12results about How to "Convenient on-off" patented technology

The present invention relates to a relay on / off detection system and method for a new energy vehicle charging protection device in the field of circuit detection technology, based on a dual-relay charging device comprising an L-pole relay and an N-pole relay. A first feedback circuit is set between the input end of the L-pole relay and the output end of the N-pole relay, and a second feedback circuit is set between the input end of the N-pole relay and the output end of the L-pole relay. By detecting the conduction and cutoff of these two circuits, the on / off of the two relays can be determined. This allows the system to self-detect relay failures and increase user safety.

The application relates to the field of discharging of electric vehicles, in particular to an electric vehicle charging socket adapter which comprises a shell, one end of the shell is provided with a five-hole socket, the five-hole socket comprises a base and a panel, the base is installed in the shell, the panel is installed on the base, a protection device is arranged on the base, the protection device comprises two plug protection assemblies and a three-plug protection assembly which are independent of each other, two-plug micro switches and three-plug micro switches are further arranged on the base, the two-plug protection assemblies are used for controlling the work of the two-plug micro switches, the three-plug protection assembly comprises a three-plug protection plate and a three-plug reset spring, the three-plug protection plate is slidably installed on the panel, one end of the three-plug reset spring is connected with the three-plug protection plate, and the other end of the three-plug reset spring is connected with the panel, the three-plug protection plate is provided with a three-plug sliding channel, and the three-plug protection plate is used for controlling the work of the three-plug micro switches. The application improves the problem of insufficient power supply of the adapter to the electric appliance in the traditional mode, and can achieve the effect of providing sufficient power for the electric appliance.

The utility model belongs to the technical field of textile machinery, and particularly relates to a dust hood for textile, which enables a worker to flexibly adjust the direction and the position of a dust hood head through the matching of a valve component, an oil cylinder, a piston rod and a support rod, so that the dust hood can more effectively capture dust, improve dust collection efficiency, reduce dust concentration in a workshop and improve the working environment. Meanwhile, the valve assembly is matched with the oil cylinder and the piston rod, so that the dust collection cover head can be quickly adjusted and fixed, angle deviation is not prone to occurring in the fixing process, and production continuity and stability are guaranteed.

The utility model provides a leakage-proof hydraulic valve, and belongs to the technical field of hydraulic valves. The leakage-proof hydraulic valve comprises a valve pipe, a pressure distributing valve is arranged at the top of the valve pipe, connecting sleeves are arranged at the two ends of the valve pipe, the valve pipe comprises a pipe body, connecting rings are fixedly installed at the two ends of the pipe body, leakage-proof grooves are formed in one sides of the connecting rings, each connecting sleeve comprises a hexagonal thread sleeve, a mounting sleeve is arranged at one end of each hexagonal thread sleeve, and a sealing ring is arranged at the other end of each hexagonal thread sleeve. The outer sides of the two ends of the pipe body are sleeved with the mounting sleeves, the mounting sleeves are rotationally connected with the pipe body, threads are formed in the inner sides of the hexagonal threaded sleeves, the connecting rings are arranged on the inner sides of the mounting sleeves, and the anti-leakage rings are fixedly installed on one sides of the mounting sleeves and connected with the anti-leakage grooves in a clamped mode. And the service life can be prolonged, and the practical value is high.

A heat pump dual-use system for cooling and heating belongs to the technical field of heat pump units. The invention is characterized in that it comprises a heat pump unit, wherein the evaporator and the condenser of the heat pump unit are both shell and tube heat exchangers, the tube side inlet of the evaporator is connected to a hot water input pipe (16), the tube side outlet of the evaporator is connected to a cold water output pipe (18), the tube side inlet of the condenser is connected to a cold water input pipe (20), and the tube side outlet of the condenser is connected to a hot water output pipe (22). The heat pump unit of the heat pump dual-use system for cooling and heating absorbs heat from hot water through the evaporator and generates cold water of a specific temperature as required. The heat pump unit utilizes the absorbed heat to heat the cold water through the condenser to generate hot water of a specific temperature, thereby recovering the waste heat and being able to generate hot water of a specific temperature and cold water of a specific temperature, thereby avoiding heat waste and environmental damage, and being able to generate required hot water and cold water, and being easy to use.

The invention relates to the technical field of water purification equipment, in particular to air tightness detection equipment and an air tightness detection method for a filter element, and aims to solve the problem of low air tightness detection efficiency of the filter element caused by long time consumption and large manpower consumption of the existing air tightness detection of the filter element. The air tightness detection equipment comprises a detection table, a detection pool and a detection device, the detection device comprises a tool assembly, a detection assembly and a driving mechanism, the tool assembly is used for loading a to-be-detected filter element, and the detection assembly is arranged to be capable of inflating a cavity to detect the air tightness of a shell of the to-be-detected filter element. The detection assembly is further arranged to be capable of detecting whether the interior of the to-be-detected filter element is bypassed or not. According to the invention, not only can the air tightness of the shell of the filter element be detected, but also whether the interior of the filter element is bypassed can be detected, the detection efficiency and the detection convenience are greatly improved, and the filter element can be automatically immersed into the detection pool through the driving mechanism, so that the manual operation is reduced, the manpower is saved, and the air tightness detection efficiency of the filter element is improved.

The utility model discloses mechanical power switch, including power main part, and power main part includes casing and backplate, is equipped with the moving plate on the casing, is equipped with the shift lever on the top of moving plate, is equipped with the limiting device between shift lever and casing, is equipped with the moving block on the bottom of moving plate, is equipped with the moving rod on the moving block, is equipped with the adjusting block in the casing and slides, is equipped with the moving groove of cooperation with moving block on the adjusting block, still is equipped with the inclined groove of cooperation with moving rod, the bottom of adjusting block is equipped with the conducting plate, is equipped with the power cord and connecting line on the backplate, electrically connected and is equipped with the first conducting block on the power cord, electrically connected and is equipped with the second conducting block on the connecting line, through moving plate drive moving block and moving rod remove, with the cooperation of moving groove and inclined groove on the adjusting block, adjust the position of adjusting block, through adjusting block drive conducting plate remove, when conducting plate and first conducting block and second conducting block contact, realize the intercommunication of power cord and connecting line, control the on-off of power supply.

The utility model relates to the technical field of transformer box bodies, in particular to a transformer box body for wind power generation, which comprises a heat dissipation assembly, a warning assembly and a water passing assembly, the heat dissipation assembly comprises a shell, a plurality of heat dissipation fins and a refrigerator, the heat dissipation fins are arranged on the shell, the refrigerator is arranged on the shell, and the warning assembly is arranged on the shell. The water passing assembly comprises a first valve, a transmission box, a third valve, a transmission pipe and a filter element, one end of the transmission box communicates with the first valve, the other end of the transmission box communicates with the third valve, the third valve communicates with the transmission pipe, the transmission pipe communicates with the water inlet end of the refrigerator, and the filter element is installed on the transmission box and used for filtering transmitted water. According to the utility model, the safety performance at the housing is improved, the occurrence of water leakage at the heat dissipation part is reduced, the filtering part is convenient to clean, and the safety is high.

The present invention relates to the field of sewage filtration equipment, specifically a UV-LED photocatalytic film rotary reactor, including a body and a cleaning device, the cleaning device including a shell, a motor, a rotating drum, a rotating shaft, an LED light board, a spiral blade and a photocatalytic film, one end of the shell is fixedly connected to the motor, the motor drive shaft is fixedly connected to the rotating drum, the rotating drum is rotatably connected to the shell, the inner wall of the rotating drum is fixedly connected to the rotating shaft, a No. 1 through hole is provided inside the rotating shaft, an LED light board is fixedly connected to the rotating shaft, and the LED light board is located in the No. 1 through hole, the outer surface of the rotating shaft is fixedly connected to the spiral blade, the outer surface of the spiral blade is fixedly connected to the photocatalytic film, and the material of the rotating shaft and the spiral blade is a wear-resistant transparent material. The present invention drives the rotating shaft to rotate by a motor, and the auger structure formed by the rotating shaft and the spiral blades fully contacts and reacts the harmful substances in the sewage with the photocatalytic film on the spiral blades to achieve a better cleaning effect.

The utility model relates to the technical field of detection switches, in particular to a high-head high-stroke detection switch, which comprises a base and a terminal, two ends of the terminal penetrate through two sides of the base, a rubber cover is embedded at the top end of the base, the rubber cover is connected with the base in a locking manner through a locking assembly, a rubber head is vertically arranged in the rubber cover in a penetrating manner, and the rubber head penetrates through the terminal. The bottom end of the rubber head is connected with a pressure spring in an embedded mode, the pressure spring is kept stable through an internal positioning assembly of the base, contact pieces are symmetrically arranged on the outer side of the bottom end of the rubber head, and the contact pieces make contact with the terminals and enable a circuit to be connected when pressed downwards. The rubber cover is clamped on the base through the bending part and the protruding part to keep stable, the rubber head ascends or descends in the base through guiding of the rubber cover, and a pressure spring is arranged in the base so that the rubber head can spring back, the contact piece can be separated from the terminal, and connection and disconnection of a circuit can be completed.

The utility model discloses a blood sampling device which comprises a pressing valve assembly used for controlling circulation of a drainage tube and a guide sleeve used for guiding a connecting end to be connected with a blood sampling tube. The pressing valve assembly is arranged on the drainage tube and comprises a fixing sleeve and a pressing block, a round hole is formed in the side face of the pressing block, the drainage tube is sleeved with the pressing block through the round hole, and a flow stopping groove is formed above the round hole of the pressing block; and the guide sleeve is arranged at the connecting end. The inside of the drainage tube is controlled to be in a closed state, excessive blood cannot be brought out due to negative pressure in the tube when the blood collection tube is pulled out, and the blood is prevented from splashing; if blood needs to be collected for multiple times, after a new blood collection bottle is inserted into the connecting end, the pressing block is jacked upwards, the drainage tube conducts drainage again, and the drainage tube is controlled to be switched on and off conveniently; the guide sleeve capable of being detachably connected is arranged at the connecting end, the coaxiality of the connecting end and the blood collection tube is positioned through the guide sleeve, the accuracy of the angle and force of the connecting end penetrating into the blood collection tube is improved, and the situation that the blood collection tube leaks air is avoided.