Five-star foot

Abstract

A five-star foot is used for solving the technical problems that some five-star feet mentioned in the background technology are welded at a time in the welding process, that is, when welding errors occur in the welding process, adjustment cannot be conducted, foot pipes can only be scrapped, and resources are wasted. Comprising a hollow taper pipe and five foot pipes which are connected with the hollow taper pipe and distributed in a circumferential array mode, each foot pipe comprises a main body part and a stretching part, and an inserting hole is formed in the end, close to the stretching part of the foot pipe, of the main body part of each foot pipe; the plug-in body comprises a body portion and a limiting portion, the body portion of the plug-in body is composed of an upper portion and a lower portion, the upper portion of the body portion of the plug-in body is a hollow cylinder, the lower portion of the body portion of the plug-in body is a hollow circular truncated cone, and the bottom face of the cylinder coincides with the upper bottom face of the circular truncated cone. The plugging body limiting part is arranged at the upper part of the plugging body main body part; and the hollow part of the insertion body is used for mounting a roller.

Description

Technical Field

[0001] The utility model relates to the technical field of chair foot processing, in particular to a five-star foot. Background Art

[0002] The five-star foot is usually used on seats. The five-star foot has five leg tubes, and each leg tube is provided with a corresponding roller, which realizes the sliding effect of the seat through the roller.

[0003] In the prior art, the steel leg tube is usually formed by welding, and then a plug-in body is welded at the end of the leg tube for mounting the roller. However, the welding work is a one-time work, that is, if a welding error occurs during the welding process, it cannot be adjusted, resulting in the leg tube having to be scrapped, wasting resources. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a five-star foot, which is used to solve the technical problem that during the welding process of some five-star feet mentioned in the background technology, the welding work is a one-time work, that is, when a welding error occurs during the welding process, it cannot be adjusted, resulting in the foot tube having to be scrapped, wasting resources.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A five-star foot comprises a hollow tapered tube and five leg tubes connected to the hollow tapered tube and distributed in a circular array, the leg tube comprising a main body and a stretching part, and a plug-in hole is provided at one end of the leg tube main body close to the leg tube stretching part; the plug-in body also comprises a main body and a limiting part, the plug-in body main body is composed of an upper and lower part, the upper part of the plug-in body main body is a hollow cylinder, the lower part of the plug-in body main body is a hollow cone, the bottom surface of the cylinder coincides with the upper bottom surface of the cone, the plug-in body limiting part is arranged at the upper part of the plug-in body main body, the lower part of the plug-in body main body is used for plugging into the plug-in hole, the plug-in body limiting part is against the leg tube main body, and the upper part of the plug-in body main body is away from the plug-in body limiting part and fits with the leg tube stretching part; the hollow part of the plug-in body is used for installing a roller.

[0007] Working principle:

[0008] When in use, place the main body of the plug-in body in the plug-in hole. At this time, the upper part of the main body of the plug-in body is facing away from the limiting part of the plug-in body and fits with the stretching part of the leg tube, and the limiting part of the plug-in body is against the main body of the leg tube; then knock the plug-in body into the leg tube, install and fix the plug-in body, and then install the roller inside the plug-in body.

[0009] Beneficial effects:

[0010] In this solution, a foot tube with a plug hole, a main body and a stretching part is provided, and a plug body composed of a main body and a limit part is matched. When installing, the plug body is placed in the plug hole, and then the plug body is knocked into the foot tube, so that the plug body is installed and fixed. Therefore, when the plug body is fixed, if the position of the plug body is offset, it can be corrected in time and then the knocking work can be continued, which greatly reduces the waste of resources; and the tight connection between the stretching part of the foot tube and the plug body avoids the risk of the plug body falling out of the plug hole, reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] Figure 2 It is a schematic diagram of the structure of the plug-in body.

[0013] In the above drawings: hollow tapered tube 1, leg tube 2, main body 201, stretching part 202, plug-in hole 3, plug-in body 4, main body 401, limiting part 402, branch pipe 5, threaded hole 6, marking dot 7, mounting hole 8. DETAILED DESCRIPTION

[0014] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Example:

[0016] like Figure 1 and Figure 2 As shown, a five-star foot comprises a hollow tapered tube 1 and five leg tubes 2 connected to the hollow tapered tube 1 and distributed in a circumferential array, wherein the leg tube 2 comprises a main body 201 and a stretching portion 202, and an inserting hole 3 is provided at one end of the main body 201 of the leg tube 2 close to the stretching portion 202 of the leg tube 2; and further comprises an inserting body 4, wherein the inserting body 4 comprises a main body 401 and a limiting portion 402, wherein the main body 401 of the inserting body 4 is composed of an upper and lower part, wherein the upper part of the main body 401 of the inserting body 4 is a hollow cylinder, and the inserting body 4 comprises a main body 401 and a limiting portion 402. The lower part of the main body 401 of the connecting body 4 is a hollow cone, the bottom surface of the cylinder coincides with the upper bottom surface of the cone, the limiting part 402 of the plug-in body 4 is arranged at the upper part of the main body 401 of the plug-in body 4, and after the lower part of the main body 401 of the plug-in body 4 is used to be inserted into the plug-in hole 3, the limiting part 402 of the plug-in body 4 abuts against the main body 201 of the leg tube 2, and the upper part of the main body 401 of the plug-in body 4 is away from the limiting part 402 of the plug-in body 4. The side is in contact with the stretching part 202 of the leg tube 2; the hollow part of the plug-in body 4 is used to install the roller.

[0017] like Figure 1 and Figure 2As shown, the limiting portion 402 of the plug-in body 4 is a semicircular ring that fits the surface of the cylinder. Since the limiting portion 402 of the plug-in body 4 is circumscribed on the outer surface of the cylinder, the upper part of the main body 401 of the plug-in body 4 has a protruding half surface. When the plug-in body 4 is placed in the plug-in hole 3, the upper part of the main body 401 of the plug-in body 4 abuts against the surface of the plug-in hole 3 to position the plug-in body 4, thereby preventing the plug-in body 4 from falling into the plug-in hole 3, which is more convenient for operation; the stretching portion 202 of the leg tube 2 is also a semicircular ring, which fits with a side of the upper part of the main body 401 of the plug-in body 4 that is away from the limiting portion 402 of the plug-in body 4, so that when the plug-in body is inserted into the plug-in hole, the stretching portion 202 of the leg tube 2 and the limiting portion 402 of the plug-in body 4 form a complete circular surface.

[0018] In this solution, by providing a foot tube 2 with a plug hole 3, a main body 201 and a stretching part 202, and a plug body 4 composed of a main body 401 and a limiting part 402, during installation, the plug body 4 is placed in the plug hole 3, and then the plug body 4 is knocked into the foot tube 2, so as to install and fix the plug body 4. Therefore, during the process of fixing the plug body 4, if the plug body 4 is offset, it can be corrected in time and then the knocking work can be continued, thereby greatly reducing the waste of resources; and the tight connection between the stretching part 202 of the foot tube 2 and the plug body 4 avoids the risk of the plug body 4 falling from the plug hole 3, reducing the safety risk.

[0019] like Figure 1 As shown, the side wall of the hollow tapered tube 1 is provided with five branch tubes 5 which are spaced apart around the circumferential direction of the hollow tapered tube 1. The branch tubes 5 are welded to the hollow tapered tube 1, and two adjacent branch tubes 5 are welded between each other. This welding method strengthens the strength of each branch tube 5 and the hollow tapered tube 1 as well as the strength between each branch tube 5, thereby reducing the safety risk. The five leg tubes 2 are detachably mounted on the five branch tubes 5 one by one. In a detachable manner, when one of the leg tubes 2 has a problem, it can be replaced individually, thereby reducing the labor intensity and saving resources.

[0020] like Figure 1As shown, a threaded hole 6 is provided on the branch pipe 5, and a marking dot 7 is fixed on the branch pipe 5. The marking dot is a cylindrical protrusion, and the marking dot 7 is arranged between the hollow taper pipe 1 and the threaded hole 6; an arc-shaped notch is provided at one end of the foot pipe 2 close to the branch pipe 5, and a mounting hole 8 is provided on the foot pipe 2. When the foot pipe 2 is sleeved on the branch pipe 5, the marking dot 7 abuts against the arc-shaped notch, and the marking dot 7 positions the foot pipe 2, so that the mounting hole 8 and the threaded hole 6 are vertically aligned. Therefore, during the process of sleeving the foot pipe 2 on the branch pipe 5, when the arc-shaped notch on the foot pipe 2 abuts against the marking dot 7, it means that the mounting hole 8 and the threaded hole 6 are already vertically aligned at this time, thus eliminating the need to constantly pay attention to where to stop sleeving the foot pipe 2, which is convenient for operation; a bolt is threadedly connected between the threaded hole 6 and the mounting hole 8 to lock the foot pipe 2. After the mounting hole 8 and the threaded hole 6 are aligned, the bolt is screwed in to relatively lock the foot pipe 2 and the branch pipe 5, and the operation is simple.

[0021] As Figure 1 shown, the branch pipe 5 is integrally formed by bending a steel plate, and the connection part is connected by electric welding. This welding method strengthens the strength of the connection part of the branch pipe 5 and reduces the safety risk. As Figure 1 shown, the foot pipe 2 is also integrally formed by bending a steel plate. The bottom surface of the main body part 201 of the foot pipe 2 is a connection surface, and there is a gap at the connection part. The existence of this gap provides the possibility of separating the connection part of the foot pipe 2, so that the plug-in body 4 installed in the plug-in hole 3 can be taken out, and then the plug-in body 4 can be reused, reducing resource waste.

