CN114738569B - Self-adaptive connecting device for multi-diameter tubular members - Google Patents
Self-adaptive connecting device for multi-diameter tubular members Download PDFInfo
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- CN114738569B CN114738569B CN202210649111.XA CN202210649111A CN114738569B CN 114738569 B CN114738569 B CN 114738569B CN 202210649111 A CN202210649111 A CN 202210649111A CN 114738569 B CN114738569 B CN 114738569B
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- plugging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/10—Joints with packing adapted to sealing by fluid pressure the packing being sealed by the pressure of a fluid other than the fluid in or surrounding the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/14—Joints for pipes of different diameters or cross-section
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the field of pipe fittings, in particular to a self-adaptive connecting device for a multi-diameter tubular member. Including the pipe firmware, the connecting piece, driving piece and shutoff piece, the pipe firmware is including the outer fixed strip of pipe spare and the fixed strip of pipe spare of being screw thread form elasticity strip, install outer fixed strip of pipe spare and the fixed strip of pipe spare in between major diameter pipe and minor diameter pipe, the fixed strip of pipe spare and the fixed strip of pipe spare are kept away from each other along trapezoidal inclined plane in the driving piece drive, and make the fixed strip diameter grow of outer pipe spare so that outer fixed strip lateral wall expand outward to with major diameter intraductal lateral wall looks butt, simultaneously, the fixed strip diameter of inner pipe spare diminishes so that the fixed strip inside wall of inner pipe spare contracts to and compresses tightly with minor diameter pipe lateral wall looks butt, thereby adapt to the connection between the tubular member of equidimension pipe diameter not.
Description
Technical Field
The invention relates to the field of pipe fittings, in particular to a self-adaptive connecting device for a multi-diameter tubular member.
Background
When the pipeline is produced, the length of the pipeline is generally limited in consideration of the processing requirements and the transportation convenience requirements, and the laying length of the pipeline is not limited, so that the pipeline needs to be connected when being laid and used. Pipe joints generally employ a cylindrical pipe section and a small diameter inner pipe section is inserted into a large diameter outer pipe section with a tight fit and a fastening closure is used therebetween to tightly connect two pipes of different diameters. The existing commonly used connecting piece is mostly connected between the pipe fittings of the specific size diameter of adaptation, and in actual conditions, different manufacturers often produce some deviations in the same model pipe fitting, so that the existing pipe connecting piece often appears connecting untight and reducing the sealing performance of the whole pipeline.
Disclosure of Invention
The invention provides a self-adaptive connecting device of a multi-diameter tubular member, which aims to solve the problem that the existing pipe fitting connecting piece is not high in adaptability to the multi-diameter tubular member during connection.
The self-adaptive connecting device for the multi-diameter tubular member adopts the following technical scheme: an adaptive connection device for multi-diameter tubular members includes a tubular member, a connector, a driver, and a closure.
The pipe fixing piece is arranged between the large-diameter pipe and the small-diameter pipe and comprises an outer pipe fixing strip and an inner pipe fixing strip. The outer pipe fixing strip is a threaded elastic strip arranged in front of and behind the axis. The radial cross section of the outer pipe fixing strip is trapezoidal with the small end facing inwards. The inner pipe fitting fixing strip is a thread-shaped elastic strip coaxially arranged in the outer pipe fitting fixing strip, and the radial cross section of the inner pipe fitting fixing strip is trapezoidal with the small end facing outwards. The inner pipe fitting fixing strip and the outer pipe fitting fixing strip have the same spiral direction, and the small end of the inner pipe fitting fixing strip is meshed with the small end of the outer pipe fitting fixing strip. The connecting piece is arranged at the front end of the outer pipe fitting fixing strip and used for preventing the front end of the inner pipe fitting fixing strip and the front end of the outer pipe fitting fixing strip from rotating relatively.
The driving piece is established at outer fixed strip rear end of pipe fitting, it rotates opposite direction and keeps away from each other to configure into fixed strip rear end of drive outer fixed strip and the fixed strip rear end of inner pipe fitting, and under the connecting piece cooperation, the fixed strip of drive outer fixed strip and the fixed strip of inner pipe fitting are kept away from each other along trapezoidal inclined plane, and make the fixed strip diameter grow of outer pipe fitting so that outer fixed strip lateral wall expand to with the intraductal lateral wall looks butt of major diameter outward, simultaneously, the fixed strip diameter of inner pipe fitting diminishes so that shrink to and minor diameter pipe lateral wall looks butt in the fixed strip inside wall of inner pipe fitting.
The plugging piece is arranged at the front end of the outer pipe fixing strip and is configured to plug a gap formed when the outer pipe fixing strip and the inner pipe fixing strip are far away from each other in the radial direction.
Further, the connecting piece includes outer limiting plate, interior limiting plate and first telescopic link. The outer limiting plate is vertically fixed on the front end face of the outer pipe fitting fixing strip. The inner limiting plate is vertically fixed on the front end face of the inner pipe fitting fixing strip and is parallel to the outer limiting plate. One end of the first telescopic rod is hinged to the outer limiting plate, and the other end of the first telescopic rod is hinged to the inner limiting plate.
Further, the shutoff piece includes outer shutoff strip, interior shutoff strip and synchronization structure. The outer plugging strip is an arc strip circumferentially arranged along the outer pipe fixing strip, the cross section of one end, close to the front end of the outer pipe fixing strip, of the outer plugging strip is trapezoidal with the small end facing outwards, and the cross section of one end, far away from the front end of the outer pipe fixing strip, of the outer plugging strip is triangular with the small end facing outwards. The outer plugging strip is slidably mounted in an outer gap defined by the inclined plane of the outer pipe fixing strip, the outer side wall of the inner pipe fixing strip and the large-diameter pipe. Interior shutoff strip is the arc strip that sets up along inner pipe fitting fixed strip circumference, and the cross-section of interior shutoff strip near the one end of inner pipe fitting fixed strip front end is tip trapezoidal inwards, and the cross-section of keeping away from the one end of inner pipe fitting fixed strip front end is tip triangle-shaped inwards. The inner plugging strip is slidably mounted in an inner gap formed by the inclined surface of the inner pipe fitting fixing strip, the inner side wall of the outer pipe fitting fixing strip and the small-diameter pipe in a surrounding manner.
The synchronous structure is configured to drive the outer plugging strip to be inserted into the outer gap to be longer when the outer pipe fitting fixing strip and the inner pipe fitting fixing strip are far away from each other in the radial direction, so that the cross section of the outer plugging gap is gradually changed from a trapezoid to a triangle, and the inner plugging strip is inserted into the inner gap to be longer, so that the cross section of the inner plugging gap is gradually changed from the trapezoid to the triangle.
Further, the synchronous structure comprises a first oil cylinder, a second oil cylinder and a second telescopic rod. The first oil cylinder is arranged between the outer limiting plate and the inner limiting plate. The first oil cylinder body is fixed on the inner limiting plate, and the first oil cylinder piston rod is arranged on the outer limiting plate along the radial direction of the outer pipe fixing strip in a sliding manner. The second oil cylinder body is fixed on the front end face of the outer pipe fixing strip through a fixing rod. And a piston rod of the second oil cylinder is fixed with the outer plugging strip. The second oil cylinder is communicated with the first oil cylinder through a hose. One end of the second telescopic rod is hinged on the outer plugging strip, and the other end of the second telescopic rod is hinged on the inner plugging strip.
Further, the driving member comprises a driving hydraulic cylinder structure and a telescopic oil pipe. The telescopic oil pipe is in a spiral shape and comprises a sub pipe and a main pipe; one end of the sub pipe is slidably inserted into one end of the main pipe, and the sub pipe and the main pipe are in sliding seal; female pipe other end shutoff back and outer fixed strip rear end fixed connection of pipe fitting, the sub-pipe other end and the fixed strip rear end fixed connection of inner tube for when the sub-pipe from flexible oil pipe impresses hydraulic oil, because the one end that the sub-pipe was kept away from to flexible oil pipe's female pipe is the shutoff state, then along with the impressing of hydraulic oil and make the intraductal hydraulic pressure increase of flexible oil pipe, thereby under hydraulic oil pressure drive, flexible oil pipe's sub-pipe and female pipe are kept away from each other, realize flexible oil pipe's extension.
The driving hydraulic cylinder structure is arranged at the rear side of the outer pipe fixing strip and is provided with a hydraulic cavity filled with hydraulic oil. The hydraulic cavity is communicated with the telescopic oil pipe through a rigid pipe. Hydraulic pressure intracavity is equipped with first one-way structure and second one-way structure, first one-way structure is used for pushing the flexible oil pipe of the hydraulic pressure intracavity and making flexible oil pipe extension when big diameter pipe and minor diameter pipe rotate along clockwise, second one-way structure is used for pushing the flexible oil pipe of the hydraulic pressure intracavity and making flexible oil pipe extension when big diameter pipe and minor diameter pipe rotate along counter-clockwise, make outer fixed strip rear end of pipe fitting and the fixed strip rear end of inner pipe fitting rotate opposite direction and keep away from each other when realizing big diameter pipe and minor diameter pipe rotation.
Further, the driving hydraulic cylinder structure comprises a mounting ring, a rotating cylinder, a first pushing block and a second pushing block. The mounting ring is coaxially arranged at the rear side of the outer pipe fixing strip. The mounting ring is provided with a mounting groove at one end close to the outer pipe fixing strip. The mounting groove is an annular groove. The rotary drum is coaxially and rotatably arranged on the inner wall of the mounting groove. The drum and the small diameter tube are friction fit.
The rotating ring is coaxially and rotatably arranged on the outer groove wall of the mounting groove and the side peripheral wall of the rotating cylinder. The swivel is friction fitted with the large diameter pipe. The rotary ring and the rotary drum enclose the mounting groove with a sealing cavity. The first push block is arranged in the sealing cavity and is in sliding sealing with the sealing cavity. The second push block is arranged in the sealing cavity and is in sliding sealing with the sealing cavity. The second push block and the first push block divide the sealing cavity into a hydraulic cavity and an air cavity which are not communicated with each other. The air cavity is communicated with the outside. The first unidirectional structure is a first unidirectional tooth. First one-way tooth is established between first ejector pad and swivel to and between first ejector pad and the rotary drum, rotate along clockwise when the swivel rotates along clockwise, when the swivel rotates along anticlockwise, make first ejector pad and swivel relative slip, drive first ejector pad when the rotary drum rotates along clockwise and rotate along clockwise, when the rotary drum rotates along anticlockwise, make first ejector pad and rotary drum relative slip.
