30results about How to "Improve coherence" patented technology

This invention relates to the field of spectroscopic measurement technology, and particularly to a measurement system and method for measuring the concentration of high-temperature combustion gases in aero-engines. The measurement system includes a supercontinuum laser source, a first collimating mirror, a second collimating mirror, a spectrometer, and a computer. The measurement method includes acquiring the actual transmittance spectrum of the high-temperature combustion gases; calculating the theoretical transmittance spectrum of the high-temperature combustion gases; constructing constraints; fitting the actual transmittance spectrum and the theoretical transmittance spectrum into the constraints; and calculating the concentration of the high-temperature combustion gases. The measurement system has a lightweight structure, requiring only holes for mounting the laser emission and absorption devices on the inner wall of the aero-engine casing. The measurement method uses a supercontinuum laser source, which, compared to ordinary lasers used in active gas detection, offers better spatial coherence, a wider spectral adjustment range, and higher intensity, enabling the detection of more types of gases. The method uses a multi-band combustion gas absorption model to solve for the temperature of the high-temperature combustion gases, improving the accuracy of the concentration calculation.

The invention relates to the technical field of motor recovery processing equipment, and discloses an efficient disassembling platform for a three-phase motor, which comprises a rack, the rack is slidably connected to the ground through universal wheels, a platform plate and a power mechanism are mounted in the rack, the bottom end of the rack is mounted on the platform plate, the power mechanism comprises an inclined pressing arm, and the inclined pressing arm is connected with the rack through a connecting rod. The power mechanism is used for pushing the inclined pressing arm to press the pressing and cutting assembly so that the pressing and cutting assembly can move horizontally and downwards, one end of the clamping mechanism makes contact with the pressing and cutting assembly, a copper removing mechanism is installed at the other end of the clamping mechanism, the power mechanism comprises a hydraulic cylinder, a main shaft is fixedly connected to one side of the hydraulic cylinder, and a moving block is fixedly connected to one side of the main shaft. And one side of the moving block is fixedly connected with a push rod. The moving block with the inclined pressing arm is driven by the single hydraulic cylinder, horizontal thrust is converted into vertically downward shearing force through cooperation of the inclined faces, and cutting of the exposed copper wire at the end of the motor is completed.

This utility model relates to the field of bearing manufacturing technology, specifically a positioning and adjustment device for a robot control box. It includes a base plate, a robot control box mounted on the base plate, and a positioning and adjustment mechanism mounted on the base plate and acting on the robot control box. The positioning and adjustment mechanism includes an L-shaped support frame, a first sliding rod, and a positioning frame. The L-shaped support frame is located on one side of the base plate. The first sliding rod is mounted on the robot control box and slides in cooperation with the vertical side of the L-shaped support frame. The positioning frame slides vertically on the horizontal side of the L-shaped support frame. The bottom of the robot control box slides in cooperation with the base plate. Symmetrical positioning holes are provided on both the bottom of the robot control box and the base plate. Pushing the first sliding rod until the positioning hole on the robot control box aligns with the positioning hole on the base plate, the positioning rod re-inserts into the positioning hole under the action of a second spring. At this time, both the first and second springs extend, and the positioning rod positions the robot control box on the base plate.

The invention relates to a polyphenyl ether composite material as well as a preparation method and application thereof, and belongs to the technical field of compositions of high-molecular compounds. The flame-retardant polyphenyl ether composite material is prepared from the following components in parts by weight: 38 to 62 parts of polyphenyl ether resin, 18 to 37 parts of polystyrene resin, 8 to 22 parts of flame retardant and 1 to 8 parts of flexibilizer, the total mass concentration of 3, 3 ', 5, 5'-tetramethyl-4, 4 '-biphenyl quinone and 3, 3', 5, 5 '-tetramethyl biphenol in the polyphenyl ether resin is 8 ppm to 30 ppm, and the flexibilizer comprises an ethylene terpolymer and a hydrogenated styrene-butadiene-styrene block copolymer. The flame-retardant polyphenyl ether composite material has the advantages of high flame retardance, high melt flowability and good matte characteristic.

