125results about How to "Avoid lifting" patented technology

The application discloses an icon assembly of a vehicle and the vehicle. The icon assembly comprises a lamp body and a shell, the lamp body is located in the interior of the shell, the shell is a light-transmitting shell, and the icon assembly is fixedly attached to a mounting surface of the vehicle. According to the icon assembly of the vehicle, the icon assembly is fixedly attached to the mounting surface of the vehicle, so that an icon hole with the same size as the icon assembly can be avoided on the mounting surface of the vehicle, when the mounting surface of the vehicle is the surface of a sheet metal part, the problem that the sheet metal part is buckled due to stamping of the icon hole can be avoided, and the vehicle does not need to additionally increase an intermediate part to install the icon assembly, so that the cost of the vehicle is saved.

The utility model discloses an adult paper diaper of replaceable core body belongs to paper diaper technical field, including the trousers body, the waist of trousers body is provided with the fixed part of fixed effect, the inside of trousers body is provided with the core body, the lateral surface of trousers body is evenly provided with a plurality of positioning strips, and the adjacent two positioning strips are parallel to each other, and a plurality of positioning strips are arranged in a straight line, and the both ends of positioning strip are fixedly connected with the lateral surface of trousers body, and the positioning groove is formed between positioning strip and trousers body, and the positioning piece is arranged in a plurality of positioning grooves, and the width of positioning piece is same with positioning groove, and one end of positioning piece is fixedly connected with one end of core body side surface, and the other end of positioning piece is detachably cooperated with the other end of core body side surface, and the first adhesive part is arranged on the side surface of core body, and the first adhesive part is bonded with trousers body, can realize the accuracy of core body and trousers body installation position.

The utility model discloses a swing check valve mechanism, which belongs to the technical field of check valves and comprises a valve body, a valve plate and a side supporting mechanism, the two ends of the valve body are connected with a water inlet pipe and a water outlet pipe, the valve plate is rotatably connected with the inner wall of the valve body through a reset hinge shaft seat, and the side supporting mechanism is used for supporting the two sides of the valve plate. The side supporting mechanism comprises a guide rail and rolling supporting pieces, the guide rail is fixedly arranged on the inner wall of the valve body, and the rolling supporting pieces are installed on the two sides of the valve plate and roll in the guide rail. According to the technical scheme, when the valve plate rotates, the rolling supporting piece synchronously rolls in the guide rail, on the basis of the structural form, sufficient and symmetrical supporting can be provided for the two sides of the valve plate, the abrasion speed of the hinged position of the valve plate is greatly reduced, the situation that the valve plate swings and deviates in the rotating process can be effectively avoided, and the service life of the valve plate is prolonged. And meanwhile, the supporting mode does not influence normal rotation of the valve plate.

The utility model provides a kind of width self-adapting foam tape cutting guide mechanism, including roof frame, still include: baffle wheel, the top end in the roof frame inside is installed by bolt, the both sides of roof frame are fixed with mounting seat, connecting frame, rotatingly connected in the side of roof frame, the bottom end of connecting frame away from the side of roof frame is rotatingly connected with front end plate, positioning structure, it is set in the inside of connecting frame.The utility model, by rotating crank handle to drive two-way screw rod rotation, make two groups of moving block to drive corresponding locating plate movement, adjust the spacing between two groups of locating plate, thus realized the width adjustment function of this device, can flexible adaptation different width specifications foam tape, without complex disassembly can be quickly completed adjustment, can automatically guide tape to keep central posture to convey simultaneously, effectively avoid material deviation, ensure that tape stress is even, position accurate when cutting.

This utility model discloses a disc-lock type scaffolding, relating to the field of scaffolding. The utility model includes four bases and multiple crossbars. Each of the four bases has a stud welded to its top, and the outer wall of the stud is threaded with an adjusting nut. A vertical pole is fitted onto the top of the stud. This utility model incorporates a pin, anti-slip plate, slot, locking plate, slide block, spring, and push block. After the hook is hung on the corresponding crossbar, the worker first pushes the push block, which moves the slide block. The slide block then compresses the spring and moves the locking plate. Next, the anti-slip plate is rotated, causing its inner wall to fit against the outer wall of the crossbar, and the locking plate rotates into the slot. Then, the push block is pushed in the opposite direction, and the spring stretches, causing the slide block to return to its original position. When the locking plate is fully engaged in the slot, the anti-slip plate is locked in place. The anti-slip plate and hook form a ring-shaped engagement on the crossbar, increasing friction and improving the stability of the hook and footboard.

This invention discloses an oil-water-gas well reservoir expansion and sealing jet fluid production and sand removal device, relating to the field of oil production technology. The device includes a central tube and further comprises: an expansion assembly located around the central tube, with its lower end positioned on the central tube and its upper end capable of sliding on the central tube, used for radial expansion under the drive of a hydrodynamic fluid; and a jet nozzle located below the central tube and below the expansion assembly, used to spray hydrodynamic fluid, creating a negative pressure zone in the spray area to absorb formation fluid. This integrated design combines the expansion assembly and the jet nozzle, allowing for the completion of both annular sealing and jet fluid production and sand removal functions in a single well run, avoiding the cumbersome process of two well runs required by traditional technologies and shortening the operation time.

This invention relates to a vacuum extractor that improves extraction performance through a vacuum treatment unit, which improves extraction performance by recovering extracts contained in the air drawn in when a vacuum is generated. The vacuum extractor includes: an extraction chamber for extracting extracts from a raw material using a solvent; a chamber heating unit for heating the extraction chamber with a heat medium to improve extraction performance by heating the raw material; and a vacuum treatment unit for generating a vacuum in the extraction chamber to facilitate extraction of the extract from the raw material, while simultaneously recovering the extracts contained in the drawn-in air using a vacuum pump. The vacuum treatment unit includes: a first cooler for cooling the air and recovering the extracts when a vacuum is generated in the extraction chamber using a vacuum pump; a cyclone tank for generating a cyclone and recovering the extracts contained in the air passing through the first cooler; a second cooler for further cooling the extracts contained in the air passing through the cyclone tank and recovering the extracts; and a recovery tank for storing the extracts recovered from the second cooler.

This utility model discloses a metal processing cutting device with a limiting structure, belonging to the technical field of ceramic material heat treatment devices. It includes a base, with an arm rotatably connected to the top of the base via a rotating shaft. A servo motor is mounted on one side of the arm, and a cutting blade is rotatably mounted on the other side. A cutting groove is formed on the outer surface of the base, and a positioning device is also provided on the outer surface. The positioning device includes two rectangular blocks, with one end of a round rod fixedly connected to a positioning block. This cutting device, by setting up the positioning device and by placing a spring on one side of the positioning block, allows the workpiece to be placed between a rectangular block and the positioning block. The spring pushes the positioning block to quickly adapt to the size and position of the workpiece, and the position of the positioning block is fixed by rotating a threaded ring against the surface of an L-shaped block. This achieves rapid clamping and positioning of the workpiece, improving the efficiency and convenience of using the cutting device.

The utility model discloses a kind of lead frame structures, lead frame unit is arranged to form the lead frame structure in six rows, left and right two columns, the lead frame unit includes: base island, including base island body and protruding setting in the front of base island body chip bearing area;Locking groove, be opened in the chip bearing area, and the locking groove is located at the edge position of the chip bearing area;Pin, bending connection in the side of the base island;Base island connecting rib, connect between two the base island of adjacent upper and lower;Wherein, the chip bearing area is rough surface. Solve the problem that the base island and chip of existing TO-252 lead frame are easy to delaminate.

The utility model relates to the technical field of splitting machines, and discloses an improved efficient splitting machine for composite film processing, which comprises a splitting machine frame and a driving machine, the driving machine is fixedly connected to the outer wall of the front side of the splitting machine frame, an adjusting mechanism is arranged on the splitting machine frame, an auxiliary mechanism is arranged on the splitting machine frame, and the adjusting mechanism is connected with the driving machine. The outer wall of the top of the slitting rack is slidably connected with a lifting rack, the output end of the lifting rack is fixedly connected with a lifting plate, the adjusting mechanism comprises a driving wheel, the driving wheel is fixedly connected to the output end of a driving machine through a coupler, and the driving wheel makes contact with a conveying table. The inner walls of the front side and the rear side of the slitting rack are rotationally connected with driven wheels through bearings. According to the utility model, through the arrangement of the adjusting mechanism, the composite film can be leveled under the cooperation of the pressing wheel and the compression spring, and meanwhile, the roller carrier can carry out secondary pressing on the left side of the composite film under the action of the torsion spring, so that the composite film is effectively prevented from tilting during slitting.

The utility model relates to quick tester technical field, and disclose a kind of multifunctional material hardness quick tester, including tester body, probe and test table, the probe transmission connection is in the bottom of tester body inner wall;The utility model can when needing to detect material, material is placed on test table, then rotates screw block, drives screw rod to rotate inside threaded hole, while screw rod rotates, it will drive pressing plate and rubber pad synchronous downward movement, then pressing plate will be pressed on material, then repeat the above steps, make multiple pressing plate evenly press on material, can effectively avoid the phenomenon that material appears to be raised in subsequent test process, improve the precision of detection, while multiple pressing plate evenly press on material, material can also avoid uneven breaking, prevent material from being raised, improve detection precision and avoid material breaking and multiple functions such as.

The utility model relates to the field of FFC flat wires, in particular to FFC flat wire laser etching equipment which comprises a laser etching workbench used for FFC flat wire laser etching. And the rotating rod is rotationally connected to the front side of the laser etching workbench. According to the FFC flat wire laser etching equipment, through the arrangement of the cleaning mechanism and the dust collection assembly, dust on the surface of an FFC flat wire and residues generated after laser etching can be cleaned, when the FFC flat wire being conveyed passes through the lower side of a soft brush head preferentially, a servo motor switch is turned on, a first lead screw is driven to rotate, and the FFC flat wire is conveyed to the lower side of the soft brush head. A first screw rod rotates to drive an external moving seat and a soft brush head below to move left and right, so that the surface of the FFC is cleaned, dust is prevented from being left on the surface of the FFC, an air pump switch on the rear side of the laser etching workbench is turned on at the moment, the cleaned dust is adsorbed away through a dust suction pipe and a dust suction cover, and the working efficiency is improved. And meanwhile, the dust suction pipe and the dust suction cover on the other side are located on the rear side of laser etching, so that residues on the surface are sucked away through adsorption after laser etching.

This utility model discloses a mechanical extension structure for a sofa, including a base, a drive unit, two bases for mounting the seat cushion structure, and extension units respectively mounted on the two bases. The extension unit includes a leg assembly, a swing mechanism, and a backrest assembly. The swing mechanism includes a front support rod, a middle connecting rod, a rear support rod, a front swing rod assembly, a connecting rod assembly, and a rear swing rod assembly. One end of the front support rod and one end of the rear support rod are respectively hinged to the middle connecting rod, and the other end of the front support rod and the other end of the rear support rod are respectively hinged to the base. The middle connecting rods of the two swing mechanisms are connected by a synchronizing rod. The front swing rod assembly includes a front main swing rod with one end hinged to the base and a front auxiliary swing rod with one end hinged to the middle connecting rod. The front main swing rod and the front auxiliary swing rod are hinged together. The rear swing rod assembly includes a rear main swing rod with one end hinged to the base and a rear auxiliary swing rod with one end hinged to the middle connecting rod. The rear main swing rod and the rear auxiliary swing rod are hinged together. The front swing rod assembly is connected to the rear swing rod assembly through the connecting rod assembly.

The utility model relates to the technical field of cutting devices, and discloses an efficient cutting device for PS profile production, which comprises a device shell, a first motor and a feeding mechanism, the feeding mechanism for conveying PS profiles is arranged in the device shell, the first motor is fixedly connected to the back of the device shell, and the second motor is fixedly connected to the back of the device shell. A first rotating rod is fixedly connected to the output end of the first motor, the sliding block is slidably connected to the interior of the fixing shell, a fixing buckle is fixedly connected to the exterior of the sliding block, a clamping block for clamping the PS plate is arranged on the outer side of the fixing shell, and a second rotating rod is rotatably connected between the clamping block and the fixing buckle; and a third rotating rod is rotationally connected between the clamping block and the fixing buckle. When the cutting device is used for cutting, a plate is clamped by the clamping blocks, so that the stability of the plate in the cutting process is ensured, and the tilting or displacement of the plate caused by the action of cutting force is prevented, therefore, the cutting precision and stability are greatly improved, the product quality is ensured, and the production of PS profiles is more efficient and reliable.

The utility model relates to power module welding technical field, concretely is a kind of power module resistance limit reflow tool, it includes DBC carrier tool, resistance limit board and resistance upper limit cover plate;The surface of the DBC carrier tool is equipped with the placement slot for accommodating DBC substrate, and positioning member is provided on the DBC carrier tool, the utility model realizes the overall location of resistance in X, Y, Z three dimensions by the synergic cooperation of three-layer tool, the limit slot on resistance limit board 3 guarantees the X-Y plane accuracy of resistance on DBC substrate, and the protection column on resistance upper limit cover plate effectively limits the movement of resistance in Z axis direction, fundamentally solves the resistance drop, deviation and monument and other welding defect problems caused by thermal stress in reflow soldering process.

The application relates to an auxiliary tensioning cellar safety net device and relates to the technical field of wine workshop safety protection. The device comprises a cellar, safety nets, a tensioning mechanism and a tensioning belt. Two safety nets are symmetrically arranged above the cellar, and the tensioning mechanism is located between the two safety nets. One end of the tensioning belt is connected with the safety net near the tensioning mechanism, and the other end of the tensioning belt is connected with the tensioning mechanism. The tensioning belts on the two safety nets are symmetrically arranged on the upper side and the lower side of the tensioning mechanism. When the tensioning mechanism is rotated, the tensioning belts on the two safety nets can be synchronously wound and tensioned, so that the two safety nets can be synchronously tensioned or wound and stored. The application can improve the convenience of safety net tensioning and winding.

The utility model discloses a bending device for producing a plastic coaming box, which relates to the technical field of coaming box processing and comprises a main frame body, a plate conveying unit and a positioning and pressing unit. The pressing and folding device is provided with a reliable positioning and pressing and folding unit, an industrial camera determines the next pressing and folding position by recognizing the moving distance of an indentation on a plate, and the extending length of a pressing strip is conveniently adjusted or pressing strips with different widths are replaced by unscrewing a bolt on the side face of a lifting sliding rod so as to adjust the depth and width of a pressing and folding groove; the side edge pressing rods are arranged on the two sides of the lifting sliding rod, when the pressing strips are pressed into the plates, the plates on the two sides of the pressing line can be pressed and fixed, and the plates are prevented from being warped due to stress; the plate bending machine is further provided with the reliable plate conveying unit, the distance between the two conveying clamping frames and the height of a pressing rod can be adjusted conveniently, so that the plate bending machine adapts to plates of different widths and thicknesses, the plates can be heated in the conveying process, and follow-up pressing and bending operation is facilitated.

The invention provides lifting equipment and a component lifting method. The lifting equipment and the component lifting method are used for lifting or lowering components of a wind generating set to a preset height. The lifting equipment comprises a base, a lifting part installed on the base and a connecting piece installed on the lifting part, the lifting part can drive the connecting piece to move up and down, and the connecting piece is used for being connected with the wind generating set component so as to bear the weight of the wind generating set component. And the lifting part can rotate by a preset angle relative to the lifting part under the action of the weight of the wind generating set part. According to the embodiment, the lifting equipment is used for lifting the wind generating set components to replace a crane to lift the wind generating set components, the high-altitude operation risk can be avoided, the large space occupied by the crane is avoided, and the site utilization rate is increased.

The utility model discloses a large-load sucker hook, which relates to the technical field of sucker hooks and comprises a bottom plate, a sucker component is arranged on one side of the bottom plate and consists of a main sucker body and a plurality of small sucker cavities, and the small sucker cavities are arranged inside the main sucker body. A negative pressure component is arranged on one side of the sucker component on the bottom plate; a sliding rail is arranged on the side, away from the suction cup assembly, of the bottom plate, a supporting plate is slidably arranged on the sliding rail of the bottom plate, a hook body is arranged on the supporting plate, and a sliding assembly is arranged between the supporting plate and the bottom plate. The device is compact in structure, high in adsorption capacity, high in adaptability, adjustable in hook, capable of automatically returning, stable in load bearing and suitable for various scenes.

The utility model discloses a kind of landslope anti-landslide structures, including landslope slope body, first concrete dike, second concrete dike and side slope protection net, the upper cement drainage ditch is opened in the top of landslope slope body, the fixed pressing plate is attached to the upper end of side slope protection net, and fixed pressing column for positioning is set on side slope protection net, fixed pressing column is composed of fixed connecting rod, fixed pressing block and anti-escape pin combination.The landslope anti-landslide structure, rainwater on the landslope slope body can be promptly discharged outward, prevent rainwater from causing impact to the soil of landslope slope body surface to cause soil erosion, side slope protection net is laid on landslope slope body, can block the soil on the surface of landslope slope body, fixed pressing plate is combined to side slope protection net and is pressed tightly positioned, it is convenient to the quick installation and fixation of side slope protection net, the two sides of side slope protection net can be effectively prevented and are raised upwards.

The utility model relates to the technical field of wooden door production, in particular to thickened wooden door production equipment which comprises a stamping table, an extension frame fixedly installed on the surface of one side of the stamping table, a cutter movably embedded in the lower surface of the stamping table, and two bidirectional lead screw motors fixedly installed in the extension frame and the stamping table respectively. And the moving assembly is fixedly installed in the stamping table, the grinding assembly is arranged above a two-way lead screw motor, the grinding assembly comprises two second fixing frames, and second motors are fixedly installed on the upper surfaces of the second fixing frames. According to the wood board processing device, wood board raw materials are placed on the surface of the stamping table, the pressing plate moves downwards for pressing, the wood board moves towards one side through rotation of the rolling wheels, the two ends of the wood board are cut in the moving process, then the two sides of the wood board are polished through the polishing wheels, and therefore automatic discharging is achieved, and the wood board is directly processed in the discharging process; and subsequent procedure treatment is replaced, and the wood board treatment efficiency is improved.

The application provides a UV white ink and a preparation method thereof. The preparation raw materials of the UV white ink include, in parts by weight, 3-15 parts of silicone-modified acrylate prepolymer, 30-90 parts of monofunctional monomer, 1-10 parts of bifunctional monomer, 3-10 parts of photoinitiator, 1-15 parts of titanium white, 0.1-5 parts of dispersant and 0.1-5 parts of auxiliary agent. The silicone-modified acrylate prepolymer is used to improve the flexibility, smoothness and water resistance of the ink layer, and the specific functional monomer compound system is used to inhibit the curing shrinkage and enhance the adhesion, so that the UV white ink with excellent comprehensive performance is obtained, and is suitable for the inkjet printing of silica gel labels.

This utility model relates to a labeling device, including a labeling table for fixing a paper roll, a label dispenser for horizontally dispensing labels from its dispensing port to a labeling head, and a labeling head for vacuum-fetching labels from the label dispenser and applying them to the paper roll. The labeling table has a paper roll fixing structure and also includes a robotic arm for moving the labeling head outside the dispensing port to vacuum-fetch labels, moving the labeling head with the labels above the paper roll, and lowering it to apply the labels to the paper roll. The labeling head includes a fixing frame, a linear guide rail, a vacuum plate for upward suction or downward blowing, and a limiting pin. This utility model expands the application range, improves the bonding accuracy, prevents label wrinkles, bubbles, and product damage, and is suitable for automated labeling of various product specifications.

The utility model relates to bamboo fiber processing technical field discloses a bamboo charcoal activation device for bamboo fiber processing, including bamboo charcoal stove, the bamboo charcoal stove inside bottom side fixed mounting support filter plate, the bamboo charcoal stove support filter plate top is connected with a plurality of groups equidistance distribution's gyro wheel, a plurality of groups the gyro wheel between installation has material box, material box one end is installed with docking assembly. The utility model technical scheme through the material box of filling and loading bamboo board is pushed to the bamboo charcoal stove inside bottom side, makes the docking assembly of material box one side installation and the hook of traction mechanism inside butt joint, when driving a group of winch to carry out the winding of pull rope, will carry out the contraction to pull rope, and cooperate with the support ring of limiting slide block and support pull rope, can pull material box along with the horizontal movement of limiting sliding groove direction, until the bamboo charcoal stove inside, avoid the artificial time -consuming and labor -intensive to lift and transport material box to the bamboo charcoal stove inside, has improved work efficiency greatly.

The utility model discloses a hand strap butt joint structure which comprises a hand strap, a steel wire, a reinforcing net and a packing layer. A reinforcing groove is formed in the hand strap, the steel wire is arranged in the reinforcing groove, and the two ends of the hand strap are the head end and the tail end respectively. The head end and the tail end are each provided with a material cutting groove, the reinforcing grooves and the steel wires in the reinforcing grooves can be seen from the bottoms of the material cutting grooves, the steel wires at the head end are connected with the steel wires at the tail end, the reinforcing net covers the connecting positions of the steel wires, and the material cutting grooves in the head end and the tail end are filled with filler layers. The utility model can effectively prevent the steel wire from tilting, prevent the steel wire from penetrating through the hand strap or the packing layer, and simultaneously increase the structural strength of the connecting part of the hand strap.

The utility model provides a medical operating pad, including the waterproof layer of horizontal arrangement, the top of waterproof layer is equipped with the liquid absorption layer, the upper end of liquid absorption layer is equipped with the heating layer, is equipped with a plurality of uniform interval arrangement's liquid storage sac in heating layer, and each liquid storage sac is communicated through the connecting pipe, and the right -hand member of heating layer is equipped with the water inlet pipe, and one end of water inlet pipe is communicated to liquid storage sac, and the outer end of water inlet pipe extends heating layer and can detachably fixed with the sealing cap, and heating layer fills up with water absorption cotton, and the upper end of heating layer is equipped with the non -woven fabric layer. The utility model discloses simple structure, convenient to use.

The present disclosure relates to the technical field of pre-stranding mechanism, and one embodiment of the present disclosure provides a pre-stranding mechanism for a cable stranding machine, which comprises a winding assembly, a tray cover, a reciprocating translation assembly and a steering assembly, the winding assembly is arranged on a base plate and is used for winding the cable after stranding, the tray cover is arranged below the winding assembly and is used for transporting the winding tray after winding, the reciprocating translation assembly is arranged on the side of the base plate, the steering assembly is arranged on the reciprocating translation assembly, and the tray cover is arranged on the steering assembly through a lifting assembly and is used for rotating the winding tray on the tray cover. Through the above technical solution, the technical problem that the staff needs to manually carry the winding tray when one of the winding trays is full and needs to be replaced is solved.

This invention provides an automated window film applicator for packaging boxes, belonging to the technical field of window film applicators for packaging boxes. It includes a conveyor belt, a transfer table on one side of the conveyor belt, and a feeding mechanism, an adhesive applicator, and a window film applicator assembly sequentially arranged along the feeding direction on the top of the conveyor belt. The window film applicator assembly includes a longitudinal linear module mounted on the top of the transfer table. A mounting plate is fixedly connected to the moving end of the longitudinal linear module, and two film applicators are arranged on one side of the mounting plate. This invention designs the film applicators as a structure with a sliding fit between a negative pressure box and a floating box. The bottom of the floating box is connected to a flexible suction plate with distributed micropores. An indentation on the bottom plate of the floating box forms a negative pressure distribution cavity with the negative pressure holes. This design ensures that the negative pressure is evenly distributed across the entire surface of the film, avoiding localized stress concentration caused by point suction cups, reducing problems such as depressions, bulges, and bubbles during film adsorption, and ensuring the flatness and adhesion of the window area.

This invention discloses a roller brush device for cleaning gypsum board surfaces, relating to the field of gypsum board production technology. The device includes a cleaning roller, a slide block, a board frame, a support base, a linear actuator, and a limiting linkage. The cleaning roller is positioned above the gypsum board. The slide block is fitted onto both sides of the cleaning roller's shaft and slides in a groove on the board frame. The board frame is hinged to the support base. The linear actuator drives the board frame to swing around the hinge point, achieving arc-shaped lifting and lowering adjustment of the cleaning roller. The limiting linkage is hinged at both ends to the support base and the slide block, respectively, and, in conjunction with the groove, constrains the slide block's trajectory, ensuring the cleaning roller maintains a consistent contact angle with the gypsum board surface. A motor is fixedly mounted on the support base and drives the cleaning roller to rotate actively via a two-stage belt drive, without synchronously lifting or lowering with the cleaning roller. This invention effectively reduces drive load and energy consumption, provides a stable cleaning angle and high contact accuracy, and is suitable for continuous gypsum board conveying and cleaning operations.

This invention discloses a ship bulwark and a ship including the bulwark. The bulwark includes a bulwark body, a sealing plate, and locking components. The bulwark body is fixedly installed on the side of the ship's open deck and has a notch. The lower side of the sealing plate is hinged to the bulwark body. The sealing plate has a blocked position and an open position. When the sealing plate rotates to the blocked position, it blocks the notch. When the sealing plate rotates to the open position, it is located on the outer side of the bulwark body, and its position is lower than the notch. Both ends of the horizontally rotating sealing plate are detachably connected to the bulwark body via locking components, so that the sealing plate can be held in the blocked position. By setting the vertically rotating sealing plate, the notch can be opened to its maximum size, and the rotating sealing plate cannot be separated from the bulwark body, avoiding the need for hoisting or moving the sealing plate. The locking components allow the sealing plate to be quickly locked in the blocked position without the need to tighten a large number of bolts, greatly improving work efficiency and reducing labor intensity.