TWI801747B - Joint device for repair and assembly method thereof - Google Patents

Joint device for repair and assembly method thereof Download PDF

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TWI801747B
TWI801747B TW109124618A TW109124618A TWI801747B TW I801747 B TWI801747 B TW I801747B TW 109124618 A TW109124618 A TW 109124618A TW 109124618 A TW109124618 A TW 109124618A TW I801747 B TWI801747 B TW I801747B
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protrusion
sealing
divided
split
joint
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TW109124618A
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TW202204799A (en
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淺田進一
内藤正夫
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日商日本維克多利克股份有限公司
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Abstract

本發明提供一種修補用接頭裝置10，可藉由焊接將分割罩殼11、分割罩殼11接合，且可簡單地進行焊接作業。修補用接頭裝置10包括多個分割罩殼11，各分割罩殼11具有分割套筒11A、設於分割套筒11A的兩端部的一對端板21、21、以及設於各端板21的密封收納用突起22。於密封收納用突起22、密封收納用突起22間形成有無突起區域23。於該無突起區域23設有輔助突起裝置25。The present invention provides a joint device 10 for repairing, which can join the split casing 11 and the split casing 11 by welding, and the welding operation can be easily performed. The joint device 10 for repair includes a plurality of divided cases 11, and each divided case 11 has a divided sleeve 11A, a pair of end plates 21, 21 provided on both ends of the divided sleeve 11A, and a pair of end plates 21 provided on each end plate 21. Protrusion 22 for sealed storage. A protrusion-free region 23 is formed between the sealing and storing protrusion 22 and the sealing and storing protrusion 22 . An auxiliary protrusion device 25 is provided in the non-protrusion area 23 .

Description

修補用接頭裝置及其組裝方法Joint device for repair and assembly method thereof

本揭示是有關於一種修補用接頭裝置及其組裝方法，所述修補用接頭裝置設置於供液體流通的配管之間的洩漏部位，並且包含沿圓周方向經分割為多個的分割罩殼（housing），本揭示尤其是有關於一種可藉由焊接將各分割罩殼接合且可簡單地進行焊接處理作業的修補用接頭裝置及其組裝方法。The present disclosure relates to a joint device for repair and an assembly method thereof. The joint device for repair is installed at a leakage site between pipes through which liquid flows, and includes a plurality of divided housings along the circumferential direction. ), and in particular, the present disclosure relates to a joint device for repair and an assembly method thereof that can join each divided case by welding and can perform welding processing easily.

於水管或工業用配管等的埋設後，有時由經年變化、地基的變動而導致於襯墊（packing）或管體或者接頭部產生龜裂，或有時焊接部劣化。此時，於管內流動的液體洩漏。After burying of water pipes or industrial piping, etc., cracks may occur in packing, pipe bodies, or joints due to changes over time and foundations, or welds may deteriorate. At this time, the liquid flowing in the tube leaks.

因此，於液體自配管洩漏的情形時，考慮設置修補用接頭裝置，該修補用接頭裝置將包含洩漏部位的修補對象接頭總體被覆。Therefore, when the liquid leaks from the piping, it is conceivable to install a joint device for repair that covers the entire joint to be repaired including the leakage site.

作為此種修補用接頭裝置，例如已知有將構成配管的第一配管及第二配管從外周覆蓋並且包含多個分割罩殼的修補用接頭裝置。As such a joint device for repair, for example, a joint device for repair that covers first and second pipes constituting the pipes from the outer periphery and includes a plurality of divided covers is known.

此時，修補用接頭裝置包含沿圓周方向經分割為多個、例如兩個的所述分割罩殼。In this case, the joint device for repair includes the above-mentioned divided case divided into a plurality, for example, two, along the circumferential direction.

於組裝此種修補用接頭裝置時，若可藉由焊接將各分割罩殼接合，則可簡化總體的結構而便利性良好。 [現有技術文獻] [專利文獻]When assembling such a joint device for repair, if the divided cases can be joined by welding, the overall structure can be simplified and the convenience is improved. [Prior art literature] [Patent Document]

[專利文獻1]日本專利特開平5-118491 [專利文獻2]日本專利特開2012-37041[Patent Document 1] Japanese Patent Laid-Open No. Hei 5-118491 [Patent Document 2] Japanese Patent Laid-Open No. 2012-37041

[發明所欲解決之課題] 本揭示是考慮所述方面而成，其目的在於提供一種修補用接頭裝置及其組裝方法，可藉由焊接將構成修補用接頭裝置的各分割罩殼接合，且可簡單地進行焊接作業。 [解決課題之手段][Problem to be Solved by the Invention] The present disclosure is made in consideration of the above points, and an object of the present disclosure is to provide a joint device for repair and an assembly method thereof, which can join the divided cases constituting the joint device for repair by welding, and can perform welding work easily. [Means to solve the problem]

本揭示為一種修補用接頭裝置，將配管從外周覆蓋，並且包含沿圓周方向經分割且相互藉由焊接經由接合面而接合的多個分割罩殼，且各分割罩殼具有：分割套筒，將所述配管從外周覆蓋；一對端板，設於所述分割套筒的軸線方向的兩端部；以及密封收納用突起，設於各端板的軸線方向的外表面，於與所述配管之間形成密封收納空間，並且沿圓周方向延伸，各密封收納用突起並未延伸至所述接合面，鄰接的一對分割罩殼中，於其中一個分割罩殼的密封收納用突起與另一個分割罩殼的密封收納用突起之間形成有無突起區域，於所述無突起區域裝卸自如地設有輔助突起裝置，所述輔助突起裝置於與所述配管之間形成追加的密封收納空間。The present disclosure is a joint device for repair, which covers the pipe from the outer periphery, and includes a plurality of divided cases which are divided in the circumferential direction and joined to each other through the joint surface by welding, and each divided case has: a divided sleeve, The pipe is covered from the outer periphery; a pair of end plates are provided at both ends of the axial direction of the split sleeve; A sealed storage space is formed between the pipes and extends in the circumferential direction. The protrusions for sealing and storage do not extend to the joint surface. A non-protrusion area is formed between the sealing and storage protrusions of one divided case, and an auxiliary protrusion device is detachably provided in the non-protrusion area, and the auxiliary protrusion device forms an additional airtight storage space with the pipe.

本揭示為一種修補用接頭裝置，其中所述輔助突起裝置具有：輔助突起，嵌入至所述無突起區域內；以及輔助固定件，保持所述輔助突起，固定於所述其中一個分割罩殼的密封收納用突起及所述另一個分割罩殼的密封收納用突起。The present disclosure is a joint device for repair, wherein the auxiliary protrusion device has: an auxiliary protrusion embedded in the non-protrusion area; and an auxiliary fixing member holding the auxiliary protrusion and fixed to one of the divided cases The protrusion for airtight storage and the protrusion for airtight storage of the other divided case.

本揭示為一種修補用接頭裝置，其中於各分割罩殼的所述密封收納用突起，設有密封按壓環配件，所述密封按壓環配件保持安裝於所述密封收納空間及所述追加的密封收納空間的密封環。The present disclosure is a joint device for repair, in which a sealing pressing ring fitting is provided on the sealing storage protrusion of each divided case, and the sealing pressing ring fitting is kept installed in the sealing storage space and the additional sealing Sealing ring for storage space.

本揭示為一種修補用接頭裝置，其中所述密封環包含經由接觸面而分為兩個的一對分割密封環。The present disclosure is a joint device for repair, wherein the seal ring includes a pair of split seal rings divided into two via a contact surface.

本揭示為一種修補用接頭裝置的組裝方法，組裝修補用接頭裝置，所述修補用接頭裝置將配管從外周覆蓋，並且包含沿圓周方向經分割且相互藉由焊接經由接合面而接合的多個分割罩殼，所述修補用接頭裝置的組裝方法包括：準備多個分割罩殼的步驟，所述多個分割罩殼具有：分割套筒，將所述配管從外周覆蓋；一對端板，設於所述分割套筒的軸線方向兩端部；及密封收納用突起，設於各端板的軸線方向外表面，於與所述配管之間形成密封收納空間，並且沿圓周方向延伸，且各分割罩殼的密封收納用突起並未延伸至所述接合面；將各分割罩殼設置於所述配管的外周的步驟，且鄰接的一對分割罩殼中，於其中一個分割罩殼的密封收納用突起與另一個分割罩殼的密封收納用突起之間形成無突起區域；藉由焊接將一對分割罩殼經由所述接合面進行接合的步驟；將殘留於一對分割罩殼的所述接合面的焊接余高去除的步驟；以及於所述無突起區域設置輔助突起裝置的步驟，所述輔助突起裝置於與所述配管之間形成追加的密封收納空間。 本揭示為一種修補用接頭裝置的組裝方法，其中於所述一對分割罩殼的所述接合面中，至少將殘留於所述無突起區域及與所述追加的密封收納空間對應的部分的焊接余高去除。The present disclosure is a method of assembling a joint device for repair. The joint device for repair is assembled. The joint device for repair covers the pipe from the outer periphery and includes a plurality of pipes that are divided in the circumferential direction and joined to each other by welding through the joint surface. The method of assembling the split casing, the joint device for repair, includes the step of preparing a plurality of split casings, the plurality of split casings having: a split sleeve covering the piping from the outer periphery; a pair of end plates, provided at both ends of the split sleeve in the axial direction; and a sealing and receiving protrusion provided on the axial outer surface of each end plate, forming a sealing and receiving space with the pipe, and extending in the circumferential direction, and The protrusions for sealing storage of each split case do not extend to the joint surface; the step of disposing each split case on the outer periphery of the pipe, and in a pair of adjacent split cases, at the end of one of the split cases A non-protruding area is formed between the protrusion for sealing storage and the protrusion for sealing storage of another divided case; a step of joining a pair of divided cases through the joint surface by welding; The step of removing the welding reinforcement of the joint surface; and the step of providing an auxiliary protrusion device in the non-protrusion area, and the auxiliary protrusion device forms an additional sealed storage space between the piping. The present disclosure is a method of assembling a joint device for repair, wherein at least part of the non-protruding area and the portion corresponding to the additional sealed storage space are left on the joint surfaces of the pair of split cases. Weld reinforcement removal.

本揭示為一種修補用接頭裝置的組裝方法，更包括下述步驟：於各分割罩殼的所述密封收納空間及所述追加的密封收納空間嵌入密封環，於所述密封收納用突起設置保持所述密封環的密封按壓環配件。 [發明的效果]The present disclosure is a method for assembling a joint device for repair, further comprising the steps of: inserting a sealing ring into the sealing storage space and the additional sealing storage space of each split casing, and setting and holding the sealing ring on the sealing storage protrusion. The sealing pressing ring fitting of the sealing ring. [Effect of the invention]

根據本揭示，可簡化總體的結構，且可提高密封性。According to the present disclosure, the overall structure can be simplified and the sealing performance can be improved.

＜本實施形態＞ 以下，藉由圖1至圖9對本實施形態的修補用接頭裝置加以說明。＜This embodiment＞ Hereinafter, the joint device for repair of this embodiment will be described with reference to FIGS. 1 to 9 .

如圖1及圖2所示，本實施形態的修補用接頭裝置10將具有通過中心的軸線的圓筒狀的洩漏管（第一配管）1、及具有通過中心的軸線的圓筒狀的洩漏管（第二配管）2從外周覆蓋，包括多個、例如兩個分割罩殼11、11。As shown in FIGS. 1 and 2 , the repair joint device 10 of this embodiment comprises a cylindrical leakage pipe (first pipe) 1 having an axis passing through the center and a cylindrical leakage pipe having an axis passing through the center. The pipe (second piping) 2 is covered from the outer periphery and includes a plurality of, for example, two divided casings 11 , 11 .

而且，兩個分割罩殼11、11是沿圓周方向分割為兩個，相互經由接合面13焊接而接合。Furthermore, the two split cases 11 , 11 are divided into two in the circumferential direction, and are joined to each other by welding via the joint surface 13 .

其中，上方的分割罩殼11構成修補用接頭裝置10的上半部，下方的分割罩殼11構成修補用接頭裝置10的下半部。Among them, the upper split case 11 constitutes the upper half of the repair joint device 10 , and the lower split case 11 constitutes the lower half of the repair joint device 10 .

進而，如圖1及圖2所示，各分割罩殼11包括：將第一配管1及第二配管2從外周覆蓋的半圓筒狀的分割套筒11A、設於分割套筒11A中沿著軸線方向的第一配管1側的一端部的端板21、以及設於第二配管2側的另一端部的端板21。Furthermore, as shown in FIGS. 1 and 2 , each split case 11 includes: a semicylindrical split sleeve 11A covering the first pipe 1 and the second pipe 2 from the outer periphery; An end plate 21 at one end on the first pipe 1 side in the axial direction, and an end plate 21 provided at the other end on the second pipe 2 side.

再者，修補用接頭裝置10主要應對從第一配管1與第二配管2之間的接合面3的液體洩漏，但亦可應對例如由第一配管1或第二配管2的任一個的破損所致的洩漏。此時，修補用接頭裝置10是覆蓋經破損的第一配管1或第二配管2的任一個的外周而設置。Moreover, the joint device 10 for repair mainly deals with liquid leakage from the joint surface 3 between the first pipe 1 and the second pipe 2, but it can also deal with damage caused by either the first pipe 1 or the second pipe 2, for example. resulting leakage. At this time, the joint device 10 for repair is provided to cover the outer periphery of either the damaged first pipe 1 or the second pipe 2 .

如上文所述，於各分割罩殼11的分割套筒11A的軸線方向的兩端部設有一對端板21、21。而且，於各端板21、21的軸線方向外表面，設有於與對應的第一配管1或第二配管2之間形成密封收納空間35的密封收納用突起22。所述密封收納用突起22沿圓周方向延伸而形成於各端板21、21的軸線方向外表面，而且在密封收納空間35內插裝有後述的密封環30。As described above, a pair of end plates 21 and 21 are provided at both ends in the axial direction of the split sleeve 11A of each split case 11 . Further, on the axially outer surface of each end plate 21 , 21 , there is provided a sealing accommodation protrusion 22 that forms a sealing accommodation space 35 between the corresponding first pipe 1 or second pipe 2 . The seal housing protrusions 22 extend in the circumferential direction and are formed on the axially outer surfaces of the end plates 21 , 21 , and a seal ring 30 described later is inserted into the seal housing space 35 .

此外，各密封收納用突起22並未延伸至分割罩殼11間的接合面13，鄰接的一對分割罩殼11中，於其中一個分割罩殼11的密封收納用突起22、與另一個分割罩殼11的密封收納用突起22之間形成有無突起區域23、無突起區域23。形成於所述其中一個分割罩殼11的密封收納用突起22、與另一個分割罩殼11的密封收納用突起22之間的無突起區域23、無突起區域23包含其中一個分割罩殼11的無突起區域23、及另一個分割罩殼11的無突起區域23。In addition, each protrusion 22 for sealing and storing does not extend to the joint surface 13 between the divided cases 11, and in a pair of adjacent divided cases 11, the protrusion 22 for sealing and storing in one of the divided cases 11 is separated from the other. A non-protrusion region 23 and a non-protrusion region 23 are formed between the sealing and housing protrusions 22 of the case 11 . The non-protrusion area 23 formed between the protrusion 22 for sealing and storage of one of the split cases 11 and the protrusion 22 for sealing and storage of the other split case 11, the non-protrusion area 23 includes the portion of one of the split cases 11. The non-protruding area 23 and another non-protruding area 23 of the divided case 11 .

藉由如此般於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間設置無突起區域23、無突起區域23，從而於如後述般將分割罩殼11、分割罩殼11經由接合面13進行焊接時，可容易地進行分割罩殼11、分割罩殼11中尤其是端板21、端板21的焊接作業及焊接後的焊接余高的去除作業。By providing the non-protrusion area 23 and the non-protrusion area 23 between the divided case 11 and the protrusion 22 for sealing and storing of the divided case 11 and the protrusion 22 for sealing and storing in this way, the divided case 11 and the divided case 11 can be separated as described later. When the casing 11 is welded through the joint surface 13, the split casing 11, the welding operation of the split casing 11, especially the end plate 21, the end plate 21, and the removal of the welding reinforcement after welding can be easily performed.

例如，於不在分割罩殼11、分割罩殼11的端板21、端板21設置無突起區域23、無突起區域23，而將密封收納用突起22、密封收納用突起22設置至接合面13，即設置至端板21、端板21的端部的情形時，端板21、端板21彼此的焊接作業變得煩雜，且焊接余高的去除作業亦變困難。相對於此，根據本實施形態，藉由在分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間設置無突起區域23、無突起區域23，從而可容易地進行端板21、端板21的焊接作業及焊接後的焊接余高的去除作業。For example, instead of providing the non-protrusion area 23 and the non-protrusion area 23 on the split case 11, the end plate 21 of the split case 11, and the end plate 21, the protrusions 22 for sealing storage and the protrusions 22 for sealing storage are provided on the joint surface 13. , That is, when it is installed at the end of the end plate 21 and the end plate 21, the welding operation between the end plate 21 and the end plate 21 becomes complicated, and the removal operation of the welding reinforcement also becomes difficult. On the other hand, according to the present embodiment, by providing the non-protruding area 23 and the non-protruding area 23 between the divided case 11, the protrusion 22 for sealing and storing the divided case 11, and the protrusion 22 for sealing and storing, it is possible to easily carry out the process. End plate 21, welding operation of end plate 21 and removal of welding reinforcement after welding.

於如此般形成於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23，如後述般裝卸自如地安裝有輔助突起裝置25，所述輔助突起裝置25於與對應的第一配管1或第二配管之間形成追加的密封收納空間36。The auxiliary protrusion means 25 is detachably attached to the divided case 11, the protrusion 22 for sealing storage of the divided case 11, the non-protrusion area 23 between the protrusions 22 for sealing storage, and the non-protrusion area 23 as described later. The auxiliary protrusion device 25 forms an additional sealed storage space 36 between the corresponding first pipe 1 or the second pipe.

