65results about How to "Avoid danger" patented technology

The application provides a guide and breathing system for a bronchofibroscope, which comprises a cover body used for covering a throat and forming a closed cover cavity communicating with a trachea in use, and a pipeline structure fixedly connected with the cover body and comprising an endoscope pipeline and a ventilation pipeline which are independent of each other and communicate with the cover cavity, and a drainage pipeline arranged to pass through the inside of the cover body but not communicate with the cover cavity, so as to communicate with an esophagus through a drainage outlet on the cover body in use. When the guide and breathing system is used, the reflux of secretions of a patient during an endoscope operation can be disposed through the independent drainage pipeline, and the bronchofibroscope only occupies part of the space in the laryngeal mask channel in the case of the endoscope operation, so that the patient can inhale sufficient oxygen, and the safety of the patient during the operation of the bronchofibroscope is ensured.

The utility model relates to the technical field of hydrogen energy sources, in particular to a 70MPa hydrogen integrated two-stage pressure reduction control device which comprises a valve body, and a gas inlet channel, a high-pressure channel, a first-stage pressure reduction channel, a second-stage pressure reduction cavity and a gas outlet channel are formed in the valve body. The electromagnetic valve is arranged on the side of the valve body, an inlet of the electromagnetic valve communicates with the air inlet channel, and an outlet communicates with the high-pressure channel; the first-stage piston type pressure reducing mechanism is arranged on the valve body, an inlet of the first-stage piston type pressure reducing mechanism communicates with the high-pressure channel, and an outlet communicates with the first-stage pressure reducing channel; the second-stage diaphragm type pressure reducing mechanism is arranged at the top of the valve body, the outlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the second-stage pressure reducing cavity and can input pressure-reduced gas into the second-stage pressure reducing cavity, and the inlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the first-stage pressure reducing channel; and the second-stage pressure reducing cavity is connected with the air outlet channel. By means of the unique two-stage pressure reduction structural design, stable pressure reduction output of 70 Mpa hydrogen can be effectively achieved, and the structure is stable and compact.

The utility model discloses a kind of piece type wind power tower cylinder overhauling device, belong to wind power technology field, including support platform, support platform two sides are provided with several support rotating components, several support rotating components are loaded with wind power tower cylinder, support platform two sides are provided with limit component, support platform is provided with moving platform, and overhauling component is slidably connected on moving platform, personnel is convenient to enter and carries out overhauling operation to wind power tower cylinder inner wall, carries out overhauling operation to internal connecting place, it is easy to operate, and wind power tower cylinder is effectively limited when personnel overhauls inner wall, avoid its deflection, guarantee the security of overhauling.

The application discloses a kind of high-temperature combustion atmosphere under packed bed structure multivariate detection system and method, gas supply system, porous medium combustion unit, real-time monitoring system sequentially connect, the top of porous medium combustion unit is provided with high-temperature flue gas collection pipe, high-temperature flue gas collection pipe is connected product recovery chamber, product analyzer in turn;Real-time detection system includes temperature monitoring system and shape filler topography monitoring system;Detection rod is used to detect temperature abnormal area and the temperature and topography condition of different height cross section in combustion unit interior.This application uses thermocouple and high-speed camera to monitor temperature and outer filler crushing and discoloration condition in real time, detects the local temperature and topography state of inner filler that cannot be directly observed by detection rod, records overall damage and discoloration degree, quantitatively judges whether damage affects combustion.The health status of detection packed bed is helpful to the efficient use of low calorific value fuel, reduces pollutant emission, avoids resource waste.

This invention belongs to the field of organic synthesis technology, specifically relating to a method for preparing 3-hydroxy-2-methylbenzoic acid. The method comprises the following steps: mixing 3-amino-2-methylbenzoic acid, an inorganic acid, a catalyst, and water for hydrolysis to obtain crude 3-hydroxy-2-methylbenzoic acid; extracting the crude 3-hydroxy-2-methylbenzoic acid to obtain an extract phase and a raffinate phase; and sequentially washing and concentrating the extract phase to obtain the 3-hydroxy-2-methylbenzoic acid. The method provided by this invention is simple, generates no waste, and has a relatively simple ammonium salt recovery process, making it a green and environmentally friendly synthesis process. As shown in the example data, the yield of 3-hydroxy-2-methylbenzoic acid synthesized by this invention can reach over 94%, and the purity can reach up to 98%, demonstrating good industrial value.

This invention relates to the field of building canopy technology. To address the lack of interception capabilities for falling objects from heights in existing building canopies, this invention discloses a building buffer canopy designed to prevent such incidents. The canopy includes a roof panel, with a mounting housing at one end. An inclined buffer plate is movably mounted on the side of the mounting housing near the roof panel. In use, when a falling object lands on the buffer plate, the buffer airbag is compressed and deformed. Air from the buffer airbag is then transported via a connecting pipe to a blocking airbag. The inflated blocking airbag extends from the mounting housing and blocks the side of the buffer plate, preventing the falling object from sliding off and causing danger. Simultaneously, an alarm sounds, alerting people to stay away from the area around the roof panel and prompting staff to promptly check and remove any falling objects intercepted by the blocking airbag on top of the buffer plate, thus enhancing safety.

This application discloses a safety platform for a friction press, comprising: a press body, which includes a base, a flywheel, and a friction disc. The flywheel is rotatably mounted on the top of the base, and the friction discs are rotatably mounted on both sides of the flywheel. The friction discs are connected to the flywheel and are connected to the pulley of a motor via a belt; a support platform, which is located around the base and below the flywheel, and is fixed to the ground by columns; a fence, which surrounds the support platform; and a protective frame, which is mounted on the support platform and is used to cover the belt and motor. The friction press safety platform described in this application not only reduces the risk of falls from heights and avoids dangers caused by falling screws, nuts, washers, etc., but also effectively prevents the high-speed rotating pulley from falling in the event of a broken motor shaft, thus improving safety and reliability.

A vehicle-mounted hazardous gas detection device includes a detection main unit and an alarm. The detection main unit is located inside the vehicle interior and includes an activation unit, a control unit, a hazardous gas detection unit, an alarm unit, a wireless transmission unit, and a power supply unit. It also includes a housing, within which the aforementioned components are installed. The power supply unit provides power to all the aforementioned components. The activation unit senses vibrations in the vehicle interior and activates the power supply unit. The hazardous gas detection unit detects the concentration of hazardous gases inside the vehicle interior and feeds this information back to the control unit. If the concentration exceeds a threshold, the control unit triggers a first-stage alarm mode, activating the alarm unit to warn the occupants. When the alarm unit continues to sound for a preset duration, a second-stage alarm mode is triggered, activating the alarm to warn bystanders outside the vehicle to assist the occupants in escaping danger.

The utility model relates to the technical field of protective appliance especially is concerned on a kind of noise reduction goggles, including mirror frame and temple, the both ends of mirror frame are hinged respectively with temple, mirror frame is equipped with goggles lens, temple is equipped with noise reduction pendant, noise reduction pendant is equipped with adjusting mechanism, cotton thread and noise reduction earplug, one end of cotton thread is connected in adjusting mechanism, its other end is connected in noise reduction earplug, adjusting mechanism is installed in temple, and the length of cotton thread is adjusted, to release or retract noise reduction earplug. From the above, the efficient integration of the goggles and the noise reduction earplug is achieved, providing one-key retracting and automatic indexing function, significantly improving user experience and operation convenience, while ensuring the stability and safety of the equipment, suitable for a variety of high-noise scenes, meeting the user's needs in protecting eyes and hearing, also improving the practicability and aesthetics of the product.

This invention provides a backflush leveling device for an esterification reactor, comprising a reactor; a backflush level gauge is installed on the reactor; the backflush level gauge includes a gas source, a pressure reducing valve, a blowing section A, a blowing section B, a pressure transmitter, a blowing pipe, and a static pressure pipe; the gas source is connected to the pressure reducing valve, one path of which is connected to blowing section A and the other to blowing section B; blowing section A is connected to the pressure transmitter and the blowing pipe; blowing section B is connected to the pressure transmitter and the static pressure pipe; a one-way valve A is provided on the blowing pipe, and a one-way valve B is provided on the static pressure pipe; the lower end of the blowing pipe is close to the inner bottom surface of the reactor, and the static pressure pipe is close to the inner top surface of the reactor; a pressure relief valve is provided on the side of the reactor. This backflush leveling device for an esterification reactor has the advantages of long service life and safe operation; using this device can avoid safety hazards and has the advantage of high measurement accuracy.

This utility model belongs to the field of carriage technology and discloses a large-capacity carriage, including: a base and a carriage assembly. The base is used to support the large-capacity carriage. The carriage assembly includes a main support, a T-shaped support, a connector, an L-shaped support, a carriage one, a limiting component, a rubber component, and a carriage two. The main support is connected to the base, the T-shaped support is disposed on the main support, the connector is connected to the T-shaped support, the L-shaped support is connected to the connector, carriage one is movably disposed on the main support, the limiting component is disposed on carriage one, the rubber component is adhered to carriage one, and carriage two is snapped into the limiting component. This design can effectively classify and store goods in a precise manner, avoiding disorderly stacking of goods, significantly improving the efficiency of loading and unloading goods, and preventing carriage two from impacting the three-dimensional frame structure, thereby ensuring the structural stability of the three-dimensional frame.

The application discloses a cylinder residual pressure harm somatosensory device, which comprises a body, a test part arranged on the top of the body, first and second clamping plates arranged on the top of the body and oppositely arranged on the two sides of the test part, a gas path driving unit comprising a gas source, a valve control assembly and a cylinder, the gas source being connected with first and second cavities of the cylinder through the valve control assembly, and an output end of the cylinder being coupled with one of the first and second clamping plates to drive the first and second clamping plates to move in the direction of approaching or moving away from each other, a test piece arranged on the test part, an inductor for detecting objects on the test part except the test piece, and a controller for controlling the valve control assembly to work according to the sensing result of the inductor.

The utility model relates to power transmission line protection technical field discloses a kind of thermal power plant line protection devices, including protective shell, the inner wall rear side of protective shell is equipped with mounting plate, the outer wall front side of mounting plate is fixedly connected with current transformer, the outer wall upper and lower end of current transformer is equipped with electric wire, the outer wall front side middle part of mounting plate is equidistantly equipped with fixed mechanism, and the fixed mechanism is used to fix and distinguish line.In the utility model, rotating knob, knob will drive threaded rod to rotate in the inner wall of limiting block, threaded rod rotation will drive clamping block one, let clamping block one left and right slide on slide rail to close to clamping block two, clamping block one can be cooperated with clamping block two and hold electric wire, to realize the adaptive clamping of different diameter electric wire, fasten electric wire, make electric wire keep neat and orderly, prevent electric wire arrangement disorder, inconvenient operation, avoid dangerous caused by miswiring.

This invention provides a method and system for dynamic correction of a hoist under speed loop control, relating to the field of data processing. The method includes: acquiring the hoist car's descent information during cargo entry into the hoist car, and performing dynamic correction of the hoist's descent based on this information; collecting the real-time motor speed of the hoist during cargo transportation, and adjusting the phase current of the hoist motor based on the real-time motor speed and a preset motor speed; and acquiring the hoist car's lifting information during cargo exit from the hoist car, and performing dynamic correction of the hoist's lifting based on this information. This method has the advantage of improving the real-time performance and accuracy of hoist correction.

The application discloses appearance detection equipment, including: conveying line, for conveying product to be detected, the conveying line has a material receiving position and a detection position; the transfer module is arranged below the conveying line, the transfer module includes a horizontal movement mechanism and a pick-and-place assembly, the horizontal movement mechanism drives the pick-and-place assembly to reciprocate between the material receiving position and the detection position, and the pick-and-place assembly is used for conveying the product to be detected from the material receiving position to the detection position; and a detection device is arranged at the detection position, and the detection device is used for detecting the product to be detected on the detection position. The appearance detection device provided by the technical scheme of the application can realize automatic conveying and detection, reduce the work intensity, improve the precision of product detection, and ensure the yield of products.

The application provides a kind of electromechanical equipment mounting rack, belongs to electromechanical equipment installation technical field.Its technical scheme is: including fixed frame, cable rack and trolley;Fixed frame includes installation flat plate, a pair of fixed plates are symmetrically arranged on the installation flat plate, the opposite inner side of both sides fixed plate is provided with clamping block;Cable rack includes mounting block, the both sides of mounting block are provided with the clamping groove matched with clamping block, the lower part of clamping block is provided with support block, the lower part of support block is provided with recess one, the bottom surface in recess one is provided with magnet one;Trolley includes bottom plate, support rod is arranged on the bottom plate, the free end face of support rod is provided with metal block one matched with magnet one.The beneficial effects of the application are: the device is simple in structure, convenient to operate, realizes the fixed installation of high position cable and the straightening adjustment of cable, avoids the danger caused by workers climbing, and improves the work efficiency.

The utility model relates to inductor connecting wire technical field especially relates to a kind of inductor connecting wire connection protection structure;Technical scheme:an inductor connecting wire connection protection structure, including connecting line main body, connecting component, limit ring, accommodating groove, partition material, mounting groove and pilot lamp, the both ends of connecting line main body are provided with connecting component, the inside of connecting component is provided with limit ring, the inside of limit ring is provided with accommodating groove, the inside of accommodating groove is provided with partition material, the outside of connecting component is provided with mounting groove, the inside of mounting groove is provided with pilot lamp;The utility model is through setting multilayer protection connection structure, when inductor connecting wire connects other equipment, the both ends of connecting line can be multilayer protection, prevent the dangerous situation that the environment around connecting wire is harsh occurs.

The utility model relates to a pressure relief well belongs to pressure relief well technical field, concretely is a kind of pressure relief well with permanent pressure relief effect, including bottom plate, the bottom plate is equipped with pressure relief well, floor is poured on the bottom plate, steel plate is fixedly connected in pressure relief well, steel plate is fixedly connected with pressure relief pipe on it, ball valve is equipped on the pressure relief pipe, high-strength grouting material is equipped on the steel plate, floor is movably inserted with cover plate, four clamping grooves are set up on the floor, recess is set up in the cover plate;In the utility model, by multilayer structure design and end installation ball valve, late stage can be directly connected pipe water diversion pressure relief, realizes the long-term stable pressure relief effect, and pressure relief well position leakage can be promptly repaired, reduces floor leakage situation, by cover plate, recess, clamping plate, limit post, connecting plate, spring, rotating plate, limit slot and slot cooperation, locking cover plate, avoid irrelevant personnel to open cover plate, operate ball valve, cause danger.

The utility model discloses a kind of protective mould structures of press-in-place, comprising: machining table, the lower die of the upper end of machining table is installed, the upper end of machining table and the both sides of lower die are provided with sliding slot, the inner wall of two The sliding slot is fixedly connected with guide rod, the upper end of machining table and the outer side wall of lower die are provided with protective groove, the inner wall of protective groove is provided with protection assembly, connection cavity is provided between protective groove and sliding slot.The utility model is provided with protection assembly, can automatically raise protective frame in press-in-place process, so that protective pad surrounds the outer side wall of lower die, provides reliable safety guarantee for operator, prevent dangerous when press-in-place operator miscontact outer side wall of lower die, simultaneously also facilitate staff to take out the workpiece of machining completion, improve work efficiency.

This utility model relates to the field of fire escape technology, specifically a dual-rope rapid descent high-rise fire escape device, including a mounting base and two steel wire ropes. The mounting base is U-shaped, and four pulleys are rotatably installed in the grooves at both ends of the mounting base. The four pulleys are in contact with the two steel wire ropes respectively. Anchors are provided at both ends of the steel wire ropes. A load-bearing mechanism and a deceleration mechanism are installed on the top of the mounting base. The load-bearing mechanism includes a fixed base, a carabiner, a fixing strap, and an escape bag. The fixed base is U-shaped, and both ends of the fixed base are annular. The fixed base is fixedly installed on the top of the mounting base. Carabiners are connected to the annular portions at both ends of the fixed base. There are four fixing straps. This dual-rope rapid descent high-rise fire escape device can realize rapid escape from high-rise building fires with high safety.

This utility model provides a monitoring device for the unlocking of containers on a rail-mounted crane. It includes a camera mounted on the support leg of the rail-mounted crane facing the container, a switch electrically connected to the camera, a video recorder electrically connected to the switch, and a display screen electrically connected to the video recorder. By mounting the camera on the support leg of the rail-mounted crane and electrically connecting it to the display screen at the back end, workers can directly observe whether the locks on the container and the railway container flatcar are unlocked. This eliminates the need for workers to be on-site to observe the unlocking status, thus avoiding certain dangers. Furthermore, a cantilever structure is formed by a winch, a first crossbar, and a boom. The winch, via a steel wire rope, can move the camera positioned below the boom between the two containers, allowing each camera to observe the unlocking status of at least two containers, thereby saving overall project costs.

This utility model provides an intelligent transformer with an overload protection and early warning device, belonging to the field of transformer technology. It includes a transformer, a transformer protector fixedly installed on the top of the transformer, and a winding reel on the top of the transformer. The winding reel is rotatably mounted on the top of the transformer via an elastic reset member. A transformer connection wire is wound around the outer wall of the winding reel. The terminals of the transformer protector and the transformer connection wire are connected via a spring wire. When the connection wire is pulled off the winding reel, as the winding reel rotates, one end of the spring wire winds around the outside of the winding reel, ensuring the stability of the connection between the spring wire and the transformer protector. The spring wire provides additional extension space, ensuring sufficient stretching space when the connection wire is connected to the transformer.

This utility model discloses a leak-proof floating roof for an oil storage tank, comprising: a tank body, a water-absorbing expansion strip slidably connected to the inner wall of the tank body, two bottom plates fixedly connected to the outer surface of the water-absorbing expansion strip, a support rod fixedly connected to the lower surface of the two bottom plates, a guide plate fixedly connected to the lower end of the support rod, an airbag fixedly connected to the lower surface of the guide plate, a sealing ring fixedly connected to the outer surface of the airbag, a bottom plate fixedly connected to the lower surface of the sealing ring, a leakage port provided on the outer surface of the bottom plate, and a sealing valve threadedly connected to the outer surface of the leakage port. Through the above device, a double-layer sealing condition is achieved, and a liquid diversion channel is designed so that even in the event of a small leak, the liquid can be diverted in a directional manner, preventing liquid accumulation on the surface of the floating roof and thus avoiding danger. Furthermore, the water-absorbing expansion strip prevents the sealing strip from failing to quickly seal after a large amount of liquid leaks due to aging or other issues.

