A limiting piece for a sofa bed

Abstract

The utility model discloses a limiting piece for sofa bed. Among them, including: limiting piece body, limiting piece body detachably fixed in sofa bed body slide rail end, limiting piece body includes bottom plate, first side wall and at least two second side wall, first side wall and two second side wall fixedly arranged around bottom plate, form the half surrounding empty shell structure, the opposite position of first side wall is equipped with the opening of the pulley of adaptation pull -out bed board's going in and out, and the opposite position of bottom plate forms the hollow part, one end of two second side wall near the opening respectively extends to the outside arc line, forms the guide portion to guide pulley to enter limiting piece body, through the structural design of limiting piece body, including bottom plate, first side wall, second side wall and guide portion, formed a half surrounding empty shell space, provided stable limiting environment for pulley. Thus avoid the sudden slide of bed board and other potential safety hazards caused by pulley derailment.

Description

Technical Field

[0001] This utility model relates to the field of limiting components, and in particular to a limiting component for a sofa bed. Background Technology

[0002] Sofa beds, as a type of furniture that combines the functions of a sofa and a bed, have been widely used in modern home life due to their space-saving and flexible use. Existing sofa beds typically consist of a frame and a pull-out bed panel. The bed panel is pulled out via casters that engage with rails on the frame, allowing it to be converted between sofa and bed modes.

[0003] However, sofa beds currently on the market pose certain safety hazards during use. When the pulleys of the pull-out bed board slide to the end of the track, due to the lack of effective limiting measures, the pulleys may slip out of the track, causing the pull-out bed board to be unable to remain stably in the desired position. This not only affects the normal use of the sofa bed and reduces the user experience, but may also cause safety problems, such as the bed board suddenly slipping and causing personal injury or damage to property.

[0004] To address this issue, some sofa beds have adopted a simple blocking structure at the end of the slide rail. However, these structures often suffer from drawbacks such as inconvenient installation, poor limiting effect, or difficulty in pulling out, and thus cannot effectively meet actual usage needs. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a limiting component for sofa beds, which can effectively solve the problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] According to one aspect of the present invention, the invention includes: a limiting member body, the limiting member body being detachably fixed to the end of the slide rail of the sofa bed body, the limiting member body including a base plate, a first side panel and at least two second side panels, the first side panel and the two second side panels being fixed around the base plate to form a semi-enclosed hollow shell structure, an opening for a pulley to enter and exit the first side panel at the opposite position, and a hollow portion formed at the opposite position of the base plate; the ends of the two second side panels near the openings extend outward in an arc to form guide portions to guide the pulleys into the limiting member body.

[0008] Furthermore, the two second side panels are symmetrically and mirror-imagely fixed to the base plate, and the ends of the two second side panels near the opening gradually extend outward smoothly, making the opening narrower inside and wider outside.

[0009] Furthermore, the bottom plate has a sloping surface that is higher on the inside and lower on the outside at the end near the opening.

[0010] Furthermore, the base plate is provided with at least one fixing hole.

[0011] Furthermore, the outer edge of the limiting member body is provided with a rounded corner transition.

[0012] Furthermore, the base plate, the first side panel, and the two second side panels are integrally formed.

[0013] Furthermore, the body of the limiting component is made of nylon.

[0014] Furthermore, at least one positioning rib is provided at one end of the base plate extending toward the sofa bed body, and a positioning groove is correspondingly provided on the outer side of the sofa bed body, with the positioning rib and the positioning groove being interference fit.

[0015] Furthermore, the positioning rib is located in the middle of the base plate, and the positioning rib avoids the fixing hole.

[0016] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0017] Firstly, the structural design of the limiting component, including the base plate, first side panel, second side panel, and guide section, forms a semi-enclosed hollow space, providing a stable limiting environment for the pulleys. The converging design of the opening helps guide the pulleys accurately into the limiting component, preventing them from coming off at the end of the slide rail. This avoids safety hazards such as the bed board suddenly slipping due to pulley derailment, effectively improving the stability and safety of the sofa bed when changing positions.

[0018] Secondly, the opening has a converging design that is narrower on the inside and wider on the outside, which allows the pulley to enter the opening more smoothly when it approaches the limiting component. After entering, it is constrained by the second side panels on both sides, which further enhances the limiting effect.

[0019] Thirdly, the sloping surface design of the base plate near the opening, with an inner higher slope and an outer lower slope, provides a gradually transitioning guide surface for the pulleys to enter the limiting component. When the pulleys slide towards the opening, the sloping surface reduces the collision and friction between the pulleys and the limiting component, allowing the pulleys to transition more smoothly onto the track inside the limiting component. This reduces noise, extends the service life of the limiting component and the pulleys, and improves the smoothness of the sofa bed's pull-out process and the user experience.

[0020] Fourth, the fixing holes on the base plate provide a reliable way to install and secure the limiting components. By connecting the components to the sofa bed body through these fixing holes using screws or other fasteners, the stability of the limiting components during use is ensured, preventing loosening or displacement. This not only enhances the installation firmness of the limiting components but also facilitates quick disassembly when maintenance or replacement is needed, improving the convenience of sofa bed maintenance.

[0021] Fifth, the rounded corner design of the outer edge of the limiting component eliminates sharp edges, preventing users from being scratched or bumped during use of the sofa bed and improving product safety.

[0022] Sixth, the integrated molding structure of the base plate, first side panel, and second side panel greatly enhances the overall structural strength and stability of the limiting component. When subjected to the impact of the pulley and long-term wear, the integrated molding structure effectively prevents limiting failure caused by loosening or detachment of the components. Furthermore, the integrated molding process simplifies the manufacturing process, reduces production costs, and improves production efficiency.

[0023] Seventh, nylon is lightweight, making it easy to install and move without increasing the overall weight of the sofa bed. At the same time, nylon has excellent wear and corrosion resistance, able to withstand long-term friction from the pulleys and various corrosive factors in the environment, ensuring that the limiting components maintain good performance for a longer period and extending their service life. Furthermore, nylon material has a certain degree of toughness, allowing it to elastically deform under impact without easily being damaged, further improving the reliability and safety of the limiting components.

[0024] Eighth, the positioning ribs extending from one end of the base plate are interference-fitted with the positioning grooves on the sofa bed body, allowing for quick and accurate positioning when installing the limiting components, thus improving installation efficiency. The positioning ribs also prevent displacement of the limiting components after installation, enhancing their installation stability. This positioning method, combined with the fixing holes, forms a double-fixing guarantee, ensuring the limiting components are more securely and reliably installed at the end of the slide rail.

[0025] Ninth, the positioning ribs are located in the middle of the base plate, and the positioning ribs avoid the fixing holes. This ensures that the fixing holes can be used normally, and also ensures the structural strength of the limiting component body. Attached Figure Description

[0026] 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 drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the limiting member body in this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the planar structure of the limiting member body in this utility model. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the limiting member body in this utility model. Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the planar structure of the limiting member body in this utility model. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the structure of the limiting member body installed on the sofa bed body in this utility model. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the structure of the limiting member body installed on the sofa bed body in this utility model. Figure 2 ;

[0033] Figure 7 This is a schematic diagram of the structure of the limiting member body installed on the sofa bed body in this utility model. Figure 3 ;

[0034] In the diagram: Limiting component body-100, base plate-1, opening-10, fixing hole-11, ramp surface-12, hollow part-13, first side panel-2, second side panel-3, guide part-31, positioning rib-4, sofa bed body-200, pull-out bed board-201, pulley-2011, slide rail-202. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0036] like Figures 1 to 7 As shown, this solution provides a limiting component for a sofa bed.

[0037] Please see Figures 1 to 7 The sofa bed body 200 includes a limiting member body 100, preferably made of nylon, which effectively reduces weight and has good wear resistance and corrosion resistance. The limiting member body 100 is detachably fixed to the end of the slide rail 202 of the sofa bed body 200.

[0038] The limiting member body 100 includes a base plate 1, a first side panel 2, and at least two second side panels 3. The first side panel 2 and the two second side panels 3 are fixed around the base plate 1, forming a semi-enclosed hollow structure. This design not only effectively fixes the pulley 2011 but also reduces material usage and lowers costs. An opening 10 is provided opposite the first side panel 2 to accommodate the pulley 2011 entering and exiting the pulley of the pulley bed board 201. A hollow portion 13 is formed opposite the base plate 1; the hollow portion 13 is used to avoid the pulley 2011. The ends of the two second side panels 3 near the opening 10 extend outward in an arc to form guide portions 31, guiding the pulley 2011 into the limiting member body 100. These guide portions 31 guide the pulley 2011 smoothly into the limiting member body 100, effectively preventing the pulley 2011 from getting stuck or shifting when entering the limiting member body 100. Specifically, the two second side panels 3 are symmetrically and mirror-imagely fixed to the base plate 1, and the ends of the two second side panels 3 near the opening 10 extend smoothly outwards, making the opening 10 have a converging shape that is narrower inside and wider outside. In this embodiment, the base plate 1, the first side panel 2, and the two second side panels 3 are integrally formed.

[0039] Please see Figure 1 and Figure 2 The bottom plate 1 has a sloping surface 12 with a higher inner surface and a lower outer surface at one end near the opening 10. The design of the sloping surface 12 can guide the pulley 2011 to enter the limiting member body 100 more smoothly, reduce the friction and collision between the pulley 2011 and the limiting member body 100, thereby extending the service life of the limiting member body 100.

[0040] Please see Figure 1 and Figure 2 The base plate 1 is provided with at least one fixing hole 11. In this embodiment, there are two fixing holes 11, which are spaced apart on the base plate 1. The fixing holes 11 are used to firmly fix the limiting member body 100 to the end of the slide rail 202 of the sofa bed body 200, so as to ensure that the limiting member body 100 will not loosen or shift during use.

[0041] Please see Figure 1 and Figure 2 The outer edge of the limiting member body 100 is rounded to prevent the user from being scratched by sharp corners during use, and to further improve the smooth sliding of the pulley 2011 into the limiting member body 100.

[0042] Please see Figure 3 and Figure 4At least one positioning rib 4 extends from one end of the base plate 1 toward the sofa bed body 200, and a corresponding positioning groove (not shown) is provided on the outer side of the sofa bed body 200. The positioning rib 4 and the positioning groove are interference-fitted. Through the cooperation of the positioning rib 4 and the positioning groove, the limiting component body 100 can be quickly and accurately positioned at the end of the slide rail 202, improving installation efficiency. Specifically, the positioning rib 4 is located in the middle of the base plate 1, and the positioning rib 4 avoids the fixing hole 11. This ensures that the fixing hole 11 can be used normally, and also ensures the structural strength of the limiting component body 100.

[0043] The sofa bed body 200, pull-out bed board 201, casters 2011 and slide rail 202 are all direct applications of existing technology, and their structure and working principle will not be described in detail here.

[0044] Working principle:

[0045] When installing the limiting component body 100, insert the positioning rib 4 of the base plate 1 into the positioning groove of the sofa bed body 200. The positioning rib 4 fits tightly into the positioning groove of the sofa bed body 200. Screws (not shown) are then passed through the fixing holes 11 to securely lock the limiting component body 100, thereby preventing the pulleys from derailing and ensuring the bed board unfolds stably. The limiting component body 100 needs to be installed at the ends of the slide rails 202 on both the left and right sides of the sofa bed body 200.

[0046] When the pull-out bed board 201 is unfolded, the pulley 2011 slides along the slide rail 202 to the end and first contacts the guide part 31. Guided by the guide part 31 and the ramp surface 12, the pulley 2011 smoothly slides into the interior of the limiting member body 100.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A limiting member for a sofa bed, comprising: The limiting component body (100) is detachably fixed to the end of the slide rail (202) of the sofa bed body (200). The limiting component body (100) includes a base plate (1), a first side panel (2) and at least two second side panels (3). The first side panel (2) and the two second side panels (3) are fixed around the base plate (1) to form a semi-enclosed hollow structure. An opening (10) for the pulley (2011) of the pulley board (201) to enter and exit is provided on the opposite side of the first side panel (2). A hollow part (13) is formed on the opposite side of the base plate (1). The two second side panels (3) extend outward in an arc at the end near the opening (10) to form a guide part (31) to guide the pulley (2011) into the limiting component body (100).

2. A limiting member for a sofa bed as described in claim 1, characterized in that, The two second side panels (3) are symmetrically and mirror-fixed to the base plate (1), and the two second side panels (3) extend smoothly outward from the end near the opening (10), so that the opening (10) is narrow inside and wide outside.

3. A limiting member for a sofa bed as described in claim 1, characterized in that, The bottom plate (1) has a sloping surface (12) that is higher on the inside and lower on the outside at one end near the opening (10).

4. A limiting member for a sofa bed as described in claim 1, characterized in that, The base plate (1) is provided with at least one fixing hole (11).

5. A limiting member for a sofa bed as described in claim 1, characterized in that, The outer edge of the limiting member body (100) is provided with a rounded corner transition.

6. A limiting member for a sofa bed as described in claim 1, characterized in that, The base plate (1), the first side panel (2), and the two second side panels (3) are integrally formed.

7. A limiting member for a sofa bed as described in claim 1 or 6, characterized in that, The limiting component body (100) is made of nylon.

8. A limiting member for a sofa bed as described in claim 1, characterized in that, At least one positioning rib (4) is provided on one end of the base plate (1) extending toward the sofa bed body (200), and a positioning groove is provided on the outer side of the sofa bed body (200) accordingly. The positioning rib (4) is interference-fitted with the positioning groove.

9. A limiting member for a sofa bed as described in claim 8, characterized in that, The positioning rib (4) is located in the middle of the base plate (1), and the positioning rib (4) avoids the fixing hole (11).

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