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100results about How to "Reduce occlusion" patented technology

Tunnel punching device

ActiveCN224093355UPrevent the threat of falling objectsreduce riskFlushingWater storagePunching
The utility model discloses a tunnel punching device, which belongs to the technical field of tunnel machinery and comprises a bearing plate, a drilling machine, a driving mechanism, a driving mechanism and a driving mechanism. The slag receiving cylinder and the water storage tank are both arranged on the bearing plate, and the drill bit movably penetrates through the bottom wall of the slag receiving cylinder; the annular pipe is arranged on the periphery of the slag receiving cylinder, and a plurality of spray heads are communicated with the annular pipe; the conversion cylinder is arranged on the water storage tank, and the conversion cylinder is connected with a linkage mechanism; according to the scheme, most disintegrating slag generated during punching can fall into the slag receiving cylinder, so that the threat of falling objects is reduced, and the safety protection effect is improved; meanwhile, under the cooperation of the linkage mechanism and the driving mechanism, water in the water storage tank is guided into the conversion barrel through the linkage mechanism, then the water is sprayed out through a spray head on an annular pipe, the sprayed water can conduct dust falling treatment on the periphery of the punching position, and the construction environment and the health of workers are better protected; and moreover, the shielding of dust on the sight line can be reduced, and the punching quality and effect are greatly improved.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1

Underground engineering structure full-space deformation analysis method based on multi-depth camera array

PendingCN121982196ASolve the problem of insufficient scope of worklow costImage enhancementImage analysisPattern recognitionColor image
The invention discloses an underground engineering structure total space deformation analysis method based on a multi-depth camera array, and relates to the field of space deformation, and the method comprises the steps: employing the multi-depth camera array to collect a depth image and a color image of an underground engineering structure, and generating an alignment depth image of each depth camera; performing internal reference calibration on the depth camera, and converting an aligned depth image of the depth camera into three-dimensional color point cloud data of the depth camera; performing external parameter calibration on each depth camera to obtain an optimized transformation matrix from each slave camera to the master camera; transforming the three-dimensional color point cloud data of each subordinate camera to a coordinate system of the main camera by adopting an optimized transformation matrix to obtain a three-dimensional model of the underground engineering structure; and determining corresponding point pairs in the three-dimensional model obtained in different periods, and calculating the Euclidean distance between the corresponding point pairs to realize the full-space deformation analysis of the underground engineering structure. According to the invention, low-cost and high-precision underground engineering deformation monitoring is realized.
Owner:ANHUI UNIV OF SCI & TECH

A common-aperture ultrawideband end-fire antenna embedded in a metal carrier

ActiveCN117239402BSimple structureChange the problem of needing to use a balun for impedance transformationSimultaneous aerial operationsRadiating elements structural formsUltra-widebandCommunications system
An ultra-wideband end-fire antenna with a common aperture embedded in a metal carrier includes a metal cavity with a coaxial cable compartment on one side. A radiator module is connected to the bottom of the metal cavity via a radiator fixing slot. The radiator module includes a common aperture antenna substrate. A low-frequency radiator is printed on the side of the common aperture antenna substrate closer to the coaxial cable compartment, and a high-frequency radiator is printed on the side farther from the coaxial cable compartment. This invention utilizes a dual-band antenna in a common aperture design to enhance the channel capacity and anti-fading capability of the communication system. At the same time, by achieving the antenna's carrier conformal characteristics, high isolation, and miniaturization, it enriches the antenna's application scenarios and improves the overall performance of the communication system.
Owner:XIDIAN UNIV

Intelligent efficient picking robot

The application relates to the technical field of picking robots, in particular to an intelligent high-efficiency picking robot, which comprises a body, a temporary storage box and a mechanical arm are respectively adaptively installed on the body, a camera and a picking mechanism are adaptively installed on the top of the mechanical arm, an outer layer pipe in the picking mechanism is adaptively sleeved with an inner layer pipe with a gap, an inner cavity is formed between the outer wall of the inner layer pipe and the inner wall of the outer layer pipe, a sliding mesh bag is adaptively installed in the inner cavity, and the mesh bag is used for grabbing and picking apples; the picking mechanism is designed as a double-layer pipe structure, the space occupied by picking is greatly reduced, picking is convenient, the picking efficiency is high, the shielding of the camera is reduced, and the picking efficiency is improved.
Owner:HEBEI INST OF MACHINERY ELECTRICITY

Dust collecting device and cleaning apparatus

PendingCN122498751AChange the effective flow arealight in massThermodynamicsCyclonic separation
This disclosure provides a dust collection device and cleaning equipment, belonging to the field of cleaning equipment. The dust collection device includes a dust cup, a cyclone separator, a shielding member, and a drive motor. The cyclone separator is disposed within the dust cup and has a dust discharge side and a clean air discharge side arranged opposite each other along the axial direction of the cyclone separator. The cyclone separator includes multiple cyclone cones, each of which has an exhaust passage communicating with its interior and facing the clean air discharge side. The shielding member is rotatably disposed on the clean air discharge side of the cyclone separator and configured to selectively close at least a portion of the exhaust passage during rotation. The drive motor is disposed on the dust discharge side of the cyclone separator and is drively connected to the shielding member to drive the shielding member to rotate. The dust collection device and cleaning equipment provided by this disclosure can balance separation performance, flow capacity, structural compactness, and switching reliability.
Owner:ZHUIMIFENGXING TECHNOLOGY (SUZHOU) CO LTD

Automatic welding equipment for cabinet machining

The invention provides automatic welding equipment for cabinet processing, which comprises a welding robot and a workbench, and further comprises a pressing and positioning mechanism arranged on one side of the workbench and a cleaning mechanism arranged on the workbench, the pressing and positioning mechanism comprises a sliding rail fixed to one side of the workbench, a moving base arranged on the sliding rail in a sliding mode, a mounting base fixed to the moving base, a rotating shaft rotationally arranged on the mounting base, a supporting plate fixed to one end of the rotating shaft and an electromagnet arranged on the supporting plate. The electromagnet is used for adsorbing and fixing a workpiece to be welded, and the pressing and position adjusting mechanism further comprises a position adjusting assembly used for driving the rotating shaft to rotate so that the supporting plate can be switched between the horizontal posture and the vertical posture; the problems that in existing equipment, workpiece pressing and adjusting are inconvenient, interference is likely to happen in the welding process, and the welding slag cleaning efficiency of a workbench is not high are solved.
Owner:KUNSHAN WEIDEAO METAL PRODUCTS CO LTD

An air respirator mask for quick fixation of Bluetooth microphone

ActiveCN224269947Ureduce occlusionIncrease full field of viewBreathing masksMechanical engineeringBinocular field
This application relates to the field of air respirator masks, and more particularly to an air respirator mask with a quickly fixed Bluetooth microphone, comprising a base, a lens mounted on the outside of the base, and a mouth and nose mask mounted on the lower side of the base. The lens abuts against the side wall of the mouth and nose mask, and a receiving cavity is formed on the upper side of the mouth and nose mask. The Bluetooth microphone is detachably fixed to the inner wall of the receiving cavity. This application has the effect of reducing obstruction of the worker's lower field of vision by changing the installation method of the Bluetooth microphone, thereby increasing the worker's full field of vision and binocular field of vision.
Owner:SHANGHAI BAOYA SAFETY EQUIP

Refrigeration appliances

ActiveCN116928919Breduce occlusionEasy to take iceIce storageRefrigeration
This invention provides a refrigeration appliance. The refrigeration appliance includes an ice-making chamber with an opening. An ice maker and an ice storage box are installed inside the ice-making chamber, with the ice storage box comprising a body that is open at one end facing the chamber opening. The ice storage box also includes a shielding portion at the open end of the body and a first connecting member disposed away from the open end. The shielding portion is at least partially expandable towards the chamber opening. The body is suspended inside the ice-making chamber via the first connecting member and can pivot around the first connecting member. This design facilitates ice retrieval for the user.
Owner:QINDAO HAIER REFRIGERATOR CO LTD +1

A highway crash barrier

The application discloses a highway anti-collision guardrail, relates to the technical field of road safety equipment, and comprises a stand column, a cap, a bracket, connecting bolts, anti-theft nuts, a hook connecting rod and corrugated plates. One end of the stand column is provided with a connecting plate. The cap is arranged at the end of the stand column far from the connecting plate. The bracket is arranged on the stand column close to the cap. The connecting bolts are arranged in sequence through the bracket and the stand column, and the bracket is connected to the stand column. The anti-theft nuts are connected to the ends of the connecting bolts far from the bracket. The hook connecting rod comprises a first rod body, a second rod body and a rotating piece. One end of each of the first rod body and the second rod body is connected to the rotating piece. The end of the first rod body far from the rotating piece is provided with a limiting ring, the limiting ring is arranged on the connecting bolt, the end of the second rod body far from the rotating piece is connected to the cap, and the rotating piece can adjust the included angle between the first rod body and the second rod body. The corrugated plates are arranged on the bracket. The scheme has the effects of expanding the maintenance visual field and improving the maintenance efficiency.
Owner:CHINA RAILWAY 21TH BUREAU GROUP

Liquid cooling row and CPU liquid cooling heat dissipation device

ActiveCN224609462UGuaranteed visual effectimprove perception
The utility model discloses a liquid cooling row and CPU liquid cooling heat abstractor, the liquid cooling row includes liquid inlet cavity, exchange cavity, liquid outlet cavity, a plurality of radiators, liquid inlet connector and liquid outlet connector, and the liquid inlet connector and liquid outlet connector are all corner connectors of 90 degree corner, and the CPU liquid cooling heat abstractor including this liquid cooling row still includes fan, liquid inlet pipe, liquid outlet pipe and liquid cooling head, and it sets up parallelly liquid outlet connector and fan, and the CPU liquid cooling heat abstractor sets up the side of liquid inlet pipe and liquid outlet pipe parallel to the liquid cooling row, under the condition of high -efficient utilization limited space, makes the case inside appearance sense remarkable promotion to reduce the bending of liquid inlet pipe and liquid outlet pipe, reduces the risk of liquid leakage, and can guarantee the heat dissipation effect.
Owner:GUANGDONG CORAL CRUSH TECHNOLOGY CO LTD

An oral cavity orthodontic mouth opener

The application belongs to the technical field of medical devices, and discloses an oral cavity orthodontic mouth gag, which comprises a mouth gag body and a saliva suction pipe, the mouth gag body is provided with an upper lip supporting part, the upper lip supporting part is provided with a groove, the inner side of the groove is provided with a flexible adjusting bag, the upper lip supporting part is connected with an adjusting assembly, the adjusting assembly comprises an outer cylinder and a piston assembly, the outer cylinder is communicated with the flexible adjusting bag through a conduit, the conduit arranged at both ends of the outer cylinder is provided with a one-way valve, the mouth gag body is connected with a cheek opening part through an adjusting part, the cheek supporting part is connected with a clamping part, and the mouth gag body is further connected with a sleeve ring which is arranged in cooperation with the saliva suction pipe. The application adjusts the inflation state of the flexible adjusting bag on the inner side of the upper lip supporting part by means of the adjusting assembly, so as to adjust different opening degrees and improve the comfort when the upper lip is opened; the connecting position and angle of the cheek opening part and the mouth gag body are adjusted, so as to adjust the opening position and expose the visual field of the corresponding position.
Owner:PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)

An unmanned aerial vehicle antenna support

ActiveCN224652699Ureduce occlusionReal-time posture compensation
The utility model relates to the field of antenna support discloses an unmanned aerial vehicle antenna support including low shelter bionical support structure, low shelter bionical support structure includes support frame, the inner wall fixedly connected with support rod of support frame, the inner wall fixedly connected with mounting rod of support frame, the bottom outer wall rotationally connected with gyroscope structure of mounting rod, the gyroscope structure includes first ring, the inner wall rotationally connected with second ring of first ring, the inner wall rotationally connected with third ring of second ring, the inner wall rotationally connected with signal receiver of third ring through pivot. In the utility model, through setting up low shelter bionical support structure, reduce the support to the signal shelter, and reduce the weight of self, through setting up gyroscope structure, realize antenna real -time attitude compensation, make signal receiver always steady point to target, solve the problem that the antenna is easy to disconnect with ground because of fuselage attitude change.
Owner:JIANGSU WEIHANG JINGYI TECH CO LTD

A photovoltaic cell string manufacturing apparatus

This invention discloses a photovoltaic cell string manufacturing equipment, which includes a feeding mechanism, a ribbon feeding mechanism, a fixture loading and unloading mechanism, a welding mechanism, a coating and curing mechanism, and a cell string conveying mechanism. Through a traction mechanism and a robotic arm, multi-strand ribbons cut to the required process length and cell sheets are sequentially placed, allowing adjacent cells to be pre-welded into a cell string by the multi-strand ribbons on their front and back sides. In subsequent processes, adhesion points are coated on the front and back of the cell string, and curing thoroughly eliminates the risk of poor overlap. This eliminates the need for composite films and PAD points on the front and back of the cells, reducing shading on the photovoltaic cell surface and the use of silver paste, thus significantly reducing costs.
Owner:SUZHOU MAIZHAN AUTOMATION TECH CO LTD

Silicon carburizing / carburizing tool for producing carbon fiber reinforced ceramic-based cylinder material

A siliconizing carbon / carbon tool for producing a carbon fiber reinforced ceramic-based cylinder material comprises a siliconizing furnace, a protective cover, an outer cooling cylinder, a motor bearing table, a part to be siliconized, a graphite rod, a cooling cylinder mounting nut, a cooling pipe, a graphite rod butt joint block, a driven chain wheel, a transmission chain, a driving motor, a driving chain wheel and a butt joint screw. The inner siliconizing groove is located in the middle, the silicon powder containing grooves are distributed in the side face of the inner siliconizing groove, the inner siliconizing groove and the silicon powder containing grooves are separated through the partition plate, gaseous silicon seepage holes are formed in the surface of the partition plate, and the gaseous silicon seepage holes, the inner siliconizing groove and the silicon powder containing grooves are communicated with one another. The side face of the siliconizing furnace is provided with two sets of graphite rod installation grooves and four sets of cooling cylinder installation screws, the two sets of graphite rod installation grooves are symmetrically arranged, and the cooling cylinder installation screws are located on the two sides of the graphite rod installation grooves.
Owner:KYBEN CARBON NEUTRAL (TIANJIN) NEW MATERIALS CO LTD

A laminated solar cell and a method of manufacturing and use thereof

PendingCN122602738AImprove photoelectric performanceImprove photoelectric conversion efficiency
This invention relates to a tandem solar cell, its fabrication method, and its application. The tandem solar cell comprises a top layer of perovskite cells and a bottom layer of back contact cells stacked sequentially from top to bottom. The perovskite cells include a front glass layer, a first passivation layer, a perovskite composite layer, and a second passivation layer stacked sequentially from top to bottom. The perovskite composite layer includes at least two polar perovskite regions and perovskite electrodes disposed on both sides of each polar perovskite region in a first direction. The back contact cells include a back glass layer, a back electrode layer, and a crystalline silicon layer stacked sequentially from bottom to top. In the solar cell provided by this invention, the perovskite composite layer of the perovskite cell is designed with a specific structure using polar perovskite and perovskite electrodes to form a built-in electric field, driving the directional movement of electron-hole pairs to generate current. Combined with the introduction of the back contact cells, more solar radiation is received, thus improving the performance of the tandem solar cell.
Owner:DAS SOLAR CO LTD

Ship engine maintenance platform

PendingCN121821294ASolve the problem of being unable to perform multi-dimensional adjustmentsAddress fall risk situationsWork benchesServicing equipmentMarine engineering
The invention relates to the technical field of ship maintenance equipment, in particular to a ship engine maintenance platform which comprises a bottom plate, a radial adjusting structure, a hoisting structure, an overturning structure and a supporting structure. Compared with the prior art, the lifting structure has the advantages that lifting, overturning and supporting structures are combined, the problem that a lifting structure has the falling risk is solved, the problem that an independent maintenance supporting platform cannot be subjected to multi-dimensional adjustment is solved, meanwhile, a first servo motor, a driving gear, a rotating shaft and a driven gear are arranged, and a power source is provided through the first servo motor; the first servo motor drives the driving gear fixed to the output shaft of the first servo motor to rotate, then the driven gear meshed with the driving gear rotates, the rotating shaft rotates, then the first rotating disc connected with the hoisting structure rotates, and therefore radial rotation of the hoisting structure is completed. And the multi-dimensional adjustment effect of the ship engine maintenance platform is further improved.
Owner:DONGGUAN ZHONGLIAN SHIPPING ENG CO LTD

Flow conversion tool driving structure, clamping type battery cell entering shell device and assembly welding line

ActiveCN224645878UOptimize layoutReduce the difficulty of layout
The utility model discloses a kind of flow fixture transmission structures, clamping type electric core into shell device and assembly welding line, wherein flow fixture includes first tooling and second tooling, second tooling has first state and second state, in second state, first semi-finished product and second semi-finished product are close to each other, to make first semi-finished product and second semi-finished product connect or assemble;Further include driving mechanism, driving mechanism has first position and second position, in second position, driving mechanism is drivingly connected with second tooling, driving mechanism can drive second tooling to move, to make second tooling switch to second state.A kind of flow fixture transmission structures, clamping type electric core into shell device and assembly welding line of the utility model, can cancel the power component on flow fixture, reduce equipment cost, simplify the arrangement of flow fixture, reduce the arrangement difficulty of flow fixture, be favorable to reduce the volume of flow fixture, reduce the weight of flow fixture, reduce flow difficulty and flow cost.
Owner:GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD +1

A paint spraying device for producing a stop valve

ActiveCN224293614UAchieve full paintingEasy to paintSpray boothsGear wheelSpray painting
The utility model belongs to the cut -off valve production field, specifically speaking is a kind of cut -off valve production and paint spraying equipment, including processing station, the side of processing station is rotatably connected with door leaf, the side of processing station is provided with paint spraying subassembly, and the inner chamber sliding connection of processing station is provided with mounting panel, and the side of mounting panel is provided with clamping subassembly;The utility model through the operation of first servo motor, utilize the arc slot of the one side of rotary block and drive sliding bar to slide in the inside of sliding slot, and move together when sliding, realize the fixation to cut -off valve, the operation of second servo motor can be driven by gear teeth driving driven gear, realize the slow rotation to cut -off valve, when being fixed, paint spraying to cut -off valve, can reduce the obstruction to the surface of cut -off valve, and when adjusting the angle of cut -off valve, can more conveniently rotate cut -off valve, improve the convenience and paint spraying efficiency when cut -off valve is paint sprayed.
Owner:WUXI HUAYI POWER VALVE CO LTD

A shelf integrated with a spraying channel and an air duct and a cleaning device

ActiveCN224712588UImplement integrated layoutreduce occlusion
The utility model provides a kind of integrated spray channel and air duct's shelf and cleaning device, wherein spray channel includes shelf body, and spray part is equipped on shelf body, and spray part contains the protruding edge of the spray pipeline shell and shelf body bottom integrated molding, and spray pipeline shell is located below shelf body, and its top edge is coincident with protruding edge and is connected with shelf body bottom;Shelf body and spray pipeline shell are connected to form spray cavity, and multiple groups of spray nozzles are equipped on shelf body, and spray nozzle is through with spray cavity, and multiple groups of spray nozzles form spray channel by spray cavity.The design is through the cooperation of shelf body and spray pipeline shell to build spray channel, utilize protruding edge to improve the sealing property of spray cavity, realize water flow uniform spray by multiple groups of spray nozzles, can reduce the space occupation of spray channel, lay foundation for subsequent integrated air duct, solve the problem that traditional cleaning device shelf spray channel independent layout occupies space, influence cleaning effect.
Owner:甘丽华

Secondary battery and electronic device

Provided are a secondary battery and an electronic device, the secondary battery comprising: a housing comprising a shell and a cover plate, one end of the shell forming an opening, the cover plate covering the opening and being connected to the shell, the cover plate being provided with an explosion-proof valve; the electrode assembly is accommodated in the shell, and the electrode assembly comprises a tab facing the cover plate; the current collecting component is in welded connection with the tabs; the flow collecting component is provided with an annular first weak part and a plurality of second weak parts, the projection of the anti-explosion valve in the axial direction of the flow collecting component is located in an area surrounded by the first weak part, the second weak parts are arranged around the center of the flow collecting component, and each second weak part longitudinally extends in the radial direction of the flow collecting component. The annular first weak part surrounds the second weak parts, and the strength of the second weak parts is larger than that of the annular first weak part. According to the technical scheme, at least the central area of the current collecting component can be effectively opened during pressure relief, and the pressure is sprayed out along with the anti-explosion valve, so that the safety performance of the battery is improved.
Owner:ENVISION RUITAI DYNAMICS TECH (SHANGHAI) CO LTD +1

Vehicle control method and device, vehicle and storage medium

This application discloses a vehicle control method, device, vehicle, and readable storage medium. The method includes: during vehicle operation, determining whether there is a neighboring vehicle in the adjacent lane that meets preset conditions, wherein meeting the preset conditions includes: the size of the neighboring vehicle is greater than a preset size and the longitudinal distance between the neighboring vehicle and the vehicle is less than a first preset distance; if there is a neighboring vehicle that meets the preset conditions, controlling the vehicle speed to be less than the speed of the neighboring vehicle that meets the preset conditions. The method of this application improves the safety of vehicle operation.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

A three-way common-aperture hetero-frequency decoupling series-fed antenna and radio frequency communication equipment

PendingCN122552820ASmall caliberAchieve cross-frequency decoupling
The application discloses a three-working-mode common-aperture different-frequency decoupling series-fed antenna and a radio frequency communication device, which has three independent input ports, each of which supports one working frequency band, and the three input ports are supported by three coaxial feed lines, the three coaxial feed lines include a first coaxial feed line, a second coaxial feed line and a third coaxial feed line, and the application comprises a multi-frequency series-fed radiator, which is provided with a multi-frequency current regulation structure and is used for realizing horizontal omnidirectional high-gain vertical polarization radiation mode of three working frequency bands; and a filtering structure, each working frequency band corresponds to one filtering structure, and the filtering structure is used for realizing independent working response of the three working frequency bands and high isolation between different-frequency ports. Through the design of the multi-frequency series-fed radiator and the filtering structure, the antenna realizes three-working-mode common-aperture working through a single antenna body and has the characteristics of high-gain horizontal omnidirectional radiation and different-frequency decoupling.
Owner:SOUTH CHINA UNIV OF TECH

Solar photovoltaic panel fixed frame

The utility model relates to photovoltaic panel technical field, concretely is a solar photovoltaic panel fixed frame. Including fixed base, the first support rod is symmetrically set to the upper position of fixed base left and right, the second support rod is symmetrically set to the lower position of fixed base left and right, the first support rod each other is close to one end, and the second support rod each other is close to one end respectively through the tooth engagement drive, the length adjustment mechanism is set to the position between the first support rod, the first support rod and the second support rod are away from the fixed base one end rotationally arranged with the clamping block, and the first support rod and the second support rod are all telescopic rods. Reduce the frame to photovoltaic panel's shelter, simultaneously can be applicable to the use of different size photovoltaic panel.
Owner:ANHUI YIHE SOLAR POWER CO LTD

