148results about How to "Avoid approaching" patented technology

The invention provides sodium-ion battery positive electrode slurry, a positive electrode plate, a preparation method of the positive electrode plate and a sodium-ion battery, and relates to the technical field of sodium-ion batteries, the sodium-ion battery positive electrode slurry comprises a positive electrode active material, a conductive agent, a binder, a composite dispersant and a solvent; the composite dispersing agent is a product formed by mechanically mixing an ionic dispersing agent and a polyoxyethylene ether nonionic dispersing agent or a compound formed by chemically reacting the ionic dispersing agent and the polyoxyethylene ether nonionic dispersing agent, and the ionic dispersing agent is polyacrylic acid and a derivative thereof; and the positive electrode active material is a polyanion material. According to the positive electrode slurry disclosed by the invention, the ionic dispersant of polyacrylic acid and a derivative thereof and the polyoxyethylene ether nonionic dispersant are compounded for use, so that the positive electrode slurry has good dispersity and stability, the provided positive electrode slurry is good in dispersity, the resistance of a positive electrode plate is low, and the cycle performance of the sodium ion battery is excellent.

The embodiment of the invention relates to the photovoltaic field, and provides a photovoltaic cell and a preparation method thereof, and a photovoltaic module, and the preparation method comprises the steps: providing a substrate comprising a first surface and a second surface; forming a hydrophobic layer covering the second surface; forming an aluminum oxide lamination layer on the first surface by adopting at least two atomic layer deposition process steps; the step of forming the aluminum oxide lamination comprises the following steps: placing a substrate covered with a hydrophobic layer in a reaction chamber, and introducing water vapor and trimethylaluminum into the reaction chamber in any circular deposition step, preset process parameters of any circulation deposition step in the (N + 1) th atomic layer deposition process are controlled to be lower than preset process parameters of any circulation deposition step in the Nth atomic layer deposition process, and the preset process parameters comprise at least one of water vapor flow, trimethylaluminum flow, water vapor introduction duration and trimethylaluminum introduction duration. The embodiment of the invention is at least beneficial to avoiding back surface winding plating and improving the film layer quality of the aluminum oxide laminated layer.

The invention relates to the technical field of cleaning equipment, and discloses driving shaft assembly bell housing cleaning equipment. The device comprises a barrel shell provided with a feeding port, a discharging port and an interlayer, and a transferring mechanism capable of transferring the bell-shaped shell and a cleaning mechanism capable of cleaning the bell-shaped shell are arranged in the barrel shell; the transferring mechanism comprises a shaft barrel which is arranged in the barrel shell, can rotate and can discharge waste water, and a plurality of cleaning barrels used for containing the bell-shaped shells are rotationally installed on the shaft barrel. The cleaning mechanism comprises a rotatable water injection pipe, and one end of the water injection pipe extends out of the barrel shell and is rotationally connected with the barrel shell. According to the device, nickel sand can be matched with cleaning water to clean the bell housing, so that stains easy to clean can be removed, stubborn attachments on the surface of the bell housing can be removed in a polishing mode, and compared with a traditional washing and overturning polishing cleaning mode, the device is more comprehensive.

The invention discloses an evaporation test pool for monitoring water surface evaporation data, and belongs to the field of meteorological detection.The evaporation test pool comprises an evaporation mechanism and a floating mechanism, the evaporation mechanism is located on the lower portion of the inner side of the floating mechanism, the evaporation mechanism comprises a pool body, a plurality of partition plates are fixed in the pool body, the partition plates are fixedly connected, and the floating mechanism is arranged in the pool body. Through the connection of the screw rod and the screw cylinder, the distance and height difference between the pool body and the floating mechanism can be adjusted, so that the depth of the pool body in water is controlled. When the electromagnetic valve is opened to enable the tank body to be communicated with water, the water level in the tank body can be accurately controlled; through a series of mechanical transmission structures such as a wave plate, a connecting rod, a toothed plate, a ratchet wheel and a pawl, when the water surface fluctuates, the test pool can automatically sense and convert wave energy into mechanical energy, the floating mechanism is driven to expand or contract, the contact area with the water surface is increased, the wind wave resistance is improved, and meanwhile the stability of the equipment is guaranteed.

The utility model discloses a vertical motor test tool platform, which belongs to the technical field of test platforms and comprises an upper platform plate, a plurality of supporting plates are arranged at the bottom of the upper platform plate, a lower platform plate is arranged on one side of each supporting plate, a storage mechanism is arranged at the top of each lower platform plate, and a through hole is formed in the surface of each upper platform plate. A clamping mechanism is arranged in the through hole, and a first connecting mechanism is arranged at the top of the upper platform plate. The first electric telescopic rods in the through holes drive the arc-shaped plates to clamp the shaft extension sizes of the vertical motors of different sizes, so that the platform can be suitable for the vertical motors of different sizes, and then the clamping blocks are installed on the surface of the upper platform and the surface of the baffle through the bolts. And then an electric telescopic rod II in a clamping block drives a clamping plate to clamp the vertical motors with different sizes, so that the vertical motors can be tested more stably on the platform.

The invention belongs to the technical field of ceramic production assistants, and particularly relates to a building ceramic slurry dispersion-enhanced admixture as well as a preparation method and application thereof. The invention discloses a ceramic slurry dispersion-enhancement type additive. The ceramic additive is prepared from the following raw materials: a modified silicate material, a carboxylic acid grafted ester amine copolymer, modified polymethacrylate and a charge shielding agent. When the ceramic slurry dispersion-enhanced admixture is applied to ball-milling dispersion and sintering links in ceramic production, the dispersion performance of ceramic slurry can be further improved, the water demand in the ball-milling process and the energy consumption in the subsequent sintering process can be reduced, the strength of green bodies can be improved, the subsequent processing stability is facilitated, the rejection rate is reduced, and the production cost is reduced. The ceramic production efficiency is improved.

The invention belongs to the technical field of carbon black reaction furnaces, and discloses a carbon black reaction furnace capable of improving quality and efficiency, which comprises a base, a reaction furnace body is fixedly mounted at the top of the base, the reaction furnace body comprises a plurality of groups of throat pipe sections and combustion chambers, and the throat pipe sections and the combustion chambers are connected through flanges. One end of the combustion chamber is fixedly connected with an air supplementing pipe, an additive supplementing pipe and a fuel gas supplementing pipe, and one end of each throat pipe section is fixedly connected with a discharging pipe. When the combustion speed is larger than the oil injection speed, combustion flames start to move upwards and get close to the oil injection pipe and the heat conduction rod, at the moment, the temperature of the heat conduction rod is increased abnormally, thermal expansion liquid in a containing groove is heated, the volume of the thermal expansion liquid is expanded, a piston, a connecting block and a sealing sleeve are pushed upwards, and therefore the area, covering a through groove, of the sealing sleeve is reduced; the effective oil passing area of the through groove is increased, the oil spraying speed of the device is increased, and therefore the tempering phenomenon is avoided.

The utility model discloses a gas cylinder anti-toppling frame in the technical field of gas cylinder anti-toppling frames, which comprises a supporting bottom plate, vertical rods are mounted at four corners of the top of the supporting bottom plate, moving components are mounted at the bottom ends of two groups of vertical rods positioned at the rear end, and an arc-shaped supporting vertical plate is fixedly mounted at the top of the supporting bottom plate. Clamping assemblies are rotationally connected to the two sides of the arc-shaped supporting vertical plate, multiple sets of supporting plates are welded between the two sets of vertical rods located on the same side, a switch assembly for controlling the two sets of clamping assemblies to rotate is installed between the supporting plates on the two sides, and each clamping assembly comprises multiple sets of clamping plates rotationally connected with the side face of the supporting vertical plate; the gas cylinder fixing support solves the problems that an existing gas cylinder is not provided with a special fixing support in the using process, the gas cylinder is prone to being pulled down or knocked down, the gas cylinder is inconvenient to carry and transfer according to using of workers, and people cannot use the gas cylinder conveniently.

The utility model discloses a medicine applying device, which belongs to the technical field of medical medicine applying and comprises a sleeve, an anti-skidding sleeve is wrapped on the surface of the sleeve, a sliding tube is mounted in the sleeve in a sliding manner, a cross-shaped sliding rod is mounted in the sliding tube in a sliding manner, and a C-shaped clamping block is arranged on the surface of one end, positioned on the outer side of the sliding tube, of the cross-shaped sliding rod. According to the medicine applying device, by arranging an end plate, a pressing plate, a C-shaped clamping block, a pressing spring and a pressing plate, the pressing plate is pulled to be away from the C-shaped clamping block, the C-shaped clamping block is arranged on the surface, located between the end plate and the pressing plate, of a cross-shaped sliding rod in a sleeving mode, after a fixing clamping column corresponds to a fixing inserting hole, the pressing plate is loosened, and the pressing plate is pressed on one side of the pressing plate under the rebound effect of the pressing spring; the fixing clamping columns are inserted into the corresponding fixing inserting holes, so that the C-shaped clamping blocks are fixed between the end plate and the pressing plate, the pressing plate is prevented from getting close to the end plate under the action of external force, and the cross-shaped sliding rod pushes the piston head to eject medicine out of the medicine outlet hole.

The utility model relates to incinerator cleaning technical field especially, relates to a kind of ash removal device of incinerator with protective structure, including spray pipe;Further including adjusting assembly, the outer end of spray pipe is provided with adjusting assembly, adjusting assembly includes limit tube, movable slot, movable block, toothed plate, motor, gear, handle, bottom support and controller, the outer end of limit tube is connected with limit tube, movable slot is opened in the outer end of limit tube, movable block is slidably connected in the outer end of movable slot, the bottom of movable slot is connected with toothed plate, the left end of movable block is connected with motor;The utility model is started motor by setting adjusting assembly, motor drives gear rotation, gear moves on toothed plate, and further handle is adjusted to the front side of spray pipe, then spray pipe is aligned incinerator, again by controller motor drives gear reverses, and further spray pipe is inserted into incinerator, avoid staff approaching incinerator, improve security.

The utility model relates to the technical field of dryers, in particular to a heat exchange device for a dryer, which comprises a dryer body and a heater, one end of the dryer body is sequentially provided with a feeding port and a waste gas port, and the other end of the dryer body is sequentially provided with an air blower and the heater. A discharging opening and a driving assembly are sequentially mounted on the lower side of the drying machine main body; the drying machine has the beneficial effects that the connecting motor is started, so that the splitter plate can split hot air while rotating, high-temperature hot air can be uniformly fed into different parts in the drying machine main body, an over-high or over-low-temperature area is avoided, and therefore it is ensured that materials are uniformly heated in the drying process, and the drying efficiency is improved. The filter plate and the air inlet of the air blower are limited together by using the connecting bolt and the nut, so that the connecting pad and the placement groove form a sealing state, the filter plate can prevent dust and waste wadding from entering the air blower, and a heater of the dryer is not easily influenced by the dust and waste wadding.

The utility model relates to the technical field of power construction, and discloses a power construction operation platform which comprises a moving trolley, a scissor type lifting frame is arranged on the upper surface of the moving trolley, a supporting platform is arranged on the upper surface of the scissor type lifting frame, a guardrail is fixedly connected to the upper surface of the supporting platform, and a protection supporting assembly is installed on the outer side of the guardrail. The protective supporting assembly comprises a connecting plate, one side of the outer wall of the connecting plate is fixedly connected to one side of the outer wall of the guardrail, a hinge seat is fixedly connected to the upper surface of the connecting plate, a hinge block is rotatably connected to the interior of the hinge seat, a supporting plate is fixedly connected to the upper surface of the hinge block, and a supporting net is fixedly connected to the interior of the supporting plate. The height of the supporting platform is adjusted through the scissor type lifting frame, the hydraulic rod drives the sliding block to enable the supporting plate to rotate and unfold, the supporting area is enlarged, and construction of operators is facilitated; tools can be placed above the supporting net, and the storage box in the storage box facilitates storage of maintenance tools, so that the practicability of the platform is improved.

The utility model discloses an indoor heating radiator with a protective structure, which comprises a radiator shell made of aluminum alloy materials, the radiator shell is fixedly arranged on the ground through mounting pieces fixedly arranged on the left side and the right side of the radiator shell, and radiating fins distributed at equal intervals are fixedly arranged outside the radiator shell. A water inlet pipe and a water outlet pipe are fixedly installed on the left side of the radiator shell, a heat exchange pipeline of a bent structure is fixedly installed in the radiator shell, and the two ends of the heat exchange pipeline and the water inlet pipe and the water outlet pipe form communicating structures correspondingly. The front side of the radiator shell is provided with a protection mechanism used for protecting people from getting close to and making contact with the protection mechanism. According to the indoor heating radiator with the protective structure, the novel structural design is adopted, the protective mechanism is arranged, the protective cover is arranged outside the radiator in the using process of the radiator, the radiator is protected through the protective cover, children and old people are prevented from getting close to the radiator body easily, and therefore the situation that the children and old people are scalded is avoided.

The utility model discloses a tin soldering device for high-frequency transformer processing, and relates to the technical field of high-frequency transformer processing. The device comprises a working table, the bottom of the working table is fixedly connected with a supporting soft cushion, and the device is characterized in that the left side and the right side of the working table are each provided with a first supporting plate, the tops of the two first supporting plates are each fixedly connected with a supporting rod, the inner walls of the supporting rods are provided with second threaded rods, and the tops of the supporting rods are provided with first movable blocks; the first movable block is arranged, specifically, the measuring cylinder electric push rod is arranged at the top of the first movable block, the measuring cylinder is filled with soldering paste, the soldering paste is conveyed to the soldering paste spraying head through the output pipe, and the electric push rod drives the extension cylinder to be matched with the extension rod; and meanwhile, the welding position is transversely adjusted by adjusting a measuring cylinder at the bottom of the first movable block for welding operation, personnel are prevented from approaching, personnel safety is ensured through automatic operation, and meanwhile the welding efficiency is improved.

A retard-bonded prestressed steel bar comprises two fixing plates, two tensioning plates and a plurality of prestressed steel bars, the two fixing plates are arranged at the two ends of the prestressed steel bar respectively, and the two tensioning plates are arranged at the two ends of the prestressed steel bar respectively; a plurality of through holes are formed in each fixing plate and each tensioning plate, the end part of each prestressed steel bar is of a stud structure, and the stud structures respectively penetrate into the through holes of the fixing plates and the through holes of the tensioning plates; in conclusion, the prestressed steel bars are arranged between the fixing plates, force can be applied to all the prestressed steel bars at the same time by applying force to the tensioning plates, balance of tension is guaranteed, in addition, the prestressed steel bars can be effectively protected through the protective sleeves, the slow-bonding layers on the outer sides are prevented from being damaged, the use effect is good, and the service life of the prestressed steel bars is prolonged. By arranging the springs, concrete stones can be prevented from entering or approaching the prestressed steel bar to damage the protective layer, and large friction caused by direct contact is also avoided; the overall structural design is reasonable, the curing effect is good, toughness is high, and use is safe.

The utility model discloses a Mark point structure, which adopts at least two rectangular parts which are arranged in a crossed manner to form a bonding pad area, and compared with a traditional circular structure, the composite geometric shape of the bonding pad area can provide higher feature vector dimension in a machine vision system, the HOG feature value is improved by at least 30%, the algorithm identification accuracy is greatly improved, and the reliability of the structure is improved. Especially in a high-density BGA packaging area, the positioning precision of the center coordinates of the cross points can reach + / -0.01 mm, the identification degree of the Mark points on the PCB is greatly improved, and the problem that the Mark points are difficult to distinguish due to the low identification degree is effectively solved.

The utility model discloses a metal part of a stamping fire grate, which belongs to the technical field of metal stamping parts and comprises a palm-sealing shell, a cover cap is fixedly sleeved at one end of the palm-sealing shell, isolation pieces are arranged on two sides of the outside of the cover cap, and an isolation frame is arranged on one side of each isolation piece. The shield cover is arranged at the gas end of the fire grate, the isolation frames are fixedly installed on the two sides of the outer portion of the shield cover in a welded mode, a heat insulation plate is arranged on one side of the outer portion of each isolation frame, the heat insulation plates are made of aluminum alloy materials, and an outer protection plate is fixedly installed on the outer portion of each heat insulation plate. The shield cover is arranged at the gas end of the fire grate, and the good isolation effect on the periphery of the fire grate is achieved through the shield cover; according to the invention, by arranging the isolation pieces on the two sides of the exterior of the cover cap and isolating the two sides of the cover cap through the isolation frame, the situation that the external components are too close to each other and are burnt and damaged is avoided, and the heat insulation plate plays a heat insulation role on the isolation frame, so that the situation that heat is diffused to the two sides and the adjacent components are burnt and damaged is avoided.

