Luggage support structure with secondary locking
Patent Information
- Application Number
- CN202611429337.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-15
- Publication Date
- 2026-11-03
AI Technical Summary
Existing car trunk locks are prone to loosening during long-distance driving due to vibration and air pressure changes, leading to accidental opening of the trunk and affecting driving safety. In addition, the existing auxiliary locking structure is not aesthetically pleasing and is difficult to adapt to different body sizes.
An auxiliary locking luggage support structure was designed, including a buckle, an upper arm, a lower arm, and a locking hook. By hinged to the upper and lower boxes, the buckle intrudes into the locking hook to provide additional restraint when the boxes are closed, ensuring that the luggage remains closed even if the main lock fails.
It effectively reduces the risk of accidental opening of the suitcase due to vibration and air pressure changes, improving driving safety. At the same time, it is aesthetically pleasing, adaptable to different body sizes, and provides additional locking protection.
Smart Images

Figure CN123025718A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle luggage compartment structures, and particularly to a luggage compartment support structure with auxiliary locking. Background Technology
[0002] In existing technology, roof boxes are a common feature for road trips, used to increase vehicle storage space. Car roofs typically have tracks on the roof, with luggage racks mounted on the tracks, and the luggage boxes secured to the racks. Most luggage boxes rely solely on their built-in locks for locking, usually located at the front or side of the box, using a latch and bolt to keep the box closed. During long-distance driving, factors such as continuous vehicle vibration, road bumps, and air pressure changes at high speeds can all affect the locks. Under prolonged vibration, the latch may loosen, the bolt may retract, or the lock body may fatigue, leading to accidental opening of the box. If the box is opened while driving, items inside may scatter, affecting driving safety. While some existing luggage boxes have a structure that adds a key lock to the main lock, in practical use, it is still difficult to open or lock due to differences in height and strength, and it is also aesthetically unappealing. Summary of the Invention
[0003] The main objective of this invention is to provide a luggage support structure for auxiliary locking, aiming to solve the problem of luggage locking risks in vehicles.
[0004] To achieve the above objectives, the present invention provides an auxiliary locking luggage support structure for use in vehicle luggage, the vehicle luggage comprising a hinged upper body and a lower body, the luggage support structure comprising: The buckle part is fixed to the upper box body. The buckle part is provided with a buckle at one end opposite to the upper box body and a fixing hole is provided on the buckle part. The upper arm has an upper shaft at one end along its length, and the upper shaft is hinged to the fixing hole of the buckle portion; The lower arm has a lower shaft at one end along its length, which is hinged to the inside of the lower housing, and the other end along its length is hinged to the other end along the length of the upper arm. The locking hook part includes a first locking hook and a second locking hook. The first locking hook and the second locking hook are both hinged to the lower shaft and abut against each other in the thickness direction. The first locking hook and the second locking hook are arranged opposite to each other to form an enclosing ring. The rotation direction of the first locking hook and the second locking hook is the same as and opposite to the opening direction of the upper box, respectively, and they are both erected in the free state. When the lower box and the upper box are closed, the buckle of the buckle portion presses the first locking hook and the second locking hook to flip outward relative to each other, thereby intruding into the enclosing ring of the locking hook portion; when the lower box and the upper box are opened, the buckle drives the second locking hook to flip outward until the buckle disengages from the enclosing ring.
[0005] Furthermore, the luggage support structure is two in number and is respectively located at both ends of the length direction of the vehicle luggage.
[0006] Furthermore, the luggage support structure also includes an upper mounting component, and the buckle portion is fixed to the upper box body by the upper mounting component.
[0007] Furthermore, the luggage support structure also includes a lower mounting component, through which the lower shaft is mounted to the lower box body.
[0008] Furthermore, the upper shaft and the lower shaft are located at the opening ends of the upper housing and the lower housing, respectively.
[0009] Furthermore, both the upper mounting member and the lower mounting member extend in the width direction of the vehicle trunk, the buckle portion is adjustable in the length direction of the upper mounting member, and the lower shaft is adjustable in the length direction of the lower mounting member.
[0010] Furthermore, a damping pad is provided at the hinge joint of the upper arm and the lower arm.
[0011] Furthermore, the inner surfaces of the first and second locking hooks are provided with guide slopes.
[0012] Furthermore, the buckle portion is a metal plate, and the buckle and the buckle portion are integrally stamped.
[0013] Furthermore, both the upper arm and the lower arm are made of plastic or metal.
[0014] Compared with the prior art, the beneficial effects of the present invention are: The luggage support structure with auxiliary locking provided by this invention offers an auxiliary locking function in addition to the main luggage lock by incorporating a locking ring, upper arm, lower arm, and locking hook. The upper and lower arms are hinged to the upper and lower compartments, respectively. When the compartment is closed, the locking ring intrudes into the enclosure of the locking hook, creating additional constraint on the compartment. The first and second locking hooks can only be flipped outwards in different directions, preventing vibrations or air pressure changes in the abnormal opening direction of the upper compartment from simultaneously driving both hooks to open. This ensures that the luggage remains closed even if the main lock fails unexpectedly, reducing safety hazards and maintaining an aesthetically pleasing appearance. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the upper body of a luggage support structure for auxiliary locking according to an embodiment of the present invention (first view). Figure 2 This is a schematic diagram of the buckle portion of a luggage support structure for auxiliary locking according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the upper arm structure of a luggage support structure for auxiliary locking according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the lower arm structure of a luggage support structure for auxiliary locking according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the locking hook structure of a luggage support structure for auxiliary locking according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a luggage support structure for auxiliary locking according to an embodiment of the present invention (first view in locked state). Figure 7 This is a schematic diagram of a luggage support structure for auxiliary locking according to an embodiment of the present invention (second view of the locked state). Figure 8 This is a schematic diagram (first view) of the upper and lower compartments of a luggage support structure with auxiliary locking according to an embodiment of the present invention. Figure 9 This is a schematic diagram (second perspective) of the upper and lower compartments of a luggage support structure with auxiliary locking according to an embodiment of the present invention. Detailed Implementation
[0016] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0017] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or combinations thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the units and all combinations thereof of one or more associated listed items.
[0018] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.
[0019] Reference Figures 1 to 9 In one embodiment of the present invention, an auxiliary locking luggage support structure is applied to a vehicle luggage compartment, the vehicle luggage compartment including a hinged upper compartment 010 and a lower compartment 020, characterized in that the luggage support structure includes: The buckle part 100 is fixed inside the upper box 010. The buckle part 100 is provided with a buckle 110 at one end away from the upper box 010, and a fixing hole 120 is provided on the buckle part 100. The upper arm 200 has an upper shaft 210 at one end along its length, and the upper shaft 210 is hinged to the fixing hole 120 of the buckle portion 100. The lower arm 300 has a lower shaft 310 at one end in the length direction, the lower shaft 310 being hinged to the inside of the lower housing 020, and the other end of the lower arm 300 in the length direction being hinged to the other end of the upper arm 200 in the length direction. The locking hook part includes a first locking hook 410 and a second locking hook 420. The first locking hook 410 and the second locking hook 420 are both hinged to the lower shaft 310 and abut against each other in the thickness direction. The first locking hook 410 and the second locking hook 420 are arranged opposite to each other to form an enclosing ring 430. The rotation direction of the first locking hook 410 and the second locking hook 420 is the same as and opposite to the opening direction of the upper box 010, respectively, and they are both erected in the free state. When the lower housing 020 and the upper housing 010 are closed, the buckle 110 of the buckle portion 100 presses the first locking hook 410 and the second locking hook 420 outwards relative to each other, thereby intruding into the enclosing ring 430 of the locking hook portion; when the lower housing 020 and the upper housing 010 are opened, the buckle 110 drives the second locking hook 420 to turn outwards until the buckle 110 disengages from the enclosing ring 430.
[0020] In this design, the lower box 020 and upper box 010 of the vehicle luggage compartment are hinged together by an upper arm 200 and a lower arm 300. The upper box 010 swings relative to the lower box 020 via the upper arm 200 and lower arm 300. A retaining ring 100 is fixed inside the upper box 010, specifically either directly fixed to the inner wall of the retaining ring 100 or connected to the inner wall of the retaining ring 100 via other components. For example, if the upper box 010 is on top, then the retaining ring 100 is fixed to the top of the inner wall of the upper box 010. Alternatively, the retaining ring 100 is not fixed to the inner wall of the upper box 010, but is suspended and fixed inside the upper box 010 via other components. A retaining ring 110 is provided at the end of the retaining ring 100 facing away from the upper box 010; the retaining ring 110 is a closed-loop or open-loop structure. A fixing hole 120 is provided in the thickness direction of the buckle portion 100, and the fixing hole 120 can penetrate the wall thickness of the buckle portion 100. The upper arm 200 is a strip-shaped member, and one end of its length direction is provided with an upper shaft 210. The upper shaft 210 passes through the fixing hole 120 to form a hinge, so that the upper arm 200 can rotate around the upper shaft 210. The lower arm 300 is a strip-shaped member, and one end of its length direction is provided with a lower shaft 310. The lower shaft 310 is hinged to the inner wall of the lower housing 020, and the lower arm 300 can rotate around the lower shaft 310. The other end of the lower arm 300 is hinged to the other end of the upper arm 200. The locking hook portion is installed on the inner wall of the lower housing 020, including a first locking hook 410 and a second locking hook 420. The first hook 410 and the second hook 420 are both hinged to the lower shaft 310 and abut against each other in the thickness direction. Elastic elements are provided corresponding to the first hook 410 and the second hook 420 to maintain an upright position when no external force is applied. For example, both the first hook 410 and the second hook 420 have blind holes, in which a helical spring is installed. The outer end of the helical spring abuts against an external fixed structure, thus providing a restoring force. The first hook 410 and the second hook 420 abut against each other in the thickness direction, meaning their sides are close together. The two hooks are positioned opposite each other, forming a surrounding ring 430 in the free state. The central area of the surrounding ring 430 is used to accommodate the buckle 110. The rotation direction of the first hook 410 is the same as the opening direction of the upper housing 010, and the rotation direction of the second hook 420 is opposite to the opening direction of the upper housing 010. In the free state, both hooks are upright, and the surrounding ring 430 is in a closed, ready-to-close state.
[0021] During use, when the upper housing 010 is closed normally, the buckle 110 presses the first locking hook 410 and the second locking hook 420 outward as it closes, and after entering the enclosure 430, the two locking hooks reset and lock. After the buckle 110 is fully inside the enclosure 430, the two locking hooks reset under the action of elastic force, and the buckle 110 is confined within the enclosure 430, forming an auxiliary connection between the lower housing 020 and the upper housing 010. When the upper housing 010 is opened normally, the upper housing 010 opens by swinging the upper arm 200 and the lower arm 300. The buckle 110 drives the second locking hook 420 outward as the upper arm 200 swings, until the buckle 110 disengages from the enclosure 430, and the upper housing 010 opens. When the suitcase is subjected to vibration or pressure changes that cause the upper compartment to open abnormally in the direction of 010, the driving force on the second locking hook 420 is inconsistent with the swing driving direction of the upper arm 200, and it cannot be driven outward by external force. The buckle 110 remains within the enclosure 430, thereby maintaining the auxiliary locking.
[0022] In summary, by incorporating the buckle 100, upper arm 200, lower arm 300, and hook, an auxiliary locking function is provided in addition to the main lock of the suitcase. The upper arm 200 and lower arm 300 are hinged to the upper body 010 and lower body 020, respectively. When the suitcase is closed, the buckle 110 intrudes into the enclosing ring 430 of the hook, forming an additional constraint on the suitcase. The first hook 410 and the second hook 420 can only be flipped outward in different directions, preventing vibrations or air pressure changes in the abnormal opening direction of the upper body 010 from simultaneously driving both hooks to open. This ensures that the suitcase remains closed even if the main lock fails unexpectedly, reducing safety hazards.
[0023] Reference Figure 8 In one embodiment, the number of luggage support structures is two, and they are respectively disposed at both ends of the length direction of the vehicle luggage.
[0024] In this embodiment, since the front end of a vehicle trunk is generally streamlined and faces the wind, the front end of the vehicle trunk experiences the greatest air pressure. Therefore, the trunk support structure is set at the front end of the vehicle trunk to improve structural strength and assist in lifting.
[0025] Reference Figure 9 In one embodiment, the luggage support structure further includes an upper mounting member 011, and the buckle portion 100 is fixed to the upper box body 010 by the upper mounting member 011.
[0026] In this embodiment, the structural requirements for the upper housing 010 are reduced by adding an upper mounting part 011. The buckle part 100 is fixed to the upper mounting part 011, and the upper mounting part 011 can be fixed to the upper housing 010 by adhesive snap-fit, plug-in, screw connection or integral molding.
[0027] Reference Figure 8In one embodiment, the luggage support structure further includes a lower mounting member 021, through which the lower shaft 310 is mounted to the lower box body 020.
[0028] In this embodiment, the structural requirements for the lower housing 020 are reduced by adding a lower mounting component 021. The lower shaft 310 is hinged to the lower mounting component 021, and the lower mounting component 021 can be fixed to the lower housing 020 by means of adhesive snap-fit, plug-in, screw connection or integral molding.
[0029] In one embodiment, the upper shaft 210 and the lower shaft 310 are located at the opening ends of the upper housing 010 and the lower housing 020, respectively.
[0030] When both the upper arm 200 and the lower arm 300 are relatively long, the structural strength is weakened while material consumption increases. In this embodiment, the lengths of the upper arm 200 and the lower arm 300 are reduced, and the upper shaft 210 and the lower shaft 310 are fixed to the open ends of the upper housing 010 and the lower housing 020, respectively. For example, the upper mounting member 011 and the lower mounting member 021 are both rod-shaped structures and are fixed to the open ends of the upper housing 010 and the lower housing 020, respectively.
[0031] In one embodiment, both the upper mounting member 011 and the lower mounting member 021 extend in the width direction of the vehicle trunk, the buckle portion 100 is adjustable in the length direction of the upper mounting member 011, and the lower shaft 310 is adjustable in the length direction of the lower mounting member 021.
[0032] In this embodiment, the fixed position of the luggage support structure limits the opening and closing angle between the lower box body 020 and the upper box body 010. Specifically, the closer the luggage support structure is to the opening and closing end of the luggage support structure, the greater the fastening effect and the smaller the opening and closing angle; the closer the luggage support structure is to the hinge end of the luggage support structure, the smaller the fastening force and the larger the opening and closing angle. By adjusting the position of the buckle 100 on the upper mounting part 011 and the position of the lower shaft 310 on the lower mounting part 021, the usage requirements under different conditions can be met. The upper mounting part 011 and the lower mounting part 021 are not limited to a single structure and can be formed by combining multiple structural parts to meet functional requirements. Taking the lower mounting part 021 as an example, the lower mounting part 021 includes a lower rod and a lower mounting block. The lower rod is installed on the lower box body 020, while the lower mounting block is used to fix the lower rod and adjust its position. The lower arm 300 is installed on the lower mounting block.
[0033] In one embodiment, a damping pad is provided at the hinge joint of the upper arm 200 and the lower arm 300.
[0034] In this embodiment, a damping pad is installed at the hinge joint of the upper arm 200 and the lower arm 300 to provide a certain rotational resistance. During the opening and closing of the housing, the upper arm 200 and the lower arm 300 will not wobble freely, reducing movement noise and collisions, and improving the user experience.
[0035] In one embodiment, the inner surfaces of the first locking hook 410 and the second locking hook 420 are provided with guide slopes.
[0036] In this embodiment, guide slopes are machined on the inner surfaces of the first locking hook 410 and the second locking hook 420. During the opening process of the upper box by the swing of the upper arm, the buckle 110 is driven by the swing of the upper arm 200 to act on the inner surface of the second locking hook 420, so that the pressure gradually increases, causing the two locking hooks to flip outward smoothly until the buckle 110 disengages from the enclosure ring 430, reducing the impact and wear between the buckle 110 and the locking hook, and making the opening action smoother.
[0037] In one embodiment, the buckle portion 100 is a metal plate, and the buckle 110 is integrally stamped with the buckle portion 100.
