8 results about "Mercury switch" patented technology

The utility model provides an anti-inclination alarm, which solves the problems that a conventional angle inclination alarm is complex in structure and a switch is not easy to control, and adopts the technical scheme that a wireless signal transmitting module is connected with an angle inclination switch; the angle inclination switch device, the wireless signal transmitting module, the power supply and the power supply switch are connected in series to form an alarm switch circuit, the angle inclination switch device is a mercury switch, the mercury switch is obliquely arranged in a control room which is synchronously steered with a hoisting equipment suspension arm, and a fixed electrode of the mercury switch is arranged at a high-end position where the mercury switch is placed. And the front end of the suspension arm is provided with a groove. The device is simple in structure and suitable for being conveniently installed on engineering equipment for use, reliable and sensitive safety early warning is provided, and the equipment safety is improved.

An emergency escape mechanism is disclosed. A deployable and inflatable slide is located proximate the exit door of a building. When the alarm switch on the alarm box next to the door is set to unlock the door may be opened and a chute or slide falls out to the exterior of the building. A mercury switch or the like is activated as the uninflated slide tilts out which activates an inflation means, preferably a compressed gas cylinder or the like. The slide or chute is anchored to the building by a girt bar anchored in the floor and a plurality of chute support straps. This allows for rapid evacuation of the building. Additionally, the alarm box switch may operate a silent alarm to alert the police of a potentially hazardous situation.

An integrated intelligent management and control platform for a conveyor belongs to the technical field of control and comprises a management and control platform body, a vibration monitoring mechanism, a bolt fastening monitoring mechanism, a capacitance performance monitoring mechanism and an air flow monitoring mechanism. Each set of vibration monitoring mechanism comprises a mercury switch, a shell and a first control circuit, each set of bolt fastening monitoring mechanism comprises a ring sleeve, a pressure resistor and a second control circuit, and each set of capacitance performance monitoring mechanism comprises a ring sleeve A, a pressure resistor A, a thermistor and a third control circuit. The first control circuit, the second control circuit, the third control circuit and an audible and visual alarm of the wind speed detection device are installed in a shell of the management and control platform body. When the circuit board filter capacitor of the management and control platform body, the bolts for fixing the motor and the conveying rack, the air inlet and the air outlet of the shell are abnormal, the vibration of the motor is too large and the like, a worker can be prompted to replace or maintain in time through the audible and visual alarm, and the equipment fault expansion probability is reduced.

This application provides an anti-tipping structure for a beam pumping unit. Its irregularly shaped housing is detachably mounted on the top surface of the beam. A first mercury switch and a second mercury switch are respectively mounted on the inner wall of one side plate of the irregularly shaped housing. The angle between the first mercury switch and the first plane is 173°, and the angle between the second mercury switch and the first plane is 7°. The first plane is parallel to the plane containing the top plate of the irregularly shaped housing. One end of a cable is electrically connected to the first mercury switch and the second mercury switch, respectively. The low-voltage power supply at the output of the power converter is electrically connected to the other end of the cable and a relay. The normally open contacts of the relay, specifically the first and second control output terminals, are electrically connected to the control circuit of the pumping unit's motor for controlling the motor's operation. This device is low-cost, highly practical, and can detect whether the horizontal tilt of the pumping unit's beam exceeds the limit.

The utility model relates to the technical field of equipment lubrication system oil return detection, and discloses a lubrication system oil return detection device based on a mercury switch, which comprises an oil return joint opening fixed at the position of an oil return outlet in an oil tank, and the oil return joint opening is of a hollow right trapezoid structure with an upper opening. An oil return baffle is hinged to the top of the inclined waist of the oil return connecting opening, and a mercury switch is arranged on the outer side wall of the oil return baffle. The device can be directly installed on an oil outlet of an oil return pipeline of an oil tank of a lubricating system of old equipment, the lubricating oil return state of the crushing equipment can be monitored in real time and corresponding alarm information can be given in the operation process of the equipment, the lubricating oil return state of the equipment can be remotely monitored, unmanned automatic control or remote centralized control is achieved, and the service life of the equipment is prolonged. Personnel cost is saved, equipment stable operation efficiency is improved, and maintenance cost is reduced.

The invention relates to a slip form leveling device and a vertical shaft pouring slip form, which can solve the problem that in the prior art, in the construction process of the slip form, the balance rising of the slip form is difficult to accurately control, and the slip form leveling device comprises a mercury switch module, an optical coupler isolation mechanism and a signal generation module which are electrically connected, the optocoupler isolation mechanism is connected between the mercury switch module and the signal generation module, the mercury switch module comprises a horizontal state and an inclined state, and the mercury switch module is configured as follows: when the mercury switch module is in the horizontal state, the optocoupler isolation mechanism isolates the mercury switch module from the signal generation module; the signal generation module is in a non-working state; when the mercury switch module is in an inclined state, the optocoupler isolation mechanism conducts the mercury switch module and the signal generation module, so that the signal generation module is in a working state.

The present application relates to automatic alarm device technical field, especially to a kind of pumping unit abnormal stop alarm device and method.The pumping unit abnormal stop alarm device and method, mercury switch is installed on pumping unit beam and make internal liquid mercury flow direction parallel with pumping unit beam direction, mercury switch is periodically switched on and sends work signal while running with pumping unit beam, work signal is collected by control module and compared with normal work signal frequency to judge pumping unit operating state, and alarm signal is sent by alarm module.The pumping unit abnormal stop alarm device and method proposed in the present application, the operating state of pumping unit is collected by installing mercury switch on pumping unit beam, the wiring work required while monitoring the operating state of pumping unit is much less than infrared emitter in prior art, the working voltage of watermark switch is usually only 5v, eliminate the risk of electric shock, reduce the workload of device in installation process.

The utility model relates to an underground mine roadway signal lamp control device, and belongs to the technical field of mine transportation equipment. According to the technical scheme, a welded pipe (6), a balance ball (7) and a steel plate (8) with holes form balance iron; the U-shaped iron (4) is connected with the perforated steel plate (8) through the positioning pin (9), the welded pipe (6) is rotatably arranged around the positioning pin (9), the U-shaped iron (4) is welded with the connecting rod (3), and the connecting rod (3) is fixed on a ceiling; the mercury switch (5) is installed on the welded pipe (6), the contact frame (1) is fixed on the top of the electric locomotive, and the contact frame (1) is matched with the balance iron. The utility model has the beneficial effects that the balance iron rotates to drive the mercury switch to be switched on and off and control the signal lamp to be turned on or turned off, so that the passing state of the electric locomotive in a one-way road can be indicated, whether the electric locomotive needing to pass through the road section can pass safely or not is indicated, the structure is simple and easy to implement, and collision accidents of the electric locomotive can be effectively avoided.