Firework propellant box sealing device

Abstract

The invention discloses a firework propellant box sealing device, and relates to the technical field of firework propellant boxes, the firework propellant box sealing device comprises a loading cylinder in which a plurality of launching cylinders are loaded, and further comprises a supporting mechanism for supporting and protecting the loading cylinder and the plurality of launching cylinders in the loading cylinder, and a protection mechanism for supporting and protecting the loading cylinder and the plurality of launching cylinders in the loading cylinder, the device has the advantages that through the design of the supporting mechanism and the sealing groove, the stability and the sealing performance of the whole structure are achieved, the protection mechanism forms a double-waterproof layer and a moisture absorption barrier, external humid air is effectively isolated, and the service life of the device is prolonged. The receiving mechanism further provides local moisture-proof and positioning support around the launching barrel, materials such as flame-retardant foam and aluminum foil are adopted as a whole, moisture-proof and sealing are guaranteed, meanwhile, the fireproof safety and the breakability during launching are considered, and the moisture-proof reliability and the use safety of the firework launching powder box in the storage and transportation process are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of fireworks powder box technology, and more specifically to a sealing device for fireworks propellant boxes. Background Technology

[0002] The propellant box is a crucial component in fireworks and firecrackers, used to hold the propellant, secure the fuse, and ensure the propellant is isolated from the outside environment. It plays a central role in the launch of large high-altitude fireworks such as aerial shells. The propellant box is an important part of fireworks and firecracker products, especially for large high-altitude fireworks like aerial shells. It is typically designed to hold the propellant and secure the fuse to ensure that the propellant burns stably and safely after ignition, thus launching the firework into the high altitude.

[0003] The existing fireworks launcher boxes lack moisture-proof sealing devices, making them susceptible to moisture and humidity during storage and transportation. This moisture damages the gunpowder or fuse inside the launcher box, making it difficult for the fireworks to be released normally and potentially causing safety hazards in severe cases. Summary of the Invention

[0004] The purpose of this invention is to provide a sealing device for fireworks propellant boxes to solve the problem of the lack of moisture-proof sealing devices inside fireworks propellant boxes in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealing device for a fireworks propellant box, comprising a loading cylinder containing a plurality of propellant tubes, and further comprising: a support mechanism fixedly disposed at the top and bottom of the loading cylinder for supporting and protecting the loading cylinder and the plurality of propellant tubes within it, the support mechanism comprising a base fixedly disposed at the bottom of the loading cylinder and a top cover fixedly disposed at the top of the loading cylinder; a protective mechanism fixedly disposed on the side wall of the loading cylinder for moisture protection of the plurality of propellant tubes inside the loading cylinder, the protective mechanism comprising a moisture-proof frame fixedly disposed within the side wall of the loading cylinder, the outer wall of the moisture-proof frame being fixedly disposed with an outer waterproof layer and the inner wall of the moisture-proof frame being fixedly disposed with an inner waterproof layer; and a receiving mechanism fixedly disposed on the plurality of propellant tubes for limiting and supporting the plurality of propellant tubes, the receiving mechanism comprising a plurality of receiving frames fixedly disposed on the plurality of propellant tubes.

[0006] Furthermore, the support mechanism also includes a top sealing groove formed at the bottom of the top cover, the top of the loading cylinder is fixedly disposed in the top sealing groove, the top sealing groove is filled with sealant for sealing connection between the bottom of the top cover and the top of the loading cylinder; a top protective layer is fixedly disposed inside the top cover.

[0007] Furthermore, the support mechanism also includes a bottom sealing groove formed on the top of the base, which is also filled with sealant for sealing the connection between the top of the base and the bottom of the loading cylinder.

[0008] Furthermore, the protective mechanism also includes a loading cavity opened inside the moisture-proof rack, the loading cavity being filled with a desiccant; a plurality of connecting holes II are opened on one side of the side wall of the moisture-proof rack, and the plurality of connecting holes II are located on one side of the outer waterproof layer.

[0009] Furthermore, the protective mechanism also includes several supporting cardboard pieces fixedly installed inside the moisture-proof rack, and the several supporting cardboard pieces are not connected to the interior of the moisture-proof rack.

[0010] Furthermore, the receiving mechanism also includes a loading slot inside the receiving frame, through which the receiving frame loads a desiccant; the side wall of the receiving frame is provided with a plurality of connecting holes.

[0011] Furthermore, the receiving mechanism also includes several sleeves fixedly disposed inside the receiving frame, and the sleeves are not connected to the loading groove.

[0012] Furthermore, the desiccant loaded inside the receiving rack and the moisture-proof rack is a dust-free white silica gel desiccant.

[0013] Compared with the prior art, the present invention provides a sealing device for a fireworks propellant box. This device involves fixing multiple launch tubes by inserting them into the sleeves of a receiving frame, then placing the entire assembly into a loading tube. The top of the loading tube is covered by a top cover, and the bottom is supported by a base. Sealing is achieved by filling the top and bottom sealing grooves with sealant. A desiccant in the loading cavity of the moisture-proof frame absorbs moisture that may seep in from the outside through a second connecting hole. The loading groove within the receiving frame also contains desiccant, which absorbs moisture from inside the tube through a first connecting hole. This provides multi-layered moisture protection for the launch tubes. Its advantages include: [The text abruptly ends here, likely due to an incomplete sentence or missing information.] The design of the top cover, base, loading cylinder, and top protective layer, along with the sealing groove, ensures the stability and airtightness of the overall structure. The protective mechanism (moisture-proof rack, outer waterproof layer, inner waterproof layer, supporting cardboard, and desiccant) forms a double waterproof layer and a moisture-absorbing barrier, effectively isolating external humid air. The receiving mechanism (receiving frame, connecting cylinder, and desiccant) further provides localized moisture protection and positioning support around the launch tube. The entire structure is made of flame-retardant foam and aluminum foil, ensuring moisture protection and airtightness while also taking into account fire safety and fragility during launch. This significantly improves the moisture-proof reliability and safety of the fireworks launcher during storage and transportation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of the fireworks propellant box provided in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the loading cylinder provided in an embodiment of the present invention;

[0017] Figure 3 This is a diagram illustrating the internal structure of the support frame provided in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the bottom structure of the support frame provided in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the disassembled sidewall structure of the loading cylinder provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the top cover structure provided in an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the base structure provided in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Top cover; 2. Loading cylinder; 3. Base; 4. Support cardboard; 5. Launching cylinder; 6. Receiving frame; 7. Connecting hole one; 8. Socket cylinder; 9. Loading groove; 10. Moisture-proof rack; 11. Loading cavity; 12. Connecting hole two; 13. Outer waterproof layer; 14. Top protective layer; 15. Top sealing groove; 16. Bottom sealing groove; 17. Inner waterproof layer. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] As attached Figure 1 To be continued Figure 7 As shown:

[0026] Example 1:

[0027] This invention provides a sealing device for a fireworks propellant box, comprising a loading cylinder 2, which holds a plurality of launch tubes 5, and further comprising: a support mechanism fixedly disposed at the top and bottom of the loading cylinder 2 for supporting and protecting the loading cylinder 2 and the plurality of launch tubes 5 within the loading cylinder 2; the support mechanism including a base 3 fixedly disposed at the bottom of the loading cylinder 2 and a top cover 1 fixedly disposed at the top of the loading cylinder 2; a protective mechanism fixedly disposed on the side wall of the loading cylinder 2 for moisture protection of the plurality of launch tubes 5 inside the loading cylinder 2; the protective mechanism including a moisture-proof frame 10 fixedly disposed within the side wall of the loading cylinder 2; an outer waterproof layer 13 fixedly disposed on the outer wall of the moisture-proof frame 10 and an inner waterproof layer 17 fixedly disposed on the inner wall of the moisture-proof frame 10; and a receiving mechanism fixedly disposed on the plurality of launch tubes 5 for limiting and supporting the plurality of launch tubes 5; the receiving mechanism including a plurality of receiving frames 6 fixedly disposed on the plurality of launch tubes 5.

[0028] Simultaneously, multiple launch tubes 5 are inserted into the sockets 8 of the receiving frame 6 for fixation, and then placed as a whole into the loading tube 2. The top of the loading tube 2 is covered by the top cover 1, and the bottom is supported by the base 3. The upper and lower ends are sealed by filling the top sealing groove 15 and the bottom sealing groove 16 with sealant. The desiccant in the loading cavity 11 of the moisture-proof rack 10 absorbs moisture that may seep in from the outside through the second connecting hole 12. The loading groove 9 in the receiving frame 6 is also filled with desiccant and absorbs moisture inside the tube through the first connecting hole 7, thereby achieving multi-layer moisture protection for the launch tubes 5. Its advantages are: through the support mechanism (top cover 1, base 3, loading tube 2, and bottom sealing groove 16), the launch tubes 5 are protected against moisture. The design of the carrier tube 2 and top protective layer 14, along with the sealing groove, achieves the stability and sealing of the overall structure. The protective mechanism (moisture-proof rack 10, outer waterproof layer 13, inner waterproof layer 17, supporting cardboard 4, and desiccant) forms a double waterproof layer and a moisture-absorbing barrier, effectively isolating external humid air. The receiving mechanism (receiving frame 6, sleeve tube 8, and desiccant) further provides local moisture protection and positioning support around the launch tube 5. The entire structure is made of flame-retardant foam and aluminum foil, ensuring moisture protection and sealing while also taking into account fire safety and fragility during launch. This significantly improves the moisture protection reliability and safety of the fireworks launcher during storage and transportation.

[0029] refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 The support mechanism includes a loading cylinder 2, a top cover 1, a top sealing groove 15, a base 3, and a bottom sealing groove 16;

[0030] By providing a loading cylinder 2, the loading cylinder 2 can protect the sides of several launching cylinders 5 inside it. A top cover 1 is fixedly connected to the top of the loading cylinder 2, and a top protective layer 14 is fixedly connected to the top cover 1. The top cover 1 is fixedly connected to the top of the loading cylinder 2 to protect the top of several launching cylinders 5. The top protective layer 14 can protect the top of several launching cylinders 5 without affecting the normal release of the launching cylinders 5. A top sealing groove 15 is opened at the bottom of the top cover 1, so that the top of the loading cylinder 2 can be locked into the top sealing groove 15. The top of the loading cylinder 2 is then sealed and connected to the top sealing groove 15 with sealant. This makes it convenient for the top cover 1 to cooperate with the loading cylinder 2 to protect the top and sides of several launching cylinders 5.

[0031] Meanwhile, a base 3 is fixedly connected to the bottom of the loading cylinder 2, and a bottom sealing groove 16 is provided on the top of the base 3, so that the bottom of the loading cylinder 2 can be engaged in the bottom sealing groove 16. The bottom of the loading cylinder 2 is then sealed and fixedly connected to the bottom sealing groove 16 with sealant. Several launching cylinders 5 are fixedly connected to the base 3, so that the base 3 can cooperate with the loading cylinder 2 at the bottom to support and protect the bottom of several launching cylinders 5.

[0032] Secondly, the top cover 1 and the base 3 can be made of flame-retardant foam material, which can not only provide good support, but also provide sealing and moisture protection. The top protective layer 14 can be made of aluminum foil, which can work with the top cover 1 to protect the top of several launch tubes 5 from moisture, and can also quickly break through the top protective layer 14 when several launch tubes 5 are released, so as not to affect the use of the launch tubes 5.

[0033] Example 2:

[0034] refer to Figure 2 and Figure 5 The protective mechanism includes a loading cylinder 2, a moisture-proof rack 10, a supporting cardboard 4, a loading cavity 11, a connecting hole 2 12, an outer waterproof layer 13, and an inner waterproof layer 17;

[0035] By fixing a moisture-proof rack 10 inside the loading cylinder 2 and fixing several support cardboard 4 inside the moisture-proof rack 10, the several support cardboard 4 can fix and support the moisture-proof rack 10 and the loading cylinder 2, thereby maintaining the support rigidity of the moisture-proof rack 10 and the loading cylinder 2, so as to facilitate the protection of the moisture-proof rack 10 and the loading cylinder 2 on the sides of several launching cylinders 5. In addition, by using several support cardboard 4 in conjunction with the moisture-proof rack 10, the top of the loading cylinder 2 is supported and connected to the top cover 1, and the bottom of the loading cylinder 2 is supported and connected to the base 3.

[0036] Meanwhile, an outer waterproof layer 13 is fixedly connected to the side wall of the moisture-proof rack 10, and the outer waterproof layer 13 is located on the outside of the side wall of the loading cylinder 2, so that the outer waterproof layer 13 can protect the moisture-proof rack 10 and several launching cylinders 5 inside the loading cylinder 2 on the outside of the side wall of the loading cylinder 2. An inner waterproof layer 17 is fixedly connected to the inner wall of the moisture-proof rack 10, so that the inner waterproof layer 17 can provide secondary protection for several launching cylinders 5 inside the loading cylinder 2 on the inside of the side wall of the loading cylinder 2, thereby improving the overall protection capability of the loading cylinder 2 in conjunction with the outer waterproof layer 13.

[0037] Secondly, a loading cavity 11 is provided inside the moisture-proof rack 10, and the loading cavity 11 is not connected to several supporting cardboard 4. A dust-free white silica gel desiccant is placed inside the loading cavity 11. Several connecting holes 12 are provided on the side wall of the moisture-proof rack 10, on one side of the outer waterproof layer 13. This allows the loading cylinder 2 to enter the loading cavity 11 through the connecting holes 12 when the outer waterproof layer 13 is damaged during use and external moisture enters. The moisture is then absorbed by the desiccant, thus preventing moisture from penetrating the inner waterproof layer 17. This facilitates moisture protection for the several launching tubes 5 inside the loading cylinder 2.

[0038] Example 3:

[0039] refer to Figure 2 , Figure 3 and Figure 4 The receiving mechanism includes a receiving frame 6, a loading groove 9, a connecting hole 7, and a sleeve 8;

[0040] Inside the loading cylinder 2, several receiving frames 6 are fixedly connected to several launching cylinders 5. A loading groove 9 is provided inside the receiving frame 6, allowing dust-free white silica gel desiccant to be loaded into the receiving frame 6 through the loading groove 9. Several connecting holes 7 are provided on the side wall of the receiving frame 6. This allows moisture to enter the loading cylinder 2 during storage or transportation if the protective structure of the top cover 1, loading cylinder 2, or base 3 is accidentally damaged. The moisture will then enter the loading groove 9 through the connecting holes 7, where the dust-free white silica gel desiccant will absorb the moisture, thus preventing moisture from corroding the launching cylinders 5 and achieving the purpose of protecting the launching cylinders 5.

[0041] Meanwhile, several sleeves 8 are fixedly connected inside the receiving frame 6, and several sleeves 8 are not connected to the inside of the loading groove 9, so that several receiving frames 6 can be sleeved on several launching tubes 5 through several sleeves 8 during use, thereby achieving the purpose of several receiving frames 6 protecting several launching tubes 5.

[0042] Secondly, the receiving frame 6 and the dust-free white silica gel desiccant loaded inside the receiving frame 6 can only adsorb and protect the moisture in the loading cylinder 2, but it does not mean that it can completely prevent moisture from entering the launching cylinder 5. In addition, it works with the moisture-proof rack 10 inside the loading cylinder 2 to provide double protection, so as to achieve the purpose of effectively protecting the moisture in the air.

[0043] Working principle: First, multiple launch tubes 5, used to hold the propellant, are prepared as the core protected objects. Then, the receiving mechanism is assembled: the receiving frame 6 is fitted around each launch tube 5, specifically through several fixed sleeves 8 inside the receiving frame 6, tightly fitting into the corresponding parts of the launch tube 5, thereby limiting and physically supporting each launch tube 5. Before installation, each receiving frame 6 has a loading slot 9 pre-filled with a specific desiccant (preferably dust-free white silica gel desiccant). The loading slot 9 communicates with the external environment through several connecting holes 7 on the side wall of the receiving frame 6. This step lays the foundation for establishing the first active moisture absorption defense line inside the loading tube 2. After completing the assembly of the launch tube 5 and the receiving frame 6, the construction of the main sealed container begins. The base 3 of the support mechanism is placed stably, and its top has an annular bottom sealing groove 16. Next, the bottom edge of the loading tube 2 is aligned and placed into the bottom sealing groove 16 of the base 3, and the groove is filled with sealant (such as silicone sealant) to form a firm and moisture-proof seal between the bottom of the loading tube 2 and the top of the base 3. Then, multiple launch tubes 5 with the receiving frame 6 installed are carefully placed vertically into the interior of the loading tube 2, so that their bottoms rest on the bearing surface of the base 3. Next, the key components of the protective mechanism are installed. A moisture-proof rack 10 is fixedly installed inside the side wall of the loading tube 2. Before installation, the rack has an internal opening. The loading cavity 11 is pre-filled with sufficient dust-free white silica gel desiccant. The outer wall of the moisture-proof rack 10 is fixedly covered with an outer waterproof layer 13 (such as a waterproof film or coating), and the inner wall is fixedly covered with an inner waterproof layer 17, together forming a double waterproof barrier on the sides. Several connecting holes 12 are also opened on the side wall of the moisture-proof rack 10 on the side of the outer waterproof layer 13, allowing moisture that may seep in from the outside to enter the loading cavity 11 and be absorbed by the desiccant. In order to enhance the structural stability, several supporting cardboard 4 that are not connected to the loading cavity 11 are also fixedly installed inside the moisture-proof rack 10. They play a role in strengthening the support of the moisture-proof rack 10 and the entire cylinder wall of the loading cylinder 2. After all the launching cylinders 5 and the internal protective structure are in place, the top is... The sealing and support mechanism's top cover 1 is removed, and its bottom has a top sealing groove 15 that matches the outer edge of the top of the loading cylinder 2. The top edge of the loading cylinder 2 is aligned and embedded into the top sealing groove 15 of the top cover 1. Sealant is also filled into this groove to achieve a sealed connection between the top cover 1 and the top of the loading cylinder 2. A top protective layer 14 (e.g., an aluminum foil layer) is fixedly installed inside the top cover 1. While providing top moisture protection, due to its material properties, it can be easily broken during fireworks launch without affecting the normal launch of the propellant inside the launch tube 5. At this point, the main assembly and static sealing of the device are complete. During use (storage and transportation), the device's moisture protection mechanism continues to operate, preventing moisture from the external environment from penetrating.First, it encounters a physical sealing barrier composed of the top cover 1 (including the top protective layer 14), the side wall of the loading cylinder 2 (including the outer waterproof layer 13), the base 3, and various sealants. Even if a small amount of moisture seeps in due to a localized weakening of the barrier caused by an accident, it will face multiple layers of interception: moisture seeping into the internal cavity of the loading cylinder 2 from the top or side wall gaps will be absorbed by the desiccant in the loading slot 9 of the receiving frame 6 through the connecting hole 7; moisture seeping in from the side wall of the loading cylinder 2 will be absorbed by the larger capacity desiccant in its loading cavity 11 through the connecting hole 12 on the moisture-proof rack 10; the inner waterproof layer 17 further prevents moisture from directly contacting the launch tube 5. The receiving frame 6 and the desiccant in the moisture-proof rack 10 work together. This creates a dynamic humidity control environment inside the device. When needed, removing or breaking the top cover 1 and top protective layer 14 allows the dry, intact, and functional launch tube 5 to be taken out for subsequent installation and launch operations. The core of the entire usage process lies in achieving initial sealing through precise mechanical structure assembly, and relying on the built-in multiple desiccant storage compartments (loading slot 9 and loading cavity 11) and their ventilation holes (connecting hole 1 7 and connecting hole 2 12) to construct an active, multi-level moisture absorption and protection system. This maximizes the protection of the launch tube 5 and its internal propellant and fuse from moisture damage throughout the entire storage and transportation cycle, ensuring the reliability and safety of the fireworks products.

[0044] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sealing device for a fireworks propellant box, comprising a loading cylinder (2), wherein a plurality of propellant tubes (5) are loaded inside the loading cylinder (2), characterized in that, Also includes: A support mechanism is fixedly installed at the top and bottom of the loading cylinder (2) to support and protect the loading cylinder (2) and several launching cylinders (5) inside the loading cylinder (2). The support mechanism includes a base (3) fixedly installed at the bottom of the loading cylinder (2) and a top cover (1) fixedly installed at the top of the loading cylinder (2). The protective mechanism is fixedly installed on the side wall of the loading cylinder (2) and is used to protect the several launching cylinders (5) inside the loading cylinder (2) from moisture. The protective mechanism includes a moisture-proof rack (10) fixedly installed in the side wall of the loading cylinder (2). The outer wall of the moisture-proof rack (10) is fixedly provided with an outer waterproof layer (13), and the inner wall of the moisture-proof rack (10) is fixedly provided with an inner waterproof layer (17). The receiving mechanism is fixedly installed on several launch tubes (5) for limiting and supporting the several launch tubes (5). The receiving mechanism includes several receiving frames (6) fixedly installed on several launch tubes (5).

2. The sealing device for a fireworks propellant box according to claim 1, characterized in that, The support mechanism also includes a top sealing groove (15) opened at the bottom of the top cover (1), the top of the loading cylinder (2) is fixedly installed in the top sealing groove (15), and the top sealing groove (15) is filled with sealant for sealing connection between the bottom of the top cover (1) and the top of the loading cylinder (2). The top cover (1) is fixedly provided with a top protective layer (14).

3. The sealing device for a fireworks propellant box according to claim 2, characterized in that, The support mechanism also includes a bottom sealing groove (16) opened on the top of the base (3), which is also filled with sealant for sealing connection between the top of the base (3) and the bottom of the loading cylinder (2).

4. The sealing device for a fireworks propellant box according to claim 1, characterized in that, The protective mechanism also includes a loading cavity (11) located inside the moisture-proof rack (10), the loading cavity (11) being filled with a desiccant; The moisture-proof rack (10) has several connecting holes (12) on one side of its sidewall, and several of the connecting holes (12) are located on one side of the outer waterproof layer (13).

5. A sealing device for a fireworks propellant box according to claim 4, characterized in that, The protective mechanism also includes several supporting cardboard (4) fixedly installed inside the moisture-proof rack (10), and the several supporting cardboard (4) are not connected to the inside of the moisture-proof rack (10).

6. A sealing device for a fireworks propellant box according to claim 1, characterized in that, The receiving mechanism also includes a loading slot (9) opened inside the receiving frame (6), through which the receiving frame (6) is loaded with desiccant; The side wall of the receiving frame (6) has several connecting holes (7).

7. A sealing device for a fireworks propellant box according to claim 6, characterized in that, The receiving mechanism also includes several sleeves (8) fixedly installed inside the receiving frame (6), and the several sleeves (8) are not connected to the loading groove (9).

8. A sealing device for a fireworks propellant box according to claim 1, characterized in that, The desiccant loaded in the receiving rack (6) and the moisture-proof rack (10) is a dust-free white silica gel desiccant.

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