100results about How to "No need to dismantle" patented technology

The invention relates to a steel-concrete composite bridge and a construction method thereof. The novel steel-concrete composite bridge is characterized by comprising main beams, a cast-in-situ SAP (Super Absorbent Polymer) internal curing concrete bridge panel and shear studs, wherein clustered or uniformly-distributed shear studs are arranged on the main beams; a plurality of main beams are erected in a splicing way along the transverse direction of the bridge; all the main beams are connected into a whole through an end connecting plate along the longitudinal direction of the bridge, thereby forming a multi-hole connection structure; the top surfaces of the main beams are provided with open stiffening ribs, and are coated with an epoxy resin bonding layer; an SAP is poured on the epoxy resin bonding layer to realize internal curing; a cast-in-situ SAP internal curing concrete bridge panel is formed by concrete; the shear studs, longitudinal and transverse reinforcing meshes and the open stiffening ribs are positioned in the cast-in-situ SAP internal curing concrete bridge panel. An FRP (Fiber Reinforced Polymer/Plastic) board or an upper flange steel board of a T-shaped steel beam is a template which is light, has high strength and high stress performance and does not need to be detached; SAP internal curing concrete has a weak shrinking and gradual changing effect, so that the problem of tendency to cracking when the conventional concrete bridge panel is too large and too thin is solved; the influence of floor stand construction on urban traffic is lowered remarkably.

The invention relates to a novel biologically degradable macromolecular external securing material for medical purposes, wherein the essential component of the material is polylactic acid, or can be added poly gamma-caprolactone, inorganic mineral substance (such as calcium carbonate, titanium white, talcum powder, barium sulfate, montmorillonite), silicon alky coupling agent or coloring agent. The invention also discloses its preparation process.

The invention provides a novel antiskid and antidrift device for automobile tires. The device, arranged on the steel ring, comprises a ground grabber which is telescopic under a certain pressure and directly contact with the ground. On the soft, wet and slippery mud or snowfield, the ground grabber is pressed into the soft ground under a certain pressure, thereby performing an excellent antiskid function. When on the hard cement road, the ground grabber is pressed back by a larger pressure and is bounced out for loss of pressure, thus guaranteeing the normal driving of the device on cement roads without damaging to each other. The device with a good antiskid and antidrift effect greatly saves the fuel when driving on snowfield, muddy or sandy roads and significantly increases the safety factor.

A measuring device (1) for measuring a diameter of a cylinder (17) in an engine. The measuring device (1) is characterised in that the measuring device (1) comprises a measuring rack (2), further comprising at least two rack supports (5, 6, 7), whereineach rack support (5, 6, 7) has an inner end, said inner ends being connected to each other, a rotatable measuring holder (3) adapted to rotate in a plane which is perpendicular to central axis of the cylinder, further comprising at least one measuring unit (9), wherein said measuring unit (9) is adapted to provide a measurement in said plane and substantially radially with regard to the cylinder (17), a rotation motor (4), wherein said measuring rack (2) and said rotatable measuring holder (3) are attached to each other, and said rotatable measuring holder (3) is rotatable relative to said measuring rack (2) by said rotation motor (4). A method for measuring a diameter of a cylinder (17) in an engine is also presented.

The invention discloses a disposable building formwork and belongs to the technical field of building construction. The disposable building formwork is characterized by comprising a base layer formed by rolling filler aggregate and a surface layer and a bottom layer of a building decorative surface matched on an upper surface and a lower surface of the base layer; the filler aggregate comprises industrial wastes and various matched additives, wherein the additives comprise water reducing agents and gelatinization materials; the surface layer is provided with uneven patterns. The disposable building formwork is made from the industrial wastes, effectively treats electronic wastes and saves a large number of resources; amoreover, the cast disposable building formwork is integrated with reinforced concrete, does not need dismantling, saves separant painting, formwork cleaning, dismantling and secondary conveying required in a common technology, reduces the casting volume of the concrete and greatly saves both labor and financial resources.

The invention relates to the field of ultra-deep foundation pit supporting at underground-water-rich areas, in particular to a foundation pit supporting structure and a foundation pit supporting method. Supporting piles are arranged on the inner wall of a foundation pit; at least part of each supporting pile is buried underground; prestress anchor cables are arranged at an excavation part; water drainage wells are arranged at a soil body at the periphery of the foundation pit; each prestress anchor cable comprises a fixed end which is fixed on the inner wall of the foundation pit and an anchoring end which is deep in the soil body; the water drainage wells are arranged at positions close to the anchoring ends; and the distance between the well bottom of each water drainage well to the ground is greater than or equal to the distance between the corresponding anchoring end to the ground. According to the foundation pit supporting structure and the foundation pit supporting method, supporting of the ultra-deep foundation pit with a high underground water level is realized through the supporting structure consisting of the supporting piles, the prestress anchoring cables and the waterdrainage wells; the space in the foundation pit is not occupied by the supporting structure, so that deep foundation pit construction work for foundation pits with small areas is facilitated; besides,disassembly is not need, and later-period construction is not affected; and a later-period supporting effect is realized for the foundation pit.

The invention discloses an intestinal double-cavity fistulization excrement transferring device. The device comprises a bent pipe, the bent pipe is made of rubber, and air bags are arranged on the outer sides of two ends of the bent pipe in a surrounding mode; the air bags are connected with inflation pipes, a one-way valve is arranged at one end of the bent pipe, and a transparent cover is arranged on the outer side wall of the corner of the bent pipe. After systematic inspection, an intestinal stoma reduction operation is not conducted vexedly, the intestinal double-cavity fistulization excrement transferring device is used for continuing inspection, and with the assistance of the bridge connection effect of the transferring device, contents of an enteric cavity at the near end of a stoma pass through the transferring device and then enter an enteric cavity at the far end of the stoma; physiological status of an intestinal tract after the stoma reduction operation is simulated, the reaction of the original far-end diseased intestinal tract under the stimulus of the intestinal contents is observed, and when it is determined that pathological factors of the original far-end intestinal tract are completely removed, and then the intestinal stoma reduction operation is conducted. The situation is avoided that a patient is also compelled to be subjected to a near-end intestinal fistulization operation due to original disease recurrence of the far-end intestinal tract after the stoma reduction operation and accordingly the body and spirit of the patient get hurt.

The invention relates to a connecting mould plate for inside corner and outside corner and with adjustable angle. The connecting mould plate comprises a flat mould plate A, a flat mould plate B, adjustable connecting pieces and shaping and protecting corners. The flat mould plate A and the flat mould plate B are composed of plates, horizontal edges with holes, and longitudinal edges with holes; one lateral side of the flat mould plate A is hinged to one lateral side of the flat mould plate B by a connecting shaft to form a symmetrical structure with connecting shaft as center, and the workingfaces are on the same side; a plurality of adjustable connecting pieces are arranged on the non-working sides of the flat mould plate A and the flat mould plate B; two ends of the adjustable connecting pieces are detachably fixedly connected with the flat mould plate A and the flat mould plate B; the flat mould plate A and the flat mould plate B rotate around the connecting shaft, and the includedangle of the flat mould plate A and the flat mould plate B can be adjusted in a range from 5 degrees to 355 degrees; after the angle is adjusted, the flat mould plate A and the flat mould plate B arelocked and fixed by the adjustable connecting pieces; and smooth transition of connecting portions of the workpieces is achieved by the shaping and protecting corners. The structure is simple, use isflexible and convenient, the recycle rate is high, construction efficiency is improved and construction cost is lowered.

The invention discloses a pulley with a composite structure, which comprises a nylon wheel body provided with a rope groove, an oil nozzle is arranged on the wheel body, and a rotating shaft and a bearing thereof movably connected to the wheel body, the inside of the wheel body and the bearing There are bushings between them, and the axial ends of the rotating shaft are respectively covered with dust-proof covers, and oil holes are arranged on the dust-proof covers. The invention can greatly increase the running speed and load of the pulley, and can prevent the direct contact between the bearing and the nylon, and the phenomenon of loosening and swimming of the bearing during operation due to the difference in expansion coefficient, thereby improving the service life of the bearing. At the same time, because the oil outlet hole is set on the dust cover, it is very convenient to clean the bearing without dismantling the whole pulley.

The invention belongs to the technical field of civil engineering and discloses a combined multifunctional steel bar cage manufacturing framework and manufacturing method. The combined multifunctionalsteel bar cage manufacturing framework comprises a framework body, a main rib positioning plate and bearing beams. The framework body is provided with arc moulding beds matched with a steel bar cageto be manufactured; the main rib positioning plate rolls in a matching manner or is slidably supported on the moulding beds, main rib placing grooves are distributed in the main rib positioning plate,and main ribs of the steel bar cage are matched in the main rib placing grooves; and the bearing beams are used for supporting and steadying the steel bar cage in a welding process. The combined multifunctional steel cage manufacturing framework is reasonable in design, steady in support, convenient for machining and rapid in disassembly and assembly, not only can be used in a machining shed, butalso can be used nearby a construction site and a pile site for directly hoisting the steel bar cage or steel bar framework to be directly in position.

The invention discloses a grounding cutter of a rail traffic grounding device and belongs to grounding mechanisms for overhauling grounding and faulty emergency maintenance grounding of a rail traffic direct-current power supply system. A movable contact cutter is fixed on an insulating rotating shaft, a copper stranded wire is connected between the movable contact cutter and a conducting board, and the conducting board is fixed on two insulators. A fixed contact cutter is composed of a plurality of copper sheets shaped like a Chinese character 'ao' in fixed mode, the fixed contact cutter is fixed on the upper portion of a fixed contact arm which is a right-angle copper board member, and the vertical portion of the fixed contact arm is a flatly-bent acute angle. The fixed contact cutter is fixed on the other two insulators, and the fixed contact arm and the conducting board are respectively connected with a contact rail and a travelling rail of rail traffic through cables. The grounding cutter of the rail traffic grounding device has the advantages of being simple and compact in structure, large in mechanical strength, long in service life and reliable in grounding.

The invention relates to a roller bed type ceramic drying kiln bar scraping device. The roller bed type ceramic drying kiln bar scraping device is provided with a bar scraping die, a steel wire rope and a body platform; the bar scraping die is provided with a connecting hole, sawteeth are arranged on one surface of the bar scraping die, the body platform is provided with a roller and a fixing rod,the steel wire rope is arranged on the fixing rod, one end of the steel wire rope is connected to the bar scraping die through the connecting hole, and the other end of the steel wire rope is wound on the roller; and the roller rotates to enable the steel wire rope to pull the bar scraping die to conduct bar scraping. By means of the roller bed type ceramic drying kiln bar scraping device, the efficiency for removing bar nails can be improved, and the bar nails can be thoroughly removed.

The invention relates to a power-assisted umbrella head for a tent, which comprises an upper umbrella head and a lower umbrella head. The lower umbrella head can move axially relative to the upper umbrella head; It is hinged with the connecting piece, and the other end is hinged with the lower umbrella head to form a triangular support structure; it also includes an independent booster assembly; the booster assembly includes a sleeve, an elastic piece and a clip; the elastic piece is pre-tensioned by the clip Encapsulated in a sleeve; the sleeve is detachably fixedly connected to the upper umbrella head and slidably sleeved in the lower umbrella head; the lower umbrella head is driven by the clamp to compress the elastic member axially; the umbrella head adopts an independent spring The sleeve independently carries the powerful booster component, which has the characteristics of modularization, can be assembled independently, integrated assembly, modular disassembly and replacement, which simplifies the installation and replacement procedures, reduces the difficulty, ensures the installation accuracy, and can be used as a common core component; The booster umbrella head provides booster for the tent during the tent stretching process.

The invention discloses a cable crossing device for power construction. The device comprises a transport vehicle, a support frame and a mounting table are mounted on the transport vehicle, wherein a lifting mechanism is mounted on the mounting table, a support mechanism is mounted at the top of the lifting mechanism, and a first connecting rod and a second connecting rod are mounted on the liftingmechanism; one ends of the first connecting rod and the second connecting rod are installed on the lifting mechanism, and the other ends are installed on the supporting mechanism. The device only needs to be moved to a working position under the action of a transport vehicle, assembling and disassembling are not needed, the working efficiency is greatly improved, the lifting mechanism can expandthe supporting mechanism, the purpose of crossing obstacles is achieved, erecting of cables is achieved, the lifting mechanism can fold the supporting mechanism, and the device is convenient to use and high in practicability; safety of the device in the transportation process is guaranteed, the stability of the device is guaranteed through the arrangement of the two supporting mechanisms, the situation that the device inclines and even is damaged due to uneven stress in the working process is prevented, and the service life of the device is greatly guaranteed.

The invention discloses a jacking system for a main bridge of a large-span tied arch bridge and a jacking construction method. The system comprises a left main bridge jacking device and a right main bridge jacking device, wherein each arch bridge superstructure comprises a left arch bridge composite structure, a right arch bridge composite structure and multiple crossbeams, each arch bridge composite structure is a steel tube concrete tied arch and comprises a girder and an arch rib, and each main bridge jacking device is arranged under each arch bridge superstructure. The jacking constructionmethod includes the steps of firstly, jacking device installation; secondly, jacking; thirdly, jacking device disassembling; and fourthly, bridge substructure jointing. The system is reasonable in structural design, simple and convenient to construct and good in use effect, the left main bridge jacking device and the right main bridge jacking device which are arranged symmetrically are adopted for vertically jacking the bridge superstructures, vertical jacking devices and auxiliary supporting structures are adopted in the main bridge jacking devices to cooperate for jacking, multiple steel bar supporting cushion blocks are adopted to form a temporary supporting structure below a jack, the supporting strength is large, the bearing effect is good, and no dismantling is required in the laterperiod.

The invention discloses an electromigration device adopting an electroconductive cement based material as an anode and a method for repairing decaying concrete. The device comprises a metal net, an electroconductive cement based material mounting trough and a function material area. The electroconductive cement based material mounting trough is of a trough-shaped structure with an opening formed in one face, and the metal net is arranged in the trough bottom and is connected with an electric conduction wire extending to the outer portion of the trough bottom. The function material area is arranged in the electroconductive cement based material mounting trough, and a hole is formed in the trough side wall. Compared with the prior art, the electromigration device adopting the electroconductive cement based material as the anode is novel in design and high in practicality; and the defect that the anode in the electromigration device is prone to being rusted and damaged can be overcome well; repeated repairing can be achieved, dismounting is not needed, meanwhile, chloridions guided out by electromigration can be cured, a new technical method can be provided for bidirectional migrationof electromigration dechlorination and electromigration guide-in repair material, and great significance is achieved in repairing decaying concrete and prolonging the service life.

The invention provides a carbon fiber thermal insulation cured felt. The carbon fiber thermal insulation cured felt comprises an inner felt layer, a middle felt layer and an outer felt layer, whereinthe inner felt layer and the outer felt layer are respectively adhered to the two sides of the middle felt layer; the densities of the inner felt layer, the middle felt layer and the outer felt layerare reduced in sequence; the thicknesses of the inner felt layer, the middle felt layer and the outer felt layer are increased in sequence; the inner felt layer is filled with a carbon/carbon composite material; the middle felt layer is filled with a hard fiber hard felt. The carbon fiber thermal insulation cured felt has the advantages that the inner felt layer, the middle felt layer and the outer felt layer are compounded through resin and a carbon binder, the high temperature deformation resistance capacity of the inner felt layer can be enhanced through the adding of the carbon binder andthe improvement of the density of the inner layer thermal insulation felt, the structure is low in cost, an inner felt layer adopting a separated structure is fixed through a countersunk nut and a hard felt, in order to solve the problem of fixing of a thin carbon plate, the carbon plate is pressed into a local strengthened irregular structure, after a carbon/carbon protective plate loses effectiveness, a protective plate in the innermost layer is only required to be replaced, the structure is beneficial to the reduction of failure rate, and the service life is prolonged.

The invention relates to a special fixing device for the air permeability flow rate disc detection of tobaccos. The special fixing device is characterized by comprising an upper base seat and a lower base seat which are respectively and fixedly arranged on a machine frame, wherein an upper positioning block provided with a center through hole is connected onto the upper base seat and can be upwards turned around a turning shaft pin, a lower positioning block provided with a center through hole is arranged on the lower base seat, in addition, the upper surface of the lower positioning block isprovided with a cylindrical sinking cavity, a flow rate disc to be measured can be placed between the upper positioning block and the lower positioning block, pressure measuring openings communicatedwith the center through holes of the corresponding positioning block are respectively arranged on the side walls of the upper positioning block and the lower positioning block, and the lower matchingsurface of the upper positioning block and the upper matching surface of the lower positioning block are respectively provided with sealing rings. Through the special fixing device, the air permeability flow rate disc is fixed, is tightly clamped by an elbow clamp and is sealed by rubber sealing rings, only corresponding fittings in the upper positioning block and the lower positioning block needto be replaced for different flow rate standard elements, and in addition, different-type air permeability flow rate discs of different manufacturers can be fast replaced through opening the elbow clamp and turning the upper positioning block of the flow rate disc around the turning shaft pin to be opened.

The invention relates to a concave center flat car reinforcing device which comprises turnover type reinforcing ring assemblies and detachable reinforcing assemblies which are symmetrically installed at the bent corner portions of the two longitudinal ends of a concave center frame respectively, the turnover type reinforcing ring assembly comprises a ring base and a reinforcing ring, the ring base and the reinforcing ring are connected through a hinge, the ring base is installed on the concave center frame, the reinforcing rings and flexible reinforcing pieces are matched to longitudinally pull and reinforce the two ends of goods together without disassembly. The detachable reinforcing assembly comprises a reinforcing base and an upper backstop, the reinforcing base is connected with the upper backstop through a first fastener, and the detachable reinforcing assembly is used for reinforcing the upper portion of goods and can be disassembled and assembled according to loading requirements. The turnover type reinforcing ring assembly and the detachable reinforcing assembly can effectively solve the technical problem that an existing fixed type reinforcing ring and an existing fixed type reinforcing block which are arranged on the surfaces of the bent corner parts at the two longitudinal ends of the concave underframe in a protruding mode are prone to interference with long and large goods in the loading process, repeated use can be achieved, and the reinforcing cost is reduced.

The invention discloses a large-span tie bar arch bridge transformation method based on a bridge hydraulic jacking system. A bridge to be transformed comprises a main bridge and two approach bridges.In terms of the transformation of the bridge to be transformed, the transformation method comprises the following steps of 1, carrying out bridge jacking and construction on the newly-built approach bridges, and specifically carrying out jacking construction on a to-be-jacked bridge upper structure of the bridge to be transformed and to-be-jacked approach bridge main beams 1 of the two approach bridges through the bridge hydraulic jacking system; and 2, carrying out subsequent construction. The method has the advantages of being reasonable in design, simple and convenient in construction and good in use effect; jacking for the main bridge and jacking for the two approach bridges are carried out correspondingly, structures and arrangement positions of an approach bridge jacking system and amain bridge jacking system which are adopted are specifically limited, thus being capable of conveniently and rapidly completing the jacking construction process of the large-span arch bridge, and the jacking process is safe and reliable; and in addition, while jacking is carried out on the original bridge upper structure, the two approach bridges on the front and rear portions are newly constructed so that backfilling workload can be effectively reduced, and the construction period can be shortened as well.