49results about How to "Reduce operating procedures" patented technology

A new structure panel lamp, including section frame, diffusion plate, bottom plate and light emitting lamp strip. The section frame is provided with the first table part and the second table part which are arranged at intervals; further including the cross-over clamp, the first end of the cross-over clamp is kept fixed by the joint action of the bottom plate and the second table part, the tail end of the cross-over clamp abuts against the diffusion plate and makes the diffusion plate and the first table part form fixed. The utility model can realize the internal space of the edge of the panel lamp, and realizes the planarization of the bottom plate, reduces its processing complexity.

The utility model provides a selfie stick, a shooting device and a shooting system, and is applied to the technical field of selfie sticks, the provided selfie stick is used for being connected with the shooting device, and the selfie stick is provided with a passive sensing assembly; wherein the passive sensing assembly is used for triggering the shooting device to form a sensing signal when the selfie stick is in different forms, and controlling the shooting device to be in a working state or a non-working state through the sensing signal. Therefore, when the shooting device on the selfie stick is controlled to work, the working state of the shooting device can be quickly switched only by changing the form of the selfie stick, compared with a scheme of switching on and off the shooting device on the selfie stick in the related technology, the step of manually controlling a key of the selfie stick is omitted, the operation process is reduced, the time is saved, and the efficiency is improved. Therefore, the shooting device can be quickly and timely controlled to be in a working state or a non-working state.

The utility model relates to oil removal equipment technical field discloses a gear processing oil removal equipment, including the cleaning tank, the cleaning tank front end one side position fixed setting has the oil removal agent feed inlet, the cleaning tank rear end other side position fixed setting has the clear water feed inlet, the cleaning tank both sides inner wall fixed setting has the guide plate, two the middle part sliding of guide plate is provided with the protective cover, the middle part fixed setting of protective cover has the servo motor, the servo motor output fixed setting has the thread installation rod, two the middle part fixed setting of guide plate has the telescopic link no.

The utility model relates to an auxiliary tool for installing a large fixed pulley block of a crane, the auxiliary tool is matched with a flat car or a module car for use, the auxiliary tool comprises a jacking jig frame and a supporting lifting lug, the jacking jig frame comprises two cylinder jig frame groups which are arranged in parallel, and the central axis of each cylinder jig frame group is vertically arranged; a space for vertically placing the fixed pulley block is reserved between the two cylindrical jig frame groups, the top surfaces of the two cylindrical jig frame groups are respectively provided with a first track beam for supporting the fixed pulley block, the two groups of supporting lifting lugs correspond to the two cylindrical jig frame groups in a one-to-one manner, and the two groups of supporting lifting lugs are respectively arranged on the two sides of the fixed pulley block; according to the auxiliary tool, in the jacking process, the installation angle and position of the fixed pulley block can be rapidly adjusted through the flexibility of the flat car and the module car, assistance of large hoisting equipment is not needed, the problem that the site, the hoisting equipment and the hoisting space are limited is solved, and the installation efficiency and the operation safety are greatly improved.

The utility model discloses a device for on-line replacement of a spraying system in a biological filter, which comprises a sewage pipe, a spraying pipe and a spraying head, a water pipe bayonet is arranged on the sewage pipe, a clamping component matched with the water pipe bayonet is arranged at the joint of the sewage pipe and the spraying pipe, and the spraying head is arranged on the spraying pipe. A water retaining cap matched with the clamping assembly is installed at the bottom of the water pipe bayonet, a filtering box is installed at the joint of the spraying pipe and the spraying head, and a filtering assembly is installed in the filtering box. Compared with the prior art, the spraying device has the beneficial effects that the clamping assembly which is convenient to disassemble is arranged between the spraying pipe and the sewage pipe and is matched with the filtering assembly which is convenient to replace and is arranged above the spraying head, so that the replacing and cleaning efficiency of the spraying assembly is improved, the operation procedures are reduced, and the spraying assembly is convenient to disassemble and replace quickly.

The application discloses a shear connector, a steel-concrete composite beam containing the shear connector and a construction method of the steel-concrete composite beam. The shear connector comprises an inverted truncated cone type cylinder (7), a stiffener, a cover plate, a penetrating steel bar (8) and a high-strength bolt (21); the stiffener comprises an integrally formed stiffener bottom plate (13) and a stiffener side plate (14), the size of the stiffener bottom plate is consistent with the size of the lower opening of the cylinder, and the stiffener bottom plate is attached to the lower opening of the cylinder; the stiffener bottom plate is provided with a second connecting hole for connecting the high-strength bolt; the stiffener side plate is arranged around the stiffener bottom plate and is attached to the inner wall of the cylinder; the height of the stiffener side plate is lower than that of the first connecting hole; the cover plate covers the upper opening of the cylinder; the penetrating steel bar transversely passes through the cylinder through the first connecting hole and leaves a connecting section on each side of the cylinder; and the high-strength bolt connects the stiffener bottom plate through the second connecting hole. The application realizes the disassembly and replacement of each component of the shear connector and the prefabricated bridge deck; and the structure form and stress performance of the shear connector are optimized.

A breast sinus drainage medicine injection device, the utility model relates to medical field, the utility model discloses a drainage medicine injection device main part, drainage channel and medicine injection channel, the drainage medicine injection device main part is the hollow structure of upper conical body lower cylinder, and the hollow inner wall is opened to have drainage channel from top to bottom along the circumference, and the medicine injection channel is by the hollow structure in the drainage medicine injection device main part constitutes, the device of the utility model combines drainage and medicine injection into one device, realizes the common operation of drainage and medicine injection, the utility model greatly saves the operation process, reduces the cost, alleviates the discomfort of patient, has market application prospect.

The utility model relates to the field of medicine packaging boxes, and discloses an anti-pressure medicine packaging box which comprises an outer shell, a folding part used for containing an ampere bottle is arranged in the outer shell, a drawing structure is arranged in the area, located on the innermost side of the outer shell, of the folding part, and the drawing end of the drawing structure extends to an opening of the outer shell. A continuous V-shaped structure is formed by folding parts in the packaging box and the connecting transverse plates through the inclined paperboards, and a triangular supporting system is formed by the adjacent inclined paperboards and the inner wall of the shell. According to the geometric structure, external extrusion force can be decomposed into component force in multiple directions, the stability principle of a triangle is utilized, the pressure is evenly dispersed to the whole packaging frame, and local stress of the ampere bottles is avoided. Tests show that compared with a traditional buffer cotton package, the anti-extrusion strength of the structure is improved by more than 60%, and the risk of bottle body breakage in the transportation process is effectively reduced.

The present application belongs to the technical field of analytical chemistry, plastic detection and regenerated polyester quality control, and particularly relates to a microcoulometric method and system for determining trace PVC content in PET microplastics. After water washing and drying of the PET sample, the method uses a selective solvent mainly composed of tetrahydrofuran to dissolve PVC for a short time and filter and fix the volume, burns the chlorine-containing sample solution under the condition of high temperature, oxygen enrichment and copper-free chlorine-trapping filler, converts chlorine into hydrogen chloride and performs microcoulometric titration, and converts the PVC content according to the electrolytic electric quantity, which has the advantages of rapidness, accuracy, resistance to inorganic chlorine interference and suitability for trace detection.

A connection control method of a handwriting pen and an electronic device are provided. The method is applied to a first electronic device, and a handwriting pen establishes a first wireless connection with a second electronic device, and the first wireless connection is used to implement general service data transmission. The method comprises: the first electronic device receiving a screen projection request sent by the second electronic device; the first electronic device displaying a screen projection interface of the second electronic device in response to the screen projection request; and the first electronic device automatically establishing the first wireless connection with the handwriting pen. The technical solution provided in the present application does not require the user to manually manage the connection between the first electronic device and the handwriting pen, reduces the operation process when the user uses the handwriting pen, and thus improves the user experience.

The application belongs to the technical field of seamless steel pipe surface treatment, and discloses a seamless steel pipe surface decontamination device and a use method thereof, which comprises a treatment box, a gap is formed in the side surface of the treatment box, and a movable baffle is movably sleeved in the inner wall of the treatment box. The application realizes local cleaning of the seamless steel pipe in the local space at the bottom, and realizes comprehensive decontamination and cleaning in the rotating process by cooperating with the self-rotation effect. In the actual decontamination and cleaning process, the active adjustment of the cleaning angle of the seamless steel pipe is reduced, the operator can clearly monitor the decontamination and cleaning environment on one side, the decontamination and cleaning of the large-volume seamless steel pipe is realized, the convenience of decontamination operation is greatly improved, the decontamination efficiency is improved, the actual decontamination situation of the seamless steel pipe with different pollution conditions can be observed, the decontamination and cleaning process can be timely controlled, the decontamination and cleaning is not incomplete in the fixed time, the decontamination time is not too long, and resources are not wasted, and the use effect is good.

The invention relates to the technical field of carbon fiber plate spraying, in particular to a carbon fiber plate surface spraying device which comprises two fixing frames, a conveying belt is arranged between the two fixing frames, and first supporting frames are arranged on the two sides of the middle of the conveying belt; the overturning assembly is arranged at the position between the two first supporting frames and used for overturning the machined part. The spraying assembly is arranged in the middle of the top end of the fixing frame and used for spraying the surface of the machined part. Through the cooperative structural design of the conveying belt, the spraying assembly and the overturning assembly, spraying can be conducted on the surface of a machined part through the spraying assembly when spraying operation is conducted on the machined part, the machined part can be overturned through the overturning assembly after single-face spraying operation is conducted on the machined part, and therefore spraying operation is conducted on the other face of the machined part; and the operation procedures of spraying operation are effectively reduced, and the working efficiency of spraying is improved.

The utility model discloses a one-time centrifugation blood platelet-rich plasma preparation device, which comprises a device main body, an upper cover and a red blood cell storage cover, the device main body is in a shape of tightening towards the center, the tightening part forms a blood channel and is provided with a rotary switch, and a platelet plasma storage chamber is arranged above the rotary switch; a suction hole is formed in the platelet plasma storage chamber, an erythrocyte storage chamber is arranged below the rotary switch, and the connecting depth of the erythrocyte storage cover and the device body can be adjusted to change the capacity of the erythrocyte storage chamber. The operation process can be remarkably simplified through the single-time centrifugal technology, the personal error risk caused by multiple times of operation is reduced, and the method is particularly suitable for clinical rapid processing or medical scenes with limited resources. In addition, mechanical damage to platelets and growth factors can be effectively reduced by reducing the number of times of centrifugation, higher cell activity and functions can be reserved, and therefore the treatment effect of the PRP is further improved.

The utility model relates to the technical field of display devices, in particular to an advertising cloth display stand convenient to hang, which comprises a frame component, limiting components are mounted on two sides of the frame component, a fixing frame is mounted at the top of the frame component, and a hanging component is mounted at the top of the fixing frame. According to the improved advertising cloth showing stand, through the hanging assembly, the advertising cloth showing stand can be rapidly hung and installed, the operation process is reduced, the labor force is reduced, meanwhile, the time cost is saved, the hanging assembly can be installed outside the fixing rod, and therefore the advertising cloth showing stand is convenient to use. According to the advertising cloth showing stand, the fixing rods of different sizes can be adjusted and installed correspondingly, so that the advertising cloth showing stand can conduct corresponding hanging showing work, the stability after installation is guaranteed, the situation that the advertising cloth showing stand falls off is effectively avoided, meanwhile, corresponding adjusting and installing work can be conducted according to the fixing rods of different sizes, and therefore the flexibility during installation is improved.

The utility model provides automatic taxus chinensis branch and leaf harvesting equipment, which relates to the field of taxus chinensis branch and leaf harvesting equipment and comprises a wheel type vehicle body, a robot moving platform, an elevator and a camera are arranged on the upper side of the wheel type vehicle body, a mechanical arm is connected to the upper end of the elevator, and an electric pruning chain saw is connected to the tail end of the mechanical arm. A collecting device is connected to the front end of the wheel type vehicle body and comprises a collecting hopper, a shearing box is connected to the lower end of the collecting hopper, meanwhile, a conveying box is connected to the lower side of the shearing box, a collecting box is connected to one end of the conveying box, a water tank is connected to the upper side of the collecting box, and a water pump is connected to the outer side of the water tank; the output end of the water pump is connected to the upper end of the collecting hopper through a water pipe. The automatic harvesting machine has an automatic harvesting effect, and has the effects of cutting, chopping and cleaning the harvested branches and leaves at the first time.

The invention relates to the field of tea processing, and provides a tea granulation method based on a moisture activation dry granulation technology, which comprises the following steps: selecting raw materials, removing impurities, carrying out fixation, drying, screening, chopping the raw materials into powder, putting the raw materials into a granulation device, adding an adhesive, spraying, adding a hygroscopic material, and taking out finished product particles. The tea particles are prepared by using a moisture activation dry method, so that the method has the advantages of increasing the granularity of the tea particles and improving the flowability and compressibility of the tea particles; meanwhile, the granules do not need to be dried again in the granulation process, the used water amount is small, the advantages of being wide in application range, high in efficiency and low in energy consumption are achieved, and the number of operation procedures is small in the continuous production process; compared with a conventional tea granulation method, the tea granulation method has the advantages that the amount of water used in the tea granulation process is very small, and large cakes cannot be formed.

