Multi-angle adjustable foot support

Abstract

The utility model relates to the technical field of office furniture, in particular to a multi-angle adjustable foot support which comprises a seat cushion body, a flat pipe connected to the seat cushion body, a rotary connecting piece fixedly connected to one end, far away from the seat cushion body, of the flat pipe, a foot support surface frame hinged to the rotary connecting piece and a locking device. And a mounting groove is formed in the end part of the rotary connecting piece. The rotating shaft sequentially penetrates through the foot support face frame and the rotating connecting piece, and a reset piece is arranged on one side of the rotating tooth. One end of each meshing tooth is rotationally arranged on the inner side wall of the corresponding mounting groove, and the other end of each meshing tooth is in meshing connection with the peripheral side of the corresponding rotating tooth. The foot support surface frame can be automatically locked in the rotating adjusting process through the rotating teeth and the meshing teeth, when the foot support surface frame is adjusted to the highest point, automatic unlocking of the rotating teeth and the meshing teeth can be achieved through the reset piece, so that the rotating teeth and the foot support surface frame can return to the initial positions, and use is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of office furniture technology, and in particular to a multi-angle adjustable footrest. Background Technology

[0002] A footrest is an essential piece of furniture in both living and working environments. With social development and continuous technological advancements, the variety of chairs has increased to meet diverse needs, allowing people to engage in daily activities in a comfortable environment. Normally, when sitting in a chair, a person's feet can only rest on the ground or dangle, which can cause significant discomfort for those who work sitting down, as maintaining one posture for extended periods can be extremely uncomfortable. Due to the limitations of chair structure, adjusting posture often doesn't prevent discomfort. Some existing chairs are equipped with footrests, allowing users to place their feet on them and maintain a more comfortable posture. Current footrests are typically opened by manually pressing a locking mechanism and then released to secure them. This method requires considerable pressure, is cumbersome to operate, and is inconvenient to use. Utility Model Content

[0003] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a multi-angle adjustable footrest.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A multi-angle adjustable footrest includes a seat cushion body, a flat tube connected to the seat cushion body, a rotating connector fixedly connected to the flat tube at one end away from the seat cushion body, a footrest frame hinged to the rotating connector, and a locking device for locking the footrest frame and the rotating connector. The rotating connector has a mounting groove at its end. The locking device includes a rotating shaft, rotating teeth, engaging teeth, and a resetting element. The rotating shaft passes sequentially through the footrest frame and the rotating connector. The rotating teeth are fixedly connected to the rotating shaft. The resetting element is located on one side of the rotating teeth and is fitted onto the rotating teeth. The rotating teeth, engaging teeth, and resetting element are all located within the mounting groove. The resetting element separates the engaging teeth from the rotating teeth to reset the rotating teeth. One end of the engaging teeth is rotatably mounted on the inner wall of the mounting groove, and the other end of the engaging teeth meshes with the circumference of the rotating teeth.

[0006] By adopting the above technical solution, the footrest frame is rotatably connected to the flat tube via a rotating connector, allowing its position to be adjusted according to usage. Specifically, the footrest frame automatically locks itself during adjustment via rotating teeth and engaging teeth. When the footrest frame is adjusted to its highest point, a reset mechanism automatically unlocks the teeth and teeth, returning them to their initial position, making it very convenient to use. This multi-angle adjustable footrest can both retract well and be concealed under the seat cushion, and extend a long distance. After extension, the footrest frame can be adjusted to the optimal support angle according to the user's actual needs, relieving pressure on the legs and hips and providing a lighter, more comfortable, and more relaxed rest, embodying ergonomic principles.

[0007] Furthermore, the reset component has a rotating groove and a snap-fit ​​platform adjacent to each other along its circumference on the side near the rotating tooth. The distance between the snap-fit ​​platform and its axis is greater than the distance from the bottom of the rotating groove to its axis. When the other end of the biting tooth is located in the rotating groove, the biting tooth engages with the rotating tooth; when the other end of the biting tooth abuts against the snap-fit ​​platform, the biting tooth separates from the rotating tooth, facilitating the adjustment of the footrest frame to reset the rotating tooth via the rotating shaft, making operation simpler.

[0008] Furthermore, the reset component includes a rotating part and a reset part. The rotating part is fitted onto the rotating shaft, and the reset part is disposed between the rotating tooth and the rotating part. The circumferential side of the reset part is provided with the rotating groove and the engaging platform. A limiting channel is provided inside the reset part. A protruding limiting block is provided on the side of the rotating tooth facing the reset part, and the limiting block is slidably disposed within the limiting channel. A stepped part is provided at the position corresponding to the rotating groove in the limiting channel. The limiting block and the stepped part abut against each other to allow the rotating tooth to drive the reset component to rotate. The structure is compact, the linkage between the structures is better, and the reset efficiency is improved.

[0009] Furthermore, the limiting block is designed with a fan-shaped structure to make reasonable use of space and improve load-bearing strength.

[0010] Furthermore, the outer circumference of the rotating shaft is configured as an external hexagonal nut structure, and the through hole of the rotating tooth is correspondingly configured as an internal hexagonal structure, which is simple in structure, convenient in transmission, and lower in cost.

[0011] Furthermore, the locking device also includes a pin and a torsion spring. The middle part of the engagement tooth is rotatably disposed in the mounting groove via the pin, and the other end of the engagement tooth is fixedly connected to one end of the torsion spring. The other end of the torsion spring abuts against the groove wall of the mounting groove. The torsion spring causes the other end of the engagement tooth to fit tightly against the rotating tooth, thereby improving the stability of the structural linkage.

[0012] Furthermore, the rotating connector has a locking block on the side facing the footrest frame, and the footrest frame has a locking groove corresponding to the locking block position. The locking block is locked in the locking groove, which facilitates fixing the footrest frame and makes it more convenient to use.

[0013] Furthermore, the flat tube is made of iron, and a magnetic element is provided on the side of the footrest that contacts the flat tube. The magnetic element is magnetically connected to the flat tube, making it more secure when folded and retracted.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] This utility model's footrest frame is rotatably connected to a flat tube via a rotating connector, allowing its position to be adjusted according to usage. The footrest frame automatically locks itself during adjustment via rotating teeth and engaging teeth. When the footrest frame is adjusted to its highest point, a reset mechanism automatically unlocks the teeth and teeth, returning them to their initial position, making it very convenient to use. This multi-angle adjustable footrest can be neatly retracted and concealed under the seat cushion, while also extending a considerable distance. When extended, the footrest frame can be adjusted to the optimal support angle according to the user's needs, relieving pressure on the legs and hips and providing a lighter, more comfortable, and more relaxed rest, embodying ergonomic principles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the multi-angle adjustable footrest of this utility model.

[0017] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the multi-angle adjustable footrest of this utility model.

[0018] Figure 3 This is an exploded structural diagram of an embodiment of the multi-angle adjustable footrest of this utility model.

[0019] Figure 4 This is a front view of an embodiment of the multi-angle adjustable footrest of this utility model.

[0020] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of AA.

[0021] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of BB.

[0022] Figure 7 This is a front view of one embodiment of the locking device of the multi-angle adjustable footrest of this utility model when locked.

[0023] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure of CC.

[0024] Figure 9 This is a front view of one embodiment of the locking device of the multi-angle adjustable footrest of this utility model when locked.

[0025] Figure 10 This is a cross-sectional structural diagram of an embodiment of the locking device of the multi-angle adjustable footrest of this utility model when it is unlocked.

[0026] Figure 11 This is an exploded structural diagram of an embodiment of the rotating teeth, engagement teeth, and reset component of the multi-angle adjustable footrest of this utility model.

[0027] Figure 12 This is a schematic diagram of the hidden storage structure of an embodiment of the multi-angle adjustable footrest of this utility model.

[0028] Figure 13 This is a schematic diagram of the usage state of an embodiment of the multi-angle adjustable footrest of this utility model.

[0029] Explanation of the reference numerals in the figure:

[0030] 1. Multi-angle adjustable footrest; 2. Seat cushion body; 3. Flat tube; 4. Rotary connector; 41. Mounting slot; 42. Locking block; 5. Footrest surface frame; 51. Locking slot; 52. Magnetic suction; 53. Fixing iron plate; 6. Locking device; 61. Rotating shaft; 62. Rotating tooth; 621. Limiting block; 63. Engaging tooth; 64. Reset component; 641. Rotating groove; 642. Locking platform; 643. Rotating part; 644. Reset part; 645. Limiting channel; 646. Stepped part; 65. Pin; 66. Torsion spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0032] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0033] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0034] The following is in conjunction with the appendix Figure 1-13 The embodiments of this utility model will be described in further detail below.

[0035] Multi-angle adjustable footrest 1, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 As shown, it includes a seat cushion body 2, a flat tube 3 connected to the seat cushion body 2, a rotating connector 4 fixedly connected to the flat tube 3 at one end away from the seat cushion body 2, a footrest frame 5 hinged to the rotating connector 4, and a locking device 6 for locking the footrest frame 5 and the rotating connector 4. The end of the rotating connector 4 is provided with a mounting groove 41. The locking device 6 includes a rotating shaft 61, a rotating tooth 62, an engaging tooth 63, and a resetting member 64. The rotating shaft 61 passes sequentially through the footrest frame 5 and the rotating connector 4. The rotating tooth 62 is fixedly connected to the rotating shaft 61, and a resetting member 64 is provided on one side of the rotating tooth 62, with the resetting member 64 fitted onto the rotating tooth 62. Rotating tooth 62, biting tooth 63 and resetting member 64 are all disposed in mounting groove 41. Resetting member 64 is used to separate biting tooth 63 from rotating tooth 62 so that rotating tooth 62 is reset. One end of biting tooth 63 is rotatably disposed on the inner side wall of mounting groove 41, and the other end of biting tooth 63 is engaged with the circumference of rotating tooth 62.

[0036] The footrest holder 5 is rotatably connected to the flat tube 3 via a rotating connector 4, allowing its position to be adjusted according to usage. The footrest holder 5 automatically locks itself during adjustment via rotating teeth 62 and engaging teeth 63. When the footrest holder 5 reaches its highest point, a reset component 64 automatically unlocks the rotating teeth 62 and engaging teeth 63, returning both to their initial positions. This design is very convenient to use. Please refer to [reference needed]. Figure 12 , Figure 13 The multi-angle adjustable footrest 1 can be retracted and hidden under the seat cushion, and can also be extended over a long distance. After extension, the footrest surface frame 5 can be adjusted to the optimal support angle according to the user's actual needs, relieving pressure on the legs and buttocks and making the user more relaxed, comfortable and at ease when resting, reflecting the concept of ergonomics.

[0037] In this embodiment, please refer to Figure 3-11 The reset component 64 has a rotating groove 641 and a locking platform 642 adjacent to each other along its circumference on the side near the rotating tooth 62. The distance between the locking platform 642 and its axis is greater than the distance from the bottom of the rotating groove 641 to its axis. When the other end of the biting tooth 63 is located in the rotating groove 641, the biting tooth 63 and the rotating tooth 62 are engaged; when the other end of the biting tooth 63 abuts against the locking platform 642, the biting tooth 63 and the rotating tooth 62 are separated, making it easier to adjust the footrest bracket 5 to drive the rotating tooth 62 to reset via the rotating shaft 61, thus simplifying the operation. Both the locking platform 642 and the rotating groove 641 are arc-shaped structures, with the arc of the rotating groove 641 being greater than the arc of the locking platform 642.

[0038] In some embodiments, please refer to Figure 8 , Figure 10 , Figure 11 The reset component 64 includes a rotating part 643 and a reset part 644. The rotating part 643 is fitted onto a rotating shaft 61, and the reset part 644 is disposed between the rotating tooth 62 and the rotating part 643. A rotating groove 641 and a locking platform 642 are provided on the circumferential side of the reset part 644. A limiting channel 645 is provided inside the reset part 644. A protruding limiting block 621 is provided on the side of the rotating tooth 62 facing the reset part 644, and the limiting block 621 is slidably disposed within the limiting channel 645. A stepped part 646 is provided at the position corresponding to the rotating groove 641 in the limiting channel 645. The limiting block 621 and the stepped part 646 abut against each other, causing the rotating tooth 62 to drive the reset component 64 to rotate. The structure is compact, the linkage between the structures is better, and the reset efficiency is improved.

[0039] Preferably, the limiting block 621 is configured as a fan-shaped structure to make reasonable use of space and improve load-bearing strength. Specifically, the limiting block 621 can be set at one of the outer corners of the rotating shaft 61, and the inner surface of the limiting block 621 is in contact with the outer surface of the rotating tooth 62 to improve the load-bearing strength of the limiting block 621.

[0040] Preferably, the outer circumference of the rotating shaft 61 is configured as an external hexagonal nut structure, and the through hole of the rotating tooth 62 is configured as an internal hexagonal structure, which facilitates the foot support frame 5 to drive the rotating shaft 61 and the rotating tooth 62 to move together. The structure is simple, the transmission is convenient, and the cost is lower.

[0041] In some embodiments, please refer to Figure 7 , Figure 8 , Figure 10 The locking device 6 also includes a pin 65 and a torsion spring 66. The middle part of the engagement tooth 63 is rotatably mounted in the mounting groove 41 via the pin 65. The other end of the engagement tooth 63 is fixedly connected to one end of the torsion spring 66. The other end of the torsion spring 66 abuts against the groove wall of the mounting groove 41. The torsion spring 66 makes the other end of the engagement tooth 63 tightly fit against the rotating tooth 62, thereby improving the stability of the structural linkage.

[0042] For preferred options, please refer to [the provided text]. Figure 1 , Figure 2 The rotating connector 4 has a locking block 42 on the side facing the footrest frame 5. The footrest frame 5 has a slot 51 corresponding to the locking block 42. The locking block 42 is locked in the slot 51, which makes it easier to fix the footrest frame 5 and makes it more convenient to use.

[0043] Preferably, the flat tube 3 is made of iron, and a magnetic component 52 is provided on the side of the footrest 5 that contacts the flat tube 3. When hidden and stored, the magnetic component 52 is magnetically connected to the flat tube 3, making it more secure when folded and retracted.

[0044] Specifically, a strong magnetic fixing iron plate 53 is fixed to one side of the card slot 51 with screws, and the magnetic suction piece 52 is fixed to the fixing iron plate 53, which makes installation convenient.

[0045] In use, the footrest frame 5 is flipped over. The footrest frame 5, along with the rotating shaft 61 inserted in the footrest frame 5 and the rotating teeth 62 mounted on the rotating shaft 61, rotate together. The engaging teeth 63, under the action of the torsion spring 66, tightly grip and engage the rotating teeth 62. When the rotating teeth 62 rotate to a set angle, the limiting block 621 on the rotating teeth 62 abuts against the step portion 646, thereby driving the reset member 64 to rotate. During the rotation of the reset member 64, the other end of the engaging teeth 63 moves from the rotating groove 641 to the locking platform 642. Due to the height difference between the rotating groove 641 and the locking platform 642, the engaging teeth 63 open and stop on the preset locking platform 642 of the reset member 64. At this time, the engaging teeth 63 completely disengage from the rotating teeth 62, and the footrest frame 5 is at the highest adjustment position.

[0046] When storing, rotate the footrest frame 5 to its maximum angle, then rotate it in the opposite direction. At this time, the limiting block 621 slides in the limiting channel 645 in the opposite direction, and abuts against the step portion 646 on the other side of the limiting channel 645, so that the engaging platform 642 separates from the engaging tooth 63, and moves the position of the rotating groove 641 to the other end of the engaging tooth 63. Under the force of the torsion spring 66, the engaging tooth 63 re-engages with the rotating tooth 62. The reset piece 64 and the engaging tooth 63 return to their original state, the footrest frame 5 returns to its original folded state, and is stored under the seat cushion body. The locking block 42 is locked in the locking groove 51, and the magnetic suction piece 52 is attracted to the flat tube 3. The two cooperate to fix the footrest frame 5 and prevent it from falling off.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A multi-angle adjustable footrest, characterized in that, The device includes a seat cushion body (2), a flat tube (3) connected to the seat cushion body (2), a rotating connector (4) fixedly connected to the flat tube (3) at one end away from the seat cushion body (2), a footrest frame (5) hinged to the rotating connector (4), and a locking device (6) for locking the footrest frame (5) and the rotating connector (4); the end of the rotating connector (4) is provided with a mounting groove (41); the locking device (6) includes a rotating shaft (61), rotating teeth (62), engaging teeth (63), and a resetting member (64); the rotating shaft (61) passes sequentially through the footrest frame (5) and the rotating connector (4). 4) The rotating tooth (62) is fixedly connected to the rotating shaft (61). The reset member (64) is provided on one side of the rotating tooth (62). The reset member (64) is fitted onto the rotating tooth (62). The rotating tooth (62), the biting tooth (63) and the reset member (64) are all provided in the mounting groove (41). The reset member (64) is used to separate the biting tooth (63) from the rotating tooth (62) so that the rotating tooth (62) is reset. One end of the biting tooth (63) is rotatably disposed on the inner side wall of the mounting groove (41). The other end of the biting tooth (63) is engaged with the circumference of the rotating tooth (62).

2. The multi-angle adjustable footrest according to claim 1, characterized in that, The reset member (64) has a rotating groove (641) and a snap-fit ​​platform (642) adjacent to each other along its circumference on the side near the rotating tooth (62); the distance between the snap-fit ​​platform (642) and its axis is greater than the distance from the bottom of the rotating groove (641) to its axis; when the other end of the biting tooth (63) is located in the rotating groove (641), the biting tooth (63) and the rotating tooth (62) are engaged; when the other end of the biting tooth (63) abuts against the snap-fit ​​platform (642), the biting tooth (63) and the rotating tooth (62) are separated.

3. The multi-angle adjustable footrest according to claim 2, characterized in that, The reset component (64) includes a rotating part (643) and a reset part (644); the rotating part (643) is fitted onto the rotating shaft (61), and the reset part (644) is disposed between the rotating tooth (62) and the rotating part (643). The circumferential side of the reset part (644) is provided with the rotating groove (641) and the snap-fit ​​platform (642); the interior of the reset part (644) is provided with a limiting channel (645); the rotating tooth (62) facing the reset part (644) is provided with a protruding limiting block (621), and the limiting block (621) is slidably disposed in the limiting channel (645); the limiting channel (645) and the rotating groove (641) are provided with a step part (646), and the limiting block (621) and the step part (646) are in contact and connected to each other so that the rotating tooth (62) drives the reset component (64) to rotate.

4. The multi-angle adjustable footrest according to claim 3, characterized in that, The limiting block (621) is configured as a fan-shaped structure.

5. The multi-angle adjustable footrest according to claim 1, characterized in that, The outer circumference of the rotating shaft (61) is configured as an external hexagonal nut structure, and the through hole of the rotating tooth (62) is configured as an internal hexagonal structure.

6. The multi-angle adjustable footrest according to claim 1, characterized in that, The locking device (6) further includes a pin (65) and a torsion spring (66); the middle part of the engagement tooth (63) is rotatably disposed in the mounting groove (41) through the pin (65), the other end of the engagement tooth (63) is fixedly connected to one end of the torsion spring (66), the other end of the torsion spring (66) abuts against the groove wall of the mounting groove (41), and the torsion spring (66) makes the other end of the engagement tooth (63) tightly adhere to the rotating tooth (62).

7. The multi-angle adjustable footrest according to claim 1, characterized in that, The rotating connector (4) has a locking block (42) on the side facing the footrest frame (5), and the footrest frame (5) has a slot (51) corresponding to the locking block (42), and the locking block (42) is locked in the slot (51).

8. The multi-angle adjustable footrest according to claim 1, characterized in that, The flat tube (3) is made of iron. A magnetic suction element (52) is provided on the side of the footrest frame (5) that contacts the flat tube (3). The magnetic suction element (52) is magnetically connected to the flat tube (3).

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