589results about How to "Avoid flow" patented technology

The invention belongs to the technical field of cables, and particularly relates to a high-voltage cable for a new energy vehicle, which comprises a conductor and an insulating layer, the insulating layer material is prepared from the following raw materials in parts by mass: 40 to 50 parts of polyethylene, 5 to 10 parts of beta-caryophyllene-maleic anhydride-polyethylene copolymer, 10 to 15 parts of ethylene-octene copolymer, 1 to 4 parts of composite cross-linking agent, 2 to 3 parts of cellulose nanofiber, 1 to 2 parts of kaurene, 5 to 10 parts of flame retardant, 0.5 to 1 part of flexibilizer and 0.5 to 1 part of lubricant. The prepared cable has excellent thermal stability, mechanical strength and insulating property, the service life of the cable is effectively prolonged, and the use stability of the cable is effectively improved.

The invention relates to the technical field of road and bridge pavement detection, in particular to a road and bridge asphalt pavement detection device. Comprising a paver and further comprises a viscosity detection mechanism, the viscosity detection mechanism comprises an installation frame, the paver is fixedly connected with the installation frame, an electric push rod is installed at the bottom of the installation frame, the telescopic end of the electric push rod is fixedly connected with a [-shaped frame, the bottom of the [-shaped frame is fixedly connected with an elastic telescopic shaft, and the telescopic end of the elastic telescopic shaft is fixedly connected with a detection plate. And the detection plate is in sliding connection with the n-shaped frame. Through the design of the viscosity detection mechanism, when asphalt is laid, a detection plate is inserted into an asphalt mixture, the asphalt mixture can be adhered to the detection plate according to the viscosity characteristics of new asphalt and recycled asphalt, and the viscosity of the asphalt mixture can be detected by observing the scales on the top surface of the detection plate and in the [-shaped frame. According to the method, the blending proportion of the asphalt mixture can be judged, so that performance reduction of the asphalt mixture caused by excessive new asphalt or recycled asphalt in the asphalt mixture is prevented.

The invention relates to the technical field of intelligent household appliances, and discloses a method for linkage control of kitchen equipment, the kitchen equipment comprises a range hood and a kitchen air conditioner, and the kitchen air conditioner comprises a fresh air module; the method comprises the steps that under the condition that the range hood is in a running state, the gas displacement of the range hood is obtained; and the air inlet amount of the fresh air module is controlled to be smaller than or equal to the exhaust amount of the range hood, so that air in the kitchen is in a static pressure state or a negative pressure state. The air inlet amount of the fresh air module is controlled to be smaller than or equal to the exhaust amount of the range hood, so that air in the kitchen area can be in a static pressure state or a negative pressure state. And air in the kitchen area is prevented from flowing outwards. And the amount of oil smoke flowing into the living quarter when the fresh air module is started is reduced. The invention further discloses a device for linkage control of the kitchen equipment and the kitchen equipment.

The invention discloses an automatic tool changing device for intelligent robot manufacturing, and relates to the technical field of intelligent manufacturing, the automatic tool changing device comprises a rack, the top of the rack is fixedly connected with a guide rail, the output end of the guide rail is fixedly connected with a lifter, and the bottom of the inner side face of the rack is fixedly connected with a storage table and a supporting frame; the device further comprises a fastening rotating mechanism, and the fastening rotating mechanism is fixedly installed at the output end of the lifter. According to the automatic tool changing device for intelligent robot manufacturing, when a tool needs to be used, an electric rotary table drives a first electromagnet to rotate, a rotating assembly is driven by magnetic force to rotate, and a connecting assembly rotatably supports the rotating assembly; and rotation and rotation stopping of the rotating assembly are adjusted by controlling a switch of the first electromagnet, so that the main shafts are in a constant rotating state, and the problem that the cutter is prone to collision when being used due to recycling of two main shafts is solved.

