Combined curtain track

Abstract

According to the technical scheme, the combined curtain track is characterized in that the combined curtain track comprises a track body provided with a clamping part and a guide rail connector, and the outer side edge of the guide rail connector extends downwards to form a clamping edge matched with the track body; a first protrusion extending transversely and a second protrusion extending obliquely downwards are symmetrically arranged on the side wall of the track body, and the length of the first protrusion is larger than that of the second protrusion. And a first groove and a second groove which are respectively matched with the outer contours of the first lug boss and the second lug boss are formed in the clamping edge outside the track main body. The rigidity of the track body is improved through the arrangement of the first protrusions, and bending, twisting and deformation caused by stress of the track are reduced; the clamping edges can generate reverse torque through friction force and mechanical limiting to offset external torsional moment. The first groove and the second groove are connected and matched with the first protrusion and the second protrusion, stress concentration is avoided, and the service life of the track body is prolonged.

Description

Technical Field

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

[0002] Currently, curtain tracks are devices used to install and hang curtains. They are usually made of metal or plastic and provide convenient operation and aesthetic effects. Most existing curtain tracks are made of extruded aluminum profiles. To reduce transportation costs, the entire curtain track is usually divided into multiple sections and connected at the installation site using guide rail connectors.

[0003] However, there are still some defects in the existing technology. The existing curtain rails are subjected to alternating loads (the combined effect of periodic torsional torque and vertical pressure) during the reciprocating motion of the curtains. The cyclic stress accelerates the aging of the rails, reduces their load-bearing capacity, shortens their service life, and makes them prone to bending or even breakage. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a combined curtain track.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a track body with a snap-fit ​​portion and a guide rail connector, wherein the outer edge of the guide rail connector extends downward to form a snap-fit ​​edge adapted to the track body, and the sidewall of the track body is symmetrically provided with a first protrusion extending laterally and a second protrusion extending obliquely downward, wherein the length of the first protrusion is greater than that of the second protrusion; the snap-fit ​​edge outside the track body is provided with a first groove and a second groove respectively adapted to the outer contours of the first protrusion portion and the second protrusion portion.

[0006] The present invention is further configured such that: two reinforcing ribs A are symmetrically arranged along the longitudinal direction at the top of the guide rail connector, and the reinforcing ribs A are close to the two side edges of the top of the guide rail connector.

[0007] The present invention is further configured such that: the lower end of the track body adopts an outward expansion structure on both sides and is flush with the outer side of the guide rail connector, and symmetrical vertical plates extend upward from its outer edge, and the guide rail connector is adapted to the contour of the vertical plates.

[0008] The present invention is further configured such that: the track body is provided with a sliding cavity, the edge of the sliding cavity is provided with symmetrical baffles, and the side of the sliding cavity and the inner side of the baffles are provided with limiting protrusions.

[0009] The present invention is further configured such that: the inner wall of the sliding cavity is provided with reinforcing ribs B.

[0010] In summary, this utility model has the following beneficial effects: the setting of the first protrusion and the reinforcing rib A increases the track's resistance to torsion and bending; the setting of the reinforcing rib B directly increases the strength and reduces the bending and torsional deformation caused by the track under stress; at the same time, the fitting contact between the vertical plate and the guide rail connector forms a closed box-shaped cross section, increasing the torsional section modulus and improving the torsional stiffness of the track system; the setting of the snap-fit ​​edge allows the snap-fit ​​edge to generate a reverse torque through friction or mechanical limiting when the track body generates torque, offsetting the torsional torque and reducing the torsional deformation of the track body; the setting of the first groove and the second groove and the first protrusion and the second protrusion connecting and cooperating avoids stress concentration at the snap-fit ​​part, increasing the service life of the track body. Attached Figure Description

[0011] Figure 1 This is a side view of the structure in this embodiment;

[0012] Figure 2 This is a side view of the main track structure in this embodiment;

[0013] Figure 3 This is a side view of the guide rail connector in this embodiment;

[0014] Reference numerals: 1. Track body; 11. Sliding cavity; 12. Snap-fit ​​part; 121. Snap-fit ​​protrusion; 122. Snap-fit ​​groove; 13. First protrusion; 14. Second protrusion; 15. Baffle; 151. Limiting protrusion; 16. Reinforcing rib B; 17. Vertical plate; 2. Guide rail connector; 21. Snap-fit ​​edge; 211. First groove; 212. Second groove; 22. Reinforcing rib A. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This embodiment discloses a combined curtain track, such as Figures 1 to 3As shown, the system includes a track body 1 with a snap-fit ​​portion 12 and a guide rail connector 2. The snap-fit ​​portion includes a snap-fit ​​protrusion 121 on the track body 1 and a snap-fit ​​groove 122 on the guide rail connector 2. The outer edge of the guide rail connector 2 extends downward to form a snap-fit ​​edge 21 that adapts to the track body 1. The snap-fit ​​edge 21 covers both sides of the track body 1 and fits tightly against both sides. When the track body 1 twists, the snap-fit ​​edge 21 can generate a reverse torque through friction or mechanical limiting to counteract the external torsional torque and reduce the torsional deformation of the track body 1. The sidewall of the track body is symmetrically provided with a first protrusion 13 extending laterally and a second protrusion 14 extending obliquely downward. The length of the first protrusion 13 is greater than that of the second protrusion 14. The first protrusion 13 has a longer extension in the lateral direction, which can significantly increase the lateral stiffness of the track body 1 and make it difficult for the track body 1 to bend laterally. The snap-fit ​​edge 21 on the outside of the track body 1 is provided with a first groove 211 and a second groove 212 that are adapted to the outer contours of the first protrusion 13 and the second protrusion 14, respectively. The guide rail connector 2, by providing a first groove 211 and a second groove 212 to connect and cooperate with the first protrusion 13 and the second protrusion 14 respectively, can disperse the stress on the locking part 12 to the first protrusion 13 and the second protrusion 14, avoiding stress concentration; and when the track is twisted, this cooperation can increase the mechanical limiting strength of the locking edge 21, so that the locking edge 21 can better suppress the twisting of the track body 1, reduce track rotation, and increase service life; the second protrusion 14 and the second groove 212 can cooperate to form a pair of inclined contact surfaces with opposite directions. When subjected to vertical force (such as gravity), the contact surfaces can generate a lateral component force, which can limit the lateral relative movement of the track body 1 relative to the guide rail connector 2, making the installation of the track body 1 more stable.

[0017] To further improve the design, the top of the guide rail connector 2 is symmetrically provided with two reinforcing ribs A22 along the longitudinal direction. The top surface of the guide rail connector 2 mainly receives torsional and bending forces from the rail body 1. The setting of the reinforcing ribs A22 increases the rigidity of the top surface of the guide rail connector 2, directly increasing the axial resistance to bending and torsion of the guide rail connector 2. The reinforcing ribs A22 are close to the two sides of the top of the guide rail connector 2. When torsion occurs, the shear stress at the edge of the cross section is the greatest. The reinforcing ribs A22 close to the two edges effectively improve the local stiffness, effectively resist shear deformation, and reduce the torsion angle.

[0018] Further improvements include an outward-expanding structure on both sides of the lower end of the track body 1, flush with the outer edge of the guide rail connector 2, with symmetrical vertical plates 17 extending upwards from its outer edge. The guide rail connector 2 conforms to the contour of the vertical plates 17. The vertical plates 17 significantly increase the moment of inertia of the track body 1, enhancing its resistance to lateral bending. Simultaneously, the mating contact between the vertical plates 17 and the guide rail connector 2 forms a closed box-shaped section, increasing the torsional section modulus and thus improving the torsional stiffness of the track system.

[0019] Further improvements include a sliding cavity 11 for the track body 1, housing an electric module that drives the curtain movement. Symmetrical baffles 15 are located along the edges of the sliding cavity 11, and limiting protrusions 151 are provided on the sides of the sliding cavity 11 and the inner sides of the baffles 15. The baffles 15 stabilize the electric module, reducing sway, while the limiting protrusions 151 reduce contact between the electric module and the inner wall of the baffles 15, minimizing friction and resulting in smoother, more fluid movement.

[0020] To further improve the design, the inner wall of the sliding cavity 11 is provided with reinforcing ribs B16. The reinforcing ribs B16 increase the rigidity of the track, reduce rotational swaying under stress, and at the same time, the reinforcing ribs B16 can increase the micro-roughness of the contact surface, improve the effective friction between the wheel and the rail, prevent slippage, and the raised reinforcing ribs B16 can effectively disperse the local pressure applied by the wheel, reduce stress concentration on the contact surface, extend the maintenance cycle, and reduce the maintenance frequency of the track body 1.

[0021] Working principle of this utility model

[0022] During installation, insert the guide rail connector 2 into the end of the first section of the track body 1, ensuring that the track body 1 is fully inserted into the guide rail connector 2. Secure the guide rail connector 2 and the track body 1 with the matching screws. Insert the second section of the track body 1 into the other end of the connector and secure it with screws as well. The guide rail connector 2 can be easily and conveniently combined with the track body 1.

[0023] In use, the electric module moves within the sliding cavity 11 to open and close the curtains. The linkage module can move stably and reliably within the track, generating minimal vibration, thus reducing stress and increasing durability. The above description is merely a preferred embodiment of this utility model and is not intended to limit its scope. Any modifications, equivalent substitutions, or improvements made within the design concept of this utility model should be included within its protection scope.

Claims

1. A combined curtain track, comprising a track body (1) with a snap-fit ​​portion (12) and a guide rail connector (2), characterized in that: The outer edge of the guide rail connector (2) extends downward to form a snap-fit ​​edge (21) that is adapted to the rail body (1). The side wall of the rail body (1) is symmetrically provided with a first protrusion (13) extending laterally and a second protrusion (14) extending obliquely downward. The length of the first protrusion (13) is greater than that of the second protrusion (14). The snap-fit ​​edge (21) outside the rail body (1) is provided with a first groove (211) and a second groove (212) that are adapted to the outer contours of the first protrusion (13) and the second protrusion (14) respectively.

2. The combined curtain track according to claim 1, characterized in that: The top of the guide rail connector (2) is provided with two reinforcing ribs A (22) symmetrically arranged in the longitudinal direction. The reinforcing ribs A (22) are close to the two side edges of the top of the guide rail connector (2).

3. A combined curtain track according to claim 1, characterized in that: The lower ends of the track body (1) adopt an outward expansion structure and are flush with the outer side of the guide rail connector (2). Symmetrical vertical plates (17) extend upward from its outer edge. The guide rail connector (2) is adapted to the contour of the vertical plates (17).

4. A combined curtain track according to claim 1, characterized in that: The track body (1) is provided with a sliding cavity (11), and the edge of the sliding cavity (11) is provided with symmetrical baffles (15). The side of the sliding cavity (11) and the inner side of the baffle (15) are provided with limit protrusions (151).

5. A combined curtain track according to claim 4, characterized in that: The inner wall of the sliding cavity (11) is provided with reinforcing ribs B (16).

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