87results about How to "Easy to drain" patented technology

The utility model provides a photovoltaic support and a roof. The photovoltaic support comprises a water guide groove and a lock seam clamp, the lock seam clamp is installed at the top of the water guide groove, and the two sides of the lock seam clamp are used for installing a plurality of photovoltaic assemblies respectively. And the water chute and the photovoltaic module are connected into a whole through the lock seam clamp, so that the potential safety hazards of water accumulation, water seepage, corrosion and the like in the punching installation of the photovoltaic module in the skid-mounted equipment room are solved. The roof of the skid-mounted equipment room and the photovoltaic system are combined and integrated into a photovoltaic integrated roof structure, so that loopholes or roof damage risks existing at punching positions are avoided, normal operation of devices in the skid-mounted equipment room is guaranteed, and meanwhile, the labor load of photovoltaic module installation is reduced. The roof of the skid-mounted equipment room adopts a prefabrication process, and photovoltaic integrated design is carried out on the roof structure of the skid-mounted equipment room. The installation of a photovoltaic support of a metal structure is avoided, the load of the roof of the skid-mounted equipment room is reduced, and meanwhile, the risk that the photovoltaic support is overturned and damaged in strong wind weather is avoided.

The utility model relates to the technical field of ecological environment-friendly tools, in particular to an ecological environment-friendly slope protection frame and mold, which comprises a plurality of slope protection frame shells, the slope protection frame shells are sequentially spliced and laid on slope edges, two inner cavities are arranged in the slope protection frame shells, and an upper planting area and a lower planting area are arranged in the inner cavities. The upper planting groove and the lower planting groove are the same in structure, and an anti-skid layer is arranged on the inner wall of the upper planting groove. In the ecological environment-friendly slope protection frame and the mold, the upper-layer planting area and the lower-layer planting area are arranged in the slope protection frame shell, compared with a traditional single-layer planting area, the plant growth space is remarkably enlarged, more types and numbers of plants can be planted, more dense vegetation coverage is formed, and the ecological restoration function of the slope protection is enhanced. Meanwhile, the anti-skid layer on the inner wall of the upper-layer planting groove can effectively prevent soil from slipping off after plants are planted, and the stable growth environment of the plants is guaranteed; the bottom water leakage holes facilitate water drainage, and water accumulation is prevented from affecting plant root growth.

This invention discloses a fuel cell and its application. The bipolar plate includes a connecting structure with a cross-flow channel and a narrowing structure. The hydraulic diameter of the narrowing structure is smaller than that of the non-narrowing structure. The non-narrowing structure of the flow channel has a connecting structure corresponding to at least one of two adjacent ridges. Furthermore, the resistance of the gas in the first direction through the narrowing structure is R1, and the resistance in the second direction through the connecting structure is R2, where R1 / R2 ≥ 20. The first direction is the flow direction of the gas entering the flow field, and the second direction is perpendicular to the first direction. Therefore, the fuel cell bipolar plate provided by this invention can more fully utilize the pressure drop generated by the narrowing structure to create a larger pressure difference between adjacent flow channels. This allows a smaller flow field pressure drop to create the same or higher level of under-ridge gas convection and permeation effect within the gas diffusion layer or membrane electrode, thereby improving the under-ridge mass transfer and drainage performance of the fuel cell.

The utility model relates to the technical field of paronychia correction, in particular to a paronychia corrector, which is provided with a corrector and a dressing layer, so that in a paronychia correction process, the paronychia corrector can effectively resist bacteria and diminish inflammation for inflammation and pus generation symptoms, drain seepage, absorb the seepage through the dressing layer and correct nails, and the paronychia corrector has the advantages that the paronychia corrector is simple in structure and convenient to use. The wound does not need to be frequently cleaned, the operation is more convenient, and the correction effect is good; the device comprises a corrector, the device further comprises a dressing layer which is installed in the corrector. The corrector is used for correcting fingernails, and the dressing layer is used for antisepsis and anti-inflammation of wounds.

This invention discloses a composite dewatering agent for sludge dewatering in wastewater treatment and its preparation method, belonging to the field of sludge treatment technology. The composite dewatering agent comprises, by weight, the following raw materials: 30-50 parts chitosan-acetylcysteine-modified coal gangue, 20-40 parts cationic starch-modified fly ash fiber, and 1-3 parts nonionic surfactant. The composite dewatering agent of this invention, comprising chitosan-acetylcysteine-modified coal gangue, cationic starch-modified fly ash fiber, and nonionic surfactant, significantly improves the sludge dewatering rate through the synergistic effect of each component, utilizing multiple mechanisms such as charge neutralization, adsorption bridging, and the release of bound water through extracellular polymer destruction. This invention fully utilizes solid waste and natural materials in the preparation of the composite dewatering agent, achieving resource utilization of solid waste while avoiding residual pollution from traditional polyacrylamide flocculants and reducing environmental hazards.

The embodiment of the present application provides an odor isolation valve, a drain pipe and an air conditioner. The odor isolation valve comprises: a shell, the shell is provided with an inlet and an outlet oppositely, the inlet and the outlet are used for communicating with the drain pipe of the air conditioner; a partition plate, the partition plate is fixedly arranged in the shell, and the partition plate is located between the inlet and the outlet, a tapered communication groove is arranged on one side of the partition plate close to the inlet, the communication groove communicates with the inlet and the outlet; and a tapered floating element, the floating element is movably connected in the communication groove, so as to realize the switching of the communication groove between the open state and the closed state; wherein, in the closed state, the floating element and the communication groove have an included angle. In the embodiment of the present application, by making the floating element a tapered floating element, the communication groove a tapered communication groove, and making the floating element and the communication groove have an included angle in the closed state, the drainage of the odor isolation valve is simpler, and the user experience is improved.

The utility model discloses an oil camphor tree essential oil production flue gas treatment device which comprises a gas inlet pipe, a middle treatment device and a gas outlet pipe, and the gas inlet pipe and the gas outlet pipe are connected to the two sides of the middle treatment device respectively. The intermediate treatment device comprises a box body, a spraying piece, a pushing shaft and a cleaning blade; the box body is connected with an air inlet pipe and an air outlet pipe; the spraying piece comprises a plurality of spraying heads, and the spraying heads are arranged at the top in the box body; a sewage tank with a U-shaped structure is arranged at the bottom of the box body; a sewage outlet is formed in the middle of the bottom of the sewage tank; the pushing shaft is rotationally connected with the box body, one side of the pushing shaft is arranged in the sewage tank, the cleaning blades are of a spiral structure, the two cleaning blades are symmetrically arranged on the two sides of the pushing shaft, a pushing motor is arranged outside the box body, and the pushing motor is connected with the pushing shaft. Through the design, flue gas can be effectively purified, and pollution of a production site is reduced. Due to the design, pollution discharge of the box body is facilitated, blockage is prevented, and long-time stable operation of the intermediate treatment device is guaranteed.

The utility model discloses a kind of backflow-preventing self-closing check valve, including valve body, the inlet and outlet are opened in the valve body, buffering cavity and installation cavity are arranged in the valve body, the inlet is communicated with the buffering cavity, the outlet is communicated with the installation cavity, the buffering cavity is connected with installation cavity by passageway mouth, further include pressing plate and filter screen bucket, the pressing plate is set in the installation cavity, the pressing plate is used to block the passageway mouth, the filter screen bucket is set in the buffering cavity, the volume of the filter screen bucket is less than the volume of buffering cavity, the bucket mouth of the filter screen bucket is towards the passageway mouth, the bucket bottom and part of lateral wall of the filter screen bucket are medium flow channel.This kind of check valve has following beneficial effects: by adopting the bucket bottom and part of lateral wall of filter screen bucket can be as the passageway of medium flow, can increase flowing area, reduce the probability that foreign matter in medium blocks filter screen bucket, improve the reliability when filtering.

The utility model discloses a kind of black pig-tea leaf species and breeding combined use sewage manure fermentation system, including separation bin, the top of separation bin is equipped with fermentation tank, the top of fermentation tank is equipped with installation bin, the inside of installation bin is equipped with guide material pipeline, the top of guide material pipeline is connected with feed inlet, the top of installation bin is equipped with linkage mechanism, the bottom of guide material pipeline is equipped with two groups of discharge port, the bottom end of guide material pipeline is connected with stirring rod;The utility model is by the inside of fermentation tank that fecal water is guided from feed inlet and guide material pipeline, cooperate the intercoordination of linkage mechanism's linkage type stirring structure, fecal water and auxiliary material are more convenient for the mixing and stirring of more smooth and unobstructed, pay simultaneously during fermentation, by the activity of fermentation tank and the stirring of stirring rod, so that fecal water and auxiliary material in fermentation tank frame carry out more comprehensive stirring mixing, improve fermentation precision.

This utility model provides a Type B liquid tank hydrostatic testing fixture, relating to the field of shipbuilding fixtures. It includes: a sump well enclosure, a sump well bottom plate installed at the bottom of the sump well enclosure, a sealing assembly at the bottom of the sump well bottom plate, and stabilizing assemblies on both sides of the inner wall of the sump well enclosure. Each stabilizing assembly includes a cylinder, a stabilizing plate, and a protective plate. One end of the cylinder is installed on the inner wall of the sump well enclosure. In this utility model, by activating two cylinders, the corresponding stabilizing plates move, clamping and stabilizing the liquid tank. Water is then injected into the sump well enclosure to conduct a pressure test on the surface of the liquid tank. By unscrewing the fixing bolts of the sealing assembly and the sump well bottom plate, the sump well enclosure can be removed, allowing the water inside the device to drain through a drain outlet on the surface of the sump well bottom plate, facilitating drainage.

The utility model discloses an industrial circulating treatment water pump with a descaling function, which relates to the technical field of water pumps and comprises a bottom bearing frame, a driving motor is mounted on the right side of the top of the bottom bearing frame, and an impeller is movably connected in a pump shell. And a cleaning assembly facilitating cleaning of scale-like objects in the pump is arranged at the bottom end in the bottom bearing frame. According to the industrial circulating treatment water pump with the descaling function, by arranging a first sealing valve, a second sealing valve, a liquid inlet connector, a first electromagnetic valve, a liquid inlet pipe, a sewage discharging connector, a controller, a circulating pump, a liquid outlet, a transfer box and a liquid inlet, when the industrial circulating treatment water pump with the descaling function is used, chemicals in the transfer box are pumped into a pump shell through the liquid inlet pipe by the circulating pump; the sewage discharging connector synchronously discharges industrial circulating treatment water left in the pump shell, along with the fact that the pump shell is filled with chemicals, dissolving of scale is accelerated, pipe disassembling and pump disassembling are not needed, the function of facilitating descaling is achieved, and the problem that the device does not have the function of facilitating descaling is solved.

This utility model relates to the field of artificial flower pot technology, and more particularly to a structure for an artificial flower pot that facilitates drainage and moisture prevention. The structure comprises a flower pot body and an artificial flower fixing mechanism. A desiccant is placed inside the flower pot body. Multiple drainage holes are provided on the side walls of the flower pot body. A through-hole for replacing the desiccant is provided at the bottom of the flower pot body, and a sealing mechanism is provided inside the through-hole. The artificial flower fixing mechanism is attached to the top of the flower pot body. The middle part of the artificial flower fixing mechanism bends away from the flower pot body, allowing water to flow from the middle part of the artificial flower fixing mechanism to its edge and out through the drainage holes. An artificial flower is inserted into the artificial flower fixing mechanism. This utility model provides a structure for an artificial flower pot that facilitates drainage and moisture prevention, solving the technical problem that traditional flower pots easily become damp and waterlogged when artificial flowers are placed inside, leading to rotting of the artificial flowers and color changes due to moisture.

This invention provides a fixed flipping system, relating to the field of automotive painting equipment technology. It includes a moving mechanism, a flipping mechanism, a flipping shaft, and an auxiliary draining mechanism. The moving mechanism comprises two fixed frames, two limiting tracks, a moving drive assembly, and two moving plates. Each limiting track is installed within a fixed frame, and the moving drive assembly slides within the limiting track. Both moving plates are connected to the moving drive assembly, and the flipping mechanism is mounted on the moving plates. Through overall angle adjustment and the arrangement of lateral and vertical shaking components, forces can be applied to the residual liquid from multiple physical dimensions. Gravity, centrifugal force, and multi-directional inertial force work together to effectively disrupt the surface tension of the liquid, "driving" and collecting residual liquid hidden in the dead corners and bends of complex structures, achieving near-complete draining and significantly improving the quality and safety of subsequent processes.

The utility model provides a door and window structure and an assembly type steel structure transformer substation, and relates to the technical field of steel structure transformer substations, the door and window structure comprises a wall body assembly and a decoration edge assembly, the wall body assembly is provided with a through hole for installing a door and window; the decoration edge assembly comprises a decoration frame and a pressing frame, the decoration frame is matched with the hole, the decoration frame is arranged on the hole wall of the hole in a wrapping mode, a pressing part is arranged in the decoration frame, the pressing frame is located in the decoration frame, and the pressing frame is connected with the wall assembly so that the pressing part can be pressed on the wall assembly; the assembly type steel structure transformer substation comprises the door and window structure. According to the utility model, rainwater is effectively prevented from permeating from a crack of the wall body assembly at the position of the hole through the decoration edge assembly in a mode of covering the wall of the hole, the decoration edge assembly is pressed on the wall body assembly from the interior of the decoration frame through the pressing frame, and on the basis of ensuring firm installation, the outer surface of the decoration edge assembly is smooth and flat, water is convenient to drain, and the waterproof effect is remarkable.

This application discloses a grey water reuse treatment device, including a filtration mechanism, a reuse water tank, and a waste tank. The upper end of the filtration mechanism has a grey water zone A, which is connected to the drain outlet of a washbasin via an inlet pipe. The middle part of the filtration mechanism has a clean water zone B, which is connected to the reuse water tank via a filter suction pipe and a backwash suction pipe. The end of the filtration mechanism has a wastewater discharge zone C, which is connected to the waste tank via a wastewater discharge pipe. The grey water reuse treatment device provided by this application can effectively improve the service life of the filter by backwashing, eliminating the need for frequent filter element replacements and reducing maintenance costs. Simultaneously, the addition of a bactericide inhibits the growth of microorganisms.

The application relates to the technical field of heat pumps, and provides a drainage device and a heat pump system. The drainage device comprises a pipeline assembly, a switch assembly, a magnetic force assembly and a counterweight. The pipeline assembly comprises a refrigerant communication pipe and a drainage pipe. The switch assembly comprises a first switch arranged on the refrigerant communication pipe and a second switch arranged on the drainage pipe. One of the first switch and the second switch is a power-on closed switch, and the other of the first switch and the second switch is a temperature memory switch. The magnetic force assembly comprises a force applying piece and an opening and closing piece which are magnetically matched with each other. The opening and closing piece is slidably arranged in the drainage pipe to open or cut off the drainage pipe. The gravity and the refrigerant from the refrigerant communication pipe can drive the counterweight to move, and the counterweight drives the force applying piece to move to drive the opening and closing piece to slide. In the weather with low temperature, when power failure or the user mistakenly turns off the power supply, the drainage device can automatically drain the water in the water circuit of the heat pump system.

The utility model relates to a kind of steel pipe section cleaning auxiliary tool, it is characterized by: including support frame, transverse shaft, rotating unit and steel pipe section pole;In the utility model, by special steel pipe section cleaning support, steel pipe section is nested on steel pipe section pole;The rotating unit structure used can adjust angle on one hand to facilitate the placement of steel pipe section, on the other hand can adjust angle to facilitate flushing inner wall, can sufficiently flush inside and outside of steel pipe section, in addition, after completing flushing, inclined state steel pipe section is more easily drained;The device plays a very strong auxiliary role for the cleaning of steel pipe section, improves the cleaning efficiency and cleaning effect of steel pipe section;Meanwhile, the draining efficiency of steel pipe section is also improved.

The application relates to a waterproof and drainage structure of a basement of building decoration, which comprises a cement base layer, a drainage groove is formed in the upper surface of the cement base layer, a drainage pipe is arranged through the cement base layer, a waterproof plate is arranged on the upper surface of the cement base layer, a plurality of water seepage grooves are formed in the upper surface of the waterproof plate, a basement bottom plate is arranged on the upper surface of the waterproof plate, a ladder groove is formed in the upper surface of the basement bottom plate, a drainage cover is arranged on the ladder groove, a plurality of drainage holes are formed through the upper surface of the drainage cover, a filter assembly is arranged in the drainage groove, the filter assembly comprises a supporting plate, a plug-in block and a filter box, accumulated water on the basement bottom plate enters the drainage groove through the drainage holes, the drainage holes filter the impurities with large volumes in the accumulated water, the waterproof plate effectively prevents water seepage, water flows into the drainage groove through the water seepage grooves, the water in the drainage groove is filtered by the filter box and then downwardly discharged into the drainage pipe, the probability that the impurities in the water block the drainage pipe is reduced, and the basement can be normally drained.

The utility model provides a mobile production box, including landing leg, box body, moving wheel, the top end of landing leg is connected with the box body, the bottom end of landing leg is equipped with the moving wheel, the bottom surface of the box body is the slope surface, the lowest position of the side surface of the box body is equipped with a discharge pipe, the discharge pipe is equipped with a manual valve, and the manual valve is equipped with a control valve. A bridge frame is fixedly connected to the top of the box body, and a gear motor is installed in the middle of the top face of the bridge frame. Compared with the prior art, the device has the advantages that through the matched arrangement of the box body, the discharge pipe, the manual valve, the bridge frame, the speed reducing motor, the main shaft, the stirring blades, the interface and the spiral feed pipe, in the device, the bottom surface of the box body is designed into a slope type, and the horizontal discharge pipe is arranged at the lowest position of the side surface of the box body, so that a mixed liquid finished product can be conveniently discharged from the inside of the box body and is not easy to remain; an adding pipeline is improved and designed to be a spiral feeding pipe, fluid forms a stable spiral flow field in the pipe, the on-way resistance coefficient is reduced, and the blocking problem during raw material agent adding is solved.

The utility model discloses a disinfection cleaner for laparoscopic minimally invasive surgery suture, and belongs to the technical field of medical instruments. The disinfection cleaner for laparoscopic minimally invasive surgery suture comprises a main body, the main body comprises a cleaning box, a draining mechanism is arranged in the cleaning box, the draining mechanism comprises a pair of L-shaped connecting frames, a connecting ring is connected between the bottom ends of the pair of L-shaped connecting frames, the interior of the connecting ring is connected with a cleaning barrel through a bearing, the upper end of the cleaning barrel is connected with a hollow ring, and the lower end of the hollow ring is connected with the cleaning barrel. The upper end of one L-shaped connecting frame is connected with a U-shaped frame, a waterproof motor is installed at the upper end of the U-shaped frame, the output end of the waterproof motor penetrates through the U-shaped frame, extends into the U-shaped frame and is in transmission connection with a gear, and the gear is meshed with the outer gear ring. And the practical value is high.

This utility model relates to the field of aluminum alloy processing technology and provides a waste chip cleaning device for aluminum alloy drilling, including a base plate on which a cleaning box is fixed; a telescopic pipe fixedly connected to the cleaning box, with a chip collection hood fixedly connected to the chip inlet end of the telescopic pipe for collecting waste chips from the drilling machine; a handle fixedly attached to the chip collection hood; a first rotating rod mounted inside the cleaning box via a bearing seat, with fan blades fixed on the first rotating rod; a filter plate disposed inside the cleaning box; a funnel fixedly installed inside the cleaning box; a detachable filter basket disposed inside the cleaning box; and a drive mechanism disposed on the base plate for driving the first rotating rod. The waste chip cleaning device for aluminum alloy drilling provided by this solution achieves efficient collection, sorting, and cleaning of waste chips from the drilling machine, reducing waste chip residue.

This utility model relates to the field of crop seed processing technology, specifically to a gourd seed screening and cleaning device, including a cleaning box and a screening assembly; the screening assembly includes two mounting plates, a screening cylinder, multiple screens, a first spring, and a connecting frame. The screening cylinder is rotatably disposed between the two mounting plates, and the multiple screens are spaced vertically inside the screening cylinder. The mounting plates have two connection ports, located on the upper and lower sides of the mounting plate, respectively. The connecting frame is slidably connected to the cleaning box, and the two ends of the first spring are fixedly connected to the connecting frame and the cleaning box, respectively. One end of the connecting frame is located inside one of the connection ports. After screening and cleaning, the screening cylinder can be removed from the cleaning box to drain the gourd seeds, preventing mold growth and affecting seed quality.

The utility model belongs to the technical field of tunnel primary support detection equipment, and particularly relates to a detection hole reserving device for tunnel primary support detection, which comprises a mounting seat, a steel arch frame, a straight pipe, geotechnical cloth and a fixing component, the mounting seat is detachably connected with the steel arch frame, and the two ends and the outer wall of the straight pipe are wrapped with multiple layers of geotechnical cloth. The straight pipe is arranged on one side of the steel arch frame, the two ends of the straight pipe extend out of the front surface and the rear surface of the steel arch frame correspondingly, and the straight pipe wrapped by the geotechnical cloth is fixed to the mounting base through the fixing assembly; the inner channel of the straight pipe or the cavity formed after the straight pipe is pulled out is the preformed hole for tunnel primary support cavity detection, the treatment procedure after concrete spraying is completed can be simplified, the straight pipe is wrapped with the geotechnical cloth, the structure is simple, installation is convenient, impurities such as silt and chippings in the concrete spraying process can be prevented from entering the inner channel of the straight pipe, and the construction efficiency is improved. Excellent water permeability is achieved, and drainage of the inner wall of the tunnel is facilitated.

This utility model relates to a cleaning device, including a water tank and a food cleaning tank disposed within the water tank. The food cleaning tank includes a tank body and a cleaning basket disposed within the tank body. A recessed water-passing area is provided at the bottom of the tank body, and a water-passing outlet is provided in the water-passing area. A media conveying module is disposed outside the water tank, which can be detachably connected to the water-passing outlet to facilitate water intake and / or drainage of the food cleaning tank. The aforementioned water-passing area can converge and transition the water flow, facilitating independent water intake and drainage of the food cleaning tank through the media conveying module. During water intake, this area can slowly transition the water flow to the cleaning basket above; during drainage, the water-passing area can converge and discharge the outflowing water, which is beneficial for improving drainage and removing sediment, and also helps to completely drain wastewater, achieving zero residual water in the food cleaning tank.

This invention discloses a microbial agent quantitative dosing fertilization device for cold-waterlogged fields, which relates to the field of fertilization technology. The device includes a frame, a fertilizer storage mechanism, and a spreading mechanism. The fertilizer storage mechanism includes a hopper and a storage bin. A quantitative feeder is installed inside the hopper near the storage bin. An arc-shaped base plate is fixedly connected to the center of the hopper. A connecting rod is installed at the circular opening in the center of the arc-shaped base plate. A flexible feeding cone cap is fixedly connected to the outer surface of the connecting rod. The spreading mechanism includes a cylinder and a square hopper. A soil-turning plow is hinged to the side of the square hopper. A hydraulic cylinder is hinged to the surface of the square hopper near the soil-turning plow. An elastic net is fixedly connected to the outlet at the bottom of the square hopper's inner cavity, achieving quantitative dosing. This allows for precise dosing, avoids fertilizer accumulation, ensures full contact between the fertilizer and the soil, and is safe and reliable.

This utility model relates to the field of foundation pit drainage technology, and more specifically, to a foundation pit drainage structure, comprising: a base platform, in the shape of a rectangular frame, disposed within the foundation pit; a foundation wall, vertically fixed to the base platform; four sets of water filter components, detachably disposed on the four inner sides of the base platform, each water filter component having a protruding portion, the protruding portion being hollow and having several water passage holes, and a connecting pipe portion on the upper side of each water filter component for connecting an external water pump; and four hollow connecting pieces, each communicating with the protruding portions of two adjacent water filter components. This utility model's foundation pit drainage structure aims to solve the problems of uneven drainage and easy clogging in existing foundation pit technologies.

The utility model provides an oil layer sand production prevention device which comprises a base pipe framework and a plurality of annular steel wires wound on the outer side of the base pipe framework, a liquid passing gap is formed between every two adjacent annular steel wires, a plurality of radial flow guide grooves are formed in the upper surface and the lower surface of each annular steel wire, and in the same annular steel wire, a plurality of radial flow guide grooves are formed in the upper surface and the lower surface of each annular steel wire. The radial flow guide grooves are aligned up and down; the depth of the radial flow guide grooves is smaller than the width of the liquid passing gaps, and the radial flow guide grooves are used for guiding fluid to the inner side of the annular steel wire. The oil layer sand production control device has the advantages of being scientific in design, not prone to blockage, long in service life and high in practicability.

The utility model belongs to the technical field of bulletproof vest, concretely relates to water inter tactics folding bulletproof vest, include: two distribution in front and back two sides's bulletproof vest body, every bulletproof vest body all includes piece front side and piece back side, be equipped with the folding part for turning over folding between piece front side top and piece back side top, and the folding part is based on folding and makes piece front side with piece back side folding and adhering, be equipped with the connecting piece for connecting between piece front side both sides and piece back side both sides, connecting piece includes three first magic paste prickle face and three first magic paste nap, three first magic paste prickle face respectively set up in piece back side's bottom and both sides, the utility model discloses through the folding part of adding, and the front piece back piece is single -layer material upside folding and wrapping, and the rest three sides are wrapped and fixed bulletproof board with connecting piece, so as to adopt single -piece folding structure and use connecting piece to fix, tightly wrap bulletproof board.

The utility model provides a plunger assembly with a drainage structure for a high-pressure cleaning machine. The plunger assembly comprises a plunger core, a ceramic tube and a plunger screw, one end of the plunger core is provided with a columnar sleeving part, and the ceramic tube is arranged on the columnar sleeving part in a sleeving mode. The end of the plunger core is further provided with a threaded hole, and the ceramic tube is fixed to the plunger core through a plunger screw. A drainage groove is formed in the peripheral wall of the columnar sleeving part. According to the utility model, the ceramic tube can be prevented from bursting.

The utility model relates to the technical field of medical equipment, and provides a urodynamic examination bed which comprises a waist and back area, a hip and leg area and a shank area, the waist and back area and the hip and leg area are rotationally fixed through a first rotating mechanism, and the hip and leg area and the shank area are rotationally fixed through a second rotating mechanism. A base is arranged below the hip-leg area and is supported by the base, a hollow area is arranged between the hip-leg area and the shank area, and a pipeline fixing buckle is arranged in the shank area. The crus area is additionally arranged and can be used for supporting the crus of a patient, so that the patient feels more comfortable during examination. A patient can lie flat to be examined, and the waist and back area and the shank area can be adjusted to any comfortable angle, so that the bed is suitable for patients with limb paralysis, lower limb weakness and inconvenience in movement.