CN207240053U - A kind of screw knife assembly for being applied to difficult the turn of the screw - Google Patents
A kind of screw knife assembly for being applied to difficult the turn of the screw Download PDFInfo
- Publication number
- CN207240053U CN207240053U CN201721294336.9U CN201721294336U CN207240053U CN 207240053 U CN207240053 U CN 207240053U CN 201721294336 U CN201721294336 U CN 201721294336U CN 207240053 U CN207240053 U CN 207240053U
- Authority
- CN
- China
- Prior art keywords
- screw
- raised teeth
- force sleeve
- turn
- difficult
- 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.)
- Withdrawn - After Issue
Links
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
Abstract
The utility model discloses a kind of screw knife assembly for being applied to difficult the turn of the screw, belong to driver technology field, including interior changeover mechanism, outer force sleeve mechanism, the interior changeover mechanism includes spacing top plate, drive shaft, rotating base, screwdriver socket pipe, the lower end of the drive shaft is connected to the center of the rotating base top surface, the first raised teeth are equipped with the top edge of the rotating base, the bottom centre position of the rotating base is equipped with the screwdriver socket pipe, the outer force sleeve mechanism includes force sleeve body and the second raised teeth, the described second raised teeth are equipped with the bottom margin of the force sleeve body, described first raised teeth and the second raised teeth intermeshing.The position that the screwdriver that the utility model solves the prior art can cause screw to be combined with screwdriver for the difficult screw twisted or got rusty is damaged, and easily dislocation is slided, the technical problem for causing screw or bolt to twist not open.
Description
Technical field
The utility model belongs to driver technology field, and in particular to a kind of screw knife assembly for being applied to difficult the turn of the screw.
Background technology
Screwdriver is exactly usually to have a thin sphenocephaly to force its instrument in place for twisting screw, can be inserted into
In the line of rabbet joint or recess of screw cap, mainly there is two kinds of a word and cross, common also have hexagonal screwdriver, including interior hexagonal and
Two kinds of outer-hexagonal.Screwdriver is not allowed generally yielding and fractures in use, workable, for pinning the handle of cutter head
Mouth employs the design on interior six sides, effectively prevents the debentition and slip of instrument in use, and all cutter heads are all magnetic,
In addition to it firmly can hold handle, moreover it is possible to effectively draw screw, carry easy to use.But the screwdriver pair of the prior art
It is damaged in the position that the difficult screw twisted or got rusty can cause screw to be combined with screwdriver, and easily dislocation is slided, and causes spiral shell
Silk or bolt are twisted not open.
The content of the invention
（1）Technical solution
In order to overcome the shortage of prior art, the utility model provides a kind of screw knife assembly for being applied to difficult the turn of the screw, bag
Interior changeover mechanism, outer force sleeve mechanism are included, the interior changeover mechanism includes spacing top plate, drive shaft, rotating base, screw
Broach shell is taken over, and the upper end of the drive shaft is connected to the center on the spacing top tray bottom surface, the drive shaft
Lower end be connected to the center of the rotating base top surface, it is convex to be equipped with first at the top edge of the rotating base
Teeth are played, the bottom centre position of the rotating base is equipped with the screwdriver socket pipe, and the outer force sleeve mechanism includes
The sleeve body that exerts a force and the second raised teeth, are equipped with the described second raised teeth at the bottom margin of the force sleeve body,
The first protrusion teeth and the second raised teeth are intermeshed, inside the upper end of the force sleeve body described in setting
The spacing cavity of spacing top plate, the bottom centre position of the spacing cavity is equipped with the connection duct of the drive shaft, described
Connection duct extends to the bottom of the force sleeve body.
Further, 3 ~ 10 the described first raised teeth, the force are equipped with the top edge of the rotating base
3 ~ 10 the described second raised teeth, the described first raised teeth and second protrusion are equipped with the bottom margin of sleeve body
The quantity of teeth is identical, the vertical section shape in a rectangular trapezoid of the described first raised teeth and the second raised teeth, it is preferable that
3 or 4 first raised teeth are equipped with the top edge of the rotating base, at the bottom margin of the force sleeve body
Equipped with 3 or 4 the described second raised teeth.
Further, the inside cross-section of the screwdriver socket pipe is in pentagon either hexagon or triangle.
Further, the spacing cavity and force sleeve body are cylindrical.
Further, the top for the sleeve body that exerts a force is equipped with antiskid thread.
Further, the thickness of the spacing top plate is not less than 0.5cm, preferably 0.6cm.
（2）Beneficial effect
The beneficial effects of the utility model：Compared with the prior art, the first of the utility model the raised teeth and second convex
Play teeth to be intermeshed, the spacing cavity of the spacing top plate of setting inside the upper end for the sleeve body that exerts a force, in the bottom of spacing cavity
Heart position is equipped with the connection duct of drive shaft, as long as stuck or screwdriver is withstood spiral shell when get rusty when running into screw terminal
Silk, force sleeve body reach outermost end, and handle, the raised tooth between interior changeover mechanism and force sleeve body are tapped with weight
Relative displacement will occur for tooth, make internal thread knife produce to the power rotated counterclockwise, solve the screwdriver of the prior art for
The position that the difficult screw twisted or got rusty can cause screw to be combined with screwdriver is damaged, and easily dislocation is slided, and causes screw
Or the technical problem that bolt is twisted not open.
Brief description of the drawings
Fig. 1 is the structure diagram of interior changeover mechanism；
Fig. 2 is the schematic top plan view of interior changeover mechanism；
Fig. 3 is the elevational schematic view of interior changeover mechanism；
Fig. 4 is the structure diagram of outer force sleeve mechanism；
Fig. 5 is the elevational schematic view of outer force sleeve mechanism；
Fig. 6 is the assembling schematic diagram for the screw knife assembly for being applied to difficult the turn of the screw.
Embodiment
The utility model is further described with reference to embodiment.
Embodiment one
As shown in Fig. 1 ~ 6, the implementation case provides a kind of screw knife assembly for being applied to difficult the turn of the screw, including interior switching machine
Structure 1, outer force sleeve mechanism 2, the interior changeover mechanism 1 include spacing top plate 11, drive shaft 12, rotating base 13, screw
Broach shell adapter 14, the upper end of the drive shaft 12 are connected to the center of 11 lower surface of spacing top plate, the biography
The lower end of turn axis 12 is connected to the center of 13 top surface of rotating base, the top edge of the rotating base 13
Place is equipped with the first raised teeth 15, and the bottom centre position of the rotating base 13 is equipped with the screwdriver socket pipe 14, described
Outer force sleeve mechanism 2 includes 21 and second raised teeth 22 of force sleeve body, the bottom sides of the force sleeve body 21
The described second raised teeth 22 are equipped with edge, the described first raised teeth 15 and the second raised teeth 22 are intermeshed, institute
State the spacing cavity 24 that the spacing top plate 11 is set inside the upper end of force sleeve body 21, the bottom of the spacing cavity 24
Center is equipped with the connection duct 23 of the drive shaft 12, and the connection duct 23 extends to the force sleeve body 21
Bottom.
3 the described first raised teeth 15, the force sleeve body are equipped with the top edge of the rotating base 13
3 the described second raised teeth 22, the described first raised teeth 15 and the second raised teeth are equipped with 21 bottom margin
22 quantity is identical, the vertical section shape in a rectangular trapezoid of the described first raised teeth 15 and the second raised teeth 22.It is described
The inside cross-section of screwdriver socket pipe 14 is in pentagon either hexagon or triangle, the spacing cavity 24 and force set
Cylinder main body 21 is cylindrical, and the top of force sleeve body 21 is equipped with antiskid thread, and the thickness of the spacing top plate 11 is
0.6cm。
Specifically, interior changeover mechanism 1 is set to outer 2 the inside of force sleeve mechanism, exerted a force outside when normally tightening screw
The raised teeth of 2 lower end of sleeve mechanism block the raised teeth of interior 1 upper end of changeover mechanism, outer force set when normally loosening the screw a little
Cylinder mechanism 2 shrinks back, and the power of outer force sleeve mechanism 2 normally can just turn on screw for delivery to interior changeover mechanism 1.
As long as stuck or the screwdriver of switching is withstood screw when get rusty when running into screw terminal, outer force sleeve mechanism 2 reaches
Outermost end, taps handle, the raised teeth between interior changeover mechanism 1 and outer force sleeve mechanism 2 will occur relatively with weight
Displacement, makes interior changeover mechanism 1 produce to the power rotated counterclockwise, drives screw toward outward turning.
Embodiment described above only expresses the preferred embodiment of the utility model, its description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, some deformations can also be made, improves and substitutes, this
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should using appended claims as
It is accurate.
Claims (7)
1. a kind of screw knife assembly for being applied to difficult the turn of the screw, it is characterised in that including interior changeover mechanism（1）, outer force sleeve
Mechanism（2）, the interior changeover mechanism（1）Including spacing top plate（11）, drive shaft（12）, rotating base（13）, screw broach shell
Adapter（14）, the drive shaft（12）Upper end be connected to the spacing top plate（11）The center of lower surface, it is described
Drive shaft（12）Lower end be connected to the rotating base（13）The center of top surface, the rotating base（13）'s
The first raised teeth are equipped with top edge（15）, the rotating base（13）Bottom centre position be equipped with the screw broach shell
Adapter（14）, the outer force sleeve mechanism（2）Including the sleeve body that exerts a force（21）With the second raised teeth（22）, the force
Sleeve body（21）Bottom margin at be equipped with the described second raised teeth（22）, the described first raised teeth（15）With described
Two raised teeth（22）Intermeshing, the force sleeve body（21）Upper end inside the spacing top plate is set（11）Limit
Position cavity（24）, the spacing cavity（24）Bottom centre position be equipped with the drive shaft（12）Connection duct（23）,
The connection duct（23）Extend to the force sleeve body（21）Bottom.
A kind of 2. screw knife assembly for being applied to difficult the turn of the screw according to claim 1, it is characterised in that：The rotation bottom
Seat（13）Top edge at be equipped with 3 ~ 10 first raised teeth（15）, the force sleeve body（21）Bottom sides
3 ~ 10 the described second raised teeth are equipped with edge（22）, the described first raised teeth（15）With the described second raised teeth（22）
Quantity it is identical, the first raised teeth（15）With the described second raised teeth（22）Vertical section shape in a rectangular trapezoid.
A kind of 3. screw knife assembly for being applied to difficult the turn of the screw according to claim 1 or 2, it is characterised in that：The rotation
Turn base（13）Top edge at be equipped with 3 first raised teeth（15）, the force sleeve body（21）Bottom margin
Place is equipped with 3 the described second raised teeth（22）.
A kind of 4. screw knife assembly for being applied to difficult the turn of the screw according to claim 1, it is characterised in that：The screwdriver
Socket pipe（14）Inside cross-section be in pentagon or hexagon.
A kind of 5. screw knife assembly for being applied to difficult the turn of the screw according to claim 1, it is characterised in that：The spacing sky
Chamber（24）With force sleeve body（21）For cylindrical.
A kind of 6. screw knife assembly for being applied to difficult the turn of the screw according to claim 1, it is characterised in that：Exert a force sleeve master
Body（21）Top be equipped with antiskid thread.
A kind of 7. screw knife assembly for being applied to difficult the turn of the screw according to claim 1, it is characterised in that：The spacing top
Disk（11）Thickness be not less than 0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294336.9U CN207240053U (en) | 2017-10-10 | 2017-10-10 | A kind of screw knife assembly for being applied to difficult the turn of the screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294336.9U CN207240053U (en) | 2017-10-10 | 2017-10-10 | A kind of screw knife assembly for being applied to difficult the turn of the screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207240053U true CN207240053U (en) | 2018-04-17 |
Family
ID=61890706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294336.9U Withdrawn - After Issue CN207240053U (en) | 2017-10-10 | 2017-10-10 | A kind of screw knife assembly for being applied to difficult the turn of the screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207240053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471143A (en) * | 2017-10-10 | 2017-12-15 | 福建省永正工程质量检测有限公司 | A kind of screw knife assembly applied to difficult the turn of the screw |
| CN107471143B (en) * | 2017-10-10 | 2024-04-19 | 福建省永正工程质量检测有限公司 | Be applied to screwdriver subassembly of difficult screw of twisting |
-
2017
- 2017-10-10 CN CN201721294336.9U patent/CN207240053U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471143A (en) * | 2017-10-10 | 2017-12-15 | 福建省永正工程质量检测有限公司 | A kind of screw knife assembly applied to difficult the turn of the screw |
| CN107471143B (en) * | 2017-10-10 | 2024-04-19 | 福建省永正工程质量检测有限公司 | Be applied to screwdriver subassembly of difficult screw of twisting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20240419 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20240419 |