Folding mechanism and electric bed

Abstract

The utility model discloses a folding mechanism and an electric bed, a folding hinge of a bed body comprises the following parts: two positioning pieces, which are respectively and fixedly connected with two parts which move relatively; a connecting piece; the rotating shafts are connected with the connecting piece in an inserted mode, the rotating shafts correspond to the positioning pieces one to one, and each positioning piece is connected with the connecting piece in a relatively rotating mode through the corresponding rotating shaft; the two limiting pins are fixedly connected with the connecting piece, the limiting pins correspond to the positioning pieces one to one, the positioning pieces are provided with guide holes extending in an arc shape in the folding / unfolding direction, and the limiting pins are movably inserted into the guide holes in a matched mode. The bed body is guided to be smoothly folded and unfolded along the guide hole by utilizing the movable matching relationship between the limiting pin and the guide hole, and the folding and unfolding positions of the bed body are limited, so that the phenomena of dislocation and twisting are avoided.

Description

Technical Field

[0001] The utility model relates to a bed, in particular to a folding bed. Background Art

[0002] Most existing beds (especially electric beds) are designed to be foldable in order to reduce floor space and save space, thereby improving transportation efficiency and reducing transportation costs.

[0003] The prior art discloses an intelligent folding electric bed with publication number CN111000397A, which includes a bed frame body consisting of a first bed frame assembly and a second bed frame assembly, a panel provided on the upper surface of the bed frame body, bed legs installed on the lower surface of the bed frame body, and a roller assembly; the adjacent ends of the first bed frame assembly and the second bed frame assembly are pivotally coupled to achieve an unfolded state or a folded state of the bed frame body; the roller assembly is pivotally coupled to one end of the bed frame body and can rotate relative to the bed frame body to match the above-mentioned unfolded state or folded state.

[0004] However, in the prior art, the folding hinges of electric beds lack reliable limiting means during the folding and unfolding process, which causes the existing electric beds to easily misalign and twist after folding. Utility Model Content

[0005] The purpose of the utility model is to provide a folding mechanism and an electric bed, which ensure that the entire mechanism will not be misplaced or twisted after folding, and can complete the folding action more smoothly compared to a conventional folding bed.

[0006] The purpose of the present invention is achieved as follows: a folding mechanism includes a foldable bed body having at least one folding hinge, wherein the folding hinge of the bed body includes the following parts:

[0007] Two positioning pieces, the two positioning pieces respectively fixedly connect the two relatively movable parts;

[0008] a connecting piece;

[0009] Two rotating shafts, the rotating shafts are plugged into the connecting pieces, the rotating shafts correspond to the positioning pieces one by one, and each positioning piece is connected to the connecting piece in a relatively rotatable manner via the corresponding rotating shaft;

[0010] Two limit pins, the limit pins are fixedly connected to the connecting piece, the limit pins correspond to the positioning piece one by one, the positioning piece is provided with a guide hole extending in an arc shape along the folding / expanding direction, and the limit pins are movably plugged into the guide hole.

[0011] Furthermore, the two ends of the guide hole are respectively defined as a first end and a second end. When the bed is flattened, the two limit pins both abut the first end of the guide hole. When the bed is folded, the two limit pins both abut the second end of the guide hole.

[0012] Furthermore, the bed is configured to be a structure that can be folded and flattened.

[0013] As another aspect of the present invention, an electric bed equipped with the above-mentioned folding mechanism is provided, wherein the bed body includes a bed frame, a bed board portion, and a driving component for driving a movable portion of the bed board portion to move, wherein the bed frame is configured as a frame structure, the bed frame is configured as two parts that can be folded and unfolded, and the folding point is configured as a folding hinge of the bed body, two positioning members of the folding hinge respectively fixedly connect the two parts of the bed frame, and the bed board portion is detachably arranged at the position of the folding hinge;

[0014] When the bed body is folded, the bed frame is relatively close to each other and together with the bed board part located outside, forms a packaging space for accommodating the driving component, and the driving component is located in the packaging space.

[0015] The beneficial effects of the present invention are:

[0016] 1. The movable cooperation relationship between the limit pin and the guide hole is used to guide the bed to fold and unfold smoothly along the guide hole, so that the folding and unfolding process of the bed has good guidance and stability;

[0017] 2. When the bed is folded and flattened, the limit pins are used to respectively abut the two ends of the guide hole, thereby limiting the folding and flattening positions of the bed to avoid misalignment and twisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a usage state diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the flattened state of the utility model.

[0020] Figure 3 It is a schematic diagram of the deformed state of the bed board of the present invention.

[0021] Figure 4 It is a schematic diagram of the folding hinge position of the bed.

[0022] Figure 5 yes Figure 4 Enlarged view of part A in .

[0023] Figure 6 It is a bird's-eye view of the present invention.

[0024] Figure 7 yes Figure 6 BB cross-section view in.

[0025] Figure 8 yes Figure 7 Enlarged view of part C in .

[0026] Figure 9 It is a schematic diagram of the folding process of the bed.

[0027] Figure 10 It is a schematic diagram of the state in which the bed is completely folded.

[0028] Figure 11 It is a three-dimensional schematic diagram of the bed after it is folded. DETAILED DESCRIPTION

[0029] The following is a combination of the appended examples of the present invention Figure 1-11 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] like Figure 1-3 As shown, an electric bed is proposed, the bed body of the electric bed includes a bed frame 1, a bed board part 2, and a driving component for driving the movable part of the bed board part 2 to move; the bed body as a whole is an ultra-thin structure with a thickness not exceeding 70mm (or other dimensions), and no matter how the size changes, it is within the protection scope defined by this patent.

[0031] The bed frame 1 is configured as a frame structure, adopting a dual-axis folding scheme. The bed frame 1 is configured as two parts that can be folded and flattened (that is, the bed body is configured as a structure that can be folded and flattened), and its folding point is configured as a folding hinge of the bed body. The two positioning members 12 of the folding hinge respectively fix the two parts of the bed frame 1, and the bed board part 2 can be detachably arranged at the position of the folding hinge, that is, the bed board part 2 can be divided into two parts in the folded position.

[0032] When the bed is folded, the bed frame 1 is relatively close to each other, and together with the two parts of the bed board part 2 on the outside, it forms a packaging space for accommodating the driving components. The driving components do not need to be disassembled and are all in the packaging space. Only the bed legs need to be removed for easy transportation. When the bed is folded, the two parts of the bed board part 2 are just parallel to each other, thus forming a rectangular flat packaging structure.

[0033] When the bed is flattened for use, no components extend beyond the bottom surface of the bed frame 1 and all the bed legs can be removed for use.

[0034] It is worth noting that the bed frame 1 in this embodiment is a structure that can be folded in half front to back. Therefore, the bed frame 1 in this embodiment is divided into a front frame body 101 and a rear frame body 102, and both the front frame body 101 and the rear frame body 102 are C-shaped structures; when flattened, the bed frame 1 formed by the combination of the front frame body 101 and the rear frame body 102 is a rectangular frame structure; when folded, the front frame body 101 and the rear frame body 102 overlap up and down, and together with the two parts of the separated bed board part 2, form a relatively closed packaging space to accommodate all driving components.

[0035] like Figure 1-3 As shown, referring to the prior art, the bed board part 2 is divided into a back board 201, a hip board 202, a leg board 203 and a foot board 204, and the driving components include a head motor 3 (linear motor), a foot motor 5 (linear motor), a first load-bearing seat 4, a second load-bearing seat 6, and also include a movable support assembly, the movable support assembly includes a head linkage shaft 7 and a head rotation bracket 8, and also includes a foot linkage shaft 9 and a foot rotation bracket 10.

[0036] The two ends of the head motor 3 are respectively rotatably connected to the bed frame 1 and the first load-bearing seat 4. The first load-bearing seat 4 is fixedly connected to the head linkage shaft 7. The head rotation bracket 8 is fixedly connected to the head linkage shaft 7 and rotatably connected to the support roller. The head rotation bracket 8 is driven by the head motor 3, and the head rotation bracket 8 rolls and supports the back plate 201, thereby realizing the lifting and lowering of the back plate 201.

[0037] The front of the leg plate 203 is rotated and connected to the bed frame 1, and the back of the leg plate 203 is rotated and connected to the foot plate 204. The two ends of the movable connecting rod 11 are respectively rotated and connected to the bed frame 1 and the foot plate 204. The leg plate 203, the foot plate 204 and the movable connecting rod 11 form a linked quadrilateral mechanism; the two ends of the foot motor 5 are respectively rotated and connected to the bed frame 1 and the second load-bearing seat 6, the second load-bearing seat 6 is fixedly connected to the foot linkage shaft 9, the foot rotating bracket 10 is fixedly connected to the foot linkage shaft 9 and is rotatably connected to the support roller, and the foot rotating bracket 10 is driven by the foot motor 5 to roll and support the leg plate 203, thereby realizing the lifting and lowering of the leg plate 203.

[0038] The folding mechanism of the electric bed is configured as follows.

[0039] The folding mechanism comprises a foldable bed with a folding hinge, and the folding hinge of the bed comprises the following parts:

[0040] Two plate-shaped positioning members 12, the two positioning members 12 are respectively fixedly connected to the two relatively movable parts, that is, the two positioning members 12 are respectively fixedly connected to the ends of the front frame body 101 and the rear frame body 102;

[0041] a plate-shaped connecting member 13;

[0042] Two rotating shafts 14 are connected to the connecting member 13. The rotating shafts 14 correspond to the positioning members 12 one by one. Each positioning member 12 is connected to the connecting member 13 through the corresponding rotating shaft 14 so as to rotate relative to the connecting member 13.

[0043] Two limit pins 15 are fixedly connected to the connecting member 13. The limit pins 15 correspond one-to-one to the positioning member 12. The positioning member 12 is provided with a guide hole 12a extending in an arc shape along the folding / expanding direction. The limit pins 15 are movably inserted into the guide hole 12a, so that the bed can be folded and unfolded along the length direction of the guide hole 12a.

[0044] Among them, Figure 4 、 5 As shown, there are two sets of folding hinges for the bed, which are symmetrically distributed left and right. One hinge connects the left arm end of the front frame 101 and the left arm end of the rear frame 102, and the other hinge connects the right arm end of the front frame 101 and the right arm end of the rear frame 102.

[0045] As a structural optimization solution, such as Figure 8 、 10 As shown, the guide hole 12a is set as a 90° arc hole to limit the folding and unfolding positions, which can well limit the structural form of the folding and flattening of the bed. The guide holes 12a of the two positioning parts 12 are symmetrically distributed based on the folding position points of the front frame 101 and the rear frame 102, and the center of the arc extension line of the guide hole 12a coincides with the central axis of the rotating shaft 14.

[0046] like Figure 8 、 10 As shown, the two ends of the guide hole 12a are defined as a first end 121 and a second end 122 respectively. When the bed is flattened, the two limit pins 15 both abut the first end 121 of the guide hole 12a. When the bed is folded, the two limit pins 15 both abut the second end 122 of the guide hole 12a.

[0047] like Figure 6-8 As shown, when the bed is in a flattened state, the limiting pin 15 is stuck in the first end 121 (the first end 121 is at the bottom) of the guide hole 12a of the positioning member 12, limiting the flattened shape of the entire mechanism to ensure that the entire mechanism will not collapse.

[0048] like Figure 8-10 As shown, during the folding process, the two positioning members 12 rotate relative to each other around their respective rotating shafts 14. Compared with conventional dual-axis folding, this embodiment utilizes the limiting function of the guide hole 12a and the limiting pin 15, so that the two positioning members 12 rotate around their respective rotating shafts 14 by 0 to 90 degrees, thereby ensuring that there will be no structural interference between the two positioning members 12 during the folding process.

[0049] After folding, Figure 10-11As shown, the limit pin 15 is stuck in the second end 122 of the guide hole 12a of the positioning member 12, limiting the folding shape of the entire mechanism, thereby ensuring that the entire mechanism will not be misplaced or twisted. Compared with the conventional two-axis folding mechanism, the structure of this embodiment can complete the folding action more smoothly.

[0050] As a structural optimization solution, the limit pin 15 and the rotating shaft 14 are both circular shaft structures. Based on the side view of the bed, as shown in FIG. Figure 8 As shown, when the bed is flattened, the line connecting the center of the limit pin 15 and the center of the rotating shaft 14 is parallel to the length direction of the bed, so as to well define the flattened position of the bed; Figure 10 As shown, when the bed is folded, the line connecting the center of the limiting pin 15 and the center of the rotating shaft 14 is perpendicular to the length direction of the bed, so as to well define the folding position of the bed.

[0051] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in the present invention, it should also be noted that the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate connecting component, and the specific meaning of the terms in this utility model can be understood based on the specific circumstances.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

[0053] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A folding mechanism, characterized in that: The invention comprises a foldable bed body having at least one folding hinge, wherein the folding hinge of the bed body comprises the following parts: Two positioning members (12), the two positioning members (12) respectively fixedly connect the two relatively movable parts; a connecting member (13); Two rotating shafts (14), the rotating shafts (14) are plugged into the connecting member (13), the rotating shafts (14) correspond to the positioning members (12) one by one, and each positioning member (12) is connected to the connecting member (13) in a relatively rotatable manner via the corresponding rotating shaft (14); Two limit pins (15), the limit pins (15) are fixedly connected to the connecting member (13), the limit pins (15) correspond to the positioning member (12) one by one, the positioning member (12) is provided with a guide hole (12a) extending in an arc shape along the folding / unfolding direction, and the limit pins (15) are movably plugged into the guide hole (12a).

2. A folding mechanism according to claim 1, characterized in that: The two ends of the guide hole (12a) are respectively defined as a first end (121) and a second end (122); when the bed is flattened, the two limit pins (15) both abut against the first end (121) of the guide hole (12a); when the bed is folded, the two limit pins (15) both abut against the second end (122) of the guide hole (12a).

3. A folding mechanism according to claim 1, characterized in that: The folding hinges of the bed body are provided in two sets and are symmetrically distributed left and right.

4. A folding mechanism according to claim 2, characterized in that: The bed is configured as a structure that can be folded and flattened.

5. The folding mechanism according to claim 2, characterized in that: The guide holes (12a) of the two positioning members (12) are symmetrically distributed with respect to each other.

6. A folding mechanism according to claim 5, characterized in that: The center of the arc-shaped extension line of the guide hole (12a) coincides with the central axis of the rotating shaft (14).

7. A folding mechanism according to claim 6, characterized in that: Based on the side view of the bed, when the bed is flattened, the line connecting the center of the limit pin (15) and the center of the rotating shaft (14) is parallel to the length direction of the bed.

8. A folding mechanism according to claim 7, characterized in that: Based on the side view of the bed, when the bed is folded, the line connecting the center of the limit pin (15) and the center of the rotating shaft (14) is perpendicular to the length direction of the bed.

9. A folding mechanism according to any one of claims 1 to 8, characterized in that: The guide hole (12a) is set as a 90° arc hole.

10. An electric bed equipped with the folding mechanism according to claim 4, characterized in that: The bed body comprises a bed frame (1), a bed board part (2), and a driving component for driving the movable part of the bed board part (2) to move, the bed frame (1) is set as a frame structure, the bed frame (1) is set as two parts that can be folded and flattened, and the folding point is set as a folding hinge of the bed body, two positioning members (12) of the folding hinge respectively fix the two parts of the bed frame (1), and the bed board part (2) can be detachably arranged at the position of the folding hinge; When the bed body is folded, the bed frame (1) is relatively close to each other and together with the bed board part (2) located outside, forms a packaging space for accommodating the driving component, and the driving component is located in the packaging space.

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