CN104976212A - Screw connecting device - Google Patents
Screw connecting device Download PDFInfo
- Publication number
- CN104976212A CN104976212A CN201410134509.5A CN201410134509A CN104976212A CN 104976212 A CN104976212 A CN 104976212A CN 201410134509 A CN201410134509 A CN 201410134509A CN 104976212 A CN104976212 A CN 104976212A
- Authority
- CN
- China
- Prior art keywords
- screw
- faceplate
- rubber ring
- diameter
- insertion case
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims description 32
- 230000037431 insertion Effects 0.000 claims description 32
- 230000003287 optical effect Effects 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a screw connecting device. The screw connecting device comprises a screw, a plug box panel assembly, a rubber ring and an equipment cabinet body. The screw is composed of a slotted screw head, an optical-axial large-diameter end, an optical-axis variable-diameter conic part, an optical-shaft small-diameter end, a thread and a tail conical end. The diameter of the optical-axial large-diameter end of the screw is the same as that of the thread. The diameter of the optical-axis small-diameter end is smaller than the major diameter of the thread. The plug box panel assembly comprises a plug box panel and a boss arranged on the plug box panel. A screw hole used for installing the screw is formed in the boss. A groove is formed in the screw hole. The rubber ring is mounted in the groove. The rubber ring is subjected to elasticoplastic deformation when the screw is inserted into the screw hole of the plug box panel. The screw connecting device solves the problem that in the prior art, a riveting sleeve for riveting a nut is prone to disengagement. The screw connecting device has the beneficial effect that the screw does not disengage from the plug box panel under the condition that the screw is unscrewed.
Description
Technical field
The present invention relates to carrier-borne, vehicle-mounted and onboard electrical equipment technical field, be specifically related to a kind of subrack of screw and the coupling arrangement of rack cabinet.
Background technique
In the rack of carrier-borne, vehicle-mounted and onboard electrical equipment at present, the conveniently maintenance of electronic parts and components and the debugging of circuit board in subrack, subrack is designed to pullable, rack cabinet connects with Multipurpose screw between faceplate of insertion case, when debugging or maintenance, unclamped by screw, subrack pulls out along guide rail; During equipment work, with screw, subrack and rack cabinet are linked together.In order to loss of weight, panel mostly is aluminum alloy material, is riveted in aluminium alloy panel with steel rivet coating nut, tapped hole is had, because screw optical axis end diameter equals diameter of thread, after the complete precession rivet coating nut of screw in rivet coating nut, after subrack and rack cabinet are thrown off, achieve not coming off of screw.Because screw optical axis end diameter equals the path of screw thread, be less than the nominal diameter of the plain cushion corresponding with major diameter of thread and bullet pad, thus plain cushion and bullet pad can not be installed, after panel and rack cabinet being fixed with screw, do not have locking effect, in addition rivet coating nut riveting sleeve very thin thickness, be riveted on after on faceplate of insertion case, electrical equipment is under the examination of long-term harsh mechanical environment, and the riveting sleeve of rivet coating nut is easily thrown off, and causes electrical equipment to damage.
Summary of the invention
The present invention aims to provide a kind of locking, the subrack of screw Drop-proof and the coupling arrangement of rack cabinet.
For reaching above-mentioned purpose, the invention provides a kind of screw attachment device, comprising screw, faceplate of insertion case assembly, rubber ring and rack cabinet; Described screw is bored end by slotted screw head, optical axis bigger diameter end, optical axis variable diameters tapering, optical axis miner diameter end, screw thread and afterbody and is formed, the optical axis bigger diameter end diameter of described screw is identical with the diameter of described screw thread, and described optical axis miner diameter end diameter is less than the large footpath of described screw thread; Described faceplate of insertion case assembly comprises faceplate of insertion case, be located at the boss on described faceplate of insertion case, boss has the screw of mounting screw, screw has groove, described rubber ring is contained in described groove, when in the screw that described screw is inserted into described faceplate of insertion case, described rubber ring elasto plastic deformation.
In some embodiments, described device also comprises bullet pad and plain cushion, and described bullet pad peace cushion cover is on the miner diameter end of described screw, and both can resiliently deformable.Tightening screw, utilizes the resiliently deformable of plain cushion and bullet pad, achieve subrack and rack cabinet fix after locking.
In some embodiments, described groove is annular, and described circular groove has chamfering apart from described faceplate of insertion case boss side, is encased in described circular groove by described rubber ring by described chamfering.
In some embodiments, described circular groove is circle apart from the chamfering that described faceplate of insertion case boss side is opened.
The present invention utilizes a kind of screw, what achieve in subrack and the fastening situation of rack cabinet is locking, utilize O shape rubber ring, achieve under screw unscrews situation, from not coming off faceplate of insertion case, meet the technical requirements of electrical equipment, easy to use, assembly technology is simple, electrical equipment is debugged and has good accessibility with maintenance, guarantee that electrical equipment works stably in a long term.
By reference to the accompanying drawings, according to hereafter illustrate that the description of purport of the present invention can know other aspects of the present invention and advantage by example.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of screw of the present invention;
Fig. 2 is the structural representation of faceplate of insertion case of the present invention (locally) upper bolt aperture;
Fig. 3 is the structural representation of O shape rubber ring of the present invention in the circular groove of faceplate of insertion case screw hole;
Fig. 4 is the structural representation that screw is assembled to faceplate of insertion case;
Fig. 5 is tightening screw, the structural representation that faceplate of insertion case (locally) connects with rack cabinet (locally).
In accompanying drawing, same or analogous reference character represents same or analogous parts.
Embodiment
The present invention is set forth further below in conjunction with accompanying drawing.The preferred embodiment of the present invention is just not used in for helping to set forth the present invention and limits the scope of the invention.The preferred embodiment of the present invention does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician can utilize the present invention well.The present invention is only subject to the restriction of claims and four corner and equivalent.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalence changes and modification fall into the scope of the claims in the present invention equally.
Now describe in detail according to a kind of screw attachment device of the present invention.
Fig. 1 is the structural representation of screw.Screw 4 is bored end 9, optical axis miner diameter end 10, threaded end 11 and afterbody cone end 12 formed by slotted screw head 7, optical axis bigger diameter end 8, optical axis variable diameters, optical axis bigger diameter end 8 diameter of screw 4 is identical with the large footpath of threaded end 11, and the diameter of optical axis miner diameter end 10 is less than the large footpath of threaded end 11.
Fig. 2 is the structural representation of faceplate of insertion case upper bolt aperture of the present invention.The outside of faceplate of insertion case 2 has boss 16, have screw hole 14 in boss 16, have circular groove 15 in screw hole 14, circular groove 15 has rounding 13 apart from boss 16 side of faceplate of insertion case 2.
Fig. 3 is the structural representation of O shape rubber ring of the present invention in faceplate of insertion case 2 screw hole circular groove.O shape rubber ring 1 is encased in circular groove 15 in the screw hole 14 of the boss 16 outside faceplate of insertion case 2.
Fig. 4 is the structural representation that screw is assembled to faceplate of insertion case.First plain cushion 3, bullet pad are nested on the optical axis miner diameter end 10 of screw 4, then by the afterbody cone end 12 of screw 4, utilize the elasto plastic deformation of O shape rubber ring 1, screw 4 is put in the screw hole 14 of faceplate of insertion case 2, diameter due to the optical axis path of screw 4 is less than the elasto plastic deformation of the large footpath of threaded end 11 and O shape rubber ring 1, achieves the Drop-proof of screw 4 from faceplate of insertion case 2.
Fig. 5 is tightening screw, the structural representation that faceplate of insertion case 2 connects with rack cabinet 6.When subrack is fastened on rack by needs, faceplate of insertion case 2 and rack cabinet 6 are fitted, tightening screw 4, subrack and rack are linked together, in the process that screw 4 screws, plain cushion 3 and bullet pad slide into the optical axis bigger diameter end 8 of screw 4 by the variable diameters tapering of screw 4, by plain cushion 3 distortion with bullet pad, achieve subrack fastening after locking; When subrack is separated from rack cabinet 6 by needs, screw out the scyewed joint part of screw 4, pull-out subrack, faceplate of insertion case 2 is separated with rack cabinet 6, simultaneously because the elasto plastic deformation of O shape rubber ring 1 and optical axis miner diameter end 10 diameter of screw 4 are less than the large footpath of threaded end 11, achieve screw 4 from the Drop-proof faceplate of insertion case 2.
Claims (5)
1. a screw attachment device, is characterized in that described coupling arrangement comprises screw, faceplate of insertion case assembly, rubber ring and rack cabinet; Described screw is bored end by slotted screw head, optical axis bigger diameter end, optical axis variable diameters tapering, optical axis miner diameter end, screw thread and afterbody and is formed, the optical axis bigger diameter end diameter of described screw is identical with the diameter of described screw thread, and described optical axis miner diameter end diameter is less than the large footpath of described screw thread; Described faceplate of insertion case assembly comprises faceplate of insertion case, be located at the boss on described faceplate of insertion case, boss has the screw of mounting screw, screw has groove, described rubber ring is contained in described groove, when in the screw that described screw is inserted into described faceplate of insertion case, described rubber ring elasto plastic deformation.
2. coupling arrangement according to claim 1, is characterized in that described device also comprises bullet pad and plain cushion, and described bullet pad peace cushion cover is on the miner diameter end of described screw, and both can resiliently deformable.
3. coupling arrangement according to claim 1 and 2, is characterized in that described rubber ring is O shape.
4. coupling arrangement according to claim 1, it is characterized in that described groove is for annular, described circular groove has chamfering apart from described faceplate of insertion case boss side, is encased in described circular groove by described rubber ring by described chamfering.
5. coupling arrangement according to claim 4, is characterized in that described chamfering is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134509.5A CN104976212A (en) | 2014-04-04 | 2014-04-04 | Screw connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134509.5A CN104976212A (en) | 2014-04-04 | 2014-04-04 | Screw connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104976212A true CN104976212A (en) | 2015-10-14 |
Family
ID=54273039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134509.5A Pending CN104976212A (en) | 2014-04-04 | 2014-04-04 | Screw connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332989A (en) * | 2015-11-13 | 2016-02-17 | 珠海格力电器股份有限公司 | Bolt assembly and electric appliance structure |
| CN108468699A (en) * | 2018-05-09 | 2018-08-31 | 河南森源电气股份有限公司 | A kind of sealing screw component and its attachment screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6053653A (en) * | 1997-05-09 | 2000-04-25 | Sannohashi Corporation | Fastening method, fastening system and bolt used therefor |
| CN201326630Y (en) * | 2008-12-31 | 2009-10-14 | 中国航空工业第一集团公司第六三一研究所 | Unloosening bolt |
| CN102400991A (en) * | 2011-04-29 | 2012-04-04 | 兴威电脑（昆山）有限公司 | Manually turned screw assembly and connecting structure applying same |
| CN203384187U (en) * | 2013-01-08 | 2014-01-08 | 南京圣明机电科技有限公司 | Anti-loosening fastening nut |
| CN203463465U (en) * | 2013-07-29 | 2014-03-05 | 北京航天计量测试技术研究所 | Thread pressing mechanism for achieving anti-loosening function under assembly interference conditions |
-
2014
- 2014-04-04 CN CN201410134509.5A patent/CN104976212A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6053653A (en) * | 1997-05-09 | 2000-04-25 | Sannohashi Corporation | Fastening method, fastening system and bolt used therefor |
| CN201326630Y (en) * | 2008-12-31 | 2009-10-14 | 中国航空工业第一集团公司第六三一研究所 | Unloosening bolt |
| CN102400991A (en) * | 2011-04-29 | 2012-04-04 | 兴威电脑（昆山）有限公司 | Manually turned screw assembly and connecting structure applying same |
| CN203384187U (en) * | 2013-01-08 | 2014-01-08 | 南京圣明机电科技有限公司 | Anti-loosening fastening nut |
| CN203463465U (en) * | 2013-07-29 | 2014-03-05 | 北京航天计量测试技术研究所 | Thread pressing mechanism for achieving anti-loosening function under assembly interference conditions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332989A (en) * | 2015-11-13 | 2016-02-17 | 珠海格力电器股份有限公司 | Bolt assembly and electric appliance structure |
| CN108468699A (en) * | 2018-05-09 | 2018-08-31 | 河南森源电气股份有限公司 | A kind of sealing screw component and its attachment screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |