Three-section sofa bed
By designing the slide rail and guide pulley structure of the three-section sofa bed, the time-consuming and labor-intensive and unstable conversion of the existing sofa bed is solved, and simple and smooth expansion and closing operations are achieved, and the cost of production and soft bags is saved.
Patent Information
- Application Number
- CN202422185331.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing sofa bed is time-consuming and labor-intensive when converting, inconvenient to use, and lacks a locking structure, resulting in unstable deployment.
A three-section sofa bed is designed, and the sliding rails and guide pulley structures between the rear frame, the middle frame and the front frame are realized to expand and close the sofa bed. The middle frame slides between the first slope sheet and the second slope sheet by a first guide pulley, and the front frame slides between the third slope sheet and the fourth slope sheet by a second guide pulley, so as to achieve simple expansion and closing.
It realizes simple operation of the sofa bed, smooth movement process and low noise, and is convenient for production and soft bags, saving costs.
Smart Images
Figure CN222828336U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bedding, and in particular to a three-section sofa bed. Background Art
[0002] Modern living room layout advocates simplicity. With the accelerated development of society and the continuous increase in population, the limited living space has become more obvious. Multifunctional furniture has become more and more popular, and sofa beds are one of them. In small-sized rooms, a sofa bed is necessary to meet the living needs of occasional visitors. Usually, a sofa bed can be placed in the living room or study room to serve as a seat; when guests come at night, unfold the sofa bed and put on bedding to make it a bed. In ordinary apartments such as three bedrooms and two living rooms, sofa beds can also help the owner deal with occasional multiple guests in addition to the guest bedroom bed. Now there are various sofa beds on the market, and there are various ways to convert between sofas and beds, such as folding, flipping, and stretching. These sofa beds use various connection mechanisms, which are mostly time-consuming and labor-intensive when converting, and are not very convenient to use. In addition, the conversion between sofas and beds does not have a locking structure, which easily causes the problem of unstable expansion of sofa beds. Utility Model Content
[0003] In order to solve the above technical problems, the embodiment of the present application provides a three-section sofa bed. The specific technical solution is as follows:
[0004] A three-section sofa bed is provided, which comprises a rear frame, a middle frame and a front frame. The rear frame is provided with first slide rails on opposite sides. The first and second slopes are provided at both ends of the first slide rail. The second slide rails are provided at opposite sides of the middle frame. The extension direction of the second slide rail is the same as the extension direction of the first slide rail. The third and fourth slopes are provided at both ends of the second slide rail. The middle frame is provided with a first guide pulley on one side close to the third slope. The first guide pulley is located on the first slope. The middle frame slides into the second slope via the first slide rail and extends out of the rear frame. The front frame is provided on the middle frame. The front frame is provided with a second guide pulley on one side close to the third slope. The second guide pulley is located on the third slope. The front frame slides into the fourth slope via the second guide pulley and extends out of the rear frame.
[0005] In one embodiment, when the three-section sofa bed is in a folded state, the first guide pulley is located on the first ramp, the second guide pulley is located on the third ramp, and the front frame and the middle frame are stacked on the rear frame.
[0006] In one embodiment, when the three-section sofa bed is in a semi-expanded or semi-folded state, the first guide pulley is located on the second ramp, the second guide pulley is located on the third ramp, the middle frame extends out of the rear frame, and the front frame is located on the middle frame.
[0007] In one embodiment, when the three-section sofa bed is in an unfolded state, the first guide pulley is located on the second ramp, the second guide pulley is located on the fourth ramp, the middle frame extends out of the rear frame, and the front frame extends out of the middle frame.
[0008] In one of the embodiments, a plurality of first support rods are arranged at intervals on the rear frame, and the plurality of first support rods are arranged along the extension direction of the first slide rail; a plurality of second support rods are arranged at intervals on the middle frame, and the plurality of second support rods are arranged along the extension direction of the second slide rail, and the plurality of second support rods are arranged at intervals from the plurality of first support rods; a plurality of third support rods are arranged at intervals on the front frame, and the plurality of third support rods are arranged along the extension direction of the second slide rail, and the plurality of third support rods are arranged at intervals from the plurality of second support rods.
[0009] In one embodiment, a first limiting pulley is provided on one side of the rear frame close to the second ramp piece, and the first limiting pulley abuts against both sides of the middle frame; a second limiting pulley is provided on one side of the middle frame close to the fourth ramp piece, and the second limiting pulley abuts against both sides of the front frame.
[0010] In one embodiment, a support frame is arranged below the rear frame; a first leg and a first roller located at the bottom of the first leg are arranged below the side of the middle frame opposite to the first guide pulley; a second leg and a second roller located at the bottom of the second leg are arranged below the side of the front frame opposite to the second guide pulley.
[0011] In one embodiment, a storage cabinet is arranged below the front frame, and a rotating side of a flip cover of the storage cabinet is pivotally connected to a side of the front frame close to the third slope piece.
[0012] In one of the embodiments, a reinforcement sheet is provided on the front frame, and the reinforcement sheet corresponds to the flap of the storage cabinet.
[0013] In one of the embodiments, it further includes: a sofa cushion, which is correspondingly arranged on the rear frame, the middle frame and the front frame.
[0014] In the embodiment of the present application, the middle frame slides between the first ramp piece and the second ramp piece through the first guide pulley to extend from or retract from the rear frame, and the front frame slides between the third ramp piece and the fourth ramp piece through the second guide pulley to extend from or retract from the middle frame, so that the three-section sofa bed can be deployed or folded, the operation is simple, and the movement process is smooth and the noise is low. At the same time, the three-section sofa bed of the present application is easy to produce and soft-pack, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0016] Figure 1 It is a three-dimensional diagram of the three-section sofa bed of the present application in a flap-opened state;
[0017] Figure 2 is a three-section sofa bed of the present application in a closed state with its cover flap;
[0018] Figure 3 is a three-section sofa bed of the present application in a folded state;
[0019] Figure 4 is a three-section sofa bed of the present application in a semi-expanded state;
[0020] Figure 5 This is a three-section sofa bed of the present application with its sofa cushions folded up.
[0021] Figure 6 It is a three-dimensional diagram of a sofa cushion of a three-section sofa bed of the present application in a semi-expanded state;
[0022] Figure 7 It is a three-dimensional diagram of the sofa cushion of the three-section sofa bed of the present application in an unfolded state. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0024] In addition, the terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this application. They are merely used to distinguish components or operations described with the same technical terms.
[0025] See also Figure 1 and Figure 2 , Figure 1 The three-section sofa bed of the present application is a three-dimensional diagram of the flip-open state and Figure 2 2 is a perspective view of the cover closed state; as shown in the figure, the three-section sofa bed 1 of this embodiment includes a rear frame 2, a middle frame 3 and a front frame 4. The rear frame 2 is provided with a first slide rail 21 on two opposite sides, and the first slide rail 21 is provided with a first slope piece 22 and a second slope piece 23 connecting the two ends of the first slide rail 21. Specifically, Figure 1 As shown, the first slide rail 21 is located on both sides of the length direction of the rear frame 2 and extends along the left and right direction, the first slope piece 22 is located on the right side of the rear frame 2, the bottom slope surface 221 of the first slope piece 22 is lower than the bottom surface of the first slide rail 21 and the right upper surface 201 of the rear frame 2, the second slope piece 23 is located on the left side of the rear frame 2, the bottom slope surface 231 of the second slope piece 23 is lower than the bottom surface of the first slide rail 21, and the first Γ-shaped baffle 24 is provided on the side of the second slope piece 23 away from the first slide rail 21 to prevent the middle frame 3 from sliding out of the rear frame 2.
