102results about How to "Guaranteed grip" patented technology

The invention discloses a secondary high-pressure grouting expansion bit anchor rod and a construction method of the secondary high-pressure grouting expansion bit anchor rod and belongs to a novel anchoring structure. The secondary high-pressure grouting expansion bit anchor rod comprises an anchor rod body, grouting bags and grouting pipes. The secondary high-pressure grouting expansion bit anchor rod is characterized in that a centering grouting bag is arranged on the front segment of the anchor rod body, a secondary grouting bag is arranged on the rear segment of the anchor rod body, a primary grouting pipe and a secondary grouting pipe are arranged on the anchor rod body, an outlet of the primary grouting pipe is located at the foremost end of the portion, located in the centering grouting bag, of the anchor rod body, and an outlet of the secondary grouting pipe is located at the front end in the secondary grouting bag. The construction method of the secondary high-pressure grouting expansion bit anchor rod comprises the steps of pore forming, rod body placement, grouting of the centering grouting bag, secondary grouting and tensioning for locking. The secondary high-pressure grouting expansion bit anchor rod and the construction method of the secondary high-pressure grouting expansion bit anchor rod have the advantages that after primary grouting and solidification, secondary high pressure is adopted for grouting the secondary grouting bag, and cemented soil on the rear segment of an expansion bit is squeezed closely or cracked by means of high-pressure grouting, so that an anchoring body applies precompression to a soil body, the frictional resistance between the anchoring body and the soil body is enhanced, and consequently the pulling resistance of the anchor rod is increased.

The invention relates to a tire tread rubber compound with low rolling resistance and a tire made from the tire tread rubber compound. The tire tread rubber compound comprises the following raw materials in parts by weight: 50-70 parts of natural rubber STR20, 0-30 parts of solution polymerized styrene-butadiene rubber SSBR4525, 0-20 parts of neodymium butadiene rubber BunaNd22EZ, 0-10 parts of guayule, 20-35 parts of carbon black ECORAX1670, 20-35 parts of white carbon black ULTRASIL 5000GR, 1.5-3.0 parts of a silane coupling agent Si69 and 0.2-0.4 part of a silane coupling agent KH580. A preparation method comprises the following steps: preparing guayule, mixing by adopting an internal mixer and mixing by adopting an open mill, thereby acquiring the tire tread rubber compound with low rolling resistance. Through the tread pattern design for circumferential pattern, transverse pattern, siping pattern, and the like, the tire with low rolling resistance is prepared. According to the tire tread rubber compound with low rolling resistance and the tire made from the tire tread rubber compound provided by the invention, the tread formula is optimized, the mixing technique is improved, the tread pattern is improved and the tread formula, the mixing technique and the tread pattern are organically combined, so that the performances, such as road holding, abrasive resistance and wet sliding resistance of the tread, are guaranteed and the rolling resistance of the tire is reduced.

The invention relates to a full-thread fiber resin rod body soil nailing wall and a construction method thereof; a soil nail rod body of a soil nailing wall is a full-thread fiber resin rod body, auxiliary reinforcement ribs are arranged at positions situated on the upper part of an interior segment of a concentrate surface layer of the soil nail rod body, and continuous cross pressing ribs are arranged on the lower part thereof; the fastening nut is a resin nut; the lining plate is a resin lining plate injected by a resin material and is fastened on the outer surface of the concentrate surface layer; and ring locators are sleeved on the parts stretched into the side slope soil of the full-thread fiber resin rod body at intervals. Compared with the present soil nailing wall, the invention has the advantages of simple and convenient construction, energy saving, consumption reduction and larger application range of resin rod body; and the nut and lining plate situated on the end part of the rod body are situated at the outside of the concentrate surface layer, so the stress is more reasonable. Meanwhile, an expanding head is arranged at a position situated in the side slope of the rod body according to the actual engineering to form a reinforced expanding head soil nail, so that the plasticity is strong. The invention can be extensively applied in the construction of side slope soil nailing wall technique.

The invention discloses a motor vehicle wheel. The wheel includes: the rim 1 is a combination of multiple sets of rubber wheel surface blocks that rotate freely around the hinge point and connects end to end to form a flexible hinge chain ring. Each two sets of rubber wheel surface block assemblies are hinged and fixed on the outer end of the piston rod and can Rotation; the spokes are composed of multiple sets of telescopic cylinders 2 with built-in tension springs uniformly distributed along the circumference; the hub 3 is composed of connecting power source and supporting interface, compressed air connection port and equipped with motorized and neutral gear switching devices. Control the telescopic thrust of the cylinder according to the road conditions, so that the flexible rim can change the shape of the outer rim where the force is applied by amplitude modulation, and automatically adapt to various terrains such as continuous steps, pits, bumps, and slippery roads, so as to generate sufficient grip friction and improve obstacle surmounting And the ability to pass through various road surfaces. The telescopic cylinder buffers and absorbs the bumps and vibrations of the road surface to ensure smooth and comfortable operation at the hub.

The invention relates to an oblique type hole tray seedling transplanting paw which comprises a machine frame, a sliding platform, steel needle fixing plates, a sleeve fixing plate, sleeves, steel needles, a reinforcing plate, buffering sleeves, hinge pins and an air cylinder. The air cylinder is fixed on the upper portion of the machine frame, the middle of the sliding platform is fixed on the end portion of a pushing rod of the air cylinder, and the two hinge pins are fixed on the upper portions of the two steel needle fixing plates respectively and are installed in long holes in the two sides of the sliding platform. The middle of the sleeve fixing plate is fixed at the bottom of the machine frame, the four sleeves are fixed at the four corners of the sleeve fixing plate respectively, the lower portions of the four steel needles are installed in the four sleeves respectively, and the upper portions of the four steel needles are fixed on the lower portions of the steel needle fixing plates on the two sides respectively. Four long holes are formed in the four corners of the reinforcing plate respectively, the reinforcing plate is located on the lower portion of the sleeve fixing plate, the sleeves penetrate through the long holes in the four corners of the reinforcing plate, and the four buffering sleeves are arranged on the four steel needles 6 in a sleeved mode to be installed on the upper portion of the sleeve fixing plate. The form that the steel needles insert and take hole tray seedlings by a certain angle is adopted in the oblique type hole tray seedling transplanting paw, practicability is high, structure is simple and stable, and the degree of automation is high.

The invention relates to a saloon car tyre surface and specially, relates to patterns of the saloon car tyre surface. The saloon car tyre surface comprises a centre pattern block, side pattern blocks and shoulder pattern blocks. The side pattern blocks and the shoulder pattern blocks are orderly and regularly arranged at left and right sides of the centre pattern block from inside to outside. The saloon car tyre surface is divided into left and right symmetrical parts by the centre pattern block. The centre pattern block is a vertical one-piece pattern block and is located in the center of the saloon car tyre surface. The centre pattern block is separated from the side pattern blocks through main vertical circle pattern channels located between the centre pattern block and the side pattern blocks. The side pattern blocks are separated from the shoulder pattern blocks through auxiliary vertical circle pattern channels located between the side pattern blocks and the shoulder pattern blocks. Adjacent two of the side pattern blocks are separated through an inclined side pattern channel and two ends of the inclined side pattern channel are respectively communicated with the main vertical circle pattern channel and the auxiliary vertical circle pattern channel. Adjacent two of the shoulder pattern blocks are separated through a shoulder pattern channel and the shoulder pattern channel is communicated with the auxiliary vertical circle pattern channel. The patterns of the saloon car tyre surface are mixed patterns and thus the saloon car tyre surface can produce an enough braking force and has good control performances and a beautiful appearance.

The invention relates to a stem-gripping type potted seedling transplanting claw, belonging to the field of agricultural automatic seedling transplanting equipment. The stem-gripping type potted seedling transplanting claw disclosed by the invention is composed of a driving cylinder, a push frame, a left arm, a left claw, a right claw, a right arm and a fixed frame; the fixed frame is in an L-shaped structure; the driving cylinder is installed on the fixed frame; the push frame is installed at the tail end of a push rod of the driving cylinder; two long holes are formed in the push frame; both the upper and lower sections of the left arm and the right arm are provided with a folded corner respectively; the upper ends of the left arm and the right arm are symmetrically hinged onto the fixed frame through a pin shaft respectively; the upper parts of the folded corners of the left arm and the right arm respectively penetrate through the two long holes in the push frame; the left claw and the right claw are fixedly connected with the tail ends of the left arm and the right arm respectively. The seedling injury rate is reduced while the stronger gripping capability is ensured in a manner of griping stems; the whole structure is only singly driven; the stem-gripping type potted seedling transplanting claw disclosed by the invention is simple in structure, high in automation degree and strong in practicability and reliability.

The embodiment of the invention discloses a self-expanding medicament stent and a preparation method thereof, and the self-expanding medicament stent is characterized by comprising a self-expanding nickel and titanium alloy super-elastic stent body; a medicament coating is coated on the self-expanding nickel and titanium alloy super-elastic stent body; the medicament coating is formed by mixing a medicament capable of inhibiting restenosis with a polymer according to the weight ratio; the polymer has biological degradable property and comprises at least one of PLA (polylactic acid), PGA (polyglycolic acid), PLGA (poly(lactic-co-glycolic acid)) and other artificially synthesized polymer materials or chitosan, algae salt type, bioprotein and other natural polymers. The self-expanding medicament stent disclosed by the embodiment of the invention takes a metal stent as the basis, and the micro-roughening treatment is performed on the surface, thereby increasing the binding force between the surface and the coating and simultaneously promoting the endothelialization of blood vessels.

The invention discloses a device and method suitable for drilled hole form drawing and intra-hole obstacle taking. Through a dip angle inductor and methods such as infinitesimal iterated integral, the hole form three-dimensional dip angles of all positions of a vertical or inclined hole and three-dimensional coordinates of a hole form center point can be continuously obtained, and a hole form curve is accurately drawn; and through a visualization module, combined hydraulic cylinders and different types of grabbing sections, the obstacle characteristics such as the number, the size and the shape can be confirmed through a method for analyzing the stress of different obstacles and adjusting the oil pressure adjustment, and the various types of obstacles such as a large number of sediment obstacles, a small number of obstacles or a single specific obstacle can be taken out. The device comprises an extra-hole visualization operation module and an intra-hole obstacle taking module. The extra-hole visualization operation module comprises an operation table, a lifting control region, an advancing control region, a hydraulic control region, a camera display screen, a linear display screen and the like. The intra-hole obstacle taking module comprises a base, a dip angle inductor, a counter-force frame, idler wheels with motors, light emitting cameras, a drive rod, connecting rods, a drive disc, the grabbing sections and the like.

The invention relates to the technical field of rubber tire manufacture, in particular to a patterned tire with high drainage capacity. A first longitudinal main groove and a second longitudinal maingroove are sequentially formed in the circumference of a casing of the patterned tire from inside to outside and divides the casing into an inner side pattern block combination zone, a middle patternblock combination zone and an outer side pattern block combination zone in sequence from inside to outside, an inner longitudinal fine groove, an inner lateral small groove, an inner steel plate finegroove and an inner lateral main groove are formed in the inner side pattern block combination zone, a middle lateral main groove and a middle steel plate fine groove are formed in the middle patternblock combination zone, and an outer lateral main groove and an outer steel plate fine groove are formed in outer side pattern block combination zone. The pattern tire with high drainage capacity canquickly drain water, so as to prevent the phenomenon of 'slippage' of a vehicle, increase the adhesion of the tire to the ground, and greatly improve the wetland handling performance of the tire.

The invention discloses a wheel humanoid robot with high balance capacity. The wheel humanoid robot comprises a head system, a neck system, a chest system, a waist system and a wheel chassis from topto bottom; multi-degree-of-freedom mechanical arm grabbing systems are symmetrically arranged on the chest system; a high balance device is arranged on the wheel chassis; and the high balance device comprises multiple adjustable elastic support legs radially arranged on the side surface of the wheel chassis in a symmetric extension mode. The structure of the humanoid robot is optimized, and the balance capacity of the robot is improved, so that the overall balance of the robot in the bowing operation process is always maintained, the robot operation space is enlarged, the robot operation capacity is improved, and such functions as robot stable movement and grabbing are achieved.

The present application discloses a mobile chassis and a robot. The mobile chassis comprises a shell and at least two driving units; each driving unit comprises a swing rod, a damper, a driving mechanism and a driving wheel; the upper ends of the dampers are hinged with the shell, the lower ends of the dampers are hinged at the first ends of the swing rods, the driving mechanisms are fixed at thefirst ends of the swing rods, the output ends of the driving mechanisms are connected with wheel shafts included in the driving wheels, and the second ends of the swing rods are hinged on the shell; and the first ends and the second ends of the swing rods and the upper ends of the dampers are arranged in a triangular mode. The technical problem is solved that the both-way traveling performances ofthe mobile chassis is poor in the related art.

Tread profile of a pneumatic vehicle tire comprising at least one profile block sequence (1), which is delimited in the axial direction A of the tire by two circumferential grooves (2, 3) and is configured in the circumferential direction U of the tire from profile block elements (4) spaced apart from one another by transverse grooves (5), wherein the profile block elements (4) are delimited in the radial direction R by a radially outer surface (7) forming a ground contacting surface, wherein one profile element (4) is arranged between two transverse grooves (5) adjacent in the circumferential direction U, wherein a fine incision (6) is configured running transversely in the radial outer surface (7) of the profile block element (4), characterized in that both transverse grooves (5) have a zig-zag shape or an undulating shape from circumferential groove (2) to circumferential groove (3), at least in one section (CQ) of their extension, along their primary extension direction, wherein the amplitude AQ of the zig-zag or undulating shape has its maximum in the groove bottom (8) and, starting from the groove bottom (8) constantly decreases along the radial extension R towards the outside, and that at least one transversely running fine incision (6) of the profile block element (4) has a zig-zag shape or an undulating shape from circumferential groove (2) to circumferential groove (3) in at least one section (CF) of its extension along its primary extension direction, wherein the amplitude AF of the zig-zag or undulating shape has its maximum in the radial outer surface (7) and, starting from the radially outer surface (7), constantly decreases along the radial extension R towards the inside.

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 an outdoor mobile chassis for a mobile robot, and belongs to the technical field of mobile robots. The chassis comprises a chassis body, four moving wheels, four gear motors,a front suspension mechanism and a rear suspension mechanism; the front suspension mechanism and the rear suspension mechanism are the same suspension mechanism; each gear motor drives one moving wheel; each suspension mechanism comprises a pair of damping adjusting suspension mechanisms of the same structure, a middle support and a connecting frame; each damping adjusting suspension mechanism comprises a shock absorber, a swing rod mechanism and an adjusting rod mechanism; and two independent suspension mechanisms are formed by the pair of damping adjusting suspension mechanisms. During moving operation, the pair of shock absorbers is used for adjusting fluid damping according to different road surface bumping degrees so as to adapt to different road surface environments; and the independent suspension mechanism corresponding to each moving wheel buffers the impact of the road surface on the moving wheels, so that the shock resistance of the outdoor moving chassis is improved. The outdoor mobile chassis is suitable for carrying a manipulator to implement mechanical operation and also suitable for carrying small cargoes.

The invention provides a hole bottom fixing device and a method utilizing hole bottom fixing device to put a sleeve in a coal seam for extraction and relates to the technical field of mining. The hole bottom fixing device comprises a column body. A plurality of strip-shaped grooves are formed uniformly in the circumferential surface of the column. The hole bottom fixing device further comprises fixed wings with the number being equal to the number of the strip-shaped grooves. The fixed wings are mounted in the strip-shaped grooves, one ends of the fixed wings are rotatably connected at the bottoms of the strip-shaped grooves, and the other ends of the fixed wings can be collected in the strip-shaped grooves. The hole bottom fixing device is reasonable in structural design and can be applied to fixing the sleeve after putting of the sleeve in the soft coal seam, and when the drill is withdrawn, the drill does not take out the sleeve.

The invention discloses a rice transplanter with a dragging type seed supplementing machine. The rice transplanter comprises a rack, a running device, a seedling box, a seedling delivering mechanism and seedling sorting mechanisms, wherein a ship plate and an inclined plate are arranged on the rack; the seedling delivering mechanism is arranged in the seedling box; a plurality of seedling doors and seedling sorting mechanisms are arranged on the ship plate; the rack is connected with the dragging type seed supplementing machine; the dragging type seed supplementing machine comprises a top plate, a dragging rod, a seed supplementing mechanism and an adjustable dragging wheel; a seed supplementing cavity is formed in the seed supplementing mechanism; a plurality of fifth conveying belts as well as seed supplementing seedling doors and seed supplementing seedling pre-assembling boxes which are positioned at two ends of the fifth conveying belts and are in one-to-one correspondence to thefifth conveying belts; second touch switches are arranged on the side surfaces of the seed supplementing seedling doors; seed supplementing cylinders are arranged above all seed supplementing seedlingdoors; and a pair of photoelectric detection devices are arranged at the front side below each seed supplementing seedling door. The rice transplanter can be used for supplementing seeds for places lacking seedlings, thereby reducing the labor cost required for artificially supplementing seeds.

The invention discloses a wedge-shaped tension clamp, which comprises a positioning sheath, a sheath, an upper clamping plate, a lower clamping plate, a connecting plate and a separation preventing device; the positioning sheath and the sheath are connected to form a wedge-shaped sheath with a wedge-shaped hole, and the rectangular area of the front end cross section of the wedge-shaped hole is larger than the rectangular area of the rear end cross section; the upper and lower clamping plates are arranged in the wedge-shaped hole in a penetrating manner, corresponding surfaces of the upper andlower clamping plates are parallel, and the upper surface of the upper clamping plate and the lower surface of the lower clamping plate are adhered to two wedge-shaped planes of the wedge-shaped holerespectively; arc-shaped grooves are correspondingly formed in the upper and lower clamping plates on the corresponding surfaces, and the corresponding arc-shaped grooves form a lead wire groove clamping a lead wire; the upper and lower clamping plates are fixedly connected to form a clamping plate assembly on the outer side of the wedge-shaped hole; and the positioning sheath is provided with aseparation preventing device for preventing the positioning sheath from being separated from the clamping plate assembly, and a separation preventing groove matched with the separation preventing device is formed in each of the upper and lower clamping plates. The wedge-shaped tension clamp is simple in structure, can be installed by using a common tool, and can prevent the clamping plate assemblyfrom sliding out of the wedge-shaped hole through the cooperation of the separation preventing device and the separation preventing grooves.

The invention provides a slip preventive suspension clamp which is connected reliably after being crimped and can avoid corona and device deformation. The suspension clamp comprises a cover plate, a clamp body with a U-shaped cross section and a U-shaped hoop, the cover plate is connected into a U-shaped groove of the clamp body via a pair of U-shaped bolts, an U-shaped opening of the hoop is upwardly clamped in the middle of the clamp body, the inner bottom side of the clamp body includes a wire through duct which is composed of three arc lines, namely a middle segment and symmetric head and tail segments, the curvature radius of the middle segment is greater than those of the symmetric head and tail segments, and the surface of the middle segment is provided with sawtooth projections. The middle large arc segment in the bottom of the boat-shaped clamp body is provided with transverse sawteeth, so that the grip of the suspension clamp for leads is ensured; and the bottom of the clamp body is provided with the groove, the hoop is embedded into the groove and is not protruded out of the surface, so that a corona phenomenon is avoided.