CN112605200A - Pipeline flanging tool and method for quickly connecting pipe fittings through tool - Google Patents

Pipeline flanging tool and method for quickly connecting pipe fittings through tool Download PDF

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Publication number
CN112605200A
CN112605200A CN202010620914.3A CN202010620914A CN112605200A CN 112605200 A CN112605200 A CN 112605200A CN 202010620914 A CN202010620914 A CN 202010620914A CN 112605200 A CN112605200 A CN 112605200A
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China
Prior art keywords
pipe
nut
pipeline
clamping
control
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CN202010620914.3A
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Chinese (zh)
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CN112605200B (en
Inventor
盛斌
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Zhenlan Pipe Technology Co ltd
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Zhenlan Pipe Technology Co ltd
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Priority to CN202010620914.3A priority Critical patent/CN112605200B/en
Publication of CN112605200A publication Critical patent/CN112605200A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/08Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/02Enlarging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention discloses a pipeline flanging tool and a method for quickly connecting pipe fittings through the tool, and relates to a pipeline processing technology. A method for quickly connecting pipe fittings is used for quickly connecting the pipe fittings through a pipe flanging tool.

Description

Pipeline flanging tool and method for quickly connecting pipe fittings through tool
Technical Field
The invention relates to the technical field of pipeline processing, in particular to a pipeline flanging tool.
Background
The pipeline can be used for conveying gaseous or liquid media, and in actual use, in order to realize connection between pipelines and meet the requirement on sealing performance after connection, the end face of the pipeline is required to be flanged outwards.
This type of turn-ups instrument, the frock that use now often has certain defect, wherein the most main defect lies in, when carrying out the flaring turn-ups of pipeline, used extrusion die often is irrotational, lead to when the extrusion pipeline tip, make the pipeline tip tear easily, not only influence work efficiency, and simultaneously, the injury to the pipeline is great, and the reason that leads to this condition still lies in this type of turn-ups instrument, the frock is when pipeline clamping, centre gripping, its centering precision is not enough, there is great error in the direction of motion that leads to pipeline axial and extrusion die.
Disclosure of Invention
The invention aims to provide a pipeline flanging tool to solve the problems.
The invention also aims to provide a method for quickly connecting pipe fittings, so that the pipe fittings can be quickly connected through a pipeline flanging tool.
The specific technical scheme is as follows:
a pipeline flanging tool comprises a hole expanding device and a clamping device, and is characterized in that the clamping device is detachably and fixedly connected with the hole expanding device and used for clamping a pipeline, and the hole expanding device is connected to one side of the clamping device and used for expanding and flanging the pipeline;
the reaming device comprises a working shaft and a working pipe, wherein the working pipe comprises a reset pipe, a rotating pipe and a control pipe, the reset pipe, the rotating pipe and the control pipe are communicated and coaxially arranged and are sequentially in threaded connection, the working shaft is arranged in the working pipe, one end of the working shaft protrudes out of the reset pipe and is in threaded connection with an extrusion die for flaring and flanging the pipeline, and the working shaft is divided according to the position in the working pipe and can be divided into a reset section, a rotating section and a control section;
the working shaft is in clearance sliding fit with the reset tube, the rotating tube and the control tube respectively through a sliding shaft sleeve and is coaxially arranged, two ends of the reset tube are provided with limit bosses, internal threads are arranged in the rotating tube, the control tube is provided with a control lever, a driven gear and a plug, the reset section is provided with a limit seat and sleeved with a reset spring, two ends of the reset spring are respectively abutted against the limit seat and the limit bosses, the outer wall of the rotating section is provided with external threads which are in threaded fit with the internal threads in the rotating tube, the control section and the rotating section are rotationally connected through a plane bearing, the outer wall of the control section is provided with a plurality of tooth openings, the tooth openings are annular, the tooth openings are uniformly distributed at equal intervals along the axial direction of the control section, one end of the control lever is provided with a handle, the other end of the control lever is fixedly connected with a driving gear, and the outer wall of, the driven gear is rotatably arranged in the notch and meshed with the tooth opening outside the control section, and the driving gear is hinged with the control pipe and meshed with the driven gear;
furthermore, a cover shell is arranged outside the control pipe, covers outside the driving gear and covers the notch;
further, the clamping device is connected with the hole expanding device through a screw rod and is positioned and fixed through a nut;
furthermore, the clamping device comprises a guide block and tightening heads, the middle part of the guide block is provided with a pipeline hole for a pipeline to pass through, and the number of the tightening heads is 2, and the tightening heads are symmetrically arranged at two ends of the pipeline hole;
furthermore, the clamping device comprises 2 mounting panels, connecting blocks, clamping plates and clamping plate control blocks, wherein the number of the mounting panels is 2, the mounting panels are symmetrically arranged, the middle parts of the mounting panels are provided with pipeline holes for pipelines to pass through, the number of the connecting blocks is 2, the connecting blocks are symmetrically arranged and arranged among the 2 mounting panels;
the number of the clamping plates is at least 2, the clamping plates are rotatably connected between the mounting panels through shaft levers, the clamping plates are arc-shaped plates, two ends of the shaft levers are fixedly connected with the mounting panels, and the plurality of clamping plates are mounted between the connecting blocks and are circumferentially and uniformly distributed around the pipeline holes;
the middle parts of the 2 connecting blocks are respectively provided with a sliding chute, the sliding chutes are arc-shaped and are symmetrically arranged, the splint control block is in a circular ring shape and is sleeved outside the splint, the outer side surface of the circular ring shape of the splint control block is in sliding fit with the sliding chutes, the inner side surface of the splint control block is provided with a plurality of extrusion flanges, and the extrusion flanges correspond to the splint one by one and are extruded on the outer side surface of the splint;
the inner side surface and the outer side surface of the arc-shaped splint are arc-shaped, the width of the splint is gradually increased, the splint control block freely rotates through the sliding groove, the extrusion flange is controlled to move on the outer side surface of the splint, the splint is further extruded, the distance between the inner side surface of the splint and the central axis of the pipeline hole is adjusted, and the pipeline is further clamped;
furthermore, two ends of the clamping plate are connected with torsion springs, one ends of the torsion springs are fixedly connected with the clamping plate, and the other ends of the torsion springs are fixedly connected with the shaft lever or the mounting panel; the clamping plate moves towards the direction far away from the central axis of the pipeline hole under the torsion action of the torsion spring;
further, a rubber gasket is bonded on the inner side surface of the clamping plate;
furthermore, a control handle is fixedly connected to the outer wall of the clamping plate control block;
furthermore, an anti-slip sleeve is wrapped outside the control handle (37);
furthermore, a ratchet wheel is fixedly arranged on the annular side face of the clamping plate control block, the ratchet wheel and the clamping plate control block are coaxially arranged, a pawl is hinged to the connecting block and correspondingly matched with the clamping plate control block to prevent the clamping plate control block from reversing, and a first spring is connected to the pawl and resets through the first spring.
The invention has the beneficial effects that:
the invention provides a pipeline flanging tool, which comprises a reaming device and a clamping device, wherein the clamping device is detachably and fixedly connected with the reaming device and is used for clamping a pipeline, the reaming device is connected to one side of the clamping device and is used for flaring and flanging the pipeline, and the reaming device comprises a working shaft and a working pipe.
