CN204533123U - Enclosed space bolt fastening structure - Google Patents
Enclosed space bolt fastening structure Download PDFInfo
- Publication number
- CN204533123U CN204533123U CN201520207321.9U CN201520207321U CN204533123U CN 204533123 U CN204533123 U CN 204533123U CN 201520207321 U CN201520207321 U CN 201520207321U CN 204533123 U CN204533123 U CN 204533123U
- Authority
- CN
- China
- Prior art keywords
- nut
- closure member
- seam
- bolt
- connected piece
- 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.)
- Active
Links
Abstract
The utility model relates to a kind of linkage structure, especially a kind of enclosed space bolt fastening structure.Disclosed in the utility model, enclosed space bolt fastening structure comprises closure member, connected piece, screw bolt and nut, also comprise nut cap, there is through hole described nut cap inside, described through hole comprises nut bore and seam, the shape of described nut bore is mated with described nut shape, described seam diameter is larger and less than the inscribed circle diameter of described nut bore than the external diameter of described bolt, described nut cap is welded on the madial wall of described closure member, described nut is positioned at described nut bore, connected piece described in described screw bolt passes, closure member sidewall, described closure member and connected piece link together by nut and seam.This linkage structure simple and compact for structure, join strength is high, and also not limit by material welding performance.
Description
Technical field
The utility model relates to a kind of linkage structure, especially a kind of enclosed space bolt fastening structure.
Background technique
At present, the bolt connecting mode of enclosed space has two kinds, and one processes through hole on whole enclosed space, connects with bolt, and by enclosed space effect of structural dimension, Bolt sizes is very long, causes waste of material, and processing inconvenience, see Fig. 1; Another kind is after enclosed space external welding connection assist, and drilling blind hole tapping bolt connects, and this mode exists two problems, and when connection assist selects the good carbon steel of weldability, thread quality can not be up to standard, reduces join strength; If the alloyed steel material selecting thread quality up to standard is to ensure join strength, welding performance again can not be up to standard, reduces join strength equally, see Fig. 2.And nut material is alloyed steel, therefore it directly can not be welded with enclosed space.
Model utility content
Technical problem to be solved in the utility model is to provide and a kind ofly overcomes above deficiency, the simple and compact for structure and enclosed space bolt fastening structure that join strength is high.
The utility model solves the enclosed space bolt fastening structure that its technical problem adopts, comprise closure member, connected piece, screw bolt and nut, also comprise nut cap, there is through hole described nut cap inside, described through hole comprises nut bore and seam, the shape of described nut bore is mated with described nut shape, described seam diameter is larger and less than the inscribed circle diameter of described nut bore than the external diameter of described bolt, described nut cap is welded on the madial wall of described closure member, described nut is positioned at described nut bore, connected piece described in described screw bolt passes, closure member sidewall, described closure member and connected piece link together by nut and seam.
Be further, also comprise packing ring, the through hole of described nut cap inside also comprises the gasket hole mated with described packing ring, described nut bore is between described gasket hole and seam, the diameter of described gasket hole is larger than the external diameter of a circle of described nut bore, described packing ring is positioned at described gasket hole, and described in described screw bolt passes, described closure member and connected piece link together by connected piece, closure member sidewall, packing ring, nut and seam.
Further, the material of described nut cap is low carbon steel.
The beneficial effects of the utility model are: be fixed on the madial wall of closure member owing to using nut cap by nut, save the space that linkage structure takies, nut bore on nut cap can prevent nut rotation, seam can prevent nut from dropping, this structure only just can tight a bolt from outside, and then closure member and connected piece are coupled together, be convenient to install; Nut cap adopts low carbon steel to make, and good welding performance, ensure that the reliability of welding; The material of nut own is alloyed steel, ensure that the intensity of connection.
Accompanying drawing explanation
Fig. 1 is a kind of bolt connection diagram of traditional enclosed space;
Fig. 2 is the bolt connection diagram of another kind of traditional enclosed space;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the structural representation of the nut cap in Fig. 3;
Fig. 5 is the sectional view of Fig. 4;
Fig. 6 is the plan view of Fig. 4;
Fig. 7 is the structural representation of another kind of mode of execution of the present utility model;
Fig. 8 is the structural representation of the nut cap in Fig. 7;
Fig. 9 is the sectional view of Fig. 8;
Figure 10 is the plan view of Fig. 8;
Component, position and numbering in figure: closure member 1, connected piece 2, bolt 3, nut 4, through hole 51, nut bore 511, seam 512, gasket hole 513, packing ring 6, connection assist 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.It should be noted that at this, the explanation for these mode of executions understands the utility model for helping, but does not form restriction of the present utility model.
As shown in Figures 3 to 6, the utility model comprises closure member 1, connected piece 2, bolt 3 and nut 4; Also comprise nut cap 5, there is through hole 51 described nut cap 5 inside, and described through hole 51 comprises nut bore 511 and seam 512; The shape of described nut bore 511 and described nut 4 form fit, its effect is fixed in described nut bore 511 by nut 4, and can prevent nut 4 from rotating; Described seam 512 diameter is larger than the external diameter of described bolt 3, and less than the inscribed circle diameter of described nut bore 511, the effect of seam 512 prevents nut 4 from dropping; Described nut cap 5 is welded on the madial wall of described closure member 1, and described closure member 1 links together with connected piece 2 through described connected piece 2, closure member 1 sidewall, nut 4 and seam 512 by described bolt 3 successively.This linkage structure of the present utility model and the linkage structure structure compared shown in Fig. 1 compacter, take up room little, and unnecessaryly two through holes be set on closure member 1 pass for bolts 3, ensure that the encapsulation of closure member 1; Compared with the linkage structure shown in Fig. 2, eliminate connection assist 7, make bolt 3 directly pass the sidewall of connected piece 2 and closure member 1, improve the intensity of connection; In general, the utility model is simple and compact for structure, economic and practical, not only can ensure join strength, but also does not limit by material welding performance.
Specifically, in order to improve join strength of the present utility model, as shown in Figure 7 to 10, the utility model also comprises packing ring 6, the through hole 51 of described nut cap 5 inside also comprises the gasket hole 513 mated with described packing ring 6, described nut bore 511 is between described gasket hole 513 and seam 512, the diameter of described gasket hole 513 is larger than the external diameter of a circle of described nut bore 511, described packing ring 6 is positioned at described gasket hole 513, the sidewall of described closure member 1 is close in the side at described gasket hole 513 place, described bolt 3 is successively through described connected piece 2, closure member 1 sidewall, packing ring 6, described closure member 1 links together with connected piece 2 by nut 4 and seam 512.Increase packing ring 6 and corresponding gasket hole 513 1 aspect can prevent from loosening between bolt 3 and nut 4, improve the join strength of whole enclosed space bolt fastening structure; The area of contact between nut 4 and closure member 1 sidewall can be increased on the other hand, reduce the pressure between them, increase the life-span of linkage structure.
Effect due to nut bore 511 is set screw nut 4, prevents nut 4 from rotating, and so the shape of nut bore 511 can be other shapes, such as quadrilateral, triangle etc.
Specifically, in order to ensure the welding performance of nut cap 5, the material of described nut cap 5 is low carbon steel.Low carbon steel intensity is low, hardness is low, and plasticity and toughness better, have good welding performance.
Claims (3)
1. enclosed space bolt fastening structure, comprises closure member (1), connected piece (2), bolt (3) and nut (4), it is characterized in that: also comprise
Nut cap (5), there is through hole (51) described nut cap (5) inside, and described through hole (51) comprises nut bore (511) and seam (512),
The shape of described nut bore (511) and described nut (4) form fit,
Described seam (512) diameter is larger and less than the inscribed circle diameter of described nut bore (511) than the external diameter of described bolt (3),
Described nut cap (5) is welded on the madial wall of described closure member (1),
Described nut (4) is positioned at described nut bore (511),
Described closure member (1) and connected piece (2) link together through described connected piece (2), closure member (1) sidewall, nut (4) and seam (512) by described bolt (3) successively.
2. enclosed space bolt fastening structure according to claim 1, is characterized in that: also comprise packing ring (6),
The through hole (51) of described nut cap (5) inside also comprises the gasket hole (513) mated with described packing ring (6),
Described nut bore (511) is positioned between described gasket hole (513) and seam (512),
The diameter of described gasket hole (513) is larger than the external diameter of a circle of described nut bore (511),
Described packing ring (6) is positioned at described gasket hole (513),
Described closure member (1) and connected piece (2) link together through described connected piece (2), closure member (1) sidewall, packing ring (6), nut (4) and seam (512) by described bolt (3) successively.
3. enclosed space bolt fastening structure according to claim 2, is characterized in that:
The material of described nut cap (5) is low carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207321.9U CN204533123U (en) | 2015-04-08 | 2015-04-08 | Enclosed space bolt fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207321.9U CN204533123U (en) | 2015-04-08 | 2015-04-08 | Enclosed space bolt fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533123U true CN204533123U (en) | 2015-08-05 |
Family
ID=53747132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520207321.9U Active CN204533123U (en) | 2015-04-08 | 2015-04-08 | Enclosed space bolt fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763721A (en) * | 2015-04-08 | 2015-07-08 | 四川建设机械（集团）股份有限公司 | Bolted connecting structure inside enclosed space and connecting method |
-
2015
- 2015-04-08 CN CN201520207321.9U patent/CN204533123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763721A (en) * | 2015-04-08 | 2015-07-08 | 四川建设机械（集团）股份有限公司 | Bolted connecting structure inside enclosed space and connecting method |
| CN104763721B (en) * | 2015-04-08 | 2017-01-11 | 四川建设机械（集团）股份有限公司 | Bolted connecting structure inside enclosed space and connecting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201906858U (en) | Pipeline operating tool | |
| CN204533123U (en) | Enclosed space bolt fastening structure | |
| CN204099779U (en) | A kind of rare metal equipment sealing flange | |
| CN203281369U (en) | Connection device for big gear and cylinder body of ball mill | |
| CN209083772U (en) | A kind of bolt | |
| CN204226390U (en) | A kind of novel high-strength cylinder bolt | |
| CN104763721A (en) | Bolted connecting structure inside enclosed space and connecting method | |
| CN204651819U (en) | cable bridge horizontal elbow | |
| CN203081985U (en) | Sealing washer used for large bolt | |
| CN203516398U (en) | Self-locking bolt | |
| CN204962019U (en) | Broken coal pressure gasification ashes locking -valve head | |
| CN205013433U (en) | Adopt hydro -cylinder of novel connected mode | |
| CN204373993U (en) | The structure for pressure test of pressure vessel bevel for welding sealing | |
| CN204692593U (en) | A kind of evacuation valve | |
| CN207195663U (en) | A kind of chain breaks machine dust-proof sealing device | |
| CN204878214U (en) | Can convenient brill tail screw of replacing behind smooth tooth | |
| CN203780991U (en) | Sealing oil drum | |
| CN202813673U (en) | Steel tube structure for air conditioner | |
| CN204187174U (en) | Welding neckflange | |
| CN204328288U (en) | The accessory that confluxes of reducing multi-pipeline access | |
| CN203500613U (en) | Self-locating all-welded ball valve | |
| CN207032317U (en) | Town road well lid fixing device | |
| CN203622376U (en) | Nail shooter frame | |
| CN202742279U (en) | Installing spanner for flange screw rod | |
| CN201687388U (en) | Limiting device for turntable structure of rotary digging and drilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |