Electric and mechanical stretching device of movable sofa

Technical Field

This invention involves a kind of activity sofa electric mechanical stretching device, in particular to a shelf leg can be folded or unfolded, the backrest angle can be adjusted to a certain extent the multi-functional activities sofa electric mechanical stretching device.

Background Art

The prior movable sofa electric mechanical stretching device is provided with four major shortcomings: 1, on the market, a movable sofa electric driving structure is too complicated, the kinetic energy of the impact on the efficiency of the motor; 2, on the market, a movable sofa electric driving mode of the shaking phenomenon occurs, the comfort of the sofa effect; 3, on the market, a movable sofa electric driving mode the installation is complicated, the installation efficiency of the sofa effect; 4, on the market, a movable sofa electric driving mode motor head protruding electric connecting rod, leg completely folded interference phenomenon may occur when the, impact on the function of the sofa and stable structure. See Figure 5, of the prior art on the market a movable sofa electric driving mode electric device including the square tube 10, the electric angle iron 11, drive member 12, drive the fixed bracket 13, compared with the motor head fixed part (in the text of the two word used to distinguish this embodiment, the same below) 14, compared with the motor connecting rod 15, motor fixing member 16, motor end fixing member 17, contrast the motor movement of the slide block 18, compared with the motor 19, drive member rotating shaft 20, to rotate the connecting rod 21, compared with the electric connecting rod 9, the contrast motor 19 are respectively fixed on the front end and back end compared with the motor connecting rod 15, is compared with electric connecting rod 9, through the drive member 12, drive the fixed bracket 13, motor fixing member 16 of electric rotating connection piece a, compare with the motor 19 with the motor movement of the slide block 18 is converted into the linear motion of the electric square tube 10, the electric angle iron 11 the rotational motion of the on, so as to drive the is connected with the electric square tube 10 the rotary shaft of the driving member 20, to rotate the connecting rod 21 to rotate, so as to drive the mechanical stretching device movement. Because the rotating shaft transmission member 20, the rotating connecting rod 21 formed during the process of turning the iron frame self-locking phenomenon, the original electric driving means so as to lead to the problem of dithering. In this Patent application, on the basis of the above-mentioned prior art is improved.

Content of the invention

To be solved by the invention is to overcome the technical problems exist in the prior art of the above-mentioned deficiencies, by providing a simple structure, convenient operation, the new electric driving mode function activities sofa mechanical stretching device.

This invention solve the above technical problem the technical scheme is to the ground: a movable sofa electric mechanical stretching device, by mechanical stretching device, electric device, mechanical stretching device is provided with electric connecting rod, which is characterized in that the electric device is composed of an electric motor, a connecting pipe of the motor, the motor movement of the slide block, motor head fixing component, the motor of the motor by rail, the slide block is installed on the motor movement on the guide rail of the motor, through the 2nd electricity nose with the rotating shaft of the electric motor is fixed on the connecting rod on the head of the motor is connected with the turning of the fixed part, the connecting pipe of the motor the motor movement of the sliding block through 1st rotating shaft, the motor is fixed to the connecting pipe the mechanical stretching device.

The invention the motor connecting pipe is fixed to the mechanical stretching device and the linkage member.

The invention the shaft 1st, 2nd rotating shaft is a bolt.

The motor drive mode of the present invention is simple in structure, is beneficial for improving the efficiency of kinetic energy of the motor.

The invention the electric mechanical stretching device is simple in structure, is beneficial for improving the installation efficiency of the mechanical stretching device.

The invention solves the problem that the movable sofa on the market the phenomenon of electric driving mode shake, improves the comfort of the sofa.

The motor of this invention is convenient to install, realizes the motor on the motor movement of the slide block and the motor head through the pin connection, greatly improve the efficiency of the installation and maintenance of the motor.

The invention solves the problem that the market in the electric driving mode motor head proeminent the problem of electric connecting rod, can be avoided when the leg is completely folded interference phenomenon, enhancing the structural stability of the sofa the activities.

This invention has increased the electric function activities of the sofa, the sofa styles of development, improves the degree of automation and the comfort of the sofa, sofa improves the installation of the electric device, disassembly, maintenance and operation efficiency.

Description of drawings

Figure 1 is a schematic front view of the embodiment of the invention the leg part or the right side of the left side component is completely folded.

Figure 2 is a schematic front view of the embodiment of the invention parts or the right side of the left side component when the leg is completely unfolded.

Figure 3 is a schematic diagram of the back of this invention fully dumping.

Figure 4 is a schematic diagram of the example of the invention major components and mode of operation; Figure: 1-1st rotating shaft; 2-motor connecting pipe; 3-linkage member; 4-2nd rotating shaft;   5-the motor movement of the slide block; 6-motor ; 7-motor head fixed member; 8-electric connecting rod.

Figure 5 is a schematic diagram, diagram of the major components of the prior art composition and operating mode: 9-comparatives electric connecting rod; 10-electric square tube; 11-electric angle iron; 12-drive member; a fixed support-drive 13 ; 14-comparatives motor head fixed part; electric connecting rod-contrast 15 ; 16-motor fixing member; the tail part 17-of the motor; the motor movement of the slide block-contrast 18 ; 19-comparatives motor; driving member-rotating shaft 20 ; 21-the rotating connecting rod.

Mode of execution

The embodiment of combined with photos and the further description of the present invention.

This embodiment is a movable sofa electric mechanical stretching device including the prior art mechanical stretching device (having the same the left part, the right part, the left part and the right side component through the fixing part is fixedly connected with, for example, Patent number 200920200532.4 Patent document, discloses number 102657449A Patent public documents, Patent number 201220668439.8 Patent document), mechanical stretching device is provided with electric connecting rod 8, the structure is characterized in that the electric device is composed of an electric motor 6, the motor connecting pipe 2, the motor movement of the slide block 5, motor head fixing piece 7 integral, motor 6 of the motor by rail, through electricity nose 2nd rotary shaft 4 and is fixed on the electric connecting rod 8 on the motor head is fixed member 7 rotating connection, the connecting pipe of the motor 2 is fixed on the through bolts of the linkage piece mechanical stretching device 3 (the linkage member 3 of the length in the prior art mechanical stretching device in a fixed and drive connector, such as Patent number 200920200532.4 Patent document, joint moving parts , discloses number 102657449A Patent discloses the joint moving parts , Patent number 201220668439.8 Patent document, the seat frame support three, some documents may also be employed other that a driving connecting piece) is, with the motor moving the slide block 5 through the 1st rotary shaft 1 is rotatably connected to, the motor movement of the slide block 5 on the motor 6 to move on the guide rail.

The embodiment the motor movement of the slide block 5 along motor 6 guide rail movement, so that the motor 6 to the maximum extent the driving force of the this embodiment is carried out in the same direction, so as to save energy, reduce mechanical wear, enhance the integral structure.

The principle of this embodiment is the movement of the through the electric motor 6 on the motor movement of the slide block 5 forward on the guide rail of the motor (Figure 4 the left side of) motion, so as to drive the through the 1st rotary shaft 1 and the motor movement of the slide block 5 is rotatably connected with the connecting pipe of the motor 2, motor head through the 2nd rotary shaft 4 and is fixed on the electric connecting rod 8 on the motor head is fixed member 7 rotating connection, the connecting pipe of the motor 2 is fixed on the mechanical stretching device of the linkage member 3 is. Due to gravity and of the motor movement of the slide block 5 drive motor connecting pipe 2 acting force, mechanical stretching device first leg structure is expanded, to be completely out of the limit and contact surface contact, to prevent the leg mechanical structure, so as to drive the movable sofa electric mechanical stretching device fully dumping the backrest structure, the sofa electric mechanical stretching device to realize from the Figure 1 to the Figure 2 to the Figure 3 state process. On the contrary, the motor movement of the slide block 6 reverse (to the rear, Figure 4 the right) movement, a movable sofa electric mechanical stretching device from Figure 3 to Figure 2 to the Figure 1 the process of state. The sofa electric mechanical stretching device once again to return to the Figure 1 condition, that is, when the leg is completely folded state, the movable mechanical sofa extending device of a complete electric driving process.

The embodiment of the shaft 1st 1 and the 2nd rotary shaft 4 is rotatably connected by way of a latch type connection, realizes the motor 6 is connected with the bolt, the connecting pipe of the motor 2 is fixed on the through bolts of the linkage piece mechanical stretching device 3 the upper, convenient for the motor 6 mounting, disassembly and maintenance.

This embodiment cancels the rotation shaft driving member 20, to rotate the connecting rod 21 is connected with the rotation of the, solves the problem of jitter of the electric driving means.

The embodiment of the electric of the activities of the new driving mode of the sofa, cancels the original electric driving mode device, is favorable for improving the activities sofa electric driving device is installed, disassembly, maintenance and operation efficiency, improves the degree of automation and the comfort of the sofa.

All simple of this invention deformed or equivalent transform, shall be considered to fall into the scope of protection of this invention.