CN208024689U - A kind of ultraprecise cross tack self tapping pointed tail screw - Google Patents
A kind of ultraprecise cross tack self tapping pointed tail screw Download PDFInfo
- Publication number
- CN208024689U CN208024689U CN201820062461.5U CN201820062461U CN208024689U CN 208024689 U CN208024689 U CN 208024689U CN 201820062461 U CN201820062461 U CN 201820062461U CN 208024689 U CN208024689 U CN 208024689U
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- China
- Prior art keywords
- rod piece
- thread
- screw head
- bore portion
- screw
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- Expired - Fee Related
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
A kind of ultraprecise cross tack self tapping pointed tail screw of the utility model, including rod piece, described rod piece one end is provided with screw head, the rod piece outer surface is provided with thread, the one end of the rod piece far from screw head is provided with bore portion, the screw head both sides are respectively arranged with bottom surface, top surface and side, the top surface centre position offers cross recess, the cross recess intracavity bottom offers cone tank, the bottom surface centre position is fixedly connected with rod piece, the thread extends to bore portion from rod piece close to one end outer surface of bottom surface, the rod piece, screw head, thread and bore portion material are iron and carry out hardening heat processing, the rod piece, screw head, thread and bore portion outer surface are surface-treated by black zinc, this practicality is related to screw technical field.The device material hardness gets a promotion, and reinforces its case hardness, makes it that can play the role of fastening support ultra-fine, and ensures that it will not easily corrode, and ensures service life and equipment safety.
Description
Technical field
This practicality is related to screw technical field, specially a kind of ultraprecise cross tack self tapping pointed tail screw.
Background technology
Screw is fastened by easy stages using the physics and mathematical principle of the inclined-plane circular rotating and frictional force of object
The tool of implements parts.Screw is the general saying of fastener, daily pet phrase.Screw is work indispensable in daily life
Industry necessity：The minimum screw that such as camera, glasses, clock and watch, electronics use；TV, electric product, musical instrument, furniture etc.
General screw；Large-scale screw, nut are then used as engineering, building, bridge；Traffic tool, aircraft, electric car, automobile etc. are then
It is used in combination for big primary screw.Screw industrially bears vital task, as long as there is industry on the earth, then the function of screw is eternal
It is important.Screw is the joint invention in people's production and living over the past thousands of years, and from the point of view of application field, it is the first big of the mankind
Invention.Existing screw mostly possesses certain specification, cannot be satisfied all devices, not to be off size be exactly thread without
Method matches, and existing small clearance display screen needs the screw of super fine precision to be fastened, if but existing screw too it is thin its
Endurance is insufficient, otherwise is to easily corrode very much, and service life is of short duration.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, this practicality provides a kind of ultraprecise cross tack self tapping pointed tail screw, solves
Existing screw mostly possesses certain specification, cannot be satisfied all devices, not to be off size be exactly thread can not
Match, existing small clearance display screen needs the screw of super fine precision to be fastened, if but existing screw too thin its bear
Power is insufficient, otherwise is to easily corrode very much, the of short duration problem of service life.
(2) technical solution
In order to achieve the above object, this practicality is achieved by the following technical programs：A kind of ultraprecise cross tack self tapping
Pointed tail screw, including rod piece, it is characterised in that：Described rod piece one end is provided with screw head, and the rod piece outer surface is provided with thread,
The one end of the rod piece far from screw head is provided with bore portion；
The screw head both sides are respectively arranged with bottom surface, top surface and side, and the top surface centre position offers cross recess, institute
It states cross recess intracavity bottom and offers cone tank, the bottom surface centre position is fixedly connected with rod piece.
Preferably, the bottom surface and top surface are disposed as plane, and the side is set as arc surface.
Preferably, the cross recess inner surface is disposed as inclined-plane, and the cross recess, which contacts with each other, to be a little set as circular arc and fall
Angle.
Preferably, the thread is provided with thread angle, and the bore portion is set as cone.
Preferably, the thread extends to bore portion from rod piece close to outer surface one end of bottom surface.
Preferably, the rod piece, screw head, thread and bore portion material are iron and carry out hardening heat processing, the rod piece,
Screw head, thread and bore portion outer surface are surface-treated by black zinc.
(3) advantageous effect
This practicality provides a kind of ultraprecise cross tack self tapping pointed tail screw, has following advantageous effect：
Rod piece one end is provided with screw head, rod piece outer surface is provided with thread, and the one end of rod piece far from screw head is provided with
Bore portion, screw head both sides are respectively arranged with bottom surface, top surface and side, and top surface centre position offers cross recess, cross recess inner cavity
Bottom offers cone tank, and bottom surface centre position is fixedly connected with rod piece, and rod piece, screw head, thread and bore portion material are iron
And hardening heat processing is carried out, rod piece, screw head, thread and bore portion outer surface are surface-treated by black zinc so that the dress
It sets material hardness largely to be promoted, and strengthens its case hardness, make it that can play fastening support ultra-fine
Effect, and ensure that it will not easily corrode, ensure service life and equipment safety.
Description of the drawings
Fig. 1 is the utility model ultraprecise cross tack self tapping pointed tail screw overall structure diagram；
Fig. 2 is the utility model screw head top surface structure schematic diagram.
In figure：1 rod piece, 2 screw heads, 21 bottom surfaces, 22 top surfaces, 23 sides, 3 threads, 4 bore portions, 5 cross recesses, 6 cone tanks.
Specific implementation mode
Below in conjunction with the attached drawing in this practical embodiment, the technical solution in this practical embodiment is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only this practicality a part of the embodiment, instead of all the embodiments.It is based on
Embodiment in this practicality, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of this practicality protection.
- 2 are please referred to Fig.1, this practicality provides a kind of technical solution：A kind of ultraprecise cross tack self tapping pointed tail screw, packet
Include rod piece 1, it is characterised in that：1 one end of the rod piece is provided with screw head 2, and 1 outer surface of the rod piece is provided with thread 3, the bar
The one end of part 1 far from screw head 2 is provided with bore portion 4, and the thread 3 is provided with thread angle, and the bore portion 4 is set as circular cone
Shape, the thread 3 extend to bore portion 4 from rod piece 1 close to outer surface one end of bottom surface 21；
2 both sides of the screw head are respectively arranged with bottom surface 21, top surface 22 and side 23, and the bottom surface 21 and top surface 22 are respectively provided with
For plane, the side 23 is set as arc surface.22 centre position of the top surface offers cross recess 5, table in the cross recess 5
Face is disposed as inclined-plane, and the cross recess 5, which contacts with each other, is a little set as circular arc chamfering.5 intracavity bottom of the cross recess offers
Cone tank 6,21 centre position of the bottom surface are fixedly connected with rod piece 1.The rod piece 1,4 material of screw head 2, thread 3 and bore portion
It is iron and carries out hardening heat processing, the rod piece 1, screw head 2, thread 3 and 4 outer surface of bore portion carries out table by black zinc
Surface treatment.So that the device material hardness is largely promoted, and its case hardness is strengthened, makes it can ultra-fine
Play the role of fastening support, and ensure that it will not easily corrode, ensures service life and equipment safety.
In use, making it be agreed with cross recess 5 and cone tank 6 by Phillips screwdriver, by bore portion 4 and installation part
It is contacted, passes through rotation so that bore portion 4 enters installation part, and by thread 3 so that scrap excludes, and so that rod piece 1 is deep
Enter, until screw head 2 is contacted with installation part.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " an including element limited, it is not excluded that including
There is also other identical elements in the process, method, article or equipment of element ".
While there has been shown and described that the embodiment of this practicality for the ordinary skill in the art can be with
These embodiments can be carried out a variety of variations in the case where not departing from the principle and spirit of this practicality, modification, replace by understanding
And modification, the range of this practicality are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of ultraprecise cross tack self tapping pointed tail screw, including rod piece (1), it is characterised in that：Described rod piece (1) one end is set
It is equipped with screw head (2), rod piece (1) outer surface is provided with thread (3), and the one end of the rod piece (1) far from screw head (2) is provided with
Bore portion (4)；
Screw head (2) both sides are respectively arranged with bottom surface (21), top surface (22) and side (23), top surface (22) centre position
Cross recess (5) is offered, cross recess (5) intracavity bottom offers cone tank (6), bottom surface (21) centre position and bar
Part (1) is fixedly connected.
2. a kind of ultraprecise cross tack self tapping pointed tail screw according to claim 1, it is characterised in that：The bottom surface
(21) and top surface (22) are disposed as plane, and the side (23) is set as arc surface.
3. a kind of ultraprecise cross tack self tapping pointed tail screw according to claim 1, it is characterised in that：The cross recess
(5) inner surface is disposed as inclined-plane, and the cross recess (5), which contacts with each other, is a little set as circular arc chamfering.
4. a kind of ultraprecise cross tack self tapping pointed tail screw according to claim 1, it is characterised in that：The thread
(3) it is provided with thread angle, the bore portion (4) is set as cone.
5. a kind of ultraprecise cross tack self tapping pointed tail screw according to claim 1, it is characterised in that：The thread
(3) bore portion (4) is extended to from rod piece (1) close to outer surface one end of bottom surface (21).
6. a kind of ultraprecise cross tack self tapping pointed tail screw according to claim 1, it is characterised in that：The rod piece
(1), screw head (2), thread (3) and bore portion (4) material are iron and carry out hardening heat processing, the rod piece (1), screw head (2),
Thread (3) and bore portion (4) outer surface are surface-treated by black zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820062461.5U CN208024689U (en) | 2018-01-15 | 2018-01-15 | A kind of ultraprecise cross tack self tapping pointed tail screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820062461.5U CN208024689U (en) | 2018-01-15 | 2018-01-15 | A kind of ultraprecise cross tack self tapping pointed tail screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024689U true CN208024689U (en) | 2018-10-30 |
Family
ID=63902310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820062461.5U Expired - Fee Related CN208024689U (en) | 2018-01-15 | 2018-01-15 | A kind of ultraprecise cross tack self tapping pointed tail screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208024689U (en) |
-
2018
- 2018-01-15 CN CN201820062461.5U patent/CN208024689U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20200115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |