40results about How to "High trigger sensitivity" patented technology

The invention discloses a composite fire extinguishing patch and a preparation method thereof. The composite fire extinguishing patch is prepared from the following components in parts by mass: 60-76parts of oxidizing agent, 5-8 parts of reducing agent, 30-38 parts of microcapsule fire extinguishing agent and 50-58 parts of adhesive. The method comprises the following steps: (S1) mixing the oxidizing agent, the reducing agent and the microcapsule fire extinguishing agent in a certain mass ratio; (S2) adding the adhesive into the mixture obtained in (S1) and mixing to obtain a thick aerosol-microcapsule pre-hot pressing system; (S3) performing hot pressing and curing moulding on the aerosol-microcapsule pre-hot pressing system to obtain the composite fire extinguishing patch. The compositefire extinguishing patch disclosed by the embodiment of the invention is prepared by combining the oxidizing agent, the reducing agent, the microcapsule fire extinguishing agent and the adhesive, thetrigger temperature of the composite fire extinguishing patch is reduced, the trigger sensitivity of the composite fire extinguishing material is increased, and the effects of high trigger sensitivity and high fire extinguishing speed of the composite fire extinguishing material are realized; meanwhile, due to the limited space in a socket, the use in the socket can be facilitated by adopting a form of patch.

The invention relates to a key and a keyboard thereof. The key comprises a base plate, a key cap, a support device and a spring-back device, wherein the base plate is equipped with a trigger elastic arm and a trigger switch; the support device comprises a first support component and a second support component; the first support component is pivoted with the key cap and is in sliding connection with the base plate; the second support component is pivoted with the base plate and is in sliding connection with the key cap and is pivoted with the first support component in a crossing form; one of the first support component and the second support component is in contact with the elastic arm; the spring-back device is arranged between the key cap and the base plate and is used for driving the key cap to return; when the key cap is pressed by an external force, one of the first support component and the second support component relatively outward slides so as to drive the elastic arm to trigger the trigger switch; when the external force is released, the key cap is driven by the spring-back device to move back to the un-pressed position; one of the first support component and the second support component relatively inward slides so as to drive the elastic arm to separate from the trigger switch. The key provided by the invention can solve the problems of pressing hand feel of the key and the service life of the elastic component in the prior art.

The invention discloses a base mechanical trigger fuze of a rifle gun grenade. A booster tube shell, booster explosive, a reinforcing cap, a gasket, a ball cover, an isolation ball, a needling detonator, a split ring, a ball seat, a firing pin, a ballistic spring, a firing pin sleeve, a self-destruction spring, an inertia body, a striking ball and a centrifugal ball are arranged in a fuze body, wherein the booster tube shell, the booster explosive, the reinforcing cap, the gasket, the ball cover, the isolation ball, the needling detonator, the split ring, the ball seat, the firing pin, the ballistic spring, the firing pin sleeve, the self-destruction spring, the inertia body and the striking ball are coaxially arranged from top to bottom, and the centrifugal ball is eccentrically arranged. The isolation ball serves as an explosion-proof piece and forms a ball rotor together with the needling detonator. At ordinary times, the ball rotor is locked at an explosion-proof position by the firing pin and the split ring, so that redundant insurance is realized. The firing pin and the split ring relieve the safety of the ball rotor by means of recoil and rotation environments during firing. The ball rotor also realizes a deferred safety release distance which is more than 20m. The fuze has the functions of floor blasting, large-angle ignition and centrifugal self-destruction, and when the fuze is applied to an antiaircraft gun grenade with the caliber of 35 mm, reliable triggering can be achieved when an aluminum alloy target plate with the thickness of 2 mm is vertically hit. Related requirements of the fuse safety design criterion GJB373B-2019 are met.

The invention discloses an elevator speed governor which comprises a rope sheave part, a machine frame and a ratchet wheel fixedly connected with the machine frame. The rope sheave part comprises a rope sheave, a centrifugal rod and a main rod. The middle of the main rod is fixedly installed in the center of the rope sheave, the rope sheave is installed on the machine frame through a bearing, and the rope sheave and the ratchet wheel are concentric; the two ends of the main rod are both provided with a centrifugal rod in a hinged mode, the portions, on the two sides of the center of the rope sheave, of the main rod are both provided with a self-locking hydraulic rod, the other end of each self-locking hydraulic rod is connected with the middle of the centrifugal rod, and a ratchet is fixedly connected with the end, away from the main rod, of the centrifugal rod and corresponds to the ratchet wheel.

A 1.55 μm single-photon coherent laser radar system device relates to the application field of laser technology. For the existing lidar, the detection method needs to improve the detection sensitivity, improve the detection distance capability of the seeker, improve the ability to obtain multi-dimensional information of the target, and improve the anti-jamming and target recognition capabilities. The present invention applies GM-APD focal plane detection to laser pulse coherent technology, adopts a Gm-APD heterodyne coherent scheme, and selects short-wave infrared wavelengths. This detection scheme has higher imaging detection sensitivity than coherent detection systems, and can simultaneously acquire The three-dimensional distance value of the target, the plane profile intensity value and the Doppler target velocity value can obtain more accurate target information differences under the three-dimensional angle of space, provide reliable three-dimensional space data for target recognition, tracking, etc., and have strong anti-interference in heterodyne detection On the basis of the ability, the detection sensitivity is improved to the single photon level, which is suitable for the field of weak light detection of long-range non-cooperative targets.

The invention discloses an elevator speed governor which comprises a rope sheave part, a machine frame and a ratchet wheel fixedly connected with the machine frame. The rope sheave part comprises a rope sheave, a centrifugal rod and a main rod. The middle of the main rod is fixedly installed in the center of the rope sheave, the rope sheave is installed on the machine frame through a bearing, and the rope sheave and the ratchet wheel are concentric; the two ends of the main rod are both provided with a centrifugal rod in a hinged mode, the portions, on the two sides of the center of the rope sheave, of the main rod are both provided with a self-locking hydraulic rod, the other end of each self-locking hydraulic rod is connected with the middle of the centrifugal rod, and a ratchet is fixedly connected with the end, away from the main rod, of the centrifugal rod and corresponds to the ratchet wheel.

The invention provides a novel protection design of a POS safety detecting switch. The POS safety detecting switch POS machine shell demounting-preventing part, a demounting-preventing conductor, a demounting monitoring switch and the demounting-preventing detecting bonding pad of a POS machine mainboard, wherein the demounting monitoring switch is located on the demounting-preventing detecting bonding pad; the demounting-preventing conductor comprises a conductive part and a sheet-shaped conductive elastic part, one end face of the sheet-shaped elastic part is a power connection face, the other end face of the sheet-shaped elastic part is a pressure-bearing face, and the conductive part is fixed on the power connection face of the elastic part through an insulating structure; when the demounting-preventing conductor is mounted on the demounting-preventing detecting bonding pad, the pressure-bearing face of the elastic part contacts with the POS machine shell demounting-preventing part, the elastic part deforms under the pressure of the POS machine shell demounting-preventing part to allow the conductive part on the elastic part to contact with the demounting monitoring switch so as to allow the demounting monitoring switch to be in a not-triggered state; when the pressure-bearing face of the elastic part does not bear pressure, the elastic part recovers to allow the conductive part to be separated from the demounting monitoring switch so as to trigger the demounting monitoring switch. By the novel protection design, the demounting monitoring function of a POS machine can be intensified, and illegal demounting can be prevented.

The invention provides household door and window glass with an anti-theft function, and relates to the technical field of anti-theft, the household door and window glass comprises a top piece, the top piece is of an H-shaped plate-shaped structure, the two sides of the rear portion of the top piece are of arc-shaped structures, the top piece is embedded into an embedding groove and a connecting groove, a connecting rod is arranged behind the top piece, and the connecting rod is connected with the top piece. Clamping grooves of wedge-shaped structures are formed in the inner sides of the connecting rods, and the connecting rods are inserted into the guide holes and the circular holes of the auxiliary rods. When knocked in use, a main body vibrates, a round rod pushes a triggering piece made of rubber, the triggering piece is pushed to be bent, a clamping plate is separated from the interior of a wedge-shaped groove of a connecting rod, a spring on the outer side of a stress rod is stressed and stretches, a connecting plate is stressed, a jacking piece is pushed through the connecting rod, and the jacking piece makes contact with a thief; according to the anti-theft door and window glass, the problem that the door and window glass cannot automatically trigger a pushing structure when encountering large vibration, and the thief cannot be pushed away is solved.

The upward travel protector for lift includes a clamping mechanism, a triggering mechanism and a resetting mechanism, and is held inside one box hinged to the pedestal. The power spring drives one end of the cam body to generate rotation moment, and cam surface presses the braking board to realize braking; the motion of the eccentric wheel and the rod generates reverse rotation torque to make the protector release; and the triggering force is reduced with the lever and the control board in special structure. The present invention can brake lift in case of accident overspeed during upward traveling. The present invention operates mechanically and has safe and reliable braking, greatly reduced triggering force, timely and accurate triggering, and compact structure. The present invention is also suitable for the braking of other system with steel cable.

