44results about How to "Strong sealing" patented technology

The invention relates to a surface acoustic wave filter encapsulation structure and a manufacturing method, and belongs to the technical field of semiconductor encapsulation. The structure comprises a substrate (1). The back of the substrate (1) is provided with a groove (8), and a filter chip (3) is mounted uprightly or inversely in the groove (8). The front of the substrate (1) is provided with a layer of encapsulation material (6). A protection cavity is formed between the encapsulation material (6) and the groove (8). The encapsulation material (6) does not contact a chip function area (3a) of the filter chip (3). According to the surface acoustic wave filter encapsulation structure and the manufacturing method of the invention, the protection cavity is sealed by the encapsulation material, and therefore, encapsulation adhesive is effectively prevented from overflowing to the function area on the surface of the filter chip, and the problem that traditional metal cover protection function causes function failure is solved.

The invention relates to a self-sealing deep sea pressurize sampling control valve in the field of ocean technology apparatus. The apparatus comprises: a spring seat, a pre-compressed spring, an O-type sealed coil, a valve core rod, a valve body, a piston return spring, a piston, a spacing nut, a driving spring, a driving block, a cylinder and an end cover, wherein the valve core rod arranges an O-type sealed coil; the valve core rod, the pre-compressed spring and the spring seat are in turn positioned inside the valve body; the piston return spring is positioned on the outside of the piston; the piston is covered on the valve core rod; the spacing nut is positioned on the top of the valve core rod; one end of the cylinder is covered on the piston and the piston return spring and is connected with the valve body, while the other end arranges the driving spring, the driving block and the end cover.

The invention relates to an oil feeder, in particular to a monitorable signaling type quantitative electromagnetic oil feeder which solves problems of time and labor wastage, poor reliability, cumbersome size, easiness in damage and the like of an existing electromagnetic oil feeder. The monitorable signaling type quantitative electromagnetic oil feeder comprises a valve block, a main piston, an upper plunger cavity and a lower plunger cavity; an oil inlet, an upper oil outlet and a lower oil outlet are arranged on the valve block; a two-position three-way electromagnetic valve is arranged on the valve block, a vertical output oil duct, an upper transverse control oil duct and a lower transverse control oil duct are arranged inside the valve block, the upper transverse control oil duct is communicated with the upper plunger cavity, and the lower transverse control oil duct is communicated with the vertical output oil duct and the lower plunger cavity; and a non-permeability joint and a Hall proximity switch are assembled on the top of the valve block, the main piston comprises a piston body and a non-permeability plunger rod, and a return spring is sleeved on the non-permeability plunger rod. The monitorable signaling type quantitative electromagnetic oil feeder is reasonable in structure and high in reliability, a lubrication state of a friction pair is precisely monitored, the service life of the oil feeder and the service life of the friction pair are prolonged, the lubricating oil consumption and the maintenance cost are saved, and the monitorable signaling type quantitative electromagnetic oil feeder is wide in application range.

The invention discloses a bearing convenient to lubricate, and solves the problems that lubricating oil cannot be dropwise added at regular times, and cannot be automatically dropwise added on a rolling column, friction coefficients are high, and noises are generated. The bearing convenient to lubricate comprises an outer ring, wherein an oil injection opening is formed in the surface of the outerring; a hinge is arranged on one side of the oil injection opening; a protective cover is mounted on the side, which corresponds to the oil injection opening, of the hinge; a fixing buckle is arranged on the side, which is away from the hinge, of the protective cover; a third sealing ring is embedded in the inner side of the protective cover; an oil storage groove is formed in the position, whichcorresponds to the oil injection opening, of the inside of the outer ring; an oil outlet is formed in one side of the oil storage groove; a drainage tube is arranged on the side, which is away from the oil storage groove, of the oil outlet; a throttling valve is mounted in the drainage tube; a ball seat is arranged at the tail end of the drainage tube; a steel ball is mounted in the middle of theball seat; an inner ring is arranged on the inner side of the outer ring; rollers are mounted between the inner ring and the outer ring; limiting pieces are arranged among the rollers; the sides, which are away from the inner ring, of the rollers are clamped in a groove; and space between the second sealing ring and the inner ring is filled with sound-absorbing cotton.

The invention relates to a piston for realizing sealing by expanding a sealing piece with hydraulic force. The piston with a sealing piece comprises a piston body and a sealing piece, wherein the sealing piece is annular; the section of the sealing piece is V-shaped; the opening of the V-shaped section faces inwards; the outer circumferential surface of the piston body is provided with an annular groove; the groove bottom surface of the annular groove projects outwards; the sealing piece is arranged in the annular groove; the inner surface of the sealing piece is jointed with the groove bottom surface of the annular groove; the upper end face or the lower end face of the piston body is provided with a first oil hole; the middle part of the groove bottom surface of the annular groove is provided with at least one second oil hole; and each second oil hole is communicated with the first oil hole. The piston has an automatic pressure compensation sealing function, high-pressure oil can be prevented from flowing into the upper part of a piston cylinder from a gap between the piston cylinder and the piston, and hydraulic energy is saved simultaneously.

The invention discloses a strong airtightness pipeline double-way plugging device. The strong airtightness pipeline double-way plugging device comprises a rubber plugging piece and an extrusion acting force pressing plate, the rubber plugging piece comprises an inner rubber plugging piece and an outer rubber plugging piece, an opening is arranged on each of the inner rubber plugging piece and the outer rubber plugging piece, the opening of the outer rubber plugging piece is formed by overlapping an inner connecting block and an outer connecting block, and the thickness of the inner connecting block and the outer connecting block is half the thickness of the outer rubber plugging piece. The strong airtightness pipeline double-way plugging device has the advantages that when the outer rubber plugging piece deforms, no crack is produced in the opening, and the airtightness is strong; two clamping grooves are arranged on the extrusion acting force pressing plate and are respectively connected with the inner rubber plugging piece and the outer rubber plugging piece, so that the connection between the extrusion acting force pressing plate and the rubber plugging piece is higher in airtightness; the rubber plugging piece and the extrusion acting force pressing plate are fixed through a bolt in advance, no field installation is needed, and the extrusion acting force pressing plate fixed by the bolt can also be opened, and sleeves a cable together with the rubber plugging piece, so as to be convenient in use.

The invention provides an organ zippered bag manufacturing method and a manufactured organ zippered bag. The method comprises the following steps: a left organ surface, a right organ surface, sealing stiffeners, a concave-convex fitting zipper and a second flat plastic membrane are sequentially placed on a first flat plastic membrane, and are sequentially subjected to heat-seal; the whole manufacturing process is simple and smooth, and the large-scale production of the organ zippered bags with sealing stiffeners by the manufacturer can be facilitated. The organ zipper bag with the stiffeners has strong sealing property and large available space; the method provided by the invention practically solves the problem that no method is provided for manufacturing the organ zippered bag in the prior art, so that the organ zippered bag with the sealing stiffeners can be produced in large scale, generalized and popularized.

The invention discloses a semiconductor refrigeration heat exchanger, which comprises a semiconductor chilling plate and a heat exchange body on which a fluid circulation channel is arranged, wherein, the semiconductor chilling plate is stored in the heat exchange body; both end faces of the fluid circulation channel and the semiconductor chilling plate form a cold circulation channel and a warm circulation channel which are respectively independent. The semiconductor refrigeration heat exchanger has a reasonable structure, strong leak tightness and high heat exchange efficiency, utilizes two fluid circulation channels to independently transmit heat quantity and cold quantity which are generated by the semiconductor chilling plate, and uses pipes to exchange heat, thereby being favorable for saving the space and improving the flexibility and the compactness of the overall layout of products.

The invention discloses a novel micro-channel reactor and relates to the technical field of fluid mixing and reaction equipment. The novel micro-channel reactor comprises a feeding opening valve, an input mixing chamber, a mixing reaction channel, an output mixing chamber and a discharging opening valve; the inlet end of the feeding opening valve is provided with a first feeding opening and a second feeding opening which are communicated mutually; the outlet end of the feeding opening valve is connected with one end of the mixing reaction channel through the input mixing chamber; the other endof the mixing reaction chamber is communicated with the discharging opening valve through the input mixing chamber. The feeding opening valve, the input mixing chamber, the mixing reaction channel, the output mixing chamber and the discharging opening valve are integrated combination, the mixing reaction channel is integrally manufactured, the input mixing chamber and the mixing reaction chamberare manufactured into a whole body, the output mixing chamber and the mixing reaction channel are manufactured into a whole body, an integrated structure is adopted, and the channel does not need a sealing piece to serve as sealing protection, so the sealing property is high, leakage is not liable to occur, and normal work of the micro-channel reactor is guaranteed.

The invention discloses a magnetic extruding type automatic lifting flood-proofing baffle system, and further discloses a building waterproofing method. the magnetic extruding type automatic lifting flood-proofing baffle system comprises a motor (1), a sliding channel (3), a rope chain, a flood-proofing baffle (4) and a coiling drum assembly (2), and further comprises a control center, a series-connection electromagnetic strip (9), a sliding channel electromagnetic strip (8), a baffle electromagnetic strip (7) and a water level detecting device; the control center is connected with the series-connection electromagnetic strip (9), the sliding channel electromagnetic strip (8), the baffle electromagnetic strip (7), the motor (1) and the water level detecting device; the baffle electromagnetic strip (7) is arranged on the outer side of the flood-proofing baffle (4), the series-connection electromagnetic strip (9) is arranged on the top face of the flood-proofing baffle (4), and the series-connection electromagnetic strip (9) and the baffle electromagnetic strip (7) are the same in magnetic pole; and the sliding channel electromagnetic strip (8) is vertically arranged on the outer sideof the sliding channel (3). According to the magnetic extruding type automatic lifting flood-proofing baffle system, the baffle can be automatically controlled to fall to realize waterproofing without slotting, and sealing is good.

The present invention relates to common part for air conditioner and is especially one device for preventing condensated liquid from being exhausted. The present invention solves the technological problem of providing one stop valve combination with integrated valve core and thus high air tightness and long service life for air conditioner. The stop valve combination consists of high pressure stop valve and low pressure stop valve, and each of the high pressure stop valve and low pressure stop valve includes valve body, integral valve core with front and back sealing planes, valve seat, sealing cap and adaptor. The present invention is suitable for use in split air conditioner, especially one with 5 P and below power, central air conditioner and automobile air conditioner.

The invention discloses a sealing inspection well socket and relates to the field of sealing connection devices of plastic inspection well sockets. The sealing inspection well socket comprises a socket body. The socket body comprises a fixed socket body and a removable socket body. The removable socket body is composed of an outer sleeve, an inner sleeve and an annular groove formed between the inner sleeve and the outer sleeve. The outer wall of the fixed socket body is provided with external threads. The inner wall of the outer sleeve is provided with internal threads corresponding to the external threads. The inner diameter of the fixed socket body is larger than the outer diameter of the inner sleeve. The sealing inspection well socket can compress a sealing ring between a pipe and the socket through the threads to reduce the gap between the pipe and the socket. The sealing inspection well socket is good in sealing performance and easy to operate.

The invention discloses a plastic automatic sealing bag with high sealing performance. The plastic automatic sealing bag comprises a square plastic bag and an automatic sealing device. The automatic sealing device comprises a left rubber soft magnetic sheet and a right rubber soft magnetic sheet, the length dimensions and the width dimensions of the left rubber soft magnetic sheet and the length dimensions and the width dimensions of the right rubber soft magnetic sheet are identical to one another, and the left rubber soft magnetic sheet and the right rubber soft magnetic sheet have attracting magnetism; the left rubber soft magnetic sheet is provided with two parallel protruded strips along the length direction, and two grooves which correspond to the two protruded strips are formed in the right rubber soft magnetic sheet along the length direction; left double-sided adhesive and right double-sided adhesive are respectively arranged at the left end of the left rubber soft magnetic sheet and the right end of the right rubber soft magnetic sheet, and the left rubber soft magnetic sheet and the right rubber soft magnetic sheet are respectively fixedly adhered on the upper portion of a left bag sheet and the upper portion of a right bag sheet by the left double-sided adhesive and the right double-sided adhesive. The plastic automatic sealing bag has the advantages that the fastening and opening efficiency can be obviously improved, and strict sealing requirements further can be met owing to the high sealing performance of the plastic automatic sealing bag.

The invention discloses a wooden structure assembly type building house. The wooden structure assembly type building house is composed of a roof, a side plate, a transverse plate and a bottom plate. The roof is of a triangular structure, solar cell panels are arranged on the oblique faces of the two sides of the roof correspondingly, a roof embedding buckle is arranged on the bottom face of the roof, the roof embedding buckle is connected with the side plate and a roof embedding hole in the top end of the transverse plate in an embedded mode, sealing and fixing are conducted through concrete,a transverse plate embedding buckle is arranged at the bottom end of the plate body of the transverse plate, and a side plate embedding hole and a switching box are arranged on the plate face on one side of the transverse plate; the side plate embedding hole is connected with the side plate embedding buckle at the side end of the side plate in an embedded mode, sealing and fixing are conducted through concrete, and the high airtightness of the whole house is ensured through an embedded type splicing mode of house materials; and a fixed pile body of the bottom plate is fixed in an inserted mode, the stability of the whole house is improved, and meanwhile through additional arrangement of the solar cell panels, the practicability of the wooden house is further enhanced.

The invention belongs to the technical field of the protective jacket, and particularly relates to a waterproof protective jacket for electronic equipment. The waterproof protective jacket comprises a protecting sheet, a protective shell, a first sealing plug and a second sealing plug; the protecting sheet comprises a transparent sheet area, a frame part and an enveloping end part; and the protective shell at least comprises an opening end part and a closed end part. According to the waterproof protective jacket provided by the invention, a better sealing structure is formed by the close cooperation between the protective shell and the protecting sheet by a waterproof bulge and a waterproof slot on at least two sides and the cooperation of an outer locking shell. The waterproof protective jacket is strong in air-tightness and good in waterproof effect; in addition, the material selection requirements of the protective shell, the protective shell and the outer locking shell are not high, and the material cost is low.

The invention discloses an antioxidant food packaging material and relates to the field of packaging materials. The antioxidant food packaging material is composed of an inner layer, a middle layer and an outer layer, wherein the inner layer is a freshness retaining layer, the middle layer is an antioxidant layer, and the outer layer is a sealing layer. The antioxidant food packaging material is high in sealing property, can achieve an antioxidant effect on packaged food, can effectively prevent the food from going bad, and can prolong the quality guarantee period of the food.

The invention provides a butterfly-type pneumatic program control valve body. The valve body comprises an end cover, wherein the end cover and a connecting ring are connected through a hexagon sockethead cap screw; the connecting ring connects the end cover and the valve body together through screws; an O-shaped sealing ring is arranged between a shaft sleeve and a fixed moving shaft, a driving shaft drives a butterfly valve to drive a driven shaft, and a space between the driven shaft the butterfly valve is sealed by a V-shaped sealing ring, the O-shaped sealing ring, a plastic oil seal body, the O-shaped sealing ring, a graphite gasket and a gasket ring; the butterfly valve is arranged in the valve body, the left end of the butterfly valve is connected with the driving shaft through a key and a nut, and the right end is connected with a driven shaft in the same manner; the butterfly valve is fixed on the driving shaft by the nut and is stopped by a stop gasket; the driving shaft isconnected with a magnetic block combination, the driving shaft drives the butterfly valve to rotate, the left end of the driving shaft is connected with an instrument panel, the interior is fixed by ahexagon socket set screw with cone point, and the middle part is matched with a shaft sleeve through a composite bearing to carry out high-efficiency rotation; and the driving shaft is provided witha screw fastening ring, and the screw fastening ring is connected with the valve body through the screws to fasten the driving shaft. The butterfly-type pneumatic program control valve body has the advantages that the sealing performance is high, the flowing condition of gas in the valve body can be accurately expressed, and the flow control characteristic is good.

The invention discloses a coverage type sterilization device used in a clinical laboratory. The coverage type sterilization device comprises a water tank, wherein the left end of the water tank is provided with a water inlet hole, the water tank is provided with supporting rods, the two supporting rods are both fixedly connected with the water tank, the lower end of the water tank is fixedly connected with a fixing block, the lower end of the fixing block is provided with a sterilization device, the sterilization device comprises an electric rotary shaft, the model of the electric rotary shaftis ysz001, the electric rotary shaft is rotatably connected with the fixing block, the lower end of the electric rotary shaft is provided with a turntable, a connecting pipe is fixedly connected between the electric rotary shaft and the turntable, the outer wall of the electric rotary shaft is rotatably connected with a bearing, the outer surface of the bearing is fixedly connected with a first water pipe, a cavity and spraying holes are formed in the turntable and are communicated, the lower end of the electric rotary shaft is provided with a water inlet groove, and the cavity, the connecting pipe and the water inlet groove are communicated. The coverage type sterilization device used in the clinical laboratory uses an air bag to surround the area covered by bacteria after the bacteria are detected out, then is used for executing sterilization and disinfection and is convenient and efficient.

The invention relates to the technical field of pipeline leakage detection devices, in particular to an underground pressure pipeline leakage detection device which comprises a pipeline, a reserved valve with a quick disassembly function is arranged on the pipeline, an installation sleeve is arranged on the reserved valve, and two sets of clamping grooves are symmetrically formed in the two sides of the installation sleeve. The rotating disc enables two sets of push rods to pull two sets of bearing rods to move oppositely through two sets of connecting rods and two sets of push rods, the bearing rods push bearing blocks to move along guide holes through guide columns till the bearing blocks extrude clamping blocks, and one ends of the clamping blocks move along inverted slopes arranged at the end opening portions of clamping grooves. The mounting sleeve moves downwards along the mounting hole, the movement of the mounting sleeve extrudes the sealing gasket, and meanwhile, the guide column drives the clamp to clamp the mounting sleeve, so that through the fixing mechanism, on one hand, the sealing performance of the mounting sleeve and the mounting hole is higher, the mounting sleeve is fixed, and on the other hand, the fixing mechanism is simple in structure and easy to operate; and the integrated instrument can be conveniently and quickly mounted and dismounted by workers.

The invention discloses a natural gas storage device with an annular sealing ring. An inner shell is made of metal which can resist a low temperature of liquefied natural gas, and outer shell is produced by steel which can resist the inner pressure of the inner shell. Stainless steel screen vaporizer filler with high density is arranged on the bottom of the inner shell, a sieve plate is arranged on the bottom of the vaporizer filler, and a supporting body is arranged at the bottom of the sieve plate. The supporting body comprises a flange and a web plate, and the annular sealing ring is arranged at the end of a shell body. A regular concave and convex spiral pattern is arranged in the annular sealing ring, an air flow channel is formed in the protruding part of the spiral pattern. The manufacturing cost is reduced; the thickness of an inner container is reduced by minimizing the difference between the internal pressure and the external pressure of the inner container, so that the container is manufactured by a low cost; and good mass transfer and heat transfer process can be performed in a filler layer by the stainless steel screen vaporizer filler, the sealing property of the annular sealing ring is high, heat insulation and heat preservation are achieved, the loss of energy and heat is reduced, the heat efficiency is improved, and the energy is saved.

The invention discloses a waterproof liquid crystal screen with good sealing performance. The waterproof liquid crystal screen comprises a liquid crystal screen body, a sealing unit, a heat dissipation unit and a waterproof unit. The liquid crystal screen body is embedded and mounted in a sealing frame, the interior of the upper end of the sealing frame is hollow, the lower side of the interior of the upper end of the sealing frame is fixedly connected with mounting grooves, the tail end of the sealing frame is fixedly connected with a rear shell, a heat dissipation box is fixedly mounted on the rear shell, and convex blocks are fixedly connected to a mounting frame on the upper sides of the two sides of the liquid crystal screen body; the convex blocks are embedded into the mounting grooves, and the upper end of the liquid crystal screen body is attached to a waterproof film. The waterproof liquid crystal screen with the good sealing performance is simple in structure, waterproofness is achieved through the internal physical structure, no other component consumes energy, waterproofness can be effectively achieved, the sealing performance is high, and the heat dissipation performance is good.

The invention discloses a filtering type gas turbine flowmeter with a gas leakage alarm function, and relates to the technical field of filtering type gas turbine flowmeters. The filtering type gas turbine flowmeter comprises a flowmeter body, wherein the flowmeter body comprises a connecting pipeline, a mounting frame, a display device and an alarm, the mounting frame is vertically connected to the middle side of the top of the connecting pipeline, the top of the mounting frame is connected with the display device, the two ends of the connecting pipeline are connected with first connecting discs, the two first connecting discs are connected with a gas pipe structure, and one end of the gas pipe structure is provided with a second connecting disc detachably connected with the first connecting discs. When the filtering type gas turbine flowmeter and the gas pipe structure are installed and used, the sealing performance of the connecting position is higher, the connecting position can be monitored in real time at the same time, when gas leakage occurs, alarm reminding can be conducted in time, the gas loss rate during gas leakage is reduced, the use is more flexible and convenient, and the filtering type gas turbine flowmeter is suitable for application and popularization.

The invention provides an explosion-proof purification lamp. The explosion-proof purification lamp specifically comprises a lamp cover and a lamp body, wherein the lamp cover and the lamp body are connected and combined in a sealed manner to form a shell provided with an explosion-proof cavity inside; a light transmitting plate is arranged on the lamp cover; a mounting frame of the light transmitting plate is arranged on the lamp cover, and is provided with a mounting groove of the light transmitting plate; the periphery of the light transmitting plate is inserted into the mounting groove; the outer surface of the light transmitting plate is the surface of one side opposite to the explosion-proof cavity, and the inner surface is the surface of one side towards the explosion-proof cavity; and the light transmitting plate is connected with the mounting groove in a sealed manner. As the light transmitting plate and the mounting groove are connected in a sealed manner, the total sealing performance of the explosion-proof purification lamp is further improved, and the lamp satisfies the higher explosion-proof purification requirement. Further, the weight of the lamp cover can be reduced, so that the installation and the maintenance are convenient.

The invention aims at providing a manual oppositely-opened multi-vane air amount adjusting valve. The manual oppositely-opened multi-vane air amount adjusting valve comprises an adjusting valve frame, vanes, a connecting base, a radial screw, a sleeve, a main shaft, a nut, a control valve, a connecting rod, a connecting screw, a coupler, a connecting rod transmission device, a vane shaft and a shaft sleeve. The manual oppositely-opened multi-vane air amount adjusting valve is characterized in that the connecting base is arranged at the upper end of the adjusting valve frame and connected with the adjusting valve frame, the connecting rod transmission device is arranged inside the adjusting valve frame, the main shaft penetrates the adjusting valve frame and is connected with the connecting rod transmission device, and the lower end of the connecting rod transmission device is rotationally connected with the upper end of the vane shaft; and the vanes are arranged on the vane shaft, and the vanes and the vane shaft are rotationally connected. The manual oppositely-opened multi-vane air amount adjusting valve is provided with the connecting screw and the nut, and therefore the connecting rod can be tightly pressed so as to control the opening degree and the air inlet amount of the air amount adjusting valve. The manual oppositely-opened multi-vane air amount adjusting valve has the beneficial effects of being high in sealing performance, convenient to maintain and simple in structure.

The invention discloses latex for waterborne interior-wall primer and a preparation method and application thereof. The latex comprises, by weight, 22.1-29.9% of monomer, 1.1-2.3% of polymerization partitioning agent, 0.04-1.05% of stabilizers, 0.1-0.5% of plasticizers, 0.1-0.25% of initiators and 66.1-75.0% of solvent, wherein the monomer is a mixture of vinyl acetate, ethyl methacrylate, butyl acrylate, isooctyl acrylate and acrylamide, and the polymerization partitioning agent is a mixture of pyrrole and morpholine. The prepared latex is good in closure performance, high in adhesive force and infiltration capacity, highly resistant to alkali burnout and water, good in watertightness, outstanding in salting-out resistant effect, remarkable in interlayer collocation effect and capable of effectively avoiding the defects of poor lasting effect, instable interlayer collocation, failure in reaching the standard of VOC (volatile organic compounds) and the like when common latex is used for the primer, thereby being a good binder for preparing excellent waterborne primer.

The invention provides a water area rescue protective clothing fabric which is composed of a waterproof fabric layer, a base cloth cover layer and a heat preservation layer; the waterproof fabric layer is a nylon fiber and graphene fiber textile fabric, and nylon fibers and graphene fibers are of a skin-core structure; the base cloth cover layer comprises an upper-layer structure and a lower-layer structure, yarns of the upper-layer structure comprise the following components in percentage by weight: 30-40% of polyester, 10-25% of aramid fiber, 15-20% of acrylic fiber, 5-10% of cotton fiber and 15-20% of glass viscose fiber, and yarns of the lower-layer structure comprise the following components in percentage by weight: 50-60% of aramid fiber, 2-8% of chinlon, 8-10% of polyvinyl chloride fiber, 15-25% of asbestos fiber and 5-15% of silk fiber; and the heat preservation layer is made of aramid fibers and colored cotton fibers through mixed spinning and weaving, the content of the colored cotton is 30-80 wt%, and the balance is the aramid fibers; and a titanium alloy material layer is also coated between the base cloth cover layer and the thermal insulation layer. The invention further provides the water area rescue protective clothing which is high in water seepage resistance and water pressure resistance, and the heat preservation performance of the water area rescue protection suit meets set indexes.

A 360-degree omnidirectional water outlet cover described in this application includes a transmission mechanism and a water sealing mechanism, the transmission mechanism is sleeved in the water sealing mechanism, and the upper end of the water blocking valve (10) in the water sealing mechanism is a cone The transmission mechanism is connected with the button (2), the ratchet gear sleeve (5), the transmission shaft damping ring (4), the transmission shaft (3), and the ratchet (6) from top to bottom in sequence. The water sealing mechanism includes the main body (1) And set the water blocking valve (10) plugged in the main body (1), the water blocking valve (10) is sleeved with a spring (11), and the top of the spring (11) is clipped with a spring buckle (7), the water blocking The top of the valve (10) is sleeved with a water blocking valve sealing ring (9), and the water blocking sealing ring (8) is clamped between the bottom of the water blocking valve (10) and the lower end of the main body (1); it has a multi-stage sealing ring Sealing structure, tapered plug-in seal, strong sealing effect.

The dust removal device comprises a dust suction hood, a pneumatic conveying pipeline, an adhesive tape press-sealing type synchronous transfer system and dust removal equipment, the adhesive tape press-sealing type synchronous transfer system comprises an air conveying opening, a movable air bellow, a ventilation groove, a ventilation groove open hole, a rubber belt and a roller, the movable air bellow is in an inverted-U shape and movably installed on the upper surface of the ventilation groove, and the movable air bellow is in an inverted-U shape and movably installed on the lower surface of the ventilation groove. The ventilation groove openings are located in the upper surfaces of the ventilation grooves and are connected with the movable air bellow and the ventilation grooves, and the distance between the ventilation groove openings is smaller than the length of the movable air bellow so that it can be guaranteed that the movable air bellow at least covers one ventilation groove opening at any time; more than one ventilation slot opening is always communicated with the movable air bellow and the ventilation slot, and the movement direction of the rubber belt is changed by utilizing the roller, so that the rubber belt at the place where the movable air bellow passes is lifted, the rest part of the rubber belt presses and seals the ventilation slot opening, and the smoothness of dust removal and ventilation is ensured under the condition of continuous discharging; meanwhile, the ventilation groove opening is adopted to replace a belt gland sealing mode adopted at the upper part of the ventilation groove, so that the sealing effect is better, the dust removal effect can be obviously improved, and the dust removal energy consumption is reduced.

The invention discloses an antibacterial packaging material for traditional Chinese medicinal materials and relates to the field of packaging materials. The antibacterial packaging material is composed of an inner layer, a middle layer and an outer layer, wherein the antibacterial packaging material comprises the inner layer being a freshness retaining layer, the middle layer being an antibacterial layer and the outer layer being a sealing layer. The packaging material for the traditional Chinese medicinal materials is high in sealing performance, can play an antibacterial role for the packaged traditional Chinese medicinal materials, can effectively prevent the traditional Chinese medicinal materials from going bad and can effectively prolong the guarantee periods of the traditional Chinese medicinal materials.

The invention relates to a household biogas tank rapid charging structure and a component. According to the invention, an annular sealing cavity between a movable cover and a tank cover combination surface is combined with an inflation tire placed in the sealing cavity, a charge valve pipe of the inflation tire is stretched out of the tank, an air gun is used for inflating the inflation tire, and high air pressure in the inflation tire provides tight combination of the inflation tire and the sealing cavity for sealing. By using the technology, the sealing performance of the movable cover is strong, folding is convenient, the rapid charging structure is convenient for stirring the materials in the tank at any time, gas generating rate is increased, and the rapid charging structure is favorable for ventilation and gas exchanging when the material is changed, and is capable of removing the waste material in a safe and convenient mode.