37results about How to "Guaranteed normal entry and exit" patented technology

The invention relates to the technical field of hydrogen storage equipment, and particularly discloses a solid-state hydrogen storage device with high heat exchange characteristics. The solid-state hydrogen storage device comprises an outer tank, wherein an air inlet and outlet valve is arranged at the top of the outer tank, a plurality of hydrogen storage cylinders are fixed in the outer tank insequence, a gap of 0.5mm-3mm is formed between every two adjacent hydrogen storage cylinders, filter sheets are fixed at two ends of the hydrogen storage cylinders correspondingly, a plurality of heat-conducting partition plates are arranged in the hydrogen storage cylinders along the axial direction of the hydrogen storage cylinders, the plurality of heat-conducting partition plates divide the hydrogen storage cylinders into a plurality of hydrogen storage spaces, and the hydrogen storage spaces are filled with hydrogen storage materials. According to the solid-state hydrogen storage device,the multi-layer storage spaces are adopted, so that more rapid hydrogen absorption can be realized, and the problem of structural damage caused by uneven distribution of the hydrogen storage materialsin a hydrogen storage tank and stress concentration in the prior art is effectively solved; and in addition, the uniform distribution of the hydrogen storage materials enables the distribution of heat generated in a hydrogen absorption process to be more uniform, and the heat can be more rapidly conducted out of the hydrogen storage device.

The invention provides an anti-pollution aging method for putting black tea into a packaging container with a ventilated extraction valve having sealing and filter films and specially designed packaging container for implementing the method, wherein the method comprises the following steps of: a) putting the black tea into the packaging container with the ventilated extraction valve, and keeping the black tea in a sealing state; b) screwing on a first regulation protecting cover of aventilated valve, wherein the ventilated extraction valve comprises a ventilated valve and an extraction valve; c) screwing off a sealing cover of the extraction valve, pumping by a vacuum pump so that the vacuum degree in the packaging container is smaller than or equal to 150-250 Pa, reducing air, dust particles and microorganism carried by the air in the container to least, and screwing on the sealing cover of the extraction valve so as to keep the extraction valve in the sealing state; and d) loosening the first regulation protecting cover of the ventilated valve reversely by screwing, causing the air to pass through a micropore filter film to enter in and out the bag, preventing the particles and microorganism outside from entering into the packaging container, naturally oxidizing the tea to finish the anti-pollution aging so that the tea is more fragrant when the time is longer. The invention also provides the packaging container for implementing the method.

The invention provides a lithium ion battery and a preparation method thereof. The battery comprises an anode film, a cathode film, a diaphragm and an electrolyte, wherein the anode film comprises an anode material, acetylene black and polyvinylidene fluoride; the anode material comprises two layers, namely a core layer and a cage layer; the core layer has higher lithium storage capacity; and the cage layer is a structural layer which is formed by mutual entanglement of carbon fibers, has a loose structure, is internally provided with uniform three-dimensional holes and is integrally cage-shaped. The anode material of the lithium ion battery provided by the invention can be prepared by two methods, namely an electrostatic spinning method and a biological culture method. The surface of the core layer of the anode material of the lithium ion battery is uniformly coated by the cage layer, so that volume change of the core layer in the Li<+> intercalation/de-intercalation process can be effectively relieved and the cycling stability of the lithium ion battery can be maintained.

The invention discloses a chicken house for large-scale and organic cultivation of laying hens. The chicken house comprises a chicken house body, an egg collecting system, a feed feeding system, a fodder feeding system and a manure collecting system, wherein two pieces of shade cloth are vertically and oppositely arranged in the chicken house body in a lifting mode so as to divide the chicken house body into a first area, which is located in the middle of the chicken house body, and two second areas which are located on both sides of the chicken house body; the egg collecting system, the feed feeding system and the manure collecting system are arranged in the first area, and the egg collecting system is used for collecting eggs laid by the laying hens; the feed feeding system is used for conveying feed into the chicken house, and the manure collecting system is used for collecting and processing manure generated in the first area; the fodder feeding system is disposed in the second area and used for adding fodder to the second area. According to the chicken house for large-scale and organic cultivation of the laying hens, through the chicken house, the incidence of the laying hens can be reduced, the drug residues in the eggs can be reduced, and the quality of the eggs can be ensured.

