CN204029688U - There is the rotary switch of Self-resetting function - Google Patents
There is the rotary switch of Self-resetting function Download PDFInfo
- Publication number
- CN204029688U CN204029688U CN201420455344.7U CN201420455344U CN204029688U CN 204029688 U CN204029688 U CN 204029688U CN 201420455344 U CN201420455344 U CN 201420455344U CN 204029688 U CN204029688 U CN 204029688U
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- CN
- China
- Prior art keywords
- thumb wheel
- swing arm
- pedestal
- hub
- spacer
- 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.)
- Withdrawn - After Issue
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a kind of rotary switch with Self-resetting function, and its structure is cross-under swing arm in pedestal, and the upper termination knob of described swing arm, is connected to blade and lower plunger in the lower end of described swing arm; On the intracavity sidewall of described pedestal, interlocking has symmetrically arranged two empiecements, is connected to extension spring between a bending edge on each empiecement and described blade; The bottom of described pedestal is provided with base plate, the bottom surface of described base plate is provided with locating ring, in described locating ring, be provided with the spacer limiting swing arm rotational angle in ring, the center square hole cross-under of described spacer is on described lower plunger; The bottom surface of described spacer is provided with thumb wheel assembly.The utility model can make swing arm assembly after switch turns is connected and automatically reset after external force is eliminated; be equipped with distinctive detent mechanism again; the location that the restriction of knob angle and knob turn over angle can be realized, and the contact process of movable contact spring and quiet contact chip in thumb wheel assembly is determined and protected.
Description
Technical field
The utility model relates to a kind of electric switch, specifically a kind of rotary switch with Self-resetting function.
Background technology
Current rotary switch product, does not have the automatically reset function of mechanical type mostly.In many electrical control equipments, by the connecting and disconnecting of switch contact, realize the transmission of signal, break-make or circuit conversion.Because adopted rotary switch can not carry out mechanical automatically reseting, therefore, the controlling functions that many electrical control equipments should have just can not realize freely, or by complicated circuit design, realizes the function of corresponding Signal transmissions, break-make or circuit conversion.And design cost certainly will be increased like this, improve the complexity of circuit structure.
Utility model content
The purpose of this utility model is just to provide a kind of rotary switch with Self-resetting function, to solve the problem that rotary switch does not have mechanical resetting function.
The utility model is achieved in that a kind of rotary switch with Self-resetting function, in the pedestal of bottom opening, cross-under has swing arm, the upper end of described swing arm connects knob after passing the sleeve pipe being fixed in described pedestal top, blade is connected with in the lower end of described swing arm, the two ends of described blade are the bending edge of downward bending, being connected with cross section in the bottom surface of described blade is square lower plunger, and the axial line that described lower plunger is positioned at described swing arm extends the end mouth of described pedestal downwards; On the intracavity sidewall of described pedestal, interlocking has symmetrically arranged two empiecements, and a bending edge on each described empiecement and described blade is adjacent, and is connected with adjacent bending edge by extension spring; The bottom of described pedestal is provided with base plate, the bottom surface of described base plate is provided with locating ring, in described locating ring, be provided with the spacer limiting swing arm rotational angle in ring, the center square hole cross-under of described spacer is on described lower plunger; The bottom surface of described spacer is provided with thumb wheel assembly;
Described thumb wheel assembly comprises hub, the thumb wheel be arranged in described hub, hide described hub end face upper cover plate and hide lower cover in described hub bottom surface; Have still slot at the end face of described hub, the pin of quiet contact chip is plugged in described still slot, and the terminals of quiet contact chip stretch out thumb wheel assembly from the gap between described hub and described upper cover plate; Have inserting groove in the bottom surface of described hub along intracavity sidewall, the pin of contact chip is plugged in described inserting groove, and the terminals of contact chip stretch out thumb wheel assembly from the gap between described hub and described lower cover; Columniform central boss is shaped with at the end face of described thumb wheel, described central boss is plugged in the center hole of described hub, in described central boss, have square opening and prism, the lower end of described lower plunger is plugged in the square opening and prism of described central boss, and described thumb wheel can be driven to rotate; Paste system one section of movable contact spring at the end face edge of described thumb wheel, the pin of described movable contact spring and described quiet contact chip keeps in touch; In the middle part of the outer of described movable contact spring, be shaped with the contact of evagination, after described thumb wheel rotate in place, namely the revealed section of the pin of described contact chip contacts with described contact.
