27results about How to "Realize self-sealing" patented technology

The fracturing gas production wellhead valve device comprises a transmission actuator and a gate valve assembly, the gate valve assembly comprises a valve body, the transmission actuator and the valve body are fixedly connected through a support, a valve seat sealing ring is detachably installed in the valve body, and the valve seat sealing ring is fixedly connected with the transmission actuator. A valve deck is detachably mounted at the top end of the valve body through a thread set, and a valve rod piece in transmission connection with the transmission actuator is slidably connected into the valve deck. The fracturing gas production wellhead valve device capable of being automatically sealed can effectively solve the problems that in the prior art, a wellhead gate valve is mainly used for controlling opening and closing of fluid in a pipeline and guaranteeing safety and stability of the production process, but the wellhead gate valve is prone to rusting after being affected with damp, and a valve rod fails after a long time; when a transmission actuator is damaged, a valve rod cannot move downwards, a gate plate cannot be closed, and fluid backflow or gas leakage is caused.

The invention belongs to the technical field of glass fiber testing, and discloses a continuous glass fiber weather resistance testing device which comprises a base, a cam divider is fixedly installed at the top end of the base, an air cylinder is fixedly installed at the output end of the cam divider, and a mounting frame is fixedly installed at the output end of the air cylinder. Turntables are axially mounted on the outer side face of the mounting frame at equal intervals, and clamping grooves are formed in the two sides of the top end of each turntable. By arranging the clamping assembly and the limiting plate, the limiting plate can automatically exert pressure on the clamping assembly in cooperation with the rotating and rising process of the rotating disc, namely, the clamping process is automatically achieved during glass fiber testing, meanwhile, the clamping state is automatically released after testing is finished, the whole process is automatically completed, manual control is not needed, and the testing efficiency is improved. The device does not need to be manually clamped and released during feeding and discharging, the feeding and discharging time is remarkably shortened, and the testing efficiency is improved.

The invention discloses an aluminum wood door and window capable of being automatically sealed, and belongs to the technical field of doors and windows, the aluminum wood door and window comprises an aluminum alloy outer frame, an inner frame and an inflation handle assembly, tight sealing of the door and window is achieved through cooperation of a magnetic attraction assembly and an automatic sealing assembly, and the door and window is provided with a magnetic cavity in which the magnetic attraction assembly is arranged; the inflation state can be controlled through the inflation handle assembly, then the penetrability of a magnetic field is adjusted, adsorption and release of the self-sealing assembly are achieved, the self-sealing assembly comprises a silica gel film layer and a sealing plate, the sealing plate is driven by magnetic force to move, and the silica gel film layer is made to be tightly attached to the aluminum alloy inner frame to achieve the sealing effect. The aluminum-wood door and window is easy and convenient to operate and excellent in sealing performance, rainwater permeation can be effectively prevented, the comfort and safety of the living environment are improved, and meanwhile a user can conveniently find and handle the water seepage problem in time.

The invention discloses a combined clean room air filtering device which comprises a filtering box, a flow guide pipe and a fixed box, a motor is fixed to the lower end face of the filtering box, a first gear is fixed to the output end of the motor and arranged in the filtering box, and a movable plate is further slidably connected into the filtering box. According to the combined type air filtering device for the clean room, the two sets of alternate filtering mechanisms are adopted, the non-stop replacement effect of the filtering mechanisms can be achieved, and therefore the clean environment in the clean room is effectively prevented from being damaged, the filtering mechanisms can be conveniently disassembled and assembled through the nested mounting mechanism, and the combined type air filtering device is matched with the linked air pressure fastening and sealing mechanism; according to the air filtering device, the stability and the sealing performance after the filtering mechanism is installed can be guaranteed, in the using process of the device, through the effect of airflow and in cooperation with a linkage transmission mechanism, an adjusting plate can swing in order, and therefore a basic guarantee is provided for uniform air supply in a clean room, and the actual using requirement is better met.

