CN113425148B - Telescopic guide rail for curtain - Google Patents

Telescopic guide rail for curtain Download PDF

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Publication number
CN113425148B
CN113425148B CN202110827364.7A CN202110827364A CN113425148B CN 113425148 B CN113425148 B CN 113425148B CN 202110827364 A CN202110827364 A CN 202110827364A CN 113425148 B CN113425148 B CN 113425148B
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CN
China
Prior art keywords
guide rail
rail
pulley
guide
curtain
Prior art date
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Active
Application number
CN202110827364.7A
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Chinese (zh)
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CN113425148A (en
Inventor
谭锦斌
李裕生
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Guangdong Rex Intelligent Technology Co ltd
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Guangdong Rex Intelligent Technology Co ltd
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Publication date
Application filed by Guangdong Rex Intelligent Technology Co ltd filed Critical Guangdong Rex Intelligent Technology Co ltd
Priority to CN202110827364.7A priority Critical patent/CN113425148B/en
Publication of CN113425148A publication Critical patent/CN113425148A/en
Priority to US17/577,814 priority patent/US20220233011A1/en
Priority to EP22152436.6A priority patent/EP4032442A1/en
Application granted granted Critical
Publication of CN113425148B publication Critical patent/CN113425148B/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H1/00—Curtain suspension devices
    • A47H1/04—Curtain rails
    • A47H1/08—Curtain rails extensible
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H11/00—Curtain cord appurtenances
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H15/00—Runners or gliders for supporting curtains on rails or rods
    • A47H15/04—Gliders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

The invention provides a curtain telescopic guide rail. The device comprises an inner guide rail, an outer guide rail, a first rotating wheel, a second rotating wheel, a conveyor belt and a curtain guide rail pulley; one end of the inner guide rail is nested in the outer guide rail, and the inner guide rail and the outer guide rail can relatively stretch and slide; the first rotating wheel and the second rotating wheel are respectively arranged at two ends of the curtain telescopic guide rail; the conveyor belt is annular and sleeved outside the first rotating wheel and the second rotating wheel; the conveyer belt is connected between first rotation wheel and second rotation wheel, makes first rotation wheel and second rotation wheel transmission connection, and the conveyer belt is located outer guide rail and interior guide rail, and curtain rail coaster is connected with the conveyer belt, and stretches out outer guide rail and interior guide rail outward, and the guide rail coaster can follow the axial displacement of outer guide rail and interior guide rail under the drive of conveyer belt. The threading through holes on the guide rail pulleys are convenient for adjusting the length of the belt or rope in the curtain guide rail; the pulley can run transversely and longitudinally by the arrangement of the plurality of groups of pulleys; the guide rail fixing device can conveniently adjust the length of the guide rail of the telescopic rod.

Description

Telescopic guide rail for curtain
Technical Field
The invention belongs to the technical field of curtains, and particularly relates to a curtain telescopic guide rail.
Background
Most curtain guide rails in the current market need to be measured for size and then produced according to the size or modified by professionals during specific application, the customization production period is long, inconvenience is caused to the installation of the curtain rod, and waste in the cutting of the curtain rod is easily caused; and once the length of the curtain rail is determined, the curtain rail can only be used on a corresponding window, and once the window size is changed due to decoration and other reasons, the curtain rail with the original size cannot be used continuously or cannot be adjusted, so that waste is generated. The adoption of the curtain telescopic rod guide rail can well solve the problems. However, the adoption of the telescopic rod guide rail also needs to solve the problem of how to fix the telescopic rod guide rail; the telescopic rod guide rail faces the problem that the length of the telescopic rod guide rail is inconvenient to adjust when the fixing function is realized; the telescopic rod guide rail is difficult to realize the problems of smooth transition of the inner rail, the outer rail and the fixing device between the inner rail and the outer rail when being matched with other transmission parts. Furthermore, when the guide rail is telescopic through the inner guide rail and the outer guide rail, the inner guide rail and the outer guide rail have height differences, the inner structure is complex after the inner guide rail and the outer guide rail are matched, the four-wheel structure on the same plane of the common pulley is difficult to be installed on the two guide rails to be stably transited and transversely and longitudinally run in a smooth mode, the curtain guide rail is damaged easily for a long time, and particularly the electric curtain guide rail is more easily damaged. In addition, the existing curtains are usually electric curtains, and the curtains can be opened and closed in a time-saving and labor-saving mode through pulleys. Therefore, the window curtain with the telescopic guide rail, the pulley mechanism, the electric mechanism and the like generally has the parts of the rope and the synchronous belt to realize the functions of stretching, time-saving and labor-saving opening and closing of the window curtain and the like, but the lengths of the conveying mechanisms of the rope and the synchronous belt in the window curtain guide rail are difficult to adjust, and if the adjusting mechanism is additionally arranged, the structural complexity of the window curtain guide rail is increased, and the size of the window curtain guide rail is enlarged, so that the window curtain guide rail is not beneficial to practical application and attractive products.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a curtain telescopic guide rail.
The embodiment provided by the invention is characterized in that the curtain telescopic guide rail comprises an inner guide rail, an outer guide rail, a first rotating wheel, a second rotating wheel, a conveyor belt and a curtain guide rail pulley; one end of the inner guide rail is nested and arranged in the outer guide rail, and the inner guide rail and the outer guide rail can relatively stretch and slide; the first rotating wheel and the second rotating wheel are respectively arranged at two ends of the curtain telescopic guide rail; the conveyor belt is annular and sleeved outside the first rotating wheel and the second rotating wheel; the conveyer belt is connected between the first rotating wheel and the second rotating wheel, so that the first rotating wheel is in transmission connection with the second rotating wheel, the conveyer belt is positioned in the outer guide rail and the inner guide rail, the curtain guide rail pulley is connected with the conveyer belt and stretches out of the outer guide rail and the inner guide rail, and the curtain guide rail pulley can move along the axial direction of the outer guide rail and the inner guide rail under the driving of the conveyer belt.
Preferably, the curtain telescopic guide rail further comprises a curtain guide rail fixing device, wherein the curtain guide rail fixing device comprises a guide sleeve, and the guide sleeve is hollow tubular with two open ends; the guide sleeve is sleeved outside the joint of the outer guide rail and the inner guide rail, the connecting end of the outer guide rail is inserted into the guide sleeve from the second end of the guide sleeve and matched with the guide sleeve, the free end of the outer guide rail extends out of the guide sleeve, the inner guide rail is inserted into the guide sleeve from the first end of the guide sleeve and matched with the guide sleeve, the connecting end of the inner guide rail is inserted into the outer guide rail, the free end of the inner guide rail extends out of the guide sleeve, and the curtain guide rail pulley can pass through the guide sleeve when moving between the outer guide rail and the inner guide rail.
Preferably, a first supporting surface and a second supporting surface are formed on the bottom surface of the guide sleeve, the first supporting surface extends inwards from the first end of the guide sleeve along the axial direction of the guide sleeve, the second supporting surface extends inwards from the second end of the guide sleeve along the axial direction of the guide sleeve, the first supporting surface is higher than the second supporting surface, and a step is formed at the joint of the first supporting surface and the second supporting surface; the first supporting surface supports the inner guide rail, the second supporting surface supports the outer guide rail, the outer guide rail is abutted to the step, and the height difference of the bottom surfaces of the outer guide rail and the inner guide rail is matched with the height difference of the second supporting surface and the first supporting surface.
Preferably, the bottom surface of the guide sleeve is provided with a through groove penetrating through the first supporting surface and the second supporting surface, the bottom of the inner guide rail is provided with a first sliding opening along the axial direction, the bottom of the outer guide rail is provided with a second sliding opening along the axial direction, and the first sliding opening is communicated with the second sliding opening; the two ends of the through groove are respectively communicated with the first sliding opening and the second sliding opening.
Preferably, the through groove comprises a first through section and a second through section, the first through section and the second through section are communicated, and the positions of the first through section and the second through section respectively correspond to the positions of the first supporting surface and the second supporting surface; the width of the first through section close to the first end of the guide sleeve is larger than that of the first sliding opening, and the width of the first through section close to the second through section is adaptive to that of the first sliding opening; the width of the second through section is adapted to the width of the second sliding opening.
Preferably, the curtain rail pulley is rotatably provided with a plurality of second pulleys, the guide sleeve further comprises a transition table, the transition table protrudes upwards relative to the first sliding supporting surface and extends outwards along the axial direction of the guide sleeve from the joint of the first sliding supporting surface and the second sliding supporting surface; the second sliding supporting surface is arranged on the inner surface of the bottom of the outer guide rail, extends axially from the connecting end of the outer guide rail along the other end of the outer guide rail, and is higher than the inner surface of the bottom of the outer guide rail; when the outer guide rail is matched with the guide sleeve, the transition table is in butt joint with the second sliding supporting surface in the axial direction of the guide sleeve, the height of the second sliding supporting surface is higher than that of the transition table, and the second pulley can slide upwards from the transition table to the second sliding supporting surface or downwards from the second sliding supporting surface to the transition table.
Preferably, a first guide rail and a second guide rail are formed at the upper part of the guide sleeve, the first guide rail and the second guide rail are respectively positioned above the first supporting surface and the second supporting surface and extend along the axial direction of the guide sleeve, and the first guide rail and the second guide rail are connected and a step is also arranged at the connection part of the first guide rail and the second guide rail; the first guide rail is matched with the top end of the inner guide rail to enable two sides of the inner guide rail to be fixed relative to the guide sleeve, and the second guide rail is matched with the top end of the outer guide rail to enable two sides of the outer guide rail to be fixed relative to the guide sleeve.
Preferably, a transition surface is arranged on the outer surface of the bottom surface of the guide sleeve, the transition surface is positioned on the back surface of the first supporting surface, one end of the transition surface, which is close to the joint of the first supporting surface and the second supporting surface, is matched with the outer guide rail, and the other end of the transition surface is matched with the inner guide rail; the height difference between one end and the other end of the transition surface matched with the outer guide rail is matched with the height difference between the inner guide rail and the outer guide rail.
Preferably, the curtain rail fixing device further comprises a fixing component, wherein the fixing component penetrates through the shell of the guide sleeve from the outside of the guide sleeve, and partially stretches into the guide sleeve; the fixing component is connected with the inner guide rail and/or the outer guide rail and fixes the inner guide rail and/or the outer guide rail relative to the guide sleeve.
Preferably, the fixing component is a fixing bolt, the guide sleeve is further provided with a fixing bolt hole matched with the fixing bolt, the fixing bolt hole penetrates through the guide sleeve, and the fixing bolt can extend into the guide sleeve through the fixing bolt hole to fix the inner guide rail; or (b)
The fixing assembly comprises a fixing bolt and a fixing plate, the fixing plate is arranged in the guide sleeve, the guide sleeve and the fixing plate are both provided with fixing bolt holes matched with the fixing bolt, and the fixing plate is in the state that the fixing bolt is in rotary fit with the fixing bolt holes, and the inner guide rail is pressed and fixed by inward movement or is clamped and fixed between the fixing plate and the guide sleeve by outward movement.
Preferably, the curtain rail pulley comprises a pulley body, a plurality of first pulleys and a plurality of second pulleys, wherein the first pulleys and the second pulleys are rotatably connected to the pulley body, the pulley body comprises an upper pulley body and a lower pulley body connected with the upper pulley body, the first pulleys and the second pulleys are arranged on two sides of the upper pulley body, the bottoms of the first pulleys form a first sliding supporting surface, the bottoms of the second pulleys form a second sliding supporting surface, and the second sliding supporting surface is higher than the first sliding supporting surface; the curtain rail pulley is characterized in that a first sliding supporting surface is arranged in the inner guide rail, a second sliding supporting surface is arranged in the outer guide rail, one of the first pulley and the second pulley is supported on the first sliding supporting surface when the curtain rail pulley slides in the inner guide rail, the other of the first pulley and the second pulley is supported on the second sliding supporting surface when the curtain rail pulley slides in the outer guide rail, and the height difference between the first sliding supporting surface and the second sliding supporting surface is matched with the height difference between the second sliding supporting surface and the first sliding supporting surface.
Preferably, the first pulleys and the corresponding second pulleys are coaxial or the rotating shafts are parallel to each other, the first pulleys and the second pulleys are arranged in a dislocation manner in the axial direction of the first pulleys and the second pulleys, and correspondingly, the first sliding supporting surfaces and the second sliding supporting surfaces are arranged in a dislocation manner in the axial direction of the first pulleys and the second pulleys.
Preferably, the curtain rail pulley further comprises a first guide wheel rotatably connected to the upper pulley body, the first guide wheel transversely penetrates through the upper pulley body and protrudes outwards in the transverse direction along a side surface opposite to the upper pulley body, the first guide wheel rotates in the transverse direction, and the first guide wheel is higher than the second sliding supporting surface;
the curtain guide rail pulley further comprises a second guide wheel, the second guide wheel is arranged at the top end of the upper pulley main body and can rotate in the transverse direction, and the wheel edge of the second guide wheel protrudes outwards relative to the side surface of the upper pulley main body in the transverse direction;
the second guide wheel is higher than the first guide wheel, and the radius of the second guide wheel is different from that of the first guide wheel;
The curtain guide pulley is characterized in that a first guide groove is formed in the inner guide rail, a second guide groove is formed in the outer guide rail, when the curtain guide pulley slides in the inner guide rail, one of the first guide wheel and the second guide wheel is located in the first guide groove and matched with the first guide groove, when the curtain guide pulley slides in the outer guide rail, the other of the first guide wheel and the second guide wheel is located in the second guide groove and matched with the second guide groove, the widths of the first guide groove and the second guide groove are different, and the width difference between the first guide groove and the second guide groove is matched with the diameter difference between the first guide wheel and the second guide wheel.
Preferably, the curtain rail pulley comprises a pulley main body and a plurality of pulleys, wherein the pulley main body comprises an upper pulley main body and a lower pulley main body connected with the upper pulley main body, the plurality of pulleys are rotatably arranged on the upper pulley main body, a first threading through hole is formed in the upper pulley main body, and a second threading through hole is formed in the lower pulley main body; the conveyor belt comprises a first conveyor belt and a second conveyor belt, the second conveyor belt is meshed with the second rotating wheel, the first conveyor belt is a rope, and the first conveyor belt and the second conveyor belt are connected in an annular shape and are sleeved on the first rotating wheel and the second rotating wheel so that the first rotating wheel and the second rotating wheel are in transmission fit; the curtain guide rail pulley is connected with the first conveyor belt, the curtain guide rail pulley moves on the outer guide rail and/or the inner guide rail under the drive of the first conveyor belt, the upper pulley main body of the curtain guide rail pulley can slide in the outer guide rail and/or the inner guide rail, the lower pulley main body of the curtain guide rail pulley is positioned outside the outer guide rail and the inner guide rail, and the first conveyor belt sequentially penetrates through the first threading through hole and the second threading through hole and is fixed on the curtain guide rail pulley.
Preferably, the first conveyor belt comprises a first rope section and a second rope section, the first rope section and the second rope section are separated, a first end of the first rope section is connected with a first end of the second conveyor belt, a second end of the first rope section penetrates through the first threading through hole and the second threading through hole and is fixed on the curtain guide pulley, a first end of the second rope section is connected with a second end of the second conveyor belt, and a second end of the second rope section penetrates through the first threading through hole and the second threading through hole and is fixed on the curtain guide pulley.
Preferably, the curtain rail pulley further comprises a threading fixing device, wherein the threading fixing device is arranged on the lower pulley body and located on one side of the second threading through hole or is arranged in the second threading through hole, and the threading fixing device fixes the second end of the first rope section and the second end of the second rope section on the curtain rail pulley.
Preferably, the second threading through hole is arranged on the lower pulley main body in the vertical direction of the threading bolt hole, the second threading through hole comprises a second through hole upper opening and a second through hole lower opening, and the second through hole lower opening is arranged at the bottom of the lower pulley main body; the threading fixing device comprises a threading bolt and a threading nut, the threading bolt can be matched with the second threading through hole, and the threading nut can be matched with an upper opening of the second through hole; the cooperation of the threading bolt and the threading nut secures the second end of the first cord segment and the second end of the second cord segment to the curtain rail sled.
Preferably, part of the first conveyor belt is distributed on two sides of the pulley main body of the curtain rail pulley.
