122results about How to "Not easy to knot" patented technology

The invention relates to the field of underwater robots, in particular to an electromagnetic automatic line throwing appliance for recycling an underwater robot. The electromagnetic automatic line throwing appliance for recycling the underwater robot comprises an electromagnet, a spring clamping ring, a cable, an end cover, a buoyancy block, a launching tube, a bottom steel plate, a spring and a base, wherein the base is fixedly mounted on an underwater robot main body; the launching tube is fixedly mounted on a flange of the base; the electromagnet is arranged in the launching tube and controlled by a control system of the underwater robot main body to be powered on and off; the electromagnet is filled with oil to balance external pressure; the bottom steel plate is arranged in the launching tube and adsorbed by the electromagnet; the spring sleeves the electromagnet; the spring pushes the bottom steel plate and each part above the bottom steel plate out of the launching tube through the spring clamping ring; the cable and the buoyancy block are arranged in the launching tube, within a space between the end cover and the bottom steel plate; one end of the cable is fixedly connected with the bottom steel plate; and the other end of the cable is connected with the underwater robot main body after being led out from the launching tube. The electromagnetic automatic line throwing appliance has the advantages of convenient operation, small size and low cost and can bear deep sea water pressure for a long time.

The invention discloses a butterfly high-efficiency self-adaptive plastic-fiber mixed filter material filter. The filter consists of filter material monomers, wherein each filter material monomer is formed by connecting a weight-balancing core body and paired corrosion-resistant balancing filtering wing bodies in a matching way; the surface of the weight-balancing core body is made of plastic; the weight-balancing core body is ellipsoidal; the threshold of the average density p0 of the weight-balancing core body is between 1.30 and 1.50 g/cm<3>; the two ends of a long axis of the ellipsoidal weight-balancing core body are provided with balancing wing bodies respectively; each balancing wing body is made from fiber bundles consisting of artificial fiber yarns; and the inner ends of the artificial fiber yarns constituting each fiber bundle are fixedly connected to each end of the long axis of the weight-balancing core body and the other ends of the artificial fiber yarns are in a diffused state so as to form a whisker form. The filter has the technical advantages of high porosity, high filtering speed, high filtering accuracy, low resistance, high filth holding capacity, small backwashing water using amount, high periodic water yield, low operating cost, small floor area and high anti-load impact capacity.

The invention discloses a multifunctional firefighter lifesaving device, belonging to the field of firefighting equipment. The multifunctional firefighter lifesaving device comprises a shell with an opening at one end and an end cover which covers the opening of the shell, wherein a main shaft is fixedly arranged in the shell; the main shaft is sequentially sleeved with a pallet wheel, a rope reeling wheel, a coil spring and a ratchet wheel; a pallet fork is arranged on a position, corresponding to the pallet wheel, in the shell; the end surface of one side, close to the pallet wheel, of the rope reeling wheel is provided with an centrifugal fling block and a fling block spring which are connected; the end surface of the other side of the rope reeling wheel is provided with a dented concave table; the coil spring is embedded in the concave table; the rope reeling wheel is wound with a rope; one end of the rope is fixed on the rope reeling wheel, and the other end extends out of the shell; a pallet is arranged on a position, corresponding to the ratchet wheel, in the shell; the pallet is connected with a pallet spring in the shell; and the pallet is further provided with a multifunctional button which extends out of the shell. By using the multifunctional firefighter lifesaving device, self-saving and escaping of a firefighter can be realized during a task.

The invention discloses an efficient winder device for spinning; the efficient winder device for spinning comprises a pedestal; the pedestal is respectively provided with a first upright column and a second upright column which are used for installing winders for winding yarns and yarn carding tubes; the winders are used for winding yarns; the yarn carding tubes are used for carding the yarns; the first upright column is sleeved with at least three winders in order to conveniently wind three pieces of yarns at the same time, thus increasing the efficiency; through holes are arranged at the same heights on the second upright columns with respect to the winders; the yarn carding tubes are arranged inside the through holes; the inner walls of the yarn carding tubes are provided with arc-shaped inner layers whose middle portions protrude inwardly, thus yarns are unlikely to be tied in knots while passing through the yarn carding tubes; and the inner layers made of ceramic or plastic materials reduce the friction to the yarns; the first upright column is provided with a motor for driving the winders to rotate. The efficient winder device for spinning has the advantages of simple in structure, convenient in use, efficient, and the like.

The invention provides a ground wire storage frame and belongs to the technical field of tools used for putting away, spreading and storing ground wires during circuit and power transformation construction and maintenance. According to the technical problem to be solved, the ground wire storage frame provided by the invention is capable of making the ground wires be used and stored on site conveniently, knotting is not liable to occur, using is convenient and clean, and a protection function on the ground wires is achieved. According to the adopted technical scheme, the ground wire storage frame comprises a bottom plate, a top plate, vertical support rods, a rotary shaft and a crank. The bottom plate and the top plate are fixedly connected to form a frame through the multiple vertical support rods. Through a bearing, the rotary shaft is horizontally installed in the frame composed of the bottom plate, the top plate and the vertical support rods, and one end of the rotary shaft extends out of the frame to be connected with the crank through a quadrangular end. According to the ground wire storage frame, the crank controls the rotary shaft to rotate to achieve twining storage of the ground wires on the rotary shaft. During usage, wire taking can be easily achieved by directly pulling the ground wires, the ground wires are not liable to be knotted, work is clean, and the labor intensity of workers is relieved.

The invention discloses a sulfonic acid type water-based polyurethane pressure-sensitive adhesive and a preparation method thereof. The sulfonic acid type water-based polyurethane pressure-sensitive adhesive takes a polymer composed of isocyanate, polymer diatomic alcohol, small molecular polyhydric alcohol and a chain extender as a main body of the pressure-sensitive adhesive, takes deionized water as a solvent, is free of toluene and other organic solvents, and is nontoxic, pollution-free and environment-friendly; the chain extender, a stabilizer, a regulator and a blocking agent are also added; a mixture of 8-naphthylamine-1,6-disulfonate sodium, 1,4-bis(butyryloxy)-2-butene and sodium N-tris(hydroxymethyl)methyl-3-aminopropane sulfonate is selected as the chain extender; under combinedaction of the three substances, a good chain extending effect is achieved, the length of a polymer is extended, the structure of the polymer is adjusted, and the chain extender has a synergistic effect with the polymer main body; and meanwhile, the prepared pressure-sensitive adhesive has certain temperature tolerance, the finally prepared pressure-sensitive adhesive has high initial viscosity and strong holding power, and the application range of the water-based polyurethane pressure-sensitive adhesive is greatly extended.

The invention discloses a fur niter-dyeing machine. The fur niter-dyeing machine comprises a rotary drum structure, a filtering device and a stirring device. The rotary drum structure comprises a flat and straight baffle plate arranged at the inner surface of the drum body along an axis direction, an inclined baffle plate structure and inlet and outlet water pipes. The filtering device comprises a liquid inlet pipe, a primary filtering device and a secondary filtering device. The opening of a liquid outlet pipe is arranged above the primary filtering device. The primary filtering device comprises a rubber scrubbing brush, a hairbrush and a primary filtering screen. The rubber scrubbing brush is located in front of the hairbrush. The secondary filtering device comprises a secondary filtering screen and a secondary liquid outlet pipe. The stirring device comprises a temperature control device, a steam heating device and an inclined stirring device arranged in the cylindrical shell of the stirring device. A water outlet of the rotary drum structure is connected to the liquid inlet pipe of the stirring device. The primary liquid outlet pipe and the secondary liquid outlet pipe of the filtering device are respectively connected to the primary liquid inlet pipe and the secondary liquid inlet pipe of the stirring device. The fur niter-dyeing machine can be used in fur niter-dyeing and guarantees finished fur quality.

