CN209294221U - A kind of checknut fastener - Google Patents
A kind of checknut fastener Download PDFInfo
- Publication number
- CN209294221U CN209294221U CN201821556654.2U CN201821556654U CN209294221U CN 209294221 U CN209294221 U CN 209294221U CN 201821556654 U CN201821556654 U CN 201821556654U CN 209294221 U CN209294221 U CN 209294221U
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- CN
- China
- Prior art keywords
- nut
- key pin
- bolt
- grab
- 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.)
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Links
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The utility model discloses a kind of a kind of checknut fastener being made of bolt, nut and both fixed key pin grab, on the screw rod of the bolt, at least provided with a screw rod key pin slot；The screw rod key pin slot is parallel with bolt axle, and length is partly or entirely to run through external thread of screw；On the internal thread of the nut, at least provided with a nut key pin slot；The nut key pin slot and nut shaft run through nut inner thread in parallel, and length is a part or whole of nut inner thread height upper end；Key pin is inserted into the screw rod key pin slot and nut key pin slot is combined in the key pin hole of composition, it is characterised in that: by 1 font key pin and to sleep U-shaped card hook connects integrally form p-shaped key pin grab, the p-shaped key pin grab be an elastic metallic yarn；One end of the grab head is vertical with nut shaft or tilts the grab hole caught on the nut side wall, the position of axial restraint key pin upwards, and reaches threaded fastener never becoming loose, and repeatedly used purpose.
Description
Technical field
The utility model relates to a kind of checknut fastener more particularly to a kind of repeatedly used never becoming looses
The key pin grab of bolt, nut and fixed the two.
Background technique
Existing CN108150510A " circlip screw nut " discloses a kind of circlip screw nut, including screw and nut:
The outer of the screw rod of the screw is placed equipped with axial groove；The groove is equipped with circle symmetrical two；Described groove one end is passed through
Top one end of logical screw contradicts the head of screw to screw；The screw rod of the screw is equipped with nut；Card is equipped in the groove
Spring；The bullet laminated structure that the circlip is in U-shape；The circlip can be inserted in two grooves, and the circlip can incite somebody to action
Nut on screw rod is laterally outwardly withstood, so nut will not loosen on screw rod.The disadvantage is that the elastic slice circlip of the U-shaped has
It may leap up out to one end of screw rod along axial notch in the case where high vibration, lose the effect of retainingf key or pin, and make spiral shell
Nail and the opposite loosening of nut.
Utility model content
The purpose of the utility model is to provide a kind of checknut fasteners, in use, will not make key under high vibration
Pin card hook is leapt up out to one end of screw rod along axial notch, is fallen off, and loses the effect of retainingf key or pin, to make bolt and nut
Never becoming loose is kept under the working condition that impersonal force is removed intentionally.
In order to achieve the above objectives, the utility model uses a kind of checknut fastener, including bolt, nut and key
Pin, at least provided with a screw rod key pin slot on the screw rod of the bolt；The screw rod key pin slot is parallel with bolt axle, and length is
Partly or entirely run through external thread of screw；The section of the screw rod key pin slot is circle or ellipse or quadrangle or triangle
Shape lacks；On the internal thread of the nut, at least provided with a nut key pin slot；The nut key pin slot passes through in parallel with nut shaft
Nut inner thread is worn, length is a part or whole of nut inner thread height upper end；The section of the nut key pin slot and institute
State the section combination of screw rod key pin the slot big circle of composition ratio key pin section or ellipse or quadrangle or triangle together
Key pin hole, the key pin are inserted into the 1 font key pin hole of the combination together, it is characterised in that:
On the side wall of the nut, place is equipped with the grab hole on nut side wall recently with nut key pin slot；The nut
Grab hole on side wall is blind hole or open-work；The grab hole axle is vertical with nut shaft or the inside is by nut key pin slot
One end tilts upwards；
By 1 font key pin and sleep U-shaped grab and be connected to one and form p-shaped key pin grab；
It is the flexible wire of same root between the grab head for sleeping U-shaped grab and 1 font key pin；The card
One end of gib head and nut shaft vertically or upwards obliquely catch on the grab hole on the nut side wall, thus axially firmly
The position of fixed key pin, make key pin will not combined by the screw rod key pin slot and nut key pin slot at key pin hole one end leap up out.
The bolt, including further include the bolt of reverse frustoconic side wall except plain bolt.Plain bolt includes bolt
Head and screw rod, screw rod is cylindrical, and has left-hand thread or right-hand thread above.The bolt of the inverted round stage side wall, feature
Be: the bolt is that the bolt of reverse frustoconic side wall further includes described in addition to including convex or recessed bolt head, screw rod
The bolt wedge of one section of reverse frustoconic is equipped between bolt head and the screw rod, the stub end of the reverse frustoconic bolt wedge is equipped with
The small head end of coaxially connected bolt head, the bolt wedge is equipped with coaxially connected screw rod, and the screw diameter compares reverse frustoconic
The small head end cross-sectional diameter in hole is small.
The beneficial effects of the utility model are: due to using elastic fastening hook and 1 font key pin as same one metal wire,
Grab head or upward firmly elasticity catch on the grab hole on nut side wall again, so hook will not be taken off, 1 word with the first body of grab
Shape key pin would not also leap up out from key pin hole one end, and the threaded connection between bolts and nuts is also just stronger, artificially not dismantle
This checknut fastener, operating condition never loosen.
Detailed description of the invention
Fig. 1 is a kind of one of schematic diagram of checknut fastener of the utility model.
Fig. 2 is the two of a kind of schematic diagram of checknut fastener of the utility model.
Fig. 3 is the three of a kind of schematic diagram of checknut fastener of the utility model.
Fig. 4 is a kind of nut expanded view of checknut fastener of the utility model.
Fig. 5 is a kind of bolt figure of checknut fastener of the utility model.
Fig. 6 is a kind of p-shaped key pin grab figure of checknut fastener of the utility model.
In figure:
100, bolt 101, bolt head
102, screw rod 103, external thread of screw
104, screw rod key pin slot 200, nut
201, nut inner thread 202, nut side wall
203, the grab hole 204 on nut side wall, nut key pin slot
300, p-shaped key pin grab 301, key pin
302, grab 303, grab head
400, bolt or nut shaft 500, key pin hole
600, upper connector 700, lower connector
800, screw hole 900, plain washer
1000, spring pad 1100, plush copper reverse frustoconic side wall bolt
1200, concave head reverse frustoconic side wall bolt 1300, the interior truncated cone-shaped areole that falls
1400, reverse frustoconic side wall
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
In FIG. 1 to FIG. 6, its structure of the utility model includes bolt 100, nut 200, p-shaped key pin grab 300 or plain cushion
Circle 900 or spring pad 1000, wherein bolt 100 includes the concave head reverse frustoconic side wall spiral shell in the plain bolt or Fig. 2 in Fig. 1
Plush copper reverse frustoconic side wall bolt 1100 in bolt 1200 or Fig. 3.
Screw rod key pin slot 104 is parallel with bolt axle 400 at least provided with a screw rod key pin slot 104 on screw rod 102,
And length thereof or extend completely through external thread of screw 103；The section of the screw rod key pin slot 104 be round or ellipse or
Quadrangle or triangle lack；At least provided with a nut key pin slot 204 on the internal thread of nut 200；The nut key pin slot 204
Run through nut inner thread 201 in parallel with nut shaft 400, length is a part or complete of 201 height upper end of nut inner thread
Portion's nut inner thread 201；The section of the nut key pin slot 204 is combined with the section of the screw rod key pin slot 104 and is constituted together
The key pin hole 500 of the circle or ellipse or quadrangle or triangle more slightly larger than 301 section of key pin.The nut 200
On nut side wall 202, place is equipped with the grab hole 203 on nut side wall recently with nut key pin slot 204, on the nut side wall
Horizontal or acclivitous nut grab hole 203 be blind hole or open-work；The hole axle and nut shaft in the grab hole 203
Vertically or upwards tilt；The key pin is connected to one composition p-shaped key pin card with U-shaped grab 302 is slept for 1 font key pin 301
Hook 300；1 font key pin, 301 section just fills key pin hole composed by screw rod key pin slot 104 and nut key pin slot 204
500 section, makes to be inserted between nut 200 and screw rod 102 by the key pin 301 of the p-shaped key pin grab 300 and is made group in advance
In the key pin hole 500 of conjunction, so that nut 200 be made to connect and be fixed up with 102 spiral of screw rod, make nut 200 and 102 diameter of screw rod
It is motionless to twisting.
It is that the same root connected has bullet between the font of grab head 303 and 1 key pin 301 for sleeping U-shaped grab 302
The p-shaped wire of property；One end of the grab head 303 and nut shaft vertically or upwards obliquely catch on the card on nut side wall
Dog hole 203, so that the position of axial restraint key pin 301, makes key pin 301 will not be from screw rod key pin slot 104 and nut key pin slot
It leaps up out 500 one end of key pin hole composed by 204.
The application method of the utility model: when fastening this checknut fastener, first by pre-fabricated band screw rod key pin slot
The screw rod 102 of 104 bolt 100 pierces into the screw hole 800 of two upper and lower connectors 600,700, in addition plain washer 900, bullet
Spring pad 1000, and spiral tightens nut 200, upper and lower connector 600,700 is fastened together, then by nut 200 to returning
It twists, makes nut key pin slot 204 and a nearest screw rod key pin slot 104 composition key pin hole 500, then from external thread of screw
1 font key pin 301 of 103 104 one end of screw rod key pin slot insertion p-shaped key pin grab 300 is in key pin hole 500,1 font key pin
301 length is shorter or long than the length of nut key pin slot 204, and the length of screw rod key pin slot 104 extends downwardly into upper connector 600
Upper surface at, push grab head 303 aside with pliers, pulled down along nut side wall 202, until grab head 303 end lean on grab
In grab hole 203 on 302 elasticity insertion nut side wall, installation terminates.
A kind of checknut fastener of the utility model can be dismantled artificially, and Reusability does not influence its using effect.
When artificially dismantling this checknut fastener, grab head 303 first is clamped in nut side wall with pliers or specific purpose tool
On grab hole 203 aperture outside, drag downwards outward, overcome the elastic force of grab 302, from the grab hole 203 on nut side wall
Middle pull-out grab head 303, then transferred to key pin 301 from key pin hole 500 with pliers or hand, nut 200 is backed out, from screw hole 800
Middle pull-out bolt 100, disassembly finishes.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model creation, all
Within the spirit and principle that the utility model is created, made any modification, equivalent replacement, improvement etc. should be included in this
Within the protection scope that utility model is created.
Claims (3)
1. a kind of checknut fastener, including bolt, nut and key pin, at least provided with a spiral shell on the screw rod of the bolt
Bar key pin slot；The screw rod key pin slot is parallel with bolt axle, and length is partly or entirely to run through external thread of screw；The screw rod key
The section of cotter way is round or ellipse or quadrangle or triangle lack；On the internal thread of the nut, at least provided with one
Nut key pin slot；The nut key pin slot and nut shaft run through nut inner thread in parallel, and length is in nut inner thread height
The a part at end is whole；The section of the nut key pin slot combines composition ratio key together with the section of the screw rod key pin slot
The key pin hole of the big circle of section or ellipse or quadrangle or triangle is sold, the key pin is inserted into 1 word of the combination together
In type key pin hole, it is characterised in that:
On the side wall of the nut, place is equipped with the grab hole on nut side wall recently with nut key pin slot；The nut side wall
On grab hole be blind hole or open-work；The grab hole axle is vertical with nut shaft or the inside by one end of nut key pin slot to
Upper inclination；
By 1 font key pin and sleep U-shaped grab and be connected to one and form p-shaped key pin grab；
It is the flexible wire of same root between the grab head for sleeping U-shaped grab and 1 font key pin；The grab head
One end and nut shaft vertically or upwards obliquely catch on the grab hole on the nut side wall, so that axial securely fix key
The position of pin.
2. a kind of checknut fastener according to claim 1, it is characterised in that: the bolt is plain bolt, including
Bolt head and screw rod, screw rod is cylindrical, and has left-hand thread or right-hand thread above.
3. a kind of checknut fastener according to claim 1, it is characterised in that: the bolt is reverse frustoconic side wall
Bolt further includes being equipped with one section between the bolt head and the screw rod to fall in addition to including convex or recessed bolt head, screw rod
The bolt wedge of truncated cone-shaped, the stub end of the reverse frustoconic bolt wedge are equipped with coaxially connected bolt head, the bolt wedge it is small
Head end is equipped with coaxially connected screw rod, and screw diameter head end cross-sectional diameter smaller than reverse frustoconic hole is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556654.2U CN209294221U (en) | 2018-09-15 | 2018-09-15 | A kind of checknut fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556654.2U CN209294221U (en) | 2018-09-15 | 2018-09-15 | A kind of checknut fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294221U true CN209294221U (en) | 2019-08-23 |
Family
ID=67653404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821556654.2U Active CN209294221U (en) | 2018-09-15 | 2018-09-15 | A kind of checknut fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953351A (en) * | 2018-09-15 | 2018-12-07 | 杨富云 | A kind of checknut fastener |
| CN111306175A (en) * | 2020-04-08 | 2020-06-19 | 海盐永捷科技股份有限公司 | Locking anti-vibration screw subassembly |
| CN112412324A (en) * | 2020-10-27 | 2021-02-26 | 广东电网有限责任公司 | A equipment cat ladder for transmission line overhauls |
-
2018
- 2018-09-15 CN CN201821556654.2U patent/CN209294221U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953351A (en) * | 2018-09-15 | 2018-12-07 | 杨富云 | A kind of checknut fastener |
| CN111306175A (en) * | 2020-04-08 | 2020-06-19 | 海盐永捷科技股份有限公司 | Locking anti-vibration screw subassembly |
| CN111306175B (en) * | 2020-04-08 | 2021-11-02 | 海盐永捷科技股份有限公司 | Locking anti-vibration screw subassembly |
| CN112412324A (en) * | 2020-10-27 | 2021-02-26 | 广东电网有限责任公司 | A equipment cat ladder for transmission line overhauls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200521 Address after: No.32, ningliu Road, Jiangbei new district, Nanjing City, Jiangsu Province Patentee after: Nanjing Biaoyi Environmental Protection Engineering Co., Ltd Address before: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Liu Dong Cun Yang Jia Xiang, No. 23 Patentee before: Yang Fuyun |