A multi-baffle linkage plate group and a range hood

This invention belongs to the field of range hood technology and discloses a multi-baffle linkage plate assembly and a range hood. The multi-baffle linkage plate assembly includes a driving device and a baffle assembly. The driving device is installed inside the range hood housing. The baffle assembly includes a first baffle and a second baffle that are rotatably connected. The first baffle is rotatably connected to the top of the opening side of the range hood housing. The driving device can simultaneously drive the first and second baffles to rotate outward, expanding the smoke collection space, providing better smoke blocking effect, and reducing obstruction of the user's view. There is no movement interference between the first and second baffles, and the smoke intake formed by the range hood is closer to the smoke generation area, resulting in better smoke extraction. The range hood of this invention uses the above-mentioned multi-baffle linkage plate assembly, which provides good smoke extraction effect, and the baffles do not obstruct or interfere with the user's view, thus improving the user experience.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD

Oxidant decomposition phase transition and concentration dynamic measurement device

The application provides an oxidant decomposition phase change and concentration dynamic measurement device, and belongs to the field of gas-liquid two-phase flow characteristic testing. The device solves the problems that existing measurement devices cannot simultaneously reproduce high-speed disturbance, temperature and pressure alternation and heating coupling conditions, and cannot accurately control temperature and dynamically measure concentration in the process of oxidant decomposition and combination in a narrow, closed and strongly corrosive environment. The device comprises a container, a pressure relief assembly arranged in the container, a gas supply assembly for inputting gas with a preset pressure into the container, a concentration detection loop, a quasi-static concentration detection branch and the container form a loop, a dynamic concentration detection branch is connected in parallel with the quasi-static concentration detection branch and is controllable in on-off, and a second heating assembly is coupled to the dynamic concentration detection branch. A cooling assembly is used for cooling and conveying the solution in the concentration detection loop back into the concentration detection loop. The device is mainly used for oxidant decomposition phase change and concentration dynamic measurement.
Owner:HARBIN INST OF TECH +1

Multifunctional anti-bird cover for electrified railway

The utility model relates to the technical field of electrified railway application, in particular to a multifunctional anti-bird cover for an electrified railway, which comprises a first mounting sheath and a second mounting sheath which are arranged oppositely, and the sides, close to each other, of the first mounting sheath and the second mounting sheath are detachably connected. The first mounting sheath and the second mounting sheath are hollow, a mounting sheath cavity is formed between the first mounting sheath and the second mounting sheath, and one end of the first mounting sheath extends forwards to be provided with an arc-shaped cover body. According to the utility model, the structure is novel, the design is ingenious, the moving or staying frequency of birds on the umbrella skirts of the insulator chain is reduced, the amount of bird droppings on the umbrella skirts of the insulator chain is reduced, the influence of the bird droppings on the insulation performance of the insulator chain is reduced, the reliability and safety of an overhead line on an electrified railway are improved, and a certain shielding effect is achieved; and external corrosion is reduced, so that the multi-functional effect is achieved.
Owner:DONGGUAN GAONENG IND CO LTD

Arcuate surface directional hole positioning tool for nuclear power plant maintenance

The application relates to a curved surface directional hole positioning tool for nuclear power plant maintenance, which comprises a clamping piece, a directional ball, a fixing piece and a guide pipe, the clamping piece is provided with a clamping channel matched with a to-be-holed piece; the clamping piece is also provided with a positioning hole; the directional ball is spherical and is provided with a mounting channel; the directional ball is rotationally arranged in the positioning hole; the fixing piece is capped on the directional ball and is connected with the clamping piece; the guide pipe is arranged in the mounting channel; the guide pipe is provided with a through hole for a hole tool to pass through; the application can avoid the problem that the hole tool slips during hole drilling on a curved surface and causes the hole center to deviate; and the guide pipe with different through hole diameters can be replaced to meet the requirements of different hole diameters. For different hole angles, a prefabricated tool is not needed, the tool does not need to be replaced, and only the angle of the directional ball needs to be adjusted, so that time consumption, manpower consumption and cost can be reduced.
Owner:YANGJIANG NUCLEAR POWER +1