所述輔助突起裝置25具有：輔助突起26，嵌入至形成於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23內；以及輔助固定件27，保持所述輔助突起26。此時，藉由輔助突起裝置25的輔助突起26，而於與第一配管1及第二配管2之間形成追加的密封收納空間36。而且，輔助固定件27藉由安裝螺桿28而固著於輔助突起26。另外，如此構成的輔助突起裝置25藉由貫穿輔助固定件27延伸的安裝螺桿29而安裝於各分割罩殼11、11的密封收納用突起22。The auxiliary protrusion device 25 has: auxiliary protrusions 26, which are embedded in the non-protrusion area 23 and the non-protrusion area 23 formed between the split case 11, the protrusion 22 for sealing and storage of the split case 11, and the protrusion 22 for sealing and storage; And an auxiliary fixing piece 27 for holding the auxiliary protrusion 26 . At this time, an additional sealed storage space 36 is formed between the first pipe 1 and the second pipe 2 by the auxiliary protrusion 26 of the auxiliary protrusion device 25 . Moreover, the auxiliary fixing member 27 is fixed to the auxiliary protrusion 26 by the mounting screw 28 . In addition, the auxiliary protrusion device 25 configured in this way is attached to the protrusion 22 for sealing and housing of each divided case 11 , 11 by the attachment screw 29 extending through the auxiliary fixing member 27 .

此時，貫穿輔助突起裝置25的輔助固定件27而延伸的安裝螺桿29插裝至開口22b內，所述開口22b在設於各分割罩殼11、11的密封收納用突起22中形成於半徑方向外表面（參照圖7）。At this time, the mounting screw 29 extending through the auxiliary fixing member 27 of the auxiliary protrusion device 25 is inserted into the opening 22b formed in the sealing accommodation protrusion 22 provided on each of the divided casings 11, 11 at a radius direction outer surface (refer to Figure 7).

而且，圖5至圖8中，於設於各分割罩殼11、11的密封收納用突起22、密封收納用突起22中，於軸線方向外表面亦形成有開口22a。Furthermore, in FIGS. 5 to 8 , openings 22 a are also formed on the outer surfaces in the axial direction in the protrusions 22 for sealing and housing provided in the respective divided cases 11 and 11 , and the protrusions 22 for sealing and housing.

如上文所述，藉由設於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22，而於與第一配管1及第二配管2之間形成有密封收納空間35，而且，藉由輔助突起裝置25，而於與第一配管1及第二配管2之間形成有追加的密封收納空間36，於所述密封收納空間35及追加的密封收納空間36內安裝有密封環30。As described above, a sealed storage space is formed between the first pipe 1 and the second pipe 2 by the divided case 11 , the protrusion 22 for sealed storage provided on the divided case 11 , and the protrusion 22 for sealed storage. 35, and, by means of the auxiliary protrusion device 25, an additional sealed storage space 36 is formed between the first pipe 1 and the second pipe 2, and it is installed in the sealed storage space 35 and the additional sealed storage space 36 There is a sealing ring 30 .

繼而，對安裝於密封收納空間35及追加的密封收納空間36內的密封環30加以描述。密封環30包含彈性橡膠，包含具有楔形形狀並且經分割的一對分割密封環31、32。分割密封環31、分割密封環32經由傾斜的接觸面30a而相互接觸。Next, the seal ring 30 installed in the seal storage space 35 and the additional seal storage space 36 will be described. The seal ring 30 is made of elastic rubber and includes a pair of divided seal rings 31 , 32 having a wedge shape. The split seal ring 31 and the split seal ring 32 are in contact with each other via the inclined contact surface 30a.

密封環30安裝於密封收納空間35及追加的密封收納空間36內，將密封按壓環配件24嵌入至密封收納空間35內，使螺桿38經由穿設於密封按壓環配件24的螺桿孔而貫穿密封按壓環配件24。繼而，將螺桿38插裝至設於密封收納用突起22的軸向外表面的開口22a內並緊固。此時，分割密封環31、分割密封環32於軸線方向被密封按壓環配件24壓縮，分割密封環31、分割密封環32藉由傾斜的接觸面30a而亦於半徑方向移動，形成抵接於端板21、密封收納用突起22、輔助突起裝置25的輔助突起26、及對應的第一配管1或第二配管2的密封環30。The sealing ring 30 is installed in the sealing storage space 35 and the additional sealing storage space 36, and the sealing pressing ring fitting 24 is inserted into the sealing storage space 35, so that the screw 38 penetrates the sealing through the screw hole provided in the sealing pressing ring fitting 24. Press the ring fitting 24. Next, the screw rod 38 is inserted into the opening 22a provided on the axially outer surface of the protrusion 22 for sealing storage, and fastened. At this time, the split seal ring 31 and the split seal ring 32 are compressed by the seal pressing ring fitting 24 in the axial direction, and the split seal ring 31 and the split seal ring 32 also move in the radial direction through the inclined contact surface 30a to form contact with The end plate 21 , the protrusion 22 for sealing and storage, the auxiliary protrusion 26 of the auxiliary protrusion device 25 , and the corresponding sealing ring 30 of the first pipe 1 or the second pipe 2 .

於本實施形態中，分割密封環31、分割密封環32之間的接觸面30a的傾斜角（楔角）例如設定為45°。In this embodiment, the inclination angle (wedge angle) of the contact surface 30 a between the split seal ring 31 and the split seal ring 32 is set to, for example, 45°.

於本實施形態中，修補用接頭裝置10將自作為修補對象的第一配管1與第二配管2之間的接合面3漏出的液體密封於修補用接頭裝置10內。在修補用接頭裝置10的上端設有空氣出入口47，在下端設有流出排水口48，所述空氣出入口47及流出排水口48於施工時閉塞，於修補後，修補用接頭裝置10內部成為密封狀態。In the present embodiment, the joint device 10 for repair seals liquid leaking from the joint surface 3 between the first pipe 1 and the second pipe 2 to be repaired in the joint device 10 for repair. The upper end of the joint device 10 for repair is provided with an air inlet and outlet 47, and the lower end is provided with an outflow drain port 48. The air inlet and outlet 47 and the outflow drain port 48 are blocked during construction. After repairing, the interior of the repair joint device 10 becomes sealed. state.

繼而，對密封環30加以進一步描述。圖9表示未對構成密封環30的分割密封環31、分割密封環32負載軸壓的情形的組裝時的密封部剖面圖。相向配置的楔形的分割密封環31、分割密封環32中，於其中一個分割密封環31的軸線方向內表面及接觸面30a分別形成有形成裂口（rip）的槽31a、槽31b，於另一個分割密封環32的底面設有形成裂口的槽32a，密封環30的高度成為H。若沿軸線方向施加壓緊力，則分割密封環31、分割密封環32沿軸線方向被壓縮而向半徑方向外方膨脹，將密封收納空間35及追加的密封收納空間36的上下的密封面密封。楔形的分割密封環31、分割密封環32彼此若於相向的接觸面30a上於軸線方向承受壓緊力，則沿軸線方向被壓縮而向半徑方向朝上伸展，密封環30的高度增加，進而密封壓力增大。密封環30的楔角α形成為約45°，藉由將密封環30沿軸線方向壓縮，從而利用密封環30以更大的力擠壓分割罩殼11、分割罩殼11的端板21。而且，藉由將密封環30沿軸線方向壓縮，從而利用密封環30來擠壓密封收納用突起22及輔助突起裝置25的輔助突起26、及對應的第一配管1或第二配管2。藉此，可利用密封環30將修補用接頭裝置10內可靠地密封。Next, the seal ring 30 will be further described. FIG. 9 is a cross-sectional view of the seal portion at the time of assembly when no axial pressure is applied to the split seal ring 31 and the split seal ring 32 constituting the seal ring 30 . Of the wedge-shaped split seal rings 31 and 32 disposed opposite to each other, grooves 31 a and 31 b for forming rips are formed on the inner surface in the axial direction of one of the split seal rings 31 and the contact surface 30 a, respectively. The bottom surface of the split seal ring 32 is provided with a groove 32a forming a split, and the height of the seal ring 30 is H. If a compressive force is applied along the axial direction, the split seal ring 31 and the split seal ring 32 will be compressed along the axial direction and expand outward in the radial direction, sealing the upper and lower sealing surfaces of the seal storage space 35 and the additional seal storage space 36. . If the wedge-shaped segmented sealing ring 31 and the segmented sealing ring 32 are subjected to a compressive force in the axial direction on the opposing contact surfaces 30a, they will be compressed in the axial direction and stretch upward in the radial direction, and the height of the sealing ring 30 will increase. The sealing pressure increases. The wedge angle α of the seal ring 30 is formed to be about 45°, and the seal ring 30 is compressed in the axial direction, so that the split case 11 and the end plate 21 of the split case 11 are pressed by the seal ring 30 with greater force. Then, by compressing the seal ring 30 in the axial direction, the seal ring 30 presses the seal housing protrusion 22 , the auxiliary protrusion 26 of the auxiliary protrusion device 25 , and the corresponding first pipe 1 or second pipe 2 . Thereby, the inside of the repair joint device 10 can be reliably sealed by the seal ring 30 .

繼而，藉由圖3至圖9對包含此種結構的修補用接頭裝置的組裝方法加以說明。Next, a method of assembling the joint device for repair including such a structure will be described with reference to FIGS. 3 to 9 .

首先，如圖3所示，準備一對分割罩殼11，該一對分割罩殼11具有：分割套筒11A，將第一配管1及第二配管2從外周覆蓋；一對端板21、21，設於分割套筒11A的軸線方向的兩端部；以及密封收納用突起22，設於各端板21的軸線方向外表面，於與第一配管1及第二配管2之間形成密封收納空間35。此時，於各分割罩殼11中，密封收納用突起22並未延伸至分割罩殼11的接合面13。First, as shown in FIG. 3 , a pair of split casings 11 is prepared. The pair of split casings 11 has: a split sleeve 11A covering the first pipe 1 and the second pipe 2 from the outer periphery; a pair of end plates 21, 21, provided at the both ends of the axial direction of the split sleeve 11A; and the protrusion 22 for sealing and receiving, provided at the outer surface of each end plate 21 in the axial direction, forming a seal between the first pipe 1 and the second pipe 2. Storage space 35. At this time, in each divided case 11 , the protrusion 22 for sealing and housing does not extend to the joint surface 13 of the divided case 11 .

繼而，如圖4及圖5所示，將一對分割罩殼11配置於第一配管及第二配管的外周。此時，鄰接的一對分割罩殼11中，於其中一個分割罩殼11的密封收納用突起22與另一個分割罩殼11的密封收納用突起22之間形成有無突起區域23、無突起區域23。形成於所述其中一個分割罩殼11的密封收納用突起22、與另一個分割罩殼11的密封收納用突起22之間的無突起區域23、無突起區域23包含其中一個分割罩殼11的無突起區域23、及另一個分割罩殼11的無突起區域23。Next, as shown in FIGS. 4 and 5 , a pair of divided casings 11 are arranged on the outer peripheries of the first and second pipes. At this time, in a pair of adjacent split cases 11 , between the protrusion 22 for sealing and housing of one of the split cases 11 and the protrusion 22 for sealing and housing of the other split case 11 , there are formed a region without a protrusion 23 and a region without a protrusion. twenty three. The non-protrusion area 23 formed between the protrusion 22 for sealing and storage of one of the split cases 11 and the protrusion 22 for sealing and storage of the other split case 11, the non-protrusion area 23 includes the portion of one of the split cases 11. The non-protruding area 23 and another non-protruding area 23 of the divided case 11 .

然後，藉由焊接將一對分割罩殼11經由接合面13而接合。此時，沿著一對分割罩殼11的接合面13而於接合面13的外方形成有焊接余高13a。此時，於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間形成有無突起區域23、無突起區域23，故而於分割罩殼11、分割罩殼11中，尤其於端板21、端板21的密封收納用突起22、密封收納用突起22附近，與將密封收納用突起22、密封收納用突起22設置至接合面13的情況相比，可容易地進行焊接作業。Then, the pair of split cases 11 are joined via the joint surface 13 by welding. At this time, a welding reinforcement 13 a is formed outside the joint surface 13 along the joint surface 13 of the pair of split cases 11 . At this time, a protrusion-free area 23 and a protrusion-free area 23 are formed between the divided case 11 and the protrusion 22 for sealing and storing of the divided case 11, and the protrusion 22 for sealing and storing. Therefore, in the divided case 11 and the divided case 11, Especially in the vicinity of the end plate 21, the protrusion 22 for sealing and storage of the end plate 21, and the protrusion 22 for sealing and storage, compared with the case where the protrusion 22 for sealing and storage and the protrusion 22 for sealing and storage are provided on the joint surface 13, it can be easily performed. Welding work.

繼而，針對藉由焊接經由接合面13而接合的一對分割罩殼11、11，使用研磨機40將沿著所述接合面13上殘留的焊接余高13a去除（參照圖6）。Next, with respect to the pair of divided casings 11 and 11 joined by welding via the joint surface 13 , the weld reinforcement 13 a remaining along the joint surface 13 is removed using the grinder 40 (see FIG. 6 ).

此時，使用研磨機40，將一對分割罩殼11、11的接合面13中，至少殘留於端板21的無突起區域23、無突起區域23及與追加的密封收納空間36對應的部分的焊接余高13a去除。此時，於分割罩殼11、分割罩殼11的密封收納用突起22、密封收納用突起22間形成有無突起區域23、無突起區域23，故而尤其對於端板21的密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23及與追加的密封收納空間36對應的部分，可使用研磨機40容易地去除接合面13上的焊接余高13a。At this time, using a grinder 40, at least the non-protrusion region 23 of the end plate 21, the non-protrusion region 23 and the portion corresponding to the additional sealed storage space 36 are left on the joint surface 13 of the pair of split cases 11 and 11. The welding reinforcement 13a is removed. At this time, between the split case 11, the protrusion 22 for sealing and storage of the split case 11, and the protrusion 22 for sealing and storage, there are protrusion-free regions 23 and no-protrusion regions 23, so especially for the protrusions 22, The non-protrusion region 23 between the sealing and storage protrusions 22 , the non-protrusion region 23 and the portion corresponding to the additional sealing and storage space 36 can easily remove the welding reinforcement 13 a on the joint surface 13 by using the grinder 40 .

如此，可使用研磨機40，將端板21中殘留於密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23的焊接余高13a及殘留於與追加的密封收納空間36對應的部分的焊接余高13a可靠地去除。藉此，可使輔助突起裝置25所抵接的端板21、及追加的密封收納空間36內的密封環30所抵接的端板21平滑化，可提高端板21與輔助突起裝置25及端板21與密封環30之間的密接性，可使用密封環30來提高修補用接頭裝置10的密封性。In this way, the grinder 40 can be used to remove the protrusions 22 for sealing and storage in the end plate 21, the non-protrusion regions 23 between the protrusions 22 for sealing and storage, the welding reinforcement 13a of the non-protrusion regions 23, and the residual weld reinforcement 13a of the non-protrusion regions 23 and the additional sealing and storage components. The welding reinforcement 13a of the portion corresponding to the space 36 is reliably removed. Thereby, the end plate 21 on which the auxiliary protrusion device 25 abuts, and the end plate 21 on which the seal ring 30 in the additional sealing storage space 36 abuts can be smoothed, and the connection between the end plate 21 and the auxiliary protrusion device 25 can be improved. The sealability between the end plate 21 and the seal ring 30 can be improved by using the seal ring 30 to improve the sealability of the joint device 10 for repair.

再者，研磨機40具有其動作部40a可***至密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23內的程度的形狀。Furthermore, the grinder 40 has a shape in which the operation part 40 a can be inserted into the protrusion 22 for sealing and storage, the non-protrusion region 23 between the protrusions 22 for sealing and storage, and the non-protrusion region 23 .

然後，如圖7所示，於密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23，安裝輔助突起裝置25，所述輔助突起裝置25於與第一配管及第二配管2之間形成追加的密封收納空間36。此時，於輔助突起裝置25的輔助突起26與第一配管1及第二配管2之間形成追加的密封收納空間36。Then, as shown in FIG. 7 , in the protrusion 22 for sealing and storage, the non-protrusion area 23 between the protrusions 22 for sealing and storage, and the non-protrusion area 23, an auxiliary protrusion device 25 is installed, and the auxiliary protrusion device 25 is connected to the first pipe and the first pipe. An additional sealed storage space 36 is formed between the second pipes 2 . At this time, an additional sealed accommodation space 36 is formed between the auxiliary protrusion 26 of the auxiliary protrusion device 25 and the first pipe 1 and the second pipe 2 .

繼而，貫穿輔助突起裝置25的輔助固定件27而設置安裝螺桿29，將安裝螺桿29插裝於密封收納用突起22、密封收納用突起22的開口22b，藉此將輔助突起裝置25固定於一對分割罩殼11、11內（參照圖8）。Then, install the screw rod 29 through the auxiliary fixing part 27 of the auxiliary protrusion device 25, and insert the installation screw rod 29 into the protrusion 22 for sealing and storage, and the opening 22b of the protrusion 22 for sealing and storage, thereby fixing the auxiliary protrusion device 25 on a Inside the divided case 11, 11 (refer to FIG. 8 ).

繼而如圖9所示，於一對分割罩殼11、11的密封收納空間35及追加的密封收納空間36內嵌入密封環30。然後，於密封收納用突起22安裝保持密封環30的密封按壓環配件24，貫穿密封按壓環配件24而安裝螺桿38。該螺桿38隨後插裝於密封收納用突起22的開口22a，緊固螺桿38，藉此利用密封按壓環配件24將密封環30沿著軸線方向擠壓。Next, as shown in FIG. 9 , the seal ring 30 is fitted into the sealed storage space 35 and the additional sealed storage space 36 of the pair of split cases 11 and 11 . Then, the seal retaining ring fitting 24 holding the seal ring 30 is attached to the seal housing protrusion 22 , and the screw 38 is attached through the seal retaining ring fitting 24 . The screw rod 38 is then inserted into the opening 22 a of the seal housing protrusion 22 , and the screw rod 38 is tightened, whereby the seal ring 30 is pressed along the axial direction by the seal pressing ring fitting 24 .

而且，藉由如此將密封環30沿著軸線方向擠壓，從而將密封環30按壓於端板21、密封收納用突起22及輔助突起裝置25、以及第一配管1及第二配管2，藉此可將修補用接頭裝置10內密封。Then, by pressing the seal ring 30 in the axial direction in this way, the seal ring 30 is pressed against the end plate 21, the protrusion 22 for sealing storage, the auxiliary protrusion device 25, and the first pipe 1 and the second pipe 2. This seals the interior of the repair joint device 10 .

如此，根據本實施形態，一對分割罩殼11、11的密封收納用突起22、密封收納用突起22並未到達接合面13，於一對分割罩殼11、11的密封收納用突起22、密封收納用突起22間形成有無突起區域23、無突起區域23。因此，與一對分割罩殼11、11的密封收納用突起22、密封收納用突起22到達接合面13的情況相比，可於分割罩殼11、分割罩殼11中，尤其是密封收納用突起22、密封收納用突起22附近的端板21中，容易且高精度地執行沿著接合面13的焊接作業。而且，焊接後，尤其可於密封收納用突起22、密封收納用突起22附近的端板21中，將沿著接合面13殘留的焊接余高13a容易地去除。Thus, according to the present embodiment, the protrusions 22 and the protrusions 22 of the pair of split cases 11 and 11 do not reach the joint surface 13, but the protrusions 22 and 22 of the pair of split cases 11 and 11 do not reach the junction surface 13. A no-protrusion region 23 and a no-protrusion region 23 are formed between the protrusions 22 for sealing and housing. Therefore, compared with the case where the protrusions 22 for sealing and storage of the pair of split cases 11 and 11 reach the joint surface 13, the split case 11 and the split case 11, especially for sealing and storage, can be used. In the end plate 21 in the vicinity of the protrusion 22 and the sealing and housing protrusion 22 , the welding work along the joint surface 13 can be performed easily and with high precision. Furthermore, after welding, the welding reinforcement 13a remaining along the joint surface 13 can be easily removed especially in the sealing and storing protrusion 22 and the end plate 21 near the sealing and storing protrusion 22 .

而且，可使用研磨機40，將殘留於形成於一對分割罩殼11、11的密封收納用突起22、密封收納用突起22間的無突起區域23、無突起區域23及與追加的密封收納空間36對應的部分的焊接余高13a去除而平滑化。藉此，可將輔助突起裝置25密接地安裝於與無突起區域23、無突起區域23對應的端板21，且可使追加的密封收納空間36內的密封環30可靠地密接於端板21，可使用密封環30進一步提高修補用接頭裝置10的密封性。In addition, the grinder 40 can be used to grind the protrusions 22 formed on the pair of split cases 11 and 11 for sealing and storage, the non-protrusion regions 23 between the protrusions 22 for sealing and storage, the non-protrusion regions 23 and the additional sealing and storage parts. The welding reinforcement 13a of the part corresponding to the space 36 is removed and smoothed. Thereby, the auxiliary protrusion device 25 can be closely attached to the end plate 21 corresponding to the non-protrusion area 23 and the non-protrusion area 23, and the sealing ring 30 in the additional sealing storage space 36 can be reliably and closely attached to the end plate 21. , the seal ring 30 can be used to further improve the sealing performance of the joint device 10 for repair.

1:第一配管 2:第二配管 3:接合面 10:修補用接頭裝置 11:分割罩殼 11A:分割套筒 13:接合面 13a:焊接余高 21:端板 22:密封收納用突起 22a、22b:開口 23:無突起區域 24:密封按壓環配件 25:輔助突起裝置 26:輔助突起 27:輔助固定件 28、29:安裝螺桿 30:密封環 30a:接觸面 31、32:分割密封環 31a、31b、32a:槽 35:密封收納空間 36:追加的密封收納空間 38:螺桿 40:研磨機 40a:動作部 47:空氣出入口 48:流出排水口 H:高度1: First piping 2: Second piping 3: joint surface 10: Joint device for repair 11:Split the shell 11A: split sleeve 13: joint surface 13a: welding reinforcement 21: End plate 22: Protrusion for sealed storage 22a, 22b: opening 23: No raised area 24:Sealing press ring accessories 25: Auxiliary protrusion device 26: Auxiliary protrusion 27: Auxiliary fixture 28, 29: Install the screw 30: sealing ring 30a: contact surface 31, 32: split seal ring 31a, 31b, 32a: slots 35: sealed storage space 36: Additional sealed storage space 38: screw 40: Grinder 40a: action department 47: Air inlet and outlet 48: outflow drain H: height

圖1為表示本實施形態的修補用接頭裝置的立體圖。 圖2為表示修補用接頭裝置的側面圖。 圖3為表示分割罩殼的立體圖。 圖4為表示於第一配管及第二配管的外周配置一對分割罩殼並進行焊接的狀態的立體圖。 圖5為表示圖4所示的分割罩殼的放大圖。 圖6為使用研磨機（grinder）將分割罩殼的焊接余高削除的圖。 圖7為於分割罩殼的無突起區域設有輔助突起裝置的圖。 圖8為固定了輔助突起裝置的圖。 圖9為表示於分割罩殼嵌入密封環的狀態的圖。Fig. 1 is a perspective view showing a joint device for repair according to the present embodiment. Fig. 2 is a side view showing the joint device for repair. Fig. 3 is a perspective view showing a divided case. Fig. 4 is a perspective view showing a state in which a pair of split covers are arranged and welded on the outer peripheries of the first pipe and the second pipe. Fig. 5 is an enlarged view showing the divided case shown in Fig. 4 . FIG. 6 is a diagram showing a welded reinforcement of a divided case removed using a grinder. FIG. 7 is a diagram showing an auxiliary protrusion device provided in a non-protrusion area of a divided case. Fig. 8 is a view in which the auxiliary protrusion device is fixed. Fig. 9 is a view showing a state where a seal ring is fitted into a split case.

1:第一配管1: First piping

2:第二配管2: Second piping

10:修補用接頭裝置10: Joint device for repair

11:分割罩殼11:Split the shell

11A:分割套筒11A: split sleeve

13:接合面13: joint surface

21:端板21: End plate

22:密封收納用突起22: Protrusion for sealed storage

26:輔助突起26: Auxiliary protrusion

27:輔助固定件27: Auxiliary fixture

28:安裝螺桿28: Install the screw

29:安裝螺桿29: Install the screw

47:空氣出入口47: Air inlet and outlet

48:流出排水口48: outflow drain

Claims (7)

一種修補用接頭裝置，將配管從外周覆蓋，並且包含沿圓周方向經分割且相互藉由焊接經由接合面而接合的多個分割罩殼，並且，各分割罩殼具有：分割套筒，將所述配管從外周覆蓋；一對端板，設於所述分割套筒的軸線方向的兩端部；以及密封收納用突起，設於各端板的軸線方向外表面，於與所述配管之間形成密封收納空間，並且沿圓周方向延伸，各密封收納用突起並未延伸至所述接合面，鄰接的一對分割罩殼中，於其中一個分割罩殼的密封收納用突起、與另一個分割罩殼的密封收納用突起之間形成有無突起區域，於所述無突起區域裝卸自如地設有輔助突起裝置，所述輔助突起裝置於與所述配管之間形成追加的密封收納空間。 A joint device for repair, which covers pipes from the outer periphery, and includes a plurality of divided cases which are divided in the circumferential direction and joined to each other by welding through the joint surface, and each divided case has a divided sleeve, The piping is covered from the outer periphery; a pair of end plates are provided at both ends of the axial direction of the split sleeve; A sealed storage space is formed, and extends in the circumferential direction, and each protrusion for sealing and storage does not extend to the joint surface. In a pair of adjacent split cases, the protrusion for sealing and storage in one of the split cases is separated from the other. A non-protrusion area is formed between the sealing housing protrusions of the case, and an auxiliary protrusion device is detachably provided in the non-protrusion area, and the auxiliary protrusion device forms an additional sealing storage space with the pipe. 如請求項1所述的修補用接頭裝置，其中所述輔助突起裝置具有：輔助突起，嵌入至所述無突起區域內；以及輔助固定件，保持所述輔助突起，固定於所述其中一個分割罩殼的密封收納用突起及所述另一個分割罩殼的密封收納用突起。 The joint device for repair according to claim 1, wherein the auxiliary protrusion means has: an auxiliary protrusion embedded in the non-protrusion area; and an auxiliary fixing member holding the auxiliary protrusion and fixed to the one of the divisions The protrusion for sealing and storing of the case and the protrusion for sealing and storing of the other divided case. 如請求項1或請求項2所述的修補用接頭裝置，其中於各分割罩殼的所述密封收納用突起，設有密封按壓環配件，所述密封按壓環配件保持安裝於所述密封收納空間及所述追加的密封收納空間的密封環。 The joint device for repair according to claim 1 or claim 2, wherein a seal pressing ring fitting is provided on the sealing storage protrusion of each divided case, and the sealing pressing ring fitting is kept installed in the sealing storage Space and the sealing ring for the additional sealed storage space. 如請求項3所述的修補用接頭裝置，其中所述密封 環包含經由接觸面而分為兩個的一對分割密封環。 The joint device for repair as claimed in claim 3, wherein the sealing The ring includes a pair of split seal rings divided into two via a contact surface. 一種修補用接頭裝置的組裝方法，所述修補用接頭裝置將配管從外周覆蓋，並且包含沿圓周方向經分割且相互藉由焊接經由接合面而接合的多個分割罩殼，所述修補用接頭裝置的組裝方法包括：準備多個分割罩殼的步驟，所述多個分割罩殼具有：分割套筒，將所述配管從外周覆蓋；一對端板，設於所述分割套筒的軸線方向的兩端部；及密封收納用突起，設於各端板的軸線方向外表面，於與所述配管之間形成密封收納空間，並且沿圓周方向延伸，且各分割罩殼的密封收納用突起並未延伸至所述接合面；將各分割罩殼設置於所述配管的外周的步驟，且鄰接的一對分割罩殼中，於其中一個分割罩殼的密封收納用突起與另一個分割罩殼的密封收納用突起之間形成無突起區域；藉由焊接將一對分割罩殼經由所述接合面進行接合的步驟；將殘留於一對分割罩殼的所述接合面的焊接余高去除的步驟；以及於所述無突起區域設置輔助突起裝置的步驟，所述輔助突起裝置於與所述配管之間形成追加的密封收納空間。 A method of assembling a joint device for repair, which covers a pipe from the outer periphery, and includes a plurality of divided cases divided in the circumferential direction and joined to each other by welding through a joint surface, the joint for repair The method of assembling the device includes: a step of preparing a plurality of divided cases, the plurality of divided cases having: a divided sleeve covering the piping from the outer periphery; a pair of end plates provided on the axes of the divided sleeves direction; and a protrusion for sealing storage, which is provided on the outer surface of each end plate in the axial direction, forms a sealing storage space with the pipe, and extends in the circumferential direction, and is used for sealing storage of each divided case. The protrusion does not extend to the joint surface; the step of disposing each divided case on the outer periphery of the pipe, and in a pair of adjacent divided cases, the protrusion for sealing storage in one of the divided cases is separated from the other Forming a non-protrusion area between the sealing and storage protrusions of the case; joining a pair of split cases through the joint surface by welding; welding reinforcement remaining on the joint surface of the pair of split cases The step of removing; and the step of providing an auxiliary protrusion device in the non-protrusion area, and the auxiliary protrusion device forms an additional sealed storage space between the piping. 如請求項5所述的修補用接頭裝置的組裝方法，其中於所述一對分割罩殼的所述接合面中，至少將殘留於所述無突起區域及與所述追加的密封收納空間對應的部分的焊接余高去除。 The method for assembling a joint device for repair according to claim 5, wherein, on the joint surfaces of the pair of split cases, at least the non-protrusion area remains and corresponds to the additional sealed storage space. The welding reinforcement of the part is removed. 如請求項5或請求項6所述的修補用接頭裝置的組裝方法，更包括下述步驟：於各分割罩殼的所述密封收納空間及所述追加的密封收納空間嵌入密封環，於所述密封收納用突起設置保持所述密封環的密封按壓環配件。The method for assembling a joint device for repair according to claim 5 or claim 6 further includes the following steps: inserting a sealing ring in the sealed storage space and the additional sealed storage space of each split casing, The sealing holding protrusion is provided with a sealing pressing ring fitting for holding the sealing ring.
TW109124618A 2020-07-21 2020-07-21 Joint device for repair and assembly method thereof TWI801747B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015084517A1 (en) * 2013-11-19 2015-06-11 Mueller International, Llc Restraining joint device
TWM551668U (en) * 2017-06-30 2017-11-11 雙餘實業股份有限公司 Pressure-release joint for inflating pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015084517A1 (en) * 2013-11-19 2015-06-11 Mueller International, Llc Restraining joint device
TWM551668U (en) * 2017-06-30 2017-11-11 雙餘實業股份有限公司 Pressure-release joint for inflating pump

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