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69 results about "Peephole" patented technology
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A peephole, peekhole, spyhole, doorhole or door viewer, is a small opening through a door allowing an individual to look from the inside to the outside. In a door, usually for apartments or hotel rooms, a peephole allows the person behind the door the security of seeing outside without opening the door. Glass peepholes are often fitted with a fisheye lens to allow a wider field of view from the inside and little to no visibility from the outside.
Door mirror structure
Owner:MAZDA MOTOR CORP
Quantitative fish feed feeder
The quantitative fish feed feeder is characterized in that a feed distributing assembly is arranged on a bottle opening of a storage tank and comprises a feed distributor and a protective shell, a circle of annular groove is formed in the middle of the feed distributor, a feed inlet is formed in a top plate of the annular groove, and a discharge outlet is formed in a bottom plate of the annular groove; a rotatable gram number ring is arranged on the distributor; the protective shell is rotatably arranged on the distributor in a sleeving mode, a plurality of partition bins are arranged on the inner side of the protective shell, the partition bins are equal in capacity, can rotate in the annular groove and respectively rotate to be independently opposite to the feeding port or the discharging port, and a peeping port is formed in the surface of the protective shell and used for displaying the reading number of the gram number ring. When the device is used, the protective shell is rotated to drive the partition bin to move between the feeding port and the discharging port, and feed is quantitatively subpackaged in the partition bin through the feeding port and then is rotated to the discharging port to be put; in the process, the reading is changed along with the rotation of the protective shell through the peephole, so that the statistical function is realized.
Owner:NANJING VOCATIONAL UNIV OF IND TECH
Surrounding rock fracture monitoring method and device based on borehole peeping
The invention provides a surrounding rock fracture monitoring method and device based on borehole peeping. The method comprises the following steps: acquiring depth image data of a rock stratum in a peephole at a loose circle distribution position in a roadway surrounding rock through a borehole peeping instrument; the drilling peeping instrument is integrated by a depth camera; according to the depth image data, obtaining visual point cloud data of a rock stratum in the peephole; based on the visual point cloud data, a trained target recognition model is adopted to recognize fractures of the rock stratum in the peephole, so that fracture point cloud information of the fractures in the rock stratum in the peephole is obtained; and analyzing the fracture point cloud information of the fracture to obtain target monitoring information of the fracture in the rock stratum in the peephole. According to the method, the drilling observation instrument is combined with the depth camera and the target identification model, automatic and rapid identification and analysis of the rock stratum fractures at the distribution positions of the loose circles in the surrounding rock of the roadway are achieved, monitoring of the rock stratum fractures is achieved, limitation of traditional human eye observation is eliminated, and powerful technical support is provided for safe production and efficient mining of a coal mine.
Owner:CHINA COAL RES INST +1
Door mirror mounting seat
Owner:JIANGMEN SHONGLI REARVIEW MIRROR INDAL
Portable filter pressure relief observer
The utility model discloses a portable filter pressure relief observer which comprises a sight glass, and a one-way valve is arranged at an outlet of the sight glass to prevent oil from flowing backwards. A portable emptying valve is arranged at the bottom of the sight glass, so that timely emptying after pressure relief of the filter is facilitated, and next observation is not affected. The problems that an existing sight glass is not tight in sealing, glass is fragile, oil flows backwards and maintenance is difficult are solved, and the process safety and the convenience of equipment maintenance are improved.
