CN204253547U - A kind of titanium alloy cross recess countersunk screw - Google Patents

A kind of titanium alloy cross recess countersunk screw Download PDF

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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
titanium alloy
screw
screw rod
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
Application number
CN201420718379.5U
Other languages
Chinese (zh)
Inventor
陈伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WENZHOU KETENG FASTENER Co Ltd
Original Assignee
WENZHOU KETENG FASTENER Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WENZHOU KETENG FASTENER Co Ltd filed Critical WENZHOU KETENG FASTENER Co Ltd
Priority to CN201420718379.5U priority Critical patent/CN204253547U/en
Application granted granted Critical
Publication of CN204253547U publication Critical patent/CN204253547U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of titanium alloy cross recess countersunk screw
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.
CN201420718379.5U 2014-11-26 2014-11-26 A kind of titanium alloy cross recess countersunk screw Expired - Fee Related CN204253547U (en)

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)

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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