A table leg assembly system for a vehicle spare tire cover
Patent Information
- Application Number
- CN202522668029.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-16
AI Technical Summary
本申请的方案，盖板本体上没有明显的突出结构，有利于车辆的造型设计；
Smart Images
Figure CN224898967U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of automotive interiors, and specifically relates to a table leg assembly system for a vehicle spare tire cover. Background Technology
[0002] The spare tire cover is an important interior component in SUVs and MPVs, possessing good load-bearing capacity. Spare tire covers are made of various materials, the most common being fiberglass reinforced polyurethane (PHC) sheets with a honeycomb paper core. Other materials include fiberglass reinforced PP sheets with a honeycomb paper core (often called dry-process PHC) and PP honeycomb reinforced PP sheets (often called PPHC). The legs on the spare tire cover are usually cylindrical. The advantage of a cylindrical shape is ease of processing and good stability, but the disadvantage is that it takes up more space when stored. There are also flatter designs, which are generally folded and attached to the back of the cover, taking up less space. With the folding design, because the legs remain connected to the back of the cover, space occupation is unavoidable. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this application proposes to provide a table leg assembly system for vehicle spare tire cover, which enables the table legs to be quickly disassembled and assembled, and the disassembled table legs can be stacked when stored, thereby further reducing storage space.
[0004] A table leg assembly system for a vehicle spare tire cover includes a cover plate, table legs, and quick-connectors. The cover plate includes a PHC substrate and a reinforcing plate embedded in the bottom surface of the PHC substrate, wherein the reinforcing plate has a locking hole. The table legs include a profile body and a connecting plate near the upper end, the connecting plate also having a locking hole. The quick-connectors include a cam-loaded handle, a pivot, and a lock body, the end of the lock body having a radially protruding protrusion. The locking hole on the reinforcing plate allows the protrusion on the lock body to pass through and cannot be retracted after twisting.
[0005] Furthermore, a lock hole protection plate is also provided on top of the reinforcing plate.
[0006] Furthermore, the protrusion at the end of the lock body is a pin that runs through the lock body.
[0007] Furthermore, the main body of the profile is a standard L-shaped profile.
[0008] Furthermore, the bottom of the table legs is equipped with a support plate that fits onto the main body of the profile.
[0009] Compared with the prior art, this application has at least the following beneficial effects: The solution proposed in this application has no obvious protruding structure on the cover plate body, which is beneficial to the vehicle's styling design. The solution in this application uses quick-connect parts, which are convenient for installation and disassembly; The table legs of this application have an L-shaped cross-section, allowing for direct use of profiles. Using L-shaped profiles facilitates mass production and reduces costs, while also making them easy to stack and store, thus occupying less storage space.
[0010] This application incorporates a detachable support plate at the bottom of the table legs, enabling the table leg system to remain stable on soft surfaces such as beaches and grass, preventing the table legs from sinking and expanding the product's applicable scenarios. Attached Figure Description
[0011] Figure 1 : A schematic diagram of the table legs mounted on the cover plate; Figure 2 : Schematic diagram of the matching status of the lock body, the protrusion, and the embedded parts; Figure 3 : Schematic diagram of the reinforcement plate layout on the bottom surface of the cover plate; Figure 4 Schematic diagram of the cover plate for the pre-embedded reinforcing plate Figure 1 ; Figure 5 Schematic diagram of the cover plate for the pre-embedded reinforcing plate Figure 2 ; Figure 6 Schematic diagram of the cover plate for the pre-embedded reinforcing plate Figure 3 ; Figure 7 Schematic diagram of the cover plate for the pre-embedded reinforcing plate Figure 4 ; Figure 8 Schematic diagram of the reinforcing plate; Figure 9 : Schematic diagram showing the matching of the lock body and the protrusion with the lock hole on the reinforcing plate; Figure 10 Quick Connector Diagram Figure 1 ; Figure 11 Quick Connector Diagram Figure 2 ; Figure 12 : Schematic diagram showing the matching of the beveled bottom surface of the table legs with the support plate; Figure 13 : Diagram showing the stacked state of the table legs.
[0012] In the diagram: 1. Cover plate body; 2. Reinforcing plate; 3. Lock hole protection plate; 4. Lock hole on the reinforcing plate; 4a. Lock hole lug on the reinforcing plate; 11. Lock body; 11a. Protrusion on the lock body; 12. Rotating shaft; 13. Handle; 13a. Cam structure; 14. Washer; 15. Steel paper; 21. Table leg body; 22. Connecting plate; 23. Support plate. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.
