51results about How to "Play a stretching effect" patented technology

The invention discloses an impervious frost-resisting C30 concrete and a preparation method thereof. The concrete comprises cement, fly ashes, an admixture, sands, crushed stones, water, a swelling agent and a frost-resisting agent; the swelling agent comprises gypsum, calcium oxide, calcium stearate, calcium sulphoaluminate, rosin, ethanol, polyacrylic emulsion, polyethylene fibers and a lotus leaf hydrophobic agent; the frost-resisting agent comprises glycerol, rubber powder, alunite powder, calcium lignosulphonate, sodium sulfate, ethanediol, water and a sodium carbonate solution. The preparation method comprises the steps of the preparation of a first mixture, the preparation of a second mixture, and the preparation of finished products. The C30 concrete has the advantages that the impervious and frost-resisting performance are good, and the strength level of the concrete reaches C30.

The invention relates to a hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive comprises, by mass, 5-15 parts of a plasticizer, 20-40 partsof polyisobutylene, 20-50 parts of a thermoplastic elastomer, 40-70 parts of tackifying resin, 0.1-1 part of an antioxidant, 2-5 parts of an additive and 0.5-2 parts of an anti-UV assistant. The additive can increase the Van der Waals force among hot-melt adhesive molecules to effectively prevent pop-open of overlap edges, caused by the sliding of an adhesive layer; and the polarity of the polyisobutylene is similar to that a waterproof coiled material, so the wettability to the waterproof coiled material of the hot-melt pressure-sensitive adhesive is enhanced, thereby the skin-like contact between the hot-melt adhesive and the waterproof coiled material is generated, the intermolecular effect between the hot-melt adhesive and the waterproof coiled material is increased, the infiltration of water molecules is blocked, water escaping from the overlap edges of the coiled material is prevented, and the peeling strength of the overlap edges is increased. The anti-UV assistant can absorb ultraviolet lights in sunshine, and releases the ultraviolet lights in a heat form in order to achieve a good anti-UV aging effect.

The invention discloses a stretching assisting orthosis of knee joints. The orthosis comprises a thigh orthopedic piece, a shank orthopedic piece, an elastic belt in the stretching state and two knee connection pieces. Two ends of the knee connection pieces are symmetrically fixed on two sides of the shank orthopedic piece, and the other two ends are symmetrically linked to two sides of the thigh orthopedic piece. One end of the elastic belt is connected to the front surface of the thigh orthopedic piece and the other end is connected to the front surface of the shank orthopedic piece. According to the invention, by using the elastic belt to stretch the thigh orthopedic piece and the shank orthopedic piece, it can be achieved that firstly when a patient is walking, quadriceps femoris is assisted to perform active motion, knees of the patient are stretched during buckling and the knee joints are stretched straight; and secondly when the patient is not walking, the orthosis can be used for training ham string tendons and musculus gastrocnemius to perform resistance motion so as to enhance muscle force of lower limbs, thereby achieving an effect of stabilizing the knee joints.

The invention discloses auxiliary stretching equipment for fitness, and relates to the field of fitness equipment. The auxiliary stretching instrument for fitness comprises a supporting block and a base, and the base is welded to the side wall of the supporting block. A sliding groove is formed in the side, close to the base, of the supporting block. The top wall of the supporting block is rotationally connected with a rotating handle. A transmission mechanism is arranged in the supporting block, the rotating handle is in transmission connection with two sliding blocks through the transmissionmechanism, the two sliding blocks are slidably connected to the inner wall of the sliding groove and penetrate through the sliding groove to be fixedly connected with moving seats, and pedal plates are welded to the upper surfaces of the moving seats. According to the auxiliary stretching instrument for fitness, by means of the transmission mechanism and the two movable seats, firstly, the two feet are placed on the two movable seats correspondingly and abut against the pedal plates, the two movable seats move in the opposite directions by rotating the rotating handle, and the stretching effect on the two legs is achieved in the moving process.

