128results about How to "Improve position" patented technology

The invention discloses an autoregressive visual target tracking algorithm based on token fusion, and the algorithm specifically comprises the following steps: 1, obtaining a public visual target tracking data set, and converting the data set into a central coordinate format; 2, preprocessing an initial template of a given video sequence, an online template at the current moment and a search image to obtain visual embedding of the initial template, a dynamic template and the search image; the method comprises the following steps: preprocessing an angular coordinate sequence of a target frame in previous historical N frames of a current search image of an input video to obtain historical track word embedding of the current search image; 3, constructing an autoregressive visual target tracking model based on token fusion, and designing a loss function; step 4, obtaining a final autoregressive visual target tracking model based on token fusion; the method solves the problem of insufficient model feature extraction capability caused by insufficient utilization of spatio-temporal information and redundant background information of a search area in an existing method.

The invention discloses a positioning processing method suitable for observation data under a GNSS complex condition. The positioning processing method comprises the following steps: step 1, setting residual check thresholds of a pseudo-range positioning observation value and a Doppler velocity observation value; step 2, on the basis of a residual check threshold of a pseudo-range positioning observation value, calculating an optimal estimated value of pseudo-range positioning observation and a corresponding variance-covariance matrix according to residual satellites for satellites with abnormal pseudo-range positioning observation values; step 3, based on a residual error test threshold value of the Doppler velocity observation value and a detection result in the step 2, eliminating satellites with abnormal Doppler velocity observation values, and calculating an optimal estimated value of Doppler velocity observation and a corresponding variance-covariance matrix according to the residual satellites; and step 4, updating the Kalman filtering state vector of the GNSS based on the results of the step 2 and the step 3. The method can improve the estimation precision of the initial values of the position and the speed, and further improves the positioning precision of the GNSS.

The utility model relates to the technical field of building equipment, in particular to a climbing frame support fixing device for a split-level building structure, which is characterized in that a base is fixed on the horizontal ground through a through-wall lead screw to enable the equipment to have a stable foundation plane, and a vertical upright post is arranged at the front end of the base through a connecting bolt; then the long inclined struts are in inclined lap joint with the base and the stand column to form a stable triangular structure, all the components are stably connected through connecting bolts, the wall-attached supports are arranged at the upper end of the stand column and the horizontal plane end of a base installation layer respectively, and after vertical response is formed, construction and installation of the next link of the scaffold are facilitated.

The invention provides a target detection method and system for a cervical cell image, and relates to the technical field of target detection, and the specific scheme comprises the steps: obtaining a to-be-detected cervical cell image; inputting the cervical cell image into a trained target detection model to obtain a candidate target area of the cervical cells; wherein the target detection model is used for fusing low-level feature information and high-level information based on enhanced semantic information and position information by adopting a multi-level connected feature pyramid network on the basis of YOLOv5, and generating candidate target areas through fused features; according to the method, the extraction capability of cell characteristics and the perception capability of the model are improved, so that better detection performance is obtained.

The utility model relates to the technical field of curvature detection, in particular to a curvature detection device for a femoral stem, which comprises a mounting plate, a mounting block is arranged on one side of the top end of the mounting plate, a mounting groove is arranged in the top end of the mounting block, a threaded rod is arranged in the mounting groove, a movable block is arranged on the threaded rod, and the movable block is arranged in the mounting groove. A supporting frame is arranged at the top end of the moving block, a groove is formed in one side of the supporting frame, a femoral stem needing to be detected is placed at the top of the mounting plate, at the moment, the two-way screw drives the movable frame, the movable frame drives the clamping plates to clamp and fix the two ends of the femoral stem, detection of the femoral stem is facilitated, after clamping is completed, the electric telescopic rod is started, and then the femoral stem is fixed. The electric telescopic rod drives the connecting rod, the connecting rod drives the dial indicator to descend, the bottom end of the measuring head measures the femoral stem, the threaded rod can drive the supporting frame to slide, and therefore the position of the dial indicator is raised, different positions of the femoral stem can be measured conveniently, and the using effect of the device is improved.

The utility model relates to the technical field of optical communication testing, in particular to an insertion loss and return loss testing butt joint tool. Comprising a bottom plate, and a standard line positioning block is arranged on the bottom plate and used for positioning a standard line; a slide rail is arranged on the bottom plate, a slide block is arranged on the slide rail, and a test line positioning block is arranged on the slide block and used for positioning a test line; the slide block slides on the slide rail, so that the test line positioning block moves in the direction close to or away from the standard line positioning block; a mounting groove is formed in the standard line positioning block, and a standard line connector is arranged in the mounting groove; a limiting block is arranged on the standard line positioning block, an elastic piece is arranged on the limiting block, one end, far away from the limiting block, of the elastic piece abuts against the standard line connector, and the limiting block and the standard line connector are matched to release or extrude the elastic piece through sliding of the standard line connector in the mounting groove in the direction close to or far away from the test line positioning block. The method has the advantages that damage to the end face of the workpiece in the insertion loss test is reduced, and the test efficiency is improved.

The utility model belongs to the technical field of papermaking mesh blanket processing equipment, and particularly relates to a weft storage device for papermaking mesh blanket production, which comprises a weft storage device body, a bottom plate is fixedly arranged at the bottom of the weft storage device body, connecting plates are symmetrically arranged below the bottom plate, a U-shaped cover plate is fixedly arranged below the connecting plates, and a first threaded push rod is arranged on one side of the U-shaped cover plate in a threaded manner. A first movable clamping plate is fixedly arranged at one end of the first threaded push rod and located on the inner side of the U-shaped cover plate, a fixed clamping plate is welded to the end, away from the first movable clamping plate, of the inner side of the U-shaped cover plate, and a hinge mounting part is arranged on one side of the U-shaped cover plate and is in threaded connection with a second threaded push rod. A second movable clamping plate is fixedly arranged at one end of the second threaded push rod. According to the weft storage device, the stability and the working efficiency of a traditional weft storage device are greatly improved, the adverse effect of vibration on equipment and product quality is reduced, and a more reliable and efficient solution is provided for the production process.

The utility model provides a well lid missing early warning device which comprises a transmission assembly, when a well lid moves or is lost, a pressure sensor can send a signal to a motor, the transmission assembly is driven by the motor, and therefore a warning lamp of the transmission assembly is exposed to play a warning role. The warning structure on the device can quickly respond to the moving or losing condition of the well lid, warning can be given to pedestrians or vehicles in time, accidents are reduced, meanwhile, the LoRa communication module on the warning lamp can send position information and warning signals to related departments, the related departments can know the specific condition, and the warning effect is improved. If the water level rises in the drainage process in the rainy season, the water level sensor sends a signal to the motor of the water level sensor, so that the position of the warning lamp is further raised, and the warning lamp can still be effectively seen under the condition that the water level rises.

This invention relates to the field of semi-solid-state battery technology, and more particularly to a free radical in-situ polymerization semi-solid-state battery, comprising a protective housing, a top assembly on the top of the protective housing, and a protective cover on the top of the protective cover, with an installation pipe fixedly connected to the top of the protective cover. Through the coordinated use of the protective cover, a fan body, a temperature detector, a relay, a partition plate, and side guards, the fan body, located within the installation pipe, is activated by the relay when the temperature detector detects that the internal temperature exceeds a threshold, accelerating airflow and preventing heat accumulation inside the protective housing. The partition plate more effectively protects the internal batteries and also provides insulation to a certain extent, preventing heat interference between adjacent batteries. The side guards further expand the heat dissipation area, providing strong support for the stable operation of the battery.

This invention relates to the field of tapping equipment technology, specifically a multi-axis synchronous tapping device for clutch stamping parts. It includes a tooling base on which an assembly is mounted. By installing a distance adjustment component on the upper mounting base and slidably connecting a third tapping gear to this component, the radial position of the third tapping gear and the tap can be flexibly adjusted, thereby changing the tapping distribution circle diameter. This allows the device to quickly adapt to clutch stamping parts with different hole specifications, significantly reducing changeover costs. Simultaneously, it employs a full gear transmission layout where one first tapping gear simultaneously meshes with multiple second tapping gears, and each second tapping gear then meshes with a third tapping gear. The transmission chain is short and all parts are rigidly synchronized, completely eliminating vibration problems caused by unequal speeds and expansion / contraction clearances in universal joint transmissions, effectively ensuring the machining accuracy of the threads.

The invention provides a magnetron structure. The magnetron structure comprises a main body part which is provided with an accommodating cavity; the main body part is provided with a plurality of fan blade parts, and the multiple fan blade parts are arranged around the containing cavity at intervals; a resonant cavity is formed in a gap between every two adjacent fan blade parts; the resonant cavity is communicated with the accommodating cavity; the mounting groove is formed in the multiple fan blade parts and communicates with the resonant cavity, so that an annular groove is defined; the diaphragm belt is arranged in the mounting groove; wherein the mounting groove comprises a shallow groove section and a deep groove section, and the depth of the deep groove section is larger than that of the shallow groove section in the extending direction of the containing cavity; at least two shallow groove sections and at least two deep groove sections are arranged, and the shallow groove sections and the deep groove sections are alternately arranged at intervals. Through the technical scheme provided by the invention, the technical problem that the supporting stability of the structure for supporting the diaphragm belt in the magnetron in the prior art is relatively poor can be solved.

The invention discloses a photoelectric sensor system conversion efficiency calibration system and method based on a reverberation chamber, and belongs to the technical field of photoelectric sensor conversion efficiency calibration, the system comprises an electric wave reverberation chamber, a transmitting antenna, a reference antenna and a photoelectric field sensor system; the photoelectric field sensor system is composed of a photoelectric sensor, a laser source, a photoelectric detector, a polarization maintaining optical fiber and a single-mode optical fiber. In the calibration process, the reference antenna and the photoelectric sensor system are used as receiving ends respectively, receiving power at different stirring positions in the reverberation chamber is sampled to obtain two groups of transfer functions, and the total efficiency of the photoelectric sensor system is determined by comparing the two groups of transfer functions under the condition that the radiation efficiency of the reference antenna is known. The conversion efficiency of the photoelectric sensor system is obtained by combining the relation among the power, the field intensity and the total efficiency in the free space; and the effective averaging of the incident direction and the polarization state is realized by using the uniform and isotropic electromagnetic field characteristics of the reverberation chamber.

The utility model relates to the field of automobile brake parts, in particular to an automobile hand brake control mechanism, which comprises a mounting seat fixed on an automobile body floor in a cab and a parking control handle rotatably mounted on the mounting seat. A stay wire guide rail is arranged in the stay wire guide plate, a stay wire is arranged in the stay wire guide rail, the parking control handle comprises a push rod, an operating force applying point is arranged on the push rod, the distance between the operating force applying point and the center point of the stay wire guide plate is L1, the radius of the stay wire guide rail is R1, and the lever ratio L1 / R1 of the parking control handle is 7.25. The problems that at the present stage, when a hand braking control mechanism is used, operation is heavy, and the left-right shaking amount of a hand braking control mechanism assembly is large are solved.

The utility model provides an anticorrosive paint diluting device which comprises a support plate and a support frame, the support frame is arranged on the support plate, a stirring tank is arranged above the support plate, and the stirring tank is clamped on the support frame to form a mounting cavity; a heating pipe is arranged in the mounting cavity, the stirring tank is sleeved with the heating pipe, a heater is arranged on the supporting plate, and the heater is connected with the two ends of the heating pipe through two sets of connecting pipes correspondingly; a cover plate is detachably arranged on the stirring tank, a stirring cavity is formed between the cover plate and the stirring tank, and a stirring assembly is arranged in the stirring cavity. According to the diluting device, a heating pipe is arranged in a mounting cavity and is arranged on a stirring tank in a sleeving manner; and the heater is mounted on the supporting plate, the heater transports heat energy into the heating pipe through the connecting pipe, and the outer wall of the stirring tank can be heated in the stirring process, so that the coating in the stirring tank can be heated. And non-uniform dilution caused by insufficient temperature is avoided, so that the quality and the performance of the coating are greatly improved.

The utility model relates to the technical field of stirring maintenance, in particular to a stirrer easy to store, which comprises a main frame and a vertical cabinet, the bottom end of the vertical cabinet is fixedly mounted on the rear side of the upper surface of the main frame, and two inclined guide rails are symmetrically mounted between the outer wall of the front end of the vertical cabinet and the upper end of the main frame. And an electric control lifting platform is assembled on the inclined guide rail in a sliding manner. According to the stirrer easy to store, the height and the stirring position are adjusted in an inclined lifting mode, so that the stirring mode and the stirring position are greatly improved, and the stirring operation is more diversified; the stirring mechanism is folded and stored after being descended at idle time, and the stirring end can be stored in the stirring mechanism to be closed, so that the durability and the safety of the stirring mechanism are greatly improved.

The application discloses an unmanned aerial vehicle wireless charging coupling system, a coil winding method and an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicle charging. The charging coupling system comprises a transmitting device and a receiving device, the transmitting device comprises a transmitting coil, the receiving device comprises a receiving coil, and further comprises a landing device, the receiving device is arranged on the landing device, and the transmitting device is arranged in a parking area; the transmitting device comprises a ferrite, the ferrite comprises a connecting portion and a stepped symmetrical protruding structure extending outward at the end of the connecting portion, the ferrite as a whole is in a U shape, and the transmitting coil is wound vertically in the U-shaped structure of the ferrite; the receiving device comprises a soft magnet, the receiving coil is wound on both sides of the landing device, a rectangular gap is arranged in the middle of the receiving coil, the soft magnet is arranged in the rectangular gap, and the lower part of the soft magnet is attached to the lower part of the rectangular gap. The coupling system has small space occupation, large coupling coefficient, can realize efficient energy transmission, and is convenient to install and does not affect the flight performance of the unmanned aerial vehicle.

The utility model provides an energy storage confluence cabinet and energy storage equipment, and the energy storage confluence cabinet comprises a cabinet body which is provided with an accommodation space; and the separation assembly is installed in the cabinet body in the horizontal direction and divides the interior of the containing space into a power distribution chamber and a confluence chamber, and forklift holes are further formed in the separation assembly. According to the energy storage confluence cabinet, the forklift hole is formed between the power distribution chamber and the confluence chamber, the position of the forklift hole is raised, the gravity center is more stable when a forklift carries the energy storage confluence cabinet, and safety is high.

The invention discloses an electric power monitoring drone based on laser radar real-time imaging, and relates to the technical field of laser radar drone mapping. The bottom two sides of the machine board are connected with tripods, the outer side of the machine board is circumferentially equidistantly connected with four machine rods, the outer top ends of the four machine rods are connected with propellers through motors, the top of the machine board is equipped with a base, the outer side of the top of the base is connected with an organic box, the top of the base is equipped with a rack rod, the middle of the rack rod is equipped with a sliding sleeve, and the inner side of the sliding sleeve is embedded and movably connected with a sliding body; by arranging the cooperation among the connecting rod, the sliding sleeve and the sliding body, the influence of the shaking of the drone caused by airflow in different directions on the laser radar during mapping is reduced, and the stability is improved; by arranging the cooperation among the connecting rod, the rotating assembly and the compensating assembly, when the drone encounters a large airflow and deflects, the stability during mapping is further improved by compensating the position of the laser radar.

The utility model discloses a high stability's metallurgy bridge crane relates to bridge crane technical field, specifically is a kind of high stability's metallurgy bridge crane, including crossbeam, hoist trolley, cleaning structure and anti-impact top structure, the top of crossbeam is equipped with the track groove for hoist trolley movement, the bottom of hoist trolley is equipped with electric hoist, cleaning structure includes U-shaped plate, limit spring, adjusting block, guide sliding block, pull plate, pressboard, magic tape public post, magic tape female post and cleaning brush. The high stability's metallurgy bridge crane has the effect of conveniently cleaning dust and sundries in guide rail groove, improving the stability of hoist trolley movement, cleaning brush moves with the movement of hoist trolley, conveniently push dust in guide rail groove to the both sides of guide rail groove, facilitate subsequent cleaning, avoid dust and sundries to influence hoist trolley movement, reach the purpose of improving practicality.

The utility model relates to the field of copper wire processing, in particular to a bunching machine for copper wires, which comprises a bunching machine, a support, an adjusting screw rod, a mounting block, a guide rod and a limiting rod, the support is fixedly connected to the front end of the bunching machine, the adjusting screw rod is rotatably connected to the support, the limiting rod is fixedly connected to the support, and the mounting block is connected between the adjusting screw rod and the limiting rod. And two parallel guide rods are rotationally connected to the mounting block. According to the utility model, the position of the guide rod is adjusted by arranging the adjusting screw rod, so that the position adjustment of the guide rod is more free and controllable, and the effect of greatly expanding the position adjustment range of a copper wire is achieved, therefore, before the copper wire is twisted, a user can accurately position the position of the copper wire according to the production requirement of the copper wire, and the production accuracy of the copper wire is improved.

