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88results about How to "Achieve expansion" patented technology

Broadband common-caliber base station antenna array based on composite wave-transparent structure

The invention relates to a wide-frequency-band common-caliber base station antenna array based on a composite wave-transparent structure, and belongs to the field of base station array antennas in the mobile communication technology. Comprising a low-frequency antenna, a high-frequency antenna and a metal floor, the low-frequency antenna is located above the high-frequency antenna, and the orthographic projection of the low-frequency antenna and the orthographic projection of the high-frequency antenna are partially or completely overlapped on the metal floor; the low-frequency antenna is composed of three layers of composite wave-transparent structures, and when high-frequency electromagnetic waves irradiate the composite wave-transparent structures of the low-frequency antenna, the composite wave-transparent structures are excited to form a mixed wave-transparent structure; two or more resonance points can be introduced into the mixed wave-transparent structure, so that a broadband transmission window is further introduced, and the shielding effect on a high-frequency antenna caused by a low-frequency antenna is inhibited. The broadband common-caliber base station array antenna can work in two broadband working frequency bands, unit directional diagrams of the two frequency bands in the array are kept stable, and the broadband common-caliber base station array antenna has the advantages of being simple in structure, easy and convenient to design, capable of achieving array arrangement conveniently, low in interference and the like.
Owner:XIDIAN UNIV

Energy storage power station, application of energy storage power station and liquid flow energy storage tank

The invention provides an energy storage power station, application of the energy storage power station and a liquid flow energy storage tank box. The liquid flow energy storage tank box comprises a frame, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe. The liquid storage tank is fixed in the frame, the corner fittings are arranged at the top and the bottom of the frame so that the liquid storage tank can be fixed to a transport vehicle and can be mutually fixed and stacked, and transportation and installation of the liquid flow energy storage tank box are facilitated. The liquid storage tank is used for containing electrolyte, the electrolyte can be transported along with the liquid flow energy storage tank box, and the electrolyte does not need to be transported independently. And the electrolyte does not need to be transferred for multiple times, so that the probability of electrolyte leakage is effectively reduced, and the safety is high. Meanwhile, the pollution to the environment is reduced. The liquid flow energy storage tanks can be stacked through the corner fittings, and the occupied area of the energy storage power station is reduced. According to the structure of the energy storage power station, by adding the liquid flow energy storage tanks and stacking the liquid flow energy storage tanks, the energy storage capacity of the energy storage power station can be expanded, the construction efficiency of the energy storage power station is improved, the cost is reduced, and convenient transportation and installation of the large liquid flow energy storage power station are achieved.
Owner:NANTONG CIMC TANK EQUIP CO LTD

Stator winding wiring method of flat wire motor, stator winding and flat wire motor

The invention discloses a wiring method of a stator winding of a flat wire motor, the stator winding and the flat wire motor, and relates to the technical field of motors, the method comprises the following steps: according to a design structure of the flat wire motor, a conductor in a stator winding slot is divided into multiple groups of sub-windings along an inner diameter direction, and the design structure of the flat wire motor comprises a total slot number, a total pole number and a total layer number; determining the number of parallel branches of the multiple groups of sub-windings according to the total pole number, wherein the number of the parallel branches is a divisor of the total pole number; determining the conductor layer number of the multiple groups of sub-windings according to the total layer number; and determining the wiring structure of the stator winding according to the number of parallel branches and the number of conductor layers. Since the conductors in the stator winding slots are divided into multiple groups, and each group adopts different parallel branches, more series turns of each phase can be realized through the combination of the parallel branches and the conductor layer, the optional range of the series turns of each phase is greatly improved, the expansion and optimization of the series turns of each phase winding are realized, and the service life of the stator winding is prolonged. Therefore, the requirements of driving motors with different voltages and performances can be met.
Owner:DONGFENG MOTOR GRP

Built-in lifting and folding structure of automobile small table board

The invention provides a built-in lifting folding structure of an automobile small table board, which is characterized in that two groups of support plates are respectively arranged on two sides of the interior of a rear box body, and a lifting driving mechanism and a small table board assembly are respectively arranged on two sides of the support plates through an inner guide rail and an outer guide rail which vertically extend; the lifting driving mechanism and the small table board assembly are in transmission through a plurality of transmission wheels which are connected with one another, the lifting driving mechanism controls the small table board assembly to stretch out of the opening of the rear box body, and then the center shaft plate is turned over to achieve unfolding of the small table board. The lifting folding structure can be applied to various vehicle types in the prior art, the occupied space is small, the small table plate can be adjusted between the unfolded state and the folded state, and a passenger can adjust the small table plate to the target position according to needs. According to the embodiment, the elastic supporting structure is arranged, the small table board assembly can be supported, and the supporting strength of the small table board assembly in the unfolded state is improved.
Owner:昆山海圳汽车技术发展有限公司

Waterproof sealing type connector

The utility model discloses a waterproof sealing type connector which is provided with a plug, and the plug and a socket are connected with each other. Comprising a sleeve block which is movably arranged on the outer side of the plug in a sleeving mode, a fixing strip is fixed to the inner side of the sleeve block, a fixing groove is formed in the plug on the outer side of the fixing strip, and the fixing strip and the plug slide in an attached mode through the fixing groove; the adjusting mechanism movably penetrates through the two ends of the sleeve block, a sealing assembly is arranged at the end of the adjusting mechanism, the sleeve block moves to drive the adjusting mechanism to synchronously move, on one hand, the connecting tightness of the plug and the socket is guaranteed, and on the other hand, the sealing assembly is driven to seal the connecting gap of the plug and the socket. According to the waterproof sealing type connector, the gap at the joint of the plug and the socket is sealed by changing the thickness of the sealing structure, and the gap can be plugged adaptively according to the size of the gap at the joint of different connectors, so that the sealing performance of the connector after connection is ensured.
Owner:CONTAC SOLUTIONS SHENZHEN CO LTD

Head-up display system and vehicle

The utility model discloses a head-up display system and a vehicle, and relates to the technical field of vehicles. The head-up display system comprises an image generation unit, a dodging unit and a reflection unit, the image generation unit is used for emitting imaging light beams, and the imaging light beams comprise a first light beam and a second light beam. The dodging unit is used for receiving and transmitting the first light beam and the second light beam respectively and enabling light paths of the first light beam and the second light beam to be mutually isolated. The reflection unit is used for receiving the first light beam and the second light beam respectively and reflecting the first light beam and the second light beam to the vehicle window so as to form a near virtual image and a far virtual image respectively. According to the technical scheme, the size of the head-up display system can be reduced, and the cost of the head-up display system is reduced.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Installation device for underground water-sealed cave depot osmometer

The utility model provides a mounting device for an osmometer of an underground water-sealed cave depot, which relates to the technical field of osmometer mounting and comprises a pressure pump and a water pressure pump. The water pressure pump is connected with the pressurizing pump through a pressurizing pipe; the water pressure pump is sleeved with a sealing plug. The pressure pump controls the expansion of the sealing plug through the console; a base is mounted on the water pressure pump and is used for mounting the osmometer; in an initial state, the sealing plug is in a contraction state, the osmometer mounting device is formed by arranging the pressure pump, the water pressure pump and the sealing plug, the volume of the sealing plug is increased through flushing pressurization, contraction and expansion of the sealing plug are achieved, and then stability of the osmometer after entering a drill hole is achieved.
Owner:BEIJING DONGFANG XINXING SURVEY & DESIGN CO LTD

Low-temperature-resistant composite microbial enzyme preparation, preparation method thereof and application of low-temperature-resistant composite microbial enzyme preparation in straw and manure synergistic fermentation

This invention relates to the field of low-temperature fermentation formulation technology. The invention provides a low-temperature resistant compound bacterial enzyme formulation, its preparation method, and its application in the co-fermentation of straw and manure. The compound bacterial enzyme formulation comprises the following raw materials in parts by weight: 8-10 parts of compound bacterial agent, 1-1.4 parts of compound enzyme agent, and 88.6-91 parts of excipients. The compound bacterial enzyme formulation of this invention can ferment straw and manure under conventional conditions as well as at low temperatures of around 15°C, effectively meeting the fermentation requirements in low-temperature regions. By combining the excipients with the bacteria and enzymes, substances and nutrients during the fermentation process can be effectively adsorbed, avoiding acid inhibition, and providing attachment sites for the bacteria and enzymes, thus prolonging their activity.
Owner:JILIN ACAD OF ANIMAL HUSBANDRY & VETERINARY SCI

Vacuum chamber with double-propulsion material distributing device

The utility model discloses a vacuum chamber with a double-propulsion material distribution device, which belongs to the technical field of vacuum pugging and comprises a pug feeding mechanism and a vacuum pugging chamber which are communicated with each other through a material distribution sieve plate, two pugging propulsion lines are arranged in the vacuum pugging chamber, and the two pugging propulsion lines respectively receive pug which is distributed by the material distribution sieve plate. And two pugging propelling lines are integrated in a vacuum cavity of the vacuum pugging chamber. The pug is distributed by the distribution sieve plate and then uniformly falls onto the corresponding pug propulsion lines, and is respectively and independently subjected to homogenization mixing and vacuum degassing treatment, and finally the pug is molded by the distribution lines and then pushed out. The capacity expansion of the vacuum pugging equipment is realized through double-line independent treatment, the production efficiency is improved, and the high integration degree of double lines ensures that the floor area expansion rate of the equipment is extremely low. Due to the fact that the pug of the double lines is processed in parallel after being distributed, the independent operation mode ensures the processing quality of the pug of each single line, and the homogenization and degassing effects are guaranteed.
Owner:XIANGTAN HUASHI CERAMICS MACHINERY

Wind power blade mold clamping mechanism with adjustable adaptation range and clamping method

The invention relates to the technical field of wind power blade mold positioning, and discloses a wind power blade mold clamping mechanism with an adjustable adaptation range and a clamping method.The wind power blade mold clamping mechanism comprises a blade mold body, the blade mold body is fixedly installed at the top of a positioning clamping support through bolts, and an outer side positioning cavity is further fixed to the side wall of the bottom of the blade mold body; the blade mold further comprises auxiliary positioning blocks which are installed on the inner side wall of the blade mold body at equal intervals in an embedded mode, an installation support and a positioning support are fixed in an outer side positioning cavity under the auxiliary positioning blocks, a telescopic rod piece is rotationally connected into the installation support, and the tail end of an output shaft of the telescopic rod piece is fixed to the center of the back face of each auxiliary positioning block. Meanwhile, the positioning bracket penetrates through the back surface of the auxiliary positioning block. Positioning of the blade mold and clamping and positioning of the demolding structure in the mold are achieved, the driving range of clamping and positioning application of the demolding structure is conveniently adjusted, and rapid demolding of the wind power blade is achieved.
Owner:DONGTAI MAISHENG INTELLIGENT TECH CO LTD

Stone processing and conveying device

The invention discloses a stone processing and conveying device, and relates to the technical field of stone conveying. The conveying mechanism comprises a transmission mechanism used for conveying, a rack connected with the transmission mechanism, a sweeping assembly connected with the transmission mechanism, a dust collection assembly connected with the sweeping assembly, a conveying wall connected with the conveying mechanism and a straightening assembly connected with the conveying wall. The stone sorting device has the advantages that when stone is placed on the conveying belts on the two sides of the transmission mechanism, telescopic cylinders in the straightening assemblies stretch out and draw back along with telescopic springs and abutting blocks, a plurality of rollers rotate, the posture of the stone is straightened in cooperation with the conveying belts, and the stone sorting device is high in sorting efficiency and good in sorting effect. The stone conveying device solves the problems that due to the fact that the shapes of stones are irregular, the stones are often stuck, the posture is not correct, the conveying efficiency is affected, and even equipment is damaged.
Owner:HUBEI JINGXUAN STONE CO LTD

A composite carbon source for improving denitrification capacity of activated sludge, and a preparation method and application thereof

PendingCN122502024ALong-lasting and stable supplyinhibit swelling
This application relates to the field of carbon source materials, and in particular to a composite carbon source for enhancing the denitrification capacity of activated sludge, its preparation method, and its application. The composite carbon source for enhancing the denitrification capacity of activated sludge, by weight, comprises: 45-60 parts of fast-acting carbon source, 10-15 parts of long-acting carbon source, 9-16 parts of synergist, 0.2-0.5 parts of activator, 4-8 parts of composite functional agent, and 20-25 parts of deionized water. This composite carbon source effectively promotes the denitrification start-up speed, provides a stable and continuous carbon source supply, effectively avoids the defects of traditional carbon sources such as excessive supply in the early stage and insufficient supply in the later stage, and ensures efficient operation of the entire denitrification process. It is safe and convenient to use, non-toxic, and poses no risk of combustion or explosion. Storage and addition are simple, significantly reducing on-site operational safety risks. The carbon release process is stable and controllable, and multiple slow-release mechanisms enable flexible regulation of the carbon source release rate to match the denitrification requirements under different operating conditions.
Owner:DONGGUAN HUANJIE CHEM CO LTD

Storage device, instrument cluster assembly, and vehicle

This application relates to the field of vehicle technology, disclosing a storage device, a sub-instrument panel assembly, and a vehicle. The mounting base includes a first end and a second end opposite to each other. The first end is used to connect to a mounting position on the vehicle. The second end has a receiving cavity. A movable support plate is movably connected to the second end. The movable support plate can move within the receiving cavity in a direction approaching or away from the first end to have a first position close to the first end and a second position away from the first end. A clamping assembly is at least partially disposed on the side of the movable support plate opposite to the first end and forms a clamping opening. When the movable support plate is in the first position, the clamping opening retracts to fix the target storage device in the mounting position via the movable support plate and the clamping assembly. When the movable support plate is in the second position, the clamping opening expands to remove the target storage device from the mounting position. Applying the technical solution of this application can solve the problem of insufficient comfort and convenience for rear passengers operating the rear center console screen in the prior art.
Owner:AVATR CO LTD

Pipe coiling device for PVC hose production

The utility model provides a pipe coiling device for PVC (polyvinyl chloride) hose production, which relates to the technical field of pipe coiling and comprises a rack, a coiling drum is rotatably mounted on the rack, a pipe coiling limiting frame is fixedly mounted on the coiling drum, a limiting column is fixedly mounted on the inner side of the coiling drum, and an adjusting sleeve is slidably mounted on the limiting column. A first compression spring is arranged between the adjusting sleeve and the winding drum, a self-locking assembly is arranged between the adjusting sleeve and the limiting column, a plurality of baffles are hinged to the peripheral face of the adjusting sleeve, and a plurality of driving air cylinders are hinged to the peripheral face of the adjusting sleeve. By means of the structure, rapid adjustment and automatic locking of the adjusting sleeve on the winding drum are achieved, automatic folding and automatic unfolding of the baffle are achieved through cooperation of the driving air cylinder and the baffle, and a coiled coil pipe can be taken down from the winding drum conveniently.
Owner:CHANGLE COUNTY YOUYI PLASTICS CO LTD

Down feather deodorizing device

ActiveCN224131537UAchieve expansionSave the problem of not being able to pour out all the downRotary stirring mixersArticle unpackingElectric machineryUltraviolet Radiations
The utility model relates to the technical field of down feather production and processing, and discloses a down feather deodorizing device which comprises a limiting assembly, the limiting assembly comprises a shifting piece, a rotating disc is fixedly connected to one side of the shifting piece, a sliding groove is formed in the rotating disc, a limiting rod is fixedly connected to the inner wall of a feeding barrel, and a second rotating shaft is fixedly connected to the upper surface of the rotating disc. A first connecting rod is rotationally connected to the outer wall of the second rotating shaft, a first rotating shaft is rotationally connected to one end of the first connecting rod, and a second connecting rod is rotationally connected to the outer wall of the first rotating shaft. According to the down feather deodorizing device, down feather in the down feather deodorizing device can evenly fall into the feeding pipe, manpower is saved, the problem that all down feather cannot be poured out easily is solved, the motor drives the rotating blades on the third rotating shaft to rotate, stirring and mixing of the down feather are further enhanced through the multiple rotating blades during ultraviolet irradiation, and the deodorizing efficiency is improved.
Owner:ANHUI FANGXING DOWN TECH CO LTD

Intelligent pipeline plugging device

The utility model discloses an intelligent plugging device for a pipeline. The intelligent plugging device comprises the pipeline, two moving modules, a first transmission part and a third driving part, the moving module comprises a main body, a first fixing plate, a first driving piece, a second driving piece, an anchoring assembly, a sealing assembly, a moving plate, a second fixing plate and a second transmission piece; the main body is arranged in the pipeline, and the first fixing plate is connected into the main body; the fixed end of the first driving part is arranged on the side, close to the first transmission part, of the first fixing plate, and the movable end of the first driving part is connected with the anchoring assembly. The fixed end of the second driving piece is arranged on the other side of the first fixing plate, and the movable end of the second driving piece is connected with one end of the second transmission piece; the other end of the second transmission part is connected with the movable plate; the sealing assembly is connected to the outer side, close to the movable plate, of the body, and the movable plate abuts against the sealing assembly. The second fixing plate is connected to one end of the body close to the first transmission member. Safe plugging of the natural gas pipeline is achieved, and the function of moving in the pipeline is achieved.
Owner:SHAANXI PROVINCIAL NATURAL GAS

Method for preparing nickel carbonyl and carbonyl iron by fluidized bed carbonylation process

The invention discloses a method for preparing carbonyl nickel and carbonyl iron by using a fluidized bed carbonylation process, which solves the problems of low carbonylation efficiency and incapability of high-valued utilization of iron in part of raw materials, and specifically comprises the following steps: 1) pulverizing a material containing nickel and iron by using a vacuum gas atomization technology; 2) treating the ferronickel-containing material powder through a fluidized bed carbonylation kettle to obtain crude carbonyl ferronickel and carbonylation tailings; 3) treating the crude carbonyl ferronickel through a three-stage condensation process to obtain a carbonyl nickel solution, a carbonyl iron solution and a carbonyl nickel and carbonyl iron mixed solution; and (4) the nickel carbonyl liquid, the iron carbonyl liquid and the mixed liquid of the nickel carbonyl and the iron carbonyl are subjected to rectification and segmented decomposition processes to obtain a nickel product and an iron product, finally, development of the carbonylation metallurgical raw materials is achieved, and clean and efficient treatment of the raw materials containing the nickel and the iron is also achieved.
Owner:JINCHUAN GROUP CO LTD

Purification column for pretreatment of dioxin

The utility model relates to the technical field of dioxin pretreatment, in particular to a purification column for dioxin pretreatment, which comprises a column body and blocking parts, the two ends of the column body are respectively provided with a limiting mechanism, each blocking part is respectively arranged at the two ends of the column body through the limiting mechanisms, each blocking part comprises a mounting plate, and the mounting plates are arranged on the column body. A plurality of notches which are uniformly distributed are formed in the periphery of the mounting plate, movable blocks are arranged in the notches, mounting grooves are formed in the middles of the peripheries of the movable blocks and the mounting plate, and sealing rubber rings are arranged in the mounting grooves; the sealing device has the beneficial effects that by rotating a threaded rod, the threaded rod drives an abutting plate to move, a movable block can expand outwards along a notch in cooperation with a connecting rod, then a sealing rubber ring can be expanded, and at the moment, the sealing rubber ring is better attached to the inner wall of a column body; and the phenomenon that normal purification of dioxin is affected due to the fact that a gap is generated between the sealing rubber ring and the column body due to gas pressure in the using process is avoided.
Owner:广东德量环保科技有限公司

A power distribution network multi-resource integration planning method and system based on a graph neural network

PendingCN122693191AAchieve expansionExcavate accurately
The present application relates to the technical field of power distribution network planning, and more particularly to a power distribution network multi-resource integrated planning method and system based on a graph neural network. The method comprises the following steps: collecting the operation and geographic data of the distribution transformers, feeder switches, 10kV feeders and each load access point in the target planning area to form a basic planning data set; constructing a power distribution network topology graph and using a graph neural network to identify overloaded feeder sections, low-voltage end sections and overloaded transformer nodes; then, according to the spatial position and power supply correlation of each problem area, determining the distribution transformer capacity expansion layout, tie switch addition and line extension reconstruction path; and finally, optimizing and outputting the target area planning scheme through power flow checking. The present application identifies the weak links of the power distribution network through a graph neural network and cooperatively optimizes the capacity expansion layout, tie transfer and line extension path, thereby achieving the precision, collaboration and economy of power distribution network planning and significantly improving the power supply capacity and overall operation reliability.
Owner:STATE GRID ELECTRIC POWER ECONOMIC RES INST IN NORTHERN HEBEI TECH CO LTD

Novel expanded anchor cable

The invention relates to the field of expansion anchor cables, in particular to a novel expansion anchor cable which comprises a base, a grouting pipe used for grouting is arranged on the base, a sliding part capable of moving during grouting is further arranged on the base, and an external expansion part capable of expanding outwards along with movement of the sliding part is arranged on the outer portion of the base. The sliding part comprises a grouting outer cylinder which is fixedly connected to the base and communicates with the grouting pipe, a grouting inner cylinder which is arranged in the grouting outer cylinder in a sliding manner, and a connecting rod I which is fixedly connected to one side of the grouting inner cylinder; the method has the beneficial effects that expansion of the anchor cable is completely pushed by grout during grouting, other mechanical devices are not needed for assistance, a special construction technology is not needed either, and actual use is facilitated.
Owner:SINOSTEEL ZHENGZHOU RES INST OF STEEL WIRE PROD CO LTD

Multifunctional adjustable goods shelf

The utility model discloses a multifunctional adjustable goods shelf, which relates to goods shelves and comprises a base fixing frame, and vertical rods are respectively welded at four corners of the top of the base fixing frame; sliding grooves are formed in the adjacent faces of the two vertical rods located on the side edges, a plurality of moving parts are arranged in the sliding grooves in a sliding mode, clamping grooves are formed in the outer side faces of the moving parts, and the number of the clamping grooves in one moving part is not smaller than three. And tenon fork positioning pieces matched with the clamping grooves in an inserting manner are arranged on the opposite side walls of the goods tray. The distance between the cargo trays is vertically adjusted through the moving part, and the base frame is horizontally expanded through the loop bar-guide rail structure, so that bidirectional adjustment is realized, and the flexible use requirement is met.
Owner:广州远联物流服务有限公司

Connecting structure and capacity expansion device of optical cable cross-connecting box

The utility model relates to the technical field of optical cable cross-connecting boxes, and discloses a connecting structure and an optical cable cross-connecting box capacity expansion device, the connecting structure comprises a connecting unit, the connecting unit comprises two symmetrical fixing assemblies, a sliding cylinder fixed at one end of one fixing assembly, and a limiting assembly arranged in the fixing assembly. The beneficial effects of the utility model are that through the mutual cooperation of the fixing assemblies, the sliding cylinders and the limiting assemblies, the connection of a plurality of optical cable staggered boxes can be realized, and the capacity of the optical cable staggered boxes can be expanded, so that the optical cable staggered boxes can adapt to the use requirements of optical fibers; the structure arranged on one side of the box body can be matched with the connecting unit, so that the connection of the two optical fiber staggered boxes can be realized through the connecting unit, and the capacity expansion of the optical cable staggered box is realized.
Owner:南京天润科技有限公司

Flower and fruit management method for reducing postharvest shattering rate of seedless white grapes

The invention provides a flower and fruit management method for reducing the postharvest shattering rate of seedless white grapes, and belongs to the technical field of agricultural planting. The invention provides a flower and fruit management method for reducing the postharvest shattering rate of seedless white grapes, which comprises the following steps: in the grape inflorescence separation period, treating inflorescence by using a GA3 aqueous solution, and treating the whole grape plant by using a Vitacat aqueous solution after 3-5 days; and when the grapes bear fruits and fruit grains grow to be as large as mung beans, treating clusters by using a compound aqueous solution of GA3 and Vitacat. When the method is adopted for flower and fruit management, the weight, the soluble solid content and the fruit hardness of the seedless white grapes are not obviously influenced, but the fruit shape index, the fruit brush length and the adhesive force between fruit grains and fruit stems can be effectively improved, and the post-harvest seed shattering rate is obviously reduced.
Owner:XINJIANG ACAD OF AGRI SCI (XINJIANG BRANCH OF CHINESE ACAD OF AGRI SCI) +1

Efficient cleaning pool for air conditioner

According to the technical scheme, the efficient cleaning pool is characterized by comprising a supporting frame and a cleaning pool body connected to the supporting frame, a connecting piece used for connecting the supporting frame to the air conditioner is arranged on the supporting frame, the supporting frame comprises a plurality of keel plates, the keel plates are sequentially connected in a hinged mode, and the cleaning pool body comprises a plurality of side walls. The top of the cleaning pool is provided with an opening, the bottom is provided with a water outlet and / or a drainage pipe, and the keels are connected to the side walls of the cleaning pool and used for maintaining the shape of the cleaning pool; the cleaning pool does not need to be assembled, is fast to install on a machine and has a large stable space, the detached air conditioner shell filter screen can be directly placed in the cleaning pool to be directly cleaned, and the efficiency of air conditioner cleaning work is greatly improved.
Owner:XIAMEN SUMEI AIR CONDITIONING SERVICE CO LTD

A portable hygiene emergency backpack

The utility model relates to the field of medical and health products discloses a portable sanitary emergency knapsack, including knapsack body, shoulder belt and additional knapsack, the shoulder belt includes back interface department and two shoulder straps, the back interface department installs one side of knapsack body, two the shoulder strap symmetrical installation is on back interface department, one side of additional knapsack is installed with several connecting plates, the side of knapsack body is installed with several connecting portions of cooperation connecting plate, the connecting portion has the connecting groove of top side open mouth, and at least part structure of connecting plate can be jointed to in connecting groove, be provided with several firm band on additional knapsack, and the free end of firm band is detachable connection through magic tape with knapsack body. The technical scheme of the application can conveniently realize the expansion and the reduction of the emergency knapsack, and effectively improve the portability of the emergency knapsack.
Owner:CHONGQING CENT FOR DISEASE CONTROL & PREVENTION (CHONGQING EMERGENCY TREATMENT CENT FOR DISASTER RELIEF & DISEASE PREVENTION)

A kind of engraving equipment based on manual art and using method

The present invention relates to the field of engraving technology, and discloses an engraving device based on handicraft and a method of use, including a grinder, wherein the lower end of the grinder is provided with a protective component for preventing large particles of dust; the interior of the grinder is provided with a built-in cavity, the built-in cavity is provided with a built-in motor, and the lower end of the built-in motor is provided with an opening and closing component for controlling water flow; the lower end of the grinder is provided with an extended metal tube, the lower end of the extended metal tube is fixedly connected with a metal ball, and the interior of the metal ball is connected to the interior of the extended metal tube. The present invention achieves the purpose of saving water by arranging a flat airbag and annular rubber, so that water in the side hole flows out and dust is reduced; the hollow tube and the side hole will not be blocked, and a better dredging effect is achieved; the heat generated by the metal ball during grinding can be absorbed by the water inside, thereby reducing frictional heat and extending the service life.
Owner:北京央美城市公共艺术院

Manifold gas screw transformer, Manifold compressor, Manifold expander

The present invention provides a branched-confluence gas screw transformer mechanism, a branched-confluence compressor, and a branched-confluence expander. The branched-confluence gas screw transformer mechanism comprises: a shell, in which a rotor cavity is formed; at least two screw rotors, all of which can be rotatably meshed and accept the constraints of the rotor cavity wall in the shell; the branched-confluence gas screw transformer mechanism is not provided with an air inlet plate and an exhaust plate. The branched-confluence gas screw transformer mechanism, the branched-confluence compressor, and the branched-confluence expander of the present invention can realize gas compression or expansion without providing an air inlet plate and an exhaust plate in the prior art by setting the relationship between the branching angle and the number of teeth of each spiral rotor, thereby overcoming the energy losses such as air flow disturbance loss and air flow friction loss caused by the air inlet plate and the exhaust plate in the prior art, and improving the response rate, service life, and energy efficiency of the branched-confluence gas screw transformer mechanism.
Owner:JIANJIAN TECH (NINGBO) CO LTD

A biomimetic octopus-inspired underwater pipe welding robot

This invention provides a biomimetic octopus-inspired underwater pipeline welding robot, belonging to the field of robotics technology. The main structure adopts a semi-elliptical spherical pressure-resistant shell, with an internal reinforced support frame and a pneumatic bistable device. The pneumatic bistable device drives a water jet propulsion unit, enabling the robot's multi-degree-of-freedom movement. The robotic arm system includes multi-joint robotic arms evenly arranged around the main structure. Each multi-joint robotic arm includes multiple joints, a flexible telescopic rod, and a biomimetic vacuum suction cup. The joints are connected non-linearly. The end of the multi-joint robotic arm is equipped with a biomimetic vacuum suction cup. An SMA actuator is installed within the flexible telescopic rod. The contraction of the SMA actuator generates an eccentric driving force, enabling vertical position control and spatial bending motion of the biomimetic vacuum suction cup. The end of the multi-joint robotic arm can be modularly replaced with a welding module for performing underwater pipeline welding operations.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)