CN204651218U - A kind of low voltage control system operation knob - Google Patents
A kind of low voltage control system operation knob Download PDFInfo
- Publication number
- CN204651218U CN204651218U CN201520368321.7U CN201520368321U CN204651218U CN 204651218 U CN204651218 U CN 204651218U CN 201520368321 U CN201520368321 U CN 201520368321U CN 204651218 U CN204651218 U CN 204651218U
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- Prior art keywords
- fixed
- contact
- shell
- knob
- descending
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Abstract
The utility model discloses a kind of low voltage control system operation knob, at least comprise knob, shell, potentiometer, position-limit mechanism, circuit switching mechanism and dividing plate, shell is fixedly connected with knob base, position-limit mechanism, circuit switching mechanism, potentiometer is all positioned at shell, dividing plate is fixed on shell, position-limit mechanism and circuit switching mechanism lay respectively at the both sides of dividing plate, potentiometer comprises current potential meter shaft, slide rheostat A and slide rheostat B, slide rheostat A comprises resistor disc A and sliding contact A, slide rheostat B comprises resistor disc B and sliding contact B, the angle that position-limit mechanism rotates for limiting current potential meter shaft, the resistor disc thus limit slippage contact slips away, circuit switching mechanism is for switching external analog current circuit or external voltage analog circuit.This knob structure is simple, easy to operate, can optionally can export two kinds of simulation signals neatly.
Description
Technical field
The utility model relates to low-voltage distribution apparatus art field, is specifically related to a kind of low voltage control system operation knob.
Background technology
In current low voltage control industry, do the experiment needing manual input analog amount, or when industry spot control system needs the occasions such as target setting, mostly adopt potentiometer input.Traditional potentiometer input element does not consider the operational requirements of Industry Control case (cabinet), and (its profile is not designed to executive component on standard low pressure control appliance panel, as indicator light, button etc., to such an extent as to be difficult to potentiometer to be arranged on the enterprising line operate of guidance panel), and the demand of various control signal type switching can not be tackled neatly.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the utility model provides a kind of low voltage control system operation knob, and this knob structure is simple, easy to operate, can optionally can export two kinds of simulation signals neatly.
Realizing the technical scheme that the utility model above-mentioned purpose adopts is:
A kind of low voltage control system operation knob, at least comprise knob, shell, potentiometer, position-limit mechanism, circuit switching mechanism and dividing plate, knob comprises joystick knob and knob base, shell is fixedly connected with knob base, position-limit mechanism, circuit switching mechanism, potentiometer is all positioned at shell, dividing plate is fixed on shell, position-limit mechanism and circuit switching mechanism lay respectively at the both sides of dividing plate, position-limit mechanism comprises location cross bar, two spacer pins and gag lever post, location cross bar is fixed on shell, two spacer pins to be vertically installed on the cross bar of location and symmetrically, potentiometer comprises current potential meter shaft, slide rheostat A and slide rheostat B, one end of current potential meter shaft and joystick knob interference fit, the other end is fixed on dividing plate through the central authorities of location cross bar, gag lever post is flatly fixed in current potential meter shaft, the length of gag lever post is greater than the distance of arbitrary spacer pin to current potential meter shaft, slide rheostat A, slide rheostat A comprises resistor disc A and sliding contact A, slide rheostat B comprises resistor disc B and sliding contact B, resistor disc A and resistor disc B semicircular in shape, resistor disc A and resistor disc B is along the axial distribution of current potential meter shaft, and the projection of potentiometer A and potentiometer B on current potential meter shaft axial direction overlaps completely, sliding contact A and sliding contact B is separately fixed in current potential meter shaft, described circuit switching mechanism comprises plucking number sign switch, spring, two up fixed contacts, two descending fixed contacts, fixed contact fixed frame, two moving contacts, moving contact rack and push rod, fixed contact fixed frame comprises up fixed contact fixed head and descending fixed contact fixed head, up fixed contact fixed head and descending fixed contact fixed head are separately fixed on shell, two up fixed contacts are fixed on up fixed contact fixed head, two descending fixed contacts are fixed on descending fixed contact fixed head, toggle switch is fixed on shell, up fixed contact fixed head is near dividing plate, descending fixed contact fixed head is near plucking number sign switch, push rod contacts with plucking number sign switch with descending fixed contact fixed head through up fixed contact fixed head, push rod respectively with up fixed contact fixed head and descending fixed contact fixed head matched in clearance, moving contact rack is in the shape of the letter V, moving contact rack is between up fixed contact fixed head and descending fixed contact fixed head, two moving contacts are individually fixed in the both sides of moving contact rack, the tip of moving contact rack is provided with through hole, push rod through through hole and with moving contact rack matched in clearance, push rod is provided with compressing tablet, spring housing is on push rod, and spring is between compressing tablet and moving contact rack tip.
Compared with prior art, its beneficial effect and advantage are the utility model:
The design of this knob structure is ingenious, easy to use, can be regulated the resistance value of external analog circuit easily, and switch external voltage analog circuit or current analog circuit easily by plucking number sign switch by the joystick knob of knob.
Accompanying drawing explanation
The structural representation of the low voltage control system operation knob that Fig. 1 provides for the utility model.
Fig. 2 is the partial enlarged drawing of I in Fig. 1.
Wherein, 1-joystick knob, 2-current potential meter shaft, 3-resistor disc A, 4-resistor disc B, 5-sliding contact A, 6-sliding contact B, 7-shell, 8-dividing plate, 9-locates cross bar, 10-spacer pin, 11-gag lever post, 12-plucking number sign switch, 13-spring, the up fixed contact of 14-, the descending fixed contact of 15-, 16-moving contact, 17-moving contact rack, the up fixed contact fixed head of 18-, the descending fixed contact fixed head of 19-, 20-compressing tablet, 21-push rod, 22-potentiometer, 23-knob base.
Embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described.
The structure of the low voltage control system operation knob that the utility model provides as shown in Figure 1, this knob at least comprises knob, shell 7, potentiometer 22, position-limit mechanism, circuit switching mechanism and dividing plate 8, knob comprises joystick knob 1 and knob base 23, shell 1 is fixedly connected with knob base 23, position-limit mechanism, circuit switching mechanism, potentiometer is all positioned at shell 7, dividing plate 8 is fixed on shell, position-limit mechanism and circuit switching mechanism lay respectively at the both sides of dividing plate, position-limit mechanism comprises location cross bar 9, two spacer pins 10 and gag lever post 11, location cross bar 9 is fixed on shell, two spacer pins 10 to be vertically installed on the cross bar 9 of location and symmetrically, potentiometer 22 comprises current potential meter shaft 2, slide rheostat A and slide rheostat B, one end of current potential meter shaft 2 and joystick knob 1 interference fit, the other end is fixed on dividing plate 8 through the central authorities of location cross bar 9, gag lever post 11 is flatly fixed in current potential meter shaft 2, the length of gag lever post 11 is greater than the distance of arbitrary spacer pin to current potential meter shaft.Slide rheostat A comprises resistor disc A3 and sliding contact A5, slide rheostat B comprises resistor disc B4 and sliding contact B6, resistor disc A3 and resistor disc B4 semicircular in shape, resistor disc A and resistor disc B is along the axial distribution of current potential meter shaft, and the projection of potentiometer A and potentiometer B on current potential meter shaft axial direction overlaps completely, sliding contact A5 and sliding contact B6 is separately fixed in current potential meter shaft.The effect of position-limit mechanism avoids sliding contact to slip away in sliding process resistor disc, its spacing principle is: the sliding trace due to sliding contact A and sliding contact B is identical comparatively speaking, for sliding contact A, when rotating joystick knob, current potential meter shaft is rotated, current potential meter shaft drives sliding contact A to rotate, when sliding contact A rotates the edge to resistor disc A, be rotated further because spacer pin has blocked gag lever post, the gag lever post afterpotential meter shaft that stops operating stops operating, thus sliding contact A is stopped operating.
Described circuit switching mechanism comprises plucking number sign switch 12, spring 13, two up fixed contacts 14, two descending fixed contacts 15, fixed contact fixed frame, two moving contacts 16, moving contact rack 17 and push rod 21, fixed contact fixed frame comprises up fixed contact fixed head 18 and descending fixed contact fixed head 19, up fixed contact fixed head 18 and descending fixed contact fixed head 19 are separately fixed on shell, two up fixed contacts 14 are fixed on up fixed contact fixed head 18, two descending fixed contacts 15 are fixed on descending fixed contact fixed head 19, toggle switch 12 is fixed on shell, up fixed contact fixed head 18 is near dividing plate, descending fixed contact fixed head 19 is near plucking number sign switch, push rod 21 contacts with plucking number sign switch 11 with descending fixed contact fixed head through up fixed contact fixed head, push rod 21 respectively with up fixed contact fixed head 18 and descending fixed contact fixed head 19 matched in clearance, moving contact rack 17 is in the shape of the letter V, moving contact rack 17 is between up fixed contact fixed head and descending fixed contact fixed head, two moving contacts are individually fixed in the both sides of moving contact rack, the tip of moving contact rack 17 is provided with through hole, push rod 21 through through hole and with moving contact rack 17 matched in clearance, push rod is provided with compressing tablet 20, spring 13 is enclosed within push rod 21, and spring 13 is between compressing tablet 20 and moving contact rack 17 tip.
This knob can be arranged on the gauge orifice on guidance panel, is become by the diameter design of shell and matches with standard installation hole footpath, can be directly installed on control panel.
The operation principle of the low voltage control system operation knob that the utility model provides is as follows:
First rotate rotary handle, current potential meter shaft rotates, and drive sliding contact A and sliding contact B to slide, sliding contact A slides on resistor disc A, and sliding contact B slides on resistor disc B, thus changes the resistance value of resistor disc A and resistor disc B.Two up fixed contacts are connected with the both sides of resistor disc A respectively by wire, two descending fixed contacts are connected by the both sides of wire respectively at resistor disc B, when plucking number sign switch is stirred left, push rod contacts with plucking number sign switch, the non-pressurized of spring, two moving contacts respectively fixed contact descending with two contact, corresponding current analog circuit is connected, output current analog signal, when plucking number sign switch is stirred to the right, plucking number sign switch withstands push rod, spring pressurized, connecting rod moves upward, thus make compressing tablet upwardly spring, spring is moving contact rack upwardly, thus two moving contacts are contacted with two up fixed contacts, corresponding voltage analog circuits is connected, output voltage analog signal.
Claims (1)
1. a low voltage control system operation knob, at least comprise knob, knob comprises joystick knob (1) and knob base (23), it is characterized in that: also comprise shell (7), potentiometer (22), position-limit mechanism, circuit switching mechanism and dividing plate (8), shell (1) is fixedly connected with knob base (23), position-limit mechanism, circuit switching mechanism, potentiometer is all positioned at shell (7), dividing plate (8) is fixed on shell, position-limit mechanism and circuit switching mechanism lay respectively at the both sides of dividing plate, position-limit mechanism comprises location cross bar (9), two spacer pins (10) and gag lever post (11), location cross bar (9) is fixed on shell, it is upper and symmetrical that two spacer pins (10) are vertically installed on location cross bar (9), potentiometer (22) comprises current potential meter shaft (2), slide rheostat A and slide rheostat B, one end of current potential meter shaft (2) and joystick knob (1) interference fit, the other end is fixed on dividing plate (8) through the central authorities of location cross bar (9), gag lever post (11) is flatly fixed in current potential meter shaft (2), the length of gag lever post (11) is greater than the distance of arbitrary spacer pin to current potential meter shaft, slide rheostat A comprises resistor disc A (3) and sliding contact A (5), slide rheostat B comprises resistor disc B (4) and sliding contact B (6), resistor disc A (3) and resistor disc B (4) semicircular in shape, resistor disc A and resistor disc B is along the axial distribution of current potential meter shaft, and the projection of potentiometer A and potentiometer B on current potential meter shaft axial direction overlaps completely, sliding contact A (5) and sliding contact B (6) is separately fixed in current potential meter shaft, described circuit switching mechanism comprises plucking number sign switch (12), spring (13), two up fixed contacts (14), two descending fixed contacts (15), fixed contact fixed frame, two moving contacts (16), moving contact rack (17) and push rod (21), fixed contact fixed frame comprises up fixed contact fixed head (18) and descending fixed contact fixed head (19), up fixed contact fixed head (18) and descending fixed contact fixed head (19) are separately fixed on shell, two up fixed contacts (14) are fixed on up fixed contact fixed head (18), two descending fixed contacts (15) are fixed on descending fixed contact fixed head (19), toggle switch (12) is fixed on shell, up fixed contact fixed head (18) is near dividing plate, descending fixed contact fixed head (19) is near plucking number sign switch, push rod (21) contacts with plucking number sign switch (11) with descending fixed contact fixed head through up fixed contact fixed head, push rod (21) respectively with up fixed contact fixed head (18) and descending fixed contact fixed head (19) matched in clearance, moving contact rack (17) is in the shape of the letter V, moving contact rack (17) is between up fixed contact fixed head and descending fixed contact fixed head, two moving contacts are individually fixed in the both sides of moving contact rack, the tip of moving contact rack (17) is provided with through hole, push rod (21) through through hole and with moving contact rack (17) matched in clearance, push rod is provided with compressing tablet (20), spring (13) is enclosed within push rod (21), and spring (13) is positioned between compressing tablet (20) and moving contact rack (17) tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368321.7U CN204651218U (en) | 2015-05-29 | 2015-05-29 | A kind of low voltage control system operation knob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368321.7U CN204651218U (en) | 2015-05-29 | 2015-05-29 | A kind of low voltage control system operation knob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651218U true CN204651218U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520368321.7U Expired - Fee Related CN204651218U (en) | 2015-05-29 | 2015-05-29 | A kind of low voltage control system operation knob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204651218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461449A (en) * | 2017-07-19 | 2017-12-12 | 江苏理工学院 | A kind of hydraulic accumulation energy damping regulation semi-active suspension system |
| CN108376625A (en) * | 2018-03-01 | 2018-08-07 | 安阳师范学院 | A kind of electronic switch of rotatable control |
-
2015
- 2015-05-29 CN CN201520368321.7U patent/CN204651218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461449A (en) * | 2017-07-19 | 2017-12-12 | 江苏理工学院 | A kind of hydraulic accumulation energy damping regulation semi-active suspension system |
| CN107461449B (en) * | 2017-07-19 | 2019-04-09 | 江苏理工学院 | A kind of hydraulic accumulation energy damping adjusting semi-active suspension system |
| CN108376625A (en) * | 2018-03-01 | 2018-08-07 | 安阳师范学院 | A kind of electronic switch of rotatable control |
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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: 20150916 |