Chair leg component, chair leg and chair

Abstract

The utility model discloses a chair leg supporting structure which comprises a rear supporting leg, a chair surface supporting part and a front supporting leg, the rear supporting leg is fixedly connected with the front supporting leg through the chair surface supporting part to form an integral structure, and the chair surface supporting part is bent towards one side of a surface formed by the rear supporting leg and the front supporting leg by a certain distance. One section of the rear supporting leg is positioned on the upper side of the chair surface supporting part, and a chair back mounting structure is arranged on the upper side of the rear supporting leg. According to the technical scheme, the chair legs are of a split structure, so that the transportation and storage space waste caused by the fact that four chair legs are integrated is avoided, the transportation and storage cost is greatly saved, the chair is effectively prevented from swinging back and forth after the chair legs are assembled, and the stability of the split chair is greatly improved. The chair surface supporting part is bent by a certain distance, so that the pressure on the middle part of the chair surface is more effectively supported, the stress moment of the chair surface is reduced, and the bearing capacity of the chair surface is greatly improved. The utility model also provides a corresponding chair leg structure and a chair.

Description

Technical Field

[0001] The utility model relates to the field of home furnishings, in particular to a split chair leg component, a chair leg and a chair. Background Art

[0002] A chair is a piece of everyday furniture, a seat with a backrest and armrests. Modern chairs strive for aesthetics and style. However, most chairs have one-piece legs. This structure requires a lot of space for loading and unloading, and is expensive to transport. It is also prone to damage during transportation.

[0003] An existing patent (patent application number CN201920213235.7) provides a split chair. The split chair includes: chair legs, a seat and a backrest, and also includes a connector connecting the chair legs and the seat. The upper part of the connector is provided with a disc-shaped fixing portion for fixing to the seat. The lower part of the connector is evenly distributed with threaded tubes that are screwed to the chair legs. The upper ends of the chair legs are screwed inside the threaded tubes, and the chair legs form an obtuse angle or a right angle. The seat is set as a recessed structure, and the backrest is set as a rear-tilting structure. Recessed notches are provided on the left and right ends of the backrest. Although this chair can be disassembled and split, it only separates the legs and the seat. A lot of loading space will still be wasted when transporting the legs. In addition, many parts are required for assembly, which is inconvenient to disassemble and install. The processing cost is also high. Parts are easily lost during transportation and storage, and the stability is also low. Utility Model Content

[0004] In order to solve at least one of the above problems, the utility model provides a chair leg support structure, a chair leg and a chair.

[0005] The chair leg support structure provided by the present invention includes a rear support leg, a seat support portion and a front support leg. The rear support leg is fixedly connected to the front support leg through the seat support portion to form an integral structure. The seat support portion is bent a certain distance toward one side of the surface formed by the rear support leg and the front support leg. The rear support leg has a section located on the upper side of the seat support portion, and a chair back mounting structure is provided on the upper side.

[0006] With this technical solution, the legs are fixedly connected to the front support legs via the seat support portion, forming a single unit. This creates a split-leg structure, eliminating the space wasted in transporting and storing four legs as a single unit, significantly reducing transportation and storage costs. Furthermore, the front and rear support legs are fixedly connected, separating the four legs into left and right sides. Since users primarily exert rocking forces in the front-to-back direction when sitting on a chair, this structure effectively prevents the legs from rocking after assembly, significantly increasing the stability of the split-leg chair. The seat support portion bends a certain distance toward the surface formed by the rear and front support legs, increasing the area of support provided by the seat support portion. Compared to methods that only support the seat edges, this structure more effectively supports the center of the seat, reduces the load moment on the seat, and significantly improves the seat's load-bearing capacity. A section of the rear support leg is located above the seat support portion, providing additional backrest mounting and support structure. A backrest mounting structure is provided on the upper side, which allows the backrest to be conveniently installed on the upper structure. The installation of the backrest also provides a left and right fixed structure for the assembly of the chair leg support structure, making the chair legs more firm after assembly and preventing the chair legs from shaking left and right.

[0007] On the basis of the above technical solution, preferably, the seat support portion is composed of two straight line components connected end to end at a certain angle.

[0008] By adopting the above technical solution, the seat support portion is formed of two straight line components at a certain angle, which is simple and effective. Compared with structures of other shapes, the production cost is greatly reduced.

[0009] On the basis of the above technical solution, preferably, the seat support portion is composed of one or more arc-shaped components connected end to end.

[0010] The above technical solution is adopted to reduce stress concentration and greatly improve the stress-bearing performance of the seat support part and the seat surface.

[0011] On the basis of the above technical solution, preferably, the seat support portion is composed of three or more straight line components connected end to end.

[0012] By adopting the above technical solution and a relatively simple structure, more chair surface supporting parts are constructed.

[0013] On the basis of the above technical solution, preferably, the seat seat support portion is provided with a seat seat mounting through hole, and the seat back mounting structure is a through hole.

[0014] By adopting the above technical solution, the seat and backrest can be installed through the through holes. The structure is simple and easy to disassemble. In addition, the laser cutting machine can be used for processing, so that the main structure and the through holes can be processed at one time, which saves working procedures, greatly saves working hours and reduces processing costs.

[0015] Based on the above technical solution, preferably, the rear support legs are parallel to the front support legs, and the plane formed by the chair surface support portion is perpendicular to the front support legs. This structure makes the force angle of the chair legs more reasonable and maximizes the bearing of the user's gravity.

[0016] Based on the above technical solution, the front and rear support legs of the chair leg structure are preferably made of round tubes. This ensures that stress is evenly distributed in all directions on the outer surface of the chair leg, avoiding localized damage or damage at specific angles caused by stress concentration. The seat support portion is made of square tubes, which ensures that the contact surface between the chair leg structure and the seat is flat and large in area.

[0017] The present invention also provides a chair leg, which includes any one of the chair leg components in the aforementioned technical solutions, and the chair leg includes two symmetrically arranged chair leg components, the top ends or top surfaces of the bent chair seat support parts in the two chair leg components are fixedly installed, and the rear support legs of the two chair leg components are fixedly connected through the components.

[0018] With the aforementioned technical solution, the front and rear support legs are fixedly connected, creating a left and right split-leg structure. Since users primarily exert rocking force in the chair's forward and backward directions when sitting, this structure effectively prevents the chair from rocking forward and backward after assembly, significantly increasing the stability of the split-leg chair. The legs also achieve the same technical benefits as the aforementioned technical solution.

[0019] Based on the above technical solution, preferably, the bent top ends or top surfaces of the seat support parts in the two chair leg components are fixedly installed by connecting pieces, which has a simple structure, is easy to disassemble, has low requirements for accessories, is low in cost, and is stable and effective.

[0020] The present invention further provides a chair, which comprises the chair legs described in any one of the aforementioned technical solutions, or comprises the chair leg components described in any one of the aforementioned technical solutions. The chair accordingly has the technical effects of the aforementioned technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a front view schematic diagram of an embodiment of the chair leg structure of the present utility model;

[0023] Figure 2This is a left side schematic diagram of an embodiment of the chair leg structure of the present utility model;

[0024] Figure 3 This is a top view of an embodiment of the chair leg structure of the present invention;

[0025] Figure 4 This is a schematic front view of an embodiment of the chair leg of the present invention;

[0026] Figure 5 It is a bottom view schematic diagram of an embodiment of the chair leg of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In one embodiment, if Figures 1 to 3 As shown, the chair leg support structure provided by the present invention includes a rear support leg 1, a seat support portion 2, and a front support leg 3. The rear support leg 1 is fixedly connected to the front support leg 3 via the seat support portion 2 to form an integral structure. The seat support portion 2 is bent a certain distance L toward one side of the surface S formed by the rear support leg 1 and the front support leg 3. A section of the rear support leg 1 is located above the seat support portion 2, and a chair back mounting structure 11 is provided on the upper side. Because the rear support leg 1 and the front support leg 3 may have different curvatures and / or inclinations, the surface S formed by the two is not necessarily formed by the full dimensions of the two. Surface S is intended to indicate the direction in which the seat support portion 2 bends, and this direction extends toward the seat portion after the leg structure is assembled. The rear support leg 1, the seat support portion 2, and the front support leg 3 are preferably fixedly connected by welding. The rear support leg 1 and / or the front support leg 3 can be tilted outward at a certain angle to increase support stability. The rear support leg 1 and / or the front support leg 3 can also be modified at different angles or shapes to create different chair styles. These modifications do not exceed the scope of protection of this utility model. The top of the front support leg 3 is flush with the top surface and / or top of the seat support portion 2 to facilitate seat installation.

[0029] With the above-mentioned technical solution, the legs are fixedly connected to the front support legs via the seat support portion to form an integral structure, resulting in a split-body structure. This avoids the space waste associated with transporting and storing four legs as a single unit, significantly reducing transport and storage costs. Furthermore, the front and rear support legs are fixedly connected, separating the four legs into left and right sides. Since users primarily exert rocking force in the front-to-back direction when sitting on a chair, this structure effectively prevents the legs from rocking back and forth after assembly, significantly increasing the stability of the split-body chair. The seat support portion bends a certain distance toward one side of the plane formed by the rear and front support legs, increasing the amount of support provided by the seat support portion to the seat surface. Compared to methods that only provide support at the edges of the seat surface, this structure more effectively supports the pressure on the center of the seat surface, reduces the force and torque applied to the seat surface, and significantly improves the seat surface's load-bearing capacity. A backrest mounting structure is provided on the upper side, which allows the backrest to be conveniently installed on the upper structure. The installation of the backrest also provides a left and right fixed structure for the assembly of the chair leg support structure, making the chair legs more firm after assembly and preventing the chair legs from shaking left and right.

[0030] Furthermore, as a preferred embodiment, Figure 2 、 Figure 3 As shown, the seat support portion 2 is composed of two straight members 21 connected end to end at a certain angle. The two straight members 21 can be of equal length or one long and one short, and can be combined with other components such as the seat to design different styles.

[0031] By adopting the above technical solution, the seat support portion is formed of two straight line components at a certain angle, which is simple and effective. Compared with structures of other shapes, the production cost is greatly reduced.

[0032] In another preferred embodiment, the seat support portion 2 is composed of one or more arc-shaped components connected end to end.

[0033] The above technical solution is adopted to reduce stress concentration and greatly improve the stress-bearing performance of the seat support part and the seat surface.

[0034] In another preferred embodiment, the seat support portion 2 is composed of three or more straight segments connected end to end. Of course, the present invention mainly adopts the design concept of the left and right separate chair legs, and various changes in the seat support portion are within the scope of protection of the present invention.

[0035] By adopting the above technical solution and a relatively simple structure, more chair surface supporting parts are constructed.

[0036] Furthermore, as a preferred embodiment, Figure 1 and Figure 3As shown, a seat surface mounting through hole 22 is provided on the seat surface supporting portion 2, and the seat back mounting structure 11 is a through hole.

[0037] By adopting the above technical solution, the seat and backrest can be installed through the through holes. The structure is simple and easy to disassemble. In addition, the laser cutting machine can be used for processing, so that the main structure and the through holes can be processed at one time, which saves working procedures, greatly saves working hours and reduces processing costs.

[0038] Furthermore, as a preferred embodiment, Figure 1 and Figure 2 As shown, the rear support leg 1 is parallel to the front support leg 3, and the plane formed by the chair surface support portion 2 is perpendicular to the front support leg 3. This structure makes the force angle of the chair legs more reasonable and maximizes the bearing of the user's gravity.

[0039] Furthermore, as a preferred embodiment, Figures 1 to 3 As shown, the front and rear support legs 3 and 1 of the chair leg structure are made of round tubes, which ensures that stress is evenly distributed in all directions on the outer edges of the chair legs, avoiding localized or angled damage caused by stress concentration. The seat support portion 2 is made of square tubes, which ensures a flat contact surface between the leg structure and the seat surface, increasing the contact area.

[0040] The present invention also provides a chair leg, which includes any of the chair leg components in the aforementioned technical solutions, and the chair leg includes two symmetrically arranged chair leg components. However, if there is a solution that can be circumvented and a non-completely symmetrical chair leg component is used, as long as the technical solution of using the left and right split chair leg components to form the chair leg is used, it is within the scope of protection of the present invention. Figure 4 、 Figure 5 As shown, the bent top end or top surface 4 of the seat support portion 2 in the two chair leg components can be fixedly installed by connecting parts, bolts or direct welding, and the rear support legs 1 of the two chair leg components are fixedly connected by component 5. Component 5 is usually a chair backrest (chair back) with an ergonomic shape. The installation position and style of component 5 can be changed in different ways, all of which are within the design scope of the present invention.

[0041] With the aforementioned technical solution, the front and rear support legs are fixedly connected, creating a left and right split-leg structure. Since users primarily exert rocking force in the chair's forward and backward directions when sitting, this structure effectively prevents the chair from rocking forward and backward after assembly, significantly increasing the stability of the split-leg chair. The legs also achieve the same technical benefits as the aforementioned technical solution.

[0042] Furthermore, as a preferred embodiment, Figure 4 、 Figure 5As shown, the bent top ends or top surfaces of the seat support portions of the two chair leg components are fixedly mounted via the connecting piece 6 , which has a simple structure, is easy to disassemble, has low requirements on accessories, is low in cost, and is stable and effective.

[0043] The present invention also provides a chair, which comprises the chair legs described in any one of the above technical solutions, or comprises the chair leg components described in any one of the above technical solutions, such as Figure 5 As shown, the seat surface 7 can be detachably mounted on the seat surface support portion 2 ( Figure 5 The dotted line range in the figure is a schematic diagram of the installation position of the chair surface), and the chair backrest 5 can be detachably installed on the upper side of the rear support leg. The chair correspondingly has the technical effect of the above-mentioned technical solution.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A chair leg component, characterized in that: include: A rear supporting leg, a seat support portion and a front supporting leg, the rear supporting leg is fixedly connected to the front supporting leg through the seat support portion to form an integral structure, the seat support portion is bent a certain distance toward one side of the surface formed by the rear supporting leg and the front supporting leg, and a section of the rear supporting leg is located on the upper side of the seat support portion, and a chair back mounting structure is provided on the upper side.

2. The chair leg component according to claim 1, characterized in that The seat support portion is composed of two straight line components connected end to end at a certain angle.

3. The chair leg component according to claim 1, characterized in that The seat support portion is composed of one or more arc-shaped components connected end to end.

4. The chair leg member according to claim 1, characterized in that The seat support portion is composed of three or more straight line components connected end to end.

5. The chair leg member according to any one of claims 1 to 4, characterized in that: The seat support portion is provided with a seat mounting through hole, and the seat back mounting structure is a through hole.

6. The chair leg member according to any one of claims 1 to 4, characterized in that: The rear supporting legs are parallel to the front supporting legs, and the plane formed by the seat support portion is perpendicular to the front supporting legs.

7. The chair leg member according to any one of claims 1 to 4, characterized in that: The front supporting legs and the rear supporting legs are made of round tubes, and the seat support portion is made of square tubes.

8. A chair leg, characterized in that: The chair leg component comprises any one of claims 1 to 7, wherein the chair leg comprises two symmetrically arranged chair leg components, the top ends or top surfaces of the bent chair seat support portions of the two chair leg components are fixedly mounted, and the rear support legs of the two chair leg components are fixedly connected via a component.

9. The chair leg according to claim 8, wherein: The bent top ends or top surfaces of the seat support portions of the two chair leg components are fixedly mounted via connecting pieces.

10. A chair, characterized in that: The chair leg comprises the chair leg according to any one of claims 8 or 9, or the chair leg component according to any one of claims 1 to 7.

Images