The present invention provides a vibration fermentation apparatus for biological degumming of phloem fiber. The apparatus comprises: a fixed water tank; a load device, wherein the load device can move reciprocatly in the fixed water tank, the load device comprises a bracket and a material load rack, the bracket is arranged on the top of the fixed water tank and can move reciprocatly the material load rack is connected with the bracket, moves reciprocatly through the bracket driving, and is arranged inside the fixed water tank; a transimisson apparatus provided for driving the load device to move reciprocatly; a driving apparatus provided for driving the transimisson apparatus to move. According to the present invention, when the vibration fermentation apparatus is used for biological degumming of the phloem fiber, the phloem fiber is placed on the material load rack; after the amplification-culture degummed bacteria is inoculated, the driving apparatus is started; the transimisson apparatus drives the bracket to move reciprocatly; the bracket drives the material load rack to move reciprocatly in the fixed water tank, such that the phloem fiber on the material load rack completely contacts with the bacteria so as to realize the vibration fermentation.

The invention discloses a yarn winding device. The yarn winding device comprises a body and a base which is arranged below the body, wherein the body comprises a tip cone, a vertical rod and a bottom cone. The yarn winding device is characterized in that a plurality of circles of protrusions are arranged on the vertical rod, the tip cone is an inverted cone which is big-end-up, and the bottom cone is a cone which is big-end-down. According to the yarn winding device, the structure of the body is improved, yarn can not be disengaged or knotted easily due to the arrangement of the tip cone and the bottom cone, friction and resistance are increased when the device works due to the fact that the circles of protrusions are additionally arranged on the vertical rod, and slipping and disengaging of the yarn can not occur easily. The yarn winding device has the advantages of being simple in structure, convenient and fast to use, low in cost and the like.

The invention discloses a method for winding a circular frame coil; the method mainly comprises the steps as follows: cutting off and straightening a circular frame, and paralleling a winding to a straight long strip shape frame; carrying out circular shape righting to the parallel winded coil; and curing the shape-righting circular coil. The method has simple process and high production efficiency, and is not easy to generate common adverse issues which appear in circular winding methods such as line broken, knot tied, and the like; and the winded coils are arranged closely and uniformly, therefore, the method is especially suitable for industrial mass production.

The invention belongs to the field of packaging bag processing, particularly relates to an automatic stretching, cutting and filamentation device for packaging bag processing, and aims to solve the problems that an existing stretching, cutting and filamentation device is poor in stretching effect, needs braided lines for natural shaping, is low in efficiency and speed, needs manual collection, consumes time and labor and is poor in collection effect, braided lines are prone to knotting and breakage and using and selling are affected. According to the scheme, the device comprises a processing box, an extruder and the braided lines, wherein the extruder is located on one side of the processing box, and first bases are fixedly connected to the four corners of the bottom of the processing box correspondingly. According to the invention, while the braided lines are tightly pressed through a pressing assembly, a stretching assembly is used for stretching the braided lines, discontinuous stretching is carried out, the function that the braided lines can be well stretched without being snapped can be achieved, the braided lines can be shaped more quickly through a shaping assembly, and the braided lines can be collected and taken out conveniently through a collecting assembly.

The invention discloses an umbilical cord capstan with a life support system. The umbilical cord capstan with the life support system comprises a base seat, a rotation disk, a hydraulic drive device, a manual brake device and the like, wherein the hydraulic drive device drives the rotation disk to rotate forward or backward so as to draw back or stretch out a diving umbilical cord in real time, communication signals are firstly transmitted to a rotation junction box through a fixing junction box and then transmitted to the diving umbilical cord through a slip ring during the diving process, and real-time communication during the diving process is achieved. When a diver dives, the diver can timely control the diving umbilical cord through the manual brake device if an emergency or danger happens, and therefore diving safety of the diver is guaranteed.

The invention belongs to the technical field of concrete, and particularly relates to superfine steel slag powder based on a 3D printing technology and a preparation method of the superfine steel slag powder. According to the invention, the coarse steel slag powder raw material is ground until the particle size is less than or equal to 6.5 mu m and the specific surface area is 720-750m < 2 >/kg, so that the steel slag powder meets the superfine requirement and can be quickly combined and cured with cement in concrete. In addition, the invention further provides an annular blowing type ball mill which structurally comprises a supporting ring unit, a middle rotating ring unit, a grinding cylinder unit, a feeding cylinder unit and a sliding pipe unit and has the effects of being sufficient in grinding strength and high in grinding efficiency.

The invention relates to a static drill rooted pile lifting and threading device. The device comprises a self-balancing lifting tool for lifting a pipe pile and a lifting rope hook assembly; the lifting rope hook assembly is mounted on the self-balancing lifting tool and comprises a first pulley, a hanging rope arranged on the first pulley and a pendant connected to the lowermost end of the hanging rope; the first pulley is connected with a first driving mechanism and can be wound around the first pulley under the action of the first driving mechanism to ascend or descend; and the pendant penetrates through a middle hole channel of a lifted tubular pile. When the device is used, an upper pile section is lifted, the pendant penetrates through the middle hole channel of the upper pile section and the bottom of the upper pile section, then the pendant is connected with a prestressed wire at the top of a lower pile section buried underground, and the first pulley performs winding to drivethe prestressed wire at the lower part to move upwards and penetrate through a hole of the upper pile section. Compared with the prior art, the device can solve the problem that a wire in a pile holeof the lower pile section can hardly penetrate through a hole of the upper pile section, and the construction process is greatly accelerated.

The invention discloses a garbage can with intelligent packaging and bagging functions. The garbage can comprises an automatic bagging device (30), an automatic packaging device (32), a cover openingdevice (3), a human body infrared monitoring sensor (1) and a control system (40); the automatic bagging device (30) and the automatic packaging device (32) are respectively arranged on a garbage cancover (11) and at the bottom of a garage can inner barrel (15); the automatic bagging device (30), together with two bag pulling shafts (7) located on the garbage can cover (11), is used for carryingout bagging on the garbage can through a pulling-down pawl I (10) and a pulling-down pawl II (37) located on the inner wall of an outer barrel (21) right above the top of the inner barrel (15); the automatic packaging device (32) is used for monitoring the amount of garbage through a pressure sensor (18) at the bottom, a pressure monitoring ring (13) at the upper end of the inner wall, a pressuremonitoring ring (16) at the middle end of the inner wall and four ultrasonic sensors (12) inside the top end of the garbage can cover (11), and garbage bags are packaged by a rotating mechanism (33) at the bottom and the pulling-down pawl I (10) and the pulling-down pawl II (37) right above the top of the inner barrel (15); and the human body infrared monitoring sensor (1) can monitor a human bodyand control opening and closing of the garbage can cover (11) through the cover opening device (3). According to the garbage can with the intelligent packaging and bagging functions, the problems ofgarbage bag breakage, sewage flowing and the like when the garbage is being bagged and packaged can be effectively solved, the transmission of infectious diseases through the garbage is greatly blocked, the stability of the garbage bags is increased, and thus the quality of life is improved.

The invention discloses an expansible earphone which includes an earphone cord connected with an earplug and an earphone plug as well as a shell box for containing the earphone cord. A control device which can control the extension and the contraction of the earphone cord is arranged inside the shell box; the earphone cord can be extended or contracted and positioned randomly so that the earphone cord is not exserted and does not stumble users or the persons walking around when in use; moreover, the earphone cord is not easy to be knotted or pushed, and the service life of the earphone cord is prolonged.

The invention relates to the technical field of processing of shoes, in particular to a shoelace placement device. The shoelace placement device comprises a conical metal container with a downward head, a round opening is formed in the center of the top of the metal container, and the metal container contains talcum powder. The shoelace placement device is characterized in that the top surface of the metal container is horizontally placed, connecting buckles are evenly arranged on the top edge of the metal container in the peripheral direction and are hung through ropes inclining outwards, a magnet layer is arranged on the inner side of the bottom of the metal container, and a metal end socket for absorbing a shoelace is arranged on the outer side of the bottom of the metal container. By means of the technical scheme, the shoelace is prevented form abrading the hands of workers easily, is not prone to being knotted and can penetrate through a shoe buckle more easily.