CN220085900U - Stable rotary coding switch - Google Patents
Stable rotary coding switch Download PDFInfo
- Publication number
- CN220085900U CN220085900U CN202321735594.1U CN202321735594U CN220085900U CN 220085900 U CN220085900 U CN 220085900U CN 202321735594 U CN202321735594 U CN 202321735594U CN 220085900 U CN220085900 U CN 220085900U
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- code disc
- elastic
- base
- shaft sleeve
- fixed
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- 239000002184 metal Substances 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model provides a stable rotary coding switch, which comprises a shaft sleeve, wherein the bottom surface of the shaft sleeve is provided with a sinking cavity, and a wave plate is fixed on the inner bottom surface of the sinking cavity; the code disc is concentrically arranged in the sinking cavity, the code chips are distributed on the bottom surface of the code disc, and the top surface of the code disc is provided with a first wave tooth surface which is circumferentially arranged; the base is fixed at the bottom end of the shaft sleeve, and the top surface of the base is provided with an electric brush; a push switch assembly fixed at the bottom end of the base; the shaft handle axially movably penetrates through the shaft sleeve, the code disc and the base, and at least one matching plane for limiting relative rotation is arranged between the shaft handle and the code disc; the elastic component is arranged on the shaft sleeve and radially abuts against the outer side wall of the code disc; and the elastic supporting piece is arranged between the base and the pressing switch component, one end of the elastic supporting piece is fixed, and the other end of the elastic supporting piece radially extends and abuts against the bottom end of the shaft handle. The shaft handle is limited through the elastic component and the elastic supporting piece, so that the problem of shaking of the shaft handle is solved.
Description
Technical Field
The utility model relates to the technical field of coding switches, in particular to a stable rotary coding switch.
Background
The rotary coding switch structure generally comprises a shaft handle, a rotary positioning assembly, a coding assembly and a pressing switch assembly. When the rotary type rotary encoder works, the shaft handle drives the code disc of the coding component to rotate so as to output pulse signals, meanwhile, the rotary positioning component generates clear rotary and positioning handfeel, and the pressing switch part can output switch signals by pressing the shaft handle. When the rotary coding switch is applied to a product, the outer end of the shaft handle is also required to be sleeved with a knob with larger diameter, and as the shaft handle needs to rotate and move along the axial pressing direction, a certain movable gap is needed to exist between the shaft handle and the coding component and between the shaft handle and the pressing switch component, the gap can cause the shaft handle to swing to shake, the shaking amplitude can be amplified by the knob with larger diameter, the texture of the product is affected, and the shaking can even damage the stability of the internal structure of the coding switch; there is currently no better solution to this problem.
Disclosure of Invention
The utility model aims to provide a stable rotary coding switch so as to solve the problem of shaft handle shaking.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the stable rotary coding switch comprises a shaft sleeve, wherein the bottom surface of the shaft sleeve is provided with a sunk cavity which is axially concave, and an elastic wave plate is fixed on the inner bottom surface of the sunk cavity; the cylindrical code disc is concentrically arranged in the sinking cavity, code chips are distributed on the bottom surface of the code disc around the circumference, the top surface of the code disc is provided with a first wave tooth surface arranged around the circumference, and the first wave tooth surface is used for being in abutting contact with the wave chip to generate rotary positioning handfeel; the base is fixed at the bottom end of the shaft sleeve, and the top surface of the base is provided with an electric brush contacted with the chip; the pressing switch assembly is fixed at the bottom end of the base; the shaft handle axially movably penetrates through the shaft sleeve, the code disc and the base, and at least one matching plane limiting relative rotation is arranged between the shaft handle and the code disc so as to drive the code disc to synchronously rotate; the elastic component is arranged on the shaft sleeve and radially props against the outer side wall of the code disc; and the elastic supporting piece is arranged between the base and the pressing switch assembly, one end of the elastic supporting piece is fixed, and the other end of the elastic supporting piece radially extends and abuts against the bottom end of the shaft handle.
In one preferred embodiment, the outer side wall of the code wheel has a second wave tooth surface arranged around the circumference, and the wave crest of the second wave tooth surface is an arc surface.
Preferably, one side of the sinking cavity on the bottom surface of the shaft sleeve is further provided with a straight groove, the middle of the groove is radially communicated with the sinking cavity, and the elastic component comprises a metal elastic sheet which is arranged in the groove along the length direction and is fixed at two ends, and a propping part which is arranged in the middle of the metal elastic sheet and radially propped against the outer side wall of the code disc.
In a preferred scheme, two ends of the metal elastic sheet are respectively formed into an elbow with an elastic bending space, and the elbow is tightly clamped and fixed in the groove.
Preferably, the abutting portion is a plastic member fixed on the metal elastic sheet, and one side of the abutting portion contacting the code disc is an arc surface.
Preferably, the push switch assembly comprises a switch base with a switch contact on the top surface and a dome supported on the top surface of the switch base.
In one preferred embodiment, the elastic supporting piece is hollowed and formed on a supporting plate.
Preferably, the support plate is a plastic member, the bottom edge of the support plate is provided with a support protruding edge arranged around the circumference, the support protruding edge is supported on the top edge of the dome, and the bottom surface of the elastic support plate is in propping contact with the top end of the dome.
Preferably, the bottom surface of the elastic supporting piece is provided with a protruding part which is in abutting contact with the top end of the dome.
In a preferred embodiment, a positioning column protrudes from the center of the top surface and/or the bottom surface of the code wheel, and correspondingly, the shaft sleeve and/or the base has a positioning recess with a diameter adapted to the diameter of the positioning column.
The beneficial effects are that: the elastic component is arranged, so that a proper radial thrust can be generated on the code disc, the code disc slightly deviates radially and contacts with the shaft handle, and the shaking of the shaft handle caused by radial clearance can be eliminated; in summary, when static, the shaft handle is limited through the elastic component and the elastic supporting piece together, so that the problem of shaft handle shaking is solved.
Drawings
The utility model will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a schematic diagram of an exploded view of a coding switch according to an embodiment;
FIG. 2 is a schematic view of the bottom surface structure of a shaft sleeve according to an embodiment;
FIG. 3 is a schematic diagram of a bottom structure of a code wheel according to an embodiment;
FIG. 4 is a schematic top structure of a code wheel according to an embodiment;
FIG. 5 is a schematic view of the structure of an elastic component in an embodiment;
FIG. 6 is a schematic view of an installation structure of the code wheel and the elastic component in the shaft sleeve according to the embodiment;
fig. 7 is a schematic structural view of a support plate in the embodiment.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
referring to fig. 1 to 7, in this embodiment, a stable rotary coding switch includes a shaft sleeve 1, a bottom surface of the shaft sleeve 1 has an axially concave sinking cavity 11, an elastic wave plate 12 is fixed on an inner bottom surface of the sinking cavity 11, wherein the wave plate 12 is a conventional structure of the product, in this embodiment, the wave plate 12 is a metal stamping part, and a top part of the wave plate is fixed at an inner bottom of the sinking cavity 11 and extends downwards to form an elastic clamping point 121; the cylindrical code disc 2 is concentrically arranged in the sinking cavity 11, metal code chips 21 are distributed on the bottom surface of the code disc 2 around the circumference, a first wave tooth surface 22 is arranged on the top surface of the code disc 2 around the circumference, and the first wave tooth surface 22 is used for being in abutting contact with the clamping point 121 of the wave blade 12 so as to generate rotary positioning handfeel; the base 3 is fixed at the bottom end of the shaft sleeve 1, and the top surface of the base 3 is provided with an electric brush 31 contacted with the code piece 21; a push switch assembly 4, wherein the push switch assembly 4 is fixed at the bottom end of the base 3; the shaft handle 5 axially movably passes through the shaft sleeve 1, the code disc 2 and the base 3, at least one matching plane limiting relative rotation is arranged between the shaft handle 5 and the code disc 2 so as to drive the code disc 2 to synchronously rotate, in the embodiment, the shaft handle 5 is provided with two matching planes which are oppositely arranged, so that the lower section of the shaft handle 5 forms a flat shaft, and the center of the code disc 2 is provided with an assembly hole 200 which is matched with the flat shaft; the elastic component 6 is arranged on the shaft sleeve 1 and radially abuts against the outer side wall of the code wheel 2; and the elastic supporting piece 7 is arranged between the base 3 and the pressing switch assembly 4, one end of the elastic supporting piece 7 is fixed, and the other end of the elastic supporting piece extends radially and abuts against the bottom end of the shaft handle 5.
When the shaft handle 5 is rotated, the shaft handle 5 drives the code wheel 2 to synchronously rotate, the electric brush 31 contacts with the code pieces 21 to output pulse signals, and due to the arrangement of the wave plate 12, in the rotation process of the shaft handle 5, the wave plate 12 is in propping contact with the first wave tooth surface 22 to generate clear rotary positioning hand feeling, and the higher the pressure of the wave plate 12 is, the clearer the hand feeling is, and the more stable and accurate the positioning of the rotation position of the shaft handle 5 is; the pressing of the shaft 5 can output a switching signal through the pressing switch assembly 4, the pressing switch assembly 4 comprises an elastic member which is in abutting contact with the shaft 5, and after the pressing is completed, the shaft 5 is axially reset through the elastic member. The elastic component 6 is arranged, so that a proper radial thrust can be generated on the code disc 2, the code disc 2 slightly deflects radially and contacts the shaft handle 5, the shaking of the shaft handle 5 caused by a radial clearance can be eliminated, and the clamping stagnation can not be caused when the shaft handle 5 is axially pressed; on the other hand, the elastic supporting piece 7 is propped against the bottom end of the shaft handle 5, so that the shaft handle 5 can be limited to slightly shift axially in a static state, and friction force can be provided for the bottom end of the shaft handle 5 to prevent the shaft handle 5 from shaking; in summary, in the static state, the shaft handle 5 is limited by the elastic component 6 and the elastic supporting piece 7, so that the problem of shaking of the shaft handle 5 is solved.
In this embodiment, the outer side wall of the code wheel 2 has a second wave tooth surface 23 disposed around the circumference, and the peak of the second wave tooth surface 23 is an arc surface. When the code wheel 2 rotates along with the shaft handle 5, the second wave tooth surface 23 can reduce the friction force between the code wheel 2 and the elastic component 6, so as to avoid influencing the rotation hand feeling of the shaft handle 5. When the code wheel 2 is provided with the second wave tooth surface 23 with the wave crest being the arc surface, the friction force between the code wheel 2 and the elastic component 6 in the rotation process can be reduced, the code wheel 2 can be continuously contacted with the elastic component 6, and continuous radial thrust is provided for the code wheel 5, so that the shaft handle 5 is attached to one side between the code wheel 2, and the stability of the shaft handle 5 in the rotation process is ensured.
In this embodiment, a straight groove 13 is further provided on one side of the sinking cavity 11 on the bottom surface of the sleeve 1, the middle portion of the groove 13 is radially communicated with the sinking cavity 11, and the elastic component 6 includes a metal elastic sheet 61 disposed in the groove 13 along the length direction and having two fixed ends, and a propping portion 62 disposed in the middle portion of the metal elastic sheet 61 and radially propping against the outer side wall of the code wheel 2. The metal elastic sheet 61 is arranged in the groove 13, two ends of the metal elastic sheet are fixed to form an elastic structure, the installation mode of the elastic component 6 occupies a small radial installation space of the shaft sleeve 1, the structural layout is compact and reasonable, meanwhile, the radial thrust of the elastic component 6 to the code disc 2 is generated by deformation of the middle part of the metal elastic sheet 61, the overall thrust is small, and the rotation hand feeling of the code disc 2 are not influenced.
