CN209278292U - Intumescent bolt arrangement - Google Patents
Intumescent bolt arrangement Download PDFInfo
- Publication number
- CN209278292U CN209278292U CN201821926644.3U CN201821926644U CN209278292U CN 209278292 U CN209278292 U CN 209278292U CN 201821926644 U CN201821926644 U CN 201821926644U CN 209278292 U CN209278292 U CN 209278292U
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- bolt
- swollen
- thread segment
- intumescent
- expansion
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Abstract
The utility model relates to fastenings fields, especially one kind allows swollen shell even inflation, to effectively disperse anchor force, improve the anchor force of expansion bolt and the intumescent bolt arrangement of durability, including the bolt body being made of thread segment and expansion bolt section, it is socketed outside the expansion bolt section and is provided with swollen shell structure, it is socketed outside thread segment and is provided with nut structure, the wall thickness of the swollen shell structure is along expansion bolt section towards fitting closely for the inner wall of progressive additive and swollen shell structure with expansion bolt section outside wall surface on the direction of thread segment.The disadvantage that the utility model effectively overcomes original bolt arrangement fastening force small and vulnerable, to allow to widely be applied in the anchor structure more demanding to fastening force, it is particularly suitable for fastening of the object more demanding to anchor force on the materials such as cement, brick.
Description
Technical field
The utility model relates to fastenings field, especially a kind of intumescent bolt arrangement.
Background technique
The fixation of setscrew is that expansion is promoted to generate friction bond stress using shape gradient is taken along, and reaches fixed effect.
One, bolt is screw thread, and one has vertebra degree.One iron sheet cylinder of outer bread, iron sheet cylinder half have several notch, they one
It rises and fills in the hole accomplished fluently on wall, then locknut, nut pull outward screw rod, and vertebra degree is pulled in iron sheet cylinder, iron sheet cylinder
By spreading, then it is tightly secured on wall.Common expansion bolt deposits disadvantage both ways.(1) common expansion bolt iron sheet is all
Uniform thickness, and bolt to take along shape gradient larger, bolt is when expanding stress, between screw rod and the swollen shell of iron sheet and the swollen shell of iron sheet
Be line stress (i.e. between the swollen shell of screw rod and iron sheet contact point one enclose) between the hole wall of periphery, be not uniform expansion by
Power.The structure of common expansion bolt causes hole wall local pressure excessive, and plastic failure easily occurs in the material of hole wall, so as to cause
Expansive force loss, bolt relaxation.(2) common expansion bolt is after the end of centrum enters iron sheet swollen shell, the maximum of entire screw rod
Swell diameter occurs, and tightens bolt again thereafter, and iron sheet is swollen, and shell is not further added by directly outside, only position being fastened into bolt
Row movement, when leading to bolt fastening, screw rod pull-out is very long, but fastening force cannot effectively improve.
Utility model content
Swollen shell even inflation is allowed the technical problem to be solved by the utility model is to provide one kind, thus effectively dispersion anchoring
Power improves the anchor force of expansion bolt and the intumescent bolt arrangement of durability.
The technical scheme adopted by the utility model to solve the technical problem is as follows: intumescent bolt arrangement, including by screw thread
The bolt body that section and expansion bolt section are constituted, the expansion bolt section are socketed are provided with swollen shell structure outside, are socketed outside thread segment
It is provided with nut structure, the wall thickness of the swollen shell structure is along expansion bolt section towards being progressive additive and swollen on the direction of thread segment
The inner wall of shell structure is fitted closely with expansion bolt section outside wall surface.
Further, the length of the centrum of expansion bolt section is more than half of bolt body length.
Further, being provided with expansion joint structure on the swollen shell structure.
Further, the expansion joint structure is arranged along swollen shell structure central axial direction.
Further, include being socketed on the elastomeric pad of thread segment, the elastomeric pad is set to nut structure and swollen
Between shell structure.
Further, including the rubber sheet gasket for being socketed on thread segment, the rubber sheet gasket is set to elastomeric pad and spiral shell
Between cap structure.
Further, being Detachable connection structure between the rubber sheet gasket and elastomeric pad and thread segment.
Further, the central axis of the central axis of bolt body and swollen shell structure is coaxially arranged.
Further, being Detachable connection structure between thread segment and nut structure.
Further, the expansion bolt angle of expansion bolt section side and expansion bolt section central axis is 3 °.
The beneficial effects of the utility model are: in actual use, when tightening nuts structure, thread segment and swollen can be driven
The bolt body that swollen bolt section is constituted is toward movement outside mounting hole, at this point, since the wall thickness of swollen shell structure is along expansion bolt section direction
Inner wall on the direction of thread segment for progressive additive and swollen shell structure is fitted closely with expansion bolt section outside wall surface, therefore, whole
A swollen shell even inflation of process improves the anchor force and durability of expansion bolt, the utility model to effectively disperse anchor force
The disadvantage for effectively overcoming original bolt arrangement fastening force small and vulnerable, to allow to widely be applied to fastening force
In more demanding anchor structure, it is particularly suitable for fastening of the object more demanding to anchor force on the materials such as cement, brick.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the schematic diagram of bolt body.
Fig. 4 is the schematic diagram of swollen shell structure.
Fig. 5 is the cross-sectional view of swollen shell structure.
Fig. 6 is the schematic diagram of the utility model in actual use.
In the figure, it is marked as bolt body 1, expansion bolt section 11, thread segment 12, nut structure 2, rubber sheet gasket 3, elastic cushion
Piece 4, swollen shell structure 5, expansion joint structure 51, drilling 6, installation carrier 7, anchor force F, swelling stress q, expansion bolt angle α.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Intumescent bolt arrangement as shown in Figures 1 to 6, including the bolt being made of thread segment 12 and expansion bolt section 11
Ontology 1, socket is provided with swollen shell structure 5 to the expansion bolt section 11 outside, is socketed outside thread segment 12 and is provided with nut structure 2, institute
State the wall thickness of swollen shell structure 5 along expansion bolt section 11 towards on the direction of thread segment 12 in progressive additive and swollen shell structure 5
Wall surface is fitted closely with 11 outside wall surface of expansion bolt section.
The utility model by coordinate expansion bolt section 11 5 size of centrum and swollen shell structure, make bolt arrangement its swollen
During swollen, expansion bolt section 11 and swollen 5 uniform stressed of shell structure, swollen shell structure 5 are in the state of overall length even inflation, thus
Reach the requirement for improving anchor force and durability.In actual fabrication, as shown in Figure 1, after swollen shell structure 5 completes, outside
Diameter should be slightly smaller than 11 maximum gauge of expansion bolt section, to smoothly realize the effect of expansion.For specifically used mode
It is such that one, according to assembling after each component of structure fabrication expansion bolt shown in Fig. 1 and Fig. 2, can be used according to different requirements
Common iron or stainless steel steel；Two, it is drilled in the installation position of installation carrier 7 using drilling machine, electric hammer or hand air drill etc.
Obtain drilling 6, drill 6 aperture need and corresponding bolt matching；Three, the nut structure of bolt 2 is screwed onto and thread segment 12
End flush, by expansion bolt squeeze into drilling 6 in；Four, nut structure 2 is unclamped, is then installed by anchoring piece；Five, using general
Logical helper or torsion helper anchor.In conjunction with practical experience, preferably described 11 side of expansion bolt section and expansion bolt section 11
The expansion bolt angle α of central axis is 3 °.
In order to advanced optimize the state of swollen 5 uniform stressed of shell structure, also allowing as far as possible in whole process can be protected
Swollen 5 uniform stressed of shell structure is demonstrate,proved, can choose such scheme: the length of the centrum of expansion bolt section 11 is long for bolt body 1
More than half of degree.As shown in Fig. 2, the length of the centrum of longer expansion bolt section 11, substantially prolongs the row of uniform stressed
Journey range guarantees to guarantee swollen 5 uniform stressed of shell structure in whole process.Wherein, swollen shell structure 5 is expanding in order to prevent
When be destroyed, can choose and add expansion joint structure 51 on swollen shell structure 5.It is preferably described swollen in conjunction with actual using needs
Expansion joint structure 51 is arranged along swollen 5 central axial direction of shell structure.
It is needed in conjunction with actual use, in order to guarantee better expansion effect, preferably such scheme: adds and be socketed on screw thread
The elastomeric pad 4 of section 12, the elastomeric pad 4 are set between nut structure 2 and swollen shell structure 5.At the same time, can also increase
If being socketed on the rubber sheet gasket 3 of thread segment 12, the rubber sheet gasket 3 is set between elastomeric pad 4 and nut structure 2.In order to
Facilitate installation of the later period by anchoring piece, it can be further preferably between the rubber sheet gasket 3 and elastomeric pad 4 and thread segment 12
For Detachable connection structure.
In order to realize the ride comfort of whole stress and movement, such scheme: the central axis of bolt body 1 can choose
The central axis of line and swollen shell structure 5 is coaxially arranged.
It is final to need to install by anchoring piece due in actual use, so can preferably such scheme: thread segment 12
It is Detachable connection structure between nut structure 2.
The disadvantage that the utility model effectively overcomes original bolt arrangement fastening force small and vulnerable, to allow to wider
General is applied in the anchor structure more demanding to fastening force, has very wide market promotion prospect.
Claims (10)
1. intumescent bolt arrangement, described swollen including the bolt body (1) being made of thread segment (12) and expansion bolt section (11)
Swollen bolt section (11) is socketed is provided with swollen shell structure (5) outside, and thread segment (12) is socketed is provided with nut structure (2), feature outside
Be: the wall thickness of the swollen shell structure (5) along expansion bolt section (11) towards on the direction of thread segment (12) for progressive additive and
The inner wall of swollen shell structure (5) is fitted closely with expansion bolt section (11) outside wall surface.
2. intumescent bolt arrangement as described in claim 1, it is characterised in that: the length of the centrum of expansion bolt section (11) is
More than half of bolt body (1) length.
3. intumescent bolt arrangement as described in claim 1, it is characterised in that: be provided with expansion on the swollen shell structure (5)
Crack structure (51).
4. intumescent bolt arrangement as claimed in claim 3, it is characterised in that: the expansion joint structure (51) is along swollen shell structure
(5) central axial direction is arranged.
5. intumescent bolt arrangement as described in claim 1, it is characterised in that: the elastic cushion including being socketed on thread segment (12)
Piece (4), the elastomeric pad (4) are set between nut structure (2) and swollen shell structure (5).
6. intumescent bolt arrangement as claimed in claim 5, it is characterised in that: the rubber pad including being socketed on thread segment (12)
Piece (3), the rubber sheet gasket (3) are set between elastomeric pad (4) and nut structure (2).
7. intumescent bolt arrangement as claimed in claim 6, it is characterised in that: the rubber sheet gasket (3) and elastomeric pad
It (4) is Detachable connection structure between thread segment (12).
8. intumescent bolt arrangement as described in claim 1, it is characterised in that: the central axis and swollen shell of bolt body (1)
The central axis of structure (5) is coaxially arranged.
9. intumescent bolt arrangement as described in claim 1, it is characterised in that: between thread segment (12) and nut structure (2)
For Detachable connection structure.
10. intumescent bolt arrangement as described in claim 1, it is characterised in that: expansion bolt section (11) side with it is swollen
The expansion bolt angle (α) of swollen bolt section (11) central axis is 3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821926644.3U CN209278292U (en) | 2018-11-21 | 2018-11-21 | Intumescent bolt arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821926644.3U CN209278292U (en) | 2018-11-21 | 2018-11-21 | Intumescent bolt arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278292U true CN209278292U (en) | 2019-08-20 |
Family
ID=67602006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821926644.3U Active CN209278292U (en) | 2018-11-21 | 2018-11-21 | Intumescent bolt arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372861A (en) * | 2018-11-21 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Intumescent bolt arrangement |
-
2018
- 2018-11-21 CN CN201821926644.3U patent/CN209278292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372861A (en) * | 2018-11-21 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Intumescent bolt arrangement |
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