CN108374827A - Anti-loose bolt - Google Patents
Anti-loose bolt Download PDFInfo
- Publication number
- CN108374827A CN108374827A CN201810433220.1A CN201810433220A CN108374827A CN 108374827 A CN108374827 A CN 108374827A CN 201810433220 A CN201810433220 A CN 201810433220A CN 108374827 A CN108374827 A CN 108374827A
- Authority
- CN
- China
- Prior art keywords
- screw
- bolt
- groove
- screw rod
- loose
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 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
- 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
- F16B35/041—Specially-shaped shafts
-
- 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/028—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of an auxiliary bolt or threaded element whose action provokes the deformation of the main bolt or nut and thereby its blocking
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of Anti-loose bolts, belong to mechanical fastening technique field.It solves the locking defect with anti-drop function difference existing for conventional bolt in the prior art.Its agent structure includes bolt and screw, and the bolt includes bolt head and screw rod, and the screw rod end face is internally provided with groove and expansion grooving, internal thread is equipped in the groove, and screw is screwed in groove by internal thread and is used cooperatively with screw rod.Present invention is mainly used for steel tower, freeway guardrail, trains etc..
Description
Technical field：
The invention belongs to mechanical fastening technique fields, specifically, more particularly to a kind of Anti-loose bolt.
Background technology：
Bolt and nut component has extensive purposes daily, is mainly used for the installation and fastening of various components, existing
Bolt is installed by being constituted with externally threaded bolt and dismounting is easy but locking, anti-drop function is poor.
Invention content：
In order to solve the locking disadvantage with anti-drop function difference existing for conventional bolt in the prior art, the present invention provides one
The Anti-loose bolt that kind is different from the prior art, manufacturing process is simple, cheap and simple to operate, and anti-high intensity is tired
Labor shakes, being capable of anticreep, locking and shockproof.
To achieve the goals above, realization that the present invention adopts the following technical solutions：
A kind of Anti-loose bolt, including bolt and screw, the bolt include bolt head and screw rod, in the screw rod end face
Portion is equipped with groove and expansion grooving, and internal thread is equipped in the groove, and screw is screwed in by internal thread in groove to be coordinated with screw rod
It uses.
Further, the screw is taper screw.
Further, the external screw thread of the screw and the angle of axis direction are δ, and the value range of δ is to be less than more than 0 °
Equal to 4 °.
Further, the depth of the expansion grooving is H, the value range of H be more than or equal to the four of depth of groove/
One, it is less than or equal to 3/4ths of depth of groove.
Further, the expansion grooving is evenly distributed with two to seven.
Further, anti-loose flange is equipped at the bolt head, the anti-loose flange is structure as a whole with bolt head.
Compared with prior art, the beneficial effects of the invention are as follows：
1, manufacturing process is simple, cheap and simple to operate；
2, anti-high intensity fatigue vibrations, being capable of anticreep, locking and shockproof；
3, material can voluntarily be selected according to purposes, and can be reused, and avoid disposably wasting；
4, it can also avoid loosening at a lower temperature.
Description of the drawings：
Fig. 1 is the front view of bolt in the present invention；
Fig. 2 is the vertical view of bolt in the present invention；
Fig. 3 is the front view of screw in the present invention；
Fig. 4 is the structural schematic diagram that the present invention installs and uses.
In figure：1, bolt head；2, anti-loose flange；3, screw rod；4, groove；5, internal thread；6, grooving is expanded；7, screw；
8, bolt；9, nut.
Specific implementation mode：
Below by specific embodiment and in conjunction with attached drawing, the invention will be further described.
Embodiment 1：
As shown in Figs. 1-3, a kind of Anti-loose bolt, including bolt 8 and screw 7, the bolt 8 include bolt head 1 and spiral shell
Bar 3,3 end face of the screw rod are internally provided with groove 4 and expansion grooving 6, and expansion grooving 6 is from the side of groove 4 initially tangentially screw rod 3
External screw thread face on, internal thread 5 is equipped in the groove 4, screw 7, which screws in coordinate with screw rod 3 in groove 4 by internal thread 5, to be made
With.
If δ is 0 °, the diameter of screw 7 (should such as can use the recessed of diameter=1.1 times of screw 7 slightly larger than the diameter of groove 4
The diameter of slot 4), in this way when screw 7 is screwed into groove 4, in the case where the diameter of screw 7 is more than the diameter of groove 4, expansion
It can be pushed outwardly and expand at grooving 6, the nut 9 on bolt 8 can be prevented to exit screw rod 3, achieved the purpose that anti-loose.
Embodiment 2：
A kind of Anti-loose bolt, the screw 7 are taper screw, since the screw thread outside screw 7 is equipped with certain taper,
And the size of lower end minimum is consistent with the diameter dimension of internal thread 5 in groove 4, therefore when screw 7 is screwed into groove 4,
The end of screw rod 3 has a little expansion under the action of expansion grooving 6；The external screw thread of the screw 7 and the angle of axis direction are
The value range of δ, δ are to be less than or equal to 4 °, the value of δ is preferably 1.15 ° more than 0 °；If the value of δ is 0 °, to loosening not
It works；If the value of δ is excessive, it is not easy to screw in the groove 4 of screw rod 3, can also causes the fracture of screw rod 3；The expansion is cut
The depth of slot 6 is H, and the value range of H is a quarter more than or equal to 4 depth of groove, is less than or equal to four points of 4 depth of groove
Three；Expansion grooving 6 is evenly distributed with two to seven；Anti-loose flange 2, the anti-loose flange 2 and spiral shell are equipped at bolt head 1
Bolt head 1 is structure as a whole.Other parts are same as Example 1.
Anti-loose flange 2 is set at bolt head 1, can prevent that present invention loosening can be made when vibrations, loosen, further reach
Tight effect.
Expand grooving 6 quantity cannot too much can not be very little, quantity is very little, expansion is not achieved and prevent nut 9 loosen
Effect, quantity is easily destroyed the intensity of screw rod 3 too much.
The operation principle that the present invention installs and uses is：
As shown in figure 4, such as embodiment 1, bolt 8 is sleeved on installed object, then screws in nut 9 on screw rod 3, by
It is more than the diameter of groove 4 in the diameter of screw 7, when screw 7 is screwed into groove 4, under the action of expanding grooving 6, screw rod 3
End can be pushed outwardly and expand, and when nut 9 has just been filled up in the place after expanding and screw rod 3 is tightened between the seam that retains
Gap, therefore the nut 9 on bolt 8 is prevented to exit screw rod 3, achieve the purpose that anti-loose.
As screw 7 is screwed into groove 4, spiral shell under the action of expanding grooving 6 by embodiment 2 if screw 7 is taper screw
Some expansions are understood in the end of bar 3, and the rubbing surface with the internal thread of nut 9 is increased after the external screw thread expansion of the end of screw rod 3, swollen
Place after swollen just filled up nut 9 and when screw rod 3 is tightened between the gap that retains, therefore the nut 9 on screw rod 3 is
Make, in the case where the vibrations of high intensity fatigue occur, to loosen.
Plain bolt nut assembly will appear the phenomenon that expanding with heat and contract with cold at a lower temperature, lead to nut loosening, this hair
Expansion in bright due to screw 7 to 3 end of screw rod, even if in high cold zone, nut 9 will not exit screw rod 3,
The phenomenon that will not getting loose.
Claims (6)
1. a kind of Anti-loose bolt, it is characterised in that：Including bolt (8) and screw (7), the bolt (8) includes bolt head (1)
With screw rod (3), screw rod (3) end face is internally provided with groove (4) and expansion grooving (6), internal thread is equipped in the groove (4)
(5), screw (7) is screwed in groove (4) by internal thread (5) and is used cooperatively with screw rod (3).
2. Anti-loose bolt according to claim 1, it is characterised in that：The screw (7) is taper screw.
3. Anti-loose bolt according to claim 2, it is characterised in that：The external screw thread and axis direction of the screw (7)
Angle be δ, the value range of δ is to be less than or equal to 4 ° more than 0 °.
4. Anti-loose bolt according to claim 3, it is characterised in that：The depth of the expansion grooving (6) is H, and H's takes
Value is ranging from more than or equal to a quarter of groove (4) depth, is less than or equal to 3/4ths of groove (4) depth.
5. Anti-loose bolt according to claim 4, it is characterised in that：The expansion grooving (6) be evenly distributed with two to
Seven.
6. Anti-loose bolt according to claim 5, it is characterised in that：Anti-loose flange is equipped at the bolt head (1)
(2), the anti-loose flange (2) is structure as a whole with bolt head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433220.1A CN108374827A (en) | 2018-05-08 | 2018-05-08 | Anti-loose bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433220.1A CN108374827A (en) | 2018-05-08 | 2018-05-08 | Anti-loose bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108374827A true CN108374827A (en) | 2018-08-07 |
Family
ID=63033107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810433220.1A Withdrawn CN108374827A (en) | 2018-05-08 | 2018-05-08 | Anti-loose bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108374827A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307232A (en) * | 2019-07-03 | 2019-10-08 | 王仲文 | A kind of screw for preventing from loosening |
-
2018
- 2018-05-08 CN CN201810433220.1A patent/CN108374827A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307232A (en) * | 2019-07-03 | 2019-10-08 | 王仲文 | A kind of screw for preventing from loosening |
| CN110307232B (en) * | 2019-07-03 | 2023-06-16 | 浙江启冠精工机械股份有限公司 | Screw capable of preventing loosening |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108223545A (en) | Locking Anti-off bolt nut assembly | |
| CN201723555U (en) | Lock bolt | |
| CN108386440A (en) | Locking Anti-off bolt nut assembly | |
| CN109083910A (en) | A kind of antirust tapping screw | |
| CN208057662U (en) | Locking Anti-off bolt nut assembly | |
| CN108374827A (en) | Anti-loose bolt | |
| CN206111805U (en) | Locking type theftproof bolt | |
| CN207569023U (en) | A kind of locking self-locking fastener | |
| CN207848176U (en) | Locking Anti-off bolt nut assembly | |
| CN104454914A (en) | Plough type ratchet pad lock catch anti-loose device for railway touching net | |
| CN210290446U (en) | Combined novel anti-loosening nut | |
| CN108006051A (en) | Anti-loosening threaded pair and checknut part | |
| CN108374828A (en) | Anti-loosening nut | |
| CN204344652U (en) | A kind of railway contact line plough sour jujube pad snap close locking device | |
| CN204267473U (en) | A kind of cement bolt | |
| CN203023225U (en) | Fastener and combined nut device thereof | |
| CN209294209U (en) | A kind of automobile lock screw | |
| CN109322899A (en) | A kind of anti-skidding antivibration bolt kit | |
| CN207161485U (en) | A kind of stud of convenient use | |
| CN210660971U (en) | Anti-loosening locking bolt | |
| CN203585026U (en) | Loosening-preventive bolt component | |
| CN209083767U (en) | A kind of antirust tapping screw | |
| CN207161498U (en) | A kind of wear-resisting stud of baking vanish conveniently screwed | |
| CN206830615U (en) | A kind of stop nut based on circular cone EDS maps screw thread | |
| CN206770365U (en) | A kind of deflector roll bearing round nut with locking mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180807 |