46results about How to "Solve loose" patented technology

The utility model relates to fish ball machine shell (20) technical field, especially a cutting knife plate clamping device. The utility model discloses a frame, a pair of respectively along the frame front -back direction interval arrangement rotation setting and respectively along the frame upper -down vertical direction set in the frame top of one pair of material distribution sleeve, the blade clamp plate of screw mounting in the frame below, a pair of cutting blade that are closely arranged along the frame upper -down height direction are located in the blade clamp plate and along the frame left -right direction sliding arrangement, a pair of respectively with each material distribution sleeve one -to -one and the blanking hole of penetrating frame and blade clamp plate, two groups with each blade clamp plate one -to -one and respectively set up in the left and right sides of frame's mounting assembly and set up on fish ball machine shell (20) and be used for synchronous drive two cutting blades to the opposite direction activity's drive assembly. The device solves the problem that the fixed screw is easy to come off in the movable process of cutting knife plate.

This utility model provides a self-repairing structure for integrated circuits, relating to the field of circuit board repair equipment technology. It includes a repair equipment base and a clamping plate. The clamping plate is located on the top of the repair equipment base. A repair component slot is formed on the top of the repair equipment base. Two bearing through holes are formed through the inner wall of the repair component slot. Bearing rods are provided on the inner walls of both bearing through holes. A support plate is fixed to one side of each bearing rod, and a support frame is fixed to one side of the support plate. The clamping plate is located on top of the support frame. A sliding adjustment groove 1 and a sliding adjustment groove 2 are formed through the top and bottom of the support frame. A fixing rod 1 is provided on the inner wall of the sliding adjustment groove 1 and is fixed to the bottom of the clamping plate. A fixing rod 2 is provided on the inner wall of the sliding adjustment groove 2 and is fixed to the bottom of the clamping plate. A locking knob 1 is threaded onto the surface of the fixing rod 1, and a locking knob 2 is threaded onto the surface of the fixing rod 2. An integrated circuit board clamping groove is formed on one side of the clamping plate.

This utility model provides a temple connection structure and eyeglasses, relating to the field of eyeglasses. It solves the problem that fixing the temples to the frame with screws is prone to loosening and wear, leading to a decrease in fixing force. The temple connection structure includes a receiving shaft, a plug-in shaft, and a rubber gasket. One of the temples and the frame has a single hinge plate fixed to it, while the other has a mating groove. The single hinge plate extends into the mating groove and has a first hole. The rubber gasket is located on one side or opposite sides of the single hinge plate, with a portion of the gasket extending into the first hole. The receiving shaft passes through the groove wall of the mating groove and the first hole. The plug-in shaft is inserted into the receiving shaft with an interference fit, thereby rotatably connecting the temples to the frame. The rubber gasket is clamped between the groove wall of the mating groove and the single hinge plate. The plug-in shaft, inserted into the receiving shaft with an interference fit, forms a solid whole, achieving a hinged connection between the temples and the frame. The rubber gasket provides smooth and uniform damping for opening and closing the temples.

The utility model discloses a kind of anti-loosening wiring harness for coal preparation plant lighting circuit, it is related to electrical connector technical field, the wiring harness includes lower shell, baffle and the upper shell slidable in lower shell sliding slot, the buffer mechanism of spring one being equipped between the slider of upper shell and baffle, for absorbing cable tension, lower shell is also equipped with clamping mechanism, by clamping block and the ball, spring two cooperation in another wiring harness clamping slot, realize quick splicing.The utility model solves the problem that wiring is easy to loosen and break due to pulling in prior art, and multiple groups are inconvenient to install and disassemble, it effectively disperses impact force by buffer mechanism, significantly improves the connection reliability;Greatly improve installation and maintenance efficiency by modular clamping mechanism, structure is ingenious, very suitable for industrial environment.

The utility model belongs to the technical field of mechanical parts, and particularly relates to a two-wheeled vehicle adjusting nut with an anti-loosening function, which comprises a screw rod, a main nut and an anti-loosening nut, the main nut is in threaded connection with the screw rod, one end of the main nut is fixedly connected with a circular truncated cone-shaped extension cylinder, and the other end of the main nut is fixedly connected with the anti-loosening nut. The inner wall of the extension cylinder is provided with an internal thread connected with the main nut, and the outer wall of the extension cylinder is provided with an external thread along the curved surface. According to the two-wheeled vehicle adjusting nut with the anti-loosening function, after the main nut is screwed down, the anti-loosening nut is rotated to be in threaded connection with the outer wall of the extending cylinder, so that the main nut is subjected to force in the axial direction of the anti-loosening nut, and then the probability that the main nut is loosened due to vibration is reduced; a larger contact surface can be provided, the friction force between the threads on the outer wall of the periphery of the extension cylinder and the threads on the inner wall of the periphery of the locknut is improved, and therefore the stability of connection is improved.

The utility model discloses a kind of physiotherapy electrode pieces with anti-loosening effect, it is related to physiotherapy electrode piece technical field.The utility model includes: connecting piece, the downside of the connecting piece is provided with physiotherapy electrode piece body;Corner of the connecting piece is provided with flexible connecting rod, the downside of the flexible connecting rod is provided with adsorption component;One end of multiple connecting pipes is connected with an air extraction pipe, one end of the air extraction pipe is connected with air extraction device;Fixed component is provided on the connecting piece.The utility model is provided with flexible connecting rod and adsorption component in corner of connecting piece, forms negative pressure adsorption using air extraction device, and realizes self-adapting fit to different skin surfaces in cooperation with ball head component;Meanwhile, further enhance the fixed effect by fixed component, effectively solve the loosening problem in the use process of physiotherapy electrode piece, improve physiotherapy effect and user experience.

The utility model discloses a kind of firm terminal plug, it includes terminal seat, front inner shell, front shell, tail shell, front lock cap, rear lock cap, tail rubber sleeve, upper half lock hoop, lower half lock hoop and locking screw, terminal seat is located in front inner shell, front shell is sleeved on front inner shell to form annular slot, for inserting corresponding component.Tail shell front end is connected with front inner shell through front lock cap, tail rubber sleeve front end is connected with tail shell tail end through rear lock cap, the connecting lug of rear lock cap both sides is connected with upper half lock hoop, lower half lock hoop by locking screw, to hold fixedly tail rubber sleeve, so that tail rubber sleeve contraction is closely connected with cable, avoid cable tension direct action in the connecting place of cable and terminal, effectively solve the problem that traditional terminal plug is without fixed structure due to shell and cable, lead to cable back and forth to pull and make connecting place loose or disengagement, greatly improve the working stability and reliability of terminal plug, reduce the risk of electrical signal or power interruption, and long service life.

The invention relates to the technical field of lamps, and provides a plant lamp and a control method thereof.The plant lamp comprises a lamp body assembly, a first connecting assembly and a second connecting assembly, and the first connecting assembly and the second connecting assembly are fixedly connected to the two ends of the lamp body assembly correspondingly; the first connecting assembly comprises a first joint, and the first joint is provided with a first electric connecting part and a first connecting part; the second connecting assembly comprises a second connector, and the second connector is correspondingly provided with a second electric connecting part and a second connecting part. According to the plant lamp, electric connection and mechanical fixed connection of the plant lamp are both arranged in the first connecting assembly and the second connecting assembly, when at least two plant lamps are connected, the adjacent plant lamps are electrically connected through the first electric connecting part and the second electric connecting part, and the first connecting part and the second connecting part are fixedly connected; the first connector of one plant lamp is connected with the second connector of the other plant lamp, so that electric connection and mechanical fixed connection of the plant lamp and the plant lamp can be completed, and the problems that an outer shell is loosened and internal electric connection is unreliable can be effectively solved.

The utility model provides a kind of high-pressure threaded connector, including cylindrical connector, its front end is equipped with threaded hole, bottom center has the through-hole of penetrating rear end, threaded hole bottom has coaxial inner tube, inner tube front end is slotted and is equipped with protruding positioning part.Outside wall is also included with outer thread connecting pipe, and threaded hole is threadedly connected, its inner wall is equipped with the positioning recess corresponding with positioning part, positioning part is embedded recess and realizes circumferential fixation when screwing.In addition, slotted and threaded hole bottom interval promotes sealing;Inner tube front end extends and facilitates fluid transition;Connector rear end has output pipe;Outside wall ridge helps hand-held operation;Positioning recess side wall chamfer facilitates assembly.The present application is suitable for various medical high-pressure pipeline connection, effectively improves connection reliability.

The utility model belongs to the field of noon break chairs, and provides an inclination adjusting mechanism for a chair back and a noon break chair, the inclination adjusting mechanism comprises a chair frame, the chair frame, the chair back and a chair back rotating shaft, the chair back rotating shaft is provided with a rotation assisting mechanism and a positioning mechanism, and the rotation assisting mechanism comprises auxiliary bolts which are respectively arranged on two sides of the end part of the chair back rotating shaft and can rotate; the auxiliary bolt and the chair back rotating shaft are arranged in parallel, a second supporting plate is arranged on the chair frame, and a guide hole for the auxiliary bolt to move is formed in the second supporting plate. By arranging the two auxiliary bolts and arranging the two auxiliary bolts on the two sides of the rotating shaft bolt respectively, three-point connection is formed between the chair back and the chair frame, so that the connection effect can be better improved, the connection stability is effectively improved, and the problem that in the prior art, due to the fact that only one rotating shaft is arranged between the chair back and the chair frame for supporting, the chair back and the chair frame cannot be supported is solved. The connection stability is poor, so that the connection of the chair back and the chair frame is loose as a whole.

The utility model relates to photovoltaic power generation equipment technical field, concretely is a kind of installation base of photovoltaic power generation equipment, including pedestal, the pedestal is evenly provided with a plurality of rotating grooves, structure bin is opened in the pedestal, structure bin is communicated with rotating groove, rotating groove is rotatably connected with fixed block, fixed hole is arranged on the fixed block, fixed bolt is arranged in the fixed hole, the installation base of this photovoltaic power generation equipment, by setting up fixed block, oil silk rope, fixed pulley and the linkage structure of lifting column, when photovoltaic board is resisted by wind resistance, wind force gives the upward force of photovoltaic board, drives lifting column to move upwards, to realize rotation by oil silk rope and pull fixed block, the bottom end of fixed bolt is inclined to outside, increase the friction of fixed bolt and ground, to effectively prevent photovoltaic power generation device from being swept away by wind and damaged, and simultaneously setting up adjusting component can solve the problem of lifting column loosening caused by oil silk rope stretching.

The utility model discloses a thread locking type industrial furnace roller, which comprises a central shaft, a first shaft bumper, a circular ring piece and a second shaft bumper, the first shaft bumper is fixed at the left end of the central shaft, the right end part of the central shaft is provided with an external thread, the right end part of the central shaft is provided with a locking nut, the locking nut is screwed on the external thread, and the second shaft bumper is fixed on the circular ring piece. The locking nut is in pressing contact with the second shaft bumper; in conclusion, a nut locking structure is adopted to replace a traditional clamping mode, so that the assembly efficiency and the maintenance convenience are remarkably improved; the problem that the nut is loosened in a high-temperature vibration environment is effectively solved through the cooperation of the cotter pin and the cotter nut, the design of the belleville spring set and various anti-loosening schemes. Meanwhile, the high-temperature-resistant and self-repairing characteristics of the fiber roller surface are reserved, and the influence of surface sintering oxidation on the product quality is avoided; the structure is easy and convenient to install, the overall reliability of the furnace roller is greatly improved, and the service life of the furnace roller is greatly prolonged.

The application discloses a kind of mine wear-resistant ball hot-rolled round steel core quality improvement control method in the field of metallurgical refining, method includes: obtaining alloyed molten steel;The alloyed molten steel and pre-prepared aluminum wire, high-purity silicon carbide and lime are input into LF refining furnace, and the unit cycle of LF refining furnace refining is controlled to obtain refined molten steel;The refined molten steel is input into vacuum degassing furnace for vacuum treatment, and the vacuum treated molten steel is obtained;The vacuum treated molten steel is cast to obtain a rectangular blank;Control heating furnace adopts segmented heating rule to heat the rectangular blank, and the rectangular blank is packed into pit after rough rolling, finishing rolling and cold bed heat preservation treatment, and the finished round steel is obtained.The application can alleviate the technical problems that mine wear-resistant ball is often affected by inclusions, heating temperature and heating time during actual production, resulting in cracked ball or even broken ball, thereby affecting service life.

The present application relates to the field of ore fluidization magnetization roasting, and particularly provides a dust leakage and gas backflow prevention hood for a suspension roasting furnace and a use method, the hood comprises a wind cover, a fixing plate and a core pipe; a gas cavity is formed in the wind cover, a plurality of wind cover air outlets are uniformly arranged on the wind cover in the circumferential direction of the wind cover body, and the gas cavity is in communication with the wind cover air outlets; the core pipe is arranged in the gas cavity of the wind cover, a core pipe gas channel coaxial with the core pipe is formed in the longitudinal direction of the core pipe, the core pipe gas channel is located in the gas cavity, one end of the core pipe gas channel is a core pipe air outlet, the core pipe air outlet is in communication with the gas cavity, the other end of the core pipe gas channel is a core pipe air inlet, and shunt pipes in communication with the core pipe gas channel are arranged on both sides of the core pipe gas channel; the shunt pipes are arranged in an inclined downward manner; the inclination directions of adjacent shunt pipes on the left and right sides are different, and the inclination directions of adjacent shunt pipes on the same side are the same; the hood for the suspension roasting furnace has good dust leakage and gas backflow prevention performance, and ensures stable, efficient and safe operation of the suspension magnetization roasting furnace.

The utility model relates to door and window technical field, concretely relates to a kind of card slot type heat insulation strip and its broken bridge aluminum profile, it includes first profile, second profile, third profile, fourth profile, upper heat insulation strip, lower heat insulation strip, soundproof cotton, sealing rubber strip and the like component.Heat insulation strip adopts card slot type design, main part is equipped with reinforcing rib, surface is coated with weatherable coating, and it is realized convenient replacement by modular structure;Sealing rubber strip is used in conjunction with soundproof cotton, and improves sealing performance and heat insulation effect.The application can significantly improve profile connection stability, enhance the replaceability of heat insulation strip, and optimize the sealing performance, suitable for building door and window field, with the advantages of high efficiency, stability and easy maintenance.

This utility model discloses an anti-loosening quick-installation and quick-disassembly locking device, belonging to the field of locking and installation technology. The utility model includes a lower base, sliding locking blocks, and an upper base. The lower base has three first slide rail positions and two second slide rail positions. Three sliding locking blocks are provided, with first and second sliders respectively located on both sides of the bottom end of each sliding locking block. Through optimization and upgrades, the design of the three sets of sliding locking blocks allows for smoother thread engagement and more stable function. It can be used for the installation of ordinary faucets as well as faucets with 2-4 hoses. The product can be pre-installed with hoses and tested for sealing before leaving the factory, eliminating the need to remove the hoses, improving product yield and reducing customer complaints. It achieves quick installation and disassembly, greatly reducing labor costs. The installed product effectively prevents loosening, solving the problem of loosening at its source. It is highly practical, low-cost, and suitable for widespread application.

The utility model belongs to the technical field of aerial cables, and particularly relates to a highly wear-resistant aerial cable, which comprises a conductor and an insulating layer, the insulating layer is arranged on the peripheral side of the conductor, a heat-insulating layer is arranged on the peripheral side of the insulating layer, a heat-resistant reinforcing layer is arranged on the peripheral side of the heat-insulating layer, a heat-resistant layer is arranged on the peripheral side of the heat-resistant reinforcing layer, and a flame-retardant layer is arranged on the peripheral side of the heat-resistant layer. A protective layer is arranged on the peripheral side of the flame-retardant layer, and a wear-resistant coating is arranged on the peripheral side of the protective layer. According to the utility model, the problems that when the cable is exposed in the sun for a long time, the material on the surface of the cable is possibly subjected to thermal aging and further cracks due to poor high temperature resistance of the cable are solved, and the problem that the cable is loosened or fractured due to structural damage caused by frictional wear in the long-term use process is solved.

This invention relates to the field of hay baling technology, specifically a livestock hay baling device. The invention includes a base, a support mechanism on the top surface of the base, a baling mechanism fixedly connected to the side of the support mechanism, a lifting assembly between the support mechanism and the base, and a circumferential pressing mechanism installed in the lifting assembly; a top pressing mechanism on the top surface of the support mechanism; a discharge conveying device and a feeding plate on the side of the support mechanism, an infeed conveying device on one side of the feeding plate, and an infeeding assembly on the top surface of the feeding plate that works in conjunction with the infeed conveying device; and a discharge assembly within the top pressing mechanism. This invention, through the circumferential and top pressing mechanisms, can compress the hay bales before baling, increasing the density of the hay bales and solving the problem of loosening during transportation and loading.

The utility model relates to embankment maintenance technical field discloses a kind of embankment maintenance devices for water conservancy management, including soil embankment, and soil embankment inside is evenly provided with positioning hole in four diagonal positions, and soil embankment upper end is paved with embankment slope protection net, and four positioning holes are all provided with inner support positioning unit for embankment slope protection net to be tightly laid on the upper surface of soil embankment, and inner support positioning unit includes positioning assembly, and the outer side annular arrangement of positioning assembly is provided with multiple expansion inner support mechanism for being attached with the inner wall of positioning hole, and the mutual cooperation between positioning assembly, synchronous assembly, transmission assembly, driving assembly and expansion inner support mechanism, effectively solve the problem that slope protection net is loose or deformed in traditional embankment maintenance, and positioning assembly is combined with expansion inner support mechanism by accurate positioning, ensure that embankment slope protection net always maintains tension state, and the cooperation of synchronous assembly and transmission assembly guarantees the accurate deployment and retraction of expansion inner support mechanism.

The utility model discloses a silk screen mounting structure in an adsorber, and relates to the technical field of adsorbers. The device comprises a mounting disc, a fixing disc and a turncap, the fixing disc is arranged at the top end of the mounting disc, mounting rods are fixed to the top end of the mounting disc in an annular array mode, the mounting rods penetrate through the fixing disc and extend out of the top end, the turncap is movably connected to the periphery of the mounting rods above the fixing disc, an inner cavity is formed in the turncap, and a mounting screw is fixed to the top in the inner cavity. And the mounting screw rod is in threaded connection in the mounting rod. According to the silk screen installation structure in the adsorber, the installation disc, the fixing disc and the turncap are arranged, so that the problems that the installation operation of the silk screen installation structure in the adsorber is troublesome, and the silk screen can be loosened after working for a long time are solved, and the silk screen installation structure in the adsorber has the advantages that the installation operation is simpler and more convenient; and the looseness of the mounting structure caused by vibration of the silk screen can be compensated by pressing.

The utility model discloses a novel building material is with heat preservation board splicing locking structure, including a plurality of heat preservation boards, is provided with connecting assembly between heat preservation boards, and connecting assembly includes connecting part and spacing part, and connecting part sets up between heat preservation boards, and through setting connecting assembly, has solved the problem of the loosening or deformation of traditional heat preservation board splicing because of the external force (such as wind pressure, temperature change), in particular, the accurate positioning of heat preservation board is realized through the embedding of limit projection and limit groove of rotating block, and the embedding depth of limit projection can be dynamically adjusted by two -way screw rod cooperation adjusting spring, both adapt to heat preservation board, and also provide stable support through spring pre -tightening force continuously, avoid splicing structure and loosen because of external force, in addition, the adjustment function of two -way screw rod has simplified the installation process, and quick locking can be completed without additional tools, has improved construction efficiency and structural durability significantly, through setting auxiliary assembly, the contact area and shear resistance between heat preservation boards are enhanced.

The invention belongs to the technical field of petroleum yield increasing transformation, and particularly relates to a shale oil horizontal well high-pressure drainage system and method. The drainage and mining system comprises a wellhead casing gate valve, a drainage and mining device, a control system and a pressure transmitter, the drainage and mining device comprises a four-way joint, an oil nozzle valve and a parallel gate valve which are communicated in sequence, the four-way joint is communicated with the wellhead casing gate valve, and a production oil nozzle is installed in the oil nozzle valve. The pressure transmitter is installed to monitor the discharge and production pressure in real time, so that the production oil nozzle with the proper specification is adjusted and installed according to the wellhead pressure and the liquid amount. The production oil nozzle is mounted in the oil nozzle valve, so that sufficient mounting positions can be provided for the production oil nozzle, the production oil nozzle is mounted along the flow direction of production oil, and the oil nozzle can be firmer when subjected to impact and rotating force of the oil flow during normal production; the problems of loosening and tripping of oil nozzle threads caused by rotating force generated by high-pressure fluid are solved.

The utility model discloses an oblique folding wave anti-blocking counter flow type cooling tower packing sheet with bonding points, and belongs to the technical field of cooling tower packing. The cooling structure comprises a group of transverse flow channel cooling structures and oblique flow channel cooling structures, the transverse flow channel cooling structure comprises a set of first protrusions, a vertical first channel is formed between every two adjacent first protrusions, and a set of first retention areas are arranged in each first channel. The inclined flow channel cooling structure comprises a group of second bulges, an inclined second channel is formed between the adjacent second bulges, and a group of second retention areas are arranged in the second channel; the first channels and the second channels are in one-to-one correspondence and staggered arrangement, and inclined flow guide planes are arranged between the first channels and the second channels. Based on the alternate structural design of the transverse flow channels and the inclined flow channels, the transverse flow channels can provide a larger contact area, so that cooling water can be in full contact with the surface of the filler, and the heat and mass transfer efficiency is improved; the introduction of the inclined flow channel provides flow paths in different directions for the water flow, so that the water flow can be more uniformly and stably distributed in the whole filler.

This invention discloses an installation structure and its automotive alternator, including a housing, a hinge component, a first tensioning structure, and a connecting plate. The housing has an installation cavity, and a first buffer mechanism is installed on the inner wall of the installation cavity and connected to the hinge component. The end of the hinge component facing away from the first buffer mechanism is connected to the connecting plate. By connecting the motor body to the engine block through the installation structure, even if the crankshaft belt at the motor body output end becomes loose, continuous tension can be maintained based on the deformation of the belt. This invention's installation structure solves the problem of drastic fluctuations in engine crankshaft speed, which can easily lead to loosening of the crankshaft belt at the automotive alternator output end after long-term use. Compared to the tensioner pulley method of maintaining tension, this invention, through the setting of the first tensioning structure, can maintain continuous tension even after the belt deforms and loosens, thus possessing an adjustable and adaptable function.

This utility model relates to the field of sheet metal joining technology and discloses a mobile sheet metal joining device suitable for on-site operations. It includes a support frame, a fixed bracket at the top, casters at the bottom, and a flooring assembly inside the support frame. The flooring assembly includes a first support block, the bottom of which is fixedly connected to the inner wall of the support frame. A motor is fixedly connected inside the first support block, and a first rotating plate is fixedly connected to the output end of the motor. A second rotating plate is rotatably connected to the side wall of the first rotating plate, and a limiting plate is fixedly connected to the side wall of the support frame. In this utility model, the motor drives the first rotating plate to rotate, which in turn drives the second rotating plate to rotate. The second rotating plate then drives a sliding plate to rest against the inner wall of the limiting plate. The sliding plate presses the anti-slip plate against the ground, solving the problem of swaying and instability that occurs during the movement of the support frame and improving the stability of the sheet metal joining device.

The utility model discloses a power supply control mechanism with a quick-release waterproof function and an electric camping car, the power supply control mechanism comprises a shell assembly, and the shell assembly is respectively provided with a first accommodating cavity and at least one second accommodating cavity; the circuit board is fixedly arranged in the first accommodating cavity; the at least one battery assembly is detachably arranged in the corresponding second accommodating cavity and can be electrically connected with the circuit board; a male electric connecting sheet is fixedly arranged in the second accommodating cavity in a penetrating manner and is electrically connected with the circuit board; the battery assembly is provided with a female electric connection card, and the female electric connection card is detachably and electrically connected to the male electric connection sheet. According to the utility model, the female electric connection card is detachably and electrically connected with the male electric connection sheet, so that the problem that the electric connection position of the energy supply battery and the control panel of the existing electric camping car is loose is effectively solved.

The invention discloses a water supply and drainage pipeline with a quick assembly function, and relates to the technical field of water supply and drainage engineering. The combined pipeline specifically comprises a first combined pipeline body and a second combined pipeline body, and the first combined pipeline body and the second combined pipeline body are connected in an inserted fit mode. An automatic locking mechanism is arranged at the joint of the first combined pipeline and the second combined pipeline and comprises a clamping assembly and a pressure bearing assembly. When the first combined pipeline and the second combined pipeline are connected in an inserted mode, the pressure bearing assembly is pressed to relieve limitation on the clamping assembly, and therefore the clamping assembly is triggered to move to the locking position under the action of elastic bias. The invention further comprises a rotary fastening assembly which is configured to apply axial fastening force to the joint when the rotary fastening assembly is screwed in. The invention aims to solve the problems that existing pipeline assembly depends on a large number of accessories, the efficiency is low, and the sealing effect is poor due to looseness.