CN103062549B - The directly-pushing connecting pipe joint improved - Google Patents
The directly-pushing connecting pipe joint improved Download PDFInfo
- Publication number
- CN103062549B CN103062549B CN201310047658.3A CN201310047658A CN103062549B CN 103062549 B CN103062549 B CN 103062549B CN 201310047658 A CN201310047658 A CN 201310047658A CN 103062549 B CN103062549 B CN 103062549B
- Authority
- CN
- China
- Prior art keywords
- connected tube
- snap ring
- elastic opening
- opening snap
- bellmouth orifice
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
Abstract
The present invention relates to pipe joint technical field, particularly relate to a kind of directly-pushing connecting pipe joint of improvement, it comprises the joint body with the through hole that can insert for connected tube, through hole one end is interior large outer little shoulder hole, the macropore of inner side is large mouth bellmouth orifice inwardly, space is formed between bellmouth orifice inwall and connected tube, the O-ring seal and elastic opening snap ring that form water-stop with connected tube pipe shaft is had in space, the circumferential clasp groove corresponding to elastic opening snap ring is had outside described connected tube, the internal diameter of described O-ring seal is less than the external diameter of connected tube, the cross section of O-ring seal is set to by the outer arc of adaptive bellmouth orifice inwall by the present invention, the straight line of laminating connected tube tube wall surrounds, even if part O-ring seal falls into circumferential clasp groove, the O-ring seal of other parts still drops on the outer tube wall of connected tube, thus make to keep sealing between O-ring seal and connected tube, enhance the sealability of this connecting tube joint, make its antileaking.
Description
Technical field
The present invention relates to pipe joint technical field, particularly relate to a kind of directly-pushing connecting pipe joint of improvement.
Background technique
Pipeline connection generally passes through pipe joint, general connected tube and joint are threaded connection, also the linkage structure adopting internal tooth slotted collar is had, what the employing elastic opening snap ring also had and the conical surface combined directly pushes away linkage structure, connected tube can directly push and plug into joint body, but is limited to the conical surface and elastic opening snap ring and can not extracts.
Be in the Chinese invention patent of 200910040489.4 in the patent No., disclose a kind of directly-pushing connecting pipe joint, it comprises the joint body with the through hole that can insert for connected tube, through hole forms the O-ring seal of water-stop built with connected tube pipe shaft, through hole two ends are interior large outer little shoulder hole, outside port aperture is sealing section, its internal diameter adapts to connected tube external diameter, the macropore of the inside is large mouth bellmouth orifice inwardly, space is formed between bellmouth orifice inwall and connected tube, namely O-ring seal is arranged on the inner terminal in space, in space, elastic opening snap ring is also housed, the circumferential clasp groove corresponding to elastic opening snap ring is had outside connected tube.Because O-ring seal and elastic opening snap ring are all arranged in bellmouth orifice, avoid and allow joint body that large Curvature varying occurs in very short length, a pattern cold expanding pipe can be adopted to make joint body, save material and reduce cost.
But for technique scheme, when being inserted in joint body by connected tube, if connected tube inserted deeply, O-ring seal dropped in circumferential clasp groove, caused the compression ratio of O-ring seal inadequate, thus easily cause water to spill from bellmouth orifice.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and provide a kind of directly-pushing connecting pipe joint of improvement, it by connected tube tube wall of being fitted the inner side of O-ring seal, thus makes sealability better, antileaking.
The technical solution adopted for the present invention to solve the technical problems is: a kind of directly-pushing connecting pipe joint of improvement, comprise the joint body with the through hole that can insert for connected tube, described through hole one end is interior large outer little shoulder hole, outboard end is young, and hole is sealing section, its internal diameter adapts to connected tube external diameter, the macropore of inner side is large mouth bellmouth orifice inwardly, space is formed between bellmouth orifice inwall and connected tube, the O-ring seal and elastic opening snap ring that form water-stop with connected tube pipe shaft is had in space, described O-ring seal is arranged on the inner terminal in space, described elastic opening snap ring is positioned at the outer end in space, the circumferential clasp groove corresponding to elastic opening snap ring is had outside described connected tube, the cross section of described O-ring seal is by the outer arc of adaptive bellmouth orifice inwall, the straight line of laminating connected tube tube wall surrounds.
Wherein, the cross section of described O-ring seal is " D " font.
As another kind of mode of execution, described O-ring seal is extended with leakproof tail end near one end of bellmouth orifice inner terminal, and the shape of described leakproof tail end is cylindrical.
Wherein, the shape of described elastic opening snap ring is the untight annular that arc length is greater than 3/4 circumference.
Wherein, the cross section of described elastic opening snap ring is circular, and the central diameter of described elastic opening snap ring is greater than the external diameter of connected tube, and described circumferential clasp channel section is the groove that groove depth is less than the half in elastic opening snap ring cross section, upper end, both sides has circular arc chamfering.
Or the cross section of described elastic opening snap ring is surrounded by the inclined-plane of fan-shaped inner arc, adaptive bellmouth orifice outer end inner wall.
Further, the positioning step for locating connected tube is provided with in the middle of described through hole.
Further, the chamfering of described bellmouth orifice near one end of elastic opening snap ring is less than the half in elastic opening snap ring cross section.
The invention has the beneficial effects as follows: a kind of directly-pushing connecting pipe joint of improvement, it is on the basis of existing directly-pushing connecting pipe joint, the cross section of O-ring seal is set to by the outer arc of adaptive bellmouth orifice inwall, the straight line of laminating connected tube tube wall surrounds, thus extend the area of contact of O-ring seal and connected tube, even if part O-ring seal falls into circumferential clasp groove, the O-ring seal of other parts still drops on the outer tube wall of connected tube, thus make to keep sealing between O-ring seal and connected tube, enhance the sealability of this connecting tube joint, make its antileaking.
Accompanying drawing explanation
Fig. 1 is the structural representation of the directly-pushing connecting pipe joint of improvement of the present utility model.
Fig. 2 is the schematic cross-section of a kind of mode of execution of O-ring seal of the present utility model.
Fig. 3 is the schematic cross-section of the another kind of mode of execution of O-ring seal of the present utility model.
Fig. 4 is the schematic cross-section of elastic opening snap ring of the present utility model.
Description of reference numerals:
1---connected tube 2---through hole
3---joint body 4---sealing section
5---bellmouth orifice 6---O-ring seal
7---elastic opening snap ring 8---circumferential clasp groove
9---leakproof tail end 10---positioning step.
Embodiment
Below in conjunction with specific embodiment, the present invention is further detailed explanation, is not practical range of the present invention is limited to this.
embodiment one.
As Fig. 1, shown in Fig. 2, the directly-pushing connecting pipe joint of the improvement of the present embodiment, it comprises the joint body 3 with the through hole 2 that can insert for connected tube 1, the two ends of joint body 3 can be connected with a velamen connecting tube 1 respectively, in the present embodiment, one end of joint body 3 is connected with connected tube 1, concrete, described through hole 2 one end is interior large outer little shoulder hole, outboard end is young, and hole is sealing section 4, this sealing section 4 is for leading for connected tube 1, connected tube 1 inserts in joint body 3 along this sealing section 4, the internal diameter of sealing section 4 adapts to connected tube 1 external diameter, macropore inside shoulder hole is large mouth bellmouth orifice 5 inwardly, space is formed between bellmouth orifice 5 inwall and connected tube 1, the O-ring seal 6 and the elastic opening snap ring 7 that form water-stop with connected tube 1 pipe shaft is had in space, described O-ring seal 6 is arranged on the inner terminal in space, described elastic opening snap ring 7 is positioned at the outer end in space, the circumferential clasp groove 8 corresponding to elastic opening snap ring 7 is had outside described connected tube 1, O-ring seal 6 is for sealing between connected tube 1 and joint body 3, during use, elastic opening snap ring 7 clip is at circumferential clasp groove 8 place, make connected tube 1 can not extract (be suitable for special tool can) from joint body 3, in order to obtain better sealing effect, the cross section of described O-ring seal 6 is by the outer arc of adaptive bellmouth orifice 5 inwall, the straight line of laminating connected tube 1 tube wall surrounds, even if a part for O-ring seal 6 inner side surface falls into circumferential clasp groove 8, other parts of O-ring seal 6 inner side surface still drop on the outer tube wall of connected tube 1, thus make to keep between O-ring seal 6 and connected tube 1 sealing, enhance the sealability of this connecting tube joint, make its antileaking.
As shown in Figure 2, the cross section of described O-ring seal 6 can be " D " font.
Further, the shape of described elastic opening snap ring 7 is the untight annular that arc length is greater than 3/4 circumference, elastic opening snap ring 7 is set as untight annular, thus unlocking tool (prior art) can be made elastic opening snap ring 7 distending, thus elastic opening snap ring 7 is separated from circumferential clasp groove 8, connected tube 1 can be extracted.
Further, the cross section of described elastic opening snap ring 7 is circular, the central diameter of described elastic opening snap ring 7 is greater than the external diameter of connected tube 1, and described circumferential clasp groove 8 cross section is the groove that groove depth is less than the half in elastic opening snap ring 7 cross section, upper end, both sides has circular arc chamfering.
The present embodiment provides the elastic opening snap ring 7 of another kind of structure, as shown in Figure 4, the cross section of described elastic opening snap ring 7 is surrounded by the inclined-plane of fan-shaped inner arc, adaptive bellmouth orifice 5 outer end inner wall, fan-shaped inner arc portion can snap in circumferential clasp groove 8, the chamfered portion of elastic opening snap ring 7 forms a conical surface, thus this conical surface can be conflicted bellmouth orifice 5 outer end, after connected tube 1 inserts joint body 3, when connected tube 1 is outwards extracted, due to the inclined-plane of this conical surface conflict bellmouth orifice 5 outer end inner wall, connected tube 1 is not easily pulled out.
Further, in the middle of described through hole 2, be provided with the positioning step 10 for locating connected tube 1, thus restriction connected tube 1 inserts the degree of depth of described joint body 3.
Further, the chamfering of described bellmouth orifice 5 near one end of elastic opening snap ring 7 is less than the half in elastic opening snap ring 7 cross section, avoids elastic opening snap ring 7 dieback in bellmouth orifice 5.
It should be noted that, the shape of bellmouth orifice 5 of the present invention can also adopt the patent No. to be other shapes that record in the Chinese invention patent of 200910040489.4 and of the prior art.
embodiment two.
As shown in Figure 3, the difference of the present embodiment and embodiment one is: described O-ring seal 6 is extended with leakproof tail end 9 near one end of bellmouth orifice inner terminal, the shape of described leakproof tail end 9 is cylindrical, leakproof tail end 9 can stretch between joint body 3 and connected tube 1, thus makes sealability better.
Finally should be noted that; above embodiment is only in order to illustrate technological scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technological scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (3)
1. the directly-pushing connecting pipe joint improved, comprise the joint body (3) with the through hole (2) that connected tube (1) can be supplied to insert, described through hole (2) one end is interior large outer little shoulder hole, outboard end is young, and hole is sealing section (4), its internal diameter adapts to connected tube (1) external diameter, the macropore of inner side is large mouth bellmouth orifice inwardly (5), space is formed between bellmouth orifice (5) inwall and connected tube (1), the O-ring seal (6) and elastic opening snap ring (7) that form water-stop with connected tube (1) pipe shaft is had in space, described O-ring seal (6) is arranged on the inner terminal in space, described elastic opening snap ring (7) is positioned at the outer end in space, the circumferential clasp groove (8) corresponding to elastic opening snap ring (7) is had outside described connected tube (1), it is characterized in that: the cross section of described O-ring seal (6) is by the outer arc of adaptive bellmouth orifice (5) inwall, the straight line of laminating connected tube (1) tube wall surrounds,
The cross section of described O-ring seal (6) is " D " font;
The shape of described elastic opening snap ring (7) is the untight annular that arc length is greater than 3/4 circumference;
The cross section of described elastic opening snap ring (7) is surrounded by the inclined-plane of fan-shaped inner arc, adaptive bellmouth orifice (5) outer end inner wall;
The chamfering of described bellmouth orifice (5) near one end of elastic opening snap ring (7) is less than the half in elastic opening snap ring (7) cross section, avoids elastic opening snap ring (7) dieback in bellmouth orifice (5).
2. the directly-pushing connecting pipe joint of improvement according to claim 1, is characterized in that: be provided with the positioning step (10) for locating connected tube (1) in the middle of described through hole (2).
3. the directly-pushing connecting pipe joint improved, comprise the joint body (3) with the through hole (2) that connected tube (1) can be supplied to insert, described through hole (2) one end is interior large outer little shoulder hole, outboard end is young, and hole is sealing section (4), its internal diameter adapts to connected tube (1) external diameter, the macropore of inner side is large mouth bellmouth orifice inwardly (5), space is formed between bellmouth orifice (5) inwall and connected tube (1), the O-ring seal (6) and elastic opening snap ring (7) that form water-stop with connected tube (1) pipe shaft is had in space, described O-ring seal (6) is arranged on the inner terminal in space, described elastic opening snap ring (7) is positioned at the outer end in space, the circumferential clasp groove (8) corresponding to elastic opening snap ring (7) is had outside described connected tube (1), it is characterized in that: the cross section of described O-ring seal (6) is by the outer arc of adaptive bellmouth orifice (5) inwall, the straight line of laminating connected tube (1) tube wall surrounds,
Described O-ring seal (6) is extended with leakproof tail end (9) near one end of bellmouth orifice inner terminal, and the shape of described leakproof tail end (9) is cylindrical;
The shape of described elastic opening snap ring (7) is the untight annular that arc length is greater than 3/4 circumference;
The cross section of described elastic opening snap ring (7) is surrounded by the inclined-plane of fan-shaped inner arc, adaptive bellmouth orifice (5) outer end inner wall; The chamfering of described bellmouth orifice (5) near one end of elastic opening snap ring (7) is less than the half in elastic opening snap ring (7) cross section, avoids elastic opening snap ring (7) dieback in bellmouth orifice (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047658.3A CN103062549B (en) | 2013-02-06 | 2013-02-06 | The directly-pushing connecting pipe joint improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047658.3A CN103062549B (en) | 2013-02-06 | 2013-02-06 | The directly-pushing connecting pipe joint improved |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062549A CN103062549A (en) | 2013-04-24 |
| CN103062549B true CN103062549B (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310047658.3A Active CN103062549B (en) | 2013-02-06 | 2013-02-06 | The directly-pushing connecting pipe joint improved |
Country Status (1)
| Country | Link |
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| CN (1) | CN103062549B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504297A (en) * | 2017-02-24 | 2017-12-22 | 黄浩 | Thin-wall stainless steel pipe fitting interconnects tube head with tubing |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537731A (en) * | 1969-05-23 | 1970-11-03 | Robert R Reddy | Seal for a tubing joint |
| GB1494553A (en) * | 1974-01-17 | 1977-12-07 | Legris France Sa | Quick release coupling socket member |
| GB1555261A (en) * | 1975-06-03 | 1979-11-07 | Lera Holding Sa | Manual pipe coupling |
| FR2438789A2 (en) * | 1978-10-09 | 1980-05-09 | Thiebault Jean Pierre | Plastics profiles for joint between tap and rotary hose coupling - using a split ring of ptfe to facilitate assembly or dismantling |
| US4223896A (en) * | 1979-03-13 | 1980-09-23 | Ab Gustavsberg | Sealing ring |
| DE3211765A1 (en) * | 1982-03-30 | 1983-10-13 | WOCO Franz-Josef Wolf & Co, 6483 Bad Soden-Salmünster | Sleeve and sealing ring for a pipe plug connection |
| GB2155133A (en) * | 1984-03-01 | 1985-09-18 | Armco Inc | Load-bearing split ring with different depth slots |
| EP0163992A2 (en) * | 1984-05-18 | 1985-12-11 | SEILER, Georg | Sealed and locked socket joint for plastic pipes |
| CA2293624A1 (en) * | 1997-06-12 | 1998-12-17 | Mannesmann Aktiengesellschaft | Pressure connector for pipes |
| DE202006005082U1 (en) * | 2006-03-28 | 2006-06-08 | Ludwig Frischhut Gmbh & Co.Kg | Traction-resistant insertion connection for pipeline has annular clamp in region of conical sector, through which pipe can be passed |
| DE102006057304A1 (en) * | 2006-12-05 | 2008-06-19 | Poloplast Gmbh & Co.Kg | Pipe end sleeve with a bead |
| CN101614308A (en) * | 2009-06-23 | 2009-12-30 | 伍婧绫 | A kind of directly-pushing connecting pipe joint |
| CN203068017U (en) * | 2013-02-06 | 2013-07-17 | 张晓晖 | Improved direct-push connection pipe joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007027148A1 (en) * | 2007-06-13 | 2008-12-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Releasable pneumatic connection |
-
2013
- 2013-02-06 CN CN201310047658.3A patent/CN103062549B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537731A (en) * | 1969-05-23 | 1970-11-03 | Robert R Reddy | Seal for a tubing joint |
| GB1494553A (en) * | 1974-01-17 | 1977-12-07 | Legris France Sa | Quick release coupling socket member |
| GB1555261A (en) * | 1975-06-03 | 1979-11-07 | Lera Holding Sa | Manual pipe coupling |
| FR2438789A2 (en) * | 1978-10-09 | 1980-05-09 | Thiebault Jean Pierre | Plastics profiles for joint between tap and rotary hose coupling - using a split ring of ptfe to facilitate assembly or dismantling |
| US4223896A (en) * | 1979-03-13 | 1980-09-23 | Ab Gustavsberg | Sealing ring |
| DE3211765A1 (en) * | 1982-03-30 | 1983-10-13 | WOCO Franz-Josef Wolf & Co, 6483 Bad Soden-Salmünster | Sleeve and sealing ring for a pipe plug connection |
| GB2155133A (en) * | 1984-03-01 | 1985-09-18 | Armco Inc | Load-bearing split ring with different depth slots |
| EP0163992A2 (en) * | 1984-05-18 | 1985-12-11 | SEILER, Georg | Sealed and locked socket joint for plastic pipes |
| CA2293624A1 (en) * | 1997-06-12 | 1998-12-17 | Mannesmann Aktiengesellschaft | Pressure connector for pipes |
| DE202006005082U1 (en) * | 2006-03-28 | 2006-06-08 | Ludwig Frischhut Gmbh & Co.Kg | Traction-resistant insertion connection for pipeline has annular clamp in region of conical sector, through which pipe can be passed |
| DE102006057304A1 (en) * | 2006-12-05 | 2008-06-19 | Poloplast Gmbh & Co.Kg | Pipe end sleeve with a bead |
| CN101614308A (en) * | 2009-06-23 | 2009-12-30 | 伍婧绫 | A kind of directly-pushing connecting pipe joint |
| CN203068017U (en) * | 2013-02-06 | 2013-07-17 | 张晓晖 | Improved direct-push connection pipe joint |
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| Publication number | Publication date |
|---|---|
| CN103062549A (en) | 2013-04-24 |
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| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20151228 Address after: 528244 Lane 2, Heshuntang Village Development Zone, Lishui Town, Nanhai District, Foshan City, Guangdong Province(original workshop of Nanshan foundry) Patentee after: Guangdong Lifeng Pipeline Technology Co., Ltd. Address before: 510000 room 176, 1406 South Yuexiu Road, Guangdong, Guangzhou Patentee before: Zhang Xiaohui |