TWI393625B - Pipe connection device - Google Patents
Pipe connection device Download PDFInfo
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- TWI393625B TWI393625B TW098141310A TW98141310A TWI393625B TW I393625 B TWI393625 B TW I393625B TW 098141310 A TW098141310 A TW 098141310A TW 98141310 A TW98141310 A TW 98141310A TW I393625 B TWI393625 B TW I393625B
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Description
本發明關於一種由合成樹脂管、擴徑工具和管接頭構成的管連接裝置,該合成樹脂管的管端部的內外徑在通過外力強制地擴徑之後,該管端部會自然縮徑。該擴徑工具強制地擴徑可自然縮徑的所述合成樹脂管的管端部的內外徑,該管接頭連接所述擴徑後的合成樹脂管的管端部。The present invention relates to a pipe connecting device comprising a synthetic resin pipe, a diameter expanding tool and a pipe joint. After the inner and outer diameters of the pipe end portion of the synthetic resin pipe are forcibly expanded by an external force, the pipe end portion is naturally reduced in diameter. The expanding tool forcibly expands the inner and outer diameters of the pipe end portion of the synthetic resin pipe which can be naturally reduced in diameter, and the pipe joint connects the pipe end portion of the expanded synthetic resin pipe.
作為上述管接頭和合成樹脂管,在專利文獻1、專利文獻2、利文獻3、專利文獻6和專利文獻8中有過記載,作為上述擴徑工具,在專利文獻5和專利文獻7中有過記載,此外,作為為了連接構成管接頭的接頭主體和移動套筒,使其從離開狀態向接觸狀態移動的連接工具,在專利文獻4中有過記載。The above-mentioned pipe joints and synthetic resin pipes are described in Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 6, and Patent Document 8. As the above-described diameter expanding tool, Patent Document 5 and Patent Document 7 have In addition, as a connecting tool for moving the joint main body and the moving sleeve constituting the pipe joint from the separated state to the contact state, it is described in Patent Document 4.
但是,在將管端部外插到管接頭的內插筒部上的情況下,將管端部擴徑使其比該內插筒部的外徑足夠大,外插時插入容易。但是,在專利文獻1至8中皆未如此種擴徑之相關記載。However, when the tube end portion is externally inserted into the inner tube portion of the pipe joint, the pipe end portion is expanded to be larger than the outer diameter of the inner tube portion, and the insertion is easy at the time of insertion. However, in Patent Documents 1 to 8, there is no such description as to expand the diameter.
即使當將管端部擴徑使其比該內插筒部的外徑足夠大的情形下進行外插時,出現了如何使管端部中心和內插筒部中心一致的問題,當一直等到自然縮徑的管端部的內徑接近內插筒部的外徑時,雖然同心性的問題得以解決,但是,需要等待時間使作業效率變低。Even when the pipe end is expanded to be extrapolated larger than the outer diameter of the inner insert portion, there arises a problem of how to make the center of the pipe end coincide with the center of the inner insert portion, and wait until When the inner diameter of the pipe end portion of the naturally reduced diameter is close to the outer diameter of the inner cylindrical portion, although the problem of concentricity is solved, it takes a waiting time to lower the work efficiency.
另一方面,將管端部擴徑成與內插筒部的外徑同等程度之後,雖然有外插方法,但是,在該情況下,因為當進一步縮徑時不易插入,所以,出現了必須匆忙地作業的問題。On the other hand, after the pipe end portion is expanded to the same extent as the outer diameter of the interposing cylinder portion, although there is an extrapolation method, in this case, since it is difficult to insert when the diameter is further reduced, it is necessary to The problem of rushing homework.
上述相關之專利文獻係如下列所示:The above related patent documents are as follows:
專利文獻1:日本特開2000-2384號公報(圖4)。Patent Document 1: Japanese Laid-Open Patent Publication No. 2000-2384 (Fig. 4).
專利文獻2:日本特開平11-230453號公報(圖1)。Patent Document 2: Japanese Laid-Open Patent Publication No. Hei 11-230453 (Fig. 1).
專利文獻3:日本特開2000-220779號公報(圖1)。Patent Document 3: Japanese Laid-Open Patent Publication No. 2000-220779 (Fig. 1).
專利文獻4:日本特開2000-263462號公報(圖1)。Patent Document 4: Japanese Laid-Open Patent Publication No. 2000-263462 (FIG. 1).
專利文獻5:日本特開2000-37773號公報(圖18)。Patent Document 5: Japanese Laid-Open Patent Publication No. 2000-37773 (Fig. 18).
專利文獻6:日本特開2002-349779號公報(圖4)。Patent Document 6: Japanese Laid-Open Patent Publication No. 2002-349779 (Fig. 4).
專利文獻7:日本特開2003-25430號公報(圖2)。Patent Document 7: Japanese Laid-Open Patent Publication No. 2003-25430 (FIG. 2).
專利文獻8:日本特開2006-336707號公報(圖5)。Patent Document 8: Japanese Laid-Open Patent Publication No. 2006-336707 (Fig. 5).
本發明是為了改進上述問題而作出的,其解決的課題是提供一種可以將擴徑後的合成樹脂管的管端部無阻力地外插到管接頭的內插筒部上,而且,在保持擴徑後的管端部和內插筒部的兩中心一致的狀態下,可以連接合成樹脂管,作業效率高的管連接裝置。The present invention has been made to solve the above problems, and an object of the present invention is to provide an end portion of a pipe joint of a synthetic resin pipe which has been expanded in diameter to be inserted into a pipe portion of a pipe joint without any resistance, and is maintained In a state in which the tube end portion after the diameter expansion and the center of the insertion tube portion are aligned, a synthetic resin tube can be connected, and a tube connection device having high work efficiency can be connected.
本發明的管連接裝置由合成樹脂管、擴徑工具和管接頭構成;該合成樹脂管的管端部的內外徑在通過外力強制地擴徑之後,該管端部自然縮徑,該擴徑工具強制地擴徑可自然縮徑的所述合成樹脂管的管端部的內外徑,該管接頭連接所述擴徑後的合成樹脂管的管端部。The pipe connecting device of the present invention is composed of a synthetic resin pipe, a diameter expanding tool and a pipe joint; after the inner and outer diameters of the pipe end portion of the synthetic resin pipe are forcibly expanded by an external force, the pipe end portion is naturally reduced in diameter, and the diameter is expanded. The tool forcibly expands the inner and outer diameters of the pipe end portion of the synthetic resin pipe which can be naturally reduced in diameter, and the pipe joint connects the pipe end portion of the expanded synthetic resin pipe.
所述管接頭包括內插筒部和移動套筒,該內插筒部具有比所述合成樹脂管的無擴徑管的內徑大的外徑,且被外插到通過擴徑工具擴徑後的管端部上,該移動套筒為了將所述外插於內插筒部上的管端部夾持在該內插筒部之間,沿該合成樹脂管從外插於無擴徑部分的合成樹脂管的位置滑行移動到設置在該內插筒部的外側位置。The pipe joint includes an inner cylindrical portion and a moving sleeve, the inner cylindrical portion having an outer diameter larger than an inner diameter of the non-expanding tube of the synthetic resin pipe, and being externally inserted to expand the diameter by the expanding tool In the rear end portion of the tube, the moving sleeve is inserted between the insertion tube portion in order to sandwich the tube end portion which is externally inserted into the insertion tube portion, and the synthetic resin tube is externally inserted into the non-expanded diameter The position of the portion of the synthetic resin tube is slidably moved to an outer position provided at the inner cylindrical portion.
所述擴徑工具構成為以所述管端部的軸向的所有內徑,比所述內插筒部的外徑大的方式進行擴徑,所述合成樹脂管構成為在由所述擴徑工具進行擴徑後不久的一定時間內,以能夠將該管端部無阻力地外插到所述內插筒部上的方式自然縮徑。The diameter expanding tool is configured to expand the diameter so that all inner diameters in the axial direction of the tube end portion are larger than an outer diameter of the insertion tube portion, and the synthetic resin tube is configured to be expanded by the expansion In a certain period of time after the diameter tool is expanded, the diameter of the tube can be naturally reduced by inserting the end portion of the tube into the inner tube portion without resistance.
所述管接頭還包括導向部,導向部定位該管端部的外插狀態,無阻力可移動地插入於所述內插筒部外側的擴徑後不久的管端部在通過自然縮徑直至與該內插筒部緊密接合的期間,為了使該擴徑狀態的管端部的中心和該內插筒部的中心處於一致的狀態下,能夠通過所述移動套筒的移動進行夾持,配置在可移動地插入於所述內插筒部的外側的處於擴徑狀態的管端部的前端側的外周緣。The pipe joint further includes a guiding portion that positions the outer end state of the pipe end portion, and the pipe end portion that is inserted into the outer side of the inner diameter of the inner casing During the period in which the inner tube portion is in close contact with each other, the center of the tube end portion in the expanded diameter state and the center of the inner tube portion are in a state of being aligned, so that the movement can be performed by the movement of the moving sleeve. The outer peripheral edge of the distal end side of the tube end portion that is movably inserted into the outer side of the insertion tube portion in the expanded diameter state.
所以,可以將擴徑後的合成樹脂管的管端部無阻力地外插到管接頭的內插筒部上,而且,在保持擴徑後的管端部和內插筒部的兩中心一致的狀態下可以連接合成樹脂管,能夠提高作業效率。Therefore, the tube end portion of the expanded synthetic resin tube can be externally inserted into the inner tube portion of the pipe joint without resistance, and the tube end portion of the expanded diameter tube and the center of the inner tube portion can be aligned. The synthetic resin tube can be connected in a state where the work efficiency can be improved.
此外,本發明的管連接裝置,因為在管端部通過導向部定位之後的狀態下,以縮徑後的所述管端部的內周接觸內插筒部的外周的方式來構成,所以,通過在管端部的軸向前後的外周和內周,來確保與內插筒部的同心性,進而提高同心性。Further, the pipe connecting device of the present invention is configured such that the inner circumference of the pipe end portion after the diameter reduction contacts the outer circumference of the inner tube portion in a state in which the pipe end portion is positioned by the guide portion. Concentricity with the insertion tube portion is ensured by the outer circumference and the inner circumference of the tube end portion in the axial direction, and the concentricity is further improved.
本發明的管連接裝置的效果如上述手段所記載。The effects of the pipe connecting device of the present invention are as described above.
以下,參照附圖對本發明的實施例進行說明。Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
圖1為表示本發明的管接頭一實施例的接頭主體。(a)為其俯視圖、(b)為其二分之一的剖面主視圖、(c)為其仰視圖、(d)為其內插筒部的放大AA剖面圖、(e)為其內插筒部的放大主視圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a joint main body of an embodiment of a pipe joint of the present invention. (a) a plan view thereof, (b) a cross-sectional front view of one-half thereof, (c) a bottom view thereof, (d) an enlarged AA cross-sectional view of the inner tube portion thereof, and (e) an inner view thereof. An enlarged front view of the insert section.
該接頭主體5具有比合成樹脂管1的無擴徑管的內徑D1大的外徑D3,包括被通過擴徑工具擴徑後的管端部1a外插的內插筒部2、定位管端部1a的外插狀態的導向部3、收容連接完成時的合成樹脂管的殘餘厚度的殘餘厚度收容部4和不連接合成樹脂管1側的各種部件5a-5d。這些構成一體化,並以金屬(優選黃銅或者不銹鋼,但並不局限於這些材料)或者合成樹脂(優選在聚苯硫醚(PPS)添加熱縮性彈性材料(TPE),但並不局限於這些材料)為原材料。The joint main body 5 has an outer diameter D3 larger than the inner diameter D1 of the non-expanding tube of the synthetic resin pipe 1, and includes an inner cylindrical portion 2 and a positioning pipe which are externally inserted by the pipe end portion 1a which is expanded by the diameter expanding tool. The guide portion 3 in the externally inserted state of the end portion 1a, the residual thickness accommodating portion 4 for accommodating the residual thickness of the synthetic resin tube at the time of completion of the connection, and the various members 5a to 5d on the side of the synthetic resin tube 1 are not connected. These are integrated and are made of metal (preferably brass or stainless steel, but not limited to these materials) or synthetic resin (preferably in polyphenylene sulfide (PPS) with heat-shrinkable elastic material (TPE), but not inconsistent Limited to these materials) as raw materials.
合成樹脂管1其管端部1a的內外徑在通過外力強制地擴徑之後,該管端部1a自然縮徑,根據規格等具有各種內外徑和各種原材料的合成樹脂管1。但是,本文中列舉的為一般稱作交聯聚乙烯管,無擴徑狀態下的外徑D5為27.3mm、厚度為4.2mm、內徑D0為18.9mm,原材料為交聯聚乙烯。In the synthetic resin pipe 1, after the inner and outer diameters of the pipe end portion 1a are forcibly expanded by an external force, the pipe end portion 1a is naturally reduced in diameter, and the synthetic resin pipe 1 having various inner and outer diameters and various raw materials according to specifications and the like. However, as exemplified herein, it is generally referred to as a crosslinked polyethylene pipe, and the outer diameter D5 in the non-expanded state is 27.3 mm, the thickness is 4.2 mm, and the inner diameter D0 is 18.9 mm. The raw material is crosslinked polyethylene.
合成樹脂管1的構成還通過下述的擴徑工具20(圖3)將管端部1a的軸向的所有內徑以比內插筒部2的外徑D3大的直徑(最大擴徑部分的長度H)的方式進行擴徑,在通過擴徑工具20擴徑後不久的一定時間內,以能夠將管徑部1a無阻力地外插到內插筒部2上的方式進行自然縮徑。The configuration of the synthetic resin pipe 1 is also such that the diameter of all the inner diameters of the pipe end portion 1a is larger than the outer diameter D3 of the inner cylindrical portion 2 by the diameter expanding tool 20 (Fig. 3) described below (maximum diameter expansion portion) In the length H), the diameter is increased, and the diameter of the diameter-reducing tool 20 is expanded to the depth of the diameter of the diameter-expanding tool 20, and the diameter-diameter portion 1a can be externally inserted into the insertion tube portion 2 without any resistance. .
內插筒部2為筒狀體,包括構成其最大外徑D3的多個內插凸部2a、比該內插凸部2a小的外徑D2的內插凹部2b、具有比合成樹脂管1的無擴徑管的內徑D0的規定內徑大的內徑D1的內插筒的內周部2c。The interposing cylinder portion 2 is a cylindrical body, and includes a plurality of interposing convex portions 2a constituting a maximum outer diameter D3 thereof, an interpolating concave portion 2b having an outer diameter D2 smaller than the interpolating convex portion 2a, and a synthetic resin tube 1 The inner peripheral portion 2c of the inner tube of the inner diameter D1 having a predetermined inner diameter of the inner diameter D0 of the non-expansion tube.
內插凸部2a的最前端部分比其他位於更深處的內插凸部2a寬,為了更順利地接納正在自然縮徑的管端部1a對其前端周緣進行了倒角加工。內插凹部2b的外徑D2比無擴徑的合成樹脂管1的內徑D0大,最終如下所述擴徑後自然縮徑的管端部1a為無間隙接觸連接。The foremost end portion of the insertion convex portion 2a is wider than the other insertion convex portions 2a located deeper, and the front end periphery of the tube end portion 1a which is being naturally reduced in diameter is chamfered more smoothly. The outer diameter D2 of the interpolating concave portion 2b is larger than the inner diameter D0 of the synthetic resin tube 1 having no expanded diameter, and finally the tube end portion 1a which is naturally reduced in diameter after expanding the diameter as described below is a gapless contact connection.
在圖1(e)中,管端部1a在通過導向部3定位之後的狀態下,以縮徑後的管端部1a的內周接觸內插筒部2的前端的內插凸部2a的外周的方式來構成。此時,該部分的管端部1a的內徑D3和內插凸部2a的外徑D3一致。但是,在靠近開口側的部分,縮徑還沒有很大進展,縮徑後的管端部1a的內徑和開口側的內插凸部2a的外周之間存在空隙。In Fig. 1(e), in a state in which the tube end portion 1a is positioned by the guide portion 3, the inner circumference of the tube end portion 1a having the reduced diameter contacts the insertion projection portion 2a of the front end of the insertion tube portion 2 The way to the outside is to form. At this time, the inner diameter D3 of the tube end portion 1a of this portion coincides with the outer diameter D3 of the interpolation convex portion 2a. However, in the portion close to the opening side, the diameter reduction has not progressed much, and there is a gap between the inner diameter of the reduced diameter pipe end portion 1a and the outer circumference of the insertion convex portion 2a on the opening side.
另一方面,在該圖1(e)的狀態中,擴徑後自然縮徑的管端部1a的外徑D6和導向部3的內徑D6一致,通過該導向部3使在該擴經狀態下的管端部1a的中心和內插筒部2的中心處於一致的狀態。即在圖1(e)的狀態中,通過內插筒部2和導向部3的雙方,使在該擴徑狀態的管端部1a的中心和內插筒部2的中心處於一致的狀態,雙方因為軸一致而處於平行狀態。On the other hand, in the state of Fig. 1(e), the outer diameter D6 of the pipe end portion 1a which is naturally reduced in diameter after expansion and the inner diameter D6 of the guide portion 3 coincide with each other, and the expansion portion 3 is made by the guide portion 3 The center of the pipe end portion 1a in the state and the center of the inner insertion tube portion 2 are in a state of being uniform. In other words, in the state of FIG. 1(e), both the center of the pipe end portion 1a in the expanded diameter state and the center of the inner insertion tube portion 2 are in a state of being aligned by both the inner tube portion 2 and the guide portion 3. Both sides are in parallel because of the axis.
導向部3從和內插筒部2相同的基端部分延伸出,且以4等分圓周的部分突起來形成,即以作為管端部1a的前端側外周的周緣的方式來配置,包括為該突起內表面的導向部內表面3a和作為該突起內表面的裏端的導向部裏端3b。此外,導向部3的突起之間為用於確認管端部1a定位後狀態的定位確認凹口3c。The guide portion 3 is formed to extend from the same base end portion as the inner insertion tube portion 2, and is formed by a portion of a quadrant that is equally divided into four, that is, as a peripheral edge of the distal end side of the tube end portion 1a, including The guide inner surface 3a of the inner surface of the protrusion and the inner end 3b of the guide portion which is the inner end of the inner surface of the protrusion. Further, between the projections of the guide portion 3 is a positioning confirmation recess 3c for confirming the state in which the pipe end portion 1a is positioned.
導向部3的突起的高度H1,即從導向部裏端3b至導向部內表面3a的前端部分的長度H1為從該導向部裏端3b至內插筒部2的前端最大徑部分的管端插入長度H的1/3至1/4左右的短尺寸。另外,將導向部3的外徑設為導向部的外徑D7。The height H1 of the projection of the guide portion 3, that is, the length H1 from the inner end 3b of the guide portion to the front end portion of the inner surface 3a of the guide portion is the end of the pipe end from the inner end 3b of the guide portion to the maximum diameter portion of the front end portion of the inner tube portion 2. A short dimension of about 1/3 to 1/4 of the length H. Further, the outer diameter of the guide portion 3 is defined as the outer diameter D7 of the guide portion.
這樣構成的導向部3構成為在擴徑後自然縮徑的管端部1a正好為與該導向部內表面3a的內徑D6相對應的外徑時,因為該處於擴經狀態的管端部1a的內徑比內插筒部2的外徑D3大,而且,為短尺寸,所以,使該處於擴徑狀態的管端部1a的外徑沿導向部內表面3a,僅少量插入,管端部1a的端面與導向部裏端3b接觸,定位管端部1a的外插狀態。The guide portion 3 thus configured is configured such that the tube end portion 1a which is naturally reduced in diameter after the diameter expansion is exactly the outer diameter corresponding to the inner diameter D6 of the inner surface 3a of the guide portion, because the tube end portion 1a in the expanded state The inner diameter is larger than the outer diameter D3 of the inner tube portion 2, and is short. Therefore, the outer diameter of the tube end portion 1a in the expanded diameter state is inserted only along the inner surface 3a of the guide portion, and the tube end portion is inserted. The end face of 1a is in contact with the inner end 3b of the guide portion, and the outer end of the pipe end portion 1a is positioned.
圖1(e)從上述定位狀態,縮徑從管端部1a的裏側更快地進展,如上所述,表示縮徑後的管端部1a的內周直至接觸到內插筒部2的前端的內插凸部2a的外周的狀態。1(e), from the above-described positioning state, the diameter reduction progresses faster from the inner side of the pipe end portion 1a, and as described above, the inner circumference of the pipe end portion 1a after the diameter reduction is reached until the front end of the inner tube portion 2 is contacted. The state of the outer circumference of the convex portion 2a is inserted.
殘餘厚度收容部4其內周側為與內插筒部2的內插凹部2b相同外徑D2,其外周側在管端部1a連接完成後,管端部1a的外徑處於外插於內插筒部2的狀態下,縮徑至最小直徑,並在如下所述移動套筒6(圖2)的端面接觸導向部3的端面之後的情況下,為收容產生的殘餘厚度的內徑D4的環狀凹處。The remaining thickness accommodating portion 4 has the same outer diameter D2 as the interpolating concave portion 2b of the interposing cylinder portion 2, and the outer peripheral side of the tube end portion 1a is externally inserted, and the outer diameter of the tube end portion 1a is externally inserted. In the state of the insertion tube portion 2, the diameter is reduced to the minimum diameter, and in the case where the end surface of the moving sleeve 6 (Fig. 2) contacts the end surface of the guide portion 3 as follows, the inner diameter D4 of the residual thickness generated for accommodation is accommodated. Annular recess.
中間部5a為了將用於連接合成樹脂管1的上述內插筒部2、導向部3、殘餘厚度收容部4一體化後的部分連接到其他的連接物件上,用於連接下面將說明的六角部5b、連接螺紋部5c、主體內周部5d。The intermediate portion 5a is connected to other connected objects in order to connect the above-described interposing cylinder portion 2, the guide portion 3, and the residual thickness accommodating portion 4 for connecting the synthetic resin pipe 1, for connecting the hexagonal body to be described below. The portion 5b, the connecting screw portion 5c, and the main body inner peripheral portion 5d.
六角部5b為用於將該管接頭5通過螺紋緊固到連接物件的扳手作用的部分,連接螺紋部5c為通過螺紋緊固連接物件的內螺紋孔中的部分,主體內周部5d與內插筒部2的內插筒的內周部2c通過同軸連通。The hexagonal portion 5b is a portion for screwing the pipe joint 5 to the connecting member by screwing, and the connecting screw portion 5c is a portion of the internally threaded hole that connects the article by screwing, the inner peripheral portion 5d and the inner portion of the body The inner peripheral portion 2c of the inner insertion cylinder of the insertion tube portion 2 is coaxially communicated.
主體內周部5d的內徑比內插筒部的內周部2c的內徑大,以便不會成為通過內插筒的內周部2c的流體的通過障礙。The inner diameter of the main body inner peripheral portion 5d is larger than the inner diameter of the inner peripheral portion 2c of the inner tube portion so as not to pass through the fluid passing through the inner peripheral portion 2c of the inner tube.
在接頭主體5的不連接合成樹脂管1側,用於將該合成樹脂管1連接到連接物件的上述中間部5a、六角部5b、連接螺紋部5c和主體內周部5d總稱為主體側連接部5f。On the side of the joint main body 5 where the synthetic resin pipe 1 is not connected, the intermediate portion 5a for connecting the synthetic resin pipe 1 to the joined article, the hexagonal portion 5b, the connecting screw portion 5c, and the main body inner peripheral portion 5d are collectively referred to as a main body side connection. Department 5f.
圖2為表示與接頭主體組合來構成管接頭的移動套筒。(a)為其二分之一的剖面主視圖、(b)為其側視圖、(c)為內插於其移動套筒的定位環的縱剖面圖、(d)為(c)的一部分的放大側視圖。Fig. 2 is a view showing a moving sleeve which is combined with a joint main body to constitute a pipe joint. (a) a cross-sectional front view of one-half thereof, (b) a side view thereof, (c) a longitudinal sectional view of a positioning ring interposed in the moving sleeve thereof, and (d) a part of (c) Magnified side view.
該移動套筒6為了將外插於接頭主體5的內插筒部2上的管端部1a夾持在該內插筒部2之間,沿該合成樹脂管1從外插於無擴徑部分的合成樹脂管1的位置滑行移動到設置在該內插筒部2的外側位置,整體為筒狀物,原材料為金屬,特別優選黃銅,但並不局限於該材料。The moving sleeve 6 is inserted between the insertion tube portion 2 for inserting the tube end portion 1a which is externally inserted into the insertion tube portion 2 of the joint main body 5, and is inserted from the synthetic resin tube 1 to the non-expanded diameter. A portion of the synthetic resin tube 1 is slidably moved to a position outside the insertion tube portion 2, and is entirely cylindrical, and the material is metal, and brass is particularly preferable, but is not limited to the material.
移動套筒6的外徑D7與在連接時為接觸的物件的接頭主體5的導向部3的外徑D7相同。這是因為在連接時無須特別在這兩者之間設置臺階差,外徑相同而外觀美觀,兩者的外徑也不一定必須相同。The outer diameter D7 of the moving sleeve 6 is the same as the outer diameter D7 of the guide portion 3 of the joint main body 5 of the article that is in contact at the time of connection. This is because it is not necessary to provide a step difference between the two in connection, the outer diameter is the same, and the appearance is beautiful, and the outer diameters of the two are not necessarily the same.
移動套筒6的套筒內周部6a的內徑D8比無擴徑的合成樹脂管1的外徑D5略大,比接頭主體5的導向部3的內徑D6小,比內插筒部2的最大外徑D3大,此外,外插於內插筒部2上,且以最大限度地比縮徑後的管端部1a的外徑小的方式來構成。The inner diameter D8 of the sleeve inner peripheral portion 6a of the moving sleeve 6 is slightly larger than the outer diameter D5 of the non-expanded synthetic resin tube 1, and is smaller than the inner diameter D6 of the guide portion 3 of the joint main body 5, and is smaller than the inner cylindrical portion. The maximum outer diameter D3 of 2 is large, and is externally inserted into the inner tube portion 2, and is configured to be smaller than the outer diameter of the tube end portion 1a after the diameter reduction.
在與移動套筒6的、處於外插于合成樹脂管1的狀態擴徑後的管端部1a先接觸側,設有傾斜開口部6c,與管端部1a的擴徑開始部分以及擴徑部分的加壓接觸變得圓滑。An inclined opening portion 6c is provided on the side closer to the pipe end portion 1a of the moving sleeve 6 which is expanded in the state of being inserted into the synthetic resin pipe 1, and the diameter expansion start portion and the diameter expansion of the pipe end portion 1a are provided. Part of the pressurized contact becomes smooth.
在移動套筒6的、從與傾斜開口部6c相反側的端部規定距離的內周部分中,設有環狀收容槽6b,該環狀收容槽6b收容圖2(c)、(d)所示的止動環6e。An annular receiving groove 6b is provided in the inner peripheral portion of the moving sleeve 6 at a predetermined distance from the end opposite to the inclined opening portion 6c, and the annular receiving groove 6b accommodates FIGS. 2(c) and (d). The stop ring 6e is shown.
止動環6e為有彈性的合成樹脂製造(特別是優選聚乙烯(PE),但並不局限於該材料)的環狀體,整體收容於環狀收容槽6b內,其環內周部6g不是向移動套筒6突起的部分。即環內周部6g的內徑為套筒內周部6a的內徑D8以上。The snap ring 6e is an annular body made of a resilient synthetic resin (particularly preferably polyethylene (PE), but not limited to the material), and is housed in the annular receiving groove 6b as a whole, and has a ring inner peripheral portion 6g. It is not a portion that protrudes toward the moving sleeve 6. That is, the inner diameter of the inner circumferential portion 6g of the ring is equal to or larger than the inner diameter D8 of the inner circumferential portion 6a of the sleeve.
另一方面,在套筒內周部6a中設有向將套筒內周部6a部分作為圓的情況下,向弓狀的中心方向伸出的止動部6f。該止動部6f的視內徑(止動部6f的切線圓的內徑)比套筒內周部6a的內徑D8小,但由於彈性與無擴徑的合成樹脂管1的外周相對應,並撓性接觸。On the other hand, the sleeve inner peripheral portion 6a is provided with a stopper portion 6f that protrudes in the arcuate center direction when the sleeve inner peripheral portion 6a is formed as a circle. The apparent inner diameter of the stopper portion 6f (the inner diameter of the tangential circle of the stopper portion 6f) is smaller than the inner diameter D8 of the sleeve inner peripheral portion 6a, but the elasticity corresponds to the outer circumference of the synthetic resin tube 1 having no expanded diameter. And flexible contact.
由於這樣的構成,當該移動套筒6外插到無擴徑的合成樹脂管1上時,可以通過人手使其滑行移動,但即使手放開也不會由自重相對合成樹脂管1滑行移動,從而發揮止動的效果。另外,圖1的接頭主體5和該圖2的移動套筒6組合為管接頭10。Due to such a configuration, when the moving sleeve 6 is externally inserted into the non-expanded synthetic resin tube 1, it can be slidably moved by a human hand, but even if the hand is released, it does not slide by the self-weight relative to the synthetic resin tube 1. To play the effect of the stop. In addition, the joint main body 5 of FIG. 1 and the moving sleeve 6 of FIG. 2 are combined into a pipe joint 10.
圖3為表示本發明的擴徑工具一實施例。(a)為其主視圖、(b)為(a)的前視圖、(c)為(a)的縱剖面圖、(d1)、(d2)-(f1)、(f2)分別為可拆卸交換的3種擴徑部的側視圖和前視圖。Fig. 3 is a view showing an embodiment of the diameter expanding tool of the present invention. (a) is the front view, (b) is the front view of (a), (c) is the longitudinal section of (a), (d1), (d2)-(f1), (f2) are detachable respectively Side view and front view of the three enlarged diameter sections exchanged.
該擴徑工具20其基本構成和專利文獻7中記載的構成相同,專利文獻7中未記載的、作為該擴徑工具20的特徵的、與專利文獻7記載的構成不同之處在於該擴徑部分的長度B1-B3和擴徑部14-15B的外徑C1-C3之間存在一定關係方面。The basic configuration of the diameter-expanding tool 20 is the same as that described in Patent Document 7, and the feature of the diameter-expanding tool 20 that is not described in Patent Document 7 is different from the configuration described in Patent Document 7 in that the diameter is expanded. There is a certain relationship between the lengths B1-B3 of the portions and the outer diameters C1-C3 of the enlarged diameter portions 14-15B.
當該擴經工具20反復進行使操作手柄11接近或離開的操作時,具有圓錐頂部的擴徑芯體13不可逆地按圖3(a)分步驟地向右方向移動,因此由分成六部分構成的擴徑部14的外徑依次擴大,將合成樹脂管1的管端部1a擴徑。When the expansion tool 20 repeatedly performs the operation of bringing the operation handle 11 close to or away, the enlarged diameter core 13 having the conical top portion irreversibly moves in the right direction stepwise in accordance with FIG. 3(a), and thus is composed of six parts. The outer diameter of the enlarged diameter portion 14 is sequentially enlarged, and the pipe end portion 1a of the synthetic resin pipe 1 is expanded in diameter.
當使控制杆12按圖5(c)的雙點線所示的狀態轉動時,通過擴徑芯體13內藏的彈簧返回原來的位置,擴徑部14的外徑也恢復到原來的外徑。When the control lever 12 is rotated in the state shown by the double-dotted line in Fig. 5(c), the spring that is built in the enlarged diameter core 13 returns to the original position, and the outer diameter of the enlarged diameter portion 14 is restored to the original outer position. path.
在此,根據圖3(a)-(c)、(d1)、(d2)中記載的擴徑工具20,其擴徑部分長度為B1,根據擴徑部外徑C1的擴徑部14,以適於連接圖1、2所示的管接頭10的方式可以對合成樹脂管1的管端部1a進行擴徑。Here, according to the diameter expansion tool 20 shown in FIGS. 3(a)-(c), (d1), and (d2), the diameter-expanding portion has a length B1, and according to the diameter-enlarged portion 14 of the diameter-enlarged portion outer diameter C1, The pipe end portion 1a of the synthetic resin pipe 1 can be expanded in diameter so as to be suitable for connecting the pipe joint 10 shown in Figs.
即根據該擴徑部14,因為擴徑部外徑C1比無擴徑的合成樹脂管1的內徑D0小,所以,能夠容易地插入其管端部1a,通過擴徑在管端部1a的外徑與接頭主體5的導向部3的導向部內表面3a相對應的狀態下,可以無阻力地外插到內插筒部2上,其管端部1a的端面接觸導向部裏端3b,可以容易地定位管端部1a的外插狀態。其具體通過圖6在下面說明。In other words, the diameter-enlarged portion 14 has a smaller outer diameter C1 than the inner diameter D0 of the synthetic resin tube 1 having no diameter expansion, so that the tube end portion 1a can be easily inserted and the tube end portion 1a can be expanded. In a state in which the outer diameter corresponds to the inner surface 3a of the guide portion of the guide portion 3 of the joint main body 5, it can be externally inserted into the inner tube portion 2 without resistance, and the end surface of the tube end portion 1a contacts the inner end portion 3b of the guide portion. The extrapolated state of the tube end 1a can be easily positioned. This is specifically described below with reference to FIG. 6.
另外,上述合成樹脂管1、由接頭主體5和移動套筒6構成的管接頭10以及擴經工具20總稱為管連接裝置50。此外,擴徑部14A、14B分別與不同內外徑的合成樹脂管相對應,分別為分成四部分構成。Further, the above-described synthetic resin pipe 1, the pipe joint 10 composed of the joint main body 5 and the moving sleeve 6, and the expansion tool 20 are collectively referred to as a pipe connecting device 50. Further, the enlarged diameter portions 14A and 14B respectively correspond to synthetic resin tubes having different inner and outer diameters, and are respectively formed in four parts.
圖4為表示本發明的連接工具一實施例。(a)為其俯視圖、(b)為其主視圖、(c)為表示其內部機構的縱剖面圖。Fig. 4 is a view showing an embodiment of the connecting tool of the present invention. (a) is a plan view, (b) is a front view, and (c) is a longitudinal cross-sectional view showing the internal mechanism.
該連接工具30與專利文獻4中記載的工具相同。在將圖1的接頭主體5中通過圖3的擴經工具20管端部1a擴徑後的合成樹脂管1外插定位之後,在外插于管端部1a上的狀態,使移動套筒6相對於接頭主體5擠壓移動,移動套筒6位於內插筒部2的外側,使移動套筒6的前端以接觸導向部3的端面的方式來移動。This connection tool 30 is the same as the tool described in Patent Document 4. After the synthetic resin tube 1 expanded in diameter by the tube end portion 1a of the expansion tool 20 of Fig. 3 is externally inserted and positioned in the joint main body 5 of Fig. 1, the outer sleeve is inserted into the tube end portion 1a, and the moving sleeve 6 is moved. The moving sleeve 6 is located outside the insertion tube portion 2 so as to be moved relative to the joint main body 5, so that the front end of the moving sleeve 6 moves in contact with the end surface of the guide portion 3.
為此,連接工具30包括接觸到接頭主體5的中間部5a的內插筒部2側端面的主體側的兩股擠壓部21A、以及接觸到移動套筒6的相反向管端部1a側端面的套筒側的兩股擠壓部21B。通過操作操作手柄22,相對於主體側的兩股擠壓部21A,可以使套筒側的兩股擠壓部21B在保持雙方平行的狀態下接近移動。To this end, the connecting tool 30 includes two pressing portions 21A contacting the main body side of the end face of the intermediate portion 5a of the joint main body 5 on the side of the insertion cylindrical portion 2, and the opposite end to the tube end portion 1a contacting the moving sleeve 6. Two extruded portions 21B on the sleeve side of the end face. By operating the operating handle 22, the two pressing portions 21B on the sleeve side can be moved close to each other in a state in which both of them are parallel with respect to the two pressing portions 21A on the main body side.
此外,該連接工具30內藏棘輪機構,不可逆地實現上述接近移動。但也內藏棘輪解除機構,在接近移動完成之後,可以恢復到原來的開放狀態。Further, the connecting tool 30 has a ratchet mechanism built therein to irreversibly achieve the above-described approach movement. However, the ratchet release mechanism is also built in, and after the completion of the movement, it can be restored to the original open state.
由此,通過擴經工具20對上述合成樹脂管進行擴徑,將其擴徑後的管端部1a外插到接頭主體5上,通過連接工具30使移動套筒6移動,將合成樹脂管1連接到管接頭10上,其狀態變化使用圖5、6進行說明。Thereby, the synthetic resin pipe is expanded by the expansion tool 20, the pipe end portion 1a whose diameter is expanded is externally inserted into the joint main body 5, and the moving sleeve 6 is moved by the joint tool 30 to form a synthetic resin pipe. 1 is connected to the pipe joint 10, and its state change is explained using Figs.
圖5(a)、(b)、(c)為依次表示利用本發明的擴徑工具的合成樹脂管的管端部的擴徑狀態變化的說明圖。對於以上已經說明的部分標注相同符號,省略重復說明。(a), (b), and (c) of FIG. 5 are explanatory views sequentially showing changes in the diameter-expanded state of the pipe end portion of the synthetic resin pipe using the diameter expanding tool of the present invention. The same reference numerals are given to the parts that have been described above, and the repeated description is omitted.
首先,如圖5(a)所示,在無擴徑的合成樹脂管1上,移動套筒6以其傾斜開口部6c側為管端部1a的方式來外插,準備擴徑工具20。First, as shown in Fig. 5 (a), the movable sleeve 6 is inserted into the synthetic resin tube 1 having no diameter expansion so that the inclined opening portion 6c side is the tube end portion 1a, and the expanding tool 20 is prepared.
其次,如圖5(b)所示,移動套筒6在外插的狀態下,無擴徑的管端部1a外插到擴徑工具20的最小直徑狀態的擴徑部14上。Next, as shown in Fig. 5(b), in the state in which the moving sleeve 6 is externally inserted, the tube end portion 1a having no diameter expansion is externally inserted into the enlarged diameter portion 14 of the smallest diameter state of the expanding tool 20.
接著,如圖5(c)所示,當反復進行擴徑工具20的操作手柄11的操作時,管端部1a以達到滿足上述條件的內外徑的方式進行擴徑。在此,當控制杆12向以雙點線所示的方向轉動時,不可逆的鎖定被解除,擴徑部14恢復到最小直徑狀態,可以拆下管端部1a被擴徑後的合成樹脂管1,且可以進行與圖6的管接頭10的連接工序。Next, as shown in FIG. 5(c), when the operation of the operation handle 11 of the diameter expanding tool 20 is repeated, the pipe end portion 1a is expanded in diameter so as to reach the inner and outer diameters satisfying the above conditions. Here, when the control lever 12 is rotated in the direction indicated by the double dotted line, the irreversible locking is released, the enlarged diameter portion 14 is restored to the minimum diameter state, and the synthetic resin tube after the pipe end portion 1a is expanded can be removed. 1, and the connection process with the pipe joint 10 of FIG. 6 can be performed.
圖6(a)-(d)為依次表示將管端部擴徑後的合成樹脂管與管接頭連接的狀態變化的縱剖面圖。6(a) to 6(d) are longitudinal cross-sectional views showing, in order, a state in which a synthetic resin pipe having an enlarged diameter of a pipe end portion is connected to a pipe joint.
首先,如圖6(a)所示,當擴徑後自然縮徑,且管端部1a的外徑達到與接頭主體5的導向部3的導向部內表面3a相對應的直徑時,管端部1a在沿導向部內表面3a的狀態下,直至管端部1a的端面接觸導向部裏端3b的位置,管端部1a外插到內插筒部2上。因此,實現管端部1a的外插狀態的定位。First, as shown in Fig. 6(a), when the diameter is naturally reduced, and the outer diameter of the pipe end portion 1a reaches a diameter corresponding to the inner surface 3a of the guide portion of the guide portion 3 of the joint main body 5, the pipe end portion In the state of 1a along the inner surface 3a of the guide portion, the tube end portion 1a is externally inserted into the inner tube portion 2 until the end surface of the tube end portion 1a contacts the inner end portion 3b of the guide portion. Therefore, the positioning of the extrapolated state of the tube end portion 1a is achieved.
