25results about How to "Easy to scratch" patented technology

The invention belongs to the technical field of mine ventilation, and discloses a coal mine underground ventilation adjusting device which comprises a water storage box. Through cooperation of the interception assembly, the exhaust assembly and other structures, the exhaust assembly drives air in a mine and water sprayed by the water supply assembly to flow towards the side face of the filter plate and drives the spiral disc to rotate, and pulverized coal contained in the air is retained on the side face of the filter plate; a spiral disc rotates to concentrate pulverized coal and water to the middle of a filter plate and fall into a storage box, when the pulverized coal in the storage box is too much, the pulverized coal can descend, the pulverized coal is washed away by the water, a connecting rod can drive a guide ring to descend and rub the inner wall of a collecting pipe, and a mixture of the pulverized coal and the water adhered to the inner wall of the collecting pipe can also fall into the storage box. And therefore, the descending speed of the storage box is increased, the working efficiency of the device is improved, the water supply assembly can lift the two-way telescopic rod to the initial state again, and then the device can conduct pulverized coal cleaning and collecting work in a reciprocating mode.

The utility model relates to brick paving auxiliary technical field, concretely is a kind of brick paving device for municipal road construction, including board car frame, it is characterized by: the front end below of board car frame is equipped with front auxiliary wheel, and the rear end below of board car frame is equipped with rear pressure wheel, the middle part of board car frame is equipped with middle gusset plate, and middle gusset plate surface is supported and is equipped with middle frame, and middle frame front side is supported and is equipped with support seat, the middle part of board car frame front side is equipped with work window, and work window left side is equipped with brick cutting assembly, and rear pressure wheel front side is equipped with scraper assembly. The utility model is convenient for the auxiliary flattening and construction cutting block auxiliary according to municipal road construction needs, and it is favorable to improve use operation efficiency.

The utility model discloses a protective shell and a mobile phone shell. The protective shell comprises a back plate and a frame formed by bending and extending the edge of the back plate towards one side, wherein the frame at least comprises an upper side plate and a lower side plate; an avoiding groove which extends towards the back plate and penetrates from the inner surface of the upper side plate or the lower side plate to the outer surface of the upper side plate or the lower side plate is formed in the end face, away from the back plate, of the upper side plate or the lower side plate. The depth of the receding groove is smaller than the size of the upper side plate or the lower side plate provided with the receding groove in the depth direction of the receding groove. In this way, the convenience of disassembly and assembly of the protective shell can be improved, and the problem that the avoiding groove scratches the operator hand of a user is solved.

The preparation method of the yellowing-resistant nylon particle composite material comprises the following steps: S1, weighing 100 parts by weight of nylon, and adding the nylon into a reaction kettle; s2, adding 2, 2, 2-trifluoroethanol as a solvent into the reaction kettle, and stirring to form a uniform nylon dissolving solution; s3, conveying the nylon dissolving solution into a spray dryer through a peristaltic pump, and performing atomization, drying and powder collection under the protection of nitrogen; s4, placing the powder in a vacuum drying oven, and drying at 25 DEG C for 3 hours to obtain nylon powder; s5, mixing the nylon powder with the following raw materials in parts by weight: 1-2 parts of an ultraviolet light absorber, 1-2 parts of a hindered phenol antioxidant, 2-4 parts of adipic acid, 0.5-1.5 parts of sebacic acid, 0.1-0.5 part of dicumyl peroxide and 8-10 parts of silane coupling agent modified mica powder; and S6, carrying out melt blending on the mixture obtained in the step S5 in a twin-screw extruder to obtain the yellowing-resistant nylon particle composite material.

The utility model provides a clamping and assembling device which is used for assembling a to-be-assembled part and comprises a first clamping plate, a second clamping plate, a third clamping plate, a first connecting rod, a second connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a fifth connecting rod, a sixth connecting rod, a fifth connecting rod and a sixth connecting rod, a notch of the first accommodating groove is formed in the surface, close to one side of the second clamping plate, of the first clamping plate; an operating hole penetrating through the second clamping plate is formed in the second clamping plate, and the operating hole is used for operating and connecting a fastener for connecting the first assembly part and the second assembly part; when the first clamping plate and the second clamping plate are oppositely buckled, the part to be assembled is located between the first clamping plate and the second clamping plate, and the fastener is connected with the first assembly part and the second assembly part through the operation holes. According to the clamping assembly device, the alignment efficiency of hole sites in the to-be-assembled part can be improved, and the to-be-assembled part is prevented from being scratched during assembly.

The utility model discloses an urban road traffic intersection commanding device, which relates to the technical field of traffic commanding, and comprises a base, a storage bin, connecting pipes and a rain baffle, the top of one side of the base is provided with the storage bin, the bottom in the cavity of the storage bin is fixedly connected with a plurality of connecting pipes which are mutually sleeved, and the rain baffle is fixedly connected with the connecting pipes. A buckle mechanism is arranged between the side walls of each connecting pipe, a connecting bin is fixedly connected to the top of each connecting pipe, a connecting rod is rotationally connected to the interior of a cavity of each connecting bin through a bearing, and connecting blocks are fixedly connected to the two ends of each connecting rod. According to the base, the storage bin, the connecting pipe and the rain baffle, on the basis that the rain baffle is folded and stored, the device can be conveniently moved to other traffic intersections for commanding, and therefore the problem that an existing intersection commanding device is inconvenient to fold and store to be taken back and move to other intersections to be used after a rain shelter is built is solved.

The utility model discloses a kind of plastic particle unpacking feeding devices, including screening frame, back material cylinder and be set to the upper loading frame of screening frame one side;The inside of screening frame is provided with sieve plate, the below of sieve plate is provided with guide chute, the below of guide chute is provided with the feeding frame for plastic particle feeding, the bottom of screening frame two sides is connected to the top of feeding frame by vibration component;The inner wall of screening frame is provided with back material hole, the below of back material hole is provided with the discharge hopper of cooperation back material cylinder to large particle plastic back material, the inside of back material cylinder is provided with beating component;The top of upper loading frame is installed with the conveying roller for plastic particle bag conveying, the side of conveying roller is provided with the pushing component of material bag positioning and disassembling;The utility model can conveniently carry out the screening of particle after plastic particle is unpacked, timely suitable plastic particle is fed, and can be smashed to the plastic particle that coagulates into group, effectively guarantee the production and processing efficiency of plastic particle.

The utility model relates to the technical field of production stirring, in particular to a stirring device for titanium dioxide production, which comprises a stirring tank body, a tank upper cover is assembled at the top of the stirring tank body, a feeding funnel is assembled at the top of the tank upper cover, and the lower part of the side edge of the feeding funnel is assembled at the top of the tank upper cover through a mounting frame in a supporting manner. A feeding hopper is arranged in the stirring tank body, a filter screen cover is assembled in the feeding hopper, a stirring inner shaft is arranged in the stirring tank body, the lower end of the stirring inner shaft is inserted and assembled in the center of the bottom of the stirring tank body, an upper scraping plate, a middle scraping plate and a bottom scraping plate are sequentially assembled on the side wall of the stirring inner shaft from top to bottom through a stirring frame, and a stirring rod is assembled on the side wall of the stirring frame. According to the utility model, the interior of the tank body can be conveniently stirred and scraped according to use requirements, and meanwhile, the filtering operation can be conveniently carried out during feeding, so that the stirring operation is more convenient.

The utility model discloses a socket structure with an overload protection function, which comprises a device main body and an overload protection mechanism, and the overload protection mechanism is arranged at the upper end of the device main body and used for power-off protection. The overload protection mechanism comprises a rear machine cover, one end of the rear machine cover is provided with a machine box, an inner supporting piece is installed in the machine box, and one end of the inner supporting piece is provided with an induction piece. And the safety of the device main body is improved, and the effect of prolonging the service life of the device main body is achieved by installing a protection mechanism at one end of the device main body.

The utility model relates to the field of feeding devices, in particular to a clamping jaw and a feeding mechanism, the clamping jaw comprises a base and two hook claw assemblies arranged at the bottom of the base at intervals in the first direction, each hook claw assembly comprises one or more hook claws arranged side by side in the second direction, and the second direction is perpendicular to the first direction; the hook claw comprises a puncturing end capable of puncturing the bag body; the hook claws can turn over around the rotating axis parallel to the second direction so as to clamp and release the bag body. During clamping, the hook claw drives the puncture end to puncture the upper bag surface of the bag body through overturning, so that at least part of the hook claw enters the bag body to hook the bag body; the driving part is used for driving the claw to overturn around the claw; when the feeding mechanism comprising the clamping jaw is used for carrying materials, the manual labor amount is reduced, the carrying efficiency can be improved, and the risk that operators inhale material dust is reduced.

The invention provides a thermal insulation intermediate material for building interior and exterior walls and a preparation method thereof. The silicon-based composite material is prepared by synthesizing a silicon-based material and an inorganic material and is in a regular porous shape. The intermediate material has the advantages of high temperature resistance (more than 1000 DEG C), light weight (160 Kg / m < 3 >), heat conductivity coefficient of 0.027-0.038 w / mk, good heat insulation performance and fireproof performance, excellent film-forming property, easiness in blade coating and convenience in construction, and is widely applied to heat insulation scenes of inner and outer walls of buildings.

The utility model relates to a portable distance fixing device which comprises a horizontal support, two hole opening cups are arranged on the horizontal support in a sleeved mode, one hole opening cup is fixed at one end of the horizontal support, the other hole opening cup is connected with the horizontal support in a sliding mode and located through a bolt extending in the radial direction, and the tops of the hole opening cups are coaxially arranged on the horizontal support in a sleeved mode through sleeves. Wherein a through pipe is fixedly arranged at the top of a sleeve of the hole opening cup fixed to the end of the horizontal support, an L-shaped distance fixing rod is arranged in the through pipe in a penetrating mode, the end of the horizontal section of the distance fixing rod penetrates into the through pipe, is connected with the through pipe in a sliding mode and is positioned through a bolt extending in the radial direction, and the vertical section of the distance fixing rod vertically extends downwards to be in the same level with the bottom end of the hole opening cup. The efficiency is high.

The utility model relates to the technical field of dehydrogenation production, in particular to a high-pressure dehydrogenation kettle for producing iminodiacetic acid, which comprises a kettle main body, the kettle main body comprises a lower kettle shell and an upper kettle shell, a support is assembled on the side edge of the lower kettle shell in a supporting manner, and a pressurizing butt joint seat and a pressure relief exhaust valve are assembled on the two sides of the left side of the upper part of the upper kettle shell. A feeding seat is assembled at the top of the upper kettle shell, a discharging seat is assembled at the bottom of the lower kettle shell, a stirring transverse shaft is transversely inserted in the middle of the kettle main body, a stirring frame is assembled on the inner side of the stirring transverse shaft, and a transmission drum sleeves the left side of the stirring transverse shaft and is inserted in the left side wall of the kettle main body in a penetrating manner; and a scraping frame is assembled in the transmission rotary drum. The reaction kettle is convenient for pressurizing and stirring according to requirements to promote rapid reaction and scratch the kettle wall, and raw materials are not easy to adhere to the kettle wall, so that the reaction kettle is more convenient and efficient to use.

The present invention belongs to the technical field of polymer materials, and discloses a polypropylene material, a preparation method and an application thereof. The polypropylene material of the present invention comprises the following components by weight: 69-90 parts of polypropylene, 5-15 parts of alumina powder mixture, 0.2-1 parts of silane coupling agent, 0-1 parts of primary antioxidant, 0-1 parts of secondary antioxidant, and 0-1 parts of light stabilizer. The present invention uses a mixture of alumina powder with large and small particle sizes to fill polypropylene, which improves the material's ability to resist deformation during scratching, makes scratches shallow, avoids the material from being easily scratched by hard objects, and has little effect on gloss. It is suitable for the fields of automotive parts and home appliance housings.

The utility model discloses a kind of heavy bag packing machine automatic bag feeding device, it includes bottom plate, the bottom plate top right side is provided with conveying assembly, the conveying assembly includes two clamping frames, rotatably connected with conveyor belt between two clamping frames, the inner wall both sides of conveyor belt are fixed with rotating roller, the clamping frame left end of front side is fixed with driving motor, the driving motor output penetrates to clamping frame inside, and fixedly connected between and rotating roller, two clamping frame top are provided with pressing assembly between, the pressing assembly includes first top frame, the both ends of first top frame bottom are fixedly connected between clamping frame top, and first top frame top center is fixed with first cylinder, the first cylinder output penetrates to first top frame inside, and first cylinder output is fixedly connected with pressing plate, start first cylinder, promote first cylinder output to push pressing plate and move downwards, to press every single supply bag, promote it can be in stable state.

