Rotating mechanism and sofa

Abstract

The utility model discloses a rotating mechanism and a sofa, relates to furniture field, including conversion mechanism, conversion mechanism includes base, link subassembly, slide rail and moving part, moving part sliding connection with slide rail, moving part is equipped with turntable, link subassembly hinge on base and is connected with turntable, base and moving part is equipped with return spring between base and moving part. The sofa comprises a backrest, a bottom frame and a cushion, a conversion mechanism is embedded in the bottom frame, the peripheral side wall of the cushion comprises long edges and short edges which are different in length, a rotating disc is connected to the bottom of the cushion, a sliding rail is obliquely arranged relative to the long edges, and when a moving part slides on the sliding rail, a connecting rod assembly can enable the rotating disc to rotate; the cushion can reach the first state and the second state, when the cushion is in the first state, the short edge abuts against the backrest, when the cushion is in the second state, the long edge abuts against the backrest, automatic positioning of the cushion after adjustment can be achieved through a spring in the conversion mechanism, manual locking is not needed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, and particularly relates to a rotating mechanism and a sofa. Background Art

[0002] With the increasing improvement of people's living standards, there is a growing pursuit of the versatility of furniture to meet various usage requirements. Currently, there are various rotatable sofas on the market that can provide different usage functions by changing the direction of the seat cushion, and are provided with a rotating mechanism capable of rotating the seat cushion. However, the current rotating mechanism has a locking function, and it is necessary to manually unlock and then rotate and adjust during the adjustment process. The operation is relatively complicated, especially for first-time users, which has a certain operation difficulty, and thus leads to a poor usage experience. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a rotating mechanism and a sofa, which are convenient to operate and have a good usage experience.

[0004] A rotating mechanism according to an embodiment of the first aspect of the utility model includes:

[0005] A transformation mechanism, which includes a base, a connecting rod assembly, a slide rail and a moving component. The moving component is slidably connected to the slide rail. The moving component is provided with a turntable. The connecting rod assembly is hinged to the base and connected to the turntable. A return spring is provided between the base and the moving component.

[0006] A rotating mechanism according to an embodiment of the first aspect of the utility model has at least the following beneficial effects: In this embodiment, a transformation mechanism is provided. The transformation mechanism includes a base, a connecting rod assembly, a slide rail and a moving component. The moving component is slidably connected to the slide rail. The moving component is provided with a turntable. The connecting rod assembly is hinged to the base and connected to the turntable. A return spring is provided between the base and the moving component. The return spring can automatically reset after the adjustment is completed, and can maintain the position without using a locking mechanism, which can simplify the structure and improve the operation convenience.

[0007] According to an embodiment of the first aspect of the utility model, the connecting rod assembly includes a first connecting rod and a second connecting rod. Two ends of the first connecting rod are respectively hinged to the base and the second connecting rod, and the other end of the second connecting rod is fixedly connected to the turntable.

[0008] According to an embodiment of the first aspect of the utility model, the moving component is provided with a moving frame, the turntable is rotatably connected to the moving frame, and the moving frame moves on the slide rail.

[0009] According to an embodiment of the first aspect of the utility model, one end of the base is provided with a connecting pin, one end of the moving frame far away from the connecting pin is provided with a connecting piece, and two ends of the return spring are respectively connected to the connecting pin and the connecting piece.

[0010] According to an embodiment of the first aspect of the present utility model, one end of the connecting pin provided on the base has a limiting member, and when the moving member is reset, the moving frame abuts against the limiting member.

[0011] According to an embodiment of the first aspect of the present utility model, a detachable mounting connecting frame is provided at the end of the base, and the connecting pin is fixed to the bottom side of the connecting frame away from the turntable.

[0012] According to an embodiment of the first aspect of the present utility model, the base further includes a side frame and a tail frame, the slide rail is mounted on the side frame, and the connecting frame and the tail frame are respectively arranged at both ends of the side frame.

[0013] According to an embodiment of the first aspect of the present utility model, a slider is provided between the moving frame and the slide rail, and the slider slides on the slide rail.

[0014] According to an embodiment of the first aspect of the present utility model, a first bearing is provided on the moving frame, and the turntable rotates through the first bearing.

[0015] According to an embodiment of the second aspect of the present utility model, a sofa is provided, including the above-mentioned rotation mechanism, and further including:

[0016] A backrest;

[0017] A bottom frame, in which a transformation mechanism is embedded;

[0018] A seat cushion, located on the bottom frame, the outer peripheral side wall of the seat cushion includes a long side and a short side with different lengths, the turntable is connected to the bottom of the seat cushion, and the slide rail is arranged obliquely with respect to the long side;

[0019] When the moving member slides on the slide rail, the link assembly can make the turntable rotate, and the seat cushion can reach a first state and a second state. When the seat cushion is in the first state, the short side abuts against the backrest; when the seat cushion is in the second state, the long side abuts against the backrest.

[0020] The sofa according to the embodiment of the second aspect of the present utility model has at least the following beneficial effects: In this embodiment, it includes a backrest, a bottom frame and a seat cushion. A transformation mechanism is embedded in the bottom frame. The seat cushion is located on the bottom frame. The outer peripheral side wall of the seat cushion includes a long side and a short side with different lengths. The turntable is connected to the bottom of the seat cushion. The slide rail is arranged obliquely with respect to the long side. When the moving member slides on the slide rail, the link assembly can make the turntable rotate, and the seat cushion can reach a first state and a second state. When the seat cushion is in the first state, the short side abuts against the backrest; when the seat cushion is in the second state, the long side abuts against the backrest. And through the spring in the transformation mechanism, automatic positioning of the seat cushion after adjustment can be realized, without manual locking, making the operation convenient.

[0021] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments, where:

[0023] Figure 1 Is an axonometric view of a rotating mechanism when the seat cushion is in the first state in the embodiment of the second aspect of the present utility model;

[0024] Figure 2 Is an axonometric view of a rotating mechanism when the seat cushion is in the second state in the embodiment of the second aspect of the present utility model;

[0025] Figure 3 Is the bottom view of the transformation mechanism in the embodiment of the first aspect of the present utility model;

[0026] Figure 4 Is the upper view of the transformation mechanism in the embodiment of the first aspect of the present utility model;

[0027] Figure 5 Is the cross-sectional view of the transformation mechanism in the embodiment of the first aspect of the present utility model;

[0028] Figure 6 Is Figure 5 The enlarged view of A in.

[0029] Reference Signs:

[0030] Bottom frame 100; seat cushion 101; backrest 102; accommodation cavity 103; long side 104; short side 105; fixed cushion 106;

[0031] Transformation mechanism 110; base 111; connecting rod assembly 112; slide rail 113; return spring 114; connecting pin 115; connecting frame 116; first connecting rod 118; second connecting rod 119;

[0032] Moving part 120; turntable 121; moving frame 122; connecting piece 123; first bearing 124; limiting part 125; positioning part 126; side frame 127; tail frame 128; slider 129; bolt 130; nut 131; second bearing 132; buffer sleeve 133. Detailed Description of the Preferred Embodiments

[0033] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where 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 are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0034] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as limiting the present utility model.

[0035] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0037] Refer to Figure 1 , in the sofa according to the embodiment of the second aspect of the present utility model, which includes the rotating mechanism in the embodiment of the first aspect of the present utility model. The sofa includes a bottom frame 100 and a transformation mechanism 110. The bottom frame 100 is provided with a backrest 102 and a rotatable seat cushion 101. The outer peripheral side wall of the seat cushion 101 includes a long side 104 and a short side 105 with different lengths. A receiving cavity 103 for preventing the transformation mechanism 110 is provided in the bottom frame 100. The transformation mechanism 110 is embedded in the receiving cavity 103 and connected to the bottom of the seat cushion 101.

[0038] The transformation mechanism 110 includes a base 111, a connecting rod assembly 112, a slide rail 113, and a moving member 120. The base 111 is fixed within the accommodation cavity 103. The moving member 120 is slidably connected to the slide rail 113. The moving member 120 is provided with a turntable 121. The connecting rod assembly 112 is hinged to the base 111 and connected to the turntable 121. A return spring 114 is provided between the base 111 and the moving member 120. When the moving member 120 slides on the slide rail 113, the connecting rod assembly 112 can cause the turntable 121 to rotate. The seat cushion 101 can reach a first state and a second state. When the seat cushion 101 is in the first state, the short side 105 abuts against the backrest 102, thereby increasing the length of the support for a person's legs; Refer to Figure 2 , when the seat cushion 101 is in the second state, the long side 104 abuts against the backrest 102, thereby increasing the overall seating width of the sofa. By adjusting the different lengths of the seat cushion 101, different usage requirements can be met, improving the usage flexibility. Optionally, the slide rail 113 is inclined relative to the long side 104, so that the seat cushion 101 can move away from the backrest 102 when moving to avoid interference between the seat cushion 101 and the backrest 102 and thus facilitate rotation. The return spring 114 can automatically reset the seat cushion 101 after adjustment, enabling the seat cushion 101 to be maintained in the first state or the second state without using a locking mechanism, which can simplify the structure and improve the operation convenience.

