55results about How to "Not easy to squeeze and deform" patented technology

The invention discloses a plant rhizosphere box and the application thereof in the micro-domain research of wet land plant rhizosphere. The plant rhizosphere box comprises a box body, the inside space of the box body is partitioned into a root zone, a near root zone, a far root zone and a non-root zone and other different rhizosphere micro-domain partition zones by a number of rhizosphere partition plugging plates, water distribution units are arranged on the upper part of the box body, and water level regulating units are also arranged on the box body; and a water discharging device is arranged on the bottom of the box body. Through the adjustment of the intervals between the different rhizosphere micro-domain partition zones, the accurate observation and the research of the differentiation changes of different distances from the root system, and/or root zone soil, and/or interval water nutrients, pollutant, and/or microorganism are achieved. Based on the plant rhizosphere box, water flooded habitat of plants grown in wet land can truly be simulated, so that water flow conditions in the substrate can be maintained, and different water pressure retention time and water levels are arranged according to the needs, and the plant rhizosphere box has wide application prospect in plants, especially in the micro-domain research of wet land plant rhizosphere.

The invention relates to a double-coil contact structure of a vacuum arc-extinguishing chamber in a mechanical high-voltage DC circuit breaker, which is composed of two identical contact structures, and is characterized in that the conductive rod is a T-shaped cylindrical rod, the diameter of a large-end circular surface of the conductive rod is the same as the outer diameter of a circular coil and a circular contact, the large-end circular surface of the conductive rod, the circular coil and the circular contact are stacked and connected in turn, the two connecting surfaces are in plane support by using insulating ring gaskets made of polytetrafluoroethylene or an insulating material with higher strength except for the protruding parts, electric arc is generated between the two contacts when the contacts are separated, and the electric arc is distributed on the whole annular surface of the circular contact, so that the current is enabled to flow for a circle along the circular coil and then flow into the circular contact along a connecting conductor, and the current generates a large longitudinal magnetic field between the contacts when flowing along the circular coil. In addition, the structure is ensured not to be extruded and deformed, the structure is simple, the electric life of the contacts is longer, the electric arc is lengthened when being pulled into the coil, and the electric arc is enabled to be extinguished more easily.

The invention relates to the technical field of corrugated paperboards and provides a waterproof corrugated paperboard with good waterproof and dampproof effects, high strength and insusceptibility to deformation. The waterproof corrugated paperboard comprises a corrugated paperboard body, wherein the corrugated paperboard body is prepared from a plurality of layers of single-layer corrugated paperboards sprayed or dipped with a waterproof and dampproof agent by binding through an waterproof adhesive; the upper and lower surfaces of the corrugated paperboard body are provided with buffer layers; and the waterproof and dampproof agent is composed of the following raw materials by weight: 20 to 35 parts of dodecyl dimethyl benzyl ammonium chloride, 30 to 40 parts of octamethylcyclotetrasiloxane, 18 to 25 parts of sodium acrylate, 30 to 40 parts of N-isopropylacrylamide, 10 to 15 parts of butadiene, 10 to 15 parts phenyl diene, 5 to 10 parts of isproportionated potassium rosinate, 30 to 40 parts of trimethylol propane triacrylate, 20 to 30 parts of stearin, 3 to 10 parts of a pH regulator and 50 to 80 parts of water.

The invention provides a chocolate packing box, comprising a box body and a box cover. A sealing ring is arranged on the box cover and arranged between the box body and the boxy cover; the box cover is buckled with the box body by a buckling device; a door is arranged on the front surface of the box body and can be rotated through a rotary shaft; a buckle is formed on the door and used for closing or opening the door; the door and the rotary shaft are adaptive with the front surface of the box body. The chocolate packing box has a simple structure and is difficult to be extruded and deformed during transportation; because of the sealing ring, the chocolates are prevented from going bad resulting from the influencing of temperature and can be stored for a long time and the taste of the chocolates is not influenced; the door is arranged on the front surface of the box body and the chocolate packing box can store some things such as coins after the chocolates are eaten up; therefore, the chocolate packing box can be used again and does not result in a waste.

The invention provides a machining process for an extrusion die. The machining process is used for machining the extrusion die sleeved on a roll shaft of a granulator. A die blank with die holes is subjected to thermal treatment and finish machining, and each die hole is subjected to extrusion and grinding treatment. The thermally treated extrusion die has strong strength, cannot be cracked after being extruded for a long time, and is long in service life; the die holes are high in compressive resistance and bending resistance, and cannot be deformed by extrusion; after the finish machining, the extrusion die can rotate stably, and the yield is high; in addition, the grinding cost of the extrusion mode is low, and two die blanks can be ground by once extrusion, so that the grinding efficiency is high; and the die holes of the ground die blanks are low in roughness, and extruded products are easy to de-mold.

The invention provides a single-material gradient filter element. The filter element comprises at least two filter layers which have the same density and are formed by hot-melting and winding of polypropylene fiber yarns; and polypropylene fiber yarns of the filter layers from outside to inside have different thicknesses, and polypropylene fiber yarns of the outer layer are thicker than those of the inner layer. According to the single-material gradient filter element, gradient filtration of the filter element can be realized by changing thickness of the polypropylene fiber yarns of different filter layers. According to the gradient filtration realized by the manner, the density of each filter layer is the same, namely the compact degree of each layer is the same, so that the filter element has relative good strength and strong tensile strength, and has a relatively long service life since the filter element cannot be easily extruded and deformed in the filtering process. Furthermore, due to relatively high strength, a frame structure does not need to be added inside the filter element for supporting, so that the filtration flux and assimilative capacity can be ensured, and materials can be saved.

The invention discloses a lubricating oil environmental protection barrel with the bottom capable of being heated. The lubricating oil environmental protection barrel comprises a lubricating oil barrel and a heating device, the heating device is arranged below the lubricating oil barrel, a fixing hoop is arranged on the outer surface of the lubricating oil barrel and is welded into the lubricatingoil barrel, the heating device is embedded into the lubricating oil barrel, a barrel cover is arranged above the lubricating oil barrel and is arranged in the lubricating oil barrel in an embedded manner, an oil adding pipe is arranged above the barrel cover and is embedded into the barrel cover, and an oil outlet is formed below the lubricating oil barrel and is fixedly connected into the lubricating oil barrel. According to the lubricating oil environmental protection barrel with the bottom capable of being heated, when lubricating oil is stored in the oil barrel, lubricating oil solidification cannot be caused by external temperature undercooling; and a heating inner wall is arranged in the inner wall of the oil barrel, the heating inner wall is controlled by the heating device to heatoil materials, the lubricating oil keeps at the temperature at which solidification cannot be achieved, the aim of preventing undercooling solidification of the lubricating oil is achieved, and the shortcoming that solidification can be caused in a traditional device when the temperature is too low is avoided.

The invention relates to a leakage-resisting square tunnel for prestressed concrete flexible sockets. The leakage-resisting square tunnel comprises a square concrete body, a square steel wire mesh is arranged inside the square concrete body along the lengthwise direction of the square concrete body, a plurality of prestressed steel bars are evenly welded to the square steel wire mesh at intervals along the lengthwise direction of the square steel wire mesh, and a plurality of reinforcing ribs identical to the square concrete body in length and thickness are evenly arranged on the square steel wire mesh at intervals. Concrete members have prestressing force, so that leakage-resisting effect is good, connecting performance is high, vibration resistance is high, and waterproofness is good; the square steel wire mesh is arranged inside the square concrete body, the prestressed steel bars are welded to the square steel wire mesh, and the reinforcing ribs are arranged on the square steel wire mesh, so that the square concrete body is high in bending performance, less prone to cracking down and extruding to deform by soil, long in service life, fast in assembling, efficient and good in quality, and labor cost is greatly lowered.

The invention belongs to a toothpaste automatic extrusion device with a toothbrush, which is used in a personnel mouth cavity health center; at present, a toothpaste case has the problems of insanitary usage and storage commonly, particularly for tourism and business trip, stocking deformation and diseases spreading of the toothpaste case are caused easily; aiming at overcoming the disadvantages, the invention provides the toothpaste automatic extrusion device with the toothbrush; the toothpaste automatic extrusion device is characterized in that: the toothpaste case is arranged in a toothpaste case sleeve, an extrusion roller is arranged on the toothpaste case, a reinforced rid plate and a locating sheet are processed on the toothpaste case sleeve, a toothbrush room is processed below the toothpaste case sleeve, a cover is arranged at the top end of the toothbrush room, stripe grains are processed on the peripheral surface of the extrusion roller, and the rib plate is processed in the extrusion roller; the sanitation condition of the toothpaste case storage is greatly improved, and the diseases are hard to spread.

The invention discloses a gift packing box. The gift packing box is characterized by comprising a gift storing part and a sealing cover. The gift storing part comprises an upper display surface, a bottom surface, a first side supporting part and a second side supporting part. The bottom surface is an arc-shaped surface, and the middle of the arc-shaped surface is sunken downwards. The upper display surface is a cambered surface, and the middle of the cambered surface protrudes upwards. The upper edge of the bottom surface is fixedly connected with the upper edge of the upper display surface. The lower edge of the bottom surface is fixedly connected with the lower edge of the upper display surface. The first side supporting part and the second side supporting part are bent and arranged between the two sides of the bottom surface and the two sides of the upper display surface respectively. The upper display surface, the bottom surface, the first side supporting part and the second side supporting part jointly form a three-dimensional gift storing box body. The upper display surface is provided with an observation window. The sealing cover is totally or partially arranged on the observation window in a covering mode. The sealing cover is connected with the bottom surface through a detachable connecting mechanism. The gift packing box has the advantages of facilitating selection and purchase by people and being capable of being sent by post directly and not prone to extrusion deformation.

The invention provides a light transmitting brick and a preparation method thereof. The light transmitting brick includes a brick body and one or more light transmitting components. The light transmitting components are distributed in the brick body, one end of each light transmitting component is located on a first side face, and the other end of each light transmitting component is located on asecond side face; at least one reinforcing rib is connected on each light transmitting component or each light transmitting component is at least connected with one reinforcing rib, and the reinforcing ribs are arranged in the brick body. In addition, according to the preparation method for the light transmitting brick, plastic optical fibers continuously and successively penetrate into a plurality of pairs of through holes, so that the optical fibers between the pairs of through holes are kept a tight state so as to be not easily deformed. The problems that the light transmitting brick is easily extruded to deform in the preparation process and the optical fibers and the brick body are easy to fall off or loose during demolding are well solved.

The invention discloses a brushing method for a reaction chamber upper cover of a metal organic matter chemical vapor deposition system. The brushing method comprises the steps that after growing of an epitaxial slice in a reaction chamber of the metal organic matter chemical vapor deposition system is completed, the temperature of circulating water entering the reaction chamber upper cover is reduced, the reaction chamber upper cover is made to be at the constant temperature of 20-30 DEG C, and then attachments on the reaction chamber upper cover are brushed linearly in one direction through a bristle brush. Due to the fact that the surface temperature of the reaction chamber upper cover is reduced, the temperature of the attachments attached to the reaction chamber upper cover is reduced, and the situation that the attachments tend to be in a liquid state is changed to the situation that the attachments tend to be in a solid state, so that the attachments are easy to brush away, cannot adhere to the bristle brush and also cannot block a small hole of the reaction chamber upper cover. According to the brushing method for the reaction chamber upper cover of the metal organic matter chemical vapor deposition system, by reducing the temperature of the reaction chamber upper cover, the temperature of the attachments on the reaction chamber upper cover is reduced, so that the attachments tend to be in the solid state and are easy to brush away; therefore, the attachments are prevented from being in the liquid state, being liable to be adhered to the bristle brush and blocking the small hole of the reaction chamber upper cover, meanwhile, the reaction chamber upper cover is relatively brushed cleanly, and the brushing efficiency is improved.

The invention discloses a 220-grade enameled copper round wire for an automobile starting motor. The enameled copper round wire comprises a silica gel strip; a flat aluminum strip is spirally wound onthe silica gel strip; a tooth groove which extends along the spiral direction of the flat aluminum strip is formed in the outer side surface of the flat aluminum strip; a toothed belt which extends along the spiral direction of the flat aluminum strip is arranged on the inner side surface of the flat aluminum strip; a copper layer meshed with the tooth groove is arranged on the spiral surface ofthe flat aluminum strip; a plurality of paint-placing grooves are formed in the outer surface of the copper layer; the outer surface of the copper layer is coated with high-temperature-resistant insulating paint; the thickness of the copper layer ranges from 0.15mm to 0.25mm; the silica gel strip is a silica gel strip with the heat-resistant temperature of 250 DEG C or above; the paint-placing grooves are spirally wound on the outer peripheral surface of the copper layer; and a plurality of paint-placing grooves are uniformly distributed in the outer surface of the copper layer. The enameled copper round wire has the advantages that the copper consumption is small, and the cost of manufacturing the automobile starting motor is low, the coil winding is easy, and the stability of the insulation performance is high.

The invention discloses a rubber pipe discharging device. The rubber pipe discharging device comprises a feeding disc and a rubber pipe cut-off and discharging machine which are sequentially arranged. The rubber pipe cut-off and discharging machine comprises a conveying wheel set, a rubber pipe cut-off mechanism and a guide pipe for a rubber pipe to penetrate. The conveying wheel set is internally provided with a rubber pipe penetrating gap. The guide pipe comprises two sections, a cutter is correspondingly arranged between the two sections, an opening is formed in the pipe wall of the guide pipe in the axial direction, and the part, corresponding to the opening, of the guide pipe is provided with a laser sensor used for detecting the end portion of the rubber pipe. The rubber pipe discharging device is reasonable in structural design, feeding is conducted through double power sources, and it is guaranteed that the end portion of the rubber pipe is not prone to being pulled; belt conveying is adopted, the contact area is large, skidding is not likely to happen, and the rubber pipe cannot be subjected to extrusion deformation; the laser sensor is used for controlling the cut-off length of the rubber pipe, precision is high, and accuracy and reliability are achieved; and automatic rubber pipe cutting-off and discharging are achieved, the production efficiency is high, and cost is reduced.