34results about How to "Quick reel" patented technology

The invention discloses a self-walking large-width heavy take-up and pay-off machine and a take-up and pay-off method thereof. The self-walking large-width heavy take-up and pay-off machine comprises a ground track, a first movable lifting coiling device and a second movable lifting coiling device. The invention further discloses a take-up and pay-off method of the self-walking large-width heavy take-up and pay-off machine. The self-walking large-width heavy take-up and pay-off machine is reasonable and ingenious in structural design. Two movable lifting coiling devices are adopted and arranged on the ground track to move towards each other or away from each other, and correspondingly a wide wire coil is enabled to be clamped or released. The self-walking large-width heavy take-up and pay-off machine is free of limitation of the width of the wire coil and wide in application range, two bridge cranes are adopted to carry out independent load bearing, load bearing load and lifting load can be designed according to the size of the wire coil, the demand for the load bearing load and the lifting load of the wide wire coil is satisfied, and a tip cone lifting mechanism is capable of achieving automatic lifting motion. The self-walking large-width heavy take-up and pay-off machine is convenient to operate, time-saving and labor-saving, capable of lowering labor intensity, effectively improving work efficiency, simple in process, low in cost, prone to achieve, and capable of achieving motions of take-up and pay-off rapidly, evenly and continuously.

The invention discloses a travelling type field-operation optical cable extension and retraction frame, and relates to the technical field of field operation equipment. The travelling type field-operation optical cable extension and retraction frame comprises a travelling framework, wherein the bottom of the travelling framework is equipped with travelling wheels, and the top of the travelling framework is equipped with a pull rod for grip; a left cable tray supporting shaft and a right cable tray supporting shaft for mounting an optical cable disc roll are arranged on the travelling framework; the left cable tray supporting shaft and the optical cable disc roll can synchronously rotate; the travelling wheels are in transmission connection to a gear commutator through a clutch; the gear commutator is in transmission connection to the left cable disc supporting shaft, and the rotation direction of the left cable tray supporting shaft can be changed by reversing, so that the optical cable disc roll can realize positive rotation or negative rotation; and a clutch handle which is connected to the clutch and is used for controlling the clutch to achieve separation and reunion is arranged on the pull rod. The travelling type field-operation optical cable extension and retraction frame disclosed by the invention can be dragged to move forwards, and power is provided by rotation of thetravelling wheels, so that extension and retraction action of the optical cable disc roll is realized, and therefore, paving and recycling operation of the optical cables can achieve the effects of not using electric energy and greatly relieving body burden of operation staff.

The invention relates to equipment with a take-up function, in particular to equipment with a quick take-up function for a cable. According to the equipment with the quick take-up function for the cable, the cable can be rapidly taken up, and the cable can be automatically cut off. The equipment with the rapid take-up function for the cable comprises a first supporting frame, a second supporting frame, a bottom plate, a coiling mechanism and an automatic rotating mechanism. The first supporting frame is provided with the second supporting frame. The bottom plate is arranged on the second supporting frame. The coiling mechanism is arranged on the bottom plate. The automatic rotating mechanism is arranged between the bottom plate and the coiling mechanism. According to the equipment with thequick take-up function for the cable, through mutual cooperation of the coiling mechanism and the automatic rotating mechanism, a motor is started, a rotating connecting rod automatically rotates, acable reel automatically rotates, accordingly, the cable is automatically wound, the effect of rapidly and automatically winding the cable is achieved, and through arrangement of a clamping mechanism,the cable is guided through a clamping rod.

The invention discloses a portable earphone capable of being taken up quickly and an operation method. The earphone comprises two earplugs, a plug, an earphone cable and a shell; a containing groove is arranged on the side wall of the shell, and a plurality of fixed blocks are fixedly connected to the side wall of the containing groove; each fixed block is in threaded connection with a thread rod;one end of the thread rod is fixedly connected with a sucker; two take-up pulleys are arranged inside the shell; the earphone cable is wound on the two take-up pulleys; a rotating rod is fixedly connected on each take-up pulley; the side wall of the shell is provided with an cavity; one end of the rotating rod is rotatably connected to the inner side wall of the shell; and one end of the rotatingrod penetrates through the side wall of the cavity and is rotatably connected to the side wall of the cavity. The device is convenient to be placed on a smooth object, and meanwhile stains on the earphone cable can be cleaned conveniently, so that the portable earphone capable of being taken up quickly is worthy of popularization.

The invention discloses an electrician auxiliary toolkit and relates to the technical field of electrician auxiliary tools. The electrician auxiliary toolkit comprises a box. The top of the box is rotatably connected with a top cover. An opening and closing device is fixedly connected to the middle position of the front side of the box. A lifting storage area is fixedly connected to the interior of the box. Slide rails are formed on the two sides of the outer wall of the box. A movable lantern ring is slidably connected to the surface of each slide rail. The surface of each movable lantern ring is provided with a fixed knob. A first rotary support is rotatably connected to the outer side of each fixed knob. The top end of each first rotary support is rotatably connected with the top coverthrough a second rotary support. A wire winding device is fixedly connected to one side of the interior of the box. By adopting the electrician auxiliary toolkit, the problems that a wire to be woundcannot be wound rapidly, an article needs to be fixed manually by an electrician, and tools in a tool storage area is inconvenient to take and use are solved; the article is clamped and loosened freely; the electrician does not need to clamp and fix the article manually.

The invention discloses an electrocardiograph. The electrocardiograph comprises a main shell, a main unit arranged in the main shell, six chest leads and four limb leads, wherein the six chest leads and the four limb leads are electrically connected with the main unit; the electrocardiograph is characterized in that chest lead wires comprise chest lead wire cores and chest lead wire wrappers, thechest lead wire wrappers are internally provided with chest lead metal mesh layers, and limb lead wires comprise limb lead wire cores and limb lead wire wrappers; the limb lead wire wrappers are internally provided with limb lead metal mesh layers, and the chest lead metal mesh layers and the limb lead metal mesh layers are electrically connected with the ground terminal of the main unit. Throughthe line arrangement type leads and arranged obviously-unequal-length free ends in accord with the human body parts, installing positions of different leads are clearly reminded to avoid confusion, the lead wire strength is enhanced through the metal mesh layers arranged in the lead wire wrappers, and twisting is resisted; lead wire twining is avoided, the lead wires are quickly collected throughan automatic wire collection device, it is ensured that after using, the lead wires cannot be disordered, and the problem of lead wire twisting and twining is solved fundamentally.

The invention provides an automatic line dragging alarming casting rod. The automatic line dragging alarming casting rod is composed of a fishing rod, a fishing line, a reel, a line dragger, a rod holding device, a pull switch, an alarm, a contact switch and a fixing rope ring. The pull switch is located at the top end of the fishing rod, a small hook stretches out, the fishing line is hung on the small hook, the line dragger is located at the lower middle end of the fishing rod, the fishing line is wound around a dragging rod of the line dragger, the rod holding device is located beside the line dragger and used for holding the line dragger in a force accumulation state, the alarm is located on the fishing rod, alarming actions are generated through actions of the rod holding device, and the fixing rope ring is installed on the fishing rod and connected with a fixing rope.

The invention discloses an anti-collision new energy automobile charging pile, and relates to the technical field of new energy automobile charging piles, the anti-collision new energy automobile charging pile comprises a charging pile body, an anti-collision beam is arranged on the front surface of the charging pile body, first springs are fixedly connected to the two sides of the anti-collisionbeam, and a first rotating shaft is fixedly connected to the interior of a through hole; a buffer rod is rotatably connected to the side face of the first rotating shaft, a groove is formed in the side, close to the anti-collision beam, of the sliding block, a take-up shell is installed in the charging pile, a take-up column is arranged in the take-up shell, and fixed round blocks are fixedly connected to the two ends of the take-up column. The side surface of the fixed round block is fixedly connected to the inner side wall of the take-up shell. According to the anti-collision new energy automobile charging pile, through the cooperative arrangement of the fixing column and the buffer rod, the anti-collision beam can play a role in buffering and force unloading in the using process, and through the cooperative arrangement of the take-up reel and the clockwork spring, after using is completed in the using process, the locking cap is rotated, and automatic and rapid take-up can be completed.

The invention discloses an earphone for facilitating wire take-up. The earphone comprises an earphone storage main body, a front roller is movably connected to the front side in the earphone storage main body through a rotating shaft, a rear roller is movably connected to the rear side in the earphone storage main body through the rotating shaft, an earphone wire is twined on an annular side faceof the rotating shaft, an earphone plug is electrically connected to the top of the earphone wire, and an earplug is electrically connected to the bottom of the earphone wire. The earphone provided bythe invention is provided with the earphone storage main body, the rotating shaft, the front roller, the rear roller, the earphone wire, the earphone plug, the earplug, a winding block, a first through hole, a pull rod, a pull head, a locking plate, a first spring, an expansion link, a holding plate and a second spring, by means of the cooperative use of the components, the problem that wire take-up cannot be performed quickly and conveniently after the existing earphone is used, resulting in mutual twining of the earphone wires is solved, the earphone for facilitating wire take-up has the advantages of being fast and convenient to take up the wires, being convenient for a user to quickly take up the wires and improving the wire take-up efficiency.

The invention provides a textile weaving pay-off device. The textile weaving pay-off device comprises a chassis, a support body, pay-off columns, sliding grooves and work motors; the support body is of a frame structure and is arranged above the chassis, the top of the support body is sleeved with winding detectors, the sliding grooves are formed in the longitudinal symmetry positions of the support body, the pay-off columns are arranged between the sliding grooves in the vertical direction, rotating shafts are arranged at the bottoms of the pay-off columns and are connected with the work motors, bolt connection blocks are arranged on the side edges of the bottom of the chassis, and a plurality of suction cups are arranged on the bottom face of the chassis. According to the whole device, the position relation of the pay-off columns between the sliding grooves is adjusted, the aim that winding easily happens during pay-of, wound wires penetrate the winding detectors, when the pay-off columns carry out pay-off, shrinkage winding can be formed between the pay-off columns, and pay-off can be effectively controlled is effectively achieved, and the whole device is reasonable in design, rapid and convenient to operate and capable of being further popularized and applied.

The invention relates to a raft reel capable of automatic resetting through magnetic driving by using a slow falling system. The reel comprises a reel body, a cable wheel and a rocking handle, a magnet base which moves in the axial direction is arranged on one side of the surface of a wheel arm of the cable wheel, and slow falling magnets are fixed to the end, close to the wheel arm of the cable wheel, of the magnet base; clutch magnets are fixed to the end, away from the wheel arm of the cable wheel, of the magnet base, first magnets and second magnets of which polarities are respectively identical to and opposite to the polarities of the clutch magnets are arranged below the clutch magnets, and the first magnets and the second magnets are arranged at intervals; the first magnets and thesecond magnets are fixed onto a driving mechanism respectively, and a driving mechanism drives the first magnets relative to the clutch magnets to make the magnet base close to the wheel arm of the cable wheel or drives the second magnets relative to the clutch magnets to make the magnet base away from the wheel arm of the cable wheel. According to the raft reel capable of automatic resetting through magnetic driving by using the slow falling system, through effects of opposite attraction and same repulsion of the magnets, the axial movement of the magnet base is achieved, automatic resettingis achieved by shaking the rocking handle, and the raft reel is reasonable in structure and more diversified.

The invention discloses a charging cable storage device for a new energy automobile charging pile, and relates to the technical field of new energy automobile charging piles. The charging cable storage device comprises a shell and a cable storage mechanism arranged in the shell, wherein the shell comprises a left shell body and a right shell body covering the left shell body; a cable outlet and acable inlet are formed in the top of the left shell body along the center of the left shell body in a central symmetry manner; a first cable fixer and a second cable fixer are arranged at the cable outlet and the cable inlet respectively; the cable storage mechanism comprises a plurality of parallel cable swing rod assemblies rotationally arranged on the inner side wall of the left shell body, anda damping structure used for limiting swing of the cable swing rod assemblies is arranged on one sides of the cable swing rod assemblies; and a control rod assembly for controlling the cable swing rod assemblies to swing is arranged on the plurality of cable swing rod assemblies in a penetrating manner. According to the cable storage device, rapid taking up and paying off of the cable are realized, and the labor intensity of cable recycling is greatly relieved.

The invention discloses a fishing reel with a turning function, and belongs to the technical field of fishing gears. The fishing reel comprises a line reel and a base. A turning device is arranged between the line reel and the base; the turning device comprises a rotary carrier seat, a rotary device and a positioning device; the rotary carrier seat comprises a carrier upright plate and a rotary seat plate; the rotary device comprises a rotary hole and a rotary shaft, the rotary hole is formed in the rotary seat plate by means of digging, and the rotary shaft is fixedly arranged on the base ina connected manner; the positioning device comprises clamp holes and a clamp rod. The fishing reel has the advantages that an axle on the line reel can be parallel to a fishing rod by the aid of the turning device when fishing lines need to be cast from the fishing reel, and accordingly the fishing lines can be conveniently quickly cast from long distances; the axle on the line reel can be perpendicular to the fishing rod by the aid of the turning device in fishing procedures after the fishing lines fall into water, and accordingly the lines can be conveniently smoothly and quickly paid off and taken up when fishes swallowed bait; the fishing lines can be cast over the long distances and can be smoothly paid off and taken up, and the fishing reel is small, portable and light and is good inhand feel.

