Louver winder

Abstract

The utility model discloses a shutter winder which comprises a shaft bracket, a hollow shaft rotationally arranged on the shaft bracket and an arc-shaped shaft cover rotationally arranged on the hollow shaft. The spiral elastic ring is tightly arranged on the hollow shaft in a holding mode, the spiral elastic ring comprises a ring body and two hook parts arranged at the two ends of the ring body respectively, the arc-shaped shaft cover is provided with a receding groove, the hook parts protrude out of the receding groove, and the side portions of the hook parts can abut against the side portions of the receding groove. The shaft bracket is provided with limiting parts used for limiting the two sides of the arc-shaped shaft cover, and the opposite sides of the two hook parts are hanging points. The blade turning device has the advantages that the blades can be turned by arranging the spiral elastic ring, meanwhile, the matching mode of the shaft bracket, the hollow shaft and the spiral elastic ring is more convenient to assemble, a cloth belt with a certain width can be better hung by adopting the spiral elastic ring, and the loading capacity is improved.

Description

Technical Field

[0001] The utility model relates to the field of building decoration, in particular to a blinds wire winder. Background Art

[0002] The Venetian blinds include blades, wire racks, cloth tape, wire reels, wires, small accessories on the wire reels, etc. The wire reels are used to fix and reel the wires of the Venetian blinds. The wires pass through the blades of each layer. When the wires are lengthened, the distance between the blades increases, so that the Venetian blinds can be shielded. When the wires are reeled, the distance between the blades of each layer of the Venetian blinds gradually decreases, so that the Venetian blinds can be folded. There are cloth tapes on both sides of the blades. The pulling distance of the ends of the cloth tapes is limited. The blades are mainly turned by pulling the cloth tapes, so that the blades can be folded in a flat and stacked posture when reeled. The existing wire reels are complex in structure and inconvenient to assemble. In addition, the existing wire reels mostly use an additional rotating block to drive the cloth tape, which is not suitable for large-sized cloth tapes and makes it inconvenient to turn the blades.

[0003] In view of this, it is necessary to provide a blinds reel. Summary of the invention

[0004] The utility model provides a blinds cord winder, which effectively solves the problems of inconvenient assembly of existing blinds cord winders and difficulty in turning over blades.

[0005] The technical solution adopted by the utility model is

[0006] A blinds winder comprises an axis frame, a hollow shaft rotatably arranged on the axis frame, and an arc-shaped shaft cover rotatably arranged on the hollow shaft. It also comprises a spiral elastic ring tightly arranged on the hollow shaft, the spiral elastic ring comprises a ring body and two hook parts respectively arranged at two ends of the ring body, the arc-shaped shaft cover is provided with an avoidance groove, the hook part protrudes from the avoidance groove, the side of the hook part can be against the side of the avoidance groove, the axis frame is provided with a limiting part for limiting the two sides of the arc-shaped shaft cover, and the opposite side of the two hook parts is a mounting point.

[0007] Furthermore, the shaft frame includes a bottom plate, an arc frame arranged on one side of the bottom plate, an arc supporting part arranged on the other side of the bottom plate, the two limit parts are arranged on the bottom plate respectively, and the hollow shaft is rotatably arranged on the arc supporting part. Two cloth belt holes are arranged on the bottom plate.

[0008] Furthermore, the arc-shaped supporting portion is provided with an arc-shaped groove No. 1 and an arc-shaped protrusion No. 1 arranged axially along the hollow shaft, and the hollow shaft is provided with an annular protrusion sliding with the arc-shaped groove No. 1 and an annular groove sliding with the arc-shaped protrusion No. 1.

[0009] Furthermore, one end of the arc-shaped shaft cover is provided with a second arc-shaped protrusion that slides with the annular groove, and the other end of the arc-shaped shaft cover is provided with a convex plate that slides with the outer side of the arc-shaped frame.

[0010] Furthermore, the hook portion includes a first arc integrally formed with the ring body at one end and a second arc integrally formed with the other end of the first arc, the first arc and the second arc form an S-shaped structure, and a mounting point is formed between the first arc and the ring body.

[0011] Furthermore, an inner polygonal edge is arranged inside the hollow shaft.

[0012] Furthermore, the hollow shaft is provided with an annular groove for accommodating the ring body.

[0013] Furthermore, a hollow shaft cover is coaxially connected to one end of the hollow shaft away from the other end, and the hollow shaft cover includes a cover body bolted to the hollow shaft and a flange arranged on the cover body and protruding out of the outside of the hollow shaft, and a plurality of groups of wire holes are arranged on the flange, and each group of the wire holes includes a No. 1 hole and a No. 2 hole.

[0014] The beneficial effects of the utility model are as follows: by setting a spiral elastic ring, the blades can be turned over. At the same time, the matching mode of the shaft frame, the hollow shaft and the spiral elastic ring is more convenient for assembly. The use of the spiral elastic ring can better realize the mounting of a cloth belt of a certain width, thereby improving the load capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of a blinds winder provided in an embodiment of the present application.

[0016] Figure 2 An exploded view of a blinds reel provided in an embodiment of the present application.

[0017] Figure 3 A schematic diagram of a spiral elastic ring of a blinds winder provided in an embodiment of the present application.

[0018] Figure 4 A schematic diagram of a hollow shaft and a hollow shaft cover of a blinds winder provided in an embodiment of the present application.

[0019] The markings in the figure are: 1, shaft frame; 2, hollow shaft; 3, arc-shaped shaft cover; 4, spiral elastic ring; 41, ring body; 42, hook part; 301, avoidance groove; 11, limit part; 12, bottom plate; 13, arc frame; 14, arc-shaped supporting part; 101, cloth belt hole; 140, arc-shaped groove No. 1; 141, arc-shaped protrusion No. 1; 201, annular protrusion; 202, annular groove; 31, arc-shaped protrusion No. 2; 32, protruding plate; 421, arc No. 1; 422, arc No. 2; 203, annular groove; 8, hollow shaft cover; 81, hole No. 1; 82, hole No. 2; DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, a blinds winder provided in an embodiment of the present application comprises an axis frame 1, a hollow shaft 2 rotatably arranged on the axis frame 1, an arc-shaped shaft cover 3 rotatably arranged on the hollow shaft 2, and also comprises a spiral elastic ring 4 tightly arranged on the hollow shaft 2, the spiral elastic ring 4 comprises a ring body 41 and two hook portions 42 respectively arranged at both ends of the ring body 41, the arc-shaped shaft cover 3 is provided with an avoidance groove 301, the hook portion 42 protrudes from the avoidance groove 301, and the side portion of the hook portion 42 can be abutted against the side portion of the avoidance groove 301, the axis frame 1 is provided with a limiting portion 11 for limiting the two sides of the arc-shaped shaft cover 3, and the opposite side of the two hook portions 42 is a mounting point.

[0022] When it is necessary to explain, the blinds winder of the present application needs to be applied to the entire blinds installation system. Cloth belts are connected to both sides of the blinds blades, the cloth belts are close to the upper end surface of the arc-shaped shaft cover 3, and the two corresponding cloth belts are respectively mounted and connected to the two hook parts 42 of the same spiral elastic ring 4.

[0023] In actual use, when the blinds are rolled up, the hollow shaft 2 needs to be rotated clockwise and counterclockwise to realize the retraction and extension of the blinds pull wire, thereby realizing the folding of the blades. The specific action of clockwise rotation is: after the spiral elastic ring 4 is mounted with the cloth belt, the hollow shaft 2 is driven to rotate by the external motor. During the clockwise rotation of the motor, the hollow shaft 2 rotates clockwise, driving the spiral elastic ring 4 to rotate synchronously. Since the arc shaft cover 3 is pressed by the cloth belt, the arc shaft cover 3 rotates synchronously with the hollow shaft 2 until it is abutted by the limiting part 11 on one side and stops rotating synchronously with the hollow shaft 2. At this time, the spiral elastic ring 4 continues to rotate synchronously with the hollow shaft 2 until the hook part 42 on one side abuts against the side of the corresponding avoidance groove 301 and stops rotating synchronously with the hollow shaft 2. Subsequently, the corresponding hook part 42 is elastically stretched and deformed in the counterclockwise direction due to the limiting of the avoidance groove 301 and the rotation of the hollow shaft 2, and the clasping state with the hollow shaft 2 is terminated, so that the cloth belt moves a distance equal to the elastic stretching deformation, and the blind blades connected to the cloth belt are folded from the deflected state to the horizontal state. Counterclockwise rotation is opposite to clockwise rotation.

[0024] In the above design, by setting a spiral elastic ring, the blades can be flipped. At the same time, the matching mode of the shaft frame 1, the hollow shaft 2 and the spiral elastic ring 4 is more convenient for assembly. The use of the spiral elastic ring 4 can better realize the mounting of a cloth belt of a certain width, thereby improving the load capacity.

[0025] Specifically: Figure 2 As shown, the shaft frame 1 includes a bottom plate 12, an arc frame 13 arranged on one side of the bottom plate 12, and an arc-shaped supporting portion 14 arranged on the other side of the bottom plate 12. The two limiting portions 11 are respectively arranged on the bottom plate 12, and the hollow shaft 2 is rotatably arranged on the arc-shaped supporting portion 14. Two cloth belt holes 101 are arranged on the bottom plate 12.

[0026] In actual use, the hollow shaft 2 passes through the rear end of the arc frame 13 and is placed on the arc supporting portion 14, so that the hollow shaft 2 is rotatably connected to the arc supporting portion 14. The cloth belts on both sides of the blade pass through the two cloth belt holes 101 respectively.

[0027] In the above design, the structural design and specific implementation of the shaft frame 1 can effectively realize the support of the hollow shaft 2 and use the arc frame 13 to prevent the hollow shaft 2 from disengaging and limiting.

[0028] Specifically: Figure 1 and Figure 2 As shown, the arc-shaped supporting portion 14 is provided with an arc-shaped groove 140 and an arc-shaped protrusion 141 arranged axially along the hollow shaft 2 , and the hollow shaft 2 is provided with an annular protrusion 201 sliding with the arc-shaped groove 140 and an annular groove 202 sliding with the arc-shaped protrusion 141 .

[0029] In actual use, during the rotation of the hollow shaft 2 , it is rotationally connected to the annular protrusion 201 via the first arc-shaped groove 140 , and is rotationally connected to the annular groove 202 via the first arc-shaped protrusion 141 .

[0030] In the above design, the structural design and specific implementation of the arc-shaped supporting portion 14 and the hollow shaft 2 can effectively realize the rotation and axial limitation of the hollow shaft 2.

[0031] Specifically: Figure 1 and Figure 2 As shown, one end of the arc-shaped shaft cover 3 is provided with a second arc-shaped protrusion 31 that slides with the annular groove 202 , and the other end of the arc-shaped shaft cover 3 is provided with a convex plate 32 that slides with the outer side of the arc-shaped frame 13 .

[0032] In actual use, when the hollow shaft 2 rotates, the convex plate 32 is slidably connected with the second arc-shaped protrusion 31 .

[0033] In the above design, the design of the arc-shaped shaft cover 3 and the hollow shaft 2 can effectively ensure the stable sliding and axial limitation between the arc-shaped shaft cover 3 and the hollow shaft 2.

[0034] Specifically: Figure 3 As shown, the hook portion 42 includes a first arc 421 integrally formed with the ring body 41 at one end and a second arc 422 integrally formed with the other end of the first arc 421 . The first arc 421 and the second arc form an S-shaped structure, and a mounting point is formed between the first arc 421 and the ring body 41 .

[0035] In actual use, the cloth belt is passed through the second arc 422 and mounted on the mounting point.

[0036] In the above design, the structural design and specific implementation of the hook portion 42 can effectively realize the mounting of the cloth belt.

[0037] Specifically, an inner polygonal edge is arranged inside the hollow shaft 2 .

[0038] During actual use, the external prismatic shaft is inserted into the hollow shaft 2 to engage with the hollow shaft 2, thereby driving the hollow shaft 2 to rotate synchronously.

[0039] In the above design, the structural design and specific implementation of the hollow shaft 2 can be easily fixed to the outside.

[0040] Specifically: Figure 2 As shown, the hollow shaft 2 is provided with an annular groove 203 for accommodating the ring body 41 .

[0041] In actual use, the ring body 41 does not contact the arc-shaped shaft cover 3 in the annular groove 203 .

[0042] In the above design, the hollow shaft 2 is provided with an annular groove 203 which can effectively accommodate the ring body 41 .

[0043] Specifically: Figure 1 , Figure 2 and Figure 4 As shown, the hollow shaft 2 is coaxially connected to a hollow shaft cover 8 away from one end, and the hollow shaft cover 8 includes a cover body bolted to the hollow shaft 2 and a flange arranged on the cover body and protruding out of the outside of the hollow shaft 2, and a plurality of groups of wire holes are arranged on the flange, and each group of the wire holes includes a number 1 hole 81 and a number 2 hole 82.

[0044] In actual use, the end of the pull wire of the shutter blade is tied into a knot, passed through the first hole 81 from one side of the shaft frame 1, and then passed back to the second hole 82, and then wound around the hollow shaft 2.

[0045] In the above design, the flange can be provided to effectively prevent the pull wires on the hollow shaft 2 from slipping off the hollow shaft 2 too much, and the No. 1 hole 81 and the No. 2 hole 82 can be provided to effectively fix the ends of the pull wires.

[0046] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blinds winder, comprising a shaft frame (1), a hollow shaft (2) rotatably arranged on the shaft frame (1), and an arc-shaped shaft cover (3) rotatably arranged on the hollow shaft (2), characterized in that: It also includes a spiral elastic ring (4) tightly arranged on the hollow shaft (2), the spiral elastic ring (4) includes a ring body (41) and two hook parts (42) respectively arranged at both ends of the ring body (41), the arc-shaped shaft cover (3) is provided with a avoidance groove (301), the hook part (42) protrudes from the avoidance groove (301), and the side of the hook part (42) can be abutted against the side of the avoidance groove (301), and the shaft frame (1) is provided with a limiting part (11) for limiting the two sides of the arc-shaped shaft cover (3), and the opposite side of the two hook parts (42) is a mounting point.

2. The blinds cord winder according to claim 1, characterized in that: The shaft frame (1) comprises a bottom plate (12), an arc-shaped frame (13) arranged on one side of the bottom plate (12), and an arc-shaped supporting portion (14) arranged on the other side of the bottom plate (12); the two limiting portions (11) are respectively arranged on the bottom plate (12); the hollow shaft (2) is rotatably arranged on the arc-shaped supporting portion (14); and the bottom plate (12) is provided with two cloth belt holes (101).

3. The blinds cord winder according to claim 2, characterized in that: The arc-shaped supporting portion (14) is provided with a first arc-shaped groove (140) and a first arc-shaped protrusion (141) arranged axially along the hollow shaft (2), and the hollow shaft (2) is provided with an annular protrusion (201) sliding with the first arc-shaped groove (140) and an annular groove (202) sliding with the first arc-shaped protrusion (141).

4. The blinds cord winder according to claim 1, characterized in that: One end of the arc-shaped shaft cover (3) is provided with a second arc-shaped protrusion (31) that slides with the annular groove (202), and the other end of the arc-shaped shaft cover (3) is provided with a convex plate (32) that slides with the outer side of the arc-shaped frame (13).

5. The blinds cord winder according to claim 1, characterized in that: The hook portion (42) comprises a first arc (421) whose one end is integrally formed with the ring body (41) and a second arc (422) which is integrally formed with the other end of the first arc (421); the first arc (421) and the second arc form an S-shaped structure; a mounting point is formed between the first arc (421) and the ring body (41).

6. The blinds cord winder according to claim 1, characterized in that: An inner polygonal edge is arranged on the inner side of the hollow shaft (2).

7. The blinds cord winder according to claim 1, characterized in that: The hollow shaft (2) is provided with an annular groove (203) for accommodating the ring body (41).

8. The blinds cord winder according to claim 1, characterized in that: A hollow shaft cover (8) is coaxially connected to one end of the hollow shaft (2) away from the other end. The hollow shaft cover (8) comprises a cover body bolted to the hollow shaft (2) and a flange arranged on the cover body and protruding from the outside of the hollow shaft (2). The flange is provided with a plurality of groups of wire holes, and each group of the wire holes comprises a number one hole (81) and a number two hole (82).

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