CN2809396Y - Screw thread type pipe joint - Google Patents
Screw thread type pipe joint Download PDFInfo
- Publication number
- CN2809396Y CN2809396Y CN 200520097262 CN200520097262U CN2809396Y CN 2809396 Y CN2809396 Y CN 2809396Y CN 200520097262 CN200520097262 CN 200520097262 CN 200520097262 U CN200520097262 U CN 200520097262U CN 2809396 Y CN2809396 Y CN 2809396Y
- Authority
- CN
- China
- Prior art keywords
- flange
- spiral shell
- diameter
- pull head
- pipe joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a screw thread type pipe joint. A connecting pipe of the rear side of a flange is sheathed with an outer screw pulling head, and the diameter of an outer screw thread on the outer screw pulling head is larger than the outer diameter of the flange. The connecting pipe of the rear side of the other flange is sheathed with a pulling nut, and the pulling nut near one side of the flange is provided with an inner screw thread which is engaged with the outer screw thread on the outer screw pulling head. A sealing ring is arranged between junction surfaces of two flanges. The junction point of two pipes is smooth and flat, and coaxiality is high so as to facilitate the operation of devices and parts in the pipe. The utility model is suitable for processing and connecting thin metal pipes, and the diameter of an outer ring of each of the flanges of the pipe joint is small. The utility model has the advantages of small volume for connecting elements, light weight, safety, high intensity, good sealing performance, good pressure resistance performance, low cost, simple installation, simple disassembly and fast construction, and is generally used for the connection of pre-buried pipelines in concrete construction and other various occasions.
Description
Affiliated technical field
The utility model relates to a kind of pipe joint, is meant the threaded pipe joint that a kind of metal tube is tightly connected particularly.
Background technique
At present, the Connecting format of metal tube has following several usually, and 1, welding; 2, tube end is burn-on and is connected with bolt behind the flange; 3, after making screw thread on the inside and outside hole of pipe, screw connection mutually; 4 will insert connection behind the expanding end of pipe; Behind the 5 tube ends welderings flange with the anchor ear connection etc.All there is such or such deficiency in above method in practice of construction is installed.Connect the purpose that thin walled tube is difficult to reach security seal as electric welding.Be subjected to certain limitation in (pipeline welding place is easily by arc through) and the construction, work efficiency is lower; Wear bolt again or with the anchor ear connection, except existing weld easily by the defective of arc through, also exist the connection part radial dimension big at pipe end weldering flange, concentricity is lower, the problem that sealing effect is relatively poor; On the inner and outer surface of pipe, make the mode of screw thread, connects comparatively reliably, but be difficult to making, the long difficulty that screws of pipeline for the thin walled tube screw thread.
In the construction, for stake, post or large-sized concrete basis, before concrete placement, often in the reinforcing bar cage, place the pipeline that some are used for wirerope or the use of concrete quality detection facility in advance, to this class pipeline, require connection part that good sealing property is arranged on the one hand, can not allow the concrete mortar enter pipe interior; Two pipelines that require to connect on the other hand are in same axle center and binding site is smooth smooth, can not hinder the operation of equipment in the pipe or device.And existing metal tube connect adopted will insert ways of connecting after the pipe end enlarging, the 1st, axial combination force is low, smashes center of percussion at concrete sometimes the phenomenon that canal float and pipe down break away from takes place.The 2nd, sealing effect is not good, and its pipe jointing position pressure-bearing is limited, is unsuitable for use in the concrete pile, post construction at the degree of depth dark (well depth is above 80 meters).The 3rd, a pipe is inserted another Guan Zhonghui in pipe, form interface, make binding site level and smooth inadequately, the operation of managing interior equipment or device there is certain influence sometimes.
Summary of the invention
The purpose of this utility model is to overcome the existing in prior technology deficiency, provides a kind of easy to connect, good seal performance, the smooth smooth threaded pipe joint of binding site in the pipe.
Technical solution of the present utility model is: threaded pipe joint, the end of two connecting tubes all is shaped on flange, on the connecting tube of a flange rear side, be with spiral shell pull head outside, the internal diameter of outer spiral shell pull head is less than flange outer diameter, external thread diameter on the outer spiral shell pull head is greater than flange outer diameter, be with a drawing nut on the connecting tube of another flange rear side, be provided with the internal thread that is meshed with outside thread on the outer spiral shell pull head near flange one side on the drawing nut, be provided with the seam of internal diameter away from flange one side on the drawing nut, between the junction plane of two flanges seal ring be housed less than flange outer diameter.
Outside thread on the outer spiral shell pull head of the utility model is the tapered tread that cone angle points to flange one side, and the top diameter of its tapered tread also is provided with the female cone screw thread that is meshed with it greater than flange outer diameter on the drawing nut.
The utility model is provided with external diameter greater than externally threaded step away from flange one side on the spiral shell pull head outside, and the outer cylinder surface of this step is provided with annular knurl.
The utility model can also be provided with the draw-in groove that can place seal ring by seam one side in drawing nut screw, the outer cylinder surface of drawing nut is provided with annular knurl.
The beneficial effects of the utility model are: 1, binding site at two connecting tubes adopts flange to add seal ring also with the Connecting format of internal and external threads, and the coaxality height of its connecting tube is leveled up, compressed by seal ring between two pipes, its junction is smooth smooth, the operation of equipment and device in being convenient to manage; 2, the processing that is suitable for thin metal pipe be connected, can adopt special-purpose machinery that the end flange of connecting tube is made flange, its flange coaxality height, race diameter can be less.Then can welded flange for thick walled tube; 3, the volume of connector element is little, in light weight, be threaded safe and reliable, intensity is high, the sealing and good pressure-resistant performance, fabricating cost is lower; 4, install, dismounting is easy, easy construction, quick.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the stack mounting schematic representation of Fig. 1
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail
Referring to Fig. 1, Fig. 2, threaded pipe joint be by connecting tube 1,5, drawing nut 2, and seal ring 3, outer spiral shell pull head 4 is formed.Be manufactured with flange 11 in the end of connecting tube 1, flange 11 is to be shaped by mechanical flanger, is with a drawing nut 2 on the connecting tube 1 of flange 11 rear sides.On the connecting tube 5 of flange 51 rear sides, be with spiral shell pull head 4 outside.The internal diameter of outer spiral shell pull head 4 is less than flange 51 external diameters, and the external thread diameter on the outer spiral shell pull head 4 is greater than flange 51 external diameters.Be provided with the internal thread that is meshed with outside thread on the outer spiral shell pull head 4 near flange 11 1 sides on the drawing nut 2, be provided with between the junction plane of internal diameter less than seam 22, two flanges 11,51 of flange 11 external diameters away from flange 11 1 sides on the drawing nut 2 seal ring 3 is housed.Generally speaking, the internal diameter of seam 22 all is slightly larger than the external diameter of connecting tube 5 and connecting tube 1 on the internal diameter of outside thread pull head 4 and the drawing nut 2, and forming is slidingly matched gets final product.Should be earlier before processing flange 11 be inserted in a drawing nut 2 and seal ring 3 at an end of connecting tube 1, the other end is inserted in an outer spiral shell pull head 4 (overlap fashionable should note it is shaped on screw thread one side towards flange 11), forming an end on connecting tube 1 is female adapter, and the other end is the linkage structure of male connection.
After producing flange on flange 51, two connecting tubes and machine in the end of connecting tube 5 after the same method, with the outer spiral shell pull head 4 corresponding installations on the drawing nut 2 on the connecting tube 1 and the connecting tube 5.Also can respectively be inserted in a drawing nut 2 and seal ring 3 at the two end part of connecting tube 1, respectively be inserted in spiral shell pull head 4 outside at the two end part of connecting tube 5, make one group of connecting tube 5 that one group of connecting tube 1 that two ends are female adapter and two ends are male connection, during use with two groups of connecting tube connecting tubes 1 and connecting tube 5 mutually butt joint install.
Outside thread on the outer spiral shell pull head 4 is common flat thread, also can be the tapered tread that cone angle points to flange one side, and the top diameter of its tapered tread also is provided with the female cone screw thread that is meshed with it greater than flange 51 external diameters on the drawing nut 2.Its sealability of this worm structure is more better, but makes also complicated slightly.
Be provided with external diameter greater than externally threaded step 41 away from flange 51 1 sides on the spiral shell pull head 4 outside, the outer cylinder surface of this step 41 is provided with annular knurl, the hand holding part position when making this surface become outer spiral shell pull head 4 to screw with drawing nut 2.
Be provided with the draw-in groove 21 that can place seal ring 3 by seam 22 1 sides in drawing nut 2 screws, drawing nut 2 outer cylinder surfaces are provided with annular knurl, so that drawing nut 2 screws with outer spiral shell pull head 4.
Installation steps: get two pipes that will connect 1,5, drawing nut 2 one ends will be arranged and have outer spiral shell pull head 4 one ends staggered relatively, seal ring 3 is put into the draw-in groove 21 of drawing nut 2 screws, two pipes are drawn close mutually, the axle center alignment, the drawing nut 2 that will be enclosed within on two pipes with hand screws mutually with outer spiral shell pull head 4, until screwing, promptly installs.During dismounting, only need counterrotating drawing nut 3 to get final product.Through test, 50 millimeters of diameters, use the threaded pipe joint structure on the A3 steel pipe that wall thickness is 1 millimeter, its outside bearing strength greater than the 6-8 MPa/centimetre
2, can in concrete pile, the post of well depth 100-200 rice are constructed, use.
Claims (4)
1. threaded pipe joint, the end of two connecting tubes all is shaped on flange, it is characterized in that: on the connecting tube (5) of a flange (51) rear side, be with spiral shell pull head (4) outside, the internal diameter of outer spiral shell pull head (4) is less than flange (51) external diameter, external thread diameter on the outer spiral shell pull head (4) is greater than flange (51) external diameter, be with a drawing nut (2) on the connecting tube (1) of another flange (11) rear side, drawing nut (2) upward is provided with outer spiral shell pull head (4) near flange (11) one sides and goes up the internal thread that outside thread is meshed, drawing nut (2) is gone up and is provided with the seam (22) of internal diameter less than flange (11) external diameter, two flanges (51) away from flange (11) one sides, seal ring (3) is housed between the junction plane (11).
2. threaded pipe joint according to claim 1, it is characterized in that: the outside thread on the outer spiral shell pull head (4) is the tapered tread that cone angle points to flange (5) one sides, the top diameter of its tapered tread also is provided with the female cone screw thread that is meshed with it greater than flange (51) external diameter on the drawing nut (2).
3. threaded pipe joint according to claim 1 and 2 is characterized in that: spiral shell pull head (4) is gone up and is provided with external diameter greater than externally threaded step (41) away from flange (51) one sides outside, and the outer cylinder surface of this step (41) is provided with annular knurl.
4. threaded pipe joint according to claim 1 and 2 is characterized in that: be provided with the draw-in groove (21) that can place seal ring (3) by seam (22) one sides in drawing nut (2) screw, the outer cylinder surface of drawing nut (2) is provided with annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097262 CN2809396Y (en) | 2005-07-22 | 2005-07-22 | Screw thread type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097262 CN2809396Y (en) | 2005-07-22 | 2005-07-22 | Screw thread type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809396Y true CN2809396Y (en) | 2006-08-23 |
Family
ID=36925581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520097262 Expired - Fee Related CN2809396Y (en) | 2005-07-22 | 2005-07-22 | Screw thread type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809396Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383601A (en) * | 2011-08-24 | 2012-03-21 | 中国葛洲坝集团股份有限公司 | Method and device for leading pre-embedded pipes in concrete out of side wall joints |
-
2005
- 2005-07-22 CN CN 200520097262 patent/CN2809396Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383601A (en) * | 2011-08-24 | 2012-03-21 | 中国葛洲坝集团股份有限公司 | Method and device for leading pre-embedded pipes in concrete out of side wall joints |
| CN102383601B (en) * | 2011-08-24 | 2013-12-04 | 中国葛洲坝集团股份有限公司 | Method and device for leading pre-embedded pipes in concrete out of side wall joints |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2830851Y (en) | Telescopic union joint | |
| CN2793505Y (en) | Fast repairing joint without water interruption of PE water feeding pipe | |
| CN2809396Y (en) | Screw thread type pipe joint | |
| CN212361154U (en) | Detachable reducer union | |
| CN2818986Y (en) | Snatched claw pipe connector | |
| CN201130168Y (en) | Ultrasound wave detecting tube | |
| CN200996508Y (en) | Shielding-sleeve threaded connecter | |
| CN200950104Y (en) | Tube blanking adapter for oil sleeve explosive experiment | |
| CN2895630Y (en) | Steel pipe connection structure | |
| CN202302412U (en) | Pressure-bearing and sealing pipeline for pipe connector | |
| CN201665909U (en) | Large-caliber plastic tube all-in-one inspection well | |
| CN1126892C (en) | Expansion shaped insertion-type steel tubes for both flexible and rigid joining and its manufacture technology | |
| CN1260503C (en) | Construction technology of relay jacking for glass fiber reinforced plastics sand-inclusion pipe-jacking and apparatus of device thereof | |
| CN200961763Y (en) | Quick adaptor of liquid pipeline | |
| CN202419008U (en) | Electro-fused bellows joint | |
| CN205639993U (en) | Divide manifold | |
| CN101392858A (en) | Steel oil pipe edge-breaking flange | |
| CN201288906Y (en) | Steel oil pipe opening flange code | |
| CN200946727Y (en) | Push-insert-press tight type connecting tube and pipe adaptor | |
| CN204187188U (en) | One can coiling reinforced composite pipe assembly | |
| CN207454984U (en) | A kind of slide-in type bellmouth pipe fitting | |
| CN2620158Y (en) | Connecting structure for plastic pipes | |
| CN201462253U (en) | Plug bush clamping pressure self sealing acoustic pipe and pipe joint | |
| CN201372446Y (en) | Voice test pipe | |
| CN217899127U (en) | Quick detach formula concrete pipe coupling assembling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20120722 |