CN108644216A - It is a kind of not fall off screw assembly with locking functions - Google Patents
It is a kind of not fall off screw assembly with locking functions Download PDFInfo
- Publication number
- CN108644216A CN108644216A CN201810401303.2A CN201810401303A CN108644216A CN 108644216 A CN108644216 A CN 108644216A CN 201810401303 A CN201810401303 A CN 201810401303A CN 108644216 A CN108644216 A CN 108644216A
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- China
- Prior art keywords
- screw
- fixing sleeve
- locking
- fall
- locking component
- 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
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 16
- 230000008901 benefit Effects 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
-
- 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
Abstract
Screw assembly not being fallen off with locking functions the present invention relates to a kind of, belongs to and does not fall off screw technique field, solve locking component in the prior art and screw decentraction, the problem of screw check effect difference.It includes screw, locking component and fixing sleeve that this, which has the screw assembly that do not fall off of locking functions,；Locking component is arranged between screw and fixing sleeve；Locking component has elasticity, which is provided with the circular hole passed through for screw；Fixing sleeve be with female set shape structural member, after screw-driving, the lower surface close contact of the upper surface of fixing sleeve and locking component；The head of screw lower end of screw is equipped with ring-shaped step, and the diameter of ring-shaped step is more smaller than the internal diameter of locking component, keeps concentric with head of screw after locking compressing parts.Connection provided by the invention that do not fall off screw assembly and can be used for cabinet panel and cabinet or rack with locking functions.
Description
Technical field
Screw assembly is not fallen off the present invention relates to one kind more particularly to a kind of not falling off screw group with locking functions
Part.
Background technology
The function that screw is not deviate from after the back-out of fixed frame screw thread from fixing sleeve can be realized by not falling off screw assembly.
In the prior art, it does not fall off screw assembly and generally comprises screw, fixing sleeve and spring, fixing sleeve is riveted on machine box surface
On plate, screw and spring are mounted on fixing sleeve, and the function of not falling off is realized by the structure of screw and fixing sleeve, i.e., screw from
Screw thread on cabinet loosens rear screw and is still maintained on fixing sleeve, the problem of loss after screw being effectively prevent to loosen.Mesh
It is preceding use do not fall off screw assembly when in use substantially without locking measures, be easy to loosen in the case of vibrations.
Partly taking increase wave washer locking measures not fall off screw assembly, due to wave washer internal diameter ratio not
Releasing screw diameter is much larger both to be caused after installing to be difficult to accomplish with one heart, to cause the uneven stress of wave washer, influence locking
Effect, and wave washer and do not fall off screw decentraction also and can influence the aesthetics of overall appearance, it leverages its and uses effect
Fruit.
Invention content
It is solved in view of above-mentioned analysis the present invention is intended to provide a kind of not falling off screw assembly with locking functions
Locking component and screw decentraction in the prior art, the problem of screw check effect difference.
The purpose of the present invention is mainly achieved through the following technical solutions：
It is a kind of not fall off screw assembly, including screw, locking component and fixing sleeve with locking functions；Locking component is set
It sets between screw and fixing sleeve；Locking component has elasticity, which is provided with the circular hole passed through for screw；Fixing sleeve be with
The set shape structural member of internal thread, after screw-driving, the upper surface of fixing sleeve and the lower surface of locking component are in close contact；Screw
Head of screw lower end be equipped with ring-shaped step, the diameter of ring-shaped step is more smaller than the internal diameter of locking component, after locking compressing parts with spiral shell
Ailhead keeps concentric.
On the basis of said program, the present invention has also done following improvement：
Further, there is threaded portion, middle part to have smooth bar part for screw lower part；Smooth bar part diameter is outer than threaded portion
Diameter is small；Ring-shaped step is arranged in the root that head of screw is connect with smooth bar part, and the diameter of ring-shaped step is than screw body part
Diameter is big, after screw-driving, ring-shaped step not with fixing sleeve thread interference.
Further, fixing sleeve is internally provided with counterbore, and the bottom surface of counterbore is provided with the threaded hole of perforation, after screw-driving,
Ring-shaped step is embedded in counterbore, and the threaded portion of screw screws in and by being threadedly coupled with panel after threaded hole.
Further, the diameter of ring-shaped step is 0.5 millimeter smaller than the internal diameter of locking component.
Further, fixing sleeve bottom has flange, is riveted on panel by flange.
Further, locking component is that wave washer, elastic washer or plain cushion add elastic washer.
Further, wave washer is regular, the thin rounded flakes of undulate.
Further, screw assembly further includes spring, and spring is placed on screw, is located at locking component lower part；When screw is twisted
When tight, spring is compressed in the counterbore of fixing sleeve.
Compared with prior art, the screw assembly that do not fall off with locking functions of the invention has the beneficial effect that：
A) provided by the invention not fall off screw assembly with locking functions, it can realize locking component and not fall off spiral shell
Nail ailhead is concentric, and anti-loosing effect is good.
B) provided by the invention not fall off screw assembly with locking functions, screw from the screw thread on cabinet screw out after not
Deviate from from fixing sleeve, screw loosens rear not easy to lose.
C) screw assembly that do not fall off with locking functions provided by the invention, it is overall beautiful, greatly improve its use
Effect.
The present invention also provides a kind of application methods for not falling off screw assembly with locking functions, when needs will not take off
When falling screw assembly on panel, first fixing sleeve is connected on panel, later successively installs locking component and spring
To not falling off on screw, then screw will not fallen off and be screwed on the screw thread of fixing sleeve together with locking component and spring, completes not falling off
Installation of the screw assembly on panel, when work, will not fall off screw-driving, and spring is compressed into the counterbore of fixing sleeve, locking
Component, which is crushed on, not to be fallen off between screw ailhead and fixing sleeve upper surface, locking component with not fall off screw ailhead concentric.
Further, the locking component is that wave washer, elastic washer or plain cushion add elastic washer.
Compared with prior art, the application method for not falling off screw assembly with locking functions of the invention is with as follows
Advantageous effect：
The cabinet panel and cabinet or rack installed using this method, firm and durable, in the case of vibrations not
It is easy to loosen.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Invention other feature and advantage will illustrate in the following description, also, it is partial as will become apparent from the description,
Or understand through the implementation of the invention.The purpose of the present invention and other advantages can by write specification, claim
Specifically noted structure is realized and is obtained in book and attached drawing.
Description of the drawings
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in entire attached drawing
In, identical reference mark indicates identical component.
Fig. 1 is the structural schematic diagram for not falling off screw assembly with locking functions of the embodiment of the present invention one；
Fig. 2 is sectional view when tightening for not falling off screw assembly with locking functions of the embodiment of the present invention one.
Reference numeral：
1- does not fall off screw；The locking components of 2-；3- springs；4- fixing sleeves.
Specific implementation mode
Specifically describing the preferred embodiment of the present invention below in conjunction with the accompanying drawings, wherein attached drawing constitutes the application part, and
It is used to illustrate the principle of the present invention together with embodiments of the present invention, be not intended to limit the scope of the present invention.
Embodiment one
Present embodiments provide it is a kind of not falling off screw assembly with locking functions, as shown in Figure 1 to Figure 2, including
Screw 1, locking component 2 and fixing sleeve 4；Locking component 2 is arranged between screw 1 and fixing sleeve 4；Locking component 2 has elasticity,
It which is provided with the circular hole passed through for screw 1；Fixing sleeve 4 be with female set shape structural member, after screw-driving, fixing sleeve
4 upper surface and the lower surface of locking component 2 are in close contact；It (is not marked in figure equipped with ring-shaped step the head of screw lower end of screw 1
Go out), the diameter of ring-shaped step is more smaller than the internal diameter of locking component 2, and locking component 2 is concentric with head of screw holding after compressing.
When implementation, first fixing sleeve 4 is connected on panel, flexible locking component 2 is installed to does not fall off later
On screw 1, then screw 1 will not fallen off and be screwed to on female fixing sleeve 4 together with locking component 2, to complete not fall off
Installation of the screw assembly on panel.Screw 1 will not be fallen off when work to tighten, and screw is not fallen off to which locking component 2 is crushed on
Between 4 upper surface of ailhead and fixing sleeve.Because the head of screw lower end of screw is equipped with ring-shaped step, and the diameter ratio of ring-shaped step
The internal diameter of locking component is smaller, so locking component can be realized and not fall off screw ailhead concentric.
Compared with prior art, provided in this embodiment not fall off screw assembly with locking functions, it can realize anti-
Loose component with not fall off screw ailhead concentric, anti-loosing effect is good.This does not fall off screw assembly, and locking component, which is equipped with, is used for screw
The circular hole passed through, and it is equipped with ring-shaped step in the head of screw lower end of screw, while the diameter of ring-shaped step is than locking component
Internal diameter is smaller so that after screw-driving, locking component can pass through ring-shaped step, be crushed on the upper surface of fixing sleeve with not
Between releasing screw ailhead, solves locking component and do not fall off screw ailhead decentraction, the problem of anti-loosing effect difference.
After ensureing that the threaded portion for not falling off screw screws in the internal thread of fixing sleeve, screw can have centainly in fixing sleeve
Activity space, be equipped with smooth bar part at the middle part of screw, and the diameter of smooth bar part is smaller than the outer diameter of threaded portion.Meanwhile
In order to further improve the anti-loosing effect of screw, ring-shaped step is arranged in the root that head of screw is connect with smooth bar part, and
And the diameter of ring-shaped step is bigger than the diameter of screw body part, after screw-driving, ring-shaped step not with fixing sleeve thread interference.
Do not fall off screw assembly in order to further increase does not fall off function, and counterbore is internally provided in fixing sleeve, counterbore
Bottom surface is provided with the threaded hole of perforation, and after screw-driving, ring-shaped step is embedded in counterbore, and the threaded portion of screw screws in and passes through spiral shell
It is threadedly coupled with panel after pit.When needing that screw assembly release will not be fallen off, threaded portion and the installation of screw will not fallen off
Threaded hole is completely disengaged, but the screw thread for the threaded portion and fixing sleeve counterbore bottom surface for not falling off screw still has interaction, Ke Yiyou
Effect is lost after avoiding screw from loosening.
During screw-driving, in order to enable locking component to pass through ring-shaped step, and keep preferable with head of screw
It is concentric, the diameter of ring-shaped step is 0.5 millimeter smaller than the internal diameter of locking component.Because if the diameter of ring-shaped step is than locking
The internal diameter of component is small too many, can cause locking component that cannot keep concentric well with head of screw；If the diameter of ring-shaped step
Smaller than the internal diameter of locking component very little, during leading to screw-driving, locking component cannot pass through ring-shaped step.
Other parts in screw assembly are not fallen off in view of fixing sleeve needs play the role of fixed support, the application fixes
Covering bottom has flange, is riveted on panel by flange.The connection type of riveting is not only secured, but also easy, easy to operate, from
And the labor intensity of worker can be mitigated.
It should be noted that the locking component in the application, which can be wave washer, elastic washer or plain cushion, adds cushion
Circle.Wave washer is regular, the thin rounded flakes of undulate, not only beauty but also the anti-loosing effect having had；Elastic washer because
There is no the waveform as wave washer, so anti-loosing effect does not have wave washer good；And plain cushion adds elastic washer locking
Effect is not only good without wave washer, also results in the height increase for not falling off screw assembly entirety, limits its use.
It is worth noting that, the screw assembly of the application further includes spring, spring is placed on screw, is located under locking component
Portion；When screw-driving, spring is compressed in the counterbore of fixing sleeve.During use, when needs will not fall off screw assembly
It when release, needs not falling off screw assembly by all simultaneously while loosening, and does not fall off screw external screw thread and installation threaded hole is complete
Complete to disengage, the effect of spring is exactly when not falling off screw thread portion and being screwed out out of installation threaded hole, and the elastic force by spring will
Screw ejection is not fallen off, avoids not falling off screw external screw thread and installation threaded hole is not completely disengaged.
Embodiment two
A kind of application method for not falling off screw assembly with locking functions is present embodiments provided, when needs will not take off
When falling screw assembly on panel, first fixing sleeve is connected on panel, later successively installs locking component and spring
To not falling off on screw, then screw will not fallen off and be screwed on the screw thread of fixing sleeve together with locking component and spring, completes not falling off
Installation of the screw assembly on panel.Screw-driving will not be fallen off when work, spring is compressed into the counterbore of fixing sleeve, locking
Component, which is crushed on, not to be fallen off between screw ailhead and fixing sleeve upper surface, locking component with not fall off screw ailhead concentric.
The cabinet panel and cabinet or rack installed using this method, firm and durable, in the case of vibrations not
It is easy to loosen.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of not falling off screw assembly with locking functions, which is characterized in that including screw, locking component and fixing sleeve；
The locking component is arranged between screw and fixing sleeve；
The locking component has elasticity, which is provided with the circular hole passed through for the screw；
The fixing sleeve is with female set shape structural member, and after screw-driving, the upper surface of the fixing sleeve is prevented with described
The lower surface of loose component is in close contact；
The head of screw lower end of the screw is equipped with ring-shaped step, and the diameter of the ring-shaped step is more smaller than the internal diameter of locking component,
Keep concentric with head of screw after locking compressing parts.
2. according to claim 1 do not fall off screw assembly with locking functions, which is characterized in that the screw lower part
With threaded portion, middle part has smooth bar part；The smooth bar part diameter is smaller than the outer diameter of threaded portion；The ring-shaped step setting
Diameter in the root that head of screw is connect with smooth bar part, the ring-shaped step is bigger than the diameter of screw body part, and screw is twisted
It is next, the ring-shaped step not with the fixing sleeve thread interference.
3. according to claim 2 do not fall off screw assembly with locking functions, which is characterized in that in the fixing sleeve
Portion is equipped with counterbore, and the bottom surface of the counterbore is provided with the threaded hole of perforation, and after screw-driving, the ring-shaped step is embedded in counterbore
Interior, the threaded portion of the screw screws in and by being threadedly coupled with panel after threaded hole.
4. according to claim 1 do not fall off screw assembly with locking functions, which is characterized in that the ring-shaped step
Diameter it is 0.5 millimeter smaller than the internal diameter of the locking component.
5. according to claim 3 do not fall off screw assembly with locking functions, which is characterized in that the fixing sleeve bottom
Portion has flange, on the panel by flange riveting.
6. according to claim 1 do not fall off screw assembly with locking functions, which is characterized in that the locking component
Add elastic washer for wave washer, elastic washer or plain cushion.
7. according to claim 6 do not fall off screw assembly with locking functions, which is characterized in that the wave washer
To be regular, the thin rounded flakes of undulate.
8. according to any one of claims 1 to 7 do not fall off screw assembly with locking functions, which is characterized in that institute
It further includes spring to state screw assembly, and the spring is placed on screw, is located at the locking component lower part；When screw-driving, bullet
Spring is compressed in the counterbore of fixing sleeve.
9. the application method for not falling off screw assembly with locking functions described in claim 1-8, which is characterized in that when need
When will not fall off screw assembly on panel, first fixing sleeve is connected on panel, later by locking component and spring
It is successively installed to and does not fall off on screw, then screw will not fallen off and be screwed on the screw thread of fixing sleeve together with locking component and spring, it is complete
At not falling off installation of the screw assembly on panel, when work, will not fall off screw-driving, and spring is compressed into the heavy of fixing sleeve
In hole, locking component, which is crushed on, not to be fallen off between screw ailhead and fixing sleeve upper surface, locking component and does not fall off screw ailhead
With one heart.
10. the application method according to claim 9 that do not fall off screw assembly with locking functions, which is characterized in that
The locking component is that wave washer, elastic washer or plain cushion add elastic washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401303.2A CN108644216A (en) | 2018-04-28 | 2018-04-28 | It is a kind of not fall off screw assembly with locking functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401303.2A CN108644216A (en) | 2018-04-28 | 2018-04-28 | It is a kind of not fall off screw assembly with locking functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644216A true CN108644216A (en) | 2018-10-12 |
Family
ID=63748638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401303.2A Pending CN108644216A (en) | 2018-04-28 | 2018-04-28 | It is a kind of not fall off screw assembly with locking functions |
Country Status (1)
| Country | Link |
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| CN (1) | CN108644216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092839A (en) * | 2021-03-04 | 2021-07-09 | 张军 | Fixing device of electric energy meter |
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| US4387497A (en) * | 1980-11-07 | 1983-06-14 | Bulent Gulistan | Captive screw assembly method and product |
| CN201170250Y (en) * | 2007-12-20 | 2008-12-24 | 贵州航天乌江科技有限责任公司 | Cover board anti-drop attachment screw |
| CN101625004A (en) * | 2008-07-11 | 2010-01-13 | 德迈科技有限公司 | Fixing device |
| TW201105872A (en) * | 2009-08-05 | 2011-02-16 | Kuo-Chung Wang | Fastening device |
| CN201982438U (en) * | 2011-01-21 | 2011-09-21 | 衡阳泰豪通信车辆有限公司 | Unloosening-bolt installing and fixing structure |
| CN203035700U (en) * | 2013-01-04 | 2013-07-03 | 南京全信传输科技股份有限公司 | Captive screw capable of rebounding |
| CN203322016U (en) * | 2013-05-16 | 2013-12-04 | 贵州航天林泉电机有限公司 | Anti-looseness self-locking screw connecting structure |
| US20140068921A1 (en) * | 2012-09-09 | 2014-03-13 | Hanwit Precision Industries Ltd. | Floating fastener mounting structure and method |
| CN204739063U (en) * | 2015-07-19 | 2015-11-04 | 深象紧固系统（深圳）有限公司 | Automatic change and rivet loose screw that does not take off of dress |
| CN206770377U (en) * | 2017-04-21 | 2017-12-19 | 北京航天光华电子技术有限公司 | One kind does not fall off screw |
-
2018
- 2018-04-28 CN CN201810401303.2A patent/CN108644216A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2939379A1 (en) * | 1979-09-28 | 1981-05-07 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | SCREW CONNECTION BETWEEN TWO CONSTRUCTION PARTS FOR ELECTRICAL APPARATUS |
| US4387497A (en) * | 1980-11-07 | 1983-06-14 | Bulent Gulistan | Captive screw assembly method and product |
| CN201170250Y (en) * | 2007-12-20 | 2008-12-24 | 贵州航天乌江科技有限责任公司 | Cover board anti-drop attachment screw |
| CN101625004A (en) * | 2008-07-11 | 2010-01-13 | 德迈科技有限公司 | Fixing device |
| TW201105872A (en) * | 2009-08-05 | 2011-02-16 | Kuo-Chung Wang | Fastening device |
| CN201982438U (en) * | 2011-01-21 | 2011-09-21 | 衡阳泰豪通信车辆有限公司 | Unloosening-bolt installing and fixing structure |
| US20140068921A1 (en) * | 2012-09-09 | 2014-03-13 | Hanwit Precision Industries Ltd. | Floating fastener mounting structure and method |
| CN203035700U (en) * | 2013-01-04 | 2013-07-03 | 南京全信传输科技股份有限公司 | Captive screw capable of rebounding |
| CN203322016U (en) * | 2013-05-16 | 2013-12-04 | 贵州航天林泉电机有限公司 | Anti-looseness self-locking screw connecting structure |
| CN204739063U (en) * | 2015-07-19 | 2015-11-04 | 深象紧固系统（深圳）有限公司 | Automatic change and rivet loose screw that does not take off of dress |
| CN206770377U (en) * | 2017-04-21 | 2017-12-19 | 北京航天光华电子技术有限公司 | One kind does not fall off screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092839A (en) * | 2021-03-04 | 2021-07-09 | 张军 | Fixing device of electric energy meter |
| CN113092839B (en) * | 2021-03-04 | 2023-10-17 | 保定市兆微软件科技有限公司 | Fixing device of electric energy meter |
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Application publication date: 20181012 |