Mechanism with hidden and extended footrest functions and electric sofa

Abstract

The utility model relates to a mechanism with hiding and extending footrest functions, and relates to the technical field of functional iron stands, the mechanism comprises a main footrest plate and an auxiliary footrest plate, the main footrest plate is used for being connected with an iron stand for installing a sofa through a connecting frame, the connecting frame is further used for being connected with a driving structure arranged on the sofa, and the connecting frame comprises a first connecting plate and a second connecting plate, one end of the first connecting plate and one end of the second connecting plate are rotationally installed on the iron frame. The two ends of the third connecting plate are rotationally connected with the main foot rest and the second connecting plate respectively, the two ends of the fourth connecting plate are rotationally connected with the first connecting plate and the main foot rest respectively, and the middle position of the fourth connecting plate is rotationally connected with the second connecting plate; and a widened part is arranged between the two end parts of the fourth connecting plate and extends towards the third connecting plate in the width direction. The utility model further discloses the electric sofa adopting the mechanism. The electric sofa has the advantage that the potential safety hazard of the electric sofa is reduced.

Description

Technical Field

[0001] This application relates to the technical field of functional iron frames, and in particular to a mechanism with hidden and extendable footrest functions.

Background Art

[0002] A sofa is a multi-seat chair with cushions, and a backrest chair equipped with springs or thick foam plastics. There are also increasing requirements for the comfort of sofa seats. Functional seats are generally equipped with functional iron frames, enabling the seats to switch among three states: sitting position, leisure position, and lying position.

[0003] In traditional sofas, the footrest is used to support the legs. However, the design of the footrest is relatively simple, usually consisting of just one board, with a fixed area. After use, the footrest needs to be stored inside the sofa for hiding. However, due to the limited height of the space inside the sofa, the area of the footrest is small, resulting in a poor leg support effect, especially for people with long legs, and thus reducing the comfort when using the footrest mechanism.

[0004] In some existing electric sofas with hidden and extendable footrest functions, since there are multiple transmission connecting rods inside, there is a possibility of pinching hands when users operate, presenting certain potential safety hazards.

Content of the Utility Model

[0005] The technical problem to be solved by this utility model is to overcome the deficiencies of the prior art and provide a mechanism with hidden and extendable footrest functions, reducing the potential safety hazards of electric sofas.

[0006] To solve the above technical problem, this utility model adopts the following technical solutions:

[0007] A mechanism with hidden and extendable footrest functions, including a main footrest and a secondary footrest. The main footrest is connected to the iron frame for installing the sofa through a connecting frame, and the connecting frame is also connected to a driving structure provided on the sofa. The connecting frame includes:

[0008] A first connecting plate and a second connecting plate, one end of each of the first connecting plate and the second connecting plate is rotatably installed on the iron frame;

[0009] A third connecting plate and a fourth connecting plate. Both ends of the third connecting plate are rotatably connected to the main footrest and the second connecting plate respectively. Both ends of the fourth connecting plate are rotatably connected to the first connecting plate and the main footrest respectively, and the middle position of the fourth connecting plate is rotatably connected to the second connecting plate;

[0010] When the connecting frame is in the open state, the fourth connecting plate has a widened portion extending in the width direction between the two ends towards the direction of the third connecting plate.

[0011] Beneficial effects of adopting the present utility model:

[0012] By adopting the above technical solution, the driving structure starts to drive the connecting frame to rotate. The connecting frame in the present utility model adopts a four-bar linkage mechanism. This four-bar linkage mechanism has relatively stable transmission. The third connecting plate and the fourth connecting plate are respectively rotatably connected to the main footrest, so that the main footrest rotates towards the outside of the sofa and also rotates itself, playing a supporting role for the user's feet and improving the comfort of the user during use.

[0013] In addition, in the present utility model, when the connecting frame is in the open state, the fourth connecting plate has a widened portion extending towards the third connecting plate in the width direction between the two end portions. In actual work, when the third connecting plate and the fourth connecting plate are unfolded with the main footrest, they are the connecting plates that are more exposed relative to the first connecting plate and the second connecting plate. The setting of the widened portion is mainly used to reduce the gap between the fourth connecting plate and the third connecting plate in the lateral projection direction. On the one hand, it can reduce the possibility that the user accidentally inserts a finger into the gap during use, reducing potential safety hazards. On the other hand, it also reduces the possibility that some external small parts are caught between the third connecting plate and the fourth connecting plate, reducing possible running obstacles. At the same time, after setting the widened portion, the strength of the fourth connecting plate can also be enhanced to a certain extent, making the connecting frame more stable during the transmission process.

[0014] Preferably, when the main footrest and the auxiliary footrest are in the open state at the same time, there is no misalignment gap between the position of the widened portion and the third connecting plate in the lateral projection direction.

[0015] Preferably, the second connecting plate is connected to the driving structure, and the third connecting plate and the fourth connecting plate are respectively located on different sides of the second connecting plate.

[0016] Preferably, the fourth connecting plate is located on the outermost side of the connecting frame.

[0017] Preferably, when the main footrest and the auxiliary footrest are in the hidden state, the fourth connecting plate is approximately parallel to the third connecting plate in the length direction, and the third connecting plate is covered by the fourth connecting plate.

[0018] Preferably, the auxiliary footrest is rotatably connected to the connecting frame through a linkage assembly, so that the auxiliary footrest and the main footrest move simultaneously, enabling the main footrest and the auxiliary footrest to be rotated to the outside of the iron frame for use or rotated to the inside of the sofa to be hidden; when the main footrest is hidden, the auxiliary footrest is located on the side of the main footrest close to the inside of the sofa, or when the main footrest and the auxiliary footrest cooperate to support the legs, the auxiliary footrest is located on the side of the main footrest away from the iron frame.

[0019] Preferably, the linkage assembly includes:

[0020] a first linkage plate and a second linkage plate, wherein the first linkage plate and the second linkage plate are rotatably mounted on the main footrest through a first rotating shaft and a second rotating shaft respectively;

[0021] The third linkage plate is rotatably mounted on the first linkage plate through a third rotating shaft, and the middle portion of the third linkage plate is rotationally connected to the second linkage plate, the other end of the third linkage plate is used to be connected to the auxiliary footrest, and the third connecting plate is provided with a synchronization component which is connected to the first linkage plate and causes the first linkage plate to rotate.

[0022] Preferably, the first linkage plate and the second linkage plate are respectively located on different sides of the main footrest.

[0023] Preferably, the synchronization component comprises:

[0024] A first synchronizing plate, wherein the first synchronizing plate is arranged on the first linkage plate and is respectively located at two end sides of the first rotating shaft with the third linkage plate;

[0025] The second synchronous plate is rotatably mounted on an end of the first synchronous plate away from the first rotating shaft and is rotatably connected to an end of the third connecting plate away from the first connecting plate.

[0026] Preferably, a bearing plate for rotationally connecting with the third connecting plate, the fourth connecting plate, the first linkage plate and the second linkage plate is detachably provided on the main footrest.

[0027] Preferably, the third connecting plate and the first linkage plate are both provided with a bending portion away from the bearing plate for avoiding position, and the second synchronization plate is located on the side of the bending portion away from the bearing plate.

[0028] Preferably, the fourth connecting plate is provided with a first limiting component for limiting the position of the main footrest when in use.

[0029] Preferably, the first limiting assembly includes a first limiting column, and the second connecting plate is pressed against the first limiting column to position the footrest mechanism when in use.

[0030] Preferably, the second linkage plate is provided with a second limiting component for limiting the position of the auxiliary footrest when in use.

[0031] Preferably, the second limiting assembly includes a second limiting column, and the third linkage plate is pressed against the second limiting column to position the footrest mechanism when in use.

[0032] Preferably, the first connecting plate and the second connecting plate are respectively connected to the two side walls of the iron frame opposite to each other, and the second connecting plate is provided with a bending section for avoiding position.

[0033] Preferably, when the main footrest and the auxiliary footrest are in the hidden state, the auxiliary footrest does not overlap with the linkage assembly in the lateral projection direction.

[0034] The present utility model also discloses an electric sofa, including an iron frame, a driving structure, and a retractable footrest mechanism. The retractable footrest mechanism adopts the mechanism with the functions of hiding and extending the footrest in any one of the above-mentioned schemes.

[0035] These features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and the drawings.

Description of the Drawings

[0036] Figure 1 is a schematic structural diagram of the footrest mechanism when it is hidden in the present application;

[0037] Figure 2 is a schematic structural diagram of the footrest mechanism when it is opened and in use in the present application, with the main footrest 11 and the auxiliary footrest 12 omitted;

[0038] Figure 3 is a partial structural diagram of the present application.

[0039] Reference numerals: 11, main footrest; 12, auxiliary footrest; 13, bearing plate; 14, iron frame; 2, connecting frame; 21, first connecting plate; 22, second connecting plate; 23, third connecting plate; 24, fourth connecting plate; 241, widened part; 25, bent section; 3, linkage assembly; 31, first linkage plate; 32, second linkage plate; 33, third linkage plate; 34, first rotating shaft; 35, second rotating shaft; 36, third rotating shaft; 4, synchronization assembly; 41, first synchronization plate; 42, second synchronization plate; 43, bent part; 5, limiting assembly; 51, first limiting post; 52, second limiting post; 53, first arc-shaped groove; 54, second arc-shaped groove.

Specific Embodiments

[0040] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0041] In the following description, terms such as "inner", "outer", "upper", "lower", "left", "right", etc. indicating directions or positional relationships are only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be construed as a limitation to the present utility model.

[0042] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication between two components or the interaction relationship between two components. However, indicating a direct connection means that there is no connection relationship constructed through an excessive structure between the two connected main bodies, and they are only connected through the connection structure to form an integral whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0044] Embodiment 1:

[0045] Referring to Figure 1 , the mechanism with the functions of hiding and extending the footrest includes a main footrest plate 11 and a secondary footrest plate 12. The main footrest plate 11 is connected to the iron frame 14 for installing the sofa through a connecting frame 2. At the same time, the connecting frame 2 is also used to connect to a driving structure provided on the sofa to achieve the movement of the connecting frame 2; the secondary footrest plate 12 is connected to the connecting frame 2 through a linkage assembly 3, so that the secondary footrest plate 12 moves simultaneously with the main footrest plate 11, enabling the main footrest plate 11 and the secondary footrest plate 12 to be rotated to the outside of the sofa 14 for use or rotated to the inside of the sofa for hiding.

[0046] Referring to Figure 1 and Figure 2, the area of the main footrest 11 is larger than that of the auxiliary footrest 12, and both the main footrest 11 and the auxiliary footrest 12 are in the shape of a cuboid; when the main footrest 11 and the auxiliary footrest 12 move inside the sofa for storage, the main footrest 11 is in a vertical state, while the auxiliary footrest 12 is located on the side of the main footrest 11 closer to the inside of the sofa, and the bottom end of the auxiliary footrest 12 is in an inclined state with the side closer to the main footrest 11; or, when the main footrest 11 and the auxiliary footrest 12 move outside the sofa for use, both the main footrest 11 and the auxiliary footrest 12 are in a horizontal state and cooperate to support the human legs, and at the same time, the auxiliary footrest 12 is located on the side of the main footrest 11 away from the iron frame 14.

[0047] Both ends of the main footrest 11 are fixedly installed on the bearing plate 13 through screws. There are two connecting frames 2 arranged at intervals along the length direction of the main footrest 11 and respectively connected to the two bearing plates 13. The rotation directions of the various structures inside the connecting frame 2 are parallel, and the axis of the rotation direction is parallel to the length direction of the main footrest 11.

[0048] Refer to Figure 2 and Figure 3 , the connecting frame 2 includes a first connecting plate 21, a second connecting plate 22, a third connecting plate 23 and a fourth connecting plate 24. The tops of the first connecting plate 21 and the second connecting plate 22 are drivingly installed on the opposite side walls of the iron frame 14, and the first connecting plate 21 is located on the side of the second connecting plate 22 closer to the inside of the sofa; one end of the third connecting plate 23 is rotatably installed at the bottom end of the second connecting plate 22 and the other end is rotatably connected to the bearing plate 13, and the fourth connecting plate 24 is rotatably installed at the bottom end of the second connecting plate 22 and both ends are respectively rotatably connected to the bottom end of the first connecting plate 21 and the bearing plate 13.

[0049] As Figure 2 shown, when the connecting frame 2 is in the open state, that is, when the main footrest 11 and the auxiliary footrest 12 are both open, the fourth connecting plate 24 has a widened portion 241 extending in the width direction between the two ends towards the direction of the third connecting plate 23. When the main footrest 11 and the auxiliary footrest 12 are both open, the preferred position of the widened portion 241 has no misalignment gap with the third connecting plate 23 in the lateral projection direction. Such a design is to minimize the gap between the fourth connecting plate 24 and the third connecting plate 23 in the lateral projection direction as much as possible, and to reduce the possibility that the user accidentally inserts a finger into the gap during use, reducing potential safety hazards. It should be noted that the lateral projection direction referred to in this article is the front view angle direction shown in Figure 2 shown, and from Figure 2It can be seen that the third connecting plate 23 and the fourth connecting plate 24 are almost in a gap-free state when in the open state, which not only reduces potential safety hazards, but also reduces the possibility of some small external parts being sandwiched between the third connecting plate 23 and the fourth connecting plate 24, thereby reducing possible operational obstacles. At the same time, the provision of the widened portion 241 can also strengthen the strength of the fourth connecting plate 24 to a certain extent, thereby making the connecting frame 2 more stable during the transmission process.

[0050] like Figure 1 and Figure 2 As shown, in this embodiment, the fourth connecting plate 24 is located at the outermost side of the connecting frame 2. Placing the fourth connecting plate 24 with the widened portion 241 at the outermost side can maximize safety, which is equivalent to achieving direct shielding. If the fourth connecting plate 24 with the widened portion 241 is located on the inner side, because the gap between the third connecting plate 23 and the fourth connecting plate 24 in the thickness direction still exists, there is still a high probability that a child's fingers or small external objects enter from the vertical gap. Therefore, although the widened portion has increased safety to a certain extent, arranging the fourth connecting plate 24 on the outer side has a better effect.

[0051] like Figure 1 As shown, the main footrest 11 and the auxiliary footrest 12 are in a hidden state, the fourth connecting plate 24 is nearly parallel to the third connecting plate 23 in the length direction, and the third connecting plate 23 is covered by the fourth connecting plate 24. Figure 1 It can be seen that because the fourth connecting plate 24 is nearly parallel to the third connecting plate 23 in the length direction, the third connecting plate 23 is almost mostly covered by the fourth connecting plate 24. In this way, from the hidden state to the extended state, the gap between the third connecting plate 23 and the fourth connecting plate 24 is almost not exposed, and the possibility of the user's hand being pinched between the third connecting plate 23 and the fourth connecting plate 24 is further reduced.

[0052] like Figure 3 As shown, the second connecting plate 22 is connected to the driving structure, and the third connecting plate 23 and the fourth connecting plate 24 are respectively located on different sides of the second connecting plate 22. This design can balance the forces on both sides of the second connecting plate 22, making the product structure more stable and further improving safety.

[0053] The fourth connecting plate 24 is located on the side of the second connecting plate 22 away from the third connecting plate 23, and the first connecting plate 21 and the second connecting plate 22 are connected to the same side wall of the fourth connecting plate 24. At the same time, a bending section 25 away from the first connecting plate 21 is formed on the second connecting plate 22 by bending, so that the first connecting plate 21 and the second connecting plate 22 are respectively rotatably connected to the two side walls opposite to each other of the iron frame 14; the driving structure adopts an electric push rod, and a pushing plate rotatably connected to the bending section 25 is fixedly installed on the electric push rod.

[0054] Referring to Figure 1 and Figure 2 Figure 2

[0055] Referring to Figure 1 and Figure 2 Figure 2

[0056] Referring to Figure 2 and Figure 3, a limiting component 5 for limiting the positions of the main footrest plate 11 and the auxiliary footrest plate 12 during use is provided on the fourth connecting plate 24 and the third linkage plate 33. The limiting component specifically includes a first limiting component and a second limiting component. The first limiting component is used to limit the position of the main footrest plate 11 during use, and the second limiting component is used to limit the position of the auxiliary footrest plate 12 during use. The first limiting component includes a first limiting post 51, which is fixedly installed on the side wall of the fourth connecting plate 24 close to the second connecting plate 22. There are two first limiting posts 51 and they are located on both sides of the second connecting plate 22. At the same time, first arc-shaped grooves 53 for fitting and positioning with the first limiting posts 51 are formed on the opposite side walls of the second connecting plate 22; the second limiting component includes a second limiting post 52, which is fixedly installed on the side wall of the second linkage plate 32 close to the first linkage plate 31, and a second arc-shaped groove 54 for fitting and positioning with the second limiting post 52 is formed on the first linkage plate 31.

[0057] When the footrest mechanism is opened, the second connecting plate 22 rotates close to the two first limiting posts 51 until the two first limiting posts 51 are closely attached to the two first arc-shaped grooves 53 for positioning. At the same time, the second linkage plate 32 approaches the second limiting post 52 until the second limiting post 52 is closely attached to the second arc-shaped groove 54 for positioning. At this time, the main footrest plate 11 and the auxiliary footrest plate 12 are in a horizontal state and are used to support a person's legs for positioning.

[0058] In addition, as shown in Figure 1 , it is a schematic diagram of the main footrest plate 11 and the auxiliary footrest plate 12 in a hidden state. From this schematic diagram, it can be seen that in the lateral projection direction, the auxiliary footrest plate 12 does not overlap with the linkage assembly. For example, it does not overlap with the second linkage plate 32. Such a design enables the length of the auxiliary footrest plate 12 to extend outside the linkage assembly and is not restricted by the length of the linkage assembly. If the auxiliary footrest plate 12 overlaps with the linkage assembly in the lateral projection direction, the length of the auxiliary footrest plate 12 cannot exceed the horizontal distance between the two linkage assemblies, which is likely to result in a long main footrest plate 11 and a short auxiliary footrest plate 12. If the length of the auxiliary footrest plate 12 is short, it will affect the range for the user to rest their feet. Therefore, with this structure designed in the embodiment, the length of the auxiliary footrest plate 12 can be arbitrarily set without being affected by the linkage assembly.

[0059] The working principle of the embodiment of the present application is:

[0060] When in use, the electric push rod starts to drive the second connecting plate 22 to rotate. At the same time, the first connecting plate 21, the third connecting plate 23 and the fourth connecting plate 24 rotate simultaneously to drive the bearing plate 13 and the main footrest plate 11 to rotate from the inside of the sofa to the outside of the sofa. At the same time, the first linkage plate 31, the second linkage plate 32 and the third linkage plate 33 drive the auxiliary footrest plate 12 to rotate, so that both the main footrest plate 11 and the auxiliary footrest plate 12 are rotated to the outside of the sofa and in a horizontal state, thereby realizing the support for the human legs; when retracting is needed, the electric push rod retracts to drive the main footrest plate 11 and the auxiliary footrest plate 12 to rotate to the inside of the sofa for hiding, thereby improving the comfort when the footrest mechanism is in use.

[0061] Embodiment 2:

[0062] This embodiment is an electric sofa, including an iron frame, a driving structure and a telescopic footrest mechanism connected to the iron frame, wherein the telescopic footrest mechanism adopts the mechanism with the hidden and extended footrest functions in Embodiment 1 or a mechanism obtained by simply replacing Embodiment 1.

[0063] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A mechanism with hidden and extended footrest function, comprising a main footrest and an auxiliary footrest, wherein the main footrest is connected to an iron frame for mounting a sofa through a connecting frame, and the connecting frame is also connected to a driving structure arranged on the sofa, characterized in that: The connecting frame includes: A first connecting plate and a second connecting plate, one end of each of the first connecting plate and the second connecting plate is rotatably mounted on the iron frame; A third connecting plate and a fourth connecting plate, both ends of the third connecting plate are rotatably connected to the main footrest and the second connecting plate respectively, both ends of the fourth connecting plate are rotatably connected to the first connecting plate and the main footrest respectively, and the middle position between both ends of the fourth connecting plate is rotatably connected to the second connecting plate; When the connecting frame is in the open state, there is a widened portion extending in the width direction from the middle position between both ends of the fourth connecting plate towards the third connecting plate.

2. The mechanism with a hidden and extendable footrest function according to claim 1, characterized in that: When the main footrest and the auxiliary footrest are both in the open state, there is no misalignment gap between the position where the widened portion is located and the third connecting plate in the lateral projection direction.

3. The mechanism with a hidden and extendable footrest function according to claim 1, characterized in that: The second connecting plate is connected to the driving structure, and the third connecting plate and the fourth connecting plate are respectively located on different sides of the second connecting plate.

4. A mechanism with a hidden and extendable footrest function according to claim 1, characterized in that: The fourth connecting plate is located on the outermost side of the connecting frame.

5. An apparatus having a hidden and extendable footrest function according to claim 1, characterized in that: When the main footrest and the auxiliary footrest are in the hidden state, the fourth connecting plate is approximately parallel to the third connecting plate in the length direction, and the third connecting plate is covered by the fourth connecting plate.

6. The mechanism with the functions of hiding and extending footrest according to claim 1, characterized in that: The auxiliary footrest is rotatably connected to the connecting frame through a linkage assembly, so that the auxiliary footrest and the main footrest move simultaneously, enabling the main footrest and the auxiliary footrest to be rotated to the outside of the iron frame for use or rotated to the inside of the sofa for hiding; When the main footrest is hidden, the auxiliary footrest is located on the side of the main footrest close to the inside of the sofa, or when the main footrest and the auxiliary footrest cooperate to support the legs, the auxiliary footrest is located on the side of the main footrest away from the iron frame.

7. The mechanism with a hidden and extendable footrest function according to claim 6, characterized in that: The linkage assembly includes: A first linkage plate and a second linkage plate, the first linkage plate and the second linkage plate are respectively rotatably mounted on the main footrest through a first rotating shaft and a second rotating shaft; A third linkage plate, the third linkage plate is rotatably mounted on the first linkage plate through a third rotating shaft, and the middle position of the third linkage plate is rotatably connected to the second linkage plate. The other end of the third linkage plate is used to be connected to the auxiliary footrest, and a synchronization assembly for connecting and rotating the first linkage plate is provided on the third connecting plate.

8. A mechanism with a hidden and extendable footrest function according to claim 7, characterized in that: The first linkage plate and the second linkage plate are respectively located on different sides of the main footrest.

9. The mechanism with a hidden and extendable footrest function according to claim 7, characterized in that: The synchronization assembly includes: A first synchronization plate, the first synchronization plate is provided on the first linkage plate and is respectively located on both ends of the first rotating shaft with the third linkage plate; A second synchronization plate, the second synchronization plate is rotatably mounted on the end of the first synchronization plate away from the first rotating shaft and is rotatably connected to the end of the third connecting plate away from the first connecting plate.

10. The mechanism with the functions of hiding and extending the footrest according to claim 9, characterized in that: A bearing plate for rotatably connecting to the third connecting plate, the fourth connecting plate, the first linkage plate and the second linkage plate is detachably provided on the main footrest.

11. An apparatus having a hidden and extendable footrest function according to claim 10, characterized in that: Bending portions for avoiding interference are provided on both the third connecting plate and the first linkage plate away from the bearing plate, and the second synchronization plate is located on the side of the bending portion away from the bearing plate.

12. The mechanism with a hidden and extendable footrest function according to claim 1, characterized in that: A first limiting assembly for limiting the position of the main footrest during use is provided on the fourth connecting plate.

13. The mechanism with the functions of hiding and extending the footrest according to claim 12, characterized in that: The first limiting assembly includes a first limiting post, and the second connecting plate presses against the first limiting post to position the position of the footrest mechanism during use.

14. A mechanism with a hidden and extendable footrest function according to claim 7, characterized in that: A second limiting component for limiting the position of the auxiliary footrest during use is provided on the second linkage plate.

15. A mechanism with a hidden and extendable footrest function according to claim 14, characterized in that: The second limiting component includes a second limiting post, and the third linkage plate presses against the second limiting post to position the footrest mechanism during use.

16. A mechanism with a hidden and extendable footrest function according to claim 1, characterized in that: The first connecting plate and the second connecting plate are respectively connected to the opposite side walls of the iron frame, and a bent section for avoiding position is provided on the second connecting plate.

17. An apparatus having a function of hiding and extending a footrest according to claim 7, wherein: When the main footrest and the auxiliary footrest are in a hidden state, the auxiliary footrest does not overlap with the linkage assembly in the lateral projection direction.

18. An electric sofa, comprising an iron frame, a driving structure and a telescopic footrest mechanism, characterized in that, The retractable footrest mechanism adopts the mechanism with the functions of hiding and extending the footrest as described in any one of claims 1 to 17.

Images