In described locating ring, ring is symmetrically arranged with double wedge in two groups, often in group, double wedge has two interior double wedges, and two interior double wedges are splayed arrangement; The outer of described spacer is provided with two outer double wedges axisymmetrically, and a described outer double wedge extend between two described interior double wedges in a group, with the restriction by turning over angle to spacer, realizes the restriction to swing arm rotational angle.
In described locating ring, ring is symmetrically arranged with two interior double wedges, two gap slots are had symmetrically at the edge of described spacer, a described interior double wedge extend in a described gap slot, with the restriction by turning over angle to spacer, realizes the restriction to swing arm rotational angle.
Be shaped with jack hole opposing upper and lower respectively at the edge of described pedestal, described base plate, described locating ring and described thumb wheel assembly, shank of screw, through after described pedestal, described base plate, described locating ring and described thumb wheel assembly, is fixedly connected with nut.
The utility model forms a kind of Self-resetting rotary switch open in usual, extension spring is when free state, switch is in off-state, when turn knobs, drive swing arm assembly to rotate thereupon, two extension springs are stretched simultaneously, and the moving contacting plate in thumb wheel assembly contacts with quiet contact chip, and namely rotary switch is in conducting state; After the external force pulling knob disappears, two extension spring retractions, drive swing arm assembly and knob to be turned back to initial condition position, moving contacting plate in thumb wheel assembly and quiet contact chip are separated, rotary switch disconnects, and completes an actuation cycle of switch, realizes switching circuit conversion.
Mechanical operating mechanism of the present utility model is two extension springs be connected between blade and pedestal, utilize extension spring to carry out bidirectional rotation stretching between swing arm and pedestal, make swing arm assembly after switch turns is connected and can automatically reset under the effect in extension spring after external force is eliminated.Distinctive detent mechanism, utilize coordinating of spacer and locating ring, swing arm assembly can only be rotated in a specific angular range, realize the location that the restriction of knob angle and knob turn over angle thus, and the contact process of movable contact spring and quiet contact chip in thumb wheel assembly is determined and protected; Like this; on the one hand, not only can avoid because of turn over angle excessive or too small, make movable contact spring can not contact with quiet contact chip or contact after but also the situation of the misoperation mutually departed from occur, on the other hand; protection can be implemented, to extend the useful life of rotary switch again to the contact on movable contact spring.Movable contact spring in the utility model and thumb wheel are riveted into one, implement to seal by upper and lower two silicone rubber O-rings between sleeve pipe on swing arm assembly and pedestal, rubber ring by being bonded in base top surface between pedestal and device panel implements sealing, and the utility model can be made thus to realize installation on equipment under water and use.Switching knob can adopt luminescent material injection mo(u)lding, is convenient to the accurate identification under dark surrounds.
The utility model is an important Signal transmissions and control device in equipment complete machine, by the connecting and disconnecting of switch contact, realizes the break-make of signal or the conversion of circuit.The utility model can be widely used in the various electrical control equipments of needs moment on-off circuit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is axonometric drawing of the present utility model.
In figure: 1, nut, 2, lower cover, 3, thumb wheel, 4, contact chip, 5, hub, 6, upper cover plate, 7, locating ring, 8, base plate, 9, pedestal, 10, shank of screw, 11, sleeve pipe, 12, swing arm, 13, blade, 14, extension spring, 15, empiecement, 16, lower plunger, 17, interior double wedge, 18, spacer, 19, still slot, 20, quiet contact chip, 21, movable contact spring, 22, contact, 23, knob, 24, silicone rubber O-ring, 25, rubber ring.
Embodiment
As shown in Figure 1 and Figure 2, pedestal 9 is the Cylindrical housing structure of stainless steel, its bottom opening, top center is shaped with a upright sleeve pipe 11 integratedly, the intracavity sidewall of pedestal 9 is distributed with a loop step, is inlaid with centered by two empiecements, 15, two empiecements 15 is symmetrical arranged at step punishment cloth, the sidewall of pedestal inner chamber is also evenly equipped with the jack hole of three up/down perforations, in order to the shank of screw that cross-under is fastening.Be shaped with a circle circular groove at the end face of pedestal 9, in circular groove, be bonded with rubber ring 25, to implement sealing between the device panel installed.In pedestal 9, cross-under has swing arm 12, and the upper end of swing arm 12 passes the sleeve pipe 11 on pedestal 9, and traversing through end is connected with knob 23.Upper and lower two silicone rubber O-rings 24 are connected to, to seal cross-under gap between swing arm 12 and sleeve pipe 11.Blade 13 is connected with integratedly in the lower end of swing arm 12, the two ends of blade 13 are the bending edge (Fig. 2) of downward bending, being connected with cross section in the bottom surface of blade 13 is square lower plunger 16, and lower plunger 16 is positioned on the axial line of swing arm 12, and extends the end mouth of pedestal 9 downwards.Each empiecement 15 is adjacent with a bending edge on blade 13, is connected to an extension spring 14, forms automatically reset mechanical structure between a bending edge adjacent on an empiecement 15 and blade 13.
In Fig. 2, the bottom of pedestal 9 is provided with circular bottom plate 8, has a circular hole at the center of base plate 8, pass for lower plunger 16.Be provided with the locating ring 7 of annular in the bottom surface of base plate 8, in locating ring 7, the upper heart of ring is provided with double wedge in two groups symmetrically, and often in group, double wedge includes the arrangement in splayed of the interior double wedge 17 of two interior double wedges 17, two.In locating ring 7, in ring, spacer 18 is set, spacer 18 is rectangle lamellar body, its center has square hole, in order to cross-under lower plunger 16, the outer of spacer 18 is provided with two outer double wedges with certain drift angle axisymmetrically, and an outer double wedge extend between two interior double wedges 17 in a group.Formed thus and a kind ofly limit swing arm 12 rotational angle and determine the detent mechanism that maximum turn of swing arm is spent.
Another version of detent mechanism ring is symmetrically arranged with two in locating ring 7 and points to double wedge in the center of circle, two gap slots are had symmetrically at the edge of spacer 18, an interior double wedge extend in a gap slot, spacer 18 turn over the blocking position that position is gap slot.
In Fig. 1, the bottom surface of spacer 18 is provided with thumb wheel assembly, the fixture in thumb wheel assembly is fixedly connected with pedestal 9, and the rotating part in thumb wheel assembly connects with swing arm 16.
As shown in Figure 2, thumb wheel assembly comprise hub 5, the thumb wheel 3 be arranged in hub 5, hide hub 5 end face upper cover plate 6 and hide lower cover 2 etc. in hub 5 bottom surface.Be light face at the end face of hub 5, it have four still slots 19 along a circumference uniform distribution, in order to install quiet contact chip 20.Still slot 19, longitudinally through the top of hub 5, communicates with the inner chamber of hub.Quiet contact chip 20 comprises pin and terminals, and the two is in " 7 " font.The pin of quiet contact chip 20 is plugged in a still slot 19, and the terminals of quiet contact chip 20 stretch out thumb wheel assembly from the gap between hub 5 and upper cover plate 6.
In Fig. 1, have inserting groove in the bottom surface of hub 5 along intracavity sidewall, in order to install contact chip 4.Contact chip 4 comprises pin and terminals, and pin is V-shaped, and terminals right angle extends in one end.The pin of contact chip 4 is plugged in inserting groove, and the terminals of contact chip 4 stretch out thumb wheel assembly from the gap between hub 5 and lower cover 2.
In Fig. 2, be shaped with columniform central boss at the end face of thumb wheel 3, central boss is plugged in the center hole of hub 5, in this central boss, have square opening and prism, the lower end of lower plunger 16 is plugged on (Fig. 1) in the square opening and prism of this central boss, rotates to drive thumb wheel 3.
Paste system one section of movable contact spring 21 at the end face edge of thumb wheel 3, movable contact spring 21 keeps close contact with the pin of quiet contact chip 20.In the middle part of the outer of movable contact spring 21, be shaped with the butt contact 22 of an evagination, after thumb wheel 3 rotate in place, namely the revealed section of the pin on contact chip 4 contacts with this contact 22, realizes the rotation conducting of rotary switch.
The edge of pedestal 9, base plate 8, locating ring 7 and thumb wheel assembly is shaped with jack hole opposing upper and lower respectively, shank of screw 10 is through after pedestal 9, base plate 8, locating ring 7 and thumb wheel assembly, be fixedly connected with nut 1, realize being fixedly connected with of each fixed part of Switch main body.The excess length of shank of screw 10 outside the nut that spins is greater than 1mm.
Thumb wheel assembly can with strengthening nylon 1010 injection mo(u)lding.The life-span of extension spring 14 decides the mechanical endurance of rotary switch, extension spring two ends hook is between mold insert 15 and blade 13, the acute angle of hook junction answers abate, diameter mold insert 15 and blade 13 being linked up with the pore that matches with extension spring should expand, make the hook of extension spring energy in hole freely movable, also low temperature grease will be coated, to reduce the wearing and tearing of extension spring hook in rotation process.
Claims (4)
1. one kind has the rotary switch of Self-resetting function, it is characterized in that, in the pedestal of bottom opening, cross-under has swing arm, the upper end of described swing arm connects knob after passing the sleeve pipe being fixed in described pedestal top, blade is connected with in the lower end of described swing arm, the two ends of described blade are the bending edge of downward bending, and being connected with cross section in the bottom surface of described blade is square lower plunger, and the axial line that described lower plunger is positioned at described swing arm extends the end mouth of described pedestal downwards; On the intracavity sidewall of described pedestal, interlocking has symmetrically arranged two empiecements, and a bending edge on each described empiecement and described blade is adjacent, and is connected with adjacent bending edge by extension spring; The bottom of described pedestal is provided with base plate, the bottom surface of described base plate is provided with locating ring, in described locating ring, be provided with the spacer limiting swing arm rotational angle in ring, the center square hole cross-under of described spacer is on described lower plunger; The bottom surface of described spacer is provided with thumb wheel assembly;
Described thumb wheel assembly comprises hub, the thumb wheel be arranged in described hub, hide described hub end face upper cover plate and hide lower cover in described hub bottom surface; Have still slot at the end face of described hub, the pin of quiet contact chip is plugged in described still slot, and the terminals of quiet contact chip stretch out thumb wheel assembly from the gap between described hub and described upper cover plate; Have inserting groove in the bottom surface of described hub along intracavity sidewall, the pin of contact chip is plugged in described inserting groove, and the terminals of contact chip stretch out thumb wheel assembly from the gap between described hub and described lower cover; Columniform central boss is shaped with at the end face of described thumb wheel, described central boss is plugged in the center hole of described hub, in described central boss, have square opening and prism, the lower end of described lower plunger is plugged in the square opening and prism of described central boss, and described thumb wheel can be driven to rotate; Paste system one section of movable contact spring at the end face edge of described thumb wheel, the pin of described movable contact spring and described quiet contact chip keeps in touch; In the middle part of the outer of described movable contact spring, be shaped with the contact of evagination, after described thumb wheel rotate in place, namely the revealed section of the pin of described contact chip contacts with described contact.
2. the rotary switch with Self-resetting function according to claim 1, is characterized in that, in described locating ring, ring is symmetrically arranged with double wedge in two groups, and often in group, double wedge has two interior double wedges, and two interior double wedges are splayed arrangement; The outer of described spacer is provided with two outer double wedges axisymmetrically, and a described outer double wedge extend between two described interior double wedges in a group.
3. the rotary switch with Self-resetting function according to claim 1, it is characterized in that, in described locating ring, ring is symmetrically arranged with two interior double wedges, has two gap slots at the edge of described spacer symmetrically, a described interior double wedge extend in a described gap slot.
4. the rotary switch with Self-resetting function according to claim 1, it is characterized in that, jack hole opposing upper and lower is shaped with respectively at the edge of described pedestal, described base plate, described locating ring and described thumb wheel assembly, shank of screw, through after described pedestal, described base plate, described locating ring and described thumb wheel assembly, is fixedly connected with nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455344.7U CN204029688U (en) | 2014-08-13 | 2014-08-13 | There is the rotary switch of Self-resetting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455344.7U CN204029688U (en) | 2014-08-13 | 2014-08-13 | There is the rotary switch of Self-resetting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029688U true CN204029688U (en) | 2014-12-17 |
Family
ID=52069522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455344.7U Withdrawn - After Issue CN204029688U (en) | 2014-08-13 | 2014-08-13 | There is the rotary switch of Self-resetting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157500A (en) * | 2014-08-13 | 2014-11-19 | 石家庄八五零电子有限公司 | Rotary switch possessing self-resetting function |
| CN111103533A (en) * | 2019-12-12 | 2020-05-05 | 常州机电职业技术学院 | Vision-based ten-position rotary dial switch reset system and reset method |
-
2014
- 2014-08-13 CN CN201420455344.7U patent/CN204029688U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157500A (en) * | 2014-08-13 | 2014-11-19 | 石家庄八五零电子有限公司 | Rotary switch possessing self-resetting function |
| CN111103533A (en) * | 2019-12-12 | 2020-05-05 | 常州机电职业技术学院 | Vision-based ten-position rotary dial switch reset system and reset method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |