106results about How to "Has a blocking effect" patented technology

The invention provides a main control and roadway retaining method for anchor injection and top-cutting in a deep mining roadway, which comprises the following steps: step 1, determining the technicalparameters required for realizing the top-cut and roadway retaining in the deep mining roadway; step 2, carrying out the grouting anchor cable support construction during the tunnelling period of thedeep mining roadway; step 3, carrying out the advanced overcut and perforating construction at the roadway side during the mining of the working face; step 4, carrying out grouting anchor cable support construction during the mining of the working face; step 5, carrying out monomer strut support construction at the roadway side during the mining of the working surface; step 6, carrying out auxiliary support construction. The method has the advantages that the supporting requirements of the deep gob-side entry can be satisfied when carrying out non-pillar mining construction in the deep mine.

The present invention provides one kind of double layer cartilage tissue engineering rack comprising one compact layer and one loose layer communicated each other. The rack has excellent biological performance, sufficient cell tissue holding space, certain blocking effect and capacity to allow nutritious matters to pass through freely. It is used in repairing human body's cartilage tissue and constructing extracorporeal cartilage tissue. It is made through preparing solution of different concentrations with acid extracted collagen, freeze drying to obtain collagen sponge, flattening, injecting collagen solution of different concentration, and drying for the second time to obtain the double layer cartilage tissue engineering rack. The rack has the pore size controlled through controlling the concentration of the solution.

The invention relates to a spiral extruding filter, which mainly comprises a motor and a filter cartridge. A spiral shaft runs through the inside of the filter cartridge and connected with an output shaft of the motor; the filter cartridge is provided with a discharge opening and a feeding opening; the spiral shaft is provided with at least one intermittent spiral shaft vane; the filter cartridge at the intermittent part of the spiral shaft vane is fixedly connected with a cylinder; and the cylinder is provided with a baffle plate which is arranged between the intermittent spiral shaft vanes. The spiral extruding filter has the advantages of making materials in the filter cartridge bear higher pressure, improving the filtering speed and improving the production efficiency. Compared with the common spiral shaft, the spiral vane has one or more intermittent parts; the spiral shaft has no push force on solid phase materials at the intermittent parts, so the solid phase material can be accumulated in the filter cartridge, and the materials can continuously move forward by only using subsequent materials to apply larger push force on the materials. The larger push force can accelerate the dehydration of materials.

The invention relates to a low-toxicity or nontoxic multi-functional drilling fluid finishing agent used for the drilling operation of an oil-gas field. The invention has no pollution to the environment, is nontoxic and has the functions of preventing collapse, blocking, lowering the water loss, protecting the wall of a well, protecting an oil-gas layer, generating no fluorescence and the like. The invention has the following technical scheme of: firstly, putting water into a reaction tank, adding a dispersant MV-CMC and a glue protection agent JT888 slowly in circulation, adding an emulsifying agent OP-10 once after dissolving, circulating for 10 minutes, adding liquid paraffin slowly and then emulsifying for 30 minutes; then, adding a defoaming agent YHP-008 and then circulating for 5-10 minutes continuously; and finally, adding 36% of formaldehyde as a preservative and then circulating for 5 minutes so as to obtain a product of the low-toxicity or nontoxic multi-functional drillingfluid finishing agent. The finishing agent is used for water-base drilling fluid, especially polymer drilling fluid, can effectively improve the quality of a mud cake of the water-base drilling fluid, lowers the water loss, has the functions of clamping prevention, lubrication, collapse prevention, blockage and the like, has no pollution to the environment and can be widely used in the drilling operation.

The invention belongs to the field of molecular biology, and relates to a hybridoma cell strain capable of secreting a CPIV3 antibody and an ELISA kit. A caprine parainfluenza virus 3 CPIV3 immunogen used in the invention is a CPIV3 JS2013 viral strain isolated clinically, and a hybridoma cell strain 2E6 is screened from an established hybridoma cell bank capable of secreting the CPIV3 antibody. The monoclonal antibody secreted by the hybridoma cell strain has the blocking effect, and is applied to the CPIV3 blocking ELISA kit. The CPIV3 blocking ELISA kit can specifically detect the antibody generated after the CPIV3 infection or caprine immunization. 212 caprine clinical serum samples are colleted, and the CPIV3 antibody in the serum is tested by the established blocking ELISA method and a neutralization test. Through the comparison between the result of the blocking ELISA method and the result of the neutralization test, the coincidence rate is 98.8%.

The invention discloses a light-emitting diode epitaxial wafer and a growth method thereof, and belongs to the technical field of semiconductors. The light-emitting diode epitaxial wafer comprises a sapphire substrate, a low-temperature buffer layer, a high-temperature buffer layer, an N-type layer, a defect blocking layer, an active layer, an electron blocking layer and a P-type layer, wherein the defect blocking layer comprises a first sub-layer and a second sub-layer; the first sub-layer comprises first AlGaN layers and GaN layers which are alternately stacked; the second sub-layer comprises second AlGaN layers and third AlGaN layers which are alternately stacked; the Al content in the first AlGaN layers gradually changes along the growth direction of the light-emitting diode epitaxial wafer; and the Al content in the second AlGaN layers and the Al content in the third AlGaN layers remain unchanged, are different and are smaller than that in the first AlGaN layers. The light-emitting diode epitaxial wafer has a blocking effect on extension of defects.

The present invention provides the construction and control method of optical switch matrix with odd ports. The (N+1)x(N+1) optical switch matrix is constituted with N+1 1xN optical switches and N+1 N:1 couplers, with N is even number not greater than 8. The N output ports of each 1xN optical switch are connected to the input ports of N N:1 couplers separately, with one of the N:1 couplers being not connected. The N input ports of each N:1 coupler are connected to the output ports of the N 1xN optical switches separately, and the K-th optical switch and the K-th coupler are not connected, with K being a number from 1 to N+1. By means of controlling each of the 1xN optical switches, the input light signal may be output to any one of the N output ports, and input light signals of different optical switches are output to the input ports of different couplers. The couplers are realized with wave synthesizer and beam splitter.

The invention discloses a high-performance water-based drilling fluid. The high-performance water-based drilling fluid is prepared from the following components in parts by weight: 100 parts of freshwater, 2 to 6 parts of bentonite, 0.2 to 0.6 part of coating agent, 0 to 5 parts of fluid loss agents, 1 to 6 parts of lubricating fluid loss agents, 0 to 4 parts of lubricant, 2 to 6 parts of anti-collapse blocking agent, 6 to 8 parts of shale inhibitor, 0.2 to 0.4 part of pH adjusting agent, and 60 parts of weighting agents; the lubricating fluid loss agents are boric acid ester modified graphene oxide, a high-performance water-based drilling fluid system provided by the invention has the characteristics of strong inhibition, strong plugging and the like, and at the same time has the advantages of low lubrication coefficient and small downhole friction resistance, thus being suitable for construction operations of directional wells and large displacement wells.

An exhaust silencer for automobiles with output volume of 2.0L comprises a main cavity, an air inlet pipe, an exhaust pipe and an intermediate pipe. The main cavity is composed of cavity walls, a front end cover and a rear end cover by encircling, a front partition plate and a rear partition plate are arranged in the main cavity to partition the main cavity into a front cavity, a middle cavity and a rear cavity, the air inlet pipe used for connection with an automobile exhaust pipe penetrates through the front cavity to be directly inserted into the middle cavity, a flange plate is connected to an air inlet end of the air inlet pipe, an air outlet end of the air inlet pipe is provided with a gradually-flared port, and a portion, positioned in the front cavity, of the air inlet pipe is provided with air holes. The front end and the rear end of the intermediate pipe extend into the front cavity and the rear cavity respectively. An opening of one end, extending into the rear cavity, of the intermediate pipe is closed. The pipe wall of the portion, extending into the middle cavity, of the intermediate pipe is provided with air holes. One end of the exhaust pipe extends into the front cavity while the other end of the exhaust pipe sequentially penetrates through the rear cavity and the rear end cover to be communicated with the outside. One end, extending into the front cavity, of the exhaust pipe is provided with a gradually-shrunk port. An exhaust tail section in a gradually expanded structure is arranged at the pipe tail positioned outside. The exhaust silencer is capable of effectively weakening exhaust noises and is reasonable in design and promising in application prospect.

The invention provides an anti-galloping damping device for a transmission line. The device comprises a vacuum pipe, a pendant and a cross force transfer block, wherein movable magnetic steel is placed between upper magnetic steel and lower magnetic steel which are fixed in the inner cavity of the vacuum pipe made of a non-magnetic material; the upper magnetic pole and the lower magnetic pole of the movable magnetic steel are the same as the lower magnetic pole of the upper magnetic steel and the upper magnetic pole of the lower magnetic steel; the structure of the pendant is characterized inthat an arc riser is fixedly connected on an open-loop clamp; the structure of the cross force transfer block is characterized in that the lower end of the riser is fixedly connected with a transverse plate, a left baffle and a right baffle are fixedly connected on the transverse plate, and a horizontal shaft is fixed on the upper part of the riser; and the vacuum pipe is clamped in the open-loopclamp of the pendant, the pendant is hung on one end of the horizontal shaft through a hanging hole, and the other end of the horizontal shaft is used for fixing a lead wire or a conductor spacer. The device can prevent the lead wire from swinging left and right and moving up and down, and has the characteristics of simple structure and convenient use.

The invention relates to a building block for forming a wall structure. A plurality of similar building blocks are alternately superposed continuously in the wall. The building block is a longitudinal section material and comprises a top surface, a bottom surface and two end surfaces; the cross section of the building block is integrally in a downward horn mouth shape; the middle part of the top surface has a ridge, and two sides of the top surface are low, thereby forming a left supporting slope and a right supporting slope; the building block has the shape and the size, thus when three similar building blocks are superposed from top to bottom, the ridge of the undermost building block is higher than the base part of the topmost building block; the lower part of each supporting slope is provided with a shoulder table which comprises an upper table surface, a table bottom surface and a transverse lateral surface; the upper table surface, the upper slope and the middle ridge form the top surface; and when the building block is superposed with the upper similar building blocks to form the wall, protrusions formed by slopes at two sides are bonded with horn notches on the bottom surfaces of the upper similar building blocks. The invention can prevent water leakage of any surface of the formed wall, simultaneously enables the wall to have stable shock resistance, and is suitable for various buildings and various construction methods.

The invention discloses a rock breaking device for a petroleum drilling rock stratum. The device comprises a bearing frame and mounting strips, wherein limiting grooves are formed in the upper surfaceof the bearing frame, sliding grooves are formed in the edges of the inner walls of the limiting grooves, sliding blocks are mounted in the sliding grooves, hydraulic cylinders are mounted at the topend of the bearing frame, rock breaking drill bits are mounted below driving motors, connecting heads are welded to the top ends of the rock breaking drill bits, the mounting strips are mounted on the left side and the right side of the outer wall of the bearing frame, the inner walls of the mounting strips are provided with protective plates and fixing plates, the right side of the protective plates are provided with the fixing plates, the edges of the inner walls of the fixing plates are provided with fixing grooves, the tail ends of the protective plates are welded with hoop plates, and the inner walls of the protective plates are provided with backflow mechanisms. According to the rock breaking device, the rock breaking drill bits are convenient to be replaced for a user, so that theusing work efficiency of the drill bits is excellent, and the surrounding workers is protected in the rock breaking operation process.

The invention discloses a safety socket. The safety socket comprises a socket shell, a first sliding block stopper, a second sliding block stopper and a button part, wherein a first limiting structure is arranged between the button part and the first sliding block stopper, and a second limiting structure is arranged between the button part and the second sliding block stopper; movement of the button part to the socket shell is stopped through the first limiting structure and / or the second limiting structure so as to limit further insertion of a plug into the socket shell; or under a condition of recession of the first sliding block stopper and the second sliding block stopper due to an extrusion effect, stopping on the button part by the first limiting structure and the second limiting structure is removed. The safety socket provided by the invention has multiple protection effects, so that conditions of insertion of an unmatched plug into the socket and half insertion of the plug can be avoided; and meanwhile, the safety socket has the effects of electric shock prevention caused by mistake insertion, and water splashing prevention, and is reasonable in design, convenient to use, safe and higher in reliability, and capable of realizing safety in use.

The invention relates to a processing and storing method of rhizoma gastrodiae decoction pieces, and belongs to the fields of processing and storage of traditional Chinese medicines. The processing and storing method comprises the following steps: (1) weighing raw materials, washing the raw materials to be clean, and carrying out draining; (2) preparing extracting solutions of fructus schisandrae,Chinese wolfberry fruits, radix astragali, radix codonopsis and poria cocos, and carrying out filtering for later use; (3) carrying out pre-freezing; (4) carrying out slicing; (5) spraying the extracting solutions of fructus schisandrae, Chinese wolfberry fruits, radix astragali, radix codonopsis and poria cocos; (6) spraying a protection agent; (7) carrying out microwave vacuum freeze drying; (8) carrying out packaging; and (9) carrying out storage. The processing and storing method of the rhizoma gastrodiae decoction pieces is simple, and pollution-free and environmentally friendly, energyconsumption is saved, for the rhizoma gastrodiae decoction pieces processed through the method, sulphur fumigation is not adopted in the whole course of processing, thus the defects of sulphur fumigation adopted in the prior art are overcome, and the prepared rhizoma gastrodiae decoction pieces have stronger efficacies and better health effects.

The present invention provides a highly reliable double-sided heterogeneous composite electrode chip capacitor. The chip capacitor comprises a capacitor ceramic substrate, a surface electrode and a bottom electrode. The surface electrode and the bottom electrode are respectively disposed on two surfaces of the capacitor ceramic substrate. The surface electrode is a silver layer, and the bottom electrode is formed by laminating a titanium tungsten layer, a copper layer and a gold layer on the capacitor ceramic substrate from the inside to the outside. The invention also relates to a method forpreparing the high reliability double-sided heterogeneous composite electrode chip capacitor. The chip capacitor is suitable for requirements of the reflow soldering process, the surface is suitable for routing bonding, and the chip capacitor has the advantages of good bonding effects, high temperature resistance, high reliability and high stability.

The invention discloses a water inlet device for a cleaning machine. The water inlet device comprises a water inflow support, and the water inflow support is provided with a water inlet pipe and a water overflow pipe; a main cavity is formed in the water inflow support, and a first opening is formed in one side of the main cavity; a vent hole is formed in the upper side wall of the main cavity, the water inflow support is further provided with a condenser pipe with an air inlet and an air outlet, and the air inlet of the condenser pipe is connected with the vent hole; multiple partition boards are arranged in the condenser pipe and divide an inner cavity of the condenser pipe into multiple spaces, and the spaces are communicated with one another to form a steam condensation channel; the steam condensation channel is communicated with the air inlet and the air outlet. The steam circulation path is prolonged, and multiple barriers are arranged on a steam circulation pipeline, so steam frequently collides with all wall surfaces in the circulation process and the water inlet device achieves the natural condensation effect. The water inlet device can effectively condensate steam, can also keep the steam circulation pipeline hygienic and smooth, and makes the cleaning machine operate normally.

The invention discloses a food formula capable of reducing blood lipid and reducing weight. The food formula comprises the following components by weight: 0.2-3g of L-arabinose, 0.2-1g of inulin, 0.2-1.5g of isomaltooligosacharide, 0.5-1.5g of fructo-oligosaccharide, 0.1-1g of fruit and vegetable powder, 500-5000 millions of lactobacillus plantarum, and 500-5000 millions of Lactobacillus rhamnosus. Through prevention of absorption of fat and energy, assisting of digestion and decomposition of fat, and strengthening the function of the intestine and the stomach, the purpose of reducing weight is realized.

The invention relates to cement capable of slowing setting by additives. The cement comprises at least one first microcapsule and at least one second microcapsule; the first microcapsule has a hollowstructure, the interior of the first microcapsule is provided with a first additive, and the first microcapsule is put in the cement; the interior of the first microcapsule is provided with at least one second microcapsule, and the interior of the second microcapsule is filled by a second additive; and the first microcapsule and the second microcapsule can be slightly exploded by energization of ahigh-frequency coil, after the second microcapsule is slightly exploded, the first additive and the second additive are mixed, and after the first microcapsule is slightly exploded, the mixed additive and the cement is mixed. According to the concrete disclosed by the invention, the high-frequency coil generates a magnetic field after being energized, the first microcapsule and the second microcapsule can be prepared by mixing high-molecular organic matter and metal particles, when the metal particles generate an eddy flow in the magnetic field, the second microcapsule and the first microcapsule are slightly exploded in sequence, and after the mixed material and the cement are mixed, setting time of the cement is delayed; and the concrete is convenient to use.

The invention discloses a slope protecting structure. An existing slope protecting structure has the problem that when the slope surface is steep and long and water flow is rapid, the water flow speedis increased gradually on the slope surface, and the slope surface on the lower end is scoured severely. According to the technical scheme, the slope protecting structure is characterized by comprising a plurality of vegetation planting areas divided by a lattice beam, water filtering parts and water drainage channels, wherein the upper surface of each vegetation planting area is lower than the upper surface of the lattice beam, one water filtering part is arranged on the portion, close to the lattice beam, of the lower end of each vegetation planting area, and the water drainage channels communicate with the water filtering parts. The slope protecting structure has the beneficial effects of weakening the flow speed of water flow on the slope surface, and thus alleviating scouring to theslope surface.

The invention discloses a circulating sprinkling irrigation apparatus with a rainwater collecting function for the greening of a light roof, which relates to the technical field of light roof greening. The circulating sprinkling irrigation apparatus specifically comprises a first collecting box and a supporting frame, wherein a second collecting box is arranged at the right side of the first collecting box; a slide block is arranged in a slide chute; the supporting frame is fixedly welded on the upper ends of the first collecting box and the second collecting box respectively; a driving mechanism is fixedly installed on the side wall of the supporting frame; fixing blocks are respectively fixedly welded inside the first collecting box and the second collecting box; water pumps are installed at the inner tail ends of the first collecting box and the second collecting box; and the output ends of the water pipes are connected with water collecting pipes in an injection molding manner. Thecirculating sprinkling irrigation apparatus with the rainwater collecting function for the greening of the light roof has a filtering effect for the rainwater entering the water pipes because the surface of a water inlet pipe is hollowed out, so that the situation that larger impurities in the rainwater block the inside of the connecting pipe can be avoided, and the conveying efficiency of the connecting pipe is prevented from being influenced.

The invention discloses a building smashing device. The building smashing device comprises a smashing chamber, a sieve plate device, sieve holes, a driving shaft and a smashing device body; the sieve plate device is fixed to the inner wall of the smashing chamber and located in the center; the smashing device body is fixed to the surface of the driving shaft; pressing blocks are slidably connected to the tops of sieve plate bodies; and arc-shaped ejector rods are rotationally connected into the sieve plate bodies, the top ends of the arc-shaped ejector rods are hinged to the bottom ends of the pressing blocks, and flapping devices are arranged in the sieve plate bodies and located at the positions of the sieve holes. According to the building smashing device, the purposes of preventing blockage and removing dust are achieved, wet dust adhesion is reduced, the blockage condition is avoided, the smashing efficiency is high, meanwhile, dust can be collected, dust diffusion is reduced, the dust suction amount of workers is reduced, human health is facilitated, air pollution is reduced, and the use performance is improved.

The invention discloses a cadmium telluride thin film solar cell module and a preparation method thereof. The cadmium telluride thin film solar cell module comprises a substrate glass layer, a TCO thin film layer, a CdS thin film layer, a CdTe thin film layer, a diffusion barrier layer, a Mo electrode layer, and a backplane glass layer which are arranged in order from bottom to top. The diffusionbarrier layer is a TiN layer. A TiN thin film is used as a back electrode buffer layer instead of Cu. Since the work function of the TiN is 4.7eV and the work function can be deepened by adjusting theratio of Ti to N, the Schottky barrier of the metal back electrode and the cadmium telluride thin film can be reduced, and the contact between the metal back electrode and the cadmium telluride thinfilm can be optimized. In addition, the TiN layer has good stability and has a stopping effect on Na diffusion in the glass, so that the diffusion of the alkali metal Na in the cadmium telluride thinfilm cell is controllable, and is different from the diffusion of doped copper which may diffuse to an interface between the cadmium telluride and the cadmium sulfide in a late stage, destroys a p-n junction characteristics, and greatly reduces efficiency, thereby prolonging a service life.

The invention discloses a building material stacking frame. The building material stacking frame comprises a first object placing plate and a second object placing plate, a partition plate is fixedlyinstalled on the outer surface of the upper end of the first object placing plate, and a fixed barrel seat is fixedly installed on one side, close to the partition plate, of the outer surface of theupper end of the first object placing plate; a second supporting rod is fixedly installed on the outer surface of one side of the first object placing plate, and a first supporting rod is fixedly installed on the outer surface of the other side of the first object placing plate; and damping foot pads are fixedly installed on the outer surface of the lower end of the second supporting rod and the outer surface of the lower end of the first supporting rod correspondingly, and the second object placing plate is fixedly installed above the first material placing plate, and a pipe fixing seat is fixedly installed on the outer surface of the upper end of the second object placing plate. According to the building material stacking frame, a protection cover plate, the pipe fixing seat and a lifting pipe sleeve are arranged, the stacking frame is enabled to be provided with a waterproof structure, the height of the stacking frame can be adjusted, so that a tubular building material can be placed more firmly, and a better application prospect is brought.

The invention provides a multi-chamber rotational-flow stepped high-efficiency heat exchanging system of a rotary pyrolyzing furnace. The multi-chamber rotational-flow stepped high-efficiency heat exchanging system comprises a heating chamber, wherein the heating chamber is divided by a separation plate into two or more heating chambers, the bottoms of two adjacent heating chambers are provided with a hot gas outlet communicating the two heating chambers, and a plurality of fins arranged in an annular shape are arranged in the heating chamber. By adopting the multi-chamber rotational-flow stepped high-efficiency heat exchanging system, the heating process is processed in a sectional manner by virtue of various chambers on the basis of external heating way, so that the remaining time and route of the heated gas in the chamber can be manually increased, the heated gas performs sufficiently heat exchange with a tube wall wraping biomass, the stable and sufficient heating is realized, and the utilization rate of energy is increased.

The invention discloses a slope protecting structure. An existing slope protecting structure has the problem that when the slope surface is steep and long and water flow is rapid, the water flow speedis increased gradually on the slope surface, and the slope surface on the lower end is scoured severely. According to the technical scheme, the slope protecting structure is characterized by comprising a plurality of vegetation planting areas divided by a lattice beam, water filtering parts and water drainage channels, wherein the upper surface of each vegetation planting area is lower than the upper surface of the lattice beam, one water filtering part is arranged on the portion, close to the lattice beam, of the lower end of each vegetation planting area, and the water drainage channels communicate with the water filtering parts. The slope protecting structure has the beneficial effects of weakening the flow speed of water flow on the slope surface, and thus alleviating scouring to theslope surface.

The invention relates to a fine coal separation device which comprises a rack and an arc-shaped screen arranged on the rack. A collection pool for collecting fine coal and water is arranged under thearc-shaped screen. A cleaning device for supplying water is arranged above the arc-shaped screen. The water outlet end of the cleaning device communicates with a buffer box. The side, away from the cleaning device, of the buffer box is arranged above the top of the arc-shaped screen and is spaced from the arc-shaped screen. The device has the aim of improving the separation effect of the arc-shaped screen.

The invention discloses a hydraulic cylinder with a gap dynamic sealing piston. The hydraulic cylinder comprises a cylinder body, a piston, a piston rod, a guide sleeve and a cylinder cover; a grooveset which is arranged along the circumferential direction of the piston is arranged on the outer circumferential surface of the piston, the groove set comprises a plurality of concave grooves which are uniformly distributed in the circumferential direction, the inner concave groove comprises an oil groove and a V-shaped conical surface, the oil groove is located in the middle of the inner concavegroove, the length trend of the oil groove is arranged in the circumferential direction of the piston, the V-shaped conical surface is symmetrically arranged on the front conical surface and the rearconical surface in a front-back symmetry manner relative to the oil groove, the top ends of the front conical surface and the rear conical surface are connected with the outer circumferential surfaceof the piston respectively , the bottom ends of the front conical surface and the rear conical surface are connected with the top ends of the ledges of the oil groove respectively, the top end of thefront conical surface or the top end of the rear conical surface is not connected with the front end surface of the piston, and the top end of the rear conical surface or the top end of the front conical surface is not connected with the rear end surface of the piston. According to the hydraulic cylinder with the gap dynamic sealing piston, liquid lubrication between the piston and the cylinder body can be ensured, and the phenomena of piston jammed and piston scraping are avoided on the premise of effectively reducing internal leakage of the piston.

The invention relates to the field of spinning equipment, and specifically discloses a fabric disinfecting device. The device comprises a rack, an air box, a disinfecting table rotatably connected tothe rack, and a motor, wherein a piston is arranged in the air box; a crank is fixedly connected to an output shaft of the motor; the crank and the piston form a crank sliding block mechanism; an airpipe is fixed to the bottom of the piston, and the air pipe comprises an inlet section, a throat channel and an expanding section which are sequentially arranged from top to bottom; a sleeve which sleeves the air pipe is fixedly arranged in the air box; the air pipe is provided with an air inlet which is communicated with the inlet section; an air guide hole which is communicated with the air inlet is formed in the sleeve; a liquid groove is formed in the piston and is communicated with the throat channel through a guide pipe; a valve is arranged at the end part, in the throat channel, of theguide pipe; a pressure detecting device for controlling the valve to open and close is arranged at the throat part; a spiral groove is formed in the periphery of the lower part of the air pipe; a driving ring which is fixed to the disinfecting platform is arranged above the disinfecting platform; a spiral convex edge which fits the spiral groove is arranged on the driving ring. The device is capable of timely dewatering a fabric after disinfecting.