42results about How to "Safe and durable" patented technology

A LED lighting chain is disclosed to include a front plug, a rear plug, an AC-DC converter formed of four rectifying diodes, and a LED serial set, wherein the LED serial set has a voltage dropping device formed of a resistance and two capacitors so arranged that changing the resistance and capacitors relatively changes the voltage of the LED serial set, and therefore increasing the number of LEDs does not change the brightness of the LED serial set. Further, a resistance is connected in parallel to each capacitor of the voltage dropping device so that when power is off, residual electric energy is discharged out of the capacitors to ensure safety of the LED lighting chain and to prevent damage to the LEDs during start.

The invention belongs to the technical field of concrete reinforcement, relating to utilizing fiber mesh grids to enhance the concrete strength. The arrangement of structural reinforcing steel, the thickness of concrete protective layers of main stress ribs and the grade of the concrete strength of the invention are designed according to the design criterion of a reinforced concrete structure. The invention is characterized in that before the initial setting of the concrete, fine concrete and the fiber mesh grids are cast on the outer side of the stretched and drawn area of the structure or the external surface of a large-scale integral structure, the total thickness of the fiber mesh grids and the fine concrete ranges from 10mm to 20mm, concrete with equal thickness of external surfaces are replaced, and the fiber mesh grids are evenly distributed in the fine concrete. The grid type or the plate type structure of the invention can adopt the structure of replacing partial reinforcing steel with the fiber mesh grids. The invention can effectively control cracks and solve the problems of concrete cracking and reinforcing steel corrosion, and has the advantages of firm bonding of the boundary surfaces of the fine concrete and the concrete, light self weight, low production cost, corrosion resistance, safe and durable usage, etc.

A chewable, biodegradable article for use as a pet toy comprises a matrix made of a natural polymer, a synthetic organic polymer or a mixture thereof, a natural or synthetic fibrous material that comprises fibers and that is bonded chemically or physically with the matrix material, and, optionally, includes one or more microbe inhibiting agents that inhibit the growth of microbes in or on the article. The presence of the fibrous material inhibits formation of sharp edges upon breakage when the article is chewed, thereby rendering the article safer when used by pets. Also disclosed are processes for manufacturing the above article.

The invention provides a self-adhesive label which comprises a surficial paper layer, a mucilage glue layer, a silicone oil layer and a base paper layer from top to bottom. The mucilage glue layer is made of solvent-free type acrylic PSA, and a thin film layer is further arranged on the surficial paper layer. The self-adhesive label is made of the solvent-free type acrylic PSA, has the advantages of being good in thermal endurance, environmentally friendly and firm in gluing, and due to the fact that the outermost thin film layer is arranged, the self-adhesive label further has the advantages of being durable and safe.

An anti-rapid drop bicycle rack and its joint in which the joint provides an anti-rapid drop function. The joint includes a holder block having two upright plates and a guiding hole on each upright plate, and a swing assembly including a hollow body, a mount, an actuating rod, a handle, an interference member and a spring. The bottom edge of each guiding hole defines a standing positioning groove at the front side, an inclined positioning groove at the rear side, and an intermediate positioning groove between the standing positioning groove and the inclined positioning groove. The interference member is elastically abutted against the groove bottom of one of the standing positioning groove, the inclined positioning groove and the intermediate positioning groove of each of the two guiding holes.

A locomotion device for physically disabled persons, comprising: a chassis (10) mounted onto a pair of rear wheels (11) and a pair of front swiveling wheels (12); a seat frame (20) frontally articulated to the chassis (10), so as to be displaced between a substantially horizontal first position and a second raised position that is markedly downwardly forwardly inclined; a backrest frame (30), which is interiorly articulated to a rear portion of the seat frame (20) and to the chassis (10), in order to be displaced between a first position, which is substantially orthogonal to the seat frame (20), and a second position, which is substantially coplanar to said seat frame (20); an impelling means (40), which is operatively coupled to the chassis (10) and to the seat frame (20), in order to provide the selective displacement of the latter between the first position and the second position; a movement locking means (50), which is mounted to the chassis (10) to allow the selective locking of the rear wheels (11); and a position locking means (60), which is mounted to the chassis (10) and operatively associated to the seat frame (20), in order to maintain the latter in any operational position between the first position and the second position.

The invention discloses a textile machinery supporting device. The textile machinery supporting device comprises a foundation base, fixing bases are fixedly connected to the left side and the right side of the upper surface of the foundation base, the interiors of the upper parts of the fixing bases are of hollow structures, sliding grooves are formed in the fixing bases, springs are fixedly connected to the bottoms of the sliding grooves, fixing rods are elastically and fixedly connected to the upper ends of the springs, the side surfaces of the fixing rods are connected to the side walls ofthe sliding grooves in a contact mode, two sliding rails are fixedly connected to the upper ends of the fixing rods, sliding cylinders are arranged on the inner surfaces of the two sliding rods in a sliding mode, fixing blocks are fixedly connected to the sides, far away from the sliding rails, of the sliding cylinders, and a supporting base is fixedly connected between the fixing blocks. According to the textile machinery supporting device, the supporting base can ascend and descend, the installation and fixation of textile machinery are facilitated, furthermore, the requirements of differentmachinery on different terrain clearances are met, in addition, in the working process of the textile machinery, through the fixing rods and the springs, vertical buffering in the fixing bases can berealized, so that a very good damping effect is achieved, equipment is safer and more durable, the service life is long, and the practicability is high.

The Chinese patented medicine for treating cholecystitis is prepared with fresh pig bile. The preparation process includes following steps: heating fresh pig bile inside enamel container in slow fire to become ropy while stirring to eliminate bubbles; cooling the container in water at 5-15 deg.c to solidify the ropy pig bile into solid; grinding solidified pig bile into powder and 200-mesh sieving; and capsulizing the pig bile powder in 0.32-0.38 g each. The Chinese patented medicine is used for treating cholecystitis, pancreatitis, thyroiditis, mastitis and toothache effectively and has no side effect and bad reaction.

A high capacity aluminum spot welding trans-gun includes a pair of opposed electrodes, a weld control that controls the operation of the trans-gun, and a transformer that regulates the voltage to the trans-gun having a primary input voltage and secondary output voltage. A liquid-cooled high voltage primary conductor electrically connects the weld control to the transformer primary input and a low voltage secondary conductor electrically connects the transformer secondary output to the welding gun to energize the opposed electrodes.

The invention discloses a multifunctional quickly-spliced environmentally-friendly firewall body, which comprises a wallboard body. The upper end surface and the lower end surface of the wallboard body are respectively and horizontally provided with a first splicing opening and a second splicing opening. The first splicing opening is a trapezoid protuberant base, and the second splicing opening isa corresponding trapezoidal slot which matches the protuberant base. Multiple rectangular cavities are arranged in the wallboard body. The cavities transversely penetrate through the wallboard body.The firewall body of the invention is prepared from the following raw materials (by weight): 30% of magnesium powder, 18% of plant fiber, 9% of kaolin, 20% of silica powder, 16% of a magnesium sulfatesolution, 1.5% of methenyl dinaphthalenesulfonic acid sodium salt, 2% of phosphoric acid, 1% of sodium benzene sulfonate, 0.2% of methylcellulose, 0.3% of casein, and 2% of gelatin. By using magnesium powder, waste tailings and plant fibers, wastes are changed into valuable things. The firewall body of the invention has characteristics of high strength, high toughness, light weight, energy conservation and waste utilization, and can be fireproof, waterproof, heat-preserved, thermal-insulated, sound-insulated, shock-resistant, impact-resistant and aging-resistant.

A slow-releasing Chinese medicine for treating coronary heart disease and angia pectoris and lowering blood pressure is prepared from epimedium, microcrystalline cellulose, carboxymethyl starch sodium, hydroxypropyl methyl cellulose and magnesium stearate.

The invention discloses a prefabricated stair and relates to the technical field of construction engineering. The prefabricated stair comprises a prefabricated stair body and two mounting platforms; mounting plates are arranged at the upper and lower ends of the prefabricated stair body; mounting grooves allowing the mounting plates to be embedded are correspondingly formed in the upper end facesof the mounting platforms; the prefabricated stair further comprises accommodating grooves, first inserted reinforcements and second inserted reinforcements; the accommodating grooves are formed in the upper end faces of the mounting platforms, are positioned in the sides, far away from the prefabricated stair body, of the mounting grooves and communicate with the mounting grooves; the first inserted reinforcement are positioned on the side walls, towards the mounting grooves, of the accommodating grooves; the second inserted reinforcements are positioned at the ends, far away from the prefabricated stair body, of the mounting plates; and when the mounting plates are positioned in the mounting grooves, the second inserted reinforcements are positioned in the corresponding accommodating grooves and are staggered with the first inserted reinforcement. Through arranging the accommodating grooves, the first inserted reinforcements and the second inserted reinforcements, cement mortar is filled in the accommodating grooves for fixation, so that the prefabricated stair is stronger in connecting structure and safer and more durable in overall application.

The invention discloses a compound radix salviae miltiorrhizae film slow-release tablet and a preparation method thereof. The compound radix salviae miltiorrhizae film slow-release tablet comprises a tablet core and coating liquid, wherein, the tablet core mainly comprises the following components by weight percent: 67.5% to 82.5% of radix salviae miltiorrhizae extract, 8.5% to 22% of red phenolic acid B, 8% to 22% of radix notoginseng, 0.10% to 0.15% of borneol and the balance of auxiliary materials; the coating liquid comprises the following components by weight percent: 1.0% to 5.0% of ethyl cellulose, 3.5% to 8.5% of lactose, 0.3% to 0.8% of dibutyl phthalate and the balance of ethanol water solutions. The invention adopts a peculiar formula and a preparation technique, the slow-release preparation obtained by preparation enhances the content of the effective component of the red phenolic acid B of the medicine, the content of the red phenolic acid B in each composition of single dose is more than 50%, the release of the medicine is controlled by a film slow-release technology, the bioavailability is enhanced, the curative effect of the medicine is prolonged, the drug administration frequency is reduced, and the invention has the advantages of small fluctuation of apex and vale blood concentration, light stimulation reaction of gastrointestinal tracts, lasting and safe curative effect and the like.