CN101294648A - Tube joint - Google Patents
Tube joint Download PDFInfo
- Publication number
- CN101294648A CN101294648A CNA2008100953308A CN200810095330A CN101294648A CN 101294648 A CN101294648 A CN 101294648A CN A2008100953308 A CNA2008100953308 A CN A2008100953308A CN 200810095330 A CN200810095330 A CN 200810095330A CN 101294648 A CN101294648 A CN 101294648A
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- CN
- China
- Prior art keywords
- spigot
- pin
- mentioned
- pipe box
- pipe
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract 4
- 239000010865 sewage Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention provides a pipe joint, which prevents a pair of joint components from separating fiercely due to the pressure in the piping when disassembled, and is operated safely and easily. The pipe joint (1) is composed of an internal joint (10) and a pipe sleeve (20). A pin blocking slot (15) is formed on the periphery surface of the major diameter columnar part (11) of the internal joint (10), so that a fixed pin (25) and a movable pin (27) provided on the internal circumference (23a) of the internal joint inserting hole (23) of the pipe sleeve (20) are blocked in the pin blocking slot (15), the internal joint (10) is inserted in the pipe sleeve (20) along the pin blocking slot (15) at the same time, and the movable pin (27) matches with a matching concave part (16) to form a mounting state. When disassembled, each pin (25, 27) is hooked on the second bending part (15b) in the middle of each pin blocking slot (15), to prevent the internal joint (10) and the pipe sleeve (20) from separating fiercely, and the internal pressure in the piping is released.
Description
Technical field
The present invention relates to be installed in pipe joint front end, that these bodys are releasably coupled together of a pair of body of connection.
Background technique
In the wet type shut-off means that uses the diamond blade that semiconductor and electronic unit etc. is cut off processing, for the heating that suppresses processing stand and remove the smear metal that when cutting off semiconductor etc., produces, on one side and supply with cutting water to processing stand on one side and process.Cutting water is finishing to become waste water after the purposes, and waste water focuses in the sewage treatment equipment by pipe arrangement and handles.The filter that this sewage treatment equipment has the pump that sucks waste water usually and smear metal etc. is filtered.
Because the possibility that mesh stops up will take place so exist in the above-mentioned smear metals of using in sewage treatment equipment of filter traps etc. soon.When filter became the mesh blocked state, the Processing capacity of sewage treatment equipment descended, and therefore every use certain hour will carry out the replacing of filter.At this moment, have the situation that above-mentioned pipe arrangement is disassembled, dismantle pipe arrangement, such means are arranged: in advance pipe arrangement wait the pipe joint that assembling ﹠ disassembling is set midway, pipe joint is unloaded.
The pipe joint of multiple assembling ﹠ disassembling is provided, and the direct insertion joiner of patent documentation 1 also is an example of this type of joint.
Patent documentation 1: Japan opens flat 02-017207 communique in fact
As record in the above-mentioned patent documentation, common pipe joint is the form of on a joint component another joint component being installed releasably.In this type of pipe joint, dismantle if in pipe arrangement, act on having under the pressure status, then because of interior pressure, two joint components can separate fiercely.Therefore, there is the problem that is difficult to carry out field-strip.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of effectively prevent that the pair of joint parts separate fiercely in when dismounting because of the pressure in the pipe arrangement makes, can be safely and the pipe joint that easily carries out field-strip.
The present invention is a kind of pipe joint, and the spigot that its spigot cylindraceous releasably is inserted in the pipe box with spigot patchhole cylindraceous inserts in the hole, it is characterized in that,
On the inner peripheral surface of the spigot patchhole of pipe box, be provided with: to the outstanding fixing pin of radially inner side; And movable pin, it can freely be advanced and retreat with respect to radially inner side from the inner peripheral surface of spigot patchhole, and is become to enter from inner peripheral surface by the application of force by force application part, is provided with the latch-release member that movable pin is kept out of the way from the inner peripheral surface of spigot patchhole in pipe box,
On the other hand, on the outer circumferential face of an end of the inserting side of pipe box, be formed with the pin engagement groove in the conduct of spigot, this pin engagement groove is in the end face upper shed of inserting side, and extend to the other end, fixing pin and movable pin are fastened on respectively in this pin engagement groove
In these pin engagement grooves, be formed with the cooperating recesses that cooperates with movable pin, and between this cooperating recesses and opening, be provided with pin fastening portion fixing pin and movable pin fastening,
In addition, on the front end or outer circumferential face of the inner peripheral surface of pipe box and spigot, be provided with under the state of cooperating recesses that movable pin at pipe box arrives spigot the portion of being close to that liquid each other thickly is close to.
Making pipe joint of the present invention is installment state, operates as following.At first, make the movable pin of pipe box become the state of keeping out of the way from the inner peripheral surface of spigot patchhole, movable pin and fixing pin are inserted into the pin engagement groove and make their engagings from opening respectively by the latch-release member.Then, make each pin when each pin engagement groove enters, the spigot that spigot relatively is inserted into pipe box inserts in the hole.After the movable pin of pipe box arrived the cooperating recesses of spigot, keeping out of the way of the movable pin that end latch-release member is carried out made movable pin cooperate with cooperating recesses.Under this state, the portion of the being close to liquid of pipe box and spigot thickly is close to mutually, finishes the connection of pipe joint.Otherwise, when pipe box unloads spigot, movable pin is kept out of the way from cooperating recesses by the latch-release member, make each pin in each pin engagement groove, make pipe box and spigot relatively away from.At this moment, if residual in pipe arrangement have pressure, then being close to state and removing of pipe box and spigot, the pressure in the pipe arrangement is discharged into outside the pipe arrangement, thus, by the power corresponding with this pressure, spigot and pipe box will be mutually away from.But in the present invention, fixing pin and movable pin are hooked on respectively in the pin fastening portion that is arranged in the pin engagement groove, and spigot can not separate with pipe box.
After pressure in pipe arrangement discharges, remove the state of fastening in each fastening portion of respectively selling, then make each pin along each pin make in engagement groove spigot from pipe box relatively away from, when each pin when the opening of each pin engagement groove comes out, become the state that spigot unloads from pipe box.
According to the present invention, have under the situation that unloads spigot under the pressure status from pipe box when residual in pipe arrangement, because fixing pin and movable pin are hooked in the pin fastening portion temporarily, so pipe box can not separate fiercely with spigot, and the pressure when this once-through operation in the pipe arrangement discharges and becomes normal pressure.Then, next actual spigot during from secondary operation that pipe box is extracted, is carried out under the state of normal pressure exactly.Its result is safely and easily to carry out the field-strip of pipe box and spigot.
As the pin engagement groove of pipe joint of the present invention, can enumerate such mode: from opening roughly behind a side extending circumferentially, through curved part and to the opposite side peripheral side bending of the opposite side of a side peripheral side, this curved part becomes pin fastening portion.In this mode, when being inserted into spigot in the pipe box, each pin arrived pin fastening portion from opening till, the mode that rotates in a circumferential direction to a side with pipe box made that pipe box is relative with spigot to be rotated, next, and after each pin is by each pin fastening portion, to opposite spin.Under this state, the once-through operation of in discharging, pressing and in fact make in spigot and the secondary operation that pipe box separates existence operate the advantage deft, that usability is good.
About pipe joint of the present invention, by fixing pin and movable pin are set in pipe box, and pin engagement groove and pin fastening portion are set on spigot, though will with spigot from pipe box unload, pressure residual in the pipe arrangement discharges, and can prevent that also pipe box and spigot are disposable fiercely separately.Therefore, having can be safely and the effect of easily carrying out the field-strip of pipe box and spigot.
Description of drawings
Fig. 1 is the stereogram of each parts that constitutes the pipe joint of a mode of execution.
Fig. 2 (a) is the side view of the spigot of expression pipe joint, (b) is the plan view from the observed spigot of minor diameter tube portion's side.
Fig. 3 (a) is the plan view from the observed pipe box of spigot patchhole side, (b) is the side view of the pipe box of expression pipe joint.
Fig. 4 is the figure of expression with the action of the pin of spigot when pipe box unloads.
Label declaration
1: pipe joint; 10: spigot; 14:O shape ring (being close to portion); 15: the pin engagement groove; 15b: second curved part (pin fastening portion); 16: cooperating recesses; 20: pipe box; 23: the spigot patchhole; 23a: the inner peripheral surface of spigot patchhole; 24: intermediate hole (being close to portion); 25: fixing pin; 26: elevator mechanism (latch-release member); 27: movable pin 29: spring (force application part).
Embodiment
Fig. 1 is each parts of the expression pipe joint 1 that constitutes a mode of execution and the stereogram of body 2,3.Pipe joint 1 is made of spigot 10 cylindraceous and pipe box 20.The spigot 10 of this pipe joint 1 and pipe box 20 are installed in the front end of each body 2,3, and these bodys 2,3 are releasably coupled together.
At the front end of body 2,3, be separately installed with the joiner 2a, the 3a that form nut 2b, 3b.Spigot 10 has becomes the major diameter tube cylindraceous of matrix portion 11, is formed with screw section 12 cylindraceous coaxially on an axial end of this major diameter tube portion 11.In addition, pipe box 20 has the main body cylindraceous 21 that becomes matrix, is formed with screw section 22 cylindraceous (with reference to Fig. 3) coaxially on an axial end of this main body 21.By screw togather nut 2b, the 3b of joiner 2a, 3a respectively on screw section 12,22, spigot 10 and pipe box 20 are installed in the front end of body 2,3 respectively.In the present embodiment, though use thread type to fix body and pipe joint (spigot 10 and pipe box 20), so long as fixedly the mechanism of body and pipe joint then is not limited to this.
As shown in Figure 2, on the end opposite of spigot 10, be formed with the diameter cylindraceous minor diameter tube portion 13 littler coaxially than major diameter tube portion 11 with major diameter tube portion 11 with screw section 12 sides of major diameter tube portion 11.In spigot 10, be formed with the pipeline 10a of the major diameter tube portion 11 of running through, screw section 12 and minor diameter tube portion 13.Periphery in minor diameter tube portion 13 is equipped with the O shape ring 14 that is formed by elastic members such as rubber in the mode more outstanding slightly than the outer circumferential face of minor diameter tube portion 13.On the periphery of major diameter tube portion 11, the end in minor diameter tube portion 13 sides is formed with pin engagement groove 15, and this sells the end face upper shed of engagement groove 15 in minor diameter tube portion 13 sides, and extends to screw section 12 sides.This sells engagement groove 15, from opening after axially extending shortly, through the first curved part 15a at right angle and roughly along a side extending circumferentially, then through the second curved part 15b and to the opposite side peripheral, oblique extension of the circumferential opposite side of a side.At the terminal part of so tortuous pin engagement groove 15, be formed with the cooperating recesses 16 darker than pin engagement groove 15.
In pipe box 20, be formed with the pipeline 20a that runs through main body 21 and screw section 22 as shown in Figure 3.On the end of main body 21 sides of pipeline 20a, be formed with the diameter spigot patchhole 23 bigger slightly coaxially than the major diameter tube portion 11 of spigot 10 with pipeline 20a.In this spigot patchhole 23, insert spigot 10.In addition, at the intermediate portion of pipeline 20a, be formed with the diameter intermediate hole 24 bigger slightly than the minor diameter tube portion 13 of spigot 10.The diameter of this intermediate hole 24 is set at O shape ring 14 flexibly is close on it.When spigot 10 was inserted in the spigot patchhole 23, the O shape of spigot 10 ring 14 was close on the inner peripheral surface 24a of intermediate hole 24.
On the inner peripheral surface 23a of spigot patchhole 23, be provided with to the outstanding fixing pin 25 of radially inner side.Fixing pin 25 engages with the pin engagement groove 15 of above-mentioned spigot 10, and outstanding to radially inner side with the length that is hooked among the curved part 15a.
At the outer circumferential face of main body 21, be formed with the groove 21a that extends in the axial direction.Be embedded with elevator mechanism 26 in this groove 21a, the front end in spigot patchhole 23 sides of elevator mechanism 26 is provided with movable pin 27.This movable pin 27 can be inserted among the hole 21c that runs through groove 21a and spigot patchhole 23 with respect to spigot patchhole 23 with freely advancing and retreat.Elevator mechanism 26 is supported in the groove 21a swingably by fixed block 28, and this fixed block 28 is applied in a pair of fixed block groove 21b that forms on the outer circumferential face of main body 21.Between the bottom of this elevator mechanism 26 and the fore side end 26a opposite side of movable pin 27 sides and groove 21a, be embedded with spring 29.The fore side end 26a of elevator mechanism 26, is pressed into the movable pin 27 of opposition side thereby serve as axle with fixed block 28 to the radial outside application of force by this spring 29 to radially inner side.Thus, movable pin 27 is always outstanding from the inner peripheral surface 23a of spigot patchhole 23.Power by overcoming spring 29 is pushed the fore side end 26a of elevator mechanism 26 to radially inner side, movable pin 27 is kept out of the way to radial outside from the inner peripheral surface 23a of spigot patchhole 23.At this moment, movable pin 27 is also not exclusively kept out of the way from inner peripheral surface 23a, and is in the state more outstanding slightly than inner peripheral surface 23a.
Shown in Fig. 3 b, in the present embodiment, on the inner peripheral surface 23a of spigot patchhole 23, be provided with a movable pin 27 and two fixing pins 25 with equal intervals.With spigot 10 when pipe box 20 unloads, as long as any in fixing pin 25 or the movable pin 27 is hooked among the curved part 15a, so if each quantity of selling be one or more than, be provided with then that several all it doesn't matter.
Below, the effect of the pipe joint 1 of present embodiment is described.Spigot 10 and pipe box 20 to be coupled together, at first, the fore side end 26a of elevator mechanism 26 be pushed to radially inner side, movable pin 27 is kept out of the way from the inner peripheral surface 23a of spigot patchhole 23.Then, fixing pin 25 is entered along pin engagement groove 15, and spigot 10 and pipe box 20 are being rotated on the direction of pin engagement groove 15, spigot 10 is inserted in the spigot patchhole 23 of pipe box 20 simultaneously.Have again, in this way, remove the power of pushing elevator mechanism 26, make movable pin 27 also along pin engagement groove 15.When the movable pin 27 of pipe box 20 arrived the cooperating recesses 16 of spigot 10, movable pin 27 cooperated with cooperating recesses 16.When becoming this state, the O shape of spigot 10 is encircled on the inner peripheral surface 24a of intermediate hole 24 that 14 elasticity and liquid thickly is close to pipe box 20, thereby finishes the connection of pipe joint 1.
Otherwise, when pipe box 20 unloads spigot 10, radially pushing the fore side end 26a of elevator mechanism 26, movable pin 27 is kept out of the way from cooperating recesses 16 once more, make respectively sell 25,27 along each the pin engagement groove 15 direction on rotating, make simultaneously pipe box 20 and spigot 10 relatively away from.At this moment, if residual in pipe arrangement have pressure, then being close to state and removing of pipe box 20 and spigot 10, the pressure in the pipe arrangement is discharged into outside the pipe arrangement, and thus, by the power corresponding with this pressure, spigot 10 and pipe box 20 are disconnected from each other.But in the present invention, fixing pin 25 and movable pin 27 are hooked on the second curved part 15b place that is arranged in the pin engagement groove 15 respectively, and spigot 10 can not separate with pipe box 20.After the pressure in the pipe arrangement discharges, remove each and sell the state that is hooked on the second curved part 15b, then make each pin along each pin make in engagement groove 15 spigot 10 from pipe box 20 relatively away from, when each pin 25,27 opening from each engagement groove 15 comes out, become the state that spigot 10 unloads from pipe box 20.
According to the present invention, when desire in pipe arrangement residual have under the pressure status unload under the situation of spigot 10 from pipe box 20, because fixing pin 25 and movable pin 27 are hooked on the second curved part 15b temporarily, therefore pipe box 20 can not separate fiercely with spigot 10, pressure in the pipe arrangement is discharged and becomes normal pressure.And, in ensuing reality spigot 10 during from secondary operation that pipe box 20 is extracted, is carried out under the state of normal pressure exactly.Its result is, can be safely and easily carry out the field-strip of pipe box 20 and spigot 10.
Claims (2)
1. pipe joint, the above-mentioned spigot that its spigot cylindraceous releasably is inserted in the pipe box with spigot patchhole cylindraceous inserts in the hole, it is characterized in that,
On the inner peripheral surface of the above-mentioned spigot patchhole of above-mentioned pipe box, be provided with: to the outstanding fixing pin of radially inner side; And movable pin, it can freely be advanced and retreat with respect to radially inner side from the inner peripheral surface of above-mentioned spigot patchhole, and become by the application of force by force application part and to enter from above-mentioned inner peripheral surface, in pipe box, be provided with the latch-release member that movable pin is kept out of the way from the inner peripheral surface of spigot patchhole
On the other hand, in the conduct of above-mentioned spigot on the outer circumferential face of an end of the inserting side of above-mentioned pipe box, be formed with the pin engagement groove, this pin engagement groove is in the end face upper shed of above-mentioned inserting side, and extend to the other end, said fixing pin and above-mentioned movable pin are fastened on respectively in this pin engagement groove
In these pin engagement grooves, be formed with the cooperating recesses that cooperates with above-mentioned movable pin, and between this cooperating recesses and above-mentioned opening, be provided with pin fastening portion said fixing pin and above-mentioned movable pin fastening,
In addition, on the front end or outer circumferential face of the inner peripheral surface of above-mentioned pipe box and above-mentioned spigot, be respectively equipped with above-mentioned movable pin at pipe box and arrive under the state of above-mentioned cooperating recesses of spigot the portion of being close to that liquid each other thickly is close to.
2. pipe joint according to claim 1 is characterized in that,
Be formed on the above-mentioned pin engagement groove on the above-mentioned spigot, from above-mentioned opening roughly behind a side extending circumferentially, through curved part and to the opposite side peripheral side bending of the opposite side of a side peripheral side, this curved part becomes above-mentioned pin fastening portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-120139 | 2007-04-27 | ||
| JP2007120139A JP4949119B2 (en) | 2007-04-27 | 2007-04-27 | Pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294648A true CN101294648A (en) | 2008-10-29 |
| CN101294648B CN101294648B (en) | 2011-05-18 |
Family
ID=40053285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100953308A Active CN101294648B (en) | 2007-04-27 | 2008-04-25 | Tube joint |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4949119B2 (en) |
| CN (1) | CN101294648B (en) |
| TW (1) | TWI400404B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016876A (en) * | 2011-09-23 | 2013-04-03 | 吴上能 | Quick connector and anti-falling structure thereof |
| WO2013166666A1 (en) * | 2012-05-09 | 2013-11-14 | Ge Wenyu | Slideway-type locking pipe fitting |
| CN105350534A (en) * | 2015-09-24 | 2016-02-24 | 大连大金马基础建设有限公司 | Unilateral connection joint |
| CN105378404A (en) * | 2013-04-18 | 2016-03-02 | 郑辉东 | Tube-fitting structure for pure-water line |
| CN106677108A (en) * | 2017-03-07 | 2017-05-17 | 扬州金威环保科技有限公司 | Butt locking device for connecting dust suction pipe and recycling compartment |
| CN109591772A (en) * | 2018-12-26 | 2019-04-09 | 广东车海洋环保科技有限公司 | A kind of split type carwash rocker arm easy to disassemble |
| CN112378103A (en) * | 2020-11-12 | 2021-02-19 | 唐伟聪 | Water heater heated by geothermal energy |
| CN115750941A (en) * | 2022-11-08 | 2023-03-07 | 江苏大昌燃气设备有限公司 | Gas equipment connection structure |
| TWI835294B (en) * | 2022-09-14 | 2024-03-11 | 黃介信 | Rotary clip connector |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI557354B (en) * | 2014-10-15 | 2016-11-11 | The working fluid output device of the temperature control system | |
| US10359221B2 (en) | 2014-10-15 | 2019-07-23 | Mpi Corporation | Working fluid output device for temperature control system |
| CN113685187B (en) * | 2021-08-16 | 2023-12-01 | 北京市市政一建设工程有限责任公司 | Construction process of small-clear-distance multi-hole undercut tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4839505U (en) * | 1971-09-13 | 1973-05-17 | ||
| DE3703597A1 (en) * | 1987-02-06 | 1988-08-18 | Kloeckner Humboldt Deutz Ag | Coupling device at the point of separation of a removable exhaust line |
| JPH09144970A (en) * | 1995-11-17 | 1997-06-03 | Nichirin:Kk | Instantaneous type self-seal connector |
| JPH1113977A (en) * | 1997-06-23 | 1999-01-22 | Sekiya Zoki Kk | Freely attachable/detachable pipe joint |
| GB2332933B (en) * | 1998-01-05 | 2002-10-09 | Nat Coupling Co Inc | Locking device for undersea hydraulic coupling |
| JP4431267B2 (en) * | 2000-11-16 | 2010-03-10 | 明和工業株式会社 | Steel pipe expansion joint |
| JP2006220084A (en) * | 2005-02-10 | 2006-08-24 | Denso Corp | Joint structure of return pipe for fuel injection device |
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2007
- 2007-04-27 JP JP2007120139A patent/JP4949119B2/en active Active
-
2008
- 2008-02-19 TW TW97105731A patent/TWI400404B/en active
- 2008-04-25 CN CN2008100953308A patent/CN101294648B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016876A (en) * | 2011-09-23 | 2013-04-03 | 吴上能 | Quick connector and anti-falling structure thereof |
| CN103016876B (en) * | 2011-09-23 | 2015-11-18 | 吴上能 | Quick connector and anti-falling structure thereof |
| WO2013166666A1 (en) * | 2012-05-09 | 2013-11-14 | Ge Wenyu | Slideway-type locking pipe fitting |
| CN105378404A (en) * | 2013-04-18 | 2016-03-02 | 郑辉东 | Tube-fitting structure for pure-water line |
| CN105350534A (en) * | 2015-09-24 | 2016-02-24 | 大连大金马基础建设有限公司 | Unilateral connection joint |
| CN106677108A (en) * | 2017-03-07 | 2017-05-17 | 扬州金威环保科技有限公司 | Butt locking device for connecting dust suction pipe and recycling compartment |
| CN109591772A (en) * | 2018-12-26 | 2019-04-09 | 广东车海洋环保科技有限公司 | A kind of split type carwash rocker arm easy to disassemble |
| CN112378103A (en) * | 2020-11-12 | 2021-02-19 | 唐伟聪 | Water heater heated by geothermal energy |
| TWI835294B (en) * | 2022-09-14 | 2024-03-11 | 黃介信 | Rotary clip connector |
| CN115750941A (en) * | 2022-11-08 | 2023-03-07 | 江苏大昌燃气设备有限公司 | Gas equipment connection structure |
| CN115750941B (en) * | 2022-11-08 | 2024-04-19 | 江苏大昌燃气设备有限公司 | Gas equipment connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4949119B2 (en) | 2012-06-06 |
| JP2008275085A (en) | 2008-11-13 |
| CN101294648B (en) | 2011-05-18 |
| TWI400404B (en) | 2013-07-01 |
| TW200844356A (en) | 2008-11-16 |
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