The invention relates to the technical field of packaging equipment, and particularly discloses potassium monopersulfate compound filling equipment and method.The potassium monopersulfate compound filling equipment comprises a rack, a limiting ring, an unwinding mechanism, an edge sealing mechanism, a sealing mechanism and a discharging pipe; the folding mechanism comprises a lifting assembly, a horizontal moving assembly installed at the lifting end of the lifting assembly, a rotating rod installed at the moving end of the horizontal moving assembly and a driving assembly used for driving the rotating rod to rotate, and two thin rods are installed at one end of the rotating rod. The conveying mechanism comprises a first conveying belt and two second conveying belts which are arranged on the lower side of the edge sealing mechanism and attached to each other, and the first conveying belt and the second conveying belts have an overlapping area in the height direction. The two slender rods drive the plastic film to be folded to form an overlapped area, the horizontal moving device drives the rotating rod to rotate the center line of the plastic film, and the slender rods drive the edge of the plastic film to be folded; the sealing device has the beneficial effect that the sealing effect of the sealing opening of the packaging bag can be improved.

The invention provides a refrigerator which comprises a refrigerator body, a storage chamber formed in the refrigerator body, a storage chamber door used for opening and closing the storage chamber, a distributor chamber arranged on the storage chamber door, an ice making chamber arranged on the storage chamber door and an ice making door used for opening and closing an opening of the ice making chamber, the refrigerator further comprises an auxiliary door arranged on the outer side of the storage chamber door, heat preservation materials are arranged in the auxiliary door, the auxiliary door is used for opening and closing the opening of the distributor chamber, heat preservation materials are arranged in the auxiliary door, the auxiliary door is arranged on the outer side of the ice making chamber, when the auxiliary door is in a closed state, the auxiliary door shields the ice making chamber, and the refrigerator supplies cold to the distribution chamber. When the auxiliary door is in the closed state, the sealing strip at least seals the gap between the front side of the ice-making chamber and the auxiliary door, and cold air in the distributor chamber is prevented from flowing to the position between the front wall of the ice-making chamber and the auxiliary door. Therefore, condensation on the surface of the ice-making chamber can be avoided.

The invention relates to the technical field of welding devices, in particular to a mechanical equipment research and development welding device which comprises a welding mechanism, the welding mechanism comprises a supporting component, two clamping components, a rotating component, a collecting component, two scraping components and two intercepting components, and the two clamping components are located on the left side and the right side of the top of the supporting component correspondingly; after a hardware product is clamped and fixed through the clamping component, cooling liquid is used for cooling and welding slag is generated in the welding process, the cooling liquid and the welding slag flowing to the bottom are collected by the collecting component, and the air blowing component can blow air to the surface of the hardware product, so that the cooling liquid and the welding slag are blown away and prevented from remaining in a welding seam or a welding joint; and the cooling liquid and the welding slag blown to the front side can be collected by the waste material box, the clamping component can drive the hardware product to turn over through the rotating component, manual turning over can be not needed, and the filter screen can be automatically cleaned through the scraping component.

The double-channel electromagnetic control valve comprises an electromagnet and a controller arranged on one side of the electromagnet, the controller at least comprises a barrel extending in the axial direction of the electromagnet, a hole A and a hole B are formed in the outer circumferential face of the barrel in a front-back split mode, a hole P is formed in the free end side of the barrel, and a hole B is formed in the outer circumferential face of the barrel. A steel ball capable of selectively sealing the P hole is arranged in an inner cavity of the free end of the cylinder body; a containing cavity is formed in the cylinder body, a push rod driven by the electromagnet is arranged in the containing cavity, the diameter of the end side of the push rod is smaller than that of the hole P, and at least part of the push rod can extend out of the hole P; the push rod is sleeved with a sealing plug capable of selectively separating a communication channel between the hole A and the hole B. The device has the advantages that under the condition that the coil is not powered on or powered off, the steel ball is completely attached to the P hole all the time under the action of hydraulic oil, the situation that the hydraulic oil leaks can be avoided, and safety is improved.

