66results about How to "Avoid getting stuck" patented technology

The utility model relates to a cleaning robot and a cleaning system. The cleaning robot comprises a body and a lifting mechanism, and the lifting mechanism is arranged on the body and used for driving at least one side of the body to be lifted. The lifting mechanism comprises at least two walking assemblies, a transmission assembly and a driving assembly, each walking assembly comprises a wheel shell and a wheel rotationally arranged on the wheel shell, the wheel shells are connected with the body, the transmission assembly is connected with the at least two wheel shells, and the driving assembly is connected with the transmission assembly. In the process that the driving assembly drives the transmission assembly to move from the first position to the second position, the transmission assembly applies acting force facing the target face to at least one of the at least two wheel shells, so that the first side of the body is driven to be lifted relative to the target face when the at least two wheel bodies are supported on the target face. The cleaning robot in the embodiment of the utility model can autonomously get out of trouble and pass through the obstacle through the lifting mechanism, a user does not need to frequently intervene manually, and the use experience of the user is improved.

This utility model relates to the field of steel door technology and discloses a safety protection structure for preventing hand pinching in steel cleanroom doors. The structure includes a door frame, a support frame fixedly connected to the top of the door frame, a motor fixedly connected inside the support frame, an elliptical wheel fixedly connected to the drive end of the motor, a sliding shaft fixedly connected to the top of the elliptical wheel, a connecting rod slidably connected to the outer wall of the sliding shaft, a fixed shaft rotatably connected to the inner wall of the connecting rod, a rotating block fixedly connected to the outer wall of the fixed shaft, and a rotating shaft rotatably connected to the top of the rotating block. In this utility model, an infrared sensor controls the motor to drive the elliptical wheel to rotate, stopping the cleanroom door from rotating and causing it to rotate outwards. When an object moves away from the vicinity of the cleanroom door, the motor reverses, the sliding shaft slides to the end of the groove, and the connecting rod drives the rotating block to reset, achieving the anti-pinch function. This structure also provides safety protection; even when the door is stopped, it can still rotate in the opposite direction to prevent objects from getting stuck, thus improving the protection level.

The utility model relates to the technical field of house construction, and discloses a gravel screening device for house construction engineering, which comprises a box body, and a screening device is arranged on the box body. According to the gravel screening device for the house building project, by arranging a first motor, a rolling wheel, a cam, a first filter screen, a connecting rod, a mounting plate, a second filter screen, a material guide plate, a fixing plate, a spring, a sliding rod and a partition plate, when the device is used, gravel is screened through the first filter screen and the second filter screen, and after the first motor is started, the rolling wheel collides with the mounting plate; the mounting plate vibrates up and down by utilizing the tension of the spring to prevent the filter screen from being blocked, and the spring is protected by utilizing the partition plate to prevent gravel from clamping the interior of the spring; a second motor, a discharging plate, a supporting frame and a spiral conveying plate are arranged, the second motor is started, and the spiral conveying plate drives gravel to be discharged; and by arranging the baffle and the adjusting lead screw, the distance between the baffle and the discharging plate is adjusted by rotating the adjusting lead screw, and the discharging speed is controlled.

The application relates to the technical field of waste tire treatment, and discloses a waste tire recycling treatment equipment, which comprises a fixed base, a disc for placing waste tires is rotationally arranged on the fixed base, a positioning frame capable of ascending and descending is arranged above the disc, a cutting knife for cutting the waste tires is rotationally arranged on the outer side of the positioning frame; a positioning block is fixed to the outer surface of the disc, a rotating shaft is rotationally arranged on the positioning block, a rotating plate is fixed to the circumference of the rotating shaft, an elastic movable rod is arranged in the disc, a spherical ball is fixed to the end of the movable rod, and a fixed disc is arranged in the disc. When the waste tires are cut, the rotating plate is rotated, the side ring can be lifted outward, the side ring at the cutting position can be kept at a certain angle with the tread, the cutting is facilitated, and the side ring and the tread can be separated more sufficiently.

The utility model relates to a fly ash washing filtrate adjusting tank, which belongs to the field of filtrate adjusting tanks and comprises a liquid storage tank, a mixing structure is fixedly mounted at the upper end of the liquid storage tank and comprises a transfer pipe, a first shell is fixedly connected to the right end of the transfer pipe, and a feeding device is fixedly connected to the left end of the transfer pipe. The front end of the transfer pipe is fixedly connected with a water outlet, the lower end of the transfer pipe is fixedly connected with a reinforcing block, a linkage device is installed in the middle of the transfer pipe, and the rear end of the transfer pipe is fixedly connected with a water inlet; according to the fly ash washing wastewater treatment device, a flocculating agent and fly ash washing wastewater can be rapidly mixed through the linkage device and the feeding device, the amount of the added flocculating agent is accurately controlled, the wastewater and the flocculating agent do not need to be stirred subsequently in the liquid storage tank, the settling time of gypsum powder and heavy metal precipitates is shortened, and the working efficiency is improved.

The utility model relates to a material raking device for an electrode paste forming machine, which comprises a support, a plurality of rollers are rotatably arranged on the support, the rollers are connected through a conveying chain plate, a material storage frame A and a material storage frame B which are embedded with each other are arranged on the conveying chain plate, a forming groove is defined by the material storage frame A and the material storage frame B, and a material conveying groove is arranged on one side of each roller. A plurality of raking teeth extending towards the roller are arranged on the support, the ends, close to the roller, of the raking teeth are located in the movement track range of the side, away from the roller, of the forming groove, and the raking teeth are located over the conveying groove; according to the electrode paste forming device, the distance between the side, away from the roller, of the electrode paste and the axis of the roller is inconsistent, certain force is applied to the side, away from the roller, of the electrode paste through the raking teeth when the electrode paste rotates around the roller, and therefore the electrode paste is separated from the forming groove, and the electrode paste forming device is simple, efficient, safe and reliable.

This application provides a condenser tube processing and bending machine, belonging to the field of bending technology. The condenser tube processing and bending machine includes a base, on which a clamping mechanism is provided. The opening of the clamping mechanism has a groove adapted to the condenser tube, and pulleys are provided at the front end of the groove. The condenser tube abuts against two of the pulleys. A bending mechanism is provided on the base, which pushes the condenser tube into the clamping mechanism. A limiting mechanism is provided on the base to abut one end of the condenser tube. The bending mechanism includes an axially separable abutment wheel. This application has the following advantages: the clamping mechanism provides support on both sides, and the abutment wheel on the bending mechanism pushes the condenser tube along the two pulleys into the groove together with the abutment wheel, providing large-area support, reducing damage and deformation caused by excessive local stress. Furthermore, the abutment wheel can be axially separated, preventing the condenser tube from getting stuck and facilitating its removal.

The utility model relates to a cup feeding structure which comprises a machine frame. The stock bin is arranged on the rack and is used for storing the reaction cup; the turnover assembly is installed on the rack and located on one side of the stock bin, the turnover assembly comprises a turnover bin, and a gap exists between the turnover bin and the stock bin; the first conveying assembly is obliquely mounted at the discharge port of the stock bin, and the first conveying assembly is provided with a plurality of conveying plates used for carrying the reaction cups; the lifting assembly comprises a lifting plate which is located at the gap and can ascend and descend; when a reaction cup popped out of the turnover bin is clamped by the top of the lifting plate and a conveying plate of the first conveying assembly, the conveying plate can apply downward acting force to the lifting plate through the reaction cup, so that the height of the lifting plate is reduced, and the reaction cup is not clamped any more and falls back to the turnover bin or falls into the gap. On the premise that the number of the reaction cups falling into the gap is reduced, the situation that the first conveying assembly is clamped by the reaction cups is avoided.

The utility model relates to circuit breaker technical field especially, it relates to a drawer seat locking device of drawer type frame circuit breaker, the utility model provides a drawer seat locking device of drawer type frame circuit breaker, it mainly comprises drawer seat side plate, lock box, back lining plate, inner lining plate, lining piece, gasket, lock cylinder, outer nut, plastic cover, straight rod, L shape connecting rod, short pole, lock tongue and gear and so on, each part cooperates and matches, when lock tongue is in locking position, lock tongue and the notch of gear are close and can interfere, when the drawer seat body is shaken in at this time, the gear is forced to stop when rotating to lock tongue interference, plays the role of preventing shaking in when locking, when shaking in and shaking out, in addition to the circuit breaker body can be locked when being in the separation position, still can lock the circuit breaker body when being in the test position, the installation position of lock box is set at the front end near drawer seat side plate one side, like this can avoid the hand jamming phenomenon when using the key.

A walking device for power conductor rotating operation equipment and a control method thereof. The walking device comprises a semicircular plate, lifting mechanisms arranged on both sides of the semicircular plate, telescopic mechanisms, horizontal moving gantry mechanisms connected to the telescopic mechanisms, and driving clamping mechanisms connected to the horizontal moving gantry mechanisms. The control method adopts the walking device, detects obstacles in front in real time by using a detection unit, automatically adjusts the pitch angle by using the rotary connection between the telescopic mechanisms and the semicircular plate, plans a composite obstacle avoidance track by the lateral displacement of the telescopic mechanisms cooperating with the gantry mechanisms according to the shape of the obstacles, and realizes power failure protection by using the mechanical self-locking characteristics of the forward and reverse rotating ball screws and the roller envelope structure. The present application can realize stable obstacle crossing and flexible posture adjustment of the power conductor rotating operation equipment under heavy load conditions, avoid mechanism jamming or wire damage caused by rigid confrontation, and reduce the risk of equipment falling caused by power failure during operation.

The utility model discloses a rotary anti-perching piece which comprises a rotary support, connecting holes are formed in the upper portions of the two sides of the rotary support, pin shafts are fixedly connected into the connecting holes, rotary connecting frames are rotatably connected to the pin shafts, and four anti-perching connecting frames are fixedly connected to the rotary connecting frames in a rectangular array mode. A V-shaped anti-habitat support is fixedly connected between every two adjacent anti-habitat connecting frames, the two ends of the two anti-habitat supports are fixed to the anti-habitat connecting frames to be of an X-shaped structure, and a plurality of reinforcing structures are arranged in the middles of the anti-habitat supports. Through the arrangement, the rotary anti-perching piece disclosed by the utility model can realize 180-degree rotation and high-degree-of-freedom adjustment, so that the anti-perching function is realized.

The application discloses a trigger structure and a pneumatic supercharger. The trigger structure comprises a first striker, a second striker, a trigger spool, a first pilot control end corresponding to the first striker and a second pilot control end corresponding to the second striker. The first striker corresponds to a first piston in the pneumatic supercharger, and the second striker corresponds to a second piston in the pneumatic supercharger. The first striker is impacted by the first piston, the second striker is impacted by the second piston, and the impacts occur alternately. The first pilot control end and the second pilot control end are respectively connected with gas paths of two switching positions of a switching valve, and are used for driving the trigger spool in cooperation with the first striker and the second striker, so that the switching valve of the pneumatic supercharger is switched. Therefore, the pneumatic supercharger can avoid the problem that the switching valve cannot be switched to a position by using the trigger structure applied to the pneumatic supercharger.

The invention discloses a portable multifunctional surrounding rock geological structural surface permeability in-situ test probe in the technical field of geological monitoring, and the portable multifunctional surrounding rock geological structural surface permeability in-situ test probe comprises a probe main body, two groups of plug units arranged at the two ends of the probe main body, and sealing parts connected to the outer ends of the plug units, the connecting pipes are symmetrically arranged at the two ends of the detection section pipe, the connecting seats are arranged between each group of connecting pipes and the detection section pipe, and the limiting seats are arranged at the outer ends of each group of connecting pipes. A certain number of electrodes, pore pressure sensors, optical sensors, sonic sensors and other detection elements are arranged on the detection section pipe in a concentrated mode, multifunctional data are integrated, the mode of combined testing in the three directions of light, sound and electricity is achieved, rock mass permeability parameters are comprehensively interpreted, and the rock mass permeability detection accuracy is improved. And the accuracy of the detection data is effectively and powerfully guaranteed.

The utility model discloses a kind of cutting part for steeply inclined coal seam and steeply inclined coal seam coal cutter with the cutting part, including transmission part, motor, rocker, drum and hydraulic cylinder device;Motor connects transmission part, transmission part connects rocker, and the transmission case of transmission part is rotatably connected with the rocker case of rocker;Two drums are symmetrically connected in the left end of transmission case and the one end away from transmission case of rocker case connection installation;Small drum is drivenly connected in the directly below of rocker case, and it is transversely arranged along its length direction;Transmission case is installed in machine shell, and one end of the hydraulic cylinder device is connected on the upper surface of rocker case, and the other end is hingedly connected in the upper portion of machine shell.The utility model is through being provided with small drum, can clean the coal directly below rocker case, ensure that rocker can normally cut, to ensure the normal operation of coal mining, ensure the efficiency of coal mining.The utility model has the technical advantages of simple structure, high working efficiency.

According to the technical scheme, the leather cutting head for the protection shoes is characterized by comprising an installation shell, a suction assembly, a cutting assembly and a safety assembly, the cutting assembly is rotationally connected to the installation shell, the safety assembly is slidably connected to the installation shell, and the suction assembly is installed on the side face of the installation shell and connected with the cutting assembly; use safety is guaranteed through the physical structure of the safety assembly, if an accident occurs in the cutting process, the safety assembly can be immediately used for stopping the cutting assembly, the cutting assembly allows the cutting head to automatically adjust the cutting-in angle according to a path through the rotating connection design, blade abrasion is reduced, edge smoothness is improved, and the cutting efficiency is improved. And the purpose that meat tendons and other places are cut without being clamped is achieved.

The utility model discloses a novel valve conveying device and a novel valve conveying system. The novel valve conveying device comprises an outer sheath tube; the inner sheathing canal is movably arranged in the outer sheathing canal in a penetrating manner, and a release wire is arranged in the inner sheathing canal in a penetrating manner; the core tube is movably arranged in the inner sheath tube in a penetrating manner, one end of the core tube is provided with a fixed end, the core tube is further connected with a fixed claw and a recovery guide part, the core tube is further provided with two limiting parts located between the fixed end and the fixed claw, the recovery guide part is slidably arranged between the two limiting parts, and the recovery guide part is in guide fit with the core tube in the axial direction of the core tube; the capsule assembly comprises a capsule cavity and a pull wire, the pull wire movably penetrates through the core tube, one end of the pull wire is connected with the capsule cavity, and the capsule cavity is used for loading the valve stent connected by the fixing end and the fixing claw. By means of the mode, the novel valve conveying device can avoid the situation that the valve support is carried when the capsule cavity is withdrawn.

The utility model relates to a kind of injection mould ejection mechanism, including straight top piece, the length direction of top block passes through top block hole to make working end surface contact with the product located in the side of straight top piece, the other end of top block is horizontally fixed sliding axle, the end of sliding axle extends top block, guide rail is set outside sliding axle, sliding axle moves along the track of guide rail, the track of guide rail gradually reduces the distance with product in the ejection direction of straight top piece, when straight top piece ejects, drives top block and moves together with sliding axle, guide rail drives top block to move and moves in the product direction in top block hole, product is ejected horizontally, because top block is transversely installed in straight top piece, so no oblique ejection product situation occurs, avoid the phenomenon that ejection mechanism is jammed, injection molding process is safer and more reliable.

A helicopter underwater escape simulator attitude adjustment mechanism relates to the field of simulators. The mechanism includes an annular support shell fitted onto the outside of the underwater escape simulator, an annular connecting web rotatably disposed within the support shell, and a pneumatic motor. The support shell is connected to multiple drive pins, which are spaced apart circumferentially around the support shell, with their axes parallel to the support shell's axis. The inner wall of the support shell has an opening extending circumferentially. The inner wall of the connecting web extends beyond the opening and is fitted onto and connected to the outer wall of the underwater escape simulator. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the drive pins. When the drive gear rotates, it drives the connecting web to rotate via the meshing drive pins. This helicopter underwater escape simulator attitude adjustment mechanism significantly improves the accuracy and stability of the tilting transmission, prevents the transmission mechanism from seizing up, greatly reduces costs, and improves economic efficiency.

The utility model relates to the technical field of mining equipment, in particular to a scraper conveyer for a drilling, loading and exploring unit, which comprises a loading device, a scraper chain, a conveying groove, a chain tensioning device and a driving device. The tensioning device comprises a tensioning sliding block and an elastic piece, the tensioning sliding block is installed on the side wall of the second end of the conveying groove in a sliding mode, the elastic piece is connected between the side wall of the conveying groove and the tensioning sliding block, and the driving device is installed on the tensioning sliding block and connected to the scraper chain in a driving mode. According to the scraper conveyor for the drilling, loading and exploring unit, the scraper chain can also be automatically tensioned to avoid chain clamping during ramp mining through the elastic piece and the tensioning sliding block, and the technical problem that in the prior art, the chain transmission mode of the scraper conveyor is prone to the chain clamping phenomenon in the shovel plate movement process is solved.

