Curtain head

Abstract

The utility model discloses a curtain head which comprises an outer shell cover and an inner shell connected with a curtain box in an inserted mode, a silica gel groove is formed in the outer shell cover, a silica gel pad is arranged on the silica gel groove, the outer shell cover is connected with the inner shell in a buckled mode, a bead pulling chain wheel and a planetary gear piece are further arranged in the inner shell, and the bead pulling chain wheel is connected with a chain wheel shaft of the planetary gear piece. The chain wheel shaft is provided with a plurality of star gear pieces in a meshed mode, the star gear pieces are further in linkage with a rolling rod shaft in a matched mode, an inner hole of the rolling rod shaft is square, and a rope winder locking piece is further arranged on the rolling rod shaft in a sleeved mode. Compared with the prior art, the rope winder is provided with an axially lengthened planetary gear matching structure, transmission strength and stability are improved, the rope winder is mute, the rope winder is provided with double pull bead chain grooves for rope discharging, the rope winder can be suitable for being installed at the end of any side of a curtain, the locking piece is further arranged for a square winding rod of the rope winder, and the rope winder is convenient to use. The connection strength and the use stability of the rolling rod and the head are improved, and the problem that the rolling rod is prone to slipping relative to the head in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, in particular to a curtain head. Background Art

[0002] With the continuous development of life and technology, people's quality of life has been continuously improved, and the use of horizontal curtains such as blinds and honeycombs has become more and more widespread. The existing beaded curtains can be divided into electric and manual types due to different head systems. The manual type has a simple structure, low cost, and is easy to repair and maintain. Therefore, the application range of the manual type is wider than that of the automatic type.

[0003] Generally, manual curtains have their upper beam embedded in a control head. People pull beads or ropes to drive the control head sprocket to rotate. The control head sprocket then transmits the torque to the rope winder through the transmission shaft, driving the rope winder to rotate, thereby achieving the lifting and lowering of the curtain. At present, the multiple planetary gear structures in the control heads used on the market are simple to coordinate, and the gears are short and have poor stability. As a result, the control heads of horizontal curtains are unstable during use. In addition, the left and right positions of the beads of manual curtains are generally fixed at the time of use, making it difficult for users to modify them according to actual needs. Utility Model Content

[0004] In response to the problems in the related technology, the utility model proposes a curtain head that improves stability by lengthening the matching length of the planetary gear, improves ease of use by setting a ball chain groove, and improves stability in use by setting a rope winder lock.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a curtain head, including an outer shell cover and an inner shell plugged with a curtain box, the outer shell cover is provided with a silicone groove, the silicone groove is provided with a silicone pad, the outer shell cover is connected with the inner shell by a buckle, and a bead sprocket and a planetary gear part are also provided in the inner shell, the bead sprocket is connected to the sprocket shaft of the planetary gear part, the sprocket shaft is meshed with a plurality of star gear parts, and the star gear part is also cooperated with a winding rod shaft, the inner hole of the winding rod shaft is square, and a rope winding device lock part is also sleeved on it.

[0006] Furthermore, the rope reel lock and the reel shaft are correspondingly provided with screw holes, and the screw holes are arranged opposite to any plane of the square inner hole.

[0007] Furthermore, a ball chain groove is provided at the connection between the outer shell cover and the inner shell, and the ball chain groove is provided at both ends of the outer shell cover and the inner shell.

[0008] Furthermore, the length of the sprocket shaft and the planetary gear member is greater than the width of the ball sprocket.

[0009] Furthermore, a positioning shaft is also provided on the outer shell cover, and the positioning shaft is inserted into the inner hole of the ball chain wheel.

[0010] Beneficial effect: Compared with the prior art, the head of the utility model is provided with longer matching teeth than the prior art. The axially lengthened structure not only improves the transmission strength and stability, but also makes it quieter. In addition, a rope outlet method of bead chain grooves on both sides is provided, so that the head can be installed at the end of any side of the curtain. A locking piece is also provided for the square rod of the rope winder, which improves the connection strength of the winding rod and the head, improves the stability of use, and avoids the problem of the winding rod in the prior art easily slipping relative to the head. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the internal structure of the head of the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the head of the utility model.

[0013] Figure 3 Schematic diagram of the inner shell structure of this embodiment.

[0014] Figure numerals: 1. outer shell cover; 11. silicone groove; 12. silicone pad; 15. positioning shaft; 2. inner shell; 21. ball chain sprocket; 22. planetary gear member; 221. sprocket shaft; 222. planetary gear member; 23. winding rod shaft; 3. rope winding device lock member; 31. screw hole; 4. ball chain groove. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] like Figure 1-3 The curtain head of the embodiment shown in the figure comprises an outer shell cover 1 and an inner shell 2 plugged into the curtain box, the outer shell cover 1 is provided with a silicone groove 11, the silicone groove 11 is provided with a silicone pad 12, and the outer shell cover 1 is snap-connected with the inner shell 2;

[0017] The inner shell 2 is also provided with a ball chain 21 and a planetary gear 22. The ball chain 21 is connected to a sprocket shaft 221 of the planetary gear 22. The sprocket shaft 221 is meshed with a plurality of planetary gears 222.

[0018] like Figure 1-2The bead sprocket 21 is fixedly connected to the sprocket shaft 221. When the bead pulls the bead sprocket 21 to rotate, the sprocket shaft 221 rotates accordingly and the planetary gear set on the planetary gear member 222 is meshed through the sprocket shaft 221. When the planetary gear rotates, based on the gear ring structure that meshes with the planetary gear on the inner wall of the inner shell 2, the planetary gear rotates along the gear ring while meshing with the sprocket shaft 221, driving the turntable member of the planetary gear member 222 to rotate circumferentially. The turntable member of this embodiment is set as a fan block at one end facing the winding rod shaft 23, and the end plane abuts on the winding spring in the circumferential direction. The other end of the winding spring abuts on the winding rod shaft 23, and the winding rod shaft 23 is driven to rotate by the rotation of the planetary gear member 222. The two ends of the winding spring of this embodiment extend inwardly, and one section abuts against one end of the winding rod shaft 23 abuts against the fan block, which is used to buffer the rotational force and the reverse force.

[0019] The star gear part 222 is also linked with a winding rod shaft 23. The inner hole of the winding rod shaft 23 is square, and a rope reel lock 3 is also provided on it. The winding rod shaft 23 of this embodiment is exposed at the end of the inner shell 2, and the protruding part is provided with a rope reel lock 3. The rope reel lock 3 is mainly used to improve the connection and locking of the rope reel connecting shaft. When in use, the rope reel connecting shaft is inserted into the inner hole of the winding rod shaft 23 through the flat-head top screw threaded on the screw hole 31 set on the rope reel lock 3 and the winding rod shaft 23, and then the top screw is tightened. The radial top screw is used to form a circumferential rotation limit for it and provide a certain axial fixing force. At the same time, based on the rope reel lock 3, the non-metallic winding rod shaft 23 can also be provided with strength improvement and stability.

[0020] As a further configuration of the above solution, the rope reel lock 3 and the reel shaft 23 are correspondingly provided with screw holes 31, and the screw holes 31 are arranged facing any plane of the square inner hole.

[0021] As a further configuration of the above scheme, a bead chain groove 4 is provided at the connection between the outer shell cover 1 and the inner shell 2, and the bead chain groove 4 is provided at both ends of the outer shell cover 1 and the inner shell 2. Figure 3 The bead chain groove 4 of the present embodiment shown is arranged on both sides of the outer shell cover 1 and the inner shell 2. This arrangement allows the head of the present embodiment to be conveniently switched to be arranged on both sides of the curtain according to the needs of the user. Compared with the prior art, it is not limited to installing the curtain and fixing the beads on the left or right side, and can be freely adjusted according to the user's usage habits, layout aesthetics, etc.

[0022] As a further arrangement of the above scheme, the length of the sprocket shaft 221 and the star gear part 222 is greater than the width of the ball sprocket 21. The arrangement of this structure aims to increase the mating contact area of ​​the gear meshing between the star gear part 222 and the sprocket shaft 221, thereby avoiding the problems of wear and tear of the two and excessive instability in the mating clearance after long-term use of the prior art, thereby improving the stability of the use of the head.

[0023] As a further arrangement of the above scheme, a positioning shaft 15 is further arranged on the outer shell cover 1, and the positioning shaft 15 is inserted into the inner hole of the bead sprocket 21. Compared with the prior art, this structural arrangement can not only facilitate the safe alignment of the bead sprocket 21 and the outer shell cover 1 through the positioning shaft 15, but also avoid the swing of the main load-bearing member, the bead sprocket 21, under the pulling of the beads, reduce wear and improve stability.

[0024] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A curtain head, characterized in that: The invention comprises an outer shell (1) and an inner shell (2) plugged into a curtain box, the outer shell (1) being provided with a silicone groove (11), the silicone groove (11) being provided with a silicone pad (12), the outer shell (1) being snap-connected with the inner shell (2), a ball chain wheel (21) and a planetary gear (22) being provided in the inner shell (2), the ball chain wheel (21) being connected to a sprocket shaft (221) of the planetary gear (22), the sprocket shaft (221) being meshed with a plurality of planetary gears (222), the planetary gear (222) being also linked with a winding rod shaft (23), the inner hole of the winding rod shaft (23) being square, and a rope reel lock (3) being sleeved thereon.

2. A curtain head according to claim 1, characterized in that: The rope reel lock element (3) and the reel shaft (23) are correspondingly provided with screw holes (31), and the screw holes (31) are arranged facing any plane of the square inner hole.

3. The curtain head according to claim 1, characterized in that: A ball chain groove (4) is provided at the connection between the outer shell cover (1) and the inner shell (2), and the ball chain groove (4) is provided at both ends of the outer shell cover (1) and the inner shell (2).

4. The curtain head according to claim 1, characterized in that: The lengths of the sprocket shaft (221) and the star gear member (222) are greater than the width of the ball sprocket (21).

5. The curtain head according to claim 1, characterized in that: The outer shell cover (1) is also provided with a positioning shaft (15), and the positioning shaft (15) is inserted into the inner hole of the ball chain wheel (21).

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