32results about How to "To connect" patented technology

The invention relates to bait added with vegetable fiber and a preparation method thereof. The bait added with vegetable fiber comprises the raw materials of traditional bait and vegetable fiber. The traditional bait consists of raw materials and additives, wherein the raw materials comprise seeds, bran, dregs and animal proteins; and the additives comprise oxidants, mildew preventives, adhesives, coloring agents, flavoring agents and food attractants. The plant fiber is a mixture containing one or two of wood fiber and grass fiber. The wood fiber and the grass fiber can be uniformly distributed in the fishing bait, can achieve the effects of connection, cracking resistance, strength enhancing and bait atomizing improvement, and does not cause environmental pollution; and the bait is ideal for fishermen.

The invention discloses an establishing method of an LED filament lamp and the LED filament lamp. A lamp bulb shell and a lamp cap are arranged outside an LED light source core assembly, the LED light source core assembly is connected with the lamp cap through a wire, and then the LED filament lamp is formed. The LED light source core assembly is composed of an LED filament set, a built-in LED drive power supply module and wiring columns. The two ends of the LED filament set are connected to the fixed welding points of the built-in LED drive power supply module through the wiring columns playing a supporting role; or, the serial-connection points of the LED filament set are also connected to the fixed welding points of the built-in LED drive power supply module through the wiring columns playing the supporting rod. The establishing complexity of the LED filament lamp can be reduced. When LED filament lamps of different typical forward voltage grade requirements are established through non-voltage-reduction rectifying power supply under different mains supply voltage grades, an LED filament can have higher universality and interchangeability.

The present invention belongs to the field of new polymer material, and discloses one kind of nanometer modified high performance acrylic acid size and its preparation process. The acrylic acid size is prepared with nanometer level titania powder, acrylic acid, acrylamide acrylonitrile and butyl acrylate as main synthesized material, oleic acid as modifier and ammonium sulfate as initiator. Owing to the nanometer material with reinforcing effect, wear resistance and high permeability, and the acrylic acid monomer with functional group similar to that in fabric fiber structure, the size has excellent permeating and coating performance and high adhesion, forms complete, antiwear, tough and elastic size film, and may be used in sizing fabric of cotton, Dacron, etc. including fabric warp with high density and high weaving difficulty.

The invention discloses an ultraviolet-cured polyurethane-based conductive silver paste and a preparation method thereof. The preparation method comprises the following steps: heating an active monomer to 40-60 DEG C, dissolving a photoinitiator in the active monomer, cooling to 20-35 DEG C, mixing the active monomer with superfine spherical silver, after ultrasonic dispersion, sequentially adding a polyurethane prepolymer and flake-like silver powder, stirring and grinding to obtain conductive silver paste, wherein the conductivity of the ultraviolet-cured silver paste is 7.59*10<5>S / m to 1.32*10<6>S / m, and the conductivity of the ultraviolet-cured silver paste is still 7.82*10<4>S / m to 3.38*10<5>S / m after a bending test is performed for ten times. The ultraviolet-cured polyurethane-based conductive silver paste prepared by adopting the preparation method is high in conductivity, excellent in flexibility, strong in adhesive force to a polyethylene glycol terephthalate base material, and less in dosage of the photoinitiator, and can be widely applied to flexible printed circuits such as a keyboard, a mobile phone, a flat computer and a digital camera.

The invention discloses a wire harness isolation compound sheet, a battery module and a battery management system. The wire harness isolation compound sheet comprises an upper-layer membrane, a lower-layer membrane and a current collection component used for collecting voltage signals and temperature signals, wherein the current collection component is at least partially laminated between the upper-layer membrane and the lower-layer membrane and comprises a plurality of connection sheets which are arranged at intervals, a plurality of voltage collection wires and a plurality of temperature collection wires; a first avoiding part used for welding the connection sheets is arranged on the upper-layer membrane; a second avoiding part with shape matched with the shape of the connection sheets is arranged on the lower-layer membrane. According to the wire harness isolation compound sheet in the embodiment, the upper-layer membrane and the lower-layer membrane are used for replacing injectionmolding parts used as wire harness isolation plate main bodies in the prior art; the thickness of the wire harness isolation compound sheet is reduced; simplicity, lightness and thinness of the wireharness isolation compound sheet are improved.

The invention provides a high-power thermally superconducting plate-fin combined radiator for rail transit, comprising: a thermally superconducting plate; a plurality of first bottom substrate spacers, the first bottom substrate spacers being positioned between partially adjacent thermal superconducting plates; a surface contacting with that thermal superconducting plate on both side of the spacerstrip of the first bottom substrate is provided with a first channel, and a plurality of through holes are arrange on the spacer strip of the first bottom substrate; a second bottom substrate spacerstrip positioned between adjacent bottom substrate spacer strip groups; at least one side of that space strip of the second bottom substrate is provided with a second channel on the surface contactingwith the thermal superconducting plate; the surface of the thermally superconducting plate contacting with the spacer strip of the first bottom substrate and the surface of the thermally superconducting plate contacting with the spacer strip of the second bottom substrate are provided with connecting through holes. A heat dissipation fin located on at least one surface of the thermally superconducting plate; The flange is located at the periphery of the thermal superconducting plate, the first bottom substrate spacer, the second bottom substrate spacer and the heat dissipation fin. The invention can effectively solve the problem that the temperature of the power device is not uniform.

The invention provides a floating winding device and a winding method thereof. A method that the winding device floats along with a core rod is used, a central line approaching state is reached through a deviation rectification apparatus, large deviation of the core rod of a hose is achieved through hinge connection on the premise that an opening mechanism approaches to the center of the winding device to follow the center of the core rod to move, deviation of the core rod of the hose in the circumferential direction can be solved through deformation of an elastic support mechanism, an opening and a spline disc are moved along with the core rod through butt joint positioning of a steel wire rope and a spline disc mechanism during operation, and accordingly, the opening and the spline disc mechanism share a same central position with the core rod of the hose. By means of the floating winding device and the winding method thereof, uneven winding of steel wires or steel wire ropes caused by bending and gravity sinking of the core rod of prior fixed winding methods and devices is overcome, surface layouts of the steel wires or steel wire ropes are improved, and the anti-blasting capacity of the hose is improved.

The invention relates to the technical field of electromagnetic shielding material preparation, and in particular to a method for preparing a coated electromagnetic shielding material. Toluene diisocyanate, isophorone diisocyanate and polyethylene glycol as raw materials are reacted to obtain an elastic polyurethane prepolymer, and a photo-curing initiator, nano-spherical silver powder and flake silver powder are added to the elastic polyurethane prepolymer to obtain the coated electromagnetic shielding material. The electromagnetic shielding material can coat light matrixes such as plastics to achieve electromagnetic shielding effect, and the cost of the electromagnetic shielding material is effectively controlled while the electromagnetic shielding effect is guaranteed. Nano-conductive particles aggregate with each other by Brownian motion of the nano-conductive particles to form a conductive network, and the conductivity of the electromagnetic shielding material after curing is improved. In addition, in the process of UV light curing of the coating, the filling effect of conductive silver particles in pores among resin particles is better, so that shrinkage of the coating decreases during curing, and the application prospect is broad.

The invention discloses a method for connecting a pipeline into an existing box culvert. The method for connecting the pipeline into the existing box culvert comprises the steps that firstly, an inspection well is vertically arranged close to the outer side of the embedded box culvert; secondly, a horizontal maintenance passage is arranged between the box culvert and the inspection well, and the two ends of the maintenance passage are made to communicate with the box culvert and the inspection well correspondingly; and finally, a guide-in opening is formed in the side wall of the inspection well, and the pipeline stretches into the inspection well through the guide-in opening and finally extends into the box culvert through the maintenance passage. By the adoption of the method for connecting the pipeline into the existing box culvert, an old pipeline can be connected into the box culvert, and thus management is facilitated; meanwhile, a gap does not exist between an embedded sealing ring and the junction end face of the box culvert, so that water seepage is avoided; and when the joint of two box culvert deforms, a good waterproof function can still be achieved through the embedded sealing ring and a compression ring, so that water seepage at the junction of the box culverts is completely avoided, and the safety of the junction and normal operation are ensured during connecting construction of the box culverts.

The invention discloses a two-dimensional code printing device for gaskets in bottle caps. The two-dimensional code printing device comprises a feeding mechanism, a material arranging mechanism, a linkage mechanism, a first conveying mechanism, a second conveying mechanism, a blowback mechanism, a two-dimensional code printing and detecting mechanism, a defective product eliminating mechanism andan encoder; the gaskets are conveyed to the second conveying mechanism by the feeding mechanism, the material arranging mechanism and the first conveying mechanism in sequence; the blowback mechanismblows back the gaskets with unsatisfactory distance to the material arranging mechanism; and the two-dimensional code printing and detecting mechanism prints a two-dimensional code on the surface of each gasket, detects the printed gaskets, and eliminates unprinted products and defective products in cooperation with the defective product eliminating mechanism. According to the two-dimensional codeprinting device for the gaskets in the bottle caps, automatic and assembly line type production can be realized, the two-dimensional code stored with product information can be printed on the surfaceof each gasket, the effects of information tracing, marketing popularization and the like can be achieved, the bottle cap built-in two-dimensional code formed thereby has better anti-counterfeiting effect, and the two-dimensional code printing device has the characteristics of high production efficiency, high rate of certified products, short production period, low cost and the like.

The invention discloses a warning protection device for pavement maintenance engineering. The warning protection device comprises a bottom plate (1), side edge supporting rods (2), sliding block rods (4), a hanging assembly, a fixing frame (5), a bottom rotating assembly, a warning panel assembly and a positioning assembly; the side edge supporting rods are installed on the bottom plate to form inverted-T-shaped supporting base structures, and the bottom plate is installed on the ground through the positioning assembly; sliding grooves (3) are formed in the side edge supporting rods, one end of each sliding block rod is connected with the fixing frame and the sliding grooves, and the fixing frame is arranged between the pair of inverted-T-shaped supporting base structures through the pair of sliding block rods to form a protection device body; the hanging assembly is embedded in the sliding grooves, and the sliding block rods are connected with the hanging assembly and bounce along the sliding grooves; and the bottom of the fixing frame is rotationally connected with the side edge supporting rods through the bottom rotating assembly, and the warning panel assembly is installed in the fixing frame. According to the warning protection device, rotation and rapid resetting of the fixing frame can be achieved, the situation that external force loads are transmitted to the inverted-T-shaped supporting base structures, and consequently the stability of the protection device body is influenced is avoided, and the effective protection effect is guaranteed.

The invention relates to an AMT switch for a 24V heavy truck. The switch comprises a switch shell, a knob and an integrated circuit board. The knob is rotatably arranged on the switch shell, a magnetrotating along with the knob is fixedly arranged on the knob, the integrated circuit board is fixedly arranged on the switch shell, and a plurality of Hall sensors are arranged on the integrated circuit board along the rotating track of the magnet. By adopting the scheme, the AMT switch for the 24V heavy truck generates different electric signals on the integrated circuit board through induction of different Hall sensors and magnets, and realizes accurate induction and no contact.

A high-power thermally superconducting plate-fin combined radiator is composed of several spaced thermally superconducting plates with intercommunicating heat transfer channels filled with heat transfer working medium. A plurality of bottom substrate spacers are positioned between adjacent thermal superconducting plates and attached to the surface of the thermal superconducting plate; At least oneside of that space strip of the bottom substrate is provided with a groove on the surface contacting with the thermal superconducting plate; The surface of the thermally superconducting plate contacting with the partition strip of the bottom substrate is provided with a connecting through hole for communicating the heat transfer channel with the channel. The heat dissipation fin is located on atleast one surface of the thermal superconducting plate and above the bottom substrate spacer. The grooves on the two sides of the base plate spacer strip in the high-power thermally superconducting plate-fin combined radiator of the invention can be used as buffer and storage areas of the heat transfer working substance, balance the distribution of the heat transfer working substance, play the role of communication or isolation between the thermally superconducting plates, and also play the role of increasing the heating area of the heat transfer working substance.

The invention discloses a quick connecting structure of a pipefitting. The quick connecting structure comprises an upper pipe and a lower pipe. A protruding stud is also arranged in a part, for connection, of the upper pipe. The protruding stud comprises a slot sleeve, a clamping ring and a connecting sleeve. One end of the connecting sleeve is connected to the lower pipe while the other end of the connecting sleeve is connected to the slot sleeve, a slot and a notch groove are formed in the slot sleeve, the slot sleeve is in fit connection to the protruding stud of the upper pipe through thenotch groove, the clamping ring is arranged outside the slot sleeve in a sleeving manner, a limiting block is also arranged on the clamping ring, the slot sleeve is matched with and fixed to the clamping ring through the slot, and the clamping ring is limited in the notch groove by the protruding stud on the upper pipe through the limiting block. The quick connecting structure is suitable for a condition that the pipefitting cannot rotate to a great extent, is small in size, suitable for a condition that the assembling space between the pipefittings is small and is simple and convenient to operate.

A super-long prestressed reinforcement traction locker comprises a restraint device and a nut. The restraint device is composed of a conical part and a tail part integrally. The conical part is of a truncated cone structure, a reinforcement penetrating hole is formed in the axial center of a conical tip of the front portion of the conical part, a tendon arrangement hole is formed in the axial center of the rear portion of the conical part and communicated with the reinforcement penetrating hole, and the diameter of the tendon arrangement hole is larger than that of the reinforcement penetrating hole. The tail part is composed of a plurality of arc pieces, one end of each arc piece is connected to the edge of the tendon arrangement hole formed in the rear end face of the conical part, and the arc pieces define a plurality of rounds with gaps. Moreover, threads are formed on the peripheral surface of each arc piece. The nut is in threaded connection with the peripheral surface of the tail part. The super-long prestressed reinforcement traction locker has the beneficial effects that the inner diameter of the outer end of the tail part can be decreased through rotation of the nut, so that great restraint force is exerted on embedded reinforcements and prestressed tendons, and a connection effect is achieved; the conical part is of the truncated cone structure, resistance between the super-long prestressed reinforcement traction locker and a corrugated pipe can be reduced, and the prestressed tendons can be pulled conveniently; after traction is completed, cutting is not needed, and only the nut needs to be unfastened.

The invention relates to the technical field of building waste resource utilization, in particular to a brick regenerated by using construction waste. The brick comprises a brick body; the brick regenerated by using the construction waste further comprises a pressing block and a first clamping block; the brick body, the pressing block and the first clamping block are all made of the following raw materials in parts by weight: 56-58% of waste brick powder, 3-5% of fly ash, 11-13% of quick lime, 17-19% of aggregate, 5.5-6% of an additive and 14-20% of water; an L-shaped groove is formed in the brick body; and one end of the L-shaped groove is communicated with the upper end face of the brick body, and the other end is communicated with one outer side wall of the brick body. The first clamping block is pushed by the pressing block to be clamped in a first rectangular groove of adjacent brick bodies, then the first clamping block and the other end of a second clamping block slide along the groove wall of a through groove and then move into a second rectangular groove of the adjacent brick bodies to be matched, and therefore the brick bodies on the road surface form a whole under the action of the first clamping block and the second clamping block, so that the flatness of the regenerated brick on the pavement is improved, and the condition that a certain brick body is loosened to cause ankle sprain of pedestrians is prevented.

The invention discloses a connection structure of an over-long roof of a greenhouse. The connection structure comprises glass, roof lathes, a connecting piece, lower crosspieces and upper crosspieces, wherein the glass is provided with the roof strips at positions close to the edge; the connecting piece, the upper crosspieces and the lower crosspieces form an integrated structure; one side of the connecting piece is provided with the lower crosspieces for accommodating the glass edge, while the other side is provided with the upper crosspieces for accommodating the glass edge; the upper and lower crosspieces are arranged in parallel; the upper crosspieces are F-shaped and comprise a support bar, an upper crosspiece I and an upper crosspiece II, and the glass is arranged between the upper crosspiece I and the upper crosspiece II; and the lower crosspieces comprise a lower crosspiece I and a lower crosspiece II between which the glass is arranged. A stepped installation method introduced by the invention plays a part in connection through the connecting pieces, the lower crosspieces and the upper crosspieces, so large roof of the glass greenhouse can be designed and installed, wherein the large roof cannot accumulate water and has a water discharge function; and simultaneously, the method plays a part in enhancing the effect of supporting the large roof of the glass greenhouse.

The invention provides a diamond compact. The diamond compact is mainly composed of polycrystalline diamond particles, wear-resistant metal compound coatings and metal adhesives, wherein the wear-resistant metal compound coatings are formed on the surfaces of the polycrystalline diamond particles, and the metal adhesives are filled between the adjacent wear-resistant metal compound coatings. The invention further provides a preparation method of the diamond compact. The preparation method comprises the following steps of pretreating the diamond particles, forming the wear-resistant metal compound coatings, cleaning a matrix and pressing and sintering the compact. Specifically, the wear-resistant metal compound coatings with good wear resistance are deposited on the surfaces of the diamondparticles firstly to form composite diamond particles, and after the composite diamond particles are uniformly mixed with the metal adhesives, high-temperature and high-pressure sintering treatment isconducted on the surface of the clean hard alloy matrix to prepare the polycrystalline diamond compact. Therefore, the diamond compact has good wear resistance and long service life.

The invention relates to bait added with vegetable fiber and a preparation method thereof. The bait added with vegetable fiber comprises the raw materials of traditional bait and vegetable fiber. The traditional bait consists of raw materials and additives, wherein the raw materials comprise seeds, bran, dregs and animal proteins; and the additives comprise oxidants, mildew preventives, adhesives, coloring agents, flavoring agents and food attractants. The plant fiber is a mixture containing one or two of wood fiber and grass fiber. The wood fiber and the grass fiber can be uniformly distributed in the fishing bait, can achieve the effects of connection, cracking resistance, strength enhancing and bait atomizing improvement, and does not cause environmental pollution; and the bait is ideal for fishermen.

The invention discloses a two-dimensional code printing device for gaskets in bottle caps, which includes a feeding mechanism, a material sorting mechanism, a linkage mechanism, a first and a second conveying mechanism, a blowback mechanism, a two-dimensional code printing and detection mechanism, Defective product rejecting mechanism and encoder; gaskets are sequentially transported to the second conveying mechanism by the feeding mechanism, material sorting mechanism and the first conveying mechanism, and the blowback mechanism blows back the gaskets whose spacing does not meet the requirements to the material sorting mechanism. The two-dimensional code printing and testing mechanism prints the two-dimensional code on the surface of the gasket, and detects the printed gasket, and cooperates with the defective product rejection mechanism to remove unprinted products and defective products. The invention can realize automatic and assembly line production, can print the two-dimensional code storing product information on the surface of the gasket, and can achieve information traceability, marketing promotion and other effects, and the bottle cap thus formed has a built-in two-dimensional code It has better anti-counterfeiting effect, and has the characteristics of high production efficiency, high authenticity rate, short production cycle and low cost.

The invention relates to a vertical welding device for galvanized sheets, which aims to solve the problem of inconvenient operation in the welding of existing galvanized sheets, including a support plate, No. The switch and observation hole, the galvanized plate placement hole is opened horizontally on the support plate, the front end and the rear end of the support plate are provided with a welding hole, and the No. On the top plate of the support plate, the observation hole and the galvanized plate placement hole are set through. A photoelectric switch is arranged above the center of the observation hole. The photoelectric switch is set on the No. 1 U-shaped plate, and the No. 1 U-shaped plate is connected to the On the top wall; in the present invention, by adding the combined structure of the support plate and the galvanized plate placement hole, the setting of the combined structure can be used to play a supporting role when the galvanized plate is welded, so that it can be installed , can accurately align the position of the two galvanized sheets, so as to achieve the effect of fast and efficient work.

The invention discloses a storable creative workbench for art design, and relates to the technical field of creative workbenches for art design. The problem that the whole structure is not easy to disassemble and assemble is solved. The workbench specifically comprises a connecting base, bottom plates are arranged on the outer walls of the two sides of the connecting base, storage grooves are formed in the outer walls of the two sides of the tops of the two bottom plates, the inner wall of one end of each storage groove is connected with a supporting rod through a rotating shaft, and the top ends of every two supporting rods are connected with a fixing base through a clamping mechanism; connecting rods are arranged on the outer walls of the tops of the connecting base, clamping bases are arranged on the outer walls of the tops of the connecting rods, fixing plates are connected to the outer walls of the tops of the clamping bases through two sets of fixing mechanisms, bearing grooves are formed in the outer walls of the opposite sides of the bottoms of the two fixing bases, and clamping base plates are clamped to the inner walls of the two bearing grooves correspondingly. A first table plate and a second table plate are arranged on the outer walls of the opposite sides of the two clamping base plates correspondingly. The problem that bolts are used for fixing and cannot be effectively disassembled is solved.

The invention discloses a connection structure of an over-long roof of a greenhouse. The connection structure comprises glass, roof lathes, a connecting piece, section 1 and section 2, wherein the glass is provided with the roof strips at positions close to the edge; the connecting piece, the section 2 and the section 1 form an integrated structure; one side of the connecting piece is provided with the section 1 for accommodating the glass edge, while the other side is provided with the section 2 for accommodating the glass edge; the section 2 and the section 1 are arranged in parallel; the section 2 are F-shaped and comprise a support bar, an upper crosspiece I and an upper crosspiece II, and the glass is arranged between the upper crosspiece I and the upper crosspiece II; and the section 1 comprise a lower crosspiece I and a lower crosspiece II between which the glass is arranged. A stepped installation method introduced by the invention plays a part in connection through the connecting pieces, the section 1 and the section 2, so large roof of the glass greenhouse can be designed and installed, wherein the large roof cannot accumulate water and has a water discharge function; and simultaneously, the method plays a part in enhancing the effect of supporting the large roof of the glass greenhouse.

The invention discloses a pipeline connection device for water conservancy projects and its use method. Although the existing technology can reduce the labor intensity of the staff and shorten the connection or disassembly process of the pipeline by the staff, it cannot solve the problem of scale spreading on the outer wall of the pipeline. , Impurities and welding rust, the outer wall of the pipeline cannot be scraped, adsorbed and wiped clean, and the safety of the installation workers and the characteristics of convenient installation cannot be guaranteed when installing the pipeline. Through the mechanical cooperation between the connecting mechanism and the driving mechanism, the present invention absorbs and cleans the scale, impurities and welding rust all over the outer wall of the pipeline, so as to ensure the safety of workers when installing the pipeline and to facilitate installation.

A method for constructing an LED filament lamp and the LED filament lamp. A lamp bulb housing (101) and a lamp holder (108) are disposed outside an LED light source core assembly, and the LED light source core assembly is connected to the lamp holder (108) by means of a wire, so as to form an LED filament lamp. The LED light source core assembly consists of an LED filament set (420), a built-in LED driving power supply module (410), and wiring terminals (44). Two ends of the LED filament set (420) are connected to fixed welding points of the built-in LED driving power supply module (410) by means of the wiring terminals (44) playing a supporting role; or, serial-connection points of the LED filament set (420) are also connected to the fixed welding points of the built-in LED driving power supply module (410) by means of the wiring terminals (44) playing the supporting role. The construction complexity of the LED filament lamp is reduced; When LED filament lamps of different typical forward voltage grade requirements are constructed by means of non-voltage-reduction rectifying power supply under different mains supply voltage grades, an LED filament can have higher universality and interchangeability.

The invention relates to a deep foundation pit super pressure suction combined vacuum dewatering system, and relates to the technical field of vacuum dewatering systems. The deep foundation pit super pressure suction combined vacuum dewatering system comprises a filter pipe, wherein a plurality of filter holes are formed in the filter pipe; a water pumping mechanism is arranged in the filter pipe; the water pumping mechanism comprises a water pumping pipe and a submersible pump; a connecting mechanism is arranged at one end of the filter pipe, and the other end of the filter pipe is coaxially connected with a sealing pipe; a sealing cover is connected to the sealing pipe through a flange; the water pumping pipe penetrates through the sealing cover; the connecting mechanism comprises a bottom frame, a plurality of connecting pieces and a mounting base; the bottom frame is connected to the end part of the filter pipe; the connecting pieces are arranged at equal intervals along the circumference of the bottom frame; the mounting base is used for being connected with the submersible pump; and the connecting pieces are used for being clamped with the mounting base. The deep foundation pit super pressure suction combined vacuum dewatering system has the effect of reducing the probability of breakage of the water pumping pipe caused by vibration of the submersible pump.

A super-long prestressed reinforcement traction locker comprises a restraint device and a nut. The restraint device is composed of a conical part and a tail part integrally. The conical part is of a truncated cone structure, a reinforcement penetrating hole is formed in the axial center of a conical tip of the front portion of the conical part, a tendon arrangement hole is formed in the axial center of the rear portion of the conical part and communicated with the reinforcement penetrating hole, and the diameter of the tendon arrangement hole is larger than that of the reinforcement penetrating hole. The tail part is composed of a plurality of arc pieces, one end of each arc piece is connected to the edge of the tendon arrangement hole formed in the rear end face of the conical part, and the arc pieces define a plurality of rounds with gaps. Moreover, threads are formed on the peripheral surface of each arc piece. The nut is in threaded connection with the peripheral surface of the tail part. The super-long prestressed reinforcement traction locker has the beneficial effects that the inner diameter of the outer end of the tail part can be decreased through rotation of the nut, so that great restraint force is exerted on embedded reinforcements and prestressed tendons, and a connection effect is achieved; the conical part is of the truncated cone structure, resistance between the super-long prestressed reinforcement traction locker and a corrugated pipe can be reduced, and the prestressed tendons can be pulled conveniently; after traction is completed, cutting is not needed, and only the nut needs to be unfastened.

The present invention belongs to the field of new polymer material, and discloses one kind of nanometer modified high performance acrylic acid size and its preparation process. The acrylic acid size is prepared with nanometer level titania powder, acrylic acid, acrylamide acrylonitrile and butyl acrylate as main synthesized material, oleic acid as modifier and ammonium sulfate as initiator. Owing to the nanometer material with reinforcing effect, wear resistance and high permeability, and the acrylic acid monomer with functional group similar to that in fabric fiber structure, the size has excellent permeating and coating performance and high adhesion, forms complete, antiwear, tough and elastic size film, and may be used in sizing fabric of cotton, Dacron, etc. including fabric warp with high density and high weaving difficulty.