JP2004316749A - Coupling structure of piping - Google Patents

Coupling structure of piping Download PDF

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Publication number
JP2004316749A
JP2004316749A JP2003110176A JP2003110176A JP2004316749A JP 2004316749 A JP2004316749 A JP 2004316749A JP 2003110176 A JP2003110176 A JP 2003110176A JP 2003110176 A JP2003110176 A JP 2003110176A JP 2004316749 A JP2004316749 A JP 2004316749A
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Japan
Prior art keywords
packing
pipe
joint structure
peripheral surface
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003110176A
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Japanese (ja)
Inventor
Satoshi Furukawa
智 古川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2003110176A priority Critical patent/JP2004316749A/en
Publication of JP2004316749A publication Critical patent/JP2004316749A/en
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  • Joints With Pressure Members (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent piping from eroding by preventing water from accumulating in a joint part. <P>SOLUTION: A clearance between both flange parts 14 and 22 is closed by arranging a flat washer-like packing 23 therein. By this, entry of water into a clearance between the outer peripheral surface of an insert part 11 and the inner peripheral surface of a accepting part 21 can be securely prevented to securely prevent the piping from eroding. Also, since the packing 23 is formed in a flat washer shape, the packing 23 is not extruded to the outer peripheral side of both flange parts 14 and 22 and can be elastically deformed so that the plate thickness of the packing 23 can be reduced. As a result, a problem with the packing wherein the packing 23 is pinched by both holding cases 32 and cut off and the function thereof as a packing cannot be performed can be prevented. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、第１配管に設けられた挿入部を第２配管に設けられた受入部に挿入すことにより、第１配管と第２配管とを接続する配管の継ぎ手構造に関するもので、車両用空調装置の冷媒配管の継ぎ手構造に適用して有効である。
【０００２】
【従来の技術】
従来の冷媒配管用継ぎ手構造は、第１配管に設けられた挿入部を第２配管に設けられた受入部に挿入すことにより、第１配管と第２配管とを接続している（例えば、特許文献１参照）。
【０００３】
そして、特許文献１に記載の発明では、挿入部が受入部に挿入された状態を保持する保持器に水抜き用の隙間（水抜き通路）を設けることより、挿入部の外周面と受入部の内周面との隙間等に進入した水を排水できるようにしている。
【０００４】
【特許文献１】
特開平８−２７７９８３号公報
【０００５】
【発明が解決しようとする課題】
しかし、特許文献１に記載の発明では、隙間に進入した水を排水することにより配管の腐食を防止するものであるが、隙間に進入した水を完全に排水することは、現実的には難しく、配管の腐食を防止することができない場合がある。
【０００６】
本発明は、上記点に鑑み、第１には、従来と異なる新規な配管の継ぎ手構造を提供し、第２には、配管の腐食をより確実に防止することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、上記目的を達成するために、請求項１に記載の発明では、第１配管（１０）に設けられた挿入部（１１）を第２配管（２０）に設けられた受入部（２１）に挿入すことにより、第１配管（１０）と第２配管（２０）とを接続する配管の継ぎ手構造であって、挿入部（１１）の外周面と受入部（２１）の内周面との隙間を塞ぐＯリング（１２）と、挿入部（１１）の根元側に設けられた環状の挿入側フランジ部（１４）と、受入部（２１）の先端側にに設けられた環状の受入側フランジ部（２２）とに挟まれ、両フランジ部（１４、２２）間の隙間を塞ぐ平ワッシャ状のパッキン（２３）と、受入部（２１）及び挿入側フランジ部（１４）を外側から覆うようにして、挿入部（１１）が受入部（２１）に挿入された状態を保持する保持器（３０）とを備えることを特徴とする。
【０００８】
ところで、従来の継ぎ手構造では、保持器（３０）の合わせ面に発生する隙間から保持器（３０）内に進入した水が、両フランジ部（１４、２２）間の隙間から挿入部（１１）の外周面と受入部（２１）の内周面との隙間に進入して配管（１０、２０）を腐食させる原因となるが、本発明では、両フランジ部（１４、２２）間の隙間をパッキン（２３）にて閉塞しているので、挿入部（１１）の外周面と受入部（２１）の内周面との隙間に水が進入してしまうことを確実に防止でき、配管の腐食をより確実に防止することができる。
【０００９】
また仮に、断面が円状のＯリングにてパッキン（２３）を構成すると、パッキン（２３）は潰れることなく、その内径寸法が拡大するように弾性変形して両フランジ部（１４、２２）の外周側にはみ出してしまうおそれが高い。
【００１０】
そして、パッキン（２３）が両フランジ部（１４、２２）の外周側にはみ出してしまうと、はみ出したパッキン（２３）が保持器（３０）に挟まれて切れてしまい、パッキンとしての機能を果たせなくなるおそれがある。
【００１１】
これに対して、本発明では、パッキン（２３）を平ワッシャ状としているので、パッキン（２３）が両フランジ部（１４、２２）の外周側にはみ出してしまうことなく、パッキン（２３）の板厚が薄くなるように弾性変形させることができる。
【００１２】
したがって、パッキン（２３）が保持器（３０）に挟まれて切れてしまい、パッキンとしての機能を果たせなくなるといった問題が発生することを未然に防止することができる。
【００１３】
請求項２に記載の発明では、パッキン（２３）は、板状部材を打ち抜くことにより成形されたものであることを特徴とする。
【００１４】
これにより、金型内に溶融状態の材料を射出して成形した場合に比べて、安価に製造することができ得る。
【００１５】
請求項３に記載の発明では、パッキン（２３）は、ニトリルゴム（ＮＢＲ）製であることを特徴とするものである。
【００１６】
請求項４に記載の発明では、パッキン（２３）は、エチレン・プロピレン・ジエン三元共重合ゴム（ＥＰＤＭ）製であることを特徴とするものである。
【００１７】
因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。
【００１８】
【発明の実施の形態】
本実施形態は、本発明に係る配管の継ぎ手構造を車両用空調装置の冷媒配管の継ぎ手構造に適用したものであって、特に、後部座席用空調装置の冷媒配管のごとく、床下に配設される冷媒配管に適用したものである。
【００１９】
なお、車両用空調装置（車両用蒸気圧縮式冷凍機）は、図１に示すように、冷媒を圧縮する圧縮機１、圧縮機１から吐出した高圧冷媒冷媒を冷却する高圧側熱交換器２、高圧側熱交換器２にて冷却された高圧冷媒を減圧する減圧器３、及び減圧された低圧冷媒を蒸発させて冷凍能力を発揮させる低圧側熱交換器４等からなるものである。
【００２０】
また、図２は冷媒配管の継ぎ手構造を示す分解斜視図であり、図３、４は冷媒配管の継ぎ手構造の外観図であり、図５は図４のＡ−Ａ断面図であり、図６は図４のＢ−Ｂ断面図である。
【００２１】
そして、本実施形態に係る配管の継ぎ手構造は、図６に示すように、第１配管１０に設けられた挿入部１１を第２配管２０に設けられた受入部２１に挿入すことにより、第１配管１０と第２配管２０とを接続する配管の継ぎ手構造である。
【００２２】
挿入部１１には、ニトリルゴム（ＮＢＲ）等のゴム製のシュール手段をなすＯリング１２が装着された２本のＯリング溝１３が設けられており、このＯリング１２により挿入部１１の外周面と受入部２１の内周面との隙間が液密（気密）に密閉されている。
【００２３】
また、挿入部１１の根元側、つまり挿入部１１の先端側と反対側には、受入部２１の先端側に対して環状の平面を有する挿入側フランジ部１４がバルジ加工やスピニング加工等により一体形成されている。
【００２４】
一方、受入部２１の先端側のうち挿入側フランジ部１４に対応する部位には、挿入側フランジ部１４の環状平面と略平行な環状の平面が受入側フランジ部２２が、スピニング加工等により一体形成されている。
【００２５】
そして、両フランジ部１４、２２の間には、平ワッシャ状のパッキン２３が両フランジ部１４、２２によって挟み込まれて固定されており、両フランジ部１４、２２間の隙間は、パッキン２３により液密（気密）に閉塞される。
【００２６】
また、本実施形態に係るパッキン２３は、金型内に溶融状態の材料を射出して成形したものではなく、板状のパッキン材料をプレス機にて打ち抜くことにより成形されたものである。
【００２７】
なお、本実施形態では、パッキン２３としてＮＢＲを使用しているが、弾性及び耐腐食性に優れた材料であれば、ＮＢＲに限定されるものではなく、例えばエチレン・プロピレン・ジエン三元共重合ゴム（ＥＰＤＭ）製としてもよいことは言うまでもない。
【００２８】
また、保持器３０は、受入部２１及び挿入側フランジ部１４を含む受入部２１を外側から覆うようにして、挿入部１１が受入部２１に挿入された状態を保持するもので、本実施形態では、図２、５に示すように、ヒンジ部３１を中心に第１保持ケース３２及び第２保持ケース３３を揺動させて、受入部２１と挿入部１１との嵌合部を両保持ケース３２、３３にて挟み込むようにして挿入状態を保持するものである。
【００２９】
なお、配管１０、２０を挟んでヒンジ部３１と反対側には、両保持ケース３２、３３を係合させて両保持ケース３２、３３がヒンジ部３１を中心に開くことを防止してする係合部３４が設けられている。
【００３０】
次に、本実施形態の作用効果を述べる。
【００３１】
従来の継ぎ手構造では、両保持ケース３２、３３の合わせ面に発生する隙間から保持器３０内に進入した水が、両フランジ部１４、２２間の隙間から挿入部１１の外周面と受入部２１の内周面との隙間に進入して配管１０、２０を腐食させる原因となるが、本実施形態では、両フランジ部１４、２２間の隙間をパッキン２３にて閉塞しているので、挿入部１１の外周面と受入部２１の内周面との隙間に水が進入してしまうことを確実に防止でき、配管の腐食をより確実に防止することができる。
【００３２】
また、本実施形態に係るパッキン２３は、板状のパッキン材料をプレス機にて打ち抜くことにより成形されたものであるので、金型内に溶融状態の材料を射出して成形した場合に比べて、安価に製造することができ得る。
【００３３】
ところで、両フランジ部１４、２２は、互いに平行な状態で対向し、両フランジ部１４、２２の外周側を覆うような壁部が無いため、仮に断面が円状のＯリングにてパッキン２３を構成すると、パッキン２３は潰れることなく、その内径寸法が拡大するように弾性変形して両フランジ部１４、２２の外周側にはみ出してしまうおそれが高い。
【００３４】
そして、パッキン２３が両フランジ部１４、２２の外周側にはみ出してしまうと、両保持ケース３２、３３を係合固定する際に、はみ出したパッキン２３が両保持ケース３２、３３に挟まれて切れてしまい、パッキンとしての機能を果たせなくなるおそれがある。
【００３５】
これに対して、本実施形態では、パッキン２３を平ワッシャ状としているので、パッキン２３が両フランジ部１４、２２の外周側にはみ出してしまうことなく、パッキン２３の板厚が薄くなるように弾性変形させることができる。
【００３６】
したがって、パッキン２３が両保持ケース３２、３３に挟まれて切れてしまい、パッキンとしての機能を果たせなくなるといった問題が発生することを未然に防止することができる。
【００３７】
（その他の実施形態）
上述の実施形態では、冷媒配管の継ぎ手構造に本発明を適用したが、本発明はこれに限定されるものではなく、その他の配管継ぎ手構造にも適用できる。
【図面の簡単な説明】
【図１】本発明の実施形態に係る空調装置の模式図である。
【図２】本発明の実施形態に係る冷媒配管の継ぎ手構造を示す分解斜視図である。
【図３】本発明の実施形態に係る冷媒配管の継ぎ手構造の外観図である。
【図４】本発明の実施形態に係る冷媒配管の継ぎ手構造の外観図である。
【図５】図４のＡ−Ａ断面図である。
【図６】図４のＢ−Ｂ断面図である。
【符号の説明】
１０、２０…配管、１１…挿入部、１２…Ｏリング、
１３…Ｏリング溝、２１…受入部、１４…挿入側フランジ部、
２２…受入側フランジ部、２３…パッキン。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a joint structure of a pipe for connecting a first pipe and a second pipe by inserting an insertion portion provided in a first pipe into a receiving portion provided in a second pipe. It is effective when applied to a joint structure of a refrigerant pipe of an air conditioner.
[0002]
[Prior art]
In the conventional joint structure for a refrigerant pipe, the first pipe and the second pipe are connected by inserting an insertion part provided in the first pipe into a receiving part provided in the second pipe (for example, Patent Document 1).
[0003]
According to the invention described in Patent Literature 1, the retainer holding the insertion portion inserted into the receiving portion is provided with a drainage gap (a drainage passage), so that the outer peripheral surface of the insertion portion and the receiving portion are provided. The water that has entered the gap with the inner peripheral surface of the vehicle can be drained.
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 8-277983 [0005]
[Problems to be solved by the invention]
However, in the invention described in Patent Literature 1, corrosion of piping is prevented by draining water that has entered the gap, but it is actually difficult to completely drain water that has entered the gap. In some cases, corrosion of the piping cannot be prevented.
[0006]
In view of the above, the present invention firstly provides a new pipe joint structure different from the conventional one, and secondly, aims to more reliably prevent corrosion of the pipe.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the insertion portion (11) provided in the first pipe (10) is provided with the receiving portion (11) provided in the second pipe (20). 21) is a pipe joint structure for connecting the first pipe (10) and the second pipe (20) by being inserted into the outer circumference of the insertion portion (11) and the inner circumference of the receiving portion (21). An O-ring (12) for closing the gap with the surface, an annular insertion-side flange portion (14) provided at the base side of the insertion portion (11), and an annular portion provided at the distal end side of the receiving portion (21). A flat washer-like packing (23) sandwiched between the receiving side flange portion (22) and closing the gap between both flange portions (14, 22), and the receiving portion (21) and the insertion side flange portion (14). A cover for keeping the insertion portion (11) inserted into the receiving portion (21) so as to cover it from the outside. Characterized in that it comprises a vessel (30).
[0008]
By the way, in the conventional joint structure, water that has entered the retainer (30) from a gap generated on the mating surface of the retainer (30) flows through the gap between the flange portions (14, 22) into the insertion portion (11). May enter the gap between the outer peripheral surface of the pipe and the inner peripheral surface of the receiving portion (21) and cause corrosion of the pipes (10, 20). In the present invention, the gap between the two flange portions (14, 22) is reduced. Since it is closed by the packing (23), it is possible to reliably prevent water from entering the gap between the outer peripheral surface of the insertion portion (11) and the inner peripheral surface of the receiving portion (21), and to corrode the piping. Can be more reliably prevented.
[0009]
Further, if the packing (23) is constituted by an O-ring having a circular cross section, the packing (23) is not deformed but elastically deforms so as to increase the inner diameter of the packing (23). There is a high possibility that it will protrude to the outer peripheral side.
[0010]
If the packing (23) protrudes to the outer peripheral sides of both flange portions (14, 22), the protruding packing (23) is cut off by being sandwiched by the retainer (30), and can function as a packing. It may disappear.
[0011]
On the other hand, in the present invention, since the packing (23) has a flat washer shape, the packing (23) does not protrude to the outer peripheral side of both flange portions (14, 22), and the plate of the packing (23) does not protrude. It can be elastically deformed so that the thickness becomes thin.
[0012]
Therefore, it is possible to prevent a problem that the packing (23) is cut off by being sandwiched between the retainers (30) and the function as the packing cannot be performed.
[0013]
According to a second aspect of the present invention, the packing (23) is formed by stamping a plate-shaped member.
[0014]
Thereby, it can be manufactured at a lower cost as compared with a case where a molten material is injected into a mold and molded.
[0015]
According to a third aspect of the present invention, the packing (23) is made of nitrile rubber (NBR).
[0016]
According to a fourth aspect of the present invention, the packing (23) is made of ethylene-propylene-diene terpolymer rubber (EPDM).
[0017]
Incidentally, reference numerals in parentheses of the above-mentioned units are examples showing the correspondence with specific units described in the embodiments described later.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
The present embodiment is one in which the pipe joint structure according to the present invention is applied to a refrigerant pipe joint structure of a vehicle air conditioner, and is particularly arranged under the floor, like a refrigerant pipe of a rear seat air conditioner. This is applied to a refrigerant pipe.
[0019]
As shown in FIG. 1, a vehicle air conditioner (vehicle vapor compression refrigerator) includes a compressor 1 for compressing a refrigerant, and a high-pressure side heat exchanger 2 for cooling a high-pressure refrigerant discharged from the compressor 1. And a low-pressure heat exchanger 4 for decompressing the high-pressure refrigerant cooled in the high-pressure heat exchanger 2 and a low-pressure heat exchanger 4 for evaporating the depressurized low-pressure refrigerant to exhibit a refrigerating capacity.
[0020]
FIG. 2 is an exploded perspective view showing a joint structure of the refrigerant pipe, FIGS. 3 and 4 are external views of a joint structure of the refrigerant pipe, FIG. 5 is a cross-sectional view taken along line AA of FIG. FIG. 6 is a sectional view taken along line BB of FIG. 4.
[0021]
The pipe joint structure according to the present embodiment, as shown in FIG. 6, inserts the insertion section 11 provided in the first pipe 10 into the receiving section 21 provided in the second pipe 20, and This is a pipe joint structure for connecting the first pipe 10 and the second pipe 20.
[0022]
The insertion portion 11 is provided with two O-ring grooves 13 on which O-rings 12 serving as a rubber-made Schulle means such as nitrile rubber (NBR) are provided. The gap between the surface and the inner peripheral surface of the receiving portion 21 is sealed in a liquid-tight (airtight) manner.
[0023]
Further, an insertion side flange portion 14 having an annular flat surface with respect to the front end side of the receiving portion 21 is integrally formed on the base side of the insertion portion 11, that is, on the side opposite to the front end side of the insertion portion 11 by bulging or spinning. Is formed.
[0024]
On the other hand, the receiving side flange portion 22 is integrally formed with the receiving side flange portion 22 at a portion corresponding to the insertion side flange portion 14 on the distal end side of the receiving portion 21 by a spinning process or the like. Is formed.
[0025]
A flat washer-like packing 23 is sandwiched and fixed between the two flange portions 14 and 22, and a gap between the two flange portions 14 and 22 is filled with the liquid by the packing 23. It is closed tightly (airtight).
[0026]
In addition, the packing 23 according to the present embodiment is not formed by injecting a molten material into a mold, but is formed by punching a plate-shaped packing material with a press.
[0027]
In this embodiment, NBR is used as the packing 23. However, the material is not limited to NBR as long as the material has excellent elasticity and corrosion resistance. For example, ethylene-propylene-diene terpolymer is used. Needless to say, rubber (EPDM) may be used.
[0028]
The retainer 30 holds the insertion portion 11 inserted into the receiving portion 21 so as to cover the receiving portion 21 including the receiving portion 21 and the insertion-side flange portion 14 from the outside. As shown in FIGS. 2 and 5, the first holding case 32 and the second holding case 33 are swung about the hinge portion 31 so that the fitting portion between the receiving portion 21 and the insertion portion 11 is moved to the two holding cases. The insertion state is maintained by being sandwiched between 32 and 33.
[0029]
On the side opposite to the hinge portion 31 with the pipes 10 and 20 interposed therebetween, the two holding cases 32 and 33 are engaged to prevent the two holding cases 32 and 33 from opening around the hinge portion 31. A joint 34 is provided.
[0030]
Next, the operation and effect of the present embodiment will be described.
[0031]
In the conventional joint structure, water that has entered the retainer 30 through a gap generated at the mating surface of the two holding cases 32 and 33 flows from the gap between the two flange portions 14 and 22 to the outer peripheral surface of the insertion portion 11 and the receiving portion 21. In the present embodiment, the gap between the flange portions 14 and 22 is closed by the packing 23. It is possible to reliably prevent water from entering the gap between the outer peripheral surface of 11 and the inner peripheral surface of the receiving portion 21, and it is possible to more reliably prevent corrosion of piping.
[0032]
Further, since the packing 23 according to the present embodiment is formed by punching a plate-shaped packing material with a press machine, the packing 23 is compared with a case where a molten material is injected into a mold and formed. , Can be manufactured at low cost.
[0033]
Incidentally, since the two flange portions 14 and 22 face each other in a state of being parallel to each other, and there is no wall portion that covers the outer peripheral side of the two flange portions 14 and 22, the packing 23 is temporarily formed with an O-ring having a circular cross section. With this configuration, there is a high possibility that the packing 23 is elastically deformed so as to increase its inner diameter without being crushed, and protrudes to the outer peripheral sides of the flange portions 14 and 22.
[0034]
When the packing 23 protrudes from the outer peripheral sides of the flange portions 14 and 22, when the two holding cases 32 and 33 are engaged and fixed, the protruding packing 23 is cut off by being sandwiched between the two holding cases 32 and 33. It may not be possible to fulfill the function as a packing.
[0035]
On the other hand, in the present embodiment, since the packing 23 has a flat washer shape, the packing 23 does not protrude to the outer peripheral sides of the flange portions 14 and 22, and is elastic so that the plate thickness of the packing 23 is reduced. Can be deformed.
[0036]
Therefore, it is possible to prevent a problem that the packing 23 is cut off by being sandwiched between the holding cases 32 and 33 and the function as the packing cannot be performed.
[0037]
(Other embodiments)
In the above embodiment, the present invention is applied to the joint structure of the refrigerant pipe. However, the present invention is not limited to this, and can be applied to other pipe joint structures.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view illustrating a joint structure of a refrigerant pipe according to the embodiment of the present invention.
FIG. 3 is an external view of a joint structure of a refrigerant pipe according to the embodiment of the present invention.
FIG. 4 is an external view of a joint structure of a refrigerant pipe according to the embodiment of the present invention.
FIG. 5 is a sectional view taken along line AA of FIG. 4;
FIG. 6 is a sectional view taken along line BB of FIG. 4;
[Explanation of symbols]
10, 20: piping, 11: insertion part, 12: O-ring,
13 ... O-ring groove, 21 ... receiving part, 14 ... insertion side flange part,
22: receiving side flange portion, 23: packing.

Claims (4)

第１配管（１０）に設けられた挿入部（１１）を第２配管（２０）に設けられた受入部（２１）に挿入すことにより、前記第１配管（１０）と前記第２配管（２０）とを接続する配管の継ぎ手構造であって、
前記挿入部（１１）の外周面と前記受入部（２１）の内周面との隙間を塞ぐＯリング（１２）と、
前記挿入部（１１）の根元側に設けられた環状の挿入側フランジ部（１４）と、前記受入部（２１）の先端側にに設けられた環状の受入側フランジ部（２２）とに挟まれ、両フランジ部（１４、２２）間の隙間を塞ぐ平ワッシャ状のパッキン（２３）と、
前記受入部（２１）及び前記挿入側フランジ部（１４）を外側から覆うようにして、前記挿入部（１１）が前記受入部（２１）に挿入された状態を保持する保持器（３０）とを備えることを特徴とする配管継ぎ手構造。By inserting the insertion part (11) provided in the first pipe (10) into the receiving part (21) provided in the second pipe (20), the first pipe (10) and the second pipe ( 20) is a pipe joint structure for connecting
An O-ring (12) for closing a gap between an outer peripheral surface of the insertion portion (11) and an inner peripheral surface of the receiving portion (21);
An annular insertion-side flange portion (14) provided at the base side of the insertion portion (11) and an annular reception-side flange portion (22) provided at the tip end of the receiving portion (21). A flat washer-like packing (23) for closing a gap between the two flange portions (14, 22);
A holder (30) for holding the insertion part (11) inserted into the reception part (21) so as to cover the receiving part (21) and the insertion-side flange part (14) from outside; A pipe joint structure comprising: 前記パッキン（２３）は、板状部材を打ち抜くことにより成形されたものであることを特徴とする請求項１に記載の配管の継ぎ手構造。The pipe joint structure according to claim 1, wherein the packing (23) is formed by stamping a plate-shaped member. 前記パッキン（２３）は、ニトリルゴム（ＮＢＲ）製であることを特徴とする請求項１又は２に記載の配管の継ぎ手構造。The joint structure according to claim 1, wherein the packing (23) is made of nitrile rubber (NBR). 前記パッキン（２３）は、エチレン・プロピレン・ジエン三元共重合ゴム（ＥＰＤＭ）製であることを特徴とする請求項１又は２に記載の配管の継ぎ手構造。The joint structure according to claim 1 or 2, wherein the packing (23) is made of ethylene-propylene-diene terpolymer rubber (EPDM).
JP2003110176A 2003-04-15 2003-04-15 Coupling structure of piping Pending JP2004316749A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071468A (en) * 2008-09-19 2010-04-02 Norma Germany Gmbh Push-fit coupling
KR101233409B1 (en) * 2012-09-28 2013-02-15 천영민 Expanded pipe and pipe joint
CN106322014A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp type reducing pipe connection device
CN106322013A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Split clamp type pipe connection device capable of being dismounted and mounted rapidly
CN106322015A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp-type pipe connection device
CN106322012A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp type pipe joint
CN106322016A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Split clamp-type pipe connection device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071468A (en) * 2008-09-19 2010-04-02 Norma Germany Gmbh Push-fit coupling
KR101233409B1 (en) * 2012-09-28 2013-02-15 천영민 Expanded pipe and pipe joint
CN106322014A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp type reducing pipe connection device
CN106322013A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Split clamp type pipe connection device capable of being dismounted and mounted rapidly
CN106322015A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp-type pipe connection device
CN106322012A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Clamp type pipe joint
CN106322016A (en) * 2015-06-30 2017-01-11 大连凯斯博格设备制造有限公司 Split clamp-type pipe connection device
CN106322016B (en) * 2015-06-30 2019-03-22 大连凯斯博格设备制造有限公司 A kind of fission clamping hoop type assembling pipe joint
CN106322012B (en) * 2015-06-30 2019-03-22 大连凯斯博格设备制造有限公司 A kind of housing type joint
CN106322015B (en) * 2015-06-30 2019-03-29 大连凯斯博格设备制造有限公司 A kind of clamping hoop type assembling pipe joint
CN106322013B (en) * 2015-06-30 2019-04-09 大连凯斯博格设备制造有限公司 A kind of seperated clamping hoop type assembling pipe joint of fast demountable
CN106322014B (en) * 2015-06-30 2019-04-09 大连凯斯博格设备制造有限公司 A kind of clamping hoop type tapered pipeline attachment device

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