179results about How to "Effective cushioning" patented technology

The invention discloses a buffer type nuclear power stop valve suitable for a high-pressure environment, and relates to the technical field of nuclear power stop valves, the side face of a valve body is fixedly connected with a connecting component, and one end of the valve body is fixedly connected with a cleaning component. By means of the structure, the screen plate filters impurities in fluid, the impurities mixed with the fluid are prevented from entering the valve body and scratching the side face of the valve body, meanwhile, the fluid impacts and enters the valve body through the screen plate, the fluid impacts the screen plate, and therefore the fluid is prevented from entering the valve body. The mesh plate drives the ejection mechanism to be far away from the mesh plate through the telescopic rod, meanwhile, through impact force of fluid to the mesh plate, part of impact force is absorbed, impact of the fluid to the valve clack during opening is relieved, and an effective buffering effect can be provided in a high-pressure environment.

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength polypropylene composite material for a filter plate and a preparation method of the high-strength polypropylene composite material. The preparation method of the polypropylene composite material comprises the following steps: uniformly mixing polypropylene, polyimide, maleic anhydride grafted polypropylene, nylon 6, a maleic anhydride grafted styrene-butadiene-styrene copolymer, aminated calcium carbonate, modified glass fiber, an antioxidant and a lubricant according to a mass ratio of 100: (12-18): (2-5): (1-2): (3-5): (3-7): (6-10): (0.2-0.5): (0.1-0.3), carrying out melt blending, extruding, cooling, granulating, and carrying out extrusion molding to obtain the polypropylene composite material. Through the synergistic effect of the nano calcium carbonate and the glass fibers, the mechanical property of polypropylene is improved, all the raw materials are crosslinked to form a uniform network structure, more energy is absorbed when a matrix is impacted by external force, and it is guaranteed that the filter pressing plate is not damaged when deforming under the high-temperature and high-pressure conditions; the obtained polypropylene composite material is high in strength, good in heat resistance and excellent in comprehensive performance.

The utility model discloses a protection plate for logistics conveying equipment, and relates to the technical field of logistics. The conveying device comprises a conveying belt, first supporting mechanisms are fixedly connected to the two sides of the top of the conveying belt, each first supporting mechanism comprises a spring sleeve rod, a sliding frame is slidably connected to one end of each spring sleeve rod, a mounting plate is fixedly connected to one side of each sliding frame, and a damping mechanism is arranged at the bottom of each mounting plate. The damping mechanism comprises a ball groove, a rolling ball is arranged in the ball groove, and a friction plate is arranged between the rolling ball and the ball groove. The position of the damping mechanism can be adaptively adjusted when materials collide with the protection plate, and the damping mechanism effectively buffers and absorbs impact force generated in the material transportation process through interaction of a ball groove, a rolling ball and a friction plate in the damping mechanism.

The invention relates to the technical field of mandarin fish classification, and discloses a weighing platform for mandarin fish classification and distribution, which comprises a conveyor belt rotatably connected with a roller, the roller is rotatably connected with the inner side of a frame, the inner side of the frame is provided with a plurality of sliding bearing plates, the bearing plates tightly press the top of an electronic scale, the electronic scale is fixedly connected with the inner side of the frame, and a visual sensor is arranged above the electronic scale. A rotating shaft of the stepping motor is fixedly connected with a guide plate; one side of the guide plate is provided with a guide slideway; the inner side of the guide slideway is provided with a protection plate; the bottom of the guide slideway is provided with a buffer plate; the bottom plate is fixedly connected with the inner side of the guide slide way, so that the buffer plate can provide an effective buffer effect when mandarin fish slides down, the damage to the fish body caused by the fact that the fish body collides with the inner wall of the storage basket at a high speed is reduced, the risk of fish body injury is reduced, and economic losses are reduced for suppliers.

The invention provides a long-line type power generation 35kV current collection wire and cable laying device and a construction method, and relates to the technical field of wire and cable laying, the long-line type power generation 35kV current collection wire and cable laying device comprises a flat car, a handle is fixedly connected to the flat car, a laying assembly is arranged on the flat car, a cable guide assembly is arranged on the laying assembly, and the laying assembly comprises a first supporting frame. According to the cable winding device, an operator starts the first transmission motor, the output end of the first transmission motor drives the rotating shaft to rotate, the rotating shaft drives the winding roller to rotate, and therefore a cable on the winding roller can be released; afterwards, the cable passes through the guide box, and the cable is stably laid at a preset position by the roller through cooperation of a sliding block, a first telescopic rod, a first telescopic spring and the roller which are arranged on the fixing frame, so that the technical problem that the cable is bent, crossed and overlapped in the laying process is solved.

The invention belongs to the technical field of beam field detection, and aims to solve the problems of complexity and errors during manual line drawing and springback detection in traditional distance measurement. According to the inspection robot for beam field springback detection and the detection method of the inspection robot, the free end of a mechanical arm can move in multiple directions and multiple angles relative to a robot body, and the free end of the mechanical arm is provided with a quick-change main disc; a test area seal in the rebound apparatus test area seal tool is used for stamping a test area pattern at a target position of a concrete surface of a beam structure, and a rebound apparatus of the rebound apparatus tool is used for performing a concrete rebound test at the position where the test area pattern is stamped; the rebound instrument test area seal tool and the rebound instrument tool are both detachably connected with the robot body, quick-change auxiliary discs are arranged on the tools, and any quick-change auxiliary disc and the quick-change main disc can form a quick-change mechanism. According to the device, the rebound detection range and efficiency can be increased, and the complexity and errors caused by manual line drawing and handheld rebound apparatus detection are avoided.

The utility model provides an anti-drop laser range finder, which comprises a laser range finder body, the laser range finder body comprises a shell, a holding assembly, a top protection mechanism and a closed support, the surface of the shell is provided with a display screen, the bottom of the shell is provided with the holding assembly, the bottom of the holding assembly is provided with a bottom plate, and the top protection mechanism is provided with a top protection mechanism. The top of the shell is provided with a top protection mechanism, the inner side of the top protection mechanism is provided with a first spring rod, and the top of the shell is provided with a laser probe. Therefore, the situation that the display screen is damaged due to direct contact with the ground after falling can be effectively avoided, when the top protection mechanism part collides with the ground after falling, the sealing support can be automatically triggered to move synchronously, dust and grit generated after collision are prevented from making contact with the laser probe, and therefore the probability that the laser probe generates scratches is reduced.

The utility model relates to the technical field of electromagnetic shielding cabinets, and discloses an electromagnetic shielding device, which comprises a cabinet body, a front cabinet door, a rear cabinet door, a placement frame, a heat dissipation mechanism, a mounting frame, a buffer assembly and a limiting assembly, and is characterized in that the front side of the cabinet body is hinged with the front cabinet door through a hinge, and the rear side of the cabinet body is hinged with the rear cabinet door through a hinge; the placement frame is fixedly installed in the cabinet body, the heat dissipation mechanisms are arranged on the side faces of the front cabinet door and the rear cabinet door, the left side and the right side of the cabinet body are each provided with an installation frame, the side faces of the installation frames are provided with detachable buffer assemblies, and the limiting assemblies are arranged in the installation frames. And a buffering effect can be achieved, and a worker can replace the buffering assembly conveniently. Once the elasticity of a buffer spring or an air bag of the buffer assembly is weakened, the buffer assembly can be replaced so as to ensure that the buffer assembly can play an effective buffer role and further play a role in protecting electronic equipment in the cabinet.

The utility model discloses an advertisement playing system based on a mobile power supply. The advertisement playing system is characterized by comprising the mobile power supply (40) communicated with a server (20) and mobile power supply leasing equipment, a processing unit (401), a storage unit (402) and a display unit (403) are arranged in the mobile power supply (40), and the processing unit (401) is in communication connection with the server (20) through the remote wireless communication unit (30); the display unit (403) comprises a display screen, the display screen is electrically connected with the processing unit (401), and the display screen is installed on a shell (1) of the mobile power supply (40); the server (20) receives image and / or video data and then transmits the image and / or video data to the mobile power supply (40), and the mobile power supply (40) receives the image and / or video data of the server (20) and stores the image and / or video data in the storage unit (402); and the processing unit (401) sends the processed image and / or video data to the display unit (403) to complete screen playing and display. The mobile power supply solves the problem of single function of the mobile power supply in the prior art.

The utility model discloses a crash pad structure at the two ends of a track of an aluminum alloy sliding door, which comprises the crash pad structure arranged at the two ends of the track of the aluminum alloy sliding door, the crash pad structure comprises a supporting strip and a crash pad main body, and the surfaces of the two sides of the track of the aluminum alloy sliding door are respectively provided with a strip-shaped hole for the supporting strip to insert. The two ends of the supporting strip are inserted into the strip-shaped holes in the two sides of the supporting strip respectively, a clamping and positioning structure is arranged between the supporting strip and the aluminum alloy sliding door track, and the cushion pad body is installed on the surface of one side of the supporting strip. The buffering cushion structures are designed at the two ends of the rail of the aluminum alloy sliding door, so that an effective buffering effect can be achieved when the aluminum alloy sliding door is excessively pushed and pulled, violent collision is prevented, the service life of the whole aluminum alloy sliding door and the rail of the aluminum alloy sliding door is prolonged, and the service life of the aluminum alloy sliding door is prolonged. Meanwhile, the buffering cushion structure has the advantage of being convenient to disassemble, assemble and maintain in the later period, and rapid replacement during follow-up damage is facilitated.

This application relates to a short-circuit detection device for battery cells in a winding machine, belonging to the field of battery cell detection technology. To solve the problem of short-circuited battery cells occupying processing time, it includes a detection mechanism arranged on one side of the cold pressing plate of the winding machine. The detection mechanism includes a support frame, a transverse carrier plate, a lifting drive cylinder, a detection plate body, and a detection probe assembly. The support frame is arranged on one side of the cold pressing plate, the transverse carrier plate is arranged on the support frame, the lifting drive cylinder is vertically connected to the transverse carrier plate, and the piston end of the lifting drive cylinder is connected to the detection plate body. The detection probe assembly includes positive electrode detection probes and negative electrode detection probes, which are distributed on the end face of the detection plate body. The support frame is provided with a transverse movement mechanism for driving the transverse carrier plate. This application effectively ensures that short-circuited battery cells are effectively identified and rejected before hot pressing, preventing short-circuited battery cells from occupying hot pressing equipment time and significantly improving production efficiency.

The application belongs to the field of solar cells. A gap film and a photovoltaic module are provided. The gap film comprises a bonding layer, an insulating layer, a first metal reflection layer, a first reflection structure, a support body and a second metal reflection layer which are sequentially stacked. The gap film of the application effectively improves the front power gain of the photovoltaic module, and has good long-term reliability.

The application provides a linear motor, an actuator and a vehicle, and relates to the technical field of vehicle suspension systems, wherein the linear motor comprises a stator assembly and a mover assembly; the stator assembly is composed of a stator shell and a stator end seat mounted at the open end of the stator shell, a plurality of armature coils are arranged in the side wall of the stator shell in the axial direction, and the stator end seat and the stator shell jointly form a space for accommodating the mover; the mover assembly comprises a mover shell and an axially arranged permanent magnet, the mover shell is partially inserted into the accommodating space and is in sliding connection with the stator shell to realize relative axial movement; a first elastic member is arranged in the accommodating space and is used for providing a buffering and resetting force in the movement process. The application changes the design of the through-type mover assembly, so that the mover shell is only partially inserted into the stator shell, the first elastic member improves the impact resistance and enhances the buffering effect, and the overall structure is more compact and small, and the performance and volume are superior to those of a traditional linear motor.

This utility model relates to the technical field of pipette holders, and discloses a pipette holder including a base. A rotating rod is rotatably connected to the top of the base, and a rotating handle is fixedly connected to the top of the rotating rod. A fixed plate is fixedly connected to the outer top side of the rotating rod. Multiple guide blocks are fixedly connected inside the fixed plate, and protective sleeves are fixedly connected to the bottom of each guide block. A pipette assembly is disposed inside the protective sleeve. A rotating disk is fixedly connected to the bottom of the rotating rod, and multiple slots are formed inside the rotating disk. A fixed ring is fixedly connected to the inner right side of the base, and a sliding groove is formed on the inner bottom side of the fixed ring. With this utility model, users no longer need to search among numerous pipettes; they can quickly rotate the required pipette to a convenient position, greatly saving operation time and improving experimental efficiency.

The utility model discloses a portable wall line drawing tool, which aims to solve the technical problems of high risk and low efficiency in high-altitude line drawing operation in the prior art. The tool mainly comprises an extension module, a sliding module and an extension rod. The core improvement lies in that the extension module is composed of an extension outer box with a sliding groove and an extension inner box sleeve with a sliding groove. By setting a smooth transition groove at the end of the extension inner box, smooth sliding of the sliding module in the full length range of the extension is realized. The sliding module is internally provided with an elastic line drawing module (such as a line drawing roller or a line drawing pen) and a lever type constant pressure ink supply mechanism, which ensures that the line drawing head can adapt to the concave-convex wall surface, keeps the line drawing pressure stable and the ink supply uniform. In addition, the level, laser and continuous scale line are integrated, which assists in rapid and accurate positioning. The utility model can enable the operator to safely complete the continuous and smooth line drawing operation on the high wall surface on the ground, and significantly improves the construction efficiency and quality.

The utility model discloses a kind of mattress edge support structure, it is related to mattress edge support technical field, including a kind of mattress edge support structure, including fabric layer, the bottom of the fabric layer is provided with support plate, the top of the support plate is provided with independent spring, the side of the independent spring is provided with support assembly, the top of the independent spring is provided with filling layer assembly.The mattress edge support structure to solve the problem that mattress edge is easy to collapse after long-term use in the prior art, easy to affect the overall use experience, the present application is independently operated by setting independent spring depending on support plate stress, when human body is pressed on mattress edge, upper support frame rotates around hinge shaft relative to lower support frame, drives connecting strip, fixed block moves, makes spacing baffle extrude buffer spring, uses its elastic deformation to absorb impact energy, damping device provides resistance when buffer spring is stressed to deform, let buffer be more stable, realize the effective buffer and stable support of mattress edge.

The utility model relates to the technical field of computer cases, and discloses a computer case damping and buffering device which comprises a base and a case base, a computer case is arranged in the case base, L-shaped supporting columns are arranged at the four corners of the upper surface of the base, and square sliding rod rings are fixedly connected to the four L-shaped supporting columns. According to the damping and buffering device of the computer case, when the damping and buffering device of the computer case is used, part of the remaining acting force generated when the two sliding sleeves move close to each other can be counteracted through the arranged damping rubber, and when the two sliding sleeves move close to each other, through rotation of the arranged rubber pulleys, the two sliding sleeves move close to each other; and part of the acting force can be counteracted, finally, the acting force transmitted to the L-shaped supporting column and the base is very small, and the problem that the service life of the computer case is shortened due to the fact that the computer case is not provided with an effective multi-directional damping and buffering device is solved.

The invention relates to the technical field of water quality monitoring treatment equipment, in particular to a riverway water quality monitoring device, a buffer mechanism is arranged on the peripheral side of a rotating sleeve on the outer side of a floating seat, the influence of external force such as water flow impact on the device can be effectively relieved, the device is protected against damage, and a supporting plate is arranged on a fixed bottom plate at the top of the floating seat to provide energy for the device; the driving motor in the fixed shell drives the rotating screw rod to rotate, so that the detection mechanism can move up and down along the rotating screw rod to detect water quality at different depths, a sliding seat of the detection mechanism is matched with a guide rod and a contact switch to realize accurate detection, and the damping mechanism is connected with a floating seat and a supporting plate; the influence of external interference on detection is reduced, and the detection accuracy and the equipment stability are ensured.

The utility model discloses a special clamp for carrying pallets, which comprises a robot quick-change assembly, the robot quick-change assembly comprises a quick-change part and a fixing part connected with the quick-change part, and the quick-change part is connected with a robot male head; the buffer frame body assembly comprises a profile frame and a guide shaft, the profile frame is provided with the guide shaft through a flange plate, the two ends of the guide shaft are connected with a spacer bush and a first guide shaft fixing sleeve respectively, and the end, extending out of the spacer bush, of the guide shaft is connected with the fixing part; a spring arranged on the guide shaft in a sleeving mode is arranged between the spacer bush and the first guide shaft fixing sleeve, and a sensor used for detecting the compression amount of the spring is arranged on the flange plate. The structure design is reasonable, manual frequent carrying is replaced, and manual work is liberated; whether pallets need to be carried or not is detected through a sensor, meanwhile, the time node for placing the pallets is detected, the current state is fed back in real time, effective buffering and positioning are conducted in the carrying process, the pallets are automatically grabbed and stacked, manual intervention is reduced, and working safety is improved.

The invention provides a weak surrounding rock vertical shaft pilot shaft protection wall structure and a construction method, and relates to the technical field of building construction.The protection wall structure comprises a well protection module, the well protection module comprises a plurality of axially-connected pipe bodies, the outer diameter of each pipe body is smaller than the inner diameter of a construction pilot shaft, and the adjacent pipe bodies are detachably connected; the concrete backfilling module is filled between the well protection module and the inner wall of the construction pilot well; and the lower end of the construction pilot shaft is provided with an underground adit in a communicating mode, the supporting platform is installed in the underground adit, and the top end of the supporting platform is connected with the pipe body located at the lowermost portion. Compared with the prior art, the problem that the pilot shaft wall is prone to damage during pilot shaft construction can be effectively solved.

This invention discloses an anti-shock hydraulic closed-loop pump control system and hydraulic machinery. The anti-shock hydraulic closed-loop pump control system includes a closed-loop pump assembly and a power component, as well as two anti-shock valve assemblies arranged in parallel with the power component. The inlet of one anti-shock valve assembly is connected to the first end of the power component, and the inlet of the other anti-shock valve assembly is connected to the second end of the power component. Each anti-shock valve assembly includes an externally controlled buffer valve, a buffer damper, and an accumulator. The externally controlled buffer valve has a feedback end and a control end on opposite sides of its valve core. The control end has a spring for driving the valve core to move and close towards the feedback end. The inlet of the externally controlled buffer valve has a feedback oil circuit connected to the feedback end and a control oil circuit connected to the control end. The buffer damper and the accumulator are sequentially arranged on the control oil circuit. The anti-shock hydraulic closed-loop pump control system provided by this invention can reduce pressure shocks on the high-pressure side of the oil circuit and prevent rapid pressure drops on the low-pressure side of the oil circuit.

The present invention discloses an N-type continuous folding water-falling silencer, comprising a frame body and a silencer grid assembly, wherein the silencer grid assembly comprises an upper support, a grid and a lower support, wherein the upper support is connected to the lower support through the grid, wherein the frame body comprises an upper frame, a connecting portion and a lower frame, wherein the upper frame is connected to the lower frame through the connecting portion, wherein the upper support is connected to the upper frame, and wherein the lower support is connected to the lower frame. The present invention adopts an N-type continuous folding grid, which has a simple structure, can effectively buffer and decelerate the falling water of a cooling tower, can greatly reduce the falling water noise, is easy to implement in engineering, and has low maintenance cost.

The invention relates to a fixing device for medical experiment animals, and belongs to the technical field of medical experiment instruments. In order to solve the problems that an existing restraining device for experimental animals is low in automation degree and causes compression during restraining, an operation table is arranged, a body restraining mechanism, four-limb restraining mechanisms and a buffering mechanism are arranged on the operation table, and the body restraining mechanism is arranged in the middle of the operation table and movably connected with the operation table; the four-limb restraining mechanisms are symmetrically arranged at the two ends of the body restraining mechanism in the length direction of the body restraining mechanism, and the buffering mechanism is located on the operation table and connected with the body restraining mechanism. The design of the elastic bandages and the binding belts is adopted, meanwhile, the buffering effect of the air bag cushion is matched, excessive compression or injury generated when the body and the four limbs of the experimental animal are restrained is effectively reduced, automatic operation is achieved through the driver, the driver is used for driving the adjusting plate to move downwards, and the operation is convenient. The body and the four limbs of the test animal can be restrained synchronously, and the restraining efficiency of the test animal is effectively improved.

The utility model aims to provide the pressure release valve device for preventing rebound impact of the nitrogen cylinder, and the pressure release valve device can effectively buffer gas discharged by high-speed flowing during pressure release, so that the stop block or the plug part is prevented from colliding with the valve body and being damaged under the action of strong impact generated in the pressure release process. The device comprises a main valve body, a hollow control cavity is formed in the main valve body, meanwhile, an air inlet and an air outlet for compressed air to enter are further formed in the main valve body, and the air inlet and the air outlet are communicated with the control cavity; an electromagnetic type sealing pressure control mechanism is arranged in the control cavity, and the electromagnetic type sealing pressure control mechanism further comprises a collision buffering assembly used for achieving the protection effect when the electromagnetic type sealing pressure control mechanism fails instantly.

The utility model discloses a modularization aviation part packing structure, including the outer packing box, the outer packing box inside evenly is equipped with a plurality of inner packing box, the inner packing box is placed by layer from top to bottom to the middle part of inner side of outer packing box is equipped with a plurality of limit post, and the limit post will transverse inner packing box be limited and divide, the inner packing box top opening is equipped with the box cover, the inner packing box bottom all is connected with a plurality of damping shock absorber, the outer packing box top opening installs the box cover, and the box cover and outer packing box are linked through the connecting screw rod. The utility model discloses a plurality of inner packing boxes are arranged in the outer packing box, and the inner packing box can store parts separately, and the inner packing box is internally provided with shock attenuation sponge, and the parts in the inner packing box can be effectively damped and buffered through the shock attenuation sponge, and the inner packing box bottom all is equipped with the damping shock absorber, and the damping shock absorber can effectively buffer the vibration received by the inner packing box.

The utility model discloses a sample bottle storage box which comprises a box body, the box body comprises a shell and a box cover, the shell is rotationally connected with the box cover, and the box cover is matched with the shell; a storage box is fixed in the shell; symmetrical storage plates are arranged on the upper side of the storage box, each storage plate comprises a square supporting groove and a supporting plate, the supporting plates are arranged in the square supporting grooves, a plurality of evenly-distributed storage grooves are formed in the supporting plates, the supporting plates are foamed plastic plates and have elasticity, after sample bottles are placed in the storage box, the foamed plastic layers generate elastic deformation, and the sample bottles are stored in the storage box. The placed sample bottles can be limited and buffered; the rear end of each storage plate is connected with the shell through a swing connecting assembly. The utility model relates to the technical field of sample storage and transportation, in particular to a sample bottle storage box which can effectively limit and buffer sample bottles and reduce collision in the transportation process through the design of a built-in supporting plate and a square supporting groove.

The utility model relates to the field of medical instruments and equipment, in particular to a special moving device for a vertebral brittle fracture patient, which comprises a bed frame and a bed board, the bed frame is an assembly carrier of the moving device, the bed frame is a frame body with a slot in the middle, the bed board is assembled at the slot of the bed frame, and the bed board is arranged on the bed frame. Universal wheels are rotationally mounted at four corners of the bottom surface of the bed frame, and a brake part is arranged in each universal wheel; the bed further comprises guide rods and the like, two rows of symmetrically distributed guide rods are fixedly connected to the bottom face of the bed board, a plurality of guide rods are arranged in each row at intervals, and the bed board penetrates through the bed frame in a sliding mode through the guide rods and is connected to the bed frame. The lumbar vertebra cushion is arranged, the position of the lumbar vertebra cushion can be adjusted through the sliding rails, necessary support and stability are provided for the lumbar vertebra of a patient, the requirements of different patients are met, the multiple sets of damping springs are arranged between the bed frame and the bed plate, the effective damping and buffering effects can be provided in the moving process, and discomfort or injury caused by vibration to the patient is reduced.

The invention discloses a quartz crystal resonator aging system, which relates to the technical field of quartz crystal resonator production equipment, and comprises an aging box and a control box arranged on one side of the aging box, wherein an aging chamber is arranged in the aging box, and an air blowing unit and a heating unit are arranged in the aging box, which are used to input hot air into the aging chamber, and an air inlet channel and an air return channel are arranged on the left and right sides of the aging chamber, respectively, and the system further comprises an air collecting component, a partition component and a placement component; the invention divides the aging chamber into a plurality of independent chambers through the arrangement of the air collecting component, the partition component, the placement component and the shock absorbing component, and adjusts the form of the side air outlet, so that the temperature of the quartz crystal resonator on each sample tray is more uniform without moving the sample tray, thereby avoiding the problem that the temperature of the quartz crystal resonator near the air outlet is higher.

The utility model provides a guide device for enhancement and release. The guide device comprises a supporting seat, a winding structure and a guide groove, the winding structure comprises a winding roller rotationally erected on the supporting base, an air cavity is formed in the winding roller, a first supporting shaft at one end of the winding roller is of a hollow structure and communicates with the air cavity, a switch valve is installed at the end of the first supporting shaft, and a hand wheel is installed at the end of a second supporting shaft at the other end of the winding roller. The guide groove comprises long-strip rectangular base cloth, an air bag is fixedly sewn on the base cloth, the air bag is of a U-shaped structure, and the U-shaped opening end of the air bag extends to the end of the base cloth; the other end of the base cloth is fixedly mounted on the rolling structure; the air bag is communicated with the air cavity; the device is novel in structure, an inflatable structure is adopted, an effective buffering effect can be provided, impact damage to fish and shrimp seeds is avoided, and the survival rate is increased; and moreover, unfolding and storage can be realized in an unwinding mode, the operation is simple, and the use is convenient.