Combined telescopic sofa frame
By introducing the concave and convex matching structure of the guide plate and the guide groove into the sofa rack, the problem of collision and abnormal noise during the stretching process of the sofa rack is solved, and the plastic material injection molded by the injection molding mold avoids rust and deformation, and realizes the sofa The bed is stable, durable and versatile.
Patent Information
- Application Number
- CN202420959857.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The sofa racks of existing sofa beds are prone to collision and abnormal noise during the stretching process, and the iron material is prone to rust, and the wood material is easily deformed due to the weather, which causes the secondary bracket to not be pulled out.
A combined telescopic sofa frame is designed, by setting a guide plate and a guide groove between the main bracket, the first bracket and the second bracket, the telescopic movement is achieved using the concave and convex matching structure to avoid collision and abnormal noise, and the injection molded plastic is used to use an injection mold. Material to avoid rust and deformation.
The sofa frame is realized. The function of the bed can be realized after stretching, and the function of the sofa can be realized after shrinking. It is smooth when used, without rust or deforming, improving the durability of the sofa bed.
Smart Images
Figure CN222425689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a piece of furniture, in particular to a combined telescopic sofa frame. Background Art
[0002] Sofas and beds are commonly used furniture in modern homes. Sofas and beds need to occupy a certain amount of indoor space. In order to save indoor space and improve the utilization rate of furniture, sofa beds appear. Sofa beds can be converted between sofas and beds to ease the housing shortage and realize people's desire to use one room for two purposes or even multiple purposes. They are especially suitable for single apartments, rental houses, etc. At present, most sofa frames of sofa beds on the market are made of iron and wood. When using, the secondary bracket of the sofa frame is pulled out from the main bracket. Since there is no guide structure between the secondary bracket and the main bracket, there will be abnormal noise of collision during the pulling process. In addition, the material of iron is easy to rust, and the material of wood is easy to deform due to weather reasons, resulting in the secondary bracket cannot be pulled out. Utility Model Content
[0003] In view of the above problems, the utility model aims to provide a combined telescopic sofa frame, which has a novel and compact structure and can realize the function of a bed when stretched and the function of a sofa when retracted.
[0004] The technical scheme of the utility model is a combined telescopic sofa frame, comprising a main bracket, a first bracket and a second bracket, the left and right sides of the main bracket are fixed on the supporting side plates, a plurality of primary guide plates are arranged longitudinally on the upper side of the main bracket, all the primary guide plates are arranged at equal intervals in the transverse direction, a first guide groove is arranged longitudinally on the side of the primary guide plate, a plurality of secondary guide plates are arranged longitudinally on the upper side of the first bracket, guide convex strips matching with the first guide groove are extended from the two side surfaces of the secondary guide plate, two adjacent secondary guide plates are inserted into the first guide grooves on the inner sides of the two adjacent primary guide plates in front through the guide convex strips on the outer side as a group, a plurality of tertiary guide plates are arranged longitudinally on the upper side of the second bracket, second guide grooves are arranged longitudinally on the two side surfaces of the tertiary guide plate, the tertiary guide plate is inserted into the guide convex strips of the two secondary guide plates in the front group through the second guide grooves on both sides; the first bracket and the second bracket are both provided with supporting feet at the bottom, and the bottom height of the supporting feet corresponds to the bottom height of the supporting side plates; when retracted, each tertiary guide plate is inserted into the two secondary guide plates in the same group in front through concave-convex matching, and the two secondary guide plates in this group are inserted between the two primary guide plates in front through concave-convex matching.
[0005] Preferably, a first limiting column is provided at the bottom of the front end of the two left and right outermost secondary guide plates on the first bracket, and the first limiting column is lower than the surface of the main bracket to prevent the first bracket from being pulled backward and detached from the main bracket; a second limiting column is provided at the bottom of the front end of the two left and right outermost tertiary guide plates on the second bracket, and the second limiting column is lower than the surface of the first bracket to prevent the second bracket from being pulled backward and detached from the first bracket; an avoidance groove is provided on the main bracket directly in front of the second limiting column, and when the second bracket is pushed forward into the main bracket, the second limiting column enters the main bracket through the avoidance groove.
[0006] Preferably, two left and right supporting feet are provided at the rear end of the second bracket.
[0007] Preferably, three supporting feet, namely left, middle and right, are provided at the rear end of the first bracket.
[0008] Preferably, a supporting foot is respectively provided at the middle of the rear end and the middle of the front end of the main support.
[0009] Preferably, the main bracket, the first bracket and the second bracket are all made of plastic injection molding.
[0010] The utility model realizes the telescopic movement of the first bracket and the second bracket through the concave-convex matching structure, and the overall structure is stable and compact. It can realize the function of a bed after being stretched and the function of a sofa after being retracted. In addition, the sofa frame of the utility model is injection-molded by an injection mold, which is smooth when used, does not rust or deform, and makes the sofa bed more durable. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model after contraction;
[0012] Figure 2 for Figure 1 A schematic diagram of the structure when the second bracket is pulled out;
[0013] Figure 3 for Figure 1 A schematic diagram of the structure when the first bracket and the second bracket are pulled out;
[0014] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;
[0015] Among them: 1—main bracket; 11—first-level guide plate; 111—first guide groove; 12—avoidance groove; 2—first bracket; 21—secondary guide plate; 211—guide ridge; 22—first limiting column; 3—second bracket; 31—third-level guide plate; 311—second guide groove; 32—second limiting column; 4—support foot. DETAILED DESCRIPTION
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0017] like Figures 1 to 4 As shown, the utility model provides a combined telescopic sofa frame, including a main bracket 1, a first bracket 2 and a second bracket 3, the left and right sides of the main bracket 1 are fixed on the supporting side plates, a plurality of primary guide plates 11 are arranged longitudinally on the main bracket 1, all the primary guide plates 11 are arranged at equal intervals in the transverse direction, a first guide groove 111 is arranged longitudinally on the side of the primary guide plate 11, a plurality of secondary guide plates 21 are arranged longitudinally on the first bracket 2, guide ridges 211 matching the first guide grooves 111 are extended from both sides of the secondary guide plates 21, and two adjacent secondary guide plates 21 are inserted into the two adjacent primary guide plates 11 in front through the outer guide ridges 211 as a group. In the inner first guide groove 111, a plurality of three-level guide plates 31 are longitudinally arranged on the upper side of the second bracket 3, and second guide grooves 311 are longitudinally arranged on both sides of the three-level guide plate 31, and the three-level guide plate 31 is inserted into the guide ridges 211 of the two secondary guide plates 21 of the front group through the second guide grooves 311 on both sides; the first bracket 2 and the second bracket 3 are both provided with support feet 4 at the bottom, and the bottom height of the support feet 4 corresponds to the bottom height of the supporting side plate; when retracted, each three-level guide plate 31 is inserted into the two secondary guide plates 21 of the same group in front through a concave-convex fit, and this group of two secondary guide plates 21 is inserted between the two primary guide plates 11 in front through a concave-convex fit.
[0018] In the above scheme, a first limiting column 22 is provided at the bottom of the front end of the two left and right outermost secondary guide plates 21 on the first bracket 2, and the first limiting column 22 is lower than the surface of the main bracket 1 to prevent the first bracket 2 from being pulled backward and separated from the main bracket 1; a second limiting column 32 is provided at the bottom of the front end of the two left and right outermost tertiary guide plates 31 on the second bracket 3, and the second limiting column 32 is lower than the surface of the first bracket 2 to prevent the second bracket 3 from being pulled backward and separated from the first bracket 2; an avoidance groove 12 is provided on the main bracket 1 directly in front of the second limiting column 32, and when the second bracket 3 is pushed forward into the main bracket 1, the second limiting column 32 enters the main bracket 1 through the avoidance groove 12.
[0019] In addition, two left and right supporting feet 4 are provided at the rear end of the second bracket 3 .
[0020] In addition, the rear end of the first bracket 2 is provided with three supporting legs 4 on the left, middle and right sides.
[0021] Furthermore, a supporting foot 4 is respectively provided at the middle of the rear end and the middle of the front end of the main support 1 .
[0022] During use, the initial state is as follows Figure 1As shown in the figure (the left and right side panels are omitted in the figure), the sofa has side panels on the left and right sides and a backrest on the back side, and is used as a sofa. When it is needed to be used as a bed, the second bracket 3 is pulled outward, and when it is pulled into place, it is limited by the second limiting column 32 on the first bracket 2, as shown in the figure. Figure 2 Then continue to pull out, the second bracket 3 drives the first bracket 2 to be pulled out together, and after being pulled into place, the first limit column 22 blocks the main bracket to prevent the first bracket 2 from being pulled out backward and separated from the main bracket 1, as shown. Figure 3 and Figure 4 In this process, the avoidance groove 12 allows the second limiting column 32 to freely enter and exit. The operation is simple and the overall structure is stable and reliable.
[0023] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.
Claims
1. A combined telescopic sofa frame, characterized in that: The invention comprises a main bracket (1), a first bracket (2) and a second bracket (3), wherein the left and right sides of the main bracket (1) are fixed to the supporting side plates, a plurality of primary guide plates (11) are arranged longitudinally on the main bracket (1), all the primary guide plates (11) are arranged at equal intervals in the transverse direction, a first guide groove (111) is arranged longitudinally on the side surface of the primary guide plate (11), a plurality of secondary guide plates (21) are arranged longitudinally on the first bracket (2), and guide convex strips (21) matching with the first guide groove (111) are extended from both sides of the secondary guide plate (21). 11), two adjacent secondary guide plates (21) as a group are inserted into the first guide groove (111) on the inner side of two adjacent primary guide plates (11) in front through the outer guide ridges (211), a plurality of tertiary guide plates (31) are arranged longitudinally on the second bracket (3), and second guide grooves (311) are arranged longitudinally on both sides of the tertiary guide plates (31), and the tertiary guide plates (31) are inserted into the guide ridges (211) of the two secondary guide plates (21) in front through the second guide grooves (311) on both sides; the first bracket (2) and The second bracket (3) is provided with a support foot (4) at the bottom, and the bottom height of the support foot (4) corresponds to the bottom height of the support side plate; when retracted, each third-level guide plate (31) is inserted into the two second-level guide plates (21) of the same group in front through a concave-convex fit, and the two second-level guide plates (21) of the group are inserted between the two first-level guide plates (11) in front through a concave-convex fit; the front bottom of the two left and right outermost second-level guide plates (21) on the first bracket (2) is provided with a first limiting column (22), and the first limiting column (22) is lower than the surface of the main bracket (1) to prevent the first bracket (2) from being moved. A bracket (2) is pulled out backwards to be separated from the main bracket (1); a second limiting column (32) is provided at the bottom of the front end of the two third-level guide plates (31) on the left and right outermost sides of the second bracket (3); the second limiting column (32) is lower than the surface of the first bracket (2) to prevent the second bracket (3) from being pulled out backwards and separated from the first bracket (2); an avoidance groove (12) is provided on the main bracket (1) at a position directly in front of the second limiting column (32); when the second bracket (3) is pushed forward into the main bracket (1), the second limiting column (32) enters the main bracket (1) through the avoidance groove (12).
2. The combined telescopic sofa frame according to claim 1, characterized in that: The rear end of the second bracket (3) is provided with two left and right supporting feet (4).
3. The combined telescopic sofa frame according to claim 1, characterized in that: The rear end of the first bracket (2) is provided with three supporting legs (4) on the left, middle and right.
4. The combined telescopic sofa frame according to claim 1, characterized in that: A supporting foot (4) is respectively provided at the middle of the rear end and the middle of the front end of the main support (1).