1004results about How to "Quick take out" patented technology

The utility model belongs to the technical field of demolding, and particularly discloses an automatic demolding device capable of rapidly stripping, which comprises a base, a mold is fixedly mounted at the top of the base, a spiral air duct is arranged in the mold, a tray is arranged at the bottom of the inner wall of the mold, a U-shaped frame is fixedly connected to the outer surface of the base, and the U-shaped frame is fixedly connected to the outer surface of the base. An ejection stripping mechanism for quickly stripping a product in the mold is arranged on the base and comprises a motor fixedly mounted on the base. According to the automatic demolding equipment capable of rapidly stripping, in consideration of the situation that certain contact force and friction force are applied to the side face of a product in a traditional manual product clamping mode, the improved device does not need to clamp a mold manually, and automatic stripping is achieved by jacking a tray through a displacement push rod in the ejection stripping mechanism; contact force and friction force between the clamping jaw and the surface of the product are avoided, and scratches or abrasion to the surface of the product is effectively reduced.

The invention belongs to the technical field of core sampling, and particularly relates to a core sample sampler which comprises a base, a guide rod, a top plate, a hydraulic cylinder, a sampling mechanism and a driving mechanism, the guide rod is arranged on the base, locking grooves are evenly formed in the inner side of the guide rod, and the top plate is arranged at the top end of the guide rod; the hydraulic cylinder is vertically fixed in the middle of the top plate, the sampling mechanism is arranged in the guide rod in a sliding and sleeved mode, a sliding locking mechanism is arranged above the sampling mechanism and can achieve clamping connection between the sampling mechanism and the guide rod or clamping connection between the sampling mechanism and the hydraulic cylinder, and the driving mechanism is arranged on the sampling mechanism. According to the invention, the core sample can be conveniently taken out after being sampled, and sample breakage caused by excessive knocking force is avoided.

The invention relates to the technical field of petroleum machinery forging, and discloses forging equipment for petroleum machinery die forgings, which comprises a processing table top, a guide plate, a guide shaft, a support guide frame, a power cylinder, an upper pressing plate and the like, a guide plate is fixedly connected outside the machining table top, a guide shaft is fixedly connected to the machining table top, a supporting guide frame is fixedly connected to the guide shaft, an upper pressing plate is connected to the supporting guide frame in a sliding mode, the upper pressing plate is connected with the guide plate in a sliding mode, a power cylinder is installed on the supporting guide frame, and a telescopic shaft of the power cylinder penetrates through the supporting guide frame and is fixedly connected with the upper pressing plate. The power cylinder can drive the upper pressing plate to move up and down along the supporting guide frame. According to the device, forging, transferring, cutting and other processes of forgings are produced through an automatic assembly line, the forgings can be automatically ejected out of a die in the forging process, the forgings can be conveniently clamped from the die, and the quality of the forgings is ensured while the working efficiency is improved.

The invention discloses an unmanned aerial vehicle anti-collision structure, and relates to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle anti-collision structure comprises a landing protection mechanism and a camera support mounted on the front side of the landing protection mechanism, the top of the landing protection mechanism is provided with an anti-collision mechanism, one side of the anti-collision mechanism is provided with a storage motor, and the landing protection mechanism comprises an unmanned aerial vehicle body. Landing rotating supports are fixedly installed on the periphery of the bottom of the unmanned aerial vehicle body, landing brackets are rotationally connected to the inner sides of the landing rotating supports, supporting connecting rods are fixedly installed at the bottoms of the two landing brackets, and a landing bottom plate is fixedly installed at the bottoms of the supporting connecting rods. And under the action of sliding connection between a buffering sliding rod and a buffering sliding sleeve, a third supporting rotating rod can drive the buffering sliding sleeve to extrude a third buffering spring while rotating, so that rotating adjustment of a second supporting rotating rod is achieved, and the device can adapt to road surfaces with different gradients.

The utility model discloses an auxiliary spring load adjusting tool for a constant-force spring hanger, which comprises an outer cover shell, a main spring mechanism and auxiliary spring mechanisms arranged on two sides of the main spring mechanism are arranged in the outer cover shell, a locking mechanism is arranged on the main spring mechanism, and the auxiliary spring mechanisms are arranged on two sides of the main spring mechanism. A spring load auxiliary adjusting hydraulic mechanism is arranged on the lower portion of the main spring mechanism, and the spring load auxiliary adjusting hydraulic mechanism is used for adjusting the spring load of the main spring mechanism between the auxiliary spring mechanisms in a hydraulic auxiliary mode. Auxiliary hydraulic adjustment can be carried out on the spring load, meanwhile, the locking toothed plate can be rapidly taken out, the constant-force spring hanger can work normally, manual load adjustment operation is not needed, time and labor are saved, and use is convenient.

The utility model discloses an arc-shaped metal back plate welding supporting die, and relates to the technical field of metal back plate welding, the arc-shaped metal back plate welding supporting die comprises a base, the top of the base is fixedly connected with a die main body, in the arc-shaped metal back plate welding supporting die, a second arc-shaped supporting plate can assist in preliminary placement of a metal back plate, and a second gear and a first gear can drive a connecting plate to rotate; the clamping angle of the claw sleeve is changed, the claw sleeve is attached to the metal back plate, and the two sides of the back plate are stably clamped, so that shaking of the back plate is reduced, the supporting effect on the back plate is improved, and the welding stability is guaranteed; the distance between the two sides of the back plate and the calibration plate can be detected through the infrared distance measuring sensor, the calibration plate is used for driving the back plate to move on the top of the second supporting plate, the calibration structure of the back plate is achieved, therefore, position deviation of the back plate during welding is reduced, and separation of the back plate and the second supporting plate can be accelerated through the electric push rod and the ejection block.

The utility model discloses a phosphorite resource reserve drilling and surveying device, which belongs to the field of resource exploration and comprises a fixing frame, a driving component is arranged in the fixing frame, a drill bit is arranged on the driving component, a cavity communicated with a hollow shaft is arranged in the drill bit, a through groove is arranged at the bottom of the cavity, and the through groove is communicated with the hollow shaft. A conical block is arranged at the bottom of the cavity, a fan is fixedly connected to the side wall of the fixing frame, and the air inlet end of the fan communicates with the top of the hollow shaft. The bottom of the through groove is communicated with the space in the drill hole through downward movement of the conical block, and then the fan is started to generate negative pressure suction force to suck out a rock core sample crushed by rotation of the drill bit below the drill bit, so that the rock core sample at a preset depth position can be quickly taken out, and the material taking efficiency is improved; meanwhile, extra equipment is not needed for extraction, rock core samples at other positions in the drilled hole are prevented from being mixed during taking out, and the accuracy of taking out the sample at the preset depth is improved.

The utility model relates to the technical field of sensors, in particular to an integrated pressure sensor which comprises a bottom plate, a shell, a pressure sensor body and a taking-out mechanism, the taking-out mechanism comprises a fixing assembly, a sliding plate, a plurality of first springs and a guide assembly, the sliding plate is provided with a fixing hole, and the bottom plate and the shell provide installation conditions for the taking-out mechanism. Measurement can be carried out through the pressure sensor body, when the pressure sensor body needs to be taken out, the fixing assembly is moved out of the fixing hole, the sliding plate is pushed to slide towards the side away from the shell through resilience force of a plurality of first springs, meanwhile, the sliding plate is guided by the guide assembly, and when the sliding plate is completely moved out of the shell, measurement is carried out. According to the device, the pressure sensor body can be rapidly taken out from the shell, the taking-out efficiency of the pressure sensor body is improved, meanwhile, the device can be repeatedly used, the packaging cost is reduced, and therefore the problem that the taking-out efficiency of an existing pressure sensor is low is solved.

The utility model relates to the field of food safety, and discloses a food safety sampling rapid detection box which comprises a detection box body, a rotary drum seat is arranged in an inner cavity of the detection box body, a plurality of containing grooves are formed in the top of the rotary drum seat, limiting mechanisms are arranged in inner cavities of the containing grooves, a rotary shaft is fixedly connected to the center of an inner cavity of the rotary drum seat, and the rotary shaft is fixedly connected with the rotary drum seat. According to the food safety sampling rapid detection box, a detection sample test tube is placed in the containing groove and limited by the limiting mechanism, a food label is placed in the label groove, the transparent sealing cover is covered, the test tube is pressed from the top to seal the top, and the transparent sealing cover does not need to be opened when the test tube is taken for detection; the sealing plug is taken down, the rotating block drives the rotating shaft and the rotating drum seat to rotate, so that the required sample test tube is rotated to the bottom of the groove hole, the test tube is ejected by the ejection mechanism, the required sample test tube is conveniently and quickly taken out for detection, and the problem that the required sample test tube is difficult to take out in the conventional food detection box is solved.

