190results about "Mechanical audible signalling" patented technology

The invention relates to a fire danger warning board, in particular to a multifunctional fire danger warning board for a gymnasium and aims to provide a multifunctional fire danger warning board which can convey information clearly and comprehensively and is high in work efficiency and used for a gymnasium. To solve the technique problem, the multifunctional fire danger warning board for the gymnasium is provided and comprises a fire extinguisher holding box, a bottom plate, a water tank, a right support, a water pump, a swing frame, a first motor, a disk, a connection base, a first swing rod, a connection block, a sliding rail, a sliding block and the like, wherein the fire extinguisher holding box, the water tank and the right support are sequentially arranged at the top of the bottom plate from left to right, the water pump is arranged on the left side of the right support, and a water pipe is connected on the water pump. The multifunctional fire danger warning board can convey information clearly and comprehensively, is high in working efficiency and can increase the escape rate when a fire breaks out.

An acoustic sensor comprises at least one resonant element. A driver comprises an electrical coupling means and an electromagnetic field source arranged such that the electrical coupling means transfers currents to the electromagnetic field source. The electromagnetic field source produces an electromagnetic field that drives the resonant elements to produce acoustic waves directed to a predetermined part of a test sample. Also provided is an electromagnetic detector for receiving the acoustic spectrum omitted from a test sample and an electrical circuit connected to the drive around detector.

A gas flow alarm includes a main barrel with a proximal end and a distal end. The main barrel defines a gas flow direction from the proximal end to the distal end. A cap is disposed slidingly on the main barrel between a proximal position and a distal position. The proximal position of the cap defines a compressed condition of the gas flow alarm and the distal position of the cap defines an expanded condition of the gas flow alarm. A noise generating device is disposed within the main barrel. The noise generating device is adapted to generate noise from the gas flow when the gas flow alarm is in the expanded condition.

The present invention relates to a failure detecting system that enables the detection of a break in a rail and the like by a simple network configuration. Detecting units (20 and 50), relay units (30A, 30B, 60A through 60C) and terminal units (40 and 70) are arranged along rails (11, 11A and 11B). Using the rails (11, 11A and 11B) as transmission media, ultrasonic waves transmitted from the detecting units (20 and 50) are transmitted to the terminal units (40 and 70) by the relay units (30A, 30B, 60A through 60C), and when the terminal units (40 and 70) receive the ultrasonic waves, the ultrasonic waves are returned from the terminal units (40 and 70), relayed by the relay units (30A, 30B, 60A through 60C), and transmitted to the detecting units (20 and 50). Thus, it is judged whether there is a break in the rails (11, 11A and 11B), based on the ultrasonic wave reception state in the detecting units (20 and 50).

The invention relates to a crushing device, and particularly relates to an injector crushing device for medical waste recovery. The injector crushing device for medical waste recovery mainly achievesthe effects that automatic intermittent discharging is conducted through a machine, then secondary mincing is conducted, and the mincing quality is guaranteed. The injector crushing device for medicalwaste recovery comprises a base, a rough crushing mechanism, a fine crushing mechanism and a storage mechanism, wherein a mounting seat is connected to one side of the top of the base; the rough crushing mechanism is connected to one side of the top of the base; the fine crushing mechanism is connected to one side of the top of the base; and the storage mechanism is arranged on the lower portionof the base. By arranging the rough crushing mechanism and the fine crushing mechanism, secondary mincing is conducted on an entering injector, and the mincing quality is guaranteed; and by arranginga feeding mechanism, intermittent discharging is conducted on the entering injector by driving a quantitative feeding and discharging groove wheel to rotate, and the situation that the mincing qualityis affected due to the fact that too many injectors are added at a time is prevented.

The invention belongs to the field of blind person guiding devices, and particularly relates to a safety blindbrick. The safety blindbrick comprises a shell. A brick body is slidingly connected into the shell in a sealed manner, vibration cavities are formed between the shell and the brick body, rings are fixedly connected to the side walls of the vibration cavities through springs, permanent magnets are embedded into the positions, corresponding to the rings, of the brick body, the rings are made of magnetic materials, the rings and the permanent magnets are in heterospolar attraction, four sliding grooves are formed in the brick body, the sliding grooves communicate with the vibration cavities through vent holes, convex blocks are slidingly connected into the sliding grooves through limiting mechanisms in a sealed manner, and the upper ends of the convex blocks stretch out of the brick body. When the walking route of a blind person deviates from a blind, the brick body slightly slides, alarm sound is sent through the rings, the blind person is reminded of correcting the route, dangerous accidents caused by the fact that the blind person deviates from the blind are avoided, the blind person can judge the turning directions of roads ahead according to the rotating directions of the convex blocks, and a good way guiding effect is achieved.

Tubewaves are used to transmit an indication of the depth at which a condition is detected in a well. In particular, the depth is calculated based on the difference in arrival time at the surface of a first tubewave which propagates directly upward in the borehole and a second tubewave which initially travels downward and is then reflected upward. The tubewaves may be generated by a canister designed to implode at a certain pressure. After being introduced into the flowline at an above ground inlet, the canister is carried downhole by gravity and the fluid being pumped. When the canister reaches a depth at which its pressure tolerance is exceeded, it implodes and generates the tubewaves. An analyzer at the surface detects the tubewaves with a hydrophone array and generates a pressure versus depth profile of the well, i.e., one data point for each implosion. Canisters may be acoustically tagged by controlling volume and orifice size in order to generate tubewaves having particular frequency and amplitude characteristics. Canisters may also be configured to produce multiple implosions, e.g., one implosion at each of a selection of different pressures. Canisters may also be equipped with triggering and arming mechanisms, and may generate tubewaves in response to conditions other than a particular pressure.

The invention relates to a method for gasifying solid fuel in a co-current gasifier having a fuel silo (14) and a combustion chamber (32). The method comprises a pyrolysis phase in which the fuel decomposes into pyrolysis products, and a gasification phase in which the pyrolysis products are gasified into product gas. Heat transfer from the combustion chamber (32) to the fuel silo (14) is restricted in the method. This is to ensure that the fuel does not dry and pyrolysis does not take place in the fuel silo. The beginning of the pyrolysis is intentionally transferred as close to the gasification phase as possible, and an attempt is made to make the duration of the pyrolysis phase as short as possible. The rise of the fuel temperature is slowed down by transferring heat generated in the gasification phase to a medium, such as gasification air. In the co-current gasifier according to the invention, between the fuel silo and the combustion chamber, there is a cooling channel (18), which restricts the transfer of heat and also functions as a preheater for the gasification air. The gasifier has an upper floor (16a), which forms the upper surface of the cooling channel, and a lower floor (16b) forming the lower surface of the cooling channel, and the fuel silo is placed above the upper floor and the combustion chamber below the lower floor. The combustion chamber of the gasifier comprises an internal jacket (34), an intermediate jacket (36), an external jacket (38) and a grate (40). The gasification air is arranged to be conducted to the combustion chamber through a space between the intermediate jacket and the external jacket.

The invention relates to reminding devices, in particular to a safety reminding device for power circuit repairing. The safety reminding device comprises a base plate, a driven wheel, an electric wheel, pull wires, a straight slide rail, a slider I, a support I, a rack, a support II, a fixing rod I, a gear, a small belt pulley, a flat belt pulley, a fixing rod II, a rotary disc, a large belt pulley, a rubber hammer, a L-shaped connecting rod, a drum, an oblique slide rail, a slider II, a guide rail, a connecting rod, a guide sleeve and a warning sign, wherein the oblique slide rail which inclines towards the left bottom is arranged on the left of the top of the base plate, the driven wheel, the straight slide rail and the electric wheel are sequentially arranged on the base plate from left to right, and the pull wires wind on the driven wheel and the electric wheel. The safety reminding device is novel in structure and capable of achieving timely reminding.

The invention discloses a mechanism in-place operation sound reminding device which comprises a work moving member and a static member arranged thereunder. The lower end of the work moving member is connected with a push rod; and the upper end of the static member is equipped with a rotatable knocking rod, wherein the push rod can move downward vertically and return under the driving of the work moving member, and the push rod drives the knocking rod to rotate when moving downward vertically until the knocking rod knocks the static member and emits a sound. The device can remind the user with the sound when the mechanism operates in place of that an inner running component of a product/ mechanism arrives at some special position when going, so that next operation can be carried out, or that the equipment can start working at the moment; and during returning of the device, resistance in the going trip does not be caused to the running component, and thus an energy-saving effect is achieved.

The invention provides a manual pressing doorbell which comprises a shell. A bottom plate of the shell is provided with a ring, and a swing block is mounted on one side of the ring. The swing block is connected with a first spring, and the first spring drives the swing block to swing. A first oblique face is arranged on the upper portion of the swing block, and a dialing block is mounted on the upper portion of the swing block. The dialing block is connected with one end of a pressing handle, and a second spring is mounted on the pressing handle. A long-strip-shaped first through groove is formed in the upper portion of the dialing block 9, and the highest end of the first oblique face is placed on the lower portion of the dialing block and is overlapped when the swing block and the dialing block are in a perpendicular state. The manual pressing doorbell is directly mounted on an anti-theft door, the outer end of the pressing handle is placed outside the anti-theft door, the ring, the swing block, the dialing block, the springs and the like are placed in the anti-theft door, parts are few, matching of all the parts is close, all the parts can be made of metal materials, the service life is long, maintaining is of no need, and tests show that the damage rate of thousands of pressing is zero. The manual pressing doorbell further has the advantages of being easy to mount, capable of achieving standardized processing and the like.

The invention belongs to the technical field of monitoring equipment, particularly relates to intelligent building fire-fighting monitoring equipment, and aims to solve the problems that existing fire-fighting monitoring equipment is mostly subjected to fixed-angle shooting monitoring in use, is low in practical value and is poor in application efficiency in case of fire disasters. According to the provided scheme, the intelligent building fire-fighting monitoring equipment comprises a shell, a base is fixedly installed at the bottom of the shell, a glass cover is installed at the bottom of the base, a containing groove is formed in the bottom of the base, a bottom plate is rotationally connected to the inner wall of the top of the containing groove, two symmetrically-arranged fixing plates are fixedly installed at the bottom of the bottom plate, a camera is rotationally connected between the two fixing plates, a transverse angle adjusting mechanism is arranged on the bottom plate, and a vertical angle adjusting mechanism is arranged on the bottom plate. According to the invention, the operation is simple, the use is convenient, multi-angle adjustment can be conveniently carried out on the camera, the camera can be conveniently cleaned, people can listen to sound and position in smoke conveniently, and the use by people is facilitated.