Plastic arm-chair

By designing adjustable chair legs and foot structures, the problem of poor balance of existing plastic chairs on uneven grounds is solved, and good balance and stability of use on complex road surfaces is achieved.

CN222898648UActive Publication Date: 2025-05-27HUANGSHAN XINMINGSHENG HONGFENGYE METAL & PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202422132163.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-05-27
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The legs of existing plastic chairs are integrated into one-piece structures, which cannot maintain good balance on uneven grounds and are not suitable for good applicability.

Method used

A plastic chair including a chair body, chair legs, foot and adjustment components is designed. The adjustment assembly consists of a screw sleeve, a mounting frame, a universal ball head and a locking assembly. Through these components, the height of the chair legs can be adjusted independently, and the angle of the foot can be flexibly changed through the universal ball head.

Benefits of technology

It achieves good balance on uneven ground, is suitable for a variety of complex road surfaces, and improves stability of use with locking components.

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Abstract

The utility model provides a plastic arm-chair, and relates to the technical field of arm-chairs, the plastic arm-chair comprises an arm-chair main body, chair legs are arranged at the lower end of the arm-chair main body, bottom feet are arranged at the lower ends of the chair legs, and adjusting assemblies are arranged between the chair legs and the bottom feet; each adjusting assembly comprises a screw sleeve and a mounting frame, the screw sleeves are arranged on the chair legs in a threaded sleeving mode, the mounting frames are fixedly connected with the screw sleeves, the mounting frames are connected with the bottom feet through universal ball heads, and locking assemblies are arranged between the screw sleeves and the chair legs; by arranging the bottom feet and the adjusting assemblies, the overall height of each chair leg can be independently adjusted according to actual use requirements, the mounting frame and the bottom feet are connected through the universal ball heads, so that the angles of the bottom feet can be flexibly changed, and the arm-chair main body can still keep good balance when being placed on the uneven ground for use; the method is suitable for various complex pavements; by arranging the locking assemblies, the bottom feet are locked and fixed, the bottom feet are prevented from moving up and down in the using process, and the using stability is improved.
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Description

Technical Field

[0001] This application relates to the technical field of reclining chairs, and more particularly, to a plastic reclining chair. Background Art

[0002] Plastic reclining chairs are a very common type of chair. They are widely accepted by the market due to their advantages of light weight, convenient processing, and low cost. However, at present, the legs of most plastic reclining chairs are of an integrally formed structure, and they cannot maintain the balance of the reclining chair well when used on uneven ground, resulting in poor applicability. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a plastic reclining chair, which can solve the technical problem that the legs of most current plastic reclining chairs are of an integrally formed structure and cannot maintain the balance of the reclining chair well when used on uneven ground, resulting in poor applicability.

[0004] The embodiments of this application provide a plastic reclining chair, including a reclining chair main body. A chair leg is provided at the lower end of the reclining chair main body. A bottom foot is provided at the lower end of the chair leg. An adjustment assembly is provided between the chair leg and the bottom foot.

[0005] The adjustment assembly includes a screw sleeve and a mounting bracket. The screw sleeve is threadedly sleeved on the chair leg. The mounting bracket is fixedly connected to the screw sleeve, and the mounting bracket is connected to the bottom foot through a universal ball head. A locking assembly is provided between the screw sleeve and the chair leg.

[0006] Among them, the locking assembly includes a mounting sleeve, a limiting sleeve, and a limiting rod. The mounting sleeve is fixedly sleeved on the chair leg, and a plurality of limiting grooves are evenly formed in the mounting sleeve. The limiting rod is rotatably provided on the screw sleeve, and the limiting rod can be inserted into the limiting groove. A plurality of convex plates are evenly and fixedly provided on the mounting sleeve. The limiting sleeve is slidably sleeved on the mounting sleeve, and the limiting sleeve can be placed on the convex plates.

[0007] Among them, an anti-slip pad is provided at the lower end of the bottom foot.

[0008] Among them, a disassembly and assembly assembly is provided between the anti-slip pad and the bottom foot.

[0009] Among them, the disassembly and assembly assembly includes a bolt. A threaded hole is formed at the lower end of the bottom foot. The bolt passes through the anti-slip pad and is threadedly inserted into the threaded hole.

[0010] Among them, the anti-slip pad is made of rubber material.

[0011] Among them, anti-slip lines are provided on the outer wall of the mounting bracket.

[0012] Advantages of the present utility model:

[0013] A plastic reclining chair provided by the utility model, when in use, the mounting frame can be rotated according to actual use requirements. The mounting frame drives the screw sleeve to rotate. Under the threaded fit between the screw sleeve and the chair leg, the screw sleeve moves up and down, thereby driving the mounting frame and the bottom feet to move up and down to the target height. Subsequently, the screw sleeve is locked and fixed through the locking assembly, and then the bottom feet can be locked and fixed. Then the main body of the reclining chair can be used. By providing the bottom feet and the adjusting assembly in this application, the overall height of each chair leg can be independently adjusted according to actual use requirements. The mounting frame is connected to the bottom feet through universal ball heads, so that the bottom feet can flexibly change angles, and the main body of the reclining chair can still maintain good balance when placed on uneven ground and can be applicable to various complex road surfaces. By providing the locking assembly in this application, the bottom feet are locked and fixed to prevent the bottom feet from shifting up and down during use and improve the use stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall front view structure in some embodiments of the present application;

[0016] Figure 2 It is a schematic diagram of the partial front view structure in some embodiments of the present application;

[0017] Figure 3 It is a sectional view of the partial front view structure in some embodiments of the present application;

[0018] Figure 4 It is an exploded view of the partial front view structure in some embodiments of the present application;

[0019] Figure 5 It is a schematic diagram of the top view structure of the mounting sleeve in some embodiments of the present application.

[0020] The reference numerals are respectively:

[0021] 1, main body of the reclining chair;

[0022] 2, chair leg;

[0023] 3, bottom foot; 31, threaded hole;

[0024] 4, adjusting assembly; 41, screw sleeve; 42, mounting frame;

[0025] 5. Locking assembly; 51. Mounting sleeve; 52. Limiting sleeve; 53. Limiting rod; 54. Limiting groove; 55. Convex plate;

[0026] 6. Anti-slip pad;

[0027] 7. Disassembly and assembly component; 71. Bolt. Specific implementation manner

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application that is claimed, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present application, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] As Figures 1 to 4 shown, an embodiment of the present application provides a plastic armchair, including an armchair main body 1. A chair leg 2 is arranged at the lower end of the armchair main body 1. A foot 3 is arranged at the lower end of the chair leg 2. An adjustment assembly 4 is arranged between the chair leg 2 and the foot 3;

[0035] The adjustment assembly 4 includes a screw sleeve 41 and a mounting bracket 42. The screw sleeve 41 is threadedly sleeved on the chair leg 2. The mounting bracket 42 is fixedly connected to the screw sleeve 41, and the mounting bracket 42 is connected to the foot 3 through a universal ball head. A locking assembly 5 is arranged between the screw sleeve 41 and the chair leg 2.

[0036] During use, the mounting bracket 42 can be rotated according to actual use requirements. The mounting bracket 42 drives the screw sleeve 41 to rotate. Under the threaded fit between the screw sleeve 41 and the chair leg 2, the screw sleeve 41 moves up and down, thereby driving the mounting bracket 42 and the foot 3 to move up and down to the target height. Subsequently, the screw sleeve 41 is locked and fixed through the locking assembly 5, and then the foot 3 can be locked and fixed. Subsequently, the armchair main body 1 can be used. By arranging the foot 3 and the adjustment assembly 4 in the present application, the overall height of each chair leg 2 can be independently adjusted according to actual use requirements. The mounting bracket 42 is connected to the foot 3 through a universal ball head, so that the foot 3 can flexibly change its angle. When the armchair main body 1 is placed on an uneven ground for use, it can still maintain good balance and can be applicable to various complex road surfaces. By arranging the locking assembly 5 in the present application, the foot 3 is locked and fixed to prevent the foot 3 from shifting up and down during use and improve the use stability.

[0037] As Figures 1 to 5 shown, in this embodiment, the locking assembly 5 includes a mounting sleeve 51, a limiting sleeve 52, and a limiting rod 53. The mounting sleeve 51 is fixedly sleeved on the chair leg 2, and a plurality of limiting grooves 54 are evenly formed in the mounting sleeve 51. The limiting rod 53 is rotatably arranged on the screw sleeve 41, and the limiting rod 53 can be inserted into the limiting groove 54. A plurality of convex plates 55 are evenly and fixedly arranged on the mounting sleeve 51. The limiting sleeve 52 can be slidably sleeved on the mounting sleeve 51, and the limiting sleeve 52 can be placed on the convex plates 55.

[0038] During use, the screw sleeve 41 moves up and down, thereby driving the mounting bracket 42 and the base feet 3 to move up and down to the target height. Subsequently, the limit sleeve 52 is moved upward away from the mounting sleeve 51. Then, the limit rod 53 is rotated until it is inserted into the corresponding limit groove 54. Subsequently, the limit sleeve 52 is moved downward to be placed on the convex plate 55 and sleeved with the mounting sleeve 51, so that the limit rod 53 can be locked and fixed in the limit groove 54, the screw sleeve 41 cannot rotate, the screw sleeve 41 is locked and fixed, and the base feet 3 can be locked and fixed.

[0039] As Figures 1 to 4 shown, in this embodiment, an anti-slip pad 6 is provided at the lower end of the base feet 3; the anti-slip pad 6 can increase the friction between the contact surface of the chair main body 1 and the ground, so that the chair main body 1 can be stably placed on the ground and the use stability is improved.

[0040] As Figures 1 to 4 shown, in this embodiment, a disassembly and assembly component 7 is provided between the anti-slip pad 6 and the base feet 3; by providing the disassembly and assembly component 7 in this application, it is convenient for the staff to quickly disassemble and replace the worn anti-slip pad 6, improving the use convenience.

[0041] As Figures 1 to 4 shown, in this embodiment, the disassembly and assembly component 7 includes a bolt 71. A threaded hole 31 is opened at the lower end of the base feet 3. The bolt 71 passes through the anti-slip pad 6 and is threadedly inserted into the threaded hole 31; when the anti-slip pad 6 needs to be disassembled, the bolt 71 is rotated. Under the thread fit between the bolt 71 and the threaded hole 31, the bolt 71 moves downward away from the threaded hole 31, releasing the locking and fixing of the anti-slip pad 6, and the anti-slip pad 6 can be disassembled.

[0042] In this embodiment, the anti-slip pad 6 is made of rubber material; the anti-slip pad 6 made of rubber material has an anti-slip function and good wear resistance, extending the service life and replacement cycle.

[0043] In this embodiment, anti-slip lines are provided on the outer wall of the mounting bracket 42; the anti-slip lines can increase the friction on the surface of the mounting bracket 42 and enhance the anti-slip effect.

[0044] Working principle: When the plastic chair provided in this application is in use, the mounting bracket 42 can be rotated according to the actual use requirements. The mounting bracket 42 drives the screw sleeve 41 to rotate. Under the thread fit between the screw sleeve 41 and the chair leg 2, the screw sleeve 41 moves up and down, thereby driving the mounting bracket 42 and the base feet 3 to move up and down to the target height. Subsequently, the limit sleeve 52 is moved upward away from the mounting sleeve 51. Then, the limit rod 53 is rotated until it is inserted into the corresponding limit groove 54. Subsequently, the limit sleeve 52 is moved downward to be placed on the convex plate 55 and sleeved with the mounting sleeve 51, so that the limit rod 53 can be locked and fixed in the limit groove 54, the screw sleeve 41 cannot rotate, the screw sleeve 41 is locked and fixed, and the base feet 3 can be locked and fixed. Then, the chair main body 1 can be used;

[0045] When it is necessary to disassemble the anti-slip pad 6, rotate the bolt 71. Under the screw thread fit between the bolt 71 and the threaded hole 31, the bolt 71 moves downward away from the threaded hole 31, releasing the locking and fixing of the anti-slip pad 6, and then the anti-slip pad 6 can be disassembled.

[0046] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A plastic armchair, characterized in that: The invention comprises a chair body (1), wherein the lower end of the chair body (1) is provided with a chair leg (2), the lower end of the chair leg (2) is provided with a foot (3), and an adjustment component (4) is provided between the chair leg (2) and the foot (3); The adjustment assembly (4) comprises a screw sleeve (41) and a mounting frame (42); the screw sleeve (41) is threadedly sleeved on the chair leg (2); the mounting frame (42) is fixedly connected to the screw sleeve (41); and the mounting frame (42) is connected to the base (3) via a universal ball head; a locking assembly (5) is provided between the screw sleeve (41) and the chair leg (2).

2. The plastic armchair according to claim 1, characterized in that: The locking assembly (5) comprises a mounting sleeve (51), a limiting sleeve (52) and a limiting rod (53); the mounting sleeve (51) is fixedly mounted on the chair leg (2), and the mounting sleeve (51) is evenly provided with a plurality of limiting grooves (54); the limiting rod (53) is rotatably mounted on the screw sleeve (41), and the limiting rod (53) can be inserted into the limiting groove (54); a plurality of convex plates (55) are evenly fixedly mounted on the mounting sleeve (51); the limiting sleeve (52) can be slidably mounted on the mounting sleeve (51), and the limiting sleeve (52) can be placed on the convex plates (55).

3. The plastic armchair according to claim 1, characterized in that: An anti-slip pad (6) is provided at the lower end of the base foot (3).

4. The plastic armchair according to claim 3, characterized in that: A disassembly and assembly component (7) is provided between the anti-slip pad (6) and the base (3).

5. The plastic armchair according to claim 4, characterized in that: The disassembly assembly (7) comprises a bolt (71), a threaded hole (31) is provided at the lower end of the base (3), and the bolt (71) passes through the anti-slip pad (6) and is threadedly plugged into the threaded hole (31).

6. The plastic armchair according to claim 3, characterized in that: The anti-slip pad (6) is made of rubber material.

7. The plastic armchair according to claim 1, characterized in that: The outer wall of the mounting frame (42) is provided with anti-slip grooves.