High-safety broaching bed sofa

Abstract

The utility model relates to the technical field of furniture, and discloses a high-safety broaching bed sofa. Comprising a sofa body and further comprises a movable mattress, the movable mattress comprises a fixed plate arranged on the ground, an elastic cushion is connected to the upper portion of the fixed plate through an elastic device, a whole wood plate is arranged in the elastic cushion, the elastic device is provided with a limiting hole, and a limiting column can be inserted into the limiting hole. The strength of the broaching bed sofa can be greatly improved through the elastic cushion internally provided with the whole wood plate, and enough strength support can be provided for large-weight people. An elastic device is arranged between the fixing plate and the elastic cushion, the elastic cushion and the seat cushion can be located on the same horizontal plane when the elastic device is in a completely stretched state, and the limiting columns are inserted into the limiting holes at the moment, so that the elastic device is locked to ensure that the elastic cushion is not subjected to force in the vertical direction, and the stability of the broaching bed sofa is improved; therefore, the broaching bed sofa can be safely used.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a high-safety pull-out sofa. Background Art

[0002] A pull-out sofa is a piece of furniture that can switch between two modes: a sofa and a bed. This significantly reduces floor space when not needed for sleeping, while also providing convenience for guests who need to stay overnight. Currently, the typical method of converting a sofa into a bed is to pull out a drawer, extending the seat to create a larger area for lying or sitting.

[0003] In view of the above description, the applicant believes that the following problems exist:

[0004] During use, the prior art pulls away part of the seat plate area of the sofa, resulting in a reduction in the load-bearing area of the pull-out sofa. Long-term use can easily cause damage to the pull-out sofa. Therefore, it is necessary to improve a high-safety pull-out sofa to solve the above problem. Utility Model Content

[0005] In order to overcome the problem that the bearing area of the pull-out sofa is reduced and the pull-out sofa is easily damaged due to long-term use.

[0006] The technical solution of the utility model is: a high-safety pull-out sofa, comprising a sofa body and a movable mattress, wherein the movable mattress comprises a fixed plate placed on the ground, an elastic pad is connected to the upper portion of the fixed plate via an elastic device, a whole wooden board is arranged inside the elastic pad, and the elastic device is provided with a limiting hole, into which a limiting column can be inserted.

[0007] Preferably, a built-in elastic pad made of a single piece of wood significantly increases the strength of the pull-out sofa, providing sufficient support even for heavier users, thereby eliminating the risk of wooden strips breaking in traditional pull-out sofas. An elastic device is provided between the fixing plate and the elastic pad. Specifically, the elastic device uses internal springs to provide elastic support to the elastic pad. When the elastic device is fully extended, the elastic pad is aligned with the seat cushion. At this point, a stopper is inserted into the stopper hole, locking the elastic device and protecting the elastic pad from vertical forces. This increases the stability of the pull-out sofa, ensuring safe use.

[0008] Preferably, the sofa body includes a seat cushion, armrests, and a backrest. A sliding plate is provided on the bottom of the elastic cushion near the backrest, a stopper is provided on the side of the sliding plate away from the ground, and a stopper groove is provided on the side of the seat cushion near the ground, into which the stopper can be inserted. The stopper groove and the stopper block cooperate to constrain the stopper block within the stopper groove, thereby facilitating the stability of the pull-out sofa when unfolded into a bed.

[0009] Preferably, a slide groove is provided on the side of the seat cushion close to the ground, and the limit block can slide in the slide groove. By providing the limit block with a slide groove, the limit block's running trajectory is controlled, so that the limit block will not deviate arbitrarily and the limit block can be easily ejected into the limit groove.

[0010] Preferably, the fixed plate contacts the ground via rollers. By arranging the rollers at the bottom of the fixed plate, the sliding friction of the movable mattress relative to the ground is converted into rolling friction, thereby increasing the smoothness of the movable mattress movement and reducing friction noise.

[0011] Preferably, the roller can only roll along the length direction perpendicular to the backrest block. By arranging the roller to only move along the direction perpendicular to the backrest block, the limiting block can perform secondary positioning on the limiting groove, which is convenient for user operation.

[0012] Preferably, the limiting column is a T-shaped structure, and a movable column is hingedly connected to one side of the limiting column that can be inserted into the limiting hole. The hinged movable column makes it difficult for the limiting column to fall out of the limiting hole.

[0013] As an advantage, a side of the fixing plate away from the ground is provided with a receiving groove for receiving the limiting column. The limiting column is placed in the receiving groove so that the limiting column is not easily lost.

[0014] Beneficial effects of the utility model:

[0015] 1. The built-in elastic pad, constructed entirely of wood, significantly increases the strength of the pull-out sofa, providing sufficient support even for heavier users and eliminating the risk of wooden strips breaking in traditional pull-out sofas. An elastic device is installed between the fixing plate and the elastic pad. The specific structure of the elastic device is that the elastic device uses internal springs to provide elastic support to the elastic pad. When the elastic device is fully extended, the elastic pad is aligned with the seat cushion. At this time, a stopper is inserted into the stopper hole, locking the elastic device and protecting the elastic pad from vertical forces. This increases the stability of the pull-out sofa, ensuring safe use.

[0016] 2. By cooperating with the limiting groove and the limiting block, the limiting block is restricted in the limiting groove, which is beneficial to the stability of the pull-out sofa when it is unfolded into a bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle Ⅰ area;

[0019] Figure 3 For this utility model Figure 1 A partial enlarged view of the middle II area;

[0020] Figure 4 This is a schematic diagram of the matching structure of the slide and the limit block of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the limit column of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the accommodating tank of the utility model;

[0023] Figure 7 This is a schematic diagram of the working mode of the utility model;

[0024] Figure 8 This is a schematic diagram of the internal structure of the elastic device of the utility model.

[0025] Explanation of the accompanying drawings: 1-sofa body, 11-seat cushion, 111-limiting groove, 112-slide groove, 12-armrest block, 13-backrest block, 2-movable mattress, 21-fixing plate, 211-roller, 212-accommodating groove, 22-elastic device, 221-limiting hole, 222-spring, 23-elastic pad, 231-sliding plate, 232-limiting block, 3-limiting column, 31-movable column, 4-ground. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-8 As shown,

[0028] See also Figure 1-Figure 3The present utility model provides an embodiment: a high-safety pull-out sofa, comprising a sofa body 1, and also comprising a movable mattress 2, the movable mattress 2 comprising a fixed plate 21 placed on the ground 4, an elastic pad 23 being connected above the fixed plate 21 via an elastic device 22, a whole wooden board being provided inside the elastic pad 23, the elastic device 22 being provided with a limiting hole 221, a limiting column 3 being able to be inserted into the limiting hole 221. By having an elastic pad 23 with a whole wooden board built in, the strength of the pull-out sofa can be greatly increased, and sufficient strength support can be provided even for people of large weight, thereby eliminating the risk of wooden strips breaking in traditional pull-out sofas. An elastic device 22 is provided between the fixed plate 21 and the elastic pad 23. For the specific structure of the elastic device 22, please refer to Figure 8 The elastic device 22 provides elastic support to the elastic pad 23 through the internal spring 222. When the elastic device 22 is in a fully expanded state, the elastic pad 23 can be at the same level as the seat cushion 11. At this time, the limiting column 3 is inserted into the limiting hole 221. In this way, by locking the elastic device 22, the elastic pad 23 is ensured not to be affected by vertical forces, thereby increasing the stability of the pull-out sofa and making the pull-out sofa safe to use.

[0029] See also Figure 4 In this embodiment, the sofa body 1 includes a seat cushion 11, an armrest block 12, and a backrest block 13. A sliding plate 231 is provided on the bottom of the elastic cushion 23, near the backrest block 13. A stop block 232 is provided on the side of the sliding plate 231 facing away from the ground 4. A stop groove 111 is provided on the side of the seat cushion 11 near the ground 4, and the stop block 232 is insertable into the stop groove 111. When the stop block 232 is inserted into the stop groove 111, it securely connects the sofa body 1 and the movable mattress 2. At the same time, one side of the movable mattress 2 is in close contact with the other side of the sofa body, thereby preventing the movable mattress 2 from swinging relative to the sofa body 1. Even larger users sleeping between the sofa body 1 and the movable mattress 2 will not fall to the ground, greatly improving the safety of the pull-out sofa.

[0030] See also Figure 4 In this embodiment, a slide groove 112 is provided on the side of the seat cushion 11 close to the ground 4, and the limit block 232 can slide in the slide groove 112. By sliding the limit block 232 in the slide groove 112, the time required for the limit block 232 to align with the limit groove 111 can be reduced, thereby increasing the convenience of using the pull-out sofa.

[0031] See also Figure 4 In this embodiment, the fixed plate 21 is in contact with the ground 4 via rollers 211. In order to reduce the damage to the wooden floor of the home caused by the pull-out sofa and reduce the huge noise generated by the movable mattress 2, it is preferred to install rollers 211 under the fixed plate 21.

[0032] See also Figure 4 In this embodiment, the roller 211 can only roll in a direction perpendicular to the length of the backrest block 13. In order to increase the alignment accuracy between the limit block 232 and the limit groove 111, the roller 211 below the fixed plate 21 is preferably a fixed roller that can only roll in a direction perpendicular to the backrest block 13 and cannot be adjusted in direction.

[0033] See also Figure 5 In this embodiment, the limiting column 3 is a "T"-shaped structure, and a movable column 31 is hinged on one side of the limiting column 3 that can be inserted into the limiting hole 221. During the long-term use of the pull-out sofa, the limiting column 3 without a locking function will directly fall off the limiting hole 221. If the user does not check it regularly, there is a high possibility that the user will fall off the pull-out sofa. In order to solve the above problem, a movable column 31 is hinged on the side of the limiting column 3 that can be inserted into the limiting hole 221. The hinged movable column 31 will droop under the action of gravity. Please refer to Figure 2 The movable column 31 drooping due to gravity can effectively prevent the limiting column 3 from falling off from the limiting hole 221 during long-term use, causing personal injury.

[0034] See also Figure 6 In this embodiment, a receiving groove 212 for receiving the limiting column 3 is provided on the side of the fixing plate 21 away from the ground 4. In order to prevent the limiting column 3 from being lost, the receiving groove 212 is provided on the fixing plate 21.

[0035] When working, please refer to Figure 7 The pull-out sofa shown in the figure changes from a sofa state to a bed state in the direction of the arrow. The user can pull the movable mattress 2 out of the sofa body 1. During the pulling process, the limit block 232 slides in the slide groove 112, and the roller 211 also rolls on the ground 4. When the user hears a "click" sound or sees the elastic pad 23 bounce up, it means that the movable mattress 2 has been pulled into place. After the elastic device 22 bounces up, the limit hole 221 is completely penetrated. At this time, the four limit posts 3 are inserted into the four limit holes 221, and the movable posts 31 are lowered to be parallel to the direction of gravity. In this way, the pull-out sofa changes from the sofa state to the bed state. When it is necessary to change the pull-out sofa from the bed state to the sofa state, the limit posts 3 are first removed. The user sits on the elastic pad 23 and uses his or her own weight to press the elastic device 22. At this time, he or she pushes forward with his or her feet, and the movable mattress 2 partially enters the sofa body 1. Then, the movable mattress 2 is completely pushed into the sofa body 1. In this way, the pull-out sofa is changed from the bed state to the sofa state.

[0036] Through the above steps, the user pulls the movable mattress 2 out of the sofa body 1. During the pulling process, the limiting block 232 slides in the slide groove 112, and the roller 211 rolls on the ground 4. Then, the four limiting posts 3 are inserted into the four limiting holes 221. This solves the technical problem that the bearing area of the pull-out sofa is reduced due to the removal of part of the seat plate, which may easily cause damage to the pull-out sofa after long-term use.

Claims

1. A high-safety pull-out sofa, comprising a sofa body (1), characterized in that: The invention also includes a movable mattress (2), wherein the movable mattress (2) includes a fixed plate (21) placed on the ground (4), an elastic pad (23) is connected to the upper side of the fixed plate (21) via an elastic device (22), a whole wooden board is provided inside the elastic pad (23), and the elastic device (22) is provided with a limiting hole (221), and a limiting column (3) can be inserted into the limiting hole (221).

2. The high-safety pull-out sofa according to claim 1, characterized in that: The sofa body (1) comprises a seat cushion (11), an armrest block (12), and a backrest block (13); a sliding plate (231) is provided on the bottom of the elastic pad (23) near the backrest block (13); a limiting block (232) is provided on the side of the sliding plate (231) away from the ground (4); a limiting groove (111) is provided on the side of the seat cushion (11) near the ground (4); and the limiting block (232) can be inserted into the limiting groove (111).

3. The high-safety pull-out sofa according to claim 2, characterized in that: A sliding groove (112) is provided on a side of the seat cushion (11) close to the ground (4), and the limiting block (232) can slide in the sliding groove (112).

4. The high-safety pull-out sofa according to claim 1, characterized in that: The fixing plate (21) contacts the ground (4) via rollers (211).

5. The high-safety pull-out sofa according to claim 4, characterized in that: The roller (211) can only roll along a direction perpendicular to the length of the backrest block (13).

6. The high-safety pull-out sofa according to claim 1, characterized in that: The limiting column (3) is a "T"-shaped structure, and one side of the limiting column (3) capable of being inserted into the limiting hole (221) is hingedly connected with a movable column (31).

7. The high-safety pull-out sofa according to claim 6, characterized in that: A receiving groove (212) for receiving the limiting column (3) is provided on a side of the fixing plate (21) away from the ground (4).

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