14results about "Firecrackers" patented technology

The embodiment of the utility model provides a safe and continuous setting-off device for double-bang firecrackers, which comprises a base, a firecracker set-off device and a firecracker set-off device, a launching gun barrel is arranged on the support, and the top and the bottom of the launching gun barrel are both provided with openings; a chassis is arranged on the base and is movably connected with the base through a rotating shaft; the base plate is provided with a plurality of guide cylinders used for placing the double-bang firecrackers, the side walls of the guide cylinders are connected end to end to form a ring, and the guide cylinders are communicated with one another, so that blasting fuse parts of the adjacent double-bang firecrackers are deflagrated in the guide cylinders; flow guide plates are arranged at the bottoms of the guide cylinders, so that the chassis is driven to rotate when the double-bang firecracker is launched, and the adjacent guide cylinders are aligned to the bottom of the launched firecracker cylinder. According to the embodiment of the utility model, the plurality of guide cylinders which are communicated with one another and are used for placing the double-sound firecrackers are arranged on the base plate, the base plate is driven to rotate by detonation when the double-sound firecrackers are launched, the adjacent guide cylinders are enabled to align to the bottom of the launched firecracker cylinder, and flame also ignites the blasting fuse parts in the adjacent guide cylinders, so that the firecrackers are continuously set off one by one.

The invention discloses a firecracker detection method, a firecracker detection model training method, a firecracker detection device, firecracker detection equipment and a medium. The method comprises the following steps: performing feature extraction on a collected audio signal to obtain a feature vector; performing aperture classification on the feature vectors to obtain aperture types; performing waveform detection on the feature vector to obtain a propagation shock wave signal and a diffusion shock wave signal; and according to the aperture type, the propagation shock wave signal and the diffusion shock wave signal, judging that the firecracker audio exists in the acquired audio signal and the aperture type of the existing firecracker. According to the embodiment of the invention, the firecracker detection accuracy can be improved.

The utility model relates to the field of firework and cracker production, in particular to an automatic quantitative feeding device for bright beads. According to the automatic quantitative feeding device for the bright beads, the falling precision of the bright beads can be improved, the problem of missing is solved, and the feeding quality and precision of the bright beads are improved. An automatic quantitative feeding device for bright beads comprises a mounting box, a swing frame, first electric push rods and the like, a feeding port is formed in the top of the mounting box, the swing frame is slidably connected into the mounting box, and the first electric push rods are connected to the left side and the right side of the mounting box. The first electric push rod controls the swing frame to reciprocate left and right, the swing frame reciprocates left and right to control rolling of the inner bright beads, meanwhile, the driver controls the rotating disc to rotate, the rotating disc rotates to drive the quantitative block to rotate, the quantitative block rotates to be matched with left-right swing of the swing frame, and the bright beads can accurately fall into holes in the quantitative block; and the problem of missing is avoided, and the bright bead feeding quality and precision are improved.

The utility model belongs to the technical field of firework setting-off fixing supporting bodies, and particularly relates to a box body type firework setting-off combined fixing supporting body improved structure which comprises a main box body, a bottom plate and an air bag plate, the top of the main box body is fixedly connected with two cover plates which are symmetrically arranged, and the bottom plate is connected with the inner bottom of the main box body through a plurality of first springs. Sliding blocks are fixedly connected to the two ends of the bottom plate, sliding rods are fixedly connected to the inner wall of the main box body, sliding openings corresponding to the sliding rods are formed in the sliding blocks, a plurality of firework cylinders are slidably inserted between the air bag plate and the bottom plate, a plurality of supporting rods are fixedly connected to the bottom of the air bag plate, and supporting holes corresponding to the supporting rods are formed in the top of the bottom plate. The top of the bottom plate is fixedly connected with a plurality of fixing rods, and the tops of the fixing rods are fixedly connected with a fixing plate. According to the box type firework support, through the arrangement of a reinforcing and buffering structure, the supporting stability of the support body is improved, and therefore the setting-off safety of box type fireworks is effectively guaranteed.

This utility model relates to the technical field of riot control ammunition, specifically a hand-thrown incendiary colored smoke grenade. It includes a casing containing several evenly distributed smoke column fixing chambers, each chamber containing a colored smoke column. The casing also contains propellant tablets that contact the colored smoke columns for ignition. A propellant strip for igniting the propellant tablets is also present within the casing. An ignition mechanism adjacent to the propellant strip is also provided on the casing. This ignition mechanism includes a delayed ignition tube for firing the propellant strip. The delayed ignition tube in the ignition mechanism can be precisely fired, igniting the propellant strip. The propellant strip then transfers the flame to black powder tablets made from a mixture of potassium nitrate, sulfur, and charcoal, ultimately igniting the colored smoke column. The entire ignition process is orderly and efficient, ensuring reliable ignition of the colored smoke grenade when needed. Smoke colors: red, yellow, green, and white. Having four smoke colors allows for the transmission of more signals on the battlefield.

The utility model relates to the field of firecracker production, in particular to a gunpowder compression device for firecracker production. The technical problem that when an existing compacting machine compresses gunpowder, intermittent automatic paper tube supplementing is not convenient, and consequently the working efficiency is low is solved. A gunpowder compression device for firecracker production comprises a bottom frame, a fixing frame fixedly connected to one side of the top of the bottom frame, a discharging hopper fixedly connected to the upper portion of the fixing frame, a discharging mechanism arranged on the fixing frame and a compaction mechanism arranged on the bottom frame. A motor drives a second chain wheel to rotate, the second chain wheel drives a first chain wheel to rotate through a chain, the first chain wheel drives a rotary disc to rotate, the rotary disc drives a plurality of material receiving boxes to rotate, and after one material receiving box moves to be flush with a discharging port of a discharging hopper, under the action of gravity, paper tubes in the discharging hopper can slide into the material receiving box; intermittent automatic paper tube supplementing can be conveniently carried out, and the working efficiency is improved.

The utility model discloses a firecracker lead threading device, and particularly relates to the technical field of firecracker lead threading, the firecracker lead threading device comprises a supporting seat and a vertical plate vertically arranged on the supporting seat, the vertical plate is axially and rotatably provided with a mounting cylinder for inserting a lead roll, and the first end of a main shaft rod fixedly mounted on the mounting cylinder is positioned on one side, opposite to the lead roll, of the supporting seat; the first end of the main shaft rod is fixedly provided with a resistance disc, and the resistance disc is fixedly provided with top air plates arranged in a circular array. According to the firecracker lead threading device provided by the utility model, the firecracker lead on the lead roll drives the resistance disc on the mounting cylinder to rotate when being stretched, and the air blowing assembly is started to blow air to the top air plate, so that the resistance disc is blocked when rotating; the effect of threading and tensioning the lead on the lead roll can be achieved by increasing or decreasing the blast resistance of the blast assembly to the resistance disc, and therefore adjustment is conducted according to the actual requirement of the lead to improve the threading stability of the lead.

The utility model relates to the field of fireworks and firecrackers, in particular to a firecracker cylinder plug-in mounting mechanism, which comprises a lower pressing plate, at least one group of shaping extrusion parts and a plurality of retaining structures extending from the lower pressing plate, and the lower pressing plate and the shaping extrusion parts form a pre-shaping structure. The shaping extrusion parts in the group are oppositely arranged, so that the firecracker barrels extend towards two fixed directions after bearing opposite extrusion force, the retaining structures on the lower pressing plate are opposite to barrel gaps in the firecracker barrels, and the retaining structures are inserted into the barrel gaps to be in contact with the barrel walls so as to clamp the firecracker barrels; the firecracker barrel inserting equipment is designed to simulate workers to grab firecracker barrels, the direction of force applied by grabbing points to the central axis direction of the firecracker barrels from the peripheries of the firecracker barrels, and the firecracker barrel inserting equipment has the advantages that the whole firecracker barrel inserting equipment can keep certain flatness through tight contact formed by deformation between the barrels; and the assembling difficulty with the jig in the later period is reduced.

The invention discloses a serial firecracker safety setting-off box. The setting-off box comprises a first profile protection retaining wall, an upper cover, a base plate, a firecracker setting-off chamber and a profile mounting base. The first section bar protection retaining wall and the second section bar protection retaining wall are both vertically enclosed by corresponding section bars to form a barrel-shaped body, and openings or empty edges of the section bars face towards the inner side. The second profile protection retaining wall is arranged on the first outer ring, the second profile protection retaining wall and the first outer ring are arranged in a staggered mode, a first sound through opening is formed between the adjacent first profiles, a second sound through opening and a third sound through opening are formed between the first profiles and the second profiles and between the adjacent second profiles respectively, and the first sound through openings are shielded by the opposite second profiles; the two protective retaining walls are independently arranged, the number of turns is at least two, and the two protective retaining walls, the upper cover and the base plate jointly define a firecracker setting-off chamber. By means of the double-layer staggered profile retaining wall structure, normal transmission of firecracker set-off sound is guaranteed, meanwhile, chippings and sparks are effectively prevented from splashing, and set-off safety and protection reliability are improved.

The utility model relates to the technical field of fireproof packaging boxes, and discloses a fireproof packaging shell for box firecrackers, which comprises an outer box body, vertex angle anti-collision blocks are arranged at vertex angles of the outer box body, exhaust holes are formed in the top of the outer box body and used for releasing air inside the outer box body, and buffer components are arranged on the inner sides of the vertex angle anti-collision blocks and used for buffering the air inside the outer box body. A flame-retardant assembly is arranged in the outer box body; the flame-retardant assembly comprises an inner paper layer, a tile paper layer and a surface paper layer, the inner paper layer is arranged on the inner side of the inner wall of the outer box body, and the tile paper layer is arranged on the middle side of the interior of the outer box body. According to the utility model, not only can the overall fire resistance be improved, but also the conduction of heat can be reduced, so that the internal temperature can be effectively reduced in a fire environment, the influence of fire behavior on the internal firecracker can be delayed, the safety of the packaging shell can be effectively improved, the explosion risk caused by an accidental fire source can be reduced, and reliable protection can be provided for the storage and transportation of the firecracker.

The invention discloses a chloride ion-free esterified fiber micro-smoke firecracker medicament and a preparation method thereof. Comprising sodium bicarbonate, potassium hydroxide or sodium hydroxide, castor oil, methyl acetate, ethyl formate, ferrocene, manganese dioxide, potassium dichromate and corncob powder fibers. The invention relates to an environment-friendly environment-friendly detergent, which is characterized by comprising 15-25 parts by weight of sodium bicarbonate, 4-10 parts by weight of potassium hydroxide or 8-12 parts by weight of sodium hydroxide, 12-22 parts by weight of castor oil, 25-35 parts by weight of methyl acetate, 25-35 parts by weight of ethyl formate, 6-8 parts by weight of potassium dichromate, 10-22 parts by weight of ferrocene, 2-5 parts by weight of manganese dioxide, 100-200 parts by weight of corncob fiber, and 6-8 cubic meters of water. The preparation method comprises the following steps: crushing a fiber coarse material, soaking in a pool, boiling, rinsing, carrying out centrifugal spin-drying, air-drying, squeezing, distilling, carrying out esterification reaction, adding elements such as potassium, sodium, iron, manganese and the like, sieving, mixing and the like to prepare a finished product. The invention has the advantages of no chlorine salt and sulfide, slight smoke, no toxicity, no pungent smell, no harm to human body, safety, environmental protection and the like.

The invention discloses a firework inner cylinder shaping and sealing-pressing system which comprises an inner cylinder automatic shaping all-in-one machine, an inner cylinder automatic shaping all-in-one machine and a sealing-pressing machine, and the inner cylinder automatic shaping all-in-one machine is used for arranging a plurality of relatively independent inner cylinders in a preset array and packaging and shaping the inner cylinders in the preset array; the inner cylinder sealing and pressing all-in-one machine is used for inserting leads into the inner cylinders in a preset array, injecting soil into the inner cylinders and compacting the soil; wherein the inner cylinder automatic shaping all-in-one machine and the inner cylinder sealing and pressing all-in-one machine are arranged adjacently, and inner cylinders in a preset array are transferred from the inner cylinder automatic shaping all-in-one machine to the inner cylinder sealing and pressing all-in-one machine through a transfer function part. Through the application of the firework inner barrel shaping and sealing pressing system suitable for firework production, scattered firework inner barrels can be automatically arranged in a preset array and packaged and bundled, then leads are loaded into the inner barrels, and the inner barrels are filled with soil and compacted; and the firework inner cylinder structure conforming to the follow-up charging procedure is further obtained.

The invention relates to an automatic recovery device after firecracker setting-off, and belongs to the technical field of firecracker setting-off auxiliary devices. According to the structure, a setting-off box is arranged above a support, and a movable door is arranged on the front surface of the setting-off box; a flow guide cover with an upper opening is arranged at the top of the setting-off box; the other three side faces of the setting-off box are in an open type or a grating type. A hanging frame device is arranged in the setting-off box, the lower surface of the setting-off box is bottomless, and a safety recovery vehicle with small wheels is arranged below the setting-off box. According to the recovery device, shell scraps of fireworks and firecrackers, misfire and sundries can be uniformly recovered into the safety vehicle, the misfire and residual sparks can be effectively extinguished, and the personal safety of cleaning personnel is effectively guaranteed.