[0038] In this embodiment, the retaining ring 100 is made of sheet metal, and the retaining ring 110 and the rest of the retaining ring 100 are integrally formed by stamping. The metal material gives the retaining ring 110 high rigidity and wear resistance, and it is not easily deformed after long-term use. The integral stamping process reduces the number of connection points and eliminates weak points in strength caused by welding or assembly.
[0039] In one embodiment, both the upper arm 200 and the lower arm 300 are made of plastic or metal.
[0040] In this embodiment, the upper arm 200 and lower arm 300 can be made of plastic or metal. Plastic parts are lightweight, low-cost, and rust-free; metal parts have high strength and good fatigue resistance, and the choice can be made according to the carrying requirements of the suitcase and the usage environment. The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A luggage support structure for auxiliary locking, applied to a vehicle luggage compartment, the vehicle luggage compartment comprising a hinged upper compartment (010) and a lower compartment (020), characterized in that, The luggage support structure includes: The buckle part (100) is fixed inside the upper box (010). The buckle part (100) is provided with a buckle (110) at one end away from the upper box (010), and a fixing hole (120) is provided on the buckle part (100). The upper arm (200) has an upper shaft (210) at one end in the length direction, and the upper shaft (210) is hinged to the fixing hole (120) of the buckle part (100). The lower arm (300) has a lower shaft (310) at one end in the length direction, the lower shaft (310) being hinged to the inside of the lower housing (020), and the other end of the lower arm (300) in the length direction being hinged to the other end of the upper arm (200) in the length direction. The locking hook part includes a first locking hook (410) and a second locking hook (420). The first locking hook (410) and the second locking hook (420) are both hinged to the lower shaft (310) and abut against each other in the thickness direction. The first locking hook (410) and the second locking hook (420) are arranged opposite to each other to form an enclosing ring (430). The rotation directions of the first locking hook (410) and the second locking hook (420) are the same as and opposite to the opening direction of the upper box (010), respectively, and they are both erected in the free state. When the lower housing (020) and the upper housing (010) are closed, the buckle (110) of the buckle portion (100) presses the first locking hook (410) and the second locking hook (420) to flip outward relative to each other, thereby intruding into the enclosure ring (430) of the locking hook portion; when the lower housing (020) and the upper housing (010) are opened, the buckle (110) drives the second locking hook (420) to flip outward until the buckle (110) disengages from the enclosure ring (430).
2. The luggage support structure with auxiliary locking according to claim 1, characterized in that, The luggage compartment support structure consists of two parts, which are respectively located at both ends of the length of the vehicle luggage compartment.
3. The luggage support structure with auxiliary locking according to claim 1, characterized in that, The luggage support structure also includes an upper mounting component (011), and the buckle portion (100) is fixed to the upper box body (010) by the upper mounting component (011).
4. The luggage support structure with auxiliary locking according to claim 3, characterized in that, The luggage support structure also includes a lower mounting component (021), and the lower shaft (310) is mounted to the lower box body (020) through the lower mounting component (021).
5. The luggage support structure with auxiliary locking according to claim 4, characterized in that, The upper shaft (210) and the lower shaft (310) are located at the opening ends of the upper housing (010) and the lower housing (020), respectively.
6. The luggage support structure with auxiliary locking according to claim 4, characterized in that, Both the upper mounting part (011) and the lower mounting part (021) extend in the width direction of the vehicle luggage compartment. The buckle part (100) is adjustable in the length direction of the upper mounting part (011), and the lower shaft (310) is adjustable in the length direction of the lower mounting part (021).
7. The luggage support structure with auxiliary locking according to any one of claims 1 to 6, characterized in that, Damping pads are provided at the hinge joint of the upper arm (200) and the lower arm (300).
8. The luggage support structure with auxiliary locking according to any one of claims 1 to 6, characterized in that, The inner sides of the first locking hook (410) and the second locking hook (420) are provided with guide slopes.
9. The luggage support structure with auxiliary locking according to any one of claims 1 to 6, characterized in that, The buckle part (100) is a metal plate, and the buckle (110) and the buckle part (100) are integrally stamped.
10. The luggage support structure with auxiliary locking according to any one of claims 1 to 6, characterized in that, Both the upper arm (200) and the lower arm (300) are made of plastic or metal.
