13results about How to "Easy to scratch" patented technology

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 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 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 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 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 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.