Telescopic handle body of Gateline fireworks

Abstract

The telescopic handle body is composed of a handle body, a core tube and a fixing sleeve seat, the handle body is sleeved with the core tube in a sliding mode, a conical neck is arranged on the portion, close to the top end, of the handle body, and a plurality of cracks evenly distributed along the circumference are formed in the conical neck. The fixed sleeve seat comprises an inner sleeve and an outer sleeve, a conical neck opening part corresponding to the conical neck part is arranged on the inner wall of the inner sleeve, and a plurality of slope surface convex blocks which are uniformly distributed along the circumference are arranged on the outer wall of the inner sleeve; a slope step ring is arranged on the inner wall, close to the bottom end, of the core tube; a slope lantern ring is arranged on the inner wall of the bottom end opening of the core pipe and corresponds to the slope protruding block, and the step portion of the slope step ring abuts against the top end of the inner sleeve. Only a circle of slope lantern ring and a circle of slope step ring need to be arranged on the inner wall of the core tube, only a plurality of slope protruding blocks need to be arranged on the outer wall of the inner sleeve of the fixing sleeve base, and the handle body and the inner sleeve are matched in a corresponding conical mode, so that reliable and convenient assembling and matching can be achieved, the telescopic requirement of the handle body is met, and the requirement for circumferential alignment is avoided; the structure is effectively simplified, and connection and assembly are facilitated.

Description

Technical Field

[0001] This utility model relates to a retractable handle structure for Gatling gun fireworks. Background Technology

[0002] In the prior art, Chinese patent document CN219083910U discloses "A handle structure for Gatling gun fireworks". It consists of a handle and a core tube, with the handle slidingly fitted inside the core tube, and a fixing sleeve fixed to the bottom end of the core tube. Using this handle structure, the length can be extended and retracted without affecting the function of the handle or insert, thereby effectively reducing the packaging length of the product.

[0003] The drawback of the existing technology is that the bottom end of the core tube 304 is fixedly provided with a fixing sleeve 303, and the handle 301 needs to be provided with a wedge-shaped locking block 307 to be inserted into the locking groove 306 of the core tube 304 to achieve a snap-fit ​​connection between the two when the handle 301 is extended; moreover, since there is a circumferential alignment requirement between the core tube and the handle, the handle 301 needs to be provided with a protrusion 308 to be inserted into the sliding guide groove 305 of the core tube 304 to avoid misalignment of the snap-fit ​​and facilitate assembly. This results in a complex structure and increases production costs. Utility Model Content

[0004] To address the aforementioned drawbacks, the technical problem this invention aims to solve is to provide a retractable handle structure for Gatling gun fireworks, effectively simplifying the structure and facilitating connection and assembly. The technical solution adopted by this invention is a retractable handle for Gatling gun fireworks, comprising a handle body, a core tube, and a fixing sleeve. The handle body is slidably fitted inside the core tube. The handle body has a conical neck near its top. The conical neck is characterized by having several evenly distributed circumferential cracks. The fixing sleeve includes an inner sleeve and an outer sleeve. The inner wall of the inner sleeve has a conical neck opening corresponding to the conical neck, and the outer wall of the inner sleeve has several evenly distributed circumferential sloping protrusions. The inner wall of the core tube near its bottom end has a sloping step ring. The inner wall of the bottom end of the core tube has a sloping collar, which is positioned corresponding to the sloping protrusions. The stepped portion of the sloping step ring abuts against the top end of the inner sleeve.

[0005] Using the above technical solution, the handle is inserted into the core tube; the bottom end of the core tube is fitted onto the inner sleeve of the fixed sleeve. After the sloping collar descends past the sloping protrusion, the core tube is stuck and cannot move upwards; simultaneously, the stepped part of the sloping stepped ring on the inner wall of the core tube abuts against the top of the inner sleeve, preventing the core tube from descending, thus achieving axial positioning of the core tube and the fixed sleeve. This completes the assembly of the telescopic handle structure, at which point the telescopic handle is in a standby state, effectively reducing the product's packaging length.