[0026] See also Figure 1 and Figure 2 As shown, the middle frame 3 is provided with second slide rails 31 on two opposite sides. The extension direction of the second slide rail 31 is the same as the extension direction of the first slide rail 21. The second slide rail 31 is provided with a third ramp piece 32 and a fourth ramp piece 33 at both ends thereof, which are connected to the second slide rail 31. The middle frame 3 is provided with a first guide pulley 34 on one side close to the third ramp piece 32. Specifically, as Figure 1 As shown, the second slide rail 31 is located on both sides of the length direction of the middle frame 3 and extends in the left-right direction, the third ramp piece 32 is located on the right side of the middle frame 3, the bottom slope surface of the third ramp piece 32 is lower than the bottom surface of the second slide rail 31 and the upper surface 301 of the right side of the middle frame 3, the fourth ramp piece 33 is located on the left side of the middle frame 3, the bottom slope surface 331 of the fourth ramp piece 33 is lower than the bottom surface of the second slide rail 31, and the side of the fourth ramp piece 33 away from the second slide rail 31 is provided with a second Γ-shaped baffle 35 to prevent the front frame 4 from sliding out of the middle frame 3, and the first guide pulley 34 is located on the right side of the middle frame 3. The first guide pulley 34 is located on the first ramp piece 22. The middle frame 3 slides into the second ramp piece 23 via the first slide rail 21 through the first guide pulley 34 and extends out of the rear frame 2.
[0027] See also Figure 2 As shown, the front frame 4 is arranged on the middle frame 3. A second guide pulley 41 is arranged on one side of the front frame 4 close to the third ramp piece 32. Figure 2As shown, the second guide pulley 41 is located on the right side of the front frame 4. The second guide pulley 41 is located on the third ramp piece 32. The front frame 4 slides into the fourth ramp piece 33 via the second slide rail 31 through the second guide pulley 41 and extends out of the rear frame 2.
[0028] See also Figure 3 and Figure 4 Also see Figure 1 and Figure 2 As shown, Figure 3 The three-section sofa bed of the present application is shown in a folded state. Figure 4 It is a three-dimensional diagram of a semi-expanded state; as shown in the figure, the middle frame 3 of the three-section sofa bed 1 of this embodiment slides between the first ramp piece 22 and the second ramp piece 23 through the first guide pulley 34 and extends from or retracts to the rear frame 2, and the front frame 4 slides between the third ramp piece 32 and the fourth ramp piece 33 through the second guide pulley 41 and extends from or retracts to the middle frame 3, so that the three-section sofa bed 1 can be expanded or folded, which is easy to operate, and the movement process is stable and the noise is low. At the same time, the three-section sofa bed 1 of this embodiment is easy to produce and soft-pack, saving costs.
[0029] See also Figure 5 Also see Figure 1 and Figure 3 As shown, Figure 5 It is a three-dimensional diagram of the sofa cushion of the three-section sofa bed of the present application in the folded state; as shown in the figure, when the three-section sofa bed 1 is in the folded state, the first guide pulley 34 is located at the first ramp piece 22, the second guide pulley 41 is located at the third ramp piece 32, and the front frame 4 and the middle frame 3 are stacked on the rear frame 2. Since the first guide pulley 34 and the second guide pulley 41 of the three-section sofa bed 1 of this embodiment are respectively located in the corresponding first ramp piece 22 and the third ramp piece 32 in the folded state, it can prevent the front frame 4 and the middle frame 3 from being rubbed and unfolded in the folded state.
[0030] As mentioned above, please refer to Figure 6 Also see Figure 1 and Figure 4 As shown, Figure 6This is a three-dimensional diagram of the sofa cushion of the three-section sofa bed of the present application in a semi-expanded state; as shown in the figure, during the unfolding process of the three-section sofa bed 1, the front frame 4 is pulled outward, and since the second guide pulley 41 of the front frame 4 is located in the third ramp piece 32, the front frame 4 drives the first guide pulley 34 of the middle frame 3 to slide out of the first ramp piece 22 and enter the first slide rail 21, and the middle frame 3 slides into the second ramp piece 23 via the first slide rail 21 and extends out of the rear frame 2. At this time, the three-section sofa bed 1 is in a semi-expanded or semi-folded state, the first guide pulley 34 is located at the second ramp piece 23, the second guide pulley 41 is located at the third ramp piece 32, the middle frame 3 extends out of the rear frame 2, and the front frame 4 is located at the middle frame 3.
