CN208913974U - A kind of impact resistance screwdriver bit - Google Patents
A kind of impact resistance screwdriver bit Download PDFInfo
- Publication number
- CN208913974U CN208913974U CN201821548096.5U CN201821548096U CN208913974U CN 208913974 U CN208913974 U CN 208913974U CN 201821548096 U CN201821548096 U CN 201821548096U CN 208913974 U CN208913974 U CN 208913974U
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- section
- screwdriver bit
- resistance section
- twisting
- resistance
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Abstract
Impact resistance screwdriver bit comprising twisting resistance section, two section of first shock resistance section, two sections of changeover portions and two section of second shock resistance section.When the axial length of the twisting resistance section is less than 2 centimetres, the contour line of the twisting resistance section is the first arc on the section along the central axis of the twisting resistance section.When the axial length of the twisting resistance section is greater than 2 centimetres, the contour line of the twisting resistance section includes the second arc that one section of straight line and two sections are separately positioned on the straight line both ends on the section along the central axis of the twisting resistance section.First arc is equal with the diameter of the second arc.The torsion that this impact resistance screwdriver bit is born, which is mainly concentrated, to be transmitted in the twisting resistance section; rather than it concentrates on screwdriver bit; and the torsion that the twisting resistance section is born is less than its yield limit; i.e. the torsion will not twist off the twisting resistance section; so as to protect the screwdriver bit not deform because of impact; even there is the phenomenon that gap, and then its service life can be improved.
Description
Technical field
The utility model belongs to technical field of tools, especially a kind of impact resistance screwdriver bit.
Background technique
In the prior art, it is all straight cylinder that the connection of common screwdriver bit, which is heard, i.e., in addition to screwdriver bit, other parts are straight along axial direction
Diameter is the same, and when in use, especially just starting, the impact force that screwdriver bit is born all is concentrated on screwdriver bit, thus
So that screwdriver bit is using just deforming several times, or even gap occurs, and it can not reuse, so that its service life is very short.
Utility model content
In view of this, the present invention provides a kind of impact resistance screwdriver bits that can greatly improve its service life, on solving
State problem.
Impact resistance screwdriver bit comprising one section of twisting resistance section, two sections of axial sides for being separately positioned on the twisting resistance section
First shock resistance section, the changeover portion of two sections of axial sides for being separately positioned on the first shock resistance section and two sections are set respectively
Set the second shock resistance section in the axial sides of the changeover portion.When the axial length of the twisting resistance section is less than 2 centimetres,
The contour line of the twisting resistance section is the first arc along the section of the central axis of the twisting resistance section.When the twisting resistance section
When axial length is greater than 2 centimetres, the contour line of the twisting resistance section includes on the section along the central axis of the twisting resistance section
One section of straight line and two sections are separately positioned on second arc at the straight line both ends.The diameter of first arc and the second arc
It is equal.The outer section of diameter of a circle in the section of the first shock resistance section is greater than the maximum gauge in the section of the twisting resistance section.?
The contour line of the changeover portion is third arc along the section of the central axis of the twisting resistance section.
Further, the impact resistance screwdriver bit further includes batch of two axial sides for being separately positioned on the shock resistance section
Head.
Further, the section of the outer section of diameter of a circle in the section of the first shock resistance section and the second shock resistance section
Outer section of diameter of a circle it is equal.
Further, the curvature of first, second, third arc is relative to the central axis of the impact resistance screwdriver bit
It is negative.
Further, the curvature of first, second arc is less than the curvature of the third arc.
Further, the axial length of the first shock resistance section is greater than the axial length of the second shock resistance section.
Further, the section minimum diameter of the twisting resistance section is less than the section minimum diameter of the changeover portion.
Further, the cross sectional shape of the first, second shock resistance section is regular hexagon.
Compared with prior art, impact resistance screwdriver bit provided by the utility model is provided with the twisting resistance section in the middle,
Different shapes is presented according to the size of size for it, i.e., when the axial length of the twisting resistance section is less than 2 centimetres, along described
The contour line of the twisting resistance section is the first arc on the section of the central axis of twisting resistance section, and works as the axial direction of the twisting resistance section
When length is greater than 2 centimetres, the contour line of the twisting resistance section includes one section on the section along the central axis of the twisting resistance section
Straight line and two sections are separately positioned on second arc at the straight line both ends.Such structure designs so that when in impact resistance screwdriver bit
In use, the torsion that the impact resistance screwdriver bit is born mainly is concentrated and is transmitted in the twisting resistance section, rather than concentrate on screwdriver bit,
And the torsion that the twisting resistance section is born is less than its yield limit, i.e. the torsion will not twist off the twisting resistance section, so as to protect
Protecting the screwdriver bit will not deform because of impact, or even the phenomenon that gap occurs, and then its service life can be improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the impact resistance screwdriver bit that the utility model first embodiment provides.
