31results about How to "Ensure life, health and safety" patented technology

The invention discloses a construction ventilation method for a large and long tunnel. Before the car crossing between the left hole and the right hole of the tunnel is penetrated, the tunnel adopts apress-in ventilation method and the entrances and exits of the left and right holes are externally provided with local ventilators, and the local ventilators can supply air to each face of the tunnelrespectively; meanwhile, in order to ensure the flow stability of the airflow in the tunnel after the crosswalk of the tunnel is penetrated, a jet fan is installed at intervals of the left or right hole of the tunnel to guide the airflow direction and blow off the accumulated gas in a local section. The method provided by the invention fully utilizes the left and right holes and the intermediatecar crossing of the parallel construction, reduces the convection and vortex of the air in the hole by adopting the method of single hole intake and single hole exhaust, improves the ventilation efficiency, and ensures the life health safety of construction worker maximally.

The invention discloses an electrical system of a hybrid power rail car. The electrical system comprises a main and auxiliary integrated converters of one weight or more than two weights. The main and auxiliary integrated converter comprises a rectification module, a first bridge arm, an intermediate DC link, a traction inversion module, an auxiliary inversion module connected to the intermediate DC link, and an isolation output module connected with the auxiliary inversion module which are connected in sequence. An engine is connected to a generator which is then connected to the rectification module. One end of the power battery is connected between the two serially connected switch tubes of the first bridge arm through the chopper reactor, and the other end of the power battery is in common ground connection with the intermediate DC link. And the traction motor is connected with the traction inversion module. The technical problems that an existing electrical system adopts uncontrollable rectification, the size of intermediate direct-current voltage cannot be adjusted, a contact network and an engine unit cannot supply power at the same time, and power is insufficient due to the fact that the system cannot adapt to power reduction operation of the engine in a contact network-free environment and a plateau environment can be solved.

The invention discloses a remote electrocardiogram monitoring and health management platform based on a cloud platform. The platform comprises information collection equipment, an Internet of Things module, a cloud service platform, a data analysis system, an abnormality alarm system, and an expert team precise analysis and diagnosis system. A stage data report of the user can be checked and analyzed, and data of other terminal users can be managed according to permission agreement. For abnormal data, the cloud service platform has the functions of pushing information to terminal users, managers and expert teams, providing three services of data analysis reports, expert accurate guidance and file query, interacting with the expert teams, helping to guide the users to obtain health guidance and helping the managers to know the health conditions of the users in real time.

The invention discloses an industrial robot used in a dangerous working environment, which comprises a support mechanism, a feeding mechanism, a clamping mechanism, a transfer mechanism and a material storage mechanism. The support mechanism includes a T-shaped support platform, and the T-shaped support The four corners of the bottom of the platform are welded and fixed with support leg universal wheels, the top surface of the T-shaped support platform in the middle position is fixed with a top support platform, and the top surfaces of the T-shaped support platform at both sides are fixed. There is a side support platform, the back of the T-shaped support platform is welded with a push rod near the position of the top support platform, and a first stepping motor is fixed on the upper end surface of the top support platform close to the position of the push rod. In the present invention, the industrial robot is composed of a supporting mechanism, a feeding mechanism, a clamping mechanism and a material storage mechanism. Under the combination of the supporting mechanism, the feeding mechanism and the clamping mechanism, it can easily replace human beings and engage in dangerous working environments. work, reduce human labor intensity, and ensure human life, health and safety.

The invention relates to the technical field of medical instruments, in particular to multifunctional peritoneoscope grasping forceps. The multifunctional peritoneoscope grasping forceps are characterized by comprising a handle part (1), a connecting rod (2) and claws (3); one end of the connecting rod (2) is detachably fixed to the handle part (1), the claws (3) are movably mounted at the other end of the connecting rod (2), and a guide wire (4) capable of controlling the claws (3) to be opened and closed is arranged in the connecting rod (2); liquid guide channels (5) are arranged in the connecting rod (2) and the claws (3), one end of the liquid guide channel (5) in the connecting rod (2) is communicated with the liquid guide channels (5) in the claws (3), and the other end of the liquid guide channel (5) in the connecting rod (2) is communicated with a flushing and sucking device.

The invention discloses a mining safety helmet with a dustproof effect. The mining safety helmet comprises a filter element layer, a dustproof mask and a mining safety helmet body. The filter element layer comprises a moist sponge filter element, a waterproof cloth layer and an ABS plastic frame, and the dustproof mask comprises a mask body, a cotton surrounding edge and a high-elasticity silica gel plastic soft belt. The using method comprises the following steps that during underground operation, the mask is taken down from the position above the tongue of the safety helmet and put on the mouth and the nose. According to the device, the face load of a common dustproof mask to an operator can be greatly reduced, and operation is convenient; and compared with a common dust mask, the dust mask added with a filtration distance for a dust - containing gas to get into the respiratory system has the advantage that the inhaled rate of dust can be effectively reduced.

The invention discloses a tricycle which comprises a frame, a handlebar arranged on the frame, a steering assembly controlled by the handlebar, a rear wheel connected to the frame and two front wheelsconnected to the frame. The steering assembly is connected between the two front wheels and the handlebar and comprises driving rod connected to the two front wheels, a connecting rod with two ends hinged to the two driving rods, a steering shaft connected to the handlebar and rotating with the handlebar, a swing rod fixed to the steering shaft and a steering yoke connected with the swing rod anda connecting rod, a sliding groove is formed in the swing rod, and a slide block sliding along the sliding groove is formed in the top end of the steering yoke. The tricycle is effectively preventedfrom bilaterally turning during steering by arranging two front wheels, is more stable in riding and ensures the life and safety of a rider. In addition, the double front wheels of the tricycle are more flexible in steering, a steering column rotates through the swing rod driving the steering yoke, and the tricycle is simple and firm in structure and long in service life and meanwhile is low in production cost.

The invention belongs to the technical field of electric furnace equipment, and specifically relates to an electrode cylinder for a ferroalloy high-power DC electric furnace, which includes an electrode cylinder body, an electrode connecting seat and a hook, and uniformly arranged electrodes are fixedly connected to the inner surface of the electrode cylinder body Connecting seat; the surface of the electrode connecting seat is provided with heat conduction holes; the upper surface of the electrode cylinder body is hung with hooks; the number of the hooks is two, and the left and right are symmetrically arranged; the two hooks The same suspension rope is connected between them; the lower surface of the electrode cylinder body is connected with an electrode connection seat; through the present invention, the electrode cylinder is effectively connected using a crane to automatically engage and connect. After the connection is completed, due to the electrode cylinder itself Due to the action of gravity, it will be automatically and firmly engaged, and the risk of rollover before the electrode cylinder is welded is reduced, ensuring the life, health and safety of the staff. During the engaging process, there is no need for auxiliary staff, and the work will not be injured in the event of a decoupling accident. personnel.

The invention discloses a method for assisting safe driving, comprising: extracting driving parameter information of a vehicle, environment information around the vehicle, and user's physical state information in real time; judging whether the vehicle has an unsafe driving behavior based on the driving parameter information; If so, according to the preset prompt rules, the prompt information corresponding to the unsafe driving behavior will be sent to the intelligent interactive device in real time; combined with the environmental information around the vehicle and the physical state information of the user, for the driving trip For the unsafe driving behavior, update the driving behavior score of the vehicle in the driving trip according to preset scoring rules, and send the driving behavior score to the smart device to evaluate the driving behavior in the driving trip driving behavior.

The invention discloses an integrated pipe cutting machine. The integrated pipe cutting machine comprises a machine tool head box and a machine tool tail box, wherein the machine tool head box and themachine tool tail box are fixedly connected; a feeding part, a cutting part and a control electric box are arranged on the outer plane of the top of the machine tool head box, and the feeding part, the cutting part and the control electric box are fixedly connected with the machine tool head box; a second supporting seat is arranged on the side, far away from the machine tool head box, of the outer plane of the top of the machine tool tail box, the second supporting seat is fixedly connected with the machine tool tail box, and a supporting cross beam is arranged on the second supporting seat;and the other end, far away from the second supporting seat, of the supporting cross beam is fixedly connected with the feeding part, a positioning and clamping part is arranged on the supporting cross beam, and the positioning and clamping part is fixedly connected with the supporting cross beam. By the adoption of the scheme, a machine tool is easy and convenient to operate, and a worker can carry out cutting only by carrying out simple operation on one side of the machine tool head box, so that contact between the worker and a cutting tool is avoided, and life health and safety of the worker are guaranteed.

The invention discloses a drilling blowout prevention efficient deslagging device and a using method thereof.The drilling blowout prevention efficient deslagging device is characterized in that a first connector is connected with an extraction system through an extraction main pipe, the lower end of the right side of a box body is connected with a plurality of air inlet connectors, the air inlet connectors are all connected with a drilling machine orifice, and the lower end of the left side of the box body is connected with a first deslagging pipe; the outer side of the first slag discharging pipe is connected with a connecting pipe, the outer side of the connecting pipe is fixedly connected with a first one-way valve, the other end of the connecting pipe is connected with the tank body, the lower end of the right side of the tank body is connected with a second slag discharging pipe, and the outer side of the second slag discharging pipe is fixedly connected with a second one-way valve. Dust generated in the drilling process can be effectively removed, continuous extraction and automatic cleaning are achieved, the blowout prevention requirement is met, it is guaranteed that a pipeline is unblocked all the time, the multiple functions of blowout prevention, dust prevention and slag removal in drilling are integrated, and the practicability of the device is greatly improved.

This application relates to the field of fire prevention and smoke exhaust, in particular to a fireproof structure for smoke prevention and exhaust ducts, which includes several sections of heat insulation layers wrapped on the outer surface of smoke prevention and exhaust ducts, several sections of heat insulation layers, etc. Long installation; each section of the heat insulation layer is provided with a number of fixing devices for fixing the heat insulation layer, and the number of fixing devices are evenly distributed on the corresponding smoke exhaust duct. The present application has a better effect of realizing the protection of people's life safety.

The invention discloses a medical pneumothorax needle. The medical pneumothorax needle comprises a containing cavity, wherein the top of the containing cavity is provided with an opening, the bottom of the containing cavity is provided with a through hole, the lower portion of the containing cavity is provided with a piercing tube, the lower end of the piercing tube is provided with the sharp end, a detachable buckle ring is tightly installed between the containing cavity and the piercing tube, an airflow one-way valve is arranged in the containing cavity, the bottom of the one-way valve is downwards provided with a hollow exhaust tube in a communicated mode, the exhaust tube downwards penetrates through the through hole and is coaxially arranged inside the buckle ring and the piercing tube, the lower end of the exhaust tube does not exceed the sharp end of the piercing tube, and the distance between the exhaust tube and the bottom of the sharp end is smaller than the height of the buckle ring. The medical pneumothorax needle solves the technical problem that pneumothorax emergency instruments which are convenient to carry and suitable for being used in emergency do not exist.

The invention relates to the field of medical instruments, in particular to a special oral-nasal negative-pressure air extractor capable of preventing viruses from overflowing and used for tracheal intubation of patients infected with new coronaviruses. The special oral-nasal negative-pressure air extractor comprises a frame body, an oral ventilation ring, an airway strip and a bandage, wherein the frame body is provided with a mouth vacancy at the mouth position of a patient, and is provided with a nose groove structure at the nose position of the patient; nose through holes are formed in thenose groove structure; a mouth ventilation ring is arranged at the part, located at the periphery of the mouth vacancy, of the outer side surface of the frame body; a hollow air passage in the mouthventilation ring is an annular air passage; a plurality of air holes are formed in the inner ring surface of the mouth ventilation ring; a nose air passage communicated with the nose through holes andthe annular air passage is formed in the mouth ventilation ring; the airway strip is arranged on the mouth ventilation ring and / or the frame body; two ports of the airway strip are communicated withthe annular air passage; an air receiving port is formed in the annular air passage; and two ends of the bandage are arranged on the frame body. According to the air extractor, air with viruses exhaled by the patient is sucked away through the air holes in the inner ring of the mouth ventilation ring and the nose air passage connected with the nose through holes.

The invention discloses a construction ventilation method for a large and long tunnel. Before the car crossing between the left hole and the right hole of the tunnel is penetrated, the tunnel adopts apress-in ventilation method and the entrances and exits of the left and right holes are externally provided with local ventilators, and the local ventilators can supply air to each face of the tunnelrespectively; meanwhile, in order to ensure the flow stability of the airflow in the tunnel after the crosswalk of the tunnel is penetrated, a jet fan is installed at intervals of the left or right hole of the tunnel to guide the airflow direction and blow off the accumulated gas in a local section. The method provided by the invention fully utilizes the left and right holes and the intermediatecar crossing of the parallel construction, reduces the convection and vortex of the air in the hole by adopting the method of single hole intake and single hole exhaust, improves the ventilation efficiency, and ensures the life health safety of construction worker maximally.