35results about How to "Speed up siphoning" patented technology

A mechanical pot culture automatic water supply system comprises a water supply mechanism and at least one flowerpot communicated with the water outlet end of the water supply mechanism. The water supply mechanism comprises a closed water storage barrel filled with water. Water storage grooves are formed in the flowerpots respectively. A water outlet and an assembling port located above the water outlet are formed in the bottom of the water storage barrel. A check valve used for blocking water in the water storage barrel from flowing outward is arranged at the assembling port of the water storage barrel. The water storage grooves are provided with water inlets communicated with the water outlet through pipelines. An air inlet formed in the outer portion of the water storage barrel is formed in one end of the check valve, an air outlet formed in the water storage barrel is formed in the other end of the check valve, and the air outlet is located in the position flush with the liquid level of the water storage grooves in height. According to the mechanical pot culture automatic water supply system, water can be supplemented to the water storage grooves through the siphon principle, the liquid level height of the water storage grooves is kept constant, and therefore the automatic pot culture watering function is achieved.

The invention provides a water pre-injection type double-seal pedestal pan. The pedestal pan comprises a water supply device, a pedestal pan main body and a mechanical sealing valve; the pedestal pan main body is provided with a trap, the trap is used for sealing the stored water, and the water sealing depth of the trap is 0 to 60 millimeters; the mechanical sealing valve is positioned below the trap and is not in direct contact with the sealed water in the trap, and the mechanical sealing valve is connected to a blow-off port of the pedestal pan main body; the water supply device is used for providing a flushing state and a water pre-injection state; in the water pre-injection state, the mechanical sealing valve is closed, and the pre-injected water is stored; in the flushing state, the mechanical sealing valve is opened, and sewage is drained; and in the water pre-injection state, the water sealing depth of the water pre-injection type double-seal pedestal pan is more than 55 millimeters. The double-seal pedestal pan is simple in manufacture and reliable in performance, and has optimal sealing performance, pollution discharge performance, water-saving performance and using performance.

The invention relates to the technical field of household electric appliances, in particular to a siphon hot pot device. The siphon hot pot device includes a soup pot and a material disk arranged in the soup pot; the material disk divides the soup pot into an upper space and a lower space, the upper space is used for containing food materials, and the lower space is used for containing soup or water; the material disk is provided with a siphon channel which makes the upper space communicated with the lower space, soup in the soup pot is squeezed into the material disk through steam pressure inthe siphon channel, and the food materials in the material disk are thus soaked and cooked; then fire of the hot pot is reduced or heating of the hot pot is stopped, the material disk is slightly moved, a gap between the soup pot and the material disk is opened, the steam pressure of the lower space in the soup pot is reduced, the soup in the material disk thus flows back, cooked food is exposedoutside for diners to eat, and after diners eat the food, new food materials are added for cooking; by applying the device to the hot pot, the situation that superfluous food is blended in the soup and thus the taste of the soup is complex and the original taste is lost can be avoided, and it is more convenient for users to eat the hot pot.

A spray type siphon toilet with accelerating siphon includes a toilet body and a first water tank, the top of the urinal of the toilet body is disposed with a flushing hole, the bottom of the urinal of the toilet body is disposed with a spray hole, the toilet body further comprises a flushing waterway to the flushing hole and an spray waterway to the spray hole; the first water tank is disposed with a first drain valve, the inlet of the spray waterway is connected to the drain port of the first drain valve; wherein the spray waterway is connected to a water seal structure, air cannot enter the spray waterway after the first drain valve drains; the water seal surface is even with the water seal surface of the urinal of the toilet body.

