Day and night curtain

Abstract

The utility model provides a day and night curtain which comprises an upper frame, a frame track on the left side, a lower frame and a frame track on the right side which form a frame, and an upper curtain cloth and a lower curtain cloth are arranged in the frame. The upper frame is connected with the upper end of the upper curtain cloth, the lower frame is connected with the lower end of the lower curtain cloth, sliding beams are arranged at the lower end of the upper curtain cloth and the upper end of the lower curtain cloth respectively, and the left ends and the right ends of the sliding beams slide in the corresponding frame rails respectively. The two independent pull rope mechanisms respectively penetrate through the two pieces of curtain cloth; each pull rope mechanism comprises at least one pull rope; two ends of each pull rope are fixed; and the pull ropes penetrate through the corresponding curtain cloth in the vertical direction. According to the utility model, the threading mode of the pull rope is changed, the structure is simple, the opening and closing operation is simple and convenient, and switching between window opening and day and night curtain can be realized. A user can install and adjust the curtain by himself / herself.

Description

Technical Field

[0001] The utility model belongs to the field of curtains, and in particular relates to a day and night curtain. Background Art

[0002] With the development and progress of society, curtain products are also constantly updated. The vehicle-mounted day and night honeycomb curtains currently produced and sold on the market are mostly packaged as a whole during transportation and packaging, and the installation process is cumbersome, requiring workers to install on site. Patent CN214170403U discloses a multifunctional honeycomb skylight day and night curtain. This structure also has the problem of inconvenient installation. When the skylight is opened and closed, the resistance generated by the pull cord is not large. It can only be applied to the skylight, and cannot be applied to other windows that need to overcome gravity to maintain balance. Summary of the invention

[0003] The utility model provides a day and night curtain.

[0004] The purpose of the utility model is achieved in the following way: a day-night curtain, comprising an upper frame constituting a frame, a frame track on the left, a lower frame, and a frame track on the right, wherein upper and lower curtains are arranged in the frame; the upper frame is connected to the upper end of the upper curtain, and the lower frame is connected to the lower end of the lower curtain, and sliding beams are respectively arranged at the lower end of the upper curtain and the upper end of the lower curtain, and the left and right ends of the sliding beam slide in the corresponding frame track respectively; and also comprising two independent pull rope mechanisms respectively passing through the two curtains, each pull rope mechanism comprising at least one pull rope with both ends fixed and passing through the corresponding curtain in the up and down directions.

[0005] Each of the pull rope mechanisms includes at least one pair of pull ropes with both ends fixed and passing through the corresponding curtain in the up and down directions. The left pull rope passes through the curtain, enters the sliding beam and passes through the right end of the sliding beam, and the right pull rope passes through the curtain, enters the sliding beam and passes through the left end of the sliding beam.

[0006] The left and right ends of the sliding beam are respectively fixed with detachable end heads, and the end heads are slidably arranged in the corresponding side frame tracks; a long slot channel for the pull rope to pass through is arranged on the sliding beam, a notch is arranged on the end head at the position corresponding to the pull rope, and a cylindrical pin is arranged below the notch; the pull rope passes around the cylindrical pin on the corresponding side.

[0007] The upper frame and the two frame guide rails, and the lower frame and the two frame rails are connected respectively through frame heads, and head grooves are arranged at positions of the upper frame, the lower frame and the frame rails corresponding to the frame heads, and two vertical insertion ends are correspondingly arranged on the frame heads, and the insertion ends are tightly fitted with the head grooves.

[0008] A head buckle cover is fixedly arranged at the front end of the frame head, and at least two head cylinders are arranged on the frame head. A buckle cover cylinder that cooperates with the head cylinder and is positioned corresponding to the head cylinder is arranged on the head buckle cover. Rope holes for passing the pull rope are arranged on the head cylinder and the buckle cover round tube. A hook-shaped protrusion is arranged at the rear end of the head buckle cover, and the edge of the frame head is stuck in the hook-shaped protrusion; the pull rope of the upper curtain passes through the corresponding sliding beam and then passes through the frame track on the corresponding side to reach the frame head below, and the end of the pull rope passes through the frame cylinder and is tied and fixed; the pull rope of the lower curtain passes through the corresponding sliding beam and then passes through the frame track on the corresponding side to reach the frame head above, passes through the frame cylinder and is tied and fixed.

[0009] Compared with the prior art, the utility model changes the threading method of the pull cord, has a simple structure, and is easy and convenient to open and close, and can realize the switching of window opening and day and night curtains. The utility model allows users to install and adjust the curtains independently.

