CN202012552U - Large-pitch bolt assembly - Google Patents
Large-pitch bolt assembly Download PDFInfo
- Publication number
- CN202012552U CN202012552U CN2011200715631U CN201120071563U CN202012552U CN 202012552 U CN202012552 U CN 202012552U CN 2011200715631 U CN2011200715631 U CN 2011200715631U CN 201120071563 U CN201120071563 U CN 201120071563U CN 202012552 U CN202012552 U CN 202012552U
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- China
- Prior art keywords
- pitch
- screw
- thread
- bolt assembly
- nut
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- 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 large-pitch bolt assembly. The large-pitch bolt assembly comprises a screw, a screw cap and a nut, wherein the screw cap is arranged at the end part of the screw; the nut is matched with the screw; the pitch of the external thread of the screw is 1 to 4 mm; the thread groove depth of the external thread is 1.5 to 3 mm; the pitch of the internal thread of the nut corresponds to that of the external screw of the screw; and the thread groove depth of the internal screw is less than that of the external screw. The large-pitch bolt assembly has a simple structure, can bear a large fastening force when applied to occasions with silt such as a building site and the like, is difficult to damage and greatly prolongs the service life. Even if large-granule viscous solid substances drop off into the thread groove in the process of building a scaffold, reuse of the bolt is not influenced and repeated utilization ratio of the bolt assembly is improved.
Description
Technical field
The utility model relates to a kind of connecting bolt, particularly relates to a kind of bolt assembly of using when scaffold is set up in the building site of being used for.
Background technique
In the building site and other need set up the place of scaffold, use connecting bolt to carry out the fixing of scaffold usually.Present connecting bolt mostly is the T-bolt assembly of standard pitch greatly, and wherein the sectional shape of bolt thread (being tooth form) is generally triangle.This T-bolt assembly is in the process of scaffold building; because environment is more abominable; usually having the solid matter that large particles such as cement have viscosity drops in the thread groove of T-bolt; because the thread groove degree of depth of screw thread is the length of national Specification; when oarse-grained cement and sand drop in thread groove; can be stained with whole thread groove; shortened the working life of T-bolt greatly; when dismounting, strengthen difficulty not only for scaffold; but also cause can not reusing of T-bolt, improved construction cost.
The model utility content
It is longer that the utility model technical issues that need to address provide a kind of working life, can reduce scaffold dismounting difficulty, and can reusable bolt assembly.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of large screw pitch bolt assembly, comprise screw rod, be arranged on the screw rod end nut and with the screw rod nut engaged, the surface of screw rod is provided with outside thread, be provided with in the inner bolt hole of nut and the corresponding internal thread of outside thread, the outside thread pitch of described screw rod is 1mm-4mm, the externally threaded thread groove degree of depth is 1.5mm-3mm, and the internal thread pitch of described nut is corresponding with the externally threaded pitch of screw rod, and the thread groove degree of depth of internal thread is less than the externally threaded thread groove degree of depth.
Improvement of the present utility model is: described externally threaded pitch is 2mm, and the externally threaded thread groove degree of depth is 1.75mm, and the pitch of described internal thread is 2mm, and the thread groove degree of depth of internal thread is 1.6mm.
Improvement of the present utility model also is: described internal thread and externally threaded sectional shape be rectangle or trapezoidal in a kind of.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model is simple in structure, and the large screw pitch of screw thread, deep thread groove are provided with, and not only can make it bear bigger fastening force, and not fragile, and prolong working life greatly.The externally threaded thread groove degree of depth of screw rod is greater than the thread groove degree of depth of nut inner thread, can effectively overcome the influence that produces when foreign material in the thread groove outside of dropping are dismantled bolt assembly, even in setting up the scaffold process, there is large particle viscous solid material to drop in thread groove, can not exert an influence yet, improve the utilization ratio of bolt assembly reusing of bolt.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is axial sectional view of the utility model embodiment 2.
Wherein: 1. screw rod, 2. nut, 3. nut, 4. outside thread, 5. internal thread.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details:
A kind of large screw pitch bolt assembly comprises screw rod 1, nut 2 and nut 3, and nut is arranged on the end of screw rod, and nut is screwed on the screw rod.The surface of screw rod is provided with outside thread 4, is provided with internal thread 5 in the inner bolt hole of nut, and outside thread is equipped mutually with internal thread.
Fig. 1 is a kind of T-bolt assembly of large screw pitch, and screw rod and nut are combined to form the T-shaped shape.The outside thread pitch of screw rod is 2mm, and the thread groove degree of depth is 1.75mm, and the internal thread pitch of nut is 2mm, and the thread groove degree of depth of internal thread is 1.6mm.Internal thread and externally threaded sectional shape are trapezoidal.
Fig. 2 is the T-bolt assembly of another kind of large screw pitch, and nut is a hexagonal configuration.The outside thread pitch of screw rod is 1.75mm, and the thread groove degree of depth is 1.7mm, and the internal thread pitch of nut is 1.75mm, and the thread groove degree of depth of internal thread is 1.6mm.The sectional shape of outside thread and internal thread is rectangle in the present embodiment, can effectively improve the fastening force of bolt assembly.
Certainly, the nut of bolt assembly can also be little square head or the first-class shape of fish tail silk in the utility model.
Claims (3)
1. large screw pitch bolt assembly, comprise screw rod (1), be arranged on screw rod (1) end nut (2) and with screw rod nut engaged (3), it is characterized in that: the outside thread pitch of described screw rod is 1mm～4mm, and the externally threaded thread groove degree of depth is 1.5mm～3mm; The internal thread pitch of described nut is corresponding with the outside thread pitch of screw rod, and the thread groove degree of depth of internal thread is less than the externally threaded thread groove degree of depth.
2. a kind of large screw pitch bolt assembly according to claim 1 is characterized in that: described externally threaded pitch is 2mm, and the externally threaded thread groove degree of depth is 1.75mm, and the pitch of described internal thread is 2mm, and the thread groove degree of depth of internal thread is 1.6mm.
3. a kind of large screw pitch bolt assembly according to claim 1 and 2 is characterized in that: described internal thread and externally threaded sectional shape are rectangle or trapezoidal a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200715631U CN202012552U (en) | 2011-03-17 | 2011-03-17 | Large-pitch bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200715631U CN202012552U (en) | 2011-03-17 | 2011-03-17 | Large-pitch bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012552U true CN202012552U (en) | 2011-10-19 |
Family
ID=44783165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200715631U Expired - Fee Related CN202012552U (en) | 2011-03-17 | 2011-03-17 | Large-pitch bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139653A (en) * | 2018-10-31 | 2019-01-04 | 江苏脒诺甫纳米材料有限公司 | The fastener of zircon sand process equipment |
-
2011
- 2011-03-17 CN CN2011200715631U patent/CN202012552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139653A (en) * | 2018-10-31 | 2019-01-04 | 江苏脒诺甫纳米材料有限公司 | The fastener of zircon sand process equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20140317 |