CN205943632U - Linear sliding potentiometer - Google Patents
Linear sliding potentiometer Download PDFInfo
- Publication number
- CN205943632U CN205943632U CN201620788762.7U CN201620788762U CN205943632U CN 205943632 U CN205943632 U CN 205943632U CN 201620788762 U CN201620788762 U CN 201620788762U CN 205943632 U CN205943632 U CN 205943632U
- Authority
- CN
- China
- Prior art keywords
- handle
- casing
- electric brush
- linear sliding
- cover plate
- 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.)
- Expired - Fee Related
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- Adjustable Resistors (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a linear sliding potentiometer, include open -top's casing and cover the apron of casing is equipped with the spout on the apron, be equipped with in the spout and push away the handle, the lower extreme that pushes away the handle links to each other with spherical electric brush section, and the casing is inside to be equipped with the resistive element, is equipped with the arc wall that matches with electric brush section on the resistive element, and electric brush section and arc wall sliding contact are connected, pushing away the handle epirelief and being equipped with spacing platform, the diameter of spacing platform is greater than the spout width, the apron lower extreme is equipped with the recess with contact department of casing, installs the sealing washer in the recess. The utility model discloses a linear sliding potentiometer, when the freshly ground damage was realized to resistance, the arc wall carried on spacingly all the time to electric brush section, the stability when keeping pushing away the handle and the accuracy of location. Spacing platform is used for the restriction to push away handle and the whole displacement in vertical direction of electric brush section, prevents to push away the swing of handle in the spout simultaneously. The casing passes through the screw connection with the apron after, the sealing washer can prevent that edgewises such as dust, steam from getting into inside the potentiometres.
Description
Technical field
This utility model belongs to electronic technology field and in particular to a kind of linear sliding potentiometer.
Background technology
Potentiometer is a kind of adjustable electronic component, and it is rotated by a resistive element and one or sliding system forms.
Between two fixed contacts of resistive element during an additional voltage, contact is changed on resistive element by rotation or sliding system
Position, between movable contact and fixed contact just can get the voltage becoming certain relation with movable contact position.Potentiometer
Be commonly used as potentiometer, rheostat and current controller etc., be widely used in measuring instrument, facsimile machine, photocopier, printer with
And the industry such as sensor.
Potentiometer with sliding system typically passes through to promote push handle to change position on resistive element for the contact.Repeatedly adjust meeting
Make to produce between contact and resistive element to rub and resistive element is caused damage, simultaneously so that regulation afterwards is not accurate enough, exist
It is difficult to the technical problem positioning during adjusting.
Potentiometer is installed in enterprising enforcement of various equipment and uses, and plays adjustment effect.The sealing property of potentiometer and current potential
The service life of device is closely bound up, and sealing property is bad, dust, steam etc. can be led to enter inside potentiometer, reduce potentiometer
Service life.
Utility model content
The purpose of this utility model is to solve the above problems, and provides a kind of linear sliding potentiometer.
For solving above-mentioned technical problem, the technical solution of the utility model is：A kind of linear sliding potentiometer, including open top
Housing and cover the cover plate of described housing, cover plate is provided with chute, is provided with push handle in chute, and push handle can be along the length side of chute
To movement；The lower end of push handle is connected with spherical brush portion, and enclosure interior is provided with resistive element, and resistive element is provided with and brush portion
The arcuate groove joined, brush portion is connected with arcuate groove sliding contact；Be convexly equipped with described push handle annular limiting stand, limiting stand straight
Footpath is more than trough width, and the upper surface of limiting stand is abutted with cover plate lower surface；Described cover plate lower end is provided with the contact position of housing
Groove, is provided with sealing ring in groove.
Preferably, described housing is cuboid.
Preferably, described housing and cover plate are connected by screw.
The beneficial effects of the utility model are：Linear sliding potentiometer provided by the utility model, when resistive element occurs mill
During damage, arcuate groove all the time brush portion is carried out spacing, keep promote push handle when stability and positioning accuracy.Limiting stand
For limiting the overall displacement in vertical direction in push handle and brush portion, prevent swing in chute for the push handle it is ensured that current potential simultaneously
The overall stability of device.After housing and cover plate are connected by screw, sealing ring can prevent dust, steam etc. from entering electricity from side
Inside the device of position.
Brief description
Fig. 1 is the sectional view along chute for this utility model linear sliding potentiometer；
Fig. 2 is the sectional view of this utility model linear sliding potentiometer other direction；
Fig. 3 is the perspective view of this utility model push handle, limiting stand and brush portion；
Fig. 4 is the sectional view that this utility model pushes away cap；
Fig. 5 is the top view that this utility model pushes away cap.
Description of reference numerals：1st, housing；2nd, cover plate；3rd, chute；4th, push handle；5th, brush portion；6th, limiting stand；7th, resistive element；
8th, arcuate groove；9th, metal cap；10th, plastic cap；11st, sealing ring；12nd, desiccant.
Specific embodiment
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings：
As shown in Figures 1 to 5, a kind of linear sliding potentiometer of the present utility model, including housing 1 and cover plate 2, housing 1 is length
Cube shape, its open top forms a cavity, and the bottom of cavity is equipped with resistive element 7, and cover plate 2 lid is encapsulated on housing 1, cover plate 2
It is provided with the chute 3 of rectangle, chute 3 is relative with the open top of housing 1.It is provided with the push handle 4 of cylinder, push handle 4 can in chute 3
Length direction along chute 3 moves；The lower end of push handle 4 is connected with spherical brush portion 5, and resistive element 7 is provided with and 5, brush portion
The arcuate groove 8 joined, brush portion 5 is connected with arcuate groove 8 sliding contact.During use, resistive element 7 occurs abrasion, but arcuate groove
8 all the time brush portion 5 is carried out spacing, keep promote push handle when stability and positioning accuracy.
As shown in Fig. 2 be convexly equipped with push handle 4 annular limiting stand 6, limiting stand 6 with diameter greater than chute 3 width, spacing
The upper surface of platform 6 is abutted with cover plate 2 lower surface.Limiting stand 6 is used for limiting push handle 4 and brush portion 5 entirety in the position of vertical direction
Move, prevent swing in chute 3 for the push handle it is ensured that the overall stability of potentiometer simultaneously.
As shown in figure 4, the upper end of push handle 4 is connected with pushing away cap thread, pushes away cap and include setting female metal cap 9, gold
Belong to the plastic cap 10 being arranged with cuboid outside cap 9, the width of plastic cap 10 is more than chute 3 width.Metal cap 9 with
Plastic cap 10 bonding.Push away the structure that cap is matched with plastic cap using metal cap, serviceability is good, moderate cost.As
Shown in Fig. 5, the outer wall of plastic cap 10 is provided with continuous toothed projections, and toothed projections make staff push away during cap not
Easily skid.
Noctilucent coating is had on the outer surface of metal cap 9, plastic cap 10 is made up of transparent plastic.Noctilucent coating has
Noctilucent function, being easy to people's night uses, and noctilucent coating is difficult for drop-off.
Cover plate 2 lower end is provided with groove with the contact position of housing 1, is provided with sealing ring 11 in groove.Housing 1 and cover plate 2 lead to
After crossing mode connects for screw, sealing ring 11 can prevent dust, steam etc. from entering inside potentiometer from side.
Offer blind hole on side wall within housing 1, in blind hole, be filled with desiccant 12.Desiccant has good protection against the tide
Performance is it is ensured that the normal service life of potentiometer.The quantity of blind hole and desiccant can need setting according to actually used.
Those of ordinary skill in the art will be appreciated that, embodiment described here is to aid in reader and understands this reality
With new principle it should be understood that protection domain of the present utility model is not limited to such special statement and embodiment.
Those of ordinary skill in the art can according to disclosed in this utility model these technology enlightenment make various without departing from this practicality
The various concrete deformation of new substantive other and combining, these deformation and combination are still in protection domain of the present utility model.
Claims (3)
1. a kind of linear sliding potentiometer it is characterised in that：Including open-topped housing (1) with the cover plate that covers described housing (1)
(2), cover plate (2) is provided with chute (3), is provided with push handle (4) in chute (3), and push handle (4) can be moved along the length direction of chute (3)
Dynamic；The lower end of push handle (4) is connected with spherical brush portion (5), is provided with resistive element (7), resistive element sets on (7) inside housing (1)
There is the arcuate groove (8) mating with brush portion (5), brush portion (5) are connected with arcuate groove (8) sliding contact；
Be convexly equipped with described push handle (4) annular limiting stand (6), limiting stand (6) with diameter greater than chute (3) width, limiting stand
(6) upper surface is abutted with cover plate (2) lower surface；Described cover plate (2) lower end is provided with groove, groove with the contact position of housing (1)
In sealing ring (11) is installed.
2. linear sliding potentiometer according to claim 1 it is characterised in that：Described housing (1) is cuboid.
3. linear sliding potentiometer according to claim 1 it is characterised in that：Described housing (1) and cover plate (2) are by screw even
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788762.7U CN205943632U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788762.7U CN205943632U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943632U true CN205943632U (en) | 2017-02-08 |
Family
ID=57926069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620788762.7U Expired - Fee Related CN205943632U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935346A (en) * | 2016-07-26 | 2017-07-07 | 成都灯岛科技有限公司 | A kind of linear sliding potentiometer |
-
2016
- 2016-07-26 CN CN201620788762.7U patent/CN205943632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935346A (en) * | 2016-07-26 | 2017-07-07 | 成都灯岛科技有限公司 | A kind of linear sliding potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20180726 |