CN207858763U - A kind of electric drill torsion adjusting thread bush - Google Patents
A kind of electric drill torsion adjusting thread bush Download PDFInfo
- Publication number
- CN207858763U CN207858763U CN201820137096.XU CN201820137096U CN207858763U CN 207858763 U CN207858763 U CN 207858763U CN 201820137096 U CN201820137096 U CN 201820137096U CN 207858763 U CN207858763 U CN 207858763U
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- thread bush
- stress surface
- ontology
- thread
- electric drill
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Abstract
Adjust thread bush the utility model discloses a kind of electric drill torsion, an including thread bush ontology, the outer wall of the thread bush ontology be equipped with the matched screw thread of torsion adjusting ring inner thread, the inside of the thread bush ontology sets one piece of stress surface；The circumferential edges of the stress surface and the inner wall of the thread bush ontology are fixed, the front of the stress surface is in contact with cylindrical spring, the back side of the stress surface is evenly distributed with several protruding bars, and each protruding bar is respectively provided at the junction of the thread bush inner body wall and the stress surface circumferential edges.The utility model at the back side of thread bush and elastic element mating surface by increasing several protruding bars, the mechanical strength of mating surface is greatly reinforced, the overall construction intensity of thread bush is improved, solves the problems such as deformation, fracture that thread bush occurs in use well.The design cost hardly increases, and manufacturing process difficulty does not also increase, and effect is very ideal in actual application.
Description
Technical field
The utility model is related to a kind of electric drill torsion to adjust thread bush, be applied to the torsion tune of electric drill in electric tool product
Section.
Background technology
At present in electric drill class product, a major class is the electric drill for having outputting torsion regulatory function.In such electric drill
In outputting torsion regulating mechanism, need to use a kind of thread bush of regulation stall.Shown in Fig. 3 and Fig. 4, this usual screw thread
Set is circle, and outer wall is equipped with screw thread, internal to coordinate (such as cylindrical spring) with an elastic element.It is equipped in the outside of thread bush
The inner wall of one torsion adjusting ring, torsion adjusting ring is equipped with and the matched screw thread of thread bush outer wall thread.Pass through torsion tune
Pitch circle counterclockwise rotates clockwise, and thread bush can be driven to move up and down, real to adjust the compression height of elastic element
Now change the purpose that electric drill torque carries section.
The thread bush of existing electric drill class product, is essentially all that plastic material is taken to be molded.Since thread bush works
In subject the reaction force of elastic element always, therefore it is easy to appear deformations, or even fracture in use, so as to cause electric drill
Torsion regulatory function fails.In order to solve this problem, scheme conventional at present be take promoted plastic strength method (such as
Use PC, the materials such as PC+ABS, metalwork), but these solutions can have cost increase, the increase of processing technology difficulty etc.
Problem is unsuitable for large-scale promotion application.
Utility model content
For the above-mentioned prior art the problem of, the utility model are intended to provide a kind of electric drill torsion adjusting screw thread
Set can greatly improve the mechanical strength of thread bush stress surface in the case where hardly increasing cost.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：
A kind of electric drill torsion adjusts thread bush, including a thread bush ontology, is arranged on the outer wall of the thread bush ontology
Have and one piece of stress surface is set with the matched screw thread of torsion adjusting ring inner thread, the inside of the thread bush ontology；It is described by
The circumferential edges in power face and the inner wall of the thread bush ontology are fixed, and the front of the stress surface is in contact with cylindrical spring, institute
The back side for stating stress surface is evenly distributed with several protruding bars, and each protruding bar is separately positioned on the thread bush sheet
The junction of internal wall and the stress surface circumferential edges.
Further, the back side of the stress surface is evenly distributed with 6~8 protruding bars.
Further, the stress surface is annular stress surface.
Further, the width of the stress surface is more than the diameter of spring wire in the cylindrical spring.
The utility model has the beneficial effects that：
The utility model at the back side of thread bush and elastic element mating surface by increasing several protruding bars, greatly
The strong mechanical strength of mating surface, improves the overall construction intensity of thread bush, solves thread bush well using process
The problems such as deformation of middle appearance, fracture.The design cost hardly increases, and manufacturing process difficulty does not also increase, actual
Effect is very ideal in.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.Specific embodiment of the present utility model is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the sectional view when thread bush of the utility model coordinates with cylindrical spring；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the sectional view when thread bush of the prior art coordinates with cylindrical spring；
Fig. 4 is the right view of Fig. 3.
Drawing reference numeral in figure：1, thread bush ontology；2, screw thread；3, stress surface；4, cylindrical spring；5, protruding bar.
Specific implementation mode
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.
Shown in Fig. 1-2, a kind of electric drill torsion adjusting thread bush, including a thread bush ontology 1, the thread bush sheet
It is provided on the outer wall of body 1 and is arranged with the matched screw thread 2 of torsion adjusting ring inner thread, the inside of the thread bush ontology 1
One piece of stress surface 3；The circumferential edges of the stress surface 3 and the inner wall of the thread bush ontology 1 are fixed, and the stress surface 3 is just
Face is in contact with cylindrical spring 4, and the back side of the stress surface 3 is evenly distributed with several protruding bars 5, each convex rib
Item 5 is separately positioned on the junction of 1 inner wall of thread bush ontology and 3 circumferential edges of the stress surface.
Further, the back side of the stress surface 3 is evenly distributed with 6~8 protruding bars 5.
Further, the stress surface 3 is annular stress surface.
Further, the width of the stress surface 3 is more than the diameter of spring wire in the cylindrical spring 4.
The thread bush of the utility model can change its shape according to the difference of application electric drill design, but with elastic element
Faying face exists always.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of electric drill torsion adjusts thread bush, it is characterised in that：Including a thread bush ontology (1), the thread bush ontology
(1) it is provided on outer wall and the matched screw thread of torsion adjusting ring inner thread (2), the inside of the thread bush ontology (1)
One piece of stress surface (3) is set；The circumferential edges of the stress surface (3) and the inner wall of the thread bush ontology (1) are fixed, it is described by
The front in power face (3) is in contact with cylindrical spring (4), and the back side of the stress surface (3) is evenly distributed with several protruding bars
(5), each protruding bar (5) is separately positioned on thread bush ontology (1) inner wall and the stress surface (3) circumferential edges
Junction.
2. electric drill torsion according to claim 1 adjusts thread bush, it is characterised in that：The back side of the stress surface (3) is equal
It is even that 6~8 protruding bars (5) are distributed with.
3. electric drill torsion according to claim 1 adjusts thread bush, it is characterised in that：The stress surface (3) be annular by
Power face.
4. electric drill torsion according to claim 3 adjusts thread bush, it is characterised in that：The width of the stress surface (3) is big
The diameter of spring wire in the cylindrical spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137096.XU CN207858763U (en) | 2018-01-26 | 2018-01-26 | A kind of electric drill torsion adjusting thread bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137096.XU CN207858763U (en) | 2018-01-26 | 2018-01-26 | A kind of electric drill torsion adjusting thread bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207858763U true CN207858763U (en) | 2018-09-14 |
Family
ID=63458924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820137096.XU Active CN207858763U (en) | 2018-01-26 | 2018-01-26 | A kind of electric drill torsion adjusting thread bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207858763U (en) |
-
2018
- 2018-01-26 CN CN201820137096.XU patent/CN207858763U/en active Active
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