The impact resistance screwdriver bit that Fig. 2 is Fig. 1 is along its axial cross section structure schematic diagram.
Fig. 3 is the structural schematic diagram for the impact resistance screwdriver bit that the utility model second embodiment provides.
Fig. 4 is the impact resistance screwdriver bit of Fig. 3 along its axial cross section structure schematic diagram.
Specific embodiment
Specific embodiment of the utility model is further elaborated below.It should be understood that herein to this
The explanation of utility model embodiment is not used to limit the protection scope of the utility model.
As shown in Figure 1 to Figure 2, the structural schematic diagram of the impact resistance screwdriver bit provided for the utility model first embodiment.
The impact resistance screwdriver bit 100 includes one section of twisting resistance section 10, two sections of axial sides for being separately positioned on the twisting resistance section 10
First shock resistance section 11, the changeover portion 12 of two sections of axial sides for being separately positioned on the first shock resistance section 11, two sections of difference
The second shock resistance section 13 that the axial sides of the changeover portion 12 are arranged in and two are separately positioned on the shock resistance section
The screwdriver bit 14 of axial sides.According to the actual needs, the impact resistance screwdriver bit can also include more shock resistance sections.In this reality
It applies in example, only enumerates two sections of shock resistance sections, i.e. the first, second shock resistance section 11,13.
The twisting resistance section 10 is different according to the difference of the axial length of the impact resistance screwdriver bit, but its effect is the same
's.By a large amount of practical proof, when the axial length of the twisting resistance section 10 is less than 2 centimetres, along the twisting resistance section
The contour line of the twisting resistance section 10 is the first arc on the section of 10 central axis, as shown in Figure 2.The diameter of first arc
It designs according to actual needs, the minimum diameter of the usual twisting resistance section 10 should be slightly smaller than or straight equal to the screwdriver bit 14
Diameter, so that the twisting resistance section 10 is first when being transmitted to impact force suffered by the screwdriver bit 14 in the twisting resistance section 10
It deforms, to protect the screwdriver bit 14.
Described two first, second shock resistance sections 11,13 structures having the same, are symmetrically disposed in the twisting resistance
The axial sides of section 10, section can be regular hexagon, and only the axial length of the first shock resistance section 11 is greater than described
The axial length of second shock resistance section 13.The outer section of diameter of a circle in the section of the first shock resistance section 11 and second anti-impact
Outer section of diameter of a circle for hitting the section of section 13 is equal, and the outer section of diameter of a circle in the section of the first shock resistance section 11 is greater than institute
State the maximum gauge in the section of twisting resistance section 10.
The changeover portion 12 is folded between the first, second shock resistance section 11,13, along the twisting resistance section 10
Central axis section on contour line be third arc.Described first, third arc curvature is relative to the impact resistance screwdriver bit
Central axis be negative, and the curvature of first arc be less than the third arc curvature.The section of the twisting resistance section 10
Minimum diameter is less than the section minimum diameter of the changeover portion 12, so that the changeover portion 12 was used to be born screwdriver bit 14
Impact force can be quickly transmitted to twisting resistance section 10.It is envisioned that when the length of the impact resistance screwdriver bit is smaller, it should
Changeover portion 12 can be omitted.
The screwdriver bit 14 bears to come from screw when starting when special when rotated for directly contacting with fasteners such as screws
Impact force.The structure of the screwdriver bit 14 and having a size of normal structure, is the prior art, is no longer described in detail herein.
As shown in Figure 3 and Figure 4, the structural schematic diagram of the impact resistance screwdriver bit provided for the utility model second embodiment.
The impact resistance screwdriver bit 200 includes one section of twisting resistance section 20, two sections of axial sides for being separately positioned on the twisting resistance section 20
First shock resistance section 21, the changeover portion 22 of two sections of axial sides for being separately positioned on the first shock resistance section 21, two sections of difference
The second shock resistance section 23 that the axial sides of the changeover portion 22 are arranged in and two are separately positioned on the shock resistance section
The screwdriver bit 24 of axial sides.
The first embodiment is only that the structure of twisting resistance section is different from the difference of second embodiment.Due to the second implementation
The axial length of the twisting resistance section 10 of example is greater than 2 centimetres, therefore on the section along the central axis of the twisting resistance section 20
The contour line of the twisting resistance section 20 includes the second arc that one section of straight line 21 and two sections are separately positioned on 21 both ends of straight line
Shape 22.First arc is equal with the diameter of the second arc 12.The curvature of second, third arc is relative to the resistance to punching
The central axis for hitting screwdriver bit 200 is negative.
Compared with prior art, impact resistance screwdriver bit 100,200 provided by the utility model is provided with described anti-in the middle
Different shapes is presented according to the size of size for torsion section 10,20, i.e., when the axial length of the twisting resistance section 10 is less than 2
Centimetre when, on the section along the central axis of the twisting resistance section 10 contour line of the twisting resistance section 10 be the first arc, and
It is described on the section along the central axis of the twisting resistance section 20 when the axial length of the twisting resistance section 20 is greater than 2 centimetres
The contour line of twisting resistance section 20 includes the second arc 22 that one section of straight line 21 and two sections are separately positioned on 21 both ends of straight line.
Such structure designs so that working as in impact resistance screwdriver bit 100,200 in use, the torsion that the impact resistance screwdriver bit 100,200 is born
Main concentrate is transmitted in the twisting resistance section 10,20, rather than concentrates on screwdriver bit 14,24, and the twisting resistance section 10,20 is held
The torsion received is less than its yield limit, i.e. the torsion will not twist off the twisting resistance section 10,20, so as to protect the screwdriver bit 14,
24 will not deform because of impact, or even the phenomenon that gap occur, and then its service life can be improved.
The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any
Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.
Claims (8)
1. impact resistance screwdriver bit, it is characterised in that: the impact resistance screwdriver bit includes one section of twisting resistance section, two sections be separately positioned on it is described
First shock resistance section of the axial sides of twisting resistance section, the mistake of two sections of axial sides for being separately positioned on the first shock resistance section
Section is crossed and the second shock resistance section of two sections of axial sides for being separately positioned on the changeover portion, when the axis of the twisting resistance section
When to length less than 2 centimetres, the contour line of the twisting resistance section is first on the section along the central axis of the twisting resistance section
Arc, it is described on the section along the central axis of the twisting resistance section when the axial length of the twisting resistance section is greater than 2 centimetres
The contour line of twisting resistance section includes the second arc that one section of straight line and two sections are separately positioned on the straight line both ends, and described first
Arc is equal with the diameter of the second arc, and the outer section of diameter of a circle in the section of the first shock resistance section is greater than the twisting resistance section
Section maximum gauge, on the section along the central axis of the twisting resistance section contour line of the changeover portion be third arc
Shape.
2. impact resistance screwdriver bit as described in claim 1, it is characterised in that: the impact resistance screwdriver bit further includes two and is respectively set
In the screwdriver bit of the axial sides of the shock resistance section.
3. impact resistance screwdriver bit as described in claim 1, it is characterised in that: outer section of the section of the first shock resistance section is round
Diameter is equal with the outer section of diameter of a circle in the section of the second shock resistance section.
4. impact resistance screwdriver bit as described in claim 1, it is characterised in that: the curvature of first, second, third arc is opposite
It is negative in the central axis of the impact resistance screwdriver bit.
5. impact resistance screwdriver bit as described in claim 1, it is characterised in that: the curvature of first, second arc is less than described
The curvature of third arc.
6. impact resistance screwdriver bit as described in claim 1, it is characterised in that: the axial length of the first shock resistance section is greater than institute
State the axial length of the second shock resistance section.
7. impact resistance screwdriver bit as described in claim 1, it is characterised in that: the section minimum diameter of the twisting resistance section is less than institute
State the section minimum diameter of changeover portion.
8. impact resistance screwdriver bit as claimed in claim 7, it is characterised in that: the cross sectional shape of the first, second shock resistance section
For regular hexagon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548096.5U CN208913974U (en) | 2018-09-21 | 2018-09-21 | A kind of impact resistance screwdriver bit |
| JP2018004231U JP3219704U (en) | 2018-09-21 | 2018-10-31 | Impact resistant bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548096.5U CN208913974U (en) | 2018-09-21 | 2018-09-21 | A kind of impact resistance screwdriver bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208913974U true CN208913974U (en) | 2019-05-31 |
Family
ID=65020296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821548096.5U Active CN208913974U (en) | 2018-09-21 | 2018-09-21 | A kind of impact resistance screwdriver bit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3219704U (en) |
| CN (1) | CN208913974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045614A (en) * | 2020-08-20 | 2020-12-08 | 美事满工具(海安)有限公司 | Multi-section impact belt structure screwdriver head |
-
2018
- 2018-09-21 CN CN201821548096.5U patent/CN208913974U/en active Active
- 2018-10-31 JP JP2018004231U patent/JP3219704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045614A (en) * | 2020-08-20 | 2020-12-08 | 美事满工具(海安)有限公司 | Multi-section impact belt structure screwdriver head |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3219704U (en) | 2019-01-17 |
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