496 results about "Fixed angle" patented technology

The invention discloses a centrifugal blower fan blade assembling machine, and relates to the technical field of fan blade assembling devices, the centrifugal blower fan blade assembling machine comprises a machine base, a feeding slide way, a welding unit, a polishing unit, a rotating seat, a rotating unit and a clamping part, and the periphery of the clamping part is provided with a plurality of blade limiting grooves; the periphery of the clamping part is further provided with a deformation joint communicated with the lower side of the blade limiting groove, and the blade limiting groove and the deformation joint are communicated with the clearance groove. A blade enters a blade limiting groove through a feeding slide way and then moves downwards through a clamping part, so that the clamping part is elastically contracted, the blade limiting groove clamps the blade, then the clamped blade is welded through a welding unit, the blade is welded to the surface of a blade disc, and then a rotating seat rotates by a fixed angle; when one blade is welded to the blade disc, the other blade enters the blade limiting groove, the multiple blades are welded to the blade disc at equal angles, the blades are clamped by the blade limiting groove, large welding deviation cannot be generated in the welding process, and the welding effect is improved.

The invention discloses a turning machine tool and a turning method, and belongs to the technical field of machining. The workpiece main shaft is connected to the Z-axis guide rail in a sliding mode, and the Z-axis guide rail is fixed to the lathe bed; a rotary carriage and an X-axis guide rail; the X-axis machining tool is connected to the X-axis guide rail in a sliding mode; the rotation center line of the workpiece spindle and the rotation center line of the rotary table are perpendicular and coplanar, the X axis deviates from the rotation center line of the rotary table, and the included angle between the Z axis and the X axis is adjusted by rotating the rotation carriage along the B axis. The turning method comprises the steps that the X-axis and the Z-axis are turned at a fixed angle, the B-axis is located at a fixed position, or the X-axis, the Z-axis and the B-axis are turned in a linkage mode. Multi-axis linkage can be carried out, the spatial position of a tool nose tool is accurately calibrated, high precision and high quality of special-shaped surface machining are ensured, the special-shaped surface machining device is suitable for multi-configuration feature machining of special-shaped surfaces, and high-precision cutting under various process requirements of curved surface turning, milling and the like is achieved.

The present invention relates to the technical field of yarn binding machines, specifically a novel pot-type yarn binding machine routing structure, the yarn binding machine includes a yarn binding ball and a yarn binding pot, a yarn routing path for guiding the yarn to enter is provided along the edge of the yarn binding pot, the yarn routing path includes at least one automatic deflection guide wheel group, the yarn outlet of the yarn binding ball is connected to the automatic deflection guide wheel group, the automatic deflection guide wheel group can realize left and right adaptive deflection in the axial direction; at least one first directional guide wheel group and at least one second directional guide wheel group, the first directional guide wheel group and the second directional guide wheel group are fixed at fixed angles and equidistantly around the yarn binding pot; the yarn of the yarn binding ball passes through the automatic deflection guide wheel group, the first directional guide wheel group and the second directional guide wheel group in sequence. Compared with the prior art, the advantages of the present invention are: slowing down the tension fluctuation of the yarn itself when it is reciprocating left and right, thereby reducing the peak value of the yarn binding tension, and using guide wheel rolling instead of direct friction to minimize the yarn binding tension of the output yarn.

The invention belongs to the technical field of automobile part punching, and particularly relates to part punching equipment for automobile part production, which comprises a base, a support frame is fixedly connected to one side of the upper end face of the base, two first sliding rods are slidably connected to the middle of the upper end of the support frame, and punching heads are fixedly connected to the lower ends of the first sliding rods. A rack is fixedly connected to one side of the upper end face of the base, a conveying belt is arranged on the rack, a displacement frame is slidably connected to one side of the upper end face of the base, a lifting plate is slidably connected to a sliding groove of the displacement frame, and a finger air cylinder is rotationally arranged in the middle of the left end face of the lifting plate. By means of the recognition correction type feeding assembly, the multiple special-shaped square pipes which are placed in a mess originally can be placed on the workbench one by one at a fixed angle, punching operation is conducted regularly, and the situation that the punching efficiency is improved due to the fact that the special-shaped square pipes are not uniform in orientation and are mess when conveyed through the previous procedure is avoided. And therefore, the situation that the punching head is difficult to accurately punch the cambered surface of each special-shaped square tube is avoided.

The invention discloses a stand column type B-axis five-axis turning and milling composite spindle device, which is applied to the technical field of five-axis turning and milling composite spindle devices, and is characterized by comprising a B-axis assembly and an A-axis assembly, the B-axis assembly comprises a B-axis main shaft and a first three-piece tooth mouse locking chain wheel which is coaxially and fixedly connected to the B-axis main shaft and used for achieving locking of the B-axis main shaft at a fixed angle. The B-axis main shaft is further provided with a B-axis any-angle locking mechanism. The A-axis assembly comprises an A-axis main shaft and a second three-piece tooth mouse locking chain wheel which is coaxially and fixedly connected to the A-axis main shaft and used for achieving locking of the A-axis main shaft, and further comprises an A-axis rigidity enhancing mechanism used for improving the rigidity of the A-axis main shaft and an A-axis cutter loosening force unloading mechanism used for reducing instant impact force of cutter loosening. The device has the technical effects that the production efficiency and the machining precision are improved, and the use stability of the device is improved.

The invention provides a multidirectional rubbing color fastness detection device, and relates to the technical field of color fastness detection.The multidirectional rubbing color fastness detection device comprises a detection assembly, the detection assembly is composed of a friction mechanism and a driving mechanism, and the reciprocating movement direction of the friction mechanism can be freely adjusted, controlled and guided according to actual requirements, so that the friction mechanism can be adjusted and guided freely on the premise that a to-be-detected sample is not disassembled and assembled again; the detection direction is reset and guided, the operation process is simplified, the detection efficiency is improved, and meanwhile, the driving mechanism has two detection types of reciprocating motion and autorotation, so that the detection requirements of different types (rotary friction and reciprocating friction) can be met, and the problems that the friction head of the rubbing color fastness detection device is fixed in moving direction, and the detection precision is low are solved. And when friction detection needs to be carried out on the surface of the sample in different directions, only the clamped sample needs to be disassembled firstly, the fixed angle of the sample is adjusted and then the sample is clamped again, so that the operation steps are tedious.

The invention provides a wafer alignment method, a wafer alignment device and semiconductor process equipment. The wafer alignment method comprises the following steps: in a first rotation mode, in response to each rotation of a motor by a first fixed angle, shooting the edge of a wafer by using photographing equipment to obtain a first local image; performing target feature point detection on the first local image to determine a target feature image; determining a first initial coordinate of the target feature point according to the target feature image; in the second rotation mode, the motor is controlled to stop for a fixed time after rotating by a second fixed angle every time, and the edge of the wafer is photographed by the photographing device to obtain a second local image; determining a second initial coordinate of the circle center of the wafer according to the plurality of second local images; determining a to-be-rotated angle and a to-be-adjusted offset according to the first initial coordinate, the second initial coordinate and the target alignment direction; and adjusting the circle center of the wafer according to the to-be-adjusted offset, and / or rotating the target feature point according to the to-be-rotated angle of the target feature point so as to realize wafer alignment.

The present invention discloses an angle steel angle cutting machine, which is applied in the field of angle steel angle cutting machines, comprising a lower mounting seat, a fixed platform mounted on the top of the lower mounting seat, a rotating assembly mounted inside the fixed platform, a connecting assembly provided on the top of the rotating assembly, and a push-pull assembly provided on the top of the connecting assembly; the present invention drives the rotating table to rotate and the upper seat to rotate synchronously by setting a driving assembly, and pushes the upper seat and the angle steel cutter to descend through the knife groove to cut the angle steel through the push-pull assembly, so that the angle cutting machine can meet the angle cutting requirements of different angles of the angle steel. Compared with traditional fixed angle cutting machines, the angle cutting machine is flexible to use, can cut a wide angle, and is suitable for the use requirements of various angle steels; and when the angle cutting machine is in use, the angle steel is kept in place, the angle steel cutter and the knife groove work synchronously, and there is no need to adjust up and down. The angle cutting machine is flexible to use and easy to operate.

The invention discloses a temperature control method for crystal growth and a related device, and the method comprises the steps: firstly obtaining image data in a crystal growth process, then extracting an aperture image from the image data, obtaining a plurality of aperture thicknesses corresponding to a plurality of positions in the aperture image according to a fixed angle, and carrying out the temperature control of the crystal growth, and then the temperature is controlled based on the ratio of the number of the aperture thicknesses exceeding the preset threshold to the total number of the apertures corresponding to the plurality of aperture thicknesses, so that whether the number of the aperture thicknesses exceeding the preset threshold is too large or too small can be determined by analyzing the image of the aperture part on the surface of the crystal; whether the single crystal grows uniformly or not and whether the temperature is appropriate or not are judged and determined, the cost is low, the anti-interference capacity is high, accurate temperature information can be obtained, the crystal can grow uniformly by controlling the temperature in the crystal growth process, crystal defects are avoided, and the crystal quality is improved.

