30results about How to "Prevent twisting" patented technology

The utility model discloses a spliced turning electric cylinder, the utility model discloses a first mounting seat is provided with the bottom of cylinder body, is provided with the piston rod on the cylinder body, and lubricating assembly includes setting the lubricating seat of cylinder body right side, the arc groove of opening in the inner wall of lubricating seat, the oil inlet pipe of setting in the top of lubricating seat, the oil inlet funnel of setting in the top of oil inlet pipe and the oil outlet pipe of setting in the bottom of lubricating seat, and the collection box of abutting at first mounting seat right side is included in collection component. In the utility model, the oil inlet funnel can pour in lubricating oil, and the lubricating oil after pouring will enter the arc groove of lubricating seat through the oil inlet pipe, and the arc groove makes lubricating oil slowly flow down along the outside of piston rod, and piston rod moves slowly, and piston rod can be completely lubricated, and then the cooperation of the stud and nut set up can fix the collection box on first mounting seat, and the collection box after fixing can automatically collect lubricating oil, so as to use.

This utility model discloses an electrical connector sheath mounting structure, including a wire harness end sheath and an appliance end socket. The wire harness end sheath includes a sheath body, a longitudinal arm on one side of the sheath body, and a locking block on the longitudinal arm. The appliance end socket has a locking opening on its side that cooperates with the locking block. The electrical connector sheath mounting structure of this utility model has the advantages of simple structure, low cost, and high reliability.

This application relates to the field of vehicle chassis and provides a suspension structure and a vehicle. The suspension structure of this application includes an outer tube, an inner core disposed within the outer tube, and an elastic body disposed between the outer tube and the inner core. The elastic body has a first portion wrapped around the inner core and a second portion connected to the first portion. The second portion is disposed at the end of the inner core connected to the powertrain bracket, and when the inner core is connected to the powertrain bracket, the second portion can abut against the powertrain bracket. The suspension structure of this application can increase the friction between the elastic body and the powertrain bracket, and also increase the friction between the powertrain bracket and the inner core during the connection process, preventing the inner core from shifting. This effectively avoids torsional deformation of the elastic body, thereby improving the reliability of the elastic body and the overall suspension structure.

The application relates to a glove finger fixing device which comprises a metacarpophalangeal joint bridge, a finger root band, a finger root buckle, a binding line, a finger joint bridge, a position limiter, a glove connecting hole, a fingertip band, a fingertip buckle and a fixator; the metacarpophalangeal joint bridge is a semicircular arch bridge structure, is hollow in the middle and is provided with a position limiter on the top; the finger root band is a left-right symmetrical hollow structure, is provided with a circular opening at one end and is provided with a finger root buckle at the other end; the finger root buckle is a semispherical and cylindrical upper-lower combined structure; the binding line is a right-angle S-shaped structure and is connected to the two ends of the finger joint bridge; and the finger joint bridge is a double-arch bridge structure, is hollow in the middle and is provided with a position limiter on the top. In use, the application does not collide with the metacarpophalangeal joint, is comfortable and simultaneously reduces the error when collecting finger movement data.

This utility model provides a pre-embedded water-stop steel sleeve installation structure, suitable for scenarios such as water supply and drainage in high-rise buildings, industrial circulating water, and municipal water supply pipeline renovation. It can effectively solve problems such as loose pipe connections, water hammer impact damage, and axial torsion. The structure includes a steel pipe sleeve, a flange, an anti-loosening mechanism, a buffer mechanism, and an anti-torsion rib. The anti-loosening mechanism achieves longitudinal adjustment and secondary anti-loosening through the sliding of the height adjustment column and the insertion of the positioning pin; the lateral adjustment ensures a tight fit of the external flange; the buffer mechanism uses a buffer spring to absorb the impact force of water hammer and protect the connecting parts; and the anti-torsion rib enhances the resistance to axial torsion. This utility model is easy to install, has reliable sealing, efficient buffering, strong anti-torsion, and a simple structure, making it easy to modify and upgrade, reducing construction and maintenance costs, and ensuring the stable operation of the pipeline system.

This invention discloses a crankshaft-type dual-point multi-link press, relating to the field of press technology. It includes a support table, table body, crankshaft assembly, trolley assembly, and track. The crankshaft assembly includes a motor, transmission gears, a large gear, and a crank-connecting rod mechanism to achieve a "slow down, fast up" stamping motion. The trolley assembly includes a geared motor, drive wheels, and track cleaning blades to achieve smooth transfer of the entire machine and track cleaning. Anti-eccentric load devices are provided on both sides of the crankshaft assembly. These devices include a connecting drive assembly, a guiding and stabilizing assembly, and a clamping support assembly. This invention uses the sliding block to trigger the connecting drive assembly when it descends, which, in conjunction with the multi-link, achieves eccentric load compensation. The guiding and stabilizing assembly provides high-precision vertical guidance, and the clamping support assembly dynamically clamps the guiding structure during the stamping process. The entire machine has a compact structure, stable operation, high stamping accuracy, and strong anti-eccentric load capability.

The utility model discloses a kind of composite material compression test fixtures of synchronous pressure application, including chassis and clamping block;Chassis includes bottom plate that can be installed on test table and the back plate and two side plates connected with bottom plate;Two pairs of clamping block are symmetrically arranged, and each pair of clamping block is symmetrically arranged;The upper and lower clamping block of one side is slidably installed on the same movable plate by first vertical guide structure, movable plate side portion is slidably installed on back plate by horizontal guide structure, movable plate is installed with clamping power component in the side away from clamping block, clamping power component is towards one side side plate, clamping power component is used to resist on side plate and promote the clamping of clamping block in the side;The upper and lower clamping block of the other side is slidably installed on the same fixed plate by second vertical guide structure, and fixed plate is installed on the other side plate;Clamping block is close to the end of effective test area and is equipped with extension and arc chamfer.This fixture can slow down the stress concentration of clamping block end in sample effective test area, and left and right clamping block load distribution is uniform.

This utility model provides a clamping mechanism for a drilling and anchoring platform vehicle on high slopes, including: a fixed mounting base, a main clamping mechanism, and a secondary clamping mechanism; the main clamping mechanism includes: a main thrust assembly fixedly connected to the fixed mounting base; a central tip structure disposed on the fixed mounting base for limiting the clamping depth, the central tip structure being used to press and position the face of the anchor bolt hole to be constructed; the main thrust assembly includes: a main push base structure connected to the platform flange; a main push rod structure telescopically connected to the main push base structure; the main push rod structure is fixedly connected to the fixed mounting base; the secondary clamping mechanism includes: a secondary thrust assembly disposed on the fixed mounting base, the secondary thrust assembly being located to the side of the main thrust assembly, the secondary thrust assembly being used to assist the main thrust assembly in clamping the face of the anchor bolt. Compared with the prior art, this utility model overcomes the problem of the axis rotation affecting the drilling accuracy during the clamping process, and can press and position the face of the anchor bolt hole to be constructed, improving the drilling and anchor bolt alignment accuracy.

The utility model discloses a filtering device for sintered colored sand production, which comprises a bottom plate, a screen frame is arranged above the bottom plate, a first screen mesh, a second screen mesh and a third screen mesh are sequentially and fixedly mounted in the screen frame, screen holes of the first screen mesh, the second screen mesh and the third screen mesh are different, three funnels are fixedly mounted on the bottom side of the screen frame, and the bottom side of the screen frame is provided with a filter screen. Three funnels are located below the first screen mesh, the second screen mesh and the third screen mesh correspondingly, the first screen mesh, the second screen mesh and the third screen mesh are arranged, the screen meshes of the screen meshes are different, three kinds of sintered colored sand different in size can be classified in one-time operation, a motor drives a beating plate to beat a screen frame, the screen frame is made to fully shake in cooperation with a first spring and a second spring, and therefore the sintered colored sand can be screened out through the first screen mesh, the second screen mesh and the third screen mesh. Compared with a traditional single-screen device, the multi-screen device has the advantages that the screens do not need to be replaced frequently, the production efficiency is greatly improved, continuous and efficient work can be achieved, the production progress is greatly promoted, the time and labor cost is reduced, and the requirements of the market for sintered color sand of various particle sizes are met.

The utility model relates to filter technical field especially, it relates to a filter of convenient replacement filter core. Its main purpose is that the existing filter is connected by screw thread for shell, and if the filter core is replaced, the pipeline is easy to lead to pipeline torsion winding without disassembling two end pipelines, and the interface is exposed to cause impurity to enter and pollute the inside when the pipeline is disassembled, which increases the operation difficulty, may damage the pipeline, and also influences the filtering effect, and the following technical scheme is proposed, including lower casing, the upper casing is arranged in the open side of lower casing, and the rubber ring is arranged between lower casing and upper casing, the filter core is installed between lower casing and upper casing, the connecting assembly is arranged in the connecting position of upper casing and filter core, and the connecting assembly is used to drive upper casing to be close to lower casing and compress rubber ring to realize sealing. The utility model can conveniently replace filter core, avoid pipeline torsion winding and damage, prevent impurity from entering and polluting the inside, guarantee the filtering effect, and reduce the operation difficulty.

This invention provides a handheld laser welding device for preventing wire twisting, belonging to the field of laser welding technology. It addresses the problem in existing handheld laser welding torches where the wire feed tube easily twists due to torch movement, leading to uneven wire feeding. The handheld laser welding device includes a welding torch and a wire anti-twist device detachably connected to the torch. The anti-twist device includes a first wire nozzle, a second wire nozzle, and a quick-release structure. Both the first and second wire nozzles have wire holes. The tail end of the first wire nozzle rotatably engages with the head end of the second wire nozzle. The quick-release structure is located on the outer layer of the engagement point between the first and second wire nozzles and restricts unintended axial sliding of the first and second wire nozzles. By optimizing the structural design of the wire anti-twist device on the handheld laser welding torch, the problem of wire feed tube twisting due to dragging during welding is effectively avoided, ensuring smooth wire feeding.

This invention relates to the field of overhead power transmission conductor technology, and in particular to a tenon-and-mortise interlocking ultra-high strength aluminum alloy steel core conductor and its preparation method. The conductor comprises an ultra-high strength steel core and an outer ultra-high strength aluminum alloy conductive layer. The ultra-high strength steel core is a G3A grade galvanized steel core, and the ultra-high strength aluminum alloy conductive layer is composed of 3-4 layers of S / Z type tenon-and-mortise interlocking wires concentrically stranded. The S / Z type tenon-and-mortise interlocking wires are a single-layer, single-wire concave-convex interlocking structure. This invention optimizes the Mg-Si-Zr-RE-B multi-element alloy composition system, achieving a Mg to Si mass ratio of 1.0-1.4, and combines this with a "solution-cold drawing-double-stage aging" process. This maintains high conductivity while increasing tensile strength to ≥360MPa, achieving an excellent match of high strength and high conductivity, and significantly improving strength while ensuring unchanged conductivity.

This utility model relates to the field of blister packaging technology, and in particular to a food blister packaging with an anti-pressure buffer structure. The food blister packaging with an anti-pressure buffer structure includes a box body, a lower connecting edge fixedly connected to the top of the box body, an upper connecting edge hinged to one side of the lower connecting edge, a lid fixedly connected to the middle of the upper connecting edge, symmetrically fixed placement rings inside the box body, a hexagonal groove on the lower connecting edge, a hexagonal prism fixed at the bottom of the upper connecting edge that inserts into the hexagonal groove, a first support column and a second support column inside the box body, a first limiting post at the bottom of the lid that engages with the first support column, and second limiting posts at the four corners of the lid that engage with the second support column. Fastening grooves are provided on the upper and lower connecting edges away from the hinge. The food blister packaging with an anti-pressure buffer structure provided by this utility model has the advantages of strong anti-pressure performance, good anti-torsion effect, reliable protection of internal food, reasonable structural design, and strong practicality.

The utility model discloses a kind of steel wire rope pipe chain machines, belong to material conveying equipment technical field, including head, discharge valve, machine body pipeline, pipeline elbow, feed pipe, conveying disc piece, joint nut and steel wire rope main body, the inside installation of head has driving sprocket, steel wire rope main body drives conveying disc piece and circulates in head and tail between machine body pipeline, pipeline elbow connects machine body pipeline for realizing material turning, the feed pipe is prevented and is broken structure setting, the discharge valve is used for multi-point discharge, the conveying disc piece is fixed on steel wire rope main body with specific interval, left crimping sleeve and right crimping sleeve respectively crimp the both ends of steel wire rope main body, and fixed by the joint nut, the utility model replaces ring chain with steel wire rope, reduces weight energy saving, reduces material crushing, adapts high requirement industry, feed and discharge structure prevents and breaks design, convenient for overhaul, guarantee conveying quality and transportation maintenance convenience technical effect.

This disclosure provides an anti-tilt support device for a quartz crucible used in semiconductor crystal pulling, relating to the field of semiconductor crystal growth equipment technology. The device includes a support platform, a height adjustment mechanism mounted on the support platform, and a clamping mechanism mounted on the height adjustment mechanism. The clamping mechanism employs a U-shaped rigid constraint node design. A single power source inside the drive box drives a vertical transmission rod, which in turn drives two horizontal lead screws to rotate synchronously via a rigidly enclosed bevel gear set, thereby causing the arc-shaped clamping plates on both sides to move synchronously towards the center. The U-shaped fixing plate serves as the core rigid element, providing multi-dimensional precision rotational support for the meshing parts of the transmission rod and the two lead screws, effectively eliminating gear slippage and shaft deformation during gear meshing. This disclosure significantly improves the verticality maintenance capability of the quartz crucible during single crystal growth and extends the equipment's service life.

This invention discloses a surgical robot and a method for inserting an endoscope into the surgical robot. The robot includes an outer tube with a channel for accommodating an endoscope. The endoscope is detachably connected to the outer tube. The surgical robot also includes a connecting part, which is positioned corresponding to the channel. One end of the connecting part is connected to the outer tube, and the other end is used to connect to the endoscope. When the endoscope and the outer tube are connected via the connecting part, both the endoscope and the outer tube can be operated by the same person. By using the connecting part, when using a separate outer tube and endoscope, an additional assistant is no longer needed to hold the endoscope. Compared to operating the endoscope and outer tube by different personnel, when operated by the same person, the endoscope and outer tube work together to keep the target position within the line of sight, avoiding unexpected movements such as lens shake, twisting, and shifting that may occur when an assistant holds the endoscope, thus reducing the difficulty and threshold of diagnosis and treatment.

The utility model provides a kind of welding wire production steel strip rolling mill, including the U forming roller group, the slit forming roller group and the zero forming roller group that are sequentially arranged along the direction of motion of steel strip;The slit forming roller group is equipped with limit plate near U forming roller group side, and steel strip passing space is left between two limit plates, and the inner side wall of two limit plates can be respectively tightly attached on the two sides of steel strip;The zero forming roller group is equipped with limit pressing block near slit forming roller group side, V-shaped groove is opened on it, and the opening of V-shaped groove is towards the slit of the two forming rollers of zero forming roller group. The utility model is equipped with two limit plates in the upstream of slit forming roller group, and the U-shaped groove of auxiliary clamping steel strip is avoided to twist when slit roller group exerts external force on steel strip in working, so as to avoid slit twist to affect subsequent processing.

The application discloses a sheath tube, a guide sheath, a guide sheath assembly and an endoscope kit, and relates to the technical field of medical devices. The sheath tube disclosed by the application is used for a guide sheath, and the sheath tube comprises an inner liner tube and an outer covering skin, and the outer covering skin is sleeved on the outer periphery of the inner liner tube, wherein: the outer covering skin comprises a first outer covering section and a second outer covering section, the first outer covering section is arranged on one side of the second outer covering section close to the distal end of the inner liner tube, and the rigidity of the first outer covering section is smaller than the rigidity of the second outer covering section. The above scheme can at least solve the problem that the guide sheath placement operation is blocked.

The utility model discloses a board production is with the glue protection device, including tubular body one, tubular body two, partition strip and fender, tubular body one symmetry sets up, and tubular body one is galvanized pipe, plastic pipe or wood square, and the bottom of tubular body one is equipped with antiskid line. The board production is with the glue protection device of the application has simple structure, convenient to use, and the advantages such as good protection effect can effectively improve the personnel safety when and glue work, effectively prevent and store the bag of and glue process and be twisted by stirring shaft.

The utility model relates to high altitude operation safety equipment technical field especially, a portable anti -drop safety belt system hanging point device, in the light of the existing portable safety belt system hanging point device exists the problem that cannot be adapted to top hanging point limiting, the portable anti -drop safety belt system hanging point device that the utility model proposes includes sleeve, and the sleeve bottom end is connected with the ring that hangs, still includes support mechanism and rotating mechanism. Support mechanism includes a plurality of movable connection in sleeve lateral wall circumferential direction support assembly, and the lower portion of support assembly is equipped with the limit block, and the sleeve inside movable sleeve is equipped with the adjusting lever, and the top of adjusting lever is rotatably connected with the bottom of limit block. Support assembly includes the pivot that rotates in the sleeve, and the support rod is connected on the pivot, and the limit rod that is perpendicularly established is still connected on the pivot with support rod. The portable anti -drop safety belt system hanging point device in the utility model not only can through the unfolding and contraction of support assembly quick detach, but also can prevent the rope twist through the rotating seat.

A push-pull locking connector comprises a socket and a plug, a socket cavity is arranged in a socket shell of the socket to accommodate the plug, a plurality of elastic claws are arranged on a plug shell of the plug near a plug-in end, the elastic claws are distributed along a circumference at intervals, an avoiding portion is arranged on an inner wall of the socket cavity near the plug-in end, a diameter of the avoiding portion is greater than a maximum outer diameter of the elastic claws on the plug, one end of the avoiding portion extends to the plug-in end of the socket and is open to an end face of the plug-in end, so that the elastic claws can enter the socket cavity through the avoiding portion without being squeezed when the plug is inserted into the socket, a guide portion for squeezing the elastic claws to shrink and deform is arranged in front of the avoiding portion, and a locking groove capable of being buckled with the elastic claws is arranged in front of the guide portion. The push-pull locking connector can reduce a plug-in force and improve a plug-in feeling.

This invention discloses a power device for supplying power to the bucket of an electric shovel excavator and its method of use. The power device includes: an internal power element for outputting power; a bucket-end actuator connected to the internal power element via a friction-type pipeline, the bucket-end actuator driving the bucket to perform actions; and a winch located adjacent to the internal power element, the winch being connected to the friction-type pipeline. When the friction-type pipeline moves, the friction-type pipeline drives the winch to rotate, thereby retracting or extending the friction-type pipeline. The power device can transmit power and prevent damage to the pipeline.

The utility model provides a kind of composite material pipe with wet abrasion resistance test tool, including sink, for holding seawater;At least two fixed clamps are provided at the bottom of the sink, for fixing composite material pipe, the inside hollow of composite material pipe and at least partial inner wall surface is immersed in seawater;Composite material pipe with wet abrasion resistance test tool further includes portal frame, cable, the cable passes through from the inside of the composite material pipe, drive motor is provided on the portal frame, for driving cable reciprocating motion.The utility model utilizes cable and the abrasion of composite material immersed in seawater to simulate marine working condition, quickly evaluate the wear resistance of material, provide powerful data support for material optimization;By changing the distance between first fixed plate and second fixed plate to adjust the tension of cable to simulate offshore working condition, satisfy the wear resistance research under different marine working condition.

This utility model relates to the field of paper production technology, and in particular to a ceramic creping doctor blade assembly for paper production. It includes a base plate, a circular roller mounted on the upper left side of the base plate, a first outer shell fixedly connected to the center of the base plate, a second outer shell whose bottom is fixedly connected to another second outer shell, and a cylinder fixedly connected to the right side of the base plate. This ceramic creping doctor blade assembly for paper production, through the cooperation of a rotating mechanism and a grinding roller, allows the output shaft of a second motor to rotate, driving a worm gear to rotate. This allows for simultaneous grinding of the creping doctor blade and continuous paper processing, saving waiting time and improving work efficiency. Through the cooperation of a swinging mechanism and the creping doctor blade, the continuous rotation of a third motor causes the creping doctor blade to swing continuously, intermittently contacting the circular roller to achieve the purpose of creping. The swinging mechanism ensures indirect contact between the creping doctor blade and the paper, achieving the desired creping effect.

The present application relates to the technical field of chair production, and particularly relates to a chair net feeling device and a net feeling process, which comprises a rack, a positioning mechanism and a net tightening mechanism, the positioning mechanism comprises a fixing assembly for fixing the chair, and two groups of limiting assemblies arranged on the rack and limiting the two side armrests correspondingly; the net tightening mechanism comprises a servo sliding table assembly capable of moving back and forth below the chair seat, a jacking assembly capable of moving up and down and moving with the servo sliding table assembly, a centering sliding table assembly symmetrically arranged on the jacking assembly and capable of moving left and right, and cloth clamping assemblies symmetrically arranged on two groups of sliding table plates a of the centering sliding table assembly; the two groups of cloth clamping assemblies are driven by the servo sliding table assembly to move forward, the centering sliding table assembly cooperates with the jacking assembly to make the net cloth unfold and cover the arc-shaped section at the front end of the chair seat, and cooperates with the net feeling tightness detection mechanism to solve the technical problem of poor net feeling effect of the arc-shaped section at the front end of the chair seat in the prior art.

The utility model relates to rubber pipe support technical field, concretely relates to a rubber pipe anti -twisting shaping support, including support board, L type clamping block, electric slide rail, sliding block, first fixed block and second fixed block, the back fixed connection of support board has L type clamping block, and the left and right sides of support board front portion are all symmetrical and installed with electric slide rail, and each electric slide rail is all slidably connected with sliding block, and the top of two sliding blocks of downside is all fixedly connected with first fixed block, and the bottom of two sliding blocks of upside is all fixedly connected with second fixed block, and the first fixed block and second fixed block of same side are set up upside down to the rubber pipe, and cooperate electric slide rail and adjust position, realize stable shaping, effectively prevent pipe body distortion, keep the integrity of flow cross section, improve the standardization and security of pipeline arrangement.

A crane guiding device and mechanism, relating to the field of track-walking technology, is disclosed. The device includes a guide seat, which is generally rectangular in shape. The lower surface of the guide seat has an inverted U-shaped opening groove along the front-to-back direction. At least two guide wheel sets are connected to the left and right side walls of the inverted U-shaped opening groove via pluggable pins. Each guide wheel set is arranged side-by-side along the front-to-back direction, and each guide wheel set includes two guide wheels respectively disposed on the left and right side walls of the inverted U-shaped opening groove with their rolling surfaces facing each other. The mechanism includes at least one pair of the aforementioned crane guiding devices, and each pair of crane guiding devices includes crane guiding devices respectively connected to the front and rear ends of the crane end beam. The device features a simple structure, stable operation, easy maintenance, good synchronization, and can significantly reduce wear on the wheels, effectively solving the problem of wear caused by wheel rut deviation in existing technologies.

The application relates to the technical field of high polymer fiber rope manufacturing, and discloses a preparation process of a double-twisted anti-rotation ultra-high molecular weight polyethylene rope, which comprises the following steps: high-strength high-modulus UHMWPE fibers are selected as main body reinforcing fibers and are subjected to surface activation treatment; the treated UHMWPE fibers are divided into inner layer fiber bundles and outer layer fiber bundles; the blended inner layer fiber bundles are bundled, introduced into a tubular stranding machine through a tension controller, twisted in an "S" direction, and inner layer strands are formed; the twisted inner layer strands are continuously passed through a first heat treatment zone and cooled to form a pre-consolidated inner layer strand core. Through the combination of the double-layer blending functionalization, the inner-outer reverse twisting structure and the heat-induced plasticity integrated technology, the high-performance UHMWPE rope with high interface bonding strength, excellent anti-rotation performance, stable structure and intelligent monitoring potential is prepared, a series of problems such as weak interface bonding, easy rotation, single function and difficult monitoring are effectively solved, and the comprehensive performance and reliability of the UHMWPE rope are remarkably improved.