35results about How to "With double protection function" patented technology

The invention discloses an intelligent anti-theft lock, a controlling method, a system and a security door. The intelligent lock comprises a lock body arranged on a door leaf and a lock tongue limiting device arranged on door frame. The lock tongue limiting device comprises a controller, a power module, an identity information input module, a bolt and a driving mechanism for driving bolt flexing. The controller is electrically connected with the power module, the identity information input module, the bolt and the driving mechanism respectively. A recess is installed on the front end of the lock tongue of the lock body. When the lock body is locked, the extended bolt is inserted into the recess of the front end of the lock tongue; the retracted bolt is extracted from the recess of the front end of the lock tongue. Unlocked by the means of machine and electronic control,the system has double security functions and improves security greatly.

The invention provides an electric lifting device applicable for industries such as cosmetology, medical treatment, and the like, and belongs to the technical field of electromechanical integration. The invention solves the problems that a lifting sleeve of the prior electric lifting chair has larger friction resistance and bigger noise in the lifting process. The electric lifting device comprises a body with a plug jack and a reducing motor, wherein the plug jack is provided with a screw mandrel and a push rod inside; the push rod is sleeved on the screw mandrel and in threaded connection with the screw mandrel; the inner end of the screw mandrel is connected with the reducing motor; the outer wall of the push rod and the inner wall of the plug jack form a first chamber; the inner wall of the push rod and the screw mandrel form a second chamber; lubricant oil is filled in the first chamber and the second chamber; and the push rod is provided with an oil communicating hole for communicating the first chamber and the second chamber, and a positioning mechanism for preventing the push rod rotating axially. The screw mandrel and the push rod of the electric lifting device are all soaked in the lubricant oil, and the electric lifting device adopts oil immersed lubrication so as to reduce wear of materials, reduce the noise and prolong the service life.

The invention provides a dual-waterproof connecting device which comprises a containing cavity which can contain a female head, and a hollow middle sleeve which can contain a male head, wherein the outer wall of the containing cavity is provided with external threads, a buckle is arranged at the front end of the external threads, a panel fastening nut which is matched with the external threads on the outer wall of the containing cavity is sleeved on the outer wall of the middle sleeve, the front end of the middle sleeve can be sleeved outside the containing cavity, a clamping position which can be clamped with the buckle is arranged on the inner wall of the front end of the middle sleeve, an annular fastening rubber ring which can seal a wire harness section of the male head is arranged inside the rear end of the middle sleeve, and a fastening nut is further arranged at the rear end of the middle sleeve. The dual-waterproof connecting device suits to be used outdoors, is reliable in connection and long in service life, and can protect a connecting terminal and an equipment cabinet at the same time.

The invention relates to a motor-driven operating mechanism, in particular to a motor-driven operating mechanism with a thermal protector. The technical scheme provided by the invention is as follows: the motor-driven operating mechanism comprises a motor installed in an installation shell, wherein the motor is provided with a stator and a rotor; the stator is provided with a stator coil; a speed reducer and a linkage are arranged in the installation shell; the speed reducer is provided with an output gear which is connected with a circuit breaker spindle; a cam is arranged on the circuit breaker spindle and is connected with the linkage; the output gear of the speed reducer is meshed with a rotor gear of the rotor; a spring is arranged in the installation shell; and the thermal protector is arranged on the stator coil and is connected with the stator coil circuit in series. The invention can effectively prevent overcurrent of the motor-driven operating mechanism caused by turn-to-turn short circuit, overload, long idling, locked rotor, etc.

Disclosed is an assembled machining shed for building construction. The machining shed comprises m groups of assembled T-shaped supporting body steel structures, n same specifications of trusses a and a shed cover, wherein m is not less than 2 and not more than 10 and n is not more than 5; every group of assembled T-shaped supporting body steel structure comprises a vertical supporting column, a beam and two inclined pull rods, wherein the beam is formed by two trusses and the two inclined pull rods are connected with the vertical supporting column and the beam to form a T-shaped supporting body; vertical trusses, edge sealing trusses and horizontal across trusses are connected between the m groups of assembled T-shaped supporting body steel structures through connecting parts and bolts to form an integral structural frame, wherein the vertical trusses and the edge sealing trusses are formed by the trusses a and the horizontal across trusses are connected with the vertical trusses and the edge sealing trusses; an angle steel auxiliary keel and the shed cover are arranged on the structural frame; the vertical supporting columns of the m groups of assembled T-shaped supporting body steel structures are fixed on the concrete foundation through embedded foundation bolts; 2 m or less 10 or less, 5 n or less. According to the assembled machining shed for the building construction, the structure is safe, stable and reliable, the parts are assembled through the bolts, and accordingly the component machining and the integral detachment, installation and conveying are convenient.

The invention discloses an antitheft device based on electronic information. The antitheft device comprises a cabinet body and a cabinet door, wherein the cabinet door is provided with a handle, a key, a display screen and a camera, a locking structure is installed in an antitheft device body, the locking structure comprises an air cylinder and a piston rod, a through hole is formed in the top of the cabinet door, and a control panel, a fingerprint identification module, an image identification module, an alarming apparatus and an infrared sensor are arranged inside the anti-theft device body. According to the antitheft device, the human body information is sensed by the infrared sensor and then is transmitted to the control panel, the control panel controls the fingerprint identification module and the image identification module to identify the human body, if the information conforms to the personal information, the cabinet door can be opened by inputting a password, and if the information does not conform to the personal information, the locking structure inside the device can be automatically locked, so that the cabinet door cannot be opened even when a correct password is input. The antitheft device has a dual-protection function, so that the safety of the device is improved.

The invention relates to a detachable environmental-friendly garbage can, which comprises a base and a can body. The can body is installed at the middle part of the base. A hand-lifting can cover covers the top end of the can body. The can body consists of a top fixed ring, a movable side plate and a chassis. An isolating folded page is installed at the top of the top fixed ring. Grooves are arranged at the middle part of the top fixed ring and the middle part of the chassis. The movable side plate is inserted into the grooves. The top fixed ring is movably connected with the base through lifting rods. The detachable environmental-friendly garbage can has the beneficial effects that the height adjustment of the can body can be realized through the lifting rods and the humanized comfortable effect is achieved; the garbage can is detachable, the cleaning for preventing contaminants from being accumulated is facilitated, any waste paper and plastic sheets can be used for self-producing the garbage can to realize self-cleaning, the environmental protection awareness is enhanced, the resources are saved and the environment is protected; and the garbage can has dual protection functions and peculiar smells can be better prevented from polluting indoor air.

The invention discloses a computer start-up system for detecting by identity authentication, which comprises a fingerprint identification board, an identity card identification board and an authentication module. The output ends of the fingerprint identification board and the identity card identification board are connected with the input ends of the authentication module. The verification modulecomprises: YES output and NO output, a YES output terminal is connected with a conversion module, the output end of the conversion module is connected with a startup module, a count module is connected to the NO output terminal, the output end of the counting module is connected with a locking module, and the output end of the locking module is connected with the input end of the verification module. By the method, the invention can start the computer through the double verification mode of fingerprint identification and ID identification, thereby greatly improving the safety performance of the computer.

The invention discloses a safety protection device of an automatic die cutting machine, relating to a paper product processing machine. The invention aims at providing a safety protection device with long service life and dual protection functions for an automatic die cutting machine. The technical proposal of the invention is that the safety protection device of the automatic die cutting machine comprises a safety relay, a door-typed safety switch and a normally closed contact in the door-typed safety switch; the door-typed safety switches of all windows and doors are internally provided with two groups of normally closed contacts; wherein, two ends of the circuit connected in series of one group of normally closed contacts are respectively connected with two wiring terminals of the relay; two ends of the circuit connected in series of the other group of normally closed contacts are respectively connected with the other two wiring terminals of the relay; an electromagnetic clutch brake and the series circuit of the normally opened contact of the relays KA1 and KA2 are connected with a DC power supply. The invention is applied to die cutting machines.

The invention relates to the technical field of information security management, in particular to information security management system. The information security management system includes: an information access module, the information access module is electrically connected with an information scanning module; the information scanning module is connected with a virus detection module through a network; the virus detection module is electrically connected with a risk prediction unit; the risk prediction unit is electrically connected with a server management center; the information access module is used for accessing external information data, the information scanning module is used for integrally scanning the external information data accessed by the information access module and recording and monitoring the external information data, the virus detection module is used for detecting whether viruses are covered in the scanned information data, and the risk prediction unit is used forjudging the risk degree of the information data. The enterprise information security management system is good in information security management effect, can avoid important information leakage in anenterprise, can prevent viruses from attacking enterprise information, and has a dual-protection function.

The invention discloses a diving board capable of preventing the collision injury. The diving board comprises a diving board body, a diving board telescoping mechanism, a first detection and judgment device and a central control processing device. The diving board telescoping mechanism comprises a motor, a gear, a rack and a motor controller. The gear is connected with an output shaft of the motor, the rack is arranged on the bottom of the diving board body, and the first detection and judgment device is composed of a pressure sensor, an infrared emitter, an infrared receiver and an infrared controller. The infrared emitter is arranged on the front side face of the portion, stretching to a diving pool, of the end of the diving board body, when it is detected that the pressure at the front end of the diving board body disappears the infrared controller sends out an infrared ray emission signal to the infrared emitter, when secondary interrupt happens in the process that the infrared receiver receives the signal, a first collision signal is sent out, the output shaft of the motor rotates in the forward direction, and the diving board body retracts. By means of the diving board, when doing sports, a user is protected against the collision injury, the diving board is beneficial to efficient training or competition, and the operation cost is saved.

The invention relates to a novel simple rail clamping device. The novel simple rail clamping device comprises a cabinet body, a double-way screw rod, a first clamping plate, a second clamping plate, along bolt and a handle. The double-way screw rod horizontally arranged is arranged on the lower part in the cabinet body. The first clamping plate and the second clamping plate are symmetrically arranged on the double-way screw rod. A thread is arranged on the double-way screw rod. When the double-way screw rod rotates, the first clamping plate and the second clamping plate move in the opposite directions. A threaded hole is formed in the top of the cabinet body. The long bolt is movably arranged in the threaded hole. The handle is arranged on the outer side of the cabinet body. The handle isconnected to the double-way screw rod. The novel simple rail clamping device is simple in overall structure, and the manufacturing cost is lowered; during installation, only a box body needs to be correspondingly mounted on a main machine, and the difficulty of installation is reduced; and moreover, the novel simple rail clamping device has the dual-protection function and high practicability andis worthy of application and popularization.

The invention belongs to the technical field of an inverter, and provides a frequency protection circuit. The frequency protection circuit comprises a primary high-frequency protection circuit, wherein the primary high-frequency protection circuit is connected with a phase lock board circuit by a plug-in terminal strip and comprises a first frequency divider, an input end of the first frequency divider is connected with the plug-in terminal strip, an output end of the first frequency divider is connected with both of an input end of a second NOR gate and an input end of a second bistable-state contactor, an output end of the second bistable-state contactor is connected with another input end of the second NOR gate, an output end of the second NOR gate is connected with the plug-in terminal strip, the frequency protection circuit also comprises a secondary high-frequency protection circuit and a low-frequency protection circuit, and the secondary high-frequency protection circuit is connected with the phase lock board circuit by the plug-in terminal strip. The frequency protection circuit is ingenious in concept, and the technical problems of poor safety and high maintenance and replacement cost of a current inverter control system in the prior art are solved.

The invention relates to a temperature and safety control device of a liquid heater, comprising a DC power supply, a circuit board, a fan and a first heat detector of the fan which are all arranged in a housing, and a keyswitch which is arranged on the housing; wherein, the circuit board is provided with a keyswitch circuit, a first heater detector circuit, a fan switch circuit and a heater switch circuit. The invention is characterized in that the device further comprises a pressure switch gear which comprises a slidable metal slide block, one part of which extends out the housing, a metal moving contact block connected with the metal slide block into a whole, a metal static contact block which is fixed in the housing and is matched with the metal moving contact block, and an offsetting spring driving the metal slide block to move; the metal slide block is inside provided with a second heat detector; the circuit board is further provided with a pressure switch circuit and a second heat detector circuit; a foot crust of the housing is inside provided with a weight switch, the circuit board is provided with a weight switch circuit; the circuit board is further provided with a CPU which receives the signals from the keyswitch circuit, the first and the second heat detector circuits and the weight switch circuit as well as the pressure switch circuit and then controls the operation of the heater switch circuit and the fan switch circuit. The invention has the advantages that the heater switch circuit is set in work when the liquid heater is provided with a water bottle with water which has the double protective function, the use is safe and reliable, and the structure is simple.

The invention discloses a safe anti-overflow inspection well cover, and relates to the field of municipal construction. The well cover comprises a top cover, a supporting device is arranged below thetop cover, two drain holes are formed in the top cover in a penetrating manner, drain pipes are fixedly connected to the positions, located at the drain holes, of the bottom end of the top cover, andanti-overflow mechanisms are arranged in the drain pipes; and the anti-overflow mechanisms comprise water inlet cavities, middle cavities and water outlet cavities, wherein the water inlet cavities, the middle cavities and the water outlet cavities are formed in a bottom cover and are sequentially arranged from top to bottom and communicate with one another, wherein first circulation openings areformed in the joints between the water inlet cavities and the middle cavities, second circulation openings are formed in the joints between the water outlet cavities and the middle cavities, and floating balls are arranged in the middle cavities. According to the well cover, through the arrangement of the supporting device, the top cover can be supported in a multi-point mode, and the inspection well cover has a dual-protection function; and through the arrangement of the anti-overflow mechanisms, under the condition that the road surface drainage is achieved, water in a sewer can be effectively prevented from overflowing and flowing back to a road surface, and the safety and sanitation of the road surface are improved.

The invention discloses an intelligent anti-theft lock, a controlling method, a system and a security door. The intelligent lock comprises a lock body arranged on a door leaf and a lock tongue limiting device arranged on door frame. The lock tongue limiting device comprises a controller, a power module, an identity information input module, a bolt and a driving mechanism for driving bolt flexing. The controller is electrically connected with the power module, the identity information input module, the bolt and the driving mechanism respectively. A recess is installed on the front end of the lock tongue of the lock body. When the lock body is locked, the extended bolt is inserted into the recess of the front end of the lock tongue; the retracted bolt is extracted from the recess of the front end of the lock tongue. Unlocked by the means of machine and electronic control,the system has double security functions and improves security greatly.

The invention discloses an anti-theft lock for an automobile steering wheel. One end of a first mounting rod is connected with a second mounting rod; an anti-skid handle is arranged at the other end of the first mounting rod; the first mounting rod is arranged at the top of a first control box; the second mounting rod is mounted at the top of a second control box; a first hydraulic cylinder is arranged at the bottom of the first control box; the first hydraulic cylinder is connected with a first bent rod through a first hydraulic rod; a second hydraulic cylinder is arranged at the bottom of the second control box; the second hydraulic cylinder is connected with a second bent rod through a second hydraulic rod; a first safety lock is mounted at the intersected part of the first mounting rodand the second mounting rod; and a second safety lock is arranged at the top of a cross plate. The anti-theft lock for the automobile steering wheel has the advantages that the steering wheel can behooked; the bottom end of the third hydraulic rod is enabled to be in contact with the ground by using the first safety lock and the second safety lock so that the whole steering wheel is fixed; therefore, the steering wheel is uneasy to shake; and the anti-theft lock has double protection functions and is convenient to adjust and use.

The invention relates to a detachable environmental-friendly garbage can, which comprises a base and a can body. The can body is installed at the middle part of the base. A hand-lifting can cover covers the top end of the can body. The can body consists of a top fixed ring, a movable side plate and a chassis. An isolating folded page is installed at the top of the top fixed ring. Grooves are arranged at the middle part of the top fixed ring and the middle part of the chassis. The movable side plate is inserted into the grooves. The top fixed ring is movably connected with the base through lifting rods. The detachable environmental-friendly garbage can has the beneficial effects that the height adjustment of the can body can be realized through the lifting rods and the humanized comfortable effect is achieved; the garbage can is detachable, the cleaning for preventing contaminants from being accumulated is facilitated, any waste paper and plastic sheets can be used for self-producing the garbage can to realize self-cleaning, the environmental protection awareness is enhanced, the resources are saved and the environment is protected; and the garbage can has dual protection functions and peculiar smells can be better prevented from polluting indoor air.

The invention relates to a double-brake loop chain electric hoist which comprises a reduction gearbox (1), a motor (2), a chain (3), a chain wheel (4) and a lifting hook (5), wherein the motor (2) is connected with an input shaft of the reduction gearbox (1); the chain wheel (4) is sleeved on an output shaft of the reduction gearbox (1); one end of the chain (3) is wound on the chain wheel (4), and the other end is connected with the lifting hook (5); a first-level transmission wheel (1.6) is rotatably arranged on a second shaft (1.3) through thread; a brake disc (1.10) is sleeved on the second shaft (1.3) and composed of a sleeve (1.10.1) and an annular flange (1.10.2) arranged on the sleeve (1.10.1); a ratchet mechanism (1.11) is movably sleeved on the sleeve (1.10.1); and the left and right sides of a ratchet of the ratchet mechanism (1.11) are provided with a friction plate (1.12) respectively. The double-brake loop chain electric hoist provided by the invention has dual-protection function.

The invention discloses a general switch cabinet circuit breaker moving contact temperature-measuring sensor device. The general switch cabinet circuit breaker moving contact temperature-measuring sensor device comprises a fixing block, a PCB arranged on the back face of the fixing block, a ribbon main body arranged on the front face of the fixing block, and a steel ribbon arranged on the ribbon main body. The general switch cabinet circuit breaker moving contact temperature-measuring sensor device has the wider application range, and can be mounted and used on a switch cabinet circuit breakermoving contact with the any size, mounting and using of the general switch cabinet circuit breaker moving contact temperature-measuring sensor device are simple and convenient, the general switch cabinet circuit breaker moving contact temperature-measuring sensor device can be grasped by related personnel more easily, and the using effect of a product is improved.

The invention provides a paper shredder with a double protection function, which comprises a case, a circuit board is arranged in the case, a first current-conducting plate and a second current-conducting plate are fixed at the upper end of the case, the first current-conducting plate and the second current-conducting plate are both electrically connected with the circuit board, a paper feeding groove is formed between the first current-conducting plate and the second current-conducting plate, a paper shredding module is arranged on the lower side of the paper feeding groove, a non-contact infrared thermometer is fixed to the case, and the non-contact infrared thermometer is located on one side of the paper feeding groove. According to the paper shredder provided by the invention, the situation of the position of the paper feeding groove can be monitored in real time through human body electric field induction and temperature measurement induction of the non-contact infrared thermometer, a power source of a motor is rapidly turned off with the assistance of a control system, potential safety hazards generated when the hand of a user accidentally stretches into the paper feeding groove are eliminated, and the paper shredder has the double protection function.

The invention discloses a safe and overflow-proof manhole cover, which relates to the field of municipal construction, and comprises a top cover, a support device is arranged under the top cover, two drain holes are opened through the top cover, and the bottom end of the top cover is located at the bottom of the drain The hole is fixedly connected to the water pipe, and the water pipe is provided with an anti-overflow mechanism. And the water outlet chambers are arranged and communicated sequentially from top to bottom, the connection between the water inlet chamber and the middle chamber is provided with a first flow port, the connection between the water outlet chamber and the middle chamber is provided with a second flow port, the A floating ball is arranged in the middle cavity. The present invention can provide multi-point support for the top cover by setting the supporting device, so that the manhole cover has double protection functions, and can effectively prevent the water in the sewer from overflowing back to the road surface by setting the anti-overflow mechanism under the condition of satisfying the drainage of the road surface On the road, improve the safety and sanitation of the road.

The invention relates to an active intelligent anti-surge device for an ultra-high-speed centrifugal fan, which includes a fan operating state monitoring system, a fan measurement and control system, a composite vent valve and a frequency converter, and a fan operating state monitoring system to monitor wind pressure, air volume, and bearing vibration. , motor current and other parameters, and the fan operating status fed back by the fan monitoring system is screened in real time. If there is a sign of surge, anti-surge measures will be taken automatically. Functional vent valve, the frequency converter controls the motor in real time to adjust the running speed. This device can ensure active prevention in the early stage of fan surge, and timely retreat when surge occurs, so as to avoid damage to the ultra-high-speed centrifugal fan caused by surge.

The invention provides an electric lifting device applicable for industries such as cosmetology, medical treatment, and the like, and belongs to the technical field of electromechanical integration. The invention solves the problems that a lifting sleeve of the prior electric lifting chair has larger friction resistance and bigger noise in the lifting process. The electric lifting device comprises a body with a plug jack and a reducing motor, wherein the plug jack is provided with a screw mandrel and a push rod inside; the push rod is sleeved on the screw mandrel and in threaded connection with the screw mandrel; the inner end of the screw mandrel is connected with the reducing motor; the outer wall of the push rod and the inner wall of the plug jack form a first chamber; the inner wall of the push rod and the screw mandrel form a second chamber; lubricant oil is filled in the first chamber and the second chamber; and the push rod is provided with an oil communicating hole for communicating the first chamber and the second chamber, and a positioning mechanism for preventing the push rod rotating axially. The screw mandrel and the push rod of the electric lifting device are all soaked in the lubricant oil, and the electric lifting device adopts oil immersed lubrication so as to reduce wear of materials, reduce the noise and prolong the service life.

The invention provides a full-automatic intelligent cut-off water-sealed valve system and method for hot dirty gas. The system comprises a water-sealed valve body, a radar liquid level meter, a water feeding pipe, a water return pipe, a water tank, a water pump and an electromagnetic valve. The water-sealed valve body is of a box type structure, and a gas inlet, a gas outlet and a gas diffusion opening are formed in the top of the water-sealed valve body. A high-position water outlet, a middle-position water outlet and a low-position water outlet are sequentially formed in the side wall of the box body from top to bottom; the water inlet is formed in the same horizontal position as the high-position water outlet and is connected with a water pump outlet through a water feeding pipe; and the electromagnetic valve is arranged on a pipeline of the middle-position water outlet. The radar liquid level meter is fixed to the upper end in the water-sealed valve body box body, and the radar liquid level meter, the water pump and the electromagnetic valve are all connected with the PLC. Through the electromagnetic valve design of the high water outlet, the middle water outlet, the low water outlet and the middle water outlet, the water-sealed valve can be automatically in the normal working state and the cut-off state, and the water-sealed valve can be applied to a hot dirty gas pipeline and is safer and more reliable.