The present invention relates to the technical field of advertising design display, and in particular to an audio-visual combined advertising design display device, comprising: a protective device, the protective device is used to support the overall structure of the device; a curtain wall, the curtain wall is fixedly installed on the outer side of the protective device, a projector is fixedly connected to the inner side of the curtain wall, speakers are fixedly connected to the two sides of the curtain wall, and the curtain wall is used to project images displayed by the projector; a cleaning device, the cleaning device is slidably connected to the outer side of the protective device. The present invention arranges the protective device and the cleaning device to cooperate with each other. In the process of pulling the cleaning device downward, the sliding plate slides downward along the inner wall of the protective frame and forces the spiral rod to rotate. At this time, the fan blades at the bottom of the spiral rod rotate and blow the air in the base into the diversion jet pipe through the air guide pipe. Finally, the air is blown out from the diversion jet pipe to blow off the dust attached to the inner wall of the curtain wall, thereby cleaning the curtain wall while cleaning the light-transmitting plate.

The embodiment of the invention provides a display module, a manufacturing method thereof and a display device, relates to the technical field of display, and is used for effectively preventing glue from flowing to a display area. The display module comprises a display panel, the display panel comprises a display area and a first non-display area located on the periphery of the display area and further comprises a substrate and a first film layer located on one side of the substrate, the first film layer comprises an auxiliary sub-part, the auxiliary sub-part is located in the first non-display area, and the auxiliary sub-part comprises a groove or a protrusion.

The utility model belongs to the technical field of urban drainage, and particularly relates to a rainwater drainage device for draining water by means of self weight. Comprising an outer pipe, a closed steel plate, a hemispherical filter cover and a floating cover, the outer pipe is divided into an upper section and a lower section which are respectively arranged above and below the ground; water inlet holes are formed in the side wall of the upper section, and a water seepage micropore array is arranged on the lower section; guide grooves are formed in the two sides of each row of micropore array in the vertical direction; the sealing steel plate can be tightly attached and fixed to the inner side wall of the outer pipe along the guide groove to seal the row micropore array; a permeable hole is formed in the surface of the hemispherical filter cover, is placed from an opening in the top end of the outer pipe, is limited in the upper section and is positioned below the side wall water inlet hole; and the floating cover is provided with a one-way air valve and hermetically covers the top opening of the outer pipe. Under the condition that power is not needed, the drainage speed of rainwater to surrounding stratums is increased, and maintenance is convenient.

The building assembly energy-saving light composite thermal insulation board comprises a thermal insulation board body, a storage groove is formed in the right end of the thermal insulation board body, a connecting base is slidably connected into the storage groove, a sliding groove is formed in the upper side of the thermal insulation board body, and a sliding cavity is formed in the thermal insulation board body; closing plates are slidably connected to the sliding grooves and the sliding cavities, sliding channels are formed between the sliding grooves and the sliding cavities, guide rods are slidably connected in the sliding channels, the two closing plates are fixedly connected through the guide rods, storage cavities are formed in the sliding grooves, first springs are fixed in the storage cavities, and plugging plates are fixed to the other ends of the first springs; and a transmission cavity is formed in the insulation board body. The invention belongs to the technical field of buildings, solves the technical problem that an existing thermal insulation board is easy to damage during carrying, and can ensure the mounting stability and improve the transportation safety.

The utility model discloses a drainage tube double-clamping device, and particularly relates to the technical field of drainage tube double-clamping, which comprises a mounting plate, supports are arranged on two sides of the top of the mounting plate, clamping components for clamping a drainage tube are fixedly arranged on the tops of the two supports, an adjusting component for adjusting the distance between the two supports is arranged on the top of the mounting plate, and a clamping component is arranged on the top of the mounting plate. The two clamping assemblies each comprise a round rod, the two round rods are fixed to the tops of the two supports correspondingly, the outer walls of the two round rods are each provided with two symmetrically-distributed first annular grooves, and annular plates are arranged in the first annular grooves in a sleeved mode. The clamping plates distributed in the front-back direction are buckled together through the two buckling rods, the two clamping plates distributed in the front-back direction firmly clamp and close the drainage tube, so that double clamping and closing of the drainage tube are completed, fluid in the drainage tube can be effectively prevented from flowing, meanwhile, the spring clamp is used for clamping clothes, the situation that the drainage tube is pulled due to the fact that the device is too heavy is avoided, and the drainage tube is not damaged. And the silica gel pads on the surfaces of the splints can prevent the splints from pinching the drainage tube.

