CN205173174U - Staying formula bolt assembly - Google Patents
Staying formula bolt assembly Download PDFInfo
- Publication number
- CN205173174U CN205173174U CN201520996694.9U CN201520996694U CN205173174U CN 205173174 U CN205173174 U CN 205173174U CN 201520996694 U CN201520996694 U CN 201520996694U CN 205173174 U CN205173174 U CN 205173174U
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- bolt
- installation component
- screw thread
- bolt assembly
- polished rod
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Abstract
The utility model discloses a staying formula bolt assembly, this kind of staying formula bolt assembly include bolt and installation component, and the bolt is used for installation components are installed in the component in the external world, and the bolt includes cap portion, polished rod portion and the screw thread portion that sets gradually, and the external diameter of polished rod portion is less than the screw thread path of screw thread portion, and the installation component is equipped with the screw hole with the screw thread screw -thread fit of portion to make the bolt twist and moor on the installation component. Above -mentioned staying formula bolt assembly is behind the screw hole of the wrong income installation component of screw thread portion of bolt, because the external diameter of polished rod portion is less than the screw thread path of screw thread portion, polished rod portion accessible screw hole to sheltering from of screw thread portion and cap portion can make the bolt moor on the installation component, is difficult to drop from the installation component. Above -mentioned staying formula bolt assembly structural design is simple, the integrated level is high, and during installation / dismantlement, the bolt can not the drop, can effectively reduce incidents emergences such as misloading, neglected loading to installation / dismantlement is convenient, save time and cost.
Description
Technical field
The utility model relates to bolt field, especially, relates to a kind of captive bolt assembly.
Background technique
At present, as shown in Figure 1, bolt 2 passes from the through hole of one or more component 1 and is screwed into the tapped hole of another component 1 conventional bolt fastening structure; Or bolt 2, through after the through hole of two or more component 1, uses nut screwing clamping.The feature of this structure is the part such as installation component 1, bolt 2 is separate, after dismounting, is loose mail separately, does not become one.After dismounting, bolt 2 grade is easily lost, particularly bolt 2 head down time, easy drop in attaching/detaching process; Part such as bolt 2 grade disperses, and during installation and removal, easily fall into the places such as the inner chamber of installation component 1, small space, when falling into rear taking-up bolt 2, the operating space of requirement is larger; Part such as bolt 2 grade disperses, and is not easy to keeping, increases warehousing management cost.
Model utility content
The utility model provides a kind of captive bolt assembly, to solve installation component and bolt is separate, is the technical problem of loose mail after dismounting separately.
The technical solution adopted in the utility model is as follows:
A kind of captive bolt assembly, comprise bolt and installation component, bolt is for being installed on extraneous component by installation component, bolt comprise set gradually cap portion, polished rod portion and screw section, the external diameter in polished rod portion is less than the diameter of thread of screw section, installation component is provided with the tapped hole coordinated with threaded portion, is screwed into and is tethered on installation component to make bolt.
Further, component is provided with the counterbore for holding bolt, and counterbore and tapped hole are coaxially arranged, and the internal diameter of counterbore is greater than the Major Diam of screw section.
Further, the hole depth of counterbore is greater than the length of screw section.
Further, bolt sleeve is provided with pad, and pad is between cap portion and installation component.
Further, periphery, cap portion is provided with the teeth portion coordinated with spanner.
Further, the upper-end surface in cap portion is provided with the endoporus coordinated with spanner or screw-driver.
The utility model has following beneficial effect: above-mentioned captive bolt assembly, after the screw section of bolt is screwed into the tapped hole of installation component, external diameter due to polished rod portion is less than the diameter of thread of screw section, polished rod portion is by tapped hole, and blocking of screw section and cap portion, bolt can be made to be tethered on installation component, to be not easy to drop from installation component.Above-mentioned captive bolt assembly structural design is simple, level of integration is high, and during attaching/detaching, bolt can not drop, and the event such as misloading, neglected loading that can effectively reduce occurs, and attaching/detaching is convenient, saves man-hour and cost.Bolt mooring is on installation component, and convenient unified storage is taken care of.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of existing bolt assembly;
Fig. 2 is a using state schematic diagram of the captive bolt assembly of the utility model preferred embodiment;
Fig. 3 is another using state schematic diagram of the captive bolt assembly of the utility model preferred embodiment.
Description of reference numerals: 100, bolt; 200, installation component; 300, pad; 110, cap portion; 120, polished rod portion; 130, screw section; 140, teeth portion; 210, tapped hole; 220, counterbore.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 2 and Fig. 3, preferred embodiment of the present utility model provides a kind of captive bolt assembly, comprise bolt 100 and installation component 200, bolt 100 is for being installed on extraneous component by installation component 200, bolt 100 comprise set gradually cap portion 110, polished rod portion 120 and screw section 130, the external diameter in polished rod portion 120 is less than the diameter of thread of screw section 130, installation component 200 is provided with the tapped hole 210 with screw section 130 screw-thread fit, is screwed into and is tethered on installation component 200 to make bolt 100.
The cap portion 110 of bolt 100 and screw section 130 arrange the two ends with polished rod portion 120 respectively, and screw section 130 is axially protruding from polished rod portion 120, and its diameter of thread is greater than the external diameter in polished rod portion 120.Existing installation component generally offers threadless straight hole, for bolt by and installation component is fixed on other components.The installation component 200 of the application is provided with tapped hole 210, and screw section 130 can be screwed into tapped hole 210.External diameter due to polished rod portion 120 is less than the diameter of thread of screw section 130, and polished rod portion 120 is by tapped hole 210.Screw section 130 can continue to turn to the tapped hole 210 of other components fixing downwards, makes installation component 200 and the fastening installation of other component.After dismounting, due to and blocking of screw section 130 and cap portion 110, bolt 100 can be made to be tethered on installation component 200, to be not easy to drop from installation component 200.
The utility model has following beneficial effect: above-mentioned captive bolt assembly, after the screw section 130 of bolt 100 is screwed into the tapped hole 210 of installation component 200, external diameter due to polished rod portion 120 is less than the diameter of thread of screw section 130, polished rod portion 120 is by tapped hole 210, and blocking of screw section 130 and cap portion 110, bolt 100 can be made to be tethered on installation component 200, to be not easy to drop from installation component 200.Above-mentioned captive bolt assembly structural design is simple, level of integration is high, and during attaching/detaching, bolt 100 can not drop, and the event such as misloading, neglected loading that can effectively reduce occurs, and attaching/detaching is convenient, saves man-hour and cost.Bolt 100 mooring is on installation component 200, and convenient unified storage is taken care of.
With reference to Fig. 2 and Fig. 3, alternatively, component is provided with the counterbore 220 for holding bolt 100, and counterbore 220 and tapped hole 210 are coaxially arranged, and the internal diameter of counterbore 220 is greater than the Major Diam of screw section 130.When installation component 200 is not fixed with other Components installation, bolt 100 can partly be retracted in counterbore 220, makes the screw section 130 of bolt 100 be exposed to the part of installation component 200 less, reduces its screw thread and other parts generation grazing, cause thread damage, or other parts of scratch.
With reference to Fig. 2 and Fig. 3, alternatively, the hole depth of counterbore 220 is greater than the length of screw section 130.When this design can make installation component 200 not fix with other Components installation, bolt 100 can be retracted in counterbore 220 completely, and the screw section 130 of bolt 100 can be retracted in counterbore 220 completely, reduces its screw thread and other parts generation grazing, cause thread damage, or other parts of scratch.Be convenient to looser a bolt 100, when avoiding loosering a bolt 100, screw section 130 part enters in the tapped hole 210 of installation component 200 simultaneously.
With reference to Fig. 2 and Fig. 3, alternatively, bolt 100 is arranged with pad 300, and pad 300 is between cap portion 110 and installation component 200.The pressure that pad 300 can reduce bolt 100 pairs of installation components 200 is set, and due to the stop of cap portion 110 and installation component 200, pad 300 can not drop from bolt 100.Mount and dismount more convenient.
Alternatively, periphery, cap portion 110 is provided with the teeth portion 140 coordinated with spanner.Teeth portion 140 is the teeth portion 140 of three teeth, six teeth or other quantity, is convenient to tighten or looser a bolt 100.
Alternatively, the upper-end surface in cap portion 110 is provided with the endoporus coordinated with spanner or screw-driver.Endoporus can be the endoporus of triangle, hexagonal or other quantity coordinated with spanner, or coordinates a word or cross endoporus with screw-driver, is convenient to tighten or looser a bolt 100.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a captive bolt assembly, it is characterized in that, comprise bolt (100) and installation component (200), described bolt (100) is for being installed on extraneous component by described installation component (200), described bolt (100) comprises the cap portion (110) set gradually, polished rod portion (120) and screw section (130), the external diameter of described polished rod portion (120) is less than the diameter of thread of described screw section (130), described installation component (200) is provided with the tapped hole (210) with described screw section (130) screw-thread fit, be screwed into make described bolt (100) and be tethered on described installation component (200).
2. captive bolt assembly according to claim 1, it is characterized in that, described component is provided with the counterbore (220) for holding described bolt (100), described counterbore (220) and described tapped hole (210) are coaxially arranged, and the internal diameter of described counterbore (220) is greater than the Major Diam of described screw section (130).
3. captive bolt assembly according to claim 2, is characterized in that, the hole depth of described counterbore (220) is greater than the length of described screw section (130).
4. captive bolt assembly according to claim 1, it is characterized in that, described bolt (100) is arranged with pad (300), and described pad (300) is positioned between described cap portion (110) and described installation component (200).
5. the captive bolt assembly according to any one of Claims 1 to 4, is characterized in that, described cap portion (110) periphery is provided with the teeth portion (140) coordinated with spanner.
6. the captive bolt assembly according to any one of Claims 1 to 4, is characterized in that, the upper-end surface of described cap portion (110) is provided with the endoporus coordinated with spanner or screw-driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996694.9U CN205173174U (en) | 2015-12-03 | 2015-12-03 | Staying formula bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996694.9U CN205173174U (en) | 2015-12-03 | 2015-12-03 | Staying formula bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173174U true CN205173174U (en) | 2016-04-20 |
Family
ID=55737174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996694.9U Active CN205173174U (en) | 2015-12-03 | 2015-12-03 | Staying formula bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486286A (en) * | 2016-10-14 | 2017-03-08 | 中车株洲电力机车研究所有限公司 | Electric capacity clamp device |
-
2015
- 2015-12-03 CN CN201520996694.9U patent/CN205173174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486286A (en) * | 2016-10-14 | 2017-03-08 | 中车株洲电力机车研究所有限公司 | Electric capacity clamp device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |