CN212717570U - Anti-loosening and anti-pulling wood screw - Google Patents
Anti-loosening and anti-pulling wood screw Download PDFInfo
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- CN212717570U CN212717570U CN202021433851.2U CN202021433851U CN212717570U CN 212717570 U CN212717570 U CN 212717570U CN 202021433851 U CN202021433851 U CN 202021433851U CN 212717570 U CN212717570 U CN 212717570U
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- screw
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- chip removal
- thread
- screw rod
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Abstract
The utility model discloses a locking anti-loosening resistance to plucking wood screw, including screw rod and the nut of setting in the screw rod upper end, the screw rod includes bottom cutting section, middle part screw thread section and upper portion fastening section, and the diameter of fastening section is greater than the screw thread section, and the fastening section is equipped with chip removal screw thread and a plurality of protruding piece, and protruding piece evenly arranges around the screw rod. The chip removal screw thread is equipped with two cutting faces at least, and forms the chip groove between two adjacent chip removal screw threads, conveniently will beat the sweeps discharge of drilling in-process, and protruding piece cross section is the design of falling triangle-shaped, evenly arranges around the screw rod for the screw is not hard up is placed to the fixed screw, has played the stable effect of resistance to plucking, strengthens the firmness, improves factor of safety.
Description
Technical Field
The utility model relates to a technical field is connected to the panel, and specific is a locking anti-loosening resistance to plucking wood screw.
Background
The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. The screw is a general term of the fastener, and is an indispensable industrial necessity in daily life; the screws are generally called wood screws; the screw is the one with a sharp head at the front end, has a larger screw pitch, and is generally used for fastening wooden parts and plastic parts. The screw rod is a machine screw, is flat-headed at the front end, has small and uniform screw pitch, and is generally used for fastening metal and machine parts. The screw rod of current wood screw generally only is equipped with the screw thread section, does not have the chip removal function, and a large amount of saw-dusts are piled up and are leaded to the panel fracture in the drilling process, and simultaneously, the saw-dust is piled up and is made the screw unable fastening appear not hard up the condition of rocking at the entrance to a cave.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough that exists among the background art, the utility model discloses a locking resistance to plucking wood screw, including screw rod and the nut of setting in the screw rod upper end, the screw rod includes bottom cutting section, middle part screw thread section and upper portion fastening section, the diameter of fastening section is greater than the screw thread section, the fastening section is equipped with chip removal screw thread and a plurality of protruding piece, protruding piece centers on the screw rod is evenly arranged.
Further, the thread direction of the chip removal thread is consistent with the thread direction of the thread section.
Further, the chip removal screw thread includes two at least cutting faces, and adjacent two form the chip groove between the chip removal screw thread.
Furthermore, an anti-skid limiting ring is arranged between the screw cap and the fastening section.
Furthermore, the bottom surface of the anti-skidding limiting ring is provided with anti-skidding lines.
Further, the cross section of the convex block is designed into an inverted triangle.
Furthermore, the plane of the upper end of the protruding block is perpendicular to the screw rod, and the lower end of the protruding block is attached to the screw rod.
The utility model has the advantages that the upper end of the screw rod is provided with a fastening section which comprises a chip removal thread and a plurality of convex blocks, the chip removal thread is at least provided with two cutting surfaces, and a chip removal groove is formed between two adjacent chip removal threads, thereby facilitating the discharge of the waste chips in the drilling process; the cross section of the convex block is designed into an inverted triangle, and the convex block is uniformly arranged around the screw rod and used for fixing the screw to place the screw to be loose, so that the anti-pulling stability is realized, the firmness is enhanced, and the safety factor is improved.
Drawings
The utility model discloses there is following figure:
fig. 1 is a schematic structural view of a loosening-preventing and pulling-resisting wood screw of the present invention;
FIG. 2 is an enlarged schematic view of the chip ejection thread in the fastening section;
FIG. 3 is a schematic cross-sectional view of a bump in the fastening section;
fig. 4 is a schematic view of the anti-slip spacing ring.
The anti-skid thread comprises a screw rod 1, a screw cap 2, a screw cap 3, a cutting section 4, a thread section 5, a fastening section 6, a chip removal thread 7, a convex block 8, a cutting surface 9, a chip removal groove 10, an anti-skid limiting ring 11 and an anti-skid thread.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The embodiment refers to fig. 1, and provides an anti-loosening and anti-pulling wood screw, which comprises a screw rod 1 and a screw cap 2 arranged at the upper end of the screw rod 1, wherein the screw rod 1 comprises a bottom cutting section 3, a middle thread section 4 and an upper fastening section 5, the diameter of the fastening section 5 is larger than that of the thread section 4, the fastening section 5 is provided with a chip removal thread 6 and a plurality of protruding blocks 7, and the protruding blocks 7 are uniformly arranged around the screw rod 1.
In an embodiment, referring to fig. 2, the thread 6 for chip removal includes at least two cutting surfaces 8, and a chip removal groove 9 is formed between two adjacent threads 6 for chip removal.
Preferably, the thread direction of the chip removal thread 6 coincides with the thread direction of the threaded segment 4. A large amount of pieces that the process of drilling produced are discharged along with chip groove 9, prevent that the saw-dust from piling up and lead to the panel fracture, have also avoided the entrance to a cave position to appear not hard up unstable condition because the saw-dust is piled up simultaneously.
In an embodiment, referring to fig. 4, an anti-slip limiting ring 10 is disposed between the nut 2 and the fastening section 5, and the bottom surface of the anti-slip limiting ring 10 is provided with anti-slip threads 11, so as to increase the frictional resistance of the contact surface and prevent the bottom surface of the anti-slip limiting ring 10 from damaging the surface of the installation equipment during drilling.
In the embodiment, referring to fig. 3, the cross section of the protruding block 7 is designed as an inverted triangle, the upper end plane of the protruding block 7 is perpendicular to the screw rod 1, and the lower end is attached to the screw rod 1. Through chip groove 9 is with a large amount of saw-dust exhaust backs, and the accumulational condition of saw-dust can not appear in the entrance to a cave, cooperates a plurality of protruding pieces 7 simultaneously, and further fixed screw prevents that not hard up condition from appearing in the screw, plays resistance to plucking fixed effect.
Compared with the prior art, the scheme has the advantages that: the upper end of the screw is provided with a fastening section which comprises a chip removal thread and a plurality of convex blocks, the chip removal thread is at least provided with two cutting surfaces, and a chip removal groove is formed between every two adjacent chip removal threads, so that waste chips in the drilling process can be conveniently discharged; the cross section of the convex block is designed into an inverted triangle, and the convex block is uniformly arranged around the screw rod and used for fixing the screw to place the screw to be loose, so that the anti-pulling stability is realized, the firmness is enhanced, and the safety factor is improved.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (7)
1. The utility model provides an anti-loosening resistance to plucking wood screw, includes the screw rod and sets up the nut in the screw rod upper end, its characterized in that, the screw rod includes bottom cutting section, middle part screw thread section and upper portion fastening section, the diameter of fastening section is greater than the screw thread section, the fastening section is equipped with chip removal screw thread and a plurality of protruding piece, protruding piece centers on the screw rod is evenly arranged.
2. The screw of claim 1, wherein the thread direction of the chip removal thread is the same as the thread direction of the thread section.
3. The screw of claim 2, wherein the chip removal threads include at least two cutting surfaces, and a chip removal groove is formed between two adjacent chip removal threads.
4. The screw of claim 1, wherein an anti-slip retainer ring is disposed between the nut and the fastening section.
5. The screw of claim 4, wherein the bottom surface of the anti-slip and anti-pulling limiting ring is provided with anti-slip lines.
6. The screw of claim 1, wherein the cross section of the protruding block is of an inverted triangular design.
7. The screw as claimed in claim 6, wherein the protrusion has an upper plane perpendicular to the screw shaft and a lower plane abutting the screw shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433851.2U CN212717570U (en) | 2020-07-20 | 2020-07-20 | Anti-loosening and anti-pulling wood screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433851.2U CN212717570U (en) | 2020-07-20 | 2020-07-20 | Anti-loosening and anti-pulling wood screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717570U true CN212717570U (en) | 2021-03-16 |
Family
ID=74907029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021433851.2U Active CN212717570U (en) | 2020-07-20 | 2020-07-20 | Anti-loosening and anti-pulling wood screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717570U (en) |
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2020
- 2020-07-20 CN CN202021433851.2U patent/CN212717570U/en active Active
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