CN203068017U - Improved direct-push connection pipe joint - Google Patents
Improved direct-push connection pipe joint Download PDFInfo
- Publication number
- CN203068017U CN203068017U CN 201320069238 CN201320069238U CN203068017U CN 203068017 U CN203068017 U CN 203068017U CN 201320069238 CN201320069238 CN 201320069238 CN 201320069238 U CN201320069238 U CN 201320069238U CN 203068017 U CN203068017 U CN 203068017U
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- China
- Prior art keywords
- pipe joint
- snap ring
- elastic opening
- hole
- opening snap
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- 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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Abstract
The utility model relates to the technical field of pipeline connectors, in particular to an improved direct-push connection pipe joint. The connection pipe joint comprises a joint body provided with a through hole capable of being used for inserting a connected pipe, wherein a stepped hole which is big inside and small outside is formed in one end of the through hole; the big hole on the inner side is a horn hole with a big opening towards the inner side; a gap is formed between the inner wall of the horn hole and the connected pipe; a sealing rubber ring forming water seal with a pipe body of the connected pipe and an elastic open clamping ring are arranged in the gap; an annular clamping ring groove corresponding to the elastic open clamping ring is formed in the position outside the connected pipe; and the inner diameter of the sealing rubber ring is smaller than the outer diameter of the connected pipe. According to the connection pipe joint, the cross section of the sealing rubber ring is set to be defined by an outer arc matched with the inner wall of the horn hole and a straight line fitted to the pipe wall of the connected pipe; and even if a part of the sealing rubber ring falls into the annular clamping ring groove, another part of the sealing rubber ring still falls on the outer pipe wall of the connected pipe, so that the seal between the sealing rubber ring and the connected pipe is kept, the sealing performance of the connection pipe joint is improved, and the connection pipe joint does not easily leak water.
Description
Technical field
The utility model relates to the pipe joint technical field, particularly relates to a kind of improved directly-pushing connecting pipe joint.
Background technique
Pipe joint is generally passed through in the pipeline connection, general connected tube and joint are by being threaded, the linkage structure that adopts the internal tooth slotted collar is also arranged, the employing elastic opening snap ring that also has and conical surface combination directly push away linkage structure, connected tube can directly push and plug into joint body, but is subject to the conical surface and elastic opening snap ring and can not extracts.
In the patent No. is 200910040489.4 Chinese utility model patent, a kind of directly-pushing connecting pipe joint is disclosed, it comprises the 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, the 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 big mouth bellmouth orifice inwardly, form the space between bellmouth orifice inwall and the connected tube, O-ring seal namely is installed in the inner terminal in space, and the elastic opening snap ring also is housed in the space, and connected tube has the circumferential clasp groove corresponding to the elastic opening snap ring outward.Because O-ring seal and elastic opening snap ring all are arranged in the bellmouth orifice, avoided in very short length, allowing joint body that big curvature takes place and changed, can adopt a pattern cold expanding pipe to make joint body, save material and reduced cost.
But for technique scheme, dark if connected tube inserted when inserting connected tube in the joint body, O-ring seal drops in the circumferential clasp groove, causes the compression ratio of O-ring seal not enough, thereby causes water to spill from bellmouth orifice easily.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of improved directly-pushing connecting pipe joint is provided, and it is by the inboard applying connected tube tube wall with O-ring seal, thereby makes sealability better, antileaking.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of improved directly-pushing connecting pipe joint, comprise the joint body with the through hole that can supply the connected tube insertion, described through hole one end is interior big outer little shoulder hole, the young hole of outboard end is the section of sealing, its internal diameter adapts to the connected tube external diameter, inboard macropore is big mouth bellmouth orifice inwardly, form the space between bellmouth orifice inwall and the connected tube, the O-ring seal and the elastic opening snap ring that constitute water-stop with the connected tube pipe shaft are arranged in the space, described O-ring seal is installed in the inner terminal in space, described elastic opening snap ring is positioned at the outer end in space, described connected tube has the circumferential clasp groove corresponding to the elastic opening snap ring outward, and the cross section of described O-ring seal is the outer arc by adaptive bellmouth orifice inwall, the straight line of applying 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 the leakproof tail end near an end of bellmouth orifice inner terminal, and being shaped as of described leakproof tail end is cylindrical.
Wherein, described elastic opening snap ring is shaped as arc length greater than the untight annular of 3/4 circumference.
Wherein, the cross section of described elastic opening snap ring is circular, and the middle footpath of described elastic opening snap ring is greater than the external diameter of connected tube, and described circumferential clasp groove cross section is that groove depth is less than half of elastic opening snap ring cross section, the groove that the upper end, both sides has circular arc chamfering.
Perhaps, the cross section of described elastic opening snap ring is that inclined-plane by fan-shaped inner arc, adaptive bellmouth orifice outer end inner wall surrounds.
Further, be provided with for the positioning step of locating connected tube in the middle of the described through hole.
Further, described bellmouth orifice is near half less than elastic opening snap ring cross section of the chamfering of an end of elastic opening snap ring.
The beneficial effects of the utility model are: a kind of improved directly-pushing connecting pipe joint, it is on the basis of existing directly-pushing connecting pipe joint, the cross section of O-ring seal is set to the outer arc by adaptive bellmouth orifice inwall, the straight line of applying connected tube tube wall surrounds, thereby prolonged the area of contact of O-ring seal and connected tube, even the part O-ring seal falls into the circumferential clasp groove, the O-ring seal of other parts still drops on the outer tube wall of connected tube, thereby make and keep sealing between O-ring seal and the connected tube, strengthened the sealability of this connecting tube joint, made its antileaking.
Description of drawings
Fig. 1 is the structural representation of improved directly-pushing connecting pipe joint 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---section of sealing
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 utility model being described in further detail, is not that practical range of the present utility model is limited to this.
Embodiment one.
As Fig. 1, shown in Figure 2, the improved directly-pushing connecting pipe joint of present embodiment, it comprises the joint body 3 with the through hole 2 that can supply connected tube 1 insertion, 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 ends are interior big outer little shoulder hole, the young hole of outboard end is the section of sealing 4, this section of sealing 4 is used to connected tube 1 guiding, connected tube 1 inserts in the joint body 3 along this section of sealing 4, the internal diameter of the section of sealing 4 adapts to connected tube 1 external diameter, the macropore of shoulder hole inboard is big mouth bellmouth orifice 5 inwardly, form the space between bellmouth orifice 5 inwalls and the connected tube 1, the O-ring seal 6 and the elastic opening snap ring 7 that constitute water-stop with connected tube 1 pipe shaft are arranged in the space, described O-ring seal 6 is installed in the inner terminal in space, described elastic opening snap ring 7 is positioned at the outer end in space, the described connected tube 1 outer circumferential clasp groove 8 that has corresponding to elastic opening snap ring 7, O-ring seal 6 is used for and will seals between connected tube 1 and the joint body 3, during use, elastic opening snap ring 7 clips are at circumferential clasp groove 8 places, make connected tube 1 can not from joint body 3, extract (be suitable for special tool can), in order to obtain better sealing effect, the cross section of described O-ring seal 6 is the outer arcs by adaptive bellmouth orifice 5 inwalls, the straight line of applying connected tube 1 tube wall surrounds, even the part of O-ring seal 6 inner side surfaces falls into circumferential clasp groove 8, other parts of O-ring seal 6 inner side surfaces still drop on the outer tube wall of connected tube 1, thereby make and keep sealing between O-ring seal 6 and the connected tube 1, strengthened the sealability of this connecting tube joint, made its antileaking.
As shown in Figure 2, the cross section of described O-ring seal 6 can be " D " font.
Further, described elastic opening snap ring 7 be shaped as arc length greater than the untight annular of 3/4 circumference, elastic opening snap ring 7 is set as untight annular, thereby can so that unlocking tool (prior art) with elastic opening snap ring 7 distendings, thereby make elastic opening snap ring 7 separate 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 middle footpath of described elastic opening snap ring 7 is greater than the external diameter of connected tube 1, and described circumferential clasp groove 8 cross sections are that groove depth is less than half of elastic opening snap ring 7 cross sections, the groove that the upper end, both sides has circular arc chamfering.
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 that the inclined-plane by fan-shaped inner arc, adaptive bellmouth orifice 5 outer end inner walls surrounds, fan-shaped inner arc part can snap in the circumferential clasp groove 8, the chamfered portion of elastic opening snap ring 7 forms a conical surface, thereby make this conical surface bellmouth orifice 5 outer ends of can conflicting, after connected tube 1 inserts joint body 3, when connected tube 1 is outwards extracted, because the inclined-plane of these conical surface conflict bellmouth orifice 5 outer end inner walls makes connected tube 1 be difficult for being pulled out.
Further, be provided with the positioning step 10 for location connected tube 1 in the middle of the described through hole 2, thereby restriction connected tube 1 inserts the degree of depth of described joint body 3.
Further, described bellmouth orifice 5 avoids elastic opening snap ring 7 diebacks in bellmouth orifice 5 near half less than elastic opening snap ring 7 cross sections of the chamfering of an end of elastic opening snap rings 7.
Need to prove that it is that put down in writing in 200910040489.4 the Chinese utility model patent and other shapes of the prior art that the shape of bellmouth orifice 5 of the present utility model can also adopt the patent No..
Embodiment two.
As shown in Figure 3, present embodiment and embodiment's one difference is: described O-ring seal 6 is extended with leakproof tail end 9 near an end of bellmouth orifice inner terminal, being shaped as of described leakproof tail end 9 is cylindrical, leakproof tail end 9 can stretch between joint body 3 and the connected tube 1, thereby makes sealability better.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; although with reference to preferred embodiment the utility model has been done to explain; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (8)
1. improved directly-pushing connecting pipe joint, comprise the joint body (3) with the through hole (2) that can supply connected tube (1) insertion, described through hole (2) one ends are interior big outer little shoulder hole, the young hole of outboard end is the section of sealing (4), its internal diameter adapts to connected tube (1) external diameter, inboard macropore is big mouth bellmouth orifice (5) inwardly, form the space between bellmouth orifice (5) inwall and the connected tube (1), the O-ring seal (6) and the elastic opening snap ring (7) that constitute water-stop with connected tube (1) pipe shaft are arranged in the space, described O-ring seal (6) is installed in the inner terminal in space, described elastic opening snap ring (7) is positioned at the outer end in space, the outer circumferential clasp groove (8) that has corresponding to elastic opening snap ring (7) of described connected tube (1), it is characterized in that: the cross section of described O-ring seal (6) is the outer arc by adaptive bellmouth orifice (5) inwall, the straight line of applying connected tube (1) tube wall surrounds.
2. improved directly-pushing connecting pipe joint according to claim 1, it is characterized in that: the cross section of described O-ring seal (6) is " D " font.
3. improved directly-pushing connecting pipe joint according to claim 1 is characterized in that: described O-ring seal (6) is extended with leakproof tail end (9) near an end of bellmouth orifice inner terminal, and being shaped as of described leakproof tail end (9) is cylindrical.
4. improved directly-pushing connecting pipe joint according to claim 1 is characterized in that: described elastic opening snap ring (7) be shaped as arc length greater than the untight annular of 3/4 circumference.
5. improved directly-pushing connecting pipe joint according to claim 4, it is characterized in that: the cross section of described elastic opening snap ring (7) is for circular, the middle footpath 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 that groove depth is less than half of elastic opening snap ring (7) cross section, the groove that the upper end, both sides has circular arc chamfering.
6. improved directly-pushing connecting pipe joint according to claim 4 is characterized in that: the cross section of described elastic opening snap ring (7) is that the inclined-plane by fan-shaped inner arc, adaptive bellmouth orifice (5) outer end inner wall surrounds.
7. improved directly-pushing connecting pipe joint according to claim 1 is characterized in that: be provided with the positioning step (10) for location connected tube (1) in the middle of the described through hole (2).
8. improved directly-pushing connecting pipe joint according to claim 1 is characterized in that: described bellmouth orifice (5) is near half less than elastic opening snap ring (7) cross section of the chamfering of an end of elastic opening snap ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069238 CN203068017U (en) | 2013-02-06 | 2013-02-06 | Improved direct-push connection pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069238 CN203068017U (en) | 2013-02-06 | 2013-02-06 | Improved direct-push connection pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068017U true CN203068017U (en) | 2013-07-17 |
Family
ID=48766798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320069238 Expired - Lifetime CN203068017U (en) | 2013-02-06 | 2013-02-06 | Improved direct-push connection pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062549A (en) * | 2013-02-06 | 2013-04-24 | 张晓晖 | Improved direct push connecting pipe joint |
| CN107202218A (en) * | 2017-07-06 | 2017-09-26 | 程宇婷 | One kind insertion enclosed type connecting interface |
-
2013
- 2013-02-06 CN CN 201320069238 patent/CN203068017U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062549A (en) * | 2013-02-06 | 2013-04-24 | 张晓晖 | Improved direct push connecting pipe joint |
| CN103062549B (en) * | 2013-02-06 | 2015-10-28 | 张晓晖 | The directly-pushing connecting pipe joint improved |
| CN107202218A (en) * | 2017-07-06 | 2017-09-26 | 程宇婷 | One kind insertion enclosed type connecting interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161028 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: 510000 room 176, 1406 South Yuexiu Road, Guangdong, Guangzhou Patentee before: Zhang Xiaohui |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |