32results about How to "Achieve free swing" patented technology

The invention relates to a driving device and method of air conditioner swing blades and an air conditioner. The driving device is used for driving the swing blades of an air outlet of the air conditioner and comprises a motor, an electromagnetic clutch and a gear set, wherein the electromagnetic clutch and the gear set are electrically connected with the motor. The gear set comprises a plurality of gears engaged in sequence. An output shaft of the motor is fixedly connected with a gear shaft of one gear. One swing blade is fixed to the side surface, away from the motor, of each gear. When the multiple gears rotate at the same time, at least two of the multiple gears are different in rotation angle. According to the driving device, the rotation angle of one driving gear is set to be larger than the rotation angle of the corresponding linkage gear, so that the swing blade on one driving gear and the swing blade on the corresponding linkage gear are different in rotation angle, namely the swing blades can freely swing in various postures, and the swing blades can be adjusted to the comfortable air outlet posture according to needs.

The invention discloses a device for testing a stable platform, which comprises a measurement bench unit and a rotary base unit. The measurement bench unit is made of a non-magnetic or weak magnetic material, which can effectively reduce the interference on the stable platform so as to ensure the accuracy of a test result; the measurement bench provides the stable platform with a required rotation speed of a generator, a rotation speed of a drill collar and a load torque, and can simulate underground working conditions; and a measurement system can obtain parameters of a rotation angle and a rotation speed of the stable platform, the rotation angle, the rotation speed and an output torque of an output shaft, an inclined angle of a test bed and the like, thereby verifying whether the performance parameters of the stable platform are correct. The rotary base unit can realize free oscillation of a platform in a spatial vertical plane and free rotation of the platform around the central axis of the base, thereby simulating well deviation and the change of an orientation parameter, and verifying whether the stable platform works stably and accurately.

The invention discloses a wood floor hand-scraped grain machining device. The machining device comprises a lifting mechanism (1), a swing mechanism (2), a material floating mechanism (3), a cutting mechanism (4) and a dust suction device (5), wherein the swing mechanism (2) and the material floating mechanism (3) are installed on the lifting mechanism (1), the cutting mechanism (4) is installed on the swing mechanism (2), and the dust suction device (5) is installed on the cutting mechanism (4). The wood floor hand-scraped grain machining device is reasonable in structural design, convenient to operate, high in intelligentization and automation degree, capable of saving manpower and material resources greatly, high in production efficiency, low in production cost, capable of machining archaistic wood floor through groove type scraped grain and segment type scraped grain and high in practicability and has the function of adjusting the length and the depth of the segment scraped grain.

The invention relates to an H-type suspension frame type running mechanism, which comprises two suspension frame type running mechanism units. The suspension frame type running mechanism units are formed by a suspension type swing bolster structure and a vehicle body connection structure, wherein the suspension type swing bolster structures comprise a suspension arm, a flexible support component and a swing bolster, wheel-pair H-type suspension units are formed, and clearances of a front electromagnet array, a rear electromagnet array, a left electromagnet array and a right electromagnet array can be changed in a self-adaptive way along with dynamics of a curve; and the vehicle body connection structures comprise a central pin and an arc-shaped sliding side bearing. When a maglev vehicle runs across the curve, the front suspension frame unit and the rear suspension frame unit can rotate horizontally relative to the vehicle body along with changes of the curve size of the line, the clearance of the left electromagnet array and the right electromagnet array can be changed dynamically along with the ''gauge'' of the line, suspension electromagnets can be better fitted with the line along with ultra-high and gentle-slope curves of the line, and the vehicle can smooth run across the curves. Therefore, by adopting the mechanism, free swinging of the front running unit, the rear running unit and the vehicle body can be realized, self-adaptive adjustment of the suspension electromagnets to be fitted with the line can also be realized, requirements of complete decoupling kinematics of the suspension frame type running mechanism can be satisfied, and true complete decoupling can be achieved.

