Sofa cushion rotating mechanism and sofa

Abstract

The utility model discloses a sofa cushion rotating mechanism and a sofa in the field of sofas, the sofa cushion rotating mechanism comprises a mounting base, a sliding assembly, a guide column and a rotating assembly, sliding rails are arranged on two opposite side walls of the mounting base, and first arc-shaped guide grooves are formed in the sliding rails; the sliding assembly comprises a sliding block, a second arc-shaped guide groove is formed in the sliding block, and the second arc-shaped guide groove corresponds to the first arc-shaped guide groove; the guide column is inserted between the second arc-shaped guide groove and the first arc-shaped guide groove; one end of the rotating assembly is connected with the mounting base, and the other end of the rotating assembly is connected with the sliding assembly. The sofa cushion rotating mechanism solves the problems that a sliding block of an existing sofa cushion rotating mechanism is usually in direct contact with a sliding rail to slide, abrasion to the sliding rail and the sliding block is large, and the service life of a sofa is affected, indirect contact between the sliding rail and the sliding block is achieved, abrasion to the sliding rail and the sliding block can be reduced, and the service life of the sofa is prolonged. The service life of the sofa is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a sofa cushion rotating mechanism and a sofa. Background Art

[0002] In the design and manufacture of sofas, the rotation function of the seat cushion has gradually become one of the important elements to enhance the user experience. Especially in business reception, home entertainment or multi-functional space layout, the rotation function of the sofa seat cushion not only increases the flexibility of use, but also improves the utilization rate and interactivity of the space.

[0003] In the prior art, the sofa cushion rotation mechanism generally realizes the reversal of the cushion by the cooperation of the slide rail and the slider and the transmission effect of the connecting rod. However, the existing slider usually slides in direct contact with the slide rail, which causes great wear on the slide rail and the slider, thus affecting the service life of the sofa.

[0004] The above defects need to be solved urgently. Utility Model Content

[0005] In order to solve the problem that the slider of the existing sofa cushion rotating mechanism usually slides in direct contact with the slide rail, which causes great wear on the slide rail and the slider and shortens the service life of the sofa, the utility model provides a sofa cushion rotating mechanism and a sofa.

[0006] The technical solution of the utility model is as follows:

[0007] A sofa cushion rotating mechanism, comprising:

[0008] A mounting base, wherein two opposite side walls of the mounting base are provided with sliding rails, and the sliding rails are provided with a first arc-shaped guide groove;

[0009] A sliding assembly, the sliding assembly comprising a sliding block, the sliding block being provided with a second arc-shaped guide groove, the second arc-shaped guide groove being provided corresponding to the first arc-shaped guide groove;

[0010] A guide post, the guide post being inserted between the second arc-shaped guide groove and the first arc-shaped guide groove;

[0011] A rotating assembly, one end of which is connected to the mounting base, and the other end of which is connected to the sliding assembly.

[0012] According to the above-mentioned solution of the utility model, the first arc-shaped guide groove includes a first curved portion and a second curved portion connected to the first curved portion, the first curved portion is bent in a first direction, the second curved portion is bent in a second direction, and the first direction is opposite to the second direction.

[0013] According to the above-mentioned solution of the utility model, there are two first arc-shaped guide grooves, and the two first arc-shaped guide grooves are symmetrically arranged on both sides of the sliding track.

[0014] According to the above-mentioned scheme of the utility model, the second arc-shaped guide groove includes a third curved portion and a fourth curved portion connected to the third curved portion, the third curved portion is bent in the second direction, the fourth curved portion is bent in the first direction, and the first direction is opposite to the second direction.

[0015] According to the above-mentioned solution of the utility model, there are two second arc-shaped guide grooves, and the two second arc-shaped guide grooves are symmetrically arranged on both sides of the sliding block.

[0016] According to the above scheme of the utility model, the sliding assembly also includes a seat cushion sliding plate, the seat cushion sliding plate includes a top plate, the rotating assembly is connected to the top plate, first side plates are arranged on opposite sides of the top plate, and the sliding block is arranged on the first side plate.

[0017] According to the above solution of the utility model, a second side plate is arranged between the two first side plates, one end of the elastic member is connected to the second side plate, and the other end of the elastic member is connected to the mounting base.

[0018] According to the above scheme of the utility model, the rotating assembly includes a seat cushion mounting plate, a first connecting rod, and a second connecting rod. The seat cushion mounting plate is connected to the sliding assembly, one end of the first connecting rod is connected to the seat cushion mounting plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the mounting base.

[0019] According to the utility model of the above scheme, a thrust needle roller bearing is arranged at the bottom of the seat cushion mounting plate, and the seat cushion mounting plate is connected to the sliding assembly through the thrust needle roller bearing.

[0020] A sofa comprises the sofa cushion rotating mechanism as described above.

[0021] The utility model according to the above scheme has the following beneficial effects:

[0022] In the above-mentioned sofa cushion rotating mechanism, a first arc-shaped guide groove is arranged on the sliding track of the mounting base, and a second arc-shaped guide groove corresponding thereto is arranged on the sliding block of the sliding assembly, so that the guide column can be inserted between the two arc-shaped guide grooves, thereby making the sliding block slide along the guide column, thereby realizing indirect contact between the sliding track and the sliding block. Compared with the traditional direct contact sliding, the utility model can reduce the wear of the sliding track and the sliding block, and extend the service life of the sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the structural schematic diagrams when the seat cushion sliding plate is in the initial position;

[0024] Figure 2 The second structural diagram of the seat cushion sliding plate in the initial position;

[0025] Figure 3 It is one of the structural schematic diagrams when the seat cushion sliding plate is in the rotation position;

[0026] Figure 4 The second structural diagram of the seat cushion sliding plate in the rotation position;

[0027] Figure 5 This is a disassembled diagram of the utility model.

[0028] In the figure, 1. mounting base; 2. sliding assembly; 21. sliding block; 211. second arc-shaped guide groove; 2111. third bend; 2112. fourth bend; 22. seat cushion sliding plate; 221. top plate; 222. first side plate; 223. second side plate; 3. guide column; 4. rotating assembly; 41. seat cushion mounting plate; 42. first connecting rod; 43. second connecting rod; 5. sliding track; 51. first arc-shaped guide groove; 511. first bend; 512. second bend; 6. elastic member; 7. thrust needle roller bearing. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The utility model provides a sofa, including a sofa support, a sofa cushion, and a sofa cushion rotating mechanism. The sofa cushion rotating mechanism is arranged on the sofa support, and the sofa cushion is arranged on the sofa cushion rotating mechanism. The sofa cushion realizes 90° rotation and reversal through the sofa cushion rotating mechanism, so as to meet the sofa use requirements in different scenes, thereby improving the interest and practicality of the sofa when in use. In addition, there is an angle between the length direction of the sofa cushion rotating mechanism and the length direction of the sofa support, and the length direction of the sofa cushion rotating mechanism can be designed to be 45° with the length direction of the sofa support, thereby improving the convenience of the sofa cushion rotation, and making the sofa cushion more natural and smooth during the rotation process. Of course, in actual design, the positional relationship between the length direction of the sofa cushion rotating mechanism and the length direction of the sofa support can be designed according to actual needs.

[0031] like Figures 1 to 5As shown, in this embodiment, the sofa cushion rotation mechanism includes a mounting base 1, a sliding assembly 2, a guide column 3, and a rotating assembly 4. The mounting base 1 is arranged on the sofa bracket, and sliding rails 5 are arranged on the two opposite side walls of the mounting base 1, and the sliding rails 5 are arranged with a first arc-shaped guide groove 51. The sliding assembly 2 includes a sliding block 21, and the sliding block 21 is provided with a second arc-shaped guide groove 211, and the second arc-shaped guide groove 211 is arranged corresponding to the first arc-shaped guide groove 51. The guide column 3 is inserted between the second arc-shaped guide groove 211 and the first arc-shaped guide groove 51, so that the sliding block 21 slides along the guide column 3, and the indirect contact between the sliding rail 5 and the sliding block 21 is realized. Compared with the traditional direct contact sliding, the utility model can reduce the wear of the sliding rail 5 and the sliding block 21, and extend the service life of the sofa.

[0032] like Figures 4 to 5 As shown, in this embodiment, the guide column 3 is arranged on the mounting base 1, and the surface of the guide column 3 is smooth, which can further reduce the friction between the guide column 3 and the sliding track 5 and the sliding block 21, and reduce wear. In addition, the length direction of the guide column 3 is parallel to the length direction of the sliding track 5, which can ensure the stability and smoothness of the sliding block 21 during the sliding process, and can also withstand the force generated when the seat cushion rotates, ensuring the overall strength and durability of the sofa seat cushion rotation mechanism. When the sliding block 21 moves under the guidance of the guide column 3, its motion trajectory is controlled on a predetermined straight line, avoiding jamming or damage caused by offset or shaking, and ensuring the smoothness and accuracy of the rotation action.

[0033] like Figures 4 to 5 As shown, in this embodiment, the first arc guide groove 51 includes a first bend portion 511 and a second bend portion 512 connected to the first bend portion 511, the first bend portion 511 bends in the first direction, and the second bend portion 512 bends in the second direction, the second arc guide groove 211 includes a third bend portion 2111 and a fourth bend portion 2112 connected to the third bend portion 2111, the third bend portion 2111 bends in the second direction, and the fourth bend portion 2112 bends in the first direction, and the first direction is opposite to the second direction. Specifically, the first direction is vertically downward, and the second direction is vertically upward, that is, the first bend portion 511 bends downward, the second bend portion 512 bends upward, the third bend portion 2111 bends upward, and the fourth bend portion 2112 bends downward. When installing, the second curved portion 512 and the fourth curved portion 2112 are placed correspondingly, and the second curved portion 512 and the fourth curved portion 2112 cooperate with each other to form an annular groove for accommodating the guide column 3, so that the sliding rail 5, the sliding block 21 and the guide column 3 are tightly matched, which facilitates the sliding block 21 to slide along the guide column 3 and improves the stability of the assembly.

[0034] like Figures 4 to 5As shown, in the present embodiment, there are two first arc-shaped guide grooves 51 and two second arc-shaped guide grooves 211, and the two first arc-shaped guide grooves 51 are symmetrically arranged on both sides of the sliding rail 5, and the two second arc-shaped guide grooves 211 are symmetrically arranged on both sides of the sliding block 21, so that the sliding block 21 is more stable when sliding, preventing the sliding block 21 from shaking or tilting during the movement, and also making the sliding action of the sliding block 21 smoother and more precise.

[0035] like Figures 4 to 5 As shown, in this embodiment, the sliding assembly 2 also includes a cushion sliding plate 22, the cushion sliding plate 22 includes a top plate 221, the rotating assembly 4 is connected to the top plate 221, the sofa cushion is installed on the rotating assembly 4, and first side plates 222 are arranged on opposite sides of the top plate 221. The sliding block 21 is arranged on the first side plate 222 to ensure that the cushion sliding plate 22 can move smoothly and unimpeded forward and backward on the sliding track 5. In addition, a second side plate 223 is provided between the two first side plates 222, one end of the elastic member 6 is connected to the second side plate 223, and the other end of the elastic member 6 is connected to the mounting base 1. The cushion sliding plate 22 is provided by the elastic member 6 so that after the rotating assembly 4 rotates, the cushion sliding plate 22 is reset to the initial position, so that the sofa cushion is continuously subjected to the pulling force of the elastic member 6 during use, reducing the possibility of loosening or slipping, and making the state switching of the sofa cushion more convenient and quick. The user only needs to gently rotate to easily adjust the angle of the sofa cushion, and then under the action of the elastic member 6, the cushion sliding plate 22 is automatically reset without additional operation, which improves the practicality of the sofa. In addition, the elastic member 6 can be designed as a spring. Of course, in actual design, the structure of the elastic member 6 can be designed according to actual needs.

[0036] like Figures 1 to 5 As shown, in this embodiment, one end of the rotating assembly 4 is connected to the mounting base 1, and the other end of the rotating assembly 4 is connected to the sliding assembly 2. Specifically, the rotating assembly 4 includes a cushion mounting plate 41, a first connecting rod 42, and a second connecting rod 43. The sofa cushion is mounted on the cushion mounting plate 41, the cushion mounting plate 41 is connected to the sliding assembly 2, the cushion mounting plate 41 is arranged on the top of the cushion sliding plate 22, one end of the first connecting rod 42 is fixedly connected to the cushion mounting plate 41, the other end of the first connecting rod 42 is hinged to one end of the second connecting rod 43, and the other end of the second connecting rod 43 is hinged to the mounting base 1. When the second connecting rod 43 is in the initial position, the connection point between the cushion mounting plate 41 and the first connecting rod 42 is close to the hinge point between the second connecting rod 43 and the mounting base 1. When the second connecting rod 43 rotates 180°, the cushion mounting plate 41 rotates 90° counterclockwise with the cooperation of the first connecting rod 42 and the second connecting rod 43, thereby rotating the sofa cushion 90°.

[0037] In this embodiment, the length of the first connecting rod 42 and the second connecting rod 43 can be adjusted according to the length of the sofa cushion, and the length of the first connecting rod 42 and the second connecting rod 43 can be designed to be longer to meet the needs of a sofa with a large seat depth. In addition, a thrust needle roller bearing 7 is provided at the bottom of the cushion mounting plate 41, and the cushion mounting plate 41 is connected to the sliding assembly 2 through the thrust needle roller bearing 7. The thrust needle roller bearing 7 supports the cushion mounting plate 41, thereby ensuring the service life and safety of the cushion mounting plate 41.

[0038] When the present invention is in use, when it is necessary to switch the usage form of the sofa, the sofa cushion connected to the cushion mounting plate 41 is pushed and pulled, so that the cushion sliding plate 22 slides toward the end away from the elastic member 6, so that the cushion sliding plate 22 moves to the rotation position, the elastic member 6 is stretched, and the cushion mounting plate 41 is rotated, and the first connecting rod 42 rotates with the cushion mounting plate 41, thereby driving the second connecting rod 43 to rotate. When the sofa cushion is rotated to a predetermined angle, the sofa cushion is released, and the elastic member 6 pulls the cushion sliding plate 22 to slide toward the end close to the elastic member 6, so that the cushion sliding plate 22 is reset to the initial position. At this time, under the action of the elastic force of the elastic member 6, the second connecting rod 43 is subjected to a certain resistance after being reset, making it difficult for the second connecting rod 43 to rotate, thereby ensuring that the sofa cushion can be firmly maintained in the specific usage form selected by the user, whether it is a more upright sitting posture or a completely relaxed lying posture, it can be perfectly supported and adapted.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0040] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A sofa cushion rotating mechanism, characterized in that: include: A mounting base, wherein two opposite side walls of the mounting base are provided with sliding rails, and the sliding rails are provided with a first arc-shaped guide groove; A sliding assembly, the sliding assembly comprising a sliding block, the sliding block being provided with a second arc-shaped guide groove, the second arc-shaped guide groove being provided corresponding to the first arc-shaped guide groove; A guide post, the guide post being inserted between the second arc-shaped guide groove and the first arc-shaped guide groove; A rotating assembly, one end of which is connected to the mounting base, and the other end of which is connected to the sliding assembly.

2. The sofa cushion rotating mechanism according to claim 1, characterized in that: The first arc-shaped guide groove includes a first curved portion and a second curved portion connected to the first curved portion, the first curved portion is curved in a first direction, the second curved portion is curved in a second direction, and the first direction is opposite to the second direction.

3. The sofa cushion rotating mechanism according to claim 1, characterized in that: There are two first arc-shaped guide grooves, and the two first arc-shaped guide grooves are symmetrically arranged on both sides of the sliding track.

4. The sofa cushion rotating mechanism according to claim 1, characterized in that: The second arc-shaped guide groove includes a third curved portion and a fourth curved portion connected to the third curved portion, the third curved portion is curved in a second direction, the fourth curved portion is curved in a first direction, and the first direction is opposite to the second direction.

5. The sofa cushion rotating mechanism according to claim 1, characterized in that: There are two second arc-shaped guide grooves, and the two second arc-shaped guide grooves are symmetrically arranged on both sides of the sliding block.

6. The sofa cushion rotating mechanism according to claim 1, characterized in that: The sliding assembly also includes a cushion sliding plate, the cushion sliding plate includes a top plate, the rotating assembly is connected to the top plate, first side plates are arranged on opposite sides of the top plate, and the sliding block is arranged on the first side plates.

7. The sofa cushion rotating mechanism according to claim 6, characterized in that: A second side plate is arranged between the two first side plates, one end of the elastic member is connected to the second side plate, and the other end of the elastic member is connected to the mounting base.

8. The sofa cushion rotating mechanism according to claim 1, characterized in that: The rotating assembly includes a seat cushion mounting plate, a first connecting rod, and a second connecting rod. The seat cushion mounting plate is connected to the sliding assembly, one end of the first connecting rod is connected to the seat cushion mounting plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the mounting base.

9. The sofa cushion rotating mechanism according to claim 8, characterized in that: A thrust needle roller bearing is arranged at the bottom of the seat cushion mounting plate, and the seat cushion mounting plate is connected to the sliding assembly via the thrust needle roller bearing.

10. A sofa, characterized in that: It comprises a sofa cushion rotating mechanism as described in any one of claims 1 to 9.

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