CN209087477U - A kind of potentiometer - Google Patents
A kind of potentiometer Download PDFInfo
- Publication number
- CN209087477U CN209087477U CN201821997596.7U CN201821997596U CN209087477U CN 209087477 U CN209087477 U CN 209087477U CN 201821997596 U CN201821997596 U CN 201821997596U CN 209087477 U CN209087477 U CN 209087477U
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- locating piece
- axle sleeve
- brush
- shaft
- potentiometer
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Abstract
The utility model relates to electric elements technical fields, refer in particular to a kind of potentiometer, including shaft, axle sleeve, switching mechanism and regulating mechanism, the shaft sequentially passes through the axle sleeve, the switching mechanism and the regulating mechanism, the shaft includes hand grip portion, middle part and control unit, the both ends of the middle part are connected to the hand grip portion and the control unit, and the lateral wall of the middle part is recessed inwardly to form capillary groove, and the capillary groove content is equipped with waterproof apron；The inner wall of the axle sleeve is provided with inside groove, and the inside groove is for being installed with the waterproof apron.The utility model is provided with inside groove in axle sleeve, and waterproof apron is set in capillary groove by being provided with capillary groove in shaft；After shaft is inserted into axle sleeve, waterproof apron can be located in inside groove, to play waterproof action, avoid extraneous water from entering the utility model, improve the stability of the utility model.
Description
Technical field
The utility model relates to electric elements technical fields, refer in particular to a kind of potentiometer.
Background technique
Potentiometer is the resistive element that resistance value can be adjusted by certain changing rule.Potentiometer is usually mainly by resistance and removable
Dynamic brush composition, brush contact and electric connection resistance, when brush is moved along resistance, output end obtain and displacement at
The resistance value or voltage of certain relationship.Potentiometer can both make three-terminal element and use or make two-terminal element use.The latter may be regarded as
One variable resistance, since its effect in circuit is to obtain that electricity must be exported at certain relationship with input voltage (applied voltage)
Pressure, therefore referred to as potentiometer.
In existing potentiometer, substantially all includes that shaft, axle sleeve, switching mechanism and regulating mechanism four are most of, pass through
Regulating mechanism is inserted into after shaft warp beam sleeve, switching mechanism, then rotating shaft, that is, controllable adjustable mechanism resistance changes,
To change voltage value.Existing potentiometer, switching mechanism and regulating mechanism are set in electrical equipment, and shaft is prominent
Stretch out electrical equipment；Shaft is inserted into axle sleeve to realize, then there are gaps in shaft and axle sleeve；When potentiometer makes
After long, abrasion is had between shaft and axle sleeve causes the gap to increase, then be possible to can be by between this for extraneous water
Gap enters in potentiometer, so that potentiometer be allowed to break down, this undoubtedly reduces the stability of potentiometer.
Summary of the invention
The utility model provides a kind of potentiometer for problem of the prior art, has water-proof function, to improve electricity
The stability of position device.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of potentiometer provided by the utility model, including shaft, axle sleeve, the switching mechanism for providing switch position and
For the regulating mechanism according to the rotation adjustment output current potential of the shaft, the shaft sequentially passes through the axle sleeve, described opens
Shutting mechanism and the regulating mechanism, the shaft include hand grip portion, middle part and control unit, and the both ends of the middle part connect respectively
It is connected to the hand grip portion and the control unit, the lateral wall of the middle part is recessed inwardly to form capillary groove, in the capillary groove
It has been installed with waterproof apron；
The inner wall of the axle sleeve is provided with inside groove, and the inside groove is for being installed with the waterproof apron.
Further, the middle part is additionally provided with exterior bayonet slot, and the exterior bayonet slot content is equipped with snap ring, the axle sleeve it is interior
Wall is provided with inner card cage, and the snap ring is caught in the inner card cage so that the shaft cannot extract axle sleeve.
Further, the switching mechanism includes the first locating piece, elastic slice and the second locating piece, first locating piece
It is sheathed on outside the control unit with the elastic slice, second locating piece is covered on the bottom of the axle sleeve；First positioning
Part is set in the axle sleeve and between the elastic slice and second locating piece, and the elastic slice described first for determining
Position part presses to second locating piece；First locating piece is provided with the first protrusion, and second locating piece, which is provided with, to be used for
The second protrusion contradicted with first protrusion.
Further, first locating piece includes rotating member and contradictory piece, and the bottom setting of the rotating member is useful
In the plug-in unit for being inserted into the regulating mechanism, the contradictory piece is sheathed on the plug-in unit；The bottom of the rotating member is provided with positioning
Block, the contradictory piece are provided with the location hole for being installed with the locating piece, and first protrusion is set to the contradictory piece.
Further, the bottom of second locating piece is provided with partition, and the regulating mechanism is set to the partition
Bottom.
Further, the regulating mechanism includes the first brush, first resistor disk, the first fixed jaw and the first adjustable pawl,
First fixed jaw is connected to the first resistor disk, and the first adjustable pawl is connected to first brush, and described first
Resistance disk is provided with the first carbon film, and first brush and first carbon film contradict, and first brush is total with the shaft
With rotation.
Further, the regulating mechanism further includes that the second brush, second resistance disk, the second fixed jaw and second are adjustable
Pawl, second fixed jaw are connected to the second resistance disk, and the second adjustable pawl is connected to second brush, and described
Two resistance disks are provided with the second carbon film, and second brush and second carbon film contradict；The shaft passes through first electricity
Second brush is connected in after brush, for driving second brush to rotate synchronously.
Preferably, the axle sleeve is provided with the first fixation hole, is provided at the top of the first resistor disk for being inserted into
State the first fixed column of the first fixation hole；The bottom of the first resistor disk is provided with the second fixation hole, the second resistance disk
Top be provided with the second fixed column for being inserted into second fixation hole.
Further, the potentiometer further includes rivet, and the axle sleeve and the regulating mechanism pass through the rivet interlacement.
Further, the side of the hand grip portion is provided with anti-skidding section.
The utility model has the beneficial effects that the utility model is by being provided with capillary groove in shaft, and it is provided in axle sleeve
Inside groove, and waterproof apron is set in capillary groove；After shaft is inserted into axle sleeve, waterproof apron can be located in inside groove, thus
Waterproof action is played, avoids extraneous water from entering the utility model, improves the stability of the utility model.
Detailed description of the invention
Fig. 1 is the explosive view of the utility model.
Fig. 2 is the first locating piece schematic diagram of the utility model.
Fig. 3 is the schematic internal view of the axle sleeve of the utility model.
Appended drawing reference: 1-shaft, 2-axle sleeves, 3-switching mechanisms, 4-regulating mechanisms, 5-rivets, 11-hand grip portions,
12-middle parts, 13-control units, 14-waterproof aprons, 15-snap rings, 21-inside grooves, 22-inner card cages, 23-the first is fixed
Hole, the 31-the first locating piece, 32-elastic slices, the 33-the second locating piece, 34-partitions, the 41-the first brush, 42-first resistors
Disk, the 43-the first fixed jaw, the 44-the first adjustable pawl, the 45-the second brush, 46-second resistance disks, the 47-the second fixed jaw,
48-the second adjustable pawl, 111-anti-skidding sections, 121-capillary grooves, 122-exterior bayonet slots, 311-rotating members, 312-contradictory piece,
331-the second protrusion, the 421-the first fixed column, the 422-the second fixation hole, the 461-the second fixed column, 3111-plug-in units,
3112-locating pieces, the 3121-the first protrusion.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.The utility model is carried out below in conjunction with attached drawing
Detailed description.
As shown in figures 1 and 3, a kind of potentiometer provided by the utility model, including shaft 1, axle sleeve 2, for provide open
Close gear switching mechanism 3 and for according to the shaft 1 rotation adjustment output current potential regulating mechanism 4, the shaft 1 according to
Secondary to pass through the axle sleeve 2, the switching mechanism 3 and the regulating mechanism 4, the shaft 1 includes hand grip portion 11,12 and of middle part
Control unit 13, the both ends of the middle part 12 are connected to the hand grip portion 11 and the control unit 13, the middle part 12
Lateral wall be recessed inwardly to form capillary groove 121,121 content of capillary groove be equipped with waterproof apron 14；The inner wall of the axle sleeve 2
It is provided with inside groove 21, the inside groove 21 is for being installed with the waterproof apron 14.
The utility model is provided with inside groove 21 in axle sleeve 2, and marine glue by being provided with capillary groove 121 in shaft 1
Circle 14 is set in capillary groove 121；After shaft 1 is inserted into axle sleeve 2, waterproof apron 14 can be located in inside groove 21, to play
Waterproof action avoids extraneous water from entering the utility model, improves the stability of the utility model.
As shown in figures 1 and 3, in the present embodiment, the middle part 12 is additionally provided with exterior bayonet slot 122, the exterior bayonet slot
122 contents are equipped with snap ring 15, and the inner wall of the axle sleeve 2 is provided with inner card cage 22, the snap ring 15 be caught in the inner card cage 22 with
Prevent the shaft 1 is from extracting axle sleeve 2.It by the setting of snap ring 15, allows shaft 1 after axle sleeve 2 is installed, will not be pulled out
Out, to improve the stability of the utility model.Specifically, the erection sequence of shaft 1 and snap ring 15 can are as follows: first snap ring 15
It is put into inner card cage 22, then shaft 1 is inserted into from the top of axle sleeve 2 again, when shaft 1 can strut snap ring 15 so that snap ring
15 deformation occurs, so that shaft 1 can be smoothly inserted into axle sleeve 2；When exterior bayonet slot 122 is by snap ring 15, snap ring 15 restores shape
Become and be located in exterior bayonet slot 122, to realize the effect that shaft 1 is blocked, shaft 1 is allowed not to be pulled out axle sleeve 2.Certainly,
The mounting means of shaft 1 and snap ring 15 is there are also very much, as long as in can be realized and allowing snap ring 15 to be installed in exterior bayonet slot 122 and be caught in
Card slot 22, other modes that details are not described herein.
As depicted in figs. 1 and 2, in the present embodiment, the switching mechanism 3 include the first locating piece 31, elastic slice 32 and
Second locating piece 33, first locating piece 31 and the elastic slice 32 are sheathed on outside the control unit 13, second locating piece
33 are covered on the bottom of the axle sleeve 2；First locating piece 31 is set in the axle sleeve 2 and is located at the elastic slice 32 and institute
It states between the second locating piece 33, the elastic slice 32 is used to first locating piece 31 press to second locating piece 33；It is described
First locating piece 31 is provided with the first protrusion 3121, and second locating piece 33 is provided with for supporting with first protrusion 3121
Second protrusion 331 of touching.The utility model passes through the setting of elastic slice 32, and the elastic force that elastic slice 32 is utilized can the first locating piece 31
It is pressed on the second locating piece 33 by ground, is then contradicted using the cooperation of the first protrusion 3121 and the second protrusion 331, limit first
The angle rotatable of locating piece 31 plays the role of controlling the utility model resistance adjustable extent.
Specifically, as shown in Fig. 2, first locating piece 31 includes rotating member 311 and contradictory piece 312, the rotating member
311 bottom is provided with the plug-in unit 3111 for being inserted into the regulating mechanism 4, and the contradictory piece 312 is sheathed on the plug-in unit
3111；The bottom of the rotating member 311 is provided with locating piece 3112, and the contradictory piece 312 is provided with for being installed with the positioning
The location hole (being not marked in figure) of block 3112, first protrusion 3121 are set to the contradictory piece 312.
Specifically, the regulating mechanism 4 is arranged as shown in Figure 1, the bottom of second locating piece 33 is provided with partition 34
In the bottom of the partition 34.Switching mechanism 3 and regulating mechanism 4 are isolated by partition 34, can be avoided switching on and shutting down
There is electric current to flow through between structure 3 and regulating mechanism 4, to improve the safety of the utility model.
Preferably, as shown in Figure 1, the regulating mechanism 4 includes the first brush 41, first resistor disk 42, the first fixed jaw
43 and the first adjustable pawl 44, first fixed jaw 43 be connected to the first resistor disk 42, the first adjustable pawl 44 connects
In first brush 41, the first resistor disk 42 is provided with the first carbon film (being not marked in figure), first brush 41 with
First carbon film contradicts, and first brush 41 is with 1 common rotation of shaft.I.e. the utility model is by the first brush
41 and first resistor disk 42 constitute the first adjustable resistance, by shaft 1 drive the first brush 41 first resistor disk 42 the first carbon
Sliding is on film to change resistance value.
Specifically, as shown in Figure 1, the regulating mechanism 4 further includes the second brush 45, the fixation of second resistance disk 46, second
Pawl 47 and the second adjustable pawl 48, second fixed jaw 47 are connected to the second resistance disk 46, and the second adjustable pawl 48 connects
It is connected to second brush 45, the second resistance disk 46 is provided with the second carbon film (being not marked in figure), second brush 45
It is contradicted with second carbon film；The shaft 1 is connected in second brush 45 after passing through first brush 41, for driving
Second brush 45 rotates synchronously.The utility model can by being provided with the second brush 45 and the composition of second resistance disk 46 second
Resistance is adjusted, makes user as needed, the first adjustable resistance is connected with the second adjustable resistance to increase adjustable extent,
Or adjustable accuracy is promoted by the way that the first adjustable resistance and the second adjustable resistance are carried out parallel connection, so that it is practical new to improve this
The scope of application of type.
It should be noted that the shaft 1 of the utility model is to sequentially pass through axle sleeve 2, the first locating piece 31, the second locating piece
33, partition 34 and regulating mechanism 4, wherein specifically, the plug-in unit 3111 of rotating member 311 is across the second locating piece 33 and partition 34
It is inserted into first resistor disk 42, the reliability being driven between first resistor disk 42 further to promote shaft 1 afterwards.
Preferably, as shown in Figure 1, the axle sleeve 2 is provided with the first fixation hole 23, the top of the first resistor disk 42 is set
It is equipped with the first fixed column 421 for being inserted into first fixation hole 23；The bottom of the first resistor disk 42 is provided with second
Fixation hole 422, the top of the second resistance disk 46 are provided with the second fixed column for being inserted into second fixation hole 422
The stability of connection between 46 three of axle sleeve 2, first resistor disk 42 and second resistance disk of 461, Lai Zengjia the utility model,
So that axle sleeve 2, first resistor disk 42 and 46 thrin of second resistance disk will not be rotated with the rotation of shaft 1, to mention
The stability and reliability of the utility model are risen.
As shown in Figure 1, in the present embodiment, the potentiometer further includes rivet 5, the axle sleeve 2 and the regulating mechanism 4
It is connected by the rivet 5, further improves the stability and globality of the utility model.
In the present embodiment, the side of the hand grip portion 11 is provided with anti-skidding section 111, holds shaft 1 convenient for user
To realize rotation.
The above is only the utility model preferred embodiment, is not made in any form to the utility model
Limitation, although the utility model is disclosed as above with preferred embodiment, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, makes when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, but it is all without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification to the above embodiments, belongs to practical
In the range of new technique scheme.
Claims (10)
1. a kind of potentiometer, including shaft, axle sleeve, the switching mechanism for providing switch position and for according to the shaft
The regulating mechanism of rotation adjustment output current potential, the shaft sequentially pass through the axle sleeve, the switching mechanism and the adjusting machine
Structure, it is characterised in that: the shaft includes hand grip portion, middle part and control unit, and the both ends of the middle part are connected to institute
Hand grip portion and the control unit are stated, the lateral wall of the middle part is recessed inwardly to form capillary groove, and the capillary groove content is equipped with
Waterproof apron；
The inner wall of the axle sleeve is provided with inside groove, and the inside groove is for being installed with the waterproof apron.
2. potentiometer according to claim 1, it is characterised in that: the middle part is additionally provided with exterior bayonet slot, the wild card
Slot content is equipped with snap ring, and the inner wall of the axle sleeve is provided with inner card cage, and the snap ring is caught in the inner card cage so that described turn
Axis cannot extract axle sleeve.
3. potentiometer according to claim 1, it is characterised in that: the switching mechanism include the first locating piece, elastic slice with
And second locating piece, first locating piece and the elastic slice are sheathed on outside the control unit, second locating piece is covered on
The bottom of the axle sleeve；First locating piece be set in the axle sleeve and be located at the elastic slice and second locating piece it
Between, the elastic slice is used to first locating piece press to second locating piece；It is convex that first locating piece is provided with first
It rises, second locating piece is provided with the second protrusion for contradicting with first protrusion.
4. potentiometer according to claim 3, it is characterised in that: first locating piece includes rotating member and contradictory piece,
The bottom of the rotating member is provided with the plug-in unit for being inserted into the regulating mechanism, and the contradictory piece is sheathed on the plug-in unit；Institute
The bottom for stating rotating member is provided with locating piece, and the contradictory piece is provided with the location hole for being installed with the locating piece, and described
One protrusion is set to the contradictory piece.
5. potentiometer according to claim 3, it is characterised in that: the bottom of second locating piece is provided with partition, institute
State the bottom that regulating mechanism is set to the partition.
6. potentiometer according to claim 1, it is characterised in that: the regulating mechanism includes the first brush, first resistor
Disk, the first fixed jaw and the first adjustable pawl, first fixed jaw are connected to the first resistor disk, and the first adjustable pawl connects
It is connected to first brush, the first resistor disk is provided with the first carbon film, and first brush and first carbon film contradict,
First brush is with the shaft common rotation.
7. potentiometer according to claim 6, it is characterised in that: the regulating mechanism further includes the second brush, the second electricity
Resistance disk, the second fixed jaw and the second adjustable pawl, second fixed jaw are connected to the second resistance disk, the second adjustable pawl
It is connected to second brush, the second resistance disk is provided with the second carbon film, and second brush is supported with second carbon film
Touching；The shaft is connected in second brush after passing through first brush, for driving second brush to rotate synchronously.
8. potentiometer according to claim 7, it is characterised in that: the axle sleeve is provided with the first fixation hole, and described first
The first fixed column for being inserted into first fixation hole is provided at the top of resistance disk；The bottom of the first resistor disk is arranged
There is the second fixation hole, the second fixed column for being inserted into second fixation hole is provided at the top of the second resistance disk.
9. potentiometer according to claim 1, it is characterised in that: the potentiometer further includes rivet, the axle sleeve and institute
It states regulating mechanism and passes through the rivet interlacement.
10. potentiometer according to claim 1, it is characterised in that: the side of the hand grip portion is provided with anti-skidding section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997596.7U CN209087477U (en) | 2018-11-28 | 2018-11-28 | A kind of potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997596.7U CN209087477U (en) | 2018-11-28 | 2018-11-28 | A kind of potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087477U true CN209087477U (en) | 2019-07-09 |
Family
ID=67126137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821997596.7U Active CN209087477U (en) | 2018-11-28 | 2018-11-28 | A kind of potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087477U (en) |
-
2018
- 2018-11-28 CN CN201821997596.7U patent/CN209087477U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |