Driving rod sinking type sofa broaching machine

Abstract

The utility model discloses a driving rod sinking type sofa broaching machine. The driving rod sinking type sofa broaching machine comprises a sofa frame, a stretching device is arranged on the sofa frame and comprises two symmetrical first connecting rods, one ends of the first connecting rods are pivoted with a backrest part of the sofa frame, the other ends of the first connecting rods are pivoted with a turning plate, the front side of the turning plate is pivoted with a second connecting rod, and the second connecting rod is connected with a sliding plate. The front side and the rear side of each sliding plate are provided with idler wheels sliding in the groove-shaped guide rails, a frame body used for installing a cushion is fixedly connected between the tops of the sliding plates on the two sides, a driving rod is arranged between the bottoms of the sliding plates on the two sides, and the distance between the top face of the driving rod and the bottom face of the frame body ranges from 90 mm to 110 mm. The seat cushion solves the problem that in the prior art, when the seat cushion deforms, the seat cushion is prone to colliding with the driving rod, and user experience is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of home furnishing manufacturing, in particular to a driving rod sinking type sofa pull bed. Background Art

[0002] The existing Chinese utility model patent with publication number CN217827330U and titled "A Sofa Pull-out Bed with Thin Backrest" discloses that a push rod motor drives a slider to slide on a guide rail, the top of the slider is fixedly connected to a driving rod, and both ends of the driving rod are fixedly connected to a slide plate. Combined with Figure 5 of the disclosed specification, the driving rod is actually fixedly connected to the stamped bending part in the middle of the slide plate, so that the distance between the driving rod and the seat cushion is small, and the impact force on the seat cushion is the greatest when the user sits down, the deformation of the seat cushion is the greatest, and the seat cushion is easy to collide with the driving rod, affecting the user's experience. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a sofa pull-out bed with a sinking drive rod, which can avoid collision between the seat cushion and the drive rod when the seat cushion is deformed, thereby improving the user experience.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the driving rod sinking sofa pull bed of the utility model is:

[0005] A sofa pull-out bed with a sinking driving rod comprises a sofa frame, on which a stretching device is arranged, the stretching device comprises two symmetrical first connecting rods, one end of the first connecting rod is pivotally connected to a backrest of the sofa frame, and the other end is pivotally connected to a flap, a second connecting rod is pivotally connected to the front side of the flap, the second connecting rod is connected to a slide plate, rollers sliding in a groove-shaped guide rail are arranged on the front and rear sides of the slide plate, a frame for installing a seat cushion is fixedly connected between the tops of the slide plates on both sides, a driving rod is arranged between the bottoms of the slide plates on both sides, and the distance between the top surface of the driving rod and the bottom surface of the frame is 90-110 mm.

[0006] Preferably, the driving rod and the slide plate are connected via a first right-angle bending piece.

[0007] Preferably, the front side of the bottom of the sofa frame is connected to a front support rod through a second right-angle bending piece, and the rear side of the bottom of the sofa frame is connected to a rear support rod through a third right-angle bending piece, and the top surfaces of the front and rear support rods are both lower than the top surface of the driving rod.

[0008] Preferably, the rear support rod is hinged with a push rod motor, and a slider of the push rod motor is fixed to the bottom surface of the driving rod.

[0009] Preferably, a thickened portion is provided on the bottom surface of the flap, and movable space for the first and second connecting rods is left on both sides of the thickened portion.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. Increase the distance between the drive rod and the seat cushion to leave enough space for the seat cushion to deform and avoid collision with the drive rod when the seat cushion deforms, thereby improving the user experience.

[0012] 2. A thickened portion is provided on the bottom surface of the flap, thereby increasing the thickness of the soft bag on the top surface of the flap to improve the comfort of the user when lying down. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the driving rod sinking type sofa pull bed of the utility model when it is unfolded;

[0014] Figure 2 It is a schematic diagram of the structure of the driving rod sinking type sofa pull bed of the utility model when it is retracted;

[0015] Figure 3 It is a structural schematic diagram of the stretching device of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the flap of the utility model.

[0017] Among them, 1 sofa frame, 11 first articulated seat, 12 groove guide rail, 13 second right-angle bending part, 14 front support rod, 15 third right-angle bending part, 16 rear support rod, 2 extension device, 21 first connecting rod, 22 flap, 221 second articulated seat, 222 third articulated seat, 223 thickening part, 23 second connecting rod, 24 slide plate, 241 roller, 25 driving rod, 26 first right-angle bending part, 3 frame, 31 seat cushion, 32 baffle, 321 walking wheel, 4 push rod motor. DETAILED DESCRIPTION

[0018] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0019] like Figure 1-4As shown, a driving rod sinking sofa pull-out bed comprises a sofa frame 1, on which a stretching device 2 is installed, the stretching device comprises two symmetrical first connecting rods 21, the rear end of the first connecting rod is pivotally connected to the backrest of the sofa frame through a first hinge seat 11, the front end of the first connecting rod is pivotally connected to a flap 22 through a second hinge seat 221, the front side of the flap is pivotally connected to a second connecting rod 23 through a third hinge seat 222, a thickened portion 223 is arranged on the bottom surface of the flap, and movable space for the first and second connecting rods is reserved on both sides of the thickened portion, on the basis of ensuring smooth movement of the flap, the storage space of the backrest of the sofa frame is fully utilized, the thickness of the soft bag on the top surface of the flap is increased, so as to improve the comfort of the user when lying down, the second connecting rod is connected to a slide plate 24, the front and rear sides of the bottom of the slide plate are installed with rollers 241 sliding in a grooved guide rail 12, the groove is installed on the inner wall of the sofa frame, and the two sides are provided with a plurality of rollers 241 sliding on the grooved guide rail 12. A frame 3 is fixedly connected between the top of the skateboard, a seat cushion 31 is installed on the top of the frame, a baffle 32 is installed on the front side of the frame, and walking wheels 321 are installed on both sides of the bottom of the baffle. A driving rod 25 is arranged between the bottom of the skateboard on both sides, and the driving rod and the skateboard are connected by a first right-angle bending piece 26. The distance between the top surface of the driving rod and the bottom surface of the frame is 95mm. The front side of the bottom of the sofa frame is connected to the front support rod 14 through the second right-angle bending piece 13, and the rear side of the bottom of the sofa frame is connected to the rear support rod 16 through the third right-angle bending piece 15. The front and rear support rods are used to improve the strength of the sofa frame. The top surfaces of the front and rear support rods are lower than the top surface of the driving rod, especially the front support rod also needs to leave enough space with the seat cushion to avoid collision with the seat cushion when it is deformed. The middle part of the rear support rod is hinged to the push rod motor 4, and the slider of the push rod motor is fixed to the bottom surface of the driving rod.

[0020] The specific working process and principle of the utility model are as follows: when the sitting position is adjusted to the sleeping position, the push rod motor is started, the driving rod pushes the slide plate outward, the roller rolls forward in the grooved guide rail, the frame is pushed out, the walking wheel rolls on the ground, and the slide plate drives the second connecting rod at the same time, the second connecting rod pulls out the flap hidden in the backrest of the sofa frame, the flap drives the first connecting rod to rotate until the flap is flush with the seat cushion, so that the sofa pull-out bed enters the sleeping position state. In this state, since the distance between the driving rod and the front support rod and the seat cushion is large, when the seat cushion undergoes a large elastic change, it will not collide with the driving rod and the front support rod, thereby improving the user experience. In addition, the soft bag on the top surface of the flap is increased, the softness of this part is improved, further improving the user experience.

Claims

1. A driving rod sinking sofa pull-out bed, comprising a sofa frame, a stretching device is arranged on the sofa frame, the stretching device comprises two symmetrical first connecting rods, one end of the first connecting rod is pivotally connected to the backrest of the sofa frame, the other end is pivotally connected to a flap, the front side of the flap is pivotally connected to a second connecting rod, the second connecting rod is connected to a slide plate, the front and rear sides of the slide plate are provided with rollers sliding in a groove-shaped guide rail, a frame for installing a seat cushion is fixedly connected between the tops of the slide plates on both sides, and a driving rod is arranged between the bottoms of the slide plates on both sides, characterized in that: The distance between the top surface of the driving rod and the bottom surface of the frame is 90-110 mm. The bottom surface of the flap is provided with a thickened portion, and movable space for the first and second connecting rods is left on both sides of the thickened portion.

2. The driving rod sinking type sofa pull bed according to claim 1, characterized in that: The driving rod is connected to the slide plate via a first right-angle bending piece.

3. The driving rod sinking type sofa pull bed according to claim 1, characterized in that: The front side of the bottom of the sofa frame is connected to a front support rod through a second right-angle bending piece, and the rear side of the bottom of the sofa frame is connected to a rear support rod through a third right-angle bending piece. The top surfaces of the front and rear support rods are both lower than the top surface of the driving rod.

4. The driving rod sinking type sofa pull bed according to claim 3, characterized in that: The rear support rod is hinged with a push rod motor, and a slider of the push rod motor is fixed to the bottom surface of the driving rod.

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