Frame with synchronizing shaft and functional rack thereof

Abstract

The utility model provides a frame with a synchronizing shaft and a functional rack thereof, which relate to the technical field of sofa seats and comprise a frame body, the synchronizing shaft and a connecting component for connecting the frame body with the synchronizing shaft, the connecting component is located on the inner side of the frame body and comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is rotationally connected with the frame body, the other end of the first connecting piece is rotationally connected with one end of the second connecting piece, and the other end of the second connecting piece is connected with the synchronizing shaft; a mounting hole is formed in the second connecting piece, and the synchronizing shaft does circular arc motion with the mounting hole as the circle center in the moving process of the frame body. The beneficial effects of the utility model are that the frame body is connected with the synchronizing shaft, which is helpful for enhancing the synchronism of the movement of the two sides of the frame body when the frame body is stretched and contracted, so that the whole body does not shake, and the stability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa seats, in particular to a frame with a synchronous shaft and a functional frame thereof. Background Art

[0002] Functional sofas are a new type of soft furniture that builds on the foundation of conventional sofas, adding features like posture adjustment, steering, rocking, massage, and storage. While their design and usage are generally similar to those of standard fixed sofas, they are more ergonomically tailored to core design criteria like backrest angle and softness. Functional sofas can be categorized by the material used, including leather, fabric, and leather-and-cloth. They can also be divided into manual and electric versions based on their performance. Functional sofas offer advantages such as optimized space utilization, high comfort, enhanced functionality, and space conservation.

[0003] Chinese patent authorization number CN220384718U discloses a new type of integrated sofa sliding and extending functional frame. The specific technical solution is "including a chair frame base and a movable frame, the movable frame including a seat cushion mounting rod, a footrest assembly and a backrest assembly; the movable frame is slidably assembled on the chair frame base; the movable frame slides relative to the chair frame base to form an extension or contraction shape." The functional frame is provided with a chair frame base, and the chair frame base is slidably connected to the movable frame. The movable frame is provided with a seat cushion mounting rod, and the seat cushion of the sofa chair is connected to the seat cushion mounting rod, so that the seat cushion of the sofa chair can slide relative to the chair frame base. However, the defect of the functional frame is that the seat cushion mounting rods on both sides are relatively independent, and there is no relevant synchronization structure to connect the two. Therefore, it is easy to be out of sync and jitter during extension and contraction. Therefore, it is necessary to disclose a frame with a synchronization shaft to overcome the above defects. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and provides a frame with a synchronous shaft and a functional frame thereof. The synchronous shaft is connected to the frame body, which helps to enhance the synchronization of the movement of both sides of the frame body during extension and contraction, so that the whole body will not shake and has good stability.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A frame with a synchronous shaft includes a frame body, a synchronous shaft and a connecting member for connecting the frame body and the synchronous shaft; the connecting member is located on the inner side of the frame body, and the connecting member includes a first connecting piece and a second connecting piece, one end of the first connecting piece is rotatably connected to the frame body, the other end of the first connecting piece is rotatably connected to one end of the second connecting piece, and the other end of the second connecting piece is connected to the synchronous shaft; a mounting hole is provided on the second connecting piece, and when the frame body moves, the synchronous shaft makes a circular motion with the mounting hole as the center.

[0007] Furthermore, the second connecting plate includes a first plate and a second plate that are perpendicular to each other; the synchronization shaft is a square tube, the upper end of the first plate is rotatably connected to the first connecting plate, the mounting hole is opened at the lower end of the first plate close to the second plate, and the second plate is fixed to the synchronization shaft.

[0008] Furthermore, a plurality of springs are provided on the frame body, and the springs are arched upward to be higher than the plane where the frame body is located, so that the plurality of springs form an arched surface with elastic supporting function.

[0009] Furthermore, the spring is in a flat, bow-shaped bend, and is bent after extending laterally toward both sides of the frame body to increase the supporting force area of ​​the arched surface.

[0010] Furthermore, the transverse extension width of the spring is 5 to 20 cm.

[0011] Furthermore, a fixing clip is provided on the frame body, and the end of the spring is connected and fixed to the fixing clip.

[0012] Furthermore, the distance between the highest point of the arched surface formed by the spring and the plane where the frame body is located is 3 to 12 cm.

[0013] Furthermore, the frame body is provided with a connecting member for connecting with a seat cushion.

[0014] Furthermore, the connecting member is a connecting hole; or the connecting member is a connecting plate, and an elliptical hole is provided on the connecting plate.

[0015] A telescopic functional frame comprises any one of the above-mentioned frames with synchronous shafts and a functional frame, wherein the frame is slidably connected to the functional frame.

[0016] Furthermore, it also includes a gas pressure rod, one end of the gas pressure rod is hinged to the functional frame, and the other end of the gas pressure rod is hinged to the connecting part of the first connecting piece and the second connecting piece.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model has a synchronization shaft connected to the frame body, which helps to enhance the synchronization of the movement of both sides of the frame body when extending and contracting, so that the whole body will not shake and has good stability; it also has an arched spring, and the sofa soft pad is placed on the spring. The spring is formed like an arch bridge, and has elastic potential energy when pressed down. After the pressure is released, it can bounce up and reset, with good elasticity, not easy to deform, and high comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the stowed structure of the functional frame according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the expanded structure of the functional frame according to an embodiment of the present utility model;

[0022] Figure 3 It is a partial structural diagram of the functional frame described in the embodiment of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the frame body according to an embodiment of the present utility model;

[0024] Figure 5 yes Figure 4 A magnified image of the circled area in middle A;

[0025] Figure 6 This is a schematic diagram of another structural mode of the connecting member according to an embodiment of the present utility model;

[0026] Figure 7 It is a top view of the functional frame described in the embodiment of the utility model.

[0027] In the figure: 1. Frame body; 2. Spring; 3. Fixing clip; 4. Connecting hole; 5. Connecting plate; 501. Oval hole; 6. Synchronous shaft; 7. First connecting plate; 8. Second connecting plate; 801. First plate; 8011. Mounting hole; 802. Second plate; 9. Functional frame; 10. Pneumatic rod. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0029] like Figures 1 to 7As shown, the utility model claims protection for a frame with a synchronous shaft, including a frame body 1, a synchronous shaft 6 and a connecting member for connecting the frame body 1 and the synchronous shaft 6; by connecting the synchronous shaft 6 to the frame body 1, it helps to enhance the synchronization of the movement of both sides of the frame body 1 during extension and contraction, so that the whole body will not shake and has good stability; specifically, the connecting member is located on the inner side of the frame body 1, and the connecting member is used to connect the frame body 1 to the frame body of the functional frame 9, and the connecting member includes a first connecting piece 7 and a second connecting piece 8, one end of the first connecting piece 7 is rotatably connected to the frame body 1, and the other end of the first connecting piece 7 is rotatably connected to the second connecting piece One end of the piece 8 is rotatably connected, and the other end of the second connecting piece 8 is connected to the synchronization shaft 6; a mounting hole 8011 is provided on the second connecting piece 8, and a bolt is screwed into the mounting hole 8011 to make the second connecting piece 8 rotatably connected to the frame body of the functional frame 9; an electric push rod is usually used to push and pull the frame body 1. When the electric push rod pushes and pulls the frame body 1, the second connecting piece 8 and the first connecting piece 7 are linked, and the synchronization shaft 6 moves in a circular arc with the mounting hole 801 as the center. The arrangement of the synchronization shaft 6, the first connecting piece 7 and the second connecting piece 8 helps to enhance the synchronization and stability of the movement on both sides of the frame body 1, so that the whole body will not shake.

[0030] from Figure 3 It can be seen that the second connecting piece 8 includes a first plate body 801 and a second plate body 802 which are perpendicular to each other; the synchronous shaft 6 is a square tube, the upper end of the first plate body 801 is rotatably connected to the first connecting piece 7, and the mounting hole 8011 is opened at the lower end of the first plate body 801 near the second plate body 802, and the second plate body 802 is fixed to the synchronous shaft 6; the synchronous shaft 6 is designed as a square tube with a flat surface, which helps to fix the second plate body 802 tightly and improve the stability of the connection between the two.

[0031] A number of springs 2 are provided on the frame body 1. The springs 2 are arched upward to be higher than the plane where the frame body 1 is located, so that the springs 2 form an arched surface with an elastic supporting function; the soft bag is placed on the spring 2, and the spring 2 is formed like an arch bridge. It has elastic potential energy when pressed down, and can bounce up and reset after the pressure is released. It has good elasticity, is not easy to deform, and is highly comfortable.

[0032] like Figure 4As shown, spring 2 has a flat, arched shape and is bent after extending laterally toward both sides of the frame body 1 to increase the supporting area of ​​the arched surface. Spring 2 has a flat, arched shape and is bent after extending laterally toward both sides of the frame body 1 to increase the supporting area of ​​the arched surface, thereby enhancing the support effect on the sofa upholstery. The lateral extension width of spring 2 is 5 to 20 cm. In this embodiment, the width is 12 cm. The inventors have repeatedly verified that this width not only provides a sufficient lateral support area, but also meets the required elastic support requirements. It also uses a suitable amount of material, without causing bulk and increasing costs.

[0033] A fixing clip 3 is provided on the frame body 1 , and the end of the spring 2 is connected and fixed to the fixing clip 3 , so that the spring 2 is fixed to the frame body 1 through the fixing clip 3 .

[0034] The distance between the highest point of the arched surface formed by the spring 2 and the plane where the frame body 1 is located is 3 to 12 cm; in this embodiment, the distance is 8 cm. Therefore, after repeated verification by the inventors, this height of the arch of the spring 2 can provide the sofa soft pad with elastic space for up and down movement, and can also make the sofa soft pad be placed firmly, without a floating feeling when in use.

[0035] The frame body 1 is provided with a connecting member for connecting with the seat cushion; the connecting member is a connecting hole 4; Figure 4 as well as Figure 5 As shown, as one structure, the connecting member is a connecting hole 4, and a bolt is directly inserted into the connecting hole 4 to fix the seat cushion to the frame body 1; or, as another structure, the connecting member is a connecting plate 5, and an elliptical hole 501 is provided on the connecting plate 5, and the seat cushion is fixed to the frame body 1 by inserting a bolt or screwing in the elliptical hole 501; the above two connection methods are both acceptable and are not limited here.

[0036] The present invention further provides a telescopic functional frame, comprising a frame with a synchronous shaft as described in any of the above items, so that the telescopic functional frame has good stability during extension and contraction, prevents the entire frame from shaking, and has good elasticity and a comfortable ride. The frame also includes a functional frame 9, the frame being slidably connected to the functional frame 9, the cylinder seat of the cylinder being connected to the functional frame 9, and the piston rod of the cylinder being connected to the frame, so that the frame is pushed and pulled to slide relative to the functional frame 9 to extend or retract. Specifically, the frame also includes a pneumatic rod 10, one end of the pneumatic rod 10 being hinged to the functional frame 9, and the other end of the pneumatic rod 10 being hinged to the junction of the first connecting piece 7 and the second connecting piece 8. The functional frame 9 also includes a footrest assembly, which is connected to the functional frame 9. The product design requirement is that, when extending, the pedal assembly is pushed out by the piston rod of the cylinder, and then the piston rod of the cylinder is further pushed out, and then the frame is pushed and moved; and when retracting, the piston rod of the cylinder is retracted by first retracting the pedal assembly, and then the piston rod of the cylinder is further retracted, and then the frame is pulled back. Therefore, in this structure, the above effect can be achieved by installing the pneumatic rod 10. It is known from the prior art that the extension or retraction of the pneumatic rod 10 has resistance, that is, when pushing out, the cylinder first pushes out the pedal assembly, then overcomes the resistance of the pneumatic rod 10, and then pushes out the frame. When retracting, the cylinder first pulls back the pedal assembly, then overcomes the resistance of the pneumatic rod 10, and then pulls back the frame. Without the pneumatic rod 10, the movement sequence of the pedal assembly and the frame would be difficult to determine, resulting in poor stability.

[0037] Because the stress points of the sofa are in a random state after a person sits down, the pressure on the buttocks is different at different specific positions on the sofa depending on whether the legs are leaning or not, and the extension of the telescopic frame follows the movement of the minimum stress point first, resulting in nonlinear extension and contraction, causing the sofa to shake and jerk. After adding the pneumatic rod 10, the sofa extension and contraction can be fixed to linear extension and contraction, such as pushing the footrest assembly out first and then the frame when extending; pulling the footrest assembly back first and then the frame when retracting, making the extension and contraction sequence controllable.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A frame with a synchronous shaft, characterized in that: The invention comprises a frame body (1), a synchronization shaft (6), and a connecting member for connecting the frame body (1) and the synchronization shaft (6); the connecting member is located on the inner side of the frame body (1), and the connecting member comprises a first connecting piece (7) and a second connecting piece (8); one end of the first connecting piece (7) is rotationally connected to the frame body (1), the other end of the first connecting piece (7) is rotationally connected to one end of the second connecting piece (8), and the other end of the second connecting piece (8) is connected to the synchronization shaft (6); a mounting hole (8011) is provided on the second connecting piece (8), and when the frame body (1) moves, the synchronization shaft (6) performs an arc motion with the mounting hole (8011) as the center.

2. The frame with synchronous shaft according to claim 1, characterized in that: The second connecting piece (8) includes a first plate (801) and a second plate (802) that are perpendicular to each other; the synchronous shaft (6) is a square tube, the upper end of the first plate (801) is rotatably connected to the first connecting piece (7), the mounting hole (8011) is opened at the lower end of the first plate (801) near the second plate (802), and the second plate (802) is fixed to the synchronous shaft (6).

3. The frame with synchronous shaft according to claim 2, characterized in that: A plurality of springs (2) are provided on the frame body (1), and the springs (2) are arched upward to be higher than the plane where the frame body (1) is located, so that the plurality of springs (2) form an arched surface with an elastic supporting function.

4. The frame with synchronous shaft according to claim 3, characterized in that: The spring (2) is flat and arched, and is bent after being extended laterally toward both sides of the frame body (1) to increase the supporting force area of ​​the arched surface.

5. The frame with synchronous shaft according to claim 4, characterized in that: The transverse extension width of the spring (2) is 5 to 20 cm.

6. The frame with synchronous shaft according to claim 3, characterized in that: A fixing clamp (3) is provided on the frame body (1), and the end of the spring (2) is connected and fixed to the fixing clamp (3).

7. The frame with synchronous shaft according to claim 6, characterized in that: The distance between the highest point of the arched surface formed by the spring (2) and the plane where the frame body (1) is located is 3 to 12 cm.

8. The frame with synchronous shaft according to claim 6, characterized in that: The frame body (1) is provided with a connecting member for connecting with a seat cushion; the connecting member is a connecting hole (4); or the connecting member is a connecting plate (5), and the connecting plate (5) is provided with an elliptical hole (501).

9. A telescopic functional frame, characterized in that: The frame with a synchronous shaft according to any one of claims 1 to 8 further comprises a functional frame (9), and the frame is slidably connected to the functional frame (9).

10. The telescopic functional frame according to claim 9, characterized in that: It also includes a pneumatic rod (10), one end of which is hinged to the functional frame (9), and the other end of which is hinged to the connecting portion of the first connecting piece (7) and the second connecting piece (8).

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