Shake-free telescopic functional frame and sofa applying same

Abstract

The utility model provides a shake-free telescopic functional frame and a sofa applying the same, and relates to the technical field of daily home furnishing, the shake-free telescopic functional frame comprises a base and a telescopic functional frame connected to the base in a sliding manner; a guide groove is formed in the base, and a first sliding component and a second sliding component which are matched with the guide groove for use are at least arranged on the corresponding side of the extension function frame; the first sliding component comprises a mounting plate, the upper end of the mounting plate is freely and rotatably connected to the extension function frame, and guide pieces are arranged on the two sides of the lower end of the mounting plate and movably assembled in the guide grooves; when the extension function frame is stressed to slide relative to the base to form an extension or contraction state, the mounting plate freely rotates, so that the at least one guide piece is in sliding butt joint with the upper inner wall or the lower inner wall of the guide groove. The positioning and guiding device has the advantages that the positioning and guiding effects are achieved, the stability of the stretching function frame sliding relative to the base is enhanced, and the stretching function frame is prevented from shaking in the running process.

Description

Technical Field

[0001] This utility model relates to the field of everyday home technology, and in particular to a non-shaking telescopic frame and a sofa using the same. Background Technology

[0002] Functional sofas are a new type of upholstered furniture that adds features such as posture adjustment, turning, rocking, massage, and storage to a standard sofa frame. They typically resemble regular fixed sofas in appearance and usage scenarios, but their core design parameters, such as backrest angle and softness, are more ergonomically designed. Functional sofas can be categorized by upholstery materials (leather, fabric, leather and fabric, etc.) and by performance (manual or electric). They offer advantages such as optimized space utilization, high comfort, strong functionality, and space saving.

[0003] Chinese Patent No. CN 221204759 U discloses an easy-to-install sofa extendable frame and base, including a sofa frame base and an extendable frame. The extendable frame includes a seat cushion mounting bracket, a footrest assembly, and a backrest assembly. The seat cushion mounting bracket and the footrest assembly are hinged together. The extendable frame is slidably mounted on the sofa frame base, and the extendable frame slides relative to the sofa frame base to extend or retract. However, in this structure, there is no related guiding and restraining structure between the extendable frame and the sofa frame base, which makes the extendable frame prone to wobbling when extending or retracting relative to the sofa frame base, affecting stability. Therefore, there is a need to disclose a wobbly extendable frame to overcome the above-mentioned defects. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a non-shaking telescopic functional frame with good stability, which helps to improve the swaying phenomenon that occurs when the telescopic functional frame is extended or retracted.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A wobbly telescopic frame includes a base and a telescopic frame slidably connected to the base. The base has a guide groove, and the corresponding side of the telescopic frame has at least one first sliding member and one second sliding member that are compatible with the guide groove. The first sliding member includes a mounting plate, the upper end of which is rotatably connected to the telescopic frame. Guide members are provided on both sides of the lower end of the mounting plate, and the guide members are movably assembled in the guide groove. The guide groove has an upper inner wall and a lower inner wall, and the guide members are located between the upper and lower inner walls. When the telescopic frame is subjected to force and slides relative to the base to form an extended or retracted state, the mounting plate rotates freely, causing at least one guide member to slide against the upper or lower inner wall of the guide groove.

[0007] Furthermore, the guide groove includes a first guide groove and a second guide groove. The first guide groove is located on the side near the front end of the base, and the second guide groove is located on the side near the rear end of the base. The guide member is slidably connected in the first guide groove, and the second sliding member is slidably connected in the second guide groove.

[0008] Furthermore, the mounting plate is provided with mounting holes, and fasteners are installed in the mounting holes to rotatably connect the mounting plate to the extension functional frame; assembly holes for fixing guide components are provided on both sides below the mounting holes.

[0009] Furthermore, the mounting hole is located on the perpendicular line of the line connecting the centers of the two mounting holes.

[0010] Furthermore, the extendable frame includes a left frame and a right frame, both of which are located inside the base; a synchronous shaft is provided between the left and right frames, and hinged plates are provided on both sides of the synchronous shaft. The hinged plates include a first plate and a second plate that are hinged together. One end of the first plate is hinged to the extendable frame, the other end of the first plate is hinged to one end of the second plate, and the other end of the second plate is connected to the synchronous shaft.

[0011] Furthermore, the guide and the second sliding member are rods or rollers.

[0012] Furthermore, it also includes an electric actuator, the body of which is hinged to the base, and the telescopic rod of which is hinged to the extension frame.

[0013] Furthermore, it also includes a tension spring, one end of which is connected to the base and the other end of which is connected to the extension frame. When the extension frame is in a fully retracted state, the tension spring is in a natural, unstretched state. As the extension frame moves in the extension direction, the tension spring will gradually stretch and exert a tension force in the opposite direction of the movement on the extension frame.

[0014] Furthermore, both the first guide groove and the second guide groove are semi-enclosed channel structures opened towards the side of the extension functional frame.

[0015] This utility model also claims protection for a sofa that uses the wobbly telescopic frame described in any of the above claims, thereby helping to improve the stability of the sofa during operation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention achieves positioning and guiding functions by movably assembling a first sliding component and a second sliding component on the guide groove of the base. This helps to enhance the stability of the extension frame when it slides relative to the base and prevents the extension frame from shaking during operation. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a side view of the non-shaking telescopic functional frame described in this utility model;

[0020] Figure 2 This is a perspective view of the wobbly telescopic functional frame described in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first sliding member of this utility model.

[0022] In the picture:

[0023] 1. Base; 101. First guide groove; 102. Second guide groove; 2. Extension functional frame; 201. Left frame; 202. Right frame; 203. Synchronous shaft; 204. First plate; 205. Second plate; 3. First sliding component; 301. Mounting plate; 302. Mounting hole; 303. Assembly hole; 4. Second sliding component; 5. Electric push rod; 6. Tension spring. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] like Figures 1 to 3As shown, this utility model discloses a wobbly telescopic functional frame, including a base 1 and a telescopic functional frame 2 slidably connected to the base 1. The front and rear ends of the telescopic functional frame 2 can be equipped with foot pedals and backrests as needed. In this technical solution, the base 1 is provided with a guide groove, and the corresponding side of the telescopic functional frame 2 is provided with at least a first sliding member 3 and a second sliding member 4 that are compatible with the guide groove. The first sliding member 3 includes a mounting plate 301, on which mounting holes 302 are provided. Fasteners are installed in the mounting holes 302 to rotatably connect the mounting plate 301 to the telescopic functional frame 2. The fasteners can be bolts or screws, in a partially locked state, allowing the mounting plate 301 to rotate freely. Assembly holes 303 for fixing guide members are provided on both sides below the mounting holes 302. In this embodiment, the guide members can be columnar rods or roller structures. Through the above configuration, the upper end of the mounting plate 301 can rotate freely. The mounting plate 301 is attached to the extension frame 2. Guide members are provided on both sides of the lower end of the mounting plate 301. The guide members are movably assembled in the guide groove. The guide groove is opened on the inner side of the base 1. In this embodiment, the guide groove includes a first guide groove 101 and a second guide groove 102. The first guide groove 101 is located on the side near the front end of the base 1, and the second guide groove 102 is located on the side near the rear end of the base 1. That is, in this embodiment, the first guide groove 101 and the second guide groove 102 are set separately and independently. As another improvement, the first guide groove 101 and the second guide groove 102 can also be connected as one, that is, there is only one guide groove on the inner side of the base 1 that extends from the position near the front end to the position near the rear end.

[0026] The guide groove has an upper inner wall and a lower inner wall, and the guide member is located between the upper inner wall and the lower inner wall. When the extension function frame 2 is subjected to force and slides relative to the base 1 to form an extension or contraction state, the mounting plate 301 rotates freely so that at least one guide member connected to the mounting plate 301 slides against the upper inner wall or the lower inner wall of the first guide groove 101 in the guide groove.

[0027] In this embodiment, the second sliding member 4 is also a columnar rod or a rolling wheel structure; the second sliding member 4 is slidably connected in the second guide groove 102. Therefore, during the sliding process of the extension functional frame 2, the second sliding member 4 works in conjunction with the guide member on the mounting plate 301 to form a sliding limit, thereby preventing the extension functional frame 2 from shaking.

[0028] The guide member can be a columnar rod or a roller structure. During the movement of the extension functional frame 2 relative to the base 1, the guide member moves in the first guide groove 101. The second sliding member 4 can also be a rod or roller structure. During the movement of the extension functional frame 2 relative to the base 1, the second sliding member 4 moves in the second guide groove 102.

[0029] like Figure 1 As shown, the extension functional frame 2 slides relative to the base 1 to form an extended or contracted state, and the first sliding member 3 and the second sliding member 4 move synchronously in the guide groove; the mounting hole 302 is located on the vertical line of the line connecting the centers of the two mounting holes 303, and the structure is symmetrical; since the two mounting holes 303 are respectively connected to guide members, the two guide members move together along the length direction of the first guide groove 101.

[0030] The purpose of the above setting is to limit the extension function frame 2 by means of the two guide members on the first sliding member 3 and the sliding assembly of the second sliding member 4, so that the extension function frame 2 is not easy to shake when it slides relative to the base 1 to form an extension or contraction state, thus maintaining the stability of operation.

[0031] The extendable frame 2 includes a left frame 201 and a right frame 202, both located inside the base 1. Before assembly, the left frame 201 and right frame 202 are independent and separate, facilitating installation. Figure 2 As can be seen, both the first guide groove 101 and the second guide groove 102 are semi-enclosed channel structures opened towards the side of the extension functional frame 2. Therefore, during installation, the guide members on the left frame 201 and the right frame 202 are first inserted into the first guide groove 101 and the second guide groove 102 respectively, and then the left frame 201 and the right frame 202 are fixed, so that the guide members will not come loose from the first guide groove 101 and the second guide groove 102. In addition, the semi-enclosed channel structure helps to surround and limit the guide members in the four directions of up, down, front and back, making it difficult for them to come loose.

[0032] A synchronous shaft 203 is provided between the left frame 201 and the right frame 202. Hinged plates are provided on both sides of the synchronous shaft 203. The hinged plates include a first plate 204 and a second plate 205 that are hinged together. One end of the first plate 204 is hinged to the extension functional frame 2, and the other end of the first plate 204 is hinged to one end of the second plate 205. The other end of the second plate 205 is connected to the synchronous shaft 203. When the extension functional frame 2 moves relative to the base 1, the clamping angle between the first plate 204 and the second plate 205 will change. Through the arrangement of the synchronous shaft 203, the first plate 204 and the second plate 205, the left frame 201 and the right frame 202 can be connected to form a whole, and the phenomenon of asynchronous operation of the left and right sides of the extension functional frame 2 will not occur.

[0033] It also includes an electric push rod 5, the body of which is hinged to the base 1, and the telescopic rod of which is hinged to the extension function frame 2. The electric push rod 5 has a pushing and pulling action on the extension function frame 2, so that the extension function frame 2 slides relative to the base 1 to form an extended or retracted state.

[0034] It also includes a tension spring 6, one end of which is connected to the base 1, and the other end of which is connected to the extension frame 2. When the extension frame 2 is in a fully retracted state, the tension spring 6 is in a natural, unstretched state. As the extension frame 2 moves in the extension direction, the tension spring 6 will gradually stretch and exert a tension force in the opposite direction of the movement on the extension frame 2. The above-mentioned arrangement of the tension spring 6 ensures that the extension frame 2 maintains tension at all times during forward and backward movement, thereby helping to enhance the stability of the operation of the extension frame 2.

[0035] This utility model claims protection for a wobbly telescopic functional frame, which uses a first sliding member 3 and a second sliding member 4 movably mounted on the guide groove of the base 1 to achieve positioning and guiding functions, thereby enhancing the stability of the telescopic functional frame when it slides relative to the base and preventing the telescopic functional frame from wobbling during operation.

[0036] This utility model also claims protection for a sofa that uses the non-wobbling telescopic frame described in any of the above claims. The sofa cushion is installed on the telescopic frame 2, and armrests are installed on both sides of the base 1, thereby helping to improve the stability of the sofa during operation.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wobbly telescopic frame, characterized in that, The system includes a base (1) and an extension functional frame (2) slidably connected to the base (1). The base (1) is provided with a guide groove, and the corresponding side of the extension functional frame (2) is provided with at least a first sliding member (3) and a second sliding member (4) for use with the guide groove. The first sliding member (3) includes a mounting plate (301), the upper end of which is rotatably connected to the extension functional frame (2), and the lower ends of the mounting plate (301) are provided with guide members on both sides, which are movably assembled in the guide groove. The guide groove has an upper inner wall and a lower inner wall, and the guide member is located between the upper inner wall and the lower inner wall. When the extension functional frame (2) is subjected to force and slides relative to the base (1) to form an extension or contraction, the mounting plate (301) rotates freely so that at least one guide member slides against the upper inner wall or the lower inner wall of the guide groove.

2. The wobbly telescopic functional frame according to claim 1, characterized in that, The guide groove includes a first guide groove (101) and a second guide groove (102). The first guide groove (101) is located on the side near the front end of the base (1), and the second guide groove (102) is located on the side near the rear end of the base (1). The guide member is slidably connected in the first guide groove (101), and the second sliding member (4) is slidably connected in the second guide groove (102).

3. The wobbly telescopic functional frame according to claim 2, characterized in that, The mounting plate (301) has mounting holes (302) and fasteners are installed in the mounting holes (302) to rotatably connect the mounting plate (301) to the extension functional frame (2); assembly holes (303) for fixing guide components are provided on both sides below the mounting holes (302).

4. The wobbly telescopic functional frame according to claim 3, characterized in that, The mounting hole (302) is located on the vertical line connecting the centers of the two mounting holes (303).

5. The wobbly telescopic functional frame according to claim 1, characterized in that, The extension frame (2) includes a left frame (201) and a right frame (202), both of which are located inside the base (1). A synchronous shaft (203) is provided between the left frame (201) and the right frame (202). Hinged plates are provided on both sides of the synchronous shaft (203). The hinged plates include a first plate (204) and a second plate (205) that are hinged together. One end of the first plate (204) is hinged to the extension frame (2), and the other end of the first plate (204) is hinged to one end of the second plate (205). The other end of the second plate (205) is connected to the synchronous shaft (203).

6. The wobbly telescopic functional frame according to claim 3, characterized in that, The guide and the second sliding member (4) are rods or rollers.

7. The wobbly telescopic functional frame according to claim 1, characterized in that, It also includes an electric push rod (5), the body of which is hinged to the base (1), and the telescopic rod of which is hinged to the extension function frame (2).

8. The wobbly telescopic functional frame according to claim 7, characterized in that, It also includes a tension spring (6), one end of which is connected to the base (1), and the other end of which is connected to the extension frame (2). When the extension frame (2) is in a fully retracted state, the tension spring (6) is in a natural, unstretched state. As the extension frame (2) moves in the extension direction, the tension spring (6) will gradually stretch and exert a tension force in the opposite direction of the movement on the extension frame (2).

9. The wobbly telescopic functional frame according to claim 2, characterized in that, Both the first guide groove (101) and the second guide groove (102) are semi-enclosed groove structures opened towards the side of the extension functional frame (2).

10. A sofa, characterized in that, The wobbly telescopic frame described in any one of claims 1 to 9 is applied.

Images