198 results about "Mercury switch" patented technology

The invention relates to a full-automatic utility pole centralizer comprising a hoop, a hydraulic mechanism, a length adjuster, a connecting shaft, a right hand thread screw, a left hand thread screw, a base, a mercury switch and an electric hydraulic pump. The hoop is connected with the hydraulic mechanism through the connecting shaft. The hydraulic mechanism and the right hand thread screw are welded together. The right hand thread screw and the left hand thread screw are screwed in two ends of the length adjuster, respectively. A limit stopper is arranged at the end of each of the screws screwed into the length adjuster. The other end of the left hand thread screw is connected with the base through the connecting shaft. The hydraulic mechanism is provided with a relief valve and a hydraulic joint. The electric hydraulic pump is connected with the hydraulic joint through a high-pressure rubber pipe. The mercury switch is parallelly attached to a utility pole and is connected with the electric hydraulic pump through a circuit. The full-automatic utility pole centralizer has the advantages that when tilting, the utility pole can be automatically centralized with no power outage; power supply reliability is ensured, work efficiency is improved, and risks caused by power outage are reduced.

An autonomous device for warning drivers of automobiles of excessive speed of turning around a curve. The device is compact with both the sensing means and alarm audio and/or visual signal producing means. The sensing means comprises two, alternatively activated and differentially calibrated by means of a proposed calibration device, pair of mercury switches, each pair comprising two oppositely inclined mercury switches for monitoring right and left turns of the vehicle, wherein the first pair is adapted for use in conditions of dry road surface by calibration at a predetermined value of inclination and a second pair is adapted for use in conditions of wet road surface by calibration at a different predetermined value of inclination.

A computer workstation having a desktop/work surface defined by a central aperture and a pivoting liquid crystal display (LCD) support panel mounted on pivot shafts in the aperture. In addition, a sliding input device platform is mounted on telescoping roller brackets underneath the front edge of the work surface. Lever arms are rotatably engaged with the pivot shafts and are linked to the roller brackets. The lever arms automatically pivot the LCD support panel to an upright position upon extension of the input device platform, and vice versa, and a hydraulic damper brings the LCD support panel to a safe, gentle stop. Aa mercury switch turns the LCD on and off automatically upon opening or closing. Two or more such LCD support panels and associated hardware can be included in a single desktop/work surface for a computer training and/or conferences.

A self-leveling bed support frame provides an automatically-controlled level sleeping surface in the sleeper cab of a semi-trailer rig. The self-leveling bed support frame is comprised first of a rectangular lower frame with four pneumatic actuators in each corner. A rectangular upper frame is above the lower frame and engages at its corners with the pneumatic actuators. An automatic control system operates the four pneumatic actuators to maintain a level upper frame by utilizing two pair of mercury switches disposed on two independent control axes. Each pair of mercury switches control the positioning of a pair of the pneumatic actuators, disposed at either end of a diagonal across the upper frame. An adjustable seat back assembly is also provided which can elevate one end of a mattress on the upper frame, using a pair of scissor jack mechanisms, which provide fine control when utilized with a pneumatically controlled actuator.

A system for guiding of the visually handicapped includes a continuous electrical conductor, in the nature of a wire or strip, having a substantially uniform conductivity embedded within a walkway to be traversed by the handicapped person. The system also including a proximity for detecting the conductor in which the detector may be in a shoe of the user or a tip of a walking cane. The system further includes a signalling element, in the nature of a vibrator, in electrical communication with the detector such that, through the presence of such vibration, the visually handicapped person is able to determine his proximity to the electrical conductor to determine that he is proceeding in a proper direction within or along the walkway. The signalling element is preferably provided with a switch, for example, a mercury switch, so that the shoe or cane circuit will become energized only upon the occurrence of movement or motion of the shoe or cane within which the proximity detector is located. The approach by a user to a location of interest along the walkway, such as an intersection, bathroom, or Braille telephone, may be indicated through the provision of a pattern of irregularity of the conductivity within the continuous electrical conductor. Different patterns of irregularity may indicate different advisories to the user.