The application discloses a platelet antibody detection and cross matching blocking chromatography kit and a detection method thereof, wherein the kit comprises a U-shaped microwell plate, a chromatography medium for separating platelet immune complexes from non-cell particle components under the action of centrifugal force, freeze-dried platelets, a platelet diluent, a platelet fluorescent staining solution comprising fluoresceinized platelet antibodies specifically labeled for platelets, biotin-labeled anti-human globulin for specifically binding with antibodies bound to the surface of the platelets, avidinized fluorescein for coupling with the biotin-labeled anti-human globulin through a biotin-avidin specific binding system, negative control serum / plasma and positive control serum / plasma. The application combines the blocking chromatography technology with a high-sensitivity flow immunofluorescence method to construct an efficient and accurate platelet antibody detection and cross matching system, which is high in specificity and sensitivity, simple in operation and stable in detection results.

This invention belongs to the field of seamless metal composite tube forming technology, specifically relating to a high-efficiency adjustment device and method for a guide plate of a three-roll skew rolling mill. The high-efficiency adjustment device includes a slide block with arc-shaped sliders on both sides. These arc-shaped sliders slide within arc-shaped grooves, which are formed on the mill frame. Arc-shaped teeth are symmetrically arranged on both sides of the upper surface of the slide block, meshing with gears. The gears are mounted on a rotating shaft, which is installed in two bearing seats. The bearing seats are fixedly mounted on a support, which is bolted to the mill frame. One end of the rotating shaft passes through the mill frame and is fixedly connected to the output shaft of a motor. The motor is fixedly mounted on a support plate, which is bolted to the mill frame. This invention enables radial, circumferential, and axial adjustment of the guide plate's position, accommodating more complex rolling conditions, improving product quality, and producing a wider variety of seamless bimetallic composite tubes.

The invention discloses a catheter selection method and a catheter selection device. The method comprises the steps that a processing circuit assembly receives a first instruction triggered by a man-machine interaction assembly, the blood vessel size of a target blood vessel in a blood vessel image is measured, and the blood vessel image is collected through an image collection assembly; the first instruction is generated after the human-computer interaction component triggers a blood vessel measurement function or generated after the human-computer interaction component selects a target catheter identifier on a display interface of the display; the processing circuit assembly obtains at least two available catheter identifications of different sizes and generates image data comprising the available catheter identifications; the processing circuitry provides image data to the display such that the display receives the image data and displays at least two available catheter identifications of different sizes on the display interface. By means of the mode, at least two available catheter marks of different sizes can be displayed, and an operator can conveniently select a catheter of a proper size.

This application discloses a concrete setting performance testing device, relating to the field of concrete testing devices. It includes a housing, a mold, a resistance testing component, and an environmental simulation component. The mold is used for sample forming. The resistance testing component includes a probe, a probe moving component, a rotation drive component, a connecting seat, and a detection component. The probe moving component drives the probe to move, allowing it to penetrate the sample. The rotation drive component drives the connecting seat to rotate, enabling switching between multiple probes. The detection component detects the resistance of the probe. The environmental simulation component includes a solar radiation simulation component, a wind condition simulation component, and a temperature and humidity simulation component, all housed within the housing. The solar radiation simulation component simulates construction solar radiation, the wind condition simulation component simulates construction wind conditions, and the temperature and humidity simulation component simulates construction temperature and humidity. This application improves the efficiency and accuracy of concrete setting performance testing.

The utility model provides a single crystal rock sugar discharging machine of a crystallizing tank, which belongs to the technical field of particle material conveying and structurally comprises the crystallizing tank and a chain plate type conveyor. A discharging window is formed in the side wall of the crystallizing tank; an opposite spiral shifting wheel collector is fixedly arranged at the upstream end of the chain plate type conveyor; the front end of the upper conveying face of the chain plate type conveyor is arranged in the tangential direction of the lower edge of the shifting wheel conveying mechanism and used for receiving backward feeding of the shifting plate. The chain plate type conveyor is provided with a shell, the downstream end of the shell is communicated to the material screening box, and a large particle discharging bottom discharging opening used for discharging materials downwards is formed in the bottom of the material screening box. The single crystal rock sugar discharging device is efficient, stable, simple in structure, small in size, convenient to move and suitable for single crystal rock sugar discharging conveying operation. According to the utility model, material picking, conveying, screening and material distributing are integrated, so that the operation procedures are effectively reduced, the manual work is replaced, and the working efficiency is improved.

