70results about How to "Avoid the phenomenon of backflow" patented technology

The invention relates to a device used to restrain the slurry fluid impulse impact of concrete pump. Wherein, it comprises transmission channel, feeding cylinder and controller; the feeding cylinder is through to the transmission channel; the feeding cylinder has feeding piston and feeding piston rod; the feeding piston rod is connected to the controller; between the feeding cylinder and the material inlet of transmission channel, there is a switch valve for avoiding reflux of slurry. The invention has simple structure, to realize continuous flow of slurry, and reduce the impulse impact.

The invention relates to a needle point shielding type anti-backflow venous indwelling needle, belonging to an infusion medical device; the needle point shielding type anti-backflow venous indwelling needle comprises the following accessories: a needle tube, a catheter, a catheter seat, a needle core, a reflux valve, a double-wing needle seat and a needle point shielding device. The venous indwelling needle is good in safety performance and convenient to operate, and the needle tube is completely protected in a guide slot after venipuncture, so that the medical workers or others are prevented from being hurt by the exposed needle tube, blood is prevented from flowing back, and the blood is avoided being polluted by contacting with the outside air.

A modular data center comprises a machine cabinet and a heat extraction alarming system. A heat extraction door is arranged on the machine cabinet. The heat extraction alarming system comprises a temperature sensor, a comparison control unit and a sliding door control device and is used for sensing temperature inside the machine cabinet and outputting sensed temperature. The comparison control unit is used for receiving the sensed temperature and comparing if the sensed temperature is larger than or equal to a first reference temperature. When the sensed temperature is larger than or equal to the first reference temperature, a first control signal is output. The sliding door control device is used for controlling opening of the heat extraction door after receiving the first control signal to remove waste heat in the machine cabinet. The modular data center avoids a phenomenon of hot gas back flow caused by server accumulation of the waste heat.

The invention provides an energy-saving type treatment device for chemical engineering production waste gas. The treatment device comprises a purifying tower, a filter net, a gas discharging port, a pre-treatment mechanism, a stirring mechanism, an electrical control cabinet, a power line and a spraying mechanism. The pre-treatment mechanism, the stirring mechanism and the spraying mechanism are arranged, the waste gas passes through a temperature reducing device and an electric dust moving device to be pre-processed to prevent particles of dust and the like from entering the purifying tower,so that the purifying effect is improved, a motor is controlled by the electrical control cabinet to be electrified and operated to drive stirring blades to rotate to stir effective ingredients whichare precipitated in purifying liquid at the bottom of the purifying tower, so that the purifying effect of the purifying tower is improved, a water pump is controlled by the electrical control cabinetto be electrified and operated to spray out the purifying liquid at the bottom of the purifying tower through a spraying nozzle, the contacting area of the purifying liquid and waste liquid is increased, the purifying effect is improved, the waste gas is delivered through an air inlet pipe, the waste gas is uniformly distributed in the purifying tower through a flow dividing head, so that the waste gas is prevented from gathering in the purifying tower, the purpose of low energy consumption in the purifying process is achieved, which is green and protects the environment.

The invention discloses an anti-reflux disposable drainage apparatus. The anti-reflux disposable drainage apparatus comprises a folding drainage bottle, wherein the middle of the upper surface of thefolding drainage bottle is fixedly provided with a hook, one side of the hook is provided with a negative pressure tube connector, the other side of the hook is provided with a drainage tube connector, the negative pressure tube connector and the drainage tube connector are both connected to an inner cavity of the folding drainage bottle, the upper end of the drainage tube connector is fixedly andhermetically connected with a first drainage tube, an extended end of the first drainage tube is communicated with a liquid storage airbag, the first drainage tube is sleeved with a flow valve, and the other end of the liquid storage airbag is communicated with a second drainage tube. The anti-reflux disposable drainage apparatus has the advantages that through the mutual cooperation of an arranged rubber tube and a glass bead, the phenomenon of liquid reflux is avoided when the anti-reflux disposable drainage apparatus is not in use; through the arranged liquid storage airbag, the time of reflux of a drained substance is remitted once reflux occurs, thereby providing time for a medical worker to respond; through the mutual cooperation of the arranged flow valve and the rubber tube, reflux resistance is ensured doubly, and the practicability is high.

The invention discloses a sputum aspirator dedicated for pediatric nursing, comprising an exhaust port, a fixing seat, a pressure regulating valve, an adjusting knob, a check valve, a first connector,a connecting tube, a sputum suction device, a first needle, a pin, a sealing membrane, a second needle, a clamping groove and a collecting bottle. The sputum aspirator of the invention has the advantages of reasonable structure, low production cost and convenient installation, and the sealing membrane provided here can effectively ensure that the internal waste liquid does not leak to the outsideafter the collecting bottle is taken out and thus the pollution to the environment is also reduced; a motor provided in the invention can drive a sputum suction head sequentially through a coupling sleeve body, a transmission groove, a transmission head and a connecting cylinder body, thereby ensuring the range of sputum suction of sputum suction holes on one side without affecting the suction ofthe sputum suction; and sputum suction grooves are provided in the invention, so that the passage of outside air into the sputum suction grooves through a vent hole and small holes can be facilitated, thereby improving the absorption effect of the sputum, and at the same time, the discomfort caused by partial vacuum in the sputum suction site is also avoided.

The invention discloses an industrial wastewater treatment device and process. The industrial wastewater treatment device comprises a support, and a filter box and a sterilization box are fixedly connected to the two sides of the interior of the support correspondingly. Through cooperative use of a first filter screen, a second filter screen, activated carbon, an ultraviolet lamp, a cathode plate,an anode plate, a sampling mechanism and an aeration mechanism, large-particle impurities can be adsorbed through the first filter screen, the second filter screen and the activated carbon, wastewater can be sterilized through use of the ultraviolet lamp, through use of the aeration mechanism, bubbles can adsorb impurities in wastewater, and the problems that an existing industrial wastewater treatment device cannot selectively and circularly filter the wastewater in the using process, meanwhile, no specific sampling function exists, a user cannot conveniently sample and detect the wastewaterin real time, the sterilization mode is single, and the wastewater cannot be well sterilized and metal particles cannot be well removed are solved.

The invention discloses a converter gas blending combustion device for hot blast furnaces. The converter gas blending combustion device comprises a converter gas main branch pipe connected with a converter gas main pipe network. A converter gas sub-branch pipe is led out of the converter gas main branch pipe corresponding to each hot blast furnace. Each converter gas sub-branch pipe is communicated with a blast furnace gas sub-branch pipe of the corresponding hot blast furnace through an ejection pipe. Each ejection pipe is inserted into the corresponding blast furnace gas sub-branch pipe. The insertion position of each ejection pipe is located between a blast furnace gas sub-branch pipe flow regulating valve and a blast furnace gas sub-branch pipe shut-off valve on the corresponding blast furnace gas sub-branch pipe. A converter gas sub-branch pipe flow regulating valve is arranged on each converter gas sub-branch pipe. The converter gas blending combustion device has the advantages that the phenomenon of backward flow of blast furnace gas can be effectively avoided; an inlet valve of a blast furnace gas main branch pipe does not need to be frequently and substantially turned down, a flow regulating valve on the converter gas main branch pipe does not need to be adjusted frequently, and the use safety is high.

The invention discloses a novel cleaning machine for food production. The cleaning machine structurally comprises waterproof covers, water inlet pipes, a door panel, a machine body, supporting legs and a high water level alarm device, and the supporting legs are vertically welded to four directions of the bottom surface of the machine body. Compared with the prior art, the cleaning machine has theadvantages that the cleaning machine has a forward and reverse cleaning function through the combined arrangement of a main power transmission mechanism, an auxiliary forward and reverse transmissionmechanism, a forward and reverse transmission mechanism and a cleaning mechanism, two-way regular cleaning can be performed, the cleaning efficiency is high, the cleaning effect is good, residues onthe surface of food can be effectively avoided, water sources after cleaning can be recovered, the waste of the water sources is avoided, the cleaning machine has a high water level warning function through the combined arrangement of a float ball transmission mechanism and a high water level report actuation mechanism, an alarm is automatically sent out when the recovered water is at a high waterlevel to remind an operator of conducting timely processing, and the phenomenon of water backflow is effectively avoided.

The invention relates to the field of medical instruments, and discloses a syringe which comprises a cylinder, a push rod and a positioning stopper. A fixing hole is formed in the peripheral wall of the tail end of the cylinder, the push rod can reciprocate relative to the inner wall of the cylinder, the positioning stopper can be fixedly inserted into the fixing hole, the push rod comprises a rodbody and at least two ribs formed on the peripheral wall of the rod body at intervals, the ribs axially extend along the rod body, a partition piece is formed on at least one rib and extends towardsanother rib adjacent to the rib, an opening is formed between an extending end of the partition piece and the adjacent rib, and the positioning stopper passes the opening. According to the syringe, the push rod can be positioned on the cylinder in the extraction process at any time and can be effectively prevented from moving towards the head end of the cylinder, backflow of extracted liquid can be avoided, and medical accidents caused by misoperation are further effectively reduced.

The invention discloses an intelligent granule packing machine. The machine comprises a rectangular shell for placing a plastic bag, the plastic bag is placed inside the rectangular shell, the plastic bag is adsorbed and expanded by negative pressure suction holes in the inner wall of the rectangular shell, granules enter a packing cavity through an upper opening of a packing box, the gravity of the granules pushes and drives the whole packing box to descend to stretch a spring, the purpose of putting the granules into the plastic bag after the packing box stretches into the plastic bag is achieved, packing devices on two sides of the packing box further expand an opening of the plastic bag, the situation that powder in the granules adheres to the opening of the plastic bag and is not prone to sealing is avoided, when the granules are blocked by check blocks on the inner wall of the packing cavity, the granules slowly move downwards, and powder impurities in the granules fall into a dust collection cavity from an inclined dust collection channel to be collected through the check blocks, so that the purpose of removing the powder impurities in the granules is achieved, and the situation that sealing and granule effect are affected due to excessive powder impurities is avoided.

The embodiment of the invention provides a shallow cold energy cyclic cooling dehumidification and waste heat utilization system for a mine tunneling roadway. The tunneling roadway is provided with atunneling working face, the shallow cold energy cyclic cooling dehumidification and waste heat utilization system comprises an isolating body of a cylindrical structure, an overground unit, a shallowenergy exchange unit and a downhole unit; the isolating body is arranged in the tunneling roadway; the overground unit, the shallow energy exchange unit and the downhole unit are distributed from topto bottom and can communicate; the cylindrical structure divides the tunneling roadway into an inner roadway and an outer roadway which communicate with the downhole unit respectively; the overgroundunit comprises a heat pump unit, and the evaporation side of the heat pump unit is configured with a first valve and a second valve; and the shallow energy exchange unit comprises a transducer buriedin an underground soil layer, and the transducer is configured with a valve set. According to the shallow cold energy cyclic cooling dehumidification and waste heat utilization system for the mine tunneling roadway, on the one hand, the cooling dehumidification effect of the tunneling roadway is ensured, and on the other hand, full utilization of energy is achieved.

The invention discloses a continuous product detection device and method convenient for sampling, and the device comprises a fixed seat, and an automatic clamping and sampling assembly is fixedly installed at the edge of the top end of the fixed seat. The automatic clamping and sampling assembly is mainly formed by combining an electric rotating shaft, a sampling driving gear, a sampling driven gear, a sampling connecting rod, a sampling sliding rod and a sampling connecting frame, the electric rotating shaft has the function of taking materials from a cutting knife, and the sampling driving gear, the sampling driven gear, the sampling connecting rod, the sampling sliding rod and the sampling connecting frame have the function of synchronously taking materials from a needle cylinder; through cooperation of the automatic clamping and sampling assembly and the rotary buffering and collecting assembly, a worker can conveniently carry out positioning and sampling treatment on materials, the material sampling process of the worker is optimized, the stability of the material sampling process is guaranteed, meanwhile, the worker can conveniently carry out storage treatment on sampled waste materials, and the working efficiency is improved. And the pollution to the external environment caused by peculiar smell generated by placing the waste materials everywhere is avoided.

The invention belongs to the technical field of doors and windows, particularly relates to a door and window structure, and provides the following scheme for solving the problem that an existing doorand window structure is inconvenient in dust removal. The door and window structure comprises two window frames, coamings and two guide plates are fixed at the top and the bottom of the inner wall ofa window sash, and guide grooves are formed in the top and the bottom of each window frame; and two first grooves and second grooves are formed in the two sides of the bottom of each window frame correspondingly, pulleys are rotatably connected to the inner walls of the first grooves, dust guide plates are fixed in the first grooves, baffles are welded to the two ends of the tops of the dust guideplates, connecting plates are arranged on the inner sides of the dust guide plates, dust pushing plates are fixed to the inner sides of the connecting plates, arc-shaped parts are arranged at the bottoms of the dust pushing plates, and the dust pushing plates make natural contact with the tops of the pulleys. According to the door and window structure, when a window is opened or closed, the pulleys rotate, the dust in separation grooves is adhered to the surfaces of the pulleys, the dust pushing plates scrape the dust on the surfaces of the pulleys, and the dust enters a dust collection box along the dust guide plates to be collected under the inertia effect, so that the effect of convenient cleaning is achieved.

The invention relates to the technical field of energy-saving range hood equipment, and discloses an adsorption type range hood based on fluid pressure intensity. The adsorption type range hood comprises a fixed box body, one end of the fixed box body is fixedly provided with an impeller mechanism, and the other end of the fixed box body is provided with a smoke exhaust pipeline communicated to the outside of the fixed box body; and the middle part of the bottom end of the fixed box body is provided with a smoke suction air duct communicated to an inner cavity of the fixed box body, a filter screen is arranged in the middle of an inner cavity of the smoke suction air duct, and an oil collecting cup is clamped to the position, located at the bottom of the inner cavity of the smoke suction air duct, of the bottom end of the filter screen. According to the adsorption type range hood based on the fluid pressure intensity, the positions and angles between a conductive block I and a conductive block II on a control disc and a conductive ring on a movable disc are set, so that in the process of rotating the angle of a transmission connecting shaft, the range hood is turned on and turned off; and meanwhile, the exhaust power can be adjusted, so that the structural composition of the range hood is greatly simplified, and the range hood is simple to operate and convenient to use.

The invention relates to a mask, which comprises a mask body, filter shells are arranged on the left side and the right side of the front side of the mask body, and filter mechanisms are movably connected to inner cavities of the filter shells. According to the invention, a filter screen, a protective shell, a filter mechanism and a limiting mechanism are matched for use; the limiting mechanism isused; the position of the protective shell can be fixed; the filter screen and the filter mechanism are used; impurities in the air can be filtered; the purity of the breathing air of the user is ensured; and the problems that the existing a dust-proof mask with a filter element usually adopts screw-tightening method during use, the sealing effect is low, the impurities in the air cannot be effectively filtered, and the phenomenon of repeated disassembly is easy to cause jamming are solved. The filter element for the mask and a convenient disassembly and replacement structure of the filter element have the advantages that the filter element is convenient to replace, the sealing effect is good, and the filter element for the mask is worthy of popularization.

The invention relates to the technical field of hydraulic lifting equipment, and discloses a manual hydraulic jack with the effect of filtering engine oil. The top of the movable shaft is connected with one end of the movable shaft by a screw, the other end of the movable shaft is connected with a handle, the bottom of the movable shaft is fixedly installed with a connecting rod, and the bottom of the connecting rod is fixedly connected with a piston. A large oil cylinder and a small oil cylinder are fixedly installed, and a dividing plate at the bottom of the large oil cylinder and the small oil cylinder is fixedly installed inside the body. The manual hydraulic jack with the effect of filtering engine oil can prevent the oil in the oil tank from colloid and other impurities, which will cause blockage of the oil pipe or check valve, and ensure that the inner wall of the jack will not be severely worn, and at the same time avoid pollution. The environment inside the jack improves work efficiency.

The invention discloses soil composite biological deodorization equipment which comprises a concrete pond bottom, an odor pipeline and turf, the odor pipeline is arranged above the concrete pond bottom, a gas distribution layer is arranged at the lower end of the odor pipeline, and a glass fiber reinforced plastic grating is arranged above the gas distribution layer and fixed to the edge side of the concrete pond bottom. A volcanic rock filler layer is arranged above the glass fiber reinforced plastic grating, and a deodorization layer is arranged above the volcanic rock filler layer. According to the soil composite biological deodorization equipment, 30% of volcanic rocks are added into soil, components of single soil are improved and are changed into composite components, the soil composite biological deodorization equipment is resistant to hardening, easy in strain biofilm culturing and high in air permeability, 50 cm volcanic rocks are padded under the soil, biofilm culturing can be carried out for strain culturing, meanwhile, the stink retention time can be prolonged, stink can more uniformly pass through the equipment by the bottom built on stilts. Meanwhile, a heating circulating pipeline can be arranged in the soil layer according to needs, and it is guaranteed that strains can have the proper survival temperature in cold winter.

The invention relates to a treadle-type power water purification device. The device comprises a purification mechanism and a treadle-type chain wheel mechanism, wherein the purification mechanism comprises a crankshaft and at least two diaphragm pump assemblies connected with the crankshaft, piston rods of the diaphragm pump assemblies are connected with rod journals of the crankshaft, the rod journals connected with the adjacent diaphragm pump assemblies are opposite, water inlets of the diaphragm pump assemblies are connected with a sewage tank through one-way valves, water outlets of the diaphragm pump assemblies are connected with an inlet of a filter through one-way valves, a water outlet of the filter is connected with a clean water tank, and the crankshaft is in transmission connection with the treadle-type chain wheel mechanism. According to the water purification device, the novel diaphragm pump assemblies are adopted, power can be directly transferred into the diaphragm pumpassemblies, so that direct transmission of power is realized, and the power transmission efficiency and the water purification efficiency are improved.

The invention discloses buoyancy water lifting equipment for water conservancy and hydropower. The buoyancy water lifting equipment for water conservancy and hydropower structurally comprises a container tank, an observation meter and a supporting base, wherein the observation meter is connected with the interior of the container tank in a nested mode; the supporting base is connected with the bottom end of the container tank in a welded mode; a control valve, a drainage hole, a water outlet pipe, an air pressure pipe, a water inlet hole, a water inlet pipe and an air groove are arranged in the container tank; the control valve is connected with the interior of the water outlet pipe in a nested mode; the bottom of the water outlet pipe is connected with the two walls of the air groove in aclamped mode; the air pressure pipe is fixed to the right side of the water inlet pipe and is movably matched with the water inlet pipe; the drainage hole is fixed to the right side of the water outlet pipe; the water inlet hole is movably matched with the side wall of the water inlet pipe; and the control valve is movably matched with the right wall of the air pressure pipe. According to the buoyancy water lifting equipment for water conservancy and hydropower provided by the invention, water scale attached to a sliding wall is scraped back and forth by a scraper in the up-and-down floatingperiod of a scraper groove in a up-and-down floating cylinder wall through the change of water buoyancy, and the water scale is scraped off by a scraper head, so that the occurrence of the phenomenonthat the water scale is attached to the sliding wall for a long time to corrode the sliding wall is effectively avoided.

The invention relates to the technical field of chemical injection equipment, in particular to a liquid dangerous chemical injection device. A bottom frame, a supporting table and supporting frames are included. The supporting table is welded to the top end of the bottom frame. The supporting frames are welded to the left side and the right side of the top end of the supporting table. A tank is welded to the top end of the supporting frame. An inner cavity of the tank is connected with an inner tank through screws. The bottom end of the right side of the tank is fixedly provided with a monitoring mechanism. A discharging pipe is connected to the bottom end of the inner tank through a flange. The outer wall of the discharging pipe is in screw joint with a first valve. A conveying mechanismis connected to the bottom end of a water pump through screws. After injection, the conveying mechanism is closed, the conveying space of the water pump can be closed, accordingly, the phenomenon of backflow can be avoided, and the phenomenon that after dangerous chemicals corrode the water pump, the corrosion situation is not found in time, and consequently leakage is caused is avoided, the leakage volume can be rapidly observed during leakage, the situations of pollution or explosion or the like due to leakage and evaporation of the liquid dangerous chemicals are prevented, and potential safety hazards are avoided.

The invention relates to the technical field of flow measurement, and discloses a filter plate disassembly-free automatic cleaning device for flue gas flow measurement. The device comprises a fixed plate, flow guide pipes are fixedly mounted at the left and right ends of the fixed plate, and wedge-shaped frames are fixedly mounted at the left and right ends in the fixed plate. According to the filter plate disassembly-free automatic cleaning device for flue gas flow measurement, fluid is connected through a tightening screw, at the beginning, the fluid moves to firstly drive a sliding plate to move towards the two sides, then the sliding plate always keeps a tightly attached state with a sliding rail under the action of an extrusion rod in the moving process, the sliding plate drives a connecting pipe to be close to a connecting groove, thus the fluid enters the connecting groove through the connecting pipe, and then, when the fluid is stopped from being connected, the sliding plate is restored to an original shape under the action of the reset spring in the extrusion rod, and the connecting pipe and the connecting groove are disconnected, so that the effect of avoiding the phenomenon that the fluid flows back and pollutes the interior of the measuring device is achieved.

The invention discloses an armature iron core polishing device for an electric tool, and relates to the field of armature iron core polishing devices.The armature iron core polishing device comprises a transmission rod, a fixing assembly is arranged on the transmission rod, and a polishing assembly used for polishing an armature iron core is arranged on the fixing assembly. The armature core only needs to be clamped and fixed on one side distributed in the length direction of the transmission rod, the surface of the armature core can be polished by a fixed thickness through the polishing and grinding plate, and when protrusions exist on the surface of the armature core and are difficult to grind, the polishing and grinding plate can abut against the protrusions on the armature core to compress a first spring for avoiding; therefore, the protrusion position is slowly polished and ground off, and the phenomenon that the protrusion is polished off at a time and a pit which is difficult to repair is formed on the surface of the armature iron core is avoided.

The invention discloses a rubber roller for a corrugating machine, comprising a glue guiding mechanism and at least one glue applying mechanism sleeved on the glue guiding mechanism, the glue applying mechanism is connected with the glue guiding mechanism; the glue applying mechanism includes The glue guide column and the glue block arranged around the glue guide column, the glue block is fixed on the glue guide column; the glue guide mechanism includes a dispersed glue guide column and a hot glue delivery column, and the dispersed glue guide column cover It is arranged on the hot glue conveying column, and the glue outlet of the hot glue conveying column is connected with the dispersed glue guiding column; the rubber roller on a corrugating machine of the present invention passes through the hot glue conveying column, the dispersed glue guiding column and the glue guiding column in sequence It is transported to the surface of the upper rubber block, so that the glue does not need to be attached to the upper rubber roller through the outside of the glue box, saving the installation area of ​​the rubber box and improving the utilization rate of the site; at the same time, the one-way glue output can avoid the situation that the overall glue output of the upper rubber roller is difficult to control. It is convenient to control the amount of glue applied and the degree of uniform bedding of glue.

The invention provides an oil field carbon dioxide injection huff-puff oil extraction ground device. The device comprises a carbon dioxide injection system, an oil extraction system and a carbon dioxide recovery system, wherein the carbon dioxide injection system comprises a carbon dioxide storage tank and an injection pressure pump, one end of the injection pressure pump is communicated with the carbon dioxide storage tank, and the other end of the injection pressure pump is communicated with an oil extraction wellhead; the oil extraction system comprises an oil extraction pump, a multi-stage slag removal tank, a liquid-liquid separation tank and a gas-liquid separation tank, the multi-stage slag removal tank, the liquid-liquid separation tank and the gas-liquid separation tank are sequentially connected with the oil extraction pump, the liquid-liquid separation tank is communicated with a liquid carbon dioxide flow channel, and the gas-liquid separation tank is communicated with a gaseous carbon dioxide flow channel; the carbon dioxide recovery system comprises a gas impurity removal tank, an inlet end of the gas impurity removal tank is communicated with the liquid carbon dioxide flow channel and the gaseous carbon dioxide flow channel, an outlet end of the gas impurity removal tank is communicated with a compressor, and an outlet end of the compressor is communicated with the carbon dioxide storage tank. The device is advantaged in that pure carbon dioxide can be recycled, utilization efficiency of the carbon dioxide is improved, and generation of greenhouse gas is reduced.

The invention relates to the technical field of traffic bridge construction, and discloses a bridge grouting tube. The bridge grouting tube comprises a pre-embedded tube which is concrete-cast and reserved inside a wall body, wherein a liner tube is movably arranged inside the pre-embedded tube in a sleeving mode; and one end, outside a wall body, of the liner tube is equipped with a limiting bump. According to the bridge grouting tube disclosed by the invention, a grouting head is in blocking connection with the pre-embedded tube, and a grouting hole is directly formed in the end part of thegrouting head, so that during grouting, slurry is filled up outwards from the most distant position of a bridge gap; when slurry flows to the end surface of a bridge along the gap, the gap can be judged to be completely filled up with the slurry, so that a condition that people wrongly thinks that the gap is filled up as slurry, injected from the grouting hole in the front end of the grouting tube, flows out from the gap of the bridge in advance is avoided; and a wrong region for grouting is stopped, so that grouting quality is improved.

The invention discloses a device for accelerating sewage precipitation for controlling sewage. The device comprises a precipitation cabin; a mounting frame is welded on an outer shell of the precipitation cabin; damping rods are welded on the mounting frame; the top of the precipitation cabin is welded with a bearing plate; the top of the bearing plate is welded with a flocculant tank; the flocculant tank is connected with the precipitation cabin through a flocculation pipe; a pressure gauge is arranged on one side of the top of the bearing plate and is connected with a floating ball through a guide rod; precipitation plates are welded with the inner surface wall of the precipitation cabin; the bottom of each precipitation plate is welded with a clamping connection plate; a baffle plate is welded with the bottom end in the precipitation cabin; an electromagnetic valve is arranged at the middle end of the baffle plate; a collection cabin is welded with the bottom of the precipitation cabin; a water inlet pipe is welded with one side of the precipitation cabin; and a water outlet pipe is arranged on the other side of the precipitation cabin and is internally provided with a reverse flow prevention valve. The device provided by the invention is simple and reasonable in whole structure design, safe and efficient in precipitation process and simple and flexible in manipulation process and has very strong practicability.

The invention relates to a funnel stomach irrigator which comprises a funnel, an elastic capsule, a catheter, two groups of plugging components and an expansion component. The catheter is communicatedwith the funnel and the elastic capsule, the plugging components are used for preventing blocking of the catheter and slow flow and return of liquid, and the expansion component is used for expandingthe inner wall of an esophagus, the plugging components are symmetrically arranged outside the catheter, close to the top and the bottom, of the elastic capsule, and the plugging components compriseelastic clamping plates and locking plates. According to the technical scheme, by the aid of a linkage and compact structure, stomach irrigation treatment of a patient can be conveniently, rapidly andefficiently implemented by medical staff in the medical clinical practice operation process, and the stomach irrigator solves the technical problems that the catheter is easily blocked, fluid in thecatheter easily returns and slow flows, and the catheter easily touches the inner wall of an esophagus of the patient.