A bamboo dragonfly convenient to assemble

Abstract

The application relates to the technical field of toys, and particularly discloses a bamboo dragonfly convenient to assemble, which comprises a hand rod and a blade, the blade is detachably connected with the hand rod through a connecting piece, the connecting piece comprises a base and a plug rod, an openable cover plate is arranged on the base, the blade is clamped and fixed between the base and the cover plate, the plug rod is fixed at the center of the base and is in plug-in cooperation with the hand rod, one side of the cover plate is rotationally connected with the edge of the base, the other side is provided with a bolt which is clamped and locked with a plug hole on the base, at least two groups of cover plates are symmetrically arranged on the base to ensure the rotational dynamic balance, a bending part protruding upwards is arranged at the center of the base, and the blade can automatically form a stable lift angle. The bamboo dragonfly does not need additional tools for assembly, the blade can be individually replaced when damaged, the transportation space is greatly reduced after being disassembled, the flight stability is good, and the air time is long.

Description

Technical Field

[0001] This invention relates to the field of toy technology, and in particular to a bamboo dragonfly that is easy to assemble. Background Technology

[0002] Bamboo dragonflies are a classic folk educational toy that has been passed down in my country for thousands of years. They rely on the rotational lift generated by rubbing them in the hand to achieve flight. They are both fun and scientifically educational, and are widely used in children's craft classes, parent-child interactive activities, and science popularization and research scenarios.

[0003] Most traditional bamboo dragonflies on the market currently use a one-piece injection-molded structure, with the handle and blades directly fixed as an inseparable unit. This presents several significant drawbacks in actual use: First, the blades are easily damaged components, prone to breakage after repeated drops and impacts. Once a blade is damaged, the entire bamboo dragonfly becomes unusable and must be discarded, resulting in material waste. Second, the one-piece structure occupies a large space during packaging and transportation, and the protruding shape of the blades is easily deformed during transport, significantly increasing logistics costs and product defect rates. Third, the blade angle of traditional bamboo dragonflies is fixed at the factory, preventing users from adjusting the blade angle to their needs, making it difficult to experience flight effects under different lift levels, and failing to meet the educational needs of DIY assembly. In recent years, some detachable bamboo dragonfly products have emerged, but these products mostly use simple plug-in structures with poor stability in the connection between the blades and handle. During rotation and flight, blades are prone to detaching and flying out, posing a safety hazard. Furthermore, the insufficient positioning accuracy of the blades makes it difficult to maintain dynamic balance after assembly, leading to problems such as shaking, deviation, and short flight time, resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a bamboo dragonfly that is easy to assemble, effectively solving the problems of traditional bamboo dragonflies with integrated structures that cannot have their blades replaced individually, large space requirements during transportation, poor blade positioning accuracy, and insufficient flight stability.

[0005] The technical solution adopted in this invention is: a bamboo dragonfly that is easy to assemble, including a handle and blades.

[0006] The blade is detachably connected to the handle via a connector;

[0007] The connector includes a base and a plug rod. A cover plate is detachably connected to the base, and the blade is clamped and fixed between the base and the cover plate.

[0008] The insertion rod is fixedly installed at the center of the base, and the connector is inserted into the handle through the insertion rod.

[0009] Furthermore, one side edge of the cover plate is rotatably connected to one side edge of the base. The cover plate is provided with a pin, and the base is provided with a hole corresponding to the position of the pin. The cover plate is detachably fixed to the base by the snap-fit ​​between the pin and the hole.

[0010] Furthermore, the pin is located on the other side of the cover plate away from the rotating connection edge, and the insertion hole is correspondingly located on the other side of the base away from the rotating connection edge.

[0011] Furthermore, the base is provided with at least two sets of cover plates, which are symmetrically connected to the left and right edges of the base to ensure the dynamic balance of the connector when it rotates.

[0012] Furthermore, the base has an upwardly protruding bend at its center, and the center of the blade is positioned to fit the bend, thereby creating a stable lift angle between adjacent blades.

[0013] Furthermore, a through hole is provided at the center of the blade, and the insertion rod is inserted into the blade through the through hole.

[0014] Furthermore, the cover plate and the base are connected by an integrally formed flexible connection part. When the cover plate rotates relative to the base, the flexible connection part undergoes elastic deformation.

[0015] Furthermore, the connector is an integral structure formed by injection molding.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This invention uses connectors to achieve a fully detachable connection between the blade and the handle. The blade can be replaced individually when it is damaged, without having to be discarded as a whole, which greatly reduces the cost of use. At the same time, the flat blade and the slender handle can be stacked and stored after disassembly, reducing packaging and transportation space and effectively reducing logistics losses.

[0018] 2. The blades are fixed by a clamping structure between the base and the cover plate. Compared with traditional glue bonding and direct insertion methods, the blades are effectively fixed more firmly, and they will not come loose or fly out during flight, greatly improving safety.

[0019] 3. The two sets of symmetrically arranged cover plates, together with the central bend of the base, can precisely control the installation angle of the blades, ensuring that the assembled connectors have good dynamic balance and will not vibrate or deviate during flight.

[0020] 4. The entire connector adopts a one-piece injection molded plastic structure, which is easy to manufacture and process. During assembly, you only need to put the blade into the base, fasten the cover plate and insert the handle to complete the assembly. No additional tools are required. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a bamboo dragonfly that is easy to assemble according to the present invention;

[0023] Figure 2 This is a schematic diagram showing the open state of the connector in a bamboo dragonfly that is easy to assemble according to the present invention;

[0024] Figure 3 This is a schematic diagram showing the closed state of the connector in a bamboo dragonfly that is easy to assemble according to the present invention;

[0025] Figure 4 This is a schematic diagram of the connecting parts and blades in a bamboo dragonfly that is easy to assemble according to the present invention.

[0026] The components in the attached diagram are labeled as follows: 1-hand lever, 2-connector, 21-insertion rod, 22-bend, 23-base, 24-cover plate, 25-pin, 26-insertion hole, 3-blade.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0031] See the attached instruction manual. Figure 1-4 This invention provides a bamboo dragonfly that is easy to assemble, including a handle 1 and blades 3. The blades 3 are detachably connected to the handle 1 via a connector 2. The connector 2 includes a base 23 and an insert 21. A cover plate 24 is detachably connected to the base 23, and the blades 3 are clamped and fixed between the base 24 and the cover plate 23. The insert 21 is fixedly located at the center of the base 23. The connector 2 is inserted into the handle 1 via the insert 21. The connector 2 enables a completely detachable connection between the blades 3 and the handle 1. The blades 3 can be replaced individually when damaged, without having to be discarded as a whole, which greatly reduces the cost of use. At the same time, the flat blades and slender handles can be stacked and stored after disassembly, reducing packaging and transportation space and effectively reducing logistics losses.

[0032] In a preferred embodiment of this invention, one edge of the cover plate 24 is rotatably connected to one edge of the base 23. The cover plate 24 is provided with a pin 25, and the base 23 is provided with a hole 26 corresponding to the position of the pin 25. The cover plate 24 is detachably fixed to the base 23 by the snap-fit ​​between the pin 25 and the hole 26. The blade 3 is fixed by the clamping structure of the base 23 and the cover plate 24. Compared with the traditional glue bonding and direct insertion method, the fixing firmness of the blade 3 is effectively improved, and there will be no loosening or flying out during flight, which greatly improves the safety of use.

[0033] Specifically, the pin 25 is located on the other side edge of the cover plate 24 away from the rotating connection edge, and the insertion hole 26 is correspondingly located on the other side edge of the base 23 away from the rotating connection edge.

[0034] Specifically, the base 23 is provided with at least two sets of cover plates 24, which are symmetrically connected to the left and right edges of the base 23 to ensure the dynamic balance of the connector 2 when it rotates.

[0035] In a preferred embodiment of this invention, the base 23 has an upwardly protruding bent portion 22 at its center, and the center of the blade 3 is positioned to fit the bent portion 22, so that a stable lift angle is formed between adjacent blades 3. The two sets of symmetrically arranged cover plates 24, together with the central bent portion 22 of the base 23, can precisely control the installation angle of the blades, ensuring that the assembled connector 2 has good dynamic balance and will not shake or deviate during flight.

[0036] In a preferred embodiment of this invention, the blade 3 has a through hole at its center, and the insertion rod 21 is inserted into the blade 3 through the through hole. During assembly, it is only necessary to place the blade 3 into the base 23, fasten the cover plate 24, and then insert the handle 1 to complete the assembly without the need for additional tools.

[0037] In a preferred embodiment of this invention, the cover plate 24 and the base 23 are connected by an integrally formed flexible connection. When the cover plate 24 rotates relative to the base 23, the flexible connection undergoes elastic deformation. The above structure can be integrally formed by injection molding, which effectively reduces production costs.

[0038] As a preferred embodiment of this invention, the connector 2 is an integral structure formed by injection molding. The entire connector 2 adopts an integrally injection molded plastic structure, which is easy to manufacture and process.

[0039] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0040] A bamboo dragonfly with easy assembly includes a handle and blades, with the blades detachably connected to the handle via a connector. The connector includes a base and a plug. The base has an openable cover plate, and the blades are clamped and fixed between the base and the cover plate. The plug is fixed to the center of the base and engages with the handle. One side of the cover plate is rotatably connected to the edge of the base, and the other side has a pin that engages and locks with a hole on the base. At least two sets of cover plates are symmetrically arranged on the base to ensure rotational dynamic balance. The center of the base has an upwardly protruding bend that allows the blades to automatically form a stable lift angle. This invention requires no additional tools for assembly, damaged blades can be replaced individually, the disassembly significantly reduces transportation space, and it offers good flight stability and long loiter time.

[0041] The product names described above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A bamboo dragonfly that is easy to assemble, comprising a handle and blades, characterized in that, The blade is detachably connected to the handle via a connector; The connector includes a base and a plug rod. A cover plate is detachably connected to the base, and the blade is clamped and fixed between the base and the cover plate. The insertion rod is fixedly installed at the center of the base, and the connector is inserted into the handle through the insertion rod.

2. The bamboo dragonfly with easy assembly according to claim 1, characterized in that, One edge of the cover plate is rotatably connected to one edge of the base. The cover plate is provided with a pin, and the base is provided with a hole corresponding to the position of the pin. The cover plate is detachably fixed to the base by the snap-fit ​​between the pin and the hole.

3. The bamboo dragonfly with easy assembly according to claim 2, characterized in that, The pin is located on the other side of the cover plate away from the rotating connection edge, and the insertion hole is located on the other side of the base away from the rotating connection edge.

4. The bamboo dragonfly with easy assembly according to claim 3, characterized in that, The base is provided with at least two sets of cover plates, which are symmetrically connected to the left and right edges of the base to ensure the dynamic balance of the connector when it rotates.

5. A bamboo dragonfly that is easy to assemble according to claim 1, characterized in that, The base has an upwardly protruding bend at its center, and the center of the blade is positioned to fit the bend, so that a stable lift angle is formed between adjacent blades.

6. A bamboo dragonfly that is easy to assemble according to claim 1, characterized in that, The blade has a through hole at its center, and the insert rod is inserted into the blade through the through hole.

7. A bamboo dragonfly that is easy to assemble according to claim 1, characterized in that, The cover plate and the base are connected by an integrally formed flexible connection part. When the cover plate rotates relative to the base, the flexible connection part undergoes elastic deformation.

8. A bamboo dragonfly that is easy to assemble according to claim 1, characterized in that, The connector is an integral structure formed by injection molding.

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