CN1908495A - Gas kitchen pipe joint - Google Patents
Gas kitchen pipe joint Download PDFInfo
- Publication number
- CN1908495A CN1908495A CNA2006100528304A CN200610052830A CN1908495A CN 1908495 A CN1908495 A CN 1908495A CN A2006100528304 A CNA2006100528304 A CN A2006100528304A CN 200610052830 A CN200610052830 A CN 200610052830A CN 1908495 A CN1908495 A CN 1908495A
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- head
- pipe joint
- separation sleeve
- gas
- afterbody
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Abstract
Disclosed is a gas kitchen pipe joint, which has a hollow supported joint and a threaded fitting is arranged on the head of the supported joint. The inner shoulder of the threaded fitting is disposed with a seal washer, characterized in that, provided is a screw cap spiro union on the tail of the supported joint. The tail of the screw cap protrudes towards the center to form a ring tension sleeve; also provided is a distance sleeve having a circular convex ring shaped on the head. The convex ring of the distance sleeve is blocked between the tension sleeve of the screw cap and the tail of the supported joint, while the tail of the distance sleeve protrudes outside of the tension sleeve of the screw cap. Provided is a inner shoulder on the head of the endopore of the distance sleeve, while on the tail end face of the supported joint is arranged with a annular packing. On the head of the pipe nipple or an air intake to be connected is disposed with a collar flange cambered outwards along the radial direction. The collar flange is limited between the inner shoulder of the distance sleeve and the annular packing forming the sealing with the annular packing, whereas the pipe nipple or the tail of the air intake to be connected protrudes outside of the distance sleeve from the endopore of the distance sleeve. The invention has the advantages of good tightness, long service life and heat insulation.
Description
Technical field
The present invention relates to be used for the gas kitchen pipe joint at gas appliance product fuel gas inlet places such as gas cooker.
Background technique
Usually be connected by rubber or plastic flexible pipe (following general designation sebific duct) between gas appliances such as existing gas cooker and gas can or the gas pipeline, and generally be connected between sebific duct and the gas appliance by pipe joint.The structure of pipe joint is varied, disclose a kind of " improving the gas cooker hose coupling of structure " such as Chinese patent 00213732.1, it comprises the structure bend pipe that has sour jujube ditch and protruding circle, also comprise the elbow seat that has the nut end pipe, the elbow seat of nut end pipe links to each other with gas cooker by screw thread, there is circular seal ring the protruding circle of joint bend pipe and the junction of elbow seat, the end that the elbow seat combines with the joint bend pipe has circular sealing edge, and sealing has packing ring along the protruding circle junction with the joint bend pipe.Find in actual the use that still there is the problem of gas leakage in existing pipe joint on the market.The accident that gas leakage caused is by analysis found, though the gas leakage accident that is caused because of sebific duct and pipe joint problem is lower than the gas leakage accident that is caused because of reduction valve and valve body problem, also be lower than the gas leakage accident that problem caused that can not determine concrete leakage cause, but still accounted for nearly 20% ratio, thereby necessary pipe joint is improved.Sebific duct and the gas leakage of pipe joint place generally are chronic little leakages, have characteristics subtle and that find, stay accident potential easily.Present house decoration, the sealing of kitchen cabinet is relatively good usually.This is for built-in type cooker, and the combustion gas that may cause revealing is caused danger in the cabinet inner accumulated, even because of reaching the explosion limit accident of blasting.Analyse in depth the gas leakage accident that is caused because of pipe joint and sebific duct problem again, find that the gas leakage point of considerable part occurs in the joint of sebific duct and pipe joint.The reason that the joint of sebific duct and pipe joint becomes easy leak source then is: 1, the sealing configuration of sebific duct and pipe joint joint is not ideal enough, causes being easy to generate poorly sealed defective in installation and using process, thereby causes gas leakage; 2, except the gas leakage that sealing configuration itself causes, be the problem that after using a period of time, leaks air again in addition greatly, and cause the main cause that this phenomenon takes place to be the aging of sebific duct, and sebific duct is aging closely related with the structure of pipe joint.Its reason is that pipe joint is very near apart from gas appliance usually, and temperature is higher, and sebific duct directly links to each other with the pipe joint of metal quality, easy of the accelerated ageing of being heated for a long time, the hardening embrittlement, even cracking phenomena takes place, thereby cause gas leakage, thereby year promptly need change No. one time sebific duct half a year to one.
Summary of the invention
Technical problem to be solved by this invention is to provide at the prior art present situation a kind of gas kitchen pipe joint of good seal.
For solving the problems of the technologies described above, the present invention adopts following technical proposals:
This gas kitchen pipe joint, it has the head of accepting of hollow, the head of accepting head is provided with and is used for the threaded coupling that is connected with the suction port of gas appliance, the interior shoulder place of threaded coupling is provided with seal washer, it is characterized in that the described afterbody of accepting head has nut by external thread bolt connection, the afterbody of nut protrudes out and is formed with the ring-type cranse to the center; Also have head and form the separation sleeve of the protruding circle of ring-type, the protruding circle of separation sleeve is stuck in the cranse of nut and accepts between the afterbody of head, and the afterbody of separation sleeve then stretches out outside the cranse of nut; The head of the endoporus of separation sleeve forms interior shoulder, and the tail end face place of accepting head then is provided with cyclic sealing gasket; Pipe nipple or wait that the head that taps into the gas flexible pipe is provided with the radially collar flange of evagination, collar flange then is limited between the interior shoulder of separation sleeve and the cyclic sealing gasket and with cyclic sealing gasket and forms sealing, and the afterbody that pipe nipple or wait the taps into the gas flexible pipe then endoporus of self-isolation cover stretches out outside separation sleeve.
Described accept the head the tail end end face on have circular groove, described cyclic sealing gasket promptly is inlaid in this circular groove.The advantage that cyclic sealing gasket is inlaid in this circular groove has two: 1, can effectively avoid cyclic sealing gasket because of relatively rotating the twisted shape torsional deformation to take place when mounted and in the using process thereafter, thereby improves sealing effect; 2, can make it when being subjected to waiting to tap into the pressure of gas flexible pipe or pipe nipple, be unlikely to radially to be out of shape, thereby help increasing sealing load to the center because of being squeezed.
Described air induction hose is a corrugated stainless steel tubing, and forms the ring-type convex tendon of the reentrant part that can snap on the corrugated stainless steel tubing outer wall on the described separation sleeve.
The afterbody of described pipe nipple is provided with the cucurbit mouth of being convenient to connect rubber hose.
The described head, nut, pipe nipple accepted made by metallic material.
It is 0.5～1mm that described pipe nipple or wait taps into the length that the head of gas flexible pipe embeds in the described cyclic sealing gasket.
Described separation sleeve is made by thermal-protective material.
Described thermal-protective material is plastics.
The present invention has following beneficial effect:
1, the nut cranse can provide bigger pressure, be enough to make wait to tap into gas flexible pipe or pipe nipple and be located at and accept end to end that the cyclic sealing gasket of portion forms good sealing, especially cyclic sealing gasket is inlaid in the situation in the circular groove, can make and wait that the end that taps into gas flexible pipe or pipe nipple embeds cyclic sealing gasket, thereby sealing effect is greatly improved; 2, adopt corrugated stainless steel tubing to have the advantage that To Be Protected from Heat, can not wear out, prolong working life greatly, reaches 4～6 times of existing common product; 3, separation sleeve adopts thermal-protective material to make, and air induction hose to be connect or pipe nipple are enclosed within the separation sleeve, and head only contacts with the cyclic sealing gasket that is thermal-protective material (rubber) making equally, thereby having completely cut off contacting between the metal parts of air induction hose to be connect or pipe nipple and pipe joint fully, the heat transfer that can effectively prevent gas appliance is on air induction hose or pipe nipple to be connect.This is for the situation that adopts corrugated stainless steel tubing, act on lessly relatively, but for adopting pipe nipple to add the situation of rubber hose, then can effectively protect the rubber hose that is connected on the pipe nipple cucurbit mouth, significantly prolongs its working life, the generation of minimizing gas leak phenomenon.4, assembling is very easy to.5, for the situation that adopts corrugated stainless steel tubing, show through practical probation and accelerated aging test: the probability that gas leakage takes place at combustion gas input hose union place has been reduced to 17.42% of existing common product.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the embodiment of the invention one;
Fig. 2 is the sectional structure schematic representation of the embodiment of the invention two;
Fig. 3 is the sectional structure schematic representation of the embodiment of the invention three.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one
As schematically shown in Figure 1, be a preferred embodiment of the present invention.As shown in the figure, the present embodiment gas kitchen pipe joint, it 3 etc. is made of accepting of nut 1, separation sleeve 2 and hollow.Wherein, a nut 1 and accept 3 and be metal material, separation sleeve 2 then is a plastic material.Accepting a head of 3 is provided with and is used for the threaded coupling 301 that is connected with the suction port of gas appliance, the interior shoulder place of threaded coupling 301 is provided with seal washer 4, accept an afterbody of 3 by external thread bolt connection nut 1, the afterbody of nut 1 protrudes out and is formed with ring-type cranse 101 to the center.The head of separation sleeve 2 forms the protruding circle 201 of ring-type, and protruding circle 201 is stuck in the cranse 101 of nut 1 and accepts between 3 the afterbody, and the afterbody of separation sleeve 2 then stretches out outside the cranse 101 of nut 1.Shoulder 202 in the head of the endoporus of separation sleeve 2 forms is accepted on 3 the tail end end face and is had circular groove, is embedded with cyclic sealing gasket 5 in the circular groove.The head of corrugated stainless steel tubing 6 to be connect is provided with the radially collar flange 601 of evagination, collar flange 601 is limited between the interior shoulder 202 and cyclic sealing gasket 5 of separation sleeve 2, and it is 1mm and form sealing with annular seal 5 pads that the head of collar flange 601 embeds length in the cyclic sealing gasket 5, and the afterbody of the corrugated stainless steel tubing 6 then endoporus of self-isolation cover 2 stretches out outside separation sleeve 2.In addition, also form the ring-type convex tendon 203 that can snap in the reentrant part on corrugated stainless steel tubing 6 outer walls on the separation sleeve 2.
Embodiment two
As shown in Figure 2, the difference of gas kitchen pipe joint is among present embodiment gas kitchen pipe joint and the embodiment one, accepts on 3 tail end face and does not offer above-mentioned circular groove, but form a step that is used to install cyclic sealing gasket 5.
Embodiment three
As shown in Figure 3, be another preferred embodiment of the present invention.As shown in the figure, the present embodiment gas kitchen pipe joint, it 3 etc. is made of accepting of nut 1, separation sleeve 2, pipe nipple 7 and hollow.Wherein, pipe nipple 7, a nut 1 and accept 3 and be metal material, separation sleeve 2 then is a plastic material.Accepting a head of 3 is provided with and is used for the threaded coupling 301 that is connected with the suction port of gas appliance, the interior shoulder place of threaded coupling 301 is provided with seal washer 4, accept an afterbody of 3 by external thread bolt connection nut 1, the afterbody of nut 1 protrudes out and is formed with ring-type cranse 101 to the center.The head of separation sleeve 2 forms the protruding circle 201 of ring-type, and protruding circle 201 is stuck in the cranse 101 of nut 1 and accepts between 3 the afterbody, and the afterbody of separation sleeve 2 then stretches out outside the cranse 101 of nut 1.Shoulder 202 in the head of the endoporus of separation sleeve 2 forms is accepted on 3 the tail end end face and is had circular groove, is embedded with cyclic sealing gasket 5 in the circular groove.The head of pipe nipple 7 is provided with the radially collar flange 701 of evagination, collar flange 701 is limited between the interior shoulder 202 and cyclic sealing gasket 5 of separation sleeve 2, and it is 0.5mm and form sealing with annular seal 5 pads that the head of collar flange 701 embeds length in the cyclic sealing gasket 5, and the endoporus of the afterbody self-isolation cover 2 of pipe nipple 7 stretches out outside separation sleeve 2 and is provided with the cucurbit mouth 702 of being convenient to connect rubber hose 8.
Claims (8)
1, a kind of gas kitchen pipe joint, it has the head of accepting of hollow, the head of accepting head is provided with and is used for the threaded coupling that is connected with the suction port of gas appliance, the interior shoulder place of threaded coupling is provided with seal washer, it is characterized in that the described afterbody of accepting head has nut by external thread bolt connection, the afterbody of nut protrudes out and is formed with the ring-type cranse to the center; Also have head and form the separation sleeve of the protruding circle of ring-type, the protruding circle of separation sleeve is stuck in the cranse of nut and accepts between the afterbody of head, and the afterbody of separation sleeve then stretches out outside the cranse of nut; The head of the endoporus of separation sleeve forms interior shoulder, and the tail end face place of accepting head then is provided with cyclic sealing gasket; Pipe nipple or wait that the head that taps into the gas flexible pipe is provided with the radially collar flange of evagination, collar flange then is limited between the interior shoulder of separation sleeve and the cyclic sealing gasket and with cyclic sealing gasket and forms sealing, and the afterbody that pipe nipple or wait the taps into the gas flexible pipe then endoporus of self-isolation cover stretches out outside separation sleeve.
2, gas kitchen pipe joint according to claim 1, it is characterized in that described accept the head the tail end end face on have circular groove, described cyclic sealing gasket promptly is inlaid in this circular groove.
3, gas kitchen pipe joint according to claim 1 and 2 is characterized in that described air induction hose is a corrugated stainless steel tubing, and forms the ring-type convex tendon of the reentrant part that can snap on the corrugated stainless steel tubing outer wall on the described separation sleeve.
4, gas kitchen pipe joint according to claim 1 and 2 is characterized in that the afterbody of described pipe nipple is provided with the cucurbit mouth of being convenient to connect rubber hose.
5, gas kitchen pipe joint according to claim 1 and 2 is characterized in that the described head, nut, pipe nipple accepted made by metallic material.
6, gas kitchen pipe joint according to claim 1 and 2, the length that the head that it is characterized in that described pipe nipple or wait to tap into the gas flexible pipe embeds in the described cyclic sealing gasket is 0.5～1mm.
7, gas kitchen pipe joint according to claim 1 and 2 is characterized in that described separation sleeve made by thermal-protective material.
8, gas kitchen pipe joint according to claim 7 is characterized in that described thermal-protective material is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100528304A CN1908495A (en) | 2006-08-08 | 2006-08-08 | Gas kitchen pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100528304A CN1908495A (en) | 2006-08-08 | 2006-08-08 | Gas kitchen pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1908495A true CN1908495A (en) | 2007-02-07 |
Family
ID=37699675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100528304A Pending CN1908495A (en) | 2006-08-08 | 2006-08-08 | Gas kitchen pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1908495A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691703A (en) * | 2012-06-07 | 2012-09-26 | 江苏瀚深水业科技发展有限公司 | End face impaction type hoop |
| CN104654010A (en) * | 2015-03-02 | 2015-05-27 | 刘书雄 | External connection pipe of gas tank |
| CN105091262A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved structure based on ventilation equipment detection port |
| CN105091263A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved detection opening structure based on leak tightness improvement |
| CN105465521A (en) * | 2015-12-22 | 2016-04-06 | 航天晨光股份有限公司 | Corrugated metal hose quick coupler for gas transmission |
| TWI743973B (en) * | 2020-09-01 | 2021-10-21 | 商佑企業股份有限公司 | Connecting pipeline device and detachable pipe joint module |
-
2006
- 2006-08-08 CN CNA2006100528304A patent/CN1908495A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691703A (en) * | 2012-06-07 | 2012-09-26 | 江苏瀚深水业科技发展有限公司 | End face impaction type hoop |
| CN104654010A (en) * | 2015-03-02 | 2015-05-27 | 刘书雄 | External connection pipe of gas tank |
| CN105091262A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved structure based on ventilation equipment detection port |
| CN105091263A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved detection opening structure based on leak tightness improvement |
| CN105091263B (en) * | 2015-08-31 | 2017-10-13 | 成都欧林生物科技股份有限公司 | Based on the detection mouth improved structure for improving sealing |
| CN105465521A (en) * | 2015-12-22 | 2016-04-06 | 航天晨光股份有限公司 | Corrugated metal hose quick coupler for gas transmission |
| TWI743973B (en) * | 2020-09-01 | 2021-10-21 | 商佑企業股份有限公司 | Connecting pipeline device and detachable pipe joint module |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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