9results about How to "Loud volume" patented technology

The utility model relates to quantitative bagging equipment for processing small crispy meat, which aims to solve the technical problem that the small crispy meat discharged from the same bin outlet is easy to leak out of a packaging bag when the opening of the packaging bag is small at present, and comprises a bagging machine body, a conveyor body arranged below the packaging position of the bagging machine body, and a feeding structure, the feeding structure is arranged on a rack of the bagging machine body; the feeding structure comprises a storage bin and a feeding bin; the storage bin is fixedly arranged on a rack of the bagging machine body; the feeding bin is arranged at the discharging end of the storage bin; the two sides of the feeding end of the feeding bin are in guide fit with the two sides of the discharging end of the storage bin through guide assemblies correspondingly. The outer side of the feeding end of the feeding bin is in positioning fit with the outer side of the discharging end of the storage bin through two symmetrically-arranged positioning assemblies. The bagging machine has the advantages that the feeding bins corresponding to the discharging ports are correspondingly selected according to the sizes of packaging bags on the bagging machine body, the feeding bins and the storage bins are fixed for discharging, and the bagging machine is suitable for packaging the packaging bags of different sizes.

The invention discloses a novel quick corner design of a corner shooting system. The novel quick corner design comprises a hand support assembly, a main shell assembly, a limiting device, a locking device and a rotating body assembly. The front end of the main shell assembly is connected with a rotating body assembly, and the bottom of the main shell assembly is provided with a limiting device, a hand supporting assembly and a locking device. The limiting device is provided with n clamping grooves and is connected to the main shell assembly through a rotating shaft. The locking device comprises a conical limiting shaft, the front end of the conical limiting shaft is located in the clamping groove, the rear end of the conical limiting shaft and a jacking screw fixed to the main shell assembly are locked in a telescopic mode through a spring, and the side wall of the conical limiting shaft is connected with an unlocking cap. When the direction of the rotating angle is switched, the unlocking cap is pulled backwards, the conical limiting shaft is driven by the unlocking cap to move backwards to compress the spring and retreat from the clamping groove, and therefore rotation of the rotating body assembly is unlocked. According to the invention, spring type direct drive and hand support back pull type unlocking modes are adopted, so that quick unlocking can be realized, the problems of quick turning radius and loud sound are solved, and meanwhile, the activity space is reduced.

The embodiment of the present invention discloses a back-input sound microphone with double pads, comprising a circuit substrate, a packaging shell buckled on the circuit substrate, a microphone assembly installed on the top of the circuit substrate, a first pin, a second pin and a third pin arranged on the circuit substrate, and the bottom surface of the circuit substrate is provided with: an acoustic through hole; at least one inner pad arranged on the bottom surface of the circuit substrate and connected to the first pin; at least one outer pad arranged around the outer side of the inner pad and connected to the first pin; a plurality of auxiliary pads, at least one rectangular pad connected to the second pin, and at least one rectangular pad connected to the third pin. The present invention adopts a method of outer pads surrounding inner pads, thereby increasing the connection area of ​​the pads and avoiding the problem of insufficient airtightness of a single pad. The double pads connect electrical components, thereby improving the airtightness of the microphone pads, so that the background sound microphone has no sound loss and the microphone sound is louder and clearer.

The present invention belongs to the technical field of traditional Chinese medicine, and specifically relates to a traditional Chinese medicine composition and its use. The present invention is a new use of the traditional Chinese medicine composition developed on the basis of patent ZL200410073958.X, and the traditional Chinese medicine composition is mainly prepared from immature bitter orange, white atractylodes, ginseng, wolfberry, donkey-hide gelatin, polygonum multiflorum, cassia seed and aloe. Pharmacological experiments have shown that the traditional Chinese medicine composition of the present invention can effectively prevent or treat tinnitus.

The utility model belongs to the technical field of soft-shelled turtle breeding, and particularly relates to a noise reduction oxygen supply machine suitable for soft-shelled turtle breeding, which comprises a mounting cylinder, two symmetrically arranged connecting frames are fixedly connected to the lower surface of the mounting cylinder, oxygen pumps are fixedly mounted in the connecting frames, and an auxiliary mechanism is arranged at the bottom of the mounting cylinder; by arranging the auxiliary mechanism, the oxygen dissolving amount of water is increased, the contact area of gas and water is increased, the oxygen supply efficiency is further improved, possible injury accidents are avoided, the noise reduction effect on operation of the oxygen pump and the motor can be achieved, quiet and stable oxygen supply to soft-shelled turtles is further guaranteed, and the service life of the soft-shelled turtles is prolonged. The soft-shelled turtle pond has the advantages of noise reduction, high safety and high oxygen supply efficiency, and compared with an existing oxygen supply device, the soft-shelled turtle pond is easy to raise sludge at the bottom of the pond and large in oxygen supply, and is more suitable for soft-shelled turtles to grow and breed in a quiet and comfortable environment.

The utility model belongs to the technical field of variable-frequency air compressors, and particularly relates to an efficient energy-saving type permanent magnet variable-frequency air compressor which comprises a base plate, a fixing base is fixedly installed on the upper surface of the base plate, an air storage tank is movably installed in the fixing base, and a fixing assembly is fixedly installed on the upper surface of the base plate. One end of the fixing assembly is attached to the outer wall of the air storage tank, a mounting plate is fixedly mounted on the upper surface of the air storage tank, an air compressor body is fixedly mounted on the mounting plate and connected with the air storage tank, two sets of protection frames are movably mounted on the upper surface of the mounting plate, and a pressure gauge is fixedly mounted on the upper surface of the air storage tank. And two groups of partition plates are movably mounted on the inner wall of the gas storage tank. The device has the advantages that when accumulated water is generated in the air storage tank, the two groups of electric push rods push the partition plate to move towards the middle simultaneously, so that the accumulated water can be concentrated on the drainage pipe to be drained.

The utility model relates to the technical field of communication masks, in particular to a communication mask with a built-in sound transmission diaphragm cover and a Bluetooth microphone, which comprises a base body, a mirror surface mounted on the outer side of the base body, a clamping groove formed in the lower side of the mirror surface, and a respirator fixed on the inner wall of the clamping groove, the inner wall of the clamping groove is attached to the outer side of the respirator, a cover plate is fixed to the inner side of the respirator, and a Bluetooth microphone is detachably fixed to the side wall of the cover plate. According to the invention, the installation position of the Bluetooth microphone is changed, and the obstruction of the communication mask to the sound of firefighters is reduced, so that the sound transmitted by the Bluetooth microphone is increased, the noise is reduced, and the communication accuracy of the firefighters is improved.

This utility model discloses a speaker sound outlet cavity structure, including a sound outlet cavity, a speaker, and a pad. The speaker is installed at the upper end of the sound outlet cavity, and the pad is installed at the lower end of the sound outlet cavity. The upper side of the pad has several spaced-apart recesses. One side of the sound outlet cavity has a sound outlet. The speaker and the pad are vertically opposite each other, with the speaker's sound output direction facing the upper side of the pad. The sound emitted by the speaker is reflected by the upper side of the pad and the recesses of the pad before being output from the sound outlet. This utility model can further improve sound loudness and bass effect, and can make the emitted sound have a stereo surround sound effect.

The present application discloses a bone conduction speaker, comprising: a housing; a transducer assembly, which is arranged in the housing and is used to generate vibration under the stimulation of an electrical signal; a vibration transmission assembly, which is used to transmit the vibration generated by the transducer assembly to the skin to which it is attached; the vibration transmission assembly comprises a vibration transmission member connected to the transducer assembly and a fitting member arranged on the vibration transmission member for fitting to the skin; the fitting member comprises a central fitting portion fixedly connected to the vibration transmission member and a peripheral fitting portion surrounding the periphery of the central fitting portion and connected to the outer edge of the central fitting portion, the central fitting portion and the peripheral fitting portion fitting to the skin together; the outer surface of the central fitting portion for fitting to the skin is a first surface, the outer surface of the peripheral fitting portion for fitting to the skin is a second surface, the first surface is a plane, and the second surface is an arc surface. In this way, more vibration signals are transmitted to the cochlea through biological tissues and bones, so that the sound heard by the user is louder.