Folding footrest mechanism of office and leisure chair

Abstract

The utility model relates to a folding footrest mechanism of an office and leisure chair, which is used for solving the problems that some office and leisure chairs mentioned in the background technology can be used only by overturning footrest tables towards two sides, additional space needs to be reserved in the overturning process, and the overturning mode is not convenient enough for some office areas with narrow space; the technical problems that a foot rest cannot ascend, descend and rotate, the application range is limited, and the use comfort of office staff is reduced are solved. Comprising a seat plate, two movable blocks are slidably arranged at the bottom of the seat plate in the sitting depth direction, rotatable mounting blocks are arranged in the two movable blocks, and first locking assemblies are arranged in the movable blocks and used for locking the rotated mounting blocks; an auxiliary block capable of sliding in the length direction of the mounting block is arranged in the mounting block; pedals are rotationally arranged on the lower portions of the auxiliary blocks, and a second locking assembly is arranged between the two pedals. A third locking assembly is arranged between the pedal and the auxiliary block. And a fourth locking assembly is arranged between the mounting block and the seat plate.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a folding footrest mechanism for an office lounge chair. Background Art

[0002] An office lounge chair is a kind of furniture that combines the characteristics of an office chair and a lounge chair. Especially, with the increasing demand for the quality of life, office workers need to fully rest their feet when sitting on traditional seats.

[0003] The prior art, such as the utility model patent document with the authorization announcement number of "CN218791387U" and the patent name of "A Chair with a Footrest Stool", discloses a chair. The chair includes a chair body, the chair body includes a seat board, a bracket is fixed at the lower end of the seat board, a backrest is fixed upward at one end of the bracket, the lower end of the bracket is connected to a cylinder rod through a bearing, the cylinder rod is connected to a cylinder body, a support foot frame is fixed at the lower end of the cylinder rod body, and universal wheels are installed on the feet of the support foot frame; a footrest seat is fixed at the upper end of the cylinder body, two rotating shafts are installed at the end of the footrest seat through bearings, a connecting block is fixed at the upper end of the rotating shaft, the connecting block is fixedly connected to a footrest platform, the lower end of the rotating shaft extends downward through the footrest seat, and a locking structure for angle locking of the rotating shaft is installed on the footrest seat.

[0004] The above patent has some disadvantages in use: it not only needs to flip the footrest platform to both sides for use, but also requires extra space during the flipping process. For some narrow office areas, this flipping method is not convenient enough; the footrest platform cannot be lifted or rotated, the applicable range is somewhat limited, and the comfort of office workers will be reduced. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a folding footrest mechanism for an office lounge chair, which is used to solve some technical problems mentioned in the background art, that is, some office lounge chairs need to flip the footrest platform to both sides for use, and extra space is required during the flipping process. For some narrow office areas, this flipping method is not convenient enough; the footrest platform cannot be lifted or rotated, the applicable range is somewhat limited, and the comfort of office workers will be reduced.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A folding footrest mechanism for an office lounge chair, comprising a seat board. Along the seat depth direction, two movable blocks are slidably arranged at the bottom of the seat board. Rotatable mounting blocks are provided in both of the two movable blocks. A first locking assembly is arranged in the movable block for locking the rotated mounting block. An auxiliary block is slidably arranged in the mounting block along the length direction of the mounting block. A footrest is rotatably arranged at the lower part of the auxiliary block. A second locking assembly is arranged between the two footrests for locking the two rotated footrests so that the two footrests are located on the same horizontal plane. A third locking assembly is arranged between the footrest and the auxiliary block for locking the rotated footrest. A fourth locking assembly is arranged between the mounting block and the seat board for locking the rotated mounting block.

[0008] Working principle:

[0009] Before use, slide the movable block horizontally to slide the movable block beyond the side of the seat board, then rotate the two footrests, and use the second locking assembly to lock the two rotated footrests.

[0010] When in use, the user sits on the lounge chair, then places the feet on the two footrests. At this time, the user exerts force with both feet to rotate the footrests. At this time, the two mounting blocks rotate in the two movable blocks. When rotated to a certain angle, use the first locking assembly to lock the rotated mounting block.

[0011] Then vertically adjust the auxiliary block to adjust the height of the two footrests.

[0012] When the footrest needs to be stored, first release the locking of the two footrests by the second locking assembly, then rotate the two footrests towards the two auxiliary blocks, and use the third locking assembly to lock.

[0013] Then rotate the mounting block towards the seat board and use the fourth locking assembly to lock the rotated mounting block.

[0014] Beneficial effects:

[0015] 1. By setting two movable blocks, two rotatable mounting blocks, a first locking assembly, and a footrest, the inclination angle of the footrest in the movable block can be adjusted.

[0016] 2. By setting an auxiliary block that can slide along the length direction of the mounting block, the height of the footrest can be adjusted, and in cooperation with the rotation of the mounting block, it can adapt to different users, and can be adjusted to a suitable inclination angle according to the needs of the user, so as to provide different postures for the user to meet the comfort of the user, and has strong practicability.

[0017] 3. By setting the second locking component, the third locking component, and the fourth locking component, the two footrests can be separated and rotated individually to be connected to their respective auxiliary blocks. Then, in cooperation with the movable block that slides in the sitting depth direction, the auxiliary block and the footrest can be stored by rotating the auxiliary block, saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0019] Figure 2 is Figure 1 a schematic structural diagram of the left side;

[0020] Figure 3 is Figure 2 a schematic structural diagram of the other side of the movable block in the middle.

[0021] In the above-mentioned drawings: seat board 1, movable block 2, mounting block 3, auxiliary block 4, footrest 5, first chute 6, first transmission shaft 7, first bevel gear 8, second bevel gear 9, first slide bar 10, first rotating shaft 11, insertion hole 12, arc-shaped insertion groove 13, insertion rod 14, second chute 15, second transmission shaft 16, second cavity 17, third bevel gear 18, fourth bevel gear 19, second slide bar 20, mounting plate 21, second rotating shaft 22, locking plate 23, bolt 24, first magnet 25, placement groove 26, second magnet 27, first rotating shaft 28, second rotating shaft 29, first cavity 30. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0023] Embodiment:

[0024] As Figure 1 and Figure 2 shown, a folding footrest mechanism for an office leisure chair includes a seat board 1. Two movable blocks 2 are slidably arranged at the bottom of the seat board 1 along the sitting depth direction. Rotatable mounting blocks 3 are arranged in both of the two movable blocks 2. A first locking component is arranged in the movable block 2 for locking the rotated mounting block 3. An auxiliary block 4 that can slide along the length direction of the mounting block 3 is arranged in the mounting block 3. A footrest 5 is rotatably arranged at the lower part of the auxiliary block 4. A second locking component is arranged between the two footrests 5 for locking the rotated two footrests 5 so that the two footrests 5 are located on the same horizontal plane. A third locking component is arranged between the footrest 5 and the auxiliary block 4 for locking the rotated footrest 5. A fourth locking component is arranged between the mounting block 3 and the seat board 1 for locking the rotated mounting block 3.

[0025] By setting two movable blocks 2, two rotatable mounting blocks 3, a first locking component, and a footrest 5, the tilt angle of the footrest 5 within the movable block 2 can be adjusted; by setting an auxiliary block 4 that can slide along the length direction of the mounting block 3, the height of the footrest 5 can be adjusted, and in cooperation with the rotation of the mounting block 3, it can adapt to different users, and can be adjusted to a suitable tilt angle according to the user's needs, so as to provide different postures for the user to meet the user's comfort, with strong practicability;

[0026] By setting a second locking component, a third locking component, and a fourth locking component, the two footrests 5 can be separated, rotated individually and connected to their respective auxiliary blocks 4, and then in cooperation with the movable block 2 that slides along the seat depth direction, and then by rotating the auxiliary block 4, the auxiliary block 4 and the footrest 5 can be stored, saving space.

[0027] As Figure 1 and Figure 2 shown, two first sliding grooves 6 are opened at the bottom of the seat board 1. A first transmission shaft 7 is rotatably provided in one of the first sliding grooves 6. One of the movable blocks 2 is slidably sleeved on the first transmission shaft 7. The top surfaces of the two movable blocks 2 are in contact with the two first sliding grooves 6. A first cavity 30 is opened at the bottom of the seat board 1. The first transmission shaft 7 rotatably penetrates into the first cavity 30, and a first bevel gear 8 is fixedly sleeved at the end of the first transmission shaft 7 located in the first cavity 30. A first rotating shaft 28 is rotatably penetrated through one side of the seat board 1. The first rotating shaft 28 rotatably penetrates into the first cavity 30, and a second bevel gear 9 is fixedly sleeved at the end of the first rotating shaft 28 located in the first cavity 30. The first bevel gear 8 meshes with the second bevel gear 9; a first sliding rod 10 is fixedly provided in the other first sliding groove 6. The other movable block 2 is slidably sleeved on the first sliding rod 10. During use, rotate the rod section of the first rotating shaft 28 provided outside the seat board 1. The rotation of the first rotating shaft 28 drives the movable block 2 to slide and extend beyond the side of the seat board, so as to specifically realize the adjustment of the horizontal position of the footrest 5.

[0028] As Figures 1 to 3 shown, a first rotating shaft 11 is rotatably provided in the two movable blocks 2. The two ends of the first rotating shaft 11 are rotatably provided in the seat board 1. Two mounting blocks 3 are fixedly sleeved on the two first rotating shafts 11; a plurality of insertion holes 12 are opened on the opposite sides of the two movable blocks 2. The plurality of insertion holes 12 are combined into an arc shape. An arc-shaped insertion groove 13 is opened on the opposite sides of the two movable blocks 2. The arc-shaped structure of the arc-shaped insertion groove 13 is consistent with the arc-shaped structure formed by the combination of the plurality of insertion holes 12. A through hole is opened in the mounting block 3. The first locking component includes an insertion rod 14. The insertion rod 14 slidably penetrates into the arc-shaped insertion groove 13, and penetrates through the through hole and one of the insertion holes 12, so as to lock the rotated mounting block 3.

[0029] When the mounting block 3 rotates within the movable block 2, the insertion rod 14 slides synchronously within the arc-shaped insertion groove 13. When it is necessary to lock the mounting block 3, the insertion rod 14 is pushed through the corresponding insertion hole 12, thereby locking the rotated mounting block 3. This method is relatively simple and convenient to operate.

[0030] As Figure 1 and Figure 2 shown, a second sliding groove 15 extending along the length direction of the mounting block 3 is formed in the mounting block 3. A second transmission shaft 16 is rotatably provided in one of the second sliding grooves 15. One of the auxiliary blocks 4 is slidably sleeved on the second transmission shaft 16. A second cavity 17 is further formed in the mounting block 3 corresponding to one of the second sliding grooves 15. The second cavity 17 is located above the second sliding groove 15. One end of the second transmission shaft 16 rotatably penetrates into the second cavity 17. A third bevel gear 18 is fixedly sleeved on the end of the second transmission shaft 16 located in the second cavity 17. A second rotating shaft 29 is rotatably penetrated through one side of the mounting block 3. The second rotating shaft 29 rotatably penetrates into the second cavity 17, and a fourth bevel gear 19 is fixedly sleeved on the end of the second rotating shaft 29 located in the second cavity 17. The third bevel gear 18 meshes with the fourth bevel gear 19. A second sliding rod 20 is fixedly provided in the other second sliding groove 15. The other auxiliary block 4 is slidably sleeved on the second sliding rod 20. By rotating the second rotating shaft 29, the auxiliary block 4 and the foot pedal 5 are driven to move vertically, thereby specifically realizing the adjustment of the height of the foot pedal 5, which is convenient for operation.

[0031] As Figure 1 and Figure 2 shown, mounting plates 21 are fixedly provided on both sides of the lower part of each auxiliary block 4. A second rotating shaft 22 is rotatably provided between the two mounting plates 21 of the same auxiliary block 4. The two foot pedals 5 are fixedly sleeved on the two second rotating shafts 22. The second locking assembly includes a locking plate 23 and a bolt 24. The locking plate 23 is rotatably provided on one side of one of the foot pedals 5. The locking plate 23 is rotatably connected to the foot pedal 5 by means of hinge, which belongs to the prior art and will not be elaborated here. The bolt 24 is used to screw into the locking plate 23 and the other foot pedal 5, and the three are threadedly connected. After the two foot pedals 5 are unfolded, the bolt 24 is screwed into the locking plate 23 and the other foot pedal 5, thereby connecting and locking the two foot pedals 5.

[0032] As Figure 1As shown, the third locking component includes four first magnetic blocks 25, which are respectively arranged on one side of two footrests 5 facing the seat board 1 and on one side of two auxiliary blocks 4 opposite to each other. The first magnetic block 25 on each auxiliary block 4 is used to attract the first magnetic block 25 on the corresponding footrest 5 after the corresponding footrest 5 rotates. This locking method is simple. It only needs to rotate the footrest 5 to attract the two first magnetic blocks 25 to each other, which is convenient for operation.

[0033] As Figure 1 and Figure 2 As shown, two placement grooves 26 are also opened at the bottom of the seat board 1. The two placement grooves 26 communicate with the corresponding first sliding grooves 6 respectively. The fourth locking component includes four second magnetic blocks 27, which are respectively arranged in the two placement grooves 26 and on the side walls of two mounting blocks 3. The second magnetic block 27 in each placement groove 26 is used to attract the second magnetic block 27 on the corresponding mounting block 3 after the corresponding mounting block 3 rotates. This locking method is simple. It only needs to rotate the mounting block 3 to attract the two second magnetic blocks 27 to each other, which is convenient for operation.

[0034] Working principle:

[0035] Before use, the user rotates the first rotating shaft 28. The rotation of the first rotating shaft 28 drives the second bevel gear 9 to rotate. The rotation of the second bevel gear 9 drives the first bevel gear 8 and the first transmission shaft 7 to rotate. The rotation of the first transmission shaft 7 drives the movable block 2 to move, so that the two movable blocks 2 move out of the side of the seat board 1 along the direction of the first transmission shaft 7 and the first sliding rod 10;

[0036] When in use, the user sits on the seat board 1 and then places the feet on the two footrests 5. At this time, the user exerts force with both feet to rotate the footrests 5. The two mounting blocks 3 rotate in the two movable blocks 2. When rotated to a certain angle, the user pushes the insertion rod 14 through the corresponding insertion hole 12 to lock the rotated mounting block 3;

[0037] Then the user rotates the second rotating shaft 29. The rotation of the second rotating shaft 29 drives the fourth bevel gear 19 to rotate. The rotation of the fourth bevel gear 19 drives the third bevel gear 18 and the second transmission shaft 16 to rotate. The rotation of the second transmission shaft 16 drives the auxiliary block 4 to move vertically along the direction of the second transmission shaft 16 and the second sliding rod 20, so as to adjust the height of the footrest 5.

[0038] When it is necessary to store the footrest 5, first unscrew the bolt 24 to separate the two footrests 5, and then rotate the two footrests 5 to make the first magnetic blocks 25 on the two footrests 5 attract the first magnetic blocks 25 on the two auxiliary blocks 4;

[0039] Then rotate the second rotating shaft 29 again to drive the footrest 5 to rise;

[0040] Then rotate the two mounting blocks 3 towards the bottom of the seat board 1, so that the second magnetic blocks 27 on the two mounting blocks 3 attract the two second magnetic blocks 27 in the placement grooves 26, thereby storing the two footrests 5, and thus the whole operation is completed.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A foldable footrest mechanism for an office leisure chair, comprising a seat plate (1), characterized in that: The bottom of the seat plate (1) is provided with two movable blocks (2) that can slide along the seat depth direction, and the two movable blocks (2) are provided with rotatable mounting blocks (3). The movable blocks (2) are provided with a first locking assembly for locking the mounting blocks (3) after rotation; the mounting blocks (3) are provided with an auxiliary block (4) that can slide along the length direction of the mounting blocks (3); the lower part of the auxiliary block (4) is provided with a foot pedal (5) that can rotate, and a second locking assembly is provided between the two foot pedals (5) for locking the two foot pedals (5) after rotation so that the two foot pedals (5) are located in the same horizontal plane; a third locking assembly is provided between the foot pedal (5) and the auxiliary block (4) for locking the foot pedal (5) after rotation; and a fourth locking assembly is provided between the mounting block (3) and the seat plate (1) for locking the mounting block (3) after rotation.

2. The foldable footrest mechanism for an office leisure chair according to claim 1, characterized in that: The seat plate (1) has two first slide grooves (6) at the bottom, wherein a first transmission shaft (7) is rotatably arranged in one of the first slide grooves (6), wherein a movable block (2) is slidably sleeved on the first transmission shaft (7), a first cavity (30) is formed at the bottom of the seat plate (1), the first transmission shaft (7) is rotatably arranged in the first cavity (30), and a first bevel gear (8) is fixedly sleeved on the end of the first transmission shaft (7) arranged in the first cavity (30), a first rotating shaft (28) is rotatably arranged in one side of the seat plate (1), the first rotating shaft (28) is rotatably arranged in the first cavity (30), and a second bevel gear (9) is fixedly sleeved on the end of the first rotating shaft (28) arranged in the first cavity (30), and the first bevel gear (8) is meshed with the second bevel gear (9); a first slide rod (10) is fixedly arranged in the other first slide groove (6), and another movable block (2) is slidably sleeved on the first slide rod (10).

3. The foldable footrest mechanism for an office leisure chair according to claim 1, characterized in that: A first rotating shaft (11) is rotatably provided in the two movable blocks (2), and the two mounting blocks (3) are fixedly sleeved on the two first rotating shafts (11); a plurality of plug holes (12) are provided on opposite sides of the two movable blocks (2), and the plurality of plug holes (12) are combined to form an arc; an arc-shaped plug groove (13) is provided on opposite sides of the two movable blocks (2), and the arc structure of the arc-shaped plug groove (13) is consistent with the arc structure formed by the combination of the plurality of plug holes (12); a through hole is provided in the mounting block (3), and the first locking component comprises a plug rod (14), and the plug rod (14) is slidably provided in the arc-shaped plug groove (13), and is provided through the through hole and one of the plug holes (12), so as to lock the rotating mounting block (3).

4. The foldable footrest mechanism for an office leisure chair according to claim 1, characterized in that: The mounting block (3) is provided with a second slide groove (15) along the length direction of the mounting block (3), a second transmission shaft (16) is rotatably provided in one of the second slide grooves (15), an auxiliary block (4) is slidably sleeved on the second transmission shaft (16), a second cavity (17) is further provided in the mounting block (3) corresponding to one of the second slide grooves (15), the second cavity (17) is provided above the second slide groove (15), one end of the second transmission shaft (16) is rotatably provided in the second cavity (17), and the second transmission shaft (16) is provided in the second cavity A third bevel gear (18) is fixedly sleeved at the end of the second cavity (17); a second rotating shaft (29) is rotatably penetrated on one side of the mounting block (3); the second rotating shaft (29) is rotatably penetrated into the second cavity (17); and a fourth bevel gear (19) is fixedly sleeved at the end of the second cavity (17); the third bevel gear (18) is meshed with the fourth bevel gear (19); a second slide rod (20) is fixedly sleeved in another second slide groove (15); and another auxiliary block (4) is slidably sleeved on the second slide rod (20).

5. The foldable footrest mechanism for an office leisure chair according to claim 1, characterized in that: Mounting plates (21) are fixedly provided on both sides of the lower part of each auxiliary block (4); a second rotating shaft (22) is rotatably provided between the two mounting plates (21) of the same auxiliary block (4); the two foot pedals (5) are fixedly sleeved on the two second rotating shafts (22); the second locking assembly comprises a locking plate (23) and a bolt (24); the locking plate (23) is rotatably provided on one side of one of the foot pedals (5); the bolt (24) is used to be screwed into the locking plate (23) and the other foot pedal (5), and the three are threadedly connected.

6. The foldable footrest mechanism for an office leisure chair according to claim 1, characterized in that: The third locking assembly comprises four first magnetic blocks (25), which are respectively arranged on the side of the two footrests (5) facing the seat (1) and on the side opposite to the two auxiliary blocks (4), and the first magnetic block (25) on each auxiliary block (4) is used to attract the first magnetic block (25) on the corresponding footrest (5) when the corresponding footrest (5) rotates.

7. The foldable footrest mechanism for an office leisure chair according to claim 2, characterized in that: The bottom of the seat plate (1) is also provided with two placement grooves (26), the two placement grooves (26) are respectively connected with the corresponding first slide grooves (6), the fourth locking component comprises four second magnetic blocks (27), the four second magnetic blocks (27) are respectively arranged in the two placement grooves (26) and the side walls of the two mounting blocks (3), the second magnetic block (27) in each placement groove (26) is used for attracting the second magnetic block (27) on the corresponding mounting block (3) when the corresponding mounting block (3) rotates.

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