Foot rest device for furniture

Abstract

The utility model discloses a furniture footrest device assembled on a cushion frame. The furniture footrest device comprises a footrest front swing rod, a footrest rear swing rod, a first middle connecting rod, a footrest front connecting rod, a footrest rear connecting rod, a second middle connecting rod, a first long connecting rod and a second long connecting rod. The upper end of the footrest rear connecting rod is hinged to the rear end of the first long connecting rod, and the lower end of the footrest rear connecting rod is hinged to the footrest rear swing rod. The lower end of the footrest front connecting rod is hinged to the footrest front swing rod, and the upper end of the footrest front connecting rod is sequentially hinged to the rear end of the second long connecting rod and the rear end of the first long connecting rod. The second middle connecting rod is hinged to the foot rest rear connecting rod and the foot rest front swing rod. A first foot rest head is hinged to the front end of the first long connecting rod, a second foot rest head is hinged to the position, away from the first long connecting rod, of the first foot rest head, a short rod is hinged to the second foot rest head, and the front end of the second long connecting rod is sequentially hinged to the first foot rest head and the short rod. According to the footrest device for the furniture, the occupied space of the cushion frame in the vertical direction can be reduced in the unfolding and folding process.

Description

Technical Field

[0001] The utility model relates to a piece of furniture, in particular to a footrest device for furniture applied to but not limited to a sofa. Background Art

[0002] With the continuous development of the economy and the continuous progress of society, more and more material consumer goods are provided for people's lives, and the sofa is one of many material consumer goods.

[0003] At present, for adjustable armrest floor series sofas, a stretching iron frame is installed inside, and the stretching iron frame includes a footrest device, a seat cushion device and a backrest mechanism. The relative positions and angles of the footrest, seat cushion and backrest of the sofa can be adjusted through a series of mechanical linkages, so as to realize the switching of the sofa among sitting postures, leisure postures and full lying postures to meet people's use needs.

[0004] However, in the existing footrest device of the stretching iron frame, since the rear end of its first long link is directly hinged to the lower end of the rear swing rod, and the rear end of the second long link is directly hinged to the lower end of the front swing rod, and the upper ends of both the front swing rod and the rear swing rod are hinged to the seat cushion frame respectively, this will cause the footrest device to occupy a large amount of space in the up and down directions of the seat cushion frame during the unfolding and retracting (i.e., stretching and retracting) process.

[0005] Therefore, there is an urgent need for a footrest device for furniture to overcome one or more of the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a footrest device for furniture, which can reduce the space occupied by the seat cushion frame in the up and down directions during the unfolding and retracting process.

[0007] To achieve the above object, the footrest device for furniture of the present utility model is assembled on a seat cushion frame and can be switched between at least a retracted position and an extended position, and includes a front footrest swing rod, a rear footrest swing rod, a first intermediate connecting rod, a front footrest connecting rod, a rear footrest connecting rod, a second intermediate connecting rod, and a first long connecting rod and a second long connecting rod extending in the front-rear direction of the seat cushion frame. The first intermediate connecting rod is located below the seat cushion frame and extends in the front-rear direction of the seat cushion frame. The front footrest swing rod is hinged to both the front end of the seat cushion frame and the first intermediate connecting rod, and the rear footrest swing rod is hinged to both the rear end of the seat cushion frame and the first intermediate connecting rod. The upper end of the rear footrest connecting rod is hinged to the rear end of the first long connecting rod, and the lower end of the rear footrest connecting rod is hinged to the rear footrest swing rod. The lower end of the front footrest connecting rod is hinged to the front footrest swing rod, and the upper end of the front footrest connecting rod is sequentially hinged to the rear end of the second long connecting rod and the rear end of the first long connecting rod. The second intermediate connecting rod is hinged to both the rear footrest connecting rod and the front footrest swing rod. The front end of the first long connecting rod is hinged with a first footrest head with a supporting portion. A second footrest head with a supporting portion is hinged at a position away from the first long connecting rod of the first footrest head. A short rod is hinged to the second footrest head. The front end of the second long connecting rod is sequentially hinged to the first footrest head and the short rod.

[0008] Compared with the prior art, by means of the design of "the front footrest swing rod is hinged to both the front end of the seat cushion frame and the first intermediate connecting rod, the rear footrest swing rod is hinged to both the rear end of the seat cushion frame and the first intermediate connecting rod, the upper end of the rear footrest connecting rod is hinged to the rear end of the first long connecting rod, the lower end of the rear footrest connecting rod is hinged to the rear footrest swing rod, the lower end of the front footrest connecting rod is hinged to the front footrest swing rod, the upper end of the front footrest connecting rod is sequentially hinged to the rear end of the second long connecting rod and the rear end of the first long connecting rod, the second intermediate connecting rod is hinged to both the rear footrest connecting rod and the front footrest swing rod, the front end of the first long connecting rod is hinged with a first footrest head, a second footrest head is hinged at a position away from the first long connecting rod of the first footrest head, a short rod is hinged to the second footrest head, and the front end of the second long connecting rod is sequentially hinged to the first footrest head and the short rod", the first long connecting rod and the second long connecting rod make telescopic sliding relative to the seat cushion frame during the process of the footrest device for furniture of the present utility model switching between the retracted position and the extended position, thereby reducing the space occupation amount in the up-down direction of the seat cushion frame.

[0009] Preferably, when the footrest device for furniture is switched to the retracted position, the supporting portions of both the first footrest head and the second footrest head are arranged one in front and one behind, and the first long connecting rod and the second long connecting rod slide and retract into the seat cushion frame; when the footrest device for furniture is switched to the extended position, the supporting portions of both the first footrest head and the second footrest head are arranged upward, and the first long connecting rod and the second long connecting rod slide and extend out of the seat cushion frame.

[0010] Preferably, an arc-shaped long hole is formed in the rear end of the first long connecting rod, and a limiting convex is provided on the rear connecting rod of the footrest and is placed in the arc-shaped long hole. When the footrest device for furniture is switched to the retracted position, the limiting convex abuts against the hole wall at one end of the arc-shaped long hole, and when the footrest device for furniture is switched to the extended position, the limiting convex abuts against the hole wall at the other end of the arc-shaped long hole.

[0011] Preferably, a front upper hinge position and a front lower hinge position are provided on the front swing rod of the footrest. The seat cushion frame is hinged to the front upper hinge position, and both the front connecting rod of the footrest and the first intermediate connecting rod are hinged to the front lower hinge position; a rear upper hinge position and a rear lower hinge position are provided on the rear swing rod of the footrest, and both the rear connecting rod of the footrest and the first intermediate connecting rod are hinged to the rear lower hinge position.

[0012] Preferably, a lower hinge position is further provided on the front swing rod of the footrest below the front lower hinge position. A rear intermediate hinge position and a rear upper hinge position hinged to the rear end of the first long connecting rod are provided on the rear connecting rod of the footrest. The second intermediate connecting rod is respectively hinged to the lower hinge position and the rear intermediate hinge position, and the rear intermediate hinge position is located between the rear lower hinge position of the rear swing rod of the footrest and the rear upper hinge position of the rear connecting rod of the footrest.

[0013] Preferably, a front intermediate hinge position and a front upper hinge position are further provided on the front connecting rod of the footrest. The rear end of the second long connecting rod is hinged to the front intermediate hinge position of the front connecting rod of the footrest, and the first long connecting rod is hinged to the front upper hinge position of the front connecting rod of the footrest.

[0014] Preferably, the upper end of the front connecting rod of the footrest is a front bending structure bent backward, the front intermediate hinge position of the front connecting rod of the footrest is at the bending position of the front bending structure, the lower end of the rear connecting rod of the footrest is a rear bending structure bent backward, and the rear intermediate hinge position of the rear connecting rod of the footrest is at the bending position of the rear bending structure.

[0015] Preferably, a first hinge position hinged to the front end of the first long connecting rod, a second hinge position hinged to the front end of the second long connecting rod, and a third hinge position hinged to the second footrest head are provided on the first footrest head. The second hinge position is adjacent to the first hinge position. A fourth hinge position is provided on the front end of the second long connecting rod in front of the second hinge position. A fifth hinge position is provided on the second footrest head between the third hinge position and the supporting portion of the second footrest head. The short rod is respectively hinged to the fourth hinge position and the fifth hinge position.

[0016] Preferably, the distance from the second hinge position to the third hinge position is D1, the distance from the third hinge position to the fifth hinge position is D2, the distance from the fifth hinge position to the fourth hinge position is D3, and the distance from the fourth hinge position to the second hinge position is D4, where D1 > D3 > D4 > D2.

[0017] Preferably, the first long link and the second long link are also arranged side by side with a separation in the left - right direction of the seat cushion frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a plan view of the footrest device for furniture of the present utility model in the retracted position and viewed from right to left along the seat cushion frame.

[0019] Figure 2 is Figure 1 a state diagram of the footrest device for furniture shown in a position during the process of switching to the extended position.

[0020] Figure 3 is Figure 2 a state diagram of the footrest device for furniture in the state shown switching to the extended position.

[0021] Figure 4 is Figure 1 a perspective view of the footrest device for furniture in the state shown.

[0022] Figure 5 is Figure 2 a perspective view of the footrest device for furniture in the state shown.

[0023] Figure 6 is Figure 3 a perspective view of the footrest device for furniture in the state shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following describes the preferred embodiments of the present utility model in conjunction with the accompanying drawings of the specification.

[0025] Please refer to Figure 1 and Figure 3 , the footrest device 100 for furniture of the present utility model is assembled on the seat cushion frame 200. The seat cushion frame 200 provides a supporting function and an assembly place for the footrest device 100 for furniture of the present utility model. The footrest device 100 for furniture of the present utility model can also at least Figure 1 in the retracted position shown in Figure 3 and

[0026] Switch between the extended position shown in Figure 2 , Figure 4 , Figure 5 and Figure 6, the footrest device 100 for furniture of the present utility model includes a front footrest swing rod 10, a rear footrest swing rod 20, a first intermediate connecting rod 30, a front footrest connecting rod 40, a rear footrest connecting rod 50, a second intermediate connecting rod 60, and a first long connecting rod 70 and a second long connecting rod 80 extending in the front-rear direction of the seat cushion frame 200. Optionally, in Figure 1 and Figure 4 , as an example, the first long connecting rod 70 is longer than the second long connecting rod 80, and the first long connecting rod 70 and the second long connecting rod 80 are also arranged side by side at intervals in the left-right direction of the seat cushion frame 200, so that the first long connecting rod 70 is located between the seat cushion frame 200 and the second long connecting rod 80, as shown in Figure 1 and Figure 4 .

[0027] At the same time, the first intermediate connecting rod 30 is located below the seat cushion frame 200 and extends in the front-rear direction of the seat cushion frame 200. The front footrest swing rod 10 is hinged to both the seat cushion frame 200 (see Figure 6 ) and the front end 31 of the first intermediate connecting rod 30 (see Figure 5 ). The rear footrest swing rod 20 is hinged to both the seat cushion frame 200 and the rear end 32 of the first intermediate connecting rod 30 (see Figure 5 ). The upper end 51 of the rear footrest connecting rod 50 is hinged to the rear end 71 of the first long connecting rod 70, and the lower end 52 of the rear footrest connecting rod 50 is hinged to the rear footrest swing rod 20. The lower end 41 of the front footrest connecting rod 40 is hinged to the front footrest swing rod 10, and the upper end 42 of the front footrest connecting rod 40 is sequentially hinged to the rear end 81 of the second long connecting rod 80 and the rear end 71 of the first long connecting rod 70. The second intermediate connecting rod 60 is hinged to both the rear footrest connecting rod 50 and the front footrest swing rod 10, so that the combination of the second intermediate connecting rod 60 and the rear footrest connecting rod 50 drives the first long connecting rod 70 at a speed greater than the speed at which the front footrest connecting rod 40 drives the second long connecting rod 80, thereby meeting the need for a speed difference between the first long connecting rod 70 and the second long connecting rod 80.

[0028] Furthermore, a first footrest head 91 with a supporting portion 911 is hinged to the front end 72 of the first long connecting rod 70. A second footrest head 92 with a supporting portion 921 is hinged to a position of the first footrest head 91 away from the first long connecting rod 70. A short rod 93 is hinged to the second footrest head 92. The front end 82 of the second long connecting rod 80 is sequentially hinged to the first footrest head 91 and the short rod 93. Specifically, in Figures 1 to 6Among them, as an example, on the first footrest head 91, there are a first hinge position 912 hinged to the front end 72 of the first long connecting rod 70, a second hinge position 913 hinged to the front end 82 of the second long connecting rod 80, and a third hinge position 914 hinged to the second footrest head 92. The second hinge position 913 is adjacent to the first hinge position 912. On the front end 82 of the second long connecting rod 80, there is a fourth hinge position 83 in front of the second hinge position 913. On the second footrest head 92, there is a fifth hinge position 922 between the third hinge position 914 and the supporting portion 921 of the second footrest head 92. The short rod 93 is respectively hinged to the fourth hinge position 83 and the fifth hinge position 922. Optionally, as an example, the distance from the second hinge position 913 to the third hinge position 914 is D1, the distance from the third hinge position 914 to the fifth hinge position 922 is D2, the distance from the fifth hinge position 922 to the fourth hinge position 83 is D3, and the distance from the fourth hinge position 83 to the second hinge position 913 is D4. Among them, D1 > D3 > D4 > D2. The purpose of such a design is: when the footrest device 100 for furniture of the present utility model is switched to Figure 1 the retracted position shown, the supporting portion 911 of the first footrest head 91 is arranged forward, and the supporting portion 921 of the second footrest head 92 is arranged downward, so as to meet the requirement of the supporting portion 911 of the first footrest head 91 and the supporting portion 921 of the second footrest head 92 being arranged one in front and one below, and it can also prevent the first footrest head 91 and the second footrest head 92 in this position state from protruding out of the seat cushion frame 200, as shown in Figure 1 ; when the footrest device 100 for furniture of the present utility model is switched to Figure 3 the extended position shown, the supporting portion 911 of the first footrest head 91 and the supporting portion 921 of the second footrest head 92 are arranged upward, so as to meet the footrest function requirement of the user, as shown in Figure 3 ; in addition, by means of D1 > D3 > D4 > D2, the space required for the supporting portion 911 of the first footrest head 91 to switch between the forward position and the upward position is smaller, and the space required for the supporting portion 921 of the second footrest head 92 to switch between the downward position and the upward position is smaller. More specifically, as follows:

[0029] As Figure 1 and Figure 4 shown, as an example, when the footrest device 100 for furniture of the present utility model is switched to the retracted position, the first long connecting rod 70 and the second long connecting rod 80 slide and retract into the seat cushion frame 200. Therefore, at this time, both the first long connecting rod 70 and the second long connecting rod 80 occupy the internal space of the seat cushion frame 200, effectively reducing the part of the footrest device 100 for furniture of the present utility model that protrudes out of the seat cushion frame 200 in the retracted position. In addition, in Figure 3 and Figure 6As an example, when the footrest device 100 for furniture of the present utility model is switched to the extended position, the first long link 70 and the second long link 80 slide out of the seat cushion frame 200 to better meet the footrest function requirements of the user.

[0030] Combined with Figure 1 and Figure 3 , as an example, an arc-shaped long hole 73 is formed in the rear end 71 of the first long link 70, and a limit projection 53 placed in the arc-shaped long hole 73 is provided on the rear footrest link 50. When the footrest device 100 for furniture of the present utility model is switched to the retracted position, the limit projection 53 abuts against the hole wall 731ˋ at one end of the arc-shaped long hole 73, and the state is shown in Figure 1 ; when the footrest device 100 for furniture of the present utility model is switched to the extended position, the limit projection 53 abuts against the hole wall 731 at the other end of the arc-shaped long hole 73, and the state is shown in Figure 3 ; the purpose of such a design is to effectively prevent the excessive extension or retraction of the footrest device 100 for furniture of the present utility model.

[0031] As shown in Figure 3 and Figure 6 , as an example, a front upper hinge position 11 and a front lower hinge position 12 are provided on the front footrest swing rod 10. The seat cushion frame 200 is hinged to the front upper hinge position 11, and both the front footrest link 40 and the first intermediate link 30 are hinged to the front lower hinge position 12, so as to achieve the purpose of coaxial hinging of the front footrest link 40, the first intermediate link 30 and the front footrest swing rod 10 by means of the front lower hinge position 12. A rear upper hinge position 21 and a rear lower hinge position 22 are provided on the rear footrest swing rod 20. Both the rear footrest link 50 and the first intermediate link 30 are hinged to the rear lower hinge position 22, so as to achieve the purpose of coaxial hinging of the rear footrest link 50, the first intermediate link 30 and the rear footrest swing rod 20 by means of the rear lower hinge position 22.

[0032] Another example is Figure 3 and Figure 6As shown, as an example, the front footrest swing rod 10 is further provided with a lower hinge position 13 located below the front lower hinge position 12. The rear footrest connecting rod 50 is provided with a rear middle hinge position 54 and an upper rear hinge position 55 hinged to the rear end 71 of the first long connecting rod 70. The second middle connecting rod 60 is respectively hinged to the lower hinge position 13 and the rear middle hinge position 54. The rear middle hinge position 54 is between the rear lower hinge position 22 of the rear footrest swing rod 20 and the upper rear hinge position 55 of the rear footrest connecting rod 50. Optionally, as an example, the lower end 52 of the rear footrest connecting rod 50 is a rearwardly bent structure. The rear middle hinge position 54 of the rear footrest connecting rod 50 is at the bending position of the rearwardly bent structure. Such a design better satisfies that the sliding speed of the first long connecting rod 70 driven by the four-bar linkage structure composed of the seat cushion frame 200, the front footrest swing rod 10, the rear footrest swing rod 20 and the first middle connecting rod 30 is greater than the sliding speed of the second long connecting rod 80 driven by the four-bar linkage structure, so as to meet the purpose that the first long connecting rod 70 can slide relative to the second long connecting rod 80. In addition, the aforementioned arc-shaped long hole 73 is arranged around the upper rear hinge position 55.

[0033] For another example Figure 3 and Figure 6 As shown, as an example, the front footrest connecting rod 40 is further provided with a front middle hinge position 43 and an upper front hinge position 44. The rear end 82 of the second long connecting rod 80 is hinged to the front middle hinge position 43 of the front footrest connecting rod 40, and the first long connecting rod 70 is hinged to the upper front hinge position 44 of the front footrest connecting rod 40. Optionally, as an example, the upper end 42 of the front footrest connecting rod 40 is a frontwardly bent structure. The front middle hinge 43 of the front footrest connecting rod 40 is located at the bending position of the frontwardly bent structure. Such a design can meet the need for a compact fit between the first long connecting rod 70 and the second long connecting rod 80, and can more reliably meet the need for the first long connecting rod 70 to slide relative to the second long connecting rod 80 in the front-rear direction of the seat cushion frame 200 during the switching process of the furniture footrest device 100 of the present invention between the extended position and the retracted position, so as to meet the need for the first long connecting rod 70 to drive the supporting portion 911 of the first footrest head 91 to flip between forward and upward.

[0034] Combined with Figures 1 to 3 , the working principle of the furniture footrest device 100 of the present invention will be described: When the furniture footrest device 100 in the Figure 1 retracted position shown is to be switched to Figure 3When in the extended position shown, at this time, the front footrest swing rod 10 pivots counterclockwise upward around the front upper hinge position 11 and the rear footrest swing rod 20 pivots counterclockwise upward around the rear upper hinge position 21. Thus, while driving the first intermediate link 30 to move upward, it also drives the front footrest link 40 to swing clockwise forward around the rear lower hinge position 12, drives the rear footrest link 50 to swing clockwise forward around the rear lower hinge position 22, and drives the second intermediate link 60 to rotate clockwise forward. Consequently, it drives the first long link 70 and the second long link 80 to slide forward, and makes the sliding speed of the first long link 70 greater than that of the second long link 80. Exactly because the first long link 70 and the second long link 80 slide forward, the first footrest head 91, the second footrest head 92 and the short rod 93 rotate counterclockwise upward.

[0035] When the front footrest swing rod 10 pivots counterclockwise upward around the front upper hinge position 11 and the rear footrest swing rod 20 pivots counterclockwise upward around the rear upper hinge position 21 to Figure 3 the position shown, at this time, the supporting portion 911 of the first footrest head 91 and the supporting portion 921 of the second footrest head 92 just switch to the upward arrangement position, and the state is shown in Figure 3 shown. It should be noted that since the process of the footrest device 100 for furniture of the present utility model switching from the retracted position to the extended position is exactly opposite to the process from the extended position to the retracted position, it will not be elaborated here.

[0036] Compared with the prior art, by means of the design of "the front footrest swing rod 10 is hinged on both the seat cushion frame 200 and the front end 31 of the first intermediate link 30, the rear footrest swing rod 20 is hinged on both the seat cushion frame 200 and the rear end 32 of the first intermediate link 30, the upper end 51 of the rear footrest link 50 is hinged to the rear end 71 of the first long link 70, the lower end 52 of the rear footrest link 50 is hinged to the rear footrest swing rod 20, the lower end 41 of the front footrest link 40 is hinged to the front footrest swing rod 10, the upper end 42 of the front footrest link 40 is successively hinged to the rear end 81 of the second long link 80 and the rear end 71 of the first long link 70, the second intermediate link 60 is hinged on both the rear footrest link 50 and the front footrest swing rod 10, the front end 72 of the first long link 70 is hinged with the first footrest head 91, the second footrest head 92 is hinged at a position away from the first long link 70, the second footrest head 93 is hinged with a short rod 93, and the front end 82 of the second long link 80 is successively hinged to the first footrest head 91 and the short rod 93", during the process of the footrest device 100 for furniture of the present utility model switching between the retracted position and the extended position, the first long link 70 and the second long link 80 do telescopic sliding relative to the seat cushion frame 200, thereby reducing the space occupation amount in the up and down direction of the seat cushion frame 200.

[0037] It should be noted that the direction indicated by arrow A in the attached drawings is the direction from the rear to the front of the seat cushion frame 200, the direction indicated by arrow B in the attached drawings is the direction from the left to the right of the seat cushion frame 200, and the direction indicated by arrow C in the attached drawings is the direction from the bottom to the top of the seat cushion frame 200. In addition, in Figures 1 to 6 a fixed connection portion 23 is bent at a position of the footrest rear swing rod 20 adjacent to the rear lower hinge position 22 for fixedly connecting with an external push-pull member, and the push-pull member provides the power for the movement of the four-bar linkage structure composed of the seat cushion frame 200, the footrest front swing rod 10, the footrest rear swing rod 20 and the first intermediate link 30.

[0038] The above-disclosed are only the preferred examples of the present invention, which are used to facilitate the understanding and implementation by those skilled in the art. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, the equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A footrest device for furniture, mounted on a cushion frame and switchable between at least a retracted position and an extended position, comprising a front footrest swing rod, a rear footrest swing rod and a first intermediate connecting rod located below the cushion frame and extending in the front-rear direction of the cushion frame, wherein the front footrest swing rod is hinged to both the cushion frame and the front end of the first intermediate connecting rod, and the rear footrest swing rod is hinged to both the cushion frame and the rear end of the first intermediate connecting rod, characterized in that: The furniture footrest device also includes a front footrest connecting rod, a rear footrest connecting rod, a second intermediate connecting rod, and a first long connecting rod and a second long connecting rod extending in the front-to-rear direction of the cushion frame, the upper end of the rear footrest connecting rod is hinged to the rear end of the first long connecting rod, the lower end of the rear footrest connecting rod is hinged to the rear footrest swing rod, the lower end of the front footrest connecting rod is hinged to the front footrest swing rod, the upper end of the front footrest connecting rod is hinged to the rear end of the second long connecting rod and the rear end of the first long connecting rod in sequence, the second intermediate connecting rod is hinged to both the rear footrest connecting rod and the front footrest swing rod, the front end of the first long connecting rod is hinged to a first footrest head with a supporting portion, the first footrest head is hinged to a second footrest head with a supporting portion at a position away from the first long connecting rod, the second footrest head is hinged to a short rod, and the front end of the second long connecting rod is hinged to the first footrest head and the short rod in sequence.

2. The furniture footrest device according to claim 1, characterized in that: When the furniture footrest device is switched to the retracted position, the supporting parts of the first footrest head and the second footrest head are arranged one in front and one below, and the first long connecting rod and the second long connecting rod slide and retract into the cushion frame; when the furniture footrest device is switched to the extended position, the supporting parts of the first footrest head and the second footrest head are arranged upward, and the first long connecting rod and the second long connecting rod slide and extend out of the cushion frame.

3. The furniture footrest device according to claim 1, characterized in that: An arc-shaped long hole is provided on the rear end of the first long connecting rod, and a limiting protrusion is provided on the rear connecting rod of the footrest, which is placed in the arc-shaped long hole. The limiting protrusion abuts against the hole wall of one end of the arc-shaped long hole when the furniture footrest device is switched to the retracted position, and the limiting protrusion abuts against the hole wall of the other end of the arc-shaped long hole when the furniture footrest device is switched to the extended position.

4. The furniture footrest device according to claim 1, characterized in that: The front swing rod of the footrest is provided with a front upper hinge position and a front lower hinge position, the seat cushion frame is hinged to the front upper hinge position, and the front connecting rod of the footrest and the first intermediate connecting rod are both hinged to the front lower hinge position; the rear swing rod of the footrest is provided with a rear upper hinge position and a rear lower hinge position, and the rear connecting rod of the footrest and the first intermediate connecting rod are both hinged to the rear lower hinge position.

5. The furniture footrest device according to claim 4, characterized in that: The front footrest swing rod is also provided with a lower hinge position located below the front lower hinge position, the rear footrest connecting rod is provided with a rear middle hinge position and a rear upper hinge position hinged to the rear end of the first long connecting rod, the second middle connecting rod is hinged to the lower hinge position and the rear middle hinge position respectively, and the rear middle hinge position is between the rear lower hinge position of the rear footrest swing rod and the rear upper hinge position of the rear footrest connecting rod.

6. The furniture footrest device according to claim 5, characterized in that: The front footrest connecting rod is also provided with a front middle hinge position and a front upper hinge position. The rear end of the second long connecting rod is hinged to the front middle hinge position of the front footrest connecting rod, and the first long connecting rod is hinged to the front upper hinge position of the front footrest connecting rod.

7. The furniture footrest device according to claim 6, characterized in that: The upper end of the front footrest connecting rod is a front bending structure that bends backward, and the front middle hinge of the front footrest connecting rod is located at the bending part of the front bending structure. The lower end of the rear footrest connecting rod is a rear bending structure that bends backward, and the rear middle hinge of the rear footrest connecting rod is located at the bending part of the rear bending structure.

8. The furniture footrest device according to claim 1, characterized in that: The first footrest is provided with a first hinge position hinged to the front end of the first long connecting rod, a second hinge position hinged to the front end of the second long connecting rod and a third hinge position hinged to the second footrest, the second hinge position is adjacent to the first hinge position, the front end of the second long connecting rod is provided with a fourth hinge position located in front of the second hinge position, the second footrest is provided with a fifth hinge position located between the third hinge position and the supporting part of the second footrest, and the short rod is hinged to the fourth hinge position and the fifth hinge position respectively.

9. The furniture footrest device according to claim 8, characterized in that: The distance from the second hinge position to the third hinge position is D1, the distance from the third hinge position to the fifth hinge position is D2, the distance from the fifth hinge position to the fourth hinge position is D3, and the distance from the fourth hinge position to the second hinge position is D4, wherein D1>D3>D4>D2.

10. The furniture footrest device according to claim 1, characterized in that: The first long connecting rod and the second long connecting rod are also arranged side by side and spaced apart in the left-right direction of the seat cushion frame.

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