310 results about "External drainage" patented technology

The utility model relates to the technical field of filtering equipment, in particular to a filtering funnel. Comprising an inner filtering layer and an outer drainage layer, the inner filtering layer and the outer drainage layer are of an integrated structure, and a negative pressure cavity is formed between the inner filtering layer and the outer drainage layer. A plurality of filtering holes are circumferentially formed in the side wall of the inner filtering layer. According to the filter funnel, the structure of the existing filter funnel is improved, and in the specific filtering process, the gravity of filtrate in the filtering process is dispersed through the arrangement of the filter holes in the side wall of the inner filter layer, so that the breakage of filter paper is greatly reduced. Moreover, through the structural arrangement that the negative pressure cavity is formed between the outer drainage layer and the inner filtering layer, the filtering speed is greatly increased, and the overall working efficiency is greatly improved.

The invention discloses a dry-wet freezing and thawing cycle test device suitable for a rock-soil sample. The device comprises a box body structure (a box body, a temperature-proof glass window, an exhaust hole and the like, and a thermal insulation layer is arranged between the inner wall and the outer wall of the box body); the humidity control system comprises a humidity control panel, a humidity system converter, a water storage tank, an atomizing nozzle, a fan, a humidity sensor and the like, drainage grooves and drainage holes are formed in the periphery of the bottom of the box body, and a drainage pipe is externally connected; the temperature control system comprises a temperature control panel, a temperature system converter, a heating pipe, a temperature sensor, a semiconductor refrigeration device and the like; and the quality control system comprises a quality control panel, a quality control converter, a weighing device and a sample placing table. According to the device, the dry-wet freezing and thawing cycle degree is controlled by testing the quality of the sample and converting the quality into the water content of the sample, the freezing and thawing process of the sample is realized by controlling low-temperature freezing and high-temperature thawing, the test efficiency and the test accuracy are improved, and the problems of complex test process and low test precision of the existing dry-wet freezing and thawing cycle test are effectively solved.

The invention relates to the technical field of machining tools, and discloses a small finish machining ball-end milling cutter which comprises a cutter bar and a ball head which are integrated, a V-shaped groove is formed in the ball head, an upper cutter mounting groove and a lower cutter mounting groove are formed in one face in the V-shaped groove, and an upper blade and a lower blade are mounted in the upper cutter mounting groove and the lower cutter mounting groove correspondingly. An inner cooling spray pipe is arranged in the liquid conveying channel in an up-down sliding mode, a lower liquid discharging opening is formed in the side face of the bottom of the inner cooling spray pipe, an outer liquid discharging opening is formed in the side face of the middle section of the inner cooling spray pipe, and an outer liquid discharging channel is formed in the inner wall of the ball head. The other end of the outer liquid discharge channel is communicated with one side, opposite to the knife mounting groove, in the V-shaped groove; the problems that when a small-sized ball-end milling cutter for finish machining is used for vertical punching, scrap iron is easily flushed into a preset hole by cooling liquid to affect chip removal, and an existing cooling liquid spraying mode does not meet the chip removal requirement during horizontal cutting are solved.

The invention discloses a sterilizer for aquaculture, and relates to the technical field of aquaculture. The device comprises an unmanned transportation disc, a disinfectant tank and a weighing device are fixedly installed at the top of the unmanned transportation disc, a weighing frame and a discharging valve are fixedly installed at the bottom of the disinfectant tank, the weighing frame is fixedly installed at the top of the weighing device, a mixing cabin is arranged in the unmanned transportation disc, and the discharging valve is fixedly installed at the bottom of the mixing cabin. The bottom end of the discharging valve extends into the mixing cabin, and pumping cabins are arranged on the two sides of the mixing cabin. According to the device, a disinfectant and raw water are mixed and finally flow into a water body through each external drainage pipe for disinfection, at the moment, two propeller assemblies stop running, and the unmanned transportation disc can be driven to rotate at the original position by the counter-acting force of the flow of the external drainage pipes arranged in a fan shape, so that the spraying range and uniformity of the disinfectant are improved, and the disinfection effect is improved. And then, the unmanned transportation disc is used for successively putting the disinfectant into each part of the water body, so that unmanned accurate putting and uniform putting are realized.

The invention provides an anti-waterlogging drainage structure for a village in city low-lying area. The anti-waterlogging drainage structure comprises a porous permeable drainage layer and a water storage permeation unit. The surface of the porous water-permeable drainage layer is in a micro-slope design, and a porous pipeline is embedded in the porous water-permeable drainage layer, can be arranged in the slope direction or in the direction perpendicular to the slope direction and is connected to an external drainage system. The water storage permeation unit comprises an upper permeation area and a lower water storage area, and the upper permeation area is filled with sandy soil and permeable vegetation and used for slowing down the flow velocity of rainwater and filtering impurities. The lower layer water storage area is provided with a hollow structure, and the hollow structure is connected with an external irrigation system and used for storing and recycling rainwater. According to the anti-waterlogging drainage structure for the village in city low-lying area, the pressure of a drainage system can be remarkably reduced under the rainstorm condition, meanwhile, a water source is provided for follow-up irrigation, and compared with a traditional single drainage or water storage structure, the higher comprehensive management efficiency is achieved, and the higher rainwater storage and staged treatment capacity is achieved.

The invention provides an underground compressed air energy storage chamber surrounding rock drainage system and method.The underground compressed air energy storage chamber surrounding rock drainage system comprises an inner drainage structure arranged in a chamber and an outer drainage structure arranged on one side of the chamber, and the inner drainage structure comprises a first drainage pipe and a second drainage pipe which are arranged on the peripheral side of the chamber; a first water collecting cavity and a second water collecting cavity are formed in the lower side of the chamber, the first drainage pipe is communicated with the first water collecting cavity, the first water collecting cavity is communicated with the second water collecting cavity, a filtering structure is arranged between the first water collecting cavity and the second water collecting cavity, and a supporting structure is arranged in the chamber. According to the underground chamber, crack water and underground water can be collected and then drained, so that a good drainage effect can be achieved, permeated water can be drained through the water seepage and drainage layer, a good anti-seepage effect can be achieved, the crack water is prevented from corroding the steel lining sealing layer, and the safety of the chamber is guaranteed; the sliding plate can drive the supporting structure and the cleaning structure to slide.

The invention discloses a drainage system of washing equipment, the washing equipment and a control method.The drainage system comprises a drainage pump, the water outlet end of the drainage pump is communicated with a filter element, a water outlet of the filter element is communicated with an outer drainage pipe, and an emergency water drain valve is arranged between the water outlet end of the drainage pump and a water inlet of the filter element and comprises an outer pipe and an inner pipe, the drainage inlet is communicated with the water outlet end of the drainage pump, the first water opening is communicated with the water inlet of the filter element, and the second water opening is communicated with an outer drainage pipe; the inner pipe is arranged in the outer pipe in a reciprocating motion mode in the axis direction and moves to a first position where the drainage inlet and the first water opening are communicated and communication between the drainage inlet and the second water opening is cut off, and a second position where the drainage inlet and the second water opening are communicated; the reset piece provides elastic force for the inner pipe, and the inner pipe overcomes the elastic force of the reset piece under the action of water pressure and moves to the second position from the first position. When the filter element is not smooth in filtering, water can be directly drained through the emergency water drain valve, and current operation of washing equipment is not affected.

The invention discloses a coal mine gas extraction device, which relates to the technical field of gas extraction safety, and comprises an extraction pipe arranged in an extraction channel and connected with external extraction equipment; the sleeve is arranged on the outer side of the extraction pipe, the outer wall of the sleeve is attached to the extraction channel, an upper fixing ring is arranged on the top, and a lower moving ring and a sliding shaft sleeve are arranged on the lower portion; the pumping and drainage plugging device is fixed on the extraction pipe, and the outer side of the top is fixedly connected with the upper fixing ring; the bottoms of the limiting control devices are fixedly connected with the lower moving ring, the outer sides of the limiting control devices are fixedly connected with the inner wall of the sleeve, and the inner sides of the limiting control devices are fixedly connected with the pumping and drainage plugging device; the bottom of the plugging control device is fixedly connected with the lower moving ring, the outer side of the plugging control device is fixedly connected with the inner wall of the sleeve, and the inner side of the plugging control device corresponds to the side part of the pumping and draining plugging device. The gas drainage device has the gas drainage efficiency and the outburst early warning protection capacity, and integration of the pressure dynamic monitoring function, the quick response plugging function and the automatic reset function is achieved.

The invention discloses a thoracic surgery nursing operation teaching model, which relates to the technical field of medical models and comprises a trunk model, a mounting plate, a puncture rubber plug, a hydrops bin, a tube connector, a hose, a syringe, a sealing cover, a sliding plug, a rubber bag and a puncture assembly. And the liquid pushing assembly is arranged on the syringe. The liquid pushing assembly drives the sliding plug to slide in the injection cylinder, then liquid in the injection cylinder is squeezed into the liquid accumulation bin, drainage liquid can enter an external drainage tube, simulation of closed drainage operation of the thoracic cavity is achieved, when the sliding plug moves to a fixed position, the puncture assembly penetrates into the rubber bag, and the drainage effect is improved. The marking liquid in the rubber bag flows into the syringe, the color of the liquid in the syringe becomes red, drainage operation under the active bleeding condition is simulated, in addition, drainage liquid with the light color in the early stage can be simulated, and drainage liquid in the later-stage active bleeding can be simulated. And the emergency handling capability of green medical personnel can be greatly improved.

The automatic dehumidification drainage system comprises a shell, a water receiving disc and a water tank, and the water receiving disc is located on the upper side of the water tank and supported and installed on the bottom sides of an evaporator and a condenser in the shell; a water pumping assembly used for automatically pumping and discharging collected condensate water out of the shell is detachably installed in the water tank. The top of the water pumping assembly is provided with a multifunctional socket which is in butt joint fit with a power plug in a water tank installation groove and a signal connector used for detecting whether the water tank leaves the original position or not. The shell is further provided with a drainage butt joint assembly which directly discharges condensate water collected in the water pan or automatically discharges the condensate water in the water tank through an external drainage hose. Through respective butt joint connection of the multifunctional socket and the drainage butt joint assembly, the problem of drop leakage of a drainage port and the problem of unreliable power supply connection of a water pump contact are effectively avoided, and the detachable water pumping assembly facilitates disassembly and maintenance of the water pump when the water pump breaks down.

The utility model relates to the technical field of medical instruments, in particular to an external drainage device convenient for adjusting the height of a drainage dropping bottle, which comprises a sliding structure, a scale plate and the drainage dropping bottle, the drainage dropping bottle is arranged on the sliding structure, the sliding structure is in sliding connection with the scale plate, and the scale plate is arranged on the drainage dropping bottle. The sliding structure comprises a first sliding piece and a second sliding piece which are arranged on the front face and the back face of the scale plate respectively, and an adjusting piece used for adjusting the distance between the first sliding piece and the second sliding piece. The drainage dropping bottle is simple in structure, low in manufacturing cost and convenient to use, sliding and fixing of the sliding structure are achieved by adjusting the distance between the first sliding part and the second sliding part through the adjusting part, and medical staff can adjust the height of the drainage dropping bottle conveniently.

A negative pressure drainage bottle comprises a drainage bottle body, an inner cavity of the drainage bottle body forms a liquid storage cavity, the drainage bottle body is further provided with a drainage connector and a negative pressure connector which are used for being connected with an external drainage tube and a negative pressure device respectively, the drainage connector is communicated with the liquid storage cavity, and the negative pressure connector is communicated with a first ventilation tube located in the liquid storage cavity. At least two second ventilation pipes extend outwards from the side part of the first ventilation pipe in the radial direction, the pipe lengths of the second ventilation pipes are different, and at least part of pipe openings of the second ventilation pipes are located on the upper layer and the lower layer of the liquid storage cavity; a waterproof breathable film is arranged at the opening of each second vent pipe, or a waterproof breathable film is arranged in a pipeline, leading to the negative pressure device, of the opening of each second vent pipe. Due to the arrangement of the first ventilation pipe and the plurality of second ventilation pipes, when the drainage bottle which is not full of the seepage liquid is toppled over, at least one second ventilation pipe can be communicated with the liquid storage cavity and the negative pressure device to conduct negative pressure conduction, the interior of the bottle is in a negative pressure state all the time, and drainage is not interrupted due to toppling over.

The invention discloses a ventricular drainage tube with a hydrophilic coating and a packaging device of the ventricular drainage tube, and relates to the technical field of medical instruments, and the ventricular drainage tube comprises a drainage tube body which is of a hollow tubular structure; the drainage end is arranged at one end of the drainage tube body, and a plurality of drainage holes are formed in the drainage end; the connecting end is arranged at the other end of the drainage tube body, and a connector used for being connected with an external drainage device is arranged at the connecting end; the outer surface of the drainage tube body is coated with a hydrophilic coating. According to the ventricular drainage tube with the hydrophilic coating, the drainage tube body is of a hollow tubular structure, drainage liquid can enter the drainage tube body through the drainage holes in the drainage end and is drained out of a body through an external drainage device, the hydrophilic coating is arranged on the surface of the drainage tube, friction between the drainage tube and tissue is reduced, and the drainage effect is improved. Meanwhile, substance attachment is inhibited, the drainage effect is improved, and the infection risk is reduced.

The utility model discloses a biliary tract inside and outside drainage device which comprises a drainage catheter, a fixing stay wire and a hard sleeve. The drainage catheter is composed of an inner drainage area, a narrow section covering area, a shaping area and an outer drainage area, and the interior of the drainage catheter is of a hollow structure. One end of the inner drainage area is designed into a cylindrical cone; a clamping table is arranged at one end of the outer drainage area and used for connecting a cap or a drainage bag; side holes penetrating through the inner cavity are formed in the outer walls of the inner drainage area and the shaping area; a marker point is arranged between the rear end of the side hole of the inner drainage area and the narrow section coverage area; the shaping area is curled into a loop in a natural state, and the shaping area can be straightened through the hard sleeve; the narrow section coverage area is distributed between the inner drainage area and the shaping area; the fixing stay wire comprises a fixing piece and a stay wire, and the tail end of the stay wire is connected with the fixing piece. The drainage catheter main body adopted by the utility model is made of a material with good biocompatibility; and internal drainage and external drainage can be realized. Multiple side holes are formed in the middle and the head end of the drainage tube, sufficient drainage is promoted, and infection risks are reduced.

The invention discloses a sludge treatment method of sludge treatment equipment, which comprises the following steps of: spirally rotating sludge along the axis of a roller, and gradually separating to separate mud and water; water enters the inner space of the roller through the water passing holes of the roller, the bottom of the roller is in butt joint with an external drainage pipe, the water in the roller is discharged along the drainage pipe, rotary rotation of the roller on sludge is achieved, eccentric separation of the sludge is achieved, and therefore spiral separation of the sludge is achieved. Therefore, the mud moves from the top space of the barrel to the bottom space of the barrel; when the mud reaches the bottom space of the cylinder body, the mud gradually moves along the central axis of the cylinder body under the guidance of the bottom space of the cylinder body, is gathered at the bottom mud discharge hole of the cylinder body and is discharged by a mud discharge pipe butted with the mud discharge hole, and the sludge forms mud in the separation process; mud is gradually gathered in the middle in multiple directions in the bottom space, so that the smoothness of the mud discharge hole is ensured.

The utility model discloses an installation support and an air conditioner, and relates to the technical field of air conditioners, the installation support is used for installing an air conditioner outdoor unit of the air conditioner, the air conditioner outdoor unit comprises an outdoor unit main body and an outdoor drain pipe communicated with the outdoor unit main body, and the installation support comprises a bearing support and a supporting support. One side of the bearing support is installed on a window, the other side of the bearing support extends to the outdoor space in the first direction, and the bearing support is used for installation of the outdoor unit body. The upper end of the supporting support is installed on the bearing support, the lower end of the supporting support abuts against an external wall, at least the supporting support is provided with a first limiting structure, and the outdoor drainage pipe is fixed through the first limiting structure. According to the technical scheme, the outdoor drainage pipe can be fixed conveniently, and drainage of the air conditioner outdoor unit is facilitated.

A lumbar cistern drainage quantitative alarm device disclosed by the present invention comprises a setting frame, a weighing device, a color sensor and a control circuit, the weighing device is arranged on the setting frame, a liquid collection bag is hung on the weighing device, and the weighing device is equipped with a timing module to monitor and record the weight change amount of the liquid collection bag in unit time; the color sensor is arranged on the side face of the arrangement frame and is opposite to the liquid collecting bag, the control circuit comprises an alarm module and is electrically connected with the timing module, the weighing device and the color sensor, and the color sensor gives an alarm through the alarm module when monitoring that the liquid collecting bag changes color. The lumbar cistern external drainage device has the advantages that the drainage rate can be monitored, and the safety of lumbar cistern external drainage is improved.

The utility model relates to the technical field of drainage apparatuses, and discloses an external drainage device for an Ommaya liquid storage bag, which comprises a flexible fixing disc and a drainage needle head, the drainage needle head comprises an insertion part and a fixing part which are communicated with each other, the fixing part is horizontally placed in the flexible fixing disc, and the insertion part is vertically connected to the bottom of the flexible fixing disc; the device further comprises a connecting hose, a drainage hose and a sealing gasket. And a viscous auxiliary material. The drainage needle head is fixed in the flexible fixing disc, so that the bending degree of the scalp needle is unified, the needle head does not need to be bent additionally, a sewing fixing mode is not adopted and is changed into a pasting fixing mode, meanwhile, the flexible fixing disc and the sealing gasket can change the shape of the scalp needle, the scalp needle is attached to the scalp of a patient during fixing, fixing is firm, and fixing steps are reduced; the pain of a patient is reduced, the drainage effect is enhanced, the infection rate is reduced, the drainage effect of the Ommaya sac is fully exerted, and the recovery of the patient is promoted to the greatest extent.

The utility model discloses a double-guide drainage structure for roof external drainage, and relates to the technical field of house building construction. According to the technical key points, the device comprises a first double-water-guide assembly arranged at the junction of a roof structure and a parapet wall, the first double-water-guide assembly comprises a horizontal main water drainage pipe, the horizontal main water drainage pipe is installed on the parapet wall in a penetrating mode, and the inner wall of the lower side of the horizontal main water drainage pipe is flush with a protective surface layer in the roof structure; a horizontal drainage branch pipe is arranged under the horizontal main drainage pipe, and the lower side inner wall, located at one end of the inner side of the parapet wall, of the horizontal drainage branch pipe is aligned with the lower bottom of a heat preservation layer in the roof structure. The ends, located on the outer side of the parapet wall, of the horizontal drainage branch pipe and the horizontal main drainage pipe are fixedly connected with a vertical outer drainage pipe. By means of the horizontal main water drainage pipe and the horizontal water drainage branch pipe in the first double-water-guide assembly, accumulated water above a protective layer in the roof structure can be effectively drained, and when accumulated water exists in the roof structure, the accumulated water in the roof structure can be effectively drained.

The utility model discloses a drainage device, and belongs to the technical field of emergency drainage. Comprising a movable base, a fixing frame is rotationally arranged on the outer wall of the top end of the movable base, a collector is arranged on the fixing frame, a plurality of flow dividing pipes are fixed to the outer wall of the bottom end of the collector in the circumferential direction at equal intervals, and adjusting valves are installed on the flow dividing pipes; the supporting assembly comprises a supporting rod fixed to the outer wall of the fixing frame, a bearing frame arranged on the supporting rod and a tray located at the bottom of the bearing frame, and a collecting bottle is installed on the supporting assembly. The collector is fixed to a drainage tube connected with a human body, an external negative pressure pump works, a flow dividing tube on the outer wall of the collector performs flow dividing at the moment, and an external drainage hose is fixed to the collecting bottles, so that liquid can be divided into the multiple collecting bottles, and when a container needs to be replaced, one adjusting valve is closed, and the container is taken away for replacement. In the process, the drainage work continues to be carried out, and a good protection effect is achieved.

The drainage ditch comprises a cover plate used for being installed at a water inlet of an external drainage pipeline, the cover plate is provided with a penetrating groove in a penetrating mode, a drainage block is arranged at the center point of the penetrating groove, and the two side walls of the drainage block are connected with the inner walls of the two sides of the penetrating groove respectively. The two ends of the drainage block are in clearance fit with the inner walls of the two ends of the penetrating groove respectively, a drainage gap allowing external water flow to be poured into a water inlet of the external drainage pipeline is formed, and the drainage block is provided with a drainage structure used for guiding the moving direction of external leaves or sundries and guiding the external leaves or sundries to move to the drainage gap through the external water flow. The problem that the drainage efficiency of a traditional drainage ditch is low due to the fact that leaves or sundries are accumulated under the working condition of heavy rain or rainstorm is solved.

A structure for preventing water from entering a vacuum dust collection fan on a floor cleaning appliance comprises the vacuum dust collection fan and a sewage tank combination. The sewage tank combination comprises a sewage tank sewage garbage inlet through which sewage garbage enters the sewage tank; the sewage tank combination comprises an air outlet communicated with an air inlet of the vacuum dust collection fan; an air inlet of the vacuum dust collection fan is provided with a heat dissipation channel; a one-way outward drainage device is arranged between a sewage and garbage inlet of the sewage tank of the sewage tank combination and an air inlet of the vacuum dust collection fan; and the one-way outward drainage device is arranged on a channel through which liquid enters the air inlet of the vacuum dust collection fan from the sewage tank. Water possibly flowing into the heat dissipation channel of the vacuum dust collection fan is timely discharged to the outside through the one-way outward drainage device when passing through the one-way outward drainage device, so that the vacuum dust collection fan is prevented from being damaged due to the fact that water enters the heat dissipation channel to the maximum extent.

The invention provides an efficient drainage anti-blocking dewatering bin which comprises a dewatering bin body, a slag discharging door connected to the bottom side of the dewatering bin body and a water inlet formed in the top side of the dewatering bin body, a filtering assembly is arranged at the joint of the dewatering bin body and an upper external drainage box, and a backwashing assembly is installed on the surface of the filtering assembly. And a backwash header pipe and a drainage header pipe are sequentially arranged on the surface of the bottom side of the dewatering bin from top to bottom. An upper external drainage tank and a lower external drainage tank are mounted on the outer side of the dewatering bin, and meanwhile, a V-shaped filter screen, a placement bottom plate and an upper placement plate are mounted in the upper external drainage tank and the lower external drainage tank, so that replacement is facilitated when the dewatering bin is damaged and needs to be replaced; meanwhile, the upper external drainage tank and the lower external drainage tank which are arranged on the vertical section and the cone section of the dewatering bin can respectively conduct drainage, the external design shortens the water filtering path, and the water filtering net is detachable, so that when the water filtering net is blocked or abraded, the water filtering net can be rapidly replaced without entering the bin body, and the maintenance efficiency is greatly improved.

The embodiments of the present application provide a lithium scrap inerting treatment device and treatment method, and a battery lithium replenishing system. The lithium scrap inerting treatment device of the embodiments of the present application comprises: a first pipeline, comprising an air inlet end, an air outlet end, and an infiltration chamber located between the air inlet end and the air outlet end, the air outlet end is used to connect to an external drainage system, the drainage system is used to drive the gas containing lithium scraps to flow through the first pipeline, the infiltration chamber is used to contain an infiltration liquid to infiltrate the lithium scraps when the gas flows through the infiltration chamber; and a first barrier mechanism, which is arranged in the infiltration chamber and is used to block at least part of the infiltration liquid from flowing out of the air outlet end when the gas flows through the first pipeline. The embodiments of the present application can significantly improve the safety of battery production.

The utility model relates to the technical field of dialysis tools, in particular to a peritoneal dialysis bellyband with a back cushion, which comprises the back cushion, two sides of the back cushion are detachably connected with bellyband bodies, two sides of the front side of each bellyband body are provided with pipeline channels, the middle of the front side of each bellyband body is provided with a pipeline penetrating-out component, and positioning components are arranged outside two sides of each pipeline penetrating-out component. The back cushion comprises a supporting back plate, the two sides of the supporting back plate are connected with supporting side plates, and the dialysis catheter penetrates through the pipeline channel, penetrates out of the pipeline penetrating-out component and is connected with an external drainage pipeline. According to the bellyband with the back cushion for peritoneal dialysis, the back cushion is designed to provide stable back and waist support for a patient, discomfort in the long-time dialysis process is effectively relieved, and therefore the dialysis experience of the patient is improved. Secondly, the pipeline channel and the pipeline penetrating-out component on the bellyband provide an ordered path for the dialysis catheter, smooth penetrating of the catheter is ensured, and risks of displacement, distortion or compression of the catheter are reduced.

The utility model relates to the technical field of doors and windows, in particular to a door and window with an internal drainage function, which is provided with an internal sealing piece on the basis of an existing window frame and an opening sash. The slope inclining towards the outdoor is arranged on the sealing piece, so that rainwater extending into the space between the window frame and the opening sash can effectively flow into the drainage pipe on the window frame along the slope, and the rainwater can be smoothly drained outwards through the design. In addition, the drainage pipe is designed downwards, so that drainage is not affected by front wind pressure, and the drainage smoothness is improved.

The utility model relates to the technical field of water pipes, and discloses a tap water pipe pressure detection external drainage device which comprises a main body assembly and a water pipe, a faucet is fixed to one end of the water pipe, a valve is fixed to the top of the water pipe, a deflation valve is fixed to the top of the valve, and a pressure gauge and a switching assembly are arranged on one side of the deflation valve. The switching device is arranged on the deflation valve and comprises a switching piece, the switching piece comprises a base, the base is fixed to the top of the valve, and an extrusion ring is arranged in the base. The utility model has the beneficial effects that the deflation valve and the pressure gauge are directly switched and can be quickly replaced without being randomly placed aside, so that the loss of parts can be avoided, the parts can be used in time when needed, the normal monitoring and maintenance process of a water pipe system cannot be delayed, the cost and the time cost for re-purchasing are saved, and the working efficiency is improved. And the water pipe operation and maintenance work can be efficiently and smoothly carried out.

The embodiment of the utility model provides a hidden drainage stand column and a viewing shed, and relates to the technical field of viewing sheds. The hidden drainage stand column comprises a stand column body, a drainage channel is formed in the stand column body in the length direction of the stand column body, and a drainage opening is formed in the side face of the bottom of the stand column body and communicates with the drainage channel; a water baffle is hinged to the position of the water outlet, the water baffle can rotate around the hinged position to be switched between a natural state and a stress state, the water baffle is flatly laid on the water outlet in the natural state so as to block the water outlet, and the water baffle deviates from the water outlet in the stress state so as to open the water outlet. According to the hidden drainage stand column and the viewing shed, water can be drained out of the shed, and the influence of drainage on the interior of the shed is reduced; and the water outlet is hidden, so that rats and insects are prevented from entering the greenhouse.

The utility model discloses and provides a self-cleaning drainage filtering device which is arranged between an electric drainage device and an air cylinder, can filter out impurities before the impurities flow into the electric drainage device, and can discharge the impurities through simple operation. The self-cleaning check valve is high in error-tolerant rate and internally has a self-cleaning function, and the problem that the valve element is blocked and stuck can be solved through simple manual operation. The electric drainage valve comprises a valve body element and a valve core element, a valve core mounting cavity, an impurity gathering cavity and a backwashing channel are arranged in the valve body element, an electric drainage connector is arranged at one end of the valve body element and matched with an external drainage device, and a filter screen element is arranged in the impurity gathering cavity and matched with the filter screen element. The valve element is matched in the valve element installation cavity in a floating mode, the upper end and the lower end of the valve body element are an air cylinder connecting end and a valve deck connecting end respectively, the air cylinder connecting end is matched with an external air storage tank, and the valve deck connecting end is matched with the valve deck element. The device is applied to the field of filtering devices.

The utility model relates to a condensate water discharging device of a precision air conditioner, and relates to the technical field of precision air conditioner equipment. The utility model discloses a condensate water discharging device of a precise air conditioner. The condensate water discharging device comprises a supporting frame, a water receiving disc and an anti-seepage box. The water pan is installed below the installation groove, the first drainage pipe and the external drainage pipeline are communicated through the pipeline, collected condensate water can be drained in time, and the water accumulation phenomenon is avoided; meanwhile, by arranging an overflow groove and an overflow discharge pipe, when an external drainage pipeline communicated with the first drainage pipe is blocked and the height of condensate water accumulated in the water pan exceeds the position of the overflow groove, the condensate water can be discharged through the overflow discharge pipe, and the situation that the production safety of a machine room is affected due to overflow of the condensate water is avoided; by arranging the anti-seepage box, collected overflow condensate water can be discharged in time, and the water accumulation phenomenon is avoided.