476results about How to "Avoid fragile" patented technology

The invention provides a treatment method for circulating water sewerage and reverse osmosis concentrated water and equipment thereof. The treatment method includes: firstly adding a softening medicament into sewerage, filter-pressing the sludge after precipitation, burying the sludge or recycling by resource utilization; filtering and nanofiltering the softened and precipitated sewerage; then electrodialysis treating the nanofiltered sewerage; finally, evaporating and crystallizing the collected nanofiltration concentrated water and the electrodialysis concentrated water, and discharging the crystal substance to landfill, wherein the crystal water and electrodialysis water is used as make-up water for circulating water or as pretreatment water for desalinated water. Accordint to the invention, the double membrane method superposition process of nanofiltration and electrodialysis as well as the steam crystallization technology are empolyed, scaling and wearing of the membrane modules are prevented, regular cleaning is not needed, running time is long and stable, sewerage recovery is improved, the running costs of sewerage treatment is reduced, sewerage recycling is realized, no secondary pollution occurs; and the processing equipment is set reasonably and efficiently, and is stable in running and long-lasting.

The invention discloses a well frame, an elevator with well frame and a well frame mounting method. The well frame comprises a frame top component, a frame bottom component and a frame middle component; a vertical opening is formed in the frame middle component; a transitional section mounting block is arranged above a fixed section mounting block; the frame middle component is divided into a plurality of transitional section mounting blocks and fixed section mounting blocks, all of which are orderly connected together; the transitional section mounting block is divided into two transitional sidewall frames and two transitional rear wall frames; the fixed section mounting block is divided into two fixed sidewall frames and two fixed rear wall frames; the transitional rear wall frames and the fixed rear wall frames are all opposite to the vertical opening; each of the transitional sidewall frames, the transitional rear wall frames, the fixed sidewall frames and the fixed rear wall frames is correspondingly provided with a well wallboard; the well wallboard is a PC board. The well frame is mounted on the elevator to from the elevator with the well frame; the well frame is low in overall weight, convenient to mount, high in safety performance, and widely applied to passenger elevators.

The invention discloses a remote control method, a controlled method and a related device which are used for reducing the complexity of a multi-key remote controller and prolonging the service life of the remote controller. The remote control method comprises the following steps of: sending a request message to controlled display equipment after a touch pad remote controller acquires a touch action, wherein the touch action can be triggered by a user at any position of a common touch area of the touch pad remote controller; determining that the controlled display equipment is powered on after a corresponding feedback response message is received within preset time, or determining that the controlled display equipment is powered off; when the controlled display equipment is powered on, determining a touch event corresponding to the acquired touch action and the parameter value of a preset parameter of the touch event; or when the controlled display equipment is powered off, determining whether the touch event corresponding to the touch action is a power-on event or not; and sending the identification of the determined touch event, the parameter value of the preset parameter of the touch event or the identification of the power-on event to the controlled display equipment.

The invention provides an automatic door lock, comprising a lock shell having a dead bolt hole molded with dead lock hole; a lock assembly installed on the lock shell panel and the lock shell bottom panel corresponding to a molded lock installation hole; a bolt mechanism installed in the lock shell capable of moving along the direction perpendicular to the lock shell panel; a locking control mechanism for controlling the bolt in the bolt mechanism extruding from and retracting into the panel; and a bolt locking mechanism matched with the door handle operating mechanism. The automatic door lock implements engagement and disengagement of the stop member with a fixed stripe and a movable stripe by coupling of the fixed and the movable stripe, the stop member is capable of engaging with the fixed and the movable stripe at different positions, incomplete unlocking operation due to extrusion of a bolt partially retracted into the shell is prevented.

The invention relates to a prefabricated sandwich thermal-insulation laminated wallboard. The wallboard is characterized by comprising an inner prefabricated wallboard, an outer prefabricated wallboard, a thermal-insulation layer (2) located between the inner prefabricated wallboard and the outer prefabricated wallboard, and a thermal-insulation connecting piece, wherein the inner prefabricated wallboard and the outer prefabricated wallboard are poured with longitudinal and transverse tensioned bar plane frames as skeletons; the thermal-insulation connecting piece passes through the inner prefabricated wallboard, the outer prefabricated wallboard and the thermal-insulation layer (2) in an embedded way; and the thermal-insulation layer (2) is a foamed thermal-insulation material and is poured between the inner prefabricated wallboard and the outer prefabricated wallboard. According to the invention, the thermal-insulation material overcomes the shortcomings of great needs of labor and low automation degree of the traditional prefabricated sandwich thermal-insulation wallboards through one-shot injection in a factory and adequate filling and compacting of a cavity in virtue of physical and chemical changes of the material; meanwhile, the thermal-insulation material and the contact surface of the inner and outer prefabricated wallboards are effectively bonded together, so rain water is prevented from intruding through gaps produced by stripping of the inner and outer prefabricated wallboards and is thus prevented from influencing the thermal insulation effect of the thermal insulation layer.

The invention discloses a glass heating graphite mold and a production method thereof. The mold comprises a front mold and a rear mold, wherein the front mold comprises a front mold base and a front mold core made of a graphite material; the rear mold comprises a rear mold base and a rear mold core made of the graphite material; a cavity matched with the front mold core is formed in the front mold base; the front mold core is arranged in the cavity of the front mold base; a cavity matched with the rear mold core is formed in the rear mold base; the rear mold core is arranged in the cavity of the rear mold base; intermediate areas of opposite surfaces of the front mold core and the rear mold core are three dimensional curved surfaces suitable for processing to obtain hot bending glass during mold closing; edge areas of the opposite surfaces of the front mold core and the rear mold core are respectively provided with a plurality of supporting insert via holes; supporting inserts are arranged in the supporting insert via holes; when the mold is closed, the supporting inserts, which are oppositely arranged, on the front mold core and the rear mold core, make contact with one another, so that the effects of positioning and supporting the mold cores are realized, and the pressures of the mold cores are borne. According to the glass heating graphite mold disclosed by the invention, large-scale mass production is easily realized while the molding quality of the graphite mold is improved.

The invention provides a turning-milling combined machine tool and a spindle locking device thereof. The spindle locking device comprises end face tooth locking devices arranged in a spindle box and close to the outer side of a second bearing and a conical surface locking device arranged in the spindle box and close to a first bearing, the conical surface locking device comprises a fixed locking annular block fixed on a spindle and a movable locking annular block capable of sliding axially along the spindle, the periphery of the fixed locking annular block is a conical surface, and an inner hole at one end of the movable locking annular block toward the fixed locking annular block is a conical surface. When the turning-milling combined machine tool is in a turning state, the end surface tooth locking devices are engaged mutually, so that the conical surface locking device achieves locking, and locking of the spindle is ensured through the two locking mechanisms. When the spindle is in a milling state, the two locking mechanisms relax simultaneously, and rotation of the spindle can be achieved. The spindle locking device is high in accuracy, good in manufacturability and simple in structure.

The invention discloses a management method and device for an electric automobile low-tension battery. The management method comprises steps that a power supply management system is regularly wakenedup; voltage detection is conducted to the low-tension battery by the wakened-up power supply management system and whether electricity supply is required is detected; if required, a mode of the electric automobile is detected; if the mode is a trickle-charge mode, a vehicle-mounted battery charger is started, so electricity can be supplied to the low-tension battery by the external power supply; if the mode is a driving mode, a DCDC controller is started and electricity is supplied to the low-tension battery by a power battery; through regular detection to the voltage of the low-tension battery, whether electricity supply is required can be determined according to a detection result; the low-tension battery of the electric automobile can be automatically powered and problems of low-tensionbattery damage and short service life due to long-time electricity shortage when electricity cannot be automatically supplied to the low-tension battery; different electricity supply modes are employed upon different modes; low-tension battery can be effectively protected; and service life of the low-tension battery can be prolonged.

The invention discloses a combined rigid ureteroscope which comprises a rigid ureteroscope body and a tubular sheath which is sheathed outside a tubular part of the ureteroscope body, wherein a starting end of the sheath is tightly attached to the tubular part of the ureteroscope body; the rear end of the sheath is equipped with a locking mechanism; a locking part is arranged between the tubular part and an operation part of the ureteroscope body; and the locking mechanism is matched with the locking part so as to lock or loosen the rigid ureteroscope body and the tubular sheath. By adopting the combined rigid ureteroscope,, the locking mechanism between the ureteroscope body and the sheath can be loosened during operations for examination, diagnosis and treatment of ureter and kidney, the rigid ureteroscope body and the sheath can be separated, and the sheath is left in the ureter and utilized as a channel through which broken stones can be repeatedly taken out for multiple times or the ureteroscope body separately gets in and out of the ureter as well as an operation channel of a flexible ureteroscope, thereby saving the operation procedures, shortening the operation time and improving the operation safety; and moreover, in some operation procedures, the rigid ureteroscope can be used instead to implement projects that must be implemented by the flexible ureteroscope before,thereby avoiding the problems of difficult operation and easy damage of the flexible ureteroscope, and actually realizing safe, effective and low-cost clinical treatment.

The invention discloses a cable tunnel routing inspection flight method for an unmanned aerial vehicle. Along-line flight is involved and comprises the steps that a highlight color with an obvious contrast ratio to a surrounding environment of a cable tunnel is selected, and a guide line with the color is laid in the center of a flight area between a starting point and a terminal point of the tunnel which needs routing inspection; then, a camera is adopted for obtaining a front real-time image, an interest area is cut, and the real-time performance of the system is improved; then, color extraction is conducted, binaryzation is conducted, an image after binaryzation is subjected to morphological filtering, and noise is removed for guide line extraction; finally, the image after binaryzationis scanned, a least square method is used for fitting a straight line, and accordingly the position and posture of next-moment flight of the unmanned aerial vehicle are solved. According to the cabletunnel routing inspection flight method for the unmanned aerial vehicle, a rail does not need to be laid, the guide line with the highlight color only needs to be arranged, so that the routing inspection cost is low, and the problem can be solved that since equipment is placed in a dark and damp tunnel environment for a long time, the equipment is easily damaged.

The invention relates to a flexible multilayer frequency selective surface with a transmission zero point. The invention mainly solves problems that an existing frequency selective surface is large inweight, poor in appearance adaptability and poor in out-of-band selectivity. The surface comprises a top metal patch resonance layer (1), a slotted coupling metal patch middle layer (2) and a bottommetal patch resonance layer (3), wherein each of the top metal patch resonance layer and the bottom metal patch resonance layer is composed of a plurality of Jerusalem cross shapes (11) and fractal shapes (14); the slotted coupling metal patch middle layer is composed of a plurality of square metal surfaces (21), wherein rectangular gaps (22) are formed in the four edges of the slotted coupling metal patch middle layer; two kinds of media (4 and 5) are arranged between the top metal patch resonance layer and the slotted coupling metal patch middle layer, and three kinds of media (6, 7 and 8) are arranged between the slotted coupling metal patch middle layer and the bottom metal patch resonance layer. The surface provided by the invention is high in surface appearance adaptability, good inout-of-band selectivity, light in structure and capable of being used for radomes and electromagnetic shielding.

The invention relates to a multi-barrel magnetorheological damping shock absorber capable of achieving cooperative work. The magnetorheological damping shock absorber comprises at least one first damper and at least one second damper which are arranged on a base in a parallel connection mode, each second damper comprises a second liquid storage cylinder arranged on the base, magnetorheological liquid is contained in the second liquid storage cylinders, second piston assemblies are arranged in the second liquid storage cylinders, the tops of the second piston assemblies are connected with second piston rods, the second piston rods stretch out of the tops of the second liquid storage cylinders and vertically move in the second liquid storage cylinders along with the second piston assemblies, second snakelike magnetorheological liquid channels are formed in the second piston assemblies, the portions, close to the inner surfaces of the second liquid storage cylinders, of the second piston assemblies are provided with second external magnet exciting coils, and the inner surfaces of the second liquid cylinders are provided with multiple sets of permanent magnetic rings with the same magnetic heading. Compared with the prior art, the multi-barrel magnetorheological damping shock absorber has the advantages that the regulating range of tensile resisting and compression resisting is wide, the universality is high, and the damping shock absorber is not prone to be damaged.

