43results about How to "Blocking gap" patented technology

The invention relates to a brush bar which comprises a fixing part and a bristle part. The bristle part comprises multiple bristle wires which are distributed in the width direction of a brush, one ends of the multiple bristle wires are fixed by the fixing part, the bristle part further comprises soft sheets, and one ends of the soft sheets are fixed by the fixing part. According to the brush bar, the soft sheets are additionally arranged in the bristle wires, on one hand, the support force of the brush can be increased; on the other hand, gaps between the bristle wires are blocked, the brush bar is more beneficial for cleaning, and the vacuum degree can be increased when the brush bar is used for dust collection.

The invention relates to a cement solidified waste. The cement solidified waste comprises 13-27% of converter slag, 8-12% of desulphurization ash, 25-32% of chromium slag, 5-15% of fly ash, 4-8% of cement, 4.5-6.5% of emulsified bitumen, 1-2% of fibers, and the balance of water. The converter slag and the chromium slag are mixed and are ground to 40-100 meshes, all raw materials are mixed and stirred until uniformity, the obtained mixture is put in a die, and is solified to form a mold, and the die is removed 24-36h later. The Cr<6+> leaching concentration is greatly reduced, and it is guaranteed that the concentration of Cr<6+> in a leaching concentration is lower than the concentration standard of national standard GB5085.3 danger waste upper limit.

Provided is an electrical junction box having a novel structure, said electrical junction box having a connector exposed to the outside of a case through an opening of the case, and being capable of preventing foreign material from entering through a gap between the opening and the connector. A protruding plate section (28) is formed to a connector (22) housed in an opening (36) of a case (18), said protruding plate section extending parallel to a circuit board (20), a cover plate section (42) for covering the protruding plate section (28) is formed on the inner circumferential surface (40a) of the opening (36) of the case (18), said cover plate section being positioned on the opposite side to the circuit board (20) with respect to the protruding plate section (28), and the gap between the connector (22) and the opening (36) of the case (18) is closed by means of the protruding plate section (28) and the cover plate section (42).

The invention discloses an anti-hydrophobic soil stabilizer and a preparation method thereof. The preparation method of the anti-hydrophobic soil stabilizer comprises the following steps in parts by weight: dissolving 3 parts by weight of oleamide and 6 parts by weight of triisopropanolamine in alcohol to obtain a mixture; then, reacting the mixture with 5 parts by weight of carbolic acid and adding water into a reaction kettle to synthesize the anti-hydrophobic soil stabilizer. The anti-hydrophobic soil stabilizer is applied to paving a road, performing phosphogypsum environment-friendly treatment, performing slope treatment and performing stone carving artwork repair. The anti-hydrophobic soil stabilizer disclosed by the invention can be used for improving a soil granule structure, lowering the soil particle interface activity, enabling the original cohesion inside the soil particles to recombine to produce irreversible cohesion, blocking soil mass gaps to enable the soil particles to lose capillary water absorption, directly mixing with the natural soil and lowering the consumption and saving over 50% of the energy resources by enabling a weight ratio of the anti-hydrophobic soil stabilizer to natural soil to be smaller than and equal to 0.1%, and can not cause pollution on the natural environment after being mixed into the soil.

There is disclosed a dustproof piece for linear slideways, whose main use is to prevent the foreign body from entering into the gap between the slider and the sliderway. At one end of the dustproof piece is disposed a fastening part and at the other end is disposed an inserting part. Two end caps are mounted at both ends of the slider. In the position of one end cap relative to the fastening part is set a check block for fastening of the fastening part. In the position of the end cap relative to the inserting part is set a stop part with locating holes to provide the inserting part for planting and spacing.

The invention discloses a heating device adopting PTC heating and air supplying for an integrated bathroom. The heating device comprises a box body, a panel, a heating chamber and an air exchange chamber. The heating chamber and the air exchange chamber are formed in the box body. The heating chamber comprises a heating device and an air supplying device. The heating device is arranged on one sideof the heating chamber, and comprises a ceramic PTC heating piece and a heating piece support. The air supplying device is arranged in the middle of the bottom of the heating chamber, an air exchangedevice is arranged in the middle of the bottom of the air exchange chamber, an air exchange air outlet is formed in one side of the air exchange chamber, and the heating chamber and the air exchangechamber are covered with a cover plate. The panel is arranged on the top of the box body, a warm air outlet is formed in the side, close to the heating chamber, of the panel, an air exchange exhaust inlet is formed in the side, close to the air exchange chamber, of the panel, and an LED lighting lamp is arranged in the middle of the panel. Indoor air is cyclically heated, the heating time is saved, the heating efficiency is improved, the energy consumption is reduced, air entering the box body can be conveniently filtered, the heating element is kept smooth, and the heat transfer efficiency isimproved.

The invention relates to an acidic color fixing agent and a preparation method and application method thereof, wherein the acidic color fixing agent is prepared from, by mass, 40-50% of resin, 20-40%of glacial acetic acid, 2-8% of an activator, 5-20% of a solvent, 8-20% of a sulfonating agent, 10-30% of deionized water, and 3-5% of a stabilizer, wherein the acidic color fixing agent has the advantages that a color fixing working liquid is stable, agglomeration particles are avoided, the generation of color fixing spots in the color fixing process of a fabric can be avoided, the color change of the fabric after color fixing is reduced, and the color fastness to washing, the color fastness to perspiration and the like are improved.

The invention provides a surface protecting agent for fair-faced concrete. The surface protecting agent is characterized by being composed of the following raw materials, in parts by weight: 40-60 parts of a phosphorylcholine polyricinoleate fluorosilicone copolymer, 10-15 parts of magnesium gluconate hydrate, 10-15 parts of attapulgite powder, 10-15 parts of surface-modified porous hollow cage-shaped titanium oxide, 5-10 parts of alginic acid fibers, 2-5 parts of a defoaming agent, 30-50 parts of water, and 1-3 parts of a PH regulating agent. The invention also discloses a preparation methodof the surface protecting agent for the fair-faced concrete. The surface protecting agent for the fair-faced concrete disclosed by the invention has low preparation costs, good durability, good protection to the fair-faced concrete and excellent comprehensive performance, can realize blocking of capillary pores of the surface of the fair-faced concrete, make a surface structure of the concrete more compact and prevent water and other erosive media from entering the concrete, and is safe and environmentally-friendly during use.

A highly weather-resistant silicone waterproof gasket and a manufacturing method thereof. The highly weather-resistant silicone waterproof gasket of the present invention consists of the following components by weight: silicone rubber: 70-90 parts, anti-aging agent: 0.5-1.5 parts, accelerator: 0.5-2 parts, internal mold release agent: 1 -5 parts, white carbon black: 3-15 parts, high-efficiency dispersion reinforcing agent: 3-5 parts, vulcanizing agent: 1-7.5 parts. The manufacturing method is as follows: first mix the silicone rubber with processing aids; then add a vulcanizing agent for cross-linking and vulcanization to form vulcanized silicone rubber; A molding process is carried out to obtain the high weather resistance silicone waterproof gasket. The prepared product has excellent strength, elongation at break, resilience and tightness, and can effectively solve the leakage problem existing in the current large-scale steel structure roof while reducing the engineering cost.

The invention discloses bare concrete. The bare concrete is characterized by being prepared from, by weight, 5-10 parts of surface modified nano-boron fiber, 5-10 parts of kaolin, 10-15 parts of illite powder, 20-30 parts of gravel, 5-10 parts of vermiculite sand, 20-30 parts of silver sand, 40-50 parts of Portland cement, 1-5 parts of a compound additive and 20-30 parts of water. The compound additive comprises, by weight, 20-25 parts of a phosphate borate copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, 2-4 parts of porous magnesium silicate, 0.5-1 part of a defoaming agent, 0.8-1.5 parts of polyaminopropyl biguanide, 0.5-2 parts of hydroxypropyl cyclodextrin, 1-3 parts of an activator and 80-100 parts of water. The invention further discloses a preparation method of the bare concrete. The bare concrete is high in compressive strength, good in corrosion resistance, impermeability and crack resistance and excellent in comprehensive performance, and production and application are safe and environmentally friendly.

The invention discloses a method for improving microbial cemented sand. The method comprises the following steps that 1), bacteria are cultured, then the OD 600 value and the activity value of the bacterial liquid are tested, and the bacterial liquid is stored; 2), a cementing solution is prepared; 3), a soil body is prepared; 4), a modifier is prepared; 5), the modifier is added to the soil body,and the weight ratio of the modifier to the soil body is 1:1,000; 6) then, the bacterial liquid is added, the weight ratio of the bacterial liquid to the soil body is 100:1; 7), the cementing solution is added, wherein the weight ratio of the cementing solution to the soil body is 3:10; and 8), finally, an allicin aqueous solution with the mass fraction being 2.5% is added, and the weight ratio of the allicin aqueous solution to the soil body is 1:1,000. By the adoption of the method for improving the microbial cemented sand, the unconfined compressive strength and the residual strength of the sand soil can be remarkably improved, in particular, the defects of the original brittleness of the microbial cemented sand can be improved, the toughness in the damage process is increased, the positive effect is achieved for improving the safety and stability of the engineering structure, and the method is suitable for wide application and popularization.

The invention discloses a valve rod assembly on an electronic expansion valve. The valve rod assembly comprises a valve rod and a bearing pedestal. The valve rod is arranged in a through hole of the bearing pedestal. The valve rod assembly is characterized by comprising a rod body, an inner axial hole column is formed at the middle and lower end of the rod body, a first transverse hole column communicated with the inner axial hole column is formed on the outer wall of the bottom of the inner axial hole column, and a second transverse shaft hole communicated with the through hole is formed in the middle of the wall body of the bearing pedestal. The valve rod assembly can eliminate axial pressure born by the valve rod, moreover, the good sealing effect is achieved, and meanwhile the cost is reduced to meet the market requirements.

The invention discloses a split type crystallizer. The split type crystallizer comprises two large surface walls, two small surface walls and a plurality of graphite flakes, wherein the larger surface walls and the small surface walls jointly form a crystal passage in a surrounding mode, and the graphite flakes are shaped like strips and vertically arranged on the inner wall of the crystal passage. According to the split type crystallizer, the graphite flakes are arranged on the inner wall of the crystal passage, and therefore the high temperature resistance is improved compared with a crystal passage with chrome plated on the inner wall, and the service life of the split type crystallizer is prolonged. In addition, the structure spliced by the multiple strip-shaped graphite flakes is adopted, damaged graphite flakes can be replaced conveniently, and therefore the maintenance cost of the split type crystallizer is lowered, and only the partial damaged graphite flakes are replaced rather than all the graphite flakes or even the whole crystallizer.

The invention discloses a door and window frame material structure, which mainly comprises a first frame strip, a second frame strip and a third frame strip. Ends of the same sides of the first frame strip and the second frame strip are respectively connected with two ends of the third frame strip, and the first frame strip is longer than the second frame strip. Due to the structural arrangement, the door and window frame material structure has the advantages that an assembling process of a door and window frame material can be simplified, gaps generated during usage of the door and window frame material can be covered, external dust and mosquitoes can be stopped from entering an indoor environment via the gaps, and the like.

The invention discloses a closure device for avoiding marginal bone loss around a dental implant. The closure device comprises an alveolar bone, a gum, the implant and a healing base. The gum is placed on the upper part of the alveolar bone, and the alveolar bone below the gum is provided with the implant. A healing membrane annular structure is arranged around the joint between the healing base at the bottom of the gum and the implant, the inside of the gum is provided with the healing base, and the implant stretches out of the gum through the healing base to be exposed to the oral cavity, the upper part of the implant is provided with the healing base, and the healing base forms a biological closure with the gum by the smooth surface. During a non-buried bone horizontal dental implant operation, a bone sealing ring can be formed around the implant under the healing base by utilizing a healing membrane to effectively block soft tissues from growing into the gap between the implant andthe bone wall, promote the metabolism of the edge or neck bone tissues and avoid the marginal bone loss. The device provides a new way of biological closure of the implant.

The invention discloses a consolid soil stabilizer and a preparation method thereof. The consolid soil stabilizer is prepared from the following raw materials in parts by mass: 7-12 parts of SOLIDRY (SD), 2-3 parts of bacillus, 5-7 parts of polyol, 5-10 parts of triisopropanolamine, 10-15 parts of nano calcium carbonate, 3-5 parts of sodium diethylenetriamine pentacarboxylate, 8-12 parts of calcium lactate, and 1-3 parts of nano silicon particles. The structure of soil particles can be changed, the interfacial activity of the soil particles can be reduced, and original cohesion in the soil particles is recombined, and irreversible cohesion is generated; soil gaps are blocked, so that the soil particles lose the capillary water absorption characteristic, and the purposes of permeation resistance, bearing capacity improvement, deformation reduction and long-term soil stabilization are achieved.

The present invention relates to a brush strip, which comprises a fixing part and a bristle part, the bristle part includes a plurality of bristle filaments, the plurality of bristle filaments are distributed along the width direction of the brush, and the plurality of bristle filaments are distributed along the width direction of the brush. One end of the bristle filament is fixed by the fixing part, and the bristle part further includes a soft sheet, and one end of the soft sheet is fixed by the fixing part. The present invention adds soft flakes to the bristles, on the one hand, it can increase the support force of the brush, and on the other hand, it also blocks the gaps between the bristles, making it more powerful and clean, and can also improve the vacuum degree during vacuuming.

The invention relates to the technical field of punching, and discloses a punching mechanism for automobile reinforcing plate machining. The mechanism comprises a punching table, and the punching table is provided with a punching head. The mechanism is characterized in that the punching table is provided with a punching groove located below the punching head; the upper part of the punching grooveis provided with a positioning groove; the two sides of the positioning groove are respectively provided with a fixing part; each of the fixing parts comprises a fixing base and a sliding groove; fixing blocks slidably connected with the sliding grooves is arranged inside the sliding grooves; a plurality of supporting shafts are arranged in the punching groove; each of the supporting shafts comprises a hollow outer shaft; a supporting table is arranged on the upper portion of each of the outer shafts; bulges vertical to the outer shafts are fixed to the lower portions of the supporting tables;inner shafts are vertically connected with the interiors of the supporting tables in a sliding mode; elastic parts fixedly connected with the outer shafts are arranged at the bottoms of the inner shafts; and pushing blocks for pushing the bulges are arranged on the inner shafts. The punching mechanism for automobile reinforcing plate machining is simple in structure, and plates around holes can be prevented from deforming greatly during punching, so that the machining efficiency of reinforcing plates is improved.

The invention discloses a fair-faced concrete, which is characterized in that it is made of the following raw materials in parts by weight: 5-10 parts of surface-modified nano-boron fibers, 5-10 parts of kaolin, 10-15 parts of illite powder, and 20 parts of gravel ‑30 parts, 5‑10 parts of vermiculite sand, 20‑30 parts of fine sand, 40‑50 parts of Portland cement, 1‑5 parts of composite additives, 20‑30 parts of water. The composite additive includes the following components by weight: 20-25 parts of phosphate-based boric acid-based copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, porous silicon Magnesium acid 2-4 parts, defoamer 0.5-1 part, polyaminopropyl biguanide 0.8-1.5 parts, hydroxypropyl cyclodextrin 0.5-2 parts, activator 1-3 parts, water 80-100 parts. The invention also discloses a preparation method of the fair-faced concrete. The fair-faced concrete disclosed by the invention has high compressive strength, good corrosion resistance, impermeability and crack resistance, excellent comprehensive performance, and safe and environment-friendly production and use.

The invention discloses an MEMS microphone, a micro-electromechanical structure and a manufacturing method thereof. The micro-electromechanical structure includes: a first back polar plate having a first through hole; a second back polar plate provided with a second through hole and positioned on the first back polar plate; a vibrating diaphragm located between the first back polar plate and the second back polar plate, wherein the vibrating diaphragm and the first back polar plate form a first variable capacitor, and the vibrating diaphragm and the second back polar plate form a second variable capacitor; a first protective layer, wherein the first protective layer and the vibrating diaphragm are positioned on two sides of the first back polar plate respectively and are used for preventing foreign matters from entering a gap between the first back polar plate and the vibrating diaphragm through the first through hole; a second protective layer, wherein the second protective layer andthe vibrating diaphragm are positioned on two sides of the second back polar plate respectively and are used for preventing foreign matters from entering a gap between the second back polar plate andthe vibrating diaphragm through the second through hole; and a second connecting part positioned on the surface of the second back polar plate and fixedly connected between the second protective layerand the second back polar plate, so that the second protective layer is separated from the second back polar plate.

The invention discloses a manufacturing method of a 500kV line type lightning arrester, which adopts a specially manufactured tool to assemble a core group, adopts multiple axial sealing, adopts a method of filling silicone rubber in a composite jacket and the like. The problem that the resistor discs are damaged due to gaps or mutual extrusion and friction caused by deformation of the core penetrating rod is solved, the problem that flashover occurs in a resistor disc column due to the fact that a large gap exists between the resistor discs and the core penetrating rod is solved, and the problems that the head and the tail of the core penetrating rod are penetrated and the internal sealing problem of the lightning arrester is not easy to guarantee are solved.

The invention discloses a filtering and cooking device for processing beef soup dumplings and a cooking method thereof, relates to the technical field of cooking, and aims to solve the problems that according to an existing filtering and cooking device for processing beef soup dumplings, water needs to be boiled for a long time due to steam generation and heating, and the water purification step is inconvenient; the time consumed for producing and processing the soup dumplings is long; and the water is easily polluted. A filtering pipe is arranged on one side of the steam generation box, a connecting flange buckle is arranged at the upper end of the filtering pipe, a steamer is arranged at the upper end of the steam generation box and arranged in the steam generation box, a water feeding bin is arranged in the spraying table, a porous bearing plate is arranged above the spraying table, and a water discharging bin is arranged in the spraying table. A spraying driver is arranged at the upper end of the porous bearing plate, spraying head rotating strips are arranged on the two sides of the spraying driver, and a water suction pipe is arranged in the water feeding bin.

The present invention provides a heat insulation gasket comprising: a heat insulation sheet having both end portions adhered to each other to form a heat insulation layer therein in the longitudinal direction thereof; and an adhesive portion having one side attached to the heat insulation sheet and the other side attached to a door or a frame of the door.

The present invention provides an ultraviolet irradiation device capable of preventing a luminous tube from being affected by an alkaline atmosphere without adversely affecting measurement, and an analysis device provided with the ultraviolet irradiation device. By forming the first protective film (731) on the outer surface of the luminous tube (71) formed of quartz material, the luminous tube (71) is prevented from being affected by the alkaline atmosphere. Since the first protective film (731) can prevent the chemical reaction of the quartz material in the alkaline atmosphere and prevent the quartz material from eluting, the luminous tube (71) can be prevented from being affected by the alkaline atmosphere. Also, since the first protective film (731) is formed on the outer surface of the arc tube (71), it is possible to prevent a gap from occurring between the outer surface of the arc tube (71) and the first protective film (731). Therefore, the water sample entering the gap between the outer surface of the luminous tube and the first protective film does not mix into the water sample for the next analysis, and it is possible to prevent such mixing of the water sample from adversely affecting the measurement.