128results about How to "Exquisite design" patented technology

The invention discloses a fresh-keeping production device and method for prefabricated vegetables, and relates to the technical field of prefabricated vegetable processing.The fresh-keeping production device comprises a main body, a conveying mechanism is arranged at the bottom end in the main body, a washing mechanism is arranged at the position, above the conveying mechanism, in the main body, and the conveying mechanism comprises a conveying belt and two sets of conveying rollers; the conveying belt is wound around the outer sides of the two sets of conveying rollers, and drainage holes are formed in the surface of the conveying belt. Through the cooperation of reverse operation and reciprocating brushing of the brushing mechanism, pressurized water flow of the flushing mechanism and the bubble effect of the bubble generation mechanism, vegetables are cleaned in multiple directions, various dirt and pesticide residues are effectively removed, the cleaning effect is remarkably improved, it is guaranteed that raw materials of the prefabricated vegetables are clean, preservation is facilitated, and the transmission mechanism reasonably distributes and converts power; and the nozzle of the flushing mechanism performs multi-angle flushing, and water recycling is realized through a backflow box and a filter plate, so that water is saved, secondary pollution of sludge is avoided, the cost is reduced, and the device is environment-friendly.

The invention provides a slope cropland fertilizing device and method, belongs to the technical field of fertilizing, and aims to solve the problem that a fertilizing device special for slope cropland is lacked in the prior art. Comprising a vehicle body, a chemical fertilizer box, a fertilizer distributor, a mixer, a fertilization angle adjusting assembly and a fertilization gun, a power device is arranged on the vehicle body, the vehicle body is driven by the power device to advance, and a handrail is fixedly arranged on the back of the vehicle body; the chemical fertilizer boxes are symmetrically and fixedly arranged on the two sides of the vehicle body, through holes are formed in the bottoms of the chemical fertilizer boxes, the through holes in the bottoms of the chemical fertilizer boxes are communicated with the fertilizer distributors, and the fertilizer distributors are used for quantitatively measuring chemical fertilizers; the bottom of the fertilizer distributor is communicated with the mixer; the fertilization angle adjusting assembly is arranged at the bottom of the vehicle body; the fertilization angle adjusting assembly is used for adjusting the fertilization angle; the fertilizing gun is mounted on the fertilizing angle adjusting assembly.

An automatic assembling and welding device and method for motor coil pins comprises a motor platform, a base, a feeding device, a delivery device, a welding device and a conveying device are arranged on the motor platform, a mounting table is rotationally arranged on the base, induction equipment is fixed above the mounting table, and a coil to be machined is connected outside the mounting table in a sleeving mode. The induction equipment is arranged above the to-be-processed coil and is used for inducing an operation point position of the to-be-processed coil; the feeding device is used for sleeving the to-be-processed coil on the mounting table or taking down the processed coil from the mounting table; the delivery device comprises a feeding groove and a delivery arm, and the delivery arm is used for installing pins in the feeding groove on a coil to be machined; the welding device is used for welding the pins and the to-be-processed coil; the conveying device is arranged between the base and the feeding device and used for conveying the coil to be machined to the position close to the mounting table. According to the invention, automatic assembling and welding of the motor coil pins can be realized.

The utility model relates to an assembly type composite floor slab. The assembly type composite floor slab comprises a shear wall tension brace combined formwork system, a multi-rod synchronous adjustment unit type independent supporting system, a post-cast strip wet connection hanging formwork system, a three-dimensional container type stacking frame, a height-adjustable composite floor slab and a composite floor slab overhanging I-steel local stiffness reinforcing and fixing system which are adopted for assembly type composite floor slab construction. By the adoption of a modular assembly mode, time and labor cost can be saved, engineering efficiency can be improved, construction is convenient and fast, the device has great significance in improving the construction period, reducing waste and promoting environment-friendly practice, and the device has wide application prospects.

The invention relates to the technical field of green belt trimming application, in particular to an automatic highway green belt trimming device which comprises a cross beam, a limiting assembly, a trimming assembly and a smashing assembly.The automatic highway green belt trimming device is exquisite in design, compact in size and capable of working under the condition of not occupying too much space; the cross beam serves as a main structural part, the supporting legs are vertically fixed to the bottom end of the cross beam, the advancing wheels are installed at the bottom ends of the supporting legs, and through the design, the device can move front and back on an expressway without occupying too much lane space, pruning work can be completed without arranging a roadblock, integration of a hub motor enables the advancing wheels to have the self-walking function, and the practicability is high. Therefore, the trimming device can move autonomously without additional traction or pushing force, the self-walking function greatly improves the efficiency of trimming operation, reduces the labor intensity of workers, and enables the trimming operation to be more flexible and quicker.

The invention discloses a hanging rail lifting inspection robot for unit equipment of a coal preparation plant, belongs to the technical field of inspection robots, and solves the problem that when a roller of a traditional inspection robot moves forwards, although the roller can press lubricating oil and play a certain lubricating role, the roller can not work normally due to non-uniform distribution of the lubricating oil and change of the movement direction of the roller when the roller returns. And the roller cannot press the lubricating oil again, so that the lubricating effect is poor. The lubricating head can reciprocate along with rotation of the bearing pulley, and the bearing pulley is coated with lubricating oil in real time. Meanwhile, the gathering rod makes contact with the hanging rail in a rotating mode, lubricating oil which is possibly diffused originally is gathered, a more concentrated lubricating area is formed, and the secondary lubricating effect is achieved. By means of the double-lubrication mechanism, the lubrication uniformity and continuity are improved, the lubrication effect is remarkably enhanced, and friction and abrasion between the idler wheels and the I-shaped hanging rail are reduced.

The invention relates to the technical field of book checking devices, in particular to an RFID-based automatic cruise checking instrument for a library. Comprising a translation module fixed to the top of a book cabinet and a turning module fixed to the translation module, and a detection and inventory module located beside the book cabinet is installed at the bottom of the turning module; according to the utility model, translation and 360-degree rotation are carried out according to the profile track, books on the bookcase are comprehensively checked, errors caused by manual checking are effectively avoided, and meanwhile, the checking efficiency is improved; according to the invention, a single-row gear and rack meshing conveying design is adopted for translation, a belt transmission design is adopted for rotation, double insurance of servo motor turn number counting and sensor counting is set for translation and rotation, the accuracy of inventory is ensured, and labels of books in a library are identified and counted based on the RFID technology, so that the inventory efficiency is improved. However, the cost of related RFID checking equipment is reduced to about thousand yuan, so that the system has a wide market prospect.

The invention discloses a double-end roller welding device, which relates to the technical field of welding and comprises a base, a guide groove I, a movable seat I, a spline shaft I, an adjustable clamping mechanism II, a spline shaft II, a screw rod II, a movable seat II, a welding gun fixing frame and the like. A first screw and a second screw are driven by a first motor, the distance between roller clamping mechanisms can be easily adjusted according to the length of a roller by means of ingenious cooperation of a movable seat and a guide groove, rollers of different sizes can be accurately matched, a stable foundation is provided for subsequent welding, and the universality and practicability of equipment are greatly improved; the adjustable clamping mechanism is ingenious in design, the third motor drives related parts to be in linkage, the self-centering chuck efficiently and stably clamps the welding pieces, the symmetrical structure of the adjustable clamping mechanism ensures clamping consistency and reliability of the welding pieces at the two ends of the double-end roller, welding errors caused by uneven clamping are effectively reduced, and the welding quality and the product precision are improved.

The utility model relates to low altitude economic flight data management storage technical field, and disclose a kind of safe for low altitude economic flight data management, including cabinet, password protection door and telescopic adjustable object plate, the sidewall of the cabinet is equipped with password protection door, the password protection door is rotatably connected with cabinet sidewall, and cabinet and password protection door inside are provided with multiple telescopic adjustable object plates of horizontal distribution, the utility model low altitude economic flight data management safe is cooperated by the internal structure of cabinet and multiple telescopic adjustable object plates, ensure that internal storage space can be freely adjusted, so that its space utilization rate is greatly improved, the telescopic structure of telescopic adjustable object plate simultaneously, the paper file on object plate is convenient to take and search, improve search rate.

The novel beacon vessel comprises a base and further comprises a water flow power generation device and a solar power generation device which are installed on the base, the base is arranged to be cylindrical, a notch is formed in the middle of the base, an impeller of the water flow power generation device overhangs in the notch to rotate, and the cylindrical base rotates in real time in the water flow direction. A solar power generation device is mounted on the top surface of the base at the rear part of the notch, and is provided with a foldable turnover mechanism, so that a solar panel of the solar power generation device is always positioned at the optimal sunlight receiving angle; multi-source power generation is achieved through the water flow power generation device and the solar power generation device, redundant electric energy is stored for standby application and delivery while power is supplied to the beacon light and other electric equipment on the device, real-time data acquisition is achieved through the camera and the light induction sensor, and the device is simple and compact in structure, reliable in operation, low in cost, convenient to install and high in practicability. Power generation is stable and efficiency is high.

The utility model discloses a full-automatic sectional material winding and unwinding device which comprises a machine frame and a rotating shaft arranged on the machine frame in a pivot mode, a supporting plate is arranged on the rotating shaft in a sleeved mode, the supporting plate is fixedly arranged on the machine frame, a sleeve is connected to the rotating shaft in a threaded mode, a pushing plate is arranged on the outer side of the sleeve, and the pushing plate is arranged on the outer side of the sleeve. The pushing plate can stretch out or retract under the driving of the driving assembly, so that the material tray is clamped or released; the rack is further provided with a pressing assembly, and at least part of the pressing assembly can be tightly attached to the material disc all the time. The material tray pushing device has the advantages that the design is ingenious, the pushing plate is driven by the driving assembly to stretch out or retract, so that the material tray is clamped, the operation is stable and reliable, the requirement for clamping material trays of different specifications can be met, and the material tray pushing device has wide applicability.

The utility model relates to a wall seat structure for installing and fixing a sunshade, which belongs to the technical field of the sunshade and comprises an arm seat frame connecting piece, a transition connecting block is arranged at the front end of the arm seat frame connecting piece, and a bolt through hole connected with the arm seat frame connecting piece through a screw and nut structure is arranged on the transition connecting block. The arm seat frame connecting piece comprises an inserting block, an adjusting connecting block integrated with the inserting block is arranged at the front end of the inserting block, and a U-shaped fixing groove penetrating through the bolt is formed in the adjusting connecting block. The device has the characteristics of simple structure, convenience in installation and high structural strength. The wall body fixing part and the sunshade arm connecting part are connected through the movable transition pivot, so that angle fine adjustment after installation is achieved, and different sunlight irradiation angles or storage requirements are met.

The utility model provides an electronic mechanical braking device for a drive-by-wire chassis, and belongs to the technical field of vehicle braking. The electronic mechanical braking device comprises a braking caliper body assembly, a braking transmission assembly, a driving motor connecting assembly and a driving motor. The brake caliper body is a core part of the brake caliper body assembly, an arc-shaped face and a limiting face are arranged in the brake caliper body, and a driving motor connector is arranged at the tail of the brake caliper body. The brake transmission assembly comprises a nut piston sealing cover, a nut piston and a ball screw. The nut piston is provided with an arc-shaped surface, a limiting surface and a sealing groove; the driving motor connecting assembly comprises a spline groove flange plate and a driving motor fixing frame. The electronic mechanical braking device adopts a caliper body integrated configuration scheme, and has the advantages of compact structure, smooth transmission, quick response, high bearing capacity and the like. Meanwhile, the electronic mechanical braking device can adapt to driving motors of different specifications by adjusting the driving motor fixing frame and the spline groove flange plate, and the application scene of the electronic mechanical braking device is expanded.

The present invention relates to the technical field of automobile structural design optimization methods, and specifically refers to a trunk lid bent tube hinge axis arrangement calculation optimization method. According to the rear modeling CAS surface, as well as known design parameters and set constraints, the trunk lid initial opening θ0 and the hinge axis initial coordinate f0 are set; a hinge optimization area is constructed, and within the hinge optimization area, the trunk lid initial opening θ0 and the hinge axis initial coordinate f0 are calculated based on the hinge span design requirements, human-machine goals, the safety gap of the hinge relative to the sealing strip movement, the safety gap requirements of the trunk lid and the rear windshield during the opening process, the assembly space distance between the hinge axis and the rear windshield, and the trunk lid closing force requirements to obtain the optimal solution for the hinge axis. The optimization method of the present invention is reasonably designed, with rich considerations, avoiding the risk of repeated modifications in the later stage, improving the efficiency of the hinge axis design and development, and has great promotion value.

The utility model discloses a roll core clamping and turning device which comprises a rack and a rotary table arranged on the rack, a group of containing grooves used for containing roll cores are formed in the outer circumferential face of the rotary table, and a clamping assembly used for clamping the roll cores is arranged above the rotary table. The clamping assembly is driven by an unlocking assembly arranged below the turntable to clamp or release the roll core; the rack is further provided with an overturning assembly used for driving the clamping assembly to overturn, and the overturning assembly, the unlocking assembly and the clamping assembly are driven by the same driving source. The full-automatic turnover device has the advantages that the design is exquisite, full-automatic turnover is achieved, manual operation is not needed in the whole process, the working intensity is greatly reduced, the working efficiency is improved, in addition, unified mechanical operation is achieved through the device, uniformity can be guaranteed to the maximum extent, and the yield is improved.

The invention provides a self-adaptive suspension load-reducing bearing system. The self-adaptive suspension load-reducing bearing system comprises a back frame unit, a transmission unit and a self-adaptive driving module, the self-adaptive driving module comprises a driving unit, a variable stiffness unit and a control unit which are positioned in the rack; the rack body is fixedly connected with a mover rack of the back frame unit, an external connection end fixedly connected with a gear of the transmission unit is arranged on the rack body, a load transmitted by the transmission unit is connected through the external connection end, and power provided by the driving unit is transmitted to the mover rack; the driving unit comprises a central shaft and a driving motor which are coaxial; a rigidity adjusting assembly in the variable rigidity unit changes the number of working turns of the coil spring according to an instruction of the control unit, and the load torque transmitted by the center shaft acts on the coil spring; the control unit controls the rigidity adjusting assembly and the driving motor according to the current of the driving motor and the rotating angle of the center shaft, power is provided for the mover rack to enable the mover rack to maintain the target position, meanwhile, self-adaptive adjustment on different loads is achieved, the adjusting range is wide, the weight is low, and energy consumption is low.

The utility model provides a visual inspection device with multiple reverse surfaces, which relates to the technical field of visual inspection and comprises a supporting table, a conveying belt is mounted in the supporting table, fixing frames are mounted at two ends of the upper surface of the supporting table respectively, and a plurality of image collectors are mounted on one sides, close to the conveying belt, of the fixing frames respectively. An auxiliary mechanism is installed in the middle of the upper surface of the supporting table. According to the utility model, through the auxiliary mechanism, the first motor is utilized to drive the connecting block and the clamping frame to rotate, multi-surface reverse rotation of the material can be realized, all surfaces of the material can be detected by matching with the image collector on the fixed frame, the area of a product possibly having quality problems is fully covered, the defect of single-surface detection is made up, and the detection efficiency is improved. The product quality is ensured to be comprehensively controlled, and the detection comprehensiveness is effectively improved.

The application discloses a kind of inductor full-automatic production device, including rack, the shell conveying assembly for conveying is equipped on the rack, along the direction of movement of the conveying assembly, the capacitor loading assembly for loading capacitor band is sequentially equipped on the rack, the resistance loading assembly for loading resistance band and the IC band loading assembly for loading IC band are sequentially equipped on the rack, the welding assembly for welding the capacitor band, resistance band and IC band on the shell is further equipped on the rack.The beneficial effects of the application mainly include:high degree of automation, realize full-automatic capacitor, resistance and IC band cutting bending forming and welding, without manual operation throughout, so as to improve processing efficiency when mass production, at the same time, the technical effects of reducing labor cost, processing cost and labor intensity can make enterprises effectively utilize human resources, and collection is convenient.

The invention discloses a closestool technology, and aims to provide a quick-release closestool cover which can only be detached by a worker and a detaching method of the quick-release closestool cover. According to the technical scheme, the quick-release closestool cover comprises a closestool cover body connected with a closestool through a hinge, and the hinge comprises at least one locking mechanism; the locking mechanism comprises a hinge piece, a steel column, a steel ball and a magnet capable of activating the mechanism; the hinge piece is installed on the toilet lid, the whole hinge piece is square, a cavity for containing the steel ball is formed in the hinge piece, and a channel communicated with the cavity and allowing the steel column to be inserted therein is further formed in the hinge piece; the whole steel column is T-shaped and comprises an insertion part and a limiting part, the insertion part is cylindrical, annular grooves are symmetrically formed in the insertion part, the insertion part can be inserted into the hinge piece along the channel of the hinge piece and makes contact with the steel balls in the cavity in the insertion process, and the steel balls are pushed away to allow the steel column to enter the cavity; the invention is applicable to the technical field of closestools.

An automatic counting, checking and collecting device comprises a supporting frame, a material distributing disc is fixed to the supporting frame, a rotating disc is arranged on the material distributing disc, a plurality of fan-shaped grooves with the same size are formed in the rotating disc, a plurality of containing holes used for containing products are formed in the fan-shaped grooves, the containing holes penetrate through the fan-shaped grooves, and the rotating disc is arranged on the supporting frame. A fan-shaped blanking hole corresponding to the fan-shaped groove is formed in the material distributing disc, a driving assembly for driving the rotating disc to rotate is arranged below the rotating disc, and a camera for scanning the number of products is further arranged above the rotating disc; the driving motor drives the rotating disc to improve the counting efficiency and accuracy, the counting scheme that the circular rotating disc tool is combined with the groove is matched with the camera for automatic scanning confirmation, the problems that manual counting is prone to fatigue and inattention are effectively solved, it is ensured that the counting result is accurate, and meanwhile the labor cost and the labor intensity can be reduced.

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 discloses an energy-saving and labor-saving low-temperature liquid vehicle filling device, which relates to the technical field of low-temperature liquid vehicle filling, and comprises a concrete buttress, a hanging column is rotatably connected onto the concrete buttress, a hanging beam is mounted at the top of the hanging column, a chain rope is arranged on the hanging beam, a counterweight iron bucket is fixedly mounted at one end of the chain rope, and the other end of the chain rope is fixedly connected with the counterweight iron bucket. And a lifting hook is fixedly mounted at the other end of the chain rope. According to the utility model, the stop bolt is taken out, the vacuum hose is lapped on the lifting hook, a worker holds and rotates the operating handle, so that the lifting column and the lifting beam are rotated to a proper angle position, stones, bricks and the like are arranged in the counterweight iron bucket for counteracting the weight of the vacuum hose, and meanwhile, the bottom of the counterweight iron bucket is provided with a small hole for draining rainwater. When an operator takes the vacuum hose to be in butt joint with a tank car interface, the operation is more convenient and labor-saving, and the operator is simple, convenient and labor-saving to operate during car filling, so that the number of operators can be reduced, and the labor cost is saved to a certain extent.

The utility model belongs to the technical field of steel processing, and particularly relates to a profile steel sample fixing clamp device. As a sizing clamp, the section steel sample sawing time can be shortened, and it can be ensured that the sawing size meets the requirement of a full-inspection sample. Comprising a profile steel fixing clamp device body, the profile steel fixing clamp device body comprises a horizontal fixing table, one end of the fixing table is fixedly connected with an L-shaped support, the other end of the fixing table is provided with a movable table capable of stretching out and moving relative to the fixing table, the height of the top face of the movable table is consistent with that of the top face of the fixing table, and the movable table and the fixing table jointly form a profile steel containing table; a plurality of sizing clamping grooves for inserting sizing plates are formed in the top surface of the fixed table; when the profile steel is placed on the profile steel placing table, the profile steel is kept horizontal, and one end of the profile steel abuts against the positioning ruler in the positioning clamping groove. A first rectangular boss is arranged at the bottom of the movable table, and a second rectangular boss is arranged at the bottom of the fixed table. A pressing piece is arranged at the top of the L-shaped support and used for pressing profile steel on the profile steel placing table.

A portable concrete test piece demolding device comprises a frame, an upper moving mechanism is installed on the top of the frame, a middle demolding mechanism is fixedly installed on the upper moving mechanism, a lower conveying mechanism is installed below the middle demolding mechanism, and the upper moving mechanism, the middle demolding mechanism and the lower conveying mechanism all communicate with a power source. The control system is further communicated with and controlled by the control system; the middle demolding mechanism is provided with a clamp, a distance measuring sensor and a gravity sensor are arranged on the clamp, the clamping range is flexibly adjusted according to the size of a pouring mold, whether demolding is completed or not is detected, a conveying belt below the clamp conveys a test piece needing demolding and a mold obtained after demolding, and the device is further provided with a sponge cushion layer and a rubber cushion layer. The container is used for containing a demoulded concrete test piece; the concrete test piece demolding device can rapidly and stably complete demolding of a concrete test piece, guarantees the integrity of the demolded test piece, reduces the workload of manual demolding, and meanwhile avoids damage to the test piece in the demolding process.

The invention discloses an electronic tag hanger full-automatic packaging technology which comprises an adhesive tape packaging and bundling technology and a carton packaging technology, the adhesive tape packaging and bundling technology is carried out based on an adhesive tape packaging and bundling system, the carton packaging technology is carried out based on a carton packaging system, and the adhesive tape packaging and bundling technology at least comprises the following steps that a1, materials are taken; a2, dismantling the battery; a3, packaging and bundling with an adhesive tape; the carton packaging process at least comprises the following steps: b1, blanking; b2, overturning is carried out; and b3, carton packaging. According to the packaging technology, automatic packaging work of the electronic tag hanging frame can be completed, labor input is small, production efficiency is high, in the automatic packaging process, the battery of the electronic tag hanging frame can be pulled out, the electronic tag hanging frame is not in a power-on state, a circuit structure is effectively protected, the adhesive tape winding function can be achieved, and production efficiency is improved. And the disassembled battery is fixed with the rack body of the electronic tag hanging rack, so that the battery is effectively prevented from falling off or shifting to cause abnormity, and the packaging process also has the advantage of high packaging quality.

