CN116201461A - Interlocking type pulley and curtain machine - Google Patents

Interlocking type pulley and curtain machine Download PDF

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Publication number
CN116201461A
CN116201461A CN202310392004.8A CN202310392004A CN116201461A CN 116201461 A CN116201461 A CN 116201461A CN 202310392004 A CN202310392004 A CN 202310392004A CN 116201461 A CN116201461 A CN 116201461A
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CN
China
Prior art keywords
transmission
piece
transmission piece
circumferential
sliding
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Pending
Application number
CN202310392004.8A
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Chinese (zh)
Inventor
杨玉秀
殷润雄
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Guangzhou Aotewei Motor Co ltd
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Guangzhou Aotewei Motor Co ltd
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Priority to CN202310392004.8A priority Critical patent/CN116201461A/en
Publication of CN116201461A publication Critical patent/CN116201461A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E06B9/362—Travellers; Lamellae suspension stems
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E06B9/362—Travellers; Lamellae suspension stems
    • E06B9/364—Operating mechanisms therein
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E06B9/367—Lamellae suspensions ; Bottom weights; Bottom guides

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The invention discloses an interlocking type pulley and a curtain machine, wherein when the rotating speeds of a first transmission piece and a second transmission piece are different, the first transmission piece and the second transmission piece are mutually far away, and meanwhile, the first transmission piece is in transmission connection with a dimming hanging piece, and the second transmission piece is locked with a frame body; therefore, when the synchronous belt for driving the second transmission part does not work, the second transmission part and the frame body are kept fixed at the same time, so that the frame body is ensured not to move on the curtain machine guide rail, and the opening and closing of the curtain sheet and the stable turning action are realized; the curtain machine adopts the interlocking pulley and the working process is more stable.

Description

Interlocking type pulley and curtain machine
Technical Field
The invention relates to the technical field of curtain machines, in particular to an interlocking pulley and a curtain machine.
Background
The curtain machine is a machine capable of electrically controlling the action of a curtain, and regarding a vertical curtain machine (hereinafter referred to as a curtain machine), the curtain machine is provided with a plurality of curtain sheets, the curtain is opened and closed by adjusting the positions of the curtain sheets, and the light transmission angle of the curtain is adjusted by overturning the curtain sheets to different angles; in order to realize the bending of the curtain machine, a double-belt driving mode is adopted at present, for example, the prior art with the publication number of CN216060124U, CN 217300418U;
the current double-belt type electric vertical curtain machine comprises a curtain machine guide rail, wherein a plurality of movable pulleys (for example, a double-belt pulley with the publication number of CN 217300418U) are arranged in the curtain machine guide rail, a first transmission part and a second transmission part are arranged on the pulleys, a differential clutch structure is formed between the first transmission part and the second transmission part, the first transmission part is in transmission connection with a first transmission belt in the curtain machine guide rail, and the second transmission part is in transmission connection with a second transmission belt in the curtain machine guide rail;
the second driving belt is fixedly connected with the first pulley, other pulleys are not fixedly connected with the second driving belt, when the curtain sheet needs to be folded, the second driving belt works, the first pulley is driven by the second driving belt to move in the curtain machine guide rail, and the first pulley pushes the other pulleys to move, so that the curtain sheet is folded; when the curtain sheet needs to be unfolded, the first pulley moves, the latter pulley is driven to move by the distance sheet, and the latter pulley moves one by the distance sheet, so that the curtain sheet is unfolded; in addition, the first driving belt is not fixedly connected with all pulleys;
in application, the following problems sometimes occur, when the curtain sheet needs to be turned over, the second driving belt does not act, only the first driving belt acts, and at the moment, the pulleys except the first pulley move along the curtain machine guide rail; the moving distance of each pulley is also different, and an irregular and unstable working process is presented; in addition, part of the power of the first driving belt is used for the movement of the pulley, so that the turning power obtained by the curtain sheet is reduced, and the turning effect is influenced; the inventors have made an effort to solve the above-described technical problems.
Disclosure of Invention
Accordingly, the present invention provides an interlocking pulley and a curtain machine, which can solve at least one of the above problems to some extent.
The technical scheme of one aspect of the invention is realized as follows:
an interlocking sled comprising:
the light-adjusting device comprises a frame body, wherein a limiting shaft is arranged on the frame body, a rotatable light-adjusting hanging piece is further arranged on the frame body, and a first circumferential transmission part is arranged on the light-adjusting hanging piece; and
the first transmission piece and the second transmission piece are sleeved on the limiting shaft in a sliding manner, and a differential clutch structure is formed between the first transmission piece and the second transmission piece;
a first card inserting part is arranged at one end, far away from the first transmission part, of the second transmission part, and a second card inserting part which is correspondingly inserted with the first card inserting part is arranged on the frame body;
when the rotating speeds of the first transmission piece and the second transmission piece are different, the first transmission piece and the second transmission piece move along the axial direction to be far away from each other, so that the first transmission piece is in transmission connection with the first circumferential transmission part to drive the dimming pendant to rotate; the first card inserting part of the second transmission piece is inserted into the second card inserting part of the frame body, so that the frame body and the second transmission piece are relatively fixed;
when the rotation speeds of the first transmission piece and the second transmission piece are the same, the first transmission piece and the second transmission piece are driven by the reset mechanism to be close to each other, so that the first transmission piece is separated from the first circumferential transmission part, and the first card inserting part is separated from the second card inserting part.
As a further alternative of the interlocking pulley, the differential clutch structure includes a differential block and a differential hole, the differential block and the differential block are respectively disposed at eccentric positions of end surfaces of one of the first transmission member and the second transmission member, and two end surfaces of the differential block in a rotation direction are inclined surfaces; the structure and the position of the differential holes correspond to those of the differential blocks; when the rotation speeds of the first transmission piece and the second transmission piece are different, the differential block is separated from the differential hole under the guiding action of the inclined plane, and the first transmission piece and the second transmission piece are far away from each other.
As a further alternative of the interlocking pulley, the reset mechanism includes a plurality of first magnets provided on the first transmission member and a plurality of second magnets provided on the second transmission member, and the differential block is inserted into the differential hole when the first magnets correspond to the second magnets in position.
As a further alternative of the interlocking pulley, the interlocking pulley further comprises a third transmission member, wherein the third transmission member is rotatably arranged on the frame body and is coaxially arranged with the limiting shaft; the periphery of the third transmission piece is provided with a second circumferential transmission part in transmission connection with the first circumferential transmission part, and the first circumferential transmission part and the second circumferential transmission part are a plurality of transmission teeth arranged along the circumferential direction; the end face, close to the first transmission piece, of the first transmission piece is provided with a first meshing structure, and the end face, close to the first transmission piece, of the third transmission piece is provided with a second meshing structure; the first engagement structure is in contact engagement with the second engagement structure when the first transmission member moves axially closer to the third transmission member.
As a further alternative of the interlocking pulley, the first engagement structure is a plurality of transmission teeth extending from one end of the first transmission member in an axial direction, the second engagement structure is a plurality of transmission teeth extending from one end of the third transmission member in an axial direction, and the plurality of transmission teeth of the second engagement structure are arrayed in an equidistant manner in a circumferential direction;
the first transmission part is internally provided with a first sliding part which is coaxially arranged, and the first meshing structure is formed on the end face of the first sliding part; a first channel for the first sliding part to slide is arranged in the first transmission part, and a first elastic part for driving the first sliding part to be far away from the first transmission part is arranged in the first channel; the first transmission member is provided with a first blocking part for limiting the maximum distance of the first sliding member away from the first transmission member.
As a further alternative scheme of the interlocking pulley, the first transmission member is provided with a plurality of first elastic strips, the plurality of first elastic strips are arranged at the inlet of the first channel at intervals along the circumferential direction, the inner wall of the first elastic strips is provided with a first protruding block in a protruding manner along the radial direction, the first protruding block is blocked on the moving path of the first sliding member, the end face of the first protruding block, which is close to the first channel, is used as the first blocking part, and the end face of the first protruding block, which is far away from the first channel, is provided with a guide surface which is obliquely arranged from outside to inside.
As a further alternative scheme of the interlocking pulley, the first inserting and clamping part is a plurality of transmission teeth extending from one end of the second transmission member along the circumferential direction, and the second inserting and clamping part is a plurality of transmission teeth arranged on the frame body at equal intervals along the circumferential direction; when the first card inserting part is inserted into the second card inserting part, the transmission teeth of the first card inserting part are inserted into tooth grooves between two transmission teeth of the second card inserting part;
the second transmission part is internally provided with a second sliding part which is coaxially arranged, and the first inserting and clamping part is formed on the end face of the second sliding part; a second channel for sliding the second sliding part is arranged in the second transmission part, and a second elastic part for driving the first sliding part to be far away from the second transmission part is arranged in the second channel; the second transmission member is provided with a second blocking part for limiting the maximum distance of the second sliding member away from the second transmission member.
As a further alternative of the interlocking pulley, the second transmission member is provided with a plurality of second elastic strips, the second elastic strips are arranged at the inlet of the second channel at intervals along the circumferential direction, the inner wall of the second elastic strips is provided with second protruding blocks along the radial direction, the second protruding blocks on the moving path of the second sliding member, the end surface of the second protruding block, which is close to the second channel, is used as a second blocking part, and the end surface of the second protruding block, which is far away from the second channel, is provided with a guiding surface which is obliquely arranged from outside to inside.
As a further alternative of the interlocking pulley, the first transmission member is provided with a third circumferential transmission part for being driven to rotate around the limiting shaft; and a fourth circumferential transmission part is arranged on the second transmission part and is used for being driven to rotate around the limiting shaft.
The technical scheme of the other aspect of the invention is realized as follows:
a curtain machine comprises any one of the interlocking pulleys.
The invention has the beneficial effects that: when the rotating speeds of the first transmission piece and the second transmission piece are different, the first transmission piece and the second transmission piece are far away from each other, and meanwhile, the transmission connection of the first transmission piece and the dimming hanging piece and the locking of the second transmission piece and the frame body are realized; therefore, when the synchronous belt for driving the second transmission part does not work, the second transmission part and the frame body are kept fixed at the same time, so that the frame body is ensured not to move on the curtain machine guide rail, and the opening and closing of the curtain sheet and the stable turning action are realized; the curtain machine adopts the interlocking pulley and the working process is more stable.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an interlocking sled;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of the first and second transmission members;
FIG. 4 is a schematic cross-sectional view of an interlocking sled;
FIG. 5 is an exploded view of the second transmission member and the second slider;
FIG. 6 is an enlarged view of A in FIG. 4;
FIG. 7 is a schematic structural view of the second transmission member locked with the frame body;
fig. 8 is a schematic structural view of the interlocking sled disposed within a curtain rail.
In the figure: 1. a frame body; 11. a limiting shaft; 12. a second card insertion part; 13. a second positioning plate; 14. a first positioning plate;
2. dimming hanging pieces; 21. a first peripheral transmission part;
3. a first transmission member; 31. a differential block; 32. a third circumferential transmission portion; 33. a first engagement structure; 34. a first slider; 35. a first elastic member;
4. a second transmission member; 41. a differential hole; 42. a fourth circumferential transmission part; 43. a first card insertion section; 44. a second slider; 45. a second elastic member; 46. a second elastic strip; 461. a second bump; 462. a second blocking portion;
5. a third transmission member; 51. a second circumferential transmission portion; 52. and a second engagement structure.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The inventor finds that the reason that the pulley moves when the curtain sheet is driven to turn over is that; because the pulleys except the first pulley are not fixedly connected with the second transmission belt, and the friction force between the pulleys and the curtain machine guide rail is small; when the first driving belt drives the first driving member to rotate, even if the second driving belt does not act, the power provided by the first driving belt drives the pulley to move in the curtain machine guide rail, and the second driving member on the pulley rotates to walk along the second driving belt which does not act; and because the friction force of each pulley in the curtain machine guide rail is different, the moving distance of each pulley is also different, and an irregular and unstable working process is presented.
Therefore, an interlocking pulley is provided, referring to fig. 1-3, the interlocking pulley comprises a frame body 1, a limiting shaft 11 is arranged on the frame body 1, a rotatable dimming hanging piece 2 is further arranged on the frame body 1, and a first circumferential transmission part 21 is arranged on the dimming hanging piece 2; the limiting shaft 11 is slidably sleeved with a first transmission piece 3 and a second transmission piece 4, and a differential clutch structure is formed between the first transmission piece 3 and the second transmission piece 4; the second transmission member 4 is provided with a first card inserting portion 43 at one end far away from the first transmission member 3, and the frame 1 is provided with a second card inserting portion 12 corresponding to the first card inserting portion 43. The first transmission member 3 is provided with a third circumferential transmission portion 32, and the second transmission member 4 is provided with a fourth circumferential transmission portion 42.
Wherein, referring to fig. 8, the interlocking pulley is arranged in a curtain machine guide rail, and a first driving belt and a second driving belt are arranged in the curtain machine guide rail, the first driving belt is in driving fit with a third circumferential driving part 32 on the first driving part 3, and the second driving belt is in driving fit with an axial driving part on the second driving part 4; conventionally, the first and second belts may be timing belts, and the third and fourth circumferential transmission portions 32 and 42 may be timing wheel structures; as known from the double belt driving structure with publication number CN112554765a or CN215634784U, the first belt may work alone or the first belt and the second belt work synchronously;
if the first driving belt works independently, the rotation speed of the first driving member 3 is different from that of the second driving member 4, and under the action of the differential clutch structure, the first driving member 3 and the second driving member 4 move axially away from each other, so that the first driving member 3 is in driving connection with the first circumferential driving portion 21 to drive the dimming hanging member 2 to rotate; wherein the first transmission member 3 and the first circumferential transmission portion 21 may be directly connected or indirectly connected through an intermediate member; the first inserting and clamping part 43 of the second transmission member 4 is inserted and connected to the second inserting and clamping part 12 of the frame body 1, and the state is shown in fig. 7 at this time, so that the relative fixation of the frame body 1 and the second transmission member 4 is realized; the second transmission part 4 cannot rotate on the frame body 1, namely the second transmission part 4 cannot walk along a second transmission belt, so that the first transmission belt cannot drive the frame body 1 to move in a curtain machine guide rail; thereby realizing the stable turning of the curtain sheet.
If the first and second driving belts work synchronously, the rotation speed of the first driving member 3 is the same as that of the second driving member 4, and under the action of the differential clutch structure, the first driving member 3 and the second driving member 4 are driven by the reset mechanism to approach each other, so that the first driving member 3 is separated from the first circumferential driving portion 21, and the first card inserting portion 43 is separated from the second card inserting portion 12, where the state is shown in fig. 1. At this time, the second transmission member 4 is rotatable on the frame body 1, so that the frame body 1 can move along the curtain machine guide rail to realize the opening and closing of the curtain sheet.
In the above embodiment, the first card inserting portion 43 and the second card inserting portion 12 may be an insertion hole and an insertion column, respectively, so that the second transmission member 4 may not rotate on the frame body 1.
Specifically, referring to fig. 3, the differential clutch structure includes a differential block 31 and a differential hole 41, where the differential block 31 and the differential block 31 are respectively disposed at eccentric positions of end surfaces of one of the first transmission member 3 and the second transmission member 4, and two end surfaces of the differential block 31 in a rotation direction are inclined surfaces; the differential holes 41 are structured and positioned to correspond to the differential blocks 31; when the rotation speeds of the first transmission member 3 and the second transmission member 4 are different, the differential block 31 is separated from the differential hole 41 under the guiding action of the inclined plane, and the first transmission member 3 and the second transmission member 4 are far away from each other.
In detail, the reset mechanism includes a plurality of first magnets (not shown) disposed on the first transmission member 3 and a plurality of second magnets (not shown) disposed on the second transmission member 4, and when the first magnets and the second magnets correspond in position, the differential block 31 is inserted into the differential hole 41. The principle of magnetic force resetting can be used for referring to a double-belt pulley with the publication number of CN 217300418U; in addition, in other embodiments, elastic force can be used for resetting, for example, an elastic member for making the frame body 1 and the first transmission member 3 and the second transmission member 4 approach each other is arranged between the frame body and the first transmission member and the second transmission member; reference is made to the prior art publication CN216060124U by the principle of elastic return.
In particular, since the first transmission member 3 and the second transmission member 4 are moved away from each other and toward each other in the present embodiment, in order to make the first transmission member 3 and the second transmission member 4 stably located at a position where the first card insertion portion 43 is separated from the second card insertion portion 12 and the first transmission member 3 is separated from the first circumferential transmission portion 21 after being moved toward each other; therefore, a corresponding structure should be provided as a reference, so that the first transmission member 3 and the second transmission member 4 can be reset to the same position, referring to fig. 1 and 7, the frame 1 is provided with a first positioning plate 14 and a second positioning plate 13, the first transmission member 3 is abutted to the first positioning plate 14 after being reset, and the second transmission member 4 is abutted to the second positioning plate 13 after being reset; in order to avoid that the first positioning plate 14 and the second positioning plate 13 provide too great friction force to prevent the first transmission member 3 and the second transmission member 4 from rotating, the contact area between the first positioning plate 14 and the first transmission member 3 and between the second positioning plate 13 and the second transmission member 4 is preferably as small as possible.
In some embodiments, to facilitate the reliable driving connection between the first driving element 3 and the first peripheral driving portion 21, referring to fig. 2 and 3, a third driving element 5 is further included, and the third driving element 5 is rotatably disposed on the frame 1 and coaxially disposed with the limiting shaft 11; the outer circumference of the third transmission member 5 is provided with a second circumferential transmission portion 51 in transmission connection with the first circumferential transmission portion 21, and the first circumferential transmission portion 21 and the second circumferential transmission portion 51 are a plurality of transmission teeth arranged along the circumferential direction; the end face, close to the first transmission piece 3, of the third transmission piece 5 is provided with a first meshing structure 33, and the end face, close to the first transmission piece 3, of the third transmission piece 5 is provided with a second meshing structure 52; when the first transmission member 3 moves in the axial direction to approach the third transmission member 5, the first engagement structure 33 is brought into contact engagement with the second engagement structure 52. Wherein, the first circumferential transmission part 21 and the second circumferential transmission part 51 may have a gear structure.
There are special cases in which the frame 1 is pushed by a strong external force when the first card inserting portion 43 is inserted into the second card inserting portion 12, so as to avoid damage to the first card inserting portion 43 or the second card inserting portion 12; preferably, referring to fig. 2 and 3, the first inserting and clamping part 43 is a plurality of transmission teeth extending from one end of the second transmission member 4 along the circumferential direction, and the second inserting and clamping part 12 is a plurality of transmission teeth arranged on the frame body 1 at equal intervals along the circumferential direction; when the first card inserting portion 43 is inserted into the second card inserting portion 12, the transmission teeth of the first card inserting portion 43 are inserted into the tooth grooves between the two transmission teeth of the second card inserting portion 12; referring to fig. 4-6, a second sliding member 44 coaxially disposed is disposed in the second transmission member 4, and the first card inserting portion 43 is formed on an end surface of the second sliding member 44; a second channel (not shown) for sliding the second sliding member 44 is arranged in the second transmission member 4, and a second elastic member 45 for driving the first sliding member 34 away from the second transmission member 4 is arranged in the second channel; the second transmission member 4 has a second blocking portion 462 thereon for limiting a maximum distance of the second slider 44 away from the second transmission member 4. Therefore, the first card inserting portion 43 is pushed by the second elastic member 45 to be pressed against the second card inserting portion 12, when the frame 1 is pushed by a strong external force, the second elastic member 45 is compressed, the first card inserting portion 43 will generate a "tooth jump" phenomenon on the second card inserting portion 12, so as to avoid the first card inserting portion 43 or the second card inserting portion 12 from breaking and damaging.
Likewise, there are special cases when the first engagement structure 33 engages with the second engagement structure 52, and the curtain on the dimmer suspension member 2 cannot rotate, for example, insufficient installation space causes the curtain to be too close to the wall, resulting in the wall blocking the curtain from continuing to rotate; or for example the curtain has been rotated to a limited angle; to avoid damage to the first engagement structure 33 or the second engagement structure 52 as the first belt continues to operate; referring to fig. 4, a first sliding member 34 coaxially disposed in the first transmission member 3, and the first engagement structure 33 is formed on an end surface of the first sliding member 34; a first channel (not shown) for sliding the first sliding member 34 is arranged in the first transmission member 3, and a first elastic member 35 for driving the first sliding member 34 away from the first transmission member 3 is arranged in the first channel; the first transmission member 3 has thereon a first blocking portion for limiting a maximum distance of the first slider 34 away from the first transmission member 3. Similarly, the first engagement structure 33 may "jump teeth" on the second engagement structure 52, so as to avoid breakage and damage of the first engagement structure 33 or the second engagement structure 52. The first elastic member 35 and the second elastic member 45 may employ springs.
In the above-mentioned solution, the first sliding member 34 and the first channel, and the second sliding member 44 and the second channel may be a circular hole and cylinder matching structure, and at this time, the first transmission member 3 drives the first sliding member 34 to rotate by the friction force between the first blocking portion and the first sliding member 34, and the second transmission member 4 drives the second sliding member 44 to rotate by the friction force between the second blocking portion 462 and the second sliding member 44; preferably, the fit structure between the first sliding member 34 and the first channel and between the second sliding member 44 and the second channel is a non-circular hole and a non-cylindrical (such as square column structure shown in fig. 5), so that the first sliding member 34 and the first transmission member 3 are relatively fixed in the circumferential direction, and the second sliding member 44 and the second transmission member 4 are relatively fixed in the circumferential direction.
In some specific embodiments, referring to fig. 4-6, the second transmission member 4 is provided with a plurality of second elastic strips 46, the plurality of second elastic strips 46 are circumferentially arranged at intervals at the entrance of the second channel, the inner wall of the second elastic strip 46 is radially provided with a second bump 461 in a protruding manner, the second bump 461 is blocked on the moving path of the second slider 44, the end surface of the second bump 461 close to the second channel serves as the second blocking portion 462, and the end surface of the second bump 461 far away from the second channel is formed with a guiding surface obliquely arranged from outside to inside. In this manner, the second slider 44 may snap directly into the second channel;
similarly, referring to fig. 4, the first transmission member 3 is provided with a plurality of first elastic strips (not labeled in the drawings), the plurality of first elastic strips are arranged at the inlet of the first channel at intervals along the circumferential direction, the inner wall of the first elastic strips is radially provided with a first bump (not labeled in the drawings) in a protruding manner, the first bump is blocked on the moving path of the first sliding member 34, the end surface of the first bump, which is close to the first channel, is used as the first blocking portion (not labeled in the drawings), and the end surface of the first bump, which is far away from the first channel, is provided with a guiding surface which is obliquely arranged from outside to inside. The first slider 34 may be mounted with reference to the second slider 44, and thus the drawings are not provided for illustration.
In addition, the interlocking pulley can realize the relative fixation of the second transmission part and the frame body, so that the frame body is fixed in the curtain machine guide rail; therefore, compared with a double-belt pulley with the publication number of CN217300418U, the limiting block on the pulley can be reduced, and the complexity of the internal structure of the curtain machine guide rail is correspondingly reduced.
Also provided is a window covering machine comprising any one of the interlocking pulleys described above.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. An interlocking sled, comprising:
the light-adjusting device comprises a frame body, wherein a limiting shaft is arranged on the frame body, a rotatable light-adjusting hanging piece is further arranged on the frame body, and a first circumferential transmission part is arranged on the light-adjusting hanging piece; and
the first transmission piece and the second transmission piece are sleeved on the limiting shaft in a sliding manner, and a differential clutch structure is formed between the first transmission piece and the second transmission piece;
a first card inserting part is arranged at one end, far away from the first transmission part, of the second transmission part, and a second card inserting part which is correspondingly inserted with the first card inserting part is arranged on the frame body;
when the rotating speeds of the first transmission piece and the second transmission piece are different, the first transmission piece and the second transmission piece move along the axial direction to be far away from each other, so that the first transmission piece is in transmission connection with the first circumferential transmission part to drive the dimming pendant to rotate; the first card inserting part of the second transmission piece is inserted into the second card inserting part of the frame body, so that the frame body and the second transmission piece are relatively fixed;
when the rotation speeds of the first transmission piece and the second transmission piece are the same, the first transmission piece and the second transmission piece are driven by the reset mechanism to be close to each other, so that the first transmission piece is separated from the first circumferential transmission part, and the first card inserting part is separated from the second card inserting part.
2. The interlocking sled of claim 1, wherein the differential clutch structure comprises a differential block and a differential hole, the differential block and the differential block are respectively arranged at eccentric positions of end surfaces of one of the first transmission member and the second transmission member, and two end surfaces of the differential block in a rotation direction are inclined surfaces; the structure and the position of the differential holes correspond to those of the differential blocks; when the rotation speeds of the first transmission piece and the second transmission piece are different, the differential block is separated from the differential hole under the guiding action of the inclined plane, and the first transmission piece and the second transmission piece are far away from each other.
3. The interlocking sled of claim 2, wherein the reset mechanism comprises a plurality of first magnets disposed on the first transmission member and a plurality of second magnets disposed on the second transmission member, the differential block being interposed within the differential aperture when the first magnets correspond in position to the second magnets.
4. The interlocking sled of claim 1, further comprising a third transmission member rotatably disposed on the frame and coaxially disposed with the limit shaft; the periphery of the third transmission piece is provided with a second circumferential transmission part in transmission connection with the first circumferential transmission part, and the first circumferential transmission part and the second circumferential transmission part are a plurality of transmission teeth arranged along the circumferential direction; the end face, close to the first transmission piece, of the first transmission piece is provided with a first meshing structure, and the end face, close to the first transmission piece, of the third transmission piece is provided with a second meshing structure; the first engagement structure is in contact engagement with the second engagement structure when the first transmission member moves axially closer to the third transmission member.
5. The interlocking sled of claim 4, wherein;
the first meshing structure is a plurality of transmission teeth extending from one end of the first transmission member in the axial direction, the second meshing structure is a plurality of transmission teeth extending from one end of the third transmission member in the axial direction, and the plurality of transmission teeth of the second meshing structure are arranged in an equidistant manner in the circumferential direction;
the first transmission part is internally provided with a first sliding part which is coaxially arranged, and the first meshing structure is formed on the end face of the first sliding part; a first channel for the first sliding part to slide is arranged in the first transmission part, and a first elastic part for driving the first sliding part to be far away from the first transmission part is arranged in the first channel; the first transmission member is provided with a first blocking part for limiting the maximum distance of the first sliding member away from the first transmission member.
6. The interlocking pulley according to claim 5, wherein the first transmission member is provided with a plurality of first elastic strips, the plurality of first elastic strips are arranged at the inlet of the first channel at intervals along the circumferential direction, the inner wall of the first elastic strips is provided with first protruding blocks along the radial direction, the first protruding blocks on the moving path of the first sliding member, the end face, close to the first channel, of the first protruding blocks is used as the first blocking part, and a guide surface which is obliquely arranged from outside to inside is formed on the end face, far away from the first channel, of the first protruding blocks.
7. The interlocking sled of any one of claims 1, 5 or 6 wherein:
the first inserting and clamping part is a plurality of transmission teeth extending from one end of the second transmission member along the circumferential direction, and the second inserting and clamping part is a plurality of transmission teeth arranged on the frame body at equal intervals along the circumferential direction; when the first card inserting part is inserted into the second card inserting part, the transmission teeth of the first card inserting part are inserted into tooth grooves between two transmission teeth of the second card inserting part;
the second transmission part is internally provided with a second sliding part which is coaxially arranged, and the first inserting and clamping part is formed on the end face of the second sliding part; a second channel for sliding the second sliding part is arranged in the second transmission part, and a second elastic part for driving the first sliding part to be far away from the second transmission part is arranged in the second channel; the second transmission member is provided with a second blocking part for limiting the maximum distance of the second sliding member away from the second transmission member.
8. The interlocking pulley according to claim 7, wherein the second transmission member is provided with a plurality of second elastic strips, the second elastic strips are circumferentially arranged at intervals at the inlet of the second channel, the inner wall of the second elastic strips is radially provided with second protruding blocks, the second protruding blocks are blocked on the moving path of the second sliding member, the end face, close to the second channel, of the second protruding blocks is used as the second blocking portion, and a guide surface which is obliquely arranged from outside to inside is formed on the end face, far away from the second channel, of the second protruding blocks.
9. The interlocking sled of claim 1, wherein the first transmission member is provided with a third circumferential transmission portion for being driven to rotate about the limit shaft; and a fourth circumferential transmission part is arranged on the second transmission part and is used for being driven to rotate around the limiting shaft.
10. A curtain machine comprising an interlocking sled according to any one of claims 1-9.
CN202310392004.8A 2023-04-13 2023-04-13 Interlocking type pulley and curtain machine Pending CN116201461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310392004.8A CN116201461A (en) 2023-04-13 2023-04-13 Interlocking type pulley and curtain machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310392004.8A CN116201461A (en) 2023-04-13 2023-04-13 Interlocking type pulley and curtain machine

Publications (1)

Publication Number Publication Date
CN116201461A true CN116201461A (en) 2023-06-02

Family

ID=86509649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310392004.8A Pending CN116201461A (en) 2023-04-13 2023-04-13 Interlocking type pulley and curtain machine

Country Status (1)

Country Link
CN (1) CN116201461A (en)

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