46results about How to "Reduce the chance of water leaks" patented technology

The invention discloses a building expansion joint waterproof structure comprising an elastic cushion, a first waterproof component and a second waterproof component. The elastic cushion is fixedly installed on an expansion joint. The first waterproof component is provided with a first draining groove and a U-shaped first connecting portion. The second waterproof component is provided with a second draining groove and a U-shaped second connecting portion. The structure of the second waterproof component and the structure of the first waterproof component are symmetrical. The first waterproof component and the second waterproof component are connected in a buckled mode through a first connecting portion and a second connecting portion and fixedly installed on the elastic cushion. After the first connecting portion and the second connecting portion are connected in a buckled mode, a gap is preserved between the first connecting portion and the second connecting portion. By the adoption of the building expansion joint waterproof structure, the problem that leakage is caused due to aging, contracting and cracking of a waterproof structure, inconsistent sedimentation coefficients and other factors can be effectively solved, and the technical purpose of preventing seepage of expansion joints in a bathroom and other building spaces is achieved; in this way, a series of problems such as later-period water leakage and maintenance inconvenience can be effectively avoided, the later-period maintenance cost is effectively reduced, and the construction quality and the waterproof quality are guaranteed.

The invention relates to a non-curing polyurethane waterproof coating and a preparation method thereof, belonging to the technical field of polyurethane waterproof coating. It consists of the following raw materials in percentage by weight: prepolymer 13-20%, asphalt 30-65%, latent curing agent 1.0-1.5%, compatibilizer 3-15%, thermoplastic elastomer 2-9%, powder Sexual filler 0-30%, the prepolymer is a reaction composition of polyether and isocyanate. The core of the invention improves the material ratio and polymerization process of polyurethane, which overcomes the problems that hot-melt asphalt materials need to be heated by machines, etc. It is convenient for construction and has good fluidity. The waterproof layer without internal stress can also have good adhesion with the coiled material. It can be composited waterproof to form a waterproof layer that overcomes the cracking of the base layer and prevents puncture. The process is simple and can be quickly constructed. It needs maintenance and has fast work efficiency, which can become the development direction of building waterproofing in the future.

The invention relates to a novel high-pressure manifold device. The novel high-pressure manifold device comprises a linear center manifold. A discharging port is formed in the rear end of the center manifold. A series connection-in port is formed in the front end of the center manifold, the rear end of the upper side of the center manifold is vertically connected with a first liquid inlet channel,and the front end of the lower side of the center manifold is vertically connected with a second liquid inlet channel. The center manifold is in a linear shape, the reducing area and friction lossesof the center manifold are reduced, sand setting of the high-pressure manifold is reduced, and the fracturing construction safety coefficient is improved. In addition, the included angle between the first liquid inlet channel and the center manifold and the included angle between the second liquid inlet channel and the center manifold are right angles, and accordingly erosion abrasion to the novelmanifold device from high-pressure fluid can be effectively reduced. The first liquid inlet channel and the second liquid inlet channel are arranged in a staggered manner, the vortex state of the high-pressure fluid in the center manifold can be reduced, and vibration caused by high-pressure manifold impacts due to the high-pressure fluid is reduced.

The invention provides a pressurized pipeline type water purifier and a packaging method thereof. The pressurized pipeline type water purifier comprises a front composite filter element and a composite RO (reverse osmosis) membrane reverse osmosis filter element, wherein a tap water inlet is formed in the front end of the front composite filter element; a pure water outlet and a concentrated water outlet are formed in the rear end of the composite RO membrane reverse osmosis filter element. Pure water is obtained through matched use of the front composite filter element and the composite RO membrane reverse osmosis filter element, the two filter elements are directly connected or connected through a connection pipeline, common PE (polyethylene) pipeline connection in an RO filtering machine is eliminated, water leakage points and the number of filter flasks are reduced, and the assembly efficiency of the water purifier is improved. The front composite filter element is connected with a pressurizing device, during quick water production, initially filtered water enters the pressurizing device from a low-pressure water outlet for pressurization and then flows into the composite RO membrane reverse osmosis filter element through a central high-pressure water outlet pipe, the water production capacity is improved, an RO membrane can be washed, and the service life of the RO membrane is prolonged.

The invention discloses a construction device and a construction method of a lock catch type steel pipe pile cofferdam, The device is a cofferdam ( which is in an axial direction parallel mold ) whichis formed by connecting a plurality of locking notch steel pipe piles in parallel, C-shaped female locking notches and T-shaped profile steel are welded to the outer side walls of the two sides of the steel pipe piles along the axis directions of the steel pipe piles correspondingly. According to the device and the method, the structure construction speed is fast, the manufacturing and installingprocess are simple, large mechanical equipment is not needed, and floating facilities are not needed; a male and female joint is adopted by a steel pipe pile joint, so that the number of lock catchesis reduced, and the water leakage probability of the cofferdam is reduced; the water plugging effect can be achieved by simply adopting bentonite processing and the like in the lock catches, the recycling of the steel pipe piles can be ensured, steel is saved, and economy and affordability are achieved.

The invention relates to a heat radiator, formed by at least one radiation fin, wherein said fin comprises two end posts, and middle radiation tube; said post has post cap and post cover, while the post cap is punched chamber whose one end is open and another end is sealed, and the open of post cap is welded with post cover shaped in the same as open; the post cover has through hole; the post cover and post cap are welded into one body; the post has radiation tube connecting through hole; the post through hole is the post cover through hole; the open of radiation tube is welded with the post cover through hole; the side surface of post cap has through hole, as the connecting through hole between radiation fins, to be connected via the connecting tubes, to form a group of radiators.

The invention discloses a wire drawing system for drawing a steel wire. The wire drawing system comprises a wire drawing machine, a guide roller frame and a rotary wire drawing device which are arranged in sequence, the wire drawing machine comprises a pay-off rack, the pay-off rack comprises a machine base and a pay-off channel arranged on the machine base, one end of the pay-off channel is connected with the wire drawing machine, and a bearing cover plate is arranged at a port of the other end of the pay-off channel; a pay-off roller is arranged on one side of the bearing cover plate; the guide roller frame comprises a machine base, a fixed box body arranged on the machine base and a guide roller set, the guide roller set is arranged in the fixed box body, and a steel wire passing opening is formed between guide rollers in the guide roller set; the rotary wire drawing device comprises a base and a box body arranged on the base, a barrel is arranged in the box body, a wire drawing cavity and a wire drawing die are sequentially arranged in the barrel body, the barrel body is sleeved with a worm gear, and the worm gear is connected with a worm. The rotating service life is prolonged, the workload of machine maintenance workers is reduced, the maintenance cost is reduced, the stopping maintenance time is shortened, and the working efficiency is improved.

The invention provides an integrated water heater. The integrated water heater comprises an inner container, a water inlet pipe and a water outlet pipe, wherein a connecting port is formed in the inner container, and the upper end of the water outlet pipe penetrates through the connecting port, and extends into the inner container; the water inlet pipe sleeves the water outlet pipe and is fixed with the connecting port; a first water inlet channel is formed between the water inlet pipe and the water outlet pipe, and the first water inlet channel communicates with the inner container; and the water inlet pipe is connected with a water inlet, and the water inlet communicates with the inner container through the first water inlet channel. According to the integrated water heater, connecting ports between the water inlet pipe and the inner container, and between the water outlet pipe and the inner container are reduced, so that the water leakage probability is reduced, and the product quality is improved.

The invention belongs to the field of dish-washing machines, and discloses a dish-washing machine. The dish-washing machine comprises a liner and a water channel. The connecting part of the liner andthe water channel is sunken downwards in a cylindrical shape. A planar filtering net is placed in the sunken part of the liner. A supporting piece is annularly arranged between the planar filtering net and the bottom face of the sunken part and used for supporting the planar filtering net. According to dish-washing machine, the connecting part of the liner and the water channel is sunken downwardsin the cylindrical shape, the planar filtering net is placed in the sunken part, thus compared with that of an existing liner structure with two steps, the space occupied by a water way can be reduced, and accordingly, the space utilization rate of the bottom of the liner is increased; through the liner structure, the manufacturing cost can be reduced; and by arranging the supporting piece, fastening force between the water channel and the liner is more balanced, the probability of water leakage is decreased, and meanwhile, a gap between the planar filtering net and the bottom face of the sunken part of the liner is enlarged, so that the water flow is smoother.

The invention relates to building roof structure s, in particular to a drainage structure of a planted roof. The drainage structure of the planted roof comprises a roof structure layer, a plant soil layer directly or indirectly arranged on the roof structure layer, a water drainage opening formed in the plant soil layer, a rainwater hopper connected at the bottom of the water drainage opening and inlaid in the roof structure layer, and a water drainage pipe for communicating the plant soil layer with the water drainage opening so as to drain infiltrating water in the plant soil layer to the water drainage opening, wherein the water drainage opening is formed by surrounding of a well wall on the roof structure layer. By the drainage structure of the planted roof, overland flows on the planted roof and the infiltrating water under plant oil on the planted roof can be converged and drained together with rainwater, so that the number of the rainwater hoppers is decreased, engineering cost is saved, and roof leakage probability is decreased.

The invention relates to a communication base station with a water leakage prevention function. The communication base station comprises a body, a base, a waterproofing mechanism and a repairing mechanism, wherein the repairing mechanism comprises a guiding rod, a second moving assembly, a nozzle, a material delivery pipe, a high-pressure pump, a material storage box, two guiding rails and two first moving assemblies, and the repairing mechanism further comprises a driving assembly, a rotary shaft, a first gear, two first transmission rods, two reinforcing sleeve tubes and two transmission assemblies. According to the communication base station with the water leakage prevention function, the nozzle can be driven to move on the station through the repairing mechanism, asphalt is sprayed onthe station through the nozzle, so that the repairing of cracks on the top of the communication base station is achieved, the possibility of water leakage occurrence of the communication base stationis reduced and the practicability of the communication base station is improved, through the repairing mechanism, the communication base station can be driven to lift up and lower down, so that the possibility that accumulated water flows into the communication base station is reduced, and the practicability of the communication base station is further improved.

The invention discloses a waterproof structure for building expansion joints, which comprises: an elastic pad fixedly mounted on the expansion joint; a first waterproof component having a first drainage groove and a U-shaped first connecting portion; a second waterproof component, It has a second drainage groove and a U-shaped second connecting part. The structure of the second waterproof member is symmetrical to that of the first waterproof member. The first waterproof member and the second waterproof member pass through the first connecting part and the second waterproof member. The connecting parts are buckled together and fixedly installed on the elastic pad; after the first connecting part and the second connecting part are buckled together, there is a reserved gap between them. The invention can effectively solve the leakage problem caused by factors such as waterproof aging, shrinkage, cracking, and inconsistent foundation settlement coefficients, and solve the technical problem of anti-leakage of expansion joints in building spaces such as toilets, thereby effectively avoiding water leakage and damage in the later stage. A series of problems such as inconvenient maintenance can effectively reduce the cost of maintenance and repair in the later period and ensure the waterproof quality of construction.

The invention discloses a construction method for treating a rock mass cavity without templates in tunnel engineering, which comprises the following steps: step 1, setting inner and outer protection layers; step 2, constructing a protective arch between the inner protection layer and the outer protection layer Pour concrete to form a protective arch; step 3, excavate the cavern and apply initial support, under the protection of the protective arch, carry out excavation of the tunnel engineering cavern and initial support construction; the initial support is reserved to communicate with the protective arch Drainage holes and blow-fill holes are pre-buried in the holes respectively. Drainage pipes and blow-fill pipes are pre-buried; step 4, blow-fill graded gravel buffer layer, blow-fill graded gravel should be blown-fill in sequence from bottom to top, and gradually complete the entire Blow filling work; step five, pouring secondary lining. The invention can effectively reduce the construction risks caused by disasters such as landslides and rockfalls in the rock cavity section of the tunnel, accelerate the treatment speed, reduce engineering costs, ensure the treatment quality of the tunnel rock cavity, improve the safety of the tunnel during operation and reduce maintenance cost.

The invention discloses an integrated water line structure of a water purifier. The integrated water line structure comprises a plurality of filtering valve head assemblies, wherein the filtering valve head assemblies are mutually connected and are communicated by hollow connecting pipes; a connecting head coats the outer side of each connecting pipe, so as to form an integrated water line. The integrated water line structure has the advantage that while the probability of water leakage is decreased in the daily use process, the integrity of a product is improved, and the assembly property inthe production process is easier.