CN207005048U - Multi-step structural formula nut - Google Patents
Multi-step structural formula nut Download PDFInfo
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- CN207005048U CN207005048U CN201720926463.XU CN201720926463U CN207005048U CN 207005048 U CN207005048 U CN 207005048U CN 201720926463 U CN201720926463 U CN 201720926463U CN 207005048 U CN207005048 U CN 207005048U
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- cylinder
- axial length
- annular groove
- disk
- strip bulge
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Abstract
A kind of multi-step structural formula nut,Including the disk by coaxial line,First cylinder,The nut body of second cylinder and the 3rd cylinder composition,Tapped through hole is offered on nut body,Some sawtooth projections are evenly equipped with disk periphery wall,First annular groove is provided between disk and the first cylinder,Some first strip bulges are provided tiltedly with the outer wall of first cylinder,The second annular groove is provided between first cylinder and the second cylinder,The axial length of second annular groove is equal with the axial length of the first cylinder,The axial length of second cylinder is 1.5 times of the first cylinder axial length,Some second strip bulges are provided tiltedly with the outer wall of second cylinder,The incline direction of second strip bulge is opposite with the incline direction of the first strip bulge,Second,The 3rd annular groove is provided between 3rd cylinder,The utility model can be after insertion,Contact area effectively between increase and plastic part,Both are made closely to connect,Prevent from coming off.
Description
Technical field
A kind of fastener is the utility model is related to, is especially a kind of multi-step structural formula nut.
Background technology
The nut in the electronic products such as mobile phone, notebook computer, projecting apparatus is applied just towards fine, firm, durable
Direction is developed, and this nut is inlaid in the part of plastic material mostly, the internal thread set by inner chamber, with bolt or screw rod
Coordinate, play a part of being fastenedly connected.Because the volume of electronic product is relatively small, it is desirable to which the volume of nut is also small, causes
The contact area of nut and plastic part is very small, causes connection not close, when by slightly larger torsion or shearing force, spiral shell
Mother will come off, and the normal use of electron product brings harmful effect.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of multi-step structural formula nut, can have after insertion
Contact area between effect increase and plastic part, makes both closely connect, prevents from coming off.
Technical solution of the present utility model is to provide a kind of multi-step structural formula nut with following structure, bag
Include the nut body being made up of disk, the first cylinder, the second cylinder and the 3rd cylinder, disk, the first cylinder, second
Cylinder and the 3rd cylinder are arranged in order from top to bottom, and coaxial line, are offered on nut body through disk, the first cylinder
The tapped through hole of body, the second cylinder and the 3rd cylinder, is evenly equipped with some sawtooth projections on the periphery wall of disk, disk with
First annular groove is provided between first cylinder, the axial length of first annular groove is twice of disk axial length, the
Some first strip bulges are tiltedly installed with the periphery wall of one cylinder, the is provided between the first cylinder and the second cylinder
Second ring groove, the axial length of the second annular groove is equal with the axial length of the first cylinder, the axial direction of the second cylinder
Length is 1.5 times of the first cylinder axial length, and it is convex that some second bar shapeds are tiltedly installed with the periphery wall of the second cylinder
Rise, the incline direction of the incline direction of the second strip bulge and the first strip bulge is on the contrary, the second cylinder and the 3rd cylinder
Between be provided with the 3rd annular groove, the axial length of the 3rd annular groove is equal with the axial length of the 3rd cylinder, the first ring
The diameter of connected in star and the second annular groove is equal with the diameter of the 3rd cylinder.
Multi-step structural formula nut described in the utility model, wherein, first strip bulge and the second strip bulge
Cross section it is triangular in shape.
Multi-step structural formula nut described in the utility model, wherein, first strip bulge and the second strip bulge
Both sides external face between angle be 75 °.
Multi-step structural formula nut described in the utility model, wherein, between first strip bulge and horizontal plane
Angle is 115 °, and the angle between second strip bulge and horizontal plane is 65 °.
Multi-step structural formula nut described in the utility model, wherein, nut body is made of copper product.
After above structure, compared with prior art, the utility model multi-step structural formula nut has advantages below：
After in the part of the utility model insertion plastic material, some sawtooth projections, the first strip bulge and the second strip bulge
The contact area with plastic part can be greatly increased, improves the compactness of both connections；When by slightly larger torsion or shearing
During power, some sawtooth projections and the first strip bulge being obliquely installed and the second strip bulge can prevent the utility model
The rotation of nut, serve rotation stop effect；In the presence of first annular groove, the second annular groove and the 3rd annular groove,
The meeting that embedded nut is connected with plastic part is more firm, reaches good anti-dropout effect.
Cross section is triangular in shape and the first strip bulge and the second strip bulge that are obliquely installed, can make anti-rotation effect more
It is good.
Angle between first strip bulge and the both sides external face of the second strip bulge is 75 °, can make the first bar shaped
The connection effect of raised, the second strip bulge and plastic part is more preferable, further functions as preferable anti-rotation effect.
Angle between first strip bulge and horizontal plane is 115 °, and the angle between the second strip bulge and horizontal plane is
65 °, this structure can make anti-rotation effect more preferable.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model multi-step structural formula nut.
Embodiment
The utility model multi-step structural formula nut is made further specifically with reference to the accompanying drawings and detailed description
It is bright：
As shown in figure 1, in this embodiment, the utility model multi-step structural formula nut is included by disk 2, the
The nut body of one cylinder 4, the second cylinder 7 and the 3rd cylinder 10 composition, disk 2, the first cylinder 4, the second cylinder
The cylinder 10 of body 7 and the 3rd is arranged in order from top to bottom, and coaxial line.Nut body is made of copper product, on nut body
Offer the tapped through hole 1 through disk 2, the first cylinder 4, the second cylinder 7 and the 3rd cylinder 10.The periphery of disk 2
Some sawtooth projections 3 are evenly equipped with wall, first annular groove 5 is provided between the cylinder 4 of disk 2 and first, it is first annular recessed
The axial length of groove 5 is twice of the axial length of disk 2.Some first are tiltedly installed with the periphery wall of first cylinder 4
Shape projection 6, is provided with the second annular groove 11 between the first cylinder 4 and the second cylinder 7, the axial direction of the second annular groove 11 is long
Degree is equal with the axial length of the first cylinder 4.The axial length of second cylinder 7 is the 1.5 of the axial length of the first cylinder 4
Times, be tiltedly installed with some second strip bulges 8 on the periphery wall of the second cylinder 7, the incline direction of the second strip bulge 8 with
The incline direction of first strip bulge 6 is opposite.The 3rd annular groove 9 is provided between second cylinder 7 and the 3rd cylinder 10, the
The axial length of three annular grooves 9 is equal with the axial length of the 3rd cylinder 10, the first annular annular groove of groove 5 and second
11 diameter is equal with the diameter of the 3rd cylinder 10.
Angle between first strip bulge 6 and horizontal plane is 115 °, the angle between the second strip bulge 8 and horizontal plane
For 65 °.The cross section of first strip bulge 6 and the second strip bulge 8 is triangular in shape, the first strip bulge 6 and the second bar shaped
Angle between the both sides external face of projection 8 is 75 °.
After in the part of the utility model insertion plastic material, the plastics of fusing can be circulated into adjacent sawtooth projection
3rd, the first adjacent strip bulge 6, the second adjacent strip bulge 7, first annular groove 5, the second annular groove 11 and
In three annular grooves 9, after solidification, some sawtooth projections 3, the first strip bulge 6 and the second strip bulge 7 just considerably increase
With the contact area of plastic part, the compactness that both connect is improved；When by slightly larger torsion or shearing force, some saws
Toothed projections 3 and the first strip bulge 6 being obliquely installed and the second strip bulge 7 can prevent turning for the utility model nut
It is dynamic, serve rotation stop effect；It is embedded in the presence of first annular groove 5, the second annular groove 11 and the 3rd annular groove 9
The meeting that is connected with plastic part of nut it is more firm, reach good anti-dropout effect.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical scheme of utility model is made, all should fall into the scope of protection of the utility model.
Claims (5)
- A kind of 1. multi-step structural formula nut, it is characterised in that：Including by disk (2), the first cylinder (4), the second cylinder (7) and the 3rd cylinder (10) composition nut body, the disk (2), the first cylinder (4), the second cylinder (7) and the Three cylinders (10) are arranged in order from top to bottom, and coaxial line, are offered on the nut body through disk (2), the first circle The tapped through hole (1) of cylinder (4), the second cylinder (7) and the 3rd cylinder (10), it is uniform on the periphery wall of the disk (2) There are some sawtooth projections (3), be provided with first annular groove (5) between the disk (2) and the first cylinder (4), described The axial length of one annular groove (5) is twice of disk (2) axial length, the periphery wall updip of first cylinder (4) Some first strip bulges (6) are tiltedly provided with, the second annular is provided between first cylinder (4) and the second cylinder (7) Groove (11), the axial length of second annular groove (11) is equal with the axial length of the first cylinder (4), and described second The axial length of cylinder (7) is 1.5 times of the first cylinder (4) axial length, on the periphery wall of second cylinder (7) It is tiltedly installed with some second strip bulges (8), the incline direction and the first strip bulge (6) of second strip bulge (8) Incline direction on the contrary, be provided with the 3rd annular groove (9) between second cylinder (7) and the 3rd cylinder (10), it is described The axial length of 3rd annular groove (9) is equal with the axial length of the 3rd cylinder (10), the first annular groove (5) and The diameter of second annular groove (11) is equal with the diameter of the 3rd cylinder (10).
- 2. multi-step structural formula nut according to claim 1, it is characterised in that：First strip bulge (6) and The cross section of two strip bulges (8) is triangular in shape.
- 3. multi-step structural formula nut according to claim 2, it is characterised in that：First strip bulge (6) and Angle between the both sides external face of two strip bulges (8) is 75 °.
- 4. multi-step structural formula nut according to claim 3, it is characterised in that：First strip bulge (6) and water Angle between plane is 115 °, and angle of second strip bulge (8) between horizontal plane is 65 °.
- 5. multi-step structural formula nut according to claim 4, it is characterised in that：The nut body uses copper product system Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926463.XU CN207005048U (en) | 2017-07-28 | 2017-07-28 | Multi-step structural formula nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926463.XU CN207005048U (en) | 2017-07-28 | 2017-07-28 | Multi-step structural formula nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005048U true CN207005048U (en) | 2018-02-13 |
Family
ID=61456523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720926463.XU Active CN207005048U (en) | 2017-07-28 | 2017-07-28 | Multi-step structural formula nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005048U (en) |
-
2017
- 2017-07-28 CN CN201720926463.XU patent/CN207005048U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314317 Yuantong Industrial Park, Yuantong Street, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Rongyi Precision Machinery Co., Ltd. Address before: 314317 Yuantong Industrial Park, Yuantong Street, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Ronnie Precision Machine Co., Ltd. |