A method of quick connection of pipe fittings, characterized by:
step one, sleeving a first nut on each of two pipes to be connected, wherein the outer surface of the first nut is provided with an external thread;
secondly, flanging the pipe orifices of the two pipe fittings by using a pipeline flanging tool, wherein the distance from the flanging to the central axis of the pipe fittings is smaller than the distance from the external thread to the central axis of the first nut;
placing one pipe fitting on the right side to serve as a right pipe, wherein the left end of the right pipe is a flanging, and a first nut sleeved on the right pipe is used as a right nut; the other pipe fitting is placed on the left side and used as a left pipe, the right end of the left pipe is a flanging, and a first nut sleeved on the left pipe is used as a left nut;
step four, preparing a connecting nut, wherein an internal thread matched with the external thread is arranged on the inner side wall of the connecting nut, and the connecting nut is sleeved outside the two first nuts;
and step five, enabling the first nut and the connecting nut to move relatively until the two flanges are pressed together, so that the two pipe fittings are connected together.
Furthermore, the right nut and the left nut have opposite screw directions, an inner side wall of the connecting nut is provided with an inner thread matched with the outer thread, and the screw directions of the part of the inner thread on the left side and the part of the inner thread on the right side are opposite, so that when the connecting nut is screwed, the two first nuts are screwed in or out simultaneously.
Furthermore, the outer contour of the nut for connection is in a hexagonal column shape. Thereby facilitating screwing.
Further, the sum of the length values of the two first nuts is larger than the length value of the connecting nut.
Furthermore, the left end of the left nut is a clamping section, and the rest is a connecting section; the right end of the right nut is a clamping section, and the rest of the right nut is a connecting section; the outer contour of the clamping section is hexagonal column-shaped, the external thread is positioned on the connecting section, and the length of the connecting section is not less than one half of the length of the connecting nut.
Furthermore, one or two annular grooves are formed in the inner side wall of the first nut, and sealing rings are arranged in the annular grooves.
Or one or two annular grooves are formed in the outer side wall of the pipe fitting, and sealing rings are arranged in the annular grooves.
The distance between the sealing ring and the flanging is smaller than the length of the first nut.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of a reaming device.
Fig. 3 is a cross-sectional view of the reaming device.
FIG. 4 is a cross-sectional view of the second embodiment of the present invention.
FIG. 5 is a schematic view of the third embodiment of the present invention.
FIG. 6 is a top view of the third embodiment of the clamping device.
Fig. 7 is a front view of the clamping device of fig. 6.
Fig. 8 is a longitudinal sectional view of the clamping device of fig. 6.
Fig. 9 is a schematic structural diagram of main components in a pipe connecting process according to the method of the present patent.
Detailed Description
In order to make the technical solution of the present invention clearer and clearer, the present invention is further described below with reference to embodiments, and any solution obtained by substituting technical features of the technical solution of the present invention with equivalents and performing conventional reasoning falls within the scope of the present invention.
Example one
The pipeline flanging tool comprises a hole expanding device 1 and a clamping device 2, and is characterized in that the clamping device 2 is detachably and fixedly connected with the hole expanding device 1 and used for clamping a pipeline, and the hole expanding device 1 is connected to one side of the clamping device 2 and used for expanding and flanging the pipeline;
the reaming device 1 comprises a working shaft 3 and a working pipe 4, the working pipe 4 comprises a reset pipe 5, a rotating pipe 6 and a control pipe 7, the reset pipe 5, the rotating pipe 6 and the control pipe 7 are communicated and coaxially arranged and are sequentially in threaded connection, the working shaft 3 is arranged in the working pipe 4, one end of the working shaft protrudes out of the reset pipe 5 and is in threaded connection with an extrusion die 8 for flaring and flanging of a pipeline, and the working shaft 3 is divided into a reset section 9, a rotating section 10 and a control section 11 according to the position in the working pipe 4;
the working shaft 3 is in clearance sliding fit with the reset tube 5, the rotating tube 6 and the control tube 7 through the sliding shaft sleeve 12 and is coaxially arranged, the two ends of the reset tube 5 are provided with limit bosses 13, internal threads 14 are arranged in the rotating tube 6, the control tube 7 is provided with a control lever 15, a driven gear 16 and a plug 17, the reset section 9 is provided with a limit seat 18 and is sleeved with a reset spring 19, the two ends of the reset spring 19 are respectively abutted against the limit seat 18 and the limit bosses 13, the outer wall of the rotating section 10 is provided with external threads 20, the external threads 20 are in threaded fit with the internal threads 14 in the rotating tube 6, the control section 11 is rotatably connected with the rotating section 10 through a plane bearing 21, the outer wall of the control section 11 is provided with a plurality of tooth openings 22, the tooth openings 22 are annular, the plurality of tooth openings 22 are uniformly distributed at equal intervals along the axial direction of the control section 11, one end of the control lever 15 is provided with a handle, the other end of the control tube 7 is fixedly connected with a driving gear 24, the outer wall of the control tube 7 is provided with a notch 25 communicated with the inner wall of the control tube, the driven gear 16 is rotatably arranged in the notch 25 and is meshed with a tooth opening 22 outside the control section 11, and the driving gear 24 is hinged with the control tube 7 and is meshed with the driven gear 16;
further, a cover 41 is arranged outside the control tube 7, the cover 41 covers the driving gear 24 and shields the notch 25;
the utility model provides a pipeline turn-ups frock for the flaring turn-ups of pipeline, its rationale is: clamping and fixing the pipeline to be processed through a clamping device, and then extruding the end part of the pipeline through an extrusion die on a hole expanding device to expand and turn over the end part of the pipeline;
the specific working principle is as follows:
when flaring and flanging of the pipeline are carried out, firstly, the pipeline to be processed is clamped and fixed through a clamping device, after the pipeline is clamped, a handle is pressed to enable a control lever to move clockwise (taking the direction of figure 1 as an example), at the moment, a driving gear rotates clockwise to drive a driven gear to rotate anticlockwise, and further, a tooth opening on a control section is stirred to drive a working shaft to move upwards (taking the direction of figure 1 as an example, during actual use, the pipeline flaring and flanging tool is more labor-saving to place horizontally), along with the upward movement of the working shaft, a rotating section moves upwards synchronously, an external thread on the rotating section, a rotating pipe and an internal thread play a role, because the rotating pipe does not move, when the rotating section moves upwards, the rotating section starts to rotate, and further drives an extrusion die on the working shaft to move upwards and rotate (a resetting section and the rotating section are integrated, the rotating section rotates synchronously, and the rotating section and the control section, asynchronous rotation), flaring and flanging are carried out on the pipeline; after the flaring and flanging are finished, the reset spring works to drive the working shaft and the extrusion die to reset, and the control lever synchronously resets;
when the pipeline flanging tool of the embodiment is used for carrying out flaring flanging on a pipeline, the extrusion die is in rotary extrusion, the flaring process is more stable, the risk of tearing the pipeline can be greatly reduced, and the flaring flanging effect is better.
Example two
In the pipe flanging tool of the embodiment, the clamping device 2 is connected with the hole expanding device 1 through a screw and is positioned and fixed through a nut;
the clamping device 2 comprises a guide block 26 and two fastening heads 27, wherein the middle part of the guide block 26 is provided with a pipeline hole 28 for a pipeline to pass through, the number of the fastening heads 27 is 2, and the fastening heads are symmetrically arranged at two ends of the pipeline hole 28;
in this embodiment, optimize clamping device, during the use, pass the pipeline hole with the pipeline and compel tight head, screw up afterwards and compel tight head, accomplished the centre gripping of pipeline promptly, the reaming device of being convenient for carries out the flaring turn-ups, this embodiment uses the compel tight head that two-way symmetry set up to carry out the centre gripping of pipeline fixed, its convenient operation, and centering is effectual, helps improving the stability and the degree of accuracy of pipeline centre gripping, guarantees the flaring turn-ups effect of pipeline.
EXAMPLE III
The pipeline flanging tool in the embodiment comprises a clamping device 2, a reaming device 1, a connecting block 30, a clamping plate 31 and a clamping plate control block 32, wherein the clamping device 2 is connected with the reaming device 1 through a screw and is positioned and fixed through a nut, the clamping device 2 comprises 2 mounting panels 29, the connecting block 30, the clamping plate 31 and the clamping plate control block 32, the mounting panels 29 are symmetrically arranged, pipeline holes 28 for pipelines to pass through are formed in the middle of the mounting panels, the connecting block 30 is 2 and is symmetrically arranged and arranged among the 2 mounting panels 29;
the number of the clamping plates 31 is at least 2, in the embodiment, the number of the clamping plates 31 is 3, the clamping plates 31 are rotatably connected between the mounting panels 29 through shaft rods 33, the clamping plates 31 are arc-shaped plate-shaped, two ends of the shaft rods 33 are fixedly connected with the mounting panels 29, the plurality of clamping plates 31 are mounted between the connecting blocks 30 and are circumferentially and uniformly distributed around the pipeline holes 28;
the middle parts of the 2 connecting blocks 30 are respectively provided with a sliding groove 34, the sliding grooves 34 are arc-shaped and are symmetrically arranged, the clamping plate control block 32 is circular and is sleeved outside the clamping plate 31, the circular outer side surface of the clamping plate control block 32 is in sliding fit with the sliding grooves 34, the inner side surface of the clamping plate control block is provided with a plurality of extrusion flanges 35, and the extrusion flanges 35 correspond to the clamping plates 31 one by one and are extruded on the outer side surface of the clamping plate 31;
the inner side surface and the outer side surface of the arc-shaped plate-shaped clamping plate 31 are both arc-shaped, the width of the clamping plate is gradually increased, the clamping plate control block 32 freely rotates through the sliding groove 34, the extrusion flange 35 is controlled to move on the outer side surface of the clamping plate 31, the clamping plate 31 is further extruded, the distance between the inner side surface of the clamping plate 31 and the central axis of the pipeline hole 28 is adjusted, and then the clamping of the pipeline is realized;
wherein, both ends of the clamping plate 31 are connected with a torsion spring, one end of the torsion spring is fixedly connected with the clamping plate 31, and the other end is fixedly connected with the shaft lever 33 or the mounting panel 29; the clamping plate 31 moves away from the central axis of the pipeline hole 28 under the torsion action of the torsion spring;
a rubber gasket 36 is bonded on the inner side surface of the clamping plate 31, a control handle 37 is fixedly connected on the outer wall of the clamping plate control block 32, and an anti-slip sleeve is wrapped outside the control handle (37);
a ratchet wheel 38 is fixedly arranged on the circular side face of the clamping plate control block 32, the ratchet wheel 38 and the clamping plate control block 32 are coaxially arranged, a pawl 39 is hinged to the connecting block 30, the pawl 39 is correspondingly matched with the clamping plate control block 32 to prevent the clamping plate control block 32 from reversely rotating, and a first spring 40 is connected to the pawl 39 and is reset through the first spring 40;
in this embodiment, the clamping device is optimized such that, in use, the pipe is threaded through the pipe hole and the clamping plates, the control handle is rotated clockwise (as shown in fig. 7 for example), at this time, the clamping plate control block is rotated clockwise, the extrusion flanges synchronously move clockwise, and the clamping plates are extruded to force the clamping plates to approach the pipe hole in the axial direction (i.e. the clamping plates are in a contracted state), the pipe is clamped, when the clamping is finished, the pawl locks the ratchet wheel, the clamping plate control block is prevented from anticlockwise rotating, the clamping state is maintained, at the moment, the flaring and curling can be carried out through the reaming device, when the flaring and curling of the pipeline are finished, one end of the pawl can be pressed to separate the pawl from the ratchet wheel, at the moment, the control handle is rotated anticlockwise, the clamping of the pipeline can be released, at the moment, the clamping plates reset under the action of the torsion spring, and the clamping plates move in the direction opposite to the central axis of the pipeline hole (namely, the clamping plates are in an expanded shape);
this embodiment uses the splint of circumference equipartition to carry out the centre gripping to the pipeline, and its convenient operation possesses locking and unblock merit, and it is convenient to use, and the centering effect is splendid, can increase substantially the stability and the degree of accuracy of pipeline centre gripping, guarantees the flaring turn-ups effect of pipeline.
Based on the above embodiments, it should be noted that the pipeline for completing the flaring and flanging needs to be able to stably exit the pipeline hole, and therefore, it is necessary to reasonably design the size of the pipeline opening and select the extrusion die with a suitable specification, and for those skilled in the art, the extrusion die can be reasonably selected and avoided, and therefore, the details are not repeated.
In conclusion, the pipe expanding and flanging device is simple in structure and reasonable in design, is used for expanding and flanging a pipe, is used for rotary extrusion when an extrusion die moves, is more stable in an expanding process, can greatly reduce the tearing risk of the pipe, is excellent in expanding and flanging effect, is convenient to operate and convenient to use, is excellent in centering effect, can greatly improve the stability and accuracy of pipe clamping, and ensures the expanding and flanging effect of the pipe.
A method for quickly connecting pipes comprises the steps of firstly, sleeving a first nut on each of two pipes 46 to be connected, wherein the outer surface of each first nut is provided with an external thread; step two, flanging the pipe orifices of the two pipe fittings by using a pipeline flanging tool, wherein the distance from the flanging 45 to the central axis of the pipe fittings is smaller than the distance from the external thread to the central axis of the first nut; step three, one of the pipe fittings is placed on the right side to be used as a right pipe, the left end of the right pipe is a flanging, and a first nut sleeved on the right pipe is used as a right nut 44; the other pipe fitting is placed on the left side to serve as a left pipe, the right end of the left pipe is a flanging, and a first nut sleeved on the left pipe is used as a left nut 43; step four, preparing a connecting nut 41, arranging an internal thread 42 matched with the external thread on the inner side wall of the connecting nut 41, and sleeving the connecting nut 41 outside the two first nuts; and step five, enabling the first nut and the connecting nut to move relatively until the two flanges are pressed together, so that the two pipe fittings are connected together. Preferably, the right nut and the left nut have opposite screw directions of the external screw thread, the inner side wall of the connecting nut is provided with an internal screw thread matched with the external screw thread, and the screw directions of the part of the internal screw thread on the left side and the part of the internal screw thread on the right side are opposite, so that when the connecting nut is screwed, the two first nuts are screwed in or out simultaneously.
The outer contour of the coupling nut is preferably hexagonal. Thereby facilitating screwing. The sum of the length values of the two first nuts is preferably greater than the length value of the coupling nut. The left end of the left nut is a clamping section, and the rest is a connecting section; the right end of the right nut is a clamping section, and the rest is a connecting section; the outer contour of the clamping section is in a hexagonal column shape, the external thread is positioned on the connecting section, and the length of the connecting section is not less than one half of the length of the connecting nut. One or two annular grooves are formed in the inner side wall of the first nut, and sealing rings are arranged in the annular grooves. Or one or two annular grooves are formed in the outer side wall of the pipe fitting, and sealing rings are arranged in the annular grooves. The distance from the sealing ring to the flanging is smaller than the length of the first nut.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. A pipeline flanging tool comprises a reaming device (1) and a clamping device (2), and is characterized in that the clamping device (2) is detachably and fixedly connected with the reaming device (1) and used for clamping a pipeline, and the reaming device (1) is connected to one side of the clamping device (2) and used for flaring and flanging the pipeline;
the hole expanding device (1) comprises a working shaft (3) and a working pipe (4), the working pipe (4) comprises a reset pipe (5), a rotating pipe (6) and a control pipe (7), the reset pipe (5), the rotating pipe (6) and the control pipe (7) are communicated and coaxially arranged and are sequentially in threaded connection, the working shaft (3) is arranged in the working pipe (4), one end of the working shaft protrudes out of the reset pipe (5), and is in threaded connection with an extrusion die (8) for flaring and flanging of a pipeline, the working shaft (3) is divided according to the position in the working pipe (4) and can be divided into a reset section (9), a rotating section (10) and a control section (11);
the working shaft (3) is in clearance sliding fit with the reset tube (5), the rotating tube (6) and the control tube (7) through a sliding shaft sleeve (12) and is coaxially arranged, limiting bosses (13) are arranged at two ends of the reset tube (5), internal threads (14) are arranged in the rotating tube (6), a control lever (15), a driven gear (16) and a plug (17) are arranged on the control tube (7), a limiting seat (18) is arranged on the reset section (9) and sleeved with a reset spring (19), two ends of the reset spring (19) are respectively abutted against the limiting seat (18) and the limiting bosses (13), external threads (20) are arranged on the outer wall of the rotating section (10), the external threads (20) are in threaded fit with the internal threads (14) in the rotating tube (6), and the control section (11) is rotatably connected with the rotating section (10) through a plane bearing (21), the outer wall of the control section (11) is provided with a plurality of tooth openings (22), the tooth openings (22) are annular, the tooth openings (22) are uniformly distributed at equal intervals along the axial direction of the control section (11), one end of the control lever (15) is provided with a handle (23), the other end of the control lever is fixedly connected with a driving gear (24), the outer wall of the control tube (7) is provided with a notch (25) communicated with the inner wall of the control tube, the driven gear (16) is rotatably arranged in the notch (25) and meshed with the tooth openings (22) outside the control section (11), and the driving gear (24) is hinged with the control tube (7) and meshed with the driven gear (16);
and the clamping device (2) is connected with the reaming device (1) through a screw rod and is positioned and fixed through a nut.
2. The pipeline flanging tool according to claim 1, wherein the clamping device (2) comprises a guide block (26) and two fastening heads (27), a pipeline hole (28) for a pipeline to pass through is formed in the middle of the guide block (26), the number of the fastening heads (27) is 2, and the fastening heads are symmetrically arranged at two ends of the pipeline hole (28).
3. The pipeline flanging tool according to claim 1, wherein the clamping device (2) comprises mounting panels (29), connecting blocks (30), clamping plates (31) and clamping plate control blocks (32), the number of the mounting panels (29) is 2, the mounting panels are symmetrically arranged, pipeline holes (28) for pipelines to pass through are formed in the middle of the mounting panels, the number of the connecting blocks (30) is 2, the connecting blocks are symmetrically arranged, and the connecting blocks are arranged among the 2 mounting panels (29);
the number of the clamping plates (31) is at least 2, the clamping plates (31) are rotatably connected between the mounting panels (29) through shaft rods (33), the clamping plates (31) are arc-shaped plate-shaped, two ends of each shaft rod (33) are fixedly connected with the mounting panels (29), and the clamping plates (31) are mounted between the connecting blocks (30) and are circumferentially and uniformly distributed around the pipeline holes (28);
the middle parts of the 2 connecting blocks (30) are respectively provided with a sliding chute (34), the sliding chutes (34) are arc-shaped and are symmetrically arranged, the clamping plate control blocks (32) are circular and are sleeved outside the clamping plates (31), the circular outer side surfaces of the clamping plate control blocks (32) are in sliding fit with the sliding chutes (34), the inner side surfaces of the clamping plate control blocks are provided with a plurality of extrusion flanges (35), and the extrusion flanges (35) correspond to the clamping plates (31) one by one and are extruded on the outer side surfaces of the clamping plates (31);
be arc platelike the medial surface and the lateral surface of splint (31) all are arc, and its width crescent, splint control block (32) are through spout (34) free rotation, and control extrusion flange (35) move at the lateral surface of splint (31), and then extrude splint (31), adjust splint (31) medial surface and pipeline hole (28) centraxonial distance, and then realize the centre gripping of pipeline.
4. The pipeline flanging tool according to claim 3, wherein two ends of the clamping plate (31) are connected with torsion springs, one ends of the torsion springs are fixedly connected with the clamping plate (31), and the other ends of the torsion springs are fixedly connected with the shaft rod (33) or the mounting panel (29); the clamping plate (31) moves away from the central axis of the pipeline hole (28) under the torsion action of the torsion spring.
5. The pipe flaring flanging tool according to claim 4, wherein a ratchet wheel (38) is fixedly arranged on the circular side face of the clamping plate control block (32), the ratchet wheel (38) and the clamping plate control block (32) are coaxially arranged, a pawl (39) is hinged to the connecting block (30), the pawl (39) is correspondingly matched with the clamping plate control block (32) to prevent the clamping plate control block (32) from reversing, and the pawl (39) is connected with a first spring (40) and is reset through the first spring (40).
And a rubber gasket (36) is adhered to the inner side surface of the clamping plate (31).
6. A method of quick connection of pipe fittings, characterized by:
step one, sleeving a first nut on each of two pipes to be connected, wherein the outer surface of the first nut is provided with an external thread;
secondly, flanging the pipe orifices of the two pipe fittings by using the pipe flanging tool disclosed by any one of claims 1-6, wherein the distance from the flanging to the central axis of the pipe fittings is less than the distance from the external threads to the central axis of the first nut;
placing one pipe fitting on the right side to serve as a right pipe, wherein the left end of the right pipe is a flanging, and a first nut sleeved on the right pipe is used as a right nut; the other pipe fitting is placed on the left side and used as a left pipe, the right end of the left pipe is a flanging, and a first nut sleeved on the left pipe is used as a left nut;
step four, preparing a connecting nut, wherein an internal thread matched with the external thread is arranged on the inner side wall of the connecting nut, and the connecting nut is sleeved outside the two first nuts;
and step five, enabling the first nut and the connecting nut to move relatively until the two flanges are pressed together, so that the two pipe fittings are connected together.
7. A method for quickly connecting pipe fittings according to claim 6, wherein the right nut and the left nut have external threads with opposite screw directions, and the connecting nut has internal threads on its inner side wall, which are engaged with the external threads, and the portions of the internal threads on the left side and the portions of the internal threads on the right side have opposite screw directions, so that the two first nuts are simultaneously screwed in and out when the connecting nut is screwed.
8. The method of claim 6, wherein the left end of the left nut is a clamping section and the rest is a connecting section; the right end of the right nut is a clamping section, and the rest of the right nut is a connecting section; the outer contour of the clamping section is hexagonal column-shaped, the external thread is positioned on the connecting section, and the length of the connecting section is not less than one half of the length of the connecting nut.
9. A method of quickly connecting tubular articles as claimed in claim 6, wherein said first nut has one or two annular grooves on its inside wall, and a sealing ring is arranged in said annular groove.
Or one or two annular grooves are formed in the outer side wall of the pipe fitting, and sealing rings are arranged in the annular grooves;
the distance between the sealing ring and the flanging is smaller than the length of the first nut.
CN202010620914.3A 2020-07-01 2020-07-01 Pipeline flanging tool and method for quickly connecting pipe fittings through tool Active CN112605200B (en)

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CN113369816A (en) * 2021-06-17 2021-09-10 高密天一机械科技有限公司 Production method of composite steel pipe with plastic-coated outer layer and stainless steel lining
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CN113369816A (en) * 2021-06-17 2021-09-10 高密天一机械科技有限公司 Production method of composite steel pipe with plastic-coated outer layer and stainless steel lining
CN113649484A (en) * 2021-07-26 2021-11-16 浙江飞越机电有限公司 Double-spring feeding reset structure of hydraulic pipe fitting machining tool conical head
CN113649484B (en) * 2021-07-26 2024-04-26 浙江飞越机电有限公司 Double-spring feeding reset structure of hydraulic pipe fitting processing tool bit
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