The invention discloses a magnetic field-ultrasonic-assisted laser polishing composite manufacturing method. The method comprises the following steps that S1, a workpiece to be machined is placed on a machining table top; s2, adjusting the direction of a magnetic field through movement of an electromagnet on a guide rail; s3, controlling a moving assembly to align the to-be-machined position of the workpiece to a laser; s4, the lifting assembly is controlled to drive the machining table top to ascend and descend, and the focus of the laser is aligned with the surface of the to-be-polished position of the workpiece; s5, the magnetic field intensity is set, the frequency and amplitude of an ultrasonic generation assembly are set, a machining path is set, and the refrigeration temperature of a refrigeration assembly is set; and S6, the electromagnet, the ultrasonic generation assembly, the moving assembly and the laser are started, the moving assembly drives the machining platform to move according to the machining path, and polishing machining is conducted. The invention provides a magnetic field-ultrasonic-assisted laser polishing composite manufacturing device. The surface quality and precision of the workpiece can be rapidly improved.

The invention provides an anti-burst self-locking flat gate valve and relates to the technical field of flat gate valves, the anti-burst self-locking flat gate valve comprises a main valve body, an inner lifting valve piece, inner sealing rings and sealing valve plates, the inner lifting valve piece is vertically and slidably arranged on the inner side of the main valve body, the inner sealing rings are arranged on the two sides of the middle of the main valve body, and the sealing valve plates are arranged on the two sides of the upper portion of the inner lifting valve piece; an outflow pipe and an inflow pipe are arranged on the two middle sides of the main valve body in a communicating mode respectively, a lower valve body cavity is formed below the main valve body, a middle sealing sliding column is fixedly arranged on the inner side of the lower valve body cavity, and an outer communicating pipe is fixedly arranged on the side face of the main valve body. When the valve plate moves to be opened or closed, the inner lifting valve piece presses liquid in the valve body cavity downwards to flow outwards to the outflow pipe towards the outer communicating pipe, the pressure of the outflow pipe is smaller than that of one side of the inflow pipe, the situation that resistance of downward movement of the inner lifting valve piece is increased is reduced, and the problem that when the valve plate moves to be opened or closed, liquid in the valve plate storage cavity needs to be pressed outwards, and the valve plate is damaged is solved. And the moving resistance of the valve plate is increased.

The seawall slope protection ecological transformation structure comprises an embankment, a reinforcing assembly is arranged on one side of the top of the embankment, a slope protection assembly is arranged on the top of the reinforcing assembly, the slope protection assembly comprises a bottom plate, a protection foot is poured on the outer wall of one side of the top of the bottom plate, a riprap layer is arranged on the outer wall of one side of the top of the bottom plate, and a grating plate is placed on the outer wall of the top of the riprap layer; the riprap layer, the grating plate and the protection feet make contact with one another, and the grating plate comprises a core-spun cement fiber plate. According to the invention, during rising tide of seawater, the sides, with the convex blocks, of the blade plates are impacted, the blade plates rotate in the grooves, then silt carried by rising tide of seawater falls into the riprap layer through the grooves, and during subsequent falling tide, seawater falls to apply force to the other sides of the blade plates, so that the structure formed by the blade plates and the convex blocks is clamped in the grooves; a large amount of silt in the riprap layer is prevented from flowing along with seawater during ebb tide, the water and soil loss speed of the seawall coastal side slope protection is reduced, the number of times of manually supplementing the silt is reduced, and the seawall maintenance cost is greatly reduced.

The invention relates to the technical field of waste plastic harmless treatment, and discloses a solar heat supply plastic liquefaction-gasification two-step hydrogen-electricity co-production system and method.The system comprises a solar fused salt heat storage system, a liquefaction reactor, a gasification reactor, an organic Rankine cycle power generation device, a gasification reaction system and a hydrogen separator; the input end of the gasification reactor is provided with branches, the input end of one branch is connected with the output end of the liquefaction reactor, and the input end of the other branch is connected with the input end of the solar fused salt heat storage system; the input end of the solar fused salt heat storage system is used for inputting liquid H2O; the input end of the gasification reaction system is provided with branches, the input end of one branch is connected with the output end of the gasification reactor, and the input end of the other branch is used for inputting supercritical H2O; efficient conversion from waste plastic to high-value hydrogen-rich synthesis gas is achieved, meanwhile, input of high-grade electric energy of the system can be effectively reduced through the solar photo-thermal fused salt energy storage technology, and the economical efficiency of the system is improved.

