802results about How to "Avoid entanglement" patented technology

An implant insertion system includes a shape memory implant movable between a first shape a second shape and an implant insertion device movable between an implant disengagement position and an implant engagement position. The implant insertion device receives the shape memory implant in its first shape while in its implant disengagement position. Movement of the implant insertion device from its implant disengagement position to its implant engagement position manipulates the shape memory implant from its first shape to its second shape. The implant insertion device maintains the shape memory implant in its second shape until delivery of the shape memory implant into tissue or bone.

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.

Provided is an automatic floor cleaning device for domestic use. The automatic floor cleaning device is provided with a shell body, a detection control system is arranged in the shell body, an advancing mechanism and a cleaning mechanism are arranged at the bottom of the shell body, the detection control system controls the advancing mechanism and the cleaning mechanism to clean the floor, the advancing mechanism is composed of a driving wheel and two universal wheels, and the driving wheel and the two universal wheels are arranged in the shape of a Chinese character 'pin', and are driven to walk by a power mechanism. The cleaning effect is good, and waste gas is utilized to achieve the flushing, water spraying and drying function through an air pump without increasing a power source.

The invention discloses a rolling brush of a dust collector. The rolling brush is characterized by comprising a rolling shaft, a baffle, a transmission column, a blade and a rolling brush strip, wherein the rolling shaft is arranged at the air inlet of the rolling brush; the baffle and the transmission column are rotatably fixed at the two ends of the rolling shaft; the transmission column and a rolling brush driving device are in transmission connection with each other; the blade is fixedly connected with the rolling shaft and arranged between the baffle and the transmission column; and the rolling brush strip is arranged between the baffle and the transmission column and can be used for realizing the linkage of the baffle and the transmission column. In the brush head structure of the rolling brush disclosed by the invention, the long thin garbage wound on the rolling brush is cut off by the blade so as to prevent hair and the like from being wound on the rolling brush, realize a smoother cleaning process and improve the user satisfaction; and moreover, the suspended rolling brush strip can be used for increasing the striking force against the ground during rotation, and the cleaning power of the rolling brush against deep garbage is improved. Furthermore, as bristles are fragile components and the rolling shaft is a durable product, the bristles or cleaning cloth are fixed on the rolling brush strip so that the bristles or cleaning cloth can be simply replaced and the product use cost is reduced.

The invention provides a double L-shaped cubic modularized self-reconstructing robot based on rotational hook hole connection, which relates to a robot. The present invention aims at solving the problems that the existing array-typed robot is not flexible enough in motion and the robot after being assembled can not efficiently move, as well as the problems of large volume, heavy weight and large heat productivity, and the like, in an electromagnetic connecting mechanism. The present invention is characterized in that a first drive connecting module is fixedly connected with a second drive connecting module; a third drive connecting module is fixedly connected with a fourth drive connecting module; a first driven connecting module is fixedly connected with a second driven connecting module; a third driven connecting module is fixedly connected with a fourth driven connecting module. The present invention has the self-reconstructing function of local modules of the array-typed system and the motional function of integrated configuration of a tandem-typed system. The load/deadweight rate of the module is 4.5:1 and the drive module or the driven module can be exchanged automatically. The mechanism does not need to maintain the energy in the connecting state and the disconnecting state, thus saving the energy.

The invention relates to a loose metal litter briquetting machine. A vertical main cylinder is arranged at the top of a stand, a piston of the main cylinder is connected with a punch in up-and-down reciprocating motion in a final pressure swaging bucket, a soleplate for sealing the bucket bottom is arranged at the bottom of the swaging bucket and controlled by a horizontally arranged knife gate cylinder, the middle of the swaging bucket is horizontally provided with a pushing cabin which is in sealed connection and vertical intersection with the swaging bucket; the tail end of the pushing cabin is provided with a pushing head connected with a piston of a pushing cylinder piston, the pushing cabin is provided with an open side which is communicated with the bottom of a feeding hopper, a precompression pushing head is arranged at the other side of the bottom of the feeding hopper and connected with a piston of a precompression cylinder. The precompression cylinder, the pushing cylinder and the main cylinder provided by the invention respectively extrude materials in the three directions of the X axis, the Y axis and the Z axis to effectively improve the compression efficiency of the materials and finally obtain high-density litter cakes while cutting coiled wires and separating litter liquid and have high degree of automation and good economic benefits.

The present invention 10 discloses a pair of end heads 28, 30 that are interconnected onto the inwardly disposed tube assembly 26 to form the pool cover 12 storage reel. Hand wheels 32 are rotationally attached to tube assembly 26 by end tubes 36 on the outside of the end heads 28, 30. Each of the end heads 28, 30 includes a pair of casters 40 mounted to the bottom surface of the end head. The tube assembly 26 consists of five components, a center tube 34, two outer tubes 36 and two end caps 42. The center tube is of larger diameter and allows for the two outer tubes to be telescopically inserted into the opposing distal ends. The cylindrically shaped tubes include mating male 48 and female 46 extrusions along the surfaces to ensure joint rotational movement of the tube assembly. The telescoping tubes 26 include a series of holes 38 along the surface creating cavities and providing convenient and efficient means to store the straps, springs or other anchoring means that are positioned around the perimeter of the covering.

The invention relates to a variable-diameter hydraulic cutter capable of realizing continuous cutting of sleevings with different diameters through gear and rack transmission in the abandoned well operation process. The technical scheme of the cutter is that an upper joint is connected with a housing by threads; a spraying nozzle is located in a piston push rod and connected with the push rod by the threads; an upper spring, a turning mechanism and a piston are mounted on the piston push rod sequentially and arranged inside the housing; cutter knives are arranged uniformly in the circumferential direction and connected with the housing by hinge pins, gear structures of the upper parts of the cutter knife bodies are meshed with a cylindrical rack, the rack and the gears can transmit, and too large displacement of the cutter knives is limited while the opening degrees of the cutter knives are accurately controlled. According to the variable-diameter hydraulic cutter, the piston and the turning mechanism are pushed by the throttling action, gear and rack transmission is matched so as to realize continuous cutting of the sleevings with different diameters, trip times are reduced, the abandoned well operation time is saved, and the sleeving cutting efficiency and the operation reliability in the abandoned well operation process are improved greatly.

The invention discloses an intelligentized mobile vehicle-mounted remote crop digital image acquisition system and a method thereof, belonging to the field of intelligentized agricultural machinery. The system consists of a client, a server and digital image acquisition and processing equipment. Under the action of a controller of the digital image acquisition and processing equipment, the digital image acquisition and processing equipment can freely move in horizontal and vertical directions and perform 360-degree omnibearing rotation, and accurately acquires a position image of a crop object, the image is decoded and compressed, then is transmitted to the server by a 3G wireless module, and is stored in a data processing module on a mainboard of the controller; or the acquired image is directly analyzed and processed by the controller. The intelligentized mobile vehicle-mounted remote crop digital image acquisition system is high in intelligentization degree, low in cost, good in equipment mobility and capable of accurately acquiring and wirelessly transmitting images of different parts of the crop in an omnibearing and multi-angle way, and provides a basis for analyzing crop growth information, plant disease and insect pest information and other information.

The invention discloses a middle and small unmanned aerial vehicle parachute landing device and a controlling method. The device comprises two discrete input 'choosing two out of three' circuits A and B, relay driving circuits A and B and relays A and B, all of which are connected by printed panel lines and respectively control the power supply of the engine and the explosive bolt; the method thereof determines three logic states of 'before open', safety 'pre-commanding' and 'open' and times 'effective time of safety pre-commanding' and 'parking time of engine'. The conversion of the logic states is determined by current test and control instructions, logic states and two timed values and thus controls the relays A and B. The unmanned aerial vehicle parachute landing device can prevent the parachute opening controlling signal from being disturbed so as to avoid accidental parachute opening; the method thereof carries out integrated control to the engine parking and the parachute opening, reduces the possibilities of the accidental parachute opening caused by the misoperation of an operator and the winding and cutting of a parachute rope by the propeller, thereby ensuring the safety and the reliability of the unmanned aerial vehicle parachute landing.

The invention discloses a servo real-time measuring device used for rotating blade full-field dynamic deformation. A binocular camera opposite to each blade is fixedly connected near the rotating center of the blade. A mark point is arranged on the blade. The blade and the binocular camera maintain to be relatively still circumferentially in the rotating process. The binocular camera is arranged in a sealing shell equipped with the glass window for effectively reducing the interference of rotating airflow. The blurred background interference caused by high speed rotation of the rotor wings isfiltered in advance for enhancing the image processing speed. The mark point is arranged by using the fluorescent light source material. The shell glass window is arranged as the band-pass light filter corresponding to the mark line fluorescent frequency. The binocular camera only obtains the image of the mark line. Real-time three-dimensional deformation is acquired through image acquisition anddata processing. The photoelectric counter is installed on the propeller hub, and the small laser generator is installed at the position face the machine body. Counting is triggered when the photoelectric counter rotates to the position of the laser generator in each rotating period to act as the zero phase position information of the measured blade.

The present invention relates to a washing machine, in particular to a surge washing machine and a surge washing method thereof, which is realized in a dual-power surge washing machine with ribs arranged on a wave wheel and the upper part of an internal barrel wall. The present invention is characterized in that in the process of washing or rinsing, the ribs are utilized to form a current in a certain direction and at the same time are ordered to rotate reversely to form a surge in the direction vertical with the current direction, which is repeated for several times; wherein, the movement of the wave wheel with a plurality of ribs forms a plurality of vertical axial surges and the ribs on the upper part of the internal barrel wall form radial surges in the upper current layer, so that the clothes repeatedly rush upwards, drop downwards and rotate due to the vertical axial surges and at the same time are washed by radial surges in the process of repeated rush, drop and rotation. The present invention has the advantages that the washing time is shortened from 1/2 to 2/3; in the washing process, no twist is formed and the knot of washed clothes can be unbuckled.

The massaging device in this invention comprises a massaging mechanism, arms 3, and carriers 300. The carrier 300 has a shaft 30 which is fixed to the arm 3. The shaft 30 holds the massaging head 2 which is rotatable relative to the shaft 30. The carrier 300 carries the heat source 4 therein, and has a disc extending toward the radial direction of the shaft 30. The carrier 300 or the massaging head 20 includes a heat transfer means extending radially of the shaft from the carrier to an outer circumferential surface of the massaging head 20. This configuration makes it possible to transfer the heat to the outer circumferential surface of the carrier 300 or the massaging head.

The invention relates to a wiring method for fibers for monitoring a composite cylinder. The method comprises the steps as follows: (1) clamping a cylinder liner on a main shaft of a numerically controlled winding machine; (2) arranging the fibers on the surface of the cylinder liner; (3) forming in a winding way and solidifying a composite layer of the cylinder; and (4) performing a water pressure self-tightening test. According to the structural characteristics of the columnar composite cylinder, a winding geometric planning programming method of a geodesic line or a non-geodesic line of the composite cylinder is simulated, a geodesic line or a non-geodesic line fiber wiring method with the wiring direction changed gradually is adopted firstly, gradual change track wiring of the fibers for measuring stress, strain and temperature in any angle and direction is implemented, the fiber damage failure resulting from the relatively large stress difference between a winding layer fiber and a fiber is avoided in the winding forming process of the cylinder, the solidifying process of the cylinder and the water pressure test process after an optical fiber sensor is implanted, and the survival rate of the fibers implanting in a cylinder layer is greatly increased.

The invention discloses a flexible driver with controllable damping and used for a robot joint. The existing flexible driver is lag in drive response, and uncontrollable in flexibility. The inner ringof a hollow rotary platform of the flexible driver disclosed by the invention is driven by an external force, and drives an electric brush rotor and an output disc to rotate; an inner rotary disc comprises a disc body and a central stud; the inner ring of a planar torsional spring is fixed to an output disc, and the outer ring of the planar torsional spring is fixed to a cross support frame and the disc body; an outer rotary disc is born on the central stud, and compressed with an end surface opposite to the disc body, and a compression force is adjusted by an adjustment device; 2-4 grooves are formed in a part close to the edge, of the disc body; a magnetorheological fluid is injected into each groove; two fluid through holes are formed in the bottom of each groove, and the outer ends ofthe two fluid through holes are communicated by a pipeline; each pipeline is wound with a coil; and cylindrical bodies as many as the grooves are arranged on the inner end surface of the outer rotarydisc, and each cylindrical body is embedded in the corresponding groove and divides the groove into two cavities. The flexibility of the flexible driver disclosed by the invention is effectively improved, and a controllable movement flexibility degree is achieved.

The invention relates to a plug board with a function of automatic locking and a shrinkage vertical-type plug board set therewith. The plug board comprises a circular jack on the plug board and a brush in the jack. The interior of the plug board is provided with a locking device for locking an electric plug. The locking device comprises an eccentric locking part which is disposed below the jack and used for locking the plug. The shape of the eccentric locking part is divided into three parts: a plugging part, a connecting part, and a locking part. The bigger the rotation angle of the eccentric locking part is, the bigger the clamping force is, thereby preventing the decrease of the elasticity of an electric connection piece and the decrease of a clamping force from causing the loosening of the plug after long-time repeated plugging and from causing poor contact. The shrinkage vertical-type plug board set provided by the invention comprises at least two plug boards with the function of automatic locking, and a pedestal for supporting the plug boards is disposed between the plug boards. A connecting rod is disposed between the pedestal and the plug boards and pulls the plug boards to move, thereby enabling the plug boards to be unfolded and folded, and effectively preventing wires from being messed up.

A vacuum cleaner nozzle with a brushroll and a vacuum appliance comprising the vacuum cleaner nozzle. The vacuum cleaner nozzle (10) is characterized by: a body (11) having a wind passage portion and a hollow portion; a brushroll component (12), comprising a roller portion, a conveyance belt (32), and a plurality of bristle units; a hair scraping member (76), located inside the hollow portion; and a driving member (13), where the roller portion at least has a front roller (30a) and a rear roller (30b), the front roller (30a) is provided above a dust suction opening, the rear roller (30b) is provided near the wind passage portion, the hair scraping member (76) has at least one scraper (72), and an end of the scraper (72) is provided near the rear roller (30b) and extends between two adjacent bristle units in an axial direction of the roller portion. When the brushroll component (12) rotates at a high speed, the hair scraping member can scrape hair off bristles (33), so that hair that drops in a dust suction air flow passes through the wind passage portion is sucked into a dust collection apparatus instead of being wound around the brushroll component or tangled between adjacent bristles (33).

The invention relates to an automatic rope-collecting-type net surface management hasp device, and belongs to the technical field of satellite antenna structures. The automatic rope-collecting-type net surface management hasp device is mainly used for resolving the problem of hooking and winding of an annular net-shaped deployable antenna net surface system, and comprises a rope-winding wheel, an outer end rotary-type volute spiral spring, a connection shaft, an end cap, a bearing, a shaft sleeve, an upper covering plate, a lower covering plate and a cable net connecting ring, and peripheral equipment comprises a tension array and a rear tension cable net. The automatic rope-collecting-type net surface management hasp device guarantees orderly unfolding of a net surface when an antenna reflector is unfolded, and the whole operation process is simple. Meanwhile, by combing the forming characteristics of a cable net, net surface management and a cable net forming function are integrally designed. The automatic rope-collecting-type net surface management hasp device can be applied to unfolding tests of various annular deployable antennas, and has broad application prospects.

The invention relates to a method for operating a spinning machine, the spinning machine comprising a plurality of spinning units (3), fibrous composite (13) is transmitted to at least a portion of the spinning units (3) during a spinning process, in a present spinning station (4) of each spinning unit (3), rotation motion is transmitted to the fibrous composite (13), and therefore fibrous composite (13) turns into rotary yarn (7), the yarn (7) is taken off from the respective spinning station (4) through an outlet (6) and is wound up by a winding device (8), the spinning machine is supplied with power by an external power supply (10). The method is characterized in that the the yarn production in the spinning units (3) for producing the yarn (7) is stopped in case of failure or malfunction of the external power supply (10), so that a winding side yarn end is formed in the area of each spinning unit (3), each winding side yarn end is in the respective spinning station (4) or between the outlet (6) of this spinning station (4) and the winding device (8) associated with the spinning station (4), wherein the energy to for the further operation of the spinning machine until the end of yarn production is provided by at least one energy store (9). Furthermore, the invention also relates to a spinning machine which has a controller (11) which is designed to operate the spinning machine according to the above method.

The invention relates to an automatic assembling mechanism for a socket protection door. The automatic assembling mechanism for the socket protection door comprises a protection door feeding unit, an automatic assembling unit, a pushing unit and a manipulator installation unit. The socket protection door to be assembled is fed through the protection door feeding unit and is pushed to the automatic assembling unit for assembling through the pushing unit. The assembled socket protection door is pushed to the manipulator installation unit through the pushing unit. The protection door feeding unit comprises a protection door linear conveying unit and a protection door separation unit. The socket protection door to be assembled sequentially passes through the protection door linear conveying unit and the protection door separation unit. The protection door separation unit comprises a first pushrod. The automatic assembling unit comprises a spring feeding pipe and a spring sliding rod. The spring sliding rod is movably connected with the spring feeding pipe. The manipulator installation unit comprises an ejection component, a pneumatic clamp component and a manipulator. The ejection component and the pneumatic clamp component are arranged at the lower end of the manipulator. By adopting the structure, the automatic assembling mechanism for the socket protection door has the advantages that the structure is simple, the production efficiency is high and the automatic processing can be realized.

The invention discloses a torque measuring shaft and a torque measuring method, which belong to the field of torque measuring tools, and solve the problems that the existing torque measuring device cannot feed back measured data in real time and errors exist in the measured data. The torque measuring shaft comprises a driving shaft and a shell body, wherein the driving shaft comprises a torque measuring section, the shell body coats the torque measuring section, a gap is formed between the shell body and the outer wall of the torque measuring section, and an electronic assembly is arranged inside the shell body; the electronic assembly comprises a battery, a strain gage, a power supply module, an analog-to-digital conversion module, a display screen module and a microprocessor module; the strain gage is arranged on the outer wall of the torque measuring section; the battery is in bidirectional connection with the power supply module; the power supply module is connected with the strain gage; the strain gage is connected with the analog-to-digital conversion module; the analog-to-digital conversion module is connected with the power supply module and the microprocessor module; and the microprocessor module is in bidirectional connection with the power supply module and in unidirectional connection with the display screen module. The torque measuring shaft can feed back measured data in real time, is accurate in measurement and has long service life.

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 discloses a general aviation photography device comprising a connecting board; a bottom of the connecting board is rotationally connected with a suspender through a bearing; the surfaceof the suspender is connected to an electric telescopic rod through a first rotating shaft; the bottom of the suspender is connected to a bottom plate by a second rotating shaft; a pick-up head is fixedly connected to a bottom of the bottom plate; the electric telescopic rod is rotatably connected to the bottom plate through a third rotating shaft; a tilt sensor is fixedly connected to the right side of the top of the bottom plate; a searchlight is fixedly mounted on the surface of the bottom plate and on the left side of the pick-up head; a bottom of the connecting plate is connected with a fixing plate through a connecting rod. The invention solves the problem that the existing photographing device can not automatically adjust the photographing angle, does not have the lightening function and the photographing effect is poor through the cooperation of the electric telescopic rod, the pick-up head, the tilt sensor, the searchlight, the motor, the angle sensor, the battery, the controlbox, the memory and the wireless module.

The invention belongs to the technical field of medical trachea cannulas, and particularly relates to a multifunctional double-bag trachea cannula which comprises a tube body, an inner inflation bag and an outer inflation bag. One end of the tube body is a patient end, and the other end of the tube body is a machine end. The side wall of the patient end is provided with an arc-shaped side vent hole indented towards the tube body. The inner inflation bag is formed by connecting a plurality of adjacent concave parts and protruding parts. The outer inflating bag comprises an outwards-protruding first gas bag section, an outwards-protruding second gas bag section, and an arc-shaped connecting section located between and connected with the first gas bag section and the second gas bag section. A flushing and medicine outlet is formed in the portion, above the outer inflation bag, of the tube body. The portions, extending out of the tube body, of an infusion medicine catheter, an outer inflation bag infusion gas catheter and an inner inflation bag infusion gas catheter are fixedly connected side by side. The multifunctional double-bag trachea cannula has the advantages that multi-hole medicine spraying is achieved, tracheal mucosa is not pressed, the blood circulation state is good, glottis is not prone to damage, oxygen supply and sputum aspiration are smooth, and pains of a patient are relieved.

The invention relates to a fiber bundle dividing and washing method and a fiber bundle dividing and washing device. The method comprises the following steps of: 1) arranging a plurality of groups of fiber dividing and washing units and a fiber output unit on a frame, wherein each unit is provided with a running rotating crawler; 2) passing a feeding roller through a crawler input end of each fiber dividing and washing unit so as to convey the fiber bundle forward, making the fiber bundle enter a fiber dividing and washing area which is provided with a beater and a fiber dividing roller at intervals, simultaneously opening a high pressure water pipe which is arranged above the beater and the fiber dividing roller, and performing washing soaking, beating, carding and fiber dividing on the fiber bundle edges; 3) feeding the fiber treated by the previous fiber dividing and washing unit to the next fiber dividing and washing unit for continuous fiber dividing and washing; and 4) feeding the fiber treated by the last fiber dividing and washing unit into a fiber dividing input area, performing water squeezing operation through a squeezing roll, feeding the fiber into a cloth arrangement mechanism, arranging and folding the strip-shaped fiber through the cloth arrangement mechanism, and feeding the fiber into a fiber storage box. The fiber bundle dividing and washing method and the fiber bundle dividing and washing device can be widely applied to fiber dividing and washing treatment for various bast fibers, leaf fibers, and grass family fibers.

The invention discloses an indoor floor heating construction method. The indoor floor heating construction method comprises the following steps: (a) preparing for construction; (b) cleaning floor; (c) laying a base layer; (d) laying heating pipes; (e) mounting a water distributor and a water collector; (f) constructing a filling layer; (g) performing a water pressure test. According to the indoor floor heating construction method, the quality of clamping blocks can be checked to improve the construction of the clamping blocks; when the clamping blocks are spliced, the clamping blocks are fixed to steel wire mesh pieces by using iron wires; the steel wire mesh pieces are spliced into a whole body in advance, so that the clamping blocks are stably fixed to the steel wire mesh pieces, the heating pipes can be laid smoothly, and the heating pipes are prevented from winding with one another; therefore, the heating pipes are laid orderly; reworking phenomena are reduced; the heating pipe pavement efficiency is improved; four sections of inner layer heating pipes are arranged between outer layer heating pipes at two ends; the heating pipe pavement area is increased; the temperature on the floor is increased uniformly after the construction of a floor heating system.

The invention provides universal robot joints and a robot arm. The universal robot joints can be connected in series and/or in parallel through a first interface terminal and a second interface terminal which are arranged on each joint in a unified carrying mode, and a multi-freedom-degree robot system is combined conveniently. Through the design of a force transmission shaft, the same rotating shaft of electrical signals and synchronous rotation, a user only needs to conduct inserting and connecting operation, then physical connection can be completed, and meanwhile, circuit connection is also completed; using is convenient, and meanwhile, the situation that a signal line and a power line are wound caused by rotating of the robot arm is also avoided; each universal joint has an independent bus address and an independent motor servo control system; compared with an external motor control system of a traditional controller, the number of external connection lines of the joints is reduced through the structure of buses, high-frequency noise outside the joints is lowered, problems of corresponding bus nodes are found conveniently and quickly, modularized replacement is conducted, and networked control and management are convenient.

Provided is a wing knob adjusting device for an air vent, including a housing mounted with an air discharge part, a front wing mounted in the air discharge part, a rear wing mounted in front of the front wing, and an actuator vertically rotating the front wing or the horizontally rotating the rear wing, wherein the actuator includes fixing members mounted at top and bottom portions of the air discharge part, respectively, a knob link of which the top portion may be upwardly inserted into the fixing member, the bottom portion may be vertically coupled rotatably with the front wing, and the center may be horizontally coupled rotatably with the rear wing, an actuating knob slidably mounted in the rear wing to rotate the knob link vertically or horizontally, and a connecting rod connecting the knob link with the actuating knob so as to interconnect them.

A system and method which provides a means to install a hurricane shutter panel in a manner which enables release of the panel from the inside of the structure, thus providing means of egress through the opening on which the panel is installed. There are four preferred embodiments of the invention to correspond with the four primary means for installing hurricane shutter panels; namely angle track, F-Track, direct mount systems using wall anchors and direct mount systems using direct mount studs permanently mounted into a structure. The various embodiments require little or no modifications to the components of the various industry standard installation systems. The invention can be used with new installations or adapted to existing installations.

The invention discloses an arterial embolectomy catheter which comprises an arterial embolectomy head, an embolism breaking knife, a transmission cable, a partition tube, an outer sheathing canal anda tail connecting piece, wherein the arterial embolectomy head is of a tubular hollow structure with at least one arterial embolectomy hole; the embolism breaking knife is of a tubular hollow structure with at least one blade point; the embolism breaking knife is installed inside the arterial embolectomy head; the embolism breaking knife is fixedly connected with the far end of the transmission cable; the near end of the arterial embolectomy head is fixedly connected with the far end of the outer sheathing canal; the near end of the outer sheathing canal is fixedly connected with the tail connecting piece; the partition tube is arranged outside the transmission cable in a sleeving manner; the near end of the partition tube is fixedly connected with the tail connecting piece; the embolism breaking knife is arranged outside the partition tube in a sleeving manner; a side hole is formed in the tail connecting piece; and the side hole is communicated with a cavity formed between the partition tube and the outer sheathing canal. According to the arterial embolectomy catheter provided by the invention, the partition tube is arranged outside the transmission cable, and the thrombus is prevented from winding with the transmission cable; and rapid and continuous arterial embolectomy is realized.