CN204717168U - Stainless steel helical bellows internal thread connecting piece - Google Patents
Stainless steel helical bellows internal thread connecting piece Download PDFInfo
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- CN204717168U CN204717168U CN201520378792.6U CN201520378792U CN204717168U CN 204717168 U CN204717168 U CN 204717168U CN 201520378792 U CN201520378792 U CN 201520378792U CN 204717168 U CN204717168 U CN 204717168U
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- internal thread
- stainless steel
- helical bellows
- steel helical
- mouth
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Abstract
The utility model relates to a kind of stainless steel helical bellows internal thread connecting piece, comprise stainless steel helical bellows, also comprise internal thread connection pipe fitting, internal thread seal rubber pad, the fastening of hexagonal outside thread, its mouth of pipe place of described internal thread connection pipe fitting is provided with mouth of pipe internal thread, and described mouth of pipe internal thread is provided with concentric gradient reducing through hole rearward; Described internal thread seal rubber pad is threaded cast, and its structure comprises internal thread and gradient reducing precursor, and the outer surface thread of described internal thread and stainless steel helical bellows matches, and size dimension and the gradient reducing through hole of described gradient reducing precursor match; The fastening of described hexagonal outside thread is cast, and its front end is provided with outside thread, and described outside thread and mouth of pipe internal thread match.The utility model is only with the Placement of pure machinery, and to realize between stainless steel helical bellows with internal thread connection pipe fitting closely stable is connected, and its structure is simple, and technique is advanced, sealing and to keep away water-based energy good, durable in use.
Description
Technical field
The utility model relates to helical bellows field, particularly relates to a kind of stainless steel helical bellows internal thread connecting piece.
Background technique
Along with improving constantly of people's living standard; to environmental protection and healthy concern; in local-style dwelling houses water engineering, floor heating engineering, municipal engineering pipeline network construction; the features such as helical bellows is light with its quality, high strength, corrosion-resistant, anti-aging, life-span length, environment protection health; in international, the domestic desirable substitution material just becoming conventional concrete pipe, cast iron tube, galvanized pipe, (common) plastics (draining) pipe, particularly secretly bury and with bending engineering construction in have more advantage.But safe and reliable connection is the key point ensureing the permanently effective use of helical bellows.
The common Placement of helical bellows has: 1, heat-shrinkable tube (band) connects, and this kind of Placement easily causes keeping away water poor performance, jointing insufficient strength, and when the uneven sedimentation of ground, interface may misplace disconnection.2, hot-melt extruded connects, and when tubing is constructed in groove, is difficult to welding bottom tubing, is difficult to construction when job site rain, cannot achieve helical bellows and secretly bury use at building field.In addition, manual welding to tubing keep away water-based can be difficult to ensure.3, Electric thermal smelting belt connects, and this kind of Placement exists equally keeps away water poor-performing.4, clip connected, cost is higher, and keeps away water poor-performing.
Model utility content
Under the purpose of this utility model is to overcome above-mentioned prior art, the deficiency of the various Placement of helical bellows, such as linkage structure, complex process, sealing is not good, keep away water poor performance etc., a kind of stainless steel helical bellows internal thread connecting piece is provided, with the Placement of pure machinery, overcomes these problems.
The utility model have employed following technological scheme: a kind of stainless steel helical bellows internal thread connecting piece, comprise stainless steel helical bellows, also comprise internal thread connection pipe fitting, internal thread seal rubber pad, the fastening of hexagonal outside thread, its mouth of pipe place of described internal thread connection pipe fitting is provided with mouth of pipe internal thread, and described mouth of pipe internal thread is provided with concentric gradient reducing through hole rearward; Described internal thread seal rubber pad is threaded cast, its structure comprises internal thread and gradient reducing precursor, described internal thread and gradient reducing precursor concentric, the outer surface thread of described internal thread and stainless steel helical bellows matches, and size dimension and the gradient reducing through hole of described gradient reducing precursor match; The fastening of described hexagonal outside thread is cast, and its front end is provided with outside thread, and described outside thread and mouth of pipe internal thread match.
Further, the length of described internal thread seal rubber pad add externally threaded length and, the length being more than or equal to gradient reducing through hole add the length of mouth of pipe internal thread and.The outside thread of such hexagonal outside thread fastening can be screwed into internal thread connection pipe fitting completely, ensure that the sealing of stainless steel helical bellows internal thread connecting piece.
Further, the profile of described hexagonal outside thread fastening is similar to hexagon head hollow bolt.Be convenient to manually the fastening of hexagonal outside thread is screwed into internal thread connection pipe fitting, without the need to by other instruments.
Further, described internal thread connection pipe fitting, the fastening of hexagonal outside thread all select stainless steel material to make, identical with the material of stainless steel helical bellows.
Further, the outer diameter of described stainless steel helical bellows is less than the inner diameter of hexagonal outside thread fastening.
Further, the maximum diameter of described internal thread seal rubber pad is less than the mouth of pipe inner diameter of internal thread connection pipe fitting.Because internal thread seal rubber pad needs to insert internal thread connection pipe fitting inside.
Working principle: first internal thread seal rubber pad is screwed into stainless steel helical bellows, be screwed into length free, then internal thread connection pipe fitting is inserted, its gradient reducing precursor and gradient reducing through hole can seamlessly push against, then the fastening of hexagonal outside thread are manually tightened with the mouth of pipe internal thread of internal thread connection pipe fitting and be connected.
The utility model provides a kind of stainless steel helical bellows internal thread connecting piece, compared to existing technology, its beneficial effect is: only with the Placement of pure machinery, realize the closely stable connection between stainless steel helical bellows and internal thread connection pipe fitting, its structure is simple, technique is advanced, sealing and keep away water-based can be good, durable in use.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cross-sectional view of internal thread connection pipe fitting of the present utility model;
Fig. 3 be in embodiment one stainless steel helical bellows be connected with internal thread connection pipe fitting after cross-sectional view;
In figure, 1, stainless steel helical bellows; 2, internal thread connection pipe fitting; 3, internal thread seal rubber pad; 4, hexagonal outside thread fastening; 5, internal thread; 6, outside thread; 7, mouth of pipe internal thread; 8, gradient reducing through hole; 9, gradient reducing precursor.
Embodiment
In order to make the utility model object, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment one:
As shown in Figure 1 to Figure 3, a kind of stainless steel helical bellows internal thread connecting piece, comprise stainless steel helical bellows 1, also comprise the internal thread connection pipe fitting 2 of three-way type, internal thread seal rubber pad 3, hexagonal outside thread fastening 4, its mouth of pipe place of described internal thread connection pipe fitting 2 is provided with mouth of pipe internal thread 7, and described mouth of pipe internal thread 7 is provided with concentric gradient reducing through hole 8 rearward; Described internal thread seal rubber pad 3 is threaded cast, its structure comprises internal thread 5 and gradient reducing precursor 9, described internal thread 5 and gradient reducing precursor 9 concentric, the outer surface thread of described internal thread 5 and stainless steel helical bellows 1 matches, and size dimension and the gradient reducing through hole 8 of described gradient reducing precursor 9 match; Described hexagonal outside thread fastening 4 is cast, and its front end is provided with outside thread 6, and described outside thread 6 and mouth of pipe internal thread 7 match.
Further, the length of described internal thread seal rubber pad 3 add the length of outside thread 6 and, the length being more than or equal to gradient reducing through hole 8 add the length of mouth of pipe internal thread 7 and.The outside thread 6 of such hexagonal outside thread fastening 4 can be screwed into internal thread connection pipe fitting 2 completely, ensure that the sealing of stainless steel helical bellows internal thread connecting piece.
Further, the profile of described hexagonal outside thread fastening 4 is similar to hexagon head hollow bolt.Be convenient to manually hexagonal outside thread fastening 4 is screwed into internal thread connection pipe fitting 2, without the need to by other instruments.
Further, described internal thread connection pipe fitting 2, hexagonal outside thread fastening 4 all select stainless steel material to make, identical with the material of stainless steel helical bellows 1.
Further, the outer diameter of described stainless steel helical bellows 1 is less than the inner diameter of hexagonal outside thread fastening 4.
Further, the maximum diameter of described internal thread seal rubber pad 3 is less than the mouth of pipe inner diameter of internal thread connection pipe fitting 2.Because internal thread seal rubber pad 3 needs to insert internal thread connection pipe fitting 2 inside.
Working principle: first internal thread seal rubber pad 3 is screwed into stainless steel helical bellows 1, be screwed into length free, then internal thread connection pipe fitting 2 is inserted, its gradient reducing precursor 9 and gradient diameter bore 8 can seamlessly push against, then hexagonal outside thread fastening 4 are manually tightened with the mouth of pipe internal thread 7 of internal thread connection pipe fitting 2 and be connected.
The utility model is only with the Placement of pure machinery, and to achieve between stainless steel helical bellows 1 with internal thread connection pipe fitting 2 closely stable is connected, and its structure is simple, and technique is advanced, sealing and to keep away water-based energy good, durable in use.
At present, domesticly there is no stainless steel helical bellows internal thread connecting piece, the application of this technology, one is the blank can filling up domestic stainless steel helical bellows internal thread connecting piece; Two is make stainless steel helical bellows 1 large-scale popularization and application; Three is that achievement stainless steel helical bellows 1 secretly buries at building field and bends construction; Four is that the floor heating of large-scale popularization stainless steel helical bellows uses.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The three-way type structure of such as internal thread connection pipe fitting 2 can change through-type or four flow-throughs according to specific needs into; Hexagonal outside thread fastening 4 can substitute with plastic materials manufacture, also can manufacture non-hexangle type etc.
Claims (6)
1. a stainless steel helical bellows internal thread connecting piece, comprise stainless steel helical bellows (1), it is characterized in that: also comprise internal thread connection pipe fitting (2), internal thread seal rubber pad (3), hexagonal outside thread fastening (4), described its mouth of pipe place of internal thread connection pipe fitting (2) is provided with mouth of pipe internal thread (7), and described mouth of pipe internal thread (7) is provided with concentric gradient reducing through hole (8) rearward; Described internal thread seal rubber pad (3) is threaded cast, its structure comprises internal thread (5) and gradient reducing precursor (9), described internal thread (5) and gradient reducing precursor (9) are with one heart, the outer surface thread of described internal thread (5) and stainless steel helical bellows (1) matches, and size dimension and the gradient reducing through hole (8) of described gradient reducing precursor (9) match; Described hexagonal outside thread fastening (4) is cast, and its front end is provided with outside thread (6), and described outside thread (6) and mouth of pipe internal thread (7) match.
2. stainless steel helical bellows internal thread connecting piece according to claim 1, it is characterized in that: the length of described internal thread seal rubber pad (3) add the length of outside thread (6) and, the length being more than or equal to gradient reducing through hole (8) add the length of mouth of pipe internal thread (7) and.
3. stainless steel helical bellows internal thread connecting piece according to claim 1, is characterized in that: the profile of described hexagonal outside thread fastening (4) is similar to hexagon head hollow bolt.
4. stainless steel helical bellows internal thread connecting piece according to claim 1, is characterized in that: described internal thread connection pipe fitting (2), hexagonal outside thread fastening (4) all select stainless steel material to make.
5. stainless steel helical bellows internal thread connecting piece according to claim 1, is characterized in that: the outer diameter of described stainless steel helical bellows (1) is less than the inner diameter of hexagonal outside thread fastening (4).
6. stainless steel helical bellows internal thread connecting piece according to claim 1, is characterized in that: the maximum diameter of described internal thread seal rubber pad (3) is less than the mouth of pipe inner diameter of internal thread connection pipe fitting (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378792.6U CN204717168U (en) | 2015-06-05 | 2015-06-05 | Stainless steel helical bellows internal thread connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378792.6U CN204717168U (en) | 2015-06-05 | 2015-06-05 | Stainless steel helical bellows internal thread connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717168U true CN204717168U (en) | 2015-10-21 |
Family
ID=54316169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520378792.6U Expired - Fee Related CN204717168U (en) | 2015-06-05 | 2015-06-05 | Stainless steel helical bellows internal thread connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717168U (en) |
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2015
- 2015-06-05 CN CN201520378792.6U patent/CN204717168U/en not_active Expired - Fee Related
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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: 20151021 Termination date: 20160605 |