109results about How to "Reduce the risk of slipping" patented technology

The invention relates to a highway green belt and a construction method thereof and belongs to the technical field of civil engineering. The highway green belt comprises a slope green belt and an isolating green belt, wherein the slope green belt comprises a base body, a reservoir, a drainage ditch and a planting pit, the isolating green belt comprises a fence, a soil layer, a water storage layer and a base layer, and the reservoir is connected with the water storage layer through connecting pipelines. The construction method comprises steps as follows: base body construction of the slope green belt, construction of the isolating green belt and cultivation of green plants. According to the highway green belt and the construction method, the cost is low, the maintenance frequency and maintenance cost are reduced, construction is simple, death of trees is reduced to the maximum, and management and maintenance of the green belt are facilitated.

The invention discloses a four-claw type automatic book taking device for a library. The four-claw type automatic book taking device comprises an AGV, a vehicle-mounted miniature bookshelf, a liftingmechanism, a book accessing mechanism and a CCD camera, wherein the vehicle-mounted miniature bookshelf is arranged at the right end above the AGV, the lifting mechanism is arranged at the left end ofthe upper part of the AGV, the book accessing mechanism is arranged on the upper part of the lifting mechanism, and the CCD camera is arranged at the right end of the book accessing mechanism. The four-claw type automatic book taking device for the library can be applied to the library and an archives center, the working pressure of a manager can be relieved, and meanwhile, the working efficiencyis improved; and a four-claw type accessing mechanism can automatically complete book storage and book taking work without damaging books, and large-scale modification on an existing library does notneed to be carried out.

The invention relates to a prosthetic foot with a structural component (10) having proximal attachment means (2) for fastening the prosthetic foot to a below-knee tube, a below-knee shaft or a prosthetic knee joint, with a forefoot portion (20) secured or formed on the structural component (10), and with a heel-side spring-damper system (40) which is assigned to the structural component (10) and which is compressed at a heel strike and bears on a sole-side guide element (30), wherein the structural component (10) is designed as a leaf spring which extends in a posterior direction from the proximal attachment means (2), forms an arch and is guided in an anterior and distal direction, wherein the arch protrudes posteriorly beyond the guide element (30).

The invention discloses an anti-light-loading-skidding square and round pocket holder, and relates to the technical field of cylindrical roller bearing. The problems that an existing cylindrical roller bearing is prone to slipping under the working condition of high speed and light load, the failure of a bearing is caused, and the life and reliability of the bearing are seriously affected are solved. A holder is arranged between an outer ring and an inner ring, and the holder is in a circular ring shape. A plurality of square pockets are evenly formed on the circumference of the circular-ring-shaped holder. Cylindrical rollers are arranged in the square pockets of the holder. A round pocket is formed between the two adjacent square pockets of the holder. The number of the square pockets inthe holder is equal to the number of round pockets in the holder. The anti-light-loading-skidding square and round pocket holder is used to improve the bearing capacity of a single roller of the cylindrical roller bearing, reduce the weight of the holder, and solve the problem of bearing slippage.

The invention discloses a construction method of a loess tunnel entrance section through a landslide mass. The method comprises the following steps that 1, an entrance soil layer is pre-reinforced; 2,a tunnel entrance is constructed; 3, excavation and initial support construction is conducted on the reinforced tunnel section; 4, a reinforced tunnel section base is reinforced; 5, the reinforced tunnel section is subjected to secondary lining construction; 6, excavation and initial support construction is conducted on a rear side tunnel section; and 7, the rear side tunnel section is subjectedto secondary lining construction. The method is reasonable in design, simple and convenient to construct and good in use effect, cement-soil mixed piles are adopted for pre-reinforcement before excavation, a construction process of the tunnel entrance section through the landslide mass is guaranteed to be safe and reliable, meanwhile, the tunnel entrance section is excavated by adopting a three-step excavation method, the reinforced tunnel section base is reinforced, an excavation process of the tunnel entrance section through the landslide mass can be guaranteed to be safe and reliable, in addition, the influence on the stability of a soil layer on the circumferential side of the tunnel entrance is small, and the stability of the excavated and formed tunnel entrance can be effectively improved.

The invention discloses a substation indoor cable trench cover plate hoisting device which comprises a transporting cart (1) and a transporting cart rear rack (2), wherein the transporting cart rear rack (2) is connected with the transporting car (1). The hoisting device is characterized by further comprising a rotation device (3), a winch (4), a hoisting arm (5), an oil cylinder (6), a clamping board device (7), a hydraulic pressure station (9) and a steel wire rope (101). According to the hoisting device, the rotation device, the winch, the hoisting arm, the oil cylinder and the clamping board device are used in a combined manner, so that automatic hoisting of a cable trench cover plate is achieved and human cost and work intensity are reduced; the transporting cart and the transporting car rear rack can accommodate trench cover plates with various sizes through the coordination of dovetail grooves and dovetail keys, the range of application is wider, and meanwhile the risk that the trench cover plate falls down is reduced; the clamping board device can clamp and hold the trench cover plates with various sizes, and the application range and stability are improved; and the use of a knocking device can achieve automatic knocking on the trench cover plates, and the efficiency of the entire hoisting device is improved.

The invention discloses a quarry side slope rolling stone deceleration protection facility. The quarry side slope rolling stone deceleration protection facility comprises two rows of ejection cavitieswhich are distributed on a side slope and have upward openings, wherein a trigger deceleration device is arranged in the ejection cavities, the trigger deceleration device comprises an ejection blockwhich can slide up and down and is arranged in the ejection cavities, a first spring is fixedly connected between the lower end of the ejection block and the inner wall of the ejection cavities, a reset device is arranged below the trigger deceleration device, and a rolling stone recovery device is arranged on the right side of the trigger deceleration device and the reset device. The quarry sideslope rolling stone deceleration protection facility can effectively reduce the sliding risk of side slope rolling stones in places such as quarries, small rolling stones which are easy to ignore cannot slide down to cause harm while the quarry side slope rolling stone deceleration protection facility is served as a dustproof effect in daily life, the rolling stone speed can be effectively reduced when large rolling stones slide down, sufficient evacuation time is provided for personnel in a dangerous area below the side slope, and a recovery hanging net convenient for rolling stone recoveryis arranged.

The invention discloses an ultrathin packaging component including a plastic packaging body, a chip, silver coating layers, NiPdAu coating layers, a plurality of copper connecting layers and bonding lines. The chip, the silver coating layers, the NiPdAu coating layers, the copper connecting layers and the bonding lines are all packaged in the plastic packaging body and form a power supply and signal channel of a circuit. One of the silver coating layers and one of the NiPdAu coating layer are arranged on the upper surface and the lower surface of each copper connecting layer. The silver coating layers are independent from each other. The chip is arranged on a part of the silver coating layers. The part of silver coating layer without the chip are connected with the chip by the bonding lines. As electroplating and film pasting can be avoided, the manufacturing cost can be largely reduced, and the product is more competitive. The invention also discloses a manufacturing technique of the ultrathin packaging component. The product manufacturing process can be conducted with a common framework, and a framework carrier does not need to be processed too much, so that the design period is shortened, the cost is reduced, the interconnection between the chip and the carrier is better achieved, and I/O is denser.

The invention provides a loose rocky slope spray-seeding repairing method. The loose rocky slope spray-seeding repairing method comprises the following steps of leveling a slope surface, and removing large waste rocks; spraying cement paste; conducting mechanic compacting and spraying a bottom sealing layer; laying a protective net, and fixing the protective net on the slope surface through anchor rods; transversely arranging plant growing bags in a staggered manner; spraying a bottom substrate; laying a coconut shred blanket on the bottom substrate; spraying a middle-layer substrate; and spraying a seed layer substrate. By means of the method, rapid ecological restoration of a loose waste rock slope can be achieved, the phenomena of substrate sliding and landslide are avoided, the restored slope is high in rain wash resistance, weak in slope surface water seepage capacity and high in stability and safety, and the lasting safety and regreening effect of the slope surface can be achieved.

The invention discloses a shell processing method, a shell and electronic equipment, and belongs to the field of electronic equipment. The shell processing method comprises the following steps: manufacturing a first texture structure on a first surface of a light-transmitting base material, wherein the first texture structure is a concave-convex structure; manufacturing a second texture structure on the second surface of the light-transmitting base material; and manufacturing a reflecting film on the second texture structure, wherein the first surface and the second surface are oppositely arranged, and the shape of the first texture structure is not completely the same as that of the second texture structure.

The invention provides an integrated circuit package structure and a manufacturing technology thereof, and the structure is film-pasting-free and electroplating-free and is based on the bonding wire connection. The structure comprises a silver plating layer which is mutually independent silver plating layer sections and chips which are arranged on some silver plating layer sections, the silver plating layer sections are connected through bonding wires, plastic package bodies are arranged on the peripheries of the chips, the silver plating layer, a nickel-palladium-gold plating layer and the bonding wires, and a power supply and a signal channel are formed by the chips, the silver plating layer, the nickel-palladium-gold plating layer and the bonding wires. The invention also provides the manufacturing technology of the above integrated circuit packaging, the packaging part provided by the invention is film-pasting-free and electroplating-free, so that the production cost can be greatly reduced, the product is more competitive than the prior art. The manufacturing technology is suitable for applying in integrated circuit packaging.

The invention relates to a device for shielding teeth to be treated in order to prevent an inflow of liquid, such as saliva or blood for example, and to a use of the device according to the invention. The invention relates to a partial dental dam (1) for protecting teeth to be treated, comprising a tensioning cloth (2) made of an elastic material and two actuation elements (3) arranged on opposing ends of the tensioning cloth (2). The tensioning cloth (2) is designed to be introduced into at least one intermediate tooth space (11) from the occlusal side in a first tensioned state, which can be achieved by pulling apart the actuation elements (3) in a tensioning direction (90), and to sealingly rest against the interdental gingiva and the approximal surfaces of the teeth (10) forming the at least one intermediate tooth space (11) in a second state after being introduced into the at least one intermediate tooth space (11). Each actuation element (3) rests against at least one tooth (10) and/or against the surrounding gingiva in the second state. The invention further relates to the use of the partial dental dam according to the invention. The tensioning cloth (2) is elongated by pulling the actuation elements (3) in the tensioning direction (90); the tensioning cloth (2) is introduced into at least one intermediate tooth space (11) from the occlusal side in the elongated state; and the tensioning cloth (2) is brought to rest against the interdental gingiva and the approximal surfaces of the teeth (10) forming the at least one intermediate tooth space (11) by releasing the tensioning force. Each of the actuation elements (3) rests against at least one tooth (10) and/or against the surrounding gingiva.

The invention discloses a movable chassis and a robot. The movable chassis comprises a shell and at least two driving mechanisms; each driving mechanism comprises a swing rod, a damper and a hub motor; the upper end of the damper is hinged to the shell, the lower end of the damper is hinged to the first end of the swing rod, the first end of the swing rod is connected with a fixing seat of the hubmotor, and the second end of the swing rod is hinged to the shell; and the second end of the swing rod, the upper end of the damper and the fixing seat of the hub motor are arranged in a triangular shape. According to the chassis and the robot, the technical problem that the bidirectional advancing performance of a movable chassis is poor in the related art is solved.

The invention relates to a printer roller (3), which comprises a fixed axis (13) and a roller jacket (9) borne on the fixing axis (13) through a first pivot bearing (10), a second pivot bearing (11) and a third pivot bearing (12). The third pivot bearing (12) is not aligned with the first pivot bearing (10) and the second pivot bearing (11), and disposed between the first and second pivot bearing; the roller jacket (9) is connected with a first gear (8) without relative rotation; and the gear and the roller jacket (9) rotates around the fixed axis (13) together.