Storable mattress supporting device for motor caravan

By designing a retractable mattress support device, and utilizing a combination of folding frames and positioning components, the problem of insufficient mattress support structure length in recreational vehicles is solved. This allows for adjustment and storage of the support area, making it convenient for users to adjust comfort and preventing dust from entering.

CN223835498UActive Publication Date: 2026-01-27SHANDONG LADA AUTOMOBILE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520590009.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-01-27
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

The mattress support structure of existing recreational vehicles has a limited length, making it impossible to adjust the support area according to the user's needs, and it is also inconvenient to store, resulting in an uncomfortable and inconvenient lying space.

Method used

Design a retractable mattress support device, including a folding frame, mattress support components, protective components, and positioning components. Through telescopic lifting components and toothed engagement, the support plate can be adjusted and retracted, increasing the support area, and the protective components prevent dust from entering.

Benefits of technology

It allows for adjustment of the mattress support area according to usage needs, increasing lying comfort, and can be easily stored when not in use, protecting the support structure and preventing dust from entering.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a storable mattress supporting device for a motor caravan, which relates to the technical field of automobile spare parts and comprises a box body supporting assembly, a folding frame, a mattress supporting piece, a protective piece and two positioning pieces, and the mattress supporting piece is arranged in the folding frame. The beneficial effects of the utility model are that the top cover can be opened upwards through the two telescopic lifting pieces, and when the support plate is moved out of the bottom plate, the support plate can be moved to a plurality of different positions and fixed according to the use requirements through the cooperation of the plurality of teeth and the positioning blocks and under the elastic action of the reset springs, so that the use is convenient. The supporting plate is adjusted to the position where a user can lie comfortably, dust and other impurities can be prevented from entering the front side of the bottom plate through the protection part, the protection effect is achieved, the inclined plate is made of a soft material, and the user can lie more comfortably at the joint of the top of the front side of the bottom plate and the supporting plate.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a retractable mattress support device for recreational vehicles. Background Technology

[0002] RVs are designed to meet people's needs for travel, outdoor living, and work. They integrate "clothing, food, housing, and transportation" and are known as "mobile homes".

[0003] In recent years, recreational vehicles (RVs) have gained increasing popularity among outdoor enthusiasts due to their combined travel and living functions. As a vehicle specifically designed for travel and living, the interior space of an RV is meticulously planned to meet the accommodation needs of travelers. The roof box, as part of the RV's interior space, is designed to accommodate a mattress, thus adding extra sleeping area. When placing a mattress, a support structure is often added to the bottom of the mattress. Both the mattress and the support structure are located inside the roof box, supporting the bottom of the mattress to allow the user to lie down. However, the length of existing support structures is often limited, resulting in limited lying space. Since each user's height varies and the support area of ​​the mattress is limited, the inability to change the support area makes the lying space insufficient and uncomfortable. Furthermore, existing mattress support structures are not convenient for storage.

[0004] In view of the above problems, a retractable mattress support device for recreational vehicles is proposed to solve these problems. Utility Model Content

[0005] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] In view of the above-mentioned problems in the prior art, this utility model is proposed.

[0007] The purpose of this utility model is to provide a retractable mattress support device for recreational vehicles. The purpose is to provide a new type of mattress support device that can increase the support area of ​​the mattress according to the usage needs and is easy to store.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a retractable mattress support device for a recreational vehicle, the box support assembly of which includes a folding frame, a mattress support component, a protective component and two positioning components. The mattress support component is disposed inside the folding frame, the protective component is disposed at the bottom of the front side of the folding frame, and the two positioning components are symmetrically disposed on the front side of the folding frame. The folding frame includes a base plate, two telescopic lifting components and a top cover. The bottoms of the two telescopic lifting components are respectively installed on the left and right sides of the top of the base plate, and the tops of the two telescopic lifting components are respectively installed on the left and right sides of the bottom of the top cover. The two telescopic lifting components are symmetrically disposed.

[0009] The mattress support includes a support plate, a groove, and multiple teeth. The groove is formed inside the base plate. The surfaces of the support plate and the multiple teeth are slidably connected to the inside of the groove. The side of the multiple teeth closest to the support plate is fixedly connected to the support plate and is evenly distributed.

[0010] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, the support plate has multiple sliders fixedly connected to its bottom, which are evenly distributed. The surfaces of the multiple sliders are slidably connected with control grooves, which are all opened at the bottom of the sliding grooves and are evenly distributed. The protective component includes a protective plate and two fixing components. The opposite ends of the two fixing components are fixedly connected to the bottom of the left and right sides of the protective plate, respectively. The rear sides of the protective plate and the two fixing components are both attached to the front side of the base plate. Both fixing components can be fixed to the protective plate by bolts.

[0011] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, the positioning component includes a positioning block, a connecting plate, a return spring, and two limiting blocks. The surfaces of the positioning block, the connecting plate, and the two limiting blocks are all slidably connected to the interior of the base plate. The surfaces of the plurality of teeth can all be slidably connected to the surface of the positioning block. The left side of the positioning block is fixedly connected to the right side of the connecting plate. The left side of the connecting plate is fixedly connected to the right side of the return spring. The side of the return spring closest to the base plate is fixedly connected to the base plate. The right sides of the two limiting blocks are respectively fixedly connected to the front and rear sides of the left side of the connecting plate.

[0012] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, wherein: a mating plate is fixedly connected to the front side of the connecting plate, and a pull block is fixedly connected to the left side of the mating plate.

[0013] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, in which: protrusions are slidably connected to the rear sides of the left and right sides of the plurality of sliders, and the surfaces of the plurality of protrusions are slidably connected to the interior of the plurality of control grooves respectively.

[0014] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, the support plate has a groove on its front side, and an anti-slip pad is fixedly connected inside the groove.

[0015] As a preferred embodiment of the retractable mattress support device for recreational vehicles of this utility model, an inclined plate is fixedly connected to the top of the front side of the base plate, and the bottom of the inclined plate is in contact with the top of the support plate.

[0016] The beneficial effects of this utility model of a retractable mattress support device for recreational vehicles are as follows: Two telescopic lifting components allow the top cover to open upwards. When the support plate moves out from inside the base plate, the cooperation of multiple teeth and positioning blocks, along with the elastic action of the return spring, allows the support plate to be moved to multiple different positions and fixed according to usage needs, thereby changing the support area of ​​the mattress and adjusting the support plate to a comfortable position for the user. Protective components prevent dust and other impurities from entering the front interior of the base plate, providing protection. The inclined plate is made of soft material, making it more comfortable for the user to lie on the top of the front of the base plate where it connects to the support plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a folding diagram of the retractable mattress support device for recreational vehicles according to this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the dismantling protective component in this utility model.

[0020] Figure 3 This is a detailed three-dimensional schematic diagram of a part of the structure of this utility model.

[0021] Figure 4 In this utility model Figure 2 A partial schematic diagram of A in the middle.

[0022] Figure 5 In this utility model Figure 3 A partial schematic diagram of B in the diagram.

[0023] Figure 6 This is a three-dimensional structural diagram of the support plate in this utility model, viewed from below.

[0024] Figure 7This is a three-dimensional structural diagram of the front side of the base plate in this utility model. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Example 1

[0029] Reference Figures 1 to 7 This is the first embodiment of the present utility model, which provides a retractable mattress support device for a recreational vehicle. The box support assembly 100 includes a folding frame 101, a mattress support 102, a protective member 103, and two positioning members 104. The mattress support 102 is disposed inside the folding frame 101, the protective member 103 is disposed at the bottom of the front side of the folding frame 101, and the two positioning members 104 are symmetrically disposed on the front side of the folding frame 101. The folding frame 101 includes a base plate 101a, two telescopic lifting members 101b, and a top cover 101c. The bottoms of the two telescopic lifting members 101b are respectively installed on the left and right sides of the top of the base plate 101a, and the tops of the two telescopic lifting members 101b are respectively installed on the left and right sides of the bottom of the top cover 101c. The two telescopic lifting members 101b are symmetrically disposed.

[0030] The mattress support 102 includes a support plate 102a, a slide groove 102b, and a plurality of teeth 102c. The slide groove 102b is formed inside the base plate 101a. The surfaces of the support plate 102a and the plurality of teeth 102c are slidably connected to the interior of the slide groove 102b. The side of the plurality of teeth 102c closest to the support plate 102a is fixedly connected to the support plate 102a and is evenly distributed.

[0031] Furthermore, the bottom of the support plate 102a is fixedly connected to multiple sliders 102a-1, which are evenly distributed. The surfaces of the multiple sliders 102a-1 are slidably connected to control grooves 102a-2. The multiple control grooves 102a-2 are all opened at the bottom of the slide groove 102b and are evenly distributed. The protective component 103 includes a protective plate 103a and two fixing components 103b. The opposite ends of the two fixing components 103b are fixedly connected to the bottom of the left and right sides of the protective plate 103a, respectively. The rear sides of the protective plate 103a and the two fixing components 103b are both attached to the front side of the base plate 101a. Both fixing components 103b can be fixed to the protective plate 103a by bolts.

[0032] Furthermore, the positioning component 104 includes a positioning block 104a, a connecting plate 104b, a return spring 104c, and two limiting blocks 104d. The surfaces of the positioning block 104a, the connecting plate 104b, and the two limiting blocks 104d are all slidably connected to the interior of the base plate 101a. The surfaces of the multiple teeth 102c can all be slidably connected to the surface of the positioning block 104a. The left side of the positioning block 104a is fixedly connected to the right side of the connecting plate 104b. The left side of the connecting plate 104b is fixedly connected to the right side of the return spring 104c. The side of the return spring 104c closest to the base plate 101a is fixedly connected to the base plate 101a. The right sides of the two limiting blocks 104d are respectively fixedly connected to the front and rear sides of the left side of the connecting plate 104b.

[0033] Furthermore, a mating plate 104b-1 is fixedly connected to the front side of the connecting plate 104b, and a pull block 104b-2 is fixedly connected to the left side of the mating plate 104b-1.

[0034] Furthermore, protrusions 102a-3 are slidably connected to the rear sides of the left and right sides of the multiple sliders 102a-1, and the surfaces of the multiple protrusions 102a-3 are slidably connected to the interior of the multiple control grooves 102a-2 respectively.

[0035] Furthermore, a groove 102a-4 is provided on the front side of the support plate 102a, and an anti-slip pad 102a-5 is fixedly connected inside the groove 102a-4.

[0036] Furthermore, an inclined plate 101a-1 is fixedly connected to the top of the front side of the base plate 101a, and the bottom of the inclined plate 101a-1 is attached to the top of the support plate 102a.

[0037] When it is necessary to open the top cover 101c, move the top cover 101c upwards, and under the action of the two telescopic lifting parts 101b, it will be stretched open. When it is necessary to open and pull out the support plate 102a, first remove the bolts fixing the two fixing parts 103b to the base plate 101a, so that the two fixing parts 103b and the protective plate 103a can be separated from the base plate 101a. At this time, the user can place his hand inside the pull groove 102a-4, and through the contact between the anti-slip pad 102a-5 and the hand, pull the support plate 102a forward, so that the support plate 102a can be pulled out from the bottom plate 101a. The interior of the base plate 101a is moved out. When the support plate 102a is not in use, the support plate 102a is inserted into the interior of the base plate 101a. After the two fasteners 103b and the protective plate 103a are attached to the front side of the base plate 101a, the two fasteners 103b are fixed to the base plate 101a with bolts. The size of the sleeper in the carriage should be greater than or equal to 1750mm x 500mm (length x width). This is the standard length of 1750mm required for the sleeper in a motorhome. The bed board is folded outward to increase the length of the bed to meet the requirements of the automotive industry standard. The folding frame 101 can be installed inside the motorhome body.

[0038] In summary, by removing the two fasteners 103b and the protective plate 103a, the support plate 102a can be moved out of the interior of the base plate 101a. By connecting and installing the two fasteners 103b and the protective plate 103a to the base plate 101a, the front side of the support plate 102a can be protected, preventing dust and other impurities from entering the interior of the base plate 101a.

[0039] Example 2

[0040] Reference Figures 1 to 7This is the second embodiment of the present invention. Based on the previous embodiment, this embodiment further includes the following steps: When the support plate 102a is pulled out, multiple teeth 102c will engage with the positioning block 104a. During the movement of the multiple teeth 102c, they will compress the positioning block 104a, causing the positioning block 104a to move the connecting plate 104b and the two limiting blocks 104d away from the multiple teeth 102c. At the same time, it will also move the mating plate 104b-1 and the pulling block 104b-2. During the movement of the connecting plate 104b, the return spring 104c will deform, putting the return spring 104c into a compressed state. After the user pulls the support plate 102a to the desired position and stops pulling, under the elastic action of the return spring 104c, the connecting plate 104b will cause the two limiting blocks 104d and the positioning block 104a to spring back to their original positions, allowing the positioning block 104a to engage with the multiple teeth 102c, thereby... With the support plate 102a fixed, when it is necessary to push the support plate 102a into the interior of the base plate 101a, pulling the pull block 104b-2 causes the mating plate 104b-1 to move away from the multiple teeth 102c. The mating plate 104b-1 will then move the connecting plate 104b, the positioning block 104a, and the two limiting blocks 104d, causing the positioning block 104a to disengage from the multiple teeth 102c. At this time, the support plate 102a can then move the multiple teeth 102c. 2c is pushed into the interior of the base plate 101a to store the support plate 102a. The mattress is placed on top of the base plate 101a. The mattress can be foldable or made of multiple mattress blocks. When the support plate 102a is pulled out, the mattress can be distributed on top of the base plate 101a and the support plate 102a, providing more space for lying down. When storing, the support plate 102a is moved into the interior of the base plate 101a, and the mattress is arranged on top of the base plate 101a to save space.

[0041] In summary, the positioning block 104a, connecting plate 104b, mating plate 104b-1, and pull block 104b-2 can only move left or right via two limiting blocks 104d, which serve as limiting devices. The pull groove 102a-4 and anti-slip pad 102a-5 facilitate the user's pulling of the support plate 102a from inside the base plate 101a, thereby increasing the support area for the mattress. After the support plate 102a is pulled out, the positioning element 104 can limit its movement. To prevent the support plate 102a from moving automatically forward or backward, the inclined plate 101a-1 prevents the protrusion at the top front of the base plate 101a from causing discomfort to the user. By manually moving the positioning member 104 to the side away from the support plate 102a, the support plate 102a can be pushed into the interior of the base plate 101a. With the protection member 103, dust and other impurities can be prevented from entering the interior of the base plate 101a, and dust can be prevented from adhering to the surfaces of the support plate 102a and the positioning member 104.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A retractable mattress support device for recreational vehicles, characterized in that: include, The box support assembly (100) includes a folding frame (101), a mattress support (102), a protective component (103), and two positioning components (104). The mattress support (102) is disposed inside the folding frame (101), the protective component (103) is disposed at the bottom of the front side of the folding frame (101), and the two positioning components (104) are symmetrically disposed on the front side of the folding frame (101). The folding frame (101) includes a base plate (101a), two telescopic lifting components (101b), and a top cover (101c). The bottoms of the two telescopic lifting components (101b) are respectively installed on the left and right sides of the top of the base plate (101a), and the tops of the two telescopic lifting components (101b) are respectively installed on the left and right sides of the bottom of the top cover (101c). The two telescopic lifting components (101b) are symmetrically disposed. The mattress support member (102) includes a support plate (102a), a slide groove (102b), and a plurality of teeth (102c). The slide groove (102b) is formed inside the base plate (101a). The surfaces of the support plate (102a) and the plurality of teeth (102c) are slidably connected to the interior of the slide groove (102b). The side of the plurality of teeth (102c) closest to the support plate (102a) is fixedly connected to the support plate (102a) and is evenly distributed.

2. The retractable mattress support device for recreational vehicles as described in claim 1, characterized in that: The bottom of the support plate (102a) is fixedly connected to a plurality of sliders (102a-1) and they are evenly distributed. The surfaces of the plurality of sliders (102a-1) are slidably connected to control grooves (102a-2). The plurality of control grooves (102a-2) are all opened at the bottom of the slide groove (102b) and are evenly distributed. The protective component (103) includes a protective plate (103a) and two fixing components (103b). The opposite ends of the two fixing components (103b) are fixedly connected to the bottom of the left and right sides of the protective plate (103a). The rear sides of the protective plate (103a) and the two fixing components (103b) are both attached to the front side of the base plate (101a). Both fixing components (103b) can be fixed to the protective plate (103a) by bolts.

3. The retractable mattress support device for recreational vehicles as described in claim 2, characterized in that: The positioning component (104) includes a positioning block (104a), a connecting plate (104b), a return spring (104c), and two limiting blocks (104d). The surfaces of the positioning block (104a), the connecting plate (104b), and the two limiting blocks (104d) are all slidably connected to the interior of the base plate (101a). The surfaces of the plurality of teeth (102c) are all slidably connected to the surface of the positioning block (104a). The left side of the positioning block (104a) is fixedly connected to the right side of the connecting plate (104b). The left side of the connecting plate (104b) is fixedly connected to the right side of the return spring (104c). The side of the return spring (104c) closest to the base plate (101a) is fixedly connected to the base plate (101a). The right sides of the two limiting blocks (104d) are respectively fixedly connected to the front and rear sides of the left side of the connecting plate (104b).

4. The retractable mattress support device for recreational vehicles as described in claim 3, characterized in that: A mating plate (104b-1) is fixedly connected to the front side of the connecting plate (104b), and a pull block (104b-2) is fixedly connected to the left side of the mating plate (104b-1).

5. The retractable mattress support device for recreational vehicles as described in claim 2, characterized in that: Each of the multiple sliders (102a-1) has a protrusion (102a-3) slidably connected to the rear side of both sides, and the surfaces of the multiple protrusions (102a-3) are slidably connected to the interior of the multiple control grooves (102a-2).

6. The retractable mattress support device for recreational vehicles as described in claim 1, characterized in that: The front side of the support plate (102a) is provided with a groove (102a-4), and an anti-slip pad (102a-5) is fixedly connected inside the groove (102a-4).

7. The retractable mattress support device for recreational vehicles as described in claim 1, characterized in that: An inclined plate (101a-1) is fixedly connected to the top of the front side of the base plate (101a), and the bottom of the inclined plate (101a-1) is in contact with the top of the support plate (102a).