Recovery mechanism for a chair

Abstract

The utility model discloses a kind of recovery mechanism of chair, including at least two support columns, the lateral side of support column is provided with support plate, the opposite two outer sides of support plate one end are all set with rotary groove, rotary groove is rotatably matched with rotary disc, the side of rotary disc is provided with rotating plate, one seat plate is installed between two support columns, corresponding two rotating plates between are installed with one seat plate;Rotary disc one side rotatably cooperates with rotating bearing, bearing groove corresponding with rotating bearing is arranged in rotary groove, support assembly is arranged between rotary disc and rotary groove, the side of rotary disc is provided with limit rod.The utility model is set to rotary disc, can make rotary disc enter corresponding rotary groove, make rotating bearing enter bearing groove, so that limit rod can limit the rotation of rotary disc, make support assembly support rotary disc, improve the stability of rotary disc overall while being convenient for installation splicing positioning.

Description

Technical Field

[0001] This utility model relates to the field of chair technology, specifically to a chair's return mechanism. Background Technology

[0002] Folding desks and chairs are a common type of desk and chair used in classrooms, meeting rooms, and other places. When no one is sitting on them, the weight of the seat can cause them to fold backward, which not only reduces the space occupied in the aisle, but also reduces the amount of dust adhering to the surface of the seat.

[0003] Currently, these chairs are widely installed and used in classrooms. The chair's return mechanism is the most cumbersome to assemble, with a complex structure that is prone to instability. Furthermore, the support frame used for installation is usually a single unit, which is inconvenient to disassemble and maintain after installation. If a component is damaged, the entire support frame needs to be disassembled and replaced, which is wasteful. There is an urgent need to design a chair return mechanism to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a return mechanism for a chair to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A chair return mechanism includes at least two support columns, with support plates arranged around the periphery of each support column. Rotating grooves are formed on opposite outer sides of one end of each support plate, and a rotating disk is rotatably fitted within each rotating groove. A rotating plate is provided on one side of each rotating disk. A seat plate is installed between the two support columns, and a seat plate is installed between corresponding rotating plates. A rotating bearing is rotatably fitted on one side of the rotating disk, and a bearing groove corresponding to the rotating bearing is provided within the rotating groove. A support assembly is provided between the rotating disk and the rotating groove. A limit rod is provided on one side of the rotating disk, and a limit groove and a buffer pad corresponding to the limit rod are provided within the rotating groove. One end of each support plate has a slot that slides around the periphery of each support column. Multiple fixing bolts corresponding to the slot are provided on one side of each support plate, and these fixing bolts penetrate the support plate and the support column.

[0007] Furthermore, mounting brackets are installed on both sides of the two support columns, an extension rod is provided on one side of the mounting bracket, a handrail is installed on the extension rod, an extension plate is provided on one side of the mounting bracket, and the back plate is installed between the two extension plates.

[0008] Furthermore, a mounting plate is provided at the bottom of the support column, and mounting holes are provided on the mounting plate.

[0009] Furthermore, the support assembly includes an irregularly shaped support groove disposed in the rotating groove, an irregularly shaped support block corresponding to the irregularly shaped support groove, and a support ring disposed on one side of the irregularly shaped support block, wherein the rotating disk rotates and engages within the support ring.

[0010] Furthermore, a slot is provided in the rotating groove, and a block is provided on one side of the buffer pad. The slot and the block engage with each other, and the limiting groove is arc-shaped.

[0011] Furthermore, a baffle is provided on one side of the rotating groove, and a plurality of insert rods are provided on one side of the baffle. The rotating groove is provided with slots corresponding to the plurality of insert rods.

[0012] In the above technical solution, the chair return mechanism provided by this utility model has the following beneficial effects:

[0013] The rotating disc allows it to enter the corresponding rotating groove, and the rotating bearing to enter the bearing groove. This allows the limiting rod to limit the rotation of the rotating disc, and the support assembly to support the rotating disc. This facilitates installation, splicing, and positioning, while improving the overall stability of the rotating disc. The slots allow for the removal of corresponding fixing bolts as needed, allowing the support plate to slide out of the periphery of the support column. This enables the disassembly of individual support plate components without disassembling the entire support column, facilitating the replacement of individual components. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the return mechanism of a chair according to the present invention.

[0016] Figure 2 This is a schematic diagram of the support column structure provided for an embodiment of the return mechanism of a chair according to the present invention.

[0017] Figure 3 This is a schematic diagram of the rotating disk structure provided for an embodiment of the return mechanism of a chair according to the present invention.

[0018] Figure 4 This is a schematic diagram of the rotating groove structure provided for an embodiment of the return mechanism of a chair according to the present invention.

[0019] 1. Support column; 2. Support plate; 3. Rotating groove; 4. Rotating disk; 5. Rotating plate; 6. Back plate; 7. Seat plate; 8. Rotating bearing; 9. Bearing groove; 10. Limiting rod; 11. Limiting groove; 12. Buffer pad; 13. Groove; 14. Fixing bolt; 15. Mounting bracket; 16. Extension rod; 17. Handrail; 18. Extension plate; 19. Mounting plate; 20. Mounting hole; 21. Irregular support groove; 22. Irregular support block; 23. Support ring; 24. Slot; 25. Locking block; 26. Baffle; 27. Insert rod; 28. Slot. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown in the figure, this utility model provides a chair return mechanism.

[0022] The device includes at least two support columns 1. Support plates 2 are provided around the periphery of the support columns 1. Rotating grooves 3 are provided on the two opposite outer sides of one end of the support plates 2. A rotating disk 4 is rotatably fitted in the rotating grooves 3. A rotating plate 5 is provided on one side of the rotating disk 4. A seat plate 7 is installed between the two support columns 1. A seat plate 7 is installed between the two corresponding rotating plates 5. A rotating bearing 8 is rotatably fitted on one side of the rotating disk 4. A bearing groove 9 corresponding to the rotating bearing 8 is provided in the rotating groove 3. A support assembly is provided between the rotating disk 4 and the rotating groove 3. A limit rod 10 is provided on one side of the rotating disk 4. A limit groove 11 and a buffer pad 12 corresponding to the limit rod 10 are provided in the rotating groove 3. A slot 13 is provided at one end of the support plate 2. The slot 13 is slidably fitted with the periphery of the support column 1. Multiple fixing bolts 14 corresponding to the slot 13 are provided on one side of the support plate 2. The fixing bolts 14 penetrate the support plate 2 and the support column 1.

[0023] Reference Figure 2 In this embodiment, mounting brackets 15 are installed on both sides of the two support columns 1. An extension rod 16 is provided on one side of the mounting bracket 15, and a handrail 17 is installed on the extension rod 16. An extension plate 18 is provided on one side of the mounting bracket 15, and a back plate 6 is installed between the two extension plates 18. The mounting brackets 15 can be used to install and fix the back plate 6 and the handrail 17, so that there will be no conflict when installing a back plate 6 between two adjacent support columns 1 and installing a handrail 17 on two opposite extension plates 18, and disassembly and maintenance can be performed.

[0024] Reference Figure 2In this embodiment, the support column 1 has a mounting plate 19 at its bottom, and mounting holes 20 are provided on the mounting plate 19. The mounting plate 19 can be made to fit against the ground, and bolts can be passed through the mounting holes 20 to fix the mounting plate 19. After fixing, the mounting holes 20 can be covered and sealed.

[0025] Reference Figure 3 The support assembly in this embodiment includes a shaped support groove 21 disposed within the rotating groove 3, a shaped support block 22 corresponding to the shaped support groove 21, and a support ring 23 disposed on one side of the shaped support block 22. The rotating disk 4 is rotatably fitted within the support ring 23. By using the shaped support block 22, during the installation of the rotating disk 4, the shaped support block 22 can be aligned and inserted into the shaped support groove 21, allowing the support ring 23 to support the rotating disk 4. Simultaneously, the shaped support block 22 can limit the movement of the limiting rod 10, positioning the rotating disk 4 while preventing incorrect installation.

[0026] Reference Figure 3 In this embodiment, a slot 24 is provided in the rotating groove 3, and a block 25 is provided on one side of the buffer pad 12. The slot 24 and the block 25 engage with each other, and the limiting groove 11 is arc-shaped. Through the slot 24, the block 25 can be removed from the slot 24, and the buffer pad 12 can be disassembled and replaced. After the limiting rod 10 enters the limiting groove 11, the arc shape of the limiting groove 11 prevents the limiting rod 10 from wobbling back and forth.

[0027] Reference Figure 4 In this embodiment, a baffle 26 is provided on one side of the rotating groove 3, and a plurality of insert rods 27 are provided on one side of the baffle 26. The rotating groove 3 is provided with slots 28 corresponding to the plurality of insert rods 27. By using the baffle 26, when the last support column 1 does not need to continue assembling the seat, the baffle 26 is used to cover the last rotating groove 3, and the insert rods 27 are aligned with the slots 28, so that the baffle 26 is fixed in the rotating groove 3.

[0028] Working principle: In use, first install the support column 1 in the corresponding position, then align the groove 13 of the support plate 2 with one end of the support column 1, move the support plate 2 along the periphery of the support column 1 to the corresponding position, and then use the fixing bolt 14 to pass through the support plate 2 and the support column 1 for fixation. After installing multiple support columns 1 in sequence, the back plate 6 can be installed between each two adjacent support columns 1. Then, align the rotating bearing 8 of the rotating disk 4 with the bearing groove 9 and install it so that the rotating bearing 8 enters the bearing groove 9 and the rotating disk 4 enters the rotating groove 3. The support assembly will support the rotating disk 4. The limiting groove 11 limits the rotation of the rotating disk 4 through the limiting rod 10. The buffer pad 12 can buffer and reduce noise for the limiting rod 10. Then, install the seat plate 7 between two adjacent rotating plates 5 for use. The rotating grooves 3 on both sides of the support plate 2 allow the chairs to be installed and spliced ​​in rows.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A return mechanism of a chair comprising at least two support columns (1), characterized in that, A support plate (2) is provided around the periphery of the support column (1). Rotating grooves (3) are provided on both opposite outer sides of one end of the support plate (2). A rotating disk (4) is rotatably fitted within the rotating grooves (3). A rotating plate (5) is provided on one side of the rotating disk (4). A seat plate (7) is installed between two support columns (1), and a seat plate (7) is installed between corresponding two rotating plates (5). A rotating bearing (8) is rotatably fitted on one side of the rotating disk (4). A bearing groove (9) corresponding to the rotating bearing (8) is provided within the rotating grooves (3). A support assembly is provided between the moving disk (4) and the rotating groove (3). A limit rod (10) is provided on one side of the rotating disk (4). A limit groove (11) and a buffer pad (12) corresponding to the limit rod (10) are provided in the rotating groove (3). A slot (13) is provided at one end of the support plate (2). The slot (13) slides with the periphery of the support column (1). A plurality of fixing bolts (14) corresponding to the slot (13) are provided on one side of the support plate (2). The fixing bolts (14) penetrate the support plate (2) and the support column (1).

2. A return mechanism for a chair according to claim 1, wherein Mounting brackets (15) are installed on both sides of the two support columns (1). An extension rod (16) is provided on one side of the mounting bracket (15). A handrail (17) is installed on the extension rod (16). An extension plate (18) is provided on one side of the mounting bracket (15).

3. A return mechanism for a chair according to claim 1, wherein The bottom of the support column (1) is provided with an installation plate (19), and the installation plate (19) is provided with an installation hole (20).

4. A return mechanism for a chair according to claim 1, wherein The support assembly includes an irregular support groove (21) disposed in the rotating groove (3), an irregular support block (22) corresponding to the irregular support groove (21), and a support ring (23) disposed on one side of the irregular support block (22). The rotating disk (4) rotates and fits in the support ring (23).

5. A return mechanism for a chair as defined in claim 1, wherein The rotating groove (3) is provided with a slot (24), and a block (25) is provided on one side of the buffer pad (12). The slot (24) and the block (25) engage with each other. The limiting groove (11) is arc-shaped.

6. A return mechanism for a chair according to claim 1, wherein, A baffle (26) is provided on one side of the rotating groove (3), and a plurality of insert rods (27) are provided on one side of the baffle (26). A slot (28) corresponding to the plurality of insert rods (27) is provided in the rotating groove (3).

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