67results about How to "Guaranteed drainage efficiency" patented technology

The invention discloses an underground pipeline dredging method. The underground pipeline dredging method is characterized in that sludge in a pipeline is gathered to a designated position through a pipeline dredging device and then removed out of the pipeline through external force. By means of the underground pipeline dredging method, the dredging effect of the pipeline can be effectively improved, the amount of sludge in the pipeline is greatly lowered, the occurrence ratio of sludge in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention provides a spiral flow-based silencing drainage pipeline convenient for cleaning, and relates to the technical field of drainage pipelines. The spiral flow-based silencing drainage pipeline convenient for cleaning comprises a water inlet pipe, wherein a spiral pipe is fixedly arranged at the bottom end of the water inlet pipe, a drainage pipe is fixedly arranged at the bottom end ofthe spiral pipe, a fixed leakage plate is fixedly connected to the interior of the water inlet pipe, a rotary leakage plate is rotationally connected above the fixed leakage plate inside the water inlet pipe, and leakage holes are formed in the fixed leakage plate and the rotary leakage plate. According to the spiral flow-based silencing drainage pipeline convenient for cleaning, sewage keeps spiral flow in the drainage pipe so that the sewage can be attached to the wall of the drainage pipe, the impact of the sewage on the pipe wall at an elbow during vertical falling is avoided, the noise during drainage is greatly reduced, the living quality of residents is improved, dirt accumulated on the inner wall of the water inlet pipe can be scraped, and the drainage efficiency of the drainage pipeline is guaranteed.

The invention provides a gas separating device which comprises a separating box, an automatic water draining device and a manual water draining device. The separating box is provided with an air inlet pipe which is used for gas which is to be separated and is mixed with water to enter. An air discharging pipe which is used for separated gas to be discharged is arranged on the upper portion of the separating box. The manual water draining device and the automatic water draining device are respectively connected to the bottom of the separating box. A gas recycling pipe used for recycling gas is connected between the automatic water draining device and the separating box. The invention further provides a gas separating method. Gas and water are separated at the source, gas separating effect is improved, and construction quality and safety are guaranteed.

The invention provides a water pump part, an outdoor unit and an outdoor unit control method. The water pump part comprises a water pump, wherein the water pump is provided with a water inlet; and a second heating element is arranged on the water inlet. According to the water pump part, the outdoor unit and the outdoor unit control method provided by the invention, through arranging a first heating element, a drainage pipe of the water pump part can be heated, so that condensate water in the drainage pipe is prevented from being condensed and frozen, and the drainage efficiency of a unit is ensured; in addition, through arranging a second heating element, the condensate water in the water pump part can be heated, so that the occurrence of the phenomenon that the inner part of the water pump part is frozen so as to cause the damage of the water pump part is prevented; and through arranging a third heating element, the condensate water on a chassis can be prevented from being frozen so as to smoothly flow to the water pump part, so that the unit can drain reliably under the circumstance that the environment temperature is too low (0 DEG C and below), and the reliability of the unit under the circumstance that the environment temperature is too low is further improved.

The invention discloses a sewer line anti-blockage self-cleaning device. The sewer line anti-blockage self-cleaning device comprises a pipe body; multiple stain collecting grooves are formed in the side wall of the pipe body; a communication hole communicating with each stain collecting groove is formed in the side wall of the pipe body; a slide groove in the vertical direction is formed in the internal wall of the pipe body; a slide block is slidingly connected to the interior of the slide groove; a fixing baffle slidingly connected with the internal wall of the pipe body in a sealed manner is fixedly connected to the slide block; and a stretchable elastic piece is fixedly connected to the lower wall of one side, far away from the slide block, of the fixing baffle. The sewer line anti-blockage self-cleaning device has the advantages that a fixing spring drives the fixing baffle to return upwards to bring impurities on a filter screen into the stain collecting grooves when accumulatedwater is formed on the ground, and therefore, the filter screen is kept clean; when a lot of water needs to be drained next time, the operation can be repeated, the filter screen in the process is always in a cleaner state to guarantee the water drainage efficiency; and therefore, stains can be discharged into the stain collecting grooves when water drainage is going to be finished every time; andit only needs to take out an upper cover and clean a stain collecting screen every a section of time.

