Adjusting mechanism

Abstract

The utility model discloses an adjusting mechanism. The adjusting mechanism comprises a middle part, a middle part and a middle part, the middleware is provided with a sliding block capable of sliding in the length direction of the middleware, the sliding block is hinged to a connecting rod, and the other end of the connecting rod is hinged to the side edge assembly. The two side edge assemblies comprise connecting pieces connected with a left side plate and a right side plate in the sofa armrest and rotating pieces for hinging the connecting pieces and the middle piece together, and the connecting rods are hinged to the rotating pieces; the number of the rotating pieces of each side edge assembly is two, the two rotating pieces are hinged to the two ends of the connecting piece respectively, and every two rotating pieces in the different side edge assemblies are hinged to the same hinge point of the middle piece. When the folding mechanism is used, the side edge assemblies move relative to the middle piece, the rotating pieces are hinged to the same point on the middle piece, so that the thickness of the folded structure is reduced, and the sliding blocks on the middle piece can pull the side edge assemblies and the middle piece to form a stable linkage structure; all parts of the adjusting mechanism can be symmetrically arranged and assembled, the manufacturing difficulty is reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to an adjustment mechanism. Background Technology

[0002] During transportation, furniture is often manufactured with foldable structures to reduce packing volume, allowing for quick unfolding and securing during assembly. Patent publication CN 222031946 U discloses an adjustment mechanism, armrest, and sofa. The adjustment mechanism hinges a linkage rod to the linkage ends of a first and second connecting rod. When the adjustment mechanism is subjected to external force, the linkage rod tends to move, allowing the connecting parts to open or close quickly. This adjustment mechanism provides a solution for folding sofa armrests. However, because the first and second connecting rods are on the same plane after folding, the folded thickness is still not less than the sum of the widths of the two connecting rods. Alternatively, the first and second connecting rods could be reshaped to change the symmetrical structure, but this would increase manufacturing costs and reduce assembly efficiency. Furthermore, the lack of a limiting device after folding results in non-parallel connecting parts on both sides, causing the armrest side panels to be non-parallel after folding, ultimately resulting in a V-shaped armrest, wider at one end and narrower at the other. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide an adjustment mechanism that results in a narrower width after folding, a symmetrical structure, and a parallel structure after folding.

[0004] To achieve the above objectives, embodiments of this utility model provide an adjustment mechanism, comprising:

[0005] Intermediate component: It is hinged with a side assembly; the intermediate component is provided with a slider that can slide along the length of the intermediate component, the slider is hinged with a connecting rod, and the other end of the connecting rod is hinged to the side assembly; the two sides of the intermediate component form mutually parallel abutting edges;

[0006] Side components: There are two sets, including connectors that connect to the left and right side panels inside the sofa armrest, and rotating components that hinge the connectors to the middle component. The connecting rod is hinged to the rotating component. Each connector has at least two collinear abutment points. Each side component has two rotating components, and the hinge lengths of the rotating components are equal. The rotating components are respectively hinged to both ends of the connectors. The rotating components in different side components are hinged to the same hinge point of the middle component in pairs. The middle component, rotating components and connectors form a quadrilateral translation mechanism.

[0007] Because the hinge lengths of the rotating parts are equal, after forming a translational mechanism, the connecting parts on both sides can be in a parallel state relative to the middle part at any position.

[0008] The side components move to be close to the middle component, with the contact point abutting against the contact edge, making the two side components parallel to each other.

[0009] According to the adjustment mechanism of this utility model embodiment, the side component moves relative to the middle component during use. Since the rotating component is hinged to the same point on the middle component, the thickness of the folded structure can be further reduced compared to the existing solution. The slider on the middle component can pull the side component and the middle component to stabilize the structure and prevent the side component from moving excessively. The connecting component has added abutment points. After folding, the abutment points can abut against the abutment edge of the middle component, ensuring that the connecting components on both sides are in a parallel state. The various components of this adjustment mechanism can be symmetrically arranged and assembled, reducing manufacturing difficulty and improving assembly efficiency.

[0010] In addition, the adjustment mechanism proposed in the above embodiments of this utility model may also have the following additional technical features:

[0011] Optionally, the intermediate component forms a through groove, the slider slides into the groove, and the connecting rod is hinged to two opposite faces of the slider.

[0012] Furthermore, the two side walls at one end of the slide groove expand outward to form a notch, and the two sides of the corresponding slider protrude to form a protrusion that can be inserted into the notch. The slider slides in the slide groove, and the protrusion restricts the movement of the slider in the axial direction perpendicular to the slide groove.

[0013] Optionally, it also includes a limiting member, which is disposed in the rotation plane of the rotating member to limit the rotation angle of the rotating member.

[0014] Furthermore, the limiting component is a cup-head screw, which is threadedly engaged with the intermediate component, and the head of the cup-head screw can be inserted into the corresponding groove formed by the rotating component. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention, showing its unfolded state at one angle.

[0016] Figure 2 This is a three-dimensional structural view of a state unfolded according to another embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of a closed state at an angle according to an embodiment of the present invention;

[0018] Figure 4 This is a perspective view of a closed state according to another embodiment of the present invention.

[0019] Label Explanation:

[0020] Intermediate component 1 Slide groove 11 Notch 111 Slider 12 Protrusion 121 Connecting rod 13 Abutting edge 14

[0021] Side component 2 connector 21 abutment point 211 rotating component 22

[0022] Limiting component 3. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] When in use, the side components move relative to the middle component. Since the rotating components are hinged to the same point on the middle component, the thickness of the folded structure can be further reduced compared to existing solutions. The slider on the middle component can pull the side components and the middle component to stabilize the structure, preventing the side components from moving excessively. Abutment points are added to the connecting parts. After folding, the abutment points can abut against the abutment edge of the middle component, ensuring that the connecting parts on both sides are in a parallel state. The various components of this adjustment mechanism can be symmetrically arranged and assembled, reducing manufacturing difficulty and improving assembly efficiency.

[0025] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figures 1 to 4 An adjustment mechanism according to an embodiment of the present utility model includes:

[0028] Intermediate component 1: It is hinged with a side component 2; the intermediate component 1 is provided with a slider 12 that can slide along the length of the intermediate component 1, the slider 12 is hinged with a connecting rod 13, and the other end of the connecting rod 13 is hinged to the side component 2; the intermediate component 1 can be a long strip of flat plate, and the slider 12 slides on the flat plate.

[0029] Side component 2: It is provided in two sets, including a connector 21 that connects to the sofa, and a rotating component 22 that hinges the connector 21 and the intermediate component 1 together. The connecting rod 13 is hinged to the rotating component 22. The connector 21 is similar to a corner bracket, which facilitates connection with furniture.

[0030] Each side assembly 2 has two rotating parts 22, each hinged to both ends of the connecting part 21. The rotating parts 22 in different side assemblies 2 are hinged to the same hinge point of the intermediate part 1 in pairs. The intermediate part 1, the rotating parts 22 and the connecting part 21 form a movable quadrilateral structure.

[0031] The method of using this mechanism in furniture can refer to that shown in the background art: it is placed in the armrest so that the armrest can be compressed and thinned during transportation. However, the solution described in the background art uses gear meshing as the structural basis for synchronous movement on both sides. The drawback of this structure is that the smoothness of the movement after gear meshing depends on the assembly precision, which places certain requirements on the assembly operation and parts manufacturing, thus increasing the overall cost. In addition, in the solution of the background art, in order to reduce the thickness of the entire device after folding, the parts are subjected to asymmetrical deformation treatment, which further increases the manufacturing difficulty. Furthermore, due to the characteristics of the structure, the folded armrest is not parallel, with one end being wider than the other.

[0032] In contrast, this solution uses a slider 12-slide groove 11 structure in the linkage structure of the side component 2. The slider 12 moves linearly, and the connecting rod 13, which is respectively hinged to the slider 12 and the side component 2, pulls the side component 2 when the slider 12 moves, so that the side component 2 changes from a folded state to a rectangle, or vice versa. The movement length of the slider 12 is limited by the length of the slide groove 11, thus determining the final shape of the side component 2 after folding and unfolding.

[0033] In addition, the two sides of the middle piece 1 form parallel abutment edges 14, which, together with the two collinear abutment points 211 formed on the connector 21, can keep the overall structure parallel in the folded state, especially the sofa armrests on the connector can be parallel to each other.

[0034] Specifically, the two ends of the cross-section of the connector 21 are L-shaped and the middle is I-shaped. By forming an irregular hollow in the middle I-shaped cross-section, abutment point 211 can be formed locally on the connector. Another abutment point can be another area on the same connector 21, which can be used to contact the abutment edge 14 of the middle part. Through the collinear and parallel geometric structure of the contacting parts, the connector 21 can ultimately maintain mutual balance when the structure is folded and closed.

[0035] Optionally, the intermediate part 1 forms a through groove 11, and the slider 12 slides into the groove 11. Connecting rods 13 are hinged on the two opposite surfaces of the slider 12. With this solution, combined with the previously mentioned use of a long strip plate for the intermediate part 1, the groove 11 can be directly formed by stamping, which is simple to manufacture and the finished product does not need to distinguish between the front and back sides for assembly.

[0036] Based on the above scheme, the two side walls of one end of the slide groove 11 expand outward to form a notch 111. The two sides of the slider 12 form a protrusion 121 that can be inserted into the notch 111. The slider 12 slides in the slide groove 11. The protrusion 121 restricts the movement of the slider 12 in the axial direction perpendicular to the slide groove 11. In this scheme, one cross-sectional shape of the slider 12 is I-shaped. The protrusions above and below the I-shaped shape can be inserted into the slide groove 11 and will not fall off. By extending the extra length through the slide groove 11, after this scheme is assembled, the slider 12 will not slide out of the notch 111 within the range of motion.

[0037] It's acceptable. The bumps 121 are not symmetrically arranged. One side of the bumps 121 is larger than the other side, meaning that the slider 12 can only enter the notch 111 from one side and be assembled in the groove 11, which reduces the assembly complexity.

[0038] Optionally, it also includes a limiting member 3, which is disposed in the rotation plane of the rotating member 22 to limit the rotation angle of the rotating member 22.

[0039] Furthermore, the limiting component 3 is a cup-head screw, which is threadedly engaged with the intermediate component 1, and the head of the cup-head screw can be inserted into the corresponding groove formed by the rotating component 22.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjusting mechanism, characterized in that: include Intermediate component: It is hinged with a side assembly; the intermediate component is provided with a slider that can slide along the length of the intermediate component, the slider is hinged with a connecting rod, and the other end of the connecting rod is hinged to the side assembly; the two sides of the intermediate component form mutually parallel abutting edges; Side assembly: There are two sets, including connectors that connect to the left and right side panels inside the sofa armrest, and rotating parts that hinge the connectors to the middle part, with the connecting rod hinged to the rotating parts; each connector has at least two collinear abutment points; Each side assembly has two rotating parts, and the hinge lengths of the rotating parts are equal; the rotating parts are respectively hinged to both ends of the connecting part; Rotating components in different side assemblies are hinged to the same hinge point in the middle component in pairs; the middle component, rotating components, and connecting components form a quadrilateral translational mechanism. The side components move to be close to the middle component, with the contact point abutting against the contact edge, making the two side components parallel to each other.

2. The adjusting mechanism as described in claim 1, characterized in that: The intermediate component forms a through groove, the slider is inserted into the groove and slides, and the connecting rod is hinged to two opposite surfaces of the slider.

3. The adjusting mechanism as described in claim 2, characterized in that: The two side walls of one end of the slide groove expand outward to form a notch, and the two sides of the corresponding slider protrude to form a protrusion that can be inserted into the notch. The slider slides in the slide groove, and the protrusion restricts the movement of the slider in the axial direction perpendicular to the slide groove.

4. The adjusting mechanism as described in claim 1, characterized in that: It also includes a limiting member, which is disposed in the rotation plane of the rotating member to limit the rotation angle of the rotating member.

5. The adjusting mechanism as described in claim 4, characterized in that: The limiting component is a cup-head screw, which is threadedly engaged with the intermediate component. The head of the cup-head screw can be inserted into the corresponding groove formed by the rotating component.

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