CN217401415U - Special anti-loosening screw with anti-skid teeth and external spline teeth - Google Patents
Special anti-loosening screw with anti-skid teeth and external spline teeth Download PDFInfo
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- CN217401415U CN217401415U CN202123289397.5U CN202123289397U CN217401415U CN 217401415 U CN217401415 U CN 217401415U CN 202123289397 U CN202123289397 U CN 202123289397U CN 217401415 U CN217401415 U CN 217401415U
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Abstract
The utility model discloses a special anti-loosening screw with anti-skidding teeth and external teeth, which consists of a threaded rod, a head and the external teeth and is characterized in that the threaded rod and the head form a screw body in an integrated forming mode, wherein the threaded rod is a half-thread stud, the thread of the threaded rod is left with a gap between the end of the threaded rod and the head, and the external teeth are arranged at the thread gap between the threaded rod and the head; wherein the upper surface of the head part is formed with a cross groove, and the bottom surface is pressed and formed with eighteen equally divided embossing tooth sockets; the diameter of the head part is 8.9 mm-9.4 mm, and the height is 2.65 mm-2.95 mm; the length of the threaded rod before the outer thread is formed is 7.7 mm-7.8 m, and the diameter of the threaded rod is 3.45 mm-3.47 mm; the diameter of the inner hole of the outer spline tooth is 3.5 mm-3.6 mm, the overall diameter is 7.5 mm-8 mm, and the tooth thickness is 0.45 mm.
Description
Technical Field
The utility model relates to a take special check screw of antiskid tooth and outer flower tooth specifically is applied to combination locking machine tooth screw on the air conditioner outer container.
Background
The existing common machine-thread combined screw with the external spline teeth is insufficient in anti-loosening performance, and the external spline teeth and the head joint part are insufficient in engaging force under the action of external force after assembly and easy to loosen, so that the whole mounted product is not stable enough.
Disclosure of Invention
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a special anti-loosening screw with anti-skidding teeth and external spline teeth is composed of a threaded rod, a head and the external spline teeth, and is characterized in that the threaded rod and the head form a screw body in an integrated forming mode, wherein the threaded rod is specifically a half-thread stud, a gap is reserved between the tail end of the threaded rod and the head of the threaded rod through threads of the threaded rod, and the external spline teeth are arranged at the thread gap between the threaded rod and the head; wherein the upper surface of the head part is formed with a cross groove, and the bottom surface is pressed and formed with eighteen equally divided embossing tooth sockets; the diameter of the head part is 8.9 mm-9.4 mm, and the height of the head part is 2.65 mm-2.95 mm; the length of the threaded rod before the external thread is formed is 7.7 mm-7.8 m, and the diameter is 3.45 mm-3.47 mm; the diameter of the inner hole of the outer spline tooth is 3.5 mm-3.6 mm, the overall diameter is 7.5 mm-8 mm, and the tooth thickness is 0.45 mm.
Preferably, the diameter of the threaded rod is 3.85 mm-3.95 mm after the external thread is formed.
Preferably, the end of the threaded rod is rounded, and the round corner diameter is 2.2 mm.
Preferably, the screw body and the external spline teeth are both subjected to electroplating treatment.
Preferably, the external diameter of the thread of the threaded rod after the external thread is formed is larger than the diameter of the inner hole of the external spline.
The utility model has the advantages that: the utility model discloses a two combination changes of ordinary outband flower tooth are the outer flower tooth of screw head area sun antiskid tooth (knurling tooth's socket promptly) and combination, and such design can ensure after the installation, even receive the exogenic action, and the screw head is from the sun antiskid tooth of taking and the outer friction between the tooth also accessible of flower tooth realize mutual interlock, and then let and used the utility model discloses the product that installs does not take place the displacement problem, plays locking effect to solve the screw and produce not hard up condition and problem in the vibration.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a schematic structural view of the screw body of the present invention before thread rolling;
fig. 3 is a schematic structural view of the screw body of the present invention being an embossed tooth groove;
fig. 4 is a schematic structural view of the outer spline of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement objectives and the functions of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 4, the present embodiment adopts the following technical scheme that a special anti-loosening screw with anti-slip teeth and external spline teeth is composed of a threaded rod, a head and external spline teeth, and is characterized in that the threaded rod and the head form a screw body in an integrated molding manner, wherein the threaded rod is specifically a half-thread stud, a gap is left between the end of the threaded rod and the head by the thread of the threaded rod, and the external spline teeth are arranged at the thread gap between the threaded rod and the head; wherein the upper surface of the head part is formed with a cross groove, and the bottom surface is pressed and formed with eighteen equally divided embossing tooth sockets; the diameter of the head part is 8.9 mm-9.4 mm, and the height of the head part is 2.65 mm-2.95 mm; the length of the threaded rod before the external thread is formed is 7.7 mm-7.8 m, and the diameter is 3.45 mm-3.47 mm; the diameter of the inner hole of the external spline tooth is 3.5 mm-3.6 mm, the overall diameter is 7.5 mm-8 mm, and the tooth thickness is 0.45 mm.
Wherein, the diameter of the threaded rod is required to be 3.85 mm-3.95 mm after the external thread is formed.
Wherein, the end of the threaded rod needs to be rounded, and the fillet diameter is 2.2 mm.
Wherein, the screw body and the outer flower teeth both need to be electroplated.
And after the external thread is formed by the threaded rod, the external diameter of the thread needs to be larger than the diameter of the inner hole of the external spline.
The present embodiment takes the above scheme as an example.
The utility model discloses a two combination changes of ordinary outband flower tooth are the outer flower tooth of screw head area sun antiskid tooth (knurling tooth's socket promptly) and combination, and such design can ensure after the installation, even receive the exogenic action, and the screw head is from the sun antiskid tooth of taking and the outer friction between the tooth also accessible of flower tooth realize mutual interlock, and then let and used the utility model discloses the product that installs does not take place the displacement problem, plays locking effect to solve the screw and produce not hard up condition and problem in the vibration.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A special anti-loosening screw with anti-skidding teeth and external spline teeth is composed of a threaded rod (1), a head (2) and external spline teeth (3) and is characterized in that the threaded rod (1) and the head (2) form a screw body in an integrated forming mode, wherein the threaded rod (1) is a half-thread stud, the thread of the threaded rod is left in a gap between the tail end of the threaded rod (1) and the head (2), and the external spline teeth (3) are arranged in the gap between the threaded rod (1) and the head (2); wherein the upper surface of the head part (2) is formed with a cross groove, and the bottom surface is formed with eighteen equal embossing tooth sockets by pressing; the diameter of the head part (2) is 8.9 mm-9.4 mm, and the height is 2.65 mm-2.95 mm; the length of the threaded rod (1) before the external thread is formed is 7.7 mm-7.8 m, and the diameter is 3.45 mm-3.47 mm; the diameter of an inner hole of the external flower tooth (3) is 3.5 mm-3.6 mm, the overall diameter is 7.5 mm-8 mm, and the tooth thickness is 0.45 mm.
2. The special anti-loosening screw with anti-slip teeth and external teeth as claimed in claim 1, wherein the diameter of the threaded rod (1) is 3.85mm to 3.95mm after the external thread is formed.
3. The special anti-loosening screw with anti-slip teeth and external spline teeth as claimed in claim 1, is characterized in that the end of the threaded rod (1) is rounded, and the diameter of the rounded corner is 2.2 mm.
4. The special anti-loosening screw with anti-slip teeth and external spline teeth as claimed in claim 1, wherein the screw body and the external spline teeth (3) are both subjected to electroplating.
5. The special anti-loosening screw with anti-slip teeth and external spline teeth as claimed in claim 1, wherein the external diameter of the thread of the threaded rod (1) after the external spline thread is formed is larger than the diameter of the inner hole of the external spline tooth (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123289397.5U CN217401415U (en) | 2021-12-25 | 2021-12-25 | Special anti-loosening screw with anti-skid teeth and external spline teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123289397.5U CN217401415U (en) | 2021-12-25 | 2021-12-25 | Special anti-loosening screw with anti-skid teeth and external spline teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401415U true CN217401415U (en) | 2022-09-09 |
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ID=83134698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123289397.5U Active CN217401415U (en) | 2021-12-25 | 2021-12-25 | Special anti-loosening screw with anti-skid teeth and external spline teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401415U (en) |
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2021
- 2021-12-25 CN CN202123289397.5U patent/CN217401415U/en active Active
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