The invention belongs to the field of municipal facilities, and particularly relates to an anti-blocking rainwater perforated strainer for municipal roads. The strainer comprises a supporting frame, wherein the supporting frame is detachably connected to a cover plate, the cover plate is provided with fixed rods, a movable rod is movably connected between the adjacent fixing rods through a bourdontube, the fixed rods and the movable rod each are provided with a cutting blade, the movable rod is rotationally connected to a water collecting tank through a guide rod, and the end, far away from the cover plate, of the water collecting tank is rotationally connected to a bottom plate. According to the anti-blocking rainwater perforated strainer for the municipal roads, a water inlet of the strainer is effectively prevented from being blocked by impurities when working during rainwater weather, the discharging efficiency of rainwater is improved, and normal operation of a traffic order is guaranteed.

The invention discloses a device for draining and reinforcing the slope of an existing expressway. The device comprises a drain pipe, a plurality of positioning mechanisms, an anchor rod, a pluralityof dredging mechanisms, a baffle plate and a handle, wherein one end of the drain pipe is cylindrical, and the other end of the drain pipe is tabular; a plurality of drain branch pipes are arranged inthe drain pipe; one of the drain branch pipe is provided with a corresponding positioning mechanism; each of the positioning mechanisms comprises two support rods and two sliding blocks; a conical guide block is arranged at the end part of the anchor rod; and the dredging mechanisms are positioned at the other end of the anchor rod. According to the device, the acting force of the anchor rod is utilized to completely strut the drain pipe open, the drain branch pipes which can stretch out are arranged in the drain pipe, and the dredging mechanisms which can wipe the drain pipe are arranged inthe drain pipe, so that the draining speed of ponding in the slope can be greatly increased; and in addition, the dredging mechanisms can clean the interior of the drain pipe regularly, so that soil is prevented from being accumulated in the drain pipe to avoid affecting the water draining effect.

The invention discloses a flower greenhouse bracket, and relates to the technical field of flower greenhouses. The bracket comprises drainage channel steel and bases; a bearing base is fixedly mountedin the middle of the top of each base, a rotating drum is fixedly connected to the top of each bearing base, a mounting sleeve is arranged in the middle of the bottom of the drainage channel steel, and a retractable rod is inserted in the bottom of each mounting sleeve. By means of the flower greenhouse bracket, a worker conveniently operates the bracket to adjust the lifting height of the bracket, the convenience of the bracket is improved, the labor intensity of the worker is greatly reduced, the bracket is conveniently mounted and dismounted, the later maintenance is facilitated, the function of lifting adjustment is achieved, the worker can change different heights according to the demands of actual situations, the later storage of the greenhouse bracket is facilitated, supporting plates different in specification and size are conveniently mounted, the rigidity and toughness are improved, the collapse of a greenhouse is prevented, the clamping effect is good, and the connection tightness and stability are improved.

The invention discloses a movable type drainage vehicle. The movable type drainage vehicle includes an automobile chassis, a coverage member, and a movable type tracked vehicle, wherein the movable type tracked vehicle comprises a power system, a travelling system, an enclosed buoyancy tank, a transfer case, a water pump system, a hydraulic system, a load carrying type structure and a remote control system; the movable type tracked vehicle is loaded through the automobile chassis; and the coverage member is arranged at the peripheral position, corresponding to the movable type tracked vehicle,on the automobile chassis. The movable type drainage vehicle can implement the drainage function without being restricted by the geographical terrain, greatly saves the drainage preparation time, improves the operation efficiency, effectively prevents the pipeline from being blocked, makes the drainage work more convenient and safer, can be used for amphibious use, and has a wider operation range.

The invention relates to the field of substation switch cabinets, in particular to a switch cabinet heat dissipation device for transformer substations in cold regions. The device comprises a device body, and a heating plate is fixedly mounted at the lower end in the device body. A fitting block is movably mounted in the inner wall of the lower end of the device body. A moving plate is movably mounted outside the lower end of the device body, and an air inlet groove is formed in the moving plate. The lower end of the heating plate is inverted V-shaped, and when a fan is started and external air enters the device body through an air inlet channel, the external air can be in contact with the heating plate which is heated to above zero DEG C, therefore, the overall temperature of the airflowentering the device body is increased, and damage caused by too low temperature during contact with the internal electrical elements of the device body is avoided. Meanwhile, through an inclined surface at the lower end of the heating plate, water vapor generated during heating of cold air flow can be condensed at the lower end of the heating plate, so that water generated during heating of cold air cannot be in contact with the electrical elements in the device body.

The invention relates to a water gate for intercepting garbage in a water conservancy project. The water gate comprises a water gate body and a conveying roller bed, wherein the conveying roller bed is inserted into wing walls on the two sides of a river channel in a rotating mode, two sets of shaft bodies are rotationally connected to the conveying roller bed, two sets of net chains are rotationally connected to the two sets of shaft bodies in a sleeving mode, a plurality of sets of loading hoppers are fixed on the two sets of net chains, the inclined lower end of the conveying roller bed faces the upstream of the water gate body, and a foam plate is fixed at the inclined lower end of the conveying roller bed; a conveying belt stretching across the river channel is installed on the river channel at the upstream position of the water gate body, a power device for driving the conveying roller bed and the conveying belt to rotate is installed on the ground, and the net chains continuously rotate anticlockwise, so that the loading hoppers grab and convey garbage floating on the water surface; and the conveying belt is located at the inclined upper end of the conveying roller bed, and the garbage is scattered on the conveying belt and is continuously conveyed to the ground on one side of the river channel. According to the water gate, the cleaning operation of the garbage in the river channel is realized, the probability that the garbage is blocked at the position of the water gate is reduced, and the normal drainage efficiency of the position of the water gate is guaranteed.

The invention relates to a novel underground comprehensive pipe gallery transportation system and belongs to the field of underground pipe galleries. The novel underground comprehensive pipe gallery transportation system comprises a pipe gallery body. The pipe gallery body comprises a pipe gallery channel, a transportation channel, a pipeline channel and a drainage channel. A plurality of filter plates are arranged in the drainage channel, the filter plates are arranged uniformly in a spaced manner along the length direction of the drainage channel, a plurality of filter holes are uniformly formed in the filter plates, fixed plates are arranged on the filter plates, the panels of the fixed plates are vertical to those of the filter plates, a filter space for filtering silt is formed in front of the fixed plates, the filter plates and the drainage channel, scrubbing pipes are arranged on the fixed plates, one ends of the scrubbing pipes are located in the filter space while the other ends of the scrubbing pipes penetrate the drainage channel to the ground, and a decontamination pump is arranged on the scrubbing pipe. The novel underground comprehensive pipe gallery transportation system has the effect of treating silt and sludge in the drainage channel conveniently.

The invention belongs to the field of municipal facilities and particularly relates to an anti-blocking rainwater strainer for municipal landscape. The anti-blocking rainwater strainer comprises a supporting rack, the supporting rack is detachably connected with a cover plate, the cover plate is horizontally and slidably connected with a plurality of sets of clapboards, the adjacent clapboards areall rotatably connected with floating plates through guide rods, the floating plates are in coordination connection with a water collection tank, the water collection tank is slidably connected withthe supporting rack, the end, away from the cover plate, of the water collection tank is rotatably connected with trigger parts, and the trigger parts are in coordination arrangement with the floatingplates. By means of the arrangement of the anti-blocking rainwater strainer for the municipal landscape, fallen leaves and other impurities can be prevented from blocking a water inlet of the rainwater strainer when the rainwater strainer performs the water discharge work, the rainwater discharge efficiency is improved, and normal running of the traffic order is guaranteed.