The utility model discloses a meat grinder convenient to clean, which comprises a mounting box for mounting, a motor fixedly connected inside the mounting box, a reamer arranged on the left side of the output end of the motor, a crushing roller and a push block, the crushing roller is mounted inside a discharge port, and a meat grinding cavity is fixedly mounted at the front end of the crushing roller. And the rear end of the crushing roller is connected with the driving mechanism, the lower end of the discharging opening and the meat mincing cavity are fixedly installed, the threaded rod is sleeved with the push block, and the outer side of the push block is fixedly connected with a limiting block. According to the meat grinder convenient to clean, meat blocks are automatically ground into the grinder through the two crushing rollers rotating oppositely, the discharging opening is prevented from being blocked, the reamer can be rapidly taken out of the meat grinding cavity, the interior of the grinder is convenient to clean, the installation mode of the meat squeezing sample plate is simple and firm, the time consumed for replacing the sample plate is saved, and the working efficiency is improved. When the machine works, the motor can be rapidly cooled, and the motor is prevented from being damaged due to too high temperature.

The utility model discloses a stevioside stirring crystallization kettle, which relates to the technical field of food processing and comprises a kettle body, a stirring mechanism is arranged in the kettle body, and a driving mechanism is arranged at the top end of the kettle body. The stirring mechanism comprises a stirring shaft and supporting blocks, screw rods are fixedly arranged at the top and the bottom of the stirring shaft, scraping strips are fixedly connected to the two sides of the stirring shaft through stirring rods, bent rods are arranged at the bottoms of the scraping strips, and a plurality of supporting rods are connected to the bottom end of the stirring shaft through the supporting blocks; the stevioside crystallization kettle has the beneficial effects that the stirring shaft of the stirring mechanism is driven by the driving mechanism to rotate, the screw rods are matched with the stirring rod to crystallize and stir stevioside in the kettle body, and the two screw rods are respectively positioned at the top and the bottom of the stirring shaft, so that the spiral directions of the screw rods are opposite by mounting the two screw rods in opposite directions, and the stirring effect is improved. The stirring effect can be improved, and the supporting rod and the supporting block can support the bottom end of the stirring shaft.

The utility model discloses a gene detection kit which comprises a movable seat, a kit body, a supporting plate, a lead screw assembly and a lifting seat, a plurality of electric telescopic supporting legs are installed at the bottom of the movable base, and a control system is installed on the movable base. The top of the box body is detachably connected with an end cover, and a refrigerating element is mounted on the box body; the supporting plate is fixedly mounted on the inner wall of the box body, and a plurality of positioning through holes are formed in the supporting plate; the two lead screw assemblies are arranged side by side and installed on the two opposite inner side walls of the box body correspondingly. The two ends of the lifting base are installed on the sliding sleeves of the two sets of lead screw assemblies correspondingly, and a plurality of U-shaped grooves are formed in the top face of the lifting base and right face the positioning through holes correspondingly. Wherein a temperature sensor is arranged in the box body. According to the kit, the temperature in the kit body can be accurately monitored and adjusted, samples can be conveniently and quickly taken out, the working efficiency and the stability of the samples are improved, and the accuracy of subsequent gene detection results is improved.

The utility model provides a lift type pet feeding and drinking all-in-one machine relates to pet field technical field, including: the casing, the top of casing is fixedly connected with the motor, the central position of the front surface of casing is provided with the rectangular groove, the output end of motor and the casing top movably run through and extend into the rectangular groove, and the motor is connected with the motor. The output end of the motor is fixedly connected with a lead screw. According to the device, the motor, the lead screw, the rectangular groove, the moving frame, the storage box, the controller and the distance sensor are used in cooperation, the height of the moving frame can be adjusted, the moving block is more stable in the moving and using process under the cooperation of the limiting groove, the guide rod and the guide block, and therefore the storage box can be adjusted by adjusting the height of the storage box; a pet can conveniently eat in a standing posture, the necessity of bending down and lowering the head is reduced, and more comfortable and appropriate dining experience is provided.

The utility model provides harmless treatment equipment for medical wastes, which relates to the technical field of treatment equipment, solves the problem of poorer high-temperature sterilization and disinfection effects of the existing treatment equipment, and comprises a feeding box, a crusher is mounted at the bottom of the feeding box, and a treatment box is mounted at the bottom of the crusher. A first fixing part and a second fixing part are mounted on the surface of the treatment box, a group of first mounting plates are mounted on the surface of the first fixing part, an electric cylinder is mounted on the surface of the second fixing part, a mounting part is mounted at the output end of the electric cylinder, and a group of second mounting plates are mounted on the surface of the mounting part; a connecting plate is mounted at the bottom of the second mounting plate, and a box door is mounted on the surface of the connecting plate. The device can crush waste, so that the waste can be fully exposed, the high-temperature sterilization and disinfection effect is improved, meanwhile, the treated waste can be quickly taken out, and the practicability is improved.

The application discloses a pressing device for polaroid processing, which comprises an operation platform, a supporting frame arranged on the operation platform, and a negative pressure adsorption fixing assembly arranged on the lower side of the polaroid. The lower surface of the polaroid is adsorbed and cleaned by the negative pressure adsorption fixing assembly, so that the polaroid is fixed in a mold positioning piece. When the polaroid on the pull plate is slid along a sliding path and arranged in a pull groove, a liquid crystal glass upper surface cleaning assembly arranged on the sliding path is used to clean the upper surface of the liquid crystal glass. The liquid crystal glass upper surface cleaning assembly comprises a glue sticking piece arranged on the upper side of the liquid crystal glass, a smooth surface and a sticking surface are arranged on the glue sticking piece, and the sticking surface faces the upper surface of the liquid crystal glass. When the polaroid is conveyed to the lower side of the glue sticking piece, a pressing assembly arranged on the operation platform is used to press the glue sticking piece, so that the sticking surface is in contact with the upper surface of the liquid crystal glass, and the fingerprints and dust on the liquid crystal glass are cleaned. The application has the effect of dust-free pressing of the polaroid.

The invention relates to the technical field of mold changing of injection molding machines, in particular to a rapid mold changing mechanism for injection molding machining and an injection molding machine thereof, and solves the problems that when an injection molding machine mold changing mechanism is used, a new mold can be installed only after an old mold is taken down and placed well, operation is inconvenient, mold positioning is generally not achieved when the mold is installed, and the mold changing efficiency is high. The injection molding machine comprises an injection molding machine mechanism, and two injection molding mold structures are arranged in the injection molding machine mechanism. Mechanical locking of the mold body is achieved by clamping the limiting insertion rods into the limiting grooves, meanwhile, the electromagnet is powered on, a magnetic conductive plate of the mold body is electromagnetically attracted through the electromagnet, electromagnetic locking of the mold body is achieved, the stability of the mold body is improved, and the service life of the mold body is prolonged. And the situation that the mold body is not mounted in place to cause mold slot positions during mold replacement is avoided.

This utility model relates to the field of construction engineering technology and discloses a lifting device for construction engineering, including a base. The top of the base has a clearance groove, and a lifting bucket is mounted on the top of the clearance groove. A support frame is fixedly connected to the bottom of the lifting bucket, and a cylinder is fixedly connected inside the support frame. A push rod is fixedly connected to the output end of the cylinder. This utility model has the following advantages and effects: When the lifting bucket rises, the first and second lifting plates increase stability. Anti-slip holes slide on the outer surface of the guide rod. The first lifting plate supports the top of the lifting bucket, and the second lifting plate supports the bottom of the lifting bucket, making lifting more stable. When it rises to a certain height, the cylinder is activated to drive the push rod upward, and the push rod pushes the placement frame out of the lifting bucket, facilitating the discharge of the placement frame and thus enabling the rapid removal of building materials from the lifting bucket, improving lifting efficiency.

The insect luring and killing device for the tea garden comprises an insect killing box, a suction plate is arranged in the insect killing box, a mounting plate is rotatably mounted at the front end of the suction plate, a pasting plate is mounted at the front end of the mounting plate, drawing pins are mounted at the four corners of the front end of the pasting plate, a plurality of placing plates are fixedly arranged at the front end of the suction plate, and the placing plates are fixedly arranged at the front end of the pasting plate. An arc-shaped groove is formed in the upper end of the containing plate, a plurality of reserved grooves are formed in the mounting plate, a plurality of rectangular grooves are formed in the pasting plate, and the rectangular grooves are located in front of the reserved grooves. According to the insect trapping and killing device for the tea garden, insects eating food can adhere to the insect trapping and killing device, the insects are prevented from running out of the insect killing box, and the insects are better trapped.

The utility model belongs to the technical field of die-casting dies, and particularly relates to a die-casting die with a buffer structure, which comprises an upper die, the surface of the upper die is sleeved with a slip ring, the upper surface of the slip ring is fixedly connected with a first U-shaped plate, the upper surface of the first U-shaped plate is fixedly connected with a hydraulic push rod, and the upper surface of the hydraulic push rod is fixedly connected with a second U-shaped plate. The upper surface of the hydraulic push rod is fixedly connected with a top plate. According to the die-casting die with the buffer structure, through cooperation of a sliding ring, a sliding groove, a pressing block, a limiting block, a supporting ring, a hollow cylinder, a trapezoidal block, a first spring, a round hole, a cylinder, a damping column, a second U-shaped plate, a threaded hole and a bolt, when the die-casting die is closed, an upper die can slowly move downwards, and the die-casting die is not prone to falling off; and the impact force instantly generated when the upper die and the lower die are assembled is greatly reduced, and the abrasion and damage of the die caused by impact are reduced, so that the service life of the die-casting die is remarkably prolonged.

A multi-directional core-pulling mechanism and mold are disclosed. The multi-directional core-pulling mechanism includes a first slide block, an upper template, and a first core block, a second core block, and a third core block forming an undercut cavity. The upper template is provided with a first guide member and a second guide member, the first guide member being slidably connected to the first slide block. The first core block is fixed to the first slide block, and the first core block is provided with a slidable second slide block, the second slide block being slidably connected to the second guide member, and the second core block being slidably connected to the second slide block. The third core block is movably connected to the first slide block. In this application, the first guide member and the second guide member guide the movement of the first slide block and the second slide block respectively, enabling the first core block, the second core block, and the third core block to perform core-pulling actions along a first direction, a second direction, and a third direction (intersecting in pairs). The multi-directional core-pulling method can accurately adapt to the molding requirements of products with complex undercut structures, improving the molding quality and demolding success rate of the product.

The utility model provides a scrap edge collecting device of a coil stock splitting machine. Relates to the technical field of coil stock splitting machines, the scrap edge collecting device of the coil stock splitting machine comprises a storage box, a collecting box is slidably installed in the storage box, a side edge block is fixedly installed on one side of the storage box, a first electric motor is arranged at the bottom of the side edge block, and a connecting frame is fixedly installed at the top of the side edge block; a first adapter shaft is rotatably mounted on the side block, the first adapter shaft is rotatably connected with the connecting frame, the first adapter shaft is fixedly sleeved with a modulation block, a round rod is rotatably mounted on one side of the modulation block, and a second electric motor is fixedly mounted at the top of the modulation block; the output shaft of the second electric motor and the circular rod are fixedly sleeved with circular gears. The waste gas leftover material collecting device has the advantages of reducing manpower expenditure, automatically collecting waste gas leftover materials and conveniently and rapidly cleaning the leftover materials.

The utility model discloses an anti-interference shielding case for deformation detection of a transformer winding, which relates to the technical field of transformer detection equipment and comprises a shielding case main body and a movable door slidably arranged in the shielding case main body. The shielding cover main body, the movable door and the top plate are arranged to form a shielding structure for wrapping the transformer winding, electromagnetic interference of the external environment on the transformer winding can be isolated in the detection process of the transformer winding, the heat conduction copper pipes are arranged in the middle of the top plate, and the heat conduction copper pipes are provided with the horizontal parts and the inclined parts, so that the heat conduction efficiency is improved. The horizontal part can achieve heat exchange with heat in air in the shielding structure through the heat conduction fins on the outer side of the horizontal part, and the inclined part can achieve heat exchange between heat in the heat conduction copper pipe and outside air through the heat dissipation fins on the outer side of the inclined part. And the transformer winding is prevented from being damaged by heat accumulation while the anti-electromagnetic interference on the transformer winding is realized.

The utility model relates to a blow -fill -seal equipment technical field discloses a sterilization cup subassembly of blow -fill -seal equipment, sterilization cup main part has the accommodation cavity, and the needle is inserted into the accommodation cavity and goes down, and the adjusting mechanism includes adjusting lever, guide seat, guide block and adjusting lever fixed block and installs the sterilization cup mounting seat on the surface of sterilization cup main part. The sterilization cup subassembly of blow -fill -seal equipment moves through the setting adjusting lever and pushes the guide block, indirectly makes the up-and-down movement of sterilization cup main part, when the upward movement, the contact surface of compactor and extruder mould is compacted, forms the sealed environment, compares the operation of multiple jackscrews of current multiple jackscrews, is different from the multiple jackscrew scheme of conventional, adjusts the jackscrew one by one to realize the lifting of sterilization cup, here only needs to adjust an adjusting lever, can use the linear motion of guide block to realize the lifting of sterilization cup, and the operation is simple, and the stress is even.

The utility model relates to the technical field of stamping dies, in particular to a progressive die material belt pressing mechanism which comprises a lower die base, a material belt conveying channel is reserved on the lower die base, and a pressing groove is formed in the upper surface of the lower die base along one side of the material belt conveying channel. A material pressing plate horizontally extending towards the material belt conveying channel is arranged in the material pressing groove. The material pressing plate can slide along the material pressing groove so as to cover or move out of the side edge of the material belt in the material belt conveying channel. Compared with the prior art, the progressive die material belt pressing mechanism at least has the advantages that in the normal stamping process, the material belt can be conveyed in a progressive mode along the material belt conveying channel, the material belt can be prevented from deviating out of the material belt conveying channel under the limitation of the pressing plate, and when the die needs to be overhauled due to sudden failures, the material belt can be prevented from deviating out of the material belt conveying channel. The material pressing plate can slide along the material pressing groove so as to be in contact with limitation on the material belt, the material belt can be taken out rapidly, and the overhauling efficiency is improved.

The invention relates to the technical field of machining, and particularly discloses a batch machining clamp for a workpiece milling machine. A limiting groove is formed in the upper surface of the fixed bottom plate; a limiting shaft is inserted into the limiting groove; the limiting shaft is sleeved with a plurality of sets of limiting partition plates and elastic pieces. Through the elastic pieces, when the limiting partition plates are not subjected to external force, a gap can be formed between the two limiting partition plates, and therefore a workpiece to be machined can be conveniently inserted; a pushing air cylinder is fixedly connected to the position, corresponding to the limiting partition plates, of the fixed bottom plate, the pushing air cylinder acts to push the closest limiting partition plate to move along the limiting shaft, and therefore the workpieces located between the limiting partition plates are clamped, a plurality of workpieces can be clamped at a time for milling, and the workpieces needing to be machined can be rapidly poured at a time; and meanwhile, the workpieces can be rapidly and manually placed among the multiple limiting partition plates, and the multiple workpieces can be rapidly taken out after machining is completed, so that the whole machining process is more efficient.

The utility model discloses a luggage case with a transparent window, which relates to the field of luggage cases and comprises a luggage case body, a transparent window plate is rotatably connected to one side of the luggage case body, a metal frame is arranged in the transparent window plate, a storage box is mounted at the bottom of the metal frame, movable seats are mounted on two sides of the bottom of the transparent window plate, and the movable seats are movably connected with the transparent window plate. A first sliding block is slidably connected to the interior of the moving seat, rotating seats are arranged on the two sides of the interior of the luggage body, connecting rods are rotatably connected to the interiors of the rotating seats, one ends of the connecting rods are rotatably connected to the first sliding block, and locking mechanisms used for locking the supporting angles of the connecting rods are arranged on the rotating seats. By arranging the transparent window plate, a user can conveniently and clearly observe the storage condition of articles in the luggage case when using the luggage case, and meanwhile, the transparent window plate can be quickly unlocked through the coded lock, so that the transparent window plate can be opened, and a charger, a certificate and other articles can be taken out.

This utility model relates to the field of air duct guiding technology and discloses an air duct guiding device for a humidified air handling unit. The novel solution includes an air duct pipe with an installation port extending through its right side. An installation plate is placed inside the installation port, and slots are evenly spaced through its right side. A rubber scraper ring is installed in each slot. A connecting plate is placed on the right side of the installation plate, and guide plates are evenly spaced on the left side of the connecting plate. This utility model allows for quick removal of the installation plate and guide plates from the air duct pipe by unscrewing two sets of bolts, thus improving the ease of assembly and disassembly. By stabilizing the installation plate and pulling the connecting plate to the right, the guide plates move to the right, causing dirt on the surface of the guide plates to be scraped off by the rubber scraper ring. Only the rubber scraper ring needs to be cleaned, eliminating the need to clean the entire surface of the guide plates, thereby improving cleaning convenience.