CN203926304U - Bolt connection pair - Google Patents
Bolt connection pair Download PDFInfo
- Publication number
- CN203926304U CN203926304U CN201420350824.7U CN201420350824U CN203926304U CN 203926304 U CN203926304 U CN 203926304U CN 201420350824 U CN201420350824 U CN 201420350824U CN 203926304 U CN203926304 U CN 203926304U
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- cross
- section
- column
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model provides a kind of bolt connection pair, it includes a bolt and a nut, nut activity screws on the screw rod of bolt, the cross section of the bolt head of nuts and bolt is equilateral hexagon, and nut is being screwed in the direction of screw rod and bolt head all extends in the direction towards nut is provided with one cube of shell of column; Outside the cross section of cube shell of column, be cut in the cross section of bolt head and nut, and cube shell of column and bolt head and nut coaxial inner conductor; Bolt connection pair also includes at least one external member, and external member is that cross section is the equilateral hexagon that is greater than the cross section of screw bolt and nut; In external member, offer the groove that a cross section is identical with the cross section of cube shell of column; External member is sheathed on cube shell of column.By setting up cube shell of column and external member, make in the situation that sliding tooth occurs or crumble while contacting the lock state of bolt connection pair, still can unlock.
Description
Technical field
The utility model relates to a kind of bolt connection pair.
Background technique
At present, bolt, after locking, screws nut to remove locking state counterclockwise by instruments such as spanners.In the situation that having, for example need long-term to use therefore that bolt is lockedly with excessive power, or exist in the situation of expanding with heat and contract with cold when bolt is stuck, often need very large torsion with releasing locking state.
In these cases, likely occur to cause because of bolt, slide nut tooth the difficult situation that cannot remove locking state.If improved by the integral material intensity to bolt connection pair, can increase cost undoubtedly, and, can not eradicate the phenomenon of sliding tooth.Once there is bolt, slide nut tooth, the measure that can remedy and limited.
Model utility content
The technical problems to be solved in the utility model is sliding tooth may occur cause the defect that cannot remove locking state in order to overcome prior art, and a kind of bolt connection pair that can more easily remove locking state is provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of bolt connection pair, it includes a bolt and a nut, described nut activity screws on the screw rod of described bolt, the cross section of the bolt head of described nut and described bolt is equilateral hexagon, its feature is, described nut is being screwed in the direction of described screw rod and described bolt head all extends in the direction towards described nut is provided with one cube of shell of column;
Outside the cross section of described cube of shell of column, be cut in the cross section of described bolt head and described nut, and described cube of shell of column and described bolt head and described nut coaxial inner conductor;
Described bolt connection pair also includes at least one external member, and described external member is that cross section is the equilateral hexagon that is greater than the cross section of described bolt and described nut;
In described external member, offer the groove that a cross section is identical with the cross section of described cube of shell of column;
Described external member is sheathed on described cube shell of column.
Herein, due to the nut of cube with respect to the hexagonal outside of standard piece, its structure is more firm, when carrying out locking state releasing (unclamping bolt, nut), when if there is sliding tooth in the nut of hexagonal outside or bolt head or the situation such as crumble cannot screw, above-mentioned external member is sheathed on cube shell of column, then screws with the instruments such as spanner of large size more.
That is to say, when locking, do not need to load onto external member.Only, when unclamping nut etc. and run into the situations such as sliding tooth and cannot carry out operation, just external member is loaded onto.
Because external member can adopt the Steel material that yield strength is higher, make, bolt connection pair body does not need to adopt extra high-intensity material, therefore can be cost-saving to offset the cost of setting up cube shell of column.And even if external member crumbles again or sliding tooth, only need to change a new external member can proceed operation.
Preferably, on described cube of shell of column end face near described screw rod, be provided with a flange.
Herein, this flange is for the location of being inserted in to external member.
Positive progressive effect of the present utility model is: by setting up cube shell of column and external member, make in the situation that sliding tooth occurs or crumble while contacting the lock state of bolt connection pair, still can unlock.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bolt connection pair of the utility model preferred embodiment.
Fig. 2 is the structural representation of the external member of the utility model preferred embodiment.
Fig. 3 is the structural representation of cross section of the external member of the utility model preferred embodiment.
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Fig. 1 is the structural representation of the bolt connection pair of the present embodiment, Fig. 2 is the structural representation of the external member of the present embodiment, Fig. 3 is the structural representation of cross section of the external member of the present embodiment, the bolt connection pair that the present embodiment relates to as shown in Figures 1 to 3 includes screw bolt and nut 3, nut 3 activities screw on the screw rod 2 of bolt, the cross section of the bolt head 1 of nut 3 and bolt is equilateral hexagon, it is characterized in that, nut 3 in the direction that is screwed into screw rod 2 and bolt head 1 in the direction towards nut 3, all extend be provided with cube shell of column 4.
Outside the cross section of cube shell of column 4, be cut in the cross section of bolt head 1 and nut 3, and cube shell of column 4 and bolt head 1 and nut 3 coaxial inner conductors.
Bolt connection pair also includes external member 6, external member 6 for cross section be the equilateral hexagon that is greater than the cross section of screw bolt and nut 3.
In external member 6, offer the groove 61 that cross section is identical with the cross section of cube shell of column 4;
External member 6 is sheathed on cube shell of column 4.
On cube end face of shell of column 4 near screw rod 2, be provided with flange 5.
When locking, do not need to load onto external member 6.Only, unclamping nut 3 grades when running into the situations such as sliding tooth and cannot carry out operation, just external member 6 is loaded onto.
Because external member 6 can adopt the Steel material that yield strength is higher, make, bolt connection pair body does not need to adopt extra high-intensity material, therefore can be cost-saving to offset the cost of setting up cube shell of column 4.And even if external member 6 crumbles again or sliding tooth, only need to change a new external member 6 can proceed operation.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these changes and modification all fall into protection domain of the present utility model.
Claims (2)
1. a bolt connection pair, it includes a bolt and a nut, described nut activity screws on the screw rod of described bolt, the cross section of the bolt head of described nut and described bolt is equilateral hexagon, it is characterized in that, described nut is being screwed in the direction of described screw rod and described bolt head all extends in the direction towards described nut is provided with one cube of shell of column;
Outside the cross section of described cube of shell of column, be cut in the cross section of described bolt head and described nut, and described cube of shell of column and described bolt head and described nut coaxial inner conductor;
Described bolt connection pair also includes at least one external member, and described external member is that cross section is the equilateral hexagon that is greater than the cross section of described bolt and described nut;
In described external member, offer the groove that a cross section is identical with the cross section of described cube of shell of column;
Described external member is sheathed on described cube shell of column.
2. bolt connection pair as claimed in claim 1, is characterized in that, on described cube of shell of column end face near described screw rod, is provided with a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350824.7U CN203926304U (en) | 2014-06-27 | 2014-06-27 | Bolt connection pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350824.7U CN203926304U (en) | 2014-06-27 | 2014-06-27 | Bolt connection pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926304U true CN203926304U (en) | 2014-11-05 |
Family
ID=51822119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420350824.7U Expired - Lifetime CN203926304U (en) | 2014-06-27 | 2014-06-27 | Bolt connection pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926304U (en) |
-
2014
- 2014-06-27 CN CN201420350824.7U patent/CN203926304U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |