Limiting stopper for curtain
The curtain limiter design that drives the stud rotation through the misaligned transmission gears solves the problems of large size and complex structure of the existing limiter, and achieves simple structure and low-cost production.
Patent Information
- Application Number
- CN202422348403.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing curtain limiters are large in size and complex in structure, resulting in high production costs.
The structural design includes a base, a first stud, a second stud, a first transmission gear and a second transmission gear is adopted. The stud rotation is driven by the misaligned transmission gear to realize the limiting function, and the stud part is located in the channel of the base to simplify the structure.
The overall structure of the limiter is achieved with a simple and small size, reducing production costs and easy installation.
Smart Images
Figure CN223068334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of curtains, in particular to a position limiter for curtains.
Background Art
[0002] The opening and closing of the curtain are mainly realized by the rotation of the control head. In order to prevent users from over-rotating the control head, a position limiter is configured on the curtain. The current position limiter has relatively big problems of large volume and complex structure, resulting in high production cost of the position limiter.
[0003] Therefore, it is necessary to make further improvements to it.
Content of the Utility Model
[0004] The purpose of the utility model is to overcome the above problems. We provide a position limiter for curtains, which has a simple structure and a small volume.
[0005] To achieve the above purpose, the utility model provides a position limiter for curtains, which includes a base, a first stud, a second stud, a first transmission gear and a second transmission gear. The first stud and the second stud are coaxially arranged on the base. Threaded holes for screwing the first stud and the second stud are formed on the base. The first stud can rotate relative to the base and contact the second stud, and the second stud can rotate relative to the base and contact the first stud. The first transmission gear is used to drive the first stud to rotate, and the second transmission gear is used to drive the second stud to rotate. The first transmission gear and the second transmission gear are arranged in a staggered manner.
[0006] In one or more embodiments, non-circular shaft holes for connecting a transmission shaft are formed on both the first transmission gear and the second transmission gear.
[0007] In one or more embodiments, a third transmission gear is sleeved on the first stud. The third transmission gear can move along the surface of the first stud. The third transmission gear meshes with the first transmission gear, and the first stud rotates as the third transmission gear rotates.
[0008] In one or more embodiments, a fourth transmission gear is sleeved on the second stud. The fourth transmission gear can move along the surface of the second stud. The fourth transmission gear meshes with the second transmission gear, and the second stud rotates as the fourth transmission gear rotates.
[0009] In one or more embodiments, a first end head is provided at the end of the first stud corresponding to the second stud, and a second end head is provided at the end of the second stud corresponding to the first stud. Limiting portions are provided on the end faces of the first end head and the second end head.
[0010] In one or more embodiments, a channel is provided on the base, and at least a part of the first stud and the second stud is located in the channel.
[0011] The effects of the present utility model compared with the background technology are as follows: The overall structure of the limiter is simple and compact, with a small volume, which can effectively reduce production costs and is easy to install on the installation track of the curtain for use.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram (partially disassembled) of the limiter in the embodiment of the present utility model;
[0013] Figure 2 For Figure 1 a schematic structural diagram from another angle;
[0014] Figure 3 It is a cross-sectional view of the limiter in the embodiment of the present utility model passing through the central axis.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] In order to deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.
[0016] Please refer to Figures 1-3 , the present application provides a limiter for a curtain, which includes a base 1, a first stud 2, a second stud 3, a first transmission gear 4 and a second transmission gear 5. The first stud and the second stud are coaxially arranged on the base, and threaded holes 6 for screwing the first stud 2 and the second stud 3 are formed on the base. Therefore, when the first stud and the second stud are rotated, the first stud and the second stud can move relative to the base along the axial direction. The first stud can rotate relative to the base and contact the second stud, and the second stud can rotate relative to the base and contact the first stud. The first transmission gear 4 is used to drive the first stud 2 to rotate, and the second transmission gear 5 is used to drive the second stud 3 to rotate. The first transmission gear and the second transmission gear are arranged in a staggered manner. The first transmission gear and the second transmission gear are used to be connected to the drive heads on both sides respectively. The user drives the first transmission gear and the second transmission gear to rotate correspondingly by controlling the rotation of the drive heads, so as to rotate the first stud and the second stud. For example: when the first stud rotates to contact the second stud, it is limited by the second stud. At this time, when the user continues to pull the drive head, the drive head is also in a slipping state, and the curtain at this time is correspondingly in the state of being fully unfolded or fully retracted; it should be noted that this limiter is applicable to two layers of curtains.
[0017] Non-circular shaft holes 7 for connecting the transmission shaft are formed on both the first transmission gear and the second transmission gear. The non-circular shaft holes can be better connected to the transmission shaft and rotate synchronously with the transmission shaft. The transmission shaft is a shaft body used to connect the output end of the drive head.
[0018] A third transmission gear 8 is sleeved on the first stud 2. The third transmission gear can move along the surface of the first stud. The third transmission gear 8 meshes with the first transmission gear 4. The first stud rotates as the third transmission gear rotates. The first stud is provided with a hole position sleeved on the first stud. This hole position is a non-circular hole position. Correspondingly, the cross-sectional shape of the first stud also matches this non-circular hole position. This non-circular hole position is slightly larger than the cross-sectional size of the first stud to ensure that the third transmission gear can both move along the surface of the first stud and drive it to rotate. Similarly, a fourth transmission gear 9 is sleeved on the second stud 3. The fourth transmission gear can move along the surface of the second stud. The fourth transmission gear 9 meshes with the second transmission gear 5. The second stud rotates as the fourth transmission gear rotates.
[0019] One end of the first stud 2 corresponding to the second stud 3 is provided with a first end 21. One end of the second stud corresponding to the first stud is provided with a second end 31. Limiting parts 10 are provided on the end faces of the first end and the second end. By providing the ends and the limiting parts, when the limiting part on the first end hits the limiting part on the second end, the first stud and the second stud are in a clamped state. At this time, when the user rotates the socket head again, the socket head is also in a slipping state, and at the same time, it also reminds the user to stop rotating the socket head.
[0020] A channel 11 is provided on the base 1. At least a part of the first stud and the second stud is located in this channel. The function of the channel is to limit and protect the first stud and the second stud.
[0021] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. Any equivalent modification or change made by those of ordinary skill in the art according to the disclosure of the present invention shall be included in the protection scope recorded in the claims.
Claims
1. A position limiter for a curtain, characterized in that: It includes a base (1), a first stud (2), a second stud (3), a first transmission gear (4) and a second transmission gear (5). The first stud and the second stud are coaxially arranged on the base. Threaded holes (6) for screwing the first stud (2) and the second stud (3) are formed on the base. The first stud can rotate relative to the base and contact the second stud, and the second stud can rotate relative to the base and contact the first stud. The first transmission gear (4) is used to drive the first stud (2) to rotate, and the second transmission gear (5) is used to drive the second stud (3) to rotate. The first transmission gear and the second transmission gear are arranged in a staggered manner.
2. The position limiter for a curtain according to claim 1, characterized in that: Non-circular shaft holes (7) for connecting a transmission shaft are formed on both the first transmission gear and the second transmission gear.
3. The position limiter for a curtain according to claim 1, characterized in that: A third transmission gear (8) is sleeved on the first stud (2). The third transmission gear can move along the surface of the first stud. The third transmission gear (8) meshes with the first transmission gear (4), and the first stud rotates as the third transmission gear rotates.
4. The position limiter for a curtain according to claim 1 or 3, characterized in that: A fourth transmission gear (9) is sleeved on the second stud (3). The fourth transmission gear can move along the surface of the second stud. The fourth transmission gear (9) meshes with the second transmission gear (5), and the second stud rotates as the fourth transmission gear rotates.
5. A limiter for a curtain according to any one of claims 1-3, characterized in that: A first end (21) corresponding to the second stud (3) is provided at one end of the first stud (2), and a second end (31) corresponding to the first stud is provided at one end of the second stud. Limiting parts (10) are provided on the end faces of the first end and the second end.
6. A limiter for a curtain according to any one of claims 1 to 3, characterized in that: A channel (11) is provided on the base (1). At least a part of the first stud and the second stud is located in this channel.