Novel office chair leg structure

Abstract

The utility model relates to the field of office appliances, in particular to a novel office chair leg structure which comprises a mounting seat, five supporting legs are uniformly arranged on the periphery of the mounting seat, one end, connected with the mounting seat, of each supporting leg is higher than the other end of each supporting leg, the supporting legs, the ground and the mounting seat form a triangle, and the novel office chair leg structure has good stability. Annular grooves are formed in the middle of the mounting seat, reinforcing annular plates are uniformly arranged in the annular grooves, cavities are formed in the bottoms of the supporting legs, and reinforcing structures are fixedly mounted in the cavities, so that the weight of the chair leg structure is reduced, the chair leg structure is convenient to carry and move, and the overall strength and supporting force of the chair leg structure are ensured; and the connecting sleeve is convenient for assembling the chair leg structure and the supporting column.

Description

Technical Field

[0001] The utility model relates to the field of office appliances, in particular to a novel office chair leg structure. Background Art

[0002] An office chair is narrowly defined as a chair with a backrest that a person sits on when doing desk work in a sitting position. In a broad sense, it is defined as all chairs used in offices. The leg structure of the chair supports the office chair.

[0003] However, the prior art has the following defects:

[0004] However, the existing office chair legs have a simple structure, are too thin, and lack supporting strength. They are easy to break during use, which can easily cause users to fall and get injured. In addition, in offices, employees need to discuss and communicate with each other, but most chair legs are heavy to maintain stability and are not easy to carry and move. Utility Model Content

[0005] The purpose of the present utility model is to provide a novel office chair leg structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new type of office chair leg structure, including a mounting seat, five legs evenly fixedly installed around the mounting seat, a universal wheel rotatably installed on the bottom of the leg away from one end of the mounting seat, a through groove is provided in the middle of the mounting seat and a connecting sleeve is fixedly installed inside the through groove, a second internal thread is provided inside the connecting sleeve, a cavity is provided at the bottom of the leg, and a reinforcing structure is provided inside the cavity.

[0007] The above technical solution is adopted. A connecting sleeve is provided inside the mounting seat to facilitate the installation of the support legs and the connection and installation with the seat part. Support legs are provided around the mounting seat and extend in all directions to improve the supporting force and strength.

[0008] The leg is arranged at an angle and one end of the leg close to the mounting seat is higher than the other end. The bottom of the leg close to the mounting seat is located below the bottom of the mounting seat. The top of the leg close to the mounting seat is provided with a ridge and one end of the ridge is fixedly connected to the side wall of the mounting seat.

[0009] The above technical solution is adopted, in which the legs are set at an angle to form a triangle between the ground and the mounting base. The triangle has stability, and the ridges increase the thickness of the legs, enhance the strength of the legs, and improve the overall strength of the legs.

[0010] The mounting seat is a cylinder, and an annular groove is provided at the bottom of the mounting seat. The annular groove is concentrically arranged with the through groove and is located outside the through groove. A plurality of reinforcing ring plates are evenly arranged inside the annular groove.

[0011] The above technical solution is adopted. An annular groove is opened at the bottom of the mounting seat, which can reduce the weight of the office chair leg structure and reduce manufacturing costs. A reinforcing ring plate is provided inside the annular groove to increase strength and prevent the mounting seat from breaking and damaging.

[0012] The end of the support leg away from the mounting seat is provided with a smooth chamfer, the end of the cavity close to the smooth chamfer is provided with a circular plate, the interior of the circular plate is concentrically provided with a mounting sleeve, and a plurality of first reinforcing plates are evenly arranged between the mounting sleeve and the circular plate.

[0013] The above technical solution is adopted, in which the outward end of the leg is chamfered to prevent the surface from being too sharp and injuring colleagues. A cavity is opened inside the leg to reduce the weight of the leg and facilitate transportation and movement.

[0014] A first internal thread is provided inside the mounting sleeve, a connecting column is fixedly installed on the top of the universal wheel, an external thread is provided on the outside of the connecting column, the external thread is threadedly connected to the first internal thread, and the connecting column is threadedly installed inside the mounting sleeve.

[0015] The above technical solution is adopted. The universal wheel is connected to the bottom thread of the leg away from the mounting seat through the top connecting column for fixed installation. The universal wheel facilitates the movement of the office chair.

[0016] A reinforcing strip plate is provided in the middle of the cavity, and two ends of the reinforcing strip plate are fixedly connected to one side of the circular plate and the side wall of the mounting seat respectively. A plurality of first reinforcing cylinders are evenly provided on the reinforcing strip plate.

[0017] By adopting the above technical solution, the reinforcing strip plate of the solution runs through the interior of the cavity, thereby strengthening and connecting the first reinforcing cylinder and the reinforcing plate.

[0018] The two sides of the first reinforcing cylinder are fixedly connected to the inner walls of the cavity via a third reinforcing plate. The two third reinforcing plates are fixedly connected to the side walls of the mounting seat via a second reinforcing plate. A second reinforcing cylinder is provided in the middle of the second reinforcing plate.

[0019] By adopting the above technical solution, the second reinforcing plate and the third reinforcing plate are spliced ​​to form a "M" shape and fixedly installed inside the cavity, which greatly enhances the structural strength of the legs and extends the service life of the chair leg structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The mounting base of the utility model is provided with five supporting legs around it, which extend outward and tilt downward to form a triangle between the ground and the mounting base, thereby improving stability, support force and strength. Grooves are provided at the bottom of the mounting base and the supporting legs, which reduces the weight of the chair leg structure and facilitates handling and movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic plan view of the bottom structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the chair legs and the universal wheels of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the mounting base of the present utility model.

[0026] In the figure: 1. Mounting seat; 2. Support leg; 3. Connecting sleeve; 4. Raised ridge; 5. Universal wheel; 6. Annular groove; 7. Reinforcement ring plate; 8. Smooth chamfer; 9. Cavity; 10. Through groove; 11. Annular plate; 12. Mounting sleeve; 13. First reinforcing plate; 14. Reinforcing strip; 15. First reinforcing cylinder; 16. Second reinforcing plate; 17. Third reinforcing plate; 18. Second reinforcing cylinder; 19. First internal thread; 20. Connecting column; 21. External thread; 22. Second internal thread; 23. Reinforcement structure. 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 only part of the embodiments of the present invention, not all of the embodiments. 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] See also Figure 1-4 The utility model provides a new type of office chair leg structure, including a mounting base 1, five supporting legs 2 are evenly fixedly installed around the mounting base 1, and a universal wheel 5 is rotatably installed at the bottom of the supporting leg 2 away from one end of the mounting base 1. A through groove 10 is opened in the middle of the mounting base 1 and a connecting sleeve 3 is fixedly installed inside the through groove 10. A second internal thread 22 is opened inside the connecting sleeve 3. A cavity 9 is opened at the bottom of the supporting leg 2, and a reinforcing structure 23 is provided inside the cavity 9. The reinforcing structure 23 is fixedly installed inside the cavity 9.

[0029] The leg 2 is arranged at an angle and the end of the leg 2 close to the mounting base 1 is higher than the other end. The bottom of the leg 2 close to the mounting base 1 is located below the bottom of the mounting base 1. A ridge 4 is provided at the top of the leg 2 close to the mounting base 1 and one end of the ridge 4 is fixedly connected to the side wall of the mounting base 1. The leg 2 is arranged at an angle in the horizontal direction, and the higher end of the leg 2 is fixedly connected to the outer wall of the middle part of the mounting base 1.

[0030] The mounting base 1 is a cylinder, and an annular groove 6 is provided at the bottom of the mounting base 1. The annular groove 6 is concentrically arranged with the through groove 10 and is located on the outside of the through groove 10. Several reinforcing ring plates 7 are evenly arranged inside the annular groove 6. The annular groove 6 reduces the weight of the mounting base 1.

[0031] A smooth chamfer 8 is provided at the end of the leg 2 away from the mounting seat 1, and a circular plate 11 is provided at the end of the cavity 9 close to the smooth chamfer 8. A mounting sleeve 12 is concentrically arranged inside the circular plate 11, and several first reinforcing plates 13 are evenly arranged between the mounting sleeve 12 and the circular plate 11. The end of the leg 2 extending outward is smooth.

[0032] A first internal thread 19 is provided inside the mounting sleeve 12, a connecting column 20 is fixedly installed on the top of the universal wheel 5, an external thread 21 is provided on the outside of the connecting column 20, the external thread 21 is threadedly connected to the first internal thread 19 and the connecting column 20 is threadedly installed inside the mounting sleeve 12, the universal wheel 5 includes a top plate and a wheel, and clamping plates are provided at both ends of the bottom of the top plate, and the wheel is rotatably installed between the two clamping plates.

[0033] A reinforcing strip 14 is provided in the middle of the cavity 9. The two ends of the reinforcing strip 14 are fixedly connected to one side of the circular plate 11 and the side wall of the mounting seat 1 respectively. A plurality of first reinforcing cylinders 15 are evenly provided on the reinforcing strip 14. The reinforcing strip 14 and the first reinforcing cylinders 15 form a connecting frame.

[0034] The two sides of the first reinforcing cylinder 15 are fixedly connected to the inner walls of the cavity 9 on both sides through the third reinforcing plate 17. The two third reinforcing plates 17 are fixedly connected to the side walls of the mounting base 1 through the second reinforcing plate 16. A second reinforcing cylinder 18 is provided in the middle of the second reinforcing plate 16. The second reinforcing plate 16 and the third reinforcing plate 17 are spliced ​​to form a rhombus.

[0035] Working principle: When the present invention is used, first thread the bottom of the support column of the office chair into the connecting sleeve 3 to complete the assembly between the support column and the mounting base 1. The top of the support column is fixedly installed with a chair seat. Support legs 2 are evenly arranged around the mounting base 1. The outer sides of the support legs 2 are tilted downward to form a triangle between the support legs 2, the ground and the mounting base 1, which has stability. An annular groove 6 is provided at the bottom of the mounting base 1, and a cavity 9 is provided at the bottom of the support leg 2. A reinforcing structure 23 is fixedly installed inside the cavity 9, which not only reduces the weight of the chair leg structure but also ensures its overall structural strength, thereby improving stability and supporting capacity.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel office chair leg structure, comprising a mounting seat (1), characterized in that: Five legs (2) are evenly and fixedly mounted around the mounting seat (1); a universal wheel (5) is rotatably mounted on the bottom of one end of the leg (2) away from the mounting seat (1); a through slot (10) is provided in the middle of the mounting seat (1); a connecting sleeve (3) is fixedly mounted inside the through slot (10); a second internal thread (22) is provided inside the connecting sleeve (3); a cavity (9) is provided at the bottom of the leg (2); a reinforcing structure (23) is provided inside the cavity (9).

2. The novel office chair leg structure according to claim 1, characterized in that: The support leg (2) is arranged obliquely, and one end of the support leg (2) close to the mounting seat (1) is higher than the other end; the bottom of the end of the support leg (2) close to the mounting seat (1) is located below the bottom of the mounting seat (1); a ridge (4) is provided at the top end of the support leg (2) close to the mounting seat (1), and one end of the ridge (4) is fixedly connected to the side wall of the mounting seat (1).

3. The novel office chair leg structure according to claim 1, characterized in that: The mounting seat (1) is a cylinder, and an annular groove (6) is provided at the bottom of the mounting seat (1). The annular groove (6) is concentrically arranged with the through groove (10) and is located outside the through groove (10). A plurality of reinforcing ring plates (7) are evenly arranged inside the annular groove (6).

4. The novel office chair leg structure according to claim 1, characterized in that: The leg (2) is provided with a rounded chamfer (8) at one end away from the mounting seat (1), and the cavity (9) is provided with a circular ring plate (11) at one end close to the rounded chamfer (8). A mounting sleeve (12) is concentrically arranged inside the circular ring plate (11), and a plurality of first reinforcing plates (13) are evenly arranged between the mounting sleeve (12) and the circular ring plate (11).

5. The novel office chair leg structure according to claim 4, characterized in that: A first internal thread (19) is provided inside the mounting sleeve (12), a connecting column (20) is fixedly installed on the top of the universal wheel (5), an external thread (21) is provided on the outside of the connecting column (20), the external thread (21) is threadedly connected to the first internal thread (19), and the connecting column (20) is threadedly installed inside the mounting sleeve (12).

6. The novel office chair leg structure according to claim 1, characterized in that: A reinforcing strip plate (14) is provided in the middle of the cavity (9), and the two ends of the reinforcing strip plate (14) are fixedly connected to one side of the circular plate (11) and the side wall of the mounting seat (1), respectively. A plurality of first reinforcing cylinders (15) are evenly provided on the reinforcing strip plate (14).

7. The novel office chair leg structure according to claim 6, characterized in that: The two sides of the first reinforcing cylinder (15) are fixedly connected to the inner walls of the cavity (9) on both sides via a third reinforcing plate (17), and the two third reinforcing plates (17) are fixedly connected to the side walls of the mounting seat (1) via a second reinforcing plate (16), and a second reinforcing cylinder (18) is provided in the middle of the second reinforcing plate (16).

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