Seat framework and electric sofa using same

Abstract

The seat framework comprises a framework body and a folding and unfolding device, the folding and unfolding device comprises a bottom frame and an H-shaped support, the bottom frame is arranged at the bottom of the framework body, supporting legs are arranged at the bottom of the bottom frame, connecting rod mechanisms are arranged on the left side and the right side of the front end of the bottom frame respectively, and the H-shaped support is connected with the connecting rod mechanisms. First rollers are arranged below the connecting rod mechanisms, vertically-arranged rotating plates are arranged on the left side and the right side of the tail end of the bottom frame respectively, second rollers are arranged on the outer sides of the rotating plates, and the front ends of the two sides of the H-shaped support are movably connected with the connecting rod mechanisms on the left side and the right side respectively. The tail ends of the two sides of the H-shaped support are movably connected with the rotating plates on the left side and the right side respectively, an electric push rod is movably connected to a middle cross beam of the H-shaped support, and the end, away from the middle cross beam, of the electric push rod is movably connected to the tail end of the bottom frame. The novel folding and unfolding device of the seat framework is convenient to use and saves manpower.

Description

Technical Field

[0001] The invention relates to the technical field of seat accessories, and in particular to a seat frame and an electric sofa using the seat frame. Background Art

[0002] The seat frame is an important component of the seat. The seat frame of the prior art includes a frame body, a retractable device is provided at the bottom of the frame body, the retractable device includes a retracted state and a dropped state, and when in use, it is necessary to manually lift or step on the retractable device to switch between the retracted state and the dropped state; when the rollers of the retractable device rise and the supporting legs of the retractable device are supported on the ground, the retractable device is in the retracted state; when the rollers of the retractable device descend and are supported on the ground, and at the same time the supporting legs of the retractable device are away from the ground, the retractable device is in the dropped state; when the retractable device is in the dropped state, the user can easily push the bulky seat; since the retractable device is manually lifted or stepped on, it is more manpower-consuming to use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a seat frame and an electric sofa using the seat frame, wherein the retractable device of the seat frame is easy to use and saves manpower.

[0004] In order to solve the above technical problems, the present invention provides a seat frame, comprising a frame body and a retracting and releasing device, wherein the retracting and releasing device comprises a bottom frame and an H-shaped bracket, wherein the bottom frame is arranged at the bottom of the frame body, and a supporting leg is arranged at the bottom of the bottom frame, and a connecting rod mechanism is arranged on the left and right sides of the front end of the bottom frame, and a first roller is arranged below the connecting rod mechanism, and a vertically arranged rotating plate is arranged on the left and right sides of the rear end of the bottom frame, and a second roller is arranged at the lower end of the rotating plate, and the front ends of both sides of the H-shaped bracket are movably connected to the connecting rod mechanisms on the left and right sides, respectively, and the rear ends of both sides of the H-shaped bracket are movably connected to the rotating plates on the left and right sides, respectively, and an electric push rod is movably connected to the middle cross beam of the H-shaped bracket, and one end of the electric push rod away from the middle cross beam is movably connected to the rear end of the bottom frame; During operation, the electric push rod drives the connecting rod mechanism and the rotating plate simultaneously through the H-shaped bracket, and the connecting rod mechanism and the rotating plate respectively drive the first roller and the second roller to rise or fall simultaneously.

[0005] Further preferably, a first cross bar and a second cross bar are provided above the front end of the bottom frame at intervals, the connecting rod mechanism includes a first connecting rod, two ends of the first connecting rod are respectively movably connected with a second connecting rod and a third connecting rod, one end of the second connecting rod away from the first connecting rod is movably connected to the first cross bar, and one end of the third connecting rod away from the first connecting rod is movably connected to the second cross bar, and the first roller is arranged below the first connecting rod; when working, the electric push rod drives the connecting rod mechanism through the H-shaped bracket, the second connecting rod and the third connecting rod swing simultaneously, and the first connecting rod drives the first roller to lift or lower.

[0006] Further preferably, the left and right sides of the rear end of the bottom frame are respectively provided with upwardly extending supporting parts, a rotating shaft is horizontally passed through the supporting part, the rotating plate is arranged at the inner end of the rotating shaft, the second roller includes a roller bracket arranged at the outer end of the rotating shaft, a wheel is rotatably arranged on the roller bracket, and a horizontal axis located on the front side of the supporting part is provided between the rotating plate and the roller bracket; when working, the electric push rod drives the rotating plate to rotate through the H-shaped bracket, and the rotating plate drives the second roller to rise or fall.

[0007] Further preferably, the front top of the support portion is provided with an inclined groove, and the top of the roller bracket is provided with a stop shaft extending toward the support portion; During operation, the rotating plate drives the roller bracket to rotate. When the stop shaft abuts against the inclined groove, the rotating plate stops rotating. At this time, the first roller and the second roller both drop to the lowest position height.

[0008] An electric sofa comprises the seat frame.

[0009] The beneficial effects of the present invention are as follows: when working, the electric push rod drives the connecting rod mechanism and the rotating plate simultaneously through the H-shaped bracket, and the connecting rod mechanism and the rotating plate respectively drive the first roller and the second roller to rise or fall simultaneously; the retracting device includes a retracted state and a dropped state, when the first roller and the second roller rise at the same time and the supporting legs are supported on the ground, the retracting device is in the retracted state; when the first roller and the second roller fall at the same time and are supported on the ground, and the supporting legs are away from the ground, the retracting device is in the dropped state; the retracting device is driven by the electric push rod to switch between the retracted state and the dropped state, which is convenient to use and saves manpower; the retracting device of the new seat frame is convenient to use and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to clearly illustrate the innovative principle of the invention and its advantages over existing seat frames, possible embodiments are described below by means of non-limiting examples of the application of said principle with the aid of the accompanying drawings. In the drawings: Figure 1 A three-dimensional diagram of a seat frame of the present invention; Figure 2 is a three-dimensional diagram of the retractable device in a falling state; Figure 3 for Figure 2 Stereoscopic image of Figure 4 for Figure 2 The main view; Figure 5 for Figure 2 A top view of Figure 6 for Figure 2 A partial enlarged view of point A; Figure 7 for Figure 2 A partial enlarged view of point B; Figure 8 is a three-dimensional diagram of the retractable device in a retracted state; Fig. 9 for Figure 8 main view. Implementation

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0012] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0013] It should be noted that all directional indications in the present embodiment (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0014] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0015] like Figure 1-9A seat frame, comprising a frame body 1 and a retracting device, the retracting device comprising a bottom frame 2 and an H-shaped bracket 3, the bottom frame 2 is arranged at the bottom of the frame body 1, and the bottom of the bottom frame 2 is provided with 4 supporting legs 4 distributed in four corners, the left and right sides of the front end of the bottom frame 2 are respectively provided with a connecting rod mechanism 5, a first roller 6 is provided below the connecting rod mechanism 5, the left and right sides of the tail end of the bottom frame 2 are respectively provided with a vertically arranged rotating plate 7, and the lower end of the rotating plate 7 is provided with a second roller 8, the front ends of both sides of the H-shaped bracket 3 are respectively movably connected with the connecting rod mechanism 5 on the left and right sides, the tail ends of both sides of the H-shaped bracket 3 are respectively movably connected with the rotating plates 7 on the left and right sides, an electric push rod 10 is movably connected to the middle cross beam 9 of the H-shaped bracket 3, and one end of the electric push rod 10 away from the middle cross beam 9 is movably connected to the tail end of the bottom frame 2; During operation, the electric push rod 10 drives the connecting rod mechanism 5 and the rotating plate 7 simultaneously through the H-shaped bracket 3, and the connecting rod mechanism 5 and the rotating plate 7 respectively drive the first roller 6 and the second roller 8 to rise or fall simultaneously.

[0016] Preferably, a first cross bar 11 and a second cross bar 12 are provided above the front end of the bottom frame 2 at intervals, and the connecting rod mechanism 5 includes a first connecting rod 13, the cross section of the first connecting rod 13 is groove-shaped, the two ends of the front side wall of the first connecting rod 13 are respectively movably connected with a second connecting rod 14 in the form of a strip plate, the two ends of the rear side wall of the first connecting rod 13 are respectively movably connected with a third connecting rod 15 in the form of a strip plate, the end of the second connecting rod 14 away from the first connecting rod 13 is movably connected to the first cross bar 11, and the end of the third connecting rod 15 away from the first connecting rod 13 is movably connected to the second cross bar 12, and the first roller 6 is arranged below the first connecting rod 13; when working, the electric push rod 10 drives the connecting rod mechanism 5 through the H-shaped bracket 3, the second connecting rod 14 and the third connecting rod 15 swing simultaneously, and the first connecting rod 13 drives the first roller 6 to lift or lower.

[0017] Preferably, the left and right sides of the rear end of the bottom frame 2 are respectively provided with a supporting part 16 extending upward, the supporting part 16 includes two vertical plates arranged at intervals, and a rotating shaft 17 is horizontally penetrated on the two vertical plates of the supporting part 16, the rotating plate 7 is arranged at the inner end of the rotating shaft 17, and a roller bracket 18 is arranged at the outer end of the rotating shaft 17, the second roller 8 is rotatably arranged at the bottom of the roller bracket 18, and a horizontal axis 20 located on the front side of the supporting part 16 is provided between the rotating plate 7 and the roller bracket 18; when working, the electric push rod 10 drives the rotating plate 7 to rotate through the H-shaped bracket 3, and the rotating plate 7 drives the second roller 8 to rise or fall.

[0018] Preferably, the front top of the support portion 16 is provided with an inclined groove 21, and the top of the roller bracket 18 is provided with a stopper shaft 22 extending toward the support portion 16; During operation, the rotating plate 7 drives the roller bracket 18 to rotate. When the stop shaft 22 abuts against the inclined groove 21, the rotating plate 7 stops rotating. At this time, the first roller 6 and the second roller 7 both drop to the lowest position height.

[0019] When working, the electric push rod 10 drives the connecting rod mechanism 5 and the rotating plate 7 simultaneously through the H-shaped bracket 3, and the connecting rod mechanism 5 and the rotating plate 7 respectively drive the first roller 6 and the second roller 8 to rise or fall simultaneously; the retractable device includes a retracted state and a dropped state, such as Figure 8-9 , when the first roller 6 and the second roller 8 rise simultaneously and the supporting leg 4 is supported on the ground, the retractable device is in a retracted state; Figure 1-7 When the first roller 6 and the second roller 8 are simultaneously lowered and supported on the ground, and the supporting leg 4 is away from the ground, the retracting device is in a fallen state; the retracting device is driven by the electric push rod 10 to switch between the retracted state and the fallen state, which is easy to use and saves manpower; the retracting device of the seat frame of this embodiment is easy to use and saves manpower.

[0020] An electric sofa comprises the seat frame.

[0021] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A seat frame, comprising a frame body (1) and a retractable device, characterized in that: The retractable device comprises a bottom frame (2) and an H-shaped bracket (3), wherein the bottom frame (2) is arranged at the bottom of the skeleton body (1), and a supporting leg (4) is arranged at the bottom of the bottom frame (2). A connecting rod mechanism (5) is arranged on the left and right sides of the front end of the bottom frame (2), and a first roller (6) is arranged below the connecting rod mechanism (5). A vertically arranged rotating plate (7) is arranged on the left and right sides of the rear end of the bottom frame (2), and a second roller (8) is arranged at the lower end of the rotating plate (7). The front ends of both sides of the H-shaped bracket (3) are respectively connected to the connecting rod mechanisms (5) on the left and right sides. ) are movably connected, the tail ends of both sides of the H-shaped bracket (3) are movably connected to the left and right rotating plates (7) respectively, and an electric push rod (10) is movably connected to the middle cross beam (9) of the H-shaped bracket (3), and one end of the electric push rod (10) away from the middle cross beam (9) is movably connected to the tail end of the bottom frame (2); when working, the electric push rod (10) drives the connecting rod mechanism (5) and the rotating plate (7) through the H-shaped bracket (3) at the same time, and the connecting rod mechanism (5) and the rotating plate (7) respectively drive the first roller (6) and the second roller (8) to rise or fall at the same time.

2. The seat frame according to claim 1, characterized in that: A first cross bar (11) and a second cross bar (12) are provided above the front end of the bottom frame (2) and are spaced apart from each other. The link mechanism (5) comprises a first link (13), two ends of the first link (13) are movably connected to a second link (14) and a third link (15), one end of the second link (14) away from the first link (13) is movably connected to the first cross bar (11), and one end of the third link (15) away from the first link (13) is movably connected to the second cross bar (12). The first roller (6) is provided below the first link (13).

3. The seat frame according to claim 1, characterized in that: The left and right sides of the rear end of the bottom frame (2) are respectively provided with support parts (16) extending upwards, a rotating shaft (17) is horizontally passed through the support part (16), the rotating plate (7) is arranged at the inner end of the rotating shaft (17), a roller bracket (18) is arranged at the outer end of the rotating shaft (17), the second roller (8) is rotatably arranged at the bottom of the roller bracket (18), and a transverse shaft (20) located at the front side of the support part (16) is provided between the rotating plate (7) and the roller bracket (18).

4. The seat frame according to claim 3, characterized in that: The front top of the support portion (16) is provided with an inclined groove (21), and the top of the roller bracket (18) is provided with a stop shaft (22) extending towards the support portion (16); when in operation, the rotating plate (7) drives the roller bracket (18) to rotate, and when the stop shaft (22) abuts against the inclined groove (21), the rotating plate (7) stops rotating.

5. An electric sofa, characterized in that: The electric sofa comprises the seat frame according to any one of claims 1-4.

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