CN219645396U - Hidden pedal device of sofa - Google Patents

Abstract

The utility model relates to the field of furniture, in particular to a sofa hidden pedal device, which can store a pedal at the bottom of a sofa main body for hiding, and comprises: the moving mechanism is fixed at the bottom of the sofa main body and can drive the pedal to move and enable the pedal to move out or retract into the bottom of the sofa main body; the rotating mechanism is arranged between the pedal and the moving mechanism and comprises a mounting frame and a connecting rod, the mounting frame is slidably connected with the moving mechanism, one end of the connecting rod is hinged with the mounting frame, and the other end of the connecting rod is hinged with the pedal; the support mechanism is hinged between the mounting frame and the foot pedal, can apply lifting acting force to the foot pedal, can store the foot pedal at the bottom of the sofa main body when not used, and reduces the whole occupied space of the sofa.

Description

Hidden pedal device of sofa

Technical Field

The utility model relates to the field of furniture, in particular to a hidden pedal device of a sofa.

Background

The sofa is common furniture, people can sit on the sofa for rest, when sitting on the sofa generally, the feet still need to be supported on the ground, so that the feet cannot be rested, the existing sofa can be provided with foot pedals for placing the rest, but the common sofa is large in size, the occupied space is larger after the foot pedals are arranged again, the use is inconvenient, and the space resources are wasted.

Disclosure of Invention

The utility model provides a hidden pedal device for a sofa, which aims to solve the problem that the sofa occupies a large space after the pedal is arranged.

The utility model provides a hidden pedal device of a sofa, which adopts the following technical scheme:

the utility model provides a hidden pedal device of sofa can accomodate the running-board and hide to sofa main part bottom, includes: the moving mechanism is fixed at the bottom of the sofa main body and can drive the pedal to move and enable the pedal to move out or retract into the bottom of the sofa main body; the rotating mechanism is arranged between the pedal and the moving mechanism and comprises a mounting frame and a connecting rod, the mounting frame is slidably connected with the moving mechanism, one end of the connecting rod is hinged with the mounting frame, and the other end of the connecting rod is hinged with the pedal; the supporting mechanism is connected between the mounting frame and the pedal plate and is hinged with the mounting frame and the pedal plate, and lifting acting force can be applied to the pedal plate.

Through adopting above-mentioned technical scheme, remove the mounting bracket through moving mechanism when using to shift out the running-board from sofa main part bottom through the connecting rod, can retrieve sofa main part bottom with the running-board and accomodate when not using, reduce occupation space, shift out the back from sofa main part bottom at the running-board, apply the lifting effort to the running-board through supporting mechanism, make running-board, connecting rod rotate around the pin joint of connecting rod and mounting bracket, and make the running-board upwards lift, the user of being convenient for rest of taking a rest.

Further preferably, the supporting mechanism comprises a cylinder and a piston rod which is connected with the cylinder in a sliding manner, the cylinder is hinged with the mounting frame, one end of the piston rod, far away from the cylinder, is hinged with the pedal, the air pressure in the cylinder is always greater than the air pressure outside the cylinder, and when the pedal is in a storage state, the cylinder and the piston rod are in a horizontal state.

Through adopting above-mentioned technical scheme, cylinder and mounting bracket are articulated and piston rod and running-board are articulated, avoid the running-board at the lifting in-process, and cylinder, piston rod take place the card and die, and the atmospheric pressure in the cylinder is greater than the outer cylinder of cylinder all the time to make piston rod and articulated running-board on the piston rod have the trend of keeping away from cylinder one side and removing all the time, cooperation cylinder can use manpower sparingly to the effort of piston rod when artifical lifting running-board.

Further preferably, the mounting frame is fixedly provided with a limiting part, the connecting rod is provided with a bayonet which can be clamped with the limiting part, and the limiting part is used for limiting the rotation range of the connecting rod.

Through adopting above-mentioned technical scheme, set up the rotation scope of locating part restriction connecting rod to the lifting scope of restriction running-board prevents that connecting rod rotation angle from being too big and collision such as sofa main part.

Further preferably, a bidirectional torsion spring is connected between the connecting rod and the mounting frame, the pretightening force direction of the bidirectional torsion spring is switched in the rotation process of the connecting rod, and the pretightening force of the bidirectional torsion spring can provide a certain rotation acting force for the connecting rod.

Through adopting above-mentioned technical scheme, two-way torsional spring can provide certain rotatory effort for the connecting rod, cooperation supporting mechanism can carry out the lifting to the running-board, further use manpower sparingly, and the pretightning force direction of two-way torsional spring can take place to switch in the connecting rod rotation in-process, two-way torsional spring is after pretightning force direction switches, apply the effort of reversal to the connecting rod promptly, exert the effort that descends to the running-board promptly, because the running-board still is in the lifting process under supporting mechanism effect, therefore two-way torsional spring plays the cushioning effect to the lifting of running-board after switching pretightning force direction, until the locating part card goes into the bayonet socket on the connecting rod, avoid locating part and connecting rod to take place violent collision and cause the damage.

It is further preferable that the connecting rod comprises a first rod piece and a second rod piece, the first rod piece is hinged with the mounting frame through a first rotating shaft, the first rod piece is hinged with the pedal plate through a second rotating shaft, the second rod piece is hinged with the mounting frame through a third rotating shaft, the second rod piece is hinged with the pedal plate through a fourth rotating shaft, the four rotating shafts are arranged in parallel, and a vertical connecting line between the first rotating shaft and the second rotating shaft is parallel and equal to a vertical connecting line between the third rotating shaft and the fourth rotating shaft.

Through adopting above-mentioned technical scheme, form parallelogram through two connecting rods and four pivots, make the running-board can not take place rotatoryly at the lifting in-process, stability when improving the lifting to can make the running-board be used for the face lifting in-process of bracket keep the level, the user of being convenient for is placed in the foot.

It is further preferable that a nut is connected between the rod and the rotating shaft, and the nut is used for adjusting the friction force between the rod and the rotating shaft.

Through adopting above-mentioned technical scheme, set up the frictional force between member and the pivot can be adjusted to the nut, improves the stability when the member is rotatory.

Further preferably, the moving mechanism comprises a frame and an optical axis, the frame is fixed at the bottom of the sofa main body, the optical axis is fixed on the frame, the mounting frame is slidably connected to the optical axis, and the two axial ends of the optical axis are fixedly connected with limiting frames.

Through adopting above-mentioned technical scheme, adopt optical axis and mounting bracket sliding connection, the manual work can smoothly stimulate the mounting bracket along the optical axis removal, and spacing frame is connected at the optical axis both ends to restrict the travel distance of mounting bracket, and can avoid mounting bracket and optical axis to break away from.

It is further preferable that the frame or the limiting frame is fixedly provided with a crash bar.

Through adopting above-mentioned technical scheme, the anticollision strip can avoid connecting rod rotation in-process direct with frame or spacing frame collision.

Further preferably, the frame is provided with a plug in a sliding manner, the mounting frame is provided with a jack for plugging the plug in, and the plug in is used for limiting the mounting frame to move along the optical axis and locking the position of the mounting frame.

Through adopting above-mentioned technical scheme, peg graft the jack through the bolt and carry out the position locking to the mounting bracket, prevent that the mounting bracket from sliding along the optical axis to prevent that the running-board from removing along the optical axis in the use, stability when improving the use.

It is further preferable that the top surface of the footrest is inclined, and the top surface of the footrest is inclined downward toward the sofa body side when the footrest is in the unfolded state.

Through adopting above-mentioned technical scheme, the top surface slope of running-board sets up, makes the user's foot also be in the tilt state when stepping on the running-board, when needs move down the running-board, the running-board top surface of slope setting also is convenient for the user application of force, and when the running-board is in the state of expanding in addition, the top surface of running-board inclines towards sofa main part one side, and the user can perpendicular running-board top surface downward to the effort that the user applyed the running-board to the connecting rod and piston rod, cylinder anticlockwise rotation to avoid connecting rod, piston rod and cylinder card to die unable rotation.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. according to the utility model, when not in use, the pedal can be stored at the bottom of the sofa main body, so that the occupied space of the whole sofa is reduced;

2. in the utility model, the supporting mechanism applies lifting force to the pedal plate and applies torsion force to the rotating shaft in cooperation with the torsion spring, so that labor can be saved when the pedal plate is manually lifted;

3. in the utility model, the parallelogram is formed by the two connecting rods and the four rotating shafts, so that the pedal plate cannot rotate in the lifting process, and the surface of the pedal plate for the foot rest can be kept horizontal;

4. in the utility model, the bolt is arranged in the moving mechanism and can be spliced with the mounting frame and limit the mounting frame to slide along the optical axis, so that the pedal is prevented from moving along the moving mechanism in the using process, and the stability is improved.

Drawings

FIG. 1 is a schematic view of an initial state of a hidden footrest apparatus for a sofa;

FIG. 2 is a schematic view of the hidden footrest apparatus in the sofa during deployment;

FIG. 3 is a schematic view of the sofa hidden pedal device in a fully extended state;

FIG. 4 is a schematic elevational view of the hidden sand-driven foot pedal apparatus of FIG. 1;

FIG. 5 is a schematic elevational view of the hidden sand-driven foot pedal apparatus of FIG. 2;

FIG. 6 is a schematic elevational view of the hidden sand-driven foot pedal apparatus of FIG. 3;

FIG. 7 is an enlarged schematic view of A in FIG. 3;

FIG. 8 is a schematic perspective view of FIG. 4;

FIG. 9 is an enlarged schematic view of B in FIG. 7;

fig. 10 is an enlarged schematic view of C in fig. 7.

Reference numerals illustrate: 1. a sofa main body; 2. a moving mechanism; 21. a frame; 22. an optical axis; 23. a limit frame; 24. a bumper strip; 25. a handle; 26. a plug pin; 3. a rotating mechanism; 30. a mounting frame; 301. a limiting piece; 302. a jack; 31. a first rod member; 32. a second rod member; 33. a first rotating shaft; 34. a second rotating shaft; 35. a third rotating shaft; 36. a fourth rotating shaft; 37. a bayonet; 38. a bidirectional torsion spring; 4. a foot pedal; 5. a support mechanism; 51. a cylinder; 52. a piston rod; 6. and (5) connecting a block.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1 to 10.

The embodiment of the utility model discloses a hidden pedal device for a sofa, which is shown in the accompanying drawings 1, 2 and 3, wherein when a user sits on the sofa and does not need to rest with a foot rest, a pedal plate 4 is stored at the bottom of a sofa main body 1 for hiding, so that the whole occupied space of the sofa is reduced; when a user sits on the sofa and needs to rest on the foot, the foot pedal 4 is moved out of the bottom of the sofa main body 1 for resting on the foot. Specifically, the present utility model provides the following examples;

example 1

The device comprises a moving mechanism 2, a rotating mechanism 3 and a supporting mechanism 5, wherein the moving mechanism 2 is fixed at the bottom of a sofa main body 1 and can drive a pedal plate 4 to move and move the pedal plate 4 out of or retract the bottom of the sofa main body 1; the rotating mechanism 3 is arranged between the pedal plate 4 and the moving mechanism 2, and as shown in fig. 4, 5 and 6, the rotating mechanism 3 comprises a mounting frame 30 and a connecting rod, the mounting frame 30 is slidably connected with the moving mechanism 2, one end of the connecting rod is hinged with the mounting frame 30, and the other end of the connecting rod is hinged with the pedal plate 4; the supporting mechanism 5 is connected between the mounting frame 30 and the pedal plate 4, and the supporting mechanism 5 is hinged with the mounting frame 30 and the pedal plate 4, and the supporting mechanism 5 can apply lifting acting force to the pedal plate 4.

In this embodiment, through manual driving, make the mounting bracket 30 remove along moving mechanism 2 and remove from sofa main part 1 bottom, thereby also remove connecting rod and running-board 4 from sofa main part 1 bottom, because running-board 4, connecting rod and mounting bracket 30 connect gradually, the force application position of manual pulling can be on running-board 4 or connecting rod or the mounting bracket 30, generally come along moving mechanism 2 synchronous movement through manual pulling running-board 4 with running-board 4, connecting rod and mounting bracket 30, after running-board 4 is removed from sofa main part 1 bottom, running-board 4 is lifted under the effect of supporting mechanism 5, running-board 4 and connecting rod can rotate around the articulated position of connecting rod and mounting bracket 30 in the lifting process, make running-board 4 can be close to sofa main part 1 while lifting, be convenient for user's bracket, easy operation convenient to use, in other embodiments, moving mechanism 2 also can embed electric drive, realize the automatic movement of mounting bracket 30.

Example two

The support mechanism 5 comprises a cylinder 51 and a piston rod 52, wherein the piston rod 52 is in sliding connection with the cylinder 51, and the air pressure in the cylinder 51 is always greater than the air pressure outside the cylinder 51 in the moving process of the piston rod 52, so that the piston rod 52 always has a tendency to slide to the side far away from the cylinder 51 under the action of the air pressure, and in addition, the cylinder 51 and the piston rod 52 are in a horizontal state when the pedal 4 is in the storage state in order to keep the stability of the pedal 4 in the storage state.

The cylinder 51 is hinged with the mounting frame 30, one end, far away from the cylinder 51, of the piston rod 52 is hinged with the pedal plate 4, and the supporting mechanism 5 is connected with the pedal plate 4 and the mounting frame 30 in a hinged mode, so that the pedal plate 4 is prevented from being blocked with the pedal plate 4 and the mounting frame 30 in the lifting process. In addition, in order to avoid interference between the supporting mechanism 5 and the connecting rod, the hinge position of the cylinder 51 and the mounting frame 30 is at the edge of the mounting frame 30; the connecting block 6 is fixedly arranged at the bottom of the pedal plate 4, the connecting block 6 is hinged with the connecting rod and the piston rod 52, the connecting block 6 can be fixed with the pedal plate 4 through fasteners such as bolts and the like, the connecting block 6 is convenient to detach, and in other embodiments, the connecting block 6 and the pedal plate 4 can be produced in an integrated manner.

Example III

For the connecting rod, the connecting rod comprises a first rod piece 31 and a second rod piece 32, wherein the first rod piece 31 is hinged with the mounting frame 30 through a first rotating shaft 33, the first rod piece 31 is hinged with the pedal plate 4 through a second rotating shaft 34, the second rod piece 32 is hinged with the mounting frame 30 through a third rotating shaft 35, the second rod piece 32 is hinged with the pedal plate 4 through a fourth rotating shaft 36, the four rotating shafts are arranged in parallel, and a vertical connecting line between the first rotating shaft 33 and the second rotating shaft 34 is parallel and equal to a vertical connecting line between the third rotating shaft 35 and the fourth rotating shaft 36.

Specifically, the connecting lines of the four hinge positions of the two rod pieces and the four rotating shafts form a parallelogram, so that the connecting block 6 cannot rotate in the rotating process of the two rod pieces, the pedal plate 4 mounted on the connecting block 6 cannot rotate, the upper end face (namely the face for a foot rest) of the pedal plate 4 is in a horizontal state as much as possible in the actual mounting process, and therefore the upper end face of the pedal plate 4 is always in the horizontal state in the lifting process of the pedal plate 4, the rotation of the pedal plate 4 is avoided, and the stability is improved.

The rod piece is connected with the rotating shaft through the nut, the nut is used for adjusting the friction force between the rod piece and the rotating shaft, and under the condition that the rod piece and the rotating shaft rotate smoothly, the loosening and falling of the rod piece and the rotating shaft can be reduced, and the safety is improved.

Example IV

As shown in fig. 7, a limiting member 301 is fixedly arranged on the mounting frame 30, a bayonet 37 capable of being clamped with the limiting member 301 is arranged on the connecting rod, and the limiting member 301 is used for limiting the rotation range of the connecting rod. Specifically, based on the third embodiment, the bayonet 37 is formed at the upper and lower ends of the first rod 31, and the limiting members 301 are disposed at the upper and lower sides of the first rod 31, and are set according to the rotation range requirement of the rod and the track of the bayonet 37 along with the rotation of the rod.

The upper stopper 301 is used to limit the counterclockwise rotation range of the first pin 31, and the lower stopper 301 is used to limit the clockwise rotation range of the first pin 31. Specifically, when the upper limiting member 301 is clamped to the upper bayonet 37, the first rod member 31 is in a horizontal state, and the foot rest 4 is at the lowest position, and when the lower limiting member 301 is clamped to the lower bayonet 37, the included angle between the first rod member 31 and the horizontal direction is 50 ° to 60 °, wherein the included angle in this embodiment is 50 °, and the foot rest 4 is lifted to the highest position.

In other embodiments, a bayonet 37 may be formed on the second rod 32, and a corresponding limiting member 301 is disposed on the mounting frame 30 to limit the rotation range of the second rod 32 so as to limit the lifting range of the foot rest 4;

or two bayonets 37 are formed on the first rod piece 31 and the second rod piece 32, four limiting pieces 301 are fixedly arranged on the mounting frame 30, wherein the two limiting pieces 301 limit the first rod piece 31, the other two limiting pieces 301 limit the second rod piece 32, and the limiting pieces 301 limit the rotation range of the first rod piece 31 and the second rod piece 32 to be the same;

or a bayonet 37 is formed on the first rod piece 31 and the second rod piece 32, the bayonet 37 is formed at the upper end of the first rod piece 31, the bayonet 37 is formed at the lower end of the second rod piece 32, two limiting pieces 301 are fixedly arranged on the mounting frame 30, one limiting piece 301 is used for limiting the first rod piece 31 to rotate anticlockwise, namely limiting the lowest position of the pedal 4, and the other limiting piece is used for limiting the second rod piece 32 to rotate clockwise, namely limiting the highest position of the pedal 4;

or, a bayonet 37 is formed on the first rod 31 and the second rod 32, a bayonet 37 is formed at the lower end of the first rod 31, a bayonet 37 is formed at the upper end of the second rod 32, two limiting members 301 are fixedly arranged on the mounting frame 30, one limiting member 301 limits the first rod 31 and is used for limiting the first rod 31 to rotate clockwise, namely limiting the highest position of the pedal 4, and the other limiting member limits the second rod 32 and is used for limiting the second rod 32 to rotate anticlockwise, namely limiting the lowest position of the pedal 4.

Example five

A torsion spring is connected between the connecting rod and the mounting frame 30, the pretightening force of the torsion spring can provide a certain rotation acting force for the connecting rod, the torsion spring is a bidirectional torsion spring 38, and the pretightening force direction of the bidirectional torsion spring 38 is switched in the rotation process of the connecting rod. Specifically, when the connecting rod is in a horizontal state, the bidirectional torsion spring 38 has a pretightening force for driving the connecting rod to rotate clockwise, and can be matched with the supporting mechanism 5 to lift the pedal plate 4, in the rotating process of the connecting rod, the pretightening force direction of the bidirectional torsion spring 38 can be switched, namely, the bidirectional torsion spring 38 has a pretightening force for driving the connecting rod to rotate anticlockwise, and the connecting rod continues to rotate clockwise under the action of the supporting mechanism 5, so that the acting force of the bidirectional torsion spring 38 plays a buffering role on the connecting rod, and when the limiting piece 301 is clamped into the bayonet 37, the limiting piece 301 can be prevented from being in severe collision with the connecting rod; when the connecting rod rotates anticlockwise for resetting, the bidirectional torsion spring 38 firstly assists the connecting rod to rotate anticlockwise, and then buffers the connecting rod.

Example six

As shown in fig. 8, 9 and 10, the moving mechanism 2 comprises a frame 21 and an optical axis 22, wherein the frame 21 is fixed at the bottom of the sofa main body 1, the optical axis 22 is fixed on the frame 21, the mounting frame 30 is slidably connected with the optical axis 22, and two axial ends of the optical axis 22 are fixedly connected with limiting frames 23. In this embodiment, the frame 21 includes four square pipes, and four square pipes are connected end to form the frame 21 of rectangle, and the frame 21 passes through fastener such as bolt to be fixed in sofa bottom, convenient to detach.

The optical axis 22 is provided with two, and two optical axes 22 are parallel and extend the setting along left and right directions, and optical axis 22 passes through welded mode to be fixed on frame 21 and be located the rectangle inside, and mounting bracket 30 and two equal sliding connection of optical axis 22 can connect the bush between mounting bracket 30 and the optical axis 22, and mounting bracket 30 and bush then pass through welded fastening, and the setting of optical axis 22 leads the removal of mounting bracket 30 to reduce the resistance that mounting bracket 30 removed, make mounting bracket 30 remove smoothly, limiting frame 23 then can inject the movable range of mounting bracket 30, and can prevent that mounting bracket 30 and optical axis 22 break away from.

The anti-collision strip 24 is fixedly arranged on the frame 21 or the limiting frame 23, so that the connecting rod can be prevented from directly colliding with the frame 21 or the limiting frame 23, a buffering effect is provided, in addition, the square tube in the frame 21 can be directly used as the limiting frame 23, and the material of the frame 21 is saved.

A plug 26 is slidably arranged on the frame 21, a jack 302 for plugging the plug 26 is arranged on the mounting frame 30, and the plug 26 is used for limiting the movement of the mounting frame 30 along the optical axis 22 and locking the position of the mounting frame 30. Specifically, when the mounting bracket 30 slides along the optical axis 22 and the jack 302 is opposite to the plug 26, the plug 26 can be inserted into the jack 302 and the mounting bracket 30 is locked, and the handle 25 is fixedly connected to the plug 26, so that the manual insertion and extraction are facilitated.

In other embodiments, a plurality of pins 26 may be distributed on the frame 21 along the axial direction of the optical axis 22, so that the mounting frame 30 has a plurality of locking positions, and thus the position of the foot rest 4 has a plurality of positions, so as to meet different requirements of users.

Example seven

In this embodiment, the top surface of the foot rest 4 is inclined (not shown), and when the foot rest 4 is in the unfolded state, the top surface of the foot rest is inclined downward toward the sofa main body side, and when the user steps on the foot rest, the foot rest is also in the inclined state.

When the pedal is required to be moved downwards, the top surface of the pedal which is obliquely arranged is also convenient for a user to apply force, and the acting force applied by the user to the pedal can be vertical to the top surface of the pedal downwards, so that the connecting rod, the piston rod and the air cylinder can rotate anticlockwise, and the situation that the connecting rod, the piston rod and the air cylinder are blocked and cannot rotate is avoided.

The implementation steps of the hidden pedal device of the sofa of the embodiment of the utility model are as follows:

in the initial state, the mounting frame 30 is positioned at the rightmost side on the optical axis 22, the connecting rod is in a horizontal state, the air cylinder 51 and the piston rod 52 are in a horizontal state, and the foot rest 4 is positioned below the frame 21.

Firstly, manually pulling the pedal plate 4 leftwards, so that the mounting frame 30 is driven to move leftwards through the connecting rod until the insertion holes 302 are aligned with the inserted pins 26, and at the moment, the inserted pins 26 are manually inserted into the insertion holes 302 to lock the position of the mounting frame 30;

secondly, the pedal 4 is lifted upwards manually, because the initial positions of the air cylinder 51 and the piston rod 52 are in a horizontal state, the piston rod 52 does not have enough lifting effect on the pedal 4, the pedal 4 is required to be lifted manually, the piston rod 52 and the air cylinder 51 are inclined, and the supporting mechanism 5 lifts the pedal 4 at the moment, so that the pedal 4 is mainly prevented from being lifted under the action of the supporting mechanism 5 after being moved out from the lower part of the frame 21, people who pulls the pedal 4 to move leftwards can be collided, a certain protection effect is achieved, and the pretightening force of the torsion spring has an auxiliary effect on manual lifting, so that the labor is saved;

finally, after the pedal plate 4 is manually lifted to a certain height, the hand can be loosened, at the moment, the pedal plate 4 is lifted under the action of the supporting mechanism 5 until the pedal plate reaches the highest position, and at the moment, the limiting piece 301 is clamped into the bayonet 37 of the connecting rod to limit the connecting rod.

The person puts the foot on the foot rest 4, the supporting force of the supporting mechanism 5 in the vertical direction is enough to support the weight of the foot rest 4 and the foot, and when the person needs to reset, the person only needs to manually and forcefully step down the foot rest 4 until the foot rest 4 descends to the lowest position, and then the person unlocks the latch 26 and pushes the foot rest 4 to the position below the frame 21 for re-storage.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides a hidden pedal device of sofa, can accomodate running-board (4) to sofa main part (1) bottom hide, its characterized in that includes: the moving mechanism (2) is fixed at the bottom of the sofa main body (1) and can drive the pedal plate (4) to move and enable the pedal plate (4) to move out or retract into the bottom of the sofa main body (1); the rotating mechanism (3) is arranged between the pedal plate (4) and the moving mechanism (2), the rotating mechanism (3) comprises a mounting frame (30) and a connecting rod, the mounting frame (30) is connected with the moving mechanism (2) in a sliding mode, one end of the connecting rod is hinged to the mounting frame (30), and the other end of the connecting rod is hinged to the pedal plate (4); the supporting mechanism (5) is connected between the mounting frame (30) and the pedal plate (4) and is hinged with the mounting frame (30) and the pedal plate (4), and lifting acting force can be applied to the pedal plate (4).

2. The sofa hidden pedal device according to claim 1, wherein the supporting mechanism (5) comprises a cylinder (51) and a piston rod (52) which is connected with the cylinder (51) in a sliding way, the cylinder (51) is hinged with the mounting frame (30), one end of the piston rod (52) away from the cylinder (51) is hinged with the pedal plate (4), the air pressure in the cylinder (51) is always larger than the air pressure outside the cylinder (51), and when the pedal plate (4) is in a storage state, the cylinder (51) and the piston rod (52) are in a horizontal state.

3. The sofa hidden pedal device according to claim 1, characterized in that a limiting piece (301) is fixedly arranged on the mounting frame (30), a bayonet (37) capable of being clamped with the limiting piece (301) is formed on the connecting rod, and the limiting piece (301) is used for limiting the rotation range of the connecting rod.

4. The sofa hidden pedal device according to claim 1, characterized in that a bidirectional torsion spring (38) is connected between the connecting rod and the mounting frame (30), the pretightening force direction of the bidirectional torsion spring (38) is switched in the rotating process of the connecting rod, and the pretightening force of the bidirectional torsion spring (38) can provide a certain rotating acting force for the connecting rod.

5. The sofa hidden pedal device according to claim 1, characterized in that the connecting rod comprises a first rod (31) and a second rod (32), the first rod (31) is hinged with the mounting frame (30) through a first rotating shaft (33), the first rod (31) is hinged with the pedal plate (4) through a second rotating shaft (34), the second rod (32) is hinged with the mounting frame (30) through a third rotating shaft (35), the second rod (32) is hinged with the pedal plate (4) through a fourth rotating shaft (36), the four rotating shafts are arranged in parallel, and a vertical connecting line between the first rotating shaft (33) and the second rotating shaft (34) is parallel and equal to a vertical connecting line between the third rotating shaft (35) and the fourth rotating shaft (36).

6. The sofa hidden pedal assembly of claim 5 wherein a nut is connected between the lever and the spindle, the nut being used to adjust the friction between the lever and the spindle.

7. The sofa hidden pedal device according to claim 1, characterized in that the moving mechanism (2) comprises a frame (21) and an optical axis (22), the frame (21) is fixed at the bottom of the sofa main body (1), the optical axis (22) is fixed on the frame (21), the mounting frame (30) is slidably connected with the optical axis (22), and two axial ends of the optical axis (22) are fixedly connected with limiting frames (23).

8. The sofa hidden pedal device according to claim 7, characterized in that the frame (21) or the limit frame (23) is fixedly provided with a crash bar (24).

9. The sofa hidden pedal device according to claim 7, characterized in that a plug pin (26) is slidably arranged on the frame (21), a jack (302) for plugging in the plug pin (26) is formed on the mounting frame (30), and the plug pin (26) is used for limiting the movement of the mounting frame (30) along the optical axis (22) and locking the position of the mounting frame (30).

10. The sofa hidden pedal device according to claim 1, characterized in that the top surface of the foot pedal (4) is arranged obliquely, and when the foot pedal (4) is in the unfolded state, the top surface of the foot pedal (4) is inclined downwards towards one side of the sofa main body (1).