Disassembling and assembling five-star foot

Abstract

A detachable five-star foot is used for solving the technical problem that in the process that the five-star foot is used by a user, the whole five-star foot at the bottom of a seat needs to be replaced usually when the five-star foot is damaged all the time, and the use cost of the user is further increased. The center seat comprises an annular base and five branch pipes evenly welded to the outer wall of the annular base in the circumferential direction of the annular base. The branch pipe is formed by bending and comprises a top wall, two side walls and a bottom wall, a plurality of positioning convex points are arranged on the side, close to the annular base, of the bottom wall, and the number of the positioning convex points is even, and the positioning convex points are symmetrically arranged along the central axis in the length direction of the bottom wall; a plurality of positioning salient points are arranged on the bottom wall of the supporting pipe, a plurality of screw holes are further formed in the bottom wall, a plurality of positioning holes matched with the screw holes are formed in the foot pipe, when the foot pipe is arranged on the supporting pipe in a sleeving mode, one end of the foot pipe abuts against the positioning salient points, and the screw holes are aligned with the positioning holes.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, specifically to a detachable five-star base. Background Technology

[0002] Swivel chair legs, also known as five-star legs, are common accessories for swivel chairs and office chairs. They are used to install the lifting cylinder and support the swivel chair. Existing swivel chair legs are usually radial, one-piece structures.

[0003] In the existing technology, the five-star base is a relatively important component in the chairs produced by manufacturers. It usually occupies a lot of space in the shipping container. Moreover, if any of the chair legs is damaged during use, the entire five-star base at the bottom of the chair usually needs to be replaced, which further increases the user's cost. Therefore, we propose a detachable five-star base. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a detachable five-star base, which solves the technical problem that when one chair leg is damaged during use, the entire five-star base at the bottom of the chair usually needs to be replaced, further increasing the user's operating costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detachable five-star foot includes a central base detachably connected to a foot tube. The central base includes an annular base and five branch tubes uniformly welded along its circumference on the outer wall of the annular base. The branch tubes are formed by bending and include a top wall, two side walls, and a bottom wall. A plurality of positioning protrusions are provided on the side of the bottom wall near the annular base. The number of positioning protrusions is even and they are symmetrically arranged along the central axis of the length direction of the bottom wall. A plurality of screw holes are also provided on the bottom wall, and a plurality of positioning holes that match the screw holes are provided on the foot tubes. When the foot tubes are fitted onto the branch tubes, one end of the foot tube abuts against the plurality of positioning protrusions, and the screw holes and positioning holes are aligned.

[0007] Working principle:

[0008] When the five-star base of the seat becomes damaged during long-term use, or when the five-star base occupies a large space in the container during transportation, the user can first remove the screws on the foot tubes that need to be replaced one by one, then remove the foot tubes from the support tubes, and then put the new foot tubes back onto the support tubes, so that one end of the foot tubes abuts against the protrusions set on the bottom wall.

[0009] The beneficial effects of this utility model are as follows:

[0010] The convex points arranged on the annular base can make the foot pipe abut on the annular base more stably, the screw holes arranged can facilitate the foot pipe to be detached from the support pipe, so that the user is more convenient when replacing the foot pipe, the use cost is reduced, and after the foot pipe is detached from the support pipe, the foot pipe is conveniently installed into the container, so that the five-star foot obtains a larger volume rate when loading, thereby reducing the freight cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the embodiment of the utility model;

[0012] Figure 2 It is a structure schematic view of the support pipe;

[0013] Figure 3 It is a structure schematic view of the support pipe.

[0014] The figure mark explanation: center seat 1, foot pipe 2, annular base 3, support pipe 4, top wall 5, side wall 6, bottom wall 7, convex point 8, screw hole 9, positioning hole 10, first flat plate 11, second flat plate 12, low convex 13, high convex 14, recess 15. DETAILED DESCRIPTION

[0015] The technical scheme in the utility model is further explained below in combination with the drawings and the embodiment.

[0016] As shown in Figure 1 , Figure 2 and Figure 3 , a detachable five-star foot includes a center seat 1 and a foot pipe 2 detachably connected to the center seat 1, the center seat 1 includes an annular base 3 and five support pipes 4 evenly welded on the outer wall of the annular base 3 along the circumferential direction thereof, the support pipe 4 is formed by bending and includes a top wall 5, two side walls 6 and a bottom wall 7, a plurality of positioning convex points 8 are arranged on the bottom wall 7 near one side of the annular base 3, the positioning convex points 8 are arranged in an even number and symmetrically along the central axis of the length direction of the bottom wall 7, a plurality of screw holes 9 are formed on the bottom wall 7, and a plurality of positioning holes 10 matched with the screw holes 9 are formed on the foot pipe 2, when the foot pipe 2 is sleeved on the support pipe 4, one end of the foot pipe 2 abuts against the plurality of positioning convex points 8, and the screw holes 9 and the positioning holes 10 are aligned.

[0017] When the foot pipe 2 of the five-star foot at the bottom of the seat is damaged in the process of long-term use, and the five-star foot occupies a large space in the container during transportation, first, the user can remove the screws on the foot pipe 2 to be replaced in sequence, then detach the foot pipe 2 from the support pipe 4, and then sleeve the newly replaced foot pipe 2 on the support pipe 4, so that one end of the foot pipe 2 abuts against the convex points 8 arranged on the bottom wall 7.

[0018] The convex point 8 arranged on the annular base 3 can make the foot pipe 2 abut on the annular base 3 more stably, the screw hole 9 arranged can facilitate the foot pipe 2 to be detached from the branch pipe 4, so that the user is more convenient when replacing the foot pipe 2, reduces the use cost, and after the foot pipe 2 is detached from the branch pipe 4, it is convenient to install into the container, so that the five-star foot obtains greater volume rate when loading, so as to reduce the freight cost.

[0019] As shown in Figure 1 , Figure 2 and Figure 3 , the positioning convex point 8 is provided with two, the screw hole 9 is provided with three and forms a row, two positioning convex points 8 are symmetrically arranged with the center line of the three screw holes 9 as the center line, the branch pipe 4 after bending forming includes a first flat plate 11 and a second flat plate 12, the top wall 5 is formed by the first flat plate 11 and the second flat plate 12 on the side close to each other; A plurality of low protrusions 13 and high protrusions 14 are arranged on the side of the first flat plate 11 close to the second flat plate 12, and notches 15 are formed between the low protrusions 13 and the high protrusions 14; The shape of the side of the second flat plate 12 close to the first flat plate 11 is adapted to the low protrusion 13, the high protrusion 14 and the notch 15, the first flat plate 11 and the second flat plate 12 are buckled to form the bottom wall 7, the edges of the high protrusion 14, the low protrusion 13 and the notch 15 are arc-shaped, which can make the service life of the branch pipe 4 longer and the processing more stable, and the first flat plate 11 and the second flat plate 12 adopt a composite letter chain buckle, which is rigid and flexible, making the link more simple and firm, the three screw holes 9 are provided with a settlement hole for the screw to be stable, and the end of the high protrusion 14 is wide and the root is narrow.

[0020] The two symmetrical convex points 8 arranged can form a triangle with one end of the foot pipe 2, which can stably set the foot pipe 2 on the branch pipe 4, and after retaining a stable and reasonable assembly gap with the foot pipe 2, the stability of the product can be ensured, and the screw hole 9 and the positioning hole 10 arranged can make the foot pipe 2 and the branch pipe 4 more stable, the low protrusion 13 and the high protrusion 14 and the notch 15 arranged on the first flat plate 11 can make the first flat plate 11 and the second flat plate 12 buckle, and the end of the high protrusion 14 is wide and the root is narrow, which can make the first flat plate 11 and the second flat plate 12 buckle more tightly.

[0021] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A detachable five-star foot, comprising a central seat (1) and a foot pipe (2) detachably connected to the central seat (1), characterized in that: The center seat (1) comprises a ring base (3) and five branch pipes (4) evenly welded on the outer wall of the ring base (3) along the circumferential direction; the branch pipe (4) is formed by bending and comprises a top wall (5), two side walls (6) and a bottom wall (7), a plurality of positioning protrusions (8) are arranged on the bottom wall (7) near one side of the ring base (3), the positioning protrusions (8) are arranged in an even number and are symmetrically arranged along the central axis of the length direction of the bottom wall (7); a plurality of screw holes (9) are formed on the bottom wall (7), a plurality of positioning holes (10) matched with the screw holes (9) are formed on the foot pipe (2), when the foot pipe (2) is sleeved on the branch pipe (4), one end of the foot pipe (2) abuts against the plurality of positioning protrusions (8), and the screw holes (9) and the positioning holes (10) are aligned.

2. The detachable five-star foot according to claim 1, wherein: The positioning protrusions (8) are arranged in two, the screw holes (9) are arranged in three and form a row, and the two positioning protrusions (8) are symmetrically arranged with the center line of the three screw holes (9) as the middle line.

3. The detachable five-star foot according to claim 1, wherein: The branch pipe (4) formed by bending comprises a first flat plate (11) and a second flat plate (12), the top wall (5) is formed by splicing and buckling the side of the first flat plate (11) and the second flat plate (12) close to each other; a plurality of low protrusions (13) and high protrusions (14) are arranged on the side of the first flat plate (11) close to the second flat plate (12), and notches (15) are formed between the low protrusions (13) and the high protrusions (14); the shape of the side of the second flat plate (12) close to the first flat plate (11) is matched with the low protrusions (13), the high protrusions (14) and the notches (15), and the first flat plate (11) and the second flat plate (12) are buckled to form the bottom wall (7).

4. The detachable five-star foot according to claim 3, wherein: The edges of the high protrusions (14), the low protrusions (13) and the notches (15) are all circular arcs.

5. The detachable five-star base according to claim 1, wherein: The three screw holes (9) are provided with sinking holes for stable screws.

6. The detachable five-star base according to claim 4, wherein: The end of the high protrusion (14) is wide, and the root is narrow.

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