The invention discloses a conveying device for rescue in the cardiology department, and belongs to the technical field of rescue in the cardiology department. In order to solve the problems that an existing product is single in function and very limited in using effect, the following technical scheme is provided that the conveying device comprises a stretcher outer frame, a conveying switching mechanism used for changing the overall height of the conveying device is installed at the bottom of the stretcher outer frame, and a stretcher and seat switching mechanism used for switching a stretcher into a seat is installed in the stretcher outer frame, the conveying switching mechanism is of a left-right and front-back symmetrical structure. The stretcher outer frame serves as the basis of the conveying device, the overall height of the conveying device can be adjusted through the conveying switching mechanism, so that the device is changed into a stretcher lifting state from a pushing state, use in different states is facilitated, and meanwhile, the conveying device is convenient to use. By means of the stretcher seat switching mechanism, the conveying device in the lying state can be converted into a seat structure, and therefore the using effect of the conveying device is improved.

The invention relates to the technical field of anti-infection isolators, and discloses an anti-infection isolator for intensive care medicine, after the position of a partition plate is adjusted, different types of medical wastes fall into different isolation boxes respectively, classification and isolation of the medical wastes are completed, medical staff are prevented from making contact with the medical wastes put in the isolation boxes, safety is improved, and the medical staff can be prevented from being damaged. After the cover plate is opened, the ultraviolet lamp achieves the disinfection and sterilization effects on a cavity between the cover plate and the box body, safety is improved, after the cover plate is opened, the position of the shell is automatically adjusted, automatic covering of the ultraviolet lamp is achieved, on the contrary, after the cover plate is closed, the ultraviolet lamp is automatically leaked out, medical workers can conveniently place medical waste, and the medical waste treatment efficiency is improved. And through cooperative use of the first rod body and the second rod body, when the cover plate is opened, the moving wheels do not make contact with the ground, the situation that when medical waste is discarded, the position of the box body deviates is prevented, and on the contrary, after the cover plate is closed, the moving wheels make contact with the ground, and the position of the box body is conveniently adjusted.

The utility model discloses a high-precision corrosion-resistant carrier for 3C parts. The high-precision corrosion-resistant carrier comprises a bearing plate and a material placing plate, the bearing plate comprises a high-strength metal bearing base body and an anti-corrosion layer, and the outer wall of the bearing base body is integrally connected with an anti-corrosion high polymer material in an injection molding mode to form a film-shaped anti-corrosion layer. The material placing plate is made of corrosion-resistant high polymer materials in an injection molding mode, a plurality of product grooves are formed in the material placing plate in a rectangular array mode, each product groove is internally provided with a limiting column and a positioning hole which are matched with 3C parts, a guide partition strip is arranged between every two adjacent rows of product grooves, and the elastic embracing ring is installed in a containing groove of the bearing plate in an interference mode. The positioning protruding blocks of the material placing plate penetrate through the positioning grooves of the bearing plate in an equal-diameter mode and penetrate through the elastic embracing rings in an interference mode, and the material placing plate and the bearing plate are fixed in a high-precision mode through the positioning pins and the first threaded pieces. The device has the advantages of being suitable for corrosion operation environments, high in 3C product moving and position placing precision and suitable for large-scale continuous production.

The application discloses a method for evaluating the improvement of the high-frequency axial vibration kinetic energy of a drill bit by a rotary percussion tool, and is based on measured wellbore trajectory parameters, drill string structure parameters and rotary percussion tool characteristic parameters, considers different rotary percussion tool installation positions, utilizes a drill string dynamics analysis method to obtain a drill string axial vibration speed, calculates a drill bit high-frequency axial vibration kinetic energy index, and uses the index as an evaluation basis for the improvement degree of the drill bit kinetic energy, and determines a reasonable rotary percussion tool installation position and a working frequency based on the index.

The present disclosure provides a standing posture adjustment method and system for a foot-type inspection robot, which obtains posture information and geometric information of the foot-type inspection robot after the robot stands stably; obtains the initial coordinates of the foot end in the shoulder joint coordinate system based on the acquired posture information and geometric information; obtains the new coordinates of the foot end in the shoulder joint coordinate system by combining the initial coordinates, the amount of trunk posture adjustment, and the distance between the left and right feet, and adjusts the posture according to the new coordinates; the present disclosure improves the final standing position accuracy and angle accuracy through in-situ trunk translation and in-situ trunk twisting after the robot stands stably.

The utility model relates to a conductive cloth attaching and flanging jig, which is characterized by comprising a base, the positioning block is arranged on the base, and a positioning groove used for containing materials to be machined is formed in the positioning block; and the rotating piece comprises a connecting part and a bending part, the connecting part is rotatably connected with the positioning block, the bending part is adjacent to the positioning groove, and the rotating piece can rotate by taking the connecting part of the connecting part and the positioning block as an axis, so that the bending part is turned over. The device has the advantages that the working efficiency is improved, the working intensity is reduced, and the bending and attaching position and the force control consistency of the conductive cloth are improved.

The invention provides an educational toy for infant education based on a mortise and tenon structure, the educational toy comprises a mortise and tenon assembly, the mortise and tenon assembly comprises a plurality of square blocks, a plurality of connecting strips and a plurality of mortise and tenon mechanisms, the outer walls of the plurality of square blocks are uniformly provided with mounting grooves, and the outer walls of the plurality of square blocks are uniformly provided with operation grooves; a connecting strip is inserted into a mounting groove, then a related person moves a U-shaped plate body, the U-shaped plate body drives a clamping block to move into a clamping groove in the connecting strip, the position of the connecting strip can be limited, a semicircular column can be made to move to a limiting groove, and then the related person drives the semicircular column to rotate into the limiting groove through a round rod; therefore, the position of the connecting strip is further enhanced, when the connecting strip is disassembled, only the steps need to be reversely operated, the coordination ability and thinking ability of children are exercised in the assembling process, the assembling stability is enhanced, and disassembling is convenient.

The invention provides a circular pipeline cutting and indenting device and method. The circular pipeline cutting and indenting device comprises a first material carrying platform, a conveying mechanism, a cutting and indenting mechanism and a second material carrying platform. The first material carrying platform can be used for placing a to-be-processed circular pipeline; the cutting and indenting mechanism can be used for cutting and indenting the circular pipeline; the second material carrying platform can be used for placing the processed circular pipeline; the conveying mechanism can be used for conveying the circular pipeline on the first material carrying platform to the cutting and indenting mechanism for cutting and indenting machining, and conveying the machined circular pipeline to the second material carrying platform. Therefore, full-process automatic operation can be achieved, automatic feeding, cutting, indenting and discharging of the circular pipeline are completed, manual carrying and machining are not needed, the labor intensity of workers on a production line can be reduced, the production efficiency can be improved, potential safety hazards can be reduced, the machining precision can be improved, and the production quality can be improved.

The utility model relates to the field of machining tools, in particular to a machining tool capable of improving the location degree of a positioning pin hole, which comprises a bottom plate, a first limiting plate, a second limiting plate and a pressing block are arranged on the bottom plate, the first limiting plate is fixedly connected with the bottom plate, the second limiting plate is parallel to the first limiting plate, and the pressing block is arranged on the bottom plate. The first limiting plate is fixedly connected with the second limiting plate, the distance between the first limiting plate and the second limiting plate can be adjusted, the pressing block is fixedly connected with the first limiting plate and the second limiting plate, and the pressing block is in contact with a key groove of a shaft sleeve needing to be machined. Through the arrangement of the first limiting block, the second limiting block and the pressing block, the shaft sleeve is horizontally machined, inclination caused by thrust of a cutter is avoided, and the position degree of a pin hole is improved; the pressing block is matched with the key groove of the shaft sleeve, so that the parallelism between the connecting line between the pin holes obtained through machining and the key groove is more excellent, and the product quality is improved.

The utility model provides a cleaning machine and a spraying device thereof, and relates to the technical field of cleaning, the spraying device comprises a water supply shaft, a first spraying assembly and a second spraying assembly, the first spraying assembly comprises a first spraying arm and a first storage rack which are installed on the water supply shaft, and the first storage rack is used for placing articles to be cleaned; the first spraying arm is used for spraying cleaning liquid towards the first storage rack; the second spraying assembly is higher than the first spraying assembly, the second spraying assembly comprises a second storage rack detachably mounted on the water supply shaft, and the second storage rack is used for placing articles to be cleaned; the second storage rack comprises a first storage sub-rack and a second storage sub-rack which can be selected, and the first storage sub-rack is provided with an avoiding notch which is used for avoiding the to-be-cleaned articles on the first storage rack. According to the spraying device, the cleaning efficiency can be improved, and the use experience can be improved.