726 results about "Shackle" patented technology

The present invention is directed to a padlock including a body configured to house a combination mechanism and a key mechanism, the combination mechanism configured to allow operation of the padlock from a locked mode to an unlocked mode, and the key mechanism configured to allow operation of the padlock from the locked mode to an unlocked mode, a shackle having a short-leg and a long-leg, a key mechanism indicator configured to at least partially extend out of the body of the padlock when the padlock is operated to the unlocked mode by the key mechanism, and a latch configured for operative engagement with the key mechanism indicator to retain the key mechanism indicator at least partially extended out of the body of the padlock until the padlock has been operated from the locked mode to the unlocked mode by the combination mechanism.

Embodiments of the present technology include a circuit breaker with a tripping mechanism. The tripping mechanism includes a latch and a latch lever, according to some embodiments. The latch lever may be coupled to a toggle via a joint arm in some embodiments. The latch lever may also be coupled to a change lever via a buckled shackle. In some embodiments, the buckled shackle includes a first section, a second section, and a bend between the first section and the second section.

A shackle apparatus has a bow having first and second legs, with first and second aligned holes through the legs, a capture head affixed to the bow outside of the second leg, aligned with the second hole, the capture head comprising metal balls in radial channels, and an anchor pin adapted to fit through the first and second holes and into the capture head, the anchor pin having a circumferential groove proximate an end entering the capture head. Placing the anchor pin through the first and second holes and into the capture head causes the capture head to move the balls radially into the circumferential groove in the anchor pin, locking the anchor pin in the bow.

A lockout clip for carrying padlocks used to lockout equipment includes an anchor section with a first side and a second side opposite the first side, a top edge, a bottom edge distal to the top edge, a first side edge, and a second side edge distal to the first side edge The lockout clip includes a ridge section coupled to the first side of the anchor section and extending away from the first side of the anchor section and is connected to the first side in a direction from the top edge to the bottom edge. The ridge section includes two or more lock openings. Each lock opening is sized for a shackle of a padlock used to lockout access to equipment, and each lock opening of the two or more lock openings is oriented perpendicular to the ridge section. The anchor section includes a clip and / or a magnet.

The invention discloses a shackle hydraulic system for an underground drill rig and a control method. The shackle hydraulic system is provided with an oil tank and a main oil pump; the rotary motor oil way and the feeding oil cylinder oil way are communicated with the main oil pump; proportional directional valves for controlling the transmission direction of hydraulic oil are arranged on an oil inlet path and an oil return path of the rotary motor oil path; the oil inlet path and the oil return path are respectively connected between the proportional directional valves and the rotary motor; a high-pressure selection valve is arranged in the oil path; the hydraulic control reversing valves are arranged on an oil inlet way and an oil return way of the oil way of the feeding oil cylinder, and the two-position two-way valves are arranged on the oil inlet way and the oil return way respectively. And the high-pressure selection valve is respectively and hydraulically communicated with the hydraulic control reversing valve and the two-position two-way valve to control the opening and closing of the hydraulic control reversing valve and the two-position two-way valve. The problem that the drill rod is easily damaged due to the fact that the feeding speed and the rotating speed are not matched during screwing on and screwing off of the drill rod is solved through accurate control of the hydraulic system, meanwhile, the automation level of the drilling machine is improved, and the labor intensity of workers is relieved.

An electronic lockbox having a reversible shackle that exhibits two pairs of angled bends so that the lockbox can be mounted on door handles or door knobs, with the angled bends facing toward the rear of the lockbox, or by reversing the shackle, the angled bends can be arranged to be facing toward the front of the lockbox.

A full-unit lifting method for a quayside container crane includes calculating an overall center position of gravity of the quayside container crane full-unit; estimating a lifting height and a floating amplitude required by a main hook of a floating crane according to a water level differential at a dock and a height of the quayside container crane full-unit; selecting the floating crane and obtaining detailed parameters thereof according to basic lifting conditions of the floating crane; selecting a type of the main hook according to a weight of the quayside container crane full-unit, checking whether an interference between the boom of the floating crane and the front boom occurs, and determining an inclination angle of the floating crane during lifting; calculating a load on the lifting wire rope and selecting the lifting wire rope and a shackle; making preparations before lifting; and performing lifting at the dock.

A rotating, self-aligning device (“D-ring assembly”) mounted on or associated with a recovery vehicle for supporting and pulling a load, and a method of using this device, which includes an outer housing rigidly attached to the recovery vehicle; and a rotating base plate, with a bearing for supporting a shackle. The device automatically self-aligns along a centerline of the shackle relative to the direction of the load.

The invention discloses a crane shackle for hoisting construction of a large pipe truss, and relates to the technical field of crane shackles. Comprising a shackle mounting piece, a rotation control piece is mounted on the shackle mounting piece, and a stop plug connector is mounted on the shackle mounting piece; the rotation control piece is used for preventing the shackle mounting piece from being excessively screwed; an anti-falling safety part is mounted on the rotation control piece; the anti-disengaging safety part is located on the side face of the shackle installation piece. A connecting limiting piece is mounted on the shackle mounting piece; a shackle detection piece is mounted on the connection limiting piece; the problems that according to an existing crane shackle for hoisting construction of the large pipe truss, a bolt cannot be tightened conveniently, and the service life of the shackle cannot be known conveniently are solved. The backstop plug connector is matched with the rotation control piece, so that the shackle bolt can be prevented from being excessively screwed, the use safety of the structure can be improved, and the situation that due to the fact that the shackle bolt is excessively stressed, tiny deformation is generated, and thread seizure is caused is reduced.

The invention relates to the technical field of ocean unmanned vehicles, and particularly discloses a wave glider laying and recovery system and a collaborative operation method thereof.The wave glider laying and recovery system is composed of a transferring laying device, a tail buoy, a flat cable recovery device and a salvage recovery rod; the moving, transporting and laying device adopts a modularized quick-release structure and a positive and negative thread screw collinear self-adjusting positioning mechanism and is matched with a hand-pulled spring shackle to achieve five-minute zero-assembly laying, and a tail buoy achieves floating body electric control separation through a waterproof steering engine driving lead screw nut transmission and a guide column-guide sleeve conical self-centering structure. The flat cable recovery device is designed based on an eccentric cam self-locking principle and a progressive clamping mechanism, and is combined with a three-stage hoisting strategy to complete efficient and lossless recovery of the flexible flat cable of 7-8 meters; the invention further discloses a collaborative operation method of the wave glider laying and recovery system, which comprises the processes of moving and positioning, device separation, hand pulling and releasing and underwater unfolding in a laying stage, and a time sequence linkage strategy of buoy separation, positioning and dragging and graded hoisting in a recovery stage.

The invention discloses an intelligent clamping shackle device for an underground drill rig and a control method. The intelligent clamping shackle device comprises a clamping device, a shackle device body, a connecting base and a forcing device. The clamp holder and the shackle device are fixed on the connecting base; the forcing device is a double-rod double-acting forcing oil cylinder with a central through hole and is concentrically mounted in front of the shackle device; by detecting the spatial position of the slip, the drill rod is adjusted, and righting of the upper buckle of the drill rod is completed; and through the forcing device, the torque required by shackle is effectively reduced. According to the invention, the automatic control of the clamping and shackling processes of the clamping device can be realized, the shackling brake torque can be reduced, the stress condition of the clamping shackling device can be improved, the lightweight of the clamping shackling device is facilitated, and the early warning of the service life of the slip can be carried out in real time.

A bottom opening password lock comprises a lock case and a liner arranged in the lock case as well as a shackle connected with a top of the lock case, a lower cover is arranged on a lower side of the liner, and a locking mechanism and a password assembly are installed between the liner and the lower cover; the locking mechanism comprises a first bolt and a second bolt which are arranged correspondingly as well as a bolt pin arranged between the first bolt and the second bolt, and a bolt spring is installed on the bolt pin; the shackle is pressed down to make the forcing push head push clutch sleeves to move axially, thus the clutch sleeves and password wheels can be separated to realize code adjusting. The utility model is simple in structure and convenient to use.

The present invention relates to the technical field of submarine cables, and in particular to a submarine cable armoring steel wire anchoring device, comprising an anchoring disc base. A plurality of conical anchoring holes are formed in the outer ring of the anchoring disc base in an annular configuration; a conical clamp is slidably mounted in each conical anchoring hole; a cable armoring steel wire penetrates through the inner ring of the conical clamp; a lug plate is provided in the middle of the side of the anchoring disc base close to the large ends of the conical anchoring holes; a through hole is formed in the middle of the lug plate; a stud bolt is slidably mounted in the through hole of the lug plate; a U-shaped shackle is sleeved on the outer ring of the stud bolt; and locking nuts are threadedly mounted at both ends of the stud bolt. The gravity of a submarine cable is dispersed to multiple steel wires, and each steel wire is anchored, thereby improving the strength of anchoring of the submarine cable, reducing the probability that the submarine cable end anchoring position falls off, and greatly increasing the laying distance of the submarine cable.

The invention relates to the technical field of torque measurement, in particular to a device for measuring screwing-on and screwing-off torque and a measuring method thereof.The device comprises a supporting base assembly, and an active continuous forward and reverse rotation assembly is arranged at one end of the supporting base assembly and used for firmly clamping an internal thread workpiece and enabling the internal thread workpiece to continuously rotate forwards or reversely; the passive clamping assembly is arranged at the other end of the supporting base assembly and used for firmly clamping the external thread workpiece; the passive clamping assembly comprises a connecting and fixing plate, and the side wall of the connecting and fixing plate is rotationally connected with a clamping mechanism assembly. A first weighing sensor and a second weighing sensor. According to the invention, the measuring shafts of the first weighing sensor and the second weighing sensor are vertically and fixedly connected with the clamping mechanism assembly, so that the torsion measured by the first weighing sensor and the second weighing sensor is always perpendicular to the moment arm, the interference of non-tangential force on the real value of the torsion is reduced, and the accuracy of the measured value of the torsion is improved.

A guard apparatus for guarding a latch from tampering when a padlock secures it in a closed position includes a panel with a hole extending therethrough for receiving the padlock. The hole is shaped such that a perimeter edge of the hole engages a body of the padlock when a shackle of the padlock is received through the hole. The panel is positionable to cover the latch when the shackle is received through the hole and secured to the latch.

An anti-theft boarding method for an unmanned platform comprises the steps that a boarding platform, a winch drum and a rope ladder are included, a winch remote controller and a remote control device are wirelessly connected, after connection, a rope ladder lowering button is clicked, when the rope ladder is lowered to be enough for people to climb, a brake button is pressed down, related operators connect a shackle on the rope ladder with a fastening eye plate, and then the rope ladder is released. After the lower end of the rope ladder is fixed, a recovery button is clicked, when the rope ladder is fixed and tensioned between the winch and the fastening eye plate, recovery is stopped, and after checking that the state of the rope ladder is correct, a worker climbs to the boarding platform along the rope ladder and walks to the unmanned platform deck from the boarding platform, and boarding operation is completed. When maintenance personnel need to embark the unmanned platform, the winch remote controller can be used for controlling the winch, the rope ladder is lowered to a designated position, the lower end is fixed through the eye plate, the upper end is fixed through the winch brake, and a safe and reliable boarding channel is provided for boarding personnel.

The invention relates to the technical field of commercial ships, in particular to a deck protection structure and method for a dumping sail, comprising a reinforcing member and a fixed sail rod, the top end of the fixed sail rod is provided with a movable shaft, the top end of the fixed sail rod is movably connected with a dumping sail rod through the movable shaft, and the dumping sail rod is internally provided with a sail body. The surface of the other end of the reinforcing piece is fixedly connected with a clamping plate, and an airbag body is arranged on the surface of the clamping plate. Through the clamping plates, the air bag bodies, the buffering side rings, the connecting chain buckles, the leaning balls, the rotating rings, the chains, the shackles and the hanging rings, the sail can be efficiently and safely toppled over, and when a toppled-over sail rod carries the sail body to topple over, the air bag bodies on the surfaces of the clamping plates can be directly guided; at the moment, the air bag body carries out contraction, tensioning and limiting operation of the chain, the shackle and the lifting ring on the surface of the clamping plate integrally through the side face buffering side ring, the connecting shackle, the leaning balls at the two ends and the rotating ring.

The utility model provides a steel plate lifting appliance which comprises a support lever, a plurality of lifting appliance components and a pressing device, the upper parts of the plurality of lifting appliance components are connected with the support lever, the lower parts of the lifting appliance components penetrate through the pressing device, and a steel plate is arranged between the lifting appliance components and the pressing device; the lifting appliance assembly comprises a first shackle, first connecting ropes, a second connecting rope, a first steel plate clamp and a second steel plate clamp, the first shackle is arranged on the supporting lever, the two first connecting ropes are symmetrically arranged on the first shackle, and the second connecting rope penetrates through the first steel plate clamp, the pressing device and the second steel plate clamp; and the end parts of the second connecting rope are respectively connected with the two first connecting ropes through two second shackles. The safety in the hoisting process is improved, the middle position of the second connecting rope is arranged at the pressing lever fixing buckle assembly in the using process, the pressing device applies downward acting force to a steel plate through the pressing pipe, the steel plate is kept straight, and the stability in the hoisting process is ensured.

A trailer coupler (e.g., gooseneck coupler) lock assembly includes a lock housing (housing), a retainer plate (retainer) and a coupler head case (case). The retainer and case each include a tab with a hole that extends through a window in the lock housing and is engaged by a shackle of a hidden shackle padlock, which locks the retainer and case to the housing. The housing and the case define a volume for receiving a gooseneck coupler head, with upper panels of the case and housing protecting and impeding removal of the gooseneck coupler head. A ball profile extends from a base of the case into a socket of the head of the coupler. The retainer and / or one or more notches in the lock housing secure a latching mechanism of the gooseneck coupler in a locked position, preventing disengagement of the ball profile.

The invention provides an anchor chain tensioning device and an anchor chain opposite-pulling type tension testing method, and relates to the technical field of ocean engineering.A passive anchor chain is connected through a shackle component on a tensioning main body, and a top end penetrating hole and a side end penetrating hole which are communicated are formed in the tensioning main body; the driving anchor chain penetrates through a penetrating channel formed by communicating the top end penetrating hole and the side end penetrating hole, the end of the driving anchor chain is connected with the ship crane, the ship crane drives the driving anchor chain to ascend and descend, the driving anchor chain is in an L shape, the check block is meshed with a chain ring of the driving anchor chain, the tensioning body is locked on the driving anchor chain, the tensioning body ascends and descends along with the driving anchor chain, and the ship crane drives the driving anchor chain to ascend and descend. The passive anchor chain is lifted together, the tensioning force in the horizontal direction is converted into the tensioning force in the vertical direction, the condition that the requirement for the capacity of an anchoring system of a main workboat is harsh is avoided, a floating crane with the lifting weight of kiloton level can easily conduct tensioning testing, tensioning testing of two anchor chains can be conducted at the same time, and the construction efficiency is greatly improved.

Screw-type ground anchors that include a shaft extending along a longitudinal axis and having a screw section configured to drive the shaft along the longitudinal axis into the ground when rotated about the longitudinal axis. A drive head is disposed at an upper end of the shaft and is axially aligned with the longitudinal axis. The drive head is configured to receive a rotational drive for rotating the shaft, and has at least one bore therethrough that is transverse to the longitudinal axis. The bore(s) receives an upper end of the shaft and / or a pivot pin that rotatably couples a lay-flat shackle to the drive head. The lay-flat shackle is operable to pivot between an upright position extending generally along the longitudinal axis to a lay-flat position extending generally transverse to the longitudinal axis.

The invention relates to the technical field of well drilling, and discloses a drill rod holding tool and a drill rod shackle device which comprise two block bodies, a rotating body and a pressing plate. The two block bodies can get close to each other or get away from each other, at least two grooves are formed in each block body, and openings are formed in the sides, close to each other, of the grooves in the two block bodies respectively. A rotating body is rotatably connected in each groove, a pressing plate is arranged on each rotating body, and the pressing plate partially extends out of the opening. When the drill rod needs to be held tightly, after the drill rod is placed between the two block bodies, the two block bodies are close to each other until the pressing plates on the rotating bodies in the grooves in the block bodies abut against the drill rod in an attached mode, and therefore the drill rod is held tightly. As for drill rods with different diameters, due to the fact that the rotating bodies can rotate in the grooves, after the pressing plates on the rotating bodies in the grooves in the block bodies abut against the drill rods, the rotating bodies rotate in the grooves, the pressing plates can abut against the drill rods in an attached mode, the drill rods are tightly held, the pressing plates do not need to be replaced, and operation is more convenient.

The electronic padlock includes an outer casing unit, a security module, a shackle unit, and a clutch unit. The outer casing unit includes a case body including an accommodation space, a rear base wall, and a rear cover plate. The rear base wall has a rear opening communicated with the accommodation space. The rear cover plate has a securing groove. The security module is mounted to the rear base wall, and has a swing member, and a rotatable button. The swing member is disposed in the accommodation space, and has a rotation restricting portion, and a hook portion engageable with the rear cover plate. The rotatable button extends into the accommodation space to connect the swing member, and is operable to rotate the swing member so that the hook portion of the swing member engages or disengages from the securing groove of the rear cover plate.

A padlock including a lock body, a fingerprint panel configured for operation of the padlock from a locked mode to an unlocked mode by using an electronic mechanism, a shackle having a long leg and a short leg, at least one bolt configured to engage with or disengage with the shackle, a cam to control the movement of the at least one bolt, a sloped-cam to control the movement of the cam, and a motor operatively coupled to the fingerprint panel and having teeth to control movement of the sloped-cam.

A pulley fastener for connecting with trailer shackles is provided, including a bolt. A pulley body is provided on an outside surface of the bolt, a first split shackle and a second split shackle are rotatably connected to the outside surface of the bolt and located on both sides of the pulley body, respectively. Both ends of the bolt are screwed with nuts for fixing the first split shackle and the second split shackle. By fastening the first and second split shackles, a closed structure and a semi open structure can be formed, which can facilitates the threading and fixing of ropes. The pulley body can provide higher traction efficiency and a safer operating environment by being compatible and cooperated with any shackles. And the multi angle adjustment function of the pulley body can reduce equipment damage caused by stress concentration, thereby enhancing the smoothness of the traction process.

An electronic lockbox uses a rotary actuator with multiple positions to achieve multiple locking states. Multiple positions of the actuator are detected, using optical sensors. The locking mechanism includes an outer sleeve and an inner cylindrical barrel that are coupled with torsion springs. The lockbox has a shackle and a key bin that are retained by the inner barrel when in the locked state, and the barrel can be rotated to either release the shackle or to release the key bin that typically holds a building's key.

An improved hasp for use with a hidden shackle pad lock. The hasp is manufactured of high strength steel and includes a tamper proof hinge with a domed pin. Further the shackle is mounted on high strength laminated steel mounting plates for additional security. The device includes a protective shroud for the hidden shackle lock with offset breaks in the shroud to prevent cutting the lock with a grinder. Further the configuration of the shackle allows use on openings that need to be secured, particularly those on boxes for public utilities (utility boxes).

The utility model relates to the technical field of lifting beam tools, in particular to a steel plate lifting beam tool which comprises a lifting beam main body and a plurality of groups of lifting components arranged on the lifting beam main body, the hoisting assembly comprises two hoisting belts and two horizontal plate hooks, the two hoisting belts are symmetrically installed on the two sides of the bottom of the hoisting beam body through first shackles, and the lower ends of the hoisting belts are connected with the horizontal plate hooks through second shackles; the two horizontal plate hooks of each group of hoisting assembly are oppositely arranged; a plurality of lifting lugs are symmetrically arranged at the top of the lifting beam main body, and at least one electromagnetic adsorption assembly is arranged at the bottom of the lifting beam main body. The steel plate hoisting device can be used for hoisting large steel plates, and the stability and the safety of steel plate hoisting are improved.