Preferably, a third threading through hole is further formed in the pulley main body of the curtain rail pulley, the third threading through hole transversely penetrates through the pulley main body of the curtain rail pulley, and the first conveyor belt sequentially penetrates through the first threading through hole, the third threading through hole and the second threading through hole.
Preferably, the first threading through hole comprises a first end opening and a second end opening communicated with the first end opening, the first end opening is arranged on one side surface of the upper pulley main body, and the second end opening is arranged on the other side surface of the upper pulley main body; the first end is opened at one side surface of the upper pulley main body and is higher than the pulley on the same side surface and the pulley outward protruding part on the same side surface, and the second end is opened at the other side surface of the upper pulley main body and is lower than the pulley on the same side surface and the pulley outward protruding part on the same side surface; the conveyor belt part between the first end opening and the first rotating wheel and between the first end opening and the second rotating wheel is higher than the pulley on the same side and the outwards protruding part of the pulley on the same side.
Preferably, the first threading through hole is an arc through hole and transversely penetrates through the pulley main body, and the first end opening and the second end opening are arranged on two sides of the pulley main body in a staggered mode.
The curtain telescopic guide rail provided by the invention is provided with the curtain guide rail pulley, the threading through holes on the curtain guide rail pulley are matched with the curtain guide rail to avoid increasing the size of the guide rail when the guide rail is telescopic, and the pulley through holes extend out of the guide rail and are opened and closed by the fixed structure, so that the length of a belt or a rope in the curtain guide rail can be conveniently adjusted; the arrangement of a plurality of groups of pulleys on the curtain rail pulley can still enable the curtain pulley to keep horizontal and longitudinal smooth running under the condition of complex internal structure after the smooth transition of the curtain rail with uneven height and the cooperation of the curtain rail; the curtain guide rail fixing device can conveniently adjust the length of the telescopic rod guide rails, and the two telescopic rod guide rails can be limited to retract inwards to move far through the cooperation of the fixing device and the first sliding rail.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.
FIG. 1 is a schematic front view of a window curtain rail fixing apparatus according to an embodiment of the present invention;
Fig. 2 is a schematic bottom view of a curtain rail fixing device according to an embodiment of the present invention;
FIG. 3 is a schematic bottom view of a window curtain rail fixing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a fixing assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of the curtain rail;
FIG. 6 is a cross-sectional view A-A;
FIG. 7 is a schematic view of the portion of the inner and outer rails engaged with the curtain rail fastening apparatus;
FIG. 8 is a schematic view of a portion of the outer rail and curtain rail fastening arrangement engaged;
fig. 9 is a schematic view of the structure of the inside of the curtain rail;
FIG. 10 is a schematic view of a curtain rail sled and securing assembly;
FIG. 11 is a schematic top view of a curtain rail pulley;
fig. 12 is a schematic diagram of a front view structure of a curtain slider according to an embodiment of the present invention;
FIG. 13 is a schematic view of the curtain runner in a configuration where the inner rail and the outer rail are mated;
FIG. 14 is a schematic view of the structure of the curtain runner in the inner rail;
fig. 15 is a schematic view of the structure of the curtain rail when the curtain rail is positioned on the outer rail.
In the figure: the curtain guide fixing device 1, an inner guide 2, an outer guide 3, a curtain guide pulley 4, a conveyor belt 5, a first rotating wheel 6 and a second rotating wheel;
The guide sleeve 101, the first supporting surface 102, the second supporting surface 103, the first guide rail 104, the second guide rail 105, the first matching surface 106, the second matching surface 107, the through groove 108, the first through section 109, the second through section 110, the transition surface 111, the transition table 112, the fixing assembly 113, the fixing bolt 114, the fixing bolt hole 115, the T-shaped nut 116 and the limiting part 117117;
a first sliding opening 201, a first sliding supporting surface 202, a first guiding groove 203, a second guiding groove 204, a second sliding opening 301, and a second sliding supporting surface 302;
the pulley body 401, the first pulley 402, the second pulley 403, the first guide wheel 404, the second guide wheel 405, the outer pulley 406, the first through-hole 407, the second through-hole 408, the third through-hole 409, the wire table 410, the wire fixing device 411, the wire bolt 4111, the wire nut 4112, the first end opening 4071, the second end opening 4072, the first through-hole upper opening 4081, the first through-hole lower opening 4082;
a rope 501, a timing belt 502, and a meshing portion 503.
Description of the embodiments
In order that the invention may be understood more fully, the invention will be described with reference to the accompanying drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-15, in an embodiment of the present invention, a telescopic rail for a window curtain includes an inner rail 2, an outer rail 3, a first rotating wheel 6, a second rotating wheel 7, a conveyor belt 5 and a pulley 4 for the window curtain rail; one end of the inner guide rail 2 is nested and arranged in the outer guide rail 3, and the inner guide rail 2 and the outer guide rail 3 can relatively stretch and slide; the first rotating wheel 6 and the second rotating wheel 7 are respectively arranged at two ends of the curtain telescopic guide rail; the conveyor belt is annular and sleeved outside the first rotating wheel 6 and the second rotating wheel 7; the conveyer belt 5 is connected between the first rotating wheel 6 and the second rotating wheel 7, so that the first rotating wheel 6 and the second rotating wheel 7 are in transmission connection, the conveyer belt 5 is positioned in the outer guide rail 3 and the inner guide rail 2, the curtain guide rail pulley 4 is connected with the conveyer belt and extends out of the outer guide rail 3 and the inner guide rail 2, and the curtain guide rail pulley 4 can axially move along the outer guide rail 3 and the inner guide rail 2 under the drive of the conveyer belt 5.
Referring to fig. 5 and 9, in the preferred embodiment, the telescopic rail of the curtain further includes a curtain rail fixing device 1, the curtain rail fixing device 1 includes a guide sleeve 101, and the guide sleeve 101 is a hollow tube shape with two open ends; the guide sleeve 101 is sleeved outside the joint of the outer guide rail 3 and the inner guide rail 2, the connecting end of the outer guide rail 3 is inserted into the guide sleeve 101 from the second end of the guide sleeve 101 and matched with the guide sleeve 101, the free end of the outer guide rail 3 extends out of the guide sleeve 101, the inner guide rail 2 is inserted into the guide sleeve 101 from the first end of the guide sleeve 101 and matched with the guide sleeve 101, the connecting end of the inner guide rail 2 is inserted into the outer guide rail 3, the free end of the inner guide rail 2 extends out of the guide sleeve 101, and the curtain guide pulley 4 can pass through the guide sleeve 101 when moving between the outer guide rail 3 and the inner guide rail 2. Further, the upper main body of the curtain rail pulley 4 is located inside the outer rail 3 and the inner rail 2, and the lower main body of the curtain rail pulley 4 is located outside the outer rail 3 and the inner rail 2, and the upper main body and the lower main body of the curtain rail pulley 4 move along both ends of the inner rail 2 and the outer rail 3. The length of the conveyor belt 5 is fixed in the use state, so that the curtain guide rail can be limited to extend outwards, and the telescopic rod guide rail can be fixed by being matched with the curtain guide rail fixing device 1 to prevent the telescopic rod guide rail from extending outwards and shrinking inwards. The free ends of the outer rail 3 and the inner rail 2 refer to the ends of the outer rail 3 and the inner rail 2 with respect to the mating guide sleeve 101.
Referring to fig. 5 and 9, in use, the second supporting surface 103 may be matched with the outer rail 3, the step at the junction of the first supporting surface 102 and the second supporting surface 103 may limit the outer rail 3, the first supporting surface 102 may be matched with the inner rail 2, the inner rail 2 may slide along the first supporting surface 102 from the first end of the guide sleeve 101 and extend into the telescopic rod outer rail 3, the position of the inner rail 2 extending into the outer rail 3 is adjusted to achieve the required curtain rail length, then the curtain rail may be fixed by the fixing component 113, and the fixing component 113 may limit the inner rail 2 and the outer rail 3 to shrink inwards relatively by matching with the guide sleeve 101. The curtain rail fixing device 1 can be also matched with curtain rail conveying mechanisms such as a conveying belt or a conveying rope, and the like, and the curtain rail fixing device 1 and the curtain rail conveying mechanism can fix the curtain telescopic rod rail to prevent the curtain telescopic rod rail from extending outwards and contracting inwards because the length of the curtain rail conveying mechanism is fixed when the curtain rail conveying mechanism is in a use state.
Referring to fig. 1, 5 and 6, in a preferred embodiment, a first supporting surface 102 and a second supporting surface 103 are formed on the bottom surface of the guide sleeve 101, the first supporting surface 102 extends inward along the axial direction of the guide sleeve 101 from the first end of the guide sleeve 101, the second supporting surface 103 extends inward along the axial direction of the guide sleeve 101 from the second end of the guide sleeve 101, the first supporting surface 102 is connected with the second supporting surface 103, the first supporting surface 102 is higher than the second supporting surface 103, and a step is formed at the connection position of the first supporting surface 102 and the second supporting surface 103; the first supporting surface 102 supports the inner guide rail 2, the second supporting surface 103 supports the outer guide rail 3, the outer guide rail 3 is abutted to the step, and the height difference of the bottom surfaces of the outer guide rail 3 and the inner guide rail 2 is matched with the height difference of the second supporting surface 103 and the first supporting surface 102. Abutment here is understood to mean that the outer rail 3 is connected to a step, which resists movement of the outer rail 3 towards the first end of the guide sleeve 111. The first supporting surface 102 is higher than the second supporting surface 103 with reference to the bottom surface of the guide sleeve 101. The reference to the elevation in this application is to the plane of the outer surface toward the bottom of the sleeve 101.
Referring to fig. 7, in a preferred embodiment, a through groove 108 penetrating through the first supporting surface 102 and the second supporting surface 103 is formed on the bottom surface of the guide sleeve 101, a first sliding opening 201 is formed on the bottom of the inner rail 2 along the axial direction, a second sliding opening 301 is formed on the bottom of the outer rail 3 along the axial direction, and the first sliding opening 201 is communicated with the second sliding opening 301; both ends of the through groove 108 communicate with the first slide opening 201 and the second slide opening 301, respectively. Further, the first sliding opening 201 is wider than the second sliding opening 301 and is a rectangular opening, and the first sliding opening 201 and the second sliding opening 301 are respectively arranged at the bottom of the inner rail 2 and at the middle position of the bottom of the inner rail 2. The first slide opening 201 and the second slide opening 301 are communicated with each other and each communicate with the through groove 108, so that a curtain rail member, such as the curtain rail pulley 4, which partially protrudes outside the curtain rail, can pass through the guide housing 101 and move between the inner rail 2 and the outer rail 3.
Referring to fig. 7, in the preferred embodiment, the through slot 108 includes a first through section 109 and a second through section 110, the first through section 109 and the second through section 110 are communicated, and positions of the first through section 109 and the second through section 110 respectively correspond to positions of the first supporting surface 102 and the second supporting surface 103; the width of the first through section 109 near the first end of the guide sleeve 101 is larger than that of the first sliding opening 201, and the width of the first through section 109 near the second through section 110 is matched with that of the first sliding opening 201; the width of the second through section 110 corresponds to the width of the second sliding opening 301. Further, the width of the first sliding opening 201 is larger than that of the second sliding opening 301, and the first sliding opening 201 and the second sliding opening 301 are rectangular openings, and are respectively arranged at the bottom of the inner guide rail 2 and the middle position of the bottom of the inner guide rail 2, and the width of the first sliding opening 201 refers to the distance between two sides of the first sliding opening parallel to the axial direction of the inner guide rail 2; the width of the second sliding opening 301 refers to the distance between its two sides parallel to the axial direction of the outer rail 3. In use, the width of the first through section 109 near the first end of the guide sleeve 101 is larger than the first sliding opening 201 of the inner rail 2, and the width of the first through section 109 near the second through section 110 is adapted to the width of the first sliding opening 201 of the inner rail; the width of the second through section 110 corresponds to the width of the first sliding opening 201 of the outer rail 3. So that the communication place among the through groove 108 of the guide sleeve 101, the first sliding opening 201 of the inner guide rail 2 and the first sliding opening 201 of the outer guide rail 3 is smoother, and the curtain guide rail components such as the curtain guide rail pulley 4 and the like pass through the communication place more smoothly.
Referring to fig. 8, in the preferred embodiment, the curtain rail pulley 4 is rotatably mounted with a plurality of second pulleys 403, and the guide sleeve 101 further includes a transition table 112, the transition table 112 protrudes upward relative to the first sliding support surface 202 and extends axially outward from the junction of the first sliding support surface 202 and the second sliding support surface 302 along the guide sleeve 101; the second sliding supporting surface 302 is arranged on the inner surface of the bottom of the outer guide rail 3, the second sliding supporting surface 302 extends axially from the connecting end of the outer guide rail 3 along the other end of the outer guide rail 3, and the second sliding supporting surface 302 is higher than the inner surface of the bottom of the outer guide rail 3; when the outer guide rail 3 is matched with the guide sleeve 101, the transition table 112 is in butt-joint matching with the second sliding supporting surface 302 in the axial direction of the guide sleeve 101, the second sliding supporting surface 302 is higher than the transition table 112, and the second pulley 403 can slide upwards from the transition table 112 onto the second sliding supporting surface 302 or downwards from the second sliding supporting surface 302 onto the transition table 112. The height of the transition table 112 (compared to the first support surface 102) is lower than the height of the pulley support table 302 (compared to the inner bottom surface of the outer rail 3), and the height of the transition table 112 is typically one-half the height of the pulley support table 302. The following arrangement can solve: when the height of the pulley support table 302 is higher, the problem that the pulleys of the curtain rail pulley 4 are not stable when the pulleys support table 302 are up and down can be solved, for example, when the height of the pulley support table 302 is higher than the pulley radius of the curtain rail pulley 4, the running of the curtain rail pulley 4 can be hindered. The transition table 112 can make the upper and lower pulleys of the curtain rail pulley 4 support the table 302 more stable and smooth.
Referring to fig. 2 and 6, in the preferred embodiment, a first guide rail 104 and a second guide rail 105 are formed at the upper portion of the guide sleeve 101, the first guide rail 104 and the second guide rail 105 are respectively located above the first supporting surface 102 and the second supporting surface 103 and extend along the axial direction of the guide sleeve 101, the first guide rail 104 and the second guide rail 105 are connected, and a step is also provided at the connection position of the first guide rail 104 and the second guide rail 105; the first guide rail 104 is matched with the top end of the inner guide rail 2 to fix two sides of the inner guide rail 2 relative to the guide sleeve 101, and the second guide rail 105 is matched with the top end of the outer guide rail 3 to fix two sides of the outer guide rail 3 relative to the guide sleeve 101. The first guide rail 104 and the second guide rail 105 being located above the first support surface 102 and the second support surface 103, respectively, and extending in the axial direction of the guide sleeve 101 is understood to mean that the first guide rail 104 and the second guide rail 105 are inside the guide sleeve 101 and remote from the corresponding top end portions of the first support surface 102 and the second support surface 103. When the guide sleeve is used, the shape of the first guide rail 104 is matched with the top end of the inner guide rail 2, the shape of the second guide rail 105 is matched with the top end of the outer guide rail 3, and the step can be abutted against the connecting end of the outer guide rail 3, so that the limit of the guide sleeve 101 on the two sides of the inner guide rail 2, the two sides of the outer guide rail 3 and the connecting end is achieved.
Referring to fig. 2 and 7, in a preferred embodiment, a transition surface 111 is disposed on the outer surface of the bottom surface of the guide sleeve 101, the transition surface 111 is located on the back surface of the first supporting surface 102, one end of the transition surface 111 near the junction between the first supporting surface 102 and the second supporting surface 103 is matched with the outer guide rail 3, and the other end is matched with the inner guide rail 2; the difference in height between the end of the transition surface 111 that mates with the outer rail 3 and the other end is compatible with the difference in height between the inner rail 2 and the outer rail 3. The thickness of the bottom surface of the guide sleeve 101 gradually becomes thinner from the joint of the first supporting surface 102 and the second supporting surface 103 to the first end of the guide sleeve 101, the transition surface 111 is arranged on the outer surface of the bottom surface of the guide sleeve 101, the transition surface 111 is positioned on the back surface of the first supporting surface 102 and on two sides of the through groove 108, when the bottom surface of the guide sleeve 101 is placed on a horizontal plane, the transition surface 111 is obliquely arranged relative to the horizontal plane, and the height of the transition surface 111 near the joint of the first supporting surface 102 and the second supporting surface 103 is higher than the height of the transition surface 111 near the first end of the guide sleeve 101. The other end is matched with the inner guide rail 2, and the other end of the transition surface 111 is contacted with the outer surface of the bottom of the inner guide rail 2 but can slide relatively or be slightly separated. The arrangement of the transition surface 111 enables the outer pulley 406 of the curtain rail pulley 4 to smoothly transition between the guide sleeve 101 and the inner rail 2 and the outer rail 3 when the curtain rail is matched with the curtain rail pulley 4 for use.
Referring to fig. 1, 2, 4 and 6, in a preferred embodiment, the curtain rail fixing device 1 further includes a fixing assembly 113, wherein the fixing assembly 113 passes through the outer casing of the guide sleeve 101 from outside the guide sleeve 101, and partially extends into the guide sleeve 101; the fixing assembly 113 is connected to the inner rail 2 and/or the outer rail 3 to fix the inner rail 2 and/or the outer rail 3 with respect to the guide housing 101. Preferably from the top surface of the guide sleeve 101 through the outer shell of the guide sleeve 101. Further, the fixing assembly 113 includes a screw connection fixing, a clamping fixing, a snap spring fixing, a clamping fixing structure, and the like.
Referring to fig. 1, 2, 4 and 6, in the preferred embodiment, the fixing assembly 113 is a fixing bolt 114, the guide sleeve 101 is further provided with a fixing bolt 114 hole matched with the fixing bolt 114, the fixing bolt 114 hole penetrates through the guide sleeve 101, and the fixing bolt 114 can extend into the guide sleeve 101 through the fixing bolt 114 hole to fix the inner rail 2; or (b)
The fixing assembly 113 comprises a fixing bolt 114 and a fixing plate, the fixing plate is arranged in the guide sleeve 101, the guide sleeve 101 and the fixing plate are both provided with fixing bolt 114 holes matched with the fixing bolt 114, and the fixing plate is used for pressing the inner guide rail 2 in an inward movement mode or clamping and fixing the inner guide rail 2 between the fixing plate and the guide sleeve 101 in an outward movement mode under the rotation fit of the fixing bolt 114 and the fixing bolt 114 holes. Further, the fixing assembly 113 is a bolt fixing assembly, the bolt fixing assembly comprises a fixing bolt 114, a fixing bolt hole 115 and a T-shaped nut 116, the upper part of the T-shaped nut 116 is smaller than the lower part, a limiting part 117 with an opening at one hollow end is arranged in the guide sleeve 101, the opening faces the guide sleeve 101, the upper part of the T-shaped nut 116 can be nested in the limiting part 117, and the fixing bolt 114 penetrates through the limiting part and is connected with the T-shaped nut 116 through the fixing bolt hole 115; when the fixing bolt 114 is rotatably engaged with the T-nut 116 in the fixing bolt hole 115, the upper portion of the T-nut 116 is limited by the limiting portion 117, and the T-nut 116 is movable outward of the guide bush 101. The T-nut 116 better secures the inner rail 2 and the guide sleeve 101.
Referring to fig. 12 to 15, in a preferred embodiment, the curtain rail pulley 4 includes a pulley body 401, a plurality of first pulleys 402 and a plurality of second pulleys 403, the plurality of first pulleys 402 and the plurality of second pulleys 403 are rotatably connected to the pulley body 401, the pulley body 401 includes an upper pulley body 401 and a lower pulley body 401 connected to the upper pulley body 401, the first pulleys 402 and the second pulleys 403 are disposed on two sides of the upper pulley body 401, the bottoms of the plurality of first pulleys 402 form a first sliding supporting surface 202, the bottoms of the plurality of second pulleys 403 form a second sliding supporting surface 302, and the second sliding supporting surface 302 is higher than the first sliding supporting surface 202; the first sliding supporting surface 202 is arranged in the inner guide rail 2, the second sliding supporting surface 302 is arranged in the outer guide rail 3, one of the first pulley 402 and the second pulley 403 is supported on the first sliding supporting surface 202 when the curtain guide rail pulley 4 slides in the inner guide rail 2, the other of the first pulley 402 and the second pulley 403 is supported on the second sliding supporting surface 302 when the curtain guide rail pulley 4 slides in the outer guide rail 3, and the height difference between the first sliding supporting surface 202 and the second sliding supporting surface 302 is matched with the height difference between the second sliding supporting surface 302 and the first sliding supporting surface 202.
Technical principle of the embodiment: the first sliding supporting surface 202 and the second sliding supporting surface 302 are respectively arranged on the inner guide rail 2 and the outer guide rail 3; the first pulley 402 of the curtain pulley forms a first sliding surface, and the second pulley 403 forms a second sliding surface; the height difference between the first sliding support surface 202 and the second sliding support surface 302 is adapted to the height difference between the second sliding surface and the first sliding surface, so as to eliminate the influence of the height difference between the inner rail 2 and the outer rail 3 on the movement of the curtain pulley after the inner rail 2 and the outer rail 3 are matched.
The bottom of the first pulley 402 and the bottom of the second pulley 403 refer to the pulley end supported by the curtain pulley in use, the first sliding surface can be understood as that the pulley ends supported by the first pulleys 402 are all on the same horizontal plane, and the second sliding surface can be understood as that the pulley ends supported by the second pulleys 403 are all on the same horizontal plane. The first sliding support surface 202 is a support surface provided in the inner rail 2 and cooperates with the first sliding surface to support the bottom of the first pulley when the curtain runner moves in the rail. The second sliding support surface 302 is a support surface disposed in the outer rail 3 and cooperates with the second sliding surface, and the support surface supports the bottom of the second pulley when the curtain runner moves in the rail.
Referring to fig. 12 to 15, in the preferred embodiment, the first pulley 402 and the corresponding second pulley 403 are coaxial or have axes of rotation parallel to each other, and the first pulley 402 and the second pulley 403 are disposed offset in the axial direction of the first pulley 402 and the second pulley 403, and accordingly, the first sliding support surface 202 and the second sliding support surface 302 are disposed offset in the axial direction of the first pulley 402 and the second pulley 403. The pulley structure is more compact due to coaxial arrangement or parallel design of the rotating shafts, and the production and the installation are more convenient. The arrangement of the first sliding supporting surface 202 and the second sliding supporting surface 302 in a staggered manner is matched with the arrangement of the first pulley 402 and the second pulley 403, so that the problem of unstable running of the pulley between the inner guide rail 2 and the outer guide rail 3 is well solved.
Referring to fig. 12 to 15, in the preferred embodiment, the curtain rail pulley 4 further includes a first guide wheel 404, the first guide wheel 404 is rotatably connected to the upper pulley body 401, the first guide wheel 404 penetrates the upper pulley body 401 laterally and protrudes outwards in the lateral direction along the wheel edge of the first guide wheel 404 relative to the lateral surface of the upper pulley body 401, the first guide wheel 404 rotates in the lateral direction, and the first guide wheel 404 is higher than the second sliding supporting surface 302;
The curtain rail pulley 4 further comprises a second guide wheel 405, wherein the second guide wheel 405 is installed at the top end of the upper pulley body 401 and can rotate in the transverse direction, and the wheel edge of the second guide wheel 405 protrudes outwards relative to the side surface of the upper pulley body 401 in the transverse direction;
the second guide wheel 405 is higher than the first guide wheel 404, and the radius of the second guide wheel 405 is different from that of the first guide wheel 404;
the inner guide rail 2 is internally provided with a first guide groove 203, the outer guide rail 3 is internally provided with a second guide groove 204, when the curtain guide rail pulley 4 slides in the inner guide rail 2, one of the first guide wheel 404 and the second guide wheel 405 is positioned in the first guide groove 203 and matched with the first guide groove 203, when the curtain guide rail pulley 4 slides in the outer guide rail 3, the other of the first guide wheel 404 and the second guide wheel 405 is positioned in the second guide groove 204 and matched with the second guide groove 204, the widths of the first guide groove 203 and the second guide groove 204 are different, and the width difference between the first guide groove 203 and the second guide groove 204 is matched with the diameter difference between the first guide wheel 404 and the second guide wheel 405. The pulley can be transversely limited by matching the guide wheels with the guide grooves, so that the pulley transversely runs smoothly.
Referring to fig. 10 to 11, in a preferred embodiment, the curtain rail pulley 4 includes a pulley body 401 and a plurality of pulleys, the pulley body 401 includes an upper pulley body 401 and a lower pulley body 401 connected to the upper pulley body 401, the plurality of pulleys are rotatably mounted on the upper pulley body 401, a first threading through hole 407 is formed on the upper pulley body 401, and a second threading through hole 408 is formed on the lower pulley body 401; the conveyor belt 5 comprises a first conveyor belt and a second conveyor belt, the second conveyor belt is meshed with the second rotating wheel 7, the first conveyor belt is a rope, and the first conveyor belt and the second conveyor belt are connected in a ring shape and are sleeved on the first rotating wheel 6 and the second rotating wheel 7, so that the first rotating wheel 6 and the second rotating wheel 7 are in transmission fit; the curtain rail pulley 4 is connected with the first conveyor belt, and moves on the outer guide rail 3 and/or the inner guide rail 2 under the drive of the first conveyor belt, the upper pulley main body 401 of the curtain rail pulley 4 can slide in the outer guide rail 3 and/or the inner guide rail 2, the lower pulley main body 401 of the curtain rail pulley 4 is positioned outside the outer guide rail 3 and the inner guide rail 2, and the first conveyor belt sequentially passes through the first threading through hole 407 and the second threading through hole 408 and is fixed on the curtain rail pulley 4.
Referring to fig. 10 to 11, in use, the first threading through hole 407 and the second threading through hole 408 of the curtain rail pulley 4 are generally used together with the conveyor belt 5, the conveyor belt 5 may be composed of two structures, namely, a first conveyor belt and a second conveyor belt, wherein the first conveyor belt is a steel wire rope 501, the second conveyor belt is a synchronous belt 502, and the curtain rail is a curtain rail in which the outer rail 3 and the inner rail 2 can slide relatively in a telescopic manner. The wire rope 501 is threaded on the curtain rail pulley 4: passes through the first end opening 4071, the second end opening 4072, the third through-hole 409, the second through-hole upper opening 4081 and the second through-hole lower opening 4082 of the first through-hole 407, and then is fixed by the through-wire fixing device 411. The curtain rail is generally internally provided with a synchronous wheel, a driven wheel, a conveyor belt 5 and a plurality of curtain rail pulleys 4, wherein the synchronous wheel and the driven wheel are respectively fixed at two ends of the curtain rail, and a lower pulley main body 401 of the curtain rail pulley 4 extends out of the curtain rail. The synchronous belt 502 is at one end of the synchronous wheel, and the conveyor belt 5 is sequentially connected with the synchronous wheel, the curtain rail pulley 4, the driven wheel and the synchronous wheel to form a ring shape. Wherein the curtain rail trolley 4 may be provided with a plurality of connections to the wire rope 501 and the timing belt 502, any one of which is connected to the wire rope 501 through the first through-hole 407 and the second through-hole 408. When the length of the curtain rail needs to be adjusted, the threading fixing device 411 is loosened, the first threading through hole 407 of the lower pulley body 401 pulls the steel wire rope 501, the length of the steel wire rope 501 in the curtain rail is changed, the length of the curtain rail is changed, and the threading fixing device 411 is screwed after adjustment. The lead structure of the curtain guide rail pulley 4 is matched with the curtain guide rail to avoid increasing the guide rail size when the guide rail stretches. Since one end of the through hole of the lower pulley body 401 extends out of the guide rail, the length of the steel wire can be temporarily changed through the through hole of the lower pulley body 401 and the threading fixing device 411 and the adjustment operation is made easy; still further, the relative positions of the curtain rail pulley 4 and the second curtain rail pulley 4 can be quickly changed, so that the requirements of double-opening curtains can be met.
In a preferred embodiment, the first conveyor belt comprises a first rope section and a second rope section, the first rope section and the second rope section are separated, a first end of the first rope section is connected with a first end of the second conveyor belt, a second end of the first rope section passes through a first threading through hole 407 and a second threading through hole 408 and is fixed on the curtain rail pulley 4, a first end of the second rope section is connected with a second end of the second conveyor belt, and a second end of the second rope section passes through the first threading through hole 407 and the second threading through hole 408 and is fixed on the curtain rail pulley 4. Further, the first conveyor belt is a steel wire rope 501, the second conveyor belt is a synchronous belt 502, the steel wire rope 501 comprises a first steel wire rope 501 section and a second steel wire rope 501 section, the first steel wire rope 501 section and the second steel wire rope 501 section are separated, and two first threading through holes 407 and two second threading through holes 408 are correspondingly arranged; the first wire rope 501 section passes through the first through-going hole 407 and the second through-going hole 408, and the second wire rope 501 section passes through the other first through-going hole 407 and the other second through-going hole 408. The length of the steel wire rope 501 in the telescopic guide rail of the curtain can be conveniently and quickly adjusted through the arrangement.
Referring to fig. 10 to 11, in the preferred embodiment, the curtain rail pulley 4 further includes a threading fixing device 411, wherein the threading fixing device 411 is disposed on the lower pulley body 401 and located at one side of the second threading through hole 408 or the threading fixing device 411 is disposed in the second threading through hole 408, and the threading fixing device 411 fixes the second end of the first rope section and the second end of the second rope section to the curtain rail pulley 4. The threading fixing device 411 being disposed in the second threading through hole 408 means that the threading fixing device 411 is partially or entirely disposed in the second threading through hole 408 and can fix the wire rope 501 by being engaged with the second threading through hole 408. Further, the threading fixing device 411 is a hole, a ring, a threading bolt 4111 structure, a tightening structure, a clamping structure and the like which are arranged on the lower pulley body 401, and the steel wire rope 501 can be fixed on the lower pulley body 401 through the threading fixing device 411; further, the threading fixing device 411 may be omitted, and the wire rope 501 may be fixed by winding around the second threading hole 408, tying a knot, or the like.
Referring to fig. 10 to 11, in the preferred embodiment, the second threading through hole 408 is a threading bolt 4111 vertically arranged on the lower pulley body 401, the second threading through hole 408 comprises a second through hole upper opening and a second through hole lower opening 4082, and the second through hole lower opening 4082 is arranged at the bottom of the lower pulley body 401; the threading fixing device 411 comprises a threading bolt 4111 and a threading nut 4112, wherein the threading bolt 4111 can be matched with the second threading through hole 408, and the threading nut 4112 can be matched with an upper opening of the second through hole; the engagement of the threaded bolt 4111 and threaded nut 4112 secures the second end of the first cord segment and the second end of the second cord segment to the curtain rail sled 4. The wire rope 501 is better fixed in the second through hole 408 by the engagement of the threading bolt 4111 and the threading nut 4112, and the operation of adjusting the wire rope 501 can be easily performed by screwing and unscrewing the threading bolt 4111 and the threading nut 4112.
Referring to fig. 10 to 11, in the preferred embodiment, part of the first conveyor belt is distributed on both sides of the main body 401 of the curtain rail pulley 4. Further, the first conveyor belt is generally a steel wire rope 501, and the steel wire rope 501 sequentially passes through the first through-hole 407 and the second through-hole 408, and since any one of the first through-hole 407 and the second through-hole 408 is a through-hole passing through the main body 401 of the pulley transversely, the steel wire rope 501 is distributed on both sides of the main body 401 of the pulley, so that the steel wire rope 501 is easier to pull and fix.
Referring to fig. 10 to 11, in the preferred embodiment, a third through-hole 409 is further formed in the main body 401 of the curtain rail pulley 4, the third through-hole 409 transversely penetrates the main body 401 of the curtain rail pulley 4, and the first conveyor belt sequentially penetrates the first through-hole 407, the third through-hole 409 and the second through-hole 408. Further, a third through-hole 409 is generally between the first through-hole 407 and the second through-hole 408, the third through-hole 409 extending transversely through the sled body 401. The third through-hole 409 is provided to enable the wire rope 501 to fit the pulley body 401.
Referring to fig. 10 to 11, in a preferred embodiment, the first threading through hole 407 includes a first end opening 4071 and a second end opening 4072 in communication with the first end opening 4071, the first end opening 4071 on one side of the upper pulley body 401, and the second end opening 4072 on the other side of the upper pulley body 401; the first end opening 4071 is higher than the pulley on the same side and the pulley outward protruding portion on the same side of the upper pulley body 401, and the second end opening 4072 is lower than the pulley on the same side and the pulley outward protruding portion on the same side of the upper pulley body 401; the portion of the conveyor belt 5 between the first end opening 4071 to the first rotating wheel 6 and the first end opening 4071 to the second rotating wheel 7 is higher than the pulley on the same side and the pulley outward protruding portion on the same side. Wherein the pulleys of the pulley body 401 include a first pulley 402, a second pulley 403, a first guide wheel 404 and a second guide wheel 405, the first guide wheel 404 and the first guide wheel 405 are rotatably connected to the upper pulley body 401, the first guide wheel 404 penetrates the upper pulley body 401 laterally and the wheel rim of the first guide wheel 404 protrudes outwardly with respect to the side of the upper pulley body 401 in the lateral direction; the first pulley 402 and the second pulley 403 are rotatably connected to the upper pulley body 401 at both sides of the body. The pulleys on the same side are a first pulley 402 and a second pulley 403 on the same side; the pulley outward protruding portion of the same side as described above means a portion where the first guide wheel 404 and the first guide wheel 405 protrude laterally outward with respect to the side of the upper block body 401. This arrangement reduces the lateral dimension of the curtain rail pulley 4 and spaces the pulley of the curtain rail pulley 4 from the wire rope 501, avoiding the wire rope 501 from blocking and winding the curtain rail pulley 4 during operation.
Referring to fig. 10 to 11, in a preferred embodiment, the first threading through hole 407 is an arc through hole and penetrates the pulley body 401 transversely, and the first end opening 4071 and the second end opening 4072 are disposed at two sides of the pulley body 401 in a staggered manner. The first through hole 407 is an arc through hole, or the middle part of the first through hole 407 is an arc through hole; through the arrangement of the arc-shaped through holes, when the steel wire rope 501 is adjusted, the pulling is smoother; the offset arrangement of the first end opening 4071 and the second end opening 4072 reduces the lateral dimension of the curtain rail pulley 4 and optimizes the lateral and longitudinal stress conditions of the wire rope 501 and a threading through hole, so that the wire rope 501 is easier to pull and fix.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (20)

1. The curtain telescopic guide rail is characterized by comprising an inner guide rail, an outer guide rail, a first rotating wheel, a second rotating wheel, a conveyor belt and a curtain guide rail pulley; one end of the inner guide rail is nested and arranged in the outer guide rail, and the inner guide rail and the outer guide rail can relatively stretch and slide; the first rotating wheel and the second rotating wheel are respectively arranged at two ends of the curtain telescopic guide rail; the conveyor belt is annular and sleeved outside the first rotating wheel and the second rotating wheel; the conveyor belt is connected between the first rotating wheel and the second rotating wheel, so that the first rotating wheel and the second rotating wheel are in transmission connection, the conveyor belt is positioned in the outer guide rail and the inner guide rail, the curtain guide rail pulley is connected with the conveyor belt and extends out of the outer guide rail and the inner guide rail, and the curtain guide rail pulley can move along the axial direction of the outer guide rail and the inner guide rail under the drive of the conveyor belt;
The curtain guide rail pulley comprises a pulley main body, a plurality of first pulleys and a plurality of second pulleys, wherein the first pulleys and the second pulleys are rotatably connected to the pulley main body, the pulley main body comprises an upper pulley main body and a lower pulley main body connected with the upper pulley main body, the first pulleys and the second pulleys are arranged on two sides of the upper pulley main body, the bottoms of the first pulleys form a first sliding surface, the bottoms of the second pulleys form a second sliding surface, and the second sliding surface is higher than the first sliding surface; the curtain rail pulley is characterized in that a first sliding supporting surface is arranged in the inner guide rail, a second sliding supporting surface is arranged in the outer guide rail, one of the first pulley and the second pulley is supported on the first sliding supporting surface when the curtain rail pulley slides in the inner guide rail, the other of the first pulley and the second pulley is supported on the second sliding supporting surface when the curtain rail pulley slides in the outer guide rail, and the height difference between the first sliding surface and the second sliding surface is matched with the height difference between the second sliding supporting surface and the first sliding supporting surface.
2. The window covering telescoping rail of claim 1, further comprising a window covering rail fixture, the window covering rail fixture comprising a guide sleeve, the guide sleeve being hollow tubular with two ends open; the guide sleeve is sleeved outside the joint of the outer guide rail and the inner guide rail, the connecting end of the outer guide rail is inserted into the guide sleeve from the second end of the guide sleeve and matched with the guide sleeve, the free end of the outer guide rail extends out of the guide sleeve, the inner guide rail is inserted into the guide sleeve from the first end of the guide sleeve and matched with the guide sleeve, the connecting end of the inner guide rail is inserted into the outer guide rail, the free end of the inner guide rail extends out of the guide sleeve, and the curtain guide rail pulley can pass through the guide sleeve when moving between the outer guide rail and the inner guide rail.
3. The curtain guide of claim 2, wherein the bottom surface of the guide sleeve is formed with a first support surface and a second support surface, the first support surface extends inward in the axial direction of the guide sleeve from the first end of the guide sleeve, the second support surface extends inward in the axial direction of the guide sleeve from the second end of the guide sleeve, the first support surface and the second support surface are connected, the first support surface is higher than the second support surface, and a step is formed at the connection of the first support surface and the second support surface; the first supporting surface supports the inner guide rail, the second supporting surface supports the outer guide rail, the outer guide rail is abutted to the step, and the height difference of the bottom surfaces of the outer guide rail and the inner guide rail is matched with the height difference of the second supporting surface and the first supporting surface.
4. The curtain rail according to claim 3, wherein the bottom surface of the guide sleeve is provided with a through groove penetrating through the first supporting surface and the second supporting surface, the bottom of the inner rail is provided with a first sliding opening along the axial direction, the bottom of the outer rail is provided with a second sliding opening along the axial direction, and the first sliding opening is communicated with the second sliding opening; the two ends of the through groove are respectively communicated with the first sliding opening and the second sliding opening.
5. The window covering telescoping rail of claim 4, wherein the through slot comprises a first through section and a second through section, the first through section and the second through section communicating, the first through section and the second through section being positioned to correspond to the positions of the first support surface and the second support surface, respectively; the width of the first through section close to the first end of the guide sleeve is larger than that of the first sliding opening, and the width of the first through section close to the second through section is adaptive to that of the first sliding opening; the width of the second through section is adapted to the width of the second sliding opening.
6. The window covering telescoping rail of claim 3, wherein said window covering rail sled is rotatably mounted with a plurality of second pulleys, said guide sleeve further comprising a transition table that is upwardly raised relative to said first sliding support surface and extends axially outwardly of said guide sleeve from the junction of said first and second sliding support surfaces; the second sliding supporting surface is arranged on the inner surface of the bottom of the outer guide rail, extends axially from the connecting end of the outer guide rail along the other end of the outer guide rail, and is higher than the inner surface of the bottom of the outer guide rail; when the outer guide rail is matched with the guide sleeve, the transition table is in butt joint with the second sliding supporting surface in the axial direction of the guide sleeve, the height of the second sliding supporting surface is higher than that of the transition table, and the second pulley can slide upwards from the transition table to the second sliding supporting surface or downwards from the second sliding supporting surface to the transition table.
7. The curtain guide as claimed in claim 3, wherein a first guide rail and a second guide rail are formed at an upper portion of the guide housing, the first guide rail and the second guide rail are respectively located above the first support surface and the second support surface and extend in an axial direction of the guide housing, and the first guide rail and the second guide rail are connected and a step is also provided at a connection portion of the first guide rail and the second guide rail; the first guide rail is matched with the top end of the inner guide rail to enable two sides of the inner guide rail to be fixed relative to the guide sleeve, and the second guide rail is matched with the top end of the outer guide rail to enable two sides of the outer guide rail to be fixed relative to the guide sleeve.
8. The curtain guide extension rail according to claim 3, wherein a transition surface is arranged on the outer surface of the bottom surface of the guide sleeve, the transition surface is positioned on the back surface of the first supporting surface, one end of the transition surface, which is close to the joint of the first supporting surface and the second supporting surface, is matched with the outer guide rail, and the other end of the transition surface is matched with the inner guide rail; the height difference between one end and the other end of the transition surface matched with the outer guide rail is matched with the height difference between the inner guide rail and the outer guide rail.
9. The window covering telescoping rail of claim 2, wherein said window covering rail fixture further comprises a fixture assembly extending from outside said guide sleeve through a housing of said guide sleeve partially into said guide sleeve; the fixing component is connected with the inner guide rail and/or the outer guide rail and fixes the inner guide rail and/or the outer guide rail relative to the guide sleeve.
10. The curtain rail of claim 9, wherein the fixing component is a fixing bolt, the guide sleeve is further provided with a fixing bolt hole matched with the fixing bolt, the fixing bolt hole penetrates through the guide sleeve, and the fixing bolt can extend into the guide sleeve through the fixing bolt hole to fix the inner rail; or (b)
The fixing assembly comprises a fixing bolt and a fixing plate, the fixing plate is arranged in the guide sleeve, the guide sleeve and the fixing plate are both provided with fixing bolt holes matched with the fixing bolt, and the fixing plate is in the state that the fixing bolt is in rotary fit with the fixing bolt holes, and the inner guide rail is pressed and fixed by inward movement or is clamped and fixed between the fixing plate and the guide sleeve by outward movement.
11. The telescopic rail of claim 1, wherein the first pulley is coaxial with the corresponding second pulley or the rotation axes are parallel to each other, and the first pulley and the second pulley are disposed in a staggered manner in the axial direction of the first pulley and the second pulley, and correspondingly, the first sliding surface and the second sliding surface are disposed in a staggered manner in the axial direction of the first pulley and the second pulley.
12. The window covering telescoping rail of claim 1, wherein said window covering rail trolley further comprises a first guide wheel rotatably attached to said upper trolley body, said first guide wheel extending transversely through said upper trolley body and projecting laterally outwardly of a lateral edge of said first guide wheel relative to said upper trolley body, said first guide wheel rotating in a lateral direction, said first guide wheel being higher than said second sliding surface;
the curtain guide rail pulley further comprises a second guide wheel, the second guide wheel is arranged at the top end of the upper pulley main body and can rotate in the transverse direction, and the wheel edge of the second guide wheel protrudes outwards relative to the side surface of the upper pulley main body in the transverse direction;
The second guide wheel is higher than the first guide wheel, and the radius of the second guide wheel is different from that of the first guide wheel;
the curtain guide pulley is characterized in that a first guide groove is formed in the inner guide rail, a second guide groove is formed in the outer guide rail, when the curtain guide pulley slides in the inner guide rail, one of the first guide wheel and the second guide wheel is located in the first guide groove and matched with the first guide groove, when the curtain guide pulley slides in the outer guide rail, the other of the first guide wheel and the second guide wheel is located in the second guide groove and matched with the second guide groove, the widths of the first guide groove and the second guide groove are different, and the width difference between the first guide groove and the second guide groove is matched with the diameter difference between the first guide wheel and the second guide wheel.
13. The curtain rail pulley of claim 1, wherein the curtain rail pulley comprises a pulley body and a plurality of pulleys, the pulley body comprises an upper pulley body and a lower pulley body connected with the upper pulley body, the plurality of pulleys are rotatably arranged on the upper pulley body, a first threading through hole is formed in the upper pulley body, and a second threading through hole is formed in the lower pulley body; the conveyor belt comprises a first conveyor belt and a second conveyor belt, the second conveyor belt is meshed with the second rotating wheel, the first conveyor belt is a rope, and the first conveyor belt and the second conveyor belt are connected in an annular shape and are sleeved on the first rotating wheel and the second rotating wheel so that the first rotating wheel and the second rotating wheel are in transmission fit; the curtain guide rail pulley is connected with the first conveyor belt, the curtain guide rail pulley moves on the outer guide rail and/or the inner guide rail under the drive of the first conveyor belt, the upper pulley main body of the curtain guide rail pulley can slide in the outer guide rail and/or the inner guide rail, the lower pulley main body of the curtain guide rail pulley is positioned outside the outer guide rail and the inner guide rail, and the first conveyor belt sequentially penetrates through the first threading through hole and the second threading through hole and is fixed on the curtain guide rail pulley.
14. The window covering telescoping rail of claim 13, wherein the first conveyor belt comprises a first cable segment and a second cable segment, wherein the first cable segment is separated from the second cable segment, wherein the first end of the first cable segment is connected to the first end of the second conveyor belt, wherein the second end of the first cable segment is secured to the window covering rail block through the first and second throughholes, wherein the first end of the second cable segment is connected to the second end of the second conveyor belt, and wherein the second end of the second cable segment is secured to the window covering rail block through the first and second throughholes.
15. The window covering telescoping rail of claim 14, further comprising a threading fixture on the lower rail body on one side of the second through-threading aperture or disposed within the second through-threading aperture, the threading fixture securing the second end of the first cord segment and the second end of the second cord segment to the window covering rail.
16. The window covering telescoping rail of claim 15, wherein the second through-hole is a through-hole vertically disposed on the lower block body, the second through-hole comprising a second through-hole upper opening and a second through-hole lower opening, the second through-hole lower opening disposed at the bottom of the lower block body; the threading fixing device comprises a threading bolt and a threading nut, the threading bolt can be matched with the second threading through hole, and the threading nut can be matched with an upper opening of the second through hole; the cooperation of the threading bolt and the threading nut secures the second end of the first cord segment and the second end of the second cord segment to the curtain rail sled.
17. The window covering telescoping rail of claim 13, wherein a portion of said first conveyor belt is disposed on each side of the main body of said window covering rail block.
18. The window covering telescoping rail of claim 13, wherein a third through-hole is further formed in the main body of the window covering rail pulley, the third through-hole is disposed through the main body of the window covering rail pulley, and the first conveyor belt is disposed through the first through-hole, the third through-hole, and the second through-hole in sequence.
19. The window covering telescoping rail of claim 13, wherein the first threaded through hole comprises a first end opening and a second end opening in communication with the first end opening, the first end opening on one side of the upper block body and the second end opening on the other side of the upper block body; the first end is opened at one side surface of the upper pulley main body and is higher than the pulley on the same side surface and the pulley outward protruding part on the same side surface, and the second end is opened at the other side surface of the upper pulley main body and is lower than the pulley on the same side surface and the pulley outward protruding part on the same side surface; the conveyor belt part between the first end opening and the first rotating wheel and between the first end opening and the second rotating wheel is higher than the pulley on the same side and the outwards protruding part of the pulley on the same side.
20. The window covering telescoping rail of claim 19, wherein the first threading throughbore is an arcuate throughbore extending transversely through the pulley body, and the first and second end openings are offset from each other on either side of the pulley body.
CN202110827364.7A 2021-01-22 2021-07-21 Telescopic guide rail for curtain Active CN113425148B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202110827364.7A CN113425148B (en) 2021-07-21 2021-07-21 Telescopic guide rail for curtain
US17/577,814 US20220233011A1 (en) 2021-01-22 2022-01-18 Telescopic curtain guide rail
EP22152436.6A EP4032442A1 (en) 2021-01-22 2022-01-20 Telescopic curtain guide rail

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Application Number Priority Date Filing Date Title
CN202110827364.7A CN113425148B (en) 2021-07-21 2021-07-21 Telescopic guide rail for curtain

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CN116636727B (en) * 2023-05-31 2024-04-19 广东瑞克斯智能科技有限公司 Folding guide rail

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JP2001105274A (en) * 1999-09-30 2001-04-17 Brother Ind Ltd Machine tool
CN201734467U (en) * 2010-01-28 2011-02-09 佘家文 Opening and closing curtain frame
WO2021008094A1 (en) * 2019-07-16 2021-01-21 广东瑞克斯智能科技有限公司 Guide rail having telescoping belt
CN210643635U (en) * 2019-08-06 2020-06-02 温州律动工贸股份有限公司 Curtain telescopic rail
CN110786711A (en) * 2019-11-01 2020-02-14 广东瑞克斯智能科技有限公司 Curtain telescopic rail
CN111920284A (en) * 2020-09-21 2020-11-13 宁波森瑞机电技术有限公司 Telescopic electric curtain guide rail and curtain
CN212346176U (en) * 2020-09-21 2021-01-15 宁波森瑞机电技术有限公司 Telescopic electric curtain guide rail and curtain

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