CN218062156U - Limit transmission structure for curtain machine - Google Patents
Limit transmission structure for curtain machine Download PDFInfo
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- CN218062156U CN218062156U CN202220856972.0U CN202220856972U CN218062156U CN 218062156 U CN218062156 U CN 218062156U CN 202220856972 U CN202220856972 U CN 202220856972U CN 218062156 U CN218062156 U CN 218062156U
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Abstract
The utility model discloses a limit transmission structure for a curtain machine, which comprises a track, wherein a pulley connected with a vertical curtain is arranged in the track, a light-adjusting pendant used for connecting the vertical curtain is arranged on the pulley, and the light-adjusting pendant is in transmission connection with a light-adjusting shaft so as to drive the vertical curtain to turn over; the limiting transmission structure comprises a rotation limiting mechanism for limiting the rotation angle of the dimming hanging piece, and the rotation limiting mechanism is in transmission connection with the dimming shaft. The first end or the second end of the worm meshing teeth on the first transmission piece is blocked by a limiting plate of a worm wheel meshing part on the second transmission piece after the dimming shaft drives the first transmission piece to rotate for a certain number of turns, so that the first transmission piece cannot rotate continuously; the dimming shaft cannot continuously drive the dimming hanging piece to rotate, so that the tackle cannot generate noise.
Description
Technical Field
The utility model relates to a curtain machine technical field especially relates to a spacing transmission structure that curtain machine was used.
Background
With the development of science and technology, a curtain machine capable of electrically controlling a curtain appears; the curtain machine comprises a curtain machine for controlling vertical curtains, wherein the conventional vertical curtain machine generally connects the vertical curtains to pulleys, and then a plurality of pulleys are arranged on a track in a sliding way and driven to move by a belt; in addition, the light adjusting shaft penetrates through the plurality of pulleys, and the vertical curtain is driven to turn over the sheet by rotating the light adjusting shaft.
1-4, a light-adjusting pendant (21) and a transmission connecting piece (22) are arranged on a pulley (2), the transmission connecting piece (22) comprises a first connecting piece (221) and a second connecting piece (222), the first connecting piece (221) is sleeved with the second connecting piece (222), a worm part (2211) is arranged on the first connecting piece (221), a worm wheel part (211) is arranged on the light-adjusting pendant (21), and the first connecting piece (221) and the light-adjusting pendant (21) form worm and gear transmission connection; a limiting structure (212) for blocking the rotation of the end part of the worm part (2211) is arranged on a part of tooth grooves of the worm wheel part (211), so that the first connecting piece (221) can only drive the dimming hanging piece (21) to rotate at a certain angle, and in general, the vertical curtain only needs to be turned over within the range of 0-180 degrees, so that the vertical curtain can be prevented from being turned over continuously in one direction; in addition, a clamping strip (2221) is arranged on the outer wall of the second connecting piece (222), a clamping groove is arranged on the inner wall of the first connecting piece (221), and the clamping groove (2212) is in clamping connection with the clamping strip (2221); the dimming shaft (3) is inserted in the second connecting piece (222) so as to drive the second connecting piece (222) to rotate, and the second connecting piece (222) drives the first connecting piece (221) to rotate; in some cases, when the first connecting piece (221) is limited by the limiting structure (212) of the worm gear portion (211) and cannot rotate, the light adjusting shaft (3) continues to rotate, and the second connecting piece (222) and the first connecting piece (221) can rotate relatively, so that the clamping strip (2221) and the clamping groove (2212) are separated and matched continuously, and accordingly clamping noise is generated, and user experience is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a spacing transmission structure that (window) curtain machine was used can solve the problem that present vertical curtain machine internal slipping produced the noise.
The technical scheme of the utility model is realized like this:
a limit transmission structure for a curtain machine comprises a track, wherein a pulley connected with a vertical curtain is arranged in the track, the pulley comprises a light-adjusting hanging piece used for connecting the vertical curtain, and the light-adjusting hanging piece is in transmission connection with a light-adjusting shaft so as to drive the vertical curtain to perform a turning motion; the limiting transmission structure comprises a rotation limiting mechanism for limiting the rotation angle of the dimming hanging piece, and the rotation limiting mechanism is in transmission connection with the dimming shaft.
As a further alternative of the limit transmission structure for the window covering machine, the rotation limit mechanism includes:
the first transmission piece is sleeved on the dimming shaft and is in circumferential transmission connection with the dimming shaft, worm meshing teeth extending along the axial direction in a spiral curve are arranged on the periphery of the first transmission piece, and each worm meshing tooth comprises a first end and a second end;
the axis of the second transmission part is perpendicular to the axis of the first transmission part, a worm gear meshing part is arranged on the second transmission part, and the worm gear meshing part and the worm meshing tooth form worm gear and worm transmission connection; and a limiting plate used for blocking the first end or the second end from moving is arranged in at least part of adjacent tooth grooves on the worm gear meshing part.
As a further alternative of the limit transmission structure for the window covering machine, the rotation limit mechanism further comprises a base, the first transmission member is rotatably disposed on the base, the second transmission member is rotatably disposed on the base, and the base is detachably mounted on the window covering machine.
As a further alternative of the limit transmission structure for the curtain machine, a main transmission box and an auxiliary transmission box are respectively arranged at two ends of a track of the curtain machine, a transmission mechanism for driving the dimming shaft to rotate is arranged in the main transmission box, and the base is detachably fixed in the auxiliary transmission box.
As a further alternative of the limiting transmission structure for the curtain machine, a detachable box cover is arranged on the auxiliary transmission box.
As a further alternative of the limit transmission structure for the window covering machine, the projections of the first end and the second end in the axial direction are engaged with each other.
As a further alternative of the limit transmission structure for the curtain machine, the number of spiral turns of the meshing teeth of the worm is one turn.
As a further alternative of the limit transmission structure for the curtain machine, under the limit of the limit plate, the circumferential rotation angle range of the second transmission member is 0-180 °.
The beneficial effects of the utility model are that: the first end or the second end of the worm meshing teeth on the first transmission piece is blocked by a limiting plate of a worm wheel meshing part on the second transmission piece after the dimming shaft drives the first transmission piece to rotate for a certain number of turns, so that the first transmission piece cannot continue to rotate, and the second transmission piece cannot rotate; the light adjusting shaft cannot continue to drive the light adjusting hanging piece to rotate, so that the tackle cannot generate noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a conventional tackle;
FIG. 2 is an exploded view of a prior art carrier;
FIG. 3 is a second schematic exploded view of a conventional carrier;
fig. 4 is an exploded top plan view of a prior art trolley;
fig. 5 is a schematic structural view of a limit transmission structure for a window covering machine of the present invention;
FIG. 6 is an exploded view of the rotation limiting mechanism;
FIG. 7 is a second exploded view of the rotation limiting mechanism;
fig. 8 is an exploded top view of the rotation limiting mechanism.
In the figure: 1. a track;
2. a pulley; 21. a dimming hanging part; 211. a worm gear portion; 212. a limiting structure; 22. a drive connection; 221. a first connecting member; 2211. a worm part; 2212. a card slot; 222. a second connecting member; 2221. clamping the strip;
3. adjusting the optical axis;
4. a rotation limiting mechanism; 41. a first transmission member; 411. worm gear teeth; 4111. a first end; 4112. a second end; 42. a second transmission member; 421. a worm gear engaging portion; 422. a limiting plate; 43. a base;
5. a main transmission case;
6. an auxiliary transmission case; 61. and a box cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 5-8, a limit transmission structure for a window curtain machine is shown, the window curtain machine includes a track 1, a pulley 2 connected with a vertical curtain is arranged in the track 1, the pulley 2 includes a light modulation hanging piece 21 for connecting the vertical curtain, the light modulation hanging piece 21 is in transmission connection with a light modulation shaft 3 to drive the vertical curtain to perform a flap motion; the limiting transmission structure comprises a rotation limiting mechanism 4 used for limiting the rotation angle of the dimming hanging piece 21, and the rotation limiting mechanism 4 is in transmission connection with the dimming shaft 3.
One end of the track 1 is provided with a main transmission case 5, and the other end is provided with an auxiliary transmission case 6; two ends of the light adjusting shaft 3 are respectively positioned in the main transmission box 5 and the auxiliary transmission box 6; a transmission mechanism for driving the dimming axis 3 to rotate is arranged in the main transmission box 5, and a driver (not shown) provides driving force for the transmission mechanism, and the driver can be a motor. The rotation limiting mechanism 4 is arranged in the auxiliary transmission box 6 and is in transmission connection with the dimming shaft 3.
Specifically, the rotation limiting mechanism 4 includes a first transmission member 41 and a second transmission member 42, the first transmission member 41 is sleeved on the dimming axis 3 and forms a circumferential transmission connection with the dimming axis 3, the dimming axis 3 is inserted into a hole (not marked in the figure) of the first transmission member 41, and when the dimming axis 3 rotates, the first transmission member 41 is driven to rotate; the periphery of the first transmission piece 41 is provided with a worm meshing tooth 411 extending along the axial direction of the first transmission piece in a spiral curve, and the worm meshing tooth 411 comprises a first end 4111 and a second end 4112; optionally, the first end 4111 and the second end 4112 are projected to each other in an axial direction, and the number of turns of the worm meshing tooth 411 is one.
Referring to fig. 7 and 8, an axis of the second transmission member 42 is perpendicular to an axis of the first transmission member 41, a worm gear engaging portion 421 is provided on the second transmission member 42, and the worm gear engaging portion 421 and the worm gear engaging teeth 411 form a worm gear-worm transmission connection; a limiting plate 422 for blocking the movement of the first end 4111 or the second end 4112 is arranged in at least part of adjacent tooth grooves on the worm gear meshing part 421. Wherein, a plurality of spacing plates 422 are respectively disposed in adjacent tooth slots, the worm engaging tooth 411 can rotate in the tooth slot without spacing plate 422, and when the worm engaging tooth 411 rotates to the tooth slot with spacing plate 422, the spacing plate 422 blocks the first end 4111 or the second end 4112 from moving, so that the first transmission member 41 cannot rotate. The structures of the worm wheel engaging portion 421 and the limiting plate 422 are the same as the structures of the worm wheel portion 211 and the limiting structure 212 in the pulley 2, and when the worm engaging tooth 411 rotates to correspond to the tooth slot with the limiting plate 422, the worm portion 2211 of the first connecting member 221 in the pulley 2 is also blocked by the limiting structure 212 of the light adjusting hanging member 21.
In other words, the dimming shaft 3 drives the first transmission piece 41 and the transmission connection piece 22 in the pulley 2 to rotate, so that the second transmission piece 42 and the dimming hanging piece 21 rotate synchronously, when the first transmission piece 41 cannot rotate, the first transmission piece 41 limits the dimming shaft 3, so that the dimming shaft 3 cannot rotate, the dimming shaft 3 is prevented from driving the second connection piece 222 to rotate, and the generation of the rattling noise between the second connection piece 222 and the first connection piece 221 is avoided.
The position-limiting plate 422 may be disposed in a half of the tooth grooves of the worm gear engaging portion 421, and the half of the tooth grooves are adjacent to each other, so that the circumferential rotation angle range of the second transmission member 42 is 0 to 180 °, the structure of the worm gear portion 211 on the light-adjusting hanger 21 is the same as that of the worm gear engaging portion 421 of the second transmission member 42, the circumferential rotation angle range of the light-adjusting hanger 21 is also 0 to 180 °, and the flap angle range of the vertical curtain is 0 to 180 °.
In addition, the rotation limiting mechanism 4 further includes a base 43, the first transmission member 41 is rotatably disposed on the base 43, the second transmission member 42 is rotatably disposed on the base 43, and the base 43 is detachably mounted in the sub-transmission case 6; and a detachable box cover 61 is arranged on the auxiliary transmission box 6, so that the rotation limiting mechanism 4 is convenient to assemble and disassemble.
In practical application, before the curtain machine is installed, the plurality of pulleys 2 on the track 1 are adjusted to be in the same state, that is, the light-adjusting hangers 21 on all the pulleys 2 are positioned at the same rotation angle, so that all the pulleys 2 can synchronously rotate at the later stage; after the adjustment is completed, the rotation limiting mechanism 4 is installed in the auxiliary transmission box 6, wherein the second transmission member 42 is also adjusted to be located at the same rotation angle as the dimming hanging member 21. Then, the rotation limiting mechanism 4 can limit the excessive rotation of the light adjusting shaft 3, thereby avoiding the noise generated inside the pulley 2.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A limit transmission structure for a curtain machine comprises a track, wherein a pulley connected with a vertical curtain is arranged in the track, the pulley comprises a light-adjusting hanging piece used for connecting the vertical curtain, and the light-adjusting hanging piece is in transmission connection with a light-adjusting shaft so as to drive the vertical curtain to perform a turning motion; the light dimming device is characterized by comprising a rotation limiting mechanism for limiting the rotation angle of the light dimming hanging piece, wherein the rotation limiting mechanism is in transmission connection with the light dimming shaft.
2. The limit transmission structure for window covering machine as claimed in claim 1, wherein the rotation limit mechanism comprises:
the first transmission piece is sleeved on the dimming shaft and is in circumferential transmission connection with the dimming shaft, worm meshing teeth extending along the axial direction of the first transmission piece in a spiral curve are arranged on the periphery of the first transmission piece, and the worm meshing teeth comprise a first end and a second end;
the axis of the second transmission piece is perpendicular to that of the first transmission piece, a worm gear meshing part is arranged on the second transmission piece, and the worm gear meshing part and the worm meshing tooth form worm gear and worm transmission connection; and a limiting plate used for blocking the first end or the second end from moving is arranged in at least part of adjacent tooth grooves on the worm gear meshing part.
3. The limit transmission structure for window covering machine as claimed in claim 2, wherein the rotation limit mechanism further comprises a base, the first transmission member is rotatably disposed on the base, the second transmission member is rotatably disposed on the base, and the base is detachably mounted on the window covering machine.
4. The limit transmission structure for the window curtain machine as claimed in claim 3, wherein a main transmission box and an auxiliary transmission box are respectively disposed at two ends of the rail of the window curtain machine, a transmission mechanism for driving the dimming axis to rotate is disposed in the main transmission box, and the base is detachably fixed in the auxiliary transmission box.
5. The limit transmission structure for window curtains as claimed in claim 4, wherein the sub-transmission box is provided with a detachable box cover.
6. The limit drive structure for window covering machine as claimed in claim 2, wherein the projections of the first and second ends in the axial direction are engaged with each other.
7. The limit transmission structure for window covering machine as claimed in claim 6, wherein the number of spiral turns of the worm meshing teeth is one turn.
8. The limit transmission structure for curtain machine according to claim 2, wherein the circumferential rotation angle of the second transmission member under the limit of the limit plate is in the range of 0-180 °; the second transmission piece and the dimming hanging piece rotate synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220856972.0U CN218062156U (en) | 2022-04-13 | 2022-04-13 | Limit transmission structure for curtain machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220856972.0U CN218062156U (en) | 2022-04-13 | 2022-04-13 | Limit transmission structure for curtain machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218062156U true CN218062156U (en) | 2022-12-16 |
Family
ID=84417264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220856972.0U Active CN218062156U (en) | 2022-04-13 | 2022-04-13 | Limit transmission structure for curtain machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218062156U (en) |
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2022
- 2022-04-13 CN CN202220856972.0U patent/CN218062156U/en active Active
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