375results about How to "Free and easy to move" patented technology

The invention discloses a high-efficiency agitation device for chemical production. The high-efficiency agitation device comprises an agitation barrel, wherein the left end of the upper side of the agitation barrel is provided with a material feeding hopper; the lower side of the material feeding hopper is connected with an iron removal cavity; an iron removal rotating shaft is horizontally arranged in the center of the interior of the iron removal cavity; the outer wall of the iron removal rotating shaft is provided with permanent magnet sheets in a longitudinal symmetry manner. By using a high-efficiency pre-crushed chemical material agitator, the iron removal can be carried out on a raw material of a chemical material; in an agitation process, the scraping and the washing can be carried out on the chemical material, which is adhered to an inner wall, by a scraping and washing hairbrush; the waste which is caused as the chemical material is adhered to the inner wall is avoided; the material discharge can be carried out when a helical blade positively rotates; the agitation and the mixing can be carried out on the chemical material at a bottom when the helical blade negatively rotates; the agitation effect and efficiency are improved; the automatic and quantitative water addition can be realized; the quality of the material is guaranteed; the effective shock absorption can be realized by a spring pillar; further, the movement is more convenient and quicker; the practicability and the convenience are high.

The invention discloses a law enforcement and case handling system based on the wireless video transmission technology. The law enforcement and case handling system based on the wireless video transmission technology comprises a plurality of mobile control terminals, a wireless access unit, a network switching unit, a central control unit, a decoding unit, an image mosaic processing unit and a display unit. The mobile control terminals are connected with the network switching unit through the wireless access unit to achieve the pairing setting of users on the input-output channels of various types of video signals and the display control operation of the users on image mosaic schemes in a network; the network switching unit is used for receiving the various types of video signals in the network and converting the video signals through the decoding unit into digital high-definition video signals identifiable to the image mosaic processing unit; the display unit is connected with the image mosaic processing unit and used for displaying the image display effects selected by the users in real time. The law enforcement and case handling system based on the wireless video transmission technology can achieve display of multi-channel videos on a large-size high-definition mosaic display screen in various combination modes, improve the screening efficiency and further greatly improve the working efficiency of law enforcement and case handling.

The present invention discloses a roaming method of wireless internet-of-things device based on LoRa. The method comprises the following steps that: a node device sends a network access request to gateways: the node device sends a broadcast message to require communication with all the gateways in a communication range of the node device, the node device obtains an MAC address returned by the gateways, and the node device sends a network access request to the gateways; S2, the node device dynamically obtains the signal intensity indication received by all the gateways in the communication range of the node device: the node device sends the broadcast message in the heartbeat to obtain the signal intensity indication received by all the gateways in the communication range of the node device;and S3, the node device selects connection with a certain gateway according to the signal intensity indication of the gateways. The node device can freely move between the gateways to automatically and seamlessly achieve switching between the gateways so as to greatly improve the motion range of the node device.

The invention provides a complicated three-dimensional model drawing method based on images. Vertexes are uniformity selected from a spherical surface surrounding a model as camera coordinate positions, and a color image and a depth image of the model under a sampling visual angle are obtained by taking a sphere center as a target point of a camera. The method comprises the steps of triangularly dividing the spherical surface according to sampling point coordinates to determine a triangle where a virtual visual angle is located, taking corresponding visual angles as reference visual angles when taking vertexes of the triangle as sampling points, and drawing the model under the virtual visual angle with depth images and color images under the reference visual angles: calculating mapping relationships between the virtual visual angle and pixels in the three reference visual angles respectively with parameters of the reference visual angles, and drawing an image of the virtual visual angle with the appropriate pixels of the reference visual angles or a background pixel by taking the depth images as references, and finally, optimizing the drawn color image. The method can meet real-time requirements and obtains a very true-to-life drawing effect.

The invention relates to the technical field of soil sample screening-grinding equipment, particularly to a soil analysis sample screening-grinding movable all-in-one machine for laboratory analysis. The technical scheme of the machine is that the movable all-in-one machine includes a machine body, a feeding treatment system, a grinding system and a classified screening system, wherein the machine body is formed by a cuboid box body; a feeding treatment system is arranged at the upper part of the side wall of the box body; the classified screening system is positioned at the middle lower part of the box body; the grinding system is positioned at the middle upper part of the box body and is arranged in the middle part. Tests show that the all-in-one machine can one-step pulverize soil into particles not larger than 2 mm in diameter and counting for 85% above, and one-step pulverize soil into particles not larger than 0.15 mm in diameter and counting for 65% above, and the screening yield is 100%. The machine has the advantages that the obtained materials are common, the operation is simple, high quality and efficiency are realized, no pollution to a soil sample is caused, and the result is reliable.

The invention relates to a turbine engine that includes an annular combustion chamber (10), a turbine distributor (12) divided into sectors and arranged at the outlet of the chamber, and a sealing means provided axially between the chamber and the distributor, the sealing means including an axially elastic annular seal (70, 70') comprising an axial bearing means on a downstream end of the chamber and an annular downstream lip divided into sectors, each sector of the downstream lip being aligned with a sector of the distributor and comprising an axial bearing means on an upstream end of the distributor sector.

The invention discloses a compact micro gas turbine, which mainly comprises an air inlet channel, an air compressor, a combustion chamber, a turbine, a shaft system installing body, a shaft and a shell, wherein the air compressor is a single-stage centrifugal air compressor; the combustion chamber is a full ring combustion chamber; the turbine is a single-stage concentric turbine; the air inlet channel is connected with a front flange through a screw; an inner ring of a diffuser and an outer ring of the diffuser are welded on the front flange; the direction of air flow is changed from radial to axial after passing through the diffuser; the shaft system installing body is fixed in the inner ring of the diffuser; the turbine and the shaft are integrally machined; after the turbine shaft penetrates through the shaft system installing body, the air compressor is arranged at the front end of the turbine shaft and is locked through an air compressor wheel locking nut; the rear end of the shaft system installing body is connected with the installing plate of the turbine through screws; the rear end of installing plate of the turbine is fixed with the front end of a guider of the turbine; the combustion chamber is arranged outside the shaft system installing body and axially covers the front half part of the turbine; the direction of the air flow is changed from axial to radical after passing through the combustion chamber; the air flow impacts the turbine through the guider of the turbine; the guider of the turbine, the rear end of the combustion chamber and the shell of the turbine are collectively fixed with a rear flange.

The invention discloses an inspection system for a data center. The inspection system comprises a server, an intelligent terminal and an inspection robot. The intelligent terminal and the inspection robot communicate with the server through network. The intelligent terminal is used for a user to issue control commands to the server. The server generates control orders based on the received controlcommands, and sends the control orders to the inspection robot. The inspection robot enters a data center based on the received control orders, replaces manual collecting inspection data needing to be inspected of the data center, and sends the collected inspection data to the server. The server processes and stores the received inspection data and sends the inspection data to the intelligent terminal. The robot is controlled to replace manual inspecting, and defect of manual inspecting is completely overcome. A video monitoring system and sensors are not required to be mounted in a machine room, and the construction cost and the management cost of the machine room are greatly lowered.

The invention relates to a multilevel sealed medical puncture needle which is mainly suitable for abdominal cavity examinations and an abdominal cavity surgery. Seal rings, straight sealing caps, O-shaped rings and non-resistance seal rings are sequentially arrayed along the center line of an outer tube. After the outer tube is matched with a main body, the outer tube and the main body are sealed through the seal rings, and pressing caps and the main body are welded and then fixed through the straight sealing caps in sealing mode. Clamping caps and the pressing caps are matched and then sealed through the O-shaped seal rings, the pressing caps and the clamping caps are welded and then fixed through the non-resistance seal rings in a sealing mode, and a puncture cone is matched with the outer tube and then sealed through the non-resistance seal rings. Each non-resistance seal ring comprises crumple-shaped thin films and a shooting-type core disc. Each whole non-resistance seal ring is in an integral structure formed in a one-time mode. The multilevel sealed medical puncture outfit is reasonable in design, due to the non-resistance seal rings, the situation that the puncture outfit can move left and right without resistance and not leak when moving front and back in the process of puncturing can be guaranteed, therefore the gas tightness of the puncture needle is guaranteed and the situation that the puncture outfit freely moves in a puncture sleeve is guaranteed.