The invention discloses an automatic tension adjusting system for an elevator wire rope. The system comprises a first cross beam (1), wherein first sliding chutes (2) are formed in the first cross beam (1), first high-strength springs (3) are arranged in the first sliding chutes (2), a first moving beam (4) is fixed on the first high-strength springs (3), and a lower pulley block (6) consisting of multiple lower pulleys (5) is arranged on the first moving beam (4); a pulley upper beam (7) is arranged above the first cross beam (1), an upper pulley block (9) consisting of multiple upper pulleys (8) is arranged on the pulley upper beam (7), and the upper pulley block (9) and the lower pulley block (6) are wound with the elevator wire rope (10). The automatic tension adjusting system for the elevator wire rope has the characteristics of high trigger sensitivity, quick response and rapid tension compensation, and further, the system can supply higher lifting power with smaller travel change so as to effectively tension the wire rope.

An automatic clip opening and closing system comprises a clip material frame, a carrier plate arranged in the clip material frame, a ratchet mechanism arranged at the bottom of the clip material frame, a lock rod mechanism arranged on the side wall of the clip material frame and matched with the ratchet mechanism, and a trigger mechanism matched with the ratchet mechanism. The trigger mechanism can trigger the ratchet mechanism to do telescopic motion in the first direction, then the lock rod mechanism is controlled to move in the second direction different from the first direction, and therefore the carrier plate is locked or unlocked. According to the provided automatic clip opening and closing system, an automatic control system is adopted, automatic opening and closing of the clip material frame can be achieved, and the situation that due to manual operation errors, the carrier plate slides out and falls off, or the clip material frame tilts and turns over materials, and products are damaged or lost is avoided.

The invention relates to a key and a keyboard thereof. The key comprises a base plate, a key cap, a supporting unit and a spring-back unit. The base plate includes a triggering elastic arm and a triggering switch. The support unit comprises a first support piece and a second support piece, the first support piece is pivoted to the key cap and connected to the base plate in a slidable manner, the second support piece is pivoted to the base plate, connected to the key cap in the slidable manner, and pivoted to the first support piece in an intersected manner, and one of the first and second support pieces abuts against the triggering elastic arm. The spring-back device is arranged between the key cap and the base plate to drive the key cap to return to an original position. When the key cap is pressed by an outside force, one of the first and second support pieces slides outwardly relatively so that the triggering elastic arm triggers the triggering switch. When the outside force is released, the spring-back device drives the key cap to move back to a not-pressed position, one of the first and second support pieces slides inwardly relatively so that the triggering elastic arm is separated from the triggering switch. According to the invention, the sensitivity and pressing feeling of the key are improved, circuit damage is avoided and the service life is prolonged.

The invention discloses electronic equipment. The electronic equipment comprises a housing, a lever and an induction key, wherein the housing is provided with an inner cavity; and the lever and the induction key are arranged in the inner cavity. The housing comprises a pressing area. A first protrusion is arranged on the surface of the inner side of the pressing area, the first end of the lever isconnected with the housing, the induction key is in sliding contact with the second end of the lever, the first protrusion is in sliding contact with the lever, and the contact position of the firstprotrusion and the lever is located between the first end and the second end; and under the condition that the pressing area is subjected to external force, the lever can rotate by taking the first end as the center along with the movement of the first protrusion, and the second end of the lever triggers the induction key. According to the scheme, the problem of relatively low triggering sensitivity of the induction key can be solved, so that the reliability of the electronic equipment is improved.

The invention discloses an elevator overspeed governor. The elevator overspeed governor is characterized in that the governor comprises a rope sheave part, a rack and ratchet wheels which are fixedly connected with the rack; the rope sheave part comprises a rope sheave, a main rod arranged at the center of the rope sheave, centrifugal rods and self-locking hydraulic rods; spline shafts are fixedly welded to the two ends of the center of the rope sheave; the rope sheave is installed on the rack through a bearing, and the rope sheave and the ratchet wheels are concentric; spline grooves corresponding to the spline shafts are formed in a center hole of the main rod; the centrifugal rods are hinged to the two ends of the main rod correspondingly, the positions, located at the two sides of the center of the rope sheave, of the main rod are connected with the self-locking hydraulic rods separately, and the other end of each self-locking hydraulic rod is connected with the middle part of the corresponding centrifugal rod; the main rod is provided with a hydraulic controller, and the hydraulic controller is connected with hydraulic cylinders of the self-locking hydraulic rods; the input end of the hydraulic controller is connected with a peripheral control button in a wireless mode; and the ends, corresponding to the ratchet wheels, of the centrifugal rods are fixedly connected with ratchets.

The invention discloses an automatic fishing device and an automatic fishing rod with the same. A take-up pulley of the automatic fishing device is assembled with an automatic take-up mechanism, the take-up pulley is arranged on an automatic machine seat, the upper automatic machine seat is provided with a directional clip, and the front automatic machine seat is sequentially provided with a trigger mechanism, an alignment mechanism and an automatic rod I; the automatic rod I and the directional clip are rotationally arranged on the automatic machine seat; one end of the automatic rod I is matched with the tooth end of a large ratchet wheel in the automatic take-up mechanism, while the other end is matched with the trigger mechanism; and one end of the directional clip is matched with the tooth end of a small ratchet wheel. The upper end of the automatic machine seat in the automatic fishing device of the automatic fishing rod is provided with a diverter which is connected with a rod handle, while the lower end is provided with a positioning rod. The automatic fishing device has the advantages of simple operation, safety, reliability, high trigger sensitivity, prevention of direction limit of a line taken away by a fish and high fishing rate; and the automatic fishing rod provided with the automatic fishing device has the advantage of preventing winding.

The invention relates to a safe and reliable flexible CIGS solar module high-voltage resistance test equipment, and solves the problem that the existing flexible CIGS solar module high-voltage resistance test equipment has potential safety hazards of hand clamping and hand pressing. The equipment comprises a rack, and a test platform is arranged on the rack. The equipment is characterized in thata liftable pressing plate is arranged above the test platform, an anti-pinch insulating strip is embedded in the periphery of the bottom surface of the pressing plate, the anti-pinch insulating stripis provided with a cavity extending in the direction consistent with that of the rubber strip body, an upper conductive metal sheet extending in the direction of the cavity is attached to the upper surface of the cavity, a lower conductive metal sheet parallel to the upper conductive metal sheet is attached to the lower surface of the cavity, and the upper conductive metal sheet and the lower conductive metal sheet serve as two contacts of the emergency stop switch. The anti-pinch insulating strips which are extruded to trigger emergency stop are arranged on the periphery of the pressing plate, emergency stop can be achieved when the hand stretches into the position below the pressing plate in the starting state of the pressing plate, and operation safety is guaranteed.

The invention discloses a high-voltage switch, provides a high-voltage switch which is simple in structure, high in reliability and long in service life, and solves technical problems existing in the prior art that the high-voltage switch is poor in sensitivity, an elastic diaphragm and a micro switch contact are easy to wear, the service life is short and the like. The high-voltage switch comprises a lower cover body connected to a fluid pipeline in parallel and an upper cover body covering the lower cover body, wherein the upper cover body and the lower cover body form a valve element accommodating cavity in an enclosing manner together, the valve element accommodating cavity is internally provided with a micro switch connected with external electrical equipment and a valve element assembly connected with the fluid pipelines, the valve element assembly comprises an elastic diaphragm covering an interface of the lower cover body in a sealing manner, a triggering movable block is clamped between a contact of a micro switch and the elastic diaphragm, one end of the triggering movable block is slidably clamped at the inner wall surface of the valve element accommodating cavity, the upper part of the other end of the triggering movable block is abutted against the inner wall surface of the upper cover body through a compression spring, and the triggering movable block is contacted with the contact and triggers the micro switch under driving of the elastic diaphragm.

The invention discloses a multi-position wall switch, relates to the technical field of switches and is intended to solve the problem that a multi-position wall switch of the prior art has poor key sensitivity and is easily triggered by mistake. The multi-position wall switch of the invention comprises a fixing frame provided with a fixing port, a PCB (printed circuit board) is fixed in the fixing port, a front panel covers the fixing frame, the front panel is larger than the fixing port in area, the multi-position wall switch also comprises a plurality of switch keys, each switch key is correspondingly provided with a backlight module including a backlight panel fixed to the front panel, the arrangement range of the backlight panels on the front panel is wider than the projection range of the fixing port on the front panel. The multi-position wall switch is intended to provide improved key sensitivity and prevent mistaken trigger.