[0014] Compare with Example 1 This table functions as a small table by installing a folding frame under the cover. The folding frame, with its four legs connected by a folding mechanism, maintains stability and prevents the table from tipping over. The frame is universal and readily available from e-commerce channels.
[0015] If the cover plate is placed directly on the table frame, it is prone to horizontal sliding. Therefore, a connecting mechanism needs to be designed on the back of the cover plate. The most common solution is to install a four-pronged nut on the front of the cover plate and then use bolts to install a plastic or metal connector from the back. The connector usually has a certain height, which affects the shape design of the cover plate.
[0016] In addition, the diameter of a single leg of the folding table frame exceeds 40mm, and the folding mechanism also takes up considerable space. When stored, the cross-sectional dimensions also need to reach 150*150mm, occupying a large storage space.
[0017] Compare with Example 2 Installing non-removable folding legs on the back of the cover plate is another option. Due to the size limitations of the cover plate, the length of the folding legs is usually less than half the diagonal of the cover plate. Because the folding legs are non-removable, their cross-sectional dimensions must also be as small as possible. To reduce the folded size, sometimes a recess is designed on the back of the cover plate so that the legs barely protrude from the cover plate body when folded. PHC cover plates are typically no more than 20mm thick, and the achievable recess depth is usually less than 15mm, thus limiting the cross-sectional dimensions of the legs. Even so, the recess reduces the strength of the cover plate and creates an aesthetic defect. Therefore, this solution is not suitable for the most common PHC spare tire cover plates. Example
[0018] like Figure 4 , 5 As shown in Figures 6 and 7, a reinforcing plate is provided on the back of the spare tire cover body 1. A lock hole protection plate 3 is also provided on the reinforcing plate. The reinforcing plate 2 and the lock hole protection plate 3 are firmly connected as one unit. A lock hole 4 is provided on the reinforcing plate 2. Figure 8 As shown, the keyhole 4 also includes an ear portion 4a.
[0019] Embedded components can be made of metal, such as carbon steel or stainless steel, or plastic or composite materials. PHC material is a honeycomb paper sandwich material with a glass fiber reinforced polyurethane surface. For flat, sheet-like reinforcing plates, pre-embedding is easily achieved without significantly increasing costs. The reinforcing plate is flush with the cover plate body, with no protrusions, and will not affect the layout and design of surrounding spare tires or other environmental components.
[0020] The keyhole protection plate 3 can be a flat spherical or conical surface, such as... Figure 4 and Figure 7 It is easier to bond with PHC materials, but its large projected area is a drawback. Using... Figure 5 or Figure 6 This solution can reduce the projected area. In this case, even if the shape of the keyhole protection plate is not flat enough and the adhesion to the PHC material is not good, the increased area of the reinforcing plate 2 directly bonded to the PHC can ensure that the adhesion of the reinforcing plate 2 is relatively firm.
[0021] like Figure 1 As shown, the table leg includes a profile 21 and a connecting plate 22, with the connecting plate 22 having the same locking holes as the reinforcing plate. The profile 21 contacts the reinforcing plate 2 after the table leg is assembled. The quick-connect structure, in addition to... Figure 1 You can also refer to Figure 11 and Figure 12 The quick-connect component includes a handle 13, a pivot 12, a lock body 11, a washer 14, and a steel sheet 15. The handle has a cam structure 13a, and the lock body has a protrusion 11a.
[0022] The lock holes on the table leg connecting plate 22 and the reinforcing plate 2 are aligned. With the cam 13a on the handle in the open position, the lock body 11 of the quick connector is inserted. The protrusion 11a on the lock body 11 passes through the ear portion 4a of the lock hole. Then, the lock body of the quick connector rotates 90° to achieve [the desired effect]. Figure 9 As shown, the protrusion 11a is blocked by the lock hole 4, and the lock body 11 cannot be pulled out. Turning the handle 13 puts the cam in a pressed state, thus achieving locking.
[0023] Figure 1 The state of the handle 13 is clearly visible, but the alignment of the protrusion 11a on the lock body with the reinforcing plate 2 is unclear. Therefore... Figure 2 A cross-section from another angle shows the state in which the protrusion 11a is blocked by the reinforcing plate 2.
[0024] The arrangement of the reinforcing plates on the cover plate is as follows: Figure 3 As shown, they are located at the four corners of the cover plate.
[0025] The keyhole protection plate of the reinforcing plate is designed to prevent PHC material from occupying the space of the lock body 11 and the protrusion 11a. If the reinforcing plate does not have a keyhole protection plate, the PHC material will cover the keyhole, making the lock body 11 unable to be inserted. Even if the PHC material corresponding to the keyholes 4 and 4a is cleaned with a drill bit, after the lock body 11 rotates, the area reached by the protrusion 11a exceeds the keyhole and is located behind the reinforcing plate 2, which is difficult to clean. After the keyhole protection plate 3 is provided, there will be no PHC material in the area between the reinforcing plate 2 and the keyhole protection plate 3, eliminating the need for keyhole cleaning work.
[0026] The keyhole protection plate of the reinforcing plate can be of various shapes, as long as it can cover the area traversed by the lock body 11 and the protrusion 11a during the rotation process, Figure 4 , 5 , 6, and 7 show various shapes such as a dome shape, a pointed top shape, and a flat top shape.
[0027] In Figure 10 , the protrusion 11a on the lock body 11 is an integral structure, which can be formed by processes such as casting, milling, and welding. In Figure 11 , the protrusion 11a on the lock body 11 is a pin structure mounted on the lock body. The protrusion on the lock body can of course be other shapes, as long as it can protrude from the lock body, can enter the keyhole through the ear portion 4a on the keyhole, and can be blocked by the reinforcing plate 2 after rotation. As shown Figure 9 , the dotted line part represents the protrusion 11a blocked by the reinforcing plate 2.
[0028] The table leg is of an open structure. The profile 21 shown in the figure is L-shaped, and other cross-sectional shapes can also be adopted, such as an L-shaped cross-section with an expanded angle, or a U-shape with a slightly widened opening. One basic requirement is that the table legs can be stacked, which is one of the original intentions of this solution. The material can be aluminum alloy, carbon steel, plastic, or composite material.
[0029] A connecting plate is arranged at a position near the upper end of the table leg, the edge of which is connected to the profile by welding or other methods, and a hole allowing the lock body 11 and the protrusion 11a to pass through is arranged in the middle. The connecting plate 22 is spaced a certain distance from the top end of the table leg, which can provide a margin for the deformation of the connecting plate.
[0030] The side of the washer 14 that is in contact with the vulcanized fiber 15 is flat, and the side that is in contact with the cam has a cylindrical notch, so as to substantially match the cam, increase the force-bearing area of pressure and friction, and prevent the quick connector from loosening.
[0031] As shown Figure 12As shown, a support plate 23 is provided at the bottom of the table legs. When the table legs come into contact with soft surfaces such as sand or grass, they can easily sink in due to the small cross-sectional area of the profile. The support plate increases the load-bearing area and prevents the table legs from sinking. The support plate 23 has holes, and the bottom cross-section of the table legs 21 becomes smaller; the matching position between the two is the assembly position of the support plate. The support plate can easily be made in a large size, much larger than the table legs of a folding table frame, so it performs better on soft surfaces.
[0032] like Figure 13 As shown, the disassembled table legs can be stacked. Although the connecting plates prevent them from completely overlapping along the length, the increase in cross-sectional dimension is minimal. The quick-connect parts are already small and don't take up much space when stored. The support plate is flat, so it also doesn't take up much space when stored. The support plate can also be made in a conical shape, which also allows for stacking.
[0033] In summary, the table legs can be quickly disassembled by hand using quick-connect fittings, making them more convenient to use; the table legs can be stacked, taking up less storage space, or larger cross-sectional profiles can be used to increase stability; the support plates at the bottom of the table legs increase the landing area, allowing them to be used on soft surfaces. Compared to the solutions in Comparative Examples 1 and 2, this design is more suitable for application on PHC cover plates.
Claims
1. A table leg assembly system for a vehicle spare tire cover, characterized in that, The device includes a cover plate, table legs, and quick-connect fittings. The cover plate includes a PHC substrate and a reinforcing plate embedded in the bottom surface of the PHC substrate, wherein the reinforcing plate has a lock hole. The table legs include a profile body and a connecting plate near the top, which also has a lock hole. The quick-connect fittings include a cam-loaded handle, a pivot, and a lock body, wherein the end of the lock body has a radial protrusion. The lock hole on the reinforcing plate allows the protrusion on the lock body to pass through and cannot be removed after being twisted.
2. The table leg assembly system for a vehicle spare tire cover as described in claim 1, characterized in that, A lock hole protection plate is also installed on top of the reinforcing plate.
3. The table leg assembly system for a vehicle spare tire cover as described in claim 2, characterized in that, The protrusion at the end of the lock body is a pin that runs through the lock body.
4. The table leg assembly system for a vehicle spare tire cover as described in claim 1, characterized in that, The main body of the profile is a standard L-shaped profile.
5. The table leg assembly system for a vehicle spare tire cover as described in claim 1, characterized in that, The bottom of the table legs is equipped with a support plate that fits onto the main body of the profile.