34results about How to "Increase blocking area" patented technology

The invention relates to a composite type artificial fish reef which comprises a square frame reef, tire-shaped concrete components and a bait culture medium. The square frame reef is arranged in a hollow mode, the incident flow face and the reverse flow face of the square frame reef are symmetrically provided with circular open holes respectively, the tire-shaped concrete components are symmetrically arranged at the upper portion of the square frame reef, meanwhile, the multiple tire-shaped components and the bait culture medium are symmetrically arranged on the two side wall faces of the square frame reef, and shells are arranged in the bait culture medium. Obviously, while the composite type artificial fish reef solves the problem of tire reef pollution, the advantages of the tire reef are reserved, the formed flow field effect is good, larger upward flow and back eddy flow are formed, the reef influence range is enlarged, the better survival environment is provided for advanced fries and juvenile fish, the juvenile fish survival rate can be greatly increased, fishery culture and proliferation and aquatic organism diversity protection are facilitated, and the better application prospect is achieved.

The invention provides a nuclear fuel assembly grid with enhanced mixing blades, wherein an upper rigid dimple and a lower rigid dimple and a spring between the upper rigid dimple and the lower rigid dimple are arranged on the side wall of each grid strip to clamp a fuel rod; a slot is formed below or above each grid strip, and the adjacent grid strips are connected in a vertical crossing manner through the slots; two corresponding enhanced mixing blades are arranged above a cross point of each two adjacent grid strips to mix fluid flowing by; each enhanced mixing blade is of a closed structure; a cavity is arranged on an axis wire which is within the range of 1-20 mm below the cross point of each two adjacent grid strips, and the grid strips are fixed through welding at the cavities. A closed area is formed at the cross part between each enhanced mixing blade and each strip, so that the mixing disturbance of the mixing blades on the fluid is remarkably improved. As the welding cavity is arranged below each mixing blade, the overall mechanical strength of the mixing grid is guaranteed.

The invention discloses algae water filter equipment with multistage filter function. The equipment is characterized by comprising a water surface algae sucking device, a shore algae water filter anda second-stage filter box, wherein the water surface algae sucking device is floated on the water surface; the algae sucking device introduces sucked algae water into the shore algae water filter through a pipeline for filtration; and filtered concentrate algae pulp is introduced into the second-stage filter box for filtration by a pipeline. The algae water filter equipment with multistage filterfunction is special for an open channel and a narrower river channel; the algae sucking suspension height can be adjusted according to the thickness condition of a blue algae layer, so that the algaelayer is sucked by a non-blockage pump as much as possible, and the algae removing effect is excellent; the shore algae water filter can realize centrifugal filtration of algae water, can realize theequipment self-cleaning in the centrifugal filter process, and can perform the flushing cleaning on a filter screen of the second-stage filter box and a suspension fence; separated clear water is recycled by the flushing cleaning; and the filter equipment can save water sources and electric resources, and is convenient to operate, low in cost and suitable for wide-range popularization and application.

The invention describes a sound insulation device for processing noise, which includes a base pier and an arc-shaped sound insulation board arranged on the base pier. A groove is opened on the upper surface of the sound insulation board, and a groove matching the shape of the sound insulation board is slidingly arranged in the groove. The matching extension section, the extension section includes successively connected iron plates and rock wool layers, a dovetail groove is opened on the upper groove wall of the sound insulation board, a dovetail protrusion is installed slidingly in the dovetail groove, and a dovetail protrusion is set on one side of the upper end surface of the dovetail protrusion There are magnets that can be magnetically attached to the iron plate. The sound insulation board in the present invention can isolate the noise generated by the expressway, so as to avoid harm to the health of the human body. The extension section is slidingly installed in the sound insulation panel, and the height of the sound insulation can be adjusted according to the location of the noise source, so as to ensure that the noise generated by the road can be completely blocked and absorbed.

The invention discloses a labor-saving wing gate with the function of automatically opening a door in case of power failure, which comprises a case provided with a rack, wherein a guide rail is arranged on the front side of the rack; a wing plate, wherein the side, opposite to the rack, of the wing plate is fixedly connected with a guide wheel; a driving mechanism is arranged in the case and used for driving the wing plates to swing outwards out of the case or retract inwards; a power-off switching-off mechanism comprises a traction rope, an electromagnet attraction piece, a large gravity block arranged on the electromagnet attraction piece and an electromagnet installed below the bottom end of the guide rail; when the wing gate is powered on after being powered off, the wing plate swings outwards out of the machine box, the electromagnet attraction piece is synchronously driven by the traction rope to move upwards to make contact with the electromagnet, the electromagnet is powered on, when the wing gate is powered off after being powered on, the electromagnet is powered off, and the large gravity block drives the wing plate to retract inwards into the machine box through the traction rope. The invention has the beneficial effects of automatically opening the door and closing the gate without effort when power is off.

The invention discloses a suspension pump type algae suction device. The suspension pump type algae suction device comprises a floating body, floating boxes, suspension type fences and a clog-free pump. A front portion algae inlet and side algae inlets are formed in the front portion and the middle of the floating body correspondingly. The floating boxes are arranged at four corners of the bottomof the floating body correspondingly. The clog-free pump is mounted in the middle of the floating body. One end of each suspension type fence is arranged on a bank foundation, and the other ends of the suspension type fences are arranged at the connecting position of the front portion algae inlet and the floating body and the connecting positions of the side algae inlets and the floating body. According to the suspension pump type algae suction device, the front portion algae inlet and the side algae inlets are adopted to be matched with the two suspension type fences matched with the algae inlets, and therefore, algae water can be blocked and collected more effectively; and the good foundation is laid for subsequent filtration and elimination.

The invention discloses a cleaning device applied to thrombus prone to falling off in a blood vessel. The cleaning device comprises an interventional tube, a first telescopic tube is arranged at the interventional end of the interventional tube and can stretch out and draw back in the axial direction of the interventional tube, one end of the first telescopic tube is connected with the interventional tube, a connecting block is arranged at the other end of the first telescopic tube, and multiple elastic baffles are arranged between the connecting block and the interventional tube; a pluralityof inner supporting plates are further arranged on the circumferential outer wall of the interventional tube; one end of each inner supporting plate is hinged to the interventional tube, an inner supporting ball is arranged at the other end of each inner supporting plate, a movable assembly is arranged between each inner supporting plate and the interventional tube, an elastic first movable plateis arranged in each inner supporting plate, an elastic second movable plate is arranged in each first movable plate, and each first movable plate is further provided with an outlet matched with the corresponding first movable plate. When thrombus which is easy to move in a blood vessel is cleaned, the blood vessel can be expanded, the thrombus is prevented from being pushed to move in the blood vessel, and the thrombus can be conveniently and rapidly cleaned out of the blood vessel.

The invention provides a multistage algal water filtering apparatus capable of realizing suspension type algae suction. The multistage algal water filtering apparatus comprises an operation vehicle, awater-surface algae suction device and a vehicle-mounted algal water filter, wherein the water-surface algae suction device is specially applied to open channels and narrow rivers. The multistage algal water filtering apparatus can adjust the suspension height of algae suction according to the thickness of a blue algae layer so as to allow the blue algae layer to be sucked by a clog-free pump asmuch as possible, and suspension type fences fixed at a river bank are cooperatively used, so the apparatus is reasonable in structural layout, simple to operate and good in algae removing effect; thevehicle-mounted algal water filter can realize centrifugal filtration of algal water and self-cleaning of the apparatus in the process of centrifugal filtration; a cleaning system can cyclically useseparated clear water; and the multistage algal water filtering apparatus can save water resources and power resources, has the advantages of simple structure, convenient operation and low cost, can be promoted and applied in a wide range, and is especially applicable to large-scale algal water filtering in narrow water areas like open channels and rivers.

The invention discloses a tennis frame with a tennis ball collection function. The tennis frame with the tennis ball collection function is used for being placed on a tennis court to collect tennis balls which fly out of the court, and includes composite baffles which are arranged at the two ends of the tennis court respectively, the side, facing the tennis court, of each composite baffle is provided with a ball collection tank, the two ends of the ball collection tanks are connected with ball conveying grooves along the edges of the two sides of the tennis court, the other end of each ball conveying groove is connected with a support base, and the side, facing the tennis court, of each support base is provided with a support column; the inner side of each ball collection tank is providedwith inclined blocks, wherein the inclined blocks are inclined to the two ends of the ball collection tank by taking the center of the ball collection tank as a demarcation point respectively, the end, close to the support base, of each ball conveying groove is provided with a tennis ball hole, and each tennis ball hole is connected with a ball net. The tennis frame with the tennis ball collectionfunction reduces ball picker' physical strength waste caused by ball picking-up, collection of the tennis balls is facilitated, and the tennis trainers' practice efficiency is improved.

The present application discloses a display substrate, a preparation method, and a display device. The display substrate includes a display area and a non-display area. The non-display area includes a functional layer, a retaining wall arranged on the functional layer, and layer and the encapsulation layer of the retaining wall, the retaining wall includes a bottom surface close to the functional layer, a top surface opposite to the bottom surface, and opposite two sides, at least one side has a recessed structure, and the recessed structure makes the On a plane parallel to the display substrate, the length of the side on the plane is greater than the length of the side on the plane parallel to the display substrate when the side is a plane. In the embodiment of the present application, by adding a recessed structure to the retaining wall and changing the edge shape of the retaining wall, the short-circuit distance between two touch screen panel traces is increased and the risk of short-circuit is reduced.