194results about How to "Simple switch structure" patented technology

The invention relates to a simple, high-efficiency and reliable cold-warm air-conditioning water heater, which comprises a refrigerant loop, a hot-water condensing heat exchanger, a hot-water storing box and a signal acquisition and circuit control system. A scheme I of the invention is characterized in that: an exhaust opening of a compressor is connected with an air inlet of a three-way valve; a first air outlet of the three-way valve is connected with a refrigerant inlet of the hot-water condensing heat exchanger, and a second air outlet is connected and communicated with a first interfaceof a four-way valve and a refrigerant outlet of the hot-water condensing heat exchanger; a second interface, a third interface and a fourth interface of the four-way valve are respectively connected with the upper ports of an outdoor-wind heat exchanger and an indoor-wind heat exchanger and an air inlet of an air-liquid separator, and a capillary is connected in series between the lower ports of the outdoor-wind heat exchanger and the indoor-wind heat exchanger; an air outlet of the air-liquid separator is connected with an air inlet of the compressor; and an electromagnetic guide-valve low-voltage air-outlet pipe of the three-way valve is communicated with an air-sucking pipe of the compressor, and an electromagnetic guide-valve high-voltage air-inlet pipe of the four-way valve is communicated with an exhaust pipe of the compressor. A scheme II of the invention is characterized in that: the hot-water condensing heat exchanger is added between the exhaust opening of the compressor of a refrigerant-circulating loop of a cold and warm air conditioner and an air inlet of the four-way valve, and the electromagnetic guide-valve high-voltage air-inlet pipe of the four-way valve is communicated with the exhaust pipe of the compressor; and the two technical schemes both have four functions of hot-water making and refrigerating, hot-water making, refrigerating and heating.

An input device including a main device composed of a coordinate input device, an operating surface having input portions displayed thereon, and a switch device having switches connected in parallel, and a control device which selects one of a first mode in which an item signal is generated in accordance with an indication item at an input portion when the input portion is operated, and a second mode in which a position signal corresponding to an operating position on the operating surface is generated independently of the indication item at the input portion. The item signal is generated on the basis of an absolute coordinate signal output from the coordinate input device and a switch signal output from the switch device in the first mode, and the position signal is generated on the basis of a relative coordinate signal output from the coordinate input device in the second mode.

The invention discloses a gas insulation isolating switch device, comprising a shell, an isolating switch and at least a ground switch; the isolating switch comprises a moving end part and a fixed end part; the moving end part comprises a moving end shielding case, a moving contact seat, a moving contact and a moving contact shielding case; the moving end shielding case is provided with a ground switch fixed contact; the fixed end part comprises a fixed end shielding case, a fixed contact seat, a fixed contact and a fixed contact shielding case; the moving contact and the fixed contact are horizontally arranged; the opening direction is coherent with the axes of the shell; the moving end part is connected with an operating transmission mechanism; the device is characterized in that: the operating transmission mechanism is transmission mechanism meshed by gear and rack, or mechanism of lead screw transmission; the rack or lead screw is directly connected with the moving contact conductor or the moving contact. The invention is able to realize the direct connection and three-phase joint, and has flexible arrangement according to different connection modes, and is suitable for GL type isolating switch and GR type isolating switch, and has good commonality and high standardization degree.

A multifunctional pouring cup capable of spraying liquid and mist comprises a cup body, a lower cover and a top cover, wherein the lower cover is divided into a lower part and an upper part, the lower part is in threaded connection with the cup body, a short tube is manufactured in the center of the lower part, the inner wall of the short tube is connected with a pump body of an air pump by a screw hole, a piston rod hole and straw holes are arranged in the lower cover, a piston rod of a piston penetrates through the piston rod hole to be upwards connected with the top cover, two straws are mounted in the straw holes, wherein one straw is connected with a mist-spraying silica gel tube, the other straw is connected with a liquid-spraying silica gel tube, a porous mist spraying port is arranged in the head part of the mist-spraying silica gel tube, a single-hole liquid spraying port is arranged in the head part of the liquid-spraying silica gel tube, a mist spraying switch and a liquid spraying switch are mounted in the upper part of the lower cover, each of the two switches comprises a switch button and a spring, a switch base is arranged in the upper part of the lower cover, a run-through hole is processed in the switch base, a pressing lever is arranged on each switch button, a silica gel tube hole is processed in each pressing lever, each pressing lever is sleeved by one spring and then penetrates through the run-through hole, and meanwhile, the mist-spraying silica gel tube and the liquid-spraying silica gel tube are inserted into the silica gel tube holes in a penetrating manner.

A multi-function switch assembly configured to implement a push switch function is provided. A structure for operating pivot switches of the multi-function switch assembly includes a Printed Circuit Board (PCB) disposed between upper and lower casings coupled together to face each other, push. switches and rotary switches mounted on the PCB, pivot switches mounted on a bottom of the PCB, a pair of sliders disposed to cross each other at a bottom of the lower casing and configured to laterally ground and operate the pivot switches in eight directions while operating in conjunction with a manipulation direction of the actuation lever, and alignment means configured to elastically support at least one of bottoms of the pair of sliders so that restoring force of a neutral state is generated.

The invention discloses a metal button switch. The metal button switch is simple in structure, improves the self-locking performance and waterproof performance, achieves the double-color light emitting function more perfectly, achieves the three-color light emitting function, and improves the installation speed and dismountability. According to the technical scheme, the metal button switch comprises an outer shell, a key and a contact mechanism, wherein the key and the contact mechanism are installed in the outer shell; the key is in linkage connection with the contact mechanism through a pushing device. The metal button switch is characterized in that a base is arranged between the pushing device and the contact mechanism; two weld leg holes used for arrangement of welding legs are formed in two sides of the base; the center of the upper end of the base is provided with a round groove used for placement of an LED lamp; a positioning groove used for placement of a resistor and a square hole opposite to the positioning groove are formed in one side of the upper end of the base.

The present application relates to a switching valve, a switching hydraulic system, and a crane, in which the switching valve having an oil inlet and an oil outlet comprises at least two pairs of valve oil ports, a pair of cartridge valves provided between each pair of valve oil ports, and the oil inlet and the oil outlet are controlled such that the oil inlet and the oil outlet are capable of shifting between communications with the at least two pairs of valve oil ports. The switching valve switches on and off communication between the oil inlet and the oil outlet and the at least two pairs of valve oil ports by controlling opening or closing of the cartridge valves.

A switch device includes an operation plate (12) that has regions which an operator contacts with fingers so as to perform a switching operation, a wiring film (13) that has a plurality of capacitive touch switches (24a,25a,26a,27a) that are provided to correspond to the regions on a back surface of the operation plate (12), supporting portions and a holding portion that rotatably support a holder (29) holding the operation plate (12), such that one end of the operation plate (12) rocks when operation surfaces (24b,25b,26b,27b) are pressed, and a pushbutton switch (30) that comes into contact with and operates in response to the holder (29) rocking when the operation plate (12) is pressed, and outputs pressing signals fixing input of the capacitive touch switches (24a,25a,26a,27a) corresponding to the operation surfaces (24b,25b,26b,27b) that come into contact with the fingers of the operator.

The present invention relates to a power switch, which includes a housing, a key pivotally connected to the housing, a first conductive plate having one end in the housing, a thermally actuated metal plate having one end fixed to the first conductive plate and a free end extending within the housing, a C-shaped spring having two ends engaged with the thermally actuated metal plate, a second conductive plate having one end in the housing, an insulating seat accommodated in the housing, a light-emitting unit located in the key and having two electrodes connected to the insulating seat, and a third conductive plate having one end in the housing. Thus, the light-emitting unit can be easily installed in the housing along with the insulating seat, and the electrodes can directly connect with the second and third conductive plates respectively, so as to make the power switch suitable for automated production.

The invention discloses a shower head with rocker function, which comprises a fixed unit, a switching mechanism and a water outlet unit. The fixed unit comprises a main body and a support cover, wherein the main body and the support cover are assembled together, a water outlet cavity which can be communicated with a water supply source is formed between the main body and the support cover, the center of the support cover is provided with an ascending bulge, and the support cover is provided with a plurality of sets of water outlet holes. The switching mechanism comprises a drive plate, and the drive plate is arranged in the water outlet cavity and can be swingably connected to the bulge; the drive plate is connected with a plurality of sets of sealing columns which are circumferentially arranged at an uniform interval and corresponding to the water outlet holes one by one, and provided with a rocker; the rocker passes through the main body from the inside of the main body to the outside of the main body, so that the rocker can be controlled by the users; and through swinging the rocker, the sealing columns can be controlled to be inserted to seal the water outlet holes or pulled out to communicate the water outlet holes. The water outlet unit is assembled below the fixed unit, and comprises a plurality of sets of water outlet sets correspondingly communicated with the water outlet holes one by one.

A disk apparatus includes a stock section for storing a plurality of stacked disks, a disk transfer mechanism for withdrawing a selected disk out of the stock section, a selection mechanism for causing the selected disk and the disk transfer mechanism to face each other, a rotating section for driving the disk, a common motor, a power transmission mechanism for selectively transmitting the power of the motor to the selection mechanism and to the disk transfer mechanism, and a switching mechanism for switching between a first switching state in which the power of the motor is transmitted to the disk transfer mechanism and a second switching state in which the power of the motor is transmitted to the selection mechanism. The switching mechanism is switched between the states by the moving force of the disk transfer mechanism moving between a transfer-force transmitting position and a transfer-force interrupting position.

The invention discloses a universal electric furnace switch with a human face recognition function. The universal electric furnace switch comprises a knob switch, a human face recognizer and a limiting mechanism. A radial limiting hole is machined in a rotating shaft of the knob switch. The limiting mechanism is installed in an installation hole of a universal electric furnace shell and comprises an electromagnet, a reset spring and a locking pin. The human face recognizer is installed on the outer wall of a universal electric furnace. After the human face recognizer recognizes the identity information of a user, an instruction for connecting a circuit is sent to a control unit, the control unit is connected with the electromagnet and the circuit in the universal electric furnace, the electromagnet starts to be electrified, the locking pin is attracted back into the installation hole under magnetic force, the locking pin compresses the reset spring step by step, after the locking pin completely enters a pin hole of a pin seat, the knob switch loses the limitation from the locking pin, the user can rotate the knob switch to operate the universal electric furnace, and therefore informationized operation and management of the universal electric furnace are achieved.

Aiming at resolve the defects that assemblage and maintenance are not convenient of traditional isolating switch device, the invention provides an isolating switch device that the operation is simple, insulation is strong, performance is more reliable, it includes shell, operating mechanism, a isolating switch and at least one grounding switch, the isolating switch includes act end screening can and spacing movable contact, static end screening can and spacing stationary contact; the grounding switch includes grounding act contact which is on lower side wall of the shell and grounding static contact which is on lower side of the act end screening can or static end screening can. It characterized in that the spacing movable contact and spacing stationary contact are arranged in level linear type, the action direction is uniform with the axial center of shell, the act end screening can and static end screening can are separately fixed to two ends of the shell via insulated basin, the operating mechanism adopts two separated drive and connection mechanism of separating and grounding to realize the non-interference of separating switch and grounding switch.

The present invention provides a method for actuating a transistor (10) having the following steps: (a) a first predetermined positive potential is applied to a first voltage supply node (13) in a latch circuit (11), the voltage supply node (13) being coupled to a control connection on the transistor (10); (b) a reference-ground potential is applied to a second voltage supply node (14) in the latch circuit (11), the second voltage supply node (14) being connected to a source connection on the transistor (10); (c) the latch circuit (11) is set to a predetermined state, which turns the transistor (10) on or off; (d) the potential at the second voltage supply node (14) is lowered; and (e) the potential at the first voltage supply node (13) is lowered if the potential difference between the first and second voltage supply nodes (13, 14) exceeds a predetermined threshold value.

The invention discloses a long stroke keyboard switch, which comprises an upper cover, a base, a fixed terminal, a mobile terminal and a press piece, wherein a guide post is arranged in the middle of the base, the press piece is installed on the guide post sleeved with a reset spring, the fixed terminal and the mobile terminal are arranged at one side of the press piece in a cavity, one end of the fixed terminal and one end of the mobile terminal penetrate through the base so as to be connected with an external circuit, a bulge is extended from the press piece toward the mobile terminal, a plurality of limiting pins for locating the press piece are arranged at the bottom of the press piece, and base holes, which are of the same quantity of the limiting pins and the bulge and are used for allowing the limiting pins and the bulge to pass through the base, are arranged on the base corresponding to the limiting pins and the bulge. Due to the addition of the base holes, when the press piece is pressed own, the limiting pins and the bulge pass through the base from the base holes, so that the downward pressing stroke of the press piece is increased, the pressing hand feeling is improved while the long stroke keyboard switch becomes thinner; and the long stroke keyboard switch has a simple structure and low cost, and improves the production benefit of enterprises.

The invention discloses a switching device with lever ratio, comprising a shell, a rocker arm, a rotating shaft, a contact support, a moving contact bridge and a fixed contact, wherein the rocker arm is rotatably arranged on the rotating shaft; one end of the rocker arm is a driving end and the other end of the rocker arm is a driven end; the contact support is in contact connection with the driven end of the rocker arm driving the contact support to move; the side of the contact support, which is close to the fixed contact, is provided with the moving contact bridge; and the lever ratio of the distance b between the driven end of the rocker arm and the center of the rotating shaft and the distance a between the driving end of the rocker arm and the center of the rotating shaft is more than 1. The switching device has the beneficial effects of strong breaking capability, long service life, simple structure, low cost and convenience in installation.

The invention relates to a pressure measuring instrument for the measurement of direct current voltage, which has two measuring ranges and comprises three stepping disks and a slide wire disk. Three measuring disks are directly connected with a slide wire of a measuring disk by leads without switch switching, therefore, the pressure measuring instrument does not have variation and thermoelectrical potential influence during measurement; and all the disks form measuring disks and a replacing disk by resistors with same resistance values without an auxiliary disk so that the volume of the whole instrument is shortened.

The invention relates a manual/automatic switchable scrubber scrubbing plate elevating mechanism and a scrubber. The mechanism includes a base (1), an automatic control part (2) positioned at the front part of the base (1), and a pedal control part (3) and a switch knob (4), wherein the pedal control part (3) includes a pedal (31) arranged at the rear part of the base (1), a pushing and propping connecting rod (32) with one end connected with the pedal (31) and the other end connected with a scrubbing plate, through the pushing and propping of the pushing and propping connecting rod (32), thescrubbing plate is elevated; the switch knob (4) is arranged at a transmission mechanism (23), and through the switch knob (4), the elevating mechanism can be switched between the manual mode or the automatic mode. Through the structural improvement on the embodiment of the invention, the invention provides the manual/automatic switchable scrubber scrubbing plate elevating mechanism and the scrubber adopting the same, when the automatic mode breaks down, the working mode can be switched into the manual elevating mode conveniently, so that the fact that the scrubbing plate cannot be elevated and damaged caused by failure in the automatic mode is avoided.

The invention discloses a universal electric furnace having alarming and face recognition functions. The universal electric furnace having the alarming and face recognition functions comprises a universal electric furnace body, an annular protective cover, a seal cover, a face recognizer, a control unit, an electromagnet, a locking pin, a reset spring, a temperature sensor and a buzzer. The face recognizer recognizes identity information of a user and then sends a circuit connection instruction to the control unit, the control unit enables the electromagnet and circuits inside the universal electric furnace body to be switched on, the electromagnet is electrified, magnetic force of the electromagnet attracts the locking pin back to a pin hole, and meanwhile the locking pin gradually compresses the reset spring. After the locking pin completely enters the pin hole of a pin seat, the seal cover loses the limitation of the locking pin, the user horizontally pushes the seal cover and then operates the universal electric furnace body, and current using information is recorded by the face recognizer and uploaded to an external upper computer. Therefore, informationized operation management conducted on the universal electric furnace is achieved. In addition, if the inside temperature value of the universal electric furnace exceeds a set value, the buzzer sends out an alarming signal.

The invention relates to a multi-purpose endoscope light source which comprises a case. A circuit board, a switch power supply, a filter, a laser module and an LED (light-emitting diode) module are arranged in the case, the switch power supply, the filter, the laser module and the LED module are electrically connected with corresponding connecting terminals of the circuit board, and a light transmitting bundle socket is formed in the outer wall of the case. The light source is characterized in that an all-in-one optical fiber bundle is arranged in the case, a white LED and a plurality of single-color LEDs are arranged on the LED module, an output end of the laser module and the white LED and a plurality of single-color LEDs of the LED module are connected with a plurality of connectors ofone end of the all-in-one optical fiber bundle, and a synthesis output terminal of the other end of the all-in-one optical fiber bundle is connected with the light transmitting bundle socket. The light source is simple in structure and can provide various different narrow-band light sources according to operation requirements, and spectrum coupling and optical path switching structures are simplified.