The utility model relates to a kind of overturning structure of heat exchanger tube plate polishing frock, overturning support, two positioning assemblies for positioning circular tube plate are arranged on the overturning support and present left-right symmetry distribution, the positioning assembly includes support component rotationally installed on overturning support.This overturning structure of heat exchanger tube plate polishing frock realizes the self-adaptive centering function of V-shaped clamping plate, ensures that the reference position of tube plate is consistent before and after turning over, avoids double-sided processing deviation, significantly improves the coaxiality and flatness of tube plate double-sided polishing, and the combination design of lifting component and elastic piece effectively disperses tube plate weight, avoids the edge deformation caused by excessive clamping force of tube plate, and when turning over is completed, electric push rod retracts, lifting frame is automatically reset under the action of elastic piece, reduces unnecessary operation process, further improves the efficiency of heat exchanger tube plate processing, and by adjusting the stroke of linear driver, different diameter tube plate can be adapted.

This invention discloses a mobile asphalt mixing plant for low-temperature asphalt mixing, comprising a main body with a central through groove formed in the middle of the top plate of the main body. A feed hopper is located directly below the central through groove and within the main body. Connecting support seats are fixed to the front and rear of the bottom center of the left and right side plates of the feed hopper, and weighing sensors are installed on the bottom surface of the connecting support seats. This system dries the air in the main body, ensuring that there is virtually no water during mixing in the mixing tank, thus guaranteeing the mixing effect. Furthermore, it directly senses and weighs the aggregate after it is poured into the feed hopper, ensuring the accuracy of the feed quantity. It eliminates the need for separate weighing before feeding, reducing pre-feeding operations. Simultaneously, it first pours asphalt into an asphalt filling tank, and then transports it to the mixing tank via an asphalt delivery pump, enabling continuous transport. Moreover, the asphalt filling tank can automatically weigh the incoming asphalt, eliminating the need for a pre-weighing process.

The utility model discloses a mixed reagent stirring device which comprises a base, a driving motor is arranged in the base, a gear is connected to the output end of the driving motor, a rotary gear bearing is installed on the top of the base, an outer ring of the rotary gear bearing is fixed relative to the base, and an inner ring of the rotary gear bearing is provided with meshing teeth and meshed with the gear. A stirring barrel is inserted into the top of an inner ring of the rotary gear bearing, vertical rods are mounted on two side sections of two parts of the base, a stirring shaft is vertically arranged in the stirring barrel, a lifting frame is fixedly connected to the top of the stirring shaft, and the tops of the vertical rods on two sides of the lifting frame are connected; stirring paddles are fixedly mounted on the stirring shaft, a stirring cover is inserted into the top of the stirring barrel, and the stirring shaft penetrates through the stirring cover and is rotationally connected with the stirring cover; the problems that a traditional device is uneven in mixing, inconvenient to disassemble and assemble and poor in stability are effectively solved.

This application provides a circuit and system for voltage information diagnosis and self-calibration. By adding resistors R1 and R2 in series, the total cell voltage is divided, reducing the sampling point voltage Vsample to the measurement range of the analog-to-digital converter (ADC) of the microcontroller (MCU). The MCU accumulates and calculates the total voltage Vafe by sampling the voltages of each cell from the analog front-end (AFE). Based on the Vafe data from the AFE, the total cell voltage Vmcu is automatically calibrated to obtain the calibrated total cell voltage Vcalib. Simultaneously, the MCU compares the calibrated total cell voltage Vcalib with the Vafe voltage in real time to obtain the deviation value Vdiag. When the deviation value Vdiag exceeds a set threshold, fault diagnosis is triggered, indicating an abnormality in the cell voltage sampling function, and a safety protection mechanism is activated to meet functional safety requirements. This circuit, through reasonable hardware design, voltage protection, cell total voltage calibration, and fault diagnosis mechanism, not only improves the accuracy of system measurements but also achieves self-calibration and fault diagnosis, making it suitable for applications with high stability requirements.

The utility model belongs to the technical field of patch cords, and particularly relates to a patch cord with a waterproof function, which comprises a switching assembly, the outer surface of the switching assembly is connected with a storage assembly, the storage assembly comprises a positioning ring, one side surface of the positioning ring is connected with a positioning plate, one side surface of the positioning plate is provided with a group of positioning grooves, and the positioning grooves are arranged in the positioning ring. The outer surface of the switching assembly is connected with a waterproof assembly. According to the device, the storage assembly can be conveniently moved through the positioning ring, each positioning groove is matched with a wire body, the wire body can be conveniently and rapidly inserted into the positioning groove, the wire body can be clamped by combining resilience force of the positioning plate, the wire body can be conveniently arranged, the operation process is reduced, and the working efficiency is improved. The second waterproof cover is matched with the first power connection seat, the positioning cover is matched with the plug, and the resilience force of the connecting belt is utilized, so that the waterproof effect of the first waterproof cover and the second waterproof cover on the adapter assembly can be improved, and the waterproof cost is reduced.

This utility model discloses a processing equipment for Polygonum multiflorum, belonging to the field of pharmaceutical equipment. It mainly consists of a tank (1), a hanging basket (2), a spray system (3), a hydraulic device (4), a condenser (5), a circulation pipeline (6), and a pump set (7). This utility model innovatively designs and expands the functions of existing Polygonum multiflorum processing equipment. By setting up novel structures such as a "spray system," "circulation pipeline," and "pump set," Polygonum multiflorum can fully absorb black bean juice, thus achieving uniform steaming and reducing toxicity while increasing efficacy. This utility model has a simple structure, is easy to operate, energy-saving, and environmentally friendly, making it suitable for large-scale industrial production.

The invention discloses a quick assembly type photovoltaic panel mounting system for mountainous regions, which comprises a support beam, a photovoltaic panel and a retaining mechanism, and is characterized in that the retaining mechanism comprises a retaining seat, a retaining assembly and a sliding plate. When the maintaining assembly rotates, the sliding plate is pushed through rotation of the maintaining assembly, and the fixing piece is driven to get close to the blocking plate. According to the rapid assembly type photovoltaic panel mounting system for the mountainous region, a fixing piece arranged at the bottom of a photovoltaic panel is connected with a retaining mechanism in a matched manner, and a rotating piece in a retaining assembly is pushed, so that the rotating piece rotates when moving upwards along a guide curved surface, a sliding block is driven to move upwards to push a spring and a retaining block, and the mounting efficiency of the photovoltaic panel is improved. The first teeth and the second teeth are meshed and locked, the sliding plate is pushed by the rotating piece, the fixing piece is kept to be limited between the sliding plate and the blocking plate, and the rotating piece is limited to the supporting face by the guide block. Rapid installation and positioning work of the photovoltaic panel is achieved, other tools are not needed for auxiliary installation, the operation process is reduced, and the construction period is shortened.

This utility model discloses a candle making machine, relating to the field of candle production technology. It includes a first support frame, with a material conveying mechanism on its surface and a first mounting base fixedly connected to the surface of the first support frame. A second support frame is located at the right end of the first support frame. The inner wall of the second support frame has a red-filling mechanism, and a second mounting base is fixedly connected to its surface. A red-filling pool and a water pool are fixedly connected to the inner wall of the second support frame. The material conveying mechanism includes a first hollow rod, a first material conveying slide rail, a first material conveying drive shaft, a first material conveying motor, a first sprocket, a slide bar, a drive rod, a shelf, a first drive chain, a first rotating shaft, and a second hollow rod. Using this utility model for candle production offers advantages such as reducing the need for extensive manual operation, facilitating large-scale production, improving production efficiency, and ensuring product quality.

The invention discloses a recyclable grouting device, system and method, and belongs to the technical field of petroleum and natural gas drilling equipment. Effective grouting operation in the drilling tool and the casing string is realized, and compressed air in the drilling tool and the casing string is further prevented from being generated, so that the correct judgment on overflow during and after the operation of descending the drilling tool and the casing string on site is facilitated; in addition, drilling fluid in the well can be circulated, a kelly bar or a top driving device does not need to be connected, operation procedures are reduced, and underground safety is improved; drill jamming caused by sand setting and drill jamming caused by adhesion due to long standing time of a drilling tool or a sleeve during open hole section operation are avoided, and underground and equipment accidents are reduced and prevented.