CN217273485U

CN217273485U - Steel pipe with bright surface

Info

Publication number: CN217273485U
Application number: CN202123267240.2U
Authority: CN
Inventors: 吴开传; 张晓玲; 徐新生
Original assignee: Suzhou Huachuang Special Material Co ltd
Current assignee: Suzhou Huachuang Special Material Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-08-23
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a bright steel pipe in surface, it includes: bright outer tube, reference column and support core pipe, the support core pipe sets up in bright outer tube with one heart, support core pipe hole both ends and be provided with the screw hole respectively, threaded hole is provided with radial extension to the outside guiding hole of support core pipe, the indent is provided with the annular that corresponds with the guiding hole in the bright outer tube inner wall, the reference column setting is spacing in extending to the annular in the guiding hole. Bright steel pipe in surface, the support core pipe of having designed very much carries out the inside support of bright outer tube, ensures structural strength, especially bending resistance effect, support core pipe can adopt ordinary steel pipe with the cost of reduction in production, can change alone after the bright outer tube wearing and tearing moreover, the dismouting is convenient, the maintenance cost is low.

Description

Steel pipe with bright surface

Technical Field

The utility model relates to a steel pipe technical field especially relates to a bright steel pipe in surface.

Background

The bright steel pipe has high surface smoothness, small friction resistance, good decoration and wide application range. In order to improve the brightness effect of the outer surface of the steel pipe, a stainless steel pipe can be adopted, and mirror polishing is carried out to ensure the brightness of the surface.

The stainless steel pipe is high in price, the production cost can be increased when the stainless steel pipe is used for producing bright steel pipes, particularly when the strength of the bright steel pipes has certain requirements, the stainless steel pipe with the large wall thickness needs to be adopted, the production cost is further increased, the stainless steel pipe needs to be integrally replaced after the surface is abraded, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bright steel pipe in surface guarantees the bright effect on surface, reduces the cost of production and maintenance.

To achieve the purpose, the utility model adopts the following technical proposal:

a surface-polished steel pipe comprising: bright outer tube, reference column and support core pipe, support the concentric setting of core pipe in bright outer tube, support core pipe hole both ends and be provided with the screw hole respectively, threaded hole is provided with radial extension to the outside guiding hole of support core pipe, the indent is provided with the annular that corresponds with the guiding hole in the bright outer tube inner wall, the reference column setting is spacing in extending to the annular in the guiding hole.

Wherein, be provided with the plug screw in the screw hole and carry out the shutoff of guiding hole.

Wherein, be provided with the external screw thread that corresponds with the screw hole on the screw plug excircle.

Wherein, a square hole or a hexagonal hole is concentrically arranged in the screw plug.

Wherein, the length of plug screw is less than the length of screw hole.

And the wall thickness of the bright outer tube is smaller than that of the support core tube.

Wherein, the bright outer tube adopts stainless steel tube.

Wherein, the bright outer tube surface is provided with a chromium coating.

The utility model has the advantages that: the utility model provides a bright steel pipe in surface, has designed the support core pipe specially and has carried out the inside support of bright outer tube, ensures structural strength, especially bending resistance effect, and the support core pipe can adopt ordinary steel pipe in order to reduce the cost of production, can change alone after the bright outer tube wearing and tearing moreover, and the dismouting is convenient, has further reduced the cost of maintaining.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a sectional view taken along line a-a in fig. 1.

Detailed Description

The technical solution of the present invention is further described with reference to fig. 1 to 2 by specific examples.

The surface-polished steel pipe shown in fig. 1 comprises: the device comprises a bright outer tube 1, a positioning column 3 and a supporting core tube 2, wherein the supporting core tube 2 is concentrically arranged in the bright outer tube 1, the lengths of the supporting core tube 2 can be the same, and the supporting core tube 2 supports the bright outer tube 1 to ensure the structural strength. In this embodiment, the bright outer tube 1 may be a stainless steel tube, the surface of the stainless steel tube may be mirror-polished, so as to increase brightness, and the bright outer tube has a good antirust effect and can maintain the bright surface effect for a long time.

In the embodiment, the wall thickness of the bright outer tube 1 is smaller than that of the support core tube 2, and the wall thickness of the bright outer tube 1 is reduced to reduce the cost. The supporting core tube 2 can be made of common steel tubes to reduce production cost, and in addition, the bright outer tube 1 can also be made of common steel tubes when the wear-resisting problem is not considered, and the surface of the bright outer tube is provided with a chromium coating to improve the bright effect.

Threaded holes 5 are formed in two ends of an inner hole of the support core pipe 2 respectively, as shown in fig. 2, guide holes 8 radially extending to the outside of the support core pipe 2 are formed in the threaded holes 5, in the embodiment, the number of each group of guide holes 8 is 4, and the guide holes are distributed on the inner wall of each threaded hole 5 in an annular array mode.

The indent is provided with annular 7 corresponding with guiding hole 8 in the 1 inner wall of bright outer tube, reference column 3 sets up and extends to in annular 7 in guiding hole 8 and carry on spacingly, realizes the fixed of bright outer tube 1 and support core pipe 2 through reference column 3, avoids the problem of axial dislocation.

In this embodiment, be provided with plug screw 4 in the screw hole 5 and carry out the shutoff of guiding hole 8, avoid the problem that drops of reference column 3, promote structural stability. As shown in figure 1, the outer circle of the screw plug 4 is provided with an external thread corresponding to the threaded hole 5, and the screw plug is connected in a threaded mode, so that the screw plug is convenient to disassemble and assemble.

As shown in fig. 1, a square hole 6 or a hexagonal hole is concentrically arranged in the plug screw 4, so that the plug screw 4 can be rotated by a square rod or a hexagonal rod, and the plug screw 4 can be quickly disassembled and assembled. The positioning column 3 can be moved out after the screw plug 4 is disassembled, so that the support core tube 2 and the bright outer tube 1 are separated, the worn bright outer tube 1 can be replaced independently, and the maintenance cost is reduced.

In this embodiment, the length of plug screw 4 is less than the length of screw hole 5, and after plug screw 4 installed, remaining part can also be connected with other screws in screw hole 5, promotes the convenience of connection, and application scope is extensive.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A surface-polished steel pipe, comprising: bright outer tube, reference column and support core pipe, the support core pipe sets up in bright outer tube with one heart, support core pipe hole both ends and be provided with the screw hole respectively, threaded hole is provided with radial extension to the outside guiding hole of support core pipe, the indent is provided with the annular that corresponds with the guiding hole in the bright outer tube inner wall, the reference column setting is spacing in extending to the annular in the guiding hole.

2. The surface-polished steel pipe as set forth in claim 1, wherein a plug screw is provided in the threaded hole to plug the pilot hole.

3. A surface-polished steel pipe as set forth in claim 2, wherein an external thread corresponding to the screw hole is provided on the outer circumference of the plug.

4. The surface-polished steel pipe as set forth in claim 2, wherein a square hole or a hexagonal hole is concentrically provided in the plug screw.

5. A surface-polished steel pipe as set forth in claim 2, wherein the plug screw has a length smaller than that of the screw hole.

6. A surface-polished steel pipe as set forth in claim 1, wherein the wall thickness of the polished outer pipe is smaller than that of the supporting core pipe.

7. The surface-polished steel pipe of claim 1, wherein the polished outer pipe is a stainless steel pipe.

8. A surface-polished steel pipe according to claim 1, wherein the polished outer pipe surface is provided with a chromium plating layer.