106results about How to "Effectively closed" patented technology

The invention discloses an adjustable tension device for high-speed wire stranding, and relates to the technical field of wire stranding devices.The adjustable tension device comprises an operation table, an adjusting frame is slidably connected to the operation table, a wire stranding disc is installed on the adjusting frame, a dust collector is arranged on one side of the wire stranding disc, and the dust collector is arranged below a thread limiting sliding barrel and a rubber extrusion shaft; the driving fluted disc component is driven by the motor to rotate, the threaded limiting sliding cylinder component is further driven to move by means of the precise meshing effect of the driving fluted disc and the meshing disc, and the trapezoidal extrusion block component is driven to apply pressure to the sliding shaft. By means of the series of mechanical actions, accurate adjustment of the rubber extrusion shaft component is ingeniously achieved, and therefore the contact distance between the rubber extrusion shaft and the surface of the wire harness rod is changed. The adjustment of the contact distance is directly related to the tension generated when the wire harness rod slides on the rubber extrusion shaft, and more flexible and accurate tension control options are provided for users.

The invention relates to the technical field of carbon dioxide monitoring, in particular to a cell incubator carbon dioxide concentration monitoring system which comprises an incubator shell, a transparent packaging plate is installed on one side of the incubator shell, a connecting base plate is fixedly installed on the other side of the incubator shell, and a square communicating frame is fixedly connected to the connecting base plate in an inserted mode. Placing plates are uniformly mounted on the inner wall of the incubator shell, transverse mounting grooves are formed in the inner wall of the top end of the incubator shell and the bottoms of the placing plates, self-resetting sealing assemblies are mounted in the transverse mounting grooves, and one ends of the self-resetting sealing assemblies are inserted into the square communicating frames; the carbon dioxide concentration change in the cell culture process can be comprehensively and accurately mastered, the use flexibility can be improved, the error risk caused by a single-type measuring instrument is reduced, meanwhile, the incubator shell can be effectively closed, and the cell culture efficiency is improved. It is ensured that the cell culture stably grows in the environment without being interfered by the external environment in the monitoring process.

According to the novel mandibular protraction appliance and the digitization-based manufacturing method thereof, a vestibular shield is arranged on the lip side of the lower anterior teeth of the mandibular protraction appliance, and the appliance can effectively seal the oral cavity and improve the dry mouth symptom possibly occurring when a traditional mandibular protraction appliance is worn; the common mouth breathing problem of patients with obstructive sleep apnea hypopnea syndrome (OSAHS) is solved, and the limitation of lip inclination of lower anterior teeth caused by a traditional mandibular advancement appliance is reduced more remarkably.

The utility model discloses a novel porous precast slab reinforcing assembly which comprises a plurality of first reinforcing strips, second reinforcing strips and third reinforcing strips (41), the first reinforcing strips are distributed in parallel to the stress direction of precast slabs (63) and located at the splicing seams of the precast slabs (63), and the third reinforcing strips (41) are distributed in parallel to the stress direction of the precast slabs (63). The second reinforcing strips are distributed in the direction perpendicular to the stress direction of the prefabricated plate (63), the second reinforcing strips and the first reinforcing strips are arranged at intervals, and the third reinforcing strips (41) wrap the side edge of the non-stress side of the prefabricated plate (63). The floor has the advantages of being good in floor integrality and capable of preventing floor leakage.

The invention discloses a drug-loaded nanogel modified bioprosthetic valve as well as a preparation method and application thereof, and belongs to the technical field of preparation of medical materials and medical instruments. The preparation method comprises the following steps: firstly, synthesizing an active oxygen response monomer by taking thioketal-containing methacrylate and methylprednisone hemisuccinate as raw materials, then synthesizing active oxygen response type drug-loaded nanogel, and then introducing the active oxygen response type drug-loaded nanogel to the surface of the bioprosthetic valve through chemical bonding; in a pathological environment with relatively high active oxygen concentration, a thioketal group in the monomer is decomposed, and methylprednisone hemisuccinate is released at a fixed point, so that inflammatory cell infiltration is reduced, and the anti-inflammatory performance of the bioprosthetic valve is improved; in addition, the nanogel contains a large number of hydrophilic groups, a hydration layer is formed on the surface of the bioprosthetic valve, and the risk of thrombus and blood coagulation can be effectively reduced; the prepared bioprosthetic valve has excellent anti-inflammatory, anti-coagulation and anti-calcification capabilities and stability.

The invention discloses a low-absorption high-emission thermal control coating resistant to an aerodynamic thermal environment and a preparation method of the low-absorption high-emission thermal control coating. The coating comprises a base material and a coating body. The coating is of a bottom surface layer structure, an organic silicon resin functional group modified phenyl methyl silicon resin component A and an organic silicon resin functional group modified phenyl methyl silicon resin component B serve as a binding agent, a resin component A comprises basic resin and a crosslinking catalyst, and a resin component B comprises basic resin and a crosslinking agent; the bottom surface layer structure comprises a bottom layer and a surface layer; mixed powder of boron nitride, aluminum oxide and hollow glass microspheres is used as filler in the bottom layer; zinc titanate powder and aluminum oxide whiskers are used as fillers in the surface layer. Aiming at various harsh working conditions such as maintaining a heat balance state required by the spacecraft in complex environments such as raining, high-temperature and high-speed pneumatic scouring, high-low temperature alternation and space radiation, the operation stability of a cabin of the spacecraft after experiencing various environments is improved, and the in-orbit space application environment requirements of the subsequent spacecraft are met.

The utility model discloses a strength detection device for an elevator hoist rope, and belongs to the technical field of elevator safety. A tension sensor is fixed to one side of the upper end face of the base and fixedly connected with a first clamping mechanism, a first sliding groove is formed in the upper end face of the base, the first clamping mechanism is slidably connected with the first sliding groove, a second clamping mechanism is fixed to the other side of the upper end face of the base and corresponds to the first clamping mechanism, and the side wall of the base is hinged to one end of a concave safety protection net. A fixing buckle is arranged at the other end of the concave safety protection net, a clamping groove used in cooperation with the fixing buckle is formed in the upper end face of the base, and the fixing buckle is connected with the clamping groove in a clamped mode. The device for detecting the strength of the hoisting rope of the elevator has remarkable beneficial effects in the aspects of improving the detection safety, the operation convenience, the detection accuracy, the adaptability and the like, and is of great significance in guaranteeing the operation safety of the elevator and improving the detection efficiency.

The utility model relates to a motorcycle balance rod which comprises a cylinder body, a piston rod and a one-way valve, the piston rod is arranged in the cylinder body to do axial movement, the one-way valve is arranged in the center of the piston rod and arranged in the cylinder body, and end covers are arranged at the positions, located at an opening of the cylinder body, of the two ends of the piston rod. The adjusting hand wheel is rotatably connected with the cylinder body, the adjusting hand wheel is provided with an abutting part, an abutting groove abutting against the abutting part is formed in the end cover, the adjusting hand wheel is provided with an adjusting part located at the bottom end of the abutting part, the adjusting part is arranged in the end cover, the adjusting part is provided with adjusting grooves from deep to shallow, the adjusting grooves are communicated with the interior of the cylinder body, and the end cover is provided with through holes communicated with the adjusting grooves. By arranging the adjusting hand wheel and the adjusting groove, the damping force and controllability of the motorcycle are improved, jumping of the front wheel during high-speed driving or emergency braking can be reduced by reasonably adjusting the damping force, and better tire grounding performance is kept.

The utility model discloses a cable irradiation fixing device in cable production, which comprises a support base, the output end of a second servo motor is provided with a screw rod, the screw rod is inserted in the inner wall of a chute box, the outer wall of the chute box is sleeved with a screw rod sleeve block, one side of the screw rod sleeve block is fixedly connected with a draw bar, and the draw bar is fixedly connected with the support base. The lower end of the traction rod is fixedly connected with a traction block. The fixing device for cable irradiation in cable production can drive the cable coiling shaft and the collecting coiling shaft to electrically rotate through the supporting frame, a cable body can be conveniently and stably pulled, wrapping irradiation can be carried out through the irradiation box, the device is more uniform, and the production efficiency is improved. The cable main body can be uniformly wound through left-right movement of a traction block and a traction rod on a second servo motor, a lead screw sleeve block and a lead screw, the collection efficiency is better, the cable main body can be clamped and rolled in the irradiation box through a movable clamping block, a connecting spring and a rolling shaft, the two sides can be effectively sealed, the irradiation effect is enhanced, and the use is more efficient.

A pulse feeding valve comprises a valve body, a valve element assembly and an air cylinder assembly. The valve body is of a sealing structure with openings in the upper end and the lower end, and a valve element assembly is arranged in the opening in the lower end of the valve body and is a telescopic component. An air passage is arranged at the lower end opening of the valve body; the air channel is connected to the bottom of the valve element assembly. The cylinder assembly is arranged on the outer side wall of the valve body; when the valve element assembly moves upwards, the opening in the lower end of the valve body is a discharging opening. The valve element of the pulse feeding valve moves up and down for feeding, material blockage caused by poor flowability is avoided, meanwhile, materials are fed in a sealed space, the materials are not exposed in air, the materials are prevented from being lost and polluted, the flowability of the materials is guaranteed during feeding, and the materials are convenient to clean. The feeding valve is reliable in structure and high in sealing performance in the feeding process, the dustproof effect of the feeding port is good, materials cannot leak in the charging process, and waste and loss of the materials are reduced.

The utility model relates to the technical field of civil engineering experimental equipment, and discloses a cement mortar stirrer which comprises a fixing plate, a threaded rod is rotatably connected to the interior of the fixing plate, a threaded block is in threaded connection to the exterior of the threaded rod, a limiting block is fixedly connected to the exterior of the threaded block, and a limiting rod is arranged on the exterior of the threaded rod. The limiting rod is fixedly connected to the interior of the fixing plate, a rotating rod is fixedly connected to the upper portion of the threaded rod, a fixing disc is fixedly connected to the upper portion of the rotating rod, a rotating handle is fixedly connected to the upper portion of the fixing disc, a fixing base is fixedly connected to the front portion of the threaded block, and a motor is arranged in the fixing base. And the output end of the motor is fixedly connected with stirring blades. According to the stirring pot, the opening of the stirring pot can be effectively sealed, external objects are prevented from entering the stirring pot, meanwhile, the possibility that materials are splashed out or splashed can be reduced, and cleanliness and safety of the operation environment are guaranteed.

This utility model discloses a self-locking hydraulic pipe joint, including a male joint and a female joint. The male joint has a pin, and a sealing sleeve and a spring are slidably fitted onto the surface of the pin. Under the action of the spring, the sealing sleeve can cover the connecting hole on the pin. A locking ring groove is provided on the outer wall of the pin. The female joint has an axially sliding valve core inside, which is connected to the spring and used to close the inner flow channel. The female joint also has multiple radially arranged locking pins, which cooperate with the locking ring groove of the pin to achieve mechanical locking. During the insertion process, the pin pushes the valve core back and compresses the spring, while the sealing sleeve backs to connect the connecting hole with the inner flow channel for flow. The locking pins automatically spring into the locking ring groove to achieve self-locking connection. The locking pins are made of ferromagnetic material and can be quickly unlocked by magnetic attraction from an external magnetic ring. This utility model has a compact structure, automatic sealing, self-locking, and quick unlocking functions, is easy to operate, and is suitable for hydraulic systems with high sealing and high reliability requirements.

The utility model discloses a mounting structure of an electrochemical sensor signal processing module, which comprises a main body assembly and a signal processing module, the fixing assembly comprises a fixing block, a mounting groove, a movable shaft and a movable plate; the fixed block is mounted on one side of the upper surface of the circuit board, the mounting groove is formed in the upper end of the outer surface of the fixed block, the movable shaft penetrates through one side of the outer surface of the mounting groove, and the movable plate penetrates through the middle of the outer surface of the movable shaft. According to the utility model, the sensor is fixed on the circuit board, tight contact between the sensor and the circuit board is ensured, better mechanical stability and reliability of electrical connection are provided, interfaces which do not need to be used can be closed, the interfaces are effectively sealed, dust, moisture and other impurities are prevented from invading, and the service life of the sensor is prolonged. Therefore, the fault occurrence probability is reduced, and the service life of the interface is prolonged.

This utility model discloses a user-friendly food processing machine, comprising a main unit with a knob assembly, the knob assembly including a knob bracket, which is disposed at a mounting hole and fixed to the inner wall of the machine housing; a control board, mounted on the knob bracket, with buttons and an encoder surrounding the buttons on the side facing the mounting hole; a display module, including a button bracket, a display board, a display bracket, and a display panel arranged sequentially from the inside out, the button bracket sliding axially to trigger the buttons, the display board electrically connected to the control board and having a display unit on the outward-facing side, the display bracket fitting against the outer side of the display board, the display bracket having a light-transmitting groove corresponding to the display unit, and the display panel fitting against the outer side of the display bracket to block the light-transmitting groove; and a knob, sleeved on the outer periphery of the display module and connected to the encoder to operate the encoder. The display module is directly disposed within the knob to display the corresponding functions, facilitating user observation and operation.

The utility model relates to the technical field of flue gas treatment equipment, in particular to an antimony ore smelting flue gas water-cooling collecting bin which comprises a side wall plate and a bottom wall plate, horizontal smoke pipes are installed on the inner side of the side wall plate and the inner side of the bottom wall plate, vertical smoke pipes are connected to the tops of the horizontal smoke pipes, and a water-cooling groove is formed between the side wall plate and the bottom wall plate. A grid plate is installed on the top of the water cooling tank, and a cover plate is arranged on the upper portion of the grid plate. According to the antimony ore smelting flue gas water-cooling collecting bin, by arranging the cover plate, the top of the water-cooling groove is effectively sealed, and therefore potential safety hazards existing in a traditional open type design are eliminated. By means of the improvement, operators are prevented from accidentally falling into or making contact with hot smoke, external impurities are prevented from entering the water cooling tank, and stable operation of the whole system is guaranteed. The optimization of the internal structure of the collecting bin also improves the flue gas cooling and substance precipitation efficiency. Due to the arrangement of the horizontal smoke pipes and the vertical smoke pipes, the smoke can uniformly and efficiently pass through the water cooling tank.

The invention discloses a turn-milling composite numerical control machine tool with a slant bed body capable of discharging automatically, and belongs to the technical field of machine tool discharging. The turn-milling composite numerical control machine tool comprises a discharging box, a vibration frame is arranged on the inner wall of the discharging box, an upper-layer screen and a lower-layer screen are arranged on the inner wall of the vibration frame, a movable shelf is arranged on the outer wall of one side of the discharging box, and a liquid storage tank is arranged at the bottom of the discharging box; a discharging opening is formed in the other side of the discharging box in a penetrating mode, and a residue filtering roller is arranged at the bottom of the discharging opening; according to the turning and milling combined numerical control machine tool, the machining environment of the turning and milling combined numerical control machine tool is optimized, efficient screening, cleaning, recycling and extrusion forming of the metal chippings are achieved, and the machining efficiency, the environmental protection property and the resource utilization rate are remarkably improved.

The utility model provides a waterproof vent assembly and underwater robot belong to underwater robot technical field, include: install shell, be provided with installation cavity in, gas inlet channel is provided on install shell and is communicated with installation cavity arrangement, and gas inlet channel is provided with waterproof air -permeable part in, waterproof air -permeable part can change position or take place flexible deformation relative to gas inlet channel, butt joint department, it is provided in installation cavity, and butt joint department can be along the center axis direction of gas inlet channel linear movement, install shell is provided with the first water inlet hole of through and installation cavity is linked together, push elasticity spare, it is provided in gas inlet channel, and one end of push elasticity spare is used for underwater robot connection, the other end of push elasticity spare and waterproof air -permeable part are opposite, the advantage is when equipment is in underwater, realize the effective closure of gas inlet channel, once equipment returns to the water surface or is in low water pressure environment, make gas inlet channel re -open, restore the aeration state.

The invention relates to a filter barrel pressing device for vegetable processing. The device comprises components such as a pressing mechanism, a filter barrel, a barrel seat and a discharge mechanism. The filter barrel adopts a hollow structure that passes through from top to bottom and a detachable petal, and has good air permeability and internal space. The filter barrel is automatically moved between different workstations by a transfer mechanism. The design concept of the filter barrel and the barrel seat is to use the pressure generated by the pressing mechanism to mainly act on the lower part of the filter barrel, and the barrel seat plays a supporting role to digest the pressure, thereby realizing effective pressure control. The lower part of the filter barrel can be opened, and the unloading mechanism can be automatically lifted to realize rapid unloading; it can be automatically closed after being lowered. This design realizes stability when subjected to greater pressure and efficient material processing. Compared with the prior art, the present invention makes improvements in the air permeability design of the filter barrel, the structural design of the pressing container, and the automatic operation of the filter barrel, thereby realizing the improvement of the working efficiency and filtering effect of the pressing device.

The utility model discloses an engineering building dustproof device, including support rod, dust collection bucket, plugging control mechanism, quick clamping mechanism and clamping auxiliary mechanism, the plugging control mechanism includes adapter tube, rotating rod, movable sealing plate and rotating handle, the quick clamping mechanism includes clamping tube, clamping rod, clamping groove, locking spring, locking rod and slope block, and the clamping rod is connected with the movable sealing plate and the rotating handle. The clamping auxiliary mechanism comprises a rotating pipe, a moving groove, a transverse rod, a ball, a reset spring and a moving plate, an operator can conveniently control opening and closing of a movable sealing plate through the arrangement of a rotating handle, so that airflow of the dust collection hopper is controlled, the worker is allowed to rapidly install or replace the dust collection hopper through the rapid clamping design of a clamping rod and a clamping pipe, and the working efficiency is improved. And due to the arrangement of the reset spring, the moving plate can automatically reset after the clamping rod is released, and the next clamping operation is facilitated.

The utility model discloses a high -strength quick installation grain baffle relates to grain baffle field, to solve the grain storage in the prior art only through ventilation system can not carry out effective ventilation to the grain of grain baffle inside accumulation, and further make's grain is easy to be because of damp or high temperature and have the metamorphic problem. The middle layer grain baffle's middle part is provided with the rectangular vent, the rear end surface of middle layer grain baffle and in rectangular vent rear end is connected with the support frame, the support frame middle part is fixedly connected with the blocking ventilation net, the front end surface of middle layer grain baffle and in rectangular vent front end fixedly connected with the rectangular connecting frame, the rectangular connecting frame front end is connected with the air suction fan, through setting up the rectangular vent of middle layer grain baffle, blocking ventilation net and air suction fan, realized the initiative ventilation function to the grain of grain baffle inside accumulation, effectively solved the grain damp metamorphic problem that traditional grain baffle ventilation is insufficient caused.

A cabinet door rebounder with adjustable rebounding strength, comprising a door buckle mounted on the cabinet door and a rebounder main machine mounted in the cabinet body, the rebounder main machine comprising a shell, a slide channel is hollowly arranged in the shell, the slide channel penetrates through the front end face, a sliding block is slidingly mounted in the slide channel, a first clamp body and a second clamp body are hingedly mounted on the sliding block, clamps are arranged at the front ends of the first clamp body and the second clamp body, guide columns are arranged at the tail portions of the first clamp body and the second clamp body, the first clamp body or the second clamp body is driven to swing through the guide columns, and then the action of clamping and releasing the lock column is generated. The beneficial effects of the present application are that the rebounding strength of the rebounder can be adjusted according to the needs. This allows users to make personalized settings for cabinet doors of different weights and sizes, ensuring that the rebounder provides the appropriate strength, which can effectively close the door body and avoid damage or noise caused by excessive strength.

The utility model discloses a steady type internet access safety lock, relates to internet access safety technical field, including lock portion and key, the lock portion includes the fixed mount that is used for embedding in the computer internet access, the fixed mount is hollow frame-shaped setting, the fixed mount is connected with the elastic clamping tongue, the top side of the elastic clamping tongue is provided with the clamping protrusion, the top side of the elastic clamping tongue is connected with the key, the key is connected with the key, and the key is connected with the key. A key clamping hole corresponding to the elastic clamping tongue is formed in the front side of the fixing frame in a penetrating mode. The key comprises a control part and an unlocking part which is connected to the control part and can penetrate through the key clamping hole to be matched with the elastic clamping tongue. A guide column corresponding to the key clamping hole is integrally formed on the inner side surface of the fixing frame, the guide column is of a columnar structure, and the extending direction of the guide column is consistent with the axial direction of the key clamping hole so that a channel used for guiding the unlocking part can be formed in the extending direction of the guide column. The guide column provides accurate guidance for insertion of the key, so that damage to the lock is reduced, and the unlocking process is ensured to be carried out smoothly.

The utility model relates to the technical field of bridge flood fighting, in particular to a water conservancy bridge flood fighting device which comprises a bridge plate, a plurality of supporting piles are fixedly connected to the bottom face of the bridge plate, buffering assemblies are rotationally connected to the outer walls of the supporting piles, and each buffering assembly comprises a connecting sleeve. The buffering device has the advantages that gaps among the buffering plates can be sealed through the corrugated telescopic plates, gaps between the tops and the bottoms of the buffering plates can be sealed through the annular corrugated telescopic plates, meanwhile, the corrugated telescopic plates and the annular corrugated telescopic plates can stretch out and draw back along with contraction of the buffering plates, springback buffering is not affected, and the buffering effect is good. Meanwhile, gaps can be effectively sealed, impurities and the like in flood are prevented from entering, the buffer plates can be freely retreated and rebounded, meanwhile, through linkage of a connecting plate, a plurality of connecting rods and two sliding ring plates, buffer springs on other buffer plates can share impact at the same time when any buffer plate is impacted, and the service life of the buffer plates is prolonged. The buffering effect is improved.

The rainproof shutter assembly comprises a shutter frame and a plurality of obliquely-arranged shutters in the shutter frame, each shutter comprises a first guide plate and a second guide plate bent upwards from the bottom of the first guide plate, and a drainage ditch used for draining rainwater is formed between the second guide plate and the first guide plate; a drainage net is arranged between every two adjacent shutters, the horizontal projection of the first guide plate of one shutter covers the horizontal projection of the second guide plate of the adjacent shutter on the inclined side, the shutters comprise an open state and a closed state, a ventilation path of the shutter frame is formed between the shutters in the open state, and the shutters rotate in the closed state. Wherein the first guide plate of one shutter is attached to the second guide plate of the adjacent shutter on the inclined side, and the ventilation path of the shutter frame is closed. By designing the shutter structure with the drainage ditch, the drainage net and the balance weight piece, rainwater can be prevented from entering underground space while effective ventilation is guaranteed.

The utility model provides an outdoor shooting lamp. The outdoor shooting lamp comprises a shell, a light-emitting mechanism and a heat dissipation piece. The light-emitting mechanism comprises a light-emitting assembly and a protective cover arranged on the shell, the protective cover and the shell define a containing cavity, and the light-emitting assembly is arranged in the containing cavity; the heat dissipation piece is arranged in the containing cavity, located on the side, away from the soft light cover, of the light emitting assembly and used for heat dissipation. Wherein one side of the shell sinks inwards to form an expansion groove, the outdoor lamp further comprises an end cover, and the end cover completely extends into the expansion groove, is connected with the expansion groove in a clamped mode and is used for closing or opening the expansion groove. According to the outdoor shooting lamp, a standardized interface is provided for a user through the arrangement of the expansion slot, and different accessories can be rapidly added to the outdoor shooting lamp; the pluggable design of the end cover enables the expansion slot to be conveniently closed or opened according to actual requirements, the expansion slot can be effectively closed when the expansion slot is not used through the design of the end cover connected in a clamping mode, and invasion and damage of external dust, rainwater and other environmental factors to the expansion interface are avoided.

The utility model provides a kind of cold slag machine and boiler equipment component, the purpose is to solve the technical problems that dust particles in the material cavity of existing disc type cold slag machine are easy to escape.This cold slag machine includes water chamber, sealing mechanism and push mechanism;Water chamber is annular, and multiple are arranged along vertical direction, and gap constituting material cavity is left between two adjacent water chambers;Water chamber is provided with discharge channel communicating its upper and lower surfaces;Sealing mechanism is composed of two annular pieces;Sealing mechanism is provided with four groups, respectively located the upper and lower surfaces of water chamber, and corresponding to the inner and outer ring walls of water chamber;Push mechanism is provided with multiple, and corresponds to material cavity one by one;Push mechanism includes inner ring and outer ring, and the upper and lower sections of inner ring and outer ring are located between the two annular pieces of upper and lower sealing mechanism respectively;Multiple radial extension scraping plates are evenly arranged between inner ring and outer ring.This cold slag machine effectively closes the material cavity between water chamber, thereby avoiding the escape of dust particles in material cavity.

The utility model provides a kiln burner, relates to the technical field of sanitary porcelain, aims to solve the problem that most burners cannot effectively adjust flame cores of flames when spraying the flames, and comprises a main body structure, a limiting mechanism and a connecting structure are fixedly connected into the main body structure, a sealing structure is movably connected to the connecting structure, the sealing structure is movably connected with the main body structure at the same time, and an adjusting mechanism is movably connected into the main body structure at the same time and comprises a limiting block, a guide rod A, a fixing plate, a gear B and a rack frame B; the limiting blocks are slidably connected with guide rods A correspondingly, the guide rods A are fixedly connected to the fixing plate correspondingly, rack frames B are fixedly connected to the bottoms of the limiting blocks correspondingly, and the rack frames B are meshed with gears B. When the connecting shaft rotates, the limiting blocks can be carried to ascend and descend; the hole diameter in the guide plate can be effectively adjusted, and the flame core after the flame is ejected is adjusted.

The invention provides a rare cell capture reagent combination and a capture method thereof. The reagent combination comprises a substrate, a capture antibody, a confining liquid, an incubation buffer solution and magnetic beads, the substrate is a compound as shown in a formula (I) and a derivative thereof; the capture antibody comprises but is not limited to one or more of an anti-CK antibody, an anti-EpCAM antibody, an anti-PD-L1 antibody, an anti-HER2 antibody, an anti-TROP2 antibody, an anti-c-MET antibody, an anti-Claudin18.2 antibody, an anti-EGFR antibody, an anti-MUC1 antibody, an anti-HER3 antibody, an anti-CD31 antibody, an anti-CD44 antibody and the like; the capture antibody is an oxidoreductase labeled antibody; and the magnetic beads are avidin labeled magnetic beads. The reagent combination and the capturing method can be widely used for capturing and separating rare cells with low expression of specific antigens. Compared with a traditional secondary antibody capturing method, the method disclosed by the invention is higher in capturing efficiency and higher in capturing sensitivity, and meanwhile, the specificity is not influenced.

The invention relates to the technical field of Micro OLED screen body cleaning, in particular to a Micro OLED screen body cleaning device which comprises a rack, a mechanical arm and a cleaning unit, the mechanical arm and the cleaning unit are arranged on the rack, the mechanical arm is used for carrying a chip to be cleaned to the cleaning unit, the cleaning unit comprises a cleaning tank and a cleaning table arranged in the cleaning tank, and a fixing device for fixing the chip is arranged on the cleaning table. The fixing device comprises a fixing piece made of rubber, the edge of the fixing piece is fixed to the cleaning table, a fixing blind hole matched with the chip in size is formed in the middle of the face, away from the cleaning table, of the fixing piece, an iron piece is arranged at the position, corresponding to the fixing blind hole, of the other face of the fixing piece, and an electromagnet is installed on an end effector of the mechanical arm. According to the invention, the manipulator is allowed to quickly and accurately position and fix the chip in the fixed blind hole in the cleaning table under the assistance of magnetic force, meanwhile, cracks around the chip are ensured to be effectively sealed, impurities are prevented from invading in the cleaning process, and the cleaning quality of the chip is effectively improved.