CN204253547U - A kind of titanium alloy cross recess countersunk screw - Google Patents
A kind of titanium alloy cross recess countersunk screw Download PDFInfo
- Publication number
- CN204253547U CN204253547U CN201420718379.5U CN201420718379U CN204253547U CN 204253547 U CN204253547 U CN 204253547U CN 201420718379 U CN201420718379 U CN 201420718379U CN 204253547 U CN204253547 U CN 204253547U
- Authority
- CN
- China
- Prior art keywords
- spiral shell
- shell head
- screw rod
- titanium alloy
- cross recess
- 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.)
- Expired - Fee Related
Links
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- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of titanium alloy cross recess countersunk screw, the spiral shell head including screw rod and be connected with screw rod, described screw rod is provided with screw thread, it is characterized in that: the outer peripheral surface of described spiral shell head is provided with annular groove, be arranged with annular rubber ring in this annular groove, described annular rubber ring external frame dew is located at outside annular groove; The upper surface of described spiral shell head is provided with cross recess, and spiral shell head and screw rod are titanium alloy material makes.Good seal performance between countersunk screw of the present utility model and mounting hole, and countersunk screw intensity is high.
Description
Technical field
The utility model relates to a kind of improvement invention of fastening piece, particularly relates to a kind of improvement invention of titanium alloy cross recess countersunk screw.
Background technique
In known technical field, countersunk screw is the fastening piece between a kind of common component of machine, when mounted, the spiral shell head of countersunk screw sinks in mounting hole completely, flush with mounting surface, in the use of reality, the environment of mounting surface may be very moist, and often cannot close contact between the spiral shell head of countersunk screw and mounting hole, moist steam easily enters in the gap between countersunk screw and mounting hole, thus cause countersunk screw rust corrosion, and there is the dead phenomenon of rust, be unfavorable for the steadiness of the connection of component of machine.
Model utility content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, the titanium alloy cross recess countersunk screw providing a kind of good seal performance, workpiece strength high.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme to realize: this kind of titanium alloy cross recess countersunk screw, the spiral shell head including screw rod and be connected with screw rod, described screw rod is provided with screw thread, it is characterized in that: the outer peripheral surface of described spiral shell head is provided with annular groove, be arranged with annular rubber ring in this annular groove, described annular rubber ring external frame dew is located at outside annular groove; The upper surface of described spiral shell head is provided with cross recess, and spiral shell head and screw rod are titanium alloy material makes.
The beneficial effects of the utility model are the titanium alloy cross recess countersunk screws after improving, by arranging rubber ring on the spiral shell head outer peripheral surface of countersunk screw, improve the sealing between the spiral shell head of countersunk screw and mounting hole, avoid moist steam to enter in the gap between countersunk screw and mounting hole, thus cause countersunk screw rust corrosion; Countersunk screw adopts titanium alloy to make simultaneously, and intensity improves greatly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
Drawings illustrate structure of the present utility model, further illustrate its details by reference to the accompanying drawings more below.This titanium alloy cross recess countersunk screw, the spiral shell head 2 including screw rod 1 and be connected with screw rod 1, described screw rod 1 is provided with screw thread, the outer peripheral surface of described spiral shell head 2 is provided with annular groove, annular rubber ring 3 is arranged with in this annular groove, described annular rubber ring 3 external frame dew is located at outside annular groove, when making rubber ring 3 external frame and mounting hole contact internal walls, be in compressive state, tightr, sealing is stronger, moist steam is avoided to enter in the gap between countersunk screw and mounting hole, thus cause countersunk screw rust corrosion, and there is the phenomenon that rust is dead, be unfavorable for the steadiness of the connection of component of machine, the upper surface of described spiral shell head 2 is provided with cross recess, and spiral shell head 2 and screw rod 1 are titanium alloy material makes, and improves the intensity of countersunk screw.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. a titanium alloy cross recess countersunk screw, the spiral shell head including screw rod and be connected with screw rod, described screw rod is provided with screw thread, it is characterized in that: the outer peripheral surface of described spiral shell head is provided with annular groove, be arranged with annular rubber ring in this annular groove, described annular rubber ring external frame dew is located at outside annular groove; The upper surface of described spiral shell head is provided with cross recess, and spiral shell head and screw rod are titanium alloy material makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718379.5U CN204253547U (en) | 2014-11-26 | 2014-11-26 | A kind of titanium alloy cross recess countersunk screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718379.5U CN204253547U (en) | 2014-11-26 | 2014-11-26 | A kind of titanium alloy cross recess countersunk screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253547U true CN204253547U (en) | 2015-04-08 |
Family
ID=52957860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420718379.5U Expired - Fee Related CN204253547U (en) | 2014-11-26 | 2014-11-26 | A kind of titanium alloy cross recess countersunk screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253547U (en) |
-
2014
- 2014-11-26 CN CN201420718379.5U patent/CN204253547U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20201126 |