Folding bed surface structure

Abstract

The utility model discloses a folding bed surface structure, which relates to the technical field of folding beds and comprises a head frame, a middle frame and a seat frame, first folding connecting arms which are rotatably connected are arranged among two sides of the head frame, two sides of the middle frame and two sides of the seat frame, and reinforcing cross rods are arranged in the middle of the middle frame and the middle of the seat frame. Second folding connecting arms used for being rotationally connected with the reinforcing cross rods are arranged at the positions, corresponding to the first folding connecting arms, in the middle frame and the seat frame, the second folding connecting arms and the first folding connecting arms are the same in structure and are correspondingly arranged, and folding transmission shafts of an integrated structure are fixed to the first folding connecting arms and the second folding connecting arms on the two sides in a penetrating mode. Supporting plates are arranged on the middle frame and the seat frame and located on the two sides of the reinforcing transverse rod in a clamped mode. The folding bed has a good supporting effect, the supporting strength of the folding bed surface can be greatly improved under the condition that folding of the folding bed surface is not affected, the situation that the middle of the folding bed surface sinks when the folding bed surface bears load is avoided, and the service life of the folding bed is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding beds, and particularly relates to a folding bed surface structure. Background Art

[0002] Due to the multi - purpose nature of the sofa bed, which can be used as a sofa and also as a bed, it is very popular. In the existing folding bed surface, a flat support plate or a woven net is generally used inside. When bearing weight, it will sink downward, resulting in a tensile force acting on the folding components on both sides of the folding bed in the horizontal direction. Due to the special structure of the folding components, their bearing capacity in the horizontal direction is weak. Over time, it is easy for the folding components to deform, making it impossible to fold and losing the folding function, which affects the service life of the folding sofa bed. Therefore, our company has designed and proposed a folding bed surface structure with high strength. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the shortcoming of insufficient support strength of the existing folding bed surface, and to propose a folding bed surface structure. This folding bed surface structure has a good supporting effect. Without affecting the folding of the folding bed surface, it can greatly improve the support strength of the folding bed surface, so that when the folding bed surface bears weight, the middle part will not sink, greatly extending the service life of the folding bed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a folding bed surface structure, including a head frame, a middle frame and a seat frame. There are first folding connecting arms rotatably connected between the two sides of the head frame, the middle frame and the seat frame. Reinforcing crossbars are provided in the middle parts of the middle frame and the seat frame. Second folding connecting arms for rotatably connecting the reinforcing crossbars are provided at positions corresponding to the first folding connecting arms in the middle frame and the seat frame. The second folding connecting arms have the same structure as the first folding connecting arms and are correspondingly arranged. Folding drive shafts with an integral structure are fixedly penetrated through the first folding connecting arms and the second folding connecting arms on both sides. Support plates are provided on both sides of the reinforcing crossbars in the middle frame and the seat frame in a clamping manner.

[0006] Further, a woven fixing plate rod is fixedly provided on one side of the head frame where it is located in the middle frame. A braided rope is wound between the woven fixing plate rod and the head frame to form a net - like head support net.

[0007] Further, the head frame, the middle frame and the seat frame are rotatably connected to the two ends of the first folding connecting arm in an embedded manner. The ends of the reinforcing crossbars are also rotatably connected to the ends of the second folding connecting arm in an embedded manner. After the folding bed surface is unfolded, under the limitation of the first folding connecting arm and the second folding connecting arm, the top surfaces of the head frame, the middle frame and the seat frame are in a horizontal state.

[0008] Further, a fixed seat for connecting the folding transmission shaft is fixedly provided below the first folding connecting arm and the second folding connecting arm.

[0009] Further, clamping joints are respectively fixedly provided at both ends of the support plate, and the clamping joints are fixed on the strengthening cross bar, the middle frame and the seat frame in a clamping manner, and the top surface of the support plate is flush with the top surfaces of the middle frame and the seat frame.

[0010] A folding bed surface structure proposed by the present utility model has the beneficial effects that: the present utility model has a good supporting effect, and without affecting the folding of the folding bed surface, it can greatly provide the supporting strength of the folding bed surface, so that when the folding bed surface bears weight, the middle part will not sag, and the service life of the folding bed surface is greatly prolonged. Description of the Drawings

[0011] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is the top view structural view of the present utility model;

[0013] Figure 2 is the side view of the present utility model;

[0014] The reference numerals in the drawings are: 1, head frame; 11, braided fixing plate rod; 12, braided rope; 2, middle frame; 3, seat frame; 4, first folding connecting arm; 5, strengthening cross bar; 6, second folding connecting arm; 7, support plate; 71, clamping joint; 8, folding transmission shaft; 81, fixed seat. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] Now, in combination with the accompanying drawings of the specification, the structural features of the present utility model will be described in detail.

[0019] See Figure 1 - Figure 2 , a folding bed surface structure, including a head frame 1, a middle frame 2, and a seat frame 3. There are first folding connecting arms 4 rotatably connected between the two sides of the head frame 1, the middle frame 2, and the seat frame 3. Among them, a woven fixing plate rod 11 is fixedly provided on one side of the head frame 1 where it is located relative to the middle frame 2. A braided rope 12 is wound between the woven fixing plate rod 11 and the head frame 1, forming a net-like structure of the head support net. Reinforcing crossbars 5 are provided in the middle parts of the middle frame 2 and the seat frame 3. Second folding connecting arms 6 for rotatably connecting the reinforcing crossbars 5 are provided at positions corresponding to the first folding connecting arms 4 inside the middle frame 2 and the seat frame 3. The second folding connecting arms 6 have the same structure as the first folding connecting arms 4 and are correspondingly arranged. The head frame 1, the middle frame 2, and the seat frame 3 are rotatably connected to the two ends of the first folding connecting arms 4 in an embedded manner. The ends of the reinforcing crossbars 5 are also rotatably connected to the ends of the second folding connecting arms 6 in an embedded manner. After the folding bed surface is unfolded, under the limitation of the first folding connecting arms 4 and the second folding connecting arms 6, the top surfaces of the head frame 1, the middle frame 2, and the seat frame 3 are in a horizontal state.

[0020] Folding drive shafts 8 with an integral structure are fixedly penetrated through the first folding connecting arms 4 and the second folding connecting arms 6 on both sides. Fixed seats 81 for connecting the folding drive shafts 8 are fixedly provided below the first folding connecting arms 4 and the second folding connecting arms 6.

[0021] The middle frame 2 and the seat frame 3 are located on both sides of the reinforcing cross bar 5, and support plates 7 are provided in a clamping manner. Clamping joints 71 are fixedly provided at both ends of the support plates 7, and the clamping joints 71 are fixedly connected to the reinforcing cross bar 5, the middle frame 2 and the seat frame 3 in a clamping manner. The top surface of the support plates 7 is flush with the top surfaces of the middle frame 2 and the seat frame 3.

[0022] For the folding bed surface structure of the present utility model, by providing the reinforcing cross bar 5 and the first folding connecting arm 4 and the second folding connecting arm 6 that can be folded synchronously, the folding bed surface structure has a good supporting effect. Without affecting the folding of the folding bed surface, the supporting strength of the folding bed surface can be greatly improved, so that when the folding bed surface bears weight, the middle part will not sag, and the service life of the folding bed is greatly extended.

[0023] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A folding bed structure, comprising a head frame (1), a middle frame (2) and a seat frame (3), characterized in that: A first folding connecting arm (4) is rotatably connected between the head frame (1), the middle frame (2) and the seat frame (3) on both sides; a reinforcing cross bar (5) is provided in the middle of the middle frame (2) and the seat frame (3); a second folding connecting arm (6) for rotatably connecting to the reinforcing cross bar (5) is provided at a position corresponding to the first folding connecting arm (4) in the middle frame (2) and the seat frame (3); the second folding connecting arm (6) has the same structure as the first folding connecting arm (4) and is correspondingly arranged; A folding transmission shaft (8) of an integral structure is passed through and fixed to the first folding connecting arm (4) and the second folding connecting arm (6) on both sides; The middle frame (2) and the seat frame (3) are provided with support plates (7) on both sides of the reinforcing cross bar (5) in a clamping manner.

2. A folding bed structure according to claim 1, characterized in that: The head frame (1) is fixedly provided with a braided fixing plate rod (11) on one side of the middle frame (2), and a braided rope (12) is coiled between the braided fixing plate rod (11) and the head frame (1), forming a head support net with a mesh structure.

3. The folding bed structure according to claim 1, characterized in that: The head frame (1), the middle frame (2) and the seat frame (3) are rotatably connected to the two ends of the first folding connecting arm (4) in an embedded manner, and the end of the reinforcing cross bar (5) is also rotatably connected to the end of the second folding connecting arm (6) in an embedded manner. After the folding bed surface is unfolded, under the limitation of the first folding connecting arm (4) and the second folding connecting arm (6), the top surfaces of the head frame (1), the middle frame (2) and the seat frame (3) are in a horizontal state.

4. The folding bed structure according to claim 1, characterized in that: A fixing seat (81) for connecting the folding transmission shaft (8) is fixedly provided below the first folding connecting arm (4) and the second folding connecting arm (6).

5. The folding bed structure according to claim 1, characterized in that: The two ends of the support plate (7) are respectively fixed with a clamping joint (71), and the clamping joint (71) is fixed to the reinforcing cross bar (5), the middle frame (2) and the seat frame (3) in a clamping manner. The top surface of the support plate (7) is flush with the top surfaces of the middle frame (2) and the seat frame (3).

Images