The wafer film coating method disclosed in the application controls the whole BG film to be in a flat state before being coated by cooperation between the mold assembly and the fixed angle assembly, keeps the angle between the BG film between the mold roller and the fixed angle roller and the coating platform unchanged, and the mold roller can exhaust the air under the BG film to avoid wrinkles. The hot cutting ring cutter assembly is used for cutting the BG film, the BG film can be cut by the heated blade to avoid wrinkles caused by the ring cutter in the cutting process.

The invention relates to the technical field of aviation aircrafts, and particularly discloses a vertical take-off and landing aircraft which comprises an aircraft body, a main wing, a canard wing, a connecting rod, a first power unit, a second power unit and a third power unit. According to the vertical take-off and landing aircraft, the aircraft body and the connecting rods can bear loads, the loading capacity is further improved, meanwhile, the first power unit, the second power unit and the third power unit are arranged, after any power unit fails, other power units can guarantee safe operation of the vertical take-off and landing aircraft, and the safety of the vertical take-off and landing aircraft is improved. The problems that in the prior art, a vertical take-off and landing aircraft is low in loading capacity and out-of-control easily occurs after any rotor wing fails are effectively solved. Through the third power unit which is obliquely arranged at the fixed angle, a part of lift force can be provided when the vertical take-off and / or vertical landing of the vertical take-off and landing aircraft is carried out, the take-off and landing process of the vertical take-off and landing aircraft is completed through the first power unit and the second power unit, and the stability is improved.

The invention belongs to the technical field of liquid level measurement, and particularly relates to a liquid level measuring device capable of adjusting a measuring angle, the liquid level measuring device comprises a handle, a fixed seat, a turntable and a drill rod, one end of the handle is connected with the fixed seat, the turntable is rotatably arranged in the fixed seat, and the drill rod is arranged on one side of the turntable in an extending manner; a first through hole and a second through hole are formed in the side wall of the rotary disc in a penetrating mode, and a fixed angle b degrees is formed between the first through hole and the second through hole. A third through hole and a fourth through hole are formed in the side wall of the fixing base in a penetrating mode, a fixing angle c degrees is formed between the third through hole and the fourth through hole, and b is smaller than c. When the first through hole and the third through hole directly face each other, the second through hole and the fourth through hole are staggered, and a bolt assembly is inserted into the first through hole and the third through hole for fixation. When the second through hole and the fourth through hole are right opposite, the first through hole and the third through hole are staggered, and a plug pin assembly is inserted into the second through hole and the fourth through hole for fixing. The device can conveniently adjust and measure the liquid level of electrolyte and molten aluminum in the electrolytic cell at a small angle according to the actual condition of the electrolytic cell.

1. Name of the designed product: angle iron diagonal brace. 2. Use of the designed product: angle iron diagonal brace for fixing angle iron. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The utility model relates to a cabinet body assembling structure technical field, concretely relates to a kind of metal cabinet body mortise and tenon assembling structure, including fixed angle plate and tenon plate, tenon plate is fixed on the outside of fixed angle plate, fixed angle plate is the integrated structure of three groups of support plate, and the middle part of support plate is provided with inner groove, and circular groove is provided with on the outside of inner groove, and tenon plate is fixed in inner groove and circular groove, and tenon plate includes panel and the convex head fixed in the front end of panel, convex head is fixed and is set with inner groove, the middle part of convex head is fixed with round head, and round head is set in circular groove, and fixed locking is realized by nut, the function of splicing combination is realized, and the inner groove and circular groove structure, which are provided on the back of support plate, are fixedly connected between tenon plates, form support surface structure, and T type multiple support plate structures on fixed angle plate can be used to fix tenon plate structures in different directions, facilitate the combination of tenon plate into cabinet body structure, and fixed connection is realized between tenon plates by screw rod and nut.

The utility model discloses an ingredient mixing device for smelting high-carbon ferro-chrome, belongs to the technical field of ingredient mixing for smelting high-carbon ferro-chrome, and aims to solve the problem of poor or non-uniform mixing effect caused by a fixed angle of a stirring blade in the conventional mixing device. The tension spring is compressed by pressing the shovel plate, at the moment, the inner wall of the round hole is attached to one end of the clamping plate, the partition plate is separated from the clamping plate, then the angle of the shovel plate can be automatically adjusted according to the number of powder, after the angle of the shovel plate is determined, the force for pressing the shovel plate is released, and the tension spring drives the shovel plate to reset; the partition plate is clamped into the stirring rod again, at the moment, the stirring angle is fixed by the shovel plate, and the effect of mixing uniformity of the ingredient powder is improved.

The invention discloses an industrial solid waste digital processing device, and relates to the technical field of solid waste processing, the industrial solid waste digital processing device comprises a transmission part, a grabbing part, a digital identification system and a collection box, the digital identification system collects waste information on the transmission part and transmits the waste information to a control host, and the control host drives the grabbing part to grab waste; all to-be-grabbed waste is located in the fixed middle area of the conveying belt, the annular mounting support only needs to rotate according to the preset fixed angle, replacement and accurate alignment of the grabbing head can be completed, frequent adjustment of the rotating stroke due to waste position deviation is not needed, control logic is greatly simplified, the grabbing efficiency is improved, and the labor intensity of workers is reduced. And frequent speed change and direction change loss of the grabbing part is reduced, and the probability of grabbing missing and grabbing deviation is reduced.

The utility model belongs to the technical field of feeding mechanisms for coating machines, and discloses a quantitative feeding feeding mechanism for coating machine processing, which comprises a storage barrel, a first guide pipeline is connected to the discharge end of the storage barrel, a cover is arranged at the top of the storage barrel, a first servo motor is mounted on the cover, and a second servo motor is mounted on the first servo motor. The output end of the first servo motor is connected with a first rotating shaft, the outer circumferential wall of the first rotating shaft is connected with an upper blade, a first middle blade, a second middle blade and a lower blade, and during use, the upper blade can promote large-range material circulation; the first middle blade and the second middle blade are mutually opened at a fixed angle to generate axial and radial flow, so that a mixing blind area is effectively eliminated; the lower blade is matched with the chain and the counterweight ball to carry out multi-angle and irregular stirring, so that local agglomeration and material stagnation areas are eliminated, all-directional uniform mixing of materials is ensured, and stirring dead angles are avoided.

The utility model discloses a kind of FPC fixing jigs, it is related to FPC fixing technical field, including base, the top of base is fixedly connected with adjusting assembly, the side of adjusting assembly is fixedly connected with clamping assembly, adjusting assembly includes slide rail, and slide rail is fixed in the top of base, the inside of slide rail is equipped with sliding slot, the inside sliding connection of sliding slot has slider, the top of slider is fixedly connected with fixed rod.The FPC fixing jig is through setting rotatable fixed shell and the cooperation structure of fixed rod, and slider is along the sliding positioning mechanism of sliding slot, the flexible adjustment of multiple dimensions of FPC fixed position is realized, rotating fixed shell and by bolt locking can quickly switch fixed angle, pull plate linkage spring controls the plugging of positioning rod and positioning hole, so that fixed block can be accurately moved along sliding slot and quickly fixed, the design significantly improves the adaptability and operating efficiency of FPC installation, meet the positioning needs of different specifications FPC, while guaranteeing fixed stability.

The application discloses a building outer facade outer wall brick bulge identification method, belongs to the building outer facade inspection technical field, and the identification method depends on a unmanned aerial vehicle, a camera and a controller are installed on the unmanned aerial vehicle, and the controller is used for identifying images shot by the camera; the identification method comprises the following steps: controlling the unmanned aerial vehicle to fly according to a preset path, adjusting a horizontal shooting angle of the camera, making the camera shoot images of outer wall bricks of a building outer facade at a fixed angle of view at regular time intervals and sending the images to the controller; when the unmanned aerial vehicle is at a reference detection height, the controller constructs a theoretical two-dimensional grid template according to the identified vertical gaps and horizontal gaps; the problems that in the prior art, the visual angle deviation of manual inspection is large, the efficiency is low, the danger is high, and it is difficult to highlight three-dimensional features in the front view of the shot images, so that the bulge identification and severity evaluation are inaccurate are solved.

The invention provides an unmanned aerial vehicle propeller locking control method and device, equipment, a storage medium and a program product, and relates to the technical field of unmanned aerial vehicles. The target fixed angle matrix is determined based on the structure size of the unmanned aerial vehicle and the size of a compartment of the loading vehicle; determining a current angle matrix of the propeller; based on the target fixed angle matrix and the current angle matrix, determining an angle difference matrix of the propeller; and based on the angle difference matrix, performing two-closed-loop propeller locking control on the propeller. By means of the mode, the propeller locking control over the large-load vehicle-mounted take-off and landing mooring unmanned aerial vehicle can be achieved without complex structural transformation of the unmanned aerial vehicle, increase of the weight of the unmanned aerial vehicle and use of an encoder prone to interference, safety accidents can be effectively avoided, and the safety and reliability of the vehicle-mounted take-off and landing mooring unmanned aerial vehicle are guaranteed.

The utility model provides a wheel explosion-proof device which comprises an explosion-proof box framework, a plurality of installation grooves are formed in the side edge of the explosion-proof box framework, box plates are arranged in the installation grooves, a connecting mechanism matched with the box plates is arranged in the inner wall of the explosion-proof box framework, and a wheel groove is formed in the center of the bottom of the explosion-proof box framework. According to the technical scheme of the utility model, through the design of the connecting mechanism, the turntable is held to rotate, the turntable drives the rotating column to rotate through the connecting shaft, the rotating column rotates to drive the plurality of track plates on the side edges to rotate, and the track plates rotate to extrude the convex blocks, so that the sliding blocks are driven to linearly move on the fixed angle plates. The sliding block can drive the inclined face clamping plate to move while moving, the inclined face clamping plate is separated from the clamping groove in the side edge of the protection plate, and then separation of the protection plate in the installation groove in one side is achieved.

The invention relates to the technical field of visual inspection, and discloses a vagina electrode three-dimensional curved surface defect detection system and method based on machine vision, and the vagina electrode three-dimensional curved surface defect detection system comprises a base station and a controller installed on the base station. When the visual detector detects the end of the electrode, the ejector rod moves upwards to drive the connecting frame to move, the protrusion at the tail end of the connecting frame slides along the strip-shaped groove of the rocker arm, the rocker arm is pushed to rotate, the angle of the visual detector is adjusted, the design can adapt to the radian difference between the curved surface of the end and the rod body, and the end detection blind area caused by angle fixation is avoided; tiny defects at the end part of the electrode can be accurately captured, and the requirement of medical equipment on the whole surface integrity of the electrode is met; and in a system resetting stage after the end detection is completed, the visual detector does not recover to the initial detection angle and forms a differentiated visual angle with the angle when the rod body is initially detected, and through secondary differentiated angle scanning in the resetting process, the missing detection defect caused by shadow shielding and a curved surface reflection blind area at the initial angle can be effectively captured.

This invention discloses a fully automatic loading and unloading device for rapid product quality inspection, relating to the field of fully automatic loading and unloading equipment technology. It includes a machine body, a reference base that can move linearly along the machine body, a detection base, and grippers. It also includes an adjustment component, which includes a support frame mounted on the detection base. In this invention, after the gear is loaded, there is no need to transfer the gear to an independent adjustment device for orientation calibration. Instead, during the movement of the reference wheel towards the gear, the movement of the reference base synchronously pushes the fixed frame, causing a lever to move. The lever inserts into the gear tooth groove, pushing the gear to rotate and fixing the angle, ensuring precise alignment between the gear tooth groove and the reference wheel teeth. The entire adjustment process requires no additional drive components; the integrated design of the process not only reduces equipment costs but also completely avoids the problems of existing visual inspection methods being susceptible to oil stains on the gear surface and interference from ambient light.

The utility model discloses a multi-angle clamping tool for welding. The multi-angle clamping tool comprises a cylinder, a clamping piece and a clamping piece, wherein a limiting groove is formed in the outer side of the cylinder; the supporting mechanism is arranged on one side of the axis of the cylinder, and the supporting mechanism comprises an arc-shaped rod fixedly connected to one side of the cylinder and a supporting seat used for supporting and fixing the arc-shaped rod; the clamping part is arranged on the outer side of the cylinder, the clamping part comprises fixed angle iron fixedly connected to the outer side of the cylinder and a sliding supporting block installed on the outer side of the limiting groove in a sliding mode, and the rectangular rod welding tool has the advantages that rectangular rods with different inclination angles and thicknesses are allowed to be welded; the clamping position and angle can be easily adjusted through movement of the sliding supporting block in the limiting groove and fastening of the adjusting bolt, and various welding requirements are met; meanwhile, due to the arrangement of the lifting plate, the height of the clamped object can be flexibly adjusted, and the applicability of the tool is further improved; the clamping object can be easily fastened and released by rotating the extrusion screw rod.

The invention discloses an intelligent material sorting device, and belongs to the technical field of material sorting, the intelligent material sorting device comprises a plurality of supports, two symmetrically arranged side plates are mounted on the supports, and a transmission mechanism is mounted between the two side plates; the angle adjusting mechanism can be linked through the scanning controller, the angle of the discharging plate is flexibly adjusted by means of the first electric push rod and the rolling wheels, the static friction force and the gliding requirement of materials with different sizes and weights are met, and the problem of blockage or too fast speed caused by a traditional fixed angle is solved; by means of a transmission belt of the auxiliary discharging mechanism, materials with too small sizes can be accurately pushed to be separated from the transmission belt, and the problem that the materials are difficult to slide off is solved; by matching with the moving and arranging function of the baffle, the material placing deviation can be corrected, and the storage difficulty is reduced; and meanwhile, the materials stably slide down to the second material receiving box along the adaptive angle, so that the collision damage risk is greatly reduced, automatic and precise sorting is integrally realized, the sorting efficiency is improved, and the material loss is reduced.

The application relates to the technical field of machining tools, in particular to valve part indexing machining equipment based on multi-axis cooperation, which comprises a base, a body is slidably installed on the upper end of the base, a machining table is installed on the upper end of the base, a stepping motor is installed in the base, and the stepping motor is used for driving the machining table to rotate. By arranging a driving assembly, the driving assembly drives the tool magazine to rotate and is parallel to the machining spindle of the rotating motor in the inclined state, so that the tool of the spindle can be changed in the inclined state, thereby eliminating the two angle rotation steps, on the one hand, the tool changing time is shortened, and the tool changing efficiency is improved, on the other hand, the inclined tool changing scheme can keep the fixed angle of the tool unchanged, the error accumulation caused by repeated angle rotation is avoided from the source, the machining precision of the tool is improved, the tool does not need to be repeatedly calibrated, and the valve machining efficiency is further improved.

The utility model discloses a ceramic tile packaging and overturning device, which belongs to the technical field of ceramic tile production and comprises an operation workbench, a fixing piece is arranged on the operation workbench, and a bearing output piece used for providing ceramic tile overturning power is arranged on the fixing piece. The output end of the bearing output piece is provided with a clamping containing piece for bearing ceramic tiles to be packaged, and in the working state, the ceramic tiles to be turned over are tightly locked on the clamping containing piece and are driven by the bearing output piece to be subjected to fixed-angle conversion. The bearing output piece drives the clamping containing piece to move from the initial state to the overturning state, no matter the clamping containing piece is overturned from the horizontal state to the vertical state or in the opposite state, piled ceramic tiles are overturned by 90 degrees, packaging of the ceramic tiles is facilitated, the packaging efficiency is greatly improved, and the labor intensity of workers is reduced. And the packaging qualification degree is ensured.

The invention relates to a scraper (18) for a conveyor belt (12), a scraper module (26, 126) for the scraper, a belt conveyor (10) comprising the scraper, and a method for replacing a scraper element (42) on a scraper (18) or a belt conveyor (10). The scraper (18) according to the invention comprises a system support (24) comprising at least one scraper module (26, 126). The scraper module (26, 126) comprises a base element (32) arranged on the system support (24) and a scraper element (42) for contacting the conveyor belt (12). In order to allow particularly simple replacement of the scraper element (42), the scraper element (42) is rotatably attached relative to the base element (32) about an axis of rotation (64) by means of a rotary coupling. The rotary coupling is designed such that in a rotatable position of the scraper element (42) within a fixed angle range (68b), the scraper element (42) is rigidly coupled to the base element (32) in the direction of the rotation axis (64), and in a rotatable position of the scraper element (42) within a release angle range (68a), the scraper element (42) can be released from the base element (32) in the direction (20) of the rotation axis (64).

1. The name of the design product: the main body of the bubbler (fixed angle). 2. The use of the design product: the overall product is a bubbler, used for water outlet; the part to be protected is the main body of the bubbler, used as the main body of the bubbler. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the part drawn by the dashed line in the view is not the part to be protected, and the part drawn by the solid line is the part to be protected.