Multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods

Abstract

The utility model relates to the technical field of folding and unfolding mechanisms, and discloses a multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods, which comprises a motor, a ball screw, an expansion plate, a connecting rod group, a connecting framework, a first connecting surface and a second connecting surface. Dynamic unfolding and folding of multiple layers are achieved through the novel structure, and the folding mechanism has the advantages of being low in noise during operation, stable enough, smooth in mechanical structure action, free of blocking and obvious in dynamic effect change.

Description

Technical Field

[0001] The utility model relates to the technical field of folding and unfolding mechanisms, in particular to a multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods. Background Art

[0002] With the development of society, people have higher and higher demands for the interactivity of life and products, and their dependence on static products is gradually decreasing. People hope that products can have actions similar to emotional expression to interact with people, and hope that objects can move and produce changing effects.

[0003] In the existing market, especially for some folding and opening mechanism designs, the folding and opening operations of a single side are performed through a connecting rod mechanism, which lacks innovation.

[0004] Therefore, improvements need to be made. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods in order to solve the problems raised in the above-mentioned background technology in view of the defects existing in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods, comprising: a motor, a ball screw is provided at the rotating end of the motor, an expansion plate is installed on the motor, and a first hinge hole distributed in a circumferential array is provided on the expansion plate; a fixed plate, the fixed plate is provided with a second hinge hole distributed in a circumferential array, a ball screw nut is fixed on the fixed plate, the fixed plate is sleeved on the ball screw through the ball screw nut, a connecting rod group, the connecting rod group is distributed in a circumferential array on the fixed plate, one end of the connecting rod group is connected to the first hinge hole, and the other end of the connecting rod group is connected to the second hinge hole; a connecting frame, the The connecting skeleton is distributed in a circular array, and the connecting skeleton is connected to the connecting rod group. The connecting skeleton includes a first mounting bar, one or more serial rods and one or more second mounting bars; wherein, the first mounting bar is connected to the connecting rod group; the second mounting bar is arranged above the first mounting bar, and the serial rods are respectively connected to the first mounting bar and the second mounting bar, the first mounting bar is laid and connected to the first connecting surface, and the second mounting bar is laid and connected to the second connecting surface; wherein, when the motor drives the ball screw to rotate, the connecting rod group drives the connecting skeleton to open or close, and then drives the first connecting surface and the second connecting surface to open or close synchronously.

[0007] Furthermore, the connecting rod group includes a first rod and a second rod, the first end of the first rod is hinged to the first hinge hole, the second end of the first rod is hinged to the first end of the second rod, and the second end of the second rod is hinged to the second hinge hole.

[0008] Furthermore, the first connecting surface is provided with a first bending line between adjacent first mounting strips.

[0009] Furthermore, the second connecting surface is provided with a second bending line between adjacent second mounting strips.

[0010] Further, the first connecting surface includes more than one first surface, more than one second surface and more than one third surface; the first surface is connected to the first mounting bar, and the second surface is connected to the third surface; wherein the second surface and the third surface are arranged between adjacent first mounting bars, and the first bending line is arranged between the second surface and the trihedron.

[0011] Further, the second connecting surface includes more than one fourth face, more than one fifth face and more than one sixth face; the fourth face is connected to the second mounting bar, and the fifth face is connected to the sixth face; wherein the fifth face and the sixth face are arranged between adjacent second mounting bars, and the second bending line is arranged between the fifth face and the sixth face

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. An expansion plate is used on the motor, a first hinge hole is set on the expansion plate, a second hinge hole is set through the fixed plate, and a connecting rod group is used for connection to provide constraints and stability for the structure. When the motor is driven, the movement of the ball screw drives the connecting frame to open or close through the connecting rod group. A first mounting bar and multiple second mounting bars are set on the connecting frame. The first mounting bar and the second mounting bar are used to construct multiple layers to achieve folding and opening of multiple layers, which has a more dynamic visual effect.

[0014] 2. A new type of connection drive method is designed, and an additional folding and unfolding mechanism is provided for implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 yes Figure 1 Another angle diagram of the structure.

[0017] Figure 3 It is a partial structural schematic diagram of the utility model.

[0018] Figure 4 It is a partial structural schematic diagram of the utility model.

[0019] Figure 5 It is a partial structural schematic diagram of the utility model.

[0020] Figure 6 It is a structural diagram of the connecting rod group.

[0021] Figure 7 It is a partial structural schematic diagram of the utility model.

[0022] Figure 8 It is a use schematic diagram of the utility model.

[0023] Fig. 9 is a schematic diagram of a first connection surface and a second connection surface.

[0024] Fig.10 It is a use schematic diagram of the utility model.

[0025] Fig.11 It is a structural schematic diagram of the first connection surface.

[0026] Fig.12 Schematic diagram of the structure of the second connection surface.

[0027] : Figure numerals: 1. motor; 2. ball screw; 3. expansion plate; 4. first hinge hole; 5. fixing plate; 6. second hinge hole; 7. connecting rod group; 8. connecting frame; 9. first rod; 10. second rod; 11. first mounting bar; 12. series rod; 13. second mounting bar; 14. first connecting surface; 15. second connecting surface; 16. first bending line; 17. second bending line; 18. ball screw nut; 19. first face; 20. second face; 21. third face; 22. fourth face; 23. fifth face; 24. sixth face. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meanings of "several" and "multiple" are two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] like Figure 1-10As shown, a multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods is provided, including: a motor 1, a ball screw 2 is provided at the rotating end of the motor 1, an expansion plate 3 is installed on the motor 1, and the expansion plate 3 is provided with a first hinge hole 4 distributed in a circumferential array; a fixed plate 5, the fixed plate 5 is provided with a second hinge hole 6 distributed in a circumferential array, a ball screw nut 18 is fixed on the fixed plate 5, and the fixed plate 5 is sleeved on the ball screw 2 through the ball screw nut 18, a connecting rod group 7, the connecting rod group 7 is distributed in a circumferential array on the fixed plate 5, one end of the connecting rod group 7 is connected to the first hinge hole 4, and the other end of the connecting rod group 7 is connected to the second hinge hole 6; a connecting skeleton 8, the connecting skeleton 8 is distributed in a circumferential array, and the The connecting skeleton 8 is connected to the connecting rod group 7, and the connecting skeleton 8 includes a first mounting bar 11, one or more serial rods 12 and one or more second mounting bars 13; wherein, the first mounting bar 11 is connected to the connecting rod group 7; the second mounting bar 13 is arranged above the first mounting bar 11, and the serial rod 12 is respectively connected to the first mounting bar 11 and the second mounting bar 13, the first mounting bar 11 is laid and connected to the first connecting surface 14, and the second mounting bar 13 is laid and connected to the second connecting surface 15; wherein, when the motor 1 drives the ball screw to rotate, the connecting rod group 7 drives the connecting skeleton 8 to open or close, and then drives the first connecting surface 14 and the second connecting surface 15 to open or close synchronously.

[0031] In the above technical solution, the fixing plate 5 is fixed, the fixing plate 5 is immovable, the ball screw 2 nut is fixedly installed on the fixing plate 5, the ball screw 2 is set at the rotating end of the motor 1, the ball screw 2 passes through the ball screw 2 nut, the expansion plate 3 is installed on the motor 1, and the expansion plate 3 is provided with a suitable number of first hinge holes 4 according to the actual implementation situation, the first hinge holes 4 are evenly distributed in a circular array, the fixing plate 5 and the expansion plate 3 are arranged opposite to each other, and the second hinge holes 6 are arranged on the fixing plate 5 at the positions corresponding to the first hinge holes 4, and the number of the second hinge holes 6 is the same as the number of the first hinge holes 4. The expansion plate 3 and the fixing plate 5 are connected by a connecting rod group 7, the connecting rod group 7 is connected to the first hinge hole 4 and the second hinge hole 6, the connecting rod group 7 provides constraints and supports, and the connecting skeleton 8 is used to connect with the connecting rod group 7.

[0032] The connecting skeleton 8 may be a first mounting bar 11, one or more second mounting bars 13 and a series rod 12, and the second mounting bars 13 are sequentially stacked on the first mounting bar 11 to form a multi-layer skeleton structure. For example, when one second mounting bar 13 is arranged on the first mounting bar 11, a double-layer skeleton is formed. When two second mounting bars 13 are arranged on the first mounting bar 11, a three-layer skeleton is formed. The specific number of layers of the skeleton structure can be selected according to the actual implementation situation, and there is no limitation on this. Figure 1 and Figure 2 In this embodiment, a three-layer skeleton structure is used for explanation. In implementation, a plurality of first mounting bars 11 are arranged in a circular distribution form. A selectable second mounting bar 13 is stacked to correspond to the first mounting bar 11. The second mounting bar 13 is connected to the first mounting bar 11 using a series rod 12. When the motor 1 is driven, the second mounting bar 13 and the first mounting bar 11 are folded and unfolded synchronously.

[0033] The first connection surface 14 is used to lay and connect to the first installation bar 11. When in use, the first connection surface 14 can be selected to be installed on the first installation bar 11, the first connection surface 14 forms an umbrella shape, and the second connection surface 15 is used to lay and connect to the second installation bar 13. When the connection frame 8 selects multiple layers of second installation bars 13, the second connection surfaces 15 are also used to connect to the second installation bars 13.

[0034] During use, the motor 1 is driven, and since the fixed plate 5 is fixed, the motor 1 and the ball screw 2 move linearly. During the movement, the connecting rod group 7 between the fixed plate 5 and the expansion plate 3 rotates, thereby prompting the connecting frame 8 to open or close. When the motor 1 is driven, the first connecting surface 14 and the second connecting surface 15 move with the connecting rod group 7 to achieve multi-layer folding and unfolding, thereby achieving a dynamic effect.

[0035] Since a circular array of connecting rod groups 7 are used for connection, constraints and stability are provided for the structure during driving, and the ball screw 2 is used for movement, the process is smoother, without abnormal noise, and is less likely to get stuck.

[0036] refer to Figure 6 As shown, the connecting rod group 7 includes a first rod member 9 and a second rod member 10, the first end of the first rod member 9 is hinged to the first hinge hole 4, the second end of the first rod member 9 is hinged to the first end of the second rod member 10, and the second end of the second rod member 10 is hinged to the second hinge hole 6.

[0037] In a specific implementation, the connecting rod group 7 is composed of a first rod 9 and a second rod 10, and the connecting rod group 7 is hinged. The first rod 9 is hinged to the first hinge hole 4, and the second rod 10 is hinged to the second hinge hole 6. When the motor 1 is driven, the rotation of the first rod 9 and the second rod 10 drives the connecting frame 8 to open or close.

[0038] Preferably, the first connection surface 14 is provided with a first bending line 16 between adjacent first installation bars 11 . The second connection surface 15 is provided with a second bending line 17 between adjacent second installation bars 13 .

[0039] To facilitate bending of the first connecting surface 14 and the second connecting surface 15, a first bending line 16 is provided on the first connecting surface 14 and a second bending line 17 is provided on the second connecting surface 15, so that bending movement along the bending lines can produce effective shape changes.

[0040] The first connecting surface 14 includes one or more first face bodies 19, one or more second face bodies 20 and one or more third face bodies 21; the first face body 19 is connected to the first mounting bar 11, and the second face body 20 is connected to the third face body 21; wherein the second face body 20 and the third face body 21 are arranged between adjacent first mounting bars 11, and the first bending line 16 is arranged between the second face body 20 and the trihedron.

[0041] In the specific implementation, refer to Figure 8-10 As shown, the first connecting surface mainly includes a plurality of first face bodies 19, a plurality of second face bodies 20 and a plurality of third face bodies 21. The first face bodies 19, the second face bodies 20 and the third face bodies 21 are sequentially connected end to end and closed. The number of the first face bodies 19 is the same as the number of the first mounting strips. The first face bodies 19 are mounted with the first mounting strips, and the first side edge of the second face body 20 is connected with the edge of the first face body 19, and the second side edge of the second face body 20 is connected with the edge of the third face body 21. The edge connection position of the second face body 20 and the third face body 21 is set as a first bending line, and the other edge of the third face body 21 is connected with the edge of the next first face body 19, and they are arranged reciprocatingly in sequence.

[0042] Utilizing the above-mentioned structural design, during the opening process, the motor 1 drives the ball screw 2 to rotate, and the motor 1 and the ball screw 2 move, driving the connecting rod group 7 to expand outward, and at the same time driving the connecting frame 8 to expand outward. At the same time, the first face body 19 follows the first mounting bar 11 to expand outward. Since the adjacent first mounting bar 11 is expanded, the second face body 20 and the third face body 21 are driven to expand along the first bending line, thereby achieving a dynamic expansion effect.

[0043] During the closing process, the motor 1 reverses to drive the ball screw 2 to rotate, and the motor 1 and the ball screw 2 move in opposite directions, driving the connecting rod group 7 to retract inward, and at the same time driving the connecting frame 8 to retract inward. At the same time, the first surface body 19 follows the first mounting bar 11 to retract inward. Due to the contraction of the adjacent first mounting bar 11, the second surface body 20 and the third surface body 21 are driven to fold and contract along the first bending line 16, thereby achieving a dynamic closing effect.

[0044] The second connecting surface 15 includes one or more fourth faces 22, one or more fifth faces 23 and one or more sixth faces 24; the fourth faces 22 are connected to the second mounting bar 13, and the fifth faces 23 are connected to the sixth faces 24; wherein the fifth faces 23 and the sixth faces 24 are arranged between adjacent second mounting bars 13, and the second bending line 17 is arranged between the fifth faces 23 and the sixth faces 24.

[0045] The structure and principle of the second connection surface 15 are the same as those of the first connection surface 14 , and reference may be made to the structure and principle of the first connection surface, and no further description will be given.

[0046] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multi-layer folding and unfolding mechanism driven by multiple sets of connecting rods, characterized in that: include: A motor, wherein a ball screw is provided at a rotating end of the motor, an expansion plate is installed on the motor, and the expansion plate is provided with first hinge holes distributed in a circumferential array; A fixing plate, wherein the fixing plate is provided with second hinge holes distributed in a circumferential array, a ball screw nut is fixedly provided on the fixing plate, and the fixing plate is sleeved on the ball screw through the ball screw nut. A connecting rod group, wherein the connecting rod group is distributed in a circular array on the fixing plate, one end of the connecting rod group is connected to the first hinge hole, and the other end of the connecting rod group is connected to the second hinge hole; A connecting skeleton, the connecting skeleton is distributed in a circumferential array, the connecting skeleton is connected to the connecting rod group, the connecting skeleton includes a first mounting bar, one or more serial rods and one or more second mounting bars; wherein the first mounting bar is connected to the connecting rod group; the second mounting bar is arranged above the first mounting bar, the serial rods are respectively connected to the first mounting bar and the second mounting bar, the first mounting bar is laid and connected to the first connecting surface, and the second mounting bar is laid and connected to the second connecting surface; When the motor drives the ball screw to rotate, the connecting rod assembly drives the connecting frame to open or close, thereby driving the first connecting surface and the second connecting surface to open or close synchronously.

2. The multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods according to claim 1, characterized in that: The connecting rod assembly includes a first rod and a second rod, the first end of the first rod is hinged to the first hinge hole, the second end of the first rod is hinged to the first end of the second rod, and the second end of the second rod is hinged to the second hinge hole.

3. The multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods according to claim 2, characterized in that: The first connecting surface is provided with a first bending line between adjacent first mounting strips.

4. The multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods according to claim 3, characterized in that: The second connecting surface is provided with a second bending line between adjacent second mounting strips.

5. The multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods according to claim 3, characterized in that: The first connecting surface includes at least one first surface, at least one second surface and at least one third surface; the first surface is connected to the first mounting bar, and the second surface is connected to the third surface; wherein the second surface and the third surface are arranged between adjacent first mounting bars, and the first bending line is arranged between the second surface and the trihedron.

6. The multi-layer folding and unfolding mechanism driven by multiple groups of connecting rods according to claim 4, characterized in that: The second connecting surface includes at least one fourth face, at least one fifth face and at least one sixth face; the fourth face is connected to the second mounting bar, and the fifth face is connected to the sixth face; wherein the fifth face and the sixth face are arranged between adjacent second mounting bars, and the second bending line is arranged between the fifth face and the sixth face.

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