[0006] When the device needs to enter the working state, drag the handle downwards. Its conical neck elastically contracts along the crack, reducing its radial dimension, and passes through the slope of the stepped ring. After passing through, the conical neck deforms and recovers, and the stepped part of the stepped ring abuts against the top of the handle, preventing it from moving upwards. At the same time, the conical neck of the handle is locked inside the conical neck opening, preventing the handle from moving downwards, thus achieving axial positioning of the handle and the fixed sleeve. At this time, the handle extends from the bottom port of the inner sleeve of the fixed sleeve and is in the working state.

[0007] The beneficial effects of this utility model are that the core tube only needs to be provided with a beveled collar and a beveled stepped collar on the inner wall, the fixed sleeve only needs to be provided with several beveled protrusions on the outer wall of the inner sleeve, and the handle and the inner sleeve have corresponding conical fits, so that reliable and convenient assembly and fit can be achieved and the needs of handle extension and retraction can be met. There is no requirement for circumferential alignment, which effectively simplifies the structure and facilitates connection and assembly.

[0008] In one embodiment, a protruding rib ring that encircles the outer wall of the inner sleeve is provided between the sloped collar and the sloped stepped ring. This further reduces the mating gap between the outer wall of the core tube and the inner sleeve, resulting in a more secure connection.

[0009] In one embodiment, the top end of the core tube is provided with a core tube cap. This prevents glue from dripping into the core tube during fireworks production, which could cause the core tube to stick to the handle placed inside, making it impossible to pull the handle into the working state. Core tube caps of different lengths can also serve as length adjustment tools, allowing for the use of different length core tube caps based on the length difference between the firework and the outer tube.

[0010] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time.

[0011] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0012] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0013] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0016] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a Gatling gun firework.

[0018] Figure 2 This is a first-person perspective three-dimensional structural diagram of the telescopic handle.

[0019] Figure 3 This is a second-view three-dimensional structural diagram of the telescopic handle.

[0020] Figure 4 This is a third-person perspective schematic diagram of the telescopic handle.

[0021] Figure 5 This is a cross-sectional structural diagram of the telescopic handle (including a partial enlargement).

[0022] Figure 6 This is a schematic diagram of the upper structure of the fixed sleeve.

[0023] Figure 7 This is a schematic diagram of the lower structure of the fixed sleeve.

[0024] Figure 8 This is a schematic diagram of the handle structure.

[0025] Figure 9 This is a schematic diagram of the working state and mating structure of the handle and the fixed sleeve.

[0026] Figure 10 This is a schematic diagram of the core tube structure.

[0027] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure of section AA is shown. Detailed Implementation

[0028] Referring to the accompanying drawings, a specific structure of this utility model is illustrated. The telescopic handle of the Gatling gun firework consists of three parts: handle 1, core tube 2, and fixing sleeve 3. These three parts can be separately injection molded and then assembled. The description in the example is based on handle 1 being positioned below.

[0029] The handle 1 is slidably fitted inside the core tube 2. The handle 1 has a tapered neck 101 near the top. In this example, the handle 1 is generally tapered. In other embodiments, the other parts of the handle, except for the tapered neck 101, can be non-tapered or other shapes. The tapered neck 101 has several circumferentially distributed cracks 102.

[0030] The fixed sleeve 3 includes an inner sleeve 301 and an outer sleeve 302 fixed at the bottom end, and the outer sleeve 302 is used to connect with the outer cylinder 4. The inner wall of the inner sleeve 301 is provided with a conical neck 304 corresponding to the conical neck 101, and the outer wall of the inner sleeve 301 is provided with a plurality of sloping protrusions 303 evenly distributed along the circumference.

