44results about How to "Easy structure processing" patented technology

The invention discloses a structure of an electronic product casing and a processing technology thereof. The structure and processing technology of the electronic product casing fully combine a composite composite material with the advantages of high strength, thin thickness, light weight, corrosion resistance, good radiation resistance and the like. The material panel and the plastic parts with the characteristics of light texture and easy structural processing are realized by injection molding on the surface of the composite material panel through the intermediate film medium layer, and the purpose of fixing the composite material panel and the plastic part is achieved. The electronic product casing with the composite material panel as the outer surface of the casing and the plastic part as the structural member makes the electronic product casing not only retain the good radiation protection effect of the composite material panel, high strength, thin thickness, light weight, corrosion resistance, resistance It has the advantages of high temperature and beautiful appearance, and also forms plastic parts with complex structure through the film dielectric layer and injection molding process, which overcomes the defect that the composite material panel cannot form complex structural parts.

The invention discloses a thermal expansion valve with a unidirectional control function. The thermal expansion valve comprises a valve body having an inlet passage and an outlet passage, a temperature sensing part disposed at one end of the valve body, and a first spool part disposed in an inner cavity of the valve body. The first spool part comprises a valve stem and a first spool; the valve stem is abutted to the temperature sensing part; the first spool coordinates with a first valve port in the inner cavity to control the quantity of medium fluid flowing from the inlet passage to the outlet passage. The valve body further comprises an accommodating portion extending from the inlet passage to the inside of the valve body. The accommodating portion is provided with a second valve port and an internal second spool part. A limit bushing is arranged between the valve stem and the valve body in a sleeving manner. The limit bushing inwardly extends into the accommodating portion to limit the opening position of the second spool part. When the medium flows from the inlet passage to the outlet passage, the second valve port is closed; when the medium flows from the outlet passage to the inlet passage, the second valve port is open. Compared with the prior art, the thermal expansion valve has the advantages that operational reliability is effectively improved on the premise of improving manufacturability.

The invention discloses a stamping retainer provided with a lubricating oil duct and a machining method. The sliding friction between an existing rolling bearing retainer and a rolling body is too large. An annular groove is formed in the side wall of each pocket of the stamping retainer in the circumferential direction of the pocket, and rounded corners are chamfered between the two side walls ofeach annular groove and the side wall of the corresponding pocket. Microstructures are arranged at the bottoms of the annular grooves. The machining method of the stamping retainer comprises the following steps of material checking; primary machining of the retainer to form a steel ring and finishing treatment; formation of the microstructures; stamping formation of a retainer body on one side ofthe retainer; surface treatment; and riveting. According to the stamping retainer provided with the lubricating oil duct and the machining method, surface-to-surface contact between a traditional retainer and a rolling body is converted into surface-to-line contact, so that the frictional resistance is reduced; through the design of the rounded corners of an n-shaped structure, the situation thatsecondary surface cracks are formed too early due to cutting of the contact surface is avoided, and the normal service life of a bearing is ensured; and meanwhile, the structures with bionic surfacetopography are arranged on oil film contact areas of a rolling body and the retainer, so that the dynamic pressure oil film properties are improved, and the lubricating effect is improved.

The invention discloses a thermostatic expansion valve with the one-way control function. The thermostatic expansion valve with the one-way control function is characterized in that a valve body (1) further comprises a containing portion (16) extending to the inner portion of the valve body (1) from an inlet channel (11), a second valve port (15) is formed in the containing portion (16), a second valve element component (5) is arranged in the containing portion (16), an inner cavity (13) is communicated with an outlet channel (12) through a first communicating channel (31), the containing portion (16) is communicated with the outlet channel (12) through a second communicating channel (32), the outlet channel (12) and the first communicating channel (31) are arranged in a parallel communicated mode, and the outlet channel (12) and the second communicating channel (32) are arranged in a parallel communicating mode. Compared with the prior art, the thermostatic expansion valve with the one-way control function has the advantages that the containing portion of the second valve element component is an extending portion of an inlet channel on the valve body, a hole does not need to be formed additionally, the structure is convenient to machine, the second valve element component is simple and reliable in installation, and the hidden danger of outward leakage is reduced; meanwhile, the first communicating channel and the second communicating channel are arranged parallel to the outlet channel in a communicated mode, so that the resistance of fluid is reduced and the environment of a flow path system is improved.

The invention relates to a large-air-volume volute fan. The fan comprises a volute, a wind wheel and a motor, an air duct is formed in the volute, a coaming of the volute is in an open ring shape, anair outlet is formed in an opening of the coaming, the wind wheel is arranged in the air duct and is in transmission connection with the motor, and a first lead-out plate and a second lead-out plate are arranged on the two sides of the air outlet correspondingly; the second lead-out plate is connected with the other end of the opening of the coaming through an arc transition surface, the horizontal distance between a tangent point between the arc transition surface and a vertical line and the first lead-out plate is 125-155mm, and an included angle between the second lead-out plate and a vertical line is 20-70 degrees; a first arc plate, a second arc plate and a third arc plate are sequentially arranged between the corresponding arc transition surface of the coaming and the first lead-outplate in a tangent transition mode; and blades of the wind wheel are formed by connecting inner arc pieces and outer arc pieces in a tangent transition mode. According to the fan, the structures and sizes of the air outlet, the air duct and the wind wheel are optimized, so that the whole air outlet is reasonably and gradually increased from inside to outside, the exhaust air rate and the exhaust air pressure are increased, and exhausted air can be conveyed to a farther position.

The invention provides a pumping system; the pumping system comprises a hopper, a distribution valve and a swinging oil cylinder, wherein the hopper comprises a hopper body and a screen; the pumping system further comprises an earing; the screen is mounted at a material inlet of the hopper body; the screen is connected with a hopper body moving pair; the distribution valve is mounted in the hopper body; one end of the swinging oil cylinder is hinged on the hopper body and the other end of the swinging oil cylinder is used for driving the distribution valve to rotate; one end of the earing is connected with the other end of the swinging oil cylinder; the other end of the earing is connected with the screen in a rotating way; and while driving the distribution valve to rotate, the swinging oil cylinder can be used for driving the screen to move through the earing. The invention further provides engineering machinery. According to a technical scheme provided by the invention, the screen can be directly supplied with power by the swinging oil cylinder instead of a motor to vibrate; and as a vibrating device for swinging the screen is positioned behind the hopper and a swinging protective cover is arranged outside the hopper for protection, the whole hopper is simpler, beautiful and elegant.

The invention discloses a structure of an electronic product enclosure panel and a manufacturing process thereof. In the invention, metal with characteristics of good radiation protection effect, high strength, high-temperature resistance and the like, and plastic cements with characteristics of light weight, convenience of structure machining and the like are fully combined to realize injection molding on the metal surface through an intermediate medium hot melt adhesive membrane, so that a purpose of fixing and combination of a metal panel and a plastic element is reached, and an electronic product enclosure panel using the metal panel as the enclosure external surface and using the plastic element as the structural element is manufactured, therefore, the electronic product enclosure panel has the advantages of good radiation protection effect, high strength, corrosion resistance, high-temperature resistance, attractiveness, light weight, convenience for machining and the like and can manufacture complex structural elements and the like.

The invention discloses a feeding device for a C-shaped annular thin sheet. The feeding device is characterized by comprising a feeding drum (1), a fixing support (2), a push plate (3), a sliding rail (5) and a driving device (6); the sliding rail (5) is fixed on a workbench; the push plate (3) is connected with the driving device (6), slides along the sliding rail (5) back and forth, the upper surface of the push plate (3) is a stepped surface with a lower front part and a higher back part, and the height of the step is equal to the thickness of the C-shaped annular thin sheet; and the feeding drum (1) is fixed above the push plate (3), and the lower bottom surface of the feeding drum (1) is level with an upper stepped surface of the push plate (3). The feeding device disclosed by the invention gets rid of the interference of other factors in separating and feeding processes, and has relatively higher reliability when being used for feeding the C-shaped annular thin sheet.

The invention discloses a thermal expansion valve with a unidirectional control function. The thermal expansion valve comprises a valve body having an inlet passage and an outlet passage, a temperature sensing part disposed at one end of the valve body, and a first spool part disposed in an inner cavity of the valve body. The first spool part comprises a valve stem and a first spool; the valve stem is abutted to the temperature sensing part; the first spool coordinates with a first valve port in the inner cavity to control the quantity of medium fluid flowing from the inlet passage to the outlet passage. The valve body further comprises an accommodating portion extending from the inlet passage to the inside of the valve body. The accommodating portion is provided with a second valve port. A second spool part is disposed in the accommodating portion. A limit pin used for limiting an opening position of the second spool part is further disposed in the accommodating portion. When the medium flows from the inlet passage to the outlet passage, the second valve port is closed; when the medium flows from the outlet passage to the inlet passage, the second valve port opens. Compared with the prior art, the thermal expansion valve has the advantages that the influence upon flow capacity of the unidirectional valve is effectively decreased on the premise of improving manufacturability.

The invention provides an automobile tire retaining device, belongs to the technical field of logistic equipment and solves the technical problem that existing automobile tire retaining devices are troublesome to manufacture, heavy in mass and low in using convenience. The automobile tire retaining device comprises a fixing seat and an adjusting member connected on the fixing seat, the front end of the adjusting member is fixedly connected with a blocking plate for being abutted against an automobile tire, and the adjusting member can be horizontally moved back and forth on the fixing seat andcan be positioned after moving; a plate body on each of the left side and the right side of the blocking plate is provided with a punched hole formed by punching, a main blocking plate body is formedbetween the two punched holes, side blocking plate bodies surrounding the punched holes are formed on two sides of the main blocking plate body respectively, and a supporting plate supporting betweenthe main blocking plate body and the adjusting member is integrally formed on each of the left lateral side and the right lateral side of the main blocking plate body and is formed by bending the plate body at the edge of the corresponding punched hole to the rear side of the blocking plate. The automobile tire retaining device has the advantages of convenience in manufacturing and high structural strength.

The invention provide a non-skid tire which comprises a tire tread structure, a tire sidewall structure and tire shoulders, wherein the tire tread structure and the tire sidewall structure comprise rubber, cord fabrics and steel wires; the tire shoulders comprise non-skid teeth and are positioned at two sides of the tire tread; grooves can be arranged between the tire shoulders and the tire tread; and the non-skid teeth can be in a structure of tetragonal pyramids, triangle pyramids, triangular strips, hexagonal pyramids, semi-spheres, and the like. In the invention, the non-skid teeth are designed at the tire tread especially the tire shoulder part, the grooves are additionally arranged, the tire width needs not to be changed to increase the surface area of the tire tread, and the non-skid teeth also increase the frictional force between the tire and the ground, thereby improving the grounding performance of a vehicle and achieving the non-skid purpose.

The invention relates to a photovoltaic bracket structure. The photovoltaic bracket structure comprises a base; stand columns are arranged on the base; a mounting frame I is arranged on the stand columns; a mounting frame II perpendicular to the mounting frame I is arranged on the mounting frame I; the mounting frame I and the mounting frame II are fixedly connected through a buckle assembly; thebase comprises a bottom plate and connecting plates; a clamping groove plate is arranged on each connecting plate; a movable type clamping table is arranged on each clamping groove plate; a connectinggroove is formed in the clamping groove plate and the corresponding connecting plate; a connecting hole is formed in each movable type clamping table; a connecting bolt is arranged in each connectinghole; and the stand columns are arranged in the connecting plates of the base through the connecting bolts. The photovoltaic bracket structure is convenient to use and firm in connection.

The invention discloses a box structure with a vacuum insulating layer and a refrigerator. The box structure comprises a vacuum box and a vacuum box door connected to the front end of the vacuum box.The vacuum box comprises a box outer shell and a box inner shell. The inner surface of the box outer shell and the outer surface of the box inner shell are each provided with a first aluminum foil layer. The box inner shell is embedded into the box outer shell. The end of the box inner shell and the end of the box outer shell are fixedly connected and sealed to form a shell cavity between the boxinner shell and the box outer shell. The box inner shell or the box outer shell is connected with a first bleeding pipe assembly. The vacuum box door comprises a door body outer board and a door bodyinner board. The inner surface of the door body outer board and the outer surface of the door body inner board are each provided with a second aluminum foil layer. The refrigerator comprises a main box shell. The box structure with the vacuum insulating layer is connected to the interior of the main box shell. The box structure is provided with the vacuum box with the better heat insulating effectand the vacuum box door with the better heat insulating effect and is novel in structure and high in practicality.

The invention discloses a special optical fiber preform rod sealing device which comprises an upper outer sleeve, an inner sleeve and a lower outer sleeve which are connected in sequence, and is characterized in that the inner sleeve is of a reducing structure, the upper end of the inner sleeve is sleeved outside a preform rod core rod extension rod in a sealing manner, the lower end of the inner sleeve is sleeved outside a quartz tube in a sealing manner, and the preform rod core rod extension rod is arranged in the quartz tube; and a cavity is formed between the inner wall of the inner sleeve and the preform core rod extension rod and is communicated with an air inlet formed in the cavity. For a small-diameter preform for drawing a special optical fiber, the structure is convenient to process, simple and practical, has low requirement on the size of the special optical fiber preform as a sealing object, has certain installation allowance, and is more convenient to install and use. The sealed special optical fiber preform is used for drawing of a special drawing tower and can be used for production of various special optical fibers.

The invention discloses a supporting component for an electric heater. The supporting component comprises a supporting base, an electric heater supporting part and an electric heater fixing part, wherein the electric heater supporting part is in insulated connection with the supporting base; the electric heater fixing part is connected with the electric heater supporting part; an electric heater fixing cavity for mounting the electric heater is defined between the electric heater fixing part and the electric heater supporting part. According to the supporting component for the electric heater, the supporting base, the electric heater supporting part and the electric heater fixing part are matched to support and fix the electric heater, so that the electric heater can be supported in an insulated manner, a long and narrow electric heater is difficult to damage or break in environments of transportation after mounting, falling and the like, and the electric heater can be firmly and safely mounted on an air conditioner; the supporting component with such a structure is convenient to machine, simple in structure, easy and convenient to mount and high in electric heater supporting performance, and can be adapted to a long supporting distance.

The invention relates to a horizontal frequency adjusting mass damper. The horizontal frequency adjusting mass damper comprises wall bases, locking nuts, springs, a mass block, a damping fluid box, steel beads, damping fluid and a screw rod. The wall bases are located on the outermost sides, the two wall bases are connected through the screw rod, and the joints are fastened by the locking nuts. The damping fluid box is welded to the upper portion of the screw rod connected with the lower portions of the wall bases, the bottom of the damping fluid box is fully paved with the steel beads, and the damping fluid box is filled with the damping fluid. The mass block is placed on the upper portions of the steel beads, and the mass block is connected with the wall bases on the two sides through the springs. The horizontal frequency adjusting mass damper has the beneficial effects that the horizontal frequency adjusting mass damper packs the damping fluid into the damping fluid box, the steel beads are placed in the box, so that the damping fluid achieves the damping effect, and meanwhile can work as lubricating oil of the steel beads, and the friction force when the mass block moves is reduced. The structure is convenient to machine and mount, and the friction force is smaller.

The invention discloses a pressure-resistant liquid storage tank, which comprises a liquid storage tank body and a head arranged at both ends of the liquid storage tank. The head at one end of the liquid storage tank is provided with a liquid inlet hole, and the tank wall of the liquid storage tank body is Both the direction and the circumference satisfy the sine wave curve equation. The invention also discloses the manufacturing method of the pressure-resistant liquid storage tank, which mainly adopts the forming method of water injection and pressurized bulging. excellent.

The invention discloses a rear test bed structure of a motorcycle shifting fork checking fixture. The structure is characterized in that a whole rear test bed is cylindrical and is fixed to a bottom plate, the upper end face of the rear test bed is provided with a shifting fork stress shaft test vertical groove right towards the direction of a shifting fork assembly hole test shaft, the rear test bed under the shifting fork stress shaft test vertical groove is provided with a shifting fork stress shaft test annular groove along the circumferential direction, and the bottom of the shifting fork stress shaft test vertical groove at the upper end of the rear test bed is provided with a locating through hole arranged downward. The rear test bed structure can achieve test and locating of a shifting fork locating shaft twice, and the locating does not interfere with each other. The rear test bed structure can achieve test of a plurality of parameters of the shifting fork through match with a front test bed, and meanwhile has the advantages of being convenient to install and locate, convenient to process, capable of lowering processing loss and the like.

A reflective boundary comprises a reflective plate and a spacer, The separator has a side plate and a connecting plate formed by bending relative to the side plate. The reflecting plate and the connecting plate are respectively formed with a convex part and a through hole, and the convex part can be fitted and inserted with the through hole. The convex part can be deformed in the through hole to rivet and consolidate the connecting plate and the reflecting plate together. The reflective boundary, on the one hand, the use of screws, On the other hand, the rivet connector is convenient to manufacture, and the thickness of the reflector plate need not be increased compared with the metal integrated forming scheme, which is conducive to the lightweight design of the rivet connector. The invention also discloses an antenna including the reflective boundary and a manufacturing method of the reflective boundary.

The invention relates to a method and a device for detecting the elasticity modulus of corn stalks, which belong to the technical field of modern agricultural equipment. The invention adopts a cantilever beam as a theoretical model, external force is horizontally applied to corn stalks with fixed roots, and the calculation formula of the elasticity modulus of the stalks is calculated according torelevant mechanical principles; according to the measurement principle, a relevant measurement device is designed; and during measurement, the external force with a horizontal action is applied to the corn stalks by a push rod, the corn stalks are bent, the applied external force is transformed by a sensor, an automatic display instrument and the like to display the numerical value of the elasticity modulus of the corn stalks, and the numerical value of the stress intensity of the corn stalks obtained by measurement can be used as one parameter for a corn seed breeding expert to select and breed high-quality corn. The invention has simple operation, scientific measurement principle, reliable measurement result, simple structure and low production cost.

The invention discloses a multifunctional positioning part for a shear wall, which belongs to the technical field of building components, and includes a positioning rod, pad blocks are provided at both ends of the positioning rod, and hooks are provided on the positioning rod inside the two pad blocks. The beneficial effect is that the structure is simple, the effect of pulling and positioning the shear wall is remarkable, and the construction and installation are convenient, and the thickness of the protective layer of the shear wall and the overall thickness of the shear wall can be effectively controlled to meet the specification required by the construction. The structure is easy to process, can be produced in batches, prevents the corrosion phenomenon of the wall body, and ensures the beauty of the wall surface.

The invention discloses a stepless shift baffle pin board. The stepless shift baffle pin board comprises a positioning support seat, a baffle pin board, a baffle pin and an adjusting nut, wherein a shaft hole is formed in the positioning support seat, a flanged shaft is arranged on the back part of the baffle pin board, the flanged shaft passes through the shaft hole, threads are formed on the flanged shaft, the adjusting nut is installed on the flanged shaft and is matched with the positioning support seat so as to fix the baffle pin board, and the baffle pin is rotatably arranged on the front end of the baffle pin board. The flanged shaft passes through the shaft hole of the positioning support seat and is fixed by adopting the adjusting nut, and the front-and-back position of the bafflepin board can be conveniently adjusted by rotating the adjusting nut, so that stepless shift adjustment is realized, and different specifications of steel bars can be bent; the threaded connection and fixing are adopted, so that slip shifting cannot be generated; and the baffle pin on the baffle pin board is rotatably arranged, so that the frictional resistance with the steel bars can be reducedby virtue of rotation when the steel bars are bent, and the surfaces of the steel bars are prevented from being damaged. The stepless shift baffle pin board has the great advantages of convenience instructure machining, low cost and easiness in adjustment.

The invention discloses a conical valve without a middle cavity gap. The conical valve comprises a cone, a conical valve element arranged in the cone and a valve rod installed on the cone and connected with the conical valve element, the middle cavity gap is formed between the cone and the conical valve element, a communicating flow channel is formed in the conical valve element, and a main flow channel is formed on the cone. The middle cavity gap is filled with a sealing piece. The conical valve has the following advantages and effects that no connection gap exists between a valve body and the valve element, and therefore the corrosion resistance of the valve is further improved, the service life of the valve is prolonged, the structure is convenient to machine, the application range is wide, zero leakage is realized, no dead corner exists in a cavity, no liquid is accumulated, and no residual medium exists.

The invention provides a pair of adjustable tongs. The pair of adjustable tongs comprises a first clamping arm and a second clamping arm which are symmetrically hinged. The first clamping arm and thesecond clamping arm each comprise a handle, a tongs shoulder, a tongs arm, an adjustable rotary buckle and a clamping head which are connected in sequence, wherein the adjustable rotary buckles are used for adjusting the clamping angle of the tongs, and the clamping heads are used for clamping raw materials. By adding the adjustable rotary buckles, the materials can be conveniently clamped at different angles; by adding detachable sawteeth to the clamping heads, the damage-free clamping of the raw materials is realized, and friction force is increased; and moreover, the pair of adjustable tongs is simple in structure, convenient to machine and low in maintenance cost.

The invention relates to a synchronous ring mechanism of a mode switch valve of a variable-cycle engine and belongs to the technical field of high-performance gas turbine engines in the aerospace technique. A mode switch valve mechanism is used for changing the work state of the engine to adapt various flight conditions. The mode switch valve is arranged at the outlet of an outer duct of the engine and comprises a front section of an outer case, a rear section of the outer case, a valve sheet, a seal ring, a connecting rod, a synchronous ring, a front gas seal case, a rear gas seal case, a synchronous ring guide rail, an actuating cylinder and a synchronous ring guide groove. The synchronous ring mechanism of the mode switch valve of the variable-cycle engine mainly aims at the synchronous ring which moves axially along the engine under the actuation of the actuating cylinder and the motion of the synchronous ring is matched with the front section of the outer case. The invention provides four different synchronous ring structure schemes which are all capable of realizing motion function.

The invention relates to the technical field of dies, in particular to an ejector pin exhausting structure. The ejector pin exhausting structure comprises an ejector pin body, wherein a plurality of exhausting grooves are formed in the upper end of the ejector pin body, and all the exhausting grooves are evenly spaced, and have equal depth; and a certain distance is formed between the top end of the ejector pin body and the most adjacent exhausting groove at the lower part, so that the exhausting grooves can be prevented from being too close to a casting and blocked by molten liquid, and the exhausting effect can be realized. Compared with the prior art, the ejector pin exhausting structure has the advantages as follows: a plurality of exhausting grooves with equal width are formed in thetop end of the ejector pin body and have a certain distance with the top end of the ejector pin body, so that the exhausting grooves can be prevented from being too close to the casting and blocked bythe molten liquid, and the exhausting effect can be realized; and the structure adopts a simple and easy processing method, has a good exhausting effect and is not prone to blocking.

The invention discloses a damage identifying piezoelectric sensor capable of repeated use. The sensor comprises a piezoelectric ceramic plate, and is characterized by comprising a metal box bonded tothe surface of a detected member, a lead through hole is arranged in the center of the top plate of the metal box, one sidewall of the metal box extends vertically upwards to form a knocking surface to dismount the metal box from the detected member by knocking, the piezoelectric ceramic plate is positioned in the metal box and tightly pasted and fixed onto the base plate of the metal box, and a lead of the piezoelectric ceramic plate penetrates the lead through hole and is connected with an external impedance analyzer. The piezoelectric sensor is simple in manufacture and convenient to operate, and can effectively eliminate a test error caused by difference of the piezoelectric ceramic plate itself.

The invention provides a hanging adjusting device for a blast furnace tapping machine and a using method. The hanging adjusting device for the blast furnace tapping machine comprises a U-shaped structure and nuts, wherein the U-shaped structure comprises a U-shaped frame and threaded parts, the U-shaped frame comprises a U-shaped frame bottom and two U-shaped frame side parts, and the U-shaped frame bottom is connected to the bottom ends of the two U-shaped frame side parts; the U-shaped frame is arranged outside a tapping machine body in a sleeving mode in the using process; The threaded parts are arranged at the top ends of the two U-shaped frame side parts; the threaded parts are arranged in circular holes of a tapping machine bottom plate in a penetrating manner during use; and the nuts are in threaded connection with the threaded parts, and the nuts limit the tapping machine bottom plate. According to the hanging adjusting device for the blast furnace tapping machine, only two nuts need to be dismounted and mounted, the dismounting and mounting time can be greatly shortened, the dismounting and mounting time of a tapping machine device can be shortened by 2 / 3, the tapping machine can be replaced and overhauled through online overhauling, and therefore the flexibility is better.

The invention discloses a recirculating double-wire screwing device, comprising a base mechanism and a rotating mechanism. The base mechanism includes a pressure-bearing bracket and a positioning inner cylinder. A first through hole is opened in the middle of the pressure-bearing bracket, and the positioning inner cylinder is fixed connected to the lower end surface of the pressure bearing bracket outside the first through hole; the rotating mechanism includes a rotating outer cylinder and a rotating handle, the rotating handle is connected to the lower end of the rotating outer cylinder, and the outer ends of the rotating outer cylinder on both sides of the rotating handle are respectively provided with There are a first wire hanging buckle slot and a second wire hanging buckle slot; a rotating auxiliary component is arranged at the connection end of the positioning inner cylinder and the pressure bearing bracket, and a toggle rod is connected to the inner end of the rotating outer cylinder; After the cylinder sleeve is positioned outside the inner cylinder, the rotating outer cylinder is connected with the rotating auxiliary assembly through a toggle rod. When the machine is used to screw the steel wire of the fixed formwork, the damage of the original components and the steel wire is reduced, the material is saved, and the safety is higher. Especially when looking up and working at a high place, the effect of screwing is better, and the workers work more efficiently. Effortless.