The utility model relates to the field of storage drawers, in particular to a storage drawer with separators, which comprises two side plates, a front aluminum profile and a rear aluminum profile are respectively mounted at the front end and the rear end between the two side plates, and a bottom plate is mounted between the front aluminum profile and the side plates and between the rear aluminum profile and the side plates. Clamping supporting battens are fixed to the inner walls of the side plates through screws, two mounting plate assemblies are mounted between the two clamping supporting battens, and each mounting plate assembly comprises a profile plate and a hanging clamping piece fixed to the end of the profile plate; the storage drawer with the partition piece is hung in a notch in the hanging clamping piece through a U-shaped hanging clamping part at the end of the mounting plate assembly, the depth direction can be freely adjusted, the partition piece can rotate in a sliding groove of a rear aluminum profile and a sliding groove of a profile plate to adjust the left-right distance, then a small storage box and a large storage box are stacked, and therefore the storage drawer with the partition piece can be conveniently and rapidly stored. Therefore, an attractive and elegant storage and separation pattern is formed, and the product is simple in structure, reliable, attractive and capable of being flexibly adjusted.

The utility model provides a tracheal intubation device for rats and mice, which comprises an operating table, a base, a light source and a retention needle, the operating table is provided with a suspension rope for hooking incisor teeth of the rats and the mice, and the operating table and the base are rotatably connected through a rotary positioning component and are positioned after rotating in place; the light source comprises an optical fiber, and an optical fiber connecting part is sleeved on the optical fiber. The retention needle comprises a needle tube and a retention needle connecting part connected with the needle tube, and the optical fiber connecting part is detachably matched with the retention needle connecting part; the tracheal intubation device for the rats and the mice is simple in structure, exquisite in design, convenient to use, wide in application range and high in success rate, the tracheal intubation difficulty of the rats and the mice is reduced, meanwhile, damage to the rats and the mice caused by blind tracheal intubation is avoided, and the experiment efficiency is greatly improved.

The utility model discloses an external solenoid valve for an adjustable damping shock absorber, which comprises a valve body, an accommodating cavity is arranged in the valve body, and a main valve core is arranged in the accommodating cavity; a clamping groove is formed in the inner side of the main valve element, a spiral spring is arranged in the clamping groove, the spiral spring abuts against the main valve element, and the other end of the spiral spring abuts against the valve body. An ejector pin is arranged on the valve body in a sliding manner; a valve seat is fixedly arranged at the end, away from the electromagnetic assembly, of the valve body, a valve port is formed in the valve seat, a valve hole is formed in the outer circumferential face of the valve body, and a runner between the valve port and the valve hole can be separated by a main valve element. The self-adaptive damping electromagnetic valve has the advantages of being exquisite in design, capable of achieving self-adaptive damping of fluid, simple and convenient to operate, stable and reliable. And meanwhile, the cylindrical end I and the cylindrical end II guide the movement of the ejector pin, and the convex end is arranged to limit the movement position of the ejector pin, so that the movement accuracy is ensured, and the accuracy is greatly improved.

The utility model discloses an accurate liquid preparation system suitable for semiconductors, which comprises a liquid weighing barrel and a liquid supplementing barrel, a weighing pipe for weighing the liquid level height is arranged in the liquid weighing barrel, and a communication pipeline communicated with the liquid supplementing barrel is arranged on the weighing pipe; a liquid supplementing pipeline communicated with the liquid supplementing barrel and a main pipeline communicated with an external treatment tank body are arranged on the liquid weighing barrel; a measuring pipe for measuring the height of the liquid level is arranged in the liquid supplementing barrel, a liquid return pipeline communicated with the liquid storage tank is arranged on the measuring pipe, and a branch pipeline communicated with the external treatment tank body is further arranged in the liquid supplementing barrel. The liquid supplementing device has the main beneficial effects that when the concentration or the amount of liquid in the external treatment tank body is reduced, the liquid needs to be supplemented, at the moment, the liquid can be supplemented to the external treatment tank body through the branch pipeline, the liquid supplementing mode is stable and reliable, the amount of the supplemented liquid can be specifically controlled, the stability of the concentration and the amount of the liquid is ensured, the production efficiency is improved, and the production cost is reduced. And the method has relatively wide applicability.