Series connector of firework leads

Abstract

The utility model discloses a series connector of firework leads, which relates to the technical field of fireworks and comprises a first quick lead, a second quick lead, a slow lead, a first connector and a second connector. The first quick lead and the second quick lead are inserted into the first connector and the second connector in a circuitous mode respectively, the slow lead is inserted into the first connector and partially attached to the first quick lead, and safe ignition is achieved. The first connector and the second connector are connected and fixed through a clamping structure, and a quick lead inlet hole, a quick lead outlet hole, a slow lead inlet hole and a slow lead inserting hole are formed in the first connector and the second connector, so that stable combustion of leads is ensured. The clamping structure comprises an insertion arm, a barb and a clamping protrusion, and the connection firmness is enhanced by combining the counterpoint design of an insertion rod and an insertion groove. In addition, flow guide holes are formed in the two sides of the connector, and sufficient oxygen is guaranteed during combustion. The utility model solves the problems that the traditional adhesive tape is low in lead bonding efficiency and easy to fall off, has the advantages of simplicity and convenience in operation, reliability in connection, high safety and the like, and is suitable for series firework setting off.

Description

Technical Field

[0001] This utility model relates to the field of fireworks technology, specifically a series connector for fireworks fuses. Background Technology

[0002] Fireworks, as a traditional celebratory item, are widely used in festivals, weddings, opening ceremonies, and other occasions. To achieve more dazzling and diverse display effects, several fireworks are often launched in series. Current methods of stringing fireworks together mainly rely on manual operation, where the fuses of multiple fireworks are glued together with tape or other adhesive materials. However, this method has the following significant problems:

[0003] 1. Cumbersome and inefficient operation: Using tape to attach fuses requires a lot of time and effort, especially when multiple fireworks need to be connected in series. The operation is complicated and prone to errors.

[0004] 2. Poor connection reliability: When the fireworks are dragged or moved, the tape-bonded fuse is easily detached due to external force, causing the series firing to fail and affecting the overall firing effect.

[0005] 3. Safety hazards: The fuses held together by tape may break during the burning process due to weak adhesion, causing the fireworks to fail to ignite in the expected sequence, and may even lead to accidents. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a series connector for fireworks fuses, solving the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a series connector for fireworks fuses, comprising a first fast fuse, a second fast fuse, a slow fuse, a first connector, and a second connector. The first fast fuse and the second fast fuse are respectively inserted into the first connector and the second connector, and are distributed in a meandering manner. The slow fuse is inserted into the first connector, with one end extending outward and the other end extending towards the inside of the first connector, and fitting against a local section of the first fast fuse. The first connector and the second connector are connected and fixed by a snap-fit ​​structure.

[0008] Furthermore, both the first and second connectors have a fast lead wire inlet hole, a fast lead wire outlet hole, and a slow lead wire insertion hole inside, and a slow lead wire inlet hole is provided at the top.

[0009] Furthermore, one end of the first quick lead is inserted into the quick lead inlet of the first connector, and after being bent twice at 90°, it exits through the quick lead outlet; the second quick lead is inserted into the second connector in the same manner.

[0010] Furthermore, one end of the slow lead is inserted into the slow lead inlet of the first connector, and after being bent at 90° once, it is inserted into the slow lead socket, with its bent part fitting against the bent part of the first fast lead.

[0011] Furthermore, the engaging structure includes:

[0012] The plug arm is integrally connected to the adjacent ends of the first and second connectors;

[0013] A locking protrusion integrally connected inside the adjacent ends of the first and second connectors;

[0014] The end of the plug arm is provided with a barb, and the plug arm can undergo elastic deformation;

[0015] The barb engages and is fixed with the locking protrusion.

[0016] Furthermore, each of the adjacent ends of the first and second connectors is provided with a plug and a slot. The plug is inserted into the slot during the insertion process to serve as an alignment tool.

[0017] Furthermore, the inner diameter of the fast lead inlet and fast lead outlet is larger than the diameter of the first fast lead and the second fast lead; the inner diameter of the slow lead inlet and slow lead insertion is larger than the diameter of the slow lead; and guide holes are provided on both sides of the first and second connectors to ensure sufficient internal oxygen and prevent the lead from extinguishing due to lack of oxygen during combustion.

[0018] Furthermore, the interior of the first and second connectors is integrally connected with limiting protrusions corresponding to the bending portions of the first and second fast leads, which are used to constrain the horizontal position of the first and second fast leads.

[0019] Furthermore, the slow lead burns at a slower rate than the first and second fast leads to provide a safe ignition time.

[0020] This invention provides a series connector for fireworks fuses. Compared with the prior art, it has the following advantages:

[0021] 1. The series connector of this firework fuse, through the structured design of the first and second connectors, enables the rapid insertion and fixation of the first fast fuse, the second fast fuse, and the slow fuse, eliminating the need for adhesive materials such as tape, significantly reducing operation time and improving the efficiency of firework series connection.

[0022] 2. The series connector of the fireworks fuse adopts a snap-fit ​​structure, barbs and locking protrusions, as well as the alignment design of the plug and slot, to ensure a firm connection between the first and second connectors, avoid the problem of fuse falling off due to dragging or movement, and ensure the stability of the series fireworks display.

[0023] 3. The series connector of the fireworks fuse is designed with a local section of the slow fuse and the first fast fuse in close contact. This design ensures that the first fast fuse will only ignite when the slow fuse burns to the contact point, providing sufficient safe ignition time and reducing safety hazards caused by excessively rapid fuse burning or connection failure.

[0024] 4. The series connector of the fireworks fuse has the first and second fast fuses arranged in a meandering manner inside the connector. Combined with the design of the guide hole, it ensures a sufficient supply of oxygen during combustion, avoids the problem of fuse extinguishing due to lack of oxygen, and ensures the continuity and effect of the fireworks display.

[0025] 5. The series connector of the firework fuse has a symmetrical design for the first and second connectors. The structure is simple and easy to manufacture and assemble. Users only need to insert the fuse into the corresponding hole and complete the locking. The operation is convenient and suitable for large-scale promotion and use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0027] Figure 2 This is a structural schematic diagram of the second connector from a first-view perspective in this utility model;

[0028] Figure 3 This is a structural schematic diagram of the second connector from a second perspective in this utility model;

[0029] Figure 4 This is a schematic diagram of the assembly structure of this utility model;

[0030] Figure 5 This is a half-sectional view of the assembled version of this utility model;

[0031] Figure 6 This is a schematic diagram of the series connection structure of two adjacent connectors of this utility model.

[0032] In the diagram: 1. First fast lead wire; 2. Second fast lead wire; 3. Slow lead wire; 4. First connector; 5. Second connector; 51. Fast lead wire inlet hole; 52. Fast lead wire outlet hole; 53. Slow lead wire inlet hole; 54. Slow lead wire insertion hole; 55. Limiting protrusion; 56. Connecting arm; 57. Barb; 58. Locking protrusion; 59. Insert rod; 510. Slot; 511. Guide hole. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-5 This utility model provides a technical solution: a series connector for fireworks fuses, including a first fast fuse 1, a second fast fuse 2, a slow fuse 3, a first connector 4, and a second connector 5. The first fast fuse 1 and the second fast fuse 2 are respectively inserted into the first connector 4 and the second connector 5. The shapes of the first fast fuse 1 and the second fast fuse 2 inside the first connector 4 and the second connector 5 are both meandering, preferably "U" shaped. This results in greater frictional resistance for the first fast fuse 1 and the second fast fuse 2 inside the first connector 4 and the second connector 5, thereby preventing them from falling off. The slow fuse 3 is inserted into the first connector 4. One end of the slow fuse 3 extends outward, and the other end extends towards the inside of the first connector 4. A local section of the slow fuse 3 is in contact with a local section of the first fast fuse 1. The first connector 4 and the second connector 5 are connected and fixed by a snap-fit ​​structure.

[0035] The first connector 4 and the second connector 5 have the same structure and are symmetrically connected. Specifically, both the first connector 4 and the second connector 5 have a quick-lead inlet hole 51, a quick-lead outlet hole 52, and a slow-lead insertion hole 54 inside. Both the first connector 4 and the second connector 5 have a slow-lead inlet hole 53 at their top. One end of the first quick-lead 1 is inserted into the quick-lead inlet hole 51 of the first connector 4, then bent twice at 90° angles, and finally exits through the quick-lead outlet hole 52 of the first connector 4. Similarly, the second quick-lead 2 is inserted into the second connector 5 in the same manner. One end of the slow fuse 3 is inserted into the slow fuse inlet 53 of the first connector 4. After being bent at 90°, it is inserted into the slow fuse insertion hole 54 of the first connector 4. At this time, the bent part of the slow fuse 3 is in contact with the bent part of the first fast fuse 1. This means that when the user lights the slow fuse 3, because the slow fuse 3 burns at a relatively slow speed, it has enough safe ignition time. When the slow fuse 3 burns to the part in contact, it will ignite the first fast fuse 1. The spark generated by the first fast fuse 1 will ignite the second fast fuse 2, thus realizing the series ignition of the fireworks fuses.

[0036] In addition, inside the first connector 4 and the second connector 5, and corresponding to the bending parts of the first fast lead 1 and the second fast lead 2, a limiting protrusion 55 is integrally connected, which can constrain the horizontal position of the first fast lead 1 and the second fast lead 2.

[0037] The locking structure includes a plug arm 56 integrally connected to the adjacent ends of the first connector 4 and the second connector 5, and a locking protrusion 58 integrally connected inside the adjacent ends of the first connector 4 and the second connector 5. The end of the plug arm 56 is integrally connected to a barb 57, and the plug arm 56 can undergo elastic deformation. When the first connector 4 and the second connector 5 are plugged into each other, during the plugging process, the barb 57 of the first connector 4 will engage and fix with the locking protrusion 58 of the second connector 5. Similarly, the barb 57 of the second connector 5 will engage and fix with the locking protrusion 58 of the first connector 4. It is a two-way locking structure, which is more secure.

[0038] Furthermore, the adjacent ends of the first connector 4 and the second connector 5 are both connected to the insertion rod 59 and have reserved slots 510. During the insertion process of the first connector 4 and the second connector 5, the insertion rod 59 will be inserted into the slot 510 to play a role in alignment.

[0039] The inner diameters of the fast lead inlet hole 51 and the fast lead outlet hole 52 are both larger than the diameters of the first fast lead 1 and the second fast lead 2. Similarly, the slow lead inlet hole 53 and the slow lead insertion hole 54 are both larger than the diameter of the slow lead 3. In addition, guide holes 511 are opened through both sides of the first connector 4 and the second connector 5. The purpose of these settings is to ensure that the first connector 4 and the second connector 5 have sufficient oxygen inside after they are inserted, so as to ensure that the first fast lead 1, the second fast lead 2, and the slow lead 3 will not be extinguished due to lack of oxygen during combustion.

[0040] Finally, please see Figure 6 If there is a series connection between two adjacent connectors (for example, the second connector 5 is connected to another second connector 5, or the first connector 4 is connected to another first connector 4), we can make the length of the first fast lead 1 and the second fast lead 2 longer. This way, it can easily cope with the terrain with corners or long spans, and is more practical.

Claims

1. A series connector for fireworks fuses, characterized in that, It includes a first fast lead (1), a second fast lead (2), a slow lead (3), a first connector (4), and a second connector (5). The first fast lead (1) and the second fast lead (2) are respectively inserted into the first connector (4) and the second connector (5) and are distributed in a meandering manner. The slow lead (3) is inserted into the first connector (4), with one end extending outward and the other end extending towards the inside of the first connector (4) and fitting with a local section of the first fast lead (1). The first connector (4) and the second connector (5) are connected and fixed by a snap-fit ​​structure.

2. The series connector for a fireworks fuse according to claim 1, characterized in that, The first connector (4) and the second connector (5) are provided with a fast lead wire inlet hole (51), a fast lead wire outlet hole (52) and a slow lead wire insertion hole (54) inside, and a slow lead wire inlet hole (53) is provided at the top.

3. A series connector for a fireworks fuse according to claim 2, characterized in that, One end of the first quick lead (1) is inserted into the quick lead inlet (51) of the first connector (4), and after being bent twice at 90°, it comes out through the quick lead outlet (52); the second quick lead (2) is inserted into the second connector (5) in the same way.

4. A series connector for a fireworks fuse according to claim 2, characterized in that, One end of the slow lead (3) is inserted into the slow lead inlet (53) of the first connector (4), and after being bent 90° once, it is inserted into the slow lead insertion hole (54), with its bent part fitting against the bent part of the first fast lead (1).

5. A series connector for a fireworks fuse according to claim 1, characterized in that, The engagement structure includes: The plug arm (56) is integrally connected to the adjacent ends of the first connector (4) and the second connector (5); A locking protrusion (58) is integrally connected inside the adjacent ends of the first connector (4) and the second connector (5); The end of the plug arm (56) is provided with a barb (57), and the plug arm (56) is capable of elastic deformation; The barb (57) engages and is fixed with the locking protrusion (58).

6. A series connector for a fireworks fuse according to claim 1, characterized in that, The first connector (4) and the second connector (5) are provided with a plug (59) and a slot (510) at their adjacent ends. The plug (59) is inserted into the slot (510) during the insertion process to play a positioning role.

7. A series connector for a fireworks fuse according to claim 2, characterized in that, The inner diameter of the fast lead inlet (51) and fast lead outlet (52) is larger than the diameter of the first fast lead (1) and the second fast lead (2); the inner diameter of the slow lead inlet (53) and slow lead insertion (54) is larger than the diameter of the slow lead (3); both sides of the first connector (4) and the second connector (5) are provided with guide holes (511) to ensure sufficient internal oxygen and prevent the lead from going out due to lack of oxygen when burning.

8. A series connector for a fireworks fuse according to claim 1, characterized in that, The first connector (4) and the second connector (5) are integrally connected with limit protrusions (55) corresponding to the bending parts of the first fast lead (1) and the second fast lead (2) to constrain the horizontal position of the first fast lead (1) and the second fast lead (2).

9. A series connector for a fireworks fuse according to claim 1, characterized in that, The slow lead (3) burns at a slower rate than the first fast lead (1) and the second fast lead (2) to provide a safe ignition time.

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