Folding and storing mechanism of a ladder chair

Abstract

The application provides a ladder chair folding storage mechanism and relates to the technical field of ladder chairs, which comprises a connecting frame, a connecting shaft is arranged on the connecting frame, a table and chair plate is connected to the connecting shaft, a fixing structure is arranged between the bottom of the table and chair plate and the connecting frame, the fixing structure comprises a locking piece arranged at the bottom of the table and chair plate, the locking piece comprises a limiting rod, one end of the limiting rod is inserted into a limiting ring, a second supporting plate is fixedly installed at the top of the limiting ring, and both ends of the second supporting plate are fixedly connected with the connecting frame. The application provides limiting for the table and chair plate through the insertion of the limiting rod and the limiting ring, can reduce the accidental rotation of the table and chair plate around the connecting shaft due to improper sitting posture (for example, sitting too close to the inner side) of the user during use, reduces the risk of falling of the user, and improves the safety during use.

Description

Technical Field

[0001] This utility model relates to the field of tiered chair technology, and more specifically, to a folding and storage mechanism for tiered chairs. Background Technology

[0002] In modern office and meeting settings, meeting chairs are common seating furniture, and their space utilization efficiency and stability are of great concern. Currently, some meeting chairs on the market use a single-axis rotating structure to achieve the folding function of the seat board. This design allows the seat board to rotate around the connecting axis to a vertical position when space needs to be saved, thereby reducing space occupation; and when in use, the seat board can be rotated to a horizontal position to meet the user's sitting posture needs.

[0003] However, existing conference chairs with a single-axis rotating structure have significant drawbacks. When the seat is in a horizontal position, it relies solely on a fixed support plate near the connecting shaft for support. Due to the limitations of this support method, when the user sits too close to the inside of the seat, the inner area lacks effective auxiliary support. In this situation, the seat may rotate unexpectedly around the connecting shaft due to uneven force on one side, posing a safety hazard. Therefore, we have made improvements by proposing a folding and storage mechanism for stepped chairs. Utility Model Content

[0004] This utility model provides a folding and storage mechanism for a tiered chair, including a connecting frame. A connecting shaft is provided on the connecting frame, and a table and chair board is connected to the connecting shaft. A fixing structure is provided between the bottom of the table and chair board and the connecting frame. The fixing structure includes a locking component provided at the bottom of the table and chair board. The locking component includes a limiting rod. A limiting ring is inserted into one end of the limiting rod. A second support plate is fixedly installed on the top of the limiting ring. Both ends of the second support plate are fixedly connected to the connecting frame.

[0005] As a preferred technical solution of this application, the outer surface of the limiting rod is also fitted with an arc-shaped plate. The arc-shaped plate is located on the side of the second support plate away from the connecting shaft. Both sides of the arc-shaped plate are fixedly connected to the first support plate. The end of the first support plate away from the arc-shaped plate is fixedly connected to the connecting frame.

[0006] As a preferred technical solution of this application, both the first support plate and the second support plate are used to support the table and chair panels.

[0007] As a preferred technical solution of this application, the locking component further includes a protective cover, which is installed on the bottom of the table and chair board by bolts. The top of the protective cover has a groove, and the limiting rod passes through the groove.

[0008] As a preferred technical solution of this application, the outer surface of the limiting rod is fixedly fitted with a slide seat located inside the protective cover, and the slide seat is slidably connected to the bottom of the table and chair board.

[0009] As a preferred technical solution of this application, a fixing seat is inserted and connected to the outer surface of the limiting rod, and the fixing seat is fixedly installed on the bottom of the table and chair board.

[0010] As a preferred technical solution of this application, a connecting rod is fixedly installed on the side of the slide near the fixed seat, and the end of the connecting rod away from the fixed seat passes through the fixed seat and the protective cover and extends to the outside of the protective cover.

[0011] As a preferred technical solution of this application, a spring is sleeved on the outer surface of the connecting rod, and the spring is located between the fixed seat and the sliding seat.

[0012] As a preferred technical solution of this application, the end of the limiting rod away from the limiting ring is connected to a handle.

[0013] As a preferred technical solution of this application, a backrest is also installed on the connecting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] This application provides a limit for the table and chair board by inserting a limit rod and a limit ring. This reduces the possibility of the table and chair board accidentally rotating around the connecting shaft during use due to improper user posture (such as sitting too close to the inside), thus reducing the risk of users falling and improving safety during use. Attached Figure Description

[0017] Figure 1 A structural diagram of the folding and storage mechanism for the tiered chair provided in this application;

[0018] Figure 2 A bottom view of the folding and storage mechanism for the tiered chair provided in this application;

[0019] Figure 3 A partial structural diagram of the folding and storage mechanism for the tiered chair provided in this application;

[0020] Figure 4 This is a schematic diagram of the internal structure of the protective cover provided in this application;

[0021] Figure 5 A structural schematic diagram of the arc-shaped plate and the limiting ring provided in this application;

[0022] Figure 6 This is a schematic diagram of the folded structure of the table and chair panels provided in this application.

[0023] The image shows:

[0024] 1. Connecting frame; 101. Connecting shaft; 2. Table and chair board; 3. Backrest; 4. Fixing structure; 401. First support plate; 402. Arc plate; 403. Second support plate; 404. Limiting ring; 405. Protective cover; 406. Limiting rod; 407. Slide seat; 408. Fixed seat; 409. Connecting rod; 410. Spring; 411. Handle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] For an example, please refer to... Figures 1-5 A folding and storage mechanism for a tiered chair includes a connecting frame 1, a connecting shaft 101 on the connecting frame 1, a table and chair board 2 connected to the connecting shaft 101, and a fixing structure 4 between the bottom of the table and chair board 2 and the connecting frame 1. The fixing structure 4 includes a locking component at the bottom of the table and chair board 2, and the locking component includes a limiting rod 406. One end of the limiting rod 406 is inserted into a limiting ring 404, and a second support plate 403 is fixedly installed on the top of the limiting ring 404. Both ends of the second support plate 403 are fixedly connected to the connecting frame 1. By inserting the limiting rod 406 into the limiting ring 404, the table and chair board 2 is limited, which can reduce the possibility of the table and chair board 2 accidentally rotating around the connecting shaft 101 due to improper sitting posture of the user (such as sitting too close to the inside), thereby reducing the risk of the user falling and improving safety during use.

[0029] Furthermore, an arc-shaped plate 402 is also fitted on the outer surface of the limiting rod 406. The arc-shaped plate 402 is located on the side of the second support plate 403 away from the connecting shaft 101. The first support plate 401 is fixedly connected to both sides of the arc-shaped plate 402. The end of the first support plate 401 away from the arc-shaped plate 402 is fixedly connected to the connecting frame 1. The first support plate 401 and the second support plate 403 are both used to support the table and chair board 2 to improve the stability of the table and chair board 2 during use.

[0030] Furthermore, the locking mechanism also includes a protective cover 405, which is bolted to the bottom of the table and chair board 2. The top of the protective cover 405 has a groove, and the limiting rod 406 passes through the groove. The protective cover 405 can protect the components located therein.

[0031] Furthermore, a slide block 407 located inside the protective cover 405 is fixedly sleeved on the outer surface of the limiting rod 406, and the slide block 407 is slidably connected to the bottom of the table and chair board 2. During the pulling of the limiting rod 406, the slide block 407 moves with the limiting rod 406.

[0032] Furthermore, a fixing seat 408 is inserted and connected to the outer surface of the limiting rod 406. The fixing seat 408 is fixedly installed at the bottom of the table and chair board 2 and can support the limiting rod 406.

[0033] Furthermore, a connecting rod 409 is fixedly installed on the side of the slide 407 near the fixed seat 408. The end of the connecting rod 409 away from the fixed seat 408 passes through the fixed seat 408 and the protective cover 405 and extends to the outside of the protective cover 405. The connecting rod 409, the fixed seat 408 and the slide 407 cooperate with each other to play an auxiliary limiting role for the limiting rod 406.

[0034] Furthermore, a spring 410 is sleeved on the outer surface of the connecting rod 409. The spring 410 is located between the fixed seat 408 and the slide 407. The force of the spring 410 can limit the limiting rod 406 through the slide 407, thereby improving the stability of the insertion of the limiting rod 406 and the limiting ring 404.

[0035] Furthermore, a handle 411 is connected to the end of the limiting rod 406 away from the limiting ring 404, and the handle 411 makes it easy to pull the limiting rod 406.

[0036] Furthermore, a backrest 3 is also installed on the connecting frame 1.

[0037] The folding and storage mechanism for the tiered chair provided by this utility model is used as follows:

[0038] Reference Figure 1 and Figure 2When it is necessary to fold the table and chair board 2, pull the handle 411 away from the protective cover 405. This will cause the handle 411 to move the limiting rod 406, separating the limiting rod 406 from the limiting ring 404. Then, rotate the table and chair board 2 upright around the connecting shaft 101. Figure 6 As shown; when it is necessary to rotate the table and chair board 2 to be horizontal, pull the handle 411 away from the protective cover 405, and rotate the table and chair board 2 to be horizontal with the connecting shaft 101 as the center. At this time, the limit rod 406 is inserted into the arc plate 402. Release the handle 411, and the force of the spring 410 drives the limit rod 406 to move through the slide 407, so that the limit rod 406 is inserted into the limit ring 404.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A folding and storage mechanism for a tiered chair, characterized in that, The system includes a connecting frame (1), on which a connecting shaft (101) is provided. The connecting shaft (101) is connected to a table and chair board (2). A fixing structure (4) is provided between the bottom of the table and chair board (2) and the connecting frame (1). The fixing structure (4) includes a locking component provided at the bottom of the table and chair board (2). The locking component includes a limiting rod (406). One end of the limiting rod (406) is inserted into a limiting ring (404). A second support plate (403) is fixedly installed on the top of the limiting ring (404). Both ends of the second support plate (403) are fixedly connected to the connecting frame (1).

2. The folding and storage mechanism for the stepped chair according to claim 1, characterized in that, The outer surface of the limiting rod (406) is also fitted with an arc plate (402). The arc plate (402) is located on the side of the second support plate (403) away from the connecting shaft (101). The first support plate (401) is fixedly connected to both sides of the arc plate (402). The end of the first support plate (401) away from the arc plate (402) is fixedly connected to the connecting frame (1).

3. The folding and storage mechanism for the stepped chair according to claim 2, characterized in that, Both the first support plate (401) and the second support plate (403) are used to support the table and chair board (2).

4. The folding and storage mechanism for the stepped chair according to claim 3, characterized in that, The locking component also includes a protective cover (405), which is bolted to the bottom of the table and chair board (2). The top of the protective cover (405) has a groove, and the limiting rod (406) passes through the groove.

5. The folding and storage mechanism for the stepped chair according to claim 4, characterized in that, The outer surface of the limiting rod (406) is fixedly fitted with a slide (407) located inside the protective cover (405), and the slide (407) is slidably connected to the bottom of the table and chair board (2).

6. The folding and storage mechanism for the stepped chair according to claim 5, characterized in that, The outer surface of the limiting rod (406) is connected to a fixing seat (408), which is fixedly installed on the bottom of the table and chair board (2).

7. The folding and storage mechanism for the stepped chair according to claim 6, characterized in that, A connecting rod (409) is fixedly installed on the side of the slide (407) near the fixed seat (408). The end of the connecting rod (409) away from the fixed seat (408) passes through the fixed seat (408) and the protective cover (405) and extends to the outside of the protective cover (405).

8. The folding and storage mechanism for the stepped chair according to claim 7, characterized in that, A spring (410) is fitted on the outer surface of the connecting rod (409), and the spring (410) is located between the fixed seat (408) and the slide (407).

9. The folding and storage mechanism for the stepped chair according to claim 1, characterized in that, The end of the limiting rod (406) away from the limiting ring (404) is connected to a handle (411).

10. The folding and storage mechanism for the stepped chair according to claim 1, characterized in that, A backrest (3) is also installed on the connecting frame (1).

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