The invention discloses a coal bed gas drainage and gas recovery device, which can greatly improve the efficiency of water pumping, ensure the reliable operation of a water pump, and when the water ispumped in a prior mode, too low water level can cause damage to the water pump, and meanwhile, the water in an extraction hole can be extracted neatly, that the extraction hole is in a state of no water or low water level is always guaranteed to ensure the effect and efficiency air exhaust. According to the invention, when the drainage is performed, the water is collected into a secondary water storage barrel by using a rotary lifting mode, and then the water in the secondary water storage barrel is collected to a primary water storage barrel, so that the drainage is performed through a drainage pump, while the drainage efficiency is improved, the operation time of the drainage pump with large power is reduced, the reliability is ensured, and meanwhile, the drainage efficiency and drainage degree in the extraction hole can be ensured.

The invention discloses a well lid mounting structure with a self-locking function for municipal drainage. The well lid mounting structure comprises a well lid main body, a control assembly and self-locking assemblies, wherein a supporting seat is arranged below the outer edge of the well lid main body; a panel is mounted on the middle position of the upper surface of the well lid main body; a solar cell panel is fixedly arranged at the inner side of the panel; the lower surface of the well lid main body is connected with a guide plate; the control assembly is mounted on the middle position inside the guide plate; storage battery packs are arranged at left and right sides of the control assembly; a baffle plate is fixedly arranged below the guide plate; a combustible gas detector is arranged on the lower surface of the baffle plate; the self-locking assemblies are separately mounted at left and right sides of the guide plate; lifting assemblies are arranged at left and right sides of the upper surface of the well lid main body; water guide holes are uniformly formed in the outer side of the panel; and filter screens are mounted inside the water guide holes. The self-locking assemblies can be utilized to effectively prevent the well lid main body from being stolen, so that financial loss is reduced.

The invention discloses a municipal road drainage channel capable of preventing garbage blockage. The drainage channel comprises a main body, a water channel penetrating up and down is formed in the main body, a triggering mechanism located in the main body is arranged on the left side of the water channel, a power mechanism is arranged on the lower side of the triggering mechanism, a filtering mechanism is arranged on the upper side in the water channel, the filtering mechanism comprises a well lid cavity formed in the left side of the water channel in a communicating mode, a well lid shaft is rotatably connected between the front wall and the rear wall of the upper side of the well lid cavity, and a well lid is fixedly connected to the outer circle face of the well lid shaft. According to the drainage channel, the drainage channel can be ensured not to be blocked in rainy days, and when some roadside garbage blocks the roadside drainage channel, people do not need to remove the garbage in a heavy rain, the garbage can be automatically transplanted into an underground garbage can, and the garbage in the garbage can poured out after the heavy rain, so that the drainage efficiency of the roadside drainage channel can be guaranteed, and the roadside water accumulation is prevented.

The invention relates to a water and sewage drainage facility for an industrial recirculating aquaculture system, which is suitable for respectively draining the circulating water and sewage containing large particles such as residual lure, feces and the like in a closed recirculating water system which is used for culturing fish and shrimps. A central culture pond water drainage pipe of the facility is arranged in the center of the culture pond; sewage drainage holes are arranged at the bottom of the center of the culture pond; the central culture pond water drainage pipe is fixed above the sewage drainage holes, and the pipe wall of the water drainage pipe is provided with small drainage holes; the upper end of the central culture pond water drainage pipe is connected with a filter cap,and the lower end thereof is a spigot-and-socket joint pipe that extends into a sewage drainage groove; the culture water flows into a water treatment pipe network outside the pond through the water drainage pipe; a sewage drainage clearance control panel is installed at the bottom of the central culture pond water drainage pipe, and the clearance between the panel and the bottom of the pond can be adjusted by rotating the sewage drainage clearance control panel; the sewage at the bottom of the culture pond flows into the sewage drainage groove through a clearance between the sewage drainage clearance control panel and the pond bottom and then flows out of the system. The facility has the characteristics of no energy consumption, automatic drainage of culture water, independent water and sewage drainage, practicality, convenience and the like.

