Combination bead spitting firework with movable inserting handle

Abstract

The utility model discloses a combined bead spitting firework with a movable inserting handle, and relates to the field of fireworks and crackers. Comprising a main body, a sleeve, an inserting handle, an embedding groove, a main clamping groove, an auxiliary clamping groove, a shaft hole, an auxiliary buckle, a rotating shaft and a main buckle. The utility model relates to a combined bead spitting firework with a movable inserting handle, which solves the problems that the traditional firework inserting handle occupies a large transportation space and is easy to damage. An insertion handle of a traditional firework product is of a fixed structure and is difficult to store, so that transportation is inconvenient, and occupied space is large. Meanwhile, the fixed insertion handle is easily affected by external force to be damaged in the transportation and use process, and the product stability is affected. The foldable or movable inserting handle structure is designed, the inserting handle is connected with the sleeve through the rotating shaft, the inserting handle is folded into the sleeve when stored, the inserting handle is unfolded and fixed through the buckle and the clamping groove when used, and the stability and the transportation efficiency of firework products are improved.

Description

Technical Field

[0001] This utility model relates to the field of fireworks and firecrackers, specifically a combination of movable handles that emits sparkling fireworks. Background Technology

[0002] In recent years, combined sparkler fireworks, as a type of fireworks product with strong decorative effects and high visual appeal, have been widely used in festivals, celebrations, and other occasions. This type of product consists of multiple sparkler units integrated into one unit, requiring a fixed structure to support it on the ground to ensure stability during launch. Existing equipment has the following drawbacks and requires further improvement.

[0003] However, existing integrated handle structures remain extended and fixed when not in use, making them impossible to retract. This significantly increases the overall length of the product, hindering efficient arrangement during packaging and storage, occupying considerable space, and consequently increasing transport volume and packaging material costs. Furthermore, fireworks are classified as flammable and explosive hazardous materials, requiring strict storage and transportation management. Their volume and loading efficiency directly impact compliant transportation capabilities and warehousing costs, limiting the commercial promotion and usage efficiency of this type of product.

[0004] Fixed inserts are prone to structural deformation or breakage during transportation, especially in high-density transport environments with multiple stacked units, making them susceptible to pressure damage. This can affect the safety and appearance of the ignition, leading to a decline in user experience. Some products also suffer from unstable insertion and angle deviation due to insecure insert structures, which can easily cause abnormal spray direction or even safety hazards, further highlighting the shortcomings of traditional structures in terms of strength, stability, and transport adaptability. Utility Model Content

[0005] The main purpose of this utility model is to provide a combination of movable handles for spitting fireworks, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a combination of movable insert handles for spitting fireworks, wherein the front end of the main body is connected to a sleeve, the front end of the sleeve is connected to an insert handle, one side of the sleeve is provided with an embedding groove, one side of the main body is provided with a main slot, the front end of the sleeve is provided with a secondary slot, the front end of the sleeve is also provided with a shaft hole, the tail of the insert handle is provided with a secondary buckle, the tail of the insert handle is also provided with a rotating shaft, and one side of the sleeve is provided with a main buckle.

[0007] Preferably, the rotating shaft has a cylindrical structure, and its two ends are respectively inserted into the shaft holes at opposite ends of the sleeve by a plug-in method. The clearance between the diameter of the shaft hole and the outer diameter of the rotating shaft is 0.1-0.3mm.

[0008] Preferably, the insert groove is opened along the length of the sleeve, and its bottom is a recessed structure that matches the shape of the insert handle, used to accommodate the body in the folded state of the insert handle, and the insert handle and the insert groove are in a sliding fit.

[0009] Preferably, the main slot is a rectangular through slot, located on one side of the shell wall inside the main body, with a depth of 2-5mm. The main buckle is a protruding part that cooperates with the main slot, forming a limiting engagement structure by inserting into the main slot.

[0010] Preferably, the secondary slot is a semi-enclosed groove provided on the front end shell of the sleeve, with its opening facing the rotation direction of the insert handle, and the secondary buckle is a beveled elastic protrusion that can automatically engage in the secondary slot to achieve auxiliary positioning when rotated and unfolded.

[0011] Preferably, the rotating shaft and the end of the insert are integrally injection molded. The length of the rotating shaft is slightly larger than the outer diameter of the front end of the sleeve, and it is stopped by the shaft end limiting ring on both sides of the outer wall of the sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention solves the problem of large packaging volume and excessive space occupation during transportation caused by the outward extension of traditional fixed handles by incorporating a foldable or movable handle into the sleeve structure. When not in use, the handle can be folded around the pivot and embedded in the groove of the sleeve. Secure storage is achieved through the engagement of the main buckle and the main slot. This not only makes the overall product shape more compact but also significantly reduces the volume requirement of individual products, thereby increasing loading density, reducing unit transportation costs, and improving commercial circulation efficiency during batch packaging and warehousing transportation.

[0014] Furthermore, the movable handle structure adopted in this invention can reliably lock the handle in the ignition state through multi-point positioning cooperation between the secondary buckle and the secondary slot, and between the main buckle and the main slot, effectively avoiding the displacement or detachment caused by uneven force or insecure insertion of traditional handles. At the same time, the handle and the rotating shaft adopt a high-precision, clearly defined rotary connection structure, improving the handle's resistance to external deformation, reducing the risk of structural damage during transportation, and enhancing the overall reliability and safety of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the sleeve structure of this utility model;

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

[0019] Figure 5 This is a schematic diagram of the sleeve and insert structure of this utility model.

[0020] In the diagram: 1. Main body; 2. Sleeve; 3. Insert handle; 4. Embedded groove; 5. Main slot; 6. Secondary slot; 7. Shaft hole; 8. Secondary buckle; 9. Rotating shaft; 10. Main buckle. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] Please see Figure 1-5 This utility model provides a technical solution:

[0026] A combination of movable insert handles for spitting fireworks, wherein the front end of the main body 1 is connected to the sleeve 2, the front end of the sleeve 2 is connected to the insert handle 3, the sleeve 2 has an embedding groove 4 on one side, the main body 1 has a main locking groove 5 on one side inside, the sleeve 2 has a secondary locking groove 6 at the front end, the sleeve 2 also has a shaft hole 7 at the front end, the insert handle 3 has a secondary buckle 8 at the tail end, the insert handle 3 also has a rotating shaft 9 at the tail end, and the sleeve 2 has a main buckle 10 on one side inside.

[0027] The main body is the installation part of the main explosive charge of the fireworks. Its front end is fixedly connected to a sleeve by a hot riveting or snap-fit ​​structure. The sleeve serves as a load-bearing structure for storing and unfolding the plug handle. One side of the sleeve is provided with an embedding groove extending along the length direction. The groove has an open structure, which is used to fold and store the plug handle when it is not in use.

[0028] The end of the insert has a rotating shaft that matches the shaft hole at the front end of the sleeve. The rotating shaft is an integral injection-molded structure, and its two ends are inserted into the corresponding shaft holes to achieve a rotatable connection. When the insert is not in use, it can rotate 180° around the rotating shaft and embed into the insertion groove. To achieve stable positioning when stored, the insert has a main buckle and a secondary buckle, which are respectively engaged in the main buckle groove on the main body and the secondary buckle groove on the sleeve. This double limiting method ensures that the insert does not loosen or wobble when folded.

[0029] Before using the fireworks, the operator can pull the handle out of the insertion slot and rotate it out around the pivot. After unfolding to the predetermined angle, the secondary latch engages with the secondary slot, and the primary latch simultaneously inserts into the primary slot, forming a stable positioning structure. At this point, with the front end of the handle pointing downwards, the fireworks can be firmly inserted into the ground, ensuring a fixed posture and accurate direction during ignition.

[0030] The principle of this invention lies in the fact that the rotating connection between the shaft and the shaft hole enables the insert to move; combined with the cooperation of the main and auxiliary buckles and the slot, the insert is stably positioned in both the unfolded and retracted states. This structural design simplifies the usage process of ground-inserted fireworks, avoids the redundant transportation volume caused by traditional fixed inserts, and significantly improves transportation safety and structural durability.

[0031] To further enhance the structural strength of the plug handle, it can be made of ABS engineering plastic material with internal reinforcing ribs to prevent deformation due to external forces during insertion or transportation. Meanwhile, the main latch features a rounded corner design to reduce structural stress concentration and improve the locking lifespan.

[0032] The term "front end" in the text refers to the end away from the direction of the fireworks spray, i.e., the insertion end close to the ground; "one side of the sleeve" refers to the side connected to the handle and having an embedding structure; "rotational connection" refers to the mechanism in which the handle can rotate around the pivot; and "snap" refers to the positioning structure on the handle, which engages with the slot to maintain a fixed state.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combination of movable insert handles for ejecting sparklers, comprising a main body (1), a sleeve (2), and an insert handle (3), characterized in that: The front end of the main body (1) is connected to the sleeve (2), the front end of the sleeve (2) is connected to the insert (3), the sleeve (2) has an embedding groove (4) on one side, the main body (1) has a main slot (5) on one side inside, the sleeve (2) has a secondary slot (6) at the front end, the sleeve (2) also has a shaft hole (7) at the front end, the insert (3) has a secondary buckle (8) at the tail end, the insert (3) also has a rotating shaft (9) at the tail end, and the sleeve (2) has a main buckle (10) on one side inside.

2. The combined sparkler with a movable insert according to claim 1, characterized in that: The rotating shaft (9) is a cylindrical structure, and its two ends are inserted into the shaft holes (7) that are opposite to each other at the front end of the sleeve (2) by means of plugging. The clearance between the diameter of the shaft hole (7) and the outer diameter of the rotating shaft (9) is 0.1-0.3mm.

3. The combined sparkler with a movable handle according to claim 1, characterized in that: The embedding groove (4) is opened along the length of the sleeve (2), and its bottom is a recessed structure that matches the shape of the insert (3) to accommodate the body of the insert (3) in the folded state. The insert (3) and the embedding groove (4) are in a sliding fit.

4. The combined sparkler with a movable handle according to claim 1, characterized in that: The main slot (5) is a rectangular through slot, which is set on the shell wall on one side inside the main body (1) and has a depth of 2-5mm. The main buckle (10) is a protruding part that cooperates with the main slot (5) and is inserted into the main slot to form a limiting engagement structure.

5. The combined sparkler with a movable insert according to claim 1, characterized in that: The secondary slot (6) is a semi-enclosed groove set on the front end shell of the sleeve (2), with its opening facing the rotation direction of the insert (3). The secondary buckle (8) is a slanted elastic protrusion that can automatically be inserted into the secondary slot (6) to achieve auxiliary positioning when rotated and unfolded.

6. The combined sparkler with a movable insert according to claim 1, characterized in that: The shaft (9) and the end of the insert (3) are made by integral injection molding. The length of the shaft (9) is slightly larger than the outer diameter of the front end of the sleeve (2), and it is stopped by the shaft end limiting ring on both sides of the outer wall of the sleeve.

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