72results about How to "Prevent twisting" patented technology

The utility model relates to bed connecting structure field discloses a connecting structure and bed, can install fast and stably hang piece, and the connecting place hides in the stand, is more beautiful. The utility model discloses a stand, including the first bending surface, the first bending surface is provided with first bending part and second bending part, and the first bending part is with second bending part in longitudinal and transverse all staggered settings, and first bending part and second bending part all are equipped with the positioning hole, the hang piece, including the second bending surface, the second bending surface is provided with third bending part and fourth bending part, and third bending part and fourth bending part have interval in longitudinal and transverse, and third bending part and fourth bending part all are equipped with the buckle, after the stand of hang piece is connected, the first bending surface can cooperate with the second bending surface, and the buckle can be hung and buckled on the corresponding positioning hole.

The utility model relates to the technical field of insulator hardware, disclose a kind of anti-twist web hardware for the connection of insulator, including the insulator main body for electrical insulation, the upper hardware assembly for being used to the fixed installation of insulator main body is set on the upper end, the cable fixing assembly for being used to the fixed clamping of cable is set in the upper hardware assembly, when insulator is subjected to torsional force, anti-migration tooth is engaged with insulator, limit axial displacement and disperse torsional force, positioning ring cooperates preliminary limit, when insulator is twisted, connecting ring rotates synchronously, recess and protruding block generate relative displacement, when torsional force is small, protruding block is formed mechanical locking by being clamped into recess, directly prevent twisting, when torsional force is large, protruding block slides along recess bevel, consume energy and attenuate torsional amplitude, positioning ring and anti-migration tooth continue to limit axial displacement simultaneously, by mechanical limit and engagement locking, prevent insulator from excessive torsion due to wind load, conductor swing etc., avoid insulation performance decline.

The utility model relates to a film tearing device for coil film tearing. The film tearing device comprises a horizontally arranged mounting plate and a first driving mechanism for driving the mounting plate to lift, the lower surface of the mounting plate is provided with a magnetic attraction position and a vacuum attraction position for attracting the coil to the mounting plate in a vacuum mode, and the upper side of the mounting plate is further provided with a magnet for attracting the coil to the magnetic attraction position; the film tearing device for coil film tearing further comprises an air cylinder for adjusting the distance between the magnet and the mounting plate in the vertical direction. According to the film tearing device used for coil film tearing, the suction cup is arranged to attract the coil, the magnet is further arranged to attract and fix the coil, displacement and falling of the coil during film tearing are effectively prevented, and the working efficiency of coil assembly is guaranteed.

The utility model discloses an I-shaped steel reinforcing assembly which comprises transverse I-shaped steel fixedly installed on the left side and the right side of I-shaped steel, a round sleeve is installed on the front side of the I-shaped steel, a square sleeve is installed on the surface of the round sleeve, and a plurality of bolts are arranged on the surface of the I-shaped steel in a penetrating mode. The round sleeve and the square sleeve are fixedly connected with the I-shaped steel through bolts, a connecting frame is fixedly connected to the surface of the square sleeve, an upper top plate is arranged at the top of the connecting frame and fixedly connected with the I-shaped steel, and a lower bottom plate is arranged at the bottom of the connecting frame and fixedly connected with the I-shaped steel. The round sleeve, the square sleeve and the connecting frame are used in cooperation, the periphery of a hole formed in the I-shaped steel is reinforced, then the supporting plate, the supporting frame and the triangular supporting plate are used in cooperation, the triangular supporting plate can support the lower bottom plate, and finally the round sleeve is stably installed on the periphery of the hole formed in the I-shaped steel.

This utility model relates to the field of chassis technology, providing a steering system and chassis. The steering system includes: a wheelset assembly, a steering assembly, and multiple shock absorber assemblies. The steering assembly includes a rotating platform and a steering motor, with the steering motor mounted on the top surface of the rotating platform. Multiple shock absorber assemblies are spaced apart along the forward direction of the wheelset assembly. Each shock absorber assembly includes a shock absorber and a radial fixing member. The top of the shock absorber is vertically connected to the rotating platform, and the bottom of the shock absorber is connected to the wheelset assembly. The radial fixing member is located on the bottom surface of the rotating platform and on the outer periphery of the shock absorber. This utility model can prevent the shock absorber from twisting, keeping the wheelbase and track width of the wheelset assembly constant, thereby preventing lateral movement. The shock absorber assemblies not only provide shock absorption but also act as a single-sided support with the steering assembly, further preventing lateral slippage of the wheelset assembly and ensuring its operation according to a set kinematic model, resulting in high safety.

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.

The utility model discloses an ultralow-torque rotation-resistant steel wire rope, which relates to the technical field of steel wire ropes, and adopts the following scheme that the ultralow-torque rotation-resistant steel wire rope comprises an inner core rope, an inner hinged steel wire is rotatably wound outside the inner core rope, an outer hinged steel wire is reversely and rotatably wound outside the inner hinged steel wire, and lubricating grease is coated between the outer hinged steel wire and the inner hinged steel wire; the inner core rope is arranged and is made of a high-strength and low-elongation synthetic material, so that the tensile strength and the extrusion resistance of the steel wire rope are improved, and the use safety of stress stretching is ensured; a multi-layer strand structure is formed by adopting a special twisting process, the twisting directions of all layers of steel wires are opposite, the overall torque of the steel wire rope is effectively reduced, the problem of twisting and winding is avoided, the steel wires have high strength and toughness after heat treatment, the surfaces of the steel wires are coated with lubricating grease or anti-rust oil, friction and abrasion between the steel wires are reduced, and the service life of the steel wire rope is prolonged. And the service life of the steel wire rope is effectively prolonged.

The utility model discloses an anti-twisting yarn guide device, which belongs to the technical field of devices for composite material production, and comprises an inner ring and an outer ring, the outer ring is sleeved outside the inner ring, the inner ring is rotatably connected with the outer ring, the inner ring is provided with a yarn passing hole, two shaft sleeves are rotatably connected in the yarn passing hole, the axis of each shaft sleeve is perpendicular to the axis of the inner ring, and a yarn passes through the space between the two shaft sleeves; two limiting columns are fixedly connected to the outer side wall of the inner ring and symmetrically arranged, two limiting holes are formed in the side wall of the outer ring, the two limiting columns penetrate through the two limiting holes respectively, and when the inner ring rotates, the two limiting columns slide in the two limiting holes respectively. On the premise that yarn abrasion is not increased, the twisting angle of the yarn in the running process can be limited, and the yarn is prevented from being twisted or folded.

The utility model relates to the field of hoist accessory, concretely relates to a hoist tail rope anti -twisting device, including fixed frame and two groups of constraint frame, two groups of constraint frame are respectively rotationally arranged in fixed frame both sides, the opposite side middle part of two groups of constraint frame all are fixed with limit stop, two limit stops opposite sides can mutually adhere, two groups of constraint frame opposite sides both sides all are provided with inner branch and outer branch, and the inner branch and the outer branch of adjacent position are located constraint frame same side, and the inner branch is located in the inner side of outer branch and can mutually abut tightly, and adjacent inner branch and outer branch constitute the blocking structure, the utility model discloses when one side tail rope occurs torsion and extrudes this side inner branch, not only does this inner branch limit the constraint of tail rope, still through the abutment cooperation with the outer branch of same side, the tail rope pressure of self -sustaining is conducted to the constraint frame of another side, thereby when tail rope deflection is by both sides constraint frame synchronous provides the constraint force of constraint, and the tail rope pressure is borne in common, effectively suppresses the deflection of tail rope.

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 discloses the technical field of aviation carbon emission monitoring, and discloses an aviation carbon emission sensing monitoring and quantitative analysis device and method.The device comprises a sensing monitoring component and a quantitative analysis component.The sensing monitoring component comprises a ground monitoring component and a cruising monitoring component.The quantitative analysis component is used for quantitatively analyzing aviation carbon emission according to data obtained by the sensing monitoring component.The device is provided with double unmanned aerial vehicles.The unmanned aerial vehicles are used to collect data in a V-shaped suspension posture in the air, and the suspension distance can be set to reduce the influence of the wind of the unmanned aerial vehicle blades on the collection process.The suspension posture is advantageous in reducing shaking and preventing the suspension rope from twisting, the monitoring effect is better, the data is accurate, and the analysis result accuracy is improved.

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.

The utility model provides a kind of suspension bridge main cable ventilation pipeline mounting structure, including ventilation pipeline subsection and the cable strand that has been erected around ventilation pipeline subsection lower, the both ends of ventilation pipeline subsection are provided with the spiral segment for being connected with each other, the outside of each cable strand is wound with the wrapping tape for being wound with ventilation pipeline subsection, the outer diameter of spiral segment is less than the outer diameter of ventilation pipeline subsection, and its connection with ventilation pipeline subsection is provided with the limiting ring that is tangent to and fits with surrounding cable strand. By setting wrapping tape on the multiple cable strands below ventilation pipeline subsection, and cooperating with the limiting ring that is tangent to and fits with cable strand, accurate positioning and stable support of ventilation pipeline are realized, effectively preventing deviation or torsion during installation and use process;Limiting ring inscribed circle is consistent with ventilation pipeline outer diameter, to ensure that structure adaptation precision.

The utility model provides a toilet paper powder falling rate tester and a powder throwing mechanism thereof, and belongs to the technical field of paper quality detection. The powder throwing device comprises a powder throwing driving mechanism, a plurality of clamping blocks are arranged at the movable end of the powder throwing driving mechanism, the number of the clamping blocks is larger than or equal to 2, a clamping area is formed among the clamping blocks, and at least one clamping block is connected with a clamping block driving assembly capable of driving the clamping block to move so as to shrink or enlarge the clamping area. And a clamped part of the paper fixer is clamped in the clamping area. The clamping force of the clamping blocks on the clamped part can be dynamically adjusted, it can be guaranteed that the clamped part is stably fixed, the clamped part is prevented from loosening or sliding in the swing test process, and the detection precision is guaranteed; the clamped part is uniformly stressed, torsion or deviation caused by single-side pressure application is avoided, and the edge of the clamped part can be prevented from being damaged due to stress concentration due to uniform clamping force distribution of the clamping blocks.

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 belongs to the technical field of batteries, and discloses a cover plate assembly and a battery, the cover plate assembly is connected with a battery cell, the cover plate assembly comprises a cover plate body, a pole, a conductive block, upper plastic cement and an anti-twist block, and the pole is arranged on the cover plate body; the conductive block is electrically connected with one end, deviating from the battery cell, of the pole; the upper plastic is arranged between the conductive block and the cover plate body; the anti-twisting block penetrates through the upper plastic, a containing groove is formed in the surface, deviating from the battery cell, of the cover plate body, an anti-twisting groove is formed in the surface, facing the cover plate body, of the conductive block, and the two ends of the anti-twisting block are inserted into the containing groove and the anti-twisting groove respectively so as to limit the relative positions of the conductive block, the upper plastic and the cover plate body; insulation protrusions are arranged on the surface, facing the cover plate body, of the upper plastic and correspond to the anti-twisting blocks in position, and the insulation protrusions are arranged around the ends, facing the cover plate body, of the anti-twisting blocks. Therefore, the insulating bulge can prevent foreign matters from being electrically connected with the conductive block or the cover plate body, so that the risk of short circuit is reduced, and the safety of the battery is improved.

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 metal 3D printing dental split type pure titanium pile core which comprises a root pile core, a threaded block is integrally formed at the top of the root pile core, a crown pile core is arranged above the root pile core, a threaded groove is formed in the bottom of the crown pile core, the threaded groove is in threaded connection with the threaded block, and the threaded block is in threaded connection with the root pile core. A threaded groove is formed in the top of the threaded block, a circular groove is formed in the top of the threaded groove, two sliding grooves are formed in the outer side wall of the circular groove, inserting plates are slidably connected into the sliding grooves, a circular block is fixed to the top of the threaded block, and an inserting opening is formed in the top of the circular block. When the crown pile core and the root pile core are in threaded connection, the hexagon wrench is inserted into the hexagonal hole and extrudes the pushing plate, the pushing plate drives the inserting plate to move, after the root pile core and the crown pile core are in threaded connection, the inserting plate corresponds to the inserting opening, the hexagon wrench is taken down, the compression spring pushes the pushing plate and the inserting plate to move, the inserting plate is inserted into the inserting opening, and rotation of the crown pile core can be limited. And torsion during occlusion is prevented.

The invention relates to the technical field of steel structure connection, and provides a steel structure connecting structure for an electric iron tower, which comprises a base, reinforcing plates are uniformly fixed on the outer walls of the two sides of the bottom of the base, an anchoring structure is fixed at the bottom end of the base, the anchoring structure comprises a bottom plate fixed at the bottom end of the base, and an anchor point seat is fixed at the bottom end of the bottom plate. Anchor point blocks are evenly fixed to the edge position of the bottom end of the bottom plate. The anchoring structure is arranged, the anchor point block and the anchor point seat are poured in the foundation of the mounting point through concrete, the stability of the whole connecting assembly in daily use can be improved, the structure distribution is uniform, the stress can be effectively dispersed, the structure looseness or deviation caused by wind power, vibration or load change is prevented, and the service life of the connecting assembly is prolonged. The steel structure connecting structure for the electric power iron tower has the function of facilitating stable connection, and the stability of the steel structure connecting structure for the electric power iron tower during use is improved.

The utility model relates to the technical field of mechanical sealing, and discloses an anti-adhesion mechanical sealing assembly with grease added into an M-shaped double-lip ring concave part, which comprises a double-ring sealing structure, a rubber corrugated pipe, a stainless steel straining ring and a stainless steel spring, and the double-ring sealing structure comprises a silicon carbide static ring and an M-shaped double-lip moving ring which are sleeved on a transmission shaft. The silicon carbide static ring is a pressureless sintering graphite silicon carbide ring, the M-shaped double-lip moving ring is a pressureless sintering graphite silicon carbide M-shaped ring, a groove is formed in the connecting face of the M-shaped double-lip moving ring and the silicon carbide static ring, and the section of the connecting face is in an M shape. According to the mechanical sealing assembly, the grease is added into the groove of the M-shaped double-lip ring so that bonding can be prevented, the service life of the product can be longer by reducing the friction coefficient, the abrasion resistance and the lubricity are better by using pressureless sintering silicon carbide and graphite as the movable ring and the static ring, and the mechanical sealing assembly with the grease added into the groove is simple in structure and has the bonding prevention function.

The present application relates to copper aluminum composite waste treatment technical field, provide a kind of copper aluminum composite waste continuous feeding stripping device, including main unit, it includes chassis, the right end top surface of the chassis is fixedly arranged with work stand, the left end of the work stand and the left end top surface of chassis is fixedly arranged with device cylinder;Conveying unit is arranged in the inside of main unit, it includes binding part and the conveying part located in its right side;Stripping unit is arranged in the side of conveying unit, it includes stripping part and the cutting part located in its left side.The present application is cooperated by being provided with binding part and conveying part, so that when copper aluminum composite waste feeding stripping is carried out, copper aluminum waste existing in loose roll form can be quickly wound and positioned, and is quickly conveyed by fixed shape, subsequent stripping operation is facilitated, the feeding time of copper aluminum composite waste can be greatly saved, and subsequent skin cutting stripping is facilitated, work efficiency is greatly improved.

The utility model discloses a patching device for glass production, which relates to the technical field of glass production and comprises a base and an embedded seat, a servo motor is mounted in the embedded seat, the output end of the servo motor is connected with a worm gear reducer, the output end of the worm gear reducer is connected with a chassis, and the top of the chassis is connected with a turntable; a guide frame is fixed to the top of the rotary disc, servo electric cylinders are installed on the two sides in the rotary disc, and the output ends of the servo electric cylinders are connected with a bracket. A glass frame is connected to the top of the bracket, and four universal wheels are connected to the two sides of the bottom of the glass frame correspondingly. The servo electric cylinder and the bracket are arranged, the pre-embedded seat is embedded into the ground, and the top of the pre-embedded seat is flush with the ground, so that the glass frame can be directly pushed to the position above the bracket through the universal wheels, and then the position of the glass frame is adjusted by manually pushing the glass frame by a worker, so that the glass frame can correspond to the bracket; before steering and quick frame changing, the output end of the servo electric cylinder drives the bracket to ascend.

The utility model discloses a Hough joint half body which comprises a half body and a sealing piece half body installed on the half body, the two ends of the sealing piece half body are in one-to-one sealing fit with the two ends of the half body respectively, the side, matched with the sealing piece body, of the half body serves as the inner side, and the other side serves as the outer side. Straight edge sections arranged in the length direction are arranged on the two long edge sides of the inner side walls of the half bodies correspondingly, and straight edge grooves are formed in the positions, corresponding to the two straight edge sections, of the inner side walls of the sealing piece half bodies correspondingly. The straight edge sections of the corresponding long edge sides of the half body are tightly installed in the straight edge grooves corresponding to the two long edge sides of the sealing piece half body respectively. The sealing piece half body is tightly installed through the straight edge section of the half body, the situation that the sealing piece half body is loosened under the action of water pressure due to loose sealing is avoided, and the sealing performance in the follow-up using process is ensured. The utility model further provides the half joint.

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 discloses an endoscope bending tube and an endoscope, a connecting mechanism is arranged between adjacent joints, the connecting structure I comprises a rotating sheet, the rotating sheet protrudes along the axial direction of the joints, the two sides of the rotating sheet are provided with limiting grooves, and clamping parts are arranged in the limiting grooves. The second connecting structure comprises a clamping groove, limiting pieces are arranged on the two sides of the clamping groove, the limiting pieces are arranged at the ends of the joints and extend and protrude, and clamping jaws are arranged at the ends of the limiting pieces. During connection, the limiting pieces surround the two sides of the rotating piece, the clamping jaws are clamped into the limiting grooves in a matched mode, and the clamping jaws abut against the clamping parts during movement. The clamping jaws and the limiting grooves increase the supporting force between the two joints, the reliability between the two joints is improved during bending, and therefore the effect of increasing the bending strength of the bent pipe is achieved, and the bent pipe is not prone to being broken off. And the limiting pieces are used for limiting on the two sides of the rotating piece, circumferential torsion of the two joints is reduced, circumferential torsion of the bent pipe is avoided, and the torsion resistance of the bent pipe is improved.