102results about How to "Cooperate accurately" patented technology

The invention relates to the technical field of metal casting, in particular to a preparation method of a casting with a complex pipe cavity and a mold, and the preparation method comprises the steps of mold core preparation, wax mold design, basic wax mold preparation, integral wax mold preparation, mold shell preparation and smelting and pouring. The basic wax mold preparation comprises the step of designing a plurality of block wax molds according to a casting pipe cavity structure; the whole wax mold preparation comprises the steps that a mold core and a plurality of block wax molds are combined and assembled through a splicing tool, so that the mold core is arranged in a multi-angle special-shaped pipe cavity defined by the block wax molds, and a whole wax mold is obtained; wherein partial areas of at least partial pipe bodies of the mold core are the same as the inner diameter of the multi-angle special-shaped pipe cavities in the corresponding positions so as to be precisely matched, and the rest partial areas of at least partial pipe bodies are arranged in the multi-angle special-shaped pipe cavities in a suspended mode. By means of the preparation method, it can be guaranteed that the block wax mold is accurately matched with the mold core, and the size precision of an inner cavity of a later casting can be guaranteed through the size precision of the mold core.

The invention provides a wind power tower hoisting auxiliary positioning device, and relates to the technical field of wind power tower hoisting devices, the wind power tower hoisting auxiliary positioning device comprises a hoisting connecting assembly, an outer clamping mechanism and an inner clamping mechanism, the outer clamping mechanism and the inner clamping mechanism are respectively mounted above and below a connecting circular truncated cone, the hoisting connecting assembly is mounted on the outer clamping mechanism, and the hoisting connecting assembly is mounted on the inner clamping mechanism. The center and the edge of the inner clamping mechanism are provided with a laser emitting element and an inclination sensor, and the outer clamping mechanism and the inner clamping mechanism are used for clamping a wind power tower. Whether the wind power tower drum is located over the foundation or not can be determined through a positioning point where laser falls on the foundation, and meanwhile the inclination sensor can monitor whether the wind power tower drum is in a vertical state or not; the design of the laser emitting element and the inclination sensor can assist the crawler crane in achieving accurate and rapid matching between the wind power tower drum and the threaded hole in the foundation.

According to the technical scheme, the pincerlike mutual inductor is characterized in that a first shell and a second shell are included, each of the first shell and the second shell comprises a pivoting end and an opening and closing end, a locking mechanism is arranged at the opening and closing end, the locking mechanism comprises a locking bolt and a locking nut, a through mounting hole is formed in the first shell, and a through hole is formed in the second shell. The locking bolt is movably connected with the mounting hole, a spring is axially arranged in the mounting hole, the two ends of the spring abut against the head of the locking bolt and the inner wall of the mounting hole respectively, and the screw portion of the locking bolt extends out of the mounting hole. A butt joint hole corresponding to the mounting hole is formed in the second shell, the locking nut is fixedly arranged in the butt joint hole, and a screw rod part of the locking bolt extends into the butt joint hole and can be in threaded connection with the locking nut. The device is provided with the locking mechanism, and when long-time detection is needed, the locking mechanism can lock the mutual inductor, so that the mutual inductor is stably clamped.

The utility model discloses a gynaecology and obstetrics uterine cavity endoscope convenient to adjust, the endoscope comprises an endoscope main body, the left side of the endoscope main body is provided with an endoscopic tube, the left side of the endoscopic tube is fixedly connected with a transparent tube head, the transparent tube head is internally provided with a searchlighting assembly, and the searchlighting assembly is fixedly connected with the endoscope main body. A cavity is formed in the right side of the endoscope body, a first rack and a second rack are slidably connected to the upper side and the lower side of the interior of the cavity respectively, the left side of the first rack and the left side of the second rack are connected with a searchlighting assembly through a first pull rope and a second pull rope respectively, and an adjusting assembly is arranged between the first rack and the second rack. The first pull rope and the second pull rope move in opposite directions by rotating the handle, at the moment, the first pull rope drives the mounting plate, the endoscope head and the searchlight to rotate around the circular shaft, and therefore the angle of the searchlighting assembly can be conveniently adjusted, medical staff can conveniently collect images in all directions of a treated part of a patient, and the practicability of the uterine cavity endoscope is improved.

The utility model relates to the crimping technical field, concretely relates to a crimping structure, include: the department of inserting, is used for inserting in the department of inserting hole of PCB board, force department is as the force point of providing pressure, when force department force carries out crimping operation, the department of inserting moves along its axial motion and pin needle contact in the department of inserting hole, produces extrusion to pin needle, simultaneously, the department of inserting occurs perpendicular to its department of inserting direction's deformation, makes the department of inserting fixed on the PCB board personally, and pin needle crimping is fixed in the PCB board, in the utility model, pin needle is installed on the PCB board through the mode of crimping, and the influence of whisker caused by soldering to the stability of equipment is eliminated.

The application belongs to the technical field of transportation feeding, and particularly relates to a fish tail plate production feeding device, which comprises a base frame, the upper end of the base frame is provided with a sliding rail, the left side of the upper end of the base frame is a slope, the slope of the base frame is slidably provided with a tray, the two sides of the tray are both rotatably connected with pulleys, the pulleys slide on the inner wall of the sliding rail, the side of the base frame is provided with a switch, the switch is used for controlling the rotation of the pulleys, the right side of the upper end of the base frame is provided with a top plate, the right side of the top plate is provided with a transfer device; the transfer device comprises a conveying round roller, the conveying round roller is rotatably connected to the right side of the top plate, and the conveying round roller is on the same horizontal line with the top plate. By arranging the transfer device, the raw material metal plate for fish tail plate production can be automatically fed, each raw material metal plate can be positioned and fixed, accurate machining operation can be achieved, and after being machined into a fish tail plate, the fish tail plate can be automatically discharged, realizing full-automatic production operation.

The invention relates to the technical field of air source heat pump steam engines, in particular to an efficient and environment-friendly air source heat pump steam engine and application of the efficient and environment-friendly air source heat pump steam engine. A steam outlet of a gradient type liquid separation evaporator communicates with a gas-liquid separation tank and a first steam inlet of an inverter compressor through a four-way valve, and a monitoring assembly is arranged between the inverter compressor and the four-way valve; the variable-frequency compressor is communicated with the double-flow-channel condenser, the double-flow-channel condenser is communicated with the liquid storage device, the liquid storage device is communicated with the flash tank type economizer through the two-stage throttling assembly, the top of the flash tank type economizer is communicated with a steam supplementing opening of the variable-frequency compressor, and the flash tank type economizer is communicated with the gradient type liquid separation evaporator through the two-stage throttling assembly. The gradient type liquid separation evaporator is provided with a low-temperature auxiliary assembly. By the adoption of the structure, air serves as a heat source, zero pollutant emission is achieved, the frequency of the inverter compressor is dynamically adjusted according to loads, high efficiency and energy saving are achieved, the operation cost is reduced, and requirements of multiple fields such as textile printing and dyeing, food processing, chemical and medicine and agricultural greenhouse heating are met.

A discharging device for a dishwasher solid detergent dispenser includes a conveying channel and a discharging channel. A pushing component is movably mounted on the conveying channel, and a door opening / closing component is movably mounted on the discharging channel. The pushing component and the door opening / closing component are linked together by a synchronization mechanism. In this invention, the pushing component pushes the solid detergent from the conveying channel into the discharging channel, and the door opening / closing component opens the discharging channel, allowing the solid detergent to pass smoothly through and reach the dishwasher's inner tub. Then, the pushing component resets, and the door opening / closing component closes the discharging channel, preventing moisture from the dishwasher's inner tub from flowing back into the discharging channel and reaching the solid detergent in the conveying channel, thus preventing the solid detergent from dissolving.

This invention provides a high-strength and high-toughness seamless steel tube for automotive bumper poles and its manufacturing method. The high-strength and high-toughness seamless steel tube for automotive bumper poles comprises an Fe base and chemical elements dispersed in the Fe base in the following mass percentages: C: 0.08–0.22, Si: 0.1–0.45, Mn: 1–1.8, Ni: 0.1–0.6, Cr: 0.05–1, Ti: 0.01–0.05, B: 0.005–0.02, Cu: 0.05–0.5, Al: 0.015–0.06, Nb: 0.01–0.1, N: 0.005–0.015. The high-strength and high-toughness seamless steel tube for automotive bumper poles of this invention exhibits good comprehensive mechanical properties and high dimensional accuracy, especially good straightness, enabling accurate fit with connecting components.

The application discloses a PCB oxidation-preventing treatment device, and relates to the oxidation-preventing treatment field of pretreatment plates, which comprises a main frame body, a spraying box body is arranged on the upper surface of the main frame body, and a micro-etching mechanism is arranged on the upper surface of the main frame body. The micro-etching mechanism comprises a cleaning assembly and a soaking assembly. The cleaning assembly comprises a sliding table body, the sliding table body is arranged on the upper surface of the main frame body, one side surface of the sliding table body is further provided with a sliding groove, one side of the inside of the sliding groove is provided with a bottom protruding block, and the inside of the sliding groove is provided with a limiting sleeve block. The soaking assembly comprises a vertical sliding rail, the bottom surface of the vertical sliding rail is connected with one side surface of a liquid pool bottom plate, and the inside of the vertical sliding rail is provided with an internal hydraulic rod. In the scheme, the micro-etching mechanism can efficiently remove the oxidation layer and pollutants of the pretreatment plate, provide a clean surface, and can also realize operations such as vibration liquid removal, liquid filtration and purification, and concentrated liquid recycling, so that the treatment effect and resource utilization rate are improved.

This utility model provides an improved machining mold for casting machinery manufacturing, including a base and a stamping plate. A female mold is fixedly installed on the upper end of the base, and a male mold is fixedly installed on the bottom of the stamping plate. The female mold can accommodate the male mold and process the workpiece. The female mold has an elastic mechanism inside. Fixed rods are fixedly installed on both sides of the base, and fixed plates are fixedly installed on the upper ends of the fixed rods. The upper surfaces of the two fixed plates abut against the two sides of the fixed plates, respectively. The elastic mechanism includes a rectangular cavity opened inside the female mold. A sliding plate is slidably installed inside the rectangular cavity, and the bottom of the sliding plate is elastically connected to the bottom wall of the rectangular cavity by a spring. This utility model effectively prevents the mold from shaking or shifting during the stamping process, ensures the precise fit between the male and female molds during processing, and helps to improve the processing accuracy of the workpiece.

The utility model provides a welding laser center calibration device for a camera module. The welding laser center calibration device comprises a point inspection rod, an energy point inspection instrument, a base and a lifting table. The base is arranged on the upper surface of the lifting table, and the lifting table drives the base to move upwards; the energy point inspection instrument is installed on the base, the point inspection rod is vertically arranged on the upper surface of the energy point inspection instrument, and the point inspection rod is provided with a detection channel penetrating through the upper surface and the lower surface of the point inspection rod along the center line of the point inspection rod. And adjustment is convenient, the calibration precision is high, and the subsequent welding quality can be ensured.

The utility model discloses a rapid round steel butt joint device which is mainly composed of a shell, clamping mechanisms symmetrically arranged at the two ends of the shell and a driving mechanism located in the shell. The clamping mechanism is connected with the shell in a sliding mode through a connecting sliding block and comprises a base fixed to the connecting sliding block, a lower arc-shaped base and an upper arc-shaped base on the base are connected in a hinged and threaded mode, and a clamping screw and an arc-shaped pressing block are arranged to stably clamp round steel. The driving mechanism comprises a driving rack fixed to the connecting sliding block, a driving gear meshed with the driving rack and connected with the driving rack through a rotating shaft, and a rotating disc. According to the device, through the ingenious structural design, on the aspect of butt joint precision, position deviation can be effectively reduced, the butt joint coaxiality of round steel is improved, and the high-end manufacturing requirement is met; in terms of working efficiency, the position of round steel can be rapidly adjusted, and working time is shortened; and in the aspect of safety, the round steel is prevented from sliding off, the device adapts to complex operation environments, and the remarkable application value in industrial production is achieved.

The utility model relates to the technical field of welding equipment, in particular to a welding device facilitating intelligent feeding, which comprises a conveying body and a discharging table, a support frame is fixedly connected to the lower surface of the conveying body, a gear transmission box is fixedly connected to one side of the lower surface of the conveying body, and a driving motor is fixedly connected to one side of the gear transmission box. An adjusting column is fixedly connected to the lower surface of the discharging table, a fixing block is fixedly connected to the lower surface of the adjusting column, and a mounting mechanism and a feeding mechanism are arranged on the upper surface of the discharging table. A mounting mechanism is composed of first mounting frames, fixing rods, second mounting frames and a transverse plate, the first mounting frames are arranged on the left side and the right side of the upper surface of the discharging table and connected with the second mounting frames through the fixing rods, and one sides of the second mounting frames are fixedly connected with the transverse plate. The feeding mechanism has the advantages that a stable and reliable installation foundation is provided for the feeding mechanism, it is guaranteed that the feeding mechanism does not shake or move in the operation process, and therefore the stability and accuracy of the whole feeding process are guaranteed.

This invention relates to the field of cement pole processing technology, and more particularly to a rapid concrete molding device for cement poles. The device includes a traveling crane and a central support fixed to it. A support plate is fixed to the central support, and two guide rails are symmetrically fixed to the support plate. Multiple coaxial arc-shaped slides are formed on the guide rails, and each arc-shaped slide contains a primary roller. A guide shaft is rotatably connected to the primary roller, and an active plate is fixed to the guide shafts on both sides. A scraper for smoothing the concrete surface is slidably mounted on the active plate. A drive mechanism is installed on the support plate. When smoothing the concrete surface is required, the drive mechanism drives the primary roller and the active plate to move upward along the arc-shaped path of the guide rails. This device achieves full automation of the concrete smoothing, pressing, and mold cleaning process, significantly improving the molding efficiency of cement pole concrete.

The utility model discloses a motor coil coaxiality calibration tool, and belongs to the technical field of motor production. A motor coil coaxiality calibration tool comprises a base, and further comprises a pressing plate arranged on the top of the base in a lifting mode, and an upper limiting groove and an upper containing groove are formed in the pressing plate; the second dial indicator is used for detecting the coaxiality of the auxiliary shaft and is arranged on the pressing plate; the first dial indicator is used for detecting the coaxiality of the motor protection shell and is arranged on the pressing plate in a sliding manner; according to the utility model, the screw rod is adopted to drive the pressing plate to ascend and descend on the base, so that the pressing plate can be prevented from being carried frequently, the consumption of physical strength is reduced, the pressing plate can be limited by the guide rod, the pressing plate can be matched with the base more accurately, and the calibration quality is improved; the coaxiality of the auxiliary shaft and the motor protection shell can be visually detected, whether the coaxiality meets the requirement or not can be conveniently judged, and the production efficiency is improved.

The utility model discloses a novel conductive fabric auxiliary material pressure maintaining structure, which comprises a main body, a double-column ejector rod arranged below the main body, a polyurethane compression ring arranged below the double-column ejector rod, a gland guide limit arranged on the right side of the polyurethane compression ring, and a pressure maintaining positioning seat arranged below the gland guide limit, a gland lock hook is installed on the right side of the pressure maintaining positioning seat, a gland lock hook seat is installed on the gland lock hook, a gland lock hook shaft is installed on the gland lock hook seat, and an inner sinking screw is installed on the left side of the gland lock hook shaft. According to the novel conductive fabric auxiliary material pressure maintaining structure, the operation hole facilitates operation in the main body, the positioning hole improves the assembly precision, and device stability and function accuracy are ensured. The gland lock hook is connected through a second connecting hole, a second spring enables the lock hook to reset, operation convenience is improved, and the service life of parts is prolonged. A gland lock hook seat screw mounting hole is used for fixing, and a first connecting hole is used for strong connection to guarantee stability. A first spring of the double-column ejector rod provides elastic force to keep stable ejection, a polyurethane compression ring is in butt joint with a butt joint hole, and components are protected through material characteristics.

The invention discloses a voltage transformer convenient to install, and relates to the technical field of voltage transformers, the voltage transformer comprises a base, the base is rotatably connected with the bottom of a box body, the bottom of the base is slidably connected with a round rod, one end, close to the base, of the round rod is fixedly connected with a compression spring, and one end, away from the base, of the round rod is fixedly connected with a fixed rod; the number of the fixing rods is four, the four fixing rods are evenly distributed with the round rod as the center, a hexagonal frame is fixedly connected to the ends, away from the round rod, of the fixing rods, a fixing frame is fixedly connected to the bottom of the box body, and an annular groove is formed in the end, close to the hexagonal frame, of the fixing frame. According to the voltage transformer convenient to install, the bolt is limited and fixed through the hexagonal frame, and the safety accidents that in the working process, due to the fact that the bolt is loosened, when equipment runs or is interfered by external force, the bolt possibly falls off completely, connection of related parts of the equipment is lost, the equipment breaks down, and the parts possibly fall off to hurt people are avoided.

The utility model relates to an engine cylinder cover grabbing device, and belongs to the technical field of cylinder cover grabbing and transferring. The positioning pressure head is arranged on the rack, the clamping mechanism is used for holding a workpiece to be grabbed, the clamping mechanism comprises a left lifting rod, a right lifting rod and a driving mechanism, and the driving mechanism is used for driving the left lifting rod and the right lifting rod to be matched with each other to clamp or loosen the workpiece; the positioning pressing head is matched with a positioning hole in a workpiece to be grabbed, the positioning pressing head is arranged on the machine frame in a lifting mode, and the device further comprises a pressing head self-locking mechanism used for locking the positioning pressing head. The pressing head self-locking mechanism comprises a clamping groove, a pressing block and a pressing driving cylinder which drives the pressing block to be matched with the clamping groove in an inserted mode to lock the positioning pressing head. The engine cylinder cover assembling device is simple in structure, convenient to operate, stable in workpiece grabbing and safe in the transferring process, manual participation is not needed, stable and safe transferring of workpieces is achieved, and therefore the engine cylinder cover assembling efficiency is improved.

The invention discloses tire dismounting and mounting equipment for a loader. The tire dismounting and mounting equipment comprises a hydraulic system, a tire dismounting and mounting mechanism and a rim clamping device, the hydraulic system comprises a hydraulic cylinder, a hydraulic station and an electrical control system; the tire dismounting mechanism comprises a fixed support, a fixed bracket, a steel ring dismounting head, a movable bracket and a U-shaped tire fixture; the rim clamping device comprises a lead screw, a nut, a connecting rod, a clamping tongue and a support. Through cooperation of the hydraulic system, the tire dismounting and mounting mechanism and the rim clamping device, the tire dismounting and mounting equipment has the following advantages that (1) the equipment can be operated by a single person, other mechanical assistance is not needed, a single person of an operator can complete tire dismounting and mounting, and time and labor are saved; safety and controllability are achieved, all parts are matched accurately in the operation process, potential risks such as easy falling of steel wire rope binding are avoided, and personnel safety is guaranteed; and (3) the efficiency is improved: the disassembly and assembly time of the loader tire is obviously shortened, and the labor intensity of maintenance operation is reduced.

The utility model relates to the field of bending mechanism, and disclose a kind of bending mechanism of hydraulic bending machine, including support, hydraulic cylinder one, piston rod one, hydraulic cylinder two, piston rod two, the plane of support is equipped with groove, the bottom surface middle part of support is equipped with through-hole, the bottom surface middle part of support is fixedly installed with hydraulic cylinder two, and piston rod two is connected on the upper transmission of hydraulic cylinder two, and the bottom surface four corners of support are fixedly connected with support leg, and the upper surface of support is fixedly installed with support column corresponding the four around grooves of support, the top surface of two adjacent support columns at support short shaft is connected with top plate, the top plate middle part of support is equipped with through-hole, and the top plate middle part of support is fixedly installed with hydraulic cylinder one, and piston rod one is connected on the upper transmission of hydraulic cylinder one, and clamping mechanism is arranged in the groove of support, and bending mechanism is arranged on piston rod one, the bending mechanism of the utility model can change lower mould, and the shape of upper mould can be adjusted by rotating carousel, and it is efficient and accurate, and production efficiency and quality are improved.

The invention provides a preparation method of a shell containing a multi-angle special-shaped pipe cavity, which comprises the following steps: combining and assembling a mold core and a plurality of block wax molds, so that the mold core is arranged in the multi-angle special-shaped pipe cavity defined by the plurality of block wax molds, partial areas of at least partial pipe bodies of the mold core are the same as the inner diameters of the multi-angle special-shaped pipe cavities in the corresponding positions so as to be precisely matched, and the rest partial areas of at least partial pipe bodies are arranged in the multi-angle special-shaped pipe cavities in a suspended mode to obtain a casting wax film; a surface layer shell and a back layer shell are prepared on the surface of a casting wax film in sequence, and then sectional continuous dewaxing roasting is adopted to prepare the shell. According to the invention, a multi-dimensional matching relationship is formed by the plurality of pipe bodies distributed at multiple angles of the mold core and the block wax mold, so that the accurate matching of the block wax mold and the mold core is ensured, and the dimensional accuracy of the inner cavity of a later casting can be ensured by utilizing the dimensional accuracy of the mold core.

The utility model provides an external tree trunk connector for quickly switching on a Christmas tree light power supply, which relates to the field of artificial Christmas trees, and comprises a male terminal and a female terminal which are inserted in a matching way, and the male terminal and the female terminal are respectively provided with a lower through hole and an upper through hole which are sleeved with a trunk upright post of a Christmas tree in a matching way; the male terminal and the female terminal are internally provided with a positioning convex block and a positioning groove which are matched for positioning, the male terminal is internally provided with a pair of electric plugs which are divided into a positive plug and a negative plug, the female terminal is internally provided with at least one pair of electric jacks, and each pair of electric jacks comprises a positive jack corresponding to the positive plug and a negative jack corresponding to the negative plug. Compared with the prior art, the external connector for the tree trunk has the advantages that the positioning blocks and the positioning grooves are arranged in the male terminal and the female terminal, so that the insertion angles of the male terminal and the female terminal are limited, the accurate matching and stable contact of the electric plug and the electric jack are ensured, the abrasion or damage is reduced, the operation is simple, and the disassembly and assembly are convenient.

The invention discloses a vehicle aided driving device and system based on image and radar monitoring, and relates to the technical field of vehicle aided driving, the vehicle aided driving device comprises a shell, the shell is installed at the front end of a vehicle, cameras are symmetrically arranged in the shell, the rear ends of the cameras are installed on a micro-motion structure, and the micro-motion structure is connected with the shell. The micro-motion structure is connected with the radar structure through a circuit, the radar structure is arranged in the middle of the shell, the inertia structure is arranged at the tail end of the radar structure, turning is sensed through the inertia swing rod, the camera is driven to move slightly, and the overlapped view actively shifts towards the inner side of the turning and is expanded. Equivalently, the system pays attention to the risk area in advance, the obstacle recognition distance can be increased, time is won for a braking or steering system, and the curve driving safety is improved.

This utility model discloses a pull-out engine cylinder head airtightness testing device, including a base with a testing station on the base. The testing station has sealing mechanisms on its sides and top to seal the through holes of the engine cylinder head. A movable plate for placing the engine cylinder head is slidably mounted on the base, and the movable plate has positioning pins to limit the movement of the engine cylinder head. An air pipe is connected to the sealing mechanisms above to perform air inflation testing on the engine cylinder head. This utility model uses a movable plate slidably mounted on the base. When the engine cylinder head needs to be removed or placed, the movable plate can be pulled out from the testing station before removal or placement, avoiding interference from the sealing mechanisms when removing or placing the cylinder head within the testing station. Therefore, it can effectively improve the airtightness testing efficiency of the engine cylinder head.

The application discloses a high-speed electric spindle and a use method, and belongs to the technical field of high-speed electric spindles. The high-speed electric spindle comprises a rotating assembly, a stationary assembly and a bearing arranged between the rotating assembly and the stationary assembly, and a gap is reserved between the rotating assembly and the stationary assembly. A tool knocking-off reverse buckling device, a cooling system and a lubricating system are arranged on the stationary assembly. The cooling system comprises cooling flow channels which are respectively arranged in a spindle shell and a spindle front bearing chamber. The spindle front bearing chamber is provided with a first circulating groove and a second circulating groove which are in communication with each other. The cooling flow channel of the spindle shell is in communication with the first circulating groove, the first circulating groove is in communication with the second circulating groove, and a throttling hollow top screw is arranged in the cooling flow channel of the spindle shell. An oil guiding channel is arranged in the spindle shell and is in communication with an annular lubricating groove of the spindle front bearing chamber. The high-speed electric spindle can reduce the tool knocking-off impact force borne by the bearing, has excellent heat dissipation and lubrication effects, is reliable in sealing, effectively stabilizes the spindle precision, prolongs the service life, and reduces operation and maintenance costs.

The invention relates to the technical field of cutting devices, in particular to a cold rolling cutting device for metal processing, which is characterized in that limiting chute rods are fixedly mounted at corners in a first U-shaped groove, driving rollers are arranged between the upper and lower limiting chute rods, and a moving table is fixedly mounted between the front and rear driving rollers; first cavity rods are arranged at the corners of the front edge and the rear edge of the upper end face of the moving table correspondingly, and first supporting sliding plates are arranged above the first cavity rods correspondingly. The problems that a supporting structure and a cutting structure of a traditional device are poor in connection, the traditional device cannot be matched with materials in various shapes, and cutting tools are unreasonable in arrangement are solved, the cutting tools in an annular array can conduct circumferential synchronous cutting on cold-rolled materials, accurate matching of material conveying and cutting is achieved in cooperation with a groove body and a limiting structure of a base, and the production efficiency is improved. The cutting precision and the operation efficiency of cold-rolled materials are effectively improved, and meanwhile the device is suitable for machining of cold-rolled metal materials in different shapes such as a round shape and a square shape.

The invention provides a preparation method of a casting containing a multi-dimensional pipe cavity, which comprises the following steps: combining and assembling a mold core and a plurality of block wax molds, so that the mold core is arranged in the multi-dimensional pipe cavity defined by the plurality of block wax molds, partial areas of at least partial pipe bodies of the mold core are suspended in the multi-dimensional pipe cavity, and the distance between the suspended part of the pipe body and the cavity wall of the multi-dimensional pipe cavity at the corresponding position is proportional to the wall thickness of the casting wax mold corresponding to the suspended part of the pipe body. According to the invention, a multi-dimensional matching relationship is formed by the plurality of pipe bodies distributed at multiple angles of the mold core and the block wax mold, so that the accurate matching of the block wax mold and the mold core is ensured, and the dimensional accuracy of the inner cavity of a later casting can be ensured by utilizing the dimensional accuracy of the mold core.

This invention belongs to the field of valve devices and discloses a handle valve anti-accidental contact device, comprising: a base fixed to the valve body of the handle valve; a limiting component that extends through the base and slides with the base; and a telescopic component disposed in a horizontal through hole in the base. The extensions have limiting holes that cooperate with the telescopic component to restrict the vertical movement of the limiting component relative to the base. The handle valve anti-accidental contact device of this invention achieves adjustable positioning of the limiting component through the cooperation of the telescopic component and the limiting holes. The precise cooperation between the extensions and the handle provides high limiting stability, effectively preventing accidental operation of the equipment by human error, significantly reducing human error, and ensuring the safe and stable operation of the unit.

The invention discloses a vagina medicine applying device for gynecological patients. The vagina medicine applying device comprises a pulling medicine applying device and a clamping pushing component. The invention belongs to the field of medical instruments, and particularly relates to a vagina medicine applying device for gynecological patients. The device serves as a gynecological vagina local drug delivery instrument, through optimization of a mechanical structure and integration of functions, technology upgrading and function innovation of a traditional vagina applicator are achieved, the industry current situation that a traditional gynecological drug application instrument is single in function and extensive in operation is broken through, triple improvement of the treatment effect, the use experience and the operation safety is achieved, and the device is worthy of popularization and application. A more efficient, safer and more humanized dosing tool is provided for gynecological clinical nursing, and the overall service quality of gynecological nursing can be improved.