CN202469288U - External thread structure of pipe fitting with external thread - Google Patents
External thread structure of pipe fitting with external thread Download PDFInfo
- Publication number
- CN202469288U CN202469288U CN2012200193513U CN201220019351U CN202469288U CN 202469288 U CN202469288 U CN 202469288U CN 2012200193513 U CN2012200193513 U CN 2012200193513U CN 201220019351 U CN201220019351 U CN 201220019351U CN 202469288 U CN202469288 U CN 202469288U
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- Prior art keywords
- external thread
- pipe fitting
- sealing plug
- main body
- wall
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- Expired - Fee Related
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Abstract
The utility model relates to an external thread structure of a pipe fitting with an external thread, wherein the width of the end face of the external thread of the pipe fitting is more than that of the section at the main body of the pipe fitting; and the outer wall of the main body and the outer wall of the external thread are on the same plane; namely, the inner wall of the main body and the inner wall of the external thread are not on the same plane. The external thread structure disclosed by the utility model has the advantages that the external thread structure can be applied on any pipe fitting, water heating fitting and valve provided with the external thread and sealed through the contact surface of the port of the external thread; because the width of the contact surface is more than that of the section of the main body of the pipe fitting, when the external thread structure is connected with internal threads or internal thread loose joints of other pipe fittings, water heating fittings and valves, contact surfaces of the two are same; the pressure of a sealing gasket is reduced; therefore, the sealing gasket is uniform to stress and cannot be deformed and damaged through extrusion; and the sealing effect is obviously increased.
Description
Technical field
The utility model relates to link, specifically is a kind of connection pipe fitting.
Background technique
The external sealing plug of the existing water heating fittings that contains outer silk, pipe fitting, valve is all the same with body width, all narrow, when being connected with the internal sealing plug of other water heating fittings, pipe fitting or valve or internal thread active interface; If when relying on the gasket seal be clipped in the middle of the two to seal, because the surface of contact broad of internal sealing plug, and the surface of contact of external sealing plug is narrower; Tightening when sealing, can produce bigger pressure at gasket seal and external sealing plug surface of contact place, be easy to damage gasket seal; Thereby cause the working life of gasket seal very short; Even just might damage at that time, will cause this joint the phenomenon of percolating water to occur like this, serious situation can be given user's family because of percolating water and caused very big destruction; Thereby cause puzzlement and loss to the user; And because frequent maintenance occurs, cause burden and will compensate user's loss to distributors and producer, this also brings distributors and producer very big puzzlement.
The model utility content
The technical problem that the utility model will solve provides a kind of pressure that reduces gasket seal, makes gasket seal stressed evenly, can not make gasket seal be extruded the nozzle structure of the external fiber tube spare of deformed damaged.
The utility model adopts following technological scheme to solve the problems of the technologies described above: a kind of external sealing plug structure with pipe fitting of outer silk; The external sealing plug end face width of said pipe fitting is greater than the cross-sectional width at the main body place of pipe fitting; The outer wall of main body outer wall and external sealing plug is on the plane, also be main body inner wall and external sealing plug inwall not in one plane.
The utility model further is specially:
Said main body inner wall becomes step transition with the inwall of external sealing plug.
Perhaps main body inner wall becomes chamfered transition with the inwall of external sealing plug.
The advantage of the utility model is: the external sealing plug structure of the utility model can be applied in any surface of contact that need to rely on the external fiber tube spare that outer silk end face is connected with internal sealing plug, as contain outer external fiber tube spares such as water heating fittings, pipe fitting, valve; And the width of sealing contact surface designs the width of the port surface of contact of external fiber tube spare in internal sealing plug that can basis be connected with it or the internal thread loose joint; Make the width of the two just the same, when the gasket seal in the middle of dependence is clipped in the two seals like this, because the surface of contact broad of the two; Tightening when sealing; Pressure reduces, and is stressed even on the sealing gasket, can not make gasket seal be extruded deformed damaged; Significant sealing affection is strengthened, and reduces the generation of percolating water phenomenon.
Description of drawings
Fig. 1 is a sectional view of using first embodiment of the utility model.
Fig. 2 is a sectional view of using second embodiment of the utility model.
Fig. 3 is a sectional view of using the 3rd embodiment of the utility model.
Fig. 4 to Fig. 6 is respectively the structure sectional view of the product that can be used with the utility model.
Fig. 7 is a kind of matching chart of mode wherein.
Embodiment
Seeing also Fig. 1, is the sectional view of using first embodiment of the utility model, is ball valve 1 shown in Fig. 1, and an end of said ball valve 1 has outer silk 12.The width h1 of the external sealing plug end face 122 of said outer silk 12 is greater than the cross-sectional width h2 at the main body place of pipe fitting, and main body outer wall 124 is on the plane with the outer wall 126 of external sealing plug, also be main body inner wall 125 with the inwall 127 of external sealing plug not in one plane.Among this embodiment, 127 one-tenth chamfered transition of inwall of said main body inner wall 125 and external sealing plug.Certainly, said main body inner wall 125 also can become step transition with the inwall 127 of external sealing plug.
Seeing also Fig. 2, is the sectional view of using second embodiment of the utility model, is directly pipe fitting 2 of the outer silk of FERRULETYPE shown in Fig. 2, and the outer silk of a said FERRULETYPE directly end of pipe fitting 2 has outer silk 22.The external sealing plug structure and the external sealing plug structure among said first embodiment of said outer silk 22 are identical.
Seeing also Fig. 3, is the sectional view of using the 3rd embodiment of the utility model, is directly pipe fitting 3 of the outer silk of copper shown in Fig. 3, and the outer silk of a said copper directly end of pipe fitting 3 has outer silk 32.The external sealing plug structure and the external sealing plug structure among said first embodiment of said outer silk 32 are identical.
Fig. 4 to Fig. 6 is respectively the structure sectional view of the product that can be used with the utility model.Wherein Fig. 4 is a kind of Loose joint bend 4; Loose joint bend 4 one ends have and are arranged with a nut 42, these nut 42 movable being socketed on the Loose joint bend 4, and block by the back-up ring 43 that is fixed on the movable elbow 4; Thereby nut 24 can not break away from Loose joint bend 4; The opening of nut 42 promptly is the internal sealing plug 45 of this Loose joint bend 4, and end face 452 width that are positioned at the Loose joint bend 4 of this internal sealing plug 45 are h3, h3=h1.
As shown in Figure 7, be between the end face 452 of the Loose joint bend 4 that external sealing plug end face 122 that the constitutional diagram of this Loose joint bend 4 and ball valve 1, an O grommet type seal sheet 104 be arranged on ball valve 1 and internal sealing plug 45 are interior; The width of gasket seal 104 equals the width h1 of the external sealing plug end face 122 of said ball valve 1, also promptly equals the width h3 of the end face of the Loose joint bend 4 in the internal sealing plug 45, when screwing nut 42; Gasket seal 104 1 ends are tight against the external sealing plug end face 122 of ball valve 1, and the other end is tight against the end face 452 of the Loose joint bend 4 in the internal sealing plug 45, because the external sealing plug end face 122 special designs of ball valve 1 are widened; Make it to fit like a glove, increase area of contact, reduce the pressure of gasket seal 104 with the end face 452 of Loose joint bend 4; Make gasket seal 104 stressed even; Can not make gasket seal 104 be extruded deformed damaged, can find out, if external sealing plug end face 122 is not widened; With the end face 452 of Loose joint bend 4 phenomenon that staggers is just arranged, just damage gasket seal 104 easily.This kind assembly parts can avoid occurring the phenomenon of percolating water during as flow channel.
Certainly; This Loose joint bend 4 also can make up with outer direct pipe fitting 2 of above-mentioned FERRULETYPE or the direct pipe fitting 3 of the outer silk of copper; Structure in the structural relation between its use therein gasket seal in combination back and two surface of contact and the assembly parts of above-mentioned Loose joint bend 4 and ball valve 1 is identical, repeats no more.
Wherein Fig. 5 is the internal thread loose joint pipe fitting 5 of the existing copper pipe flange of using always; The internal thread loose joint pipe fitting 5 of said copper pipe flange has internal sealing plug 52, and what contact with the external sealing plug end face of external fiber tube spare is the end face 522 of internal thread loose joint pipe fitting 5 that is positioned at the copper pipe flange of this internal sealing plug 52.This internal thread loose joint pipe fitting 5 can with directly directly one of any combination of pipe fitting 3 of pipe fitting 2 or the outer silk of copper of above-mentioned ball valve 1, the outer silk of FERRULETYPE; Structure in the structural relation between its use therein gasket seal in combination back and two surface of contact and the assembly parts of above-mentioned Loose joint bend 4 and ball valve 1 is identical, repeats no more.
Wherein Fig. 6 is existing internal thread joint 6 commonly used, and said internal thread joint 6 has internal sealing plug 62, and what contact with the external sealing plug end face of external fiber tube spare is the end face 622 that is positioned at the internal thread joint 6 of this internal sealing plug 62.This internal thread joint 6 can with directly directly one of any combination of pipe fitting 3 of pipe fitting 2 or the outer silk of copper of above-mentioned ball valve 1, the outer silk of FERRULETYPE; Structure in the structural relation between its use therein gasket seal in combination back and two surface of contact and the assembly parts of above-mentioned Loose joint bend 4 and ball valve 1 is identical, repeats no more.
Claims (3)
1. one kind has the external sealing plug structure of the pipe fitting of silk outward; It is characterized in that: the external sealing plug end face width of said pipe fitting is greater than the cross-sectional width at the main body place of pipe fitting; The outer wall of main body outer wall and external sealing plug is on the plane, also be main body inner wall and external sealing plug inwall not in one plane.
2. the external sealing plug structure with pipe fitting of outer silk as claimed in claim 1, it is characterized in that: said main body inner wall becomes step transition with the inwall of external sealing plug.
3. the external sealing plug structure with pipe fitting of outer silk as claimed in claim 1, it is characterized in that: said main body inner wall becomes chamfered transition with the inwall of external sealing plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200193513U CN202469288U (en) | 2012-01-16 | 2012-01-16 | External thread structure of pipe fitting with external thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200193513U CN202469288U (en) | 2012-01-16 | 2012-01-16 | External thread structure of pipe fitting with external thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469288U true CN202469288U (en) | 2012-10-03 |
Family
ID=46917447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200193513U Expired - Fee Related CN202469288U (en) | 2012-01-16 | 2012-01-16 | External thread structure of pipe fitting with external thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047463A (en) * | 2012-11-27 | 2013-04-17 | 厦门三登塑胶工业有限公司 | Multi-style ball valve |
-
2012
- 2012-01-16 CN CN2012200193513U patent/CN202469288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047463A (en) * | 2012-11-27 | 2013-04-17 | 厦门三登塑胶工业有限公司 | Multi-style ball valve |
| CN103047463B (en) * | 2012-11-27 | 2014-05-07 | 厦门三登塑胶工业有限公司 | Multi-style ball valve |
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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: 20121003 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |