31results about How to "Small drainage resistance" patented technology

The invention discloses a seal plug, and belongs to the field of design and manufacturing of plugs for technological holes in car bodies. The seal plug comprises a plug body (1), wherein a clamping part is arranged on the plug body (1); the plug body (1) penetrates through a technological hole, and is clamped in the technological hole through the clamping part; a cavity (12) is formed in the interior of the plug body (1); a one-way go-no go piece (2) is arranged in the cavity (12); a go-no go hole (31) used for being matched with the one-way go-no go piece (2) to ensure one-way penetration of a foreign matter is formed in one end of the cavity (12); a communication hole (13) is formed in the other end of the cavity (12). The seal plug is used for preventing such foreign matters as dust, water and an oil liquid from entering a doorsill beam through the technological hole; meanwhile, dust, water, the oil liquid and other foreign matters which enter the doorsill beam through a sheet metal overlap gap can be removed, so as to protect sheet metal from corrosion; the seal plug is particularly suitable for sealing of a technological hole in a body-in-white doorsill beam.

The invention belongs to the technical field of blockage-preventing floor drains, particularly relates to a split floating-type large-flow overflow-preventing and blockage-eliminating floor drain, andmainly solves the technical problems that the existing sewer pipe device is small in water displacement, is prone to blockage to cause water accumulation, is prone to a sewage backflow phenomenon andis difficult to maintain and clean. The invention adopts a technical scheme as follows: the split floating-type large-flow overflow-preventing and blockage-eliminating floor drain comprises a decorative panel, a floor drain cavity, a floating deodorant sealing ball, an annular filter screen and a dirt-isolating sealing sleeve, wherein the decorative panel is arranged on the top surface of the floor drain cavity; the annular filter screen is arranged on the upper part of the inner cavity of the floor drain cavity; a backflow-preventing device is arranged at the bottom of the floor drain cavity; the backflow-preventing device and the bottom surface of the floor drain cavity are in buckling connection or in threaded connection. The split floating-type large-flow overflow-preventing and blockage-eliminating floor drain has the advantages of a simple structure, strong practicality, high drainage efficiency, unlikeliness in blockage, capability of effectively avoiding sewage backflow and convenience in cleaning and maintenance.

The invention relates to a drainer based on a rotary draining core structure. The drainer includes a drainer body, a draining core, an annular lower disc and a soft rubber cover. The drainer body is a cylindrical structure provided with a hollow cavity, the draining core and the annular lower disc are disposed in the cavity of the drainer body from top to bottom, and the soft rubber cover plugs a drainer upper opening to cut off water. Compared with the prior art, the invention is a detachable novel drainer with a rotary draining core structure and a filtering function, realizes intelligent drainage of an unpowered device, and has the advantages of difficult oscillation, long service life, large filtration area, and small flow resistance, etc.

The invention discloses a novel pasting combined type drainage structural member, belonging to the field of drainage structural members for soft soil foundation construction. The traditional filter membrane layer structure usually sinks into a drainage channel and is cut by the side wall (rack) of the drainage channel under the action of lateral pressure, or has unsatisfactory water permeability. The novel pasting combined type drainage structural member comprises a plurality of longitudinal parallel drainage channel core plates or filter membrane layers, which are made of plastic or synthetic resin, and the drainage channel is arranged on at least one of the front side or the back side of each core plate. The novel pasting combined type drainage structural member is characterized in that at least one filter membrane layer coats the front side and the back side of each core plate, and the width of each film membrane layer is not less than that of each core plate, and the long edge of each filter membrane layer is fixedly bonded with the side end of each core plate through a bonded seam adhesive tape. The invention has the advantages of less adhesive consumption, high water permeability, good integral strength, high production efficiency and low cost, and the film membrane layers and the core plates are fixedly compounded and bonded and are difficult to collapse and fall off.

The invention discloses an organized drainage antiskid wear-resistant car ramp and a construction method thereof. The ramp is provided with drainage ditch surface layers, skirting lines, an antiskid groove surface layer and an antiskid surface layer, the drainage ditch surface layers are arranged on two sides of a longitudinal position of the antiskid surface layer, the skirting lines are positioned on the outer sides of the drainage ditch surface layers, and the antiskid groove surface layer is arranged at a transverse position of the antiskid surface layer. Surface layer concrete is formed by one-time pouring, surface layer integrity is high, and two-layer effect is avoided. Longitudinal side drainage ditches on two sides have drainage and surface layer effects, so that drainage is realized without occupying effective width of the ramp. Transverse drainage grooves have antiskid and drainage effects, so that the ramp has a transverse drainage function, and flushing of longitudinal drainage to the ramp surface layers is avoided. The longitudinal side drainage ditches on the two sides and the transverse drainage grooves jointly form an organized drainage system of the ramp, and the transverse grooves are in a large number, so that drainage efficiency is high.

The invention relates to the field of powder metallurgy, and particularly relates to a powder metallurgy die of an efficient drainage structure. The powder metallurgy die comprises a lower die, an upper die and a forming cavity, wherein the forming cavity is a closed containing cavity which is formed in a way that the upper die and the lower die are closed, a water absorption passage and an air flow passage are arranged above the forming cavity, one end of the water absorption passage is communicated with the forming cavity, and the other end of the water absorption passage is communicated with the air flow passage. Moisture in the powder metallurgy die is blown out of the die under the action of air flow, so that water in the die is drained in time, and the drainage resistance of the water absorption passage is reduced; additionally, extruded water is reduced at a late stage of forming, so that residual water in the forming cavity and the water absorption passage can be actively absorbed under the absorption action of the air flow, the drainage time when a part is formed is greatly extended, the forming efficiency of the powder metallurgy die is improved, and the probability that the residual water drips on the formed part from the forming cavity and damages are caused when the die is opened is greatly reduced.

The invention provides a bottom steam heating system of a full automatic foam plastic forming machine of two opposite-clamping type templates and relates to a full automatic foam plastic forming machine, in particular to a bottom steam heating system of the full automatic foam plastic forming machine. The steam heating system is arranged at the bottoms of the templates; and the steam heating system adopts hard tube connection. The caliber of an entering mould of the bottom steam heating system is greater than or equal to that of a valve. The machine adopts the bottom steam heating system, cancels the original hose connection and adopts the hard tube connection, the caliber of the entering mould is greater than or equal to that of the valve, heating more conforms to the thermodynamic principle, the heating speed is higher, and the thermal efficiency and the production efficiency are enhanced, thereby the production cost is effectively lowered.

The invention discloses a rubber-plastic semi-hollow tire, including a sidewall, a crown is fixedly attached to the inside of the shoulder, the bottom of the crown is fixedly connected with an internal reinforcing additive layer, the bottom end of the inner reinforcing layer is fixedly connected with a crown protective layer, The bottom end of the crown protective layer is fixedly connected with asteel wire belt layer, the bottom end of the steel wire belt layer is fixedly connected with a nylon belt layer, the bottom end of the nylon belt layer is fixedly connected with a copper wire heat dissipation layer, and the bottom end of the inner rubber layer is fixedly connected with a toe mouth protective layer. The rubber-plastic semi-hollow tire Achieved to avoid the accumulation of water inthe tire groove, The use of carbon nanotubes reduces the dead weight of tire, improves the wear resistance of tire, copper plating on steel wire and heat dissipation of copper wire, improves the heatdissipation ability of tire to the maximum extent, and avoids the purpose of heat collection and life reduction of tire.

The invention discloses a heat exchanger, a manufacturing method of the heat exchanger and an air conditioner, the heat exchanger comprises at least two rows of fins, and each row of fins is provided with pipe holes arranged in rows in the length direction of the fins; the at least two rows of fins comprise a first row of fins and a second row of fins which are adjacent to each other, and transverse tube intervals between every two adjacent tube holes of the first row of fins are alternately arranged according to a first distance and a second distance in the arrangement direction of the first row of fins; the transverse pipe distances between every two adjacent pipe holes of the second row of fins are alternately arranged according to the second distance and the first distance in the arrangement direction of the second row of fins; wherein the first distance is smaller than the second distance. According to the heat exchanger, more vacant pipe holes left on the fins can be reduced, so that the heat exchange efficiency of the heat exchanger is improved.

A direct-draining type sewer floor drain with three cavities is used for a ground sewer, consists of a connector, a grate cover, a body and a bottom cover, and is characterized in that outer connecting threads are formed at the upper end of the body; the inside of the body is divided into two function cavities comprising a water draining cavity and a water returning cavity and water draining function space; bottoms of the two function cavities are through channels; a water draining opening which is communicated with the water draining function space is formed in the upper end of a wall of the water returning cavity; the bottom cover is a copying concave bottom cover; the shape of the section of the bottom cover is the same with that of the section of the body; the outside of the connector is square, and the inside of the connector is round; a grate cover shelving table and a threaded connecting table connected with the body are arranged in the connector; the bottom cover is arranged on the bottom of the body in a blocking manner; the outer threads at the upper end of the body are in threaded connection with inner threads at the connecting end of the connector; and the grate cover covers an upper port of the connector. The direct-draining type sewer floor drain is in a channel water draining mode. Compared with the traditional floor drain, the direct-draining type sewer floor drain has the advantages that the wetted perimeter of the direct-draining type sewer floor drain is weaker than that of the traditional floor drain by 50%, and the water draining resistance is greatly reduced; because the sectional area of the water draining opening of the direct-draining type sewer floor drain can be greater than or equal to that of a water inlet, the manual water draining efficiency is high; and actually, when in full-diameter water draining, the direct-draining type sewer floor drain has a siphon negative-pressure water draining function.

The invention discloses an indoor surface drainage system, which comprises an upper cover (1), a water inlet container (2), a drainage container (3), and overturning container water seals (4) (7), and is characterized in that a water level pipe (8) and supports (16) (17) are arranged on the drainage container (3) and are fixedly connected with the drainage container (3), and the overturning container water seal (7) is arranged on the supports (16) (17) and is movably connected with the supports (16) (17) in a matching way; supports (12) (13) and sealing rings (5) (9) are arranged on the water inlet container (2) and are fixedly connected with the water inlet container (2) in a sealing way, and the overturning container water seal (4) is arranged on the supports (12) (13) and is movably connected with the supports (12) (13) in a matching way; and the water inlet container (2) is arranged in the drainage container (3), and the upper cover (1) is arranged on the upper opening of the water inlet container (2). The indoor surface drainage system has convenient cleaning and maintenance, smooth drainage and good gas sealing and odor insulating effect.