The invention provides perforated floating breakwater units and circular-arc-shaped multilayer perforated floating breakwaters. The perforated floating breakwater units comprise perforated floating breakwater unit base bodies, and through penetrating holes are formed in the floating breakwater unit base bodies. All the perforated floating breakwater units are connected through connecting chains toform the circular-arc-shaped perforated floating breakwaters, the two or more layers of circular-arc-shaped perforated floating breakwaters are arranged outside a protected body, all the layers of circular-arc-shaped perforated floating breakwaters are arranged in a staggered mode, and intervals are reserved among all the layers of circular-arc-shaped perforated floating breakwaters. The circular-arc-shaped arrangement mode is adopted, and thus the good wave absorbing effect on long peak waves and multidirectional short peak waves is achieved; the total length of the breakwaters is decreased,and the breakwaters has good adaptability to islands of various contour shapes; the multilayer staggered arrangement mode is adopted, thus the wave absorbing effect of the breakwaters is further enhanced, and the high reliability under the extreme sea conditions is still achieved; and through the perforated structures, energy dissipation of the waves can be greatly enhanced, and the wave loads borne by the floating breakwaters are reduced.

A steam sweeper possessing spiral device, includes a push rod, a junction piece disposed under the push rod, a stream generating part hinged with the junction piece arranged under the junction piece, a power line used for supplying power to the stream generating part. The steam sweeper also includes a winder which can automatically wind the power line disposed in the junction piece, a power line gateway arranged on the profile of the junction piece for passing in and out the power line. Because the winder is disposed inside the junction piece, the rolled power line is easily preserved. The power line is disposed on the side of the junction piece to ensure not to affect the working when the power line is pulled out.

The invention provides a parking lot management system of PLC control. The system comprises an IC card reader, a computer system, a PLC, a parking stall display board, a barrier-gate front inspection module, a barrier-gate rear inspection module, a parking stall sensor and a barrier gate. The computer system is formed by a computer, a communication line and configuration software and is used to mainly complete functions of IC card verification, temporary parking IC card management, control signal receiving and sending, data statistics and form printing. When receiving a control signal of a central computer, the PLC controls opening and closing of the barrier gate. The barrier-gate front inspection module and the barrier-gate rear inspection module are used to realize an anti-smashing vehicle function, which means that when the vehicle is under the barrier gate, a brake bar does not drop; and after the vehicle is left, the brake bar is automatically dropped. According to the control signal sent by the central computer, the PLC control makes logic determination and a corresponding parking stall navigational lamp is opened on the parking stall display board. The parking stall sensor sends a signal that the vehicle arrives at an assigned parking stall to the central computer and the central computer displays parking stall state information.

The invention provides closed disinfecting and cleaning equipment for a mixing container for an intravenous medicine blending center. The closed disinfecting and cleaning equipment for a mixing container for an intravenous medicine blending center comprises a mixing tank; a U-shaped supporting block arranged above the mixing tank; two movable grooves both formed in the U-shaped supporting block; two vertical screw rods rotationally mounted between the top inner walls and the bottom inner walls of the corresponding movable grooves correspondingly, the top ends of the corresponding vertical screw rods extending out of the U-shaped supporting block; a first motor fixedly mounted at the top of the U-shaped supporting block, with an output shaft fixedly connected with the top end of the corresponding vertical screw rod; and two moving blocks. The closed disinfecting and cleaning equipment for the mixing container for the intravenous medicine blending center has the advantages that the use is convenient, the cleaning efficiency of the mixing tank is improved, and the cleanliness of the mixing tank is ensured.

The invention discloses a semi-direct drive type transmission chain for a tidal current energy unit and the tidal current energy unit comprising the same, and belongs to the field of tidal current energy unit equipment. The transmission chain comprises a hub, a gear box, a connecting cabin, a generator and a tail cabin which are connected in sequence, the hub and the gear box are connected througha main shaft, a motive seal is arranged at the joint between the hub and the gear box, wherein the gear box is a semi-direct drive type gear box; and a pitch changing mechanism is installed on the hub, and the pitch changing mechanism can achieve the pitch changing angle ranging from 0 degree to 270 degrees. According to the semi-direct drive type transmission chain for the tidal current energy generator set, the requirements of tidal current energy power generation are met, pitch changing is accurately controlled, so that accuracy and safety are ensured, the failure risk of the unit is effectively reduced and pitch changing is accurately controlled, so that safe and reliable operation of the unit is realized.

The invention discloses an apparatus for multi-dimensional measurement of heavy metal content, which comprises a cloud platform information processing end, a multi-depth sample collecting apparatus, an Android mobile phone control end, a microprocessor main control module, a power supply module, and an electrochemical sensor module. The cloud platform information processing end receives data sentby the Android mobile phone end to realize a cloud storage function. The multi-depth sample collecting apparatus comprises five parts such as an internal sample testing area and an outer side samplingaccess port. The Android mobile phone control end adopts the form of a two-stage interface, which is a Wi-Fi selection interface and a motor control and display interface. The microprocessor main control module adopts an STM32F407 chip and is powerful in function. The power supply module adopts a lithium battery, which is small in size and is green and environment friendly. The electrochemical sensor module is attached with a three-electrode test module, a constant potential module, and a circuit self-check and active shielding module. According to the apparatus for multi-dimensional measurement of heavy metal content, the multi-depth detection can be achieved on the content of heavy metal ions in rivers and lakes, information can be fed back to a cloud platform in time, so that the purposes of information processing and storage are realized, and the apparatus is suitable for popularization and use.

The invention discloses household tea bar type drinking water equipment which comprises a drinking water machine body, an inner cavity of the drinking water machine body is provided with a containing cavity used for containing a cup body and a purified water barrel, and the front face of the drinking water machine body is provided with a containing bar counter and a glass door which are used for sealing the cavity of the drinking water machine body; a rotary faucet is installed at the top of the drinking water machine body, and the bottom end of the rotary faucet extends into the cavity in the drinking water machine body. A nested rear-mounted machine cover is arranged outside the drinking water machine body, so that the rear-mounted machine cover is convenient to disassemble and assemble, whether breeding objects exist in a small water suction pump body or not can be observed in the follow-up process, meanwhile, the small water suction pump body is convenient to clean in the follow-up process, meanwhile, the small water suction pump body capable of being disassembled is arranged in the water pumping cavity in the drinking water machine body, and the small water suction pump body can be conveniently disassembled and assembled for cleaning.

The invention discloses a ticket checking gate machine based on a ticket business integrated management system. The ticket checking gate machine comprises a first machine base, a second machine base, a third machine base and a gate body, wherein the gate body is located between the first machine base and the second machine base, a transmission device is arranged between the second machine base and the third machine base, the gate body comprises a top plate, a bottom plate and a baffle plate, the top plate is L-shaped, the top plate is welded to the second machine base, two ends of the bottom plate are fixedly welded to the first machine base and the second machine base respectively, the baffle is fixed to the top plate and located between the top plate and the bottom plate, a connecting disc is embedded in the bottom plate, one end of the baffle is welded to the connecting disc, and the other end of the baffle is connected with a transmission end of a second motor; and holding rods are arranged on plate surfaces of the two ends of the baffle plate. According to the ticket checking gate machine, a rotary in-out mode is adopted, single-person in-out of the gate body is effectively guaranteed, and the situation that one ticket and multiple persons enter and exit due to a gate body of a semi-open door structure is avoided.