CN107882825A - A kind of fastening structure - Google Patents
A kind of fastening structure Download PDFInfo
- Publication number
- CN107882825A CN107882825A CN201711025615.XA CN201711025615A CN107882825A CN 107882825 A CN107882825 A CN 107882825A CN 201711025615 A CN201711025615 A CN 201711025615A CN 107882825 A CN107882825 A CN 107882825A
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- China
- Prior art keywords
- bolt
- hole
- screwed hole
- fastening structure
- screw
- 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 abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 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
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a kind of fastening structure, belong to fastener areas, including bolt, screw rod and the nut matched with bolt, bolt includes bolt head and the body of bolt, and screw rod includes screw head and screw body, the front end of the body of bolt is provided with tight lock part, the end of tight lock part is provided with locking hole, and the front end of screw body is provided with fixed part, and fixed part is provided with the fixing hole for tight lock part insertion, locking hole is located at the front of fixing hole, and is provided with check lock lever in locking hole；The nut is provided with screwed hole and is communicated in the bayonet slot of screwed hole, and the width of bayonet slot is equal to the central diameter of screwed hole.Fastening structure provided by the invention, the locking to bolt is realized by the effect of check lock lever, bolt can not be unscrewed from outside, realize anti-theft feature.The structure of the present invention is simple, is easily installed, and be well positioned to meet antitheft requirement.Open up the bayonet slot connected with screwed hole on nut, during installation, directly nut is stuck on bolt and then tightened, is easy to shorten built-up time.
Description
Technical field
The present invention relates to technical field of fastening, more particularly to a kind of fastening structure.
Background technology
The parts such as the steel tower established at present, metal frame, Sewage well cover, its exposed part are easy to occur stolen
Situation, in order to prevent these parts to be stolen, the existing fado that does is to add a part again in the outside of these exposed parts,
Then install, dismantle these exposed parts, although certain anti-theft feature can be played, be added significantly to exposed part into
Originally, installation difficulty and maintenance difficulty.
The content of the invention
In order to solve shortcoming and defect present in above-mentioned prior art, it is easily installed and has the invention provides one kind
The fastening structure of anti-theft feature.
In order to realize above-mentioned technical purpose, fastening structure provided by the invention, including bolt, screw rod and matched with bolt
Nut, bolt include bolt head and the body of bolt, and screw rod includes screw head and screw body, and the front end of the body of bolt is provided with lock
Tight portion, the end of tight lock part are provided with locking hole, and the front end of screw body is provided with fixed part, and fixed part is provided with for tight lock part insertion
Fixing hole, locking hole is located at the front of fixing hole, and is provided with check lock lever in locking hole；The nut is provided with screwed hole and connected
In the bayonet slot of screwed hole, the width of bayonet slot is equal to the central diameter of screwed hole.
Preferably, the side inwall of the bayonet slot is provided with clamping projection, the raised end face of clamping and phase in bayonet slot
It is more than the path of screwed hole the spacing opposite side inwall and less than the central diameter of screwed hole.
Preferably, the opposite sides inwall of the bayonet slot is provided with the clamping projection being correspondingly arranged, two clamping projections
End face between spacing be more than screwed hole path and less than screwed hole central diameter.
Preferably, the length of the check lock lever is W1, and the length of fixing hole is W2, W1 ＞ W2.
Preferably, the tight lock part coordinates with fixing hole for gap, and the unilateral gap between tight lock part and fixing hole is Δ
W, 1mm≤Δ W≤3mm.
Preferably, the check lock lever is cylindrical, and the inwall of locking hole is provided with internal thread, on the axial outer wall of check lock lever
Provided with the external screw thread matched with internal thread, check lock lever is coordinated in locking hole by screw thread.
Preferably, the tight lock part and fixed part are in flat, tight lock part by the front end of the body of bolt through cold-heading aftershaping,
Fixed part is by the front end of screw body through cold-heading aftershaping.
After adopting the above technical scheme, fastening structure provided by the invention has the following advantages that：
1st, fastening structure provided by the invention, the mounting structure of bolt is improved, is additionally arranged screw rod and check lock lever.
When fixed, fixation is linked together by the cooperation of screw bolt and nut, while the tight lock part on bolt is inserted screw rod
On fixing hole in, then check lock lever is fitted into locking hole, locking to bolt is realized by the effect of check lock lever, bolt is not
It can be unscrewed from outside, realize anti-theft feature.The structure of the present invention is simple, is easily installed, and be well positioned to meet antitheft requirement.
In addition, open up the bayonet slot connected with screwed hole on nut, during installation, directly nut is stuck on bolt and then twisted
Tightly, it is easy to shorten built-up time, improves packaging efficiency.
2nd, set clamping raised on the side inwall or both sides inwall of bayonet slot, clamping projection and bayonet slot opposite side inwall
Between spacing or two clamping projections between spacing be more than the path of screwed hole and less than the central diameter of screwed hole, bolt can pass through
Bayonet slot is caught in screwed hole, while nut can be avoided to depart from bolt, and it is solid to ensure that the installation between screw bolt and nut can meet
Provisioning request.
3rd, W1 ＞ W2, i.e. check lock lever length are more than the length of fixing hole, check lock lever is butted on fixed part, ensure logical
Anti-theft feature can be realized by crossing the cooperation of check lock lever and screw rod.
4th, tight lock part and fixing hole are coordinated using gap, are easy to reduce tight lock part on the premise of requirement is met and are consolidated
Determine the difficulty of processing in hole, ensure economic benefit.
5th, check lock lever is fitted into locking hole by screw thread, or, check lock lever can also directly use split pin, locking
Fit structure between bar and locking hole is simple, is easily installed, and can realize anti-theft feature well.
6th, tight lock part after cold-heading molding is in flat by the front end of the body of bolt, and fixed part is by the front end of screw body through cold-heading
It is in flat after shaping, the shaping of tight lock part and fixed part is simple, is easy to process, and tight lock part is integrated with the body of bolt, is fixed
Portion is integrated with screw body, and the intensity that bolt is overall and screw rod is overall can be effectively ensured, better meet using effect.
Brief description of the drawings
Fig. 1 is the overall schematic of the anti-theft type bolt arrangement of the embodiment of the present invention one；
Fig. 2 is the schematic diagram of bolt and check lock lever in the anti-theft type bolt arrangement of the embodiment of the present invention one；
Fig. 3 is the top view of screw rod in the anti-theft type bolt arrangement of the embodiment of the present invention one；
Fig. 4 is the stereogram of nut in the anti-theft type bolt arrangement of the embodiment of the present invention one；
Fig. 5 is the top view of nut in the anti-theft type bolt arrangement of the embodiment of the present invention one；
Fig. 6 is the top view of nut in the anti-theft type bolt arrangement of the embodiment of the present invention two.
In figure, 1- bolts, 11- bolt heads, the 12- bodies of bolt, 13- tight lock parts, 14- locking holes, 2- screw rods, 21- screw rods
Head, 22- screw bodies, 23- fixed parts, 24- fixing holes, 3- nuts, 31- screwed holes, 32- bayonet slots, 33- clampings are raised, 4-
Check lock lever, 5- is by fixed plate one, and 6- is by fixed plate two, 7- fixtures.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.It is to be appreciated that following " on ",
" under ", "left", "right", " longitudinal direction ", " transverse direction ", " interior ", " outer ", " vertical ", " level ", " top ", indicating position or the position such as " bottom "
The word for putting relation is based only upon orientation shown in the drawings or position relationship, only for the purposes of the description present invention and simplifies description, and
It is not instruction or implies that signified device/element there must be specific orientation or with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, the anti-theft type bolt arrangement that the embodiment of the present invention one provides, including bolt 1, screw rod 2
With the nut 3 matched with bolt.Bolt 1 includes bolt head 11 and the body of bolt 12, and bolt head is located at the rear end of the body of bolt.Spiral shell
Bar 2 includes screw head 21 and screw body 22, and screw head is located at the rear end of screw body.The front end of the body of bolt 12 is provided with tight lock part
13, the end of tight lock part is provided with locking hole 14.The front end of screw body 22 is provided with fixed part 23, and fixed part is provided with and supplies tight lock part 13
The fixing hole 24 of insertion, locking hole 14 are located at the front of fixing hole, check lock lever 4 are provided with locking hole.
In the present embodiment, tight lock part 13 after cold-heading molding is in flat by the front end of the body of bolt 12, and fixed part 23 is by spiral shell
The front end of the body of rod 22 is in flat after cold-heading molding.In order to reduce the difficulty of processing of tight lock part 13 and fixing hole 24, tight lock part
Coordinated with fixing hole using gap, the unilateral gap between tight lock part and fixing hole is Δ W, 1mm≤Δ W≤3mm.It is specific next
Say, Δ W could be arranged to 1mm, 1.5mm, 2mm, 2.5mm, 3mm, and the present embodiment is preferably arranged to 2mm.