[0039] Furthermore, a fixed pad 106 is fixedly installed on one side of the seat cushion 101 on the bottom frame 100. The long side 104 or the short side 105 of the seat cushion 101 can abut against the side wall of the fixed pad 106. After the rotational adjustment of the seat cushion 101 is completed, the side wall of the seat cushion 101 can abut against both the backrest 102 and the fixed pad 106 simultaneously. After the seat cushion 101 is adjusted, it can be positioned by the backrest 102 and the fixed pad 106 without an additional limiting mechanism, and the operation is simple and intuitive.

[0040] It can be understood that after the seat cushion 101 is adjusted and abuts against both the backrest 102 and the fixed pad 106 simultaneously, at this time, the return spring 114 maintains a certain tension, which helps the seat cushion 101 to keep in pressure contact with the backrest 102 and the fixed pad 106 to reduce the generation of gaps, which is helpful for improving the practicality and the aesthetic degree at the same time.

[0041] Refer to Figure 4, the moving member 120 is provided with a moving frame 122. The turntable 121 is rotatably connected to the moving frame 122. The moving frame 122 moves on the slide rail 113. At the same time, the link assembly 112 includes a first link 118 and a second link 119. Two ends of the first link 118 are respectively hinged to the base 111 and the second link 119. The other end of the second link 119 is fixedly connected to the turntable 121. It can be understood that when the seat cushion 101 is in the first state or the second state, the first link 118 and the second link 119 are in a mutually folded state; when the moving frame 122 moves, the turntable 121 drives the second link 119 to move. Furthermore, the second link 119 rotates around the first link 118, resulting in a combined movement of rotation and translation of the turntable 121 at the same time. Correspondingly, the seat cushion 101 generates a rotational movement while leaving the backrest 102, and the function of rotating and changing the orientation of the seat cushion 101 can be realized. Optionally, referring to Figure 5 , a fixedly installed first bearing 124 is provided on the moving frame 122. The first bearing 124 supports the bottom of the turntable 121. The turntable 121 rotates on the moving frame 122 through the first bearing 124. Optionally, the first bearing 124 is a plain bearing, and a ball bearing or a needle bearing can be selected. On the other hand, the first bearing 124 can be made of a friction-resistant material, such as polyoxymethylene resin (acetal), etc. When the turntable 121 rotates, friction is generated between its bottom and the first bearing 124, and low-resistance rotation can be realized. Optionally, a protruding positioning portion 126 is provided at the bottom of the turntable 121. The side wall of the positioning portion 126 abuts against the inner diameter side wall of the first bearing 124. During installation, the turntable 121 can be positioned by the positioning portion 126 abutting against the first bearing 124, which can improve the convenience of installation operation.

[0042] Furthermore, a bolt 130 is passed through the turntable 121. At the same time, the bolt 130 passes through the moving frame 122. A nut 131 is screwed on the end of the bolt 130 that protrudes from the moving frame 122, so that the turntable 121 is installed on the moving frame 122 by means of threaded connection. It can be understood that the bolt 130 is located at the rotation center of the turntable 121. When the nut 131 and the bolt 130 are screwed together, there is a certain pre-tightening force between them. Therefore, a second bearing 132 is provided between the nut 131 and the bottom wall of the moving frame 122, which can reduce the rotation resistance. The second bearing 132 is also a plain bearing, and a ball bearing or a needle bearing can be selected. On the other hand, the second bearing 132 can be made of a friction-resistant material, such as polyoxymethylene resin (acetal), etc. When the turntable 121 rotates, friction is generated between the first bearing 124 and the bottom wall of the moving frame 122. By selecting a low-resistance wear-resistant material, low-resistance rotation of the turntable 121 can be realized.

[0043] Referring to Figure 3, one end of the base 111 is provided with a detachably mounted connecting frame 116. A connecting pin 115 is provided on the bottom side of the connecting frame 116 away from the turntable 121. One end of the moving frame 122 away from the connecting pin 115 is provided with a connecting piece 123. The connecting piece 123 can be fixed by being integrally formed with the moving frame 122 or by means such as welding and bolt connection. The two ends of the return spring 114 are respectively connected to the connecting pin 115 and the connecting piece 123, and the return spring 114 can maintain a traction force on the moving frame 122. Optionally, one end of the base 111 where the connecting pin 115 is provided has a limiting member 125, which can realize the stroke limiting function of the moving frame 122 and prevent the moving frame 122 from moving beyond the preset stroke.

[0044] Furthermore, referring to Figure 6 , a buffer sleeve 133 is sleeved on the end of the limiting member 125. The buffer sleeve 133 covers the end face and the periphery of the end face of the limiting member 125 close to the moving frame 122. When the moving frame 122 contacts the limiting member 125, it can reduce impact and vibration, which is beneficial to improving the use experience. Optionally, the buffer sleeve 133 can be made of flexible materials such as silica gel, rubber or polyurethane.

[0045] Referring to Figure 3 and Figure 4 , the base 111 is assembled and installed by multiple components. The base 111 includes a side frame 127 and a tail frame 128. The slide rail 113 is installed on the side frame 127. The connecting frame 116 and the tail frame 128 are respectively arranged at both ends of the side frame 127. The side frame 127, the tail frame 128 and the connecting frame 116 are all fixed by bolt connection. And preferably, the side frame 127, the tail frame 128 and the connecting frame 116 are formed by bending a metal plate, so as to reduce the manufacturing cost of the base 111, and the detachable structure is convenient for subsequent structural improvement. Optionally, a slider 129 is provided between the moving frame 122 and the slide rail 113. The slider 129 slides on the slide rail 113. The slide rail 113 is fixedly installed on the side frame 127. A number of balls are provided between the slider 129 and the slide rail 113, which can realize the sliding connection between the two.

[0046] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A rotating mechanism, characterized in that, Comprising: A transformation mechanism, the transformation mechanism includes a base, a connecting rod assembly, a slide rail and a moving part, the moving part is slidably connected to the slide rail, the moving part is provided with a turntable, the connecting rod assembly is hinged to the base and connected to the turntable, and a return spring is provided between the base and the moving part.

2. The rotary mechanism according to claim 1, wherein The connecting rod assembly includes a first connecting rod and a second connecting rod, two ends of the first connecting rod are respectively hinged to the base and the second connecting rod, and the other end of the second connecting rod is fixedly connected to the turntable.

3. A rotation mechanism according to claim 1, characterized in that, The moving part is provided with a moving frame, the turntable is rotatably connected to the moving frame, and the moving frame moves on the slide rail.

4. A rotating mechanism according to claim 3, characterized in that, One end of the base is provided with a connecting pin, and one end of the moving frame away from the connecting pin is provided with a connecting piece, and two ends of the return spring are respectively connected to the connecting pin and the connecting piece.

5. A rotating mechanism according to claim 4, characterized in that One end of the base where the connecting pin is provided is provided with a limiting member, and when the moving part is reset, the moving frame abuts against the limiting member.

6. A rotating mechanism according to claim 4, characterized in that, The end of the base is provided with a detachably installed connecting frame, and the connecting pin is fixed to the bottom side of the connecting frame away from the turntable.

7. A rotation mechanism according to claim 6, characterized in that, The base further includes a side frame and a tail frame, the slide rail is installed on the side frame, and the connecting frame and the tail frame are respectively arranged at two ends of the side frame.

8. A rotating mechanism according to claim 3, wherein A slider is provided between the moving frame and the slide rail, and the slider slides on the slide rail.

9. A rotating mechanism according to claim 3, characterized in that, The moving frame is provided with a first bearing, and the turntable rotates through the first bearing.

10. A sofa, characterized in that, Comprising a rotation mechanism according to any one of claims 1 to 9, the rotation mechanism includes a transformation mechanism, the transformation mechanism includes a connecting rod assembly, a moving part and a slide rail, the moving part is slidably connected to the slide rail, the moving part is provided with a turntable, and wherein, comprising: A backrest; A bottom frame, the transformation mechanism is embedded in the bottom frame; A seat cushion, located on the bottom frame, an outer peripheral side wall of the seat cushion includes a long side and a short side with different lengths, the turntable is connected to the bottom of the seat cushion, and the slide rail is inclined relative to the long side; When the moving part slides on the slide rail, the connecting rod assembly can cause the turntable to rotate, the seat cushion can reach a first state and a second state, when the seat cushion is in the first state, the short side abuts against the backrest; when the seat cushion is in the second state, the long side abuts against the backrest.

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