9484 results about "Wrench" patented technology

The present invention provides a micro-action ratchet wrench. a wrench has a main hole arranged thereon and a first and a second arc surfaces recessed in the wall surface of the main hole for correspondingly forming the first and second chambers, so that the centerlines of the first and second chambers intersect with the center of the main hole to maintain a set angle. The main hole is coupled with a ratchet. The ratchet has an outer connection portion and an outer teeth portion. The first and second chambers are correspondingly equipped with the first and second detents and the first and second springs. The first and second detents are provided with pawls, the first and second springs actuate the corresponding first and second detents, so that the pawls of the first and second detents can differentially engage the outer teeth portion of the ratchet through the set angle configuration.

The invention provides an accurate leveling mobile culture bed solving the problems that the traditional mobile culture bed is inconvenient to adjust in height and cannot ensure that the bed surface is absolutely level. The height adjustment and the level adjustment of the accurate leveling mobile culture bed are implemented through the height adjustment and the level adjustment of a rolling shaft support, and the height adjustment and the level adjustment of the rolling shaft support are implemented through rotating a hold-down nut on a screw rod by using a spanner to adjust the relative distance between the rolling shaft support and a gantry support and the self level of the rolling shaft support. Because the rolling shaft support and the gantry support are connected by a leveling screw and fixed by the nut, and the spacing adjustment and the level adjustment between the rolling shaft support and the gantry support are completed by the relative movement between the leveling screw and the hold-down nut, the continuous smooth adjustment between the rolling shaft support and the gantry support can be implemented to achieve the absolute level of the culture bed surface.

A manual hydraulic pipe expander operable by a single hand includes a handle with a gripping part operable by a single hand; a wrench provided rotatably relative to the handle; a plunger movable back and forth relative to the handle; a pipe expanding assembly including a pipe expanding tube, and a piston and a cone head provided in the pipe expanding tube; and an oil bag. The handle and the wrench are configured such that the projections of the wrench and the gripping part of the handle on a swinging plane formed by the wrench coincide with each other in a case that the swinging angle of the wrench is maximum. The manual hydraulic pipe expander operable by a single hand has the beneficial effect that it is more labor-saving.

The present disclosure is of an assembly between the drive head of a ratcheting wrench and a ratcheting wrench handle. A fastener is provided between the drive head and the handle. The drive head is pivotably connected to the handle by the fastener. The fastener is inserted through apertures of the drive head and the handle. The fastener is threaded at one end. An aperture of the handle is correspondingly threaded. The threads of the fastener and / or the handle do not extend the entire length of the aperture. The aperture with the thread may further have an unthreaded counterbore. The unthreaded counterbore mates with or abuts directly against an unthreaded portion of the fastener.

The invention relates to the technical field of hot chamber dismounting tools, and provides a hot chamber dismounting device and method for an active area of an irradiation device. The device comprises a fixed base used for placing an active area, a first limiting piece used for limiting the active area from moving upwards, a wrench used for screwing a sunk screw, a cross-shaped gripper used for grabbing a hanging connector, a second limiting piece used for limiting a single sample module from moving upwards, and a grabbing piece used for grabbing a positioning pressing plate. The single-hook tool is used for grabbing a separation blade; and the double-hook tool is used for grabbing a sample plate. According to the invention, each dismounting tool is combined with the manipulator, each part in the active area can be dismounted, and in addition, the pins at the bottom of the active area are inserted into the positioning holes in the fixed base, so that the active area can be prevented from toppling over in the operation process; meanwhile, the first limiting piece can limit the upward movement of the active area, and the second limiting piece can limit the upward movement of a single sample module, so that other parts are prevented from being taken away when a single tool is matched with a manipulator to disassemble a certain part, and the operation is more convenient.

The invention discloses a surgical instrument, and belongs to the field of medical instruments. The surgical instrument comprises a handle assembly, the handle assembly comprises a handle shell and a driving assembly located in the handle shell, and the driving assembly is suitable for providing driving force for an end executing assembly; the manual reset assembly is suitable for being matched with a clutch wrench, and the clutch wrench can be operated to release the transmission connection of the driving assembly through the manual reset assembly; the shielding shell is detachably arranged on the outer side of the handle assembly in a covering mode; the clutch transmission part is arranged on the shielding shell, the clutch transmission part comprises a clutch trigger rod, the near side end part of the clutch trigger rod is in transmission connection with the clutch wrench in an operable mode, and the far side end part of the clutch trigger rod is in transmission connection with the manual reset assembly in an operable mode. Manual resetting of the surgical instrument is safe and reliable, part of structures can be reused, and reused components make sterile contact with the outside in the manual resetting process.

The invention discloses a method for testing the connection strength of a bolt fastener, and relates to the technical field of fastening mechanical analysis. The bolt fastener connection strength testing method comprises the following steps: acquiring bolt data through a built-in sensor in an electric wrench, analyzing, classifying and transmitting the bolt data to a relay station to obtain corresponding response bolt data, then sequencing the response bolt data according to priorities, and uploading the response bolt data to a cloud platform according to network conditions; prompting operation is carried out through the cloud platform and is fed back to the relay station; the effect of improving the accuracy of the connection strength test of the bolt fastener is achieved, and the problem that the accuracy of the connection strength test of the bolt fastener is low due to discontinuous signals in the prior art is solved.

An impact wrench (10) including a rotary impact drive (22), wherein the rotary impact drive (22) has a drive shaft (28) running along a longitudinal axis (L), wherein the rotary impact drive (22) has a striker (30) arranged so as to be movable along the longitudinal axis (L), and an anvil head (32) which can be contacted by the striker (30) in a circumferential direction (U) relative to the longitudinal axis (L). The rotary impact drive (22) has at least one impact damper (40, 42, 44) which is configured to damp an impact of the striker (30) in a longitudinal impact direction (LR) parallel to the longitudinal axis (L), in particular on the anvil head (32). Thus undesired vibrations can be reduced or prevented, so that health risks associated with use of the impact wrench (10) can be reduced.

A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.

An aero-engine nut tightening machine arm device belongs to the technical field of aero-engine automatic assembly and comprises a rotary indexing assembly, a vertical lifting assembly, a central tightening assembly, a wrench overturning posture adjusting assembly and an auxiliary stability augmentation assembly. The rotary indexing assembly is connected with an aero-engine blade disc rotor through an external tool; the vertical lifting assembly is arranged above the rotary indexing assembly; the pivot tightening assembly is arranged in the middle of the vertical lifting assembly; the wrench overturning posture adjusting assembly is arranged between the vertical lifting assembly and the pivot tightening assembly. The auxiliary stability augmentation assembly is arranged at the bottom of the central tightening assembly. Compared with a traditional manual nut fastening process, the aircraft engine nut tightening machine arm device has the advantages that the labor intensity of workers can be greatly reduced, the execution of the nut fastening process is completed in an automatic mode, the consistency of the assembly quality process is effectively improved, the nut fastening torque precision is high, and the production efficiency is improved. And the production and assembly efficiency is further improved.

The invention discloses a bolt fastening device and positioning method for a wind power tower. The device comprises a rack, a power unit, a positioning unit and a fastening unit, wherein the power unit, the positioning unit and the fastening unit are arranged on the rack; the power unit comprises a magnetic wheel and a driver, and the driver can drive the magnetic wheel to rotate; the positioning unit comprises a laser sensor, and the laser sensor can position the bolt position and the nut angle; the fastening unit comprises a lifting assembly and a rotating assembly, the lifting assembly comprises a sliding block and a second driver, and the second driver can drive the sliding block to ascend or descend; the rotating assembly comprises a base, a sleeve, a hydraulic wrench and a third driver, the base is fixedly connected with the sliding block, the sleeve is rotatably arranged on the base, and the third driver can drive the sleeve to rotate. According to the wind power tower drum, after the position of the bolt and the angle of the nut are recognized through the sensor, the actions such as automatic alignment and screwing of the sleeve can be achieved, the action precision is high, the labor cost is greatly reduced, and the working efficiency is improved.

The utility model belongs to the technical field of wind turbine generator wind meters, and particularly relates to a detachable wind turbine generator wind meter which comprises a supporting plate, third sliding grooves are symmetrically formed in the top of the supporting plate, second sliding grooves are formed in the two sides of the third sliding grooves, and first sliding grooves are formed in the sides, away from the third sliding grooves, of the second sliding grooves. The tops of the two third sliding grooves are provided with an anemograph and an anemoscope correspondingly, fixing rods are fixedly installed at the bottoms of the anemograph and the anemoscope correspondingly, the bottom ends of the fixing rods extend into the third sliding grooves, limiting grooves are formed in the two sides of the fixing rods correspondingly, the two limiting grooves communicate with the two second sliding grooves correspondingly, and first limiting blocks are slidably installed in the second sliding grooves. One end of the first limiting block extends to the limiting groove, and the other end of the first limiting block is fixedly provided with two first springs fixed to the inner wall of the second sliding groove. When the whole device is used, bolts and wrenches do not need to be used in the process of installing and disassembling the anemograph and the anemoscope, the load of workers is relieved, and the device is convenient to use.

Implementations described herein relate to actuation systems, wrench tools, and methods for making up and breaking out tubular connections. An actuation system for iron roughnecks includes an actuation assembly. The actuation assembly includes a carriage including a set of carriage rails, and a support frame. The support frame includes a set of support rails. The actuation system includes one or more actuators configured to extend and retract the carriage along a first direction. At least one of the one or more actuators is coupled between a carriage flange of the carriage and a support flange of the support frame.

An adjustable external fixator and fixator kit for angle correction on a bone comprising a head element, arm, shaft element, and adjustable distraction element. Sizing inserts of different discrete sizes are provided and are installable between ends of the head element and ends of the arm. When installed, the fixator can fit patients of any size. The sizing inserts can be blocks or rails secured by threaded fasteners. The fixator and kit may also comprise a wrench releasably secured to the shaft element can be used to adjust a length of the distraction element. The fixator and kit may also comprise an angle measurement tool to measure angle of distraction.

The utility model discloses an outdoor dry-type transformer which comprises a dry-type transformer body and a base fixedly connected to the bottom end of the dry-type transformer body, the bottom of the base is rotationally connected with a threaded column through a shaft seat, the threaded column penetrates through an adjusting frame and is in spiral connection with the adjusting frame, and the bottom end of the adjusting frame is welded to the surface of a bottom plate. Telescopic frames are fixedly connected to the positions, close to the corners, of the upper surface of the bottom plate. The base plate is fixedly installed on the supporting face, the threaded column is axially rotated relative to the adjusting frame through tools such as a wrench according to the requirement for the installation height of the dry-type transformer body, the base drives the dry-type transformer body to stably move in the longitudinal position under the assistance of the shaft seat and the limiting effect of the telescopic frame, the moving process is smooth and stable, and the application range is wide. The telescopic frame is fixedly connected with the base through the supporting frame, the supporting frame reinforces the base, the telescopic frame pushes and pulls the base to move longitudinally, and after adjustment is completed, a locking hand wheel of the telescopic frame is screwed to fix the height.

The invention relates to the technical field of drill rod dismounting, in particular to drill rod dismounting equipment for drill rod equipment, which comprises a shell, and two clamping pieces which can rotate and are symmetrically arranged are mounted in the shell; the shell is internally provided with a plurality of lifting pieces, and the plurality of lifting pieces are located below the clamping piece; a pushing piece capable of lifting the lifting piece is mounted on the shell, and the pushing piece is located between the clamping piece and the lifting piece; the shell is provided with an annular opening, a rotating piece is installed in the annular opening and located between the two clamping pieces, and a cleaning piece capable of rotating is installed in the rotating piece. In the using process of the device, two drill rods can be separated through one worker, meanwhile, the separated drill rods can be lifted, the worker can separate the two drill rods conveniently, the worker does not need to hold a wrench by hand for operation, work of the worker is further facilitated, and the working efficiency of the worker is improved. And the working efficiency of workers is indirectly improved.

The invention relates to the technical field of clip-on ammeters, and discloses an intelligent clip-on ammeter which comprises a clip-on ammeter body, a clip-on head is rotatably connected in the clip-on ammeter body, a wrench is fixedly connected to the left side of the clip-on head, and a fixing mechanism is arranged on the periphery of the clip-on ammeter body. The clamp-type ammeter comprises a clamp-type ammeter body, a fixing mechanism is arranged at the bottom of the clamp-type ammeter body, a handheld mechanism is arranged at the rear side of the clamp-type ammeter body, a limiting mechanism is arranged at the bottom of the fixing mechanism, and the fixing mechanism comprises a fixing assembly and a pressing assembly. When the clamp-on ammeter is used, the clamp-on ammeter body is fixed under the action of the base, the fixing frame and the concave frame, and the connecting shaft is connected with the fixing sleeve, so that the clamp-on ammeter body can be lifted under the action of the supporting rod, and the clamp-on ammeter body can measure the current of a cable at a high position.

The invention discloses a double-acting integrated hydraulic nut and a hydraulic nut system. The double-acting integrated hydraulic nut comprises a cylinder body, a piston, a cylinder cover, a locking nut, an outer hexagon head bolt and a locking sleeve. A mounting plane attached to a workpiece is arranged at the bottom of the cylinder body, and the piston is arranged in an inner cavity of the cylinder body in an axial sliding mode. The outer hexagonal head bolt sequentially penetrates through the axial through hole of the piston and the bottom of the cylinder body, and the threaded end of the outer hexagonal head bolt is meshed with a workpiece in a threaded mode. The cylinder cover is arranged at the top of the cylinder body; the locking nut is in threaded connection with the piston rod and is in contact with the top surface of the cylinder cover; a pressurizing oil port connected with a hydraulic pump station is formed in the side wall of the cylinder body. The hexagonal head of the outer hexagonal head bolt is sleeved with the locking sleeve which is in driving connection with the electric wrench. Due to the fact that the bearing seat bolts are compact in layout and large in bolt pre-tightening force requirement, the experiment platform can be rapidly mounted and dismounted, and working time and cost are greatly reduced.

A swing wrench includes a driving head, a handle, a pressing element and a positioning element. The driving head has a first protruding ear structure, wherein an inner surface of the first protruding ear structure has a smooth portion and a toothed portion. The handle has two second protruding ear structures, wherein the first protruding ear structure is disposed between the second protruding ear structures. The positioning element is engaged with the pressing element, and the pressing element and the positioning element are disposed through the first protruding ear structure and the second protruding ear structures.

The invention discloses a steam turbine rotor coupling bolt dismounting device and a working method in the technical field of hardware tools, the device comprises a cross beam, a fixed supporting seat is connected to the left end of the cross beam, an inner hexagonal hole seat is fixedly arranged on the right side face of the fixed supporting seat, and a movable supporting seat and a fixed mounting seat are arranged at the right end of the cross beam; the movable supporting seat is located on the left side of the fixed mounting seat, an inner hexagonal hydraulic wrench is arranged on the left side face of the movable supporting seat, a hydraulic telescopic cylinder is mounted on the fixed mounting seat, and the telescopic end of the hydraulic telescopic cylinder is in driving connection with the movable supporting seat. The bolt main body can be recovered from the bolt hole of the coupling and is convenient to detach, so that the detaching efficiency of the coupling connecting bolt is improved, and the bolt main body is not damaged.

The invention discloses a lightning arrester installation tool, and belongs to the technical field of distribution network operation and maintenance. The tool comprises a connecting clamping jaw, a limiting plate, a distance adjusting module, a clamping clamping jaw, a drainage wire clamp module and a base hook, wherein the connecting clamping jaw can be used for pre-assembling the lightning arrester on the ground, and an impact wrench is used for automatically tightening the lightning arrester; the limiting plate is accurately positioned through the guide long plate; the distance adjusting module adjusts height through an electric push rod and a guide rail; the clamping jaw is driven by the steering engine to clamp the lightning arrester; the base hook hangs the wire by means of force, and the roller assists in stabilizing. The installation method comprises ground pre-assembly and high-altitude installation, the insulator does not need to be dismantled, the on-pole operation time is shortened by 50%, and the efficiency is doubled. Power failure can be avoided, operation and maintenance intensity is reduced, power supply reliability is improved, and the method is suitable for distribution network non-power-failure operation.

A compact ratchet wrench comprises a body and a ratchet head. The body has a head and a grip. A length between a distal end of the head and a rotation axis defines a front section length. A length between a distal end of the grip and the rotation axis defines a rear section length. An end of the ratchet head is provided with a driving portion. The driving portion has driving surfaces and a distance between two of the driving surfaces which are opposite to each other defines a drive width. The ratio of the front section length to the drive width is less than 2.5 and greater than or equal to 1. The ratio of the rear section length to drive width is less than 12 and greater than 4.

The utility model provides an auxiliary installation device and a server, relates to the technical field of servers, and is used for solving the problems that a stress point of a PCIE liquid cooling card is not fixed and is difficult to insert in place at a time, and the auxiliary installation device comprises a pressing plate, a supporting seat, an elastic supporting piece and a wrench; the supporting seat is provided with a containing groove, and the elastic supporting piece and the pressing plate are arranged in the containing groove. The elastic supporting piece is arranged below the pressing plate and used for supporting the pressing plate. The wrench abuts against the pressing plate, and the wrench can rotate relative to the supporting base so that the pressing plate can be driven by the wrench to slide to the first position or the second position. When the pressing plate slides to the first position, the edge, in the length direction, of the pressing plate protrudes out of the corresponding edge of the supporting base. When the pressing plate slides to the second position, the edge, in the length direction, of the pressing plate is flush with the corresponding edge of the supporting base. According to the auxiliary installation device and the server provided by the invention, the stress point is fixed, the PCIE liquid cooling card can be inserted in place at one time, and the liquid leakage risk at the blind plug position is reduced.

A power tool includes a main housing and a motor having a front bearing retainer. The motor is supported within the main housing. The power tool also includes a yoke housing coupled to the main housing and a plurality of fasteners configured to secure the front bearing retainer within the main housing. Each fastener passes through the main housing, the yoke housing, and the front bearing retainer. The power tool includes an output assembly arranged in the yoke housing and configured to receive torque from the motor. The output assembly includes an anvil having an output member configured to engage a socket and a pawl that is moveable between a first position in which the pawl is operatively coupled to drive the anvil in a first direction and a second position in which the pawl is operatively coupled to drive the anvil in a second direction opposite the first direction.

The utility model provides a round vibrating screen for dry-mixed mortar with a good screening effect, and relates to the field of round vibrating screens, the round vibrating screen comprises a base, a supporting assembly, a screening assembly, a vibration excitation assembly and a driving assembly, the screening assembly comprises a screening box, a screen mesh is arranged in the screening box, the vibration excitation assembly comprises a rotating shaft, the rotating shaft penetrates through the screening box, and the supporting assembly is arranged on the base. An amplitude adjusting mechanism is mounted on the surface of the rotating shaft and comprises a connecting ring fixedly arranged on the surface of the rotating shaft in a sleeving manner; according to the vibration amplitude adjusting mechanism, when the vibration amplitude of the screen box needs to be adjusted, the hexagonal head can be rotated through a hexagonal wrench, the threaded rod is driven to rotate through the hexagonal head, and due to the fact that the threaded rod is in threaded connection with the connecting sleeve, the vibration amplitude of the screen box can be adjusted along with rotation of the threaded rod. The distance between the balancing weight, the eccentric block and the connecting ring can be changed, then the distance of the gravity center deviating from the axis of the rotating shaft is changed, and the vibration amplitude of the screen box is adjusted.

The invention particularly relates to a flat spiral spring tightening device and method, and solves the problems that when an existing spiral spring is assembled, the spiral spring needs to be taken out repeatedly, and the assembly period is prolonged; and when the coil spring is loaded into a spring box, the coil spring is easily scratched, redundant materials are caused, and surface treatment of the coil spring is difficult to carry out. The invention discloses a flat spiral spring tightening device which comprises a spring box seat, a spiral spring shaft arranged in a spring box, a spiral spring wrench, a tightening assembly, a fixing assembly and a spiral spring shaft connecting assembly. The upper end of the coil spring shaft extends out of the upper end of the spring box, and the lower end penetrates through the inner bottom of the spring box to be connected with the coil spring shaft connecting assembly. The coil spring wrench is rotatably connected with the fixing assembly; the tightening assembly is matched with the coil spring outer connector and used for driving the coil spring outer connector to rotate to tighten the coil spring. The method disclosed by the invention can be used for the working processes of initial assembly, surface treatment, fine assembly, testing, secondary adjustment and the like of the coil spring.

The manual knife returning device comprises a manual wrench assembly and a knife retracting assembly, the manual wrench assembly comprises a manual wrench handle, a manual wrench shaft sleeve and a manual wrench rotating shaft, and the knife retracting assembly comprises a knife retracting gear shaft, a knife retracting transmission gear, a motor gear and a rack. The tool retracting gear shaft and the tool retracting transmission gear can be driven to move upwards by rotating the manual wrench assembly, the tool retracting transmission gear is separated from the motor gear, the rack can be driven to retract through the tool retracting transmission gear by continuously rotating the manual wrench assembly, and manual tool retracting is achieved. By means of the mode, when the electric gear is rotated upwards through the lower half section of the wrench assembly, the middle section of the wrench is kept static, so that the tool retracting transmission gear can be easily pulled out, the wrench is further used as a torsion input tool after being pulled out, manual tool retracting is achieved, and the labor intensity of workers is reduced. And the risk that the knife cannot be retracted manually when the resistance is too large in the operation process is avoided.

The utility model discloses electric scissors which comprise a machine shell, a switch trigger, a spring connecting the switch trigger and the machine shell, a machine core and a movable blade, and the machine shell is movably connected with the switch trigger. The deadbolt comprises a body connected with the machine shell in a sliding mode, a first protruding block arranged on the side portion of the body, a first edge groove, a second edge groove, a first limiting end and a second limiting end, a step capable of being limited with the first protruding block is arranged on the switch trigger, and the first edge groove and the second edge groove are arranged in the sliding direction of the body. An elastic buckle which can be clamped with the first edge groove or the second edge groove is arranged on the machine shell, the first limiting end and the second limiting end extend out of the two sides of the machine shell respectively, when the first edge groove is clamped with the elastic buckle, the first protruding block and the step are not limited, and when the second edge groove is clamped with the elastic buckle, the first protruding block and the step are limited. The electric scissors have the advantages that through mechanical limiting of the deadbolt and the switch wrench, the risk of personnel injury is effectively prevented, and the structure of the electric scissors is safer.

The utility model discloses a portable moving support which comprises a U-shaped plate used for placing household appliances, a connecting rod attached to the inner side of the U-shaped plate and capable of relatively sliding along the U-shaped plate, a wrench assembly used for driving the connecting rod to move and a plurality of moving assemblies evenly distributed on the U-shaped plate and the connecting rod at intervals and used for lifting and moving the household appliances. The connecting rod comprises a slender rod and a connecting lug located on the slender rod and used for being connected with the moving assembly. The moving assembly comprises a left folding plate, a right folding plate and a rolling wheel, wherein the left end of the left folding plate is hinged to the connecting lug, and the left folding plate can slide along with the connecting rod; the right end of the right folding plate is hinged to the U-shaped plate; the rolling wheel is coaxially hinged to the right end of the left folding plate and the left end of the right folding plate. Wherein the width of the slender rod is smaller than that of the left folding plate and the right folding plate. The connecting rod used for driving the moving assembly to lift is the slender rod, and the slender rod is simple in structure, convenient to manufacture, light and convenient to carry.

The invention discloses an adjustable automatic feeder base, and relates to the technical field of feeder bases. Comprising a supporting base part, an adjusting piece is installed on the supporting base part, and the adjusting piece is used for being installed at the bottom of an automatic feeder frame through bolts; a detection adapter is mounted on the adjusting piece; a belt attaching part is mounted on the detection adapter; the belt laminating piece is used for laminating a belt of the automatic feeder; the belt attaching wheel can be attached to a belt to roll, an extrusion delay switch is automatically controlled, real-time detection can be achieved when the automatic feeder is kept in the running state, and a positioning electromagnet is controlled to magnetically attract and attach to the bottom of a wrench butt joint plate to conduct limiting work. The adjustable automatic feeder base solves the problem that an existing adjustable automatic feeder base is inconvenient to automatically limit shutdown operation and adjustment.