CN211294777U - Potentiometer for electric tool - Google Patents
Potentiometer for electric tool Download PDFInfo
- Publication number
- CN211294777U CN211294777U CN202020366936.7U CN202020366936U CN211294777U CN 211294777 U CN211294777 U CN 211294777U CN 202020366936 U CN202020366936 U CN 202020366936U CN 211294777 U CN211294777 U CN 211294777U
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- shell
- protective housing
- potentiometer
- potentiometre
- thread
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Abstract
The utility model discloses a potentiometer for an electric tool, which comprises a structural screw, wherein the outer surface of the structural screw is provided with a thread, the outer surface of the thread is provided with a potentiometer shell, the outer surface of the thread is provided with a fixer, the outer surface of the lower end of the fixer is provided with an upper protective shell, the outer surface of the lower end of the upper protective shell is provided with a rotating shaft, the outer surface of the lower end of the rotating shaft is provided with a lower protective shell, the inner surface of the lower protective shell is provided with a sealing ring, the inner part of the lower protective shell is provided with a rotating groove, the outer surface of the upper protective shell is provided with a contact block, the potentiometer for the electric tool can rotatably adjust the position of the contact block, the application range is wider, the potentiometer for the electric tool is provided with a protection device to protect the potentiometer from deformation, no displacement and no dust accumulation.
Description
Technical Field
The utility model relates to a potentiometre field, in particular to potentiometre for electric tool.
Background
The potentiometer is a resistance element with three leading-out terminals and a resistance value which can be adjusted according to a certain change rule, and generally comprises a resistor body and a movable electric brush, when the electric brush moves along the resistor body, the resistance value or voltage which has a certain relation with displacement is obtained at an output terminal; the existing potentiometer for the electric tool has the phenomenon that a contact block does not conform to the position of the electric tool when in use, the potentiometer with the contact block at a specific position is needed, and secondly, the contact block can be deformed in the use process to cause the functional damage of the potentiometer.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a potentiometer for electric tool, which can effectively solve the problems in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a potentiometre for electric tool, includes the structure screw, the surface of structure screw is provided with the screw thread, threaded surface is provided with the potentiometre shell, threaded surface is provided with the fixer, the lower extreme surface of fixer is provided with the upper protective housing, the lower extreme surface of upper protective housing is provided with the rotation axis, the lower extreme surface of rotation axis is provided with the lower protective housing, the internal surface of lower protective housing is provided with the sealing washer, the inside of lower protective housing is provided with the swivelling chute, the surface of upper protective housing is provided with contact block No. one, the surface of upper protective housing is provided with contact block No. two, the surface of upper protective housing is provided with contact block No. three.
Preferably, the upper end surface in lower protective housing is inlayed in the swivelling chute, the rotation axis can be rotatory at the surface of swivelling chute, be fixed connection between rotation axis and the last protective housing, be swing joint between rotation axis and the swivelling chute, be swing joint between fixer and the last protective housing.
Preferably, a contact piece runs through the surface in the upper protective housing, No. two contact pieces run through the surface in the upper protective housing, No. three contact pieces run through the surface in the upper protective housing, a contact piece, No. two contact pieces, No. three contact pieces are equidistant and arrange, the potentiometre shell runs through the surface in rotation axis, lower protective housing, a contact piece, No. two contact pieces, No. three contact pieces and potentiometre shell contact.
Preferably, the inner surface of the potentiometer shell is provided with a screw hole, the potentiometer shell is in threaded connection with a thread, the thread is movably connected with a fixer, and the thread is fixedly connected with a structural screw.
Preferably, be fixed connection between sealing washer and the lower protective housing, be fixed connection between sealing washer and the potentiometre shell, be swing joint between upper protective housing and the potentiometre shell, be swing joint between rotation axis and the potentiometre shell, be swing joint between lower protective housing and the potentiometre shell, be fixed connection between potentiometre shell and the screw.
Compared with the prior art, the utility model discloses following beneficial effect has: this a potentiometre for electric tool, through being provided with the protective housing, lower protective housing and rotation axis, contact block sets up at last protective housing, the rotation axis can drive the protective housing at the protective housing internal rotation down, it is rotatory to drive contact block, position between adjustment contact block and the electric tool, make it be applicable to any electric tool, through being provided with the protective housing, sealing washer and fixer, the fixer makes the rigidity between construction screw and the last protective housing, go up protective housing protection contact block, prevent that contact block from taking place deformation in the use, the sealing washer makes the potentiometre shell seal inside the protective housing, whole a potentiometre for electric tool simple structure, and convenient operation.
Drawings
Fig. 1 is a schematic view of an overall structure of a potentiometer for an electric tool according to the present invention;
fig. 2 is a cross-sectional view of a potentiometer for a power tool according to the present invention;
FIG. 3 is a schematic view of a structural screw of a potentiometer for a power tool according to the present invention;
fig. 4 is a partial structural view of a potentiometer according to the present invention.
In the figure: 1. a structural screw; 2. a thread; 3. a potentiometer shell; 4. a holder; 5. an upper protective shell; 6. A rotating shaft; 7. a lower protective shell; 8. a seal ring; 9. a rotating tank; 10. a first contact block; 11. a second contact block; 12. a third contact block; 13. and a screw hole.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 to 4, a potentiometer for an electric tool comprises a structural screw 1, a thread 2 is arranged on the outer surface of the structural screw 1, a potentiometer shell 3 is arranged on the outer surface of the thread 2, a fixer 4 is arranged on the outer surface of the thread 2, an upper protective shell 5 is arranged on the outer surface of the lower end of the fixer 4, a rotating shaft 6 is arranged on the outer surface of the lower end of the upper protective shell 5, a lower protective shell 7 is arranged on the outer surface of the lower protective shell 6, a sealing ring 8 is arranged on the inner surface of the lower protective shell 7, a rotating groove 9 is arranged inside the lower protective shell 7, a first contact block 10 is arranged on the outer surface of the upper protective shell 5, a second contact block 11 is arranged on the outer surface of the.
The upper end surface in lower protective housing 7 is inlayed in swivelling chute 9, and rotation axis 6 can be rotatory at the surface of swivelling chute 9, is fixed connection between rotation axis 6 and the upper protective housing 5, ensures the rigidity of rotation axis 6, is swing joint between rotation axis 6 and the swivelling chute 9, is favorable to the rotation of rotation axis 6, is swing joint between fixer 4 and the upper protective housing 5, is favorable to the dismantlement of fixer 4.
Contact piece 10 runs through in the surface of upper protective housing 5, contact piece 11 No. two runs through in the surface of upper protective housing 5, contact piece 12 No. three runs through in the surface of upper protective housing 5, contact piece 10 No. two, contact piece 11 No. three are equidistant arranging, potentiometre shell 3 runs through in rotation axis 6, the surface of lower protective housing 7, contact piece 10 No. two, contact piece 12 No. three and potentiometre shell 3 contact.
The inner surface of the potentiometer shell 3 is provided with a screw hole 13, the potentiometer shell 3 is in threaded connection with the thread 2, the thread 2 is movably connected with the fixer 4, the dismounting of the fixer 4 is facilitated, the thread 2 is fixedly connected with the structural screw 1, and the position fixing of the thread 2 is ensured.
Be fixed connection between sealing washer 8 and the lower protective housing 7, ensure the rigidity of sealing washer 8, be fixed connection between sealing washer 8 and the potentiometre shell 3, ensure the rigidity of potentiometre shell 3, be swing joint between upper protective housing 5 and the potentiometre shell 3, be favorable to the rotation of upper protective housing 5, be swing joint between rotation axis 6 and the potentiometre shell 3, be favorable to the rotation of rotation axis 6, be swing joint between lower protective housing 7 and the potentiometre shell 3, be favorable to the rotation of lower protective housing 7, be fixed connection between potentiometre shell 3 and the screw 13, ensure the rigidity of screw 13.
It should be noted that, the utility model relates to a potentiometre for electric tool, when using, the user sets up the contact piece at last protective housing 5, rotation axis 6 can drive protective housing 5 at 7 internal rotations in the protective housing down, it is rotatory to drive the contact piece, position between adjustment contact piece and the electric tool, make it be applicable to any electric tool, the user makes position fixation between construction screw 1 and the last protective housing 5 with fixer 4, the contact piece is protected to last protective housing 5, prevent that the contact piece from taking place deformation in the use, sealing washer 8 makes potentiometre shell 3 sealed inside the protective housing, and is comparatively practical.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A potentiometer for electric tools, comprising a structural screw (1), characterized in that: the outer surface of the structural screw (1) is provided with a thread (2), the outer surface of the thread (2) is provided with a potentiometer shell (3), a fixer (4) is arranged on the outer surface of the thread (2), an upper protective shell (5) is arranged on the outer surface of the lower end of the fixer (4), a rotating shaft (6) is arranged on the outer surface of the lower end of the upper protective shell (5), a lower protective shell (7) is arranged on the outer surface of the lower end of the rotating shaft (6), a sealing ring (8) is arranged on the inner surface of the lower protective shell (7), a rotating groove (9) is arranged in the lower protective shell (7), a first contact block (10) is arranged on the outer surface of the upper protective shell (5), a second contact block (11) is arranged on the outer surface of the upper protective shell (5), the outer surface of the upper protective shell (5) is provided with a third contact block (12).
2. A potentiometer according to claim 1, wherein: the utility model discloses a rotary table, including protective housing (7), rotatory groove (9), rotation axis (6) can be rotatory in the surface of rotatory groove (9), be fixed connection between rotation axis (6) and upper protective housing (5), be swing joint between rotation axis (6) and rotatory groove (9), be swing joint between fixer (4) and upper protective housing (5).
3. A potentiometer according to claim 1, wherein: contact piece (10) run through the surface in last protective housing (5), contact piece (11) No. two run through the surface in last protective housing (5), contact piece (12) No. three run through the surface in last protective housing (5), contact piece (10), contact piece (11), contact piece (12) No. two are equidistant and arrange, potentiometre shell (3) runs through the surface in rotation axis (6), lower protective housing (7), contact piece (10), contact piece (11), contact piece (12) No. two and potentiometre shell (3) contact.
4. A potentiometer according to claim 1, wherein: the novel potentiometer is characterized in that a screw hole (13) is formed in the inner surface of the potentiometer shell (3), the potentiometer shell (3) is in threaded connection with the thread (2), the thread (2) is movably connected with the fixer (4), and the thread (2) is fixedly connected with the structural screw (1).
5. A potentiometer according to claim 1, wherein: be fixed connection between sealing washer (8) and lower protective housing (7), be fixed connection between sealing washer (8) and the potentiometre shell (3), be swing joint between upper protective housing (5) and potentiometre shell (3), be swing joint between rotation axis (6) and potentiometre shell (3), be swing joint between lower protective housing (7) and potentiometre shell (3), be fixed connection between potentiometre shell (3) and screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020366936.7U CN211294777U (en) | 2020-03-22 | 2020-03-22 | Potentiometer for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020366936.7U CN211294777U (en) | 2020-03-22 | 2020-03-22 | Potentiometer for electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211294777U true CN211294777U (en) | 2020-08-18 |
Family
ID=72021631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020366936.7U Active CN211294777U (en) | 2020-03-22 | 2020-03-22 | Potentiometer for electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211294777U (en) |
-
2020
- 2020-03-22 CN CN202020366936.7U patent/CN211294777U/en active Active
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