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104results about How to "Improve sealing effect" patented technology

Pneumatic particle size classifying device for solid particles

InactiveCN102716857AAffect balanceAffect normal working conditionsGas current separationSolid particleEngineering
A pneumatic particle size classifying device for solid particles comprises a fluidized bed main body, a cyclone separator, material inlets, an air distributing system, a secondary air port, a coarse material outlet and a fine material collecting and discharging system. The material inlets are positioned on the middle upper portion of the fluidized bed main body and are distributed on four walls in a multi-point manner, the hopper-shaped air distributing system consists of an inclined air distributing plate, the coarse material outlet is arranged in the center of the inclined air distributing plate, the fine material collecting and discharging system consists of a fine material collecting chamber and an intermittent discharging valve and is directly connected with a lower particle outlet of the cyclone separator, or the fine material collecting and discharging system can consist of a fine material collecting chamber and a fine material discharge port and is connected with a particle outlet of a feedback valve. The pneumatic particle size classifying device is simple in structure, effective pneumatic particle size classification for selective coking coal particles is carried out by fluidization technology, retaining time of the particles in the bed body can be effectively prolonged, the pneumatic particle size classifying device is stable in running and fine in separation effect, and energy and coking coal resources are greatly saved.
Owner:TSINGHUA UNIV

Water-cooling motor housing sealing inspecting equipment capable of conveniently fixing motor housing

The invention discloses water-cooling motor housing sealing inspecting equipment capable of conveniently fixing a motor housing. The equipment comprises a moving disc, multiple baffles arranged on themoving disc, an inspecting box which is arranged on one side of the moving disc and a first sliding rail which cooperates with the moving disc, a first driving assembly is arranged at the bottom of the moving disc, first air pressure sensors are arranged on the side walls of the baffles, a second air pressure sensor is arranged on the moving disc, the inspecting box comprises a supporting rod arranged on the first sliding rail and an installing plate arranged on the supporting rod, an air delivery pipe is arranged on the installing plate, fixing assemblies are arranged on the baffles, a limiting assembly is arranged on the moving disc. The equipment has the advantages that the motor housing is fixed through a fixing assembly and a limiting assembly, so that the inspection on air pressureinside and outside the motor housing is conveniently conducted through the first air pressure sensors and the second air pressure sensor, a better sealing fixing effect on the motor housing is achieved by the inspecting equipment, and rapid inspection is conveniently conducted on the motor housing.
Owner:QUZHOU KECHENG TECH DEV CO LTD

Self-healing ceramic matrix composite and low-temperature rapid preparation method thereof

The invention provides a low-temperature rapid preparation method of a self-healing ceramic matrix composite. The composite is prepared by adopting a high temperature resistance inorganic fiber clothor a thin fabric as a reinforcing phase, adopting silicon resin and MoSi2 micro powder and the like as a matrix, performing repeated densification through a slurry auxiliary vacuum impregnation-high-temperature cracking technology. Due to the acupuncture or puncture sewing technology in the preparation method, the material flexibility is ensured, and the composite is better applicable to molding of large-size and complex components; meanwhile, the method is short in preparation period, and the composite is low in cost; the preparation technology is mature, and the production efficiency is high; the composite obtained through the method has the proper viscous flowing capability, and the packing effect is improved while the packing temperature is increased; the high dielectric dispersing resistance is achieved, and corrosion of environment media to fiber is reduced; raw materials are wide in source, preparation is easy, operation is easy, the method is expected to be an effective methodin the industrial field for producing and preparing the ceramic matrix composite in a large scale, and the application prospect is wide.
Owner:NAT UNIV OF DEFENSE TECH

Woven bag opening sealing device with great opening sealing effect

The invention relates to a woven bag opening sealing device with a great opening sealing effect. The woven bag opening sealing device comprises a main body, a base, a heating device and a conveying device and further comprises a processing mechanism and a limiting mechanism, wherein the processing mechanism comprises a distance regulating assembly and a processing assembly; the distance regulatingassembly comprises a shell, a first motor, a first gear, a second gear and two moving units; the processing assembly comprises a lifting unit and a clamping unit; and the limiting mechanism comprisesa vertical rod, a slider, a first connecting rod, a second connecting rod, a push plate and two control assemblies. In the woven bag opening sealing device with the great opening sealing effect, through the processing mechanism, the opening sealing positions of woven bags can be thermally sealed through the heating device in horizontal states, so that the condition that openings tilt and even cannot be fully sealed is avoided, and the opening sealing effect is improved; and through the limiting mechanism, the woven bags are always located in the central part of the conveying device, the opening sealing positions of the tops of the woven bags are prevented from deviating from the heating device, and the opening sealing effect and the practicability of the woven bag opening sealing device are improved.
Owner:JIANGSU SENBAO PACKAGING

Hidden pipe connector for modifying saline-alkali soil

The invention discloses a hidden pipe connector for modifying saline-alkali soil, and belongs to the technical field of engineering drainage. The connector comprises an inner sleeve pipe. The outer wall center position of the inner sleeve pipe is provided with a connection part. The outer wall of the connection part is provided with an outer sleeve pipe. A hollow cavity is formed between the inner sleeve pipe and the outer sleeve pipe. A hidden pipe is inserted in the hollow cavity. Through the arrangement of the outer sleeve pipe and the inner sleeve pipe the hollow cavity is formed. One end of the hidden pipe is plugged in the hollow cavity. At the same time an exhaust device is employed to empty the air in the hollow cavity. When the hidden pipe has a potential to be plugged out, a vacuum condition is formed between the inner sleeve pipe and the outer sleeve pipe, thus preventing the hidden pipe from being plugged out even further, and ensuring the enough connection strength of the hidden pipe connector. The connector has the advantages of being simple in structure, reasonable in design, strong in practicality, and convenient in operation. The connection strength of the hidden pipe connector is high, the sealing property is good. The service life is long and the market promotion prospect is tremendous.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Underground garage anti-water flooding device for in case of flood and waterlog disaster

InactiveCN110748220AImprove sealing effectReasonable and effective structureDamsDykesWater blockMechanical engineering
The invention belongs to the technical field of water blocking structures, and particularly relates to an underground garage anti-water flooding device in case of flood and waterlog disasters. According to the underground garage anti-water flooding device in case of the flood and waterlog disasters, by the mode of inflating and lifting a rotating water blocking plate at the entrance position of anunderground garage, so that the basic water blocking and anti-water flooding effect is achieved; and a property management company and owners are reported in time through an alarm system, and a sealing air bag can abut against a groove edge vertical plate after the being inflated and expanded, so that the sealing water blocking effect is further improved. The underground garage anti-water flooding device in case of the flood and waterlog disasters has the advantages that the water blocking and anti-water flooding structure of the rotating water blocking plate at the entrance position of the underground garage is reasonable and effective, the operation is convenient and rapid, vehicle passing is not affected when the device is unused, the overall alarming effect is good, the water blockingand drainage functions are operated at the same time, the side edge high-strength sealing water blocking is achieved, the sealing water blocking structure is high in stability, and flood is more difficult to enter the underground garage.
Owner:陈立森

Sealing device for end parts of pipe

The invention relates to the field of pressure measurement of a pipe and more specifically, relates to a sealing device for end parts of a pipe. The sealing device includes a sealing-end sealing body and an air-inlet-end sealing body, which are respectively installed at the end parts at the two ends of the pipe. One end of the sealing-end sealing body is provided with an opening and the two ends of the air-inlet-end sealing body are provided with openings. Both the sealing-end sealing body and the air-inlet-end sealing body are hollow cavities inside. Sealing rings and spring sleeve clamping tools which allow the pipe to penetrate are installed in the hollow cavities. Clamping wrenches contacting with the spring sleeve clamping tools are installed at the outer sides of the sealing-end sealing body and the air-inlet-end sealing body. The spring sleeve clamping tools can be squeezed through wrenching the clamping wrenches and deformed so as to lock the pipe which penetrates the spring sleeve clamping tools. End-part sealing heads are arranged at one opening end of the sealing-end sealing body and one opening end of the air-inlet-end sealing body. After the sealing device for the end parts of the pipe is assembled, the two ends of the pipe are inserted directly into the sealing-end sealing body and the air-inlet-end sealing body and the clamping wrenches are wrenched so that installation is completed. The sealing device is convenient to install and the installation is high in speed and efficiency.
Owner:HENAN LIANSU IND

Composite fireproof thermal insulation wall body

The invention discloses a composite fireproof thermal insulation wall body. The composite fireproof thermal insulation wall body is formed by splicing a plurality of orderly and evenly arranged fabricated composite wall bodiess, each fabricated composite wall body comprises an outer frame and an inner function distribution layer, wherein the each inner function distribution layer is arranged in the corresponding outer frame and closely attached to the corresponding outer frame; each inner function distribution layer sequentially comprises a heat insulation layer, a protective layer, an anti-corrosion damp-proof layer and a fireproof layer, each outer frame comprises two outer wall panels and a bearing wall body, the two outer wall panels are fixed to two sides of the bearing wall body respectively, the left side of the bearing wall body is the inner side of the building wall body, and the right side of the bearing wall body is the outer side of the building wall body; and connecting steel pieces are symmetrically fixed to the four corners of the bearing wall body, the connecting steel pieces penetrate through the bearing wall body and connect and fix the outer side of the buildingwall body and an outer wall panel on the inner side of the building wall body, and the outer wall panel is a decorative layer of the composite fireproof heat preservation wall body.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Full-automatic intelligent packer

The invention discloses a full-automatic intelligent packer in the technical field of packing devices. The full-automatic intelligent packer comprises a base, a mounting seat, a servo motor, a rotating seat, a clamping unit, a ball screw and a screw nut, wherein the screw nut is sleeved with a floating seat, a lug block is arranged on the floating seat, a sleeve shaft is vertically and rotatably connected to the lug block, the ball screw is driven by an intermittent transmission unit to rotate intermittently, and then the screw nut is driven to drive the floating seat to move vertically. The intermittent transmission unit is arranged to drive the ball screw to rotate, so that after an express packaging box rotates by a circle, the ball screw rotates to drive the lug block to move upwards, adhesive tape placed on the sleeve shaft in an inserted mode can move upwards, then the sealing area of the express packaging box is adjusted, and the sealing effect on the express packaging box is improved. The intermittent transmission unit is composed of a transmission wheel and a driven gear, and when the rotating seat rotates, gear blocks on the transmission wheel can be intermittently in meshing transmission with the driven gear. The structure is simple, the operation is convenient and fast, and the manufacturing cost is reduced.
Owner:HEFEI UNIV OF TECH

Power supply shell waterproof device

A power supply shell waterproof device comprises an upper shell, a lower shell, a power line and a waterproof part. The waterproof part is integrally formed by a wire sealing position and a shell sealing position which are connected end to end. The power line is provided with a joint and is arranged in the line sealing position through the joint in a sealing way, the upper shell is provided with an upper waterproof rib and is pressed above the line sealing position and the shell sealing position through the upper waterproof rib in the sealing way, and the lower shell is provided with a lower waterproof rib and is pressed below the line sealing position and the shell sealing position through the lower waterproof rib in the sealing way. In the invention, the structure is improved; contact positions among the upper shell, the lower shell, the joint and the waterproof part after assembly are increased to form more fitting surfaces; in addition, gaps formed after the upper shell, the lowershell, the joint and the waterproof part are assembled can be avoided so that water vapor or moisture is completely prevented from entering the upper shell and the lower shell, and waterproof performance of the power supply shell is greatly improved; and a maximum waterproof effect is achieved, use safety of the power supply shell is correspondingly improved, and a service life is correspondinglyprolonged.
Owner:FOSHAN SHUNDE GUANYUDA POWER SUPPLY CO LTD

Vanadium cell stack structure

The invention provides a vanadium cell stack structure which comprises welding flux and a welding groove which are located on the edge of a liquid flow frame, and a positive electrode liquid flow frame and a negative electrode liquid flow frame which are correspondingly arranged are permanently sealed through the welding flux and the welding groove. The liquid inlet and outlet plate unit with an integrated structure is arranged, so that the structural design of an electrolyte pipeline is more flexible, the preparation process difficulty is reduced, the integration degree is improved and the application is expanded; an accommodating space is formed in the liquid inlet and outlet plate unit to embed the collector plate connecting part, so that the liquid inlet and outlet plate unit is hermetically connected with the liquid flow frame; the liquid flow frame is provided with liquid flow frame convex ribs, so that the liquid flow frame is in self-sealing connection with the diaphragm; a sealing ring groove with a sealing ring is formed in the liquid flow frame, so that the sealing connection effect of the liquid flow frame is enhanced; the pressure relief groove is formed, pressure is reduced, and the liquid leakage risk is reduced; the conductive composite material bipolar plate and the liquid flow frame are connected through laser welding; and therefore, the vanadium cell stack structure provided by the invention is stable, reliable, highly integrated, easy to manufacture and low in processing cost.
Owner:杭州中科氢能科技有限公司

Automatic adjusting type water gate device for water conservancy project

The invention relates to the technical field of water conservancy projects, in particular to an automatic adjusting type water gate device for a water conservancy project. The problems that water channels are prone to being blocked by garbage in the irrigation channel, the garbage can enter irrigated farmland along with water flow, and growth of crops is affected are solved; the problems that an existing water gate is simple in function, and solids in water cannot be cleaned are solved. An automatic adjusting type water gate device for a water conservancy project comprises a first fixing plate, a garbage intercepting system and the like. The first fixing plate is connected with a garbage intercepting system. By means of switching between the first object blocking net and the second object blocking net, garbage and floating objects are intercepted in real time in the gate opening and water discharging process, and meanwhile residual garbage and floating objects on the second object blocking net are cleared away by means of real-time rotation of the cleaner; by means of the arc design of the retarder, large stones are retarded and intercepted, so that the stones cannot cross the retarder and are prevented from being gathered at the bottom of the flashboard to affect closing of the flashboard, and the sealing effect of the flashboard is improved.
Owner:濮阳市引黄工程管理处

Shield tunnel sealing gasket waterproof performance testing device

The invention belongs to the technical field of shield tunnel waterproofing, and particularly relates to a shield tunnel sealing gasket waterproof performance testing device which comprises a fixing unit and a pressurizing unit. The fixing unit comprises an arc-shaped block and a control mechanism, an arc-shaped through groove is formed in the arc-shaped block, and a first arc-shaped strip is slidably connected into one side of the arc-shaped through groove; a second arc-shaped strip is slidably connected into the other side; a first arc-shaped clamping block is arranged on the first arc-shaped strip, and a second arc-shaped clamping block is arranged on the second arc-shaped strip; the control mechanism is used for controlling the pressure intensity in the arc-shaped through groove; the pressurizing unit comprises a water injection mechanism and a fixing block, and the fixing block can be attached to the first arc-shaped clamping block and the second arc-shaped clamping block in a sealed mode. A cavity is formed in the fixing block and can be opposite to the joint of the first arc-shaped clamping block and the second arc-shaped clamping block. By using the scheme, the environment of the sealing gasket can be well simulated, and the accuracy of a test result is effectively improved.
Owner:CHONGQING VOCATIONAL INST OF ENG +1

Visual inspection equipment with distance measurement function and lens jitter prevention function

The invention relates to visual inspection equipment with a distance measurement function and a lens jitter prevention function. The equipment comprises a machine body and an operation panel. Slidingrails are arranged on the two sides of the outer wall of the body. A display screen is arranged in the middle of the front of the machine body. The operation panel is distributed at the lower end of the display screen. A fixed head is arranged in the middle of the upper end of the machine body. A telescopic pipe is arranged at the other end of the fixed head. A probe is arranged at the end, away from the fixed head, of the telescopic pipe. External protection structures are arranged on the two sides of the outer walls of the sliding rails. A heat dissipating slot is formed in the middle of thelower end of the machine body, and a micro fan is distributed in the middle of the inner side of the heat dissipating slot. The machine body and the sliding rails are arranged, the sliding rails aresymmetrically distributed along the center line of the machine body, the whole machine body serves as bearing equipment of the equipment, and the outer wall of the machine body is designed into an obtuse angle. Thus, when a user grabs the equipment, the equipment can be well attached to the hand, and the situation that the hand of the user is punctured is avoided.
Owner:DONGGUAN UNIV OF TECH

Engineering building material waterproof detection device and monitoring method thereof

The invention discloses an engineering building material waterproof detection device and a monitoring method thereof.The engineering building material waterproof detection device comprises a first plate body, four first supporting plates are welded to the upper surface of the first plate body, a second plate body is welded to the tops of the four first supporting plates, and four threaded throughholes are symmetrically formed in the upper surface of the second plate body; and the inner side walls of the four threaded through holes are in threaded connection with bolts correspondingly, and theouter side walls of the four bolts are in threaded connection with first fixing plates correspondingly. In the using process, through arrangement of a piston and a first rod body, while water is injected into the shell, a water absorbing plate is driven by the first rod body to get close to a building material; workers do not need to conduct manual fixing, operation steps in the using process arereduced, time and labor are saved, and therefore the detection efficiency of the building materials is improved, the sealing gasket is extruded through the shell, the sealing and fixing effect on thebuilding materials is improved, and the detection result of the building materials is more accurate.
Owner:孙欢
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