CN109139659A - A kind of anti-loosening bolt part - Google Patents
A kind of anti-loosening bolt part Download PDFInfo
- Publication number
- CN109139659A CN109139659A CN201811122530.8A CN201811122530A CN109139659A CN 109139659 A CN109139659 A CN 109139659A CN 201811122530 A CN201811122530 A CN 201811122530A CN 109139659 A CN109139659 A CN 109139659A
- Authority
- CN
- China
- Prior art keywords
- slot
- cutting
- bore
- shank portion
- screw rod
- 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
- 238000005520 cutting process Methods 0.000 claims description 36
- 230000007704 transition Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a kind of anti-loosening bolt parts, including nut and screw rod, screw rod includes the upper pole part set gradually from top to bottom, intermediate shank portion and lower bar portion, it is at least uniformly provided with the gap of two segment structures in the outer circumferential walls of intermediate shank portion around its axle center circumferential direction, locating piece is connected with by adjustable spring in gap.The configuration of the present invention is simple, it is easy to use, it can effectively prevent nut there is a phenomenon where loosening, the safety for substantially increasing the reliability of equipment and using.
Description
Technical field
The present invention relates to mechanical fitting fields, are related specifically to a kind of anti-loosening bolt part.
Background technique
Bolt part is widely used in production and life for being fastenedly connected two parts for having through-hole.So
And traditional bolt part component is tightened after since the movement of component easily loosens.It is some important when bolt to be applied to
When the connection of component, fallen once bolt occurs to loosen even to unclamp, consequence is hardly imaginable.
Summary of the invention
It is above-mentioned to solve it is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of anti-loosening bolt part
Problem.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of anti-loosening bolt part, including nut and columnar screw rod used in conjunction with, the outer circumferential walls of screw rod
It is equipped with external screw thread, nut is equipped with the internal screw thread matched with the external screw thread of screw rod, and the upper end of screw rod is fixedly installed with end,
The screw rod includes the upper pole part set gradually from top to bottom, intermediate shank portion and lower bar portion, the outer diameter of upper pole part and intermediate shank portion
Identical, one end and the end of upper pole part are fixedly linked, and at least uniformly open up in the outer circumferential walls of intermediate shank portion around its axle center circumferential direction
There are two the gap of segment structure, the locating piece being adapted with its shape is equipped in gap, the inner sidewall of locating piece is by stretching
Contracting spring is connected with intermediate shank portion, adjustable spring in the raw when two locating pieces the distance between lateral wall be greater than
Between bar portion outer diameter, its lateral wall and the outer circumferential walls of the intermediate shank portion of gap two sides are smoothed when locating piece is moved in gap
It crosses；Lower bar portion is identical as the bore of upper pole part, and the top of lower bar portion and the lower part of intermediate shank portion are fixedly linked, the bottom of lower bar portion
For the small cross section to its upper in cross section of frustum cone structure and its underpart.
Further, it is fixed with inserted link on the medial surface of the locating piece, is offered in the gap of intermediate shank portion and inserted link
The slot that shape matches, adjustable spring are sheathed on inserted link, the both ends of adjustable spring respectively with the bottom of slot and inserted link
Outer end be fixedly linked.
Further, the inserted link includes the first cutting being successively fixedly linked, limited block and the second cutting, the first cutting
It is that the outer diameter of column structure and the first cutting is greater than the outer diameter of the second cutting, the end of the first cutting and positioning with the second cutting
Block is fixedly linked, and limited block is the axle center of the curved opening bar portion towards the middle of arc chip architecture and limited block, limited block it is big
The small outer diameter for being greater than the first cutting；Slot includes the first slot and the second slot, and the bore of the first slot is greater than the second slot
Bore, the first slot and the second slot are connected, and the external port of the first slot is connected with the outside world logical, and adjustable spring is sheathed on
In two cuttings and end of its both ends respectively with the outer end of the second cutting and the second slot is fixedly linked, outside the first slot
The bore of port is greater than the bore of the first cutting and is less than the size of limited block；The bore of first slot is greater than the big of limited block
Small, the bore of the second slot is greater than the bore of the second cutting and is less than the size of limited block.
Compared with prior art, beneficial effects of the present invention are as follows:
When needing for nut set to be set on screw rod, operator on the other hand makes locating piece to pressing at the axle center of intermediate shank portion
Inserted link is inserted in slot, the external of the outer wall of locating piece and intermediate shank portion seamlessly transits at this time, by nut from lower bar portion
Bottom is inserted in and rotating nuts move nut up from the lower part of screw rod；When nut is rotatably moved on upper pole part and to needs
When the component of connection is tightened, operator unclamps the pressing to locating piece, and locating piece can be due to adjustable spring at this time
Elastic force is popped up to the outside of gap, and locating piece protrudes from the outer circumferential walls of screw rod at this time, so that nut can not be along screw rod
External screw thread back-out downwards, avoid nut well with this and unclamp and back-out from screw rod.The configuration of the present invention is simple, user
Just, manufacturing cost is low, can effectively prevent nut there is a phenomenon where loosening, the peace for substantially increasing the reliability of equipment and using
Quan Xing.
Detailed description of the invention
Fig. 1 is the use state one of anti-loosening bolt part of the present invention.
Fig. 2 is the use state two of anti-loosening bolt part of the present invention.
Fig. 3 is the view in transverse section of intermediate shank portion of the present invention.
Fig. 4 is the partial structural diagram of anti-loosening bolt part of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to figs. 1 to 4, a kind of anti-loosening bolt part of the present invention, including nut 10 and be used cooperatively with it
Columnar screw rod.The outer circumferential walls of screw rod are equipped with external screw thread, and nut 10 with the external screw thread of screw rod equipped in matching
Screw thread, the upper end of screw rod are fixedly installed with end 20.Screw rod includes the upper pole part 30 set gradually from top to bottom, intermediate shank portion 40
With lower bar portion 50, upper pole part 30 is identical as the outer diameter of intermediate shank portion 40.One end of upper pole part 30 is fixedly linked with end 20, intermediate
The gap 41 of two segment structures is at least uniformly provided in the outer circumferential walls of bar portion 40 around its axle center circumferential direction.It is set in gap 41
There is the locating piece 50 being adapted with its shape, the inner sidewall of locating piece 50 is connected by adjustable spring 70 with intermediate shank portion 40.It stretches
Contracting spring 70 in the raw when two locating pieces 50 the distance between the midpoint of lateral wall be greater than the outer of intermediate shank portion 40
Diameter.Its lateral wall and the outer circumferential walls of the intermediate shank portion 40 of 41 two sides of gap are smoothed when locating piece 50 is moved in gap 41
It crosses.Lower bar portion 50 is identical as the bore of upper pole part 30, and the top of lower bar portion 50 and the lower part of intermediate shank portion 40 are fixedly linked.Lower beam
The bottom in portion 50 is the small cross section to its upper in cross section of frustum cone structure and its underpart, to facilitate 10 sets of nut to be set to spiral shell
On bar.
It is fixed with inserted link 60 on the medial surface of locating piece 50, is offered in the gap 41 of intermediate shank portion 40 and 60 shape of inserted link
The slot 42 matched.Adjustable spring 70 is sheathed on inserted link 60, the both ends of adjustable spring 70 respectively with the bottom of slot and
The outer end of inserted link 60 is fixedly linked.
Inserted link 60 includes the first cutting 61, limited block 62 and the second cutting 63 being successively fixedly linked.First cutting, 61 He
Second cutting 63 is that the outer diameter of column structure and the first cutting 61 is greater than the outer diameter of the second cutting 63.The end of first cutting 61
It is fixedly linked with locating piece 50.Limited block 62 is the axis of the curved opening bar portion 40 towards the middle of arc chip architecture and limited block 62
The heart, the size of limited block 62 are greater than the outer diameter of the first cutting 61.Slot 42 includes the first slot and the second slot, the first slot
Bore is greater than the bore of the second slot.First slot and the second slot are connected, and the external port of the first slot is connected with the outside world
It is logical.Adjustable spring 70 be sheathed in the second cutting 63 and its both ends respectively with the outer end of the second cutting 63 and the second slot
End is fixedly linked.The bore of the external port of first slot is greater than the bore of the first cutting 61 and is less than the size of limited block 62.
The bore of first slot is greater than the size of limited block 62, and the bore of the second slot is greater than the bore of the second cutting 63 and is less than limit
The size of block 62.Limited block 62 is set in the first slot and moves along the extending direction of the first slot.
During use, when needing for 10 sets of nut to be set on screw rod, operator is on the other hand by locating piece by the present invention
50 to pressing at the axle center of intermediate shank portion 40 so that inserted link 60 is inserted in slot, at this time the outer wall and intermediate shank portion of locating piece 50
40 external smooth transition, nut 10 is inserted in from the bottom of lower bar portion 50 and rotating nuts 10 make lower part of the nut 10 from screw rod
Up move；When nut 10 is rotatably moved on upper pole part 30 and the component connected to needs is tightened, operator
The pressing to locating piece 50 is unclamped, locating piece 50 can be popped up due to the elastic force of adjustable spring 70 to the outside of gap 41 at this time, this
When locating piece 50 protrude from the outer circumferential walls of screw rod so that nut 10 can not be back-outed downwards along the external screw thread of screw rod, with
This avoids nut 10 well and unclamps and back-out from screw rod.In order to make entire bolt part using relatively reliable, can basis
Need the different-thickness of fixed component to select the different bolt part of the first bar portion length so that when nut 10 tightens component its
Top of the lower part just with locating piece 50 fits, and so as to effectively prevent nut 10 to loosen, use is very convenient.When need
When unclamping nut, locating piece need to only be pressed inward against and screw out nut.Locating piece press rear entire bolt part structure and
Using similar with traditional bolt part.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of anti-loosening bolt part, including nut and columnar screw rod used in conjunction with, in the outer circumferential walls of screw rod
Equipped with external screw thread, nut is equipped with the internal screw thread matched with the external screw thread of screw rod, and the upper end of screw rod is fixedly installed with end,
Be characterized in that: the screw rod includes the upper pole part set gradually from top to bottom, intermediate shank portion and lower bar portion, upper pole part and intermediate bar
The outer diameter in portion is identical, and one end and the end of upper pole part are fixedly linked, in the outer circumferential walls of intermediate shank portion at least around its axle center circumferential direction
It is uniformly provided with the gap of two segment structures, is equipped with the locating piece being adapted with its shape, the inside of locating piece in gap
Wall is connected by adjustable spring with intermediate shank portion, adjustable spring in the raw when two locating pieces lateral wall between away from
From the outer diameter for being greater than intermediate shank portion, when locating piece is moved in gap outside the circumference of the intermediate shank portion of its lateral wall and gap two sides
Wall smooth transition；Lower bar portion is identical as the bore of upper pole part, and the top of lower bar portion and the lower part of intermediate shank portion are fixedly linked, lower beam
The bottom in portion is the small cross section to its upper in cross section of frustum cone structure and its underpart.
2. anti-loosening bolt part according to claim 1, it is characterised in that: be fixed on the medial surface of the locating piece slotting
Bar offers the slot matched with inserted link shape in the gap of intermediate shank portion, and adjustable spring is sheathed on inserted link, adjustable spring
Outer end of the both ends respectively with the bottom of slot and inserted link be fixedly linked.
3. anti-loosening bolt part according to claim 2, it is characterised in that: the inserted link includes to be successively fixedly linked
One cutting, limited block and the second cutting, the first cutting and the second cutting are that the outer diameter of column structure and the first cutting is greater than the
The outer diameter of two cuttings, end and the locating piece of the first cutting are fixedly linked, and limited block is the arc of arc chip architecture and limited block
The axle center of opening bar portion towards the middle, the size of limited block are greater than the outer diameter of the first cutting；Slot includes the first slot and second
Slot, the bore of the first slot are greater than the bore of the second slot, and the first slot and the second slot are connected, the outer end of the first slot
Mouth be connected with the outside world it is logical, adjustable spring be sheathed in the second cutting and its both ends respectively with the outer end of the second cutting and the
The end of two slots is fixedly linked, and the bore of the external port of the first slot is greater than the bore of the first cutting and is less than the big of limited block
It is small；The bore of first slot is greater than the size of limited block, and the bore of the second slot is greater than the bore of the second cutting and is less than limit
The size of block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122530.8A CN109139659A (en) | 2018-09-26 | 2018-09-26 | A kind of anti-loosening bolt part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122530.8A CN109139659A (en) | 2018-09-26 | 2018-09-26 | A kind of anti-loosening bolt part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139659A true CN109139659A (en) | 2019-01-04 |
Family
ID=64812522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811122530.8A Pending CN109139659A (en) | 2018-09-26 | 2018-09-26 | A kind of anti-loosening bolt part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139659A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968211A (en) * | 1995-08-30 | 1997-03-11 | Sanwa Tekki Corp | Nut-locking bolt |
| CN203081965U (en) * | 2013-02-26 | 2013-07-24 | 王兰会 | Bolt fixing device for preventing nut from being lost |
| CN104314954A (en) * | 2014-08-15 | 2015-01-28 | 中国航空工业集团公司沈阳发动机设计研究所 | Falling-off prevention connecting and fastening structure |
| CN205001347U (en) * | 2015-08-07 | 2016-01-27 | 海盐金牛标准件有限公司 | Bolt with reinforcing apparatus |
| CN206929183U (en) * | 2017-07-10 | 2018-01-26 | 山东高强紧固件有限公司 | A kind of anti-drop bolt component |
| CN207701558U (en) * | 2018-01-04 | 2018-08-07 | 东莞市安朗五金制品有限公司 | One kind is based on tempering Compound Heat Treatment technology special fastener |
-
2018
- 2018-09-26 CN CN201811122530.8A patent/CN109139659A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968211A (en) * | 1995-08-30 | 1997-03-11 | Sanwa Tekki Corp | Nut-locking bolt |
| CN203081965U (en) * | 2013-02-26 | 2013-07-24 | 王兰会 | Bolt fixing device for preventing nut from being lost |
| CN104314954A (en) * | 2014-08-15 | 2015-01-28 | 中国航空工业集团公司沈阳发动机设计研究所 | Falling-off prevention connecting and fastening structure |
| CN205001347U (en) * | 2015-08-07 | 2016-01-27 | 海盐金牛标准件有限公司 | Bolt with reinforcing apparatus |
| CN206929183U (en) * | 2017-07-10 | 2018-01-26 | 山东高强紧固件有限公司 | A kind of anti-drop bolt component |
| CN207701558U (en) * | 2018-01-04 | 2018-08-07 | 东莞市安朗五金制品有限公司 | One kind is based on tempering Compound Heat Treatment technology special fastener |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |