Metal chair with long service life

Abstract

The utility model belongs to the technical field of metal chairs, particularly relates to a metal chair with long service life, and provides the following scheme aiming at the protection problem: the metal chair comprises a base, the upper surface of the base is fixedly connected with a seat cushion; a backup plate is rotationally mounted on one side of the upper surface of the base; adjusting mechanisms are fixedly connected to the two sides of the upper surface of the base. And the lower surface of the base is fixedly connected with a buffer mechanism. And through the arrangement of the buffering mechanism, the impact force borne by the supporting columns can be effectively reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of metal chairs, in particular to a metal chair with a long service life. Background Art

[0002] Seats are one of the most popular seating tools for people and are widely used in families, offices, service halls and bars.

[0003] However, there are still deficiencies in the prior art. The metal chairs in the prior art lack the function of adjusting the backrest, and the support columns of the metal chairs often bend and cannot be used.

[0004] Therefore, we propose a metal chair with a long service life to solve this problem. Summary of the Invention

[0005] The purpose of the utility model is to solve the problems raised in the above background art, and to propose a metal chair with a long service life.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A metal chair with a long service life, comprising a base; a seat cushion is fixedly connected to the upper surface of the base; a backrest is rotatably installed on one side of the upper surface of the base; adjusting mechanisms are fixedly connected to both sides of the upper surface of the base; a buffer mechanism is fixedly connected to the lower surface of the base.

[0008] Preferably, the adjusting mechanism includes a mounting block fixedly connected to the upper surface of the base; a first rotating shaft is rotatably installed on the inner surface of the mounting block; a first connecting plate is rotatably installed on the outer circular surface of the first rotating shaft; a second connecting plate is movably installed on the outer surface of the first connecting plate; a threaded housing is fixedly connected to one side of the outer surface of the second connecting plate; a first connecting rod is rotatably installed on one side of the outer surface of the second connecting plate; a threaded groove is provided on one side of the outer circular surface of the first connecting rod; a rotating block is fixedly connected to one end of the first connecting rod; a second rotating shaft is rotatably installed on the other side of the outer surface of the second connecting plate; a protective pad is fixedly connected to one side of the outer surface of the second connecting plate.

[0009] Preferably, the first connecting rod is matched with the threaded housing through the threaded groove; the second connecting plate is connected to the first connecting plate through the first connecting rod; one end of the second rotating shaft is fixedly connected to the inner surface of the backrest.

[0010] Preferably, the buffer mechanism includes a support block fixedly connected to the lower surface of the base; a second connecting rod is fixedly connected to the lower surface of the support block; a groove is provided at the lower end of the second connecting rod; a buffer spring is fixedly connected to the inner surface of the groove; a support column is slidably mounted on the outer surface of the second connecting rod; a limiting groove is provided on the inner surface of the support column; a limiting block is fixedly connected to the outer surface of the second connecting rod.

[0011] Preferably, the limiting block is slidably mounted on the inner surface of the limiting groove; an anti-slip pad is fixedly connected to the lower surface of the support column.

[0012] In the present utility model, for the metal chair with a long service life, when adjusting the angle of the backrest through the settings of the mounting block, the first rotating shaft, the first connecting plate, the second connecting plate, the second rotating shaft, the threaded housing, the protective pad, the first connecting rod, the threaded groove, and the rotating block, rotate the rotating block. The rotation of the rotating block will drive the first connecting rod to rotate, causing the rotating block to move away from the second mounting plate, and then push the backrest to adjust the angle of the backrest. After the adjustment is completed, rotate the rotating block again to make the rotating block close to the second connecting plate, so that the rotating block squeezes the second connecting plate, thereby enabling the second connecting plate to clamp and fix the first connecting plate, completing the adjustment of the angle of the backrest. The rotation of the backrest will lower the height of the second connecting plate, realizing the rapid adjustment of the angle of the backrest and simultaneously adjusting the height of the second connecting plate, which is applicable to the backrest in different states.

[0013] In the present utility model, for the metal chair with a long service life, through the settings of the support block, the second connecting rod, the support column, the groove, the buffer spring, the anti-slip pad, the limiting groove, and the limiting block, when sitting down, an impact force will be applied to the base. The movement of the base will drive the second connecting rod to move through the support block, and the movement of the second connecting rod will compress the buffer spring. The buffer spring will absorb the impact force received by the base, reduce the impact force received by the support column, and extend the service life.

[0014] The structure of the present utility model is reasonably designed, easy to operate, and highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a metal chair with a long service life proposed by the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the adjusting mechanism in the present utility model;

[0017] Figure 3 is a cross-sectional structural schematic diagram of the buffer mechanism in the present utility model.

[0018] In the figure: 1, base; 2, seat cushion; 3, backrest; 4, adjusting mechanism; 41, mounting block; 42, first rotating shaft; 43, first connecting plate; 44, second connecting plate; 441, second rotating shaft; 45, threaded housing; 46, protective pad; 47, first connecting rod; 48, threaded groove; 49, rotating block; 5, buffer mechanism; 51, support block; 52, second connecting rod; 53, support column; 54, groove; 55, buffer spring; 56, anti-slip pad; 57, limiting groove; 58, limiting block. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-3 , a metal chair with a long service life, including a base 1; a seat cushion 2 is fixedly connected to the upper surface of the base 1; a backrest 3 is rotatably installed on one side of the upper surface of the base 1; adjusting mechanisms 4 are fixedly connected to both sides of the upper surface of the base 1; a buffer mechanism 5 is fixedly connected to the lower surface of the base 1.

[0021] Furthermore, the adjusting mechanism 4 includes a mounting block 41 fixedly connected to the upper surface of the base 1; a first rotating shaft 42 is rotatably installed on the inner surface of the mounting block 41; a first connecting plate 43 is rotatably installed on the outer circular surface of the first rotating shaft 42; a second connecting plate 44 is movably installed on the outer surface of the first connecting plate 43; a threaded housing 45 is fixedly connected to one side of the outer surface of the second connecting plate 44; a first connecting rod 47 is rotatably installed on one side of the outer surface of the second connecting plate 44; a threaded groove 48 is provided on one side of the outer circular surface of the first connecting rod 47; a rotating block 49 is fixedly connected to one end of the first connecting rod 47; a second rotating shaft 441 is rotatably installed on the other side of the outer surface of the second connecting plate 44; a protective pad 46 is fixedly connected to one side of the outer surface of the second connecting plate 44.

[0022] Furthermore, the first connecting rod 47 cooperates with the threaded housing 45 through the threaded groove 48; the second connecting plate 44 is connected to the first connecting plate 43 through the first connecting rod 47; one end of the second rotating shaft 441 is fixedly connected to the inner surface of the backrest 3.

[0023] Furthermore, the buffer mechanism 5 includes a support block 51 fixedly connected to the lower surface of the base 1; a second connecting rod 52 is fixedly connected to the lower surface of the support block 51; a groove 54 is provided at the lower end of the second connecting rod 52; a buffer spring 55 is fixedly connected to the inner surface of the groove 54; a support column 53 is slidably installed on the outer surface of the second connecting rod 52; a limiting groove 57 is provided on the inner surface of the support column 53; a limiting block 58 is fixedly connected to the outer surface of the second connecting rod 52.

[0024] Further, the limiting block 58 is slidably mounted on the inner surface of the limiting groove 57; an anti-slip pad 56 is fixedly connected to the lower surface of the support column 53.

[0025] In the present utility model, when in use, when adjusting the angle of the backrest 3, rotate the rotating block 49. The rotation of the rotating block 49 will drive the first connecting rod 47 to rotate, causing the rotating block 49 to move away from the second connecting plate 44. Then, push the backrest 3 to adjust the angle of the backrest 3. After the adjustment is completed, rotate the rotating block 49 again to make the rotating block 49 approach the second connecting plate 44, so that the rotating block 49 squeezes the second connecting plate 44, thereby enabling the second connecting plate 44 to clamp and fix the first connecting plate 43, completing the adjustment of the angle of the backrest 3. The rotation of the backrest 3 will lower the height of the second connecting plate 44, realizing the rapid adjustment of the angle of the backrest 3 and simultaneously adjusting the height of the second connecting plate 44, which is applicable to the backrest 3 in different states; when sitting down, an impact force will be exerted on the base 1. The movement of the base 1 will drive the second connecting rod 52 to move through the support block 51. The movement of the second connecting rod 52 will compress the buffer spring 55, and the buffer spring 55 will absorb the impact force received by the base 1, reducing the impact force received by the support column 53 and extending the service life.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus cannot be construed as a limitation of the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A metal chair with a long service life, characterized in that: The invention comprises a base (1); a seat cushion (2) is fixedly connected to the upper surface of the base (1); a backrest (3) is rotatably mounted on one side of the upper surface of the base (1); adjustment mechanisms (4) are fixedly connected to both sides of the upper surface of the base (1); and a buffer mechanism (5) is fixedly connected to the lower surface of the base (1).

2. A metal chair with a long service life according to claim 1, characterized in that: The adjustment mechanism (4) comprises a mounting block (41) fixedly connected to the upper surface of the base (1); a first rotating shaft (42) is rotatably mounted on the inner surface of the mounting block (41); a first connecting plate (43) is rotatably mounted on the outer circumferential surface of the first rotating shaft (42); a second connecting plate (44) is movably mounted on the outer surface of the first connecting plate (43); a threaded shell (45) is fixedly connected to one side of the outer surface of the second connecting plate (44); a first connecting rod (47) is rotatably mounted on one side of the outer surface of the second connecting plate (44); a threaded groove (48) is provided on one side of the outer circumferential surface of the first connecting rod (47); a rotating block (49) is fixedly connected to one end of the first connecting rod (47); a second rotating shaft (441) is rotatably mounted on the other side outer surface of the second connecting plate (44); a protective pad (46) is fixedly connected to one side outer surface of the second connecting plate (44).

3. A metal chair with a long service life according to claim 2, characterized in that: The No. 1 connecting rod (47) cooperates with the threaded shell (45) through the threaded groove (48); the No. 2 connecting plate (44) is connected to the No. 1 connecting plate (43) through the No. 1 connecting rod (47); one end of the No. 2 rotating shaft (441) is fixedly connected to the inner surface of the supporting plate (3).

4. A metal chair with a long service life according to claim 1, characterized in that: The buffer mechanism (5) comprises a support block (51) fixedly connected to the lower surface of the base (1); a second connecting rod (52) is fixedly connected to the lower surface of the support block (51); a groove (54) is provided at the lower end of the second connecting rod (52); a buffer spring (55) is fixedly connected to the inner surface of the groove (54); a support column (53) is slidably mounted on the outer surface of the second connecting rod (52); a limiting groove (57) is provided on the inner surface of the support column (53); and a limiting block (58) is fixedly connected to the outer surface of the second connecting rod (52).

5. A metal chair with a long service life according to claim 4, characterized in that: The limiting block (58) is slidably mounted on the inner surface of the limiting groove (57); and the lower surface of the supporting column (53) is fixedly connected with an anti-slip pad (56).

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