247 results about "Split pin" patented technology

The utility model relates to a seesaw type propeller hub structure which comprises a base, a propeller clamp and a propeller blade, a main shaft and an amplitude limiting shaft are arranged in the middle of the propeller clamp, the main shaft penetrates through the amplitude limiting shaft, a main propeller bolt is arranged between the propeller clamp and the propeller blade, a gasket is arranged on the outer wall of the main propeller bolt, a balance weight is arranged on the outer surface of the upper end of the propeller clamp, and a balance weight bolt is arranged in the middle of the balance weight. Paddle bushings are arranged in the middles of the paddles, nuts are in threaded connection with the outer walls of the main paddle bolts, cotter pins are arranged in the middles of the main paddle bolts, and power bolts are arranged at the bottom of the base. According to the utility model, the flapping amplitude relative to the rotor propeller shaft is reduced through the variable pitch-flapping coupling, the transient flapping and the steady flapping relative to the propeller shaft are reduced, the flapping function and the variable pitch function are integrated at one hinge point, the number of parts is reduced, and the overall structure is simplified; due to the fact that parts are reduced, the overall weight is lighter, manufacturing is easy, meanwhile, the number of movable parts is smaller, and the reliability and maintainability of a system can be improved.

The application discloses a reactor in-core component core upper plate underwater multifunctional detection device and a positioning method. The detection device comprises an omnidirectional moving chassis and an action mechanism detachably carried on the omnidirectional moving chassis. The action mechanism comprises a video lifting inspection module, a fuel positioning pin verticality inspection module, an in-situ ultrasonic inspection module of the fuel positioning pin and the split pin, and a pin hole emergency inspection module. The detection device is used for video imaging inspection of components in the core upper plate area through the video lifting inspection module, measures the inclination angle of the fuel positioning pin through the fuel positioning pin verticality inspection module, detects defects in the typical failure area of the split pin and potential cracks in the thread area and the light rod area of the fuel positioning pin through the in-situ ultrasonic inspection module of the fuel positioning pin and the split pin, and realizes in-situ emergency inspection of the pin hole of the core upper plate through the pin hole emergency inspection module, thereby solving the industry problem that there is a lack of comprehensive detection means in the core upper plate area.

Snowmobile transmission, including a housing with a cover, an input shaft and an output shaft arranged inside the housing, and a chain transmission drive including a chain connecting a drive sprocket arranged on the input shaft to a driven sprocket arranged on the output shaft, a reverse gear axle about which a reverse gear sprocket freely rotates also arranged inside the housing, the reverse gear sprocket engaging with the chain, and a reverse gear engaging with a movable gear arranged on a grooved sleeve of the input shaft, which is movable by tilting an inner switching fork and being driven by an axle with a lever, an adjusting rod, an outer switching fork, wherein rotation of the outer switching fork is restricted by a removable sector attached to the housing cover, and an adjusting screw arranged on the housing, abutting against a support sleeve and fixed by a cotter pin.

The invention discloses an expansion pin assembly for a split reamer bit, the split reamer bit and an assembling method. The expansion pin assembly for the split type reamer bit comprises an expansion pin shaft sleeve, an expansion pin bolt and an expansion pin nut. An expansion head is arranged at one end of the expansion pin shaft sleeve, a first circular truncated cone through hole is formed in the expansion head, and the hole wall surface of the first circular truncated cone through hole is a first circular truncated cone surface; a locking head is arranged at one end of the expansion pin bolt, and the outer surface of the locking head is a second circular truncated cone face matched with the first circular truncated cone face. And when the expansion pin bolt is completely inserted into the expansion pin shaft sleeve, the second circular truncated cone surface is tightly attached to the first circular truncated cone surface. According to the expansion pin assembly, through the self-locking effect between the first circular truncated cone face and the second circular truncated cone face, the loosening phenomenon in the construction process can be effectively prevented, mechanical self-locking is achieved, an anti-loosening device such as a locking nut or a cotter pin does not need to be additionally arranged, and the connection reliability is greatly improved.

The invention relates to the technical field of flexible photovoltaic supports, in particular to a photovoltaic flexible end support structure, which comprises a support unit, an end support unit, an end support unit and an end support unit, and is characterized in that the support unit comprises a single-column side column and a side beam fixedly connected with the single-column side column; each force transmission pivot unit comprises a cotter pin connected with the corresponding side cross beam in a rotating mode, one end of each assembly cable penetrates through an opening located in the surface of the corresponding cotter pin, and the tail end of each assembly cable is fixed to the corresponding cotter pin through an arranged connecting piece; the cable-stayed unit is matched with the force transmission pivot unit and comprises a cable-stayed connecting assembly, and one end of the cable-stayed connecting assembly is rotationally connected with the cotter pin. The side stand column adopts a single column form, the construction requirement on a side stand column pile foundation can be reduced, the side stand column has very high adaptability to different mountain slopes, the assembly cable is directly connected with the cable-stayed part and the cable-stayed connecting assembly through the cotter pin, and axial force generated by the assembly cable is most directly transmitted to the cable-stayed part and then is transmitted to a cable-stayed foundation.

The application provides a hand-throwing riot control device for pneumatically releasing a riot control agent. After the device is thrown, the pressure rod is lifted up under the action of the pressure in the container shell, the handle is rotated around the supporting shaft on the inner cover of the container, the split pin slides in the arc-shaped slide to the terminal position, the rotation of the handle is limited, the lifting distance of the pressure rod is limited, the liquid flow channel is opened after the pressure rod is lifted, the solution of the riot control agent flows through the liquid flow channel under the action of the internal pressure, and is sprayed into the external environment through the atomizing nozzle connected at the end of the liquid flow channel. When the device is sprayed, the device rotates rapidly because the force at one end of the device and the center of mass are not at the same point, so that the device has the function of anti-throwing. The device is applied to the disposal of mass incidents and the like. The application can enrich the devices used for riot control operations and provide diversified choices for disposal operations.

This utility model belongs to the field of pre-embedded bolt anti-loosening technology, and discloses a pre-embedded bolt anti-loosening structure for metal products. It includes a nut rotatably mounted on the lower outer side of the bolt body, grooves on both sides of the nut, a cotter pin fitted inside the grooves and inserted into the bolt body, a locking washer fixed to the upper surface of the nut, and a shape memory alloy spring washer fixed to the lower surface of the nut. Through the cotter pin, shape memory alloy spring washer, and locking washer, the cotter pin prevents relative rotation of the bolt, nut, and other connecting parts under vibration or external force, ensuring a stable and safe connection. The shape memory alloy spring washer can increase the pressure at the connection point, reduce contact resistance, and suppress heat generation by deforming under temperature changes and other environmental conditions. It can also absorb some energy to reduce vibration amplitude and ensure connection stability. The locking washer restricts the rotation of the nut and bolt.

The utility model discloses a special tool for opening a cotter pin, which relates to the technical field of cotter pin disassembly and assembly and comprises a pair of clamp bodies with hinge holes in the middle, the clamp bodies are hinged to the hinge holes, and positioning pins are rotatably connected in the hinge holes. The plier body comprises a plier head, a plier handle, a side pressing block, a blade, an excess material groove and a front pressing block; the side face pressing block and the front face pressing block are of rectangular sheet structures perpendicularly fixed to the side face and the front face of the tip end of the plier head. The excess material groove is formed in the opposite surface of the plier head; the cutting edges surround the side of the excess material groove and are positioned on the opposite surfaces of the paired tong heads; the blades comprise front blades and side blades; the operation flexibility when the cotter pin is cut off is improved by arranging the cutting edges on the multiple sides; by arranging the side face pressing block and the front face pressing block, the function of clamping and pressing the cotter pin can be conveniently achieved under the working condition of all angles, by arranging the excess material groove, the cotter pin can be stored after being cut off, and the situation that the cotter pin flies to cause personnel injury or is left in a site is avoided.

The invention relates to the field of electric power system maintenance tools, in particular to an electric power operation tool. The cotter pin mounting tool further comprises a gear box body and a positioning device, the damping regulator and the positioning device are mounted on the gear box body; the abutting rod is used for abutting against the positioning device. The driving gear and the driven gear are arranged in the gear box body; the positioning device comprises a positioning frame, an axial positioning structure and two arc-shaped side baffles. The positioning frame is fixed to the gear box body; the axial positioning structure and the arc-shaped side baffle are mounted on the positioning frame; the two arc-shaped side baffles define a limiting space allowing a screw to be inserted by the cotter pin to enter. The electric power operation tool has the beneficial effects that the electric power operation tool can achieve installation of the cotter pin, the installation consistency is high, and the anti-falling effect can be guaranteed. The arc-shaped side baffles are matched with the screws, the screws are used for assisting in positioning of the electric power operation tool, and deflection in the using process is prevented. The positioning device positions the falling point of the cotter pin to the screw rod, so that the cotter pin is prevented from crossing a pin hole.

This utility model relates to the technical field of rope force distribution devices, specifically a detachable multi-hole force distribution plate for ropes, including a first multi-hole force distribution plate, a second multi-hole force distribution plate, and a long rod. The long rod passes through the mounting holes of the two force distribution plates, and a central pressure spring, a central rod, and a knob are sequentially fitted onto one end of the long rod. The knob is threadedly connected to the central rod, and the two ends of the central pressure spring abut against the second multi-hole force distribution plate and the fitted central rod, respectively. One end of the long rod is connected to the second multi-hole force distribution plate via a stud pin and to the central rod via a cotter pin. The first multi-hole force distribution plate has at least three first mounting brackets, and the second multi-hole force distribution plate has at least four second mounting brackets. The first mounting brackets are located in the gaps between the second mounting brackets, and the mounting holes are located in the mounting brackets. The knob is connected to the central rod via a set screw, and a compression spring is fitted onto the set screw. Both force distribution plates are five-hole force distribution plates, enabling detachable assembly, balanced force distribution, and stable connection. They are suitable for multi-strand ropes, improving applicability and safety.

The application discloses a kind of fast installation split pin left and right flip auxiliary tools, including support frame, the inside one side of the support frame is provided with positioning part;Fixed seat;Pushing assembly;Pushing part, the pushing part is set in the fixed seat, the pushing part penetrates the fixed seat, and extend to the inside of the support frame and the pushing assembly is connected, and the pushing part is used to push the pushing assembly.The application in the embodiment by the split pin installed on tool is fixed at the positioning part on support frame, and then the pushing part on fixed seat is used to move the pushing assembly in support frame, let the special structure on pushing assembly and the opening end of split pin meet and abut, and then complete to let the pushing assembly split pin left and right flip work.Effective realization lets the split pin installed on work position to carry out fast left and right flip work.

This utility model belongs to the field of semiconductor manufacturing technology and discloses a wafer basket handle, including a top plate; two handles, which are arranged opposite each other and connected to the top center of the top plate; four stepped grooves, with every two stepped grooves symmetrically arranged at the bottom of the handle; and four cushioning pads, each cushioning pad being embedded in the corresponding stepped groove. This utility model, by providing a mounting groove at the top center of the top plate, allows the two handles to rotate within the mounting groove via cotter pins. The two corners of the handle's grip end are press-fitted with urethane rubber cushioning pads with a Shore A hardness, which can replace the hard contact between the handle and the top plate, thereby reducing impact force, high-frequency vibration, and the generation of fine particles.

The present application relates to a kind of for aviation HB-02-A type split pin hammering method and hammering special tool.This technical scheme is combined by mechanical and electric control two parts, simple structure, low cost, and small, easy to carry;It is easy to operate, power part is electric, time-saving and labor-saving;Design is ingenious, can realize split pin two remaining foot synchronous high-precision bending and buckle position, and can ensure that each bending of split pin tail is formed once, effectively avoid the deformation misplacement in the installation process of split pin, while greatly improve installation efficiency, further guarantee the installation accuracy of split pin, maximum limit the stress intensity of split pin, well satisfy the need of high anti-looseness performance and high reliability of mechanical connection structure in aviation field.The present application improves the installation quality of split pin, reduces the work intensity of on-site operator and inspector, guarantees the personal safety of operator, reduces the risk of nut damage.

The utility model relates to the technical field of steering axles, and discloses a steering axle assembly structure based on a cast axle body and a tapered roller bearing, which comprises a steering axle body, an oil cylinder assembly is fixedly arranged on the inner wall of the steering axle body, and the tapered roller bearing is arranged on the inner wall of the steering axle body. A steering assembly is arranged on the surface of the steering axle body, an adjusting assembly is arranged in the steering axle body, the steering assembly comprises a steering knuckle, the steering knuckle is hinged to the side face of the steering axle body, and a framework oil seal is fixedly installed on the surface of the steering knuckle. According to the steering axle assembly structure based on the cast axle body and the tapered roller bearing, in order to enable steering to be more stable, a steering knuckle, a framework oil seal, a supporting sleeve, a tapered roller bearing body, a cover plate and an outline body are arranged and matched with a flat gasket, a hub cover, a groove-shaped nut, a pin opening, a hub bolt, a hub nut, an inner hexagonal countersunk head screw and a cotter pin; therefore, the steering is more stable.

The invention discloses a die casting material handle removing servo sawing machine, and belongs to the technical field of sawing machines, the die casting material handle removing servo sawing machine comprises a machine base, an operation table is fixedly installed at the top of the machine base, an L-shaped supporting frame is fixedly installed at the top of the operation table, an air cylinder is fixedly installed at the top of the L-shaped supporting frame, and stamping boxes are fixedly installed on pistons of the operation table and the air cylinder; a controller is fixedly mounted on one side of the L-shaped supporting frame; the self-adaptive fixing mechanism comprises a plurality of ejector rods, the ejector rods are slidably mounted on the sides, close to each other, of the two stamping boxes, and rubber heads are fixedly mounted at the ends, away from the stamping boxes, of the ejector rods. Flexible pressure dispersion and rapid shaping and resetting of the die casting are achieved through the air pressure balance self-adaptive fixing mechanism and the wedge-shaped clamping pin step locking structure, and the clamping stability and the material handle cutting precision of workpieces of different batches are remarkably improved by combining an electric control pressure regulating system and multi-degree-of-freedom cutting positioning.

The utility model discloses a kind of 48 millimeter detonation bomb of deterrent type hand-throwing type riot, including firing mechanism and medicine box mechanism, firing mechanism includes fuse body, grip piece and needle prick delay detonator, still movably connected with pin shaft and split pin on fuse body, still connected with spring and firing pin block assembly on pin shaft, firing pin block assembly includes firing pin and turnover block, firing pin block assembly has first position and second position, when first position, spring is in compression state under the action of turnover block, and spring reset can drive firing pin block assembly to rotate from first position to second position;Split pin is connected with pull ring;Medicine box mechanism includes shell, inner medicine box and end cover, inner medicine box is filled with detonating agent, needle prick delay detonator extends into detonating agent, filling chamber is opened in shell, filling chamber is filled with paraffin wax.This scheme can emit greater sound and strong light, suitable for use in vast space, and can carry out more accurate strike.

The invention relates to the technical field of aircraft structure design, in particular to a structure connecting device capable of unilaterally operating and fixing force and a mounting method. The fixing base is of a flange structure, a stepped hole is formed in the fixing base, and the rod portion of the stepped bolt is of a stepped structure and sequentially comprises an interference fit area, a polished rod area, a thread area and a tail clamping area from the root to the tail. After the stepped bolt penetrates through the fixed base and the interference fit area to be in interference fit with the small end face of the stepped hole, the self-locking nut is installed in the thread area, a cotter pin hole is formed in the thread area, a cotter pin is arranged on the cotter pin hole to achieve positioning of the self-locking nut, and the tail clamping area is used for constant force clamping. The polished rod area is used for installing a single-lug connector, and the single-lug connector is used for being matched with a suspension connector of a spoiler to achieve installation of the spoiler. According to the invention, the problem of constant force connection in a narrow space or a scene without an operation space on one side is solved, and the reliability of the type of connection structure and the convenience of implementation and operation are remarkably improved.

The present disclosure relates to an ingot puller for producing a single crystal semiconductor ingot, comprising: a housing defining a growth chamber; the crucible is positioned in the growth chamber; an ingot receiving container defining an ingot receiving chamber connected to the growth chamber; and a feed assembly for filling the crucible with a semiconductor material. The feed assembly includes a discharger for containing the semiconductor material and movable in the ingot receiving chamber between a raised position and a lowered position. The unloader includes a bottom and a sidewall releasable from the bottom to allow the semiconductor material to exit the unloader. The feed assembly also includes a cotter pin selectively extendable into and retractable from the ingot receiving chamber. The cotter pin engages the unloader when extending into the ingot receiving chamber to release the unloader sidewall from the unloader bottom when the unloader moves toward the lowered position.

The utility model discloses an internal combustion locomotive exhaust shutter which comprises a bottom plate, and mounting seats are fixedly mounted on the periphery of the bottom plate. Outer frames are symmetrically installed on the surface of the bottom plate, connecting rods are connected to the interiors of the outer frames in an attached mode, fan blades are connected to the surfaces of the connecting rods in a penetrating mode, grooves are symmetrically formed in the two sides of the interior of each connecting rod, fixing rods are fixedly installed in the grooves, and the surfaces of the fixing rods are sleeved with compression springs. The surface of one side of the compression spring is fixedly connected with the groove; by arranging the buffer assembly, the impact force between the fan blades can be reduced, so that the service life of the fan blades can be prolonged to a certain extent, meanwhile, by arranging a connecting rod, a groove, a fixed rod, a compression spring, an extension rod, a moving groove and a cotter pin, falling of the connecting rod and the fan blades can be effectively avoided, and the service life of the fan blades is prolonged. And meanwhile, the fan blades can be detached and replaced more conveniently.

The utility model relates to the technical field of building structures, and discloses a simple anti-falling plate for a pin shaft of a wall-attached embedded part in order to solve the problem that the pin shaft falls off due to the fact that a cotter pin is easy to break in the prior art. Comprising a supporting plate used for being fixed to a wall, the supporting plate is perpendicularly connected with a connecting plate, a stiffened plate is arranged between the supporting plate and the connecting plate, the upper end of the connecting plate is fixed to a through-wall screw of the wall-attached embedded part, the other end of the connecting plate is connected with a baffle, a stiffened plate is also arranged between the baffle and the connecting plate, and the stiffened plate is connected with the connecting plate. And the tail end of the baffle plate is provided with a mousing hook which is bent upwards. The connecting plate is fixedly connected with the wall-attached embedded part, the stiffened plate is welded to enhance the strength and rigidity of all structures, the pin shaft is lifted up and clamped through the baffle and the anti-falling hook, anti-falling arrangement of the pin shaft is completed, and the emergency situations such as complete falling of the pin shaft can be avoided.

The application discloses a side-moving type hatch cover oil motor portable dismounting device, which comprises an oil motor supporting device and an oil motor base, the oil motor supporting device is installed on a hatch coaming, the oil motor base is provided with an oil motor body, the oil motor supporting device is used for supporting the oil motor base after moving out, the oil motor body is used for driving a cargo hatch cover, a plurality of groups of second lifting lugs are fixedly arranged on the reverse surface of the oil motor base, the second lifting lugs are used for lowering the oil motor body to a main deck position, and the oil motor supporting device is fixedly connected with the hatch coaming through a plurality of groups of split pins. The technical key points are as follows: the device has low manufacturing cost, is portable and does not occupy space on the ship, is convenient to operate, effectively solves the problem that the hydraulic motor cannot be hoisted in the case that there is no large crane on the ship, replaces the traditional scheme of calling a large shore-based crane, realizes self-dynamic transfer of the oil motor, guarantees maintenance efficiency, and saves the cost of renting a large crane.

The utility model discloses a vacuum pump lifting carrying trolley which comprises a main body and further comprises a hoisting assembly, the hoisting assembly comprises a hoisting supporting frame, a hoisting pin is arranged on one side of the hoisting supporting frame, a cotter pin is installed on one side of the hoisting pin in an inserted mode, and a hand-drive block is hung on one side of the hoisting pin. According to the lifting carrying trolley, the vacuum pump is placed at a large number of various equipment parts and cannot be directly moved out, the vacuum pump is lifted to the lifting carrying trolley body through the lifting assembly in a limited space, the vacuum pump fixing assembly fixes the vacuum pump on the lifting carrying trolley body, and then the vacuum pump is lifted to the height of the roller guide rail assembly; the vacuum pump is fixedly connected with the roller guide rail assembly, so that overall inclination possibly caused by too narrow width of the trolley is prevented, then the lifting carrying trolley body is moved, and the vacuum pump is moved out of a narrow space.

This utility model discloses a mechanical buckling tool, comprising, from top to bottom, an upper connector, a locking sleeve, an adjusting sleeve, an upper positioning ring, a switching assembly, an anchoring sleeve, a friction sleeve, a power outer cylinder, a drop sleeve, and a lower connector. A power spindle is provided in the central cavity of the lower part of the upper connector, the locking sleeve, the adjusting sleeve, the upper positioning ring, the switching assembly, the anchoring sleeve, the friction sleeve, and the power outer cylinder. The switching assembly includes a wing plate bed, on which multiple sets of dog wing plates are evenly distributed on the outer wall surface of the middle part. Each dog wing plate includes a fixed wing plate. One side of the fixed wing plate is connected to a pin hole on the outer wall surface of the wing plate bed through a second pin, and the other side of the fixed wing plate is connected to one side of a supporting wing plate through a third pin. Cotter pins are provided at both the upper and lower ends of the other side of the supporting wing plate. The cotter pin at the upper end is inserted into the upper positioning ring, and the cotter pin at the lower end is inserted into the anchoring sleeve.

The utility model belongs to the technical field of mechanical manufacturing and machining, and provides a rocker arm structure which comprises a rocker arm seat, a rocker arm and a rocker arm shaft. One end, far away from the rocker arm seat, of the rocker arm shaft is provided with an external thread and is in threaded connection with a nut; one end of the rocker arm is provided with a mounting hole, the rocker arm rotatably sleeves the rocker arm shaft through the mounting hole, and a bearing is arranged between the rocker arm and the rocker arm shaft. In the rocker arm structure, the rocker arm is rotationally connected with the rocker arm shaft through the bearing, traditional sliding friction is replaced, the rotating resistance of the rocker arm is reduced, and steering is more convenient. The rocker arm seat and the rocker arm shaft are integrally formed through die forging, the size of a forged piece is accurate, the machining allowance is small, and the forged piece has high mechanical strength after thermal refining. And the circlip for the hole is additionally arranged in the mounting hole, and the slotted nut is matched with the cotter pin, so that the bearing can be prevented from falling off, and the stability is improved. The dustproof cover is additionally arranged at the outer end of the mounting hole to prevent dust and muddy water from entering, the sealing performance of parts is better, and the service life of the parts is prolonged.

The utility model discloses an insulator split pin assembly device, including insulator, split pin and pin shaft, the end of insulator is equipped with the connecting lug, and the pin shaft is inserted on the connecting lug, the device is used for the supplementary split pin assembly to the pin shaft, the device includes support frame, support seat and limit pin, support seat is fixed on the support frame, and the insulator is supported on the support frame, and the connecting lug is supported in the support seat, and the limit pin is inserted on the support seat, and the limit pin is inserted into the pin hole of pin shaft by moving the limit pin, and the circumference positioning of pin shaft is realized. The cooperation of support frame, support seat and limit pin, effectively solve the existing technology in the insulator split pin assembly problem, improve the assembly efficiency and precision, reduce the labor intensity of operating personnel, have good practicality and reliability.

The invention discloses a damping spacer and a preparation method thereof, and relates to the technical field of alloys. The damping spacer comprises a frame, a wire clamp and two fixedly-connected rotating shafts, the frame is connected with the wire clamp through the fixedly-connected rotating shafts, and the two fixedly-connected rotating shafts are located on the two sides of the frame respectively and are symmetrically arranged; the wire clamp comprises a wire clamp cover plate, a wire clamp main body and a rotating shaft; the wire clamp cover plate and the wire clamp main body are connected through the rotating shaft; the damping spacer further comprises a limiting shaft used for limiting the wire clamp body to rotate around the fixed connecting shaft and a nut used for fixing the wire clamp body, the frame and the fixed connecting shaft. A locking pin is arranged on the wire clamp main body, and the end part of the locking pin is connected with a cotter pin; the damping spacer is made of titanium alloy. The damping spacer has the advantages of being high in strength and corrosion resistance, and can solve the problems that an existing line fitting is insufficient in reliability and short in service life under the extreme environment working condition.

The utility model provides a special assembly hanger for a transmission case of a special vehicle, which comprises a left hanger assembly, a right hanger assembly, a lifting lug, a chain and a lifting ring, the left hanger assembly and the right hanger assembly are respectively provided with a bending structure, and transmission case fixing holes used for being sleeved on transmission case support lugs are processed on the lower half parts of the left hanger assembly and the right hanger assembly; the upper half portions of the left hanging bracket assembly and the right hanging bracket assembly are arranged in a crossed mode and connected through a rotating assembly, the top ends of the upper half portions are connected with lifting lugs through lifting lug fixing pin shafts and cotter pins respectively, each lifting lug is connected with a chain, the top ends of the two chains are connected with the same hanging ring, and the hanging ring is used for being connected with a hanging hook. The left and right hanging bracket assemblies are rigid hanging brackets, so that the transmission case can be effectively prevented from inclining during hanging, the problem that the posture of the transmission case is unstable when a general hanging tool is used for assembling is solved, the assembling efficiency is improved, the assembling potential safety hazard is reduced, and the hanging tool is simple in overall manufacturing, easy to carry, easy to modify, high in matching degree and convenient to operate.

The utility model discloses a rapid cotter pin supplementing device suitable for live working of a high-voltage transmission line, which comprises an operating rod, an operating rod connecting device and a picture receiving screen, one end of the operating rod is connected with the operating rod connecting device, a visual camera assembly is arranged on the operating rod connecting device, and the picture receiving screen is connected with the visual camera assembly. The other end of the operating rod connecting device is provided with a clamping assembly, the top of the clamping assembly is connected with an R pin, the device is fixed to the head of the insulating operating rod, it is ensured that the cotter pin is aligned with the screw hole through direction adjustment, the pin installing head is triggered to be released when the cotter pin is inserted into the screw hole, installation is completed, real-time feedback is conducted through a high-definition camera, and the operation rod is fixed to the head of the insulating operating rod. An operator can accurately observe the position relation between the hole position and the cotter pin, the rapidness and the safety of operation are ensured, the defects of the existing hot-line work tool in direction control and installation precision are overcome, the efficiency and the safety of hot-line work are remarkably improved, and the hot-line work tool has a good market application prospect.