Foldable automobile sofa bed

Abstract

The utility model discloses a foldable automobile sofa bed which comprises a sofa bed mattress, and mattress stabilizing supports are arranged at the left position and the right position of the surface of the front side of the sofa bed mattress. The sofa bed mattress comprises a hollow mattress body, two grooves formed in the right side of the hollow mattress body and micro air pumps installed in inner cavities of the grooves and used for inflating the hollow mattress body, and a cavity allowing the hollow mattress body to contract or expand is formed in the hollow mattress body. According to the utility model, the hollow mattress design is adopted, inflation expansion and deflation contraction can be flexibly realized through the micro air pump, the hardness and size of the mattress can be adjusted according to different requirements, and the adaptability is strong; in the aspect of stability, the sliding rails in the mattress stabilizing bracket are matched with the T-shaped bolts, so that the bracket is firmly mounted; and the distance between the rubber pad and the inner side of the automobile rear row door frame can be adjusted through the combination of the drawing rod, the external threaded rod and the rubber pad, so that the sofa bed can be stably supported in various automobile rear row spaces, and the use safety is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of automotive sofa bed technology, specifically to a foldable automotive sofa bed. Background Technology

[0002] With the rapid development of the modern automotive industry and consumers' increasing pursuit of efficient use of car space and comfort, the design of car seats and accessories is constantly innovating and upgrading. Traditional car seats have relatively limited functions, making it difficult to meet the needs of consumers in various scenarios such as long-distance travel, outdoor camping, or temporary rest. Against this backdrop, foldable car sofa beds have emerged. They combine the dual functions of a sofa and a bed, achieving flexible space conversion through clever design. However, these car sofa beds suffer from issues of space adaptability and stability: the size and shape of the rear seats vary between different brands and models of cars, and existing foldable car sofa beds may not be able to fully fit all rear seats in terms of size and shape, potentially leading to instability or wasted space during installation or use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a foldable car sofa bed, thereby solving the problems mentioned in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A foldable car sofa bed includes a sofa bed mattress, wherein mattress stabilizing supports are provided on both the left and right sides of the front surface of the sofa bed mattress;

[0006] The sofa bed mattress includes a hollow mattress, two grooves on the right side of the hollow mattress, and a miniature air pump installed in the inner cavity of the grooves to inflate the hollow mattress. The hollow mattress has a chamber inside for the hollow mattress to contract or expand.

[0007] The mattress stabilizing support includes two slide rails fixed to the front surface of the hollow mattress, T-shaped pins inserted into the slide rails, and two hollow square tubes fixed to the front end face of the T-shaped pins. A pull rod is inserted into the bottom end of each hollow square tube, and an internal threaded sleeve is fixedly connected to the bottom end of each pull rod. An external threaded rod passes through the inside of the internal threaded sleeve, and rubber pads are rotatably connected to the opposite ends of the external threaded rods.

[0008] As a preferred embodiment of a foldable car sofa bed, the hollow mattress has a thin sponge layer fixed on both the upper and lower surfaces, and the outer surface of the thin sponge layer is covered with a perforated cover.

[0009] As a preferred embodiment of a foldable car sofa bed, the hollow mattress has a vent port installed on its left sidewall.

[0010] As a preferred embodiment of a foldable car sofa bed, the inner cavity of the groove is provided with an air inlet that communicates with the cavity, and the inflation nozzle of the micro air pump is fixed inside the air inlet. A sealing ring is provided between the inside of the air inlet and the inflation nozzle of the micro air pump.

[0011] As a preferred embodiment of a foldable car sofa bed, plugs are inserted into the right-side ports of the grooves.

[0012] As a preferred embodiment of a foldable car sofa bed, the slide rails are equipped with T-shaped slots for the horizontal insertion of T-shaped pins.

[0013] As a preferred embodiment of a foldable car sofa bed, the vertical cross-section of the T-shaped pin is T-shaped.

[0014] As a preferred embodiment of a foldable car sofa bed, fastening bolts are screwed through the front surface of the hollow square tube, and the ends of the fastening bolts located inside the hollow square tube are in close contact with the side wall of the pull rod located inside the hollow square tube.

[0015] As a preferred embodiment of a foldable car sofa bed, the end of the rubber pad furthest from the external threaded rod is in contact with the inside of the rear door frame of the car.

[0016] The beneficial effects of this utility model are:

[0017] (1) The foldable car sofa bed of this utility model adopts a hollow mattress design. It can flexibly realize inflation and deflation through a micro air pump. The firmness and size of the mattress can be adjusted according to different needs. It is highly applicable. In addition, the car sofa bed can be folded, making it easy to carry and use.

[0018] (2) The foldable car sofa bed of this utility model is made to be firmly installed by the cooperation of the slide rail and T-shaped pin in the mattress stabilizing bracket; by the combination of the inner threaded sleeve, the outer threaded rod and the rubber pad, the distance between the rubber pad and the inner side of the rear door frame of the car can be adjusted to ensure that the sofa bed can be stably supported in various rear spaces of the car, thus enhancing the safety of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the foldable car sofa bed described in this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the sofa bed mattress described in this utility model.

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the mattress stabilizing support described in this utility model.

[0023] In the picture:

[0024] 1. Sofa bed mattress; 11. Hollow mattress; 12. Miniature air pump; 13. End cap; 14. Groove; 15. Chamber; 2. Mattress stabilizing support; 21. Slide rail; 22. T-shaped pin; 23. Hollow square tube; 24. Fastening bolt; 25. Pull-out rod; 26. External threaded rod; 27. Internal threaded sleeve; 28. Rubber pad. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1:

[0030] like Figures 1 to 3 As shown, this embodiment provides a foldable car sofa bed, mainly composed of a sofa bed mattress 1 and a mattress stabilizing support 2. The sofa bed mattress 1 adopts a hollow mattress design 11, with a thin sponge layer fixed on both its upper and lower surfaces. The outer surface of the thin sponge layer is covered with a perforated cover, ensuring both comfort and good breathability. Simultaneously, two grooves 14 are provided on the right side of the hollow mattress 11. The inner cavity of the grooves 14 has an air inlet communicating with a chamber 15. A miniature air pump 12 is installed in the inner cavity of the grooves 14, with its inflation nozzle fixed inside the air inlet. A sealing ring is provided between the inside of the air inlet and the inflation nozzle of the miniature air pump 12 to prevent air leakage during inflation. When inflation is needed, the miniature air pump 12 operates, filling the chamber 15 with air, causing the hollow mattress 11 to expand. When deflation occurs, air is expelled through the deflation port installed on the left side wall of the hollow mattress 11, achieving mattress contraction. Furthermore, plugs 13 are inserted inside the right-side ports of the grooves 14 to prevent debris from entering.

[0031] The mattress stabilizing support 2 includes two slide rails 21 fixed to the front surface of the hollow mattress 11. Each slide rail 21 has a T-shaped slot for a T-shaped pin 22 to be inserted laterally. The T-shaped pin 22 has a T-shaped vertical cross-section, allowing it to be stably inserted into the slide rail 21. Two hollow square tubes 23 are fixed to the front end of the T-shaped pin 22. Each hollow square tube 23 has a fastening bolt 24 screwed through it on its front surface. By tightening the fastening bolts 24, the end of the fastening bolt 24 inside the hollow square tube 23 is in close contact with the side wall of the pull rod 25 inside the hollow square tube 23, thus fixing the position of the pull rod 25. The bottom end of the pull rod 25 is fixedly connected to an internal threaded sleeve 27. An external threaded rod 26 passes through the inside of the internal threaded sleeve 27. A rubber pad 28 is rotatably connected to each other at the opposite ends of the external threaded rod 26. The ends of the rubber pads 28 away from the external threaded rods 26 are in contact with the inside of the rear door frame of the car. By rotating the external threaded rod 26, the distance between the rubber pad 28 and the inside of the rear door frame of the car can be adjusted, thereby stably supporting the sofa bed.

[0032] Example 2:

[0033] Based on Embodiment 1, this foldable car sofa bed optimizes the mattress stabilizing bracket 2. Reinforcing ribs are added at the connection between the T-shaped pin 22 and the hollow square tube 23, improving the overall structural strength and making the sofa bed more stable during use. Simultaneously, an anti-slip texture is provided on the surface of the hollow square tube 23 for easy operation of the pull-out rod 25. When adjusting the sofa bed's position, the user can easily grasp the anti-slip textured hollow square tube 23 and, through the cooperation of the pull-out rod 25 and the external threaded rod 26, tightly press the rubber pad 28 against the inside of the rear door frame of the car, achieving stable support. The hollow mattress 11 of the sofa bed mattress 1 uses a special elastic material, allowing for smoother inflation and deflation while maintaining a good shape, improving the user experience.

[0034] Example 3:

[0035] Based on Embodiment 1, this foldable car sofa bed features improvements to the miniature air pump 12 in the mattress 1. A silent miniature air pump 12 is employed, reducing noise during inflation and minimizing disturbance to the user. A pressure sensor is also incorporated into the miniature air pump 12; when the air pressure in the chamber 15 reaches a set value, the miniature air pump 12 automatically stops operating to prevent over-inflation. Scale markings have been added to the threaded rod 26 of the mattress stabilizing bracket 2, allowing the user to accurately adjust the distance between the rubber pad 28 and the inside of the rear door frame of the car, resulting in more precise installation of the sofa bed. Furthermore, antibacterial fibers have been added to the thin sponge layer of the hollow mattress 11, improving the mattress's hygiene and providing a healthier user environment.

[0036] Example 4:

[0037] Based on Embodiment 1, this foldable car sofa bed features an innovative design for the air vent of the mattress 1. The air vent utilizes a rotary valve, allowing control over the air release speed and flow. For rapid air release, the valve is rotated to the wider opening position; for slow air release, it is rotated to the narrower opening position. The hollow square tube 23 of the mattress stabilizing bracket 2 is telescopic, allowing users to adjust its length according to the size of the rear seat space, thus better adapting the sofa bed to different car environments. Furthermore, anti-slip particles are applied to the surface of the rubber pad 28, increasing friction between the rubber pad 28 and the inner side of the rear door frame, further enhancing the sofa bed's stability.

[0038] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows:

[0039] When using this foldable car sofa bed, first remove the plug 13 to allow the miniature air pump 12 to come into contact with outside air. Then, turn on the switch of the miniature air pump 12, and it will start working, filling the chamber 15 with air through the air inlet that connects the inner cavity of the groove 14 to the chamber 15. As air is continuously added, the hollow mattress 11 gradually expands. During the inflation process, a pressure sensor is installed on the miniature air pump 12. When the air pressure in the chamber 15 reaches the set value, the miniature air pump 12 automatically stops working to prevent over-inflation. Alternatively, the miniature air pump 12 can be manually turned off according to the degree of mattress expansion to complete the inflation process, and then the plug 13 can be reinserted.

[0040] Next, insert the T-shaped pin 22 horizontally into the T-shaped slot inside the slide rail 21, ensuring the pin is fully inserted. At this point, the two hollow square tubes 23 on the front end of the T-shaped pin 22 are operable. The user can adjust the pull rod 25 according to the height of the rear seat so that the sofa bed mattress 1 can be placed on the rear seat. After adjusting the pull rod 25 to the appropriate position, tighten the fastening bolt 24 until the end of the fastening bolt 24 inside the hollow square tube 23 is in close contact with the side wall of the pull rod 25 inside the hollow square tube 23, thus fixing the position of the pull rod 25. Then, based on the distance to the inside of the rear door frame, rotate the external threaded rod 26 to gradually bring the rubber pad 28 closer to the inside of the rear door frame until the rubber pad 28 is tightly fitted to the inside of the door frame, providing stable support. At this point, the car sofa bed can be placed on the rear seat for use.

[0041] When the car sofa bed needs to be folded, the user first rotates the external threaded rod 26 to move the rubber pad 28 away from the inside of the door frame. Then, the user loosens the fastening bolt 24 on the hollow square tube 23, separating the end of the fastening bolt 24 inside the hollow square tube 23 from the side wall of the pull rod 25 inside the hollow square tube 23. Then, the pull rod 25 is retracted into the hollow square tube 23. The T-shaped pin 22 is then pulled out laterally from the T-shaped socket inside the slide rail 21, separating the mattress stabilizing bracket 2 from the sofa bed mattress 1.

[0042] Next, locate the air vent on the left side wall of the sofa bed mattress 1. If the air vent is a rotary valve, rotate it to the appropriate opening position to control the air release speed and flow. For rapid air release, rotate the valve to a larger opening position; for slow air release, rotate the valve to a smaller opening position. As the air in chamber 15 is expelled, the hollow mattress 11 gradually contracts. Once the mattress has fully contracted to the appropriate size, close the air vent.

[0043] Finally, organize the disassembled mattress stabilizer 2 components, such as placing the T-shaped pins 22 and pull rods 25 properly. Fold the retracted sofa bed mattress 1 to reduce space usage, and then store the entire car sofa bed in a suitable location for future use.

[0044] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A foldable car sofa bed, comprising a sofa bed mattress (1), characterized in that, The sofa bed mattress (1) has mattress stabilizing brackets (2) on both the left and right sides of the front surface; The sofa bed mattress (1) includes a hollow mattress (11), two grooves (14) on the right side of the hollow mattress (11), and a miniature air pump (12) installed in the inner cavity of the grooves (14) to inflate the hollow mattress (11). The hollow mattress (11) has a chamber (15) inside for the hollow mattress (11) to contract or expand. The mattress stabilizing bracket (2) includes two slide rails (21) fixed to the front surface of the hollow mattress (11), a T-shaped pin (22) inserted into the slide rail (21), and two hollow square tubes (23) fixed to the front end face of the T-shaped pin (22). A pull rod (25) is inserted into the bottom end of the hollow square tube (23). An internal threaded sleeve (27) is fixedly connected to the bottom end of the pull rod (25). An external threaded rod (26) passes through the inside of the internal threaded sleeve (27). A rubber pad (28) is rotatably connected to the opposite ends of the external threaded rods (26).

2. The foldable car sofa bed according to claim 1, characterized in that, The hollow mattress (11) has a thin sponge layer fixed on both the upper and lower surfaces, and the outer surface of the thin sponge layer is covered with a perforated skin.

3. The foldable car sofa bed according to claim 1, characterized in that, The hollow mattress (11) has an air vent installed on its left side wall.

4. The foldable car sofa bed according to claim 1, characterized in that, The inner cavity of the groove (14) is provided with an air inlet that communicates with the chamber (15), and the inflation nozzle of the micro air pump (12) is fixed inside the air inlet. A sealing ring is provided between the inside of the air inlet and the inflation nozzle of the micro air pump (12).

5. The foldable car sofa bed according to claim 1, characterized in that, A plug (13) is inserted into the right port of each groove (14).

6. The foldable car sofa bed according to claim 1, characterized in that, The slide rail (21) is provided with a T-shaped socket for the T-shaped pin (22) to be inserted laterally.

7. The foldable car sofa bed according to claim 1, characterized in that, The vertical cross-section of the T-shaped pin (22) is T-shaped.

8. The foldable car sofa bed according to claim 1, characterized in that, All the front surfaces of the hollow square tube (23) are screwed with fastening bolts (24), and the ends of the fastening bolts (24) inside the hollow square tube (23) are in close contact with the side wall of the pull rod (25) inside the hollow square tube (23).

9. The foldable car sofa bed according to claim 1, characterized in that, The end of the rubber pad (28) away from the external threaded rod (26) is in contact with the inside of the rear door frame of the car.

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