8 results about "Electric bell" patented technology

The pressure relief device of the liquid carbon dioxide storage tank comprises a storage tank, the upper surface of the storage tank is fixedly connected with a valve body, the bottom of the inner side face of the valve body is connected with a valve element in a sliding mode, and the upper surface of the valve element is fixedly connected with a spring. According to the pressure relief device of the liquid carbon dioxide storage tank, three groups of pressure relief pipes, a connecting rod, a supporting arm, an induction button and an electric bell are arranged, so that the pressure relief speed of the device is increased, the device can realize graded pressure relief, and the safety of the device can be improved; when the storage tank is decompressed, the other end of the supporting arm presses the sensing buttons, so that the electric bell gives out warning sound to remind a worker that the storage tank is decompressed and is careful, the electric bell can be provided with three warning sounds corresponding to the three sets of sensing buttons, the device can give out different warning sounds according to different levels of pressure relief speeds, the effect is better, and use is convenient.

The utility model relates to a kind of coal gas blower speed measurement early warning device in the technical field of equipment monitoring, to solve the problem that speed measurement early warning device is poor in anti-interference, leading to inaccurate measurement, and there is no early warning and the measures of the stop of coal gas blower.The device converts the speed of gear into electrical signal by three speed probes, reduces the signal interference of environment using shielding layer and protection device box, improves the anti-interference of detection equipment, shielding layer is connected with transmitter and safety barrier in protection device through cable, multiple safety barriers are connected with PLC controller, flash alarm and bell, when detecting abnormal speed, flash alarm will emit light and bell will alarm, when PLC controller receives at least two probe over-limit signals and lasts 1-3 seconds, PLC controller will send interlock parking signal, control coal gas blower to stop running, meet the demand of safe and accurate monitoring, reduce economic loss.

The utility model belongs to railway signal system technical field discloses a 6502 electric concentration voice alarm system mainly used to solve the problem that the existing bell fault alarm mode cannot quickly distinguish fault types and has low fault processing efficiency. The utility model prestores a plurality of customized voice alarm data based on different fault types in the voice control module. When the specific alarm relay in the 6502 electric concentration console is excited, the corresponding control relay of the alarm relay can be triggered to be excited synchronously, and then the corresponding control port in the voice control module is connected, so that the corresponding alarm voice broadcast is carried out through the voice power amplifier module and the loudspeaker. Compared with the traditional bell alarm mode, the system does not need technical personnel to check the console indicator light on site, and the voice directly broadcast fault type can effectively improve the fault identification efficiency, and also enable the technical personnel to instantly identify the core problem in the multiple fault concurrent scene, and significantly improve the emergency disposal efficiency.

The utility model discloses an electrical automation equipment fault alarm device, relates to the electrical equipment field, and comprises a heat dissipation rack and a controller, the middle part of the heat dissipation rack is provided with a ventilation slot in a penetrating manner, the ventilation slot is internally provided with an exhaust fan used for heat dissipation, one side of the heat dissipation rack is provided with a vertical rod, and the vertical rod is provided with a through hole. And a positioning structure for adjusting the height position of the vertical rod is arranged on the side wall of the heat dissipation frame. A vertical rod is pulled up to drive an alarm bell to rise to a proper height, then a sound amplification cover is rotated to enable an opening of the sound amplification cover to face a personnel frequently-waiting area, after the internal temperature of the electrical equipment is increased to a heat dissipation preset value, a controller controls an exhaust fan to rotate to dissipate heat and drives hot air in the electrical equipment to be exhausted, and after the internal temperature is increased to an alarm preset value, the controller controls the exhaust fan to rotate to dissipate heat. The controller controls the alarm electric bell to give an alarm ringtone, the ringtone is spread towards a specified direction through the sound amplifying cover to give an alarm, effective heat dissipation can be achieved, directional high-pitch alarm can be achieved, and multifunctional use of the device is achieved.

The utility model discloses a marine alarm bell, and specifically relates to the technical field of marine alarm bells, the marine alarm bell comprises an external impact type electric bell assembly, the bottom end of the external impact type electric bell assembly is provided with a cast iron assembly, the cast iron assembly comprises knocking cast iron, and the center of the front surface of the knocking cast iron is rotatably inserted with a rotating shaft; the marine alarm bell can regularly clean a shell knocking cast iron by controlling the sleeving scraper to rotate, so that a rust layer is prevented from being formed on the outer surface of the knocking cast iron in a humid and salt mist environment on the sea, the situation that the outer surface of the knocking cast iron is corroded is further avoided, and when the knocking hammer strikes the knocking cast iron, the sound made by the knocking hammer is always clear, and the service life of the knocking hammer is prolonged. And meanwhile, when the sleeving scraping plate rotates, the conveying pipe and the atomization spray head can be driven to rotate, the atomization spray head is opened, the atomization spray head can spray an anti-rust agent to the outer surface of the knocking face of the cast iron assembly in an all-around mode when rotating, and knocking cast iron can adapt to the high-humidity and high-salt-mist environment.

The application discloses a dry quenching circulating fan safety state monitoring and early warning device and an early warning method thereof, belongs to the field of dry quenching circulating fans, and is characterized in that a first vertical vibration speed sensor, a first horizontal vibration speed sensor and a first axial vibration speed sensor are arranged at a non-load end of the circulating fan and connected to a controller; a second vertical vibration speed sensor, a second horizontal vibration speed sensor and a second axial vibration speed sensor are arranged at a load end of the circulating fan and connected to the controller; the controller is connected with a flashing alarm, the input end of the flashing alarm is connected with a corresponding alarm loop of the controller, and the output end of the flashing alarm is connected with a bell, a confirmation button, a pilot lamp button and a test button respectively. The application adopts a multi-channel array combination structure to install the flashing alarm to form a light-emitting matrix alarm system, when a certain parameter exceeds a limit, a corresponding loop can send out flashing and audible alarms. Moreover, the application can provide alarms caused by simultaneous exceeding of several process parameters.

The utility model discloses a pendant type electric bell seismograph, which comprises a shell and an electric bell assembly, the top and the bottom of the shell are respectively covered with an upper cover and a lower cover, the top and the bottom of one side of the shell are respectively provided with a fixed support, and the top and the bottom of the interior of the shell are respectively provided with an upper insulating ring and a lower insulating ring. The two sides of the top of the upper insulating ring are both provided with first wiring piles, the middle position of the top of the lower insulating ring is provided with a conductor embedded part, one side of the top of the lower insulating ring is provided with a second wiring pile, and the top of the second wiring pile and the tops of the first wiring piles are jointly connected with an outgoing wire. The pendant type electric bell seismograph is small and exquisite in overall structure, suitable for household use and convenient to install, can be installed on a wall body and can also be buried underground for use, an integrated dual-purpose installation method is achieved, and convenience and flexibility of installation and use of the pendant type electric bell seismograph are improved.

The utility model discloses an electronic fence acousto-optic voice alarm system in the field of safety protection. The electronic fence acousto-optic voice alarm system comprises an outer-layer alarm system and an inner-layer alarm system. And the outer layer alarm system comprises a plurality of groups of first infrared correlation alarms and second infrared correlation alarms which are configured in pairs, and infrared beams emitted by the first infrared correlation alarms and the second infrared correlation alarms are mutually correlated to form an electronic barrier. The electronic barriers are connected end to end to define an operation area, and an inner-layer alarm system is arranged in the center of the operation area. The inner layer alarm system comprises a control cabinet, an acousto-optic voice prompter and an electric bell. The acousto-optic voice prompter and the electric bell are both electrically connected with the control cabinet. According to the utility model, the outer-layer alarm system and the inner-layer alarm system are arranged, so that the alarm effect is improved, and the alarm information transmission efficiency is high.