31results about How to "Not easy to roll off" patented technology

The invention discloses dirt removal emulsion for cleaning a hard surface. The dirt removal emulsion is prepared from, by weight, 30-40 parts of anionic surfactant sodium dodecylpoly(polyethylene) sulfate, 25-35 parts of nonionic surfactant fatty alcohol-polyoxyethylene ether, 10-20 parts of natural calcium carbonate mild abrasive, 2-4 parts of ethylenediaminetetraacetic acid, 35-45 parts of water, and 6-8 parts of auxiliaries including hydroxypropyl acrylate and kerosene by the weight ratio of (5-7):1. The dirt removal emulsion can fast spread on the hard surface, does not roll to the ground easily and is beneficial for improving the cleaning effect, which may have relation to the weight ratio of hydroxypropyl acrylate to kerosene in the raw materials. The provided dirt removal emulsion has a chemical dirt removal function (the surfactant) and a physical dirt removal function (the calcium carbonate mild abrasive) and is capable of effectively removing dirt and suitable for dirt treatment on hard surfaces of ceramics, stainless steel, marble, rigid plastic, glass and the like.

The invention discloses a polyimide airgel with petal effect, a preparation method and application thereof. The polyimide airgel with petal effect includes: a porous network skeleton composed of polyimide, and a plurality of uneven defect structures distributed in the porous network skeleton, the polyimide The amine airgel has a rough surface topography, and the polyimide airgel has a contact angle with water >90°. The preparation method includes: polymerizing a mixed system containing acid anhydride monomers, diamines and solvents to form polyamic acid, adding a chemical dehydrating agent to the mixed system, and then standing to form a polyimide gel , and then through aging, solvent replacement and drying, the polyimide airgel with petal effect was obtained. The polyimide airgel with petal effect of the present invention has superhydrophobicity, strong action force on water droplets, water resistance, high and low temperature resistance, nonflammability, low thermal conductivity, and has great application prospects.

The invention provides a track traffic vehicle with sleeping berths. The track traffic vehicle with sleeping berths is composed of a passenger room, an under vehicle part and an up vehicle part, wherein the space inside the passenger room is divided into three relatively independent spaces, i.e., a left space, a right space and a middle space, along the width direction of the vehicle; the middle space is a channel; the left space and the right space are provided with a row of partitions respectively; two layers of beds are arranged in each partition; the beds in adjacent partitions are staggered along the length direction of the room; each bed is independently and correspondingly provided with a tea table, a window, a lighting system and an air-conditioner heating facility. As the beds are distributed along the length direction of the passenger room, the safety and comfort level of passengers are improved; meanwhile, as the two layers of beds are staggered on the two sides of the channel in a manner of four rows, the fixed quantity of the passengers is close to the fixed quantity of three layers of the beds, and the economical efficiency of the vehicle with the sleeping berths is improved greatly; furthermore, each bed form a relatively private space by using each partition wall, and independent windows and tea tables are arranged in the partitions, so that passengers are convenient to move, and go up and down the beds, and the level and comfort of the vehicle with the sleeping berths are improved.

The invention discloses an anti-silt wearing wear-resistant bead welding rod, composed of a stainless 1Cr13 or 2Cr13 Martensite core wire and a medicine skin covering the surface of the core wire by a binder, wherein the medicine skin component comprises the following components in percentages by weight: 30-45% of marble, 20-30% of fluorite, 4-9% of fluorite, 3-5% of zircon sand, 3-5% of potassium feldspar, 4-10% of nitrided ferrochrome and 12-20% of ferrotitanium. The welding rod provided by the invention is scientific and reasonable in formula and low in costs, microalloying Ti and N element are subjected to metal transferring to a bead welding layer by a welding rod medicine skin, so that uniform and tiny TiC and TiN particles are separated from the metal of the bead welding layer, the hard particles are high in rigidity, keeps well combination with the substrate, improves hardness and toughness of the bead welding layer, and also ensures the good corrosion resistance, has the advantages of welding in full positions, and being good in anti-pore capacity.

The invention relates to the technical field of medical instruments, in particular to a medical lower limb training device which comprises a bed body, a mounting frame is arranged on the bed body, a driving plate is arranged on the mounting frame and located above the bed body, two driving blocks are slidably connected to the driving plate, the sliding directions of the two driving blocks are parallel to each other, and the driving blocks are arranged on the mounting frame. The sliding direction of the driving block is located on the vertical face, pedals are rotationally connected to the driving block, two sliding grooves allowing the pedals to penetrate in a sliding mode are formed in the bed body, the sliding grooves correspond to the pedals in a one-to-one mode, and the ends, away from the driving block, of the pedals penetrate through the sliding grooves and are rotationally connected with linkage plates. The ends, away from the corresponding pedals, of the two linkage plates are rotationally connected with the same rotating base, and the rotating planes of the linkage plates and the rotating planes of the pedals are in a vertical state. The burden of rehabilitation training of a patient can be reduced.

The invention relates to a low-stress optical cable pay-off device. The low-stress optical cable pay-off device comprises a base and two sets of supporting rods; the two sets of supporting rods are vertically fixed to the edges of the two sides of the base correspondingly; each supporting rod comprises a main rod body and an auxiliary rod body, wherein the lower end of the main rod body is fixedly connected with the base, the main rod body is of a box iron structure, and a first motor is fixed to the upper end of each main rod body; the auxiliary rod bodies are in inserted connection with groove openings of the main rod bodies in a sliding manner, the end faces of the sides, deviating from the groove bottoms of the main rod bodies, of the auxiliary rod bodies are of rack structures, the first motors drive the auxiliary rod bodies to slide up and down along the groove openings of the main rod bodies, the auxiliary rod bodies are provided with a plurality of sets of inserting holes distributed at equal intervals in the vertical direction, and positioning bolts penetrating the auxiliary rod bodies are inserted and connected to the upper ends of the main rod bodies; and clamping assemblies which are horizontally and oppositely arranged are fixed to the upper ends of the two sets of auxiliary rod bodies, and a winding wheel wound with a low-stress optical cable is clamped between the two sets of clamping assemblies. The base is provided with a battery used for supplying power to the first motors. According to the low-stress optical cable pay-off device, winding wheels different in size can be installed, and convenience of the installing process is improved.

The invention discloses a ball picking device for badminton court training, comprising a badminton racket, the upper surface of the badminton racket is provided with a bearing plate; the bearing plate is provided with several ball-holding grooves for accommodating a single shuttlecock , the upper concave surface of the ball-holding groove matches the lower surface when the shuttlecock is placed on the ball-holding groove; the ball-holding groove extends along the radial direction of the badminton racket, and the ball-holding groove is close to the center of the badminton racket One end of the shuttlecock is used to accommodate the head part of the shuttlecock, and the end of the ball-holding groove away from the center of the badminton racket is used to accommodate the feather part of the shuttlecock. The slots limit the position of the shuttlecock, which is more stable and difficult to roll off during the moving process, and can keep several shuttlecocks stably placed on the racket, which is more efficient and more stable and reliable than the existing way of swinging the shuttlecock.