此時,如圖6(a)所表明,該擴徑狀態的管端部1a的內周和內插筒部2的外周之間存在空隙,內插筒部2插入管端部1a無阻力,管端部1a相對於接頭主體5容易地定位並外插。而且,在該期間,通過導向部3的導向部內表面3a和管端部1a的外周的接觸,保持管端部1a的中心和內插筒部2的中心為一致的狀態。At this time, as shown in Fig. 6(a), there is a gap between the inner circumference of the pipe end portion 1a in the expanded diameter state and the outer circumference of the inner insertion cylinder portion 2, and the insertion tube portion 2 is inserted into the pipe end portion 1a without resistance. The tube end 1a is easily positioned and extrapolated with respect to the joint body 5. Further, during this period, the center of the tube end portion 1a and the center of the insertion tube portion 2 are kept in a state of being in contact with each other by the contact of the guide inner surface 3a of the guide portion 3 and the outer circumference of the tube end portion 1a.
另外,在該圖6(a)的狀態,無須等待進一步自然縮徑,如圖6(c)、(d)所示,通過連接工具30,使移動套筒6與接頭主體5移動接觸,完成連接,在該情況下,提高作業效率。Further, in the state of FIG. 6(a), it is not necessary to wait for further natural reduction of the diameter, and as shown in FIGS. 6(c) and (d), the moving sleeve 6 is moved into contact with the joint main body 5 by the joint tool 30, and the completion is completed. Connection, in this case, improve work efficiency.
其次,隨著時間流逝,如圖6(b)所示,管端部1a的前端在與導向部3的導向部內表面3a接觸的同時,通過從管端部1a的裏側進行縮徑,管端部1a的內表面處於與內插筒部2的前端的內插凸部2a接觸的狀態。因此,在軸向前後兩處,確保接頭主體5和管端部1a的同心性,在更好的同心狀態下,合成樹脂管1與接頭主體5連接。Next, as time passes, as shown in Fig. 6(b), the tip end of the pipe end portion 1a is reduced in diameter from the back side of the pipe end portion 1a while being in contact with the guide portion inner surface 3a of the guide portion 3, and the pipe end The inner surface of the portion 1a is in a state of being in contact with the insertion convex portion 2a at the distal end of the insertion tube portion 2. Therefore, the concentricity of the joint main body 5 and the pipe end portion 1a is ensured at two places in the axial direction, and the synthetic resin pipe 1 is connected to the joint main body 5 in a better concentric state.
接著,如圖6(c)所示,通過連接工具30的主體側的兩股擠壓部21A和套筒側的兩股擠壓部21B,夾持接頭主體5和移動套筒6,通過連接工具30的操作,當套筒側的兩股擠壓部21B移動,並接近主體側的兩股擠壓部21A時,如圖6(d)所示完成了兩者的連接。Next, as shown in FIG. 6(c), the joint main body 5 and the moving sleeve 6 are clamped by the two pressing portions 21A on the main body side of the joint tool 30 and the two pressing portions 21B on the sleeve side, and are connected by When the tool 30 is operated, when the two pressing portions 21B on the sleeve side move and approach the two pressing portions 21A on the main body side, the connection between the two is completed as shown in Fig. 6(d).
這樣,根據管連接裝置50,可以將擴徑後的合成樹脂管1的管端部1a無阻力地外插到管接頭10的內插筒部2上,而且,可以在擴徑後的管端部1a和內插筒部2的兩中心一致的狀態下連接合成樹脂管,可以提高作業效率。Thus, according to the pipe connecting device 50, the pipe end portion 1a of the expanded synthetic resin pipe 1 can be externally inserted into the inner tube portion 2 of the pipe joint 10 without any resistance, and can be expanded at the pipe end. When the two portions of the portion 1a and the inner insertion tube portion 2 are aligned, the synthetic resin tube is connected, and work efficiency can be improved.
此外,在圖6(a)、(b)的過程中,在擴徑後的合成樹脂管1的管端部1a與導向部3的導向部內表面3a相對應的外徑狀態中,包括從管端部1a的外徑比導向部內表面3a略大,但通過人手可以壓入程度的狀態,到管端部1a的外徑比導向部內表面3a小,但比導向部裏端3b的內徑D4大的狀態(保持管端部1a的外插基準規定)。Further, in the process of FIGS. 6(a) and (b), in the outer diameter state corresponding to the pipe end portion 1a of the expanded synthetic resin pipe 1 and the guide inner surface 3a of the guide portion 3, the slave pipe is included. The outer diameter of the end portion 1a is slightly larger than the inner surface 3a of the guide portion, but the outer diameter of the tube end portion 1a is smaller than the inner surface 3a of the guide portion by the state of being pressed by the human hand, but is smaller than the inner diameter D4 of the inner end 3b of the guide portion. The large state (predetermined by the extrapolation reference of the tube end 1a).
在其進行自然縮徑的一定時間內,因為管端部1a的內徑可以保持比內插筒部2的外徑D3大的狀態,可以將管端部1a無阻力地插入內插筒部2,所以,可以無須匆忙,穩妥地向管端部1a的接頭主體5進行外插,提高操作性。In a certain period of time during which the natural diameter reduction is performed, since the inner diameter of the tube end portion 1a can be maintained larger than the outer diameter D3 of the inner tube portion 2, the tube end portion 1a can be inserted into the inner tube portion 2 without resistance. Therefore, it is possible to perform the extrapolation to the joint main body 5 of the pipe end portion 1a without rushing, thereby improving the operability.
此外,如圖6(b)所示,在管端部1a的內徑的裏側接觸內插筒部2的最前端的內插凸部2a的狀態下,即使管端部1a的前端側的外周相對於導向部3的導向部內表面3a進行產生空隙程度的縮徑,因為管端部1a的外插定位已經通過向導向部裏端3b的管端部1a的端面的接觸來實現,擴徑後的管端部1a和內插筒部2的同心性通過兩者內外表面的接觸來保持,所以,不存在問題。In addition, as shown in FIG. 6(b), in the state in which the inner side of the inner diameter of the pipe end portion 1a contacts the innermost insertion convex portion 2a of the inner tube portion 2, even the outer periphery of the front end side of the pipe end portion 1a is provided. The diameter reduction of the degree of void generation is performed with respect to the inner surface 3a of the guide portion of the guide portion 3, since the extrapolation positioning of the tube end portion 1a has been achieved by the contact of the end faces of the tube end portion 1a of the inner end 3b of the guide portion, after the diameter expansion The concentricity of the tube end portion 1a and the inner insertion tube portion 2 is maintained by the contact between the inner and outer surfaces of the both, so that there is no problem.
因而,根據本發明的管連接裝置50,管端部1a擴徑之後,具有更多的時間,而且,無阻力地可以進行管端部1a的外插定位,進而,提高操作性。Therefore, according to the pipe connecting device 50 of the present invention, the pipe end portion 1a has more time after the diameter is expanded, and the pipe end portion 1a can be externally positioned without resistance, thereby improving the operability.
換言之,根據上述管連接裝置50,管接頭10包括導向部3,該導向部3定位管端部1a的外插狀態,在無阻力可移動地插入於所述內插筒部2外側的擴徑後不久的管端部1a通過自然縮徑直至與內插筒部2緊密結合的期間,為了使該擴徑狀態的管端部1a的中心和內插筒部2的中心處於一致的狀態,能夠通過所述移動套筒6的移動進行夾持,配置在可移動地插入於所述內插筒部2的外側的處於擴徑狀態的管端部1a的前端側的外周緣,可以說由此發揮上述效果。In other words, according to the above-described pipe connecting device 50, the pipe joint 10 includes a guide portion 3 which positions the expanded state of the pipe end portion 1a and is movably inserted into the outer side of the inner cylindrical portion 2 without resistance. When the pipe end portion 1a is in a state in which the pipe end portion 1a is in a state of being in a state of being in a state in which the pipe end portion 1a of the diameter-enlarged state and the center of the interposing tube portion 2 are in a state of being in a state of being in a state of being in a state of being in a state of being in a state in which the pipe end portion 1a is in close contact with By the movement of the moving sleeve 6, the outer peripheral edge of the distal end side of the tube end portion 1a in the expanded diameter state which is movably inserted outside the insertion tube portion 2 can be said. Play the above effects.
再進一步說,本發明的管連接裝置50,在將擴徑後更慢地縮徑的管端部1a的前端側通過導向部3進行內插筒部2的無阻力地外插定位之後,在由擴徑後更快地縮徑的管端部1a的裏側維持同心性的同時,可以操作良好地實現向通過移動套筒6的移動的合成樹脂管1的管接頭10的連接,巧妙地利用了合成樹脂管1的擴徑後的自然縮徑的狀態變化。Further, in the pipe connecting device 50 of the present invention, after the distal end side of the pipe end portion 1a which is reduced in diameter after the diameter expansion is expanded, the insertion portion 3 is externally inserted and positioned without resistance by the guide portion 3, The concentricity of the inner side of the pipe end portion 1a which is reduced in diameter after the diameter expansion is maintained, and the connection of the pipe joint 10 of the synthetic resin pipe 1 which is moved by the moving sleeve 6 can be realized with good operation, and the use is skillfully utilized. The state of the natural reduced diameter of the synthetic resin pipe 1 after the diameter expansion is changed.
圖7為表示本發明的管接頭的接頭主體的另一實施例。(a)為其俯視圖、(b)為其主視圖、(c)為其二分之一的剖面的部分主視圖、(d)為其外觀立體圖。Fig. 7 is a view showing another embodiment of the joint main body of the pipe joint of the present invention. (a) is a top view of the plan view, (b) its front view, (c) a half of its cross section, and (d) its external perspective view.
該接頭主體5A與圖1的接頭主體5相比,不同點是以中間部5g為中心,通過同軸中心在相對向的方向上,設有內插筒部2A、導向部3A,用於合成樹脂管1彼此間的連接。使用與圖2相同的移動套筒6。The joint main body 5A is different from the joint main body 5 of FIG. 1 in that the intermediate portion 5g is centered, and the interposing cylinder portion 2A and the guide portion 3A are provided in the opposing direction through the coaxial center for synthetic resin. The tubes 1 are connected to each other. The same moving sleeve 6 as in Fig. 2 was used.
此外,不同點是導向部3A設置在圓周對分的相對向的2處,導向部內表面3d由平面構成,導向部裏端3e為棱狀和圓弧狀部件構成。另外,定位確認凹口3f相當於圖1的接頭主體5的導向部3的定位確認凹口3c。Further, the difference is that the guide portion 3A is provided at two positions facing each other in the circumferential direction, the guide portion inner surface 3d is constituted by a flat surface, and the guide portion inner end 3e is formed of a prismatic shape and an arc-shaped member. Further, the positioning confirmation recess 3f corresponds to the positioning confirmation recess 3c of the guide portion 3 of the joint main body 5 of Fig. 1 .
但是,根據具備該接頭主體5A的管連接裝置,在上述管連接裝置10的結構和主要部分中,均為相同。可知能發揮與管連接裝置10相同的效果。However, according to the pipe connecting device including the joint main body 5A, the configuration and main portions of the pipe connecting device 10 are the same. It can be seen that the same effect as the pipe connecting device 10 can be exhibited.
另外,導向部內表面3d僅為相對向的2處,雖然不保證向與該導向部內表面3d垂直相交方向的同心性,但是,通過導向部裏端3e的管端部1a的外插定位來實現,其後,因為在管端部1a的內周和內插筒部2A的外周之間確保兩者的同心性,所以,該方面沒有問題。Further, the inner surface 3d of the guide portion is only two places facing each other, and although concentricity in a direction perpendicular to the inner surface 3d of the guide portion is not secured, the insertion and positioning of the end portion 1a of the inner end 3e of the guide portion is realized. Thereafter, since the concentricity between the inner circumference of the tube end portion 1a and the outer circumference of the inner tube portion 2A is ensured, there is no problem in this respect.
圖8為表示本發明的擴徑工具的另一實施例。(a)為其側視圖、(b)為其主視圖。Fig. 8 is a view showing another embodiment of the diameter expanding tool of the present invention. (a) its side view and (b) its main view.
該擴徑工具20A其基本構成與專利文獻5中記載的工具相同,專利文件5中未記載的、作為該擴經工具20A的特徵的、與專利文獻5記載的不同之處在於其擴徑部分的長度B4、B5和擴徑部14C、D的外徑C4、C5之間存在一定關係方面。The basic diameter of the diameter-expanding tool 20A is the same as that of the tool described in Patent Document 5. The difference between the patent document 5 and the feature of the expansion tool 20A is that the diameter-expanding portion is different from that described in Patent Document 5. The lengths B4 and B5 and the outer diameters C4 and C5 of the enlarged diameter portions 14C and D have a certain relationship.
該擴徑工具20A當使操作手柄11A接近時,通過連杆機構為分成二部分的擴徑部14C、D的各部分的間距變大,對合成樹脂管的管端部進行擴徑。但是,上述擴徑部分的長度B4、B5和擴徑部14C、D的外徑C4、C5之間的關係與擴徑工具20相同,發揮相同的效果。When the operating handle 11A is brought close to each other, the distance between the respective portions of the enlarged diameter portions 14C and D which are divided into two parts by the link mechanism is increased, and the pipe end portion of the synthetic resin pipe is expanded in diameter. However, the relationship between the lengths B4 and B5 of the enlarged diameter portion and the outer diameters C4 and C5 of the enlarged diameter portions 14C and D is the same as that of the diameter expanding tool 20, and exhibits the same effect.
另外,根據該擴徑工具20,因為擴徑部14C、D為分成二部分,所以,僅能對合成樹脂管的相對向的一個方向擴徑,但在該擴徑狀態下,如果使合成樹脂管的管端部和擴徑部14C、D相對地轉動,可以在合成樹脂管的管端部的全周範圍進行擴徑。Further, according to the diameter expansion tool 20, since the diameter-enlarged portions 14C and D are divided into two parts, only the diameter of the synthetic resin tube can be increased in one direction, but in the diameter-expanded state, if the synthetic resin is used The tube end portion of the tube and the enlarged diameter portions 14C and D are relatively rotated, and the diameter can be expanded over the entire circumference of the tube end portion of the synthetic resin tube.
此外,在連接如圖7所說明的僅具有相對向2處的導向部3A的接頭主體5A的情況下,僅在該方向以與導向部內表面3d相對應的方式進行擴徑,其他部分可以超過內插筒部2A的外徑的程度進行擴徑,在該情況下,可以省去該部分擴徑的費時操作。Further, in the case of connecting the joint main body 5A having only the guide portions 3A opposite to each other as illustrated in Fig. 7, the diameter is expanded only in the direction corresponding to the inner surface 3d of the guide portion, and other portions may exceed The degree of expansion of the outer diameter of the inner cylindrical portion 2A is increased, and in this case, time consuming operation of expanding the diameter of the portion can be omitted.
另外,本發明的管連接裝置不局限於上述實施例,可以是記載在專利請求的範圍、實施例的範圍內的各種變形例、組合,這些變形例、組合也包括在該權利範圍中。Further, the pipe connecting device of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the patent claims and the scope of the embodiments, and such modifications and combinations are also included in the scope of the claims.
例如,導向部的個數在本文表示了2個和4個,但也可以是3個,5個以上。For example, the number of the guide portions is two and four, but it may be three or five.
本發明的管連接裝置能夠將擴徑後的合成樹脂管的管端部無阻力地外插到管接頭的內插筒部上,而且,能夠在使擴徑後的管端部和內插筒部的兩中心一致的狀態下連接合成樹脂管,可應用於需要提高作業效率的管連接相關的產業領域。The pipe connecting device of the present invention can externally insert the pipe end portion of the expanded synthetic resin pipe into the inner tube portion of the pipe joint without any resistance, and can further enlarge the diameter of the pipe end portion and the inner insert cylinder The synthetic resin tube is connected in a state in which the two centers of the part are connected, and it can be applied to an industrial field related to pipe connection in which work efficiency is required to be improved.
上述實施例僅係為了方便說明而舉例而已,本發明所主張之權利範圍自應以申請專利範圍所述為準,而非僅限於上述實施例。The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.
1...合成樹脂管1. . . Synthetic resin tube
1a...管端部1a. . . Tube end
2、2A...內插筒部2, 2A. . . Inner tube
2a...內插凸部2a. . . Interpolating convex
2b...內插凹部2b. . . Interpolating recess
2c...內周部2c. . . Inner circumference
3...導向部3. . . Guide
3a...導向部內表面3a. . . Inner surface of the guide
3b...導向部裏端3b. . . Inside the guide
3c...凹口3c. . . Notch
4...殘餘厚度收容部4. . . Residual thickness housing
5、5A...接頭主體5, 5A. . . Connector body
5a...中間部5a. . . Middle part
5b...六角部5b. . . Hexagon
5c...連接螺紋部5c. . . Connecting thread
5d...主體內周部5d. . . Inner circumference of the main body
5f...主體側連接部5f. . . Main body side connection
5g...中間部5g. . . Middle part
6...移動套筒6. . . Moving sleeve
6a...套筒內周部6a. . . Inner circumference of the sleeve
6b...環狀收容槽6b. . . Annular storage slot
6c...傾斜開口部6c. . . Inclined opening
6e...止動環6e. . . Stop ring
6f...止動部6f. . . Stop
10...管接頭10. . . Pipe joint
11、22...操作手柄11, 22. . . Operating handle
12...控制杆12. . . Controller
14A、14B、14C、14D...擴徑部14A, 14B, 14C, 14D. . . Expansion section
20、20A...擴徑工具20, 20A. . . Expansion tool
21A、21B...擠壓部21A, 21B. . . Extrusion
30...連接工具30. . . Connection tool
50...管連接裝置50. . . Pipe connection device
D0、D1、D8...內徑D0, D1, D8. . . the inside diameter of
D2、D3、D5、D6、D7...外徑D2, D3, D5, D6, D7. . . Outer diameter
圖1為表示本發明的管接頭一實施例的接頭主體;(a)為其俯視圖、(b)為其二分之一的剖面主視圖、(c)為其仰視圖、(d)為其內插筒部的放大AA剖面圖、(e)為其內插筒部的放大主視圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a joint main body of an embodiment of a pipe joint according to the present invention; (a) a plan view thereof, (b) a cross-sectional front view of one half thereof, (c) a bottom view thereof, and (d) The enlarged AA cross-sectional view of the interposer portion and (e) is an enlarged front view of the interposing cylinder portion.
圖2為表示與接頭主體組合來構成管接頭的移動套筒;(a)為其二分之一的剖面主視圖、(b)為其側視圖、(c)為內插於其移動套筒的定位環的縱剖面圖、(d)為(c)的一部分的放大側視圖。Fig. 2 is a view showing a moving sleeve which is combined with a joint main body to constitute a pipe joint; (a) a cross-sectional front view of one half thereof, (b) a side view thereof, and (c) an inner sleeve inserted therein The longitudinal cross-sectional view of the positioning ring and (d) are enlarged side views of a part of (c).
圖3為表示本發明的擴徑工具一實施例;(a)為其主視圖、(b)為其前視圖、(c)為(a)的縱剖面圖、(d1)、(d2)-(f1)、(f2)分別為可拆卸交換的3種擴徑部的側視圖和前視圖。Figure 3 is a view showing an embodiment of the diameter expanding tool of the present invention; (a) its front view, (b) its front view, (c) a longitudinal section of (a), (d1), (d2)- (f1) and (f2) are respectively a side view and a front view of three types of enlarged diameter portions that are detachably exchanged.
圖4為表示本發明的連接工具一實施例;(a)為其俯視圖、(b)為其主視圖、(c)為表示其內部機構的縱剖面圖。Fig. 4 is a view showing an embodiment of the connecting tool of the present invention; (a) is a plan view thereof, (b) is a front view thereof, and (c) is a longitudinal sectional view showing an internal mechanism thereof.
圖5(a)、(b)、(c)為依次表示利用本發明的擴徑工具的合成樹脂管的管端部的擴徑狀態變化的說明圖。(a), (b), and (c) of FIG. 5 are explanatory views sequentially showing changes in the diameter-expanded state of the pipe end portion of the synthetic resin pipe using the diameter expanding tool of the present invention.
圖6(a)-(d)為依次表示將管端部擴徑後的合成樹脂管與管接頭連接的狀態變化的縱剖面圖。6(a) to 6(d) are longitudinal cross-sectional views showing, in order, a state in which a synthetic resin pipe having an enlarged diameter of a pipe end portion is connected to a pipe joint.
圖7為表示本發明的管接頭的接頭主體的另一實施例。(a)為其俯視圖、(b)為其主視圖、(c)為其二分之一的剖面的部分主視圖、(d)為其外觀立體圖。Fig. 7 is a view showing another embodiment of the joint main body of the pipe joint of the present invention. (a) is a top view of the plan view, (b) its front view, (c) a half of its cross section, and (d) its external perspective view.
圖8為表示本發明的擴徑工具的另一實施例。(a)為其側視圖、(b)為其主視圖。Fig. 8 is a view showing another embodiment of the diameter expanding tool of the present invention. (a) its side view and (b) its main view.
1...合成樹脂管1. . . Synthetic resin tube
1a...管端部1a. . . Tube end
3...導向部3. . . Guide
4...殘餘厚度收容部4. . . Residual thickness housing
5...接頭主體5. . . Connector body
6...移動套筒6. . . Moving sleeve
10...管接頭10. . . Pipe joint
21A...擠壓部21A. . . Extrusion
21B...擠壓部21B. . . Extrusion
30...連接工具30. . . Connection tool
50...管連接裝置50. . . Pipe connection device
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US4165104A (en) * | 1973-04-27 | 1979-08-21 | Wavin B.V. | Sealed joint pipe connection |
US4850621A (en) * | 1988-03-22 | 1989-07-25 | Usui Kokusai Sangyo Kabushiki Kaisha | Structure having interconnected metal tubes |
TW328983B (en) * | 1996-01-10 | 1998-04-01 | Suui Kokusai Sangyo Kk | Connection structure and process for connecting eye-joints and slender metal pipes |
US6059338A (en) * | 1996-02-28 | 2000-05-09 | Mannesmann Ag | Pipe connection |
TW475045B (en) * | 1999-06-02 | 2002-02-01 | Caillau Ets | Device for interconnecting two smooth tubes in leaktight manner |
TWI266021B (en) * | 2002-05-31 | 2006-11-11 | Toyox Kk | Hose connection structure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3331368B2 (en) * | 1998-06-15 | 2002-10-07 | 未来工業株式会社 | Connector for connecting synthetic resin tubes |
JP2005016561A (en) * | 2003-06-23 | 2005-01-20 | Mirai Kk | Fluid pipe connector, fluid pipe connection device, method for connecting fluid pipe connector to fluid pipe, and fluid pipe having fluid pipe connector |
JP2009103169A (en) * | 2007-10-22 | 2009-05-14 | Onda Seisakusho Seki Kojo:Kk | Joint |
-
2009
- 2009-09-14 JP JP2009211462A patent/JP5426972B2/en active Active
- 2009-12-03 TW TW098141310A patent/TWI393625B/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4165104A (en) * | 1973-04-27 | 1979-08-21 | Wavin B.V. | Sealed joint pipe connection |
US4850621A (en) * | 1988-03-22 | 1989-07-25 | Usui Kokusai Sangyo Kabushiki Kaisha | Structure having interconnected metal tubes |
TW328983B (en) * | 1996-01-10 | 1998-04-01 | Suui Kokusai Sangyo Kk | Connection structure and process for connecting eye-joints and slender metal pipes |
US6059338A (en) * | 1996-02-28 | 2000-05-09 | Mannesmann Ag | Pipe connection |
TW475045B (en) * | 1999-06-02 | 2002-02-01 | Caillau Ets | Device for interconnecting two smooth tubes in leaktight manner |
TWI266021B (en) * | 2002-05-31 | 2006-11-11 | Toyox Kk | Hose connection structure |
Also Published As
Publication number | Publication date |
---|---|
TW201109157A (en) | 2011-03-16 |
JP2011058599A (en) | 2011-03-24 |
JP5426972B2 (en) | 2014-02-26 |
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MM4A | Annulment or lapse of patent due to non-payment of fees |