This invention relates to the field of plastic pretreatment technology, and in particular to a plastic adhesive resin pretreatment device and method, comprising: a positioning component, including a base, an assembly groove on the top surface of the base, a pressing block at the bottom of the assembly groove, and clamping blocks around the assembly groove; a grinding component, including a pressure plate on the base, a guide groove on the top surface of the pressure plate, a positioning slider inside the guide groove, a frosting plate at the bottom of the positioning slider, and a through hole on the bottom surface of the guide groove for the frosting plate to penetrate; a transmission component, including columns on the top of both ends of the pressure plate, an eccentric wheel at the bottom of the columns, a transmission frame between the eccentric wheel and the frosting plate, a push plate on the upper end of the columns, a threaded groove on the outer surface of the columns, and a guide slider inside the push plate, the guide slider being located inside the threaded groove and slidingly engaged; and a drive component, including a telescopic cylinder on the top of the push plate.

The utility model discloses a conveying connection mechanism and automatic printing equipment, the conveying connection mechanism comprises a first module, a second module, a pushing assembly and a receiving assembly, the first module is provided with a first conveying assembly for conveying certificates; the second module and the first module are arranged adjacently, and the second module is provided with a second conveying assembly for conveying certificates; the pushing assembly comprises a fixing frame, a pushing plate and a first driving part, the fixing frame is fixedly connected to the first module, the pushing plate is slidably connected to the fixing frame, and the first driving part is used for driving the pushing plate to slide so that the certificates can move in the direction close to the second module; the receiving assembly comprises a second driving part, a driving wheel and a driven wheel, the driving wheel and the driven wheel are arranged at the input end of the second module, the second driving part is used for driving the driving wheel to rotate, and the driving wheel and the driven wheel are matched to convey certificates. According to the conveying connection mechanism, the conveying continuity can be improved, and the printing efficiency is improved.

The utility model relates to a kind of continuous diffusion welding equipment, comprising: feeding unit, including feeding conveyor;Discharge unit, including discharge conveyor;Processing unit, the processing unit includes tunnel furnace and cooling tunnel connected, the tunnel furnace is equipped with pressurizing mechanism, the inside of tunnel furnace and cooling tunnel is equipped with tray conveying device;Circulating conveying unit, the circulating conveying unit includes circulating conveyor belt;Wherein, the both ends of the tray conveying device are connected with the feeding conveyor and discharge conveyor respectively, the both ends of the circulating conveyor belt are connected with the feeding conveyor and discharge conveyor respectively, so that the feeding unit, processing unit, discharge unit and circulating conveying unit are sequentially connected in order, form continuous circulating processing line.The utility model degree of automation is high, can effectively guarantee the safety of welding worker, and can realize continuous uninterrupted circulating processing effect, improve production efficiency.

This invention discloses an intelligent inspection system for the appearance and dimensions of capacitors, belonging to the field of capacitor appearance quality inspection technology. It aims to solve the problems of low efficiency, inconsistent standards, limited functionality, and cumbersome workstation switching in existing manual inspection methods. The system includes an image acquisition module, an image processing and inspection module, a workstation control module, and an information storage and output module. The supporting hardware structure includes a chassis, a rotary motor, a pentagonal turntable, an extension block, a lifting cylinder, and a mechanical gripper. Through multi-station image acquisition and comprehensive image processing, it achieves full-dimensional inspection. The workstation control module, in conjunction with the hardware, completes automatic transfer and positioning, and the inspection data is uniformly stored and output. This invention achieves automated full-dimensional inspection, improves inspection efficiency and accuracy, ensures consistency in judgment, is suitable for mass production, and facilitates quality traceability and control.

The application relates to a hook support and a multifunctional fitness equipment. The hook support comprises a support body, a rotating shaft and a rotating sleeve. The support body comprises a front panel and a back panel arranged oppositely and two side panels connected to the front panel and the back panel at two sides, and a containing space is formed among the front panel, the back panel and the two side panels. The rotating shaft is arranged in the containing space, and two ends of the rotating shaft are respectively mounted on the front panel and the back panel. The rotating sleeve is hollow in the inside and is sleeved on the outside of the rotating shaft, and the rotating sleeve can rotate relative to the rotating shaft. The side panel comprises a side wall part in the length range of the rotating sleeve, and a horizontal plane where the radial highest point of the rotating sleeve is located is higher than the upper end surface of the two side wall parts. Through improvement on the structure of the hook support, the action of taking and placing a barbell rod is more smooth, and the continuity and user experience in the training process are improved.

