38results about How to "Unblocking" patented technology

The invention discloses a high-temperature cyclone separator anti-blocking apparatus, which is arranged on a high-temperature cyclone separator ash storage bucket, the high-temperature cyclone separator anti-blocking apparatus comprises a heating device used for heating the ash storage bucket, a temperature monitoring apparatus used for real-time detecting the temperature of the ash storage bucket, and a dredge apparatus. The temperature monitoring device is capable of warning when the temperature of the ash storage bucket is lower than a set value. The dredge apparatus is capable of dredging a blocking part when the ash storage bucket is blocked by blowing air in the ash storage bucket. In addition, the invention also discloses an anti-blocking method for the high temperature cyclone separator, which is characterized in that the temperature change of the ash storage bucket is monitored so as to determine whether the ash storage bucket is full, blocked or requires to be heated. The anti-blocking apparatus and method have the advantages of simpleness and utility, and the blocking condition of the high temperature cyclone separator can be effectively prevented and controlled.

The invention belongs to the technical field of guardrails and particularly relates to a highway guardrail used for municipal engineering. The highway guardrail includes a first guardrail mechanism, asecond guardrail mechanism and a protective board; when the protective board is hit by a car, the impact force can make the protective board move, the protective board pulls buffering belts, and winding belt pulleys release the buffering belts and make first rotating shafts rotate; the winding belt pulleys can release the buffering belts slowly through speed adjusting mechanisms. The higher the impact force performed on the protective board by the car is, the farther the protective board is moved after impact, and meanwhile, the more the buffering belts released by the winding belt pulleys are, the more the consumed impact energy is, so that the function of buffering the impact of the car is achieved, and the effect of protecting the car and a driver is achieved. Additionally, by utilizing compression of first block guiding springs to absorb remaining impact energy, not only can a structural protection effect be achieved, but also a greater impact force of the car can be better buffered, and the driver is better protected.

The invention belongs to the technical field of building construction, and discloses garbage treatment equipment for building construction. The equipment is technically characterized by comprising a box body, a first filter plate is fixedly mounted between the inner walls of the box body, motors are fixedly mounted on the front side wall and the back side wall of the box body, output shafts of the motors extend into the box body and are fixedly connected with vertical rotating discs, push-pull rods are rotationally mounted on the two opposite side walls of the left rotating disc and the right rotating disc, a horizontal impact plate glidingly connected with the inner wall of the box is rotationally mounted at the bottom ends of the left push-pull rod and the right push-pull rod jointly, multiple crushing cones evenly distributed at equal intervals are fixedly mounted at the bottom of the impact plate, a material shifting part is connected to the bottom of the impact plate, vertical grooves are formed in the left inner wall and the right inner wall of the box body below the first filter plate, mounting blocks are glidingly mounted in the vertical grooves, a second filter plate is fixedly mounted on the left mounting block and the right mounting block jointly, and multiple fixing plates distributed at equal intervals are fixedly mounted at the top of the second filter plate.

The invention relates to the technical field of fire-fighting valves, in particular to an intelligent fire-fighting valve. The cross-section of the section is trapezoidal. There is a passage opening through the section of the barrier plate. The upper end surface of the valve body is provided with a threaded hole communicating with the interior. The threaded hole is matched with a screw rod. Circular through hole, two abutting columns are provided for sliding in the circular through hole, circular grooves are provided on the end faces of the two abutting columns close to each other, limit springs are vertically provided in the circular through hole, and the upper end of the screw rod is provided with There is a heat-sensitive limit structure that limits the upper side of the column. The invention can be used for a fire-fighting valve, has the function of automatically opening for fire extinguishing in case of fire, and has high fire extinguishing effect, and the device has high resistance to water hammer and negative water hammer, and the overall service life is long.

The invention discloses a buried point data collecting and reporting method and device, and a computer readable storage medium. The method comprises the following steps: storing buried point data froman upper-layer service of an application locally; adding the buried point data stored locally to a queue, and locally identifying the buried point data added to the queue as a to-be-sent state; sending the buried point data in the queue to a corresponding server; if the buried point data is successfully sent to the server, deleting the buried point data successfully sent to the server from the local; and if the buried point data is not successfully sent to the server, adding the buried point data locally marked with a to-be-sent state to the queue again. On the premise of not changing upper-layer service codes, burying point statistics and little code modification amount, the blockage of burying point data in the queue is dredged, the burying point data is prevented from being lost in theapplication flash back reporting process, and the reliability of burying point data collection and reporting is improved.

The invention discloses an air filter device of a gas furnace draught fan. The air filter device of the gas furnace draught fan comprises an air filter and a draught fan, wherein the upper end of theair filter is provided with an air inlet, a sealing cover is arranged on the air inlet, the lower end of the air filter is provided with an air outlet, the lower end of the air outlet is connected with an air inlet of the draught fan through a pipeline, and an air outlet of the draught fan is connected with a gas furnace; and the air filter comprises a shell, the top end of the shell is provided with a mounting plate, a main filter element is mounted on the mounting plate, the lower end of the main filter element is provided with a safety filter element, and the lower end of the shell is provided with a reverse blowing gas outlet pipe. By arranging the air filter, the draught fan, the air inlet, the air outlet, the main filter element and the safety filter element, the problem that the traditional draught fan easily sucks dust into the gas furnace causing the sprayer blockage of the gas furnace is solved.

The invention relates to a mobile phone support. The support comprises a sucker, a cover, a base and an elastic part, the sucker comprises an adsorption part and a matching part which are connected with each other; an adsorption cavity is formed in the adsorption part; the cover body is arranged on the base; a containing cavity is defined by the cover body and the base; the cover body is providedwith a mounting hole, the matching part is movably arranged in the mounting hole in a penetrating mode and extends into the containing cavity, the suction cup is provided with a vent hole communicatedwith the adsorption cavity, and the suction cup can abut against the cover body and / or the base under the action of the elastic piece so as to block the vent hole; when the sucker moves relative to the cover body, the cover body and / or the base unblocks the vent hole; the mobile phone support further comprises a fixing piece, and the fixing piece is rotatably connected with the base. The mobile phone support can achieve taking and placing of the mobile phone through one-hand operation, and is convenient and fast to use.

A valve used at bottom of underflow pool is featured as passing valve stem top end through valve base and using hand wheel to regulate it up and down through screw thread, setting valve stem to be hollow tubular structure and making its head of top end be pipe nozzle as well as connecting its bottom end to hollow and hammer-shaped valve head, opening a numbers of injection holes all round on side surface from valve head to bottom point and setting valve head right above valve base.

The invention provides a super heavy oil steam cavity development method. The method is used for an oil reservoir developed by steam-assisted gravity drainage of double horizontal wells, and comprisesthe following steps of plugging a high-permeability area of the oil reservoir; injecting high-pressure fluid into a non-high-permeability area of the oil reservoir through the double horizontal wellsto expand capacity; and injecting steam into the double horizontal wells to remove blocking of the high-permeability area and extract oil. According to the technical scheme, for the oil reservoir developed by steam-assisted gravity drainage of the double horizontal wells, the high-permeability area of the oil reservoir is blocked firstly, then the high-pressure fluid is injected into the non-high-permeability area of the oil reservoir through the dual horizontal wells, and therefore, a steam cavity can be expanded; and then the steam is injected into the dual horizontal wells, so that on onehand, blocking of the high-permeability area can be removed, and on the other hand, as the steam cavity is enlarged, the viscosity of more super heavy oil can be reduced, the utilization degree of thesuper heavy oil reservoir can be improved, and the production effect is improved.

The invention discloses a preparation method of a nano oil displacement agent with intelligent characteristics. Graft temperature-sensitive polymers, hydrophilic polymers, and hydrophobic polymers to the surface of nanoparticles through covalent bonds to prepare composite nanoparticles with temperature-sensitive properties, and then compound them with alkali and surfactants to obtain Intelligent nano-displacing agent with temperature-responsive properties. The characteristic of the nanometer oil displacement agent is that the hydrophilic and lipophilic properties of the nanometer oil displacement agent can be adjusted as the temperature of the displacement fluid changes during use. The formation temperature is high, and the nano-displacing agent is lipophilic, which is conducive to the exfoliation of crude oil from the rock surface and the recovery factor. The surface temperature is low, and the nano oil displacement agent is hydrophilic, and oil-water separation can be achieved quickly without demulsifiers. Moreover, the size of nanoparticles will change accordingly with different temperatures, and realize the dual functions of controllable plugging, profile control and plugging removal in the formation.

The invention discloses a household paper conveying device and belongs to the field of household paper production equipment. The household paper conveying device comprises a working table, a band sawpaper cutter, paper roll feeding mechanisms, a paper roll clamping mechanism, a paper roll pushing mechanism and a paper roll discharging mechanism, wherein a workbench I is arranged on the working table, a workbench II and a workbench III which are arranged in parallel are fixed on the workbench I, the band saw paper cutter is arranged at the front end of the working table in length direction, aband saw of the band saw paper cutter is longitudinally and vertically arranged on the working table and is arranged in front of the workbench II or the workbench III, the band saw is a double-faced blade band saw, a paper roll placing groove arranged along the length direction is formed in the workbench II and the workbench III respectively, and the paper roll feeding mechanisms are arranged at opposite far sides of the workbench II and the workbench III respectively. The household paper conveying device disclosed by the invention is simple, reasonable and smart in structure, has a bidirectional cutting function, can realize automatic alternate continuous cutting of two paper rolls and realizes automatic line production, so that the working efficiency is improved.

The invention discloses a deepwater oil and gas field underwater facility and a hydrate unblocking method thereof. The underwater facility comprises a production platform, a production manifold, a production pipe system and an auxiliary pipeline system, and the unblocking method comprises the steps of judging a blocking position and type, implementing two-side depressurization according to the blocking type and the like. According to the deepwater oil and gas field underwater facility and the hydrate unblocking method thereof, hydrate blocking in an underwater wellhead, a jumper pipe, a production vertical pipe and a submarine pipeline can be effectively removed. According to the deepwater oil and gas field underwater facility and the hydrate unblocking method thereof, aiming at differentblocking positions and types, pressure of the interior of the underwater facility is reduced by utilizing a depressurization method, and a method for two-side depressurization of hydrate blocking points is realized, so that the problem of the hydrate blocking in the underwater wellhead, the jumper pipe, the production vertical pipe and the submarine pipeline can be effectively solved, and the method is simple to operate, economical and effective, and is of great significance to safe operation of a deepwater oil and gas field.

The invention discloses a blowout-proof and disassembly-proof pressure gauge valve, in which a connecting head is embedded and connected on the surface of a pipeline, and a sealing ring is fixed on the inner wall near the bottom of the connecting head, and a liquid passage hole is opened on the surface of the sealing ring , the inside of the connector is plugged with a pressure gauge body, and the surface of the pressure gauge body is fixed with a mounting ring. Through the cooperation of the above-mentioned structures, the present invention realizes the setting of the anti-theft box, avoids accidental rotation of the worm or intentional theft of the pressure gauge head, and achieves a certain purpose of preventing disassembly. At the same time, the pressing and fixing of the swing clamping assembly is released, so that the swing clamping assembly can swing, thereby releasing the clamping and fixing of the pressure gauge head, and it is convenient to remove the pressure gauge head, so that the pressure gauge head is removed At the same time, the connection head is blocked, preventing the liquid inside the pipeline from spraying out from the connection head, and improving the operation safety and operation efficiency.

The invention discloses a high-safety self-stabilizing skateboard for ski training, which belongs to the field of ski training. A high-safety self-stabilizing skateboard for ski training is provided with a plurality of elastic curly self-stretching airbags, which can be used during the skiing process. In the process, air can be quickly poured into the self-expanding airbag, so that the self-expanding airbag is deployed. When the self-expanding airbag is fully deployed, under the action of air extrusion, the self-extending interlayer gradually stretches out from the self-expanding airbag, making the self-expanding airbag Adjacent multiple magnetic hairs gradually approach each other, and finally attract each other, so that multiple self-stretching airbags are integrated to form self-maintaining and stable wings. Compared with the existing technology, it can significantly increase the stability of the ski when it is vacated, effectively ensuring The personal safety of beginners reduces potential safety hazards. At the same time, when landing, the air overflowing from the self-stretching airbag can buffer the falling of the skateboard, thereby improving the stability when landing and further ensuring safety.

The invention relates to the field of 3D printer nozzles, in particular to a 3D printer convenient for cleaning nozzles and a method for using the same, comprising a bottom plate, a heating and feeding device, a moving mechanism, an anti-blocking nozzle mechanism and a backflow mechanism. This kind of 3D printer, which is easy to clean the nozzle, drives the heating sleeve and the helical blade to rotate through the cooperation of the transmission gear and the inner gear ring, so that a negative pressure is formed in the return sleeve, so that the molten material in the heating chamber enters the return sleeve through the return hole. After the shutdown, the excessive material in the heating chamber is cooled, condensed and blocked. When it is used again, the heating sleeve heats the material, the reversed spiral blade pushes the material back to the return hole, and the material entering the heating chamber is reheated. The heating efficiency and quality of the end are improved, and there is no need to wait for the long heating and feeding of the heating feeding device, which effectively reduces the waiting time for mechanical operation. Block the discharge hole.

The invention belongs to the technical field of guardrails, and in particular relates to a highway guardrail used in municipal engineering, which includes a first guardrail mechanism, a second guardrail mechanism and a protective plate, wherein when the protective plate is hit by a vehicle, the impact force will make the protective plate move, The protective plate pulls the buffer belt, winds the pulley to release the buffer belt, and winds the pulley to make the first rotating shaft rotate; the speed regulating mechanism enables the winding of the pulley to release the buffer belt at a relatively slow speed. The greater the impact force of the vehicle hitting the fender, the farther the fender is moved by the impact, the more buffer belts are released by winding the pulley, and the more impact energy is consumed, thus realizing the function of buffering the vehicle impact and being able to play To protect the vehicle and the driver and passengers. In addition, the first guide block spring is compressed to absorb the remaining impact energy, which can not only protect the structure, but also better buffer the greater impact force of the vehicle, and further protect the driver and passengers.

The invention relates to the technical field of automatic bobbin arranging machine equipment in the textile industry, and provides a buffer mechanism. The buffer mechanism comprises a buffer body; thebuffer body comprises a buffer bin and a shielding assembly; the buffer bin is provided with a buffer inlet and a buffer outlet; and the shielding assembly is arranged corresponding to the buffer outlet and can move, so that the shielding assembly has a blocking state in which the shielding assembly blocks the corresponding buffer outlet, and an opening state in which the shielding assembly unblocks the corresponding buffer outlet. The shielding assembly is arranged at the bottom of the buffer bin, the space of the bottom of the buffer bin is narrow, and the situation that pipes bounce due tothe too large height difference is avoided; fallen bobbins can be opened at a time to fall into a bobbin basket; during bobbin falling, the bobbins can fall in a natural state, the bobbins cannot turn around when colliding with wallboards of the stock bin, bobbin erecting and clamping are avoided, and it can be guaranteed that the falling postures of the bobbins are consistent all the time, so that the bobbin arranging efficiency is greatly improved, and preparation can be made for later unmanned automatic design.

The invention discloses a preparation method of a microbial feed based on a straw fermentation technology. The preparation method comprises the following steps: preparing a microbial leavening agent, wherein the microbial leavening agent comprises the following substances: saccharomycetes, bacillus, lactic acid bacteria, bifidobacterium and cellulase; according to the preparation method of the microbial feed based on the straw fermentation technology, the finished microbial feed contains rich functional substances such as viable bacteria, enzyme groups, vitamins, lipids, organic acids, amino acids, various oligosaccharides and coenzyme factors, small peptides and the like, few infectious microbes exist, and the feeding effect is obvious; the feed utilization rate is improved; the compound microbial agent can effectively improve the immunity and resistance of fed objects, replaces antibiotics, further improves the quality of animal products, eliminates stink of a pigsty, has obvious ecological benefits, can degrade hemicelluloses in the feed into monosaccharides or oligosaccharides after being fermented by using the compound microbial agent, relieves the hindering effect of the monosaccharides or oligosaccharides on nutritional factors, and improves the feed utilization rate. Furthermore, the nutrition resistance is eliminated, and the digestibility and the utilization rate of nutritional ingredients are improved.

The invention relates to a fire coal conveying device. The conveying device comprises a first conveyor, a second conveyor and multiple sets of coal storage bins arranged in a manner of corresponding to a hearth, the first conveyor is arranged in an inclined manner, the lower side of the first conveyor communicates with a warehouse, the higher side of the first conveyor is located above one side ofthe second conveyor, the coal storage bins are arranged in parallel in the length direction of the second conveyor, each coal storage bin is provided with two guide hoppers arranged in the width direction of the conveyors, multiple guide devices used for guiding fire coal on the second conveyor into the corresponding guide hoppers are correspondingly arranged on the second conveyor, each guide device comprises a supporting frame, a baffle, a support used for mounting of the baffle and rotatably connected to the supporting frame, and a driving part used for driving the support to turn over inthe vertical direction of the second conveyor, and the supporting frame and the baffle are fixed to the second conveyor; two ends of the baffles extend out of the second conveyor, under the driving effect of the driving parts, the baffles are in abut joint with a conveying belt of the second conveyor or away from the conveying belt; and the effects that the occupied area of the conveyors can be reduced, energy losses are reduced, and the production cost is reduced are achieved.

The invention relates to the technical field of wastewater treatment, in particular to metallurgical wastewater treatment equipment. A metallurgical wastewater treatment equipment includes a wastewater treatment system and a filter device, the filter device includes a casing, a lower cylinder, a solid-liquid separation device, a rotating filter screen assembly, a blocking device, and a plurality of upper spring bars. The rotating filter screen assembly can move up and down and is rotatably arranged in the shell, and is above the sewage outlet. The blocking device is used to block the sewage outlet, so as to move and rotate downward with the rotating filter screen assembly to open the sewage outlet; The liquid separation device can be slid up and down in the casing. The upper end of the upper elastic bar is connected to the solid-liquid separation device, and the lower end is connected to the rotating filter screen assembly; the upper end of the lower elastic bar is connected to the rotating filter screen assembly, and the lower end is connected to the water outlet pipe to realize the filter device. It can automatically discharge sewage when it is blocked by large particles of impurities.

A valve used at bottom of underflow pool is featured as passing valve stem top end through valve base and using hand wheel to regulate it up and down through screw thread, setting valve stem to be hollow tubular structure and making its head of top end be pipe nozzle as well as connecting its bottom end to hollow and hammer-shaped valve head, opening a numbers of injection holes all round on side surface from valve head to bottom point and setting valve head right above valve base.

The invention discloses an oil residue filtering device for an oil pipeline. The oil residue filtering device comprises a filter shell and a filter core, wherein the lower end of the filter shell is fixedly connected with a sewage draining exit, the sewage draining exit is in threaded connection with a sewage draining valve, one side of the filter shell is provided with an oil inlet flange, the other end of the filter shell is provided with an oil outlet flange, a cleaning hairbrush is fixedly mounted outside a rotating shaft, the opening end of the filter core is mounted on a mounting plate, the filter core is arranged outside the cleaning hairbrush, a differential pressure transmitter is arranged on the filter core, and is electrically connected with a rotating motor, and an air nozzle is arranged at the lower end of the filter core. By arranging the filter shell, the sewage draining exit, the oil inlet flange, the oil outlet flange, the cleaning hairbrush and the air nozzle, the problems that a traditional cleaning and filtering device is inconvenient to clean, transportation must be stopped during cleaning, and huge economic loss is caused are solved.

The invention discloses an intelligent constant current and high-precision temperature control and pressure regulating valve, which relates to the technical field of regulating valves. The invention is provided with a self-sealing valve core and a valve stem, and a self-sealing channel is opened inside the valve stem, and the self-sealing valve core It is composed of a sealing seat, an air supply seat and an adjustment piece. The gas enters the self-sealing valve core through the self-sealing channel to provide a gas source for the sealing seat and the air supply seat. When the external gas supply is interrupted momentarily, the adjustment piece can be used to adjust the self-sealing valve core. The channel is blocked, so that the gas inside the sealing seat and the air supply seat cannot flow back through the self-sealing channel, so that the sealing seat and the air supply seat are always in an inflated state, that is, the self-sealing valve core can still block the adjustment hole, It makes it possible to control the fluid, provides time for maintenance personnel to perform maintenance, and avoids accidents.

The invention relates to the technical field of fire-valves, in particular to an intelligent fire valve. The intelligent fire valve comprises a valve body; a straight pipe section and a bent pipe section are arranged on one side of the valve body; a cavity is formed in the valve body; a blocking plate section is arranged in the cavity; the section of the blocking plate section is trapezoidal; a passing opening is formed in the blocking plate section in a penetrating mode; a threaded hole communicated with the interior is formed in the upper end face of the valve body; a threaded rod is arranged in the threaded hole in a matched mode; a rotating handle is fixedly arranged at the upper end of the threaded rod in a sleeved mode; a circular through hole is vertically formed in the threaded rod; two abutting columns are arranged in the circular through hole in a sliding mode; circular grooves are formed in the end faces, close to each other, of the two abutting columns; a limiting spring is vertically arranged in the circular through hole; and a thermosensitive limiting structure for limiting the abutting column on the upper side is arranged at the upper end of the threaded rod. The intelligent fire valve can be used for a fire valve, has the function of automatically opening to extinguish fire in case of a fire, has a relatively high fire extinguishing effect, has a relatively high resistance effect on a water hammer and a negative water hammer, and is relatively long in overall service life.

The invention discloses an intelligent constant-current high-precision temperature-control pressure-control regulating valve, and relates to the technical field of regulating valves. The intelligent constant-current high-precision temperature-control pressure-control regulating valve is provided with a self-sealing valve core and a valve rod, a self-sealing channel is formed in the valve rod, and the self-sealing valve core is composed of a sealing seat, a gas supply seat and a regulating part. Gas enters the self-sealing valve core through the self-sealing channel, a gas source is provided for the sealing seat and the gas supply seat, when external gas supply is instantaneously interrupted, the self-sealing channel can be blocked through the regulating part, gas in the sealing seat and the gas supply seat cannot flow back through the self-sealing channel, the sealing seat and the gas supply seat are always in an expansion state, in other words, the self-sealing valve core can still block a regulating hole, so that fluid is controlled, time is provided for overhauling of overhauling personnel, and accidents are avoided.

The invention discloses a grinding device for processing composite modified bentonite in the technical field of bentonite processing. The grinding device comprises a base, a feeding box mounting frame, a driving mechanism, a third motor and a second air blower, the surface of the base is fixedly connected with a grinding equipment mounting frame, the top end of the grinding equipment mounting frame is fixedly connected with the driving mechanism, a telescopic rod is installed in the interior of the driving mechanism, one end of the telescopic rod is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with four sets of connecting rods, and the bottom ends of the four sets of connecting rods are fixedly connected with a mounting plate. The grinding device has the beneficial effects that staggered movement can be carried out through the arrangement of grinding equipment, and therefore blockage cannot be generated in the grinding process in the grinding equipment, and the grinding effect is improved; pretreatment can be carried out on materials before grinding, scattering and drying are carried out to prevent caking in the grinding process, and therefore the grinding effect is further improved; and filtering can be carried out on impurities in the materials during collection, and therefore the purity is improved.

The invention belongs to the field of oil gas well exploitation and particularly relates to an oil gas well yield increase method using a hydration reaction hydrogen release component. The hydrogen release component is wrapped with capsules made of different materials and isolated from water and air, the capsules made of different materials are decomposed at different temperatures, and a reactant starts to react and release hydrogen and thermal energy. The method can control release amount and release time of hydrogen, and also solves the problem that in yield increase consecution, hydrogen is violently released at a time and accordingly efficiency of hydrogen is not fully used. When an area near a well is heated through energy released by downhole reaction of a first solution and a second solution, the generated energy is released outwards in a gas pulse mode, and paraffin, asphaltene and other organic macromolecular blocking materials are subjected to catalytic cleavage reaction at high temperature, so that blocking materials in an oil way are removed, permeability is increased, and the aim of resuming production is achieved.

The invention discloses a sputum excretion device for a critical patient in the neurosurgery department, and the device comprises a sputum collection bottle with an opening in the top; the sputum collection bottle is sleeved with a bottle cap in a threaded mode, the right side of the sputum collection bottle is fixedly connected with a U-shaped handle, a sputum suction hose is arranged above the bottle cap, and an air pump is fixedly installed on the right side of the top of the bottle cap; the bottle cap is provided with a two-way quick cut-off mechanism and a quick-locking type opening sputum suction mechanism matched with the two-way quick cut-off mechanism. The design is reasonable, the two-way plugging can be automatically removed when the air extracting pump is started, the air inlet end and the sputum suction hose can be rapidly plugged in the two directions when the air extracting pump is stopped, the phenomenon that a person forgets to plug after use can be effectively avoided in the mode that plugging and plugging removing are linked with starting and stopping of the air extracting pump, and the risk that sputum flows out or into the sucking pump due to accidents such as toppling and the like after sputum suction is completed is reduced, and use is facilitated.

The invention discloses a household paper conveying device and belongs to the field of household paper production equipment. The household paper conveying device comprises a working table, a band sawpaper cutter, paper roll feeding mechanisms, a paper roll clamping mechanism, a paper roll pushing mechanism and a paper roll discharging mechanism, wherein a workbench I is arranged on the working table, a workbench II and a workbench III which are arranged in parallel are fixed on the workbench I, the band saw paper cutter is arranged at the front end of the working table in length direction, aband saw of the band saw paper cutter is longitudinally and vertically arranged on the working table and is arranged in front of the workbench II or the workbench III, the band saw is a double-faced blade band saw, a paper roll placing groove arranged along the length direction is formed in the workbench II and the workbench III respectively, and the paper roll feeding mechanisms are arranged at opposite far sides of the workbench II and the workbench III respectively. The household paper conveying device disclosed by the invention is simple, reasonable and smart in structure, has a bidirectional cutting function, can realize automatic alternate continuous cutting of two paper rolls and realizes automatic line production, so that the working efficiency is improved.