This invention relates to a manufacturing method for a huge magnet impedance effect magnet-sensitive device based on micro-electromechanical system (MEMS), which applies MEMS technology to process a double-face oxidized silicon chip to get an aligned symbol carved in double faces so as to increase the aligned accuracy when exposing, applies a quasi-LIGA photo etching technology and micro plating to prepare a zigzag sandwich structure FeNi / Cu / FeNi soft magnet multiplayer membrane material, applies physical etching to remove the substrate to avoid the erosion brought with wet etching and offsets the huge magnet impedance effective curves by selecting suitable magnets to make the magnet-sensitive device to work in the linear zone.

The invention discloses a method for inhibiting the overshoot of LDO output voltage, relates to the technical field of semiconductor integrated circuits, and solves the technical problem that a largecapacitor is required to be used for inhibiting the overshoot of LDO output voltage. According to the method, the output voltage of an LDO is acquired in real time through a voltage acquisition module, and the output voltage is converted into a feedback signal which can linearly change along with the output voltage; an output voltage control module is used for generating a control signal for representing the change of the output voltage based on the feedback signal, and the control signal is used for adjusting the control end of the LDO so as to inhibit overshoot voltage when the output voltage of the LDO contains the overshoot voltage. The invention also discloses a method for inhibiting the overshoot of LDO output voltage. According to the method and the system, the overshoot phenomenonof LDO output voltage can be effectively inhibited, the whole LDO does not need to adopt a large capacitor, the chip area is saved, meanwhile, the whole power consumption of the LDO for inhibiting voltage overshoot is small, and the energy is saved.

An atomizing core comprises a shell provided with a vertically-through containing cavity, a porous body wrapped in the containing cavity of the shell and a heating element arranged on the bottom face of the porous body, the porous body comprises a first surface making contact with atomized liquid and a second surface opposite to the first surface, the first surface is a liquid absorbing surface, the second surface is an atomizing surface, the heating element is arranged on the atomizing surface, the atomized liquid permeates to the atomizing surface from the liquid absorbing surface, the heating element on the atomizing surface is used for heating, and heat is conducted into the porous body to atomize the atomized liquid. The invention further discloses a smoke cartridge.

The invention discloses a system on chip supporting an SIM card function and a method for realizing the SIM card function. The system on chip includes an SIM card VCC detection circuit, an SIM card reset processing circuit, an SIM card clock frequency detection circuit, an SIM card serial data receiving / transmitting circuit, a programmable circuit and a central processing unit (CPU). The system on chip of the invention can not only support an original SIM card function, but can also realize function extension. Compared with an original SIM card, a physical space can be saved, the layout area of a product can be further reduced, the miniaturization of the product can be benefitted; the SIM card function is realized through a non-physical manner; troubles such as poor contact, high possibility of being damaged, card replacement and card change can be avoided; the adaptability of the product can be improved; and requirements of the application of meters in the water conservancy industry, the electric power industry and the like to complex environments such as high-humidity, high-temperature and windy and dusty environments can be satisfied.

The invention relates to an electronic switch for alternating current passing-zero switching. The electronic switch comprises a relay connected with a load, a relay drive circuit, a microcontroller circuit and an alternating current signal detection power circuit, wherein the input end of the alternating current signal detection power circuit is connected with a contact of the relay, while the output end is connected with the input end of the microcontroller circuit; the output end of the microcontroller circuit is connected with the relay drive circuit; and the alternating current signal detection power circuit comprises an OFF signal sample processing circuit, an ON signal sample processing circuit and a signal processing circuit. In the invention, the microcontroller is adopted to control the relay contact to switch at the passing-zero moment of an alternating current power supply, so the problem that an electronic switching relay is damaged by the electric arc and surge impact which are generated instantly at the on or off moment of the contact is solved, the load capability and the service life of the relay contact are obviously improved, and the switch performance is higher and safer; and the circuit is low in cost and easy to implement.

The invention relates to a seawater getting system, which comprises a vertical well dug downwards from the ground surface, a pipeline tunnel communicating with the vertical well to an adjacent ocean, a water duct one end of which protrudes into the ocean so as to get water is arranged in the pipeline tunnel, as well as a control valve arranged on the water duct. On one hand, the pipeline tunnel can prevent the water duct from being easily destroyed as the water duct is directly soaked in seawater, and on the other hand, the pipeline tunnel can provide convenience for personnel to pass in / out for pipeline arrangement, operation or maintenance. In addition, when partial sections of the water duct crack, the partial sections can be selectively closed, by the control valve arranged on the water duct, so the cracks of the pipeline can be maintained at the same time when normal water getting amount can still be maintained.

The invention discloses a supersonic wave wind-speed and wind-direction measuring apparatus and measuring method. The apparatus comprises an installation base, supersonic wave sensors, a temperature sensor and a wind-speed and wind-direction measuring unit arranged in the installation base. The four supersonic wave sensors are divided into two groups which are disposed on the orthogonal axises of the same horizontal plane with two facing the other two in a horizontal manner. The temperature sensor is arranged on the upper surface of the installation base. The wind-speed and wind-direction measuring unit acquires the forward transmission time and the backward transmission time of the two groups of the supersonic wave sensors as well as the voltage signal inputted by the temperature sensor to obtain the actually measured data about the initial wind-speed, wind-direction and temperature. Then, a BP neural network model is established so as to obtain the corrected wind-speed and wind-direction expression. Based on the initial wind-speed, wind-direction and temperature, the corrected wind-speed and wind-direction are obtained. According to the invention, the BP neural network model is employed to correct the wind-speed and wind-direction, which eliminates the measurement errors caused by the shadow effect and obtains more accurate wind-speed and wind-direction values.

The invention discloses a hightower pelletization slow-release long-acting high-phosphorus sulfenyl compound fertilizer and a preparation method thereof. The compound fertilizer belongs to a mixed fertilizer. The preparation method comprises the following steps of: preparing hightower pelletization urea compound fertilizer granules by a hightower pelletization device; and wrapping the urea compound fertilizer granules with paraffin waxes and re-wrapping the granules with modified zeolite powders. The hightower pelletization urea compound fertilizer granules are composed of the following raw materials in parts by weight: 31-49 parts of urea, 30-36 parts of monoammonium phosphate and 15-39 parts of potassium sulfate; the usage amount of the paraffin waxes is 0.5-1.0% of the hightower compound fertilizer in percentage by weight; and the modified zeolite powders are composed of the following raw materials in parts by weight: 1-5 parts of zinc stearate and 95-99 parts of zeolite powder. The hightower slow-release long-acting high-phosphorus sulfenyl compound fertilizer which can be used with a hightower pelletization device and is good in slow-release effect, high in utilization rate of fertilizer nutrient, high-phosphorus, simple in process and lower in production cost and is beneficial for soil, atmosphere and water environment protection, and a preparation method thereof are provided.

The invention relates to an intermediate infrared lumen Raman passive Q regulating pulse optical fiber laser. The intermediate infrared lumen Raman passive Q regulating pulse optical fiber laser comprises a pump laser, a coupling lens group, a reflector, a double-clad ZBLAN (fluoride) optical fiber, an optical fiber welding point and a passive ZBLAN Raman optical fiber, wherein the pump laser, the coupling lens group and the reflector are sequentially connected, and an FBG0 (Fiber Bragg Grating), an FBGn, an FBGnout and multi groups of FBG pairs FBG(m-1) are distributed on the passive ZBLAN Raman optical fiber. The intermediate infrared lumen Raman passive Q regulating pulse optical fiber laser disclosed by the invention has the beneficial effects that in the traditional method for actively regulating Q by adopting the gain modulation and an AOM (Acoustic Optical Modulator), the problems of easiness in damaging the pump laser and an optical fiber end surface as a pump light needs to be modulated, and complicated structure, large size and bad flexibility of an optical fiber laser due to the use of an optical fiber external AOM are avoided.

The invention discloses a garbage can with functions of floor sweeping and dust absorption. The garbage can comprises an upper cover body and a lower body, wherein the cover body can be opened from the body; a motor and a dust collection bucket are arranged in the body; a separation device for carrying out dust-gas separation is arranged on the cover body; and a first air inlet port is arranged in the bottom of the body. The garbage can is characterized in that a base is arranged on the bottom of the body; the base is arranged on the bottom of the whole body in a sleeving manner; an air inlet channel connected with the first air inlet port is arranged in the base; at least two rolling wheels are arranged on the base; and a push rod is connected to the rear side of the base. According to the garbage can disclosed by the invention, the problems of inconvenience and high damage possibility due to use of a hose are avoided, and multiple purposes of a garbage can, a floor sweeper and a dust absorber are realized.

The invention relates to an intelligent mortar stirring device. The intelligent mortar stirring device comprises a cylinder and a cover plate arranged on the top of the cylinder. A feeding inlet is formed in the cover plate, and a motor is arranged at the upper end of the cover plate. The lower end of the motor is connected with a speed reducer, the lower end of the speed reducer is connected with a rotary shaft. The rotary shaft penetrates through the cover plate to extend into the cylinder. A plurality of stirring rods are detachably connected to the rotary shaft. A pressure sensor, a consistence sensor and a spray pipe are arranged on the inner wall of the cylinder. A first controller, an alarm device, a second controller and a water tank are arranged on the outer wall of the cylinder. The spray pipe is connected with the water tank through a connecting pipe. An electronic control valve is arranged on the connecting pipe. The pressure sensor and the alarm device are connected with the first controller. The consistence sensor and the electronic control valve are connected with the second controller. A discharge outlet is formed in the bottom of the cylinder. The intelligent mortar stirring device solves the problems that the effect of mortar stirring is poor, consistence of mortar cannot be mastered well, and water needs to be added manually during stirring.

The invention relates to a high-tower granulation slow release long-effect chlorine base compound fertilizer and a preparation method thereof, which belong to mixed fertilizers. Firstly, a high-tower granulation device is used for preparing high-tower granulation urea compound fertilizer particles, then, the paraffin primary covering and the modified zeolite powder surface secondary covering are carried out on the urea compound fertilizer particles to obtain the high-tower granulation urea compound fertilizer particles, and the high-tower granulation urea compound fertilizer particles consist of the following ingredients in part by weight: 35 to 50 of urea, 35 to 45 of potassium chloride and 15 to 20 of ammonium chloride. In the paraffin primary covering process, the paraffin consumption is 0.5 percent to 1.2 percent of the mass of the high-tower granulation urea compound fertilizer particles, and the modified zeolite powder consists of the following ingredients in percentage by weight: 1 to 5 of zinc stearate and 95 to 99 of zeolite powder. The invention provides the high-tower granulation slow release long-effect chlorine base compound fertilizer and the preparation method thereof, and the high-tower granulation slow release long-effect chlorine base compound fertilizer is matched with the high-tower granulation device to be used and has the advantages that the slow release effect is good, the fertilizer nutrient utilization rate is high, the process is simple, the production cost is lower, and the soil, atmosphere and water body environment is favorably protected.

The invention discloses a NFC-based wireless intelligent electric power inspection system. The NFC-based wireless intelligent electric power inspection system comprises a NFC label, a mobile inspection terminal, and a management terminal; the NFC label is arranged at a corresponding inspection point, and is used for storing inspection content corresponding to the corresponding inspection point; the mobile inspection terminal is carried by inspection personnel, and is used for reading the inspection content of the NFC label at the inspection point, uploading inspection record after inspection, and reminding updating of inspection information; the management terminal is used for setting and updating inspection information, receiving and storing inspection record uploaded by the mobile inspection terminal, and providing administrators of different levels with data browsing or set authorization of corresponding levels. The NFC-based wireless intelligent electric power inspection system is capable of improving inspection quality greatly, standardizing universal inspection standards, solving problems such as inspection item skipping, missing, standard disunity, and unclear responsibility, reducing working load of inspection personnel, and increasing working efficiency and equipment operation safety.

The invention relates to a movable cable and cable pipe towing bracket and a use method thereof. The towing bracket comprises a towing bracket body in which a through hole allowing the cable and a cable pipe to penetrate through is formed, roller supports fixedly arranged at the periphery of the towing bracket body and arranged at intervals, and rollers arranged on the roller supports in a freelyrotatable mode, wherein the rollers are arranged on one sides, far away from the towing bracket body, of the roller supports, and part of the rollers extend out of the roller supports. The movable cable and cable pipe towing bracket sleeves a cable and a cable pipe which need to be laid; and the rollers on the towing bracket touch the ground to support the cable and the cable pipe, so that the problem that the cable and the cable pipe are easily damaged due to friction is avoided. Moreover, the rollers can freely roll, so that the labor force required for laying is greatly reduced. In a construction site, the cable and the cable pipe can be moved to a required position according to construction requirements, so that the problem that fixed cable and cable pipe cannot be moved at any time tomeet the construction requirements is solved.

The invention discloses an environmentally-friendly shopping paper bag water-proof outer film, and relates to the technical field of plastic films. The environmentally-friendly shopping paper bag water-proof outer film is prepared from the following raw materials in parts by weight: 35-40 parts of low-density polyethylene, 10-15 parts of polypropylene, 6-10 parts of hydrogenated rosin, 6-10 parts of chitosan, 5-8 parts of filling mineral powder, 5-8 parts of hydrogenated castor oil, 4-6 parts of soybean protein gel, 4-6 parts of rice bran wax, 3-5 parts of sodium carboxymethyl starch, 2-3 parts of glyceryl stearate, 2-3 parts of polyether, 1-2 parts of butadiene rubber, 1-2 parts of microcrystalline wax, 0.5-1 part of urea and 0.5-1 part of antimonous oxide. The environmentally-friendly shopping paper bag water-proof outer film can be attached to the outside of a shopping bag to make an environmentally-friendly shopping bag, so that the water resistance, aging resistance and mechanical performance of the shopping bag are improved, and the problems of tendency to breakage and moisture absorption due to use of paper bags are solved; moreover, the film is biodegradable, so that environmental pollution caused by use of the plastic bag is avoided.

The invention discloses a ceramsite aerated building block added with shell powder, which is characterized by being prepared from following raw materials, by weight, 12-14 parts of shell powder, 30-50 parts of ceramsite, 15-30 parts of fly ash, 8-12 parts of quick lime, 16-20 parts of cement, 0.2-0.5 parts of aluminum powder, 2-4 parts of gypsum powder, 15-20 parts of sludge, 0.3-0.5 parts of calcium lignosulphonate, 1-3 parts of iron powder, 3-5 parts of nano aluminum oxide, 2-4 parts of carbon black, 15-20 parts of anhydrous ethanol and a proper quantity of water. A technical method in the invention solves the problem that ceramsite is liable to be crushed during processing and is non-uniform in distribution in a slurry material. The added shell powder can regulate moisture of the building block, so that the building block is not liable to crack, thereby achieving excellent indoor living condition under proper moisture. The building block is high in waste recycle rate, is simple in process, is low in cost, is environment-protective and saves natural sources, and is valuable to popularize.

The embodiment of the invention discloses a connector, which comprises a body and a connecting body arranged on the body, wherein the surface of the connecting body is provided with at least two signal contacts; and the connecting body is also provided with a magnetic component which is used for adsorbing a magnetic component on the connector to be connected so that the at least two signal contacts are butted with corresponding signal contacts on the connector to be connected. The connector has simple structure and convenient connection, and simultaneously, can effectively improve the accuracy and the reliability of the connection, so that the connector is difficult to damage.