The invention discloses a nanosecond rising edge high-voltage square wave pulse generator, which comprises a direct current high-voltage power supply, a resistor, a pulse forming line, a pulse transmission line, a mercury switch and a control circuit, wherein the direct current high-voltage power supply is sequentially connected with the resistor, the pulse forming line, the mercury switch, the pulse transmission line and a load; and the control circuit controls the turning on and turning off of the mercury switch. By the nanosecond rising edge high-voltage square wave pulse generator, the divider ratio and response time of a voltage divider can be accurately calibrated; not only the rise time of output square waves is ensured, but also the output voltage of the direct current high-voltage power supply can be continuously regulated; the low-voltage control circuit and a high-voltage main circuit are electrically isolated; and the adopted mercury switch is inevitably at a broken position when a control end is broken, so that electrical connection is cut off, and the whole device is safer.

The invention provides an auxiliary light assembly which is disposed on and secured to a predetermined portion of a motorcycle and which is operatively coupled to a source of voltage for illuminating a ground surface forward of the motorcycle being ridden with its front wheel elevated above the ground surface. A switch is operatively coupled to the light assembly for selectively supplying the voltage and terminating voltage supply. According to one embodiment, the present invention contemplates the use of a mercury switch which is mounted within the light assembly.

Devices, apparatus, and methods of using a solar powered, battery operated, light sensitive toilet seat LED (light emitting diode) lid light device that removably clamps to an edge of the outside toilet seat lid. A solar panel is visible on outside of toilet seat is used to recharge a battery in the device. The underside of device contains the secured battery, circuit board, mercury switch and photocell. When the lid and device are in upright position the mercury switch closes. The photocell senses absence of light and the LED light illuminates the toilet bowl and surrounding area.

The invention relates to a powder-type insulated high-speed minisize impact switch. A current glass mercury switch has a large volume. There is a blind spot during working. Consistency and repeatability are not stable. By using the impact switch of the invention, the above problems can be effectively solved. The impact switch comprises: a sealed cavity, mercury and an insulation skeleton. The insulation skeleton is provided with the sealed cavity. A first electrode and a second electrode, which are mutually insulated with each other, are arranged in the skeleton and extend out of the skeleton. Contacts of the first electrode and the second electrode are communicated with the cavity. The cavity is filled with the mercury. A layer of an insulation powder is adsorbed on an inner surface of the cavity and the mercury. In the invention, a structure is compact. The switch is small and unique. Usage is convenient. Working is reliable and stable. The impact switch belongs to the innovation of a microelectronic switch.

The invention discloses a pleasure boat with high safety. The pleasure boat with the high safety comprises a boat body, a rollover prevention device, a driving device and a floating oil recovery device; the driving device comprises an electric driving device and a pedal driving device; the pedal driving device comprises pedals, a first chain wheel, a second chain wheel, a supporting rod and a transmission rod; the electric driving device comprises a control switch box, a support rod, a motor and a submersible propeller; the floating oil recovery device comprises a floating oil recovery cylinder, an oil collecting tank and a suction pump; the rollover prevention device comprises a mercury switch, a circuit controller, an inflating and deflating device and an airbag; a spring buffering mechanism is fixedly arranged at the front end of the bottom of the boat body; and the spring buffering mechanism comprises a moving rod and a cylinder barrel. The pleasure boat with the high safety is energy-saving, environment-friendly, anti-collision, anti-rollover and highly safe, can be driven by both the pedals and electric power and can also clean the floating oil; and the pleasure boat with the high safety has the advantages of high recovery speed, low recovery cost, good water surface floating oil treatment effect and so on.

The invention relates to a float switch formed by assembling nuts, a support rod, a nylon-knitted flexible wire, a spiral electric wire, a heat-shrinkable tubing, a floater, a ball switch (or mercury switch), a shield and an installation seat. The floater floats up and down through the function of liquid floatage so that the ball switch (or the mercury switch) is switched on or switched off, thereby obtaining a liquid level switch having the advantages of wide adaptability, safety and reliability, simple maintenance, smaller size, lower cost, long service life, simpler electronic control line, no influences of ferromagnetic impurities in liquid, the resistance change of the liquid and the transparency of the liquid and no electromagnetic interference from the outside.

A control system of profundal netted case for detecting wind and wave and automatic sinking is composed of a single-chip computer, wind and wave sensor consisting of 8 Hg switches, 4 buoys with water inlet valve and netted case.

The invention discloses an alarming walking stick, which is formed by arranging an alarming system in a common walking stick. The alarming system is formed by sequentially connecting a mercury switch,an alarming device and a power supply, wherein the mercury switch is a mercury switch sold in the market; the alarming device is an alarming device sold in the market; when the walking stick is in avertical state, a contact in the mercury switch is open; however, when the walking stick is inclined or laid down horizontally, the mercury in the mercury switch close the contact to turn on the powersupply to close a circuit and the alarming device gives an alarm for help; and after a person stands up, the walking stick restores the vertical state, the mercury switch is turned off to cut off power supply. The alarming walking stick is suitable for the disabled and the old who need the walking stick for assistance during walking due to foot and leg problems.

The invention provides a hydrological flood monitoring cableway buoy positioning automatic putting method and a hydrological flood monitoring cableway buoy positioning automatic putting device. On the existing hydrological cableway, a storage battery and a buoy storage box are hung, a plurality of buoys are arranged in the buoy storage box in an overlapped way, a buoy outlet is formed under the box body, an electric magnet is arranged on the box wall, a displacement iron core of the electric magnet is connected with a buoy conducting rod, the electric magnet is conducted with a power supply of the storage battery through a mercury switch, a floating ball is arranged under a fish lead, a floating ball guide rod upwards penetrates through a guide hole formed in the belly part of the fish lead to be connected with one end of a mercury switch body, the fish lead falls down, the floating ball contacts with water, and the floating ball guide rod upwards moves, so that mercury in the mercury switch flows to the other end, the electric magnet and the power supply of the storage battery are conducted, the buoy guide rod moves, and one buoy arranged at the bottom of the buoy storage box is guided out of the water surface. When the fish lead is lifted up, the floating ball falls down under the gravity effect, the floating ball guide rod is linked with the mercury switch to cutoff the power, the buoy guide rod returns the original position under the effect of a reset spring, and the next buoy falls down to a position to be released under the gravity effect.

The invention relates to a ship with an automatic side turn-preventing function. The ship is characterized in that more than one air bag box is embedded into an air bag groove on each side; each of the air bag boxes is divided into a bottom box and a box cover, the box cover faces outward and is hermetically buckled with the bottom box, an inflated air bag is hidden in each of the air bag boxes, and the air bag root, together with the bottom box, is located in the bottom of the air bag groove through a fastener by virtue of a pressing plate, so that the air bag prevents the air bag box from being in contact with the outer side; each of the air bags is provided with an air inlet pipe and a one-way valve connected to the air inlet pipe in series, and is connected to a gas generator through the one-way valve; each of the air bags is provided with a pressure reducing valve, the gas generator is electrically connected to a controller, explosive inflation of the air bags on the left and right sides of the ship is controlled by left and right mercury switches, and the mercury switches are electrically connected to the controller. The ship provided by the invention has the characteristics of being high in safety and reliability, fast in inflating speed, simple in structure and free of high pressure gas sources, that is, high pressure gas cylinders.

The invention relates to an inclined well lid alarm system and an alarm method. The inclined well lid alarm system comprises a well lid seat ring, an outer cover for sealing the well lid seat ring is arranged on the upper portion of the well lid seat ring, an inner cover is arranged in the well lid seat ring, the inner cover is provided with a groove for containing a sealed waterproof box, at least two symmetric glass containers are obliquely arranged in the sealed waterproof box, and mercury switches for detecting inclination of the inner cover are arranged in the glass containers. A circuit board is arranged in the sealed waterproof box, and provided with an MCU, a power module, a communication module and a driving module, the power module, the communication module and the driving module are connected with the MCU, and the driving module is used for driving the mercury switches. The inclined well lid alarm system is simple in circuit function, when a well lid is opened, long conductors and short conductors are connected through sliding of mercury in the mercury switches, and therefore a well lid opening alarm is given out.

The invention discloses an intelligent well cover alarm system and method, and an application. A warning rod is arranged somewhere near to a shaft port in a shaft, the warning rod is enabled to be connected with the inner wall of the shaft through a rotation base, the warning rod is hollow inside and is provided with a warning circuit board, and the warning circuit board comprises a power supply module, a mercury switch and an alarm signal radio communication module. When a sealing cover of a well cover is at the shaft port, the warning rod is in contact with the bottom of the well cover and is at a transverse state, and the mercury switch is switched off; when the well cover is off the shaft port, the warning rod rotates around the end connected with the rotation base to show a vertical state, and the mercury switch is switched on; and the alarm signal radio communication module, after being energized, automatically sends alarm signals to a monitoring terminal in a wireless mode through a gateway. According to the invention, an alarm can be given in real time when the well cover is stolen, management personnel can take action timely, the time difference between loss and action is shortened, at the same time, pedestrians and vehicles can also be warned, and safety hidden risks can be reduced to the maximum.

The invention discloses a voice help-seeking and alarming functional crutch. A complete recording and reproducing circuit consisting of a battery, a language recording and reproducing module, a mercury switch, a recording microphone, a master switch, a recording switch, an annular LED (Light-Emitting Diode) lamp and a loudspeaker is combined together with the crutch. Language information is recorded into the language recording and reproducing module in advance, the mercury switch is used for automatically switching on a reproducing trigger circuit in the falling process of an aged or a handicapped patient, language help-seeking information is transmitted, and the annular LED lamp flickers, so that the attention of pedestrians is drawn, and in-time rescue of the aged or handicapped patients is realized.

The invention relates to an anti-theft alarming device capable of moving with an article. The anti-theft alarming device is characterized by comprising a 4.5V direct-current power supply, a moveable sensor, a unidirectional thyristor control circuit, a positive feedback oscillating circuit and a loudspeaker YS, wherein the moveable sensor and the unidirectional thyristor control circuit consist of mercury switches (1), unidirectional thyristors SCR and resistors R1; the positive feedback oscillating circuit consists of a resistor R2, an NPN type transistor VT1, a resistor R3, a PNP type transistor VT2, a capacitor C1, a resistor R4 and a loudspeaker YS. Nearly all the anti-theft devices in the market are fixed for use. The anti-theft alarming device capable of moving with the article, disclosed by the invention, can be fixedly arranged at a proper position of an anti-theft move-preventing device in use, such as a motorcar or a bicycle, a precious article and a cultural relic in a museum. When the article is moved, the alarming device gives sound, so that the aims of threatening uninvited guests and causing the attention of a person on duty are fulfilled.

The invention discloses a lift control device of an electric clothing storage cradle. The device is safe and reliable to use and can not easily damage the motor. The device comprises a bracket, a motor and a controller, wherein a tilting plate is hinged with one side of the bracket; one end of the tilting plate is heavier than the other end thereof; the heavier end is provided with a mercury switch; the lighter end is tied with a lifting rope; a permanent magnet is tied below the lifting rope; and the mercury switch is electrically connected with a cradle ascending control circuit on the controller. Since the motor is only controlled by the switch, heavy current can not occur, the coil can not be damaged by heating, and the motor has longer service life. Meanwhile, the abrasion between a motor reducing mechanism and the lifting rope is greatly reduced.