Fixing device of spare tire cover plate, automobile trunk and automobile

Abstract

The utility model provides a fixing device of a spare tire cover plate, an automobile trunk and an automobile. The fixing device of the spare tire cover plate comprises a clamping seat, a clamping tongue and a telescopic driving mechanism. The clamping base is arranged on the vehicle side decoration plate and located on one side of the spare tire cover plate, and the clamping tongue is installed on the clamping base in a sliding mode and provided with a first position where the clamping tongue slides out to stop the spare tire cover plate and a second position where the clamping tongue retracts to avoid the spare tire cover plate. When the clamping tongue is located at the first position, the clamping tongue has a certain interference amount on the side portion of the spare tire cover plate, and the clamping tongue is used for limiting and supporting the spare tire cover plate. And when the clamping tongue is at the second position, the clamping tongue has no interference amount on the side part of the spare tire cover plate, so that the spare tire cover plate rotates. Due to the sliding structural design of the clamping tongue relative to the clamping base, a user does not need to support the cover plate with one hand when taking articles stored below the spare tire cover plate, the operation convenience of the user is improved, and the articles can be stored and taken more easily and quickly.

Description

Technical Field

[0001] This utility model relates to the technical field of spare tire cover limiting structure, specifically to a spare tire cover fixing device, a car trunk, and a car. Background Technology

[0002] A spare tire cover is a car interior trim piece located at the bottom of the trunk, covering the spare tire. It protects the spare tire from dust, moisture, and other potential damage, while also making the trunk look neater. In some traditional models, because there is no structure to secure the spare tire cover, users need to support the cover with one hand and use the other hand to reach items stored under it. This is particularly inconvenient when the items are large or heavy, affecting user convenience. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention provides a spare tire cover fixing device, a car trunk and a car, so as to improve the technical problem that the existing spare tire cover lacks a fixing structure and is inconvenient to operate.

[0004] To achieve the above and other related objectives, the first aspect of this utility model provides a fixing device for a spare tire cover. The fixing device includes a mounting bracket, a latch, and a telescopic drive mechanism. The mounting bracket is disposed on the side trim panel of the vehicle and located on one side of the spare tire cover. The latch is slidably mounted on the mounting bracket and has a first position where it slides out to stop the spare tire cover and a second position where it retracts to allow the spare tire cover to pass. The telescopic drive mechanism is installed between the mounting bracket and the latch, and holds the latch in the first position or the second position, or allows the latch to slide between the first position and the second position.

[0005] In one embodiment of the fixing device of this utility model, the telescopic drive mechanism includes a guide rod and an elastic element. The guide rod is disposed on the card seat and guides and connects to the card tongue. The elastic element pushes and connects the card seat and the card tongue.

[0006] In one embodiment of the fixing device of this utility model, the elastic element is a compression spring, and the compression spring is sleeved and installed on the guide rod.

[0007] In one embodiment of the fixing device of this utility model, the telescopic drive mechanism includes an elastic element, and the latch includes an embedded portion and a protrusion. The embedded portion is slidably connected to the latch seat and abuts against the elastic element. The protrusion is connected to the embedded portion, and at least a portion of the protrusion is located in the first position.

[0008] In one embodiment of the fixing device of this utility model, the protrusion includes a first inclined surface and a second inclined surface. When the spare tire cover abuts against and presses against the first inclined surface, the latch slides from the first position to the second position. When the spare tire cover abuts against the second inclined surface, the latch remains in the first position.

[0009] In one embodiment of the fixing device of this utility model, a slot is provided on the side trim panel of the vehicle, and the slot is engaged with the mounting bracket.

[0010] In one embodiment of the fixing device of this utility model, the retaining seat includes a cavity portion, a first retaining plate, and a second retaining plate. The cavity portion engages with the retaining slot and is slidably connected to the retaining tongue. The first retaining plate is disposed on the outer side of the cavity portion. The second retaining plate is disposed on the outer side of the cavity portion and is spaced apart from the first retaining plate to form a retaining groove, which is adapted to the retaining slot.

[0011] In one embodiment of the fixing device of this utility model, at least a portion of the latch is slidably connected to the cavity portion, and a limiting plate is provided at the opening end of the cavity portion, the limiting plate abutting against the latch located in the cavity portion.

[0012] A second aspect of this utility model also provides a car trunk, including the fixing device described in any of the above claims.

[0013] The third aspect of this utility model also provides a car, including the aforementioned car trunk.

[0014] This utility model provides a fixing device for a spare tire cover, a car trunk, and a car. The fixing device for the spare tire cover is disposed on the side trim panel of the car and located on one side of the spare tire cover. A latch is slidably mounted on a mounting base and has a first position and a second position. When the latch is in the first position, it has a certain amount of interference on the side of the spare tire cover, which is used to limit and support the spare tire cover. When the latch is in the second position, it does not have any interference on the side of the spare tire cover. The sliding design of the latch relative to the mounting base eliminates the need for users to support the cover with one hand when retrieving items stored under the spare tire cover, improving user convenience and making it easier and faster to store and retrieve items. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a top sectional view of one embodiment of the fixing device of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixing device of this utility model being snapped into the side trim panel of a vehicle in one embodiment;

[0018] Figure 3 This is an enlarged schematic diagram of a portion of the structure in one embodiment of the fixing device of this utility model;

[0019] Figure 4 This is a top sectional view of another embodiment of the fixing device of this utility model;

[0020] Figure 5 This is a schematic diagram of the spare tire cover in the flip-up state in one embodiment of the fixing device of this utility model;

[0021] Figure 6 This is a schematic diagram of the spare tire cover plate in the lowered state in one embodiment of the fixing device of this utility model.

[0022] Component designation explanation:

[0023] 100, Card holder; 110, Cavity section; 111, Limiting plate; 120, First plate; 130, Second plate; 140, Card slot; 200, Telescopic drive mechanism; 210, Guide rod; 220, Elastic element; 300, Tongue; 310, Embedded part; 311, Limiting ring plate; 320, Protrusion; 321, First inclined surface; 322, Second inclined surface; 400, Side trim panel; 410, Socket. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0025] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0026] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0027] To address the technical problems of existing spare tire cover systems lacking a fixing structure and causing inconvenience in operation, this utility model provides a spare tire cover fixing device, a car trunk, and a car. This spare tire cover fixing device can support and fix the spare tire cover, eliminating the need for users to support the cover with one hand when retrieving items stored under it, thus improving user convenience and making storing and retrieving items easier and faster.

[0028] Please see Figures 1 to 6 The first aspect of this utility model provides a fixing device for a spare tire cover. This fixing device is installed on a side panel 400 of the vehicle and located on one side of the spare tire cover along the width direction of the vehicle. Specifically, it is installed on the side of the trunk of the car. When the spare tire cover is lifted, it supports the lower surface of the spare tire cover, preventing it from falling. The installation position of the fixing device is not limited and can be determined according to the opening angle of the spare tire cover for easy access to items. As long as there is a certain amount of interference with the side of the spare tire cover, it can provide a support point. Preferably, there are two fixing devices, respectively installed on the side panels 400 of the spare tire cover on both sides in the width direction, providing support points on both sides of the spare tire cover and ensuring stability. However, those skilled in the art will understand that simply providing one fixing device for the spare tire cover on one side of the vehicle can also serve the purpose of supporting the spare tire cover, although the stability will be slightly lower compared to having fixing devices on both sides.

[0029] Please see Figure 1The fixing device includes at least a mounting bracket 100 and a latch 300. The mounting bracket 100 serves as the connection structure between the cover fixing device and the side trim panel 400. The mounting bracket 100 is fixedly installed on the side trim panel 400 and located on one side of the spare tire cover along the width direction of the vehicle. The connection method between the mounting bracket 100 and the side trim panel 400 is not limited; it can be any suitable connection method that allows the mounting bracket 100 to be fixedly installed on the side trim panel 400. For example, it can be welding, bonding, bolting, or snap-fit ​​connection.

[0030] The latch 300, as a movable component, is slidably mounted on the mounting base 100 and has a first position where it slides out to stop the spare tire cover and a second position where it retracts to avoid the spare tire cover. When the latch 300 is in the first position, there is a certain amount of interference between the latch 300 and the side of the spare tire cover, providing a support point for the spare tire cover. When the latch 300 is in the second position, there is no interference between the side of the spare tire cover and the latch 300; that is, when the spare tire cover rotates, it will not interfere with the latch 300. Specifically, when the raised spare tire cover needs to be supported and limited, the latch 300 slides out to the first position, allowing it to stop on one side of the spare tire cover. When the spare tire cover needs to be flipped up or down, the latch 300 retracts to the second position, avoiding the rotational movement of the spare tire cover. The latch 300 can slide to the first position or retract to the second position in any way. The latch 300 can be moved manually to switch between the first and second positions. Alternatively, the movement of the latch 300 can be controlled by a drive mechanism to switch between the first and second positions.

[0031] The fixing device is installed on the side trim panel 400 of the spare tire cover along the width direction of the vehicle. During the process of lifting the spare tire cover, when the upper surface of the spare tire cover is below the latch 300, rotating the spare tire cover presses against the latch 300, causing the latch 300 to retract towards the mounting bracket 100 to a second position, ensuring that the latch 300 does not interfere with the side of the spare tire cover. As the spare tire cover rotates, when the lower surface of the spare tire cover is above the latch 300, the latch 300 slides out towards the spare tire cover, creating a contact point between the latch 300 and the lower surface of the spare tire cover. The spare tire cover is then placed onto the latch 300, effectively stopping the spare tire cover. At this point, when the user retrieves items stored under the spare tire cover, they no longer need to support the cover with one hand, improving user convenience.

[0032] The fixing device also includes a telescopic drive mechanism 200, which serves as the drive mechanism for sliding the latch 300 and is installed between the latch seat 100 and the latch 300. The telescopic drive mechanism 200 can hold the latch 300 in a first position. When it is necessary to move the latch 300 to a second position to avoid the spare tire cover, the latch 300 can be manually slid to the second position. Conversely, the telescopic drive mechanism 200 can hold the latch 300 in the second position, and when it is necessary to stop the latch 300 against the spare tire cover, the latch 300 can be slid to the first position to connect with the spare tire cover. The telescopic drive mechanism 200 can also be an automatic control mechanism to control the sliding of the latch 300 between the first and second positions. The type of telescopic drive mechanism 200 is not limited; it can be any suitable type of linear drive device that satisfies the displacement movement of the latch 300. The telescopic drive mechanism 200 can be a powered drive mechanism, such as a cylinder drive mechanism, a hydraulic cylinder drive mechanism, a gear and rack drive mechanism, a lead screw and guide rail drive mechanism, etc., but is not limited thereto. The telescopic drive mechanism 200 can also be a non-powered drive mechanism, such as a compression spring, an air bag, a gas spring, etc.

[0033] Please see Figure 1 and Figure 2 To avoid using external power components and reduce design complexity, in one embodiment of the fixing device of this utility model, the telescopic drive mechanism 200 adopts an elastic structure design. The telescopic drive mechanism 200 includes a guide rod 210 and an elastic element 220. One end of the guide rod 210 is fixedly installed in the retaining seat 100, and the other end of the guide rod 210 extends towards the latch 300 and is guidedly connected to the latch 300. That is, the latch 300 is slidably connected to the guide rod 210, and the latch 300 can slide along the axial direction of the guide rod 210. The configuration of the guide rod 210 provides a clear guiding path for the displacement of the latch 300, allowing the latch 300 to extend or retract along a predetermined trajectory. The elastic element 220 pushes against the connecting seat 100 and the latch 300, meaning the elastic element 220 is compressed and installed between the seat 100 and the latch 300. Along the compression direction of the elastic element 220, one end of the elastic element 220 is connected to the seat 100 and applies a pushing force to the seat 100; the other end of the elastic element 220 is connected to the latch 300 and applies a pushing force to the latch 300. The latch 300 can retract and pop out relative to the seat 100 by simply pressing or releasing it. Specifically, when the spare tire cover needs to rotate above the latch 300, the latch 300 is pressed down, eliminating any interference in the rotation path of the spare tire cover; when the spare tire cover needs support from the latch 300, the pressure on the latch 300 is released, causing the latch 300 to spring back below the spare tire cover to support it.

[0034] The type of elastic element 220 is not limited; it can be any suitable structure that enables the latch 300 to extend and retract relative to the mounting base 100, such as a spring or an elastic airbag. Specifically, in this embodiment, the elastic element 220 is a compression spring, located between the latch 300 and the mounting base 100. One end of the compression spring can be fixed inside the mounting base 100, and the other end can push against and connect to the latch 300, thereby compressing and resetting the latch 300. The number and installation position of the compression springs are not limited, as long as they can ensure the stable extension and retraction of the latch 300 and guarantee the stable support of the latch 300 for the spare tire cover, preventing the latch 300 from retracting under the pressure of the spare tire cover. Specifically, in this embodiment, there are two sets of compression springs, which are installed alternately between the inner cavity of the mounting base 100 and the latch 300.

[0035] For further details, please refer to Figure 1 In one embodiment of the fixing device of this utility model, a compression spring is sleeved and installed on the guide rod 210. Specifically, in this embodiment, the compression spring is sleeved and installed on the guide rod 210 between the inner cavity of the retaining seat 100 and the latch 300. This ensures that the elastic force applied by the compression spring is transmitted along the direction of the guide rod 210, thereby precisely controlling the direction of the force, and thus controlling the sliding direction of the latch 300, reducing the friction between the latch 300 and the retaining seat 100, and improving the reliability of the entire mechanism.

[0036] Please see Figure 1 and Figure 2 In one embodiment of the fixing device of this utility model, the latch 300 includes an insert portion 310 and a protrusion 320. The insert portion 310 is slidably connected to the inner cavity of the holder 100, and a limiting plate 111 is provided at the open end of the inner cavity of the holder 100. A limiting ring plate 311 is also provided at the end of the insert portion 310 away from the protrusion 320. The limiting ring plate 311 is located inside the holder 100, and the limiting plate 111 cooperates with the limiting ring plate 311 to limit the maximum displacement of the insert portion 310, preventing the latch 300 from sliding out and detaching from the holder 100. In this embodiment, the limiting ring plate 311, the insert portion 310, and the protrusion 320 are an integral structure.

[0037] An elastic element 220 and a guide rod 210 are provided in the inner cavity of the insert 310 and the card holder 100. One end of the guide rod 210 is fixedly connected to the card holder 100. A guide hole is provided on the insert 310 for the guide rod 210 to pass through. A compression spring is provided between the inner cavity of the card holder 100 and the insert 310. When no external force is applied to the latch 300, the compression spring pushes the insert 310 and causes the limiting ring plate 311 to abut against the limiting card plate 111. At this time, the protrusion 320 has a certain amount of interference on the side of the spare tire cover. The protrusion 320 and the insert 310 are integrally connected structures. The protrusion 320 is located in the direction close to the spare tire cover, and at least part of the protrusion 320 is located in the first position, thereby forming a support structure for the spare tire cover.

[0038] Please see Figure 4 In another embodiment of the fixing device of this utility model, the telescopic drive mechanism 200 includes an elastic element 220, which is a compression spring. The latch 300 includes an embedded part 310 and a protrusion 320. The embedded part 310 is slidably connected to the inner cavity of the latch seat 100. The elastic element 220 is compressed and installed between the latch seat 100 and the embedded part 310. The embedded part 310 abuts against the elastic element 220. The protrusion 320 and the embedded part 310 are integrally formed. When no external force is applied to the latch 300, the compression spring abuts against the embedded part 310 and applies a pushing force to the embedded part 310. At this time, at least part of the protrusion 320 remains in the first position to stop the spare tire cover.

[0039] Please see Figure 3 In one embodiment of the fixing device of this utility model, a slot 410 is provided on the side trim panel 400, and the slot 100 is engaged with the slot 410. By engaging, stability is satisfied while fixing is simple and easy to operate, simplifying the installation process of the side trim panel 400 and the slot 100. No additional screws or adhesives are required, reducing the use of fasteners and thus saving time and costs.

[0040] Please see Figure 2 and Figure 5In one embodiment of the fixing device of this utility model, the protrusion 320 has a similar triangular structure. The protrusion 320 includes a first inclined surface 321 and a second inclined surface 322. When the spare tire cover abuts against and presses against the first inclined surface 321, the latch 300 slides from the first position to the second position to avoid the spare tire cover. When the spare tire cover abuts against and presses against the second inclined surface 322, the latch 300 remains in the first position or slides from the first position to the second position. Specifically, in this embodiment, the first inclined surface 321 is the side of the spare tire cover that first abuts against the spare tire cover during the rotation of the spare tire cover from bottom to top. The first inclined surface 321 extends obliquely from the embedded part 310 towards the spare tire cover and matches the rotation direction of the spare tire cover, so that the side of the spare tire cover slides along the surface direction of the first inclined surface 321. When the spare tire cover is lifted, the side of the spare tire cover presses against the first inclined surface 321. The spare tire cover first abuts against the contact point of the first inclined surface 321 near the embedded part 310, and slides on the first inclined surface 321 in a direction away from the embedded part 310, thereby pressing the first inclined surface 321, and then pressing the latch 300 to retract from the first position to the second position, until the spare tire cover passes over the first inclined surface 321. The latch 300 is then extended and reset to the first position by the elastic force of the elastic element 220, i.e., the compression spring.

[0041] Please see Figure 6 The spare tire cover abuts against and presses against the second inclined surface 322 to support the spare tire cover or retract the latch 300. Specifically, when the spare tire cover is supported and fixed above the latch 300, the side of the spare tire cover abuts against the second inclined surface 322. Relying on the support of the second inclined surface 322 and the pushing force of the elastic element 220 on the latch 300, the spare tire cover is kept fixed and does not fall. At this time, the latch 300 is in the first position. When it is necessary to lower the spare tire cover, the principle of action of the spare tire cover on the first inclined surface 321 is the same. The spare tire cover applies a greater force to the second inclined surface 322. The second inclined surface 322 is under force, forcing the latch 300 to retract from the first position to the second position until the spare tire cover passes the latch 300. Then, the elastic element 220 pops the latch 300 back to its original position. By setting the first inclined surface 321 and the second inclined surface 322, the operation of fixing the spare tire cover plate by the fixing device is made simpler, and the operation can be achieved simply by acting on the spare tire cover plate.

[0042] Please see Figure 1 and Figure 2In one embodiment of the fixing device of this utility model, the mounting base 100 includes a cavity portion 110, a first mounting plate 120, and a second mounting plate 130. The cavity portion 110 engages with the corresponding mounting slot 410 of the side trim panel 400, forming a semi-concealed structure and reducing the space area of ​​the fixing device in the trunk. The cavity portion 110 is slidably connected to the latch 300. Specifically, in this embodiment, the insert portion 310 is slidably connected to the inner cavity of the cavity portion 110. The first mounting plate 120 is disposed on the outer side of the cavity portion 110, and the second mounting plate 130 is disposed on the outer side of the cavity portion 110, spaced apart from the first mounting plate 120. The gap between the first mounting plate 120 and the second mounting plate 130 forms a slot 140 with the outer wall of the cavity portion 110, and the slot 140 is adapted to the mounting slot 410. Specifically, after the fixing device is installed on the side trim panel 400, the first clip 120 is attached to the trim panel surface on one side of the clip 410, the second clip 130 is located on the trim panel surface on the other side of the clip 410, and the side trim panel 400 around the clip 410 is located between the first clip 120 and the second clip 130, thereby increasing the stability of the installation.

[0043] Furthermore, in order to enable the second card plate 130 of the card holder 100 to pass smoothly through the slot 410, in one embodiment of the fixing device of this utility model, the second card plate 130 needs to be made of a flexible material that can be bent and return to its original shape. The second card plate 130 can be made of polyurethane, polyvinyl chloride, rubber, etc., to simplify the structural design and reduce the installation difficulty.

[0044] Please see Figure 3 In one embodiment of the fixing device of this utility model, at least a portion of the latch 300 is slidably connected to the cavity portion 110. A limiting plate 111 is provided on the inner cavity surface of the open end of the cavity portion 110, and the limiting plate 111 abuts against the latch 300 located in the cavity portion 110. Specifically, in this embodiment, the limiting plate 111 cooperates with the limiting ring plate 311 of the embedding portion 310 to limit the maximum extension displacement of the latch 300 and prevent the latch 300 from disengaging from the retainer 100.

[0045] The second aspect of this utility model also provides a car trunk, which includes the fixing device described in any of the above embodiments for supporting and fixing the spare tire cover. It should be noted that the car trunk of this utility model also includes conventional components and conventional layout structures of existing car trunks such as trunk lid, trunk liner, and trunk lid lock, which will not be described in detail here.

[0046] A third aspect of this utility model also provides an automobile, which includes the automobile trunk described in the above embodiments or the fixing device described in any of the above embodiments. It should be noted that the automobile of this utility model also includes conventional components of existing automobiles such as an engine, seats, wheels, and a vehicle body, which will not be described in detail here.

[0047] This utility model relates to a spare tire cover fixing device, a car trunk, and a car. The fixing device is located on the side trim panel of the car and on one side of the spare tire cover. A latch is slidably mounted on a mounting base and has a first position and a second position. When the latch is in the first position, it has a certain amount of interference on the side of the spare tire cover, which is used to limit and support the spare tire cover. When the latch is in the second position, it does not have any interference on the side of the spare tire cover. The sliding design of the latch relative to the mounting base eliminates the need for users to support the cover with one hand when retrieving items stored under the spare tire cover, improving user convenience and making it easier and faster to access items. This improves upon the technical problem of existing spare tire covers lacking a fixing structure and being inconvenient to operate. Therefore, this utility model effectively overcomes some practical problems in the prior art and has high utilization value and significance.

[0048] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A device for fixing a spare tire cover, characterized in that, include: A chock seat is provided on the side trim panel of the vehicle and is located on one side of the spare tire cover; The latch is slidably mounted on the latch seat and has a first position in which it slides out to stop the spare tire cover and a second position in which it retracts to allow the spare tire cover to pass. A telescopic drive mechanism is installed between the card holder and the card tongue, and keeps the card tongue in the first position or the second position, or allows the card tongue to slide between the first position and the second position.

2. The fixing device according to claim 1, characterized in that, The telescopic drive mechanism includes: A guide rod is disposed on the card holder and guides the connection to the card tongue; An elastic element pushes and connects the card holder and the card tongue.

3. The fixing device according to claim 2, characterized in that, The elastic element is a compression spring, which is sleeved and installed on the guide rod.

4. The fixing device according to claim 1, characterized in that, The telescopic drive mechanism includes an elastic element, and the latch includes an embedded portion and a protrusion; the embedded portion is slidably connected to the latch seat and abuts against the elastic element; the protrusion is connected to the embedded portion, and at least a portion of the protrusion is located in the first position.

5. The fixing device according to claim 4, characterized in that, The protrusion includes a first inclined surface and a second inclined surface. When the spare tire cover abuts against and presses against the first inclined surface, the latch slides from the first position to the second position. When the spare tire cover abuts against the second inclined surface, the latch remains in the first position.

6. The fixing device according to claim 1, characterized in that, The side trim panel of the vehicle has a latch, and the latch engages with the latch.

7. The fixing device according to claim 6, characterized in that, The card holder includes: The cavity portion engages with the bayonet and is slidably connected to the latch; The first card plate is disposed on the outer side of the cavity portion; The second card plate is disposed on the outer side of the cavity and spaced apart from the first card plate to form a card slot, which is adapted to the card opening.

8. The fixing device according to claim 7, characterized in that, At least a portion of the latch is slidably connected to the cavity portion, and a limiting plate is provided at the open end of the cavity portion, the limiting plate abutting against the latch located in the cavity portion.

9. A car trunk, characterized in that, Includes the fixing device according to any one of claims 1 to 8.

10. A car, characterized in that, Includes the car trunk as described in claim 9.

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