498 results about "Protective shield" patented technology

The utility model discloses wood moisture content detection equipment which comprises a detection device body, an anti-skid handle, a screen protective cover, a probe protective cover, a probe sensor, an automatic drilling probe, a detection displayer, a magnetic attraction layer and a power indicator. Two groups of limiting strips are arranged on the two sides of the interior of the screen protective cover, limiting grooves are formed in the left side and the right side of the detection device body, and eight groups of magnetic attraction layers are arranged at the four corners of the left side and the right side of the detection device body. According to the wood moisture content detection equipment disclosed by the utility model, the fragile detection display is conveniently protected and the service life is prolonged through the arranged screen protective cover when the moisture content detection equipment is not used, and the probe is conveniently inserted into wood for detection through the arranged automatic drilling probe; the step that a worker inserts the probe into wood with force can be omitted, and the probe can be prevented from being broken.

The utility model relates to the technical field of water conservancy projects, in particular to a water conservancy project underwater surveying and mapping instrument fixing device. Comprising a transverse plate and an auxiliary assembly, the auxiliary assembly comprises a hanging rod, a mounting plate, a mounting frame, a measuring equipment main body, a protective cover and a locking component, during use, the measuring equipment main body mounted on the mounting frame can measure the density and pressure of water quality in a surveying and mapping area, and safety protection can be achieved through the outer protective cover in the measuring process; the measuring equipment main body is prevented from being impacted externally, so that the safety of the measuring instrument can be protected in the early-stage measurement working process of underwater surveying and mapping, the influence on the detection accuracy and even the damage caused by the impact of aquatic organisms or sundries are avoided, and the safety measurement is facilitated.

The utility model relates to the field of sluice foundation detection, and discloses a sluice foundation subsidence displacement observation device which comprises a base, a stand column fixed in the middle of the top of the base, scale marks engraved on the side wall of the stand column, a connecting seat sleeved on the side wall of the stand column, a pointer fixed at one end of the top of the connecting seat close to the scale marks, and a circular seat fixed at the top end of the stand column. A buzzer is fixed to the top of the circular base, monitoring mechanisms are arranged at the two symmetrical ends of the bottom of the circular base, a transparent protective cover is fixed to the top of the connecting base, a monitoring camera is arranged in the transparent protective cover, and the monitoring camera and the connecting base are fixed. According to the utility model, through the combination of the monitoring mechanism and the monitoring camera, the real-time monitoring of the settlement condition of the sluice base can be realized, continuous image data can be provided, the settlement height of the foundation can be analyzed and recorded conveniently, and when the settlement of the base exceeds a set threshold value, the buzzer gives an alarm sound to remind related personnel to take measures in time, so that the working efficiency is improved. The safety is ensured.

The invention belongs to the technical field of building construction, and discloses a construction dust falling device which comprises a shell and further comprises a protective cover and a middle shaft which are fixedly connected to the top of the shell and the interior of a cavity correspondingly, a spray head assembly is arranged in the shell, and a conveying pipe assembly for conveying water into the spray head assembly is arranged at the bottom of the shell; a direction adjusting mechanism capable of reversely adjusting the spraying direction of the spray head assembly along with the wind direction is installed on the protective cover. According to the scheme, a water source is guided into the spray head body through the conveying pipe assembly and sprayed outwards from the end of the spray head body, so that when the device encounters airflow, the blades can deflect with the spherical part of the sleeve rod as the axis, for example, when the spray head assembly deflects with the middle shaft as the axis, the flow baffles can abut against the corresponding supporting arc plates and make the supporting arc plates deflect, and the airflow is sprayed outwards from the end of the spray head body. And at the moment, the nozzle body can spray a farther distance to resist airflow, so that the effective contact time of water mist and dust is prolonged.

The utility model discloses an experimental tree shrew breeding observation box with a noise reduction structure, which comprises a horizontally placed support base, a protective cover corresponding to the support base is arranged above the support base, an observation window is fixedly arranged on the outer surface of the front side of the protective cover, a lower baffle is fixedly arranged on the upper surface of the support base, and a noise reduction structure is arranged on the lower baffle. The lower end of the protective cover and the lower baffle are mutually clamped, a ventilation net is fixedly installed on the surface of the front side of the lower baffle, a feeder and a water feeding trough which are fixedly installed on the supporting base are arranged on the inner side of the lower baffle, and a light supplementing lamp is fixedly installed on the inner wall of the upper end of the protective cover. According to the experimental tree shrew breeding observation box with the silencing structure, a novel structural design is adopted, air is conveyed into the movable box through an air inlet pump by utilizing a connecting pipe, the air is heated by utilizing an electric heater in the movable box and then conveyed into a protective cover, and the purpose of adjusting the temperature is achieved by matching with a temperature sensor; therefore, different environment conditions can be simulated.

The invention relates to the technical field of surgical instruments, in particular to an operation protection device which comprises a protection cover, an inspection opening formed in the top end of the protection cover and openings formed in the two sides of the protection cover in a penetrating mode. Chain wheel driving rods are rotationally installed on the sides, close to the top ends of the openings, of the protective covers in a penetrating mode, a chain is connected between the chain wheel ends of the two chain wheel driving rods, and through starting operation of a stepping motor and installation cooperation of the chain wheel driving rods and the chain, an isolation mechanism in the openings operates; the lead curtain is driven to descend slowly, so that the side face of the lead curtain and the human body curve are well attached and wrapped, the side edge opening of the protective cover can be isolated and protected by the lead curtain when the protective cover covers and isolates the abdomen of the human body, X-rays cannot be emitted from the side edge opening, light leakage is avoided, and extra harm to the human body is avoided. And the overall protection effect is comprehensive.

The utility model discloses a pneumatic rotary water dirt removal dental mouth mirror, and belongs to the technical field of dental auxiliary instruments. The protective frame is fixed with one end of the handle, the top side of the protective frame is an opening, and the peripheral side is provided with an air inlet; the protective cover is rotationally connected in the protective frame, a sealing cavity is formed in the protective cover, and one side, facing an opening of the protective frame, of the protective cover is of a transparent structure; the mirror surface is coaxially arranged in the sealing cavity and fixed with the protection frame, the mirror surface faces the opening and is parallel to the transparent structure, and a working gap is reserved between the mirror surface and the transparent structure; the peripheral side of the protective cover right faces the air inlet, and when airflow enters the air inlet, the protective cover can rotate. Dynamic waterproof and antifouling effects are achieved through the synergistic effect of centrifugal force and airflow, liquid is effectively prevented from accumulating, flowing or forming a water film on the transparent baffle, and therefore high light transmission and definition of the transparent baffle are maintained to the maximum extent.

The utility model relates to the technical field of ecological restoration, specifically an ecological restoration device, including a base, a mixing barrel fixedly mounted on the top of the base, a transport pipe fixedly connected to the bottom of the mixing barrel, a protective cover provided at the other end of the transport pipe, and a sprinkler plate rotatably connected to the inside of the protective cover. The advantages are: with the assistance of a water pump, the repair liquid inside the mixing barrel can flow to the sprinkler plate through the transport pipe, so that the sprinkler head can directly spray the repair liquid on the soil without rotating the mixing barrel, thereby improving the stability of the device, and the sprinkler plate can drive the sprinkler head to rotate to the inside of the protective cover, so that the splashed soil during the renovation operation will not fall on the sprinkler head and cause the sprinkler head to be blocked, and at the same time, the sprinkler plate can drive the sprinkler head to adjust the angle, so that the sprinkler head can better spray the repair liquid on the soil, thereby improving the practicality of the device.

The utility model discloses a forestry fireproof tree protection device, which belongs to the technical field of forestry fire prevention, aims to solve the problems of poor cohesion and large use limitation of fireproof tree protection devices in the prior art, and comprises two protective covers, the two protective covers are rotatably connected, and arc-shaped connecting seats are fixed at the tops and the bottoms of the two protective covers. The top faces of the two arc-shaped connecting bases located at the upper end are each provided with two positioning holes, and the bottom faces of the two arc-shaped connecting bases located at the lower end are each fixedly provided with two positioning rods matched with the positioning holes. The positioning rods of the protective cover located at the upper end are inserted into the positioning holes of the protective cover located at the lower end, so that the protective covers are in butt joint to increase the height of the protective covers, the clamping rods are pushed to move under the elastic force of the first springs, the limiting blocks penetrate through the rectangular through holes, and therefore the limiting blocks are limited; and the stability between the two protective covers in the vertical height is kept, the application range of the device is enlarged, and the cohesion between the protective covers is improved.

The present invention relates to the technical field of regulating and storage tanks, and discloses an automatic lifting bird-proofing device for regulating and storage tanks and a method for using the device. The device comprises a bird-proofing assembly, comprising: a mounting frame provided on the inner side of the reservoir; a protective cover provided on the top of the mounting frame; a bottom frame provided on the bottom of the mounting frame; through slots symmetrically provided on the top of the bottom frame; a filter hinged on the inner side of the through slots; a collection frame symmetrically provided on the bottom of the bottom frame, and a lifting assembly for lifting the protective cover to collect impurities dropped during the lifting process into the collection frame. The present invention can solve the problem that existing regulating and storage tank bird-proofing devices are inconvenient for cleaning algae or duckweed.

The invention discloses a novel automatic steel pipe cutting device and process. The novel automatic steel pipe cutting device comprises a supporting bottom plate, and a supporting column is arranged at the top of the supporting bottom plate; a lifting frame is vertically and movably arranged on the lifting seat, a first motor is horizontally arranged on the lifting frame, and a saw blade is arranged on an output shaft of the first motor; the first driving mechanism is used for driving the lifting frame to lift; the protective cover is fixedly arranged on the side portion of the lifting base, and a protective groove is formed in the bottom of the protective cover. The pressing shell is connected with the protective cover, and the cross section of an inner cavity of the pressing shell is rectangular; the side wall of the pressing base is movably attached to the inner wall of the pressing shell, a first elastic piece is arranged between the top of the pressing base and the top of the inner wall of the pressing shell, a pressing body is vertically arranged at the bottom of the pressing base, a pressing piece is arranged at the bottom of the pressing body, and when the saw blade cuts a steel pipe located on the two supporting columns, the pressing piece abuts against the top of the steel pipe, and the steel pipe is pressed against the pressing piece. And the first elastic piece is in a compressed state.

The invention discloses a protective device for laboratory experiments, which comprises a shell, a motor is connected to the bottom in the shell, a rotating plate is connected to the upper side of an output shaft of the motor, the rotating plate divides the shell into a laboratory and a mounting cavity, a partition plate is connected to the rotating plate, and the laboratory is divided into a dangerous laboratory and a common laboratory by the partition plate. A first protective cover is connected to an opening of the dangerous laboratory, two operation openings are formed in the first protective cover, and an isolation operation piece is connected to the inner side of each operation opening in a sliding mode. The protective device has the advantages that the rotating plate is driven by the motor to rotate, a dangerous laboratory and a common laboratory can be switched according to the dangerous degree of an experiment, the occupied space of equipment can be reduced, the purchase cost of the equipment can be reduced, multiple purposes are achieved, and when the experiment is carried out through the dangerous laboratory, the experiment efficiency is improved. The outside can be isolated, and operators are prevented from being dangerous by experiments.

The utility model relates to the technical field of gravity type retaining walls, in particular to a gravity type retaining wall structure which comprises a wall body, the wall body is fixedly connected to the top of an embedded part, two tenons are fixedly connected to the bottom of the embedded part, a wall root is arranged at the bottom of the rear side of the embedded part, a guardrail is fixedly connected to the top of the wall body, and the guardrail is fixedly connected to the top of the wall body. The top of the wall root is fixedly connected with an inverted filter layer, the front side of the wall body is provided with a planting assembly and a protective cover, according to the improved retaining wall structure, the protective cover rotates with the connecting shaft as the axis, the protective cover can be opened, then the stress anchor rod is taken out of the wall body to be replaced, and the whole wall body is designed to be inclined backwards, so that the stress anchor rod can be conveniently replaced. And when the wall body is subjected to extrusion force from a rear side hillside, the direction of the extrusion force can be changed, the force direction is transmitted to the direction of the included angle between the wall body and the embedded part, the bearing force of the wall body under the structure is higher, and the borne force is dispersed to the bottom embedded part and the tenon.

The present invention discloses a portable water quality bacteria sampler, which relates to the field of water quality detection, and aims to solve the problem that the existing water quality samplers in the prior art are inconvenient to use and carry. A cylinder is installed above the detection box, a sampling box is installed above the cylinder, a mounting box is installed above the sampling box, a protective cover is installed above the mounting box, a reduction motor is installed inside the protective cover, a rotating drum is installed inside the sampling box, a hose is arranged outside the rotating drum, a connecting pipe is installed on one side of the sampling box, a micro water pump is installed below the rotating drum, a water inlet pipe is installed at the lower end of the sampling box, a fixing buckle is installed on one side of the sampling box, a sleeve is arranged on one side of the connecting pipe, a tower buckle is installed on one side of the detection box, a scale is arranged on the front end surface of the inspection window, and a shoulder strap is installed on one side of the cylinder.

The utility model relates to the technical field of protective covers, and particularly discloses a machine tool protective cover which comprises a protective door, and an observation window is arranged in the center of the front end face of the protective door. A cleaning piece is arranged at the front end of the observation window, and a water tank is fixedly mounted on the front end surface of the protective door below the observation window; a filtering assembly is arranged on the lower portion of the right end of the protective door and comprises a recycling barrel fixedly installed on the lower portion of the right end of the protective door. An RO membrane cylinder is installed in the recycling cylinder, an extrusion part is installed at the position, located at the upper end of the RO membrane cylinder, in the recycling cylinder in a sliding mode, cleaned sewage can be filtered under the cooperation of the extrusion part, the RO membrane cylinder and other structures, and due to the fact that the aperture of an RO membrane is one millionth (0.0001 micrometer) of hair and cannot be seen by naked eyes generally, in the filtering process, the diameter of the RO membrane is smaller than that of the hair, and the diameter of the RO membrane is smaller than that of the hair. Metal particles in the sewage cannot penetrate through the RO membrane, so that the filtering effect can be ensured.

The utility model relates to the technical field of spraying equipment, and discloses a waterproof paint spraying device which comprises a spraying gun, a protection mechanism is arranged outside the spraying gun, a spraying mechanism is arranged on the left side of the spraying gun, the protection mechanism comprises a protection cover, and the inner surface of the protection cover and the outer surface of the spraying gun are installed in a sleeving mode. An insertion rod with one end penetrating and extending into the spray gun is fixedly mounted on the left side of the protective cover, a sleeve with one end penetrating and extending into the insertion rod is slidably mounted in the spray gun, and a threaded rod with one end penetrating and extending into the sleeve is rotatably mounted outside the spray gun. And the outer surface of the threaded rod is in threaded connection with the inner surface of the sleeve. According to the waterproof paint spraying device, by arranging the protection mechanism, the purpose of shielding waterproof paint is achieved, the paint can be prevented from splashing to the hands of an operator during paint spraying, and a hand protection cover can be detached and is convenient to replace.

The utility model relates to a stock layout device of an impact testing machine, which comprises a protective frame, a protective cover is fixedly connected outside the protective frame, an upper bottom plate is arranged at the bottom of the protective cover, a push cylinder is arranged on the upper bottom plate, a fixed tooling block is arranged on one side of the push cylinder, and a fixed tooling block is arranged on the other side of the push cylinder. One side of the fixed tool block is in transmission connection with a propelling screw rod, and one side of the propelling screw rod is fixedly connected with a tool plate; through connection with a belt of a belt disc transmission shaft and guidance of a first bevel gear and a second bevel gear, a propelling screw rod is driven to move forwards until an object to be tested is clamped and the other end of the object to be tested is clamped on a guide column, at the moment, a swinging hammer is started to carry out an impact test on a product, and after the impact test is completed, the propelling screw rod is driven to move forwards. When a product is clamped, the transmission disc moves reversely, the clamped product is loosened, the pushing air cylinder is started, the tested product is pushed out rapidly, the effect of rapidly collecting the tested sample is achieved, and the testing efficiency is improved.

The application provides a sliding wellhead protection system with ventilation function, which comprises a protection cover and a base. The protection cover comprises a protection cover top ring and a protection cover bottom ring. An exhaust unit is arranged in the protection cover top ring. A protection cover support column is connected with the protection cover top ring at the upper end and connected with the protection cover bottom ring at the lower end. The protection cover support columns are connected by a protection cover connecting rod. The front end and the rear end of the protection cover bottom ring are respectively fixed with protection cover wheel sets. The base comprises a base top ring embedded in the ground outside the shaft entrance and a base bottom ring arranged in the shaft and corresponding with the outer diameter of the shaft. A jet fan unit for generating rotating airflow is arranged at the lower side of the protection cover. The inlet of the jet fan is connected with an air inlet penetrating through the protection cover through a flexible air pipe. The protection cover is fixed by the buckle. The flying stones generated during blasting construction are blocked by the protection net. The dust can be quickly discharged by the jet fan unit and the exhaust fan, so that the construction progress is accelerated.

The utility model relates to the technical field of bearing spacer bush installation, in particular to an automatic spacer bush assembling machine with a protective structure, which comprises a moving mechanism, a protective cover is fixedly installed on the top of the moving mechanism, a first adjusting mechanism is fixedly installed on the top of the moving mechanism, and a second adjusting mechanism is fixedly installed on the inner wall of the moving mechanism. And a fixing mechanism is fixedly mounted on one side of the second adjusting mechanism, and a mounting mechanism is fixedly mounted at the top of the moving mechanism. According to the improved automatic spacer bush assembling machine, a T-shaped groove plate, a first T-shaped sliding block, a supporting plate, a first adjusting mechanism and a second adjusting mechanism are adopted, when spacer bushes and bearings are assembled, the spacer bushes can be automatically fed, and meanwhile the spacer bushes with different diameters can be automatically fed; and the fixing mechanism and the mounting mechanism are adopted, so that the spacer bushes with different diameters can be automatically clamped when the spacer bushes and the bearings are assembled, and the spacer bushes and the bearings are automatically assembled.

The utility model discloses a hardness detection device for three-way pipe body production, which comprises a detection table and a positioning mechanism connected to the detection table, the positioning mechanism comprises two pressing plates, two push-pull plates, a fixed column, a connecting block I, a connecting block II, a spring II and a spring III, the pressing plates are movably connected to the detection table, and the push-pull plates are movably connected to the detection table. The two ends of the push-pull plate are connected with the first connecting block and the corresponding pressing plates, the fixing columns are used for guiding the first connecting block and the second connecting block, the two ends of the second spring are connected with the first connecting block and the detection table, the two ends of the third spring are connected with the first connecting block and the second connecting block, and the detection table is connected with a detection mechanism. The detection mechanism is connected with a lifting mechanism used for driving the detection mechanism to ascend and descend, and the lifting mechanism is used for driving the second connecting block to move downwards. According to the utility model, the stability of the workpiece can be improved, the subsequent detection is facilitated, and meanwhile, the protective cover covers the workpiece to protect the detection area, so that the safety of hardness detection is improved.

The surface spraying device comprises a spraying table, a spraying base, a magnet block and a blocking cover, side plates are installed on the left side and the right side of the upper end of the spraying table respectively, a protective cover is fixed between the two side plates, and forward and reverse rotation motors are installed on the left side and the right side of the front end of the protective cover respectively. A plurality of spraying feeding pipes are installed on the front side of the upper end of the protective cover from left to right at equal intervals in a penetrating mode, spraying heads are installed at the lower ends of the spraying feeding pipes, and bearings are installed on the left side and the right side of the front end and the rear end of the interior of the protective cover. According to the automobile lamp plastic part spraying and drying device, a positioning conveying structure is adopted, a plurality of automobile lamp plastic parts can be sprayed and dried, after spraying and drying are completed, the automobile lamp plastic parts can be pushed out of the device, then spraying personnel can take the automobile lamp plastic parts conveniently, the structure is simple, and operation is convenient. Operation is convenient, and popularization and use are convenient.

