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49results about How to "Improved gripping ability" patented technology

Preparation method of inorganic anti-corrosive paint for steel bar

The invention belongs to the technical field of building materials and particularly relates to an inorganic anti-corrosive paint for a steel bar. The inorganic anti-corrosive paint is prepared from a hydraulic cementing material, a modifying agent, a plasticizer, superfine nanometer powder, an active composite material, aggregates and mixing water at a certain ratio. The inorganic anti-corrosive paint prepared by the method disclosed by the invention is quite good in workability; the surface of the steel bar has a quite good adhesive force and is unlikely to sag after being mechanically sprayed with the inorganic anti-corrosive paint; the paint can be rapidly coagulated; the paint formed after solidification is compact in structure, 30 to 70 MPa in compressive strength in one day, 60-150 MPa in compressive strength in 28 days and 100-1000 coulombs in electric flux, so the paint is quite good in chloride penetration resistance. Besides, the paint and concrete have quite good compatibility and quite high bonding strength which is 1.0-2.0 MPa in 28 days. By adopting mechanical operation, the inorganic anti-corrosive paint for the steel bar, disclosed by the invention, can be used for rapidly performing a large-area anti-corrosive treatment on the steel bar at a construction site and is especially applicable to the anti-corrosive treatment of the steel bar in marine concrete. The preparation method disclosed by the invention is simple, convenient and wide in application.
Owner:汪峻峰

Wind-vibration-resistant climbing and attaching robot imitating Anleski

The invention belongs to the field of intelligent robots, and relates to a wind-vibration-resistant climbing and attaching robot imitating Anleski, which is composed of a body function module, a sole function module, a leg function module, a control and drive function module and a power supply device. The body function module comprises a head, a spine for completing a cross gait advancing function through bending, a flexible abdomen film made of magnetic sensitive rubber, a tail for converting wind energy into advancing power through bending deformation, and a rib frame; wherein the sole function module is composed of toes and toe connecting pieces, and the toes comprise claw thorns and multiple sections of phalanges; and the leg function module comprises a pneumatic function part and a movement function part. According to the robot, by referring to the structural change characteristics of Anlerei in strong wind, the flexible belly part and the flexible tail part capable of adjusting aerodynamic performance and the adhesion soles capable of improving the adhesion capacity are designed, so that the problem of stable climbing in the strong wind environment can be solved, and the robot can adapt to a wall surface with a certain curvature and can adapt to wider and more complex scenes.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Dental implant having different surface treatment areas

A dental implant having different surface treatment areas is formed by a coarse screw tooth zone, a dense screw tooth zone, a neck ring portion, a top portion and a conjugative pore, the coarse screw tooth zone is composed of screw teeth having a wide pitch, the surface of the coarse screw tooth zone is sandblasted, and the sandblasted surface is etched by an acid to form holes having different sizes; the dense screw tooth zone is composed of screw teeth having a narrow pitch, and the surface of the dense screw tooth zone is etched by the acid to make a plurality of small holes distributed in the acid-etched surface; the neck ring portion is positioned at the upper edge of the dense screw tooth zone, and the surface of the neck ring portion is etched by the acid to make a plurality of small holes distributed in the acid-etched surface; the top portion is positioned at the top edge of the dental implant, and the surface of the top portion is etched by the acid to make a plurality of small holes distributed in the acid-etched surface; and the conjugative pore is positioned at the inner edge of the top portion, and is a blind hole provided with a positioning surface and a female screw. The above structure is helpful for the easy screw-in, the reduction of osteocyte necrosis and the improvement of the gripping capability of osteocytes in order to realize osseointegration.
Owner:QIN CHUANG PRECISION TECH

Tong device with posture correction function

The invention discloses a tong device with a posture correction function and used for a small operation space. A step motor 12 is used for power drive of the tong device, power is transmitted to a transmission gear 23 through a planetary reducer 10, the transmission gear 23 is meshed with a half-gear 9 to drive a left jaw 3 to rotate, the left jaw 3 and a right jaw 16 rotate around a left rotary shaft 5 and a right rotary shaft 15 respectively, a left half-gear 7 and a right half-gear 26 are meshed and rotate in opposite directions at the same speed, and accordingly loosening and grasping of the two jaws of the tong device are achieved. The tail ends of the two jaws are provided with clamping teeth 2 with guide structures. When the tong device is used for grasping an object, the clamping teeth 2 are inserted into square holes of an object butt joint unit, and meanwhile posture errors of the grasped object can be corrected; after the object is grasped, the grasped object is attached to a butt joint plate 29, and positioning and fastened grasping of the grasped object are achieved. The tone device has the function of correcting the posture of the grasped object, can improve grasping efficiency and reliability, and is a mechanical device which is compact in structure, strong in loading capacity and suitable for the operation space with strict requirements.
Owner:BEIHANG UNIV

A robotic dexterous hand with parallel adaptive grasping

The invention discloses a parallel self-adaptive grasping robot dexterous hand. The parallel self-adaptive grasping robot dexterous hand comprises a base and fingers. The fingers comprise the first finger, the second finger and the third finger. Each finger comprises a far-end finger rod and a near-end finger rod. The first finger is fixedly connected to the base. The second finger and the third finger can rotate around the central axis perpendicular to the base. In the dexterous hand grasping process, when the near-end finger rods do not make contact with an object, the far-end finger rods linearly and horizontally move to parallelly grasp the object, and the object also can be grasped in a self-adaptive envelope mode according to the different sizes and shapes of the object after the near-end finger rods make contact with the object. Meanwhile, the positions of the rotatable fingers can be adjusted in a large range, so that a plurality of grasping structure states are produced, and the capacity to grasp different shapes of objects is improved. The parallel self-adaptive grasping robot dexterous hand is ingenious in structural design, small in size, few in driver, capable of automatically adapting to different sizes and shapes of objects, high in grasping capacity, large in range, stable and reliable.
Owner:SHENZHEN DH ROBOTICS TECH CO LTD

Material grabbing mechanism for portable bag closer

The invention relates to a material grabbing mechanism for a portable bag closer, which comprises a material grabbing upper pressure rack and a material grabbing lower retainer, wherein a machine needle passes through the material grabbing upper pressure rack and the material grabbing lower retainer from top to bottom, the upper surface of the material grabbing lower retainer is provided with sawteeth, the material grabbing upper pressure rack and the material grabbing lower retainer can be kept close to each other to feed materials cooperatively, the upper surface of the material grabbing lower retainer is also provided with skid-proof needle points of which the tops are higher than the sawteeth, the lower surface of the material grabbing upper pressure rack is provided with a needle hiding groove, the height of the skid-proof needle points is not greater than the depth of the needle hiding groove, the length of the needle hiding groove is not less than the sum of the diameter of theskid-proof needle points and the forward and backward moving strokes of the skid-proof needle points, and the skid-proof needle points extend into the needle hiding groove when the material grabbing lower retainer is kept close to the material grabbing upper pressure rack. The structure can avoid the hard abrasion generated between the skid-proof needle points and a material feeding upper pressure rack so as to effectively keep the sharpness of the skid-proof needle points and bring the beneficial effect that the material grabbing mechanism grabs materials firmly and feeds the materials reliably.
Owner:余晋

Plugging structure and plugging method for small-section deep hole in civil air defense overhead wall

The invention relates to a plugging structure and plugging method for a small-section deep hole in a civil air defense overhead wall, and belongs to the field of civil air defense engineering. A resistance plate and a non-resistance plate are arranged in reaming areas at the two ends of a preformed hole in a manner of being attached to a wall body, and the resistance plate and the non-resistance plate are connected in a pulling manner through a harness cord screw rod. After the whole plugging process is finished, steel plates on the two sides of the hole and bolts are reserved in the structure and cannot be taken out, the thread concave-convex characteristic of the surface of a harness cord bolt is effectively combined with a grouting material to generate larger friction force, the holding and wrapping effect is improved, and the structure strength and plugging and sealing reliability are guaranteed. The shaving and chiseling workload on the original structure concrete in the structure treatment stage is small, and the damage influence on the original concrete structure is small. Grouting plugging operation is simple and convenient, and plugging work of corresponding requirements can be completed at a time. After the plugging measures are completed, the surface treatment traces of the structure are not obvious, and later decoration work is facilitated.
Owner:BEIJING NO 3 CONSTR ENG +1

Water passing pipe for precast concrete and preparation method thereof

The invention belongs to the technical field of concrete, and particularly relates to a water passing pipe for precast concrete and a preparation method thereof. The water passing pipe is used for solving the problem of temperature cracking of large-volume concrete. The water passing pipe comprises a horizontal pipeline part and vertical pipeline parts which are connected by tee joints, wherein the vertical pipeline parts are arranged on the horizontal pipeline part at equal intervals; the horizontal pipeline part and the vertical pipeline parts comprise hollow plastic corrugated pipes or steel pipes and threaded reinforced concrete pipes coating the exterior; reinforcing steel bars and reinforcing meshes at connectors of the horizontal pipeline part and the vertical pipeline parts are connected by adopting spot welding; and the horizontal pipeline part and the vertical pipeline parts are connected into an integrated structure through cast-in-place precast concrete. The horizontal pipeline part and the vertical pipeline parts respectively achieve the temperature control in the horizontal gradient direction and vertical gradient direction of mass concrete; the "T"-shaped structure formed by the horizontal pipeline part and the vertical pipeline parts can effectively replace the complex structure of laying horizontal water passing pipes in the traditional layering; and the vertical pipeline parts can be used as water passing pipe filling channels, so that the filling efficiency and effect of the water passing pipe can be improved, and internal defects and cracks are reduced.
Owner:SHANGHAI CONSTRUCTION GROUP

A kind of transformer gas relay butterfly cover fixing device

The present invention provides a butterfly cover fixing device for transformer gas relay, which comprises a wire wheel central shaft, a wire wheel fixed on the wire wheel central shaft, a knob fixedly connected with the upper end of the wire wheel central shaft, a spring mounting base connected with the wire wheel central shaft through a bearing, two conical springs, two draw wires, two fixing pieces, a screw rod fixedly connected with the lower end of the wire wheel central shaft, a cylinder connected and cooperating with the screw thread of the screw rod and a push rod at the lower end of the screw rod. The two fixing pieces, the two conical springs and the wire wheel are on the same horizontal level. One end of each conical spring is fixedly connected to the spring mounting base while the other end is fixedly connected with the fixing pieces. One end of each draw line is fixedly arranged on the wire wheel while the other end is connected with the other end of each conical spring respectively. The cylinder and the spring mounting base are fixedly connected. The cylinder wall of the cylinder is provided with a hole that allows the push rod to extend beyond. According to the invention, the structure is stable. The device does not come off easily and is convenient to assemble and disassemble.
Owner:PENGLAI POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO

PHC tubular pile planting construction method

The invention relates to a PHC tubular pile planting construction method. The PHC tubular pile planting construction method comprises the following steps that a pile casing is provided, and the pile casing is screwed into a soil body according to the preset position and the preset elevation of a PHC tubular pile; the soil body in the pile casing is dug out; a protective material is poured into the pile casing to enable the height of the poured protective material to be lower than that of the pile casing; the PHC tubular pile is provided, and the PHC tubular pile is hoisted into the pile casing to enable the PHC tubular pile to reach a preset elevation of the PHC tubular pile; and concrete is poured into the PHC tubular pile to the top of the PHC tubular pile, and therefore pile planting of the PHC tubular pile is completed. As the PHC tubular pile is continuously immersed into the protective material, the holding and wrapping effect of the protective material on the PHC tubular pile is also continuously enhanced, the PHC tubular pile can be prevented from deviating in the horizontal direction under the holding and wrapping effect of the protective material, the PHC tubular pile can only gradually sink in the protective material in the vertical direction under the self-weight effect of the PHC tubular pile, and therefore the pile planting effect of the PHC tubular pile can be guaranteed.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD
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