The utility model belongs to the technical field of air-conditioning clothes, and particularly relates to an air-conditioning clothes water-cooling pipeline connecting pipeline which comprises a liquid-cooling clothes, a first water-cooling pipeline and a second water-cooling pipeline are arranged on the liquid-cooling clothes, water inlets and water outlets of the first water-cooling pipeline and the second water-cooling pipeline are communicated with one end of a connecting hose, and the other end of the connecting hose is sleeved with a first quick connector. The first quick connector is in threaded connection with the second quick connector, the second quick connector is installed on the water segregator, the water segregator is communicated with a water outlet of the refrigeration cycle system, the first quick connector and the second quick connector each comprise an outer pipe body, a connecting rod is arranged on the inner wall of each outer pipe body, a conical notch is formed in one end of each outer pipe body, and each connecting rod is connected with a fixing base; one end of the guide rod is connected with a plug and sleeved with a spring, and the plug is connected with an ejector rod. A wearer can conveniently and rapidly insert and pull out the first quick connector and the second quick connector according to the activity amount of the wearer, so that the first water cooling pipeline and the second water cooling pipeline independently circulate or circulate refrigerants in a combined mode, and the cooling efficiency of the liquid cooling suit is adjusted by changing the flow of the liquid cooling suit.

The utility model discloses a trolley side sealing self-pressing device of a trolley type heating furnace. The trolley side sealing self-pressing device comprises sealing grooves formed in the two side walls of a trolley and sealing plates arranged on the two side walls of the heating furnace. The sealing grooves and the sealing plates are used in cooperation. The sealing groove is movably connected with the side wall of the trolley, a top wheel is arranged at the front end of the sealing groove, a plurality of rollers are arranged at the bottom of the sealing groove, a sliding rail is arranged below the sealing groove in the advancing direction of the trolley, the sliding rail is fixedly installed on the side wall of the trolley, the rollers can slide along the sliding rail, and a plurality of inclined face check blocks are arranged on the sliding rail. The inclined plane stop block is positioned on the rear side of the roller; the sealing groove is filled with refractory materials, and the lower end of the sealing plate can be inserted into the refractory materials. The trolley side sealing device is driven by the trolley to move, automatic sealing is achieved, an air cylinder, an oil cylinder and an external force device are not needed, and the investment cost, the failure rate and the maintenance cost are greatly reduced.

The automatic water stopping device for the tunnel pipeline drilling mechanism comprises a cylinder, an expansion ring, a sealing ring and a semi-ring plate, the sealing ring and the expansion ring are arranged in an inner cavity of the cylinder, the semi-ring plate is arranged between the sealing ring and the expansion ring, and a drill rod channel is formed in the middle of the cylinder; when underground water permeates along the surface of the drill pipe in the rotary drilling motion of the drill pipe, the expansion ring made of the water absorption expansion material expands when meeting water and extrudes the sealing ring, so that the inner ring surface of the sealing ring tightly presses the surface of the drill pipe, and automatic sealing of water leakage is achieved. According to the invention, automatic sealing is realized by utilizing the characteristic that the material swells when encountering water; the expansion material can be recycled, so that the cost is reduced.

The utility model discloses a kind of Cantharellus cibarius cultivation spray device, it is related to edible mushroom cultivation tool technical field, including base and multiple cultivation units, cultivation unit includes support pipe, cultivation tray and spray pipe, support pipe is coaxially installed at the center of cultivation tray, rotation shell cover is sealingly rotatably installed at the position of support pipe on cultivation tray upside, the part of support pipe inside rotation shell cover is provided with the water spray hole being communicated with rotation shell cover, spray pipe is horizontally fixed and is communicated with the side end of rotation shell cover, and the side end of spray pipe is axially equidistant and provided with multiple spray orifices.The utility model is set by the cooperation of support pipe, cultivation tray, rotation shell cover and spray pipe, water flow in support pipe enters rotation shell cover from water spray hole, and enters spray pipe, finally, it is sprayed from spray orifice, in this process, since the axis of spray pipe does not intersect with the axis of rotation shell cover, it can be guaranteed that rotation shell cover is along the axis of support pipe and stably rotates with spray pipe, and realizes comprehensive spraying.

The present invention belongs to the technical field of soft bread processing, and discloses a flour feeding device for preparing soft bread, including a feeding box and a feeding mechanism, wherein a feeding assembly is rotatably provided inside the feeding box, and a baffle located below the feeding assembly is fixed inside the feeding box. The present invention avoids too much flour from accumulating on the top of the feeding device when feeding flour, and at the same time utilizes the filter cloth sleeve in the processing assembly and the elastically connected adapter head and sleeve plate, utilizes the intake pressure in the dust filtering process, and cooperates with the negative pressure suction effect of reciprocating start and stop, so that the adapter head repeatedly moves up and down, thereby acting on the filter cloth sleeve, realizing self-vibration, actively shaking off and separating the filtered flour, realizing flour suction and dust reduction, and also realizing self-cleaning to avoid blockage, and at the same time, when shaking off the filtered flour, the shaken dust is quickly dropped into the feeding box, which has high efficiency of dust reduction and realizes self-clearing and collection and storage of filtered flying flour dust.

The invention discloses an unmanned sweeping vehicle with a movable garbage bucket, wherein a rolling sweeping assembly, a movable garbage bucket, and an exhaust assembly are installed on the vehicle frame, wherein the rolling sweeping assembly comprises a rolling sweeping cover, a rolling sweeping rotating shaft, a rolling sweeping brush, and a rolling sweeping driving motor, wherein the rear surface of the rolling sweeping cover is an inclined surface and a rolling sweeping cover garbage outlet is provided; the movable garbage bucket is provided with a garbage storage chamber, a garbage inlet of the garbage bucket, and a garbage outlet of the garbage bucket, and the movable garbage bucket is driven by an automatic garbage dumping assembly and completes the automatic garbage dumping operation; the exhaust assembly comprises an active exhaust hood, wherein the active exhaust hood is provided with an exhaust chamber, an exhaust hood air inlet, and an exhaust hood air outlet, a fan is installed at the exhaust hood air outlet, a filter is embedded in the exhaust chamber, and the active exhaust hood is driven by a horizontal driving linear module and a vertical driving linear module. The invention has the advantages of novel structural design and high degree of automation, and can realize automatic sealing and automatic garbage dumping, that is, it can effectively improve the utilization rate of the unmanned sweeping vehicle.

The invention discloses a suspension type unmanned aerial vehicle carrying device, and particularly relates to the technical field of unmanned aerial vehicle carrying, the suspension type unmanned aerial vehicle carrying device comprises an unmanned aerial vehicle, a traction rope and a box body, the front side of the box body is provided with a baffle, the bottom wall of the inner surface of the box body is fixedly connected with a jacking mechanism, and the left side wall, the right side wall and the rear side wall of the inner surface of the box body are jointly and fixedly connected with a limiting mechanism; a sliding mechanism is slidably connected to the middle of the rear end of the box body. According to the suspension type unmanned aerial vehicle carrying device, goods of different sizes can be automatically adapted to be limited and clamped through the limiting mechanism, the stability of the goods in the transportation process is ensured, automatic sealing of the box body is achieved through separation of triangular plates of baffles and triangular grooves of clamping blocks and overall falling of the baffles, and the practicability is high. And the baffle is pulled upwards, and the baffle is matched with the rectangular block and the push rod, so that the cargoes are integrally pushed forwards by a certain distance, the front ends of the cargoes are located on the front side of the front end of the box body, and personnel can unload the cargoes conveniently.

This utility model discloses a convenient pipe connection structure for pump rooms, relating to the field of pipe technology. The utility model includes a first pipe and a second pipe disposed on the right side of the first pipe, and further includes: an anti-detachment part disposed on both the first and second pipes; a self-sealing part installed inside both the first and second pipes; the anti-detachment part includes an anti-detachment connection component disposed on both the first and second pipes; and a sealing component installed on both the first and second pipes. By incorporating the anti-detachment part, this utility model solves the problem of existing connection structures being inconvenient to prevent the two pipe sections from detaching during use. Relying solely on simple threads for connection, the pipes can detach during operation due to water flow impact, vibration, and other factors, thus increasing equipment failure, safety accidents, and maintenance costs caused by pipe detachment or leakage.

The utility model provides a moisture-proof relay protection wiring junction box, which relates to the technical field of junction boxes, and comprises a box body, a wiring seat fixedly arranged in the box body, a plurality of threading holes arranged on the side wall of the box body, locking assemblies arranged at the threading holes, a plurality of pairs of sealing plates arranged on the inner wall of the box body in a sliding manner, and a connecting sleeve sleeved on a wire, the connecting sleeve is provided with an abutting inclined circumferential surface and an annular groove, a trapezoidal sliding disc is installed in the annular groove in a sliding mode, the outer circumferential surface of the trapezoidal sliding disc is provided with a reset inclined circumferential surface, and the connecting sleeve is provided with a rubber sealing sleeve matched with the outer circumferential surface of an electric wire. And in cooperation with the connecting sleeve, the sealing connection between the electric wire and the box body is realized.

The invention provides a truck tarpaulin system which comprises a tarpaulin frame provided with a first connecting part formed on the outer contour of the tarpaulin frame. The tarpaulin covers the outer side of the tarpaulin frame and is provided with a side edge and a bottom edge which are connected with each other, and the side edge of the tarpaulin is provided with a second connecting part; the side wall of the cloth rolling rod is connected with the bottom edge, and the tarpaulin can be unfolded and folded on the outer side of the cloth rolling rod in the circumferential direction of the cloth rolling rod along with rotation of the cloth rolling rod, so that the cloth rolling rod moves along the outer contour of the tarpaulin frame; wherein in the process that the cloth rolling rod moves along the outer contour of the tarpaulin frame, the first connecting part is matched with the second connecting part so as to seal a gap between the tarpaulin and the tarpaulin frame. Automatic sealing of the tarpaulin relative to the tarpaulin frame is achieved, a user does not need to manually take other sealing measures, user experience is facilitated, the burden of the user is reduced, and safety is higher.

The invention relates to a shearing machine, and belongs to the field of shearing machines, the shearing machine comprises a fixed cutter holder, a movable cutter holder, a material pressing seat, an upper beam, a lower beam and two side beams, the two side beams are distributed front and back, the upper beam and the lower beam are distributed between the two side beams at intervals up and down, the upper beam and the lower beam are fixedly connected with the two side beams, the fixed cutter holder is fixedly arranged on the lower beam, and the material pressing seat is fixedly arranged on the fixed cutter holder. The fixed tool apron is located between the upper beam and the lower beam, a fixed tool body is installed on the fixed tool apron, the movable tool apron and the material pressing base are distributed between the fixed tool apron and the upper beam in a left-right mode, a movable tool body is installed on the movable tool apron, the movable tool apron is driven to ascend and descend through a shearing oil cylinder, and the material pressing base is driven to ascend and descend through a material pressing oil cylinder. A purification mechanism is arranged on the movable tool apron and located between the fixed tool apron and the upper beam; according to the air purifier, dust-containing air is sucked in and dust is intercepted, air purification is achieved, in the purification process, cleaning of the filter screen can be achieved, the filter screen is prevented from being blocked, and the service life of the filter screen is prolonged.

The present invention discloses a fixed-depth water sampler, comprising a chamber, a one-way shaft installed at the axial end of the chamber, a partition plate installed on the outer wall of the one-way shaft, an elastic arc plate installed on the inner side of the chamber, a rubber piston installed in the middle of the elastic arc plate, a water inlet pipe installed on one side of the chamber, and a baffle installed on the end face of the one-way shaft. The sampling personnel of the present invention can sample water bodies of different depths, and when the workers operate, they only need to send the device directly into the water. The sampling device can automatically sample water of different depths and can be fully customized. Through the one-way shaft and the partition plate, the partition plates filled with water can naturally rotate downward, thereby realizing the method of sequential water inlet, and the present invention also provides weights of different masses. Since the water level pressures at different depths are different, the present structure can only lift the weights when a specific depth is reached.

The utility model belongs to the technical field of medical instruments, and particularly relates to an integrated needle integrating blood sampling, enhanced CT and magnetic resonance injection. The integrated needle comprises a blood taking needle and a fixing tube. The blood taking needle is used for being connected with a blood taking tube. Wherein the fixing tube comprises a flexible tube and an outer tube, the outer tube is a hard tube, a handle for holding is formed on the periphery of the outer tube, and the handle has a basic area for fingers to hold; one end of the outer pipe is coaxially connected to the hose, and the other end of the outer pipe is connected with a screw plug; a flexible sealing film is arranged in the middle area of the inner wall of the spiral plug, and when the blood taking needle is inserted into the outer tube, the sealing film in the spiral plug flexibly deforms and abuts against the outer wall of the blood taking needle, so that the blood taking needle is inserted into the outer tube in a sealed mode; when the blood taking needle is pulled out of the outer tube, the sealing film flexibly deforms and seals the channel of the outer tube. Therefore, the problems that an existing indwelling needle is complex in structure and not easy to nurse are solved.

The utility model provides a semiconductor packaging assembly, and belongs to the technical field of semiconductor packaging. The packaging structure comprises a packaging cover plate, a substrate and a semiconductor chip, the substrate is provided with a limiting groove and a mounting groove, the packaging cover plate is provided with a plurality of vent holes, the inner wall of the packaging cover plate is provided with a mounting cavity corresponding to the semiconductor chip, a dustproof film is adhered in the mounting cavity, and the lower side wall of the packaging cover plate is provided with a plurality of packaging modules. The packaging module comprises a limiting column fixedly connected with the lower side wall of the packaging cover plate. When the packaging cover plate and the substrate are buckled, the extrusion column extrudes the sealant in the liquid storage cavity, and the sealant is sprayed to the connecting cavity and the nozzle from the notch of the sealing film under the action of air pressure, so that automatic sealing of the semiconductor chip is realized, and extra glue injection treatment is not needed; the porous structure of the dustproof film allows air and some gas molecules to pass through, but prevents dust and most particles from entering the packaging cavity, and dust prevention and heat dissipation are both considered.

This utility model provides a fire pump connection device, relating to the technical field of fire pump connection devices. It includes a pipe body with a buffer mechanism on its outer surface. The buffer mechanism includes a buffer pipe, and a positioning pipe is connected to the upper surface of the buffer pipe. A lifting plate is slidably connected to the inner surface of the positioning pipe, and a limit post is fixedly connected to the upper surface of the lifting plate. A water outlet pipe is connected to the outer surface of the positioning pipe, and a positioning plug is slidably connected to the inner surface of the water outlet pipe. A support frame is fixedly connected to the inner surface of the water outlet pipe, and two first springs are fixedly connected to the outer surface of the support frame. This utility model, through the buffer mechanism, the cooperation of the first springs and the push rod with the positioning plug, achieves automatic sealing of the water outlet pipe in the non-working state, effectively preventing dust from entering and clogging the pipe or damaging components. It eliminates the need for an additional sealing cap, simplifying the structure while improving the practicality and service life of the equipment.

The multi-way valve comprises a valve body, a valve bonnet and a sealing piece, the valve bonnet is provided with a through hole penetrating through the first end and the second end of the valve bonnet and extending in the axial direction, the second end is connected to the valve body, at least part of the through hole forms a conical hole, and the sealing piece is arranged in the conical hole. The taper hole is gradually enlarged from the first end to the second end; the sealing piece comprises an elastic sealing plug, the elastic sealing plug is provided with an outer conical surface formed between the top end and the bottom end and a penetrating center hole, and the sealing piece is installed between the valve bonnet and the inlet end of the valve body, so that the elastic sealing plug is matched in the conical hole. By means of the structure, automatic sealing of the inlet end of the valve body and automatic locking and unlocking of the second long straight intervention consumable can be achieved, use of the multi-way valve is simplified, and safety of an operation is improved.

The present invention discloses a flexible sealing device for preventing air leakage between two side fences of a sintering trolley, characterized in that it comprises a soft magnetic strip and fixing bolts, the front side of the soft magnetic strip is fixed to the edge of the rear end outer wall of the front trolley side fence of the front sintering trolley by fixing bolts; 3-6 external pulling devices are evenly distributed on the outer wall of the soft magnetic strip along its length direction, the external pulling device is composed of a fixed block, a tension spring and a positioning rod, the fixed block is fixedly arranged at the front end of the outer wall of the soft magnetic strip, the positioning rod is fixedly arranged at the rear end of the outer wall of the soft magnetic strip, and the two ends of the tension spring are respectively fixedly connected to the outer end of the fixed block and the outer end of the positioning rod. The present invention has a simple structure and is easy to use. It is installed on the outer walls of the side fences on both sides of the rear end of each sintering trolley, so that automatic sealing is achieved between the front and rear sintering trolleys, and the sealing effect is good, which reduces the production cost and improves the sintering quality.

The invention discloses an optical shutter system for laser welding, which comprises a coupling main body part, and is characterized in that the coupling main body part is provided with a plurality of transmitting ports which are arranged in a penetrating manner and are inserted by optical fibers; the power part is arranged on the upper surface of the coupling main body part; the sealing part is driven by the power part to transversely move above the launching ports, and the sealing part is provided with a plurality of through holes corresponding to the launching ports; the sensing assembly is arranged along the periphery of the emission port and used for sensing whether an optical fiber exists in the emission port or not. The sensing assembly is arranged at the emission port, whether the optical fiber is inserted into the emission port or not is sensed through the sensing assembly, then the power part drives the sealing part to seal or open the emission port to achieve automatic sealing of the emission port when the emission port does not work or is remodeled or transferred, manpower and material resources are saved, and the efficiency is improved. The service life of laser welding equipment is prolonged, operation is convenient, the model changing speed is increased, and the effective operation time is shortened.

The utility model discloses an airtight disconnecting device which has a locking function and can achieve separation and automatic sealing. The airtight disconnecting device comprises a shell, a valve element, a connector and a connector valve assembly. The valve element and the shell share the sealing face of the connector valve assembly to achieve sealing, locking control is conducted on the connector valve assembly through the steel ball, the connector valve assembly can be pulled out by overcoming the locking force of the steel ball through external force, and the connector valve assembly can be pulled out through the elastic force of the first spring. A sealing assembly formed by the valve element and the first sealing ring can be sealed with the plane of the shell. When an airplane is jetted emergently, a sealing tape on a hatch cover can be automatically separated from a sealing system on the airplane. The locking function is achieved, and the locking force is adjustable; when the system is in a normal working state, the valve core and the shell valve seat share the sealing surface of the joint valve assembly, so that the emergency hatch cover is kept sealed.

This invention discloses a safe and explosion-proof energy storage cabinet and method based on an Internet of Things (IoT) system, belonging to the field of energy storage technology. The safe and explosion-proof energy storage cabinet based on an IoT system includes a base plate, and further includes: a cabinet assembly disposed on the top of the base plate; a mounting frame disposed on the cabinet assembly; a nitrogen replenishment assembly disposed inside the mounting frame, with its fixed end disposed on the inner wall of the cabinet assembly; a support rod fixed to the top of the base plate, with its top end connected to the cabinet assembly; an exhaust assembly disposed on the top of the support rod and penetrating the top wall of the cabinet assembly; and storage components disposed on both sides of the top of the base plate. This invention, by supplying nitrogen gas to the cabinet interior to replace the internal air after the door is closed, can significantly improve the safety and stability of the safe and explosion-proof energy storage cabinet based on the IoT system. Nitrogen, as an inert gas, effectively prevents the risk of fire and explosion, and reduces dangers caused by battery failure or other reasons.

The utility model relates to numerical control machine tool slide rail technical field especially, relates to a kind of sealing device of numerical control machine tool precision slide rail, including: machine tool slide rail body and machine tool slide block body slidingly connected on machine tool slide rail body;Two right angle cover plates, symmetrically slidingly attached to the top of the machine tool slide rail body, two sealing plates are fixedly installed at the front and rear ends of the two right angle cover plates, and the sealing plates are slidingly connected to the end of the machine tool slide rail body by limiting assembly;Two opening and closing components are respectively used to control the synchronous movement of the two right angle cover plates.The utility model disconnects the external power supply of the disconnecting device, de-energizes the two electromagnets, no longer repels the magnetic block, then, under the action of the two springs, the two right angle cover plates move towards each other until they are connected, which can automatically seal the machine tool slide rail body to ensure that the device is not exposed to the environment when not in use and ensure the equipment accuracy of the numerical control machine tool.

A mixture is placed in a cup hole of a cup body of the sintering cup, sintering grate bars are arranged at the end, away from a cup opening, of the cup body, gaps of the sintering grate bars communicate with the cup hole, and the air draft requirement in the sintering process is met. The material distribution pipe is movably inserted into the cup hole, the mixture is placed in the material distribution pipe and supported on the sintering grid section, a sealing groove is formed between the peripheral wall of the material distribution pipe and the cup hole, and the powder filling layer is filled in the sealing groove. The material distribution pipe can be pulled out after material distribution is completed, the powder filling layer can achieve automatic sealing between the mixture and the hole wall of the cup hole, the possibility that gaps exist between the mixture and the hole wall of the cup hole is effectively reduced, the edge effect caused by the gaps is reduced, the uniformity of the mixture in the sintering process is guaranteed, and the sintering quality is improved. The accuracy of parameters and results obtained by a sintering cup test is improved, and the technical problem that the accuracy of the results of the sintering cup test is not ideal enough is solved to a certain extent.

The utility model discloses a cement overflow device of a cement bin, and relates to the technical field of cement production equipment. The bottom of the storage bin is fixed to the welding support, and a feeding pipe communicated with the storage bin is fixed to one side of the storage bin; the stress plate is arranged in the storage bin, a sliding hole is formed in the bottom of the storage bin, a sliding column is arranged in the sliding hole in a sliding mode, the top end of the sliding column is fixed to the stress plate, and a reset structure enabling the sliding column to reset is arranged between the bottom end of the sliding column and the welding support; and the sealing mechanism comprises a middle cylinder, the middle cylinder and the feeding pipe are coaxially fixed, a rectangular opening is formed in the outer side of the middle cylinder, an extension plate is arranged in the rectangular opening in a sliding mode, and a fan-shaped block coaxial with the middle cylinder is fixed to one end of the extension plate. According to the utility model, the feeding can be automatically closed in the overflow process.