120results about How to "Guaranteed fixed connection" patented technology

The invention discloses a method for refitting an oil tanker into an FPSO. The method includes S1000, an establishing technology of a multipoint mooring chain controller related structure; S2000, an establishing technology of an oil transportation platform, S3000, an establishing technology of a flare tower, S4000, a lifting technology of a crane upper structure, and S5000, an establishing technology of a protecting pipe of a seawater lift pump, wherein a symmetry welding technology is adopted in pipe section folding, splicing and butt joint technologies in the above technologies, and the technologies can be constructed synchronously in parallel. By the adoption of the method for refitting the oil tanker into the FPSO, existing welding equipment, lifting equipment, accuracy measurement equipment and the like are fully used, human resources with related technical capacity are scientifically dispatched, the construction efficiency is high, the construction cost is low, the engineering quality of each subsystem meets the operation standard of an FPSO ship, the engineering quality of the FPSO ship is effectively guaranteed, and therefore the after-sales service time nodes of the FPSO ship are effectively prolonged.

The invention provides a low-frequency mass tuning and vibration-damping device and a regulating method for the same, and relates to the field of vibration control on large-span bridge structures. A rotating shaft rack is arranged on a support; a rotating shaft is perpendicularly connected with a lever through a bearing; a mass block is arranged at one end of the lever; a frequency regulating spring and a damper are respectively connected with the lever and the support; each pair of spring mechanisms is sleeved on the rotating shaft and is symmetrically arranged on two sides of the lever; the turning direction of a far-end flat spiral spring of each spring mechanism is the same with that of a near-end flat spiral spring of the spring mechanism; the far-end flat spiral spring and the near-end flat spiral spring of each spring mechanism are parallel to each other; and a worm gear and worm mechanism is arranged at one end of the rotating shaft. The worm gear and worm mechanism rotates, and the position of the frequency regulating spring is changed, so that the frequency of the low-frequency mass tuning and vibration-damping device is a set value. By using the low-frequency mass tuning and vibration-damping device and the regulating method for the same, vibration control on a large-span bridge with low controlled frequency can be realized.

The invention relates to an omni-directional safety belt and an application method of the omni-directional safety belt. The omni-directional safety belt comprises a protective coat, a control box, a wire box, a safety rope, a clamping lock, pole encircling belts and the like. The control box and the wire box are fixedly placed on a waist belt, the safety rope is arranged inside the wire box, the clamping lock is arranged at the tail end of the safety rope, and the pole encircling belts are connected with the waist belt. The omni-directional safety belt comprises the two pole encircling belts,when a user encounters an obstacle in the pole climbing process, the situation that the two ends of one pole encircling belt are fixedly connected with the waist belt can be guaranteed, and the safetycoefficient is improved. When an operator falls, the protective coat can be inflated to expand, a stop rod can timely clamp a wire pulley, and multiple protection is provided for the operator. Meanwhile, a manager can see operation data of the operator on the computer, the operation data include the time of working at heights, the operation altitude and the situation whether the falling phenomenon happens or not, and the rescue is timely organized advantageously.

The invention provides an electrostatic spray gun for rapidly spraying multicolor paint. One end of each of paint pipes is connected with a paint tank, and the other end of the corresponding paint pipe is connected with a gun body; the gun body is connected with a nozzle; a controller is connected with the nozzle through a circuit; a spraying channel and a paint sucking pump are arranged in the nozzle; a paint connector is arranged at the bottom of the spraying channel, and connected with the paint sucking pump through a pipeline; and the paint sucking pump is connected with the controller through a circuit. According to the electrostatic spray gun for rapidly spraying multicolor paint, which is provided by the invention, a color changing upper cover and a color changing lower cover are arranged, so that color change among multiple colors can be realized through the change of the relative position of the color changing upper cover and the color changing lower cover, and the fixed connection of the gun body is guaranteed.

The invention discloses a bladeless fan machine head and a bladeless fan provided with the same. The bladeless fan machine head comprises a machine head inner shell and a machine head outer shell, wherein multiple connection parts extending along the length direction of the machine head inner shell are arranged on the machine head inner shell; the machine head outer shell covers the outer side of the machine head inner shell and is connected with the connection parts through welding; an air flow passage is defined between the machine head outer shell and the machine head inner shell; and inlets and air vents which communicate with the air flow passage are formed in the machine head outer shell and/or the machine head inner shell. According to the bladeless fan machine head disclosed by the embodiment of the invention, the multiple connection parts extending along the length direction are arranged on one side, opposite to the machine head outer shell, of the machine head inner shell, so that welding joints between the machine head outer shell and the machine head inner shell are located on the inner side of the machine head; and fixed connection between the machine head outer shell and the machine head inner shell is ensured, and the appearance attractiveness of the machine head is not affected. Furthermore, the whole component is of a closed structure, and during work of the bladeless fan, a user cannot touch any component in the machine head, so that use safety of the bladeless fan is ensured.

The invention provides a spent fuel transport container, comprising a barrel with an opening at the top and a spent fuel grid, wherein the spent fuel grid is arranged inside the barrel; a first radiation shielding structure capable of shielding radiation is arranged in the wall of the barrel; a shock absorber structure is arranged out of the barrel; the top end of the barrel is provided with a hanger shaft structure, and the bottom end of the barrel is provided with a flip shaft structure; and a flange capable of shielding radiation is arranged at the opening of the barrel and is detachably connected with the top of the barrel. The spent fuel transport container of the invention solves safety problems in transportation of radioactive materials such as spent fuels.

The invention discloses an atomizing nozzle based on spiral airflow. The nozzle comprises a fixed column and a matched block, the end, away from a matched column, of the fixed column is connected witha water joint, a straight hole water way penetrates through the fixed column and communicates with the water joint, a bearing segment is sleeved with a seal ring, a thread is arranged on the side wall of a connecting segment, a spiral groove is formed in the side wall of a mounting hole, an air inlet hole is formed in the side wall of the matched block, the air inlet hole communicates with a storage cavity, a seal ring groove is formed in the side wall of a limiting hole, the matched column is inserted into the mounting hole, the connecting segment is in threaded connection with a thread hole, the seal ring makes contact with the bottom of the seal ring groove, and the end face, away from the bearing segment, of the matched column and the bottom of the mounting hole form a mixing cavity.The storage cavity is formed in the nozzle, it is ensured that gas entering the spiral groove is always kept at the uniform pressure intensity, water mist particles generated by the nozzle are uniform always, and the problem that the water mist humidity effect generated by a common nozzle is not sufficient can be solved.

The invention discloses a horizontal and longitudinal locking type valve drilling device which comprises an operation table, a clamping mechanism, a stretchable mechanism, a driving motor, a driving shaft and a drill bit; a connecting block is arranged at the upper end of the drill bit, the longitudinal cross section of the connecting block is of a mountain-shaped structure, an annular groove is formed in the middle of the upper end of the connecting block, a connecting column is arranged in the middle of the annular groove, and an external thread is arranged on the upper half part of the connecting column; a penetration groove is formed in the lower end of the driving shaft, an internal threaded hole is formed in the upper half part of the penetration groove, the annular groove is connected to the lower end of the driving shaft in a sleeving manner, the connecting column is in threaded connection into the penetration groove, and the connecting block and the driving shaft are providedwith threaded holes corresponding in position; and screws are connected to the threaded holes and are sequentially connected with the connecting block and the driving shaft in a penetrating manner. According to the horizontal and longitudinal locking type valve drilling device, through screw-thread fit of the connecting column and the penetration groove and the screw fixation of the connecting block and the driving shaft, longitudinal l and horizontal fixed connection of the drill bit and the driving shaft is guaranteed.

The invention is applicable to the technical field of sensors, and provides a proximity switch which comprises a sensor chip, a magnetic core body and a circular fixing disc, the sensor chip comprises a main chip PCB and a PCB connecting plate, and the magnetic core body comprises a magnetic core body and a magnetizer arranged on the surface of one side of the magnetic core body; a first conducting strip is arranged on one side face of the circular fixing disc, a plurality of second conducting strips are evenly arrayed on the other side face of the circular fixing disc, a plurality of conducting holes penetrate through the circular fixing disc, and each conducting hole penetrates through the corresponding first conducting strip and the corresponding second conducting strip. The first conducting strip is bonded with magnetizer glue of the magnetic core body through conducting resin, and the PCB connecting plate is fixedly connected with the corresponding second conducting strip. According to the proximity switch provided by the invention, the problem that the inductance value of the proximity switch is increased and the detection accuracy of the proximity switch is improved due to the fact that a magnetic core coil with a copper wire arranged on the periphery is effectively avoided and abrasion and breakage caused by long-time use are avoided.

The present invention relates to a component units (100, 100') for a fuel system of an internal combustion engine, in particular for use in an internal combustion engine having direct injection, having at least one injector (1) which injects fuel, and/or at least one mounting (2), on which at least one injector (1), which injects fuel, is fixable, and having at least one fuel line (3), using which the injector (1) or the mounting (2) is connectable to a fuel distributor (4). It is provided that the injector (1) or the mounting (2) is connected to the fuel line (3) using a plug connection (9). Furthermore, at least one positioning aid is provided, which holds the injector (1) or the mounting (2) in a specified location.

The invention discloses a circle correcting device for a welded steel pipe. The circle correcting device comprises a rack, two steel-pipe-end fixing devices are symmetrically arranged on the rack, an external-circle correcting mold is arranged between the two steel-pipe-end fixing devices, and the steel-pipe-end fixing devices and the external-circle correcting mold are all arranged on a guide rail of the rack, and can move along the guide rail; each steel-pipe-end fixing device comprises a base and a fixing head, each fixing head is rotatably connected on one side of the corresponding base, a groove is formed in the middle of each fixing head, and a plurality of retractable arc pressing plates are evenly arranged on the inner side wall of each groove at intervals; a lead screw is mounted in the middle of each groove, a rounding mold is fixed to one end of each lead screw, and the other end of each lead screw extends out of the end of the corresponding steel-pipe-end fixing device and is driven by a motor to rotate. According to the circle correcting device for the welded steel pipe, all-sided circle correcting is conducted on the whole steel pipe, moreover, the steel pipe does not need to be moved and fixed again, and thus the efficiency is enhanced.

The invention discloses a connecting device and a locking mechanism thereof. The locking mechanism comprises a locking ring, a locking head, a connection shaft and a locking part, wherein the lockingring is provided with a sleeving through hole, a connector protruding out of the outer side wall of the sleeving through hole, and a gap which penetrates though the side wall of the connector and theside wall of the sleeving through hole in the axis direction of the sleeving through hole; a cooperation face and a clamping groove which is formed in the side wall of the cooperation face are arranged at one end of the locking head, the outer side wall of the clamping groove is matched with that of the sleeving through hole, and a connection through hole is formed in the other end of the lockinghead; a connection hole is formed in one end face of the connection shaft, the connector penetrates through the connection through hole to rotatably sleeve the inner side wall of the connection hole,and the other end of the connector movably sleeves the outer side wall of the connection hole through the connection through hole; an extensible structure is arranged between the locking part and theconnection shaft, and the locking part can move relative to the connection shaft. By means of the connecting device and the locking mechanism thereof, pedicle screws of different spacing and differentfixed positions can be supported and pressurized, the supporting and pressurizing track is controllable, and a surgical operation is facilitated.

The invention discloses a metal pipeline welding device for water conservancy construction and a using method thereof, and relates to the technical field of metal pipeline welding. The problem of the welding angle of a metal pipeline is solved. The device specifically comprises a bottom plate, mounting plates are arranged on the outer walls of the two sides of one end of the bottom plate correspondingly, a supporting plate is arranged on one side of the top of the bottom plate, a hydraulic rod is fixed to the outer wall of one side of the top of the supporting plate through a rotating plate, and a guide block is arranged at the extending end of the hydraulic rod; the top ends of the two L-shaped guide plates are connected with the two sides of the guide block through connecting shafts correspondingly, the middle sections of the two L-shaped guide plates are rotationally connected with connecting plates through guide shafts correspondingly, a support is arranged on the outer wall of the middle of the top of the bottom plate, a sliding hole is formed in one side of the support, and a sliding column is slidably connected into the sliding hole. The welding effect of the welding end of the metal pipeline after clamping and fixing is guaranteed, so that the welding efficiency of a welding joint on a welding seam is improved, and the welding quality is guaranteed.

The invention provides a surface rust-proof treatment device for motor casing machining, and relates to the technical field of motor machining. The surface rust-proof treatment device comprises a bearing frame, inner supporting blocks and a chassis, and is characterized in that a bearing rotating wheel is connected to the bottom of the front end of a supporting frame and is of a circular hollowed-out structure; there are two limiting mechanisms, the two limiting mechanisms are located in a connecting piece and on the outer wall of the supporting frame respectively; the number of the connectingpieces is multiple, and the rear ends of the connecting pieces are connected to the periphery of the bearing rotating wheel in a surrounding mode through clamping bolts; and the bearing frame is of ahollow structure, and the top of the bearing frame is connected with the front ends of the connecting pieces. When an adjusting screw in the bearing frame is rotated, the chassis at the bottom of thebearing frame is driven by the adjusting screw to move upwards, the spacing distance between the bottom of the bearing frame and the chassis is shortened, and then the six inner supporting blocks aredriven to expand outwards, so that rubber non-slip mats on the outer sides of the inner supporting blocks are attached to the inner wall of the motor casing to fix the motor casing, and the stabilityof motor casing during paint spraying operation is guaranteed.

Provided are a system for querying legal provisions and a method thereof. The system comprises a plurality of user sides, a cloud server and a background control end. The user sides are connected to the cloud server through a wireless network, the cloud server is connected to the background control end through a wired or wireless network, a cloud server host is arranged in a cuboid-shaped casing, the walls of one pair of opposite side wallboards of the cuboid-shaped casing and the wall of a back wallboard each are provided with a cuboid-shaped support formed by paired connection of two pairs of linkage pieces. By combination with the method, shortcomings that in the prior art, when the cloud server host continuously runs, particulate matter impurities cannot be removed and external liquid is led into a main control cabinet through a long and narrow through hole to burn out a management host in the main control cabinet are effectively overcome.

The invention discloses an NFC-POS-based P2P payment platform and a method thereof. The platform comprises an NFC mobile phone, a POS apparatus, an NFC card reader unit, a receipt/invoice cloud service unit and a third party end, wherein the NFC mobile phone is connected with the NFC card reader unit through NFC; the receipt/invoice cloud service unit is connected with other units through the internet; and the receipt/invoice cloud service unit is arranged in a main control cabinet. A card reader apparatus further comprises an executive program. In combination with the method of the platform, the defects of complex step running, increased expense, difficult control, high misconnection frequency of a server, burnout of the receipt/invoice cloud service unit in the main control cabinet due to introduction of external liquid into the main control cabinet via a narrow and long through hole, low glass bronze wire recovery efficiency, poor glass bronze wire protection, unsmooth execution and no alarm performance in the prior art are overcome.

The invention discloses a rotatable large-scale rotary excavation bucket wheel convenient to move for mining. The rotatable large-scale rotary excavation bucket wheel convenient to move for mining comprises a shell, a fixed plate block and an excavation ring main body. A bearing block is arranged in the shell, and a filling plate block is arranged on the left side of the bearing block. Fixing screws are mounted in the upper and lower ends of the fixed plate block, and the fixed plate block is located on the left side of the filling plate block. A pressure bearing block is arranged in the middle of the bearing block, outer encirclements are arranged on the left and right sides of the pressure bearing block, and a fixed sleeve is arranged in the middle of the pressure bearing block. According to the rotatable large-scale rotary excavation bucket wheel convenient to move for mining, compared with an existing common rotary excavation bucket wheel, the functionality is maintained, an internal structure body of equipment is reduced as much as possible at the same time, so that the whole device is more convenient and faster in the using process, the operation of a user is facilitated, theequipment can be move more conveniently and faster due to the reduction of the number of structures, and the using requirements of people are effectively met.

The invention discloses a silencing device for an outlet of a fire-fighting smoke exhaust fan. The silencing device comprises a smoke exhaust pipeline connected to the outlet of the fire-fighting smoke exhaust fan and a noise elimination cylinder connected to the outer portion of the smoke exhaust pipeline in a sleeving mode. The noise elimination cylinder is formed by splicing two arc-shaped plates with semicircular sections, and connecting rods are arranged on the two side edges of the two arc-shaped plates correspondingly. The connecting rods and the arc-shaped plates are integrally formed, bolt holes are formed in the connecting rods, a bolt penetrates through the two communicated bolt holes after the two connecting rods are in lap joint, one end of the bolt is in threaded connection with a nut, and arc-shaped clamping plates perpendicular to the arc-shaped plates are welded to the two ends of the inner sides of the two arc-shaped plates. According to the silencing device, noise generated during working of the smoke exhaust fan is reduced for the first time through sound absorption cotton on a silencing module, noise is reduced for the second time through a silencing box body, a first-stage sound absorption plate, a second-stage sound absorption plate and sound absorption foam in the silencing box body can achieve the triple sound absorption effect, and noise pollution generated during working of the smoke exhaust fan is effectively reduced. And the practicability is good.

