CN221033536U - Quick installation fastener - Google Patents
Quick installation fastener Download PDFInfo
- Publication number
- CN221033536U CN221033536U CN202323207540.0U CN202323207540U CN221033536U CN 221033536 U CN221033536 U CN 221033536U CN 202323207540 U CN202323207540 U CN 202323207540U CN 221033536 U CN221033536 U CN 221033536U
- Authority
- CN
- China
- Prior art keywords
- thread
- self
- screw thread
- screw
- tapping
- 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
- 238000009434 installation Methods 0.000 title description 5
- 238000010079 rubber tapping Methods 0.000 claims abstract description 23
- 239000004568 cement Substances 0.000 abstract description 17
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Dowels (AREA)
Abstract
The utility model discloses a quick-mounting fastener which comprises a head part and a rod part, wherein a first thread and a second thread are arranged on the rod part, the first thread and the second thread are distributed in a staggered mode, the outer diameter of the first thread is larger than that of the second thread, the end part of the rod part is conical, a self-tapping groove is formed in the conical end part, a cross groove and a gasket are formed in the head part, the first thread is positioned at one side of the self-tapping groove at the starting end of the end part of the rod part, and the screw fastener can be quickly made to attack into a cement product through the self-tapping groove and the first thread, so that the connection efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of fasteners, and particularly relates to a quick-mounting fastener.
Background
In the connection and installation of cement building products such as fiber cement boards and bubble cement bricks, self-tapping screws are generally used, but due to the characteristic of hardness of cement products, the single-threaded cement self-tapping screws are also generally required to drill holes on the surface of the products, so that the connection efficiency is low.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a screw fastener capable of being quickly installed, and the self-tapping groove and the first thread of the rod part of the screw fastener can be quickly used for enabling the screw fastener to be tapped into a cement product, so that the connection efficiency is improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick installation fastener, includes head and pole portion, be provided with first screw thread and second screw thread on the pole portion, and first screw thread and second screw thread are crisscross to be distributed, the screw thread external diameter of first screw thread is greater than the screw thread external diameter of second screw thread, the tip of pole portion is coniform, is provided with the self-tapping groove on the tip of coniform, be provided with cross groove and gasket on the head, the starting end of the tip of first screw thread at the pole portion is located one side of self-tapping groove.
Further, the thread angle of the first thread is 45 degrees, and the thread angle of the second thread is 60 degrees.
Further, the thread spacing of the first thread and the second thread is 3.5-5.5mm, and increases with the increase of the outer diameter of the first thread.
Further, the thread height of the first thread is 0.1-0.5mm, and the thread height of the second thread is less than one half of the thread height of the first thread.
Further, the conical end angle of the stem is 30 ° -40 °.
Further, the side surface of the conical end part of the rod part is arc-shaped.
Compared with the prior art, the utility model has the beneficial effects that: when the self-tapping screw is used on the cement product, the tip of the rod part is firstly contacted with the surface of the cement product, the tip is favorable for positioning during tapping, a driving component (an electric screwdriver) is connected through a cross groove on the head part, the screw is pressurized while being rotated, a hole can be automatically drilled on the surface of the cement product through the self-tapping groove at the end part of the rod part, when the initial end of the first thread is contacted with the inner wall of the drilled hole, self-tapping connection can be started, during self-tapping, the screw can be quickly drilled into the cement product when the first thread is used, and corresponding smaller internal threads are extruded on the inner wall of the hole tapped by the first thread through the second thread, so that the connection strength of the screw in the cement product is increased.
Drawings
FIG. 1 is a schematic view of the quick install fastener of the present utility model;
Fig. 2 is a schematic diagram of the structure in the direction B in fig. 1.
Reference numerals: a head 1; a rod part 2; a first thread 3; a second thread 4; a self-tapping groove 5; a spacer 6.
Detailed Description
In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.
The utility model is further described with reference to fig. 1 and 2.
The utility model provides a quick installation fastener, includes head 1 and pole portion 2, be provided with first screw thread 3 and second screw thread 4 on the pole portion 2, and first screw thread 3 and the crisscross distribution of second screw thread 4, the screw thread external diameter of first screw thread 3 is greater than the screw thread external diameter of second screw thread 4, the tip of pole portion 2 is coniform, is provided with self tapping groove 5 on the tip of coniform, be provided with cross groove and gasket 6 on the head 1, the starting end of the tip of first screw thread 3 at pole portion 2 is located one side of self tapping groove 5.
In this embodiment, preferably, the thread angle of the first thread 3 is 45 °, and the thread angle of the second thread 4 is 60 °.
In this embodiment, preferably, the thread pitch of the first thread 3 and the second thread 4 is 3.5-5.5mm, and increases with the increase of the outer diameter of the first thread 3.
In this embodiment, preferably, the thread height of the first thread 3 is 0.1-0.5mm, and the thread height of the second thread 4 is less than one half of the thread height of the first thread 3.
Preferably, in this embodiment, the conical end angle of the shaft 2 is 30 ° -40 °.
As shown in fig. 1, in this embodiment, the side surface of the conical end portion of the shaft portion 2 is preferably arc-shaped.
As shown in fig. 1 and 2, when a self-tapping screw is used on a cement product, the tip of the rod part 2 firstly contacts the surface of the cement product, the tip is favorable for positioning during tapping, a driving component (an electric screwdriver) is connected through a cross groove on the head part 1, the screw is pressurized while being rotated, a hole can be automatically drilled on the surface of the cement product through a self-tapping groove 5 at the end part of the rod part 2, when the starting end of the first thread 3 contacts with the inner wall of the drilled hole, self-tapping connection can be started, during self-tapping, the screw can be quickly drilled into the cement product when the first thread 3 is used, and then a corresponding smaller internal thread is extruded on the inner wall of the hole tapped by the first thread 3 through the second thread 4, so that the connection strength of the screw in the cement product is increased.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (6)
1. A quick install fastener, characterized by: including head and pole portion, be provided with first screw thread and second screw thread on the pole portion, and first screw thread and second screw thread are crisscross to be distributed, the screw thread external diameter of first screw thread is greater than the screw thread external diameter of second screw thread, the tip of pole portion is coniform, is provided with self-tapping groove on the tip of coniform, be provided with cross groove and gasket on the head, the starting end of the tip of first screw thread at the pole portion is located one side of self-tapping groove.
2. The quick install fastener as claimed in claim 1 wherein: the thread angle of the first thread is 45 degrees, and the thread angle of the second thread is 60 degrees.
3. The quick install fastener as claimed in claim 2 wherein: the thread spacing of the first thread and the second thread is 3.5-5.5mm, and increases with the increase of the outer diameter of the first thread.
4. A quick install fastener as claimed in claim 3 wherein: the thread height of the first thread is 0.1-0.5mm, and the thread height of the second thread is less than one half of the thread height of the first thread.
5. The quick install fastener as claimed in claim 4, wherein: the conical end angle of the rod part is 30-40 degrees.
6. The quick install fastener as claimed in claim 5, wherein: the side surface of the conical end part of the rod part is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323207540.0U CN221033536U (en) | 2023-11-24 | 2023-11-24 | Quick installation fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323207540.0U CN221033536U (en) | 2023-11-24 | 2023-11-24 | Quick installation fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221033536U true CN221033536U (en) | 2024-05-28 |
Family
ID=91136702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323207540.0U Active CN221033536U (en) | 2023-11-24 | 2023-11-24 | Quick installation fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221033536U (en) |
-
2023
- 2023-11-24 CN CN202323207540.0U patent/CN221033536U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |