Rotating frame for sofa and furniture thereof

Abstract

The utility model discloses a rotating frame for a sofa and furniture of the sofa. The rotating frame for the furniture comprises a fixed plate, a rotating plate, a first guide head, a second guide head, a first direction guide rail and a second direction guide rail, wherein the rotating plate and the fixed plate are arranged in a laminated manner; the first guide head, the second guide head, the first direction guide rail and the second direction guide rail are arranged between the fixed plate and the rotating plate; the first direction guide rail is arranged in a curve extending mode in the X-axis direction and arches towards the direction close to the second direction guide rail, and the second direction guide rail is arranged in a curve extending mode in the Y-axis direction and arches towards the direction close to the first direction guide rail. And when the first guide head and the second guide head move at the same time, the rotating plate is at least rotationally switched between a first position and a second position relative to the fixed plate. According to the rotating frame for the furniture, the corners, adjacent to the first guide head and the second guide head, of the rotating plate cannot protrude out of the fixed plate in the rotating switching process of the rotating plate from the first position to the second position, and the rotating plate is effectively prevented from abrading a sofa backrest.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a sofa and a rotating frame for the sofa. Background Art

[0002] As is known to all, a sofa is a kind of furniture, which includes a sofa base, a sofa cushion disposed above the sofa base, and a sofa backrest located behind the sofa cushion and connected to the sofa base. The sofa cushion includes a plurality of seat cushion units that are independent of each other and arranged in a row, so that each seat cushion unit can be independently rotated relative to the sofa base in the horizontal direction to achieve the need of adjusting the position of each seat cushion unit; therefore, a rotating frame needs to be configured between each seat cushion unit and the sofa base.

[0003] At present, in the existing rotating frame, it is mainly composed of a lower fixing plate fixed on the sofa base and an upper fixing plate that can rotate around the vertical center line of the lower fixing plate and is used to install the seat cushion unit. Because the upper fixing plate rotates around the vertical center line of the lower fixing plate, in order to prevent the rotating seat cushion unit from grinding against the sofa back and adjacent seat cushion units, it is necessary to leave too large a gap between adjacent seat cushion units and between the seat cushion unit and the sofa back to avoid blocking the corner of the rotating seat cushion unit, and too large a gap affects the appearance of the sofa.

[0004] Therefore, there is an urgent need for a sofa and a furniture rotating frame thereof to overcome one or more of the above-mentioned defects. Utility Model Content

[0005] One object of the utility model is to provide a furniture rotating frame, so that when the rotating plate is rotated and switched from a first position to a second position, the corners of the rotating plate adjacent to the first guide head and the corners of the rotating plate adjacent to the second guide head will not protrude from the fixed plate, so that the gaps between the sofa backrest and the sofa seat cushion and between adjacent sofa seat cushions can be made more compact, thereby not affecting the appearance of the sofa.

[0006] Another object of the utility model is to provide a sofa, so that when the rotating plate is rotated and switched from the first position to the second position, the corners of the rotating plate adjacent to the first guide head and the corners of the rotating plate adjacent to the second guide head will not protrude from the fixed plate, so that the gap between the sofa backrest and the sofa seat cushion and between adjacent sofa seat cushions can be made more compact, thereby not affecting the appearance of the sofa.

[0007] In order to achieve the above-mentioned purpose, the furniture rotating frame of the utility model comprises a fixed plate, a rotating plate stacked with the fixed plate, and a first guide head, a second guide head, a first direction guide rail and a second direction guide rail arranged between the fixed plate and the rotating plate. The first direction guide rail is arranged along the X-axis curve and arched in the direction close to the second direction guide rail, and the second direction guide rail is arranged along the Y-axis curve and arched in the direction close to the first direction guide rail. The first guide head can be movably arranged along the first direction guide rail, and the second guide head can be movably arranged along the second direction guide rail. When the first guide head and the second guide head are simultaneously movable, the rotating plate can be rotated and switched between at least a first position and a second position relative to the fixed plate.

[0008] Compared with the prior art, with the help of the design that "the first direction guide rail is arranged along the X-axis curve and arched toward the direction close to the second direction guide rail, and the second direction guide rail is arranged along the Y-axis curve and arched toward the direction close to the first direction guide rail", during the process of the rotating plate switching from the first position to the second position, the first guide head moving along the first direction guide rail is also displaced inwardly along the Y-axis direction, and the second guide head moving along the second direction guide rail is also displaced inwardly along the Y-axis direction, so that the corners adjacent to the rotating plate and the first guide head and the corners adjacent to the rotating plate and the second guide head will not protrude from the fixed plate, thereby making the gap between the sofa backrest and the sofa seat cushion more compact, thereby not affecting the appearance of the sofa.

[0009] Preferably, the first direction guide rail is staggered with the second direction guide rail in the X-axis direction, and both the first direction guide rail and the second direction guide rail are arc guides; the center angle of the first direction guide rail differs from the center angle of the second direction guide rail by 1 degree; the center angle of the arc guide rail is less than or equal to 30 degrees; and when the rotating plate is in the first position, it is flush with the fixed plate along the X-axis direction and / or the Y-axis direction.

[0010] Preferably, the first direction guide rail is a first direction groove opened on one of the fixed plate and the rotating plate, and the first guide head is a shaft, a bearing or a wheel protruding on the other of the fixed plate and the rotating plate and placed in the first direction groove along the Z-axis direction; the second direction guide rail is a second direction groove opened on one of the fixed plate and the rotating plate, and the second guide head is a shaft, a bearing or a wheel protruding on the other of the fixed plate and the rotating plate and placed in the second direction groove along the Z-axis direction.

[0011] Preferably, the first direction guide rail is a first direction ridge protruding from one of the fixed plate and the rotating plate, the first guide head is a first slider slidably provided on the first direction ridge, and the first slider is also rotatably assembled with the other of the fixed plate and the rotating plate; the second direction guide rail is a second direction ridge protruding from one of the fixed plate and the rotating plate, the second guide head is a second slider slidably provided on the second direction ridge, and the second slider is also rotatably assembled with the other of the fixed plate and the rotating plate.

[0012] Preferably, the first direction guide rail has a first end adjacent to the second direction guide rail and a second end away from the second direction guide rail, and the second direction guide rail has a third end adjacent to the first direction guide rail and a fourth end away from the first direction guide rail; when the rotating plate is switched to the first position, the first guide head is located on the first end, and the second guide head is located on the fourth end; when the rotating plate is switched to the second position, the first guide head is located between the arch apex and the second end of the first direction guide rail, and the second guide head is located between the arch apex and the fourth end of the second direction guide rail.

[0013] Preferably, when the rotating plate switches to the second position, the corner of the rotating plate adjacent to the first guide head is flush with the first boundary of the fixed plate, the corner of the rotating plate adjacent to the second guide head is flush with the second boundary of the fixed plate, the first boundary extends along the X-axis direction and is adjacent to the first direction guide rail, and the second boundary extends along the Y-axis direction and is adjacent to the second direction guide rail.

[0014] Preferably, the furniture rotating frame of the present invention further includes a positioning guide rail and a positioning head arranged between the fixed plate and the rotating plate, the corner between the first direction guide rail and the second direction guide rail is arranged diagonally with the positioning guide rail, and the positioning head moves along the positioning guide rail during the switching of the rotating plate between the first position and the second position.

[0015] Preferably, the positioning guide rail is a parabolic guide rail, and the parabolic guide rail takes the diagonal of the fixed plate or the rotating plate where the positioning guide rail is located as the axis of symmetry; the fixed plate or the rotating plate where the positioning guide rail is located is provided with a locking member, and the locking member locks with the positioning head when the rotating plate is switched to the first position.

[0016] Preferably, the parabolic guide rail is a groove; the locking piece is a spring sheet, the spring sheet has two ends assembled and connected to the fixed plate or the rotating plate and a protruding structure located between the two ends and protruding in the groove, the protruding structure defines a locking area at the end of the parabolic guide rail, and the positioning head passes over the protruding structure and enters the locking area during the process of switching the rotating plate from the second position to the first position; the positioning head is a shaft, a bearing or a wheel placed in the groove along the Z-axis direction.

[0017] To achieve the above purpose, the sofa of the utility model comprises a sofa base, a sofa cushion located above the sofa base, a sofa backrest located behind the sofa cushion and connected to the sofa base, and the aforementioned furniture rotating frame. The fixing plate is assembled on the sofa base, and the sofa cushion is assembled on the rotating plate.

[0018] Compared with the prior art, with the help of the design that "the first direction guide rail is arranged along the X-axis curve and arched toward the direction close to the second direction guide rail, and the second direction guide rail is arranged along the Y-axis curve and arched toward the direction close to the first direction guide rail", during the switching of the rotating plate from the first position to the second position, the first guide head moving along the first direction guide rail is also displaced inwardly along the Y-axis direction, and the second guide head moving along the second direction guide rail is also displaced inwardly along the Y-axis direction, so that the corners adjacent to the rotating plate and the first guide head and the corners adjacent to the rotating plate and the second guide head will not protrude from the fixed plate, thereby making the gap between the sofa backrest and the sofa seat cushion more compact, thereby not affecting the appearance of the sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the sofa of the present invention.

[0020] Figure 2 yes Figure 1 The sofa is shown in a state diagram when the right sofa cushion follows its corresponding rotating plate to rotate to the second position.

[0021] Figure 3 It is a three-dimensional diagram of the furniture rotating frame of the utility model when the rotating plate is in the first position.

[0022] Figure 4 yes Figure 3 The furniture rotating frame shown is a plan view when viewed in the opposite direction of the Z-axis.

[0023] Figure 5 yes Figure 3 The furniture rotating frame shown is a plan view when viewed in the positive direction along the Z-axis.

[0024] Figure 6 is along Figure 5 Internal view cut along line AA.

[0025] Figure 7 yes Figure 3 An exploded perspective view of a rotating frame for furniture is shown.

[0026] Figure 8 yes Figure 7 A three-dimensional exploded view from another angle.

[0027] Fig. 9 yes Figure 4 State diagram when the rotating plate switches to the second position.

[0028] Fig.10 It is a stereoscopic diagram of a rotating plate in a rotating frame for furniture of the utility model and a first guide head, a second guide head and a positioning head thereon.

[0029] Fig.11 It is a stereoscopic diagram of a fixed plate in a furniture rotating frame of the utility model and a first direction guide rail, a second direction guide rail, a positioning guide rail and a wear-resistant rubber pad thereon.

[0030] Fig.12 yes Fig.11 A plan view when viewed in the opposite direction along the Z-axis. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0032] See also Figure 1 and Figure 2 The sofa 100 of the utility model comprises a furniture rotating frame 10, a sofa base 20, a sofa cushion 30 located above the sofa base 20, and a sofa backrest 40 located behind the sofa cushion 30 and connected to the sofa base 20. The fixed plate 11 in the furniture rotating frame 10 is assembled on the sofa base 20, and the sofa cushion 30 is assembled at the rotating plate 12 in the furniture rotating frame 10 to meet the need of the sofa cushion 30 following the rotating plate 12 to rotate and switch between the first position and the second position relative to the fixed plate 11. Specifically, Figure 1 and Figure 2 As an example, there are two sofa cushions 30 and two sofa backrests 40, and each of them is arranged in a row along the Y-axis direction. Correspondingly, each sofa cushion 30 needs to be equipped with a furniture rotating frame 10 to ensure that each sofa cushion 30 can rotate relative to the sofa base 20 with the help of its corresponding furniture rotating frame 10; obviously, according to actual needs, the number of sofa cushions 30 and sofa backrests 40 can also be other, so it is not limited to the above. Figure 1 and Figure 2 Limits shown.

[0033] Recombination Figures 3 to 5 The furniture rotating frame 10 comprises a first guide head 13, a second guide head 14, a first direction guide rail 15, a second direction guide rail 16, and the aforementioned fixed plate 11 and rotating plate 12. The rotating plate 12 and the fixed plate 11 are stacked and arranged. Figure 3 As an example, the rotating plate 12 is stacked with the fixed plate 11 along the Z-axis direction to meet the need of the rotating plate 12 and the fixed plate 11 being arranged face to face. The first direction guide rail 15, the second direction guide rail 16, the first guide head 13 and the second guide head 14 are arranged between the fixed plate 11 and the rotating plate 12. The first direction guide rail 15 is arranged along the X-axis direction and arched in the direction close to the second direction guide rail 16. The second direction guide rail 16 is arranged along the Y-axis direction and arched in the direction close to the first direction guide rail 15. The first guide head 13 can be movably arranged along the first direction guide rail 15, and the second guide head 14 can be movably arranged along the second direction guide rail 16. Therefore, when the first guide head 13 and the second guide head 14 move at the same time, that is, when the first guide head 13 moves along the first direction guide rail 15, the second guide head 14 also moves along the second direction guide rail 16, so that the rotating plate 12 is at least as far as the fixed plate 11 as shown in the figure. Figure 3 , Figure 4 or Figure 5 The first position shown and Fig. 9 and when the rotating plate 12 is switched from the first position to the second position, Figure 1 Middle right sofa cushion 30 switch to Figure 2 The state shown in the right sofa cushion 30 in the middle. More specifically, as follows:

[0034] like Fig. 9 and Fig.12 As shown, as an example, the first direction guide rail 15 is staggered with the second direction guide rail 16 in the X-axis direction. This design effectively extends the extension length of the first direction guide rail 15 and the second direction guide rail 16 while avoiding the intersection between the first direction guide rail 15 and the second direction guide rail 16. In addition, the first direction guide rail 15 has a first end 151 adjacent to the second direction guide rail 16 and a second end 152 away from the second direction guide rail 16, and the second direction guide rail 16 has a third end 161 adjacent to the first direction guide rail 15 and a fourth end 162 away from the first direction guide rail 15. Therefore, when the rotating plate 12 is switched to the position shown in FIG. Figure 3 , Figure 4 or Figure 5 In the first position shown, the first guide head 13 is located on the first end 151, and the second guide head 14 is located on the fourth end 162. Figure 4 When the rotating plate 12 is switched to Fig. 9In the second position shown, the first guide head 13 is located between the arched apex 153 and the second end 152 of the first direction guide rail 15, and the second guide head 14 is located between the arched apex 163 and the fourth end 162 of the second direction guide rail 16. Fig. 9 As shown; This design effectively ensures that the corner 121 of the rotating plate 12 adjacent to the first guide head 13 does not protrude from the first boundary 111 of the fixed plate 11, and the corner 122 of the rotating plate 12 adjacent to the second guide head 14 does not protrude from the second boundary 112 of the fixed plate 11, the first boundary 111 extends along the X-axis direction and is adjacent to the first direction guide rail 15, and the second boundary 112 extends along the Y-axis direction and is adjacent to the second direction guide rail 16, the state is shown Fig. 9 Specifically, Figures 3 to 5 As an example, the rotating plate 12 is flush with the fixed plate 12 along the X-axis direction and / or the Y-axis direction when in the first position. Fig. 9 As an example, when the rotating plate 12 is switched to the second position, a corner 121 of the rotating plate 12 adjacent to the first guide head 13 is flush with the first boundary 111 of the fixed plate 11, that is, the corner 121 is controlled not to protrude from the first boundary 111 along the Y-axis direction; a corner 122 of the rotating plate 12 adjacent to the second guide head 14 is flush with the second boundary 112 of the fixed plate 11, that is, the corner 122 is controlled not to protrude from the second boundary 112 along the X-axis direction.

[0035] like Fig.12 As shown, as an example, the first direction guide rail 15 and the second direction guide rail 16 are both arc guide rails; during the rotation of the rotating plate 12, the arc guide rail can further ensure that the corner 121 of the rotating plate 12 will not protrude from the first boundary 111 of the fixed plate 11, and the corner 122 of the rotating plate 12 will not protrude from the second boundary 112 of the fixed plate 11. In addition, the center angle α of the first direction guide rail 15 and the center angle β of the second direction guide rail 16 differ by 1 degree, so that the arc shapes of the two are as consistent as possible. In addition, the center angle α of the first direction guide rail 15 and the center angle β of the second direction guide rail 16 are each less than or equal to 30 degrees, for example, the center angle α is 19 degrees, and the center angle β is 18 degrees, so that the first direction guide rail 15 and the second direction guide rail 16 are bent and stretched more gently.

[0036] Combination Figure 6 and Figure 8As shown, as an example, the first direction guide rail 15 is a first direction groove opened on the fixed plate 11, and the first guide head 13 is a wheel convexly provided on the rotating plate 12 and placed in the first direction groove along the Z-axis direction, so that the first guide head 13 rolls along the first direction guide rail 15, so the first guide head 13 is subject to less resistance and moves more smoothly on the first direction guide rail 15; obviously, according to actual needs, the first direction guide rail 15 can also be a first direction groove opened on the rotating plate 12, and correspondingly, the first guide head 13 is a wheel convexly provided on the fixed plate 11 and placed in the first direction groove along the Z-axis direction; in addition, the first guide head 13 can also be a shaft or a bearing in addition to a wheel, so it is not necessary to use Figure 6 and Figure 8 Specifically, Figure 6 and Fig.10 As an example, the first guide head 13 has a mating segment 131 located in the first direction groove and two limiting structures 132 for limiting the mating segment 131 from sliding out of the first direction groove along the Z-axis direction. The two limiting structures 132 radially protrude from the mating segment 131 and are located outside the first direction groove. Such a design can effectively prevent the first guide head 13 from falling off from the first direction groove (i.e., the first direction guide rail 15) along the Z-axis direction.

[0037] Recombination Figure 6 and Figure 8 As shown, as an example, the second direction guide rail 16 is a second direction groove opened on the fixed plate 11, and the second guide head 14 is a wheel convexly provided on the rotating plate 12 and placed in the second direction groove along the Z-axis direction, so that the second guide head 14 rolls along the second direction guide rail 16, so the second guide head 14 is subject to less resistance and moves more smoothly on the second direction guide rail 16; obviously, according to actual needs, the second direction guide rail 16 can also be a second direction groove opened on the rotating plate 12, and correspondingly, the second guide head 14 is a wheel convexly provided on the fixed plate 11 and placed in the second direction groove along the Z-axis direction; in addition, the second guide head 14 can also be a shaft or a bearing in addition to a wheel, so it is not necessary to use Figure 6 and Figure 8 Specifically, Figure 6 and Fig.10 As an example, the second guide head 14 has a mating segment 141 located in the second direction groove and two limiting structures 142 for limiting the mating segment 141 from sliding out of the second direction groove along the Z-axis direction. The two limiting structures 142 radially protrude from the mating segment 141 and are located outside the second direction groove. Such a design can effectively prevent the second guide head 14 from falling off the second direction groove (i.e., the second direction guide rail 16) along the Z-axis direction.

[0038] like Fig. 9As shown, as an example, the furniture rotating frame 10 also includes a positioning rail 17 and a positioning head 18 provided between the fixed plate 11 and the rotating plate 12. The corner 156 between the first direction rail 15 and the second direction rail 16 is arranged diagonally with the positioning rail 17, and the positioning head 18 moves along the positioning rail 17 during the switching of the rotating plate 12 between the first position and the second position; the positioning rail 17 and the positioning head 18 are used to increase the movable support points between the rotating plate 12 and the fixed plate 11, and the cooperation between the first guide head 13 and the first direction rail 15 and the cooperation between the second guide head 14 and the second direction rail 16 are combined to realize the function of three-point movable support, so that the rotation of the rotating plate 12 relative to the fixed plate 11 is more stable and smoother. Specifically, in Fig.12 As an example, the positioning rail 17 is a parabolic rail, and the parabolic rail is located at the diagonal of the fixed plate 11 where the positioning rail 17 is located (see Fig.12 The center line shown in FIG. 1 is the axis of symmetry to further improve the smoothness of the rotation of the rotating plate 12 relative to the fixed plate 11. In addition, the fixed plate 11 where the positioning guide rail 17 is located is provided with a locking member 19a, which locks with the positioning head 18 when the rotating plate 12 switches to the first position. Figure 5 Therefore, the locking member 19a effectively prevents the rotating plate 12 in the first position from accidentally rotating relative to the fixed plate 11, thereby ensuring the stability of the sofa seat cushion 30 when no adjustment is required. For a more detailed description of the parabolic guide rail, the locking member 19a and the positioning head 18, see the following description.

[0039] like Fig.12 As shown in the figure, as an example, the parabolic guide rail is a groove. Obviously, according to actual needs, the parabolic guide rail can also be a convex ridge structure. When the parabolic guide rail is a convex ridge structure, the positioning head 18 is a slider structure that is slidably mounted on the convex ridge structure and is rotatably assembled and connected. Figure 5 As an example, the locking member 19a is a spring sheet, which has two ends 191 assembled and connected with the fixed plate 11 and a protruding structure 192 located between the two ends 191 and protruding in the groove (i.e., the positioning guide rail 17). The protruding structure 192 defines a locking area 171 at the end of the parabolic guide rail. The positioning head 18 passes over the protruding structure 192 and enters the locking area 171 during the switching process of the rotating plate 12 from the second position to the first position. Figure 5 As shown, the purpose of quickly positioning the rotating plate 12 by the spring sheet when the rotating plate 12 is in the first position is achieved. Fig.10 As an example, the positioning head 18 is a shaft body placed in the groove along the Z-axis direction. Obviously, according to actual needs, the positioning head 18 can also be a bearing or a wheel. Fig.10 It should be noted that although Figure 5 , Figure 7 , Figure 8 and Fig. 9 It is shown that the positioning rail 17 is located on the fixed plate 11 and the positioning head 18 is located on the rotating plate 12. Obviously, according to actual needs, the positioning rail 17 can also be located on the rotating plate 12 and the positioning head 18 can be located on the fixed plate 11.

[0040] like Figure 3 , Figure 6 , Figure 7 , Fig. 9 , Fig.11 and Fig.12 As shown, as an example, the furniture rotating frame 10 further includes a wear-resistant rubber pad 19b disposed between the fixed plate 11 and the rotating plate 12 and arranged in a ring shape, so as to increase the wear resistance between the rotating plate 12 and the fixed plate 11 with the help of the wear-resistant rubber pad 19b. Specifically, as an example, the wear-resistant rubber pad 19b is mounted on the end surface of the fixed plate 11 facing the rotating plate 12, and is arranged along the edge of the end surface, so that the first direction guide rail 15, the second direction guide rail 16 and the positioning guide rail 17 are all corresponding to the space 194 surrounded by the wear-resistant rubber pad 19b; obviously, according to actual needs, the wear-resistant rubber pad 19b can also be mounted on the end surface of the rotating plate 12 facing the fixed plate 11.

[0041] Compared with the prior art, by means of the design that "the first direction guide rail 15 is arranged to extend in a curve along the X-axis direction and arches in a direction close to the second direction guide rail 16, and the second direction guide rail 16 is arranged to extend in a curve along the Y-axis direction and arches in a direction close to the first direction guide rail 15", during the switching of the rotating plate 12 from the first position to the second position, the first guide head 13 moving along the first direction guide rail 15 is also displaced inwardly along the Y-axis direction, and the second guide head 14 moving along the second direction guide rail 16 is also displaced inwardly along the Y-axis direction, so that the corner 121 adjacent to the rotating plate 12 and the first guide head 13 and the corner 122 adjacent to the rotating plate 12 and the second guide head 14 will not protrude from the fixed plate 11, thereby making the gap between the sofa backrest 40 and the sofa seat cushion 30 more compact, thereby not affecting the appearance of the sofa 100 of the present invention. It should be noted that when a plurality of sofa cushions 30 are arranged in a row along the Y-axis direction, at this time, in two adjacent sofa cushions 30, since the corners 121 and 122 of the rotating plate 12 will not protrude from the fixed plate 11, the gap between the sofa cushions 30 is made more compact.

[0042] It is worth noting that, although the first direction guide rail 15 shown in the attached drawings is a first direction groove and the second direction guide rail 16 is a second direction groove; obviously, according to actual needs, the first direction guide rail can also be a first direction ridge, and correspondingly, the first guide head is a first slider slidably mounted on the first direction ridge, and the first slider is rotatably assembled and connected; similarly, the second direction guide rail can also be a second direction ridge, and correspondingly, the second guide head is a second slider slidably mounted on the second direction ridge, and the second slider is also rotatably assembled and connected. In addition, although the above description uses the furniture rotating frame 10 as the structure of the sofa 100, it is obvious that the furniture rotating frame 10 can also be applied to other furniture besides the sofa 100, so it is not limited to the occasion where the furniture rotating frame 10 can only be applied to the sofa 100.

[0043] The above disclosure is only a preferred example of the present invention, and its role is to facilitate the technical personnel in this field to understand and implement it. Of course, it cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A rotating frame for furniture, comprising a fixed plate and a rotating plate stacked with the fixed plate, characterized in that: The furniture rotating frame further comprises a first guide head, a second guide head, a first direction guide rail and a second direction guide rail arranged between the fixed plate and the rotating plate, the first direction guide rail is arranged along an X-axis curve and arched in a direction close to the second direction guide rail, the second direction guide rail is arranged along a Y-axis curve and arched in a direction close to the first direction guide rail, the first guide head can be movably arranged along the first direction guide rail, the second guide head can be movably arranged along the second direction guide rail, and the rotating plate can be rotated and switched between at least a first position and a second position relative to the fixed plate when the first guide head and the second guide head are simultaneously movable; In which, the furniture rotating frame also includes a positioning guide rail and a positioning head arranged between the fixed plate and the rotating plate, the corner between the first direction guide rail and the second direction guide rail is arranged diagonally with the positioning guide rail, and the positioning head moves along the positioning guide rail during the switching of the rotating plate between the first position and the second position; the positioning guide rail is a parabolic guide rail, and the parabolic guide rail takes the diagonal line of the fixed plate or the rotating plate where the positioning guide rail is located as the axis of symmetry; the fixed plate or the rotating plate where the positioning guide rail is located is provided with a locking member, and the locking member locks with the positioning head when the rotating plate is switched to the first position.

2. The furniture rotating frame according to claim 1, characterized in that: The first direction guide rail is staggered with the second direction guide rail in the X-axis direction, and both the first direction guide rail and the second direction guide rail are arc guide rails; the center angle of the first direction guide rail differs from the center angle of the second direction guide rail by 1 degree; the center angle of the arc guide rail is less than or equal to 30 degrees; when the rotating plate is in the first position, it is flush with the fixed plate along the X-axis direction and / or the Y-axis direction.

3. The furniture rotating frame according to claim 1, characterized in that: The first direction guide rail is a first direction groove opened on one of the fixed plate and the rotating plate, and the first guide head is a shaft, a bearing or a wheel protruding from the other of the fixed plate and the rotating plate and placed in the first direction groove along the Z-axis direction; the second direction guide rail is a second direction groove opened on one of the fixed plate and the rotating plate, and the second guide head is a shaft, a bearing or a wheel protruding from the other of the fixed plate and the rotating plate and placed in the second direction groove along the Z-axis direction.

4. The furniture rotating frame according to claim 1, characterized in that: The first direction guide rail is a first direction ridge protruding from one of the fixed plate and the rotating plate, the first guide head is a first slider slidably provided on the first direction ridge, and the first slider is also rotatably assembled with the other of the fixed plate and the rotating plate; the second direction guide rail is a second direction ridge protruding from one of the fixed plate and the rotating plate, the second guide head is a second slider slidably provided on the second direction ridge, and the second slider is also rotatably assembled with the other of the fixed plate and the rotating plate.

5. The furniture rotating frame according to claim 2, characterized in that: The first direction guide rail has a first end adjacent to the second direction guide rail and a second end away from the second direction guide rail, and the second direction guide rail has a third end adjacent to the first direction guide rail and a fourth end away from the first direction guide rail; when the rotating plate is switched to the first position, the first guide head is located on the first end, and the second guide head is located on the fourth end; when the rotating plate is switched to the second position, the first guide head is located between the arch apex and the second end of the first direction guide rail, and the second guide head is located between the arch apex and the fourth end of the second direction guide rail.

6. The furniture rotating frame according to claim 5, characterized in that: When the rotating plate switches to the second position, the corner of the rotating plate adjacent to the first guide head is flush with the first boundary of the fixed plate, the corner of the rotating plate adjacent to the second guide head is flush with the second boundary of the fixed plate, the first boundary extends along the X-axis direction and is adjacent to the first direction guide rail, and the second boundary extends along the Y-axis direction and is adjacent to the second direction guide rail.

7. The furniture rotating frame according to claim 1, characterized in that: The parabolic guide rail is a groove; the locking piece is a spring sheet, which has two ends assembled and connected to the fixed plate or the rotating plate and a protruding structure located between the two ends and protruding in the groove, the protruding structure enables the end of the parabolic guide rail to define a locking area, and the positioning head passes over the protruding structure and enters the locking area during the process of the rotating plate switching from the second position to the first position; the positioning head is a shaft, a bearing or a wheel placed in the groove along the Z-axis direction.

8. A sofa, comprising a sofa base, a sofa cushion located above the sofa base, and a sofa backrest located behind the sofa cushion and connected to the sofa base, characterized in that: The sofa further comprises a furniture rotating frame according to any one of claims 1 to 7, the fixing plate is mounted on the sofa base, and the sofa seat cushion is mounted on the rotating plate.

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