10887 results about "Crank" patented technology

A seating device with a swinging device is provided. The seating device includes a seat base, a seat, an ottoman, a backrest, and two moving linkages configured to move the seating device from a first position to a second position. Moreover, the seating device includes a swinging device configured to couple between the seat base and the two moving linkages, and drive the two moving linkages to swing relative to the seat base along a front and rear direction. The swinging device includes a swinging actuator; and an eccentric transmitter is configured to transmit a swing actuation torque to the two moving linkages, where the eccentric transmitter includes a crank and a transmission arm, the crank is configured to couple with the swinging actuator, and the transmission arm is configured to couple with the two moving linkage via a universal joint device.

A cranking mechanism preferably includes a planetary gear, a drive shaft, a one way bearing, a clutch assembly, and at least one drive unit. The clutch preferably includes a clutch pressure plate, a flywheel, friction surfaces and at least one friction plate. Each drive unit includes a carrier, a spool and a flywheel. The one way bearing and the clutch assembly are axial on the drive shaft. A pressure locking nut is threaded on to a threaded end of the crank shaft to exert pressure on the clutch assembly. The sun gear is fixed on the drive shaft. The at least one drive unit is axial with the drive shaft, and fixed with the carrier of the planetary gear set. The pressure locking nut is tightened against the clutch assembly to frictionally engage the drive shaft with the at least one drive unit.

The utility model relates to the technical field of clothes care machines, in particular to a swing device and a clothes care machine with the same, and aims to solve the problems that an existing swing device adopting a crank connecting rod structure has the quick-return characteristic and is not high in stability, loud noise exists in the operation process of the swing device, and user experience is affected. In order to achieve the purpose, the swing device comprises a driving mechanism, a swing mechanism and a clothes hanger, clothes are hung on the clothes hanger, the swing mechanism comprises a transmission disc and a transmission block, the transmission block is arranged on the transmission disc and connected with the clothes hanger, the driving mechanism can drive the transmission disc to rotate, and the transmission disc can drive the transmission block to conduct circular motion. Therefore, the clothes hanger swings. According to the swing device, the driving mechanism drives the transmission disc to rotate, the transmission block drives the clothes hanger to swing, the quick-return characteristic of the swing device can be effectively reduced, the swing device operates more stably, the operation noise can be reduced, and the service life is prolonged.

A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to a controller of the bicycle. The controller is configured to instruct an assist motor to activate based on the measured wheel speed and / or the measured crank cadence.

The invention belongs to the technical field of agricultural mechanical equipment, and discloses a well cellar type zero-speed punching transplanter and a well cellar hole forming method.The well cellar type zero-speed punching transplanter comprises a rack and two zero-speed transplanting devices, the zero-speed transplanting devices are driven by a transmission device, and each zero-speed transplanting device comprises a double-crank floating type punching mechanism and a seedling throwing mechanism; the double-crank floating type punching mechanism comprises a horizontal frame, the horizontal frame extends in the advancing direction of the advancing wheels, a double-crank assembly is arranged between the horizontal frame and the rack, a floating type hole head assembly is installed on the horizontal frame, and a hole head limiting assembly is jointly arranged between the floating type hole head assembly and the horizontal frame; upright zero-speed efficient punching is achieved through the double-crank floating type punching device, the problem that a well cellar hole is oval due to relative movement between a well cellar hole head and a soil ridge is solved, the well cellar hole punching quality and efficiency of the transplanter are improved, and the effects of no impact and low noise in the punching process are achieved.

A crossbow with a de-cocking crank mechanism having sprockets preferably includes a cranking mechanism, which utilizes a clutch sprocket and clutch assembly axial to a drive gear, and a one-way bearing axial to a bearing sprocket to cock a crossbow. The clutch assembly includes a clutch sprocket, a flywheel surface, a friction disc, and a pressure plate. The use of a one-way bearing may control the rotation of the drive unit used to wind (take-up) an elongated connecting device. Functional properties of a crank mechanism for the winding and unwinding of the elongated connecting device such as a rope, chord or the like device for pulling a secondary object from a first position to a second position are well known in the art.

An exerciser has a frame, a driving assembly, a damping assembly, and a linkage assembly. The frame has a base, a front supporting rod, and a rear supporting rod, and a grip assembly. The driving assembly is mounted on the frame and has a gear box and two cranks. The gear box is mounted in the rear supporting rod and has a box body, an input axle, an input gear, two unidirectional bearings, an output gear, and multiple transmission gear sets. The input axle is mounted rotatably in the box body. The input gear is co-axially mounted securely on the input axle. The unidirectional bearings are mounted respectively on two ends of the input axle. The transmission gear sets are mounted between and engaged with the input gear and the output gear. Each crank has a first end connected with one of the unidirectional bearings.

The invention relates to the technical field of robots, and discloses a waist joint driving structure of a robot, a waist driving structure of the robot, the robot and a humanoid robot. The waist joint driving structure mainly comprises a crank, a bearing, a supporting piece and a waist joint module, an output flange of the waist joint module is connected with the connecting end of the crank in an assembled mode, the supporting piece is connected to the output end of the waist joint module in an assembled mode, and the bearing with the supporting function is arranged between the supporting piece and the crank. The outer ring of the bearing abuts against the inner ring of the supporting piece, and the inner ring of the bearing abuts against the shaft sleeve on the connecting end. By means of the arrangement, the crank forms bilateral support through the bearing at the output end in the waist joint module and the bearing between the crank and the supporting piece, the problem of bias pressure can be avoided, and damage to the joint module is avoided.

A chainring assembly includes a chainring carrier adapted to be coupled to a crank arm. The chainring carrier is rotatable about a rotation axis and includes an outer periphery having carrier threads. A chainring structure includes an inner periphery having chainring threads and an outer periphery comprising a plurality of teeth. The inner periphery of the chainring structure is threadably engaged with the outer periphery of the chainring carrier. In one embodiment, a power meter device includes a body having a torque input section and a torque output section, with the torque output section including an outer periphery having threads adapted to be coupled to a chainring structure.

The invention relates to the technical field of agricultural automation, in particular to a multi-layer three-dimensional cultivation automatic transplanting robot for a plant factory, the multi-layer three-dimensional cultivation automatic transplanting robot comprises a cultivation frame, a seedling raising plate is arranged on the side face of the cultivation frame, and the robot comprises a control module, a visual module, a positioning module, a moving module and a clamping module. Comprising a clamping unit and a clamping seat, the clamping seat is fixedly connected with a moving seat, a plurality of lifting units are arranged below the clamping seat, the clamping unit comprises a clamping block detachably connected with the lifting units, a clamping motor is arranged in the clamping block, a plurality of clamping grooves are formed in the lower end face of the clamping block, and clamping jaws are movably arranged in the clamping grooves. A crank is further arranged in the clamping block, the two ends of the crank are connected with the output end of the clamping motor and the clamping jaw respectively, opening and closing actions of the clamping jaw are achieved, by means of the design, the robot can accurately clamp and release the field planting basket, and the transplanting accuracy and consistency are improved.

The invention discloses a transmission assembly assembling device which comprises a rotary disc assembly, a synchronous material taking and assembling unit, a pawl material taking and assembling mechanism, a shaft sleeve material taking and assembling mechanism, a bearing material taking and assembling mechanism, a pressing mechanism and a discharging mechanism, and the pawl material taking and assembling mechanism, the shaft sleeve material taking and assembling mechanism, the bearing material taking and assembling mechanism, the pressing mechanism and the discharging mechanism are all installed on a workbench. The synchronous material taking and assembling unit comprises a ratchet ring material taking and assembling mechanism, a crankshaft material taking and assembling mechanism and a gasket material taking and assembling mechanism which are installed on the first translation module and located above the rotary disc assembly, and a ratchet ring material conveying mechanism, a crankshaft material conveying mechanism and a gasket material conveying mechanism are arranged at the first working position of the synchronous material taking and assembling unit; the second working position of the synchronous material taking and assembling unit is matched with the third assembling positioning hole, a shaft sleeve conveying mechanism is arranged at the first working position of the pawl material taking and assembling mechanism, and a bearing conveying mechanism is arranged at the first working position of the bearing material taking and assembling mechanism. Automatic assembly can be achieved, and the assembly efficiency is improved.

A frame for a shading product and a beach umbrella is provided. The frame for a shading product includes a central rod, a plurality of top frame units, a first slider arranged on the central rod and an extension rod. Each top frame unit includes a first top rod rotatably connected to the central rod and a second top rod. Each second top rod is rotatably connected to the first slider, and the first top rods, the second top rods, the central rod and the first slider form crank-slider mechanisms. The extension rod is pivotally connected to one top frame unit to allow the extension rod to flip upwards relative to the top frame unit when the frame for a shading product overturns on its side to the ground.

The present disclosure relates to a maglev bogie, in particular to a maglev bogie with a centering function and a guiding method thereof. The maglev bogie comprises a maglev guide frame, crank arm brackets, guide wheels, first onboard magnet groups and cylindrical gears, wherein the crank arm brackets are hinged to the four corners of the top and bottom of the maglev bogie, the guide wheels are rotatably connected to the ends of the crank arm brackets, two first onboard magnet groups are slidably connected to each of the two inner sides of the upper part of the maglev guide frame, some of the cylindrical gears are connected to the top of the maglev guide frame where the upper crank arm brackets are hinged, two of the cylindrical gears are rotatably connected to each of the two sides of the top of the maglev guide frame, and every two adjacent cylindrical gears are meshed with each other. With the arrangement of the crank arm brackets, the guide wheels and the cylindrical gears, when the guide wheels on one side is squeezed by overhead track beam and displaced, the guide wheels on the other side can be synchronously driven to displace, so as to ensure a centered state of the maglev guide frame, the first onboard magnet groups, the overhead track beam and beam-borne magnetic track.

An umbrella comprises a column having a middle portion; an upper nest; a lower nest; a plurality of long rods; a plurality of short rods each; a crank handle assembly disposed on the middle portion of the column. The lower nest has a plurality of first long rod grooves on a periphery of the lower nest; the crank handle assembly comprises a housing and a crank handle, correspondingly, the housing has a plurality of second long rod grooves. The umbrella of the present invention is simple and reasonable in structure, greatly reduced in size and convenience to store and carry, and reduces the cost for packaging and transportation.

The invention discloses a medium presser foot mechanism control method and a medium presser foot mechanism, and the method comprises the following steps: a control unit controls the rotation of a main shaft motor, a medium presser foot motor and a feeding motor according to a target pattern parameter, and obtains a target sewing stitch; the control unit obtains a given material pressing angle range from the expected material pressing angle range according to the cloth thickness and the sewing speed; the control unit obtains a given middle presser foot stroke from the expected middle presser foot stroke according to the cloth thickness and the middle presser foot height; according to the middle presser foot mechanism, a motor drives a crank, fisheye connectors A and B, a connecting rod, a pressing rod guide frame and other assemblies, and follow-up vertical movement of a middle presser foot is achieved. A motor is fixed through a support, an output shaft is connected with a driving crank, and the driving crank drives a fisheye connector A to be connected with a connecting rod and transmits motion to a pressing rod and a middle pressing foot. The pressing rod guide frame plays a guiding role and limits rotation of the pressing rod. The induction plate is arranged on the driving crank, when the middle presser foot is lifted to the highest point, the sensor can sense the induction plate, and position feedback is achieved.

The utility model discloses a fishing rod with a line arranged inside, which comprises a rod body, a mounting rack, an adjusting knob and a rocking handle, and the rod body is provided with a mounting groove; a transmission shaft is rotationally connected to the mounting frame in the axial direction of the rod body, a force unloading piece is arranged at one end of the transmission shaft, a winding reel sleeves a main body of the transmission shaft, one end of the winding reel abuts against the force unloading piece, a rotating shaft is rotationally connected to the mounting frame in the radial direction of the rod body, and the rotating shaft is in transmission connection with the transmission shaft and used for driving the transmission shaft to rotate; the adjusting knob is in threaded connection with the tail part of the mounting frame and is propped against the winding reel; the rocking handle is arranged in the mounting groove and comprises a driving arm, a handheld part and a supporting frame, one end of the driving arm is in driving connection with the rotating shaft, the other end of the driving arm is rotationally connected with the handheld part, the driving arm is close to the supporting frame, and the supporting frame is movably connected to the mounting frame so that the driving arm can be exposed or hidden in the mounting groove. According to the technical scheme, the stability and effectiveness of force unloading of the fishing rod with the inner line are enhanced, and the portability of the fishing rod with the inner line is improved.

According to the new energy automobile engine crankshaft near-net-shape forming process method, a placing mechanism comprises a placing box, two opening and closing doors are installed on the front side of the placing box, the two opening and closing doors are arranged in a bilateral symmetry mode, and observation windows are arranged on the opening and closing doors; through mutual cooperation of the L-shaped fixing plate, the clamping gear, the central gear, a rocking handle, a fixing plate, an annular plate, a guide plate, a sliding plate, a clamping plate, an attaching rod, a driven groove wheel, a belt, a driving groove wheel, a motor, a bottom plate and the like, when a crank needs to be dyed, the crank can be clamped and fixed, meanwhile, the crank can be driven to rotate, and the crank can be conveniently and rapidly dyed. According to the crank dyeing device, through mutual cooperation of the vertical plate, the lifting plate, the transverse plate, the vertical pipe, the connecting rod, the circular plate, the pretreatment box, the cleaning agent box, the coloring agent box and other parts, the crank can be pretreated, colored and cleaned.

The invention provides a test device for simulating ejection impact load, which is characterized in that side columns of the test device are fixedly arranged, a movement guide rail is arranged on the inner wall of each side column along the vertical direction, a variable stiffness spring is arranged below each movement guide rail, and an electromagnet is arranged at a certain height between the two side columns. The load block is connected with the electromagnet under the magnetic force effect of the electromagnet, the two ends of the load block are slidably connected with the movement guide rails, the impact force sensor is arranged on the load block, the lower bottom face of the impact force sensor is flush with the lower end faces of the two ends of the support, and the model box is arranged below the load block and filled with soil. The surface of a soil body in the model box is flush with the upper end face of the variable-rigidity spring, each crank pulley mechanism is arranged on the corresponding side column and located above the variable-rigidity spring, and after the load block impacts the soil body for the first time and bounces, limiters in the crank pulley mechanisms move to the movement guide rails to prevent the load block from impacting the soil body again.

The invention relates to the technical field of robots, in particular to a dexterous hand finger, a dexterous hand and a robot, and solves the problems that the dexterous hand capable of realizing motion decoupling between two degrees of freedom of bending and side swaying of the dexterous hand finger is complex in structure and poor in reliability. The dexterous hand finger comprises a side swing assembly, a first knuckle, a first connecting rod assembly, a second connecting rod assembly, a first driving assembly and a second driving assembly. The side swing assembly, the first knuckle, the first connecting rod assembly, the second connecting rod assembly and the first driving assembly form a space crank sliding block mechanism so as to drive the knuckles to rotate around the second axis, and bending of the first knuckle is achieved. And the knuckles can rotate around the first axis under the driving of the second driving assembly, so that the lateral swinging of the first knuckles is realized. The first end of the second connecting rod assembly and the second end of the first connecting rod assembly form a spherical pair, motion decoupling between the two freedom degrees of bending and side swing is achieved, the structure is simple, and the reliability of the dexterous hand finger is improved.

The invention relates to the field of machine tool accessories, in particular to a disc type tool magazine with a tool self-locking function. A support shaft and a main turntable; the mounting disc is mounted on the main rotating disc; the connecting rods are mounted in mounting openings uniformly formed in the mounting disc in the circumferential direction; the mounting plate is fixedly arranged at the top of the supporting shaft; the telescopic push rod is mounted on the mounting plate; the moving frame is slidably arranged on the telescopic push rod and is driven by the telescopic push rod; a connecting crank is arranged on the cutter sleeve, and the cutter sleeve is movably hinged to the connecting rod through the connecting crank; and the self-locking mechanism is arranged at the root part of the cutter sleeve and is used for completing self-locking on the cutter. The self-locking mechanism can provide a stable clamping effect after the tool is arranged in the tool sleeve, the tool is arranged in the tool sleeve and cannot shake in the operation process of the tool magazine, the risk of tool damage is avoided, and meanwhile, the tool cannot fall off in the process of rotating along with the tool sleeve.

There is provided a powertrain of a mid-drive electric bicycle that enables regenerative braking. The powertrain comprising a mid-drive electric motor, a chain rotatably connected to the mid-drive electric motor, a gearing system mounted in a rear wheel bub, the gearing system rotatably connected to the chain, a mechanical brake connected to a component of the gearing system, and a control system. During operation of the mechanical brake, the gearing system is configured to cause rotation of the chain in a backward direction opposite to the forward driving direction, which mechanically forces the mid-drive electric motor to rotate in the backward direction, to thereby regenerate electric energy. There is further provided a crankset configured to prevent rotation of pedals of the electric bicycle in a backwards driving direction during backwards rotation of the chain in braking mode.

The invention provides a rod-pumped well working condition monitoring knowledge base construction method based on theoretical electric power reconstruction, and belongs to the technical field of oil field informatization construction. Actually-measured electric power curves of all working conditions of a rod-pumped well and corresponding oil pumping unit parameters are obtained, and an electric power historical data set is formed; establishing a relational expression among the suspension center displacement, the suspension center load, the electric power and the crank angle; establishing an electric power to suspension point indicator diagram model, and calculating a suspension point indicator diagram corresponding to the actually measured electric power curve; a theoretical indicator diagram generation method is adopted, and the suspension point indicator diagram obtained through calculation is converted into a theoretical indicator diagram; establishing a suspension point indicator diagram to electric power conversion model, and calculating a theoretical electric power curve corresponding to the theoretical indicator diagram; and extracting shape features of the theoretical electric power curve and the actually measured electric power curve, and establishing a rod-pumped well working condition monitoring knowledge base by utilizing an electric power historical data set. The theoretical electric power curve can be automatically calculated according to the actually measured electric power curve, and expert participation is not needed.

The invention relates to the technical field of bionics, in particular to a bionic crawling device which comprises a support, a driving unit and at least one pair of crawling mechanisms, and each pair of crawling mechanisms comprises two space crank structures; a phase difference exists between actions of the two space crank structures, and the tail ends of the outer sides of the two space crank structures are located at low positions in turn to bear the support; the space crank structure comprises an inner crank, a first fulcrum and an outer crank which are sequentially connected, the driving unit is used for driving the inner crank to do conical motion, the first fulcrum is rotationally connected to the support, the inner crank is arranged in the support in a translational motion mode, and the outer crank is arranged outside the support in a translational motion mode. Each pair of crawling mechanisms can be driven to act through one driving unit, the number of driving sources is small, the production and manufacturing cost is low, the space crank structure is good in working stability and small in occupied space, use of connecting rods and exposure of unnecessary parts are reduced, the bionic crawling device can be made more refined, and the service life of the bionic crawling device is prolonged. During crawling, the fluctuation range is small, and the crawling stability is good.

A powered ratchet tool includes a housing and a motor disposed within the housing. The motor has an output shaft rotatable about a first axis. The powered ratchet tool further includes a ratchet mechanism supported by the housing and operably coupled to the output shaft to be driven by the motor. The ratchet mechanism has a crankshaft assembly defining a variable crank radius configured to change an extent of each rotational stroke of the ratchet mechanism. Moreover, the powered ratchet tool includes an output drive operably coupled to the ratchet mechanism to be rotated about a second axis perpendicular to the first axis.

The utility model relates to production equipment for spraying and winding a thermal insulation pipe. The production equipment comprises a rack, a pipeline supporting assembly, a pipeline conveying assembly and a pipeline cutting assembly, the pipeline supporting assembly is used for supporting the heat preservation pipe and comprises at least two electric rollers, and the two electric rollers are arranged in a spaced mode and supported on the two sides of the heat preservation pipe correspondingly. The pipeline conveying assembly is used for conveying heat preservation pipes and comprises a supporting plate, the supporting plate is horizontally arranged between the two electric rollers, and a plurality of conveying driving mechanisms are arranged on the lower side of the supporting plate. Each conveying driving mechanism comprises a crank, a connecting rod and second driving equipment, the crank is rotationally mounted on the rack, one end of the connecting rod is hinged to the crank, and the connecting position deviates from the rotation center of the crank; the other end of the connecting rod is fixedly connected with the supporting plate; the second driving device is in transmission connection with the crank and drives the crank to rotate around the rotation center of the crank. The pipeline cutting assembly is used for cutting off the heat preservation pipe. Conveying of the heat preservation pipe is achieved, abrasion is not prone to occurring, and the stability of equipment is ensured.

The invention discloses a mahjong machine and a horizontally-pushing tile feeding device and a tile supporting plate transmission mechanism thereof, the mahjong machine comprises a tile feeding seat, a tile supporting plate, two tile feeding curve cams, two tile feeding rocker arms, two tile feeding rocker arm shafts, two tile feeding rocker arm cams and two first gears, the tile feeding rocker arm cams are fixedly connected with the tile feeding rocker arm shafts, cam grooves are formed in the tile feeding rocker arm cams, and the tile supporting plate transmission mechanism is arranged on the tile feeding seat. The first gear is rotatably mounted on the mahjong feeding seat and is in matched transmission with the mahjong feeding rocker arm cam through a crank; and the two first gears are driven by a horizontal pushing mahjong tile feeding motor to rotate synchronously. According to the scheme, the gear transmission mechanism is adopted, the cam is installed on the mahjong tile feeding rocker arm shaft and is in matched transmission with the mahjong tile feeding rocker arm shaft through the crank gear, transmission torque is large, stability and synchronism are better, the torque transmission capacity and bearing capacity of the mechanism are improved, the supporting strength of the mahjong tile supporting plate is improved, the transmission structure is more reasonable, and lifting of the mahjong tile supporting plate is smoother and more reliable; installation and debugging are more convenient, and maintenance, disassembly and assembly are more convenient.

A pedal crank drive having a pedal crank (12) and a chain ring (14), which can be connected to each other in a rotationally fixed manner to form a unit (10), the unit (10) having a spindle hole (16) for a bottom bracket spindle. The chain ring (14) has a first connecting contour (18) and the pedal crank (12) has a second connecting contour (20), wherein the connecting contours (18, 20) can be fitted into one another in an assembly position, and the pedal crank (12) and the chain ring (14) can be rotated relative to one another around the spindle hole (16) to a stop position in which the stop surfaces (22, 24) of the pedal crank (12) and the chain ring (14) abut against each other.

The crawler-type mobile welding robot comprises a main body mechanism, a control mechanism, a welding mechanism and a welding detection mechanism, the main body mechanism comprises a chassis, crawler wheels are symmetrically installed on the two sides of the bottom of the chassis, a control cabinet is fixedly installed on the top of the chassis, and a welding mechanical arm is installed on the chassis; a crank is mounted at the tail end of the welding mechanical arm through a shaft; the control mechanism is mounted in the control cabinet; crawler wheels of the main body mechanism are adapted to complex terrains, the welding mechanism is used for executing a core welding task, and a welding mechanical arm is used for flexibly adjusting poses to be matched with a welding system in an industrial personal computer to achieve automatic welding actions; the ultrasonic detection probe is stably attached to the workpiece under the action of the first spring, an operator does not need to manually smear a coupling agent, and the ultrasonic flaw detection equipment does not need to be manually controlled for welding detection.

The circulating fan with the fork arm supporting structure comprises a fan body and a base, the fan body is arranged in a fork arm, the fan body is provided with a motor shell and a fan blade motor, the fan body is provided with an up-down swing driving mechanism, and the up-down swing driving mechanism comprises a first motor, a first crank, a first connecting rod, a swing arm and a force transmission arm; one end of the first crank is installed on an output rotating shaft of the first motor, the other corresponding end of the first crank is hinged to one end of the first connecting rod, the other corresponding end of the first connecting rod is hinged to one end of the swing arm, the other corresponding end of the swing arm is in positioning connection with one end of the force transmission arm, and the other corresponding end of the force transmission arm is in positioning connection with the fork arm. The first motor is installed in the rear portion of the motor shell, and the first crank, the first connecting rod and the swing arm are arranged in the motor shell. According to the circulating fan, the reliability of the up-down swing driving mechanism is better, and the visual effect of the circulating fan is improved.

The utility model discloses a pipe fitting clamping mechanism, and particularly relates to the technical field of pipeline processing, the pipe fitting clamping mechanism comprises a supporting seat, a screw rod I is rotatably mounted in the supporting seat, one end of the screw rod I is connected with a hand crank outside the supporting seat, the outer side of the screw rod I is sleeved with a sliding seat in threaded connection, and the sliding seat is located on the inner side of the supporting seat; a connecting plate is arranged at the top of the sliding seat, and the connecting plate is connected with the sliding seat through a connecting assembly. Through the clamping mechanism, a bevel gear II can be driven by a motor so as to drive a double-sided gear ring to rotate, so that a plurality of bevel gears I are driven by the double-sided gear ring to drive threaded cylinders to rotate, and a plurality of threaded cylinders are driven to drive clamping plates to move; the pipeline clamping device can be suitable for clamping and fixing pipelines with different specifications and diameters, the application range is wider, and the practicability is higher; through the connecting assembly, the clamping seat and other parts connected with the clamping seat can be conveniently and integrally disassembled, and the clamping seat and the other parts can be conveniently disassembled, maintained or replaced.