The utility model discloses a convenient-to-disassemble protective shell for a natural gas compressor unit, which belongs to the technical field of natural gas compressor units and comprises a base, a vertical plate is connected above the base, a protective cover is slidably mounted on the base, the compressor unit is mounted above the base, limiting grooves are formed in two sides of the base, and the vertical plate is connected with the compressor unit through the limiting grooves. Guide grooves are formed in the two sides of the upper portion of the base. According to the convenient-to-disassemble protective shell for the natural gas compressor unit, a worker pulls a connecting plate to move through a pull rod to enable an inserting rod to be separated from an inserting hole and then pushes a protective cover to enable a connecting strip to slide along a guide groove to enable a roller to roll on the ground, so that the compressor unit is exposed, and the worker can conveniently overhaul and maintain the compressor unit; in the assembling process, the protective cover makes contact with the vertical plate, the spring can be compressed when the sliding rod is pulled to move upwards through the pull rod, the inserting rod is inserted into the inserting hole through springback of the spring, then the protective cover is fixed, operation is easy, and a worker can assemble and disassemble the protective cover conveniently.

The utility model discloses an engineering surveying and mapping device based on a remote sensing surveying and mapping technology, which comprises an unmanned aerial vehicle main body, a supporting arm fixedly connected to the outer side of the unmanned aerial vehicle main body, and a surveying and mapping mechanism fixedly connected to the lower side of the unmanned aerial vehicle main body, the surveying and mapping mechanism comprises a mounting box, a protective cover fixedly connected to the front side of the mounting box, and movable grooves arranged on the mounting box on two sides of the protective cover, a driving box is fixedly connected in the mounting box located on the rear side of the movable groove, a rotating shaft is rotationally connected in the driving box, an arc-shaped rod is fixedly connected to the rotating shaft, a driven gear is fixedly connected to the rotating shaft, a servo motor is fixedly connected to the outer side of the driving box, and the output end of the servo motor is located in the driving box and fixedly connected with a driving gear; the driving gear is meshed with the driven gear. Through the above structure, the problems that the remote sensing surveying instrument is affected with damp due to the fact that moisture easily enters the interior during heat dissipation of the equipment, and the surveying accuracy is reduced due to the fact that a lens is easy to fog at a high position are solved.

The embodiment of the application provides a protective cover shed system suitable for an irregular site and a mounting method thereof, the construction site is divided into a plurality of sections according to site conditions, and two groups of supporting columns are respectively arranged in each section according to the topography of the divided section, a cantilever steel support is connected to the inner side of the top of part of the supporting columns, so that the inner side of the top of a plurality of supporting columns in the same group can be located on the same horizontal straight line, a straight line sliding rail is mounted, and two straight line sliding rails are relatively parallel, so that the opening and closing requirements of the dust screen are met. In other words, the application can reasonably arrange the supporting mechanism according to the site conditions, ensure that the dust screen can normally open and close in the case of an irregular site, and meet the covering requirements of the irregular site.

The invention discloses a gas detection port protective cover and a gas detection device, and relates to the technical field of gas detection. The device mainly comprises a sleeve, a filter box, positioning mechanisms and a gas detector, the sleeve movably sleeves a gas inlet pipe orifice of the gas detector, the filter box is fixed at the other end of the sleeve and is used for filtering dust and moisture, the number of the positioning mechanisms is not less than two, and the positioning mechanisms are uniformly distributed on the sleeve. The positioning mechanism comprises a mounting box inserted in the sleeve, a mounting frame is movably arranged in the mounting box, a roller is rotatably mounted on the mounting frame, a first spring is connected between the mounting frame and the inner wall of the mounting box, and the positioning mechanism further comprises a fixing part arranged in the mounting box and used for fixing the roller. The gas detection device is convenient to mount and dismount, the dismounting of the protective cover needs certain operation, the anti-theft performance is improved, dust and moisture in the environment are effectively intercepted and absorbed through the design of the absorbent cotton and the filter plate, and the gas detection accuracy is improved.

The utility model discloses a split external control type loom console housing assembly, which belongs to the technical field of protective housings and comprises a left housing assembly and a right housing assembly. The left side housing assembly comprises a left front housing part and the like; the right side housing assembly comprises a right front housing part and the like; the left front housing part comprises a left front housing A and a left front housing B; the left side housing assembly is detachably mounted on the loom console only through the left front housing A; the control panel and the left front housing part are detachably mounted only through the left front housing B; the right front housing part comprises a right front housing A and a right front housing B; the right housing assembly is detachably mounted on the loom console only through the right front housing A; and the button seat is detachably mounted with the right front housing part only through the right front housing B. According to the utility model, the left front housing part and the right front housing part are connected in a split manner, so that when the housing is damaged due to disassembly, only the corresponding damaged part needs to be replaced, and the later maintenance cost is lower.

According to the technical scheme, the novel riverway root stone detection device comprises a detection mechanism, the detection mechanism is installed on a small ship, the detection mechanism is provided with a plurality of detection heads and comprises a telescopic detection arm, a supporting column is hinged to the bottom of the left end of the telescopic detection arm, and the bottom of the right end of the telescopic detection arm is provided with a supporting rod. The bottom end of the supporting column is detachably connected with a mounting plate, the mounting plate is mounted on a small boat, and an electric push rod is hinged between the telescopic detection arm and the supporting column. The beneficial effects are that the detection mechanism is installed on the small ship, and the small ship carries the detection mechanism on the river surface, so that a wide river channel can be detected; a plurality of detection heads are arranged in the device, so that a relatively large water area can be detected at one time, and the detection efficiency can be improved; the protective cover is arranged on the mounting plate, and the protective cover and the mounting plate together form a spherical surface shape, so that during detection, the device is not easily clamped by sundries in a river channel, and the detection reliability is improved.

The utility model provides a cutting device with adjustable plate cutting depth, which relates to the technical field of cutting device design, and comprises a motor shell, the surface of the motor shell is fixedly connected with a handle, the bottom of the motor shell is provided with a bottom plate, one side of the bottom plate is fixedly connected with a clamping block, a ruler is inserted into the clamping block, and the ruler is fixedly connected with the bottom plate. A cutting blade is arranged on the inner side of the protective cover, a depth clamping plate is rotationally connected to the surface of the bottom plate, a fixing column is arranged in the depth clamping plate, and a clamping column is arranged on the surface of the fixing column. According to the plate cutting machine, by designing structures such as the ruler and the depth clamping plate, the fixing column slides along the sliding groove in the surface of the depth clamping plate, the height difference between the bottom of the cutting piece and the bottom of the bottom plate can be adjusted, and the cutting machine can cut plates with different thicknesses conveniently; the cutting machine can directly measure the distance between a cutting line and the edge of a plate before cutting, and meanwhile the flatness of the cut plate is guaranteed.

The utility model relates to the technical field of underground water level observation, and discloses a hydrogeological exploration underground water level observation device which comprises a water level gauge body and a mounting frame connected to the outer wall of the water level gauge body. According to the water level gauge, the protective cover is arranged on the water level gauge body, the water level gauge body which is not used can be protected by the protective cover, the elastic cushion layer is arranged on the inner side of the protective cover, impact force generated when the protective cover is collided can be effectively absorbed, damage is effectively avoided, and the water level gauge body cannot be accidentally collided and damaged when being carried outdoors; the protective cover is rotationally connected, when the water level gauge body is used, opening and closing can be achieved only in a rotating mode, and operation is easy and practical.

The invention relates to the technical field of medical equipment, and discloses a slicing device for molecular pathology experiments. The cutting table is arranged on the base, and a cutter is arranged on the cutting table; the protective cover is arranged on the base, a first sliding groove is formed in the protective cover, a first sliding block is arranged in the first sliding groove in a sliding fit mode, a first bearing seat is arranged on the first sliding block, a main rod is rotationally matched with the first bearing seat, the first bearing seat does not limit the axial displacement of the main rod, a mounting head is arranged at one end of the main rod, and a wax block is mounted on the mounting head; the main driving mechanism is used for driving the first sliding block to slide back and forth in the first direction. The first driven mechanism is used for driving the main rod to rotate axially when the main rod moves along with the first sliding block; the second driven mechanism is used for driving the main rod to move in the second direction after the main rod reciprocates for one cycle in the first direction, low-loss and high-integrity cutting can be achieved, and the automatic and accurate feeding function is integrated.