Curtain rail seal capable of limiting and stretching out and drawing back at will
By introducing a sliding engagement between positioning teeth and sliding teeth in the curtain track sealing, the curtains can be locked instantly and automatically, solving the problems of cumbersome operation and precise stopping of the curtain track, and improving the convenience of curtain adjustment as well as the reliability and aesthetics of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU YANGSHI YOUPIN DECORATION MATERIALS CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-04-24
AI Technical Summary
Existing curtain tracks are cumbersome to operate and cannot achieve precise stopping of the curtains at any position on the track. Furthermore, the additional components increase structural complexity and cost.
By using the sliding engagement of the positioning teeth inside the end cap with the sliding teeth on both sides of the right-angle plate, combined with the sliding cooperation between the end cap and the mounting groove, the curtain can be instantly and automatically locked and precisely positioned, eliminating the need for the traditional manual screw tightening method.
It provides an intuitive, one-button operation experience, improves the convenience of curtain opening and closing adjustment, ensures the long-term reliability and airtightness of the engagement between the sliding teeth and the positioning teeth, simplifies the structure, and enhances the product's aesthetics and service life.
Smart Images

Figure CN224155458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curtain track technology, and in particular to a curtain track seal that can be limited and freely extended / retracted. Background Technology
[0002] Curtain track sealing typically refers to a sealing device installed at both ends or joints of the curtain track. Its main function is to prevent curtain hooks, pulleys, or other accessories from falling off, while also serving an aesthetic purpose. It effectively covers the seams or gaps of the track, preventing dust accumulation or external objects from entering the track, ensuring smooth operation of the track. The design materials and methods of sealing usually vary depending on the material and style of the curtain track, and can be made of materials such as plastic, metal, and wood, or even beautified with specific decorative elements.
[0003] Existing curtain tracks still have some problems during use. For example, although traditional telescopic tracks have solved the problem of installation size tolerance, their limiting method mostly relies on manually tightening screws to lock the internal telescopic rod. This is cumbersome and cannot achieve precise stopping of the curtain at any position on the track. To achieve curtain positioning, independent cord buckles or beaded brakes are commonly used on the market. These additional components increase the complexity and cost of the structure and have problems such as inconvenience in operation and easy damage.
[0004] To address these issues, we offer a curtain track seal that is both adjustable and retractable. Utility Model Content
[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of being cumbersome to operate and inconvenient to stop the curtain at any precise position. To this end, we propose a curtain track sealing method that can limit position and can be extended and retracted at will.
[0006] To achieve the above objectives, this application adopts the following technical solution: a curtain track seal that can be limited and freely extended, including a seal head, an installation groove on the top of the seal head, positioning teeth on both sides of the inner cavity of the installation groove, a right-angle plate slidably connected to the inner cavity of the positioning teeth, sliding teeth fixedly connected to both sides of the right-angle plate, a cover slidably connected to the inner cavity of the installation groove, positioning blocks fixedly connected to both sides of the bottom of the cover, positioning grooves on both sides of the inner cavity of the installation groove, and the surface of the positioning block slidably connected to the surface of the positioning groove.
[0007] Preferably, positioning holes are provided on both sides of the inner cavity of the mounting groove, and positioning rods are fixedly connected to both sides of the bottom of the cover, with one end of the positioning rod slidably connected to the inner cavity of the positioning hole.
[0008] Preferably, the top of the right-angle plate has an installation opening for connecting to the curtain roller.
[0009] Preferably, a connector is fixedly connected to one side of the bottom of the end cap, and the connector has a connection port inside its cavity.
[0010] Preferably, the bottom of the end cap is provided with track grooves on both sides, and the inner cavity of the track grooves is used to move the curtain rollers.
[0011] Preferably, grooves are provided on both sides of the right-angle plate, and the side with the sliding tooth is fixedly connected to the inner cavity of the groove.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model achieves a sliding engagement between the positioning teeth set in the inner cavity of the mounting groove and the sliding teeth on both sides of the right-angle plate. When the user pulls the curtain, the right-angle plate can move step by step along the positioning teeth through the sliding teeth, producing a clear tactile feedback. When the force is stopped, the sliding teeth can quickly engage with the current tooth position under the action of its own structure. This realizes the instantaneous automatic locking and precise limiting of the curtain at any position on the track, eliminating the traditional manual screw fixing method and providing an intuitive, one-button operation experience, which greatly improves the convenience of curtain opening and closing adjustment and user experience.
[0014] 2. This utility model ensures that the cover can quickly, accurately, and securely cover the opening of the mounting groove by sliding the positioning block at the bottom of the cover with the positioning groove in the inner cavity of the mounting groove, and by inserting the positioning rod with the positioning hole, thus forming a sealed space. This effectively prevents dust and impurities from entering the internal mechanism, ensuring the long-term reliability and smoothness of the meshing transmission between the sliding teeth and the positioning teeth. At the same time, this packaging design does not require any exposed additional locking parts, has a simple and beautiful appearance, is easy to clean and maintain, and significantly improves the overall quality and service life of the product. Attached Figure Description
[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0016] Figure 1 This is a 3D diagram of a curtain track that can be positioned and extended at will.
[0017] Figure 2 This is an exploded view of the end cap and cover of a curtain track seal that can be positioned and extended at will.
[0018] Figure 3 This is an exploded view of the mounting groove and right-angle plate in the sealing of a curtain track that can be limited and freely extended.
[0019] Figure 4 This is a schematic diagram of the surface structure of the end cap in a curtain track seal that can be limited and freely extended.
[0020] Figure 5 This is a schematic diagram of the bottom cover structure of a curtain track seal that can be limited and freely extended.
[0021] Legend: 1. End cap; 2. Mounting groove; 3. Positioning tooth; 4. Right angle plate; 5. Slippery tooth; 6. Cover; 7. Positioning block; 8. Positioning groove; 9. Positioning hole; 10. Positioning rod; 11. Mounting port; 12. Connector; 13. Track groove; 14. Groove. Detailed Implementation
[0022] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.
[0023] Example 1
[0024] Please see Figures 1-5 This utility model is a curtain track seal that can be limited and freely extended, including a sealing head 1. The top of the sealing head 1 has an installation groove 2. The inner cavity of the installation groove 2 has positioning teeth 3 on both sides. The inner cavity of the positioning teeth 3 is slidably connected to a right angle plate 4. The right angle plate 4 is fixedly connected to both sides of the right angle plate 4. The inner cavity of the installation groove 2 is slidably connected to a cover 6. The bottom two sides of the cover 6 are fixedly connected to positioning blocks 7. The inner cavity of the installation groove 2 has positioning grooves 8 on both sides. The surface of the positioning block 7 is slidably connected to the surface of the positioning groove 8.
[0025] Specifically: End cap 1 is used to install the curtain rollers, mounting groove 2 is used to install the corresponding cover 6, positioning teeth 3 on both sides of the inner cavity of mounting groove 2 are arranged opposite each other, right angle plate 4 slides between the opposite positioning teeth 3 and is limited in movement by the bottom of cover 6, at the same time, when the roller is installed inside end cap 1, it is connected through mounting port 11 so that the roller is connected to right angle plate 4, which can limit the roller. Sliding tooth 5 slides between the teeth of positioning teeth 3. The material of sliding tooth 5 is polyoxymethylene, which has extremely high strength, rigidity, wear resistance and fatigue resistance, extremely low sliding friction coefficient, good self-lubrication, and can ensure the service life of the curtain. The positioning block 7 and positioning groove 8 are set to install cover 6.
[0026] Example 2
[0027] Please see Figures 1-5Based on embodiment 1, positioning holes 9 are provided on both sides of the inner cavity of the mounting groove 2, and positioning rods 10 are fixedly connected to both sides of the bottom of the cover 6. One end of the positioning rod 10 is slidably connected to the inner cavity of the positioning hole 9. The top of the right angle plate 4 is provided with an installation port 11, which is used to connect with the curtain roller. A connector 12 is fixedly connected to one side of the bottom of the end cap 1. A connection port is provided in the inner cavity of the connector 12. Track grooves 13 are provided on both sides of the bottom of the end cap 1. The inner cavity of the track groove 13 is used to move the curtain roller. Grooves 14 are provided on both sides of the right angle plate 4. One side of the sliding tooth 5 is fixedly connected to one side of the inner cavity of the groove 14.
[0028] Specifically: the positioning hole 9 and the positioning rod 10 help the cover 6 to be installed inside the mounting groove 2 and make it easy to find the corresponding installation direction. The mounting port 11 allows the curtain roller to be connected to the inside of the end cap 1 and is limited. The connector 12 and the connector port are used to connect the end of the curtain. The track groove 13 is concave to allow the curtain roller to be installed and slide normally. The groove 14 allows the sliding tooth 5 to engage with the positioning tooth 3 without affecting the movement of the right angle plate 4.
[0029] Working principle: When the user pulls the curtain, the force is transmitted through the curtain roller to the right-angle plate 4 connected to the top of the roller, forcing the right-angle plate 4 to slide along the direction of the positioning teeth 3 in the inner cavity of the mounting groove 2. At this time, the sliding teeth 5 fixed in the grooves 14 on both sides of the right-angle plate 4 engage and slide with the tooth surface of the positioning teeth 3. Under the action of the inclined tooth surface, the sliding teeth 5 are forced to undergo elastic deformation and climb over the tooth top, producing a clear tactile feedback and realizing step-by-step movement. When the user stops applying force, the sliding teeth 5 quickly rebound with their own elasticity and lock into the vertical tooth groove of the current tooth position, forming a mechanical self-locking, thereby accurately locking the right-angle plate 4 and the curtain roller connected to it in that position, realizing the instantaneous limit of the curtain at any position on the track. The cover 6 is accurately covered and fixed in the opening of the mounting groove 2 through the sliding cooperation between the positioning block 7 at its bottom and the positioning groove 8 in the mounting groove 2, and the guiding action of the positioning rod 10 inserted into the positioning hole 9, forming a sealed structure, effectively isolating dust and ensuring the long-term reliable operation of the internal meshing mechanism.
[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A curtain track seal that can be limited and freely extended, comprising a sealing head, characterized in that; The top of the end cap is provided with an installation groove, and positioning teeth are provided on both sides of the inner cavity of the installation groove. A right-angle plate is slidably connected to the inner cavity of the positioning teeth, and sliding teeth are fixedly connected to both sides of the right-angle plate. A cover is slidably connected to the inner cavity of the installation groove, and positioning blocks are fixedly connected to both sides of the bottom of the cover. Positioning grooves are provided on both sides of the inner cavity of the installation groove, and the surface of the positioning block is slidably connected to the surface of the positioning groove.
2. The curtain track sealing method that can be limited and freely extended / retracted according to claim 1, characterized in that: Positioning holes are provided on both sides of the inner cavity of the mounting groove, and positioning rods are fixedly connected to both sides of the bottom of the cover. One end of the positioning rod is slidably connected to the inner cavity of the positioning hole.
3. The curtain track sealing method that can be limited and freely extended / retracted according to claim 1, characterized in that: The right-angle plate has an installation opening at the top, which is used to connect to the curtain roller.
4. The curtain track sealing method that can be limited and freely extended / retracted according to claim 1, characterized in that: A connector is fixedly connected to one side of the bottom of the end cap, and the connector has a connection port inside its cavity.
5. The curtain track sealing method that can be limited and freely extended / retracted according to claim 1, characterized in that: The bottom of the end cap is provided with track grooves on both sides, and the inner cavity of the track grooves is used to move the curtain rollers.
6. The curtain track sealing method that can be limited and freely extended / retracted according to claim 1, characterized in that: The right-angle plate has grooves on both sides, and the sliding tooth side is fixedly connected to the inner cavity of the groove.