The invention discloses a line device of a cutting lathe. The line device of the cutting lathe comprises a base plate, a first support frame, a second support frame, a first bearing, a first main shaft, a second bearing, a second main shaft, a line wheel and a tension mechanism. The first support frame and the second support frame are fixedly connected on the base plate. The first bearing is fixedly connected on the first support frame. The first main shaft is arranged on the first bearing and the second bearing is fixedly connected on the second support frame. The second main shaft is arranged on the second bearing. The line wheel is arranged between the first main shaft and the second main shaft. One end of the second main shaft is provided with a transmission hook. A first through hole is arranged in the line wheel and the transmission hook hooks the first through hole. The tension mechanism is fixedly connected on the base plate. The line device of the cutting lathe is simple in structure, capable of rapidly coiling, convenient to operate, stable in tension as the tension mechanism is used, high in stability of operation of the device and high in anti-interference ability.

The invention relates to a fishing reel which comprises a main body, a main body head and a main body head cover, wherein a rocker arm is arranged on the main body head and is connected with a fluted disc in the main body head by virtue of a bearing; a transmission gear is fixed in the main body by virtue of a transmission gear screw and a geared sleeve; the transmission gear is meshed with the fluted disc; the main body head and the main body head cover are sleeved with a toothed bar; an inner hole is formed in the toothed bar; a thread is formed in one side of the toothed bar and is meshed with the fluted disc; a one-way bearing is arranged on the toothed bar; a main shaft penetrates through the inner hole in the toothed bar; a slide block is arranged on one side of the main shaft, is fixedly arranged on the main shaft by virtue of a main shaft screw and is contacted with the transmission gear; the main body, the main body head and the main body head cover are sequentially connected with one another; the main shaft penetrates out of the main body head cover; and a reel is fixedly arranged on the main shaft. With the adoption of the design, a rewinding system of a line throwing mechanism is saved, and the rewinding function is realized by rotating the rocker arm to realize corresponding rotation of the reel. Meanwhile, the reel is driven to reciprocate by virtue of the action of the transmission gear, friction force caused by linkage at each link of the fishing reel is greatly reduced, and the output torque is high.

The invention discloses a new energy vehicle charging pile for quickly retracting cables and a cable retracting method thereof, comprising a charging pile body and a cable storage device arranged inside the charging pile body, and the cable storage device includes two The fixed plates arranged at a distance and the first wire wheel, the second wire wheel and the cable retracting assembly arranged between the two fixed plates, at least one of the cable retracting assemblies is located between the first wire wheel and the second wire Between the wheels, one end of the cable is connected to the charging gun, and the other end is connected to the charging module. The cable between the two wire pulleys adjusts the drooping length of the cable through the cable retracting assembly, and can quickly retract the cable into the cable storage device, effectively protecting the cable and ensuring its service life.

The invention discloses an automatic wire arranging device which comprises a support and a transverse moving device. Mounting seats are arranged on the bracket and comprise a first mounting seat and a second mounting seat; a first mounting hole is formed in the middle of the first mounting seat, a second mounting hole is formed in the middle of the second mounting seat, and a transverse moving device is mounted through the first mounting hole and the second mounting hole; the transverse moving device comprises a lead screw and a sliding block; the sliding block is installed on the lead screw, a wire passing device is arranged on the upper surface of the sliding block and comprises a wire passing ring, a connecting column and an installation plate, and the wire passing ring is used for supporting a steel wire rope. The automatic wire arranging device is arranged, when a steel wire rope is taken up, the steel wire rope is supported through a rope passing ring on the automatic wire arranging device, and the steel wire rope is driven to move left and right, so that the steel wire rope is uniformly arranged on the take-up reel, and the take-up process is rapid and stable; the production efficiency is improved, and the production cost is saved.

The invention provides an automatic line dragging alarming casting rod. The automatic line dragging alarming casting rod is composed of a fishing rod, a fishing line, a reel, a line dragger, a rod holding device, a pull switch, an alarm, a contact switch and a fixing rope ring. The pull switch is located at the top end of the fishing rod, a small hook stretches out, the fishing line is hung on the small hook, the line dragger is located at the lower middle end of the fishing rod, the fishing line is wound around a dragging rod of the line dragger, the rod holding device is located beside the line dragger and used for holding the line dragger in a force accumulation state, the alarm is located on the fishing rod, alarming actions are generated through actions of the rod holding device, and the fixing rope ring is installed on the fishing rod and connected with a fixing rope.

The invention discloses a textile mechanical device capable of realizing quantitative wire take-up. The device includes a wire take-up control box, a wire take-up drum, a wire take-up control bearing base plate, and a wire take-up control elastic support mechanism; the invention can automatically realize the wire take-up operation , and can achieve fast winding, greatly improving work efficiency, saving labor, high stability and safety performance. This device can set the rotation time of the take-up rotating motor according to the amount of take-up, so as to obtain the work time of take-up suitable for the amount of take-up; it will not waste resources due to equipment idling; when the take-up starts, the take-up roller is placed on the main take-up On the spool, and close to the iron sheet; make it easy to disassemble and assemble between the take-up drum and the main take-up shaft; when the equipment is not in use, its volume can be reduced without taking up too much space; when the take-up is completed, the take-up The take-up drum position push rod in the wire drum position pushing mechanism moves from left to right, which is used to drive the wire take-up drum to automatically separate from the iron sheet, so that the wire take-up drum can be easily removed.

The invention discloses a design method of a special winding and unwinding device for different proportional test lines of a grounding resistance tester. The design method comprises the following steps that 1, according to the test scene of the ground resistance tester, the length of the test line is determined, the speed ratio of a hand-operated rod to the take-up and pay-off end A to the take-upand pay-off end B is determined, and the diameter of the device is determined; 2, the number of teeth of each gear of an input epicyclic gear train is determined according to the transmission model of the epicyclic gear train input by the device; 3, the number of teeth of each gear train of a transition turnover wheel system is determined according to the transmission model of the transition turnover wheel system of the device; and 4, the modulus of an input turnover wheel system gear and the transition turnover wheel system is determined according to the diameter of the device. According tothe design method, a motion mathematical model is established according to the transmission principle of the device, the length ratio of the lines can be tested according to application occasions, a special take-up and pay-off device is designed according to the take-up and pay-off speed and the diameter of the device, and the accurate take-up of the test site is realized.

The invention relates to a fishing reel which comprises a main body, a main body head and a main body head cover, wherein a rocker arm is arranged on the main body head and is connected with a fluted disc in the main body head by virtue of a bearing; a transmission gear is fixed in the main body by virtue of a transmission gear screw and a geared sleeve; the transmission gear is meshed with the fluted disc; the main body head and the main body head cover are sleeved with a toothed bar; an inner hole is formed in the toothed bar; a thread is formed in one side of the toothed bar and is meshed with the fluted disc; a one-way bearing is arranged on the toothed bar; a main shaft penetrates through the inner hole in the toothed bar; a slide block is arranged on one side of the main shaft, is fixedly arranged on the main shaft by virtue of a main shaft screw and is contacted with the transmission gear; the main body, the main body head and the main body head cover are sequentially connected with one another; the main shaft penetrates out of the main body head cover; and a reel is fixedly arranged on the main shaft. With the adoption of the design, a rewinding system of a line throwing mechanism is saved, and the rewinding function is realized by rotating the rocker arm to realize corresponding rotation of the reel. Meanwhile, the reel is driven to reciprocate by virtue of the action of the transmission gear, friction force caused by linkage at each link of the fishing reel is greatly reduced, and the output torque is high.

The present invention discloses a longitude line automatic feeding electric control system of a metal netting machine. The longitude line automatic feeding electric control system comprises a special-purpose controller, a servo motor, a proximity switch, an optical coupler, a photoelectric encoder, a liquid crystal display screen, a power supply switch, an on-off switch, an automatic reset switch,an inching switch, a netting width adjusting knob and a netting density adjusting button. The longitude line automatic feeding electric control system of the present invention adopts a vector controltechnology, feeds a rapier of the metal netting machine rapidly via an absolute value encoder and takes up the lines rapidly. By the above mode, compared with the conventional mechanical intermittentline automatic feeding, the longitude line automatic feeding electric control system of the present invention enables a mechanical structure to be simplified, realizes the weft density accurate control, and can adjust the netting weft and the netting width during a netting process.

The invention discloses a self-propelled large-width heavy-duty pay-off machine, which includes a ground rail, a first movable lifting winding device and a second movable lifting winding device; The take-up and pay-off method of the machine, the present invention provides a self-propelled large-width heavy-duty take-up and pay-off machine with a reasonable and ingenious structural design. Clamping or loosening, not limited by the width of the wire reel, has a wide range of applications, adopts two carriages for independent load, can design the load and lifting load according to the size of the wire reel, to meet the needs of the load and lifting load of the wide wire reel, Moreover, the top cone lifting mechanism can realize automatic lifting action, which is convenient to operate, saves time and effort, not only reduces labor intensity, but also effectively improves work efficiency; , Balanced and continuous to achieve wire take-up or pay-off action.

The invention provides an electronic device. A cable control method includes the steps: determining the included angle between a rotating rod and a horizontal plane, wherein the rotating rod is rotatably arranged on a target robot, the rotation axis of the rotating rod is perpendicular to the working plane of the target robot, and a power supply cable is connected to the target robot along the rotating rod; presetting multiple angle ranges, and regarding the angle range which the included angle is within as a target angle range; and generating a corresponding control instruction according to the target angle range, wherein the control instruction includes a pay-off instruction or a take-up instruction. Through the cable control method and device, a storage medium and the electronic deviceprovided by the embodiment, take-up or pay-off is achieved based on the included angle between the rotating rod and the horizontal plane, it is unnecessary to consider the relative position between anauxiliary device and the target robot, the control mode is simple, the processing amount is small, and rapid take-up and pay-off control can be achieved; and besides, as the rotating rod can rotate,it can be effectively avoided that the power supply cable twines around the target robot.

According to aone-hand pressing take-up ink fountain, a handle with meshing teeth is pressed by a single hand to drive a speed change gear to drive a ink fountain line wheel to rotate synchronously, so that the purpose of quick single-hand take-up is achieved; and moreover, the one-hand pressing take-up ink fountain is stable in structural performance, high in take-up speed and capable of being operated by one single hand, and the working efficiency is greatly improved.

The invention provides a take-up-type charging pile and relates to the technical field of charging equipment. The take-up-type charging pile comprises a shell. A through hole penetrating through the shell is formed in the middle of the shell and internally provided with a connecting rod. The two ends of the connecting rod are arranged on the side wall, corresponding to the through hole, of the shell in an embedded mode. A rotary shaft is fixedly mounted in the middle of the connecting rod, and the outer wall of the rotary shaft is sleeved with an idler wheel. Annular take-up grooves are formedin the middle of the side wall, radially perpendicular to the idler wheel, on the idler wheel evenly, and a first inserting hole and a second inserting hole corresponding to two charging guns are formed in the side wall, away from the connecting rod, of the rotary shaft. A first clamping device and a second clamping device corresponding to the charging guns are fixedly mounted on the inner wall,corresponding to the first inserting hole and the second inserting hole, of the rotary shaft. The structure is simple, charging wires can be taken up and arranged effectively, and the disadvantage ofdisorderly stacking of the charging wires is avoided.

The invention relates to a tension adjustment device and winch device for mooring an unmanned aerial vehicle and a tension adjustment method. The tension adjustment device comprises a tension induction arm, a detection element, a control element and an elastic part; the detection element is connected with the tension induction arm and outputs detection signals according to rotation of the tensioninduction arm; the control element receives the detection signals and outputs control signals according to the detection signals; the tension induction arm is connected to a first end of the elastic part; the tension adjustment device for the mooring unmanned aerial vehicle further comprises a steering engine; the steering engine comprises a swing arm, and the swing arm is connected with a secondend of the elastic part; the steering engine receives the control signals and drives the swing arm to swing according to the control signals; when the tension induction arm rotates in the direction ofstretching the elastic part, and the swing arm sings in the direction of shrinking the elastic part; and when the tension induction arm rotates in the direction of shrinking the elastic part, and theswing arm swings in the direction of stretching the elastic part. According to the tension adjustment device, the load of the unmanned aerial vehicle when rising is reduced, and taking up of the unmanned aerial vehicle is facilitated when falling.