A seamless rotary drawn conical steel pipe member

Seamless conical steel tubes are manufactured using a spinning process, with internal support plates and internal support rods. This solves the problem of weld seams affecting strength and achieves high strength, lightweight, and convenient wiring.

CN224495978UActive Publication Date: 2026-07-14HANGZHOU HONGDE LIGHTING TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HONGDE LIGHTING TECH
Filing Date
2025-08-12
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing conical steel pipes are fixed by welding, which results in weld seams that affect strength and lack internal support, making them prone to deformation upon external impact.

Method used

Seamless conical steel pipes are manufactured using a spinning process. The pipes have internal support plates and inner support rods. The support plates expand from top to bottom, with the outer ring of the support plates abutting against the inner wall of the steel pipe. The inner support rods are inserted into the through holes to open the support plates. The sealing seat matches the inner wall of the steel pipe, and the pipes are fixed by screws.

Benefits of technology

It achieves high strength, lightweight, and high precision conical steel pipe. The support plate increases the strength of the steel pipe, the wiring groove facilitates the separation of wires, and the appearance is smooth without the need for additional processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a seamless spinning conical steel pipe pole piece, including conical steel pipe, inner support pole and a plurality of support board, the support board is from top to bottom sequentially arranged in the inside of conical steel pipe, and the support board is from top to bottom sequentially enlarged setting, the outer ring surface of support board all is in contact with the inner wall surface of conical steel pipe and sets up, the center of support board all is equipped with through -hole, and inner support pole inserts to the through -hole of vertical opposition, and sets up to the support board setting of outward strutting, and the one end of inner support pole towards conical steel pipe is equipped with the sealing seat. The utility model discloses simple structure, and conical steel pipe adopts spinning process manufacturing, and through inner support board can extrude support board outward, make the outer ring surface of multiple support board can be in contact with the inner wall surface of conical steel pipe, and the strength of conical steel pipe is increased through support board, and through first wiring groove and second wiring groove can separate the arrangement of conductor, and the subsequent distinction is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, specifically to a seamless spun conical steel pipe member. Background Technology

[0002] Conical steel pipes are suitable for poles in communication, lighting, and traffic safety applications. However, current conical steel pipes are fixed together by welding two half-shells together, which results in weld seams that affect their strength. Furthermore, they lack internal support structures. If the outer wall of the steel pipe is thin, it is prone to deformation after being subjected to external impacts, affecting its support strength. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a seamless spun conical steel tube rod, which is manufactured by spinning process and has an internal support plate, so as to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a seamless spun conical steel tube rod, comprising a conical steel tube, an inner support rod, and multiple support plates. The support plates are arranged sequentially from top to bottom inside the conical steel tube, and the support plates are arranged to expand sequentially from top to bottom. The outer ring surface of each support plate is in contact with the inner wall surface of the conical steel tube. Each support plate has a through hole at its center. The inner support rod is inserted into the vertically opposite through hole and extends outward to support the plate. A sealing seat is installed at the end of the inner support rod facing the conical steel tube.

[0005] As a preferred technical solution, the support plates are all circular in shape, and each support plate is provided with multiple first wiring grooves, while the sealing seat is provided with multiple second wiring grooves. The first wiring grooves and the second wiring grooves are arranged perpendicularly to each other.

[0006] As a preferred technical solution, both the through hole and the inner support rod are set in a conical structure. The inner diameter of the through hole is set to gradually increase from top to bottom. The inner diameter of the through hole on the support plate matches the diameter of the corresponding section of the inner support rod. The outer wall surface of the inner support rod is set to abut against the inner wall surface of the through hole.

[0007] As a preferred technical solution, the sealing seat is arranged in a conical structure, the inclination of the sealing seat matches the inclination of the inner wall of the conical steel pipe opening, and the outer ring surface of the sealing seat abuts against the inner wall surface of the conical steel pipe.

[0008] As a preferred technical solution, the bottom surface of the sealing seat is flush with the end face of the opening of the conical steel pipe, and a groove is provided on the bottom surface of the sealing seat, and a rotating block is installed on the inner wall of the groove.

[0009] As a preferred technical solution, a fixing seat is installed at the end of the conical steel tube away from the opening. The fixing seat is provided with a screw hole. A screw is installed at one end of the inner support rod, and the other end of the screw is threaded into the screw hole.

[0010] The beneficial effects of this utility model are: the utility model has a simple structure, the conical steel tube is manufactured by spinning process, and has the characteristics of high strength, lightweight, high precision and smooth appearance. Moreover, the inner support plate can squeeze the support plate outward, so that the outer ring surface of multiple support plates can contact the inner wall surface of the conical steel tube. The support plate increases the strength of the conical steel tube. The first wiring groove and the second wiring groove can separate the wires and facilitate subsequent differentiation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after the conical steel tube is removed;

[0014] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0015] Figure 4 This is a cross-sectional view of the present invention.

[0016] The components are: 1. conical steel pipe; 2. sealing seat; 3. rotating block; 4. second wiring groove; 5. inner support rod; 6. support plate; 7. first wiring groove; 8. through hole; 9. fixed seat; 10. screw. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a seamless spun conical steel tube member of this utility model includes a conical steel tube 1, an inner support rod 5, and multiple support plates 6. The support plates 6 are arranged sequentially from top to bottom inside the conical steel tube 1, and the support plates 6 are arranged to expand sequentially from top to bottom. The outer ring surface of the support plates 6 is in contact with the inner wall surface of the conical steel tube 1. Each support plate 6 has a through hole 8 at its center. The inner support rod 5 is inserted into the vertically opposite through hole 8 and is arranged to push the support plate 6 outward. A sealing seat 2 is installed on the end of the inner support rod 5 facing the conical steel tube 1.

[0021] In this embodiment, the support plates 6 are all circular in shape, and each support plate 6 is provided with a plurality of first wiring grooves 7, and the sealing seat 2 is provided with a plurality of second wiring grooves 4. The first wiring grooves 7 and the second wiring grooves 4 are arranged perpendicularly to each other.

[0022] In this embodiment, both the through hole 8 and the inner support rod 5 are conical in shape. The inner diameter of the through hole 8 is gradually increased from top to bottom. The inner diameter of the through hole 8 on the support plate 6 matches the diameter of the corresponding section of the inner support rod 5. The outer wall surface of the inner support rod 5 is in contact with the inner wall surface of the through hole 8.

[0023] In this embodiment, the sealing seat 2 is arranged in a conical structure, and the inclination of the sealing seat 2 matches the inclination of the inner wall of the opening of the conical steel pipe 1. The outer ring surface of the sealing seat 2 is arranged to abut against the inner wall surface of the conical steel pipe 1.

[0024] After the base is installed, the surface of the base can contact the bottom surface of the sealing seat, thereby further pressing the sealing seat, inner support rod and support plate to ensure the stability of its installation.

[0025] In this embodiment, the bottom surface of the sealing seat 2 is flush with the end face of the opening of the conical steel pipe 1. The bottom surface of the sealing seat 2 is provided with grooves, and rotating blocks 3 are installed on the inner wall of the grooves. The rotating blocks are hexagonal in shape, so that they can be rotated by an electric screwdriver. The rotation of the sealing seat drives the inner support rod and the screw rod, so that the screw rod can be threaded into the screw hole, thereby positioning the inner support rod, the sealing seat and multiple support plates.

[0026] In this embodiment, a fixing seat 9 is installed at the end of the conical steel tube 1 away from the opening. The fixing seat 9 is provided with screw holes. One end of the inner support rod 5 is installed with a screw rod 10, and the other end of the screw rod 10 is threaded into the screw hole.

[0027] Among them, the conical steel pipe is manufactured by spinning process, which has the characteristics of high strength, lightweight, high precision and smooth appearance. It is suitable for poles in communication, lighting, traffic safety and other fields. It can achieve high-precision dimensional control and meet strict technical requirements; thin-wall processing significantly reduces weight; the surface of the spun pole is smooth and no additional processing is required; it can manufacture various complex shapes of conical or cylindrical poles.

[0028] In subsequent use, the support plate is first fitted onto the inner support rod through the through hole until the through hole abuts against the different diameter on the inner support rod. Then, the inner support rod and support plate are inserted into the conical steel tube until the outer ring surface of the support plate abuts against the inner wall surface of the conical steel tube. The inner wall of the conical structure and the outer wall of the support rod can press and position the support plate together. The support plate can provide internal support for the conical steel tube, increasing its strength. The screw can be threaded into the screw hole, and the sealing seat can be inserted into the opening of the conical steel tube.

[0029] In subsequent wiring, the wires can be distributed through the first and second wiring slots on both sides, avoiding the wires from getting tangled together and allowing the wires to be arranged independently, which facilitates subsequent differentiation.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A seamless spun conical steel tube member, characterized in that: The device includes a conical steel pipe (1), an inner support rod (5), and multiple support plates (6). The support plates (6) are arranged sequentially from top to bottom inside the conical steel pipe (1), and the support plates (6) are arranged to expand sequentially from top to bottom. The outer ring surface of the support plates (6) is in contact with the inner wall surface of the conical steel pipe (1). Each support plate (6) has a through hole (8) at its center. The inner support rod (5) is inserted into the vertically opposite through hole (8) and is arranged to open the support plate (6) outward. A sealing seat (2) is installed at one end of the inner support rod (5) facing the conical steel pipe (1).

2. The seamless spun conical steel tube member according to claim 1, characterized in that: The support plates (6) are all circular in shape, and each support plate (6) is provided with multiple first wiring grooves (7). The sealing seat (2) is provided with multiple second wiring grooves (4). The first wiring grooves (7) and the second wiring grooves (4) are arranged perpendicularly to each other.

3. The seamless spun conical steel tube member according to claim 1, characterized in that: Both the through hole (8) and the inner support rod (5) are conical in shape. The inner diameter of the through hole (8) is gradually increased from top to bottom. The inner diameter of the through hole (8) on the support plate (6) matches the diameter of the corresponding section of the inner support rod (5). The outer wall of the inner support rod (5) is in contact with the inner wall of the through hole (8).

4. The seamless spun conical steel tube member according to claim 1, characterized in that: The sealing seat (2) is set in a conical structure. The inclination of the sealing seat (2) matches the inclination of the inner wall of the opening of the conical steel pipe (1). The outer ring surface of the sealing seat (2) is set to abut against the inner wall surface of the conical steel pipe (1).

5. The seamless spun conical steel tube member according to claim 1, characterized in that: The bottom surface of the sealing seat (2) is flush with the end face of the opening of the conical steel pipe (1). The bottom surface of the sealing seat (2) is provided with grooves, and rotating blocks (3) are installed on the inner wall of the grooves.

6. The seamless spun conical steel tube member according to claim 1, characterized in that: A fixed seat (9) is installed at the end of the conical steel pipe (1) away from the opening. The fixed seat (9) has a screw hole. A screw rod (10) is installed at one end of the inner support rod (5). The other end of the screw rod (10) is threaded into the screw hole.