282results about How to "Ensure normal drainage" patented technology

A glaucoma drain for non-penetrating deep sclerotorny is made of non-resorbable and hydrophilic synthetic material. The drain is configured to be entirely covered by the scleral flap and totally inserted in the intrascleral space. It comprises a transverse bar (110) at one front end of the drain and a longitudinal body (120) extending longitudinally from said transverse bar. The transverse bar (110, 10) is configured to run along and cover the Schlemm's canal (CS) and the opposite ends are configured to penetrate beneath the deep sclera inside the Sclernm's canal. A hole (125) between the arms of the bar provides a target for possible YAG laser micro-punctures.

A pneumatic tire including five land portions Q1, Q2, Q3, Q4, Q5 in a tread surface 1 by providing four main grooves G1, G2, G3, and G4 in a ground contact region R of the tread surface 1, wherein positions and groove widths of the main grooves G1, G2, G3, and G4 are specified together with only the land portion Q1 positioned outermost on a vehicle outer side when mounted on a vehicle being formed into a block row, and the other land portions Q2, Q3, Q4, and Q5 being formed into ribs, and a groove area proportion of the tread surface 1 is larger on a vehicle inner side than the vehicle outer side with a tire equator CL and center lines of the land portions Q2, Q3, Q4 as boundaries.

A tread portion of a pneumatic ti re includes inner land portions between outer circumferential main grooves disposed most on tread ground-contact end sides and at least one inner circumferential main groove on the inner side thereof. The inner land portions are divided into inner blocks by inner lateral grooves inclined at an angle α of 10 to 40°. The inner lateral grooves consist of first inner lateral grooves and second inner lateral grooves which are alternately arranged in a circumferential direction. The first inner lateral grooves include a wide-width part connecting to the outer circumferential main groove and a narrow-width part connecting to the inner circumferential main groove.

The invention relates to a pneumatic tyre. At least three main grooves (1,2) extending towards the perimeter of the tyre and a plurality of horizontal grooves (3) extending towards the width direction of the tyre and communicating between the main grooves are mounted on a tyre tread part (T) and a plurality of pattern blocks (5) are divided using the main grooves (1,2) and the horizontal grooves (3), characterized in that: a central main groove (1) on a tyre equator (E) is formed into a straight line shape and the horizontal groove (3) is arranged and inclined by 40-60degree relative to the tyre perimeter and an ascending part (3a) is formed at the part of the horizontal groove (3) communicated with the central main groove (1) to make the groove width and the groove depth of the horizontal groove (3) proportionally change and the groove depth (D3a) of the horizontal groove (3) is 40-60% of the groove depth (D1) of the central main groove (1) and the minimum groove width (W3a) of the horizontal groove (3) is 30-50% of the maximum groove width (W3). The pneumatic tyre well keeps the wet road and simultaneously improves the operation stability during driving on the snow road and the dry road.

The invention provides a pneumatic tire, which has directional patterns and achieves improved wet performance, snow performance and nonuniform wear resistance. The central portion (C) of the pneumatic tire is divided into multiple pattern blocks (5) via a central main groove (1), outer main grooves (2) and transverse grooves (3). Meanwhile, the strip-shaped patterns (5) at the tire shoulder portion (S) is provided with shoulder pattern grooves (4). The patterns of the pneumatic tire are directional patterns. The transverse grooves (3) are formed at two sides of the central main groove (1) in the tire width direction and is reversely inclined relative to the tire equator, wherein the central inclined angle Theta1 of the transverse grooves (3) is an acute angle. Meanwhile, the transverse grooves (3) are formed at two sides of the central main groove (1) in the tire width direction and the tire circumferential direction in a staggered manner such that the circumferential portion (3') formed by upward projection of the transverse grooves (3) in the tire circumferential direction is provided at the periphery of the tire. In addition, sipes (7) are provided at the pattern blocks (5) and the strip-shaped patterns (6).

The invention discloses a tread pattern structure of pneumatic tires for two-wheelers. Each tire tread consists of a plurality of tread pattern units arranged alternately and symmetrically along the circumferential direction of the corresponding pneumatic tire, wherein each of the tread pattern units comprises a primary angle groove and a subsidiary angle groove; each primary angle groove extends from a tire equatorial plane towards a tire shoulder, and is formed by connecting a wide primary angle groove of which the opening faces the inside of the axial direction with a narrow primary tread of which the opening faces the outside of the axial direction; and each subsidiary angle groove is arranged between the two corresponding primary angle grooves of two tread pattern units adjacent to each other at the same side of the tire equatorial plane, and is formed by connecting a wide subsidiary angle groove of which the opening faces the outside of the axial direction with a narrow subsidiary tread of which the opening faces the inside of the axial direction. The openings of each primary angle groove and the corresponding subsidiary angle groove at the same side are alternately arranged in the opposite direction, so as to ensure good abrasion resistance performance and drainage performance of the tire tread and improve the traction performance of the tire tread of the pneumatic tires at the same time.

The invention discloses a tread structure of a pneumatic tire for a motorcycle. A tread comprises a plurality of main pattern groove groups which are formed in a staggered manner by using the center of the tread as a symmetry center, wherein first auxiliary fine diamond pattern grooves are formed among the main pattern groove groups, and each first auxiliary fine diamond pattern groove comprises a fine diamond part which is provided with a plurality of tangent planes and a fine groove which is connected with the fine diamond part. The fine diamond parts and the fine grooves of the auxiliary fine diamond pattern grooves are designed to be in mutual connection, so that water films can be effectively broken, the water drainage performance of the tire is effectively improved, and the wet land gripping performance of the tire is improved.

The invention relates to a smart city flood disaster processing system based on geographic integration informatization. The smart city flood disaster processing system comprises a flood situation datamonitoring module, a video monitoring module, an underground pipe network flow control module, a big data comprehensive management module, a command and dispatch module and an information storage module. The big data comprehensive management module analyzes the flood situation and change of each point monitored by the flood situation data monitoring module in combination with a database accordingto the monitoring data provided by the flood situation data monitoring module, and timely responds to the flood situation and change of each point monitored by the flood situation data monitoring module; the flow meters are arranged at an inlet and an outlet of each ground or underground drainage pipe network; the flow dynamic state in each pipe network is monitored in real time, and the purposesof balancing the drainage capacity of each area when the rainfall is severely uneven and preferentially guaranteeing drainage and flood prevention of important areas are achieved by reasonably prejudging and deploying the states of each valve and each water pump in the underground pipe network flow control module.

The invention discloses a chemical siltation resisting drainage device for a tailing dam, comprising a drainage pipe, a siltation resisting trough, water seepage holes, water seepage troughs and geotextiles. The invention is characterized in that the drainage pipe is a circular pipe, and the end part of the pipe is provided with the water seepage troughs and the water seepage holes, and the water seepage troughs are tightly wrapped by the geotextiles; the siltation resisting trough is a rectangular box body having no cover, and the front end of the box body is provided with a circular hole having the same pipe diameter as the drainage pipe; the drainage pipe is obliquely arranged in the siltation resisting trough of the box body at an inclination angle so as to prevent the geotextiles from generating chemical siltation and ensure that the dam body can drain normally. The chemical siltation resisting drainage device has the advantages of simple structure, high effectiveness, low cost and convenient use, and ensures that the geotextiles do not alternate between saturation and nonsaturation, thus preventing the geotextiles from generating chemical siltation. By using the chemical siltation resisting drainage device, the drainage capability of the dam is reinforced, thus ensuring smooth drainage, reducing the seepage line of the dam effectively and accordingly lowering the operation risk of the tailing dam.

The invention discloses a load inflation tire, which can be used to remain the drainage performance and reduce the stones. The load inflation tire is provided with at least a central main groove extending in a tooth-shaped manner on the central area. The central main groove comprises a groove bottom and a pair of groove walls extending from the groove bottom to the tire surface treading surface. Each of the groove walls is provided with groove bottom side steep inclined part and a treading surface side slowly inclined part extending from the external end of the tire of the groove bottom side steep inclined part to the tire surface treading surface, and extends at an angle, which is larger than the groove bottom side steep inclined part. The groove width of the groove bottom side steep inclined part is in a range of from 2 to 8 cm. Each groove wall comprises a concave corner part of the central main groove, and a protruding corner part being bent toward the opposite direction of the central line of the groove. The angle of the treading surface side slowly inclined part is increased gradually from the protruding corner part to the concave corner part.

The invention discloses modified emulsified asphalt for bonding layers, which comprises 65.0-68.0 wt% of asphalt, 3.0-4.0 wt% of modifier, 0.25-0.45 wt% of cation fast crack-typed emulsifier and 27.55-31.75 wt% of water. The solid content of the modified emulsified asphalt for bonding layers is more than 67%, a thicker asphalt film is produced after emulsion breaking, and excellent bonding performance and waterproof performance are provided, and the dynamic viscosity of evaporated residue at 60 DEG C is more than or equal to 1800Pa.s.

The invention relates to a rapid propagation method of Bougainvillea spectabilis Willd. The method specifically includes the steps of collecting cuttings, processing the cuttings, soaking the cuttings with a rooting solution and a sterilizing solution, preparing nutritious sterilizing wrapping mud, soaking the cuttings with the mud, wrapping the cuttings, carrying out cultivating on cultivation discs, performing water and fertilizer management, and carrying out transplanting to obtain finished-product seedlings. The rapid propagation method has the advantages that deep soil is collected, the rooting solution and the sterilizing solution are prepared into a mixed solution, and the mixed solution is mixed with the soil and stirred to prepare the nutritious sterilizing mud; the Bougainvillea spectabilis Willd is prevented from being infected during the propagation process, the cuttings can contact with the rooting solution for a long time to allow the cuttings to root as fast as possible and to have developed roots; rapid propagation of the Bougainvillea spectabilis Willd can be performed all the year round, fast propagation is achieved, the cuttings can root in 5-6 days generally, and transplanting can be performed in about 10 days; and meanwhile, infrastructure investment is not needed, and the method is low in investment, simple in process, easy to operate, evident in effect and worthy of energetic popularization and application.

PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of suppressing damage such as a channel bottom crack by effectively enhancing a stone non-biting property. ŽSOLUTION: At the channel bottom 9a of a circumferential groove 9 formed on the tread surface, a protrusion 10 is formed extending along the extending direction of the circumferential groove 9. The protrusion 10 comprises a head top 11 protruding toward the outer periphery of the tire and a base 12 having a width narrower than that of the head top 11 and connecting the head top 11 and the channel bottom 9a. When a small stone is bitten, the head top is tilted around the base 12 and the protrusion 10 is totally deflected and deformed, thereby generating a reaction force based on a deformation restoring force. Ž

The invention provides a dehydration device for natural gas. The dehydration device comprises a dehydration part and a drainage part, wherein the dehydration part comprises a first cylinder and a second cylinder, a wet gas inlet is formed in the side wall of the first cylinder, a gas-water guide pipe is arranged in the first cylinder in a penetrating manner, and a gas passing hole communicated with the wet gas inlet penetrates through the side wall of the gas-water guide pipe; the second cylinder is connected above the first cylinder in a sealed manner, a cylindrical water filter film is arranged in the second cylinder, an inner cavity of the water filter film is communicated with the gas-water guide pipe, and a first dry gas outlet is formed in the side wall of the second cylinder; the drainage part comprises a water-gas shunt pipe, the upper end of the water-gas shunt pipe is connected with the lower end of the gas-water guide pipe in a sealed manner, the lower end of the water-gas shunt pipe is connected with an upper valve, a water containing chamber is arranged in the water-gas shunt pipe, and an upper floating ball is arranged at the lower part of the water containing chamber and connected with the upper valve. The water filter film is used for filtering and dehydrating wet natural gas, the defect that dehydration cannot be effectively performed at the high air temperature in the prior art is overcome, and automatic dehydration and automatic drainage are realized around the clock all the year round.

The invention discloses a preparation method of modified emulsified asphalt for an ultra-thin wearing layer. The preparation method comprises the following steps: (1) preparing materials of asphalt, a modifying agent, a cationic quick-cracking type emulsifying agent and water according to the following matching ratio: 45.0-68.0% of asphalt, 3.0-4.0% of modifying agent, 0.25-0.45% of cationic quick-cracking type emulsifying agent, 0.5-2.0% of stabilizing agent, 1-5% of auxiliary agent and the balance of water; (2) rising the temperature of the asphalt to 160-189 DEG C, adding the modifying agent, stirring uniformly, grinding by a grinding machine, and controlling the particle size of the modifying agent to be less than 5mum, thereby preparing the modified asphalt; (3) adding the emulsifying agent and the stabilizing agent into water with the temperature of 40-60 DEG C, and adjusting the pH value to be 1.5-3 by using the auxiliary agent, thereby preparing soap liquid; and (4) preparing the modified asphalt obtained in the step (2) and the soap liquid in proportion by an emulsifying device. By virtue of the scheme, the obtained modified emulsified asphalt for the ultra-thin wearing layer has the advantages of strong adhesive property, high solid content and fast emulsion-breaking speed.

The invention belongs to the technical field of batteries, and concretely relates to a piece of equipment for pouring acid for horizontal batteries. The equipment comprises a frame, a driving mechanism, a vacuum pump, an electrolyte case, an acid pouring pipe, and an acid absorption mechanism; the electrolyte case is fixed on the frame; the acid absorption mechanism comprises a sliding cover, an inner cylinder cover and a fixed pipe component; the sliding cover is internally provided with an imbibition interlayer, the vacuum pump and the fixed pipe component are communicated, the bottom of thesliding cover is fixedly connected with a liquid dispensing part, and the liquid dispensing part and the imbibition interlayer are communicated; the inner cylinder cover and an inner wall of the sliding cover are rotatably connected, and an inner wall of the inner cylinder cover is provided with a tooth bar 1; the acid pouring pipe is telescopic, the upper end of the acid pouring pipe and the electrolyte case are communicated, the lower end of the acid pouring pipe penetrates the top of the sliding cover and the top of the inner cylinder cover in order and extends into the inner cylinder cover, the part of the acid pouring pipe located in the inner cylinder cover is provided with a tooth bar 2, a transmitting gear is engaged between the tooth bar 1 and the tooth bar 2, and the transmitting gear is rotatably connected with the frame. The scheme can be used for discharging superfluous electrolyte which enters the battery during acid pouring.

The present invention provides a tire which is provided with central side main grooves (1,1) and tire shoulder side main grooves (2,2) at a tire surface part T. Central strip-shaped patterns (10) are curved between the main grooves (1,1), and central strip-shaped patterns (20) are curved between the main grooves (1,2), wherein, on the central strip-shaped patterns (10) and the central strip-shaped patterns (20), a plurality of tread grooves (11,21) which are terminated in the strip-shaped patterns are formed according to a mode that the groove width reduces gradually in a process of approaching the central side. The distance between the central position of the tire surface part (T) and the center of the main groove (1) is set to 15%-25% of the distance between the central position and a grounding end. The distance between the central position of the tire surface part (T) and the main groove (2) is set to 60%-80% of the distance between the central position and the grounding end. The width of the main groove (1) is set to 70%-90% of the width of the main groove (2). The total area of the main groove (1) and the main groove (2) is set to 15%-25% of the area of the grounding area (A) in the tire surface part (T). The groove area ratio of a central area (Ac) is set to be smaller than that of a tire shoulder area (As).

The invention relates to the technical field of sponge city construction, in particular to a sponge city water circulation system, and aims to overcome the defects that in the process of collecting and recycling city rainfall in the prior art, when the rainfall is large, a drainage system difficultly drains water normally, and city waterlogging is likely to be caused. Wherein the road surface layer is arranged on an urban surface road, the permeable pipeline is used for collecting rainwater permeated into the road surface layer, the rainwater overflow well is used for slowing down the rainwater discharge rate, and the drainage pipeline is used for collecting rainwater and conveying and discharging the rainwater; two symmetrically-arranged water passing holes are formed in the inner side wall of the rainwater overflow well; by means of the sponge city drainage system, the drainage capacity of the sponge city is enhanced, the possibility of urban inland inundation is reduced, and then the stability of the sponge city is improved.

The invention discloses a cross-country tire tread pattern structure. A plurality of pattern units are distributed on a tire tread, each of pattern units comprises central pattern block groups which are distributed along a tire circumferentially and tire shoulder pattern block groups which are distributed along the tire circumferentially, a long tire shoulder pattern block and a short tire shoulder pattern block are distributed on a shoulder portion at intervals circumferentially, all central pattern blocks and all tire shoulder pattern blocks are connected through reinforcing ribs to form a Z-shaped pattern frame, recessed ribs are arranged on recessed portions of all tire shoulder patterns transversely, two sides of the circumferential direction of tire shoulder pattern blocks are designed to a stair shape, and an upper end face and a lower end face are overlapped to form an external end face. The traction of the tie is improved, functions such as drain, mud discharging and falling resistance are guaranteed, and the quick turn performance of tires in a track race is improved greatly.

The invention discloses a green environment-friendly comprehensive management method for high-steep loess landslide. The green environment-friendly comprehensive management method comprises the following steps: carrying out step-by-step cutting on the slope side of a high-steep loess landslide body; leveling the steps of each stage and backfilling reinforced soil on the steps of each stage; filling soil and covering after the reinforced soil is backfilled; pumping soil nails into the reinforced soil; driving a pile foundation into the bottom end of the backfilled reinforced soil at the front edge of the bottom of the high-steep loess landslide; then arranging an anti-slip retaining wall on the outer side of the backfilling reinforced soil; arranging vertical drainage pipes in a slope body;arranging horizontal drainage pipes at the top of the slope body, at the steps of each stage and at the bottom of the slope body; screening, fertilizing and shotcreting the slope side. The comprehensive prevention and control method disclosed by the invention has the advantages that the stress in the slope can be well dispersed and plastic failure is avoided; a perfect drainage system ensures thedrainage of the whole side slope and avoids the effect of rainfall infiltration on the stability of the side slope; in addition, the method disclosed by the invention is a green construction method,and has the advantages of economical raw materials, convenience in construction and suitability for wide application in high-steep landslide treatment in loess areas.

A motor terminal portion structure is provided which can satisfactorily drain the water in an insulating member surrounding the outer circumference of a terminal and prevent water from entering the insulating member, in addition to allowing the insulating member to be commoditized without being influenced by motor layout. A motor terminal portion structure includes an insulator that is formed in a cylindrical shape surrounding the outer circumference of a terminal and is secured to a bracket. A drain hole is provided to establish communication between the inside and outside of the insulator. A flange portion shields an opening of the drain hole on the outside of the insulator. A plurality of the drain holes are disposed around the terminal. The outer side surface of the insulator and the inside surface of the flange portion are each formed in regular polygon so as to conform to each other. A portion of the flange portion facing vertically downward in an on-board state is formed as a notch.

A soap holder is provided having a tripod projection suitable to receive a cake of soap that has a central hole (described in prior art as “Spindle Soap”). This invention simultaneously provides balanced support and multiple openings for improved drainage of the cake of soap between uses. The soap holder may be made of stainless steel, brass, plastics, resins, and porcelain, among other materials, and may be a single formed piece. The device may be easily cast or formed by injection mold technique. The soap holder may also be fabricated from wire, rod or plate stock.

Provided is a water drainage system for a tunnel passing through a karst cave, and belongs to the technical field of tunnel engineering construction. The system comprises a tunnel main body waterproofand water drainage system (1), a karst cave water drainage system (2), an inverted arch water drainage system (3), and a support system (4). The water drainage system for the tunnel passing through the karst cave solves the problem of water drainage of underground water around a tunnel; and the tunnel reasonably penetrates through the karst cave, so that lining cracking caused by water pressure increase is effectively prevented, the tunnel construction quality is effectively improved, the overall structure is stable, and good economic benefits are obtained.