Further, both ends of the metal elastic sheet 61 are formed with an elbow 611 having an elastic bending space, and the elbow 611 is tightly fastened in the groove 13. The elbow 611 is set to the both ends of metal shell fragment 61, and elbow 611 not only can close-fitting in recess 13, and elbow 611 has certain outside open elasticity moreover, and in the handle of a shaft 5 drove code wheel 2 rotation in-process, second ripples flank of tooth 23 can lead to the middle part of metal shell fragment 61 to warp repeatedly, and then can drive the both ends swing deformation of metal shell fragment 61, sets up elbow 611 after, and this kind of deformation can not lead to appearing not hard up between both ends and the recess 13 of metal shell fragment 61, and then has avoided because of the intermittent type radial thrust of losing metal shell fragment 61 of code wheel 2 to lead to the handle of a shaft 5 to appear swaing not hard up.
Further, the abutment portion 62 is a plastic member fixed on the metal spring 61, and a side of the abutment portion 62 contacting the code wheel 2 is an arc surface 621. The propping part 62 is a plastic component, can be freely formed, can radially protrude a longer distance, reserves enough installation space for the metal elastic sheet 61, is convenient for the arrangement of the metal elastic sheet 61, and can conveniently form a larger contact surface contacted with the second wavy tooth surface 23 so as to always be propped against and contacted with the code wheel 2; the side of the abutment portion 62 contacting the code wheel 2 is provided with the circular arc surface 621, so that the rotational friction force between the two can be further reduced. In other embodiments, the elastic component 6 may also be various elastic members radially disposed on the shaft sleeve 1, for example, a radial blind hole is formed in the shaft sleeve 1, a spring is disposed in the blind hole, and a ball or a rubber member in abutting contact with the side wall of the code wheel 2 is disposed at the outer end of the spring.
In this embodiment, the push switch assembly 4 includes a switch base 41 having a switch contact 411 on a top surface, and a dome 42 supported on the top surface of the switch base 41, where the dome 42 is an elastic member of the push switch assembly 4, and the dome 42 is an elastic metal contact, and when pushed down, the switch contact 411 is turned on, and when the shaft 5 is released, the dome can be reset. In another embodiment, two switch contacts that open up and down are provided on the switch base 41, and a silicone cap as an elastic member is provided on the upper side of the switch contacts, and the switch contacts can be turned on by pressing the silicone cap.
In this embodiment, the elastic supporting plate 7 is hollowed out and formed on a supporting plate 71. Further, the supporting plate 71 is a plastic member, the bottom edge of the supporting plate 71 has a supporting flange 711 disposed around the circumference, the supporting flange 711 is supported on the top edge of the dome sheet 42, and the bottom surface of the elastic supporting sheet 7 is in contact with the top end of the dome sheet 42. The elastic supporting sheet 7 is hollowed and formed on the supporting plate 71, so that the elastic supporting sheet 7 is simpler to install and has a more stable and reliable structure; the support plate 71 can be supported and fixed between the base 3 and the switch seat 41 by the convex edge, so that the support plate 71 is simple and convenient to install, and the edge of the dome 42 can be pressed and fixed, so that the displacement of the dome is avoided.
In this embodiment, the bottom surface of the elastic supporting piece 7 has a protruding portion 700 that contacts against the top end of the dome sheet 42. The protrusion 700 can ensure reliable contact with the switch contact 411 when the dome sheet 42 is pressed down.
In this embodiment, the centers of the top and bottom surfaces of the code wheel 2 are protruded with positioning posts (24, 24 '), and correspondingly, the shaft sleeve 1 and the base 3 are provided with positioning recesses (14, 32) with diameters matched with the positioning posts (24, 24'). The positioning columns (24, 24') enable the shaft sleeve 1 and the base 3 to radially support the code wheel 2, so that concentricity and stability of the code wheel 2 are improved.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A stable rotary encoder switch, characterized by: the device comprises a shaft sleeve, wherein the bottom surface of the shaft sleeve is provided with a sunk cavity which is axially concave, and the inner bottom surface of the sunk cavity is fixed with an elastic wave plate; the cylindrical code disc is concentrically arranged in the sinking cavity, code chips are distributed on the bottom surface of the code disc around the circumference, the top surface of the code disc is provided with a first wave tooth surface arranged around the circumference, and the first wave tooth surface is used for being in abutting contact with the wave chip to generate rotary positioning handfeel; the base is fixed at the bottom end of the shaft sleeve, and the top surface of the base is provided with an electric brush contacted with the chip; the pressing switch assembly is fixed at the bottom end of the base; the shaft handle axially movably penetrates through the shaft sleeve, the code disc and the base, and at least one matching plane limiting relative rotation is arranged between the shaft handle and the code disc so as to drive the code disc to synchronously rotate; the elastic component is arranged on the shaft sleeve and radially props against the outer side wall of the code disc; and the elastic supporting piece is arranged between the base and the pressing switch assembly, one end of the elastic supporting piece is fixed, and the other end of the elastic supporting piece radially extends and abuts against the bottom end of the shaft handle.
2. A stable rotary encoder switch according to claim 1, wherein: the outer side wall of the code wheel is provided with a second wave tooth surface which is arranged around the circumference, and the wave crest of the second wave tooth surface is an arc surface.
3. A stable rotary encoder switch according to claim 2, wherein: the elastic component comprises a metal elastic sheet which is arranged in the groove along the length direction and is fixed at two ends, and a propping part which is arranged in the middle of the metal elastic sheet and radially propped against the outer side wall of the code disc.
4. A stable rotary encoder switch according to claim 3, characterized in that: and the two ends of the metal elastic sheet are respectively provided with an elbow with an elastic bending space, and the elbow is tightly clamped and fixed in the groove.
5. A stable rotary encoder switch according to claim 3, characterized in that: the abutting part is a plastic component fixed on the metal elastic sheet, and one side of the abutting part, which contacts the code disc, is an arc surface.
6. A stable rotary encoder switch according to claim 1, wherein: the push switch assembly comprises a switch base body with a switch contact piece on the top surface and a dome sheet supported on the top surface of the switch base body.
7. A stable rotary encoder switch according to claim 6, wherein: the elastic supporting piece is hollowed and formed on a supporting plate.
8. A stable rotary encoder switch according to claim 7, wherein: the support plate is a plastic member, the bottom surface edge of the support plate is provided with a support convex edge which is arranged around the circumference, the support convex edge is supported on the top surface edge of the dome, and the bottom surface of the elastic support piece is in propping contact with the top end of the dome.
9. A stable rotary encoder switch according to claim 8, wherein: the bottom surface of the elastic supporting piece is provided with a protruding part which is in propping contact with the top end of the dome.
10. A stable rotary encoder switch according to claim 1, wherein: and the center of the top surface and/or the bottom surface of the code disc is/are provided with positioning columns in a protruding mode, and correspondingly, the shaft sleeve and/or the base is/are provided with positioning concave matched with the diameter of the positioning columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735594.1U CN220085900U (en) | 2023-07-04 | 2023-07-04 | Stable rotary coding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735594.1U CN220085900U (en) | 2023-07-04 | 2023-07-04 | Stable rotary coding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220085900U true CN220085900U (en) | 2023-11-24 |
Family
ID=88823966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321735594.1U Active CN220085900U (en) | 2023-07-04 | 2023-07-04 | Stable rotary coding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220085900U (en) |
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2023
- 2023-07-04 CN CN202321735594.1U patent/CN220085900U/en active Active
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