64results about How to "Not easy to crack and damage" patented technology

A thin-wall hollow pipe for in-situ pouring bar reinforced non-beam concrete floor is composed of pipe wall and two end plugs, and is characterized by that each end plug has at least one thin strip for improving its tension, tension and compression resistance. Its advantages are simple structure, high strength, high crack, deformation and vibration resistance and low cost.

The invention relates to a prefabricated component for floor slabs, comprising a prefabricated concrete plate (1). The prefabricated component is characterized in that: in the prefabricated concrete plate (1), bar reinforced concrete materials (2) are arranged on a bottom molding board (3) and inside a side mold frame (4); an upper press plate (5) which moves in the vertical direction to pressurize is arranged above the bar reinforced concrete materials (2); a pressure head (6) is arranged under the upper press plate (5); a vibrator (7) is arranged on the bottom molding board (3) or/and the upper pressure head (6) or/and the side mold frame; the prefabricated concrete plate (1) is formed by pressing of upper pressure head (6) compression or vibrating pressure head (6) compression and simultaneously by vibration of the bottom molding board (3), thereby forming a plate-shaped component formed by pressurizing and vibrating an upper splint and a lower splint of a lower mold board and the upper pressure head (6). The prefabricated component can be applied to various constructions such as cast-in-place slab floors, roofs, walls, foundation mats and road and bridge works, and is especially suitable for hollow flat slabs.

The invention provides a flexible capacitive sensor based on conductive rubber. According to the sensor, flexible conductive rubber is used as a conductive pole plate, flexible pure rubber is used asa dielectric layer, a spraying process is utilized to prepare all layers of the capacitive sensor, and a surface microstructure is used as assistance. The prepared flexible capacitive sensor makes a remarkable signal response to an external load and can be used for stretching, compression and movement tests, wherein the pure rubber of the dielectric layer is prepared by mixing 80-90wt% of liquid rubber and 10-20wt% of a curing agent; the conductive rubber is prepared by mixing 40wt%-60wt% of liquid rubber, 10-15wt% of a curing agent, 20wt%-30wt% of a conductive filler and 10-20wt% of a diluent; and through layered spraying and step-by-step or overall curing, the flexible capacitive sensor with a good mechanical signal response is obtained. According to the capacitor, the conductive pole plate layer is conductive rubber, the dielectric layer is pure liquid rubber, and therefore the capacitor is a complete flexible sensor in a true sense.

The invention relates to the technical field of municipal construction, in particular to a municipal asphalt concrete pavement construction method. The method comprises the following steps of: S1, cleaning a roadbed; S2, laying a cushion layer: specifically, paving an asphalt gauze evenly in the clean roadbed, and spraying permeating oil to the gauze to form the cushion layer; S3, paving asphalt concrete: uniformly paving pre-mixed asphalt concrete on the cushion layer to form a pavement layer; and S4, compaction: compacting the pavement to obtain an asphalt concrete pavement. The asphalt concrete comprises the following components by mass: 5-10 parts of asphalt; 65-80 parts of coarse aggregate; 3-8 parts of fine aggregate; 8-13 parts of basalt fiber; 0.5-1 part of a coupling agent; 1-3 parts of triethylene glycol dimethacrylate; 0.5-1 part of clotrimazole; and 0.1-0.3 part of tridecyl phenyl ketone. The method has the effects of improving the anti-fatigue performance and anti-ruttingperformance of the asphalt concrete pavement.

The invention discloses a waterproof connecting structure of a deformation joint of a building roof. The waterproof connecting structure comprises a waterproof roll layer, a fireproof rock wool layer,a waterproof elastic material connecting band, an elastic rubber band, the deformation joint and a waterproof aluminum plate. The deformation joint is arranged between a first concrete wall body anda second concrete wall body. The fireproof rock wool layer, the waterproof roll layer and the waterproof aluminum plate are sequentially laid on the top of the deformation joint from bottom to top. Prefabricated grooves are formed in the first concrete wall body and the second concrete wall body on the two sides of the deformation joint, pre-embedded anchor cables are arranged in the first concrete wall body and the second concrete wall body, locking heads are fixed into the pre-embedded anchor cables and connected with locking plates, the locking plates are arranged in the prefabricated grooves, bolt holes are formed in the locking plates, connecting bolts penetrate into the bolt holes, and the connecting bolts sequentially penetrate through clamping arms, the bolt holes of the locking plates, cushion plates and U-shaped glands from top to bottom to be connected with nuts. Assembly and disassembly are convenient, mounting and replacing of the fireproof elastic material connecting bandor the elastic rubber band are convenient, and operation is convenient.

The invention discloses a glass fiber-reinforced vegetation form porous concrete and a construction method thereof. The construction method comprises the following steps: (1) uniformly mixing cement,water, an admixture and an aid, and preparing cement paste; (2) blending and stirring wetted coarse aggregates with the cement paste prepared in the step (1), so as to obtain coarse aggregates with the surfaces packaged with the cement paste; (3) pouring the coarse aggregates obtained in the step (2), simultaneously jetting chopped glass fibers to the surfaces of the coarse aggregates to adhere the glass fibers into the cement paste on the surfaces of the coarse aggregates, enabling the glass fibers and the coarse aggregates to simultaneously fall into a mold, and carrying out compaction and maintenance, so as to obtain the glass fiber-reinforced vegetation form porous concrete. By utilizing the construction method provided by the invention, the glass fibers with relatively high adding quantity can be added; by virtue of the jetted glass fibers, the situation that the cement paste on the surfaces of the coarse aggregates runs off downwards to block communication holes of the concrete is avoided; and the compressive strength and breaking strength of pervious concrete are remarkably improved, so that the pervious concrete is unlikely to be broken.

The invention discloses a tapered sealing pipe connector for an excavator. The tapered sealing pipe connector comprises a connector body, a nut, a first connection pipe, a sleeve and a second connection pipe. The connector body comprises a big pipe segment, a small pipe segment and a bent pipe segment. The connector body is formed by sequentially connecting the small pipe segment, the bent pipe segment and the big pipe segment. The small pipe segment is connected with the second connection pipe. The joint of the small pipe segment and the second connection pipe is sleeved with the sleeve. The big pipe segment is connected with the first connection pipe through the nut. The big pipe segment is a segment of straight pipe. The outer ring of the tail end of the straight pipe is provided with external threads. A tapered opening is formed in the big pipe segment. The big end of the tapered opening faces the outer end of the connector body. The first connection pipe is provided with a first O-shaped sealing ring. The small pipe segment comprises a mounting head, a groove and a ladder axial segment. According to the tapered sealing pipe connector for the excavator, through tapered sealing connection, sealing performance can be well achieved, connection can be achieved quickly and conveniently, the connection part is made to be even in stress and not prone to damage and cracking, stability is improved, service life is prolonged, airtightness is good, safety performance is high, and the tapered sealing pipe connector is convenient to assemble.

The invention relates to a floor precast slab, which comprises a precast reinforced concrete board (1) and is characterized in that: a convex reinforcing rib (2) is arranged on a board surface of the precast reinforced concrete board (1) and is a reinforcing rib which is formed by compression of a reinforcing rib pressure head. The floor precast slab is suitable for various cast-in-situ concrete floors, roofs, walling, base slabs and structures of pipe bridge projects and is particularly suitable for hollow flat slabs.

The invention provides a large high-temperature-resistant storeroom and an installation method thereof. The large high-temperature-resistant storeroom comprises a storeroom door, a storeroom body and a base. The storeroom body is a hollow sealed cubic formed by a top panel, lateral panels and a bottom panel. The storeroom door which can be opened and closed is installed on one lateral panel. The base used for bottom leveling is arranged under the bottom panel of the storeroom body. The top panel, the lateral panels and the bottom panel of the storeroom body are each formed by splicing unit plates in a sealed mode. Each unit plate comprises a color steel plate on the surface layer, a zinc-plated plate on the middle layer and a stainless steel plate on the inner layer, wherein filling layers are arranged between the color steel plate and the zinc-plated plate and between the zinc-plated plate and the stainless steel plate. The storeroom provides a larger stable high-temperature environment which is more resistant to high temperature.

The invention discloses a hot extrusion die with an improved lower die choke flow structure. The hot extrusion die comprises an upper die and a lower die, which can be superposed and connected together back and forth, wherein a flow guide plate is arranged at a feeding end of the upper die; a plurality of bridge sites are arranged on the flow guide plate; tap holes are formed among the bridge sites; a core head is arranged at a discharge end of the upper die; a welding chamber, a molding hole and a discharge hole, which are communicated with one another, are sequentially formed in the lower die from the feeding end to the discharge end; the welding chamber is communicated with the tap hole of the upper mold; the core head of the upper mold is inserted into a molding hole of the lower mold; and a circle of spiral structure of which the axial height is gradually reduced is arranged on the bottom surface of the welding chamber of the lower mold. Welding lines on the surface of the product which is molded from the material disclosed by the invention by the molding hole are slight or even disappear; the slight welding lines also extend in a spiral curve manner; the hot extrusion die is high in overall strength, and is not easily fractured or damaged when being subjected to bending, cold drawing and stretching; and the product is high in surface accuracy and small in dimension error.

The invention discloses a preparation process and application of photosensitive resin for 3D printing. The process comprises the following steps of: 1) weighing organic silicon resin powder, an organic solvent and a silane coupling agent in parts by weight and adding the components into a first container to be stirred and mixed in a forward and reverse rotation alternating mode, the silane coupling agent being prepared by weighing silane, alcohol, water and acetic acid in parts by weight and mixing the components; 2) adding a catalyst, mixing and stirring the components until a transparent anduniform first liquid is obtained, respectively weighing a complexing agent and metal alkoxide according to parts by weight, and adding the components into a second container, mixing and stirring themetal alkoxide and the complexing agent in a forward and reverse rotation alternating manner until a transparent and uniform second liquid is obtained; 2) adding the first liquid into a third container, pre-stirring the first liquid, adding a second liquid, mixing and stirring the first liquid and the second liquid, adding an active diluent, and mixing and stirring all the components; 3) adding aphotoinitiator into the third container, and continuously stirring the mixture to obtain the 3D printing photosensitive resin.

The present invention relates to a light permanent form for filling concrete. It includes a light form body; said light form body includes upper plate, peripheral side plate and lower plate. It is characterized by that in the light form body at least one hole is set, said hole is passed through upper and lower surfaces of said light form body, and can be used for in-situ pouring concrete. Said light permanent form is applicable to cast-in-situ reinforced concrete or prestressed reinforced concrete hollow floor, roof, wall body, foundation baseplate and open-web bridge, specially, it is applicable to hollow beamless floor.

A mold-shell member is composed of top plate(1) and peripheral side walls(2). Said top plate(1) and peripheral side walls(2) are enclosed into an open basin-shaped member, a top plate(1) scuttle(51) is set in the middle of said basin-shaped member top plate(1), said open basin-shaped member is connected by at least two shell plates(53) at corner. It can be used for various hollow and beamless building roofs of cast-in-situ reinforced concrete or pre-stressed reinforced concrete, basic baseboard, wall and bridges.

The invention discloses a pod-shaped elastic supporting rod device which comprises an upper pod section and a lower pod section, and the edges of the two sides of the upper pod section and the edges of the two sides of the lower pod section each comprise a bonding face and a straight face; tooth grooves which are arranged at intervals are sequentially formed in the straight surface, the tooth grooves of the upper bean pod section and the tooth grooves of the upper bean pod section are arranged in a crossed mode, a toughening type fiber sheet is arranged between every two adjacent tooth grooves, high-toughness glue is coated on the toughening type fiber sheets and the bonding surface, and the upper bean pod section and the lower bean pod section are connected in a bonding mode through the high-toughness glue. The tooth grooves which are arranged at intervals are sequentially formed in the straight faces of the upper pod section and the lower pod section, the tooth grooves of the upper pod section and the tooth grooves of the lower pod section are arranged in a crossed mode, the toughening type fiber sheets are arranged between the adjacent tooth grooves, and the toughening type fiber sheets and the bonding faces are coated with the high-toughness glue. The upper bean pod section and the lower bean pod section are bonded together through the high-toughness glue, so that when the device is flattened or curled, cracking damage is not prone to being generated, and the breakage rate is reduced; and the bearing capacity and the yield are improved.

The present invention relates to a light permanent form for filling concrete. It includes light form body. Said light form body includes upper plate, peripheral side plate and lower plate which are mutually connected together and formed into a closed hollow cavity. It is characterized by that it also includes a tube for making through hole, and said tube for making through hole is placed in the closed hollow cavity. Said light permanent form can be used for in-situ casting reinforced concrete or prestressed reinforced concrete hollow floor, roof, wall body, foundation bedplate and open-web bridge, etc.

The invention relates to the technical field of garbage treatment, in particular to a novel environment-friendly domestic garbage treatment method. According to the method, domestic garbage is subjected to graded stirring treatment, according to different densities of the domestic garbage, the domestic garbage is pre-divided into two types of metal sandstone garbage and organic plastic garbage, the organic plastic garbage is preliminarily extruded and dehydrated and then sprayed with bacterial liquid for fermentation, organic perishable substances are further decomposed through bacteria in thefermentation process, the organic perishable substances can be further dried, the odor of a working workshop can be effectively reduced through fermentation and decomposition under a low water content environment, the environment of a treatment workshop is improved, organic matters in the micro-carbonized organic garbage are subjected to anaerobic pyrolysis through a pyrolysis furnace, extractedpyrolysis gas can be stored in a gas storage tank to be used as fuel gas, efficient resource conversion is carried out on the domestic garbage, and the method has a wide application prospect.

The invention provides a rear shock absorption regulating structure for a motorcycle. The rear shock absorption regulating structure comprises a lower dust cover and a tubular regulator. The regulator is made of tubes. Regulating teeth are arranged at the lower end of the regulator. A boss is arranged on the outer wall of the upper end of the regulator. The inner wall of the upper portion of the lower dust cover is supported by the boss. The invention further provides a shock absorber which comprises the rear shock absorption regulating structure for the motorcycle and further comprises a damper and an outer spring. A stroke fixing device is installed on the damper. The damper is sleeved with the regulator. The regulator is covered with the lower dust cover. The regulating teeth of the regulator are matched with the stroke fixing device. The damper is sleeved with the outer spring. The lower end of the outer spring abuts against the outer wall of the upper portion of the lower dust cover. A traditional board coiling structure is changed, the structure is integrally formed in a stamping mode through a steel pipe, the strength of the regulator is improved, and the regulator is not prone to cracking or damage. Through the cooperation of the boss and a clamping block, the regulator and the lower dust cover are installed and matched more firmly; meanwhile, the regulator can be operated through the lower dust cover conveniently and the height is regulated.