227 results about "Protective shield" patented technology

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 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 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 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 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.

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.

The present application relates to the technical field of soil remediation, and particularly discloses a decontamination and separation device and method for uranium-containing contaminated soil based on chemical leaching, which comprises a separation device shell, an inlet cylinder for feeding is arranged in the separation device shell, a leaching liquid mixing box for leaching of the uranium-containing contaminated soil is arranged at the rear side of the inlet cylinder, a turnover plate for digging of the uranium-containing contaminated soil is installed at the front side of the inlet cylinder, a moving wheel for walking is installed at the bottom of the separation device shell, and a protective cover for shielding of the soil is fixed at the front side of the separation device shell. When the turnover plate moves counterclockwise, the soil is scattered by separation teeth, when the turnover plate rotates clockwise, the scattered soil is dug out and thrown to an inlet inclined plate and then enters the inlet cylinder, and the soil is fed by spiral blades in the inlet cylinder, so that the soil does not need to be manually dug, the digging and feeding can be simultaneously performed, and the work efficiency is improved.

The application relates to the technical field of flood-preventing water pumps, in particular to a flood-preventing water pump with intelligent height adjustment and a control method thereof. The application comprises a mounting seat, the bottom of the mounting seat is fixedly connected with a protective cover, the bottom of the mounting seat is liftly installed with a submersible pump body, the bottom of the submersible pump body is fixedly connected with an impeller bin, the two sides of the impeller bin are respectively connected with a water inlet pipe and a water outlet pipe, and the water inlet pipe is connected with a filter assembly and an external pipe. Through the arrangement of the water inlet pipe, the filter assembly and the external pipe, the use range of the device can be effectively improved. When the device is used for drainage work on deep water surfaces such as rivers and reservoirs, impurities such as waterweeds often exist in the device. The filter assembly can effectively prevent the waterweeds from adhering to the outside of the submersible pump body, so that the heat dissipation efficiency of the submersible pump body is prevented from being reduced.

The utility model discloses a protection device of lightning protection grounding detection equipment, which comprises a detection equipment box, the detection equipment box is provided with a protection assembly, the protection assembly comprises a protection cover plate, an observation window, a button, an adjusting hole and a sealing gasket, the protection cover plate is detachably installed on the detection equipment box, and the observation window is detachably installed on the detection equipment box. The observation window is arranged on the protective cover plate, the keys are uniformly arranged on the protective cover plate, the adjusting holes are formed in one sides of the keys, the sealing gasket is arranged on one side of the protective cover plate, the sealing gasket is attached to one end of the detection equipment box, and a relieving assembly is arranged between the detection equipment box and the protective cover plate through a fixing assembly. The removing assembly comprises fixing rods, mounting sleeves and moving sleeves, and the fixing rods are fixedly mounted at the four corners of the detection equipment box, so that the technical problem that in the background technology, a protection device of an existing lightning protection grounding detection device possibly has insufficient sealing performance is solved.

The utility model discloses an airflow direction adjustable axial flow fan which comprises an axial flow fan body, a protective cover is fixedly installed on the inner wall of the axial flow fan body, an assembly plate is fixedly installed at the end of the axial flow fan body, and a machining assembly is arranged on the side, away from the assembly plate, of the axial flow fan body. When the airflow direction of the axial flow fan body needs to be adjusted, adjustment is conducted through an adjusting assembly, when the airflow direction needs to be longitudinally adjusted, a first motor is started, a rotating rod fixedly installed at the output end of the first motor rotates along with the first motor, and a first gear fixedly installed at the end of the rotating rod rotates along with the first motor; due to the fact that a limiting ring fixedly installed at the end of a rotating ring is rotationally connected with the interior of a ring groove, and a gear ring is meshed with a first gear, under the limitation of the limiting ring, the rotating first gear drives the gear ring to rotate, the rotating gear ring drives the rotating ring to rotate, and the rotating ring drives an adjusting assembly fixedly installed on the side, away from the limiting ring, of the rotating ring to integrally rotate; and the airflow direction is integrally adjusted.

The utility model provides a compression-resistant firm iron box, which relates to the technical field of product packaging equipment, and comprises a box body and an iron cover, the top of the box body is fixedly connected with the iron cover through a bolt, the front end of the box body is provided with a protective assembly, and the protective assembly is provided with a protective cover. The protective assembly moves up and down and drives the protective cover to protect the upper end and the lower end of the box body, the protective cover is connected to the box body and the iron cover in a sliding mode, two sets of sliding blocks are driven by restoring force of first springs to slide in sliding grooves in a reset mode, and the sliding blocks drive the protective cover to slide on the box body and the iron cover through rotating rods. The protective cover drives the soft cushion to be attached to the box body or the iron cover, so that the purpose of protecting the upper end and the lower end of the box body is achieved, the structural strength of the box body is improved, pressure is dispersed, the impact resistance is improved, and the compression resistance of the upper end and the lower end of the box body is enhanced.

The application relates to the field of TBM (Tunnel Boring Machine) driving temporary support, in particular to a TBM temporary support extension structure and a using method thereof. In view of the problems of limited support range and low space utilization of the temporary support extension structure in the prior art, the following scheme is provided, which comprises a driving cutter head, a protective shield, a main beam, a first-stage support, a second-stage support, a first telescopic hydraulic cylinder and a second telescopic hydraulic cylinder. The first-stage support is rotationally connected with the protective shield, the second-stage support is slidably assembled on the first-stage support, the first telescopic hydraulic cylinder and the second telescopic hydraulic cylinder are cooperatively matched, the rotation of the first-stage support and the unfolding and contraction actions of the second-stage support are realized, the structure can pass through a narrow space in a contracted state, and a large-area support surface is formed after unfolding, thereby solving the problems of limited support range and poor adaptability of the traditional support. The hydraulic cylinders are cooperatively matched to realize rapid extension and positioning, the application is suitable for complex geological conditions such as mine tunnels, sufficient time is reserved for anchor support operation, and the efficiency of roadway driving is effectively improved.

The invention relates to the technical field of laser measurement, in particular to a portable forest tree diameter at breast height and tree height rapid measuring device for forestry investigation, which comprises a first measuring frame, a second measuring frame and a protective cover, and the end wall of the first measuring frame is hinged with the end wall of the second measuring frame. According to the invention, through the arrangement of the protective cover, after the protective cover is overturned to a state that the first measuring frame is parallel to the end surface of the steering block, the protective cover is pushed, so that the pin on the protective cover is inserted into the storage lock holes in the end parts of the first measuring frame and the steering block; the first measuring frame, the second measuring frame and the steering block which are in a folded state are locked and limited, at the moment, the whole device is stored into a near cuboid shape, the occupied space of the device is greatly reduced, the device is convenient to carry by hand or bag, and the problem that an existing device is inconvenient to carry and inconvenient to carry is solved. Therefore, measuring personnel need to spend a lot of energy to carry the measuring device, and the practicability of the device is improved.

The utility model provides a fire-fighting helmet, which relates to the technical field of fire-fighting equipment, and comprises a helmet main body, two sides of the helmet main body are respectively provided with a hinge block, the outer side of each hinge block is provided with a protective cover, the inner side of the bottom of the helmet main body is respectively provided with a stabilizing seat, and the two stabilizing seats are symmetrically distributed. A penetrating hole is formed in the bottom of each stabilizing seat, and a set of locking assembly is installed on one side of each stabilizing seat. The protective cover and the goggles are arranged on the basis of the fire-fighting helmet, the protective cover can protect the face of a wearer, the protective cover and the goggles cooperate to form a comprehensive protection system for the head and the face, and damage of flames, high temperature, flying chips, harmful chemical substances and the like to firefighters can be effectively resisted; the extension spring enables the goggle structure to be in flexible contact according to different sizes of the head of a wearer, so that the wearing practicability and the protective sealing performance of the goggle structure are improved.

The present application relates to the technical field of soft-spined naked schizothorax breeding, in particular to a water quality and temperature detection device for soft-spined naked schizothorax breeding, which comprises a multifunctional sensor, a depth adjusting member, a protective cover member and an automatic cleaning member. The depth adjusting member is provided with the multifunctional sensor at the lower end. The protective cover member is rotatably connected with the depth adjusting member. The automatic cleaning member is slidably connected with the multifunctional sensor. The depth adjusting member comprises a ring-shaped air bag and a shell. The ring-shaped air bag is fixedly connected with the shell. The device can clean the dirt on the multifunctional sensor in time, realize accurate measurement, measure the temperature and water quality of the whole water area for full water layer profile measurement, timely regulate the local area temperature and find the water quality problem, prevent the multifunctional sensor from being impacted when sinking, ensure the direct contact of the multifunctional sensor with the water area environment, and realize accurate real-time measurement of water quality and water temperature.

Protective covers made of protective material to prevent twisting and kinking of associated apparatus used for clearing obstructions in pipes or other cavities (the apparatus also commonly referred to as drain snakes) are disclosed. The cover bodies encircle the apparatus with an entry opening, closest point to the where the apparatus is coming from when, the apparatus is moving toward the drain, and an exit opening, where the apparatus leaves the protective cover and moves toward or into the part being cleaned, which could be a drain, pipe or other part that material flows through. The entry and exit openings could be a section of the protective cover or they could be a separate attachable part. The protective cover body may have a handle, and may be rigid or flexible, with an option to have accordion like flexibility,

The application discloses a high-precision surveying and mapping equipment of a field collection system, and belongs to the technical field of intelligent field surveying and mapping equipment. The high-precision surveying and mapping equipment comprises a tripod and a Beidou RTK device main body, the tripod comprises a vertical rod, the Beidou RTK device main body is fixed on the vertical rod, and the high-precision surveying and mapping equipment further comprises a winding drum, the winding drum is rotationally arranged on the vertical rod, a plurality of annularly distributed traction ropes are fixed on the winding drum, a ground anchor is detachably arranged at the end, away from the winding drum, of each traction rope, a protective cover is slidably arranged on the vertical rod, and the winding drum can be sleeved in the protective cover, so that the support stability of the Beidou RTK device main body is improved, and the technical effect that the Beidou RTK device main body is prevented from shaking is achieved.

The invention relates to the technical field of soil moisture detection, in particular to a soil moisture detector which comprises a main body plate of a circular ring structure, a rotating protection mechanism is arranged on the inner side face of the main body plate, the rotating protection mechanism comprises a fixing rod rotationally arranged on the inner side face of the main body plate, and a third through hole is formed in the upper end of the fixing rod in a penetrating mode. A pressure meter is fixedly connected to the portion, in the third through hole, of the fixing rod, third containing grooves are symmetrically formed in the lower end of the fixing rod, third electric telescopic rods are fixedly connected to the portions, in the two third containing grooves, of the fixing rod respectively, and a sealing detection mechanism for conducting sealing detection on the third through hole is arranged at the upper end of the fixing rod. The first electric telescopic rod drives the lower end of the protective cover to make contact with the lower end of the argil head, so that soil and multiple holes of the argil head are prevented from being in contact and extrusion in the process that the argil head enters soil, and the argil head is prevented from being blocked.

The invention relates to the technical field of medical instruments, in particular to a photocuring irradiation protective cover capable of adjusting irradiation shapes and used for orthopedic surgery, a fixed top plate is fixedly connected to the tops of fixed side plates, an inner pressure bottom plate is slidably clamped between the two fixed side plates, and a light guide cylinder is fixedly connected to the top of the inner pressure bottom plate; a rotating bottom ring is rotatably connected to the top of the light guide cylinder, a fixed mounting cylinder is fixedly connected to the outer side of the rotating bottom ring, a fixed telescopic block is slidably clamped in the fixed mounting cylinder, a fixed limiting block is fixedly connected to one side of the fixed telescopic block, and a second threaded shaft is rotatably connected to the interior of the fixed limiting block; the protection cover can effectively solve the problem of a traditional protection device in the curing process of a photocuring material in an orthopedic operation, and through the unique design, the protection cover can achieve adjustment of the irradiation shape, so that it is ensured that a curing light source can be accurately matched with the shape of an affected part, the number of adjustment times of the instrument position in the operation process is greatly reduced, and the operation efficiency is improved. And the operation time is effectively shortened.

The invention relates to the technical field of anorectal examination, in particular to a multi-light-source anus inspectoscope device for the anorectal department, which comprises an inspectoscope body, an inspectoscope core, a first mounting cylinder, a second mounting cylinder and a handheld camera, the front end of the inspectoscope body is rolled inwards to form a mounting ring, and an annular groove is formed between the mounting ring and the inner wall of the inspectoscope body; a protective cover is fixedly installed at the rear end of the mirror body, and a first installation shell matched with the first installation cylinder or a second installation shell matched with the second installation cylinder is detachably installed at the rear end of the protective cover. Through multi-light-source layered illumination, a modular installation structure, integrated disinfection and dosing, manual synchronous control and cost optimization design, the comprehensive effects of clear observation, stable installation, convenient operation, efficient disinfection, economy and environmental protection are achieved, and the design not only improves the operation flexibility and safety of doctors, but also reduces the use cost.

This utility model discloses an automatic filling device, belonging to the field of gas cylinder filling technology. It includes a protective frame, an filling mechanism, and a protective structure. The protective frame consists of four columns and a protective cover disposed on its inner side. The protective cover includes a fixed cover, a movable cover, and a sealing frame. The fixed cover is fixedly installed on the inner wall of the columns, and the movable cover is slidably connected to the fixed cover via a drive assembly. The filling mechanism includes a support frame, multiple sets of gas delivery pipes, and a filling pipe connector. The support frame is fixed to the inner top wall of the fixed cover, and the gas delivery pipes are equidistantly arranged on the inner wall of the support frame. This automatic filling device has the following advantages: the movable cover and the fixed cover form a planar seal through a rubber sealing plate, while a three-dimensional seal is achieved by inserting a foundation sealing frame, effectively preventing leakage of hazardous gases. In conjunction with a gas monitoring instrument linked to a fan and an inert gas delivery system, it automatically activates forced exhaust and inert gas explosion suppression in case of leakage, reducing the risk of explosion.

The utility model relates to dust cover technical field, this accordion type broken cone dustproof dust cover, including protection mechanism, protection mechanism sets up on the broken hammer, broken hammer sets up on the small arm, small arm sets up on the big arm, big arm sets up on the excavator main part, the protection mechanism and the excavator main part jointly between being provided with the spraying mechanism, the utility model discloses through the stone and dust that the accordion dust cover of U shape is blocked to the stone residue that broken hammer breaks when, effectively reduced the probability that the stone splashes, and the accordion dust cover adopts U shape design, and the driver observes the broken condition conveniently, and fixed through the square clamp assembly, and the convenient quick installation dismounting, dust cover can realize automatic lifting according to broken hammer working angle, and the protective cover is closely contacted with the rock face, reaches the maximum effect of controlling stone residue splashing, dust cover opens and sets up atomizing nozzle, when broken hammer operation, opens atomizing nozzle water pump, thereby reaches the effect of dustproof dust fall.

The application relates to an optical cable winding machine, which comprises a bottom plate, a protective cover, a winding motor, a take-up roller and a wire arranging mechanism, the winding motor, the take-up roller and the wire arranging mechanism are located in the interior of the protective cover, the protective cover is fixed on the bottom plate, a wire roller support and a motor support are fixed on the bottom plate, the winding motor is fixedly installed on the motor support, the take-up roller is rotatably installed on the wire roller support, a driving sprocket is installed at the output end of the winding motor, a first transmission sprocket and a second transmission sprocket are installed at one end of the take-up roller, a driven sprocket is arranged on the wire arranging mechanism, a first chain is connected between the driving sprocket and the first transmission sprocket, a second chain is connected between the second transmission sprocket and the driven sprocket, an optical slip ring is installed at the other end shaft center of the take-up roller, and an internal wiring port is arranged on the roller body side of the take-up roller.

The utility model provides a high-pressure cleaning machine, and belongs to the technical field of cleaning machines. The problem that in the prior art, a cleaning machine is difficult to stably place when not used is solved. The device comprises a rack, a plunger pump, a driving motor and a high-pressure water gun, a moving wheel assembly is installed at the bottom of the rack, the bottom of the rack extends forwards to form fixing feet, a fixing table body is formed in the middle of the rack, a through groove is formed in the center of the fixing table body, and a protective cover body is installed on the portion, on the periphery of the through groove, of the fixing table body; a fixing block is formed at the upper end of the protective cover, the plunger pump is fixedly installed above the protective cover through the fixing block, a motor end cover is fixed to the upper end of the driving motor, a plurality of fixing columns are fixed to the motor end cover, the other ends of the fixing columns are fixedly connected with the bottom of the plunger pump through through grooves, a motor shaft extends out of the driving motor, and a pump shaft extends out of the bottom of the plunger pump. A coupler is arranged between the motor shaft and the pump shaft, the motor shaft and the pump shaft are connected through the coupler, an installation column is fixedly installed on the rear side of the machine frame, a lower gun stock is installed on the installation column, and a high-pressure water gun is placed in the lower gun stock. The device has the advantages of being stable in structure and convenient to move and place.

The invention provides a visual target device for monitoring large-fall gully surface collapse and a layout method, and relates to the technical field of geological disaster monitoring. The device comprises: a target; a target protection cover, wherein the target is fixedly arranged in the target protection cover; the target protective cover is fixedly arranged at one end of the buffer reset connecting rod; the supporting and fixing platform is arranged at one end, far away from the target protective cover, of the buffering and resetting connecting rod, is used for supporting the target protective cover and is fixed on the earth surface of the large-fall gully; when the target protection cover is impacted by an external disaster source, the buffer reset connecting rod generates elastic deformation to absorb and disperse the impact force, and drives the target protection cover to restore to the original position when the impact is finished. According to the scheme, the continuity, accuracy and reliability of surface collapse dynamic monitoring can be improved.