[0031] The inner wall of the core tube 2 near its bottom end is provided with a sloping step ring 201; the inner wall of the bottom end of the core tube 2 is provided with a sloping collar 202, which is provided corresponding to the sloping protrusion 303. The step portion 2011 of the sloping step ring 201 abuts against the top end of the inner sleeve 301. In the example, a convex rib ring 203 that surrounds the outer wall of the inner sleeve 301 is provided between the sloping collar 202 and the sloping step ring 201. The convex rib ring 203 further reduces the fitting clearance between the outer wall of the core tube and the inner sleeve.

[0032] During assembly, press down firmly on the bottom end of the core tube 2 to fit it onto the inner sleeve 301 of the fixed sleeve 3. This causes the sloping collar 202 to descend past the sloping protrusion 303, preventing the core tube 2 from ascending. Simultaneously, the stepped portion 2011 of the sloping stepped ring 201 on the inner wall of the core tube 2 abuts against the top of the inner sleeve 301, further preventing the core tube 2 from descending. This achieves axial positioning of the core tube 2 and the fixed sleeve 3. The handle 1 is then inserted into the core tube 2. Assembly is now complete, and the telescopic handle is in a standby state, effectively reducing the product's packaging length.

[0033] When the device needs to enter the working state, drag the handle 1 downwards. Its conical neck 101 elastically contracts along the crack 102, reducing its radial dimension, and passes through the slope portion 2012 of the sloped step ring 201. After passing through, the conical neck 101 deforms and recovers, and the step portion 2011 of the sloped step ring 201 abuts against the top of the handle 1, preventing it from moving upwards. At the same time, the conical neck 101 of the handle 1 is locked inside the conical neck portion 304 of the inner sleeve 301, preventing the handle 1 from moving downwards, thereby achieving axial positioning of the handle 1 and the fixed sleeve 3. At this time, the handle 1 extends from the bottom port of the inner sleeve 301 of the fixed sleeve 3 and is in the working state.

[0034] The core tube 2 only needs to have a beveled collar 202 and a beveled step collar 201 on its inner wall, and the fixing sleeve 3 only needs to have several beveled protrusions 303 on the outer wall of the inner sleeve. The handle 1 and the inner sleeve 301 are in a corresponding conical fit, which can achieve reliable and convenient assembly and meet the needs of handle extension and retraction. There is no requirement for circumferential alignment, which effectively simplifies the structure and facilitates connection and assembly.

[0035] In fireworks production, the aforementioned telescopic handle needs to be combined with the sparkler 1, which requires glue. To prevent glue from dripping into the spare core tube 2 and causing it to stick to the handle 1 inside, thus preventing the handle 1 from being pulled into the working state, a core tube cap 5 is provided at the top end of the core tube 2 in this example. In production practice, core tube caps 5 of different lengths can also be used to adjust the length of the core tube 2, making it easy to use different lengths of core tube caps 5 according to the length difference between the sparkler 1 and the outer tube 4.

[0036] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. A telescopic handle for a Gatling gun firework, comprising a handle body, a core tube, and a fixing sleeve, wherein the handle body is slidably fitted inside the core tube, and the handle body has a tapered neck near its top end, characterized in that, The conical neck is provided with several cracks evenly distributed along the circumference; the fixing sleeve includes an inner sleeve and an outer sleeve, the inner wall of the inner sleeve is provided with a conical neck opening corresponding to the conical neck, and the outer wall of the inner sleeve is provided with several sloping protrusions evenly distributed along the circumference; the inner wall of the core tube near the bottom end is provided with a sloping step ring; the inner wall of the bottom end of the core tube is provided with a sloping collar, the sloping collar is provided corresponding to the sloping protrusions, and the step portion of the sloping step ring abuts against the top end of the inner sleeve.

2. The telescopic handle of a Gatling gun firework as described in claim 1, characterized in that, A convex rib ring is provided between the slope collar and the slope step ring, which encircles the outer wall of the inner sleeve.

3. The telescopic handle of a Gatling gun firework as described in claim 1, characterized in that, The top end of the core tube is provided with a core tube cap.

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