CN201434171Y - Direct push connecting pipe joint - Google Patents
Direct push connecting pipe joint Download PDFInfo
- Publication number
- CN201434171Y CN201434171Y CN200920057787XU CN200920057787U CN201434171Y CN 201434171 Y CN201434171 Y CN 201434171Y CN 200920057787X U CN200920057787X U CN 200920057787XU CN 200920057787 U CN200920057787 U CN 200920057787U CN 201434171 Y CN201434171 Y CN 201434171Y
- Authority
- CN
- China
- Prior art keywords
- hole
- connected tube
- snap ring
- groove
- connecting 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.)
- Expired - Lifetime
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 241001503991 Consolida Species 0.000 abstract 3
- 241000784303 Ochrosia compta Species 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 241001133184 Colletotrichum agaves Species 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a direct push connecting pipe joint, comprising a joint body (3) which is provided with a through hole (2) in which a connected pipe (1) can be inserted. The through holeis internally provided with a sealing rubber ring (5) which forms water seal with the pipe body of the connected pipe; the two ends of the through hole (2) are provided stepped holes with bigger innerports and smaller outer ports, wherein each small hole at the outer port is a seal section (6) the inside diameter of which is adaptive to the outside diameter of the connected pipe, each inner bigger hole inside is a bugle hole (7) with the bigger opening facing inwards, and a gap is formed between the inner wall of the bugle hole and the connected pipe; the sealing rubber ring (5) is installedin the innermost end of the gap; an elastic opening snap ring (8) is also arranged in the gap; and an annular snap ring groove (9) which corresponds to the elastic opening snap ring is arranged outside the connected pipe (1). In the utility model, a groove in the joint body of the direct push connecting pipe is directly arranged on the inner wall of the bugle hole so that the condition that the joint body generates very large curvature change within a rather small length can be avoided. The joint body can be made by adopting one-step profile modeling of a cold expansion tube, thereby the raw materials are saved, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of pipe joint, especially relates to a kind of directly-pushing connecting pipe joint.
Background technique
Pipeline connects general by pipe joint, and general connected tube and joint also have the linkage structure that adopts the internal tooth slotted collar by being threaded.Employing elastic opening snap ring that also has and conical surface combination directly push away linkage structure, connected tube can push and plug directly into that joint body connects, but is subject to the conical surface and elastic opening snap ring and can not extracts.
Existing a kind of pipe joint, comprise joint body with the through hole that can supply the connected tube insertion, have groove in the through hole O-ring seal that constitutes water-stop with the connected tube pipe shaft is housed, the through hole two ends are provided with big mouth bellmouth orifice inwardly, form the space between bellmouth orifice inwall and the connected tube, shooting property slotted collar in the space; Connected tube has the circumferential clasp groove corresponding to the elastic opening snap ring outward.When connected tube inserts like this elastic opening snap ring top spreading is inserted in the circumferential clasp groove, wedging when connected tube is pulled out and can not extracting.
This scheme has following deficiency:
At first, because the groove of O-ring seal is installed to be out on the through-hole wall of joint body, and have between the inner terminal of bellmouth orifice at interval, referring to Fig. 1, so just make the manufacturing of joint body produce many problems: if adopt the car product, and get on the bus at joint body with lathe and to make groove and bellmouth orifice, then the wall thickness of joint body will increase greatly, cost of material and processing cost can rise about about 4 times, and pipe joint will be produced in enormous quantities.
They are two years old, make joint body if adopt pattern cold expanding pipe legal system, then because the interval between O-ring seal groove and the bellmouth orifice generally is very little (big and waste material), big curvature changing is very difficult will to allow joint body produce so in very short length, can only secondary pattern cold expanding pipe, increased processing cost equally.
In addition, the width of O-ring seal groove forms and has relatively high expectations, because if recess width is wideer than O-ring seal, O-ring seal can be taken out of easily when connected tube inserts, if recess width is narrower than O-ring seal, then limited the distortion of seal ring and shortened the seal ring life-span easily, and the life-span of this joint is by the decision of life-span of seal ring.
Be exactly in addition, the last closing in always of the big end of the bellmouth orifice on the joint body, to excessively be connected with the through hole of the external diameter of adaptive connected tube after closing up, adopting what method to form all can not meet at right angles, especially the pipe method that rises is necessarily to have excessive circular arc, sometimes excessively the radius of circular arc is also not little, when the radius of excessive circular arc during greater than the middle footpath of the most frequently used round and elastic slotted collar, in the time of can take place inserting connected tube with the elastic opening snap ring by dieback in the excessive circular arc position that the big end of bellmouth orifice closes up and can not spreading (referring to Fig. 2), even the distortion of elastic opening snap ring top, connected tube is inserted the situation of not advancing not connect.
The model utility content
First purpose of the present utility model, just to provide a kind of conservation greatly and processing cost, O-ring seal also be the joint body long service life and can not take place because the elastic opening snap ring can not be made connected tube insert the directly-pushing connecting pipe joint that does not advance to be connected the endless sentiments condition by spreading by dieback.
Above-mentioned purpose of the present utility model realizes by following technological scheme:
A kind of directly-pushing connecting pipe joint, comprise joint body with the through hole that can supply the connected tube insertion, the O-ring seal that constitutes water-stop with the connected tube pipe shaft is housed in the through hole, it is characterized in that: described through hole two ends are interior big outer little shoulder hole, outside port aperture is the section of sealing, its internal diameter adapts to the connected tube external diameter, the macropore of the inside is a big mouth bellmouth orifice inwardly, form the space between bellmouth orifice inwall and the connected tube, described O-ring seal promptly is installed in the inner terminal in space, shooting property slotted collar also in the space; Described connected tube has the circumferential clasp groove corresponding to the elastic opening snap ring outward.
On the basis of the above, the utility model also has following various modification:
The cross section of described O-ring seal bar is for circular or be that the interior outer arc of cambered outwards arc surrounds by the adaptive bellmouth orifice inwall of outer arc, inner arc, and the internal diameter of O-ring seal (5) is less than connected tube (1) external diameter, so that constitute water-stop with connected tube.
Described O-ring seal (5) is installed in the groove interior (10) of the adaptive O-ring seal of being opened on the wall of bellmouth orifice (7) inner end (5).
The middle footpath of described elastic opening snap ring (8) is greater than the external diameter of connected tube, described circumferential clasp groove (9) cross section be groove depth less than elastic opening snap ring (8) cross section half, the upper end, both sides has the groove of circular arc chamfering, makes things convenient for elastic opening snap ring (8) to stick into or be ejected groove (9).
Be useful on the positioning step of connected tube location in the middle of the described through hole (2).
On the basis of the above, another purpose of the present utility model is to realize the replacing and the dismounting of connected tube, and for this reason, the utility model can be done further improvement:
In the described shoulder hole, also be provided with tube drawing top tube (11) outside the elastic opening snap ring (8), leave gap (12) between the described shoulder hole port aperture section of sealing (6) internal diameter and the connected tube external diameter, inwardly pull pipe top tube so that unlocking tool inserts.
The chamfering of the inner osculum of described bellmouth orifice should be less than half of elastic opening snap ring 8 cross sections.
Described joint body is joints such as straight-through, elbow, threeway or four-way.
Compared with prior art, because the groove in this pipe joint joint body is directly opened on the bellmouth orifice inner end wall, avoided producing excessive curvature changing at very short length spigot body, can adopt a pattern cold expanding pipe to make, save raw material and reduced cost, and, will not take place to be inserted the situation of not advancing not connect by the spreading connected tube by dieback because be O-ring seal after the elastic opening snap ring.Semi-open O-ring seal groove is processed to form conveniently, does not influence the working life of O-ring seal.
Description of drawings
Fig. 1 is immediate prior art pipe joint structure cross-sectional schematic;
Fig. 2 is the pipe joint connected tube of Fig. 1 cross-sectional schematic with snap ring dieback situation when inserting;
Fig. 3 is the utility model embodiment one a structure cross-sectional schematic;
Fig. 4 is the utility model embodiment two a structure cross-sectional schematic;
Fig. 5 is the O-ring seal cross-sectional schematic of Fig. 4;
Fig. 6 is the utility model embodiment two a structure cross-sectional schematic;
Fig. 7 is the utility model embodiment three a structure cross-sectional schematic;
Fig. 8 is the utility model embodiment four a structure cross-sectional schematic.
Among the figure: 1-connected tube, 2-through hole, 3-joint body, 4-O-ring seal groove, 5-O-ring seal, the 6-section of sealing, the 7-bellmouth orifice, 8-elastic opening snap ring, 9-circumferential clasp groove, 10-positioning step, 11-tube drawing top tube, the 12-gap, the interval between 13-groove and the bellmouth orifice, the big end of the 14-bellmouth orifice excessive circular arc that closes up.
Embodiment
Be illustrated in figure 1 as immediate prior art constructions cross-sectional schematic, have at interval 13 between the O-ring seal groove in the joint body through hole and the inner terminal of bellmouth orifice, form it then or material walls will be thick or want secondary to rise and manage the processing charges rising.
In addition, referring to Fig. 2, when it inserts for pipe joint connected tube of Fig. 1 with the signal of analysing and observe of snap ring dieback situation, close up always owing to the big end that connects bellmouth orifice is last, to excessively be connected with the through hole of the external diameter of adaptive connected tube after closing up and be necessarily to have excessive circular arc, when the radius of excessive circular arc during greater than the middle footpath of round and elastic slotted collar, in the time of can take place inserting connected tube with the elastic opening snap ring by dieback in the excessive circular arc position that the big end of bellmouth orifice closes up and can not spreading, connected tube is inserted the situation of not advancing not connect.
As shown in Figure 2, pipe joint embodiment one of the present utility model, comprise joint body 3 with the through hole 2 that can supply connected tube 1 insertion, the O-ring seal 5 that constitutes water-stop with the connected tube pipe shaft is housed in the through hole 2, the internal diameter of O-ring seal 5 is less than connected tube 1 external diameter, so that constitute water-stop with connected tube.
Be useful on the positioning step of connected tube location in the middle of the through hole 2, through hole 2 two ends are interior big outer little shoulder hole, outside port aperture is the section of sealing 6, its internal diameter adapts to connected tube 1 external diameter, the macropore of the inside is a big mouth bellmouth orifice 7 inwardly, form the space between bellmouth orifice 7 inwalls and the connected tube 1, O-ring seal 5 promptly is installed in the inner terminal in space, shooting property slotted collar 8 also in the space, open elastic opening snap ring top when making things convenient for connected tube to insert greater than the external diameter of connected tube in the middle footpath of elastic opening snap ring 8.
The cross section of this routine elastic opening snap ring 8 is circular, and the cross section of circumferential clasp groove 9 is a groove depth less than half arc groove of elastic opening snap ring cross section, extracts connected tube after conveniently having instrument that the elastic opening snap ring is ejected from the circumferential clasp groove.
The axial section in space is a wedge-like space, and so, when connected tube was inserted joint body, bigger space inside the wedge-like space, elastic opening snap ring 8 quilt top can be inserted in the circumferential clasp groove 9 outside the connected tube 1 by spreading.And when extracting connected tube 1, elastic opening snap ring 8 to the point place in wedge-like space, can not be pulled out it by the wedging connected tube by band from joint body.
Figure 3 shows that embodiment's two of the present utility model sectional view, be that with example one difference the cross section of described O-ring seal bar is is that the interior outer arc of cambered outwards arc surrounds (referring to Fig. 4) by the adaptive bellmouth orifice inwall of outer arc, inner arc.
Embodiment three shown in Figure 5, be that with example one difference described O-ring seal 5 is installed in the groove 4 of the adaptive O-ring seal of being opened on the bellmouth orifice 7 inner end walls 5, so avoided in very short length, will allowing joint body produce so big curvature changing, can adopt a pattern cold expanding pipe to make joint body, save raw material and reduced cost.
Embodiment four shown in Figure 6, be among the described through hole 2 two ends shoulder holes bellmouth orifice 7 inside with example three differences, also be provided with tube drawing top tube 11 outside the elastic opening snap ring 8, leave gap 12 between the through hole 2 port aperture section of sealing internal diameters and the connected tube external diameter, convenient 12 stretch into from the gap with instrument, tube drawing top tube 11 is inwardly pushed up, elastic opening snap ring 8 is ejected the top behind bigger space, the inside, wedge-like space, connected tube 1 can be extracted out in joint body 3 from circumferential clasp groove 9, referring to Fig. 6.
Above-mentioned joint body is all straight coupling, but can be used for angle coupling or threeway, cross fitting fully.
Claims (6)
1, a kind of directly-pushing connecting pipe joint, comprise joint body (3) with the through hole (2) that can supply connected tube (1) insertion, the O-ring seal (5) that constitutes water-stop with the connected tube pipe shaft is housed in the through hole, it is characterized in that: described through hole (2) two ends are interior big outer little shoulder hole, outside port aperture is the section of sealing (6), its internal diameter adapts to the connected tube external diameter, the macropore of the inside is a big mouth bellmouth orifice (7) inwardly, form the space between bellmouth orifice inwall and the connected tube, described O-ring seal (5) promptly is installed in the inner terminal in space, shooting property slotted collar (8) also in the space; The outer circumferential clasp groove (9) that has corresponding to the elastic opening snap ring of described connected tube (1).
2, directly-pushing connecting pipe joint according to claim 1, it is characterized in that: the cross section of described O-ring seal bar is for circular or be that the interior outer arc of cambered outwards arc surrounds by the adaptive bellmouth orifice inwall of outer arc, inner arc, the internal diameter of O-ring seal (5) is less than connected tube (1) external diameter, so that constitute water-stop with connected tube.
3, directly-pushing connecting pipe joint according to claim 2 is characterized in that: described O-ring seal (5) is installed in the groove interior (4) of the adaptive O-ring seal of being opened on the wall of bellmouth orifice (7) inner end (5).
4, according to claim 1 or 2 or 3 described directly-pushing connecting pipe joints, it is characterized in that: the middle footpath of described elastic opening snap ring (8) is greater than the external diameter of connected tube, described circumferential clasp groove (9) cross section be groove depth less than elastic opening snap ring (8) cross section half, the upper end, both sides has the groove of circular arc chamfering, makes things convenient for elastic opening snap ring (8) to stick into or be ejected groove (9).
5, directly-pushing connecting pipe joint according to claim 4, it is characterized in that: in the described shoulder hole, also be provided with tube drawing top tube (11) outside the elastic opening snap ring (8), leave gap (12) between the described shoulder hole port aperture section of sealing (6) internal diameter and the connected tube external diameter, so that unlocking tool inserts.
6, directly-pushing connecting pipe joint according to claim 5 is characterized in that: the positioning step that is useful on the connected tube location in the middle of the described through hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920057787XU CN201434171Y (en) | 2009-06-03 | 2009-06-03 | Direct push connecting pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920057787XU CN201434171Y (en) | 2009-06-03 | 2009-06-03 | Direct push connecting pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434171Y true CN201434171Y (en) | 2010-03-31 |
Family
ID=42052979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920057787XU Expired - Lifetime CN201434171Y (en) | 2009-06-03 | 2009-06-03 | Direct push connecting pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434171Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148637A1 (en) * | 2009-06-23 | 2010-12-29 | Wu Jingling | Connector for straight push connecting pipes |
| GB2482706A (en) * | 2010-08-12 | 2012-02-15 | Ming-Yi Lee | Releasable nut-free C-clip secured pipe fitting |
| CN106322010A (en) * | 2016-10-24 | 2017-01-11 | 深圳建康管道科技有限公司 | Spiral telescopic connection pipe connection piece |
-
2009
- 2009-06-03 CN CN200920057787XU patent/CN201434171Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148637A1 (en) * | 2009-06-23 | 2010-12-29 | Wu Jingling | Connector for straight push connecting pipes |
| GB2482706A (en) * | 2010-08-12 | 2012-02-15 | Ming-Yi Lee | Releasable nut-free C-clip secured pipe fitting |
| GB2482706B (en) * | 2010-08-12 | 2012-12-26 | Ming-Yi Lee | Releasable nut-free c-clip secured pipe fitting |
| CN106322010A (en) * | 2016-10-24 | 2017-01-11 | 深圳建康管道科技有限公司 | Spiral telescopic connection pipe connection piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN CITYLINK WORLDPIPE CO., LTD. Free format text: FORMER OWNER: WU JINGLING Effective date: 20130124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510100 GUANGZHOU, GUANGDONG PROVINCE TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130124 Address after: Changping Zhen Shu Village 523000 Guangdong city of Dongguan Province Patentee after: Dongguan City Link World Pipe Co.,Ltd. Address before: 1406 room 176, South 510100, Guangzhou, Guangdong, Yuexiu Patentee before: Wu Jingling |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161031 Address after: 528244, two, lane two, Heshun soup Village Development Zone, Lishui Town, Nanhai, Guangdong, Foshan Patentee after: Foshan Yitong union Technology Co Ltd Address before: Changping Zhen Shu Village 523000 Guangdong city of Dongguan Province Patentee before: Dongguan City Link World Pipe Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
|
| CX01 | Expiry of patent term |