Sofa frame with adjustable seat depth

Abstract

The utility model belongs to the technical field of sofas, and particularly relates to a sofa frame with adjustable seat depth, which comprises a bottom frame, the two armrest parts are symmetrically arranged on the two sides of the bottom frame; the backrest part is positioned at the rear part of the bottom frame, and two ends are respectively connected with the corresponding armrest parts; the seat frame is arranged on the bottom frame in a sliding manner; wherein a plurality of zigzag springs are arranged between the seat frames, and the two ends of the zigzag springs are connected with the seat frames through plastic connecting pieces respectively; the forward moving distance of the seat frame ranges from 360 mm to 560 mm. According to the sofa frame with the adjustable seat depth, the seat frame is arranged to be slidable, the seat frame is used for installing the seat cushion, and when people with different heights use the sofa frame, the seat depth can be changed only by adjusting the seat frame to move back and forth, so that a comfortable position is achieved; and meanwhile, the connecting piece of the zigzag spring and the seat frame is a plastic product, so that the sound of friction between the zigzag spring and the connecting piece is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofas, and in particular relates to a sofa frame with adjustable seat depth. Background Art

[0002] The sofa is a kind of furniture and also a form of seat. Its main function is to provide people with a tool for rest.

[0003] According to relevant technology, a sofa includes a seat portion, a backrest portion and an armrest portion. The seat portion of a sofa is generally fixed, so the seat depth of the sofa is also fixed. When people who are too tall or too short use the sofa, their legs will appear to be curled up or in the air, affecting the user's feeling; at the same time, since the snake spring in the seat portion is snap-connected, when the snake spring is subjected to force, the snap-connection will often make a friction sound, affecting the user's feeling. Utility Model Content

[0004] In order to solve the technical problems mentioned in the background technology, the utility model provides a sofa frame with adjustable seat depth, which includes: a bottom frame; two armrests symmetrically arranged on both sides of the bottom frame; a backrest located at the rear of the bottom frame, and the two ends are respectively connected to the corresponding armrests; a seat frame, slidably arranged on the bottom frame; wherein a plurality of snake springs are arranged between the seat frames, and the two ends of the snake springs are respectively connected to the seat frames through plastic connecting parts; the forward movement distance of the seat frame ranges from 360mm to 560mm.

[0005] Furthermore, the seat frame is provided with a plurality of through holes, and the through holes are opened from the outer side of the seat frame to the inner side of the seat frame.

[0006] Furthermore, the plastic connector includes: a penetration portion and a limiting portion; the penetration portion is penetrated in the corresponding through hole; and the limiting portion abuts against the outer side of the seat frame.

[0007] Furthermore, a through hole is provided at the outer end of the extending portion; the extending portion is suitable for passing through the seat frame to expose the through hole; and the end of the snake spring is inserted into the through hole.

[0008] Furthermore, the cross-section of the through hole is rectangular, and the cross-section of the extending portion is adapted to the cross-section of the through hole; the cross-section of the limiting portion is circular and larger than the cross-section of the through hole.

[0009] Furthermore, the bottom frame includes: a first slide rail and a second slide rail; the first slide rail and the second slide rail are respectively arranged on the corresponding armrest parts; and pulley groups are respectively arranged on both sides of the seat frame, which are suitable for moving on the slide rails through the pulley groups.

[0010] Furthermore, two profile rods are connected between the first slide rail and the second slide rail; a driver is provided on one of the profile rods, and a linear slider is provided on the bottom frame; the driver is suitable for driving the linear slider to move on the track thereon so that the seat frame can adjust the seat depth.

[0011] Furthermore, a pair of supporting wheels is arranged at the front of the bottom frame; the two supporting wheels are respectively arranged at the front of the corresponding slide rails.

[0012] The beneficial effect of the utility model is that the sofa frame with adjustable seat depth sets the seat frame to be slidable, and the seat frame is used to install the seat cushion. When people of different heights use it, the seat depth can be changed by adjusting the seat frame to move forward and backward, so as to achieve a comfortable position; at the same time, the connecting piece between the snake spring and the seat frame is set to be a plastic product, thereby reducing the friction sound between the snake spring and the connecting piece.

[0013] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a structural schematic diagram of the sofa frame with adjustable seat depth when the seat depth is not adjusted;

[0017] Figure 2 This is a structural schematic diagram of the sofa frame with adjustable seat depth when adjusting the seat depth;

[0018] Figure 3 It is a structural diagram of the bottom frame;

[0019] Figure 4 It is a schematic diagram of the structure of the components below the seat frame;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of a sofa frame with adjustable seat depth;

[0021] Figure 6It is a top view structural diagram of a sofa frame with adjustable seat depth;

[0022] Figure 7 It is a structural diagram of a plastic connector.

[0023] In the figure:

[0024] Bottom frame 1, first slide rail 11, second slide rail 12, profile rod 13, support wheel 14;

[0025] Armrest 2;

[0026] Backrest 3;

[0027] Seat frame 4, perforation 41, pulley block 42;

[0028] Snake Spring 5;

[0029] Plastic connector 6, extension portion 61, through hole 611, limiting portion 62;

[0030] Driver 7;

[0031] Linear slide 8. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 , Figure 2 As shown, at least one embodiment provides a sofa frame with adjustable seat depth, which includes: a base frame 1; two armrests 2, symmetrically arranged on both sides of the base frame 1; a backrest 3, located at the rear of the base frame 1, and the two ends are respectively connected to the corresponding armrests 2; a seat frame 4, slidably arranged on the base frame 1; wherein a plurality of snake springs 5 ​​are arranged between the seat frames 4, and the two ends of the snake springs 5 ​​are respectively connected to the seat frame 4 through plastic connectors 6; the forward movement distance of the seat frame 4 ranges from 360mm to 560mm.

[0034] In some embodiments, the seat frame 4 is configured to be slidable, and a seat cushion is installed on the seat frame 4. When people of different heights use it, the seat depth can be changed by simply adjusting the seat frame 4 to move forward and backward, thereby achieving a comfortable position; at the same time, the connecting piece between the snake spring 5 and the seat frame 4 is configured to be a plastic product, thereby reducing the friction sound between the snake spring 5 and the connecting piece.

[0035] like Figure 3As shown, in some embodiments, the armrest portion 2 can be made of wood, and the two armrest portions 2 are placed vertically on the ground. In order to prevent the armrest portion 2 from tipping over, the two armrest portions 2 are connected by a bottom frame 1, so that the bottom frame 1 and the two armrest portions 2 form a stable overall frame, and then the backrest portion 3 is installed at the rear end of the armrest portion 2; wherein, the armrest portion 2 and the backrest portion 3 are conventional structures and are not improved.

[0036] Specifically, the bottom frame 1 includes: a first slide rail 11 and a second slide rail 12 . The first slide rail 11 and the second slide rail 12 are respectively arranged on the corresponding armrest portion 2 , and two profile rods 13 are connected between the first slide rail 11 and the second slide rail 12 .

[0037] like Figure 4 , Figure 5 As shown, in some embodiments, the seat frame 4 is slidably set on the base frame 1, that is, it slides on the slide rail of the base frame 1 to adjust the seat depth; specifically, pulley groups 42 are respectively provided on both sides of the seat frame 4, and the two pulley groups 42 are respectively slidably set in the first slide rail 11 and the second slide rail 12.

[0038] In some embodiments, a driver 7 is used as a power source to drive the seat frame 4 to move; specifically, one end of the driver 7 is set on one of the profile rods 13, and the linear slider 8 is set on the bottom frame 1. At the same time, a driving end of the driver 7 is connected to a screw rod, and the linear slider 8 is sleeved on the screw rod and meshed with it, that is, when the driver 7 drives the screw rod to rotate, the linear slider 8 will move along the axial direction of the screw rod, thereby driving the seat frame 4 to move.

[0039] like Figure 6 , Figure 7 As shown, in some embodiments, the seat frame 4 is a square frame, in which a plurality of snake springs 5 ​​need to be arranged to support the seat cushion. For ease of installation, the two ends of the snake spring 5 are not connected by hard connection methods such as welding, but a through hole is opened on the seat frame 4 so that the end of the snake spring 5 is inserted into the through hole to achieve snap connection. Specifically, a plurality of through holes 41 are respectively opened on opposite sides of the seat frame 4. The through holes 41 are opened from the outer side of the seat frame 4 to the inner side of the seat frame 4, and a connecting piece is arranged in the through hole 41 to connect the end of the snake spring 5. In order to reduce the sound generated by the friction between the snake spring 5 and the connecting piece, the present scheme adopts a plastic connecting piece 6. The plastic connecting piece 6 includes: a penetration portion 61 and a limiting portion 62. The penetration portion 61 is penetrated in the corresponding through hole 41 from the outer side of the seat frame 4 to the inner side of the seat frame 4, so that the limiting portion 62 is abutted against the outer side of the seat frame 4, and the through hole 611 at the outer end of the penetration portion 61 is exposed, so that the end of the snake spring 5 is penetrated in the through hole 611.

[0040] In some embodiments, the cross-section of the through hole 41 is rectangular, and the cross-section of the extending portion 61 matches the cross-section of the through hole 41 to prevent the plastic connector 6 from rotating; the cross-section of the limiting portion 62 is circular and larger than the cross-section of the through hole 41.

[0041] like Figure 2 As shown, in some embodiments, a pair of supporting wheels 14 are disposed at the front of the bottom frame 1 . The supporting wheels 14 are respectively disposed at the front of corresponding slide rails to support the empty space at the front of the bottom frame 1 .

[0042] To sum up, the sofa frame with adjustable seat depth sets the seat frame 4 to be slidable, and the seat frame 4 is used to install a cushion. When people of different heights use it, they only need to adjust the seat frame 4 to move forward and backward to change the seat depth, thereby achieving a comfortable position; at the same time, the connecting piece between the snake spring 5 and the seat frame 4 is set to a plastic product, thereby reducing the friction sound between the snake spring 5 and the connecting piece.

[0043] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0044] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A sofa frame with adjustable seat depth, characterized in that: include: Bottom frame (1); Two armrests (2) are symmetrically arranged on both sides of the bottom frame (1); A backrest portion (3) is located at the rear of the bottom frame (1), and its two ends are respectively connected to corresponding armrest portions (2); The seat frame (4) is slidably arranged on the bottom frame (1); wherein A plurality of snake springs (5) are arranged between the seat frames (4), and two ends of the snake springs (5) are respectively connected to the seat frames (4) via plastic connectors (6); The forward movement distance of the seat frame (4) ranges from 360 mm to 560 mm.

2. The sofa frame with adjustable seat depth as claimed in claim 1, characterized in that: The seat frame (4) is provided with a plurality of through holes (41); The through hole (41) is opened from the outer side of the seat frame (4) to the inner side of the seat frame (4).

3. The sofa frame with adjustable seat depth as claimed in claim 2, characterized in that: The plastic connecting piece (6) comprises: a penetration portion (61) and a limiting portion (62); The extending portion (61) is inserted into the corresponding through hole (41); The limiting portion (62) abuts against the outer side of the seat frame (4).

4. The sofa frame with adjustable seat depth as claimed in claim 3, characterized in that: A through hole (611) is provided at the outer end of the through-extension portion (61); The extending portion (61) is suitable for passing through the seat frame (4) so ​​as to expose the through hole (611); The end of the snake spring (5) is inserted into the through hole (611).

5. The sofa frame with adjustable seat depth as claimed in claim 4, characterized in that: The cross section of the through hole (41) is rectangular, and the cross section of the through-extension portion (61) is adapted to the cross section of the through hole (41); The cross-section of the limiting portion (62) is circular and larger than the cross-section of the through hole (41).

6. The sofa frame with adjustable seat depth as claimed in claim 5, characterized in that: The bottom frame (1) comprises: a first slide rail (11) and a second slide rail (12); The first slide rail (11) and the second slide rail (12) are respectively arranged on corresponding armrest portions (2); Pulley blocks (42) are respectively arranged on both sides of the seat frame (4), and are suitable for moving on the slide rail via the pulley blocks.

7. The sofa frame with adjustable seat depth as claimed in claim 6, characterized in that: Two profile rods (13) are connected between the first slide rail (11) and the second slide rail (12); A driver (7) is provided on one of the profile rods (13), and a linear slider (8) is provided on the bottom frame (1); The driver (7) is suitable for driving the linear slider (8) to move on the track thereon so that the seat frame (4) can adjust the seat depth.

8. The sofa frame with adjustable seat depth as claimed in claim 7, characterized in that: A pair of supporting wheels (14) is provided at the front of the bottom frame (1); The two support wheels (14) are respectively arranged at the front of the corresponding slide rails.

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