88results about How to "To achieve the purpose of reinforcement" patented technology

The triple pipe double high pressure rotary jetting sprouting method for reinforcing construction includes jetting high pressure water flow coating compressed air via the upper nozzle and jetting high pressure cement slurry coating compressed air via the lower nozzle separately to twice cut the soil before the cement slurry and the stirred soil mix to form foundation reinforcing pile. The rotary jetting apparatus for the construction has both high pressure water nozzle and high pressure cement slurry nozzle for the first soil cutting and the second soil cutting separately. The present invention can form high pressure jet with great energy and powerful soil breaking effect, and can form large and deep reinforcing pile.

The invention relates to a 3D printing aromatic polyester material comprising the following components in parts by weight: 60-90 parts of aromatic polyester, 10-25 parts of polycarbonate, 2-10 parts of a thermoplastic elastomer, 1-5 parts of a compatibilizer, 0.1-5 parts of a sensitizing agent, and 0.1-1 part of an antioxidant. The aromatic polycarbonate and the aromatic polyester are utilized for co-mixing modification so as to improve the shock resistance, and after the co-mixed material is drawn into thin strips, the thin strips are subjected to a certain extent of crosslinking by irradiation with a certain dose of electron beams, so that a purpose of noumenon enhancement is achieved, at the same time, good fusion processability is maintained, and the aromatic polyester is allowed to have a wider application prospect in 3D printing materials.

The invention discloses a beam-removing rib-increasing strengthening construction technology of a highway bridge. A bearing beam of a strengthened bridge comprises a plurality of hollow beam plates. The technology comprises the following steps: chiseling and removing an original collision prevention guardrail and a bridge face laying layer; eliminating a transverse connection hinge seam between the two adjacent hollow beam plates; hanging and moving the hollow beam plates and supporting reasonably; embedding ribs and pouring the pad stone of a supporting seat anew; checking, determining, recycling the hollow beam plates, repairing defects and processing cracks; sticking the beam bottoms of edge beams and strengthening steel plates; anew installing the hollow beam plates transversely at intervals; constructing rib beams which are added newly; constructing a steel bar net of the bridge face laying layer and embedding the steel bar of the collision prevention guardrail in advance; pouringthe concrete of the bridge face laying layer; and constructing the collision prevention guardrail and installing bridge face expansion joints. The invention has reasonable design, smaller execution difficulty, simple construction steps and low construction cost, has small damage to the original hollow beam plates, can enhance the bearing capacity of an original structure of a hollow plate bridge,has very good strengthening effect and can effectively solve the strengthening problem of the hollow plate bridge.

The invention relates to a novel partial deep layer pressurizing type vacuum preloading soft soil foundation processing method. According to the technical scheme, the method comprises a vertical drainage system, a transverse drainage system, vacuum extraction equipment, a pressurizing system, pressurizing equipment and a sealing system; a vertical drainage board adopts a novel anti-clogging drainage board, the vertical drainage board is divided into two parts to be driven, one part is driven into a soil body, and the other part is exposed out of the surface of the soil body. The technology enables a deep soil body to obtain higher air pressure, enables a larger pressure difference to be formed among the deep soil body, an upper soil body and the vertical drainage board, and enables the free water in the deep soil body to fast flow to the upper soil body and the drainage boards. In addition, the flow direction of airflow from a jet head obliquely upwards points to the drainage boards, therefore the seepage of the pore water in the deep soil body to the drainage boards can be accelerated, and the deep soil body can obtain better reinforcement effect.

The invention discloses a trussed steel girder reinforced structure, which is to connect a steel truss (3) under a steel girder (1). The steel girder (3) consists of a web member (5), a lower chord member (6) and an upright post (7). Batten plates (4) are arranged on the web member (5) and the lower chord member (6). The web member (5) and the lower chord member (6) are made of equilateral double angle steel which is connected through the batten plates (4). The thickness of each batten plate (4) is 8 millimeters, and space length of the batten plates (4) is 500 millimeters. The upright post (7) is formed by connecting two equilateral double angle steels. In the invention, a steel truss is arranged on the bottom of the prior steel girder so as to change the stress system of the prior steel girder and substantially improve the inertia moment I value of the section of the steel girder, thereby achieving the aims of strengthening and reinforcement. Compared with the prior method that formed steel is simply welded on the bottom of the prior steel girder to increase the section of the steel girder, under the condition of using steel materials with the same quantity, the trussed steel girder reinforced structure has more prominent reinforcing effect and economy.

The invention provides a schoolhouse in-vitro reinforcing and strengthening method of a prefabricated perforated plate brick mixed structure. The method includes the steps that latticed structure limb column construction and independent brick column reinforcement are carried out; vertical reinforcing band rebar binding and horizontal reinforcing band rebar binding are carried out; a steel bracket is installed, and structural cracking is treated; a cantilever beam and a proscenium beam are subjected to rebar embedding; a simply supported cross beam is subjected to carbon fiber cloth reinforcing construction, and wall cracks are repaired; door and window holes are subjected to rebar binding reinforcing; reinforcing treatment of double-faced reinforcing mesh cement mortar clamping plates is carried out; leakage treatment is carried out; a cracked prefabricated floor surface layer is repaired; waterproof treatment is carried out. The technology is advanced, the process is simple, less building garbage is generated, the construction period is short, economic benefits and social benefits are very remarkable, and popularization and application prospects are wide.

The present invention relates to a strengthening external layer suitable for column and its method for strengthening column. It is characterized by that said strengthening external layer is formed from concrete whose grade strength is greater than or equal to C40 and high-strength steel wire mesh or mesh reinforcement. The high-strength steel wire mesh or mesh reinforcement can be fixed on the surface of column to be strengthened, and the high-strength steel wire mesh or mesh reinforcemnt is covered with the described concrete so as to form the high-strength concrete thin layer whose whickness is less than or equal to 40 mm. Said invention also provides its construction method and steps for strengthening column.

The invention relates to a tensioning and anchoring device and a reinforcing method, in particular to a tensioning and anchoring device for reinforcing a reinforced concrete bridge through prestress FRP(fiber reinforced plastic) cloth and a reinforcing method. The device aims to solve the problems that due to an existing method of reinforcing the bridge by pasting the FRP cloth, the stress level of the FRP cloth is reduced, the advantage of high strength can not be given into full play effectively, and the reinforcing effect of the bridge is poor. The device comprises the FRP cloth, a prestress tensioning pedestal, two tensioning assemblies, two triangular supports, two anchoring assemblies and two steel rollers. The two triangular supports are arranged on the upper surface of the prestress tensioning pedestal side by side. One steel roller is installed at the upper end of each triangular support. One tensioning assembly is arranged at the lower end of each triangular support. The two ends of the FRP cloth are connected with the two anchoring assemblies respectively. Each anchoring assembly is wound around one steel roller and connected with one corresponding tensioning assembly. The device belongs to the field of bridge building.

The invention discloses a shape memory alloy self-restoration rubber damper which comprises an upper main plate and a lower main plate paired with the upper main plate. The upper main plate and the lower main plate are symmetrically distributed up and down. The upper main plate is connected with a pair of upper auxiliary plates, and the lower main plate is connected with a pair of lower auxiliary plates. The upper auxiliary plates and the lower auxiliary plates are connected in an inserted mode. Two rubber plates are arranged between the upper auxiliary plates and the lower auxiliary plates. The inner sides of the upper auxiliary plates are provided with a hyperelastic shape memory alloy wire. A pair of drums is separately connected with the left side and the right side of the lower portion of the upper main plate, and a pair of pistons sleeved with the pair of drums is separately connected with the left side and the right side of the upper portion of the lower main plate and reciprocates in the drums. By adoption of the shape memory alloy self-restoration rubber damper, the problems that a building or a structure inclines and collapses due to the fact that dynamic response is caused by earthquake action or a wind load are solved; the shape memory alloy self-restoration rubber damper is simple in structure, convenient to construct, economical, practical and capable of effectively reduce structural dynamic response; self restoration can be achieved, the purpose of reinforcement is achieved, and the resistance capacity of civil engineering under earthquake action and dynamic loads such as the strong wind load is improved; and the shape memory alloy self-restoration rubber damper is high in energy dissipation capacity.

Provided is a method for reinforcing a corroded position of a pipeline by using carbon fibers. The method comprises the following steps that firstly, rust removal is conducted on the outer surface of the corroded position of the pipeline, and the rust removal range exceeds the outer side of the corroded position by at least 100mm; secondly, roughness processing is conducted on the surface undergoing rust removal so that the surface of the biological pipeline to be repaired can keep definite roughness; thirdly, a position to be repaired is cleaned and kept clean and free of pollutant, the corroded position is coated with a layer of repair agents, curing time ranges from 30 minutes to 120 minutes, curing temperature ranges from 25 DEG C to 80 DEG C, and the corroded position is filled up; fourthly, the outside of the repair agents is coated with a layer of epoxy primer, and a carbon fiber composite reinforcing layer is arranged outside the epoxy primer. The method has the advantages that the service life of the pipeline is prolonged, the reinforcing effect is good and processes are simple.

The invention relates to an inverse ratio or small ratio NMOS (N-channel Metal Oxide Semiconductor) tube layout structure resistant to a total dose irradiation effect. The structure comprises a semiconductor substrate and an active region, wherein polycrystalline grids are deposited in the active region of the semiconductor substrate; a source end injection protection ring and a leakage end injection projection ring are arranged at two ends in the active region corresponding to the deposited polycrystalline grids respectively; a source end and a leakage end are formed in the source end injection protection ring and the leakage end injection protection ring respectively by performing ion injection; both the source end and the leakage end are surrounded by the polycrystalline grids; and the source end and the leakage end are isolated through the polycrystalline grids. Due to the adoption of the structure, the problem of electric leakage and isolation failure caused after field oxygen induction inversion under the radiation condition is completely solved; meanwhile, an edge parasitic transistor which is very sensitive to the total dose effect does not exist at the boundary between the polycrystalline grids and a field oxygen region, so that the aim of reinforcing the total dose is fulfilled; and an inverse ratio or small ratio reinforced NMOS tube which is difficult to realize with the conventional annular grids can be realized, the structure is simple and is compatible with the commercial process, and has a small occupied area, and layout wiring is more convenient and flexible.

The invention discloses a tunnel crack repair method, and relates to the technical field of architectural engineering construction. The tunnel crack repair method comprises the following steps: (A) drilling: the drilling is performed to find out a leakage channel; the drilling pitch is 0.2-0.5 m; the aperture is 20-30 cm; and the hole depth is 10-20 cm; (B) crack surface closing: ash in holes and gaps in the step (A) is removed; (C) grouting: the holes are grouted by using a grouting plug; and (D) hole sealing: after the grouting is finished, the grouting plug is taken out, and resin mortar is used for sealing the holes. Compared with the prior art, the tunnel crack repair method solves the problems of water leakage and water seepage after tunnel cracking.

A chemical stabilization method for arenoso rock features that after the solution of magnesium fluorosilicate is sprayed, the organosilicone consolidating agent WD-WO2 is sprayed.

The invention discloses a narrow space shield construction machine starting method. The method comprises the following steps that 1, a layered replacement mode from bottom to top is adopted for the replacement of a starting hole door, and the pre-existing even wall is replaced with plain soil concrete; a steel ring of the starting hole door is lengthened, so that a shield construction starting end head is strengthened, the predetermined effect is obtained, and the smooth starting of a shield construction machine is guaranteed; 2, the shield construction machine is subjected to examination, maintenance and debugging; 3, shield construction starting is conducted through a counterforce frame and a negative ring pipe slice. Additional reinforcement is not needed for the stratum outside a starting well and an end head stratum, the floor space of the starting well can be reduced, so that the influence on the surrounding traffic can be lowered to the minimum, the construction can be achieved without the need for surrounding pipelines to be changed, the investment and the resident disturbance are reduced, the method accords with the truth, and the method is economical and reasonable. The method is applied to the construction in the situation that the well of starting end head of the shield construction machine cannot be strengthened.

The invention relates to a connection method for reinforcing joints between pre-fabricated hollow slabs and a horizontal beam by embedding steel reinforcements. The connection method comprises the steps of: symmetrically forming grooves with length of L on the front and rear sides of two opposite pre-fabricated hollow slabs on two sides of the horizontal beam, respectively arranging steel reinforcements horizontally connecting the two pre-fabricated hollow slabs in the symmetrically formed grooves, then arranging steel reinforcements which are aslant crossed in an X shape at the middle between the two pre-fabricated hollow slabs, then pouring fine gravel concrete on the horizontal beam at the middle between the two pre-fabricated hollow slabs, and finally applying a layer of fine gravel concrete with thickness of 20 mm at the joints between the pre-fabricated hollow slabs and the horizontal beam. According to the invention, by reinforcing the connecting joints, the integrality of the joints between the pre-fabricated hollow slabs and the horizontal beam is increased, the synergic deformability of each side force resisting component is increased and the interlayer displacement of the structure is reduced, thus the local or integral collapsing of a masonry structure is avoided as much as possible; and the structure is simple, convenient and effective, and can enhance the tensile and shear resisting bearing capacity of the joints so as to achieve the reinforcing purpose.

The invention discloses a method for preparing vinyl-functionalized white carbon black for reinforcing methyl vinyl silicone rubber. The method is characterized by comprising the steps of: uniformly mixing tetraethoxysilane, ammonia water as a catalyst, absolute ethyl alcohol as a solvent and undecylenyl alcohol as a modifier according to the volume ratio of 6:3:1:1, reacting for 1-2 hours at 50-80 DEG C, then filtering to obtain solid matters, washing the solid matters for two to five times with the absolute ethyl alcohol as the solvent, and drying to obtain the vinyl-functionalized white carbon black. The vinyl-functionalized white carbon black prepared by using the method has a CH2=CH-functional group participating in a crosslinking reaction with methyl vinyl silicone rubber, and is added in the methyl vinyl silicone rubber as stuffing; vinyl on the surface of the white carbon black has a chemical bonding reaction with a molecule chain of the silicone rubber, so that a reinforcement effect of the white carbon black on the silicone rubber can be improved; and the method is applicable to the silicone rubber reinforcement industry.

The invention discloses a microorganism curing treatment device used for a sand-layer foundation. The microorganism curing treatment device comprises a conveying device and a hollow pipe pile. The output end of the conveying device communicates with the upper end of the hollow pipe pile. Bacteria and a nutrient solution are output into the hollow pipe pile through the conveying device. The hollowpipe pile is inserted into a soil body. Liquid outlets are evenly formed in the wall of the hollow pipe pile. The bacteria and the nutrient solution flow into the soil body through the liquid outlets.The invention further provides a construction process of the device. The construction process comprises the steps that (1) the hollow pipe pile is prefabricated and then driven into the soil body; (2) the bacteria are cultivated to the required number, and the nutrient solution is prepared; (3) bacterium liquid enters the soil body through the liquid outlets; (4) the nutrient solution is injectedinto the hollow pipe pile through the conveying device; and (5) the step (3) and the step (4) are repeated until the soil body meets the requirements. The structure, construction steps and operationare simple, the project construction period can be greatly shortened, the soil body is reinforced through nontoxic materials, and the microorganism curing treatment device and the construction processhave the beneficial effects of being slight in environment pollution, low in carbon, environmentally friendly, low in construction cost and high in economic benefits.

The invention discloses a treatment process method for reinforcing wet wickers for weaving, and belongs to the technical field of wickers. The wickers in the wet state, namely fresh wickers, are directly utilized, peeling, drying and liquid soaking are not needed in the reinforcing process, reinforcing liquid is directly injected in a reinforcing liquid injection and replacement mode, by means of the short-time biological characteristics of the cut wickers, the reinforcing liquid enters the wickers, the reinforcing effect is achieved through dry ice freezing and shaping storage, and in the process, molds can be adopted for shaping, and structures of different shapes are achieved. In the prior art, the shape of the wickers is changed by adopting fire-forced bending and box making, the method disclosed by the invention can also realize lower-requirement and more convenient wicker modeling, the weaving wickers have the effects of improving mechanical strength, increasing weight and preventing water after being subjected to enhanced liquid-liquid treatment, the wicker is not easy to deform, the treatment process is simple and convenient, and the obtained wet wickers has the advantages of high mechanical strength, high heat resistance, high corrosion resistance, high hardness and high specific gravity.

The invention belongs to the technical field of structural damage detection and reinforcement, and particularly relates to a carbon fiber structure reinforcement method. Before pasting a carbon fibercloth, the carbon fiber cloth is pre-soaked with an epoxy resin solution, the carbon fiber cloth after immersion is pasted on the surface of a concrete crack with an epoxy resin adhesive, and the carbon fiber cloth is pasted in the direction of the tension or in the direction perpendicular to the cracks. The carbon fiber structure reinforcement method solves the problem that in the prior art, thestrength, rigidity, stability and durability of a structure and a member cannot be well improved in the prior art, and has the beneficial technical effects of improving the strength, rigidity, crack resistance and elongation of the structure and being good in anti-seismic effect and better in reinforcement effect.

The invention discloses a firmly fixed transformer for a general-purpose aeroplane. The firmly fixed transformer comprises a transformer shell and a top cover, wherein the top cover is arranged at theupper end of the transformer shell, by improving the internal structure of the top cover which is in sealing connection with the transformer shell and adding an anti-shaking reinforcing device in thetop cover, the novel anti-shaking reinforcing device is fixedly installed on the transformer shell at the top cover, then the bottom portion of the anti-shaking reinforcing device can be tightly attached to the outer wall of the upper end of the transformer main body, the contact and bonding strength between the anti-shaking reinforcing device and the transformer main body can be changed by adjusting the anti-shaking reinforcing device, therefore, when the transformer main body is loosened after being arranged in the transformer shell, the contact fixing strength of the transformer main bodycan be increased by adjusting the anti-shaking reinforcing device so as to enable the transformer main body which is loosened and arranged in the transformer shell to be directly reinforced without disassembling the transformer shell.

The invention discloses cutting equipment and a cutting process of a bearing ring, and relates to the technical field of bearing ring machining equipment. The cutting equipment specifically comprisesa base, a lifting mechanism, a linear cutting mechanism, a clamping mechanism, a supporting mechanism and a bearing ring reinforcing mechanism, wherein an air vertical plate is welded to an upper portion of an end face of the base, and the lifting mechanism is slidably mounted on a rear side vertical plate; the linear cutting mechanism is arranged on a front side vertical plate, a sliding seat isinstalled above a surface of the base in a sliding mode, the clamping mechanism is vertically arranged above the sliding seat, the supporting mechanism is horizontally welded to a side wall of the sliding seat, and the bearing ring reinforcing mechanism is installed above the sliding seat. According to the cutting equipment and cutting process of the bearing ring disclosed by the invention, through the arrangement of the lifting mechanism, a stable supporting effect is provided for the bearing ring while the bearing ring is subjected to cutting machining, so that the bearing ring is not proneto shaking or vibrating, and the machining efficiency is improved.

The invention discloses a magnetic pole protection structure, a rotor, a motor and a rotor installation method. The magnetic pole protection structure is applied to multiple columns of magnetic poles,the magnetic poles are arranged in the circumferential direction of a rotor magnet yoke at intervals, and an unshielded axial channel is formed between every two adjacent columns of magnetic poles. The magnetic pole protection structure comprises a plurality of magnetic pole protection belts arranged in the circumferential direction of the rotor magnet yoke at intervals; each magnetic pole protection belt is buckled on a column of magnetic poles, and two ends of each magnetic pole protection belt are respectively fixed on the rotor magnet yoke by adopting fixing pieces, so each magnetic poleprotection belt is abutted against the magnetic poles. The purposes of enlarging the gaps of the magnetic poles in the circumferential direction of the rotor, increasing the ventilation quantity of anaxial air path of the rotor, reducing the temperature rise of the motor, improving the efficiency and generating capacity of the motor, further reducing the effective material consumption of the motor and bringing the benefits of cost reduction and benefit increase to the motor are achieved.

The invention discloses a hydraulic reclamation soft area foundation treatment method. The method comprises the following steps that S1, hydraulic reclamation is carried out on soft soil to form a first hydraulic reclamation soil layer; S2, vacuum preloading treatment is carried out; S3, a plurality of first steel pipes are arranged in the first hydraulic reclamation soil layer; S4, first geobagsare filled with gravels; S5, a horizontal plate is arranged, and a plurality of first gravel piles are formed through grouting; S6, a plurality of second steel pipes are arranged at intervals, and hydraulic reclamation is carried out on soft soil to form a second hydraulic reclamation soil layer; S7, any second steel pipe is filled with gravels, and vacuum preloading treatment is conducted; S8, third steel pipes sleeve the second steel pipes, and and hydraulic reclamation is carried out on soft soil to form a third hydraulic reclamation soil layer; S9, the steps S7-S8 are repeated to form an Nth hydraulic reclamation soil layer to reach a set height; S10, vacuum preloading treatment is carried out; and S11, high-pressure grouting is conducted to form a plurality of second gravel piles. Themethod has the beneficial effects of being good in reinforcing effect, high in foundation bearing capacity and uniform in bearing capacity distribution.

The invention discloses a system reinforcing method for a steel plate combined continuous beam. The system reinforcing method comprises the steps that a temporary support is erected near a bending moment zero point of the combined beam; secondly, the composite beam is jacked for the first time, a support system on a cover beam of the middle pier is removed, and damaged concrete of a bridge deck ina hogging moment area of the top of the middle pier is chiseled away; then, secondary jacking is conducted, a prefabricated channel beam is hoisted to be installed on the middle pier cover beam, andthe upper flange of the prefabricated channel beam is connected with the lower flange of an H-shaped beam in a welded mode; meanwhile, longitudinal ribs and vertical ribs are implanted into the middlepier cover beam, and studs are welded to the inner side of a steel web of the H-shaped beam; finally, concrete is poured, the temporary support is dismantled, and construction is completed. On one hand, the bearing capacity and torsional distortion resistance of the steel plate combined continuous beam can be greatly improved, on the other hand, the problem of bridge deck slab cracking in the hogging moment area of the steel plate combined continuous beam can be effectively solved, and the purpose of reinforcing an existing steel plate combined continuous beam system is achieved.

A method for reinforcing web members of a reinforced concrete truss includes: cleaning damaged concrete of the web members of the reinforced concrete truss, removing rust on rusted reinforcing bars and applying anti-rust agent; sleeving a PVC (polyvinyl chloride) pipe with an elongated slit on each of the web members of the reinforced concrete truss and plugging the slit by a wooden plate; pouring resin concrete into the PVC pipes, hooping the PVC pipes with carbon fiber fabrics or steel plate hoops so that the resin concrete can be spilled and the purpose that the resin concrete can be extruded to be compact automatically is achieved; and removing the wooden plates at the slits after the resin concrete is solidified. The method for reinforcing the web members of the reinforced concrete truss by the resin concrete filled in the PVC pipes is simple, convenient, efficient and capable of repairing and reinforcing rusted reinforcing bars and seriously-damaged concrete of the web members of the reinforced concrete truss.

The invention discloses a deep replacement dynamic compaction gravel pile soil foundation reinforcing method. High-pressure equipment is adopted for high-pressure jet so as to impact and damage a soilbody, fine soil materials come up to the water surface along with slurry, and are stirred and mixed with the slurry and realigned regularly according to the proportion, a consolidation body can be formed in soil, the consolidation body and the soil between piles jointly constitute a composite foundation, thus the bearing capacity of the foundation is improved, deformation of the foundation is reduced, the purpose of reinforcing the foundation is achieved, and the deep replacement dynamic compaction gravel pile soil foundation reinforcing method has the advantages of easy construction and highsoil foundation strength.

The invention discloses a construction method and structure of holing, reinforcing and leaking preventing of an old pool side wall. The structure comprises L-shaped reinforcing steel bars, a steel waterproof casing pipe and a micro expansion secondary grouting material layer, the steel waterproof casing pipe and the L-shaped reinforcing steel bars are welded and fixed, the L-shaped reinforcing steel bars are welded and fixed to reinforcing steel bars in the pool wall, the position between the steel waterproof casing pipe and concrete of a hole of the pool wall is filled with the micro expansion secondary grouting material layer, a V ring groove is formed in the inner wall of the concrete of the hole of the pool wall, and the micro expansion secondary grouting material layer is embedded inthe V ring groove. Compared with the traditional construction method, the method has the advantages of being small in holing, convenient to reinforce, small in work amount, capable of reducing the work amount by more than 80%, capable of enabling the leakage prevention and seepage prevention rate to be increased by 90%, and capable of achieving the aims of preventing leakage and seepage and prolonging the service life.

The invention discloses a welding-free LED filament bulb, structurally comprising a lampshade, a core post, and a mounting disc. The lampshade is connected with the mounting disc; the core post is arranged inside the lampshade; the lampshade is in bulb form; the core post is fixedly connected with the mounting disc; the mounting disc is in spiral form. The welding-free LED filament bulb has the advantages that upon insertion of a filament, two clamp plates are forced manually and are opened oppositely, a spring gains elastic potential energy when contracted upon force, the two clamp plates move to each other and clamp the filament after external force is removed, and the filament can be tightly connected with a conductive block; under traction of a wire fitting ring and action of compression, the filament is wound the lateral side of a screw shaft wheel along with its rotation and is press-fitted by the aid of a presser plate, loosening of the filament is avoided, and reinforcing is achieved.