Firework and cracker production transmission device

By using cylinders to replace motors in the production of fireworks and firecrackers, and using the conversion mechanism of rack and drive gears, stable and uninterrupted rotating power output is achieved, which solves the risk of static electricity and short circuit when the motor drives the equipment and improves production safety.

CN223271765UActive Publication Date: 2025-08-26WANZAI JINTENG FIREWORKS MANUFACTURING CO LTD
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Patent Information

Application Number
CN202422463007.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-08-26
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

During the firework production process, the equipment driven by the motor is prone to static electricity or short circuit when it comes into contact with firework materials, semi-finished products or finished products, resulting in safety hazards of explosion accidents.

Method used

The cylinder is used as the power source, and the transmission rod is driven to rotate through the rack and drive gear. The intermittent components and the conversion mechanism are used to achieve stable and uninterrupted rotating power output, replacing the motor as the power source.

Benefits of technology

It provides more stable and uninterrupted rotating power output, reduces the risk of static electricity and short circuits, and improves the safety of firework production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of firework production, in particular to a firework and cracker production transmission device which comprises an air cylinder arranged on a machine box, a rack is fixedly connected to the output end of the air cylinder through an L-shaped rod, the rack is connected with a driving gear in a meshed mode, and the driving gear is fixedly connected to a transmission rod. The transmission rod is rotationally connected into the machine box, the switching mechanism is arranged in the machine box, the switching mechanism comprises supporting rods rotationally connected to the two ends of the transmission rod respectively, and the two supporting rods are connected with a first transmission assembly and a second transmission assembly respectively. The first transmission assembly and the second transmission assembly are both in transmission connection with the output shaft, the output shaft is rotationally connected into the machine box, the two intermittent assemblies are arranged between the supporting rod and the transmission rods respectively, the supporting rod can only rotate in one direction through the intermittent assemblies, and the two intermittent assemblies enable the rotating directions of the supporting rod to be opposite.
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Description

Technical Field

[0001] The utility model relates to the technical field of fireworks production, in particular to a fireworks production transmission device. Background Art

[0002] Fireworks, also known as fireworks, fireworks, and firecrackers, are entertainment products that use pyrotechnic powder as raw material to produce sound, light, and color.

[0003] During the fireworks production process, motors are required as a source of rotational power for stirring and conveyor belts. However, any powered equipment has a certain chance of generating static electricity or short circuits. When these static electricity or short circuits come into contact with fireworks materials, semi-finished products, or finished products, explosions are likely to occur, posing a major safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a fireworks and firecracker production transmission device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A fireworks and firecrackers production transmission device includes a cylinder arranged on a chassis, a rack fixedly connected to the output end of the cylinder via an L-rod, the rack meshingly connected to a drive gear, the drive gear fixedly connected to a transmission rod, the transmission rod rotatably connected in the chassis, including a conversion mechanism arranged in the chassis, the conversion mechanism including support rods rotatably connected to the two ends of the transmission rod, the two support rods are respectively connected to a first transmission assembly and a second transmission assembly, the first transmission assembly and the second transmission assembly are both connected to an output shaft for transmission, the output shaft is rotatably connected in the chassis, and also includes two intermittent assemblies respectively arranged between the support rod and the transmission rod, the intermittent assembly enables the support rod to rotate only in one direction, and the two intermittent assemblies enable the support rod to rotate in opposite directions.

[0007] Furthermore, the intermittent component includes a plurality of ratchet grooves connected end to end and annularly arranged at the end of the transmission rod, a disc fixedly connected to the support rod and clamped with the end of the transmission rod, a plurality of grooves are provided on the side wall of the disc, and a blocking unit is provided in each of the grooves. When the transmission rod rotates, the blocking unit is clamped in the ratchet groove, and the transmission rod drives the support rod to rotate; when the transmission rod rotates in the opposite direction, the blocking unit does not extend into the ratchet groove, and the transmission rod does not drive the support rod to rotate.

[0008] Furthermore, the blocking unit includes a spring fixedly arranged in the groove, and a pawl is rotatably arranged in the groove. The spring abuts against the pawl so that the pawl extends into the ratchet groove.

[0009] Furthermore, the first transmission assembly includes a first gear fixedly connected to a support rod on one side, the first gear is meshed with a second gear, and the second gear is fixedly connected to the output shaft.