[0031] Next, see Figure 7 Also see Figure 1 and Figure 2 As shown, Figure 7 This is a three-dimensional diagram of the sofa cushion of the three-section sofa bed of the present application in the unfolded state; as shown in the figure, the front frame 4 is continuously pulled outward, the first Γ-shaped baffle 24 blocks the first guide pulley 34 of the middle frame 3 from continuing to slide, the second guide pulley 41 of the front frame 4 slides out of the third slope piece 32 and enters the second slide rail 31, the front frame 4 slides into the fourth slope piece 33 via the second slide rail 31 and extends out of the middle frame 3, and at the same time the second Γ-shaped baffle 35 blocks the second guide pulley 41 of the front frame 4 from continuing to slide. At this time, when the three-section sofa bed 1 is in the unfolded state, the first guide pulley 34 is located at the second slope piece 23, the second guide pulley 41 is located at the fourth slope piece 33, the middle frame 3 extends out of the rear frame 2, and the front frame 4 extends out of the middle frame 3.
[0032] See also Figure 1 As shown, in this embodiment, a plurality of first support rods 25 are arranged at intervals on the rear frame 2. The plurality of first support rods 25 are arranged along the extension direction of the first slide rail 21. A plurality of second support rods 35 are arranged at intervals on the middle frame 3. The plurality of second support rods 35 are arranged along the extension direction of the second slide rail 31, and the plurality of second support rods 35 are arranged at intervals from the plurality of first support rods 25. A plurality of third support rods 42 are arranged at intervals on the front frame 4, and the plurality of third support rods 42 are arranged along the extension direction of the second slide rail 31, and the plurality of third support rods 42 are arranged at intervals from the plurality of second support rods 35. Please refer to Figure 6 and Figure 7 As shown, the sofa cushion 5 is correspondingly arranged on the rear frame 2, the middle frame 3 and the front frame 4, and the front frame 4, the middle frame 3 and the rear frame 2 support the sofa cushion 5 through corresponding support rods.
[0033] See also Figure 1As shown, in this embodiment, a first limiting pulley 26 is provided on one side of the rear frame 2 close to the second ramp piece 23. The first limiting pulley 26 abuts against both sides of the middle frame 3. In this way, when the middle frame 3 is unfolded or folded, the middle frame 3 can stabilize its motion trajectory through the cooperation of the first guide pulley 34 and the first limiting pulley 26, ensure the smooth motion process, and reduce noise. A second limiting pulley 36 is provided on one side of the middle frame 3 close to the fourth ramp piece 33. The second limiting pulley 36 abuts against both sides of the front frame 4. In this way, when the front frame 4 is unfolded or folded, the front frame 4 can stabilize its motion trajectory through the cooperation of the second guide pulley 34 and the second guide pulley 41, ensure the smooth motion process, and reduce noise.
[0034] See also Figure 1 As shown, in this embodiment, a support frame 27 is provided below the rear frame 2. A first leg 37 and a first roller 38 located at the bottom of the first leg 37 are provided below the side of the middle frame 3 opposite to the first guide pulley 34, so that it is convenient to have a certain support effect on the middle frame 3 and facilitate the expansion or folding movement of the middle frame 3. A second leg 43 and a second roller 44 located at the bottom of the second leg 43 are provided below the side of the front frame 4 opposite to the second guide pulley 41, so that it is convenient to have a certain support effect on the front frame 4 and facilitate the expansion or folding movement of the front frame 4.
[0035] See also Figure 7 As shown, in this embodiment, a storage cabinet 45 is provided below the front frame 4. The rotating side of the flip cover 46 of the storage cabinet 45 is pivotally connected to the side of the front frame 4 close to the third slope piece 32. When the three-section sofa bed 1 is in the unfolded state, the flip cover 46 can be rotated upward to open the storage cabinet 45, so that the three-section sofa bed 1 of this embodiment can have a storage function. Please refer to Figure 1 and Figure 2 As shown, a reinforcing sheet 47 is provided on the front frame 4, and the reinforcing sheet 47 corresponds to the flip cover 46 of the storage cabinet 45. The flip cover 46 abuts against the reinforcing sheet 47 when closed.
[0036] In summary, the present application provides a three-section sofa bed, wherein the middle frame slides between the first ramp piece and the second ramp piece through the first guide pulley and extends from or retracts into the rear frame, and the front frame slides between the third ramp piece and the fourth ramp piece through the second guide pulley and extends from or retracts into the middle frame, so that the three-section sofa bed can be deployed or folded, and the operation is simple, and the movement process is stable and the noise is low. At the same time, the three-section sofa bed of the present application is easy to produce and soft-pack, and saves costs.
[0037] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0038] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. A three-section sofa bed, characterized in that: include: The rear frame has first slide rails disposed on two opposite sides, and both ends of the first slide rail are provided with a first slope piece and a second slope piece connecting the two ends of the first slide rail; The middle frame has second slide rails on two opposite sides, the extension direction of the second slide rails is the same as the extension direction of the first slide rails, the two ends of the second slide rails are provided with a third ramp piece and a fourth ramp piece connecting the two ends of the second slide rails, the middle frame is provided with a first guide pulley on one side close to the third ramp piece, the first guide pulley is located on the first ramp piece, and the middle frame slides into the second ramp piece via the first guide pulley and the first slide rail and extends out of the rear frame; The front frame is arranged on the middle frame, and a second guide pulley is arranged on a side of the front frame close to the third ramp piece, and the second guide pulley is located on the third ramp piece. The front frame slides into the fourth ramp piece via the second guide pulley and the second slide rail and extends out of the rear frame.
2. The three-section sofa bed according to claim 1, characterized in that: When the three-section sofa bed is in a folded state, the first guide pulley is located on the first slope piece, the second guide pulley is located on the third slope piece, and the front frame and the middle frame are stacked on the rear frame.
3. The three-section sofa bed according to claim 1, characterized in that: When the three-section sofa bed is in a semi-expanded or semi-folded state, the first guide pulley is located on the second slope piece, the second guide pulley is located on the third slope piece, the middle frame extends out of the rear frame, and the front frame is located on the middle frame.
4. The three-section sofa bed according to claim 1, characterized in that: When the three-section sofa bed is in an unfolded state, the first guide pulley is located on the second slope piece, the second guide pulley is located on the fourth slope piece, the middle frame extends out of the rear frame, and the front frame extends out of the middle frame.
5. The three-section sofa bed according to claim 1, characterized in that: A plurality of first support rods are arranged at intervals on the rear frame, and the plurality of first support rods are arranged along the extension direction of the first slide rail; a plurality of second support rods are arranged at intervals on the middle frame, and the plurality of second support rods are arranged along the extension direction of the second slide rail, and the plurality of second support rods are arranged at intervals from the plurality of first support rods; a plurality of third support rods are arranged at intervals on the front frame, and the plurality of third support rods are arranged along the extension direction of the second slide rail, and the plurality of third support rods are arranged at intervals from the plurality of second support rods.
6. The three-section sofa bed according to claim 1, characterized in that: A first limiting pulley is provided on one side of the rear frame close to the second ramp piece, and the first limiting pulley abuts against both sides of the middle frame; a second limiting pulley is provided on one side of the middle frame close to the fourth ramp piece, and the second limiting pulley abuts against both sides of the front frame.
7. The three-section sofa bed according to claim 1, characterized in that: A support frame is arranged below the rear frame; a first leg and a first roller located at the bottom of the first leg are arranged below the side of the middle frame opposite to the first guide pulley; a second leg and a second roller located at the bottom of the second leg are arranged below the side of the front frame opposite to the second guide pulley.
8. The three-section sofa bed according to claim 1, characterized in that: A storage cabinet is arranged below the front frame, and a rotating side of a flip cover of the storage cabinet is pivotally connected to a side of the front frame close to the third slope piece.
9. The three-section sofa bed according to claim 8, characterized in that: A reinforcement sheet is provided on the front frame, and the reinforcement sheet corresponds to the flip cover of the storage cabinet.
10. The three-section sofa bed according to claim 1, characterized in that: Also includes: The sofa cushions are correspondingly arranged on the rear frame, the middle frame and the front frame.