A non-punching curtain rail fixing structure

Abstract

This utility model discloses a curtain track fixing structure that does not require drilling, comprising: a housing, which contains a rotating shaft, an internal threaded ring, a screw, and an arm. The active bevel gear of the rotating shaft can drive the passive bevel gear of the internal threaded ring to move the screw, so that a contact surface on the screw can quickly approach a contact surface on the arm, thereby locking the arm to achieve the purpose of quick and clear operation.

Description

Technical Field

[0001] This utility model relates to the installation and fixing equipment for curtain tracks, and in particular to a curtain track fixing structure that does not require drilling. Background Technology

[0002] Generally, when installing curtains, a track fixing structure is first installed on the wall or window frame, and then the curtains are installed on the track fixing structure. The disadvantage of this installation method is that the wall or window frame must be fixed in a destructive way when installing the track fixing structure. For example, holes must be drilled in the wall or window frame with nails, bolts, or drilled before the nails or bolts can be fixed to the wall.

[0003] Therefore, existing technologies have proposed methods for installing curtain tracks without drilling. For example, Chinese Patent Publication No. CN218234690U discloses "An External Drill-Free Installation Mechanism for Curtains," Chinese Patent Publication No. CN219069900U discloses "A Connector for Drill-Free Installation," and US Patent Publication No. 10597938 discloses "CURTAIN MOUNTING UNIT." These cases disclose the use of two screws or a screw and bolt combination to achieve the purpose of drilling-free installation of curtain tracks. However, these prior art all share a common problem: they are not easy to operate and take a long time to operate.

[0004] Taking the structure of the previous case with Chinese patent announcement number CN219069900U as an example, the drive component needs to rotate many times before the worm gear part of the linkage component rotates once. And the worm gear part can only rotate once before the screw part can also rotate once. Only in this way can the locking block move forward or backward a little bit. This operation method is very inefficient and the effect is not ideal. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a non-drilling curtain track fixing structure, which solves the problems of low operational efficiency and inability to quickly fix curtain tracks in existing non-drilling track fixing structures.

[0006] The specific technical solution is as follows:

[0007] A no-drill curtain track fixing structure, comprising:

[0008] A housing has a through hole on one side and an opening at one end. One end of the opening is connected to a chamber. A polygonal support with arc-shaped sides is provided between the opening and the chamber. A round part is provided at the other end of the chamber. A guide groove with a shape corresponding to the shape of the polygonal support is provided at one end of the round part.

[0009] A rotating shaft is provided at the through hole of the housing and located on one side of the chamber. One end of the rotating shaft has an inner polygonal hole that is exposed at the through hole of the housing. The other end of the rotating shaft is provided with a drive bevel gear.

[0010] An internally threaded ring is provided in a circular part within the housing. The internally threaded ring has an internally threaded hole, and a passive bevel gear is provided at one end of the internally threaded ring. The passive bevel gear meshes with the active bevel gear of the rotating shaft, so that the rotating shaft drives the internally threaded ring to rotate without moving.

[0011] A screw rod passes through the internal threaded hole of the internal threaded ring and engages with the internal threaded hole. One end of the screw rod has a polygonal outer diameter with two rounded sides and fits into the polygonal bearing of the housing. The other end of the screw rod is located at the guide groove of the housing, so that the rotation of the internal threaded ring drives the screw rod to move without rotating. One end of the screw rod is provided with a mating surface, and the mating surface is provided with a polygonal through hole. A support surface is provided in the polygonal through hole, and a through hole with a diameter smaller than the polygonal through hole is provided on the support surface.

[0012] An arm has an elongated rod with a polygonal segment and a through segment. One end of the polygonal segment has a contact surface, and the other end is connected to the through segment. One end of the through segment has a hook. The outer diameter of the through segment is smaller than that of the polygonal segment, so that the adjacent part of the polygonal segment and the through segment forms a shoulder surface. The arm passes through the polygonal through hole of the screw through its rod, and the hook of the arm passes through the through hole of the support surface and hooks onto the support surface.

[0013] A spring is fitted onto the through section of the support arm and located inside the polygonal through hole of the screw. One end of the spring presses against the shoulder surface of the support arm and the other end presses against the support surface inside the polygonal hole.

[0014] Preferably, a rotating bearing portion is provided at the through hole, and the rotating shaft is located at the rotating bearing portion at the through hole of the housing.

[0015] Preferably, the housing is formed by two shell parts fitting together.

[0016] Preferably, the diameter of the virtual circumcircle formed by the polygonal segments of the support arm is greater than the outer diameter of the spring.

[0017] Preferably, the spring force is greater than the weight of the curtain.

[0018] Preferably, the round part is provided with an annular groove, and the passive bevel gear of the internal thread ring is provided with an annular rib on the rear side, the annular rib being engaged in the annular groove.

[0019] Preferably, the number of teeth of the active bevel gear on the rotating shaft is 0.7 to 1.5 times the number of teeth of the passive bevel gear of the internal threaded ring.

[0020] Compared with the prior art, the beneficial effects of this utility model are reflected in:

[0021] By adopting the above structure, in this utility model, the number of teeth of the active bevel gear on the rotating shaft is more than 0.7 times the number of teeth of the passive bevel gear on the internal threaded ring. Therefore, the active bevel gear on the rotating shaft can quickly and clearly drive the passive bevel gear of the internal threaded ring to rotate, thereby driving the screw to move. The movement of the screw can move the abutment surface toward the rear side of the abutment surface of the support arm to lock the support arm and thus achieve the purpose of this application. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0023] Figure 2 This is an exploded view of the present invention.

[0024] Figure 3 This is a cross-sectional view of the present invention.

[0025] Figure 4 for Figure 3 A cross-sectional view after the screw has moved.

[0026] Figure 5 for Figure 3 A schematic diagram showing the state in which the abutting surface of the central screw abuts against the rear side of the abutting surface of the support arm.

[0027] Explanation of reference numerals in the attached drawings: 10: Housing, 11: Shell component, 12: Through hole, 13: Opening, 14: Rotary bearing part, 15: Chamber, 16: Polygonal bearing seat, 17: Round part, 18: Guide groove, 19: Annular groove, 20: Rotating shaft, 21: Internal polygonal hole, 22: Driving bevel gear, 30: Internal threaded ring, 31: Internal threaded hole, 32: Driven bevel gear, 33: Annular rib, 40: Screw, 41: Abutment surface, 42: Polygonal through hole, 43: Support surface, 44: Through hole, 50: Support arm, 51: Rod part, 52: Polygonal segment, 53: Through section, 54: Abutment surface, 55: Hook part, 56: Shoulder surface, 60: Spring. Detailed Implementation

[0028] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model shall fall within the protection scope of this utility model.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Please see the appendix Figure 1-5 This embodiment provides a drilling-free curtain track fixing structure, which includes:

[0031] A housing 10 is formed by two shell parts 11 joined together. One side of the housing has a through hole 12, and one end has an opening 13. A bearing portion 14 is located at the through hole 12. The opening 13 connects to a chamber 15. A polygonal support 16 with arc-shaped sides is located between the opening 13 and the chamber 15. The other end of the chamber 15 has a rounded portion 17. One side of the rounded portion 17 has a guide groove 18 with a shape corresponding to the polygonal support 16. The other end of the rounded portion 17 has an annular groove 19. In this embodiment, the other end of the rounded portion is an annular groove, but it is not limited to this; it could also be an annular rib.

[0032] A rotating shaft 20 is provided with a bearing portion 14 located at the through hole 12 of the housing and on one side of the chamber 15. The rotating shaft 20 is displacement-limited by the bearing portion. One end of the rotating shaft is provided with an inner polygonal hole 21, which is exposed at the through hole 12 of the housing. The other end of the rotating shaft 20 is provided with a drive bevel gear 22. In this embodiment, the inner polygonal hole is a hexagonal hole, but it is not limited to this and can also be a triangular hole, a square hole, a cross hole, or a slotted hole.

[0033] An internally threaded ring 30 is disposed within a circular portion 17 of the housing. The internally threaded ring 30 has an internally threaded hole 31. One end of the internally threaded ring 30 is provided with a driven bevel gear 32, which meshes with a driving bevel gear 22 of the rotating shaft. The rear side of the driven bevel gear 32 of the internally threaded ring 30 is provided with an annular rib 33 and is engaged in an annular groove 19, allowing the internally threaded ring 30 to rotate without moving, driven by the rotating shaft 20. In this embodiment, the rear side of the driven bevel gear of the internally threaded ring is provided with an annular rib 33, but this is not a limitation; it could also be an annular groove symmetrical to the circular container.

[0034] A screw 40 has a polygonal outer diameter with rounded sides. This outer diameter structure can span the polygonal bearing 16 of the housing for rotational positioning. The outer diameter surface of the screw 40 is threaded. The screw 40 is located in the guide groove 18 of the housing and passes through the internal threaded hole 31 of the internal threaded ring 30 and is screwed into the internal threaded hole 31. The rotation of the internal threaded ring 30 can drive the screw 40 to move without rotating. One end of the screw 40 is provided with a stop surface 41. The stop surface 41 is provided with a polygonal through hole 42. The polygonal through hole 42 is provided along the long axis of the screw 40. A support surface 43 is provided inside the polygonal through hole 42. The support surface 43 is provided with a through hole 44 with a diameter smaller than that of the polygonal through hole 42.

[0035] An arm 50 has an elongated rod 51, which has a polygonal segment 52 and a through segment 53. In this embodiment, the cross-section of the polygonal segment 52 is hexagonal, but it is not limited to this and can also be triangular or square. Its shape corresponds to the polygonal through hole 42 of the screw 40, and the diameter of the virtual circumscribed circle formed by the polygonal segment 50 must be greater than the outer diameter of the spring 60. One end of the polygonal segment 52 is provided with a contact surface 54, and the other end is connected to the through segment 53. One end of the through segment 53 is provided with a hook part 55. The side wall of the hook part 55 is inclined to facilitate passing through the through hole 44. The outer diameter of the through segment 53 is smaller than that of the polygonal segment 52. Therefore, a shoulder surface 56 is formed at the junction of the polygonal segment 52 and the through segment 53. The shoulder surface 56 is supported by a spring to make the hook part press against the support surface for limitation. The support arm 50 has its rod portion 51 inserted through the polygonal through hole 42 of the screw, and the hook portion 55 of the support arm passes through the through hole 44 of the support surface and is hooked to the other side of the support surface 43 for positioning.

[0036] A spring 60 is fitted into the through section 53 of the support arm and located in the polygonal through hole 42 of the screw. One end of the spring 60 presses against the shoulder surface 56 of the support arm rod 51, and the other end presses against the support surface 43 in the polygonal hole. The hook portion limits the movement to ensure that the support arm 50 is fixed in the screw.

[0037] With the above structure, the curtain track fixing structure of the present invention, which eliminates the need for drilling, is used in the same way as traditional products, installed at both ends of a general curtain track. Under normal conditions, the support arm 50 will protrude outward from the opening 13 of the housing due to the elastic force of the spring 60. Figure 1 and Figure 3As shown, when installing the curtain track, the user first places the abutment surface 54 against one side of the window frame. The compression spring 60 then retracts the support arm 50 into the screw 40. Next, the other end of the curtain track is aligned with the other side of the window frame, and the spring force causes the support arm 50 to spring out, allowing the abutment surface 54 to press against the window frame. It is important to emphasize that the spring force of the spring 60 must be sufficient to support the weight of the curtain track, so that the curtain track can be temporarily fixed to the window frame using the spring force.

[0038] When locking, the user can rotate the rotating shaft 20 through the inner polygonal hole. The driving bevel gear 22 of the rotating shaft will drive the driven bevel gear 32 of the inner threaded ring 30, causing the inner threaded ring 30 to rotate as well. The inner threaded hole 31 of the inner threaded ring 30 will then drive the screw 40, causing the screw 40 to move. Since the contact surface 54 of the support arm 50 is already against the window frame or wall, the contact surface 41 of the screw 40 can gradually approach and abut against the back of the contact surface 54 of the support arm. In this way, the user can lock the support arm 50, allowing the curtain track to be installed without drilling, with the curtain track pressed against both sides of the window frame, achieving the invention's purpose of installing curtain tracks without drilling.

[0039] It should be specifically noted that, in this invention, the number of teeth of the driving bevel gear 22 on the rotating shaft is at least 0.7 times the number of teeth of the driven bevel gear 32 on the internal threaded ring 30, preferably between 0.7 and 1.5 times. That is, if the number of teeth of the driven bevel gear 32 on the internal threaded ring 30 is 10, then the number of teeth of the driving bevel gear 22 on the rotating shaft 20 is 7 to 15. This ensures that the rotation of the rotating shaft is clearly and efficiently transmitted to the screw, allowing the screw 40 and the abutment surface 41 to move efficiently.

[0040] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A punchless curtain track fixing structure, characterized by, Includes: A housing has a through hole on one side and an opening at one end. One end of the opening is connected to a chamber. A polygonal support with arc-shaped sides is provided between the opening and the chamber. A round part is provided at the other end of the chamber. A guide groove with a shape corresponding to the shape of the polygonal support is provided at one end of the round part. A rotating shaft is provided at the through hole of the housing and located on one side of the chamber. One end of the rotating shaft has an inner polygonal hole that is exposed at the through hole of the housing. The other end of the rotating shaft is provided with a drive bevel gear. An internally threaded ring is provided in a circular part within the housing. The internally threaded ring has an internally threaded hole, and a passive bevel gear is provided at one end of the internally threaded ring. The passive bevel gear meshes with the active bevel gear of the rotating shaft, so that the rotating shaft drives the internally threaded ring to rotate without moving. A screw rod passes through the internal threaded hole of the internal threaded ring and engages with the internal threaded hole. One end of the screw rod has a polygonal outer diameter with two rounded sides and fits into the polygonal bearing of the housing. The other end of the screw rod is located at the guide groove of the housing, so that the rotation of the internal threaded ring drives the screw rod to move without rotating. One end of the screw rod is provided with a mating surface, and the mating surface is provided with a polygonal through hole. A support surface is provided in the polygonal through hole, and a through hole with a diameter smaller than the polygonal through hole is provided on the support surface. An arm has an elongated rod with a polygonal segment and a through segment. One end of the polygonal segment has a contact surface, and the other end is connected to the through segment. One end of the through segment has a hook. The outer diameter of the through segment is smaller than that of the polygonal segment, so that the adjacent part of the polygonal segment and the through segment forms a shoulder surface. The arm passes through the polygonal through hole of the screw through its rod, and the hook of the arm passes through the through hole of the support surface and hooks onto the support surface. A spring is fitted onto the through section of the support arm and located inside the polygonal through hole of the screw. One end of the spring presses against the shoulder surface of the support arm and the other end presses against the support surface inside the polygonal hole.

2. A punchless window-treatment track-attachment structure as defined in claim 1, wherein A rotating bearing portion is provided at the through hole, and the rotating shaft is located at the rotating bearing portion at the through hole of the housing.

3. A punchless window-treatment track-attachment structure as defined in claim 1, wherein The housing is formed by two shell parts fitting together.

4. A punchless window-treatment track-attachment structure as defined in claim 1, wherein The diameter of the virtual circumcircle formed by the polygonal segments of the support arm is greater than the outer diameter of the spring.

5. A punchless window-treatment track-attachment structure as defined in claim 1, wherein The spring force is greater than the weight of the curtain.

6. A punchless window-treatment track-attachment structure as defined in claim 3, wherein The circular part is provided with an annular groove, and the passive bevel gear of the internal thread ring is provided with an annular rib on the rear side, the annular rib being engaged in the annular groove.

7. A punchless window-treatment track-attachment structure as defined in claim 1, wherein The number of teeth on the active bevel gear on the rotating shaft is 0.7 to 1.5 times the number of teeth on the passive bevel gear of the internal threaded ring.

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