The invention relates to a novel linear drainage ditch structure for permeable drainage pavement. The novel linear drainage ditch structure comprises a plurality of ditch bodies which are connected end to end, wherein each ditch body comprises a drainage ditch main body and a gap type cover plate which is provided with a gap; the gap type cover plate covers the top of the drainage ditch main body;a rotating shaft, which extends in a length direction of the drainage ditch main body, is rotatably arranged in the drainage ditch main body, and the rotating shaft and the gap are arranged in a mutually staggered mode; a plurality of driving components, which are arranged in a spaced mode in the length direction of the rotating shaft, are arranged on the rotating shaft; and each driving component comprises a base which is fixedly arranged on the rotating shaft and a plurality of fan blades which are uniformly distributed along the axis of the rotating shaft, wherein one end of each fan bladeis fixedly arranged on the base and the other end of each fan blade can rotate to be under the gap along with the rotating shaft. According to the novel linear drainage ditch structure provided by the invention, the accumulation amount of silt at the bottom of the drainage ditch main body can be reduced, so that the drainage efficiency of the ditch bodies is guaranteed.

The invention discloses a drainage device based on underground ore extraction. The device comprises a first pipe body, a second pipe body is arranged on one side of the first pipe body, a clamp is arranged between the first pipe body and the second pipe body fixedly, first seal bases are fixedly arranged on the outer portions of one ends of the first pipe body and the second pipe body, second sealbases are fixedly arranged on the outer portions of the other ends of the first pipe body and the second pipe body, anti-corrosion bases are fixedly arranged on the inner walls of the first pipe bodyand the second pipe body, the clamp comprises a fixed ring, the clamp is arranged, connection stability of a bolt and a nut is improved, connection loosening of the bolt and the nut can be avoided, connection loosening between the first pipe body and the second pipe body can be avoided, falling off of the first pipe body and the second pipe body is avoided, normal drainage work is ensured, through the first seal bases, connection seal between the first pipe body and the second pipe body is improved, liquid leakage can be avoided, and the drainage efficiency is ensured.

The invention discloses a municipal road drainage system. The municipal road drainage system comprises a drainage assembly, wherein a first step groove and a drainage well are sequentially formed in the upper surface of a road main body from top to bottom, a drainage cover is arranged in the first step groove, and a plurality of flow holes are formed in the drainage cover; a plugging mechanism is arranged in the drainage well, the plugging mechanism comprises a plugging assembly and a control assembly, the plugging assembly comprises a fixing rod, a fixing plate, a first spring, a sealing plate and an inserting block, the fixing rod penetrates through the sealing plate and is connected with the sealing plate in a sliding mode, and the top of the sealing plate abuts against the bottom of the drainage cover; and the control assembly is used for driving the top of the sealing plate to be separated from the bottom of the drainage cover during rainfall. According to the scheme, when rainfall does not occur, under the elastic force action of the first spring, the top of the sealing plate abuts against the bottom of the drainage cover, the inserting block is matched with the flow holes in an inserting mode, so that the probability that impurities such as dust enter the flow holes and block the flow holes is reduced; and when rainfall occurs, the control assembly controls the sealing plate to be far away from the drainage cover, so that the inserting block is separated from the flow holes, and the drainage work is facilitated.

The invention provides an assembled water storage photovoltaic pavement, which includes electricity generating brick bodies including cover bodies made of transmitting materials, and bases oppositelyarranged with the cover bodies to define water storage cavities, wherein a first open hole for allowing rain water to pass through is formed in each cover body; each base is made of seepy material; asolar panel is accommodated inside the water storage cavity; the electricity generating brick bodies are arranged according to rules to form the pavement main body; a clearance is formed between the adjacent electricity generating brick bodies to allow water to flow into the ground / or seep into each water storage cavity. The structure can effectively solve the problem of incapability of surface water circulation caused by poor water transmitting function in the photovoltaic pavement in the prior art.

The invention relates to the technical field of muck side slope drainage systems, in particular to an anti-blocking drainage pipe for a muck side slope. The anti-blocking drainage pipe for the muck side slope comprises a drainage pipe body which is obliquely arranged. The drainage pipe body is formed by connecting a plurality of drainage pipe sections end to end. A large-aperture filtering troughis arranged at the end of the drainage pipe body, a small-aperture filtering trough is arranged on the drainage pipe body, the small-aperture filtering trough is connected with the drainage pipe bodythrough connecting threads, the small-aperture filtering trough and the large-aperture filtering trough are arranged in a spaced mode, a hollow portion is formed between the small-aperture filtering trough and the large-aperture filtering trough, a water inlet pipe is arranged at the top of the inner wall of the drainage pipe body, and the water inlet pipe is fixed along the top of the inner wallof the drainage pipe body. The anti-blocking drainage pipe for the muck side slope is simple in structure, convenient to install and capable of meeting drainage requirements under the situation that the drainage amount is large or small, the drainage pipe can be effectively prevented from being blocked, the drainage pipe can be cleaned even under a blocking situation, and drainage efficiency is guaranteed.

The invention discloses a drainage structure of abridge panel. The structure comprises a bridge deck slab and drainage pipes; chutes are formed in the four corners of the upper end of the bridge deckslab, the drainage pipes are arranged on the inner walls of the chutes, a pipe cover is arranged at the upper end of each drainage pipe, a connecting ring plate is arranged in the middle of the upperend of each pipe cover, and a filter screen is arranged in the middle of each connecting ring plate; fixing bolts are arranged on the periphery of each connecting ring plate, a water storage cavity isformed in the middle of each pipe cover, a connector is arranged at the lower end of each pipe cover, a pipe body is arranged at the lower end of each drainage pipe, the pipe body is formed on each drainage pipe, and water guide grooves are formed in the two sides of the upper end of the bridge deck slab. The drainage structure has the beneficial effects that by arranging the drainage pipes, a U-shaped groove and a U-shaped plate, the dual drainage function can be achieved, the drainage efficiency can be guaranteed, by arranging a filter screen, sundries are effectively prevented from being blocked in the drainage process to guarantee that the drainage process is smoothly conducted, and the practicability is good.

The invention belongs to the technical field of drainage devices, in particular to a drainage system for an overmining area of a coal mine. The drainage system for the overmining area of the coal mineprovides the following scheme for solving the problems that an existing drainage device cannot well treat soil residues, blockage during drainage is likely to be caused, and the drainage effect is greatly influenced. The drainage system for the overmining area of the coal mine comprises a box body; a plurality of bottom wheels are symmetrically and fixedly mounted at the bottom of the box body, aresidue filtering opening is formed in one side of the box body, a baffle is movably mounted in the box body, a filter screen is fixedly mounted on the baffle, a first connecting plate is slidably mounted at the bottom of the baffle, a first fixing plate is fixedly mounted on the inner wall of one side of the box body, the bottom end of a telescopic rod is fixedly mounted at the top of the firstfixing plate, the top end of the telescopic rod is movably mounted at the bottom of the first connecting plate, and an inclined plate is fixedly mounted at the top of the first fixing plate. The drainage system is convenient to use and move, water and soil can be effectively separated during drainage, residual filter residues are discharged, and the drainage efficiency is guaranteed.

The invention discloses an assembled road drainage device for photovoltaic projects of mountain regions. The device comprises a section bar cabin body, wherein section bar cabin sub-bodies, a base layer, a section bar plate body and a surface layer are sequentially arranged in the section bar cabin body from bottom to top; a groove is longitudinally formed along the section bar plate body, one endof the section bar cabin body is provided with a through hole, and the through hole is communicated with the groove. By combining the first section bar cabin sub-body, the second section bar cabin sub-body, a first section bar plate sub-body and a second section bar plate sub-body with a cement concrete base layer and a water-permeable concrete surface layer, the construction process of a drainage project of a factory area can be accelerated, wherein the first section bar cabin sub-body, the second section bar cabin sub-body, the first section bar plate sub-body and the second section bar plate sub-body are prefabricated in standard unit length. There is no need to excavate lateral drainage ditches in the open air, and the traffic volume on a road can be increased to effectively utilize the space; by stereoscopically intersecting with a high-voltage current collecting circuit arranged on the inner side of the road, the construction width and earthwork amount of the road are reduced, and the assembled road drainage device can be reused.

The invention discloses an anti-blocking well lid for a sponge city. The anti-blocking well lid comprises a well body, wherein a well lid body is welded and fixed to the well body, a water guide opening is formed in the well lid body and penetrates through the well lid body, a straight rod is slidably connected to the center of the well lid body and penetrates through the well lid body, a metal plate is welded and fixed to the end, located above the well lid body, of the straight rod and abuts against the surface of the well lid body, a piezoelectric medium is arranged in the metal plate, a battery is arranged in the well lid body, and the piezoelectric medium communicates with the battery through a wire. The anti-blocking well lid has the advantages that when the water guide opening is blocked, the water level rises, thus water enters a box through a water inlet pipe, the straight rod rises, a trigger switch is started, a water pump is started, garbage is washed away, and the water drainage efficiency is ensured; and by utilizing the characteristic that the environment temperature is too high in summer, a liquid bag expands, thus the straight rod rises, water flow is sprayed out from a water drainage pipe, and thus the pavement is cooled.

The invention relates to the field of bathroom accessories, in particular to a plug structure of a bathroom container. The plug structure is characterized in that a plug body is hinged to the upper port of the draining pipeline of the container, a drive device for driving the plug body to rotate is arranged on the container, and the plug body comprises a body part and an inflating part arranged on the outer side of the body part to allow the plug body to rotate smoothly; when the plug body rotates, an air pressure control device inflates and deflates the inflating part at the same time. By the arrangement, the plug structure has the advantages that manual taking and placing of the plug body are not needed; under a water storage state, the inflating part of the plug body expands and is arranged in the upper port of the draining pipeline in an interference fit manner to guarantee a sealing effect; under a water draining state, the plug body is accommodated in an accommodating groove, the flow of the draining pipeline is unaffected, the draining efficiency of the bathroom container is guaranteed, and cleaning of the bathroom container is unaffected due to the fact that the plug body is accommodated in a hidden manner.

The invention provides a dehumidifier and a control method. The dehumidifier comprises a water pan and a drainage device, and the drainage device is arranged in an opening of the water pan and comprises drainage blades and a driving mechanism; the first ends of the multiple drainage blades are fixed to the side wall of the opening, and the second ends of the multiple drainage blades define a drainage opening; the driving mechanism is in driving connection with the second end parts of the plurality of drainage blades; the structure of the drainage port is not fixed, and the shape of the drainage blade can be changed according to actual needs to adjust the drainage amount; when the required water discharge amount is small, the driving mechanism drives the plurality of water discharge blades to be in a first working state, and the water pan normally discharges water; when the needed water drainage amount is large, the driving mechanism drives the multiple water drainage blades to be in the second working state, the water pan drains water rapidly, smoothly and timely, the water drainage efficiency is high, and the dehumidification efficiency of the dehumidifier is guaranteed; the problems that a drainage port is fixed in structure, the drainage amount cannot be adjusted, and the drainage efficiency is low are solved. And the drainage impact force is large, and accumulated dust on the wall surface of the water pan can be cleaned.

The invention discloses a coal bed gas drainage and gas recovery device, which can greatly improve the efficiency of water pumping, ensure the reliable operation of a water pump, and when the water ispumped in a prior mode, too low water level can cause damage to the water pump, and meanwhile, the water in an extraction hole can be extracted neatly, that the extraction hole is in a state of no water or low water level is always guaranteed to ensure the effect and efficiency air exhaust. According to the invention, when the drainage is performed, the water is collected into a secondary water storage barrel by using a rotary lifting mode, and then the water in the secondary water storage barrel is collected to a primary water storage barrel, so that the drainage is performed through a drainage pump, while the drainage efficiency is improved, the operation time of the drainage pump with large power is reduced, the reliability is ensured, and meanwhile, the drainage efficiency and drainage degree in the extraction hole can be ensured.