The second unidirectional structure is a second unidirectional tooth. The one-way tooth of second is established between second ejector pad and swivel to and between second ejector pad and the rotary drum, rotate along the anticlockwise when the swivel rotates along the anticlockwise, when the swivel rotates along the clockwise, make second ejector pad and swivel relative slip, drive second ejector pad when the rotary drum rotates along the anticlockwise and rotate along the anticlockwise, when the rotary drum rotates along the clockwise, make second ejector pad and rotary drum relative slip.
Furthermore, a one-way valve is arranged between the telescopic oil pipe and the rigid pipe.
Furthermore, a plurality of outer friction columns are arranged at one end of the rotating ring close to the outer pipe fixing strip. The inner side wall of the rotary drum is provided with a plurality of inner friction columns.
Furthermore, a layer of rubber is arranged on the outer wall of the outer pipe fixing strip. The outer wall of the inner pipe fitting fixing strip is provided with a layer of rubber.
Furthermore, the outer side wall of the outer pipe fixing strip is provided with a ratchet. The outer side wall of the inner pipe fitting fixing strip is provided with a ratchet.
The invention has the beneficial effects that: install outer pipe fitting fixed strip and inner pipe fitting fixed strip between big diameter pipe and minor diameter pipe, the fixed strip of outer pipe fitting of driving piece drive and inner pipe fitting fixed strip are kept away from each other along trapezoidal inclined plane, and make outer pipe fitting fixed strip diameter grow so that outer pipe fitting fixed strip lateral wall expand outward to with major diameter intraductal lateral wall looks butt, simultaneously, the fixed strip diameter of inner pipe fitting diminishes so that contract in the fixed strip inside wall of inner pipe fitting to with minor diameter pipe lateral wall looks butt and compress tightly, thereby adapt to the connection between the tubular member of not equidimension pipe diameter.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of an adaptive connecting device for multi-diameter tubular members according to the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a pipe fastener and a driving member according to an embodiment of the invention;
FIG. 4 is a schematic structural view of a pipe fastener and a closure according to an embodiment of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a schematic structural view of an outer tubular member fixing strip, an inner tubular member fixing strip, a driving hydraulic cylinder structure and a plugging member according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a closure according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a driving cylinder structure according to an embodiment of the present invention;
fig. 9 is a sectional view of the structure of the driving cylinder of the embodiment of the invention.
In the figure: 100. a large diameter tube; 200. a small diameter tube; 300. an outer tubular member securing strip; 400. an inner pipe fitting fixing strip; 500. a connecting member; 510. an outer limit plate; 520. an inner limiting plate; 530. a first telescopic rod; 600. a blocking member; 610. an outer closure strip; 620. an inner plugging strip; 631. a first cylinder; 632. a second cylinder; 633. a second telescopic rod; 710. a driving hydraulic cylinder structure; 711. a mounting ring; 712. rotating the ring; 713. a rotating drum; 714. a first push block; 715. a second push block; 720. a hydraulic chamber; 721. an oil outlet; 730. an oil pipe is stretched; 740. a one-way valve; 750. an outer friction column; 760. an internal friction column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the adaptive connecting device for multi-diameter tubular members of the present invention is shown in fig. 1 to 9: an adaptive connection device for multi-diameter tubular members comprises a tubular member, a connecting member 500, a driving member and a blocking member 600.
The pipe fixing member is provided between the large-diameter pipe 100 and the small-diameter pipe 200, and includes an outer pipe fixing strip 300 and an inner pipe fixing strip 400. The outer tube fixing strip 300 is a screw-shaped elastic strip arranged in front and back of the axis. The radial cross section of the outer pipe fixing strip 300 is trapezoidal with the small end facing inwards. The inner pipe fixing strip 400 is a screw thread-shaped elastic strip coaxially disposed in the outer pipe fixing strip 300, and has a radial cross section in the shape of a trapezoid with its small end facing outward. The inner pipe fixing strip 400 and the outer pipe fixing strip 300 have the same spiral direction, and the small end of the inner pipe fixing strip 400 is engaged with the small end of the outer pipe fixing strip 300.
A connector 500 is provided at the front end of the outer pipe fixing bar 300 for preventing the relative rotation of the front end of the inner pipe fixing bar 400 and the front end of the outer pipe fixing bar 300.
The driver is established at outer fixed strip 300 rear end of pipe fitting, it rotates opposite direction and keeps away from each other to configure into the fixed strip 400 rear end of driving outer fixed strip 300 rear end of pipe fitting and interior pipe fitting, and under the cooperation of connecting piece 500, the fixed strip 300 of driving outer fixed strip and the fixed strip 400 of interior pipe fitting keep away from each other along trapezoidal inclined plane, and make the fixed strip 300 diameter grow of outer pipe fitting so that the fixed strip 300 lateral wall of outer pipe fitting expand outward to with 100 inside wall looks butt of major diameter pipe, simultaneously, the fixed strip 400 diameter of interior pipe fitting diminishes so that the fixed strip 400 inside wall of interior pipe fitting contracts to with the 200 outside wall looks butt of minor diameter pipe.
The plugging member 600 is provided at the front end of the outer pipe fixing strip 300, and is configured to plug a gap formed when the outer pipe fixing strip 300 and the inner pipe fixing strip 400 are separated from each other in the radial direction while the outer pipe fixing strip 300 and the inner pipe fixing strip 400 are separated from each other. The outer pipe fixing strip 300 and the inner pipe fixing strip 400 are installed between the large-diameter pipe 100 and the small-diameter pipe 200, the rear ends of the outer and inner pipe fixing bars 300 and 400 are driven by the driving member to rotate in opposite directions and to be away from each other, the outer and inner pipe fixing bars 300 and 400 are driven to be away from each other along the trapezoidal slope, and the diameter of the outer pipe fixing strip 300 is enlarged to expand the outer sidewall of the outer pipe fixing strip 300 to abut against the inner sidewall of the large-diameter pipe 100, meanwhile, the diameter of the inner pipe fixing strip 400 is reduced so that the inner side wall of the inner pipe fixing strip 400 is inwardly contracted to abut against and compress the outer side wall of the small-diameter pipe 200, the sealing piece 600 seals the gap formed in the process that the outer pipe fixing strip 300 and the inner pipe fixing strip 400 are radially away from each other, and the adaptability to various diameter pipe channels is improved so that the connection between the multi-diameter pipe tubular members is tighter.
In this embodiment, the connection member 500 includes an outer limit plate 510, an inner limit plate 520, and a first telescopic rod 530. The outer stopper plate 510 is vertically fixed on the front end surface of the outer pipe fixing strip 300. The inner stopper plate 520 is vertically fixed to the front end surface of the inner pipe fixing strip 400, and is parallel to the outer stopper plate 510. One end of the first telescopic rod 530 is hinged to the outer limiting plate 510, and the other end of the first telescopic rod is hinged to the inner limiting plate 520, so that the front end face of the inner pipe fixing strip 400 and the front end face of the outer pipe fixing strip 300 are always in the same plane.
In this embodiment, the closure 600 comprises an outer closure strip 610, an inner closure strip 620 and a synchronizing structure. Outer shutoff strip 610 is the arc strip that sets up along outer pipe fitting fixed strip 300 circumference, and the cross-section of outer shutoff strip 610 near the one end of outer pipe fitting fixed strip 300 front end is tip-out trapezoidal, keeps away from the cross-section of the one end of outer pipe fitting fixed strip 300 front end and is tip-out triangle-shaped. The outer blocking strip 610 is slidably installed in an outer gap defined by the slope of the outer pipe member fixing strip 300, the outer sidewall of the inner pipe member fixing strip 400 and the large-diameter pipe 100.
The synchronizing structure is configured to drive the outer plugging strip 610 to be inserted into the outer gap by a greater length so that the cross-section of the plugged outer gap is gradually changed from a trapezoid to a triangle when the outer and inner pipe fixing strips 300 and 400 are radially spaced apart from each other, and to drive the inner plugging strip 620 to be inserted into the inner gap by a greater length so that the cross-section of the plugged inner gap is gradually changed from a trapezoid to a triangle, thereby plugging the outer and inner gaps formed by the radially spaced apart outer and inner pipe fixing strips 300 and 400 to improve the sealability at the junction of the large-diameter pipe 100 and the small-diameter pipe 200.
In this embodiment, the synchronizing structure includes a first oil cylinder 631, a second oil cylinder 632, and a second telescopic rod 633. The outer limiting plate 510 is provided with a vertically arranged chute. The first cylinder 631 is disposed between the outer limit plate 510 and the inner limit plate 520. The cylinder body of the first oil cylinder 631 is fixed on the inner limit plate 520, and the piston rod of the first oil cylinder 631 is installed in the sliding groove of the outer limit plate 510 along the radial direction of the outer pipe fixing strip 300 in a sliding manner. The second cylinder 632 is fixed to the front end of the outer tube fixing bar 300 by a fixing rod. The piston rod of the second cylinder 632 is fixed with the outer plugging strip 610. The second cylinder 632 is communicated with the first cylinder 631 through a hose. One end of the second telescopic rod 633 is hinged on the outer plugging strip 610, the other end is hinged on the inner plugging strip 620, and the second telescopic rod is used for compressing the first oil cylinder 631 and injecting oil liquid in the first oil cylinder 631 into the second oil cylinder 632 through the hose pressure when the outer pipe fixing strip 300 and the inner pipe fixing strip 400 are radially away from each other, so that the distance between the outer limiting plate 510 and the inner limiting plate 520 is reduced, and the piston shaft of the second oil cylinder 632 is driven to extend, and the length of the outer plugging strip 610 inserted into the outer gap is increased.
In this embodiment, the drive member includes a drive cylinder structure 710 and a telescoping oil tube 730. The telescopic oil pipe 730 is in a spiral shape and comprises a sub pipe and a main pipe; one end of the sub pipe is slidably inserted into one end of the main pipe, and the sub pipe and the main pipe are in sliding seal; the back of female pipe other end shutoff and the fixed strip 300 rear end fixed connection of outer pipe fitting, the sub-pipe other end and the fixed strip 400 rear end fixed connection of inner pipe fitting for when the sub-pipe from flexible oil pipe 730 impresses hydraulic oil, because the one end that the sub-pipe was kept away from to the female pipe of flexible oil pipe 730 is the shutoff state, then along with the impressing of hydraulic oil and make the interior hydraulic pressure of flexible oil pipe 730 increase, thereby under hydraulic oil pressure drive, the sub-pipe and the female pipe of flexible oil pipe 730 keep away from each other, realize the extension of flexible oil pipe 730. The driving hydraulic cylinder structure 710 is arranged at the rear side of the outer pipe fixing strip 300 and is provided with a hydraulic cavity 720 filled with hydraulic oil. The hydraulic cavity 720 is provided with an oil outlet 721, and the oil outlet 721 is communicated with the telescopic oil pipe 730 through a rigid pipe. Be equipped with first one-way structure and second one-way structure in the hydraulic pressure chamber 720, first one-way structure is used for promoting the hydraulic oil in the hydraulic pressure chamber 720 to impress flexible oil pipe 730 and make flexible oil pipe 730 extension when major diameter pipe 100 and minor diameter pipe 200 rotate along the clockwise, second one-way structure is used for promoting the hydraulic oil in the hydraulic pressure chamber 720 to impress flexible oil pipe 730 and make flexible oil pipe 730 extension when major diameter pipe 100 and minor diameter pipe 200 rotate along the anticlockwise to make outer pipe fitting fixed strip 300 rear end and inner pipe fitting fixed strip 400 rear end rotate the opposite direction and keep away from each other when realizing major diameter pipe 100 and minor diameter pipe 200 and rotating, so that outer pipe fitting fixed strip 300 rear end and inner pipe fitting fixed strip 400 are kept away from each other along radial.
In this embodiment, the driving hydraulic cylinder structure 710 includes a mounting ring 711, a swivel 712, a drum 713, a first push block 714, and a second push block 715. A mounting ring 711 is coaxially provided at the rear side of the outer pipe fixing strip 300. The mounting ring 711 is provided with a mounting groove at an end thereof adjacent to the outer pipe fixing strip 300. The mounting groove is an annular groove. The bowl 713 is coaxially and rotatably mounted on the inner wall of the mounting groove. The bowl 713 is friction fit with the small diameter tube 200. A swivel 712 is coaxially and rotatably mounted on the outer wall of the mounting groove and the side peripheral wall of the bowl 713. Swivel 712 is friction fit with large diameter pipe 100. Swivel 712 and bowl 713 enclose the mounting slot into a sealed chamber. The first push block 714 is disposed in the seal cavity and is in sliding seal with the seal cavity. The second push block 715 is disposed in the sealing cavity and is in sliding sealing with the sealing cavity. The second push block 715 and the first push block 714 divide the seal chamber into a hydraulic chamber 720 and an air chamber that are not conductive to each other. The air cavity is communicated with the outside.
The first unidirectional structure is a first unidirectional tooth. First one-way teeth are provided between the first push block 714 and the rotary ring 712 and between the first push block 714 and the rotary drum 713 to drive the first push block 714 to rotate in the clockwise direction when the rotary ring 712 rotates in the clockwise direction, to cause the first push block 714 and the rotary ring 712 to slide relatively when the rotary ring 712 rotates in the counterclockwise direction, to drive the first push block 714 to rotate in the clockwise direction when the rotary drum 713 rotates in the clockwise direction, and to cause the first push block 714 and the rotary drum 713 to slide relatively when the rotary drum 713 rotates in the counterclockwise direction.
The second unidirectional structure is a second unidirectional tooth. The second one-way teeth are provided between the second push block 715 and the swivel 712 and between the second push block 715 and the drum 713 to drive the second push block 715 to rotate in the counterclockwise direction when the swivel 712 rotates in the counterclockwise direction, to slide the second push block 715 and the swivel 712 relatively when the swivel 712 rotates in the clockwise direction, to drive the second push block 715 to rotate in the counterclockwise direction when the drum 713 rotates in the counterclockwise direction, and to slide the second push block 715 and the drum 713 relatively when the drum 713 rotates in the clockwise direction, so that the first push block 714 and the second push block 715 are brought closer to each other when the large-diameter tube 100 drives the swivel 712 and the small-diameter tube 200 drives the drum 713 to rotate clockwise or counterclockwise.
In this embodiment, a check valve 740 is provided between the telescopic oil pipe 730 and the rigid pipe to prevent the hydraulic oil from flowing back from the telescopic oil pipe 730 to the hydraulic chamber 720.
In this embodiment, the swivel 712 has a plurality of outer friction posts 750 near one end of the outer tube securing bar 300. A plurality of inner friction posts 760 are provided on the inside wall of bowl 713 such that large diameter tube 100 and outer friction posts 750 are frictionally driven to rotate rotating ring 712 in unison and small diameter tube 200 and inner friction posts 760 are frictionally driven to rotate rotating bowl 713 in unison.
In this embodiment, a layer of rubber is provided on the outer wall of the outer tube fixing strip 300. A layer of rubber is provided on the outer wall of the inner pipe fixing strip 400 to improve the sealability when the outer pipe fixing strip 300 is pressed against the inner wall of the large-diameter pipe 100 and the inner pipe fixing strip 400 is pressed against the outer wall of the small-diameter pipe 200.
In this embodiment, the outer side wall of the outer tube fixing strip 300 is provided with ratchets. The outer side wall of the inner pipe fixing strip 400 is provided with ratchets so that the outer pipe fixing strip 300 is pressed on the inner wall of the large-diameter pipe 100, and the inner pipe fixing strip 400 is pressed on the outer wall of the small-diameter pipe 200 to improve the fastening effect of the outer pipe fixing strip 300 on the inner wall of the large-diameter pipe 100 and the inner pipe fixing strip 400 on the outer wall of the small-diameter pipe 200.
With the above embodiments, the usage principle and the working process of the present invention are as follows: in use, the outer and inner tube member strips 300, 400 are installed between the large diameter tube 100 and the small diameter tube 200, the collar 711 is fitted over the small diameter tube 200, and the inner friction post 760 abuts the small diameter tube 200 and the outer friction post 750 abuts the large diameter tube 100. The large diameter tube 100 and the outer friction cylinder 750 are frictionally driven to rotate the rotating bowl 712 synchronously, and the small diameter tube 200 and the inner friction cylinder 760 are frictionally driven to rotate the rotating bowl 713 synchronously.
When installed, the large diameter tube 100 and the small diameter tube 200 are fixed against rotation, and the mounting ring 711 is rotated to rotate the swivel 712 and the drum 713 relative to the mounting ring 711. When the mounting ring 711 rotates counterclockwise, the rotary ring 712 and the rotary drum 713 rotate clockwise relative to the mounting ring 711, the first pushing block 714 rotates clockwise relative to the mounting ring 711 and approaches the second pushing block 715 under the driving of the first one-way teeth, and when the mounting ring 711 rotates clockwise, the rotary ring 712 and the rotary drum 713 rotate counterclockwise relative to the mounting ring 711, the second pushing block 715 rotates counterclockwise relative to the mounting ring 711 and approaches the first pushing block 714 under the driving of the second one-way teeth. No matter the collar 711 rotates clockwise or anticlockwise, all make first ejector pad 714 and second ejector pad 715 be close to each other, then promote the hydraulic oil in the hydraulic pressure chamber 720 and get into flexible oil pipe 730, make flexible oil pipe 730 extension, thereby make outer fixed strip 300 of pipe spare and the fixed strip 400 of inner pipe spare keep away from each other along trapezoidal inclined plane, and make the fixed strip 300 diameter grow of outer pipe spare so that the fixed strip 300 lateral wall of outer pipe spare expands outward and to 100 inside wall offsets of major diameter pipe, and simultaneously, the fixed strip 400 diameter of inner pipe spare diminishes so that the fixed strip 400 inside wall of inner pipe spare contracts to and compresses tightly with the outside wall offsets of minor diameter pipe 200.
After the installation is completed, there are three abnormal conditions in the abnormal operation in which the large-diameter pipe 100 or the small-diameter pipe 200 is rotated due to external factors. First, when the large-diameter tube 100 and the small-diameter tube 200 rotate clockwise, the rotary ring 712 and the rotary drum 713 drive the first push block 714 to rotate clockwise and approach the second push block 715 through the first one-way teeth; secondly, when the large-diameter tube 100 and the small-diameter tube 200 rotate counterclockwise, the rotary ring 712 and the rotary drum 713 drive the second push block 715 to rotate counterclockwise and approach the first push block 714 through the second one-way teeth; thirdly, when the large-diameter pipe 100 is rotated clockwise, the rotary ring 712 drives the first push block 714 to be rotated clockwise by the first one-way teeth, and when the small-diameter pipe 200 is rotated counterclockwise, the rotary drum 713 drives the second push block 715 to be rotated counterclockwise by the second one-way teeth, so that the first push block 714 and the second push block 715 are close to each other. The three ways make the first pushing block 714 and the second pushing block 715 approach each other to push the hydraulic oil in the hydraulic cavity 720 to enter the telescopic oil pipe 730, so that the telescopic oil pipe 730 extends to drive the outer pipe fixing strip 300 and the inner pipe fixing strip 400 to move away from each other along the trapezoidal inclined plane, and the diameter of the outer pipe fixing strip 300 is increased to expand the outer side wall of the outer pipe fixing strip 300 to abut against the inner side wall of the large-diameter pipe 100. Meanwhile, the diameter of the inner pipe member fixing strip 400 becomes small so that the inner sidewall of the inner pipe member fixing strip 400 is inwardly contracted to abut against and press against the outer sidewall of the small-diameter pipe 200. That is, when the external factors cause the large-diameter pipe 100 or the small-diameter pipe 200 to rotate, the present apparatus makes the connection tighter, further improving the adaptability to the surrounding environment.
When outer pipe fitting fixed strip 300 and inner pipe fitting fixed strip 400 are radially kept away from each other, the distance between outer limiting plate 510 and interior limiting plate 520 reduces, then compress first hydro-cylinder 631 and make the fluid in the first hydro-cylinder 631 pass through the hose pressure and pour into in the second hydro-cylinder 632, thereby drive second hydro-cylinder 632 piston shaft extension, make outer shutoff strip 610 insert outer clearance length grow, so that the cross section of shutoff outer clearance is by trapezoidal gradually to triangle-shaped transformation, interior shutoff strip 620 inserts inner clearance length grow, so that the cross section of shutoff inner clearance is by trapezoidal gradually to triangle-shaped transformation. Thereby blocking a gap formed when the outer pipe member fixing strip 300 and the inner pipe member fixing strip 400 are separated from each other, and improving sealability of the connection of the large-diameter pipe 100 and the small-diameter pipe 200.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An adaptive connection device for multi-diameter tubular members, characterized by: the method comprises the following steps:
the pipe fixing piece is arranged between the large-diameter pipe and the small-diameter pipe and comprises an outer pipe fixing strip and an inner pipe fixing strip; the outer pipe fixing strip is a threaded elastic strip arranged in front of and behind the axis; the radial cross section of the outer pipe fixing strip is trapezoidal with the small end facing inwards; the inner pipe fitting fixing strip is a threaded elastic strip coaxially arranged in the outer pipe fitting fixing strip, and the radial cross section of the inner pipe fitting fixing strip is in a trapezoid shape with the small end facing outwards; the spiral directions of the inner pipe fixing strip and the outer pipe fixing strip are the same, and the small end of the inner pipe fixing strip is meshed with the small end of the outer pipe fixing strip;
the connecting piece is arranged at the front end of the outer pipe fixing strip and used for preventing the front end of the inner pipe fixing strip and the front end of the outer pipe fixing strip from rotating relatively;
the driving piece is arranged at the rear end of the outer pipe fixing strip and is configured to drive the rear end of the outer pipe fixing strip and the rear end of the inner pipe fixing strip to rotate in opposite directions and to be away from each other, the outer pipe fixing strip and the inner pipe fixing strip are driven to be away from each other along the trapezoidal inclined plane under the cooperation of the connecting piece, the diameter of the outer pipe fixing strip is increased to enable the outer side wall of the outer pipe fixing strip to be expanded to be abutted against the inner side wall of the large-diameter pipe, and meanwhile, the diameter of the inner pipe fixing strip is decreased to enable the inner side wall of the inner pipe fixing strip to be contracted to be abutted against the outer side wall of the small-diameter pipe;
the plugging piece is arranged at the front end of the outer pipe fixing strip and is configured to plug a gap formed when the outer pipe fixing strip and the inner pipe fixing strip are far away from each other in the radial direction.
2. The adaptive connection device for multi-diameter tubular members according to claim 1, wherein: the connecting piece comprises an outer limiting plate, an inner limiting plate and a first telescopic rod; the outer limiting plate is vertically fixed on the end face of the front end of the outer pipe fitting fixing strip; the inner limiting plate is vertically fixed on the end face of the front end of the inner pipe fitting fixing strip and is parallel to the outer limiting plate; one end of the first telescopic rod is hinged to the outer limiting plate, and the other end of the first telescopic rod is hinged to the inner limiting plate.
3. An adaptive connection device for multi-diameter tubular members according to claim 2, wherein: the plugging piece comprises an outer plugging strip, an inner plugging strip and a synchronous structure;
the outer plugging strip is an arc-shaped strip arranged along the circumferential direction of the outer pipe fixing strip, the section of one end, close to the front end of the outer pipe fixing strip, of the outer plugging strip is a trapezoid with the small end facing outwards, and the section of one end, far away from the front end of the outer pipe fixing strip, of the outer plugging strip is a triangle with the small end facing outwards; the outer plugging strip is slidably arranged in an outer gap defined by the inclined plane of the outer pipe fixing strip, the outer side wall of the inner pipe fixing strip and the large-diameter pipe;
the inner plugging strip is an arc-shaped strip arranged along the circumferential direction of the inner pipe fitting fixing strip, the section of one end, close to the front end of the inner pipe fitting fixing strip, of the inner plugging strip is a trapezoid with an inward small end, and the section of one end, far away from the front end of the inner pipe fitting fixing strip, of the inner plugging strip is a triangle with an inward small end; the inner plugging strip is slidably arranged in an inner gap defined by the inclined plane of the inner pipe fitting fixing strip, the inner side wall of the outer pipe fitting fixing strip and the small-diameter pipe;
the synchronous structure is configured to drive the outer plugging strip to be inserted into the outer gap to be longer when the outer pipe fitting fixing strip and the inner pipe fitting fixing strip are far away from each other in the radial direction, so that the cross section of the outer plugging gap is gradually changed from a trapezoid to a triangle, and the inner plugging strip is inserted into the inner gap to be longer, so that the cross section of the inner plugging gap is gradually changed from the trapezoid to the triangle.
4. An adaptive connection device for multi-diameter tubular members according to claim 3, wherein: the synchronous structure comprises a first oil cylinder, a second oil cylinder and a second telescopic rod;
the first oil cylinder is arranged between the outer limiting plate and the inner limiting plate; the first oil cylinder body is fixed on the inner limiting plate, and the first oil cylinder piston rod is arranged on the outer limiting plate in a radially slidable manner along the outer pipe fixing strip;
the second oil cylinder body is fixed on the front end face of the outer pipe fixing strip through a fixing rod; a piston rod of the second oil cylinder is fixed with the outer plugging strip; the second oil cylinder is communicated with the first oil cylinder through a hose;
one end of the second telescopic rod is hinged on the outer plugging strip, and the other end of the second telescopic rod is hinged on the inner plugging strip.
5. An adaptive connection device for multi-diameter tubular members according to claim 4, wherein: the driving piece comprises a driving hydraulic cylinder structure and a telescopic oil pipe;
the telescopic oil pipe is in a spiral shape and comprises a sub pipe and a main pipe; one end of the sub pipe is slidably inserted into one end of the main pipe, and the sub pipe and the main pipe are in sliding seal; the other end of the main pipe is fixedly connected with the rear end of the outer pipe fixing strip after being plugged, and the other end of the sub pipe is fixedly connected with the rear end of the inner pipe fixing strip, so that when hydraulic oil is pressed in from the sub pipe of the telescopic oil pipe, as the end, far away from the sub pipe, of the main pipe of the telescopic oil pipe is in a plugging state, hydraulic pressure in the telescopic oil pipe is increased along with the pressing in of the hydraulic oil, and therefore the sub pipe and the main pipe of the telescopic oil pipe are far away from each other under the driving of the hydraulic oil pressure of the hydraulic oil, and the telescopic oil pipe is stretched;
the driving hydraulic cylinder structure is arranged at the rear side of the outer pipe fixing strip and is provided with a hydraulic cavity filled with hydraulic oil; the hydraulic cavity is communicated with the telescopic oil pipe through a rigid pipe; hydraulic pressure intracavity is equipped with first one-way structure and second one-way structure, first one-way structure is used for pushing the flexible oil pipe of the hydraulic pressure intracavity and making flexible oil pipe extension when big diameter pipe and minor diameter pipe rotate along clockwise, second one-way structure is used for pushing the flexible oil pipe of the hydraulic pressure intracavity and making flexible oil pipe extension when big diameter pipe and minor diameter pipe rotate along counter-clockwise, make outer fixed strip rear end of pipe fitting and the fixed strip rear end of inner pipe fitting rotate opposite direction and keep away from each other when realizing big diameter pipe and minor diameter pipe rotation.
6. An adaptive connection device for multi-diameter tubular members according to claim 5, wherein: the driving hydraulic cylinder structure comprises a mounting ring, a rotating cylinder, a first push block and a second push block;
the mounting ring is coaxially arranged at the rear side of the outer pipe fixing strip; one end of the mounting ring close to the outer pipe fixing strip is provided with a mounting groove; the mounting groove is an annular groove; the rotary drum is coaxially and rotatably arranged on the inner groove wall of the mounting groove; the rotating cylinder is in friction fit with the small-diameter pipe;
the rotating ring is coaxially and rotatably arranged on the outer groove wall of the mounting groove and the side peripheral wall of the rotating cylinder; the rotating ring is in friction fit with the large-diameter pipe; the mounting groove is enclosed by the rotary ring and the rotary drum to form a sealing cavity;
the first push block is arranged in the sealing cavity and is in sliding sealing with the sealing cavity;
the second push block is arranged in the sealing cavity and is in sliding sealing with the sealing cavity; the second push block and the first push block divide the sealing cavity into a hydraulic cavity and an air cavity which are not communicated with each other; the air cavity is communicated with the outside;
the first unidirectional structure is a first unidirectional tooth; the first one-way teeth are arranged between the first push block and the rotating ring and between the first push block and the rotating drum so as to drive the first push block to rotate in the clockwise direction when the rotating ring rotates in the clockwise direction, enable the first push block and the rotating ring to slide relatively when the rotating ring rotates in the anticlockwise direction, drive the first push block to rotate in the clockwise direction when the rotating drum rotates in the clockwise direction, and enable the first push block and the rotating drum to slide relatively when the rotating drum rotates in the anticlockwise direction;
the second unidirectional structure is a second unidirectional tooth; the one-way tooth of second is established between second ejector pad and swivel to and between second ejector pad and the rotary drum, rotate along the anticlockwise when the swivel rotates along the anticlockwise, when the swivel rotates along the clockwise, make second ejector pad and swivel relative slip, drive second ejector pad when the rotary drum rotates along the anticlockwise and rotate along the anticlockwise, when the rotary drum rotates along the clockwise, make second ejector pad and rotary drum relative slip.
7. An adaptive connection device for multi-diameter tubular members according to claim 6, wherein: a one-way valve is arranged between the telescopic oil pipe and the rigid pipe.
8. The adaptive connection device for multi-diameter tubular members according to claim 7, wherein: a plurality of outer friction columns are arranged at one end of the rotating ring close to the outer pipe fixing strip; the inner side wall of the rotary drum is provided with a plurality of inner friction columns.
9. The adaptive connection device for multi-diameter tubular members according to claim 8, wherein: a layer of rubber is arranged on the outer wall of the outer pipe fixing strip; the outer wall of the inner pipe fitting fixing strip is provided with a layer of rubber.
10. The adaptive connection device for multi-diameter tubular members according to claim 9, wherein: the outer side wall of the outer pipe fixing strip is provided with a ratchet; the outer side wall of the inner pipe fitting fixing strip is provided with a ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210649111.XA CN114738569B (en) | 2022-06-10 | 2022-06-10 | Self-adaptive connecting device for multi-diameter tubular members |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210649111.XA CN114738569B (en) | 2022-06-10 | 2022-06-10 | Self-adaptive connecting device for multi-diameter tubular members |
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| CN114738569B true CN114738569B (en) | 2022-08-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730810A (en) * | 2007-06-27 | 2010-06-09 | 特纳瑞斯连接股份公司 | Inipple with pressurizable seal |
| CN105257926A (en) * | 2015-09-24 | 2016-01-20 | 宁波科尼管洁净科技有限公司 | Tube sealing part capable of adjusting sealing caliber and sealing method thereof |
| CN105351642A (en) * | 2015-12-10 | 2016-02-24 | 无锡拓能自动化科技有限公司 | High-pressure pipeline joint |
| CN216555864U (en) * | 2021-11-20 | 2022-05-17 | 大连生远机械有限公司 | Differential pressure pipe convenient to installation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112012011760A2 (en) * | 2009-11-20 | 2018-03-27 | Puku Ltd | connector to hold an elastically deformable tube and mounting kit. |
| US9249912B2 (en) * | 2010-12-30 | 2016-02-02 | Eaton Corporation | Hose coupling with retaining spring |
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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730810A (en) * | 2007-06-27 | 2010-06-09 | 特纳瑞斯连接股份公司 | Inipple with pressurizable seal |
| CN105257926A (en) * | 2015-09-24 | 2016-01-20 | 宁波科尼管洁净科技有限公司 | Tube sealing part capable of adjusting sealing caliber and sealing method thereof |
| CN105351642A (en) * | 2015-12-10 | 2016-02-24 | 无锡拓能自动化科技有限公司 | High-pressure pipeline joint |
| CN216555864U (en) * | 2021-11-20 | 2022-05-17 | 大连生远机械有限公司 | Differential pressure pipe convenient to installation |
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| CN114738569A (en) | 2022-07-12 |
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