Double drive telescopic bed frame and double drive telescopic bed

Abstract

The application discloses a double-drive telescopic bed frame and a double-drive telescopic bed. The double-drive telescopic bed frame comprises a fixed frame, a translation frame, a first drive assembly, a backrest mechanism, a middle frame group, an expansion frame, a second drive assembly and a linkage rod group. The first drive assembly is connected with the translation frame and is used for driving the translation frame to move linearly along the fixed frame. The middle frame group is arranged on the other side of the translation frame. The middle frame group comprises a transition frame and a telescopic frame. The transition frame is pivotally connected with the other side of the translation frame, and the telescopic frame is movably arranged in the transition frame. The expansion frame is arranged on the side opposite to the translation frame of the middle frame group and is pivotally connected with the transition frame. The second drive assembly is arranged on the fixed frame. The second drive assembly comprises a drive rod group and a second drive member. The rotating end of the drive rod group is pivotally connected with the fixed frame, and the driven end of the drive rod group is pivotally connected with the expansion frame. The application can provide strong and effective power through the double-drive mechanism, and the problem that the bed cannot be driven due to excessive load can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a telescopic bed, in particular to a double drive telescopic bed frame and a double drive telescopic bed. BACKGROUND

[0002] Bed is one of the essential household appliances in people's home life. However, the floor area of the bed is usually large, and often occupies a considerable living space. In order to improve the reasonable use area, people improve the use mode of the bed to obtain more activity space, and thus the telescopic bed industry is born.

[0003] In the process of realizing the present application, the applicant found that the current telescopic bed is driven by a single motor, the motor is heavy, and as the use time increases, the problem of the telescopic bed being unable to drive due to the heavy weight of the motor may occur, and at the same time, due to the design problem of the sofa soft package of the telescopic bed, gaps may appear on the surface of the mattress during the telescoping of the telescopic bed. SUMMARY

[0004] The embodiments of the present application provide a double drive telescopic bed frame and a double drive telescopic bed, which solve the problems of the telescopic bed being unable to drive due to the heavy weight of the single motor and the gaps appearing on the surface of the mattress during the telescoping process.

[0005] In order to solve the above technical problems, the present application is realized as follows:

[0006] In a first aspect, a double drive telescopic bed frame is provided, which comprises a fixed frame, a translation frame, a first drive assembly, a backrest mechanism, a middle frame group, an expansion frame, a second drive assembly and a linkage rod group. The translation frame is movably arranged on the fixed frame. The first drive assembly is connected with the translation frame. The first drive assembly is used to drive the translation frame to move linearly along the fixed frame. The backrest mechanism is arranged on one side of the translation frame. The backrest mechanism has a first rod group and a second rod group, one end of the first rod group is pivotally connected with one end of the fixed frame, one end of the second rod group is pivotally connected with the first rod group, and the other end of the second rod group is pivotally connected with the translation frame. The middle frame group is arranged on the other side of the translation frame. The middle frame group has a transition frame and a telescopic frame, the transition frame is pivotally connected with the other side of the translation frame, and the telescopic frame is movably arranged in the transition frame. The expansion frame is arranged on the side opposite to the translation frame of the middle frame group, and is pivotally connected with the transition frame.

[0007] The second driving assembly is arranged on the fixed frame. The second driving assembly has a driving rod set and a second driving member. The driving rod set has opposite rotating end and driven end. The rotating end of the driving rod set is pivotally connected with the fixed frame. The driven end of the driving rod set is pivotally connected with the expansion frame. The second driving member is connected with the driving rod set. One end of the linkage rod set is pivotally connected with the expansion frame. The other end of the linkage rod set is pivotally connected with the telescopic frame. The transition frame is driven to rotate around the rotating end by the second rod set to drive the backrest mechanism to adjust. The second driving member drives the expansion frame to extend and retract the fixed frame by driving the driving rod set to rotate around the rotating end. The expansion frame drives the transition frame to lift and simultaneously drives the telescopic frame to extend and retract the transition frame through the linkage rod set.

[0008] In a second aspect, the application provides a double driving telescopic bed, which comprises the double driving telescopic bed frame in the first aspect and sequentially connected backrest pad, translation pad, telescopic pad and expansion pad. The backrest pad is arranged on the backrest mechanism. The translation pad is arranged on the translation frame. The telescopic pad is arranged on the telescopic frame. The expansion pad is arranged on the expansion frame.

[0009] In the embodiment of the application, the double driving mechanism is formed by the first driving assembly and the second driving assembly. The backrest mechanism, the translation frame, the intermediate frame set, the expansion frame and the second driving assembly are driven by the double driving mechanism to realize the telescopic function of the bed frame. Thus, strong and effective power can be provided to avoid the problem of unable to drive due to excessive load. Meanwhile, the intermediate frame set is arranged between the translation frame and the expansion frame. The intermediate frame set has the telescopic frame which is telescoped with the movement of the double driving mechanism. Thus, the gap of the soft bag can be reduced. The surface of the soft bag is always connected together. The comfort and the aesthetic appearance can be increased. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0011] Figure 1 is a perspective view of the double driving telescopic bed frame of an embodiment of the application;

[0012] Figure 2 is a partial perspective view of the double driving telescopic bed frame of an embodiment of the application;

[0013] Figures 3 to 7 is an expansion process diagram of the double driving telescopic bed frame of an embodiment of the application;

[0014] Figure 8 is a perspective view of the double driving telescopic bed of an embodiment of the application.

[0015] The application will be described in greater detail with reference to the drawings, in which:

[0016] 100: double drive telescopic bed frame; 1: fixed frame; 2: translation frame; 3: first drive assembly; 31: first drive piece; 32: ball screw; 33: sliding block; 4: backrest mechanism; 41: first rod group; 411: first rod; 412: first connecting rod; 42: second rod group; 421: second rod; 422: second connecting rod; 43: backrest linkage rod group; 431: first backrest linkage rod; 432: second backrest linkage rod; 5: middle frame group; 51: transition frame; 511: sliding rail; 52: telescopic frame; 521: pulley; 6: expansion frame; 7: second drive assembly; 71: drive rod group; 711: rotating rod; 712: drive rod; 72: second drive piece; 8: linkage rod group; 81: first linkage rod; 82: second linkage rod; 9: limiting structure; 91: upper limiting wheel; 92: lower limiting wheel; 93: connecting piece; 931: horizontal rod; 932: vertical rod; 9321: waist round hole; 10: front leg assembly; 101: front leg drive rod; 102: front leg support rod; 103: front leg linkage rod; 200: double drive telescopic bed; 201: backrest pad; 202: translation pad; 203: telescopic pad; 204: expansion pad. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0018] In the description of the present application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0019] In addition, "first", "second", and the like used herein do not specifically refer to the order or sequence, nor do they limit the present application. They are merely used to distinguish components or operations described by the same technical terms.

[0020] Please refer to Figure 1 and Figure 2This is a perspective view and a partial perspective view of a dual-drive telescopic bed frame according to an embodiment of the present invention. As shown in the figure, the dual-drive telescopic bed frame 100 includes a fixed frame 1, a translation frame 2, a first drive assembly 3, a backrest mechanism 4, a middle frame group 5, an extension frame 6, a second drive assembly 7, and a linkage group 8. The translation frame 2 is movably disposed on the fixed frame 1, meaning that the translation frame 2 can slide along the length direction of the fixed frame 1. The first drive assembly 3 is connected to the translation frame 2. The first drive assembly 3 is used to drive the translation frame 2 to move linearly along the fixed frame 1. In this embodiment, the first drive assembly 3 includes a first drive member 31, a ball screw 32, and a sliding block 33. The first drive member 31 is fixedly disposed on the fixed frame 1. The ball screw 32 is connected to the drive member, and the extension direction of the ball screw 32 is the same as the sliding direction of the translation frame 2 along the fixed frame 1. The sliding block 33 is disposed on the ball screw 32 and connected to the translation frame 2. The first driving component 31 drives the ball screw 32 to rotate, which in turn causes the sliding block 33 to move linearly along the ball screw 32. The sliding block 33 then causes the translation frame 2 to slide along the fixed frame 1. The first driving component 31 uses a drive motor.

[0021] The backrest mechanism 4 is located on one side of the translation frame 2, such as... Figure 1 As shown, the backrest mechanism 4 is located on the right side of the translation frame 2. The backrest mechanism 4 has a first rod group 41 and a second rod group 42. One end of the first rod group 41 is pivotally connected to one end of the fixed frame 1. One end of the second rod group 42 is pivotally connected to the other end of the first rod group 41. The other end of the second rod group 42 is pivotally connected to the translation frame 2. The translation frame 2 adjusts the backrest mechanism 4 by driving the first rod group 41 to rotate around its rotating end through the second rod group 42, specifically adjusting the tilt angle of the backrest mechanism 4 (backrest). In this embodiment, the first rod group 41 includes two parallel first rods 411 and a first connecting rod 412 that connects the two first rods 411 and is horizontally arranged. One end of the two first rods 411 is pivotally connected to the right sides of the fixed frame 1, respectively. The second rod group 42 includes two parallel second rods 421 and a second connecting rod 422 that connects the two second rods 421 and is horizontally arranged. One end of the two second rods 421 is pivotally connected to the upper middle section of the two first connecting rods 412.

[0022] As described above, the backrest mechanism 4 also includes a backrest linkage assembly 43. The backrest linkage assembly 43 is pivotally connected to the other end of the first linkage assembly 41 and the second linkage assembly 42. The backrest linkage assembly 43 is used to connect to the bed frame backrest, and the backrest linkage assembly 43 adjusts the angle of the bed frame backrest by rotating the first linkage assembly 41 through the second linkage assembly 42. In this embodiment, the backrest linkage assembly 43 includes two parallel first backrest linkage rods 431 and two parallel second backrest linkage rods 432. One end of each of the two first backrest linkage rods 431 is pivotally connected to one end of each of the two second backrest linkage rods 432, the other end of each of the two first backrest linkage rods 431 is pivotally connected to the other end of each of the two first rods 411, and the other end of each of the two second backrest linkage rods 432 is pivotally connected to the middle section of each of the two second rods 421.

[0023] The middle frame group 5 is located on the other side of the translation frame 2, as follows: Figure 1 As shown, the backrest mechanism 4 is located on the left side of the translation frame 2. The intermediate frame group 5 has a transition frame 51 and a telescopic frame 52. The transition frame 51 is pivotally connected to the other side of the translation frame 2. The telescopic frame 52 is movably disposed within the transition frame 51, meaning that part of the telescopic frame 52 can slide out of the transition frame 51 along the moving direction of the transition frame 51. In this embodiment, a slide rail 511 is provided on the relatively inner side of the transition frame 51. Pulleys 521 are provided on both sides of the telescopic frame 52. The pulleys 521 are located within the slide rail 511. The telescopic frame 52 extends out of and retracts from the transition frame 51 by sliding along the slide rail 511 via the pulleys 521.

[0024] An extension frame 6 is located on the side opposite to the translation frame 2 of the middle frame group 5 and is pivotally connected to the transition frame 51. A second drive assembly 7 is mounted on the fixed frame 1. The second drive assembly 7 has a drive rod group 71 and a second drive member 72. The drive rod group 71 has opposing rotating ends and driven ends, and the rotating ends of the drive rod group 71 are pivotally connected to the fixed frame 1. The driven ends of the drive rod group 71 are pivotally connected to the extension frame 6. In this embodiment, the drive rod group 71 includes four mutually parallel rotating rods 711 and drive rods 712. The four rotating rods 711 are symmetrically arranged in pairs on both sides of the extension frame 6. The lower ends of the four rotating rods 711 are pivotally connected to the fixed frame 1, and the upper ends of the four rotating rods 711 are pivotally connected to the extension frame 6. The drive rods 712 are horizontally arranged and connected to two rotating rods 711 on the side closer to the middle frame group 5. The second drive member 72 is connected to the drive rod group 71. In this embodiment, the second drive member 72 is connected to the drive rods 712. The second drive unit 72 drives the drive rod assembly 71 to rotate around the rotating end, thereby causing the extension frame 6 to extend and retract the fixed frame 1. The second drive unit 72 uses a drive motor and a transmission rod.

[0025] One end of the linkage rod set 8 is pivoted to the extension frame 6, and the other end of the linkage rod set 8 is pivoted to the telescopic frame 52. The extension frame 6 drives the transition frame 51 to ascend and descend through the linkage rod set 8, so as to drive the telescopic frame 52 to extend and retract the transition frame 51. In the embodiment, the linkage rod set 8 comprises a first linkage rod 81, a second linkage rod 82 and a third linkage rod 83. One end of the first linkage rod 81 is pivoted to the extension frame 6, the second linkage rod 82 is pivoted to the transition frame 51, the other end of the first linkage rod 81 is pivoted to one end of the second linkage rod 82, one end of the second linkage rod 82 is pivoted to one end of the third linkage rod 83, and the other end of the third linkage rod 83 is pivoted to the telescopic frame 52. The extension frame 6 drives the second linkage rod 82 to rotate through the first linkage rod 81, so as to drive the telescopic frame 52 to extend and retract the transition frame 51 through the third linkage rod 83.

[0026] Please refer to Figures 3 to 7 Fig. 5 is a diagram of the unfolding process of the double-drive telescopic bed frame according to the embodiment of the present application. As shown in the figure, when the double-drive telescopic bed frame 100 is unfolded, the first driving assembly 3 and the second driving assembly 7 act simultaneously. The first driving assembly 3 drives the driving translation frame 2 to move linearly along the fixed frame 1, and the translation frame 2 drives the first rod set 41 to rotate around the rotating end thereof through the second rod set 42, so as to adjust the backrest mechanism 4. The second driving member 72 drives the extension frame 6 to extend out of the fixed frame 1 by driving the driving rod set 71 to rotate around the rotating end. In this way, the double-drive mechanism is formed by the first driving assembly 3 and the second driving assembly 7, and the telescopic bed frame is driven to extend and retract through the double-drive mechanism. Thus, strong and effective power can be provided, and the problem of being unable to drive due to excessive load can be avoided.

[0027] As described above, when the extension frame 6 extends, the extension frame 6 drives the transition frame 51 to ascend and descend and move in the direction in which the extension frame 6 extends outward. At the same time, the extension frame 6 drives the telescopic frame 52 to extend out of the transition frame 51 through the linkage rod set 8 as the transition frame 51 ascends, and drives the telescopic frame 52 to retract into the transition frame 51 through the linkage rod set 8 as the transition frame 51 descends. In this way, the soft bag gap can be reduced as the double-drive mechanism moves to extend and retract, so that the soft bag surfaces are always connected together, and the comfort and aesthetic degree can be increased.

[0028] In the embodiment, the double-drive telescopic bed frame 100 further comprises a plurality of limiting structures 9. Each limiting structure 9 comprises an upper limiting wheel 91, a lower limiting wheel 92 and a connecting piece 93. The upper limiting wheel 91 is arranged at the lower end of the translation frame 2 and abuts against the upper end of the fixed frame 1. The lower limiting wheel 92 is connected with the translation frame 2 through the connecting piece 93 and abuts against the lower end of the fixed frame 1. In this way, the translation frame 2 is limited by the upper limiting wheel 91 and the lower limiting wheel 92 to achieve a guide rail-free limiting design, which is simple in structure and production process and high in stability. In the embodiment, the connecting piece 93 comprises a horizontal rod 931 and a vertical rod 932. The upper end of the vertical rod 932 is connected with the translation frame 2. The horizontal rod 931 is connected with the lower end of the vertical rod 932. The lower limiting wheel 92 is arranged on the horizontal rod 931. The lower end of the vertical rod 932 is provided with a waist round hole 9321. The horizontal rod 931 is fixedly connected with the vertical rod 932 by passing through the waist round hole 9321 through a locking piece. In this way, the position of the lower limiting wheel 92 can be adjusted by fixing the position of the waist round hole 9321 through the adjustment locking piece, the gap between the limiting positions is eliminated, the smooth operation of the structure is ensured, and the strength is increased.

[0029] In the embodiment, the double-drive telescopic bed frame 100 further comprises two front leg assemblies 10. The two front leg assemblies 10 are connected with the extension frame 6. Each front leg assembly 10 comprises a front leg driving rod 101, a front leg supporting rod 102 and a front leg connecting rod 103. One end of the front leg driving rod 101 is pivotally connected with the driving rod set 71. The front leg supporting rod 102 is pivotally connected with the other end of the front leg driving rod 101. One end of the front leg connecting rod 103 is pivotally connected with the front leg supporting rod 102. The other end of the front leg supporting rod 102 is pivotally connected with the extension frame 6. When the double-drive telescopic bed frame 100 is unfolded, the driving rod set 71 drives the front leg supporting rod 102 to extend out of the fixed frame 1 to support the extension frame 6 by rotating around the rotating end thereof. When the double-drive telescopic bed frame 100 is folded, the driving rod set 71 drives the front leg supporting rod 102 to retract into the fixed frame 1 by rotating around the rotating end thereof.

[0030] Please refer to Figure 8 and simultaneously refer to Figure 1 and Figure 2 , Figure 8 is a perspective view of a double-drive telescopic bed according to an embodiment of the present application. As shown in the figure, the double-drive telescopic bed 200 comprises the above-mentioned double-drive telescopic bed frame 100 and sequentially connected backrest pad 201, translation pad 202, telescopic pad 203 and extension pad 204. The backrest pad 201 is arranged on the backrest mechanism 4. The translation pad 202 is arranged on the translation frame 2. The telescopic pad 203 is arranged on the telescopic frame 52. The extension pad 204 is arranged on the extension frame 6.

[0031] In summary, the present application provides a double drive telescopic bed frame and a double drive telescopic bed. The present application forms a double drive mechanism through the first drive assembly and the second drive assembly, drives the backrest mechanism, the translation frame, the intermediate frame group, the expansion frame and the second drive assembly through the double drive mechanism to realize the telescopic of the bed frame, so as to provide strong and effective power, avoid the problem of unable to drive due to excessive load. At the same time, the present application is provided with the intermediate frame group between the translation frame and the expansion frame, the intermediate frame group has the telescopic frame, which expands and contracts with the movement of the double drive mechanism, so as to reduce the gap of the soft bag, make the surface of the soft bag always connected together, and increase the comfort and the aesthetic degree.

[0032] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0033] The embodiments of the present application are described above in conjunction with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.

Claims

1. A dual drive telescoping bed frame characterized by, The utility model relates to a kind of chair, including: Fixed frame; Translation frame, movably arranged on the fixed frame; First drive assembly, connected with the translation frame, the first drive assembly is used to drive the translation frame linearly along the fixed frame; Backrest mechanism, arranged on one side of the translation frame, the backrest mechanism has first rod group and second rod group, one end of the first rod group is pivoted with one end of the fixed frame, one end of the second rod group is pivoted with the first rod group, the other end of the second rod group is pivoted with the translation frame; Intermediate frame group, arranged on the other side of the translation frame, the intermediate frame group has transition frame and telescopic frame, the transition frame is pivoted with the other side of the translation frame, the telescopic frame is movably arranged in the transition frame; Expansion frame, arranged on the other side of the intermediate frame group and the translation frame opposite, and is pivoted with the transition frame; Second drive assembly, arranged on the fixed frame, the second drive assembly has drive rod group and second drive piece, the drive rod group has opposite rotating end and driven end, the rotating end of the drive rod group is pivoted with the fixed frame, the driven end of the drive rod group is pivoted with the expansion frame, the second drive piece is connected with the drive rod group; Linkage rod group, one end of which is pivoted with the expansion frame, the other end of the linkage rod group is pivoted with the telescopic frame; Wherein the translation frame is adjusted by the second rod group to drive the first rod group to rotate around its rotating end, the second drive piece drives the expansion frame to extend and retract the fixed frame by driving the drive rod group to rotate around the rotating end, the expansion frame drives the transition frame to lift and simultaneously drives the telescopic frame to extend and retract the transition frame by the linkage rod group.

2. The dual drive murphy bed frame of claim 1, wherein, Further comprising: A plurality of limiting structures, each of the limiting structures includes an upper limiting wheel, a lower limiting wheel, and a connecting member, the upper limiting wheel is arranged on the lower end of the translation frame and abuts against the upper end of the fixed frame, the lower limiting wheel is connected with the translation frame through the connecting member and abuts against the lower end of the fixed frame.

3. The dual drive murphy bed frame of claim 2, wherein, The connecting member includes a horizontal rod and a vertical rod, the upper end of the vertical rod is connected with the translation frame, the horizontal rod is connected with the lower end of the vertical rod, and the lower limiting wheel is arranged on the horizontal rod.

4. The dual drive murphy bed frame of claim 3, wherein, The lower end of the vertical rod is provided with a waist round hole, and the horizontal rod is fixedly connected with the vertical rod by passing through the waist round hole through a locking member.

5. The dual drive murphy bed frame of claim 1, wherein, Further comprising: Two front leg assemblies connected with the expansion frame, each of the front leg assemblies includes a front leg drive rod, a front leg support rod, and a front leg linkage rod, one end of the front leg drive rod is pivoted with the drive rod group, the front leg support rod is pivoted with the other end of the front leg drive rod, one end of the front leg linkage rod is pivoted with the front leg support rod, and the other end of the front leg support rod is pivoted with the expansion frame; Wherein the drive rod group drives the front leg support rod to extend out of the fixed frame to support the expansion frame and retract into the fixed frame by rotating around its rotating end.

6. The dual drive murphy bed frame of claim 1, wherein, The first driving assembly comprises a first driving member, a ball screw and a sliding block, the first driving member is fixedly arranged on the fixed frame, the ball screw is connected with the driving member, and the sliding block is arranged on the ball screw and connected with the translation frame.

7. The dual drive murphy bed frame of claim 1, wherein, The backrest mechanism further comprises a backrest linkage rod set, one end of the backrest linkage rod set is pivotally connected with the other end of the first rod set and the second rod set, the backrest linkage rod set is used for connecting with a backrest of a bed frame, and the backrest linkage rod set drives the first rod set to rotate through the second rod set to adjust the angle of the backrest of the bed frame.

8. The dual drive murphy bed frame of claim 1, wherein, Opposite inner sides of the transition frame are provided with sliding rails, both sides of the telescopic frame are provided with pulleys, the pulleys are located in the sliding rails, and the telescopic frame is extended and retracted from and into the transition frame by sliding along the sliding rails through the pulleys.

9. The dual drive murphy bed frame of claim 1, wherein, The linkage rod set comprises a first linkage rod, a second linkage rod and a third linkage rod, one end of the first linkage rod is pivotally connected with the expansion frame, the second linkage rod is pivotally connected with the transition frame, the other end of the first linkage rod is pivotally connected with one end of the second linkage rod, the other end of the second linkage rod is pivotally connected with one end of the third linkage rod, and the other end of the third linkage rod is pivotally connected with the telescopic frame.

10. A dual drive telescoping bed characterized by, The double-driving telescopic bed frame comprises the backrest mechanism, the translation mechanism, the telescopic mechanism and the expansion mechanism, and the backrest pad, the translation pad, the telescopic pad and the expansion pad are sequentially connected in sequence.

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