17 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.

The invention provides a lifting hook running state detection system, and relates to the technical field of lifting hook posture monitoring, and the lifting hook running state detection system comprises a lifting hook posture monitoring device, an Internet of Things cloud platform and a cab monitoring terminal; the lifting hook posture monitoring equipment is used for being installed on a lifting hook to obtain lifting hook posture information, the lifting hook posture monitoring equipment comprises an annular mercury switch, when the lifting hook inclines, mercury in the annular mercury switch rolls to the top, the annular mercury switch is switched on, and an alarm signal is output, and when the posture of the lifting hook is normal, the annular mercury switch is switched off. And mercury in the annular mercury switch is located at the bottom and outputs a disconnection signal. According to the lifting hook posture monitoring device installed on the lifting hook, the posture of the lifting hook is obtained by means of the annular mercury switch, the abnormal conditions such as rotation, inclination and collision of the lifting hook in the operation process can be accurately sensed, and compared with traditional naked eye observation and manual judgment, the monitoring accuracy and timeliness are greatly 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.

The utility model belongs to the technical field of seeking devices, particularly relates to an underwater seeking device, and aims to solve the problems that manual fishing is slow in speed and poor in safety, and a large amount of time is spent on seeking and fishing instruments, and the underwater seeking device comprises a stainless steel cylinder, a hinge seat, a hinge block and a seeking device top cover. When the instrument leaves the working platform, is impacted by water, and the gravity center of the instrument is changed, unbalanced and the like, the instrument turns on one side, turns over, inclines and the like, at the moment, the top cover of the searching device is opened, the spring stretches to eject the floating bottle, after the floating bottle is taken out of a bin, the floating bottle rotates by 180 degrees due to the traction limitation of a fluorocarbon wire, the mercury switch is switched on, and the instrument is started. The light-emitting tube is powered by the 3V lithium battery, so that the light-emitting tube flickers, search and rescue personnel can find the instrument conveniently, the salvage accuracy is high, the efficiency is high, the instrument can be found and salvaged in complex environments (such as deep sea and underground depth), and time and labor are saved.

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.

The invention relates to a limiting sensor device and a greenhouse cotton quilt spreading system, the limiting sensor device comprises a shell, a circuit board and a mercury switch; the shell is a hollow cuboid; the circuit board is arranged in the shell and located at the bottom of the shell; the mercury switch is arranged in the shell, the mercury switch is of a hollow columnar structure, and the mercury switch is longitudinally arranged on the circuit board; the mercury switch is internally provided with a mercury bead, the mercury bead can flow in the column length direction of the mercury switch, the bottom end of the mercury switch is suitable for being electrically connected with the circuit board through a wire, and the top end of the mercury switch extends upwards; the number of the mercury switches is more than two, any two adjacent mercury switches are connected in series, and the plurality of mercury switches are suitable for transmitting electric signals to the outside. The limiting sensor device has high sensitivity, and the on-off control of the switches can be realized under the condition that the mercury switches are inclined at a small angle, so that the rolling and spreading state of the current greenhouse quilt can be obtained more timely.

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 fire-fighting equipment detection, in particular to a simulation tester for a smoke detector and a temperature detector. A control switch and a change-over switch are arranged on the supporting rod, an air blowing assembly is installed above the supporting rod, an oil storage shell is arranged above the air blowing assembly, a ventilation pipeline is vertically arranged in the oil storage shell, a gyroscope device is movably arranged in the ventilation pipeline, and the gyroscope device comprises a mercury switch. The mercury switch is electrically connected to the change-over switch through a power connecting wire, a tobacco tar storage chamber used for storing tobacco tar is arranged in the tar storage shell, a first heating mechanism is arranged at the bottom of the tar storage shell, a ventilation cover is arranged above the tar storage shell, and a second heating mechanism is arranged on one side of the ventilation cover. Compared with a common tester, the device has the advantages that the working target is increased by more than three times, the tobacco tar loss is reduced by more than two times, the fan motor is fully cooled, the probability of burnout caused by heating is greatly reduced, the test time is shortened by more than half, and the test efficiency is greatly improved.

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 present invention belongs to the field of helicopter design, and particularly relates to a helicopter attitude auxiliary warning device and method based on a mercury switch. At present, on helicopters, the main sources of attitude signal acquisition are mechanical gyroscope groups, fiber optic gyroscope groups, laser gyroscope groups, etc., and there is no warning device for attitude overrun. In the present invention, a horizontal mounting plate is provided on the base, and a first mercury switch and a second mercury switch are mounted on the top of the mounting plate in a cross-shaped layout. The number of the first mercury switches is four, which are axially symmetrically distributed at the outer cross positions and have an outward inclination angle of 20-30°; the number of the second mercury switches is four, which are axially symmetrically distributed at the inner cross positions and have an outward inclination angle of 40-50°; the longitudinal first mercury switches and the second mercury switches are in the same direction as the heading; the first mercury switches and the second mercury switches are connected to a signal lamp and a buzzer through wires. It has a small volume, low cost, is easy to install, and the influence on the aircraft structure and electrical performance can be ignored.

The utility model provides a protective device for preventing the wire rope of the material car winch from breaking and jumping, including: a proximity switch, an armature, a winch drum, and a mercury switch. The proximity switch is arranged on the two side walls of the material car winch wire rope guide rope window, and a set of devices with the proximity switch are installed on both sides of the wall, a set of guide rails are installed on the sensor side of the proximity switch, and the armature is installed at the lower end of the guide rail. The mercury switch is arranged at 30mm parallel to the horizontal plane of the normal thickness of the wire rope on the winch drum. The utility model adopts a set of mercury contacts arranged in parallel on the winch drum and a set of wire rope broken double protection devices installed at the wire rope guide rope window, which solves the hidden danger of the material car sliding down when the wire rope breaks and the wire rope jumps and rolls randomly in the winch system of the material car in the lime roasting kiln, effectively ensures the safety of the material car during the feeding process, and provides technical guarantee for the stable and high production of the lime roasting kiln.

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.

The utility model relates to the technical field of loading and unloading vehicles, and discloses a structural arrangement of a skid-mounted platform for automatically detecting the homing of a movable ladder, which comprises the skid-mounted platform and the movable ladder, the skid-mounted platform is connected with a fixed frame, the fixed frame is vertically mounted on the skid-mounted platform, the fixed frame is hinged with the movable ladder, and the movable ladder is vertically mounted on the fixed frame. A mercury switch for automatically detecting whether the movable ladder returns or not is arranged in the movable ladder, and the mercury switch is connected with the electrical interlocking control system; the mercury switch can supply power at low voltage or micro current, and the folding state of the movable ladder can be detected through the on-off of the mercury switch, so that the mercury switch can be connected to an electrical interlocking control system on the skid-mounted platform, the state of the movable ladder also participates in the control of safety interlocking, manual participation is not needed, and the safety of the skid-mounted platform is improved. The field operation is more standardized and intelligent, and the problem that automatic interlocking safety control is not facilitated due to the fact that the movable ladder homing involves manual detection is solved.

The utility model discloses a coal overflow prevention device, and relates to the technical field of coal mining, in particular to a coal overflow prevention device which comprises a coal falling barrel body, a connecting opening for a material conveying mechanism to convey materials is formed in the outer side of the top end of the coal falling barrel body, and a discharging cavity is vertically formed in the coal falling barrel body in a penetrating mode. A plurality of first-stage blockage warning devices are arranged on the inner wall of the bottom end of the discharging cavity, each first-stage blockage warning device comprises a slope driving block, a transmission column and a first-stage early warning column, one side of each slope driving block is movably connected with the corresponding transmission column, and one end of each transmission column is connected with the corresponding first-stage early warning column through a shaft pin; the first-level early warning column is connected with the coal falling barrel body through a shaft pin. According to the coal overflow prevention device, when blockage occurs in the discharging cavity and a mercury switch in the first-stage blockage warning device inclines, preliminary warning is conducted at the moment, and when coal in the discharging cavity overflows to the transfer cavity, a second-stage blockage warning device gives out warning at the moment.