[0022] As Figure 1 shown, the mounting hole 8 is provided on the connection surface of the main body part 201 of the foot pipe 2. The mounting hole 8 is divided into a left half-hole and a right half-hole. After the main body part 201 of the foot pipe 2 is bent, the left half-hole and the right half-hole are combined to form the mounting hole 8. Due to the existence of the gap at the connection part, dividing the mounting hole 8 into a left half-hole and a right half-hole enables the bolt to fix both the left and right sides of the connection surface and the branch pipe 5 simultaneously when fixing, avoiding the phenomenon that one side of the connection surface may fall off and reducing the safety risk.

[0023] Working principle:

[0024] During installation, the plug-in body 4 is placed in the plug-in hole 3. At this time, the upper part of the main body part 401 of the plug-in body 4 abuts against the surface of the plug-in hole 3, and at this time, the surface of the upper part of the main body part 401 of the plug-in body 4 facing away from the limiting part 402 of the plug-in body 4 is attached to the stretching part 202 of the foot pipe 2 to position the plug-in body 4;

[0025] Then proceed to the next tapping operation. Since the lower part of the main body 401 of the plug-in body 4 is a round table surface, with continuous tapping, the main body 401 of the plug-in body 4 is gradually tapped into the plug-in hole 3, so that the surface of the main body 401 of the plug-in body 4 facing away from the limiting part 402 of the plug-in body 4 is closely attached to the upper part of the main body 401 of the plug-in body 4, thereby firmly installing the plug-in body 4 in the plug-in hole 3.

[0026] Then sleeved the foot tube 2 on the branch tube 5. During the process of sleeving the foot tube 2 on the branch tube 5, when the arc-shaped notch on the foot tube 2 abuts against the marked dot 7, the mounting hole 8 and the threaded hole 6 are vertically aligned. Then screw in the bolt to relatively lock the foot tube 2 and the branch tube 5, and thus the whole operation is completed.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A five-star foot, comprising a hollow tapered tube (1) and five foot tubes (2) connected to the hollow tapered tube (1) and distributed in a circular array, characterized in that: The leg tube (2) comprises a main body (201) and a stretching portion (202), and a plug-in hole (3) is provided at one end of the main body (201) of the leg tube (2) close to the stretching portion (202) of the leg tube (2); and further comprises an inserting body (4), and the inserting body (4) comprises a main body (401) and a limiting portion (402), and the main body (401) of the inserting body (4) is composed of an upper and lower part, and the upper part of the main body (401) of the inserting body (4) is a hollow cylinder, and the lower part of the main body (401) of the inserting body (4) is a hollow truncated cone, and the truncated cone is a hollow cone. The bottom surface of the column coincides with the upper bottom surface of the truncated cone; the stopper (402) of the plug-in body (4) is arranged on the upper part of the main body (401) of the plug-in body (4); after the lower part of the main body (401) of the plug-in body (4) is inserted into the plug-in hole (3), the stopper (402) of the plug-in body (4) abuts against the main body (201) of the leg tube (2), and the upper part of the main body (401) of the plug-in body (4) faces away from the stopper (402) of the plug-in body (4) and fits with the stretching part (202) of the leg tube (2); the hollow part of the plug-in body (4) is used for mounting a roller.

2. A five-star foot according to claim 1, characterized in that: The side wall of the hollow tapered tube (1) is provided with five branch tubes (5) spaced apart in a circumferential direction around the hollow tapered tube (1); the branch tubes (5) are welded to the hollow tapered tube (1), and two adjacent branch tubes (5) are welded to each other; the five leg tubes (2) are detachably sleeved on the five branch tubes (5) in a one-to-one correspondence.

3. A five-star foot according to claim 2, characterized in that: The branch pipe (5) is provided with a threaded hole (6), and a marking dot (7) is fixedly provided on the branch pipe (5), and the marking dot (7) is arranged between the hollow tapered pipe (1) and the threaded hole (6); an arc-shaped recess is arranged at one end of the leg pipe (2) close to the branch pipe (5), and a mounting hole (8) is arranged on the leg pipe (2), and the marking dot (7) is used for abutting against the arc-shaped recess when the leg pipe (2) is sleeved on the branch pipe (5), and the marking dot (7) limits the position of the leg pipe (2), so that the mounting hole (8) corresponds to the threaded hole (6) in the upper and lower directions; a bolt is threadedly connected between the threaded hole (6) and the mounting hole (8) for locking the leg pipe (2).

4. The five-star foot according to claim 2, characterized in that: The branch pipe (5) is formed in one piece by bending a steel plate, and the joints are connected by electric welding.

5. The five-star foot according to claim 1, characterized in that: The leg tube (2) is also formed in one piece by bending a steel plate, and the bottom surface of the main body (201) of the leg tube (2) is a connecting surface.

6. The five-star foot according to claim 3, characterized in that: The mounting hole (8) is arranged on the connection surface of the main body (201) of the leg tube (2), and the mounting hole (8) is divided into a left half hole and a right half hole. After the main body of the leg tube (2) is bent, the left half hole and the right half hole are combined to form the mounting hole (8).

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