999results about How to "Avoid breakage" patented technology

The invention relates to the field of steel wire strength testing, in particular to a tire steel wire ring strength inspection device, a tensile testing machine is provided with two multifunctional clamping jaw devices which are distributed up and down, and each multifunctional clamping jaw device comprises a double-layer support body, a driving air cylinder, two clamping fingers, a winding assembly and a pressing assembly. The opposite sides of the two clamping fingers are both in shaft connection with T-shaped pressing wheels, a transmission mechanism is arranged between an output shaft of the driving air cylinder and the two clamping fingers, the winding assembly comprises an anti-skid rubber wheel used for driving the two T-shaped pressing wheels to rotate synchronously, the pressing assembly comprises an arc-shaped pressing plate used for being tightly attached to the side walls of the T-shaped pressing wheels, and the anti-skid rubber wheel is used for driving the two T-shaped pressing wheels to rotate synchronously. A traditional direct clamping mode is replaced by a coiling mode, the situation that a clamping part is broken due to the fact that local stress is excessively concentrated in a traditional clamping testing mode is greatly avoided, the defect that the stress of the steel wire is concentrated in the traditional clamping mode is effectively overcome, and the testing result is more accurate and reliable.

The yarn pay-off device comprises a base, a supporting column is vertically arranged above the left side of the base, a pay-off barrel is installed above the supporting column, a box body is arranged on the upper surface of the middle of the base, a driving structure is arranged in the box body, and yarn pressing rollers are installed on the upper portion and the lower portion of the left side in front of the front face of the box body. A top plate is installed on the upper portion of the right side of the box body, a vertical rod is vertically connected to the lower portion of the top plate, the bottom end of the vertical rod is connected to the right side of the upper surface of the base, and wire pulling blocks are connected to the upper outer side and the lower outer side of the vertical rod correspondingly; a yarn body in the pay-off barrel penetrates through the yarn pressing roller, the yarn winding roller, the yarn breaking sensor and the yarn pulling block. According to the yarn pay-off device capable of detecting yarn breakage, the rotating speed of the winding roller is limited, so that the situation that yarn breakage occurs during pay-off is avoided, operation of the driving structure is stopped when yarn breakage is detected through the yarn breakage sensor, the problems of yarn leakage and the like of woven products are avoided, and the quality of the woven products is guaranteed.

The invention relates to the field of marine transformers, and discloses a marine transformer with a protection mechanism, the marine transformer comprises a transformer oil tank and a mounting seat, the transformer oil tank is arranged above the mounting seat, a movable supporting structure is arranged in the middle of the upper surface of the mounting seat, and the transformer oil tank is arranged on the mounting seat through an external protection structure; a mounting frame is fastened in the middle of the lower inner wall of the transformer oil tank, a winding is mounted on the mounting frame, and oil sliding up and down in the transformer oil tank can be blocked through an internal protection structure when the ship body shakes up and down to drive the oil to slide, so that the upper side face and the lower side face of the transformer oil tank are protected; the problem that the upper side face and the lower side face of the transformer oil tank deform due to impact is reduced, the upper side face and the lower side face of the transformer oil tank can be protected outside the transformer oil tank through the external protection structure and the auxiliary protection structure, and the protection effect is better.

The invention discloses an automatic production process for a metal soup spoon, and relates to the technical field of soup spoons. The automatic production process for a metal soup spoon, by manufacturing a tubular handle portion, has higher strength than an existing flat handle, and the tubular handle portion is not easy to be deformed during transportation and use. At the same time, a split spoon head and a tubular handle portion are adopted, and the spoon head can be stamped and stretched separately, which can not only avoid the problem that the interference between the handle and the mold leads to only shallow stretching of the spoon head and the inability to make a deeper hemispherical spoon head, but also facilitates the positioning and placement of round plates, and does not require manual holding of the handle for stamping and stretching, effectively avoiding safety hazards. The spoon head and the tubular handle portion are connected by a handle head precision casting, and the handle head precision casting is cast by casting, and is bent after molding, with a certain curvature, avoiding the existing trouble of bending the connection between the spoon head and the handle, and avoiding the situation that it is easy to break during the bending process.

The invention belongs to the technical field of conveying equipment, and particularly relates to safety auxiliary coal conveying equipment for coal mine transportation. Comprising a rack, and a crushing assembly and a smoothing assembly are arranged at the upper end of the rack; the crushing assembly comprises a connecting cylinder, a screen, a guide table, a crushing table and the like, the connecting cylinder and the screen shovel up coal briquettes on the conveying belt, large coal briquettes are screened out, the large coal briquettes are conveyed to the crushing table to be crushed through the guide table, and the crushed coal briquettes fall onto the conveying belt; the smoothing assembly comprises smoothing rollers capable of rotating and revolving, and coal briquettes accumulated on the two sides are pushed into the middle of the conveying belt through the smoothing rollers. And the coal briquettes conveyed by the conveying belt are uniform and are not easy to fall off from the conveying belt, so that the safety and the conveying efficiency of the coal briquettes during conveying are improved.

The invention relates to a test method of an organic electrochemical transistor tuning dual-mode flexible band-pass filter. The IPC classification number is G01N3 / 32. According to the organic electrochemical transistor tuning dual-mode flexible band-pass filter, the thickness of a silver metal film is gradually increased from the inner edge to the outer edge of a leading-out end part, connected with a filter functional area, of the organic electrochemical transistor tuning dual-mode flexible band-pass filter, and the thickness is gradually increased to 2-3 times from the thickness of the filter functional area; and an interface stress tolerance area between the silver metal film layer and the polyimide film is gradually transferred to the leading-out end part and presents a gradual change trend. When bending, folding and twisting tests are carried out on the flexible band-pass filter, the problems that the leading-out end part is cracked, fractured, peeled off and the like earlier than the functional area of the filter can be avoided, so that the mechanical property of the flexible band-pass filter can be accurately, objectively and completely tested in the whole test process; and the condition that the leading-out end part is damaged in advance when the mechanical property of the filter is not completely tested is avoided.

The invention discloses a carbon fiber bicycle hub coating-free hot stamping device and a coating-free hot stamping process, and belongs to the field of hub coating-free hot stamping, the carbon fiber bicycle hub coating-free hot stamping device comprises a working table, a mounting plane is arranged on the working table, a feeding table for bearing a carbon fiber bicycle hub is detachably arranged on the working table, and the feeding table is provided with a discharging port for discharging the carbon fiber bicycle hub. A baffle is detachably arranged on the feeding table. According to the coating-free hot stamping device and the coating-free hot stamping process for the carbon fiber bicycle hub, through combination of the follow-up blowing component and the follow-up inserting component, hot stamping operation on the carbon fiber bicycle hub can be effectively and synergistically assisted, so that when the hot stamping component conducts hot stamping on the carbon fiber bicycle hub, the carbon fiber bicycle hub is prevented from being damaged, and the carbon fiber bicycle hub is prevented from being damaged. The situation that the follow-up air blowing component and the follow-up inserting component are used at the same time when the hot stamping component moves downwards is avoided, the stability of hot stamping is improved, the follow-up air blowing component and the follow-up inserting component can be promoted to be used at the same time every time the hot stamping component moves downwards, and the overall maintenance difficulty of equipment is lowered.

The invention relates to the technical field of pipeline repairing, and discloses a drainage pipeline non-excavation repairing airbag and a repairing method thereof.The drainage pipeline non-excavation repairing airbag comprises an inner bag and an outer bag, the outer bag and the inner bag are integrally manufactured, and a plurality of adjusting assemblies are arranged between the inner bag and the outer bag and comprise first air inlet pipes; the inner diameter of the first air inlet pipe is sequentially increased in the axis direction, an air blocking column is slidably connected to the interior of the first air inlet pipe, the diameter of one end of the air blocking column is consistent with the inner diameter of the lower end of the first air inlet pipe, an exhaust groove used for air circulation is formed in one end of the air blocking column, and the outer bag is located on the outer side of the inner bag. An air inlet assembly is arranged in the inner bag; under the action of the adjusting assembly, the air inflow is adjusted or air inflow is stopped according to the actual situation, when the interior of the repaired pipeline is concave, the air inflow is increased to enable the outer bag to expand again, repairing materials are more attached, and when the interior of the repaired pipeline is convex, the air inflow is reduced, and the situation that the outer bag is damaged due to too large air pressure is prevented.

The double-discharge high-pressure manifold for fracturing relates to the field of high-pressure manifolds and comprises a bottom plate, supporting frames are symmetrically arranged at the top of the bottom plate, the bottoms of the supporting frames are fixedly connected with the top of the bottom plate, a middle mechanism is fixedly connected to the inner walls of the supporting frames, and a valve body mechanism is fixedly connected to one end of the middle mechanism. The end, away from the valve body mechanism, of the middle mechanism is fixedly connected with a space mechanism, the end, away from the middle mechanism, of the space mechanism is fixedly connected with a three-way mechanism, and the top of the bottom plate is fixedly connected with a cleaning mechanism. For circulation with different pressures, the size of a suitable pipeline is also changed, certain pressure loss can be generated when fluid flows in a manifold, and the fracturing effect can be possibly influenced.

The invention relates to the technical field of FPC bending devices, in particular to an automatic FPC board bending device, a board splicing platform comprises an objective table and a moving block, a sliding block of the board splicing platform is in sliding connection with a sliding rail on an FPC production line, an FPC board is placed on the objective table and limited through a positioning mechanism, the objective table is provided with a bending mechanism, and the moving block is arranged on the moving block. A first adsorption mechanism is mounted on one side, close to the bending mechanism, of the objective table; the bending mechanism comprises a bearing plate and a mounting frame, the bearing plate is used for placing the FPC board, a second adsorption mechanism is arranged on the side, close to the board splicing platform, of the bearing plate, a servo motor is mounted on the mounting frame, bending adjusting mechanisms are mounted on the two faces of the bearing plate correspondingly, and the bending adjusting mechanisms act on the FPC board located between the board splicing platform and the bearing plate. Comprising supporting rods and mounting bases. The bending requirements of different positions on different FPC boards can be met, the different positions on the FPC boards can be synchronously bent at the same time, the equipment compatibility is high, meanwhile, the manual operation cost is reduced through the automatic design, and the production efficiency is improved.

The present invention relates to the field of steel wire strength testing, and specifically to a tire steel wire ring strength testing device, the tensile testing machine has two multifunctional clamping jaw devices distributed up and down, the multifunctional clamping jaw device comprises a double-layer bracket body, a driving cylinder, two clamping fingers, a winding assembly and a clamping assembly, the two clamping fingers are axially connected to the opposite sides with a T-shaped clamping wheel, a transmission mechanism is arranged between the output shaft of the driving cylinder and the two clamping fingers, the winding assembly comprises an anti-skid rubber wheel for driving the two T-shaped clamping wheels to rotate synchronously, and the clamping assembly comprises an arc-shaped pressure plate for clinging to the side wall of the T-shaped clamping wheel. The present invention replaces the traditional direct clamping method with a winding method, which greatly avoids the situation that the clamping part is broken due to excessive local stress concentration in the traditional clamping test method, effectively alleviates the defect of steel wire stress concentration in the traditional clamping method, and makes the test result more accurate and reliable.

The utility model provides a driving module cooling structure of an external rotor motor, which comprises a driver cooling seat and a plurality of driving modules, and the plurality of driving modules are circumferentially fixed on the peripheral wall of the driver cooling seat at intervals. Cooling cavities in one-to-one correspondence with the driving modules are formed in the outer wall of the driver cooling seat, an opening is formed in the outer end of each cooling cavity, and a power tube in each driving module is attached to the opening of the cooling cavity in the corresponding position and peripherally sealed with the driver cooling seat at the outer edge of the cooling cavity; a cooling liquid inlet and a cooling liquid outlet are formed in the driver cooling seat, the first cooling cavity is communicated with the cooling liquid inlet, the tail cooling cavity is communicated with the cooling liquid outlet, and every two adjacent cooling cavities are communicated through at least one cooling liquid channel; according to the utility model, the cooling effect and efficiency of the driving module in the external rotor motor can be improved, so that the driving module is prevented from being damaged due to overheating.

The invention discloses electric leakage protection power line welding equipment which comprises a base and a movable shell, the movable shell slides in the horizontal direction under thrust, the inner surface of the movable shell is slidably connected with an extrusion plate, the bottom of the movable shell is slidably connected with a wire placement plate, and the bottom of the wire placement plate is fixedly connected with the base. A protection assembly is fixedly connected to the position, close to the wire placement plate, of the base, a welding assembly is slidably connected to the position, away from the wire placement plate, of the base, a processing assembly is rotatably connected to the side, close to the movable shell, of the welding assembly, and a mounting assembly is fixedly connected to the inner surface of the welding assembly. According to the electric leakage protection power line welding equipment, the alignment accuracy of a power line can be conveniently kept, the welding assembly is not prone to repeated welding when welding the power line, the processing assembly adsorbs and purifies peculiar smells generated during welding, and the situation that welding slag splashes around the equipment, and the cleaning difficulty is increased is prevented.

