Novel center seat with five-star feet

Abstract

The utility model relates to a novel center seat of a five-star foot, which is used for solving the technical problems that some five-star feet mentioned in the background technology are unstable in support, are integrally made of metal materials and are welded to form an integral foot, so that five-star chair feet are heavy, difficult to transport and huge in transportation cost when being transported. Comprising a metal hollow taper pipe and five metal branch pipes, and the five branch pipes are fixedly connected with the hollow taper pipe and evenly arranged in the circumferential direction of the hollow taper pipe. The outer surface of the branch pipe is wrapped with a plastic shell, the plastic shell comprises a main body part and auxiliary parts, the main body part of the plastic shell is fixedly connected with the hollow taper pipe, and the auxiliary parts on the same plastic shell are fixedly arranged on the two sides of the main body part; a mounting assembly is arranged at the main body part of each plastic shell and is used for fixing a foot tube.

Description

Technical Field

[0001] The utility model relates to the technical field of chair leg processing, in particular to a central seat of a new type of five-star foot. Background Technique

[0002] The five-star chair leg refers to the support structure at the bottom of the chair, usually composed of five leg tubes, and its shape is star-shaped. This design is commonly found in office chairs, computer chairs and other seats that require stable support. The design of the five-star chair leg can provide better balance and support, make the chair more stable, and reduce the risk of tipping over.

[0003] In the prior art, generally, the leg tubes are arranged at the five ends of the central seat of the five-star chair leg, and the end of the central seat of the general five-star chair leg is a slender cuboid, so there will be a phenomenon of unstable support; and generally, the whole five-star chair leg is made of metal and formed into an integral assembled leg by welding. Therefore, when transporting the five-star chair leg, it is very heavy, difficult to transport, and the transportation cost is huge. Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a central seat of a new type of five-star foot, which is used to solve some technical problems mentioned in the background technique, such as the unstable support of some five-star feet, and the whole is made of metal and formed into an integral assembled leg by welding. Therefore, when transporting the five-star chair leg, it is very heavy, difficult to transport, and the transportation cost is huge.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A central seat of a new type of five-star foot includes a hollow taper tube made of metal and five branch tubes made of metal. The five branch tubes are fixedly connected to the hollow taper tube and are evenly arranged along the circumferential direction of the hollow taper tube; a plastic outer shell is wrapped on the outer surface of the branch tube. The plastic outer shell includes a main body part and an auxiliary part. The main body part of the plastic outer shell is fixedly connected to the hollow taper tube, and the auxiliary part on the same plastic outer shell is fixedly arranged on both sides of the main body part; an installation component is arranged at each main body part of the plastic outer shell, and the installation component is used to fix the leg tube.

[0007] Working Principle:

[0008] During installation, the leg tube is sleeved on the plastic outer shell and fits with the plastic outer shell, and then the installation component is used to fix the leg tube on the central seat.

[0009] Beneficial Effects:

[0010] In this solution, by wrapping a plastic outer shell on the metal branch tube, compared with the central seat made of metal as a whole, since the plastic outer shell is made of plastic, the quality is lighter, so it is easier to transport during transportation, and the cost is greatly reduced;

[0011] The plastic housing is set as a main part and an auxiliary part, with novel shape, and the supporting surface of the branch pipe is increased. Therefore, the stress area of the connecting surface between the central seat and the foot tube is increased, and the supporting strength of the central seat is increased to meet the requirements of customer testing;

[0012] By setting the installation component, the foot tube is fixed, which is convenient for installation. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 A schematic structural diagram of the reverse side.

[0015] In the above-mentioned drawings: hollow taper tube 1, branch pipe 2, hollow groove 3, threaded hole 4, strengthening member 5, plastic housing 6, main part 601, auxiliary part 602. Detailed Embodiment

[0016] The technical solutions in the present utility model will be further described below with reference to the drawings and embodiments.

[0017] Embodiment:

[0018] As Figure 1 and Figure 2 shown, a central seat of a new type of five-star foot includes a hollow taper tube 1 made of metal material and five branch pipes 2 made of metal material. The five branch pipes 2 are fixedly connected to the hollow taper tube 1 and are evenly arranged along the circumferential direction of the hollow taper tube 1; a plastic housing 6 is wrapped on the outer surface of the branch pipe 2. The plastic housing 6 includes a main part 601 and an auxiliary part 602. The main part 601 of the plastic housing 6 is fixedly connected to the hollow taper tube 1. The auxiliary parts 602 on the same plastic housing 6 are fixedly arranged on both sides of the main part 601, and the auxiliary parts 602 of the plastic housing 6 are also fixedly connected to the hollow taper tube 1; an installation component is provided at the main part 601 of each plastic housing 6, and the installation component is used to fix the foot tube.

