CN202769155U - Clamping and sealing structure of plastic pipe fitting - Google Patents
Clamping and sealing structure of plastic pipe fitting Download PDFInfo
- Publication number
- CN202769155U CN202769155U CN 201220453003 CN201220453003U CN202769155U CN 202769155 U CN202769155 U CN 202769155U CN 201220453003 CN201220453003 CN 201220453003 CN 201220453003 U CN201220453003 U CN 201220453003U CN 202769155 U CN202769155 U CN 202769155U
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- CN
- China
- Prior art keywords
- plastic pipe
- plastic
- inner container
- clamping
- cutting ferrule
- 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 - Fee Related
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Abstract
The utility model discloses a clamping and sealing structure of a plastic pipe fitting and the clamping and sealing structure of the plastic pipe fitting is applied for connecting of a plastic inner container and the plastic pipe fitting. Pre-drilled holes matched with the plastic pipe fitting inside the plastic inner container are provided with sealing rings used for edge ring surfaces of the pre-drilled holes to be inserted and clamped. Connecting ends of the plastic pipe fitting, sleeved in inner holes of the sealing rings, are positioned at inner side surfaces of the plastic inner container. A fixing clamping sleeve sleeved on the plastic pipe fitting is connected with the plastic pipe fitting in a clamping mode and presses tightly end faces of the sealing rings, wherein the end faces are arranged outside the plastic inner container. According to the clamping and sealing structure of the plastic pipe fitting, the sealing structure can meet the requirements of sealing reliability of the pipe fitting on the plastic inner container.
Description
Technical field
The utility model relates to a kind of clamping sealing configuration of pipe fitting, is applied to being connected of plastic pipe and water tank on the water-heater water tank.
Background technique
New developing direction of common direct insertion solar water heater water tank is the plastic inner container water tank both at home and abroad, yet the combination of pipe fitting and inner bag is a difficult problem all the time.The structure of Related product generally is the structure of stainless steel pipe and inner bag clamping on the current market, although the application of this kind structure is more extensive, is being not optimal case aspect processability and the Economy.And the expansion coefficient of stainless steel and plastics differs larger, and hardness, rigidity, intensity have again sizable difference.In the water tank length of life, because there being such difference, easily produce seal failure thereby reach when water temperature changes in water tank, there are potential risks, reduced the life-span of product.
Those skilled in the art attempts using plastic pipe to substitute stainless steel pipe, and usually, the material of plastic pipe adopts the material identical with water tank liner to make, and the inventor admits this trial, but needs to process the sealing problem that plastic pipe is connected with inner bag.
Summary of the invention
For this reason, the purpose of this utility model is to provide a kind of clamping sealing configuration of plastic pipe, to satisfy pipe fitting sealing reliability on plastic inner container for the applying of current plastic inner container.
The technical solution adopted in the utility model is:
A kind of clamping sealing configuration of plastic pipe, be applied to being connected of plastic inner container and plastic pipe, pre-manufactured hole at plastic inner container coupling plastic pipe is provided with the seal ring that this pre-manufactured hole edge anchor ring is pressed from both sides in embedding, the connecting end that is placed in the described plastic pipe of sealing ring endoporus is positioned the plastic inner container inner side surface, and one is enclosed within fixedly cutting ferrule and the plastic pipe clamping on the described plastic pipe and compresses described seal ring and is positioned at the outer end face of plastic inner container.
Clamping sealing configuration according to above-mentioned plastic pipe of the present utility model, when the plastic pipe connecting end, the end that namely is connected on the plastic inner container suffers restraints, namely produce a restraining force that plastic pipe is axial, fixedly cutting ferrule then produces a support force with this restraining force opposite direction by clamping, in seal ring, be subject to the extruding force of both direction, produce reliable sealing.Even if plastic pipe and plastic inner container material are different, this extruding force also can produce corresponding compensation, guarantees the reliability of sealing.
The clamping sealing configuration of above-mentioned plastic pipe, described plastic pipe is circumferentially with the projection of the described fixedly cutting ferrule in a pair of location, correspondingly, the radian two ends that described fixed card is enclosed within coupling two projection restrictions respectively are provided with an axial guide groove, so that fixedly cutting ferrule only just can be enclosed within on the plastic pipe connecting end in this guide groove and projection to timing, and then, be inserted in a pair of draw-in groove that is provided with that the tail end of direction also mates at axial fixedly cutting ferrule, two corresponding draw-in grooves are identical at circumferential corner with the described guide groove of one of corresponding each, and pass through the importing of arc transition part between draw-in groove and corresponding guide groove.
The clamping sealing configuration of above-mentioned plastic pipe, described a pair of projection is axisymmetric to be distributed on the described plastic pipe; Accordingly, described corner is 90 degree.
The clamping sealing configuration of above-mentioned plastic pipe, the head end that described fixedly cutting ferrule is inserted in direction are provided with and are engaged in the platen that described seal ring is positioned at the outer end face of plastic inner container.
Description of drawings
Fig. 1 is the clamping sealed structural representation according to a kind of plastic pipe of the present utility model.
Fig. 2 is a kind of structural representation of fixedly cutting ferrule.
Fig. 3 is a kind of structural representation of plastic pipe.
Among the figure: 1, plastic pipe, 2, fixing cutting ferrule, 3, seal ring, 4, plastic inner container, 5, guide groove, 6, draw-in groove, 7, guide surface, 8, platen, 9, projection, 10, large footpath section, 11, positioning ring.
Embodiment
According to the utility model, be applied to being connected of plastic inner container 4 and plastic pipe 1, consider when adopting the plastic pipe coupling to be applied on the plastic inner container, the plastic pipe that generally uses is the same with the material of applied plastic inner container, constouctional material such as plastic inner container is modified polypropene, for guaranteeing the conformity of product material, plastic pipe also is to use plastic material, and preferably adopts modified polypropene.Its physical property, mechanical property and cabinet body have kept the conformity of height.
Usually, open first mounting hole on plastic inner container, the aperture arranges seal ring 3 greater than the external diameter of plastic pipe 1 between hole inwall and plastic pipe outer wall.As shown in Figure 3, the connecting end of plastic pipe 1 is provided with positioning ring 11, and the positioning ring diameter is installed plastic pipe like this greater than the mounting hole aperture in plastic inner container, can be subject to the constraint of plastic inner container, forms the location.
In the clamping sealing configuration of a kind of plastic pipe shown in explanation accompanying drawing 1, pre-manufactured hole at plastic inner container 4 coupling plastic pipes 1 is provided with the seal ring 3 that this pre-manufactured hole edge anchor ring is pressed from both sides in embedding, among the figure, respectively there is a diameter at the two ends of seal ring 3 greater than the axle collar in pre-manufactured hole aperture, the middle part is that slightly larger in diameter is in the cooperation section in pre-manufactured hole aperture, this cooperation section is consistent with the common mode that is sealed and matched, and does not repeat them here.According to said structure, can form reliable hollow sealing configuration, the sealing configuration area of contact is large.
And the connecting end that is placed in the described plastic pipe 1 of sealing ring endoporus is positioned the plastic inner container inner side surface, certainly, this be positioned on plastic pipe and the metal pipe element basically the same, it all is the structure that adopts positioning ring 11 as shown in Figure 3, certainly, with bolts and integral molded plastic moulding is also arranged.
One is enclosed within fixedly cutting ferrule 2 and the plastic pipe clamping on the described plastic pipe and compresses described seal ring 3 and is positioned at the outer end face of plastic inner container 4, and so just the structural type of formation two ends crush seal circle 3 as shown in Figure 1 has certain adaptive ability.Especially seal ring seals by distortion, just can play good seal action by the extra restriction that do not need of distortion.
About described clamping, can adopt the buckle form, utilize the hook end to get resiliently deformable and snap in end of thread, in one embodiment, based on a kind of new design, described plastic pipe 1 is circumferentially with the projection 9 of the described fixedly cutting ferrule 2 in a pair of location, as shown in Figure 3, correspondingly, described fixedly cutting ferrule 2 respectively is provided with an axial guide groove 5 at the radian two ends that coupling two projections limit, so that fixedly cutting ferrule only just can be enclosed within on the plastic pipe connecting end large footpath section 10 as shown in Figure 3 in this guide groove and projection to timing, for with the fixing pipeline section of cutting ferrule 2 shaft hole matchings, and then, be inserted in a pair of draw-in groove 6 that is provided with that the tail end of direction also mates at axial fixedly cutting ferrule, as shown in Figure 2, two corresponding draw-in grooves 6 are identical at circumferential corner with the described guide groove 5 of one of corresponding each, and pass through the importing of arc transition part between draw-in groove and corresponding guide groove.Thereby, when after fixedly cutting ferrule is inserted in, be set to the position of draw-in groove 6 by rotating fixed card, spacing to projection 9 formation, form reliable interface arrangment.
In structure shown in Figure 2, arc intermediate location guide surface 7, this guide surface 7 have in fixed card and overlap axially extended trend, and the structural type of press seal circle 3 is namely arranged, and to form reliable compression, guarantee the needed positive pressure of sealing configuration.
Preferably, described a pair of projection is axisymmetric is distributed on the described plastic pipe 1; Accordingly, described corner is 90 degree, forms preferably axially symmetric structure, guarantees the equally loaded of load.
Further, the head end that described fixedly cutting ferrule is inserted in direction is provided with and is engaged in the platen 8 that described seal ring is positioned at the end face outside the plastic inner container 4, and like this, the distortion of seal ring 3 is formed reliably sealing by operative constraint.
Claims (4)
1. the clamping sealing configuration of a plastic pipe, be applied to being connected of plastic inner container (4) and plastic pipe (1), it is characterized in that, pre-manufactured hole at plastic inner container (4) coupling plastic pipe (1) is provided with the seal ring (3) that this pre-manufactured hole edge anchor ring is pressed from both sides in embedding, the connecting end that is placed in the described plastic pipe (1) of sealing ring endoporus is positioned the plastic inner container inner side surface, and one is enclosed within fixedly cutting ferrule (2) and the plastic pipe clamping on the described plastic pipe and compresses described seal ring (3) and is positioned at the outer end face of plastic inner container (4).
2. the clamping sealing configuration of plastic pipe according to claim 1, it is characterized in that, described plastic pipe (1) is circumferentially with the projection (9) of the described fixedly cutting ferrule in a pair of location (2), correspondingly, described fixedly cutting ferrule (2) respectively is provided with an axial guide groove (5) at the radian two ends that coupling two projections limit, so that fixedly cutting ferrule only just can be enclosed within on the plastic pipe connecting end in this guide groove and projection to timing, and then, be provided with a pair of draw-in groove (6) what axial fixedly cutting ferrule was inserted in that the tail end of direction also mates, corresponding two draw-in grooves (6) are identical at circumferential corner with the described guide groove (5) of one of corresponding each, and pass through the importing of arc transition part between draw-in groove and corresponding guide groove.
3. the clamping sealing configuration of plastic pipe according to claim 2 is characterized in that, described a pair of projection is axisymmetric to be distributed on the described plastic pipe (1); Accordingly, described corner is 90 degree.
4. according to claim 2 or the clamping sealing configuration of 3 described plastic pipes, it is characterized in that the head end that described fixedly cutting ferrule is inserted in direction is provided with and is engaged in the platen (8) that described seal ring is positioned at the outer end face of plastic inner container (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453003 CN202769155U (en) | 2012-09-07 | 2012-09-07 | Clamping and sealing structure of plastic pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453003 CN202769155U (en) | 2012-09-07 | 2012-09-07 | Clamping and sealing structure of plastic pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769155U true CN202769155U (en) | 2013-03-06 |
Family
ID=47775730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220453003 Expired - Fee Related CN202769155U (en) | 2012-09-07 | 2012-09-07 | Clamping and sealing structure of plastic pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202769155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439356A (en) * | 2016-10-31 | 2017-02-22 | 济南丰源塑料有限公司 | Composite pipe fitting for connector of liner of plastic water heater |
| CN109296835A (en) * | 2018-11-30 | 2019-02-01 | 常州常发制冷科技有限公司 | Plug-in type sealed pipe fitting and its installation method |
-
2012
- 2012-09-07 CN CN 201220453003 patent/CN202769155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439356A (en) * | 2016-10-31 | 2017-02-22 | 济南丰源塑料有限公司 | Composite pipe fitting for connector of liner of plastic water heater |
| CN109296835A (en) * | 2018-11-30 | 2019-02-01 | 常州常发制冷科技有限公司 | Plug-in type sealed pipe fitting and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150907 |
|
| EXPY | Termination of patent right or utility model |