A grain volume weight detection device belongs to the technical field of grain detection equipment. The material conveying assembly is connected with the rack through a lifting mechanism, the constant volume assembly is connected with the rack through a turnover mechanism, the constant volume assembly comprises a constant volume cylinder and a material separating plate, the constant volume cylinder is provided with a material separating groove allowing the material separating plate to be inserted therein, the constant volume cylinder is further provided with a material pushing opening, and the material pushing opening is formed in one side of the material separating groove and communicates with the material separating groove; the material separating plate is connected with the machine frame through a material separating pushing device, and the material separating pushing device drives the material separating plate to stretch into or retreat from the material separating groove. The material separating plate is inserted into the material separating groove and has a certain distance from the feeding port of the constant-volume cylinder, the material separating plate is prevented from penetrating through the tip end of the upper end of grains, the constant-volume space of the constant-volume cylinder can be filled with the grains, measurement is more accurate, the grains on the upper side of the material pushing plate drive the constant-volume cylinder to overturn through the overturning mechanism, the constant-volume cylinder falls down, and the lifting mechanism drives the material conveying assembly to ascend and descend. And the overturning of the constant volume cylinder is prevented from being hindered.

The invention relates to the technical field of shampoo processing, in particular to an efficient sterilization device for shampoo processing, which comprises a net-shaped conveying belt, protective plates are arranged on two sides of the net-shaped conveying belt, a rotary drum is mounted above one side of the net-shaped conveying belt, a limiting plate is fixedly mounted at the position of the protective plate on the outer side of the rotary drum, and a gap is reserved between the limiting plate and the net-shaped conveying belt. A sterilization water sprayer is fixedly installed at the position, located on the outer side of the limiting plate, of the protection plate, a first supporting hole plate corresponding to the sterilization water sprayer in position is arranged on the inner side of the net-shaped conveying belt, and an air blowing sterilization dryer is fixedly installed at the position, located on the outer side of the sterilization water sprayer, of the protection plate. According to the device, herbal medicines are discharged at a certain time interval and then are flatly laid and unfolded for sterilization twice, dust is sprayed and washed away, sterilization treatment is conducted in an assembly line mode, the efficiency is high, the speed is high, the slant collecting and collecting plate is adopted for collecting and collecting materials, the sterilized herbal medicines are conveniently stored and collected, and the herbal medicines are matched with a shaft piece and a pressing strip to rotate and push the herbal medicines, so that the herbal medicines are prevented from being clamped.

A kind of round straw bundling machine with rope winding mechanism, including frame, fixed plate, transmission system and rope winding station are equipped on frame, rope winding station is under the action of transmission system along fixed plate reciprocating movement in horizontal direction;Rope winding station is equipped with shaft body, and shaft body is equipped with rope distribution plate below;Shaft body is rotatably arranged on rope winding station;Shaft body middle part is equipped with rope channel;Shaft body is sequentially assembled with rope winding roller and thin rope wheel from top to bottom;Rope winding roller is equipped with rope winding groove;Thin rope wheel is fixed with rope winding claw, while thin rope groove is equipped on the outer wall of thin rope wheel, and the end of thin rope groove is towards the first end of rope winding claw, and the end of rope winding claw is towards the end of rope channel;Rope distribution plate is equipped with middle gap and side gap.The utility model discloses a kind of straw bundling with rope winding mechanism, the movement of rope winding station can be wound into rope belt by thick rope and thin rope on round grass bundle, realize the effect of rope winding to grass bundle, it is convenient to use, can obtain better rope winding effect, and the rope belt that is wound is loose and dense on grass bundle.

The present application relates to the technical fields of mechanical release spring ring, and discloses a spring ring release method convenient to operate, which comprises a feeding rod, the end of the feeding rod is fixedly connected with a release spring, the end of the release spring away from the feeding rod is provided with a distal end connecting piece, and the end of the distal end connecting piece away from the release spring is fixedly connected with a spring ring. The present application is provided with an anti-blocking mechanism, when the surface of the force receiving inclined plate contacts and extrudes the end of the extruding rod, the force receiving inclined plate will be extruded, when the force receiving inclined plate is extruded, the telescopic elastic rod will be pushed to shrink in the direction of moving away from each other, when the force receiving inclined plate moves, the U-shaped plate will be pushed to move in the direction of moving away from each other, at this time, the end of the curved plate is separated from the surface of the force receiving inclined plate, and the clamping plate has returned to the original position, at this time, the distal end connecting piece has no binding force, and the distal end connecting piece and the spring ring are ejected through the elastic force of the release spring, so that the phenomenon that the spring ring is blocked during release is avoided, and the use efficiency is improved.

The invention discloses a refrigeration sheet welding device and method, and aims to overcome the defects that soldering flux cleaning needs to be carried out during refrigeration sheet welding, the welding trace is obvious, and the welding efficiency is low. The device comprises a workbench, the workbench is connected with a lifting plate and a limiting baffle, the lifting plate and the limiting baffle are arranged in a lifting and moving mode, a plurality of conveying rollers are installed on the lifting plate, a pressing plate and an ultrasonic welding head are arranged above the workbench, and a camera is arranged on the periphery of the ultrasonic welding head; the lifting plate ascends to enable the conveying rolling wheels to be exposed out of the surface of the workbench and support and convey the refrigeration piece, the limiting baffle ascends to limit the refrigeration piece, the pressing plate presses the refrigeration piece, and the ultrasonic welding head presses the welding position to conduct ultrasonic welding. According to the welding device, the welding efficiency is improved, seamless connection between refrigeration pieces is achieved through the ultrasonic welding technology, and the space utilization rate is high.

The utility model is suitable for elevator brake technical field provides an elevator brake fault monitoring devices, include: elevator brake, the device moves through connecting rod drive push board, push the connecting plate one, connecting plate two and shade slide of shading mobile subassembly and move, a plurality of ball groove and ball body on shade slide reduce the sliding resistance, avoid the device to slide to deviate, improved detection accuracy. When shade slide moves, shield or expose the photosensor in brake intensity display subassembly, photosensor senses light intensity change, through inductor trigger a plurality of display lamp bright, display brake intensity, and a plurality of small spotlight in mounting frame provide stable light source, ensure photosensor sensing accuracy, avoid the light source unstable to lead to detection error, simultaneously, the magnetic attraction plate of magnetic attraction fixed component is powered by battery, utilizes magnetic force and stably adsorbed in one side of elevator brake, prevent the device from loosening due to vibration, avoid spring to jam, and further ensure the accuracy of fault indication.

This utility model discloses a high-efficiency cutting device for the production of medical spring tubes for minimally invasive surgery. It includes a worktable, with an electrode wire support frame, a positioning and clamping assembly, a Y-axis moving module and an X-axis moving module fixed to its upper surface. The electrode wire and the Y-axis moving module are both connected to a controller. A second worktable is located to the right of the first worktable. The upper surface of the second worktable has a support platform, a Y-axis moving module and an X-axis moving module. A horizontally rotatable support seat is mounted on the upper surface of the support platform, and a vertically rotatable support bracket is mounted on the upper end of the support seat. A lifting and positioning assembly is mounted on the upper surface of the support bracket. The electrode wire discharge cuts the metal spring tube with good flatness and no burrs. The support bracket can rotate horizontally and rotate vertically, effectively reducing the operational difficulty when rotating the metal spring tube 180° horizontally, resulting in high overall cutting efficiency.

This utility model discloses a cardboard conveying device for packaging box processing, relating to the technical field of conveying devices. The utility model includes two support frames, each with an adjustment mechanism and a guiding mechanism. The adjustment mechanism includes rectangular support plates fixedly connected to the inner walls of the two support frames, with a second support frame fixedly connected to the bottom of each rectangular support plate. A second motor is fixedly connected to the bottom of the second support frame. The guiding mechanism includes two third support frames positioned above the first support frames, each containing a fourth support frame. By incorporating the adjustment mechanism, this utility model solves the problem in existing conveying devices where adjusting the guide roller spacing for cardboard of different widths is inconvenient. This leads to narrow cardboard easily swaying and shifting during transport, while wide cardboard is squeezed and wrinkled due to insufficient spacing, severely affecting conveying stability and cardboard quality.

This invention relates to the field of drill float valves and discloses a flap-type drill float valve with automatic protection. It includes a drill rod with an internal drill rod wall. A drill bit mounting block is fixedly installed at the bottom of the drill rod. A valve body is fixedly installed inside the drill rod wall, and a valve body limiting block is fixedly installed at the bottom of the valve body. A flap protection device is provided on the valve body. This invention seals the valve body from top to bottom by having a flap seal inside the flap protection device contact the bottom of the valve body. A flap scraper removes large solid particles from the top of the flap seal when it contacts the valve body, preventing them from getting stuck. The invention also adjusts the rotation sequence of the flap protection device to prevent incorrect closing sequence, improving the safety of the flap-type drill float valve during use and reducing the problem of the flap seal failing to seal due to impurities and large solid particles.