The invention discloses a sole control type lower limb energy storage power-assisted mechanism. The sole control type lower limb energy storage power-assisted mechanism comprises a thigh rod, a thigh bandage, a knee joint energy storage device, a shank rod, an air spring, a ball joint, a bottom plate and a spring. In the using process, the thigh rod is bound to a thigh through the bandage. Man-machine coupling and multi-degree-of-freedom passive walking assistance are achieved according to the human body walking gait principle, the energy storage requirement is met through bending of a coil spring, full utilization of energy is achieved through cooperative use of the air spring, and free and smooth switching between a working state and a non-working state is achieved through cooperative use of an electromagnet and meshing teeth. In the daily walking process, the sole control type lower limb energy storage power-assisted mechanism can help people to share loads of knee joints and achieve load bearing and energy storage in the supporting phase so as to assist stretching in the later period of the supporting middle period; and meanwhile, sufficient power is provided for lifting the legs in the pre-swinging period, and the legs can swing freely in the swinging period without interfering with normal movement of the human body.

The invention relates to a wireless capsule OCT (optical coherence tomography) endoscope system for gastrointestinal tract diagnosis and treatment. The wireless capsule OCT endoscope system comprises an intelligent capsule, a wearable device and a displayer, wherein the wearable device comprises a transmitting circuit, a transmitting coil and a data processor. The intelligent capsule comprises a capsule casing, an OCT imaging probe, an optical fiber coupler, a light source module, a photoelectric detector, an A / D (analog / digital) converter, a data transmitter, a receiving circuit and a receiving coil, wherein the capsule casing comprises a head, a neck, a body and a tail, the OCT imaging probe comprises a lens assembly, an MEMS (micro-electro-mechanical system) micromirror, a reflecting mirror and a probe window, and one beam of light of a shunt of the optical fiber coupler is reflected by the MEMS micromirror through the lens assembly and then irradiates via the probe window while another beam of light of the shunt of the optical fiber coupler is transmitted to the reflecting mirror. The wireless capsule OCT endoscope system for gastrointestinal tract diagnosis and treatment has the advantages that by the aid of the endoscope system, non-invasive detection of in-vivo tissues of humans can be achieved; the endoscope system with micron-grade high resolution is capable of imaging in real time, and omni-directional scanning can be achieved according to a swing design of the head of the capsule casing.

The invention belongs to the technical field of household electrical appliances and provides a multifunctional electric fan. The multifunctional electric fan comprises a fan body, a support, a base, a power module, a control panel and a negative ion generator; the fan body comprises fan blades, a mesh enclosure and a motor; the fan body is connected with the base through the support; and the negative ion generator is fixed to the exterior of the mesh enclosure, is in electric signal connection with the power module and is in control signal connection with the control panel. According to the multifunctional electric fan, by installing the negative ion generator on the electric fan, air eddy formed through the air supply of the fan blades of the electric fan is utilized, generated negative ions are diffused into the indoor space, and therefore the concentration of the negative ions in air is increased, and the function of purifying the air is achieved during cooling.

The invention relates in particular to the field of mechanical technology. The all-terrain electric power-assisted tricycle includes a tricycle main body, and the tricycle main body includes a body support on which a first rotating shaft is rotatably connected. The left side of the first rotating shaft is connected with the left wheel through a left ball stud, and the right The side is connected with the right wheel through a right ball stud pin; the first rotating shaft is arranged crosswise with the frame of the vehicle body. The invention can realize the free swing of left and right wheels through the left and right rotating shafts, is suitable for various terrains, does not easily cause the vehicle body to tilt and overturn, and increases safety. The invention can realize the free swing of the wheel through the left and right ball stud pins.

The invention provides a soldering method and soldering device for storage tank flip method, the soldering method comprises the steps of a, preparing a trolley for a bury arc soldering machine; b, rotationally connecting a soldering tip monitor pipe at the other end of the cross beam, mounting the soldering tip at the other end of the soldering tip monitor pipe; c, mounting a spring between a spring back plate and the soldering tip monitor pipe; d, fixedly mounting a soldering tip assist walk mechanism in the middle of the soldering tip monitor pipe; e, fixedly mounting a ring shape soldering machine walk rail set along the circumferential direction through a screw bolt at the top end of a rail installation support; f, placing the trolley of the bury arc soldering machine on the soldering machine walk rail, before the soldering, the operation staff turning around the soldering tip monitor pipe and keeping aligned an opening of the soldering tip and a soldering seam, adjusting the walk monitor wheel and keeping connected with a storage tank side wall steel, switching on a control box to start the soldering operation. The soldering method and the soldering device produces good effects in the method of automatic bury arc soldering and non bury arc automatic soldering in the flip large scale steel structure storage tank scheme.

The invention relates to a bearing pad machining method, in particular to a bearing pad machining method, and aims to solve the problems that in the prior art, within the 150 mm length range of a bearing pad, the machining difficulty is increased due to the fact that the wall thickness size of the pad meets the tolerance requirement of 0.01 mm, and the size precision of the pad is difficult to guarantee. The technical problem is solved through the following scheme that firstly, a blank is prepared; 2, turning machining is carried out; thirdly, bearing alloy is poured; fourthly, semi-finish turning is conducted; step 5, aging treatment; sixthly, the end face is subjected to finish turning; step 7, scribing; eighthly, linear cutting machining is conducted; 9, turning an inner hole; tenthly, the inclined face and the radiating face of the arc-shaped body are machined through linear cutting equipment according to the contour line in the seventh step; 11, processing a back arc and a positioning hole; and twelfthly, coping treatment is conducted. The machining method belongs to the field of machining.

The invention discloses a self-propulsion multifunctional construction ship with supporting legs. The ship comprises a ship body, the ship body comprises a function room and an operation room, the function room is located on the rear portion of the ship body, the front side of the function room is provided with the operation room, an operation table is mounted in the operation room, a work arm ishinged to the front end of the operation room, four telescopic legs are symmetrically mounted on the front, back, left and side portions of the bottom end of the ship body, a propeller device is mounted on the rear end of the ship body, according to the multifunctional construction ship which is provided with the supporting legs and can navigate on the water, in the construction process, breakingcan be self-cleaned, various building waste and life waste can be filtered, concentrated recycling storage processing is carried out, the environment-friendly performance can be improved, the multifunctional construction ship is integrated with backacting shovel dredging, cutter-suction dredging and pile driving work, single-ship work is carried out, a wharf boat excavator is not needed, a single-function cutter-suction ship is not needed, a drag wheel is not needed, an anchor boat is not needed, and one-machine multiple functions can be achieved in a real sense.

The invention discloses an elbow joint of a mechanical arm. The elbow joint comprises a big arm, a small arm, a driving assembly and a transmission assembly. The big arm is a support arm used for achieving movement of the elbow joint. An installing seat is arranged in the big arm. The small arm is an executive component connected with the big arm to achieve the movement of the elbow joint. The driving assembly is a driving component which is arranged in the installing seat and is used for achieving movement of the elbow joint. The transmission assembly is a transmission component which is arranged in the installing seat and transmits driving force of the driving assembly to the small arm. The transmission assembly comprises a right angle type planetary reducer, a belt transmission part anda chain transmission part which are in transmission connection sequentially. The chain transmission part is connected with the small arm and drives the small arm to move to achieve driving of the elbow joint. According to the elbow joint of the mechanical arm, through combined type transmission of the belt transmission part and the chain transmission part, the structure is more compact, the layout is more reasonable, free swinging of the elbow joint is achieved, manufacturing is convenient, and cost is low. A movement method is convenient to operate, transmission is precise, control is simpler and more convenient, the whole elbow joint is more compact, and swinging is more flexible.

The invention discloses a measuring device, which is used for accurately measuring a sensitive signal at any position in a three-dimensional space, and comprises a detection module, a motion module and a control module, the motion module is connected with the detection module, the control module is connected with the motion module, the motion module is connected with a to-be-detected module, the motion module comprises at least three telescopic units, the detection module is driven by the telescopic units to move relative to the to-be-detected module, and the detection module obtains a single signal value of the position in the space of the to-be-detected module. Under the control of the control module, a signal value of a required position in the three-dimensional space is solved.

The invention relates to a special bracket for continuously casting a long nozzle, belonging to the technical field of metal casting tools. The special bracket comprises a supporting table arranged at the end part of a manipulator cantilever and a supporting ring which is divided into two half supporting rings, wherein the supporting table forms a C shape enclosing one of the two half supporting rings mainly by a base plate and two supporting plates symmetrically fixed at two sides of the base plate; one ends of the supporting plates are made into a Y-shaped opening in which a rotating seat is clamped, the supporting ring is movably connected with the rotating seat, an arc-shaped groove is arranged in the Y-shaped opening, an arc-shaped raised line matched with the arc-shaped groove is arranged on the outer surface of the rotating seat, the minimum external diameter of the rotating seat is smaller than the minimum caliber of the Y-shaped opening, and the minimum caliber of the Y-shaped opening is smaller than the diameter of the arc-shaped groove. The special bracket is free of influence of high temperature and steel slag and can effectively realize free swing when being repeatedly and accurately butt-jointed with a bale after the long nozzle is hooped and fixed by the supporting ring.

The invention discloses a wireless capsule endoscope system for gastrointestinal tract diagnosis and treatment. The wireless capsule endoscope system for gastrointestinal tract diagnosis and treatment comprises an intelligent capsule, a wearable device and a displayer, wherein the wearable device comprises a transmitting circuit, a transmitting coil and an image data processor. A capsule casing comprises a head, a neck, a body and a tail, the head is connected with the neck in a swingable manner, the neck is provided with a swing driving portion and a motor, a push spiral is arranged on the outer surface of the body, two ends of the body are rotatably connected with the neck and the tail respectively, and the tail is provided with a second motor for driving the body to rotate. A receiving coil is electromagnetically coupled with the transmitting coil to generate induction current, the input end of a receiving circuit is connected with the receiving coil to receive the induction current, and the output end of the receiving circuit is used for providing powder for all components. The wireless capsule endoscope system for gastrointestinal tract diagnosis and treatment has the advantages that a lens shift adjuster adjusts a focal distance of a lens so as to obtain clearer images, and the swing design of the head is beneficial to achievement of omni-directional examination.

The invention discloses a one-way movable three-layer composite damping device, which comprises an upper seat plate, an upper pendulum, a block assembly, a connecting hinge shaft, a ball pendulum and a lower pendulum. The upper pendulum and the upper seat plate slide relatively to form a plane The sliding layer; the relative rotation between the upper pendulum and the ball pendulum forms a rotating layer; the relative swing between the ball pendulum and the lower hem forms a swing layer; the upper seat plate and the upper pendulum, the upper pendulum and the ball pendulum, and the ball pendulum and the lower hem constitute three layers Composite structure; the block assembly is arranged on both lateral sides of the upper seat plate, the upper part of the block assembly is separated from the upper seat plate, and the lower part of the block assembly is fixed by connecting the hinge shaft and the hem. During normal operation, the ball pendulum does not rotate, and there is no vertical displacement at the end of the beam, which is beneficial to the stability of the bridge; during an earthquake, the upper seat plate can transition smoothly without impact; when the horizontal shear force is greater than the shear force of the shear pin, the shear force When the pin is sheared and fails, the block assembly no longer limits the lateral direction of the upper seat plate, and the entire shock absorbing device can move bidirectionally to realize the free swing of the entire shock absorbing device.

The invention discloses a telescopic wind-resistant pull rod mechanism. The telescopic wind-resistant pull rod mechanism comprises a combined sleeve, an adjusting stud, a pull rod, a hydraulic lockingdevice, a turning connector and a folding swing rod, wherein the combined sleeve mainly consists of a circular tube profile and an adapter sleeve which is welded at the bottom of the circular tube profile and is provided with threads on the inner wall, the adjusting stud stretches into the adapter sleeve, guides the pull rod in the axial direction and in threaded connection with the adapter sleeve at the same time, the top end of the pull rod is connected to a nut, the tail end of the pull rod is provided with a handle, the hydraulic locking device comprises a pull rod oil cylinder, a hingedsupport connected to the middle of the pull rod oil cylinder and a ball head located at the tail end of an oil cylinder rod, the upper end of the turning connector is connected to a hinge shaft at thetop of a wind-resistant body, the lower end of the turning connector is hinged to the top of the sleeve, the handle of the pull rod is movably connected to the ball head during working, and the adapter sleeve is connected to the folding swing rod through a bolt when the pull rod is folded. According to the telescopic wind-resistant pull rod mechanism, the pull rod mechanism is compact in structure, small in occupied space and convenient to use, and the erecting and withdrawing time is saved.

The invention belongs to the technical field of sealing members, and in particular relates to a reciprocating eccentricity prevention oil sealing device, and an application method and application thereof. The reciprocating eccentricity prevention oil sealing device comprises a long cylindrical steeped gland cover, wherein the gland cover is provided with a round angle groove at a stepped distribution part; the wall thickness of the gland cover is 1-2 mm; the gland cover is provided with a sealing lip; a rigid skeleton in a flange structure is arranged at the bottom of the gland cover, and a sealed rubber body is arranged outside the skeleton; the sealing lip is waved or saw tooth shaped; the sealing lip is a structure having an interference fit with a connecting rod; and the sealing rubber body outside the skeleton is a structure having an interference fit with a cast hole. According to the invention, the axial reciprocating motion of the gland cover along with the rod can be realized, the gland cover can swing freely along with the rod, requirements for swinging the rod for 10 degrees can be satisfied, the gland cover and the rod cannot generate relative movement; two cavities are isolated by a sealing medium so as to prevent gear oil in the cavity from leaking, thus the sealing effect and the eccentricity prevention performance are better.

The invention discloses a device for testing a stable platform, which comprises a measurement bench unit and a rotary base unit. The measurement bench unit is made of a non-magnetic or weak magnetic material, which can effectively reduce the interference on the stable platform so as to ensure the accuracy of a test result; the measurement bench provides the stable platform with a required rotation speed of a generator, a rotation speed of a drill collar and a load torque, and can simulate underground working conditions; and a measurement system can obtain parameters of a rotation angle and a rotation speed of the stable platform, the rotation angle, the rotation speed and an output torque of an output shaft, an inclined angle of a test bed and the like, thereby verifying whether the performance parameters of the stable platform are correct. The rotary base unit can realize free oscillation of a platform in a spatial vertical plane and free rotation of the platform around the central axis of the base, thereby simulating well deviation and the change of an orientation parameter, and verifying whether the stable platform works stably and accurately.

The button switching shower head comprises a body and a switching assembly arranged in the body, the body is provided with a through water passing cavity and a face cover communicated with the water passing cavity, and multiple sets of different water outlet holes are formed in the face cover. The switching assembly controls the water passing cavity to switch water flow to flow out from any group of water outlet holes; the switching assembly comprises a main body, a gear rotationally arranged on the main body and a pull rod piece capable of pulling the gear to rotate, and the pull rod piece is pulled to pull the gear to rotate so as to control water flow switching of the water passing cavity; the gear and the pull rod piece are arranged on the switching assembly, the gear is pulled to rotate through the pull rod piece to form the switching structure, the pulling mode can be easily operated, and using is more labor-saving and convenient.

The invention belongs to the field of machinery, and particularly relates to a constant horizontal tray combined member suitable for all tray columns in the industries of petrochemical engineering, medicines, food and the like. The technical scheme provided by the invention is that the constant horizontal tray combined member comprises a bow-shaped beam fixedly connected in a column tray tower; the middle of the bow-shaped beam protrudes upward, and two ends of the bow-shaped beam are respectively positioned at two ends of a certain horizontal diameter in the tower; the upper and lower ends of a vertical connecting rod are respectively and movably connected with the center of the lower surface of the bow-shaped beam and the center of the upper surface of the column tray; when a tower body generates large deflection under the effect of wind loads, the connecting rod and the column tray are always mutually perpendicular under the gravity effect. According to the combined member, the tray column can move along with the column body by removing fixed constraint when an original column tray is installed, can swing freely at 360 degrees in space, maintains a constant horizontal state, and can guarantee the best separation efficiency of the column tray under any natural condition and working condition.

The invention relates to the technical field of medical treatment, in particular to an internal medicine respiratory training device which comprises a shell, a training mechanism is installed on the shell, a supporting mechanism is installed on the shell, a cleaning mechanism is installed in one end of the shell, fixing mechanisms are installed at the two ends of the shell correspondingly, and resetting mechanisms are connected to the fixing mechanisms. A storage mechanism is mounted on the shell, and a limiting mechanism is mounted in one end of the shell; under the action of the training mechanism and the supporting mechanism, the training intensity can be conveniently adjusted according to the age and the rehabilitation state of a patient, under the action of the cleaning mechanism, water vapor generated during breathing can be conveniently filtered and stored, follow-up cleaning is facilitated, and under the cooperation of the fixing mechanism and the reset mechanism, the patient can be conveniently repaired. The shell and the table top can be firmly and stably adsorbed conveniently, sliding is not prone to occurring, objects can be stored conveniently through the storage mechanism, the fixing mechanism is driven to be locked firmly, and the cleaning mechanism and the storage mechanism are locked and protected conveniently through driving of the limiting mechanism.

The invention relates to a wireless capsule OCT (optical coherence tomography) endoscope system for gastrointestinal tract diagnosis and treatment. The wireless capsule OCT endoscope system comprises an intelligent capsule, a wearable device and a displayer, wherein the wearable device comprises a transmitting circuit, a transmitting coil and a data processor. The intelligent capsule comprises a capsule casing, an OCT imaging probe, an optical fiber coupler, a light source module, a photoelectric detector, an A / D (analog / digital) converter, a data transmitter, a receiving circuit and a receiving coil, wherein the capsule casing comprises a head, a neck, a body and a tail, the OCT imaging probe comprises a lens assembly, an MEMS (micro-electro-mechanical system) micromirror, a reflecting mirror and a probe window, and one beam of light of a shunt of the optical fiber coupler is reflected by the MEMS micromirror through the lens assembly and then irradiates via the probe window while another beam of light of the shunt of the optical fiber coupler is transmitted to the reflecting mirror. The wireless capsule OCT endoscope system for gastrointestinal tract diagnosis and treatment has the advantages that by the aid of the endoscope system, non-invasive detection of in-vivo tissues of humans can be achieved; the endoscope system with micron-grade high resolution is capable of imaging in real time, and omni-directional scanning can be achieved according to a swing design of the head of the capsule casing.

The invention discloses a bionic robotic fish synergistically propelled by tail and pectoral fins. The bionic robotic fish comprises a detachable bionic fish shell which is detachably provided with a cylindrical sealed cabin, and a battery and a controller are fixed in the cylindrical sealed cabin; the bionic robotic fish further comprises two pectoral fin rotation driving parts which are symmetrically and detachably mounted on the two sides of the front part of the detachable bionic fish shell, and two pectoral fin front-back swing driving parts, and the driving ends of the two pectoral fin front-back swing driving parts are detachably connected with the driving ends of the corresponding pectoral fin rotation driving parts respectively; the bionic robotic fish further comprises two pectoral fins which are detachably connected with the corresponding pectoral fin front-back swing driving parts respectively, and a tail fin left-right swing driving part, and one side of the tail fin left-right swing driving part is detachably connected with the tail part of the detachable bionic fish shell; the bionic robotic fish further comprises a tail fin which is detachably connected with the driving end of the tail fin left-right swing driving part. All the modules of the bionic robotic fish are detachably connected, and the bionic robotic fish is simple in structure, low in cost, convenient to expand, easy to mount and dismount and capable of simulating the swimming posture of real fish.

The invention discloses a fixed three-layer composite shock absorption device. The fixed three-layer composite shock absorption device comprises an upper seat plate, an upper pendulum, block assemblies, connection hinge shafts, a spherical pendulum and a lower pendulum, wherein the upper pendulum and the upper seat plate slide relative to each other to form a plane slide layer; the upper pendulum and the spherical pendulum rotate relative to each other to form a rotation layer; the spherical pendulum and the lower pendulum swing relative to each other to form a swinging layer; the upper seat plate and the upper pendulum, the upper pendulum and the spherical pendulum, and the spherical pendulum and the lower pendulum form a three-layer composite structure; four block assemblies are provided and are respectively arranged at two transverse sides and two longitudinal sides of the upper seat plate, the upper part of each block assembly is separated from the upper seat plate, and the lower part of each block assembly is fixed on the lower pendulum through the corresponding connection hinge shaft. When in normal work, the spherical pendulum does not rotate, and a beam end does not move in the vertical direction, so that the stabilization of a bridge is facilitated; when in earthquake, the upper seat plate can be transitioned smoothly without impact; when shearing forces in both the transverse direction and the longitudinal direction of each block assembly are in failure, the free swinging of the whole shock absorption device can be realized.

The invention belongs to the technical field of sealing members, and in particular relates to a reciprocating eccentricity prevention oil sealing device, and an application method and application thereof. The reciprocating eccentricity prevention oil sealing device comprises a long cylindrical steeped gland cover, wherein the gland cover is provided with a round angle groove at a stepped distribution part; the wall thickness of the gland cover is 1-2 mm; the gland cover is provided with a sealing lip; a rigid skeleton in a flange structure is arranged at the bottom of the gland cover, and a sealed rubber body is arranged outside the skeleton; the sealing lip is waved or saw tooth shaped; the sealing lip is a structure having an interference fit with a connecting rod; and the sealing rubber body outside the skeleton is a structure having an interference fit with a cast hole. According to the invention, the axial reciprocating motion of the gland cover along with the rod can be realized, the gland cover can swing freely along with the rod, requirements for swinging the rod for 10 degrees can be satisfied, the gland cover and the rod cannot generate relative movement; two cavities are isolated by a sealing medium so as to prevent gear oil in the cavity from leaking, thus the sealing effect and the eccentricity prevention performance are better.

The invention provides a soldering method and soldering device for storage tank flip method, the soldering method comprises the steps of a, preparing a trolley for a bury arc soldering machine; b, rotationally connecting a soldering tip monitor pipe at the other end of the cross beam, mounting the soldering tip at the other end of the soldering tip monitor pipe; c, mounting a spring between a spring back plate and the soldering tip monitor pipe; d, fixedly mounting a soldering tip assist walk mechanism in the middle of the soldering tip monitor pipe; e, fixedly mounting a ring shape soldering machine walk rail set along the circumferential direction through a screw bolt at the top end of a rail installation support; f, placing the trolley of the bury arc soldering machine on the soldering machine walk rail, before the soldering, the operation staff turning around the soldering tip monitor pipe and keeping aligned an opening of the soldering tip and a soldering seam, adjusting the walk monitor wheel and keeping connected with a storage tank side wall steel, switching on a control box to start the soldering operation. The soldering method and the soldering device produces good effects in the method of automatic bury arc soldering and non bury arc automatic soldering in the flip large scale steel structure storage tank scheme.