23results about How to "Ensure normal drainage" patented technology

The utility model discloses a water-driven self-pressure-relief buried telescopic sprinkling irrigation device, and belongs to the technical field of agricultural irrigation. The water-driven self-pressure-relief buried telescopic sprinkling irrigation device comprises an outer pipe assembly, an inner pipe is arranged in the outer pipe assembly in a sliding mode, the upper end and the lower end of the inner pipe are fixedly provided with a spray head and a sliding base respectively, the sliding base divides the interior of the outer pipe assembly into a first inner cavity and a second inner cavity, and the spray head extends to the exterior of the outer pipe assembly; a self-pressure-relief assembly is arranged in the sliding seat in a sliding mode, and a plurality of connecting holes matched with the self-pressure-relief assembly are formed in the sliding seat. According to the technical scheme, the buried telescopic sprinkling irrigation device can be driven up and down through water resources, and meanwhile, pressure self-relief can be achieved.

The application discloses a washing machine and a control method thereof. The filter is arranged in the accommodating groove and below the end cover. The filter forms a filter groove. Water in the end cover can be introduced into the filter groove and filtered through the filter groove. The filtered water is introduced into the accommodating groove and discharged from the accommodating groove. The cleaning brush is at least partially arranged in the filter groove. The cleaning brush is in contact with the inner wall of the filter groove and can rotate around the rotating shaft in the filter groove. The top of the cleaning brush is provided with a pushing part. The water in the end cover impacts the pushing part during the introduction into the filter groove, so that the pushing part pushes the cleaning brush to rotate, so that the cleaning brush brushes the inner wall of the filter groove through rotation. Therefore, during the water entering the filter groove, the water flow impacts the pushing part to push the cleaning brush to rotate and brush the filter groove, so that the filter can be well cleaned to prevent the filter from being blocked, and the normal drainage of the washing machine is ensured.

The embodiment of the utility model provides a cast-in-place concrete slope protection forming template capable of adjusting gradient, which relates to the technical field of concrete slope protection processing and comprises a side plate and a top plate arranged at the upper end of the side plate, a positioning hook is arranged on one side of the top plate, a rotating shaft is further arranged on one side of the upper end of the top plate, and a supporting piece is arranged on the other side of the top plate. When the side plates are used for machining the concrete slope protection, the transverse baffles and the vertical baffles are spliced, then the top plate at the upper end is installed, after the top plate is adjusted to the proper gradient, concrete is poured into the top plate for forming, and then the slope protection can be conveniently made into the proper gradient for use.

This invention relates to the field of flood control manhole cover technology, and proposes an anti-clogging manhole cover for flood control emergency use in municipal engineering. The cover includes: a cover body with several vertically extending drainage windows; several flaps that open and close within the drainage windows, each flap having an upward-lifting portion. When the flap is open, the upward-lifting portion rotates to the top of the cover body and is tilted. Moving objects on the road press down on the flaps, causing them to close; a filter cover located below the upward-lifting portion, with an anti-clogging channel inside. When the flap is open, the upper part of the filter cover passes through the drainage windows and rotates to the top of the cover body, while the lower part of the filter cover is located inside the drainage windows or below the cover body; and an actuating element that drives the flaps to rotate and open. This technical solution solves the problem in the prior art where manhole covers in motor vehicle lanes cannot effectively participate in drainage during flood control emergencies, thus affecting traffic flow.

The application relates to the technical field of nursing, in particular to a breast tumor postoperative nursing belt which comprises two protective belts, an inflation mechanism is arranged between the two protective belts, the lower edge of each protective belt is connected with an extension belt, the front surface of the extension belt is fixedly connected with a soft belt, the upper edge of the front surface of the soft belt is fixedly connected with a hard plate, a sliding opening is arranged in the front surface of the hard plate, a connecting seat is slidably connected to the inner side of the sliding opening, an elastic sheet is arranged at the rear end of the connecting seat, pulling mechanisms are arranged at the two sides of the front surface of the elastic sheet, and a binding mechanism is arranged at the side away from each other of the two protective belts. The drainage tube is led out from the rear of the elastic sheet, the problem that the drainage tube is squeezed can be avoided, the drainage is ensured, when the protective belt is inflated, the rear end of the elastic sheet is well limited, and the elastic sheet is prevented from being easily slid and displaced in the later use.

The present application relates to the technical field of medical equipment, and more particularly to a pancreatic anastomosis intelligent negative pressure drainage system for pancreatic fistula monitoring, which comprises: a baseline construction module for constructing an individual reference baseline data set within a preset time period; an enzyme concentration detection module for detecting whether the pancreatic amylase concentration in the drainage fluid exceeds an abnormal trigger threshold; a tube state identification module for determining a tube state identification result through tube state visual identification and flow rate consistency verification when the enzyme concentration abnormal duration exceeds a threshold; a saturation compensation module for extracting the plateau of the pancreatic amylase concentration curve and judging whether the saturation sequence of each detection point meets the requirements; and a correction module for correcting the initial negative pressure when the saturation sequence requirements are not met. Through the cooperation of multiple modules, the present application realizes real-time and accurate monitoring of the pancreatic anastomosis fistula, improves the reliability and response speed of postoperative complication identification, and provides intelligent drainage state judgment and early warning support for clinical use.

The invention discloses a thyroid cancer postoperative drainage device. The thyroid cancer postoperative drainage device comprises a double-cavity tube and a fixing mechanism. The double-cavity tube comprises a flushing tube and a drainage tube which are arranged side by side, the pipe diameter of the flushing tube is smaller than that of the drainage tube, the head end of the flushing tube is shorter than that of the drainage tube, and the double-cavity tube is sleeved with an inflatable and deflatable air bag. The fixing mechanism comprises a limiting seat, a fixing belt, a pressing plate and a manual adjusting part, the limiting seat is fixed to the human body through the fixing belt, a pipe penetrating groove is formed in the limiting seat, the double-cavity pipe penetrates through the pipe penetrating groove, the air bag is located in the pipe penetrating groove, and the pressing plate is movably arranged in the pipe penetrating groove and connected with the manual adjusting part. The manual adjusting piece is used for driving the pressing plate to move, and the air bag is extruded to be elastically deformed so that the double-cavity tube can be locked at the preset position in the tube penetrating groove. Through cooperation of the air bag and the pressing plate, lossless and accurate-positioning stable fixing of the drainage tube is achieved, the risk that the tube is displaced, disengaged or squashed is effectively avoided, and the safety and convenience of postoperative drainage are improved.

The invention provides a paper product, modified light calcium carbonate and a preparation method thereof. The preparation method of the modified light calcium carbonate comprises the following steps: carrying out surface charge modification treatment on light calcium carbonate; carrying out micro-polymerization treatment on the light calcium carbonate subjected to surface charge modification treatment; and carrying out pre-flocculation treatment on the light calcium carbonate subjected to micro-polymerization treatment. According to the preparation method of the modified light calcium carbonate provided by the embodiment of the invention, the light calcium carbonate is firstly subjected to surface modification (charge adjustment), then subjected to micro-polymerization (specific surface area adjustment) and finally subjected to pre-flocculation (overall form optimization), the modified PCC filler can be added into paper pulp for papermaking, and under the condition that the addition amount of the PCC filler is increased, the specific surface area of the PCC filler is increased, and the overall form of the PCC filler is optimized. The water filtering performance of the pulp is ensured, the retention characteristic is not deteriorated, and considerable paper physical property strength, surface strength and sizing performance are maintained. And on the premise of ensuring the running performance of the paper machine, the paper making raw material cost is reduced while the same paper quality is achieved.

The utility model discloses an odor-resistant floor drain core with an internal filter element with a reducing pipe diameter, which comprises a filter cartridge and an inner pipe core, the inner pipe core is detachably nested and assembled in the filter cartridge, the filter cartridge comprises a draining section and a water storage section, a filter cartridge wall of the draining section is provided with a through hole for draining water, and the water storage section is provided with a water inlet and a water outlet. The water storage section is arranged on the lower portion of the draining section, a main body of the filter cylinder is of a cylindrical structure, the filter cylinder wall of the water storage section and the bottom of the filter cylinder are both of a waterproof structure, through holes in the lowest row of the draining section are the lowest drainage position, the inner pipe core comprises an upper reducing pipe and a lower duckbilled section, and the upper reducing pipe is connected with the lower duckbilled section. A water outlet port of the lower duckbilled section is arranged below the lowest drainage position, and the length of the lower duckbilled section is matched with that of the draining section.

The utility model relates to an epipremnum aureum flowerpot with good root damage prevention effect, which belongs to the technical field of flowerpots, and comprises a frame body and a glass vase, four corners of the lower surface of the frame body are provided with support blocks, the front, back, left and right sides of the frame body are provided with decorative patterns, and a connecting mechanism comprises rectangular cylinders arranged on the left and right sides of the bottom wall of the inner cavity of the frame body. According to the scindapsus aureus flowerpot with the good root damage prevention effect, the soil layer is made of mixed soil of leaf mold and perlite in the proportion of four to one, meanwhile, water in the frame body can be sucked into the moisturizing cotton layer through the water absorption cotton strips on the left side and the right side, the moisturizing cotton layer can keep the soil layer moist, and in winter, the soil layer can be kept wet; when the temperature value of the soil layer is lower than a threshold value set by the temperature sensor, the temperature sensor sends a signal to the controller, and the controller turns on the signal lamp and flickers to prompt people to take temperature rise measures, so that the condition that roots of scindapsus aureus in the flowerpot are damaged can be reduced.

The invention relates to a vehicle pneumatic tire having a tread with shoulder side blocks (8) belonging to a shoulder block row (2, 6) and intermediate blocks (8) between the shoulder side blocks (8), wherein at least some of the shoulder side blocks (8) and / or at least some of the intermediate blocks (8) each in a top view are provided with at least one incision (10) extending at an angle of up to 35° to the axial direction (AR) having a width of 0.4 mm to 0.8 mm and having a depth at its deepest location of at least 50% of the tread depth, and wherein microsipes (13-20) are arranged, wherein the microsipes (13-20) have a width of 0.2 mm to 0.6 mm and a depth of 0.2 mm to 0.9 mm. At least one of these blocks (8) has a microsipe element (12) consisting of snowflake-like dendritically arranged microsipes (13-20), wherein the microsipe element (12) consists of at least four microsipes (13-16) which in a star-like manner point towards a center point (21) of the microsipe element (12).

This utility model relates to the technical field of drip irrigation devices, specifically to a drip irrigation device for high-yield wheat cultivation. It includes an external pipe and a main pipe. A filter section is located at one end of the main pipe, within the external pipe. Equally spaced pipe assemblies and an external filter pipe are fixedly connected to the outside of the main pipe. A delivery branch pipe connects the external filter pipe and the main pipe. A filter screen is fitted onto the surface of the filter section. An extension section and a flow guide section are located at the connection point between the external pipe and the main pipe. Through holes are formed on the surface of the filter section. The external pipe facilitates threaded connection between the entire device and external liquid supply equipment. The flow guide section concentrates and directs the input external liquid. The extension section ensures proper flow of the liquid through the through holes. The filter screen filters the input external liquid. The through holes facilitate the entry of the filtered external liquid into the main pipe.

The retaining wall structure with the inverted filtering function comprises a concrete retaining wall and a decorative plate, a built-in cavity is formed in the front end of the concrete retaining wall, positioning rods are fixed to the left side and the right side of the inner wall of the built-in cavity, a second adhesion plate is arranged in the middle of the inner wall of the built-in cavity, the decorative plate is arranged on the front side of the built-in cavity, and the inner wall of the decorative plate is provided with an inverted filtering function. And a fixing strip is arranged on the inner wall of the decorative plate, and an insertion hole is formed in the fixing strip. According to the retaining wall structure with the inverted filtering function, the geotextile inverted filtering layer mainly has the functions of filtering, water drainage and protection in the concrete retaining wall, the geotextile inverted filtering layer can effectively prevent soil particles from entering a water drainage system along with water flow, the water drainage system is prevented from being blocked, and smooth water drainage is kept; the geotextile inverted filter allows water to be discharged through the geotextile material, the water pressure behind the retaining wall is reduced, the stability of the retaining wall is enhanced, the geotextile inverted filter prevents soil erosion and loss, and the retaining wall structure is protected against damage.

The utility model discloses a kind of bean curd forming devices, including frame body, its inside liftable is provided with pressing plate;Forming die, setting below pressing plate and keeping limit fixed or linear sliding;Water collecting tank plate, setting below forming die for supporting forming die and along linear sliding.This forming device keeps linear sliding or limit fixed forming die by placing in water collecting tank plate, so as to facilitate forming die to move to pressing plate below and carry out pressing and setting to bean curd, while in the process of pressing and setting, water mark of bean curd discharge directly falls in water collecting tank plate and is concentrated and discharged, avoid water mark to flow out at will, guarantee processing environment.

This application discloses a microchannel heat exchanger, its fabrication method, and an air conditioner. The fabrication method includes: providing a flat tube and fins; inserting the flat tube into the fins to pre-fix the flat tube and fins; providing a manifold; pre-fixing the manifold and flat tube and connecting the manifold and flat tube; immersing the manifold in a solder bath to weld it to the flat tube by dip welding; and introducing fluid into the flat tube to cause it to expand under fluid pressure and form an expansion connection with the fins. The fins have a hydrophilic layer or a hydrophobic layer. The microchannel heat exchanger, its fabrication method, and the air conditioner of this application can improve heat exchange performance while ensuring the uniformity and stability of the hydrophilic or hydrophobic layer on the fins.

The utility model provides a waterproof and drainage structure of a tunnel side wall, which belongs to the field of tunnel waterproofing and comprises a longitudinal blind pipe arranged between a primary support and a secondary lining; the waterproof plate is hung on the inner wall of the primary support, and the lower edge of the waterproof plate is reversely wrapped on the longitudinal blind pipe; and the pressing strip is used for pressing the waterproof plate on the primary support. The tunnel side wall waterproof and drainage structure aims at solving the problems that in the prior art, a waterproof plate and a primary support are not tightly connected and are prone to falling off, and the drainage and waterproof effects are greatly affected. The technical effects are achieved as follows: reliable connection between the waterproof plate and the primary support is realized, the stability of the structure is guaranteed, the waterproof plate is prevented from falling off, and the drainage and waterproof effects are further guaranteed.

A heat exchanger (1) includes: a tube (10) through which a first fluid flows; and fins (20) which are formed by bending the plate-shaped members and which promote heat exchange between the first fluid and the second fluid flowing outside the tubes. The outer surface (21) of the fin has a first region (21A) and a second region (21B) having higher hydrophilicity than the first region. A groove (22) for improving the hydrophilicity of the outer surface is formed in the second region. The second region is disposed adjacent to a region (12A) of a portion of a joining portion (12) between the tube and the fin.

This invention provides a tire with a tread pattern on its tread surface. The tread pattern includes: multiple longitudinal grooves extending circumferentially along the tire's width, spaced apart to divide the tread into two shoulder tread portions and a central tread portion between the two shoulder tread portions; connecting grooves on the shoulder tread portions and the central tread portion, one end of which connects to a longitudinal groove, and the other end extending to the tire shoulder; and connecting grooves on the central tread portion connecting two adjacent longitudinal grooves; and a first sipe on the central tread portion, with both ends connecting to a longitudinal groove and a connecting groove, respectively. This invention effectively solves the problem of low wet handling performance of SUV tires in the prior art.

The utility model discloses a drainage structure of sliding door and sliding door belong to door and window technical field. The lower rail section is equipped with first track and second track, and the first track is equipped with outdoor drainage cavity, outdoor drainage hole and water outlet on the outside of second track, and the drainage sealing element includes the sealing frame body and the support foot, and the support foot is used for supporting the sealing frame body and is suspended between the first track and the second track, and the lower portion of sealing frame body and the lower rail section are enclosed and form the closed intermediate drainage cavity, and the sealing frame body is equipped with the intermediate water leakage hole that communicates with the intermediate drainage cavity, and the liquid in the intermediate drainage cavity can be in turn through outdoor drainage hole, outdoor drainage cavity and water outlet and export to the outside of lower rail section. The utility model discloses through setting up the sealing frame body between two tracks, forms the closed intermediate drainage cavity, and effectively improved the drainage efficiency and water tightness of sliding door.

The application discloses an electronic well lid based on electric travel switch control and a method thereof, and belongs to the technical field of well lids. In order to solve the problem that it is difficult to control the number of drainage outlets and the opening and closing conditions of the well lid, a plurality of flow control openings are formed in the top surface of the electronic well lid body, and a control assembly is arranged in the middle of the bottom surface of the electronic well lid body. When the drainage demand increases, the adjustment rail assembly and the multi-stage baffle can be adjusted according to the real-time monitoring of the road waterlogging condition, the multi-stage flow control opening can be remotely controlled to be opened or closed, the drainage efficiency is improved, the safety hidden danger caused by waterlogging is effectively reduced, the remote monitoring and operation can be realized by controlling the adjustment rail assembly and the multi-stage baffle through the remote electric control system, the staff can conveniently maintain and manage the drainage outlet, the drainage amount can be accurately controlled, the waste of water resources is avoided, the number of the multi-stage flow control openings can be controlled by the electric control when the drainage amount needs to be increased, the influence on the surrounding environment can be reduced, and the noise and peculiar smell are reduced.

The utility model discloses a variable cross section multi -box chamber box girder structure, including bridge body, first end part and second end part, from the first end plate along the direction of second end part's width size of bridge surface gradually reduces the setting, a plurality of box chamber structures are arranged between first end part and second end part, and at least partial box chamber structure is arranged along the center position symmetry of first end part and second end part, first abutment is arranged on first end part, and second abutment is arranged on second end part, the bridge body is supported with ground through first abutment and second abutment, the distance from first end part to second end part is less than the width of second end part, the structure of this scheme can not only guarantee the drainage of wide bridge body structure, but also can guarantee the stability of whole, can also reduce the construction difficulty of bridge body simultaneously.

This invention provides a tire with a tread pattern. Multiple longitudinal grooves in the tread pattern are spaced apart along the width of the tire, dividing the tread into two shoulder tread portions and a central tread portion between the two shoulder tread portions. Groove structures are provided on the central tread portion, each groove including a first recess and a first sipe that are interconnected. The end of the first recess away from the first sipe extends into a longitudinal groove on one side of the central tread portion, and the end of the first sipe away from the first recess extends into a longitudinal groove on the other side of the central tread portion. The extension direction of the first recess forms a first angle A1 with the first sipe. Multiple groove structures are spaced apart along the circumference of the tire, and the first recesses of adjacent groove structures are connected to different longitudinal grooves. This invention effectively solves the problem in the prior art where tires cannot simultaneously meet the requirements of handling and comfort.

This invention discloses a method for transplanting old tea seedlings in low-altitude, slightly alkaline soil areas. The method utilizes a two-stage in-situ root pruning technique to rapidly cultivate transplantable mature old tea seedlings; it also creates suitable low-sunlight conditions for tea seedling growth by combining light environment with the surrounding area of ​​the pre-built tea garden; it improves the slightly alkaline soil to a slightly acidic soil suitable for tea seedling growth through soil improvement technology; it uses misting technology to create a microclimate with the same air humidity as the original habitat of the tea seedlings within the tea garden; and it uses high ridges and deep trenches to plant container tea seedlings, ensuring drainage and aeration of the tea tree roots. This effectively solves the problem that the microclimate and soil conditions in low-altitude, slightly alkaline soil areas are unsuitable for establishing tea gardens with good growth.