32results about How to "Easy to work safely" patented technology

The invention relates to the technical field of mechanical processing equipment, and discloses a 3D weld seam detection integrated intelligent welding system, including a mounting base, an arc-shaped plate, and an intelligent welding gun head and a weld seam detection probe arranged on the arc-shaped plate. The upper end of the shaped plate is vertically fixedly connected with a connecting rod, one side of the arc-shaped plate is fixedly connected with a housing through a mounting hole, and a cleaning mechanism is connected in the housing, and a rectangular tube is fixedly connected to the center of the upper end of the mounting seat, and a rectangular tube is provided in the rectangular tube. Electric push rod, one end of the electric push rod is fixedly connected with the upper end of the mounting base, the other end of the electric push rod is fixedly connected with a rectangular rod, and the upper end of the rectangular rod extends to the outside of the rectangular tube and is fixedly connected with a cross bar. The 3D weld detection integrated intelligent welding system can quickly clean the coating on the welding surface of the workpiece when welding the workpiece, and can also promote the rapid dissipation of heat at the welding part of the workpiece during cleaning, which is conducive to the stable operation of the flaw detection equipment.

The invention relates to the field of gearboxes, and specifically discloses a detection device and a detection method for lubricating oil inside a gearbox, including a sampling mechanism and a testing mechanism, and the sampling mechanism and the testing mechanism are both installed on a housing outside the gearbox ; The sampling mechanism is installed on the top side of the shell, and the testing mechanism is installed on the middle side of the shell. The accumulation of impurities on the filter increases the weight of the filter, and the pressure of the filter on the bottom support rod increases. The pressure sensor on the top of the support rod measures the pressure value, and the change of the weight of the filter is obtained through the change of the pressure value. In this way, the weight of impurities filtered out by the filter screen can be known, and the content of impurities inside the lubricating oil can be judged by the weight of the filtered impurities, so as to judge the quality of the lubricating oil during use.

The invention relates to the field of gas detection, in particular to a portable infrared gas alarm apparatus. The alarm apparatus solves the problems that the sensitivity and accuracy of the existinginfrared gas detection device can not reach ideal requirements and the like. The alarm apparatus comprises a detection unit and a signal processing circuit which are arranged in a box body that is provided with a function button, a display, an alarm device and an alarm indicator; the box body is also provided with a venthole which is opposite to the detection unit directly; the detection unit isa gas collector which is internally provided with an infrared light source and an infrared detector; the gas collector comprises a cylinder with a through hole arranged in the side wall, and end covers which are respectively fixed at the two ends of the cylinder; and the inner surface of the end cover is the surface of a concave mirror; the infrared light source and the infrared detector are respectively fixed with the inner surfaces of the two end covers by a supporting body and arranged at the focus positions of the concave mirror surfaces of the inner surfaces of the end covers. The detection unit has the advantages of simple, reasonable and compact structure, easy processing and convenient carryover; and the whole alarm apparatus has the advantages of high sensitivity, fast response speed, good stability, high measuring accuracy, and wide application range.

The invention discloses a composite insulating cross arm comprising a mandrel. The mandrel is of a cylindrical structure, and a rubber sheath is arranged on the outer surface of the mandrel. The two ends of the mandrel are provided with cylinder clamps connected in a pressed mode. One ends of the cylinder clamps are provided with cavities which are connected with the mandrel in matched and sleevedmodes, and the other ends of the cylinder clamps are closed. The side wall of the closed end of one of the cylinder clamps is provided with a first connecting fitting fixedly connected with the cylinder clamp, an oval through hole is formed in the middle of the first connecting fitting, an arc-shaped groove is formed in the middle of the top end of the first connecting fitting, convex lugs are arranged on the two sides of the top of the first connecting fitting, and the side wall of one of the convex lugs is fixedly connected with the corresponding cylinder clamp. The side wall of the closedend of the other cylinder clamp is fixedly connected with one end of a second connecting fitting which is overall in an sunken arc-shaped cylinder shape, the other end of the second connecting fittingis provided with symmetrical arc-shaped convex lugs, and the side wall of the second connecting fitting is provided with a locking assembly fixedly connected with the second connecting fitting.

The invention relates to a dangerous goods transport vehicle dynamic monitoring method and an early warning device. The method comprises the following steps: (1) arranging the early warning device which comprises a collision, rollover and temperature and pressure early warning module, an early warning arithmetic and a threshold value; (2) acquiring the acceleration, the dip angle, the temperature / pressure and image signals of a goods wagon; (3) carrying out calculation on each signal and comparing the signal with the preset threshold value and sending out a corresponding alarm command; (4) displaying alarm information and sending the alarm information to a remote monitoring center through a global position system / general packet radio system (GPS / GPRS); (5) after the alarm is completed, returning to the step (2); and (6) carrying out real-time monitoring on a goods state and the alarm information by a driver through displaying. The corresponding early warning device comprises the GPS / GPRS, cameras, a card reader, a triaxial acceleration sensor, a display screen, an artificial alarm, a buzzing alarm, a temperature / pressure sensor, a dip angle sensor, a secure digital (SD) card storage and an electronic control unit which comprises a microprocessor. The collision, rollover and temperature and pressure early warning module is arranged in the microprocessor. The invention can be used for carrying out real-time monitoring on collision, rollover and temperature and pressure, thereby being beneficial to driving safety and rescue operation.

The invention discloses an application system based on quantum keys, including institutional key management centers established at various institutions, which provide unified quantum key services for application security and communication security; national key management centers , communicate with the institutional key management centers of each institution, and are responsible for distributing and issuing quantum keys or quantum key IDs to each institution; the two institutional key management centers that need to communicate with each other need to initiate the same time to the national key management center to obtain the same A request for a quantum key. The present invention breaks through the barriers between the physical quantum network and the virtual application network, so that the high security feature of the quantum key is further extended to the business field, and promotes the further development of information security work; the use of the high security of the quantum network solves the problem of synchronous key distribution in the business field It solves the problem of the authority, credibility and security of the key source, and further guarantees the confidentiality and tamper resistance of business information transmitted in the untrusted network.

The invention relates to a negative pressure drilling system preventing over-limit gas. The negative pressure drilling system comprises a hollow drill rod, a hollow bit, a hydraulic rig, a support, and a drainage system. Both the hollow bit and the hollow drill rod are provided with suction ports. The rear end of the hollow drill rod is connected with a dust suction pipeline through a rotary connector. The dust suction pipeline is connected ith an air inlet of a suction box. An air outlet of the suction box is connected with a suction mechanism. The suction mechanism is connected with an air inlet of an explosion-proof spray dedusting box. An explosion-proof spray air outlet is connected with the drainage system through an exhaust pipe. A sprayer is disposed in the explosion-proof spray dedusting box. The negative pressure drilling system is capable of sucking through a front central hole of the hollow bit and through the suction hole on the side wall of the hollow drill rod, and the suction hole on the side wall of the hollow drill rod discharges most of dust, so that suction and dedusting are improved greatly, dedusting flow is smoother and dedusting is more efficient. The explosion-proof spray dedusting box assists in further dedusting and spray explosion proofing and accordingly the drainage system can operate safely.