Folding device for folding bed

Abstract

A folding device for a folding bed, the folding device comprising a base, wherein a first folding frame and a second folding frame are movably connected to the base, a folding mechanism is provided on the base, and the first folding frame and the second folding frame are both connected to the folding mechanism; and the folding mechanism is provided with a first support portion and a second support portion, which provide support for the second folding frame. Compared with the prior art, when a folding bed is subjected to a force, by adjusting the relative position between a force application point and a fulcrum, a negative moment for tilting up the first folding frame is generated at the force application point, so as to prevent the second folding frame from sinking under force, thereby ensuring that the folding mechanism does not break and come apart, improving the load-bearing capacity of the folding mechanism, and improving the weight-bearing capacity of the folding bed and ensuring the safety of users.

Description

A folding device for folding beds Technical Field

[0001] This invention relates to the field of furniture technology, and more specifically to a folding device for a folding bed. Background Technology

[0002] A folding bed is a simple bed designed using joint principles. For convenience and space saving, it can be folded and stored in various ways. Folding beds typically consist of a bed frame, mattress, and folding mechanism. They can be used in homes, offices, outdoor camping, and medical facilities.

[0003] To address the aforementioned issues, Chinese Patent Application No. 201611084884.9 discloses an integrated folding and flipping sofa bed. This disclosed sofa bed includes: a backrest vertical panel; a front vertical panel spaced at intervals from the backrest vertical panel; left and right armrests on either side of the backrest vertical panel; a base frame on the inner sides of the backrest vertical panel, front vertical panel, and left and right armrests; a storage space formed by the area enclosed by the backrest vertical panel, front vertical panel, and left and right armrests; a first folding frame; a headrest frame; a second folding frame; a third folding frame; a foldable mattress; legs; a folding rod; and a flip-up rod. Chinese Patent Application No. 201510510916.6 discloses a forward-flipping mechanism for a foldable bed. The disclosed forward-flipping mechanism includes a bed board mounting frame, an upright frame, and a rotating module. The upright frame is a frame structure with left and right sides. Two sets of the bed board mounting frame and the rotating module are installed on the inner sides of the left and right sides of the upright frame, respectively. The bed board mounting frame is mounted on the rotating module. The inner sides of the left and right sides of the upright frame have symmetrical recessed grooves for mounting the rotating module. The rotating module is characterized by comprising a metal channel, a support module, a sliding module, a gas spring, and a limiting block.

[0004] In the aforementioned prior art, the folding bed achieves its folding function through the cooperation of a first folding frame, a second folding frame, a third folding frame, and a pair of connecting rod folding components. The folding structure in the above solution is relatively complex. At the same time, the support strength of the connecting rod folding components is low. After the folding bed is unfolded, the connecting rod folding components are in an inclined state. When the folding bed is subjected to force, the fulcrum of the connecting rod folding components will shift from the force point of the folding frame, which can easily cause the folding frame to sink. In addition, the connecting rod folding components are prone to breakage and disintegration, which can easily cause the folding bed to collapse, thus posing a safety hazard to the user. Summary of the Invention

[0005] The present invention aims to overcome the defects in the prior art and provide a folding device for folding beds that has a simple structure, high support strength, and will not break or fall apart.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a folding device for a folding bed, comprising a base, on which a first folding frame and a second folding frame are movably connected, and a folding mechanism is provided on the base, wherein both the first folding frame and the second folding frame are connected to the folding mechanism; the folding mechanism is provided with a first support portion and a second support portion for providing support for the second folding frame.

[0007] As a preferred embodiment of the present invention, the folding mechanism includes a first folding member, the two ends of which are respectively hinged to a first folding frame and a base.

[0008] As a preferred embodiment of the present invention, the first support portion is connected to the end of the first folding member, and the two ends of the first support portion are respectively hinged to the base and the second folding frame.

[0009] As a preferred embodiment of the present invention, the included angle between the first folding member and the first support member is an acute angle.

[0010] As a preferred embodiment of the present invention, the folding mechanism further includes a second folding member that cooperates with the first folding member, the two ends of the second folding member being hinged to the first folding frame and the base, respectively.

[0011] In a preferred embodiment of the present invention, the second support portion is connected to the end of the second folding member, and the two ends of the second support portion are respectively hinged to the base and the second folding frame.

[0012] As a preferred embodiment of the present invention, a buffer member for providing cushioning for the first folding frame and the second folding frame is connected between the second folding member and the base, and the two ends of the buffer member are respectively hinged to the second folding member and the base.

[0013] As a preferred embodiment of the present invention, the second folding member is a bent structure, with a bent portion formed in the middle of the second folding member, and the buffer member is hinged to the bent portion.

[0014] As a preferred embodiment of the present invention, the first folding member is provided with a stop member, which abuts against the first folding frame or the second folding member.

[0015] In a preferred embodiment of the present invention, the base is provided with a first connector, the first folding frame is provided with a second connector, the second folding frame is provided with a third connector, and the folding mechanism is hinged to the first connector, the second connector and the third connector.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The folding mechanism enables the folding of the first and second folding frames. The folding mechanism also includes a first and second support section. When the first and second folding frames are unfolded, the first and second support sections are in a vertical position. The connection points between the first and second support sections and the second folding frame are the stress points, and the connection points between the first and second support sections and the base are the fulcrums. When the folding bed is subjected to force, the relative positions of the stress points and the fulcrums are adjusted to create a negative moment that lifts the first folding frame, thus preventing the second folding frame from sinking under stress. This ensures that the folding mechanism will not break or scatter, improving the load-bearing capacity of the folding mechanism and the load-bearing capacity of the folding bed, and guaranteeing user safety.

[0018] 2. Furthermore, the buffer is designed to cushion the first and second folding frames during folding, preventing them from falling rapidly downwards.

[0019] 3. Furthermore, by setting stop components, the folding of the first folding frame and the second folding frame is limited, so as to avoid the folding mechanism from jamming due to excessive folding angle of the first folding frame and the second folding frame. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of the present invention;

[0021] Figure 2 is a schematic diagram of the folding mechanism of the present invention;

[0022] Figure 3 is a structural schematic diagram of the unfolded state of the folding mechanism;

[0023] Figure 4 is a schematic diagram of the folding mechanism in its folded state.

[0024] Reference numerals: base 1, first connector 101, first folding frame 2, second connector 201, support leg 202, second folding frame 3, third connector 301, folding mechanism 4, first folding member 401, first support part 4011, stop member 4012, second folding member 402, second support part 4021, bending part 4022, buffer member 403. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] As shown in Figures 1-4, a folding device for a folding bed includes a base 1, on which a first folding frame 2 and a second folding frame 3 are movably connected. A folding mechanism 4 is provided on the base 1, and the first folding frame 2 and the second folding frame 3 are both connected to the folding mechanism 4. The folding mechanism 4 is provided with a first support part 4011 and a second support part 4021 for providing support for the second folding frame 3.

[0027] Furthermore, two folding mechanisms 4 are provided, and the two folding mechanisms 4 are located at opposite ends of the base 1. The base 1 is a fixed structure. The first folding frame 2 and the second folding frame 3 fold and move on the base 1. The folding mechanisms 4 are connected to the base 1, and both the first folding frame 2 and the second folding frame 3 are connected to the folding mechanisms 4. The folding functions of the first folding frame 2 and the second folding frame 3 are realized through the folding mechanisms 4. The first folding frame 2 is provided with support legs 202 for supporting the first folding frame 2. When the first folding frame 2 and the second folding frame 3 are unfolded, the first support part 4011 and the second support part 4011... When the folding bed is in a vertical position, the connection between the first support part 4011 and the second support part 4021 and the second folding frame 3 is the stress point, and the connection between the first support part 4011 and the second support part 4021 and the base 1 is the fulcrum. When the folding bed is subjected to force, by adjusting the relative position of the stress point and the fulcrum, the stress point generates a negative moment that lifts the first folding frame 2, thereby preventing the second folding frame 3 from sinking under force. This ensures that the folding mechanism 4 will not break or fall apart, improves the load-bearing capacity of the folding mechanism 4, and also improves the load-bearing capacity of the folding bed, ensuring the safety of the user.

[0028] The folding mechanism 4 includes a first folding member 401, with its two ends hinged to the first folding frame 2 and the base 1, respectively. Furthermore, the first folding member 401 is used to connect the first folding frame 2 and the base 1, and the first folding frame 2 is folded by the first folding member 401.

[0029] The first support part 4011 is connected to the end of the first folding member 401, and both ends of the first support part 4011 are respectively hinged to the base 1 and the second folding frame 3. Furthermore, the first support part 4011 and the first folding member 401 are an integral structure. The first support part 4011 is located at the end of the first folding member 401, and the first support part 4011 and the first folding member 401 are simultaneously hinged to the same place on the base 1. The first support part 4011 is also hinged to the second folding frame 3. When the first folding frame 2 and the second folding frame 3 are unfolded, the first support part 4011 is in a vertical state. The pressure borne by the first support part 4011 is vertically downward and there is no force component in other directions. At this time, the first support part 4011 provides the best support for the second support frame 3.

[0030] In addition, the included angle between the first folding member 401 and the first support part 4011 is an acute angle, and the cooperation between the first folding member 401 and the first support part 4011 realizes the supporting function of the first folding frame 2.

[0031] The folding mechanism 4 also includes a second folding member 402 that cooperates with the first folding member 401. The two ends of the second folding member 402 are respectively hinged to the first folding frame 2 and the base 1. Furthermore, the second folding member 402 is used to connect the first folding frame 2 and the base 1. The cooperation between the second folding member 402 and the second support part 4021 realizes the support function for the inner side of the first folding frame 2. The support leg 202 and the first folding member 401 realize the support function for the outer side of the first folding frame 2. At the same time, the first folding frame 2 is folded by the first folding member 401 and the second folding member 402.

[0032] The second support part 4021 is connected to the end of the second folding member 402, and both ends of the second support part 4021 are respectively hinged to the base 1 and the second folding frame 3. Furthermore, the second support part 4021 and the second folding member 402 are an integral structure. The second support part 4021 is connected to the end of the second folding member 402, and the second support part 4021 and the second folding member 402 are simultaneously hinged to the same place on the base 1. The second support part 4021 is also hinged to the second folding frame 3. When the first folding frame 2 and the second folding frame 3 are unfolded, the second support part 4021 is in a vertical state. The pressure borne by the second support part 4021 is vertically downward and there is no force component in other directions. At this time, the second support part 4021 provides the best support for the second support frame 3.

[0033] At the same time, the first folding component 401 drives the first support part 4011 to rotate, and the second folding component 402 drives the second support part 4021 to rotate, thereby driving the second folding frame 3 to rotate synchronously with the first folding frame 2, thus realizing the folding of the first folding frame 2 and the second folding frame 3.

[0034] A buffer 403 is connected between the second folding member 402 and the base 1 to provide cushioning for the first folding frame 2 and the second folding frame 3. The two ends of the buffer 403 are respectively hinged to the second folding member 402 and the base 1. Furthermore, the buffer 403 can be a gas spring or other devices that can achieve the cushioning effect. The two ends of the buffer 403 are respectively connected to the second folding member 402 and the base 1. The buffer 403 cushions the first folding frame 2 and the second folding frame 3 when they are folded, so that the first folding frame 2 and the second folding frame 3 will not fall down rapidly when they are folded.

[0035] When the buffer 403 is a gas spring, after the first folding frame 2 and the second folding frame 3 are unfolded, the telescopic rod of the gas spring is in the extended state; when the first folding frame 2 and the second folding frame 3 are folded, the telescopic rod of the gas spring is in the retracted state; when the first folding frame 2 and the second folding frame 3 are rotated from the unfolded state to the folded state, the telescopic rod gradually retracts into the gas spring. During this process, the gas spring buffers the first folding frame 2 and the second folding frame 3 when they are folded, thereby preventing the first folding frame 2 and the second folding frame 3 from falling downwards rapidly.

[0036] The second folding member 402 is a bent structure, with a bent portion 4022 formed in the middle of the second folding member 402. The buffer member 403 is hinged to the bent portion 4022. Furthermore, the bent structure is a Z-shaped structure, with the included angle between the bent portion 4022 and the two ends of the second folding member 402 being 90 degrees or close to 90 degrees. The bottom end of the buffer member 403 is hinged to the bent portion 4022, and the output end of the buffer member 403 is hinged to the base 1.

[0037] The first folding member 401 is provided with a stop member 4012, which abuts against the first folding frame 2 or the second folding member 402. Furthermore, the stop member 4012 is located at one end near the connection between the first folding member 401 and the first folding frame 2. When the first folding frame 2 and the second folding frame 3 are in the unfolded state, the stop member 4012 abuts against the first folding frame 2. When the first folding frame 2 and the second folding frame 3 are in the folded state, the stop member 4012 abuts against the second folding member 402. The stop member 4012 is provided to limit the folding of the first folding frame 2 and the second folding frame 3, so as to avoid the folding mechanism 4 from jamming due to the excessive folding angle of the first folding frame 2 and the second folding frame 3.

[0038] The base 1 is provided with a first connector 101, the first folding frame 2 is provided with a second connector 201, the second folding frame 3 is provided with a third connector 301, and the folding mechanism 4 is hinged to the first connector 101, the second connector 201, and the third connector 301. Furthermore, the same end of the first folding member 401 and the second folding member 402 are respectively hinged to the opposite ends of the second connector 201, and the other ends of the first folding member 401 and the second folding member 402 are respectively hinged to the opposite ends of the first connector 101. The first support part 4011 and the second support part 4021 are respectively hinged to the opposite ends of the third connector 301. The output end of the buffer member 403 is hinged to the end of the third connector 301, and the hinge point between the buffer member 403 and the third connector 301 and the hinge point between the second folding member 402 and the third connector 301 are located at the same end of the third connector 301.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this document frequently uses reference numerals from the figures, such as base 1, first connector 101, first folding frame 2, second connector 201, support leg 202, second folding frame 3, third connector 301, folding mechanism 4, first folding member 401, first support portion 4011, stop member 4012, second folding member 402, second support portion 4021, bending portion 4022, and buffer member 403, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A folding device for a folding bed, comprising a base (1), wherein a first folding frame (2) and a second folding frame (3) are movably connected to the base (1), characterized in that, The base (1) is provided with a folding mechanism (4), and the first folding frame (2) and the second folding frame (3) are both connected to the folding mechanism (4); the folding mechanism (4) is provided with a first support part (4011) and a second support part (4021) for providing support for the second folding frame (3).

2. A folding device for a folding bed according to claim 1, characterized in that, The folding mechanism (4) includes a first folding member (401), the two ends of which are respectively hinged to the first folding frame (2) and the base (1).

3. A folding device for a folding bed according to claim 2, characterized in that, The first support part (4011) is connected to the end of the first folding member (401), and the two ends of the first support part (4011) are respectively hinged to the base (1) and the second folding frame (3).

4. A folding device for a folding bed according to claim 2, characterized in that, The angle between the first folding member (401) and the first support part (4011) is an acute angle.

5. A folding device for a folding bed according to claim 2, characterized in that, The folding mechanism (4) also includes a second folding member (402) that cooperates with the first folding member (401). The two ends of the second folding member (402) are respectively hinged to the first folding frame (2) and the base (1).

6. A folding device for a folding bed according to claim 5, characterized in that, The second support (4021) is connected to the end of the second folding member (402), and the two ends of the second support (4021) are respectively hinged to the base (1) and the second folding frame (3).

7. A folding device for a folding bed according to claim 5, characterized in that, A buffer (403) for providing cushioning for the first folding frame (2) and the second folding frame (3) is connected between the second folding member (402) and the base (1). The buffer (403) is hinged at both ends to the second folding member (402) and the base (1).

8. A folding device for a folding bed according to claim 7, characterized in that, The second folding member (402) is a bent structure, and a bent portion (4022) is formed in the middle of the second folding member (402), and the buffer member (403) is hinged to the bent portion (4022).

9. A folding device for a folding bed according to claim 5, characterized in that, The first folding member (401) is provided with a stop member (4012), which abuts against the first folding frame (2) or the second folding member (402).

10. A folding device for a folding bed according to claim 1, characterized in that, The base (1) is provided with a first connector (101), the first folding frame (2) is provided with a second connector (201), the second folding frame (3) is provided with a third connector (301), and the folding mechanism (4) is hinged to the first connector (101), the second connector (201) and the third connector (301).

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