[0019] In this solution, by wrapping the plastic housing 6 on the outer surface of the branch pipe 2 made of metal material, compared with the central seat made of metal material as a whole, since the plastic housing 6 is made of plastic material, the quality is lighter, so it is easier to transport during transportation, and the cost is greatly reduced; and when installing the foot piece and using it after installation, the metal collision sound generated will be greatly reduced, with a significant sound insulation effect, and the flatness after assembly is greatly improved;

[0020] The plastic housing 6 is set to include a main body portion 601 and an auxiliary portion 602, with a novel shape and an increased support surface for the branch pipe 2. As a result, the stress area of the connection surface between the central seat and the foot tube is increased, enhancing the support strength of the central seat to meet the requirements of customer tests. By providing an installation component, the foot tube can be fixed, facilitating installation.

[0021] As Figure 2 shown, a hollow groove 3 is opened on the bottom surface of the auxiliary portion 602 of the plastic housing 6. The provision of this hollow groove 3 can significantly reduce the weight of the plastic housing 6, further decreasing the mass of the plastic housing 6, thereby reducing the overall mass of the central seat and lowering the labor intensity during handling; at the same time, it also reduces costs. As Figure 2 shown, the installation component includes a threaded hole 4, which is provided on the bottom surface of the main body portion 601 of the plastic housing 6 and extends into the branch pipe 2. This threaded hole 4 is used for threaded connection with a bolt to firmly sleeve the foot tube on the central seat.

[0022] As Figure 1 and Figure 2 shown, the auxiliary portions 602 of two adjacent plastic housings 6 are fixedly connected, and a reinforcing member 5 is fixedly connected at the connection of the auxiliary portions 602 of two adjacent plastic housings 6 and at the connection between the plastic housing 6 and the hollow taper pipe 1. The provision of the reinforcing member 5 makes the plastic housing 6 sleeved on the outer surface of the branch pipe 2 closely combined with the branch pipe 2, greatly increasing the connection strength between the branch pipe 2 and the hollow taper pipe 1, being firm, durable, and having an elegant appearance.

[0023] As Figure 1 and Figure 2 shown, the reinforcing member 5 is made of a plastic product, and this plastic product is made of high-strength ABS plastic, having the advantages of high tensile strength, wear resistance, and excellent impact toughness. As Figure 1 and Figure 2 shown, the reinforcing members 5 at the connection of the auxiliary portions 602 of two adjacent plastic housings 6 and at the connection between the plastic housing 6 and the hollow taper pipe 1 are integrally formed. Since the entire injection molding process is continuous, energy consumption is reduced; and this forming process is completed by machines and robots, and the automation reduces the manufacturing cost. This automated process not only improves production efficiency but also indirectly reduces costs.

[0024] Working principle:

[0025] During installation, the foot tube is sleeved on the plastic housing 6 and fitted with the plastic housing 6, and then a bolt is screwed into the threaded hole 4 to fix the foot tube on the central seat, thus completing the entire operation.

[0026] 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 purpose 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 new type of five-star foot center seat, comprising a hollow tapered tube (1) made of metal and five branch tubes (2) made of metal, characterized in that: The five branch pipes (2) are fixedly connected to the hollow tapered pipe (1) and are evenly arranged along the circumference of the hollow tapered pipe (1); a plastic shell (6) is wrapped around the outer surface of the branch pipe (2); the plastic shell (6) comprises a main body (601) and an auxiliary part (602); the main body (601) of the plastic shell (6) is fixedly connected to the hollow tapered pipe (1); the auxiliary parts (602) on the same plastic shell (6) are fixedly arranged on both sides of the main body (601); a mounting assembly is arranged at the main body (601) of each plastic shell (6), and the mounting assembly is used to fix the leg pipe.

2. The center seat of the novel five-star foot according to claim 1 is characterized by: The bottom surface of the auxiliary part (602) of the plastic shell (6) is provided with a hollow groove (3).

3. The center seat of the novel five-star foot according to claim 1 is characterized by: The mounting assembly comprises a threaded hole (4), wherein the threaded hole (4) is arranged on the bottom surface of the main body (601) of the plastic housing (6), and the threaded hole (4) extends into the branch pipe (2).

4. The center seat of the novel five-star foot according to claim 1 is characterized by: The auxiliary parts (602) of two adjacent plastic shells (6) are fixedly connected, and the connection between the auxiliary parts (602) of the two adjacent plastic shells (6) and the connection between the plastic shell (6) and the hollow tapered tube (1) are both fixedly connected with reinforcement pieces (5).

5. The center seat of the novel five-star foot according to claim 4 is characterized by: The reinforcing member (5) is made of plastic.

6. The center seat of the novel five-star foot according to claim 4 is characterized by: The reinforcing member (5) at the connection between the auxiliary parts (602) of two adjacent plastic shells (6) and at the connection between the plastic shell (6) and the hollow tapered tube (1) are integrally formed.

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