The invention provides an occlusion device which adopts a net structure woven by shape memory wires, wherein the net structure comprises a columnar support part and at least one flow resisting disc, wherein the at least one flow resisting disc is connected with the support part through one columnar torsion part, the diameter of the torsion part is smaller than that of the support part and that of the at least one flow resisting disc, flow resisting membranes are arranged in the flow resisting disc and the support part, connecting joints are arranged on the outer end surface of the flow resisting disc or the support part, the net structure is formed by alternately weaving thick wires and fine wires, the thick wires are uniformly arranged in the perimeter direction of the net structure, and at least one fine wire is arranged between every two adjacent thick wires. The occlusion device is woven by combining the thick wires and the fine wires, the conveying effect is effectively guaranteed, and the memory rebound performance is guaranteed; and besides, the occlusion device can have a stretching effect to a certain extent, therefore, the device can be adjusted according to diseases and has good adaptability.

The invention belongs to the field of building construction, and particularly discloses a building engineering construction waste smashing and recycling device. The building engineering construction waste smashing and recycling device comprises a smashing cylinder, a rotating shaft is rotatably connected into the smashing cylinder, the rotating shaft is provided with a smashing blade, and the rotating shaft is hollow. A plurality of groups of anti-winding assemblies are arranged on the outer wall of the rotating shaft, and the groups of anti-winding assemblies are distributed around the rotating shaft in the circumferential direction. Each group of anti-winding assembly comprises a plurality of protective pieces attached to the outer side wall of the rotating shaft, the protective pieces in each group of anti-winding assembly are distributed in the axial direction of the rotating shaft, one ends of the protective pieces are rotatably connected to the outer wall of the rotating shaft, and the other ends of the protective pieces are attached to the outer wall of the rotating shaft. The protective pieces are connected with an opening mechanism. A magnet is slidably connected into therotating shaft, a cutter which can be attracted with the magnet is further arranged on the outer wall of the rotating shaft, the cutter is located outside the anti-winding assemblies, and the cuttingedge of the cutter can penetrate through the positions between the connection ends and the free ends of the anti-winding assemblies. The building engineering construction waste smashing and recyclingdevice can solve the problem that the rotating shaft is wound with material when waste is smashed.

The invention discloses a fixing device of an optical detector, which comprises two parallel slide rails (8) which are positioned on a base (9) and are vertical to the base (9), a clamp body (1) and a clamp rear stand (10) which are positioned on the parallel slide rails (8) and are connected through a long connecting rod (4) and a guide rod (11), a pressure claw (2) for a fixed PCB (3) on the clamp body (1), a connecting rod (5) on the clamp body (1) and a blocking seat (6) positioned at the front end of the optical detector, wherein a tension spring (7) is arranged between the clamp rear stand (10) and the guide rod (11). The fixing device of the optical detector has the advantages that the provided tension spring (7) can effectively produce an acting force opposite to the force produced by extension or compression of each component of the running optical detector so as to reduce rock produced during running, enhance the running stability and improve the detection precision.

The invention discloses a printer feeding device. The printer feeding device comprises a door-shaped frame, wherein an upper dust-sticking roller and a lower dust-sticking roller are arranged in the door-shaped frame, the axes of the upper and the lower dust-sticking rollers are distributed on two parallel vertical planes; a static-removing roller is further arranged in the door-shaped frame; thestatic-removing roller is parallel to the axis of the lower dust-sticking roller; and the upper dust-sticking roller, the lower dust-sticking roller and the static-removing roller all can rotate around the axes. In the invention, the dust-sticking rollers can quickly remove fine particles, impurities, dusts and the like on the surface of paper; the static-removing roller can effectively eliminatethe static generated during the dust removing process of the paper, and cooperates with the lower dust-sticking roller to play a role of stretching, so that paper does not cockle after the dust removal; the finished product ratio of printing products is improved; downtime for cleaning equipment is shortened; defective percentage and paper waste are reduced; the structure is simple; and the deviceis convenient to use.

The invention discloses a modified material capable of improving the structural strength of a waterproof sheet and a waterproof sheet production line capable of improving the production efficiency andthe production quality. The production line comprises a reinforcement fabric collection and storage device, a pre-impregnation device, a dip tank, a laminating device and a cooling and drying device,wherein a reinforcement fabric offset adjustment mechanism is formed on the reinforcement fabric collection and storage device through two groups of round reinforcement fabric conveying rolls, two groups of round reinforcement fabric conveying rolls on the reinforcement fabric collection and storage device comprise a round conveying roll group and a round adjusting roll group, the round conveyingroll group comprises two round conveying rolls, the round adjusting roll group comprises multiple staggered round adjusting rolls, and the diameter of each round conveying roll is larger than that ofeach round adjusting roll. The reinforcement fabric collection and storage device of the modified bituminous waterproof sheet production line is provided with a reinforcement fabric offset adjustmentrack capable of adjusting the levelness of reinforcement fabric, multiple staggered round adjusting rolls are arranged on the reinforcement fabric collection and storage device, the reinforcement fabric can be pulled up through vertically staggered and serially connected round adjusting rolls, and flatter transportation of the reinforcement fabric is ensured.

The invention discloses a waterproof thermal insulation outer wall of a civil building and a construction method of the waterproof thermal insulation outer wall, and relates to the technical field of building outer wall design. The waterproof thermal insulation outer wall comprises a wall body, a plurality of thermal insulation plates arranged on the wall body and a plurality of mounting frames arranged on the sides, away from the wall body, of the thermal insulation plates, a connecting position between every two vertically adjacent thermal insulation plates is covered by the mounting frames; mounting pieces used for connecting the adjacent mounting frames are arranged between every two vertically adjacent mounting frames, hoisting assemblies used for connecting the adjacent mounting frames are arranged on each row of thermal insulation plates, each hoisting assembly comprises connecting ropes and a plurality of connecting pieces arranged at intervals in the length direction of a connecting rope, and the connecting pieces are connected with the connecting ropes and the corresponding mounting frames; the upper end of the connecting rope is fixedly connected with the upper end of the wall body, a fixing frame is arranged on the side, away from the wall body, of the thermal insulation plate close to the ground, and a fixing piece used for fixing the fixing frame is arranged between the fixing frame and the wall body. The waterproof thermal insulation outer wall of the civil building and the construction method of the waterproof thermal insulation outer wall has the effect of improving the connection strength between the thermal insulation plate and the wall body.

The invention discloses a ligament stretching device for aerobics training, which comprises a base. A traction seat is arranged at one end of the base, a cushion is arranged at the other end of the body, a sliding groove is reversely formed in the base along the length direction, the traction seat is arranged in the sliding groove in a sliding manner, a traction mechanism used for driving the traction seat to be away from the cushion is arranged between the sliding groove and the traction seat, a grip is arranged on the side wall of the traction seat, positioning frames are arranged on the twosides of the base, a positioning rod is arranged on the positioning frame in the length direction, the positioning rod is arranged on the positioning frame in a rotating mode, a plurality of abuttingidler wheels with gradually-increased diameters are arranged on the positioning rod in a sliding mode, the abutting idler wheels are eccentrically arranged on the positioning rod, a locking piece used for limiting sliding of the abutting idler wheels is arranged on the positioning rod, and a driving piece used for driving the positioning rod to rotate is further arranged on the positioning frame.The device can assist in exercising and stretching of side-by-side stretching and knee bending, and the exercising and stretching effect is improved.

The invention relates to a folding row table, which comprises a plurality of table units, wherein each table unit comprises a table top and a drawer plate, the bottom of the table top is provided withan accommodating groove, the drawer plate is vertically and adjustably mounted in the accommodating groove through a lifting device, a table foot group is rotatably assembled on the side wall of theaccommodating groove, a table foot driving device is further mounted on each table unit, any two adjacent table units are hinged and connected through a first hinge or a second hinge, and the first hinge and the second hinge are alternately arranged along the extending direction of the row tables; and the folding row table further comprises handrail driving devices arranged at the two ends, each handrail driving device is hinged to the table units at the two ends respectively, and each handrail driving device comprises a receiving module, a control module, a driving roller module and a power supply module. By adopting the folding row table provided by the invention, the row table not only has the conventional storage function of a common row table, but also can be folded, so that the specification and the volume of the row table are reduced, and the carrying and the direction adjustment of the row table are facilitated.

The invention discloses a liftable single-track bridge erecting machine. The liftable single-track bridge erecting machine comprises a base; a counterweight block is arranged at the left end of the upper side of the base; a first motor is arranged on the right side of a control console; a connecting roller is arranged on the right side of the first motor; a steel wire rope is wound on the connecting roller; a supporting pipe is arranged at the upper end of the right side of the counterweight block; racks are arranged at the left and right ends of the interior of the supporting pipe; a connecting block is arranged at the lower end between the racks; a telescopic rod is arranged on the upper side of the connecting block; a supporting plate is arranged on the upper side of the telescopic rod;a reinforcing frame is arranged on the upper side of the supporting plate; a top plate is arranged on the upper side of the reinforcing frame; an electric telescopic rod is arranged at the right endof the lower side of the supporting plate; rollers are arranged on the lower side of the electric telescopic rod; a slide groove is formed in the lower side of the supporting plate; a third motor is arranged on the left side of the slide groove; a lead screw is arranged on the right side of the third motor; slide blocks are arranged at the left and right ends of the lead screw; clamping rods are arranged on the lower sides of the slide blocks; and projections are arranged at the lower ends of the left and right sides of the clamping rods. According to the liftable single-track bridge erectingmachine, the movement of equipment and connection between bridge bodies can be effectively made convenient; convenience is provided for people and the use of the equipment; and the utilization rate ofthe equipment is increased.

The invention discloses a gripper for a mobile robot, a robot arm and the mobile robot. The gripper comprises a bottom plate. The bottom plate and a mechanical arm of the mobile robot are fixed, and the bottom plate rotates along with rotation of the mechanical arm. At least one mechanical finger is fixed to the bottom plate, and the mechanical fingers rotate under rotation of the mechanical arm so as to stir a door handle or a valve handle or a valve hand wheel. A finger elastic sheet with a protrusion is arranged on the inner side of each mechanical finger, the mechanical fingers can penetrate the door handle through the elastic function of the finger elastic sheets, the protrusions are used for fixing and limiting the door handle, the door handle is opened better, and meanwhile the fixing manner of the elastic sheets can guarantee elastic sheet fixing and can also achieve the telescopic effect.

The invention discloses a multifunctional table used for a hotel. The table comprises a supporting base and a table top arranged on the supporting base. A telescoping support column is connected between the supporting base and the table top. The support column comprises a plurality of sleeves which are sleeved with each other in sequence. The table top comprises a plurality of sectors which are spliced together. Each sector is fixedly connected with one sleeve. The lengths of sleeves reduce in sequence from inside out. The table can be changed into a desk or a storage rack according to requirement of a hotel, and the table is convenient to use.

The invention relates to a crutch, in particular to a telescopic underarm crutch. The telescopic underarm crutch comprises a supporting part, first supporting rods, a second supporting rod, a third supporting rod and a hand-held rod, wherein the number of the first supporting rods is at least two, each first supporting rod is provided with a plurality of locating holes and spring pins corresponding to the locating holes, the second supporting rod is in the shape of Y, the lower end portion of the second supporting rod is provided with a plurality locating holes and spring pins corresponding to the locating holes, the hand-held rod is connected with the lower end portions of the first supporting rods, the upper ends of the first supporting rods are fixedly connected with the supporting part, the lower ends of the first supporting rods are arranged on the upper end portion of the second supporting rod in a sleeved mode, and the third supporting rod is arranged on the lower end portion of the second supporting rod in a sleeved mode. The telescopic underarm crutch has the advantages that through locating of the locating holes of the first supporting rods and the locating holes of the second supporting rod, the telescopic effect of the crutch is achieved.

The invention discloses an electric power grounding post for electric power engineering. The electric power grounding post comprises a grounding post, wherein a positioning mounting disc is welded atthe top of the grounding post, the top of the positioning mounting disc is in threaded connection with a mounting sleeve, a first grounding cone is welded at the bottom of the grounding post, the interior of the grounding post is hollow and is fixedly provided with an internal threaded limiting disc, a positioning lifting sleeve with external threads is movably inserted into the grounding post, the interior of the positioning lifting sleeve is of a hollow structure, the positioning lifting sleeve spirally penetrates through a center through hole of the internal threaded limiting disc, the bottom of the positioning lifting sleeve movably penetrates through the first grounding cone to be connected with a second grounding cone, the interior of the second grounding cone is of a cavity structure, and the interior of the positioning lifting sleeve is communicated with the cavity of the second grounding cone. According to the invention, the structure of the existing grounding post is improved, so that the grounding post can be inserted into the ground firmly, early-stage and late-stage good use is facilitated, manpower is reduced, and the working efficiency is improved.