The length of check lock lever 4 is W1, and the length of fixing hole 24 is W2, and W1 ＞ W2, the i.e. length of check lock lever are more than fixing hole
Length, check lock lever is butted on fixed part 23, ensure that by the cooperation of check lock lever and screw rod anti-theft feature can be realized.
In the present embodiment, bolt head 11 and screw head 21 are in hexagon.Check lock lever 4 is cylindrical, locking hole 14
Inwall be provided with internal thread, the axial outer wall of check lock lever is provided with the external screw thread matched with internal thread, and check lock lever passes through screw thread
Coordinate in locking hole.
In the present embodiment, in order to avoid installation of the tight lock part 13 to nut 3 causes to interfere, the length and width of tight lock part 13
The respectively less than diameter of the body of bolt 12.
As shown in Figure 4, Figure 5, screwed hole 31 is provided with the center of nut 3, the card for being communicated in screwed hole is additionally provided with nut
Mouth groove 32, the width W3 of bayonet slot are equal to the central diameter of screwed hole.
In the present embodiment, the side inwall of bayonet slot 32 is provided with clamping projection 33, the raised end face of clamping and bayonet slot
With respect to the spacing between opposite side inwall it is W4 on 32, W4 is more than the path of screwed hole and less than the central diameter of screwed hole.
Bayonet slot 32 is set on nut 3, during installation, directly nut is stuck on bolt 1 and then tightened, is easy to shortening group
ETL estimated time of loading, improve packaging efficiency.Set clamping raised on the inwall of bayonet slot, can improve coordinate between nut and bolt it is steady
It is qualitative, it is met installation requirement.
During installation, the hole passed through for bolt 1 is being opened up by fixed plate 1 and in fixed plate 26, opened on fixture 7
If the hole passed through for screw rod 2.Bolt 1 is passed through by fixed plate 1 and by the hole in fixed plate 6, and nut 3 is placed on bolt
On.Make screw rod 2 through the hole on fixture 7, and tight lock part 13 is inserted in fixing hole 24, nut 3 is tightened, then by check lock lever
4 are screwed into locking hole 14, check lock lever is stretched out the end of locking hole and are butted on fixed part 23.
After installation, the antitheft purpose of bolt 1 is realized by the cooperation of check lock lever 4 and screw rod 2, can only first be taken from inside
After lower check lock lever, bolt could be dismantled, can not be from outside direct demounting bolt.
It is understood that the check lock lever 4 in the present embodiment can also use split pin, now, locking hole 14 is through hole.
It is understood that hexagon ring can also be opened up in bolt head 11 and screw head 12 in the present embodiment.
Embodiment two
As shown in fig. 6, the embodiment of the present invention two and the difference part of above-described embodiment one are, relative the two of bayonet slot 32
Side inwall is provided with the clamping projection 33 that is correspondingly arranged, and the spacing between the raised end face of two clampings is W5, and W5 is more than screw thread
The path in hole and the central diameter for being less than screwed hole.
By two clamping projections, the stability connected between nut 3 and bolt 1 can be further improved, ensures nut
Connection with bolt meets installation requirement.
The other structures of the embodiment of the present invention two are identical with the structure described in above-described embodiment one, therefore herein no longer one by one
Repeat.
In addition to above preferred embodiment, the present invention also has other embodiments, and those skilled in the art can be according to this
Invention is variously modified and deformed, and without departing from the spirit of the present invention, all should belong in claims of the present invention and determine
The scope of justice.
Claims (7)
1. a kind of fastening structure, including bolt, screw rod and the nut matched with bolt, bolt includes bolt head and the body of bolt,
Screw rod includes screw head and screw body, it is characterised in that the front end of the body of bolt is provided with tight lock part, and the end of tight lock part is set
There is locking hole, the front end of screw body is provided with fixed part, and fixed part is provided with the fixing hole for tight lock part insertion, and locking hole is positioned at solid
Determine the front in hole, and check lock lever is provided with locking hole；The nut is provided with screwed hole and is communicated in the bayonet slot of screwed hole, card
The width of mouth groove is equal to the central diameter of screwed hole.
2. fastening structure according to claim 1, it is characterised in that it is convex that the side inwall of the bayonet slot is provided with clamping
Rise, be more than the path of screwed hole with respect to the spacing between opposite side inwall on the raised end face of clamping and bayonet slot and be less than screwed hole
Central diameter.
3. fastening structure according to claim 1, it is characterised in that the opposite sides inwall of the bayonet slot be provided with pair
The clamping that should be set is raised, and the spacing between the raised end face of two clampings is more than the path of screwed hole and less than in screwed hole
Footpath.
4. fastening structure according to claim 1, it is characterised in that the length of the check lock lever is W1, the length of fixing hole
Spend for W2, W1 ＞ W2.
5. fastening structure according to claim 1, it is characterised in that the tight lock part coordinates with fixing hole for gap, lock
Tightly the unilateral gap between portion and fixing hole is Δ W, 1mm≤Δ W≤3mm.
6. according to the fastening structure described in claim any one of 1-5, it is characterised in that the check lock lever is cylindrical, locking
The inwall in hole is provided with internal thread, and the axial outer wall of check lock lever is provided with the external screw thread matched with internal thread, and check lock lever passes through spiral shell
Line coordinates in locking hole.
7. according to the fastening structure described in claim any one of 1-5, it is characterised in that the tight lock part and fixed part are in flat
Flat-shaped, tight lock part is by the front end of the body of bolt through cold-heading aftershaping, and fixed part is by the front end of screw body through cold-heading aftershaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025615.XA CN107882825A (en) | 2017-10-27 | 2017-10-27 | A kind of fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025615.XA CN107882825A (en) | 2017-10-27 | 2017-10-27 | A kind of fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882825A true CN107882825A (en) | 2018-04-06 |
Family
ID=61782546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711025615.XA Pending CN107882825A (en) | 2017-10-27 | 2017-10-27 | A kind of fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126763A (en) * | 2021-03-25 | 2022-09-30 | 广东东箭汽车科技股份有限公司 | Gasket |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4297063A (en) * | 1979-06-11 | 1981-10-27 | Hi Shear Corporation | Telescoping self-retaining safety bolt assembly |
| US4995274A (en) * | 1989-11-20 | 1991-02-26 | Henry Kleeman | Locking pin and nut combination and method for visual inspection thereof |
| JPH0979241A (en) * | 1995-09-18 | 1997-03-25 | Nifco Inc | Lock nut |
| CN103452995A (en) * | 2013-09-18 | 2013-12-18 | 浙江连翔五金科技有限公司 | Nut and mounting method thereof |
| CN103807274A (en) * | 2014-03-13 | 2014-05-21 | 常熟市平冶机械有限公司 | Anti-theft bolt |
| DE202013102565U1 (en) * | 2013-06-14 | 2014-09-16 | Obo Bettermann Gmbh & Co. Kg | Fastener with detachable nut thread |
| CN204729449U (en) * | 2015-06-15 | 2015-10-28 | 国网山东高密市供电公司 | Double anti-theft bolt |
-
2017
- 2017-10-27 CN CN201711025615.XA patent/CN107882825A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4297063A (en) * | 1979-06-11 | 1981-10-27 | Hi Shear Corporation | Telescoping self-retaining safety bolt assembly |
| US4995274A (en) * | 1989-11-20 | 1991-02-26 | Henry Kleeman | Locking pin and nut combination and method for visual inspection thereof |
| JPH0979241A (en) * | 1995-09-18 | 1997-03-25 | Nifco Inc | Lock nut |
| DE202013102565U1 (en) * | 2013-06-14 | 2014-09-16 | Obo Bettermann Gmbh & Co. Kg | Fastener with detachable nut thread |
| CN103452995A (en) * | 2013-09-18 | 2013-12-18 | 浙江连翔五金科技有限公司 | Nut and mounting method thereof |
| CN103807274A (en) * | 2014-03-13 | 2014-05-21 | 常熟市平冶机械有限公司 | Anti-theft bolt |
| CN204729449U (en) * | 2015-06-15 | 2015-10-28 | 国网山东高密市供电公司 | Double anti-theft bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126763A (en) * | 2021-03-25 | 2022-09-30 | 广东东箭汽车科技股份有限公司 | Gasket |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
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| RJ01 | Rejection of invention patent application after publication |