Owner:SOUTH CHINA BLUESKY AVIATION OIL & GAS CO LTD
Connection structure of door outside molding and door mirror
To provide a connection structure which connects a molding and a door mirror via a connection plug, thereby enabling suppression of occurrence of a clearance and a step between both parts.SOLUTION: A molding 11 has a first insertion hole 17 in which one end part 22a of a connection plug 22 in a longer direction can be inserted. A first lock hole 18 is formed in one side wall 24 constituting the first insertion hole. A base member 19 has a second insertion hole 20 in which the other end part 22b of the connection plug can be inserted, and a second lock hole 21 is formed in one side wall. One end part of the connection plug is provided with an elastically deformable first lock part 26 of which an inclined apical surface 26c is locked to a hole edge part 18a of the first lock hole when inserted into the first insertion hole, and an outer periphery of the other end part is provided with an elastically deformable second lock part 27 of which an inclined apical surface 27c is locked to a hole edge part 21a of the second lock hole when inserted into the second insertion hole.SELECTED DRAWING: Figure 8
Owner:KINUGAWA RUBBER IND HOLDINGS CO LTD
Prevention and control method and system for caving disaster of coal face roof
The invention provides a coal face roof caving disaster prevention and control method and system, and the method comprises the steps: obtaining the geological information of each rock stratum corresponding to a stope face open-off cut through the punching of a peephole; based on the geological information, a plurality of pressure relief drill holes are formed in the corresponding coal pillar side close to the open-off cut, and the hard rock stratum of the top plate is presplit through pressure relief treatment, so that the top plate at the open-off cut is converted into a cantilever structure from a beam-shaped structure; monitoring equipment is arranged, and a plurality of buffer cushion layers are arranged on a bottom plate of the goaf; and judging whether to adjust the buffer cushion layer or not by combining the impact data, collected by the monitoring equipment, of the roof during collapse, the first collapse step pitch of the roof under the cantilever structure and the related parameters of the open-off cut. According to the method, the initial caving step pitch of the roof can be reduced, huge dynamic pressure generated during roof caving can be relieved, roof caving disasters are comprehensively prevented and controlled from multiple angles, and the prevention and control effect on the roof caving disasters is improved.
Owner:CCTEG COAL MINING RES INST +2
Unattended monitoring device for mixed bed resin
ActiveCN223517547UIon exchange regulation/controlTelemetry/telecontrol selection arrangementsComputer hardwareMonitoring system
The utility model discloses an unattended monitoring device for mixed bed resin, which comprises a visual sensor, a micro sensor, a wireless signal transceiving processing module and a monitoring center, and the mixed bed comprises a first high-speed mixed bed and a second high-speed mixed bed, visual sensors are arranged on observation windows of the first high-speed mixed bed and the second high-speed mixed bed, wireless signal transceiving processing modules are arranged on the side walls, micro sensors are arranged on the bottom walls, and the visual sensors and the micro sensors are connected to the wireless signal transceiving processing modules through connecting wires. The wireless signal transceiving processing module comprises a wireless module and a signal processing module, and data collected by the visual sensor and the micro sensor are processed by the signal processing module and then transmitted to the monitoring center server through the wireless module. According to the utility model, a manual monitoring peephole is optimized into a visual and intelligent monitoring system, manual judgment on whether the resin bed fails and is put into operation is optimized into full-automatic intelligent identification judgment, and manual regeneration of failed resin is optimized into full-automatic intelligent regeneration.
Owner:SHENZHEN CM ELECTRIC TECH CORP LTD
High-temperature monitoring device for flash furnace nozzle
The invention discloses a flash furnace nozzle high-temperature monitoring device, and relates to the field of flash furnace nozzle high-temperature monitoring, the flash furnace nozzle high-temperature monitoring device comprises a monitoring assembly, the monitoring assembly comprises a shell, a camera is installed in the shell, the tail end of the camera is fixedly connected through a connecting piece, the connecting piece is a pipe fitting, and the connecting piece is connected with the shell. A wire used for guiding connection of the camera is electrically connected with a circuit board installed at the tail end of the shell. The special high-temperature-resistant alloy material is adopted as the camera probe protection cylinder, so that the camera probe protection cylinder has good corrosion resistance and high-temperature resistance, and can resist the high temperature of 1600 DEG C under the condition that a cooling medium meets operation conditions. As the camera probe protection cylinder adopts a pinhole imaging technology, and a peep hole at the front end of the camera probe protection cylinder is designed to be 6mm, dust is difficult to enter the camera probe protection cylinder, and the camera probe protection cylinder has good positive pressure resistance and thermal radiation resistance. Therefore, the maintenance workload of the system is greatly reduced. In addition, a water-cooling type or air-cooling type camera probe protection cylinder can be selected according to the condition of a cooling medium of a user.
Owner:JINLONG COPPER
Smart lock cat's eye lever structure and smart lock
The present invention discloses a smart lock peephole lever structure and a smart lock. The smart lock includes a face shell, a face cover disposed on the face shell, and a rotating shaft disposed within the face shell. The smart lock peephole lever structure includes a peephole block, a peephole cam, and a return spring. The peephole block is rotatably disposed on the face cover. The upper end of the peephole cam is clamped within the face shell and can move up and down relative to the face shell under the drive of the peephole block. The return spring is sleeved on the peephole cam. The rotating shaft is provided with a groove corresponding to the peephole cam. The bottom of the peephole block contacts the top of the peephole cam. Compared with the prior art, the present invention is simpler and more convenient to assemble. When the peephole block is rotated, the force is balanced, the sliding is smooth, and the hand feel is good.
Owner:SHENZHEN ZHAOCHI DIGITAL TECH CO LTD
Surge early warning system, surge early warning method and engine
The invention belongs to the technical field of gas compressors, and provides a surge early warning system, a surge early warning method and an engine, the surge early warning system comprises a gas compressor, a blanking cap, a probe, a processing module and an alarm module; wherein a plurality of peepholes are formed in the surface of the gas compressor, and the plurality of blanking caps are mounted in the corresponding peepholes; part of the blanking cap is connected with the probe, and one end, far away from the blanking cap, of the probe is connected with the processing module; and the alarm module is connected with the processing module. A traditional engine blanking cap is improved, so that part of the blanking cap can be directly connected with a probe, the blanking cap becomes a switching structure for installing the probe, and early warning signal detection can be completed through simple blanking cap modification for a shaped engine model; the first blanking cap can be installed on the surface of a circumferential casing of a stator blade of a multi-stage gas compressor, when the gas compressor works, the probe connected with the first blanking cap can monitor all stages of enhanced gas flow in the gas compressor in real time, and therefore data support is provided for surge early warning.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST
Guide ring for sight glass of reduction furnace
The utility model discloses a reduction furnace sight glass flow guide ring, which relates to the technical field of sight glass flow guide rings, and comprises a reduction furnace sight glass flow guide ring body and a reduction furnace sight hole body, the reduction furnace sight glass flow guide ring body is divided into a flow guide ring outer ring and a flow guide ring inner ring, the flow guide ring outer ring is arranged on the outer side of the flow guide ring inner ring, and the flow guide ring outer ring is arranged on the outer side of the flow guide ring inner ring. According to the flow guide ring for the sight glass of the reduction furnace, purging hydrogen and a mixer in the reduction furnace are subjected to collision reverse blowing isolation at the necking-down position of the inner ring of the flow guide ring, and mixed gas (such as chlorosilane, hydrogen and hydrogen chloride in the CVD reduction furnace) on the outer side of the inner ring of the flow guide ring is purged; then the sight glass is used for purging hydrogen to reversely blow the mixed gas into the reduction furnace, and finally, as the mixed gas cannot be in direct contact with the sight glass, silicone oil can be prevented from being generated on a quartz lens of the sight glass, and the quartz lens of the sight glass is ensured to be clean and clear.
Owner:NINGXIA CRYSTAL NEW ENERGY MATERIALS CO LTD
Prevention method and system for roof caving disaster in coal mining face
The present application provides a method and system for preventing and controlling roof caving disasters in coal mining faces. The method includes: obtaining geological information of each rock stratum corresponding to the cut-through of the coal mining face by drilling peepholes; based on the geological information, drilling a plurality of pressure relief holes on the side of the coal pillar corresponding to the cut-through, and pre-cracking the hard roof rock stratum through pressure relief treatment to convert the roof at the cut-through from a beam structure to a cantilever structure; setting monitoring equipment and arranging multiple groups of buffer cushions on the floor of the goaf; combining the impact data collected by the monitoring equipment during roof caving, the initial caving step distance of the roof under the cantilever structure and the relevant parameters of the cut-through to determine whether to adjust the buffer cushions. This method can reduce the initial caving step distance of the roof and relieve the huge dynamic pressure generated during roof caving, comprehensively prevent and control roof caving disasters from multiple angles, and improve the prevention and control effect of roof caving disasters.
Owner:CCTEG COAL MINING RES INST +2
Self-luminous peep hole structure with concave-convex positioning function
The utility model relates to a self-luminous peep hole structure with concave-convex positioning, which comprises a peep hole main body, both sides of the peep hole main body are provided with mounting holes, self-luminous materials are embedded in the mounting holes, the inner side of the peep hole main body is provided with a peep hole, and both the top end and the bottom end of the inner wall of the peep hole are provided with positioning points. Through the arrangement of the self-luminous material, the peep hole structure can continuously emit soft and lasting light in a dim light or dark environment, and a clear observation condition is provided for a user. Therefore, a user can accurately and quickly overlook the sighting telescope, the overlook convenience and timeliness are improved, and the sighting telescope hole structure is more convenient and stable during use due to the concave-convex positioning design. Through the arrangement of the positioning points, a user can more quickly and accurately observe the position of the sighting device through the sighting hole sleeve, the operation difficulty and the time cost are reduced, and the problems that the precision of the sighting device is poor when the sighting device is observed through the sighting hole sleeve at present and sighting hole imaging is blurred in weak light and dark environments are effectively solved.
Owner:彭海涛
Mechanical drilling speed prediction method based on CPLNet
The invention discloses a mechanical drilling speed prediction method based on CPLNet. The method comprises the steps that drilling parameters are collected and preprocessed; the drilling parameters comprise bit pressure, rotating speed, torque, well depth, natural gamma, resistivity, pumping pressure, displacement, rock density and drilling fluid density; extracting spatial features and time features of the preprocessed drilling parameters; performing channel dimension splicing on the spatial features and the time features to obtain combined features; performing fusion weighting on the combined features to obtain fusion features; and the mechanical drilling speed is predicted through a full-connection network based on the fusion features, and a drilling speed prediction value is obtained. According to the method, Peephole-LSTM and CBAM attention mechanisms are combined, feature association and long memory are captured, long-term dependence is overcome, and the drilling speed is accurately predicted.
Owner:SOUTHWEST PETROLEUM UNIV
Atomizing nozzle base
The utility model discloses an atomizing nozzle base, which comprises a nozzle base part, a plurality of atomizing nozzles, a plurality of atomizing nozzles, a plurality of atomizing nozzles and a plurality of atomizing nozzles, and is characterized in that the nozzle base part comprises a base body, a connecting ring and a cavity; the connecting ring is fixed to the edge of the inner side of the upper end of the base body, the inner side of the connecting ring is in threaded connection with an atomizing nozzle body, the cavity is formed in the middle of the base body and is conical, and the diameter of the cavity is sequentially increased from top to bottom; the nozzle base part further comprises a peephole; the peephole is formed in one side of the outer surface of the base body in a penetrating mode and communicates with the cavity. The base body is made of stainless steel. The utility model relates to a base of an atomizing nozzle, and aims to solve the problems that in the atomizing treatment of molten steel, the middle part of the base of the existing atomizing nozzle is designed into a cylindrical cavity structure, but the atomized and sprayed molten steel is very easy to adhere to the inner side wall of the cavity in the use process, the powder yield is reduced, and the burning phenomenon is severely caused.
Owner:KENNAMETAL STELLITE METALS (SHANGHAI) CO LTD
Monitoring device and door
The utility model discloses a monitoring device and a door, and relates to the technical field of monitoring. The monitoring device comprises a monitor, a cover plate A and a cover plate B. The cover plate A and the cover plate B are parallel to each other and are coaxially arranged, and the monitor is installed on the side wall, away from the cover plate A, of the cover plate B; the inner threaded sleeve column is integrally arranged at the center of the side wall, close to the cover plate A, of the cover plate B and extends towards the cover plate A. According to the monitoring device and the door, through the matched design of the cover plate A, the cover plate B, the internal thread sleeve column, the external thread rod and the rotary knob, the monitor can be installed in the positioning installation groove and the cat eye hole in the door body, installation can be completed through the cat eye hole in a traditional door, installation is simple and efficient, disassembly and assembly need to be completed on the indoor door side, and safety and reliability are achieved; compared with a monitoring device integrated in the intelligent door lock, the intelligent door lock monitoring device has the advantages that the size of the intelligent door lock monitoring device allows longer endurance and use of a higher-definition camera assembly.
Owner:GUANGZHOU VOCATIONAL COLLEGE OF TECH & BUSINESS
Coaxial connector and intermodulation test method
PendingCN119310312AAccurate and fast positioningReduce maintenance difficultyElectrical testingElectromagentic field characteristicsTelecommunications linkPeephole
The invention discloses a coaxial connector and an intermodulation test method, and belongs to the field of communication circuits. The coaxial connector comprises a connector body, a shell and a cover body, wherein the connector body is of a hollow structure; the connector body penetrates through the shell, the shell is provided with a peeping hole communicated with the connector body, and the peeping hole is used for inserting a near-field probe; the cover body is detachably connected with the peeping hole, and the cover body, the connector body and the shell jointly define a shielding cavity. According to the invention, the method can achieve the inter-modulation test of the coaxial connector through employing a near-field radiation test method, can quickly and accurately locate an area with the prominent inter-modulation in the coaxial connector, does not need to dismount the coaxial connector for the inter-modulation test, does not need to shut down a communication link of a mobile communication system, does not need to stop the service, reduces the maintenance difficulty, and improves the efficiency. And the influence range during maintenance is reduced.
Owner:BEIJING SMARTCHIP MICROELECTRONICS TECHNOLOGY CO LTD +1
Blast furnace tuyere monitoring device
PendingCN119530476AAccurate temperature valuehigh temperature accuracyTuyeresChecking devicesReciprocating motionPeephole
According to the blast furnace tuyere monitoring device, a temperature measurement channel in an installation piece is communicated with a ventilation opening, a temperature detector in the temperature measurement channel can directly capture emergent light of the tuyere, and the obtained tuyere temperature value is accurate. A peephole which is communicated with the temperature measuring channel is formed in the mounting piece, an included angle is formed between the axis of the peephole and the axis of the temperature measuring channel, a sliding piece which can be inserted into or pulled out of the temperature measuring channel in a reciprocating motion mode is further arranged in the blast furnace tuyere monitoring device in a matched mode, and the sliding piece can be inserted into the temperature measuring channel under the condition that manual observation is needed; light at the outlet of the tuyere can be reflected to the peephole, and manual observation is completed. When manual observation is not needed, the sliding piece can be movably pulled out of the temperature measurement channel, temperature measurement is not affected, the accuracy of the measured temperature of the blast furnace tuyere is improved, the working condition of the blast furnace is accurately monitored, and the technical problem that the monitored working condition of the blast furnace at the blast furnace tuyere is not accurate enough is solved to a certain extent.
Owner:SHOUGANG JINGTANG IRON & STEEL CO LTD
Generator remaining life prediction method, system, electronic device and storage medium
The present invention relates to a method, system, electronic device, and storage medium for predicting the remaining life of a generator, comprising: obtaining historical data of a generator device; identifying the operating condition of the generator device at each moment using a preset operating condition identification method based on the historical data; preprocessing the operating condition at each moment to obtain a data sample set; training the data in the data sample set using an improved CNN module and an improved LSTM module to obtain a hybrid fault prediction model; the improved CNN module is an attention-based CNN module, and the improved LSTM module is an LSTM module with a peephole and an update gate; and predicting the remaining life of the generator based on the hybrid fault preset model. The present invention overcomes the problems of existing prediction methods, such as insensitivity to fault characteristics, multiple parameters, and slow training speed, by effectively extracting multi-parameter features. Furthermore, the multi-feature data can be used to accurately predict equipment faults, reducing long-term downtime costs, optimizing maintenance cycles, and improving early fault detection.
Owner:SUZHOU NUCLEAR POWER RES INST CO LTD +3
Furniture board surface treatment device for baking varnish processing
The utility model relates to the technical field of stoving varnish processing, and particularly discloses a furniture board surface treatment device for stoving varnish processing, which comprises an isolation mechanism, and a board surface polishing mechanism, a feeding mechanism and a dust falling mechanism are respectively arranged in the isolation mechanism; the feeding mechanism and the dust falling mechanism are arranged on the two sides of the plate surface grinding mechanism correspondingly. By means of the isolation room structure, the surrounding environment can be protected when surface treatment is carried out on a plate, a door plate structure of the isolation room can facilitate normal access of workers, the plate can be placed on a feeding table, and a peephole is matched with a glass plate, so that the situation that dust overflows can be avoided while internal plate machining and equipment operation can be observed, and the working efficiency is improved. And a power source of a second motor is switched on, the second motor can drive a threaded rod to rotate through a second rotating shaft, while the threaded rod rotates, a threaded sleeve moves, a limiting rod slides in a limiting hole, the threaded sleeve can drive a material pushing plate to horizontally move, and therefore the plate can be stably pushed.
Owner:四川韦德家智能家居有限公司
Door peephole viewer with dual camera modules and wireless connectivity
ActiveUS12647536B2Television system detailsSensing radiation from moving bodiesPeepholeDisplay device
Assemblies, sensors, methods of attachment, communication networks, and operational processes of a door-mounted camera apparatus with two integrated camera modules, for use with a door's peephole viewer. Some embodiments include a door bracket for attaching the camera apparatus to the door using removable adhesive or embedded magnets. Embodiments may include a movable mirror assembly which may be operated by a hand or by electrically powered mechanical actuator. Some embodiments include a peephole viewer apparatus with integrated sensors. Embodiments can include a digital display for viewing the camera's video output. Some embodiments can include a wired or wireless external sensor module which may detect whether a person is present in front of the door.
Owner:BAKKE ERIK
Detachable mirror cabinet
Owner:FOSHAN SHKL SANITARY WARE CO LTD
Nail beautifying magnetic bar
The utility model discloses a manicure magnetic bar which comprises a bar body, a first magnet, a second magnet, a third magnet and a fourth magnet, the first magnet is installed on the end portion of one end of the bar body, the first magnet is cylindrical, the second magnet and the third magnet are respectively installed on the front face of the other end of the bar body, and the fourth magnet is installed on the front face of the other end of the bar body. The two second magnets are respectively arranged to be arc-shaped, the two second magnets are inwards and symmetrically arranged, the third magnet is located between the two second magnets, the shape of the third magnet is arranged to be circular, the third magnet and the two second magnets are combined to form an eye structure, and the fourth magnet is installed on the back face of the other end of the rod body. The number of the fourth magnets is two, the fourth magnets are arranged to be in an arc shape, the two fourth magnets are symmetrically arranged outwards, and the two fourth magnets are combined to form an X-shaped structure. The portable peephole is simple in structure, reasonable in design, provided with various magnets of different types, capable of achieving various peephole effects, capable of being quickly shaped, easy and convenient to use, time-saving, labor-saving, small in size and convenient to carry.
Owner:DONGGUAN HEFENG MAGNET PROD CO LTD
Handle type fingerprint lock
The utility model relates to the field of fingerprint locks, in particular to a handle type fingerprint lock which comprises an intelligent lock body, a visual cat eye, a handle, a fingerprint unlocking touch area, an external charging port, a pressing plate, a large-capacity battery and a detachable fixing plate. The handle is installed in the middle of the front side of the intelligent lock body, the fingerprint unlocking touch area is arranged on the front side of the handle, the external charging port is formed in the lower right end of the front side of the intelligent lock body, and the problem that the intelligent lock cannot be unlocked when losing power can be solved by installing the external charging port; and the pressing plate is installed at the lower end of the front side of the intelligent lock body, the large-capacity battery is installed on the inner side of the intelligent lock body, the cruising ability of the intelligent lock can be guaranteed by installing the large-capacity battery, and the detachable fixing plate is installed on the rear side of the large-capacity battery.
Owner:SHENZHEN HAN GU TECH CO LTD
Anti-theft wooden door with alarm function
ActiveCN224200530UPrevent peeping indoorsimprove securityBurglar alarm by openingBurglary protectionPeepholeStructural engineering
The utility model discloses an anti-theft wooden door with an alarm function, which comprises a door frame, and a wooden door body is movably mounted in the door frame through hinges. A door lock is mounted on one side of the wooden door body; an observation hole is formed in the wooden door body; a cat eye is detachably mounted in the observation hole; an anti-peeping alarm device is arranged on one side of the cat eye in the observation hole; the anti-peeping cat eye effectively prevents lawbreakers from peeping indoor conditions through the cat eye, once someone tries to peep, the alarm immediately rings, the lawbreakers can be frightened, indoor people can be reminded in time, and the safety of families or places is improved; the wooden door body is of a multi-layer structural design, materials of all layers are matched with one another, the sound insulation performance, the heat preservation performance and the like of the door are enhanced, the overall strength and stability of the door are improved, the door is more durable, the service life of the door is prolonged, and the frequency and cost for replacing the door are reduced; the device is simple in structure, convenient to operate and worthy of popularization.
Owner:JINAN ZHISEN DOOR IND CO LTD
Vacuum furnace observation hole lens online replacement device and vacuum furnace
The invention relates to the technical field of vacuum furnace design, in particular to a vacuum furnace observation hole lens online replacement device and a vacuum furnace. The invention provides a vacuum furnace observation hole lens on-line replacing device which comprises a lens mounting part, a vacuum cutting-off part and a peephole connecting part, one side of the peephole connecting part is connected with a peephole of a vacuum furnace, and the other opposite side of the peephole connecting part is connected with the lens mounting part through the vacuum cutting-off part. The lens mounting part is provided with a first closed space, the peephole connecting part is provided with a second closed space, the second closed space is communicated with the interior of the vacuum furnace, and the vacuum cut-off part is used for isolating or communicating the first closed space and the second closed space. According to the technical scheme, the observation hole lens can be replaced in the vacuum smelting state, unnecessary shutdown is avoided, continuous production of the vacuum induction smelting furnace is guaranteed, and the production efficiency and the equipment utilization rate are remarkably improved.
Owner:BEIJING BEIYE FUNCTIONAL MATERIALS CORP +1
Vehicle viewing device
To achieve downsizing.SOLUTION: In a door mirror device, a first light guide 48 and a second light guide 50 are arranged in a vertical direction. Therefore, it is possible to reduce arrangement dimensions of the first light guide 48 and the second light guide 50 in a vehicle front-rear direction. In addition, a first LED and a second LED are respectively disposed at inner sides in a vehicle width direction of the first light guide 48 and the second light guide 50. Therefore, it is possible to shorten wiring distances to the first LED and the second LED from the inner sides in the vehicle width direction. Thus, the size of the door mirror device can be reduced.SELECTED DRAWING: Figure 5
Owner:KK TOKAI RIKA DENKI SEISAKUSHO
Mechanism for inhibiting carbon deposition of peephole of hydrogen-carbon-rich blast furnace tuyere
The utility model belongs to the technical field of tuyere peepholes, and particularly discloses a mechanism for inhibiting carbon deposition of a tuyere peephole of a hydrogen-carbon-rich blast furnace, which comprises a connecting pipe, a valve seat arranged on the connecting pipe, threads arranged at one end of the connecting pipe, a nut in threaded connection with the connecting pipe, and a lantern ring arranged on the inner side of the nut. A glass peeping sheet is placed between the connecting pipe and the lantern ring, a vertical pipe is communicated with the connecting pipe between the nut and the valve seat, a nitrogen pipe is communicated with the vertical pipe, and a valve is arranged on the nitrogen pipe. The problem that the labor intensity of a water watching worker is increased due to the fact that carbon powder blocks a tuyere peephole is solved. According to the utility model, generated carbon deposits are blown into the blast furnace through nitrogen purging, and the carbon deposits are prevented from blocking the peephole, so that the phenomenon that the peephole of the tuyere is frequently blocked by the carbon deposits of the peephole of the tuyere is avoided, and the labor intensity of the peephole of the tuyere is greatly reduced; meanwhile, gas leakage is reduced, so that the risk of gas poisoning caused by inspecting the hydraulic tuyere is reduced.
Owner:XINJIANG BAYI IRON & STEEL CO LTD