CN203613656U - Steel tube flange plate and bolt internal thread connecting structure - Google Patents
Steel tube flange plate and bolt internal thread connecting structure Download PDFInfo
- Publication number
- CN203613656U CN203613656U CN201320835228.3U CN201320835228U CN203613656U CN 203613656 U CN203613656 U CN 203613656U CN 201320835228 U CN201320835228 U CN 201320835228U CN 203613656 U CN203613656 U CN 203613656U
- Authority
- CN
- China
- Prior art keywords
- bolt
- diameter steel
- steel tube
- diameter
- flange plate
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 241000237858 Gastropoda Species 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000579971 Terebridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a steel tube flange plate and bolt internal thread connecting structure. The steel tube flange plate and bolt internal thread connecting structure comprises a large-diameter steel tube, a large-diameter steel tube flange plate, a small-diameter steel tube, a small-diameter steel tube flange plate and a bolt. The large-diameter steel tube is in butt joint with the small-diameter steel tube, and the large-diameter steel tube flange plate and the small-diameter steel tube flange plate are connected through the bolt. An internal threaded hole is formed in the large-diameter steel tube flange plate, the diameter of the internal threaded hole is matched with that of the bolt, a bolt hole is formed in the small-diameter steel tube flange plate, the diameter of the bolt hole is 1.5 mm to 2 mm larger than the diameter of the bolt, the bolt penetrates through the bolt hole in the small-diameter steel tube flange plate and tighten and screwed into the internal threaded hole in the large-diameter steel tube flange plate, and the bolt stretches out of two screw threads of the large-diameter steel tube flange plate. No screw caps are needed in the structure, the requirement for the edge distance between the large-diameter steel tube flange plate and the bolt is lowered, and a bolt head is directly tightened to connect the steel tube flange plates.
Description
Technical field
The utility model relates to the accessory using in a kind of building structure, is specifically related to a kind of steel pipe flange valve snail bolt internal thread syndeton.
Background technology
Existing steel pipe flange dish connects in order to meet bolt construction requirement, bolt needs certain back gauge requirement from steel pipe walls, in the time that the different steel pipe flange dish of external diameter connects, the flange of the minor-diameter steel-tube width that overhangs is larger, greatly reduce coupling stiffness, guarantee that coupling stiffness certainly will increase flange thickness, cause waste of material, increase cost.
Utility model content
The utility model, for the deficiencies in the prior art, provides a kind of steel pipe flange valve snail bolt internal thread syndeton, and this structure does not need nut, reduces the requirement of large diameter steel pipe flange plate bolt back gauge, and a joint steel pipe flange directly tights a bolt.
The utility model is by the following technical solutions: a kind of steel pipe flange valve snail bolt internal thread syndeton, comprises large diameter steel pipe, Large-diameter Steel pipe flange, minor-diameter steel-tube, minor-diameter steel-tube flange and bolt;
Described large diameter steel pipe docks with minor-diameter steel-tube, between Large-diameter Steel pipe flange and minor-diameter steel-tube flange, is bolted;
On described Large-diameter Steel pipe flange, offer internal thread hole, mate with the described diameter of bolt in aperture, on described minor-diameter steel-tube flange, offer bolt hole, large 1.5～the 2mm of the diameter of bolt described in aperture ratio, described bolt is through the bolt hole on minor-diameter steel-tube flange, and tighten in the internal thread hole screwing on Large-diameter Steel pipe flange, bolt length is exposed two screw threads of Large-diameter Steel pipe flange.
As preferably, in the time adopting high-strength bolt, tighten and make generation prestressing force in high-strength bolt.
The utility model does not need bolt nut, bores tapped bolt hole on Large-diameter Steel pipe flange, and on minor-diameter steel-tube flange, auger shell keyhole, tights a bolt, and realizes the connection of two steel pipe flange dishes.
The utility model can be used for, in different diameter of steel tube flange connections, can being widely used in various steel tubular structures.
The beneficial effects of the utility model: in the time that different-diameter steel pipe connects by flange, on Large-diameter Steel pipe flange, internal thread hole does not need to meet the back gauge requirement of bolt construction, thereby reduce the diameter of flange, save material, improve flange coupling stiffness, connect and do not need nut simultaneously, can save link cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model large diameter steel pipe flange plate structure schematic diagram;
Fig. 3 is the utility model minor-diameter steel-tube flange plate structure schematic diagram.
The specific embodiment
Below in conjunction with the specific embodiment and accompanying drawing, the utility model is described further:
As shown in Figure 1,2 and 3, a kind of steel pipe flange valve snail bolt internal thread syndeton, comprises large diameter steel pipe 1, Large-diameter Steel pipe flange 2, minor-diameter steel-tube 3, minor-diameter steel-tube flange 4 and bolt 5;
Described large diameter steel pipe 1 docks with minor-diameter steel-tube 3, between Large-diameter Steel pipe flange 2 and minor-diameter steel-tube flange 4, is connected by bolt 5;
On described Large-diameter Steel pipe flange 2, offer internal thread hole 7, mate with described bolt 5 diameters in aperture, on described minor-diameter steel-tube flange 4, offer bolt hole 6, large 1.5～the 2mm of bolt 5 diameter described in aperture ratio, described bolt 5 is through the bolt hole 6 on minor-diameter steel-tube flange 4, and tighten in the internal thread hole 7 screwing on Large-diameter Steel pipe flange 2, bolt 5 length are exposed 2 two screw threads of Large-diameter Steel pipe flange.In the time adopting high-strength bolt, tighten and make generation prestressing force in high-strength bolt.
The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a steel pipe flange valve snail bolt internal thread syndeton, is characterized in that: comprise large diameter steel pipe, Large-diameter Steel pipe flange, minor-diameter steel-tube, minor-diameter steel-tube flange and bolt;
Described large diameter steel pipe docks with minor-diameter steel-tube, between Large-diameter Steel pipe flange and minor-diameter steel-tube flange, is bolted;
On described Large-diameter Steel pipe flange, offer internal thread hole, mate with the described diameter of bolt in aperture, on described minor-diameter steel-tube flange, offer bolt hole, large 1.5～the 2mm of the diameter of bolt described in aperture ratio, described bolt is through the bolt hole on minor-diameter steel-tube flange, and tighten in the internal thread hole screwing on Large-diameter Steel pipe flange, bolt length is exposed two screw threads of Large-diameter Steel pipe flange.
2. steel pipe flange valve snail bolt internal thread syndeton according to claim 1, is characterized in that: described bolt is for applying prestressed high-strength bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835228.3U CN203613656U (en) | 2013-12-17 | 2013-12-17 | Steel tube flange plate and bolt internal thread connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835228.3U CN203613656U (en) | 2013-12-17 | 2013-12-17 | Steel tube flange plate and bolt internal thread connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613656U true CN203613656U (en) | 2014-05-28 |
Family
ID=50766312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320835228.3U Expired - Lifetime CN203613656U (en) | 2013-12-17 | 2013-12-17 | Steel tube flange plate and bolt internal thread connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203613656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669593A (en) * | 2013-12-17 | 2014-03-26 | 南京工业大学 | Bolt inner thread connection structure of steel pipe flanges |
-
2013
- 2013-12-17 CN CN201320835228.3U patent/CN203613656U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669593A (en) * | 2013-12-17 | 2014-03-26 | 南京工业大学 | Bolt inner thread connection structure of steel pipe flanges |
| CN103669593B (en) * | 2013-12-17 | 2015-12-16 | 南京工业大学 | Steel pipe flange valve snail bolt female connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20151216 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |