CN104720397B - Partition type couch - Google Patents

Abstract

A split type sofa chair, including a base, the front and middle parts of the longitudinal rods of the base are respectively hinged with a front swing rod and a rear swing rod. A linkage rod is connected between the seat plate mounting parts of the base; a backrest support rod is hinged at the rear of the base longitudinal rod, and the backrest mounting part is connected between the upper end of the back support rod and the rear end of the seat plate mounting part on the same side, and the linkage rod The backrest electric push rod is connected with the base cross bar. The front parts of the two seat plate mounting parts are hinged with non-circular rotating shafts. The two ends of the non-circular rotating shafts are provided with longitudinal sliding rods. The longitudinal sliding rods can be longitudinally telescopically set on In the chute on both sides of the footrest, the return spring is connected between the longitudinal slide bar and the chute; the middle part of the lower end surface of the footrest is formed with a footrest connection part, and one end of the footrest connection part is connected with the telescopic end of the footrest electric push rod , the footrest electric push rod is installed on the linkage rod. The backrest reclines and the feet are stretched forward in the invention, which is convenient to use and operate.

Description

Split sofa chair

technical field

The invention relates to a chair structure, in particular to a sofa chair.

Background technique

With the rapid development of economy and society, people have higher and higher requirements for the quality of life, and higher requirements for household daily necessities. The traditional electric sofa chair has only one motor, which is often linked. When the backrest is reclined, the legs will also be stretched forward. However, while bringing convenience, there are also a series of problems. The structure is complex and the chair is bulky as a whole. , It is very inconvenient to move, and the function is simple, etc. These issues deserve our extensive attention.

Contents of the invention

In order to overcome the shortcomings of existing electric chairs that the backrest and the foot rest mechanism cannot be transferred, and the use and operation are troublesome, the present invention provides a transfer type sofa chair with the backrest reclined and the foot rest extended forward, and is easy to use and operate.

The technical solution adopted by the present invention to solve its technical problems is:

A split type sofa chair, comprising a base, the base includes two base longitudinal bars arranged along the front and back direction of the seat and two base cross bars fixedly connected to the two ends of the base longitudinal bars, the base longitudinal bars The front part and the middle part are respectively hinged with a front swing lever and a rear swing lever, and the upper ends of the front swing lever and the rear swing lever on each side are hinged with a seat plate mounting piece for mounting the seat plate, and the seat plate mounting pieces on both sides are connected with linkage rod; the rear part of the base longitudinal rod is hinged with a backrest support rod, and a backrest installation part for installing a backrest is connected between the upper end of the backrest support rod and the rear end of the seat plate installation part on the same side. The backrest mounting part is hinged with the backrest support rod and the seat board mounting part; a backrest electric push rod for adjusting the position of the backrest is connected between the linkage rod and the base cross bar at the rear of the seat; the two seat boards are installed The front part of the piece is hinged with a non-circular rotating shaft, and the two ends of the non-circular rotating shaft are provided with longitudinal sliding rods, and the longitudinal sliding rods can be longitudinally telescopically sleeved in the slide grooves on both sides of the footrest. A return spring is connected between the longitudinal slide bar and the chute to keep the longitudinal slide bar fully positioned in the chute; the middle part of the lower end surface of the footrest is formed with a footrest connection part, and the footrest connection part One end is connected with the telescoping end of the foot rest electric push rod, and the foot rest electric push rod is installed on the linkage rod.

Further, one end of the connecting part of the footrest is provided with a round hole and is connected with the electric push rod of the footrest through the round hole.

Still further, the electric push rod for the backrest and the electric push rod for the foot rest are on the same transverse plane.

The end of the longitudinal slide bar is provided with a protrusion, and the front end of the slide groove is provided with a limit block for limiting the movement stroke of the protrusion. The limit block is used to limit the maximum stroke of the entire footrest.

The beneficial effects of the present invention are mainly manifested in: 1. The backrest mounting part and the footrest mechanism respectively control their reclining and forward extension through a motor push rod, and realize the reclining of the backrest and the lifting and forward extension of the footrest. Effect; 2. When the backrest is reclined, the seat board drives the chair back to move forward. When the chair is placed against the wall, the backrest can be reclined; 3. The two electric push rods can be adjusted arbitrarily within a certain range , to meet the rest needs of different consumers to the greatest extent; 4. The chairs described above all adopt linkage mechanisms, which are simple in structure, easy to manufacture, and low in cost.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the split sofa chair with the backrest tilted forward and the feet rested.

Fig. 2 is a schematic diagram of the structure of the split sofa chair with the backrest reclined and the feet resting forward.

Fig. 3 is a structural schematic diagram of the footrest.

Fig. 4 is a schematic diagram of the structure of the longitudinal slide bar.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Figures 1 to 4, a split sofa chair includes a base 11. The base 11 includes two base longitudinal bars arranged along the front and rear directions of the seat and two bases fixedly connected to the two ends of the two base longitudinal bars. The front and middle parts of the longitudinal rod of the base are respectively hinged with a front swing rod 31 and a rear swing rod 32, and the upper ends of the front swing rod 31 and the rear swing rod 32 on each side are hinged with a seat plate for mounting the seat plate. 33, and the linkage rod 22 is connected between the seat board mounting parts 33 on both sides; 33 rear ends are connected with a backrest mounting part 34 for installing the backrest, and the backrest mounting part 34 is hinged with the backrest support rod 21 and the seat board mounting part 33; A backrest electric push rod 51 for adjusting the position of the backrest is connected between the base cross bars 12; a non-circular rotating shaft 43 is hinged at the front of the two seat plate mounting parts, and the two ends of the non-circular rotating shaft 43 are provided with Longitudinal slide bar 44, described longitudinal slide bar 44 is sleeved telescopically in the chute on both sides of described footrest 41, and the connection between described longitudinal slide bar and described chute is in order to keep all longitudinal slide bar on slide The return spring 46 of the state in the groove; the middle part of the lower end surface of the footrest 41 is formed with a footrest connecting portion 42, and one end of the footrest connecting portion 42 is connected with the telescoping end of the footrest electric push rod 52, and the footrest is electrically powered. The push rod 52 is installed on the linkage rod 22 .

Further, one end of the footrest connecting portion 42 is provided with a round hole and is connected to the footrest electric push rod 52 through the round hole.

Still further, the electric push rod 51 for the backrest and the electric push rod 52 for the foot rest are on the same transverse plane.

The end of the longitudinal slide bar 44 is provided with a protruding block 45, and the front end of the sliding groove is provided with a limit block for limiting the moving stroke of the protruding block. The limit block is used to limit the maximum stroke of the entire footrest.

The cross section of the longitudinal sliding bar 44 in this embodiment can be square or circular.

When the present invention was in the initial state, because the motor did not move, the footrest 41 and the backrest were checked and balanced, the footrest 41 would not stretch out, and the backrest would not fall down.

When the backrest needs to be reclined, the user presses the control switch to make the electric push rod 51 of the backrest start to stretch, and drives the first linkage rod to start moving, thereby driving the rear swing rod 32 to rotate counterclockwise, and driving the backrest to realize reclining; at the same time Seat board mounting part 33 moves forward, and when driving backrest 22 to move forward, due to the effect of backrest support rod 21, backrest can be made to reach the maximum reclining angle without leaning against the wall. When returning, press the retractable button of the electric push rod, and the electric push rod 51 of the backrest starts to shrink, drives the first linkage rod to start moving, and rotates clockwise through the rear swing rod 32, and pulls the backrest to return to the original state.

When the footrest 41 needs to be stretched forward, the user presses the control switch to make the footrest electric push rod 52 begin to extend, so that the footrest 41 turns from a vertical state to a horizontal state, and the footrest electric push rod 52 continues to extend. Reach the maximum forward extension length; when returning, press the retractable button of the electric push rod, the electric push rod 52 of the footrest starts to shrink, and under the action of the return spring, the longitudinal slide bar is all located in the chute, continues to shrink, and pulls the footrest 41 to return from the horizontal state The vertical state is the initial state.

Claims (1)

1. A split type sofa chair, comprising a base and a footrest, the base includes two base longitudinal bars arranged along the front and rear directions of the seat and two base cross bars fixedly connected to the two ends of the two base longitudinal bars, and It is characterized in that: the front and middle parts of the longitudinal rod of the base are respectively hinged with a front swing rod and a rear swing rod, and the upper ends of the front swing rod and the rear swing rod on each side are hinged with seat plate mounting parts for mounting the seat plate. A linkage rod is connected between the seat plate mounting parts; a back support rod is hinged at the rear of the base longitudinal rod, and a link is connected between the upper end of the back support rod and the rear end of the seat plate mounting part on the same side. The backrest installation part of the backrest is installed, and the backrest installation part is hinged with the backrest support rod and the seat board installation part; an electric backrest pusher for adjusting the position of the backrest is connected between the linkage rod and the base cross bar at the rear of the seat. Rod; the front parts of the two seat plate mounting parts are hinged with a non-circular rotating shaft, and the two ends of the non-circular rotating shaft are provided with longitudinal sliding rods, and the longitudinal sliding rods can be telescopically sleeved on the footrest In the chute on both sides, the return spring used to keep the longitudinal slide bar all in the state of the chute is connected between the longitudinal slide bar and the chute; the middle part of the lower end surface of the footrest is formed with a footrest connection One end of the connecting part of the footrest is connected to the telescopic end of the electric footrest push rod, and the electric push rod for the footrest is installed on the linkage rod; one end of the connecting part of the footrest is provided with a round hole and passes through the round hole It is connected with the footrest electric push rod; the backrest electric push rod and the footrest electric push rod are on the same horizontal plane; the end of the longitudinal slide bar is provided with a bump, and the front end of the chute is provided with a A limit block that limits the travel of the bump.