37results about How to "Safe to retract" patented technology

A retrieval apparatus for entrapping and retaining an object located in a body for its extraction therefrom is described. The retrieval apparatus includes a snare and a snare control assembly. The snare has a proximal section and a distal section, and comprises a plurality of filaments extending from a proximal end of the proximal section towards the distal section, and then returning to the proximal end to form a plurality of loops. In the deployed state, the loops are interlaced to each other within the proximal section and are free and not interleaved within the distal section. Segments of the filaments of the distal section are bent with respect to segments of the filaments of the proximal section such that the retrieval snare in the contracted state forms a hollow cavity extending from the distal section towards the proximal section.

A retrieval apparatus for entrapping and retaining an object located in a body for its extraction therefrom is described. The retrieval apparatus includes a snare and a snare control assembly. The snare has a proximal section and a distal section, and comprises a plurality of filaments extending from a proximal end of the proximal section towards the distal section, and then returning to the proximal end to form a plurality of loops. In the deployed state, the loops are interlaced to each other within the proximal section and are free and not interleaved within the distal section. Segments of the filaments of the distal section are bent with respect to segments of the filaments of the proximal section such that the retrieval snare in the contracted, state forms a hollow cavity extending from die distal section towards the proximal section.

The present invention provides a magnetic disk storage system including a spindle motor that rotates a magnetic disk, a spindle motor drive circuit that rotatably drives the spindle motor, a magnetic head that performs reading of information on the magnetic disk, a voice coil motor that moves the magnetic head, and a voice coil motor drive circuit that drives the voice coil motor. When the magnetic head is loaded from a standby position to the surface of the magnetic disk, the rotational speed of the spindle motor is made slower than a rotational speed at a normal operation. Upon power-off, the spindle motor drive circuit is caused to carry out a stepup converter operation to thereby generate a voltage higher than a back electromotive voltage, and causes a control circuit and a drive circuit to operate by the high voltage to thereby enable speed control at the movement of the magnetic head to a predetermined standby position.

A retrieval apparatus for entrapping and retaining an object located in a body for its extraction therefrom is described. The retrieval apparatus includes a snare and a snare control assembly. The snare has a proximal section and a distal section, and comprises a plurality of filaments extending from a proximal end of the proximal section towards the distal section, and then returning to the proximal end to form a plurality of loops. In the deployed state, the loops are interlaced to each other within the proximal section and are free and not interleaved within the distal section. Segments of the filaments of the distal section are bent with respect to segments of the filaments of the proximal section such that the retrieval snare in the contracted, state forms a hollow cavity extending from die distal section towards the proximal section.

The invention discloses a retractable captive flight support for external hanging equipment, which is arranged at a central cap of a base plate of an aircraft cabin and comprises a fixed guide framework, a movable frame, a movable pull rod, movable pulleys, a rocker arm mechanism, a cover plate and a butt-joint frame plate, wherein the fixed guide framework is connected with the base plate of the aircraft cabin and connected with the movable frame through a concave guide rail, the lower end of the movable pull rod is mounted on the movable frame, the upper end thereof is connected with a pull rod fixing seat arranged at the front end of the cabin cap through a positioning pin, the pull rod fixing seat is fixed on the base plate of the aircraft cabin, the lower frame of the movable frame is welded with the butt-joint frame plate, the movable pulleys are respectively arranged at the right and left ends of the movable frame, and the rocker arm mechanism is arranged at one side of the fixed guide framework through a fixing seat. The retractable captive flight support of the invention has the advantages of good generality, secure folding and unfolding, ability of independently completing captive flight experiments of various guiding heads without developing special equipment, safety and convenience, short and simple experiment organization cycle and greatly-reduced experiment cost.

A shieldable winged needle assembly includes a hub and a cannula projecting distally beyond the hub. A spring is telescoped over the cannula and engages with or into distal portions of the hub. A hub guide projects radially out from the hub. A first wing includes a center sleeve rotationally mounted on the hub and axially movable along the hub when a slot formed in the center sleeve aligns with the hub guide. A second wing has proximal and distal sleeves mounted at opposite ends of the center sleeve. The proximal and distal sleeves each are rotationally mounted relative to the hub and each include slots that enable sliding movement of the hub guide when the slots of the second wing align with the slot of the first wing. The spring propels the cannula and hub into a shielding position when the slots of the wings are rotated into alignment with one another.

The present invention provides a magnetic disk storage system including a spindle motor that rotates a magnetic disk, a spindle motor drive circuit that rotatably drives the spindle motor, a magnetic head that performs reading of information on the magnetic disk, a voice coil motor that moves the magnetic head, and a voice coil motor drive circuit that drives the voice coil motor. When the magnetic head is loaded from a standby position to the surface of the magnetic disk, the rotational speed of the spindle motor is made slower than a rotational speed at a normal operation. Upon power-off, the spindle motor drive circuit is caused to carry out a stepup converter operation to thereby generate a voltage higher than a back electromotive voltage, and causes a control circuit and a drive circuit to operate by the high voltage to thereby enable speed control at the movement of the magnetic head to a predetermined standby position.

The invention discloses a power equipment cabinet. The power equipment cabinet comprises a cabinet body that is hinged with a cabinet door by a set of hinges. Both sides of the cabinet body are provided with installation tables cooperating with a multi-stage fuel tank that is disposed in a pit. The upper part of the cabinet body is provided with a set of damping springs of which the upper parts are all connected with an upper cover plate. The lower parts of the two sides of the upper cover plate are provided with optical sensors. The upper part of the cabinet body is provided with a remote control signal receiver, the interior of the cabinet body is provided with a set of installation boards, and the back part of the cabinet body is provided with a wire protection shell. The pit is hinged to a push door by a set of pins and the door is adapted to the wire protection shell. According to the actual need of use, the power equipment cabinet can be conveniently retracted under the ground and extended above the ground with the function of shock absorption, and the use is safe and the operation is simple.

A laser fiber, is modified to have a tip that has a length that is predetermined to ensure that the tip remains viable throughout a given procedure type, despite the presence of burn-back. The extended tip is defined by stripping back the jacket of the laser fiber over the pre-determined length starting at the distal end of the fiber. The stripped portion of the fiber is then dip-coated with a layer of polymeric coating such as an acrylate. A visual indicator can be printed onto the extended tip to aid in the use of the extended fiber. A self-aligning stability sheath is provided to make insertion easier in certain types of endoscopes. The laser fiber with extended tip can be pre-inserted into the sheath and sold as a pre-prepared kit for ease of use and protection of the fiber.

An injection device, which comprises a nozzle and which is used for an underground coal gasification process; the nozzle and the injection device are used for continuously injecting a high-concentration oxidant into an underground coal layer during the underground coal gasification process, in which case the high-concentration oxidant may be used safely and steadily to obtain a high-quality and stable product gas, while a retraction cycle and / or a retraction distance of a retraction method in the existing technology may be greatly shortened, thus achieving the continuous and steady operation of the underground coal gasification process. Also disclosed is a method for operating the injection device.

The invention provides a compass with a telescopic fixed needle. The compass is characterized in that a fixed needle supporting leg is of a hollow structure, one side of the fixed needle supporting leg is provided with a strip-shaped groove, an adjusting sliding handle which is connected to the upper part of the fixed needle is positioned in the strip-shaped groove, and a rotating cap which is used for adjusting the fixed needle to stretch and contract and fixing the fixed needle is arranged under the fixed needle supporting leg. When the compass provided by the invention is in use, the fixed needle can be adjusted to stretch out and contract in the fixed needle supporting leg through the loosening and the fastening of the rotating cap, thus the fixed needle can stretch out when the compass is in use, the fixed needle can contract in the fixed needle supporting leg when the compass is folded, a phenomenon of puncturing a finger can be prevented, and the compass is facilitated to be safely and reliably folded.

The invention provides a rotator towfish retracting / releasing device. The rotator towfish retracting / releasing device comprises a mounting base on which a plurality of upright columns are arranged; the rotator towfish retracting / releasing device is characterized in that guide rails are arranged on the top ends of the plurality of upright columns, a trolley is mounted on the guide rails and is capable of moving along the guide rails, a traveling hanging bracket is mounted on the trolley, and an anti-vibration pulley block and a circular-arc-shaped guide plate are arranged on the traveling hanging bracket; a storage rack is arranged on the mounting base; oscillating arm mechanisms are arranged on the two sides of the storage rack to form a slider-crank mechanism; during working, the oscillating arms are capable of oscillating out of the mounting base or within the mounting base along with the traveling hanging bracket in a linkage manner; the rotator towfish retracting / releasing device is further provided with a retracting / releasing winch; a towrope on the retracting / releasing winch bypasses the anti-vibration pulley block of the traveling hanging bracket and is connected with the rotator towfish. By adopting the structure and mechanisms, the traveling hanging bracket, the oscillating arm mechanisms, a stern line, the towrope, the storage rack and the retracting / releasing winch act together, the rotator towfish retracting / releasing device can complete the actions such as towfish retracting (releasing), towing, emerging out of water, centralizing, reversing and storing, and capable of smoothly realizing the towfish retracting / releasing, towing and storing functions.

The invention provides a ship capable of quickly and safely retracting and deploying a child ship. The ship comprises a mother ship and the child ship, wherein slideways and a main hanging rod are arranged on the mother ship; the slideways are positioned at the tail part of a cabin of the mother ship; the main hanging rod is positioned in the middle of the mother ship; the slideways are used for placing the child ship; the length extension directions of the slideways are intersected with the length extension direction of the main hanging rod; the included angle of the length extension direction of the slideways and the horizontal base line is 30-60 degrees; a slideway surface is arranged at the bottoms of the slideways; the slideways and the slideway surface are parallel; a first T-shaped material supporting rack is arranged at the bottom of the slideway surface in the longitudinal direction of the slideway surface; openings at the tail end of the slideways are reversed round angles; a pulley block is arranged on the main hanging rod, and comprises hanging hooks.

A fastener structure for pliers contains: a first connecting arm, a second connecting arm, and a slidable fastener. The first connecting arm is rotatably connected with the second connecting arm to form a griping segment and a working segment and includes a holder which has two guiding rails. The first connecting arm also includes a first notch and a second notch, and the second connecting arm includes a locking seat. The slidable fastener is hollow and retains with the holder, and the slidable fastener includes two guide posts, a positioning plate, and an elastic locker mounted on the positioning plate to alternatively retain with the first notch or the second notch, such that when the elastic locker retains with the first notch, the positioning plate limits the locking seat, and when the elastic locker retains with the second notch, the positioning plate releases the locking seat.

The invention relates to a capturing rod structure. The capturing rod structure comprises two square tuber support tubes of which two sides are connected with a bracket body, the middle parts of the two support tubes are separated, and are connected through an outside connecting rod; square axial rods are respectively inserted into the opposite ends of the two support tubes, and the axial rods and the support tubes form a nested structure; first cushion pads are stuffed between the axial rods and the support rods; the end parts of the two axial rods extend out from the opposite end parts of the support tubes, and the extending end parts are respectively and fixedly connected with two opposite lug plates; one ends of the two opposite lug plates are respectively and fixedly connected with the axial rods, and the other ends of the lug plates are provided with opposite slotted holes; a hooking and hanging rod is arranged at the middle parts of the two slotted holes, and after the two ends of the hooking and hanging rod penetrate through the opposite slotted holes, mounting fasteners are limited, and second cushion pads are arranged between the hooking and hanging rod and the lug plates at two ends, and are arranged along the extension directions of the lug plates; one ends of the second cushion pads are fixed to the lug plates, and the other ends penetrate through the hooking and handing rod.

A fastener structure for pliers contains: a first connecting arm, a second connecting arm, and a slidable fastener. The first connecting arm is rotatably connected with the second connecting arm to form a griping segment and a working segment and includes a holder which has two guiding rails. The first connecting arm also includes a first notch and a second notch, and the second connecting arm includes a locking seat. The slidable fastener is hollow and retains with the holder, and the slidable fastener includes two guide posts, a positioning plate, and an elastic locker mounted on the positioning plate to alternatively retain with the first notch or the second notch, such that when the elastic locker retains with the first notch, the positioning plate limits the locking seat, and when the elastic locker retains with the second notch, the positioning plate releases the locking seat.

The invention relates to a fuel platform maintenance docking device and a docking device control system, an automatic controller starts a hydraulic pump set to provide power for a lifting hydraulic cylinder (30) and a telescopic hydraulic cylinder (20), and the lifting height and speed and the telescopic length and speed are controlled by controlling a lifting proportional control valve and a telescopic proportional control valve. The docking device is changed from a storage side hanging state to a position state that a pit wall (10) rises around the rotating shaft to be flush with the plant ground and a test platform (11); a telescopic sliding plate (22) is pushed by the telescopic hydraulic cylinder (20) and stretches out at a certain speed to be in butt joint with the test platform (11), a hydraulic station stops working after butt joint is completed, and a lifting hydraulic cylinder (30) and the telescopic hydraulic cylinder (20) are locked by a hydraulic balance valve at the sametime. The butt joint device and control system have the beneficial effects that the butt joint device is convenient and safe to fold and unfold, a control system is intelligent, convenient and practical, and the butt joint device is suitable for occasions where passing is needed, the space is narrow, and pits and tunnels for fixing passing bridges are inconvenient to build.

The present utility model discloses a safety mechanism for a retaining needle and a retaining needle having the safety mechanism. The retaining needle comprises a hollow handle and a needle seat at least partially disposed within the handle for receiving a puncture needle, the safety mechanism comprises: a snapping step disposed at an inner side of the hollow handle; at least one elastic arm radially spreading outward disposed on the needle seat, an end portion of the elastic arm has a snapping portion radially protruding outward, the snapping portion being engaged with the snapping step; a button disposed on a distal side portion of the handle; the button, when being depressed, pushing the elastic arm along a radial inward direction, such that while the snapping portion of the elastic arm is disengaged from the snapping step, the needle seat and the puncture needle stretching outside of the handle are retracted into the hollow handle by virtue of vacuum within the hollow handle.

The invention discloses an equipment box for electric power. The equipment box comprises a cabinet body. The cabinet body is hinged to a cabinet door through a group of hinges. Both sides of the cabinet body are provided with mounting platforms in cooperation with a multistage oil cylinder. The multistage oil cylinder is arranged in a pit. A group of damping springs is arranged on the upper part of the cabinet body. The upper parts of the damping springs are connected with an upper cover plate. Light illuminance sensors are arranged at the lower parts of both sides of the upper cover plate. Aremote control signal receiver is arranged on the upper part of the cabinet body. A group of installation boards is arranged inside the cabinet body. A wire protection housing is arranged at the rearpart of the cabinet body. The pit is hinged to a push door through a group of hinge pins. The push door adapts to the wire protection housing. The equipment box for electric power can be embedded in the ground and can be extended out of the ground, is easy to unfold and fold, can be unfolded and folded according to actual needs, has a damping function, and is safe to use and operate.

The invention discloses a robot cooperative folding and unfolding device and method, and relates to the technical field of ships. A hanging bracket component plays a supporting role. A rolling compensation device comprises a first swing oil cylinder and a second swing oil cylinder which are horizontally arranged to realize rolling compensation of the ship body. A heave compensation device is a heave compensation winch and is used for realizing heave compensation of the ship body; a pitching compensation device comprises a first servo hydraulic cylinder and a second servo hydraulic cylinder andis used for realizing pitching compensation on the ship body; a mechanical arm winding and unwinding device is provided with a visual servo mechanical arm, a hook of a mooring rope is in butt joint with an unmanned submersible or a lifting ring, an anti-collision bottom plate is arranged at the bottom of the device, an elastic buffer device is arranged above the anti-collision bottom plate, and thus the unmanned submersible is prevented from being collided and damaged. The device has the advantages that three-degree-of-freedom compensation caused by stormy waves can be actively completed, hooking and unhooking actions are autonomously completed by means of the mechanical arm, and the unmanned submersible is automatically and intelligently recycled with high safety and high efficiency.

A laser fiber, is modified to have a tip that has a length that is predetermined to ensure that the tip remains viable throughout a given procedure type, despite the presence of burn-back. The extended tip is defined by stripping back the jacket of the laser fiber over the pre-determined length starting at the distal end of the fiber. The stripped portion of the fiber is then dip-coated with a layer of polymeric coating such as an acrylate. A visual indicator can be printed onto the extended tip to aid in the use of the extended fiber. A self-aligning stability sheath is provided to make insertion easier in certain types of endoscopes. The laser fiber with extended tip can be pre-inserted into the sheath and sold as a pre-prepared kit for ease of use and protection of the fiber.

The present utility model discloses a safety mechanism for a retaining needle and a retaining needle having the safety mechanism. The retaining needle comprises a hollow handle and a needle seat at least partially disposed within the handle for receiving a puncture needle, the safety mechanism comprises: a snapping step disposed at an inner side of the hollow handle; at least one elastic arm radially spreading outward disposed on the needle seat, an end portion of the elastic arm has a snapping portion radially protruding outward, the snapping portion being engaged with the snapping step; a button disposed on a distal side portion of the handle; the button, when being depressed, pushing the elastic arm along a radial inward direction, such that while the snapping portion of the elastic arm is disengaged from the snapping step, the needle seat and the puncture needle stretching outside of the handle are retracted into the hollow handle by virtue of vacuum within the hollow handle.

An injection device, which comprises a nozzle and which is used for an underground coal gasification process; the nozzle and the injection device are used for continuously injecting a high-concentration oxidant into an underground coal layer during the underground coal gasification process, in which case the high-concentration oxidant may be used safely and steadily to obtain a high-quality and stable product gas, while a retraction cycle and / or a retraction distance of a retraction method in the existing technology may be greatly shortened, thus achieving the continuous and steady operation of the underground coal gasification process. Also disclosed is a method for operating the injection device.

The utility model relates to a revolving body towing fish retracting and releasing device, comprising an installation base, and a plurality of uprights are arranged on the installation base. Installed on the trolley, the mobile hanger is provided with a vibration-damping pulley block and a circular arc guide plate; the installation base is provided with a storage rack, and a swing arm mechanism is provided on both sides of the storage rack to form a crank-slider mechanism. The frame linkage can be placed outside the installation base or inside the installation base; there is also a retractable winch, and the towline on the retractable winch bypasses the vibration-damping roller set of the mobile hanger to connect with the revolving body towfish. The invention provides a revolving body tow fish retracting and releasing device, by adopting the above structure and mechanism, the mobile hanger, the swing arm mechanism, the stern rope, the tow cable, the storage rack and the retracting and releasing winch work together to complete the tow fish recovery ( Actions such as deployment), dragging, water exit, righting, flipping, and storage, so as to smoothly realize the functions of tow fish retraction, towing and storage.

The invention discloses a flying automobile wing contraction-release system, comprising a contraction-release guide mechanism, two contraction-release locking mechanisms and two skin anti-interferencemechanisms; the contraction-release guide mechanism is used for contracting, releasing and rotating wings; the two contraction-release locking mechanisms are used for ensuring safety and reliabilityfor the contraction and release of the wings; the two skin anti-interference mechanisms are used for ensuring completeness of pneumatic contours of the wings. The flying automobile wing contraction-release system is good in safety and reliability, simple in structure, low in manufacture cost and easy to use for civil and commercial purposes.