[0010] The utility model prevents the curtain from sliding down by the resistance generated by the friction of the pull rope, prevents the two sliding sides from tilting during the sliding process by cross-threading the pull rope, reduces the friction loss between the pull rope and the end face head by the cylindrical pin, and makes the curtain smoother when pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall diagram of the utility model.

[0012] Figure 2 yes Figure 1 Exploded diagram.

[0013] Figure 3 yes Figure 2 Partial diagram of the middle end face head and sliding beam.

[0014] Figure 4 It is a schematic diagram of the end head.

[0015] Figure 5 yes Figure 4 Another side view.

[0016] Figure 6 This is an exploded view of the frame head and the head cover.

[0017] Figure 7 It is a schematic diagram of the frame header.

[0018] Figure 8 yes Figure 7 Another side view.

[0019] Fig. 9 It is a schematic diagram of the head cover.

[0020] Fig.10 This is a diagram of the pull rope threading.

[0021] Among them, 1 is the curtain, 2 is the upper frame, 3 is the lower frame, 4 is the frame track, 5 is the sliding beam, 50 is the positioning groove, 6 is the pull rope, 7 is the end face head, 70 is the positioning protrusion, 8 is the frame head, 80 is the head cylinder, 9 is the head buckle cover, 90 is the buckle cover cylinder, 91 is the hook-shaped protrusion, and 10 is the cylindrical pin. DETAILED DESCRIPTION

[0022] In the present utility model, unless otherwise clearly specified and limited, the technical terms used in this application shall be the common meanings understood by the technicians of the present utility model. The terms "connected", "connected", "fixed", "set", etc. should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be directly connected, or indirectly connected through an intermediate medium; may be mechanically connected or electrically connected. Unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or indirectly contacted through an intermediate medium. Moreover, the first feature "above" or "above" or "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below" or "below" or "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Relational terms such as first, second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc., to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0023] The following will provide a clear and complete description of the technical solution of the present utility model in conjunction with the accompanying drawings and specific embodiments. Figure 1-10As shown, a day and night curtain comprises an upper frame 2 constituting a frame, a frame track 4 on the left, a lower frame 3, and a frame track 4 on the right, wherein two upper and lower curtains 1 are arranged in the frame; the upper frame 2 is connected to the upper end of the upper curtain 1, and the lower frame 3 is connected to the lower end of the lower curtain 1, characterized in that: a sliding beam 5 is respectively arranged at the lower end of the upper curtain 1 and the upper end of the lower curtain 1, and the left and right ends of the sliding beam 5 slide in the corresponding frame track 4 respectively; and also comprises two independent pull cord 6 mechanisms passing through the two curtains 1 respectively, and each pull cord 6 mechanism comprises at least one pull cord 6 with both ends fixed and passing through the corresponding curtain 1 in the up and down direction. The pull cord 6 passes through the curtain 1, and the friction between the pull cord 6 and the sliding contact part with the pull cord 6 generates resistance so that the curtain 1 remains in the same position when there is no external force. The structure of the utility model can be applied to a vehicle sunroof or other sunroofs, and of course it can also be applied to other windows. The day and night curtain of the utility model can be a curtain that can be pushed to unfold or fold, such as a honeycomb curtain, a pleated curtain, etc., and a rolling curtain cannot be used. The upper curtain 1 and the lower curtain 1 have different shading degrees to meet different needs during the day and at night. The "through" here refers to the entire length of the curtain 1 in the up and down direction. The up and down direction can be from top to bottom or from bottom to top. The upper and lower, upper frame 2, lower frame 3, etc. here are only directions in the attached drawings, and are not the up and down directions when the day and night curtains are installed. The opening and closing of the corresponding curtain 1 can be achieved by pushing the sliding beam 5 to move. The utility model has a simple structure and is easy and convenient to open and close, and can realize the conversion of window opening and day and night curtains.

[0024] Each of the pull rope 6 mechanisms includes at least one pair of pull ropes 6 fixed at both ends and passing through the corresponding curtain 1 in the up-down direction. The left pull rope 6 passes through the curtain 1, enters the sliding beam 5 and passes through the right end of the sliding beam 5, and the right pull rope 6 passes through the curtain 1, enters the sliding beam 5 and passes through the left end of the sliding beam 5. The utility model simplifies the rope threading method of the pull rope 6, and the operation process is more convenient and simple. The left and right pull ropes 6 change direction in the sliding beam 5. The left and right cross-threading method of the pull rope 6 can prevent the sliding beam 5 from tilting during the sliding process, and also increase a part of the friction force. For the upper curtain 1, the left and right pull ropes 6 of the pull rope 6 mechanism are preferably arranged in parallel in the curtain 1, and the upper end of the pull rope 6 is located above the outside of the curtain 1 and is knotted or prevented from falling off by other methods. The upper end of the pull rope 6 can be set above the curtain 1 or in the upper frame 2 or elsewhere, as long as one end of the pull rope 6 is fixed and prevented from falling off. The lower end of the drawstring 6 after crossing the sliding beam 5 is also knotted and fixed, and can be respectively set in the left and right frame tracks 4, or can be set in the lower frame 3 or other fixed positions. The specific position is determined according to the actual situation. For the lower curtain 1, the left and right drawstrings 6 of the corresponding drawstring 6 mechanism are preferably arranged in parallel in the curtain 1, and the lower end of the drawstring 6 is located below the curtain 1 and is knotted and fixed. The drawstring 6 passes through the sliding beam 5 at the upper end of the curtain 1 and extends from the opposite side. The upper end of the drawstring 6 is knotted or fixed by other methods. Fig.10 The middle arrow shows the location of the knot buckle.

[0025] The left and right ends of the sliding beam 5 are respectively fixed with detachable end face heads 7, and the end face heads 7 are slidably arranged in the corresponding side frame track 4; the sliding beam 5 is provided with a long slot channel for the pull rope 6 to pass through, and a notch is provided on the end face head 7 at the position corresponding to the pull rope 6, and a cylindrical pin 10 is provided below the notch; the pull rope 6 passes around the cylindrical pin 10 on the corresponding side. The cylindrical pin 10 can be fixedly arranged on the end face head 7, or can be rotatably arranged on the end face head 7. A cylindrical pin 10 mounting hole is provided at the position of the end face head 7 corresponding to the cylindrical pin 10. The friction loss between the pull rope 6 and the end face head 7 is reduced by the cylindrical pin 10, and the curtain is smoother when pulled. The frame track 4 and the end face head 7 are connected by a guide rail slider mechanism. The end face head 7 and the sliding beam 5 are connected in a tightly fitting manner. For example, a positioning protrusion 70 is provided on the side of the end face seal 7 facing the sliding beam 5, and an inclined surface is provided at the end of the positioning protrusion 70 to form a trapezoidal shape; a positioning groove 50 corresponding to the positioning protrusion 70 is provided on the sliding beam 5, and the inclined surface of the positioning protrusion 70 is used for positioning, and the positioning protrusion 70 and the positioning groove 50 cooperate to fix the end face seal 7 and the sliding beam 5. Each end face seal 7 can be provided with one or more positioning protrusions 70.

[0026] The upper frame 2 and the two frame guide rails, and the lower frame 3 and the two frame rails 4 are connected respectively through the frame head 8, and the upper frame 2, the lower frame 3, and the frame rail 4 are provided with a head groove corresponding to the position of the frame head 8, and the frame head 8 is provided with two vertical insertion ends, and the insertion ends are tightly matched with the head groove. Preferably, the two insertion sections of the same frame wind head are arranged vertically. The head groove can be arranged on the back of the frame rail 4, and can be a through groove in the length direction, or it can not be a through groove.

[0027] A head cover 9 is fixedly arranged at the front end of the frame head 8, at least two head cylinders 80 are arranged on the frame head 8, and a cover cylinder 90 that cooperates with the head cylinder 80 is arranged at the position corresponding to the head cylinder 80 on the head cover 9, and rope holes for the pull rope 6 to pass through are arranged on the head cylinder 80 and the cover round tube, and a hook-shaped protrusion is arranged at the rear end of the head cover 9, and the edge of the frame head 8 is stuck in the hook-shaped protrusion; the pull rope 6 of the upper curtain 1 passes through the corresponding sliding beam 5 and the frame track 4 on the corresponding side to reach the frame head 8 below, and the end of the pull rope 6 passes through the frame cylinder and is tied and fixed; the pull rope 6 of the lower curtain 1 passes through the corresponding sliding beam 5 and the frame track 4 on the corresponding side to reach the upper frame head 8, pass through the frame cylinder and be tied and fixed. The head cylinder 80 is inserted into the cover cylinder 90, and of course it can also be reversed. The frame head 8 connects the rear ends of the upper rail and the frame rail 4, and a head buckle cover 9 is provided at the front end to connect with the front sections of the upper rail and the frame rail 4. The rear end face of the hook-shaped protrusion here is an inclined surface, and the elastic deformation of the material itself is used to pass over the thickness of the frame head 8 until the frame head 8 is stuck in the hook of the hook-shaped protrusion. The hook-shaped protrusion here is a general shape and is not limited. The frame head 8 and the head buckle cover 9 are connected by another buckle structure. In practice, after the tightness of the drawstring 6 is adjusted according to the situation of the curtain, the end of the drawstring 6 is fixed.

[0028] In addition, the connection between the curtain 1 and the upper frame 2 and the lower frame 3, and the connection between the curtain 1 and the sliding rail are prior art and will not be described in detail. The upper and lower ends of the curtain 1 are provided with adhesive strips, which are arranged in the grooves of the upper rail, the lower rail and the sliding rail to achieve connection.

[0029] During installation, tie a knot at one end of the pull rope 6, and then pass the other end through the curtain 1 and cross it to the left and right to extend from the end face heads 7 at both ends of the sliding beam 5, wherein the left pull rope 6 passes through the hole above the right cylindrical pin 10, and the right pull rope 6 passes through the hole above the left cylindrical pin 10. Connect the two ends of the upper track and the lower track to the frame head 8 respectively, and the ends of the four pull ropes 6 pass through the corresponding frame head cylinders 80 of the frame head 8 respectively. Insert the two ends of the upper curtain 1 into the grooves of the upper frame 2 and the sliding beam 5 respectively, and insert the two ends of the lower curtain 1 into the grooves of the lower frame 3 and the sliding beam 5 respectively. The two ends of the sliding beam 5 are set in the frame track 4. Then, the frame head 8 is connected to the upper and lower ends of the frame guide rail respectively. After installation, adjust the tightness and friction of the pull rope 6 by adjusting the length of the pull rope 6. After debugging, fix the head buckle cover 9 on the frame head 8. The frame seal 8 is provided with threaded holes or through holes at locations corresponding to the seal cylinder 80 and the buckle cover cylinder 90, and the entire day and night curtain can be fixed by screws or bolts or other parts. The curtain of the utility model can be installed outside the window frame. The part of fixing the curtain belongs to the prior art and will not be described in detail.

[0030] The technical features of the above-mentioned embodiments can be combined arbitrarily, and as long as there is no contradiction in the combination of these technical features, they should be considered as the scope of this specification. Without departing from the overall concept of the utility model, the technical solution of the utility model and the equivalent replacement or change, as well as the changes and improvements made, should also be regarded as the protection scope of the utility model.

Claims

1. A day-night curtain, comprising an upper frame, a frame track on the left, a lower frame, and a frame track on the right, wherein upper and lower curtains are arranged in the frame; the upper frame is connected to the upper end of the upper curtain, and the lower frame is connected to the lower end of the lower curtain, characterized in that: Sliding beams are respectively arranged at the lower end of the upper curtain and the upper end of the lower curtain, and the left and right ends of the sliding beams slide in the corresponding frame tracks respectively; it also includes two independent pull rope mechanisms that pass through the two curtains respectively, and each pull rope mechanism includes at least one pull rope with both ends fixed and passing through the corresponding curtain in the up and down directions.

2. A day and night curtain according to claim 1, characterized in that: Each of the pull rope mechanisms includes at least one pair of pull ropes with both ends fixed and passing through the corresponding curtain in the up and down directions. The left pull rope passes through the curtain, enters the sliding beam and passes through the right end of the sliding beam, and the right pull rope passes through the curtain, enters the sliding beam and passes through the left end of the sliding beam.

3. A day and night curtain according to claim 2, characterized in that: The left and right ends of the sliding beam are respectively fixed with detachable end heads, and the end heads are slidably arranged in the corresponding side frame tracks; a long slot channel for the pull rope to pass through is arranged on the sliding beam, a notch is arranged on the end head at the position corresponding to the pull rope, and a cylindrical pin is arranged below the notch; the pull rope passes around the cylindrical pin on the corresponding side.

4. A day and night curtain according to claim 3, characterized in that: The upper frame and the two frame guide rails, and the lower frame and the two frame rails are connected respectively through frame heads, and head grooves are arranged at positions of the upper frame, the lower frame and the frame rails corresponding to the frame heads, and two vertical insertion ends are correspondingly arranged on the frame heads, and the insertion ends are tightly fitted with the head grooves.

5. A day and night curtain according to claim 4, characterized in that: A head buckle cover is fixedly arranged at the front end of the frame head, and at least two head cylinders are arranged on the frame head. A buckle cover cylinder that cooperates with the head cylinder and is positioned corresponding to the head cylinder is arranged on the head buckle cover. Rope holes for passing the pull rope are arranged on the head cylinder and the buckle cover round tube. A hook-shaped protrusion is arranged at the rear end of the head buckle cover, and the edge of the frame head is stuck in the hook-shaped protrusion; the pull rope of the upper curtain passes through the corresponding sliding beam and then passes through the frame track on the corresponding side to reach the frame head below, and the end of the pull rope passes through the frame cylinder and is tied and fixed; the pull rope of the lower curtain passes through the corresponding sliding beam and then passes through the frame track on the corresponding side to reach the frame head above, passes through the frame cylinder and is tied and fixed.

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