[0010] Furthermore, the second transmission assembly includes a third gear fixedly connected to the support rod on the other side, the third gear is meshed with a fourth gear, the fourth gear is meshed with a fifth gear, the fourth gear is rotatably connected to the chassis, and the fifth gear is fixedly connected to the output shaft.

[0011] In the above technical solution, the fireworks and firecracker production transmission device provided by the present invention has the following beneficial effects:

[0012] Through the provided conversion mechanism, the cylinder drives the transmission rod to rotate through the rack and drive gear. The rotation of the transmission rod drives the support rod on one side to rotate through the gap assembly. The rotation of the support rod drives the corresponding first transmission assembly or second transmission assembly to move, so that the output shaft rotates. When the cylinder drives the transmission rod to rotate in the opposite direction, the transmission rod drives the support rod on the other side to rotate. The rotation of the support rod drives the corresponding first transmission assembly or second transmission assembly to move, so that the output shaft keeps rotating in the same direction. That is, the reciprocating movement of the cylinder drives the output shaft to rotate in the same direction. The utility model uses the cylinder to replace the motor as the power source and fully utilizes the power of the cylinder to provide a more stable and uninterrupted rotational power output.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0017] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional structural diagram of an intermittent component provided in an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 11. Support rod; 2. Transmission rod; 31. First gear; 32. Second gear; 41. Third gear; 42. Fourth gear; 43. Fifth gear; 5. Output shaft; 6. Chassis; 71. Ratchet groove; 72. Disc; 73. Groove; 74. Spring; 75. Pawl. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] See also Figure 1-3 , a fireworks and firecrackers production transmission device, including a cylinder provided on a chassis 6, a rack fixedly connected to the output end of the cylinder through an L rod, the rack meshing with a driving gear, the driving gear fixedly connected to the transmission rod 2, the transmission rod 2 is rotatably connected to the chassis 6, including a conversion mechanism provided in the chassis 6, the conversion mechanism includes support rods 11 respectively rotatably connected to both ends of the transmission rod 2, the two support rods 11 are respectively connected to a first transmission assembly and a second transmission assembly, the first transmission assembly and the second transmission assembly are both transmission-connected to the output shaft 5, the output shaft 5 is rotatably connected to the chassis 6, and also includes two intermittent assemblies respectively provided between the support rod 11 and the transmission rod 2, the intermittent assembly enables the support rod 11 to rotate only in one direction, and the two intermittent assemblies enable the support rod 11 to rotate in opposite directions.

[0023] Through the provided conversion mechanism, the cylinder drives the transmission rod 2 to rotate via the rack and the drive gear. The rotation of the transmission rod 2 drives the support rod 11 on one side to rotate through the gap assembly. The rotation of the support rod 11 drives the corresponding first transmission assembly or second transmission assembly to rotate the output shaft 5. When the cylinder drives the transmission rod 2 to rotate in the opposite direction, the transmission rod 2 drives the support rod 11 on the other side to rotate. The rotation of the support rod 11 drives the corresponding first transmission assembly or second transmission assembly to rotate the output shaft 5, so that the output shaft 5 keeps rotating in the same direction. That is, the reciprocating movement of the cylinder drives the output shaft 5 to rotate in the same direction. The present utility model uses a cylinder to replace the motor as the power source and fully utilizes the power of the cylinder to provide a more stable and uninterrupted rotational power output.

[0024] Furthermore, the intermittent assembly includes a plurality of ratchet grooves 71 circumferentially arranged end to end at the end of the transmission rod 2. A disc 72 is fixedly connected to the support rod 11 and engages with the end of the transmission rod 2. The sidewall of the disc 72 is provided with a plurality of grooves 73. Each groove 73 is provided with a blocking unit. When the transmission rod 2 rotates, the blocking unit engages with the ratchet groove 71, and the transmission rod 2 drives the support rod 11 to rotate. When the transmission rod 2 rotates in the opposite direction, the blocking unit does not extend into the ratchet groove 71, and the transmission rod 2 does not drive the support rod 11 to rotate. The intermittent assembly ensures that the transmission rod 2 can only drive the support rod 11 to rotate in one direction.

[0025] Furthermore, the blocking unit includes a spring 74 fixedly disposed in the groove 73 . A pawl 75 is rotatably disposed in the groove 73 . The spring 74 abuts against the pawl 75 so that the pawl 75 extends into the ratchet groove 71 .

[0026] Furthermore, the first transmission assembly includes a first gear 31 fixedly connected to the one side support rod 11 , the first gear 31 is meshed with a second gear 32 , and the second gear 32 is fixedly connected to the output shaft 5 .

[0027] Furthermore, the second transmission assembly includes a third gear 41 fixedly connected to the support rod 11 on the other side, the third gear 41 is meshed with a fourth gear 42, the fourth gear 42 is meshed with a fifth gear 43, the fourth gear 42 is rotatably connected to the chassis 6, and the fifth gear 43 is fixedly connected to the output shaft 5.

[0028] Working Principle: The cylinder drives the transmission rod 2 through the rack and drive gear. This rotation drives the support rod 11 on one side through the gap assembly. This rotation drives the first gear 31, which in turn drives the output shaft 5 through the second gear 32. When the cylinder drives the transmission rod 2 in the opposite direction, the transmission rod 2 drives the support rod 11 on the other side through the gap assembly. This rotation drives the third gear 41, which in turn drives the fifth gear 43 through the fourth gear 42. The fifth gear 43 drives the output shaft 5 in the same direction, thus providing a rotational power source for fireworks production. This utility model uses a cylinder instead of a motor as the power source and fully utilizes the power of the cylinder to provide a more stable and uninterrupted rotational power output.

[0029] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description 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 fireworks and firecracker production transmission device, comprising a cylinder mounted on a chassis (6), wherein a rack is fixedly connected to an output end of the cylinder via an L-rod, wherein the rack is meshedly connected to a drive gear, wherein the drive gear is fixedly connected to a transmission rod (2), and wherein the transmission rod (2) is rotatably connected to the chassis (6), characterized in that: The invention comprises a conversion mechanism arranged in a chassis (6), wherein the conversion mechanism comprises support rods (11) respectively connected to the two ends of a transmission rod (2), wherein the two support rods (11) are respectively connected to a first transmission assembly and a second transmission assembly, wherein the first transmission assembly and the second transmission assembly are both connected to an output shaft (5) in a transmission manner, and the output shaft (5) is connected in a rotation manner in the chassis (6), and further comprises two intermittent assemblies respectively arranged between the support rod (11) and the transmission rod (2), wherein the intermittent assemblies enable the support rod (11) to rotate in only one direction, and the two intermittent assemblies enable the support rod (11) to rotate in opposite directions.

2. A fireworks and firecracker production transmission device according to claim 1, characterized in that: The intermittent assembly comprises a plurality of ratchet grooves (71) circumferentially arranged at the end of the transmission rod (2) and connected end to end; a disc (72) is fixedly connected to the support rod (11) and is engaged with the end of the transmission rod (2); a plurality of grooves (73) are provided on the side wall of the disc (72); a blocking unit is provided in each of the grooves (73); when the transmission rod (2) rotates, the blocking unit is engaged in the ratchet groove (71), and the transmission rod (2) drives the support rod (11) to rotate; when the transmission rod (2) rotates in the opposite direction, the blocking unit does not extend into the ratchet groove (71), and the transmission rod (2) does not drive the support rod (11) to rotate.

3. A fireworks and firecracker production transmission device according to claim 2, characterized in that: The blocking unit includes a spring (74) fixedly arranged in the groove (73), a pawl (75) is rotatably arranged in the groove (73), and the spring (74) abuts against the pawl (75) so that the pawl (75) extends into the ratchet groove (71).

4. The fireworks production transmission device according to claim 1, characterized in that: The first transmission assembly comprises a first gear (31) fixedly connected to a side support rod (11); the first gear (31) is meshedly connected to a second gear (32); and the second gear (32) is fixedly connected to an output shaft (5).

5. The fireworks and firecracker production transmission device according to claim 1, characterized in that: The second transmission assembly comprises a third gear (41) fixedly connected to the support rod (11) on the other side, the third gear (41) is meshedly connected to a fourth gear (42), the fourth gear (42) is meshedly connected to a fifth gear (43), the fourth gear (42) is rotatably connected to the chassis (6), and the fifth gear (43) is fixedly connected to the output shaft (5).