The utility model relates to the technical field of vehicle connector accessories, in particular to a copper lining core riveting internal thread connector which comprises a connector body, a lining core and an annular film bag, the connector body comprises a connecting part and a buckling part, the connecting part is provided with a connecting hole, the connecting hole is provided with an internal thread, the buckling part is provided with a buckling hole, and the buckling hole is provided with an external thread. An assembling hole is further formed between the connecting hole and the buckling hole, the lining core comprises an abutting part, a middle part, an inner supporting part and a center hole, the inner supporting part penetrates through the assembling hole and extends into the buckling hole, the middle part is arranged in the assembling hole, the abutting part is arranged in the connecting hole, the center hole penetrates through the lining core, and glue is arranged in the annular film bag; when the buckling part is buckled and pressed, the annular film bag is broken, and the end part and the side wall of the rubber pipe are filled with glue, so that the rubber pipe has the advantages of higher connection strength after extending into the buckling and pressing hole, better sealing performance and suitability for high-pressure oil ways and high-frequency bumpy road conditions.

This invention discloses a fan cleaning device and a range hood. The fan cleaning device includes: a fan, which includes a volute housing with an air inlet formed thereon, and a mesh cover with mesh openings at the air inlet; and a cleaning mechanism for cleaning the mesh cover. The cleaning mechanism includes a cleaning head array. When the fan is in operation, the cleaning head array is located outside the fan and opposite the mesh cover. When the fan is in cleaning mode, the cleaning head array can pass through the mesh openings to scrape away grease from the walls of the mesh cover that define the mesh openings. Compared with the prior art, the advantages of this invention are: by setting the cleaning head array so that it is located outside the fan when the fan is working normally, the impact on the airflow of grease is reduced. When the fan needs cleaning, the cleaning head array contacts the mesh cover by scraping, which can directly act on the mesh cover's openings, restore the original flow area, maintain airflow, reduce noise, and has low energy consumption without heating, and also avoids the side effects associated with high-temperature cleaning.

The utility model relates to the technical field of household appliances, and discloses microwave cooking equipment, which comprises a shell, a microwave heating device, a microwave heating device and a microwave heating device, and is characterized in that a cooking cavity is formed in the shell; the stirring device is arranged at the microwave inlet and comprises a stirrer for stirring microwaves; the partition plate is arranged between the cooking cavity and the stirrer in a separated mode and used for isolating water vapor, and microwaves can pass through the partition plate; the stirring device further comprises an anti-scraping piece arranged on the stirrer, the anti-scraping piece comprises an anti-scraping part, the anti-scraping part protrudes out of the side wall of the side, facing the partition plate, of the stirrer, and the hardness of the anti-scraping part is smaller than that of the stirrer. The anti-scraping part is arranged on the stirrer, when the stirrer abnormally jumps, the anti-scraping part can firstly make contact with the partition plate, the partition plate cannot be scratched due to the fact that the hardness of the anti-scraping part is far smaller than that of the stirrer, the situation that the partition plate is scratched by the harder stirrer, the performance of a product is affected can be effectively avoided, and the use experience of a user is improved.

The itch rubbing device for livestock breeding comprises a cattle body brush, a cleaning assembly is installed on the outer side of the cattle body brush, the bottom end of the cleaning assembly is fixedly connected with an abdomen itch rubbing assembly, the abdomen itch rubbing assembly comprises a mounting strip, rotating shafts are fixedly connected to the positions, close to the upper ends, of the two sides of the mounting strip correspondingly, and mounting sleeves are movably connected to the outer sides of the rotating shafts; a second cattle body brush is fixedly connected to the front end of the mounting sleeve, a push rod is movably connected to the position, close to the bottom end, of the rear end of the second cattle body brush, a movable block is movably connected to the lower end of the push rod, the movable block is movably connected with the mounting strip, and a fixing bolt penetrates through the side wall of the movable block and is movably connected to the side wall of the movable block. And dirt and animal hair on the cattle body brush can be cleaned.

The utility model discloses cutting and cleaning integrated equipment for special glass production, which comprises a placement seat, supporting seats are fixedly arranged on two sides of the top end of the placement seat, electric sliding rails are fixedly mounted at the top ends of the two supporting seats, and sliding seats are arranged on the surfaces of the two electric sliding rails. According to the cutting and cleaning integrated equipment for special glass production, the guide pipe is pushed to move downwards through the two electric telescopic rods, the multiple high-pressure spray heads are made to be close to special glass, then the two sliding seats are driven by the two electric sliding rails to move synchronously, and the cutting and cleaning integrated equipment for special glass production is achieved. And meanwhile, water in a water storage tank is guided into a guide pipe through a water pump, and then the water is sprayed out through the high-pressure nozzles, so that the surface of the special glass is conveniently subjected to high-pressure washing, and the situation that disintegrating slag is left and an operator is easily scratched is avoided.

The invention relates to the technical field of semiconductor silicon material manufacturing, in particular to a resin grinding wheel for a silicon carbide silicon boat and a manufacturing method thereof. The grinding wheel comprises a base body and a grinding material layer arranged on the outer circumferential end face of the base body, a through hole is formed in the middle of the base body, and the grinding material layer comprises, by weight, 40-50 parts of resin powder; 10 to 20 parts of diamond; 10 to 20 parts of copper powder; 5-10 parts of microcrystalline corundum; 5-10 parts of reinforced fibers; and 5-8 parts of a wetting agent. The resin grinding wheel for the silicon carbide boat and the manufacturing method of the resin grinding wheel have the advantages that the shape retention is high, the cutting efficiency of the grinding wheel can be improved, the surface roughness of the silicon carbide boat is low, and grinding marks and grinding stripes are avoided.

The utility model belongs to the field of quality inspection equipment, specifically is a kind of quality inspection equipment for optical lens processing, including base;The upper end of the base is connected with air float clamp, the outside of air float clamp is connected with adjusting assembly, the upper end of the base is connected with quality inspection assembly;The air float clamp includes disc, the disc is fixedly connected at the upper end of base, the outside of disc is fixedly connected with ring one;By setting air float clamp, when carrying out quality inspection to optical lens, open air pump, air pump will compressed air pass through gas pipe, main pipe, communicating pipe, finally respectively input each annular pipeline, finally from jet pipe spouts, the airflow formed air film can be placed on its optical lens suspended support, to optical lens play the role of supporting positioning, it is convenient to carry out quality inspection to optical lens, and will not directly form contact with optical lens, prevent because mechanical clamping easily scratch mirror surface coating.

The utility model discloses a terminal assembly capable of preventing a terminal from warping and scraping and a card connector thereof. The terminal assembly comprises an insulating body, a plurality of terminals and a plurality of terminals, the plurality of terminals are fixedly held on the insulating body through integral injection molding, and each terminal comprises a fixed part, an elastic part and a welding part; the terminal accommodating holes are formed by penetrating positions, corresponding to the elastic parts, of the insulating body along the vertical direction, and parts of the elastic parts protrude out of the upper surface of the insulating body to form contact parts; the free end of the elastic part obliquely extends downwards to form a terminal head part; the terminal receding grooves are formed in the insulation body and located at the front end positions of the terminal heads, and the terminal containing holes are separated from the adjacent terminal receding grooves through separation parts; the spacing part comprises a pressing part which covers the upper surface of the terminal head part and a sliding guide part which is attached to the lower surface of the terminal head part. The problem that the head of the terminal is warped and scratches a butt-joint electronic card can be solved.

The invention provides a preparation method of an aluminum oxide polishing solution applied to gallium arsenide, and relates to the field of polishing materials.The preparation method comprises the steps that a protective layer is formed on the surface of an aluminum oxide raw material through a protective agent, then strong acid is added for ball milling, centrifugal separation is conducted after ball milling, washing is conducted to be neutral, neutral sediment is obtained, the neutral sediment is filtered after being dried, and the aluminum oxide polishing solution is obtained; the method comprises the following steps: firstly, pre-treating an alumina raw material, then removing gamma-phase alumina in the alumina raw material to obtain pre-treated alpha-phase alumina, then adding a copolymer dispersant to enable the dispersion stability of the alpha-phase alumina to be higher, and then adding a chelating agent and an oxidizing agent to form a polishing solution finished product. According to the preparation method, the purity of alpha-phase aluminum oxide is improved, the dispersity of the grinding material is further guaranteed by combining the steric hindrance effect of the copolymer dispersing agent, the alpha-phase aluminum oxide and the copolymer dispersing agent are in synergistic interaction, and the polishing rate and the polishing quality are improved.