Car flat roof for easy assembly of roof lights

The design of the connecting mechanism and the snap-on mechanism enables convenient installation and modular replacement of the roof light, solving the problems of complex installation and cumbersome maintenance of the roof light in the existing technology, and improving the appearance and maintenance efficiency of the car roof.

CN224941017UActive Publication Date: 2026-11-06HANG ZHOU BAI KE XING ZHI NENG KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202522517465.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-11-06
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

The existing roof light installation structure of automobiles is complex, affecting the integrity of the appearance and making maintenance and disassembly cumbersome, and modular replacement is not possible.

Method used

The system employs a connecting mechanism and a snap-fit ​​mechanism, enabling convenient installation and removal of the overhead light bracket via a detachable knob and studs, facilitating modular replacement. The snap-fit ​​knob drives the snap-fit ​​slide and snap-fit ​​linkage to securely fix the interior trim panel.

Benefits of technology

It improves the appearance integrity and maintenance convenience of the car's flat roof, simplifies the process of removing and replacing the roof light, and enhances maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224941017U_ABST
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Abstract

This utility model discloses a car flat roof with an easy-to-assemble dome light, relating to the field of car flat roof technology. The utility model includes: a car roof frame, an interior panel mounted on one side of the roof frame, a mounting groove on the surface of the interior panel, a dome light bracket mounted inside the mounting groove, and a connecting mechanism mounted on one side of the dome light bracket; wherein, the connecting mechanism includes a module seat slidably engaged with one side of the dome light bracket and a disassembly / removal knob rotatably engaged with the other side of the dome light bracket. This utility model uses a connecting mechanism to achieve the assembly and fixation of the dome light bracket. After installation, only the disassembly / removal knob is exposed on one side of the dome light bracket, ensuring that the car flat roof structure maintains its overall structure and improving the integrity of the appearance; during disassembly, the fixed relationship between the dome light bracket and the interior panel is released by rotating the disassembly / removal knob with a tool, allowing the dome light bracket to be removed, making disassembly more convenient. Furthermore, the connecting mechanism can be modularly disassembled and replaced using the module seat, eliminating the need for complete replacement, making it even more convenient.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive flat roofs, specifically, it relates to an automotive flat roof that facilitates the assembly of roof lights. Background Technology

[0002] A flat roof is a type of vehicle roof design, typically referring to vehicles with a low, flat roof, commonly found in commercial vehicles. Interior ceiling lights, also known as reading lights, are installed on the flat roof, usually above the driver's seat and in the center of the rear seats, for convenient reading inside the vehicle.

[0003] Chinese patent CN219544625U discloses a car flat roof that is easy to assemble with a roof light. It includes a car flat roof body, an installation groove on the outside of the car flat roof body, and two sliding mechanisms inside the installation groove. Each sliding mechanism includes a clamping plate, a connecting plate, a sliding groove, a slider, a fixing block, and a fixing groove.

[0004] In existing automotive flat-roof structures, the roof lights generally adopt a snap-on installation scheme. The assembly process requires the use of auxiliary components such as clamps and fixing slots to achieve positioning and fixation. The mounting slots are directly exposed to the external environment, which damages the appearance of the vehicle roof and the overall visual harmony. The installation structure cannot achieve modular and independent replacement, resulting in a cumbersome maintenance and disassembly process and low maintenance efficiency. In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a car flat roof that is easy to assemble with a roof light, thus solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A car flat roof that facilitates the assembly of roof lights includes: The car roof rack has an interior panel installed on one side. The surface of the interior panel has a mounting groove, and a roof light bracket is installed inside the mounting groove. A connecting mechanism is installed on one side of the roof light bracket. The connecting mechanism includes a module seat that slides on one side of the roof light frame and a disassembly / removal knob that rotates on the other side of the roof light frame. A disassembly / removal stud is rotatably fitted on one side of the knob, engaging with the module seat. The stud consists of two rods, one smooth and the other threaded. A sliding top plate is threaded onto the outer side of the threaded rod. A push frame is fixedly mounted on one side of the sliding top plate, and a push block slides on one side of the push frame. An installation rod is fixedly mounted on one side of the push block, engaging with the car roof frame. Both sides of the push block have reset sliding plates, and each reset sliding plate has a reset spring on one side, engaging with the module seat.

[0007] Optionally, one end of the push block is configured as an inclined surface structure, and the push block slides with the push frame through the inclined surface structure.

[0008] Optionally, the length of the smooth rod is the same as the thickness of the module base.

[0009] Optionally, the ceiling light body is installed on the inner side of the ceiling light frame, a positioning protrusion is provided on one side of the ceiling light frame, and a positioning slot is provided on the inner side of the mounting groove, with the positioning protrusion cooperating with the positioning slot.

[0010] Optionally, a car body is provided on one side of the car roof rack, an insulation board is installed on the inside of the car roof rack, and a sound insulation board is provided on the other side of the car roof rack. The car body is attached to one side of the insulation board, and the interior panel is attached to one side of the sound insulation board.

[0011] Optionally, the outer side of the interior panel is provided with a buckle mechanism, and the surface of the car roof rack is provided with buckle holes corresponding to the buckle mechanism.

[0012] Optionally, the snap-fit ​​mechanism includes a snap-fit ​​knob rotatably fitted on one side of the interior trim panel and a fixing seat fixed on the other side of the interior trim panel. A snap-fit ​​stud is fixedly installed on one side of the snap-fit ​​knob, and a snap-fit ​​slide is threaded onto the outer side of the snap-fit ​​stud. The snap-fit ​​slide is slidably fitted with the fixing seat, and snap-fit ​​connecting rods are rotatably fitted at both ends of the snap-fit ​​slide. One end of each of the two snap-fit ​​connecting rods is rotatably fitted with a snap-fit ​​body.

[0013] Optionally, the two snap-fit ​​bodies can be rotatably fitted onto a mounting base, which is threaded into the fixing base.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. The roof light bracket is assembled and fixed using a connecting mechanism. After installation, only the disassembly knob is exposed on one side of the roof light bracket, ensuring that the flat roof structure of the car maintains its overall structure and improving the integrity of the appearance. During disassembly, the disassembly knob is rotated with a tool, which drives the disassembly stud linked to it to rotate synchronously. During the rotation of the disassembly stud, the pusher bracket is driven to descend axially and disengage from the constraint area of ​​the pusher block. Then, the return spring releases the elastic potential energy, pushing the installation rod back to the initial position. At this time, the fixed relationship between the roof light bracket and the interior panel is released, and the roof light bracket can be removed. Disassembly is more convenient, and the connecting mechanism can be modularly disassembled and replaced through the modular base, which is more convenient without the need for overall replacement. 2. The interior trim panel is assembled and fixed using a snap-fit ​​mechanism. Simply rotate the snap-fit ​​knob to drive the snap-fit ​​stud to rotate, which in turn moves the snap-fit ​​slide along the axial direction. The snap-fit ​​slide is linked to the snap-fit ​​body through the snap-fit ​​connecting rod, thereby driving the snap-fit ​​body to open and close. This makes the snap-fit ​​connection between the snap-fit ​​body and the car roof rack more stable, and the snap-fit ​​body can be retracted during disassembly, reducing the problem of easy breakage during disassembly and assembly of traditional snap-fit ​​connections. In addition, the snap-fit ​​body forms a threaded connection with the snap-fit ​​slide through a screw-on method. When the snap-fit ​​body is damaged, it can be replaced modularly without disassembling the entire snap-fit ​​mechanism, improving maintenance convenience.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of a flat-top structure; Figure 2 Schematic diagram of the ceiling light fixture installation structure; Figure 3 This is a schematic diagram of the connecting mechanism. Figure 4 This is a schematic diagram of the stud structure for disassembly and assembly; Figure 5 This is a schematic diagram of the latching mechanism.

[0017] The attached diagram lists the components represented by each number as follows: 1. Car roof rack; 11. Car body shell; 12. Interior panel; 13. Insulation board; 14. Sound insulation board; 15. Dome light bracket; 16. Dome light body; 17. Mounting slot; 18. Positioning protrusion; 19. Positioning slot; 2. Connecting mechanism; 21. Removal knob; 22. Removal stud; 23. Sliding roof panel; 24. Push frame; 25. Push block; 26. Mounting rod; 27. Reset slide plate; 28. Reset spring; 29. ​​Module seat; 3. Buckling mechanism; 31. Buckling knob; 32. Buckling stud; 33. Buckling slide; 34. Fixing seat; 35. Buckling connecting rod; 36. Buckling body; 37. Mounting seat.

[0018] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Please see Figure 1-5 As shown, this embodiment provides a car flat roof that facilitates the assembly of a roof light, comprising: The car roof rack 1 has an interior panel 12 installed on one side. The surface of the interior panel 12 has a mounting groove 17. A roof light bracket 15 is installed inside the mounting groove 17. A connecting mechanism 2 is installed on one side of the roof light bracket 15. The connecting mechanism 2 includes a module seat 29 that slides on one side of the roof light frame 15 and a disassembly / removal knob 21 that rotates on the other side of the roof light frame 15. A disassembly / removal stud 22 is rotatably fitted on one side of the disassembly / removal knob 21. The disassembly / removal stud 22 cooperates with the module seat 29. The disassembly / removal stud 22 is configured as two rods, one of which is a smooth rod and the other is a threaded rod. A sliding top plate 23 is threadedly fitted on the outer side of the threaded rod. A pusher frame 24 is fixedly installed on one side of the sliding top plate 23. A pusher block 25 is slidably fitted on one side of the pusher frame 24. An installation rod 26 is fixedly installed on one side of the pusher block 25. The installation rod 26 cooperates with the car roof frame 1. A reset slide plate 27 is provided on both sides of the pusher block 25. A reset spring 28 is provided on one side of each reset slide plate 27. The reset spring 28 cooperates with the module seat 29.

[0021] Working principle: During assembly, the roof light bracket 15 is first snapped into the mounting slot 17, with the module seat 29 pressed against the inner side of the car roof frame 1 to reduce the possibility of the module seat 29 contacting the threaded rod section on the disassembly stud 22. Then, the disassembly knob 21 is rotated using a tool to drive the disassembly stud 22 to rotate synchronously. Utilizing the thread transmission principle, the disassembly stud 22 drives the sliding top plate 23 to move axially. The sliding top plate 23 further drives the push frame 24 to slide. The push frame 24 drives the push block 25 to move through the thrust. Finally, the push block 25 drives the mounting rod 26 to be inserted into the inner side of the car roof frame 1 to achieve limiting and fixing. At the same time, the push block 25 pushes the reset slide plate 27 to compress the reset spring 28. After the sliding top plate 23 is removed, the threaded rod and the threaded limit of the module seat 29 reduce the possibility of slippage, thereby ensuring that the roof light bracket 15 remains stable after installation. During disassembly, simply rotate the disassembly knob 21 in the opposite direction to move the sliding top plate 23 in the opposite direction, causing the pusher 24 to disengage from the pusher block 25. At this time, the return spring 28 releases its elastic potential energy, pushing the return slide plate 27 and the pusher block 25 to reset, thereby causing the mounting rod 26 to return to its initial position. The fixed relationship between the top light bracket 15 and the car roof bracket 1 is released, and it can be removed. When the connecting mechanism 2 is damaged and needs repair, remove the top light bracket 15, manually lift the module seat 29 upwards, and move it from the smooth rod section of the disassembly stud 22 to the threaded rod section; through the threaded engagement, rotate the disassembly knob 21 to drive the module seat 29 to move synchronously with the sliding top plate 23 until the two are completely disassembled from the disassembly stud 22; after replacing the new module seat 29, assemble it onto the disassembly stud 22, rotate the disassembly knob 21 to drive the disassembly stud 22 to rotate, so that the disassembly stud 22 is screwed and fixed with the module seat 29 and the sliding top plate 23; finally, push the module seat 29 to move to the smooth rod section of the disassembly stud 22 and lock it into the top light bracket 15 to complete the repair assembly.

[0022] like Figure 1-4 As shown, one end of the push block 25 in this embodiment is configured with an inclined surface structure, and the push block 25 slides with the push frame 24 through the inclined surface structure; the length of the smooth rod on the disassembly stud 22 in this embodiment is the same as the thickness of the module seat 29. The inclined surface structure of the push block 25 can reduce the contact resistance between the push frame 24 and the push block 25 during the movement, so that the push frame 24 can smoothly drive the push block 25 to move; the disassembly stud 22 is designed as a segmented structure of threaded rod and smooth rod. When the module seat 29 moves to the smooth rod segment through the threaded engagement of the threaded rod, the disassembly stud 22 no longer transmits force to the module seat 29 through the thread when it rotates, thereby avoiding the module seat 29 from rotating synchronously with the disassembly stud 22, thus ensuring the positional stability of the module seat 29 in the engaged state.

[0023] like Figure 1 and Figure 2 As shown, in this embodiment, the inner side of the roof light bracket 15 is equipped with the roof light body 16, and a positioning protrusion 18 is provided on one side of the roof light bracket 15. A positioning slot 19 is provided on the inner side of the mounting groove 17, and the positioning protrusion 18 cooperates with the positioning slot 19. In this embodiment, a car body 11 is provided on one side of the car roof rack 1, an insulation board 13 is installed on the inner side of the car roof rack 1, and a sound insulation board 14 is provided on the other side of the car roof rack 1. The car body 11 is attached to one side of the insulation board 13, and the interior panel 12 is attached to one side of the sound insulation board 14. When the roof light bracket 15 is assembled, its positioning protrusion 18 and the positioning slot 19 on the inner side of the mounting groove 17 form a fitting fit, which can quickly realize the positioning of the roof light bracket 15 and the mounting groove 17, reducing the assembly difficulty of embedding the roof light bracket 15 into the mounting groove 17; in addition, by integrating the insulation board 13 and the sound insulation board 14 into the flat roof structure, the thermal insulation performance and sound insulation and noise reduction effect of the car flat roof can be improved, optimizing the in-vehicle driving experience.

[0024] like Figure 1-5As shown, the outer side of the interior panel 12 in this embodiment is provided with a buckling mechanism 3, and the surface of the car roof rack 1 is provided with buckling holes corresponding to the buckling mechanism 3. The buckling mechanism 3 in this embodiment includes a buckling knob 31 rotatably engaged with one side of the interior panel 12 and a fixing seat 34 fixed to the other side of the interior panel 12. A buckling stud 32 is fixedly installed on one side of the buckling knob 31. A buckling slide 33 is threadedly engaged with the outer side of the buckling stud 32. The buckling slide 33 is slidably engaged with the fixing seat 34. Both ends of the buckling slide 33 are rotatably engaged with buckling connecting rods 35. One end of each of the two buckling connecting rods 35 is rotatably engaged with a buckling body 36. The two buckling bodies 36 in this embodiment are rotatably engaged with a mounting seat 37. The mounting seat 37 is threadedly engaged with the fixing seat 34.

[0025] When assembling the interior panel 12, first insert the fixing seat 34 into the preset clip hole of the car roof rack 1, then rotate the clip knob 31 to drive the clip stud 32 to rotate; using thread transmission, the clip stud 32 drives the clip slide 33 to move axially, and the clip slide 33 drives the clip connecting rod 35 to move in conjunction through the thrust, thereby pushing the clip body 36 to rotate and engage with the inside of the clip hole, so as to achieve a stable fixation of the interior panel 12; During disassembly, rotating the buckle knob 31 in the opposite direction will retract the buckle body 36, releasing the engagement constraint with the buckle hole, and then the interior panel 12 can be removed directly; this operation can reduce the abnormal stress on the buckle body 36 and reduce its risk of damage. When the buckle body 36 is damaged and needs to be replaced, simply unscrew the connection structure between the mounting base 37 and the buckle slide 33 to remove the buckle connecting rod 35 and the buckle body 36 as a whole. After replacing the new part, screw the new mounting base 37 and the buckle slide 33 onto the buckle stud 32 and the fixing base 34 to complete the assembly. The entire disassembly and replacement process is convenient and does not require disassembling the buckle mechanism 3 as a whole, thus improving maintenance efficiency.

[0026] It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0027] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A car flat roof that facilitates the assembly of a roof light, characterized in that, include: The car roof rack (1) has an interior panel (12) installed on one side. The surface of the interior panel (12) has a mounting groove (17). A roof light bracket (15) is installed inside the mounting groove (17). A connecting mechanism (2) is installed on one side of the roof light bracket (15). The connecting mechanism (2) includes a module seat (29) that slides on one side of the top light frame (15) and a disassembly knob (21) that rotates on the other side of the top light frame (15). A disassembly stud (22) rotates on one side of the disassembly knob (21). The disassembly stud (22) engages with the module seat (29). The disassembly stud (22) is configured as two rods, one of which is a smooth rod and the other is a threaded rod. A sliding top plate (23) is threaded on the outer side of the threaded rod. A pusher frame (24) is fixedly installed on one side of the sliding top plate (23). A pusher block (25) is slidably fitted on one side of the pusher frame (24). An installation rod (26) is fixedly installed on one side of the pusher block (25). The installation rod (26) cooperates with the car roof frame (1). A reset slide plate (27) is provided on both sides of the pusher block (25). A reset spring (28) is provided on one side of each of the two reset slide plates (27). The reset spring (28) cooperates with the module seat (29).

2. The car flat roof for easy assembly of a roof light according to claim 1, characterized in that, One end of the push block (25) is set as an inclined surface structure, and the push block (25) slides with the push frame (24) through the inclined surface structure.

3. A car flat roof for easy assembly of a roof light according to claim 1, characterized in that, The length of the smooth rod is the same as the thickness of the module base (29).

4. A car flat roof for easy assembly of a roof light according to claim 1, characterized in that, The ceiling light body (16) is installed on the inner side of the ceiling light frame (15). A positioning protrusion (18) is provided on one side of the ceiling light frame (15). A positioning slot (19) is provided on the inner side of the mounting groove (17). The positioning protrusion (18) and the positioning slot (19) cooperate with each other.

5. A car flat roof for easy assembly of a roof light according to claim 1, characterized in that, A car body (11) is provided on one side of the car roof rack (1), an insulation board (13) is installed on the inside of the car roof rack (1), and a sound insulation board (14) is provided on the other side of the car roof rack (1). The car body (11) is attached to one side of the insulation board (13), and the interior panel (12) is attached to one side of the sound insulation board (14).

6. A car flat roof for easy assembly of a roof light according to claim 1, characterized in that, The outer side of the interior panel (12) is provided with a buckle mechanism (3), and the surface of the car roof rack (1) is provided with a buckle hole corresponding to the buckle mechanism (3).

7. A car flat roof for easy assembly of a dome light according to claim 6, characterized in that, The buckling mechanism (3) includes a buckling knob (31) rotatably fitted on one side of the interior panel (12) and a fixing seat (34) fixed on the other side of the interior panel (12). A buckling stud (32) is fixedly installed on one side of the buckling knob (31). A buckling slide (33) is threaded on the outside of the buckling stud (32). The buckling slide (33) slides with the fixing seat (34). Both ends of the buckling slide (33) are rotatably fitted with buckling connecting rods (35). One end of each of the two buckling connecting rods (35) is rotatably fitted with a buckling body (36).

8. A car flat roof for easy assembly of a dome light according to claim 7, characterized in that, Two snap-fit ​​bodies (36) are rotatably fitted on a mounting base (37), and the mounting base (37) is threadedly fitted with the fixing base (34).

Citation Information

Patent Citations

  • Automobile flat roof convenient to assemble ceiling lamp

    CN219544625U