Stainless steel pipe expander with multi-section size inner diameter

Abstract

The utility model discloses a stainless steel pipe expander with multiple sections of inner diameters, which relates to the technical field of pipe expanders and comprises a fixed seat, a base is fixedly mounted on the bottom surface of the fixed seat, an operating platform is fixedly mounted at the top end of the fixed seat, and a hydraulic pump is fixedly mounted on the inner side surface of the fixed seat. A fixing plate is fixedly installed at the top end of the base, and a pipe expanding mechanism is arranged between the fixing base and the fixing plate. A control switch is fixedly installed at the top end of the fixing plate, a connecting rod is fixedly installed on the outer surface of the fixing plate and movably installed on the inner side face of the supporting plate, and a positioning mechanism is arranged between the fixing plate and the supporting plate. According to the stainless steel pipe expanding machine with the multi-section size inner diameter, by starting the hydraulic pump, the hydraulic pump works to drive the telescopic rod to move, the telescopic rod drives the supporting plate to drive the mounting plate to move, the mounting plate drives the fixing disc to move, and the fixing disc drives the pipe expanding base to move, pipe expanding operation on pipes is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe expander technology, specifically a stainless steel pipe expander with multiple inner diameters. Background Technology

[0002] Steel pipes without seams on their surface are called seamless steel pipes. Due to different uses, the diameter of seamless steel pipes varies. Usually, a pipe expander is used to expand the diameter of seamless pipes, which makes it easier to expand steel pipes with different inner diameters.

[0003] However, existing pipe expanders use heaters to continuously heat the steel pipe and then use a support head to expand the diameter, which is not only inefficient.

[0004] To address the aforementioned shortcomings, Chinese Patent Publication No. CN219211361U discloses an energy-efficient stainless steel seamless pipe expander, comprising a worktable. A first support base and a second support base are fixedly mounted on the top of the worktable. The seamless steel pipe body is mounted on the top of the first support base, and a mandrel is mounted on the top of the second support base. A power supply structure is fixedly mounted on the top of the worktable, and an induction coil is mounted on the top of the power supply structure. A controller is mounted on the front of the power supply structure. By incorporating components such as a collection plate, protrusions, a cover, and a push plate, the collection plate collects waste generated during the pipe expanding process. Pushing the push-pull rod and using the push plate, the waste is discharged from the collection plate, reducing cleaning difficulty. Furthermore, the induction coil enables rapid heating of the steel pipe, improving the efficiency of pipe expanding. Simultaneously, electromagnetic induction heating also achieves energy conservation.

[0005] The above-mentioned device uses a collection tray to collect waste residue during use, thereby preventing waste residue from accumulating inside the equipment. However, the installation of the above-mentioned device is relatively cumbersome, as it involves manually tightening bolts to clamp the steel pipe with two clamping blocks and manually rotating the pipe expander to insert it into the steel pipe. Utility Model Content

[0006] The purpose of this invention is to provide a stainless steel pipe expander with multiple inner diameters to solve the problem of low installation efficiency during steel pipe processing mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel pipe expander with multiple inner diameters, comprising a fixed base, a base plate fixedly mounted on the bottom surface of the fixed base, an operating table fixedly mounted on the top surface of the fixed base, a hydraulic pump fixedly mounted on the inner side of the fixed base, a fixed plate fixedly mounted on the top surface of the base plate, and a pipe expanding mechanism provided between the fixed base and the fixed plate; a control switch fixedly mounted on the top surface of the fixed plate, a connecting rod fixedly mounted on the outer surface of the fixed plate, the connecting rod being movably mounted on the inner side of a support plate, and a positioning mechanism provided between the fixed plate and the support plate.

[0008] Furthermore, a telescopic rod is movably mounted on the outer surface of the hydraulic pump, a support plate is fixedly mounted on the outer surface of the telescopic rod, and an mounting plate is fixedly mounted on the outer surface of the support plate. The telescopic rod and the support plate form a telescopic structure.

[0009] Furthermore, the tube expanding mechanism includes a fixed plate, which is fixedly installed on the inner side of the mounting plate. A limiting block is fixedly installed on the outer surface of the fixed plate, and a tube expanding seat is movably installed on the outer surface of the limiting block. The limiting block and the tube expanding seat form a locking structure.

[0010] Furthermore, the positioning mechanism includes a pipe, which is movably abutted against the outer surface of the expansion seat. A positioning seat is movably installed on the outer surface of the pipe, and a connecting rod is fixedly installed on the inner side of the positioning seat.

[0011] Furthermore, the connecting rod is fixedly installed on the outer surface of the fixed base, and a support rod is fixedly installed on the outer surface of the fixed base. The support rod is movably installed on the outer surface of the mounting plate.

[0012] Furthermore, a fixing rod is movably installed on the inner side of the mounting plate. The fixing rod is fixedly installed on the outer surface of the positioning seat, and the positioning seat and the fixing rod form an integral structure.

[0013] Furthermore, a heater is fixedly installed on the inner side of the fixed base, a transmission pipe is fixedly installed on the outer surface of the heater, a connecting pipe is fixedly installed on the outer surface of the transmission pipe, and the connecting pipe is fixedly installed on the top of the fixed base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) By starting the hydraulic pump, the hydraulic pump works to drive the telescopic rod to move, the telescopic rod drives the support plate to drive the mounting plate to move, the mounting plate drives the fixed plate to move, and the fixed plate drives the pipe expansion seat to move, thereby realizing the pipe expansion operation and improving the processing efficiency.

[0016] (2) By manually rotating the expansion seat, the expansion seat can be easily disassembled and replaced, thus facilitating the expansion of pipes with different inner diameters and ensuring the high efficiency of pipe expansion.

[0017] (3) The positioning seat is fixed by the connecting rod, the fixing rod supports the positioning seat, and the positioning seat positions the pipe to prevent the pipe from shifting during processing and causing damage, thereby improving the quality of processing;

[0018] (4) By starting the control switch, the heater can heat the expansion seat, which makes it easier to expand the pipe and reduce the number of personnel involved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the base of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting pipe of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the support plate of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the fixed disk of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the mounting plate of this utility model.

[0025] In the diagram: 1. Fixed seat; 2. Base; 3. Operating table; 4. Fixed plate; 5. Hydraulic pump; 6. Telescopic rod; 7. Support plate; 8. Mounting plate; 9. Fixed plate; 10. Limiting block; 11. Pipe expansion seat; 12. Pipe; 13. Positioning seat; 14. Fixed rod; 15. Connecting rod; 16. Support rod; 17. Heater; 18. Transmission pipe; 19. Connecting pipe; 20. Control switch. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1 - Figure 6The present invention provides the following technical solution: a stainless steel pipe expander with multiple inner diameters, including a fixed base 1, a base 2 fixedly installed on the bottom surface of the fixed base 1, an operating table 3 fixedly installed on the top surface of the fixed base 1, a hydraulic pump 5 fixedly installed on the inner side of the fixed base 1, a fixed plate 4 fixedly installed on the top surface of the base 2, and a pipe expanding mechanism provided between the fixed base 1 and the fixed plate 4; a control switch 20 fixedly installed on the top surface of the fixed plate 4, a connecting rod 15 fixedly installed on the outer surface of the fixed plate 4, the connecting rod 15 being movably installed on the inner side of the support plate 7, and a positioning mechanism provided between the fixed plate 4 and the support plate 7.

[0028] The expansion mechanism between the fixed base 1 and the fixed plate 4 facilitates the expansion of the pipe 12, making it easier for personnel to use. The positioning mechanism between the fixed plate 4 and the support plate 7 enables the positioning of the pipe 12, preventing the pipe 12 from shifting and causing damage.

[0029] Example 2: Based on Example 1, please refer to... Figure 1 - Figure 6 The paper also discloses a pipe expander seat 11, the specific structure of which is as follows: a telescopic rod 6 is movably installed on the outer surface of the hydraulic pump 5, a support plate 7 is fixedly installed on the outer surface of the telescopic rod 6, and an installation plate 8 is fixedly installed on the outer surface of the support plate 7. The telescopic rod 6 and the support plate 7 form a telescopic structure. The pipe expander mechanism includes a fixed plate 9, which is fixedly installed on the inner side of the installation plate 8. A limit block 10 is fixedly installed on the outer surface of the fixed plate 9. The pipe expander seat 11 is movably installed on the outer surface of the limit block 10. The limit block 10 and the pipe expander seat 11 form a locking structure. The positioning mechanism includes a pipe 12, which movably abuts against the outer surface of the pipe expander seat 11. A positioning seat 13 is movably installed on the outer surface of the pipe 12, and a connecting rod 15 is fixedly installed on the inner side of the positioning seat 13.

[0030] By starting the hydraulic pump 5, the hydraulic pump 5 drives the telescopic rod 6 to move, the telescopic rod 6 drives the support plate 7 to drive the mounting plate 8 to move, the mounting plate 8 drives the fixed plate 9 to move, and the fixed plate 9 drives the expansion seat 11 to move, thereby realizing the expansion operation of the pipe 12, improving the processing efficiency. The expansion seat 11 is engaged with the limit block 10. By manually rotating the expansion seat 11, it is easy to disassemble and replace the expansion seat 11, thereby facilitating the expansion of pipes 12 with different inner diameters and ensuring the high efficiency of pipe expansion.

[0031] Example 3: Based on Example 1, please refer to... Figure 1 - Figure 6The positioning seat 13 is also disclosed, and its specific structure is as follows: the connecting rod 15 is fixedly installed on the outer surface of the fixed seat 1, the support rod 16 is fixedly installed on the outer surface of the fixed seat 1, the support rod 16 is movably installed on the outer surface of the mounting plate 8, the fixing rod 14 is movably installed on the inner side of the mounting plate 8, the fixing rod 14 is fixedly installed on the outer surface of the positioning seat 13, and the positioning seat 13 and the fixing rod 14 form an integral structure. The heater 17 is fixedly installed on the inner side of the fixed seat 1, the transmission pipe 18 is fixedly installed on the outer surface of the heater 17, the connecting pipe 19 is fixedly installed on the outer surface of the transmission pipe 18, and the connecting pipe 19 is fixedly installed on the top of the fixed seat 1.

[0032] The positioning seat 13 is fixed by the connecting rod 15, and the fixing rod 14 supports the positioning seat 13. The positioning seat 13 also positions the pipe 12, preventing the pipe 12 from shifting during processing and causing damage, thus improving the processing quality. Furthermore, by activating the control switch 20, the heater 17 can be used to heat the expansion seat 11, thereby facilitating the expansion of the pipe 12 and reducing the need for manual operation.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-section size inner diameter stainless steel pipe expander, comprising a fixed seat (1), the bottom surface of the fixed seat (1) is fixedly installed with a base (2), characterized in that: the top end of the fixed seat (1) is fixedly installed with an operation table (3), the inner side surface of the fixed seat (1) is fixedly installed with a hydraulic pump (5), the top end of the base (2) is fixedly installed with a fixed plate (4), and an expander mechanism is arranged between the fixed seat (1) and the fixed plate (4); the top end of the fixed plate (4) is fixedly installed with a control switch (20), the outer surface of the fixed plate (4) is fixedly installed with a connecting rod (15), the connecting rod (15) is movably installed on the inner side surface of a supporting plate (7), and a positioning mechanism is arranged between the fixed plate (4) and the supporting plate (7).

2. A multi-stage stainless steel pipe expander for expanding the inner diameter of a pipe to a desired size according to claim 1, characterized in that: the outer surface of the hydraulic pump (5) is movably installed with a telescopic rod (6), the outer surface of the telescopic rod (6) is fixedly installed with the supporting plate (7), the outer surface of the supporting plate (7) is fixedly installed with a mounting plate (8), and the telescopic rod (6) and the supporting plate (7) constitute a telescopic structure.

3. A multi-stage stainless steel pipe expander of variable inside diameter as claimed in claim 1, wherein: the expander mechanism comprises a fixed disc (9) fixedly installed on the inner side surface of the mounting plate (8), the outer surface of the fixed disc (9) is fixedly installed with a limiting block (10), the outer surface of the limiting block (10) is movably installed with an expander seat (11), and the limiting block (10) and the expander seat (11) constitute a clamping structure.

4. A multi-stage stainless steel pipe expander of variable inside diameter as claimed in claim 1, wherein: the positioning mechanism comprises a pipe material (12) movably abutting the outer surface of the expander seat (11), the outer surface of the pipe material (12) is movably installed with a positioning seat (13), and the inner side surface of the positioning seat (13) is fixedly installed with a connecting rod (15).

5. A multi-stage stainless steel pipe expander for expanding the internal diameter of a pipe to a desired size according to claim 4, characterized in that: the connecting rod (15) is fixedly installed on the outer surface of the fixed seat (1), the outer surface of the fixed seat (1) is fixedly installed with a supporting rod (16), and the supporting rod (16) is movably installed on the outer surface of the mounting plate (8).

6. A multi-stage stainless steel pipe expander for expanding the internal diameter of a pipe to a desired size according to claim 5, characterized in that: the inner side surface of the mounting plate (8) is movably installed with a fixed rod (14), the fixed rod (14) is fixedly installed on the outer surface of the positioning seat (13), and the positioning seat (13) and the fixed rod (14) constitute an integrated structure.

7. A multi-stage stainless steel pipe expander of claim 1, wherein: the inner side surface of the fixed seat (1) is fixedly installed with a heater (17), the outer surface of the heater (17) is fixedly installed with a transmission pipe (18), the outer surface of the transmission pipe (18) is fixedly installed with a connecting pipe (19), and the connecting pipe (19) is fixedly installed on the top end of the fixed seat (1).

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