixedly installed with the blade; The wing part is adapted to support the core part from the surface of the blade, and the core part and the wing part are integrally formed.
10. The bamboo dragonfly firework according to claim 7, characterized in that, The support member (7) extends along the radial direction of the dragonfly firework, one end of the support member (7) is connected to the inner disc (2), the other end is suspended or connected to the outer ring (3), and the gunpowder layer (5) is coated on the support member (7).
11. The dragonfly firework according to claim 2, characterized in that, A whistle (6) is provided on the outer ring (3).
12. The bamboo dragonfly firework according to any one of claims 1 to 5 and 7 to 11, characterized in that, Further comprising a hand-rubbing rod (8), the hand-rubbing rod (8) being fixedly connected to the inner disc (2).
13. A bamboo dragonfly firework component, characterized in that, Comprising the dragonfly firework according to any one of claims 1 to 10, further comprising: A screw rod (10) and a hand-pushing cylinder (9), the hand-pushing cylinder (9) being sleeved on the screw rod (10), and the dragonfly firework being sleeved on the screw rod (10) and located above the hand-pushing cylinder (9); An engaging hole (11) adapted to cooperate with the screw rod (10) is formed on the inner disc (2) of the said dragonfly firework; the said dragonfly firework is adapted to slide upwards out of the screw rod (10) under the push of the hand-pushing cylinder (9) and rotate through the cooperation of the engaging hole (11) and the screw rod (10).