Rope winder

Abstract

The utility model relates to the technical field of curtains, and discloses a rope winder which is characterized in that the rope winder comprises a shell and a winding reel, the shell comprises a base, the winding reel is rotationally connected between the two ends of the base, rope guide holes are formed in the two ends of the base, and the two ends of the winding reel can be installed at the two ends of the base at will; the left end of the winding reel can correspond to the left end of the base, the left end of the winding reel can also correspond to the right end of the base, the positions of the two ends of the winding reel can be exchanged, the fool-proof effect is achieved, and installation is convenient. After the base is installed, the installation direction of the winding reel can be changed, and the base does not need to be disassembled and assembled; and the arrangement of the two rope guide holes can adapt to the situation that the mounting positions of the winding reels are exchanged.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, and more specifically to a cord reel. Background Technology

[0002] In Venetian blinds or honeycomb blinds, the blinds are raised and lowered by a rope winder. The rope winder includes a spool, and the rope on the spool passes through the rope guide hole on the rope winder and is connected to the bottom beam. The rotation of the spool drives the winding and unwinding of the rope.

[0003] In existing rope winders, the winding drum is rotatably connected to the base, and the installation direction of the winding drum relative to the base is limited. After the rope winder is installed on the track, changing the installation direction of the rope winder requires disassembling the entire rope winder, which is quite troublesome. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rope winder that does not limit the installation direction of the winding drum.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rope winder, comprising a housing and a winding drum, the housing comprising a base, the winding drum being rotatably connected between the two ends of the base, both ends of the base having rope guide holes, the two ends of the winding drum having the same rotation radius, and both ends of the base being adapted to the two ends of the winding drum.

[0006] As a further improvement of this utility model, both ends of the base are rotatably connected to wheel sets, each wheel set including two guide wheels, and the guide rope holes are respectively located between the two corresponding guide wheels.

[0007] As a further improvement of this utility model, the winding spool includes a spool body and a first rotating body and a second rotating body disposed at both ends of the spool body, wherein the first rotating body and the second rotating body have the same rotation radius.

[0008] As a further improvement of this utility model, the first rotating body is integrally formed with the cylinder, and the second rotating body is detachably connected to the cylinder.

[0009] As a further improvement of this utility model, the cylinder is provided with at least one notch at one end of the first rotating body, and a baffle is detachably connected to the first rotating body, the baffle abutting against the end of the cylinder near the first rotating body.

[0010] As a further improvement of this utility model, at least one protrusion is formed on the end face of the cylinder, and a groove corresponding to the protrusion is provided on the baffle.

[0011] As a further improvement of this utility model, bearings are provided on both the first rotating body and the second rotating body.

[0012] As a further improvement of this utility model, both ends of the base are integrally formed with brackets, and the brackets are provided with grooves, at least part of the bearings are embedded in the corresponding grooves.

[0013] As a further improvement of this utility model, the housing also includes a cover, which is detachably connected to the base.

[0014] As a further improvement of this utility model, the base has a hollowed-out portion, and a connecting plate is connected to the hollowed-out portion, with a gap between the connecting plate and the bottom of the base.

[0015] The beneficial effects of this utility model are as follows: In this utility model, the two ends of the winding drum can be arbitrarily installed on the two ends of the base. The left end of the winding drum can correspond to the left end of the base, or the left end of the winding drum can correspond to the right end of the base. The positions of the two ends of the winding drum can be interchanged, which serves as a foolproof method and facilitates installation. After the base is installed, the installation direction of the winding drum can also be changed without disassembling the base. Furthermore, the two guide rope holes can be designed to accommodate situations where the installation positions of the winding drum are interchanged. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the winding drum in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the baffle in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the middle cylinder of this utility model;

[0021] Figure 6 This is a schematic diagram of the base structure in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the cover body in this utility model.

[0023] Reference numerals: 1. Shell; 11. Base; 111. Rope guide hole; 112. Guide wheel; 113. Hollowed-out part; 12. Cover; 2. Winding spool; 21. Cylindrical body; 211. Notch; 212. Protrusion; 22. First rotating body; 23. Second rotating body; 24. Baffle; 241. Groove; 3. Bearing; 4. Bracket; 41. Groove; 5. Connecting plate. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Reference Figures 1 to 7 As shown, a rope winder of this embodiment includes a housing 1 and a winding drum 2. By changing the outer diameter of the winding drum 2, the transmission ratio can be in the range of 1:0.5 to 1:1.3. Preferably, the transmission ratio in this technical solution is 1:1.05. The housing 1 includes a base 11. The winding drum 2 is rotatably connected between the two ends of the base 11. Both ends of the base 11 are provided with rope guide holes 111. The rotation radius of the two ends of the winding drum 2 is the same, that is, the outer diameter of the two ends of the winding drum 2 is the same. Both ends of the base 11 are adapted to the two ends of the winding drum 2.

[0026] The two ends of the winding drum 2 can be arbitrarily installed on the two ends of the base 11. The left end of the winding drum 2 can be aligned with the left end of the base 11, or the left end of the winding drum 2 can be aligned with the right end of the base 11. The positions of the two ends of the winding drum 2 can be interchanged, which serves as a foolproof method and facilitates installation. After the base 11 is installed, the installation direction of the winding drum 2 can also be changed without disassembling the base 11. Furthermore, the two guide holes 111 can be designed to accommodate situations where the installation positions of the winding drum 2 are interchanged.

[0027] Reference Figure 1 and Figure 2 As shown, both ends of the base 11 are rotatably connected to wheel sets. Each wheel set includes two guide wheels 112, and rope guide holes 111 are located between the corresponding two guide wheels 112. That is, there are a total of four guide wheels 112. There are two guide wheels 112 at each end of the base 11. The direction of the central axis of the guide wheels 112 is perpendicular to the direction of the central axis of the winding drum 2. There is a gap between the two guide wheels 112 at the same end, and the rope guide hole 111 at the same end of the base 111 is located between the two guide wheels 112 at that end.

[0028] Reference Figure 3 , Figure 4 and Figure 5As shown, the winding spool 2 includes a spool body 21 and a first rotating body 22 and a second rotating body 23 disposed at both ends of the spool body 21. The first rotating body 22 and the second rotating body 23 have the same rotation radius. Of course, it is not limited whether the first rotating body 22 is located at the left end or the right end of the spool body 21. The first rotating body 22 and the second rotating body 23 are located at the left end and the right end of the spool body 21, respectively. The outer diameters of the first rotating body 22 and the second rotating body 23 are the same, so that the bearing 3 installed on the first rotating body 22 and the second rotating body 23 can have the same size.

[0029] Reference Figure 2 and Figure 5 As shown, the first rotating body 22 is integrally formed with the cylinder 21, and the second rotating body 23 is detachably connected to the cylinder 21 and can be demolded.

[0030] Reference Figure 5 As shown, the cylinder 21 has at least one notch 211 at one end of the first rotating body 22. One end of the notch 211 passes through the end of the cylinder 21. A baffle 24 is detachably connected to the first rotating body 22. The baffle 24 abuts against the end of the cylinder 21 near the first rotating body 22.

[0031] The notch 211 is connected to the space inside the cylinder 21. After the end of the rope is knotted, it is inserted into the notch 211 and blocked by the baffle 24, which can prevent the end of the rope from coming off from the notch 211.

[0032] Preferably, there are two notches 211, and the two notches 211 are arranged symmetrically;

[0033] The baffle 24 faces the same end bearing 3 and abuts against the bearing 3, which can prevent the baffle 24 from moving axially along the cylinder 21.

[0034] The end face of the cylinder 21 has at least one protrusion 212, and the baffle 24 has a slot 241 corresponding to the protrusion 212. The baffle 24 is positioned by the protrusion 212 being inserted into the slot 241, and the baffle 24 is prevented from rotating.

[0035] Bearings 3 are provided on both the first rotating body 22 and the second rotating body 23 to ensure the rotational stability of the winding drum 2.

[0036] Both ends of the base 11 are integrally formed with brackets 4, wherein the brackets 4 and the base 11 are integrally formed and the two brackets 4 are symmetrically arranged. The brackets 4 are provided with grooves 41, and at least part of the bearings 3 are embedded in the corresponding grooves 41. The opening of the grooves 41 faces upward to limit the installation position of the winding drum 2. The grooves 41 can be semi-circular grooves to fit the shape of the bearings 3.

[0037] Reference Figure 1 and Figure 7As shown, the housing 1 also includes a cover 12, which is detachably connected to the base 11. Both ends of the cover 12 are detachably connected to the base 11 via corresponding brackets 4. The cover 12 and the brackets 4 are detachably connected via a snap-fit ​​mechanism, which facilitates disassembly and assembly.

[0038] Reference Figure 2 and Figure 6 As shown, the base 11 has a hollowed-out section 113, which saves material.

[0039] A connecting plate 5 is connected to the hollow part 113. The setting of the connecting plate 5 increases the stability of the two sides of the base 11 and prevents deformation.

[0040] There is a gap between the connecting plate 5 and the bottom of the base 11, which raises the position of the connecting plate 5. The cable can be routed through the gap to prevent the cable from interfering with the connecting plate 5.

[0041] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A rope twister, characterized in that: The device includes a housing (1) and a winding drum (2). The housing (1) includes a base (11). The winding drum (2) is rotatably connected between the two ends of the base (11). Both ends of the base (11) are provided with rope guide holes (111). The two ends of the winding drum (2) have the same rotation radius. Both ends of the base (11) are adapted to the two ends of the winding drum (2).

2. A rope winder according to claim 1, characterized in that: Both ends of the base (11) are rotatably connected to wheel sets, each wheel set including two guide wheels (112), and the guide rope holes (111) are respectively located between the two corresponding guide wheels (112).

3. A rope winder according to claim 1, characterized in that: The winding spool (2) includes a spool body (21) and a first rotating body (22) and a second rotating body (23) provided at both ends of the spool body (21), wherein the first rotating body (22) and the second rotating body (23) have the same rotation radius.

4. A rope winder according to claim 3, characterized in that: The first rotating body (22) is integrally formed with the cylinder (21), and the second rotating body (23) is detachably connected to the cylinder (21).

5. A rope winder according to claim 4, characterized in that: The cylinder (21) has at least one notch (211) at one end of the first rotating body (22), and a baffle (24) is detachably connected to the first rotating body (22). The baffle (24) abuts against the end of the cylinder (21) near the first rotating body (22).

6. A rope winder according to claim 5, characterized in that: The end face of the cylinder (21) has at least one protrusion (212), and the baffle (24) has a slot (241) corresponding to the protrusion (212).

7. A rope winder according to claim 3, characterized in that: Both the first rotating body (22) and the second rotating body (23) are provided with bearings (3).

8. A rope winder according to claim 7, characterized in that: Both ends of the base (11) are integrally formed with brackets (4), and the brackets (4) are provided with grooves (41), at least part of the bearings (3) are embedded in the corresponding grooves (41).

9. A rope winder according to claim 1, characterized in that: The housing (1) also includes a cover (12), which is detachably connected to the base (11).

10. A rope winder according to claim 1, characterized in that: The base (11) has a hollowed-out portion (113), and a connecting plate (5) is connected to the hollowed-out portion (113). There is a gap between the connecting plate (5) and the bottom of the base (11).

Images