The invention discloses a siphon acceleration jet type siphon closestool, which comprises a closestool body and a first water tank, wherein the top of an excrement pool is provided with flushing holes, the bottom of the excrement pool is provided with a jet opening, the closestool body is also provided with a flushing water conveying pipeline connected to the flushing holes and a jet water conveying pipeline communicated to the jet opening, a first water discharging valve is arranged in the first water tank, an inlet of the jet water conveying pipeline is communicated with a water discharging opening of the first water discharging valve, the jet water conveying pipeline is also communicated with a water seal structure so that air cannot enter the jet water conveying pipeline after the first water discharging valve completes the water discharging, and the water seal surface of the water seal surface is at the same level as the water seal surface of the closestool body. The siphon acceleration jet type siphon closestool has the advantages that after the structure is adopted, the jet water conveying pipe is respectively in a full water state or a state approaching to the full water after the water discharging is completed in each time, so during the next starting for water discharging, the jet water conveying pipeline does not need to be filled again, the excrement body can accelerate the siphon formation, and in addition, the flushing capability of the excrement pool wall can be favorably improved.

The invention discloses high-strength heat-resistant self-repairing concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 340-360 parts of cement, 140-160 parts of fly ash, 750-800 parts of gravels, 730-750 parts of medium sand, 110-120 parts of coarse aggregate, 1-5 parts of a water reducing agent, 170-180 parts of water, 1-5 parts of polypropylene fibers, 50-80 parts of mineral powder, 1-5 parts of an early strength agent, 20-30 parts of composite fibers and 5-10 parts of a self-repairing material, wherein the coarse aggregate is formed by mixing hollow glass beads and ceramsite in a mass ratio of 1: (1.2-1.5); the composite fibers are composed of 5 to 10 parts of aramid fibers, 3 to 6 parts of glass fibers, 5 to 10 parts of resorcinol-formaldehyde resin and 0.3 to 1.4 parts of copolyoxymethylene; and the self-repairing material comprises 6 to 8 parts of cement and 2 to 4 parts of diluted epoxy resin, and further comprises 0.5to 1 part of calcined tuff and 0.5 to 1 part of carbon nanotubes. The high-strength heat-resistant concrete has the advantages of high strength and favorable heat resistance, and can realize self-repairing when a wall has broken cracks.

A spray type siphon toilet with accelerating siphon includes a toilet body and a first water tank, the top of the urinal of the toilet body is disposed with a flushing hole, the bottom of the urinal of the toilet body is disposed with a spray hole, the toilet body further comprises a flushing waterway to the flushing hole and an spray waterway to the spray hole; the first water tank is disposed with a first drain valve, the inlet of the spray waterway is connected to the drain port of the first drain valve; wherein the spray waterway is connected to a water seal structure, air cannot enter the spray waterway after the first drain valve drains; the water seal surface is even with the water seal surface of the urinal of the toilet body.

The invention relates to an apparatus and system for determining human body physiological parameters based on the reaction color of body fluid test paper. The apparatus and system are designed for obtaining more accurate parameters of test paper color reactions. The apparatus comprises a shell, which is provided with a slot for inserting test paper. A control circuit board is arranged in the shelland at least comprises a controller and a reaction color collection module. The reaction color collection module comprises an illumination device and a detection data acquiring device for obtaining the reaction color parameters of test paper. The battery of the control circuit board supplies sufficient power to the illumination device and the detection data acquiring device through a voltage stabilizing circuit. The shell is also provided with a socket for inserting test paper or a test paper bearing device. The provided apparatus and a test paper bearing device can obtain more accurate reaction color parameters of test paper.

The invention relates to high-breathability yarn and a manufacturing method thereof. The fabric related to the yarn has high breathability. The high-breathability yarn is composed of fibers with dumbbell-shaped cross sections. The high-breathability yarn is 75D / 22F dumbbell yarn. The manufacturing method of the high-breathability yarn includes a spinning step and a dyeing step; in the spinning step, yarn fibers with the dumbbell-shaped cross sections are sprayed out by customizing special-shaped spinneret plates; in the dyeing step, reduction cleaning is reinforced, and therefore the phenomenon that fine dye auxiliary particles block pores of the yarn can be prevented. The high-breathability yarn enhances the breathability of the fabric, enhances the moisture absorption effect of the fabric on sweat, improves wear comfort, and greatly lowers clothes cost.

The invention belongs to the technical field of reactive distillation, in particular relates to a reactive distillation unpowered circulation technology and device. The technical scheme is as follows: gaseous-phase condensate in a rectifying tower tray falls into a downflow weir from a tower plate; under the action of potential difference, self gravity and siphon force, materials in a forced convection tube and a natural convection tube on the bottom of the tower kettle of the rectifying tower are mixed; then the mixture enters a reboiler; after the mixture reaches reaction temperature after being heated by the reboiler, mixed liquor enters the tower kettle of the rectifying tower; and after the mixed liquor reacts, gaseous phase rises to the rectifying tower connected with the upper end of the tower kettle of the rectifying tower so as to realize unpowered circulation. Reaction and separation are centralized in one tower, the purpose of unpowered circulation is achieved by the thermodynamic principle, the siphoning and the potential energy difference, and defects existing at present can be effectively solved.

The invention discloses efficient yarn jet waxing equipment for textile processing and a using method thereof, and particularly relates to the field of textile processing. The efficient yarn jet waxing equipment comprises an equipment base, a pay-off rack is fixedly installed on the top face of the equipment base, and a yarn fuzzing mechanism, a circulating air pump, an air distribution ring and a molten wax storage box are fixedly connected and installed on the top face of the equipment base. The yarn fluffing mechanism and a jet waxing mechanism are located on the same horizontal line, the two ends of the jet waxing mechanism are fixedly connected with the gas distribution ring and a wax liquid recycling mechanism respectively, and the end of the gas distribution ring and the end of the wax liquid recycling mechanism are communicated with the air outlet end and the air inlet end of the circulating air pump respectively. According to the scheme, the yarn waxing equipment adopts the molten wax liquid jet waxing structure, the atomized and diffused molten wax liquid is coated to the surface of the yarn through siphoning by utilizing the structure that airflow and the yarn are in the same direction, uniform and all-directional waxing of the yarn is achieved, the problem that waxing is not uniform during traditional contact is solved, and the waxing effect and the forming quality are improved.

A washing apparatus such as an automatic laundry washing machine includes a wash agent dispenser drawer including an additive compartment for storing various additives such as detergent, bleach and fabric softener. One or more water inflow tubes may extend downwardly into the additive compartment and may be configured to deliver water for diluting the additives contained in the compartment. The inflow tubes are of sufficient length to reach a sub-surface portion of additive held in the compartment. Water may simultaneously be delivered to the surface of the additive. Furthermore, inflow tubes have their outlets positioned adjacent to the base(s) of one or more siphon post / cap assemblies located in the additive compartments, such that a churning effect is produced from the injection of water through the tubes and the siphoning action of the siphon post, whereby mixing is enhanced and additive buildup may be avoided and / or removed.

The invention discloses self-repairing high-durability concrete with impact wear resistance and a preparation method thereof. The concrete comprises the following components in parts by weight: 25-30parts of high-iron sulphoaluminate cement, 13-17 parts of silica fume, 4-5 parts of metakaolin, 2-3 parts of steel fibers, 16-20 parts of iron slag balls, 16-22 parts of quartz sand, 0.3-0.4 part of awater reducing agent and 5-10 parts of a self-repairing material, with the balance being water, wherein the self-repairing material comprises 6-8 parts of high-iron sulphoaluminate cement and 2-4 parts of diluted epoxy resin; and the self-repairing material further comprises 0.5-1 part of calcined tuff, 0.5-1 part of metakaolin and 0.5-1 part of carbon nanotubes. The concrete disclosed by the invention is high in strength and good in impact wear resistance, and can realize self-repairing when a wall body has a broken crack.

The invention discloses a splash-proof toilet bowl. The toilet bowl comprises a water storage box provided with a water outlet, and a bowl body connected with the water storage box. The toilet bowl comprises a toilet bowl face inclined forwards and downwards, a toilet bowl front end face arranged at the front end of the bowl body, a water accumulation pool formed by the toilet bowl face and the toilet bowl front end face, a siphon pipeline arranged inside the bowl body, a downward flushing power water channel and a toilet bowl face spraying water channel, wherein one end of the siphon pipeline is a contamination discharge inlet, the other end of the siphon pipeline is a contamination discharge outlet, the contamination discharge inlet is connected with the bottom of the water accumulation pool, the downward flushing power water channel is a hollow pipeline arranged on the toilet bowl front end face, one end of the downward flushing power water channel is communicated with the water storage box, and the other end of the downward flushing power water channel is arranged at the contamination discharge inlet; the toilet bowl face spraying water channel is communicated with the water storage tank through a water outlet and used for flushing the toilet bowl face. The toilet bowl face is a smooth hook face, and the tail end of the toilet bowl face is arranged at the front end of the bowl body. The toilet bowl can improve the self-flushing capacity, the water splashing phenomenon in the using process can be effectively avoided, and the using sanitary and cleaning effects are improved.

The invention discloses a backflushing regulator which includes a high-level tank, an inlet pipe and a fine filtration chamber which are serially connected from top to bottom. The fine filtration chamber is filled with a fine filtration material at the lower portion. The lower end of the fine filtration chamber is communicated with a water purification chamber, and the upper end is connected with a siphon device via a pipeline. A siphon breaker is arranged inside the siphon device, and the siphon device is communicated with the siphon breaker via an interface. A controller which is used to control the pipe diameter of the siphon device is arranged on the lower end of the siphon device. The controller is a cavity which is communicated with the siphon breaker, and a control plate is arranged inside the cavity. The backflushing regulator of the invention has the characteristics of easy operation and simple structure, can reduce the cost and the construction site, and can effectively adjust the backflushing time, enhance siphon effect without adding new devices. The backflushing regulator is suitable for various circumstances, and can generate good economic and social benefits.

The invention discloses a water distributing device of wastewater treatment and a pulse type water distributing method thereof, and belongs to the field of wastewater treatment devices. The water distributing device comprises an anaerobic reactor and a pulse water distributor fixed to the top of the anaerobic reactor. The body of the pulse water distributor is a horizontal tank body. The upper portion of the pulse water distributor is externally connected with a wastewater inlet pipe. A main siphon pipe is arranged in the pulse water distributor. The upper portion of the main siphon pipe is covered with an inverted-barrel-shaped cover body. The lower end of the main siphon pipe penetrates out of the tank body and is then inserted in the upper portion of a main water distributing pipe. Thecover body is fixed through a fixing plate. An annular cavity is formed between the interior of the cover body and the main siphon pipe. The annular cavity is externally connected with a vacuum breaking pipe. The vacuum breaking pipe is in an inverted L shape. The vacuum breaking pipe and the main siphon pipe form a siphon structure. The bottom end of the main water distributing pipe is directly inserted in the bottom of the anaerobic reactor and communicated with a water distributing branch pipe transversely laid at the bottom of the anaerobic reactor. The upper portion of the vacuum breakingpipe penetrates out of the tank body through a rotating shaft and is then externally connected with a rotatable adjusting handle through the rotating shaft. The aim of pulse water distributing can berealized by rotating the vacuum breaking pipe, and the frequency can be adjusted.

The invention discloses an intelligent visual capturing and pressure maintaining device for deep sea benthos sampling, which comprises a sampling capturing mechanism, a pressure maintaining mechanism, a 360-degree deep water panoramic camera for monitoring deep sea benthos and a cable for transmitting electric power, and is characterized in that the sampling capturing mechanism comprises a capturing unit and a storage unit; a water pump paddle used for providing reverse siphon force for the interior of the capturing cylinder when the capturing cylinder extends out is arranged at the connecting port of the pressure-resistant cylinder, and a pressure maintaining driving device used for opening the sealing cover when the collecting port is opened and closing the sealing cover when the collecting port is closed is arranged in the box body; the automatic control mechanism is used for controlling the in-situ pressure in the pressure maintaining cavity in the rising process after capturing is completed. The benthic organism capturing device is simple in structure, benthic organisms can be actively, flexibly and efficiently captured, the organisms are prevented from escaping, and the survival rate of the organisms is increased.

The present invention relates to a kind of variable quantity type high-pressure strong-flushing toilet bowl and a kind of variable quantity type high-pressure strong-flushing squatting closet. It is composed of toilet bowl, water cistern, valve box, upright tube and handle device. The toilet bowl adopts a snail-shaped structure, the water cistern is placed in the high position, the valve box is connected with toilet bowl and is communicated with water cistern by means of upright tube.

A mechanical pot culture automatic water supply system comprises a water supply mechanism and at least one flowerpot communicated with the water outlet end of the water supply mechanism. The water supply mechanism comprises a closed water storage barrel filled with water. Water storage grooves are formed in the flowerpots respectively. A water outlet and an assembling port located above the water outlet are formed in the bottom of the water storage barrel. A check valve used for blocking water in the water storage barrel from flowing outward is arranged at the assembling port of the water storage barrel. The water storage grooves are provided with water inlets communicated with the water outlet through pipelines. An air inlet formed in the outer portion of the water storage barrel is formed in one end of the check valve, an air outlet formed in the water storage barrel is formed in the other end of the check valve, and the air outlet is located in the position flush with the liquid level of the water storage grooves in height. According to the mechanical pot culture automatic water supply system, water can be supplemented to the water storage grooves through the siphon principle, the liquid level height of the water storage grooves is kept constant, and therefore the automatic pot culture watering function is achieved.

The invention discloses a siphon acceleration jet type siphon closestool, which comprises a closestool body and a first water tank, wherein the top of an excrement pool is provided with flushing holes, the bottom of the excrement pool is provided with a jet opening, the closestool body is also provided with a flushing water conveying pipeline connected to the flushing holes and a jet water conveying pipeline communicated to the jet opening, a first water discharging valve is arranged in the first water tank, an inlet of the jet water conveying pipeline is communicated with a water discharging opening of the first water discharging valve, the jet water conveying pipeline is also communicated with a water seal structure so that air cannot enter the jet water conveying pipeline after the first water discharging valve completes the water discharging, and the water seal surface of the water seal surface is at the same level as the water seal surface of the closestool body. The siphon acceleration jet type siphon closestool has the advantages that after the structure is adopted, the jet water conveying pipe is respectively in a full water state or a state approaching to the full water after the water discharging is completed in each time, so during the next starting for water discharging, the jet water conveying pipeline does not need to be filled again, the excrement body can accelerate the siphon formation, and in addition, the flushing capability of the excrement pool wall can be favorably improved.

The invention relates to housing rainwater drainage system accessories, in particular to a water outlet pipe for a siphon rainwater drainage system. According to the water outlet pipe for the siphon rainwater drainage system, provided by the invention, a buffer water retaining structure used for preventing a foundation from being damaged by a drained water flow is arranged at the distance of 20 mm to 50 mm from a water outlet; the water flow drained from the water outlet rushes to the buffer water retaining structure, so that the internal stress of the water flow drained from the water outlet is released; therefore, the foundation is effectively prevented from being damaged by the water flow drained from the water outlet, the service life of the drainage system is prolonged; in addition, a water outlet part is connected with a pipe body by welding, the water outlet part and the pipe body are sealed reliably, and the siphon performance of the water drainage system is improved, so that the water drainage speed of the water drainage system is higher.

The invention relates to a test paper color reaction accelerating device which is designed to increase the flow and color reaction speed of liquid on test paper. The test paper color reaction accelerating device comprises a lower support and an upper cover which are fastened together to fix test paper, an extrusion structure and a reaction color display window are sequentially arranged on the upper cover along the siphon direction of the liquid on the test paper, and the extrusion structure is used for extruding a dyeing layer of the test paper and comprises at least two spaced extrusion ribs.A groove is formed in the lower support, a plurality of supporting ribs are arranged in the groove, and the test paper is horizontally supported by the surface of the upper edge of the groove and thesupporting ribs. The dyeing layer of the test paper is correspondingly arranged in the groove, the extrusion structure extrudes the dyeing layer, so that the test paper vertically deforms, and the thickness of the dyeing layer is decreased as compared with that of an original thickness. The test paper color reaction accelerating device is applied to acquisition of detection parameters of the liquid to be detected by color reaction of the test paper.

The invention discloses ceramic pressure flushing equipment and a flushing method thereof, and the ceramic pressure flushing equipment comprises a pedestal pan cavity which comprises a lower flushing port and an upper flushing port; the lower spraying nozzle is arranged on the lower flushing opening, the lower spraying nozzle comprises a sleeve arranged on the side wall of the water seal tank of the toilet bowl cavity, a venturi tube is further installed on the inner side of the sleeve, and a negative pressure opening is formed by the outer wall of the venturi tube and the inner wall of the sleeve; the at least one water mixing area is arranged on the peripheral surface of the sleeve, and the water mixing area is communicated with water seal water of the water seal tank through a negative pressure opening; the water supplementing structure is communicated with the water mixing area, after pressure water flows into the Venturi tube, negative pressure is generated at the negative pressure opening, water in the water supplementing structure is sucked through the water mixing area and mixed with the pressure water to flush excrement, and due to the fact that the water in the water seal tank is not directly sucked and utilized, the influence of the excrement in the bedpan on a suction channel does not need to be worried about.

The invention discloses gold-silver cardboard with siphon micropores, and a preparation method and an application thereof. The preparation method comprises the steps: employing a composite transfer way to prepare gold-silver cardboard, then coating a layer of transparent water-based varnish on the surface, after drying and cooling, carrying out corona treatment of the coated surface, and thus obtaining the gold-silver cardboard with the siphon micropores. The prepared gold-silver cardboard comprises a base paper layer, an adhesive layer and a dyed aluminized layer. The upper surface of the base paper layer is coatedly provided with the adhesive layer, the adhesive layer is provide with the dyed aluminized layer, and the dyed aluminized layer is provided with a siphon micropore layer having an ink absorption property. Compared with ordinary gold-silver cardboard, the gold-silver cardboard provided by the invention has higher surface tension, and enables the ink absorption property to be greatly improved; after printing of ink, the gold-silver cardboard has higher firmness of an ink layer; even if a large area of the surface is coated with gloss oil, the gold-silver cardboard can allow the scratch resistance of the printed surface to meet standard requirements, and can be applied to pharmaceuticals, middle-high grade tobacco and wine, cosmetics and other various product packaging.

The invention discloses a flow guide type inlet structure of a drainage cooling section of a heater and a design method. A plurality of flow guide blade grids are arranged on an upstream side drainage cooling end plate of the drainage cooling section of the heater and a downstream side drainage cooling end plate of the drainage cooling section of the heater, so that flow guide blade grid channels with equal outlet through-flow areas are formed, drainage hole outlets are evenly formed in the upper portions of the flow guide blade grid channels, drainage hole inlets are formed in the lower end face of the upstream side drainage cooling end plate of the drainage cooling section of the heater and the lower end face of the downstream side drainage cooling end plate of the drainage cooling section of the heater, the arrangement of drainage holes fully utilizes differential pressure power at the inlets and the outlets, and drainage water in the high-pressure area at the inlet of the drainage cooling section can directly reach the inside of the drainage cooling section under the driving of the pressure gradient, so that the siphoning capacity of the drainage cooling section is further improved, and finally, the performance of a siphoning structure and the stability of a low-siphoning structure are improved.

The invention discloses a blood sugar test strip. An upper insulating layer, a separating layer, an enzyme reaction area and a lower insulating layer are sequentially arranged from top to bottom, the upper insulating layer, the separating layer and the lower insulating layer limit a siphon hollow cavity on the front end of the test strip, one end of the siphon hollow cavity is a blood collecting end, the other end of the siphon hollow cavity is a sample introduction end communicated with the enzyme reaction area, and the opening of the blood collecting end is larger than the opening of the sample introduction end. The blood sugar test strip has the advantages of being small in blood collecting quantity, capable of collecting blood in multiple directions and smooth in siphoning.

The invention discloses an intelligent visual classified sampling device for capturing deep sea benthos, which comprises a deep water detection part, a sampling mechanism and a cable, and is characterized in that the sampling mechanism comprises a pressure-resistant cylinder with two open ends and a sampling cavity inside, and the pressure-resistant cylinder is provided with a semicircular door body for opening and closing a sampling port; the first control mechanism is used for driving the semicircular door body to be opened and closed, limiting devices and a second control mechanism are arranged in the pressure-resistant cylinder, the limiting devices are sequentially closed after the deep-sea-bottom benthos enter the pressure-resistant cylinder, and the captured deep-sea-bottom benthos are sequentially classified and isolated through the limiting devices, and the second control mechanism is used for driving the limiting devices to be opened and closed. A water pump paddle for providing reverse siphon force into the pressure-resistant cylinder is arranged on the sealing component. The detection element is used for detecting the quantity of the captured deep-sea benthos, the operation of the three-stage telescopic oil cylinder is automatically controlled through a controller signal, and the purposes of automatic multi-time capturing, large-quantity capturing and classified capturing are achieved.

The invention provides a water pre-injection type double-seal pedestal pan. The pedestal pan comprises a water supply device, a pedestal pan main body and a mechanical sealing valve; the pedestal pan main body is provided with a trap, the trap is used for sealing the stored water, and the water sealing depth of the trap is 0 to 60 millimeters; the mechanical sealing valve is positioned below the trap and is not in direct contact with the sealed water in the trap, and the mechanical sealing valve is connected to a blow-off port of the pedestal pan main body; the water supply device is used for providing a flushing state and a water pre-injection state; in the water pre-injection state, the mechanical sealing valve is closed, and the pre-injected water is stored; in the flushing state, the mechanical sealing valve is opened, and sewage is drained; and in the water pre-injection state, the water sealing depth of the water pre-injection type double-seal pedestal pan is more than 55 millimeters. The double-seal pedestal pan is simple in manufacture and reliable in performance, and has optimal sealing performance, pollution discharge performance, water-saving performance and using performance.

The invention discloses a blood sugar test strip. An upper insulating layer, a separating layer, an enzyme reaction area and a lower insulating layer are sequentially arranged from top to bottom, the upper insulating layer, the separating layer and the lower insulating layer limit a siphon hollow cavity on the front end of the test strip, one end of the siphon hollow cavity is a blood collecting end, the other end of the siphon hollow cavity is a sample introduction end communicated with the enzyme reaction area, and the opening of the blood collecting end is larger than the opening of the sample introduction end. The blood sugar test strip has the advantages of being small in blood collecting quantity, capable of collecting blood in multiple directions and smooth in siphoning.

The invention discloses an aluminum alloy floor drain of a ship, comprising a grate, a floor drain main body, a vertical column and an inverted U-shaped pipe. The grate is arranged at a drain inlet ofthe floor drain main body, and a vertical column is fixedly connected with the bottom of the grate. The inverted U-shaped pipe is fixedly installed inside the floor drain main body; The upper edge ofthe floor drain main body extends inwardly and is provided with a circular boss; The top surface of the grate is flat with the top surface of the floor drain main body; The radius of the grate is less than or equal to the radius of the drainage inlet. The invention has great difference from the floor drain of the prior art. the grate and the drainage inlet of the floor drain main body are mutually spaced, and the top surface of the grate is conical, so that the hair or fine garbage can enter into the floor drain main body from the gap between the grate and the floor drain main body without blocking the grate. The whole structure design is simple, the function is complete, it can prevent insects, odor and blockage, the practicability is strong, the market prospect is big.