The invention relates to the technical field of electrical automation, in particular to a wire bridge for electrical automation. The cable tray comprises a cable tray body, two pairs of supporting plates are symmetrically and fixedly connected to the inner side of the cable tray body, extension springs are fixedly connected to the inner walls of the multiple supporting plates, a transverse plate is fixedly connected between the ends of the extension springs, and a guide groove is formed in the inner wall of the transverse plate; a plurality of heat dissipation holes are formed in the positions, on the inner sides of the transverse plates, of the two sides of the guide grooves, and a plurality of clamping assemblies are arranged at the positions, below the transverse plates, in the bridge body; the electric wires are restrained by the clamping assemblies, cross winding is avoided, then force is applied to the hinging pieces through the hinging plates, the distance between the cables is adjusted, the arrangement of the electric wires in the bridge body is more regular, the disordered crossing situation is reduced, and meanwhile the heat dissipation effect is improved through the adjustment of the distance between the electric wires and heat dissipation holes formed in a transverse plate. Therefore, the air flowing space between the electric wires is increased, and poor heat dissipation is prevented.

According to the tension training assembly suitable for the strength training instrument and the strength training instrument, the flexible guide rail is adopted as the flexible movement guide rail of the movable pulley block, and the two ends of the movable pulley block are connected with the suspension wire and the resistance source pull rope correspondingly; a trainee pulls the movable pulley block to slide along a sliding stroke area limited by the flexible guide rail through the suspension wire so as to overcome the resistance of the resistance source pull rope and play a role in strength training. The mode that the movable pulley block is matched with the flexible guide rail perfectly solves the inherent difficulties that a traditional movable pulley metal guide rail is high in price, and left and right guide rails are blocked and unsmooth in the reciprocating motion process, and due to the adoption of the technology that the flexible guide rail is matched with the movable pulley block, the double-end rope outlet function of low-cost single-motor resistance source equipment can be achieved. And compared with the scheme in the market, the equipment cost is greatly reduced, and the use comfort performance is improved. The tension training assembly can be assembled on various rope output strength training instruments, and low-cost electronic strength training equipment is provided.

The utility model provides a portable USB flash disk, and belongs to the technical field of USB flash disks. The portable USB flash disk comprises a lower shell and an upper shell connected with the lower shell in an inserted mode, the same installation groove is formed between the lower shell and the upper shell, a USB flash disk body is installed in the installation groove, a U-shaped groove is formed in the top of the lower shell, heat dissipation holes are formed in the two ends of the U-shaped groove, and the inner wall of the U-shaped groove is communicated with the installation groove. The U-shaped groove is formed in the top of the lower shell, the heat dissipation holes are formed in the two sides of the U-shaped groove, the U-shaped groove is connected with the outside through the heat dissipation holes, the U-shaped groove is communicated with the mounting groove, the mounting groove is further communicated with the outside, heat generated by the USB flash disk body can be conveniently dissipated to the outside, the USB flash disk body can be wrapped by the lower shell and the upper shell, and the U-shaped groove is convenient to use. The purpose of protecting the USB flash disk body can be achieved, and the USB flash disk body is prevented from being damaged due to the influence of external force.

The utility model discloses a special-shaped glass bottle which comprises a glass bottle body, a rubber air bag is fixedly installed at the bottom of the glass bottle body, a first one-way air inlet valve is fixedly connected to the surface of the rubber air bag, and a telescopic air bag is fixedly installed in the glass bottle body. One end of the first one-way air inlet valve penetrates through the bottom face of the glass bottle body to be fixedly connected with a telescopic air bag, an exhaust pipe is fixedly installed at the top of the telescopic air bag, a sealing cover is slidably installed at the tail end of the exhaust pipe, and a second one-way air inlet valve is fixedly connected to the side surface of the rubber air bag. The glass bottle has the advantages that the rubber air bag is squeezed to absorb outside air, the rubber air bag injects air into the telescopic air bag through the one-way air inlet valve, after the telescopic air bag expands, viscous liquid in the glass bottle body is squeezed out, and material taking is more convenient.

The present invention relates to the technical field of cosmetics, and in particular to a hair dye composition for preventing hair breakage, hypoallergenic and repairing, and a preparation method and application thereof. The composition is composed of agent A and agent B in a mass ratio of 1:0.8-1.5. The raw materials of agent A are hydrogen peroxide, glycerol, thickener, cetearyl alcohol polyether, sodium stannate, hydroxyethylidene diphosphoric acid and water. The raw materials of agent B are: p-phenylenediamine, sodium sulfite, triethanolamine, urea, Polygonum multiflorum extract, Acorus calamus extract, Nepeta tenuifolia extract, chelating agent, ascorbate, preservative, keratin, trehalose, 4-amino-2-hydroxytoluene, polyquaternium salt, squalane, arbutin, allantoin, bisabolol, emulsifier, polyglutamic acid, octadecyl alcohol, wheat germ oil and water. The hair dye of the present invention has a good hair dyeing effect, and has hypoallergenicity, and also has a good effect of preventing hair breakage and repairing hair quality.

The utility model discloses wood moisture content detection equipment which comprises a detection device body, an anti-skid handle, a screen protective cover, a probe protective cover, a probe sensor, an automatic drilling probe, a detection displayer, a magnetic attraction layer and a power indicator. Two groups of limiting strips are arranged on the two sides of the interior of the screen protective cover, limiting grooves are formed in the left side and the right side of the detection device body, and eight groups of magnetic attraction layers are arranged at the four corners of the left side and the right side of the detection device body. According to the wood moisture content detection equipment disclosed by the utility model, the fragile detection display is conveniently protected and the service life is prolonged through the arranged screen protective cover when the moisture content detection equipment is not used, and the probe is conveniently inserted into wood for detection through the arranged automatic drilling probe; the step that a worker inserts the probe into wood with force can be omitted, and the probe can be prevented from being broken.

The invention relates to the technical field of fabric air permeability detection, and discloses fabric air permeability detection equipment and an air permeability detection method of an antibacterial air-permeable warp knitted fabric. The fabric air permeability detection equipment comprises a frame, a first sliding assembly is arranged in the frame, and a second sliding assembly is arranged on the outer surface of the first sliding assembly; the outer surface of the second sliding assembly is fixedly connected with a clamping assembly, and the interior of the frame is fixedly connected with a first detection assembly, a water soaking assembly, a second detection assembly and an extrusion assembly. Through connection of the first sliding assembly and the water soaking assembly, the first sliding assembly drives the second sliding assembly and the clamping assembly to move, so that the antibacterial breathable fabric on the clamping assembly moves into the water soaking assembly, and the water soaking assembly descends to push the fabric to be soaked in water so that the fabric can be fully wetted; the soaking assembly is not affected by the first detection assembly and the second detection assembly when soaking the antibacterial breathable fabric, and the situation that the detection result is affected due to the fact that the antibacterial breathable fabric is not completely soaked is avoided.

A smelting furnace discharging and dumping device belongs to the technical field of smelting furnace discharging and comprises a smelting furnace body, driving assemblies used for driving the smelting furnace body to rotate and dump are arranged on the front side and the rear side of the middle of the outer wall of the smelting furnace body, and each driving assembly comprises two stand columns symmetrically arranged on the front side and the rear side of the outer wall of the smelting furnace body front and back. A shaft body is vertically and rotationally mounted at the top end of the upright post and is fixedly connected with the middle of the outer wall of the smelting furnace main body. The rotary dumping point of the smelting furnace body is arranged in the middle of the smelting furnace body, compared with a traditional mode that a dumping acting point is arranged at the bottom end of the smelting furnace body, the rotary dumping function of the smelting furnace body can be achieved more easily, and the smelting furnace body and the connecting shaft body of the driving device are protected; and compared with a driving mode of driving the bottom end of the smelting furnace main body, the situation that the shaft body is broken in the driving process is avoided, and compared with a driving mode of driving the bottom end of the smelting furnace main body, the tilting angle of the smelting furnace main body is more complete, and materials are completely dumped.

The invention belongs to the technical field of cable production and processing, and discloses a surface treatment method of a smooth wrapped cable for aviation, which comprises the following steps of: 1, firstly, adopting a PI / PTFE (Polytetrafluoroethylene) composite belt on the inner layer of a cable conductor, optimally adopting 50.8%-51.5% of wrapping lap joint, adopting a PTFE special-shaped belt to wrap the outer layer, adopting a wrapping belt with the thickness of 0.07 mm, adopting 50.8%-51.3% of lap joint, adopting a three-roll-shaft die to tightly press in the same direction after the wrapping is completed, and adopting a three-roll-shaft die to tightly press in the same direction; and the pressing outer diameter is 0.1-0.2 mm smaller than the wrapping outer diameter. In the cable wrapping process, surface pretreatment is carried out, then high-temperature grinding secondary treatment is carried out, and then the wrapped cable is coated with the PTFE insulating layer, so that the surface of the cable is smoother, the surface smoothness is reduced to 10% or below, the seamless effect can be achieved, meanwhile, the insulating thickness of the surface of the wire is increased, the cable is more wear-resistant and pressure-resistant in the machining process, and the service life of the cable is prolonged. The service life of the cable is effectively prolonged, the durable effect of the cable is effectively improved, and if friction is generated between the cable and other metal materials, the situation that the surface of the cable is damaged can also be avoided.

The invention relates to the technical field of optical fiber connectors, in particular to an optical cable fixing and clamping device of an optical fiber movable connector, a contact plate is fixedly mounted in the right end of a connector shell, and an optical cable located in the connector shell is arranged on the contact plate; driving racks located on the front side and the rear side of an optical cable are arranged at the bottom end of the inner side of the connector shell, the sides, close to each other, of the two driving racks are provided with rotation shafts respectively, the two rotation shafts are rotationally installed on the connector shell respectively, and bottom gears meshed with the corresponding driving racks are coaxially and fixedly installed on the two rotation shafts respectively. Top gears located above the corresponding bottom gears are coaxially and fixedly installed on the two rotation shafts respectively, two moving rods are slidably installed at the inner end of the connector shell, and moving racks meshed with the corresponding top gears are fixedly installed on the two moving rods respectively. The device can quickly clamp an optical cable, and ensures the stability, safety and stability of optical fiber transmission.

The invention relates to the technical field of conveyors, in particular to a coal mine scraper conveyor which comprises a rack, a driving part is arranged on one side of the rack, a driving roller and a driven roller are arranged on the rack, the driving roller is arranged at the output end of the driving part, a conveying chain is arranged on the driving roller and the driven roller, and a scraper mechanism is arranged on the conveying chain. The coal conveying device has the beneficial effects that by arranging the scraper mechanism, when there are many coal briquettes on one side of the contact plate, the coal briquettes on the side with many coal briquettes are pushed to the side with few coal briquettes, it is ensured that the coal briquettes are evenly distributed on the side, away from the middle plate, of the contact plate, the conveying chains on the two sides of the connecting plate are made to be identical in stress, and the synchronization degree of the conveying chains on the two sides of the connecting plate is ensured; the situation that the conveying chains are broken due to the fact that meshing between the conveying chains and the driving roller and meshing between the conveying chains and the driven roller are staggered due to deviation of the synchronism of the conveying chains on the two sides of the connecting plate is avoided, and normal operation of the conveyor is guaranteed.

The invention discloses a steering device capable of adjusting the orientation of a photovoltaic solar panel, and particularly relates to the technical field of photovoltaic power generation, the middle part of the upper end of a base is rotatably connected with a fixing mechanism, the upper part of the fixing mechanism is symmetrically provided with contraction mechanisms, and the two contraction mechanisms are jointly and fixedly connected with three photovoltaic panels; a transmission mechanism is fixedly connected to the front side of the upper end of the base, and cleaning mechanisms are symmetrically arranged at the upper end of the base. According to the steering device capable of adjusting the orientation of the photovoltaic solar panel, the effect that the photovoltaic panel always faces the sun is achieved through cooperation of the fixing mechanism and the transmission mechanism, meanwhile, smooth and impact-free rotation can be achieved when the angle of the photovoltaic panel is adjusted, and similarly, the steering effect is good. The surface of the photovoltaic panel is cleaned before the photovoltaic panel is folded through cooperation of the contraction mechanism and the cleaning mechanism, so that the surface of the photovoltaic panel can be protected from being scratched or broken in extreme weather while the photoelectric conversion efficiency is prevented from being reduced by dust and dirt accumulated on the surface.

The invention belongs to the technical field of production processes of down-proof down jacket fabrics, and particularly relates to a sewing process of a down-proof down jacket fabric. The sewing device comprises a sewing frame, the top of the sewing frame is provided with two wrinkle removing parts which are symmetrically distributed left and right, and each wrinkle removing part comprises two fixing columns fixedly installed at the top of the sewing frame. The left side and the right side of the down-proof down jacket fabric are stretched through the wrinkle removing part, wrinkles generated in the sewing process of the down-proof down jacket fabric can be removed, and the guide rail in the wrinkle removing part is linearly enlarged towards the end close to the sewing machine; therefore, the stretching force of the down-proof down jacket fabric in the moving process is gradually and linearly enhanced, and compared with a one-time pulling mode, the linearly-enhanced stretching mode can avoid the situation that the down-proof down jacket fabric is broken due to sudden release of stress in the down-proof down jacket fabric. And a reasonable protection effect is achieved on the down-proof down jacket fabric while the wrinkles are removed.

The utility model discloses a heating core assembly for a heat gun, which belongs to the technical field of electric tools and comprises a sleeve, a core frame, a heating element and a ceramic ring, the core frame, the heating element and the ceramic ring are positioned in the sleeve, the heating element is arranged on the core frame, the ceramic ring is positioned at the downstream of the heating element, an air outlet cover is arranged in front of the core frame, and the air outlet cover is arranged in front of the core frame. A ceramic ring is arranged between the core frame and the air outlet cover, the ceramic ring comprises a mounting part and an outer ring located on the periphery of the fixing part, the mounting part and the outer ring are connected through a plurality of connecting ribs, a ventilating duct is formed between every two adjacent connecting ribs, and a breaking seam enabling the outer ring to be broken in the circumferential direction is formed in the outer ring. The outer ring of the ceramic ring is provided with the breaking seam, so that the ceramic ring is broken in the circumferential direction, the situation that the ceramic ring is damaged due to thermal expansion is avoided, and the service life of the ceramic ring is guaranteed.

The invention relates to an instant lottery ticket claiming and recycling device, which effectively solves the problem that the existing instant lottery ticket claiming and recycling operation is inconvenient. Comprising a main body shell, a fixing shell is arranged in the main body shell through front-back axial supporting columns, the upper side of the fixing shell is in a big-end-up funnel shape, a voting groove communicated with the fixing shell is formed in the upper side wall of the main body shell, a left-right through anti-falling groove is formed in the left end of the fixing shell, and front-back axial rotating columns capable of rotating are arranged on the left side and the right side in the main body shell correspondingly; a V-shaped pushing groove is formed in the upper side of the rotating pipe, a pushing column inserted into the pushing groove is arranged on the moving column, transverse grooves in the front-back direction are formed in the upper side and the lower side of the moving column respectively, the rear end of the ejector block extends out of the sliding barrel and is provided with a scraper capable of being inserted into the operation groove, a punching plate is arranged at the lower end of the connecting plate, and a plurality of punching nails are arranged at the rear end of the punching plate. The structure is simple, the conception is novel, the use is convenient, and the usability is strong.

The invention relates to the technical field of alumina catalyst carrier pellet production, and discloses an alumina catalyst carrier pellet forming device and method.The alumina catalyst carrier pellet forming device comprises a pelletizer, a discharging port formed in one end of the pelletizer, a driving box, a treatment box, a feeding box and a discharging port, the treatment box is fixedly connected to the end, away from the pelletizer, of the driving box, the inclination assembly is arranged in the treatment box, and the lifting assembly is arranged in the driving box; through cooperative use of a lifting assembly and an inclined assembly, a driving motor drives a screw plate to ascend through a driving screw, the screw plate drives a receiving box to ascend to the bottom of a discharging port, then carrier balls are received, then the driving motor is controlled to enable the driving screw to rotate reversely, and a first toothed plate drives a blocking plate to rotate through a rotating gear; and the barrier plate rotates to the top of the shaking plate, so that the carrier balls roll to the top of the shaking plate through the inclined block and the barrier plate, and the effect of preventing breakage is achieved.