The invention provides a device and a method for measuring downhole liquid production profile flow and water holding capacity. A motor is connected with a reducer unit through a transmission shaft and a coupler, the coupler is connected with an umbrella closing cup, the upper end of the transmission shaft is fixed through a wire passing plate which is fixed on a flow collection frame, a flow collection umbrella is fixed on the flow collection frame, and a turbine flowmeter, a capacitance sensor, a temperature pressure sensor and a halter are arranged on the upper portion of the flow collection umbrella from bottom to top in sequence. A gap exists between the flow collection umbrella and a sleeve in a well, a flow-split type flow measuring method is used, and a liquid production amount value measured by the turbine flowmeter divides a flow-split coefficient to obtain liquid production amount. The loss caused by untight attachment of the flow collection umbrella and a sleeve tube and the like in a conventional method is avoided, and precision is improved. The capacitance sensor is used for measuring water holding capacity, water in oil-water two-phase flow which contacts insulative dielectric substance materials and an outer shell of the capacitance shell is used as a cathode of the capacitance sensor, sensor structure is simplified, susceptibility is improved, and measuring range of water holding capacity can be 0-100%.

A wireless network for monitoring a patient (10) comprises at least one wearable monitor (12, 70) including a physiological condition sensor (34, 74) coupled to the patient (10) to sense and communicate data related to one physiological function of the patient (10). A first body communication unit (16, 78) interfaces with the at least one wearable monitor (12, 70) to communicate over the patient (10) utilizing a near field capacitive body coupled protocol. A relay system (14, 50 72) includes a second body communication unit (18, 52, 80) that receives data from the at least one wearable monitor (12, 70) and communicates with the first body communication unit (16, 78) utilizing the near field capacitive body coupled protocol. An external communication unit (22) communicates the data to a remote medical monitoring station via a cell phone network or the internet.

An automatically activated wireless code symbol reading system includes a handheld housing having a manually actuated data transfer switch under automatic communication range dependent control. When a barcode symbol is read, the barcode reader is within the predetermined RF data communication range of the system, and then the symbol characteristic data string generated virtually simultaneously with the manual actuation of the data transfer switch is transmitted to the base station via the wireless RF communication link. If the device is out of communication range, an audible and / or visual indication signal is automatically generated and the packed symbology data string is packed and transferred to the data storage buffer on the barcode reader. Then, when the barcode symbol reader moves within the communication range of the system, the buffered / packaged symbol signature data is automatically transmitted to the base station via the RF-based data communication link.

The invention belongs to the technical field of parcel distribution of logistics enterprises, and particularly discloses an omni-directional intelligent rapid sorting unit. The omni-directional intelligent rapid sorting unit comprises a machine frame, a conveying mechanism and driving systems are arranged on the machine frame, the conveying mechanism is formed by uniformly arranging a transverse omni-directional wheel unit and a longitudinal omni-directional wheel unit, the omni-directional wheel unit each is composed of at least one omni-directional wheel, the transversely-arranged omni-directional wheels and the longitudinally-arranged omni-directional wheels are arranged on the same plane, and the driving systems comprise the transverse driving system used for driving the transversely-arranged omni-directional wheels to rotate and the longitudinal driving system used for driving the longitudinally-arranged omni-directional wheels to rotate. The invention further discloses a packagerapid distributing platform. The package rapid distributing platform is formed through splicing by taking the omni-directional intelligent rapid sorting unit as a module. The omni-directional intelligent rapid sorting unit and the package rapid distributing platform have the beneficial effects that the working efficiency and the working reliability of distributing equipment are further improved onthe premise of automation, intelligentization and modularization.

A floor covering with a sound damping function and a preparation method thereof are provided to maximize a sound damping function, an impact absorption, a restoring force and a repulsion elasticity which a conventional PVC floor covering does not have. The synthetic resin floor covering with a sound damping function comprises polyvinyl chloride; and an elastic foaming layer(6) containing a pre-crosslinked acrylonitrile butadiene-vinyl chloride copolymer resin. The synthetic resin floor covering with a sound damping function comprises an elastic foaming layer(6) further containing a modified olefin resin. The synthetic resin floor covering with a sound damping function comprises an elastic foaming layer(6) further containing an ethylene vinyl acetate resin(EVA) or thermoplastic urethane resin(TPU).

The invention belongs to the object high speed water entry experiment field and especially relates to an object multi-angle high-speed water entry experiment device controlled by a high-pressure gas.In the invention, a same set of device satisfies needs of a plurality of experimental work conditions, the highest water entry speed of an object can be 600m / s, and a water entry angle is 0 to 90 degrees. An emission-object bullet holding device is adopted to clamp an emission object, the emission objects with multiple sizes and shapes can be satisfied, and a bullet holding collector and a deflation device are added at a barrel end of an emission device so as to avoid an influence of the high-pressure gas on a water entry moment of the object. An acceleration sensor is installed in the emission object so as to record an acceleration change process of the object during a water entry process. An array light source makes a water entry process shot by a high-speed camera be clearer so as to satisfy high-precision experiments under different working conditions, and good operability and repeatability are possessed. A manual deflation device is installed on a high pressure gas tank so that manual deflation can be performed, which is safe and reliable. A device structure is compact and flexible and an integral occupied space is small.

Disclosed herein is a multi-functional vacuum cleaner, which can be used as a combined vacuum cleaner of a canister type vacuum cleaner which is easy to move and convenient to use when cleaning narrow areas, and of an upright type vacuum cleaner when is easy to use when cleaning wide areas. The vacuum cleaner comprises a body comprising a dust collection unit and a driving unit, a handle part separably connected with the body, and a brush detachably attached to the body to suck foreign matter. The brush supports the body when being attached to the body. The handle part and / or the brush can be independently and detachably attached to the body. Thus, the vacuum cleaner can be freely moved, and used for cleaning narrow areas as well as wide areas.

A method for transmitting 3D visual measurement quantity includes moving visual transducer (VT) to certain position K, placing planar target to shoot target image and to pickup four non-colinear image character points, calculating out quantity transmission transform matrix ( QTTM) from target coordinate system (TCS) ObXbYbZb to video camera coordinate system (SCS ) OCXCYCZC, moving VT to position k+1 and using theodolite to aim four points on target then calculating out QTTM from TCS ObXbTbZb to theodolite CS OtXtYtZt , calculating QTTM from OCXCYCZC to OtXtYtZt of VT at position K and repeating above operation to unify all figures of VT under OtXtYtZt.

The present invention discloses a hollow lofty spun silk and the mixed reeling method thereof. The hollow lofty spun silk comprises a core part and an outer layer outside the core part, and the core part at least comprises part of a middle part formed after core silk which is water-soluble polyvinyl alcohol silk is dissolved out. The mixed reeling method is that: in the silk reeling process of thin silk, a silk through pipe perforating the top and bottom of a silk reeling bath is arranged inside the silk reeling bath; the core silk passes through the silk through pipe; underwater rotor wings rotating alternately and reversely are arranged around the silk through pipe; the underwater rotor wings can cause a reverse water flow alternating slowly, so as to lead cocoon filaments to rotate alternately as well as twine and cover around the core silk. The spun silk of the present invention is lofty and elastic. The novel hollow lofty spun silk can be used to produce tatted goods and knit goods, which have unique elegant luster and hue of the thin silk as well as medium thickness, can be made into outerwear which has the hand feeling with bulkiness and light tactile sensation like wool goods, and also has wrinkle restoring ability as well as dimensional stability.

PROBLEM TO BE SOLVED: To provide a multidirectional input device capable of reducing the size thereof, while retaining the needed size of the rotation radius of a final control element. SOLUTION: By installing a slider 5 and a twisted coil spring 6 to an operating body 4 to mount the body 4 to a lower case 2, the wound portion 6a of the twisted coil spring 6 is provided between a supporting portion 4a of the operating body 4 and the final control element 4B thereof, and also movable contacts 5a3, 5b3 and fixed contacts 11, 14 are provided between the supporting portion 4a of the operating body 4 and the final control element 4B thereof. Consequently, the whole size of the multidirectional input device 1 can be reduced, while retaining the needed rotation radius R of the operating body 4. COPYRIGHT: (C)2005,JPO&NCIPI

The invention discloses a multifunctional hand rehabilitation training rectification device; a finger training four-link mechanism is provided, and comprises a plurality of support poles, a slide block and a column, wherein the slide block is arranged on the column, and driven by a power mechanism to move up and down; each support pole comprises an upper support rod and a lower support rod; the end of each upper support rod is hinged to the top of the column; one end of each the lower support rod is hinged to the middle portion of the upper support rod, and the other end is hinged to the slide block; the top of the column is a palm support portion, and provided with a palm fixing ring; the middle of each upper support rod is provided with a finger fixing ring. The multifunctional hand rehabilitation training rectification device is simple in structure, friendly in price, excellent in performance, can conveniently allow a patient to carry out hand rehabilitation rectification, and the hand function of the patient can be restored for certain level after using the multifunctional hand rehabilitation training rectification device for a period.

The invention provides a stair sweeping robot capable of moving based on Mecanum wheels. The robot is mainly composed of a driving device, lifting devices, a whole support, a sweeping device, a distance sensor and an upper computer system, wherein the lifting device comprises a lifting motor, a lifting motor fixing frame, a coupler, a lead screw, a lifting supporting frame and a bearing, the driving device drives the four Mecanum wheels through four motors independently, the four lifting devices are installed in four lifting guide wheel gaps respectively, the sweeping device is installed on aMecanum wheel supporting frame, and the driving device, the lifting devices, the sweeping device and the distance sensor are all connected to the upper computer system. Flexible movements including advancing, retreating, transverse moving, rotating and other movements in any direction can be completed when the Mecanum wheels do not rotate; through the distance sensor, the environment is sensed, the lifting height and the advancing distance are adjusted, and the sweeping work of stairs of various different sizes can be completed; the robot can also be used for sweeping the ordinary ground.

The invention provides a closed type detachable active protected rescue capsule which comprises an upper hemisphere and a lower hemisphere which is in butt joint with the upper hemisphere, wherein the upper hemisphere comprises at least two upper panels which can be spliced into the hemisphere, and the lower hemisphere comprises at least two lower panels which can be spliced into the hemisphere; the joint of every two of the upper panels and the joint of every two of the lower panels are both provided with a groove, and a sealing strip is fixed in the groove; the joint of the upper hemisphereand the lower hemisphere is provided with a butt joint ring; a door is arranged between the upper hemisphere and the lower hemisphere; both the upper hemisphere and the lower hemisphere are provided with a transverse raised line and a longitudinal raised line; and the transverse raised line and the longitudinal raised line are provided with a plurality of mounting holes for respectively fixing a hand generator, a special oxygen generator, a storage battery, an air purifier, a water pump, an electric cabinet, a communication unit and a detector. The invention is detachable and safe and has thefunctions of convenient carrying, wide applicability and the like.

The present invention provides for a solenoid valve assembly including a housing (32) defining a cavity (34). A support (48) is disposed in the cavity and defines a bore (50). A coil (60) is disposed about the support and defines an energized state for generating a magnetic field and a de-energized state. A plunger (74) is movably disposed in the bore of the support between a first position engaging the housing and a second position spaced from the housing. The plunger is radially spaced from the support to define a gap (76) between the plunger and the support. A dampener (86) is coupled to one of the support and the plunger adjacent the gap to prevent direct engagement between the support and the plunger as the plunger moves between the first and second positions during the energized and de-energized states for reducing noise during operation.

The invention discloses a non-supporting magnetic suspension type omnidirectional 3D printing system and method. The 3D printing system comprises a printing managing control system, a control computer, a printing head adjusting device, a printing head flow speed control device, a printing part cooling device, a printing part suspension device, a printing head assembly and a printing material. Theprinting part suspension device comprises at least one or a plurality of electromagnets, a magnetic suspension principle is used, the magnetism is used for overcoming the gravity, and suspension of aprinting part in a printing space is realized. The printing part suspension device further comprises a printing part position sensor, a weight sensor, a self-stabilizing system, an electromagnet arraycontrol module and an electromagnet array formed by arrangement of the multiple electromagnets; and the printing part suspension device can perform precise control and adjustment on the suspension position and direction of the printing part. The printing head assembly comprises one or a plurality of printing heads, the printing head assembly can spray or deposit the printing material from a plurality of directions towards a printing base piece, and printing of the printing part can be finished at a time.

The invention discloses a flexible wearable sleep physiological parameter detection method and device. Conventional sleep respiration detection is not combined with heart rate and blood oxygen. The flexible wearable sleep physiological parameter detection device comprises a heart rate and blood oxygen detection module, a temperature and moisture detection module and assorted mobile phone terminal software, wherein the heart rate and blood oxygen detection module and the temperature and moisture detection module can support bluetooth 5.0; and the mobile phone terminal software is used for receiving the temperature, the moisture, the reflection infrared light data and the reflection infrared light data, detecting the respiration situation, performing filtering on the reflection infrared light data, performing peak seeking, performing calculation to obtain the heart rate value, performing FFT alternation on the reflection infrared light data and the reflection infrared light data, and obtaining the blood oxygen concentration value combined with a Beer-Lambert Model. The flexible wearable sleep physiological parameter detection method and device disclosed by the invention also support a manner that the data is stored, and the CSV formatted file is transmitted out for secondary research. The flexible wearable sleep physiological parameter detection device disclosed by the invention is integrated on a flexible circuit board, and is stuck to the skin below the nose, so that the wearing is convenient; and the flexible wearable sleep physiological parameter detection device has very low active RF and MCU electric current, is low in power dissipation, and is suitable for long-time monitoring.

The invention relates to a vertical electrochemical battery device for in-situ photodynamic measurement. The device comprises a battery upper cover, a battery lower cover, a quartz optical window, a fixing electrode inner bushing, an electrode part and a conductive connection part. The device is characterized in that the electrode part is composed of a research electrode, a membrane and a counter electrode. The cross sections of the electrodes are parallel to the quartz window. A counter electrode sheet is fixed to an open groove of the fixing electrode inner bushing. The electrode part is arranged between the counter electrode sheet and a research electrode sheet. The counter electrode is arranged on one side of the counter electrode sheet, and the research electrode is arranged on one side of the research electrode sheet. By means of the placement mode of the electrode sheets, the cross sections of the electrode sheets can be observed, in-situ monitoring of the diffusion process of lithium ions and interface conditions of current collectors and substrates is achieved, and the movable electrode sheets can meet substrate and constraint conditions required by different tests.

Provided is a vacuum processing device capable of replacing an alignment mask without exposing the inside of a vacuum chamber to air. A plate (23), into which a substrate lifting and lowering pin (46) and a mask lifting and lowering pin (45) that is longer in a vertical direction than the substrate lifting and lowering pin (46) are inserted, is disposed below a gas introduction device (12). A pin supporting member (24) is disposed below the plate (23). The pin supporting member (24) is structured so that when the distance from the plate (23) is made to be close to a first distance or less, the substrate lifting and lowering pin (46) and the mask lifting and lowering pin (45) can be each vertically mounted on the pin supporting member (24). The substrate lifting and lowering pin (46) and the mask lifting and lowering pin (45) are each provided with a locking member (47). The locking member (47) is used for suspending the substrate lifting and lowering pin (46) and the mask lifting and lowering pin (45) by the plate (23), above the pin supporting member (24), apart from the pin supporting member (24), when the distance between the plate (23) and the pin supporting member (24) is set to a second distance or more having a wider separation than the first distance.

The invention relates to a device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one pressure chamber (23) and a volume accumulator (31), wherein the output element (14) is arranged in a rotatable manner to the drive element (13), and the pressure chamber (23) is bordered at least partially by these components (13, 14), wherein a phase position between the output element (14) and the drive element (13) can be variably adjusted by the pressure medium supply to or pressure medium removal from the pressure chamber (23), wherein pressure medium lines (25a, b, p) are provided by means of which the pressure medium can be supplied to the pressure chamber (23) or removed therefrom, wherein the volume accumulator (31) has at least one housing (32); and a displaceable separating element (33) therein that separates a supply chamber (34), which connects to one of the pressure medium lines (25a, b, p), from a ventilated complementary space (35), wherein the separating element (33) is displaced in the housing (32) by the admission of the pressure medium in the supply chamber (34) in such a way that the volume of the supply chamber (34) increases at the expense of the complementary space (35).

The invention discloses a metal detection robot used in water. The robot comprises a waterproof anti-collision plate, and an inner shell is fixedly mounted in the waterproof anti-collision plate. A sinking and floating cavity with a downward opening is formed in the lower portion of the inner shell. A gear cavity is formed in the left side of the sinking and floating cavity. Leakage-proof blocks with through holes are fixedly installed on the upper end face and the lower end face of the left side of the sinking and floating cavity. A control assembly is arranged in the gear cavity. A belt cavity is formed above the gear cavity. A steering cavity is formed in the right side of the sinking and floating cavity, and a steering assembly is arranged in the steering cavity. The robot is providedwith an ultrasonic transmitter. When the robot moves forwards in water, obstacles in front of the robot can be effectively analyzed and controlled through an analysis controller, and then the robot automatically turns, floats up and sinks to avoid obstacles. A metal detector is arranged below the robot to detect a large number of sinking objects such as metal minerals or sunken ships, and after the sinking objects are found, a water mark can be automatically emitted to guide and lift people outside the water.