The invention relates to the field of automobile pipeline connection, in particular to a worm wheel-worm hoop and rubber pipe assembly and an installation method thereof. The worm wheel-worm hoop and rubber pipe assembly comprises a rubber pipe and a worm wheel-worm hoop. The worm wheel-worm hoop is installed at an end opening of the rubber pipe. An arch-shaped clamping jaw is arranged on a steel strip of the outer ring of the worm wheel-worm hoop. The upper end of the arch-shaped clamping jaw is a sharp point jaw head which is bent toward the inner wall of the rubber pipe. The sharp point jaw head is used for being connected with the edge of the end opening of the rubber pipe in a clamped mode. The sharp point jaw head of the arch-shaped clamping jaw of the worm wheel-worm hoop and rubber pipe assembly is completely concealed into the inner wall of the rubber pipe, so that fixed connection of the worm wheel-worm hoop and the rubber pipe is ensured, and accordingly the worm wheel-worm hoop is prevented from sliding and falling off from the worm wheel-worm hoop and rubber pipe assembly.

The invention relates to a small farming device, in particular to a multi-purpose mini tiller. The mini tiller comprises a rack, an engine, a power transmission mechanism, a rapid-detaching connecting mechanism and a steering mechanism, wherein the power transmission mechanism comprises a shell, as well as a clutch, a traveling transmission mechanism and an operation transmission mechanism which are arranged in the shell, and the rapid-detaching connecting mechanism comprises a fixed base, flange heads and a bolt. The invention aims at providing the mini tiller with multiple functions.

The invention discloses a wedge screw internal fixation device, which comprises a lower wedge screw, an upper wedge inclined circular tube and a personalized bone plate. The lower wedge screw comprises an oblique cylindrical small screw section and an oblique cylindrical large screw section connected in sequence, wherein the top surface of the oblique cylindrical small screw section is provided with a cross-shaped groove, and the outer wall of the oblique cylindrical small screw section is provided with external thread; the oblique cylindrical large screw section is provided with an inclined surface, and the outer wall of the oblique cylindrical large screw section is provided with a self-tapping screw thread. The upper wedge oblique circular tube is provided with a channel along the axialdirection, the oblique cylindrical small screw section passes through the channel with a cylindroid structure and is sleeved in the upper wedge oblique circular tube from bottom to top, the outer diameter of the oblique cylindrical large screw section is equal to the outer diameter of the upper wedge oblique circular tube, and the inclined angle of the inclined plane of the upper wedge oblique circular tube is equal to the inclined angle of the inclined plane in the oblique cylindrical large screw section. The personalized bone plate is provided with screw thread holes, which have internal thread matched with oblique cylindrical small screw section. The structure is designed based on the characteristics of human bones, is simple and efficient to install, has short operation time in use, can be permanently fixed for osteoporosis patients, and is safe and reliable.

The invention discloses a pilot valve fixing structure and a four-way switching valve, and belongs to the field of valves. The fixing structure comprises a supporting frame and a supporting cover which mutually cooperate to fix a pilot valve, the supporting frame comprises a connecting plate, the supporting cover comprises a cover plate, the structure is characterized in that the supporting framefurther comprises a first supporting plate and a second supporting plate which are parallelly arranged on the opposite two sides of the connecting plate respectively, the supporting cover further comprises a sealing plate which is formed by the bending of one side of the cover plate, the cover plate is fixedly connected with the first supporting plate, the sealing plate is fixedly connected with the second supporting plate, and one end of the pilot valve is arranged between the supporting frame and the supporting cover to achieve fixing. The structure has the advantages that when the whole structure vibrates due to force bearing in the working process, the supporting frame, the supporting cover and the pilot valve synchronously vibrate, the supporting frame, the supporting cover and the pilot valve have a uniform resonance frequency to effectively prevent the breaking of capillary pipes due to low resonance frequency between the supporting frame and the supporting cover, the stabilityof the whole valve structure is ensured, the working stability of the valve structure is further ensured, and therefore the service life of the valve structure is prolonged.

The invention provides a widow strip fixing device for a vehicle window and a fixing method thereof. The vehicle window comprises a packaging body for accommodating vehicle window glass and a window strip fixedly mounted with the packaging body. The fixing device comprises at least one first rod extending from inside of an area of the window strip in a protruding manner and at least one first recess arranged outside the corresponding packaging body. The first recess is provided with a through hole passing through the packaging body, and the first rod passes through the through hole, so that the window strip is contacted with the outer face of the packaging body, and a hot melting welding connecting part is formed between the tail end of the first rod passing through the through hole and the corresponding packaging body. The window strip is fixedly connected for a long time, so that the fixing device is convenient to operate, the number of sub parts is decreased, and the cost is saved.