The utility model relates to the field of equipment protection fences, and discloses a foldable equipment protection fence which comprises an equipment machine, a connecting mechanism and a fixing mechanism are arranged on the outer wall of the equipment machine, the connecting mechanism comprises a side frame, the outer wall of the side frame is fixedly connected with a first connecting rod, the outer wall of the side frame is in contact with a connecting frame, and the connecting frame is fixedly connected with a second connecting rod. A second connecting rod is fixedly connected to the outer wall of the connecting frame, a connecting block is fixedly connected to the side, close to the connecting frame, of the side frame, a clamping groove is formed in the inner wall of the connecting block, and a connecting groove is formed in the side, close to the side frame, of the connecting frame. According to the utility model, through the arrangement of the connecting mechanism, modularized connection and fixation can be rapidly realized, the complexity and the time cost in the installation process are reduced through the modularized connection mode, the overall installation efficiency is improved, an effective protection barrier is formed for the equipment machine, personnel are prevented from approaching the equipment machine, and the safety of the equipment machine is improved. And the safety of personnel and the normal operation of equipment are ensured.

The utility model discloses a laser marking and pushing device provided with a limiting and guiding mechanism, and the device comprises an installation frame which is of a U-shaped steel frame structure, and the installation frame is a feeding mechanism of a laser marking machine; the feeding belt is mounted in the mounting frame, and the feeding belt is a feeding column body of the laser marking machine; and adjusting rods are symmetrically arranged at the upper end of the mounting frame. According to the laser marking pushing device provided with the limiting guide mechanism, the feeding belt is located in the mounting frame, and in the process that the feeding belt is driven by electric power to move towards a working port of a laser marking machine along with materials, the feeding belt is limited by a push rod and a guide plate which are connected and slide through a spring in two limiting plates; and meanwhile, a telescopic rod arranged on one side of the guide plate is matched with materials of different heights for gathering and limiting under adjustment of a bolt, adjustment and limiting of the position of the workpiece are kept in the conveying process of the material workpiece along with the feeding belt, and therefore precise positioning of the workpiece is achieved in the laser marking process.

The utility model belongs to the technical field of biological safety cabinets, and particularly relates to a laboratory biological safety cabinet which comprises a base, a safety cabinet body is vertically connected right above the base in a sliding mode, two symmetrically-arranged storage grooves are formed in the surface of the base, and protection mechanisms are arranged in the storage grooves. The front position of the safety cabinet body is blocked by arranging the protection mechanism, the placement frame and the warning tape, personnel are prevented from mistakenly entering the area of the safety cabinet body, the personnel are prevented from approaching and driving air to flow, the probability of cross contamination between the personnel and samples or between the samples is further reduced, and the working efficiency is improved. The safety cabinet has the advantages that the safety cabinet is simple in structure and convenient to use, the accuracy of the safety cabinet body in the test process is improved, the safety and stability of the safety cabinet body in use and the accuracy in the subsequent test process are guaranteed, the occupied area can be reduced when the safety cabinet body is not used, the safety cabinet body can be quickly unfolded when needed, meanwhile, the placement frame can be stably stored, and the equipment convenience is improved.

The utility model provides a butt joint assembly, a butt joint device and cable maintenance equipment, the butt joint assembly can be at least used for butt joint and separation of an inspection robot and a high-altitude cable, and the butt joint assembly comprises a frame which is provided with a containing space for containing the inspection robot and a side opening allowing the high-altitude cable to enter the containing space; the butt-joint frame is arranged on the frame-shaped frame and used for guiding the aerial cable to enter the containing space from the side opening and positioning the aerial cable at the butt-joint position of the aerial cable and the inspection robot; and the connecting frame is connected to the frame-shaped frame, located above the frame-shaped frame and used for being connected with an aircraft. According to the butt joint assembly of the structure, lateral butt joint with a high-altitude cable is achieved through translation, when an inspection robot is put into the two lower wire harnesses in the three wire harnesses distributed in the shape like the Chinese character'pin ', the unmanned aerial vehicle can be prevented from being too close to the upper wire harnesses, the unmanned aerial vehicle cannot be broken down by an electromagnetic field of the upper wire harnesses any more, and the inspection robot can be put into the inspection robot. And the working safety of the unmanned aerial vehicle and the inspection robot is remarkably improved.

The invention relates to the technical field of high-temperature furnace hauling, in particular to a high-temperature furnace heavy type automatic hauling device which comprises a hauling seat, a plurality of lifting mechanisms fixedly connected to the hauling seat, a high-temperature furnace arranged on one side of the hauling seat, a protective fence fixedly connected to the hauling seat and a fixing frame fixedly connected to the hauling seat. The anti-splashing cover is arranged on the rotating frame in a sliding fit mode, the transmission mechanism is rotationally connected to the rotating frame, the rotating frame can drive the anti-splashing cover to cover the furnace opening of the high-temperature furnace, slag splashing is effectively prevented, the risk of accidents is reduced, external objects are prevented from entering the high-temperature furnace, and the service life of the high-temperature furnace is prolonged. The splash-proof cover is arranged on the furnace body, safety of materials and equipment in the furnace is protected, slag is prevented from being splashed out easily in the hauling process, or other objects fall into high-temperature liquid slag in the hauling process, meanwhile, the exhaust holes are formed in the splash-proof cover, gas accumulation or overhigh pressure in the furnace is avoided, gas in the furnace can be effectively released, and the service life of the furnace is prolonged. And the safety problem caused by gas expansion is avoided.

The invention relates to the technical field of resin production, in particular to an anti-sticking filtering device for alkyd resin production and production equipment. A rotatable filtering net cylinder is arranged in a heat preservation tank, a filtering cavity is formed between the filtering net cylinder and an outer cylinder, a resin extrusion assembly is installed in the filtering cavity, and after resin is put in, an extrusion plate can apply pressure to the resin, so that the resin is extruded out of the filtering cavity; after the resin is filtered for a period of time, the filter screen cylinder is driven to rotate at a high speed, and at the moment, impurities attached to the outer wall of the filter screen cylinder are separated under the action of centrifugal force and are thrown to the inner wall of the outer cylinder; meanwhile, the extrusion plate pushes impurities and residual resin attached to the inner wall of the outer cylinder to a rotating ring at the bottom of the filter screen cylinder, and finally the impurities and the residual resin are discharged outwards through a centrifugal gate arranged on the rotating ring, so that the problem that the filter efficiency of the filter screen cylinder is reduced due to impurity attachment is solved.

The utility model belongs to the technical field of lighting, and particularly relates to an outdoor device floor lamp with soft light rays, which comprises a base, an annular lamp holder is fixedly connected to the upper surface of the base, a fixing rod is fixedly connected to the middle of the top end of the annular lamp holder, and a cylindrical lampshade is fixedly connected to the lower surface of the fixing rod. A bulb is movably connected to the inner wall of the top end of the cylindrical lampshade, and a plurality of adsorption rods are fixedly connected to the inner wall of the top end of the cylindrical lampshade. The collecting box can be driven to move through the lifting motion of the micro hydraulic rod, so that insects and sundries in the cylindrical lampshade are cleaned, meanwhile, the insect-proof power grid can be knocked by the L-shaped knocking rod, the insects are knocked down into the collecting box, the insect-proof power grid can be connected with the fixed shell and is convenient to disassemble and clean, and the collecting box is provided with an opening and a rubber plug, so that the insect-proof power grid is convenient to disassemble and clean. And the size of the lampshade is matched with that of the cylindrical lampshade, so that rainwater is prevented from entering.

The ecological floating ball natural ventilation device comprises an air supply cylinder and a fixing plate, mounting grooves are symmetrically formed in the upper end of the inner side face of the air supply cylinder, one-way valves are fixedly connected into the mounting grooves, and the bottom of the inner side of the air supply cylinder is symmetrically connected with one ends of air guide pipes; and meanwhile, the upper end of the outer side face of the air supply cylinder is fixedly connected with a fixing plate, confluence grooves are correspondingly formed in the positions, opposite to the one-way valves, of the inner side face of the fixing plate, penetrating grooves are symmetrically formed in the surface of the fixing plate, and meanwhile the two ends of the penetrating grooves communicate with the corresponding confluence grooves through flow guide grooves. According to the natural ventilation device, airflow can stably flow through the one-way valve through cooperation of the fixing plate, the penetrating groove, the flow guide groove and the confluence groove, external liquid is prevented from synchronously flowing into the air supply cylinder along with the airflow, the one-way valve can be prevented from being blocked by external sundries, and the stability of the natural ventilation device in use is improved.

The utility model discloses a cutting device for poultry processing, which comprises a fixed base, a rotary processing table and a mounting rack, a fixed table is fixedly mounted in the center of the top surface of the fixed base, a rotary sliding groove is formed in the fixed base, a rotary sliding ring is fixedly mounted on the bottom surface of the rotary processing table, and a rotary sliding groove is formed in the rotary sliding ring. A mounting frame is fixedly mounted on the top surface of the fixed table, an electric push rod is mounted on the mounting frame, the output end of the electric push rod is connected with a protective shell, a cutting shaft is mounted in the protective shell, and a cutting blade is fixedly mounted on the cutting shaft; one end of the cutting shaft is connected with the output end of a cutting motor. The poultry cutting machine has the beneficial effects that the poultry cutting machine is provided with the rotary processing table, the driving motor and the mounting frame, so that a user can conveniently and continuously cut and process a plurality of poultry to be processed, workers do not need to get close to a cutting blade in the processing process, and the poultry cutting machine is higher in use safety and higher in practicability.