This utility model relates to the field of hydrogen energy storage cylinder technology, specifically a hydrogen energy storage cylinder with a pressure relief structure. It includes a cylinder body, a pressure relief assembly, and an energy recovery assembly. The energy recovery assembly includes a turbine tube, impeller blades, and a motor. A fixed shell is fixedly connected to the center of the turbine tube, and the lower surface of the fixed shell is fixedly connected to the motor. A drive shaft is rotatably connected inside the motor, passing through the fixed shell and extending to its upper surface. When the cylinder pressure is too high, the pressure relief assembly opens, allowing high-pressure hydrogen to enter the turbine tube, driving the impeller blades to rotate. The blades, through a pull rod and a fixed ring, drive the drive shaft to rotate, thus driving the motor to generate electricity and recover energy. Pulling the pull rod adjusts the blade angle, changing the hydrogen thrust effect and affecting the drive shaft speed and energy recovery efficiency. The pressure relief assembly can release excessive pressure in a timely manner, ensuring cylinder safety. Utilizing the pressure relief energy to generate electricity improves energy efficiency.

The utility model belongs to the field of monitoring room especially for a kind of nursing bed for conveniently transferring patient in monitoring room, including nursing bed frame, the fixed connection of the left end surface of seat plate has the drive frame in the lower side of backboard, and the fixed connection of the upper end surface of threaded slider has connecting frame, by rotating machine shaft, after the rotation of ninety degrees of seat plate, patient is towards nursing bed frame one side, and threaded shaft is rotated, threaded slider can be driven to move left, backboard is rotated around second rotation shaft by connecting rod, and the back of patient is supported, and bottom plate is rotated downward by rotating third rotation shaft, and the lower leg part of lower limbs of patient is placed, so that patient is switched into sitting posture safely and quickly, the efficiency and safety of subsequent transfer are improved, and adjusting protection frame is moved up and down by electric push rod, patient is protected, and adjusting protection frame can be moved down to avoid the rotation of seat plate.

The utility model relates to a kind of automatic cover plate opening and closing warning devices of fan tower platform.It includes the lifting type warning light being set in the four corner position of platform window and the multiple cover warning lights being installed on the inner side surface of platform cover plate, further include controller and platform above position sensor and platform below position sensor, each lifting type warning light, each cover warning light and position sensor are connected with controller;Lifting type warning light includes external cylinder and the internal cylinder in its inside, top cover plate with top window in middle portion is installed in the top of internal cylinder and top LED module is installed, side window is provided in the side of internal cylinder and side LED module is installed, electric push rod for driving top cover plate to lift is installed in the inside of external cylinder.The utility model produces necessary safety warning effect in the process of platform cover plate opening and closing, prompt personnel to move away from the action area of platform cover plate, improve the safety of personnel and equipment.

This invention relates to a fully automatic furniture board cutting device, comprising: a workbench; a material placement platform disposed on the workbench, the material placement platform being slidably connected to the workbench; and a cutting mechanism disposed above the material placement platform, the cutting mechanism including a lifting assembly and a plurality of cutting blades spaced apart on the side of the lifting assembly near the material placement platform. The device of this invention has multiple cutting blades installed at the bottom of a fixed plate, allowing the cutting blades to cut multiple steel plates, greatly improving the efficiency of steel plate cutting. Simultaneously, the sliding connection between the material placement platform and the workbench allows the material placement and retrieval processes to be located beside the cutting mechanism, effectively avoiding the danger of operators removing material blocks directly from the cutting blades.

This utility model relates to the field of water conservancy construction technology, specifically a hoist for water conservancy construction, including a transport platform. A hydraulic cylinder is rotatably mounted on the center of the top surface of the transport platform, and a support frame is rotatably mounted on one end of the transport platform. The advantages of this utility model are: by setting up a transport platform and a support frame, the support frame is driven by the hydraulic cylinder to rotate relative to the transport platform, thus facilitating the control of one end of the support frame to rotate into the interior of the foundation pit. By setting two first guide rails and a second guide rail, it is convenient to push the moving platform and water pump along the length of the first guide rail. When the support frame is in a horizontal state, the moving platform is positioned at the end of the support frame away from the transport platform. Therefore, after the support frame rotates into the foundation pit, the water pump enters the water, thus avoiding manual entry into the foundation pit and preventing potential dangers. The overall structure is simple and effectively solves the problems existing in the prior art.