287results about How to "Improve anti-shedding effect" patented technology

The invention relates to a method for reserving a hole on a wall to fix an object and an expansion bolt and a special borer for the method. The method mainly includes: drilling a blind hole according to a traditional method; boring a expansion hole which has larger diameter than the blind hole at the bottom of the blind hole with the special borer so as to form a stepped face; inserting the expansion bolt into the blind hole; mounting the object to be fixed; and sleeving a washer and tightening a nut with a wrench. During the tightening process, a lamina at the tail of an expansion sleeve is pressed by the bolt tail to curve outwardly so as to form a turnup clamping to the stepped face. Due to the fact that slide static friction force generated by radial extrusion force between the lamina at the tail of the expansion sleeve and concrete is changed into axial clamping force of the lamina to the concrete, anti-off performance and safety performance of the expansion bolt is improved. The method is suitable for fixing heavy and vibrative objects such as a high-power air-conditioning outdoor unit, a ceiling fan, and supports of large billboards.

The invention discloses a novel anti-falling safety socket, and relates to a power socket. The novel anti-falling safety socket comprises a socket panel, a button, a clamping block, a first spring, a supporting seat, a plug bush, a plug bush base, a safety protection door and a second spring. The button is assembled on the socket panel, the top end of the button penetrates through a button hole formed in the socket panel and stretches out of the socket panel, a U-shaped groove is formed in the tail end of the button, and a spring protrusion is further arranged on the bottom face of the button. The clamping block is obliquely arranged, the top end of the clamping block is clamped in the U-shaped groove of the button, and the bottom end of the clamping block abuts against a clamping block groove formed in a bottom face rib plate of the socket panel. The U-shaped groove is formed in the tail of the button, the two ends of the clamping blocks are arranged in the U-shaped groove and the clamping block groove formed in the bottom face rib plate of the socket panel respectively, it is ensured that the clamping block cannot fall off in the use process, and normal work of the socket is guaranteed.

The invention discloses a direct insertion type quickly-connecting pipe fitting. The direct insertion type quickly-connecting pipe fitting comprises a pipe fitting body, a core body, a fastening sleeve and an internal tooth washer, wherein the core body is connected with the first end of the pipe fitting body, the core body is sleeved with the fastening sleeve, one end of the fastening sleeve is detachably connected with the first end of the pipe fitting body, and the other end of the fastening sleeve is a gradual contractile opening. The internal tooth washer comprises a washer body and a plurality of elastic teeth connected with the washer body. The teeth incline towards the second end of the pipe fitting body, and the washer body is installed between the fastening sleeve and the pipe fitting body. According to the direct insertion type quickly-connecting pipe fitting, damage to the internal tooth washer can be avoided in the installing process, so that selectivity of materials of the internal tooth washer is increased, the internal tooth washer can be made of materials with high toughness, the anti-disengaging effect can be improved, cost of the internal tooth washer is reduced, cost of the direct insertion type quickly-connecting pipe fitting is correspondingly reduced, and meanwhile the direct insertion type quickly-connecting pipe fitting is good in sealing performance and has good market prospects.

The invention discloses an anti-crack and anti-falling coating and a preparation method, which belong to the technical field of coatings. The coating is prepared from the following components: modified polyurethane, modified epoxide resin, glass fiber, aluminum oxide, sodium stearate, paste attapulgite clay, putty cream, kieselguhr, a defoaming agent, a filling agent, pigment, and appropriate amount of water. The preparation method comprises the steps of weighing the modified polyurethane and the modified epoxide resin, adding into a reaction kettle, adding appropriate amount of water, and carrying out mixed reaction to obtain a mixture a1; adding the paste attapulgite clay, uniformly stirring, putting in an ultraphonic condition, and obtaining a mixture a2; adding the putty cream, the kieselguhr, the defoaming agent and the filling agent, stirring, shearing, adding a pigment, and uniformly mixing to obtain the coating. The coating provided by the invention not only has a better waterproof and anticorrosion effect, but also has a better anti-crack and anti-falling performance. In addition, the preparation method is simple and practicable, and has a better application value.

The invention discloses a punching die system which is long in life. The punching die system comprises a conveying mechanism, a box body forming mechanism, a top folding mechanism and a glue sealing mechanism; the conveying mechanism comprises conveying brackets, a plurality of conveying drums distributed in a spaced manner in the length directions of the conveying brackets, driving components fordriving the conveying drums to rotate, and cover pieces matched with the driving components in a telescopic movement manner; each conveying drum comprises a body part, a connecting part, and a connecting part matched with the corresponding cover piece; disengagement prevention pieces matched with the corresponding cover piece in a disengagement prevention manner, and an unlocking device are arranged on each connecting part matched with the corresponding cover piece; and each unlocking device is used for removing the disengagement prevention matching between one cover piece and the corresponding disengagement prevention pieces. With the arrangement of the cover pieces, the lengths of the conveying drums can be set to be less than the distance between the left conveying bracket and the right conveying bracket, so that when the disengagement prevention matching between each cover piece is the corresponding connecting part is removed, the cover pieces can retract into the corresponding conveying bracket, the conveying drums can be taken down and taken out directly from the conveying brackets, the disassembly and assembly are convenient, and the punching die system is convenient for maintenance.

The invention discloses an anti-falling computer interface device. The invention belongs to the technical field of computers, and the problem that when the computer interface is connected with the plug, the computer interface is easily dragged off due to external force is solved; the device is characterized by comprising a computer interface magnetic attraction assembly, a plug mechanism and an interface mechanism, clamping arms of the computer interface magnetic attraction assembly are symmetrically arranged on the lifting plate. The clamping arms are connected with a clamping jaw; a computerinterface magnetic attraction assembly provided with the clamping jaw and the clamping arms is installed on an interface mechanism. According to the invention, the anti-falling clamping grooves usedfor clamping the clamping jaws are formed in the plug mechanism, after the plug mechanism is inserted into the interface mechanism, the clamping jaws are clamped into the anti-falling clamping grooves, falling prevention of the computer interface device is achieved, stability is good, the plug mechanism is effectively prevented from being dragged by external force to fall off, and the anti-fallingeffect is good.

The invention relates to an improved demountable tanker carrier. The improved demountable tanker carrier comprises a chassis, a lifting mechanism, a hydraulic cylinder and a ladder stand, wherein a damping locking protective device is mounted on the chassis and comprises a damping component and a locking device; and the locking device is in locking connection with the lifting mechanism which is in a folding state, and the damping component is in damping connection with the lifting mechanism which is in the folding state. In the invention, the ladder stand is arranged on the chassis, the widthof the demountable tanker carrier in running meets the national standard requirement due to the folded ladder stand; when the improved demountable tanker carrier is in use, the ladder stand can be unfolded so that personnel can climb conveniently; meanwhile, the damping locking protective device is also arranged on the chassis, the damping component is in contact with the lifting mechanism so as to provide the damping protection for the lifting mechanism and the tanker carrier; and a locking pin shaft is inserted in the pin hole of the lifting mechanism to lock the lifting mechanism so as to prevent the lifting mechanism from pitching caused by shake in a transportation process.

The invention relates to a well cementation two-interface cementing quality evaluation device and method. The device consists of a cylindrical kettle body 1, a core 4, a fluid pressure pump 11, a pressure sensor 12 and the like. The kettle body is provided with an upper seal cover 2 and a lower seal cover 3 which are detachable, the upper seal cover is provided with a liquid and gas inlet 6, a pressure relief valve 9 and the pressure sensor 12, and the lower seal cover is provided with liquid and gas outlets 7; and the core 4 is arranged in the kettle body, a filter cake is arranged on the surface of the core, and a cement ring is arranged in an annular space between the core and the kettle body. The method includes the steps of vacuumizing the core with the filter cake to enable the coreto be saturated in resin; placing the core in the kettle body, adding well cementation cement slurry, curing for a certain period of time, and forming the cement ring between the core and the inner wall of the kettle body; injecting fluid into the kettle body; and recording the rupture pressure generated when the two-interface filter cake is broken to form a fluid moving channel, and obtaining thetwo-interface cementing coefficient. The well cementation two-interface cementing quality evaluation device and method can effectively avoid fluid seepage from the core, truly reflect the well cementation two-interface cementing quality and have broad market prospects.

The invention relates to an elevator center opening door head provided with a multifunctional limiting plate structure. The elevator center opening door head comprises a bottom plate, a left hanging plate, a right hanging plate and a latch hook mechanism, wherein a guide rail is arranged on the bottom plate along the length direction; the two ends of the upper part of the bottom plate are separately provided with a rope wheel; the left hanging plate and the right hanging plate are separately provided with a guide wheel; the left and right hanging plates are arranged in the guide rail in a guiding manner; the middle part of the bottom plate is provided with a fixing hook of the latch hook mechanism; an elastic hook of the latch hook mechanism is arranged on the left hanging plate; a counterweight rope wheel is arranged on the left hanging plate; a rubber post is arranged on the right hanging plate; the elevator center opening door head is characterized in that a limiting base is fixedly arranged on the middle part of the bottom plate; the limiting base is provided with a bottom assembly plate, a left side vertical plate and a right side vertical plate; the right side vertical plate of the limiting base corresponds to the rubber post in position; and a counterweight steel wire rope fixing end assembly hole is formed in the left side vertical plate. By adopting the elevator center opening door head, assembly space on the hanging plates can be effectively saved; the counterweight steel wire rope fixing base and the limiting plate are integrated through the limiting base, so that the technique is greatly simplified; certain working procedures are omitted; and production cost is lowered.

The invention discloses an anti-drop and sealing device for a filter bag of an electropulsing bag type dust collector. The anti-drop and sealing device for the filter bag comprises a cylinder, wherein the thickness of a cylinder wall is 1 to 5cm; a ring groove is arranged inside the cylinder wall; the size of the ring groove is suitable for embedding of the edge of a filter bag mouth; meanwhile, an elastic part is arranged inside the ring groove; the lower side surface of the ring groove is an inclined plane, wherein the inclined plane and a horizontal plane form an angle of 2 to 6 degrees; the edge of a ring groove opening is not a seamed edge, but is a circular arc transition; and the diameter of a circular arc is equal to the external diameter of the cylinder. The device provided by the invention has the following advantages: the filter bag can be connected with an air outlet of the electropulsing bag type dust collector in cooperation with the anti-drop and sealing device, so the connection of the filter bag and the dust collector is more firmly; sealing property is good; the problems like dust leakage from the outer edge of the filter bag and dropping of the filter bag can be completely eradicated; environment pollution is effectively reduced; and operation troubles of the dust collector are decreased.

The invention discloses an anti-drop socket-clevis eye which belongs to connection devices of high-voltage line hardware and mainly overcomes the defect that a ball head of a ball head hanging ring is easy to eject from the socket-clevis eye as a spring bolt structure is not reasonable in the traditional socket-clevis eye. The anti-drop socket-clevis eye comprises a socket-clevis eye which is provided with a jack and an inverted T-slot, wherein the jack is communicated with one end of the inverted T-slot. The anti-drop socket-clevis eye is characterized by also comprising an anti-drop baffle plate and fastening bolts, wherein the anti-drop baffle plate comprises a bottom plate and a vertical plate connected with the upper side of the bottom plate, the fastening bolts are used for connecting the socket-clevis eye with the anti-drop baffle plate, a bolt bottom plate through hole is arranged at one end of the bottom plate, a lug boss which is provided with a bolt hanging plate through hole is arranged at the notch end of the inverted T-slot of the socket-clevis eye, the other end of the bottom plate and the vertical plate are respectively positioned in the jack of the socket-clevis eye and at the notch end of the inverted T-slot, and the fastening bolts are positioned in the bolt bottom plate through hole and the bolt hanging plate through hole. The invention has the advantages of simple structure, convenient disassembly, assembly and overhauling and good anti-drop effect.

Provided are a hydraulic pipe cleaner and a cleaning method thereof. The pipe cleaner comprises an elastic rubber water diversion tube, one end of the elastic rubber water diversion tube is connected to a booster pump, and the other end of the elastic rubber water diversion tube is connected to a self-expanding nozzle. The method includes the steps of connecting the booster pump and the self-expanding nozzle to both ends of the elastic rubber water diversion tube respectively, wherein the self-expanding nozzle is composed of a guide ring and a horn-shaped bag, a large opening of the horn-shaped bag is connected to the guide ring, and a small opening of the horn-shaped bag is connected to the other end of the elastic rubber water diversion tube; inserting the self-expanding nozzle into a pipe to be cleaned, wherein the guide ring of the self-expanding nozzle forms preliminary sealing to the pipe wall of the pipe to be cleaned and slides in the pipe to be cleaned to drive the horn-shaped bag of the self-expanding nozzle to enter the pipe to be cleaned and settle down; starting the booster pump and filling water to the pipe to be cleaned to constantly increase the pressure of the cleaning water until clogging material in the pipe to be cleaned can be washed away by the high pressure cleaning water.

The invention relates to an artificial prosthesis of a long bone diaphysis tenon and mortise structure. A protruding face I and a rectangular protrusion I of a prosthesis proximal handle connecting part I are inserted into a strip-shaped groove II and a rectangular notch II of a prosthesis far-end handle connecting part II respectively, a protruding face II and a rectangular protrusion II of the prosthesis far-end handle connecting part are inserted into a strip-shaped groove I and a rectangular notch I of the prosthesis proximal handle connecting part I respectively, after a semicircular groove I of the prosthesis proximal handle connecting part I is in butt joint with a semicircular groove II of the prosthesis far-end handle connecting part II, a cylindrical counter bore is formed, tenon is inserted into the cylindrical counter bore formed in one end of the cylinder, and the tenon locks the connecting part I and the connecting part II together. Prosthesis fixation is firm and reliable, the operation is simple and convenient, the operation time is shortened, the operation effect and efficiency are improved, and operative complications are reduced. The artificial prosthesis can be widely applied to different defects of long bone diaphysis, the minimum osteotomy amount can reach 3.0 cm, and the maximum opportunity is provided for reserving normal bone tissue and joints as much as possible.

The invention relates to a novel thermosetting ultraviolet stabilizer and a preparation method thereof. The preparation method particularly comprises the following steps: (1) mixing 4,4'-dihydroxybenzophenone, an amine compound and paraformaldehyde, adding dimethylbenzene, and enabling reaction for 4 h at 100 DEG C; then washing with a sodium hydroxide solution and deionized water, filtering, spin-flashing and drying to obtain a thermosetting ultraviolet stabilizer resin monomer; (2) before use, dissolving the resin in a solvent, uniformly coating the surface of a target material requiring protection with the solvent, and heating and curing after volatilization of the solvent to form a protective layer with an ultraviolet protection function on the surface of the target material. The novel thermosetting ultraviolet stabilizer and the preparation method thereof have the advantages that the novel ultraviolet stabilizer is thermosetting resin, the surface of the target material can be uniformly coated with the thermosetting resin, and curing can be performed to form the ultraviolet protective layer, the adhesiveness is good, and as coating is performed on the well processed and formed material surface, influence on the processing process and the intrinsic properties of the material can be avoided.

The invention provides a coil opening device, and relates to the technical field of coil opening equipment. The coil opening device comprises a base, a sliding seat, a lifting mechanism, an inner blocking seat, a bottom plate, springs, outer blocking seats and moving mechanisms; and the lifting mechanism is arranged on the base, the sliding seat pushes the bottom plate to move up and down in the axial direction of the inner blocking seat and the outer blocking seats through the lifting mechanism, the outer blocking seats move on connecting rods on the sliding seat, the side edges of the outerblocking seats and the side edge of the sliding seat are used as spring seats of the springs, the inner blocking seat is fixedly arranged on the base, and the moving mechanisms are arranged under thebase. According to the coil opening device, coiling and coil opening of a coiled aluminum rod and a coiled copper pipe are realized, the coil opening outer diameter of the raw material can be adjusted, the anti-dropping effect is good, time and labor are saved, safety and reliability are achieved, observation is convenient, structure is simple and practical, use is convenient, the unwinding effectis good, and production efficiency is greatly improved.

The invention discloses a demolding coating for building formworks, which is applied to the surface of a building formwork to arrive at corrosion resistance and self-demolding. The demolding coating comprises, by mass, 100 parts of thermosetting resin and a curing agent, 1-300 parts of graphite, and preferably further comprises 0.01-30 parts of a coupling agent, and 0.1-100 parts of aids. Preparation and application methods include: using the coupling agent to treat graphite, mixing well all the components, applying the mixture evenly to the surface of the building formwork, and allowing solidifying. After being applied once, the demolding coating is reusable in self-demolding of building formworks and can be reused over 200 times; using a demolding agent is not required, so that process steps are fewer, and material and manpower cost is reduced.

The invention relates to a planar four-way outer joint, and belongs to the field of infusion tubes. The planar four-way outer joint comprises a central cavity body, wherein an outer joint is arranged on each of the upper, lower, left and right parts of the central cavity body; convex rings are arranged on the inner walls of the outer joints, and are inwards inclined. The planar four-way outer joint is applied to the connection of infusion tubes in industrial production, can be used for quickly and conveniently connecting pipelines in four different directions in the same plane in a splicing way, and has good sealing and anti-separation effects.

The invention belongs to the technical field of fences or indoor/outdoor greenings, and relates to a telescopic greening frame. A plurality of parallel and radially arranged second struts which are in cross arrangement with the first struts are laminated on the upper surface or the lower surface of the plurality of parallel and radially arranged first struts; riveting holes arranged at the laminating parts of the first struts and the second struts are hinged through rivets so as to form a latticed greening frame; the side wall of a spliced eye on each rivet axle is provided with more than one clamping hole. The telescopic greening frame is simple in structure, convenient for installation, and low in production cost; the artificial plant which is spliced in the greening frame is hard to fall off and beautiful in appearance. The telescopic greening frame is suitable for the indoor/outdoor isolation zone greening or space greening.

The invention provides a disconnection-prevention electrical connector. The disconnection-prevention electrical connector comprises a socket, a mobile ring, an air inflation hole, an isolation air bag, a first electrical cylinder, an electromagnet, a fixed plate, a connection rod and a second electrical cylinder, wherein the first electrical cylinder is arranged at an outer end of the connection socket, the isolation air bag is arranged at a left end of the first electrical cylinder, the mobile ring is arranged on an inner wall of the isolation air bag, the mobile ring is assembled on the connection socket, the air inflation hole is formed in a front end of the isolation air bag, and by the design, the protection effect is improved. The second electrical cylinder is arranged at the outer end of the connection socket, the connection rod is arranged at an outer end of the second electrical cylinder, the fixed plate is arranged at a left end of the connection rod, the electromagnet is embedded to a left end of the fixed plate, the isolation air bag is arranged at a left side of the second electrical cylinder, the connection rod is arranged at an outer side of the isolation air bag, and by the design, the disconnection-prevention function can be achieved. The disconnection-prevention electrical connector is convenient to use and operate and is good in stability and high in reliability, and the working stability is improved.

The invention discloses an environment-friendly weatherproof waterproof coating, belonging to the technical field of coatings. The environment-friendly weatherproof waterproof coating comprises the following raw materials by weight: 50-55 parts of an EVA emulsion, 10-15 parts of carbon fibers, 12-14 parts of quartz powder, 6-8 parts of kaolin, 10-12 parts of talcum powder, 3-5 parts of hydrophobic organosilicon powder, 5-7 parts of aluminum powder, 2-4 parts of zirconium dioxide, 4-6 parts of titanium dioxide, 18-20 parts of cement, 1 to 3 parts of carboxymethyl cellulose, 4-5 parts of stearic acid, 2-4 parts of paraffin, 5-7 parts of sodium phosphate, 2-4 parts of dodecanol ester, 1-3 parts of a wetting agent, 6-9 parts of a plasticizer, 3-5 parts of an antifoaming agent, 1-2 parts of a preservative, 2-4 parts of a dispersant and 35-40 parts of water. The invention also discloses a preparation method for the environment-friendly weatherproof waterproof coating. The weatherproof waterproof coating provided by the invention has the advantages of simple preparation, low environmental pollution, strong adhesion and good water resisnce, acid and alkali resistance and high-temperature resistance.