Car roof trunk

By replacing traditional pins or rivets with screws and lock nuts to secure the roof box, and combining them with flexible sealing rings, the problems of exposed pin heads damaging the box and lock replacement damage are solved, achieving surface protection and improved sealing of the box.

CN121625965APending Publication Date: 2026-03-10JIANGXI SENMU TECH CO LTD
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Patent Information

Application Number
CN202411138640.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing method of fixing roof boxes with pins or rivets results in exposed pins or rivet heads that damage the smoothness of the outer surface of the box. Furthermore, the box is easily damaged when the lock is replaced, and the existing support components are easily damaged and need to be replaced frequently.

Method used

The connection between the box body and the box cover is secured with screws, combined with anti-loosening nuts and flexible sealing rings, replacing traditional pins or rivets. The screw heads are hidden on the outer surface of the box body, and the screws can be unscrewed with a screwdriver for replacement. The anti-loosening nuts increase the firmness, and the flexible sealing rings improve the sealing and cushioning effect.

Benefits of technology

It avoids the hassle of exposed pins or rivets, simplifies the lock replacement process, protects the integrity of the outer surface of the box, enhances the sealing and dustproof, windproof and rainproof effects, and improves ease of use and durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a car roof trunk which comprises a trunk cover, a trunk body and a hinge piece, the hinge piece is used for enabling the trunk cover and the trunk body to be matched in a hinged mode, and the hinge piece is fixedly connected with the trunk cover and the trunk body through screws. The supporting piece is used for supporting the opening state of the box cover relative to the box body, and the supporting piece is fixedly connected with the box cover and the box body through screws; and the locking piece is used for locking and opening the box cover and the box body, and the locking piece is fixedly connected with the box cover and the box body through screws. According to the car roof trunk structure, the connecting pieces between the trunk body and the trunk cover are fixed through the screws, a current common plug pin or pop rivet mode is replaced, a pin head or a pop rivet head of the car roof trunk structure cannot be exposed on the outer surface of the trunk body, and extra trouble does not need to be brought to the exposed pin head or the pop rivet head and a plastic cover. When the lockset and the supporting piece need to be replaced, the mode of screwing out the screws through a screwdriver is simple and easy to implement, the outer surface of the luggage case cannot be damaged, and the lockset cannot be damaged.
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Description

Technical Field

[0001] This invention relates to the field of luggage, and more specifically to a roof luggage box. Background Technology

[0002] Currently, most roof boxes are secured to the box body and lid with pins or rivets. However, since the pins or rivets protrude from the outer surface of the box, this disrupts the flatness of the outer surface and causes inconvenience. Some roof boxes have plastic caps for the exposed pins or rivets, but the varying hole sizes left by the rivets result in inconsistent tightness when fitting the plastic caps, causing the looser caps to fall off. Furthermore, the plastic caps are prone to aging under exposed conditions. More importantly, when the roof box lock is damaged or the key is lost, replacing the lock requires removing the pins or rivets. Currently, removing pins, rivets, and rivets usually involves drilling, which can damage the roof box surface and the lock itself. Alternatively, since the support components that open automatically using springs or pneumatic mechanisms are prone to damage with frequent use and need replacement, removing the pins, rivets, and rivets during replacement can easily damage the roof box.

[0003] In view of the above, this application is hereby submitted. Summary of the Invention

[0004] The present invention provides a roof box to solve at least one of the above-mentioned technical problems.

[0005] A roof box includes a lid and a body, and further includes: a hinge for hinged engagement of the lid and the body, wherein the hinge is fixedly connected to the lid and the body by screws; a support for supporting the lid in an open state relative to the body, wherein the support is fixedly connected to the lid and the body by screws; and a locking fastener for locking and opening the lid and the body, wherein the locking fastener is fixedly connected to the lid and the body by screws.

[0006] Furthermore, the screw head is located on the outer surface of the cover and the box body, and the inside of the cover and the box body is provided with a nut that matches the screw.

[0007] Preferably, the nut is a lock nut or a self-locking nut.

[0008] Preferably, the cover and the body of the box are provided with stepped through holes corresponding to the screws, so that the screw head is located in the stepped through holes.

[0009] The screw head is round, the stepped through hole is adapted to the screw head, and after the screw is installed in the stepped through hole, the screw head is flush with the outer surface of the box cover or box body.

[0010] Preferably, the screw head has an internal hexagonal structure, an internal slotted head structure, or an internal cross-shaped head structure.

[0011] Preferably, the locking device includes at least two latches disposed on the lid, at least two lock seats disposed on the body, and an unlocking unit;

[0012] The latch is provided with a hinged locking hole, and the lock base is provided with a hinged locking bar that can move inside and outside the hinged locking hole. The unlocking unit is used to control the movement of the hinged locking bar on the lock base relative to the hinged locking hole, so that the latch can be disengaged from and locked relative to the lock base.

[0013] Preferably, the unlocking unit includes a lock head with a lock hole, a fixed plate fixedly mounted on the box body, and an unlocking bar slidably fitted on the fixed plate; the lock head is provided with a lock tongue that allows the unlocking bar to slide along the fixed plate, and the hinged lock bar slides with the unlocking bar to disengage and lock the lock buckle relative to the lock seat.

[0014] Preferably, the locking bar of the lock seat can rotate within the hinged lock hole of the latch, the hinge is hinged by the latch and the lock seat, and includes another unlocking unit for controlling the hinge.

[0015] Preferably, it also includes a flexible sealing ring, which is disposed around the lid or the body of the roof box and is in contact with both the lid and the body of the roof box when the roof box is closed.

[0016] Preferably, the flexible sealing ring has a hollow structure, and the compressible elastic height of the flexible sealing ring is 5-15mm.

[0017] The roof box of this invention uses screws to secure the connection between the box body and the lid, replacing the currently commonly used pins or rivets. This eliminates the need for exposed pin or rivet heads on the outer surface of the box, avoiding the inconvenience of adding plastic caps to exposed pins or rivet heads. Furthermore, when replacing the lock or support components, simply unscrewing the screws with a screwdriver is simple and easy, without damaging the lock head or the outer surface of the box. Moreover, the lid and box body are equipped with anti-loosening nuts that match the screws, enhancing the screw's secure fastening. Removal only requires unscrewing the screw head with a screwdriver and tightening the anti-loosening nut with a wrench, without damaging the lock head structure or other connecting components.

[0018] Furthermore, the roof box of the present invention, through the setting of a hollow flexible sealing ring, enhances the sealing between the box body and the lid, and plays a role in dustproofing, windproofing, rainproofing, as well as buffering and noise reduction when the box lid is closed. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of the roof luggage compartment according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 2 A schematic diagram of the second-view structure;

[0021] Figure 3 yes Figure 1 A first-view structural diagram of the locking fastener;

[0022] Figure 4 yes Figure 3 A schematic diagram of the second-view structure;

[0023] Figure 5 yes Figure 3 Partial structural diagram;

[0024] Figure 6 yes Figure 1 A schematic diagram of the open state structure;

[0025] Figure 7 yes Figure 6 A structural schematic diagram of the support component;

[0026] Figure 8 yes Figure 1 A schematic diagram of the exploded structure;

[0027] Figure 9 yes Figure 8 A schematic diagram of the second-view structure;

[0028] Figure 10 yes Figure 8 A schematic diagram of the sealing ring structure.

[0029] Figure label:

[0030] 1. Box lid; 11. Circular mounting platform; 12. Bottom side wall; 2. Box body; 21. Top side wall; 3. Hinge; 4. Support; 41. Upper support rod; 42. Lower support rod; 43. Fixing base; 5. Locking device; 51. Locking buckle; 52. Lock seat; 521. Hinge lock bar; 53. Lock head; 54. Fixing plate; 55. Unlocking square rod; 56. Lock tongue; 6. Screw; 61. Anti-loosening nut; 7. Flexible sealing ring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Please refer to Figures 1 to 7 A roof box, comprising a lid 1 and a body 2, and including:

[0035] The hinge 3 is located on one side of the roof luggage compartment and is used to hinge the lid 1 and the body 2 together. The hinge 3 is fixedly connected to the lid 1 and the body 2 by screws 6.

[0036] Support member 4, at least two support members 4, are located at both ends of the roof luggage compartment, respectively, for supporting the open state of the compartment cover 1 relative to the compartment body 2, and the support member 4 is fixedly connected to the compartment cover 1 and the compartment body 2 by screws 6.

[0037] The locking fastener 5 is located on the other side of the roof box and is used to lock and open the box cover 1 and the box body 2. The locking fastener 5 is fixedly connected to the box cover 1 and the box body 2 by screws 6.

[0038] Screws 6 are used to secure the connection between the box body 2 and the cover 1, replacing the commonly used pins or rivets. This ensures that the pins or rivet heads are not exposed on the outer surface of the box body 2, eliminating the need for plastic caps on exposed pins or rivet heads and avoiding the extra hassle of adding plastic covers. Furthermore, when the lock cylinder 53 needs to be replaced, simply unscrewing screws 6 with a screwdriver is a simple and easy process that will not damage the lock cylinder 53.

[0039] In this embodiment, the screw head of the screw 6 is located on the outer surface of the cover 1 and the box body 2. The inside of the cover 1 and the box body 2 is provided with a nut that matches the screw 6. The nut increases the tightening performance of the screw and facilitates disassembly.

[0040] There are several ways to further enhance the tightness of nuts, such as using a nut and washer combination; having internally threaded holes on hinges, supports, or locking devices for screws to pass through and lock in place; or stacking two nuts for locking and applying adhesive to the threads. Preferably, self-locking nuts are used. The principle of a self-locking nut is to machine a special structure into the threads to increase friction, thus making the nut less prone to loosening. Common self-locking nuts include washer-type self-locking nuts, end-face flat-type self-locking nuts, and internally locking flat-type self-locking nuts.

[0041] In this embodiment, the nut is a lock nut 61, which has advantages such as superior vibration resistance, wear resistance, strong shear resistance, and good reusability. The lock nut 61 strengthens the fixing of the screw 6. When removing it, only a screwdriver is needed to tighten the screw head, and a wrench is needed to tighten the lock nut 61. It will not damage the lock head 53 structure of the lock, nor will it damage other connecting parts.

[0042] In order to make the outer surface of the suitcase smoother, in a preferred embodiment, the lid 1 and the body 2 are provided with stepped through holes corresponding to the screw 6. The stepped through holes are large-diameter through holes near the outer surface of the lid 1 or the body 2, and small-diameter through holes away from it. The main body of the screw 6 is engaged with the small-diameter through hole, and the screw head of the screw 6 is located in the large-diameter through hole of the stepped through hole.

[0043] The screw 6 has a round head, and the stepped through hole is adapted to the screw head, meaning the large-diameter through hole of the stepped through hole basically matches the diameter of the screw head with very little gap. Furthermore, after the screw 6 is installed in the stepped through hole, the screw head of the screw 6 is flush with the outer surface of the cover 1 or the body 2. The screw 6 has an internal hexagonal structure or other concave structure.

[0044] Preferably, the screw head of the screw 6 has an internal hexagonal structure, an internal slotted structure, an internal cross-shaped structure, an internal star-shaped structure, an internal cross-shaped structure, or an internal anti-theft groove structure.

[0045] When the suitcase does not have stepped through holes, the top of the screw head to the outer wall is a smooth, curved structure.

[0046] Please refer to Figure 2 In this embodiment, the screw head of screw 6 has an internal hexagonal structure, and the top of the screw head to the outer side wall has an arc-shaped smooth structure.

[0047] The locking device 5 includes at least two latches 51 disposed on the cover 1, at least two lock seats 52 disposed on the body 2, and an unlocking unit.

[0048] Please refer to Figures 3 to 5 In this embodiment, the locking device 5 includes three latches 51 and three corresponding lock seats 52, as well as an unlocking unit. Each latch 51 has a hinged locking hole, and each lock seat 52 has a hinged locking bar 521 that can move inside and outside the hinged locking hole. The unlocking unit controls the movement of the hinged locking bar 521 on the lock seat 52 relative to the hinged locking hole. When the hinged locking bar 521 moves outside the hinged locking hole, the latches 51 are disengaged from the lock seat 52, allowing the box body 2 and the box cover 1 to be opened. When the hinged locking bar 521 moves inside the hinged locking hole, the latches 51 are locked from the lock seat 52.

[0049] Please refer to Figure 4 The unlocking unit includes a lock head 53 with a lock hole, a fixing plate 54 fixedly mounted on the housing 2, and an unlocking square rod 55 slidably fitted on the fixing plate 54; the lock head 53 is provided with a lock tongue 56 that allows the unlocking square rod 55 to slide along the fixing plate 54, and the hinged lock bar 521 slides with the unlocking square rod 55 to disengage and lock the lock buckle 51 relative to the lock seat 52.

[0050] In other embodiments, the lock seat 52 is directly connected to the housing 2 by screws 6 and anti-loosening nuts 61. In this embodiment, the fixing plate 54 is fixed to the housing 2 by screws 6 and anti-loosening nuts 61, and the fixing plate 54 is fixed by being inserted into the mounting hole of the lock seat 52.

[0051] The support member 4 includes an upper support rod 41, a lower support rod 42, and two fixed seats 43. The two fixed seats 43 are fixed to the box body 2 and the box cover 1 respectively by screws 6 and anti-loosening nuts 61. One end of the upper support rod 41 and the lower support rod 42 are hinged together, and the other end is hinged to the fixed seat 43 respectively.

[0052] In this embodiment, the locking bar of the lock seat 52 can rotate within the hinged locking hole of the latch 51. The hinge member 3 is hinged through the latch 51 and the lock seat 52, and includes another unlocking unit for controlling the hinge member 3. That is, in this embodiment, the roof box can be unlocked from both sides, and either side can achieve the function of hinged connection between the lid 1 and the body 2. The structure that can be unlocked from both sides makes the roof box more convenient to use.

[0053] Please refer to Figures 1 to 10 The roof box also includes a flexible sealing ring 7, which surrounds the lid 1 or the body 2 and contacts both the lid 1 and the body 2 when the roof box is closed. The closed state refers to the state where the roof box is closed and the locking fasteners secure the lid and the body.

[0054] A flexible sealing ring 7 is used to surround and cover the box body 1 or the lid 2. When the roof box is closed, the flexible sealing ring 7 simultaneously contacts both the box body 1 and the lid 2, sealing all gaps between the box body 2 and the lid 1 that connect to the inside and outside of the box. This gives the roof box excellent dust and moisture protection. The use of flexible material not only enhances the sealing performance but also provides cushioning and noise reduction when the box is closed.

[0055] The flexible sealing ring 7 has a hollow structure, which means that even if the roof box 2 and the lid 1 have production errors or deformation due to use, there is enough compressible space, so there is no gap between the roof box 2 and the lid 1 when they are closed, which greatly improves the dustproof and moisture-proof effect of the roof box.

[0056] Preferably, the compressible elastic height of the flexible sealing ring is 5–15 mm. The height refers to the thickness of the flexible sealing ring 7 in the height direction when it is installed in the roof trunk.

[0057] Alternatively, the initial height of the flexible sealing ring may be 6–16 mm, and the wall thickness may be 0.5–2 mm. This corresponds to a compression height suitable for roof boxes.

[0058] The flexible sealing ring 7 can be made of rubber or flexible plastic. Rubber materials include natural rubber, synthetic silicone, EPDM, TPE, etc.; flexible plastic materials can be ABS plastic, PVC, etc. In this embodiment, the flexible sealing ring 7 is a hollow rubber sealing ring. Rubber sealing rings have good elasticity and excellent resistance to oil, acids, alkalis, and high temperatures, making them suitable for sealing requirements in various environments. Preferably, the height of the rubber sealing ring is 9–11 mm, and the wall thickness is 0.9–1.2 mm.

[0059] Please refer to Figure 8 The inner wall of the lid 1 near the top end face of the box body 2 is provided with an annular mounting platform 11. The flexible sealing ring 7 is arranged around the mounting platform 11 so that when the roof luggage box is in the closed state, the mounting platform 11 and the top end face of the box body 2 simultaneously squeeze the flexible sealing ring 7 to obtain a good sealing effect.

[0060] In this embodiment, the top end face of the housing 2 is an annular plane that fits the flexible sealing ring 7. The surface of the annular mounting platform 11 is an annular plane, and the flexible sealing ring 7 is a D-shaped hollow rubber sealing ring. The plane of the flexible sealing ring 7 is bonded and fixed to the annular mounting platform 11. This structure facilitates installation and provides excellent sealing performance. The D-shaped hollow structure saves materials, provides better elasticity, and increases the elastic space of the sealing ring. When the housing 2 and the lid 1 are closed, the buffer space is larger, ensuring that the housing 2 and the lid 1 are not deformed by impact.

[0061] In other embodiments, the flexible sealing ring 7 is a hollow rubber sealing ring with a flat upper surface, and the upper surface of the flexible sealing ring is bonded and fixed to the annular mounting platform. There are various structures that achieve a flat upper surface for the flexible sealing ring, including D-shaped spatial structures, square hollow structures, trapezoidal hollow structures, or triangular hollow structures, etc. All of these can save materials and increase the elastic space of the sealing ring.

[0062] In other preferred embodiments, the surface of the annular mounting platform 11 is annular and planar, the flexible sealing ring 7 is a square hollow structure, a trapezoidal hollow structure or a triangular hollow structure, and the material of the flexible sealing ring 7 is rubber or polyvinyl chloride.

[0063] Please refer to Figure 2 , Figure 6 , Figure 8 and Figure 9 In this embodiment, the side wall of the lid 1 at the lower part of the annular mounting platform 11 is nested with the top side wall 21 of the body 2, so that when the roof luggage compartment is closed, the bottom side wall 12 of the lid 1 covers the outside of the top side wall 21 of the body 2. Due to the bottom side wall 12, the sealing ring is not visible when the roof luggage compartment is closed, and it is also concealed when the lid is open, thus not affecting the aesthetics or the ability to retrieve items from the compartment.

[0064] In other preferred embodiments, the annular mounting platform 11 is an annular groove adapted to the flexible sealing ring 7, and the flexible sealing ring 7 is interference-fitted and fixed on the annular mounting platform 11.

[0065] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A roof luggage compartment comprising a lid and a box, characterized in that Also comprising: a hinge for hingedly connecting the box cover and the box body, and the hinge is fixedly connected with the box cover and the box body by screws; a support for supporting the opening state of the box cover relative to the box body, and the support is fixedly connected with the box cover and the box body by screws; a locking member for locking and opening the box cover and the box body, and the locking member is fixedly connected with the box cover and the box body by screws.

2. The roof luggage compartment according to claim 1, characterized in that The screw head of the screw is located on the outer surface of the box cover and the box body, and the interior of the box cover and the box body is provided with a nut matched with the screw.

3. The roof luggage compartment according to claim 2, characterized in that The nut is a lock nut or a self-locking nut.

4. The roof luggage compartment according to claim 1, characterized in that The box cover and the box body are provided with a stepped through hole corresponding to the screw, so that the screw head of the screw is located in the stepped through hole; the screw head of the screw is circular, the stepped through hole is matched with the screw head, and after the screw is installed in the stepped through hole, the screw head of the screw is flush with the outer surface of the box cover or the box body.

5. Roof luggage compartment according to claim 1 or 4, characterized in that, The screw head of the screw is an internal hexagonal structure, an internal one-bar structure, an internal mill-shaped structure, an internal cross-shaped structure or an internal anti-theft groove structure.

6. The roof luggage compartment according to claim 1, characterized in that The locking member includes at least two lock buckles provided on the box cover, at least two lock seats provided on the box body, and an unlocking unit; The lock buckle is provided with a hinged lock hole, the lock seat is provided with a hinged lock bar which can move in and out of the hinged lock hole, and the unlocking unit is used to control the movement of the hinged lock bar on the lock seat relative to the hinged lock hole, so that the lock buckle is separated from and locked with the lock seat.

7. The roof luggage compartment according to claim 6, characterized in that The unlocking unit includes a lock head provided with a lock hole, a fixed plate fixedly provided on the box body, and an unlocking square bar slidingly matched with the fixed plate; the lock head is provided with a lock tongue which can make the unlocking square bar slide along the fixed plate, and the hinged lock bar slides with the unlocking square bar to separate and lock the lock buckle relative to the lock seat.

8. The roof luggage compartment according to claim 6, characterized in that The lock bar of the lock seat can rotate in the hinged lock hole of the lock buckle, the hinge is hingedly connected by the lock buckle and the lock seat, and another unlocking unit is used to control the hinge.

9. The roof luggage compartment according to claim 1, characterized in that Also comprising a flexible sealing ring, the flexible sealing ring is arranged around the box cover or the box body, and when the roof trunk is in the closed state, it is in contact with the box cover and the box body at the same time.

10. The roof luggage compartment according to claim 9, characterized in that The flexible sealing ring is a hollow structure, and the compressible elastic height of the flexible sealing ring is 5-15mm.