Curtain head

Abstract

The utility model relates to the technical field of curtains, and discloses a curtain head which is characterized by comprising a sealing cover and a shell which are detachably connected, a containing cavity is formed in the sealing cover, the shell comprises a cover plate, the cover plate is detachably connected in the containing cavity, a cavity used for containing a pull bead is formed in the containing cavity, and the containing cavity has a certain depth. The part, except the extending plate, of the cover plate can be contained, so that after the sealing cover is installed, the structure of the part can be hidden, and it is ensured that the pull bead extends out of the side edge of the sealing cover and cannot be dislocated through cooperation of the containing cavity, the notch and the extending plate; compared with the prior art, the size of the cover plate cannot be changed along with the change of the size of the sealing cover.

Description

Technical Field

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

[0002] The curtain head is installed at the end of the track, and a beaded cord is connected to it. The head is connected to four corner bars, and the four corner bars are connected to a cord winder. Pulling the beaded cord will drive the rotation of the four corner bars, thereby transmitting power and raising or lowering the curtain.

[0003] In the prior art, the head includes a cover and a shell. The cover does not have a receiving cavity, or the receiving cavity is very shallow. Therefore, the size of the cover plate needs to be made larger, and the receiving cavity is set in the cover plate. This means that the size of the cover plate needs to be changed with the size of the cover. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a curtain header so that the size of the cover plate does not change with the size of the cover.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a curtain head, comprising a detachably connected cover and a housing, wherein a receiving cavity is formed inside the cover, and the housing includes a cover plate, which is detachably connected to the receiving cavity. A bead pull cavity is formed inside the receiving cavity, and a notch is formed on one side of the cover, which communicates with the bead pull cavity. An extension plate is integrally formed on the cover plate, which is used to close part of the notch so that the bead pull can extend from the side of the cover.

[0006] As a further improvement of this utility model, an arc-shaped component is integrally formed inside the cover, and the two ends of the arc-shaped component are connected to the side of the cover to form the bead-pulling cavity and communicate with the notch.

[0007] As a further improvement of this utility model, the cover is integrally formed with a first support column, the first support column is provided with a positioning hole, and the cover plate is formed with a positioning element adapted to the positioning hole. The first support column is located between the two ends of the arc-shaped element.

[0008] As a further improvement of this utility model, an arc-shaped plate is integrally formed on the first support column.

[0009] As a further improvement of this utility model, the housing also includes a bracket integrally formed with the cover plate, an output component is rotatably connected to the bracket, a ball pull gear is rotatably connected inside the ball pull cavity, and the ball pull gear is connected to the output component through a transmission connection.

[0010] As a further improvement of this utility model, a ring is formed inside the ball bearing cavity, and the ball bearing gear is pivotally mounted on the ring.

[0011] As a further improvement of this utility model, a connecting member is connected to the ball gear for transmission. The end of the connecting member facing the output member forms a first arc-shaped segment, and the end of the output member facing the connecting member forms a second arc-shaped segment. A torsion spring is provided inside the bracket. The torsion spring is located between the connecting member and the output member. Both ends of the first arc-shaped segment and the corresponding ends of the second arc-shaped segment form a space between them. Both ends of the torsion spring extend into the corresponding space.

[0012] As a further improvement of this utility model, a second pillar is formed at one end of the connector facing the output member, and a third pillar is formed at one end of the output member facing the connector, wherein the second pillar is inserted into the third pillar or the third pillar is inserted into the second pillar.

[0013] As a further improvement of this utility model, a bearing is connected between the output component and the bracket.

[0014] As a further improvement of this utility model, the cover and the housing are connected by a snap-fit.

[0015] The beneficial effects of this utility model are as follows: The receiving cavity in this utility model has a certain depth, which can accommodate the part of the cover plate except for the extension plate. Thus, after the cover is installed, this part of the structure can be hidden. Furthermore, the cooperation of the receiving cavity, the notch, and the extension plate ensures that the pull bead extends from the side of the cover without being misaligned. Compared with the prior art, the size of the cover plate does not change with the size of the cover. 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 cap in this utility model;

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

[0020] Figure 5 This is a structural schematic diagram of the connector in this utility model;

[0021] Figure 6 This is a schematic diagram of the output component in this utility model.

[0022] Reference numerals: 1. Cover; 11. Receiving cavity; 12. Bead pull cavity; 121. Ring body; 13. Notch; 14. Arc-shaped component; 15. First support column; 151. Positioning hole; 152. Arc-shaped plate; 2. Housing; 21. Cover plate; 211. Extension plate; 212. Positioning component; 22. Bracket; 3. Output component; 31. Second arc-shaped segment; 32. Third support column; 4. Bead pull gear; 5. Connecting component; 51. First arc-shaped segment; 52. Second support column; 6. Torsion spring; 7. Bearing. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1 to 6 As shown, a curtain head in this embodiment includes a detachably connected cover 1 and a housing 2. The cover 1 and the housing 2 can be detachably connected by screws.

[0025] Preferably, the cover 1 and the housing 2 are connected by a snap fastener. A snap fastener plate and two first fasteners are integrally formed on the inner side of the cover 1. The snap fastener plate is located below the two first fasteners and a snap hole is formed on the snap fastener plate. A second fastener plate is integrally formed on the housing 2 and the second fastener cooperates with the snap hole. The two first fasteners are fastened to the top of the housing 2.

[0026] The cover 1 has a receiving cavity 11. The housing 2 includes a cover plate 21, which is detachably connected to the receiving cavity 11. The receiving cavity 11 has a pull ball cavity 12, which is used to install a pull ball gear 4. The pull ball is installed on the pull ball gear 4. By pulling the pull ball, the pull ball gear 4 can be rotated. A notch 13 is formed on one side of the cover 1. The notch 13 communicates with the pull ball cavity 12 to facilitate the pull ball to extend out of the cover 1. An extension plate 211 is integrally formed on the cover plate 21. The extension plate 211 is used to close part of the notch 13 so that the pull ball can extend out from the side of the cover 1.

[0027] The receiving cavity 11 has a certain depth, which can accommodate the part of the cover plate 21 except for the extension plate 211. Thus, after the cover 1 is installed, this part of the structure can be hidden. The cooperation of the receiving cavity 11, the notch 13 and the extension plate 211 ensures that the pull ball extends from the side of the cover 1 without being misaligned.

[0028] Compared to existing technologies, the size of the cover plate 21 does not need to change with the size of the cover 1.

[0029] Reference Figure 3 As shown, an arc-shaped component 14 is integrally formed inside the cover 1. The two ends of the arc-shaped component 14 are connected to the side of the cover 1 to form a ball pull cavity 12 and communicate with the notch 13. The ball pull gear 4 is installed in the ball pull cavity 12. The arc-shaped component 14 can prevent the ball from separating from the ball pull gear 4.

[0030] Reference Figure 3 and Figure 4 As shown, a first support column 15 is integrally formed on the cover 1, and a positioning hole 151 is provided on the first support column 15. A positioning element 212 adapted to the positioning hole 151 is formed on the cover plate 21. The first support column 15 is located between the two ends of the arc-shaped part 14. The connection and positioning between the cover 1 and the cover plate 21 are formed by the cooperation of the first support column 15 and the positioning element 212.

[0031] In addition, the first support 15 is located between the two ends of the arc-shaped piece 14, thereby dividing the notch 13 into two extension openings, separating the two sides of the annular pull ball, and preventing the pull ball from getting tangled near the pull ball gear 4.

[0032] A support column is integrally formed on the cover 1. In this embodiment, the support column is located outside the arc-shaped part 14 to increase the stability of the positioning connection.

[0033] Reference Figure 3 As shown, an arc-shaped plate 152 is integrally formed on the first support 15, wherein the arc of the arc plate 152 is set downward to facilitate the sliding of the bead on it.

[0034] Reference Figure 2 , Figure 4 As shown, the housing 2 also includes a bracket 22 integrally formed with the cover plate 21. The bracket 22 is through-type, and an output component 3 is rotatably connected to the bracket 22. The output component 3 is located at the end of the bracket 22 away from the cover 1. A ball pull gear 4 is rotatably connected in the ball pull cavity 12, and the ball pull gear 4 is connected to the output component 3 through a transmission connection.

[0035] A ring 121 is formed inside the ball bearing cavity 12, and the ball bearing gear 4 is pivotally mounted on the ring 121. A circular groove is opened on the ball bearing gear 4, and the ring 121 is embedded in the circular groove to increase the stability of the ball bearing gear 4 during rotation.

[0036] Reference Figure 2 , Figure 5 and Figure 6As shown, a connecting member 5 is connected to the ball gear 4 for transmission. The end of the connecting member 5 facing the ball gear 4 is integrally formed with a first column, and the end of the ball gear 4 facing the connecting member 5 is integrally formed with a second column. A polygonal hole is opened in the first column, and the outer surface of the second column is also formed with a polygon to fit the polygonal hole. The second column is inserted into the polygonal hole, thereby realizing the power transmission between the ball gear 4 and the connecting member 5. Of course, the positions of the first column and the second column can be interchanged.

[0037] The connector 5 has a first arc segment 51 at the end facing the output component 3, and the output component 3 has a second arc segment 31 at the end facing the connector 5. A torsion spring 6 is provided inside the bracket 22. The torsion spring 6 is located between the connector 5 and the output component 3. Both ends of the first arc segment 51 and the corresponding ends of the second arc segment 31 are spaced apart. Both ends of the torsion spring 6 extend into the corresponding spaced apart.

[0038] When the connector 5 rotates, regardless of whether the connector 5 rotates clockwise or counterclockwise, the connector 5 will push the end of one of the torsion springs 6, thereby causing the end of the torsion spring 6 to deform inward, so that the torsion spring 6 will rotate synchronously with the connector 5. This end of the torsion spring 6 abuts against the second arc segment 31 of the output component 3, thereby driving the output component 3 to rotate.

[0039] When the output component 3 rotates, the second arc segment 31 abuts against one end of the torsion spring 6, causing the torsion spring 6 to deform outward. The torsion spring 6 abuts against the inner wall of the bracket 22, preventing the torsion spring 6 from expanding outward. The torsion spring 6 is stuck and does not rotate, thus the curtain can be pulled by the torsion spring 6.

[0040] A second support post 52 is formed at the end of the connector 5 facing the output member 3, and a third support post 32 is formed at the end of the output member 3 facing the connector 5. The second support post 52 is inserted into the third support post 32 or the third support post 32 is inserted into the second support post 52. In this embodiment, the third support post 32 is inserted into the second support post 52 to increase the transmission stability between the connector 5 and the output member 3.

[0041] Reference Figure 2 As shown, a bearing 7 is connected between the output component 3 and the bracket 22 to increase the rotational stability between the output component 3 and the bracket 22.

[0042] 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 curtain header, characterized in that: The device includes a detachably connected cover (1) and a housing (2). The cover (1) has a receiving cavity (11) formed inside. The housing (2) includes a cover plate (21) which is detachably connected to the receiving cavity (11). A beaded ball cavity (12) is formed inside the receiving cavity (11). A notch (13) is formed on one side of the cover (1) and communicates with the beaded ball cavity (12). An extension plate (211) is integrally formed on the cover plate (21) and is used to close part of the notch (13) so that the beaded ball can extend from the side of the cover (1).

2. A curtain sash according to claim 1, characterized in that: An arc-shaped component (14) is integrally formed inside the cover (1). The two ends of the arc-shaped component (14) are connected to the side of the cover (1) to form the beaded cavity (12) and communicate with the notch (13).

3. A curtain sash according to claim 2, characterized in that: The cover (1) has a first support column (15) integrally formed on it. The first support column (15) has a positioning hole (151) and the cover plate (21) has a positioning element (212) adapted to the positioning hole (151). The first support column (15) is located between the two ends of the arc-shaped element (14).

4. A curtain sash according to claim 3, characterized in that: An arc-shaped plate (152) is integrally formed on the first support column (15).

5. A curtain sash according to claim 1, characterized in that: The housing (2) also includes a bracket (22) integrally formed with the cover plate (21), an output component (3) is rotatably connected to the bracket (22), a ball pull gear (4) is rotatably connected to the ball pull cavity (12), and the ball pull gear (4) is connected to the output component (3) in a transmission connection.

6. A curtain sash according to claim 5, characterized in that: A ring (121) is formed inside the ball bearing cavity (12), and the ball bearing gear (4) is pivotally mounted on the ring (121).

7. A curtain sash according to claim 5, characterized in that: A connecting member (5) is connected to the ball gear (4) for transmission. The end of the connecting member (5) facing the output member (3) forms a first arc segment (51), and the end of the output member (3) facing the connecting member (5) forms a second arc segment (31). A torsion spring (6) is provided in the bracket (22). The torsion spring (6) is located between the connecting member (5) and the output member (3). The two ends of the first arc segment (51) and the two ends of the corresponding second arc segment (31) are separated by a space. The two ends of the torsion spring (6) extend into the corresponding space.

8. A curtain sash according to claim 7, characterized in that: The connector (5) has a second pillar (52) at one end facing the output member (3), and the output member (3) has a third pillar (32) at one end facing the connector (5). The second pillar (52) is inserted into the third pillar (32) or the third pillar (32) is inserted into the second pillar (52).

9. A curtain sash according to claim 5, characterized in that: A bearing (7) is connected between the output component (3) and the bracket (22).

10. A curtain header according to claim 1, characterized in that: The cover (1) and the housing (2) are connected by a snap fastener.

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