703results about How to "Avoid knots" patented technology

The invention discloses a rope net type space debris capturing and cleaning system which comprises a transmission subsystem and a fly net subsystem. The transmission subsystem comprises a transmitter, a net cabin, a net cabin cover ejecting device, a buffer device, a tying rope tension control device and a tying rope cutter, and the fly net subsystem comprises a rope net and four mass blocks; a net cabin cover can be ejected out of an outlet of the net cabin, and the rope net can be driven by the net cabin cover to be drawn out of the net cabin; the transmitter works at the moment when the fly net and a tying rope are straightened, the sides of the rope net are driven by four mass blocks according to preset transmitting opening angles, so that the rope net can fly out and is opened simultaneously until the rope net is fully opened, an object is netted after the rope net reaches the objective position, a port of the rope net is tightened under the control of the mass bocks, and the object can be completely captured; after the tying rope draws the captured object aircraft away from an orbit, the tying rope cutter cuts off the tying rope, and the object aircraft can be separated from a satellite platform. The rope net type space debris capturing and cleaning system has the advantages that a secondary transmission mode is adopted, so that twining and knotting can be prevented in rope net spreading procedures; the mass blocks are pushed to be synchronously transmitted, so that a millisecond-level synchronous transmission effect can be realized, and the shape of the rope net can be controlled advantageously.

The invention relates to an acellular biological patch, a preparation method and an apparatus thereof. In the invention, small intestines of pigs are taken as raw materials, which are subjected to a series of decellularization treatment by means of an acid, hydrogen peroxide, a mixed solution of high salt and alkali so as to obtain the acellular biological patch. According to the preparation method, after treatment by the hydrogen peroxide, the mixed solution of high salt and alkali can be employed to conduct twice recycling treatment, thus reaching the effects of thorough decellularization and antigen removal. The employment of a transverse and longitudinal alternating laying way maintains uniformity of the patch's mechanical properties, the tensile strength, suture tear force, tear strength and other mechanical indexes can well meet clinical demands, thus facilitating surgical suture operation. The employed drying mode has no need of any adhesive and suture line for fixation, so that a natural three-dimensional support structure of the product is maintained, and after implantation into the human body, no strong inflammatory response and immunological rejection response can occur. The patch has no toxicity on cells, so that infection and adhesion cannot occur in a repair process. The acellular biological patch provided in the invention is suitable for repair of body tissue defects and soft tissue injuries, and also can be used in the bioengineering field to serve as the tissue for reinforcing repair of membranous defects and infected wounds and serve as a biological scaffold material, etc.

The invention relates to the technical field of glass curtain wall cleaning equipment, in particular to a high-altitude glass cleaning device. Through rotation of a fan propeller installed on a high-speed motor which is arranged in an air outlet in the middle of a cleaning car, air at the bottom of the cleaning car is discharged at high speed, instantaneous vacuum is generated at the bottom of the cleaning car, and negative pressure difference is formed between the bottom of the cleaning car and the outside atmosphere, so that the cleaning car is attached to glass, and frictional force is formed between wheels and the glass; a driving motor of the cleaning car is provided with the wheels through a driving shaft, so that the driving motor is controlled to make the cleaning car move on a wall; a steering engine of the cleaning car is connected with the wheels through a steering shaft, so that the steering engine is controlled to make the direction of the cleaning car changed; brushes on a brush roller can be wetted out by water sprayed by an atomizing nozzle, the brush roller at the bottom of the cleaning car is driven by a brush roller motor to rotate, and the glass cleaning operation of the brushes is completed; a coiling roller drags the cleaning car through a lifting rope so as to control ascending and descending of the cleaning car, and the situation that the cleaning car falls off from a tall building due to abnormal conditions is further avoided.

The invention relates to the textile technical field, in particular to a silk fabric drying device. The silk fabric drying device comprises a box body, wherein a control box is arranged on the top of the box body, and a charge hole, a discharge hole, an exhaust fan interface and a traction roller are arranged on the side wall of the control box; a first heating deice is arranged in the charge hole; a second heating device, a guide roller and a temperature sensor are arranged in the box body; a humidity inductor is further arranged outside the charge hole and the discharge hole; the traction roller is arranged outside the discharge hole, and is connected with a traction motor; the traction motor is electrically connected with the control box; a control main board is arranged inside the control box; the control box is electrically connected with a touch display screen; the touch display screen is arranged on a front panel of the box body for receiving a user operation order, so that temperature setting is realized on the heating device; after the temperature sensor senses the temperature in the box body, the corresponding temperature value is directly displayed through the touch display screen; and after the humidity sensor senses material humidity information, the corresponding humidity value is directly displayed through the touch display screen.

The present invention discloses a method for longitudinally optimizing cutting timber. The method comprises the following steps: inputting a cutting data list into a computer device beforehand, selecting a width reference border of sawtimber to be cut for confirming the maximum width of sawtimber to be cut, transmitting the information to the computer device for selecting an optimal cutting plan through analyzation and calculation, axially moving the circular saw blade of saw cutting machine to a cut line position corresponding with the sawtimber to be cut according to instruction of computer device for longitudinally cutting the sawtimber to be cut to finished sawtimber and waste edge material. The timber cutting optimizing circular sawing machine for realizing the method of the invention comprises a circular sawing machine base, a feeding chain plate, a sawblade main shaft, a front compression roller and a back compression roller, wherein the front compression roller and the back compression roller are positioned at the front side and the back side. The marking-off equipment stand which is fixedly installed at the front end of engine base is installed with follower marking-off equipment. A moving circular saw blade is installed on the main shaft of sawblade. The main shaft assembly and the upper frame are respectively supported on the front lifting upright post and the back lifting upright post with a liftable mode. The method of the invention can greatly increase the material yielding rate and production efficiency and has the advantages of high automatization degree and wide application sphere.

The present invention relates to an automatic motor lead wire cutting and twisting assembly which may include a rack, a turntable mechanism and a power control box which are both provided on the rack. On the rack surrounding the turntable mechanism are in turn provided a wire collating mechanism, a wire teasing mechanism, a wide cutting mechanism, a single cutting mechanism and a wire twisting mechanism. A wire teasing and securing mechanism is provided on the rack above the wire twisting mechanism. A reject tank is provided on the rack below the wide cutting mechanism and the single cutting mechanism. All of the drive components of the above mechanisms are electrically connected to the power control box. Cooperating with motor production equipment, an automated production line is formed, which mainly comprises turntable mechanism, wire collating mechanism, wire cutting part, and twisting part etc., with delicate structural design, high automation level, and time and human resource saving compared to manual operation, and conduces to improve production efficiency of motor production lines.

The invention discloses a safe retracting device of a cable. The safe retracting device comprises a driving device and a driving shaft, wherein the driving shaft is rotatably sleeved with a wind-up roller; an electric slip ring is arranged on one end of the wind-up roller; the electric slip ring is connected with a connection terminal which is connected with the cable on the wind-up roller; a carbon brush is arranged corresponding to the electric slip ring, connected with the external cable and fixedly mounted; a friction clutch is arranged between the driving shaft and the wind-up roller; when the cable is wound up, the driving device drives the driving shaft to rotate, and if the friction force of the friction clutch is larger than traction force and weight of the cable, the driving shaft drives the wind-up roller to turn through the friction clutch, in order to enable the wind-up roller to automatically wind up; when the cable is paid off, the wind-up roller is continuously located at the wind-up state, but the traction force and the weight of the cable are larger than the friction force of the friction clutch, and the wind-up roller is pulled by the traction force of the cable and located at the reverse turning state, thus the cable is passively paid off by the wind-up roller. In the working process, the safe retracting device keeps the cable at a certain tension, thereby preventing the cable from tying knot, twisting and being torn down. The safe retracting device is safe and convenient to use.

The invention relates to the field of road engineering, in particular to a marking device for road paving. The marking device comprises a mobile bottom plate and also comprises a stirring mechanism and a double-side marking mechanism. The bottom of the mobile bottom plate is provided with four swivel wheels; the stirring mechanism comprises a supporting platform and a stirring tank; the stirring tank is fixedly connected to the top of the supporting platform through a second support frame; the top of the stirring tank is provided with a feeding pipe; the bottom of the stirring tank is providedwith a material guiding pipe; the double-side marking mechanism comprises a synchronous driving assembly, two telescopic assemblies and two lifting and marking assemblies; each of the lifting assemblies comprises a spraying pipe capable of lifting and lowering; working ends of the spraying pipes are arranged downwards; and the inner ends of the spraying pipes are separately and fixedly connectedto the material guiding pipe through guiding hoses. The marking device for road paving can simultaneously perform marking on two sides of a road, and perform adjustment according to the width of the road. Through the cooperation with stirring, the marking device can prevent powder from knotting and improve the clarity of markings.

In the process of breeding snakes, individual households frequently meet the problems that the snake is difficulty to delivery and lays few eggs. The invention discloses a method for improving the survival rate of the snakes and hatching success rate of the snake eggs by timely oxytocin for the female snake with eggs and scientific management. The method is good for the growth and maintenance of the snakes in pregnancy, improves the success rate of the propagation of the female snakes and the snake egg incubation, improves the artificial breeding technology of the snakes, and realizes the industrial aquaculture of the snakes.

The invention relates to the technical field of fluidized decomposition and calcination of gypsum, and particularly discloses a process for producing sulfuric acid by spraying, fluidizing, decomposing and calcining gypsum efficiently. The process comprises the following steps: gasifying brimstone; preheating raw gypsum; spraying, fluidizing and decomposing gypsum to prepare calcium sulfide and sulfur dioxide; preparing sulfur dioxide by calcining and decomposing the prepared calcium sulfide and heated gypsum; preparing sulfuric acid by treating the tail gas. Through the adoption of spraying and fluidizing technology, out-kiln decomposition of gypsum during acid making is realized; the calcium sulfide can be prepared efficiently with low cost; then the calcium sulfide and the preheated gypsum are calcined together for decomposition to prepare the sulfur dioxide. Therefore, the process is absolutely an excellent process for industrialized continuous production, is high in economic benefits and energy utilization ratio.

The invention provides preparation equipment for producing a chemical divinylbenzene catalyst, relates to the field of preparation of chemical catalysts, and solves the problems that sampling work under different liquid level states cannot be achieved at the same time, samples are inconvenient to carry and move after being sampled, a filter screen of a liquid discharge pipe needs to be detached and cleaned during cleaning, quick cleaning on the basis of no detachment cannot be realized, synchronous reverse stirring and mixing of a plurality of stirring shafts and linkage work of two stirring structures cannot be realized. The preparation equipment for producing the chemical divinyl benzene catalyst comprises a cylinder body, and the cylinder body is filled with liquid. A sliding rod and anelastic piece jointly form an elastic reset structure of a mixing plate; the length of a poke rod is greater than the distance between a rotating shaft and the mixing plate, and when the rotating shaft drives the poke rod to rotate, the mixing plate is in an up-and-down reciprocating motion state under the poke action of the poke rod, so that auxiliary mixing can be realized.

The invention provides a suture anchor assembly. The suture anchor assembly comprises an anchor sleeve and a clamping part, wherein the anchor sleeve is provided with an axial hole and an external thread and implanted into a human body; the clamping part is at least partially arranged in the axial hole and provided with multiple chucks, and gaps are formed among two or more chucks and used for placing sutures, wherein at least part of the wall of the axial hole is in interference fit with the clamping part when the clamping part extends into the anchor sleeve, and the gaps among the multiple chucks shrink to clamp the sutures in the gaps. In the technical scheme, the two ends of the sutures are clamped into a pressurizing device at the same time, it is avoided that since pulling is too tight, the sutures are cut and damaged by the external thread of the anchor sleeve, and knotting is not needed; in addition, by adjusting the implanting depth of the anchor sleeve, the tensile force of the sutures can be adjusted, the sutures are prevented from being too loose or too tight, operation difficulty is lowered, and the efficiency and safety of an operation are promoted.

The invention discloses a printing and dyeing cloth anti-wrinkling rapid drying device. The printing and dyeing cloth anti-wrinkling rapid drying device comprises a rack, a drying box, a cloth inlet device, a cloth outlet device, a drying fan, heating bars, a cloth guiding roller and a heat dissipation fan. The drying box is arranged at the upper end of the rack, the drying box is detachably connected with the rack, and the cloth inlet device is arranged on the left side of the drying box. The drying box is provided with the cloth inlet device, the cloth outlet device and the roller, so that cloth is kept flat in the drying process; the drying fan and the heating bars are arranged in the drying box and dry the cloth together, the drying efficiency is improved, and time is saved; through the arrangement of a water extrusion device, water in the cloth is extruded out, and the time needed for drying is shortened; and through the arrangement of the heat dissipation fan, heat dissipation isconducted on the dried cloth, and the cloth is protected. Compared with the traditional technology, wrinkling and knotting of the cloth in the drying process can be prevented, the drying efficiency is improved, and the quality of the dried cloth is improved.