The invention provides a grinding wheel dressing device for a common cylindrical grinding machine. The grinding wheel dressing device comprises a connecting base, a bearing assembly and a cutter mounting shaft. The bearing assembly comprises a base, a bearing seat and a guide seat, the base is arranged on the connecting seat in a liftable mode, and a containing groove is formed in the top face of the base. The bearing seat is arranged in the containing groove in a sliding mode, and the sliding direction of the bearing seat is parallel to the axis direction of the grinding wheel. The guide seat is arranged on the top face of the bearing seat, a containing hole is formed in the guide seat, and the axis direction of the containing hole is perpendicular to the sliding direction of the bearing seat. One end of the cutter mounting shaft is slidably arranged in the containing hole, a cutter mounting seat is arranged at the other end of the cutter mounting shaft, and a trimming cutter is arranged on the cutter mounting seat. According to the grinding wheel dressing device for the common cylindrical grinding machine, the position of a dressing cutter can be flexibly adjusted, so that the adjusting speed and the adjusting precision of the cutter are improved, and an arc at the edge of a grinding wheel is conveniently dressed.

The invention discloses desilting equipment for a water conservancy project and a using method of the desilting equipment, and belongs to the technical field of desilting equipment. The desilting equipment for the water conservancy project comprises a moving frame and further comprises two first supports, the two first supports are arranged on the two sides of the moving frame correspondingly, and a sludge transferring mechanism is arranged between the two first supports; the driving mechanism is fixedly arranged on the first support and used for driving the sludge transfer mechanism to transfer sludge at the bottom of the ditch; the two second supports are arranged on the two sides of the moving frame correspondingly, and a crushing and slitting mechanism connected with the sludge transferring mechanism is arranged between the two second supports and used for crushing stones in the ditch and slitting a hardened sludge layer at the bottom of the ditch; by transferring the sludge at the bottom of the ditch, most of the sludge in the ditch can be conveniently cleaned, the sludge is prevented from being deposited at the bottom of the ditch again, and the cleaning effect of the water conservancy ditch is guaranteed.

The utility model relates to the technical field of book processing, in particular to a scattered book stacking mechanism which comprises a first support and a second support arranged beside the first support, a conveying component used for continuously conveying book piles is arranged on the first support, and a conveying assembly connected with the conveying component is arranged on the second support. The conveying assembly is used for conveying at least one stack of books to a specified carrying position; an exhaust mechanism arranged above the conveying component and a pair of arrangement mechanisms arranged on the two sides of the conveying component respectively are sequentially arranged on the first support in the conveying direction of the book piles, and straightening mechanisms used in cooperation with the arrangement mechanisms are further arranged on the first support. The multi-axis robot is arranged on the base, and a clamping mechanism used for clamping multiple stacks of books is arranged at the execution end of the multi-axis robot; and under the action of the exhaust mechanism, the arrangement mechanism and the straightening mechanism, the stacking uniformity and the stacking effect of the book piles are improved.

A cold plate assembly, a battery pack support structure, a battery pack and an electric device, the battery pack comprises a cross beam and a tray, the cross beam is arranged in the tray and is used for separating an accommodating cavity, a gluing groove extending along the length direction of the cross beam is formed in the cross beam, and the cold plate assembly comprises a cold plate and a partition plate; the cold plate comprises a connecting surface facing the cross beam; the partition plate is connected to the connecting face, used for extending into the gluing groove and suitable for extending in the length direction of the cross beam. The partition plates extend into the gluing grooves of the cross beams, on one hand, the bonding area of bonding glue can be increased, and therefore the strength of bonding the cold plate assembly and the cross beams through the bonding glue is improved; and on the other hand, when the single cavity of the battery pack is in thermal runaway, even if the cold plate moves upwards to swell due to the failure of the adhesive, the displacement of the partition plate can continuously ensure the independence of the two isolated cavities in the battery pack, so that the electrolyte is prevented from flowing between the two cavities, and greater safety accidents are avoided.

According to the technical scheme, the high-temperature adhesive-resistant film is characterized by comprising a composite adhesive-resistant film body, a thermoplastic resin base layer is arranged in the middle of the interior of the composite adhesive-resistant film body, and high-temperature-resistant softening layers are arranged in the portions, above and below the thermoplastic resin base layer, of the interior of the composite adhesive-resistant film body respectively; release layers are respectively arranged in the composite glue-blocking film main body on the outer sides of the high-temperature-resistant softening layers, antistatic layers are respectively arranged in the composite glue-blocking film main body on the outer sides of the release layers, and coated paper layers are respectively arranged on the upper surface and the lower surface of the composite glue-blocking film main body. The anti-static layers are arranged in the portions, on the outer side of the release layer, of the adhesive-blocking film body respectively, and the anti-static layers are arranged on the outer side in the adhesive-blocking film body in the using process, so that the macromolecule anti-static agent is evenly arranged in the adhesive-blocking film body.

The utility model discloses a double-electric-layer capacitor, which relates to the technical field of capacitors and comprises pins, a main body is fixedly mounted at the lower ends of the pins, the pins are symmetrically arranged about the axis of the main body, an adjusting device is arranged in the main body and rotatably connected with the main body, and the adjusting device comprises a rotating plate. A plurality of connecting plates are correspondingly mounted on the upper surface and the bottom surface of the rotating plate, the pins penetrate through the upper surface of the main body and abut against the connecting plates on the upper surface of the rotating plate, a plurality of fixing grooves are formed in the rotating plate corresponding to the connecting plates, a resistor is fixedly mounted in each fixing groove, and the resistors penetrate through the tops and the bottoms of the inner walls of the fixing grooves and are connected with the connecting plates. The resistance values of the plurality of resistors are different, and an adjusting device is arranged, so that a worker adjusts the resistors and changes the working voltage of the capacitor according to needs, and further the overall capacitance and different pulses are filtered; the working preparation process is reduced, and the working efficiency is improved.

A vented cap (120) for a dispenser (110) or dispensing system (100) has a cap (210) and a vent plug (250) which are engaged in a sealed position in a delivery or non-use state and disengaged in a vented state; the vent plug is movable relative to the cap only after being engaged by the attached dispenser after the removal of the tamper-evident strip or tear strip (300).

The purpose of the present invention is to provide a prepreg which uses a resin composition that can be cured in a short period of time and is capable of suppressing resin flow during molding, and which has high workability. A prepreg characterized in that the prepreg contains an epoxy resin composition and reinforcing fibers, the epoxy resin composition containing component (A): a urea compound; component (B): a thermoplastic resin; component (C): an epoxy resin having an oxazolidinone structure; and component (D): a bisphenol epoxy resin that is solid at 25 DEG C, and satisfies the following conditions (1) and (2). Condition (1): The minimum viscosity of the epoxy resin composition measured by a rheometer under the condition of 2 DEG C / min is in the range of 3.0-6.0 Pa.s. Condition (2): the gelation time value of the epoxy resin composition, as measured under the condition of 145 DEG C by CURELASTOMETER (Registered Trademark), is in the range of 2.0-5.0 min.

The utility model relates to the technical field of terminals, in particular to a wiring terminal and a conductor wire. Comprising a metal nose, a current-limiting circuit board and a metal elastic sheet. The metal nose is used for being electrically connected with one end of a wire body of the conductor wire; the current limiting circuit board is used for limiting the magnitude of current and is electrically connected with one end of the wire body of the conductive wire; the metal elastic sheet and the metal nose are arranged at an interval in the first direction; the metal elastic sheet is electrically connected with the current limiting circuit board; when the metal nose is pressed, the metal elastic sheet can be in contact conduction with the metal nose, and the resistance value of the metal nose is smaller than that of the current limiting circuit board. According to the wiring terminal, the problem that electric sparks are generated in the wiring process can be solved, potential safety hazards are reduced, and safer and more reliable connection is achieved.

This utility model discloses a lotus root washing, sorting, and extraction device, including a cylinder with a feed inlet at one end. A rod is rotatably connected to the cylinder, and multiple sets of round rods are connected to one and the other ends of the rod. Multiple sets of discs are connected inside the cylinder, and each set of discs is rotatably connected to the rod. The operator feeds lotus roots into the device through the feed inlet, starts the motor to drive the rod to rotate, and the round rods agitate the lotus roots, preventing accumulation and ensuring thorough cleaning. The pump is turned on, and cleaning fluid is sprayed through pipes and nozzles to rinse the lotus roots. Mud and other impurities fall into the cavity through a filter screen. The cleaning status is monitored through an observation window, and the cleaning time is adjusted as needed. After cleaning, the bolts are loosened and the block is pulled out. The gap between the disc and the inner wall of the cylinder opens, and the lotus roots, pushed by the round rods, flow down the inclined disc through the gap into the lower layer. A small amount of cleaning fluid is discharged through the filter screen and the cavity from the drain outlet, reducing mud and sand flow with the lotus roots and improving the cleaning effect.

This utility model relates to the field of siphon drainage technology, specifically a roof siphon drainage anti-clogging device, including a rainwater hopper. An anti-vortex guide hood is fixedly connected to the middle of the inner wall of the rainwater hopper. A water inlet grille is fixedly connected to the top of the anti-vortex guide hood. An anti-clogging cover is fixedly connected to the upper surface of the rainwater hopper, and an anti-clogging pipe is fixedly connected to the bottom of the rainwater hopper. Through the cooperation of the anti-clogging cover and the water inlet grille, large and medium-sized impurities are effectively intercepted, reducing the number of impurities entering the device from the source and lowering the risk of clogging. The anti-vortex guide hood effectively suppresses vortex generation, ensuring a stable water flow state required for siphon drainage, avoiding siphon interruption due to vortices, and improving drainage efficiency. The rainwater hopper, as the core load-bearing component, organically integrates the anti-vortex guide hood, water inlet grille, anti-clogging cover, and anti-clogging pipe to form a complete preliminary drainage and anti-clogging structure.

Provided is a thermostat device with which temperature sensitivity and responsiveness can be improved, and which resolves the problem of instability of operation of a control valve, and the problem of hunting. The thermostat device is provided with: a housing (3) including a first inflow port (5a) for accepting cooling liquid from a radiator, a second inflow port (4b) for accepting cooling liquid that has passed through a bypass passage, and an outflow port (4c) for cooling liquid obtained by mixing the cooling liquids; a thermoelement (2a) which is accommodated in the housing (3), and which moves in an axial direction in accordance with the temperature of the cooling liquid from the second inflow port (4b); a control valve (2c) which controls an introduction quantity of the cooling liquid from the first inflow port in conjunction with the movement of the thermoelement (2a); a valve seat (5c) which is formed in a tip end portion of an annular projecting portion (5d) formed projecting in a movement axis direction of the thermoelement (2a) in the housing (3), and against which the control valve (2c) abuts when the valve is closed; and an annular groove (3d) configured by means of an annular gap which is continuous in a circumferential direction, and which is applied to the outside of the valve seat (5c).

The utility model discloses a knife wheel device for spinning machine belongs to the technical field of spinning, including upper knife wheel, rear knife wheel and front knife wheel, the upper knife wheel acts on the upper of metal pipe spare, the outside of metal pipe spare is equipped with the batten, the upper knife wheel acts on the just above of batten, the rear knife wheel acts on the rear of batten, the front knife wheel acts on the front of batten, when spinning processing, the upper knife wheel is under pressure to the center axle of metal pipe spare while rotating, and the front knife wheel and rear knife wheel always stick to the outer diameter surface of metal pipe spare. The utility model can press the batten on the outside of metal pipe spare to the inside diameter surface and form the inside batten, and the yield is high, and the processing is long and short.