153results about How to "Improve drainage efficiency" patented technology

This application relates to a roof drainage device, comprising a mounting frame, a filter screen, a drain pipe, and a cutting assembly. The drain pipe is vertically arranged and penetrates the roof. The mounting frame is disposed at the inlet of the drain pipe. The filter screen is disposed on the mounting frame and has several elongated filter holes. The cutting assembly includes two cutting blades and a driving unit. The two cutting blades are respectively located on both sides of the filter screen and are slidably connected to the mounting frame. The driving unit is used to bring the two cutting blades closer together and through the filter holes. This application has the effect of improving roof drainage efficiency.

The utility model discloses a washing machine drainage pump water inlet assembly with a self-cleaning function. The washing machine drainage pump water inlet assembly comprises a drainage pump body. A water inlet pipe is installed at the input end of the draining pump body, a filter screen ring is rotationally installed at the end, away from the draining pump body, of the water inlet pipe, and a transmission groove is formed in the outer surface of the filter screen ring; according to the sewage draining pump, impurities such as hair, fibers and paper scraps in sewage can be intercepted through the filter screen ring, the impurities are prevented from directly entering the draining pump main body through the water inlet pipe, and the draining pump main body is prevented from being damaged due to blockage of the impurities; the scraping brush can be in transmission with the inner core of the transmission groove to drive the filter screen ring to rotate between the water inlet pipe and the connecting pipe, at the moment, the scraping brush can scrape off impurities intercepted on the filter screen ring, it is prevented that too much impurities are accumulated on the filter screen ring to affect filtering and water flow passing, and therefore the impurity cleaning capacity of the drainage pump water inlet assembly is improved, and it is guaranteed that a drainage channel is unblocked; the drainage efficiency is improved, and later use of personnel is not affected.

The utility model relates to the technical field of tires, and provides a super high performance car tire, comprising: a carcass; a plurality of longitudinal main drainage grooves are arranged on the tread of the carcass; the inner side of the tread of the carcass has an inner tread pattern area, and the outer side has an outer tread pattern area; a plurality of first auxiliary drainage grooves and a plurality of second auxiliary drainage grooves are alternately arranged on the inner tread pattern area; a knife groove is also arranged between adjacent first auxiliary drainage grooves and second auxiliary drainage grooves; a plurality of third auxiliary drainage grooves and a plurality of fourth auxiliary drainage grooves are alternately arranged on the outer tread pattern area. The utility model can improve the dry and wet grip and drainage performance, reduce the risk of hydroplaning, and improve the wet driving safety and driving comfort.

The utility model discloses a base protection device for transformer substation construction, which comprises a supporting seat and a protection plate, the supporting seat is provided with the protection plate, the supporting seat is provided with a first clamping block, the bottom of the protection plate is provided with a first clamping groove, the protection plate is provided with a second clamping block matched with the first clamping groove, and the second clamping block is provided with a second clamping groove matched with the second clamping groove. An auxiliary plate is arranged on the protection plate, a second clamping groove is formed in the lower portion of the auxiliary plate, and a limiting piece is connected to the surface of the protection plate in a penetrating mode. According to the base protection device for transformer substation construction, the protection plates are spliced according to the height of the base, so that the device is suitable for transformer substation bases of different specifications, the universality and adaptability of the device are greatly improved, the problem that the transportation cost is increased due to supporting of a fixed frame is solved, overall installation is rapid and convenient, and the practicability is high. The construction difficulty is reduced, the construction time is shortened, and the problem that the buffer structure is prone to abrasion when installed in soil is solved.

The utility model relates to the technical field of generator equipment, and discloses a generator set drainage device with a water accumulation prevention structure, which comprises a waterproof cover, a plurality of pulleys are fixedly connected in the waterproof cover, a generator base is slidably connected in the waterproof cover, a first sliding chute is arranged outside the generator base, and a second sliding chute is arranged outside the generator base. The exterior of the generator base is fixedly connected with a diesel engine, the exterior of the diesel engine is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with a drainage mechanism, the exterior of a waterproof cover is fixedly connected with a fixing block, and the exterior of the fixing block is fixedly connected with an adjusting mechanism. And the drainage mechanism comprises a drainage pump. According to the anti-blocking device, the anti-blocking plate is driven by the drainage pump to move, so that the anti-blocking plate rotates in the connecting pipe, then the air cylinder drives the push plate to move, the drainage pump is automatically started, damage of accumulated water to the generator set is avoided, and safe and stable operation of equipment is ensured.

The invention discloses an intelligent drainage anti-collapse support construction system for a deep foundation pit, and relates to the technical field of foundation pit construction, the intelligent drainage anti-collapse support construction system comprises a first support baffle and a second support baffle, the first support baffle and the second support baffle are hinged and fixed through a positioning clamping mechanism, and a support bottom plate is hinged to the end, away from the second support baffle, of the first support baffle; through the hinged design of the first supporting baffle, the second supporting baffle and the supporting bottom plate, the adjustable inclined struts and the multi-point anchoring design are combined to enhance the overall stability of supporting, so that the whole supporting structure is firm and stable in use and can be folded and stored when not in use, transportation and on-site carrying are greatly facilitated, and the construction cost is reduced. The water storage cavity integrated in the second supporting baffle, the liquid level sensor and the drainage pump form an intelligent drainage system, automatic drainage is achieved through the rotatable double-arc-shaped filter screen plate and the liquid level sensor, uninterrupted operation of drainage operation and convenient cleaning of the filter screen are achieved, blockage is effectively prevented, and the drainage efficiency and reliability are improved.

This invention relates to the field of condensate recovery technology, specifically a closed-loop condensate recovery device, comprising a tank with a water outlet pipe at the bottom. The tank is divided into three zones—a central steam buffer zone, a lower condensate collection zone, and an upper negative pressure condensation zone—by two horizontal baffles. This closed-loop condensate recovery device eliminates the need for additional power components such as pumps. It relies on the downward pressure difference of the condensate in the negative pressure condensation zone and the negative pressure generated by steam condensation as the drainage driving force. It fully utilizes the system's own energy, eliminating dependence on external power and significantly reducing operating energy consumption. The condensate introduced by the downward pressure drainage pipe creates a downward impact, which, combined with the negative pressure introduced by the negative pressure venting pipe, forms a dual drainage drive, providing stronger power and higher efficiency than traditional single gravity drainage. Simultaneously, it drives the condensate in the pipe to repeatedly flush, comprehensively covering the entire pipe area and thoroughly removing impurities and silt from different sections, offering better anti-clogging performance than unidirectional disturbance.

The utility model discloses a waterproof wear -resisting type slipper relates to slipper technical field, including sole, the top surface bonding of sole has vamp, the top surface of sole is equipped with first drain and second drain, the top of sole is equipped with antiskid salient, the both sides of sole are bonded with first wear -resisting piece, the outer wall mounting of first wear -resisting piece has second wear -resisting piece, one side of first wear -resisting piece is equipped with third wear -resisting piece. This waterproof wear -resisting type slipper is provided with first drain and second drain, when the slipper is contacted with ponding, the user lifts the foot, and the water stain can be discharged quickly through first drain and second drain, prevents the water stain to remain, influences the comfort of wearing, and can first wear -resisting piece, second wear -resisting piece and third wear -resisting piece carry out quick positioning installation dismounting, is convenient for maintenance, and through first wear -resisting piece, second wear -resisting piece and third wear -resisting piece can obviously promote the wear -resisting capacity of slipper.

A tray for yellow finish machining relates to the technical field of yellow finish machining and comprises a tray bottom (1) and a tray edge (2) extending outwards along the edge of the tray bottom (1), the section of the tray bottom (1) is in a continuous wave shape, wave crest portions and wave trough portions which are distributed alternately are formed, a plurality of liquid outlet holes (11) are vertically formed in the wave trough portions, a liquid collecting groove (12) is further formed in the lower side of the tray bottom (1), and a liquid outlet (121) is formed in one side of the liquid collecting groove (12). An adjusting assembly (3) is arranged on the side, opposite to the liquid outlet (121), of the plate edge (2), and the adjusting assembly (3) is arranged to be capable of adjusting the inclination angle of the plate bottom (1). Polygonatum sibiricum materials are supported through the wave crest parts of the plate bottom, the situation that liquid outlet holes are blocked due to material covering of a traditional plane plate bottom is avoided, and juice and water vapor generated in the steaming process can be rapidly discharged through the liquid outlet holes of the wave trough parts; the adjusting assembly can dynamically adjust the inclination angle of the tray bottom, so that liquid flows to the liquid outlet along the liquid collecting tank and flows out, the liquid discharging efficiency is remarkably improved, and the follow-up sun-curing quality of rhizoma polygonati is improved.

The utility model relates to the technical field of clothes treatment, in particular to a clothes treatment device and combined clothes treatment equipment. By arranging the adapter, the first air port and the second air port are respectively communicated with the corresponding cylinder bodies, so that the first water outlet and the second water outlet are respectively consistent with the internal air pressure of the corresponding cylinder bodies, and the two washing cavities can operate simultaneously or independently; the siphonage phenomenon of the two drainage pipes which are draining water due to the fact that internal air is emptied is avoided, and the problem of sewage reverse flow caused by the siphonage phenomenon is prevented. In addition, the first drainage pipe, the second drainage pipe, the first air pipe and the second air pipe can be conveniently connected, supported and positioned through the adapters, the layout of the drainage assembly is more compact through the adapters, the pipeline length is reduced, the water flow resistance is reduced, and the drainage efficiency is improved.

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 a greening structure suitable for a steep soil slope. The method is suitable for the technical field of slope greening engineering. According to the technical scheme, according to the greening structure suitable for the steep soil slope, the surface of the steep soil slope is excavated to form a slope protection construction face, the slope protection construction face is covered with a slope protection structure, and the greening structure comprises drainage holes which are drilled in a slope body of the steep soil slope, and the multiple drainage holes are arranged at intervals in a multi-layer mode along the slope face of the slope; the planting holes are drilled in the slope surface of the steep soil slope, the multiple planting holes communicate with the multiple drainage holes in a one-to-one correspondence mode, and the ends, away from the drainage holes, of the planting holes penetrate through the slope protection structure; the planting tanks are arranged in the planting holes, are used for planting green plants and can discharge excessive water inside; and the drainage floral tube is arranged in the drainage hole and can collect surplus water in the slope body and guide the water into the planting tank so as to irrigate green plants.

The utility model relates to the technical field of appliance cleaning, in particular to a material barrel cleaning device which comprises an outer frame body, a cleaning table plate, a supporting column used for supporting the cleaning table plate and a flow guide supporting column used for being communicated with an external drainage system, a plurality of spraying heads used for spraying cleaning water are arranged on the outer frame body in a sliding mode, and the spraying heads are arranged on the outer frame body in a sliding mode. Any spraying head is arranged above the cleaning table plate, the cleaning table plate inclines towards the upper right relative to the horizontal plane, a drainage hole is formed in the lower end of the left side of the cleaning table plate, the interior of the flow guide supporting column is communicated with the drainage hole to form a drainage channel, and the positions of the spraying heads can be adjusted according to needs in the using process; therefore, the material barrel is subjected to water spraying cleaning operation; sewage on the cleaning platform plate can quickly flow to the drainage holes under the action of gravity and then is discharged through the flow guide supporting columns, and compared with a traditional cleaning mode, the drainage efficiency is effectively improved, the situation that water is accumulated on the cleaning platform is reduced, and the possibility of secondary pollution of the material barrel is reduced.

The utility model relates to the related technical field of aluminum alloy windows, in particular to a safe sealing type aluminum alloy window which comprises a window frame, a window sash body, a lock body, a hollow glass body, an elastic element, a multi-layer sealing component, a water baffle and a drainage component. According to the safe sealing type aluminum alloy window, the window sash body is locked or opened through the lock body, the air tightness and the waterproofness of the window in the closed state are guaranteed through the elastic element and the multiple layers of sealing components, the water baffle and the drainage component further prevent rainwater from invading, and accumulated water is drained in time; therefore, the overall usability and the service life of the window are improved.

This utility model discloses a pull-out grate, belonging to the field of grate technology. The pull-out grate includes an outer frame with a groove; a grate surface with protrusions connected to the grooves; and the grate surface slidably connected to the outer frame via the protrusions. The grate has a simple structure, is easy to operate, and the outer frame and grate surface are freely detachable and can be installed as a single unit on-site. The grille on the grate surface filters leaves, garbage, and other debris. When cleaning is required, simply pull the hole to separate the grate surface from the outer frame, pushing the grate surface into the groove of the base. Opening is unaffected by water pressure, eliminating the need for large opening tools, allowing for rapid opening and closing, facilitating quick debris removal, accelerating drainage efficiency, and aiding in grate maintenance. Furthermore, the pull-out grate does not need to be placed on the road when open, avoiding obstruction and ensuring road safety.

The utility model relates to experimental consumables, in particular to a perforated plate for zebra fish culture, which comprises a plurality of groups of culture holes, each group of culture holes comprises a plurality of culture holes, adjacent culture holes in the same group are communicated through micropores, the diameters of the micropores are matched with those of eggs of zebra fish, and the diameters of the micropores are matched with those of the eggs of the zebra fish. And when the amount of the culture medium added into the culture holes is a preset volume, the culture medium just enters the micropores. By arranging the micropores, the old culture medium does not need to be sucked away first and then the new culture medium is quantitatively added, only the new culture medium needs to be continuously added on the basis of the old culture medium until the culture medium enters the micropores, at the moment, the volume of the culture medium in the culture holes is close to the preset volume, and the excessive part can be automatically transferred to the communicated adjacent culture holes and does not need to be sucked out manually; and the roes with large direct drop cannot pass through the micropores, so that the operation difficulty of exposing and culturing the roes is reduced by adopting the structure.

The utility model relates to the technical field of indoor decoration waterproofing, in particular to an indoor decoration waterproof structure which comprises a floor slab, a waterproof layer arranged on the surface of the floor slab, a permeable layer arranged on the surface of the waterproof layer, a cement mortar leveling layer laid at the top end of the permeable layer, and ceramic tiles laid at the top end of the cement mortar leveling layer. The bottom end of the floor is fixedly connected with a sewer pipe, the top end of the sewer pipe is fixedly connected with a first filter screen, the top end of the first filter screen is provided with a floor drain, and the bottom end of the floor drain is fixedly connected with a drainage pipe. The drainage pipe is inserted into the middle of the first filter screen, sewage on the surface of the ceramic tile can flow into the sewer pipe through the drainage pipe, water flowing into the surface of the waterproof layer through ceramic tile gaps can flow into the sewer pipe through the first filter screen, and therefore the effect that drainage on the surface of the waterproof layer can be achieved while drainage on the surface of the ceramic tile is not affected is achieved.

The controllable drainage pipeline based on water supply and drainage equipment production comprises a bottom box, a through hole is formed in the outer wall of one side of the bottom box, a water inlet pipe is fixedly connected to the inner wall of the through hole, and a top box is installed over the bottom box; when a rotating disc rotates, a third threaded rod rotates along with the rotating disc, at the moment, an L-shaped sliding rod can move back and forth on the outer wall of the rotating third threaded rod, meanwhile, a blocking ring also moves back and forth along with the rotating third threaded rod, when the drainage flow is normal or small, production water can be drained through an inner drainage pipe, and when the drainage flow is large, the rotating disc is rotated, and the production water can be drained. The two sets of plugging rings are moved out of the inner wall of the outer drainage pipe and the inner wall of the middle drainage pipe respectively, at the moment, water flow can automatically flow into the outer drainage pipe and the middle drainage pipe, and therefore the drainage efficiency is improved. Therefore, the surfaces of the outer drainage pipe, the middle drainage pipe and the inner drainage pipe are prevented from being broken.

The utility model relates to an underground garage drainage structure which comprises an underground foundation pit with a hollow interior and an open top, a water collecting well is arranged in the middle of the interior of the underground foundation pit, a parking space is arranged at the top of the water collecting well, a water collecting groove is formed between the water collecting well and the underground foundation pit, and a plurality of water filtering assemblies covering the opening of the water collecting groove are arranged at the top of the water collecting groove. A water suction pump is installed on the side, away from the water inlet pipe, of the water collecting well, and a water outlet of the water suction pump communicates with a water outlet pipe extending out of the water collecting well. Through the water filtering assembly and the water collecting well, the problems that an existing drainage structure is poor in filtering effect and disordered in water flow are solved, meanwhile, installation and maintenance are convenient and fast, the drainage efficiency and stability of the underground garage are effectively improved, and the maintenance cost is reduced.

The utility model belongs to new energy technology field, especially point to a kind of flexible photovoltaic carport, including the main stand and main support beam of transverse interval arrangement, several steel strands are arranged on two main support beams, and the both ends of steel strand are anchored in tension with main support beam, several longitudinal oblique drainage channels are arranged on the steel strand between two main support beams, longitudinal oblique drainage channel is connected with steel strand by first connecting piece, and photovoltaic panel assembly is spliced and is laid flat on the top of the canopy formed by main support beam and steel strand by second connecting piece installed on longitudinal oblique drainage channel;The utility model forms canopy bearing structure by the steel strand of transverse arrangement and main support beam, need not set up transverse purlin, reduce material cost and assembly complexity.

This utility model discloses a sealing device for the maintenance of a small reservoir water conveyance tunnel, relating to the technical field of sealing devices. It includes a water conveyance pipe, one end of which is fixedly connected to an extension pipe. The extension pipe includes a first connecting pipe, a second connecting pipe, and a third connecting pipe. The first connecting pipe is fixed to one end of the water conveyance pipe, and the second connecting pipe is fixed between the first and third connecting pipes. The middle section of the second connecting pipe is U-shaped to facilitate downward water flow. By setting up the extension pipe, which includes the first, second, and third connecting pipes, when maintenance of the water conveyance pipe is required, the valve on the drain pipe is opened, allowing water from both the first and third connecting pipes to flow into the second connecting pipe. The water then flows into the drain pipe through the middle section of the second connecting pipe. Because the middle section of the second connecting pipe is U-shaped, it facilitates the entry of water from the first and third connecting pipes into the drain pipe, thereby improving drainage efficiency.

The utility model relates to a barrel assembly and clothes processing equipment, the barrel assembly comprises a first processing barrel and a second processing barrel, the second processing barrel is arranged above the first processing barrel, the second processing barrel is provided with a water outlet, and the water outlet discharges water towards the side direction. According to the barrel assembly disclosed by the invention, the second treatment barrel is arranged above the first treatment barrel, and the water outlet of the second treatment barrel is arranged to discharge water towards the side direction, so that the situation that the second treatment barrel is difficult to discharge water due to insufficient space between the first treatment barrel and the second treatment barrel is avoided, and the water discharge problem of the second treatment barrel is solved.

The invention relates to a multilayer composite peritoneal dialysis catheter outlet superficial layer infection control medicine patch device, and belongs to the technical field of medical instruments. The device comprises a medicine patch body, a guide rod and a traction strip, the top end of the guide rod is fixedly connected with the right side of the patch body; the upper part of the traction strip is fixedly connected with the lower part of the medicine patch body; according to the device, by optimizing the structural design and material selection, subcutaneous targeted drug delivery, efficient fester adsorption and drainage, non-invasive fixing functions, convenient replacement and other functions can be achieved, and the device is particularly suitable for superficial layer infected parts which are difficult to treat through conventional drug change.

The application relates to the roadway drainage field and discloses a novel roadway efficient drainage device, which comprises an outer through pipe, a water inlet pipe, a sewage storage bin, a drainage port and a variable-diameter port, an inner through pipe, an air inlet pipe and an air outlet pipe, and a sewage port one is arranged on the outer surface of the water inlet pipe; the inner through pipe is composed of the air inlet pipe and the air outlet pipe, and a sewage port two corresponding to the sewage port one is arranged on the outer surface of the air inlet pipe. The device utilizes the introduced high-pressure wind to generate negative pressure in the air inlet pipe inner cavity, and sewage is sucked through the sewage port one and the sewage port two, so that the sewage continuously flows to the left along the air outlet pipe and the sewage storage bin, the flow rate is increased when passing through the variable-diameter port, and finally the sewage is discharged along the drainage port. The device has the advantages that: the volume is small, the device is more flexible to deploy than a wind pump, the narrow space inside the device utilizes the Bernoulli principle to significantly improve the drainage efficiency, the sewage port one and the sewage port two are designed to enable the device to have a certain filtering function, and the overall practicability is enhanced.

The application discloses a kind of stepped drainage groove arrangement methods for accelerating dammed lake breaching and improving discharge efficiency.It includes the following steps,step one: excavate drainage groove in dammed body pass or relatively low concave natural part,with the goal of smaller excavation engineering quantity,as high as possible flow efficiency and combining dammed body material structure composition,confirm the structure form of drainage groove cross section and longitudinal section;Step two: vertically excavate drainage groove at the midpoint of drainage groove downstream side at equal intervals,form vertical ladder with gradually increasing vertical height until connected to dammed body downstream dam slope.The application has the advantages of effectively shortening dammed lake storage time,lowering dammed lake storage capacity,discharging dammed lake storage flood safely and quickly,lowering dammed lake maximum water level and breaching flood peak,thus more greatly reducing reservoir area inundation loss and downstream breaching damage.

The application relates to the technical field of bridge drainage devices, and discloses a bridge drainage structure which comprises a water collecting device, a transverse drainage groove, a longitudinal drainage groove and a drainage pipe which are sequentially arranged and communicated according to the drainage flow direction; the bottom of a sidewalk of the bridge is arranged on the outer side above a driveway through a stand; the water collecting device comprises a sedimentation tank arranged in the stand and a flow guide device arranged between the sedimentation tank and the driveway; the flow guide device is connected with the driveway and the sedimentation tank through a water inlet channel, guides rainwater to the sedimentation tank, and makes sundries carried in the rainwater naturally deposit in the sedimentation tank; then the overflowed rainwater is guided to the transverse drainage groove through a drainage channel which is connected with the water inlet channel and the transverse drainage groove, and is further guided to the longitudinal drainage groove and the drainage pipe, so that the drainage effect of depositing sundries first and then discharging is realized, and the blockage of the drainage groove and the drainage pipe is avoided; and the drainage groove and the drainage pipe are arranged below the sidewalk, the existing space of the bridge structure is effectively utilized, and the use space of the bridge is avoided from being occupied.

The present application provides a chest drainage tube and a chest drainage system with the chest drainage tube, comprising a collecting tube and a discharge tube integrally extended from the collecting tube, wherein at least a first drainage channel and at least a second drainage channel are formed in the collecting tube, the first drainage channel is used for draining liquid in the chest cavity, and the second drainage channel is used for draining gas in the chest cavity; a discharge channel is formed in the discharge tube, the discharge channel is communicated with the first drainage channel and the second drainage channel, so as to discharge the liquid and / or the gas entering through the first drainage channel and the second drainage channel to the outside of the body; the collecting tube comprises a closed section and an open section, the open section is integrally extended from one end of the closed section, and the closed section is located between the discharge tube and the open section; the first drainage channel and the second drainage channel located in the closed section are closed channel structures, and the first drainage channel and the second drainage channel located in the open section are open channel structures, so that the medium in the chest cavity enters the corresponding drainage channel through the open section.

The utility model relates to the technical field of asphalt pavement construction, in particular to a drainage device for asphalt pavement construction. According to the technical scheme, the drainage cover comprises a drainage cover body, a supporting frame and a fixing frame, a groove is formed in the upper surface of the drainage cover body, a drainage groove is formed in the drainage cover body, a supporting box is installed on one side of the lower surface of the drainage cover body, and a fixing box is installed on the other side of the lower surface of the drainage cover body; mounting plates are fixed to the outer end faces of the two sides of the supporting box, the supporting frame is fixed to the inner wall of the supporting box, a mounting frame is movably connected to the upper surface of the supporting frame in an inserted mode, an ejector rod is fixed to the upper surface of the mounting frame, the fixing frame is fixed to the inner wall of the fixing box, and a connecting frame is movably connected to the upper surface of the fixing frame in an inserted mode; a tamping rod is fixed to the upper surface of the connecting frame, a connecting rod is movably inserted into the outer end face of one side of the connecting frame, and a fixing plate is fixed to the outer end face of one side of the connecting rod. The drainage channel can be prevented from being blocked.