6789 results about "Wrench" patented technology

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 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.

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.

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 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 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 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.

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.

The utility model discloses a quick connecting and clamping device which comprises a core rod, a pulling and screwing assembly arranged on the core rod and an elastic assembly connected to the core rod in a sleeved mode, and the pulling and screwing assembly comprises a cam handle rotationally connected to one end of the core rod and a spring piece movably arranged at the other end of the core rod. The cam handle is connected with the end of the spring piece, a first flat position is arranged at the end, close to the spring piece, of the core rod, an installation groove is formed between the first flat position and the core rod, a locking block is arranged on the core rod, a first kidney-shaped hole is formed in the locking block, and a second kidney-shaped hole is formed in the first kidney-shaped hole. The locking block penetrates through the first flat position through the first kidney-shaped hole and is connected into the mounting groove, and when the locking block rotates till the length direction of the first kidney-shaped hole is inconsistent with the length direction of the first flat position, the first flat position limits movement of the locking block. The quick connecting and clamping device has the advantages of being high in vibration resistance and impact resistance, reliable in connection, capable of being quickly disassembled and assembled, capable of being repeatedly disassembled and assembled for use, convenient to disassemble and assemble, easy to machine and manufacture and the like.

The utility model discloses a mining explosion-proof electric wrench, which comprises an explosion-proof electric wrench device, a grab handle, an electric wrench explosion-proof shell, a driving main shaft with one end inserted into the electric wrench explosion-proof shell, and a nut sleeve head connected with the end part of the driving main shaft, a first guide ring and a second guide ring are arranged on the outer surface of the explosion-proof shell of the electric wrench; the limiting piece comprises an attaching plate installed on the surface of the explosion-proof shell of the electric wrench, a connecting rod connected with one end of the attaching plate and a fixing ring connected with the other end of the connecting rod; the knocking assembly comprises a moving rod penetrating through the fixing ring, a knocking head connected with one end of the moving rod and a reset spring arranged on the outer side of the moving rod in a sleeving mode; the anti-explosion electric wrench is provided with a knocking design for knocking a nut dismantled in the nut sleeve head, the thumb hooks the pull ring and pulls and loosens the pull ring, the pulling action is repeated, the movable rod drives the knocking head to move, the knocking head penetrates into the nut sleeve head, and the knocking head knocks the nut left in the nut sleeve head to enable the nut to fall off.

The invention discloses a wire-drawing die for steel wire production, and relates to the technical field of wire-drawing dies, the wire-drawing die comprises a die seat, a cleaning and lubricating mechanism, an ejection mechanism, a mounting groove, a wire-drawing die and a locking mechanism; the motor drives the rotating seat to rotate, the flushing and lubricating assembly and the cleaning bristles are matched, efficient cleaning and lubricating of the steel wires are achieved, and the surface quality of the steel wires is improved; the filtering device is arranged, lubricating liquid is finely filtered, cleanliness of the lubricating liquid is guaranteed, and adverse effects of impurities on steel wires and molds are avoided; a specific locking mechanism is utilized, an adjusting head is rotated through an internal hexagonal wrench, a series of gears and a rotating ring body are driven, rapid locking and loosening of a wire-drawing die by a slope clamping block are achieved, and installation and replacement of the wire-drawing die are greatly facilitated; after the wire-drawing die is loosened, the ejection mechanism can automatically eject out the wire-drawing die, so that the wire-drawing die can be conveniently checked, maintained or replaced, and the production efficiency is improved.

A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular. A polymer melt filter plate assembly which comprises (a) a support plate comprising a plurality of threaded holes; (b) at least one filter which is screwed into at least one of the threaded holes via the screw thread on the outside surface of the first end portion of the filter support; (c) a tie rod with (i) a first end extending through a hole in a cone insert and a cap located at the second end of the filter support, and (ii) a second end extending through a threaded hole in the support plate; and (d) a cross bar which is attached to the second end of the tie rod for holding the support plate inside a shaft of an apparatus for filtering a polymer melt.

The utility model discloses a hand-operated wrench assembly, a hand-operated knife return device and an electric anastomat, the hand-operated wrench assembly comprises a hand-operated wrench handle, a hand-operated wrench shaft sleeve and a hand-operated wrench rotating shaft, and the hand-operated knife return device comprises a hand-operated wrench assembly, a knife return gear shaft, a knife return 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, manual tool retracting is achieved, and the electric anastomat comprises a manual tool returning device. 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, 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, operation difficulty and failure risks are reduced, large torque is generated with small force, and the tool retracting transmission gear can be pulled out easily. And rapid manual tool retracting is achieved.

A skewer-wrench combination includes and a skewer, an Allen key and a compensator. The skewer includes a thread at an end, a non-circular bore in an opposite end, and two grooves in a wall of the non-circular bore. The compensator includes two bent sections fitted in the grooves. The Allen key includes a non-circular rod compliant with the non-circular bore. The non-circular rod is smaller than the non-circular bore so that the former is easily insertable in the later. The non-circular rod is in tight contact with the bent sections of the compensator as the non-circular rod is inserted in the non-circular bore.

The invention discloses intelligent bolt fastening equipment which comprises a fixing mechanism, a translation mechanism, a shifting mechanism, a wrench floating mechanism, a wrench assembly, a sleeve measuring device and an optical switch assembly. Wherein the fixing mechanism is used for fixing the whole bolt fastening equipment on a device to be fastened; the translation mechanism is fixed on the fixing mechanism, the turning mechanism is fixed on the translation mechanism, the wrench floating mechanism and the sleeve measuring device are fixed on the turning mechanism, the wrench assembly penetrates through the wrench floating mechanism and the turning mechanism, and the sleeve measuring device measures whether a bolt sleeve at the tail end of the wrench assembly is matched with a to-be-fastened bolt or not; the translation mechanism drives the turning mechanism, the wrench floating mechanism, the wrench assembly and the sleeve measuring device to move up and down, and the optical switch assembly triggers and measures the displacement of the up-and-down movement. The bolt fastening device is wide in application range, high in bolt fastening precision and accuracy and long in service life.

The utility model belongs to the field of elevator guide rail bracket installation, specifically an elevator guide rail bracket, comprising a first bracket; through the structural design of an adjustment mechanism, a user moves a bolt into a movable hole, when the bolt moves into the movable hole, the user moves the first bracket to a corresponding position, and the threaded hole inside the first bracket moves to the surface of the bolt. After the first bracket is moved, the user fixes the bolt through a nut, so that the installation space of the bracket can be reduced to the limit, and the installation space is sufficient for wrench installation, the connection process is convenient, the adjustment is stable, and the material is effectively saved for stable installation. The problem of the elevator guide rail bracket being too cumbersome to install during use is solved, the practicality of the elevator guide rail installation for the user is reduced, the workload of the user to install the elevator guide rail is increased, the problem of stable adjustment effect after the elevator guide rail is installed is reduced, and the efficiency of the elevator guide rail installation is improved.

The invention discloses an electric anastomat with a manual rollback mechanism, which comprises a support, a cutting knife mechanism, a driving mechanism and a transmission mechanism connected with the driving mechanism and the cutting knife mechanism, and the cutting knife mechanism comprises a cutting rack and a cutting knife assembly connected with the cutting rack. The driving mechanism comprises a driving motor and a driving gear arranged at the power output end of the driving motor, and the transmission mechanism comprises a pin shaft which is fixedly arranged on the support and extends in the vertical direction; the transmission piece is arranged on the pin shaft in a sleeving mode and limited at the upper end of the pin shaft, the transmission piece comprises a positioning shaft and a gear part which are arranged up and down, and the outer diameter of the positioning shaft is smaller than that of the gear part; the shaft sleeve is fixedly arranged on the support and arranged above the transmission part in a sleeving mode. The elastic piece is arranged on the positioning shaft in a sleeving mode and abuts against the position between the shaft sleeve and the gear part; the manual rollback mechanism comprises a rollback wrench and a transmission piece, and the rollback wrench extends to the transmission piece through the shaft sleeve and is in threaded connection with the transmission piece. According to the electric anastomat provided by the invention, manual rollback can be realized.

An engagement structure of a ratchet wrench, the ratchet wrench contains: a body which including a drive head, a ratchet portion, and the engagement structure. The engagement structure includes a through orifice, a first defining notch, a second defining notch, a receiving notch, and a spring. An abutting member includes a first arcuate cutout, a coupling column, a locking orifice, and a first limitation protrusion. A retainer is mounted on the through orifice and includes a second arcuate cutout, a connection trough, a passing aperture, and a second limitation protrusion. When the abutting member is received in the through orifice, the first limitation protrusion is engaged in the first defining notch, the coupling column is connected with the connection trough, and a locking element is locked with the locking orifice. The second limitation protrusion is engaged in the second defining notch, and the spring abuts against the coupling column.

The utility model relates to the technical field of transfer devices, in particular to a movable support with a folding handle and a household appliance. The inner moving part is arranged in the outer groove plate and can slide relative to the outer groove plate; the lifting mechanism is connected with the outer trough plate and the inner moving part, and when the inner moving part slides relative to the outer trough plate, the lifting mechanism enables the outer trough plate to ascend or descend; the wrench assembly comprises a rotating part, the rotating part is hinged to the outer groove plate and is in transmission connection with the inner moving part, and when the rotating part rotates, the rotating part drives the inner moving part to slide relative to the outer groove plate; the handle part is hinged to the rotating part through a first hinge point; the locking mechanism is used for enabling the handle part and the rotating part to rotate synchronously. According to the utility model, one part of the longer wrench assembly is folded, so that the storage, the packaging and the transportation are facilitated. The utility model also avoids the inconvenience that all the wrench assemblies need to be reassembled when the movable bracket is used.

The invention discloses a one-way automatic valve welding seam cutting method and a one-way automatic valve welding seam cutting device. The one-way automatic valve welding seam cutting method comprises the following steps that S1, a safety insurance mechanism is unlocked; s2, the cutting height is adjusted through an automatic lifting mechanism; s3, the clamping mechanism clamps the valve; and S4, a ratchet wheel automatic cutting mechanism is used for cutting the valve welding seam and comprises a machine pedestal, one side of the machine pedestal is connected with an automatic lifting mechanism, and the machine pedestal is provided with an electric driving mechanism used for changing the movement direction and a clamping mechanism used for clamping the valve. The electric driving mechanism is connected with and provides power for the automatic ratchet wheel cutting mechanism for automatically cutting the welding seam of the valve, a working method of a ratchet wheel mechanism is adopted, one-way cutting of the welding seam of the valve is achieved, and the electric driving mechanism is used for driving a ratchet wrench to continuously rotate within a certain angle so that the welding seam of the sealing valve can be automatically cut by a cutter. And the time that workers need to be in high-concentration nuclear radiation during cutting is greatly shortened.

The invention discloses a bolt tightening force control device and method based on bolt axial force real-time detection, and relates to the technical field of bolt tightening. The bolt tightening force control device based on bolt axial force real-time detection comprises the following detection methods that a probe transmits a measurement signal to a signal processing device in real time; the signal processing device judges whether an axial force set value is reached or not, before the axial force set value is reached, the hydraulic pump outputs hydraulic power, the hydraulic wrench drives the nut to rotate, the nut rotates to generate tightening force, meanwhile, the axial force of the bolt is measured in real time, and the hydraulic pump is controlled to stop outputting the hydraulic power till the axial force set value is reached. The hydraulic pump is controlled to drive the hydraulic wrench by directly measuring the axial force, interference factors such as friction force in the rotating process of bolts and nuts are eliminated, control precision and consistency are reliably guaranteed, and therefore real-time measurement of the axial force is achieved.

The utility model discloses a rubber water-stop strip component convenient to install, which comprises a rubber water-stop strip body, sealing plates are fixedly connected to two sides of the rubber water-stop strip body, profile steel is arranged on two sides of the rubber water-stop strip body, a clamping groove is arranged on the front side of the profile steel, a clamping strip is arranged in an inner cavity of the clamping groove, and the rubber water-stop strip body is fixedly connected with the clamping strip. Connecting plates are fixedly connected between the clamping strips and the sealing plates, mounting grooves are formed in the front face and the back face of the profile steel, and baffles are arranged on the front face and the back face of the profile steel. The clamping strips can be clamped into the clamping grooves through the clamping grooves for quick connection, the clamping strips are subjected to limiting connection through the baffles, and compared with a traditional mode that a rubber water stop strip body is pried and plugged into a profile steel groove point by point through a wrench, the clamping type limiting connection is more convenient, time-saving and labor-saving; aging of the rubber water-stop strip can be reduced, the service life of the rubber water-stop strip is prolonged, and people can use the rubber water-stop strip conveniently.