Ceiling keel

The unfolding and rewinding of the stretch ceiling is driven by a screw structure and a moving rewinding structure. Combined with light panel lighting, this solves the problem of the lack of flexibility in traditional ceiling systems and achieves a low-cost, high-efficiency deformable ceiling decoration effect.

CN224228083UActive Publication Date: 2026-05-12GUANGZHOU GOLD KINGS BUILDING MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU GOLD KINGS BUILDING MATERIAL CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional fixed ceiling structures are not flexible enough, making it difficult to combine electric adjustment with lighting effects, and they also have high installation and maintenance costs.

Method used

Employing a screw structure, guide blocks, and a moving winding structure, the screw motor drives the gear meshing to move the winding roller, thus enabling the unfolding and winding of the stretch ceiling. Combined with stretch ceiling materials of different light transmittance and light panel lighting, a deformable dynamic ceiling can be achieved.

Benefits of technology

It enables rapid installation, maintenance, and replacement of stretch ceilings, reduces costs, provides flexible decorative effects and diverse lighting variations, and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224228083U_ABST
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Abstract

The utility model discloses a ceiling keel which comprises two side-by-side ceiling keels, lead screw structures are arranged on the opposite sides of the two ceiling keels, guide blocks are movably installed on the lead screw structures, and a movable rolling structure is connected between the two guide blocks. A first edge buckling strip and a second edge buckling strip are arranged at the two ends of the bottom of each ceiling keel respectively, a first winding roller and a second winding roller are arranged in the movable winding structure, a first soft film ceiling used for being connected with the first edge buckling strips is wound around the first winding roller, and a second soft film ceiling used for being connected with the second edge buckling strips is wound around the second winding roller. According to the ceiling keel, the first soft film ceiling and the second soft film ceiling are unfolded and rolled through the lead screw structure, the guide block and the movable rolling structure on the ceiling keel, the ceiling keel capable of being used for movably adjusting the deformed ceiling is achieved by being matched with materials with different light transmittance and lamp panel illumination, and decoration can be conveniently and rapidly installed, maintained or replaced.
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Description

Technical Field

[0001] This utility model relates to the field of ceiling technology, specifically a ceiling joist for deformable ceilings. Background Technology

[0002] Suspended ceilings are an important part of interior decoration. They not only beautify the space, but also conceal electrical conduits, water pipes, air conditioning pipes and other equipment, making the interior environment cleaner and more beautiful. They are a commonly used structure in building decoration.

[0003] Traditional suspended ceiling structures mostly employ a fixed design. They are typically supported by a fixed keel frame, with the ceiling panels fixed to the keel. While this structure is simple and low-cost, the installed ceiling panels cannot be moved or adjusted, lacking flexibility and resulting in poor visual appeal. The ability to electrically adjust and change the ceiling while simultaneously incorporating lighting effects further complicates the process. Currently, some electrically adjustable deformable ceilings exist, but while these structures improve flexibility, they are often complex and heavy, making installation, maintenance, and panel replacement inconvenient and costly.

[0004] Therefore, a ceiling joist is provided that can be used for electrically movable and adjustable deformable ceiling systems. Utility Model Content

[0005] This utility model proposes a ceiling keel for use in electrically movable and adjustable deformable ceiling systems. The technical solution adopted by this utility model is as follows:

[0006] A type of ceiling keel includes two parallel ceiling keels. Each of the two ceiling keels has a threaded rod structure on opposite sides. Guide blocks are movably mounted on the threaded rod structures. A movable winding structure connects the two guide blocks. Each ceiling keel has a first edge strip and a second edge strip at its bottom ends. The movable winding structure contains a first winding roller and a second winding roller. A first layer of flexible ceiling film for connecting the first edge strip is wound around the first winding roller, and a second layer of flexible ceiling film for connecting the second edge strip is wound around the second winding roller. The first and second edge strips are fixed to the ceiling keel using conventional methods such as angle brackets or welding, which are not limited to a single method. The light panel is an LED light panel. Flexible ceiling film, also known as ceiling film, light film, curtain, or elastic fabric, is an interior decoration material widely used in recent years. Edge strips are a common structure in the installation of flexible ceiling film. The above are all existing mature technologies and will not be described in detail here.

[0007] Preferably, the lead screw structure includes a snap-fit ​​component and a snap-fit ​​groove opened on one side of the ceiling keel. A snap-fit ​​block is inserted into the snap-fit ​​groove. Both ends of the bottom of the ceiling keel are provided with through grooves for connecting the inside of the snap-fit ​​groove. Both ends of the bottom of the snap-fit ​​block are provided with snap-fit ​​slots corresponding to the through grooves. The snap-fit ​​component passes through the through groove and is snap-fitted into the snap-fit ​​slot.

[0008] Preferably, the locking component includes a rotating block, a sleeve at the top of the rotating block, a spring fitted inside the sleeve, protrusions on the upper parts of both sides of the sleeve, a slot at the bottom of the locking groove corresponding to the protrusions, and a slot in the middle of the locking groove corresponding to the protrusions, with the slots one and two staggered. The staggered slots one and two engage the protrusions, thereby securing the locking block to the ceiling joist. The elasticity of the spring provides downward pressure to the rotating block, preventing it from rotating after installation.

[0009] Preferably, the lower part of the snap-fit ​​block extends into a sliding groove block, the side of the sliding groove block is provided with a lead screw mounting groove, a lead screw guide rail is installed in the lead screw mounting groove, a lead screw motor is installed at one end of the sliding groove block, and the end of the lead screw guide rail is connected to the lead screw motor.

[0010] Preferably, the guide block has a lead screw nut on the upper part facing the sliding groove block, and the sliding groove block on the same side has an insertion groove at the lower part. The guide block is movably mounted on the lead screw guide rail through the lead screw nut, and the insertion groove has through openings on both sides.

[0011] Preferably, the movable winding structure includes a hollow roller box, with connecting blocks at both ends. Each connecting block has threaded grooves on both sides, and the connecting blocks are plugged into the insertion grooves. The through-hole and the threaded grooves are fixed by a bolt threaded connection. The top of the roller box is an openable cover, a common structure in the prior art, and will not be described in detail here.

[0012] Preferably, both take-up roller one and take-up roller two are mounted in the roller box via shafts. Both ends of take-up roller one are coaxially connected to gear one, and both ends of take-up roller two are coaxially connected to gear two. Both sides inside the roller box are coaxially connected to gear three, and the lower part of gear three is simultaneously meshed with gear one and gear two.

[0013] Preferably, slots 1 are provided on both sides of the roller box for the extension of either the first or second flexible film ceiling, and slots 2 are provided at both ends of the top of the roller box for the extension of the upper part of the third gear.

[0014] Preferably, the bottom surface of the sliding block is provided with a toothed groove, and the upper part of the gear three extends out of the slot two and meshes with the toothed groove.

[0015] Preferably, both the side of the ceiling joist and the side of the snap-fit ​​connector are provided with graduations. A smoke sensor is installed on the side of the sliding groove block opposite to the screw mounting groove. Decorative patterns are provided on both the first and second stretch ceiling films. The edges of both the first and second stretch ceiling films are edge-wrapped to stabilize the shape of the stretch ceiling, prevent deformation during roll-up, and prevent fraying. The graduations facilitate accurate selection of building materials of the corresponding length during construction, reducing the time and error of manual measurement. The smoke sensor can be different gas detection devices or temperature detection devices, etc., and can be replaced according to the needs of different scenarios; no single limitation is made here. The first and second stretch ceiling films can be made of materials with different light transmittance, such as glossy films, translucent films, matte films, etc.; no single limitation is made here.

[0016] A variation of the structure described above includes the following:

[0017] 1) The screw motors on the two ceiling joists work simultaneously, driving the guide blocks on the corresponding sides to move synchronously in the screw mounting slots through the screw guide rails;

[0018] 2) When the guide block moves along the screw guide rail, due to the meshing and rotation of gear three with the tooth groove, gear one and gear two also rotate, driving take-up roller one and take-up roller two to rotate synchronously. If it moves towards take-up roller one, take-up roller one will take up the soft film ceiling one, and take-up roller two will unfold the soft film ceiling two. If it moves towards take-up roller two, take-up roller two will take up the soft film ceiling two, and take-up roller one will unfold the soft film ceiling one.

[0019] 3) The decorative ceiling with different patterns and illumination levels is created by using light panels to illuminate the stretch ceiling 1 and stretch ceiling 2.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model's structure, through the installation of a screw structure, guide block, movable winding structure, and two stretch ceiling panels on the ceiling joists, allows the stretch ceiling panels one and two to unfold or retract with the movable winding structure, presenting a deformable dynamic ceiling. By using stretch ceiling panels one and two with different light transmittance materials, combined with the lighting of the light panel, the indoor lighting effect can be adjusted according to the movement and deformation of stretch ceiling panels one and two, achieving different indoor lighting and decorative effects. The stretch ceiling panels one and two are wound up by winding rollers one and two. Because stretch ceiling panels one and two are lightweight, they are easy to install, maintain, or replace quickly, and the installation cost is low.

[0022] By setting up snap-fit ​​connectors and slots to connect the ceiling keel and snap-fit ​​blocks, and setting up connecting blocks and plug-in slots to connect the guide blocks and the movable winding structure, modular connection and installation are adopted, which makes installation quick and convenient and effectively improves construction efficiency.

[0023] The structure of this utility model allows the deformation of the suspended ceiling to be achieved through gear meshing and linkage. This enables the screw motor to simultaneously drive the screw guide rail, winding roller one, and winding roller two to rotate and wind up, thereby driving the stretch ceiling one and stretch ceiling two to wind up or unwind. The deformation speed is fast, and the decoration is beautiful and flexible. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram showing the ceiling keel, sliding groove block, and movable winding structure of this utility model before they are connected.

[0026] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the connection between the snap-fit ​​component and snap-fit ​​block and the snap-fit ​​slot at part A;

[0027] Figure 4 This is a bottom view of the card slot interior of this utility model;

[0028] Figure 5 This is an enlarged schematic diagram of the connection between the guide block and the movable winding structure of this utility model;

[0029] Figure 6 This is a schematic diagram of a partial internal connection structure of the mobile winding structure of this utility model.

[0030] 1. Ceiling keel; 11. Clip-on groove; 12. Through groove; 2. Roller box; 3. Screw structure; 31. Clip-on block; 32. Clip groove; 33. Groove opening one; 34. Groove opening two; 35. Sliding groove block; 36. Screw mounting groove; 37. Screw guide rail; 38. Screw motor; 4. Guide block; 41. Screw nut; 42. Insertion groove; 43. Through opening; 44. Bolt; 45. Connecting block; 4 6. Threaded groove; 5. Moving winding structure; 51. Winding roller one; 52. Winding roller two; 53. Gear one; 54. Gear two; 55. Gear three; 56. Slot one; 61. Edge retaining strip one; 62. Edge retaining strip two; 71. Stretch ceiling one; 72. Stretch ceiling two; 9. Snap-fit ​​component; 91. Rotating block; 92. Sleeve; 93. Spring; 94. Protrusion; 10. Light panel; 101. Gear groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-6 A type of ceiling joist, also known as a deformable ceiling, includes two parallel ceiling joists 1. A light panel 10 is installed between the two ceiling joists 1. Each of the two ceiling joists 1 has a screw structure 3 on opposite sides. A guide block 4 is movably installed on the screw structure 3. A movable winding structure 5 connects the two guide blocks 4. Each ceiling joist 1 has a first edge strip 61 and a second edge strip 62 at its bottom ends. The movable winding structure 5 contains a first winding roller 51 and a second winding roller 52. The first winding roller 51 has a flexible ceiling film 71 wound around it for connecting the first edge strip 61, and the second winding roller 52 has a flexible ceiling film 72 wound around it for connecting the second edge strip 62. The first edge strip 61 and the second edge strip 62 are fixed to the ceiling joists 1 by conventional methods such as angle brackets or welding, which are not limited to a single method. The light panel 10 is an LED light panel 10. Stretch ceiling, also known as ceiling film, light film, curtain, or elastic fabric, is an interior decoration material that has been widely used in recent years. Edge strips are a common structure in the installation of stretch ceiling. The above are all existing mature technologies, and the structure will not be described in detail here.

[0033] The lead screw structure 3 includes a snap-fit ​​component 9 and a snap-fit ​​groove 11 opened on one side of the ceiling keel 1. A snap-fit ​​block 31 is inserted into the snap-fit ​​groove 11. Both ends of the bottom of the ceiling keel 1 are provided with through grooves 12 for connecting the inside of the snap-fit ​​groove 11. Both ends of the bottom of the snap-fit ​​block 31 are provided with snap-fit ​​slots 32 corresponding to the through grooves 12. The snap-fit ​​component 9 passes through the through groove 12 and is snap-fitted into the snap-fit ​​slot 32.

[0034] The snap-fit ​​component 9 includes a rotating block 91, with a sleeve 92 at its top. A spring 93 is fitted inside the sleeve 92. Both sides of the sleeve 92 have protrusions 94 at their upper parts. The bottom of the slot 32 has a slot 33 corresponding to the protrusions 94, and the middle of the slot 32 has a slot 34 corresponding to the protrusions 94. The slots 33 and 34 are staggered. The staggered slots 33 and 34 engage the protrusions 94, thus securing the snap-fit ​​component 31 to the ceiling joist 1. The elasticity of the spring 93 provides downward pressure to the rotating block 91, preventing it from rotating after installation.

[0035] The lower part of the snap-fit ​​block 31 extends into a sliding groove block 35. The sliding groove block 35 has a lead screw mounting groove 36 on its side. A lead screw guide rail 37 is installed in the lead screw mounting groove 36. A lead screw motor 38 is installed at one end of the sliding groove block 35. The end of the lead screw guide rail 37 is connected to the lead screw motor 38.

[0036] The guide block 4 is provided with a lead screw nut 41 on the upper part of the side facing the sliding groove block 35, and the sliding groove block 35 on the same side is provided with a plug groove 42 at the lower part. The guide block 4 is movably mounted on the lead screw guide rail 37 through the lead screw nut 41, and the plug groove 42 is provided with through openings 43 on both sides.

[0037] The movable winding structure 5 includes a hollow roller box 2. Both ends of the roller box 2 are provided with connecting blocks 45. The connecting blocks 45 are provided with threaded grooves 46 on both sides. The connecting blocks 45 are inserted into the insertion grooves 42. The through opening 43 and the threaded grooves 46 are threadedly connected and fixed by a bolt 44.

[0038] Both take-up roller 1 51 and take-up roller 2 52 are mounted inside the roller box 2 via shafts. Both ends of take-up roller 1 51 are coaxially connected to gear 1 53, and both ends of take-up roller 2 52 are coaxially connected to gear 2 54. Both sides inside the roller box 2 are coaxially connected to gear 3 55, and the lower part of gear 3 55 is simultaneously engaged with gear 1 53 and gear 2 54.

[0039] Both sides of the roller box 2 are provided with slots 56 for the extension of the first or second soft film ceiling 71 or the second soft film ceiling 72, and both ends of the top of the roller box 2 are provided with slots 2 for the upper part of the third gear 55 to extend.

[0040] The bottom surface of the sliding groove block 35 is provided with a toothed groove 101, and the upper part of the gear 3 55 extends out of the slot 2 and meshes with the toothed groove 101.

[0041] Both the side of the ceiling joist 1 and the side of the snap-fit ​​component 9 are marked with graduations. A smoke sensor is installed on the side of the sliding groove block 35 opposite to the screw mounting groove 36. Decorative patterns are provided on both the first stretch ceiling 71 and the second stretch ceiling 72. The edges of both the first stretch ceiling 71 and the second stretch ceiling 72 are edge-wrapped to stabilize the shape of the stretch ceiling, prevent deformation during roll-up, and prevent fraying. The graduations facilitate accurate selection of building materials of the corresponding length during construction, reducing the time and error of manual measurement. The smoke sensor can be different gas detection devices or temperature detection devices, etc., and can be replaced according to the needs of different scenarios; no single limitation is made here. The first stretch ceiling 71 and the second stretch ceiling 72 can be made of materials with different light transmittance, such as glossy film, translucent film, matte film, etc.; no single limitation is made here.

[0042] A ceiling deformation method based on the structure described above includes the following:

[0043] 1) The screw motors 38 on the two ceiling joists 1 work simultaneously, and drive the guide blocks 4 on the corresponding side to move synchronously in the screw mounting groove 36 through the screw guide rail 37;

[0044] 2) When the guide block 4 moves along the screw guide rail 37, due to the meshing and rotation of gear 3 55 with gear groove 101, gear 1 53 and gear 2 54 also rotate, driving take-up roller 1 51 and take-up roller 2 52 to rotate synchronously. If it moves towards take-up roller 1 51, take-up roller 1 51 will take up the soft ceiling 1 71 and take-up roller 2 52 will unfold the soft ceiling 2 72. If it moves towards take-up roller 2 52, take-up roller 2 52 will take up the soft ceiling 2 72 and take-up roller 1 51 will unfold the soft ceiling 1 71.

[0045] 3) The stretch ceiling 71 and stretch ceiling 72 are deformed decorative ceilings with different patterns and illumination levels when illuminated by the light panel 10.

[0046] This utility model utilizes the screw structure 3, guide block 4, and movable winding structure 5 on the ceiling keel 1 to realize the unfolding and winding of the stretch ceiling 71 and 72. Combined with materials with different light transmittance and lighting panels 10, it provides deformable dynamic lighting effects. Installation is quick and convenient, effectively improving construction efficiency and reducing costs.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A type of ceiling joist, comprising two parallel ceiling joists (1), characterized in that, Both of the ceiling joists (1) are provided with a screw structure (3) on opposite sides. A guide block (4) is movably installed on the screw structure (3). A movable winding structure (5) is connected between the two guide blocks (4). Each ceiling joist (1) has a first edge strip (61) and a second edge strip (62) at its bottom ends. The movable winding structure (5) is provided with a first winding roller (51) and a second winding roller (52). The first winding roller (51) is wound with a first soft film ceiling (71) for connecting the first edge strip (61), and the second winding roller (52) is wound with a second soft film ceiling (72) for connecting the second edge strip (62).

2. The ceiling keel according to claim 1, characterized in that, The lead screw structure (3) includes a snap-fit ​​component (9) and a snap-fit ​​groove (11) opened on one side of the ceiling keel (1). A snap-fit ​​block (31) is inserted into the snap-fit ​​groove (11). Both ends of the bottom of the ceiling keel (1) are provided with through grooves (12) for connecting the inside of the snap-fit ​​groove (11). Both ends of the bottom of the snap-fit ​​block (31) are provided with slots (32) corresponding to the through grooves (12). The snap-fit ​​component (9) passes through the through groove (12) and is snap-fitted into the slot (32).

3. The ceiling keel according to claim 2, characterized in that, The snap-fit ​​component (9) includes a rotating block (91), a sleeve (92) is provided at the top of the rotating block (91), a spring (93) is sleeved inside the sleeve (92), protrusions (94) are provided on the upper part of both sides of the sleeve (92), a slot one (33) is provided at the bottom of the snap-fit ​​groove (32) relative to the protrusions (94), a slot two (34) is provided in the middle of the snap-fit ​​groove (32) relative to the protrusions (94), and the slot one (33) and the slot two (34) are arranged in an alternating position.

4. The ceiling keel according to claim 2, characterized in that, The lower part of the snap-fit ​​block (31) extends into a sliding groove block (35). The sliding groove block (35) has a lead screw mounting groove (36) on its side. A lead screw guide rail (37) is installed in the lead screw mounting groove (36). A lead screw motor (38) is installed at one end of the sliding groove block (35). The end of the lead screw guide rail (37) is connected to the lead screw motor (38).

5. The ceiling keel according to claim 1, characterized in that, The guide block (4) has a lead screw nut (41) on the upper part facing the sliding groove block (35), and the sliding groove block (35) on the same side has a plug groove (42) at the lower part. The guide block (4) is movably mounted on the lead screw guide rail (37) through the lead screw nut (41). The plug groove (42) has through openings (43) on both sides.

6. The ceiling keel according to claim 1, characterized in that, The movable winding structure (5) includes a hollow roller box (2). Both ends of the roller box (2) are provided with connecting blocks (45). The connecting blocks (45) are provided with threaded grooves (46) on both sides. The connecting blocks (45) are connected to the insertion groove (42) by insertion. The through opening (43) and the threaded groove (46) are fixed by a bolt (44) threaded connection.

7. The ceiling keel according to claim 1, characterized in that, Both take-up roller 1 (51) and take-up roller 2 (52) are mounted in the roller box (2) via shafts. Both ends of take-up roller 1 (51) are coaxially connected to gear 1 (53), and both ends of take-up roller 2 (52) are coaxially connected to gear 2 (54). Both sides inside the roller box (2) are coaxially connected to gear 3 (55), and the lower part of gear 3 (55) is simultaneously meshed with gear 1 (53) and gear 2 (54).

8. The ceiling keel according to claim 1, characterized in that, The roller box (2) has slots (56) on both sides for the extension of the first (71) or the second (72) of the soft film ceiling, and slots (2) on both ends of the top of the roller box (2) for the extension of the upper part of the third (55). The bottom surface of the sliding block (35) is provided with a toothed groove (101), and the upper part of the gear three (55) extends out of the slot two and meshes with the toothed groove (101).

9. The ceiling keel according to claim 4, characterized in that, The ceiling keel (1) and the snap-fit ​​part (9) are both provided with scales. The sliding groove block (35) is equipped with a smoke sensor on the side opposite to the screw mounting groove (36). The first stretch ceiling (71) and the second stretch ceiling (72) are both provided with decorative shapes and patterns.