The invention discloses a circuit waveform fault auxiliary diagnosis method for an experiment teaching scene, and belongs to the technical field of electronic measuring instruments and experiment teaching equipment, and the method comprises the steps: S100, generating an excitation signal; step S200, acquiring an original waveform signal; s300, uploading the waveform data to a PC (Personal Computer) end; step S400, deploying a large language model at a PC terminal and constructing a fault knowledge base; step S500, waveform features are extracted; step S600, describing a target waveform through a text / voice; s700, performing fault mode matching based on the actual waveform features and the target waveform features; and S800, generating a fault analysis report and outputting a sorting result. The method is suitable for experimental circuit waveform analysis and fault auxiliary positioning.

The application relates to the technical field of drainage devices, and a multifunctional negative pressure drainage ball, which comprises a negative pressure ball body, liquid inlet and liquid outlet arranged at two ends of the negative pressure ball body, a liquid inlet pipeline and a pressure adjusting device, one end of the liquid inlet pipeline is connected with the liquid inlet through a three-way pipe, a pressure gauge is connected to the three-way pipe, the pressure adjusting device is connected to the liquid inlet pipeline, the pressure adjusting device comprises a scale cylinder and a piston rod, the piston rod is slidably connected with the scale cylinder, one end of the scale cylinder away from the piston rod is connected with the liquid inlet pipeline and a cleaning liquid container through a connecting pipe and a cleaning pipe, first and second valves are respectively arranged on the connecting pipe and the cleaning pipe, and third and fourth valves are respectively arranged at two ends of the connecting position of the liquid inlet pipeline and the connecting pipe. The application can effectively improve the stability and smoothness of the drainage operation.

The invention provides an intelligent plant pruning mechanical arm control method and system, relates to the field of intelligent robot control, and solves the technical problems that an existing plant pruning mechanical arm system seriously depends on a plane vision image, the plant sensing precision is low, and the pruning path planning capability is poor. The method comprises the following steps: collecting multi-modal visual data of a target plant, and processing the visual data based on a three-dimensional reconstruction algorithm to generate a plant three-dimensional model; a target three-dimensional model of a target shape is obtained, difference analysis and trajectory optimization are conducted on the plant three-dimensional model and the target three-dimensional model based on the differentiable simulation technology, and a pruning path of the mechanical arm is generated; and receiving a user instruction, analyzing the user instruction through an intelligent algorithm, mapping the user instruction to the three-dimensional model, and generating and driving a mechanical arm to perform trimming operation along the trimming path.

The present application relates to the technical field of tool changing, and particularly relates to a tool changing system and method based on a central tool magazine, which comprises a central tool magazine, a buffer station and a tool changing robot, the central tool magazine is provided with a plurality of bearing structures for bearing tool shanks, and the center lines of the tool shanks located on the central tool magazine are horizontally arranged, and the buffer station is provided with a transfer structure for temporarily receiving the tool shanks; the end of the tool changing robot is provided with a first clamping mechanism and a second clamping mechanism, the first clamping mechanism clamps a clamping groove of the tool shank to realize tool changing between the buffer station and a machine tool magazine, and the second clamping mechanism clamps a pull pin of the tool shank to realize tool changing between the buffer station and the central tool magazine, the central tool magazine of the present application has a vertical tool storage form, realizes transfer through the buffer station, has a large tool storage capacity and meets the tool storage demand.

This utility model discloses a V-shaped filter water inlet distribution device, including a filter body, an installation box on the drainage side of the filter body, symmetrical hangers on both sides of the inner wall of the filter body, a rotating water distribution mechanism below the hangers, and sealing components on both sides of the rotating water distribution mechanism. This utility model has a simple structure and reasonable design, improving the structure of the traditional V-shaped channel. When the filter holes become clogged, the internal filter plate can be reversed in time, and the blockage can be cleared by water pressure backwashing. This ensures that the sewage can be evenly distributed on the lower filter media layer and avoids blockage in the V-shaped channel, achieving long-term stable operation of the V-shaped filter and better meeting the actual use requirements of the current V-shaped filter. At the same time, after the filter plate is rotated and adjusted, the drainage channel on the other side is simultaneously sealed by the sealing flap. The whole process is linked through structural design, with good continuity.

The invention provides a vehicle double-valve shock absorber control method and device and a vehicle. The double-valve shock absorber comprises a first control valve and a second control valve. According to the method, a first current is used for enabling a double-valve shock absorber to move to offset vehicle shaking; in the process of the first-stage movement, a second current needing to be applied to the second control valve when the double-valve shock absorber moves in the second stage is predicted based on the first peak movement speed, the second current can be predicted before the double-valve shock absorber enters the second-stage movement, and in the process of the first-stage movement of the double-valve shock absorber, the second current needs to be applied to the second control valve. The current applied to the second control valve is applied to the second control valve in advance, so that when the double-valve shock absorber enters the second stage from the first stage, the second control valve directly participates in damping force regulation and control, the current applied to the second control valve does not need to be temporarily calculated, the damping force construction time is shortened, and the connection continuity of the control method during switching of the double-valve shock absorber in the motion stage is improved; and the driving feeling is improved.

The invention provides a video polyphonic ringtone processing method and device, and relates to the technical field of communication and the technical field of video polyphonic ringtones. The method comprises the steps of determining one or more target video polyphonic ringtones from a first database associated with terminal equipment when monitoring that the terminal equipment triggers a call operation; obtaining a symmetric key, performing symmetric encryption on the target video polyphonic ringtone according to the symmetric key, and obtaining a candidate encryption packet; acquiring a public key of the terminal equipment, and performing asymmetric encryption packaging on the symmetric key and the candidate encryption packet according to the public key to acquire a video encryption packet; and sending the video encryption packet to the terminal equipment. According to the invention, the content of the video polyphonic ringtone can be dynamically adjusted, the continuity of playing the video polyphonic ringtone is improved, the bandwidth occupation is reduced, the problems of lagging and delay are avoided, and the safety and flexibility of processing the video polyphonic ringtone are improved.

The utility model discloses a kind of high-efficiency conveying detection systems. Including conveying unit, direction adjusting unit, sole pattern detection unit and control unit. Conveying unit adopts double-row chain type conveyor belt structure, two rows of conveyor belt are arranged in parallel, direction adjusting unit is arranged in the middle of conveying unit, including visual identification module and the rotary adjusting mechanism of being set on the top of conveyor belt being installed in the both sides of conveyor belt. Sole pattern detection unit is located in conveying unit middle rear section, including bottom visual detection component and defect identification system. Control unit adopts programmable logic controller. The utility model has the beneficial effect that: the utility model has automated direction adjustment, through visual identification module and rotary adjusting mechanism, realize the automatic detection and adjustment of slippers conveying direction, greatly improve production efficiency. The utility model detects quality accurately, can carry out comprehensive, accurate detection to sole pattern, ensure that product quality meets standard.

This application relates to the field of device control, providing a control method for a mobile device, a mobile device, and a storage medium. The mobile device includes a body and a leg structure connected to the body. The method includes: detecting the current state of the mobile device, wherein the current state includes a first state, which is a state in which the mobile device is detached from a support surface due to external force; if the current state is the first state, controlling the mobile device to enter a first mode, wherein the first mode includes controlling the leg structure of the mobile device to retract to a preset posture and maintain the preset posture; compared with the mobile device standing, in the preset posture, the end of the leg structure is closer to the body in the height direction. By adjusting the posture of the leg structure of the mobile device in the first mode, the switching between the two states of detachment from and contact with the support surface of the mobile device is smoother, improving the continuity of the mobile device's operation.

The utility model discloses a split type motor framework assembling mechanism, and belongs to the technical field of motor manufacturing. Comprising an iron core and a framework, and the assembling mechanism comprises a lower positioning jig, an upper positioning jig and a pressing rod capable of reciprocating in the first direction; the iron core can be vertically placed on the lower positioning jig in the assembling direction of the iron core and the framework, the framework can be connected to the upper positioning jig in a sliding mode in the assembling direction of the framework and the iron core, and the iron core placed on the lower positioning jig can move along with the lower positioning jig to correspond to the framework on the lower positioning jig. The assembling direction between the iron core and the framework is consistent with the first direction, and the pressing rod can downwards press the framework arranged on the upper positioning jig to move to be matched with the iron core on the lower positioning jig in an inserted mode. The split type motor framework assembling mechanism solves the problems that the assembling difficulty of a framework and an iron core on an existing split type motor stator splicing block is large, the efficiency is low, and the assembling quality is difficult to guarantee.

This invention discloses a high frame rate ultrasound plane wave tensor completion method based on T-SVD and angle regularization, belonging to the field of ultrasound imaging technology. The method includes: acquiring data; encoding selected and unselected angles into TCP codes; transmitting the encoded image along a specified angle; constructing a mask matrix Ω to form an incomplete tensor X containing partially known data; zero-padding the acquired RF data to expand it to the full size; reconstructing the data corresponding to the missing angles from the incomplete tensor; iteratively solving the problem using the alternating direction multiplier method; determining whether the convergence error convergence criterion has been met; and, after iteration, completing the tensor X to obtain the full angles. Composite imaging is then performed based on the obtained complete RF data. This invention solves the problems of slow convergence speed, high computational complexity, and unsmooth completion results in existing tensor completion algorithms. Under conditions of extremely limited angle sampling, this invention achieves a balance between high frame rate and high quality in ultrasound imaging through efficient low-rank tensor completion.

A two-hand position recognition method, comprising: step S1: obtaining three-dimensional information of left hand, right hand and eye by using a depth camera; step S2: determining eyeball position, face center point and hand anchor point; wherein the hand anchor point is determined by left hand gesture, right hand gesture and relative position of left hand and right hand; step S3: calculating the line of the eyeball position and the hand anchor point, and intersecting with the display at position a; calculating the line of the face center point and the hand anchor point, and intersecting with the display at position b; step S4: according to the distance between the hand anchor point and the eye and the display, respectively giving the position a and the position b weight values alpha and beta, and calculating the weighted center point c of position a and position b; wherein alpha+beta=1. The present application has the advantages of large operation range, high precision, low cost, simple operation, flexible setting.

This invention discloses a device for detecting thread grooves in thermos cups, relating to the field of thermos cup processing and inspection technology. The key technical features include a loading platform and an isolation box. A light source plate and an industrial camera are mounted on the top of the isolation box. A detection conveying module, located directly below the light source plate, is also located within the isolation box for rolling the thermos cups during thread groove detection. A pushing module, located at the starting end of the conveying module, is also located within the isolation box. This pushing module is connected to the loading platform via a guide groove, pushing the thermos cups loaded onto it to the detection conveying module. By incorporating a detection conveying module, this invention enables the rolling transport of the thermos cups, allowing for inspection of the rolling cups using an industrial camera. This allows for comprehensive inspection of the cup rim during transport, improving the continuity of the inspection process and optimizing the production process.

The invention belongs to the technical field of aluminum foil rolling control, and particularly relates to a mirror surface aluminum foil thickness self-adaptive control method for an aluminum foil mill, which comprises the following steps of: acquiring an initial inlet thickness deviation and a real-time belt surface temperature of mirror surface aluminum foil; a dynamic variable stiffness index is obtained according to the real-time belt surface temperature and the preset basic rolling mill stiffness; according to the initial inlet thickness deviation, the dynamic variable stiffness index and the real-time rolling linear speed, the roll gap adjustment amount containing oil film distortion compensation is obtained; and a roll gap control value and a tension decoupling compensation instruction value are obtained according to the roll gap adjustment amount containing oil film distortion compensation and a preset safety pressing threshold value. Dynamic compensation of thermal expansion and an oil film bearing effect is introduced, and an extreme pressure task is transferred to a tension control loop, so that the thickness control precision is improved, and the problem of belt breakage is avoided.

This invention relates to an environmentally adaptive composite radar system, belonging to the field of radar detection technology. It solves the problems of weak environmental adaptability, low single-detection accuracy, and insufficient reliability and stability in existing technologies. The system includes: a laser generation module that outputs multiple laser beams; a microwave radar module that receives a first and second laser beam, modulates the first laser beam with a radio frequency signal to generate a microwave radar transmission signal, and transmits it to the target; a coherent lidar module that receives a third and a fourth laser beam, generates a laser transmission signal based on the third laser beam, and transmits it; receives laser echo signals, and obtains a coherent intermediate frequency (IF) signal based on the laser echo signal and the fourth laser beam, which is then transmitted to a control module; and a control module that processes the IF echo signal and the coherent IF signal to generate characteristic parameters of the target, and controls the operation of the microwave radar module and the coherent lidar module.

The utility model discloses a kind of plasma cutting devices for hoop processing, including base, the upper portion of the base is provided with plasma cutting assembly, the upper surface of the base is fixed with the cutting table of supporting when cutting hoop flat steel by screw, the both sides of the cutting table are provided with the compression seat that can compress two section hoop flat steel after cutting, the upper surface of the cutting table is provided with the through slot corresponding with hoop flat steel cutting position;The utility model twist structure is not only used to prop open compression seat and expose cutout, the angle of rotation motor driving support block rotation can control the prop open width between two groups of compression seat, so that device can adapt to different diameter or thickness of sand disc, whether using thinner fine polishing sand disc or thicker rough polishing sand disc, can pass through adjusting prop open width, ensure that sand disc can effectively contact and polish to cutout, improve the adaptive capacity of device to different processing needs.

This utility model discloses an integrated feeding and dispensing device for connector terminals, comprising a support frame, a first platform, and a second platform. The first platform is provided with a material channel and an opening. The second platform is provided with a slide table that can reciprocate relative to the second platform, the sliding direction of the slide table being perpendicular to the moving direction of the material strip in the material channel. The slide table is provided with a dispensing mechanism and a waste cutting mechanism arranged in parallel. The dispensing mechanism includes a rotating component and a gripper component. This utility model achieves synchronization and continuity of terminal dispensing, feeding, and waste cutting actions by setting the slide table for the moving and alternating functions of the dispensing and waste cutting mechanisms. Furthermore, by setting the rotating component and the gripper component, it achieves simultaneous actions of clamping and separating connector terminals and adjusting the orientation of connector terminals, shortening the material preparation time, improving the continuity of actions, and increasing feeding efficiency.

The application discloses a new low-carbon city carbon emission collaborative prediction method and system based on digital twinning, relates to the technical field of low-carbon city carbon emission prediction, and comprises the following steps: constructing a city multi-source carbon emission data access channel, collecting dynamic streaming data and static benchmark data to form an original data lake, generating normalized carbon emission element data set through standardization cleaning and space-time alignment, and driving a city-level digital twinning basic model to generate a twinning body real-time state sequence. Through the improved attention fusion algorithm introducing a learnable collaborative adjustment factor, an adaptive bias term and a cross-head attention interaction layer, multi-dimensional collaborative features are extracted, a carbon emission collaborative prediction model is used to output multi-time point prediction results, the results are fed back to the digital twinning model to carry out prediction scenario virtual deduction, and a prediction verification closed loop is formed. The method optimizes carbon emission feature extraction and prediction verification process, and improves the accuracy and rationality of city carbon emission collaborative prediction.

The application discloses a narrow linewidth coherent light VCSEL array chip, and the array size is 1*2; the array chip comprises a first laser emission unit and a second laser emission unit which are symmetrical; the first laser emission unit and the second laser emission unit each comprise a first reflector, an oxidation limiting layer, an active layer, a second reflector and a substrate layer which are sequentially arranged from top to bottom; the middle of the oxidation limiting layer of the first laser emission unit and the second laser emission unit is provided with a water drop type light transmission hole, and the end surface of the first laser emission unit and the second laser emission unit is provided with a water drop type light emission hole; the two water drop type light transmission holes and the two water drop type light emission holes are symmetrically arranged and the hole spacing is less than the lasing wavelength. The two lasers of the application oscillate and propagate between the first reflector and the second reflector, are emitted in the surface direction perpendicularly to the oxidation limiting layer in the form of evanescent waves in the light transmission hole, and the evanescent waves emitted by the two laser emission units are coupled near the water drop tip to emit coherent light.

The utility model provides a novel drainer. The novel drainer comprises a rubber mat, a cup body, a sleeve and a locking cylinder, the axial section of the rubber pad is I-shaped, and the rubber pad comprises a top sealing pad, a middle sealing ring and a bottom sealing pad. The outer diameter of the cup body is equal to the inner diameter of the middle sealing ring, and the cup body is provided with a pressing ring. The sleeve and the locking cylinder are sequentially arranged on the periphery of the cup body in a sleeving mode, and the locking cylinder locks the sleeve to the bottom of a water outlet of a water tank through threads. According to the drainer provided by the utility model, the integrated I-shaped rubber pad is adopted, so that the situation that the two sealing pads are misplaced during assembly can be reduced, and the situation that the cup body is mounted obliquely or wrongly is solved. After the rubber mat is installed, the rubber mat has the effect of pinching the water outlet of the water tank, is good in continuity and high in sealing performance, and also has the centering effect on the cup body. Besides, when the locking cylinder is screwed, the top surface of the sleeve is used for pressing the bottom sealing gasket, so that the condition that the bottom sealing gasket is twisted or rotated can be reduced or avoided, and the problem of sealing failure is further avoided.