CN216343272U - Functional self-tapping screw convenient to use - Google Patents
Functional self-tapping screw convenient to use Download PDFInfo
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- CN216343272U CN216343272U CN202120883564.XU CN202120883564U CN216343272U CN 216343272 U CN216343272 U CN 216343272U CN 202120883564 U CN202120883564 U CN 202120883564U CN 216343272 U CN216343272 U CN 216343272U
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- tapping screw
- functional self
- convenient
- screw thread
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Abstract
The utility model relates to a functional self-tapping screw convenient to use, which sequentially comprises a pin head, a connecting part and a tail part from top to bottom, wherein the pin head is bilaterally symmetrical and comprises a contact and a wrapping part wrapped outside the contact, the upper end of the pin head is provided with a straight groove along the position of a symmetry axis, the technical effects that a conventional tool can be adopted in the assembling process and the head part of nylon glue is not damaged are achieved, C-angle treatment is carried out on the inner ring and the outer ring of a gasket, and a limiting ring with proper size is arranged, so that the problem that the self-tapping screw is difficult to operate in the assembling and using processes in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of screw equipment, in particular to a functional self-tapping screw convenient to use.
Background
The self-tapping screw is mainly used for connecting and fixing some thin plates, such as the connection of steel plates and steel plates, the connection of the steel plates and wall beams and the like, has high hardness, wide thread spacing, deep threads and unsmooth surfaces, and has various changes in the aspects of head shapes, wrenching modes, thread types, tail end forms of the rod parts and the like.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a functional self-tapping screw which is easy to use, and solves the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme: a functional self-tapping screw convenient to use comprises a screw head, a connecting part and a tail part from top to bottom in sequence;
the nail head is bilaterally symmetrical and comprises a contact and a wrapping part wrapped outside the contact, a linear groove is formed in the upper end of the nail head along the symmetry axis, two arc-shaped parts of the upper surface of the contact, which are symmetrical relative to the linear groove, and the bottom surface of the contact are exposed outside, and the exposed parts play a role in conducting electricity;
the lower end of the contact is of a cylindrical structure, the connecting part is of a cylindrical structure, and the radius of the cross section of the lower end of the contact is larger than that of the cross section of the connecting part;
a plurality of gaskets are sleeved outside the connecting part;
outer screw teeth are arranged on the outer surface of the tail portion.
Further, the wrapping part sequentially comprises an upper wrapping part and a lower wrapping part from top to bottom in an integrated forming manner;
the lower wrapping part wraps the outer side wall of the lower end of the contact except the bottom surface.
Furthermore, the cross section of the upper part of the nail head is hexagonal, and the cross section of the lower part of the nail head is circular.
Furthermore, a limiting ring is arranged on the outer surface of the joint of the connecting part and the tail part, and the outer diameter of the limiting ring is larger than the diameter of the inner ring of the gasket.
Furthermore, the outer screw threads comprise first outer screw threads and second outer screw threads, the height of the first outer screw threads is higher than that of the second outer screw threads, and the outer screw threads are arranged in a mode that the first outer screw threads and the second outer screw threads are sequentially alternated.
Furthermore, the cross section of the bottom of the nail head is circular, the outer screw teeth are uniformly distributed on the outer surface of the tail part, and the heights of all the outer screw teeth are equal.
Furthermore, the inner ring and the outer ring of the gasket are chamfered.
Further, the chamfering treatment is a C-angle treatment.
Further, the number of the washers is set to 4.
Further, the material of parcel portion is glass fiber reinforced nylon, is the mixture of nylon and glass fiber, specifically is nylon 66 and the glass fiber that the mass fraction is 35%.
Compared with the prior art, the utility model provides a functional self-tapping screw convenient to use, which has the following beneficial effects:
1. the straight groove is formed, so that the technical effect that a conventional tool can be adopted in the assembling process and the head part of the nylon rubber is not damaged is achieved;
2. the upper wrapping part is hexagonal, so that the multifunctional socket wrench is suitable for a conventional inner hexagonal socket wrench, and the technical effects that the multifunctional socket wrench is not easy to slip in the using process and can effectively protect the functional conductive contact wrapped inside are achieved;
3. c-angle treatment is carried out on the inner ring and the outer ring of the gasket, so that the technical effects that the gasket is easy to separate and convenient to use when in use are achieved;
4. the limiting ring with proper size is arranged, so that the technical effect of preventing the gasket from sliding downwards to improve the working efficiency in assembly and use is achieved;
5. the outer screw thread sets up to first outer screw thread, the outer screw thread of second form in turn, has reached and has do benefit to the product use and has changeed the technical effect of locking into and locking pine taking off.
Drawings
Fig. 1 is a partial sectional view of a self-tapping screw provided in embodiment 1 of the present invention;
fig. 2 is a plan view of a tapping screw provided in embodiment 1 of the present invention;
fig. 3 is a bottom view of a tapping screw provided in embodiment 1 of the present invention;
fig. 4 is a partial sectional view of a self-tapping screw provided in embodiment 2 of the present invention;
fig. 5 is a plan view of a tapping screw provided in embodiment 2 of the present invention.
In the figure: 1. a nail head; 2. a connecting portion; 3. a tail portion; 4. a straight slot; 5. a gasket; 6. a limiting ring; 7. external thread; 11. a contact; 12. a wrapping section; 71. a first outer thread; 72. a second outer thread; 121. An upper wrapping part; 122. and a lower wrapping part.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1:
as shown in fig. 1-3, the present invention provides a functional self-tapping screw, which comprises a head 1, a connecting portion 2 and a tail portion 3 integrally formed from top to bottom;
the nail head 1 is bilaterally symmetrical and comprises a contact 11 and a wrapping part 12 wrapping the outside of the contact 11, a straight groove 4 is formed in the upper end of the nail head 1 along the symmetry axis, two arc-shaped parts of the upper surface of the contact 11, which are symmetrical relative to the straight groove 4, and the bottom surface of the contact 11 are exposed outside, and the exposed parts play a role in conducting electricity;
the lower end of the contact 11 is of a cylindrical structure, the connecting part 2 is of a cylindrical structure, and the radius of the cross section of the lower end of the contact 11 is larger than that of the cross section of the connecting part 2;
a plurality of gaskets 5 are sleeved outside the connecting part 2;
the outer surface of the tail part 3 is provided with outer threads 7;
c-angle processing is carried out on the inner ring and the outer ring of the gasket 5;
the number of the gaskets 5 is 4;
the wrapping part 12 is made of glass fiber reinforced nylon, namely a mixture of nylon and glass fiber, specifically nylon 66 and glass fiber with the mass fraction of 35%;
the cross section of the bottom of the nail head 1 is circular, the outer threads 7 are uniformly distributed on the outer surface of the tail part 3, and the heights of all the outer threads 7 are equal.
Example 2:
as shown in fig. 4-5, the present invention provides another functional self-tapping screw, which comprises a head 1, a connecting portion 2 and a tail portion 3 integrally formed from top to bottom;
the nail head 1 is bilaterally symmetrical and comprises a contact 11 and a wrapping part 12 wrapping the outside of the contact 11, a straight groove 4 is formed in the upper end of the nail head 1 along the symmetry axis, two arc-shaped parts of the upper surface of the contact 11, which are symmetrical relative to the straight groove 4, and the bottom surface of the contact 11 are exposed outside, and the exposed parts play a role in conducting electricity;
the lower end of the contact 11 is of a cylindrical structure, the connecting part 2 is of a cylindrical structure, and the radius of the cross section of the lower end of the contact 11 is larger than that of the cross section of the connecting part 2;
a plurality of gaskets 5 are sleeved outside the connecting part 2;
the outer surface of the tail part 3 is provided with outer threads 7;
the wrapping part 12 sequentially comprises an upper wrapping part 121 and a lower wrapping part 122 from top to bottom in an integrally formed manner;
the height of the upper wrapping part 121 is greater than the depth of the straight groove 4;
the lower wrapping portion 122 wraps the outer side wall of the lower end of the contact 11 except the bottom surface;
c-angle processing is carried out on the inner ring and the outer ring of the gasket 5;
the number of the gaskets 5 is 4;
the wrapping part 12 is made of glass fiber reinforced nylon, namely a mixture of nylon and glass fiber, specifically nylon 66 and glass fiber with the mass fraction of 35%;
the cross section of the upper part of the nail head 1 is hexagonal, the cross section of the lower part of the nail head is circular, a limiting ring 6 is arranged on the outer surface of the joint of the connecting part 2 and the tail part 3, and the outer diameter of the limiting ring 6 is larger than the diameter of the inner ring of the gasket 5;
the outer screw threads 7 comprise first outer screw threads 71 and second outer screw threads 72, the first outer screw threads 71 are higher than the second outer screw threads 72, and the outer screw threads 7 are arranged in a mode that the first outer screw threads 71 and the second outer screw threads 72 are sequentially alternated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a functional type self tapping screw convenient to use which characterized in that: the nail head, the connecting part and the tail part are sequentially arranged from top to bottom;
the nail head is bilaterally symmetrical and comprises a contact and a wrapping part wrapping the outside of the contact, a linear groove is formed in the upper end of the nail head along the symmetry axis, and the upper surface of the contact is exposed outside relative to two arc parts symmetrical to the linear groove and the bottom surface of the contact;
the lower end of the contact is of a cylindrical structure, the connecting part is of a cylindrical structure, and the radius of the cross section of the lower end of the contact is larger than that of the cross section of the connecting part;
a plurality of gaskets are sleeved outside the connecting part;
outer screw teeth are arranged on the outer surface of the tail portion.
2. A functional self-tapping screw convenient to use as claimed in claim 1, wherein: the wrapping part sequentially comprises an upper wrapping part and a lower wrapping part from top to bottom in an integrated forming manner; the upper wrapping part wraps the upper end of the contact, and the lower wrapping part wraps the outer side wall of the lower end of the contact except the bottom surface.
3. A functional self-tapping screw convenient to use according to claim 2, wherein: the cross section of the upper part of the nail head is hexagonal, and the cross section of the lower part of the nail head is circular.
4. A functional self-tapping screw convenient to use according to claim 3, wherein: the outer surface of the joint of the connecting part and the tail part is provided with a limiting ring, and the outer diameter of the limiting ring is larger than the diameter of the inner ring of the gasket.
5. A functional self-tapping screw convenient to use according to claim 4, wherein: the outer screw thread includes first outer screw thread and the outer screw thread of second, the height of first outer screw thread is higher than the outer screw thread of second, outer screw thread sets up to first outer screw thread, the outer screw thread of second form in turn.
6. A functional self-tapping screw convenient to use as claimed in claim 1, wherein: the cross section of the bottom of the nail head is circular, the outer threads are uniformly distributed on the outer surface of the tail, and the heights of all the outer threads are equal.
7. A functional self-tapping screw for convenient use according to any one of claims 1 to 6, wherein: and chamfering the inner ring and the outer ring of the gasket.
8. A functional self-tapping screw for easy use according to claim 7, wherein: the chamfering treatment is C-angle treatment.
9. A functional self-tapping screw for easy use according to claim 7, wherein: the number of the gaskets is 4.
10. A functional self-tapping screw convenient to use as claimed in claim 1, wherein: the material of parcel portion is glass fiber reinforced nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120883564.XU CN216343272U (en) | 2021-04-27 | 2021-04-27 | Functional self-tapping screw convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120883564.XU CN216343272U (en) | 2021-04-27 | 2021-04-27 | Functional self-tapping screw convenient to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343272U true CN216343272U (en) | 2022-04-19 |
Family
ID=81128273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120883564.XU Active CN216343272U (en) | 2021-04-27 | 2021-04-27 | Functional self-tapping screw convenient to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343272U (en) |
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2021
- 2021-04-27 CN CN202120883564.XU patent/CN216343272U/en active Active
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