Sofa bed push-pull mechanism

Abstract

The utility model provides a sofa bed push-pull mechanism, and relates to the field of sofa beds. The sofa bed push-pull mechanism comprises a first bed board and a second bed board, a first bottom crosspiece is fixedly arranged at the bottom of the first bed board, a second bottom crosspiece is fixedly arranged at the bottom of the second bed board, the first bed board is in sliding connection with the second bed board, and a rear crosspiece is fixedly arranged on one side of the first bed board through screws. A left side baffle and a right side baffle are fixedly arranged on the two sides of the bed plate I through screws respectively. A front crosspiece is fixedly arranged on one side of the second bed board through screws. According to the sofa bed push-and-pull mechanism, through the arrangement of the rear crosspiece, the bottom crosspiece I, the bed board I, the left side crosspiece, the right side crosspiece, the front crosspiece, the bottom crosspiece II and the bed board II, the push-and-pull mechanism is relatively simple in component combination, convenient to prepare materials in the production process, convenient to operate and easy to understand for terminal consumers, and the market competitiveness of a sofa bed is enhanced.

Description

Technical Field

[0001] The utility model relates to a pushing and pulling mechanism, in particular to a pushing and pulling mechanism for a sofa bed, belonging to the technical field of sofa beds. Background Technique

[0002] A sofa bed refers to a piece of furniture that can be used as both a sofa and a bed. The modern layout of a living room advocates simplicity, and multi-functional furniture has increasingly become the choice of the public, and a sofa bed is one of them. In a small-sized living room, in order to meet the occasional accommodation needs of visitors, a sofa bed is very necessary.

[0003] After retrieval, a sofa bed disclosed in a Chinese patent with the publication number CN213216164U includes a fixed part, a stretching part and a backrest. The stretching part is slidably connected to the fixed part, the backrest is connected to the stretching part through a ratchet joint, and sliding wheels are respectively arranged on the sliding legs of the stretching part. The fixed part is provided with a guide rail, the stretching part is provided with a slideway, the slideway is connected with the guide rail in a matching manner, and a limit bolt is arranged outside the slideway, and the stretching is fixed at a certain position by the limit bolt. The sofa bed designed by the utility model can adjust the length in the length direction of the bed body and save indoor space.

[0004] Although the above scheme can adjust the length in the length direction of the bed body and save indoor space, the component combination of the sofa bed in the above patent is relatively complex, resulting in complex batching during the production process and prolonging the production time; for this reason, we provide a pushing and pulling mechanism for a sofa bed to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the present utility model is to provide a pushing and pulling mechanism for a sofa bed to solve the problem of relatively complex component combination in the above-mentioned comparative document.

[0007] (2) Technical Solutions

[0008] The present utility model is realized through the following technical solutions: a pushing and pulling mechanism for a sofa bed includes a first bed board and a second bed board. A bottom cross bar one is fixedly arranged at the bottom of the first bed board, a bottom cross bar two is fixedly arranged at the bottom of the second bed board, the first bed board is slidably connected to the second bed board, and a rear cross bar is fixedly arranged on one side of the first bed board through screws. The combination of components is relatively simple and convenient for production and use.

[0009] Preferably, a left side bar and a right side bar are respectively fixedly arranged on both sides of the first bed board through screws. The arrangement of the left side bar and the right side bar facilitates the limitation of other components and ensures the stability of other components.

[0010] Preferably, a front crossbar is fixedly arranged on one side of the second bed board through screws. The setting of the front crossbar facilitates the expansion and contraction of the push-pull mechanism.

[0011] Preferably, the second bed board slides in the wooden grooves opened in the left side rail and the right side rail through tenon-shaped guide rails. The setting of the second bed board ensures that the area of the sofa bed can be increased.

[0012] Preferably, both the first bed board and the second bed board are made of multi-layer boards with white ash veneer, which is more environmentally friendly and convenient for procurement.

[0013] The present utility model provides a push-pull mechanism for a sofa bed, and its beneficial effects are as follows:

[0014] 1. For this push-pull mechanism of the sofa bed, through the settings of the rear crossbar, the first bottom crossbar, the first bed board, the left side rail, the right side rail, the front crossbar, the second bottom crossbar, and the second bed board, the component combination of the push-pull mechanism is relatively simple, which is convenient for batching during the production process and is also easy to operate. For end consumers, it is easy to understand, enhancing the market competitiveness of the sofa bed. Description of the Drawings

[0015] Figure 1 is the overall exploded structural schematic diagram of the present utility model;

[0016] Figure 2 is the top axonometric view of the present utility model in the closed state;

[0017] Figure 3 is the bottom axonometric view of the present utility model in the closed state;

[0018] Figure 4 is the top axonometric view of the present utility model in the stretched state;

[0019] Figure 5 is the bottom axonometric view of the present utility model in the stretched state.

[0020]

Symbol Explanation of Main Components

[0021] 1. Rear crossbar; 2. First bottom crossbar; 3. First bed board; 4. Left side rail; 5. Right side rail; 6. Front crossbar; 7. Second bottom crossbar; 8. Second bed board. Detailed Embodiment

[0022] The embodiment of the present utility model provides a push-pull mechanism for a sofa bed.

[0023] Please refer to Figure 1 and Figure 2, including bed board 1-3 and bed board 2-8. Both bed board 1-3 and bed board 2-8 are made of multi-layer board with white ash veneer. The multi-layer board has good compressive resistance, is stable, not easy to deform or crack, has a relatively tough texture, and at the same time has strong waterproof performance. The price is economical and affordable. The design of the white ash veneer makes the surface very smooth, easy to clean, and convenient to maintain.

[0024] Please refer to Figure 4 and Figure 5 , bed board 2-8 slides in the wooden grooves opened on the left side rail 4 and the right side rail 5 through tenon-shaped guide rails. The settings of the left side rail 4 and the right side rail 5 can effectively limit bed board 2-8, ensuring its stability during movement and not easily getting stuck or tilted.

[0025] Please refer to Figure 4 and Figure 5 , a front cross bar 6 is fixedly arranged on one side of bed board 2-8 through screws. The setting of the front cross bar 6 is convenient for the user to pull bed board 2-8 to move, so that bed board 2-8 can be telescoped at any time.

[0026] Please refer to Figure 5 , a bottom cross bar 1-2 is fixedly arranged at the bottom of bed board 1-3. The setting of the bottom cross bar 1-2 can further strengthen the stability of bed board 1-3, prevent bed board 2-8 from tilting, and at the same time limit bed board 2-8 to prevent it from moving excessively and stop its continuous movement.

[0027] Please refer to Figure 4 and Figure 5 , the left side rail 4 and the right side rail 5 are respectively fixedly arranged on both sides of bed board 1-3 through screws. The settings of the left side rail 4 and the right side rail 5 can, while restricting bed board 2-8, be fixedly connected to the matching backrest and armrest frame through screws to form a complete sofa bed.

[0028] Please refer to Figure 4 and Figure 5 , a bottom cross bar 2-7 is fixedly arranged at the bottom of bed board 2-8. The setting of the bottom cross bar 2-7 can control the maximum movement range of bed board 2-8, cooperate with the bottom cross bar 1-2 to ensure the stability of bed board 2-8. Bed board 1-3 is slidably connected to bed board 2-8. A rear cross bar 1 is fixedly arranged on one side of bed board 1-3 through screws. The close cooperation between bed board 1-3 and bed board 2-8, through the design of its convex and concave grooves, can make the sofa bed occupy less space and make the sofa bed more practical.

[0029] Working principle: By pulling the front crossbar 6 with an external force to move, the first bed board 3 and the second bed board 8 are separated. At this time, the second bed board 8 slides between the left side bar 4 and the right side bar 5 through the tenon-shaped guide rail, driving the second bottom crossbar 7 to move accordingly. When the second bottom crossbar 7 contacts the first bottom crossbar 2, the first bottom crossbar 2 will prevent the second bottom crossbar 7 from moving, so that the second bed board 8 maintains the maximum stretching state, achieving the effect of convenient operation. At the same time, the structure is simple and easy to assemble.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A push-pull mechanism for a sofa bed, comprising a first bed board (3) and a second bed board (8), characterized in that: A bottom crossbar one (2) is fixedly arranged at the bottom of the first bed board (3). A bottom crossbar two (7) is fixedly arranged at the bottom of the second bed board (8). The first bed board (3) is slidably connected with the second bed board (8). A rear crossbar (1) is fixedly arranged on one side of the first bed board (3) by screws.

2. The push-pull mechanism of a sofa bed according to claim 1, wherein: Left side bars (4) and right side bars (5) are respectively fixedly arranged on both sides of the first bed board (3) by screws.

3. A push-pull mechanism for a sofa bed according to claim 1, characterized in that: A front crossbar (6) is fixedly arranged on one side of the second bed board (8) by screws.

4. A sofa bed push-pull mechanism according to claim 1, characterized in that: The second bed board (8) slides in the wooden grooves formed in the left side bar (4) and the right side bar (5) through a tenon-shaped guide rail.

5. The push-pull mechanism of a sofa bed according to claim 1, characterized in that: Both the first bed board (3) and the second bed board (8) are made of multi-layer boards with white ash veneer.

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