Patent Application
20250072623
This application is based upon and claims priority to Chinese Patent Application No. 202322418702.9, filed on Sep. 6, 2023, the entire contents of which are incorporated herein by reference.
This application relates to a sofa, and particularly relates to a self-locking mechanism and a folding sofa.
Bed is one of the essential household items in people's home life. However, the bed usually occupies a large area and often occupy a considerable living space. To improve the reasonable use area, people improve the use mode of the bed to obtain more space to move around. Therefore, the folding sofa bed industry came into being.
In the process of implementing this application, the applicant found that some folding sofa beds at present may cause customers to make misoperation due to the soft package design problems of a sofa when unfolding the folding sofa, which may lead to the damage of bedstead parts.
An embodiment of this application provides a self-locking mechanism and a folding sofa, which solve the problem that the folding sofa is opened by misoperation. To solve the above technical problem, this application is implemented as follows:
In a first aspect, a self-locking mechanism is provided, which is configured to automatically lock a folding bedstead of a folding sofa, and includes a support member, a locking member, a drive member and a switch member. The support member has a first end and a second end opposite to each other. The locking member has a first connection portion and a locking portion, and the first connection portion of the locking member is pivotally connected to the first end of the support member. One end of the drive member is pivotally connected to the first connection portion of the locking member. The switch member has a second connection portion and a switch portion, the second connection portion of the switch member is pivotally connected to the second end of the support member and the other end of the drive member, and the switch portion drives the locking portion to rotate downwards and be pressed against the folding bedstead to lock the folding bedstead.
In a second aspect, a folding sofa is provided, which includes a sofa body frame, a folding bedstead and the self-locking mechanism according to any of the above first aspect. The self-locking mechanism and the folding bedstead are arranged on the sofa body frame. The folding bedstead can be folded or unfolded on the sofa body frame. When the folding bedstead is folded on the sofa body frame, the folding bedstead pushes the switch portion to rotate downwards, and the switch portion drives the locking portion to rotate downwards, so that the locking portion is pressed against the folding bedstead to lock the folding bedstead.
In the embodiment of this application, the switch portion is driven to rotate downwards by a folding action of the folding bedstead, so that the locking portion is driven to rotate downwards and pressed against the folding bedstead to lock the folding bedstead, and thus the folding bedstead can be prevented from being opened by misoperation. In addition, after the folding bedstead is unfolded, the self-locking mechanism can also be used as a support to support the folding bedstead to a fixed position. Meanwhile, the self-locking mechanisms can be separately sent to customers for use, and can be used as additional options for the folding sofas according to customer needs, and the customers only need to install them in corresponding positions as required.
The accompanying drawings described herein are used to provide a further understanding of this application, and form part of this application. Exemplary embodiments of this application and descriptions thereof are used to explain this application, and do not constitute any inappropriate limitation to this application. In the accompanying drawings:
With the accompanying drawings, it is explained as follows:
The technical solutions in embodiments of this application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are merely some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without making creative efforts shall fall within the protection scope of this application.
In the description of this application, it should be understood that orientation or position relationships indicated by the terms such as “upper”, “lower”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, and “outside” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned apparatus or component must have a particular orientation or must be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of this application.
In addition, the terms such as “first” and “second” used herein do not specifically refer to the order or sequence, nor are they used to limit this application, but only to distinguish assemblies or operations described in the same technical terms.
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The locking member 2 has a first connection portion 21 and a locking portion 22. The first connection portion 21 of the locking member 2 is pivotally connected to the first end of 11 the support member 1. In this embodiment, the support member 1 has a pivoting portion 111 at the first end 11, and the first connection portion 21 of the locking member 2 penetrates through the pivoting portion 111 through a first connection shaft 23, to be pivotally connected to the first end 11 of the support member 1. The first connection portion 21 may use an angular plate, the locking portion 22 may use a rectangular plate, and the pivoting portion 111 may use a bearing.
One end of the drive member 3 is pivotally connected to the first connection portion 21 of the locking member 2. The switch member 4 has a second connection portion 41 and a switch portion 42. The other end of the drive member 3 is pivotally connected to the second connection portion 41 of the switch member 4. The drive member 3 may be respectively pivotally connected to the locking member 2 and the switch member 4 by third connection shafts 31 penetrating through the two ends of the drive member, the first connection portion 21 of the locking member 2 and the second connection portion 41 of the switch member 4. In this embodiment, the drive member 3 uses a connecting rod.
As mentioned above, the second connection portion 41 of the switch member 4 is further pivotally connected to the second end 12 of the support member 1. The switch member 4 may be pivotally connected to the support member 1 by a second connection shaft 43 penetrating through the second connection portion 41 and the second end 12 of the support member 1. The switch portion 42 drives the locking portion 22 to rotate downwards and be pressed against the folding bedstead 201 to lock the folding bedstead 201. In this embodiment, the switch member 4 uses an L-shaped rod, in other words, the second connection portion 41 and the switch portion 42 form an L-shaped rod.
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When the folding bedstead 201 is folded on the sofa body frame 202, the folding bedstead 201 pushes the switch portion 42 to rotate downwards, and the switch portion 42 drives the locking portion 22 to rotate downwards, so that the locking portion 22 is pressed against the folding bedstead 201 to lock the folding bedstead 201, and thus the folding bedstead 201 can be prevented from being opened by misoperation. When the folding bedstead 201 is unfolded according to normal steps, the self-locking mechanism 100 may be unlocked automatically, at this time, the self-locking mechanism can also be used as a support to support the folding bedstead 201 to the fixed position.
In conclusion, this application discloses the self-locking mechanism and the folding sofa. According to this application, the switch portion is driven to rotate downwards by a folding action of the folding bedstead, so that the locking portion is driven to rotate downwards and pressed against the folding bedstead to lock the folding bedstead, and thus the folding bedstead can be prevented from being opened by mistake. In addition, after the folding bedstead is unfolded, the self-locking mechanism can also be used as a support to support the folding bedstead to a fixed position. Meanwhile, the self-locking mechanisms can be separately sent to customers for use, and can be used as additional options for the folding sofas according to customer needs, and the customers only need to install them in corresponding positions as required.
It should be noted that the term herein “include,” “comprise,” or their any other variants is intended to cover a non-exclusive inclusion, so that a process, a method, an article, or an apparatus that includes a series of elements not only includes such elements, but also includes other elements not expressly listed, or further includes elements inherent to such a process, method, article, or apparatus. If there are no more limitations, an element limited by “include a/an . . . ” does not exclude other same elements existing in the process, the method, the article, or the apparatus which includes the element.
The embodiments of this application are described with reference to the accompanying drawings. However, this application is not limited to the foregoing specific implementations. The foregoing specific implementations are merely exemplary, but are not restrictive. Persons of ordinary skill in the art may make many forms without departing from the object and the scope of the claims of this application and are within the protection scope of this application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202322418702.9 | Sep 2023 | CN | national |
