136 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.

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 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.

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.

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 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 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 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.

The application discloses a flat split pin quick assembling tool for an open wagon door, and belongs to the technical field of split pin assembling. The tool comprises a supporting seat and a handle, the top of the supporting seat is provided with a round pin sleeve, one end of the round pin sleeve is provided with a fixing shaft, one end of the fixing shaft is rotationally connected with the handle, the supporting seat below the other end of the round pin sleeve is provided with an arc-shaped sleeve, the top of the arc-shaped sleeve is provided with an opening aligned with the round pin sleeve, the periphery of the handle is provided with a sliding sleeve connected in a sliding mode, and one end of the sliding sleeve is provided with an arc-shaped opening device aligned with the arc-shaped sleeve. The arc-shaped opening device is clamped at the long side / short side of the opening end of the flat split pin by being slid downward, and then the handle is rotated upward or downward to realize split packing and compression of the flat split pin, the whole opening packing of the flat split pin is realized, the whole process can be completed in only 10-20 seconds, the design intention of fast packing, time and labor saving and safe operation is achieved, and the working efficiency is greatly improved.

The utility model discloses a dispensing device for sensor processing, which comprises a workbench and a containing box, the lower end of the containing box is fixedly provided with a glue injection pump through a pipeline, the output end of the glue injection pump is fixedly provided with a dispensing head through a pipeline, and the surface of the dispensing head is fixedly provided with a lifting plate. An electric push rod is fixedly mounted at the top of the lifting plate, and a supporting transverse plate is fixedly mounted on the surface of the electric push rod. Through the arrangement of the positioning tray, the pressure sensor needing to be dispensed and packaged can be positioned and supported, through the arrangement of the electric push rod, the lifting plate, the dispensing head, the glue injection pump and the containing box, the purpose of dispensing and packaging the pressure sensor is achieved, and through the arrangement of the supporting seat, the blocking frame, the cotter pin hole, the pin column and the containing hole, the pressure sensor can be conveniently and rapidly dispensed and packaged. And the positioning tray can be limited and fixed, and the situation that subsequent dispensing operation is affected due to displacement and shaking of the positioning tray is avoided.

The utility model discloses an automatic opening bolt for a double-leaf fireproof door of an evacuation passage. The safety bolt is characterized by mainly comprising a screw, a bolt plate, a bolt rod guide frame, an extrusion column, a short spring, a telescopic rod, a pin shaft, a cotter pin, a connecting rod, a fixed connecting rod bolt column, a nut, a bolt rod a, a lengthened bolt rod connecting lock nut, a bolt rod b, a long spring, a bolt front cover plate, a cover plate positioning block, a cover plate fixing screw, a bolt rear cover box and a door leaf anti-collision protection plate. Screws are fixed on the door leaf anti-collision protection plate; the manual bolt has the advantages that the functions of automatic closing and automatic opening are achieved through local improvement on the basis of an existing manual bolt, part of original molds can still be used, the structure is simple and practical, the connection mode and the connection size of the manual bolt and a door leaf in the current market are not changed, application is wide, and use is easy and convenient; and the bolt is easy to master and completely meets the functional requirements of new national execution standards on the bolt.

Provided is a cylinder sealing plug installation tool. A thermal power plant is high in equipment integration and tight in component distribution, so that the maintenance space of an air cylinder is narrow, a fallen sealing ring is not easy to install, repeated extrusion needs a lot of time, arms are easy to feel tired and numb, and personal injuries such as collision are easy to occur. The air cylinder fixing device comprises a fixing frame, a threaded hole is formed in the fixing frame, a fixing rod penetrates through the threaded hole to clamp an air cylinder and is fixed through a nut, a connecting pipe is welded to the fixing frame, and a lead screw penetrates through the connecting pipe and is fixed through a large gasket and a cotter pin. Threads of the lead screw are meshed with threads on a guide block of the transmission assembly, a holding and pushing clamp of the transmission assembly is connected with a closed arc plate in an inserted mode and installed on an air cylinder rod of the air cylinder, and the air cylinder sealing plug installation tool is provided with a ratchet wheel handle. The tool is used for installing the cylinder sealing plug.

The application discloses a ground wire porcelain insulator with fixed discharge gap and relates to the technical field of power transmission and distribution equipment.The ground wire porcelain insulator comprises a porcelain piece, an iron cap fixedly connected to the upper side of the porcelain piece, a steel foot fixedly connected to the lower side of the porcelain piece, a clamp sleeved with the outer side of the iron cap, an upper electrode installed on the outer side of the clamp through a bolt assembly, a lower electrode installed on the lower side of the steel foot through the same bolt assembly, a groove type upper side of the iron cap, a cylindrical pin and a split pin installed in the iron cap, two groups of protrusions fixedly connected to the side wall of the steel foot and a plurality of groups of gaskets adhered to the outer side of the steel foot.The recess on the outer wall of the iron cap not only considers the aesthetic property, but more importantly, the practicality.The reasonable depth and width of the recess ensure that the mechanical strength of the iron cap is not affected, and the design greatly enhances the overall stability and reliability of the insulator.

A heating device for locally heating the wall of an injection mold cavity, the heating device comprising: a base plate; an actuator located on the base plate and for performing linear motion; a heated mold plate connected to and driven by the actuator to perform linear motion in a direction toward and away from the wall of the injection mold cavity; wherein the heated mold plate is located below the base plate and the actuator is located on top of the base plate, and wherein the base plate includes an opening through which a pin extends for transmitting linear motion from the actuator to the heated mold plate.

The utility model relates to a single body of a moving blade and fixed blade combined shearing type inter-row cultivator, which belongs to agricultural machinery, and is characterized in that a single body shaft is fixed on the lower end of a single body frame, a left inner spoke, a left moving blade spoke and a right inner spoke, a right moving blade spoke are rotatably installed on the left and right sides of the single body shaft, a left moving blade annular seat plate and a right moving blade annular seat plate are fixed on the left and right inner spokes respectively, a left moving blade and a right moving blade are supported and installed between the left inner spoke and the left moving blade annular seat plate and between the right inner spoke and the right moving blade annular seat plate respectively, and front and rear left fixed blades and front and rear right fixed blades are fixed on the left and right sides of the single body shaft through a left sleeve, a split pin A, left fixed blade inner and outer seat plates and a right sleeve, a split pin B, right fixed blade inner and outer seat plates respectively. The single body has the advantages of scientific design principle, novel, unique and reasonable structure, good weeding effect, high weed mortality, no grass entanglement and soil compaction, high operation efficiency and low seedling damage rate.

This invention relates to a test device and method for the dynamic separation mechanism of a UUV and its payload. The device includes an upper base and a lower base mounted vertically, fastened together at their sides with fasteners. A central positioning pin is installed through a central hole, with cotter pins inserted at both ends. A front support frame and a rear support frame are fixed to each other at intervals on the upper surface of the base. A tail support frame is installed on the upper outer side of the rear support frame, and an electromagnet is fixed inside it. A first slot is provided on the upper part of the front support frame, and a horizontal pad is provided on the upper inner side of the rear support frame. A second slot is provided above the rear support frame, and a third slot is provided on the pad. Each slot engages with the UUV body. The base is mounted on an underwater vehicle, which moves horizontally along a track within a water tank. This device enables the UUV to launch its payload while in free motion. Combined with appropriate optical and internal measurement methods, the motion characteristics during the dynamic separation process can be obtained.

The utility model discloses an insulating fixed connecting device for a hanger rod of a self-baking type electrode holder of a yellow phosphorus furnace, which comprises an upper-layer insulating stainless steel plate and a lower-layer insulating stainless steel plate which are respectively welded with a stainless steel lifting lug to form a body. The lifting lug is hinged with the lifting sling chain and the self-baking type electrode holder suspender through a stainless steel pin shaft, a lifting lug HP-5 mica pad and a cotter pin respectively; and the middle HP-5 mica plate is fixed with the stainless steel plate through the double-end stud, the steel plate HP-5 mica pad, the spring washer and the nut to form an integral structure. According to the utility model, insulation, antimagnetic and anti-conduction are realized in a high-temperature smelting environment, an electric breakdown path is blocked, vibration impact is reduced through design, the structural stability is improved, and the maintenance cost is reduced. The service life of the device is remarkably prolonged, and equipment damage caused by electric conduction and vibration is reduced.