The utility model relates to a medical CT (computed tomography) examination shelter, belongs to the technical field of shelters, and solves the problems of inconvenience in use and difficulty in power supply of the medical shelter in the prior art. The CT examination shelter is integrally divided into three parts, namely a front cabin, a main cabin and an auxiliary cabin, the front cabin is an open equipment room; a CT machine is installed in the main cabin, and the auxiliary cabin is installed in the main cabin in a nested mode and serves as an expansion type medical care operation room. In the unfolded state, a middle partition plate is arranged between the main cabin and the auxiliary cabin, and an energy storage system and a CT console are arranged in the auxiliary cabin; the energy storage system comprises two groups of battery clusters which are arranged in parallel, and the two groups of battery clusters realize switching between a power supply state and a charging state through a static dual-power switch. According to the medical CT examination shelter, rapid unfolding and use can be achieved, and meanwhile the power utilization requirement of the CT shelter is met on the premise that the space is limited by setting the power supply mode of switching of the double battery clusters.

The utility model discloses a household photovoltaic installation support which comprises a base and a photovoltaic panel installation structure arranged on the base, the photovoltaic panel installation structure comprises an installation block used for installing a photovoltaic panel, a cleaning mechanism and a reflective bird repelling mechanism, and the cleaning mechanism comprises a guide rail installed on the installation block, a servo motor, a threaded rod and a scraper blade. The servo motor drives the threaded rod to rotate, the threaded rod is in threaded connection with the scraping plate, and the scraping plate is matched with the guide rail, so that when the threaded rod rotates, the scraping plate is driven to linearly move along the guide rail and clean the surface of the photovoltaic panel, the light-reflecting bird repelling mechanism comprises a rotating block and a light reflecting plate connected with the rotating block, and a transmission assembly is arranged between the rotating block and the threaded rod; therefore, when the threaded rod rotates, the rotating block is driven to rotate, and the reflecting plate is driven to rotate to reflect light and repel birds. According to the utility model, the purpose that the mounting bracket for household photovoltaic use is convenient to clean a photovoltaic panel can be achieved by virtue of the cooperation of the cleaning mechanism and the reflective bird repelling mechanism.

The utility model discloses a sealing machine, which belongs to the technical field of sealing devices, solves the problem of water inflow risk of a negative pressure switch in the existing sealing machine, and adopts the technical scheme that the sealing machine mainly comprises a body, the body is provided with a sealing part and a cavity with an opening, and the sealing part seals the cavity to enable the cavity to form a sealing cavity. A negative pressure switch and a vacuum pump are arranged in the body, the cavity is provided with a first channel and a second channel, the negative pressure switch is communicated with the cavity through the first channel, the vacuum pump is communicated with the cavity through the second channel, the first channel is provided with a detection port located in the cavity, and the second channel is provided with an extraction opening located in the cavity. The distance between the detection opening and the bottom wall of the cavity is larger than the distance between the extraction opening and the bottom wall of the cavity. The negative pressure switch is mainly used for reducing the possibility that water enters the negative pressure switch.

The utility model provides a platform safety rope lifting mechanism which comprises a lifting column internally provided with a power device and a lifting device. The lifting device comprises a lifting part, a first rope moving part, a second rope moving part and a third rope moving part, three vertical sliding rails are arranged in the lifting column side by side, the three rope moving parts slide on the three sliding rails correspondingly, and limiting seats with the position heights changing step by step in sequence are arranged on the three sliding rails correspondingly. The first rope moving part can move to the lowest position, and the lifting part is fixed to the power device and the first rope moving part and can lift the three rope moving parts. The rope moving part comprises a displacement part and a rope connecting part, and the rope connecting part of the first rope moving part and the rope connecting part of the third rope moving part deviate from the second rope moving part and are located on the outer side of the rope connecting part of the second rope moving part. The mechanism can safely guard passengers through lifting of the ropes, the three rope moving parts are compact in structure, and production, transportation and installation of the mechanism are facilitated.